Bibliografie tematiche / Centres

Letteratura scientifica selezionata sul tema "Centres"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 19 febbraio 2022

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Articoli di riviste sul tema "Centres"

Yan, Z., N. Raza, L. Van Waerbeke, A. J. Mead, I. G. McCarthy, T. Tröster e G. Hinshaw. "An analysis of galaxy cluster mis-centring using cosmological hydrodynamic simulations". Monthly Notices of the Royal Astronomical Society 493, n. 1 (1 febbraio 2020): 1120–29. http://dx.doi.org/10.1093/mnras/staa295.

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ABSTRACT The location of a galaxy cluster’s centroid is typically derived from observations of the galactic and/or gas component of the cluster, but these typically deviate from the true centre. This can produce bias when observations are combined to study average cluster properties. Using data from the BAryons and HAloes of MAssive Systems (BAHAMAS) cosmological hydrodynamic simulations, we study this bias in both two and three dimensions for 2000 clusters over the 1013–1015 M⊙ mass range. We quantify and model the offset distributions between observationally motivated centres and the ‘true’ centre of the cluster, which is taken to be the most gravitationally bound particle measured in the simulation. We fit the cumulative distribution function of offsets with an exponential distribution and a Gamma distribution fit well with most of the centroid definitions. The galaxy-based centres can be seen to be divided into a mis-centred group and a well-centred group, with the well-centred group making up about $60{{\ \rm per\ cent}}$ of all the clusters. Gas-based centres are overall less scattered than galaxy-based centres. We also find a cluster-mass dependence of the offset distribution of gas-based centres, with generally larger offsets for smaller mass clusters. We then measure cluster density profiles centred at each choice of the centres and fit them with empirical models. Stacked, mis-centred density profiles fit to the Navarro–Frenk–White dark matter profile and Komatsu–Seljak gas profile show that recovered shape and size parameters can significantly deviate from the true values. For the galaxy-based centres, this can lead to cluster masses being underestimated by up to $10{{\ \rm per\ cent}}$.

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Tamulevičienė, Daiva. "Responsibility centres in the system of controlling". Buhalterinės apskaitos teorija ir praktika, n. 15 (10 aprile 2014): 126–40. http://dx.doi.org/10.15388/batp.2014.15.11.

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Controlling is the new concept of modern management based on planning, control, accountability, and coordinate and consultative activity. One of the essential conditions of the installation of controlling is decentralization of management. The information in the system of controlling is accumulated and analysed not at the level of the whole company, but at the separate segments called as responsibility centres. The aim of the article is to examine the significance of the responsibility centres in the system of controlling and to propose the methodology of responsibility centres establishment and evaluation of theirs activity. The responsibility centre might be a division of the company or some segment of activity or geography. Depending on what responsibility centres would be created in the company, that would have an effect on efficiency of the controlling system‘s behaviour. Although there exist many different features of the classification of responsibility centres, it is appropriate, in the companies‘ practice, to make responsibility centres in accordance with the fields of activity: cost, revenue, profit and investment centres. It is appropriate to make and install the system of responsibility centres and internal reporting by suggested sequence of four stages: organizational structure diagnostics; establishment of responsibility centres; establishment of internal reporting by the responsibility centres and establishment of the system of evaluation of the responsibility centres activity and motivation of employees. The purpose of responsibility centres and installation of responsibility accounting in the controlling system is to ensure an efficient behaviour of the organization and the maximization of its results both in short-term and in long-term perspective. The only way to reach the purpose is by evaluating the input of each responsibility centre‘s to the overall result. The controlling service‘s task is to solve all the problems that occur in practice when establishing the responsibility centres and the reporting of responsibility centres and to select such indicators of the evaluation of each centre that would reflect the connection of activity of corresponding centre‘s employees and their achievements to the goals of organization in the best possible way.

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Bates, Katherine E., Sunkyung Yu, Colleen Mangeot, Judy A. Shea, David W. Brown e Karen Uzark. "Identifying best practices in interstage care: using a positive deviance approach within the National Pediatric Cardiology Quality Improvement Collaborative". Cardiology in the Young 29, n. 3 (26 febbraio 2019): 398–407. http://dx.doi.org/10.1017/s1047951118002548.

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AbstractIntroductionTo identify interstage best practices associated with lower mortality, we studied National Pediatric Cardiology Quality Improvement Collaborative centres registry using a positive deviance approach.MethodsPositive deviant and control centre team members were interviewed to identify potential interstage best practices. Subsequently, all collaborative centres were surveyed on the use of these practices to test their associations with centre mortality. Questionnaires were scored using Likert scales; the overall score was linearly transformed to a 0–100-point scale with higher scores indicating increased use of practices. Mortality was based on patients enrolled after a centre’s first year in the collaborative. Centre mortality rates were divided into tertiles. Survey scores for the low mortality tertile were compared with the other tertiles.ResultsFor this study, seven positive deviant and four control teams were interviewed. A total of 20 potential best practices were identified, including team composition, improvement practices, and parent involvement. Questionnaires were completed by 36/43 eligible centres, providing 1504 patients for analysis. Average survey score was 50.2 (SD 13.4). Average mortality was 6.1% (SD 4.1). There was no correlation between survey scores and mortality (r=0.14, p=0.41). The one practice associated with the low mortality tertile was frequency of discussion of interstage results: 58.3% of low mortality teams discussed results at least monthly versus 8.4% of the middle and high tertile centres (p=0.02).ConclusionsLow-mortality centres more frequently discuss interstage results than high-mortality centres. Heightened awareness of outcomes may influence practice; however, further study is needed to understand the variation in outcomes across centres.

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Humar, Atul, Jeff Lipton, Hans Messner, Allison McGeer e Tony Mazzulli. "A Cross-Canada Survey of Cytomegalovirus Prevention and Treatment Practices in Bone Marrow Transplant Recipients". Canadian Journal of Infectious Diseases 10, n. 6 (1999): 410–14. http://dx.doi.org/10.1155/1999/480541.

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OBJECTIVE: To gather information about cytomegalovirus (CMV) prevention and treatment practices in bone marrow transplantation (BMT) in Canada.DESIGN: A questionnaire was mailed to all centres across Canada performing BMT in January 1998. A second mailing was sent three months later.POPULATION STUDIED: Data on 15 centres performing allogeneic BMT (total patients 459) and 16 centres (total patients 703) performing autologous BMT were obtained.RESULTS: For allogeneic BMT, all donors and recipients had pretransplant CMV serology performed. Nine centres gave CMV-negative blood to only donor-negative/recipient-negative patients, four centres to all patients and two centres to other subgroups. All allogeneic BMT centres had a strategy for CMV prevention. Three centres used universal ganciclovir prophylaxis, while 12 centres used some form of pre-emptive ganciclovir therapy based on weekly antigenemia assays (four centres), weekly polymerase chain reaction (two centres), CMV blood cultures (one centre), CMV throat and urine cultures (one centre), CMV screening bronchoscopy (two centres), or a combination of antigenemia plus bronchoscopy (two centres). The dose and duration of pre-emptive ganciclovir varied considerably from centre to centre. In addition, many centres used high dose acyclovir universally for a variable period of time post-BMT. For the treatment of CMV pneumonia, 14 centres used ganciclovir plus immunoglobulin (IG) and one centre used ganciclovir alone. Ganciclovir treatment duration ranged from two to 11 weeks and the number of doses of IG from three to 18. Thirteen of 16 autologous BMT centres screened patients for CMV pretransplant. Ten centres used CMV negative blood for some or all of their patients. Only one centre performed routine CMV monitoring after autologous BMT.CONCLUSIONS: Practices for the prevention of CMV disease in BMT patients differ widely across centres, and further data may assist in developing a consensus regarding the optimal approach to CMV management.

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Liu, Jie, e Andreas Terzis. "Sensing data centres for energy efficiency". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 370, n. 1958 (13 gennaio 2012): 136–57. http://dx.doi.org/10.1098/rsta.2011.0245.

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Data centres are large energy consumers today, and their consumption is expected to increase further, driven by the growth in cloud services. The large monetary cost and the environmental impact of this consumption have motivated operators to optimize data centre management. We argue that one of the underlying reasons for the low-energy utilization is the lack of visibility into a data centre's highly dynamic operating conditions. Wireless sensor networks promise to remove this veil of uncertainty by delivering large volumes of data collected at high spatial and temporal fidelities. The paper summarizes data centre operations in order to describe the parameters that a data centre sensing network should collect and motivate the challenges that such a network faces. We present technical approaches for the problems of data collection and management and close with an overview of a data centre genome, an end-to-end data centre sensing system.

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Zhang, Y., T. Jeltema, D. L. Hollowood, S. Everett, E. Rozo, A. Farahi, A. Bermeo et al. "Dark Energy Surveyed Year 1 results: calibration of cluster mis-centring in the redMaPPer catalogues". Monthly Notices of the Royal Astronomical Society 487, n. 2 (16 maggio 2019): 2578–93. http://dx.doi.org/10.1093/mnras/stz1361.

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Abstract The centre determination of a galaxy cluster from an optical cluster finding algorithm can be offset from theoretical prescriptions or N-body definitions of its host halo centre. These offsets impact the recovered cluster statistics, affecting both richness measurements and the weak lensing shear profile around the clusters. This paper models the centring performance of the redMaPPer cluster finding algorithm using archival X-ray observations of redMaPPer-selected clusters. Assuming the X-ray emission peaks as the fiducial halo centres, and through analysing their offsets to the redMaPPer centres, we find that ${\sim } 75\pm 8 {{\ \rm per\ cent}}$ of the redMaPPer clusters are well centred and the mis-centred offset follows a Gamma distribution in normalized, projected distance. These mis-centring offsets cause a systematic underestimation of cluster richness relative to the well-centred clusters, for which we propose a descriptive model. Our results enable the DES Y1 cluster cosmology analysis by characterizing the necessary corrections to both the weak lensing and richness abundance functions of the DES Y1 redMaPPer cluster catalogue.

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RAVI, B. G., e S. RAMASAMY. "STATUS OF STUDY OF COLOUR CENTERS IN CALCIUM FLUORIDE". International Journal of Modern Physics B 06, n. 17 (10 settembre 1992): 2809–36. http://dx.doi.org/10.1142/s0217979292002255.

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A review is given on studies of different types of colour centres in calcium fluoride crystals. Production, analysis and application of some colour centres like F and F aggregate centres, M A centre, oxygen centre, colloidal centre, and photochromic centre are discussed. The results of ESR, ENDOR, Magnetic Circular Dichroism (MCD). Raman spectroscopy, positron annihilation spectroscopy are reviewed. Irradiation effects on the colourability of pure and doped calcium fluoride crystals are also discussed.

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Herguedas, Emilio Olmos, Daniel Baloup, Xavier Kawa‐topor, Pierre Lançon e Isabelle Draelants. "Research centres‐centres de recherches". European Review of History: Revue européenne d'histoire 2, n. 1 (marzo 1995): 143–47. http://dx.doi.org/10.1080/13507489508568122.

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Jakovčić, Martina, e Ivica Rendulić. "Razvoj i funkcije kupovnih centara u Zadru". Geoadria 13, n. 1 (11 gennaio 2017): 97. http://dx.doi.org/10.15291/geoadria.569.

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The paper deals with the development of retail centres in Zadar. Types of retail centres are classified on the basis of the type of business outlets and functions. Four main types of retail centres are: shopping centres, hypermarkets, specialized hypermarkets and shopping centres – hypermarkets. Typology based on the location of centres is also developed. Functions of retail centres are analyzed based on the results gathered by a survey conducted in two retail centres, namely City Galleria – Trgovinski centar Relja and Mercator centre.

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Schaffner, Sabina. "The language centre as a laboratory for innovation". Language Learning in Higher Education 10, n. 2 (1 dicembre 2020): 317–25. http://dx.doi.org/10.1515/cercles-2020-2022.

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Abstract This paper discusses the potential of language centres in higher education as laboratories for innovation. Despite their hybrid character as central service providers that are also defined by their teaching, their positioning at the academic periphery, and the lack of a mandate to do academic research, language centres still have an obligation to conduct research as a means of promoting innovation. The design-based research (DBR) approach in learning and teaching, in which teaching stakeholders examine learning processes in real situation, offers a suitable opportunity for language centres to overcome the restrictions placed upon them. DBR can be done using existing resources and the innovation potential of a language centre’s teaching staff. The leadership and management of the language centre must be made responsible for providing and/or enabling the necessary structural, material, and cultural conditions for such research. This paper discusses the DBR approach at language centres in higher education and its impact on leadership. It then gives two examples of the successful implementation of DBR at the Language Center of UZH and ETH Zurich.

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Più fonti

Tesi sul tema "Centres"

Reppling, Simon, e Tobias Tillander. "Optimizing Shopping Centres – A Case Study of Farsta Centrum". Thesis, KTH, Fastigheter och byggande, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-191306.

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The purpose of this essay is to examine the possibilities for Farsta Centrum so they can increase their visitor count to avoid losing customers in favor of online shopping. It is investigated through several hypotheses that were formed. To accomplish this, a case study which consists of two parts has been completed. Firstly, a literature review was the basis for the hypotheses that investigates previous work concerning the subject. Secondly a questionnaire has been designed based on a standard model with attitude statements and a 7- point Likert scale. The questionnaire was then handed out to consumers as well as employees with a managerial role in the stores at Farsta Centrum. After this the answers were reviewed and analyzed based on average values. The results show that multi-channel shopping is not yet fully integrated with online shopping at Farsta Centrum. However other hypotheses were confirmed, for example that customer loyalty is important and that customers will prefer self-scanning. Therefore, two ways are presented to increase the visitor count to the center based on the results of the report. Firstly to pressure the stores to maintain a virtual store and secondly to force them to use self-scanning where appropriate.
Uppsatsens syfte är att undersöka om och i så fall hur Farsta Centrum kan öka besöksfrekvensen för att undvika att kunderna istället handlar online. För att problemet ska kunna diskuteras har en fallstudie av centrumet utförts vilken består av två delar. Först har en litteraturstudie gjorts där tidigare forskningsrapporter och litteratur presenteras. Här ligger också grunden till hypotesformuleringarna. Del två är en enkätundersökning med attitydfrågor som ställts till konsumenter respektive butiksansvariga i Farsta Centrum. Konsumenterna har fått besvara frågor relaterade till bland annat handelsmönster, hur det digitala integreras i handeln eller självscanning. Frågorna är kopplade till hypoteserna och svaren har utvärderats med medelvärden. Skalan som användes var en 7-gradig Likertskala. I resultatet framgår att Farsta Centrum inte är i framkant av den digitala handeln än. Hemsidor och telefoner är inte det viktigaste för konsumenterna och därför behöver inga anpassningar utföras än. Dock framgår till exempel att köptrohet är viktigt såväl som att självscanning är attraktivt. Det finns därför två sätt för Farsta Centrum att förvalta på ett bättre sätt för att öka besöksfrekvensen till centrumet utifrån rapportens resultat. De kan sätta mer press på butikerna att också tillhandahålla en virtuell butik samt forcera butiker att använda sig av självscanning där det är möjligt och passande.

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Le, Thoa Kim Thi. "Identifying town centres : public participation and town centre indicator combinations". Thesis, University of Nottingham, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.518734.

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Guénolé, Thomas. "Les centres en France : idéologie et incarnations contemporaines du centre". Paris, Institut d'études politiques, 2013. http://spire.sciences-po.fr/hdl:/2441/7o52iohb7k6srk09n8lg2cgrj.

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Dans un premier temps, cette thèse démontre l'existence d'une pensée politique spécifique du centre sur le temps long de l'histoire des idées, d'Aristote à Valéry Giscard d'Estaing. Elle établit dans ce but, pour chaque grande époque de l'histoire des idées, un syndoxe (du grec « pensée commune ») des penseurs ayant transposé la vertu de mesure dans la pensée politique. Elle en déduit un paradigme de la pensée politique du centre, et établit que cette pensée politique constitue une idéologie. Dans un deuxième temps, cette thèse démontre que l'électorat contemporain du centre (1999-2012) se reconnaît dans cette idéologie. Elle déduit en outre des préférences partisanes et personnelles de cet électorat l'existence de quatre familles du centre : le centre-droit, le centre-gauche, le centre-vert, et l'extrême centre. Elle identifie par ailleurs les personnalités et partis ayant incarné ces familles du centre de 1999 à 2012. Dans un troisième temps, cette thèse identifie les quatre familles du centre de la Révolution française à nos jours. Elle démontre par ailleurs, en utilisant des instruments de la science économique, que le financement des partis politiques est en concurrence ouverte et que la répartition des sièges à l'Assemblée nationale est en duopole : elle en déduit un modèle explicatif et prédictif des choix tactiques des partis, le modèle GRADD, qui explique l'éclatement du centre en quatre familles par leurs divergences de préférence d'alliances dans le duopole. Des entretiens avec des personnalités politiques emblématiques permettent en outre de valider les conclusions de la thèse
First, we prove the existence of a specific centrist political thought that goes from Aristotle to French centrist President Valery Giscard d'Estaing. To do so, considering each great age of political thought, we build a syndox (Ancient greek, « common thought ») of thinkers who stood for the virtue of moderation on the field of political thought. Thus we can identify a paradigm of centrist political thought. We then prove this paradigm is an ideology. Secund, we prove contemporary centrist voters (1999-2012) approve this ideology. We also deduct from their preferences among political parties and famous politicians that there are four families embodying Centre: centre-right, centre-left, green-centre, extreme-centre. We also identify parties and politicians that embodied these four families from 1999 to 2012. Third, we identify these four families from French Revolution to nowadays. We also prove, thanks to tools coming from economic science, that financing of political parties is a competitive market, whereas access to seats at National Assembly is a duopoly. We then build a model that allows us to explain and predict tactical choices made by parties: the « GRADD model. » It explains that centre is divided into four families because of divergent tactical preferences when considering both sides of the duopoly. Interviews with major politicians also make it possible to confirm our conclusions

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Madzingaidzo, Tawanda. "Inclusive urban centres". Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/23039.

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This dissertation is about addressing the need to make township centres a more socially and economically inclusive space for the majority of the inhabitants. It is about transforming the current status of a township from a dormitory or residential zone that simply repels its inhabitants to look for a sense of wellbeing and livelihood elsewhere to a township with an active centre that retains its people through promoting and supporting context specific socio-economic opportunities of the place It has become evident in many South African townships that there is an entrepreneurial activity that supports the livelihood of people within the settlements yet this activity is largely unsupported in legislation and in built infrastructure. The entrepreneurial activity is mainly found in the informal and formal small scale, medium and micro enterprises (SMMEs) and the neglect of this mainstream township economy, is reflected in its spatial exclusion from central business districts within cities around the country and within the township centres themselves. The Khayelitsha Business District is a township urban centre that finds its SMME economy operating on the centre's periphery while large scale enterprises, coming from outside the township dominate the built half of the business district. It is precisely this lack of representation of the formal and informal small scale, medium and micro enterprises within the Khayelitsha Business District that this dissertation seeks to address and provide a suitable architectural and urban intervention. It seems intuitive that through infrastructural interventions, that promote active social and economic participation of the majority of the population, can one seek to create spaces of socio-economic inclusion. Appropriate urban planning strategies, such as those suggested by professors David Dewar and Fabio Todeschini in their book "Urban Management and Economic Integration", and architectural examples, such as the ancient Greek Agora, will be analysed and used to equip me in imagining an inclusive vision for the further urban development of the remaining half of the business district and in designing a building that celebrates the aspirations and needs of the SMME economy. It is my hope that such an urban scheme and building will contribute positively to the ideal of an inclusive urban centre.

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Ramtohul, Priya. "L'émergence des centres offshore". Montpellier 1, 2002. http://www.theses.fr/2002MON10046.

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Quels sont les facteurs expliquant l'émergence des centres offshore ? Quelles sont les caractéristiques des centres offshore et pourquoi ces centres se développent-ils principalement dans des micro-états ? La création d'un centre offshore contribue-t-elle au développement de ces micro-états ? Notre thèse se propose de répondre à ces interrogations. La première partie explore les facteurs favorables à l'apparition des centres offshore à partir des théories de la localisation industrielle et de la mobilité du capital. Nous présenterons dans une deuxième partie les caractéristiques générales des juridictions offshore et faisons une distinction entre centres offshore internationaux, régionaux et de domiciliation. Dans une troisième partie, nous évaluons l'impact des activités offshore sur l'économie des micro-états à travers une approche en données de panel et analysons l'avenir des centres financiers offshore dans le cadre de la convergence progressive des conditions onshore et offshore.

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Toon, Richard John. "Science centres and legitimacy". Thesis, University of Leicester, 2003. http://hdl.handle.net/2381/31146.

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This thesis is a theoretically informed critical examination of the dual-legitimating role of science centres in contemporary North America through a case study of the Arizona Science Center (ASC), Phoenix, Arizona. By dual-legitimacy is meant the process by which an institution legitimates both the messages it delivers and its own authority to do so. The science centre is first distinguished from laboratory science practice, its non- science educational role emphasised, and its social role contrasted with that of the public understanding of science movement. The basic concept of legitimacy as an organising principle is argued for based on the thought of Ernest Gellner. The methodological issues of a single case study are considered in terms of generalisation and objectivity. An approach is advocated that is both multi-methodic and reflexive. A history of the science centre movement is provided that sees the science centre as a distinctive museum type, developing from a broad range of influences over the last three hundred years. The emergence of science centres in the late 1960s is related to social and political issues of the Cold War and an examination is given of the social significance of interactivity. This story provides the context for the development of ASC in the 1980s. This leads to the opening of a new science centre in Phoenix in 1997 and the meaning of its new building and the destination experience it offers are considered in terms of local legitimation among a variety of other institutions. An overview of the national science centre movement is provided and ASC is taken as a typical centre. The way ASC legitimates itself to potential visitors is examined in terms of the characteristics of its visitors and the messages it places in the media to attract them. A detailed examination is provided of the nature and meaning of ASC's offerings in art, exhibits, planetarium shows, giant-screen films, and demonstrations. It is argued that ASC offers different models of science and that much of its message is carried through being embodied by its visitors rather than cognitively understood by them. The result is that the science centre experience is a mixture of many elements with many aims, even though it carries what appears to be an ahistorical, asocial, apolitical message about science. An examination of some of the resulting tensions is given together with consideration of whether the embodied science of science centres ultimately achieves its goals.

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Barnes, Nina. "The retention factors of call centre agents at a financial institution in the Western Cape". Thesis, University of the Western Cape, 2013. http://hdl.handle.net/11394/4566.

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Magister Commercii (Industrial Psychology) - MCom(IPS)
The aim of the study was to identify the retention variables highlighted as most important by call centre agents at a financial institution in the Western Cape. In addition, to assess which of the independent variables they place more importance on; and to determine whether differences exist between the retention variables highlighted as most important by the respective age and gender groups.

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Barnes, Alison Kate School of Industrial Relations &amp Organisational Behaviour UNSW. "'The centre cannot hold': resistance, accommodation and control in three Australian call centres". Awarded by:University of New South Wales. School of Industrial Relations and Organisational Behaviour, 2005. http://handle.unsw.edu.au/1959.4/22026.

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Drawing upon case studies of three organisations operating six call centres in Australia, this thesis explores the manifestations and interplay of employee resistance and accommodation in response to five facets of employer control: electronic monitoring; repetitious work; emotional control; the built environment; and workplace flexibility. Accommodation refers to the ways workers protect themselves from and adapt to the pressures that make up their day-to-day experiences of work. Accommodation, unlike resistance, which implies opposition to control, may superficially resemble consent to control. I argue that resistance and accommodation are not polar opposites; rather they are both reflections of the conflict and tensions that lie at the heart of the employment relationship. At the study sites, employees utilised resistance and accommodation both separately and concurrently. An explanation of these seemingly contradictory responses and of the links among accommodation individual resistance and collective resistance lies in the concept of ???self???. In this thesis, ???self??? refers to workers??? perceptions of fairness, dignity and autonomy. I examine how these notions frame worker discontent and promote employee solidarity. ???Everyday resistance???, a concept first developed by Scott (1985) in relation to peasant struggles, is employed to highlight the existence of subterranean struggles in workplaces that otherwise appear to be harmonious. At the study sites, everyday resistance was a multi-faceted, widely employed strategy whose strength lay primarily in its immediate impact. There was, however, no necessary sequential development from accommodation, through everyday resistance to overt, formal forms of conflict. What was evident was that multiple responses to employer control could co-exist and inhibit or promote one another. But it was through organised collective resistance that more formalised gains were made and widely held grievances addressed. I suggest that, although everyday resistance may lay the groundwork for more formal struggles, one should not conclude that traditional collective resistance is ???genuine??? resistance and everyday resistance is simply a second-best prelude to it. Although conflict is always present, its intensity differs. If we are to understand the complexity of worker responses to managerial control, we need to expand the theoretical frameworks within which we analyse and interpret conflict.

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Redjem, Walid. "Spectroscopie optique des centres G dans le silicium : des ensembles au centre unique". Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS081.

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Le silicium est le semi-conducteur le plus utilisé dans l’industrie de la micro-électronique de puis les années 60. Mais l’utilisation du silicium pour emmètre de la lumière reste limité de part la nature indirect de son gap. Dans ce contexte, le centre G est le plus prometteur… Nous avons effectué des mesures de spectroscopie optique pour caractériser les propriétés de photoluminescence des centres G. Celui ci est crée par irradiation protons d’un échantillon de silicium enrichi carbone. Les principaux résultats sont les suivants : nous avons mesuré la dynamique de recombinaison des centres G (le temps de vie) qui est de 6 ns. On a mesuré la dynamique de l’état métastable des centres G qui a un temps de vie de 6 us. Puis, nous avons pour pu isoler un centre unique dans le silicium ; et nous avons montré que celui-ci émet des photons uniques
Silicon is the most used semiconducteur in the micro-electronic industrises since the 60’s. However the ability for the silicon to emit light is limited, because of its indirect band-gap. In this respect, the G-center is one of the most promizing. We performed optical spectroscopy to characterize the G-center potoluminescence properties. The latter is created from proton irradiation of carbon-enriched silicon sample. The main results are the following : We addressed the carrier dynamics which occuring at a 6 ns time scale. We revealed the metastable state liftetime of the G-center which is 6 us. And finally we isolated a single center that emit single photons

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Liao, Shuang Qing. "Dimensionnement des centres d’appels avec incertitude sur les paramètres d’arrivées". Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2011. http://www.theses.fr/2011ECAP0027/document.

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Au cours des dernières années, les centres d'appels ont été introduits avec succès par de nombreuses entreprises axées sur les services comme les banques et les compagnies d'assurance. Ils deviennent le principal point de contact avec les clients, et une partie intégrante de la majorité des sociétés. L'émergence à grande échelle des centres d'appels a créé une source féconde de problèmes de gestion des opérations. Dans cette thèse, nous nous concentrons sur la question de dimensionnement et définition des emplois du temps dans les centres d'appels. L'objectif de notre travail consiste à développer des analyses qualitatives ainsi que quantitatives, afin de déduire des recommandations utiles aux managers.Nous analysons quatre problèmes qui tiennent compte de l'incertitude sur les paramètres d'arrivée des appels. Le processus d'arrivée des appels est supposé suivre un processus non stationnaire et doublement stochastique avec un taux moyen d'arrivée aléatoire.Dans le premier modèle, nous considérons un centre d’appels avec une seule vacation possible. Les agents traitent en même temps des appels entrants et des tâches de back-office. Ceci permet d’avoir une certaine souplesse pour modifier en temps réel la capacité instantanée de traitement des appels entrants. Nous analysons l'impact de la flexibilité offerte par les charges de travail de back-office.Dans le deuxième modèle, nous considérons un centre d'appels avec plusieurs vacations possibles. Les agents traitent seulement des appels entrants. Dans ce modèle, le dimensionnement initialement établi peut être corrigé au cours de la journée de travail. Nous proposons une approche de programmation stochastique en deux étapes et une approche de programmation réglable robuste pour résoudre le problème d’optimisation. En particulier, nous analysons et montrons l'avantage supplémentaire d'utiliser le réglage dynamique sur les coûts de dimensionnement du centre d’appels. Dans le troisième modèle, nous considérons un autre type d'incertitude supplémentaire, qui est l'incertitude sur la distribution de probabilité d'un paramètre aléatoire. Nous proposons une approche combinant la programmation stochastique et la programmation distributionnellement robuste, et nous évaluons son rendement. Le dernier problème de dimensionnement d’un centre d'appels pour lequel le manager se propose de satisfaire un niveau de service global pour toute la journée au lieu d’un niveau de service objectif par période. Nous permettons également la mise à jour du dimensionnement au cours de la journée. Dans notre analyse, nous montrons en particulier les avantages de l'ajout de la flexibilité de mise à jour, et soulignons l'impact d'avoir une contrainte de service niveau globale sur les performances
In the past few years, call centers have been introduced with great success by many service-oriented companies such as banks and insurance companies. They become the main point of contact with the customers, and an integral part of the majority of corporations. The large-scale emergence of call centers has created a fertile source of management issues. In this thesis, we focus on the issue of staffing and scheduling of call centers. The objective of our work is to derive both qualitative and quantitative results for practical management.We specifically address the analysis of four problems that take into account the important feature of uncertainty in the call arrival parameters. The call arrival process is assumed to follow a doubly non-stationary stochastic process with a random mean arrival rate.In the first model, we consider a single-shift call center blending inbound calls and back-office jobs. By allowing the possibility of real-time changes in the capacity dealing with inbound calls, we analyze the impact of the flexibility offered by back-office jobs.In the second model, we consider a multi-shift call center with single type of inbound calls, in which the scheduling update is allowed. We propose a two-stage stochastic programming approach and an adjustable robust programming approach to efficiently solve the problem. We also analyze the benefits of using dynamic adjustment on scheduling.In the third model, we consider an additional type of uncertainty, namely the uncertainty on the probability distribution of a random parameter. We propose an approach combining stochastic programming and distributionally robust programming, and evaluate its performance.The last model deals with a call center optimization under a global service level constraint instead of period by period constraints. We again allow scheduling decisions to be updated during the middle of the day. We show the advantages of adding the update flexibility, and point out the impact of having a global service level constraint on performance

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Libri sul tema "Centres"

Ellington, Henry. Resources centres. (Dundee): CICED, 1987.

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Mauger, Patrick. Centres commerciaux. Paris: Editions du Moniteur, 1991.

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Wake, Ken. Shopping centres. Gateshead: Gateshead MBC Education Department in conjunction with Gateshead MetroCentre, 1989.

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Maas, Gideon, e Paul Jones, a cura di. Entrepreneurship Centres. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-47892-0.

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Great Britain. Parliament. House of Commons. Environment Committee. Shopping centres. London: Stationery Office, 1997.

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Council, Bedfordshire (England) Borough. Community centres. Bedford: Bedfordshire Borough Council, 1995.

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clubs, Northamptonshire association of youth. Welcome to the Frontier Centres Action Centres UK. [Northampton]: [Northamptonshire Association of Youth Clubs], 1990.

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Hall, Stanley. Rail centres: Manchester. Shepperton: Ian Allan, 1995.

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Leeds (England). Planning Department. Children's leisure centres. Leeds: Leeds City Council, 1997.

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Great Britain. Home Office. Research and Planning Unit. Probation day centres. London: H.M.S.O., 1988.

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Capitoli di libri sul tema "Centres"

Bouc, Serge. "Centres". In Green Functors and G-sets, 305–36. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/bfb0095834.

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Dixmier, Jacques. "Centres". In Graduate Studies in Mathematics, 131–68. Providence, Rhode Island: American Mathematical Society, 1996. http://dx.doi.org/10.1090/gsm/011/04.

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James, Paul. "Day Centres". In Working with Offenders, 118–33. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-17739-4_8.

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Walker, Gordon. "Profit Centres". In The Palgrave Encyclopedia of Strategic Management, 1–4. London: Palgrave Macmillan UK, 2016. http://dx.doi.org/10.1057/978-1-349-94848-2_676-1.

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Walker, Gordon. "Profit Centres". In The Palgrave Encyclopedia of Strategic Management, 1350–53. London: Palgrave Macmillan UK, 2018. http://dx.doi.org/10.1057/978-1-137-00772-8_676.

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Baggini, Angelo, e Franco Bua. "Data Centres". In Electrical Energy Efficiency, 357–70. Chichester, UK: John Wiley & Sons, Ltd, 2012. http://dx.doi.org/10.1002/9781119990048.ch12.

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Specht, Alison. "Synthesis Centres". In Terrestrial Ecosystem Research Infrastructures, 469–88. Boca Raton, FL : CRC Press, 2017.: CRC Press, 2017. http://dx.doi.org/10.1201/9781315368252-23.

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Bsoul, Labeeb Ahmed. "Translation Centres". In Translation Movement and Acculturation in the Medieval Islamic World, 49–73. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21703-7_3.

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Gilbert, O. L. "City Centres". In The Ecology of Urban Habitats, 165–82. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0821-5_10.

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Gilbert, O. L. "City Centres". In The Ecology of Urban Habitats, 165–82. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3068-4_10.

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Atti di convegni sul tema "Centres"

Campbell, Jennifer, e Michelle Craig. "Drop-In Help Centres". In WCCCE '18: Western Canadian Conference on Computing Education. New York, NY, USA: ACM, 2018. http://dx.doi.org/10.1145/3209635.3209642.

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Dittrich, I. "EMC at studio centres". In IEE Half-Day Colloquium on EMC in Broadcasting. IEE, 1996. http://dx.doi.org/10.1049/ic:19960464.

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Schmitt, Mathieu, Fabian Diet e Nicolae Mihalache. "Yamcs for lean Commercial Control Centres: The ICE Cubes Control Centre". In 15th International Conference on Space Operations. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2018. http://dx.doi.org/10.2514/6.2018-2682.

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Mateos-Ronco, Alicia, e José Manuel Hernández-Mezquida. "QUALITY MANAGEMENT IN PUBLIC EDUCATION CENTRES: THE CASE OF PUBLIC VOCATIONAL TRAINING CENTRES". In International Technology, Education and Development Conference. IATED, 2016. http://dx.doi.org/10.21125/iceri.2016.0851.

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Fakhim, Babak, Srinarayana Nagarathinam, Simon Wong, Masud Behnia e Steve Armfield. "Addressing Thermal Challenges in Design of Data Centres". In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-24690.

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Aggregation of small networking hardware has led to an ever increasing power density in data centres. The energy consumption of IT systems is continuing to rise substantially owing to the demands of electronic information and storage requirements. Energy consumption of data centres can be severely and unnecessarily high due to inadequate localised cooling and densely packed rack layouts. However, as heat dissipation in data centres rises by orders of magnitude, inefficiencies such as air recirculation causing hot spots, leading to flow short-circuiting will have a significant impact on the thermal manageability and energy efficiency of the cooling infrastructure. Therefore, the thermal management of high-powered electronic components is a significant challenge for cooling of data centres. In this project, an operational data centre has been studied. Field measurements of temperature have been performed. Numerical analysis of flow and temperature fields is conducted in order to evaluate the thermal behaviour of the data centre. A number of undesirable hot spots have been identified. To rectify the problem, a few practical design solutions to improve the cooling effectiveness have been proposed and examined to ensure a reduced air-conditioning power requirement. Therefore, a better understanding of the cooling issues and the respective proposed solutions can lead to an improved design for future data centres.

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Laurens, Monica, e Martin Kales. "Moving Beyond Realtime Operations Centres". In International Petroleum Technology Conference. International Petroleum Technology Conference, 2014. http://dx.doi.org/10.2523/iptc-17583-ms.

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Štěpánková, Lenka. "Parameters of European Exhibition Centres". In 8th Annual Conference on Architecture and Urbanism. Brno: Fakulta architektury VUT v Brne, 2019. http://dx.doi.org/10.13164/phd.fa2019.11.

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Casadei, Matteo, e Andrea Omicini. "Situated tuple centres in ReSpecT". In the 2009 ACM symposium. New York, New York, USA: ACM Press, 2009. http://dx.doi.org/10.1145/1529282.1529586.

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Prieto, José Luis. "Industry 4.0 and metrology centres". In 18th International Congress of Metrology, a cura di Cosimi Corletto. Les Ulis, France: EDP Sciences, 2017. http://dx.doi.org/10.1051/metrology/201701001.

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Rapporti di organizzazioni sul tema "Centres"

Andersen, Lizzi. Plastic sorting at recycling centres. Nordic Council of Ministers, febbraio 2015. http://dx.doi.org/10.6027/tn2015-511.

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Andersen, Lizzi, Kenneth Sandberg, Per Lundqvist, Jens Thulin, Janus Kirkeby, Trine Lund Neidel e Asbjørn Weidling. Plastic sorting at recycling centres. Nordic Council of Ministers, febbraio 2015. http://dx.doi.org/10.6027/tn2015-518.

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NMR Publicering. Plastic at Recycling Centres, Background. Nordisk Ministerråd, maggio 2014. http://dx.doi.org/10.6027/na2014-912.

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NMR Publicering. Plastic Sorting at Recycling Centres, v.1. Nordisk Ministerråd, maggio 2014. http://dx.doi.org/10.6027/na2014-911.

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Otuka, Naohiko, e BORIS PRITYCHENKO. International Network of Nuclear Reaction Data Centres. Office of Scientific and Technical Information (OSTI), maggio 2021. http://dx.doi.org/10.2172/1807954.

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Erulkar, Annabel, Mags Beksinska e Queen Cebekhulu. An assessment of youth centres in South Africa. Population Council, 2001. http://dx.doi.org/10.31899/rh4.1215.

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Dörflinger, Aliette, e Eva Heckl. Begleitende Evaluierung der Impulsaktion 'Laura Bassi Centres of Expertise‘. KMU Forschung Austria, dicembre 2011. http://dx.doi.org/10.22163/fteval.2014.122.

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Buhmann, Martin D., e Amos Ron. Radial Base Functions: Lp-approximation Orders with Scattered Centres. Fort Belvoir, VA: Defense Technical Information Center, gennaio 1994. http://dx.doi.org/10.21236/ada274682.

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Heckl, Eva, Sabine Mayer, Aliette Dörflinger e Susanne Bührer. Begleitende Evaluierung der Impulsaktion "Laura Bassi Centres of Expertise": Erste Zwischenergebnisse. KMU Forschung Austria, gennaio 2011. http://dx.doi.org/10.22163/fteval.2011.136.

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Dörflinger, Aliette, e Eva Heckl. Fortschrittsbericht 2012: Begleitende Evaluierung der Impulsaktion „Laura Bassi Centres of Expertise“. KMU Forschung Austria, febbraio 2013. http://dx.doi.org/10.22163/fteval.2013.78.

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