Good sites to recruit survey participants on a grad school student budget?

Any good recommendations for participant recruitment for online surveys on a grad school student budget?

02 March 2021 4,293 4 View

Is there a way to automatically gather surface area from a 3D model based on color/texture?

I have been constructing 3D models of large corals and I was wondering if there is a software that I can use to gather the area of live tissue vs dead/disease? I am aware there is a way by tracing...

17 December 2020 6,991 1 View

Randomizing Survey Questions?

I'm currently developing my methodology for an upcoming research project and have a question about the materials I plan on using. I want to incorporate a questionnaire on conspiracy theories and...

16 October 2020 5,232 3 View

How do you deal with multiple submissions to a survey from the same respondent?

Hello, I am a graduate student and I am working on cleaning survey data. When cleaning the data I realized that a few respondents completed the survey twice. I reviewed the survey data to see if...

04 July 2020 5,688 8 View

What is the appropriate statistical analysis for my study?

17 June 2020 4,681 4 View

Why do you not include geothermal science as a Research Area?

You provide a list of research topics including Geology, Geochemistry and Geophysics. However, many workers in the geothermal field specialise in the integration of the information from the above...

08 June 2020 9,616 4 View

Is there a recommended article on RAMAN Spectroscopy and/or FTIR that also works as a guide?

Fellow scientists, I'd like to know if a test solution contains certain leachates, meaning that an extraction method I am developing works. Much appreciated beforehand.

13 January 2020 5,249 3 View

NOAA Hourly Precipitation Data Missing Post 2014?

Hello all, I'm trying to test out a predictive model but I'm having a very hard time trying to find hourly precipitation data. I've looked at NOAA and on the new data repository (NCDC) but I...

28 October 2019 4,757 5 View

Digesting bioplastcs (PLA)?

I am carrying an experiment on which I chronically feed PLA particles to ascidians to check if they accumulate the material or are capable of digesting it. I am also trying with common PP and PET...

10 May 2019 9,370 5 View

Do you know some program or app that allows me to build graphics in macbook air?

Hi everyone. Can somebody help me? I am looking for some program or app that allows me to build graphics of DRX, Raman, EIS, IR data, among others in my macbook air. When I had my windows PC it...

23 March 2019 3,216 2 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

How can I publish a manuscript in free or low cost journal with good H-Index?

Dear all I am going to publish my manuscript which is from my thesis in a good H-Index journal but I found them very expensive(I don't have financial support) based on the exchange currency of my...

28 February 2021 7,800 6 View

Is there any published or unpublished statistics on dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, US, UK or any other country?

Are there any published or unpublished statistics or papers on the dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, USA, UK, or any other country where vaccination has started at...

28 February 2021 4,237 1 View

The Shannon's index is inversely proportional to Simpson's index (1-D)?

I'm having a problem with my bloxplot with Shannon's and Simpson's indexs. The value of Shannon for my Community 1 indicating higher diversity (in relation of the Community 2), but have lower...

26 February 2021 3,033 9 View

Fractional impervious surface (FIS) map ?

Need Help Does anyone Know how to make a Fractional impervious surface (FIS) map from NDVI map, in ArcGIS environment? Thanks in advance

24 February 2021 8,455 2 View

Steps to calculate activation energy by coats & redfern method?

I'm a chemistry student and I'm researching the kinetic degradation of mixed plastic waste. I'm having trouble calculating the activation energy by the coats & Redfern method. The data that...

24 February 2021 974 1 View

What is the most important parameter of a research work, the impact factor or the h index?

The impact factor is a measure of the importance of a journal based on the number of citations received in a year. ... Articles published in a journal with a high impact factor do not all receive...

24 February 2021 7,481 2 View