Research Attention (research + attention)

Distribution by Scientific Domains


Selected Abstracts


A shear-dilation-based model for evaluation of hydraulically stimulated naturally fractured reservoirs

INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, Issue 5 2002
M. K. Rahman
Abstract The role of shear dilation as a mechanism of enhancing fluid flow permeability in naturally fractured reservoirs was mainly recognized in the context of hot dry rock (HDR) geothermal reservoir stimulation. Simplified models based on shear slippage only were developed and their applications to evaluate HDR geothermal reservoir stimulation were reported. Research attention is recently focused to adjust this stimulation mechanism for naturally fractured oil and gas reservoirs which reserve vast resources worldwide. This paper develops the overall framework and basic formulations of this stimulation model for oil and gas reservoirs. Major computational modules include: natural fracture simulation, response analysis of stimulated fractures, average permeability estimation for the stimulated reservoir and prediction of an average flow direction. Natural fractures are simulated stochastically by implementing ,fractal dimension' concept. Natural fracture propagation and shear displacements are formulated by following computationally efficient approximate approaches interrelating in situ stresses, natural fracture parameters and stimulation pressure developed by fluid injection inside fractures. The average permeability of the stimulated reservoir is formulated as a function of discretized gridblock permeabilities by applying cubic law of fluid flow. The average reservoir elongation, or the flow direction, is expressed as a function of reservoir aspect ratio induced by directional permeability contributions. The natural fracture simulation module is verified by comparing its results with observed microseismic clouds in actual naturally fractured reservoirs. Permeability enhancement and reservoir growth are characterized with respect to stimulation pressure, in situ stresses and natural fracture density applying the model to two example reservoirs. Copyright © 2002 John Wiley & Sons, Ltd. [source]


Families and children with hearing loss: Grief and coping

DEVELOPMENTAL DISABILITIES RESEARCH REVIEW, Issue 4 2003
Ellen Kurtzer-White
Abstract Parental coping with the diagnosis of their child's hearing impairment has not received a great deal of research attention, despite the evident importance of it. Parental coping has been changing with the inception of newborn screening as we move from a parent-initiated model of diagnosis to an institution-initiated model. Coping now begins without any preparation, and without any time for parents to "enjoy" their child as "normal." The grief models, based on the death experience, usually employed to describe parental reactions to the diagnosis may also be inappropriate. Death grief is terminable whereas parental grief is chronic. There is not sufficient research on the long-term effects of chronic grief and how that impacts on parent-child bonding. There is evidence that our screening endeavors have far outstripped our habilitation efforts, leaving parents with a diagnosis but without support. This gap must be closed. MRDD Research Reviews 2003;9:232,235. © 2003 Wiley-Liss, Inc. [source]


Group cognitive behavioural therapy for obsessive,compulsive disorder: a systematic review and meta-analysis

ACTA PSYCHIATRICA SCANDINAVICA, Issue 2 2009
H. Jónsson
Objective:, Behaviour therapy with exposure and response prevention (ERP) or cognitive behavioural therapy (CBT) including ERP are considered the psychological treatments of choice for obsessive,compulsive disorder (OCD), but group CBT/ERP has received relatively little research attention in the treatment of OCD. The aim of this study was to provide a meta-analysis of the effectiveness of group CBT/ERP for OCD. Method:, A systematic literature search was conducted and studies were meta-analysed by means of the Cochrane Review Manager Program with measures of i) pre- to post-effect sizes (ES) and ii) between-group ES in comparison with different control conditions. Outcome was primarily measured on the Y-BOCS and ES was calculated in the form of Cohens d. Results:, Thirteen trials were included in the meta-analysis. The overall pre,post-ES of these trials of 1.18 and a between-group ES of 1.12 compared with waiting list control in three randomized controlled studies indicate that group CBT/ERP is an effective treatment for OCD. Group CBT achieved better results than pharmacological treatment in two studies. One study found no significant differences between individual and group CBT. Conclusion:, Group CBT is an effective treatment for OCD, but more studies are needed to compare the effectiveness of group and individual treatment formats. [source]


Functional Adhesive Surfaces with "Gecko" Effect: The Concept of Contact Splitting,

ADVANCED ENGINEERING MATERIALS, Issue 5 2010
Marleen Kamperman
Abstract Nature has developed reversibly adhesive surfaces whose stickiness has attracted much research attention over the last decade. The central lesson from nature is that "patterned" or "fibrillar" surfaces can produce higher adhesion forces to flat and rough substrates than smooth surfaces. This paper critically examines the principles behind fibrillar adhesion from a contact mechanics perspective, where much progress has been made in recent years. The benefits derived from "contact splitting" into fibrils are separated into extrinsic/intrinsic contributions from fibril deformation, adaptability to rough surfaces, size effects due to surface-to-volume ratio, uniformity of stress distribution, and defect-controlled adhesion. Another section covers essential considerations for reliable and reproducible adhesion testing, where better standardization is still required. It is argued that, in view of the large number of parameters, a thorough understanding of adhesion effects is required to enable the fabrication of reliable adhesive surfaces based on biological examples. [source]


Literary Discussions and Advanced Speaking Functions: Researching the (Dis) Connection

FOREIGN LANGUAGE ANNALS, Issue 2 2004
Richard Donato PhD
Motivating this study was the need for research to determine how discussion in advanced undergraduate literature courses provides discourse opportunities to students to develop advanced language functions, as defined in the ACTFL Guidelines. Despite claims that literature classes play an additional role in developing language proficiency, this issue has not received serious research attention. In this study, classroom transcripts were analyzed for the following features: (1) discourse structure of the literary discussion; (2) the use of teacher questions; (3) verb tense distribution; and (4) student uptake. The analysis attempted to uncover how literary discussion afforded opportunities for students to describe, to narrate in major timeframes, to use extended discourse, to share opinions and arguments, to explore alternatives, and to hypothesize,all advanced and superior level speaking functions. The study also included instructor and student interviews to determine their views of foreign language literature classes and to see if what was observed could be explained by the goals the instructor and students had expressed. The findings suggest that simply having a literary discussion does not ensure that students will be pushed to use the language in advanced ways even when faced with tasks requiring critical thinking and advanced language use. One issue that this study reveals is that, for students to experience speaking in the advanced ranges of proficiency, discussions must enable complex thinking in complex language. Other findings suggest that literature instructors should be aware of the discourse opportunities that arise in literary discussions, should make speaking expectations and advanced functions clear to students, and should monitor student language use during discussions. [source]


SPATIAL ASSOCIATIONS BETWEEN LONGEST-LASTING WINTER SNOW COVER AND COLD REGION LANDFORMS IN THE HIGH DRAKENSBERG, SOUTHERN AFRICA

GEOGRAFISKA ANNALER SERIES A: PHYSICAL GEOGRAPHY, Issue 2 2009
STEFAN W. GRAB
ABSTRACT. Although snow is known to influence landform genesis and distribution, the spatial associations between snow and landforms within particular cold regions has received limited research attention. We present a case study from the high Drakensberg of southern Africa, comparing the contemporary spatial pattern of longest-lasting cold-season snow patches with the distribution patterns of active and relic cold region landforms. Two 30 m resolution sets of TM images dated 3 and 19 August 1990 and a DEM were used to demonstrate the geographic trends of snow patch depletion during late winter. Geomorphological phenomena with known coordinates were then incorporated into the GIS. The spatial distribution of several periglacial land-forms (earth hummocks, stone-/turf-banked lobes, block deposits, large sorted patterned ground) coincides with topographic positions that limit snow accumulation. However, the strong spatial association between longest-lasting snow patches and palaeo-moraines implies substantial snow accumulation at some high altitude south-facing sites during the last glacial cycle. [source]


Turf exfoliation in the high Drakensberg, Southern Africa

GEOGRAFISKA ANNALER SERIES A: PHYSICAL GEOGRAPHY, Issue 1 2002
Stefan W. Grab
Limited research attention has focussed on turf exfoliation as a denudation process in mountain environments. This paper examines some characteristics of turf exfoliation forms identified within particular valley zones in the Drakensberg alpine belt. Morphological and sedimentological data are presented for turf exfoliated sites investigated in the Mashai Valley of eastern Lesotho. It is found that a variety of processes, including needle ice action, biological activity, fluvial processes and deflation, operating synergistically, are responsible for contemporary turf exfoliation in the high Drakensberg. It is apparent that the strong seasonality from mild, wet summers to cold, dry winters has helped induce the annual cycle of dominating processes. [source]


Seeking Information About Sexual Health: Applying the Theory of Motivated Information Management

HUMAN COMMUNICATION RESEARCH, Issue 1 2006
Walid A. Afifi
Although considerable research attention has been devoted to studying the spread of HIV, recent attention to general sexual health has refocused attention to the far greater prevalence of other sexually transmitted infections. One way we might help control the spread of these infections is by better understanding the information management process as it relates to sexual health. Toward that effort, this investigation offers an empirical test of the Theory of Motivated Information Management (W. A. Afifi & Weiner, 2004), applying it to college students' search for target-related sexual health information. The results contribute to our understanding of information-seeking processes, offer mixed results regarding the theory's utility in this context, and show an association between information seeking and safer-sex behavior. [source]


Characterizing regional-scale variations in monthly and seasonal surface air temperature over Mexico

INTERNATIONAL JOURNAL OF CLIMATOLOGY, Issue 15 2004
Phil J. Englehart
Abstract Monthly and seasonal variations in surface air temperature (SAT) over Mexico have not received much research attention, a situation partly reflecting the lack of a coherent historical data set. As a step toward rectifying the data gap, this study outlines the development of a gridded monthly (2.5° × 2.5°lat.,long.) SAT data set (1940,2001) for Mexico. Using the data set, we investigate several basic dimensions of SAT variability. Our analysis demonstrates that much of the variability can be compactly expressed in terms of four regions which are physically plausible with respect to the country's climatology. Not surprisingly, persistence is an important component of regional SAT variability. Evaluated month to month, persistence tends to be greatest during the warm season, whereas across seasons there is evidence for persistence of warm season anomalies into the following cool season, behaviour that is consistent with positive feedback relationships between SAT, rainfall and land surface conditions. The regional time series display longer period variability that is partially linked to the state of the large-scale, slowly evolving climate modes of the Atlantic multidecadal oscillation and the Pacific decadal oscillation. Analyses are also presented to describe teleconnections between SAT and the El Niño,southern oscillation phenomena, and SAT and other large-scale atmospheric modes, such as the Pacific North American pattern and the North Atlantic oscillation. Copyright © 2004 Royal Meteorological Society [source]


Petri net model of protocol conversion for CTF service: its universal coupling criteria and property analysis

INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS, Issue 5 2007
Xiaomin Zhu
Abstract Protocol conversion is a critical issue requiring much research attention. In this paper, the protocol conversion methodology proposed originally by Green is extended with the Petri nets theory to study application layer protocol conversion among more than two interfaces. The click-to-fax (CTF) service based on the Internet intelligent network (IIN) model is taken as an example to illustrate the extended part. A two-step Petri net modelling method is proposed, which is easier compared to constructing the overall model directly in just one step. Universal coupling criteria of Petri net model of protocol conversion (PNPC) are abstracted. The PNPC of CTF service is analysed using analytical techniques of Petri nets, which are proved to be effective in finding and eliminating potential bugs. The necessity of the concept of service layer is also emphasized. Copyright © 2006 John Wiley & Sons, Ltd. [source]


The possible negative impacts of volunteer tourism

INTERNATIONAL JOURNAL OF TOURISM RESEARCH, Issue 6 2009
Daniel A. Guttentag
Abstract Volunteer tourism is an increasingly popular form of travel that is attracting growing research attention. Nevertheless, existing research has focused primarily on the benefits of volunteer tourism, and many studies have simply involved profiling volunteers or investigating their motivations. However, there are numerous possible negative impacts of volunteer tourism that deserve increased attention from both researchers and project managers: a neglect of locals' desires, a hindering of work progress and completion of unsatisfactory work, a disruption of local economies, a reinforcement of conceptualisations of the ,other' and rationalisations of poverty, and an instigation of cultural changes. Copyright © 2009 John Wiley & Sons, Ltd. [source]


International Regimes: The Case of Western Corporate Governance

INTERNATIONAL STUDIES REVIEW, Issue 2 2006
DAVID A. DETOMASI
Accounting and financial scandals of unprecedented scale have recently occurred in the United States, Europe, and elsewhere. Much of the cause for these scandals has been attributed to the poor corporate governance standards practiced by the offending companies, leading researchers to re-examine how corporate governance affects economic development. One topic receiving significant research attention has been whether national corporate governance systems are likely to converge, what form that convergence may take, and what barriers currently inhibit convergence. This essay argues that the tools of regime theory hold significant potential for helping to structure empirical inquiry into the process of corporate governance convergence. It then draws upon the recent experience of Western corporate governance systems to illustrate how a consensus on norms, values, and principles in the issue area of corporate governance is emerging. The essay concludes by drawing out the implications of the developing corporate governance regime for emerging market economies and the general topic of global governance. It also poses questions for continued empirical research in the area of corporate governance and international relations. [source]


Mortality of Parents of People with Intellectual Disabilities

JOURNAL OF APPLIED RESEARCH IN INTELLECTUAL DISABILITIES, Issue 1 2002
Andrew J. Hill-Smith
Background The experience of caring for a son or daughter with an intellectual disability has long been recognized as stressful. The long-term health costs for parents of people with intellectual disability have attracted some recent research attention, but mortality has not been studied. Methods The present authors examined mortality as measured by the standardized mortality ratio (SMR), and cause of death for parents of people with intellectual disability, identified through an intellectual disability register in Merton, south London. Results Although there was a trend for lower SMRs particularly for mothers, SMRs were not significantly different from unity. Subgroups of parents whose child was cared for predominantly in an institution, or in the family home were analysed and similarly showed no significant difference from unity. The same applied to cause of death analyses. Conclusions These findings offer some reassurance to parents of people with intellectual disability. There is an urgent need for further research in this area. [source]


Professionalism vs Commercialism: The Association Between Non-Audit Services (NAS) and Audit Independence

JOURNAL OF BUSINESS FINANCE & ACCOUNTING, Issue 5-6 2001
Divesh S. Sharma
The implications of the provision of NAS to audit clients on audit independence have attracted considerable regulatory and research attention. This study contributes to this topical issue by investigating the association between NAS and audit independence using actual fee data and a more appropriate context that enables a proper ex post assessment of the correctness of the auditor's opinion decision. The results are consistent with the notion that auditors exhibit low propensity to issue a going-concern qualification to clients generating higher proportions of NAS fees to total fees and raise independence implications regarding the joint provision of audit and NAS. [source]


Attitudes of mental health professionals about mental illness: a review of the recent literature

JOURNAL OF COMMUNITY PSYCHOLOGY, Issue 1 2010
Otto Wahl
A large body of research has documented public attitudes toward people with mental illness. The current attitudes of the people who provide services to those with psychiatric disorders are important to understand, as well. The authors review what studies over the past 5 years reveal about the attitudes of psychiatric professionals. Empirical studies of the attitudes of mental health professionals, published since 2004, were identified and reviewed. Only 19 such studies were found. Most of these studies revealed overall positive attitudes among mental health professionals. However, evidence of negative attitudes and expectations was also found, particularly with respect to social acceptance of people with mental illness. Results indicate a need for greater research attention to mental health professionals' views and for improved attitudes among caregivers. © 2009 Wiley Periodicals, Inc. [source]


Cognitive distortions in child sex offenders: An overview of theory, research & practice

JOURNAL OF FORENSIC NURSING, Issue 3 2008
Shruti Navathe BscHons
Abstract A great deal of clinical and research attention has been paid to understanding and explaining child sex offenders' social cognition. Cognitive distortions have been implicated as a core feature of child sex offenders' offense supportive cognition. The primary aim of this paper is to critically evaluate the phenomenon of cognitive distortions as currently understood with respect to child sex offenders: it reviews the theoretical and research literature and highlights the implications for clinical practice. [source]


New ideas and fertility limitation: The role of mass media

JOURNAL OF MARRIAGE AND FAMILY, Issue 5 2004
Jennifer S. Barber
This article investigates the mass media as a social change that shapes individual behavior primarily via ideational mechanisms. We construct a theoretical framework drawing on social demography and social psychology to explain how mass media may affect behavior via attitudinal change. Empirical analyses of 1,091 couples in the Chitwan Valley Family Study, using detailed measures of social change from rural Nepal, show that exposure to the mass media is related to childbearing behavior, and to preferences for smaller families, weaker son preferences, and tolerance of contraceptive use. This result should motivate greater research attention to the influence of changing ideas on behavioral changes, particularly in the study of families. [source]


The meaning of self-care for people with chronic illness

JOURNAL OF NURSING AND HEALTHCARE OF CHRONIC ILLNE SS: AN INTERNATIONAL INTERDISCIPLINARY JOURNAL, Issue 3 2010
Debbie Kralik RN
kralik d, price k & telford k (2010) Journal of Nursing and Healthcare of Chronic Illness2, 197,204 The meaning of self-care for people with chronic illness Aim., To reveal the meaning of self-care as described by men and women living with chronic conditions. Background., Chronic illness self-care and self-management are terms that have been used interchangeably in the literature. Self-care in the context of chronic illness has received some research attention, but remains an under-explored concept. Methods., Conversation data were gathered using longitudinal email groups facilitated by the first author over a 21-month period between 2003,2005, with 42 men and women living with chronic illness. Results., Self-care is a process of adaptation in response to learning about oneself and about ways to live well with illness. Developing capacity to self care impacted significantly on the way participants experienced illness, their view of themselves and of their future. Conclusions., People living with chronic illness describe the process of self-care as transformational in terms of feelings about their selves and reclaiming a sense of order. It enables them to move forward with a sense of the future. The primary health care principle of holistic assessment, taking account of the wider context of people's lives, is of heightened importance when educating about self-care. Relevance to clinical practice., Health care workers can assist people by acknowledging that chronic illness self-care is a process that gradually evolves and is borne out of listening to the person's priorities and finding ways for strategies to fit harmoniously alongside those priorities. [source]


Ambulatory monitoring and physical health report in Vietnam veterans with and without chronic posttraumatic stress disorder

JOURNAL OF TRAUMATIC STRESS, Issue 4 2003
Jean C. Beckham
Abstract This study investigated the associations among PTSD, ambulatory cardiovascular monitoring, and physical health self-reports in 117 male Vietnam combat veterans (61 with PTSD and 56 without PTSD). PTSD was associated with health symptoms and number of current health conditions beyond the influence of several covariates. PTSD was associated with greater systolic blood pressure variability, and an elevated percentage of heart rate and systolic blood pressure readings above baseline. Higher mean heart rate and an elevated percentage of heart rate above baseline were associated with physical health symptoms. None of the ambulatory monitoring variables mediated the association between PTSD and physical health outcomes. Findings suggest that the interrelationships among ambulatory autonomic responses, PTSD, and physical health deserve more research attention. [source]


The trade credit decision: evidence of UK firms

MANAGERIAL AND DECISION ECONOMICS, Issue 6-7 2003
Nam Sang Cheng
Trade credit finance and credit management are gradually gaining the research attention an area of such importance merits. One area, still far from resolved, is why trade credit is extended by non-financial firms to customers. This paper seeks to identify the generic forces behind the trade credit offer and to explore the empirical support for 20 propositions on credit motives derived from the literature and the implications of such motives to credit policies. The paper reports findings from a survey of senior finance officers involved in credit management in large UK companies. It assesses the degree to which theoretical explanations for granting trade credit are experienced in practice and whether observed differences attaching to credit motives among firms are associated with variations in credit policies and debtor days. The study found strong empirical support for seven propositions linked to competitiveness, pricing, investment and financing, and weaker support for a number of other theoretically-derived motives for trade credit extension. Factor analysis suggested a more insightful approach to classifying trade credit motives, covering investment in customers, customer's operating and financial benefits, supplier's marketing/operational benefits and market pressure to conform. In addition, two factors,customer relations and pricing flexibility,were extracted as motives for varying credit terms. Consistent with our hypothesis average debtor days were found to be significantly higher for those firms emphasising the financing, investment, and pricing flexibility propositions. These findings, and implications for future research, are explored. Copyright © 2003 John Wiley & Sons, Ltd. [source]


Networking in the workplace: Implications for women's career development

NEW DIRECTIONS FOR ADULT & CONTINUING EDUCATION, Issue 122 2009
Jia Wang
Although the value of social capital for organization and individual career success is widely recognized, gender as a moderator in the building of social capital in organizational settings has not received adequate research attention. This chapter looks at how professional women use one aspect of social capital,networks,to assist with their career progression. [source]


Collaboration in foundation grantor-grantee relationships

NONPROFIT MANAGEMENT & LEADERSHIP, Issue 1 2008
Kent D. Fairfield
Foundations take many forms and wield widespread influence within the nonprofit sector. One aspect of foundations that has received limited research attention is the relationship between the foundation and the grantee. Some authors have encouraged a reframing of this relationship to be more one of equals, where each party brings attributes valuable to the other and where collaboration can germinate and produce more effective philanthropy. This exploratory study suggests that the quality of these relationships varies widely and that it is often difficult to form collaborative ones. It identifies some of the earmarks of fruitful relationships and suggests some ways to replicate those successes. I hate foundation officers,they're all jerks! ,Experienced nonprofit executive We care about these [nonprofit] organizations,it is through them that we do our work. ,Senior foundation program officer [source]


Personality disorder scale predictors of depression stability over time as a partial function of mental health history

PERSONALITY AND MENTAL HEALTH, Issue 4 2009
Alan R. King
The high comorbidity of personality disturbance and psychiatric symptomatology has been well established. Diagnostic and Statistical Manual-IV (DSM-IV) personality disorder symptom clusters often represent aberrant, intense and labile emotional reactions to stressors. The role of personality disorder traits on the variability of depression symptoms as expressed over time, however, has gained relatively little research attention. The presence and number of personality disorder diagnoses have been associated with earlier depression onset and less favourable treatment outcomes suggesting that this form of mood disturbance may be more durable over time when associated with Axis II features. The present study examined Beck Depression Inventory (BDI) temporal stability as a function of Millon Clinical Multiaxial Inventory (MCMI-II) personality disorder base rate scores among 406 college students with and without reported histories of significant mental health concerns. Instability of BDI scores across time was shown to be predicted (r = 0.15) by selected personality disorderscale dimensions (antisocial, self-defeating, borderline and total number of MCMI-II personality disorder elevations). BDI reliability did drop significantly among participants reporting a mental health treatment history and multiple personality disorder elevations. Gender differences were not found in the strength of these bivariate correlations. Women generated smaller BDI absolute differences than men. While BDI test,retest reliability was only linked modestly to personality disorder attributes in this college sample, further study may be warranted to evaluate similar relationships within a clinical sample. Copyright © 2009 John Wiley & Sons, Ltd. [source]


The effect of lanthanum oxide (La2O3) on the structure and crystallization of poly(vinylidene fluoride)

POLYMER INTERNATIONAL, Issue 7 2010
Jianbin Song
Abstract Rare earth polymers, due to their excellent luminescence, fluorescence, laser protective, optical and magnetic properties, have attracted much research attention in recent years. However, little attention has been paid to the effect of rare earths on the structure and crystallization of polymers, which is of important significance in the development of functional polymers. X-ray diffraction and differential scanning calorimetry were used to investigate the structure and crystallization behavior of a poly(vinylidene fluoride) (PVDF)/lanthanum oxide (La2O3) composite. The results showed that the degree of perfection, crystal size, crystallization rate and isothermal crystallization activation energy of PVDF in the composite decreased, compared with pure PVDF. The spherulite nucleation and growth for PVDF and PVDF composite were analyzed in detail using the Lauritzen-Hoffman equation. The modified Avrami equation and the Mo equation were used to study the non-isothermal crystallization kinetics. The addition of La2O3 did not change the crystal structure and nucleation process for PVDF, but it decreased markedly the crystal growth rate and led to the formation of unstable crystals. This was attributed to the fact that too much La2O3 prevented PVDF molecular chains from moving and arranging in an orderly manner into crystals. Copyright © 2010 Society of Chemical Industry [source]


Operations Risk Management: Overview of Paul Kleindorfer's Contributions

PRODUCTION AND OPERATIONS MANAGEMENT, Issue 5 2007
Morris A. Cohen
This paper reviews Paul Kleindorfer's contributions to Operations Management (OM), with a special focus on his research on risk management. An annotated bibliography of selected other contributions reviews the breadth of topics that have occupied Kleindorfer's research attention over his now 45 + years of research. These include optimal control theory, scheduling theory, decision sciences, investment planning and peak load pricing, plus a number of important applications in network industries and insurance. In the area of operations risk management, we review recent work that Kleindorfer and his colleagues in the Wharton Risk Center have undertaken on environmental management and operations, focusing on process safety and environmental risks in the chemical industry. This work is directly related to Kleindorfer's work in the broader area of "sustainable operations", which he, Kal Singhal and Luk Van Wassenhove recently surveyed as part of the new initiative at POMS to encompass sustainable management practices within the POMS community. Continuing in the area of supply chain risks, the paper reviews Kleindorfer's contributions to the development of an integrated framework for contracting and risk hedging for supply management. The emphasis on alignment of pricing, performance and risk management in this framework is presaged in the work undertaken by Kleindorfer and his co-authors in the 1980s on after-sales support services for high-technology products. This work on supply chain risk, and its successors, is reviewed here in light of its growing importance in managing the unbundled and global supply chains characteristic of the new economy. [source]


The structural and functional diversity of Hsp70 proteins from Plasmodium falciparum

PROTEIN SCIENCE, Issue 9 2007
Addmore Shonhai
Abstract It is becoming increasingly apparent that heat shock proteins play an important role in the survival of Plasmodium falciparum against temperature changes associated with its passage from the cold-blooded mosquito vector to the warm-blooded human host. Interest in understanding the possible role of P. falciparum Hsp70s in the life cycle of the parasite has led to the identification of six HSP70 genes. Although most research attention has focused primarily on one of the cytosolic Hsp70s (PfHsp70-1) and its endoplasmic reticulum homolog (PfHsp70-2), further functional insights could be inferred from the structural motifs exhibited by the rest of the Hsp70 family members of P. falciparum. There is increasing evidence that suggests that PfHsp70-1 could play an important role in the life cycle of P. falciparum both as a chaperone and immunogen. In addition, P. falciparum Hsp70s and Hsp40 partners are implicated in the intracellular and extracellular trafficking of proteins. This review summarizes data emerging from studies on the chaperone role of P. falciparum Hsp70s, taking advantage of inferences gleaned from their structures and information on their cellular localization. The possible associations between P. falciparum Hsp70s with their cochaperone partners as well as other chaperones and proteins are discussed. [source]


Brand-self identity narratives in the James Bond movies

PSYCHOLOGY & MARKETING, Issue 6 2010
Holly Cooper
Consumers learn to attach social and contextual meaning to products and brands through observing the character relationships with particular objects or specific brands in the archetypal stories in film on "the big screen" (cinema). Luxury brands become objects of desire, fueling consumer aspirations and giving consumers frames of reference in their own consumption ideals. However, substantial research attention to the brand narratives that popular culture portrays has yet to emerge. This paper therefore presents a textual analysis of the brand narratives evident within popular culture, specifically in the context of James Bond films. In taking this interpretive approach, this article identifies three different and contrasting brand-self narratives that reinforce a particular archetypal myth of a lover, hero, or outlaw. © 2010 Wiley Periodicals, Inc. [source]


Determinants of internet auction success and closing price: An exploratory study

PSYCHOLOGY & MARKETING, Issue 6 2003
James H. Gilkeson
Although auctions have been examined extensively in economics, and to some degree in marketing, on-line auctions are only beginning to receive research attention. Further, in both economics and marketing the research on auctions has relied primarily on rational, economic theories. This article investigates how particular on-line auction features impact two important outcomes: auction success and final closing price. Traditional economic theories as well as theories from marketing and psychology are employed to provide a broader picture of on-line auctions. Specifically, several key factors related to auction success and closing price for four types of sterling flatware in an on-line auction site (eBay) are examined. The findings show that, across all four piece types, a reserve auction format, the relative opening price, and the number of bids unexplained by a low or high opening price are associated with both auction success and final closing price. © 2003 Wiley Periodicals, Inc. [source]


Effects of stress and social support on postpartum health of Chinese mothers in the United States,

RESEARCH IN NURSING & HEALTH, Issue 6 2009
Ching-Yu Cheng
Abstract Postpartum maternal well being across cultures has received limited research attention. We examined relationships among stress, social support, and health in 152 Chinese mothers <1 year postpartum in the United States. These mothers did not perceive high levels of stress, although they did not receive as much support as they indicated they needed; 23.7% of mothers scored high for depressive symptoms. About half of the mothers experienced interrupted sleep, decrease in memory, and lack of sexual desire. All health measures were inter-correlated. Social support moderated the effects of stress on depressive symptoms. Culturally relevant care that is perceived as supportive may promote postpartum maternal health. © 2009 Wiley Periodicals, Inc. Res Nurs Health 32:582,591, 2009 [source]


Personality in nonhuman primates: a review and evaluation of past research

AMERICAN JOURNAL OF PRIMATOLOGY, Issue 8 2010
Hani D. Freeman
Abstract Scientific reports of personality in nonhuman primates are now appearing with increasing frequency across a wide range of disciplines, including psychology, anthropology, endocrinology, and zoo management. To identify general patterns of research and summarize the major findings to date, we present a comprehensive review of the literature, allowing us to pinpoint the major gaps in knowledge and determine what research challenges lay ahead. An exhaustive search of five scientific databases identified 210 relevant research reports. These articles began to appear in the 1930s, but it was not until the 1980s that research on primate personality began to gather pace, with more than 100 articles published in the last decade. Our analyses of the literature indicate that some domains (e.g., sex, age, rearing conditions) are more evenly represented in the literature than are others (e.g., species, research location). Studies examining personality structure (e.g., with factor analysis) have identified personality dimensions that can be divided into 14 broad categories, with Sociability, Confidence/Aggression, and Fearfulness receiving the most research attention. Analyses of the findings pertaining to inter-rater agreement, internal consistency, test,retest reliability, generally support not only the reliability of primate personality ratings scales but also point to the need for more psychometric studies and greater consistency in how the analyses are reported. When measured at the level of broad dimensions, Extraversion and Dominance generally demonstrated the highest levels of inter-rater reliability, with weaker findings for the dimensions of Agreeableness, Emotionality, and Conscientiousness. Few studies provided data with regard to convergent and discriminant validity; Excitability and Dominance demonstrated the strongest validity coefficients when validated against relevant behavioral criterion measures. Overall, the validity data present a somewhat mixed picture, suggesting that high levels of validity are attainable, but by no means guaranteed. Discussion focuses on delineating major theoretical and empirical questions facing research and practice in primate personality. Am. J. Primatol. 72:653,671, 2010. © 2010 Wiley-Liss, Inc. [source]