Is this echinoid species genus Scutella?

More Hesameddin Hosseini Araghi's questions See All

About loading of Doxorobicin on MOF (drug delivery)?

Dear Researcher Respectfully, I am working on drug delivery. I synthesized Zn-MOF. I am going to load Doxorobicin on it and the study the derivery behaviour. I tried several times to load. but I...

07 February 2021 748 2 View

How can I represent a 2-parameters function in series type?

I want to represent a function like f(x,y)=sin(1/(x+y)) about [x,y]=[0,0] in series type. how can i do it in matlab or maple?

10 January 2021 8,389 5 View

Can you recommend a protocol for immunohistochemistry of mouse brain sections using anti-MAP2?

Current protocol does not give clear images.

04 January 2021 1,614 3 View

Challenges in growing deep learning model?

I implemented an image classifier and object detection model. I added a new class every day to my model and the data set growing too. I wanted to ask if anyone has the same experience? at now it...

03 January 2021 4,652 5 View

Anyone knows how to extract RNA from samples with high starch content (wheat) by using RNeasy Plant Minikit?

I am using 74904 to extract RNA from wheat seed and I have tried both of the lysis buffer. As it is mentioned it protocol, buffer RLT is the lysis buffer of choice but it may cause...

14 October 2020 9,409 7 View

What causes different microstructure in a sample?

I have synthesized high entropy oxide with (Ni Zn Cu Mn)1-x Cox composition. At x=0.05 the microstructure became rod shape and the SEM picture of the other part of that sample is different. And...

12 October 2020 5,576 5 View

How to increase zebrafish survival rate after spinal cord injury ?

Hi everyone I'm having trouble with the high mortality rate of my zebrafish after surgery. ( the surgery is done based on this article: Becker, C. G., Lieberoth, B. C., Morellini, F., Feldner,...

13 September 2020 6,781 1 View

Antibiotic screening of drug resistance cancer cell line with MDR pumps?

Hi. during our study, we faced with a problem in the screening of EPG RDB 257 cell line which is a resistant cell line due to the expression of efflux pumps such as MDR 1 which actively excrete...

27 August 2020 9,192 1 View

How to work with IQF device with the highest efficiency?

Hello I work with the IQF machine My problem is that when wet vegetables enter the machine, the efficiency of the machine decreases. What can be done to remove moisture from vegetables without...

01 August 2020 8,179 1 View

In response surface methodology, can we use sum of the response signals for two dependent variables as a function of independent variables?

RSM based on CCD is supposed to be applied for finding the optimum value of some independent variables. There are two dependent variables. Can we use sum of the response signals obtained for these...

04 July 2020 4,865 7 View

Hybodontiformes - last survivors?

Hello Everyone, I just ran into the work of Boisvert et al., 2019, in which I found fig. 4.2 a bit confusing. It shows, that Hybodontiformes (pale green) survived till the Miocene, however, as...

13 December 2020 5,180 3 View

What are the methods to determine the paleoposition of any landmass during Miocene-Pliocene?

The tectonic models define paleocontinental assembly, the supercontinent Pangea has been disassociated into independent Laurasia and Gondwana, separated by a vast oceanic Tethys. Is there any way...

10 March 2020 7,824 3 View

What do you use in bone identification ?

What kind of materials do you use in bone identification ? I`m working on Late Miocene continental vertebrates and I`ve got some small problems on postcranial bones.

10 November 2018 2,489 1 View

Is there any data about paleoentomofauna from Miocene carbonate deposits of Scontrone (Abruzzo, Central Italy)?

I'm currently making a research for a project about the ecosystem of Abruzzi-Apulia paleobioprovince during the Late Miocene. Data about vertebrates' fossils are quite commons, but I couldn't find...

08 September 2018 7,967 0 View

What are these asymmetrical compound leaves?

In a Miocene sand quarrel of Bavaria I found some compound leaves, where the distal leaflet of an alternating arranged compound leaf seems not to arise from the petiole but from the midrib within...

03 April 2018 4,369 0 View

Looking for two rare references on paleontology. Maybe someone... ?

Hello all, I am looking for two rare references that I could not find anywhere (the volume of 1891 is missing on biodiveristy library and in archive.org and the other one I could not find the part...

07 August 2017 1,842 2 View

Are there any fossil vertebrates with "spatulate" teeth that can be misinterpreted as those of sauropod dinosaurs?

In other words, does any other reptile group have similar teeth? or maybe some sort of mammal incisors that look similar?

14 June 2017 9,470 3 View

Are there any fossil vertebrates with "spatulate" teeth that can be misinterpreted as those of sauropod dinosaurs?

In other words, does any other reptile group have similar teeth? or maybe some sort of mammal incisors that look similar?

05 June 2017 9,997 4 View

Could you suggest me some readings about molecular clock in stingrays?

I need to obtain a substitution rates per site per lineage per Myr in order to calibrate a molecular dating of a phylogeny between individuals from different rivers in South america. I found just...

04 May 2017 5,883 2 View

Please, can anyone recognize such specimen and what type is it?

I have recovered this specimen from oligo/Miocene horizon, the type of associated fossils belong to fossil fish and may be belong to fish othilith? Note: the scale is 5 mm using the square that...

08 September 2016 4,772 5 View