What is the most appropriate statistical tool to carry out a study on: Effects of Jigsaw Strategies on Students' Performance in Maths?

The Performance consists of Attitude, Achievement and Retention

10 December 2020 5,459 2 View

Is iron oxide (rust) a problem in DNA extractions?

Hello, I just started extracting DNA from some spiders, using 5-mm ball bearings to grind the specimens in a tissue mill. I had ordered the ball bearings on Amazon, and thought it was a good idea...

21 July 2020 2,271 6 View

Where to find resources to improve a self-designed psychometric instrument?

When our institution had to switch rapidly to remote instruction, professors who had not taught remotely before wondered what the best blend of synchronous and asynchronous activities would be....

27 May 2020 841 3 View

Cardiovascular condition in patients living with diabetes ?

I am doing a review work on the cardiovascular conditions of patients living with diabetes Miletus. I wish to know where to look for very recent resources. Apart from published literatures, will...

18 December 2019 652 5 View

Why are surrogates only added at the time of extraction, not at the time of sample collection and processing?

I am working on a study on pharmaceutical fate and uptake in plants. We are wondering about analyte degradation during the initial transport, processing, and storage of the soil and plant samples,...

30 October 2019 3,540 1 View

Can anyone give me information on machine learning algorithm code?

Researching in the field of Abnormal Traffic Identification Methods.

26 March 2019 9,495 5 View

Can anyone suggest some qualitative research that has been done on low SES parental attitudes to literacy and lanaguge development?

I am studying this area for my masters in education thesis and would appreciate any suggestions on good articles/books/journals on this area.

06 October 2017 9,978 2 View

Any way to salvage data from merged colonies in a colony forming assay?

We attempted a series of colony forming assays of cancer cells for irradiation. However, due to some vibration issues from our incubator, the cells settled towards the center of the plate...

27 July 2017 5,593 1 View

How do heart-rate monitors work?

03 July 2017 1,651 8 View

What are the key morphological differences between male and female Tuta absoluta, a tomato leaf miner?

I am doing some biological studies on Tuta absoluta

04 April 2017 3,287 21 View

Buffer to disrupt platelet alpha granules for PF4 quantification?

Hello! I want to quantify by ELISA the secreted (from platelets poor plasma) and the non-secreted (from platelet lysate) PF4 before and after TRAP stimulation. I will use the ELISA from R&D...

03 March 2021 1,499 2 View

Dapi fluorescence protocol for colon cell lines ?

28 February 2021 2,534 2 View

Can I use acetic acid with an ELITE WAX Perkin Elmer column for Gas Chromatography?

Hi! I would want to know if I can use acetic acid with an ELITE WAX Perkin Elmer column for Gas Chromatography. This column has a polyethylene glycol phase, but I can't find the manual to check...

22 February 2021 730 2 View

How to seperate PEG-4000 from aqueuse phase ?

Hello everyone , Please tell me if It possible to seperat POlyethelyn glycol -4000 from an aqueuse media by other ways rather heating . I have tried salting out by electrolyte solution to...

22 February 2021 7,285 5 View

For acid treated montmorillonite clays what will be the result of surface area?

The organo montmorillonite nanoclays modified with octadecylamine were used for the experiment. After acid treatment, the surface area will be increase. However, in my experiment, the surface area...

10 February 2021 1,581 3 View

Are there any differences between setting automatic or manual number of measurements in DLS?

When doing measurements in DLS (either size or zeta potential), I have the option to input an automatic number of measurements or to set it manually. My question is: is there a drawback in...

08 February 2021 9,423 6 View

In what type of container can we put a 200 degree Celsius poly alkylene glycol? what should be the material of the container?

I am having a 200-degree Celcius heated poly alkylene glycol now I want to know in which type of container should I put that heated glycol or what should be the material of the container?

08 February 2021 6,819 1 View

What could be the reason for XRD pattern starting from very high counts/intensity at 3 degree 2 theta?

I am working on XRD analysis of the clay minerals from the sea sediments. My XRD pattern shows very high counts at the start of the XRD pattern (3 degree 2 theta) which is very unusual. The counts...

31 January 2021 4,493 9 View

Is it possible to prepare clay minerals by mixing pure oxides of required elements? What would be theoretical difficulties with it?

Practically this is not at all necessary. But theoretically, would hydrous/hydrothermal synthesis be enough (like mix 1 mole alumina gel and 4 mole silica gel and gently heat) or would it require...

26 January 2021 6,403 3 View

GC-Headspace (HS-GC) chromatography for Forensic toxicological and Food expertises?

Dear Colleagues! How correct and appropriate is it to conduct forensic toxicological and food examination of volatile substances (ethanol, methanol, propanol, ethyl glycol, etc.) in blood and...

24 January 2021 5,645 2 View