Global management market of courses & marketing to improve quality in Pt Treatment or science or mainly Bureaucracy?

12 October 2020 9,272 1 View

SEM: What does CFI = 1 & RMSEA = 0 indicate in over-identified models?

I'm suspicious about "perfect fit" in my SEM path analysis, with fit indices of CFI = 1 and RMSEA = 0 which I would expect from an just-identified model. However, since I have 3 degrees of...

08 August 2020 1,492 4 View

Data on most frequently researched KSAOs or personality traits?

I'm looking for meta analyses or reviews, summarizing which knowledge, skills, abilities and other characteristics (KSAOs, especially personality traits) are most frequently researched in...

22 May 2020 332 1 View

AC/DC inverters: Are there any standards or laws regulation DC output on the AC Grid?

Hi, we are working on internal specifications on On-Board Charger for Battery electric vehicles. We have seen some field failures on older generations. We are suspecting that e.g. PV AC/DC...

15 December 2019 6,887 1 View

How to test unidimensionality for polytomous data with IRT-models in R?

I would be thankful if someone could give me a short breakdown on how to test unidimensionality of polytomous data (likert-scale) using IRT-models in R. As it is my understanding that the...

22 November 2019 6,730 7 View

How do you optimize your research design for questionnaires with large item pools?

While developing a questionnaire to measure several personality traits in a somewhat unconventional way, I now seem to be facing a dilemma due to the size of my item pool. The questionnaire...

30 May 2019 2,633 4 View

What factors generally improve inter-rater reliability?

I'm developing a questionnaire to assess observational data in an area of research which is notoriously prone to low inter-rater reliability. Hence, I'm looking for factors in questionnaire design...

03 December 2018 4,006 3 View

Machine learning in economic research?

What is your take on machine learning as an applied method in economic research. is it a game changer or will it not impact your approach to research?

22 July 2018 7,401 5 View

Is there any way to statistically test control samples with parent material?

I want to statistically test the relative gene expression of precision cut liver slices with the gene expression of their parent livers. I have 14 samples from 3 different parent livers that I...

09 March 2018 4,517 4 View

What is the average magnitude of correlations between common personnel selection methods?

Looking for recent (preferably meta-analytic) findings that yielded estimates of the proportion of shared variance among common personnel selection methods such as structured and unstructured...

11 December 2017 1,946 3 View

Why does blocking with my immunogenic peptide cause nuclear fluorescence in ICC?

Hi all, I am validating a polyclonal antibody raised against human ANT4, through WB and ICC. In most of my controls, the antibody shows very little off-target binding, but when I pre-incubate the...

03 March 2021 5,999 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Have someone successfully used the ER alpha (Santa Cruz sc-8002) antibody in immunostaining ?

Santa Cruz now recommends this new antibody (F-10) but I can't find a publication using this reference. I'm working on human et non human primate hypothalamus and so far, it doesn't work. Is...

02 March 2021 10,003 2 View

Is SSRN e-Journal Scopus indexed?

I have publication in SSRN. I want to know whether it is Scopus indexed? Does it show impact factor? What is its ISSN No.?

02 March 2021 4,565 3 View

Issues with Permeabilization during Flow Cytometry?

Hello Everyone. Currently I am working to characterize macrophages in the myocardium after ischemia-reperfusion injury in rats. Due to the low total cell number isolated from rat hearts I can...

01 March 2021 3,867 3 View

Does anyone know an alternative product for cardiac Troponin T antibody for Immunofluorescence (Thermo # MA512960)?

We have been using Thermo Fisher anti-cardiac Troponin T antibody for immunofluorescence staining in FFPE mouse heart sections but it was recently discontinued. The literature shows it to be the...

01 March 2021 4,937 1 View

What is the most reliable source to get Impact factor of journals?

Source to get Impact factor of journals

01 March 2021 6,654 2 View

Is it possible for two human neuronal cell lines to have different gene sequence for the same protein?

I am looking at the ATP1A2 (Sodium/Potassium ATPase alpha subunit 2) in two human neuronal cell lines. Expression levels of this protein seems to be almost equal when detected by one antibody....

01 March 2021 3,607 3 View

How does an antibody have full intact antibody + half antibody?

Hello, I was just wondering how does a antibody have full intact antibody + half antibody? Is it because of the drug conjugation?

28 February 2021 1,577 1 View

Does anyone use antinuclear antibody (ANA) and anti-Phospholipid antibody ELISA kit for Non Human Primate serum samples?

I am looking for anti-nuclear antibody (ANA) and anti-Phospholipid antibody ELISA kit for Non Human Primate serum samples. Any suggestions highly appreciated. Thank you.

28 February 2021 6,512 3 View