12 December 2022 5 2K Report

I have found several interesting bead-like fossils from the Ediacaran and Ordovician strata. If anyone has interests or good ideas about these intriguing fossils, please contact me.

More Wentao Zheng's questions See All
In PRIMER, is it possible to downweight certain taxa in multivariate community datasets to reflect uncertainty around identification??

I have a dataset with about 80 different species. As usual, some species are very easy to identify with certainty whereas others are more difficult, which means that I am less certain of my...

03 March 2021 8,066 4 View

How to get onecolumn document from standard IEEE ACCESS LateX template?

I have prepared a manuscript in IEEE Latex template, but for some purpose, I need to prepare a word file as well (detailed format is not required). Compared to two column .tex file, one column...

02 March 2021 1,830 3 View

Gel electrophoresis result for total RNA samples, 1.5 Agarose gel was used, How to improve the integrity of RNA?

Gel electrophoresis, RNA degradation, RNA extraction from fresh tissue

02 March 2021 5,433 5 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 View

OpenBCI eeg--has anyone used them?

I'm looking to try out an off-the-shelf EEG set for some exploratory work. Curious if anyone has used the OpenBCI, and how much set-up work is required. I've heard they are more difficult to get...

01 March 2021 4,128 3 View

How to remove DCU and HOBT from my reaction?

I am doing a acid and a chiral amino alcohol reaction using DCC and HOBT in DCM or THF? Can anyone suggest me how to remove DCU and HOBT from a reaction mixture??

28 February 2021 2,153 1 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

B-mercaptoethanol (BME) protocol?

Hi everybody, I have been running a multiplex IHC which allow me to stain the same tissue with different markers (Primary Ab + Secondary conjugated Ab) (AF487, AF555, AF647). Since I would like to...

27 February 2021 5,028 2 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 View

Similar questions and discussions
Any references about insects or animals that can damage or weathering of rock or fossil material?

Are there any references to insects or animals that can cause damage or weathering to the rock or fossil material? books or paper that would be nice. Thank you very much!

24 February 2021 6,805 3 View

Since I am design automatized grader for forest seeds, it is important for me to know the following?

1. Is there a difference between a dormant seed, for example, of Scots pine, a fossilized dead seed, and an active live one by spectrometric or other characteristics? 2. Is it possible to...

26 November 2020 9,275 2 View

Which are the drawbacks of using a medical CT for scanning fossils?

I am in the need of scanning some fossils for analyzing their inner structure. Unfortunately I don't have access to a proper CT or micro-CT of industrial use that suits nicely fossils and neither...

16 November 2020 1,748 6 View

Is there any report of commensalic/parasitic/symbiotic relationship between fossil communities from Indian examples?

I would like to collect and understand information on commensalic/parasitic/symbiotic interactions among fossil communities from Indian geological records. if there are any reports/publications in...

14 October 2020 6,253 1 View

No title

Despite the high CO2 of the Paleozoic atmosphere, when CO2 levels were greater than 4000 ppmv (parts per million by volume), scientific evidence indicates a period of glaciation around 445 million...

19 August 2020 6,452 3 View

Anybody can determine this micro-fossil?

Dear Researchers, I found it from Permian limestone strata in Julfa province (North-West of the Iran country). It should be mentioned, this microfossil extracted from samples collected of the...

29 March 2020 574 5 View

What is the best method to stop pyrite decomposition of a fossil?

The problematic specimen is a fossil endocast of a calamite stem from the Carboniferous. It contains some pyrite and the oxidation process is already running. What is the best method to stop the...

22 March 2020 9,246 19 View

Can somebody help me and recommend publications for extracting Radiolarian microfossils from the Middle to Upper Permian strata?

Dear researchers, I'll be grateful if it is possible to recommend any method papers for extracting Radiolarian microfossils from the Middle to Upper Permian. Sincerely yours, Soheil.

22 March 2020 5,895 4 View

What is the best way to date a phylogenomic tree?

What is the best way to date a phylogenomic tree using fossil calibration? It is more or less straightforward with a few Sanger loci using programs like BEAST, but it becomes intractable with...

26 February 2020 4,263 8 View

Phylogenetic analysis of morphological dataset adopting Bayiesian inference : which software?

Dear colleagues; I am approaching Bayiesian phylogenetic analysis, and I am dealing with (fossil) morphological datasets. I am especially interested in tip-dating and I would like to have an...

01 February 2020 1,097 7 View

Our partners will collect data and use cookies for ad personalization and measurement. Learn how we and our ad partner Google, collect and use data. Agree & close