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  • Ibrahim Ahmed Onour added an answer in Banks:
    How to do DEA on large number of banks?

    I have to perform DEA on large number of banks, around 100 and I'm using TORA for problem optimization and going with the traditional way I would have to enter the data for all 100 banks manually which is making my work tedious. Can anyone suggest a simpler method to do the same?

    for eg: forming groups of banks, categorizing them on the basis of some factors such as reserves or branches, then find out the average values and then perform DEA.

    Will my above method give me right result?

    Ibrahim Ahmed Onour · University of Khartoum

    In DEA your data entry includes inputs and outputs, so if you have large number of banks it is a credit using DEA for relative efficiency inspection. Make sure that you have  the same input and output variables for all DMUs. If your data includes for some DMUs data on branches, you need to consolidate it to have the same data for each bank. Goodluck 

  • Saeed Moradnoory asked a question in Transmission Line:
    Cable armor to protect against impact and pressure used Knnd.rmvr what is sexual? Transposed transmission line to reduce the inductance effect?

    Cable armor to protect against impact and pressure used Knnd.rmvr what is sexual? Transposed transmission line to reduce the inductance effect?

  • Taisia Alifirova added an answer in Garnet:
    Does anyone have suggestions on corundum exsolution in garnet from garnet peridotites/pyroxenites?

    There's a number of data reported for the exsolution of different mineral phases from high temperature and high pressure garnets (including pyroxenes, rutile, apatite, spinel and others). Presence of corundum in orogenic peridotite assemblages is commonly attributed to UHT conditions. The point is what the hypothetical exsolution of Crn from Grt can tell us about. So I would be grateful for any personal suggestions or advises of already existing information from studies of natural and experimental objects. 

  • Anyone knows a case of a social-ecological system illustrating the human capacity of learning and deliberate transformation to increase resilience?

    I am searching a paper on a case of a SES (social-ecological system) that illustrates the human capacity of social learning, enabling deliberate transformation of the SES, for example to a higher scale of governance, thereby possibly increasing resilience. I am looking for an example for any kind of deliberate transformation, e.g. in urban management, fisheries, forest management, protected areas, community building, etc; it doesn’t have to be a governance scale transformation, but ideally a system that undergoes the adaptive cycle phases and where a deliberate transformation led or might lead to increased resilience. Does anyone know of any such case? Thank you.

    Tobias Luthe · Hochschule für Technik und Wirtschaft in Chur

    Thank you Melf-Hinrich. Interesting case study you describe in the paper. I think it may be of help for our cause.

  • Jochen Wilhelm added an answer in Bayesian:
    What is main idea in Bayesian approach?

    Hello every one

    What is the main idea in Bayesian approach? what are the advantages and disadvantages in this method?

    Jochen Wilhelm · Justus-Liebig-Universität Gießen

    I think this is a too wide and general question for RG. There are lots of books and resources on this topic. So it would be better you get yourself informed. Then we can discuss a particular problem here.

    In short, the idea behind the Bayeian approach is to use probabilities to express expectations about hypotheses.

    The "conventional" probability theory was developed baes on games of chance where the underlying data-generating processes or hypotheses were known and probabilities were used to express an expectation about (yet unseen, unknown, future) data. In reaserach the problem is the inverse: we do know the data and we wish to use this knowledge to justify or modify our expectations about hypotheses (about how this data was generated).

    Bayes formalized the way how to move from

    • P(data, given some hypothesis is true)


    • P(hypothesis, given we know some data)

    The key problem is that this step is neccesarily relative to some prior expectation about all possible hypotheses. Some people think that it would be important to have "no prior expectation", referring to a state of "complete ignorance". Others say that this is not possible in principle.

  • Gonçalo Paiva Dias added an answer in E-Governance:
    What would be the possible reasons that may influence low or high adoption of transactional e-government services in the country?
    The advancement of a government in utilization of ICT for service delivery (e-Government), may result into transactional services whereby citizens can inquire, buy, and obtain government services online. This is possible by the use of channels such as the Internet, mobile devices (e.g. phones) and other. However, this may not guarantee high adoption of the intended services, particularly from the citizens.
    Gonçalo Paiva Dias · University of Aveiro

    In this study, we studied the main factors influencing the development of local e-government in Portugal: https://www.researchgate.net/publication/264822867_Significant_socio-economic_factors_for_local_e-government_development_in_Portugal

  • Romain Retureau added an answer in VASP:
    How can I calculate the RMSD (root mean square displacement) vs time curve of a molecular dynamics simulation in vasp?

    I try to calculate the molecular dynamics simulation in vasp. I want to plot the RMSD vs Time plot. Please tell me is there any INCAR tag to calculate RMSD or any equation to calculate the RMSD value for each MD step.

    Romain Retureau · Paris Diderot University

    I forgot to mention but you have to eliminate rotation and translation of the protein before calculating the RMSD. I think VASP can do it. What are the extensions of the trajectory file ? If it's xtc or some other, you can use GROMACS (the command g_rms) as J. Mendumpal mentioned. Otherwise,VMD as B. Wang mentioned works with almost all the trajectory files and also permit to calculate the RMSD automatically (and eliminate translation and rotation of the protein).

  • Saeed Moradnoory asked a question in Capacitor:
    15 transformers with a maximum capacity of several kW three-phase capacitor switching can be received?

    15 transformers with a maximum capacity of several kW three-phase capacitor switching can be received?

  • Hongtian Yang added an answer in Alexa Fluor:
    Does vector mouse to mouse IgG blocking reagent works with invitrogen Alexa fluor conjugated secondary antibodies?

    Hi, I'm recently working on immunostaining for Pax7 in mouse muscle cryosections. The primary antibody is mouse IgG1 anti-Pax7 (DSHB) and it seems the only antibody working in mouse with a Mouse to Mouse (MOM) IgG blocking reagent. I tried the Vector MOM IgG blocking buffer followed by blocking with 15% goat serum, anti-Pax7 overnight and Invitrogen goat-anti-mouse IgG1 for 30min. It turned out that there was very intense non-specific background. I got this protocol from a Nature paper and also tried different dilution of primary and secondary antibodies but all didn't work. Does anyone have experience with the mouse to mouse kit?

    Hongtian Yang · Louisiana State University Health Sciences Center New Orleans

    Maybe you can first validate the antibody using western blotting to see how specific the antibody is (whether it turned out to be multiple bands or a clean target band) .

  • Lipsy Gupta asked a question in Touch:
    What is the best way to find the annealing temp. for second step of pcr?

    I have primer set that has annealing temp. 60-61degree centigrade and GC content 55-60%. First step always gives good band the second step of touch down PCR gives non consistent bands under same conditions. I am trying this since last six months. what should I change ?

  • Catalina Bravo added an answer in Pest Control:
    What can be the appropriate solution to white flies in pawpaw??

    the white fly as the pest affecting pawpaw fruits.

    Catalina Bravo · Instituto Nacional Autónomo de Investigaciones Agropecuarias

    Yellow traps are good for capture adults, potasic soap is used too; in greenhouse or small extensions you can test also repellent plants, like tagetes, albahaca, margarita if it is avaliable in your country. All the options inside at the integrated management: podas, cleaning weeds, azadirachtin.

  • Omar Fergani added an answer in Crystal:
    What is the favorable deformation direction FCC and BCC crystals?

    Can anyone share with us his knowledge about the favorable direction and plane of deformation of FCC and BCC crystals? Any paper out there summarizing the knowledge about this ?

    Thank you.

    Omar Fergani · Schlumberger Limited

    I am planning on making the assumption that twinning will not happen.....

  • Sharanbasappa Durg added an answer in Meta-Analysis:
    Is there any minimum number for studies that should be included in meta-analysis?

    I do a meta-analysis under very specific criteria, however, I can’t find more than nine studies that fit my criteria, is that number acceptable and if not how many studies should I have?

    Indeed, the topic of this meta-analysis seems new, as I can’t find another meta-analysis within same criteria.

    Thank you.

    I have just copy-pasted a paragraph from the Book "Advances in Meta-Analysis" written by Pigott, Terri.

    LINK: http://www.springer.com/gp/book/9781461422778

    Another common question is: How many studies do I need to conduct a meta-analysis? Though my colleagues and I have often answered “two” (Valentine et al. 2010), the more complete answer lies in understanding the power of the statistical tests in meta-analysis. I take the approach in this book that power of tests in meta-analysis like power of any statistical test needs to be computed a priori, using assumptions about the size of an important effect in a given context, and the typical sample sizes used in a given field. Again, deep substantive knowledge of a research literature is critical for a reviewer in order to make reasonable assumptions about parameters needed for power.

    Good Luck ....

  • David O'Brien added an answer in Ponds:
    Does anyone know about the transport of fish eggs from pond to pond by birds?

    I´ve stumbled across this article: Experimental Quantification of Long Distance Dispersal Potential of Aquatic Snails in the Gut of Migratory Birds

    But I ´m looking for information about fish dispersal in Brazil. It is quite usual to find fishes in isolated ponds and I haven´t found any explanation but this.

    David O'Brien · Scottish Natural Heritage

    There has been much anecdotal suggestion of birds carrying the eggs of fish and amphibians but I am sceptical. It is often evoked as an explanation for isolated populations but evidence appears to be sparse. From a probability view, eggs and larvae of most spp have very high mortality rates and thus the likelihood of a male and a female reaching breeding age is low, though not impossible. Studies in the Pyrenees have suggested that fish only reach isolated ponds up hill through human introduction. Outside of the mountains, seasonal or occassional flooding is a much more common cause of spread, as Fernando Rey describes.

  • Has medical science develop cure for hernia apart from surgery?

    urologist,  surgeon or family physician

  • Vahid Rakhshan asked a question in Sex Differences:
    Are men and women equally intelligent? WHY?

    There are many aspects to intelligence. But are the average general intelligences of men and women equal?



  • Artur Braun added an answer in Electrodes:
    Can anyone suggest the methods for detection of ageing of electrodes in batteries and how I can determine it?

    Can you give me references if possible? Thank you.

    Artur Braun · Empa - Swiss Federal Laboratories for Materials Science and Technology

    In the laboratory you normally do this by determination of the capacity retention of the battery device. You run charge/discharge curves over time and observe the voltage maximum over time as transient curve. When the voltage maximum decays over time then this is the identification of a ageing of the battery. You have to google around. For example here: http://www.basytec.de/Literatur/temperature/DE_2002.htm

    This can have multiple origins and needs deeper analysis., incl. structure analyses of the electrodes.

  • Can anyone advise me which statistical method is suitable for associations between TB and PM 2.5?

    Anyone can advise me which statistical method is suitable to see the associations between TB infection and PM 2.5?

    Gehendra Mahara · Capital Medical University

    Dear Admin

    Thank you very much for your suggestion.


    Gehendra Mahara

  • Hanrui Zhang added an answer in Lentivirus:
    Lentivirus transduction of human macrophage increased mRNA by ~10 folds, but protein level was not obviously increased. What might be the problem?

    Hi Everyone,

    I am trying to use lentivirus to overexpress a cDNA ORF that encodes a human protein in human monocyte-derived macrophages. Although the mRNA levels were increased by up to 10 folds, the protein level were not markedly increased, i.e. less than 50%. The transduction rate is ~60-70% for the empty vector with a GFP tag. The overexpression vector also has a GFP tag, but likely due to the inserts, the GFP signal was a lot weaker. Anyone may have insights? Might pseudotransduction be a possible issue? Thank you very much.


    Hanrui Zhang · University of Pennsylvania

    Carl, Thanks for the tip! It is a secreted protein indeed and shall be detectable in the media though I am not sure how abundant it is. BTW, in your case, did the overexpression induce over several fold increase of your protein in the media and was the fold change of the protein relevant to that of mRNA? Thanks!!

  • Should I need to use the PML layer to calculate the confinement loss in photonic crystal fiber?

    I am working on PCF based SPR sensors. I am using COMSOL software. For the SPR sensor need to calculate the confinement loss. Just assume, I have polished two side of my PCF structure and now its look like flat. Now, I put the metal layers and sensing layer top of the polished  (only upper side) part. Now, to calculate the propagation loss should I need to use the PML layer.... or If I use the Scattering boundary condition then should be ok for loss calculation. 

    A. A. Rifat · University of Malaya

    can u plz give me ur paper link which one can be helpful to solve y problem? Moreover, can u also clarify my point? 

  • Hassan Ali asked a question in MASW:
    Scaling of time signals to match wave velocity?

    I have surface waves (MASW test) data (39 traces) from numerical simulations using FLAC and I conducted a laboratory MASW test (20 traces). 

    The group wave velocity from numerical simulation is 64 m/s while from laboratory test is 1000 m/s. Now I want to scale the results from numerical simulations to match the velocity obtained from laboratory. The material properties for two mediums are different. Any help is appreciated. 


  • Jan Vinita White added an answer in Aging Networks:
    What can be done for the aging populations in developing countries?
    For example, in India there is a growing demand of better places, support, and homes for aged.

    What is being done for the elderly and aging population in your corner of the globe?

    A friend of mine from India feels called to work the rest of his life on the project of creating in his homeland better facilities, structures, and support systems, institutions, and networks for the aging millions in India. The need is particularly strong historically there for widows, but others who do not wish to move across the country to relatives need help, too. I told him that Denmark and other countries in Europe have great continuing education and training programs for aged. Such focus on adult education and support in more developed lands is a resource for developing ones.
    Jan Vinita White · Walden University

    Hi Kevin, you have asked a provocative question.  I hope you find these sources useful from the Population Reference Bureau. 

  • Gonçalo Paiva Dias added an answer in E-Government:
    What theory is suitable for the content evaluation and analysis of E-government websites, especially in developing countries?
    I am writing a research proposal and therefore would like to know the theory to present my topic.
    Gonçalo Paiva Dias · University of Aveiro

    You might find this useful: https://www.researchgate.net/publication/268212376_Evolution_of_local_e-government_maturity_in_Portugal

  • Hartmut Zabel added an answer in Xenon:
    Is there a published value for the magnetic susceptibility of liquid xenon?

    I am trying to design a variable-field precision magnetometry experiment using hyperpolarized liquid xenon, and the problem of susceptibility matching remains unresolved. I have searched for a measured value of liquid xenon's magnetic susceptibility, but to no avail, meaning that I am probably looking in the wrong places... Does anybody out there in the ResearchGate universe (maybe someone involved in some of these dark matter detection experiments?) know of any resources where I might find a measured value?

    Hartmut Zabel · Ruhr-Univ Bochum; JG Univ Mainz; Uppsala University

    You may try the CRC Handbook of Physics and Chemistrry: http://www.hbcpnetbase.com/

    Hartmut Zabel

  • Oliver W Bayfield asked a question in PET:
    Expression of pET (T7lac) vectors in non-DE3 strains?

    Is it possible that Ecoli RNAP will bind to the T7 promoter? I know the standard line is no you need the DE3 or other source of T7 RNAP.
    But for example, I'm sure we've used BL21 instead of BL21(DE3) for IPTG-induced expression with pET vectors, but I've never looked at the basis.

  • Soufiene Taher Assidi asked a question in EIT:
    How to calculate the residue in this model?

    in the model 

    divergence it = B1 total accruals + u it + eit:  according to  Desai and Darmaphala (2006, 2009), the residues of  model is an appropriate measure of management tax.

    What is the method that allows me  to calculate  this  residue (uit + eit) 

  • Rodney P Jones asked a question in Fourier Analysis:
    Availability of on-line or Excell-based simple tools to do Fourier analysis?

    Am looking to analyse emergency admissions to hospital using Fourier or similar tools to pick out the fundamental frequencies.

    Not a mathematician so need simple to use tools.

    Is anyone aware if such tools are out there?

  • Saifeddin abu asab asked a question in Pulpotomy:
    What is the best vitality test for deciduous teeth?

    Thermal test , EPT, cavity test, covering cavity with high viscous GIC, performing pulpotomy?

  • Does anyone have an article for randomly distribution of points for active biomonitoring?

    I´m looking for an article with a methodology to radomly distribute sampling points for a active biomonitoring program withTillandsia usneoides .

  • Nima Dalir added an answer in FTIR-RAMAN:
    Could I get any online software which can convert FTIR / Raman spectra to related functional groups?

    I want to identify the Raman spectra for Polyoxymethylene polymer after electron beam irradiation

    Nima Dalir · Tarbiat Modares University


    i hope help you.   see above link: