By which mechanism does potassium hyrdoxide works as an activator in the preparation of activated carbon?

Activated carbon is prepared from biomass using KOH as the activating agent. What is the possible reaction between KOH and the biomass?

14 February 2021 8,095 4 View

Should studies published in predatory journals be included in systematc reviews?

I am conducting a systematic review of intervention, and i observed that one included study could determine the statistical significance of the final meta-analysis. Problem is, that article has...

13 April 2020 922 9 View

OCR system for phonetic (IPA) symbols?

I need to convert manually annotated IPA transcriptions into digital format. Does anybody know of an OCR system able to recognise IPA symbols (even just for English phonemes)?

25 March 2020 5,982 0 View

Is it possible to read the deformation field file produced by SPM during normalization?

If (x,y,z) are the voxel coordinates of a point of the brain scan before normalization, what is its position after applying the deformation field generated during the normalization?

19 February 2020 10,004 3 View

Bibliography on the effect of soils on nectar and sap?

10 September 2019 8,922 4 View

What is the correct phenol red permeability through Caco2 monolayer?

Dear all, I am performing Caco2 permeability experiments using transwell inserts and I am using phenol red permeability assay to verify the monolayer integrity. What is the maximum phenol red...

06 March 2019 6,726 6 View

How much solvent (ethanol) would I need to extract capsaicin (and other capsaicinoids) from siling haba?

Siling haba is a variation of Capsicum annuum var longum. The capsaicin extracted will be tested against aphids to test its insecticidal properties. Someone suggested that I should use 5ml/g or 2g...

12 February 2019 1,373 3 View

How much ethanol do I need in extracting capsaicin from red bell peppers?

The capsaicin recovered will be tested against aphids.

04 February 2019 5,811 5 View

CVD adhesion on silicon substrates?

Dear all, I am currently trying to uniformly deposit organic semiconductor via thermal CVD at low pressure (around 10 Torr), but I sometimes get either no deposition or not homogeneous deposition...

21 October 2018 3,185 4 View

Melting curves with the same shoulders but with different primers, possible reasons??

I am getting crazy about this. I am having less than perfect melting curves, with different primers. The funny thing is that while primers give a main peak at different temperatures, as it is to...

20 August 2018 7,029 13 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

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

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

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

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View