Any recommendations for methods to analyze elephant space-use (using GPS) and correlating this with changes in NDVI?

For my Masters I am looking into elephant space-use and its effect on vegetation change. I have elephant GPS collar data and was going to use Google Earth Engine to obtain NDVI values. I would...

16 February 2021 7,097 3 View

Only one clone of purified protein is active?

Hi! I'm wondering if anyone else has had a situation where they are purifying an enzyme, and only one clone is active? The cloned gene is genetically identical to other clones, but only this one...

18 September 2020 7,984 3 View

How can an enzyme have multiple optimal pH values?

Hi! I've been studying a particular enzyme that in in vitro experiments exhibits two optimal pH's. All other parameters are the same (incubation time, substrate, temperature, salt concentration,...

16 August 2020 6,073 10 View

Best phylogenetic analysis for a small data set?

I have a small data set consisting of 16 sequences, 919bp each. I am trying to determine the phylogenetic relationship among the individuals. I am wondering if the neighbor-joining method, maximum...

15 July 2020 3,240 8 View

(Geneious software) How do you DELETE the 'bad nucleotide' symbol of "?" from genome sequence?

Hi everyone! (I'm hoping you're all safe and healthy) I could really use some help figuring out how to remove the bad nucleotide symbol "???" in my Geneious sequence. (See attached photo) Before...

18 May 2020 7,840 1 View

What are the spectroscopic technics used in biological chemistry or biology ?

I want to kno more about the technicqs people usually use to learn how it works.

21 February 2020 6,917 2 View

How do I interpret interactions with the covariate in a repeated measures ANOVA?

I am running an analysis on repeated measures perceptual data (psychology). There are three categorical factors which specify the conditions participants viewed the stimuli in (e.g mode of...

30 January 2020 2,209 3 View

Can I perform XRD analysis on polished sample?

Dear All, I have to analyze a Co based superally sample where are present two different crystal structures of Co (the cubic and the exagonal one). I'm sure of it because I have analyzed the...

14 November 2018 3,667 3 View

Is there a product that allows mammalian cell lines to be stored at ambient temperature (18-25oC) for 96 h?

Hi I'm looking for a reagent that can be used to maintain cell viability at room temperature for at least 96 h. Does anyone have a recommendation? Thanks.

02 August 2018 8,793 4 View

SPSS:What should I do when my -2 log likelihood is really high, r squared value really low and a 0.000 result for the Hosmer-Lemeshow goodness-of-fit?

I am currently doing my masters thesis which involves data analysis using SPSS, the dataset has over 135000 items and numerous variables. I performed a test of multicollinearity for my...

22 July 2018 2,214 3 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

How to get the heading of real-time credit card dataset ?

I am working with the Credit card dataset. I am aware of the fact that the Banks and financial institutions do not share the dataset with third-party companies or researchers. I just need to know...

18 February 2021 9,186 3 View

How to improve the buffer capacity of sea water?

Hello everyone I would like to improve the buffer capacity of seawater (pH ~8) in order to dissolve as much CO2 as possible without dropping the pH below 7.5 (a range between 7 - 7.5 is...

17 February 2021 2,797 2 View

Room Occupancy Calculation ?

15 February 2021 1,997 6 View

How to increase bacterial concentration of DNA from Laser capture microdissection samples?

I used laser capture microdissection, selected specific bacteria presented in ethanol-fixed slides. And DNA was extracted by Qiamp mini kit. The problem right now is we have pretty low...

09 February 2021 3,908 2 View

Can we help fellow mathematicians get free ?

https://terrytao.wordpress.com/2021/02/08/a-statement-from-mathematics-department-faculty-at-stanford-and-mit/ Terry Tao blogged about this unfortunate event. Kindly share among Mathematical...

08 February 2021 1,055 3 View

Can we model an Arima (0,0,0)(0,0,0) with pulse intervention?

Hello, i got trouble when i try identify a intervention analysis about disaster impact on night time light intensity. i have 65 month data from January 2015 until may 2020. based on...

06 February 2021 10,018 4 View