959 resultados para The Impossible Is Possible


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Case-based reasoning (CBR) is a unique tool for the evaluation of possible failure of firms (EOPFOF) for its eases of interpretation and implementation. Ensemble computing, a variation of group decision in society, provides a potential means of improving predictive performance of CBR-based EOPFOF. This research aims to integrate bagging and proportion case-basing with CBR to generate a method of proportion bagging CBR for EOPFOF. Diverse multiple case bases are first produced by multiple case-basing, in which a volume parameter is introduced to control the size of each case base. Then, the classic case retrieval algorithm is implemented to generate diverse member CBR predictors. Majority voting, the most frequently used mechanism in ensemble computing, is finally used to aggregate outputs of member CBR predictors in order to produce final prediction of the CBR ensemble. In an empirical experiment, we statistically validated the results of the CBR ensemble from multiple case bases by comparing them with those of multivariate discriminant analysis, logistic regression, classic CBR, the best member CBR predictor and bagging CBR ensemble. The results from Chinese EOPFOF prior to 3 years indicate that the new CBR ensemble, which significantly improved CBRs predictive ability, outperformed all the comparative methods.

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RNase mitochondrial RNA processing enzyme (MRP) is a nucleolar ribonucleoprotein particle that participates in 5.8S ribosomal RNA maturation in eukaryotes. This enzyme shares a polypeptide and an RNA structural motif with ribonuclease P (RNase P), a nuclear endoribonuclease originally described in the nucleus that processes RNA transcripts to generate their mature 5' termini. Both enzymes are also located in mitochondria. This report further characterizes the relationship between RNase MRP and RNase P. Antisense affinity selection with biotinylated 2'-O-methyl oligoribonucleotides and glycerol gradient fractionation experiments demonstrated that small subpopulations of RNase MRP and RNase P associate with each other in vivo in macromolecular complex, possibly 60-80S preribosomes. This latter notion was supported by fluorescence in situ hybridization experiments with antisense oligonucleotides that localized that RNA components of RNase MRP and RNase P to the nucleolus and to discrete cytoplasmic structures. These findings suggest that small subpopulations of RNase MRP and RNase P are physically associated, and that both may function in ribosomal RNA maturation or ribosome assembly.

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About ten days ago Alexis Tsipras, the Greek prime minister, announced that there was going to be a referendum, and thus terminated the negotiations on a new rescue package unilaterally. Since then the euro area has been plunged into a wholly unprecedented political crisis. Whether or not Greece can re-main in the monetary union is more uncertain than ever, and decisions that can give a new twist to the political and financial situation are being made almost every day. The Greek banks have been closed for over a week. The economic data are deteriorating rapidly. And yet a solution is nowhere to be seen. The No vote in the Greek referendum has not exactly improved the chances of reaching an agree-ment. For the time being the positions seem to have become uncompromising. At the summit of the heads of state and government on 7 July the Greek government was given five days and a “final deadline” in order to come up with viable proposals for reform. Thus the next few days are of crucial im-portance. At the weekend the heads of state and government of all 28 EU member states are going to meet in order to decide the future of Greece. This flashlight europe provides an overview of the events of the last few days, outlines possible scenarios for what may happen in the near future, and identifies factors which may exert an influence in the short term. We are not trying to give an exact forecast or to formulate action recommendations. But we are trying to shed some light on a confusing situation by identifying important patterns and some of the salient factors.

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Az európai gazdasági integráció folyamata olyan kényszerhelyzetekben formálódott a múltban, amelyek a közgazdaságtudományban jól ismert lehetetlen háromság alapján is leírhatók. Az Európai Monetáris Rendszer a rögzített árfolyam-mechanizmusra és önálló jegybanki politikára épített, korlátozva a tőkemozgásokat. A Gazdasági és Monetáris Unió ugyanakkor a tőke szabad áramlásával és az árfolyamok visszavonhatatlan rögzítésével felszámolta a tagállami szintű jegybanki autonómiát. Az euróövezet működése egyszersmind arra a háromszoros tagadásra épül(t), hogy 1. nem lehetséges az euróövezetből való kilépés, 2. nem engedélyezett a kimentés és 3. nem kerülhet sor államcsődre. A 2008-ban Európát is elérő pénzügyi és gazdasági válság azonban elemi erővel mutatott rá e hármas tiltás tarthatatlanságára. A gazdasági kormányzás körül kibontakozott viták így jól közelíthetők a három tiltó szabály egyidejű érvényesülése lehetetlenségének bemutatásával, számba véve az egyes opciók költségeit és lehetséges hasznait. / === / The process of economic integration in the EU has been shaped by the well-known theorem of the impossible trinity. Accordingly, the European Monetary System was built upon a mix of a fixed exchange-rate regime and an autonomous monetary policy, thereby constraining capital mobility. In launching the EMU project, the EU countries decided to fix national currencies irrevocably and maintain full capital mobility, in exchange for delegating their monetary policy upwards to a supranational level. The introduction of the Euro zone, however, has simultaneously meant denial of the following three elements: (1) exit, (2) bail-out, and (3) default. Nevertheless, the 2008–9 financial and economic crisis has demonstrated mercilessly that these three pillars are incompatible with each other. So the current debates on reshaping economic governance in the EU can be modelled by introducing theimpossible trinity of denial”, concentrating on the benefits and the costs of each option.

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Soon after joining the Canadian Confederation in 1867, the province of Quebec adopted the phrase « Je me souviens » ("As I recall") as its "national" motto, although many Québécois do not remember today what they were supposed to memorize, as collective subject, when their government voted this motion. My thesis is that contrary to other countries which have a strong sense of history based on a secular tradition, this process was more complicated in Quebec — as if a collective memory loss lied at the heart of it's history. Through a rereading of Hubert Aquin's cult novel, Trou de mémoire (in its English translation Blackout), first published in 1968, I try to illustrate this paradox and to emphasize the heuristic functions of memory blanks, gaps and lapses in certain postmodern narratives, after the historical breakdown of "the great narratives" (Lyotard). In this perspective, the example of Quebec, through the voice of one of its more gifted yet controversial novelist, can be seen as emblematic of what happens when the mnemonic impossibility of rewriting history opens up new possibilities for writing fiction.

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Soon after joining the Canadian Confederation in 1867, the province of Quebec adopted the phrase « Je me souviens » ("As I recall") as its "national" motto, although many Québécois do not remember today what they were supposed to memorize, as collective subject, when their government voted this motion. My thesis is that contrary to other countries which have a strong sense of history based on a secular tradition, this process was more complicated in Quebec — as if a collective memory loss lied at the heart of it's history. Through a rereading of Hubert Aquin's cult novel, Trou de mémoire (in its English translation Blackout), first published in 1968, I try to illustrate this paradox and to emphasize the heuristic functions of memory blanks, gaps and lapses in certain postmodern narratives, after the historical breakdown of "the great narratives" (Lyotard). In this perspective, the example of Quebec, through the voice of one of its more gifted yet controversial novelist, can be seen as emblematic of what happens when the mnemonic impossibility of rewriting history opens up new possibilities for writing fiction.

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Attracting and retaining quality teachers to rural and remote areas has been a challenge over the last decade. Many preservice teachers are reluctant to experience a rural and remote practicum and may not consider applying to teach in such areas when they graduate. Education departments and universities need to explore innovative ways that will encourage graduates to consider undertaking a teaching position in the bush. As a way forward, preservice teachers from a regional campus of a Queensland University were invited to participate in a six-day rural experience entitled ‘Over the Hill’ that included being billeted with local families, participating in community activities and observing and teaching in classrooms. Fifteen preservice teachers were accompanied by two university academics who returned to work in a classroom as teacher for their own rural and remote professional experience. The aim of this qualitative study was to explore and describe the perceptions of a rural and remote teaching experience from the perspectives of the preservice teachers, the accompanying academics and the school staff hosting the program. Data were collected from the preservice teachers and accompanying academics in the form of written reflections while fourteen school staff completed a related questionnaire. The results indicated that a six-day rural and remote teaching program can provide professional benefits for all involved, preservice teachers, accompanying academics and the school staff hosting the program. Indeed, this study indicates that short experiences such as “Over the Hill” not only assist preservice teachers to make informed decisions about teaching in rural and remote areas but can provide professional benefits for accompanying academics and the schools.

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With the rise of ubiquitous computing in recent years, concepts of spatiality have become a significant topic of discussion in design and development of multimedia systems. This article investigates spatial practices at the intersection of youth, technology, and urban space in Seoul, and examines what the author calls ‘transyouth’: in the South Korean context, these people are between the ages of 18 and 24, situated on the delicate border between digital natives and immigrants in Prensky’s (2001) terms. In the first section, the article sets out the technosocial environment of contemporary Seoul. This is followed by a discussion of social networking processes derived from semi-structured interviews conducted in 2007-8 with Seoul transyouth about their ‘lived experiences of the city.’ Interviewees reported how they interact to play, work, and live with and within the city’s unique environment. The article develops a theme of how technosocial convergence (re)creates urban environments and argues for a need to consider such user-driven spatial recreation in designing cities as (ubiquitous) urban networks in recognition of its changing technosocial contours of connections. This is explored in three spaces of different scales: Cyworld as an online social networking space; cocoon housing – a form of individual residential space which is growing rapidly in many Korean cities – as a private living space; and u-City (ubiquitous City) as the future macro-space of Seoul.

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Cyber bullying – or bullying through the use of technology – is a growing phenomenon which is currently most commonly experienced by young people and the consequences manifested in schools. Cyber bullying shares many of the same attributes as face-to-face bullying such as a power imbalance and a sense of helplessness on the part of the target. Not surprisingly, targets of face-to-face bullying are increasingly turning to the law, and it is likely that targets of cyber bullying may also do so in an appropriate case. This article examines the various criminal, civil and vilification laws that may apply to cases of cyber bullying and assesses the likely effectiveness of these laws as a means of redressing that power imbalance between perpetrator and target.

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Human error, its causes and consequences, and the ways in which it can be prevented, remain of great interest to road safety practitioners. This paper presents the findings derived from an on-road study of driver errors in which 25 participants drove a pre-determined route using MUARC's On-Road Test Vehicle (ORTeV). In-vehicle observers recorded the different errors made, and a range of other data was collected, including driver verbal protocols, forward, cockpit and driver video, and vehicle data (speed, braking, steering wheel angle, lane tracking etc). Participants also completed a post trial cognitive task analysis interview. The drivers tested made a range of different errors, with speeding violations, both intentional and unintentional, being the most common. Further more detailed analysis of a sub-set of specific error types indicates that driver errors have various causes, including failures in the wider road 'system' such as poor roadway design, infrastructure failures and unclear road rules. In closing, a range of potential error prevention strategies, including intelligent speed adaptation and road infrastructure design, are discussed.

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My research is located in an abiding concern with the nation and takes a special interest in the predictions and expectations surrounding the impact of the Internet on how this institution is lived. It is my hypothesis that the effects of the Internet are not limited only to those who are users but extends even to those who may never have witnessed its workings. The research question I began with: how is the imagining of the nation affected by our understandings and expectations of the Internet, developed through the writing of the first three chapters to: how is the living of the nation affected by the Internet’s inflection on lived time and lived space?

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Background: The enthesis of the plantar fascia is thought to play an important role in stress dissipation. However, the potential link between entheseal thickening characteristic of enthesopathy and the stress-dissipating properties of the intervening plantar fat pad have not been investigated. Purpose: This study was conducted to identify whether plantar fat pad mechanics explain variance in the thickness of the fascial enthesis in individuals with and without plantar enthesopathy. Study Design: Case-control study; Level of evidence, 3. Methods: The study population consisted of 9 patients with unilateral plantar enthesopathy and 9 asymptomatic, individually matched controls. The thickness of the enthesis of the symptomatic, asymptomatic, and a matched control limb was acquired using high-resolution ultrasound. The compressive strain of the plantar fat pad during walking was estimated from dynamic lateral radiographs acquired with a multifunction fluoroscopy unit. Peak compressive stress was simultaneously acquired via a pressure platform. Principal viscoelastic parameters were estimated from subsequent stress-strain curves. Results: The symptomatic fascial enthesis (6.7 ± 2.0 mm) was significantly thicker than the asymptomatic enthesis (4.2 ± 0.4 mm), which in turn was thicker than the enthesis (3.3 ± 0.4 mm) of control limbs (P < .05). There was no significant difference in the mean thickness, peak stress, peak strain, or secant modulus of the plantar fat pad between limbs. However, the energy dissipated by the fat pad during loading and unloading was significantly lower in the symptomatic limb (0.55 ± 0.17) when compared with asymptomatic (0.69 ± 0.13) and control (0.70 ± 0.09) limbs (P < .05). The sonographic thickness of the enthesis was correlated with the energy dissipation ratio of the plantar fat pad (r = .72, P < .05), but only in the symptomatic limb. Conclusion: The energy-dissipating properties of the plantar fat pad are associated with the sonograpic appearance of the enthesis in symptomatic limbs, providing a previously unidentified link between the mechanical behavior of the plantar fat pad and enthesopathy.