Institution
Hartwick College
Education•Oneonta, New York, United States•
About: Hartwick College is a education organization based out in Oneonta, New York, United States. It is known for research contribution in the topics: Population & Public opinion. The organization has 223 authors who have published 435 publications receiving 11484 citations. The organization is also known as: Hartwick Seminary & Hawks.
Topics: Population, Public opinion, Politics, Genome, Context (language use)
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the authors explored whether there were differences in IQ and achievement between students who delayed school entry and those who were retained in later elementary grades, as well as any interactions with gender.
Abstract: Retention has been one way that school personnel have dealt with the problem of school failure. Some authors have proposed delayed school entry as an alternative to retention, especially since there are concerns about the effects of retention on students' self-esteem. It is unclear from the literature whether retention and delayed entry have differential outcomes on measures of school success. This study explored whether there were differences in IQ and achievement (at grades 2, 5, and 7) between students who delayed school entry and those who were retained in later elementary grades, as well as any interactions with gender. There was a significant 6-point difference in IQ, favoring the delayed-entry group. Furthermore, when the achievement test scores were analyzed using an ANCOVA with IQ as a covariate, no significant differences were identified for either group or gender. Implications for school practices are provided.
28 citations
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Lawrence Berkeley National Laboratory1, Joint Genome Institute2, Colorado School of Mines3, Hartwick College4, University of Potsdam5, University of Southern California6, California State University, Fullerton7, Bigelow Laboratory For Ocean Sciences8, University of North Alabama9, University of California, Merced10
TL;DR: Observations indicate that in low mobility environments with high microbial abundance, lysogeny is the predominant viral lifestyle, in line with the previously proposed “Piggyback-the-Winner” theory.
Abstract: Our current knowledge of host-virus interactions in biofilms is limited to computational predictions based on laboratory experiments with a small number of cultured bacteria. However, natural biofilms are diverse and chiefly composed of uncultured bacteria and archaea with no viral infection patterns and lifestyle predictions described to date. Herein, we predict the first DNA sequence-based host-virus interactions in a natural biofilm. Using single-cell genomics and metagenomics applied to a hot spring mat of the Cone Pool in Mono County, California, we provide insights into virus-host range, lifestyle and distribution across different mat layers. Thirty-four out of 130 single cells contained at least one viral contig (26%), which, together with the metagenome-assembled genomes, resulted in detection of 59 viruses linked to 34 host species. Analysis of single-cell amplification kinetics revealed a lack of active viral replication on the single-cell level. These findings were further supported by mapping metagenomic reads from different mat layers to the obtained host-virus pairs, which indicated a low copy number of viral genomes compared to their hosts. Lastly, the metagenomic data revealed high layer specificity of viruses, suggesting limited diffusion to other mat layers. Taken together, these observations indicate that in low mobility environments with high microbial abundance, lysogeny is the predominant viral lifestyle, in line with the previously proposed "Piggyback-the-Winner" theory.
28 citations
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28 citations
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University of Adelaide1, Harvard University2, Broad Institute3, University of Mainz4, University of Tübingen5, Hungarian Academy of Sciences6, Stockholm University7, Autonomous University of Madrid8, The Heritage Foundation9, University of Basel10, Autonomous University of Barcelona11, University of Valladolid12, Max Planck Society13, Hartwick College14
TL;DR: In this paper, the authors generated genome-wide data from 69 Europeans who lived between 8,000-3,000 years ago by enriching ancient DNA libraries for a target set of almost four hundred thousand polymorphisms.
Abstract: We generated genome-wide data from 69 Europeans who lived between 8,000-3,000 years ago by enriching ancient DNA libraries for a target set of almost four hundred thousand polymorphisms. Enrichment of these positions decreases the sequencing required for genome-wide ancient DNA analysis by a median of around 250-fold, allowing us to study an order of magnitude more individuals than previous studies and to obtain new insights about the past. We show that the populations of western and far eastern Europe followed opposite trajectories between 8,000-5,000 years ago. At the beginning of the Neolithic period in Europe, ~8,000-7,000 years ago, closely related groups of early farmers appeared in Germany, Hungary, and Spain, different from indigenous hunter-gatherers, whereas Russia was inhabited by a distinctive population of hunter-gatherers with high affinity to a ~24,000 year old Siberian6. By ~6,000-5,000 years ago, a resurgence of hunter-gatherer ancestry had occurred throughout much of Europe, but in Russia, the Yamnaya steppe herders of this time were descended not only from the preceding eastern European hunter-gatherers, but from a population of Near Eastern ancestry. Western and Eastern Europe came into contact ~4,500 years ago, as the Late Neolithic Corded Ware people from Germany traced ~3/4 of their ancestry to the Yamnaya, documenting a massive migration into the heartland of Europe from its eastern periphery. This steppe ancestry persisted in all sampled central Europeans until at least ~3,000 years ago, and is ubiquitous in present-day Europeans. These results provide support for the theory of a steppe origin of at least some of the Indo-European languages of Europe.
26 citations
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University of Vienna1, Harvard University2, Hartwick College3, Max Planck Society4, Deutsches Archäologisches Institut5, Francis Crick Institute6, Deccan College Post-Graduate and Research Institute7, University of California, Santa Cruz8, Washington University in St. Louis9, Universidad de San Martín de Porres10, Australian National University11, Chinese Academy of Sciences12, University of Cape Town13, University of California, Santa Barbara14, University of Arizona15, Florida Museum of Natural History16, Madurai Kamaraj University17, University of South Florida18, Spanish National Research Council19, University of Adelaide20, Duke University21, Howard Hughes Medical Institute22, Broad Institute23, Sapporo Medical University24, University of Bern25, Lithuanian Institute of History26, National University of Cordoba27, University of São Paulo28, Centre for DNA Fingerprinting and Diagnostics29, Rice University30, Graduate University for Advanced Studies31, Stony Brook University32, University of Alberta33, Centre national de la recherche scientifique34, Tel Aviv University35, University of Montana36, Leiden University37, Ludwig Maximilian University of Munich38, Centre for Cellular and Molecular Biology39, Universidad Autónoma de Yucatán40, Zhejiang University41, Xiamen University42, University of Sri Jayewardenepura43, Hazara University44
TL;DR: In this article, a group of archaeologists, anthropologists, curators and geneticists representing diverse global communities and 31 countries have proposed globally applicable ethical guidelines for ancient human DNA research.
Abstract: We are a group of archaeologists, anthropologists, curators and geneticists representing diverse global communities and 31 countries. All of us met in a virtual workshop dedicated to ethics in ancient DNA research held in November 2020. There was widespread agreement that globally applicable ethical guidelines are needed, but that recent recommendations grounded in discussion about research on human remains from North America are not always generalizable worldwide. Here we propose the following globally applicable guidelines, taking into consideration diverse contexts. These hold that: (1) researchers must ensure that all regulations were followed in the places where they work and from which the human remains derived; (2) researchers must prepare a detailed plan prior to beginning any study; (3) researchers must minimize damage to human remains; (4) researchers must ensure that data are made available following publication to allow critical re-examination of scientific findings; and (5) researchers must engage with other stakeholders from the beginning of a study and ensure respect and sensitivity to stakeholder perspectives. We commit to adhering to these guidelines and expect they will promote a high ethical standard in DNA research on human remains going forward. In this Perspective, a group representing a range of stakeholders makes the case for a set of five proposed globally applicable ethical guidelines for ancient human DNA research.
26 citations
Authors
Showing all 224 results
Name | H-index | Papers | Citations |
---|---|---|---|
Louis A. Derry | 45 | 93 | 8011 |
Michael T. Murphy | 30 | 78 | 2325 |
David W. Anthony | 25 | 51 | 4766 |
Stanley K. Sessions | 22 | 52 | 1861 |
Patrick J. Drohan | 20 | 79 | 1229 |
William J. Kowalczyk | 19 | 42 | 1190 |
Daniel Stevens | 17 | 58 | 971 |
Randall Everett Allsup | 16 | 41 | 982 |
Vanessa L. Horner | 14 | 22 | 905 |
Dorcas Brown | 13 | 20 | 2665 |
Neil DeVotta | 13 | 27 | 664 |
Laurel Elder | 13 | 40 | 454 |
Justin A. Wellman | 13 | 16 | 729 |
Melonie Walcott | 12 | 20 | 515 |
Sara R. Rinfret | 12 | 49 | 371 |