I have a balanced panel data of 12 countries and nine indicators. which methodology would give better results and what is the rationale of using it?

I have a balanced panel data of 12 countries (5 countries are developing and rest are advanced economies) and nine indicators. which methodology would give better results and what is the rationale...

03 September 2020 5,417 2 View

Other than the analytical scoring, what is the best way to make the scoring of EFL students' writing performance more objective?

I am working on a study in which I need to adequately evaluate my EFL students' writing performance.

10 December 2018 2,769 49 View

How do I find the ''dopant percentage (at.%)'' during the manufacturing of doped ZnO nanoparticles by sol-Gel Process??

I want developed Ag-doped-ZnO nanoparticles by sol-gel process with different at% (0.1,0.2,0.3) of dopant material so, how can I find this at% of dopant material ?? Thank You.... Regards.

01 December 2018 7,263 3 View

What should be the control variable?

12 November 2018 8,319 2 View

What are the potential health risks due to massive distributed antenna systems in our Neighborhoods? any tips for protection ?

A huge number of antennas (transmitters and recievers devices) systems popping up over the bulding in our neighborhoods, for the internet and communication services. what is the possible risk of...

27 September 2018 7,196 9 View

What precautions should be used when pouring concrete in hot weather ?

Placing Concrete in Hot Weather Caution needs to be applied when placing concrete in hot weather what are they?

07 July 2018 9,165 13 View

What do you suggest of the following to increase the punching shear of a RC slab with the reason?

1_ increasing the slab thickness 2- using drop panel 3- using shear reinforcement 4- increasing the concrete compressive strength:

07 July 2018 5,327 10 View

Do you have training courses to make models for my thesis on climate change and food security in Senegal?

Currently I am a student in Master II at the Faculty of Economics and Management of the University Cheikh Anta Diop Dakar.I finish this higher level with a dissertation whose theme is "the impacts...

01 June 2018 8,422 4 View

What is the best method to extract RNA (including miRNA) from plasma if it is needed for NGS RNA sequencing?

Dear all, Few years ago, I used miRCURY Biofluids from Exiqon for extracting RNA from plasma for detecting miRNA by qPCR. However, this product is currently discontinued since Exiqon is now...

23 May 2018 6,880 4 View

Can you freeze whole blood, and then subsequently isolate PBMCs?

Hi, we are working in a very resource limited setting where the lab resources on site are very basic. We are doing serial blood sampling for drug concentrations, which includes overnight samples....

08 May 2018 746 11 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 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

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View