Antibacterial liquid inhibition assay (MIC) with LB medium?

Is it possible to determine the antibacterial minimum inhibitory concentration (MIC) using a liquid inhibition assay (MIC) with Lysogeny broth medium instead of Mueller-Hinton broth? If so, is...

09 February 2020 6,330 5 View

Does it help for a prospective graduate student to have a research proposal in hand when applying to grad school?

This coming semester, I will be teaching an undergraduate class on graduate school preparation for science majors. One of the main assignments during the class will be the assembly of a full...

17 December 2019 8,239 11 View

Looking for validated questionnaires to use with both children and parents on reporting Emotional Health/difficulties?

Hi there, I'm currently doing my MSc in Psychology of Education. I'm looking to answer the following research questions for my dissertation? a) Are there differences in self-reporting of...

13 December 2019 8,779 5 View

Can a cell membrane be overloaded with too many particles attempting to enter?

When more than one biomolecules attempt to enter into a cell membrane at once (in a large quantity) does it impede the transfection process?

23 July 2019 4,149 2 View

How to improve DNA yields using DNA extraction kits designed for soil or sediment samples?

02 November 2017 9,029 3 View

How do you respond to requests for article reprints for articles which were published in journal to which you assigned copyright?

If the publication journal 'owns' the article and the request is not for teaching/educational purposes from someone who is not a current collaborator, do such requests fall under 'fair use' or...

17 October 2017 5,325 3 View

Has anyone conducted research on child protection, self harm, sucide, etc in SE Asia, more specifically Laos if possible?

Looking for any research around child protection in Laos. GoL sensors everything so I'm looking for information that might not have been censored yet. Thank you!

16 August 2017 614 3 View

Can SPSS be used to carry out a Cox PH model with a time-varying exposure covariate that changes status more than once?

I have looked through some help documents that indicate that the time-varying covariate can be constructed for an individual that has been exposed and then unexposed, or vice-versa. I was...

26 July 2017 7,097 3 View

ANOVA versus Student's t-test_Small samples

Hi, I hesitate between two statistical tests (ANOVA and Student's t-test) to compare the means of three groups (unpaired, n

20 July 2017 6,168 6 View

Can stress/pain induce coactivation of the sympathetic and parasympathetic autonomic branches and if so; can it be measured with HRV quantification?

Relevant in humans and in animals.

12 May 2017 8,273 3 View

How can I measure MMP-1 protein activity or protein level from liver tissue?

Instead of checking only the mRNA level, I want to check the active protein level of MMP-1 in Liver tissue from mice. How can I do that?

03 March 2021 1,763 2 View

Does any one know how i can prepare liver tissue with transmission electron microscope with good fixation?

i have problem in preparation of liver tissue with bad cell organelles and how i can adjust osmolarity

03 March 2021 8,890 1 View

Have someone successfully used the ER alpha (Santa Cruz sc-8002) antibody in immunostaining ?

Santa Cruz now recommends this new antibody (F-10) but I can't find a publication using this reference. I'm working on human et non human primate hypothalamus and so far, it doesn't work. Is...

02 March 2021 10,003 2 View

Interested to stain mice tissue with WGA 488 conjugate, anybody has a protocol to recommend?

Interested to stain mice brain tissue with WGA 488 conjugate, appreciate if anyone willing to offer me some guidance or suggestions! Thank you!

28 February 2021 3,951 2 View

Any specific pipeline or parameter to analyse total transcriptomics study of brain tissue samples?

I have two groups of brain samples, control and treated for example. It was total RNA nova seq sequencing. I tried all the available pipeline like: star+rsem+deseq2, Hista+stringtie+cuffdiff,...

27 February 2021 356 6 View

B-mercaptoethanol (BME) protocol?

Hi everybody, I have been running a multiplex IHC which allow me to stain the same tissue with different markers (Primary Ab + Secondary conjugated Ab) (AF487, AF555, AF647). Since I would like to...

27 February 2021 5,028 2 View

Why do my MCFs not form monolayer?

Hello, I am looking for some expertise on culturing MCF7s. I purchased them from ATCC and I have been following all media and culture conditions. Media is EMEM with 10% FBS and 10ug/mL of...

27 February 2021 3,904 2 View

Is there anyone who experienced with cytotoxic effect of Hoescht 33342 dye?

Is Hoechst toxic to cells? In general, it is known as non-toxic. I am working with dsRED MDA-MB-231 cell line. I applied it for my PDMS-based microfluidic platform, for this reason, I incubated...

26 February 2021 9,119 3 View

Why my agarose gel staining sometimes looks not homogenic but like gradient (see the figure)?

I am worried about this overexposure of the upper part of the gel in the picture. Is it possible that this is the result of too much concentration of ethidium bromide? Why is there such a big...

25 February 2021 8,140 3 View

Looking for genomic DNA extraction kits from mouse tissue (centrifuge-based, not spin-column)?

Hello. I am looking to extract genomic DNA from mouse brain and lungs and I need a kit that is not spin-column based because I need to scale up the solution amounts for 400mg tissue (most cap at...

25 February 2021 155 2 View