21 September 2012 1 1K Report

I'm writing an article for my school's undergrad science magazine. I wanted to get some working scientists' takes on it.

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Is it possible for the soil pH to be around 8, but with negligible amounts of carbonates, bicarbonates and exchangeable sodium?

Can this pH of 8 be due to the presence of other substances? Or do I have an error somewhere in the analysis? Thank you!

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What are the prices for the following antibodies?

BD Pharmingen™ FITC Mouse Anti-Rat αβ T-Cell Receptor (561672) BD Pharmingen™ APC Mouse Anti-Rat CD4 (550057) BD Horizon™ V450 Rat anti-Mouse CD8a (560469) BD Pharmingen™ PE Mouse Anti-Rat CD45R...

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What is the recommended sample size for the validation of a standard questionnaire consisting of 40 items?

Dear colleagues, I am looking for advice on the validation of a standard questionnaire that I intend to translate. The original version contains 40 items. Could you please tell me what sample...

26 March 2024 1,660 11 View

Why does a precipitate form rapidly when i add a solution (Nitric acid + water ) to a solution of TTIP in isopropanol to ?

So I have ben trying to prepare TiO2 nanoparticles but i am getting trouble with the fromation of White PPT which later dissolves to form a clear solution that unfortunately doesnt form a gel. it...

25 March 2024 8,808 2 View

Does antigen retrieval for IF on tissue samples need to be done on the same day?

For both heat-induced or proteolytic-induced antigen retrieval, does the AR needs to be done on the same day of the IF? Or can be done one day in advance, store the slides at 4º, and performe the...

06 March 2024 220 1 View

Any empirical study about theater education for immigrant students?

Any empirical study about theater education for immigrant students?

03 March 2024 6,134 0 View

How can I model a packer in Abaqus for segmental tunnel linigns?

Currently, I am trying to model packers made from recycled plastic material (E=360N/mm^2 and a poisson ratio of 0.4). The best way to model these packers would be to only adjust the contact...

26 February 2024 5,699 1 View

What is the pH and osmolarity to measure the activity of myeloperoxidase (MPO) from the formation of hypochlorous acid?

Optimal buffer and conditions to determine the enzymatic activity of MPO by the colorimetric method that is based on the formation of hypochlrous acid which reacts with taurine to form the...

07 February 2024 3,056 0 View

Can convergence (SCF) be improved for transitional metals?

In Guassian, which convergence algorithm is best for working with transition metal interaction? It is taking a long time to even get the first block of coordinates, in the output file it said to...

28 January 2024 4,276 1 View

What is the ideal microscope objective (20x or 40x) to assess the size of adipocytes in abdominal adipose tissue in a murine model?

I need to evaluate abdominal adipose tissue hypertrophy in a murine model with metabolic syndrome, with and without treatment and I need to review which is the best objective to measure adipocyte...

09 January 2024 7,149 0 View

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