02 May 2017 1 8K Report

Is it correct to measure random urinary cortisol with the chemiluminescence system that is set for 24-hour urinary cortisol?

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Does re-stimulation of T cells with PMA and Ionomycine before staining for intracellular cytokines for flow cytometry affect reliability of the assay?

I understand that to be able to measure intracellular cytokines there is a need to restimulate with PMA and Ionomycin but I don't understand how the results will be reliable after that. PMA and...

18 January 2021 7,240 7 View

In meta-analysis of binary outcomes, what should we do when the occurrence of outcome is zero in both groups?

In conducting meta-analysis of binary outcomes (in RCTs), in case the risk ratio has not been reported, what should we do with the studies that the number of outcomes occurrence is zero in both...

09 January 2021 2,802 5 View

How to calculate ratio of means and ratio of geometric means?

In conducting a meta-analysis, sometimes, some studies have reported geometric mean, while others have reported arithmetic mean. One solution for pooling these studies is calculating the ratio of...

11 December 2020 4,663 3 View

Is (Are) there any valid corpus containing geographical events queries?

Hi all, I'm currently looking for a question corpus to have a plausible number of spatial events queries. I found MS MARCO dataset in which I could extract a reasonable number of geographical...

08 December 2020 7,844 2 View

How To Find Electrical Nanodipole and Magnetic Loop Dimensions At Optical Wavelength?

I would be grateful if you could suggest a paper or book which provides an equation to determine the dimensions (length) of an electrical nanodipole and magnetic loop antenna at desired optical...

17 October 2020 2,421 4 View

What effect do epidemics have on cerebral physiology?

How trauma and fear of infection can affect brain functions and structures?

10 October 2020 6,642 1 View

Do I have to assume sphericity or not when conducting two way repeated measures ANOVA in graphpad prism 8?

I am analyzing data obtained from a crossover study conducted on same animals evaluating the effect of two different anesthetic drugs on heart rate, respiratory rate, pulse oximetry, rectal...

28 September 2020 6,408 4 View

Can anyone advise me in selecting a good pair of universal primer/primers for identification of lactic acid bacteria (probiotics)?

when I blast the existed primers specially 16s rDNAs , I cant get good results.

21 September 2020 1,584 4 View

Could anyone help me searching for protocols in fiber analyses ?

Hello, I am looking for protcoles to evaluate the following components: TDF : total dietary fiber, SDF : soluble dietary fiber, IDF : insoluble dietary fiber et TDN : total digestive nutrients.

06 September 2020 371 2 View

How to interpret arima model with regressors in r?

Hi there; I need to produce such an equation for a time series using arima model: y(t) = y(t-1) + a*x(t) + b*x(t-1) I know if I use for example arima (1,0,0) with x as the exogenous...

07 August 2020 7,438 6 View

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Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

Benefits of the 24 welled plate?

We have always used the 96 welled plate, the 48 welled plate but apparently there is much evidence on the 24 welled plate and above all its benefits.It states it is the same you would use on ELISA...

28 February 2021 1,149 1 View

No title

I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 3 View

How could I process data in RCT to include it in meta-analysis?

I'm in the process of doing a meta-analysis and have encountered some problems with the RCT data. One of my outcom is muscle strength. In one study, I have three different measurements of muscle...

25 February 2021 7,603 3 View

How Can I clain a removal of a co-author?

I would like to make a correction in a co-author in your paper which is wrong. This name is also in other papers of Kenton Ko. Zey Ko is not a Co-author . The correct name is Zdenka...

24 February 2021 3,476 4 View

Is it mandatory to specify Subjects Combinations in Generalized Linear Mixed Models (SPSS)?

Hi all, I have data with two levels: lets think of the classic example of students and schools. When running the analysis in SPSS and selecting the Random Effects, we can select (we can or we...

24 February 2021 7,379 4 View

How does the injection volume impact LLOQ and ULOQ in regression analysis (LC-MSMS)?

Hello, I have run into an issue that has sparkled a debate at work: is the LLOQ/ULOQ impacted by injection volume under the following circumstances: 1) Same dilution factor of all samples 2)...

23 February 2021 9,159 3 View

Can two EC50 values with different hill slopes be compared?

Hello, I fit a classical dose response curve Y=Bottom + (Top-Bottom)/(1+10^((LogEC-X)*HillSlope)) to my data (not related to inhibitors etc). The model I use is purely qualitative but it fits...

23 February 2021 8,155 5 View

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