Can Dess-Martin Periodinane be used in DMF or THF?

After seeking for references, most of the solvents for Dess-Martin is DCM, but my compound has a poor solubility in DCM. Because my compound is acid-sensitive, I prefer not to use IBX to oxidize...

17 January 2021 3,586 3 View

The correct way to measure moss humidity in field?

I want to record the humidity of moss in the field within a few months, i am thinking I can use the Humidity recorder, placed on the moss surface, but is this the correct way to measure moss...

08 April 2019 5,491 1 View

Does any tardigrades can live in acid/base environments? Such as the soil of hot spring?

Hello, I want to try to find the water bears in the soil, but I am considering about the water bears that can survive in a hot and acid/base environment? Thanks!

11 January 2019 5,216 4 View

Tissue in liquid nitrogen can be used for pathological analysis?

I am concerned that hepatic tumor tissue stored in liquid nitrogen for 3-5days can be deflozen and used for pathological analysis to estimate the invasion condition

25 January 2018 3,130 2 View

Do anyone of you have a scale named cognitive flexibility scale?

19 February 2017 3,505 3 View

Any suggestion for buiding the orthotopic lung cancer?

07 August 2016 4,644 4 View

Can anyone explain reason for HPLC column back pressure and RT shift?

I recently observed the shift of the whole profile little by little due to the passage of time / long term use of the column. In 2 weeks, the shift became 0.4min much later and the back pressure...

15 March 2016 7,747 3 View

How to use lipofectamine3000(Invitrogen) to perform the packaging of lentivirus?

29 February 2016 7,916 1 View

No title

22 February 2016 5,802 7 View

What's your perception of teachers' rights and your knowledge about this issue?

Can educators share your views on teachers' rights by giving your 1. personal thoughts and 2. theoretical knowledge in this area? TQ

09 January 2013 8,963 3 View

How to code open-ended questions in SPSS?

Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...

02 March 2021 1,757 4 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

How could I take into consideration the weights of observation in a system of seemingly unrelated regressions (SUR) in rstudio?

I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...

27 February 2021 1,233 1 View

How to compare 2 samples recruited with different sampling methods?

If I want to compare characteristics of 2 groups of patients, one group is recruited from a random sample of the general public while another group is from a sample with a fixed gender (male to...

26 February 2021 3,526 3 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View