How to find statistical difference between category counts in a multiple-response survey question?

Which statistical test is appropriate if we want to look for statistical differences between total counts for each category, if the subjects can select multiple categories in their response? The...

23 January 2021 6,926 3 View

Is it possible to add hierarchical porous Cu/Zn-nanoparticle@carbon materials into a carbon paper based gas diffusion electrode (GDE) ?

26 November 2020 5,075 1 View

Tips for students on how to take care of a work-life balance during a covid19 pandemic ?

Students asked me for advice on how to deal with work-life balance during a lockdown. Some of them work and study from home. Do you have any helpful suggestions? I found an article that suggests...

29 October 2020 5,994 2 View

Best tips for engaging students during remote lectures ?

The academic year has begun, and at least for now it will be coordinated remotely. What ways do you have to engage students' attention during remote lectures? I was thinking about asking...

04 October 2020 9,988 38 View

How do I create a matrix file from my variant frequency to create a sequence logo?

I would like to create a sequence logo from my variant frequency (short 15bp DNA sequence). So it's not the normal alignment of several sequences but only ONE single sequence where I would like to...

31 March 2020 1,405 8 View

Can individual, dyadic and triadic interviews be analyzed together?

I am conducting a multiperspective interviews on cultural competence in healthcare institutions (management level). Some interviews are individual, but in some institutions, they expressed the...

03 May 2019 4,387 4 View

RNAlater reaction with PBS?

Currently planning to make hookworm protein extract with frozen adult hookworms in RNAlater solution. I am planning to first remove all of the RNAlater and wash in 1X PBS and eventually gauge...

15 July 2018 7,075 1 View

Flow Cytometry protocol for Tregs detection (CD4+, CD25high, FoxP3+) in fresh isolated horses PBMCs ?

Hello, I'm Trying to mark Tregs population in Horses, I adapted a protocol used to mark Tregs in dogs, and It worked at the beginning. But after 7 months I started my experiment and I haven't...

25 May 2018 7,953 5 View

How to use MODIS for calculating Leaf Area Index in Certain Places ?

I need to use leaf area index data for succession analysis in Mt.Papandayan, I would like to ask several questions : 1. How to extract MODIS data and present it ? 2. Is there any additional...

27 November 2017 622 2 View

Methods of Chick Hematology Research ?

I was asked to supervise my junior in a small project about Chick hematology, because I am new to the topic I have several questions to ask : 1. My juniors are planning to see the garlic oil...

03 November 2017 4,891 2 View

What is the best way to keep an anaerobic chamber anoxic in the absence of hydrogen?

I'm a graduate student who works with an anaerobe, so I often work in an anaerobic chamber. I've been working on an assay that involves the steady-state of the quinone/ quinol pool. Anoxic...

03 March 2021 2,971 1 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

Necessary tube lenght to cool Natural gas in a dry-ice cooling bath?

I have a tank which contains natural gas at 250 Bar and 293 Kelvin. I want to cool the gas in a dry-ice cooling bath to about 195 Kelvin. The gas will flow in a copper-tube through the bath with a...

27 February 2021 8,128 1 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,253 3 View

Gas sensor response and recovery time independant of flow rate and chamber volume?

I am trying to obtain the response and recovery times for my gas sensor device. It appears the the response/recovery times are primarily dependant on the flow rate of the gas I inject into the...

26 February 2021 1,511 3 View

Why do a weight decrease for thermal degradation in nitrogen gas condition?

Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...

26 February 2021 1,100 5 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

How to model Supercritical water gasification (SCWG) process in Homer software?

Hi everyone How to model Supercritical water gasification (SCWG) process in Homer software?

25 February 2021 4,075 1 View

Is it possible to define biogas as a fuel in the reformer process(scwg) in Homer software?

Hi every one Is it possible to define biogas as a fuel in the reformer process(scwg) in Homer software? Biogas fuel is not available in the options thanks

23 February 2021 6,518 3 View