Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Desalting using DSC- 18 SPE columns?

I am looking forward to remove excess of salt form my metal based porphyrin and trying DSC-18 columns for the same, can someone suggest me how how can one decide the polarity of the solvent to...

01 February 2021 9,076 1 View

Can we use two antibodies generated in same species for indirect Sandwich ELISA?

I have generated two antibodies against two peptide fractions of a protein in the rabbit. I want to use these two antibodies (Ab-1 and Ab-2) in indirect sandwich ELISA for the detection of...

11 January 2021 1,754 4 View

I want to quantify disturbance for wetland birds?

I have categorized the disturbance basically on movement of people and vehicle in into 3 categories. Disturbed, close to highway and movement of people from dusk to dawn. Intermediately...

30 December 2020 8,806 4 View

I am amplifying my target region through PCR, but I am getting number of unwanted band also with my target region...Why?

I have checked annealing temperature through gradient PCR. I have checked my primer in NCBI. I have checked PCR reagents concentration. Please suggest me anyone thanks

12 December 2020 1,969 2 View

What is the relationship between the type of material(ex: steel, iron etc.), thrust and torque?

If I am drilling through bars of different material(ex: iron, steel etc.) of the same thickness and under the same conditions of drill operations(feed rate and rpm), how will the torque and thrust...

06 November 2020 4,498 3 View

How to coat plasma sample (Antigen) in ELISA plate for a direct ELISA?

I have generated an antibody against an antigen. Now, I want to use the developed antibody in the detection of the unknown sample. So, I want to coat the plasma sample as antigen. How that can be...

26 October 2020 2,259 7 View

How the geospatial variability in the heat requirements of crop due to rising temperatures analyzed?

As we know that the global temperatures are increasing due to climate change which could affect the thermal needs of the crops. I want to make geospatial maps and analysis for heat requirements of...

28 September 2020 8,286 2 View

Some issues regarding electrical simulation of a Nanoowire based MSM Photodetector using Synopsys Sentaurus TCAD ?

I am simulating a NW based MSM Photodetector with Si/ CdTe/InAs NWs (modeled in SDE)with moderate doping, and have assumed a constant generation rate in the the Physics Section of SDEVICE 1....

03 September 2020 5,971 10 View

SU-8 air bubble problem?

23 August 2020 9,193 7 View

Please is there any reason that will make synthesized iron nano particle to be brown in color instead of black?

Hello all, Please I was synthesizing Iron nanoparticle using Eucalyptus leaf extract which after the first trial that I got black color particles. However, subsequently I am getting brown color...

13 December 2020 2,205 6 View

What is proximate of Eucalyptus leaves and bark?

Hi everyone! Can you help me with this answer? I need to know what is the average N,P,K, Carbohydrate content in Eucalyptus sp. plants for leaves and bark.. And if you have any papers to recommend...

26 March 2020 7,909 3 View

Can anyone help identifying the causal agent?

I observed the attached symptoms on Eucalyptus. Do you have any idea what causes these symptoms? When I tried to remove it, in was hard to be removed. It looks like tumors. Thanks in...

01 February 2020 1,430 11 View

Could anyone give me a clue on the identification of this moth?

It has been found feeding on Eucalyptus leaves in Indonesia. Family or genus, maybe? Thank you.

25 December 2019 6,971 3 View

Could anyone give me a clue on the identification of this moth?

It has been found feeding on Eucalyptus leaves in Indonesia. Family or genus, maybe? Thank you.

11 December 2019 9,625 3 View

I wonder if someone could tell me if there is any means of cloning R genes from trees without having mutant or segregating progenies?

I wonder if someone could tell me if there is any means of cloning R genes from trees such as Eucalyptus without having mutant or segregating progenies?

08 September 2019 1,449 1 View

I wonder if someone could tell me if there is any means of cloning R genes from trees without having mutant or segregating progenies?

I wonder if someone could tell me if there is any means of cloning R genes from trees such as Eucalyptus without having mutant or segregating progenies?

02 September 2019 8,798 1 View

No title

Formerly we do second fertilizing of Eucalpytus spp. on 4 month, without watering. When I made a yield projection modelling of some sample, the pieces size is 0,08 m^3/tree. So, I have this idea...

07 August 2018 4,191 0 View

18O isotope composition in leaf... anywhere?

Hi everybory, I need to perform 18 oxigen isotope analysis in plant tissue (eucalyptus leaves), but I couldn't find any lab in Brazil that offer this service. May anybody help? I can send the...

02 March 2018 5,751 6 View

What is light saturation of leaves?

I am interested to study the photosynthesis in different eucalyptus clone.

01 February 2018 5,633 4 View