5
5.0
Apr 8, 2021
04/21
by
(Fiffer)
data
eye 5
favorite 0
comment 0
My wife cut the tip of her finger and needed something to provide protection, SketchUp and 3d printing to the rescue!
Topics: Finger_sp, figner_splint, stl, Other, thingiverse
5
5.0
Apr 8, 2021
04/21
by
(fenris)
data
eye 5
favorite 0
comment 0
Customized version of http://www.thingiverse.com/thing:355019 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=355019
Topics: stl, Pets, thingiverse, customized
5
5.0
Jun 30, 2018
06/18
by
A. Skopal; H. Drechsel; T. N. Tarasova; T. Kato; M. Fujii; F. Teyssier; O. Garde; J. Guarro; J. Edlin; C. Buil; D. Antao; J. N. Terry; T. Lemoult; S. Charbonnel; T. Bohlsen; A. Favaro; K. Graham
texts
eye 5
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We determine the temporal evolution of the luminosity L(WD), radius R(WD) and effective temperature Teff of the white dwarf (WD) pseudophotosphere of V339 Del from its discovery to around day 40. Another main objective was studying the ionization structure of the ejecta. These aims were achieved by modelling the optical/near-IR spectral energy distribution (SED) using low-resolution spectroscopy (3500 - 9200 A), UBVRcIc and JHKLM photometry. During the fireball stage (Aug. 14.8 - 19.9, 2013),...
Topics: Astrophysics, Solar and Stellar Astrophysics
Source: http://arxiv.org/abs/1407.8212
67
67
Oct 12, 2014
10/14
by
Aahlin, Eirik K; von Meyenfeldt, Maarten; Dejong, Cornelius HC; Ljungqvist, Olle; Fearon, Kenneth C; Lobo, Dileep N; Demartines, Nicolas; Revhaug, Arthur; Wigmore, Stephen J; Lassen, Kristoffer
texts
eye 67
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This article is from Perioperative Medicine , volume 3 . Abstract Background: The aim of this study was to survey the relative importance of postoperative recovery targets and perioperative care items, as perceived by a large group of international dedicated professionals. Methods: A questionnaire with eight postoperative recovery targets and 13 perioperative care items was mailed to participants of the first international Enhanced Recovery After Surgery (ERAS) congress and to authors of papers...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4118075
5
5.0
Jun 30, 2018
06/18
by
Alejandro Edera; Yanela Strappa; Facundo Bromberg
texts
eye 5
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Markov networks are models for compactly representing complex probability distributions. They are composed by a structure and a set of numerical weights. The structure qualitatively describes independences in the distribution, which can be exploited to factorize the distribution into a set of compact functions. A key application for learning structures from data is to automatically discover knowledge. In practice, structure learning algorithms focused on "knowledge discovery" present...
Topics: Computing Research Repository, Data Structures and Algorithms, Learning
Source: http://arxiv.org/abs/1407.8088
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79
Oct 8, 2014
10/14
by
Alzamil, Hana A.; Pawade, Joya; Fortier, Michel A.; Bernal, A. Lopez
texts
eye 79
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This article is from Frontiers in Physiology , volume 5 . Abstract Background: Human labor is a complex series of cellular and molecular events that occur at the materno-fetal and uterine levels. Many hypotheses have been proposed for the initiation of human labor, one hypothesis suggests that maturation of the fetus releases a signal in the amniotic fluid that will be transmitted to myometrium via the fetal membranes and initiate uterine contractions. There is strong evidence that...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115629
4
4.0
Jun 30, 2018
06/18
by
Anna M. Barry; F. Hajir; P. G. Kevrekidis
texts
eye 4
favorite 0
comment 0
In this work, we construct suitable generating functions for vortices of alternating signs in the realm of Bose-Einstein condensates. In addition to the vortex-vortex interaction included in earlier fluid dynamics constructions of such functions, the vortices here precess around the center of the trap. This results in the generating functions of the vortices of positive charge and of negative charge satisfying a modified, so-called, Tkachenko differential equation. From that equation, we...
Topics: Nonlinear Sciences, Quantum Gases, Mathematics, Pattern Formation and Solitons, Mathematical...
Source: http://arxiv.org/abs/1407.7965
57
57
Oct 11, 2014
10/14
by
Blaho, Miklos; Herczeg, Tamas; Kriska, Gyorgy; Egri, Adam; Szaz, Denes; Farkas, Alexandra; Tarjanyi, Nikolett; Czinke, Laszlo; Barta, Andras; Horvath, Gabor
texts
eye 57
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This article is from PLoS ONE , volume 9 . Abstract The horizontally polarizing surface parts of shiny black cars (the reflection-polarization characteristics of which are similar to those of water surfaces) attract water-leaving polarotactic insects. Thus, shiny black cars are typical sources of polarized light pollution endangering water-leaving insects. A new fashion fad is to make car-bodies matt black or grey. Since rough (matt) surfaces depolarize the reflected light, one of the ways of...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116178
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110
Oct 7, 2014
10/14
by
Bortoletto, Carolina Carvalho; Cordeiro da Silva, Fernanda; Silva, Paula Fernanda da Costa; Leal de Godoy, Camila Haddad; Albertini, Regiane; Motta, Lara J; Mesquita-Ferrari, Raquel Agnelli; Fernandes, Kristianne Porta Santos; Romano, Renata; Bussadori, Sandra Kalil
texts
eye 110
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This article is from Journal of Physical Therapy Science , volume 26 . Abstract [Purpose] The aim of the present study was to evaluate the effect of a biteplate on the cranio-cervical posture of children with bruxism. [Subjects and Methods] Twelve male and female children aged six to 10 years with a diagnosis of bruxism participated in this study. The children used a biteplate during sleep for 30 days and were submitted to three postural evaluations: initial, immediately following placement...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4135211
71
71
Oct 12, 2014
10/14
by
Bragstad, Line Kildal; Kirkevold, Marit; Foss, Christina
texts
eye 71
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This article is from BMC Health Services Research , volume 14 . Abstract Background: The care policy and organization of the care sector is shifting to accommodate projected demographic changes and to ensure a sustainable model of health care provision in the future. Adult children and spouses are often the first to assume care giving responsibilities for older adults when declining function results in increased care needs. By introducing policies tailored to enabling family members to combine...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4119054
3
3.0
Jun 30, 2018
06/18
by
Bruno Rousseau; François Lapointe; Minh Nguyen; Maxime Biron; Etienne Gaufrès; Saman Choubak; Zheng Han; Vincent Bouchiat; Patrick Desjardins; Michel Côté; Richard Martel
texts
eye 3
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Herein, intervalley scattering is exploited to account for anomalous antiresonances in the infrared spectra of doped and disordered single layer graphene. We present infrared spectroscopy measurements of graphene grafted with iodophenyl moieties in both reflection microscopy and transmission configurations. Asymmetric transparency windows at energies corresponding to phonon modes near the {\Gamma} and K points are observed, in contrast to the featureless spectrum of pristine graphene. These...
Topics: Mesoscale and Nanoscale Physics, Materials Science, Condensed Matter
Source: http://arxiv.org/abs/1407.8141
57
57
Oct 10, 2014
10/14
by
Budowle, Bruce; Connell, Nancy D; Bielecka-Oder, Anna; Colwell, Rita R; Corbett, Cindi R; Fletcher, Jacqueline; Forsman, Mats; Kadavy, Dana R; Markotic, Alemka; Morse, Stephen A; Murch, Randall S; Sajantila, Antti; Schmedes, Sarah E; Ternus, Krista L; Turner, Stephen D; Minot, Samuel
texts
eye 57
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This article is from Investigative Genetics , volume 5 . Abstract High throughput sequencing (HTS) generates large amounts of high quality sequence data for microbial genomics. The value of HTS for microbial forensics is the speed at which evidence can be collected and the power to characterize microbial-related evidence to solve biocrimes and bioterrorist events. As HTS technologies continue to improve, they provide increasingly powerful sets of tools to support the entire field of microbial...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4123828
7
7.0
Jun 30, 2018
06/18
by
Donghui Jeong; Fabian Schmidt
texts
eye 7
favorite 0
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We review recent studies that rigorously define several key observables of the large-scale structure of the Universe in a general relativistic context. Specifically, we consider i) redshift perturbation of cosmic clock events; ii) distortion of cosmic rulers, including weak lensing shear and magnification; iii) observed number density of tracers of the large-scale structure. We provide covariant and gauge-invariant expressions of these observables. Our expressions are given for a linearly...
Topics: Astrophysics, General Relativity and Quantum Cosmology, Cosmology and Nongalactic Astrophysics
Source: http://arxiv.org/abs/1407.7979
5
5.0
Apr 8, 2021
04/21
by
F Jarvis (FJ512)
data
eye 5
favorite 0
comment 0
Cubify Sense scan of the wee doog. Raw so you can chop as you would like from the base to make it level. Or leveled and chopped if you just want to print it.
Topics: dog, bobby, edinburgh, statue, greyfriar, stl, thingiverse, Sculptures
3
3.0
Jun 30, 2018
06/18
by
Fabian Bärenbold; Benoît Crouzy; Paolo Perona
texts
eye 3
favorite 0
comment 0
Although riparian vegetation is present in or along many water courses of the world, its active role resulting from the interaction with flow and sediment processes has only recently become an active field of research. Especially, the role of vegetation in the process of river pattern formation has been explored and demonstrated mostly experimentally and numerically until now. In the present work, we shed light on this subject by performing a linear stability analysis on a simple model for...
Topics: Fluid Dynamics, Physics
Source: http://arxiv.org/abs/1407.7951
3
3.0
Jun 30, 2018
06/18
by
Fabio Cuzzolin
texts
eye 3
favorite 0
comment 0
Consistent belief functions represent collections of coherent or non-contradictory pieces of evidence, but most of all they are the counterparts of consistent knowledge bases in belief calculus. The use of consistent transformations cs[.] in a reasoning process to guarantee coherence can therefore be desirable, and generalizes similar techniques in classical logic. Transformations can be obtained by minimizing an appropriate distance measure between the original belief function and the...
Topics: Computing Research Repository, Statistics, Artificial Intelligence, Methodology
Source: http://arxiv.org/abs/1407.8151
5
5.0
Mar 20, 2021
03/21
by
Fadi k (FadiK)
data
eye 5
favorite 0
comment 0
###UPDATE: Some bad news! I do apologize for the lack of updates on this, however a serious of unfortunate events had crippled my progress. During a modification for a better heated platform, I fried 3 transistors, one atmega, one power supply and broke two extruder mounts while I am at. I almost have all parts to get back and going, just need to find some time. ______________________ This is a tentative Thingiverse model until I finalize all parts and populate the gallery with video and more...
Topics: Bed_probe, opto_switch, thingiverse, auto_bed_level, Z_probe, Solidoodle_3, 3D Printer Parts,...
63
63
Oct 6, 2014
10/14
by
Fagan, Vincent; Toth, Istvan; Simerska, Pavla
texts
eye 63
favorite 1
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This article is from Beilstein Journal of Organic Chemistry , volume 10 . Abstract A novel convergent synthetic strategy for the construction of multicomponent self-adjuvanting lipopeptide vaccines was developed. A tetraalkyne-functionalized glucose derivative and lipidated Fmoc-lysine were prepared by novel efficient and convenient syntheses. The carbohydrate building block was coupled to the self-adjuvanting lipidic moiety (three lipidated Fmoc-lysines) on solid support. Four copies of a...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4143089
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61
Oct 9, 2014
10/14
by
Falb, Kathryn L; Diaz-Olavarrieta, Claudia; Campos, Paola A; Valades, Jimena; Cardenas, Roosebelinda; Carino, Giselle; Gupta, Jhumka
texts
eye 61
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This article is from BMC Public Health , volume 14 . Abstract Background: Intimate partner violence (IPV) victimization is a prevalent issue among women residing in Mexico City. Comprehensive and integrated health care provider (HCP) delivered programs in clinic-settings are needed, yet few have been evaluated in Latin America, including Mexico. In addition, there has been minimal attention to interventions among lower income women presenting at settings outside of antenatal care clinics. The...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4127193
3
3.0
Jun 30, 2018
06/18
by
Farhad A. Goodarzi; Daewon Lee; Taeyoung Lee
texts
eye 3
favorite 0
comment 0
We derived a coordinate-free form of equations of motion for a complete model of a quadrotor UAV with a payload which is connected via a flexible cable according to Lagrangian mechanics on a manifold. The flexible cable is modeled as a system of serially-connected links and has been considered in the full dynamic model. A geometric nonlinear control system is presented to exponentially stabilize the position of the quadrotor while aligning the links to the vertical direction below the...
Topics: Mathematics, Optimization and Control
Source: http://arxiv.org/abs/1407.8164
5
5.0
Jun 30, 2018
06/18
by
Fariba Karimi; Verónica C. Ramenzoni; Petter Holme
texts
eye 5
favorite 0
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Most research of online communication focuses on modes of communication that are either open (like forums, bulletin boards, Twitter, etc.) or direct (like e-mails). In this work, we study a dataset that has both types of communication channels. We relate our findings to theories of social organization and human dynamics. The data comprises 36,492 users of a movie discussion community. Our results show that there are differences in the way users communicate in the two channels that are reflected...
Topics: Physics, Computing Research Repository, Physics and Society, Social and Information Networks
Source: http://arxiv.org/abs/1407.8041
90
90
Oct 11, 2014
10/14
by
Favaro, Livio; Ozella, Laura; Pessani, Daniela
texts
eye 90
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This article is from PLoS ONE , volume 9 . Abstract The African Penguin (Spheniscus demersus) is a highly social and vocal seabird. However, currently available descriptions of the vocal repertoire of African Penguin are mostly limited to basic descriptions of calls. Here we provide, for the first time, a detailed description of the vocal behaviour of this species by collecting audio and video recordings from a large captive colony. We combine visual examinations of spectrograms with spectral...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116197
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72
Oct 10, 2014
10/14
by
Fazel, Ramin; Zarei, Najmeh; Ghaemi, Nasser; Namvaran, Mohammad Mehdi; Enayati, Somayeh; Mirabzadeh Ardakani, Esmat; Azizi, Mohammad; Khalaj, Vahid
texts
eye 72
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This article is from SpringerPlus , volume 3 . Abstract Urate oxidase is an important enzyme with therapeutic and diagnostic applications. Rasburicase is a recombinant urate oxidase enzyme approved by FDA to use in the treatment of hyperuricemia conditions. Various hosts such as Saccharomyces cerevisiae, Hansenula polymorpha and Escherichia coli have been used to express the enzyme. Today, Pichia pastoris is considered as an important host for heterologous protein expression since it has...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4124111
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109
Oct 10, 2014
10/14
by
Fechter, Kenneth; Porollo, Aleksey
texts
eye 109
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This article is from BMC Medical Genomics , volume 7 . Abstract Background: Cytochrome P450 monooxygenases (CYPs) represent a large and diverse family of enzymes involved in various biological processes in humans. Individual genome sequencing has revealed multiple mutations in human CYPs, and many missense mutations have been associated with variety of diseases. Since 3D structures are not resolved for most human CYPs, there is a need for a reliable sequence-based prediction that discriminates...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4119178
3
3.0
Jun 30, 2018
06/18
by
Federico Alberto Ceccopieri; Luca Trentadue
texts
eye 3
favorite 0
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We reconsider the evolution equations for transverse momentum dependent distributions recently proposed by us and recast them in a form which allows the comparison with results recently appeared in the literature. We show under which conditions the obtained results might be consistent with each other.
Topic: High Energy Physics - Phenomenology
Source: http://arxiv.org/abs/1407.7972
10
10.0
Jun 30, 2018
06/18
by
Fei Yu; Michal Rybar; Caroline Uhler; Stephen E. Fienberg
texts
eye 10
favorite 0
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Following the publication of an attack on genome-wide association studies (GWAS) data proposed by Homer et al., considerable attention has been given to developing methods for releasing GWAS data in a privacy-preserving way. Here, we develop an end-to-end differentially private method for solving regression problems with convex penalty functions and selecting the penalty parameters by cross-validation. In particular, we focus on penalized logistic regression with elastic-net regularization, a...
Topics: Machine Learning, Applications, Computing Research Repository, Statistics, Learning
Source: http://arxiv.org/abs/1407.8067
5
5.0
Jun 30, 2018
06/18
by
Fernando Cordero; Lavinia Perez-Ostafe
texts
eye 5
favorite 0
comment 0
We study the arbitrage opportunities in the presence of transaction costs in a sequence of binary markets approximating the fractional Black-Scholes model. This approximating sequence was constructed by Sottinen and named fractional binary markets. Since, in the frictionless case, these markets admit arbitrage, we aim to determine the size of the transaction costs needed to eliminate the arbitrage from these models. To gain more insight, we first consider only 1-step trading strategies and we...
Topics: Probability, Mathematics, Quantitative Finance, Pricing of Securities
Source: http://arxiv.org/abs/1407.8068
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96
Oct 11, 2014
10/14
by
Ferrara, Maria Antonietta; Dardano, Principia; De Stefano, Luca; Rea, Ilaria; Coppola, Giuseppe; Rendina, Ivo; Congestri, Roberta; Antonucci, Alessandra; De Stefano, Mario; De Tommasi, Edoardo
texts
eye 96
favorite 0
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This article is from PLoS ONE , volume 9 . Abstract Some natural structures show three-dimensional morphologies on the micro- and nano- scale, characterized by levels of symmetry and complexity well far beyond those fabricated by best technologies available. This is the case of diatoms, unicellular microalgae, whose protoplasm is enclosed in a nanoporous microshell, made of hydrogenated amorphous silica, called frustule. We have studied the optical properties of Arachnoidiscus sp. single valves...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116236
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80
Oct 11, 2014
10/14
by
Ferrero, Valentina Elisabetta Viviana; Pedotti, Mattia; Chiado, Alessandro; Simonelli, Luca; Calzolai, Luigi; Varani, Luca; Lettieri, Teresa
texts
eye 80
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This article is from PLoS ONE , volume 9 . Abstract In this manuscript, we modulate the binding properties of estrogen receptor protein by rationally modifying the amino acid composition of its ligand binding domain. By combining sequence alignment and structural analysis of known estrogen receptor-ligand complexes with computational analysis, we were able to predict estrogen receptor mutants with altered binding properties. These predictions were experimentally confirmed by producing single...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116177
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6.0
Jun 30, 2018
06/18
by
Fidaa Abed; Ioannis Caragiannis; Alexandros A. Voudouris
texts
eye 6
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We study the asymmetric binary matrix partition problem that was recently introduced by Alon et al. (WINE 2013) to model the impact of asymmetric information on the revenue of the seller in take-it-or-leave-it sales. Instances of the problem consist of an $n \times m$ binary matrix $A$ and a probability distribution over its columns. A partition scheme $B=(B_1,...,B_n)$ consists of a partition $B_i$ for each row $i$ of $A$. The partition $B_i$ acts as a smoothing operator on row $i$ that...
Topics: Computer Science and Game Theory, Computational Complexity, Computing Research Repository
Source: http://arxiv.org/abs/1407.8170
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95
Oct 10, 2014
10/14
by
Fioravanti, Mario; Nakashima, Taku; Xu, Jun; Garg, Amit
texts
eye 95
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This article is from BMJ Open , volume 4 . Abstract Objective: To evaluate the safety profile of nicergoline compared with placebo and other active agents from published randomised controlled trials. Design: Systematic review and meta-analysis of nicergoline compared with placebo and other active agents across various indications. Data sources: MEDLINE, Medline-in-process, Cochrane, EMBASE, EMBASE alerts, Cochrane Central Register of Controlled Trials (CENTRAL), Cochrane Database of Systematic...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4120366
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11
Jun 30, 2018
06/18
by
Firmin J. Oliveira
texts
eye 11
favorite 0
comment 0
In this paper the four-dimensional space-velocity Cosmological General Relativity of Carmeli is developed by a general solution to the Einstein field equations. The metric is given in the Tolman form and the vacuum mass density is included in the energy-momentum tensor. The scale factor redshift equation is obtained, forming the basis for deriving the various redshift-distance relations of cosmological analysis. A linear equation of state dependent on the scale factor is assumed to account for...
Topic: General Relativity and Quantum Cosmology
Source: http://arxiv.org/abs/1407.8139
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52
Oct 11, 2014
10/14
by
Fischer, Sebastian; Wiemer, Anita; Diedrich, Laura; Moock, Jorn; Rossler, Wulf
texts
eye 52
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This article is from PLoS ONE , volume 9 . Abstract We suggest that interactions with strangers at work influence the likelihood of depressive disorders, as they serve as an environmental stressor, which are a necessary condition for the onset of depression according to diathesis-stress models of depression. We examined a large dataset (N = 76,563 in K = 196 occupations) from the German pension insurance program and the Occupational Information Network dataset on occupational...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116212
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54
Oct 10, 2014
10/14
by
Fitzcharles, Mary-Ann; Ste-Marie, Peter A; Clauw, Daniel J; Jamal, Shahin; Karsh, Jacob; LeClercq, Sharon; McDougall, Jason J; Shir, Yoram; Shojania, Kam; Walsh, Zach
texts
eye 54
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This article is from BMC Musculoskeletal Disorders , volume 15 . Abstract Background: Arthritis pain is reported as one of the most common reasons for persons using medical herbal cannabis in North America. “Severe arthritis” is the condition justifying legal use of cannabis in over half of all authorizations in Canada, where cannabis remains a controlled substance. As champions for the care of persons with arthritis, rheumatologists must be knowledgeable of treatment modalities both...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4121007
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58
Oct 11, 2014
10/14
by
Florez-Vargas, Oscar; Bramhall, Michael; Noyes, Harry; Cruickshank, Sheena; Stevens, Robert; Brass, Andy
texts
eye 58
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This article is from PLoS ONE , volume 9 . Abstract There is a growing concern both inside and outside the scientific community over the lack of reproducibility of experiments. The depth and detail of reported methods are critical to the reproducibility of findings, but also for making it possible to compare and integrate data from different studies. In this study, we evaluated in detail the methods reporting in a comprehensive set of trypanosomiasis experiments that should enable valid...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116335
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76
Oct 8, 2014
10/14
by
Foret, Michael R.; Sandstrom, Richard S.; Rhodes, Christopher T.; Wang, Yufeng; Berger, Mitchel S.; Lin, Chin-Hsing Annie
texts
eye 76
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This article is from Frontiers in Genetics , volume 5 . Abstract Histone 3 Lysine 9 (H3K9) methylation is known to be associated with pericentric heterochromatin and important in genomic stability. In this study, we show that trimethylation at H3K9 (H3K9me3) is enriched in an adult neural stem cell niche- the subventricular zone (SVZ) on the walls of the lateral ventricle in both rodent and non-human primate baboon brain. Previous studies have shown that there is significant correlation between...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115620
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59
Oct 8, 2014
10/14
by
Fourcaud-Trocme, Nicolas; Courtiol, Emmanuelle; Buonviso, Nathalie
texts
eye 59
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This article is from Frontiers in Neural Circuits , volume 8 . Abstract A prominent feature of olfactory bulb (OB) dynamics is the expression of characteristic local field potential (LFP) rhythms, including a slow respiration-related rhythm and two fast alternating oscillatory rhythms, beta (15–30 Hz) and gamma (40–90 Hz). All of these rhythms are implicated in olfactory coding. Fast oscillatory rhythms are known to involve the mitral-granule cell loop. Although the underlying mechanisms of...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115636
7
7.0
Jun 30, 2018
06/18
by
Francois Leyvraz
texts
eye 7
favorite 0
comment 0
Why would anyone wish to generalize the already unappetizing subject of rigid body motion to an arbitrary number of dimensions? At first sight, the subject seems to be both repellent and superfluous. The author will try to argue that an approach involving no specifically three-dimensional constructs is actually easier to grasp than the traditional one and might thus be generally useful to understand rigid body motion both in three dimensions and in the general case. Specific differences between...
Topics: Physics, Classical Physics
Source: http://arxiv.org/abs/1407.8155
5
5.0
Jun 30, 2018
06/18
by
Franziska Jahnke; Jochen Koenigsmann
texts
eye 5
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Admitting a non-trivial $p$-henselian valuation is a weaker assumption on a field than admitting a non-trivial henselian valuation. Unlike henselianity, $p$-henselianity is an elementary property in the language of rings. We are interested in the question when a field admits a non-trivial 0-definable $p$-henselian valuation (in the language of rings). We give a classification of elementary classes of fields in which the canonical $p$-henselian valuation is uniformly 0-definable. We then apply...
Topics: Mathematics, Logic, Commutative Algebra
Source: http://arxiv.org/abs/1407.8156
4
4.0
Jun 30, 2018
06/18
by
Frasher Loshaj; Dmitri E. Kharzeev
texts
eye 4
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Soft photons produced in heavy ion collisions are an important tool for probing the properties of the quark-gluon plasma. It is therefore crucial to understand the background - soft photons produced in elementary collisions. Low theorem states that soft photon production in hadron collisions is dominated by Bremsstrahlung off charged initial and final state hadrons. Surprisingly, almost every experiment observed an enhancement (by a factor of $2\div 5$) above Low theorem's prediction. This is...
Topics: High Energy Physics - Phenomenology, Nuclear Theory
Source: http://arxiv.org/abs/1407.8158
3
3.0
Jun 30, 2018
06/18
by
Frederic Legoll; William Minvielle
texts
eye 3
favorite 0
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We consider a variance reduction approach for the stochastic homogenization of divergence form linear elliptic problems. Although the exact homogenized coefficients are deterministic, their practical approximations are random. We introduce a control variate technique to reduce the variance of the computed approximations of the homogenized coefficients. Our approach is based on a surrogate model inspired by a defect-type theory, where a perfect periodic material is perturbed by rare defects....
Topics: Mathematics, Numerical Analysis, Probability
Source: http://arxiv.org/abs/1407.8029
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58
Oct 11, 2014
10/14
by
Freeman, Tom C. A.; Leung, Johahn; Wufong, Ella; Orchard-Mills, Emily; Carlile, Simon; Alais, David
texts
eye 58
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This article is from PLoS ONE , volume 9 . Abstract Evidence that the auditory system contains specialised motion detectors is mixed. Many psychophysical studies confound speed cues with distance and duration cues and present sound sources that do not appear to move in external space. Here we use the ‘discrimination contours’ technique to probe the probabilistic combination of speed, distance and duration for stimuli moving in a horizontal arc around the listener in virtual auditory space....
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116163
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207
Oct 11, 2014
10/14
by
Freeth, Tony
texts
eye 207
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This article is from PLoS ONE , volume 9 . Abstract The ancient Greek astronomical calculating machine, known as the Antikythera Mechanism, predicted eclipses, based on the 223-lunar month Saros cycle. Eclipses are indicated on a four-turn spiral Saros Dial by glyphs, which describe type and time of eclipse and include alphabetical index letters, referring to solar eclipse inscriptions. These include Index Letter Groups, describing shared eclipse characteristics. The grouping and ordering of...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116162
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Oct 8, 2014
10/14
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Friedel, Miriam; van Eede, Matthijs C.; Pipitone, Jon; Chakravarty, M. Mallar; Lerch, Jason P.
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This article is from Frontiers in Neuroinformatics , volume 8 . Abstract Using neuroimaging technologies to elucidate the relationship between genotype and phenotype and brain and behavior will be a key contribution to biomedical research in the twenty-first century. Among the many methods for analyzing neuroimaging data, image registration deserves particular attention due to its wide range of applications. Finding strategies to register together many images and analyze the differences between...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115634
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4.0
Jun 30, 2018
06/18
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Friedrich Knop; Bernhard Krötz; Eitan Sayag; Henrik Schlichtkrull
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We apply the local structure theorem and the polar decomposition to a real spherical space Z=G/H and control the volume growth on Z. We define the Harish-Chandra Schwartz space on Z. We give a geometric criterion to ensure $L^p$-integrability of matrix coefficients on Z.
Topics: Mathematics, Representation Theory
Source: http://arxiv.org/abs/1407.8006
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Oct 6, 2014
10/14
by
Fu, King-wa; Chan, Chung-hong; Ip, Patrick
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This article is from BMC Pediatrics , volume 14 . Abstract Background: Internet risk has been recognised as a child safety problem, but evidence is insufficient to conclude that a child’s online risk exposure can lead to physical harm. This study aims to explore the ecological relationship between Internet risk exposure and unnatural child death. Methods: Multiple secondary data sources were used: online exposure to content about self-harm, cyberbullying, and Internet addiction data (EU Kids...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4146448
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Oct 10, 2014
10/14
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Fukutani, Kiyoshi F; Figueiredo, Virginia; Celes, Fabiana S; Cristal, Juqueline R; Barral, Aldina; Barral-Netto, Manoel; de Oliveira, Camila I
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This article is from BMC Infectious Diseases , volume 14 . Abstract Background: Visceral Leishmaniasis is endemic to Brazil, where it is caused by Leishmania infantum (syn. Leishmania chagasi). Following parasite inoculation, individuals may experience asymptomatic infection, raising the possibility of parasite transmission through the transfusion of contaminated blood products. In the present work, we evaluated the prevalence of asymptomatic Leishmania infection among blood donors in Salvador,...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4122787
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Jun 30, 2018
06/18
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G. Bruni; J. I. González-Serrano; M. Pedani; C. R. Benn; K. -H. Mack; J. Holt; F. M. Montenegro-Montes; F. Jiménez-Luján
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Broad absorption lines (BALs) are present in the spectra of ~20% of quasars (QSOs); this indicates fast outflows (up to 0.2c) that intercept the observer's line of sight. These QSOs can be distinguished again into radio-loud (RL) BAL QSOs and radio-quiet (RQ) BAL QSOs. The first are very rare, even four times less common than RQ BAL QSOs. The reason for this is still unclear and leaves open questions about the nature of the BAL-producing outflows and their connection with the radio jet. We...
Topics: Astrophysics of Galaxies, Astrophysics
Source: http://arxiv.org/abs/1407.7987
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Oct 11, 2014
10/14
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Goodreau, Steven M.; Carnegie, Nicole B.; Vittinghoff, Eric; Lama, Javier R.; Fuchs, Jonathan D.; Sanchez, Jorge; Buchbinder, Susan P.
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This article is from PLoS ONE , volume 9 . Abstract Background: Three trials have demonstrated the prophylactic effect of male circumcision (MC) for HIV acquisition among heterosexuals, and MC interventions are underway throughout sub-Saharan Africa. Similar efforts for men who have sex with men (MSM) are stymied by the potential for circumcised MSM to acquire HIV easily through receptive sex and transmit easily through insertive sex. Existing work suggests that MC for MSM should reach its...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116164
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Oct 12, 2014
10/14
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Guerrero, Erick G; Villatoro, Jorge Ameth; Kong, Yinfei; Fleiz, Clara; Vega, William A; Strathdee, Steffanie A; Medina-Mora, Maria Elena
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This article is from Substance Abuse Treatment, Prevention, and Policy , volume 9 . Abstract Background: We examined Mexican migrants’ perceived barriers to entering substance abuse treatment and potential differences by gender. Methods: This study analyzed a subset of household data collected in Mexico in 2011 via the Encuesta Nacional de Adicciones (National Survey of Addictions). A sample of 1,143 individuals who reported using illicit drugs was analyzed using multivariate negative...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4118628
