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New triheteroyclic compounds containing quinazolinone, thiophene, andthiadiazole /thiazolidinone structureswere synthesized and characterized by FT-IR, 1H–NMR, and13C–NMRspectral data. The new compounds' inhibitory activities on urease and acetylcholinesterase were assessed. All triheterocyclic compounds with thiadiazole ring have urease and acetylcholinesteraseinhibitory activities.Especially compound 5a; 3-[(5-(phenylamino)-1,3,4-thiadiazol-2-yl]methyl-2-(thiophen-3-ylmethyl)quinazolin-4(3H)-onehas the best urease inhibition result with 13.30 ± 0.15 µg/mL IC50 value, and it also has the best acetylcholinesterase inhibition with 20.30 ± 0.15 µg/mL IC50 value. [ABSTRACT FROM AUTHOR]

Human beings begin their communication journey from the first moments of their lives. As soon as they are born, they express their emotions by shouting, crying and expressing themselves. These cries are not without meaning; they serve to communicate feelings such as pain, anger, fear, anxiety and even joy. It's difficult to distinguish precisely which emotion is at work; perhaps it's a mixture of all of them at the same time. For those around them, these first cries are the first "sign" that the newborn is alive. This is how the process of human communication begins. For almost a century, communication research has shown us that there is no such thing as clear, limpid and transparent communication. Believing this is a myth. Messages are often, if not always, confusing, obscure and ambiguous. The receiver interprets and decodes what they want, selects the data and the real challenges are often hidden. In short, communication, consciously or unconsciously, is omnipresent, but is it always perfect? No one can deny that communication before, during and after the COVID-19 pandemic is of equal magnitude. Its effect, as well as its importance, continues to affect and invade all sectors (companies, schools, personal relationships, professional relationships, etc.). Communication during the pandemic has been influenced by the need to transmit accurate and upto-date information about the pandemic, prevention measures and government guidelines. Governments, health organisations and the media have all played important roles in disseminating this information, often requiring rapid adaptations to meet the ever-changing needs of the population. In summary, communication before, after and during COVID-19 has been marked by significant changes in the way people and organisations communicate, with an increase in the use of distance communication technologies and a greater importance given to disseminating accurate and up-to-date information about the pandemic. Our research on communication is a field study carried out at INSEA in Rabat (National Institute of Statistics and Applied Economics). It was a three-year survey of 122 students on the ways in which students communicate their knowledge, skills and intentional behaviour in learning situations. In summary, our question addresses the modalities used before, during and after the COVID-19 crisis for successful pedagogical communication: How was pedagogical communication carried out? What are the most appropriate and effective communication modalities that motivate students? What strategies are adopted to keep students focused and attentive? What trends in pedagogical communication are we moving towards today and in the future? All these questions will be answered through systematic and participant observation (which involves immersion in the group being studied). The data is natural and rational (a behaviour determined in relation to aims and objectives). The students surveyed were recorded in situations of verbal interaction, questionnaires, direct interviews, online through Facebook and WhatsApp groups. [ABSTRACT FROM AUTHOR]

Cette étude cherche de part et d'autre à mettre en exergue l’interdépendance entre la création romanesque et l’essor numérique dans Les choses humaines de Karine Tuil. Nous avons essayé, dans une analyse multifonctionnelle en ce qui concerne la forme et le contenu, de délimiter les traits distinctifs de la notion de l’hybride, le mode de présentation du support numérique ainsi que son influence sur le déroulement de la narration, et enfin les procédés que l’auteure a pu réinvestir par le biais du nouveau langage numérique en faveur du genre romanesque composite, Nous avons trouvé que, tout en se référant surtout à la technologie virtuelle très actuelle, le périple fictif dans Les choses humaines de Karine Tuil problématise la notion de l’hybride et ses caractéristiques constitutives. L’auteure a réussi à créer un modèle narratif restructurant interactivement le réel ultracontemporain. L'originalité de ce genre est avant tout due à l’insertion du dispositif numérique de tout acabit dans la trame narrative sous-tendant l’interaction entre l’acte romanesque et le socle technologique hypermoderne occasionnant un cas d'inventivité qui a pu décentraliser le spatiotemporel, réel et virtuel, et universaliser le portrait de l’Homme contemporain. تستهدف هذه الدراسة إلقاء الضوء على فکرة تأثير الاحتواء المتبادل بين التصوير الروائي والطفرة الهائلة في مجال الرقمنة في واقعنا المعاصر من خلال رواية " شؤون البشر"، ""Les choses humainesللکاتبة الفرنسية کارين تويلKarine Tuil . لقد حاولنا تحديد السمات الفارقة لمفهوم النمط السردي الهجين لا سيما في وجود محتوى الرقمنة من حيث نسق الطرح ومدى التأثير في عملية السرد على صعيد الشکل والمضمون، وکذلک عرضنا الآليات التي مکنت الکاتبة من الاستفادة القصوى من معجم الرقمنة الحديث لصالح القالب الروائي الهجين في کنف الرواية؛ وذلک من خلال تحليل نقدي متعدد الأبعاد والوظائف. لقد دللنا في هذه الدراسة أنه بالاستناد إلى مجال الرقمنة فائقة الحداثة في رواية کارين تويلKarine Tuil ، عکَسَ المسار الروائي بکل وضوح اشکالية الخيال الهجين وسماته الأصيلة. وعليه حرصت الکاتبة على بناء نموذج سردي يعيد هيکلة الواقع المعاصر بشکل تفاعلي. وترجع أصالة هذا النوع من الکتابة في الأساس إلى فکرة إدماج عالم الرقمنة بين ثنايا النطاق الروائي کي ترتکز عليه عملية التفاعل المنشود بين القوام الروائي والواقع التکنولوجي، مما أسفر عن خلق حالة من الإبداع أدت إلى اللامرکزية الزمانية والمکانية في العالم الواقعي والافتراضي على حد سواء، وکذلک طرح صورة کونية للإنسان المعاصر ومشکلاته.

Résumé La Province du Bas-Uélé est entièrement agricole, les cultures pratiquées jadis étaient l’arachide, le coton et le caféier. Actuellement, les cultures vivrières pratiquées ne peuvent pas seules resoudre le problème de la pauvreté dont souffre la population. Il est donc le moment de penser à introduire les cultures de rente, en particulier le cacao à partir du Territoire de Bambesa. Cette étude qui a consistée à évaluer le comportement phenologique des cultivars de Yangambi a démontré que le cacaoyer peut être cultivé dans les conditions pedoclimatiques de Bambesa : Tous les trois hybrides introduits à Bambesa se sont bien comportés et peuvent être diffusés quant à leur comportement donc leur capacité d’adaptation. Abstract Bas-Uélé Province is entirely agricultural, crops grown in the past were peanuts, cotton and coffee. Currently, animal crops can not alone solve the problem of poverty that afflicts the population. It is therefore time to think about introducing cash crops, especially cocoa from the Bambesa Territory. This study, which evaluated the phenological behavior of Yangambi cultivars, showed that the cocoa tree can be cultivated under Bambesa pedoclimatic conditions: All three hybrids introduced at Bambesa have behaved well and can be disseminated as far as possible. their behavior and their ability to adapt.

L’intérêt de cette recherche est d’analyser, à l’appui de la lecture de quelques œuvres d’art, l’évolution de l’iconographie du « monstre » au fil des siècles, au travers des différentes acceptions que le terme a prises. Quels sont les éléments formels, stylistiques et iconologiques qui différencient les nombreuses déclinaisons de « monstre » dans notre arc temporel ? Quels sont les éléments historiques, culturels et sociaux qui ont engendré de tels changements de formes et de sens ? Et existe-t-il, parmi tous ces êtres extraordinaires, en dépit de la complexité des acceptions et des usages, des traits iconographiques et iconologiques communs ?

Copyright of VertigO is the property of La Revue Electronique en Sciences de l'Environnement VertigO and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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In Kafka’s literary world, several animals emerge; they belong to an odd and enigmatic fauna, on the edge between violence and artistry but also between stillness and music; according to the writer, scripture represents both the fault and the punishment waiting for the solitary artist. Animals, especially depicted as hordes of small mice or other rodents, also hint to the heterogeneous structure of the Self, who doesn’t manage to keep under control all the divisions in his ambiguous dentity. Through opposition between the point of view of the subject, who considers his own isolation as indispensable to carry on writing, and the multitude of escaping small animals, Kafka also expresses and experiences his own impossibility of “description” (Beschreibung). In the meantime, Kafka’s animals embody the creatural and unconscious sources of imagination the writer draws from that constantly escape his own control and willingness, pushing forwards into an unknown and inhospitable region, towards the wasteland, the eternal winter that can be identified with scripture. In writing, a deep metamorphosis of the Self takes place. Kafka shares this belief with one of the writers he most admired and considered his master, Gustave Flaubert, who firmly thought that, while writing, one loses his previous identity, becoming someone else, even assuming the appearence of the “otherness”. We can state that Kafka’s imagery of animals takes to the extreme the paradox and ambiguity the idea of writing relies on, also reproducing, especially, in his hybrid creatures, the feeling of uncertainty and lack of safety of the assimilated Jewish artist.

CTH251 is a high yielding flue-cured tobacco with improved leaf quality and is comparable to the check, CTH14. It has comparatively lower percentage total alkaloids than the check. Ground sucker (basal tillers) weight for CTH251 tended to be slightly lower than for the check, which may be more of an advantage for growers when controlling suckers during early season. CTH251 est une variété de tabac jaune à haut rendement et aux feuilles de qualité supérieure comparable au témoin CTH14. La proportion d'alcaloïdes totaux est plus faible que celle de la variété témoin. Le poids des drageons au ras du sol (talles de la base) de CTH251 a tendance à être légèrement plus faible que celui du cultivar témoin, ce qui pourrait constituer un avantage pour les cultivateurs quand ils suppriment les drageons en début de saison. [Traduit par la Rédaction] [ABSTRACT FROM AUTHOR]

Dans cet article, nous proposons d’interroger le rôle des représentations dans la conception et le déploiement d’un dispositif numérique de formation. Plus précisément, nous nous intéressons, d’une part, à une forme de « langue de l’organisation », c’est-à-dire à l’indexicalité (Coulon, 2007) du langage employé dans une organisation et au sein d’une culture professionnelle, et d’autre part, les cadres structurants (les process, les formalismes des documents, l’organigramme) qui conditionnent les représentations des individus. Notre terrain est constitué par un ensemble de travaux menés au sein d’un fabricant d’hélicoptères dans le cadre d’une thèse CIFRE et d’un appel à projets européen de conception d’un dispositif de formation d’opérateurs (pilotes et techniciens de maintenance).

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Apricot is an important fruit species cultivated in the world. Different varieties of apricot with various quality and sensory characteristics that vary according to the countries are consumed. It is important to breed new varieties to meet consumer demands. Therefore, in this study that was conducted with the 'Hacıhaliloğlu' x 'Boccucia' population to develop new varieties at a later stage, physical, chemical sensory characteristics of the hybrid population were investigated and the status of the population through PCA (Principal Component Analysis) and CA (Clustering Analysis) upon determining the correlation between properties evaluated. Significantly, high levels of variation were observed regarding fruit weight, color, firmness and harvest time. Fruit color and harvest time have been distinctive parameters in selecting genotypes. The dendrogram obtained from cluster analysis grouped 20 genotypes in the same group while the other genotypes were placed in a separate group. [ABSTRACT FROM AUTHOR]

Copyright of Synergies Inde is the property of GERFLINT (Groupe d'Etudes et de Recherches pour le Francais Langue Internationale) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Le mot hybride, employé aussi bien comme adjectif que comme substantif, a pendant longtemps été accompagné d’une connotation négative, véhiculant des idées de bizarrerie, de bâtardise, voire de monstruosité. L’objectif de cet article est de parcourir l’histoire et l’évolution de ce mot qui, dans nos sociétés contemporaines, apparaît dans de nombreux domaines spécialisés avec des connotations souvent positives, allant dans le sens de l’innovation et du progrès.

• Hybrid absorption/compression chiller or heat pump with working pair water/lithium bromide and mechanical vapor compressor allows for change of operating conditions or provides increased capacity. • Application as hybrid chiller with reduced driving heat temperature or increased cooling water temperature, as compared to standard absorption cycle. • Application as heat pump with increased temperature lift. • Required performance of turbo compressor is determined from target operating envelope of the hybrid chiller. • Semi-empirical model predicts operating characteristic of the compressor and provides design data for the impeller of the compressor. The concept and general considerations for the design of a hybrid absorption/compression cycle are presented. An electrically driven high-speed turbo compressor which is directly integrated in a single-stage water/LiBr absorption heat pump cycle provides a pressure lift for the refrigerant vapor transmitted from the evaporator to the absorber or from the desorber to the condenser, resulting in increased flexibility of the cycle for operation under non-standard boundary conditions. By detailed steady-state thermodynamic process simulation, three main operation modes are investigated concerning the required temperature level of the cooling water and the driving heat source as well as the increase of the chilled water capacity. Characteristic data for compression ratios between 1 and 3 are presented. Depending on the specific electrical input a significant change of the operating limits is observed. In order to assess the influence on the overall system efficiency, selected key figures such as driving power of the compressor, temperature lift, driving heat temperature level, as well as thermal and mechanical COP, are determined and discussed. As preparation for implementation of the concept with maximum flexibility, the required characteristic of the turbo compressor — governed by refrigerant vapor flow and pressure ratio — is deduced from the targeted operating envelope. Based on a fundamental physical model a preliminary design of the turbo compressor is found. This design has been further elaborated by a detailed fluid-dynamic and structural modeling of the compressor, allowing for a precise prediction of its performance and technical feasibility. [ABSTRACT FROM AUTHOR]

• Simulations of different hybrid desiccant A/C systems. • Absorption used for both cooling and dehumidification. • Proposed hybrid configuration significantly increases performance. • Proposed hybrid configuration allows improves control of supply air state. Air conditioning (A/C) systems serve two main functions: temperature and humidity control of the conditioned space. This work focuses on a hybrid A/C system consisting of a liquid desiccant system (LDS) and an absorption chiller. An efficient deep-dehumidification hybrid A/C system (EDHACS) configuration is proposed. It is designed to enhance both performance and control. A detailed simulation study of the EDHACS has been conducted, and selected results are described in this article. Liquid desiccant systems (LDS) are exceptionally good at air dehumidification, and hence capable of handling the latent heat load. In conventional air conditioning (A/C) systems, this task is achieved by over-cooling the air below its dew point, which leads to both thermodynamic and practical inefficiencies. An optimal A/C system may be hybrid, consisting of a chiller to handle the sensible load and a low-grade heat driven liquid-desiccant-system (LDS), potentially with storage capability, to handle the latent load. The hybrid system has the added advantage of allowing independent control of temperature and humidity, thereby providing much-improved thermal comfort. Simulation results show that the EDHACS outperforms any other hybrid configuration that was tested. Its dehumidifier is split in two to take advantage of both the ambient and the chiller cooling capacity as heat sinks. By minimizing absorbent circulation between the two dehumidifiers, two distinct dehumidifier temperature levels are maintained, thereby further improving performance – resulting in increased COP and capacity values, and lower supply air temperatures. [ABSTRACT FROM AUTHOR]

The paper provides a selection of manifold results and findings gained within a national research and leader project, called "addmanu", which has motivated a lot of other researchers and companies to go into this interesting field of metallic additive manufacturing. New material developments, lightweight AM-concepts, hybrids, components having a very complex geometry, production of very small channels, reduction of surface roughness, and the production of a series of parts in high-tech application areas are demonstrated. [ABSTRACT FROM AUTHOR]

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En s’arrêtant à la représentation des animaux non humains dans les écrits d’Alphonse de Lamartine et de Francis Ponge, deux poètes dont la production littéraire couvre les deux derniers siècles et qui s’intéressent clairement aux vies animales, cet article cherche à mettre en relief les limites de la représentation littéraire des animaux. Comme dans la plupart des productions culturelles de l’Occident moderne, chez Lamartine et Ponge, les animaux sont généralement réduits au symbolique. Malgré la bonne volonté des poètes, la poésie n’échappe pas à l’anthropocentrisme. Or, plutôt que de signaler la faillite de la poésie en ce qui concerne la représentation des animaux, ces limites constituent un point d’accès à des réalités hybrides dont il faut encore rendre compte.

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Copyright of Canadian Journal of Plant Science is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Canadian Journal of Plant Science is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Nanostructured metal sulfide-amine hybrid materials have attracted attention because of their unique properties and versatility as precursors for functional inorganic nanomaterials. However, large-scale synthesis of metal sulfide-amine hybrid nanomaterials is limited by hydrothermal and solvothermal preparative reaction conditions; consequently, incorporation of such materials into functional nanomaterials is hindered. An amine molecule-assisted refluxing method was used to synthesize highly uniform zinc sulfide⋅(diethylenetriamine)0.5 (ZnS⋅(DETA)0.5) hybrid nanosheets and nanobelts in a large scale. The obtained ZnS⋅(DETA)0.5 hybrid nanomaterials can be used as efficient precursors to fabricate functional ZnS nanomaterials and carbon encapsulated sulfur (S@C) nanocomposite cathodes for Li-S batteries. [ABSTRACT FROM AUTHOR]

Copyright of Cahiers Victoriens & Edouardiens is the property of Presses Universitaires de la Mediterranee and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Magnetic refrigeration as an alternative for vapor-compression technology has been the subject of many recent studies. Most of the studies focus on systems with limited cycle frequency in which a fluid transfers heat to and from the magnetocaloric material. A suggested solution for increasing the frequency is use of solid-state magnetic refrigeration in which thermal diodes guide the heat from the cold end to the warm end. In this work a solid-state refrigeration system with Peltier elements as thermal diodes is modeled in details unprecedented. The performance of Peltier elements and magnetocaloric materials under their transient working conditions after reaching cyclic steady state are simulated by two separate computer models using finite element method and finite volume method. The models, in parts and as a whole, are verified. The verified finite element model is used for a parametric study and the results are analyzed. [ABSTRACT FROM AUTHOR]

Les arts rhétoriques antiques, qui servent de fondement à la tradition médiévale, affirment l’impossibilité de représenter les êtres hybrides, marqués par une contradiction essentielle et une profonde laideur. Pourtant l’examen des portraits consacrés par le Roman de Perceforest à trois figures d’hybrides permet de déterminer les conditions et les limites de cette représentation. Il s’agit ici d’observer la manière dont le roman médiéval négocie l’impasse de la rhétorique antique et donne, dans le texte, sens et existence au corps hybride.

The introduction of imidazolinone-tolerant oilseed rape (Brassica napus; Clearfield®, CL OSR) meets with skepticism on volunteer control. This study examined the disposition to secondary seed dormancy of 15 CL OSR genotypes at two locations in south-west Germany in 2012/2013 (trial 1) between sown seed (F1) and harvested seed (F2), and effects of maternal environment on dormancy disposition on CL and non-CL OSR in 12 locations in Germany in 2011/2012 (trial 2). The CL genotypes differed in dormancy from 0 to 95.7% in the F1 generation and from 3.5 to 77.9% for their corresponding offspring (F2). The dormancy levels of the F1 generations corresponded to that of the F2 generations. This correlation was higher if seeds derived from flowers which have been isolated in the plastic bags and thus outcrossing has been prevented. Seed lots from individual isolated F1 plants deviated in dormancy by up to 30% from the mean of all isolated plants of a specific genotype. In trial 2, seeds from low dormancy genotypes tended to respond more strongly to maternal environment than high dormancy genotypes did. Precipitation during the period of ripening was positively correlated with dormancy (R = 0.78). Overall, breeders can use the dormancy values of the F1 generation to assess the potential of dormancy in their offspring, which are those seeds that are relevant for causing volunteers if several other external conditions are fitting. [ABSTRACT FROM AUTHOR]

Citrullus lanatus (Thunb.) Matsumura and Nakai (Cucurbitaceae) is an important cucurbit crop worldwide. Global production of watermelon is about 90 million metric tonnes per annum, making it among the top five most consumed fresh fruits. The objective of this study was to evaluate seed variability in different segregating populations, and determine heritability of traits of watermelon. Interspecific crosses were made between two cultivars of C. lanatus (Bebu and Wlêwlê Small Seeds (WSS) were performed at Research Station of Nangui Abrogoua University in Abidjan, Côte d'Ivoire. There was wide variability between parental, F1, BC1 (first generation of back-crossing) and F2 seeds. Seeds of all hybrid populations were intermediate versus those of the parents. Also, crossing did not affect F1 and F2 seed characters, but affected those of BC1 because of maternal effects. Thus, back-crossing on Bebu cultivar produced seeds which looked like those of Bebu; while backcrossing on WSS cultivar produced seeds similar to those of WSS. Principal Component Analysis (PCA) and individuals repartitioning revealed that Bebu and WSS cultivars were genetically distinct and showed three main groups: two groups from each parental line and one from a recombinant line (hybrids). F2 population had a wide individual's dispersion, and contained seeds of all other populations. High heritability was observed for all evaluated characters. [ABSTRACT FROM AUTHOR]

Cette recherche porte sur l’expérience de shopping combinant des navigations entre les espaces marchands réel et virtuel. L’analyse de trente-cinq récits de consommateurs permet de comprendre et de conceptualiser cette expérience sous l’angle d’une diversité de trajectoires vécues comme naturelles et sans effort par les répondants. En effet, même si les canaux ne sont pas intégrés, l’expérience vécue par le client n’en est pas pour autant fragmentée. Celle-ci peut même être sublimée par le rôle très actif joué par le consommateur. Les résultats mettent aussi au jour l’importance d’une dimension sociale de l’expérience cross-canal qui permet au consommateur de rester connecté avec sa sphère privée ce qui constitue un apport à la littérature existante. Des pistes de réflexion managériales sont proposées notamment sur la manière dont les professionnels peuvent co-construire des formes inédites de shopping avec leurs clients et sur les limites d’un shopping à la fois « sans-couture » et trop formaté. [ABSTRACT FROM AUTHOR]

This article discusses changes in sunflower breeding objectives since the introduction of hybrid varieties 50 years ago. After a reminder of the importance of some early programmes, Canadian in particular, the present situation for each breeding objective is compared with those encountered earlier. Breeding for yield has changed from maximum possible yield under intensive agriculture to yield with resistance to abiotic stresses, moderate droughts and shallow soils in particular, helped by collaboration with agronomists to produce crop models. Breeding for oil has changed from quantity to quality and the value of seed meal is again becoming economically important. Necessary disease resistances vary with agronomic practises and selection pressure on pathogens according to varietal genetics. The possibilities of new types of sunflower are also discussed. Advances in genomics will change breeding procedures, but with rapidly changing molecular techniques, international collaboration is particularly important. [ABSTRACT FROM AUTHOR]

Developing highly active catalysts for the oxygen evolution reaction (OER) is of paramount importance for designing various renewable energy storage and conversion devices. Herein, we report the synthesis of a category of Co-Pi analogue, namely cobalt-based borate (Co-Bi) ultrathin nanosheets/graphene hybrid by a room-temperature synthesis approach. Benefiting from the high surface active sites exposure yield, enhanced electron transfer capacity, and strong synergetic coupled effect, this Co-Bi NS/G hybrid shows high catalytic activity with current density of 10 mA cm−2 at overpotential of 290 mV and Tafel slope of 53 mV dec−1 in alkaline medium. Moreover, Co-Bi NS/G electrocatalysts also exhibit promising performance under neutral conditions, with a low onset potential of 235 mV and high current density of 14.4 mA cm−2 at 1.8 V, which is the best OER performance among well-developed Co-based OER electrocatalysts to date. Our finding paves a way to develop highly active OER electrocatalysts. [ABSTRACT FROM AUTHOR]

Les rendements et les résistances aux maladies de 4 groupes de 5 variétés de tournesol correspondant aux génotypes les plus cultivés en France depuis 1965 ont été comparés sur deux années d’expérimentation : 25 essais “rendements” et 7 essais “maladies”. Les observations ont montré un gain moyen de rendement en grain de 40% pour les 5 variétés cultivées après 1995 par rapport aux 5 variétés cultivées avant 1975, soit une progression moyenne de 33 kg/ha (ou 1,3%) par an, avec une accélération marquée pour les dernières années. L’augmentation du rendement huilier (50%) est essentiellement due, à partir de 1980, au gain de rendement en grain; en effet, la teneur en huile reste stable depuis cette date. Les niveaux de précocité et les tailles sont, en moyenne, les mêmes depuis 30 ans. Par contre les variétés actuelles sont nettement moins sensibles à la verse et aux maladies : réduction de la sensibilité à la verse de 80%, aux attaques de Sclerotinia sur capitule de 60% et de 30% pour les attaques de Phomopsis sur tige. Pendant la première décennie, l’augmentation du rendement est liée à une forte augmentation du nombre de grains à l’hectare. Au contraire, nous observons une augmentation significative du poids de 1 000 grains durant la dernière décennie. Sept essais “rendement” ont été touchés par des attaques parasitaires non négligeables, ce qui a permis de montrer que 25% de l’augmentation du rendement pouvait être expliqué par une augmentation de la résistance à Sclerotinia ou au phomopsis. Ce sont dans les conditions pédoclimatiques du Centre de la France qui donnent de forts potentiels de rendement mais des risques d’attaques parasitaires importants, que les variétés récentes expriment pleinement leur haut niveau de productivité. Les auteurs concluent que, dans un contexte d’une politique agricole soutenant cette espèce, les variétés modernes devraient être adaptées aux régions à fort rendement

A series of pyrimidine alkynyl derivatives were designed and synthesized as new Bcr-Abl inhibitors by hybriding the structural moieties from GNF-7, ponatinib and nilotinib. One of the most potent compounds 4e strongly suppresses Bcr-Abl WT and Bcr-Abl T315I kinase with IC 50 values of 5.0 and 9.0 nM, and inhibits the proliferation of K562 and murine Ba/F3 cells ectopically expressing Bcr-Abl T315I cells with IC 50 values of 2 and 50 nM, respectively. It also displays good pharmacokinetics properties with an oral bioavailability of 35.3% and T 1/2 value of 48.7 h, and demonstrates significantly suppression on tumor growth in xenografted mice of K562 and Ba/F3 cells expressing Bcr-Abl T315I . These inhibitors may serve as lead compounds for further developing new anticancer drugs overcoming the clinically acquired resistance against current Bcr-Abl inhibitors. [ABSTRACT FROM AUTHOR]

The synthesis of complex and hybrid oxide microstructures is of fundamental interest and practical applications. However, the design and synthesis of such structures is a challenging task. A solution-phase process to synthesize complex silica and silica-titania hybrid microstructures was developed by exploiting the emulsion-droplet-based step-by-step growth featuring shape control. The strategy is robust and can be extended to the preparation of complex hybrid structures consisting of two or more materials, with each having its own shape. [ABSTRACT FROM AUTHOR]

Copyright of Strategic Universe Journal / Univers Strategic is the property of Dimitrie Cantemir Christian University, Institute for Security Studies and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A fern hybrid of the genus Pleopeltis was discovered on Robinson Crusoe Island in the Juan Fernández Archipelago, off the coast of Chile, and is described as P. xcerro-altoensis. Its putative parents are P. macrocarpa and P. masafuerae, two species present in the archipelago. [ABSTRACT FROM AUTHOR]

Copyright of Canadian Tax Journal / Revue Fiscale Canadienne is the property of Canadian Tax Foundation and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

La combinaison de plusieurs sources d’énergies renouvelables permet d’optimiser au maximum les systèmes de production d’électricité, aussi bien du point de vue technique qu’économique. Le capteur hybride photovoltaïque/thermique (PV/T) convertit l’énergie solaire en chaleur et en électricité. Nous présenterons dans cet article, une étude des performances électriques et thermiques d’un capteur hybride à travers l’élaboration d’un bilan thermique qui fait intervenir les échanges thermiques entre les différents composants du capteur hybride. Les résultats obtenus permettent de penser que ce type de collecteur constitue une bonne alternative aux modules photovoltaïques et aux capteurs thermiques classiques séparément installés.

Butternut (Juglans cinerea L.) trees are being extirpated from their natural range by an epidemic caused by a fungal pathogen. Widespread mortality is reminiscent of past epidemics on American chestnut (Castanea dentata (Marsh.) Borkh.) and American elm (Ulmus americana L.). Butternut has remained relatively understudied, resulting in unsampled areas and gaps in our understanding of this forest epidemic and the future outlook of this species in North America. The previously unsampled area consisting of the northeastern United States was surveyed for the presence of J. cinerea, and several population health metrics were recorded, including recruitment, disease pressure, and hybridization. A total of 252 butternut trees were sampled. Analysis indicates that there is insufficient J. cinerea recruitment to maintain population sizes. Further compounding low recruitment, butternut saplings demonstrate elevated levels of disease impact from the fungal pathogen Ophiognomonia clavigignentijuglandacearum Broders & Boland. Natural hybridization of butternut with introduced congenics such as Juglans ailantifolia Carrière is strongly associated with lower disease impact. Hybrid trees displayed an average of 2.4 cankers per tree compared with 4.5 cankers for nonhybrid butternut. Further niche and resistance studies are required to assess whether butternut hybrids can replace butternut in a natural setting. It still remains uncertain whether tree size or habitat affect disease impact; however, smaller trees, often residing in riparian habitats, were found to have a greater number of cankers. The data presented here, combined with past studies, provide critical information for use in butternut management strategy plans. [ABSTRACT FROM AUTHOR]

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Copyright of Synergies Roumanie is the property of GERFLINT (Groupe d'Etudes et de Recherches pour le Francais Langue Internationale) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Durant la conversion photovoltaïque du capteur solaire, une chaleur est générée, ce qui augmentera la température de la cellule photovoltaïque et causera une chute de son rendement. Ce phénomène est dû à la partie du rayonnement solaire non absorbée par les cellules et qui sera à l’origine de son échauffement. Cet échauffement a été considéré comme néfaste pour le rendement des capteurs solaires photovoltaïques, et plusieurs efforts ont été consentis pour évacuer cette chaleur. Il y a eu aussi l’aide d’exploiter ce phénomène par la combinaison des systèmes photovoltaïques avec un système thermique pour former le capteur hybride PVT, qui va générer en même temps de l’électricité et de la chaleur. L’objectif de ce travail est d’étudier l’influence des paramètres externes et internes sur les performances thermique et électrique du capteur hybride photovoltaïque thermique PVT.

Le capteur hybride photovoltaïque/thermique (PV/T) convertit l’énergie solaire en chaleur et en électricité. Les avantages de combiner un collecteur thermique et un module PV dans un seul capteur sont l’augmentation de l’efficacité totale de la conversion d’énergie solaire et l’uniformité architecturale dans le cas d’utilisation sur un toit. Les coûts seraient également réduits, comparés aux deux systèmes (photovoltaïque et thermique) séparément installés. Nous présenterons dans cet article, une étude de simulation numérique sur le comportement thermique des capteurs hybrides à travers l’élaboration de la cartographie thermique du capteur hybride photovoltaïque thermique. La combinaison d’un capteur thermique et d’un panneau photovoltaïque dans un seul capteur permet l’augmentation de l’efficacité de la conversion totale de l’énergie solaire. Un effet de synergie peut être obtenu dans une structure associant ces deux dispositifs de façon judicieuse à ceux du système photovoltaïque et thermique séparément installés. Les résultats obtenus permettent de dire que le panneau photovoltaïque est un générateur d’énergie calorifique qui peut être exploité pour chauffer de l’eau, ou pour préchauffer l’espace, ou bien encore l’associer avec une pompe à chaleur pour la climatisation.

Abstract: Taking a novel hybrid-power gas engine heat pump as an example, fuel-consumed rate, fuel-consumed flow, fuel conversion efficiency and life cycle assessment were used to analyze energy-saving effect and natural gas environmental benefits on human health, ecosystem quality and resource consumption through contrast with electric power consumption model. The test results show that the fuel conversion efficiency under different operating conditions of HPGHP is higher than conventional GHP under the same load. Besides, from the total indicator, scores on resource consumption is the highest. Gaseous product is mainly CO2 and other carbon or sulfur oxide gases are discharged in form of negative or water body, which means the use of natural gas effectively control the pollution gas emissions. At last, concept of environmental benefit time was established; the result shows that HPGHP can embody better environmental benefits than gas heat pump when running more than 1778 h. [Copyright &y& Elsevier]

Copyright of Philological Research & Studies. Romance Languages Series / Studii şi Cercetări Filologice. Seria Limbi Romanice is the property of Philological Research & Studies. Romance Languages Series and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Abstract: The hybrid magnetic bearing using permanent magnets and the high temperature superconductor (HTSC) has been developed. Repulsive force of the permanent magnet is introduced to increase the load weight of the magnetic bearing. Effect of the hybrid system has been shown. Although the previous configuration improves the load weight of the rotor, levitation and guidance stability has been decreased because of the repulsive force of the permanent magnet. Three-dimensional numerical analysis of the system has been undertaken to reduce lateral force which decreases lateral stability of the rotor. From the results, effective arrangement of the hybrid system is given. Increment of the load weight is confirmed. Influence of the hybrid system on the pinning force between the HTSC and the permanent magnet is shown to be smaller than previous one. [Copyright &y& Elsevier]

Abstract: A new model for simulating air-to-refrigerant fin-and-tube heat exchangers with computational fluid dynamics (CFD)-based air propagation is introduced. This model is based on a segment-by-segment approach and is developed to be a general purpose and flexible simulation tool. The model superimposes a CFD mesh on the heat exchanger model’s geometric grid, interprets the CFD results, and processes them to generate the air propagation path through the heat exchanger. The model is capable of accounting for air flow maldistribution and other complex flow patterns including recirculation zones within the heat exchanger, as well as, entrainment of exit flow into the heat exchanger, using both two-dimensional (2D) and three-dimensional (3D) CFD results. The modeling results show that the overall predicted heat load using 3D-CFD simulation results agrees within ±4% of the experimental data, without employing any multipliers on air side correlations. [Copyright &y& Elsevier]

The Karnataka African Indians (Siddis, Habshis and Cafrees), drawing on both Indian performing arts and their African heritage, use dance and street theatre for political action, entertainment, social critique and self-expression. This paper focuses on Siddi dance and theatre in Uttara Kannada (North Karnataka), South India. Karnataka Siddis number about twenty thousand (Prasad, 2005). Using dramatic aesthetics, performers portray farming, hunting, child labour, violence against women and domestic work motifs to articulate Siddi grundnorms (foundational norms). I address how some Siddi dances and street theatre parallel and yet may differ from other performing arts in South India. Further, the paper complicates the current discourse on how diasporic African communities use the performing arts. My paper goes beyond the Atlantic Diaspora model. It examines ways in which Siddis of South Asia use their dance and theatre to express multiple domains of cultural art forms alongside the everyday use of such performances including a counter-hegemonic stance. [ABSTRACT FROM AUTHOR]

A new class of nanosized metal–organic alloys (MORALs) has been synthesized for the first time. Silver nanoparticles doped with Cu(II) and Fe(III) phthalocyanines were thus synthesized in the presence of sodium dodecyl sulfate (SDS). The resulting materials were characterized by means of XRD, SEM, TEM coupled to energy dispersive X-ray analysis, and thermogravimetric analysis. No leaching of the photoactive dopant species was observed in water or in common organic solvents. On a synthétisé pour la première fois une nouvelle classe d’alliages métallo-organiques « MORALs à l’échelle nano. On a ainsi synthétisé des nanoparticules d’argent dopées avec des phtalocyanines de Cu(II) et de Fe(III) en présence de sulfate de dodécyle et de sodium. Les produits obtenus ont été caractérisés par les techniques de diffraction des rayons X (DRX), de microscopie électronique à balayage (MEB) et de microscopie électronique à transmission (MET) couplées à des analyses de rayons X à dispersion d'énergie et d’analyse thermogravimétrique. On n’a observé aucune lixiviation des espèces dopantes photoréactives, que ce soit dans l’eau ou dans les solvants organiques communs. [ABSTRACT FROM AUTHOR]