How to regenerate PES Membrane of centrifugal filtration tubes having 5 and 50kDa MWCO?

Dear Collegues, I am using a relevant number of centrifugal filtration tubes made of polyethersulfone (PES) with 2 different MWCO, 5 and 50kDa for separation of protein in milk. They are quite...

15 December 2020 7,951 3 View

How to sterilise maize seeds in the lab?

What is the most effective protocol to sterilise maize seeds in the lab? We have tried few common procedures but with no luck (still get fungus contamination on agar plates): 1)10% sodium...

19 November 2020 602 15 View

How I can simulate solid state sintering?

I want to simulate solid state sintering of metal powder, conducted under vacuum. I am interested in the initial stage of sintering, does not matter to reach full density. Do you know any model or...

24 September 2020 7,383 5 View

Is there a good library to perform Petri net simulation in python?

Hello, I have designed several petri nets for my research. I am wondering how can I simulate them and gather system performance measure (eg sojourn times, throughput) using python? Is there a...

11 May 2020 2,120 2 View

What are the relevant economic, technical and environmental aspects of the recycling of batteries for automotive applicantions?

A paper review. Could you please provide some researches about the topic?

28 April 2020 946 5 View

Difference between photovoltaic plant short-circuit current and synchronus generator short-circuit current in AC transmission system?

Hello, I understand that photovoltaic plants are able to disconnect very quickly if there is a fault in the grid (cause power electronics), while synchronus generators cant disconnect due to his...

30 October 2019 8,457 5 View

Psychic salience has been studied in his correlation with psychosis.What about psychotropic drugs effect?

Some drugs seems to raise the feeling of psychic salience while others dont.

20 September 2018 3,556 1 View

In psychotic patients, psychotic features of the speech can vary their gravity during an interview. What do you think can be the influential factors?

In my view, these factors can be: the emotional meaning of the theme for the patient, anxious sympyoms caused by the situation or the interviewer, a relatedness feeling with the interviewer, a...

03 September 2018 303 3 View

Which assay to detect human serum levels of anti-troponin-I, anti-troponin-T and anti-tropomyosin antibodies?

We are currently using indirect ELISA to measure human serum levels of anti-troponin-I, anti-troponin-T and anti-tropomyosin antibodies? This indirect ELISA is not sensitive enough for our...

23 May 2018 6,546 2 View

Ksp in aprotic polar solvent , any idea?

11 May 2018 2,772 2 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

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 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