What is the paradoxical effect of VINASSE in terms of low pH (<4) and high EC (>50dS/m)? What is its impact on soil properties and crop growth?

What is the paradoxical effect of VINASSE in terms of low pH (50dS/m)? What is its impact on soil properties and crop growth?

15 February 2021 3,142 6 View

Retrospective cross-sectional study design?

I am using data from Demographic and Health Surveys conducted in the last 20 years. Can I name my study design a "Retrospective cros-sectional"?

01 October 2019 6,641 7 View

Is there any endevour that transform the manual CN-model in to computer application software?

Despite its importance in watershed hydrology and management, until now I know CN-model is a manually operated model. If there are some experiences I would like to hear from the group. Best

10 October 2018 5,085 3 View

FE or RE model selection?

Hello, I am regressing an equation specified as follows GDP per capita_it= bo + b1 Human capital_it + b2 Openness_it + .....+ u_it the regression is based on unbalanced panel data for 97...

04 October 2018 8,233 2 View

How can I determine minimum sample size for single arm cohort study?

Can any one tell how to determine minimum sample size in a prospective cohort study when the cohort is not divided into exposure and non exposure groups? Thank you!!!!!

04 September 2018 2,716 4 View

Is there any one who could say something about the mantel test (attached figure) on the correlation between genetic and geographic distance matrices?

29 June 2016 9,132 5 View

Why do we dilute the genomic DNA during PCR amplification?

18 November 2015 799 9 View

Is there anyone interested in collaborating in assessing the molecular diversity using SNP marker?

I have extracted DNA from a plant endemic to Ethiopia(Thymus schimperi). I want to Asses the molecular diversity using SNP marker. Any one interested in collaborating in this regard is highly...

01 November 2015 5,774 17 View

Authorship of the journal

I have a comfirmation letter of this Journal article from the joirnal editor! The autorship of the is mine! There was a mistake because of the same first and second name we had with Dr Kassahun...

01 January 1970 2,509 4 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

IF troubleshooting: looking at an intracellular protein that localizes to the cell's and how to reduce increase in signal due to cell ruffles?

I am currently trying to stain for PI3KBeta in MDA-MB-231 cells. My current issue is that 1) beta stains all over the cell and 2) there is an increase in signal at the edge of the cell and this...

24 February 2021 8,582 1 View

Interpretation of a fluorescence Emission spectrum ?

Hello, i work with a spectrometer which only render the fluorescence emission spectrum. Until now i just found how to interpret an exitation- and emission spectrum together to generate deeper...

20 February 2021 1,291 3 View

Are cloud points able to identify tree species?

Hello Dears My goal is to classify dense forest tree species using drone images. Is it possible to classify dense cloud points? If yes, in what way and in what software? Thankful

15 February 2021 3,475 3 View

Receiving very less number of hits and events in acoustic emission tests?

I am doing a three point bend test with concrete specimen of dimension 280mm*90mm*90mm. I am putting 2 sensors near the notch with 3cms away from both the sides. the experiment ran for 20 mins but...

13 February 2021 2,990 1 View

Has anyone used Whatman FTA Plant Saver cards for collection of fungal DNA?

I would like to barcode fungal caps from the field for two main research goals (1) molecular iD of the fungal specimen and (2) to identify any invertebrate DNA within the cap using CO1...

08 February 2021 4,486 1 View

How can I multiply values with standard distribution and with triangular distribution?

I am calculating emissions considering the uncertainty of the data to do Monte Carlo simulation. Some variables such as yields have normal, lognormal or even uniform distributions. These must be...

03 February 2021 6,318 5 View

How do I analyse a Photoluminescence Spectrum ?

I have a few questions related to PL (images attached for same material by 2 methods), It would be great to get some help. 1. What is the physical meaning of highly intense PL? Does this mean...

02 February 2021 1,791 3 View

What is the harmless way of cutting epoxy filled nanocomposite ?

I want to cut epoxy filled nanocomposite for FE-SEM analysis. What is the best way to cut it without resulting in any cracks or change in position or alignment of the particle reinforcement ? Also...

28 January 2021 7,084 5 View

Where is the active point of VCSEL?

I am now working on the coupling between vertical-cavity surface-emission laser(VCSEL) and waveguide. However, the window design for laser emission is larger than the waist of Gaussian beam...

27 January 2021 8,318 1 View