No title

02 January 2021 7,172 4 View

Does anyone know how to get a scopus or sciencedirect report of the trends in recent years on a specific research topic?

I am trying to obtain a trend report on a specific issue at your instigation in recent years

28 December 2020 848 2 View

Are open source PCR primers and cellular reagents of value to locating COVID infections on the global map?

A concern with commercial COVID-19 diagnostic test kits is that they tend to be expensive, and may be difficult to access in places far away from the companies that produce them. In order to...

10 December 2020 5,965 2 View

Has anyone made human RNAse P cDNA PCR primers?

I wonder if the positive control primers and probes authorized by the US CDC for amplifying human RNAse P are specific to the RNAse P chromosomal DNA. My thought process is that if primers are...

01 December 2020 2,364 2 View

What are some experiments that can be done with a microbiology lab to help deal with the covid pandemic?

I run a lab that is equipped with basic microbiology and molecular biology equipment - pipettes, centrifuge tubes, positive pressure flow hood, qPCR machine, vortex, centrifuge, spectrophotometer....

30 November 2020 2,517 10 View

Which statistical analysis could be used in stomach content data?

Hi everybody, I'm looking at stomach content of a damselfish, to analyze the diet in two sites. I'm going to use the numerical proportion of the prey items that I found in each stomach. In each...

17 November 2020 4,967 3 View

What order is the change in the shift or intensity of a XRD pattern when there is an impurity in the crystal lattice?

I doped a fluoride perovskite LiMgF3 with different concentrations of Cr (0.25%mol and 0.5%mol). The XRD pattern of LiMgF3 shows the highest peak at 38.9847, but LiMgF3:Cr 0.25%mol shows this peak...

06 July 2020 5,630 4 View

What is a simple and affordable method for protein purification from cell lysate?

The proteins need to be enzymatically active, planning to use Taq. Polymerase for PCR reactions. I am looking to create a protein extract that can be used for diagnostic PCR. So the protein has to...

10 May 2020 7,132 12 View

Statistical analysis of hunting sequence, animal behaviour or ethogram?

Hi Everyone, I am working on analyzing a hunting sequences from different animals. I have written down each behaviour per second and have them as categorical data in order of appearance. An...

28 April 2020 4,007 7 View

Why does the ELISA for COVID19 that the UK just bought many of not work?

Has anyone analyzed exactly what part of the new ELISA test the UK gov't bought doesn't work? Is the antibody not specific enough?

06 April 2020 7,189 4 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 are the LAB methodologies (procedures, equipment etc) for CO2 enrichment experiments to study crop responses?

I am doing a proposal for a research entitled 'GRAIN YIELD AND QUALITY RESPONSES OF WHEAT GENOTYPES UNDER CO2 ENRICHMENT AND EXTREME EVENTS' I will be using climate chamber and I would like to...

18 February 2021 6,494 4 View

What is the critical deficiency limit in soil for Mn in wheat crop ? in terms of DTPA extractable Mn?

critical range for Mn in soils is 2.5-4.5 ppm for all plants as an average, but what is the exact amount of DTPA extractable Mn in soil for wheat crop

04 February 2021 4,008 4 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

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