What is the roles If we want to use frequent Intrathecal administration for rat model (treatment)?

More Omar Mahmoud Alshajrawi's questions See All

Why does flow deformation occur at the test line and control line on nitrocellulose membranes (LFIA)?

I use 1% BSA in 10 mM phosphate buffer (pH 7.4) solution when striping my nitrocellulose membranes with antigens and antibodies. However, I always observe deformed flow when my sample or running...

16 February 2021 4,224 3 View

How can I set up UV irradiation for crosslinking lab?

Hi, I am using a mix of 2 polymers and want to try and crosslink them. I have a UVA lamp of 365nm and have tried the lab previously at 30cm above. How would you recommend I approach the lab and...

31 January 2021 8,711 3 View

Which air pollution/air quality books do you recommend for working with environmental engineering students?

I am exploring up-to-date books on air pollution and air quality, and I would like to know which books do you recommend for environmental engineering students.

25 January 2021 3,972 7 View

How to simulate Sloshing water using Dynamic mesh in ANSYS Fluent ?

I am trying to model sloshing water in a tank in ANSYS Fluent using Wall motion. BUT it seems that System coupling is not responding to wall motion and it works only with Dynamic mesh.

20 January 2021 2,963 3 View

Are there other models that meet the same purpose?

Both Jakes and Gaussian models are used to characterize the power spectral densities of mobile communication channels.

11 January 2021 759 3 View

SDAS, secondary dendritic arms space relation with solidification rate?

Want to know the relation between sdas and solidification rate, the mechanism by which getting smaller space between secondary arms by increasing the rate ?

23 December 2020 735 2 View

Shall i use the country's CPI score or rank while entering the data ?

I have the Corruption perception index as a control variable in my study and i'm not sure what i have use the score or the rank of the country ? please advice what i have to use in the data entry...

09 December 2020 3,797 2 View

Any thoughts for a research topic in a master's level thesis regarding combination of Supply chain and entrepreneurship?

Hi, we are two master's students at JIBS and currently looking for inspiration and suggestions for a research topic that has a connection of both "supply chain" and "entrepreneurship". maybe...

18 November 2020 2,524 3 View

Can electrophoretic mobility measurements of polymer-coated AuNPs be used to infer the role of charge (if any) in their dispersion stability?

Hello Everyone, We have stable citrate-coated AuNPs dispersed in water. Different polymeric protective coatings (PEG, PVP, BSA) have been chemically grafted to the citrate-coated AuNPs for...

17 November 2020 2,903 16 View

How can instructors assess the intercultural competence of their ESL students?

Intercultural competence is a skill rarely taught and measured in ESL venues. What is an ideal way of measuring the student's progress in developing intercultrual awareness and testing it?

08 November 2020 2,176 16 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

What are the pros and cons for mice versus rats?

Hi Everyone, I am designing a pilot study using rodents to assess the effects of simulated space environments (radiation + altered gravity) on microbiome and immune system. I have limited...

24 February 2021 1,825 3 View

Are there methods for automatically mapping floodplains, fans and terraces?

I want to map these river geoforms with as little subjectivity as possible. I have a high resolution DEM generated by drone data.

22 February 2021 7,800 3 View

What should be the duration of exposure to simulated space environments with Rodents?

Hi, I am currently working on a pilot study to get some data related to the impact of long duration spaceflight to the microbiome and the immune system. I plan to use rats and simulate...

22 February 2021 592 1 View

Do I need to introduce HFD to ob/ob mice to obtain a T2DM model?

I am planning to work on T2 diabetic animals and check the efficacy of probiotics. My initial plan is to fed B6 animals with HFD for a while. But now, I have the chance to work on ob/ob mice. My...

18 February 2021 6,896 3 View

What are the options for global scale hydrology DEM?

Hello, I am working on a global scale hydrology GIS project delineating global watersheds and doing some data analysis. I have in the past used hydro1K from the USGS that cover the entire world....

18 February 2021 5,109 5 View

How can you tell if your organotypic slice culture is healthy ?

I'm working on organotypic cerebellar slice cultures from postnatal rats and I'm not sure how to tell if the slices are healthy at any given point. I know there should be a lot of microglial...

15 February 2021 2,830 2 View

Why daily dexamethasone given to rats fed high fat/fructose/salt cause very high mortality rate?

rats were given daily dexamethasone in drinking water corresponding to 0.5 mg/kg or 2 mg/kg. These rats are simultaneously fed 25% fat, 3% salt in diet and 10% fructose in drinking water but...

15 February 2021 7,634 2 View

Elwood K Walls

What is the treatment you are giving and what is the target location in or around the cerebrospinal space that you are hoping to deliver the treatment to? Are you aware of direction of CSF flow in the rat? When you answer these questions I can advise you.

Dr. Walls

[email protected]

Omar Mahmoud Alshajrawi

Elwood K Walls Target id L5 and L6. The answer will affect If we are using different treatments?