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

How can I classify convex, planar and concave sub class in the curvature map?

In landslide susceptibility mapping slope curvature is one major factor so we need to have the convex, planer, and concave surfaces in the slope curvature.

22 October 2020 7,982 2 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

Compare to prevalence before and after covid in population studies?

Dear researchers, I have a prevalence of some diet habit in relatively large narrow population of children 13 years old in 2019 and 2020. Logically they are different population. However, since...

10 January 2021 3,170 9 View

How to calculate age-standardized prevalence ratio with 95%CI?

I need to calculate the prevalence ratios to show the trend of prevalence of a drug group used by pregnant women over the years (2001-2018). I would like to use the year 2001 with age distribution...

05 January 2021 7,986 5 View

Prevalence of MSDs in India?

What is the range (%) of MSDs prevalence in the Indian population?

13 December 2020 5,758 3 View

What is the significance of Per-Patient and Per-Tooth analysis in epidemiology?

Research in prevalence usually provide results in per-tooth/object level and per-patient level. What is the significance of these two values and which is actually more important/accurate? What are...

10 December 2020 4,248 4 View

When i want to see the prevalence of sepsis; NEC and BPD in preterm ..which prevalence i will consider to sample size calculation?

Like three prevalance study design

07 December 2020 7,800 3 View

How to calculate sample size for the study of disease prevalence ?

Currently planning to work to find the prevalence of hydatidosis among domestic cattle in remote areas. The previous prevalence rate was unknown as no research was conducted yet in that area.

24 November 2020 9,598 4 View

Statistics on prevalence of methodological approaches in psychological research?

I am currently looking for data on psychological research. I am interested in -current and previous- prevalence of methodological approaches in psychological research (e. g. the proportion of...

15 November 2020 5,711 3 View

Can we standardize our data to conduct meta-analysis?

I have data with very small sample size with 84 participants and very larger sample size with 3,000,000 parcipants in order to pool the prevalence, can I standardize tha data before conducting...

11 November 2020 4,826 2 View

Is there a site about the authors of plants and when they were identified (in the world) ?

There are different opinions among Botanic scientists about the prevalence of species, their authors

09 November 2020 6,402 2 View

How to assess the correlation in a prevalence meta analysis?

Hello, we currently want to conduct a meta analysis on the prevalence of cytokine elevation and its correlation to the severity of the disease. I was able to ask about the statistical method for...

07 November 2020 534 2 View