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Science
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Disponibilidad
| Institución detectada | Período | Navegá | Descargá | Solicitá |
|---|---|---|---|---|
| No detectada | desde mar. 1997 / hasta dic. 2023 | Science Journals |
Información
Tipo de recurso:
revistas
ISSN impreso
0036-8075
ISSN electrónico
1095-9203
Editor responsable
American Association for the Advancement of Science (AAAS)
País de edición
Estados Unidos
Fecha de publicación
1880-
Cobertura temática
Tabla de contenidos
Take-Charge B Cells Create a Buzz
Mitch Leslie
<jats:p>Long regarded as the source of antibodies, B cells are gaining new respect because some appear to fine-tune the overall immune response.</jats:p>
Palabras clave: Multidisciplinary.
Pp. 144-145
Saving African Lions
Jennifer Sills (eds.)
Palabras clave: Multidisciplinary.
Pp. 146-146
A Standardized Response to Biological Invasions
Jennifer Sills (eds.)
Palabras clave: Multidisciplinary.
Pp. 146-146
Response—A Standardized Response to Biological Invasions
Jennifer Sills (eds.)
Palabras clave: Multidisciplinary.
Pp. 146-147
Neuroscientists Need Neuroethics Teaching
Jennifer Sills (eds.)
Palabras clave: Multidisciplinary.
Pp. 147-147
Corrections and Clarifications
Palabras clave: Multidisciplinary.
Pp. 147-147
Response to Comment by Goldberg et al. on “DNA from Pre-Clovis Human Coprolites in Oregon, North Americaâ€
Morten Rasmussen; Linda Scott Cummings; M. Thomas P. Gilbert; Vaughn Bryant; Colin Smith; Dennis L. Jenkins; Eske Willerslev
<jats:p> Goldberg <jats:italic>et al</jats:italic> . use data from micromorphological and Fourier transform infrared analyses to argue that Paisley Cave pre-Clovis coprolite 1374-5/5D-31-2 is of herbivore, rather than human, origin. We argue that the diagnostic capability of the techniques used by Goldberg <jats:italic>et al</jats:italic> . are limited, and we present new genetic data that support our original claims. </jats:p>
Palabras clave: Multidisciplinary.
Pp. 148-148
Response to Comment by Poinar et al . on “DNA from Pre-Clovis Human Coprolites in Oregon, North Americaâ€
M. Thomas P. Gilbert; Dennis L. Jenkins; Thomas F. G. Higham; Morten Rasmussen; Helena Malmström; Emma M. Svensson; Juan J. Sanchez; Linda Scott Cummings; Robert M. Yohe; Michael Hofreiter; Anders Götherström; Eske Willerslev
<jats:p> The arguments of Poinar <jats:italic>et al</jats:italic> . neither challenge our conclusions nor would contribute to the verification of our data. We counter their questions about the authenticity of our ancient DNA results and the reliability of the radiocarbon data and stand by the conclusion that our data provide strong evidence of pre-Clovis Native Americans. </jats:p>
Palabras clave: Multidisciplinary.
Pp. 148-148
Comment on “DNA from Pre-Clovis Human Coprolites in Oregon, North Americaâ€
Hendrik Poinar; Stuart Fiedel; Christine E. King; Alison M. Devault; Kirsti Bos; Melanie Kuch; Regis Debruyne
<jats:p> Gilbert <jats:italic>et al</jats:italic> . (Reports, 9 May 2008, p. 786) analyzed DNA from radiocarbon-dated paleofecal remains from Paisley Cave, Oregon, which ostensibly demonstrate a human presence in North America predating the well-established Clovis complex. We question the authenticity of their DNA results and argue that in the absence of intact stratigraphy and diagnostic artifacts, and in view of carbon isotope anomalies, the radiocarbon dates of the oldest specimens are unreliable. </jats:p>
Palabras clave: Multidisciplinary.
Pp. 148-148
Comment on “DNA from Pre-Clovis Human Coprolites in Oregon, North Americaâ€
Paul Goldberg; Francesco Berna; Richard I. Macphail
<jats:p> Gilbert <jats:italic>et al</jats:italic> . (Reports, 9 May 2008, p. 786) presented DNA analysis of coprolites recovered from an Oregon cave as evidence for a human presence in North America before the Clovis culture. Results of our micromorphological and Fourier transform infrared spectroscopy analyses of one of the reported coprolites are difficult to reconcile with the DNA results identifying the coprolite as human. </jats:p>
Palabras clave: Multidisciplinary.
Pp. 148-148