bluuebunny/crossref_metadata_2025 huggingface dataset:
The Capitalist Machine: Computerization, Workers’ Power, and the Decline in Labor’s Share within U.S. Industries
Authors: Kristal Tali
Published: May 2013

This article addresses an important trend in contemporary income inequality—a decline in labor’s share of national income and a rise in capitalists’ profits share. Since the late 1970s, labor’s share declined by 6 percent across the U.S. private sector. As I will show, this overall decline was due to a large decline (5 to 14 percent) in construction, manufacturing, and transportation combined with an increase, albeit small (2 to 5 percent), in labor’s share within finance and services industries. To explain the overall decline and the diverse trends across industries, I argue that the main factor leading to the decline in labor’s share was the erosion in workers’ positional power, and this erosion was partly an outcome of class-biased technological change, namely computerization that favored employers over most employees. I combine data from several sources to test for the independent effects of workers’ positional power indicators (i.e., unionization, capital concentration, import penetration, and unemployment) and the direct and indirect effects of computer technology on changes in labor’s share within 43 nonagricultural private industries and 451 manufacturing industries between 1969 and 2007. Results from error correction models with fixed-effect estimators support the study’s arguments.
The cost of healthcare for children with mental health difficulties
Authors: Lucas Nina , Bayer Jordana K , Gold Lisa , Mensah Fiona K , Canterford Louise , Wake Melissa , Westrupp Elizabeth M , Nicholson Jan M
Published: May 2013

Objective:

Childhood mental health difficulties affect one in every seven children in Australia, posing a potential financial burden to society. This paper reports on the early lifetime individual and population non-hospital healthcare costs to the Australian Federal Government for children experiencing mental health difficulties. It also reports on the use and cost of particular categories of service use, including the Medicare Benefits Schedule (MBS) mental health items introduced in 2006.

Method:

Data from the Longitudinal Study of Australian Children (LSAC) were used to calculate total Medicare costs (government subsidised healthcare attendances and prescription medications) from birth to the 8th birthday associated with childhood mental health difficulties measured to 8–9 years of age.

Results:

Costs were higher among children with mental health difficulties than those without difficulties. While individual costs increased with the persistence of difficulties, population-level costs were highest for those with transient mental health difficulties. Although attenuated, these patterns persisted after child, parent and family characteristics were taken into account. Use of the MBS-reimbursed mental health services among children with a mental health difficulty was very low (around 2%).

Conclusions:

Australian healthcare costs for young children with mental health difficulties are substantial and provide further justification for early intervention and prevention. The current provision of Medicare-rebated mental health services does not appear to be reaching young children with mental health difficulties.
Factors influencing mortality among alcohol and drug treatment clients in Victoria, Australia: The role of demographic and substance use characteristics
Authors: Lloyd Belinda , Barratt Monica J , Ferris Jason , Best David , Lubman Dan I
Published: May 2013

Objective:

Clinical studies consistently identify alcohol- and drug-related treatment populations as more likely to die prematurely compared with an age-matched general population. However, demographic characteristics and primary drug of concern as predictors of mortality risk following treatment have not been adequately explored. This paper examines relationships between substance use, demographic factors and mortality among alcohol and drug treatment clients.

Method:

A retrospective cohort incorporating 7 years of data was utilised to examine mortality outcomes in the 2 years following treatment among Victorian clients recorded on the Alcohol and Drug Information Service (ADIS) database by linking partial client identifiers with the National Death Index (NDI). A cohort of 18,686 clients engaged in at least one course of treatment over a 12-month period was included. Analysis was of crude and standardised mortality rates across client groups in terms of the presenting drug of concern for treatment and demographic characteristics.

Results:

A higher risk of premature death was associated with older age, being male, not being employed, living alone, medical and psychiatric comorbidity, recent injecting, and a history of intensive drug treatment access. Alcohol treatment clients had the worst prognosis. After adjustment for client characteristics, alcohol treatment clients experienced a significantly higher rate of death compared with other clients.

Conclusions:

Findings from these previously unexplored data highlight the need to increase awareness of the range and magnitude of risks associated with harmful alcohol use, and to identify approaches to enhance treatment effectiveness to reduce negative outcomes following treatment for populations at elevated risk of harm.
A Global Trend Toward Democratic Convergence? A Lijphartian Analysis of Advanced Democracies
Authors: Vatter Adrian , Flinders Matthew , Bernauer Julian
Published: May 2013

The article offers a systematic analysis of the comparative trajectory of international democratic change. In particular, it focuses on the resulting convergence or divergence of political systems, borrowing from the literatures on institutional change and policy convergence. To this end, political-institutional data in line with Arend Lijphart’s (1999, 2012) empirical theory of democracy for 24 developed democracies between 1945 and 2010 are analyzed. Heteroscedastic multilevel models allow for directly modeling the development of the variance of types of democracy over time, revealing information about convergence, and adding substantial explanations. The findings indicate that there has been a trend away from extreme types of democracy in single cases, but no unconditional trend of convergence can be observed. However, there are conditional processes of convergence. In particular, economic globalization and the domestic veto structure interactively influence democratic convergence.
Survival and re-admission of patients admitted with alcoholic liver disease to a West of Scotland hospital
Authors: Heydtmann M , McDonald SA
Published: May 2013

Alcoholic liver disease including cirrhosis is a major health burden with huge cost to the National Health Service due to frequent hospital admissions of patients with alcoholic liver disease. The highest morbidity and mortality from alcoholic liver disease in Western Europe is in the West of Scotland. This study analyses the mortality and re-admission rates of patients admitted with alcoholic liver disease to a Glasgow hospital and compares the outcome with a Scotland wide historic control. Mortality in the study of 124 patients admitted to the hospital with alcoholic liver disease was 18% during index admission, and was 40% when including follow-up of one year after discharge. Re-admissions were high in this population. Seventy-five per cent of patients had at least one re-admission within one year, and patients spent an average of over one month in hospital during the study period. Survival rates in the Glasgow hospital were comparable to survival in the Scottish cohort. However, re-admission rates were significantly higher in the Glasgow hospital. In conclusion, patients with alcoholic liver disease requiring hospitalisation have very high mortality and frequent re-admissions.
Explaining Self-Harm
Authors: McDermott Elizabeth , Roen Katrina , Piela Anna
Published: May 2013

This study investigates self-harm among young lesbian, gay, bisexual, and trans (LGBT) people. Using qualitative virtual methods, we examined online forums to explore young LGBT people’s cybertalk about emotional distress and self-harming. We investigated how youth explained the relationship between self-harm and sexuality and gender. We found that LGBT youth may articulate contradictory, ambiguous, and multiple accounts of the relationship but there were three strong explanations: (a) self-harm was because of homophobia and transphobia; (b) self-harm was due to self-hatred, fear, and shame; (c) self-harm was emphatically not related to sexuality or gender. There was evidence of youth negotiating LGBT identities, managing homophobia, resisting pathologization, and explaining self-harm as a way of coping.
Sixth Avenue Heartache
Authors: Gottlieb Dylan
Published: May 2013

This article examines the controversy surrounding the renaming of a street for Martin Luther King Jr. in the city of Zephyrhills, Florida in 2003–2004. By paying close attention to the language deployed during a series of contentious city council meetings, the author traces how Zephyrhills’s divisive history and neoliberal spatial order kept white residents from grappling with the city’s legacy of racism, inequality, residential segregation, and memory of the Civil Rights movement. Ultimately, it reveals Americans’ limited capacity to recognize and discuss race in the post–Civil Rights era.
When industrial democracy and empowerment go hand-in-hand: A co-power approach
Authors: Humborstad Sut I Wong
Published: May 2013

There is a growing debate between mainstream and critical empowerment theorists; the latter criticize empowerment interventions that could be disempowering when the real power continues to reside with management. To draw upon the tension between these dualistic views, this study investigates whether organizations with formal power structures of collective bargaining as represented by union density and employee representation provide a facilitative social environment for empowerment to grow. Based on two combined sets of secondary data collected for the ETUI in 2006 and EWCS in 2005 from 27 European countries, this study found that countries with a stronger union tradition demonstrated higher workplace empowerment and job satisfaction for individual workers than countries with a weaker union tradition. Theoretical and practical implications are discussed.
Consequences of flexible employment at labour market entry for early career development in the Netherlands
Authors: de Lange Marloes , Gesthuizen Maurice , Wolbers Maarten HJ
Published: May 2013

In this article it is investigated to what extent flexible employment at labour market entry negatively affects the early career of school-leavers in the Netherlands in the period 1986–2008. Additionally, the question is raised to what extent educational differences exist in this relationship. To answer these questions, Dutch panel data from the OSA Labour Supply Panel are analysed. The results correspond with previous findings from studies on other European countries, supporting the stepping-stone rather than the entrapment hypothesis. A flexible start in the Dutch labour market increases the likelihood of repeated flexible employment and unemployment in the early career, and coincides with less occupational status development and income growth. However, the detrimental effects of flexible employment at labour market entry are only temporary and diminish after some years. Furthermore, no evidence is found for the existence of educational differences in the negative effects of flexible employment at labour market entry.
Ordered Delinquency
Authors: Cundiff Patrick R.
Published: May 2013

Juvenile delinquency has long been associated with birth order in popular culture. While images of the middle child acting out for attention or the rebellious youngest child readily spring to mind, little research has attempted to explain why. Drawing from Adlerian birth order theory and Sulloway’s born-to-rebel hypothesis, I examine the relationship between birth order and a variety of delinquent outcomes during adolescence. Following some recent research on birth order and intelligence, I use new methods that allow for the examination of between-individual and within-family differences to better address the potential spurious relationship. My findings suggest that contrary to popular belief, the relationship between birth order and delinquency is spurious. Specifically, I find that birth order effects on delinquency are spurious and largely products of the analytic methods used in previous tests of the relationship. The implications of this finding are discussed.
Strategic Alliance Structures
Authors: Albers Sascha , Wohlgezogen Franz , Zajac Edward J.
Published: May 2013

While strategic alliances have emerged in recent years as common and important structural vehicles for business development, surprisingly little is known about how collaborative activities are organized and administered within these governance structures. We see classic organizational scholarship as useful insofar as it both provides clear classifications that distinguish alternative intraorganizational designs and explicates how they affect the inner workings of organizations. Existing alliance classification schemes based on type of collaborative activity, partner characteristics, or legal structure, on the other hand, rarely delineate important differences of how collaborative work is organized among partners. We seek to redress this shortcoming by developing a framework of alliance structural parameters based on classic organizational design considerations. Specifically we identify and discuss five key design parameters for alliances: the structural interface between partners, the structural “intraface” within partners, and the specialization, formalization, and centralization of the alliance organization. We show how consideration of these five parameters provides a deeper understanding of alliance governance and suggest how partner organizations can achieve differential levels of connectivity and steering for their collaborative ventures.
No Woman is Like a Man (in Academia): The Masculine Symbolic Order and the Unwanted Female Body
Authors: Fotaki Marianna
Published: May 2013

Women continue to be under-represented in senior positions in universities and their relative absence from the top jobs in management and business schools remains a cause for concern. The aim of this study is to extend understanding of this situation by drawing on the feminist psychoanalytical post-structuralist theories of Luce Irigaray and Julia Kristeva. The theoretical frame proposed engages with debates over language, discourse and the body and allows development of a theory of the disembodied symbolic order explaining women’s continued marginalization and devaluation in academe. This is achieved through analysis of empirical findings of the experiences of women faculty in nine management and business schools in England. The study demonstrates how male norms and woman’s absence from symbolic representations disables their participation in equivalent terms in the institutions studied, and how women often both collude with and resist their own marginalization in academia.
The Effects of Community-Based Visiting Care on the Quality of Life
Authors: Lim Ji Young , Kim Geun Myun , Kim Eun-Joo , Choi Kyung Won , Kim Sang Suk
Published: May 2013

This study explored factors contributing to the quality of life of community-based home visiting care service users in Korea through a two-level multilevel model. The community health care center’s organizational factors including the total number of visiting nurses and visiting nurses’ rehire rate were treated as covariates. For participant’s individual factors (Level 1), only subjective health status and the presence of cerebral vascular disease significantly explained the quality of life. Visiting nurses’ demographic factors (Level 2) were not statistically significant. However, the total number of visiting nurses and visiting nurses’ rehire rate were significant. Therefore, to increase an elderly adult’s quality of life through community-based home visiting care services, a community health care center’s organizational factors should be considered in addition to patient characteristics. This result may prove useful not only for Korea but also for other countries that intend to reform their community-based home visiting care services.
“A Different Kind of Man”
Authors: Mocarski Richard , Butler Sim , Emmons Betsy , Smallwood Rachael
Published: May 2013

Chaz Bono’s appearance on Dancing with the Stars (DWTS) marks one of the first primetime, network appearances of a postoperative transgender person. This article deconstructs the mediated gender subjectivities of Bono as constructed by the show itself via prerecorded segments, costume and song choices, dance partner interaction, and judges’ commentaries as well as those projected by Bono during the live, unscripted portions of the show. Combining notions of the normalization of taboo sexual subjectivities through mediated contexts with lens of gender performativity, we demonstrate how transgender subjectivities are presented to a mainstream audience via such mediated choices, but also how Bono welds some agency to resist such normalization through his live performances. Bono’s appearance on DWTS stands as an important step toward acceptance of transgendered persons in mainstream society, however through a neutered, sex-free rhetoric as projected by the mediated portions of the show, his appearance is not without controversy. Additionally, we posit that Bono represents a transnormativity of a White, upper-class postoperative heterosexual male, which others all transgendered persons who fall outside of those hegemonic parallels of safe subjectivities.
Glucocorticoids in adult cardiac surgery; old drugs revisited
Authors: Zakkar M , Kanagasabay R
Published: May 2013

Glucocorticoids can play a pivotal role in modulating different immune responses. The role of glucocorticoids in cardiac surgery is still controversial as many surgeons are concerned about the potential side effects.

In this review, we looked at the role of glucocorticoid administration in modulating postoperative inflammatory responses, atrial fibrillation (AF) and intimal hyperplasia and whether glucocorticoid use is associated with a significant increase in undesirable postoperative complication.
Headache yesterday in China: A new approach to estimating the burden of headache, applied in a general-population survey in China
Authors: Yu Shengyuan , He Mianwang , Liu Ruozhuo , Feng Jiachun , Qiao Xiangyang , Yang Xiaosu , Cao Xiutang , Zhao Gang , Fang Yannan , Steiner Timothy J
Published: May 2013

Background

In order to minimize recall bias in burden estimation, questions about headache yesterday were included in a population-based survey initiated by Lifting The Burden: The Global Campaign against Headache.

Methods

Throughout China, nonrelated respondents aged 18–65 years were randomly sampled from the general population by a door-to-door survey. A validated structured questionnaire included inquiry into occurrence and burden of headache on the preceding day (“headache yesterday”).

Results

The participation rate was 94.1%. Of 5041 participants, 286 (5.7%) (male 3.6%, female 7.9%) reported headache yesterday. Age-weighted prevalence of headache yesterday was 4.8% (male 3.0%, female 6.6%). Headache yesterday lasted all day in 36.8%, <1 hour in 14.3% and for a mean of 3.7 ± 3.3 hours in 48.9%. Headache yesterday was moderate to severe in 79.9%; disability such that they could do less than half of what they had expected was reported by 19.9% and such that they could do nothing by a further 7.5% (total 27.4%). Almost three-quarters (71.5%) with headache yesterday took medication to treat it.

Conclusions

Of the adult Chinese population, 1.8% have headache at any one time that is of moderate to severe intensity in 1.4%, and 1.3% lose the equivalent of a whole day to headache-attributed disability every day. In China this means 12.3 million people.
Successful treatment of post-dural-puncture headache with surgical dura repair two years after spinal anesthesia
Authors: Pouskoulas Christos D , Taub Ethan , Ruppen Wilhelm
Published: May 2013

Background

Post-dural-puncture headache (PDPH) can be a highly disturbing complication of elective spinal anesthesia. The incidence of PDPH when small needles are used is estimated to be 0%–14.5%. PDPH usually resolves spontaneously within a few days, but there are rare cases that persist in spite of conventional and epidural blood patch therapy.

Case

A 59-year-old man suffered from persistent postural headache for more than two years after an otherwise uneventful spinal anesthesia. Conventional and minimally invasive treatments were unsuccessful.

Intervention/outcome

A neurosurgical procedure was performed, during which a dural leak was identified and repaired. The patient was immediately pain free after surgery and has remained so for the duration of follow-up (more than one year).
Migraine attacks after transcatheter closure of atrial septal defect
Authors: Kato Yuji , Kobayashi Toshiki , Ishido Hirotaka , Hayashi Takeshi , Furuya Daisuke , Tanahashi Norio
Published: May 2013

Objective

The purpose of our study was to evaluate the effect of atrial septal defect (ASD) closure on migraine headache attacks (MHA).

Methods

A total of 247 patients who underwent percutaneous ASD closure at our facilities were sent a structured questionnaire. We diagnosed MHA according to the criteria of the International Headache Society.

Results

A total of 207 patients were included in the study. New-onset MHA occurred in 23 patients and persisted in 15 at a mean follow-up of 45 months. Of the 29 patients who had MHA prior to ASD closure, 11 reported exacerbation of MHA, 11 reported no change and seven reported improvement within three months after ASD closure. Compared with the patients who had no MHA, patients with de novo MHA were younger and patients with MHA improvement tended to be older. Switching from aspirin to ticlopidine or clopidogrel rapidly aborted frequent MHA in nine patients who had severe symptoms after ASD closure.

Conclusions

These results indicate that Amplatzer device implantation can act as a permanent trigger of MHA in not a few patients, and that age may be an important predictive factor of the influence of ASD closure on MHA.
Clock Drawing Test
Authors: Riedel Oliver , Klotsche Jens , Förstl Hans , Wittchen Hans-Ulrich
Published: May 2013

Despite the wide use of clock drawing tests (CDTs) for screening cognitive impairment, their use in patients having Parkinson disease (PD) with dementia has not been systematically investigated until date. In this cross-sectional study, neurological and neuropsychiatric statuses of 1449 outpatients having PD with and without dementia were comprehensively assessed. The CDT revealed cognitive impairment in 42.7% of the 1383 patients whose drawings were available. Overall, CDT sensitivity and specificity were 70.7% and 68.9%, respectively. The positive and negative predictive values were 48.0% and 85.3%, respectively. In patients with depression, CDT specificity dropped significantly to 55.8% (71.3% in nondepressed patients, P < .001). Classification performance was not impacted by motor symptoms. The estimated classification performances and predictive values correspond to those reported previously for non-PD populations. Our results indicate that CDT is a suitable screening instrument in patients with PD, but test results from patients with depression warrant careful consideration.
Modelling the impact of HIV prevention and treatment for men who have sex with men on HIV epidemic trajectories in low- and middle-income countries
Authors: Wirtz A L , Walker D G , Bollinger L , Sifakis F , Baral S , Johns B , Oelrichs R , Beyrer C
Published: May 2013

Little is known about the impact of combination HIV prevention interventions for men who have sex with men (MSM) and the impacts on the wider epidemics. Modelling analyses of MSM-specific interventions across varied HIV epidemics may inform evidence-based responses. The Goals model was adapted to project the impacts of providing HIV interventions for MSM and access to expanded coverage of antiretroviral therapy (ART) for adults to measure the effects on the MSM and adult epidemics in Peru, Ukraine, Kenya and Thailand. Positive impacts were observed in all four countries. Across epidemics, 14–25% of infections among MSM may be averted between 2012 and 2016 when MSM interventions are brought to scale and MSM have equal access to expanded ART for adults. Among adults, MSM interventions may avert up to 4000 new infections, in addition to the benefits associated with increased ART. Greatest impacts from expanded interventions were observed in countries where same sex transmission contributes significantly to the HIV epidemic. While significant benefits are observed among the adult and MSM populations with expansion of ART, consideration should be given to the synergies of combining ART expansion with targeted interventions to reach hidden, high-risk populations for HIV testing and counselling and linkages to care.
Multiple-type human papillomavirus infection in younger uncircumcised men
Authors: Nielsen A , Munk C , Jørgensen H O , Winther J F , Van Den Brule A J C , Kjaer S K
Published: May 2013

A cohort of 388 young men enrolled for military service in the Danish army was established and the participants underwent a clinical examination with human papillomavirus (HPV) testing. In addition, a questionnaire containing questions regarding sociodemographic variables, sexual habits and lifestyle factors was completed. The prevalence of HPV was 33.4% in this cohort of uncircumcised men aged 18–29 years. Multiple HPV types were prevalent with one-third of the HPV-positive men being positive for more than one HPV type. Number of recent sexual partners and infrequent condom use were strong risk factors, particularly in men having multiple HPV types. Our findings re-emphasize the importance of sexual transmission and also point to a role of factors that may be related to individual susceptibility as genital warts, alcohol intake and, to a lesser extent, smoking were strongly associated with having multiple HPV types.
Ocular complications and loss of vision due to herpes zoster ophthalmicus in patients with HIV infection and a comparison with HIV-negative patients
Authors: Nithyanandam S , Joseph M , Stephen J
Published: May 2013

The aim of the work is to describe the occurrence of ocular complications and loss of vision due to herpes zoster ophthalmicus (HZO) in HIV-positive patients who received early antiviral therapy for HZO. This is a post hoc analysis of prospectively collected data. Twenty-four HIV-positive patients with HZO were included in this report; male to female ratio was 3.8:1; mean age was 33.5 (±14.9) years. The visual outcome was good, with 14/24 patients having 6/6 vision; severe vision loss (≤6/60) occurred in only 2/24. There was no statistical difference in the visual outcome between the HIV-positive and -negative patients ( P = 0.69), although severe vision loss was more likely in HIV-infected patients. The ocular complications of HZO in HIV-infected patients were: reduced corneal sensation (17/24), corneal epithelial lesions (14/24), uveitis (12/24), elevated intraocular pressure (10/24) and extra-ocular muscle palsy (3/24). The severity of rash was similar in the two groups but multidermatomal rash occurred only in HIV-infected patients (4/24). There was no difference in the occurrence of ocular complications of HZO between HIV-positive and HIV-negative patients. HZO associated ocular complications and visual loss is low in HIV-infected patients if treated with HZO antiviral therapy and was comparable with HIV-negative patients. Early institution of HZO antiviral therapy is recommended to reduce ocular complication and vision loss.
Ipsilateral Intact Fibula as a Predictor of Tibial Plafond Fracture Pattern and Severity
Authors: Luk Pamela C. , Charlton Timothy P. , Lee Jackson , Thordarson David B.
Published: May 2013

Background:

The objective of this study was to determine whether there is a difference in fracture pattern and severity of comminution between tibial plafond fractures with and without associated fibular fractures using computed tomography (CT). We hypothesized that the presence of an intact fibula was predictive of increased tibial plafond fracture severity.

Methods:

This was a case control, radiographic review performed at a single level I university trauma center. Between November 2007 and July 2011, 104 patients with 107 operatively treated tibial pilon fractures and preoperative CT scans were identified: 70 patients with 71 tibial plafond fractures had associated fibular fractures, and 34 patients with 36 tibial plafond fractures had intact fibulas. Four criteria were compared between the 2 groups: AO/OTA classification of distal tibia fractures, Topliss coronal and sagittal fracture pattern classification, plafond region of greatest comminution, and degree of proximal extension of fracture line.

Results:

The intact fibula group had greater percentages of AO/OTA classification B2 type (5.5 vs 0, P = .046) and B3 type (52.8 vs 28.2, P = .013). Conversely, the percentage of AO/OTA classification C3 type was greater in the fractured fibula group (53.5 vs 30.6, P = .025). Evaluation using the Topliss sagittal and coronal classifications revealed no difference between the 2 groups ( P = .226). Central and lateral regions of the plafond were the most common areas of comminution in fractured fibula pilons (32% and 31%, respectively). The lateral region of the plafond was the most common area of comminution in intact fibula pilon fractures (42%). There was no statistically significant difference ( P = .71) in degree of proximal extension of fracture line between the 2 groups.

Conclusions:

Tibial plafond fractures with intact fibulas were more commonly associated with AO/OTA classification B-type patterns, whereas those with fractured fibulas were more commonly associated with C-type patterns. An intact fibula may be predictive of less comminution of the plafond. The lateral and central regions of the plafond were the most common areas of comminution in tibial plafond fractures, regardless of fibular status.

Level of Evidence:

Level III, case control study.
Optimal parameters estimation and vibration control of a viscoelastic adaptive sandwich beam incorporating an electrorheological fluid layer
Authors: Allahverdizadeh Akbar , Mahjoob Mohammad J , Nasrollahzadeh Naser , Eshraghi Iman
Published: May 2013

The complex shear modulus of an electrorheological (ER) adaptive sandwich beam is optimally estimated to model the system for vibration control. In the composition of a three layered beam, the ER fluid layer is embedded between two constraining layers. Using finite element (FE) method, the governing equations of the composite viscoelastic beam are derived. The developed model is compared with the results found in the literature. In addition, for a fabricated ER sandwich beam, the ASTM E756 standard is employed to estimate the complex shear modulus of the viscoelastic layer in different electric fields. An optimization procedure is conducted based on particle swarm optimization (PSO). In this process, the rough estimation of complex shear modulus extracted by ASTM E756 is modified to correlate the results of the FE model and the experimental tests. The updated FE model is mapped into an appropriate form that can be used for control objectives. Finally, a semi-active sliding mode control is utilized to attenuate the vibration of the adaptive sandwich beam by tuning its electric field dependent characteristics.
Implementation of m-health applications in botswana: telemedicine and education on mobile devices in a low resource setting
Authors: Littman-Quinn Ryan , Mibenge Chikoti , Antwi Cynthia , Chandra Amit , Kovarik Carrie L
Published: May 2013

Although Botswana has recently been categorised as an upper middle income country, it is burdened by a scarcity of resources, both human and technological. There are barriers to patients’ access to specialized care and healthcare providers’ access to medical knowledge. Over the past three years, the Botswana-University of Pennsylvania Partnership (BUP) has piloted four mobile telemedicine projects in the specialties of women's health (cervical cancer screening utilizing visual inspection with acetic acid), radiology, oral medicine and dermatology. Mobile telemedicine has been used in 11 locations in Botswana, training a total of 24 clinicians and successfully contributing to the management of 643 cases. In addition to mobile telemedicine, BUP has initiated an m-learning programme with the University of Botswana School of Medicine. While successfully providing patients and providers with improved access to healthcare resources, the m-health projects have faced numerous technical and social challenges. These include malfunctioning mobile devices, unreliable IT infrastructure, accidental damage to mobile devices, and cultural misalignment between IT and healthcare providers. BUP has worked with its local partners to develop solutions to these problems. To ensure sustainability, m-health programmes must have strategic goals that are aligned with those of the national health and education system, and the initiatives must be owned and led by local stakeholders. Whenever possible, open source technology and local IT expertise and infrastructure should be employed.
Digital images taken with a mobile phone can assist in the triage of neurosurgical patients to a level 1 trauma centre
Authors: Bullard Timothy B , Rosenberg Marcy S , Ladde Jay , Razack Nizam , Villalobos Hunaldo J , Papa Linda
Published: May 2013

We investigated whether head CT images captured using a mobile phone would be of sufficient quality for neurosurgeons at a level 1 trauma centre to make decisions about whether to transfer patients from referring hospitals. All patients who had been transferred from outside facilities with reported intracranial pathology during 2008 were identified. Two emergency medicine physicians selected 1-3 images from the hospital archive that best represented the pathology described by the radiologist and the medical record. The images were photographed in a darkened room using a smart phone. The mobile phone images and clinical history were reviewed by two neurosurgeons independently. The neurosurgeons rated the adequacy and quality of the images, and indicated whether the images would have changed their transfer decision. Based on clinical data alone, neurosurgeon A would have transferred 64 (73%) patients and neurosurgeon B 39 (44%). After images were provided, A would have transferred 67 (76%) and B would have transferred 49 (56%). The availability of the images significantly altered the transfer decision by A in 25 cases (28%) ( P = 0.024) and by B in 28 cases (32%) ( P < 0.001). The level of agreement between the two neurosurgeons significantly increased from 53% (kappa = 0.11) to 75% (kappa = 0.47) ( P < 0.001). Mobile-phone images of CT scans appear to provide adequate images for triaging patients and helping with transfer decisions of neurosurgical cases.
A Low Cost Method of Digitizing Radiographs Using a Photo Light Box
Authors: Baldisserotto Matteo , De Godoy Giltom Fontoura , Barbieri Denis
Published: May 2013

We evaluated a low cost device for digitizing X-ray films. It consisted of a locally-made wooden box and a readily-available digital camera. Two experienced paediatric radiologists interpreted the original X-ray films (the reference standard) and the corresponding images obtained in the photo light box. Ninety paediatric chest X-ray films were used (30 were normal chest radiographs, 30 showed pneumonic-consolidation and 30 had interstitial infiltrates). The presence or absence of the three signs most frequently found in acute respiratory pathologies were evaluated: normal pulmonary transparency, pneumonic consolidation and interstitial infiltration. There was very good agreement between the X-ray films and the digitized images, with kappa values from 0.86 to 0.98. There was good agreement between the two observers, with kappa values from 0.67 to 0.90. The low-cost photo light box represents an accessible and low-cost approach to transmitting X-ray images, allowing findings or a second opinion from a specialist radiologist to be obtained from a distance.
Telerehabilitation for People with Chronic Obstructive Pulmonary Disease: Feasibility of a Simple, Real Time Model of Supervised Exercise Training
Authors: Holland Anne E , Hill Catherine J , Rochford Peter , Fiore Julio , Berlowitz David J , Mcdonald Christine F
Published: May 2013

We evaluated the safety and feasibility of home telerehabilitation for people with chronic obstructive pulmonary disease (COPD). Eight patients with mean age of 66 years and moderately impaired lung function took part. The telerehabilitation equipment in the participant's home included an exercise bicycle, a tablet computer with webcam for low bandwidth videoconferencing, and a pulse oximeter positioned so that the display was visible while videoconferencing. Participants undertook supervised aerobic training twice a week for eight weeks, with two participants and a physiotherapist attending each class via videoconferencing from separate locations. Primary outcomes were adverse events, sessions attended and system usability. Secondary outcomes were the 6-minute walk distance (6MWD) and Chronic Respiratory Questionnaire (CRQ). No significant adverse events occurred during the study. Participants attended 76% of possible sessions. System usability ratings were excellent when sessions were delivered via the university network (mean 94 out of 100) but lower when using the hospital network (mean 59 out of 100), with 67% of technical problems related to data network capability. Five participants completed the programme, with clinically significant improvements in 6MWD (mean 27 m, SD 40) and CRQ dyspnoea (4 units, SD 4). Simple home-based telerehabilitation using readily available equipment is safe and feasible for people with COPD. Effective delivery of telerehabilitation requires an adequate data network.
PedsQLTM 4.0 Generic Core Scales for adolescents in the Yoruba language: Translation and general psychometric properties
Authors: Atilola Olayinka , Stevanović Dejan
Published: May 2013

Background:

Quality of life (QOL) is a universally accepted concept for measuring the impact of different aspects of life on general well-being. Adaptation of existing QOL instruments to local cultures has been identified as a better strategy than development of new ones.

Aims:

To translate and adapt the Paediatric Quality of Life Inventory™ Version 4.0 Generic Core Scales (PedsQL™) to the Yoruba language and culture and to test the psychometric properties of the adapted instrument among adolescents.

Methods:

Psychometric properties including internal consistency reliability, construct and factorial validity of the Yoruba version of PedsQL™ were evaluated using standard procedures.

Results:

The self report and proxy scales of the Yoruba PedsQL™ were developed with good cultural relevance and semantic/conceptual equivalence. Results from 527 adolescents revealed a Cronbach’s coefficient which exceeded 0.7 for internal consistency reliability for all scores. The healthy subjects reported higher PedsQL™ scores than those with mental health and physical problems, which confirmed construct validity. Confirmatory factor analysis revealed a good model fit for the Psychosocial Health score, but not for the other measures.

Conclusions:

The Yoruba PedsQL™ is culturally appropriate and with good internal consistency, reliability and construct validity. More work is needed regarding its factorial validity.
Can Donated Media Placements Reach Intended Audiences?
Authors: Cooper Crystale Purvis , Gelb Cynthia A. , Chu Jennifer , Polonec Lindsey
Published: May 2013

Donated media placements for public service announcements (PSAs) can be difficult to secure, and may not always reach intended audiences. Strategies used by the Centers for Disease Control and Prevention’s (CDC) Screen for Life: National Colorectal Cancer Action Campaign (SFL) to obtain donated media placements include producing a diverse mix of high-quality PSAs, co-branding with state and tribal health agencies, securing celebrity involvement, monitoring media trends to identify new distribution opportunities, and strategically timing the release of PSAs. To investigate open-ended recall of PSAs promoting colorectal cancer screening, CDC conducted 12 focus groups in three U.S. cities with men and women either nearing age 50 years, when screening is recommended to begin, or aged 50-75 years who were not in compliance with screening guidelines. In most focus groups, multiple participants recalled exposure to PSAs promoting colorectal cancer screening, and most of these individuals reported having seen SFL PSAs on television, in transit stations, or on the sides of public buses. Some participants reported exposure to SFL PSAs without prompting from the moderator, as they explained how they learned about the disease. Several participants reported learning key campaign messages from PSAs, including that colorectal cancer screening should begin at age 50 years and screening can find polyps so they can be removed before becoming cancerous. Donated media placements can reach and educate mass audiences, including millions of U.S. adults who have not been screened appropriately for colorectal cancer.
Primary functional and aesthetic restoration of the fingernail in distal fingertip amputations with the eponychial flap
Authors: Fakin R. M. , Biraima A. , Klein H. , Giovanoli P. , Calcagni M.
Published: May 2013

Fingertip injuries often result in fingernail defects. Reconstruction of this structure is important for adequate functional and aesthetic results. This study evaluates the eponychial flap reconstruction technique in 45 fingertip amputations with loss of more than half the fingernail. In 33 cases the procedure was performed in combination with a palmar island flap for pulp reconstruction. Average follow up was 5 months. All eponychial flaps healed uneventfully. In 44 cases, the pulp volume was restored without nail growth disturbance. Five complications (9%) were observed (pain, soft nail, and nail deformity). Only one hook nail deformity required reoperation. All patients were satisfied with the aesthetic and functional outcome. We found eponychial flap fingernail reconstruction effective even for injuries proximal to the lunula and have extended the indication for this technique to very proximal fingernail defects. Eponychial flap reconstruction is a simple, safe, and time-effective technique without donor site morbidity. Simultaneous reconstruction of dorsal and palmar injuries should both be performed primarily resulting in the restoration of a satisfying fingertip.
Efficacy and tolerability of Day 2 manipulation and local anaesthesia after collagenase injection in patients with Dupuytren’s contracture
Authors: Manning C. J. , Delaney R. , Hayton M. J.
Published: May 2013

In clinical trials, treating Dupuytren’s contracture with collagenase injection involves manipulation the day after injection, without local anaesthesia. We evaluated the efficacy and tolerability of manipulation 2 days after injection with local anaesthesia. Forty-five patients received 50 injections into cords contracting metacarpophalangeal and proximal interphalangeal joints; follow-up visits were at 3 and 14 weeks. For the metacarpophalangeal joints there were >90% reduction in contracture at both visits. The proximal interphalangeal joints that improved spontaneously after metacarpophalangeal injection or received direct injections showed 51–55% reduction in contracture. Changes in scores on the Patient Evaluation Measure suggest that patients perceived improvements in their hand function was good and they were satisfied with the procedure. Collagenase and local anaesthesia injections were well tolerated; adverse events were localized to the injection site and were mild and transient in nature. These findings provide another viable option for practising surgeons and may help with the logistics of patient care.
Acquisition Premiums and Performance Improvements for Acquirers and Targets in the Lodging Industry
Authors: Kim Jin-Young , Canina Linda
Published: May 2013

Given that the stated purpose of mergers and acquisitions (M&A) is to create value for the newly merged firm, the M&A offer premium ought to be positively related to the realized benefits or realized synergies that result from combining the target and the acquirer. Not all empirical evidence supports this notion, however. Because some M&A activities have not been found to be consistently value enhancing, other M&A motives have been proposed, most notably empire building and personal rewards. In contrast to those notions, this paper’s analysis of lodging M&A results suggests that lodging M&A is in fact motivated by value creation. Furthermore, our evidence supports the supposition that the premium reflects the value of synergy, as postulated conceptually. Using a property-level dataset, this paper infers lodging managers’ intentions by investigating the relationship between the final offer premium paid to the target shareholders and the change in the pre- and postacquisition operating performance of the target’s and the acquirer’s properties. Refuting the argument of the market for corporate control as well as the non-value-related motives, this analysis finds that the premium is related to the performance changes of the acquirer’s properties but is not related to that of the target’s properties. Interestingly, this suggests that the target’s properties serve as a crucial resource to improve the performance of the acquirer’s properties, and consequently, the premium may be viewed as the payment to gain control over the targets’ resources.
Understanding Health Disparities
Authors: Turner R. Jay
Published: May 2013

Race and socioeconomic status (SES) health disparities imply massive impact in terms of unequal suffering and dramatic social and economic costs. It is clear that status differences in the availability, use, and effectiveness of medical care and in a variety of health behaviors are implicated in these disparities. However, it is equally clear that adjustments for these differences leave the majority of race and SES health disparities unexplained. Despite wide acceptance of the idea that differences in stress exposure may contribute importantly to such disparities, it is contended that the stress hypothesis has never been effectively tested because of misclassification in the distinction between the disordered and the well and the inadequate estimation of differences in exposure to social stressors. This article reviews the empirical basis for this contention and describes an ongoing community study designed to more effectively evaluate the hypothesis that lifetime stress exposure represents a fundamental factor in observed race and SES health disparities. It is suggested that the application of aspects of the approach described may advance the capacity of future research to fully evaluate the mental health significance of the stress process.