What is recommended and opened real-time or nearly real time geospatial data used in flood risk assessment and regional planning on a detailed scale?

I asked recommended real-time or nearly real-time data source for any parameters for flood risk on a microscale analysis for urban area cases in developing countries that had agglomeration urban...

18 February 2021 2,617 2 View

Do you consider that rose bengal chloramphenicol agar is suitable to isolate and count fungus?

Someone knows about a specific law or regulation which mentions the use of the rose bengal chloramphenicol agar is suitable to isolate and count fungi. Perhaps, someone has done a research about...

07 January 2021 5,325 5 View

No title

07 January 2021 9,052 1 View

Regression analysis on small but complete dataset (perfect representation of reality)?

I have a repeated measures design with about 16 cases and 5-6 points of measuring. Sometimes, 1-4 full cases or some points of measure are missing. (The measures are 20 numerical and categorical...

20 December 2020 9,004 7 View

Approval for MnFe2O4 for industrial wastewater treatment?

I am using MnFe2O4 NPs as adsorbent for CrVI for wastewater treatment following literatures as it is one of the best, but I have a challenge of releasing Mn+2 in the environment. A lot of...

19 November 2020 3,404 4 View

FISH probe synthesis with PCR?

Hello, I have some troubles with the synthesis of a DNA probe for FISH in paraffin tissues, we decide to synthesize it by PCR with labelled dUTP, but we haven't had any results, I tried chaging...

08 September 2020 183 3 View

HAP1 cell transfection with RNP complexes?

Hi, Does anyone have experience with transfecting HAP1 cells for genome editing with Cas9/gRNA complexes? Or are the HAP1 cells difficult to transfect? Thanks.

27 August 2020 6,028 1 View

Psychologically, How can you support a Covid-19 patient ?

After being affected with that viruse , most of the patients feel depressed and sad . How can we , psychologically, encourage them ?

26 August 2020 6,178 93 View

How does COVID-19 affect the Stakeholder Engagement of YOUR EU Energy OR Marine Projects?

Dear researchers, The COVID-19 pandemic has large societal and economic impacts, from which also different stakeholders involved in EU H2020 energy projects are affected. With this survey, we...

17 June 2020 4,542 4 View

MIKE 21 Illegal Storage Access?

Has anyone ever received the error 'Illegal storage access Abnormal completion' from MIKE? I am using the Data Extractor FM and at certain times this error comes up. Once I receive this error I...

24 March 2020 2,518 3 View

Why might my GFP tag be dissociating from my plasmid after transfection?

I have a set of stably transfected cell lines all transfected with plasmids containing GFP tags on the C terminus. During a western blot using anti-GFP antibody, one of my plasmids has dissociated...

01 March 2021 9,310 4 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

What is the most suitable server for predicting protein structures in bacteria?

I have used the i-Tasser several times, however it has been unavailable for several days. I tried the swiss-model, but the output was not very pleasant due to the model used. Is there any other...

28 February 2021 4,521 3 View

Do you need the CMV enhancer before the CMV promotor for a proper function of CMV on the gene that follows?

I'm a student and I have to produce a cell line with a knockin for the NRF2 gene with GFP. I have to put a promotor in front of the GFP because the gene will be too far away from the promotor of...

28 February 2021 7,127 2 View

Are protein samples in SDS compatible with ELISA?

I have used an AllPrep DNA/RNA/Protein Mini Kit QIAGEN kit to extract RNA and protein from my samples. At the end of the protein purification, I resuspend my protein in 5% SDS. Will these samples...

28 February 2021 7,370 3 View

Unknown debris sheets observed in cell culture flasks?

Hi, We culture neural progenitor cells in T175 culture flasks coated with PLO-Laminin. We have successfully grown these cells with our protocol for months. Recently, we observed large sheets...

25 February 2021 3,443 4 View

How to replicate the well conditions of a crystal hit with 20%(w/v) isopropanol?

I had a crystal hit in a well with 0.1M HEPEs pH 7.5, 10%(w/v) PEG 4000, and 20%(w/v) isopropanol. Why is isopropanol in w/v here if it's just solvent? How do I recreate this well condition?

25 February 2021 9,761 1 View

What is a good reagent for lentiviral plasmid transfection in HeLa cells?

I have been using Lipofectamine 2000 but was hoping there may be a better protocol or one for something like Lipofectamine PLUS reagent.

24 February 2021 1,633 4 View

Problem with ligating 2.8 kb insert into 8.5 kb plasmid?

I am trying to clone 2 copies of the same mammalian gene into the pSF-CMV-Ub-Puro Ascl (contains HindIII, KpnI and NheI cut sites) plasmid. This is what the final product is supposed to look like...

24 February 2021 6,310 3 View

What urea buffer can i use for biotagged protein extraction from streptavidin beads?

Hi all, I have been doing research on biotagged LDB1 proteins in Mel cells. I purify the proteins using M280 streptavidin beads. The yield is very low so I've been trying to optimize it by...

24 February 2021 5,749 3 View