Does anyone have a shapefile for the entire Rocky Mountain range ? Or even better for the main mountain ranges of the world ?

06 May 2025 0 8K Report

For some data analyses, looking at latitude-longitude boxes or rectangles to depict a region of interest is not appropriate. Shapefiles can then be very useful.

Badges
Science topic

More Laurent Terray's questions See All

DdPCR analysis: biological replicates ?

--Hi, such as RTqPCR to analyse gene expression, is it necessary to have biological replicates in a ddPCR experiment ? thank yu --

21 May 2024 8,181 6 View

Model for reconstructing the number of inhabitants from the number of burials ?

hi, I'm trying to find out if there are any models for the medieval period south of the Sahara in West Africa that can be used to reconstitute the number of inhabitants at a site from the number...

04 November 2023 2,666 1 View

Aerosol biocontamination and sanitation network ?

Good morning, I am looking for publications/data regarding aerosol biocontamination from the sanitation network lift stations. Would you be aware of any articles or complications on this...

17 July 2023 2,369 0 View

Freeze Drying small volumes : What should be considered ?

Hi All, we usually discuss different tips in order to freeze dry large volume samples (e.g. two steps freezing, etc). I would like to ask you if you have any tips regarding the small volumes ? For...

20 June 2023 4,324 2 View

What do we know about the costs of synthetic fuels in road transport?

From 2035 on, besides fully electric cars, the EU will also allow the putting on the market of cars powered by synthetic fuels/e-fuels. Do you know an up-to-date, reliable independent estimate of...

29 March 2023 9,160 2 View

What is the significance difference between a p-value of 0.01 and a p-value of 0.012 ?

--Hi, p-value = 0.01 and p-value = 0.012 is it risky to say that it is the same thing in terms of probability ? p=0.01 --> * * p=0.012 (p>0.01) --> * Thank you --

09 November 2022 7,448 3 View

How to sample blood on X. laevis ?

Hi everyone, I am currently working with X. laevis and I would like to collect blood samples. This would happened right before euthanasia on anesthetized individuals. My aim is to measure...

20 June 2022 8,691 0 View

Could you recommend a method or pipeline for quality control and paralog removal from amplicon sequencing data?

Hello everyone, I have recently started working with NGS data (amplicon sequencing) for phylogenetics and species-delimitation studies of closely-related specimens (typically within a genus or a...

02 April 2022 3,139 0 View

Are changes significant?

Dear everyone, I've seen many posts in this community that seem to answer my questions but I have a tough time figuring out how my situation compares to the one described by the op's and I'm...

24 December 2021 7,852 4 View

Who can tell me how to employ an Endogenous-Switching Poisson regression model ?

I want to employ Endogenous-Switching Poisson regression model to determine the impact of x on Y. However, I don't know the succession of the variables from to the command , dependent variables ,...

06 September 2021 8,159 2 View

How to learn more about SPSS and its Application?

I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.

11 August 2024 9,101 4 View

Can I base on reverse DNA sequences to perform alignment, convert to amino acids and GenBank submission?

I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?

11 August 2024 5,138 1 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

Text-Communication from the M1 Hand Area using BCI—and then there is Elon Musk?

Willett, Shenoy et al. (2021) have developed a brain computer interface (BCI) that used neural signal collected from the hand area of the motor cortex (area M1) of a paralyzed patient. The...

10 August 2024 7,180 0 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...

10 August 2024 4,005 2 View

Has anyone applied Python in the field of textile engineering for data analysis, automation, or smart textiles?

I'm currently exploring the application of Python in textile engineering, specifically in areas like data analysis, process automation, and the development of smart textiles. I'm interested in...

10 August 2024 7,429 2 View

How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?

09 August 2024 7,718 0 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

Gromacs first step of minimization ?

I have face this problem anyone help me how to solve this issue ?which is below Fatal error: There are inconsistent shifts over periodic boundaries in a molecule type consisting of 78 atoms. The...

07 August 2024 2,598 1 View

How to prepare the nanoparticle treated fungal sample for Environmental SEM analysis?

A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.

07 August 2024 5,307 1 View