How many ratio of simplicia powder : water I should add to make the infusion concentration 100%?

I am doing research to test antibacterial activity using plant leaves that I have mashed. How many ratio I should add between the simplicia and water to get 100% concentration in infusion technique?

06 December 2020 1,010 6 View

How much (sea)salt is needed to stop the turnover of the cold fresh water melting from the "ice"-poles?

The cold fresh water from the poles is going to block the warm water (Gulf) stream (heat transport). There is a theory that salt in water can conduct electricity. So it could start some electric...

19 September 2020 7,712 2 View

Does Covid-19 effect certain parts of the brain?

Dear Colleagues, I like to know if Covid-19 effects the brain in general, depending on person's constitution or has Covid-19 a 'taste' for certain brain areas? Thank you for answering Kind...

27 July 2020 7,159 20 View

Human mesenchymal stem cell differentiation issue?

hello, i got a problem in the adipogenesis. The human MSCs were differentiated into adipocte. 10days later, the mutant MSCs and the WT MSCs were red oil stained and QPCR test. But there's a...

13 June 2020 5,169 3 View

Does plastic waste as fiber reinforcement added into NWC will increase/decrease modulus of elasticity and compressive strength of concrete?

I was trying to gather any research which related to my question

10 June 2020 6,498 1 View

RNA extraction methods for virus w/o centrifuge?

20 April 2020 4,990 3 View

How to calculate drug compliance when topical administration?

Hi everyone, I am currently design an experiment about compare patients' drug compliance. The drug is used topically twice daily on the wound. We would provide diary card for subject to note the...

19 February 2020 6,891 1 View

Can I use one-way ANOVAs prior to multi-factorial ANOVA to reduce number of predictors?

My current experimental design involves several factors (e.g. Treatment, Enclosure, Night and Round), and involving all of them in a multi-factorial ANOVA would result in a large number of...

08 September 2019 6,913 2 View

Can preserved plant material still be processed for SEM analysis?

Hi all. I have root samples that are already preserved in 50% EtOH for 3 months. Can these still be further processed for SEM analysis? My samples are collected abroad and have to be in EtOH for...

03 September 2019 4,754 7 View

Proper imputation method for my missing data pattern?

Dear all, I am working with my resident survey data (n=8356) including 59 items, most of which are ordinal variables scored from 1 to 7, and others are continuous variables (e.g., age, residency...

24 July 2019 9,669 12 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

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

Dear all, I was wondering if anyone knows whether MGLtools and Autodock can run on Mac OS?

I have tried to download the 64-bit version of MGLtools however, as many times as I have downloaded and uninstall the programs, an error arises that the app needs to be updated. Thank you.

03 March 2021 5,997 2 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

I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 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

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 View