Is there an open source tool the measures the GRAVY index of a peptide incorporating the PTMs and unusual amino acids (e.g. hydroxyproline)?

Right now, I am using ProtParam to compute GRAVY index of peptides. However, some of my peptides are post-translationally modified, and contains unusual amino acids. I assume that ProtParam does...

29 January 2021 8,300 4 View

What do you mean by 'excitation' of a plasma wave? What is the physical significance of this 'excitation'? Why is it necessary?

I have read numerous research papers on various mechanisms of excitation of surface plasma wave. But why do we need to excite a wave? Is it necessary? Can't the wave propagate without being excited?

25 January 2021 3,790 3 View

What is the difference between research summaries and abstracts? Can an abstract be contained in a research summary?

Some articles confuse the two subjects. I need to find out if they can be used interchangeably. If not, what is the difference between the two?

13 January 2021 847 3 View

How long does the peptide cleavage cocktail last before it gets expired?

The cleavage cocktail is composed of Phenol/thioanisole/water/TFA/triisopropylsilane. I only prepare 10 mL cocktail per peptide but can the activity of the cocktail prepared at 100 mL last for a week?

10 January 2021 7,424 3 View

How to present and discuss results, when methodology is not data-based?

Dear Everyone! I'd ask you opinion about a problem, which is returning in my "softer" research field. Time to time I work on research projects, which do not have available data and/or the data...

29 December 2020 7,637 6 View

Do anyone know a lab in Mexico where dielectric properties of solids and liquid can be measured?

I mean those kits that can be connected to vector network analyzers in order to find out permittivity and permeabilitty of solid and liquid from around 1 to 10 or 30 GHz

25 November 2020 852 1 View

How would you describe the most relevant research questions and directions in urban air pollution, if I'm specially interested in transportation?

I am relatively new to this field, my research interests are smart cities, shared mobility, transport service integration. We have data about CO, NO2, O3, PM10 from several cities. I would like to...

11 November 2020 9,099 4 View

How relevant is the Area under curve (AUC) in ROC being different from .50?

I analyze the psychometric qualities of a screening instrument to predict depression after stroke using ROC analysis. In this context, I read several papers which report an AUC without a p-value...

12 October 2020 6,557 4 View

How do you guys measure the rate of protein translation for a specific protein?

I am trying to think about a way to measure the protein translation rate for a single and specific protein that I am interested in. I've been thinking that Ribo-seq might be a good idea for this...

07 September 2020 9,054 3 View

Determination of Lipid A in Salmonella?

Im working with a S. typhimurium strain. Until now when i wanted to have a look at the amount of Lipid A present in the cells, i did silverstainings with proteinaseK treated whole cell samples....

26 August 2020 9,455 1 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

No title

02 March 2021 3,060 3 View

How does one access the Cranet survey data on HRM practices?

Hello, The Cranet website does not provide any lead to the data obtained from their multinational survey on HRM practices. Any help on accessing the data would be most appreciated. Thank...

01 March 2021 9,536 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

Can I do two kinds of mixed method in explanatory research?

Dear distinguish professors and scholars, I have a research in measuring two kinds: think tank capacity and research impact on policy. Can I do two kinds of mixed methods in order to find, "Is...

20 February 2021 6,897 1 View

Does qualitative research using closed and open ended survey and semi structured interviews qualify as triangulation?

I am using qualitative research to look at employee motivation. I will use a closed and open ended survey (for biodata information and general views to motivation) and semi structured interviews...

18 February 2021 436 11 View

Should I include less important items in con-joint survey experiment?

I plan to do a conjoint survey experiment in which I randomly change attributes of hypothetical job candidates and show two types of potential candidates with different attributes. Then, I ask...

16 February 2021 5,812 1 View

How can we measure the reliability and validity of our survey questionnaire?

We are conducting survey research on COVID-19 misinformation among students. How can we validate our survey for it to produce valid and reliable data? Also, what statistical tools can we use to...

16 February 2021 678 3 View

What would be the best survey design and stat. analysis for my research- impact of pandemic on pro-conservation and pro-environmental behaviours?

Ive started to design the survey with demographics, I have a list of pro-environmental and conservation behaviours which i plan to ask if they have changed since the pandemic. I think i'll use...

15 February 2021 4,204 3 View

Bootstrapping: to use or not to?

Hello, I would need help w.r.t deciding on an approach. I sent out a survey and about 2000 of 15000 recipients completed the survey. Doubts have been raised on accepting the results based on...

15 February 2021 5,585 13 View