Using two-tailed test for directional hypothesis?

In my study, I have used Process Macro to test the proposed relationships. The hypothesis is directional and two-tailed test has been deployed. Can anyone please clarify how to justify using...

06 February 2021 3,023 3 View

Why a colorimetric assay is usually not in green?

Various colorimetric assays we use are blue/purple/pink/red but not in green shades. Is there any particular reason for this?

30 May 2020 5,834 1 View

Is there a fluorescent dye or any method with which Chitosan can generate fluorescence?

I have generated polyelectrolyte complex in the form of fibers using Chitosan and polygalaturonic acid and in order to observe the fibers under confocal microscope they have to generate fluorescence.

11 March 2020 6,627 4 View

What are some physical methods to determine binding affinity of a protein?

What are various options available while determining the binding affinity of a protein to it's target? In my case the target is also a protein. Are there any standard physical methods to...

09 March 2020 8,053 8 View

Is there a way to convert a 2D matrix into 1D vector which preserves the joint distribution among the columns in the matrix?

I have a matrix where each column represents a feature and each row represent a data point. I am trying to convert this matrix into a 1D vector which can contain the joint distribution among the...

01 March 2020 6,408 3 View

How do I interpret the below test for Uni-variate normality?

Hi, I have a large data sample with 15k rows and I am trying to perform uni-variate normality analysis on the dataset. I have come to understand that normality tests are really sensitive towards...

11 March 2019 3,041 4 View

How to acidify samples when using GC-FID for free Volatile Fatty Acid quantification?

Hi everyone, I use the GC-FID with the StabilWax DA column (http://www.restek.com/chromatogram/view/GC_CH00284) for volatile fatty acid (VFA) quantification (C2 - C7 acids). For this, I use 2%...

15 March 2018 9,752 15 View

What kind of ANOVA to use for my analysis with four factors?

I am doing a study based on the speech measures with gender, health condition, different passages read and different number of sentences from each passage. The number of levels in these factors...

16 January 2018 310 6 View

Curious if desalination plants publish their utilization rates? i.e. how much of their built capacity they produce on a day-to-day basis?

In other words, I am looking for daily/weekly/monthly water production data of all large-scale desalination plants (above 20,000 m3/day).

11 October 2017 6,261 3 View

High GAPDH values in qPCR

I use GAPDH as reference gene in qPCR runs. For one of my samples, I am repeatedly getting high Ct values of GAPDH (27-33). it's 20 or less for all other samples and control. I tried using its...

06 July 2017 7,543 5 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Does anyone know to clarify these changes?

01 March 2021 1,290 2 View

In an eye with Tyndall, does each dot correspond to an individual cell?

When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...

27 February 2021 6,326 2 View

How to calculate the crystallinity of cellulose film?

27 February 2021 2,753 4 View

Mixed ANOVA - help?

I'm currently working on a piece which asks to conduct an ANOVA - looking at the effect of sporting group (2 levels), and exercise trials (two trials with six levels). I've computed this all...

27 February 2021 9,626 4 View

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View

Can anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 3 View