How to describe exposure variables?

Hello, I would like to review the literature on the intrinsic and extrinsic risks to women that can negatively influence their childbirth experience. I have a difficulty in developing my research...

01 December 2020 5,781 3 View

How to find compounds that are similar to others in term of structure and activity?

Dear all, I Have found in silico two compounds that are interesting for me, one is spermidine (a metabolite) and another one is negamycin. Negamycin has apparently an effect on my cellular models...

20 October 2020 8,394 3 View

A good reference for polyphasic identification of Acremonium-like species?

I am wondering if there is a good book or web reference for identification of species from the genus Acremonium and its likes.

31 August 2020 1,878 2 View

Checking the independent errors assumption for logistic regression in SPSS?

I am investigating the effect of certain cognitions/attitudes on sexual recidivism. Sexual recidivism is the binary outcome variable (0 = no / 1 = yes). Originally the sex offenders could score 0...

07 May 2019 7,295 6 View

No title

21 October 2018 1,995 1 View

Differences between the files "rna_from_genomic" and "rna" ?

Hi ! I was wondering what were the differences between those three files : [https://www.ncbi.nlm.nih.gov/genome/doc/ftpfaq/] *_rna.fna.gz : FASTA format of accessioned RNA products annotated on...

24 December 2017 3,117 2 View

Is it possible to enrich/selectively isolate poly-dT+ cDNA?

Is it possible to enrich/selectively isolate poly-dT+ cDNA from a sample of cDNA which was reverse transcribed from total RNA using a mix of oligo-dT and random primers?

29 January 2017 9,080 5 View

Interference in SDS-PAGE silver staining of peanut extract?

I'm currently working on the optimization of the trypsin digestion protocol (duration and trypsin concentration) of peanut extracts (with Tris and Urea). I use SDS PAGE (12% BioRad) to check the...

23 November 2016 5,534 4 View

Abaqus: General contact and coupled thermal-electrical-structural step N/A?

I'm building a vibrothermography model with a coupled electro-thermal-mechanical step, where a piezoelectric actuator generates ultrasonic waves that are transmitted to a material, where the...

24 August 2016 692 2 View

What to do with G09 when displacement is high whereas force is low and predicted change in energy low?

Dear All, I optimize a structure with M06 / 6-311+g(d,p). After a lot of optimisation step , the predicted energy is low -1.7 D-07 and forces very low. However the calculation do not converge as...

28 October 2015 2,592 6 View

How UAV or drone can be beneficial to better estimate crop yield?

As we know, crop yield estimation has been done traditionally with farmer's expert knowledge, deductive sampling in representative areas, and remote sensing with satellite imagery. Farmer's Expert...

01 March 2021 3,468 3 View

Where to find data on trees in tropical agroforestry?

Hi, I'm looking for data (mainly related to management: growth rate, canopy size, soil and climate preferences, etc.) about tropical trees used in tropical agroforestry. Have you ever heard about...

28 February 2021 7,356 8 View

Analysis of CRD two factor using R studio ?

Hello everyone. I have conducted the research on post harvest longevity of tomato crop using plastic packaging and different doses of chemicals as two different factors. The design of experiment I...

28 February 2021 8,189 3 View

How to compare 2 samples recruited with different sampling methods?

If I want to compare characteristics of 2 groups of patients, one group is recruited from a random sample of the general public while another group is from a sample with a fixed gender (male to...

26 February 2021 3,526 3 View

Where i will get the Desmodium and Napier grass seeds?

26 February 2021 975 4 View

Using the Pfaffl method: Is it possible that the ratio of the calibrator does not equal 1?

Hi all, I have a question regarding calculations using the Pfaffl method. I have 3 groups per experiment: 1 control group (calibrator) and 2 treatment groups with 6 to 7 biological repeats per...

19 February 2021 8,351 2 View

What are the LAB methodologies (procedures, equipment etc) for CO2 enrichment experiments to study crop responses?

I am doing a proposal for a research entitled 'GRAIN YIELD AND QUALITY RESPONSES OF WHEAT GENOTYPES UNDER CO2 ENRICHMENT AND EXTREME EVENTS' I will be using climate chamber and I would like to...

18 February 2021 6,494 4 View

How to find if Qualitative and Quantitative (discrete) variables have a relation?

I'm going to do a brief research about the dependance between the number of cases of Covid-19 and sex( male/female) . One of the requierements is to use inferential statistics to test the...

18 February 2021 7,092 11 View

Convert unit from OR per SD to 1mm for meta analysis?

I would like to ask if someone could help me to convert unit from OR per SD to 1mm for meta analysis. for example The age-adjusted OR per SD cIMT for MMSE

16 February 2021 6,476 2 View

Can bio-decomposer be a successful alternative to reduce residue burning?

To maintain the proper crop plan most of the times there is not enough time to make the field ready for the next crop. In this particular context , can bio-decompser be a solution? What about...

16 February 2021 7,068 24 View