Is there any effect of different colours of light (white, red, yellow, blue etc.) on the rate of photosynthesis? If yes, why?

Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....

02 March 2021 7,890 2 View

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 3 View

What kind of food stuff increase the potentiality of human brain?

There are different kinds of food stuffs which we intake daily according to our requirements. Carbohydrate, protein, fat, mineral, vitamin, water are mainly working for the growth and development...

01 March 2021 831 2 View

How to calculate the annealing temperature of a primer pair?

I have to amplify a gene and my primers just reached. The Tm for Forward primer is 64.2, and that of reverse primer is 65.5. Can some one suggest how to get the best annealing temperature? Thanks...

01 March 2021 360 7 View

Why does intensity drops as concentration increases?

Is there any reason for decrease in fluorescence emission intensity of HSA,BSA when increase the concentration ?

28 February 2021 3,653 4 View

Hi i want to ask that in order to find out LC 50 (96 hours) of particular toxin for fish. Should we keep the animals with food or without food?

if we expose the fish after acclimatization to particular toxin in order to find out LC 50 (96 hours).Should we keep the fish off feed or with feed for that duration. Some literature show that...

24 February 2021 357 2 View

Amorphous silica XRD peak at around 10 degree?

21 February 2021 3,417 5 View

How COVID-19 has affected mental health?

The pandemic has led to depression and anxiety and its negative effects shouldn't be ignored. However, it has also led some people to become more resilient! What do you think? Thank you.

21 February 2021 4,733 19 View

RDF calculation of water inside the Carbon nanotubes?

I am trying to calculate the rdf of water molecules present inside the Carbon nanotube. I tried to do the indexing first using gromacs tool gmx selection. But when it comes to calculating rdf, I...

17 February 2021 1,066 3 View

Is There are any idea to achieve H NMR signals for swollen compound ??

the samples are not completely soluble - just swelled the solvents that's mean the sample may be partially soluble any suggestion, please

16 February 2021 8,801 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

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

How best can Agricultural Innovation be structured to ensure adequate uptake and farmers adoption?

Technology adoption rates amongst small-scale farmers in the Global South (e.g. Africa) remain low, even when scientific evidence shows that a particular technology is beneficial.

28 December 2020 4,786 23 View

Do you hold (or have recently held) an academic position in a university located in the Global South (e.g., South Africa, Brazil, Mexico, India)?

I am working with colleagues on expanding a project focused on global citizenship education in the Global South. Question is: how educators at universities in the Global South prepare their...

27 December 2020 5,712 3 View