Do you know good and user-friendly programs to measure plant quantitative traits?

For my research i will need to measure plant quantitative traits (especially leaves area and roots length, but would be nice to add some more information). I recently discovered...

01 March 2021 5,035 2 View

How Healthcare Personnel help frontline workers cope with stress and mental burden during COVID-19?

Which methods does they suggest to ease the burden and stress as a teamwork?

09 December 2020 9,605 7 View

Which are the drawbacks of using a medical CT for scanning fossils?

I am in the need of scanning some fossils for analyzing their inner structure. Unfortunately I don't have access to a proper CT or micro-CT of industrial use that suits nicely fossils and neither...

16 November 2020 1,748 6 View

Why appear two bands one of my expected protein and another around 17kDa?

i have two bands in my western blot, i used histag antibody and HRP as secondary antibodie, the samples are recombinant proteins in ecoli, someone toldme that extra band is an heterogeneus...

10 June 2019 5,591 3 View

Does Promega's Passive Lysis 5X Buffer contains anti-protease and anti-phosphatase components?

Hi everyone, Do you know if the Passive Lysis 5X Buffer that Promega produce has these components? I always use it to lysate transfected cells and measure lucierase activity and now I'm wondering...

03 September 2018 1,322 1 View

How to set numerical data in quartiles and analyze differences of other variables between them on SPSS?

27 June 2017 6,177 2 View

Can Inferential Statistics be carried out in a Retrospective Study?

In a retrospective study based on reviewing clinical files, should I run inferential statistical tests even if no power calculation could be made to determine the required sample size before the...

01 June 2017 8,880 3 View

QRTPCR amplification of target with low GC content?

Hey everyone. I have a question. I'm doing the in vitro silencing of a small RNA of 79 bp (a snoRNA specifically), and I need to design a protocol for the detection of the known-down of this RNA....

26 December 2016 6,061 2 View

Can anybody familiar with "distance-based Moran's eigenvector map analysis" provide advice on how to do it? Also any suggestion for software on this?

Recently, studies have demonstrated that the use of Mantel test is not corrent when detecting spatial structure or spatial correlation between two multivariable data sets (community structure and...

30 May 2016 9,790 7 View

I have the next code in MATLAB and I need to parallelize it, is a Turing criteria about the Schnakenberg model?

I have the next code in MATLAB and I have a GPU and I would love to parallelize it in order to get faster results and I justo don't know how to visualize it in real time like a movie. Is there...

27 December 2015 1,126 3 View

What are some of the research gaps in machine learning and artificial intelligence in africa?

i would to know some of the research gaps in the artificial intelligence field in most african countries.

03 March 2021 6,145 3 View

What is the correct common name for Hydrochoerus hydrochaeris?

There are two extant species of Hydrochoerus: Hydrochoerus isthmius, the lesser or Panamanian capybara, and the genotype species H. hydrochaeris. The latter is the more common species of capybara,...

11 February 2021 3,494 14 View

Does Location Map of Informal Settlements in South Africa exist?

I urgently need a map that shows the point locations of informal settlements in South Africa. I am currently working on a study that seeks to relate protests location to the location of informal...

02 February 2021 4,113 7 View

Is there an alternative to PGLS that considers phylogenetic signal when calculating the estimated value?

I have been working on a study trying to estimate body mass in mammals using a skeletal proxy in R. My dataset has high phylogenetic signal (Pagel's Lambda = 0.9) and I am interested in removing...

26 January 2021 6,997 3 View

Kindly suggest sources for covid 19 data over Africa ?

Kindly suggest sources for covid 19 data for all countries of Africa included different provinces if available? Thanks in advance

17 January 2021 6,810 7 View

Johnson et al., 2006 Geology of South Africa?

I am wondering if there is a digital (PDF) version of this book available or if anyone is willing to share this work. It is no longer available from GSSA (Geo Soc. S. Afr) nor does my library hold...

13 January 2021 5,571 2 View

Will the new vaccines be effective against the new SARS-Cov2 strain from the UK?

Two new variants of the coronavirus were detected in the U.K. and have now been followed to other parts of the world including South Africa and North America. The South African variant could be...

05 January 2021 499 4 View

How can I open a SXV4 file (SuperCROSS) in SPSS, R or STATA?

Hello everyone, I received some data from Statistics South Africa in an SXV4 format (SuperCROSS) and would like to open it in SPSS (or a similar programme if need be). I have tried opening it...

05 January 2021 2,463 4 View

No title

What are the technicalities involved ? What are the reasons ? Can we share some facts on this

31 December 2020 5,698 5 View

Don't we think use of non-functional drugs in different Nations led to genome re-engineering by Sarscov-2 virus to survive,& turns to variants ?

Re-engineering of genome my Sarscov-2 and emergence of variants now in UK, USA, South Africa, Nigeria and now upcoming in other countries.. What are the key facts and reasons ? Thank you...

31 December 2020 745 4 View