What is considered a good binding affinity energy value between macromolecules?

Hi everyone, Does exist any threshold for binding affinity value between macromolecules? E.g. Any value lower than -5.0 Kcal/Mol..... How to determine that the binding affinity among different...

22 September 2020 4,329 3 View

Means and SDs for proportions - How to proceed when we need the inverse data?

Hello all, I have a tricky situation here. I need a % and SDs of drug-negative urine tests across a methamphetamine study for a meta-analysis. However, the study brings the % and SDs of...

30 March 2020 9,494 3 View

Meta-analysis - what if we have two treatment groups?

Dear all, I'm writing a meta-analysis about treatment of stimulants use disorders. I am pooling data from RCTs using a certain class of medications. However, some of the described studies used...

03 July 2019 5,014 3 View

How do I get RRRs rather than ORs from Multinomial Regression on SAS?

I have run a proc surveylogistic model using link=glogit on sas. The idea is to run a multinomial regression model. However, whenever I run the model with it covariates, SAS provides an output...

18 January 2019 8,977 6 View

What is the best way to combine/merge/concat datasets of different size?

I want to know if have some way to combine datasets with a different number of instances into one so that the final dataset is not biased to larger datasets. For instance: we have the dataset A,...

26 September 2017 9,640 4 View

Can anyone indicate me protocols, questionnaires and tree decisions regarding environmental risk assessment of microorganisms?

environmental risk assessment quantitative risk assessment microbial risk assessment ecologial risk assessment enviromental risk assessment of microorganisms

19 March 2017 2,056 3 View

Is there any way to obtain the old 1980's software called Javelin?

Built by the creators of Visicalc and a competitor of spreadsheet software

03 February 2016 4,829 3 View

How can I dissolve commercially available LDL lyophilised powder?

I have tried PBS (pH 7.4), tris-glycine buffer (7.4) and I still can't get a full dissolution of LDL.

17 January 2016 3,820 3 View

What's the current state-of-art ensemble predictors combination?

13 October 2015 1,311 3 View

Does the laser used in physical therapy entails changes in skeletal muscle in patients with cancer?

06 August 2014 7,691 3 View

What is the status of bread making and more bakery foods with the use of insect flour/powder?

Insects have been consumed by human diet since prehistoric times. At present, the idea of looking at insects as food has been getting traction worldwide, also in response to increasing food...

03 March 2021 6,223 5 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 View

How to remove the residual PDMS on the silicon mold?

Incompletely cross-linked pdms are difficult to remove.

01 March 2021 798 3 View

Have anyone checked before Cyclic voltammograms of intial ITO substrate and E-teck?

As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic...

23 February 2021 3,175 3 View

How to reduce static electricity of powder after lyophilization?

I am working on synthesizing and then purifying peptides using the SPPS system. After purification of the peptide, the peptide powder is obtained using a freeze dryer. When measuring the powder,...

22 February 2021 10,099 5 View

Can't recognize exact phase and PDF card no of Silicon carbide in XRD?

We have deposited silicon carbide on carbon substrate using one PVD technique. Due to amorphous behavior of SiC at low deposition temperature, we performed heat treatment of those films at...

22 February 2021 2,072 3 View

What kind of steel moulds are used for hot pressing metal powders?

My main concern is that the metal powders should not weld to the mold surface and I should easily be able to eject out the pressed samples. I am looking for alternative for graphite moulds. The...

22 February 2021 2,965 4 View

Amorphous silica XRD peak at around 10 degree?

21 February 2021 3,417 5 View

How to Study a proton NMR of Graphene prepared by Electrochemical Exfoliation technique?

I performed a Proton NMR of graphene powder prepared by electrochemical exfoliation technique. It shows some peaks. But I can't understand it.

21 February 2021 8,947 3 View

What is the detection limit of ED-XRF technique for transition metals in silicon ?

Hi everybody, please, can someone tell us if the transition metals (W, Fe, Ni, etc ...) in silicon destined for solar cell manufacturing can be detected by ED-XRF technique. Note that the...

18 February 2021 6,231 4 View