how to calculate the Hessian matrix from R?

I develop a new probability model . The new probability density function is introduced of Half logistic Weibull distribution having three parameter but i have not no idea how to calculate the...

23 November 2019 7,445 1 View

How to construct the confidence interval of estimated parameter of normal distribution by Hessian matrix in Maximum Likelihood Estimation?

I want to estimate the unknown parameter of normal distribution by MLE of my data set of weight of new born babies of Nepal Demographic Health Survey. I want to construct confidence interval of...

30 October 2019 4,525 1 View

In composite materials, intensity of XRD peak increasing comparitive to host. It was also observed that porosity also increased in SEM images. Why?

Dear all, i am working on composite electrolytic materials. In my material intensity of XRD peak of composite increasing comparive to host. More over to that crysttallite size is decreasing and...

04 May 2018 9,508 3 View

Scaling up co-cultures?

Hi all, At the the moment, I do co-culture experiments between T-cells and antigen presenting cells in 96-well U-bottom plate wells. These are good for co-culturing about 5x10^4 APCs per well....

10 July 2017 2,730 1 View

How to measure color from bacterial culture?

i had halophilic culture, and i had varying microelements in the growth media. after incubating for 4 days it color has change to red because it was red halophilic bacteria, but every variation...

30 April 2016 1,036 8 View

How to prepare sample for SEM of bacteria with and without nanoparticles?

I am checking antibacterial activity of nanoparticles, want to take SEM image of bacteria with and without nanoparticles. So how can I prepare sample for SEM ?

06 November 2014 8,223 5 View

How can I use a SVD in hypoDD?

13 October 2014 1,607 4 View

How do you determine events as good quality only from catalog data (when the waveform data is not available)?

I attach the catalog data header to make things clear. From this catalog data I want to specifically relocate every 'good' events using hypoDD at a certain depth target (let say 2-4 kms below datum).

29 September 2014 7,612 3 View

Related to Tensor double dot product: What is the double dot (A:B) product between tensors A(ij) and B(lm)?

Referring to books on continuum mechanics, I see that the standards followed by text are very different. For example, author JN Reddy addresses A:B as A(ij)B(ji); while Holzapfel addresses A:B as...

21 February 2013 6,490 30 View

First Principle Modeling

Can someone suggest the best resource(s) to learn and understand the steps for first principle modeling?

28 March 2012 6,576 1 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 upload pdf of my articles published?

How to upload pdf of my articles published?

03 March 2021 2,183 3 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

How to add a journal?

I would like to know how to register the journal Flora Montiberica (ISSN 1138-5952 - eISSN 1988-799X) in Research Gate.

02 March 2021 8,156 2 View

Would adding books published in Lambert Publishers increase my RG impact?

There are some books published in LAP. Shall I add it to the RG?

02 March 2021 2,753 1 View

Could any one guide me, to write research proposal for grant? ?

We have one plant, the local people using this for controlling blood sugar, the toxicity and antidiabetic activity of the plant is not reported yet, please guide from whag should be the process ?...

02 March 2021 2,300 1 View

Is it possible to remove a preprint posted by a journal which is already rejected?

As we know many journals are posting preprints (DOI) in advance before the peer-review process. However, there is no guarantee that the preprints get published. The journal's reviewers undergo the...

01 March 2021 5,778 2 View

No title

Hi, I have several doubts about one paper (Systematic Literature Review) that was rejected. The main topic is Single-Board Computers in engineering education during the period 2010-2020. The...

01 March 2021 9,015 3 View

How to figure out easily the right journal with the right scope for your paper?

According to my experience most of the selected journals during paper submission are based on journal text matching suggested results from Springer, Elsevier,,,Etc. then the manuscript happened to...

01 March 2021 1,786 3 View

Any research paper call for publication related to management or finance or economics?

It should be standard journal (Indexed)

01 March 2021 8,379 1 View