Which variables can be used to increase/decrease the grain size of czochralski-grown polycrystalline silicon?

Which variables (such as pull speed, melt temperature, annealing temperature/duration, cooling rate, etc.) affect the grain size of czochralski-grown polycrystalline silicon? In what direction...

10 January 2021 2,204 6 View

Can somebody recommend me a decent textbook to learn more about signaling pathways and their mechanistic principles in general?

I studied biochemistry and molecular biology in my bachelors and Immunology in my masters. I never came across a suitable course for general signaling pathways and principles. My interest is...

13 December 2020 5,690 5 View

Do you have any application suggestion for automated data collection for surveys?

I'm planning to do survey for about more than 700 people online. Is there has any software you can suggest to collect the data? Thanks

05 October 2020 8,079 7 View

Where can I obtain Streptomyces lividans strains for enzyme production?

I am having trouble figuring out where to obtain Streptomyces lividans strains that are commonly used for enzyme production. Specifically I am searching for the following strains: S. lividans...

25 May 2020 6,205 3 View

What devices are available for percutaneous pH monitoring?

I'm interested in percutaneously measuring local changes in tissue pH in vivo with and without a therapy. What devices are available for percutaneous pH monitoring in large animals?

20 March 2020 2,731 3 View

How to genotype between wild-type and heterozygous mutant zebrafish with only 1 bp difference?

22 January 2020 7,703 4 View

What is the best way to approach building a custom polypeptide?

I am trying to build a custom poly peptide that is ~50 amino acids in length, and it will ideally have a charge of ~+4 at pH 7. I can get the positively charged attributes from incorporating a...

08 December 2019 3,597 1 View

Whole Blood Over Recovering Compared to Blood Plasma?

My Immunoassay is giving higher analyte concentrations for the same sample before plasma separation vs after plasma separation. For instance, I run my assay with whole blood, and I get a reading,...

10 July 2019 7,391 3 View

How can I perform a meta-analysis of incidence rates (X events per 100,000 person years) with 95% CI without a comparison group?

I'm performing a meta-analysis, attempting to produce a summary statistic for incidence rate of events of sudden death per 100,000 person years with 95% CI, and eventual subgroup analysis. I am...

11 June 2019 5,867 5 View

Is there a limit to the amount of Polyvinyl Butyral (PVB) that can be dissolved into ethanol?

Is there a maximum solubility level for ethanol?

11 February 2019 2,793 1 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

How to accurately quantify chitin?

Hi all, I have been working on the quantification of chitin in insect samples and feed for a while but I can notice that the quantification methods (e.g. exposure to HCl, NaOH, and weighing sample...

01 March 2021 1,843 2 View

Please help in identification of this insect?

This insect is minute in size around 1 mm and not clearly visible with naked eye.

22 February 2021 5,907 11 View

Purification of proteins from baculovirus-infected insect cells?

18 February 2021 6,665 6 View

Does anybody know the ways of homogeneous ripening of Mung bean crop?

Some crops (Mung bean) are matured at different times i.e., harvested at several times that's why the labour cost of the farmer is high. So, could you please, is there any ways or chemicals are...

12 February 2021 294 4 View

Extraction of DNA from insect samples conserved in silica gel?

Hi everybody, can anybody suggest how to extract DNA from insect samples conserved in silica gel (in my case, mosquitoes)? Does anybody know a commericial kit which does that or a particular...

10 February 2021 3,392 4 View

How do I prepare and store insect samples for JH measurements?

I need to preserve termite samples for future quantification of juvenile hormone in their bodies. Or extract the Juvenile Hormone and keep that samples stored for future quantification. I may need...

09 February 2021 1,995 1 View

Working with insect primary cells in cell medium and in saline solution?

I work with insect primary cells, which I let grow in TC100 insect medium. For fluorescence measurements I have to discard medium (because of its fluorescence properties) and give a saline...

28 January 2021 3,867 1 View

Can anyone help me to separate my phenolic compound in TLC with any new solvent system ?

My Compound is Leaf powdered Methanolic extract which is showing good phenolic compounds upon dipping in FeCl3. -My problem is phenolic compounds are not eluting with any common solvent system.

22 January 2021 4,693 7 View

How to extract a single stranded DNA from a double stranded DNA sample isolated from stem borer(rice affecting insect) ?

How to extract a single-stranded DNA from a double-stranded DNA sample isolated from stem borer(rice affecting insect)? As I need to amplify ss Dna using a COX-1 marker having primer sequence as...

22 January 2021 3,424 3 View