How can I separate Gertrud Pfister's profile and the profile of Gerald Gems?

we are co-authors of several publications. But I am the only and single author of most of my publications which are based on my own research. How can I separate the profiles?

21 February 2021 4,582 3 View

MVN, how to conciliate contradictory results from Multivariate normality and Multivariate outliers test?

Dear colleagues, I'm working with Path analyses in lavaan and MVN packages. There are some results that for me are confusing and features from the MVN that I do not know how to set. My dataset is...

18 February 2021 190 3 View

How can I estimate and plot Logarithmic Error Bars (in Excel, preferably)?

Dear Dr.colleagues, I am currently plotting the dynamics of an infection in Excel. For each sampling day, I plotted the mean infection load of the population, using the standard error for the...

07 January 2021 2,069 3 View

What "planned comparisons of LS means" in Statistica is doing?

Dear colleagues, I am tryng to understand what the option "planned comparisons of LS means" in Statistica is doing? Let's say I have a factorial ANOVA with two categorical explanatory variables:...

06 December 2020 9,272 4 View

I want to do research on the environmental diversity between the space outside and inside of the building and how it affects the design process?

I'm not sure specifically about the topics. It's just generalized and I need to filter it down to one topic. Any suggestions on topics and books?

15 November 2020 4,288 3 View

Snowballing in Systematic Literature Reviews. How to ensure transparency?

Dear Ladies and Gentlemen Im doing a Systematic Literature Review for my thesis. I already identified the articles for my review through a database. However there are many articles that weren't...

04 October 2020 7,438 3 View

What is a valid and reliable instrument to measure/check the health literacy of the non professionals concerning chronic back pain?

13 April 2020 8,843 2 View

Is it possible to search for a specific pixel value within a raster frame and extract them at the same time?

Hello, I am looking for a method/s where the DN value of a pixel is available and will be used as an input for a query to search the whole raster frame for similar DN value. Do you have any...

02 January 2020 6,124 3 View

What is the best way to evaluate the science excellence of a research proposal?

Science Excellence is a key criteria needed in the evaluatation of reseach projects. What are the key factors that need to be assessed and their relative importance. How is this assessement best...

25 December 2019 5,028 6 View

Can I mix trypticase soy broth and nutrient agar together?

I am a non-microbiologist doing some microbiology work. I have plenty of dehydrated media for both nutrient agar and trypticase soy broth. If I need to make some trypticase soy agar, without...

12 November 2019 2,893 6 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

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

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Would fecal samples stored at -20C for over a year impact metagenomic analysis?

Dear All, I have access to some rodent fecal samples that have been stored at -20C instead of -80C. Anyone have experience with the impact of stowage condition on comparative metagenomic analysis...

01 March 2021 2,512 1 View

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why Trivalent chromium start precipitating above PH 5 ? Moreover discuss difference between adsorption of chromium and precipitation of chromium ?

I am a student of MS Environmental Engineering and started my research phase. I am working on metal removal ( chromium iii ) by using activated carbon prepared from the agricultural feedstock. So...

01 March 2021 5,475 2 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

How to compare 2 samples recruited with different sampling methods?

If I want to compare characteristics of 2 groups of patients, one group is recruited from a random sample of the general public while another group is from a sample with a fixed gender (male to...

26 February 2021 3,526 3 View

How can I assign a velocity along one direction to CO2 molecules in a molecular dynamics simulation using GROMACS?

Dear all, I am trying to perform a MD simulation about the interaction between CO2 and a polymer. I create my model, solvate it and perform the NVT and NPT equilibration. Now I am not able to...

26 February 2021 10,014 3 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View