What effect size should i use for a meta-analysis when study data violate normality assumptions?

I'm looking for advice regarding what effect size to use for meta-analysis. Our question is whether the number of individuals in a group affects the per-capita productivity of that group. Does...

10 February 2021 5,510 8 View

What are the conflicts between EIA and environmental engineers and lawyers?

Environmental Impact Assessment (EIA) does not live up to the expectation of environmental lawyers and environmental engineers. In your own opinion, how can the EIA process therefore be made more...

03 February 2021 1,329 6 View

Multicloning in pRMC2?

Hi all, I want to express several genes in S.aureus by using the pRMC2 expression vector. I want to try to subclone some genes already cloned into pRMC2 (and their own tetO promoter) and put them...

01 February 2021 5,108 3 View

How to convert a domestic microwave assisted synthesis for dedicated instrumentation?

Hello, I just dived into the topic of microwave assisted synthesis and found a literature I would like to reproduce. The problem is in the literature, a domestic microwave oven is used which we...

27 January 2021 4,788 4 View

Can you give me an example of a faulty or egregious environmental claim that is NOT related to climate change?

I am doing lesson plans and am looking for examples of environmental claims that do not stand up to close scrutiny. There are more than enough examples of this related to climate change...so no...

18 January 2021 4,661 7 View

How do you improve retroviral expression from PG13 cells?

I have been trying to express a gene (GFP) in a retroviral system by transfecting human Phoenix-ECO cells, and transducing murine PG13 cells with the supernatant. I then sort GFP-positive PG13...

18 January 2021 476 1 View

Numerical taxonomy with SPSS?

Hi everyone, I was wondering about the possibilities of performing numerical taxonomy with SPSS software. I would be very thankful to recieve advice!! For now I have been reading about...

12 January 2021 5,549 3 View

How to retrieve 30 m Resolution LAI from Landsat data by combining MODIS training dataset using SVR?

I am currently working on a personal project and one of the objectives is retrieving Leaf Area Index from Landsat data using MODIS LAI product and Surface Reflectance as training data. Can someone...

30 November 2020 5,322 2 View

How to determine the wavelength of an organic molecule ?

Hi everyone, I synthesized a molecule which is the vanillinacetone via the aldol condensation of vanilla and acetone in excess. I saw that the molecule has double bonds in it, and I would like to...

29 November 2020 6,630 7 View

Adding xanthan gum to aid particle suspension during laser particle size analysis?

Can you add a thickener or viscosity modifier such as xanthan gum or carboxymethyl cellulose into your sample when performing laser particle size analysis to help keep particulate samples in...

06 November 2020 6,790 7 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

Buffer Exchange using column packed with sephadex G-25 effect on protein concentration?

Hello, If i am doing a buffer exchange for an antibody of 1mg/mL, does the elution lose protein in the process of buffer exchange? For example, if i flow through 500 uL of 1mg/mL sample, and...

03 March 2021 6,299 3 View

How two melting peaks in DSC of polypropylene can be merged into one crystallization peak?

The figure shows DSC cooling (blue) and 2nd heating (green) curves (step: 10 K/min) for a commercial sample supplied as Atactic Polypropylene (APP). The heating curve illustrates two major...

03 March 2021 5,857 3 View

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03 March 2021 5,360 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

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

How to polymerize TEOS?

I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...

02 March 2021 1,404 6 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View