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Hi, I have several doubts about one paper (Systematic Literature Review) that was rejected. The main topic is Single-Board Computers in engineering education during the period 2010-2020. The...

01 March 2021 9,015 3 View

How to find the right number of integration points in second order 3d finite elements?

I am familiar with finite element simulations and numerical schemes like the Gauss Legendre quadrature. I also know that the Gauss integration yields exact values for polynomials up to degree 2n-1...

27 February 2021 6,818 3 View

Must a control group to be in the same semester that a experimental group for a study in education?

Hi everyone, I'm researching about mobile learning in higher education. Due to the small number of the students in the semesters, I cannot have a experimental and control group together. I'm...

22 February 2021 3,653 11 View

What is the best way to isolate Hydrolysable tannins on Sephadex column?

I am currently preparing to isolate polyphenolics (Hydrolysable tannins) from aqueous extract of a plant. I want to set up a small sephadex column to guide the major isolation on a laerge...

18 February 2021 1,455 3 View

How do we assess information security in a public organisation?

Dear all, I am wondering if anyone can point me to studies discussing non-technical measurement tools to assess information security in a public organisation. I am planning to explore the...

23 November 2020 3,497 6 View

Any suggestions for the specs (specifications) of a laptop/desktop computer that can be used for Molecular Docking Tools/Software?

I'm a researcher that will be using USCF Chimera, Autodock, and Autodock Vina tools. I've been using an Intel i5 8th Gen processor (i5-8250U) lenovo E480 thinkpad with 8GB of RAM, and I'm planning...

18 November 2020 3,578 3 View

How do you design heterogeneity spacers for primers in amplicon metagenomic studies?

Adding heterogeneity spacers to primers used for Illumina based amplicon studies has proven to improve read quality by increasing bp diversity on the flow cell during sequencing. I have seen two...

01 November 2020 9,071 3 View

How do I collect reviews in several languages from TripAdvisor?

I have been trying to extract data from TripAdvisor for my Master thesis. However, I can get only the english reviews. The reviews in other languages I can not extract. If someone could help,...

10 October 2020 6,382 2 View

How useful would a Predictive CAD systems be?

Hi, I wondered if you could spare a few minutes to watch this short video of a prototype Predictive CAD system (created by our research project) and answer some questions afterwards? We are...

06 October 2020 1,626 3 View

In linear regression, can I reverse-engineer r-squared if I know sample size, beta, standard error, and the p-value?

I'm doing a literature review, and most of the data I need come from linear regression analyses. There's a paper that has solid data, but it doesn't report r-squared, which is the metric I need....

15 September 2020 208 3 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 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

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

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01 March 2021 3,905 5 View

What test should I use to compare two or three means, if data is not normally distributed but sample size is > 30 in each group?

I personally feel this as a most confusing question. As per my understanding, if sample size is > 30, and sample is skewed, we can still use paramteric approach, as it will follow Z...

01 March 2021 1,587 6 View

Samples to study circular dichroism (chirality)?

I want to build a low-cost polarimeter to study circular dichroism (chirality). What type of samples can I use? I am looking for samples that can be found outside the laboratory.

01 March 2021 9,101 3 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

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 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