Proceedings of the National Academy of Sciences of the United States of America
IF
9.50
Papers
139660
Papers 139276
1 page of 13.9k pages (139k results)
Newest
Sherrie Xie1
Estimated H-index: 1
(University of Pennsylvania),
Alison L. Hill15
Estimated H-index: 15
(Harvard University)
+ 1 AuthorsMichael Z. Levy19
Estimated H-index: 19
(University of Pennsylvania)
Bed bugs have reemerged in the United States and worldwide over recent decades, presenting a major challenge to both public health practitioners and housing authorities. A number of municipalities have proposed or initiated policies to stem the bed bug epidemic, but little guidance is available to evaluate them. One contentious policy is disclosure, whereby landlords are obligated to notify potential tenants of current or prior bed bug infestations. Aimed to protect tenants from leasing an infes...
1 Citations Source Cite
Dimitrios Tsiotas6
Estimated H-index: 6
(University of Thessaly)
The scale-free (SF) property is a major concept in complex networks, and it is based on the definition that an SF network has a degree distribution that follows a power-law (PL) pattern. This paper highlights that not all networks with a PL degree distribution arise through a Barabasi−Albert (BA) preferential attachment growth process, a fact that, although evident from the literature, is often overlooked by many researchers. For this purpose, it is demonstrated, with simulations, that establish...
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Jeremy C. Palmer17
Estimated H-index: 17
(University of Houston)
The freezing of a liquid into a crystalline solid is a ubiquitous and familiar phase transition that affects many aspects of our daily life. The crystallization of water, for example, has broad implications for our planet’s climate and geography, and for diverse applications ranging from food and energy production to pharmaceutical formulation (1, 2). Nevertheless, numerous facets of crystallization remain incompletely understood because of the limited ability of experiments to resolve the molec...
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Ines Cortes Eusebio Camacho1
Estimated H-index: 1
(University of Manchester),
Alina Theisen2
Estimated H-index: 2
(University of Manchester)
+ 6 AuthorsAlex R. Jones13
Estimated H-index: 13
(University of Manchester)
UVR8 is a plant photoreceptor protein that regulates photomorphogenic and protective responses to UV light. The inactive, homodimeric state absorbs UV-B light, resulting in dissociation into monomers, which are considered to be the active state and comprise a β-propeller core domain and intrinsically disordered N- and C-terminal tails. The C terminus is required for functional binding to signaling partner COP1. To date, however, structural studies have only been conducted with the core domain wh...
2 Citations Source Cite
Taal Levi18
Estimated H-index: 18
(Oregon State University),
Michael Barfield18
Estimated H-index: 18
(University of Florida)
+ 3 AuthorsJohn Terborgh72
Estimated H-index: 72
(University of Florida)
Explaining the maintenance of tropical forest diversity under the countervailing forces of drift and competition poses a major challenge to ecological theory. Janzen−Connell effects, in which host-specific natural enemies restrict the recruitment of juveniles near conspecific adults, provide a potential mechanism. Janzen−Connell is strongly supported empirically, but existing theory does not address the stable coexistence of hundreds of species. Here we use high-performance computing and analyti...
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Luke T. Dunning11
Estimated H-index: 11
(University of Sheffield),
Jill K. Olofsson7
Estimated H-index: 7
(University of Sheffield)
+ 11 AuthorsJeffrey L. Bennetzen79
Estimated H-index: 79
(University of Georgia)
A fundamental tenet of multicellular eukaryotic evolution is that vertical inheritance is paramount, with natural selection acting on genetic variants transferred from parents to offspring. This lineal process means that an organism’s adaptive potential can be restricted by its evolutionary history, the amount of standing genetic variation, and its mutation rate. Lateral gene transfer (LGT) theoretically provides a mechanism to bypass many of these limitations, but the evolutionary importance an...
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Mingmin Zhou (Chinese Academy of Sciences), Nannan Chen1
Estimated H-index: 1
(Chinese Academy of Sciences)
+ 8 AuthorsAike Guo21
Estimated H-index: 21
(Chinese Academy of Sciences)
The GABAergic system serves as a vital negative modulator in cognitive functions, such as learning and memory, while the mechanisms governing this inhibitory system remain to be elucidated. In Drosophila , the GABAergic anterior paired lateral (APL) neurons mediate a negative feedback essential for odor discrimination; however, their activity is suppressed by learning via unknown mechanisms. In aversive olfactory learning, a group of dopaminergic (DA) neurons is activated on electric shock (ES) ...
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Gisela Di Venanzio1
Estimated H-index: 1
(Washington University in St. Louis),
Ki Hwan Moon1
Estimated H-index: 1
(Washington University in St. Louis)
+ 5 AuthorsMario F. Feldman31
Estimated H-index: 31
(Washington University in St. Louis)
Acinetobacter baumannii ( Ab ) is a nosocomial pathogen with one of the highest rates of multidrug resistance (MDR). This is partially due to transmissible plasmids. Many Ab strains harbor a constitutively active type VI secretion system (T6SS) that is employed to kill nonkin bacteria. T6SS and plasmid conjugation both involve cell-to-cell contact. Paradoxically, successful conjugation requires the survival of the recipient, which is the target of the T6SS. Thus, an active T6SS in either the don...
1 Citations Source Cite
Anaïs Gauthier1
Estimated H-index: 1
(University of Twente),
Christian Diddens6
Estimated H-index: 6
(Eindhoven University of Technology)
+ 2 AuthorsMeer van der Devaraj17
Estimated H-index: 17
(University of Twente)
When deposited on a hot bath, volatile drops are observed to stay in levitation: the so-called Leidenfrost effect. Here, we discuss drop dynamics in an inverse Leidenfrost situation where room-temperature drops are deposited on a liquid-nitrogen pool and levitate on a vapor film generated by evaporation of the bath. In the seconds following deposition, we observe that the droplets start to glide on the bath along a straight path, only disrupted by elastic bouncing close to the edges of the conta...
1 Citations Source Cite
Aniket Kittur30
Estimated H-index: 30
(Carnegie Mellon University),
Lixiu Yu1
Estimated H-index: 1
(Bosch)
+ 6 AuthorsDafna Shahaf11
Estimated H-index: 11
(Hebrew University of Jerusalem)
Analogy—the ability to find and apply deep structural patterns across domains—has been fundamental to human innovation in science and technology. Today there is a growing opportunity to accelerate innovation by moving analogy out of a single person’s mind and distributing it across many information processors, both human and machine. Doing so has the potential to overcome cognitive fixation, scale to large idea repositories, and support complex problems with multiple constraints. Here we lay out...
1 Citations Source Cite
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