What spectrophotometric method can be used to detect and quantify total nitroso compounds in wine?

The samples will be fruit wines, since nitrosation in red wine was reported to contribute to mutagenicity. So far, a chemiluminescence method was reported, although our laboratory has limited...

11 December 2014 7,314 6 View

Can science education graduates perform experimental research in chemistry?

I am aware that chemistry science education students should perform science education research. But is it allowed for a student to conduct research on natural product chemistry or environmental...

03 April 2014 5,009 2 View

Where can I obtain a copy of the Sternberg Triarchic Ability Test?

I am interested in using the questionnaire to assess the intelligence profile of students in our department in relation to developing a plan of action for our teaching strategies.

03 April 2014 4,161 3 View

Which is a more appropriate statistical test for assessing genotoxicity of samples: Student's T-test or ANOVA?

I compared the genotoxicity of four compounds (metal complexes of an organic compound) with the positive control. Most studies utilized Student's T-test. What I have in mind is ANOVA with post hoc...

11 December 2013 8,060 5 View

Is there a protocol for the isocratic HPLC for ochratoxin A and sterigmatocystin using UV?

I am planning to quantify the two fungal toxins in coffee simultaneously using HPLC but our equipment has no fluorescence detector. Is it possible to utilize UV detection?

09 October 2013 3,196 4 View

How do you isolate proanthocyanidins from peanut seed coat extracts?

Proanthocyanidins in peanuts were reported to be similar with those found in cranberries. In some references, ethyl acetate was used. How do I remove ethyl acetate and produce a pure...

04 May 2013 9,071 3 View

How do you separate biogenic amines using paper electrophoresis?

I used a pH 6.0 Phosphate Buffer Solution, and regular paper chromatography at 100V. It did not work well though.

03 April 2013 4,569 3 View

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02 March 2021 3,060 3 View

How to quantitative analize the data of TNBS assay for gelatin?

Estemeed colleagues, I found some issues regarding the quantification of the data for TNBS assay. There are different protocols on how to perform that but it is clear to me the "fil rouge" that...

02 March 2021 2,616 1 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 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

How to simultaneously perform multiple biochemical assays?

I am a research scholar working on heavy metal stress on plants. I will be doing biochemical characterisation( protein, carbohydrate, proline, antioxidant enzymes and many more assays) at interval...

01 March 2021 6,999 3 View

Which cell line should we use to perform biological dosimetry experiments?

We are preparing some experiments based on irradiating cells under different conditions in order to evaluate the effects in terms of DNA damage, genetic expression, etc. As our project is...

01 March 2021 3,355 3 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