Solve standard curve equation?

I have a standard curve for an ELISA, and want to find unknown concentrations from absorbances. my polynomial equation is: y= - 1e-06x^2 + 0.0032x + 0.2562 How can I solve this to find analyte...

07 August 2019 3,433 3 View

What is the best method for finding unknown concentrations from optical density?

We have an in house ELISA, how do you calculate unknown concentrations from optical density values? We produced a standard curve but don't know whether to use sigma plot or excel. Also, Which...

07 August 2019 9,881 6 View

Reduction in fasting Insulin levels and associated CVD/T2D risk?

Does anyone have papers relating fasting insulin levels and associated CVD risks?

10 November 2018 1,898 4 View

What is a clinically relevant reduction in 24-hr Blood Pressure?

Is there a threshold by which 24-hr Blood Pressure needs to be reduced by to be clinically relevant? or is it possible to use the clinic-based blood pressure thresholds? any papers would be...

10 November 2018 9,731 3 View

Statistical difference between correlations?

Which test should be run for determining statistical differences between 2 (r values) correlations (correlated correlations)? I am looking to see if there are any differences between a placebo...

09 October 2018 6,566 5 View

What is the average dropout rate of human RCTs involving dietary supplements?

Any papers would be appreciated.

09 October 2018 2,335 2 View

What are normal serum concentrations of ACE enzyme in humans?

Does anyone have papers showing angiotensin-converting enzyme concentrations in serum in humans, preferably Metabolic Syndrome humans? Thanks

08 September 2018 6,238 3 View

Bland Altman for repeated measures reliability?

Can you use Bland-Altman for more than 2 repeated measures in the same person? I have measured the same dependent variable 5 times in the same person.

06 July 2018 9,472 3 View

Should Partial Eta Squared be used as an effect size?

When conducting a repeated-measures ANOVA between 2 conditions, SPSS outputs report Partial Eta Squared for effect size. Should this be used or is there a better alternative for effect size?

05 June 2018 6,676 3 View

How to report individual responses in a graph for a peer-reviewed paper?

I have data for systolic blood pressure over 6 time points for 11 people. Instead of showing the mean response curve, I would like to show individual responses for each person. A line graph...

11 December 2017 1,308 2 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

I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 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

Is there any test to determine the cardiovascular risk of patients with obesity? from the perspective of obesity?

We found tests to determine cardiovascular risk taking into account lipid profile, blood pressure, age, history of diabetes, other laboratories. But when weight is involved, there is a paradox. I...

02 March 2021 6,036 1 View

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02 March 2021 932 1 View

APA 7th In-Text citations with two references with three authors with the same surname, but four different author?

I have an issue with APA 7th in-text citation. II have two papers where the first three authors are the same, and the fourth is different. I am using the Mendeley desktop app, and automatically it...

02 March 2021 790 3 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

Where can I find life cycle inventory or assessment of non woven materials?

Dear network, I am looking for the LCA or LCI or at least the energy balances of the non woven fabrics process for my master project, in specific for natural fibers, yet I have found...

02 March 2021 9,662 1 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