How does R programming language add non numeric operators?

Say I have list x(a vector of character names) and list y(a vector of data). I want to run each element of data within y through a loop, but I want it to print the element from vector x that has...

06 April 2020 7,867 3 View

Is it reasonable to use half your dataset to carry out exploratory analysis leading to specific hypotheses, and then test these using the other half?

There is a clear distinction between exploratory and confirmatory research. In exploratory research, we explore our data to discover interesting trends or associations, perhaps by analysing it in...

25 July 2019 9,588 4 View

How to add published research directly from the publication web site?

I have published articles and a PhD thesis which are not listed here. How can I add the link to the publication site here?

17 May 2019 4,398 2 View

What is the experience with Duck Duck Go as a search engine?

Concern about data mining and the uses to which the mined data are put suggest that privacy is not just a matter of personal sensitivities. It may, at least partially, be a social duty if it can...

15 September 2018 6,988 4 View

How does taking multiple measurements under the same condition affect experiment power and effect sizes?

In our research group we carry out psychophysics experiments that involve taking multiple measurements, e.g. reaction times or correct detections, under the same combination of variables. I...

01 August 2018 7,372 7 View

Is there a source to learn which cell lines bind RGD (are integrin-expressing)?

Hello, I was wondering if anyone knows of a resource which lists cell lines (common ATCC.org ones) that bind RGD (and ones that don't). Ultimately, we'd like to obtain a cell line that has high...

25 March 2018 8,053 9 View

Can anyone suggest a way to quantify viral RNA in the pg range other than PCR or Agilent's technology?

Viral genome is too large for Agilent's technology, and I do not want to use RT-qPCR. I am thinking mass spec, but would rather get something I can do in our labs.

08 March 2018 192 3 View

Looking for help building a layered structure in FDTD

I'm looking to build a layered quarter wave stack structure in a FDTD simulation. I've tried both 2-D and 3-D and it hasn't worked. I'm able to do a block of solid material but not layers. The...

10 August 2017 6,385 13 View

Should we use a Boneferroni correction to adjust the sgnificance level when performing Wilcoxon statistic for multiple pair comparisons?

I will perform a Friedman analysis on three means (a, b, c) from the same sample. If the Friedman is significant, I will perform a Wilcoxon as a follow-up test to assess which mean is different...

30 May 2017 8,236 10 View

Is it appropriate to use a weighted sample size in calculating standard errors and conducting significance tests?

SPSS' regression procedure, when conducting a weighted analysis (to provide unbiased estimates of population parameters) bases standard errors and significance tests on the weighted N. For a...

02 January 2017 4,722 4 View

How to analyze a particular region of my simulation box in GROMACS?

Hi, I am using GROMACS 5.1.4 to simulate water in contact with a surface. I am only interested to calculate some properties of water near the surface. Let's say at a distance of x nm from the...

03 March 2021 9,989 2 View

How to get onecolumn document from standard IEEE ACCESS LateX template?

I have prepared a manuscript in IEEE Latex template, but for some purpose, I need to prepare a word file as well (detailed format is not required). Compared to two column .tex file, one column...

02 March 2021 1,830 3 View

How can the modification of garden soil cause global warming?

Hello, I am working on a soil project and I found a primary research article that tests how the modification of agricultural soil can cause global warming, using a thermal collector, however I...

02 March 2021 7,161 3 View

Does anyone know how to plot my station to a section plot on Ocean Data View (ODV)?

I made a vertical section plot with WOA .nc file on ODV, and now I want to plot my stations (csv. file) in it. Does anyone know how to import my points to the section? They are two different...

01 March 2021 3,610 1 View

Does anyone know to clarify these changes?

01 March 2021 1,290 2 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

How can I convert .vesta file to a .cif file?

I've used the "export data" option in Vesta software to convert my unit cell into a cif file however when I use that cif in atomsk it shows error such as "can't read the position of atom 0". If I...

28 February 2021 4,966 3 View

Why do a weight decrease for thermal degradation in nitrogen gas condition?

Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...

26 February 2021 1,100 5 View

How can we use a hybrid element in Abaqus Dynamic/Explicit for impressible materials?

Hi, all! How can we use a hybrid element in Abaqus Dynamic/Explicit for impressible materials? I have not find the choice for explicit element in Abaqus CAE. I am wondering whether it is possible...

25 February 2021 9,936 2 View

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25 February 2021 5,713 1 View