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- NewAny article on muratina (traditinal african brew alcohol) preparation and chemical analysis?
hello researchers? i need to know the chemical analysis which can be done to traditional african made brews such as muratina within kikuyu of central kenyaFollowing
- NewThe overlap and fusion of fibers can cause changes in the mechanical strength of electrospun scaffolds?
please see the pictures.
I want to know about overlap and fusion of fibers in the C part in attached picture. it can cause changes in the mechanical strength of electrospun scaffolds? how?
increase or decrease?
can you introduce an article to me? thanksFollowing
- 5How can I change grouped data into individual data? Is there any user-friendly and the most suitable method to do this? thanks in advance..
I have a grouped age data on fertility rate..
It actually depends on the type of software but i seriuosly believe in R software, send your data I will help.Following
- 35What should be democracy, apart from elections?
There is no universal agreement on the concept of democracy.
Many political scientists agree with some realistic definitions, which describe what democracy is in the real world.
Normative views –what democracy should be-- are much more diverse.
Democracy in reality, just as democratic ideals, has changed over time. Some democratic aspirations of today's people may become part of democracy in tomorrow's real world.
What are your views on the Ideal Democracy? What should be democracy, apart from free elections?
Dear Barbara Sawicka
Very Right ma'am. I was very happy to read your answer. I had intended to touch that aspect but my answer was getting too long. Representative democracies are the order of the day now. Direct democracies are also practiced at the lower levels in India - Village level in the Gram Sabha meetings. - Also known as village level Parliaments - Assembly of village level voters to decide about issues concerning the village.
But again at the higher levels it is not possible to do that. Even the representative democracies are becoming too representative due to various other factors.Following
- NewCan anyone tell me that which are the advantages and disadvantages of SWAT & RUSEL Model ?
I need it to my research in Hydrological modeling.Following
- NewCan anyone tell me that which are the advantages and disadvantages of SWAT & RUSEL Model ?
I need it to my research in Hydrological modelingFollowing
- 14Statistical advice on analyzing the trend of cases over time?
I'm working on an article concerning poisoning and wanted to analyze the trend of cases over time but don't know as to what test applies to it in SPSS and how to tackle it.
Attached is the example of what I want to do and the data available with me.
I would be very thankful if anyone is willing to guide me on this.
Thanks in anticipation!
Zainudin is rightFollowing
- 10A horrible life (Blackout event) for 15 days is coming soon in our motherland. Are you feel anxiety? How you will overcome from this event?
According to NASA World will remain in complete darkness from 15th November 2015 to 30th November 2015 due to astronomical event between Venus and Jupiter.
Thank you, Prof. Milan for bringing up some common sense and to avoid an useless global run to buy all available lamps in all supermarkets!Following
- NewWhich one do you think is better in indexing and searching large PDF and OCRed documents? ElasticSearch, Solr or simple Lucerne?
A number of open source solutions are available that can be used in indexing and searching documents. However, I want to index and search large PDF documents. Which one should I use, ElasticSearch, Solr or simple Lucerne? And why? Does any body know any open-source solution or project that has used any of these or others for the said purpose?Following
- 4To produce good business graduates, what is most preferred: Academics, Experiential approach and Research?
It's interesting to find in many MBA, BBA and post graduate colleges, the focus is heavily placed on academics while a few others go with a blend of academics and little research. Hardly fewer would be there to adopt a more experiential approach by using teachers having industry experience. What do you think would be the most important area of emphasis if you were to produce good management graduates?
Thanks Mohammad Israr Khan sir. I appreciate your sense of social concerns and business ecology. Thanks, sirFollowing
- New#Sustainable #Development #Goals- No poverty... is it sustainable ?
- 1What does it mean non-parametric test, e.g. chi-square and what are other non-parametric tests?
parametric and non-parametric tests - any guidance please.
This is a very brief explanation and there is more information in the links:
Parametric tests has an underlying normal distribution and they are based on central limit theorem. So we use parametric tests when we have continuous normally distributed variables or large samples, so we can assume normal distribution according to CL theorem. When we have categorical vars. or small samples and non-normal distributions, we apply non-parametric tests. In general, every common parametric test has its non-parametric equivalent. For example, Pearson corr. <-> Spearman corr., Independent samples T-test <-> Mann Whitney U test, Paired samples T-test <-> Wilcoxon test, One way ANOVA <-> Kruskall Wallis test, and so on...
- 18Is mis-citation a real problem or a mere trifle?
Now and then I see some papers of mine referred to within a context to which they have no relation at all or which they rather contradict to than corroborate. Is it but my sad experience or is it more common as one of byproducts of modern scientific “publication burst”? Is something to be done to make authors be more honest in this respect?
Hello dear Prof, do you notice this new feature on RG, where MIS-CITATION CAN BE COMMENTED UPON AND HOPEFULLY ACKNOWLEDGED? THANKS TO RG.
My paper was mis-cited. I put a feedback comment. But so far, no action was taken. At least, I get the satisfaction that I have done the best that I can. Have a look at the feedback at the end. Please scroll. Thanks Prof Boris.Following
- 1What's the correct statistical test for textual codes?
I have the following textual codes and total number of frequencies that I encountered such codes in texts:
Factual Information Total frequencies
1 IV (four independent groups) + 1 DV (total frequencies)
1 nominal + 1 scale
no possibility to draw a distribution or check for similiar/dissimar shape
not necessarilly independence of observations
I'd like to simply check if there are differences between groups and the total frequencies. What could be the best non parametric method to use?
You can find kruskal wallis more appropriate since interest is on testing whether group differsFollowing
- 2What suction pressure do practitioners actually use when performing endotracheal suctioning in their intensive care setting?
As is apparent from my research interest, I have found that some intensive care units are using levels of vacuum pressure far above that recommended in best practice guidelines. In my setting the suction is taken directly from a central supply that may generate, on a quiet evening with theatres closed, some minus 80kPa of occlusion pressure but generally over 70kPa. More than a little different to the recommended occlusion pressure of some 16 to 20 kPa (120 to 150mm Hg) set using an attached suction regulator, you would agree.
But. How widespread is this practice? And, how will it affect my results if I wish to compare studies involving this cohort of patients with those in Intensive Care Units where the procedure is performed in accordance with recommendations.
Yes this is true suctioning safely involves several aspects . Catheter to ET tube ratio, depth of suctioning and time, as well as pressure setting.
However a size 14 French (4.7 mm OD) catheter will suction 56 liters per minute toward an occlusion pressure of 70 kPa (525 mm Hg) whereas when regulated to 16 kPa or 120 mm Hg a flow of 20 litres per minute will be seen through that same catheter toward occlusion pressure. An occlusion pressure of 48 kPa (365 mm Hg) will draw a reported 40 liters per minute through a size 14 Fr suction catheter.
As the catheter is inserted further into the quickly narrowing airways negative pressure distal to the catheter will increase (become more negative) as resistance to return flow increases. Particularly with open suction. Should airway collapse occur, then the set suction pressure will be transmitted directly to the tissues beyond I suspect.
Interestingly, any negative pressure within the airways below - 40 mm Hg will cause negative pressure pulmonary oedema with the maximum negative pressure that an average human can develop against an occluded airway being about 80 mm Hg. as in choking or strangulation.
But this is not the question. guidelines have existed for many years now recommending (sensibly) a requirement to take care with the amount of vacuum used and yet this does not always happen. Questions of a safety, legal and ethical nature may arise when a known risk is not taken into account when performing a procedure as seemingly straightforward as ET suctioning. To what extent practice does or should follow "best practice" or "evidence based "practice guides is yet to be examined.Following
- 10Can Greenberg's word order universals be applicable to all kinds of languages?
In the world, there are roughly 7,000 languages belonging to a hundred different language families. The most popular theoretical assumptions regarding word order were developed by Greenberg in 1963. His word order universals have received great interest from linguists and grammarians alike, who have been trying to account for 'cross-language word order patterns'. My question is (Can we point out that all his word order universals are applicable to all languages in the world taking into consideration that Greenberg proposed his linguistic universal based primarily on a set of 30 languages?
Dear Rahimi, thanks for your comment..Following
- NewCan someone avail me with El-Awady original publication of his isotherm?
I want to see how the isotherm is applied to the adsorption of solutes.
- NewCould you name some aquatic plants found in India?
I am planning to pursue my PhD. in aquaponics. Could anyone suggest me its future scope in India?Following
- 20What's the best way to analyze the relationship between continuous dependent variable and discrete polychotomous variables in spss?
I got this dataset for my research which has various discrete polychotomous variables. I'm not sure what kind of analysis i can use to determine the relationship between them and the continuous dependent variable in SPSS. Also I use the spearman's rho to determine the correlation between each variable. is there any other way to get a more correct correlation between varibles?!
Besides, some other variables have already been transformed into dummy variables or ordinal ones (1/2/3...). I am wondering if this will greatly influence the robustness for my regression model.
Thank you very much!
Since the independent variable is categorical in nature, you can try dummy variable regressionFollowing
- NewHow to calculate gap between grain size in thin film?
I have XRD pattern of thin film. I have calculated structural properties from the XRD spectra. I have also SEM micrograph of these film. The shape of grain size is hexagonal. Now, I want to calculate the gap between the garin size. Please guide me. Thanks.Following
- 5Can anyone recommend articles about a veto right of parliamentary opposition in German parliament?
There are some articles talk about the veto right for parliamentary opposition in German parliament, but they didn't mention that which law, provides or guarantees this right; German constitution or the law of procedure of the (Bundestag).
Hello Prof Marco Althaus,
Thank you very much foe the answer, you illustrated more issues that opened my view about the veto right of parliamentary opposition in Germany. I sow in some researches and articles talked about this but couldn't convince me . The answer and references are very helpful.
And let me sen my thankful message to Mr. Jefrrey de Fourestie, for his useful answer.
Thank you again
With Best Regards
- 2What is meaning of photon polarized at 45 degree?
what is meaning of photon polarized at 45 degree? what is difference between +45 degree polarization and -45 degree polarization of photon?
In Ex and Ey plane photon polarization at 45 means polarization direction of light along the diagonal of this plane. Correspondingly is the definition of -45 degree polarizationFollowing
- NewWhat are various herbs used in ancient 'Indian ayurvedic samhita' & their uses?
what are various herbs used in ancient 'Indian ayurvedic samhita' & their uses?Following
- 9In animal study which gender and age of sprague dawley rat is preferred ?
As I have seen in the Journal papers about the gender specification.
Thats a lot of help. Thanks everyoneFollowing
- NewWhat can we learn about interstellar communication from archaeological findings?
A recent publication from SETI seems to suggest that it is possible to find connection between archaeology and interstellar communication (file included).
My question: What can we learn about interstellar communication from archaeological findings? Your comments are welcome.Following
- 5Is there any way to identify metal vacancy defect by XPS?
I introduced various concentration of metal dopant to a Zinc oxide. Based on defect chemistry equations, I found that it is possible that metal vacancy exists in the product. Is there any way to identify the existence (or tendency of its amount after various doping concentration) by XPS?
You may find a large amount of information by simply introducing " metal vacancy defects and xps" in the search tool of the Sciencedirect from Elsevier:
For example, in the abstract of the manuscript entitled:
"TEM and XPS studies on the faceted nanocrystals of Ce0.8Zr0.2O2"
Materials Characterization, Volume 100, February 2015, Pages 31-35
Debadutta Prusty, Abhishek Pathak, Manabendra Mukherjee, Bratindranath Mukherjee, Anirban Chowdhury
It is stated
" X-ray photoelectron spectroscopy analyses confirmed the presence of vacancy related defects and revealed the presence of ~ 22% of Ce3 + in the nanopowders"
- 16Microscope imaging of emulsions?I'm interested to know how can I make a thin layer of single droplets of an emulsion between the object plate and the cover glass without destroying the natural structure of the droplets.
All have given valuable information about electron microscopy. For light microscope, you can use concave glass slides that have concave depressions so that coverslip will not touch depression region (and emulsion droplet).
- 7What are some of the models of dark matter using a scaler field?
What are some alternative models of dark matter as a scaler field using an approach similar to one found in the paper http://arxiv.org/pdf/1504.04037.pdf?
Approaches to resolving the dark matter question using modified gravity are very difficult when structure growth prior to recombination is considered since there were no gravitationally bound structures at that time.
A second problem for such approaches is dwarf galaxies or globular clusters with very high mass-to-light ratios. Worsley above gives an upper limit of 6.25 but for example the object known as Segue 1 has a mass to light ratio of 3400.Following
- NewCan we compare gravitational wave spectra from vibrating string spectra?
The study of gravitational wave is quite old, but gravitational wave spectra is rarely studied (see: http://inis.jinr.ru/sl/P_Physics/PGr_Gravitation/Ciufolini%20(ed.).%20Gravitational%20waves%20(IOP,%202001)(422s).pdf)
Since gravitational wave can be considered as classical wave, then it seems possible to compare its spectra with vibrating string spectra. What do you think?Following