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Academic education is an important aspect of individual and societal development, contributing to knowledge creation and sharing, enriched perspectives, and effective communication in different settings. It fosters cross-cultural understanding, intellectual aspirations, analytical thinking, and a high level of self-awareness. In the hierarchy of educational degrees, the Doctor of Philosophy (PhD) is considered the highest academic qualification. It represents a significant milestone that can have a lasting impact on one's scholarly journey. In your opinion, what is the role of a PhD in one’s academic advancement?
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Dear Professor Karl Pfeifer, thank you for your response. Yes, a PhD has crucial importance for advancing an academic career. Besides scholarly progression, this qualification can lead to intellectual heights, metacognitive depths, and psychological resilience.
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Would workers desire labor unions less if Maslow’s Hierarchy of Needs guided distributing an economic basis for each individual? How? Why?
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If Maslow’s Hierarchy of Needs guided the distribution of economic resources, workers might desire labor unions less because:
  1. Basic Needs Met: If employers effectively address physiological and safety needs (e.g., fair wages, job security), workers may feel less compelled to unionize for these essentials.
  2. Higher Needs Focus: With foundational needs satisfied, workers might prioritize self-actualization and belonging, potentially leading to greater satisfaction within existing organizational structures.
  3. Increased Employer Responsibility: If companies actively promote personal and professional growth, the perceived need for collective bargaining may diminish.
However, some workers might still seek unions to address inequities, ensure fair practices, or advocate for their higher-level needs, indicating that unions may still play a crucial role in advocating for workers' rights and interests.
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I think it suggests that while individuals may have varied preferences, they often share common aversions and basic, universal requirements like safety, food, and well-being. It highlights the balance between personal taste and shared human needs.
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Leniency can go to people who committed crimes out of desperation, based on Maslow's Hierarchy of Needs.
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in my view, i think justice system can become more human, by understanding the essence of a human being in regard to dignity or identity. In this case, social justice can be applied by using its main five principle, namely; Equity, Equality, diversity, human rights and participation.
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# 130
Dear Igor Sbovoda and Dmytro Lande
I read your paper
Enhancing Multi-Criteria Decision Analysis with AI: Integrating Analytic Hierarchy Process and GPT-4 for Automated Decision Support
My comments
1- First of all, l was pleasantly surprised by the subject of your paper; it appears to be the first, at least for me, to incorporate AI in MCDM
2- In page 2 you say, referring to AHP “This method was designed to address complex decision-making scenario”
Not in my opinion. It was designed according to a lineal hierarchical structure that is not adequate to model a complex scenario.
The pivotal moment you refer is inexact. At the time of its appearance there were other MCDM methods addressing complex problems, starting 1n 1948
You say: “providing a rigorous framework for decomposing decision problems into a hierarchy of more easily comprehended sub-problems, each of which can be analyzed independently”
Breaking a problem is useful to understand it, but not for solving, and I am afraid that they cannot be analyzed independently because normally they are related according to the Systems Theory, and thus, they are normally interconnected. It is like for designing a car you study independently the engine, the transmission, the aerodynamics, the electric system, etc., but all of them are related. The engine depends on the aerodynamic of t he body, depends on the electricity consumed by the car and from the mechanics of the transmission, that is the gear box and cardan shaft
A MCDM problem is a system, and as that it cannot be solved adding up the best results of each part. The whole is generally no equal to the sum of the parts.
3- You say “specially designed format that facilitates a forced choice paired comparison, enabling decisionmakers to systematically evaluate the importance of each criterion against others”
Pair-wise comparison is not normative but descriptive, and as that irrational. On what grounds can you assert that criterion C3 is 3 times greater than criterion C1? Only on the DM intuition, mood or imagination. Nothing scientific indeed
4- “Its unique capability to merge mathematical precision”
How can you say that a method based on intuitions and feelings, has mathematical precision?
5- As you said, the GPT is trained at large data, which is the heart of AI. However, even when your idea of using GPT is indeed revolutionary and very interesting, apparently it does not take into account that in MCDM, each problem, even on the same subject of another one, can be different.
And this is because it is true that you can get valuable information on the type and number of criteria using GPT, but don’t forget that in real practice those are determined based on the series of alternatives they will must evaluate, and as you know, this is opposite to the AHP procedure, that first selects the criteria.
The GPT most probably can give you information linking criteria to alternatives, but it is for me unprovable that those may coincide with your case.
Consequently, if a company decides to analyze three different projects, the DM must know first which are the projects, and then, go to the technical person that in the company is responsible for each area, as engineering, finances, costs, etc. It is them who know the problem and can tell the DM which is the criteria that for each individual point of view should be considered. It is from them, after many meetings and discussions, that normally take into account personal interests, that the final set of criteria is established. This is something that the GPT cannot do.
You have to work with a unique organization, not with the average of 1000, because the number of stakeholders, their ideas, their needs, their wishes and their interest are not condensed in a set given by GPT.
Remember that in despite of the tremendous experience we have on agriculture, we are still unable to predict the volume of the next harvesting or even predict when it is going to rain in adequate amounts for crops
6- Something that you did not mention is that AHP demands independent criteria, something that practically does not exist in the real world. How do you query GPT about this? Will you ask it to select criteria that satisfy this condition? If you do not input your alternatives, how it will know that must adjust to such stringent condition? , albeit you did not to worry for it if you work with ANP.
It appears from your questions to GPT that you are maximizing everything. How do you proceed if you have to minimize a criterion like ‘cost’, together with 10 or 15 more criteria?
7- In page 6 you do not detail detail the final criteria. Curiously, don’ you think that communications as well as back up systems are missing? Common sense tells you that that is fundamental
8- In page 6 you asked a machine for subjective values? How can a machine do that? It only got a set of real values and it is unable to intuit anything; that is for human and may be for animals.
9- In gage 13 you talk about matrix consistency. Could you please explain why the estimates of a person must be consistent or transitive? Who says that?
And most important, is there an axiom or theorem that demonstrates that what is the mind of persons is replicable in the real world, which is in general intransitive?
I hope my comments may help you
Nolberto Munier
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AHP based MCDA Mobile App "Decision Mentor"
I am just sharing about the mobile application for MCDA based on the Analytic Hierarchy Process (AHP), the app is named Decision Mentor, designed to support decision making to Individuals, Decision Mentor is AI Integrated, to recommend Criteria contexitual to the Decision Problem Titled in the app !
Current version is connected with ChatGPT-4o !!
All interested are most welcome to try to use the Mobile App, available at:
Highly appreciated to know all the users experience.
~Shashi Bhattarai, Co-creator
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How does the hierarchy of evidence help in assessing the
quality of studies based on different research questions?
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hierarchy of evidence for RCTs
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I believe this is an answer to your question.
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Why is it important for healthcare practitioners to understand the hierarchy of evidence?
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Understanding the hierarchy of evidence is essential for healthcare practitioners for several reasons:
  1. Informed Decision-Making: Knowledge of the hierarchy of evidence enables healthcare practitioners to critically appraise research studies and determine the strength and reliability of the evidence supporting various interventions or practices. By understanding which types of studies provide the highest-quality evidence, practitioners can make more informed decisions about patient care, treatment strategies, and healthcare policies.
  2. Optimizing Patient Outcomes: Evidence-based practice relies on integrating the best available evidence with clinical expertise and patient preferences to optimize patient outcomes. Healthcare practitioners who understand the hierarchy of evidence can identify and prioritize high-quality research studies that provide robust evidence for effective interventions and treatments. This ensures that patients receive care based on the most up-to-date and reliable evidence, leading to improved outcomes and quality of care.
  3. Minimizing Bias and Errors: Awareness of the hierarchy of evidence helps healthcare practitioners recognize the limitations and potential biases of different types of research studies. By critically evaluating the methodology, design, and risk of bias of studies at each level of evidence, practitioners can minimize the influence of confounding factors, reduce errors in judgment, and make more accurate interpretations of research findings.
  4. Resource Allocation and Healthcare Policy: Healthcare resources are finite, and decisions about resource allocation and healthcare policy should be informed by the best available evidence. Understanding the hierarchy of evidence allows healthcare practitioners to prioritize interventions and allocate resources based on the strength of the evidence supporting their effectiveness and cost-effectiveness. This ensures that resources are directed towards interventions with the greatest potential to benefit patients and improve population health outcomes.
  5. Continuous Professional Development: Continuing education and professional development are essential for healthcare practitioners to stay abreast of advancements in their field and maintain competence in evidence-based practice. Knowledge of the hierarchy of evidence facilitates critical appraisal skills and lifelong learning, enabling practitioners to critically evaluate new research findings, update their clinical knowledge, and adapt their practice in response to evolving evidence.
Overall, understanding the hierarchy of evidence empowers healthcare practitioners to practice evidence-based medicine, make informed decisions, minimize bias and errors, optimize patient outcomes, allocate resources effectively, and engage in lifelong learning and professional development. By incorporating the best available evidence into clinical practice, practitioners can provide high-quality, patient-centered care that aligns with the principles of evidence-based practice.
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I'm struggling to assign a stereodescriptor for the C8 position of the molecule. Both ChemDraw and ACDlabs give me 8R as a result. But if we draw the simplified hierarchial diagraph according to last UIPAC recommendations (https://iupac.qmul.ac.uk/BlueBook/P9.html#9103) for this chiral center it's not that clear to me that C7 precedes C9, it looks rather the opposite to me. And I couldn't find any relevant example in the recommendations. Does anyone else have counterarguments against 8R?
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Well, I don't see any troubles here. If the lower branches don't give you an answer, you have to consider the higher branches.
In other words: C[7]H(OC[1']...)(C[6]HO...) precedes C[9]H(OC[1]...)(C[12]H2...], because in the former residue there is C[6]-O, while there is no O on C[12].
In the end, you have to compare whole residues.
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Dear colleagues,
MGIMO University is conducting the International Hierarchy Expert Survey-2022 (IHES-2022). The survey is aimed at tracking how the status and roles of states have changed since last year. We invite International Relations scholars, as well as practitioners and experts in IR and related fields to join.
To complete the questionnaire, please access the following link:
It will take an estimated 20-25 minutes to fill out the form.
This the second expert survey on international hierarchy conducted by our research team. Results of IHES-2021 have been published in an open access research paper and are attached to this discussion. However, to avoid the anchoring effect, we kindly ask participants to complete this year's survey before reading the previous results.
We guarantee confidentiality of all participants, only aggregated results will be published.
We gratefully thank you,
Research Team on International Hierarchy
Institute for International Studies,
MGIMO University
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What is the ideal sample size for an HCA? I read that this clustering method is best suited for small sample sizes, but would it be appropriate for a sample size of n=340 observations?
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I don't think you'd have any problem applying any reasonably kind of HCA to 300-odd objects. It will certainly 'work' in the sense of giving you clusters, and it is at least an order of magnitude short of a size that would make a pairwise distance matrix impossible to store. In that sense, 300 _is_ 'small'.
It is probably too big for simple visual interpretation of a complete hierarchical clustering, though, if that's what you were intending - that goes down to individual objects/individuals and it can get hard to see what's really going on.
Otherwise, for a lot of ordinary purposes, 300 is likely to be _big_ enough to be useful , and that's usually the more important problem if you want to draw any inferences or classify other objects later. Others above have pointed to recommendations. 30 (or more) per expected subgroup is a fair rule of thumb. But it does depend on how many variables you have and what the typical ranges are between and within groups. I'll stick my neck out a little and say there's _no_ simple way of getting an 'ideal' number for clustering in advance; you'd have to know quite a lot about your particular population and your intended use to even make a start on the question.
And an important rider, after all that, is to plan for some cross-validation to make sure your clustering isn't just rolling dice ...
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I want to annotate each gene in the Homo sapiens taxon with its respective GO terms and its hierarchical parent terms in the GO database. How can I systematically do that? While I am aware that the obo file contains information such as "is a," "part of," and "regulates," it lacks a comprehensive hierarchy from child GO terms to all their parent terms. Is there an existing method available to achieve this systematic annotation, or do I need to develop a custom script to extract this information from the obo file?
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Mohammad Shahbaz Khan Certainly! Although the data is currently presented in Gene Ontology (GO) format, I want to create a comprehensive graph that visualizes the entire information. Further, I intend to annotate each gene with its corresponding GO term, including all parent terms associated with each gene.
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Is the hierarchical structure observed in the Gene Ontology (GO) OBO-basic file limited to the 'is a' relationship, or do the relationships 'has part' and 'regulates' also exhibit a similar hierarchical nature and can be propagated to the root?
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The hierarchical structure observed in the Gene Ontology (GO) OBO-basic file is primarily based on the "is a" relationship, which represents the parent-child relationship between terms. The "is a" relationship defines a broader term (parent term) and a more specific term (child term), indicating a hierarchical structure.
However, the GO also incorporates other types of relationships beyond "is a" to capture additional aspects of gene function. Two such relationships are "has part" and "regulates":
  1. "Has part" relationship: This relationship indicates that a term represents a part of another term. It describes a physical or functional subcomponent of a larger entity. While the "has part" relationship does not strictly follow a hierarchical structure, it provides additional information about the organization and composition of biological processes or structures.
  2. "Regulates" relationship: This relationship describes the regulatory interactions between terms. It indicates that a term controls or influences the activity or expression of another term. Similar to the "has part" relationship, the "regulates" relationship does not strictly conform to a hierarchical structure.
Although the "has part" and "regulates" relationships do not exhibit a hierarchical nature like the "is a" relationship, they can still be informative for understanding the functional relationships between terms. However, the propagation of these relationships to the root of the hierarchy is not as straightforward as it is with the "is a" relationship. The propagation of relationships to the root may require additional analysis and considerations based on the specific research context or requirements.
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Is circular manufacturing for sustainable manufacturing, or the reverse?
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Circular manufacturing and sustainable manufacturing are two interconnected concepts that can complement each other in the pursuit of environmental and economic goals. While they share similar objectives, they differ in focus and approach. Here's an explanation of their hierarchy:
1. Sustainable Manufacturing: Sustainable manufacturing encompasses a broad set of principles and practices aimed at minimizing the environmental impact of manufacturing processes and products throughout their lifecycle. It involves reducing resource consumption, minimizing waste generation, and optimizing energy efficiency. Sustainable manufacturing strives for a balance between economic, social, and environmental considerations. It focuses on the overall sustainability of manufacturing operations, including materials sourcing, production techniques, and waste management.
2. Circular Manufacturing: Circular manufacturing is a subset of sustainable manufacturing that specifically emphasizes the principles of a circular economy. It goes beyond reducing environmental impact and seeks to create a closed-loop system where resources are used more efficiently and waste is minimized. Circular manufacturing aims to design products for longevity, recyclability, and reusability. It involves implementing strategies such as recycling, remanufacturing, and product refurbishment to extend the lifespan of materials and components. The goal is to create a regenerative system where materials and products are continually cycled back into the production process, reducing the need for virgin resources.
In terms of hierarchy, sustainable manufacturing serves as the broader framework that encompasses various practices and approaches to make manufacturing more environmentally friendly. Circular manufacturing, on the other hand, is a specific strategy within sustainable manufacturing that focuses on achieving a circular economy by closing resource loops and maximizing the reuse and recycling of materials.
While circular manufacturing can be seen as an advanced stage of sustainable manufacturing, it is important to note that both concepts are interconnected and mutually reinforcing. Sustainable manufacturing provides the foundation for circular manufacturing by addressing the broader environmental and social aspects, while circular manufacturing provides specific strategies and methodologies to achieve a more circular and resource-efficient economy. Together, they form a comprehensive approach to manufacturing that promotes environmental stewardship and long-term economic viability.
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answers must be detailed.
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Maslow Hierarchy of Needs in digital age; In the schools and workplace
Androids, laptops, E Tabs, All sorts of digital gadgets are required in the base of pyramid (These all gadgets are included in physiological needs in digital age). All other levels of Pyramid are ok with and without these above mentioned digital gadgets (For some, May be not Ok without the gadgets).
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Dear Mohammad Masfiqul Alam Bhuiyan and Ahmed Hamma
I read your paper:
A Hybrid Multi-Criteria Decision Support System for Selecting the Most Sustainable Structural Material for a Multistory Building Construction
And these are my comments:
1- My comments do not refer to structural engineering but to MCDM procedures. There is no doubt that you have made extensive research for this article. I think that you took good care in selecting experts in construction engineering, but I am afraid that the same care weas not taken in the application of the MCDM methods. There are some incongruencies as well as inaccuracies.
You want to select the most sustainable material for a building construction, which implies considering at the same time and jointly the economics, the environment and the social field. However, you selected a method, AHP, which works opposite, since it analyzes separately and in a linear hierarchy, each of the four main criteria. I am not blaming the method; it was designed for that purpose; it is the incorrect use of a method that I understand is incorrect.
For instance, in Figure 2, the four criteria are not connected, which is not real.
Criteria like Technical and Economics are normally strongly related. For example, the technical department decides to use radiant flooring for heating (a technical system), which has a cost different of using a hot-water system (a different technical system). Technical is also related to environment, as in the case that technical decides to recycle waste water produced in the building, by treating it, it involves technical issues, economics and environment. They are not isolated.
As another example, suppose that engineering proposes to use radiant flooring, and the financial guys say that they don’t agree because there is no money for that, so they ask engineering to look for a less expensive heating. As you can see, considering individual aspects and solving them linearly, and then, adding them up, does not make sense.
This is the real-world.
2- In page 4 you say “The remarkable contributions of this research comprise the integration of technical aspects with the commonly used three pillars (economic, social, and environmental)”
Not so remarkable or new; this integration has been done for decades before your paper.
3- In page 5 you say “. Subjective (qualitative) methodsand objective (quantitative) methods are the two types of weighing techniques”
This is inexact. There are not qualitative and objective methods. That denomination applies to criteria. Normally, a MCDM handles both.
4- In reality, I don’t think that you can address a problem like this with four main criteria. What about risk, legal issues, topography, access to the site, material supply, constructors’ expertise, etc.?
5- In page 1o you say “3.6. Fuzzy AHP”
According to Saaty, the AHP creator, AHP never should be used with fuzzy logic, because AHP is already fuzzy.
6- In page 11 you speak about consistency. Yes, there is a FORCED consistency regarding the DM values.
This consistency indicates that the DM was more or less articulate; remember that there is a formula that forces him to be coherente, like it or not, and that the coherence or transitivity is his, andnot related with the real world, which is normally intransitive.
7- In page 21 you say “Steps 1 and 2: A pairwise comparison matrix was developed for each user to compute the relative priorities of criteria from the user’s point of view”
Suppose that you need to pair-compare criterion Stress, that is, the force applied in the middle of a beam, and Strain, which is its deformation regrading its central axis. Sincerely, I don’t imagine an engineer doing this comparison and deciding for instance, that stress is three times more important than strain. In my opinion, it is absurd; however, this is what pair-wise comparison is about. How can anybody trust the result of this comparison, and don’t forget that there can be ‘n’ engineers giving different values.
Considering this aspect, which is the object in performing fuzzy with arbitrary data?
8- In page 24 you say “The owner’s opinion was given a higher weightage of 40%, while the rest of the team received 30%”
Why? Because he is the owner and, in this condition, he knows better than other experts? This does not look very professional.
9- In page 26 you determine that RC is the best option. I wonder how you can reach that conclusion without considering the structural characteristics of the four alternatives.
It suggests that in this study all modulus of elasticity are the same, when it is known than this is different between different options, and even in different kind of timber.
10- What I still don’t understand is why you compute two different kinds of weights, objective and objective. Of course, the first is useful to consider the experience and know-how of the DMs, but how do you use both?
It is necesario to remember that both types of weights do not have the same meaning. Weights from entropy or using statistics, represent quantity of information of each criterion and they are capital to evaluate alternatives.
Weights from AHP are simply a relative measure of criteria importance and have no relation to alternatives evaluation.
11- In page 28 you say “In the end, this application generated several outputs for the users
If at the end the users have several outputs, it appears that they came back to square one. In my opinion, what they need is one solution, not several.
I hope these comments may help you
Nolberto Munier
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Systematic reviews are a type of literature review that aim to identify, appraise, and synthesize all the available evidence on a particular research question or topic. They are considered the highest level of evidence in the hierarchy of evidence and are widely used to inform clinical practice and policy decisions. Therefore, it is important that systematic reviews are conducted in a thorough and rigorous manner.
check out the full post here:
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You can also refer to this paper:
Lan Ma, Saeed Pahlevan Sharif & Kok Wei Khong (2022) What factors drive the purchase of paid online courses? A systematic literature review, Journal of Marketing for Higher Education, DOI: 10.1080/08841241.2022.2101172
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It is necessary to select biomaterials (hydroxyapatite, 45c5 bioglass and A/W bioglass) using a hierarchical method, but I cannot find indicators of biocompatibility, biodegradation, osteoconductivity of these materials. What studies or standards have information about these indicators of these materials? Thank you!
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The choice must be according to the intended application, taking into account desired characteristics and limitations to be considered.
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In comments of a previous thread equal partition of λ and f were thought to apply in GR.
f'/f = α
λ'/λ = α
c'/c = α2
These relationships may extend into Hierarchy of Plancks which is further defined.
dE/df = n h
E = h f
c = λf
c' = λ'f'
Parameter n is an integer from one to five or maybe eight, the spin angular momentum quantum number of oscillators in vacuum space.
E'/E = (f'/f)n
(E'/E)2 = (c'/c)n
(h'/h)2 = (c'/c)(n-1)
GR is also defined in this system (n=1) and applies to most observed conditions.
Widely accepted energy and momentum are applied unchanged to Hierarchy of Plancks.
E2 = (mc2)2+ (pc)2
pc = E(v/c)
dE = v dp
Equal partition is not prevented by these equations and not required by them.
The modified Lorentz Transformations can be applied from GR to HP with no further modification for Hierarchy of Plancks.
1/f' = (γ/α)( 1/f - (v/c)(1/f) )
λ'= (γα)( c/f- (v/c)(c/f) )
This is one of the main arguments for equal partition in Hierarchy of Plancks, that modified Lorentz Transformations are not changed From GR to HP.
Hierarchy of Plancks is applied at very high energy densities. It prevents infinities from occurring in GR, Also prevented is degeneracy of quantum oscillators when all of the possible energy states are in danger of being filled. HP creates additional energy states that can be filled, preventing degeneracy.
In the LC model of an electronic oscillator, impedance Z of vacuum space is thought to be constant over all quantum states of n. Capacitance C and Inductance L are given by magnetic and electric constants.
Z2 = μ/ϵ
Z'2 = μ'/ϵ'
μ'/μ = ϵ'/ϵ
Equally portioned for all n.
c'2 = 1/(μ'ϵ')
c2 = 1/(μϵ)
C' = ϵ'λ' = ϵ'λα
L' = μ'λ' = μ'λα
C = ϵλ
L = μλ
ϵ' = ϵ/α2
μ' = μ/α2
Frequency can also be given in agreement with GR and HP equal partition.
c'2 = 1/(μ'ϵ')
c2 = 1/(μϵ)
f'2 = 1/L'C' = α2/ LC
f2 = 1/LC
f' = α f
A second main argument in favor of equal partition in Hierarchy of Plancks is that constant impedance of vacuum space oscillators requires it.
Can Equal Partition Of Frequency and Wave Length Be Extended From GR To Hierarchy Of Plancks?
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Jerry
I really dont know where you get all this stuff, Your research??
It sounds very strange to me
Relation between frequency and wavelenth variation:
You could use a straightforward approach using c= lamba nu
then calculate d(nu)/dt for example.
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Is there a mat-lab built interface to run fuzzy AHP that has three layers of decision hierarchy, the way we run fuzzy?
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Dear Mohamed, Thank you very much, I will go through them. Regards
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In the health science, the Hierarchy of evidence is very clear, and distinguish between the all types of evidence, is a sistematic process, with steps and methodologies that clarify the process. But, some times is necessary use evidence from another souerces like, social sciences, economics, education, etc. and in that cases, the quality of evidence is of importance to be used and how evaluated this is blurred , so i would know how this can be evaluated and how is it ranked
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Cecilia Veas In the social sciences we do not have a so called 'hierarchy' of evidence. What we do have is a range of both quantitative and qualitative methods, each of which serves a purpose. Often several methods are used in order to raise validity. This is called 'triangulation'. There are many excellent social science studies that have used triangulation, by very respected academics. we regard different research methods as horses for courses, that is, each has a value and it depends on the nature of the research topic as to which method or methods are used. So mostly all are of equal value, although there is some dispute among academics as to whether quantitative data is superior to qualitative data.
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Hierarchy Of Plancks theory in one quantum state of spin angular momentum (n=4) predicts spontaneous wormholes open around a fast moving mass. For a swarm of virtual particle masses at high speed about 0.99c a spherical shell of the entire universe could rapidly inflate until the speed drops to about 0.96c.
A theory needs to be tested. This theory depends on altered quantum states of vacuum space. It depends on a local vacuum stress field of kinetic energy exchanging quanta of energy with the mass or virtual mass. It also depends on kinetic energy bending space backward compared to the curving of gravity.
Is Hierarchy Of Plancks Responsible For Rapid Inflation Of The Early Universe?
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gravitational Plancks constant must be about work as potential energy. This work is 'collapsing' in its essense?
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Apologises I'm really confused and don't know how to do, appreciate any guidance you can give
Aim
1. To explore if anxiety is predicted by stress and treatment delay and whether this is moderated by Brief Cope strategies (Brief COPE) .
Design
1 continuous outcome variable – anxiety (let’s call this H)
2 continuous predictor variables (let’s call these D, S)
3 Continous Moderator - (lets call these BC - ef, bc pf and bc avoidant). These are inputted into SPSS as 3 separate variables as the questionnaire b-cope does NOT allow you to create a total score (by adding ef + pf + avoidant).
- D – delay
- S – Stress (measured by pss-10)
- BC pf - Brief Cope - 1 (consists of 4 questions with each questions represent a different factor)
- BC ef - Brief Cope – 2 (consists of 9 questions with each questions represent a different factor)
- BC avoidant - Brief Cope – 3 (consists of 4 questions which each questions represent a different factor)
To answer the aim I know i need to complete a hierarchial multiple regression but I don't know what to enter on what model or whether I need to do separate regressions and again what should be entered with what.
Q1. Can you please advise how my regression models would look as I can't work this out given my predictors, moderators and outcome variable listed below.
E.g. Model 1 ...
Model 2 ...
Q2. Do I need to look at interactions? If so which ones, how would this be put into SPSS ie in which models.
Possible Interaction examples ?
Stress x bc ef
Stress x bc pf
Stress x avoidant
Delay x bc ef
Delay x bc pf
Delay x avoidant
Q3. Do I need to run separate hierachial multiple regressions? If so can you please write how the model would look ie. Model 1 ..
Model 2...
To confirm I have completed only parametric tests. I have 1 group completing all predictor /moderators variables.
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It sounds like you would end up with a regression model in which you have a very large number of predictor (independent) variables as well as many interaction terms (since you have so many different COPE variables). My advice would be to first think about meaningful ways to reduce the number of COPE variables to be included in the model, for example, by aggregation (calculation of a summary COPE score), factor analysis, or simply selection of the theoretically most meaningful COPE variables. Otherwise you might run into various problems when entering all individual COPE items into the regression (e.g., potential collinearity, too many individual significance tests, large model with many predictors, loss of power to detect interaction and other effects).
Other than that, you could run a hierarchical regression model with only the main effects (predictors, no interaction terms) in the first model, then add the interaction terms in Model 2 to see if they add anything to the prediction of the outcome. But, once again, I would try to reduce the overall number of predictors first to avoid problems in the analysis.
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Do you dummy cope gender within Pearson r correlation?
Do you dummy code gender within multiple hierarchial regression?
Do you have to dummy code gender even when your aims of your study are not looking at gender?
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that should read ratio data, not ration data.
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Hi,
Apologises if the questions at the end are simple but they are causing me a lot of confusion and I'm not sure what to do.
Appreciate any guidance you can give
Aims
1. To explore if their is a relationship between Hai (anxiety) and (Pss-10) stress and treatment delay.
2. To explore if anxiety is predicted by stress and treatment delay and whether this is moderated by Brief Cope strategies (Brief COPE) .
Design
1 continuous outcome variable – anxiety (let’s call this H)
continuous predictor variables (let’s call these D, S, BC)
Control variables (let’s call this age (which is continuous) and gender (which is catergorical - 2 levels))
- D – delay
- S – Stress (measured by pss-10)
- BC - Brief Cope - 1 (consists of 4 questions with each questions represent a different factor)
- BC - Brief Cope – 2 (consists of 9 questions with each questions represent a different factor)
- BC - Brief Cope – 3 (consists of 4 questions which each questions represent a different factor)
I have completed a Pearson r correlation and identified which predictor variables and control variables correlate to H. All the assumptions for this test were met. The results of this test answered the aim 1 wrote above.
To answer aim 2 noted above i completed a hierarchical multiple regression with the models as follows:
Outcome variable for all models = anxiety
Model 1 age and gender (control)
Model 2 age, gender and delay
Model 3 age gender, delay and stress
Model 4 age, gender, delay, stress and BC 1 (composed of 4 predictor variables entered)
Model 5 age, gender, delay, BC 1 (composed of 4 predictor variables entered), BC 2 (composed of 5 predictor variables entered)
Model 6 age, gender, delay, BC 1 (composed of 4 predictor variables entered), BC 2 (composed of 5 predictor variables entered) and BC 3 (composed of 4 predictor variables entered)
The total variance explained was 55% and the findings in the Model summary were found to be significant except for Model 4. Hierarchical multiple regression assumptions were met too.
I also found that statistical significance in the Anovas for Model 1, 2, 3, 5 and 6 (within the hierarchical multiple regression).
This is where I have stopped my analysis (not sure if that is right or wrong).
To confirm I have completed only parametric tests as described above. I have 1 sample group completing all predictor variables.
I have the following questions:
Q0. Is the above analysis tests done so far correct in view of the aims described above?
Q1. How do I look at the components of BC 1, 2, 3 (ie determine if the individual predictors variables – 13 in total) predict anxiety? Hierarchial regression is limited to 9 blocks that can be entered at any one time. I did include these individual predictor variables (13 total in the pearsons r correlation with anxiety) and established their were significant relationships. Is this enough ?
Q2. Do I need to complete post hoc tests for the significant anovas in the hierarchial regression? If so what test would I do ? and how would this be entered into SPSS? (To confirm I have 1 sample group answering all the predictor variables described above).
Q3. Have i missed anything from the analysis? Do I need to conduct any further analysis to answer the above aims ? If so what analysis?
Q4. How do I know if coping strategies moderates the relationship of stress and delay in treatment in predicting anxiety.
Appreciate in any support that can be provided.
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Hello Satwant,
That's a lot of questions!
For the most part, your hierarchical regressions should allow you to determine whether the brief cope scores add to the explanatory power for differences in anxiety scores beyond what the base variable set can explain. From this, it sounds as if the BC-1 items add the least to the mix (compared to BC-2, BC-3).
However, I probably would have looked for single scores to represent each of the three purported BC factors instead of entering individual items as IVs. Perhaps factor analysis or some other method of generating a composite score for each factor would be helpful here (and make your interpretation of significant effects a bit more straightforward).
I don't see any specific need for post hoc tests following a regression (your Q2).
If you're interested in moderation effects attributable to coping, the key is to evaluate whether BC scores interact with one or more target IVs to increase the explained variation beyond what the BC score and the target IV can account for, without an interaction term.
Good luck with your work.
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As a starting point in structuring human-machine interaction research in the field of innovations for train operators I’m looking for an abstraction hierarchy representation of the train operator system. Are there good examples out there? For example capturing goals such as punctuality, driving comfort, and safety in relation to ATO and ERTMS.
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G'day Ellemieke,
I came across a master thesis which was part of a joint project between General Electric & MIT ( Massachusetts Institute of Technology), 2016 & titled: Task modeling and assessment for human-system interaction in freight rail operations., I am attaching the file for your information, the thesis is also available by request via Researchgate, I am including all the information obtained to tackle your research topic, hope this helps & all the best, cheers.
Kind regards,
Sofiane
1. Researchgate:
2. Downloaded original version:
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I need code of Consensus + Innovations and OCD in any programming language preferably Matlab or R
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Aamir Nawaz, Can you provide code for Consensus + Innovations and Optimality Conditions Decomposition?
I would appreciate it if you help me.
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Dear Colleagues: I am always a little surprised if sustainability is only analyzed to the extent of one or two levels of organization. Sustainability actually extends to all embedded hierarchy levels. The economy also extends to ever higher levels of hierarchy on Earth. These levels can be seen, reviewed, and taken into account. But the operation of embedded, deeper hierarchy levels is rarely considered or underestimated. (Between the deep levels of the structural hierarchy, in some ways, the food chains make the connection.) The depths of the structural hierarchy are the great stages of evolution (the evolutionary history of matter). Considering this depth, evolutionary processes also come into the horizon of sustainability. This, in turn, highlights the broad implications of sustainability, beyond the current global economic and ecological scale.
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Thanks. In your answer, the term evolution refers to sustainability. But in the question, I wanted to ask how the levels of biological organization that are represented in the sustainability of wildlife are taken into account in the models. If we start from the structural relations of the living world, we can see that the actors of the living world have internal hierarchical levels (levels of organization). If, for example, the existence of an algae mass is endangered, we will suffer disadvantages that will extend to the entire biosphere. A cosmic catastrophe has caused a huge change primarily in the large-bodied fauna. Chemicalization of homogeneous crops also enters the food chains of other hierarchical levels. At all, food chains are almost constantly rearranged in response to new environmental pressures. What are the evolutionary consequences of living things for the pursuit of sustainability when the living world, the biosphere, is a self-sustaining system in other respects? Do we know the self-sustaining system of the biosphere so much that we are sure we are not going to waste it on our system of social sustainability? On the other hand, do we know the multi-hierarchy-level biosphere enough to model it “small”? Biosphere I and II. experiments seem to have not shown this.
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What are the main influencing factors for active frontages in high-density cities?
We know that urban design qualities of designing active frontages can be the following:
Physical Features
comfort and convenience,
safety and security,
accessibility and communications etc.
Aesthetic Features
order and unity,
colour,
texture and materials,
spatial hierarchy and sequence,
human scale and enclosure etc.
Can we add more features? Please suggest.
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There can be scope for an 'Escape route' as an alternate and safe route to exit from the area in case of emergency situation.
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Most MCDM problems use subjective weights mainly obtained from AHP.
These weights are developed by preferences, qualified using a dubious table (as is the opinion of many researchers), and criticized since decades ago.
They are also obtained under the aggravating circumstance that the DM works only with criteria without considering the different projects, WHICH THEY MUST EVALUATE, according to AHP hierarchy.
That is, in comparing, say environment and disposable income, the DM decides, by intuition, that the first is more important than the second, and assigns a numerical value to that preference, using values of the above-mentioned table.
Then, this assumed weight, for it is not a weight, but a trade-off value, is used to select alternatives. On what grounds? None given.
Consequently, the DM decides that said preference is valid for everything in life, since he does not have any reference, other that a single objective, where this preference will be used.
Not too much thinking is needed to conclude that this process is invalid, because that preference may apply well to a certain project but not in others, or even in comparing alternatives within a scenario.
Now, the DM, using mathematical methods (The Eigen Value method, or the Geometrical Mean), determines priorities for each criterion - after his estimates are subject to the verdict of a formula - because the method demands that his estimates MUST fulfill, with a 10 % of tolerance, that they are consistent, or that meet transitivity.
That is that if criterion A = 3 times more important than criterion B, or 3B, and B =2C, then A=6C.
Now, one wonders why his estimates must be transitive?
Nobody knows, but what is worse, is that the AHP method assumes that said transitivity MUST also be satisfied by the real-world problem, not considering that in general, the world is intransitive.
And now the question:
On what ground, on what theory, on what relationship is it assumed that those preferences from a DM or from a group of DMs, are valid for the real world?
As a matter of fact, a very well-known theorem, the ‘Arrow’s Impossibility Theorem’, says the opposite.
I have posted several times this question. Is there anybody that can give a RATIONAL answer?
Your response and discussion will be greatly appreciated.
Thank you
Nolberto Munier
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Hello Dear Professor @Nolberto Munier
I will meet you after a long time with a challenging discussion!
Contrary to previous discussions in late 2020, I feel that your critical theory is significant and close to reality!
I love AHP and especially ANP, especially the fuzzy version of them!
But the fact is that you are right, these methods have a logical flaw!
A kind of imposition and transmission of opinion!
Good luck
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The issue of success and what is behind it as the very definition of is something that has been debated since the advent of man. If we approach the subject from a monetary view most scholars probably agree that the best predictors of success if we think in terms of hierarchies, whether it is a dominance or competence hierarchy , depending on which perspective you adopt is general cognitive ability and conscientiousness. Something I noted is that most researchers, especially psychologists underestimate the sociocultural aspects.
My question is that if you were to create a model, predicting success, which factors would you include? Can gender be a predictor? Race? Can we also approach the subject from a social constructionist standpoint? Perhaps biology? Would you look at the individual as an idiosyncratic being or would you expand your scope also to encompass culture and institutions?
What are your thoughts?
Best wishes Henrik
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Vadim S. Gorshkov
I fully agree and to rephrase the question to encompass Russia is perfectly fine. So you think the issue of which structure we are born into matters more than the individual him or her self? Do you believe our reality is socially constructed? Interesting. You touched on the issue of strata and stratification, Perhaps being born into the right family can compensate for the lack of cognitive ability and conscientiousness .
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I have gotten the average grades of 25 students (They are both Anonymous). These 25 are my alternatives. Criteria from C1............CN are subjects and extracurricular activities. If in one Criteria, there is a range of grades from 100%-60%, how can I do a pairwise comparison of the alternatives in respect of my criteria. I dont know how to give a ranking of 1-9. If ever I suggest I get papers.
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very interested
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Dear all,
I am interested in measuring how managers may consider themselves as "legitimate" towards:
- their team members
- their hierarchy
- or even their professional network (their peers).
Do you know any measurement scale (psychometric measurement scale) for this?
Thank you
Salomée
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Hi David, thank you for your answer. Actually I am interested in management fashion theory, reason why I study the link between legitimacy perception and practices adoption. I wanted to look at this question from an individual perspective but I will switch to organizational since measurement scales of organizational legitimacy exist :)
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We are looking for studies which show the influence of the decision making process in an organisation (distinct hierarchy vs. multilevel decision making) on its ability and readiness to decide for sustainable solutions.
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Decision-driven organizations treat decision making as a stream of inquiry, not an event. Wherever possible, they encourage parties to play roles rife with dissent and debate. They also match decision-making styles to appropriate techniques.
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I would like to know a hierarchy of the five largest scientific journal articles bases, for example.
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Thank yoy, Pietro Bongini
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Gray Wolf Technique is based on hierarchy and classification. How can it be used to detect the absence and presence of Glaucoma?
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Jerith, G.G., Kumar, P.N. Recognition of Glaucoma by means of Gray Wolf Optimized Neural Network. Multimed Tools Appl 79, 10341–10361 (2020). https://doi.org/10.1007/s11042-019-7224-1
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Suppose we have to measure how different hierarchy level affect the employee satisfaction. Eg: top, middle & lower
If I have 5 questions regarding employee satisfaction and I want to compare all of them together, which test do you think is most relevant. Do I use regression?
Age: independent variable
Vs
Q1: dependent variable
Q2: dependent variable
Q3: dependent variable
Q4: dependent variable
Q5: dependent variable
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Please read my dissertation available at RG to understand the practical application of one on one and multiple regression analysis. Additionally you shall also be able to understand how to address such cases using qualitative approach as well. The PPT presentation is also available on the dissertation of final defense which shall consume your minimum time.
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Respected RG members,
Systematic reviews and meta-analyses rank first on the hierarchy of evidence; however, does this imply that they are more favorable than original research and that we, as researchers, should focus more on conducting them?
Your participation is appreciated!
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Referring back to the EBM triangle, although systematic reviews and meta-analyses are on top of the triangle, they may not necessarily be always better than original (primary) researches (i.e. RCT, cohort, case-control).
For example, the evidence level of systematic reviews of cohort studies are below than RCT, and the evidence level of systematic reviews of case-control studies are below than cohort studies, and so on.
I agree with David Dunaetz and Rami Alkhudary . The need for reviews increases as the number of original researches increases, and the need for original studies with higher quality evidence increases as the number of original researches and reviews with lower quality of evidence increases. When the number of published reviews are high, it is also plausible to perform a review of reviews in some cases.
I hope that helps
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Hello all,
I am currently looking for someone adept in Gender Studies to assist me with a body of research with the hope of publication on comparing LGB couples Gender Roles to Heterosexual couple traditional Gender Roles. My current research shows that LGB couples fair slightly better than Heterosexual couples because of the egalitarian roles as opposed to the slightly more patriarchal hierarchy in traditional heterosexual couples.
This research will be heavy on LGBT research and Theology to support equality in the marital hierarchy. I will be submitting this article to a Christian Scholarly Journal on Biblical Equality.
I currently live in Japan, so by the off chance someone is in Japan, that is preferred.
Thank you!
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Hello Chris,
I am interested in you research but I am having a little trouble pinning down your argument. I have a counseling degree but would hardly consider myself an expert on LGB gender roles, but willing to share an opinion.
You mentioned that your research shows that LGB fair slightly better, but fail to define what they are slightly better at exactly. Anyhow, if you offer up some parameters for an argument I can certainly offer a perspective.
Have a good one,
Lucas
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Is it possible that the Maslow hierarchy of needs has changed as a result of the COVID-19 outbreak?
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Arman Haji Ahmad Cigu, Regardless of the new pandemic, due to the population cluster, the economic power of a nation and the policy of the government, the entire need hypothesis has been battered. However, the basic needs and psychological needs of middle class people have shifted vastly in comparison with the lower and higher-income groups. Thus, we can rewrite the model of needs.
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I have a multi-class problem. I want to solve this problem using the LCPN (Local Classifier per Parent Node) method of heirachical classification. Therefore, I have manually divided the original dataset into a hierarchy of 2 levels. Level 1 has, 4 parent classes & each of the parent classes have child classes.
I built a model for level 1 classification (for predicting the parent class). Based on the predictions of level 1, now I want to send the instances that were classified as class 1, to a second classifier that distinguishes between the child labels of class 1. Likewise, I want to repeat this process for the other parent classes as well. I’m mainly doing this to avoid, inconsistency problem associated with LCPN.
This is what I have mainly done so far.
X = data_frame.drop([‘region’], axis = 1) # Features y = data_frame[‘region’] # Labels X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.3, random_state=42) sm = SMOTE() X_resampled, y_resampled = sm.fit_sample(X_train, y_train) model = DecisionTreeClassifier().fit(X_resampled, y_resampled)
predictions = model.predict(X_test) print(classification_report_imbalanced(y_test, predictions))
I’m bit struggling finding a way how to proceed further with the second level of classification, based on the predictions of level 1. Can anyone suggest me a good way to do this.
Thanks in advance
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Let's assume you study 3 factors using a full factorial design (8 experiments). As a result you get that Factors A, B and the interaction ABC are significant. What is the best way to reduce the model? 1- Keeping all factors in it (no reduction at all) 2- Keeping only the significant factors and interactions 3- Maintaining the hierarchy 3a- Keeping the factors that are included in any significant interaction: in this case it means the reduced model should have A, B, C, and ABC. Including C even though it is not significant, because the interaction ABC is there. 3b- extending the hierarchy to all "daughter" interactions also: meaning that additionally we would include AB, BC and AC in the model even if they are not significant because ABC is there (The outcome of 3b, in this example, is similar to point 1 resulting in no reduction at all, but it doesn't have to be the case when more factors are used).
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@Norge
Do you mean we should also consider the coefficients? what do you mean by "weighting"?
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To know what cultural aspects have an impact on the FM, whether on working procedure, customer satisfaction, company hierarchy etc.
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Alexander, K. (2013). Facilities management: theory and practice. Routledge.
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According to Global Biodiversity Information Facility (GBIF), the following nine major groups: Animalia, Archaea, Bacteria, Chromista, Fungi, Plantae, Protozoa, Viruses and Incertae Sedis are alphabetically arranged. What is the correct order (not the alphabetical order) of the phylogeny and evolutionary hierarchy of such major groups?
Best wishes and regards.
Furhan T. Mhaisen
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Dear Dr. Olsson:
Thank you for your explanation. It seems that there is no way for a correct order for the given groups and hence the alphabetical order of listing may solve the situation.
Best wishes and regards.
Furhan T. Mhaisen
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My research these days is focused in agressive behaviour and hostility at work, and i would like to read more about how informal hierarchies are build through dynamic interaction of the people involved. What i am wondering right now is if some kind of personalities enjoy this hierarchical competition or how personality traits can predict behavior in this kind of enviroment.
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My guess is that people low on agreebaleness and with highly expressed pathological extroversion would be more competitive and hostile, but explore the Big Five personality model reaserch . I would expect neurotics that are usually empathic to be opposite. I hope that thought helps.cheers
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When researchers draw conclusions about something on the basis of regression analyses, in general, how strong might their conclusions be and how likely might they be affected by bias?
For example, in relation to a standard hierarchy of evidence, such as this one here
my feeling is that regressions sit around the middle of the pyramid by cross-sectional studies.
Does anyone have any opinions?
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Hi Andrew,
I believe it is the study design which really matter most when you want to quantify the level of evidence rather than the analysis method used. A conclusion drawn from meta-analysis results sits at the top of evidence hierarchy.
Also the main causes of bias are others rather than the analysis methods used.
The most common statistical bias are:
  1. Selection bias
  2. Self-selection bias
  3. Recall bias
  4. Observer bias
  5. Survivorship bias
  6. Omitted variable bias
  7. Cause-effect bias
  8. Funding bias
  9. Cognitive bias
Therefore, to judge the merit of scientific research evidence presented, I would better look at the study design used, Sample Size, possible effect of any of the above mentioned biases and appropriateness of the statistical method used.
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I am looking for information on Victorian attitudes toward the Church of England around 1860. I am conducting research on Anthony Trollope's Framley Parsonage. I am interested in anything that would reveal Victorian attitudes of content or desire to reform in regard to the Church of England and the hierarchies within.
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Rebecca, you may want to look at biographies of John and Charles Wesley who were English cleric, theologian and evangelists who were leaders of a revival movement within the Church of England known as Methodism. The Wesley brothers embraced Arminian doctrines. Moving across Great Britian and Ireland, they helped form and organize small Christian groups that developed intensive and personal accountability, discipleship and religious instruction; most importantly, he appointed itinerants, unordained evangelists to care for these groups of people. Under Wesley's direction, Methodists became leaders in many social issues of the day, including prison reform and the abolition of slavery. George Whitfield was an English Anglican cleric and evangelist who was also involved in England at this time in the Methodist movement.
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Students raised concern that Maslow's research reflects a singular cultural perspective and would like a multicultural perspective.
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Regardless of singular or multicultural perspective I think Maslow's pyramid states with basic needs and carries on until the highest wants of a normal being. Moreover, Maslow's theory is not scientifically proved but it's his own theory which turns out to be famous and referred academically all over the world.
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When representing concepts, ordered in a hierarchical representation, there are concepts representing sets of instances or, of other classes; others are individuals in the given hierarchy. The problem is, when the given concept is a class or an instance. I think, that an indicator can be considering the level of analyzing: if the concept represent a minimal unite of analyzing, it is an instance; in other cases, they are classes: what do you think?
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Would the empty set or the 'impossible' concept be a counter example?
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Hello,
Did you find any criticism of Maslow's Need Hierarchy Theory?
What are the criticism of Maslow's Need Hierarchy Theory?
thanks
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When dealing with isolated conditions or common condition with rare presentation, case reports are practically helpful than any other studies.individual case reports will lead us to precision medicine.
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Yes, Monika Pathania I agree, if the case report covers a relatively rare condition / rare presentation. It may be possible to find other cases also reported singly; this then enables the reader to compare / contrast. But if the case reports were not published, this could not take place. In this way, the scientific community are enabling a larger picture to be shown.
This is relevant:
These are papers by ResearchGate members around this topic:
Nakamura, T., Igarashi, H., Ito, T., & Jensen, R. T. (2014). Important of case-reports/series, in rare diseases: using neuroendocrine tumors as an example. World Journal of Clinical Cases: WJCC, 2(11), 608.
Gagne, J. J., Thompson, L., O’Keefe, K., & Kesselheim, A. S. (2014). Innovative research methods for studying treatments for rare diseases: methodological review. Bmj, 349, g6802.
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My study is on electric vehicles and I want to test whether factors such as cost and range anxiety have significant effects and their degree of influence when analysing the intent to adopt.
I am first asking questions on age/gender/current engine and then using a likert scale for the factors. My final question is on how likely they are to adopt in % based on their final feeling of 'intent'.
Which regression model should I be using? Thanks.
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I agree - Multiple linear hierarchical regression sounds like a good step forward - ensure all assumptions are met :)
Good luck with your work!
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Hello all,
I'm struggling to find appropriate analyses as my data is violating assumptions left, right and centre. I had planned to do a multiple hierarchial regression, however I don't meet the assumptions as I have one independent variable, two dependant variables, and one factor I'd like to control for. Can anyone offer any assistance or ideas? Thanks!
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Control for usually means adding a covariate to the model. D. Booth
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Hello,
In my project, the criterion has two subscales (which are really important to me), can I have two subscales for the dependent variable while using hierarchial regression in SPSS?
Thanks in advance :)
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Hello Sara,
Strictly speaking, least squares regression (whether simultaneous or hierarchical) only involves one dependent variable (DV) at a time. If you really want to include two DVs, perhaps you could think about using canonical correlation, which can evaluate optimal combinations of one set of variables to maximally correlate with another set of variables. Here's a good resource for some of the basics about CC:
Sherry, A., & Henson, R. K. (2005). Conducting and interpreting canonical correlation analysis in personality research: A user-friendly primer. Journal of Personality Assessment, 84, 37-48. doi:10.1207/s15327752jpa8401_09
The other choice is structural equation models, which allow you to propose and evaluate simple or highly complex sets of relationships among variables (both directly measured and inferred, latent variables/factors).
The best choice likely depends on the specific research question(s) you're trying to answer.
Good luck with your work!
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i am working on hierarchical decision making problem. factor's at each level of hierarchy are not completely independent, some of them are independent and some are dependent on other factors (more than one ) so there is a degree of dependence between factors at each level.
please suggest methods and tools to evaluate this inter-dependence.
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Dear Mr Gani,
In case you are working with subjective decision models as mentioned by Mr Greg Oslen, you may try methods like DEMATEL or ISM for mapping the inter-relationships between the factors. In fact, ISM provides two scores to each factor namely driving and dependence powers with respect to other factors considered in the model. Furthermore, through a MICMAC analysis, you may also cluster the factors into four classes according to their relative importance.
The following journal articles can be referred for additional information.
Sushil (2012) ‘Interpreting the interpretive Structural Model’, Global Journal of Flexible Systems Management, Vol. 13, No. 2, pp. 87-106.
Thakur, V. and Anbanandam, R. (2016), ‘Healthcare waste management: an interpretive structural modeling approach’, International Journal of Healthcare Quality Assurance, Vol. 29 No. 5, pp. 559-581.
Kumar, A. and Dixit, G. (2018), ‘An analysis of barriers affecting the implementation of e-waste management practices in India: A novel ISM-DEMATEL approach’, Sustainable Production and Consumption, Vol. 14 No. 1, pp. 36-52.
Vishnu, C. R., Sridharan, R., & Kumar, P. R. (2019). Supply chain risk inter-relationships and mitigation in Indian scenario: an ISM-AHP integrated approach. International Journal of Logistics Systems and Management, 32(3-4), 548-578.
Hope the information helps.
-Vishnu
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If anybody could point me towards a paper that discusses why this theory is widely accepted, that would be much appreciated.
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One reason could be the ease at which individuals relate to it. The following article provides a great understanding of Maslow's theory.
Regards,
Who Built Maslow’s Pyramid? A History of the Creation of Management Studies’ Most Famous Symbol and Its Implications for Management Education
Todd Bridgman; Stephen Cummings and John Ballard
Academy of Management Learning & EducationVolume 18, Issue 101 Mar 2019
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What are the professional hierarchies within the health sector and child protection, relating to social workers.
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This is probably related to the system set up and the regional regulations.
In our hospital's child protection team, the team leader is a consultant pediatrician who reports directly to the CEO.
The team corrdinator is the social worker who belongs to the Social Services, and sync our efforts.
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In order to assess the risk of confined space working area, we need to identify all the hazard first. After we identify the hazard, we can determine the risk assessment by risk matrix. In order to reduce the risk matrix, we should determine the risk control by hierarchy control (qualitative). So, the question is, how we could obtain the value of each control quantitatively ? so we can reduce the previous risk assessment.
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A rule of thumb is that hazards evaluated between 20-25 (Likelihood * Impacts, scale 1-5) are ranked first fro treatment, even stop the work till to mitigate or eliminate them. After that, hazards evaluated between 15-20 must also be treated and so on. Nevertheless, bear in mind that hazards which might directly threat employess' lives are of first priority to treat them, even though its evaluation are not lying between the aforementioned limits.
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We are running a project in which we would like to determine the dominance structure of our male giraffes. Currently we have 10 adult males in a population of 39 giraffes. They all live on a small fenced reserve and because of that, we observe many interactions between males. We record fighting/sparring events, but these are not always useful to determine dominance. We also record relative size between males. Is there a reliable method to determine the dominance hierarchy between male giraffes or large ungulates in general?
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Although not related to ungulates, I carried out work on dominance hierarchies in social insects. It was published in Animal Behaviour in 2010, and I think you may find it interesting. The work was on comparing three most popular/relevant dominance indices and applying it to real data from wasps, and on artificial data sets. Read it here: http://repository.ias.ac.in/23713/1/335.pdf
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If you have a series of dominance hierarchies from the same group of animals taken over multiple time points, what is the best way to analyse them to see if the rankings have changed? I think the methods I am using are too simplistic/old-fashioned.
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The most logical but complicated way would be to arrange each animal in group in the ascending or descending order of the dominance rank they have received (which would be the dominance hierarchy) using the dominance index you are using, and then comparing this whole dominance hierarchy at relevant time points. I am not sure however, if such an analysis exists. I know of one such endeavour in wasps, but the person experienced the same problem as you. They didn't know how to compare the hierarchy (shuffling of ranks) across time. More thought needs to go in this, and maybe similar statistical tests from other areas could be applied here. Like, for example, how two time lines are compared, or how two lines in survival analyses are compared.
Till that happens, I would suggest to you to focus on:
- individuals of interest (maybe group leaders, or alphas, or any other focal individual that intersts you for a particular reason) and how their ranks change across time: This will be easier to do by either correlational analysis on ranks or of the by dividing your hierarchy into percentiles and then comparing the percentile of the rank. You can also think of normalising the dominance rank by colony size, so that the rank is then comparable across groups.
- a variable that describes the dominance hierarchy: linearity of hierarchy is one aspect, tied ranks is another aspect (ties in ranks are less favourable coz that means the index is not able to differentiate between the animals based on the provided data), etc. You can think of more such variables based on the species on which you are working. Once you have figured out these variables that describe hierarchy on a particular day, you can then compare these numbers on different days and see if .
de Vries has carried out a lot of work on this, and his papers might be a good place to get ideas on what could be other variables of interest.
Our group has also written a paper in Animal Behaviour. Although it doesn't specifically deal with the problem you mentioned, you may like to read it: http://repository.ias.ac.in/23713/1/335.pdf
Hope this helps.
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UPD (29/08/2018): Is the RANS/LES way of turbulence modeling a converging process, i.e. will it hypothetically converge to a hypothetical big but single PDE system? Or will it inevitably disassemble into several non-overlapping PDE systems/approaches each of which is valid only for a certain turbulent regime? 
After more than 5 decades of active search, it seems that the hierarchy of moment equations for the Reynolds stress and higher moments derived from the Navier-Stokes equations does not have a universal closure that could be applied to more or less wide range of flows. Numerous closures have been proposed since then. All of them contain heuristic arguments which are usually changed from case to case. So, does it mean that our understanding of turbulence will never be complete? Or do people still believe that a “magic closure” exists which can explain everything?
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Hi Filippo -- yes indeed, we have had many interesting conversations and agree on many (though not all) things. I look forward to future exchanges.
I do not think I fully understand Ilya's original question yet; what is meant by "complete" and what is the difference between a mathematical description and a physical description? I would remind that a description implies not only the equations, but the necessary initial and boundary conditions. So I would like to interject a bit of philosophy here.
First, I echo Yuli's point about the importance of measurement. From the point of view of physics, measurement is the only source of truth about reality. The mathematician is less concerned with reality and more about logical consistency. See for example Poincare's essay on "Science and Hypothesis." A famous quote of Bohr is "the business of physics is not to understand nature, but to understand what can be measured about nature."
Second, as to why so many scientists and engineers believe in NS, the answer is simple -- it is useful. I believe the word "wrong" is very dangerous. Sometimes, when I express my admiration for Newton, colleagues respond that Einstein proved Newton was wrong. Not at all, Einstein proved that Newton was mostly right. Isaac Asimov wrote a beautiful essay on this, "The Relativity of Wrong." You can find it on the web.
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i have to create questions for four culture types (Clan, Adhocracy, Market & Hierarchy) to interview from participants, then i will develop questionnaire for my survey.
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Thankyou klagge.
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Why are waiting rooms in some hospitals bright and cheery and well-furnished whereas waiting areas in psychiatric hospitals are gloomy with uncomfortable seats? Is there a hierarchy of patients?
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The prestige of one disease over another appears to be determined by the location of the affected body part, the perceived efficacity of its treatment, and the social attributes of the patient who suffers from that disease.
Norredam M, Album D. Prestige and its significance for medical specialties and diseases. Scandinavian Journal of Public Health. 2007;35(6):655-61.
Glazer GM, Ruiz-Wibbelsmann JA. Decades of perceived mediocrity: prestige and radiology. Radiology. 2011;260(2):311-6.
Johannessen LE. The narrative (re) production of prestige: How neurosurgeons teach medical students to valorise diseases. Social Science & Medicine. 2014;120:85-91.
Grue J, Johannessen LE, Rasmussen EF. Prestige rankings of chronic diseases and disabilities. A survey among professionals in the disability field. Social Science & Medicine. 2015;124:180-6.
Lepièce B, Reynaert C, van Meerbeeck P, Dory V. Social dominance theory and medical specialty choice. Advances in Health Sciences Education. 2016;21(1):79-92.
Haldar M, Engebretsen E, Album D. Legitimating the illegitimate: How doctors manage their knowledge of the prestige of diseases. Health, 2016 20(6):559-77
Guntern S, Korpershoek H, Werf GV. Prestige added to Holland’s vocational interest scales for the prediction of medical students’ aspired work environments. Journal of Career Assessment. 2016;24(2):333-46
Album D, Johannessen LE, Rasmussen EB. Stability and change in disease prestige: A comparative analysis of three surveys spanning a quarter of a century. Social Science & Medicine. 2017;180:45-51.
Hindhede AL, Larsen K. Prestige hierarchies of diseases and specialities in a field perspective. Social Theory & Health. 2018:1-8.
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Based on the popular conclusion that collapse of a false vacuum destabilizes matter, the creation of false vacuums in higher energy scales might be expected to increase the stability of matter.
In other threads I have been exploring the possibility that extreme kinetic field energy of a fast moving vehicle modifies the quantum state of local space, boosting it to a higher scale of false vacuum.
In this context the normal scale represents a ZPE oscillator with spin angular momentum of h. This h is constant of Planck and extends over the complete range where General Relativity gives accurate predictions.
Higher scales 2*h, 3*h, 4*h, 5*h are the possible modifications of space in the most extreme cases where Quantum Mechanics can not be ignored. These are called the Hierarchy of Plancks and represent the spin angular momentum of ZPE oscillators in quantum states of higher energy. None of these states have constant h. The states also represent false vacuums of higher scales in Scale Relativity and Squeezed Quantum States. Another way to view the same properties is found in the folding of space into layers described by TGD theory, an essential character of space to make worm holes possible.
Matti Pitkänen might explain the physics differently than my engineering representation. We have never agreed on how to compare his work and mine. He provided missing pieces of technology that allowed completion of my engineering project last year. So I have become involved with TGD in unexpected ways.
In other threads the effects of extreme speed on machines and people were explored.
Ulla Mattfolk has collaborated with me on the micro physical foundation of biology and possible changes that might occur in higher scales of false vacuums at extreme high speed. Greater stability is suggesting that activation energies increase with scale and reactions chemical and biological slow down affecting response times. Together we developed an argument in support of free will some years ago.
In the present question the stability of isotopes is being considered.
If isotopes of uranium, thorium, and plutonium become progressively more stable as the local false vacuum increases from lower scales to higher scales, then a different operating point on control rods would be expected for each quantum state.
Will Nuclear Power Reactors Operate At Different Control Points In Deep Space At High Speed?
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A clue is found in the squeezed quantum states of lasers like the ones used in LIGO facilities, where the uncertainty principle is affected, lowering the uncertainty of energy, momentum, time, and distance.
Uncertainty is a factor in decay modes and half times of unstable particles, suggesting again that smaller uncertainty provides greater stability.
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" I divide my officers into four groups. There are clever, diligent, stupid, and lazy officers. Usually two characteristics are combined. Some are clever and diligent -- their place is the General Staff. The next lot are stupid and lazy -- they make up 90 percent of every army and are suited to routine duties. Anyone who is both clever and lazy is qualified for the highest leadership duties, because he possesses the intellectual clarity and the composure necessary for difficult decisions. One must beware of anyone who is stupid and diligent -- he must not be entrusted with any responsibility because he will always cause only mischief. "
- Kurt von Hammerstein-Equord
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While we would always like to have the best, the brightest, the more loyal, most committed and most ethical in leadership positions, unfortunately it does not always happen. What I have looked for in selecting junior leaders have been bright and dedicated, who were willing to learn and had the personality to fit within the segment of the organization to which they had been assigned. I looked for consistency, not necessarily moments of brilliance and the willingness to push themselves while ensuring they never thought themselves to be a team of one. Individuals who had the courage to empower those around them and lead while truly displaying a concern for those within the organization. So brilliant but lazy, no. Consistent, promising and willing to learn that displayed leadership ability that could be enhanced with guidance and direction, absolutely
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Are there techniques to automatically assign weights on weighted graphs or weights on links in concept hierarchy? Assuming the scenario depicted here : https://cs.stackexchange.com/questions/90751/weight-assignment-in-graph-theory
is a form of a weighted graph. Are there ways weights can be assigned to each edges?
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Hi Jesujoba,
AFAIK, this should be accomplished based on previous knowledge (a.k.a background) such as ranking the content using certain aspect; otherwise, there is no meaning or logic behind such process.
HTH.
Samer Sarsam, PhD.
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Almost all universities have an academic rank system. As you already knew, in the United States a tenure-track position starts with assistant professor. An assistant professor has a chance to be promoted to an associated, and then a full professor. Someone said that academic ranks in Europe are different, and a tenure track position starts with a full-time lecturer, and that assistant professor in the US and a full-time lecturer in Europe are equivalent.
Quite often promotion to a higher rank is associated with salary raise. Also, one's promotion may provide a sense of achievement for him or herself. Other than these, what is the meaning of academic rank to you? Does a professor with a higher academic rank have a higher authority than his or her lower counterpart? In other words, does the rank show the hierarchy of authority? Or does it simply mean that the high rank professor deserves a better respect?
Additionally, do you think that universities need to create more OR less academic ranks than the current common ranks? And on what grounds do you think that way?
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I think the hierarchy of academic ranks is justified insofar as it is adequately symbolizes the research achievements and the overall trajectory of scholars. Nevertheless, as with other major structural reforms unfolding across university life, faculty staff ranking has also undergone significant amendments. For example, it is now ever more relevant for academic promotions to have a competitive and nearly impeccable record of student teaching evaluations. Whilst teaching has certainly has been a major aspect of academic life historically, the current system of student evaluations potentially undermines the process of academic promotion. Students evaluations of teachers are an inadequate tool to validate teachinh performance. Take the case of cognitive biases and methodological problems.
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Is the listing of hierarchy of Universities and other higher institutions of learning helpful? When these list are published, are they helpful? If yes, how?
Thanks in advance for your response.
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Yes of course, the universities across the world are ranked and evaluated based on teaching, research, international outlook, reputation and more. These data are a vital resource for students, helping them choose where to study.
Regards
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Is a psychological theory presented by the world Abraham Maslow in his paper "Theory of Human Motivation" in 1943 in the journal Psychological Review Scientific. Maslow then expanded his idea to include his observations on innate human curiosity. His theory follows the branch of developmental psychology which studies the development and growth of man during the various stages of his life
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In my earlier reading of some sources in the field of administrative and engineering sciences, I have the following conclusion: Maslow explains all human needs (almost) hierarchically, and in order to rise from a certain level of need to a higher level you must first meet that requirement in full. When it meets its basic needs, it seeks to achieve higher needs as arranged by the pyramid. As we rise to the top of the pyramid, the needs become more and more sophisticated. .
The Maslow pyramid is divided into five levels (physiological needs, security and safety needs, social needs, need for appreciation and respect, the top of the pyramid Maslow assumed that the highest needs are the individual's need to achieve himself)