17 research outputs found
Behold the Eye in Parkinson's Disease & Alzheimer’s Disease
No full textThis eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contac
Behold the Eye in Parkinson's Disease & Alzheimer’s Disease
No full textThis eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contac
Radiocarbon dating of Makuri Le boom, a very old African baobab from Nyae Nyae, Namibia
Get PDF© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Patrut, R. T., Patrut, A., Rakosy, D., Rakosy, L., Lowy, D. A., Von Redenf, K. F., & Bodis, J. Radiocarbon dating of Makuri Le boom, a very old African baobab from Nyae Nyae, Namibia. Studia Universitatis Babes-Bolyai Chemia, 65(2), (2020): 149-159, doi:10.24193/subbchem.2020.2.12.The article reports the AMS (accelerator mass spectrometry) radiocarbon dating results of Makuri Lê boom, a very large African baobab from Nyae Nyae Conservancy, Namibia. The investigation of this superlative baobab shows that it consists of 12 independent stems of different dimensions, which belong to three generations. Makuri Lê boom has an open ring-shaped structure, a type of architecture which allows baobabs to reach very large sizes and old ages. The oldest sample has a radiocarbon date of 1602 ± 17 BP, which corresponds to a calibrated age of 1520 ± 35 calendar yr. By this value, Makuri Lê boom becomes one of the oldest dated baobabs and angiosperms with accurate dating results.The research was funded by the Romanian Ministry of National Education CNCS-UEFISCDI under grant PN-III-P4-ID-PCE-2016-0776, Nr. 90/2017
AMS RADIOCARBON DATING OF THE LARGE PEDUNCULATE OAK OF MERCHEAŞA, ROMANIA
Get PDFThe paper reports the AMS (accelerator mass spectrometry) radiocarbon dating results of the large pedunculate oak of Mercheaşa, Romania, which has a circumference of 10.16 m. Two wood samples were extracted from the trunk and from the largest horizontal branch. Five segments from these samples were analysed by AMS radiocarbon. The oldest dated sample segment originates from the largest horizontal branch, very close to its geometrical centre. It had a radiocarbon date of 386 ± 45 BP, which corresponds to a calibrated age of 540 ± 35 calendar years. This value indicates an age of 560 ± 35 years for the oak of Mercheaşa
RADIOCARBON INVESTIGATION OF TWO LARGE AFRICAN BAOBABS FROM KIZIMKAZI, ZANZIBAR, TANZANIA
Get PDFThe article reports the AMS (accelerator mass spectrometry) radiocarbon dating results of Kizimkazi Big tree and Kizimkazi II baobab, two large African baobabs from Zanzibar, Tanzania. Unfortunately, both baobabs toppled and died in 2018 and 2020, during violent storms. The investigation of the two baobabs evinced that the first of them, which was also the biggest tree of Tanzania, consisted of 5 stems, out of which 2 were false ones, and had a closed ring-shaped structure. The second baobab was composed of 4 fused stems and had a cluster structure. Several wood samples were collected from the two baobabs. Seven segments were extracted from the samples and dated by radiocarbon. The oldest segment from Kizimkazi Big tree had a radiocarbon date of 312 ± 18 BP, corresponding to a calibrated age of 380 ± 10 calendar years. According to dating results, the Kizimkazi Big tree died at the age of 400 ± 25 years. The oldest segment from Kizimkazi II baobab had a radiocarbon date of 137 ± 17 BP, corresponding to a calibrated age of 190 ± 10 calendar years. This value indicates that the Kizimkazi II baobab was 250 ± 25 years old when it died
Role of Human Leukocyte Antigens (HLA) in Autoimmune Diseases
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Commercial SOI sensor technology
No full textWe present a platform for the deployment of SOI based sensors in commercialapplications. The platform is designed from a systems perspective and includes allaspects of a SOI sensor system, including sensor head itself, the communicationsinfrastructure and a customized interrogation system.Dynamics of Micro and Nano System
Radiocarbon dating of the old ash of Aiton, Romania
Get PDFAuthor Posting. © Studia Chemia, 2018. Studia Universitatis Babes-Bolyai Seria Chemia is an Open Access Journal (read, download, copy, distribute, print for research use, search, or link to the full texts of articles). The definitive version was published in Studia Universitatis Babes-Bolyai, Seria Chemia 63, no. 3 (2018): 41-48, doi:10.24193/subbchem.2018.3.03.The article reports the AMS (accelerator mass spectrometry) radiocarbon investigation results of the old common ash of Aiton. Five wood samples were collected from the trunk of the tree. The deepest ends of the samples were analysed by AMS radiocarbon. We found radiocarbon dates between 165 ± 20 BP and 240 ± 18 BP, which correspond to calibrated ages of 230 – 360 years. These results, combined with a ring counting estimate, indicate an age of 330 ± 30 years for the ash of Aiton. By this value, the ash of Aiton becomes the oldest known common ash with accurate dating results.The research was funded by the Romanian Ministry of Research and Innovation CNCS-UEFISCDI under grant PN-III-P4-ID-PCE-2016-0776, Nr. 90/2017
Radiocarbon Dating of a Very Large African Baobab from Limpopo, South Africa: Investigation of the Sagole Big Tree
No full textAfrican baobabs with double closed ring-shaped structures and two separate false cavities : radiocarbon investigation of the baobab of Golconda Fort
Get PDFAuthor Posting. © Studia Chemia, 2016. This article is posted here by permission of Studia Chemia for personal use, not for redistribution. The definitive version was published in Studia Chemia 2016, no. 4 (2016): 21-30.The article discloses the results of radiocarbon investigation
of the baobab of Golconda Fort, Hyderābād, India, which is the largest
African baobab outside Africa. Two wood samples were collected from
the large inner cavity; of these we extracted several segments for AMS
(accelerator mass spectrometry) radiocarbon dating. The oldest sample
segment had a radiocarbon date of 342 ± 22 BP, which corresponds to a
calibrated age of 430 ± 20 yr. We estimate that the oldest part of the
baobab has an age of 475 ± 50 yr. The investigation of the baobab of
Golconda Fort revealed that it consists of 6 + 2 fused stems. Six stems
build two rings that close two distinct false cavities, while two additional
stems are located outside the rings. We called this new type of architecture
double closed ring-shaped structure with two separate false cavities.The research was funded by the Romanian Ministry of National Education
CNCS-UEFISCDI under grant PN-II-ID-PCE-2013-76
