I am looking a free downloadable SPSS software, any assistance will be appreciated. Is there any available?

I am looking for a link to download free SPSS software.

13 June 2019 1,169 13 View

Can any one help me with the python implementation of adjusted cosine similarity with movielens dataset in collaborative filtering?

CF Recommender System

01 August 2018 9,207 3 View

What is the best approach to be used in evaluating Textual CBR System?

CBR means Case-Based Reasoning

11 October 2014 8,791 3 View

How can I import a common text file(.txt), read its content using UEXTERNALDB subroutine and call the file from UMAT subroutine in ABAQUS?

I have developed a phase field model in Comsol and I want to import the result to ABAQUS, and perform stress analysis using UMAT. Helpful tips from my colleaques that use ABAQUS is needed.

13 June 2013 5,866 3 View

Content Analysis of Online Newspaper: How to Check Reliability?

What is the best way to check reliability in an online newspaper Quantent Analytical study using the Litrl browser?

01 January 1970 9,035 3 View

Is a gap between fingers and busbars on a pv cell normal?

01 January 1970 5,333 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

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 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

Does anyone have a sequence for the human CD34 promoter?

I'm looking for the human CD34 promoter sequence to engineer into a vector construct. Can anyone recommend a good source for this sequence? Thanks very much, Laura

25 February 2021 8,205 1 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

Any easy method of analyzing vitamin D in foods by HPLC?

Looking for method of extracting and analyzing vitamin D in foods by HPLC

24 February 2021 7,524 7 View

What HPLC Marker(s) should be used to detect anthocyanins in a sample?

What HPLC Marker(s) or standard is used to detect and quantify anthocyanins such as Delphinidin, Cyanidin in a given sample of plant extract?

23 February 2021 1,832 4 View

HPLC baseline failure (ACN/Water)?

My baseline increases without any explanation, it is only fixed by changing the solution B, will it be the column? Reagents? Bomb? Detector? Solution A: H3PO4 0.01% IN WATER Solution B: H3PO4...

21 February 2021 5,656 3 View

Which vial septa the right one to be used for HPLC?

This is the unanswered question stored very long in my mind and till now I could not find a right answer. Google search educated me that the red surface is the PTFE material compatible to wider...

21 February 2021 546 3 View

What is the stability of 2 3-dihydroxyquinoxaline in acidic water?

I'm developing a UHPLC assay, and the fluorescent product is 2,3-dihydroxyquinoxaline. The reaction to produce this requires hydrochloric acid (about 1.2 M). Will storage in this acidic...

20 February 2021 5,820 4 View