431 research outputs found
Open subtitles 2018 : Statistical rescoring of sentence alignments in large, noisy parallel corpora
Peer reviewe
Biological and chemical oceanographic measurements in Far Northern Great Barrier Reef - February 1990
This report presents and sununarises the results of biological and chemical oceanographic
sampling carried out in the far northern Great Barrier Reef during February 1990. The region
sampled (ca. 11-13°S), lies adjacent to the eastern side of Cape York Peninsula, locations on
which are under consideration for national park declaration, the construction of a rocket
launching facility and silica sand mining. As little is known regarding the biological and
chemical oceanography of the region, a reconnaissance survey was carried out to obtain
baseline data on hydrographic, nutrient and sediment characteristics of shelf waters and
sediments. It is expected that the data presented herein will form part of the environmental
assessment for development in, and conservation of, the region and serve as a basis for
designing more detailed and focused water quality surveys
Fracturas del macizo trocantéreo. Estudio comparativo Ender-DHS: revision de 114 casos
Se presenta un estudio retrospectivo de 114 fracturas pertrocantéreas tratadas
con enclavado elástico de Ender (71) y tornillo placa deslizante, DHS (43). Se efectuó un estudio
estadístico descriptivo-comparativo entre los 2 grupos de pacientes según la técnica quirúrgica
empleada. Se constató un mayor índice de estabilidad usando el DHS (81%), frente al
6 1 % del otro grupo. La tasa de complicaciones fue del 16% y 55% respectivamente. Los resultados
clínicos fueron mejores en los enfermos tratados con DHS, fundamentalmente en
cuanto a la deambulación que se consiguió en el 98% (Ender 75%), ausencia de dolor y movilidad
conservada. Los autores piensan que la estabilidad preoperatoria no influye en la solidez
del montaje usando el DHS, pero con la técnica de Ender ésta disminuye en las fracturas inestables;
por ello, la técnica de Ender estaría solamente indicada en el tratamiento de fracturas
estables en pacientes de edad avanzada o con mal estado general, aunque en clara competencia
con el DHS.A retrospective study of 114 intertrochanteric fractures operated on either with
Ender's rods (71) or dynamic hip screws, DHS (43) is presented. A statistical descriptive-comparative
study between the 2 groups was attempted. There was a greater index of stability using the
DHS (82%) than Ender's rods (61%). The rate of complications was 16% and 55% respectively.
The clinical outcome was better in cases treated with DHS, specially for walking ability,
which was regained in the 98% of cases (Ender 75%), painless and preserved mobility. The authors
think that the stability before operation do not influence the solidity of the assembly using
the DHS device. On the contrary, with the Ender's technique the fixation is no satisfactory in
unstables fractures. Ender's rods would only be suitable for treatment of stable fractures in older
patient or with serious associated diseases, although in clear competition with the DHS
Attachment-specific speech patterns induce dysphoric mood changes in the listener as a function of individual differences in attachment characteristics and psychopathology
Objectives Early childhood experiences influence cognitive-emotional development, with insecure attachment predisposing to potential psychopathologies. We investigated whether narratives containing attachment-specific speech patterns shape listeners’ emotional responses and social intentions. Design First, 149 healthy participants listened to three narratives characteristic for secure, insecure-preoccupied, and insecure-dismissing attachment. Following each narrative, the wellbeing and interpersonal reactivity as a particular aspect of emotional reactivity of the listener were assessed. Likewise, psychopathological aspects of personality were evaluated. A follow-up study compared 10 psychosomatic patients with a current depressive episode and/or personality disorder with distinct depressive symptoms and 10 age- and gender-matched healthy controls. Methods Effects of narratives on listeners’ mental state were tested with repeated-measures AN(C)OVA. Mediating effects in the listener (attachment characteristics in the context of personality traits) were explored. Narrative effects were compared between patients and controls. Results Listening to insecure attachment narratives reduced wellbeing in controls. Nevertheless, tendency for social interaction was highest following the insecure-preoccupied narrative. Importantly, listeners’ individual attachment characteristics mediated the relationship between wellbeing/interpersonal reactivity following the insecure-preoccupied narrative and levels of psychopathology. Furthermore, compared with healthy participants, patients showed higher emotional reactivity following exposure to the insecure-preoccupied narrative, represented by lower wellbeing and lower estimation of friendliness towards the narrator. Conclusions Exposure to attachment-specific speech patterns can result in dysphoric mood changes. Specifically, the insecure-preoccupied narrative influenced the listeners’ emotional state, which was further mediated by the individual attachment patterns and psychopathological personality characteristics. This deepens the understanding of interpersonal processes, especially in psychotherapeutic settings
Opto-mechanical measurement of micro-trap via nonlinear cavity enhanced Raman scattering spectrum
High-gain resonant nonlinear Raman scattering on trapped cold atoms within a
high-fineness ring optical cavity is simply explained under a nonlinear
opto-mechanical mechanism, and a proposal using it to detect frequency of
micro-trap on atom chip is presented. The enhancement of scattering spectrum is
due to a coherent Raman conversion between two different cavity modes mediated
by collective vibrations of atoms through nonlinear opto-mechanical couplings.
The physical conditions of this technique are roughly estimated on Rubidium
atoms, and a simple quantum analysis as well as a multi-body semiclassical
simulation on this nonlinear Raman process is conducted.Comment: 7 pages, 2 figure
The puzzling issue of silica toxicity: are silanols bridging the gaps between surface states and pathogenicity?
Background: Silica continues to represent an intriguing topic of fundamental and applied research across various scientific fields, from geology to physics, chemistry, cell biology, and particle toxicology. The pathogenic activity of silica is variable, depending on the physico-chemical features of the particles. In the last 50 years, crystallinity and capacity to generate free radicals have been recognized as relevant features for silica toxicity. The ‘surface’ also plays an important role in silica toxicity, but this term has often been used in a very general way, without defining which properties of the surface are actually driving toxicity. How the chemical features (e.g., silanols and siloxanes) and configuration of the silica surface can trigger toxic responses remains incompletely understood. Main body: Recent developments in surface chemistry, cell biology and toxicology provide new avenues to improve our understanding of the molecular mechanisms of the adverse responses to silica particles. New physicochemical methods can finely characterize and quantify silanols at the surface of silica particles. Advanced computational modelling and atomic force microscopy offer unique opportunities to explore the intimate interactions between silica surface and membrane models or cells. In recent years, interdisciplinary research, using these tools, has built increasing evidence that surface silanols are critical determinants of the interaction between silica particles and biomolecules, membranes, cell systems, or animal models. It also has become clear that silanol configuration, and eventually biological responses, can be affected by impurities within the crystal structure, or coatings covering the particle surface. The discovery of new molecular targets of crystalline as well as amorphous silica particles in the immune system and in epithelial lung cells represents new possible toxicity pathways. Cellular recognition systems that detect specific features of the surface of silica particles have been identified. Conclusions: Interdisciplinary research bridging surface chemistry to toxicology is progressively solving the puzzling issue of the variable toxicity of silica. Further interdisciplinary research is ongoing to elucidate the intimate mechanisms of silica pathogenicity, to possibly mitigate or reduce surface reactivity. Keywords: Silica, Silicosis, Lung cancer, Auto-immune diseases, Surface reactivity, Silanol, Coating, Modelling, Spectroscopy, Atomic force microscop
The puzzling issue of silica toxicity: Are silanols bridging the gaps between surface states and pathogenicity?
Background: Silica continues to represent an intriguing topic of fundamental and applied research across various scientific fields, from geology to physics, chemistry, cell biology, and particle toxicology. The pathogenic activity of silica is variable, depending on the physico-chemical features of the particles. In the last 50 years, crystallinity and capacity to generate free radicals have been recognized as relevant features for silica toxicity. The 'surface' also plays an important role in silica toxicity, but this term has often been used in a very general way, without defining which properties of the surface are actually driving toxicity. How the chemical features (e.g., silanols and siloxanes) and configuration of the silica surface can trigger toxic responses remains incompletely understood. Main body: Recent developments in surface chemistry, cell biology and toxicology provide new avenues to improve our understanding of the molecular mechanisms of the adverse responses to silica particles. New physico-chemical methods can finely characterize and quantify silanols at the surface of silica particles. Advanced computational modelling and atomic force microscopy offer unique opportunities to explore the intimate interactions between silica surface and membrane models or cells. In recent years, interdisciplinary research, using these tools, has built increasing evidence that surface silanols are critical determinants of the interaction between silica particles and biomolecules, membranes, cell systems, or animal models. It also has become clear that silanol configuration, and eventually biological responses, can be affected by impurities within the crystal structure, or coatings covering the particle surface. The discovery of new molecular targets of crystalline as well as amorphous silica particles in the immune system and in epithelial lung cells represents new possible toxicity pathways. Cellular recognition systems that detect specific features of the surface of silica particles have been identified. Conclusions: Interdisciplinary research bridging surface chemistry to toxicology is progressively solving the puzzling issue of the variable toxicity of silica. Further interdisciplinary research is ongoing to elucidate the intimate mechanisms of silica pathogenicity, to possibly mitigate or reduce surface reactivity
The European Registered Toxicologist (ERT) : Current status and prospects for advancement
Acknowledgements We would like to thank the participants of the five workshops in which the issues presented in this paper were discussed and the revised guidelines prepared, as well as the EUROTOX Executive Committee and the societies of toxicology of Sweden, the Netherlands, Switzerland, Austria and France for their support which allowed the workshops to take place.Peer reviewedPostprin
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