What recipe of homemade lenti-virus concentrator do you use?

My lab is using a lenti-X concentrator. And we are looking for a homemade recipe. I have tried this recipe....

08 February 2021 5,965 1 View

What's the problem about perovskite solar cell fabrication?

Hi, now I'm graduate student and my research part is perovskite solar cell. our research teammates started reproducibility experiment at July. and we are still doing it. however, our I-V results...

05 October 2020 5,104 11 View

Does UV spectrophotometry methods such as Bradford and Lowry methods applicable to estimation of total protein of food sample?

If yes, what preparations (or method) that we need to make for preparing food sample before using UV spectrophotometry methods? For my case, the purification of protein sample is not required as i...

21 August 2020 1,123 4 View

What causes the copy detection limitation in PCR?

Hi all, I wish to understand why doesn't all polymerase can detect a single copy of region of interest? While some polymerase is more sensitive (like dreamtaq), and some are less sensitive, what...

02 June 2020 4,397 21 View

How to Start My Research Regarding Microgrid ?

Hello there. I am new to research and my research area is about "Energy Management System in Microgrid". I had already studied some research papers to have a better understanding on that...

01 June 2020 1,046 6 View

I am reading journal paper about mangroves. And I would like to get some recommend journal related to dissolved oxygen influence on mangrove growth?

I am wondering, why my study result show that Kandelia candel and Avicennia alba species are most sensitive towards soil dissolved oxygen (DO) besides R. apiculata among the mangrove species in...

27 May 2020 1,366 3 View

Does anyone has experience with NEB "time-saver enzyme" overnight digestion?

Hi all, I used the Thermo-ANZA series for overnight digestion of plasmid backbone to ensure clean digestion without any problem. How about NEB? The website said all NEB "time-saver enzyme"...

24 March 2020 7,636 2 View

Difference between cell culture plates and flasks?

In the lab we always use culture plates (33, 60, 100, 150mm) for passing cells and conducting all sorts of experiments. I wonder what is the perks of using cell culture plates v.s. flasks? Should...

12 March 2020 1,361 2 View

Minitab Factorial Analysis - why do I get two different coefficients?

Hi everyone, I run factorial analysis on my data but obtained two different coefficients, coded & uncoded. Please could you advise which one should I use for results interpretation or have I...

09 March 2020 9,397 3 View

What statistical analysis I can use to determine the relationship of environmental parameter and mangrove aboveground biomass?

Currently, I am doing a project to estimate the aboveground biomass of mangrove at the same time also taking the environmental parameter (temp, pH, DO, soil salinity). My experimental design is...

26 February 2020 2,716 5 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 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

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

Do you kow of any database containing data on retention time, log P and polarizability for a large number of molecules?

Hi, I am a chemistry undergraduate doing my dissertation project on HPLC. In my project, I need to predict the HPLC retention time of 20 aromatic molecules, the calibration set. To do this I will...

24 February 2021 2,602 1 View

How to run raise regression in R?

if anybody know how to run raise regression in r, and raise parameter selection, please help me

24 February 2021 8,199 1 View

Can anyone suggest me the best way for Regression analysis of Accidents?

Dear Altruist, I want to make a regression analysis based on accident data. But I am not finding the necessary information about what type of regression is more applicable for analysis accident...

23 February 2021 9,956 3 View