Can PCA or PMF can be done in living sample clustering?

I have a date-wise sampling for concentration of various bacteria in a indoor site. Can I use PCA (principal component analysis) or PMF (Positive Matrix Factorization) to club them into some...

03 April 2018 9,780 3 View

Precipitation Scavenging of coarse mode particle.

07 August 2017 2,895 4 View

Log normal distribution with Geometric mean?

06 July 2017 2,117 2 View

Can i perform Atomic absorption spectroscopy after solublized the filter paper in water?

I have a filter paper (that sampled air). I need to do both soluble ion analysis(by ion chromatography) and analysis for metal (by AAS) from the single paper. How can i do that? I can not cut the...

03 April 2016 6,987 9 View

Hi, is there any article about the future of the topper of school leaving examination? did they do exceptionally well?

05 June 2015 2,661 0 View

Do you know of any company or institute that makes cloud-water collector and fog water collector?

Cloudwater collectors and fog water collector.

05 June 2014 9,269 8 View

Can we get the CCN number/ CN number/ supersaturation level of a particular area from satellite data?

Satellite provide of various of information. Is there any satellite that actually provide me the CCN number/ CN number/ supersaturation level of a given area?

05 June 2014 9,574 4 View

How do I select the supersaturation level in a cloud condensation nuclei (CCN) counter?

There are several supersaturation levels starting from .2 up to 2% in a CCN counter. Which supersaturation level should I choose during an experiment? Is there any review or paper regarding this...

04 May 2014 8,292 5 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

Buffer Exchange using column packed with sephadex G-25 effect on protein concentration?

Hello, If i am doing a buffer exchange for an antibody of 1mg/mL, does the elution lose protein in the process of buffer exchange? For example, if i flow through 500 uL of 1mg/mL sample, and...

03 March 2021 6,299 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

No title

03 March 2021 5,360 2 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View