How to perform power analysis for a one-way ANOVA in R when treatments variances are not exactly the same?

Hi! I've been trying to perform a power analysis for a one-way ANOVA in R using the pwr package. The equation that is employed for this is based on Cohen's f and assumes that variances among the...

16 September 2020 6,098 3 View

How to give to an image color a single representative value?

Hello, I am trying to associate the color of an image to a single numerical value. Images (see attach) correspond to different aloe samples that change in color according to the degree of...

15 July 2020 192 4 View

Google Earth Engine for Multitemporal analysis (Land Use Land Cover Change)?

Hello. I am reading about Google Earth Engine (GEE) and their applications for vegetation, landcover and agriculture mapping. I am analyzing an area of 20Mha to determine a multitemporal changes,...

01 May 2020 2,059 11 View

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04 March 2020 2,681 3 View

Is it possible to calculate pIC50 of a plant extract?

Is there a way to calculate the pIC50 value of a plant extract? As far as I know, in order to calculate pIC50, the IC50 must need to be in molarity, therefore, it's not possible to get the value...

08 January 2020 8,540 3 View

Why do my protein samples and standards get stuck running Western blot?

When I'm running an 8% SDS-PAGE gel at 100 V, my samples and standards get stuck after a while. Does anyone know why this is happening? Thanks!

20 May 2019 7,797 3 View

PAGE conditions in WB pro-IL-1beta?

Hi! I would like detect pro-IL-1b from rat cells lysate at 8h of stimuli. Can you recommend conditions like gel concentration and transfer time/mAh? Thanks you

31 August 2018 5,210 4 View

Why are bands seen in series on SDS-PAGE electrophoresis?

Hi, my lab assistant performed an SDS-PAGE electrophoresis as follows: Load order: well 1 corresponds to the standard, well 2-3-4 correspond to BSA proteins, Cytochrome c and Wheat germ acid...

15 October 2017 3,557 2 View

Method to measure tryptophan?

I work in tissue explants of placenta. I need quantify the concentration of tryptophan in the supernatant or homogenate. I know that quantify it is possible by HPLC, but I would like to measure by...

13 June 2016 918 3 View

Method to measure tryptophan?

I work in tissue explants of placenta. I need quantify the concentration of tryptophan in the supernatant or homogenate. I know that quantify it is possible by HPLC, but I would like to measure by...

05 June 2016 3,826 3 View

How do you write a simplified C block code of this average-current control on PSIM?

This is a Buck (step-down) Converter and I am new to this program. I need to program with simplified C block and I actually don't know what to do. Can anyone show me how to do this? Or at least...

02 March 2021 8,233 1 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

Do you know good and user-friendly programs to measure plant quantitative traits?

For my research i will need to measure plant quantitative traits (especially leaves area and roots length, but would be nice to add some more information). I recently discovered...

01 March 2021 5,035 2 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View

Can I download BibExcel for MacOs?

Hi everyone, I would like to ask how I can download BibExcel software for MacOs? There are some links which are supported by Windows but I could not find it for Mac. or is there any other software...

01 March 2021 652 1 View

Why am I not able to use all VEP programs for the in silico analysis of avpr1b SNP's?

Good day researchers I am busy analysing the predicted effects of certain SNP's in AVPR1b. When using the VEP prediction programs (SIFT, Polyphen, FATHMM, LRT, Provean, Mutation Assessor, and...

28 February 2021 5,197 1 View

What software programs can directly simulate Additive Manufacturing Directed Energy Deposition (DED)?

I understand there are a lot of software programs that can simulate DED by going through specific modeling, simulation, and commands. For me, that was time consuming and results were not accurate....

24 February 2021 4,428 3 View

Is it possible to set a breakpoint at a specific DYNAMIC instruction using the GNU Debugger (GDB)?

Using GDB, it is straightforward to debug and monitor a target program by setting a break-point at a specific instruction, since the instruction addresses are known. However, we have two...

24 February 2021 1,598 2 View

Implementation of chance-constrained optimization problem via scenario approach?

23 February 2021 7,826 2 View