How to measure acid values of unsaturated polyesters?

I've been using the standart AATM 109-01 (2006) procedure to determine the acid values of unsaturated polyesters. In this procedure solutions of Phenolphthalein and Potassium Hydroxide in etanol...

11 November 2020 7,768 6 View

CAS solution whit PIPES ?

To prepare CAS solution for siderophores assay, the protocol use anhydrous piperazine. Can I make this solution using PIPES ? And how? Thanks The protocol i'm following is:...

08 November 2020 2,751 2 View

Does anyone have a reliable protocol to assess cell viability in commercially available GelMA (Gelatin methacryloyl) ?

Hello all, I am trying to asses the viability of stem cells in GelMA (gelatin methacryloyl). Most articles make their own GelMA. However, our team bought a commercially available one. The thing...

13 September 2020 9,086 1 View

Which are the best loading controls for Western Blot excluding the cytoskeleton ones?

I need to use a loading control for Western Blot that neither includes a cytoskeleton protein or a protein that interacts directly with the cytoskeleton. My issue is that I incubate cells with...

27 August 2020 2,735 11 View

Does anyone know or can resolve this kind of Internal Error on Anylogic?

I am currently working on a Urban Traffic Simulation on Anylogic and sometimes when the simulation is running, this error appears and everything stop: "Exception during discrete event...

23 May 2020 8,461 0 View

What is the header of the Gaussian input file for calculating two distinct molecules?

I'm doing simulations with two different molecules, but it always ends up falling into the same problem, it seems that the Gaussian doesn't balance the molecules when I calculate the cation and...

03 March 2020 7,750 2 View

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03 March 2020 4,189 1 View

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Hello, i need to generate a few parameters of excitation states in a series of molecules. I am using g09. I have a opensuse (linux) with 24 cores, Dell setup (i believe it configures a...

14 February 2020 9,488 5 View

Is anyone interested in setting up a distance research group on agricultural risk management?

I am looking for researchers who are interested in the theme "agricultural risk management" to do a research group at a distance. Each addresses the experiences of local risk management, from...

08 December 2019 8,879 29 View

Are there any articles about impulsive buying and grandparents?

Hello! I'm taking an internship in Social Psychology Laboratory and researching Impulsive Buying. However, it seems that little research gathers information about these two variables together. Me...

07 October 2019 4,982 5 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View

Where can I find atmospheric measurement profiles (temperature, density, etc.) between 300-800 km altitude?

I am investigating thermospheric mass density profiles between 300-800 km altitude. I would like to compare the variability with other parameters, including temperature, electron content,...

01 March 2021 5,902 3 View

Trouble with Charting with Google Earth Engine (Technical)?

Hello. I have a problem with the charting in google earth engine. I created an image collection by combining 5 image collections of five parameters and using ee.Join.inner ( ) and .apply ( )...

26 February 2021 7,084 2 View

Why cannot world and community leaders be gentle? Where did ethics of care go?

The whole world is in a mess and paused. We all are tired of seeing hypermasculinized and destructive leaderships all around us. This world has seen enough of the aggressive patriarchal social...

23 February 2021 292 7 View

Magnetismic Gravity in the universe?

MAGNETISMIC GRAVITY What is magnetism? Something magnetic has a + and - charge. If 2 + or - are pushed if + and - are pulled. But what is the main reason for this? Why does magnetism have a pull...

21 February 2021 9,538 3 View

How to compute the distance in km between two points inside the Earth?

Hello everyone. I am looking for a simple formula to compute the distance in Km between two points inside the Earth. I do not mean the usual problem between to cities (distance along the surface)...

02 February 2021 3,455 4 View

SAR X-Band constellation from Capella Space?

Dear all, I'd like to open here a sort of forum for understanding how the geodesists community is moving in view of the X-band SAR satellite constellation. The new constellation will offer new...

24 January 2021 6,248 0 View

How do you start building a data set for machine learning?

-Required are DEM/DTM satellite data from mountain ranges without glaciers. For example SRTM 30m. -The data has 3 parameters only. X, Y and Elevation. There is no need for georeference or...

22 January 2021 4,059 6 View

What are the natural background values of Major,Trace and REE elements in sediments deposited by Indian rivers?

We are working on geochemical analysis of sediments derived from eastern and western ghats of India.

20 January 2021 8,963 6 View

Anionic sulfate complexes of rare earth elements, are they real?

Can you please tell me if there are anionic sulfate complexes of rare earth elements? And, if so, can you advise sources where you could read about it. Thank you!

17 January 2021 8,812 2 View