bluuebunny/crossref_metadata_2025 huggingface dataset:
How implementation of bibliometric practice affects the role of academic libraries
Authors: Åström Fredrik , Hansson Joacim
Published: September 2012

This article discusses potential consequences of implementing bibliometrics as an institutionalized practice in academic libraries. Results are reported from a survey among libraries in Sweden with organized bibliometric activities. Incorporating bibliometric activities is one way of redefining and widening the role of the library. Implementation of bibliometric practice is motivated by ambitions to provide more complete scholarly communication-related services, as well as to increase the visibility and status of libraries. Underlying reasons are professional competencies such as metadata and bibliographic database management; and bibliometrics being strong within library and information science. Incorporating bibliometrics in academic libraries is also seen as a way of widening the professional profile of librarianship. The new role should, however, also be considered from the viewpoint of potential changes in how academic libraries are perceived when incorporating a monitoring function through bibliometric analyses of research performance in addition to traditional service-oriented functions.
Creating Professional ePortfolios in Technical Writing
Authors: Bacabac Florence Elizabeth
Published: September 2012

This article highlights the creation of professional electronic portfolios (eportfolios) in an upper-division technical writing course (Writing for Interactive Media) so that students can profile their work. This application emphasizes the professional aspect of eportfolios in order to help students develop multiple literacies as they transition into the job market. The author proposes administering a four-part assignment series that leads to the production of a professional eportfolio: (a) proposal, (b) design document, (c) script, and (d) professional eportfolio. Following each assignment, she discusses its limitations and assessment criteria.
Cracking the Case
Authors: Thondhlana Juliet , Smith Ann F.V.
Published: September 2012

Research has noted an increase in the use of assessed group projects across disciplines in institutions of higher learning. Consequently, this study investigates the prompt for an assessed group case-study project in a sophomore business module in order to provide lecturers with tools and techniques for probing a prompt document. The authors use a task-analysis framework developed for task-based language teaching to examine the project’s requirements and chain of integrated tasks. The study shows that the project prompt was dense and complicated and the component tasks were highly interactive and complex. Further, the study reveals that group case-study projects can play an important role in developing the team skills needed for future real-life projects.
Analysis of the Interactive Relationship Between Apology and Product Involvement in Crisis Communication
Authors: Choi Jinbong , Chung Wonjun
Published: September 2012

This study explores the interactive relationship between apology, as a crisis-response strategy used in the current Toyota recall crisis, and product involvement in influencing the restoration of the organization’s reputation and customers’ future purchase intentions. The authors measured the impact of the interaction between participants’ perception of an apology and their product-involvement levels using a 2 (perception of apology: high sincerity vs. low sincerity) × 2 (product involvement: high vs. low) experiment design. The results showed that an apology was an effective strategy for repairing the organization’s reputation for those participants who were highly involved and perceived the strategy as highly sincere, but it did not increase their purchase intentions.
Using FarmVille in an Introductory Managerial Accounting Course to Engage Students, Enhance Comprehension, and Develop Social Networking Skills
Authors: Krom Cynthia L.
Published: September 2012

This article explores the use of the free Zynga computer game FarmVille, which is played in conjunction with Facebook®, to facilitate active learning in a managerial accounting course. Results indicate that it invokes an improved understanding of the accounting content, particularly among nonaccounting majors; a high level of student satisfaction with the assignment; and excellent outcomes in developing peer-to-peer and faculty–student relationships. This innovative approach is offered as an alternative way to achieve managerial accounting learning objectives. Its greatest strength is the social networking benefits it brings.
The Relationship Between Perceived Organizational Support and Affective Commitment
Authors: Marique Géraldine , Stinglhamber Florence , Desmette Donatienne , Caesens Gaëtane , De Zanet Fabrice
Published: September 2012

The present research examines how the social identity perspective contributes to a better understanding of the relationships between perceived organizational support, affective commitment, and employees’ performance at work. Using a sample of 253 employees from an engineering company, Study 1 found that organizational identification partially mediates the relationship between perceived organizational support and affective commitment. The results of Study 1 also indicated that the relationship between perceived organizational support and organizational identification is moderated by organizational prestige. In Study 2, using a sample of 179 postal employees, the authors replicated the mediating role of organizational identification in the relationship between perceived organizational support and affective commitment and found that affective commitment mediates the relationship between organizational identification and supervisor’s ratings of extra-role performance.
Primary Breast Amyloidosis Presenting Solely as Nonpalpable Microcalcifications
Authors: Ngendahayo Placide , Faverly Daniel , Hérin Michel
Published: September 2012

Primary breast amyloidosis is a rare disease and usually occurs as unilateral or bilateral palpable masses. Primary breast amyloidosis presenting solely as microcalcifications is extremely rare. The authors report a case of a 73-year-old woman with persistent suspicious microcalcifications without palpable mass. The diagnosis was established by the presence of an amorphous and eosinophilic material that was positive for Congo red and dichroic under polarized light. Paraffin immunohistochemistry revealed the presence of kappa light chains (AL-type amyloidosis). The amyloid deposits were associated with microcalcifications. A complete work up was performed to exclude other localisations or associated pathologies and was negative. The primary breast amyloidosis is discussed and a review of the literature is presented.
The Intolerance of Uncertainty Scale
Authors: Fergus Thomas A. , Wu Kevin D.
Published: September 2012

Although it is understood that assessment tools require evaluation using diverse samples, such evaluations are relatively rare. There are obstacles to such work, but it remains important to pursue psychometric data in broad samples. As such, we evaluated measurement invariance and population heterogeneity of two versions of a widely used measure in the anxiety literature—the Intolerance of Uncertainty Scale (IUS)—among self-identifying White ( N = 1,185) and Black ( N = 301) students. Data from multiple-groups confirmatory factor analysis supported the equivalence of the equal form and factor loadings of both IUS versions in White and Black respondents. However, specific IUS items functioned differently in the two groups, with more IUS items appearing biased in the full-length relative to the short-form version. Correlations between IUS factors and worry were equivalent among White and Black respondents. We discuss the implications of these results for future research.
Open Science
Authors: Grand Ann , Wilkinson Clare , Bultitude Karen , Winfield Alan F. T.
Published: September 2012

The emerging practice of open science, which makes the entire process of a scientific investigation available, could extend membership of the research community to new, public audiences, who do not have access to science’s long-established trust mechanisms. This commentary considers if the structures that enable scientists to trust each other, and the public to trust scientists, are enriched by the open science approach. The completeness of information provided by open science, whether as a replacement for or complement to older systems for establishing trust within science, makes it a potentially useful “trust technology.”
Stress analysis of two kinds of dissimilar isotropic sectors
Authors: Faal Reza Teymoori , Pasrad Alireza
Published: September 2012

Anti-plane stress analysis of two different kinds of dissimilar sectors has been accomplished in our study. The first kind of dissimilar sectors consists of two isotropic sectors perfectly attached to each other along their circular edges. In the second kind, these isotropic sectors are joined perfectly in the radial interface. Solutions to the differential equations governing the dissimilar sector are found by utilizing finite Fourier cosine transform as well as the technique of the separation of variables. The closed-form solutions are obtained for the displacement and stress fields in each sector. Also the geometric and force singularities of the stress fields are studied and compared with those in the past research. In the special case, i.e. finite wedges, the results for the stress fields are in complete agreement with those in the literature.
Can equations of equilibrium predict all physical equilibria? A case study from Field Dislocation Mechanics
Authors: Das Amit , Acharya Amit , Zimmer Johannes , Matthies Karsten
Published: September 2012

Numerical solutions of a one-dimensional model of screw dislocation walls (twist boundaries) are explored. The model is an exact reduction of the three-dimensional system of partial differential equations of Field Dislocation Mechanics. It shares features of both Ginzburg–Landau (GL)-type gradient flow equations and hyperbolic conservation laws, but is qualitatively different from both. We demonstrate such similarities and differences in an effort to understand the equation through simulation. A primary result is the existence of spatially non-periodic, extremely slowly evolving (quasi-equilibrium) cell-wall dislocation microstructures practically indistinguishable from equilibria, which however cannot be solutions to the equilibrium equations of the model, a feature shared with certain types of GL equations. However, we show that the class of quasi-equilibria comprising a spatially non-periodic microstructure consisting of fronts is larger than that of the GL equations associated with the energy of the model. In addition, under applied strain-controlled loading, a single dislocation wall is shown to be capable of moving as a localized entity, as expected in a physical model of dislocation dynamics, in contrast to the associated GL equations. The collective evolution of the quasi-equilibrium cell-wall microstructure exhibits a yielding-type behavior as bulk plasticity ensues, and the effective stress–strain response under loading is found to be rate-dependent. The numerical scheme employed is non-conventional, since wave-type behavior has to be accounted for, and interesting features of two different schemes are discussed. Interestingly, a stable scheme conjectured by us to produce a non-physical result in the present context nevertheless suggests a modified continuum model that appears to incorporate apparent intermittency.
Residually stressed beams
Authors: Longa Luca Della , Freddi Lorenzo , Londero Alessandro , Paroni Roberto
Published: September 2012

In this paper we derive a theory for a linearly elastic residually stressed rod through an asymptotic analysis based on Γ-convergence.
Autoparallel curves and Riemannian geodesics for materially uniform but inhomogeneous bodies
Authors: Sfyris Dimitris
Published: September 2012

According to the theory of materially uniform but inhomogeneous bodies two geometric structures can be defined on the body manifold when a uniform reference is known. The first is given by the material connection and the second by the intrinsic Riemannian metric. Two important classes of curves related with these structures are the geodesic and the autoparallel curves. The goal of the present contribution is to define and characterize mechanically these kind of curves for materially uniform but inhomogeneous bodies. We propose the use of these curves for constructing the stress-free non-Euclidean material manifold that plays the role of the reference configuration for the dislocated problem. A generic scheme for the construction of this manifold based on geodesics/autoparallel curves is given as well as a discussion related with the field of internal stresses. Attention is then focused on a continuous distribution of edge dislocations. We solve numerically the geodesic equation that corresponds to a solid body with a continuous symmetry group. By using the [Formula: see text] norm for the dislocation density tensor we conclude that the higher the dislocation density the greater the deviation from the straight line is. For the same distribution of dislocations, but for a solid body with a discrete symmetry group, we solve analytically the autoparallel curves.
Future Research Directions in Sleep and ADHD
Authors: Owens Judith , Gruber Reut , Brown Thomas , Corkum Penny , Cortese Samuele , O’Brien Louise , Stein Mark , Weiss Margaret
Published: September 2012

Objective: To explore relationships between basic and translational science research regarding sleep and ADHD in children. Method: A multidisciplinary group of experts in pediatric sleep medicine and ADHD convened in November 2010 to summarize the current literature, delineate knowledge gaps, and formulate recommendations regarding future research directions and priorities. Results: Six major research areas of interest were identified: (a) brain centers regulating sleep, arousal, and attention; (b) neurotransmitter systems involved in both sleep and attention regulation; (c) alterations of neural systems regulating sleep in ADHD; (d) phenotypic similarities between behavioral, mood, and cognitive manifestations of insufficient/disrupted sleep and ADHD; (e) hypoarousal and sleepiness in ADHD; and (f) external sleep–wake signals that affect sleep regulation in ADHD. Conclusion: An enhanced understanding of the complex mechanisms regulating sleep promotion, wakefulness, and attention may contribute to new insights regarding the core impairments in ADHD and lead to the development of new therapies.
The Use of Trial-Based Functional Analysis in Public School Classrooms for Two Students With Developmental Disabilities
Authors: Rispoli Mandy J. , Davis Heather S. , Goodwyn Fara D. , Camargo Síglia
Published: September 2012

Analogue functional analyses are a well-researched means of determining behavioral function in research and clinical contexts. However, conducting analogue functional analyses in school settings can be problematic and may lead to inconclusive results. The purpose of this study was to compare the results of a trial-based functional analysis with analogue functional analysis conducted within public school classrooms. Two individuals with developmental disabilities participated. Trial-based functional analyses produced clear behavioral functions for both participants, whereas analogue functional analysis results were inconclusive. Implications for practice and future research are presented.
Xenotransfusion with canine blood in the feline species: review of the literature
Authors: Bovens Catherine , Gruffydd-Jones Tim
Published: September 2012

Xenotransfusion (the transfusion of blood from another species) of canine blood to cats has been historically performed commonly and is still performed nowadays in some countries. Considering the current lack of commercial availability of haemoglobin-based oxygen carrier solution (Oxyglobin), there may be rare occasions when treating an anaemic cat when compatible feline blood cannot be obtained, and where a transfusion with canine blood may need to be considered as a life-saving procedure. This article reviews the published evidence about feline xenotransfusion with canine blood and the results that can be expected with this procedure. Published evidence in a limited number of cases (62 cats) indicates that cats do not appear to have naturally-occurring antibodies against canine red blood cell antigens: compatibility tests prior to the first transfusion did not demonstrate any evidence of agglutination or haemolysis of canine red cells in feline serum or plasma. No severe acute adverse reactions have been reported in cats receiving a single transfusion with canine whole blood. Anaemic cats receiving canine blood are reported to improve clinically within hours. However, antibodies against canine red blood cells are produced rapidly and can be detected within 4–7 days of the transfusion, leading to the destruction of the transfused canine red cells in a delayed haemolytic reaction. The average lifespan of the transfused canine red cells is less than 4 days. Any repeated transfusion with canine blood later than 4–6 days after the first transfusion causes anaphylaxis, which is frequently fatal.
Executive deficits in early onset bipolar disorder versus ADHD: Impact of processing speed and lifetime psychosis
Authors: Udal Anne Helseth , Øygarden Bjørg , Egeland Jens , Malt Ulrik Fredrik , Løvdahl Hans , Pripp Are Hugo , Grøholt Berit
Published: September 2012

Executive deficits are reported in both early onset bipolar disorder (BD) and attention-deficit hyperactivity disorder (ADHD), and controversies regarding comorbidity and symptom overlap have complicated the research on executive function in BD. Reports of the negative impact of executive difficulties on academic functioning indicate a need for a greater focus on executive difficulties in early onset psychiatric disorders. Executive function and processing speed in youths with BD ( n = 4), ADHD ( n = 26) and BD + ADHD ( n = 13) were compared with controls ( n = 69). All clinical groups demonstrated executive impairment. The combined group was most impaired. There were no significant differences between the groups. Executive deficit in the BD group was associated with a history of psychotic symptoms. The BD-nonpsychotic group was impaired only with regard to processing speed. Processing speed adjustment improved working memory and normalized interference control in both BD and ADHD. Conclusion: executive deficits in BD may be determined by a history of psychotic symptoms rather than by comorbid ADHD. Some aspects of executive problems appear speed-related.
Communication in multiplayer gaming: Examining player responses to gender cues
Authors: Kuznekoff Jeffrey H. , Rose Lindsey M.
Published: September 2012

The goal of this study is to determine how gamers’ reactions to male voices differ from reactions to female voices. The authors conducted an observational study with an experimental design to play in and record multiplayer matches ( N = 245) of a video game. The researchers played against 1,660 unique gamers and broadcasted pre-recorded audio clips of either a man or a woman speaking. Gamers’ reactions were digitally recorded, capturing what was said and heard during the game. Independent coders were used to conduct a quantitative content analysis of game data. Findings indicate that, on average, the female voice received three times as many negative comments as the male voice or no voice. In addition, the female voice received more queries and more messages from other gamers than the male voice or no voice.
Ignored, uninterested, and the blame game: How The New York Times, Marketplace, and TheStreet distanced themselves from preventing the 2007–2009 financial crisis
Authors: Usher Nikki
Published: September 2012

This article relies on interviews with business journalists at The New York Times, Marketplace public radio, and TheStreet to understand how journalists retrospectively considered their responsibilities following the 2007–2009 financial crisis. Watchdog journalism is looked at through a variety of scholarly perspectives to understand the disconnect between theory and practice as journalists across all these outlets distance themselves from the events leading up to the crisis. This article provides the first account of how business journalists in the USA responded to the crisis, and the data suggest two important concerns: the first, a serious lack of media accountability; the second, the need for clearer normative expectations for watchdog journalism.
潜移默化 – Implicit learning and imperceptible influence: Syncretic literacy of multilingual Chinese children
Authors: Curdt-Christiansen Xiao Lan
Published: September 2012

This article reports on an ethnographic study involving the literacy practices of two multilingual Chinese children from two similar yet different cultural and linguistic contexts: Montreal and Singapore. Using syncretism as a theoretical tool, this inquiry examines how family environment and support facilitate children’s process of becoming literate in multiple languages. Informed by sociocultural theory, the inquiry looks in particular at the role of grandparents in the syncretic literacy practices of children. Through comparative analysis, the study reveals similarities and differences that, when considered together, contribute to our understanding of multilingual children’s creative forms of learning with regard to their rich literacy resources in multiple languages, the imperceptible influences of mediators, various learning styles and syncretic literacy practices.
Investigating the relationships between loneliness and learning burnout
Authors: Lin Shu-Hui , Huang Yun-Chen
Published: September 2012

Loneliness is a common problem for many students. Research indicates that loneliness is associated with relatively poor physical health and depression among students. Burnout in students is also an important issue since it adversely affects students’ learning as well as their health and well-being. Both loneliness and learning burnout are related to negative psychological health, and there might exist a relationship between them. This study is to understand the current situation of students’ loneliness and learning burnout and further to explore the relationships between the two. The ‘Loneliness Scale’ and ‘Learning Burnout Scale’ are used as research tools, and data from 1788 students were collected. Statistical Package for the Social Sciences software was utilized to analyze the data, and the major findings shed light on whether there are differences between males and females with regard to experiencing higher loneliness and learning burnout symptoms. Results also show the relationship of the level of student loneliness and its correlation or otherwise with factors of learning burnout such as low sense of achievement and negative learning emotion.
Counting the homeless: the culture of quantification in American social policy
Authors: Jocoy Christine L
Published: September 2012

This commentary reflects on the practice of counting the homeless within political jurisdictions (i.e., homeless counts) within the United States to satisfy a cultural practice of quantification within American social policy. It discusses the problems arising from the cultural preference for quantification as the means of identifying and addressing a social problem with specific examples from US homeless assistance programs and participant observation in Long Beach, California. The culture of quantification is apparent in explanations for why counts are done, the disproportionate attention paid to measurement methods over reflection on interpretation of and responses to the numbers, and the general failure to effectively link the practice of counting to the causes of and solutions to homelessness. This focus diverts attention from real data needs and effective interpretation of data, consumes resources better used elsewhere, and generates among well-meaning people, particularly count volunteers, a false sense that they are addressing a problem simply by quantifying it. The commentary concludes with suggestions for examining how counts are actually used in modifying existing programs to evaluate the effectiveness of these quantification practices.
Integrating Health Literacy and ESL
Authors: Soto Mas Francisco , Mein Erika , Fuentes Brenda , Thatcher Barry , Balcázar Héctor
Published: September 2012

Adult Hispanic immigrants are at a greater risk of experiencing the negative outcomes related to low health literacy, as they confront cultural and language barriers to the complex and predominately monolingual English-based U.S. health system. One approach that has the potential for simultaneously addressing the health, literacy, and language needs of Hispanics is the combination of health literacy and English as a second language (ESL) instruction. The purpose of the project was to evaluate the feasibility of using ESL instruction as a medium for improving health literacy among Hispanic immigrants. Objectives included the development, implementation, and evaluation of an interdisciplinary health literacy/ESL curriculum that integrates theories of health literacy and health behavior research and practice, sociocultural theories of literacy and communication, and adult learning principles. This article describes the curriculum development process and provides preliminary qualitative data on learners’ experiences with the curriculum. Results indicate that the curriculum was attractive to participants and that they were highly satisfied with both the format and content. The curriculum described here represents one example of an audience-centered approach designed to meet the specific health and literacy needs of the Hispanic population on the U.S.–Mexico border. The combination of ESL and health literacy contributed to a perceived positive learning experience among participants. Interdisciplinary approaches to health literacy are recommended.
The Relationship Between Local Public Health Agency Characteristics and Performance of Partnership-Related Essential Public Health Services
Authors: Downey Laura Hall , Thomas William A. , Gaddam Rakash , Scutchfield F. Douglas
Published: September 2012

Objective. The relationships between characteristics of local public health agencies and their self-reported scores on partnership-related indicators of the Ten Essential Public Health Services were examined. Design. A retrospective cross-sectional study using secondary data from the National Public Health Performance Standards Program (NPHPSP) and the 2005 Profile of Local Public Health Agencies from the National Association of City and County Health Organizations (NACCHO) was completed. Participants. Local public health systems that participated in both the NPHPSP and the NACCHO surveys. Main outcome measures. Partnership-related elements from the NPHPSP data set were used as dependent variables, whereas combined focused elements from the NPHPSP and the NACCHO surveys served as independent variables. Results. Local public health agencies’ increase in partnerships over the preceding 3 years and involvement in a community health improvement process were significantly related to numerous partnership performance scores—more so than other agency characteristics. Involvement in the Mobilizing Action through Planning and Partnerships process was inversely related to some partnership performance scores. Conclusions. Future research must continue to identify and explore additional community- and agency-level predictors of partnership performance.
Lessons Learned From Exploratory Research About Viral Hepatitis
Authors: Jorgensen Cynthia M. , Carnes C. Amanda
Published: September 2012

The Centers for Disease Control and Prevention conducted exploratory research as part of planning a national education campaign to raise awareness about viral hepatitis in the United States. The purpose of this qualitative research was to assess the baseline knowledge, attitudes, and screening behaviors of four population groups. Sixteen focus groups were conducted during a 6-week period in the fall of 2009, with a total of 119 adults aged 35 to 60 years in Boston, Massachusetts; Chicago, Illinois; and Houston, Texas. The groups were stratified by Asian Americans, African Americans, gay or bisexual men, and general population. Group size ranged from three to nine participants, and each session was approximately 90 minutes in length. Both awareness and knowledge of viral hepatitis were low among all participants, including those at increased risk for the disease. Little was known about the different types of hepatitis, risk factors, or how the viruses are transmitted. Regarding the last, many indicated that the disease was airborne. In addition, participants incorrectly assumed that if they had viral hepatitis, they would have symptoms and know they were infected. Many participants also believed that they had been tested for the disease since their health care providers routinely “test their blood.” The findings indicate that significant and concerted educational efforts are needed to improve basic knowledge of viral hepatitis, as well as knowledge about transmission, risk factors, screening, and treatment. As a result, a general awareness and education campaign must precede and support efforts to encourage screening.
Evaluation Framework for Translational Research
Authors: O’Hara Blythe J. , Bauman Adrian E. , Eakin Elizabeth G. , King Lesley , Haas Marion , Allman-Farinelli Margaret , Owen Neville , Cardona-Morell Magnolia , Farrell Louise , Milat Andrew J. , Phongsavan Philayrath
Published: September 2012

The Get Healthy Information and Coaching Service® (GHS), a free government-funded telephone-delivered information and coaching service was launched in February 2009 by the Australian New South Wales state government. It represents the translation of research evidence applied in the real world (T4 or Phase 4 translation), aimed at addressing the modifiable risk factors associated with the overweight and obesity. In controlled settings, it has been established that telephone-based lifestyle counseling programs are efficacious in reducing anthropometric and behavioral risk factors. This article presents the GHS case study as a population-wide intervention and describes the quasi-experimental evaluation framework used to evaluate both the process (statewide implementation) and impact (effectiveness) of the GHS in a real-world environment. It details the data collection, measures, and statistical analysis required in assessing the process of implementation—reach and recruitment, marketing and promotion, service satisfaction, intervention fidelity, and GHS setting up and operations costs—and in assessing the impact of GHS—increasing physical activity, improving dietary practices, and reducing body weight and waist circumference. The comprehensive evaluation framework designed for the GHS provides a method for building effectiveness evidence of a rare translation of efficacy trial evidence into population-wide practice.
Coaching Communication Partners
Authors: Bartolotta Theresa E. , Remshifski Patricia A.
Published: September 2012

Rett syndrome (RTT) occurs primarily in females and is characterized by deficits in cognition, communication, hand use and ambulation. This quasi-experimental study explored the use of a coaching program to increase communicative interactions between girls with RTT and their communication partners. Communication coaching strategies were provided to adults who worked with four girls with RTT during mealtime in their classrooms. Data analysis revealed that the number of bids for communication increased over time for all girls with RTT. Feeders waited longer for girls to respond, used fewer conversational fillers and responded to the girls’ behaviors as if they were intentional. These observations suggest communication coaching may be a valuable tool clinicians can use to enrich communicative interactions in the classroom for these individuals with severe communication impairments. Limitations and suggestions for further research are discussed.
9.11 in Sweden
Authors: Lagerkvist Amanda
Published: September 2012

During the ten years that have passed since the mediated terrorist attacks in the United States on 9.11, 2001, they have become—through instant historicization as well as endless repetitions—stable points of reference for transnational collective memory. Focalizing the anniversaries of September 11, 2002 and 2011, on Swedish television, this article pursues how the medium annually commemorates the tragedy. Fusing television research with memory studies, the argument is that we may approach the anniversaries as an electronic “lieu de mémorie”: a material-symbolic space reappropriated annually as media become vehicles for “working through” in commemoration, mourning, debate, and critique. Despite the fragmentation of both television and collective memory in the context of digitalization, on the anniversaries, Swedish television promotes itself as a central “nucleus” for connectivity offering viewers a return to the traumatic site— to the television set—while interpellating them as a “global we,” of media witnesses.
From Alzheimer's Disease Retrogenesis
Authors: Venturelli Massimo , Magalini Alessandra , Scarsini Renato , Schena Federico
Published: September 2012

There is evidence that exercise may reduce the progressive cognitive dysfunction of Alzheimer's disease (AD). However, no previous investigation has studiethe acute effects of adapted games (AG) on patients with AD. The aim of this study was to examine the acute effects of AG on the agitated behavior (rating scale Agitated Behavior Rating Scale [ABRS]) and cognitive performance (Test for Severe Impairment [TSI]) of patients with advanced dementia. Twenty patients (83±4 yrs) participated in AG and placebo activities (PL). Agitated behavior and cognitive performance were compared before and after 30 minutes of AG and PL. In the hour after the AG, agitated behavior decreased by ∼4 ABRS points and cognitive performance increased by ∼5 TSI points. On the contrary, after PL we found no change in agitated behavior or cognitive performance. Our data indicate that AG can momentarily reduce agitated behavior and increase the cognitive performance in participants with AD.
The Effects of Different Attentional Demands in the Identification of Emotional Facial Expressions in Alzheimer’s Disease
Authors: García-Rodríguez Beatriz , Vincent Clarissa , Casares-Guillén Carmen , Ellgring Heiner , Frank Ana
Published: September 2012

Alzheimer’s disease (AD) is characterized by the progressive impairment of mental and emotional functions, including the processing of emotional facial expression (EFE). Deficits in decoding EFE are relevant in social contexts in which information from 2 or more sources may be processed simultaneously. To assess the role of contextual stimuli on EFE processing in AD, we analyzed the ability of patients with AD and healthy elderly adults to identify EFE when simultaneously performing another task. Each of the 6 basic EFEs was presented to 15 patients with AD and 35 controls in a dual task paradigm that is in parallel with a visuospatial or a semantic task. Results show that the decoding of EFEs was impaired in patients with AD when they were simultaneously processing additional visuospatial information, yet not when they were performed in conjunction with a semantic task. These findings suggest that the capacity to interpret emotional states is impaired in AD.
Measurement Properties of DIBELS Oral Reading Fluency in Grade 2
Authors: Stoolmiller Michael , Biancarosa Gina , Fien Hank
Published: September 2012

Lack of psychometric equivalence of oral reading fluency (ORF) passages used within a grade for screening and progress monitoring has recently become an issue with calls for the use of equating methods to ensure equivalence. To investigate the nature of the nonequivalence and to guide the choice of equating method to correct for nonequivalence, the authors fit linear and nonlinear confirmatory factor analytic measurement models to Dynamic Indicators of Basic Early Literacy Skills (DIBELS) second-grade ORF passages routinely used for spring testing. They found evidence of nonlinear relations among passage scores that indicated equipercentile equating would be the best choice of equating method compared with mean or linear equating. The standard error of equating (SEE) with a sample of 600 participants was acceptable and less then two correct words per minute for equated scores from 0 to 150, which covers 95% and the useful range of scores. Consistent with the small SEE, the equating table also successfully removed all form differences in an independent sample of second graders. Given the widespread adoption of DIBELS in thousands of schools serving millions of students, equating all passages within a grade would substantially improve the quality of the tool and dramatically lower the assessment burden on school personnel.
Modeling Nonlinear Growth With Three Data Points
Authors: Kamata Akihito , Nese Joseph F. T. , Patarapichayatham Chalie , Lai Cheng-Fei
Published: September 2012

The purpose of this article is to demonstrate ways to model nonlinear growth using three testing occasions. We demonstrate our growth models in the context of curriculum-based measurement using the fall, winter, and spring passage reading fluency benchmark assessments. We present a brief technical overview that includes the limitations of a growth model with three time points, and how nonlinear growth can be modeled and the associated limitations. We present results for a piecewise growth mixture modeling approach to model nonlinear growth for 1 to 3 classes, as well as to further explain individual differences and to capture heterogeneity of growth patterns. We discuss our interpretation of these results, as well as the implications of different methods for modeling nonlinear growth with three occasions.
Leiomyosarcoma of the Inferior Vena Cava
Authors: Drukker Lior , Alberton Joseph , Reissman Petachia
Published: September 2012

Leiomyosarcoma of the inferior vena cava (IVC) is a rare tumor of mesenchymal origin, occurring most frequently in middle-aged women. Insidious complaints delay diagnosis, prognosis is poor, and the only curative modality remains an aggressive surgical resection yielding clear margins of disease. Commonly, radical tumor excision mandates caval repair or reconstruction, with significant related morbidity and mortality. We present a case of a 50-year-old woman with a leiomyosarcoma arising from the lower segment of the IVC, managed by surgical en-bloc resection of the tumor and IVC segment without further caval repair or reconstruction. During 14 months of follow-up the patient is well, had not had any complications, and is disease free.
Heat and mass transfer from a suddenly moved plate in nanofluids
Authors: Uddin Naseem , Khan Waqar A , Rahi Mahmood
Published: September 2012

Stokes’ first problem is studied to investigate the effects of nanofluid parameters on momentum, heat and mass transfers using the Buongiorno model. The experimental correlations for the properties of nanofluids are incorporated in the governing equations. A similarity analysis is performed to generate a set of ordinary differential equations describing the momentum, energy and mass transfers in the flow. These equations are solved numerically using the Runge–Kutta–Fehlberg method, which produces a fifth-order accurate solution. The numerical results are compared with the exact solutions for the regular fluids in the absence of nanofluid parameters and are found to be in good agreement. The results for the dimensionless velocity, temperature, wall shear stress, Nusselt and Sherwood numbers are presented graphically and compared for water-based nanofluids with ethylene-glycol-based nanofluids.
Red emission from nano-silicon nitride multilayer films prepared using hot-wire chemical vapor deposition
Authors: Panchal Ashish K , Rai Dharmendra Kumar R , Solanki Chetan S
Published: September 2012

Ultrathin silicon nitride multilayer films were prepared by varying silane/ammonia flow ratios 1/10 and 1/20 alternately in a silicon nitride hot-wire chemical vapor deposition chamber. Some films were annealed at 1000 °C for 1 h in an argon environment. Cross-sectional transmission electron microscopy shows ~6 nm silicon clusters formed in the annealed film. Strong visible red emission in the wavelength range 810–820 nm was detected from the films when excited with the 325 nm He–Cd laser excitation. A blueshift in the photoluminescence of the annealed film with respect to the as-deposited film is attributed to the silicon quantum confinement due to the presence of silicon clusters. Disappearance of the photoluminescence peak at 521 nm related to silicon dangling bonds in the annealed film in comparison with the as-deposited film was confirmed by the photoluminescence measurements.
Protein kinase D-HDAC5 signaling regulates erythropoiesis and contributes to erythropoietin cross-talk with GATA1
Authors: Delehanty Lorrie L. , Bullock Grant C. , Goldfarb Adam N.
Published: September 2012

In red cell development, the differentiation program directed by the transcriptional regulator GATA1 requires signaling by the cytokine erythropoietin, but the mechanistic basis for this signaling requirement has remained unknown. Here we show that erythropoietin regulates GATA1 through protein kinase D activation, promoting histone deacetylase 5 (HDAC5) dissociation from GATA1, and subsequent GATA1 acetylation. Mice deficient for HDAC5 show resistance to anemic challenge and altered marrow responsiveness to erythropoietin injections. In ex vivo studies, HDAC5−/− progenitors display enhanced entry into and passage through the erythroid lineage, as well as evidence of erythropoietin–independent differentiation. These results reveal a molecular pathway that contributes to cytokine regulation of hematopoietic differentiation and offer a potential mechanism for fine tuning of lineage-restricted transcription factors by lineage-specific cytokines.
Erythrocyte microparticles can induce kidney vaso-occlusions in a murine model of sickle cell disease
Authors: Camus Stéphane M. , Gausserès Blandine , Bonnin Philippe , Loufrani Laurent , Grimaud Linda , Charue Dominique , De Moraes Joao A. , Renard Jean-Marie , Tedgui Alain , Boulanger Chantal M. , Tharaux Pierre-Louis , Blanc-Brude Olivier P.
Published: September 2012

Patients with sickle cell disease suffer from painful crises associated with disseminated vaso-occlusions, increased circulating erythrocyte microparticles (MPs), and thrombospondin-1 (TSP1). MPs are submicron membrane vesicles shed by compromised or activated cells. We hypothesized that TSP1 mediates MP shedding and participates in vaso-occlusions. We injected TSP1 to transgenic SAD mice with sickle cell disease and characterized circulating phosphatidylserine+ MPs by FACS. TSP1 stimulated MPs in plasma and initiated vaso-occlusions within minutes. In vitro, TSP1 triggered rapid erythrocyte conversion into spicule-covered echinocytes, followed by MP shedding. MP shedding was recapitulated by peptides derived from the TSP1 carboxyterminus. We purified MPs shed by erythrocytes in vitro and administered them back to SAD mice. MPs triggered immediate renal vaso-occlusions. In vitro, MPs triggered the production of radical oxygen species by endothelial monolayers, favored erythrocyte adhesion, and induced endothelial apoptosis. MPs also compromised vasodilation in perfused microvessels. These effects were inhibited by saturating MP phosphatidylserine with annexin-V, or with inhibitors of endothelial ROS production. We conclude that TSP1 triggers erythrocyte MP shedding. These MPs induce endothelial injury and facilitate acute vaso-occlusive events in transgenic SAD mice. This work supports a novel concept that toxic erythrocyte MPs may connect sickle cell anemia to vascular disease.
IL-21 in the bone marrow microenvironment contributes to IgM secretion and proliferation of malignant cells in Waldenstrom macroglobulinemia
Authors: Hodge Lucy S. , Ziesmer Steve C. , Yang Zhi Zhang , Secreto Frank J. , Gertz Morie A. , Novak Anne J. , Ansell Stephen M.
Published: September 2012

Cytokines within the tumor microenvironment play an important role in supporting the growth and survival of B-cell malignancies. One such cytokine, IL-21, promotes the growth of myeloma and Hodgkin lymphoma cells while inducing apoptosis in chronic lymphocytic leukemia. However, the biologic significance of IL-21 has not been examined in Waldenstrom macroglobulinemia (WM), a B-cell lymphoma characterized by elevated serum IgM and a lymphoplasmacytic bone marrow infiltrate. We report here on the presence of IL-21 in the bone marrow of patients with WM and have identified activated T cells as the source of this cytokine. We readily detected the IL-21 receptor on malignant WM B cells and show that IL-21 significantly increases both IgM secretion and cellular proliferation of these cells with no effect on viability. IL-21 rapidly induces phosphorylation of STAT3 in WM cells, and treatment of the WM cell line MWCL-1 with a STAT3 inhibitor abolished the IL-21–mediated increases in cellular proliferation and IgM secretion. IL-21 also increased the expression of known STAT3 targets involved in B-cell differentiation, including BLIMP-1, XBP-1, IL-6, and IL-10. Overall, our data indicate that IL-21 in the bone marrow microenvironment significantly affects the biology of WM tumor cells through a STAT3-dependent mechanism.
ERG and FLI1 binding sites demarcate targets for aberrant epigenetic regulation by AML1-ETO in acute myeloid leukemia
Authors: Martens Joost H. A. , Mandoli Amit , Simmer Femke , Wierenga Bart-Jan , Saeed Sadia , Singh Abhishek A. , Altucci Lucia , Vellenga Edo , Stunnenberg Hendrik G.
Published: September 2012

ERG and FLI1 are closely related members of the ETS family of transcription factors and have been identified as essential factors for the function and maintenance of normal hematopoietic stem cells. Here genome-wide analysis revealed that both ERG and FLI1 occupy similar genomic regions as AML1-ETO in t(8;21) AMLs and identified ERG/FLI1 as proteins that facilitate binding of oncofusion protein complexes. In addition, we demonstrate that ERG and FLI1 bind the RUNX1 promoter and that shRNA-mediated silencing of ERG leads to reduced expression of RUNX1 and AML1-ETO, consistent with a role of ERG in transcriptional activation of these proteins. Finally, we identify H3 acetylation as the epigenetic mark preferentially associated with ETS factor binding. This intimate connection between ERG/FLI1 binding and H3 acetylation implies that one of the molecular strategies of oncofusion proteins, such as AML1-ETO and PML-RAR-α, involves the targeting of histone deacetylase activities to ERG/FLI1 bound hematopoietic regulatory sites. Together, these results highlight the dual importance of ETS factors in t(8;21) leukemogenesis, both as transcriptional regulators of the oncofusion protein itself as well as proteins that facilitate AML1-ETO binding.