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How to give port for printed log periodic dipole array antenna in CST?

PLPDA have radiating element on both sides of the substrate. so how to apply port. i have attached the figure below.

03 January 2021 4,005 6 View

I want to design a printed log periodic dipole array antenna on only one side of the substrate. is this acceptable one ?

actually for PLPDA, it is designed on both sides of the substrate for providing 180 degree phase shift between the elements

28 December 2020 3,148 3 View

How to visualize cells seeded on Millicell-HA transwell?

Hi, I am working with Millicell-HA transwell to culture HCE-2 cells. But as the transwell in opaque, not able to visualize the cells. Can someone help me? Thanks in advance.

14 November 2019 3,573 1 View

Can somebody help me with method(s) to analyse and quantify oligonuleotides and protein interactions?

I am looking for an assay design that can help me analyse DNA (oligonucleotides) - protein interactions and provide some means to quantify these interactions. Any help or direction will be much...

14 July 2019 8,475 5 View

What is the calcium concentrations in KSFM and ideal calcium levels for cervical keratinocyte culture?

Hi! I an interested in culturing cervical kerationocytes and calcium levels in media are know to affect their cell growth. I recently obtained two KSFM for the same (one with Calcium and another...

14 May 2019 1,758 3 View

Can we add calcium oxide to graphene oxide?

Suggest any method for the metallisation of graphene oxide

28 January 2019 5,069 3 View

Mixed co culture experiment and MTT assays protocol?

Hello, I am trying to understand a co-culture experiment using different ratios of a cancer cell line and hematopoietic stem cell fraction in a mixed co culture. The ratios range from 1 to 1000...

11 October 2018 697 7 View

How to determine the accurate functional titer of a FLAG tag lentiviral particle?

I have a plasmid of >10 kb that I have made into particles in HEK293T. Before inserting the virus in mice, I would like to determine the functional titer. I have a p24 ELISA kit, but I was...

22 May 2018 3,900 3 View

I am working on ISSR primers. I get bands for some samples and a smear in others. Why?

Hi, I am currently working on ISSR primers for my algal samples. When I did PCR for my samples along with some marine algal specimens, I could observe bands for the marine specimens and a smear...

15 May 2018 877 3 View

Which is a very successful procedure for extraction of genomic DNA from herbarium sample?

Greeting to all researchers! Can anyone suggest me with a successful procedure for extraction of genomic DNA from herbarium material of Red algae (Rhodophyceae). So far we are successful in...

07 March 2017 7,720 5 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Is there any test to determine the cardiovascular risk of patients with obesity? from the perspective of obesity?

We found tests to determine cardiovascular risk taking into account lipid profile, blood pressure, age, history of diabetes, other laboratories. But when weight is involved, there is a paradox. I...

02 March 2021 6,036 1 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Hans-Georg Petersen

Here are just some links where you can easily find many information:

http://www.portfolioscience.com/?gclid=CjwKCAjw9suYBhBIEiwA7iMhNIzHxQK9z83xFPBGWdECkEMUJGAvVSDh89UcLb1v0M-PFivWDhzJ4BoCAqoQAvD_BwE

https://www.lehnerinvestments.com/en/portfolio-risk-measure-manage-investment-portfolio/

https://study.com/academy/lesson/portfolio-risk-management-risk-management-plan.html

Tazeen Mahat

Study Markowitz portfolio Theory and CAPM to understand and measure Risk - return relationship.

the Above link by Hans are quite useful.

Good Luck