ELISA detection cytokine in human serum (common dilution fold)?

Hi everyone, I'm gonna try to detect the IL-10, IFN-y, TGF-beta1 level in the human serum by ELISA. I bought the ELISA set from the BD contain Capture Ab, Detection Ab, Enzyme reagent, Standards....

09 December 2020 3,369 5 View

What is a popular and standard model for quantifying land change drivers/determinants?

I'm looking for a standard model to quantify the land change drivers (e.g., forest to agriculture or vs). Actually, it depends on the data that I have and the specific location, but I would like...

22 November 2020 7,736 3 View

Which book should be best as a text book for Health Psychology in university?

Hi everyone. I have read some recommendations about the book of Health Psychology for teaching this topic at university. These were posted in 2013, thus, I ask this question again if there is any...

07 October 2020 1,290 7 View

What is the minimum number of timepoints for markov models?

For those who frequently work in markov models, I am interested in knowing the minimum number of time points/observations to get stable estimates of parameters. I have some follow ups, too:...

24 September 2020 9,659 3 View

Multinomial (Logistic) Regression in SEM in R?

I was wondering there is a way to carry out multinomial logistic regression within a structural equation model in R? I am currently using the lavaan package, and so far have not been able to find...

28 June 2020 4,813 3 View

How to modelling a Mass-spring-damper system of two-body Point absorbed Wave energy converter using Ansys Aqua?

Dear Colleague, I would like to simulate a two-body FPA wave energy converter using Ansys Aqwa. Unfortunately, I have no idea to simulate a mass-spring-damper system that represents a PTO system...

05 June 2020 8,959 1 View

Which are the offline tools which can support the pre-processing steps in text mining without using the code?

There are many source code (R, Python...) which can support the text pre-processing. However, I am wondering that is there any tools (software) to do that?

10 December 2019 8,639 3 View

Convert .py file to .exe using pyinstaller .exe just blink. How to fix it?

I am new to python and am making a web scraping program to automatic collect information about scholarship for me and I want to share it with my friends. It has few dependencies. It run...

09 April 2019 7,524 3 View

Could someone help me understand FT-IR spectrum to check parallel or antiparallel beta-sheet?

I used a FT-IR machine (Nicolet 6700) to determine whether the beta-sheet we were making are parallel or anti-parallel. I am new to FT-IR so I hope someone could help me understand the spectrum I...

09 March 2019 1,215 2 View

Endogenous treatment effect with two endogenous variables?

Hi, I would like to estimate the impact of formal microcredit and informal microcredit on consumption as C = b1X1 + b2X2 + b3M + b4E + ... + e, where X1, X2 are exogenous variables; M is total...

06 September 2018 8,723 4 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

Microstrip antenna design tutorial of HFSS 3D layout module ?

I have designed a 24 GHz rectangular antenna on HFSS 3D model and got desired results while desing the same antenna with same dimensions I am getting resonance frequency at 27 GHz I am...

28 February 2021 4,426 2 View