50 resultados para Adelie_Isla-Owa


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Among bivalves, scallops are exceptional due to their capacity to escape from predators by swimming which is provided by rapid and strong claps that are produced by the phasic muscle interspersed with tonic muscle contractions. Based on the concept of oxygen and capacity-limited thermal tolerance, the following hypothesis was tested: ocean warming and acidification (OWA) would induce disturbances in aerobic metabolic scope and extracellular acid-case status and impair swimming performance in temperate scallops. Following long-term incubation under near-future OWA scenarios [20 vs. 10 °C (control) and 0.112 kPa CO2 (hypercapnia) vs. 0.040 kPa CO2 (normocapnic control)], the clapping performance and metabolic rates (MR) were measured in resting (RMR) and fatigued (maximum MR) king scallops, Pecten maximus, from Roscoff, France. Exposure to OA, either alone or combined with warming, left MR and swimming parameters such as the total number of claps and clapping forces virtually unchanged. Only the duration of the escape response was affected by OA which caused earlier exhaustion in hyper- than in normocapnic scallops at 10 °C. While maximum MR was unaffected, warm exposure increased RMR in both normocapnic and hypercapnic P. maximus resulting in similar Q 10 values of ~2.2. The increased costs of maintenance and the observation of strongly reduced haemolymph PO2 levels indicate that at 20 °C scallops have reached the upper thermal pejus range with unbalanced capacities for aerobic energy metabolism. As a consequence, warming to 20 °C decreased mean phasic force during escape performance until fatigue. The observed prolonged recovery time in warm incubated scallops might be a consequence of elevated metabolic costs at reduced oxygen availability in the warmth.

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Translation from the French "Cours de littérature slave professé au Collége de France".

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Incorporating further information into the ordered weighted averaging (OWA) operator weights is investigated in this paper. We first prove that for a constant orness the minimax disparity model [13] has unique optimal solution while the modified minimax disparity model [16] has alternative optimal OWA weights. Multiple optimal solutions in modified minimax disparity model provide us opportunity to define a parametric aggregation OWA which gives flexibility to decision makers in the process of aggregation and selecting the best alternative. Finally, the usefulness of the proposed parametric aggregation method is illustrated with an application in metasearch engine. © 2011 Elsevier Inc. All rights reserved.

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This PhD thesis analyses networks of knowledge flows, focusing on the role of indirect ties in the knowledge transfer, knowledge accumulation and knowledge creation process. It extends and improves existing methods for mapping networks of knowledge flows in two different applications and contributes to two stream of research. To support the underlying idea of this thesis, which is finding an alternative method to rank indirect network ties to shed a new light on the dynamics of knowledge transfer, we apply Ordered Weighted Averaging (OWA) to two different network contexts. Knowledge flows in patent citation networks and a company supply chain network are analysed using Social Network Analysis (SNA) and the OWA operator. The OWA is used here for the first time (i) to rank indirect citations in patent networks, providing new insight into their role in transferring knowledge among network nodes; and to analyse a long chain of patent generations along 13 years; (ii) to rank indirect relations in a company supply chain network, to shed light on the role of indirectly connected individuals involved in the knowledge transfer and creation processes and to contribute to the literature on knowledge management in a supply chain. In doing so, indirect ties are measured and their role as means of knowledge transfer is shown. Thus, this thesis represents a first attempt to bridge the OWA and SNA fields and to show that the two methods can be used together to enrich the understanding of the role of indirectly connected nodes in a network. More specifically, the OWA scores enrich our understanding of knowledge evolution over time within complex networks. Future research can show the usefulness of OWA operator in different complex networks, such as the on-line social networks that consists of thousand of nodes.

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2000 Mathematics Subject Classification: Primary 30C45, Secondary 26A33, 30C80

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This study surveys the ordered weighted averaging (OWA) operator literature using a citation network analysis. The main goals are the historical reconstruction of scientific development of the OWA field, the identification of the dominant direction of knowledge accumulation that emerged since the publication of the first OWA paper, and to discover the most active lines of research. The results suggest, as expected, that Yager's paper (IEEE Trans. Systems Man Cybernet, 18(1), 183-190, 1988) is the most influential paper and the starting point of all other research using OWA. Starting from his contribution, other lines of research developed and we describe them.

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MSC 2010: 30C45

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MSC 2010: 30C45

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MSC 2010: 30C45

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Human-assisted, trans-generational exposure to ocean warming and acidification has been proposed as a conservation and/or restoration tool to produce resilient offspring. To improve our understanding of the need for and the efficacy of this approach, we characterised life history and physiological responses in offspring of the marine polychaete Ophryotrocha labronica exposed to predicted ocean warming (OW: + 3 °C), ocean acidification (OA: pH -0.5) and their combination (OWA: + 3 °C, pH -0.5), following the exposure of their parents to either control conditions (within-generational exposure) or the same conditions (trans-generational exposure). Trans-generational exposure to OW fully alleviated the negative effects of within-generational exposure to OW on fecundity and egg volume and was accompanied by increased metabolic activity. While within-generational exposure to OA reduced juvenile growth rates and egg volume, trans-generational exposure alleviated the former but could not restore the latter. Surprisingly, exposure to OWA had no negative impacts within- or trans-generationally. Our results highlight the potential for trans-generational laboratory experiments in producing offspring that are resilient to OW and OA. However, trans-generational exposure does not always appear to improve traits, and therefore may not be a universally useful tool for all species in the face of global change.

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Wartości prawdziwe dobre i piękne są obecne w każdej kulturze. One dzięki procesowi, określonemu w XX wieku jako inkulturacja, pozwalają integrować je w chrześcijaństwie tak by człowiek mógł wyrażać wiarę w kulturze swojej i swoich przodków. Dzięki temu możliwe jest pełne zakorzenienie chrześcijaństwa w innych formach wyrazu niż biblijny. Chrześcijaństwo europejskie jest bardzo silnie związane z kulturą hellenistyczną. Tak bardzo, że często zapomina się o trudzie przechodzenia od kultury biblijnej do kultury Greków w wyrazie i obronie wiary. Tymczasem był to proces, który trwał przeszło trzy wieki. Język jest najważniejszym nośnikiem kultury, a pisma Kościoła powstały w języku greckim, co ułatwiało i przyspieszyło proces inkulturacji. Trzeba było jednak prawie trzystu lat zmagań o słowo, by z determinacją i odwagą wprowadzić niebiblijne pojęcie do wyznania wiary Kościoła. Ojcowie pierwszego powszechnego zgromadzenia biskupów, zwołanego przez cesarza Konstantyna, podpisali dokument, „Wyznanie wiary 318 Ojców”, w którym zaistniało słowo ὁμοούσιος w sformułowaniu Syn jest „współistotny Ojcu” (ὁμοούσιον τῷ πατρί). Oba sformułowania to wypowiedziane w okolicach Cezarei Filipowej i zapisane jako „Credo nicejskie” są, co do treści równoważne. Wyrażają tę samą prawdę objawioną w Jezusie Chrystusie, która trwa w przekazie oraz w interpretacji w Kościele, iż Jezus Chrystus jest Bogiem. By ukazać ten proces dojrzewania wyrazu wiary problematyka pracy skupia się przede wszystkim wokół pytania: „W jaki sposób przebiegał proces inkulturacji, który zaowocował przyjęciem niebiblijnego słowa w obronie wiary biblijnej, od strony pogan jak i od strony tych, którzy przyjęli Objawienie?” Po prawie trzystu latach dialogu z kulturą hellenistyczną, przyjęte w czasie zgromadzenia w Nicei pojęcie ὁμοούσιος obroniło religijną powagę chrześcijaństwa. Dzięki temu ujawniła się ranga Kościoła jako instytucji kierowanej przez biskupów i papieża w Rzymie. Ta wspólnota ukazała swą wielkość duchową zakorzenioną w poszukiwaniu prawdy. Ostoją tej wielkości były też kościoły domowe i życie mnisze zrodzone pod koniec III w. Termin ὁμοούσιος był w IV w. terminem teologicznie niedopracowanym, otwartym i dzięki temu ostatecznie stał się orężem walki o ortodoksję w życiu chrześcijan i na kolejnych soborach.

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Celem artykułu jest prezentacja myśli politycznej Ruchu Społeczeństwa Alternatywnego. W artytkule prezentowana jest diagnoza stanu sytuacji społeczenej w Polsce pierwszej połowy lat 80 prezentowana na łamach "Homka", propozycje programowe RSA oraz dyskuja nad metodami i strategią działania politycznego.