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Terms modified by Article Presents Selected AbstractsThe Quality of Local District Assessments Used in Nebraska's School-Based Teacher-Led Assessment and Reporting System (STARS)EDUCATIONAL MEASUREMENT: ISSUES AND PRACTICE, Issue 2 2005Susan M. Brookhart A sample of 293 local district assessments used in the Nebraska STARS (School-based Teacher-led Assessment and Reporting System), 147 from 2004 district mathematics assessment portfolios and 146 from 2003 reading assessment portfolios, was scored with a rubric evaluating their quality. Scorers were Nebraska educators with background and training in assessment. Raters reached an agreement criterion during a training session; however, analysis of a set of 30 assessments double-scored during the main scoring session indicated that the math ratings remained reliable during scoring, while the reading ratings did not. Therefore, this article presents results for the 147 mathematics assessments only. The quality of local mathematics assessments used in the Nebraska STARS was good overall. The majority were of high quality on characteristics that go to validity (alignment with standards, clarity to students, appropriateness of content). Professional development for Nebraska teachers is recommended on aspects of assessment related to reliability (sufficiency of information and scoring procedures). [source] The Schooling of Women: Maternal Behavior and Child EnvironmentsETHOS, Issue 3 2001Professor Robert A. LeVine Beatrice Whiting was a member of the first generation of graduate students to be trained in psychological anthropology, and she has always presumed a broad range of connections between psychological and social processes. She salvaged the Six Cultures Study through an ecological analysis of its child-observation material, and she stimulated further studies, using quantitative and qualitative methods, of the ways in which broad categories like sex, age, and education influence child development. This article presents in overview a crosscultural research program on the effects of women's schooling that was influenced by her ideas. [source] BEYOND COMPARISON: HISTOIRE CROISÉE AND THE CHALLENGE OF REFLEXIVITY,HISTORY AND THEORY, Issue 1 2006MICHAEL WERNER ABSTRACT This article presents, in a programmatic way, the histoire croisée approach, its methodological implications and its empirical developments. Histoire croisée draws on the debates about comparative history, transfer studies, and connected or shared history that have been carried out in the social sciences in recent years. It invites us to reconsider the interactions between different societies or cultures, erudite disciplines or traditions (more generally, between social and cultural productions). Histoire croisée focuses on empirical intercrossings consubstantial with the object of study, as well as on the operations by which researchers themselves cross scales, categories, and viewpoints. The article first shows how this approach differs from purely comparative or transfer studies. It then develops the principles of pragmatic and reflexive induction as a major methodological principle of histoire croisée. While underlining the need and the methods of a historicization of both the objects and categories of analysis, it calls for a reconsideration of the way history can combine empirical and reflexive concerns into a dynamic and flexible approach. [source] Numerical simulation of overbank processes in topographically complex floodplain environmentsHYDROLOGICAL PROCESSES, Issue 4 2003A. P. Nicholas Abstract This article presents results from an investigation of the hydraulic characteristics of overbank flows on topographically-complex natural river floodplains. A two-dimensional hydraulic model that solves the depth-averaged shallow water form of the Navier,Stokes equations is used to simulate an overbank flow event within a multiple channel reach of the River Culm, Devon, UK. Parameterization of channel and floodplain roughness by the model is evaluated using monitored records of main channel water level and point measurements of floodplain flow depth and unit discharge. Modelled inundation extents and sequences are assessed using maps of actual inundation patterns obtained using a Global Positioning System, observational evidence and ground photographs. Simulation results suggest a two-phase model of flooding at the site, which seems likely to be representative of natural floodplains in general. Comparison of these results with previous research demonstrates the complexity of overbank flows on natural river floodplains and highlights the limitations of laboratory flumes as an analogue for these environments. Despite this complexity, frequency distributions of simulated depth, velocity and unit discharge data closely follow a simple gamma distribution model, and are described by a shape parameter (,) that exhibits clear systematic trends with changing discharge and floodplain roughness. Such statistical approaches have the potential to provide the basis for computationally efficient flood routing and overbank sedimentation models. Copyright © 2002 John Wiley & Sons, Ltd. [source] Should amenorrhea be a diagnostic criterion for anorexia nervosa?INTERNATIONAL JOURNAL OF EATING DISORDERS, Issue 7 2009Evelyn Attia MD Abstract Objective: The removal of the amenorrhea criterion for anorexia nervosa (AN) is being considered for the fifth edition of The Diagnostic and Statistical Manual (DSM-V). This article presents and discusses the arguments for maintaining as well as those for removing the criterion. Method: The psychological and biological literatures on the utility of amenorrhea as a distinguishing diagnostic criterion for AN and as an indicator of illness severity are reviewed. Results: The findings suggest that the majority of differences among patients with AN who do and do not meet the amenorrhea criterion appear largely to reflect nutritional status. Overall, the two groups have few psychological differences. There are mixed findings regarding biological differences between those with AN who do and do not menstruate and the relationship between amenorrhea and bone health among patients with AN. Discussion: Based on these findings, one option is to describe amenorrhea in DSM-V as a frequent occurrence among individuals with AN that may provide important information about clinical severity, but should not be maintained as a core diagnostic feature. The possibilities of retaining the criterion or eliminating it altogether are discussed. © 2009 American Psychiatric Association. Int J Eat Disord 2009 [source] What is this thing called BED?INTERNATIONAL JOURNAL OF EATING DISORDERS, Issue S1 2003Current status of binge eating disorder nosology Abstract Objective Although binge eating has been recognized as a clinically relevant behavior among the obese for more than four decades, the concept of binge eating disorder (BED) as a distinct psychiatric diagnosis is of much more recent origin. This article presents four ways of conceptualizing BED: a distinct disorder in its own right, as a variant of bulimia nervosa, as a useful behavioral subtype of obesity, and as a behavior that reflects psychopathology among the obese. It also summarizes the evidence supporting and disconfirming each model. Method The literature subsequent to the development of DSM-IV regarding the reliability and validity of BED and related conditions was reviewed selectively. Results The preponderance of the evidence suggests that BED differs importantly from purging bulimia nervosa and that BED is not a strikingly useful behavioral subtype of obesity. Discussion Further study is needed to definitively determine the validity of BED as a distinct eating disorder. © 2003 by Wiley Periodicals, Inc. Int J Eat Disord 34: S2,S18, 2003. [source] Screening for depression and anxiety: correlates of non-response and cohort attrition in the Netherlands Study of Depression and Anxiety (NESDA)INTERNATIONAL JOURNAL OF METHODS IN PSYCHIATRIC RESEARCH, Issue 4 2009Willem Jan Van Der Veen Abstract A major problem in the analysis of attrition of cohorts in studies on mental health problems is that data on those who do not participate at the outset of a study are largely unavailable. It is not known how underlying psychopathology affects the first stages of screening where non-response and selectivity are usually highest. This article presents results of one of the centres of the Netherlands Study of Depression and Anxiety (NESDA), a longitudinal study aimed at describing the long-term course and consequences of depression and anxiety disorders. The aim is to describe the different ways of attrition during the first NESDA-wave in a cohort of patients aged 18,65 years of the Registration Network Groningen and to analyse whether attrition is related to gender, age and psychopathology as recorded in general practice. The attrition of the study cohort (n = 8475) was highest during the first stages, eventually leading to a population of 169 patients only who participated in the full NESDA-programme. Probabilities of transition from one stage of the screening process to the next were regressed on selected background variables using binary logistic regression. Correlates of participation were being female and being older (>40). Psychopathology was an important variable in the formation of the initial sample cohort, but only had a weak influence on patient response to the screening questionnaire. Study design factors had a stronger impact on the changing composition of the cohort at each screening stage compared to patient factors. Copyright © 2009 John Wiley & Sons, Ltd. [source] Boats for Rivers and Mountains: Sources for New Narratives about River Travel?INTERNATIONAL JOURNAL OF NAUTICAL ARCHAEOLOGY, Issue 1 2008Pål Nymoen What is a boat? Our notions of what constitutes a good boat are tested when it comes to logboats. They are often considered to be of low status, both technologically and functionally. However, logboats are more interesting than that. This article presents three logboats dated to the Roman era and late Viking age, found in the region of Telemark, Norway. The principal concern is to discuss how notions about prehistoric boats can be made known, challenged and discussed by examining the three boats in the context of the rivers and lakes in which they were most probably used. © 2007 Author [source] Supervisory support as a major condition to enhance transferINTERNATIONAL JOURNAL OF TRAINING AND DEVELOPMENT, Issue 1 2001Marcel Van Der Klink Supervisory support is perceived as a major condition for enhancing the transfer of training. This article presents two studies that investigated the impact of supervisory behaviour on trainees' transfer. Both studies were carried out in banking organisations. One study consisted of the investigation of a training programme that provided bank tellers with the knowledge and skills for handling customers' complaints. The other study focused on the transfer of the training programme ,legal aspects of bank tellers' jobs'. In neither study was there any convincing evidence for the impact of supervisory behaviour on the transfer of training. The implications for future research and current practice are discussed here. [source] Using Comparative Frontiers to Explore World-Systems Analysis in International RelationsINTERNATIONAL STUDIES PERSPECTIVES, Issue 3 2001Thomas D. Hall This article presents one way to approach the case study versus theoretically driven approach to teaching comparative courses. The goal is to actively engage students in doing international studies, not simply reading about the work of others. The method derives a broad set of case studies from some theoretical approach. Students then conduct and present their own case studies. Students then use their own case studies and those examined by the class as a whole as vehicles for interrogating, critiquing, and extending that theoretical approach. These final exercises in theory-building are a significant part of this approach. The specific example presented here uses world-systems analysis as the vehicle for organizing comparative study of frontiers. However, this method could readily employ other theoretical models to examine other theoretical and/or empirical puzzles via specific case studies. [source] Relational aggression and victimization in gay male relationships: the role of internalized homophobiaAGGRESSIVE BEHAVIOR, Issue 5 2008Thomas M. Kelley Abstract This article presents two studies that are the first to examine relational aggression and relational victimization in gay male peer relationships. A qualitative pilot study provides a strong rationale for a subsequent empirical investigation of 100 young adult, self-identified gay males. Results of both studies demonstrate that relational aggression and relational victimization are common experiences in gay male relationships. They also reveal forms of relational aggression and victimization that appear to be unique to gay males (e.g., outing). Results of the empirical study found significant relations between engaging in relational aggression against gay males and experiencing relational victimization and between experiencing relational victimization and internalized homophobia. However, there was no significant correlation between internalized homophobia and engaging in relational aggression. A multiple regression analysis found that experiencing relational victimization was correlated more strongly with the combination of engaging in relational aggression and internalized homophobia together than with relational aggression alone. Results are discussed within the framework of Allport's "traits due to victimization" theory and Meyer's theory of "minority stress." Implications for the prevention of relational aggression/victimization in gay male relationships are offered. Aggr. Behav. 34:475,485, 2008. © 2008 Wiley-Liss, Inc. [source] Factors affecting the next generation of women leaders: Mapping the challenges, antecedents, and consequences of effective leadershipJOURNAL OF LEADERSHIP STUDIES, Issue 2 2009Rene P. McEldowney This article introduces a conceptual model for understanding how young women perceive the current challenges of leadership. Numerous studies and articles claim that women are better educated, more experienced, and better suited for leadership positions than ever before. This news is encouraging, but the number of women in leadership roles in American politics gained less than one percentage point this year, hovering around 22%, while in the private sector many organizations have yet to place a single woman on their board. The proportion of women on corporate boards is 16%, with no evidence that this is likely to grow in the near future. What is even more discouraging is that these low numbers are not significantly higher than those in many developing nations. It is evident that women are underrepresented in top leadership positions and must intensely challenge the status quo. This article presents results of a study based on in-depth interviews with college women who are seeking paths to leadership. The researchers employ qualitative analytical research tools to explore the complexities of the phenomena. The findings bring a greater understanding of the antecedents and consequences that lie beneath the challenges affecting the next generation of women leaders. [source] Investigation of nonuniformity in a liquid,solid fluidized bed with identical parallel channelsAICHE JOURNAL, Issue 1 2010Long Fan Abstract Previous work has demonstrated that multiphase flow through identical parallel channels and multiple cyclones can give rise to significant nonuniformity among the flow paths. This article presents results from a study where the distribution of voidage and flux through parallel channels in liquid,solid fluidized beds is investigated. Experiments and computational fluid dynamics simulations were performed with 1.2 mm glass beads fluidized by water where a cross baffle divided a 191 mm diameter column into four identical parallel channels. Voidages were measured by optical fiber probes. Simulations from a three-dimensional unsteady-state Eulerian,Eulerian model based on FLUENT software showed good agreement with the experimental results. Despite the symmetrical geometry of the system, the average voidage and particle velocities in one channel differed somewhat from those in the others. Increasing the superficial liquid velocity could increase voidage greatly and affect the degree of nonuniformity in the four channels. © 2009 American Institute of Chemical Engineers AIChE J, 2009 [source] Gastrointestinal stromal tumours: A clinico-radiologic review from a single centre in South IndiaJOURNAL OF MEDICAL IMAGING AND RADIATION ONCOLOGY, Issue 6 2009A Singh Summary Gastrointestinal stromal tumours (GISTs) are rare tumours but are the commonest mesenchymal neoplasms in the gastrointestinal tract. To our knowledge, there is no large case series in Asian countries in which a clinico-radiological descriptive analysis of these tumours has been carried out. In this retrospective study, we analysed our experience of 70 patients with histopathologically proven GISTs, who were presurgically investigated by using CT, and describe the demography, anatomical distribution, imaging features and clinical course of the GIST. We found an unusually large predominance of males in our study, stomach and small bowel appeared to have been involved similarly and small bowel tumours had a higher rate of metastases. We also highlight some unusual CT features of these tumours that we encountered during the study, such as the presence of metastatic lymphadenopathy and satellite nodules, relapse in appendices epiploicae of the bowel, metachronous liposarcoma, adrenal and lung metastases, multiplicity of lesions and aneurysmal dilatation of the bowel. Two of our patients also had multiple neurofibromas, whose association with GIST has been seen in earlier reports. To the best of our knowledge, this article presents one of the largest series of articles on GISTs, to date, in Asian countries. We conclude with a differential diagnosis of GIST, with salient features distinguishing each entity. [source] A clustering-based semi-automated technique to build cultural ontologiesJOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 3 2009Ramesh Srinivasan This article presents and validates a clustering-based method for creating cultural ontologies for community-oriented information systems. The introduced semiautomated approach merges distributed annotation techniques, or subjective assessments of similarities between cultural categories, with established clustering methods to produce "cognate" ontologies. This approach is validated against a locally authentic ethnographic method, involving direct work with communities for the design of "fluid" ontologies. The evaluation is conducted with of a set of Native American communities located in San Diego County (CA, US). The principal aim of this research is to discover whether distributing the annotation process among isolated respondents would enable ontology hierarchies to be created that are similar to those that are crafted according to collaborative ethnographic processes, found to be effective in generating continuous usage across several studies. Our findings suggest that the proposed semiautomated solution best optimizes among issues of interoperability and scalability, deemphasized in the fluid ontology approach, and sustainable usage. [source] Issue Representation in Neighborhood Organizations: Questing for Democracy at the GrassrootsJOURNAL OF URBAN AFFAIRS, Issue 2 2000David Swindell In this era of government reinvention and devolution, some have expressed interest in applying that logic to the local level by including neighborhood associations among the mechanisms for delivering urban services. However, if decision-making authority were to be decentralized to a greater extent, there is the possibility that the decisions of these organizational participants might not be reflective of the group they are supposed to represent. This article seeks to examine the issue representation ability of neighborhood associations. Using a unique neighborhood-level dataset from Indianapolis, this analysis reveals how representative the organization's activities are in terms of the issues that are of most importance to residents (other participants and non-participants). In addition, the article presents and tests a model to explain differences in the levels of representation. The findings raise concerns with the wisdom of such devolution as well as highlight the environmental and organizational characteristics that influence issue representation. [source] Are the Key Stage Two Reading Tests becoming easier each year?LITERACY, Issue 1 2001Mary Hilton This article presents and discusses some new research on the National Curriculum Key Stage Two reading tests for years 1998, 1999 and 2000. The research task was to use the original categories designed and declared by the QCA in 1998 to analyse the reading tests in the two subsequent years in order to examine the reliability of the tests. The research shows that in 1999, and again in 2000 the reading tests were progressively easier for the children to answer. This was because the number of questions requiring higher-order reading skills, particularly those of inference and deduction, has decreased each year, while the number of questions requiring the lower-order skill of literal information retrieval has increased. In this way the author questions the QCA's declared ,rise in reading standards' from 1998 onwards. [source] Penile resurfacing with vascularized fascia lataMICROSURGERY, Issue 6 2005Andreas I. Gravvanis M.D., Ph.D. Penis resurfacing is a challenging procedure, and should simultaneously ensure erectile function, tactile sensibility, sexual satisfaction, and aesthetic integrity. This article presents three cases with penile skin defects treated by means of a pedicled fascia lata attached either to the tensor fascia lata (one case) or an anterolateral thigh flap (two cases). The cause of the wounds included electrical burn, Fournier's gangrene, and self-mutilation. The size of flaps ranged from 10,13 cm in width and 15,30 cm in length. All flaps included vascularized fascia lata, which covered part or the circumference of the penis. All flaps survived completely. The lateral cutaneous nerve of the thigh was included in the designed flaps in all instances, and normal protective sensation was recorded postoperatively. The patients reported normal erectile function and ability to perform intercourse. The flaps, though relatively bulky and hairy, had a good color and texture match with the penis and suprapubic region. Based on our limited experience, we believe that the anterolateral thigh flap has greater dimensions with a longer pedicle, and allows for greater flexibility in flap design compared to the tensor fascia lata flap. An anterolateral thigh flap can be safely thinned in a second stage, and it is our flap of choice for penis resurfacing. © 2005 Wiley-Liss, Inc. Microsurgery 25:462,468, 2005 [source] Low-loss and high-isolation active type cascode switch in 0.13-,m CMOS for millimeter-wave applicationsMICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 8 2009Dong Ho Lee Abstract This article presents two types of switches which are fabricated in 0.13-,m standard CMOS process characterized up to 50 GHz. The first is the conventional series NMOS switch with an optimum gate width which is adjusted by measuring various sized devices. The second is a new active type cascode switch for millimeter-wave phased array systems. The series NMOS switch produces 3 dB insertion loss and 7.5 dB isolation at 40 GHz. In contrast, the active type cascode switch has 7.5 dB better insertion loss (Gain) and 20 dB better isolation than the passive switch at 40 GHz. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1856,1858, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24476 [source] On the sources reconstruction method application for array and aperture antennas diagnosticsMICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 7 2009Fernando Las-Heras Abstract This article presents two practical applications of the Sources Reconstruction Method for antenna diagnostics and antenna manufacturing errors detection. The goal is to show the SRM capabilities to determine defective elements in antenna arrays as well as to detect irregularities in the surface of reflector antennas from the analysis of the aperture fields. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1664,1668, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24416 [source] Numerical stability of the BEM for advection-diffusion problemsNUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS, Issue 5 2004Andrés Peratta Abstract A boundary element method (BEM) approach has been developed to solve the time-dependent 1D advection-diffusion equation. The 1D solution is part of a 3D numerical scheme for solving advection-diffusion (AD) problems in fractured porous media. The full 3D scheme includes a 3D solution for the porous matrix, which is coupled with a 2D solution for fractures and a 1D solution for fracture intersections. As the hydraulic conductivity of the fracture intersections is usually higher than the hydraulic conductivity of the fractures and by at least one order of magnitude higher than the hydraulic conductivity of the porous matrix, the fastest flow and solute transport occurs in the fracture intersections. Therefore it is important to have an accurate and stable 1D solution of the transient AD problems. This article presents two different 1D BEM formulations for solution of the AD problems. The particular advantage of these formulations is that they provide one of the most straightforward and simplest ways to couple multiple intersecting 2D Boundary Element problems discretized with linear discontinuous elements. Both formulations are tested and compared for accuracy, stability, and consistency. The analysis helps to select the more suitable formulations according to the properties of the problem under consideration. © 2004 Wiley Periodicals, Inc. Numer Methods Partial Differential Eq, 2004 [source] Seven issues to consider when designing training curriculaPERFORMANCE IMPROVEMENT, Issue 7 2010Jennie Phillips MA Most organizations focus on one-off training solutions to address a single workplace learning need at a single time rather than integrating learning and nonlearning interventions to help staff develop increasingly complex levels of expertise specific to their jobs. Curriculum is a long-term, integrated approach to training in which workers take several related courses over a period of time. This article presents seven design issues that distinguish curriculum design from course design. [source] Marktdesign und Experimentelle WirtschaftsforschungPERSPEKTIVEN DER WIRTSCHAFTSPOLITIK, Issue 2009Axel Ockenfels Institutions matter because they affect incentives, and decision makers respond to incentives. Yet, they do not always do so rationally. Experimental economics complements economic theory by observing the performance of mechanisms in the context of actual decision processes faced by real people. It also answers questions that cannot be answered by theory and field data, tests hypotheses and identifies causalities suggested by theory and field observations, collects facts and phenomena that may stimulate behavioral theories of market design, eases cross-disciplinary cooperation, and communicates economic research to market participants, managers and other real-world decision makers. This article presents selected examples to illustrate how experimental economics may interplay with the more traditional economic toolbox to promote economic engineering both in research and in practice. [source] On the Determinants of Mortality Reductions in the Developing WorldPOPULATION AND DEVELOPMENT REVIEW, Issue 2 2007Rodrigo R. Soares This article presents and critically discusses evidence on the determinants of mortality reductions in developing countries. It argues that increases in life expectancy between 1960 and 2000 were largely independent of improvements in income. The author characterizes the age and cause-of-death profile of changes in mortality and assesses what can be learned about the determinants of these changes from the international evidence and from country-specific studies. Public health infrastructure, immunization, targeted programs, and the spread of less palpable forms of knowledge all seem to have been important factors. Finally, the article suggests that the evolution of health inequality across and within countries is intrinsically related to the process of diffusion of new technologies and to the nature of these new technologies, public or private. [source] Acute Myocardial Infarction and Acute Coronary Syndrome: Then and Now (1950,2005)PREVENTIVE CARDIOLOGY, Issue 4 2006Monte Malach MD Advances in the prevention, diagnosis, and treatment of acute myocardial infarction (AMI) and acute coronary syndrome (ACS) have been remarkable since the mid-20th century. Even the clinical terminology used to describe some of the various components of ACS have undergone change, while the latter term itself represents a fairly recent addition to the medical lexicon. Although there have been dramatic changes in the diagnostic and therapeutic interventions used and impressive declines in morbidity and mortality, the differential diagnosis and complications of AMI and ACS remain as challenging now as they were a half century ago. This article presents in detail the medical understanding of AMI in the mid-20th century and how physicians of that era managed it and its complications, and contrasts this with current evidence-based knowledge and interventions. [source] Applications of mulch biowalls,three case studiesREMEDIATION, Issue 1 2009Kevin A. Morris Mulch biowalls are proving to be an effective means of generating reducing conditions for the in situ anaerobic reduction of contaminants in groundwater that are amenable to the reduction process. Mulch is an inexpensive and readily available substrate that provides a long-lasting carbon and electron donor source for the stimulation of the anaerobic reduction process in groundwater. Examples of contaminants that are amenable to the biotic anaerobic reduction process include: chlorinated alkenes and alkanes, explosives, perchlorate, some metals, and petroleum hydrocarbons. The microbial degradation of cellulose fibers (mulch) is arguably the oldest reduction process known and is evident anywhere that plant material, soil, and water are present together. This article presents three case studies discussing three different uses of mulch biowalls to stimulate the anaerobic bioremediation of contaminants in shallow soils and groundwater. © 2009 Wiley Periodicals, Inc. [source] In situ remediation of MTBE utilizing ozoneREMEDIATION, Issue 1 2002Jeffrey C. Dey There has been a great deal of focus on methyl tertiary butyl ether (MTBE) over the past few years by local, state, and federal government, industry, public stakeholders, the environmental services market, and educational institutions. This focus is, in large part, the result of the widespread detection of MTBE in groundwater and surface waters across the United States. The presence of MTBE in groundwater has been attributed primarily to the release from underground storage tank (UST) systems at gasoline service stations. MTBE's physical and chemical properties are different than other constituents of gasoline that have traditionally been cause for concern [benzene, toluene, ethylbenzene, and xylenes (BTEX)]. This difference in properties is why MTBE migrates differently in the subsurface environment and exhibits different constraints relative to mitigation and remediation of MTBE once it has been released to subsurface soils and groundwater. Resource Control Corporation (RCC) has accomplished the remediation of MTBE from subsurface soil and groundwater at multiple sites using ozone. RCC has successfully applied ozone at several sites with different lithologies, geochemistry, and concentrations of constituents of concern. This article presents results from several projects utilizing in situ chemical oxidation with ozone. On these projects MTBE concentrations in groundwater were reduced to remedial objectives usually sooner than anticipated. © 2002 Wiley Periodicals, Inc. [source] The Economic Situation of First and Second-Generation Immigrants in France, Germany and the United Kingdom,THE ECONOMIC JOURNAL, Issue 542 2010Yann Algan A central concern about immigration is the integration into the labour market, not only of the first generation but also of subsequent generations. Little comparative work exists for Europe's largest economies. France, Germany and the UK have all become, perhaps unwittingly, countries with large immigrant populations albeit with very different ethnic compositions. Today, the descendants of these immigrants live and work in their parents' destination countries. This article presents and discusses comparative evidence on the performance of first and second-generation immigrants in these countries in terms of education, earnings and employment. [source] Conceptual framework from the Paris Psychosomatic School: A clinical psychoanalytic approach to oncology,THE INTERNATIONAL JOURNAL OF PSYCHOANALYSIS, Issue 3 2010Marilia Aisenstein This article presents further clinical material from the Paris Psychosomatic School (Aisenstein, 2006). The Freudian foundations of psychosomatics are detailed and post-Freudian developments focusing on the contribution of the Paris Psychosomatic School are outlined, in particular, the somatizing process as a result of regression and the somatizing process as a result of drive unbinding. The authors argue that the latter possibly gives rise to progressive and serious illness leading to death. The relationship of classical psychoanalysis to psychotherapeutic treatment from the angle of the Paris school is commented on. The authors then turn to two clinical presentations of women suffering from breast cancer. The method of evaluating the patients' capacities for undergoing psychotherapeutic treatment and their mental capacity for healing is discussed. The face-to-face psychoanalytic treatment undertaken with the second case is discussed. Finally, the authors recall Freud's insistence after 1920 on the opposition of the life drives and the death drives, which placed self-destruction at the centre of psychic functioning. They conclude that current research in biology and medicine, notably research concerning programmed cell death, will converge with psychoanalytic psychosomatics to illuminate somatizing processes and demonstrate the relevance of psychoanalytic treatment to patients who are capable of mental reorganization in the course of their illness and medical treatment. [source] Networking as a Means to Strategy Change: The Case of Open Innovation in Mobile TelephonyTHE JOURNAL OF PRODUCT INNOVATION MANAGEMENT, Issue 6 2007Koen Dittrich The purpose of this article is to investigate how innovation networks can be used to deal with a changing technological environment. This study combines different concepts related to research and development (R&D) collaboration strategies of large firms and applies these concepts to R&D alliance projects undertaken by Nokia Corporation in the period 1985,2002. The research methodology is a combination of in-depth semistructured interviews and a large-scale quantitative analysis of alliance agreements. For the empirical analysis a distinction is made between exploration and exploitation in innovation networks in terms of three different measures. As a first measure, the difference between exploration and exploitation strategies by means of the observed capabilities of the partners of the contracting firms is investigated. The second measure is related to partner turnover. The present article argues that in exploration networks partner turnover will be higher than in exploitation networks. As a third measure, the type of alliance contract will be taken; exploration networks will make use of flexible legal organizational structures, whereas exploitation alliances are associated with legal structures that enable long-term collaboration. The case of Nokia has illustrated the importance of strategic technology networks for strategic repositioning under conditions of change. Nokia followed an exploitation strategy in the development of the first two generations of mobile telephony and an exploration strategy in the development of technologies for the third generation. Such interfirm networks seem to offer flexibility, speed, innovation, and the ability to adjust smoothly to changing market conditions and new strategic opportunities. These two different strategies have led to distinctly different international innovation networks, have helped the company in becoming a world leader in the mobile phone industry, and have enabled it to sustain that position in a radically changed technological environment. This study also illustrates that Nokia effectively uses an open innovation strategy in the development of new products and services and in setting technology standards for current and future use of mobile communication applications. This article presents one of the first longitudinal studies, which describes the use of innovation networks as a means to adapt swiftly to changing market conditions and strategic change. This study contributes to the emerging, but still inconsistent, literature on explorative and exploitative learning by means of strategic technology networks. [source] | |||||||||||||||||||||||||||||||||||||