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Prognostic Value of the Ocular Trauma Score in Traumatic Open Globe Injuries in the Philippines: A Five-Year Retrospective Study —Prognostic Value of the Ocular Trauma Score in Open Globe Injuries  [PDF]
Raymond Nelson C. Regalado, Ruben Lim Bon Siong, Archimedes Lee D. Agahan, Anthony F. Felipe
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104224
Abstract:
PURPOSE: To determine the prognostic value of the Ocular Trauma Score (OTS) in patients with traumatic open globe injuries. METHODS: A retrospective chart review of patients with traumatic open globe injuries seen in a tertiary eye center in the Philippines from 2008 to 2013. Patients with traumatic open globe injuries who were at least 18 years of age upon first consult and with documented visual acuity at the first, third and sixth months of follow up were included in the study. The following data were collected: age, sex, occupation, manner of injury, type of injury, location of injury, presence of globe rupture, endophthalmitis, perforation, retinal detachment and afferent pupillary defect, and visual acuity (VA) at presentation, month 1, month 3 and month 6. The OTS was computed from the available data. RESULTS: A total of 114 records were included. Open-globe (OG) injuries were more common in males (86.8%), between 18 - 39 y/o (64.9%) and who were manual workers (74.6%). Most were occupation-related (64%), seen within 1 - 3 days (55.3%), and treated both medically and surgically (92.1%). The most common type of OG injury was a penetrating laceration (82.5%), had an initial VA of 4/200 to light perception (57.9%), had no afferent pupillary defect (APD) (84.2%), and was located at zone I (73.7%). The most common OTS anatomical factor seen, when present, was an APD (15.8%). In all months, there was a significant positive correlation between OTS score and visual acuity. CONCLUSION: The OTS appeared to predict visual outcome as early as the first month post-injury, although correlation still exists at the 3rd and 6th months.
A note on conversational interruptions A note on conversational interruptions
Anthony F. Deyes
Ilha do Desterro , 2008,
Abstract: In their seminal article, Sacks, Schegloff and Jefferson (1974) examine procedures for turn-taking in conversation. Sometimes, they note, a s peaker will select who has the next turn, but more frequently a "self-select" system operates, whereby the participants in a conversation themselves determine when they wish to speak. But how, ask Sacks, Schegloff and Jefferson, do the interlocutors secure a turn in the ongoing flow of another speaker's utterance? To answer this question the authors introduce the notion of "transition relevance place", that is, a point in the turn-holder's utterance where another speaker is most likely to take up a turn. Clearly the most obvious transition relevance place occurs at the end of an utterance sentence, where a pause may be made. However, clause or thersyntactic boundaries also offer opportunities for other speakers to interrupt. As Sacks et al point out, if conversational participants do not take up a turn at a transition relevance place the turn holder will normally continue. In their seminal article, Sacks, Schegloff and Jefferson (1974) examine procedures for turn-taking in conversation. Sometimes, they note, a s peaker will select who has the next turn, but more frequently a "self-select" system operates, whereby the participants in a conversation themselves determine when they wish to speak. But how, ask Sacks, Schegloff and Jefferson, do the interlocutors secure a turn in the ongoing flow of another speaker's utterance? To answer this question the authors introduce the notion of "transition relevance place", that is, a point in the turn-holder's utterance where another speaker is most likely to take up a turn. Clearly the most obvious transition relevance place occurs at the end of an utterance sentence, where a pause may be made. However, clause or thersyntactic boundaries also offer opportunities for other speakers to interrupt. As Sacks et al point out, if conversational participants do not take up a turn at a transition relevance place the turn holder will normally continue.
Dolor de Pecho
Arguija, Anthony F
Western Journal of Emergency Medicine : Integrating Emergency Care with Population Health , 2010,
Abstract:
A GLOBAL ASSESSMENT OF WOLF-RAYET BINARIES IN THE MAGELLANIC CLOUDS
Anthony F. J. Moffat
Revista mexicana de astronomía y astrofísica , 2008,
Abstract: Los estudios emp ricos extensos de la evoluci on avanzada de estrellas masivas a trav es de la fase de Wolf-Rayet se han complicado por las enormes disparidades en el brillo aparente y la extinci on atmosf erica, as como por las incertidumbres en las distancias. Estos problemas desaparecen en las Nubes de Magallanes (NMs), donde se pueden explorar sistem aticamente los efectos de menor metalicidad inicial (Z). Desde hace dos d ecadas yo inici e, en parte en colaboraci on con Virpi Niemela, un amplio programa espectrosc opico para examinar la binaridad de todas las estrellas WR conocidas en la NMM (en ese entonces, cerca de 100) y extraer informaci on sobre propiedades generales de las estrellas WR. Ahora en 2006 el ultimo paso de este proyecto est a a punto de ser concluido por el tercer estudiante de doctorado [Olivier Schnurr quien ha trabajado en las estrellas WNL despu es de Peter Bartzakos (WC) en 1998 y C edric Foellmi (WNE) en 2002]. El programa incluye las 144 estrellas WR conocidas en las NM, de nidas por los cat alogos de Breysacher et al. para la NubeMayor, y de Massey et al. para la Nube Menor. Aqu resumimos los puntos sobresalientes de este trabajo. Estos incluyen (1) una frecuencia binaria WR normal en ambas nubes y en la Galaxia, (2) una mayor presencia de H en las estrellas WNE, a un en las binarias, a menor Z, (3) vientos en colisi on, y (4) estrellas muy masivas WNLha. Terminar e con algunas sugerencias para trabajo futuro.
Hot colliding winds and the 2009 campaign on WR140
Anthony F. J. Moffat
Physics , 2011,
Abstract: WR140 (WC7pd + O5) is often considered to be the archetype of hot, luminous colliding-wind binaries, with strong cyclic high-energy and dust-formation events. The challenge is that this system is quite extreme, with a long period (nearly an integral 7.94 years) and high eccentricity (e = 0.88). Most of the action thus occurs during the relatively short several-month interval of close periastron passage, which in the most recent 2009 January passage occurred during the northern winter months when this summer Cygnus star was least favourably placed in the sky for groundbased observation. To meet this challenge, various multiwavelength campaigns were organized at different sites and from space, mainly within several months of periastron passage 2009. Of particular interest to this workshop was the MONS optical spectroscopic effort, involving both amateur and professional astronomers at the MONS site on Tenerife from 2008 December through 2009 March. I will describe WR140 in terms of the general phenomenon of hot colliding winds and leave the new campaign details to other speakers at this workshop.
Stability of Noisy Metropolis-Hastings
Felipe J. Medina-Aguayo,Anthony Lee,Gareth O. Roberts
Statistics , 2015,
Abstract: Pseudo-marginal Markov chain Monte Carlo methods for sampling from intractable distributions have gained recent interest and have been theoretically studied in considerable depth. Their main appeal is that they are exact, in the sense that they target marginally the correct invariant distribution. However, the pseudo-marginal Markov chain can exhibit poor mixing and slow convergence towards its target. As an alternative, a subtly different Markov chain can be simulated, where better mixing is possible but the exactness property is sacrificed. This is the noisy algorithm, initially conceptualised as Monte Carlo within Metropolis (MCWM), which has also been studied but to a lesser extent. The present article provides a further characterisation of the noisy algorithm, with a focus on fundamental stability properties like positive recurrence and geometric ergodicity. Sufficient conditions for inheriting geometric ergodicity from a standard Metropolis-Hastings chain are given, as well as convergence of the invariant distribution towards the true target distribution.
Where there is no evidence: use of expert consensus methods to fill the evidence gap in low-income countries and cultural minorities
Harry Minas, Anthony F Jorm
International Journal of Mental Health Systems , 2010, DOI: 10.1186/1752-4458-4-33
Abstract: The evidence based medicine movement has had a major influence in improving practice. However, implementation of this approach has some major difficulties. One that has been neglected is the situation where there is no relevant evidence. This situation is more likely to occur for healthcare decisions in developing countries or for cultural minorities within developed countries, because resources do not exist for expensive research studies.Consensus methods, such as the Delphi process, can be useful in providing an evidence base in situations where there is insufficient evidence. They provide a way of systematically tapping the expertise of people working in the area and give evidence that is readily applicable for a particular country and culture. Although consensus methods are often thought of as low in the hierarchy of evidence, consensus is central to the scientific process. We present four examples where the Delphi method was used to assess expert consensus in situations where no other evidence existed: estimating the prevalence of dementia in developing countries, developing mental health first aid guidelines in Asian countries, mental health first aid guidelines for Australian Aboriginal people, and modification of the concept of 'recovery' for Australian immigrant communities.Consensus methods can provide a basis for decision-making and considered action when there is no evidence or when there are doubts about the applicability of evidence that has been generated from other populations or health system settings.Mental disorders are common in all countries, with considerable variation in reported prevalence across countries, even when the same methods for estimation of prevalence are used [1]. The treatment gap is wide everywhere, widest in developing countries [2,3]. Among the reasons for failure of coverage is massive under-investment in mental health service provision [4], resulting in serious shortages of health facilities and skilled mental health profess
h 指数与标准文献计量学指标及同行评议之间的关系
Anthony,F.,J.,van,Raan
科学观察 , 2006,
Abstract: 研究目的、方法及数据来源J.E.Hirsch(2005)在最近的一篇论文中,富有创意地提出了一个表征科学家个人研究工作累积影响力的简单而又新颖的指标。在本篇论文中,作者将分析h指数与同行评议之间以及若干标准的文献计量学指标与同行
Universities Scale Like Cities
Anthony F. J. van Raan
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0059384
Abstract: Recent studies of urban scaling show that important socioeconomic city characteristics such as wealth and innovation capacity exhibit a nonlinear, particularly a power law scaling with population size. These nonlinear effects are common to all cities, with similar power law exponents. These findings mean that the larger the city, the more disproportionally they are places of wealth and innovation. Local properties of cities cause a deviation from the expected behavior as predicted by the power law scaling. In this paper we demonstrate that universities show a similar behavior as cities in the distribution of the ‘gross university income’ in terms of total number of citations over ‘size’ in terms of total number of publications. Moreover, the power law exponents for university scaling are comparable to those for urban scaling. We find that deviations from the expected behavior can indeed be explained by specific local properties of universities, particularly the field-specific composition of a university, and its quality in terms of field-normalized citation impact. By studying both the set of the 500 largest universities worldwide and a specific subset of these 500 universities -the top-100 European universities- we are also able to distinguish between properties of universities with as well as without selection of one specific local property, the quality of a university in terms of its average field-normalized citation impact. It also reveals an interesting observation concerning the working of a crucial property in networked systems, preferential attachment.
Scaling rules in the science system: influence of field-specific citation characteristics on the impact of research groups
Anthony F. J. van Raan
Physics , 2007,
Abstract: We propose a representation of science as a citation-density landscape and investigate scaling rules with the field-specific citation density as a main topological property. We focus on the size-dependence of several main bibliometric indicators for a large set of research groups while distinguishing between top-performance and lower performance groups. We demonstrate that this representation of the science system is particularly effective to understand the role and the interdependencies of the different bibliometric indicators and related topological properties of the landscape.
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