4,767 research outputs found
John Henry Newman’s Anglican Views on Judaism
The scant scholarship associated with Newman’s Anglican views about Judaism has focused on his negative rhetoric against Judaism and portrayed him as anti-Semitic. His Anglican writings, however, applied terms associated with Judaism in a typological sense to the political and religious realities of his day, primarily to support his apologetic agenda and to highlight threats to the Church of England. Simultaneously, he stressed the positive characteristics of Judaism, illustrated the continuity between Judaism and Christianity, and pointed out that the religious system of Judaism was divinely inspired and contained worthy examples for Christian living
Deep-sea rhythms: effects on community evaluation and new study technologies
Special issue Llum, foscor i éssers vius.-- 6 pages, 6 figuresIn their behavioural, physiological and molecular functioning, animals follow temporal patterns collectively known as biological rhythms. Massive three-dimensional displacements of species occur at periodicities ranging from 12.4 h (tidal rhythms) and 24 h (day-night rhythms) to months (e.g. seasonal reproductive rhythms). This temporal adjustment of behavioural activity to geophysical cycles in light intensity, photoperiod length and hydrodynamism produces a strong and complex temporal variability in marine ecosystems, which complicates ecological studies focusing on populations and biodiversity assessments. Important constraints in sampling repeatability at statistically relevant frequencies limit the progress of marine ecology, especially in the increasingly anthropic-threatened but still largely unexplored deep sea (65% of the planet’s surface is below 1000 m depth). Within the framework of a novel seafloor video-cabled observatory technology that is progressively being installed in large oceanographic networks, it is now possible to explore and monitor ecosystems at sampling frequencies and over temporal durations never attained before. Fluctuations in video-counted individuals can be considered a proxy of populational behavioural rhythms in response to cycles of environmental parameters measured simultaneously through oceanographic, chemical and geologic sensors. Time-series analysis protocols can be implemented according to the following steps: i) periodogram analysis for the detection of significant periodicity; ii) waveform analysis for the measurement of rhythm phases (e.g. diurnal/nocturnal or monthly/seasonal peaks); and iii) integrated waveform analysis. In waveform analysis (step ii), data sets will be sectioned into segments of length equal to the periodicity of the geophysical cycle of reference (as assessed in step i). The values of all sub-sets will be averaged at corresponding timings to obtain a consensus curve (the waveform). The identification of a peak will be carried out to relate the significant increase in population activity to a particular moment in the fluctuation of the geophysical cycle. The integrated analysis of waveforms for all species (in step iii) and geophysical cycles will be carried out to evidence the temporal linkage among peaks, as an indication of a reliable cause-effect relationshipPeer Reviewe
Ritmes al mar profund: efecte sobre l’avaluació de les comunitats i noves tecnologies d’estudi
In their behavioural, physiological and molecular functioning, animals follow temporal patterns collectively known as biological rhythms. Massive three-dimensional displacements of species occur at periodicities ranging from 12.4 h (tidal rhythms) and 24 h (day-night rhythms) to months (e.g. seasonal reproductive rhythms). This temporal adjustment of behavioural activity to geophysical cycles in light intensity, photoperiod length and hydrodynamism produces a strong and complex temporal variability in marine ecosystems, which complicates ecological studies focusing on populations and biodiversity assessments. Important constraints in sampling repeatability at statistically relevant frequencies limit the progress of marine ecology, especially in the increasingly anthropic-threatened but still largely unexplored deep sea (65% of the planet’s surface is below 1000 m depth). Within the framework of a novel seafloor video-cabled observatory technology that is progressively being installed in large oceanographic networks, it is now possible to explore and monitor ecosystems at sampling frequencies and over temporal durations never attained before. Fluctuations in video-counted individuals can be considered a proxy of populational behavioural rhythms in response to cycles of environmental parameters measured simultaneously through oceanographic, chemical and geologic sensors. Time-series analysis protocols can be implemented according to the following steps: i) periodogram analysis for the detection of significant periodicity; ii) waveform analysis for the measurement of rhythm phases (e.g. diurnal/nocturnal or monthly/seasonal peaks); and iii) integrated waveform analysis. In waveform analysis (step ii), data sets will be sectioned into segments of length equal to the periodicity of the geophysical cycle of reference (as assessed in step i). The values of all sub-sets will be averaged at corresponding timings to obtain a consensus curve (the waveform). The identification of a peak will be carried out to relate the significant increase in population activity to a particular moment in the fluctuation of the geophysical cycle. The integrated analysis of waveforms for all species (in step iii) and geophysical cycles will be carried out to evidence the temporal linkage among peaks, as an indication of a reliable cause-effect relationship
Temporal Shape Changes and Future Trends in European Automotive Design
Evolution produces genuine novelty in morphology through the selection of
competing designs as phenotypes. When applied to human creativity, the evolutionary
paradigm can provide insight into the ways that our technology and its design are modified
through time. The shape of European utilitarian cars in the past 60 years was analyzed in
order to determine whether changes occur in a gradual fashion or through saltation,
clarifying which are the more conserved and more variable parts of the designs. We also
attempted to predict the future appearances of the cars within the next decade, discussing
all results within the framework of relevant evolutionary-like equivalences. Here, we
analyzed the modification in the shape of European utilitarian cars in the past 60 years by
three-dimensional geometric morphometrics to test whether these changes occurred in a
gradual or more saltatory fashion. The geometric morphometric shape analysis showed that
even though car brands have always been preserving distinct shapes, all followed a gradual
pattern of evolution which is now converging toward a more similar fusiform and compact
asset. This process was described using Darwinian evolution as a metaphor to quantify and
interpret changes over time and the societal pressures promoting them.This research was funded by project RITFIM (ref. CTM2010-16274, of the Spanish national RTD
program. J. Aguzzi is a postdoctoral Fellow of the Spanish Ramón y Cajal Program (Spanish Ministry
of Economy and Competitiveness).We acknowledge support by the CSIC Open Access Publication Initiative through its Unit of Information Resources for Research (URICI).Peer reviewe
Matrix factorizations for quantum complete intersections
We introduce twisted matrix factorizations for quantum complete intersections
of codimension two. For such an algebra, we show that in a given dimension,
almost all the indecomposable modules with bounded minimal projective
resolutions correspond to such matrix factorizations.Comment: 13 page
Alla ricerca di un target per la somministrazione di oppioide in anestesia generale
L'Analgesia Nociception Index (ANI) è un indice di recente sviluppo per il monitoraggio del dolore del paziente che analizza, attraverso il tracciato elettrocardiografico, la varianza dell'intervallo RR (Heart Rate Variability, HRV). Questo dato, come mostrato in vari studi, riflette l'influenza del sistema nervoso autonomo sul nodo del seno. (1, 2)
Attraverso un logaritmo viene elaborato un indice numerico da 0 a 100, che sarà tanto più basso quanto maggiore è il dolore del paziente.
Ogni ciclo respiratorio è associato ad un fisiologico lieve aumento della frequenza cardiaca durante l’inspirazione (con relativa riduzione dell’intervallo RR), e ad una riduzione durante l’espirazione (con aumento dell’intervallo RR).
Questo pattern respiratorio è dovuto al fatto che, in un paziente senza dolore, è prevalente il tono parasimpatico. Durante l’inspirazione si ha lo stiramento dei recettori alveolari, che provocano un riflesso vagale il quale esita in una riduzione della frequenza cardiaca nella successiva fase del ciclo respiratorio, cioè quella espiratoria. Ciò si rifletterà in un basso indice ANI.
Un paziente che sperimenta uno stimolo dolorifico avrà un aumento del tono simpatico. Ciò risulterà in una importante riduzione del tono parasimpatico. La potenza del fisiologico riflesso parasimpatico durante il ciclo respiratorio si attenuerà moltissimo, lasciando pressoché invariata la frequenza cardiaca e la HRV in fase inspiratoria ed espiratoria. In questo caso invece avremo un basso indice ANI. (3)
I limiti di questo tipo di monitoraggio sono vari:
o Il valore dell’indice ANI è ottenibile quando gli alveoli polmonari vengono dilatati e i recettori di stiramento sono sollecitati (cosa che avviene sia con ventilazione a pressione negativa che positiva), ma non durante l’apnea (ANI non registrabile durante l’intubazione, ad esempio).
o L’indice ANI è registrabile solo se il riflesso parasimpatico agisce sulla frequenza cardiaca attraverso il nodo del seno. Tutte le condizioni in cui lo stimolo sia ectopico (ad es. fibrillazione atriale, presenza di pace maker) costituiscono un criterio di esclusione.
o Tutti i farmaci che vanno ad alterare il tono simpatico/parasimpatico (atropina, efedrina, catecolamine) interferiscono con l’affidabilità dell’indice ANI. (4)
In questo elaborato ci siamo proposti di valutare 60 pazienti sottoposti a tiroidectomia completa o lobectomia tiroidea, ASA I-II, in anestesia generale totalmente endovenosa in mantenimento con propofol 2% e remifentanyl 0,5 mcg/ml in infusione continua. 30 pazienti sono stati monitorati con ANI, con l’obiettivo di mantenere l’indice compreso tra 50 e 70 attraverso l’aggiustamento della dose di remifentanyl somministrata (espressa in mcg/kg/min). Negli altri 30 il dosaggio dell’oppioide intraoperatorio è stato effettuato solamente sulla base dei parametri clinici ed emodinamici (PA, FC).
1. PhysioDoloris: a monitoring device for analgesia / nociception balance evaluation using heart rate variability analysis. Logier R1, Jeanne M, De Jonckheere J, Dassonneville A, Delecroix M, Tavernier B.Conf Proc IEEE Eng Med Biol Soc. 2010;2010:1194-7
2. Pain/analgesia evaluation using heart rate variability analysis. Logier R1, Jeanne M, Tavernier B, De Jonckheere J. Conf Proc IEEE Eng Med Biol Soc. 2006;1:4303-6
3. Heart rate variability during total intravenous anesthesia: effects of nociception and analgesia. Auton Neurosci, Jeanne M, Logier R, De Jonckheere J, Tavernier B. 2009. 147(1-2): 91-6.
4. Validation of a graphic measurement of heart rate variability to assess analgesia/nociception balance during general anesthesia. Conf Proc IEEE Med Biol Soc, 2009.1:1840-
Video monitoring of Sparidae temporal rhythms: three-year study by OBSEA cabled observatory
Coco, S. ... et al.-- 7th International Workshop on Marine Technology – Martech Workshop 2016, 26-28 October 2016, Barcelona.-- 2 pages, 1 figure,1 tableThe abundance and composition of fish assemblages varies at different temporal scales as a product of diel and annual rhythms. In this study, we used a video-wired observatory (OBSEA, www.obsea.es) to monitor annual rhythms in a coastal fish assemblage with a 3-year data set (2012-2014). The photographs were acquired at 30 min frequency. Five species of the family Sparidae were studied (i.e. Dentex dentex, Diplodus sargus, Diplodus vulgaris, Diplodus annularis and Diplodus puntazzo) together with water temperature and daylength. The results of the annual rhythmicity analysis indicated that most of the peaks of abundance occured in the autumn months. Results suggest differentially temporal use of the reproductive or trophic nichePeer Reviewe
Using ORB, BoW and SVM to identify and track tagged Norway lobster Nephrops norvegicus (L.)
Sustainable capture policies of many species strongly depend on the understanding
of their social behaviour. Nevertheless, the analysis of emergent behaviour
in marine species poses several challenges. Usually animals are captured and
observed in tanks, and their behaviour is inferred from their dynamics and interactions.
Therefore, researchers must deal with thousands of hours of video data. Without
loss of generality, this paper proposes a computer vision approach to identify
and track specific species, the Norway lobster, Nephrops norvegicus. We propose an
identification scheme were animals are marked using black and white tags with a
geometric shape in the center (holed triangle, filled triangle, holed circle and filled
circle). Using a massive labelled dataset; we extract local features based on the ORB
descriptor. These features are a posteriori clustered, and we construct a Bag of Visual
Words feature vector per animal. This approximation yields us invariance to rotation
and translation. A SVM classifier achieves generalization results above 99%. In
a second contribution, we will make the code and training data publically available.Peer Reviewe
Underwater acoustic slant range measurements related to weather and sea state
Underwater range measurements are key factor in underwater acoustic positioning, used in Long Base-Line (LBL) or Ultra Short Base-Line (USBL) computing techniques. These measurements are commonly carried out through acoustic communications between modems and their accuracy can be affected by different factors, such as sea state, weather conditions, and obstacles in the line of sight propagation. This is especially important in shallow waters areas, where others phenomena such as multi-path have to be considered. Therefore, range accuracy and the associated position estimation errors are an important area of research. Here, we addressed the relation between range measurements variability and sea state (i.e. currents or waves height) as proxy of real-world conditions, affecting acoustic positioning performances. For that purpose, a long-term deployment have been carried out in the underwater cabled observatory OBSEA, which provide different measurements of the sea and weather state.Peer ReviewedPostprint (published version
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