Where can I download an MRI dataset of the human pelvis?

I am looking for a good/high-quality MRI dataset of the human pelvic region. Do you know where I can find this? Thanks!

13 October 2020 7,738 5 View

Has anyone received negative RFU values for one of your replicates in qPCR?

We are running qPCR with SYBRGreen to amplify an inserted 12S ribosomal DNA region of a plasmid. When we ran this amplification for the first time (in duplicate), one replicate looked fine while...

03 April 2018 4,926 4 View

Interpolation of 3D wind data (for every lon,lat,time) based on drifter positions and time (different matrix dimensions)?

Hello everyone, I am working with some meteorological data from SKIRON which I converted from grib to netcdf in order to make the necessary calculations and formatting for interpolation. I want to...

17 January 2018 6,415 3 View

What are the best procedures and techniques of teaching STEM education in the twenty first century?

I am interested in searching for the best procedures and techniques of teaching STEM to motivate and sustain students' interest in STEM particularly chemistry. p

05 September 2017 9,622 3 View

Is there a problem with using a large sample size in your data analysis after you have determined a small sample size before the study?

29 May 2017 6,595 10 View

Does injection of 18F-FDG induce an endogenous insulin response similar to normal glucose?

29 September 2016 5,189 2 View

What is the minimum soil sample size (in g) that should be used when wet sieving to examine mycorrhizal fungi spore abundance and/or diversity?

10 July 2016 7,749 11 View

Urgent: does this analysis of a repeated measure manova make sense?

background: 100 students were given an unrelated text and a related text each. they then had to answer questions on each text, say how interested they were in each text, and then evaluate how much...

30 May 2016 6,467 3 View

How can we confirm transfection of a WT gene into a cell line?

We are transfecting mutations and matched WT genes. We'll be using antibiotic selection and have generated kill curves to determine the optimal concentration of the selectable marker in the cells...

19 May 2015 4,820 8 View

What other factors can affect failure of hydrogels to form?

06 April 2015 7,411 4 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

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 evaluate unsupervised clustering metrics when some elements do not have a cluster label in the result?

I run algorithms like HDBSCAN and MeanShift, and compare them with K-means and GaussianMixture. The first two algorithms do not return cluster labels for some elements in the dataset. My question...

27 February 2021 428 3 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

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

How does GROMACS calculate the average structure of proteins?

I want to get a average structure from a pdb file containing multiple models. I used the command below: gmx cluster -f input.pdb -s topol.tpr -cutoff 20 -method gromos -av GROMACS...

25 February 2021 6,314 1 View

How to combine two geometries in LAMMPS ?

I am trying to simulate contact angle of water on a quartz slab using LAMMPS. I have created and equilibriated the quartz slab and the water cluster separately. Now I want to create a composite...

17 February 2021 5,884 2 View

How can I use Permanova to analyze individual variation with RNA seq transcripts and multiway Anova design?

I have a dataset with 96 individuals and 1496 transcripts of interest. I have analyzed the experiment by multiway ANOVA in the Permanova platform of Primer-E. I am satisfied that I have figured...

13 February 2021 7,217 4 View

How is KNN different from k-means clustering?

machine learning

09 February 2021 8,757 9 View