bluuebunny/crossref_metadata_2025_split huggingface dataset:
End‐to‐end QoS and global mobility management in an integrated satellite/terrestrial network
Authors: Conforto P. , Tocci C. , Schena V. , Secondiani L. , Blefari‐Melazzi N. , Chan P. M. L. , Delli Priscoli F. 
Published: January 2004

AbstractFor decades, the development of the Internet was driven by the purpose of providing applications to non‐mobile users. No specific Quality of Service (QoS) requirement is necessary, other than ensuring reliability in the end‐to‐end data transfers. As such, best effort service model was deemed more than appropriate to satisfy the users' needs. Nevertheless, the scenario has changed in the last few years. A new population of nomadic users, who requires access to Internet services regardless of their location and mode of transportation is growing, while new typologies of Internet applications are being continuously developed, in which best effort service level may no longer be adequate.The SUITED project has been devised to address the emerging issues generated by this new and challenging scenario. SUITED aims at contributing towards the design and deployment of the Global Mobile Broadband System (GMBS), a unique satellite/terrestrial infrastructure, which will ensure that nomadic users have access to Internet services with a negotiated QoS. An overview of the main results achieved in the SUITED project is provided in this article. Some of the most innovative solutions developed by the SUITED team for the joint management of global mobility and end‐to‐end QoS support are presented. The SUITED demonstrator platform, which was developed to validate the system specifications, is also described. Finally, the results of the experimental measurement campaigns carried out with this platform are reported. Copyright © 2004 John Wiley & Sons, Ltd.
GAUSS satellite solution for location‐based services
Authors: Di Fazio Antonella , Mocci Gabriele , Rossini Eugenio , D'Angelo Giuseppe , Lorelli Andrea , Jarosh Andreas 
Published: January 2004

AbstractThe project was carried by an industrial Consortium, involving nine European companies, with proven experience and complementary skill in the fields of telecommunication, equipment manufacturing, communication and navigation system engineering, service provisioning. The GAUSS Team involves ARNI (Azienda Regionale per la Navigazione Interna, I), ASCOM (CH), ERICSSON Telecomunicazioni (I), GMV (E), TELEFONICA (E), THALES Navigation (F), TTI Norte (E), Space Engineering (I) and TELESPAZIO (I) as project co‐ordinator. The work allocation was in line with the companies market and technological prospects, in view of future developments taking benefits from the experience and know‐how acquired in the GAUSS project.GAUSS objective was to design and demonstrate the feasibility of a system providing high quality Location‐based services, from the integration of Satellite Navigation and Communications, within the contexts of GALILEO and the UMTS technology.The GAUSS solution addresses two classes of users profiles, belonging to info‐mobility and inter‐modality (road‐river) markets. It supports highly reliable, near real‐time two‐way communication between mobile users and service centre/provider.GAUSS developed a system, which integrates advanced communication and precise navigation, for providing reliable and effective location‐based services oriented to transport and mobility applications (freight and fleet management, road safety and info‐mobility, emergency assistance, dangerous goods transportation control, inter‐modal transport). The GAUSS system combines off‐the‐shelf and new developed technologies, using S‐UMTS 3GPP compliant point‐to‐point and broadcasting packet‐based communication and GNSS1‐EGNOS accurate positioning. It has an open architecture ready to operate with the future GALILEO and UMTS, and further exploitation scenarios.This paper provides an overview of the project and the main achieved results, along with their assessment and evaluation in terms of possible enhancements and future exploitations. Copyright © 2004 John Wiley & Sons, Ltd.
Advances of aeronautical communications in the EU framework
Authors: Holzbock Matthias , Hu Yim‐Fun , Jahn Axel , Werner Markus 
Published: January 2004

AbstractThis paper reports on the advancement in the research and development of aeronautical satellite communications within the EU framework. Starting from key aspects such as spectrum regulatory and marketing issues which affect the development of aeronautical communication systems, discussion on the motivation behind the two EU projects, ABATE and WirelessCabin and their interconnection then follows. ABATE concentrated on the development of an aeronautical communications system for flight routes in the European and Northern Atlantic regions. The enabling technology considered in ABATE is discussed. Major achievements and results obtained in the project are reported in this paper. These include the development of a powerful software tool based on a logical design methodology for aeronautical satellite communication systems as well as the characterization of the aeronautical channel through a series of channel measurement campaign and a demonstration of in‐flight multimedia satellite communication. The evolvement from ABATE to WirelessCabin is then highlighted. The main objective and current development of WirelessCabin since the start of the project are presented. In particular, issues on electromagnetic compatibility between different electronic equipments on board the aircraft cabin are discussed. Networking aspects for mobility, QoS and VPN support are studied. Specifically, different scenarios for the location management and address assignment schemes for mobility and VPN support are discussed in detail. Copyright © 2004 John Wiley & Sons, Ltd.
Multimedia services with QoS support in an integrated terrestrial and satellite UMTS network demonstrator: the IST VIRTUOUS project
Authors: Del Sorbo Filomena , Delli Priscoli Francesco 
Published: January 2004

AbstractThe integration of a terrestrial UMTS network with a satellite platform represents one of the most attractive proposals to develop a functional virtual home UMTS environment for a generic mobile user provided with an ‘ad hoc’ dual mode terminal, which will be able to exploit the two integrated systems (hereafter referred to as ‘segments’) for a set of innovative multimedia services. At this purpose, the IST research project ‘VIRTUOUS’ (virtual UMTS home on satellite) aimed at studying and implementing an integrated satellite and terrestrial UMTS (S‐UMTS, T‐UMTS) demonstrator in order to develop new multimedia services provided ‘anywhere for everyone’, targeting, at the same time, to an efficient exploitation of the satellite transmission capabilities. This paper deals with the description of the three major experiments were carried out on the VIRTUOUS demonstrator and with their achievements, i.e. (i) the development of a QoS supporting architecture (QoS experiment) for the T–S‐UMTS systems, (ii) the demonstration of advanced end‐user services (end user service experiment) and (iii) the achievement of a satisfactory user's mobility (inter segment roaming experiment).The paper is organised as follows: first a general introduction of the VIRTUOUS project and of its demonstrator is given. Then the three above mentioned experiments are described in detail with particular emphasis to their results. Finally the paper is concluded by a brief summary of the main achieved results. Copyright © 2004 John Wiley & Sons, Ltd.
Growth velocity assessment in paediatric AIDS: smoothing, penalized quantile regression and the definition of growth failure
Authors: Carey V. J. , Yong F. H. , Frenkel L. M. , McKinney R. M. 
Published: January 2004

AbstractThe analysis of growth records in paediatric anti‐HIV clinical trials plays an important role in trial evaluation. Growth failure may be a manifestation of progressive disease or treatment toxicity, and is commonly specified as a major trial outcome event indicating poor treatment performance. Despite new therapeutic advances against HIV proliferation in infected patients, accurate monitoring and interpretation of somatic growth in paediatric AIDS remains clinically important, in light of uncertainties regarding relationship between viral load reductions and achievement of favourable somatic growth profiles. Our aim in this paper is to construct a criterion for growth failure that discriminates patients whose risk of death subsequent to growth failure is elevated to a clinically significant degree. To construct the criterion, individual growth curves and velocities are modelled using loess smoothing, penalized likelihood quantile regressions are fit to model age‐specific growth velocity distributions for gender‐stratified cohorts, and proportional hazards model selection is conducted to identify features of velocity series that are informative on the survival distribution. The resulting growth‐failure criterion is expected to be useful for disease staging in resource‐limited medical environments where T‐cell counts and viral load measures are unavailable. Copyright © 2003 John Wiley & Sons, Ltd.
Estimation of genetic and environmental factors for binary traits using family data
Authors: Pawitan Y. , Reilly M. , Nilsson E. , Cnattingius S. , Lichtenstein P. 
Published: January 2004

AbstractWhile the family‐based analysis of genetic and environmental contributions to continuous or Gaussian traits is now straightforward using the linear mixed models approach, the corresponding analysis of complex binary traits is still rather limited. In the latter we usually rely on twin studies or pairs of relatives, but these studies often have limited sample size or have difficulties in dealing with the dependence between the pairs. Direct analysis of extended family data can potentially overcome these limitations. In this paper, we will describe various genetic models that can be analysed using an extended family structure. We use the generalized linear mixed model to deal with the family structure and likelihood‐based methodology for parameter inference. The method is completely general, accommodating arbitrary family structures and incomplete data. We illustrate the methodology in great detail using the Swedish birth registry data on pre‐eclampsia, a hypertensive condition induced by pregnancy. The statistical challenges include the specification of sensible models that contain a relatively large number of variance components compared to standard mixed models. In our illustration the models will account for maternal or foetal genetic effects, environmental effects, or a combination of these and we show how these effects can be readily estimated using family data. Copyright © 2004 John Wiley & Sons, Ltd.
Estimation of reporting delay and suicide incidence in Hong Kong
Authors: Cui Jisheng S. , Yip Paul S. F. , Chau P. H. 
Published: January 2004

AbstractThis paper uses a semi‐parametric method to examine the reporting delay distribution in suicides in Hong Kong reporting system. The data arise from a rightly truncated situation in which only suicide cases registered before a specific time are known to have occurred; otherwise they are not recorded in the known death files even if they have occurred. It is shown that the poisoning‐related suicide deaths have a longer reporting delay than other suicide methods. By modelling the reporting delay function, a Horvitz–Thompson‐type estimator is suggested to adjust for reporting delay and to provide a more timely estimate of the suicide incidences for monitoring the suicide problem in Hong Kong. Based on these analyses, we recommended a suitable cut‐off date to collect suicide cases occurring in the previous year and reported before this date in Hong Kong. Copyright © 2004 John Wiley & Sons, Ltd.
A log‐normal distribution model of the effect of bacteria and ear fenestration on hearing loss: a Bayesian approach
Authors: Gajewski Byron J. , Sedwick Jack D. , Antonelli Patrick J. 
Published: January 2004

AbstractChronic ear infection is a potentially life‐threatening illness that medical doctors typically treat with ear surgery. Despite the success of this treatment, complications can occur due to bacteria infection. Surgeons believe that this infection causes the patient to have clinically significant hearing damage. In order to understand such complications, surgeons must quantify the effect of bacteria, their toxins and ear surgery on hearing loss. To this end, the other two authors of this paper performed two experiments on guinea pigs to measure hearing thresholds following a bacterial infection and surgery of the inner ear. The response variable in these experiments is hearing thresholds measured in decibels (dB). The problem in analysing such experiments is that the hearing threshold observations often suffer from missing data and censoring mechanisms of various types. Additionally, the distribution of hearing thresholds has heavy tails and is peaked. In order to account for the above statistical issues, we present a Bayesian method with a location‐shifted log‐normal distribution. The method accounts for the uncertainty in the data collection mechanism and the parameters associated with a location‐shifted log‐normal distribution. We refer to one of the parameters as the ‘location‐shift’ parameter. The Bayesian approach provides a posterior distribution of the location‐shift parameter that we compare with values estimated in previously published studies. The immediate goal of our proposed method was to quantify the effects of ear surgery and bacteria infection on hearing loss. Thus, we present the merits of the method in the form of a case study, and report posterior distributions of mean hearing loss, probability of clinically significant hearing loss and relative risk. The results show that surgeon 2, using the surgical procedure ‘oval window’, poses a greater than 40 per cent chance of a 15dB hearing loss regardless of injection of bacteria or not. However, surgeon 1, using the surgical procedure ‘semicircular canal’, does not pose a significantly greater than 40 per cent chance of a 15dB hearing loss unless there is a Pseudomonas aeruginosa‐induced infection. Copyright © 2004 John Wiley & Sons, Ltd.
Optimal designs for Michaelis–Menten kinetic studies
Authors: Matthews J. N. S. , Allcock G. C. 
Published: January 2004

AbstractMany reactions in enzymology are governed by the Michaelis–Menten equation. Characterising these reactions requires the estimation of the parameters KM and Vmax which determine the Michaelis–Menten equation and this is done by observing rates of reactions at a set of substrate concentrations. The choice of substrate concentrations is investigated by determining Bayesian D‐optimal designs for a model in which residuals have a normal distribution with constant variance. Designs which focus on alternative quantities, such as KM or the ratio Vmax/KM are also considered. The effect on the optimal designs of alternative error distributions is also considered. Copyright © 2004 John Wiley & Sons, Ltd.
Doing business in Brazil: A strategic approach
Authors: Gouvea Raul 
Published: January 2004

AbstractBrazil has the largest economy in South America, and the second largest in Latin America, offering one of the most promising markets in the world. Along with China and India, Brazil is ranked among the nations with the highest predicted development rates in the next 25 years.In the early 2000s, Brazil accounted for 56% of all foreign direct investment flows to South America and 52.5% of the foreign direct investment stock in South America. Brazil is also a key player in the design and development of the Free Trade Agreement of the Americas (FTAA), which is scheduled to be effective by 2005. The FTAA is expected to be the world's largest regional trading block.In 2002, Brazil was ranked twelfth amongst the largest economies in the world. Brazil is one of the world's “Big Five” emerging markets, along with China, India, Mexico, and Indonesia. In the past decade, Brazil was second to China among emerging economies for received foreign direct investment.This article elaborates on the main aspects of doing business in Brazil and discusses some of the challenges and opportunities facing the Brazilian economy. © 2004 Wiley Periodicals, Inc.
Online/offline (hybrid) consumers and the attention economy
Authors: Rau Pradeep A. 
Published: January 2004

AbstractYoram (Jerry) Wind, Vijay Mahajan, & Robert Gunther. 2002. Convergence Marketing:
Strategies for Reaching the New Hybrid Consumer. Upper Saddle River, NJ: Prentice Hall. 368 pages. ISBN
0‐13065‐075‐7.Thomas H. Davenport & John C. Beck. 2001. The Attention Economy: Understanding the New Currency of
Business. Boston, MA: Harvard Business School Press. 272 pages. ISBN
1‐57851‐871‐7.
Rapid rise of China's semiconductor industry: What are the implications for Singapore?
Authors: Wu Friedrich , Loy Chua Boon 
Published: January 2004

AbstractLately, there has been a rush of foreign investment commitments in China's semiconductor industry, giving
rise to predictions of a semiconductor revolution in the world's most populous country. Pull factors include
China's entry into the World Trade Organization (WTO), which would clarify trading and investment
rules, government incentives, and, of course, burgeoning domestic demand.For the moment, because of U.S. export restrictions, China's chip industry will be kept behind the
technology curve by around five years. However, its ample supply of engineers and low labor costs will aid in the
development of the assembly & test and design sectors, which are labor‐intensive. But given strong
government commitment, the industry is likely to continue to progress upward, gaining from the diffusion of
high‐tech know‐how through its alliances with multinational corporations and tier‐one
foundries. In the industry's value chain, there is potential for Taiwan and China to complement each other in
both domestic and global markets, across both high‐ and low‐end technology segments, and across the
entire chain of activities.To meet the challenges, Singapore needs to further leverage on its competencies in infrastructure and logistics,
as well as the well‐established ASEAN production network for greater economies of scale. For Singapore's
semiconductor industry to remain competitive, there is a need to strengthen the full value chain, from integrated
circuit (IC) design to wafer fabrication to packaging & test, by attracting and building up companies
specializing in different competencies. Singapore semiconductor manufacturers should continuously strive to stay at
the technology forefront and provide competitive customer services. © 2004 Wiley Periodicals, Inc.
Dissociative disorders among psychiatric patients
Authors: Lipsanen Tapio , Korkeila Jyrki , Peltola Päivi , Järvinen Johanna , Langen Katja , Lauerma Hannu 
Published: January 2004

AbstractThe aim was to determine the rate of dissociative disorders among psychiatric in- (n= 34) and out-patients (n= 37) and to compare the rate to that of nonclinical subjects (n= 297). Dissociative disorders (17% of patients) could be grouped according to the severity of the symptoms and their relation to affective disorders.
Age and growth of redfish (Sebastes marinus, S. mentella, and S. fasciatus) on the Flemish Cap (Northwest Atlantic)
Authors: Saborido-Rey Fran , Garabana Dolores , Cerviño Santiago 
Published: January 2004

Abstract
Age determination of redfish is difficult. In this paper, the ages of Sebastes mentella on the Flemish Cap are validated by following year classes from 1991 to 2000. The criteria used for S. mentella are consistent and coherent. The growth of different year classes is described and compared, and density-dependence is demonstrated to influence the growth rate of the strong 1990 year class, growth of that year class being the slowest of those followed. The slow rate of growth prevented that year class from maturing at the anticipated age. Growth is also compared between sexes, of S. mentella, S. marinus, and S. fasciatus, revealing that females grow faster than males. Finally, growth rate is compared among species. S. marinus grows fastest and S. mentella slowest, although the influence of density-dependent growth in S. mentella needs to be taken into consideration.
Contralateral response of macrophages and astrocytes to injury in the cerebral hemisphere of 6‐day‐old rat following prenatal gamma irradiation
Authors: Setkowicz Zuzanna , Bień Ewa , Janeczko Krzysztof 
Published: January 2004

AbstractWistar pregnant rats were exposed to a single 1.0 Gy dose of gamma rays on gestational days 13, 15, 17 or 19 (E13, E15, E17 and E19, respectively). When offsprings of the irradiated females became 6‐day‐old, they received a mechanical injury of the cerebral hemisphere. One or 2 days after the injury, [3H]thymidine was injected and the animals were perfused. Brain sections were processed for BSI‐B4 isolectin histochemistry or immunohistochemistry for glial fibrillary acidic protein (GFAP) or S‐100‐β protein and subjected to autoradiography to visualise proliferating and non‐proliferating macrophages or proliferating astrocytes. Significant changes in the contralateral response to injury related to the day of prenatal irradiation could be detected. The response was minimal following irradiations performed on E15 and E17. At those stages of prenatal development, the majority of cortical neurons with interhemispheric connections were formed. Therefore, irradiation‐induced reduction of the neurons might minimise transfer of pathogenic stimuli to contralateral areas via degenerating nerve fibbers. Consequently, the degree at which the contralateral glial response reflected reactive changes at the lesion site might also be minimal. Results of the present study do not show in detail mechanisms underlying the differences in the contralateral reactivity to injury. They, however, might be of importance to histopathological investigations using animal models of cerebral dysplasia.
New measurement scales for evaluating perceptions of the technology‐mediated customer service experience
Authors: Froehle Craig M. , Roth Aleda V. 
Published: January 2004

AbstractService organizations are increasingly utilizing advanced information and communication technologies, such as the Internet, in hopes of improving the efficiency, cost‐effectiveness, and/or quality of their customer‐facing operations. More of the contact a customer has with the firm is likely to be with the back‐office and, therefore, mediated by technology. While previous operations management research has been important for its contributions to our understanding of customer contact in face‐to‐face settings, considerably less work has been done to improve our understanding of customer contact in what we refer to as technology‐mediated settings (e.g., via telephone, instant messaging (IM), or email). This paper builds upon the service operations management (SOM) literature on customer contact by theoretically defining and empirically developing new multi‐item measurement scales specifically designed for assessing technology‐mediated customer contact. Seminal works on customer contact theory and its empirical measurement are employed to provide a foundation for extending these concepts to technology‐mediated contexts. We also draw upon other important frameworks, including the Service Profit Chain, the Theory of Planned Behavior, and the concept of media/information richness, in order to identify and define our constructs. We follow a rigorous empirical scale development process to create parsimonious sets of survey items that exhibit satisfactory levels of reliability and validity to be useful in advancing SOM empirical research in the emerging Internet‐enabled back‐office.