Science topic

Textbooks - Science topic

Textbooks are books intended for use in the study of specific subjects, containing systematic presentation of the principles and essential knowledge of the subjects.
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Is there a classic textbook on Belief Propagation
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At the moment I do not any book or booklet concer Belief Propagation.
For me you question is not clear.... you refers at what?
Should be more easy if you explain quite in good coditions.
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Unlike journals that ensured ideas that are not author's own are duly cited and referenced, and also, author's ideas/observations could be backed up by citing other peoples work and referencing them in journals. Which is more like a validation of research findings, if it agrees with previous discoveries, in my opinion.
With these observations which one would you recommend for reading to accumulate scientific knowledge, Textbook/Journal?
Do you think a textbook is reliable enough to be recommended if you have not gone through all the pages and agree with all that is written in it, especially for young or upcoming researchers that may not know whether what is written is wrong or right?
Do you think that there should be a change in this precedence regarding textbooks in the nearest future? Thanks.
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I agree with your opinions about textbooks. They SHOULD reference where they got their information from or the students should realise that this is all opinion.
As I got older, I thought everything should be proven or evidence-based.
As I got more into teaching (as I got even older ha ha), I realised that undergraduates can only take in things like that (from books) and it is actually hard for them to have enough time to read all the things we want them to read because so many subjects, exams, etc.
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Is the loss coefficient (K), used in the determination of head losses, is independent of size of the piping and the material type?
I have looked in multiple textbooks and online resources but this answer is not clear.
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The answer is NO. K depends on Reynolds number (size, fluid and velocity) and surface roughness (material).
However, for most practical engineering calculations (eg pipe flow) taking K as a constant is adequate.
However, some manufacturers will give K values for different diameter values.
For air flow calculations in ducts, we usually consider these K variations with flow rate and diameter.
google " F34 Duct Design - UFPR"
and see the data given in last few pages.
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Textbooks depict the innate immune response as ending with the onset of the adaptive immune response. Recognizing that the "end" of the innate immune response is not well-defined in my question, what is your molecular hypothesis for the turning off of innate immune pathways during the handoff of responsibility to adaptive immunity?
Details: We know that each of the following molecular mechanisms is capable of inhibiting type I interferon signaling: 1) SOCS1/3 suppression of cytokine signaling, 2) ZBED2 competition for ISREs, 3) phosphatases such as SHP1 that can reverse JAK-mediated phosphorylations, and 4) other mechanisms more recently suggested, such as IL-10 and IL-6 or TGFb.
But what do you see as the likely chain of cause and effect that turns off innate immune signaling at the "appropriate" time?
Comments and questions are welcome.
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James Drummond Yours is a sensible answer. PAMPS turn on innate immunity; elimination of PAMPs turns off innate immunity.
But the textbooks (e.g. Abbas et al., 2022 Fig 1.1) show innate immunity turning off at the moment adaptive immunity turns on. Assuming the adaptive immune system is required to clear all the PAMPs, elimination of PAMPs cannot coincide with the onset of adaptive immunity.
If I understand you correctly, you are thinking that innate immunity will stay on until the combination of innate and adaptive immunity succeeds in eliminating the PAMP-producing threat. Yes?
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I started reading the textbook, Research and Evaluation in Education and Psychology this week. In Chapter 2: Evaluation; Mertens (2020) asserts that evaluation and research share similarities, however the differences between the two types of systematic inquiry are clearly distinguishable. (p. 86) After learning more about research and evaluation I have come to the conclusion that the two practices do not overlap as much as you may think they do.
Research and evaluation have different goals:
  • Research is a system used for knowing or understanding
  • Evaluation is a system used for discovering merit, worth, or quality
Research and evaluation have different processes:
  • Research is made up of 8 main steps; identify world view, establish focus, literature review, identify design, identify data sources, collection methods, analysis and future dirction
  • Evaluation is made up of 3 main steps; focusing the evaluation, planning the evaluation and implementing the evaluation
Research and evaluation use different terminology:
  • The jargon used in research is similar to terminology you might be familiar with from science courses and experiments; variables, control groups, sample, subject
  • The jargon used in evaluation is more similar to terms that you might be familiar with from business or management courses; merit, worth, monitoring, assessment, internal evaluators, stakeholders.
Taking into consideration stark differences between the goals, processes and terminology used in research vs. evaluation, I would argue that these two practices are not intertwined with one another. That is not to say that they can never be used together, rather that they can be used independently and with separate goals in mind.
I would love to hear some different perspectives on research vs. evaluation and how you may be applying them in your own work.
References:
Mertens, D. M. (2020). In Research and Evaluation in Education and Psychology: Integrating diversity with quantitative, qualitative, and mixed methods. 5th ed. SAGE
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I would treat evaluation as a specific kind of research, better known as "Evaluation Research." In particular, I think Evaluation Research is distinguished by its goals and its research questions, rather than anything about its methods.
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Hello.
I want to ask about the method of scale-up for upper flow fixed bed adsorption column.
I will use the scale-up parameters are column diameter, bed height and flow rate.
Is there any reference or textbook of mathematical method?
How to use those parameters for scale-up for upper flow fixed bed adsorption column?
Thank you.
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Andreas Bittner Thanks a lot for your good answer. It is really helpful to me.
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I work in a liberal art based university. I would like to propose a course about energy storage and conversion technologies. However, it is a challenge to find a textbook that could be used to teach this topic to non-science students.
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Dear Dr. Ehab El Sawy,
I suggest the textbook: “Energy: Production, Conversion, Storage, Conservation, and Coupling” by Yaşar Demirel - Springer. You may extract lots of topics for the non-science students. I hope you find it useful.
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I was saddened to receive a message today that Dr Jean Garnier, a dear friend, mentor, and scientific colleague, has passed way. He held the Order of Honors in Agronomy (Mérite Agricole), Officer, Order of Honors in Education (Palmes Académiques), Knight. He has also held a laureate position at the Ministry of Agriculture, USA, and the position of Research Director at the French National Institute for Agricultural Research. He was until quite recently the Editor in Chief of Biophysical Reviews, a journal sponsored by the International Union of Pure and Applied Biophysics of which he has been President. He was a widely respected expert in protein science and a founder of bioinformatics. He wrote many scientific papers, and he was a huge influence on my work and the work of many others. We coauthored a textbook on proteins and protein engineering that was widely used in universities. Under his guidance, our research and early papers together, particularly on the prediction of protein secondary structure and protein modeling, achieved many thousands of citations. The GOR method is still widely used today, and I saw that it played a significant role in the published research of many protein scientists responding to the rise of COVID-19. We kept in touch, and he will be very much missed.
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First of all, my sincere condolences, it is always sad to lose someone dear to you. It sounds like a good initiative to search for a way to honor someone’s scientific work/life. There are I believe, some good examples of ways to honor a great scientist/human being:
-Write a in memoriam like the one for Gerhard Woeginger: in memoriam Gerhard Woeginger
And/or dedicate a special issue on the work/field of the late scientist like:
Kind regards.
PS. I am/was familiar with the GOR method for predicting protein secondary structures from amino acid sequences but never realised that GOR was the abbreviation of Garnier–Osguthorpe–Robson
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What is the best Advanced Macroeconomics textbook for Mater Level students? I am teaching the Advanced Macroeconomics to Master level students. Please suggest the best textbook of the mentioned subject.
Regards
Dr. Syed Irshad Hussain
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S.CHAND PUBLICATION FOR BOTH MACRO AND MICRO ECONOMICS
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What is the best Economic growth textbook for undergraduate Level students? I am teaching the Economic growth to undergraduate level students. Please suggest the best textbook of the mentioned subject.
Regards
Dr. Sayed Irshad Hussain
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Hope that M.L.Jingan book of Economic Development could explain many topics related to micro economics and economic growth and development of the country
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Textbooks about the managerial aspects of Digital Transformation and Industry 4.0 for academic teaching with exercises and case studies.
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Dear All,
Please access the link below for your reference on the 10 Must-Read Digital Transformation Books in 2022.
You can customize your options on this subject.
Good luck to your careers!
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What is the best Advanced Macroeconomics textbook for Mater Level students? I am teaching the Advanced Macroeconomics to Master level students. Please suggest the best textbook of the mentioned subject.
Regards
Dr. Syed Irshad Hussain
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COURSE DESCRIPTION
14.461 is an advanced course in macroeconomics that seeks to bring students to the research frontier. The course is divided into two sections. The first half is taught by Prof. Iván Werning and covers topics such as how to formulate and solve optimal problems. Students will study fiscal and monetary policy, among other issues. The second half, taught by Prof. George-Marios Angeletos, covers recent work on multiple equilibria, global games, and informational fictions.
(Citation from the source).
This might also be of interest to you, dear Sayed Irshad Hussain
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I will be proposing a new course in our MS biomedical sciences program, likely in the areas of toxicology and/or environmental health. If anyone has used graduate-level introductory textbooks in these fields, please let me know which textbooks you have used, and whether you would recommend them.
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I would encourage a good course in Environmental Health as a way to go, if you feel comfortable with the infectious disease aspects. The text 'Essentials of Environmental Health' by Robert Friis is a decent textbook for undergraduates, but using that as background and then assigning readings (research papers, reviews) could work well for a graduate course. A good review article is worthwhile to use in these classes.
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Hello everyone, I'm very new in protein KMC/MD and I would like to make the KMC/MD which is based on Breaking-Forming H-bond.
I would like to breaking H-bond from the amino acid residue which have low RMSF after MD production and calculate again for forming H-bond (and for potential energy).
I would like to know that how to create the RMSF cut-off or if someone have a good explaination textbook or paper about Protein KMC/MD procedure
Thank you for your time
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Test , Good luck
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What is the best textbook for instructors for helping their learners to build social impact/enterprise start-ups? ie including PPT slides and other learning resources?
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An edition of this dictionary in Spanish is planned through the University of Salamanca.
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I am looking at example 1, Chapter V, Sec. 19 of the Dover edition of Wasow’s “Asymptotic Expansions for Ordinary Differential Equations”. This is the latest edition of which I am aware. Although this example is an excellent one for demonstrating shearing transformations and determining an appropriate change of variables, the alleged fundamental system to eqn. (19.30) is clearly erroneous. The following formula is likewise in error although consistent. Is this overlooked in all reviews and revisions? After all, a fundamental series is, by definition, an exact solution and not just a formal series. One may expect addition of lower-order terms in (19.30), but the author explicitly rules this out and claims to have achieved a terminating series. Can any experts shed some light on this oversight/neglect?
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Hi all, I've read from textbooks that a bad initial water head can cause the model to fail to converge. But I want to know the specific reason. can anyone answer me?
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This is a two much general question, so the answer might be not straightforward. The relevance of this statement relates to many factors such as the nature of the simulated process (Groundwater Flow, transport of solute/heat, etc.), the non-linearity of the governing equations, space discretization scheme (FDM or FEM).
Anyway, if we just consider the Groundwater Flow process, bad initial conditions will likely to make the non-linear iteration methods such as the modified Picard and Newton schemes to fail. This is a typical behavior of these itereative methods. There is a huge number of references in the literature discussing their applications in Groundwater Modelling.
In practice, initial conditions are reconstructed from available measurements and/or steady state simulations to avoid these difficulties.
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the chemical equation (in the small picture) is included in a table for the selection of organic reduction Half-Reactions in a textbook.
my question is what does (d) stand for??...since the author makes it equal to 40 in the methanogenesis example (see the large picture)?
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If we imagine 150 cubic meters in time probably d stand for day
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Many educational institutions replaced the textbook with electronic book. Is this a correct move, or still the printed textbook has readers?
what are the advantages and disadvantages of each?
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Congratulations on your publication - apologies for not replying sooner. Have you done more work on the area since your original question/forum?
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I am evaluating a new English textbook. I found out the answers of teachers who are teaching this textbook in the class are very different from the answers of english teaching scholars to the same questions. How we can solve this problem at the time of giving a report to the authors of textbook to revise it?
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Sería muy interesante hacer una categorización de las respuestas de los docentes y del texto, de esa manera tal vez pueda observarse que tan disímiles son y ambas partes trabajar en el acercamiento.
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In most of the textbooks on NMR, we come across the fact that under the 1.4 Tesla external magnetic field, the precession frequency of 1H (proton) is 60 MHz. Can anyone tell why it's always mentioned as 1.4 T instead of 1 T?
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Ganguly
1.4 Tesla is the maximum field strength achievable in a conventional configuration (natural magnet-at the time) which was known in the early stage of NMR development (before the manufacture of superconducting magnets).
Good luck
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Rectifier
RF
Electronics
Energy Harvesting
Rectenna
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When you are talking about a small signal Rf diode , you can find the theory behind in the Pozar book just keep in mind thats the second derivative of the current vs voltage characteristic which makes the small signal rectification effect.And Diode detector work from a few Hz to > 100 Ghz
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I would like to prepare a lecture on "Introduction to Statistics" and am looking for a suitable textbook on which to base the lecture. Any recommendations?
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Hi there, I would like to buy a textbook of PharmacoEpidemiology: which one would recommend and why ?
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Try this one
Brian L. Strom and 2 more
Textbook of Pharmacoepidemiology
3rd Edition
ISBN-13: 978-1119701071, ISBN-10: 1119701074
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I am new to meta analyses. Are there any introductory texts that will take me through the entire process by way of an example/s?
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I am doing research on why should indigenous knowledge represented in Science and technology focusing on South African educational system
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Formulate proper questions for your research. Make them specific to the main point you intend to investigate.
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Learning new techniques and being up to dated with what's happening in dental field became not limited to textbooks or university degree programs nowadays. There are new platforms, methods that became so popular among practitioners. what are these new methods and are they effective and can depend on?
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Keep reading, join lecture course, discuss problem with colleagues.
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Dear esteemed professors
Can anyone suggest latest cognitive psychology textbook?
Just now I received a task of teaching cognitive psychology postgraduate students.
So kindly suggest latest textbook or manuals or any resources.
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We are hunting around for the related information about the following conclusion:
  • The 1890s were a watershed in virology, when Russian microbiologist Dmitri Ivanovski (alternative spelling Dmitrii Iwanowski or Dmitry Iwanowski or Dimitri Ivanovski or Dmitri Iwanovsky or Dmitrij Ivanovskij)(Russian: Дми́трий Ио́сифович Ивано́вский)(1864–1920) isolated the tobacco mosaic virus in 1892 and reported it to the Imperial Academy of Sciences in St. Petersburg1.
Q1: What exactly is the correct spelling?
There are at least 10 different English spellings of his name. In Ref. 2, on p. 755, the editors spelled the Russian scientist’s name as Dimitri Ivanovski2. However, most authors spelled his name as Dmitri Ivanovski in their literature3, whereas many others spelled his name as Dmitri Iwanovsky in English textbooks and documents.
Q2: What is the most accurate description of his identity?
In the same vein, he was described as a scientist/microbiologist/botanist/virologist in different documents. Which one is the best?
Q3: We need the pertinent reference of 1892.
As the Editorial (Ref. 2) remarked, “some notable achievements in microbiology have gone unrewarded by the Nobel committee.” I think, the isolation of the tobacco mosaic virus in 1892 should be a notable achievement in virology. Embarrassingly, the authors barely care about the original reference or document when recounting the ‘trivial story’.
We need help to check the information about the original reference:
  • Von Dm. Iwanowsky. Über die Mosaikkrankheit der Tabakspflanze. Bulletin Scientifique Publié Par l'Académie Impériale des Sciences de Saint-Pétersbourg. 35: 67–70 (1892).
It would be appreciated if anyone could provide the original document.
References:
1. Iwanowsky, D. V. Über die Mosaikkrankheit der Tabakspflanze (Concerning the mosaic disease of the tobacco plant). Bull. l’Académie impériale des Sci. Saint-pétersbg. 35, 67–70 (1892).
2. Editorial. A Nobel endeavour. Nat. Rev. Microbiol. 8, 755–755 (2010).
3. Lechevalier, H. Dmitri Iosifovich Ivanovski (1864-1920). Bacteriol. Rev. 36, 135–145 (1972).
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As for the name, please check the standard transliteration schemes from Russian to English. Not two languages are likely to have all vowels and consonants same, and imprecise transliteration adds up to this problem. At present, when we standardize spelling of our names in both our native language and global language, we need not to conform to these "linguisitically correct" standards- it is we (or our parents) to decide. I do not know whether this Russian TMV separation ever written his name in English, So you are free to adopt any spelling provided you use self-consistent Transliteration scheme.
(for many languages, spelling and pronunciation does not always one-to-one correspond, so you need to make choice- whether keep the spelling intact or pronunciation intact, if conflict occurs. English have this connection lost, thanks to the "Great Vowel Shift")
See GOST, OST or ISO standards specifically, and mention the transliteration/ transcription scheme you are using. Take help from scholar of Russian linguistics, if required.
Let me clarify some specific things regarding this name
  1. Was the vowel between Д and м explicitly pronounced in time of this scientist, or is it pronounced at Present? (e.g. Medvedev, Russia's prime minister, has the same first name). (IMHO, it can be a short vowel). Does the letter "i" do justice for the short vowel,.i.e. a good approximation? it can be answered only by a linguist
  2. Similarly, the digraph ий possibly represents a long vowel. Does that long vowel (or its approximate version) exists in English? Does the similarly long vowel represented with a single i consistently, or double i (ii) seems to be awkward?what about a single 'y', which is classically treated as semi-vowel of English language. Again, this is to the linguist.
  3. Samely, the letter в can be pronounced 'v' (as in Vostok) or 'w' or in between. These two approximant consonants often merge or exist as allophone on a dialect continuum. The same case is for 'w' in Wohler of German, who made urea first by heating ammonium cyanate. even in Hindi, these two are almost allophones (perhaps not so coincidentally, all three are Indo-European Language- look at the proto-IE language to see the nature of approximant)
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Gender representation in numerous school textbooks across diverse societies has been studied and discussed since the 1970s. A substantial number of these studies stated that gender bias in textbooks (GBIT) is quite stubborn and practically a barrier in the way of gender inequality (Ullah & Haque, 2016). In particular, in textbooks of Social Studies, the construction of gender is solely stereotypical (Jabeen, Choudry, Omar, 2014). Hameed (2012) in his study on gendered based English textbooks found that in shaping up ideas of the children and for encouraging optimist gender roles in children, textbooks play a decisive role and can be a valuable tool. Further, Jabeen and Illyas (2012) emphasize that characters in (learning resources (textbooks) play a significant part in children. Characters influence children's choices concerning to what type of being they want to become (Jabeen & Illyas, 2012).
Unterhalter and North (2010) therefore argue that to achieve gender equality through education, the concerns of men and women would be considered as integral parts monitoring, designing, evaluating policies programs in all social, political, and socio-economical domains to provide equal benefit for men and women and to not perpetuate inequality. Emphasizing on efficiency approach of Gender and Development (GAD), Cornwall (2000) also mentioned that men as oppressors and women as a victim of gender inequalities is a simplification of reality. So, there is a need to view gender, not as a unilateral issue of women but it should also be considered in terms of power relations and powerlessness where men and women may be dis-empowered and vulnerable (as cited in Gender analysis framework of Leach, 2003, pp.10-11).
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There is need to relook at the true meaning of gender-neutral laws on sexual harassment which should aim at protecting both men and women against sexual harassment in work settings. An enabling environment for prompt reporting and quick redressal with an unbiased investigation and a well laid out counselling system to ensure safety, as well as emotional and mental support to the victims, are important preventive strategies. These measures may help address the problem of hesitancy &/or other reasons for non-reporting. It is also pertinent to offer the accused a fair opportunity to defend, as there may be instances of false allegations
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Can someone recommend a comprehensive and up to date textbook on molecular docking?
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1. Molecular Docking for Computer-Aided Drug Design
Fundamentals, Techniques, Resources and Applications
2. Molecular Docking and Molecular Dynamics
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Recently I read the textbook "A Pharmacology Primer" (https://www.elsevier.com/books/a-pharmacology-primer/kenakin/978-0-12-813957-8 ) and it was very helpful to me.
The book contains quantitative efficacy modeling. For example, most concentration dependent curve' s shape is sigmoid, of course I knew it but the book explain why sigmoidal shape is drawn and its meaning can apply analysis of drug character.
However, the book cover only small molecules, I want to read more books about antibody drugs.
Can you recommend any textbooks?
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Hi:
this view, "most concentration dependent curve' s shape is sigmoid", is wrong. it comes from old theory of enzyme regulation .
you can see my paper: thermodynamic model for enzyme regulation or my book.
qinyi zhao
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How to analyze the mathematics textbook from the prospective of student‘s use in order to examine how textbooks support students to do mathematics learning?
Is there any theory that could be used for doing such research?or some relevant articles?or give some suggestions?
Thank you very much!
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I have found many scientific papers and edited books on global value chains. But I do not find any book that combines global value chain, buyer-supplier/seller relationships and climate change together. I am looking for a textbook that covers the issues together.
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Dear Elmugheira Mohammed,
Thanks for sharing the link.
Best regards.
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I’ve been asked to revise a chapter in a textbook. The chapter was written by another author. In revision, is it acceptable to retain any of the original author‘s exact work, or does it need to be completely rewritten in original language? I’ve only revised my own chapters before, and no one seems to know how this is properly handled.
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It is revised by adopting a network for evaluation and review that includes ideas, documentation, standards of scientific documentation and referrals, as well as the formalities adopted in the collective book.@
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What is the best Advanced Microeconomics textbook for Mater Level students. I am teaching the Advanced Microeconomics to Master level students. Please suggest the best textbook of the mentioned subject.
Regards
Dr. Syed Irshad Hussain
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1) Hal Varian. Microeconomic Analysis. 3rd Ed. New York, NY: W.W. Norton, 1992.
2) Geoffrey Jehle and Philip Reny, Advanced Microeconomic Theory. 3rd ed. Pearson Education Limited, 2011
3) Felix Munoz-Garcia, Advanced Microeconomic Theory: An Intuitive Approach with Examples, The MIT Press, 2017.
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Unfortunately, this simplistic vision of RF and microwave circuit design often becomes blurred when test results are obtained that differ drastically from the beautiful simulation results. The reasons for this disparity may normally be traced to one of the following:
"The ratio of the transverse dimensions of transmission lines to wave length are nonnegligible thus, additional unwanted energy storage modes become available."
I read this above paragraph in a textbook, and didn't quite understand the sentence given in bold.
As of how does the above condition result in unwanted energy storage modes.
Thank you in advance
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As one example (I think)
Microwave waveguides are usually used in the regime where the widest width of the waveguide is less than a free-space wavelength, and more than a free-space half wavelength. This means that there is only one way, or mode, in which the signal can travel down the guide. If the guide is wider than this it becomes possible for energy to travel down it in multiple modes with different velocities, and, even if only one mode is launched, other modes can be generated at bends and other components.
Even in the usual regime, the signal (group) velocity depends on frequency.
Also, at things like steps in the waveguide walls, modes can be generated even when the guide is less than a wavelength across. In the case of the guide being less than a wavelength across, these do not propagate but store energy similar to inductance or capacitance, and the stored energy may be larger for larger guide sizes.
All of these result in more complicated behaviour than a simple ideal transmission line, and happen because the time taken for the signal to travel between opposite conductors is not minute compared to the time taken for the signal to reverse in the transmission line.
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Every textbook or article on phagocytosis only mention that digested material is expelled out of the macrophage after digestion. But what is the exact contents of this digested material - oligopeptides? Nucleotides? Amino-acids? Small lipids? Where do they go and what signals provide after being released from macrophage? How are they utilised?
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Excreted out of it's body as waste
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Hello, for an article I am looking for maps of the Crimean peninsula (ideally textbooks or atlases) from Russia and Ukraine to compare. Does anyone have appropriate materials or know of suitable contacts (textbook publishers or universities)? Best regards.
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Sorry, I don't have maps of Crimea
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I need a good textbook for teaching postgraduate research methodology. The textbook should have slides etc.
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I found this book to be an excellent basic text for my research methodology course for social science students: Cohen, L., Manion, L. & Morrison, K. (2018) Research methods in education, Routledge. It is available both in hard copy and and as a downloadable e-book making it ideal for e-learning under COVID-19 restrictions.
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I am a student from a relatively developing country and the commercial enzyme is expensive for us. My graduation thesis is desperately in need of an available standard curve for my AchE assay so that I can calculate my results using it. Please is there anyone who currently doing the AchE assay who can share it with me or where can I find it, are there papers or textbooks that I can find it in?
Your help would be very much appreciated.
Thank you
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A standard curve must be prepared under the identical conditions as the assay. It is not likely that one that you did not prepare yourself will be accurate.
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I cannot find in any textbook or site if the myoglobin binds only with oxygen or it can bind with other molecules same as hemoglobin which it can bind to ( O2, CO2, NO, 2,3-BPG),I appreciate any help in this matter, thank you in advance
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I hope this could help.
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I would appreciate if anyone could suggest a syllabus or textbook for i)Guerilla Marketing, ii) VR and AR in Communication
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here is the book on said subject as desired by you
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Hello guy. I'm finding some inorganic chemistry textbooks from basic to advance by English. Can you recommend some books? Thank you very much.
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Thank for this informations
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In several textbooks and research papers, I've come across the phrase "Large sample size" (for example, an estimator is consistant for large sample size). However, what is meant by a large sample size is unclear. I mean, where does a large sample begin? Is there a formula or a criteria for determining that a sample size is large or small, especially in case of infinite population?
data analysis, testing of hypothesis, statistical inference, probability, survey sampling.
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The sample size is an indicator of how we are close or far to reality. There is no formula or criteria for determining whether the sample size is large or small. But, the small sample size may hide many facts of this reality.
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Any recommendations for a good "Research Methods" textbook suitable for Geography undergraduates? Which textbooks do you like? Or any recommendations for open source online research methods textbooks?
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There are a number of excellent references. Take for example:
Cohen, L., Manion, L., and Morrison, K. (2011, 7th edn.). Research Methods in Education (7th edn.), London: Routledge
Connolly, P. (2007). Quantitative Data Analysis in Education: a Critical Introduction Using SPSS, London; New York: Routledge.
Creswell, J. W. (2012). Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative Research (4th edn.), Boston: Pearson.
Creswell, J. W. (2009) Research Design: Qualitative, Quantitative and mixed methods Approach. Los Angeles, Calif; London: Sage
Denscombe, M. (2014). The Good Research Guide: For Small Scare Social Research Projects (5th edn). McGraw-Hill.
Morgan, D. L. & Nica, A. (2020). Iterative Thematic Inquiry: A New Method for Analyzing Qualitative Data. (2020). International Journal of Qualitative Methods, 19, 1-11.
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I'm new on medical science and I learned from my teachers that there are 4 specialized myocardium conducts on the right atrium that make the internodal conduction. I did an fast review on literature and realized that maybe this explanation was wrong and it is a old fashion way to explain the conduction.
So, I turn my question to more specialized scientists on the field, what do you think? There is these 4 conduction pathways or they are only differentiated due to the myocardium tissue which is naturally separated by the veins and anatomic structures of the right atrium?
Thanks all...
(PS. My college textbook is Latarjet & Liard and they didn't define these 4 pathways. I think Moore neither)
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Hi Davison, among the primitive ventricles, is a ring of specialized myocardium that serves as the starting point for the ventricular conduction system. In the course of circling and annotation, the main ring joins forces and bundles to its branches, the retroaortic root branch, and the right atrioventricular ring bundle to create the AV conduction system, the latter two of which are lost during normal development.
That being said, operations affecting the interatrial septum can damage these pathways, resulting in a loss of interatrial rhythm in the heart. You need to also remember that surgical excision of left atrial myxomas at an unusual position, like near the sinus node, can cause injury to the sinus node and the Bachmann's bundle in certain cases. This lead in aberrant impulses originating from nonsinus node sites in the right and left atrium, can also result in arrhythmias such as atrial tachycardia and atrial flutter/fibrillation. You'll need to pay close attention to the location and architecture of cardiac tumors when conducting any surgical procedure in order to prevent damaging these electrical conduction channels while performing any surgical procedure. I would recommend to conduct an ECG to identify conduction delays and monitor for arrhythmias, so you can diagnose necessary measures to follow during and after the recovery period.
Dr. D Mourise
M.D.
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I work on CdTe base solar cell. Need to know the physics and techniques to calculate the open circuit voltage from the photoluminescence spectroscopy. We can also compare the result with Voc calculated from the ERE measurement. A textbook source, journal papers on this will be appreciated. Thanks in advance.
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If you have a semicondcutor material and you want to estimate its possible rendition for open circuit voltage Voc given the photoluminescence spectrum,
then one has to find a relationship between this spectrum of the absorber and the Voc.
The open circuit voltage is related to the energy gap of the material Eg where the highest possible open circuit voltage Voc max= Eg.
However there are losses because the contact difference of potential is made normally smaller than Eg which is required to collect more electrons and holes generated by the photons.
The open circuit voltage will be smaller because the internal losses of the photogenerated electron hole by recombination. One of the important piece of information pointing out to the expected open circuit voltage is the minority carrier lifetime which can be determined from the time resolved photoluminescence.
These two important parameters can be used to for cast the open circuit voltage.
There is a rule of thumb that the Voc at the AM1.5 is about 0.5-0.6 Eg
The lower limit for the smaller lifetime.
There are also the ideal solar cell behavior and its relation to Eg. You can use this relation and your Eg to get the highest possible efficiency of the solar cell and its other parameters by following the work of Shockley–Queisser limit.https://en.wikipedia.org/wiki/Shockley%E2%80%93Queisser_limit
Best wishes
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Hello Everyone,
I found the attached example which is related to the dimensional analysis of convective heat transfer. I want to know in which textbook I can find it. Because I need to study that section of the textbook. Please let me know if anyone encountered this example previously.
NOTE: I do not need the solution.
Thank you in advance.
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Shiron Thalagala Then maybe the solution doesn't exist.
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In section 1.4,The answer of 13th exercise question is not correct.In the question 13(d), the answer is printed as True. But the Domain under consideration is set of all integers.When we apply negative integers 3n > 4n. Example -6 > -8. So the universal quantifier when applied to the domain the set of integers, ithe given proposition will not hold for all integers. Hence the answer must be false.
This Textbook( 8th edition ) has been used by students of most of all universities in this world. So this error must be noticed.Whats your opinion?
See the attachments.
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Books are known to have errata.
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Greetings Colleagues
I would appreciate if you could help me collecting material/syllabus/slides/textbook/others for a new course entitled "Secure Assembly Coding "
Course Description: "This course aims to provide an overview of Assembly Language Fundamentals of Penetration Testing. Assembly language is most used programming languages in reverse engineering. It helps to understand any malware. It is used to analyze the flaw of any malware. Specific topics to be covered in this knowledge unit must at least include computer systems, data representation, numbering systems, instruction execution, symbolic coding, data word definition, laterals, location counter, indexing, indirect addressing, relative addressing, and assembly systems, reverse engineering (it tells complete working process of any application.), malwares and analyze the flaw of any malware".
Thanks in advance
Qasem
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Than you Dr. Len Leonid Mizrah , I hope to find more and more resources as I need to formulate a complete course for cybersecurity students
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Many papers have addressed the problem of well treatment in finite difference analysis (in the petroleum industry). Could you please recommend some articles or relevant textbooks about well treatment in finite element analysis? Many thanks!
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I think these papers could help you;
  1. Coupled finite-element simulation of injection well testing in unconsolidated oil sands reservoir, December 2013,
  2. A finite element method for reservoir simulation, February 1981,
  3. Multiscale Mixed-Finite-Element Modeling of Coupled Wellbore/Near-Well Flow, April 2013,
They're available on the ResearchGate Server for download.
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Suppose I want to teach beginner first- and second-year university students, possibly as a first programming language, or they maybe have some programming background in another language. What Python programming textbooks do you suggest?
Also, what Python programming textbooks do you suggest for teaching advanced topics?
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You are most welcome dear Dr Alia Alkameli .
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I need suggestions on recent textbooks or articles that describes the required panel data methods suitable for N>T and N<T. Especially when N< 20 and T<10.
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Woodridge
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in the recent trends of research, it has been noticed that the usage of AI and ML has been increasing which poses a new area as well as challenges towards adaptation of these programs in environmental engineering applications. Kindly suggest the measures to be taken to adapt for the research work
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Hi Dr Achyuth K N . I hope this book could help you :
“Learning Python”, 4th Ed., ISBN 978-0-596-15806-4, by Mark Lutz
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Dear colleagues,
I am currently writing a paper that examines different definitions or different elements of a concept. In the literature review I got a good overview of the topic, but what I couldn't get from it was a comparison model for definitions.
So, I am looking for a model to compare the definitions [Edit] found in the Literature review. The defintions are verbal and do not have empirical data and are not based on empirical data. Discipline is Businss Administration. [/Edit]. No model to evaluate the concept, I found some. My own search has not yielded any useful results for comparison models.
Please, can you help me by either giving me good search terms, textbooks on comparison methodology or something you think can help me with this point?
Kind regards, Sebastian
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Thanks a lot Sajid Iqbal . From a first reading that paper will help me either directly or help to get my Literature research back on track. You saved my submission deadline. :)
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Teaching radiographic procedures may be problematic, taking into consideration student burdent and learning time. I would like to know how other Radiography Lecturers in other countries overcome the problem in deciding which of those procedures to teach and assess.
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In addition to what others have said, I would say use the outcomes measures set out in the curriculum to address this.
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Based on a resent question; what is the difference between a saprophyte and a saprotroph?
In Greek saprophyte would be saprós (“putrid; decayed; rotten”) and phyte ("plant") thus meaning a plant that will live of dead or decaying organic matter. Saprotroph on the other hand, would be saprós (“putrid; decayed; rotten”) and trophē (“food; nourishment”) and thus include all organism with this lifestyle.
It seems as if the term saprophyte would be incorrect as plants are in actuality not saprophytic. The same problem comes in with saprophytic vs saprotrophic. My concern is this, why were we taught that "saprophytic" or saprotrophic fungi are saprophytes as this would seem to be incorrect. Recent publications and textbooks still refer to saprophytes. Has the term saprophyte been abolished or regardless of the difference we now consider saprophyte and saprotroph as synonyms?
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Just now, both terms saprophyte and saprotrophic are be used in the field of fungi papers. So, both terms refer to fungi which feed and grow on dead things such as: plant debris, organic materials, dung etc.
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I'm currently looking for a good textbook for bioinformatics related to Insilico practices. can anyone suggest a good one. prefer the UK, USA publications. thank you.
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Please see this link, there are good textbooks for bioinformatics listed there
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I too work on the ethics of climate change. Please send me your e-mail, so that I can send you flyers about relevant books. My e-mail is attfieldr@cardiff.ac.uk . I will attach a flyer for my textbook on environmental ethics. Best wishes, Robin Attfield
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Many thanks for letting me know, and for your appreciation. Please consider recommending these to a relevant Library. Best wishes, Robin
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I'm going deeper about the class actions in American law system.
I've started analyzing Rule 23 of Federal Rule of Civil Procedure and then I've tried to deepen the law and economics approach on class action.
Could someone recommend me an article, a review or a textbook that deals with the relationship between class action and instrumental theory of tort law? It would be great also to consult some text concerning the social function of class action and its effects, both economic and social
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Sanks for leatter am liaver in good coffe)
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Hi every one, I am teaching Math for for Engineering field (undergraduate). I have a lot textbooks but need your guide or advice for some books could help me to make lecture note.
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I like Bird's Higher Engineering Mathematics (by John Bird).
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Could anyone recommend a good textbook to study about Green Function in classical electrodynamics? Thank you.
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For the behavior of refractive space-dependent 3D electromagnetic waves using Green Function formalism in continuous media, the subject was addressed in chapter 6 of the monography:
Methods of Quantum Field Theory in Statistical Physics, (1963) by Abrikosov, Gorkov, and Dzyaloshinski. Dover NY.
Best Regards.
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Hydrogen is a clean fuel. Its usage has many benefits. It is easily available. But many students do not know it. textbooks have an important role in this. How can we introduce hydrogen as a clean fuel in textbooks?
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Yes we should teach hydrogen as an energy carrier like we use to teach oil products. I mean petrol, diesel oil, etc.
Emphasize on the production , transport and distribution. Uses should not be overlooked. The impact socioeconomic or environmental should be included.
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From my reading from the textbook, we can determine Schottky's diode built-in potential from the x-axis intercept of 1/C^2 vs V from the linear line of the graph. But how to determine if the graphs show nonlinear behaviour? is it still possible to determine it?
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Dear! What is the cause of getting nonlinear 1/C^2 versus V.
If the doping distribution is known one can fit the C-V curve to get the built in voltage phi.
I will come later to this question
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Any Recommendations on Textbooks for Teaching Research Methods in Information Systems?
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There are textbooks that focus specifically on methods for researching information systems, including:
Ronald King (2012) Research Methods for Information Systems, and
Williamson & Johanson (2018) Research Methods: Information, Systems & Contexts.
However, I would encourage you to introduce the 'bigger picture' (such as the research landscape in the attached diagram) before presenting specific methods.
Textbook material should also be supplemented and updated with recent journal articles that present the state-of-the-art for specific methods. These include:
Davison et al. (2021) Improving action research by integrating methods, Journal of the Association of Information Systems.
Hair et al. (2017) An updated and expanded assessment of PLS-SEM in information systems research, Industrial Management & Data Systems.
Venkatesh, V (2013) Bridging the qualitative-quantitative divide: Guidelines for conducting mixed methods research in information systems, MIS Quarterly.
Wiesche et al. (2017) Grounded theory methodology in information systems research, MIS Quarterly.
Cheers!
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I am searching for the textbook that can cover complete SERS topics in depth.
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I am searching for the textbook that can cover complete SERS topics in depth. Surface Enhanced Raman Spectroscopy · Textbooks
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better if includes recent knowledge in physiology taxonomy and diversity .
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1. Taxonomy of vascular plants- George HM Lawrence
2. The genera of flowering plants - J Hutchinson
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A while ago I attended a course titled "Contemporary Themes in History" which was essentially events of the 20th century, however, thought thematically. What I'm looking for is the particular textbook which followed the same structure. and it had hand picked interesting chapters such as on: cultural revolution, feminism, Islamic fundamentalism.
I have been trying to search for it on Google search engine, however, I'm totally incapable of finding anything related to "textbooks" only some results for popular non-academic books!
Any advice/suggestion are appreciated.
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See there is lot of books available regarding 20th century. But it didn't contain the same theme of the conference that you have been attended. May be they could collect the theme by referring so many books
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I am looking for outstanding English for medical purposes textbooks to teach students belonging to medicine and nursing departments.
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Please calrify, your purpose, you told best english book for medical purpose.
1. Explain what you want to learn in medical because its a vast course of study.
please clarify than only we can help
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Would appreciate if you could recommend me a a good textbook for reference of Biostatistics for Master level students.
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I don't, but try this you could find many good books.
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System Identification self-taught textbook
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Maybe you can consider the recursive least squares algorithm (RLS) which allows for (real-time) dynamical application of least squares (LS) regression to a time series of time-stamped continuously acquired data points. As with LS, there may be several correlation equations and a set of dependent (observed) variables. RLS is the recursive application of the well-known LS regression algorithm, so that each new data point is taken in account to modify (correct) a previous estimate of the parameters from some linear (or linearized) correlation thought to model the observed system. For RLS with forgetting factor (RLS-FF), adquired data is weighted according to its age, with increased weight given to the most recent data. This is often convenient for adaptive control and/or real-time optimization purposes. A particularly clear introduction to RLS/RLS-FF is found at:
Karl J. Åström, Björn Wittenmark, "Computer-Controlled Systems: Theory and Design", Prentice-Hall, 3rd ed., 1997.
Application example ― While investigating adaptive control and energetic optimization of aerobic fermenters, I have applied the RLS-FF algorithm to estimate the parameters from the KLa correlation correlation. Estimates were improved by imposing sinusoidal disturbance to air flow and agitation speed (manipulated variables). This investigation was reported at (MSc Thesis):
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I am looking for a textbook on statistics especially designed for sociology undergrads.
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Thank tou. I'll have a look.
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Hi, can anyone recommend some textbooks on quantitative research in social sciences? I have the following three. Any one of them your favorite? Any others?
Doing Quantitative Research in the Social Sciences: An Integrated Approach to Research Design, Measurement and Statistics
by Thomas R. Black
Quantitative Research Methods: From Theory To Publication 1st Edition
by Dr. Nicholas Harkiolakis (Author)
Quantitative and Statistical Research Methods: From Hypothesis to Results
by William E. Martin (Author), Krista D. Bridgmon (Author)
Thank you,
Shizuka
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I prefer a research-specific book for my quantitative inquiry. Tips;
For General-purpose:
1. Research Methods for Business-A skill-building approach-Uma Sekaran & Roger Bougie (Wiley).
2. Business research methods-Alan Bryman & Emma Bell (Oxford University Press).
3. Designing and using organizational surveys-Allan H. Church and Janine Waclawski.
For data analysis purpose:
1. Discovering statistics using SPSS-Andy Field (Sage), you can also consult Julie Pallant's Step by Step SPSS.
Hope this would be of help.
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Multi-level modelling introductory textbook
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Interesting
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Hi friends,
Can you support me this question I need to generate Sinusoidal wave form [ 1, -1] from input is x= 0 to 2pi by using Horner method ?
Input x= 0 to 2pi
output = sinusoidal wave [1, -1]
Method = Horner method
can you share any related to papers/textbooks/articles/videos'
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Using MATLAB or Octave, it is fairly simple to show that only a few terms in this series are sufficient, see: