588 research outputs found
Notas a "Voces castellanas y su equivalencia en valenciano. Voces valencianas y su equivalencia en castellano" por C.M.G., de 1825
En este artĂculo se estudia el primer diccionario bilingĂĽe valenciano-castellano, castellano-valenciano, de 1825, escrito por un autor anĂłnimo C.M.G., inĂ©dito hasta ahora. Este diccionario presenta un gran interĂ©s dialectal, sociolingĂĽĂstico e histĂłrico. Seguramente fue escrito por un autor del norte de CastellĂłn, como demuestran las particularidades dialectales del texto. Contiene más de 2000 voces, una parte de las cuales avanzan su fecha de registro en los diccionarios o añade nuevas acepciones a las conocidas en la lexicografĂa catalana. In this aricle is studied the first ever bilingual Valencian-Spanish, Spanish-Valencian dictionary, dated in 1825, by an anonymous author –C.M.G.-, never edited until nowadays. Such dictionary shows such a great dialectal, sociolinguistical, and historical value, the most sure is that it was written by a valencian author original from the north of CastellĂł as some characteristics common in the local dialect prove, and it contains more than 2000 vocies, which, part of them move the first known date of such entries to earlier dates in time, and others are new meanings for the existing registers in the catalan lexicography dictionaries
Los valencianismos del castellano de Valencia en los siglos XVII-XIX
Se edita el texto más antiguo conocido sobre los valencianismos del castellano, los “valencianismos” del Dr. Juan de Ayala Manrique (Valencia, 1699), escrito a raĂz de las disputas y discusiones de la Ă©poca sobre la pertenencia o no al castellano de muchas palabras y construcciones usadas en Valencia. Se intenta con ello atraer la atenciĂłn sobre las fases, mecanismos e interferencias lingĂĽĂsticas producidas en el proceso de adquisiciĂłn del castellano por los catanohablantes valencianos. The most antique known text about valencianismos in Spanish is edited: the “Valencianismos” of Dr. Juan de Ayala Manrique (Valencia, Spain, 1699), written as a result of the disputes and discussions of the time about the belonging to the Spanish language of a lot of words and constructions used in Valencia. The purpose of it is to draw attention to the phases, mechanisms and linguistic interferences produced in the process of acquisition of the Spanish language by the Catalan-speakers of Valencia
Effects of mechanical ventilation at low lung volume on respiratory mechanics and nitric oxide exhalation in normal rabbits
Lung mechanics, exhaled NO (NOe), and TNF-(alpha) in serum and bronchoalveolar lavage fluid were assessed in eight closed and eight open chest, normal anesthetized rabbits undergoing prolonged (3-4 h) mechanical ventilation (MV) at low volume with physiological tidal volumes (10 ml/kg). Relative to initial MV on positive end-expiratory pressure (PEEP), MV at low volume increased lung quasi-static elastance (+267 and +281%), airway (+471 and +382%) and viscolelastic resistance (+480 and +294%), and decreased NOe (-42 and -25%) in closed and open chest rabbits, respectively. After restoration of PEEP, viscoelastic resistance returned to control, whereas airway resistance remained elevated (+120 and +31%) and NOe low (-25 and -20%) in both groups of rabbits. Elastance remained elevated (+23%) only in closed-chest animals, being associated with interstitial pulmonary edema, as reflected by increased lung wet-to-dry weight ratio with normal albumin concentration in bronchoalveolar lavage fluid. In contrast, in 16 additional closed- and open-chest rabbits, there were no changes of lung mechanics or NOe after prolonged MV on PEEP only. At the end of prolonged MV, TNF-(alpha) was practically undetectable in serum, whereas its concentration in bronchoalveolar lavage fluid was low and similar in animals subjected or not subjected to ventilation at low volume (62 vs. 43 pg/ml). These results indicate that mechanical injury of peripheral airways due to their cyclic opening and closing during ventilation at low volume results in changes in lung mechanics and reduction in NOe and that these alterations are not mediated by a proinflammatory process, since this is expressed by TNF-(alpha) levels
The Structure of Screening in QED
The possibility of constructing charged particles in gauge theories has long
been the subject of debate. In the context of QED we have shown how to
construct operators which have a particle description. In this paper we further
support this programme by showing how the screening interactions arise between
these charges. Unexpectedly we see that there are two different gauge invariant
contributions with opposite signs. Their difference gives the expected result.Comment: 8 pages, LaTe
Combined assimilation of IASI and MLS observations to constrain tropospheric and stratospheric ozone in a global chemical transport model
Accurate and temporally resolved fields of free-troposphere ozone are of
major importance to quantify the intercontinental transport of pollution and
the ozone radiative forcing. We consider a global chemical transport model
(MOdèle de Chimie Atmosphérique à Grande Échelle, MOCAGE) in
combination with a linear ozone chemistry scheme to examine the impact of
assimilating observations from the Microwave Limb Sounder (MLS) and the
Infrared Atmospheric Sounding Interferometer (IASI). The assimilation of the
two instruments is performed by means of a variational algorithm (4D-VAR) and
allows to constrain stratospheric and tropospheric ozone simultaneously. The
analysis is first computed for the months of August and November 2008 and
validated against ozonesonde measurements to verify the presence of
observations and model biases. Furthermore, a longer analysis of 6 months
(July–December 2008) showed that the combined assimilation of MLS and IASI is
able to globally reduce the uncertainty (root mean square error, RMSE) of the
modeled ozone columns from 30 to 15% in the
upper troposphere/lower stratosphere (UTLS, 70–225 hPa). The assimilation of
IASI tropospheric ozone observations (1000–225 hPa columns, TOC – tropospheric O<sub>3</sub> column)
decreases the RMSE of the model from 40 to 20% in the tropics
(30° S–30° N), whereas it is not effective at higher latitudes.
Results are confirmed by a comparison with additional ozone data sets like the
Measurements of OZone and wAter vapour by aIrbus in-service airCraft (MOZAIC)
data, the Ozone Monitoring Instrument (OMI) total ozone columns and several
high-altitude surface measurements. Finally, the analysis is found to be
insensitive to the assimilation parameters. We conclude that the combination
of a simplified ozone chemistry scheme with frequent satellite observations
is a valuable tool for the long-term analysis of stratospheric and
free-tropospheric ozone
Exacerbations and lung function decline in COPD: New insights in current and ex-smokers
SummaryAimTo investigate whether there is a significant relationship between an increased frequency of exacerbations and the rate of forced expiratory volume in 1s (FEV1) decline in COPD patients.Methods–measurementsAbout 102 COPD patients (44 smokers, 58 ex-smokers) participated in a 3-year prospective study. Exacerbations were identified as worsening of patient's respiratory symptoms as recorded on diary cards. Spirometry was performed every 6 months. The effect of frequent exacerbations on lung function was investigated using random effects models.ResultsThe median (mean(95% CI)) annual exacerbation rate was 2.85 (3.1 (2.7–3.6)). Patients with an annual exacerbation rate over the median rate had significantly lower baseline post-bronchodilation FEV1(%pred), higher MRC dyspnoea score and chronic cough compared to patients who had an annual exacerbation rate less than the median. The average annual rate of FEV1(%pred), adjusted for smoking decline (ΔFEV1), was found significantly increased in frequent compared to infrequent exacerbators (P=0.017). The highest ΔFEV1 was observed in smokers frequent exacerbators and a significant interaction between exacerbation frequency and ΔFEV1 was also observed in ex-smokers.ConclusionsOur findings suggest that an increased frequency of exacerbations is significantly associated with FEV1 decline even in ex-smokers. Thus, smoking and frequent exacerbations may have both negative impact on lung function. Smoking cessation and prevention of exacerbations should be a major target in COPD
Using Facial Gestures to Drive Narrative in VR
We developed an exploratory VR environment, where spatial features and narratives can be manipulated in real time by the facial and head gestures of the user. We are using the Faceteq prototype, exhibited in 2017, as the interactive interface. Faceteq consists of a wearable technology that can be adjusted on commercial HMDs for measuring facial expressions and biometric responses. Faceteq project was founded with the aim to provide a human-centred additional tool for affective human-computer interaction. The proposed demo will exhibit the hardware and the functionality of the demo in real time
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Mmokolodi solar PV project – Demonstrating sustainable renewable energy system design and potential for Botswana rural electrification
The aim of this paper is to introduce the AU-funded distributed solar photovoltaic (PV) research project currently being implemented at the Mmokolodi Village in Botswana. The paper shall outline the potential of the project for rural electrification and assess system design considerations guaranteeing its sustainability. A descriptive methodology is considered sufficient to capture the complexity of the project's design goal and its sustenance beyond the project time. The inherent complexity cited underlines the need for a holistic system design view embracing technical, social, economical, environmental, and ownership dimensions. These dimensions are substantiated in the paper applying suitable frameworks. Within one of the frameworks, an overview of possible business models is explored, in particular looking at Product-Service Systems and related ownership models as promising approach for project sustainability. The current status of this ongoing research work limits definitive commentary about the expected final result. Whereas valid business case statements for sustaining the Mmokolodi project can already be made, the other sustainability metrics namely feasibility, viability and desirability remain projected goals. The results of this research exemplify the need for interdisciplinary collaboration in sustainable energy research undertakings. The assessments made will help future project implementers to anticipate implementation hurdles proactively. The results will help energy end-users at the Mmokolodi community to access affordable modern energy and assess its desirability. For policy planners these results may shape energy planning to embrace the complexity inherent in the energy planning process
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