How to filter data in R?

I have a table of 4 variables and want to short the data based on their values. I want to omit the parameters which are below 100. I used package dplyr but could not figure out much.

11 December 2017 2,743 2 View

Fabricated results are news of everyday.. Does publication in high impact is so important and does number of publications is your identity?

Fabricated results are news of everyday.. Does publication in high impact is so important and does number of publications is your identity?

10 November 2017 2,913 9 View

Any postdoc position in microbiology ?

I am looking for a postdoc position in microbiology, it will be very helpful if anyone can inform me the same and help me out.

07 August 2017 4,657 1 View

What is the benefit of using silver nanoparticle as antimicrobial agent in spite of silver nitrate which is itself a toxic?

I set few experiments with silver nanoparticle and silver nitrate and both the substance has antimicrobial property more or less similar. So my question, why not use silver nitrate directly in...

02 March 2017 5,078 3 View

Can anyone help me with total DNA extraction from water sample?

We want to do metagenomic study for some environmental water sample using traditional extraction protocol (Without using any KIT). Can anyone help me with the extraction ?

10 November 2016 4,706 4 View

How to detect whether a compound of interest secreted by bacteria in a media is containing carbohydrate or protein?

We are trying to isolate alpha amylase inhibitor from some bacteria but we are confused whether the inhibitor secreted by the bacteria in the media is carbohydrate or protein.

06 July 2016 4,624 2 View

Do Sulfur act as chemo-attractant for insect ??

During my few preliminary studies I have observed that sulfur containing chemicals induces an unknown pheromone like sensitive responses.... Does sulfur has any role in activating any chemostatic...

03 April 2016 4,926 3 View

I am stucked with rpkm and fpkm value...??

It would be very helpful.... if someone can help me out with rpkm and fpkm value ??

05 June 2015 9,651 0 View

How can I isolate mycorrhiza from soil?

I would like to isolate arbuscular mycorrhiza from tea rhizosphere. If anyone could help me with a detailed protocol?

02 March 2015 5,198 7 View

How to calculate genetic diversity and allele frequency ?

If I say I have a population size of 30 and 6 allele of a locus. Then how would I calculate the same for this?

02 March 2015 5,738 0 View

Do anyone here can help us in the field of molecular docking?

We have synthesized various metal complexes with different environment around the metals. Now to see the application of synthesized complexes we need this study also. we are also interested in...

01 March 2021 1,899 2 View

How can we obtain a modification factor for creep parameters?

I want to obtain standard creep parameters of salt rock by creep parameters of rectangular samples. Is there a modification factor to convert creep parameters of rectangular (prismatic) rock salt...

01 March 2021 7,131 1 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

Which transition metal salt precursor is best for doping? Why?

I would like to synthesize a transition metal doped TiO2 via solgel method. Hence, I would like to know which metal salt precursor to choose among Chloride, Nitrate, and Sulphate. A clear...

27 February 2021 4,285 3 View

What are the saturated salt solutions that can give specific relative humidity of 35%, 65% and 95% for conditioning wood specimens?

Due to the unavailability of climate rooms, I want to carry out an experiment that require the use of certain saturated salt solutions especially those that can condition the wood specimen to 35%,...

25 February 2021 8,139 1 View

What software programs can directly simulate Additive Manufacturing Directed Energy Deposition (DED)?

I understand there are a lot of software programs that can simulate DED by going through specific modeling, simulation, and commands. For me, that was time consuming and results were not accurate....

24 February 2021 4,428 3 View

It is necessary to reflux the Schiff base and metal salts to obtain metal complex??

24 February 2021 9,166 3 View

How can I remove deep eutectic solvents from the medium?

Dear researchers, How can I remove deep eutectic solvents from the medium? You know, generally, deep eutectic solvents consist of ammonium salts and an acid group. Is there any alternative method...

22 February 2021 3,275 3 View

Physical-chemical formation of stalactites/stalagmites. what promotes the formation/growth of these structures?

I know, or think I do, the basic idea behind these natural structures, as from what I know they form due to water dripping from the top leaving a salt deposit behind. But started to wonder about...

22 February 2021 1,400 4 View