Differential associations of personal and general just-world beliefs with the Five-Factor and HEXACO models of personality.

Recent literature evidences differential associations of personal and general just-world beliefs with constructs in the interpersonal domain. In line with this research, we examine the respective relationships of each just-world belief with the Five-Factor and the HEXACO models of personality in one representative sample of the working population of Switzerland and one sample of the general US population, respectively. One suppressor effect was observed in both samples: Neuroticism and emotionality was positively associated with general just-world belief, but only after controlling for personal just-world belief. In addition, agreeableness was positively and honesty-humility negatively associated with general just-world belief but unrelated to personal just-world belief. Conscientiousness was consistently unrelated to any of the just-world belief and extraversion and openness to experience revealed unstable coefficients across studies. We discuss these points in light of just-world theory and their implications for future research taking both dimensions into account

Minimal invasive surgery for coronoid fracture: technical note

Operative treatment of coronoid fracture often requires a large dissection of soft tissue, resulting in elbow stiffness and functional limitation. The authors present a minimal invasive, safe technique, useful in the case of isolated coronoid fracture associated with elbow dislocation. This technique does not require soft tissue dissection and allows an early unlimited resumption of sports activitie

Mitochondrial protein abundance gradients require the distribution of separated mitochondria

Mitochondria are highly dynamic organelles that interchange their contents mediated by fission and fusion. However, it has previously been shown that the mitochondria of cultured human epithelial cells exhibit a gradient in the relative abundance of several proteins, with the perinuclear mitochondria generally exhibiting a higher protein abundance than the peripheral mitochondria. The molecular mechanisms that are required for the establishment and the maintenance of such inner-cellular mitochondrial protein abundance gradients are unknown. We verified the existence of inner-cellular gradients in the abundance of clusters of the mitochondrial outer membrane protein Tom20 in the mitochondria of kidney epithelial cells from an African green monkey (Vero cells) using STED nanoscopy and confocal microscopy. We found that the Tom20 gradients are established immediately after cell division and require the presence of microtubules. Furthermore, the gradients are abrogated in hyperfused mitochondrial networks. Our results suggest that inner-cellular protein abundance gradients from the perinuclear to the peripheral mitochondria are established by the trafficking of individual mitochondria to their respective cellular destination

USE OF HISTORICAL AERIAL IMAGES FOR 3D MODELLING OF GLACIERS IN THE PROVINCE OF TRENTO

Abstract. Historical aerial images represent a source of information of great value for glacier monitoring, as they cover the area of interest at a well-defined epoch and allow for visual interpretation and metric analysis. Typically, the aerial images are used to produce orthophotos and manually digitize the perimeters of the glaciers for analysis of the surface extent of the glaciers, while the extraction of height information is more challenging due to data quality and characteristics. This article discusses the potential of historical aerial images for glacier modelling. More specifically, it analyses the impact of their coverage, radiometric- and geometric accuracy, state of preservation and completeness on the photogrammetric workflow. The data set used consists of scans of 300 (analog) aerial images acquired between August and October 1954 by the U.S. Air Force with a Fairchild KF7660 camera over the entire Province of Trento. For the modelling of the glaciers, different techniques such as manual stereoscopic measurement and dense image matching were tested on sample glaciers and the results were analysed in detail. Due to local radiometric saturation in a large part of the glacial surfaces and other disturbances affecting the historical images (e.g. scratches, scanning errors, dark shadows), dense image matching did not produce any valuable results, and stereo plotting could be used only on images (or image parts) with acceptable quality. The derived Digital Terrain Models (DTMs) were compared with a reference DTM obtained with dense image matching from digital aerial images acquired in September 2015 with an UltraCam Eagle sensor, and, for some glaciers, to a DTM obtained with dense image matching from scanned aerial images acquired in September 1983 with a RC30 analog camera. The differences between 1954 and 2015 DTMs showed values up to 70–80 m in height and a behaviour that is confirmed by the models employed by the glaciology experts in Trento

Coincidence isometries of a shifted square lattice

We consider the coincidence problem for the square lattice that is translated by an arbitrary vector. General results are obtained about the set of coincidence isometries and the coincidence site lattices of a shifted square lattice by identifying the square lattice with the ring of Gaussian integers. To illustrate them, we calculate the set of coincidence isometries, as well as generating functions for the number of coincidence site lattices and coincidence isometries, for specific examples.Comment: 10 pages, 1 figure; paper presented at Aperiodic 2009 (Liverpool

ANÁLISE DO MANEJO AGUDO DO ACIDENTE VASCULAR CEREBRAL NO HOSPITAL DE CLÍNICAS DE PORTO ALEGRE

Introdução: Acidente vascular cerebral (AVC) é a segunda causa de óbito no mundo e a terceira nos países industrializados. O objetivo deste estudo é avaliar a qualidade do atendimento prestado aos pacientes vítimas de AVC no Hospital de Clínicas de Porto Alegre (HCPA). Poucos trabalhos descrevem o modo de atendimento ideal do AVC agudo, e a ausência de padronização de condutas muitas vezes implica em retardo diagnóstico e terapêutico. Materiais e métodos: trabalho retrospectivo onde foram analisados 55 pacientes (n: 55) admitidos na emergência do HCPA com diagnóstico de AVC agudo, através de suas características demográficas (sexo e idade), tempo de internação e mortalidade geral, indicadores de atendimento inicial (glicemia capilar [GC], pressão arterial [PA], perfil lipídico, eletrocardiograma [ECG], tomografia computadorizada [TC] de crânio), avaliação complementar (ecocardiograma,ecografia com doppler de carótidas, tomografia após 48 horas) e tratamento instituído (AAS, estatina, anticoagulação, trombolítico). Resultados: dos 55 pacientes, 45 (81,8%) apresentaram diagnóstico de AVC isquêmico e10 (18,2%) de AVC hemorrágico, sendo que a mortalidade do AVC hemorrágico foi significativamente maior (40% vs 4%). Mais de 90% obtiveram medidas de PA e ECG na chegada, e 100% dos pacientes realizaram TC de crânio nas primeiras 24 horas; medidas de GC foram feitas em 60% dos pacientes, e perfil lipídico em apenas 11%. Dos exames complementares destaca-se o ecocardiograma realizado em quase 90% dos casos (69% transtorácico e 18%transesofágico [TE]) e a ecodoppler de carótidas feita em 90%; menos de 30% dos pacientes obtiveram TC após 48 horas. Quanto ao tratamento, aproximadamente 80% receberam AAS e estatina; 20% receberam anticoagulação e nenhum recebeu trombolítico. As análises dos examescomplementares e do tratamento foram realizadas apenas nos pacientes com AVC isquêmico. Discussão: a análise dos dados demográficos e a caracterização do AVC (hemorrágico X isquêmico) foram similares aos encontrados na literatura. A falha do estudo foi não ter excluído os pacientes que foram a óbito na análise do tempo de internação, desta forma subestimando o resultado principalmente do AVC hemorrágico, que obteve maior mortalidade. A avaliaçãocomplementar foi satisfatória e condizente com a descrição da literatura. Quanto ao tratamento, apesar de fortes evidências validando o uso de trombolíticos, este não foi praticado neste hospital por norma interna do serviço; a prescrição de AAS e estatina foi adequada ao recomendado na literatura.Unitermos: acidente vascular cerebral; AVC; manejo agudo; indicadores assistenciais

Management of acute stroke in Hospital de Clínicas de Porto Alegre

Introdução: Acidente vascular cerebral (AVC) é a segunda causa de óbito no mundo e a terceira nos países industrializados. O objetivo deste estudo é avaliar a qualidade do atendimento prestado aos pacientes vítimas de AVC no Hospital de Clínicas de Porto Alegre (HCPA). Poucos trabalhos descrevem o modo de atendimento ideal do AVC agudo, e a ausência de padronização de condutas muitas vezes implica em retardo diagnóstico e terapêutico. Materiais e métodos: trabalho retrospectivo onde foram analisados 55 pacientes (n: 55) admitidos na emergência do HCPA com diagnóstico de AVC agudo, através de suas características demográficas (sexo e idade), tempo de internação e mortalidade geral, indicadores de atendimento inicial (glicemia capilar [GC], pressão arterial [PA], perfil lipídico, eletrocardiograma [ECG], tomografia computadorizada [TC] de crânio), avaliação complementar (ecocardiograma, ecografia com doppler de carótidas, tomografia após 48 horas) e tratamento instituído (AAS, estatina, anticoagulação, trombolítico) Resultados: dos 55 pacientes, 45 (81,8%) apresentaram diagnóstico de AVC isquêmico e 10 (18,2%) de AVC hemorrágico, sendo que a mortalidade do AVC hemorrágico foi significativamente maior (40% vs 4%). Mais de 90% obtiveram medidas de PA e ECG na chegada, e 100% dos pacientes realizaram TC de crânio nas primeiras 24 horas; medidas de GC foram feitas em 60% dos pacientes, e perfil lipídico em apenas 11%. Dos exames complementares destaca-se o ecocardiograma realizado em quase 90% dos casos (69% transtorácico e 18% transesofágico [TE]) e a ecodoppler de carótidas feita em 90%; menos de 30% dos pacientes obtiveram TC após 48 horas. Quanto ao tratamento, aproximadamente 80% receberam AAS e estatina; 20% receberam anticoagulação e nenhum recebeu trombolítico. As análises dos exames complementares e do tratamento foram realizadas apenas nos pacientes com AVC isquêmico. Discussão: a análise dos dados demográficos e a caracterização do AVC (hemorrágico X isquêmico) foram similares aos encontrados na literatura. A falha do estudo foi não ter excluído os pacientes que foram a óbito na análise do tempo de internação, desta forma subestimando o resultado principalmente do AVC hemorrágico, que obteve maior mortalidade. A avaliação complementar foi satisfatória e condizente com a descrição da literatura. Quanto ao tratamento, apesar de fortes evidências validando o uso de trombolíticos, este não foi praticado neste hospital por norma interna do serviço; a prescrição de AAS e estatina foi adequada ao recomendado na literatura.Background: Stroke is the second cause of death in the world and the third in industrialized countries. The main target of this study is to evaluate the quality of the management of stroke at the Hospital de Clínicas de Porto Alegre (HCPA). There are very few studies in the literature describing the ideal management of the acute stroke, and the lack of management pattern implies in a late diagnosis and treatment. Materials and methods: analysed 55 patients (n: 55) received at emergency room at HCPA with stroke diagnosed, patient´s demographic details (age and sex), internment time and general mortality, fist management impressions (fingerstick glucose [FSG], blood pressure [BP], lipidic profile, eletrocardiogram [ECG], head CT scan), complementary evaluation (echocardiography, carotid US Doppler, head CT scan after 48 hours) and treatment applied (aspirin, statin, anticoagulation, thrombolytic). Results: from the 55 patients, 45 (81,8%) showed ischemic stroke and 10 (18,2%) the hemorrhagic stroke, and the number of deaths from hemorrhagic was significantly higher (40% vs 4%). More than 90% of the patients got BP and ECG measurements upon arrival, and 100% of them had head CT scan on the first 24 hours; FSG measurements were made in 60% of the patients, lipidic profile in only 11%. From the complementary exhaminations the echocardiography is highlighted as the one made in almost 90% of the cases (69% transthoracic and 18% transesophagic [TE]) and the carotide US doppler in 89%; less than 30% had CT scan after 48 hours. Regarding the treatment, approximately 80% received aspirin and statin; 20% received anticoagulation and none received thrombolytic. The analysis of the complementary exhaminations and of the treatment were made only in the patients with ischemic stroke. Discussion: the analysis of the demographic data and stroke type (hemorrhagic X ischemic) was similar to the ones found in the literature. The study failure was to use the patients that died at the internation time - this fact underestimated the results (number of days at the hospital) specially in hemorragic stroke, which got more number of deaths. The complementary evaluation was satisfactory and according to the literature. Regarding to the treatment, in spite of the strong evidences of the use of trombolitics, this was not used in this hospital following internal rules; the prescription of aspirin and statins was as per as recommended in the literature

A Mathematical model for Astrocytes mediated LTP at Single Hippocampal Synapses

Many contemporary studies have shown that astrocytes play a significant role in modulating both short and long form of synaptic plasticity. There are very few experimental models which elucidate the role of astrocyte over Long-term Potentiation (LTP). Recently, Perea & Araque (2007) demonstrated a role of astrocytes in induction of LTP at single hippocampal synapses. They suggested a purely pre-synaptic basis for induction of this N-methyl-D- Aspartate (NMDA) Receptor-independent LTP. Also, the mechanisms underlying this pre-synaptic induction were not investigated. Here, in this article, we propose a mathematical model for astrocyte modulated LTP which successfully emulates the experimental findings of Perea & Araque (2007). Our study suggests the role of retrograde messengers, possibly Nitric Oxide (NO), for this pre-synaptically modulated LTP.Comment: 51 pages, 15 figures, Journal of Computational Neuroscience (to appear

Exponential distribution of long heart beat intervals during atrial fibrillation and their relevance for white noise behaviour in power spectrum

The statistical properties of heart beat intervals of 130 long-term surface electrocardiogram recordings during atrial fibrillation (AF) are investigated. We find that the distribution of interbeat intervals exhibits a characteristic exponential tail, which is absent during sinus rhythm, as tested in a corresponding control study with 72 healthy persons. The rate of the exponential decay lies in the range 3-12 Hz and shows diurnal variations. It equals, up to statistical uncertainties, the level of the previously uncovered white noise part in the power spectrum, which is also characteristic for AF. The overall statistical features can be described by decomposing the intervals into two statistically independent times, where the first one is associated with a correlated process with 1/f noise characteristics, while the second one belongs to an uncorrelated process and is responsible for the exponential tail. It is suggested to use the rate of the exponential decay as a further parameter for a better classification of AF and for the medical diagnosis. The relevance of the findings with respect to a general understanding of AF is pointed out