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Is there a chance to find heavy neutrinos in future linear colliders?  [PDF]
J. Gluza,M. Zralek
Physics , 1995, DOI: 10.1016/0370-2693(96)00074-3
Abstract: We examine two processes, the neutrino production process e^+e^- ---> N\nu and the inverse neutrinoless double-beta decay process e^-e^- --->W^-W^- as possible places for discovering heavy neutrinos in future lepton linear colliders. The heavy neutrino parameters are bound from existing experimental data. We use only one important theoretical input, the lack of a Higgs triplet. As a consequence the neutrinos must have different CP parities. In such models the existing experimental bounds for mixing parameters still give a chance that heavy neutrinos can be observed in future e^+e^- and e^-e^- colliders.
Advance Reservation of Resources for Task Execution in Grid Environments  [PDF]
Eliza Moise,Diana Moise,Florin Pop,Valentin Cristea
Computer Science , 2011,
Abstract: The paper proposes a solution for the Grid scheduling problem, addressing in particular the requirement of high performance an efficient algorithm must fulfill. Advance Reservation engages a distributed, dynamic, fault-tolerant and efficient strategy which reserves resources for future task execution. The paper presents the main features of the strategy, the functioning mechanism the strategy is based on and the methods used for evaluating the algorithm.
On design studies for the future 50 GeV arrays of imaging air Cherenkov telescopes  [PDF]
Alexander K. Konopelko
Physics , 1999, DOI: 10.1016/S0927-6505(99)00062-6
Abstract: Arrays of imaging air Cherenkov telescopes (IACTs) like VERITAS, HESS have been recently proposed as the instruments of the next generation for ground based very high energy gamma-ray astronomy invading into 50-100 GeV energy range. Here we present results of design studies for the future IACT arrays which have been performed by means of Monte Carlo simulations. We studied different trigger strategies, abilities of cosmic ray rejection for arrays of 4 and 16 telescopes with 10 m reflectors, equipped with cameras comprising 271 and 721 pixels of 0.25 and 0.15 degree, respectively. The comparative analysis of the performance of such telescope arrays has been done for both camera options, providing almost the same field of view of 4.3 degree. An important issue is the choice of the optimum spacing between the telescopes in such an array. In order to maximize the signal-to-noise ratio in observations at the small zenith angles of 20 degree as well as at large zenith angles of 60 degree, different arrangements of IACT array have been examined. Finally, we present a major recommendations regarding the optimum configuration.
What Do We Know about Individuals Who Are Assessed as Being at Moderate Risk for Future Fracture in Canada?  [PDF]
Joanna E. M. Sale, Ravi Jain, Kosalan Akilan, Kevin Senior, Dorcas Beaton, Earl Bogoch, Gilles Boire, Marie-Claude Beaulieu, David Lightfoot, Larry Funnell
Health (Health) , 2015, DOI: 10.4236/health.2015.75061
Abstract: Objective: We examined what was known about individuals in Canada who were assessed as being at moderate risk for future fracture. Methods: A scoping review was conducted. Eligible articles were Canadian studies published from 2010 onwards reporting on primary data that included patients at moderate risk for future fracture. We limited the search to Canada as fracture risk categorization is unique to each country. Studies were identified by searching relevant databases. Two reviewers independently reviewed titles and abstracts to determine each study’s eligibility. General information about each study, demographic information about the moderate risk groups (including tool used to determine moderate risk (Fracture Risk Assessment Tool (FRAX), Canadian Association of Radiologists and Osteoporosis Canada (CAROC)), and outcomes (number of patients: recommended treatment, prescribed treatment, initiating treatment, persisting with treatment after six months, who refractured, who died) were documented. Results: We identified 1193 papers which were further screened for eligibility. Of the 1193 identified, 7 were eligible for the review but only 4 articles contained demographic or outcome data on moderate risk patients. In one study, 1.8% of moderate risk patients died over a mean 5.3 years of observation and in three studies, the risk of fracture was 5.9% over a median of 3 years of follow-up, 8.3% over a mean of 5.4 years, and 14.7% over 10 years of follow-up. Conclusion: There is a wide knowledge gap in the literature concerning individuals who are assessed as moderate risk for future fracture in Canada.
To know how to find. To find without knowing: Wisdom in the Gospel of Thomas  [cached]
J. Liebenberg
HTS Theological Studies/Teologiese Studies , 2009, DOI: 10.4102/hts.v59i1.646
Abstract: At the SBL meeting in Orlando in 1998, the contemporary metaphor theory practised by cognitive linguists such as Lakoff, Johnson and Turner, was used to identify some of the basic metaphors appearing in Thomas 1-5, which the author believes to be important for coming to terms with the metaphoricity of many of the sayings in the Gospel. The ensuing discussion of Thomas 08 and Thomas 109 is yet another attempt to show how the insights of cognitive linguistics, which have for the most part been ignored by contemporary commentators on the parables and aphorisms of Jesus, can perhaps provide us with fresh insights into this part of the sayings of the Jesus tradition.
To know or not to know: archiving and the under-appreciated historical value of data
David Covarrubias, Maurice Van Emburgh, Hassan R Naqvi, Christian Schmidt, Shawn Mathur
Molecular Cancer , 2008, DOI: 10.1186/1476-4598-7-18
Abstract: What is progress? In a plain way, progress is an advance over an existing level. To obtain a quantifiable resolution, it is necessary to have references and contexts. References and contexts may comprise a fair number of data and references themselves. Where to start and what to consider? A comprehensive answer, consequently, requires an infinite amount of data and corresponding contexts. Ergo, each datum and context must be verifiable referenced and analyzed. Inevitably, the definition of progress requires a well-organized archive. How much effort is directed towards archiving? Furthermore, are enough resources available for maintaining data and documents? How can data that is stored in defunct formats and only accessible by obsolete programs be viably maintained for historical research? Is there sufficient support by and benefit for a society associated with such an activity?Reversing the point of view, is the stored information appreciated and accessible? Taking it further, do we know what we have lost over time? Can we afford to selectively archive what we are able to preserve for future generations? Things we may not appreciate at this moment, take as given or consider as not suitable for in-depth investigation, are nevertheless records that could be missed at some time in the future. Answering the basic question from the preceding paragraph, there can never be enough effort in preserving information.It is now assumed, simply for the sake of the argument, that there is no conscious selection of contents of an universal archive; access to this archive is arbitrarily set to unrestricted. Given that the archive contains a large number of data, one could mine this treasure for avoidance of costly errors and/or synthesize existing hypotheses to benefit existing approaches. In essence, are cultural/historical/scientific lessons the true currency of an interconnected society?Society as a whole has to decide how much resources are allocated towards preserving existing
Measurements of the CMB: Current Status and Future Prospects  [PDF]
Lyman Page
Physics , 2002,
Abstract: The study of the Cosmic Microwave Background (CMB) is a rapidly maturing field. In remarkable advances in the past two years, experiments have begun to probe the detailed structure of the CMB angular spectrum thereby providing insight into the contents of the universe. We briefly review the BOOMERanG and DASI results with an emphasis on what the data tell us with only minimal cosmological assumptions. After a short discussion about a grand future for CMB physics, key features of the MAP satellite, now in orbit, are described. We also discuss how we anticipate MAP will advance the field beyond what we know now.
Can future systemic financial risks be quantified?: ergodic vs nonergodic stochastic processes
Davidson, Paul;
Revista de Economia Política , 2009, DOI: 10.1590/S0101-31572009000400001
Abstract: different axioms underlie efficient market theory and keynes's liquidity preference theory. efficient market theory assumes the ergodic axiom. consequently, today's decision makers can calculate with actuarial precision the future value of all possible outcomes resulting from today's decisions. since in an efficient market world decision makers "know" their intertemporal budget constraints, decision makers never default on a loan, i.e., systemic defaults, insolvencies, and bankruptcies are impossible. keynes liquidity preference theory rejects the ergodic axiom. the future is ontologically uncertain. accordingly systemic defaults and insolvencies can occur but can never be predicted in advance.
Fixed Advance Priority based Bandwidth Utilization in TDM EPON
Muhammad Bilal
International Journal of Computer Science Issues , 2011,
Abstract: PON technology can be used to avoid the placement of electronics in the field by using passive optical filters (splitters) to distribute optical circuits to individual customers. They reduced the amount of fiber and local exchange and field equipment. With the development of services offered by the Internet, the last mile bottleneck problems persist to increase step by step. Many algorithms were developed for making TDM EPON efficient similar to Scheduling, Priority swapping etc. These all algorithms have problems like starvation, QoS, latency and channel under- utilization. We focused the efficient bandwidth utilization in TDM EPON by managing time slots within ONUs and reducing latency and increasing quality of service. Our Fixed Advance Priority based Bandwidth Algorithm is an intra-ONU bandwidth allocation algorithm, which is used to enhance the network performance by evaluating the parameters like channel underutilization, delay and Quality of Service. The issues which are lacking in the already made algorithms are being resolved with our proposed solution. The main problem time slots management issue solved in FAPB algorithm.
The Role of Subscription-Based Patrol and Restitution in the Future of Liberty
Gil Guillory,Patrick C. Tinsley
Libertarian Papers , 2009,
Abstract: Market anarchists are often keen to know how we might rid ourselves of the twin evils institutionalized in the state: taxation and monopoly. A possible future history for North America is suggested, focusing upon the implications of the establishment of a subscription-based patrol and restitution business sector. We favor Rothbard over Higgs regarding crises and liberty. We favor Barnett over Rothbard regarding vertical integration of security. We examine derived demand for adjudication, mediation and related goods; and we advance the thesis that private adjudication will tend to libertarianly just decisions. We show how firms will actively build civil society, strengthening and coordinating Nisbettian intermediating institutions.
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