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22.302 Aktuelle Fachpublikationen in Proceedings of the National Academy of Sciences current issue

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Mechanisms underlying the social enhancement of vocal learning in songbirds [Neuroscience]

14.06.2016 | Yining Chen; Laura E. Matheson; Jon T. Sakata, Proceedings of the National Academy of Sciences current issue, 2016

Social processes profoundly influence speech and language acquisition. Despite the importance of social influences, little is known about how social interactions modulate vocal learning. Like humans, songbirds learn their vocalizations during development, and they provide an excellent opportunity ...

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Stretching out the early steps in hearing [Neuroscience]

14.06.2016 | Jonathan F. Ashmore, Proceedings of the National Academy of Sciences current issue, 2016

The molecular basis of mechanotransduction is one of the major problems, probably the unsolved problem, in hearing and balance. Sensory hair cells in both the cochlea and the vestibular systems of the inner ear have at one end a bundle of fine processes, the deflection of which initiates the ...

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Express saccades and superior colliculus responses are sensitive to short-wavelength cone contrast [Neuroscience]

14.06.2016 | Nathan J. Hall; Carol L. Colby, Proceedings of the National Academy of Sciences current issue, 2016

A key structure for directing saccadic eye movements is the superior colliculus (SC). The visual pathways that project to the SC have been reported to carry only luminance information and not color information. Short-wavelength–sensitive cones (S-cones) in the retina make little or no ...

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KATP channel gain-of-function leads to increased myocardial L-type Ca2+ current and contractility in Cantu syndrome [Physiology]

14.06.2016 | Mark D. Levin; Gautam K. Singh; Hai Xia Zhang; Keita Uchida; Beth A. Kozel; Phyllis K. Stein; Atilla Kovacs; Ruth E. ..., Proceedings of the National Academy of Sciences current issue, 2016

Cantu syndrome (CS) is caused by gain-of-function (GOF) mutations in genes encoding pore-forming (Kir6.1, KCNJ8) and accessory (SUR2, ABCC9) KATP channel subunits. We show that patients with CS, as well as mice with constitutive (cGOF) or tamoxifen-induced (icGOF) cardiac-specific Kir6.1 GOF ...

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In This Issue [This Week in PNAS]

14.06.2016 | Proceedings of the National Academy of Sciences current issue, 2016

Crop record of Austronesian expansion Rice fields in Madagascar. Although the island of Madagascar lies only 300 miles from continental Africa, the Malagasy people speak an Austronesian language associated with Southeast Asia and Pacific island nations around 3,600 miles to the east. Genetic and ...

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Assortative mating and differential fertility by phenotype and genotype across the 20th century [Social Sciences]

14.06.2016 | Dalton Conley; Thomas Laidley; Daniel W. Belsky; Jason M. Fletcher; Jason D. Boardman; Benjamin W. Domingue, Proceedings of the National Academy of Sciences current issue, 2016

This study asks two related questions about the shifting landscape of marriage and reproduction in US society over the course of the last century with respect to a range of health and behavioral phenotypes and their associated genetic architecture: (i) Has assortment on measured genetic factors ...

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Description of USP12 nuclear export sequence [Biological Sciences]

14.06.2016 | Jose Antonio Rodriguez, Proceedings of the National Academy of Sciences current issue, 2016

In PNAS, Jahan et al. (1) describe a new role for the ubiquitin-specific protease 12 (USP12) deubiquitinase in T-cell receptor (TCR) signaling. Among other findings, the authors report that USP12 is exported from the nucleus to the cytosol upon TCR activation. Although the experimental evidence ...

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Leveraging abscisic acid receptors for efficient water use in Arabidopsis [Plant Biology]

14.06.2016 | Zhenyu Yang; Jinghui Liu; Stefanie V. Tischer; Alexander Christmann; Wilhelm Windisch; Hans Schnyder; Erwin Grill, Proceedings of the National Academy of Sciences current issue, 2016

Plant growth requires the influx of atmospheric CO2 through stomatal pores, and this carbon uptake for photosynthesis is inherently associated with a large efflux of water vapor. Under water deficit, plants reduce transpiration and are able to improve carbon for water exchange leading to higher ...

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Lateral transport of soil carbon and land-atmosphere CO2 flux induced by water erosion in China [Earth, Atmospheric, and Planetary Sciences]

14.06.2016 | Yao Yue; Jinren Ni; Philippe Ciais; Shilong Piao; Tao Wang; Mengtian Huang; Alistair G. L. Borthwick; Tianhong Li; Y ..., Proceedings of the National Academy of Sciences current issue, 2016

Soil erosion by water impacts soil organic carbon stocks and alters CO2 fluxes exchanged with the atmosphere. The role of erosion as a net sink or source of atmospheric CO2 remains highly debated, and little information is available at scales larger than small catchments or regions. This study ...

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Offspring or phoronts? An alternative interpretation of the “kite-runner” fossil [Biological Sciences]

14.06.2016 | Ross Piper, Proceedings of the National Academy of Sciences current issue, 2016

Briggs et al. report on an intriguing specimen from the Silurian Herefordshire Lagerstätte of England (1). Tethered to this specimen, which is undoubtedly an arthropod, were 10 smaller animals that the authors conclude are the specimen’s offspring, and hence the find is purportedly a unique and ...

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