Why the density of the buoyancy liquid should be less than or equal to 1 gr/cm3 in Archimedes experiment ?

Why the density of the buoyancy liquid should be less than or equal to 1 gr/cm3 in Archimedes experiment ?

28 December 2020 3,887 2 View

How can i redraw the published figures to reproduce them in my articles?

is there an application or website that can be used to redraw and edit the figures to re-publish them without permission from the main author?

21 December 2020 921 3 View

What is the top ten scientific journals in the world, and how quality is evaluated?

Do quality is evaluated just depends on the impact factor (IF)? what is the greatest number of the IF?

18 July 2020 6,135 44 View

What is the main reason of global warming? Do CO2 is responsible only? Do wildfire an auto event?

The average temperature of the Earth is rising at nearly twice the rate it was 50 years ago. This rapid warming trend cannot be explained by natural cycles alone, scientists have concluded. The...

08 June 2020 3,764 38 View

How to increase diffusion of liposomes in invitro agar diffusion test ?

during a comparison between nano liposomes loaded with antibiotic and antibiotic itself in invitro antimicrobial assessment , we found that the antibiotic showed more inhibition for the bacterial...

23 February 2020 1,025 3 View

How to calculate the Permittivity of the cotton in the range from 0.5- 1.5 THZ needed to calculate the total pathloss?

I'm new in the field, working on characterization for a model of air , cotton , air in the terahertz band. I need to calculate the Permittivity of the cotton in the range from 0.5- 1.5 THZ needed...

14 December 2019 3,886 2 View

ABAQUS-Early debonding when modelling prestressed concrete slabs strengthened with Near Surface Mounted FRP strips?

I am modeling a prestressed concrete slab strengthened with NSM FRP strips using ABAQUS I'm experiencing early debonding at a lower load than the experimental results I'm modelling the contact...

03 July 2019 1,046 2 View

What are the different factors that affect the contrast of an image?

Medical Imaging

28 May 2019 9,969 8 View

Unsteady CFD simulation for gust over an airfoil?

I am simulating an airfoil under the effect of sinusoidal gust having the following profile (Vg=kg*sin(omega*t)) and at the same time i am pitching the airfoil using a circular domain around the...

14 April 2019 5,610 12 View

What is the difference between BGO and LSO detector?

It is the basic structure of some devices radiotherapy

14 April 2019 8,046 4 View

Should we change media after1st 6hrs after plating HUVEC bought from INVITROGEN?it's not recomended by invitrogen.Will DMSO present in stock matter?

We have HUVEC bought from Invitrogen. Cat no -C-003-5c. while first plating the cells we have bought the protocol suggests not to centrifuge the cell with media to remove the DMSO. Should we...

02 March 2021 3,713 2 View

How can I set up a good fit SEM model in AMOS?

I am trying to make an SEM model in AMOS for my dissertation but having some trouble with getting a good fit. I am looking for relationships between self-efficacy reported on a Likert scale and...

26 February 2021 8,642 4 View

Diltuions for a Western blot?

I need help using the equation C1V1=C2V2 figuring out how much antibody to add to use for a western blot. The stock was origianlly 3.45 ng/ul but diluted 1:10 so now its 0.345 ng/ul. I need to run...

22 February 2021 9,901 3 View

Is it possible to obtain a negative cronbach alpha?

Good evening everyone. If a questionnaire has 4 factors measuring different constructs as for example CAMI questionnaire measuring attitudes toward the mentally ill that has four factors:...

18 February 2021 3,223 3 View

What are alternatives for B27+ Supplement in neuronal cell culture?

Hello everybody In our iPSC-derived neuronal culture we use Maturationmedium, supplemented with B27+. As Thermo Fisher run out of stock and can deliver earliest in May, I wanted to ask whether...

16 February 2021 3,348 1 View

Can I use a categorical covariate in a Generalized Linear Model in SPSS v.26?

Hello everyone, hope you are well. I am planning to use a Generalized Linear Model in SPSS. I would like to add gender to the model as a covariate, however from what I have read, only continuous...

14 February 2021 8,937 4 View

How to revive a Hyphomicrobium strain?

11 February 2021 3,524 2 View

When to include covariates?

Hi it's me again! Coming to you with a question about including covariates in a model. So I'm running a mixed effect model in my longitudinal imaging data. I have 4 possible covariates to...

11 February 2021 1,404 1 View

How reliable are degrees of freedom for lme mixed models in nmle package?

I am running mixed models analyses because I have participants nested in groups. Across the different analyses, I have very different degrees of freedom in the lme output with nlme package (and...

09 February 2021 6,767 3 View

Does SSMPCA toolbox (scanvp) provide a module to perform the bootstrapping procedure to estimate the reliability of the covariance pattern?

I'm learning to perform the multivariate covariance analysis with SSMPCA toolbox (scanvp/ssmpca, www.feinsteinneuroscience.org). The step-by-step procedure to obtain covariance pattern and...

08 February 2021 2,383 1 View