Institution
University of Portsmouth
Education•Portsmouth, Portsmouth, United Kingdom•
About: University of Portsmouth is a education organization based out in Portsmouth, Portsmouth, United Kingdom. It is known for research contribution in the topics: Population & Galaxy. The organization has 5452 authors who have published 14256 publications receiving 424346 citations. The organization is also known as: Portsmouth and Gosport School of Science and Art & Portsmouth and Gosport School of Science and the Arts.
Topics: Population, Galaxy, Redshift, Poison control, Fuzzy logic
Papers published on a yearly basis
Papers
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TL;DR: In this article, the authors present Feynman type diagrams for calculating the n-point function of the primordial curvature perturbation in terms of scalar field perturbations during inflation.
Abstract: We present Feynman type diagrams for calculating the n-point function of the primordial curvature perturbation in terms of scalar field perturbations during inflation. The diagrams can be used to evaluate the corresponding terms in the n-point function at tree level or any required loop level. Rules are presented for drawing the diagrams and writing down the corresponding terms in real space and Fourier space. We show that vertices can be renormalized to automatically account for diagrams with dressed vertices. We apply these rules to calculate the primordial power spectrum up to two loops, the bispectrum including loop corrections, and the trispectrum.
114 citations
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TL;DR: The authors show that although some facial muscles are not present in all individuals, and often exhibit great asymmetry (larger or absent on one side), the facial muscles that are essential in order to produce the universal facial expressions exhibited 100% occurrence and showed minimal gross asymmetry in 18 cadavers.
Abstract: Facial expression is heralded as a communication system common to all human populations, and thus is generally accepted as a biologically based, universal behavior. Happiness, sadness, fear, anger, surprise, and disgust are universally recognized and produced emotions, and communication of these states is deemed essential in order to navigate the social environment. It is puzzling, however, how individuals are capable of producing similar facial expressions when facial musculature is known to vary greatly among individuals. Here, the authors show that although some facial muscles are not present in all individuals, and often exhibit great asymmetry (larger or absent on one side), the facial muscles that are essential in order to produce the universal facial expressions exhibited 100% occurrence and showed minimal gross asymmetry in 18 cadavers. This explains how universal facial expression production is achieved, implies that facial muscles have been selected for essential nonverbal communicative function, and yet also accommodate individual variation.
114 citations
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TL;DR: The authors examined the impact of public self-consciousness and acting ability on processes and stereotypical responses during deception and found that lying was positively correlated with trying to control behavior but negatively correlated with RM scores.
Abstract: This experiment examined the impact of public self-consciousness and acting ability on processes and stereotypical responses during deception. Seventy-three nursing students were videotaped while (a) telling the truth and (b) lying about a theft they had observed. A variety of cues were coded, including criteria-based content analysis (CBCA) and reality monitoring (RM), in which high scores indicated honest responding. Compared with truth tellers, liars waited longer before giving an answer, spoke faster, made more speech hesitations, showed fewer illustrators, and showed lower CBCA and RM scores. Public self-consciousness was positively correlated with trying to control behavior but negatively correlated with RM scores. Ability to act was negatively correlated with RM scores, with showing stereotypical deceptive facial behavior (gaze aversion and smiling), with having to think hard while lying, and with being nervous while lying.
114 citations
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Liverpool John Moores University1, University of Liverpool2, Bournemouth University3, University of Cape Town4, Bureau of Land Management5, Ludwig Maximilian University of Munich6, National University of Río Negro7, Indiana University – Purdue University Fort Wayne8, Perot Museum of Nature and Science9, Brown University10, Collin College11, Chatham University12, Eastern Connecticut State University13, University of Bonn14, Emory University15, American Museum of Natural History16, University of Basel17, University of Portsmouth18, University of Queensland19, Kyoto University20, China University of Geosciences (Beijing)21
TL;DR: The aim is to make the 3D capture of ichnological data standard practice, and to provide guidance on how such 3D data can be communicated effectively and archived openly and in perpetuity.
Abstract: The collection and dissemination of vertebrate ichnological data is struggling to keep up with techniques that are becoming commonplace in the wider palaeontological field. A standard protocol is required to ensure that data is recorded, presented and archived in a manner that will be useful both to contemporary researchers, and to future generations. Primarily, our aim is to make the 3D capture of ichnological data standard practice, and to provide guidance on how such 3D data can be communicated effectively (both via the literature and other means) and archived openly and in perpetuity. We recommend capture of 3D data, and the presentation of said data in the form of photographs, false-colour images, and interpretive drawings. Raw data (3D models of traces) should always be provided in a form usable by other researchers (i.e. in an open format). If adopted by the field as a whole, the result will be a more robust and uniform literature, supplemented by unparalleled availability of datasets for future workers.
114 citations
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University of Nottingham1, Cardiff University2, Imperial College London3, Australian Astronomical Observatory4, Institut d'Astrophysique de Paris5, Max Planck Society6, University of Western Australia7, University of St Andrews8, University of Portsmouth9, University of Central Lancashire10, Mount Stromlo Observatory11, University of Hertfordshire12, Ames Research Center13, Leiden University14, Ghent University15, Complutense University of Madrid16, University of California, Irvine17, University of Sydney18, International School for Advanced Studies19, University of Padua20, UK Astronomy Technology Centre21, University of Edinburgh22, European Southern Observatory23, University of Sussex24, Carnegie Institution for Science25
TL;DR: In this article, the authors presented the dust properties and star formation histories of local submillimetre-selected galaxies, classified by optical morphology, and investigated the properties of the most passive, dusty spirals.
Abstract: We present the dust properties and star formation histories of local submillimetre-selected galaxies, classified by optical morphology. Most of the galaxies are late types and very few are early types. The early-type galaxies (ETGs) that are detected contain as much dust as typical spirals, and form a unique sample that has been blindly selected at submillimetre wavelengths. Additionally, we investigate the properties of the most passive, dusty spirals.
We morphologically classify 1087 galaxies detected in the Herschel-Astrophysical Terahertz Large Area Survey (H-ATLAS) Science Demonstration Phase data. Comparing to a control sample of optically selected galaxies, we find 5.5 per cent of luminous ETGs are detected in H-ATLAS. The H-ATLAS ETGs contain a significant mass of cold dust: the mean dust mass is 5.5 × 107 M⊙, with individual galaxies ranging from 9 × 105 to 4 × 108 M⊙. This is comparable to that of spiral galaxies in our sample, and is an order of magnitude more dust than that found for the control early-types, which have a median dust mass inferred from stacking of (0.8–4.0) × 106 M⊙ for a cold dust temperature of 25–15 K. The early-types detected in H-ATLAS tend to have bluer NUV − r colours, higher specific star formation rates and younger stellar populations than early-types which are optically selected, and may be transitioning from the blue cloud to the red sequence.
We also find that H-ATLAS and control early-types inhabit similar low-density environments. We investigate whether the observed dust in H-ATLAS early-types is from evolved stars, or has been acquired from external sources through interactions and mergers. We conclude that the dust in H-ATLAS and control ETGs cannot be solely from stellar sources, and a large contribution from dust formed in the interstellar medium or external sources is required. Alternatively, dust destruction may not be as efficient as predicted. We also explore the properties of the most passive spiral galaxies in our sample with specific star formation rate (SSFR) < 10−11 yr−1. We find these passive spirals have lower dust-to-stellar mass ratios, higher stellar masses and older stellar population ages than normal spirals. The passive spirals inhabit low-density environments similar to those of the normal spiral galaxies in our sample. This shows that the processes which turn spirals passive do not occur solely in the intermediate-density environments of group and cluster outskirts.
113 citations
Authors
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Name | H-index | Papers | Citations |
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Robert C. Nichol | 187 | 851 | 162994 |
Gavin Davies | 159 | 2036 | 149835 |
Daniel Thomas | 134 | 846 | 84224 |
Will J. Percival | 129 | 473 | 87752 |
Claudia Maraston | 103 | 362 | 59178 |
I. W. Harry | 98 | 312 | 65338 |
Timothy Clark | 95 | 1137 | 53665 |
Kevin Schawinski | 95 | 376 | 30207 |
Ashley J. Ross | 90 | 248 | 46395 |
Josep Call | 90 | 451 | 34196 |
David A. Wake | 89 | 214 | 46124 |
L. K. Nuttall | 89 | 253 | 54834 |
Stephen Neidle | 89 | 457 | 32417 |
Andrew Lundgren | 88 | 249 | 57347 |
Rita Tojeiro | 87 | 229 | 43140 |