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

Relativity is actually an uncertainty.?

04 January 2021 718 3 View

Quantum theory created dark matter before the universe was formed. ?

If the size of atoms, that is, the existence and existence of atoms, gives us the quantum theory, what is the relationship between the higgs boson that gives mass to matter and the fact that the...

30 December 2020 5,432 3 View

Does anybody look Erasmus K2 Projects Partnership?

Hello All, We are currently looking for Erasmus K2 Project partner in Europeen countries. Are there anyone interested in becoming a project partner in the social sciences and (or technical...

10 December 2019 6,491 2 View

How to prepare 4% PFA/PBS for zebrafish embryo ALP staining?

I want to prepare fixation buffer 4% PFA/PBS but I'm confused with the methods I've come across. I tried to follow this one method whereby I dissolved 4g of PFA (merck, for synthesis) in 50 ml of...

09 July 2017 7,936 5 View

Age adjustment of two groups, how to do at SPSS?

I have two groups receiving two alternate drugs. The comparison of groups revealed us no differenceof outcomes. However I need age and birth weight adjustment of two groups and adjusted p values....

17 January 2017 8,577 7 View

What is the most efficient method for isolation and sorting myeloma stem cells?

myeloma stem cell isolation sorting culture

30 April 2016 7,467 1 View

Is there any way for matching peaks in a database and find the compound (especially inorganics) in FTIR ?

FTIR peaks are in cm-1 ...

18 January 2016 5,895 2 View

Is PHENOMENEX KJ0-4282 Security Guard really a universal HPLC guard cartridge and can it fit all types of HPLC columns?

02 September 2015 3,297 10 View

Any suggestions for a work up for 2-Amino-1-(4-nitrophenyl)-1,3-propanediol after deamidation from chloramphenicol?

I have prepared 2-Amino-1-(4-nitrophenyl)-1,3-propanediol by acid catalysed deamidation of chloramphenicol and confirmed the structure by LC-MS. I need to purify the product and determine its...

29 January 2014 2,468 2 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

Can Ethovision store the generated data and video recordings directly to NAS system?

The size of data generated by Ethovision is huge. Having NAS system for data storage seems to be a good option, I am wondering whether Ethovision can directly store the data to the NAS system...

27 February 2021 6,350 2 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

Recalcitrant seed short-mid storage method?

Dear peer scientists, Ultradry storage is not suitable for recalcitrant seeds. However, theoretically, if we can stabilize the structure of the subcellular membrane, as well as glassify the...

25 February 2021 2,442 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

HPLC baseline failure (ACN/Water)?

My baseline increases without any explanation, it is only fixed by changing the solution B, will it be the column? Reagents? Bomb? Detector? Solution A: H3PO4 0.01% IN WATER Solution B: H3PO4...

21 February 2021 5,656 3 View

What is the stability of 2 3-dihydroxyquinoxaline in acidic water?

I'm developing a UHPLC assay, and the fluorescent product is 2,3-dihydroxyquinoxaline. The reaction to produce this requires hydrochloric acid (about 1.2 M). Will storage in this acidic...

20 February 2021 5,820 4 View

Which transfection reagent is the best for plasmid transfection of MDA-MB-231 cell line, Lipofectamine based or other reagent suggestion?

I try to transfect MDA MB 231 cell line with a plasmid by PEI, unfortunately, the rate of transfection is low, and now I wanna find and order the best transfection reagent for this cell line and...

19 February 2021 828 6 View

Any information about dinitrosalisylic acid reagent end point color stability ?

I work on estimation of alpha amylase activity using dinitrosalisylic acid reagent If i put the reagent to stope the enzymatic reaction and allow the reagent to react with the produced reducing...

17 February 2021 7,402 4 View

Has anyone performed a colorimetric RT-LAMP assay using Lucigens LavaLAMP kit?

Hi there, my lab recently opted to use LavaLAMP from Lucigen instead of the Warmstart kit from NEB. However, Lucigen has yet to create a colormetric kit for RT-LAMP, and adding phenol-Red (pH...

17 February 2021 5,399 1 View