Could you please provide me a teaching, research, or editorial position in mathematics?

Dear Sir/Madam Could you please provide me a teaching, research, or editorial position in mathematics? You can find my details at https://qifeng618.wordpress.com. When you have any information,...

09 October 2018 9,504 2 View

Could you please help get the list of bibliographies in a newly published handbook by Dennis Bernstein?

Recently, a new handbook Dennis S. Bernstein, Scalar, Vector, and Matrix Mathematics: Theory, Facts, and Formulas, Revised and Expanded Edition, Princeton University Press, Princeton, NJ, 2018....

01 February 2018 4,294 2 View

What and where is the inverse of a concrete lower triangular matrix?

Dear All Could you please tell me what and where the inverse of a concrete lower triangular matrix showed in the picture is? Can you help compute the inverse matrix explicitly? Best regards...

10 November 2017 9,115 13 View

How to compute the inverse of a special matrix?

How to compute the inverse Anxn-1 of the matrix Anxn? For details of the matrix A, please see the picture uploaded with this message. It is better to find a reference in which this problem was...

11 December 2016 4,481 43 View

Can one give a general formula for the product of three different finite sums?

Can one give a general formula for the product of three different finite sums? See the picture attached with this question.

09 October 2016 5,240 14 View

Could you please help prove two integral inequalities in the picture uploaded?

Dear All Could you please help prove two integral inequalities in the picture uploaded to this message? Best regards Feng Qi (F. Qi) https://qifeng618.wordpress.com

08 September 2016 8,553 11 View

How to compute a special Hessenberg determinant below?

How to compute a special Hessenberg determinant showed by the PDF file? Thank a lot.

31 December 2015 5,197 5 View

What is the name of the matrix or determinant showed by the picture?

What is the name (for example, Vandermonde determinant) of the matrix or determinant showed by the following picture? I believe that it should have a name, but I am not sure.

11 December 2015 9,053 9 View

What is the formula for the Bell polynomials of the second kind?

My question is expressed by the picture below. May you provide me a formula and a reference to cite? Thank a lot.

04 May 2015 9,957 4 View

Where can I find the integral analogue of Cauchy-Binet identity?

07 August 2014 8,988 13 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View