Has anyone used the Illumina ITS1 primer sets?

Hi everyone, Illumina provides a list of primers to amplify with high taxonomic coverage the ITS1 region for further fungal sequencing, but I cannot find the exact amount necessary of each...

25 February 2021 6,969 3 View

Agarose gel purification pre MinION sequencing?

Dear all, we performed an agarose gel purification with MinElute kit (QIAGEN) to extract bands between 3500 bp and 6000 bp for further sequencing with MinION. After the purification process,...

16 February 2021 5,178 1 View

How can I concentrate peptides?

I am working with an initial volume of 20 mL* and using a 10 kDa filter to separate proteins from peptides. With this filter I am able to concentrate the proteins upstream of the membrane....

15 January 2020 1,520 7 View

Why is one plasmid not transfecting HEK 293t cells , while a simliar second plasmid sucessfully transfects the cells with the same protocol?

I ordered and produced a plasmid from Addgene containing PIK3CA and GFP (pHAGE-PIK3CA-C420R (item #116457). I performed mini- and midi preparations and verified plamid production with a...

02 October 2019 4,078 2 View

Does anybody know the name of this plant from the Canary Islands?

15 April 2019 1,244 6 View

Any data regarding Calcium levels in glioma cells cytoplasm after adenovirus infection?

We are performing experiments on glioma cells. After infection of a cell line (U251), we see that Calcium levels increas even using a mock virus. Any reference that could explain this? Maybe...

03 March 2019 7,772 1 View

Input of WRF wind ouput to a CFD?

Hi. I am trying to a mesoscale and microscale simulation using WRF and a CFD. The output from WRF will be used as the boundary input. I was wondering though since WRF's output for wind is by grid....

21 January 2019 4,990 2 View

How to express units of DPPH radical scavenging activity?

Hi! we are doing some measurements about the DPPH radical scavenging activity of seaweed extracts. We know that the main units used to express this activity are in %. But we have different sample...

31 December 2018 1,744 7 View

How to calculate change in temperature on realistic resistor ?

When using the Specific Heat Capacity ,the following equation provides the temperature change: (T2-T1) = IIRt /(mc) I-Current V-Voltage R-Electrical Resistance t-Time m-Mass of the material c-...

12 December 2018 5,329 2 View

Softened Contact - Exponential - too overclosure. How it is possible?

Hi, It's my first topic so I introduce myself. I'm Iulen, I'm starting a PhD in Zaragoza (Spain). I have created an exponential contact interaction between a deformable body and a rigid body...

09 October 2018 9,097 0 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

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 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

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