What statistical analysis method should I use with multivariate categorical data?

Hi, I'm struggling quite a bit, Hope someone can help. My research question is roughly to what extent (and what) characteristics of murder and manslaughter cases are related. The data consists...

05 October 2020 3,958 8 View

Problems with Bovine Fibrin Clots?

Hi I am using Fibrinogen (10mg/ml) and Thrombin (1000U/ml) to form fibrin clots. I found that after getting good cross linking initially the clots dissolve to liquid if left in incubator...

26 May 2016 9,416 4 View

When I added the interaction terms, the previously identified significant variables became insignificant?

I'm running a logistic regression test. On my first test, I've identified 6/7 significant explanatory variables. I then ran another logistic regression test with all the interaction terms. The...

05 April 2016 7,655 3 View

Anyone have a good methodology for Agar Gel for adding on top of a cell culture dish (and that allows you to pour/pipette as a thin layer)?

07 February 2016 7,189 1 View

For Fibrin Matrices is >2000 NIH/ml best - or can one use 600-2000NIH/ml in order to produce 1000U/ml concentration (Thrombin from Bovine Plasma)?

- used for making matrices to seed neonatal fibroblasts.

02 February 2016 8,338 1 View

What is the ultimate purpose of Ecology, and what do we hope to achieve in advancing the field?

01 February 2016 9,757 25 View

In what way can spirituality be experientially incorporated into Early Years Education in the UK?

21 May 2015 7,674 4 View

How can I find out the interaction of an osteoarthritis patient's DNA with Vitamin B complex?

I have osteoarthritis patient DNA. Now I want to study the interaction of the DNA with Vitamin B complex. What is the procedure to do so? What types of materials and methods are used to study this...

26 November 2014 1,981 2 View

How can I identify the subtypes of HLAB27 when I used Real-TM PCR which show qualitative results?

I used Real-TM PCR which shows qualitative analysis for identification of HLA B27 after DNA extraction from patient blood sample. The analysis show me whether it is positive or negative. But I...

12 October 2014 3,675 1 View

What is the process of calculating Rf factor from SDS-PAGE after protein extraction?

protein extraction

08 October 2014 7,028 2 View

What is the status of bread making and more bakery foods with the use of insect flour/powder?

Insects have been consumed by human diet since prehistoric times. At present, the idea of looking at insects as food has been getting traction worldwide, also in response to increasing food...

03 March 2021 6,223 5 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

How to remove DCU and HOBT from my reaction?

I am doing a acid and a chiral amino alcohol reaction using DCC and HOBT in DCM or THF? Can anyone suggest me how to remove DCU and HOBT from a reaction mixture??

28 February 2021 2,153 1 View

Is there a method of determining feed digestibility without the need to re-pellet the feed?

I am aiming to determine the ADC values of a commercial fish feed, but I do not have a steam pelleter or extruder available to me. Ideally, the pellets could be coated with some inert marker....

28 February 2021 7,967 3 View

What is the most common number of epitopes in an multi-epitope Vaccine?

hi everyone, I'm interested in the field of vaccine design specifically multi-epitope cancer vaccines , I want to know if there is a minimum and maximum number of epitopes we could use in a...

27 February 2021 3,882 3 View

Can Ethovision store the generated data and video recordings directly to NAS system?

The size of data generated by Ethovision is huge. Having NAS system for data storage seems to be a good option, I am wondering whether Ethovision can directly store the data to the NAS system...

27 February 2021 6,350 2 View

How to increase solubility of Poly acrylic acid in Dioxane solvent?

I am working with Polyacrylic acid (100.000Da) and instead of water, I need to use another solvent (dioxane) to dissolve PAA. However, because of the high molecular weight, it's quite hard to...

25 February 2021 2,225 5 View

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View