How can we reconcile pre-Cambrian and Cambrian era data?

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Can I directly ligate Illumina adaptor to the end of ssDNA?

I have a sequence of ssDNA that I would like to directly ligate an Illumina sequencing adaptor to. As long as I have done the end repair (remove phosphates), can I directly ligate the adaptor to...

26 June 2024 4,522 0 View

How to simulate a metalens with backward propagating source using a Lumerical FDTD?

Dear Sir/Madam, I am currently working on a beam shaping problem and have referenced the Metalens example provided on the Ansys Lumerical website. In that example, a forward propagating plane wave...

14 June 2024 4,333 0 View

Do you know a partner, friend, colleague, or someone else who was a Canadian gay (male) nurse who cared for PLWH during the HIV/AIDS pandemic?

My name is Carl GA Jacob. I am an Auxiliary Professor in the School of Nursing at the University of Ottawa. I am the author of the 2012 research titled: The Use of Experiential Learning in the...

10 June 2024 6,253 0 View

Protocol for Coating Plates with Collagen?

Does anyone have guidance on coating 96-well plates with collagen-I? Looking for a protocol. We are using Corning® Collagen I, Rat Tail, 100 mg.

22 April 2024 6,835 1 View

How do I determine and what radical is this in this EPR graph (DMPO)?

So I'm trying to determine what radical this is captured with DMPO. How do I determine and calculate what radical this is? Thanks!!

06 April 2024 7,084 3 View

Is there any application, software or website that i can use for generating plagiarism reports, against my research, without involving a university?

In case one is not registered with a university?

25 March 2024 6,126 1 View

Is it required to send interview transcriptions for publishing qualitative research in a journal as part of data availability?

As someone engaging in ethnographic research, are we expected to disclose transcribed data to the journal where we would like publish an article?

03 March 2024 3,653 3 View

Which Promotor Sites can I use for In Vitro Transcription?

Our lab is trying to use in vitro transcription to create mRNA of our inserted on a pcDNA 3.4 TOPO plasmid. I noticed it does not have a T7 promotor sequence. Are there other available promotors...

26 February 2024 1,852 1 View

What is the solubility of 2,4-Dinitrophenol? Is it better to dissolve it in water or DMSO?

I have 250mg, and I would like to dissolve it all in the vial it came packaged in.

21 February 2024 8,846 1 View

Ideal storage conditions for stock solutions of Rotenone, Antimycin A, and 2,4-dinitrophenol?

Hello, I am starting to work with the compounds listed above. They came as a powder, and I know that I will have to dissolve them in DMSO to make stock solutions. Can I store these at 4C? Or do...

18 February 2024 6,852 2 View

What is the best set of factors for using in least cost benefit ( in Qgis ) in an archaeology map?

Hello everyone, so I'm trying to create a least cost-benefit map and factors for least cost-benefit are very varied like slope, elevations, region vegetations and etc. I must say I'm very...

25 November 2019 8,075 5 View

Can anyone help me to identify these fungal ascospores?

Dear Colleagues, I need some help in the identification of these fungal ascospores evidenced in a sediment originating from the "Caune Arago" cave (eastern Pyrenees, France) and dated to 400 000...

28 December 2018 4,964 2 View

Can anyone help me to identify these fungal ascospores?

Dear Colleagues, I need some help in the identification of these fungal ascospores evidenced in a sediment originating from the "Caune Arago" cave (eastern Pyrenees, France) and dated to 400 000...

11 December 2018 6,244 3 View

How did the early humans in the hunter-gatherer society choose their leaders?

I am curious about the social contruct of the early days of the Homo sapiens and how, at the time when they were cooperating as a hunter-gatherer society, did they choose a leader. Could anyone...

24 October 2018 7,019 7 View

Lapita patterning, experimental archaeology?

I am preparing a paper on experimental archaeology ... interested if any work has been done that sheds light on whether Lapita patterning has been recreated then tested empirically against...

29 July 2018 6,959 0 View

Lapita patterning, experimental archaeology?

I am preparing a paper on experimental archaeology ... interested if any work has been done that sheds light on whether Lapita patterning has been recreated then tested empirically against...

06 July 2018 4,767 0 View

Why do religions emerge, persist, evolve and sometimes decline and fail?

Can we explain these processes in a cross-cultural way?

06 July 2018 5,561 4 View

What is the history of Naghar (Pakhtoon) tribe?

Dear Respected RG Members, Naghar Pathan is the prominent Pakhtoons tribe who played the important role in the different Indo-Pak-Afghan dynasties. The less literature is available about the...

02 March 2018 3,005 1 View

Are there palisades or earth and / or timber constructions in PH of Northern Portugal?

I would be grateful if you could give me bibliographic indications or examples of palisades or land and / or timber constructions in Northern and Central Prehistory of Portugal and Galicia

09 February 2018 3,847 5 View

What is the role of ethnographic analogy in aiding researchers with the interpretation and analysis of aboriginal prehistoric rock art?

New efforts to deconstruct the metaphoric meanings of ancient indigenous symbols are being recognized. Carolyn Boyd's new book on the White Shaman mural of the Pecos Tradition claims working...

27 November 2017 9,157 10 View

Jack Race

Hi Jacob, I will inform two reference from you, there some information is provided with your question related.

http://creation.com/images/pdfs/tj/j22_3/j22_3_47-50.pdf

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1690629/pdf/10874755.pdf

Stephen C. Jett

My area of interest is Pre-Columbian, not Pre-Cambrian. Sorry.

--S. Jett