bluuebunny/crossref_metadata_2025 huggingface dataset:
Protective effects of dietary selenium and vitamin C in barium-induced cardiotoxicity
Authors: Elwej Awatef , Ghorbel Imen , Chaabane Mariem , Soudani Nejla , Marrekchi Rim , Jamoussi Kamel , Mnif Hela , Boudawara Tahia , Zeghal Najiba , Sefi Mediha
Published: December 2016

Several metals including barium (Ba) known as environmental pollutants provoke deleterious effects on human health. The present work pertains to the potential ability of selenium (Se) and/or vitamin C, used as nutritional supplements, to alleviate the toxic effects induced by barium chloride (BaCl2) in the heart of adult rats. Animals were randomly divided into seven groups of six each: group 1, serving as negative controls, received distilled water; group 2 received in their drinking water BaCl2 (67 ppm); group 3 received both Ba and Se (sodium selenite 0.5 mg kg−1 of diet); group 4 received both Ba and vitamin C (200 mg kg−1 bodyweight) via force feeding; group 5 received Ba, Se, and vitamin C; and groups 6 and 7, serving as positive controls, received either Se or vitamin C for 21 days. The exposure of rats to BaCl2 caused cardiotoxicity as monitored by an increase in malondialdehyde, hydrogen peroxide, and advanced oxidation protein product levels, a decrease in Na+-K+ adenosine triphosphatase (ATPase), Mg2+ ATPase, and acetylcholinesterase activities and in antioxidant defense system (catalase, glutathione peroxidase, superoxide dismutase, glutathione, and nonprotein thiols). Plasma lactate dehydrogenase and creatine kinase activities, total cholesterol, triglyceride, and low-density lipoprotein–cholesterol levels increased, while high-density lipoprotein–cholesterol level decreased. Coadministration of Se and/or vitamin C restored the parameters indicated above to near control values. The histopathological findings confirmed the biochemical results. Se and vitamin C may be a promising therapeutic strategy for Ba-induced heart injury.
Performing the school librarian: Using the Butlerian concept of performativity in the analysis of school librarian identities
Authors: Centerwall Ulrika
Published: December 2016

This paper reports on a research study using the Butlerian notion of performativity in the analysis of school librarian identity. The purpose is to explore how librarians at secondary and upper-secondary schools perform their identities as school librarians. Fourteen in-depth interviews were conducted. The analysis was driven by the theoretical concepts of performative identity, recognizability and intelligibility. Performing identity was found to be part of six work-tasks: to express, to position, to make visible, to remind, to inform and to explain. In conclusion, the study contributes to research on school librarian challenges, pursuits and strategies when performing professional identity in relation to teachers. Focusing on the performative acts of school librarians can contribute to understandings of their everyday challenges and deepen the understanding of the profession.
Neonatal nurses’ response to a hypothetical premature birth situation: What if it was my baby?
Authors: Green Janet , Darbyshire Philip , Adams Anne , Jackson Debra
Published: December 2016

Background:

Evolving technology and scientific advancement have increased the chances of survival of the extremely premature baby; however, such survival can be associated with some severe long-term morbidities.

Research question:

The research investigates the caregiving and ethical dilemmas faced by neonatal nurses when caring for extremely premature babies (defined as ≤24 weeks’ gestation). This article explores the issues arising for neonatal nurses when they considered the philosophical question of ‘what if it was me and my baby’, or what they believed they would do in the hypothetical situation of going into premature labour and delivering an extremely premature baby.

Participants:

Data were collected via a questionnaire to Australian neonatal nurses and semi-structured interviews with 24 neonatal nurses in New South Wales, Australia.

Ethical considerations:

Relevant ethical approvals have been obtained by the researchers.

Findings:

A qualitative approach was used to analyse the data. The theme ‘imagined futures’ was generated which comprised three sub-themes: ‘choice is important’, ‘not subjecting their own baby to treatment’ and ‘nurses and outcome predictions’. The results offer an important and unique understanding into the perceptions of nursing staff who care for extremely premature babies and their family, see them go home and witness their evolving outcomes. The results show that previous clinical and personal experiences led the nurses in the study to choose to have the belief that if in a similar situation, they would choose not to have their own baby resuscitated and subjected to the very treatment that they provide to other babies.

Conclusion:

The theme ‘imagined futures’ offers an overall understanding of how neonatal nurses imagine what the life of the extremely premature baby and his or her family will be like after discharge from neonatal intensive care. The nurses’ past experience has led them to believe that they would not want this life for themselves and their baby, if they were to deliver at 24 weeks’ gestation or less.
The Impact of the Human Rights Education Program for Women on Gender Perceptions of Social Work Students
Authors: Altınova Hasan H. , Duyan Veli , Megahead Hamido A.
Published: December 2016

Objectives:

This study examines the impact of women’s human rights education on improving the gender perceptions (GPs) of social work students.

Methods:

Experimental group consists of third-year social work students participated in the “Human Rights Education Program for Women (HREP)” within the scope of social work principles and methods II course given in Ankara University, Department of Social Work, whereas control group consists of the same class students who did not participate in the program. Gender Perception Scale was employed as an outcome measure tool in the study in which 65 students participated. The research in question is a quasi-experimental study, where pretest–posttest model is used. The HREP was performed on the students in a total of 12 sessions and each session lasted about 120 min.

Results:

The research study revealed GP levels of the social work students participated in the HREP were improved.

Conclusions:

HREP is effective in educating women on human rights; hence, this program should be used to educate female students at universities and create awareness on human rights.
Cognitive Behavioral Therapy Group for Reducing Self-Stigma for People With Mental Illness
Authors: Young Daniel Kim-Wan
Published: December 2016

This research project aims to evaluate the effectiveness of a cognitive behavioral therapeutic (CBT) group in reducing self-stigma for people with mental illness in Chinese society. In this study, a quasi-experimental research method was adopted involving 71 people with mental illness receiving community-based mental health services. In total, 33 treatment group participants were assigned to a 10-session CBT group, while 38 control group participants received treatment as usual. Standardized assessment tools were used to collect data in the pre- and posttreatment periods by a research assistant. Analysis of covariance demonstrated that the CBT group was significantly more effective than the control group in terms of reducing self-stigma and depressive mood, with a moderate effect size, even after controlling for differences in various demographic variables between the treatment and control groups. This study provides evidence to support the efficacy and effectiveness of a CBT group for reducing self-stigma for people with mental illness.
Measuring Quality, Evaluating Curricular Change
Authors: Warnock Scott , Rouse Nicholas , Finnin Christopher , Linnehan Frank , Dryer Dylan
Published: December 2016

This article reports the background, methods, and results of a 7-year project (2007–2013) that assessed the writing of undergraduate business majors at a business college. It describes specific issues with writing assessment and how this study attempted to overcome them, largely through a situated assessment approach. The authors provide the results of more than 3,700 assessments of nearly 2,000 documents during the course of the study, reporting on scores overall and for each rubric criterion and comparing the scores of English and business assessors. They also investigate how two curricular interventions were evaluated through this assessment project. Although overall, the writing of these business majors was assessed as good, results showed noteworthy differences between the scores of English and business assessors and a noteworthy impact for one of the curricular interventions, an effort to improve the material conditions of writing instruction. The authors conclude by discussing some next steps and implications of this project.
School Nurse Workload
Authors: Endsley Patricia
Published: December 2016

The purpose of this scoping review was to survey the most recent (5 years) acute care, community health, and mental health nursing workload literature to understand themes and research avenues that may be applicable to school nursing workload research. The search for empirical and nonempirical literature was conducted using search engines such as Google Scholar, PubMed, CINAHL, and Medline. Twenty-nine empirical studies and nine nonempirical articles were selected for inclusion. Themes that emerged consistent with school nurse practice include patient classification systems, environmental factors, assistive personnel, missed nursing care, and nurse satisfaction. School nursing is a public health discipline and population studies are an inherent research priority but may overlook workload variables at the clinical level. School nurses need a consistent method of population assessment, as well as evaluation of appropriate use of assistive personnel and school environment factors. Assessment of tasks not directly related to student care and professional development must also be considered in total workload.
The Link Between Clinically Validated Patient Safety Indicators and Clinical Outcomes
Authors: Gray Darrell M. , Hefner Jennifer L. , Nguyen Michelle C. , Eiferman Daniel , Moffatt-Bruce Susan D.
Published: December 2016

There is a paucity of evidence on the association between clinically validated Patient Safety Indicators (PSIs) and inpatient length of stay, mortality, and 30-day unplanned readmission. The authors perform a retrospective analysis of patient discharges from an academic medical center comprising 6 hospitals from July 2012 to June 2014. Multivariable regression models are used to assess the relationship between length of stay, mortality, and 30-day unplanned readmission and the presence of a clinically validated PSI. Cases flagged with a clinically validated PSI are associated with a statistically greater length of stay, 30-day unplanned readmission, and mortality as compared to cases without a PSI. This study demonstrates a strong association between clinically validated PSIs and patient outcomes. The findings have important implications in policy and practice as health care reform dictates improvement in the experience of care, health of populations, and per capita costs.
Perceived Employability of Nonlocal Chinese University Students in Hong Kong
Authors: Cheung Raysen , Jin Qiuping , Cheung Chau-kiu
Published: December 2016

Perceived employability has been found to be related to the career development and well-being of both working adults and university students. In a first initiative to examine perceived employability among nonlocal Chinese university students, we collected data from a sample of 246 graduating students who had come from Mainland China to study in Hong Kong. After controlling for demographic variables and migration intentions, we found that perceived employability was explained by career exploration, relational support, acculturative hassles, and the assimilation strategy of acculturation. Career exploration was also found to mediate the relationship between the assimilation strategy of acculturation and perceived employability. We discuss the implications of these findings for theory building and career guidance practices regarding the perceived employability and career guidance of nonlocal and international Chinese students.
Structured Trauma-Focused CBT and Unstructured Play/Experiential Techniques in the Treatment of Sexually Abused Children: A Field Study With Practicing Clinicians
Authors: Allen Brian , Hoskowitz Natalie Armstrong
Published: December 2016

Structured, trauma-focused cognitive-behavioral therapy (CBT) techniques are widely considered an effective intervention for children who experienced sexual abuse. However, unstructured (i.e., nondirective) play/experiential techniques have a longer history of widespread promotion and are preferred by many practicing clinicians. No evidence is available, however, to determine how the integration of these techniques impacts treatment outcome. In this study, community-based clinicians who received training in a structured, trauma-focused cognitive-behavioral intervention administered pretreatment and posttreatment evaluations to 260 sexually abused children presenting with elevated posttraumatic stress. In addition, they completed a questionnaire describing the treatment techniques implemented with each child. Overall, significant improvement was observed for each of the six clinical outcomes. Regression analyses indicated that technique selection was a significant factor in posttreatment outcome for posttraumatic stress, dissociation, anxiety, and anger/aggression. In general, a greater utilization of the structured CBT techniques was related to lower posttreatment scores, whereas a higher frequency of play/experiential techniques was associated with higher posttreatment scores. However, no interaction effects were observed. The implication of these findings for clinical practice and future research are examined.
Drug–drug interactions in patients receiving tyrosine kinase inhibitors
Authors: Keller Kristine L , Franquiz Miguel J , Duffy Alison P , Trovato James A
Published: December 2016

Rationale

Tyrosine kinase inhibitors are increasingly used in the treatment of cancer. Drug interactions involving tyrosine kinase inhibitors are commonly encountered in clinical practice. The objective of this study was to describe the frequency of tyrosine kinase inhibitor-associated drug interactions among a cohort of oncology patients.

Methods

Adult patients were included who presented to either of two outpatient oncology practices and were prescribed a tyrosine kinase inhibitor during 2 January 2013 to 1 January 2015. Demographic and medication data were abstracted from electronic medical records. Lexicomp®, Micromedex Solutions®, and medication labeling were utilized to identify potential interactions between tyrosine kinase inhibitors and concomitant medications. Interactions were then assessed by the investigators for clinical significance. The primary outcome was the frequency of significant drug interactions involving tyrosine kinase inhibitors and concomitant medications. Secondary outcomes included describing the nature and clinical impact of interactions, and describing interactions by medication class.

Results

A total of 356 patients were identified for analysis, in whom 244 potential interactions were identified, and 109 (44.7%) of which were considered severe. Decreased tyrosine kinase inhibitor absorption due to acid suppressive therapy and CYP3A4 interactions were the most frequent mechanisms of potential subtherapeutic and supratherapeutic concentrations, respectively. Potential clinical consequences included QTc prolongation ( n = 53, 48.6%), decreased tyrosine kinase inhibitor concentration ( n = 53, 48.6%), and increased tyrosine kinase inhibitor concentration ( n = 3, 2.8%).

Conclusions

Safer alternative therapy and/or more frequent clinical monitoring should be considered if an interaction poses a significant risk of increased tyrosine kinase inhibitor toxicity or decreased tyrosine kinase inhibitor efficacy. Oncology pharmacists can play a role in screening for tyrosine kinase inhibitor-associated interactions, recommending alternative therapies or dosing strategies, and monitoring tyrosine kinase inhibitor efficacy and toxicity.
Implicit and Explicit Evaluations of Sexual Aggression Predict Subsequent Sexually Aggressive Behavior in a Sample of Community Men
Authors: Hermann Chantal A. , Nunes Kevin L.
Published: December 2016

The current longitudinal study explored the extent to which implicit and explicit evaluations of sexual aggression predict subsequent sexually aggressive behavior. Participants (248 community men recruited online) completed measures of implicit and explicit evaluations and self-reported sexually aggressive behavior at two time points, approximately 4 months apart. Implicit and explicit evaluations of sexual aggression at Wave 1 had small significant and independent predictive relationships with sexually aggressive behavior at Wave 2, while controlling for sexually aggressive behavior at Wave 1. This is the first study to test whether implicit and explicit evaluations predict subsequent sexually aggressive behavior. Our findings are consistent with the possibility that both implicit and explicit evaluations may be relevant for understanding and preventing subsequent sexually aggressive behavior. If these findings can be replicated, evaluations of sexual aggression should be studied with more rigorous methodology (e.g., experimental design) and correctional/forensic populations, and possibly addressed in risk assessment and interventions.
Does Racial/Ethnic Identity Influence the Effectiveness of a Community Health Worker Intervention for African American and Latino Adults With Type 2 Diabetes?
Authors: Murayama Hiroshi , Spencer Michael S. , Sinco Brandy R. , Palmisano Gloria , Kieffer Edith C.
Published: December 2016

Background. Community health worker (CHW) interventions are known to be an effective strategy to improve health behaviors and outcomes in relation to diabetes, particularly for racial/ethnic communities. Although understanding the function of identity with same race/ethnicity among clients of CHW interventions could contribute to more effective program design, few studies have explored whether levels of racial/ethnic identity among participants can influence the effectiveness of CHW interventions. Aims. We tested the relationship between level of racial/ethnic identity and changes in hemoglobin A1c and diabetes self-efficacy among low-income African American and Latino adults with type 2 diabetes who participated in a CHW intervention. Methods. Data came from a randomized controlled trial of the CHW intervention with a 6-month delayed control group design for 164 African American and Latino adults in Detroit, Michigan. Racial/ethnic identity was created from two items and classified into high, moderate, and low. We combined the two arms (immediate and delayed) into one because there was no significant difference in baseline characteristics, other than age and postintervention self-efficacy, and multivariable linear regression models were applied in the analysis. Results. Possession of high racial/ethnic identity was associated with greater improvement both in hemoglobin A1c and diabetes self-efficacy at 6 months. Moreover, among those with high hemoglobin A1c at preintervention, higher racial/ethnic identity had a greater impact on hemoglobin A1c improvement, compared with those with lower identity. Conclusions. This study suggests the importance of considering racial/ethnic identity of the participants in designing and operating the CHW intervention for racial/ethnic minority population.
The Emergent Field of Organizational Frontlines
Authors: Singh Jagdip , Brady Michael , Arnold Todd , Brown Tom
Published: December 2016

Advances in frontline interface technologies and devices are profoundly disrupting how organizations and customers interact to create and exchange value. Where once customer interactions were limited in variety, multiplicity, and complexity, today’s broadband Internet and wireless connection technologies defy limitations to enable organization-customer interactions of ever-increasing diversity and consistency across multiple points of customer contact. No longer are the frontlines inert backgrounds for organizational action involving customers; rather, they are evolving as sites of vibrant innovations and interventions that engage customers, enhance customer experiences, and motivate value (co)creation. To anchor this emergent field, we define organizational frontlines at the intersection of interfaces and interactions that connect organizations and their customers. We historically trace the use of “organizational frontlines” from its initial application in military and management domains through its current and proposed position in both academic and practitioner contexts. We illustrate our definition to highlight research opportunities and underscore the strategic implications for effectively managing organizational frontlines to secure competitive advantage. We conclude with a discussion of special issue articles and the exciting agenda they collectively engage.
Implementation of Ultraviolet Radiation Safety Measures for Outdoor Workers
Authors: Maguire Erin , Spurr Alison
Published: December 2016

Ultraviolet radiation (UVR) poses a major risk for outdoor workers, putting them at greater risk for skin cancer. In the general population, the incidence of both melanoma and nonmelanoma skin cancers is increasing. It is estimated that 90% of skin cancers in Canada are directly attributable to UVR exposure, making this cancer largely preventable with the appropriate precautions. A scoping review was conducted on the barriers and facilitators to UVR safety in outdoor workers to elucidate why these precautions are not in use currently. We discuss these results according to the Hierarchy of Controls as a means to outline effective and feasible prevention strategies for outdoor workers. In doing so, this review may be used to inform the design of future workplace interventions for UVR safety in outdoor workers to decrease the risk of skin cancer in this vulnerable population.
The Accuracy of Measurements of Nonmelanoma Skin Cancer Sizes Referred to the Mohs Surgery Clinic
Authors: To Derek , Macdonald Jillian
Published: December 2016

Background:

Tumour size is a crucial factor used to plan Mohs procedures. Larger tumours require more time and stages of excision, and they need to be triaged as a higher priority. Therefore, the accuracy in measurement of tumour size is critical.

Objective:

To investigate if there is a significant difference in accuracy of tumour measurements in referrals between dermatologists and nondermatologists.

Methods and Materials:

Performed a retrospective study of 180 referrals from dermatologists and 47 referrals from nondermatologists to The Ottawa Hospital Riverside Mohs Surgery Clinic. We compared the mean size difference of tumours between the preoperative size and the size reported on referral.

Results:

Average reported size upon referral of nonmelanoma skin cancer (NMSC) was 1.39 cm2 and 1.35 cm2 from dermatologists and nondermatologists, respectively ( P = .881). During the preoperative assessment, tumour sizes were 0.65 cm2 and 1.45 cm2 larger than that reported from dermatologists and nondermatologists, respectively ( P < .05). The duration between referral and preoperative assessment was 3 to 4 months for both groups ( P = .26).

Conclusion:

The accuracy of tumour measurements between dermatologists and nondermatologists differed significantly, as nondermatologists underestimated the size of NMSCs. This directly affects triaging patients and operative management in Mohs surgery. To compensate for size underestimation, early and prompt referrals of NMSCs from nondermatologists are warranted.
Dynamic analysis of a 2-lobe geometrically imperfect journal bearing system
Authors: Jain Dharmendra , Sharma Satish C
Published: December 2016

The present study is concerned with the linear and nonlinear transient motion analysis of a 2-lobe geometrically imperfect hybrid journal bearing system compensated with constant flow valve restrictor. The trajectories of journal center motion for a geometrically imperfect rotating journal (barrel, bellmouth and undulation type journal) have been numerically simulated by solving the linear and nonlinear equations of motion of journal center using a fourth order Runga–Kutta method. The numerically computed results for the journal center trajectories indicate that the 2-lobe bearing [Formula: see text] is more stable with geometrically imperfect journal as compared to the circular bearing with imperfect journal.
Performance characteristics of a three-pad hydrostatic squeeze film damper compensated with new electrorheological valve restrictors
Authors: Abed Asma , Bouzidane Ahmed , Thomas Marc , Zahloul Hamou
Published: December 2016

A numerical analysis is carried out in order to investigate the effect of the electric field on the performance characteristics of a three-pad hydrostatic squeeze film damper compensated with new electrorheological valve restrictors. The bearing design is composed of three identical hydrostatic bearing pads. Each hydrostatic bearing pad is fed with a negative electrorheological fluid through an electrorheological valve. The numerical analysis showed that the viscosity of a smart fluid inside to each electrorheological valve can be controlled by using an electric field in order to control the static and dynamic characteristics. The results presented in this study can be made more useful to control rotor vibrations and force transmissibility especially around the critical speeds.
Residential area and physical activity: A multi-level study of 68,000 adults in Stockholm County
Authors: Svensson Anna C. , Stjernschantz Forsberg Joanna , Seblova Dominika , Lager Anton
Published: December 2016

Aim: To determine whether there are systematic differences in physical activity between residential areas after extensive control for sociodemographic factors at the individual level. Methods: Multi-level regressions of walking/bicycling, sedentary activities, household work and exercise were carried out in a representative sample of 68,303 adults in 39 residential areas in Stockholm County, first adjusting at the individual level for country of birth, sex, age, education, occupational class and income. The type of housing was then considered at the individual level or, for walking/bicycling and exercise, at both the individual and area levels (as a measure of area density). Results: After adjustment for sociodemographic factors, differences between residential areas remained in walking/bicycling, corresponding to 0.27 SD, or 50 min/week between the most and least active areas. Forty per cent of this difference could be explained by the type of housing at the area level. For sedentary activities and household work, respectively, much of the variation that remained after adjustment for sociodemographic factors was, in turn, explained by the type of housing at the individual level, leaving a difference of 0.16 SD (80 min/week) and 0.13 SD (60 min/week), respectively. For exercise, the corresponding difference was 0.11 SD (11 min/week, not sensitive to housing). Conclusions: Area level factors may influence walking/bicycling. High area density was associated with more activity. However, high density also comes with a type of housing (apartments) that is associated with less household work and, surprisingly, more sedentary activities, introducing a challenging trade-off. The differences in exercise were smaller than for all other types of activities.
Consuming wellness, producing difference: The case of a wellness center in India
Authors: Annavarapu Sneha
Published: December 2016

Over the past decade, there has been a discernible rise in the number of wellness centers and fitness studios in urban cities in India. These centers are spatial manifestations of the rise in a particular type of “self-care” regimes and “body projects” in modern social imaginary prevalent in urban India, predominantly enabled by the rise of middle-class consumer culture. While the literature on fitness spaces and wellness clubs in Western contexts is instructive to a very large extent, the local particularities of consumption experiences in non-Western contexts require contextualized empirical research in order to better inform modern theories of consumption. This article is a study of a wellness center in the South Indian city of Chennai. Using ethnographic methods, I attempt to unpack the experience of consuming wellness in a space that ostensibly claims to remedy the ills of modern living while doing so in a culturally traditional and “Indian” manner. I show how the experiences of predominantly middle-class consumers here are dictated not by a sentimental attachment to tradition or locality, but by a vocabulary of speaking that primarily favors a language of consumer choice and rational decision-making. Whether or not that is the case, the way in which consumption of an “Indian” brand of wellness occurs demonstrates the stronghold of the language of consumer choice making the space at the wellness center a performative arena for self-identity formation to occur.
Evidence-Based Interventions for Increasing Work Participation for Persons With Various Disabilities
Authors: Smith Diane L. , Atmatzidis Katie , Capogreco Marisa , Lloyd-Randolfi Dominic , Seman Victoria
Published: December 2016

Title I of the Americans With Disabilities Act prohibits discrimination in employment; however, 26 years later, employment rates for persons with disabilities hover at 34%. This systematic review investigates the effectiveness of evidence-based interventions to increase employment for people with various disabilities. Forty-six articles met the inclusion criteria for evidence-based interventions. The majority of studies assessed interventions for persons with mental health disabilities. Strong evidence was found for ongoing support and work-related social skills training prior to and during competitive employment for persons with mental health disabilities. Moderate evidence supported simulation and use of assistive technology, especially apps for cueing and peer support to increase work participation for persons with intellectual disabilities, neurological/cognitive disabilities, and autism spectrum disorder. Many of the strategies to increase work participation were appropriate for occupational therapy intervention. Suggestions were made for research, specifically looking at more rigorous evaluation of strategies in the long term.
eDAAAS: Efficient distributed anonymous authentication and access in smart homes
Authors: Braeken An , Porambage Pawani , Stojmenovic Milos , Lambrinos Lambros
Published: December 2016

The smart home field has witnessed rapid developments in recent years. Internet of Things applications for the smart home are very heterogeneous and continuously increasing in number, making user management from a security perspective very challenging. Moreover, the resource-constrained nature of most of the devices implies that any security mechanisms deployed should be lightweight and highly efficient. In this article, we propose an authentication scheme based on symmetric key cryptography, combined with a capability-based access control system, to provide the different stakeholders (residents, recurring guests, or temporary guests) end-to-end secure access to the Internet of Things devices in a smart home, managed by the home owner in an anonymous way. The operations in our scheme only include a small number of communication phases and protect the identities of the entities involved (i.e. stakeholders and end-nodes) from any outside entity. The proposed scheme ensures that even if the stakeholder’s device or the Internet of Things device is attacked, the system remains secure.
Effect of diabetes mellitus on the clinical outcome of lower limb arterial bypass surgery: A propensity score analysis
Authors: Lazaris Andreas M , Kontopantelis Evangelos , Antonopoulos Konstantinos , Mantas Georgios , Kouvelos Georgios , Moulakakis Konstantinos , Matsagkas Miltiadis I , Vasdekis Spyros N , Geroulakos George
Published: December 2016

Objectives

Diabetic patients who undergo lower limb arterial bypass surgery are considered to have a worse clinical outcome compared to non-diabetics. The aim of the study was to test this hypothesis after applying propensity score matching analysis.

Patients and methods

A total of 113 consecutive lower limb bypass procedures (55 diabetic and 58 non-diabetic) were evaluated regarding their clinical outcome. Endpoints of the study included amputation-free survival, limb salvage, patency and patients’ survival up to 36 months post-procedure. After propensity score matching analysis, two new groups, diabetic and non-diabetic, of 31 limbs in each one were created, both equivalent regarding all baseline characteristics.

Results

Between the propensity score matching groups, the amputation-free survival was 68.8% in the non-diabetic and 37.7% in the diabetic group at 36 months ( p = 0.004). Similarly, the survival was 88.6% and 57.6%, respectively, in the two groups at the same time point ( p = 0.01). On the contrary, no difference was found in patency (58.3% vs. 56%) and in limb salvage rate (74.1% vs. 60.8%).

Conclusions

Lower limbs arterial bypass surgery has similar results regarding patency and limb salvage rate in diabetic and non-diabetic patients. On the contrary, mortality is worse in diabetic patients, this affecting negatively their amputation-free survival.
How school context and educator characteristics predict distributed leadership
Authors: Liu Yan , Bellibas Mehmet Sukru , Printy Susan
Published: December 2016

Distributed leadership is a dynamic process and reciprocal interaction of the leader, the subordinates and the situation. This research was inspired by the theoretical framework of Spillane in order to contextualize distributed leadership and compare the variations using the Teaching and Learning International Survey 2013 data. The two-level structural equation model utilized the school contextual variables and staff characteristics as exogenous and endogenous variables simultaneously in order to investigate the reciprocal effects of these variables on each other, and the ultimate influences on the extent to which leadership is distributed. The results suggest mutual respect among staff, funding resource of the school, together with principal's gender and employment status, are critically important factors with regard to the extent of distributed leadership in a school.
Learning to mock – Challenging the teaching establishment
Authors: Gabriel Norman
Published: December 2016

There have been very few studies that apply the work of Mikhail Bakhtin and Norbert Elias to understand the underlying learning processes of young children. This article will explore the methodological similarities between Bakhtin’s ideas about the carnivalesque and Norbert Elias’s theory of established-outsider relations to explain how young children can undermine the authoritative discourses of teachers in preschool classrooms. It will focus on the playful mockery that young children display within their peer-groups to challenge teaching authority. I will argue that many of the humorous events produced by young children should be viewed as an attempt to violate their teachers’ expectations. Drawing attention to the utility of using humour as a special type of qualitative research tool illuminates the different ways that young children in different cultures can resist adult authority.
Treatment optimization for HIV/HCV co-infected patients
Authors: Scott Jake A. , Chew Kara W.
Published: December 2016

Human immunodeficiency virus (HIV) and hepatitis C virus (HCV) infections affect millions of persons around the globe and cause profound morbidity and mortality. A major intersection exists between these two epidemics, with HCV infection being more common in persons with HIV than in the general population, largely due to shared routes of transmission. HCV co-infection increases risk for liver- and non-liver-related morbidity and mortality, making HCV treatment a priority in HIV co-infected persons, but the treatment of HCV in co-infected patients has been daunting for multiple reasons. Until recently, HCV treatment has frequently been deferred due to the low rates of cure, significant adverse effects, burdensome duration of therapy and drug–drug interactions with HIV antiretroviral medications. Untreated HCV has resulted in significant health consequences for the millions of those infected and has led to multiple downstream impacts on our healthcare systems around the world. The development of a remarkable number of new HCV direct-acting agents (DAAs) that are significantly more efficacious and tolerable than the previous interferon-based regimens has transformed this important field of medicine, with the potential to dramatically reduce the burden of infection and improve health outcomes in this population. This review will summarize the epidemiology and clinical impact of HIV/HCV co-infection and current approaches to the treatment of HCV in HIV/HCV co-infected patients.
Submental thyroid ectopy might cause subclinical hypothyroidism in early childhood
Authors: Kocova Mirjana , Zdraveska Nikolina , Zdravkovska Maja , Anastasovska Violeta , Pop Gjorceva Daniela
Published: December 2016

Objective:

Thyroid ectopy is a rare condition resulting from abnormal embryologic development and migration of the gland. Sublingual is the most common thyroid ectopy; all other ectopic thyroid locations occur very rare. There are no reports in the literature that describe the clinical course of patients with congenital hypothyroidism due to thyroid ectopy.

Methods and Results:

We present a child with congenital hypothyroidism detected on neonatal screening which had a subclinical course during follow-up. Scintigraphy revealed submental thyroid ectopy, a rare ectopic location and no orthotopic thyroid gland.

Conclusion:

Our case is unique because of the rare ectopic thyroid location but also of the unexpected clinical course; however, further thyroid monitoring is required for the therapy adjustment and detection of any changes in the ectopic tissue.
Edutainment
Authors: Makarius Erin E.
Published: December 2016

Edutainment, while seemingly a new and trending idea, is quite simply the combination of education and entertainment, or improving learning by making it more engaging. What began as a way to teach children concepts in a fun way (e.g., School House Rock) has evolved into an integration of technology, design, and academics (e.g., TED talks). Technology allows educators to become edutainers more easily by providing user-friendly formats and digital distribution that facilitates the creation of specialized content. This article provides an overview of two edutainment technologies and how they can be used to enhance the learner experience. The general features of the programs are described as well as how they can be applied in a management classroom.
Magmatic, hydrothermal and subsolidus evolution of the agpaitic nepheline syenites of the Sushina Hill Complex, India: implications for the metamorphism of peralkaline syenites
Authors: Chakrabarty A. , Mitchell R. H. , Ren M. , Saha P. K. , Pal S. , Pruseth K. L. , Sen A. K.
Published: December 2016

The Proterozoic Sushina Hill Complex is the only agpaitic complex, reported from India and is characterized by a eudialyte-rinkite-bearing nepheline syenite. The complex is considered a ‘metamorphosed agpaitic complex'. This study describes the mineral assemblages formed during successive stages of evolution from magmatic to hydrothermal stages and low-temperature subsolidus re-equilibration assemblage. The primary-late magmatic assemblage is characterized by albite, orthoclase, unaltered nepheline, zoned diopside-hedenbergite, rinkite, late magmatic eudialyte and magnesio-arfvedsonite formed at ∼700°C with maximum aSiO2 of 0.60. In contrast, a deuteric assemblage (400-348°C) is represented by aegirine-jadeite-rich clinopyroxene, post-magmatic eudialyte, sodalite, analcime and the decomposition assemblages formed after eudialyte with decreasing aSiO2 (0.52-0.48). A further low-temperature subsolidus assemblage (≤250°C) represented by late-forming natrolite could be either related to regressive stages of metamorphism or a continuum of the subsolidus processes. Considering the P/T range of the greenschist - lower-amphibolite facies of metamorphism it is evident that the incorporation of a jadeite component within pyroxene is related to a subsolidus process between ∼400°C and 348°C in a silica deficient environment. We emphasize that the deuteric fluid itself acted as an agent of metamorphism and the decomposition assemblage formed after eudialyte is retained even after metamorphism due to the convergence of subsolidus and metamorphic domains. The formation of jadeite-rich aegirine is not considered to result from metamorphism. Overall it is near-impossible to discern any bona fide metamorphic textures or mineral assemblages in these syenites which appear to preserve a relict mineralogy regardless of their occurrence in country rocks which have experienced greenschist - amphibolite facies metamorphism. The Sushina complex is very similar in this respect to the Norra Kärr complex (Sweden).
The crystal chemistry of elsmoreite from the Hemerdon (Drakelands) mine, UK: hydrokenoelsmoreite-3C and hydrokenoelsmoreite-6R
Authors: Mills Stuart J. , Christy Andrew G. , Rumsey Mike S. , Spratt John
Published: December 2016

A crystallographic and chemical study of two 'elsmoreite' samples (previously described as 'ferritungstite') from the Hemerdon mine (now known as the Drakelands mine), Devon, United Kingdom has shown them to be two different polytypes of hydrokenoelsmoreite. Hydrokenoelsmoreite-3C(HKE-3C) crystallizes in space group , with the unit-cell parameter a = 10.3065(3) Å. Hydrokenoelsmoreite-6R (HKE-6R) crystallizes in space group , with the unit-cell parameters a = 7.2882(2) Å and c = 35.7056(14)Å. Chemical analyses showed that both polytypes have Na and Fe/Al substitution giving the formulae: (Na0.28Ca0.04K0.02(H2O)0.20⁏1.46)∑2.00(W1.47Fe3+0.32Al0.21As5+0.01)∑2.00[O4.79(OH)1.21]∑6.00·(H2O)(3C) and (Na0.24Ca0.04K0.03(H2O)0.63⁏1.06)∑2.00(W1.42Fe3+0.49Al0.08As5+0.01)∑2.00[O4.65(OH)1.35]∑6.00·(H2O)(6R). The doubling of the unit cell in the 6R phase is due to ordering of Na and ( ,H2O) in the A site; no long-range ordering is observed between W and Fe/Al in the B site.
Ferro-ferri-hornblende from the Traversella mine (Ivrea, Italy): occurrence, mineral description and crystal-chemistry
Authors: Oberti Roberta , Boiocchi Massimo , Hawthorne Frank C. , Ball Neil A. , Cámara Fernando , Pagano Renato , Pagano Adriana
Published: December 2016

Ferro-ferri-hornblende is a new member of the amphibole supergroup (IMA-CNMNC 2015-054). It has been found in a rock specimen from the historical collection of Leandro De Magistris, which was collected at the Traversella mine (Val Chiusella, Ivrea, Piemonte, Italy). The specimen was catalogued as ‘speziaite', and contains a wide range of amphibole compositions from tremolite/actinolite to magnesio-hastingsite. The end-member formula of ferro-ferri-hornblende is A□BCa2c(Fe+Fe3+)T(Si7Al) O22W(OH)2 , which requires SiO2 43.41, Al2O3 5.26, FeO 29.66, Fe2O3 8.24 CaO 11.57, H2O 1.86, total 100.00 wt.%. The empirical formula derived from electron microprobe analysis and single-crystal structure refinement for the holotype crystal is A(Na0.10K0.13)
Σ=0.23B(Ca 1.93Na0.07)Σ=2.00C(Mg1.16Fe2+3.21Mn0.O6Fe3+0.45
Al0.12Ti 0.01)Σ=5.01T(Si7.26Al0. 74)Σ=8.00 O22W(OH1.89F0.01C10.10)Σ=2.00- Ferro-ferri-hornblende is biaxial (-), with α = 1.697(2), P = 1 .722(5), γ = 1.726(5) and 2V (meas.) = 35.7(1.4)°, 2V (calc.) = 43.1°. The unit-cell parameters are a = 9.9307(5), b = 18.2232(10), c = 5.3190(3) Å, β = 104.857(1)°, V= 930.40 (9) Å3, Z= 2, space group C2/m. The a:b:c ratio is 0.545:1:0.292. The strongest eight reflections in the powder X-ray pattern [d values (in Å), I, (hkl)] are: 8.493, 100, (110); 2.728, 69, (151); 3.151, 47, (310); 2.555, 37, (); 2.615, 32, (061); 2.359, 28, (); 3.406, 26, (131); 2.180, 25, (261). Type material is deposited in the collections of the Museo di Mineralogia, Dipartimento di Scienze della Terra e dell'Ambiente, Università di Pavia, under the catalogue number 2015-01. Sample M/U15285 from the historical collection of Luigi Colomba, presently at the Museo Regionale di Scienze Naturali di Torino, was also checked, and the presence of ferro-ferri-hornblende was confirmed.
Penberthycroftite, [Al6(AsO4)3(OH)9(H2O)5]·8H2O, a second new hydrated aluminium arsenate mineral from the Penberthy Croft mine, St. Hilary, Cornwall, UK
Authors: Grey I. E. , Betterton J. , Kampf A. R. , Macrae C. M. , Shanks F. L. , Price J. R.
Published: December 2016

Penberthycroftite, ideally [Al6(AsO4)3(OH)9(H2O)5]·8H2O, is a new secondary aluminium arsenate mineral from the Penberthy Croft mine, St. Hilary, Cornwall, England, UK. It occurs as tufts of white, ultrathin (sub-micrometre) rectangular laths, with lateral dimensions generally < 20 μm. The laths are flattened on {010} and elongated on [100]. The mineral is associated with arsenopyrite, bettertonite, bulachite, cassiterite, chalcopyrite, chamosite, goethite, liskeardite, pharmacoalumite–pharmacosiderite and quartz. Penberthycroftite is translucent with a white streak and a vitreous to pearly lustre. The calculated density is 2.18 g/cm3. Optically, only the lower and upper refractive indices could be measured, 1.520(1) and 1.532(1) respectively. No pleochroism was observed. Electron microprobe analyses (average of 14) with H2O obtained from thermogravimetric analysis and analyses normalized to 100% gave Al2O3 = 31.3, Fe2O3 = 0.35, As2O5 = 34.1, SO3 = 2.15 and H2O = 32.1. The empirical formula, based on nine metal atoms and 26 framework anions is [Al5.96Fe0.04(As0.97Al0.03O4)3(SO4)0.26(OH)8.30(H2O)5.44](H2O)7.8, corresponding to the ideal formula [Al6(AsO4)3(OH)9(H2O)5]·8H2O. Penberthycroftite is monoclinic, space group P21/c with unit-cell dimensions (100 K): a = 7.753(2) Å, b = 24.679(5) Å, c = 15.679(3) Å and β = 94.19(3)°. The strongest lines in the powder X-ray diffraction pattern are [dobs in Å(I) (hkl)] 13.264(46) (011); 12.402(16)(020); 9.732(100)(021); 7.420(28)(110); 5.670(8)(130); 5.423(6)(1̄31). The structure of penberthycroftite was solved using synchrotron single-crystal diffraction data and refined to wRobs = 0.059 for 1639 observed (I> 3σ(I)) reflections. Penberthycroftite has a heteropolyhedral layer structure, with the layers parallel to {010}. The layers are strongly undulating and their stacking produces large channels along [100] that are filled with water molecules. The layers are identical to those in bettertonite, but they are displaced relative to one another along [001] and [010] such that the interlayer volume is decreased markedly (by ∼10%)relative to that in bettertonite, with a corresponding reduction in the interlayer water content from 11 H2O per formula unit (pfu) in bettertonite to 8 H2O pfu in penberthycroftite.