What is this "object" I found on the beach in Iceland?

I attach a photo of each of the two sides of the object. The object is roughly circular, it is 27 mm across, it is 2 mm thick and it weighs 1 gram. If wet, it sinks in water (density > 1). It...

24 September 2017 5,460 2 View

Are you familiar with a methods for measure H2O2?

I would like to measure H2O2 in solution that content free cyanide, so I would like to work in non acid media, to avoid HCN formation. Anyone know a colorimetric or other method that I can use, or...

07 May 2015 8,184 4 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

Dapi fluorescence protocol for colon cell lines ?

28 February 2021 2,534 2 View

How to calculate Ligand-active site distance in a ligand-protein complex from MD simulation?

I have run a MD simulation of a ligand-protein complex in GROMACS using CHARMM forcefield. Reviewer has asked me to calculate Ligand-activesite distance and binding free energy of ligand with...

27 February 2021 4,703 1 View

Is there an open source free software for text mining and sentiment analysis?

I am looking for a free software for text mining and sentiment analysis for my research on customer review mining (it involves calculating polarity of attributes,opinion oriented information...

25 February 2021 1,920 6 View

Which are the journals for free paper publication?

A bunch of flower for everybody. I would like to ask about the list of journals which we can publish our paper for free. Thanks in advance. Sincerely Walid

25 February 2021 9,790 3 View

Suggestions for occupational stress surveys?

I am currently writing a masters thesis on reasons for occupational stress in the early childhood classroom, and want to include a short survey assessing participants work-related stress levels. I...

24 February 2021 8,678 2 View

How to empty large intestine in mice ?

Hi all I am working on colon-targeted drug delivery for which I kept mice fasting for 6h using fasting grills during scotophase (dark period). I observed liquid fecal content in the cecum and...

23 February 2021 7,701 2 View

Is it efficient to do liquid biopsy to investigate the gene expressions of the tumor?

To do liquid biopsy and look for specific gene expressions there are so many published papers. Thera are different protocols and procedures used to isolate circulating cell free RNA or mRNA from...

23 February 2021 7,326 5 View

Hello, does any one know a free medical text dataset?

a free multi label clinical text dataset , containing text as entry and several labels as classes. Best regards

22 February 2021 5,988 2 View

Protocol for membrane extraction E. coli?

Hello! I am interested in determining whether a poly-unsaturated fatty acid I have engineered E. coli to produce is being incorporated into the membrane of the cells or if it is simply a free...

21 February 2021 7,447 2 View