Any experience with why high instrument-to-instrument variability using two HIAC instruments ?

My instruments are not giving similarly SVP results

29 December 2020 4,627 1 View

Entrepreneurial Orientation Measurement Results?

Hello, I am looking for a review of EO measurement results via the Miller/Covin Slevin scale. I mean the actual values for innovativeness, risk and proactiveness. There are a number of papers who...

18 November 2019 8,474 3 View

Paper describing the shape of an oil droplet on water?

i try to simulate the shape of a 100 microliter olive oil droplet on water. looking at the interfacial tensions of the system (approx. values from varoius papers: water-air 72mN/m, oil-air...

17 November 2019 9,357 3 View

A pragmatic approach of dealing with unemployment of university graduates?

24 March 2019 4,027 4 View

[FE-SAFE]Documentation on the costum module frame of fe-safe?

Hi, I am working on fatigue and using fe-safe together with abaqus for analyses. In the brochure of Fe-Safe it is indicated that a "Custom module framework" (CFM) is available where one can...

09 December 2018 2,514 3 View

Amount of secreted protein in HEK293T media?

Hello everyone, i am trying to overexpress a protein in HEK293T cells. I have cloned it into an expression-vector with a strong CMV promotor and transfected the construct into the cells with high...

11 May 2018 662 3 View

Identifying fossil lizard jaw bones; anyone know of someone who specializes in this?

I have an undergraduate student who is sorting through some fossil lizard jaw bones, but identification to species (or even genus) is challenging. Does anyone know of a good resource (publication...

03 May 2017 5,792 5 View

RNA Quality for q-RT-PCR?

Hi, I am preparing mouse intestinal RNA samples from which I will use RT-PCR to produce cDNA and consequently perform qPCR on this cDNA. My question is, from these electrophoresis results...

19 January 2017 1,284 11 View

Survival Analysis, Time to Event Analysis, SAS?

Hi There,I have a cancer dataset with 170 observations, I calculated the length of progression(in days) as the difference between date of surgery and date of cancer progression. Now that the date...

10 October 2016 623 11 View

Survival Analysis/Time to Event/ SAS ?

Hi There, I have a cancer dataset with 170 observations, I calculated the length of progression(in days) as the difference between date of surgery and date of cancer progression. Now that the date...

09 October 2016 502 3 View

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

How does an antibody have full intact antibody + half antibody?

Hello, I was just wondering how does a antibody have full intact antibody + half antibody? Is it because of the drug conjugation?

28 February 2021 1,577 1 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

How do I choose contrasts in SPM8?

I am learning how to use SPM for PET and PET-MR analysis, but I haven't found any great resources that explain how contrasts work. I have a series of PET images where our hypothesis argues that...

24 February 2021 1,534 2 View

Do you kow of any database containing data on retention time, log P and polarizability for a large number of molecules?

Hi, I am a chemistry undergraduate doing my dissertation project on HPLC. In my project, I need to predict the HPLC retention time of 20 aromatic molecules, the calibration set. To do this I will...

24 February 2021 2,602 1 View

To date, according to health authorities, 30% of the population's diseases are initiated by drinking water pollution. Do you know this problem?

The main studies are as follows: * regular and timely receipt of information about the state of the environment using automated systems (stationary and mobile); * operational analysis of the...

23 February 2021 912 5 View