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Süleyman Yücel Senyurt

Bio: Süleyman Yücel Senyurt is an academic researcher from Gazi University. The author has contributed to research in topics: Mathematics & Frenet–Serret formulas. The author has an hindex of 1, co-authored 1 publications receiving 190 citations.

Papers
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Journal ArticleDOI
29 Jun 2018-Science
TL;DR: Analysis of ancient whole-genome sequences from across Inner Asia and Anatolia shows that the Botai people associated with the earliest horse husbandry derived from a hunter-gatherer population deeply diverged from the Yamnaya, and suggests distinct migrations bringing West Eurasian ancestry into South Asia before and after, but not at the time of, YamNaya culture.
Abstract: The Yamnaya expansions from the western steppe into Europe and Asia during the Early Bronze Age (~3000 BCE) are believed to have brought with them Indo-European languages and possibly horse husbandry. We analyze 74 ancient whole-genome sequences from across Inner Asia and Anatolia and show that the Botai people associated with the earliest horse husbandry derived from a hunter-gatherer population deeply diverged from the Yamnaya. Our results also suggest distinct migrations bringing West Eurasian ancestry into South Asia before and after but not at the time of Yamnaya culture. We find no evidence of steppe ancestry in Bronze Age Anatolia from when Indo-European languages are attested there. Thus, in contrast to Europe, Early Bronze Age Yamnaya-related migrations had limited direct genetic impact in Asia.

273 citations

Journal ArticleDOI
22 May 2022-Symmetry
TL;DR: In this article , the authors examined the dual expression of Valeontis' concept of parallel p-equidistant ruled surfaces well known in Euclidean 3-space, according to the study mapping.
Abstract: In this study, we examine the dual expression of Valeontis’ concept of parallel p-equidistant ruled surfaces well known in Euclidean 3-space, according to the Study mapping. Furthermore, we show that the dual part of the dual angle on the unit dual sphere corresponds to the p-distance. We call these ruled surfaces we obtained “dual parallel equidistant ruled surfaces” and we briefly denote them with “DPERS”. Furthermore, we find the Blaschke vectors, the Blaschke invariants and the striction curves of these DPERS and we give the relationships between these elements. Moreover, we show the relationships between the Darboux screws, the instantaneous screw axes, the instantaneous dual Pfaff vectors and dual Steiner rotation vectors of these surfaces. Finally, we give an example, which we reinforce this article, and we explain all of these features with the figures on the example. Furthermore, we see that the corresponding dual curves on the dual unit sphere to these DPERS are such that one of them is symmetric with respect to the imaginary symmetry axis of the other.

22 citations

Journal ArticleDOI
08 Sep 2022-Symmetry
TL;DR: In this paper , parallel q-equidistant ruled surfaces are defined such that the binormal vectors of given two differentiable curves are parallel along the striction curves of their corresponding binormal ruled surfaces, and the distance between the asymptotic planes is constant at proper points.
Abstract: In this paper, parallel q-equidistant ruled surfaces are defined such that the binormal vectors of given two differentiable curves are parallel along the striction curves of their corresponding binormal ruled surfaces, and the distance between the asymptotic planes is constant at proper points, which is related to symmetry. The characterizations and some other useful relations are drawn for these surfaces as well. If the surfaces are considered to be closed, then the integral invariants such as the pitch, the angle of the pitch, and the drall of them are given. Finally, some examples are presented to indicate that the distance between the proper points on the corresponding asymptotic planes is always constant.

17 citations

Journal ArticleDOI
10 Jan 2023-Symmetry
TL;DR: In this paper , the Gaussian curvatures of the dual spherical indicatrix curves formed on unit dual sphere by the Blaschke vectors and dual instantaneous Pfaff vectors of dual parallel equidistant ruled surfaces (DPERS) were calculated.
Abstract: In this paper, we calculate the Gaussian curvatures of the dual spherical indicatrix curves formed on unit dual sphere by the Blaschke vectors and dual instantaneous Pfaff vectors of dual parallel equidistant ruled surfaces (DPERS) and we give the relationships between these curvatures. In addition to—in cases where the base curves of these DPERS are closed—computing the dual integral invariants of the indicatrix curves. Additionally, we show the relationships between them. Finally, we provide an example for each of these indicatrix curves.

8 citations

Journal ArticleDOI
TL;DR: In this paper , the Darboux trihedrons of these three curves and the instantaneous rotation vectors of these trihedron are separately calculated for each of these six cases, and the relationships between these vectors are given.
Abstract: The parameter curves [Formula: see text] and [Formula: see text] intersecting under the angle [Formula: see text] on a timelike surface and any curve [Formula: see text] passing through the same point with these curves have six different cases according to their causal characters. In this study, the Darboux trihedrons of these three curves and the Darboux instantaneous rotation vectors of these trihedrons are separately calculated for each of these six cases, and the relationships between these vectors are given. In addition, some theorems and results have been obtained on this surface. Besides, the special cases where the parameter curves [Formula: see text] and [Formula: see text] intersect perpendicularly are examined and these cases are compared with previous studies.

7 citations


Cited by
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Iosif Lazaridis1, Iosif Lazaridis2, Nick Patterson2, Alissa Mittnik3, Gabriel Renaud4, Swapan Mallick1, Swapan Mallick2, Karola Kirsanow5, Peter H. Sudmant6, Joshua G. Schraiber7, Joshua G. Schraiber6, Sergi Castellano4, Mark Lipson8, Bonnie Berger2, Bonnie Berger8, Christos Economou9, Ruth Bollongino5, Qiaomei Fu4, Kirsten I. Bos3, Susanne Nordenfelt2, Susanne Nordenfelt1, Heng Li2, Heng Li1, Cesare de Filippo4, Kay Prüfer4, Susanna Sawyer4, Cosimo Posth3, Wolfgang Haak10, Fredrik Hallgren11, Elin Fornander11, Nadin Rohland2, Nadin Rohland1, Dominique Delsate12, Michael Francken3, Jean-Michel Guinet12, Joachim Wahl, George Ayodo, Hamza A. Babiker13, Hamza A. Babiker14, Graciela Bailliet, Elena Balanovska, Oleg Balanovsky, Ramiro Barrantes15, Gabriel Bedoya16, Haim Ben-Ami17, Judit Bene18, Fouad Berrada19, Claudio M. Bravi, Francesca Brisighelli20, George B.J. Busby21, Francesco Calì, Mikhail Churnosov22, David E. C. Cole23, Daniel Corach24, Larissa Damba, George van Driem25, Stanislav Dryomov26, Jean-Michel Dugoujon27, Sardana A. Fedorova28, Irene Gallego Romero29, Marina Gubina, Michael F. Hammer30, Brenna M. Henn31, Tor Hervig32, Ugur Hodoglugil33, Aashish R. Jha29, Sena Karachanak-Yankova34, Rita Khusainova35, Elza Khusnutdinova35, Rick A. Kittles30, Toomas Kivisild36, William Klitz7, Vaidutis Kučinskas37, Alena Kushniarevich38, Leila Laredj39, Sergey Litvinov38, Theologos Loukidis40, Theologos Loukidis41, Robert W. Mahley42, Béla Melegh18, Ene Metspalu43, Julio Molina, Joanna L. Mountain, Klemetti Näkkäläjärvi44, Desislava Nesheva34, Thomas B. Nyambo45, Ludmila P. Osipova, Jüri Parik43, Fedor Platonov28, Olga L. Posukh, Valentino Romano46, Francisco Rothhammer47, Francisco Rothhammer48, Igor Rudan13, Ruslan Ruizbakiev49, Hovhannes Sahakyan38, Hovhannes Sahakyan50, Antti Sajantila51, Antonio Salas52, Elena B. Starikovskaya26, Ayele Tarekegn, Draga Toncheva34, Shahlo Turdikulova49, Ingrida Uktveryte37, Olga Utevska53, René Vasquez54, Mercedes Villena54, Mikhail Voevoda55, Cheryl A. Winkler56, Levon Yepiskoposyan50, Pierre Zalloua1, Pierre Zalloua57, Tatijana Zemunik58, Alan Cooper10, Cristian Capelli21, Mark G. Thomas41, Andres Ruiz-Linares41, Sarah A. Tishkoff59, Lalji Singh60, Kumarasamy Thangaraj61, Richard Villems38, Richard Villems43, Richard Villems62, David Comas63, Rem I. Sukernik26, Mait Metspalu38, Matthias Meyer4, Evan E. Eichler6, Joachim Burger5, Montgomery Slatkin7, Svante Pääbo4, Janet Kelso4, David Reich1, David Reich64, David Reich2, Johannes Krause3, Johannes Krause4 
Harvard University1, Broad Institute2, University of Tübingen3, Max Planck Society4, University of Mainz5, University of Washington6, University of California, Berkeley7, Massachusetts Institute of Technology8, Stockholm University9, University of Adelaide10, The Heritage Foundation11, National Museum of Natural History12, University of Edinburgh13, Sultan Qaboos University14, University of Costa Rica15, University of Antioquia16, Rambam Health Care Campus17, University of Pécs18, Al Akhawayn University19, Catholic University of the Sacred Heart20, University of Oxford21, Belgorod State University22, University of Toronto23, University of Buenos Aires24, University of Bern25, Russian Academy of Sciences26, Paul Sabatier University27, North-Eastern Federal University28, University of Chicago29, University of Arizona30, Stony Brook University31, University of Bergen32, Illumina33, Sofia Medical University34, Bashkir State University35, University of Cambridge36, Vilnius University37, Estonian Biocentre38, University of Strasbourg39, Amgen40, University College London41, Gladstone Institutes42, University of Tartu43, University of Oulu44, Muhimbili University of Health and Allied Sciences45, University of Palermo46, University of Tarapacá47, University of Chile48, Academy of Sciences of Uzbekistan49, Armenian National Academy of Sciences50, University of North Texas51, University of Santiago de Compostela52, University of Kharkiv53, Higher University of San Andrés54, Novosibirsk State University55, Leidos56, Lebanese American University57, University of Split58, University of Pennsylvania59, Banaras Hindu University60, Centre for Cellular and Molecular Biology61, Estonian Academy of Sciences62, Pompeu Fabra University63, Howard Hughes Medical Institute64
01 Sep 2014
TL;DR: The authors showed that most present-day Europeans derive from at least three highly differentiated populations: west European hunter-gatherers, ancient north Eurasians related to Upper Palaeolithic Siberians, who contributed to both Europeans and Near Easterners; and early European farmers, who were mainly of Near Eastern origin but also harboured west European hunters-gatherer related ancestry.
Abstract: We sequenced the genomes of a ∼7,000-year-old farmer from Germany and eight ∼8,000-year-old hunter-gatherers from Luxembourg and Sweden. We analysed these and other ancient genomes with 2,345 contemporary humans to show that most present-day Europeans derive from at least three highly differentiated populations: west European hunter-gatherers, who contributed ancestry to all Europeans but not to Near Easterners; ancient north Eurasians related to Upper Palaeolithic Siberians, who contributed to both Europeans and Near Easterners; and early European farmers, who were mainly of Near Eastern origin but also harboured west European hunter-gatherer related ancestry. We model these populations' deep relationships and show that early European farmers had ∼44% ancestry from a 'basal Eurasian' population that split before the diversification of other non-African lineages.

442 citations

Journal ArticleDOI
Vagheesh M. Narasimhan1, Nick Patterson2, Nick Patterson3, Priya Moorjani4, Nadin Rohland1, Nadin Rohland2, Rebecca Bernardos1, Swapan Mallick1, Swapan Mallick2, Swapan Mallick5, Iosif Lazaridis1, Nathan Nakatsuka1, Nathan Nakatsuka6, Iñigo Olalde1, Mark Lipson1, Alexander M. Kim1, Luca M. Olivieri, Alfredo Coppa7, Massimo Vidale8, James Mallory9, Vyacheslav Moiseyev10, Egor Kitov10, Egor Kitov11, Janet Monge12, Nicole Adamski1, Nicole Adamski5, Neel Alex4, Nasreen Broomandkhoshbacht5, Nasreen Broomandkhoshbacht1, Francesca Candilio13, Kimberly Callan1, Kimberly Callan5, Olivia Cheronet13, Olivia Cheronet14, Brendan J. Culleton15, Matthew Ferry5, Matthew Ferry1, Daniel Fernandes, Suzanne Freilich14, Beatriz Gamarra13, Daniel Gaudio13, Mateja Hajdinjak16, Eadaoin Harney1, Eadaoin Harney5, Thomas K. Harper15, Denise Keating13, Ann Marie Lawson1, Ann Marie Lawson5, Matthew Mah5, Matthew Mah1, Matthew Mah2, Kirsten Mandl14, Megan Michel5, Megan Michel1, Mario Novak13, Jonas Oppenheimer5, Jonas Oppenheimer1, Niraj Rai17, Niraj Rai18, Kendra Sirak1, Kendra Sirak13, Kendra Sirak19, Viviane Slon16, Kristin Stewardson1, Kristin Stewardson5, Fatma Zalzala1, Fatma Zalzala5, Zhao Zhang1, Gaziz Akhatov, Anatoly N. Bagashev, Alessandra Bagnera, Bauryzhan Baitanayev, Julio Bendezu-Sarmiento20, Arman A. Bissembaev, Gian Luca Bonora, T Chargynov21, T. A. Chikisheva10, Petr K. Dashkovskiy22, Anatoly P. Derevianko10, Miroslav Dobeš23, Katerina Douka16, Katerina Douka24, Nadezhda Dubova10, Meiram N. Duisengali, Dmitry Enshin, Andrey Epimakhov25, Alexey Fribus26, Dorian Q. Fuller27, Dorian Q. Fuller28, Alexander Goryachev, Andrey Gromov10, S. P. Grushin22, Bryan Hanks29, Margaret A. Judd29, Erlan Kazizov, Aleksander Khokhlov30, Aleksander P. Krygin, Elena Kupriyanova31, Pavel Kuznetsov30, Donata Luiselli32, Farhod Maksudov33, Aslan M. Mamedov, Talgat B. Mamirov, Christopher Meiklejohn34, Deborah C. Merrett35, Roberto Micheli, Oleg Mochalov30, Samariddin Mustafokulov33, Ayushi Nayak16, Davide Pettener32, Richard Potts36, Dmitry Razhev, Marina Petrovna Rykun37, Stefania Sarno32, Tatyana M. Savenkova, Kulyan Sikhymbaeva, Sergey Mikhailovich Slepchenko, Oroz A. Soltobaev21, Nadezhda Stepanova10, Svetlana V. Svyatko9, Svetlana V. Svyatko10, Kubatbek Tabaldiev, Maria Teschler-Nicola38, Maria Teschler-Nicola14, Alexey A. Tishkin22, Vitaly V. Tkachev, Sergey Vasilyev10, Petr Velemínský39, Dmitriy Voyakin, Antonina Yermolayeva, Muhammad Zahir40, Muhammad Zahir16, Valery S. Zubkov, A. V. Zubova10, Vasant Shinde41, Carles Lalueza-Fox42, Matthias Meyer16, David W. Anthony43, Nicole Boivin16, Kumarasamy Thangaraj17, Douglas J. Kennett15, Douglas J. Kennett44, Michael D. Frachetti45, Ron Pinhasi14, Ron Pinhasi13, David Reich 
06 Sep 2019-Science
TL;DR: It is shown that Steppe ancestry then integrated further south in the first half of the second millennium BCE, contributing up to 30% of the ancestry of modern groups in South Asia, supporting the idea that the archaeologically documented dispersal of domesticates was accompanied by the spread of people from multiple centers of domestication.
Abstract: By sequencing 523 ancient humans, we show that the primary source of ancestry in modern South Asians is a prehistoric genetic gradient between people related to early hunter-gatherers of Iran and Southeast Asia. After the Indus Valley Civilization's decline, its people mixed with individuals in the southeast to form one of the two main ancestral populations of South Asia, whose direct descendants live in southern India. Simultaneously, they mixed with descendants of Steppe pastoralists who, starting around 4000 years ago, spread via Central Asia to form the other main ancestral population. The Steppe ancestry in South Asia has the same profile as that in Bronze Age Eastern Europe, tracking a movement of people that affected both regions and that likely spread the distinctive features shared between Indo-Iranian and Balto-Slavic languages.

354 citations

Journal ArticleDOI
07 Dec 2018-Science
TL;DR: Analysis of the oldest genomes suggests that there was an early split within Beringian populations, giving rise to the Northern and Southern lineages, and that the early population spread widely and rapidly suggests that their access to large portions of the hemisphere was essentially unrestricted, yet there are genomic and archaeological hints of an earlier human presence.
Abstract: Studies of the peopling of the Americas have focused on the timing and number of initial migrations. Less attention has been paid to the subsequent spread of people within the Americas. We sequenced 15 ancient human genomes spanning from Alaska to Patagonia; six are ≥10,000 years old (up to ~18× coverage). All are most closely related to Native Americans, including those from an Ancient Beringian individual and two morphologically distinct "Paleoamericans." We found evidence of rapid dispersal and early diversification that included previously unknown groups as people moved south. This resulted in multiple independent, geographically uneven migrations, including one that provides clues of a Late Pleistocene Australasian genetic signal, as well as a later Mesoamerican-related expansion. These led to complex and dynamic population histories from North to South America.

211 citations

Journal ArticleDOI
13 Jun 2019-Nature
TL;DR: Analysis of 34 newly recovered ancient genomes from northeastern Siberia reveal at least three major migration events in the late Pleistocene population history of the region, including an initial peopling by a previously unknown Palaeolithic population of ‘Ancient North Siberians’ and a Holocene migration of other East Asian-related peoples, which generated the mosaic genetic make-up of contemporary peoples.
Abstract: Northeastern Siberia has been inhabited by humans for more than 40,000 years but its deep population history remains poorly understood. Here we investigate the late Pleistocene population history of northeastern Siberia through analyses of 34 newly recovered ancient genomes that date to between 31,000 and 600 years ago. We document complex population dynamics during this period, including at least three major migration events: an initial peopling by a previously unknown Palaeolithic population of ‘Ancient North Siberians’ who are distantly related to early West Eurasian hunter-gatherers; the arrival of East Asian-related peoples, which gave rise to ‘Ancient Palaeo-Siberians’ who are closely related to contemporary communities from far-northeastern Siberia (such as the Koryaks), as well as Native Americans; and a Holocene migration of other East Asian-related peoples, who we name ‘Neo-Siberians’, and from whom many contemporary Siberians are descended. Each of these population expansions largely replaced the earlier inhabitants, and ultimately generated the mosaic genetic make-up of contemporary peoples who inhabit a vast area across northern Eurasia and the Americas. Analyses of 34 ancient genomes from northeastern Siberia, dating to between 31,000 and 600 years ago, reveal at least three major migration events in the late Pleistocene population history of the region.

211 citations

Journal ArticleDOI
11 Jun 2020-Cell
TL;DR: This study demonstrates the most deeply divergent connection between Upper Paleolithic Siberians and the First Americans and reveals human and pathogen mobility across Eurasia during the Bronze Age.

181 citations