In determination of Compressive strength of mortar , What is the basis for Water added is (P/ 4+ 3) Percentage of combined mass of cement and sand ?

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How do i calculate cut off values in ELISA?

I am running ELISA for different biomarkers against meningitis. I need to know how to calculate cutoff values for it in ELISA. There is no negative control or positive control for these kits,...

07 April 2024 3,079 1 View

Why refractive index of the Al doped PbS thin films increased with decrease of thickness of the samples ?

We used CBD method for deposition of Al doped PbS thin films. We observed that thickness of the films decreased with Al increase of Al concentration. But refractive index values are increase with...

04 April 2024 6,382 1 View

Why Thickness of the PbS thin films decreased with increase of Al concentartion?

I have deposited Al doped PbS thin films using CBD method at different concentrations from 0,2,4,6 and 8%. I was observed that thickness of the films decreases with increase of Al concentration....

25 March 2024 5,687 3 View

What are current the cloud computing & security research topics / areas ?

kindly throw some light in identifying research problems for the cloud computing & security research topics / areas

03 January 2024 179 2 View

Which primers should I use for random amplification of bacteria from CSF sample?

I am working on 16s rRNA gene sequencing. So for that I should do PCR with random primers. Suggest me with a primer that I should use, also the which universal buffer the ti can use and if...

14 December 2023 6,288 0 View

Karnaugh Map and Finite State Machine are in duality?

a symmetric karnaugh map is dual of a finite state machine. true or false? is transitive closure is suitable to a finite automata?

10 April 2023 2,635 4 View

Can we trigger using function generator instead of Grass/AM systems stimulator in neurophysiology setup?

Hi, I am planning to buy a stimulator, but thought the function generator - with the pulse generator option could be used instead as a cheaper alternative for triggering an optogenetic setup from...

27 June 2022 1,629 2 View

How to solve Autogrid error during Autodock?

I am using PyRx as platform when I load macromolecule and ligand, the molecules get loaded. When I Dock I get this message " >>Python 2.6.5 (r265:79096, Mar 19 2010, 21:48:26)" Can anyone...

02 May 2022 5,815 4 View

How to get good clear slide mount of eriophyid mite collected from a medicinal plant?

Recently I have collected eriophyid mites from leaf erineum of a medicinal plant. When I prepare slide in Hoyer's medium, it is not getting cleared fully, instead I could see fine oil globblets on...

26 September 2020 9,627 5 View

How to go about NRC Lexicon Based Sentiment Analysis?

I am working on sentiment analysis and have implemented the same using multiple libraries like: VaderSentiment, Flair, TextBlob...etc I now want to implement NRC Lexicon based. The closest ones i...

23 August 2020 4,834 1 View

Can you connect an HPLC to a Mass Spec only at a certain time point?

Can anyone explain this method? Especially the last statement where it says only at 1.5 to 2.5mins was the MS/MS connected to the UPLC. How is that possible, is it a feature in this specific...

11 August 2024 8,141 3 View

Adhesion strength of coating?

How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...

10 August 2024 942 3 View

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

London dispersion in CCl4 vs the dipole-dipoles force strength in CHCl3?

How do you tie-break and rank these two in their strength?

03 August 2024 4,471 1 View

What are the limitations and challenges of using machine learning for predicting concrete compressive strength in practical applications?

Machine learning (ML) has shown great potential in predicting the compressive strength of concrete, an important property for structural engineering. However, its practical application comes with...

03 August 2024 2,546 2 View

Where to find a gene list for CRISPRa/i library screening of regulatory factors that affect pathogenic Th17 differentiation in PBMC?

I want to perform a CRISPRa/i library screening for candidate regulatory factors that affect pathogenic Th17 differentiation in PBMC. But I am wondering how to define the size of gene library, so...

31 July 2024 2,150 0 View

Hello dear researchers. I would like to know what is a normalized mass in an EDX analysis?

EDX analisys

31 July 2024 5,947 2 View

Gas chromatography RT detection?

I am working on algal extract to which gas chromatography (Not GC-MS) spectrum I want to discover. My question is can we identify specific compounds using retention time if I compared the RT with...

29 July 2024 8,034 4 View

MAGeCK Plotting Error: Logarithmic Axis Must Have Positive Limits?

I have been running a MAGeCK test command on the terminal for a CRISPR screen to rank sgRNAs and genes based on the read count tables. However, I get only the plot of the top-ranked genes...

28 July 2024 9,811 1 View