What is the most controllable (marine) bacterial culture you can cultivate in simulated seawater?

02 December 2020 6,796 3 View

Are there studies of the Effect of Social Media Memes on COVID 19 Information?

Dear Colleagues, I put up this question at RG in order to find out what is being studied about the effects on people of social media memes as they attempt to find reliable information regarding...

17 May 2020 1,398 18 View

Is there a program to pull only nouns or verbs from a text?

Dear Colleagues, I am compiling a list of words for an index and I wondered is this exists--sure it does somewhere. The index is for a collection of literary analysis essays. Thanks, Gloria

25 February 2020 1,755 4 View

Does 36B4 really is a unique copy gene?

02 September 2019 3,570 2 View

How long can the fresh Lentivirus store at 4 degree?

I make lentivirus weekly, but just use 30% of total volume. the leftover is aliquoted as 1 ml each tube then freeze at -80 freezer. Questions: 1. is this store method correct? directly put in -80...

08 April 2019 4,628 4 View

Is there a 6-well plate for cell culture available with a more secure/locking lid?

We are looking for culture plates with lids that do not lift as easily outside the incubator. Alternatively, any techniques people have for how to avoid accidental lifting of plate lids would be...

01 August 2018 9,108 3 View

Is it possible for peroxide values of Ximenia oil to be affected by post harvest handling or length of storage ?

We measured peroxide values of Ximenia americana and X.cafra and the values were very low (3.7). i was just wondering if maybe post-harvest activities might affect this value.

14 May 2018 2,662 1 View

Can anyone help with theory on cultural transmission via science fiction, fantasy, and horror (gothic-based) literature?

Anthropologists generally study behaviors that persist in human groups. The invention of print media gave a new area for the preservation and transmission of cultural values. Literature,...

16 February 2018 6,397 7 View

Psychometric methods of testing the factor structure of a scale?

I want to examine the factor structure of two scales respectively (scale A: 14 items; scale B: 26 items). We are trying several methods: CFA followed by EFA; Rasch analysis and IRT respectively....

24 August 2017 2,254 8 View

How to compute the 95% confidence interval of the I^2 statistic? plus publication bias analysis in meta-analysis

I am working on a meta-analysis on effectiveness of a program. As indicators of heterogeneity in the effect size estimates, I have obtained the Q statistic and the I^2 statistic from the program...

08 May 2017 6,562 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

How much pressure we can reduce at the outlet to avoid Reverse Flow?

I am simulating Heat Exchanger. I have tried and tested all the methods to resolve this issue from the internet like refining mesh, improving skewness and orthogonal quality ,extending outlet to...

01 March 2021 6,985 3 View

How to show arrows over the streamlines in CFD-post?

I follow this to make streamlines like the photos attached below: (software- CFD post-processing) First I plot the 2D streamline over a surface "streamline 1". them I plot a vector by the...

01 March 2021 8,668 3 View

How to increase mesh quality of a cfd model in ansys fluent?

How can one improve mesh skewness, orthogonality, aspect ratio?

28 February 2021 7,730 3 View

What is the exact mechanism of the antimicrobial effect of local anesthetics?

The antimicrobial effect of local anesthetics has been known for more than 50 years, but it still seems to have an unclear mechanism of action. which bacteria? which concentration? etc etc. ....

27 February 2021 4,450 2 View

No title

I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 3 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

Is the a way to contol flow (Flow velocity) without impacting pressure value?

I have a pipe with 10 mm in Diameter and 2 bar pressure, the fluid velocity is 200 m/s, the fluid is air. is there a way to reduce velocity without affecting the pressure value?

25 February 2021 7,187 3 View