How best can one separate n-hexane-soluble fraction of plant extract that binds strongly to silica gel columns and what are the possible compounds?

I wanted to elute n-hexane-soluble fraction of a plant extract in a silica gel column using different proportions of dichloromethane/n-hexane. The bands separated visibly initially but moved only...

18 January 2021 9,270 3 View

How do I plot the correlation coefficients (r) on a map based on a list of variables?

I am working to improve a manuscript and I have been advised to provide a map showing where the correlation is significant. Any information or links to learn about this would be quite helpful....

26 December 2020 1,162 5 View

How can I incorporate theory of planned behavior in developing interview questions?

I am conducting a qualitative research on smoking among youths in rural Appalachia. How do I incorporate the theory of planned behavior in developing open ended questions?

12 March 2020 9,538 4 View

Please l need suggestions from scientists on how to carry out snail vector control to reduce the incidence of schistosomiasis?

Can a snail vector be reared? If yes at what physiochemical conditions? Can a cercariae of schistosome be injected in an animal model? And which is the suitable model?

20 November 2019 1,748 2 View

How do I get access to reliable NDVI Images for computation of VCI and VHI of a given location?

Websites for free downloads; high spatial resolution of images

02 September 2018 1,296 2 View

What may be the cause of this strange J-V curves in perovskite solar cells?

I fabricated some solar cell devices and I discovered that about 30% of the devices gave strange J-V curves as attached here.

09 June 2018 9,315 7 View

What are the vital issues and literature to consult in writing a paper titled "Biogeography: the master voice of the Environment"?

To portray biogeography as having a better grasp of understanding and addressing environmental problems

03 April 2017 4,104 6 View

How can one induce poison on experimental mice?

am working on the antidotes used to cure poison case

19 February 2017 6,661 5 View

How can I set mobile node (MANET) to be in promiscuous mode in opnet modeller simulator?

26 May 2015 4,347 1 View

Can someone help me with a BLTK1 or K9 Murine Leydig Cell line?

01 May 2015 1,375 3 View

Does anyone know of a predictable relationship beween surface gravity and atmospheric composition?

The attached file demonstrates that there is a predictable relationship between the structural density of a terrestrial body and its none-rotating surface gravity. Using Newton's gravity law of...

26 February 2021 2,317 3 View

Anyone that can help with Maxquant TMT16plex which is missing?

Hi I am very new to proteomics analysis. I have got raw files from core facility running thermofisher TMT 16plex 4 hours. I cannot find on maxquant the option TMT16Plex there is only up to 11...

25 February 2021 1,675 3 View

Fractional impervious surface (FIS) map ?

Need Help Does anyone Know how to make a Fractional impervious surface (FIS) map from NDVI map, in ArcGIS environment? Thanks in advance

24 February 2021 8,455 2 View

Can you mention any source which presents an updates forest-fire hazard or vulnerability map of North-East India?

There exists a confusion of generating fire-hazard maps with MODIS data as that way, we cannot distinguish between shifting agriculture and wildfires. I am looking for a source that provides me...

22 February 2021 9,616 2 View

What should be the duration of exposure to simulated space environments with Rodents?

Hi, I am currently working on a pilot study to get some data related to the impact of long duration spaceflight to the microbiome and the immune system. I plan to use rats and simulate...

22 February 2021 592 1 View

Historical wind data/map?

Hello All, I am looking for the historical wind data/map (mainly the year 2020-2021). I would like to look at the wind value and direction for the specifics locations within the US for the...

18 February 2021 9,543 4 View

Comsol Maximum number of Newton iterations reached?

Comsol is investigating deformation due to gravity. Gravity is applied to the nanosheets to check for displacement and stress. If I input the Young's modulus of the channel to about 1 [GPa], the...

15 February 2021 6,027 3 View

How can we quantify martensite in Ferrous and Titanium alloys?

How can we quantify metastable phases like martensite in Ferrous and Titanium alloys, in relation to their stable counterpart For example in EBSD, XRD, Optical? Eg, Martensite and Ferrite maps.

09 February 2021 7,572 3 View

How to perform HeatMaps of RNAseq data?

Hey, Does anyone know an easy tool (website, software ) to create a heat map for RNA-seq Data. Thank you

04 February 2021 5,979 4 View

Can anyone suggest a numerical method to calculate perimeter of a contour in charge density contour maps?

Hi i have drawn the charge density contour maps using VESTA taking CHGCAR files from VASP. Now, What I Want is that I need to know the perimeter of each contour appearing in the cross section 2D...

04 February 2021 3,637 1 View