How Can I clain a removal of a co-author?

I would like to make a correction in a co-author in your paper which is wrong. This name is also in other papers of Kenton Ko. Zey Ko is not a Co-author . The correct name is Zdenka...

24 February 2021 3,476 4 View

Would anyone have a sample survey questionnaire for an AHP-TOPSIS study?

I am currently working on my undergraduate thesis project and we are trying to compare the AHP method with the AHP-TOPSIS method. I have already found the format for an AHP survey questionnaire,...

03 January 2021 7,213 3 View

Will -80 freezer cause damage to enzymes?

The typical guidance on storing enzymes is to keep them in a -20C freezer, but would storing aliquots of enzyme for long-term storage in a -80C freezer cause damage that would result in the enzyme...

03 December 2020 7,550 3 View

Does anyone experienced EDTA salts precipitation in DMSO?

I added 2 mL of 0.1 M EDTA aqueous solution pH 6, to a solution of 3 mL pure DMSO and instantaneously I observed salt precipitation in solution. Is this happening because the pH of the EDTA...

17 October 2020 6,329 1 View

Did anyone try to measure the thickness of films with fluorescent peptides immobilized by ellipsometry?

I immobilize fluorescent peptide on chitosan films and when I try to measure the thickness of the film with ellipsometry, the software says that I have a film with 2 nm or less. However, with...

01 October 2020 3,702 3 View

Is sytematic review methodology adoped in demographic and population studies?

can a demographer employed the systematic review methodology in their research writing?

19 September 2020 5,242 4 View

How to run Targeted MD simulation using NAMD/ GROMACS?

I want to do targeted MD simulation on a protein (400 amino acids). Can anyone suggest me any good tutorial? Thanks in advance.

17 September 2020 342 2 View

Does anyone sell/know how to make 5 M sodium acetate solution?

I am trying out a new type of binding buffer for DNA extraction and the protocol calls for 5 M sodium acetate, but I cannot find anywhere that sells a stock solution that highly concentrated. The...

13 August 2020 5,149 5 View

Impact of digitalization on Mechanical Engineering?

I am currently researching the impacts of components of digital transformation and Industry 4.0 (optimization, automation, digitalization) on the fairly old field of mechanical engineering. Has...

27 June 2020 2,350 13 View

Impact of data-driven industry and digitalization on Mechanical Engineering field?

I am currently researching the impacts of components of digital transformation and Industry 4.0 (optimization, automation, digitalization) on the fairly old field of mechanical engineering. Has...

24 June 2020 2,360 2 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

How relevant is Mini slump cone?

for all the rheology researchers, my question is, how relevant is a mini slump cone (smaller than a standard 50 cent rheometer). currently based on testing, the thickness of slumped material is...

26 February 2021 3,668 1 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View

How to reduce residual stresses in MD simulation?

I am working on a preparation of representative polymeric structures of some popular polymers, such as polyimide or PTFE for MD simulation, during which a single nitrogen or oxygen atom will be...

24 February 2021 8,105 3 View

Suggestions for occupational stress surveys?

I am currently writing a masters thesis on reasons for occupational stress in the early childhood classroom, and want to include a short survey assessing participants work-related stress levels. I...

24 February 2021 8,678 2 View

The most suitable method to calculate the stress intensity factor in the presence of contact between the crack lips?

I'm trying to study cracked structures under a compressive load taking into account contact between the crack lips. I would like to know if the method of extrapolation by displacement remains...

21 February 2021 8,694 4 View

How do I collect online measures in a same-different task?

The same-different task requires to subjects to indicate whether a pair of stimuli seen or heard are the same (say AA or BB) or different (say AB or BA). Researchers often collect offline measures...

20 February 2021 9,226 2 View

How to perform EEG classification of Alzheimer and control groups?

I am doing a project on classification of EEG signals of Alzheimer's disease and control groups. Previously, I extracted the alpha power of the EEG signals and found out the strengths. I want a...

18 February 2021 8,502 2 View

How to perform Kaplan-meier survival analysis in SPSS?

Hi everyone, This is my first time of attempting to run survival analysis. I have a data on patients with End-stage Kidney Diseases (ESKD). I would want to run survival probability by treatment...

16 February 2021 2,647 3 View