bluuebunny/crossref_metadata_2025 huggingface dataset:
Perceived Organizational Support in Health Care: The Importance of Teamwork and Training for Employee Well-Being and Patient Satisfaction
Authors: Ogbonnaya Chidiebere , Tillman C. Justice , Gonzalez Katerina
Published: April 2018

This study uses organizational support theory to examine how health care employees’ perceptions of teamwork influence patient satisfaction through a serial mediation involving employee well-being and intention to remain. The study also examines the extent to which the training that employees receive might enhance these relationships. Hypothesized assumptions are tested by multilevel analysis using data from 66,930 employees nested within 162 organizations from the British National Health Service (NHS). Our findings indicate that teamwork has a positive indirect association with patient satisfaction through employee well-being (i.e., job satisfaction and work engagement) and intention to remain, in sequence. The strength of this indirect relationship is also enhanced by training provided to employees by the organization.
Forgiveness and trust dynamics on social networks
Authors: Laifa Meriem , Akrouf Samir , Mammeri Ramdane
Published: April 2018

Social media users can easily be offended or hurt on those platforms, which leads to discomfort and health issues such as stress and anxiety. Forgiveness plays an important role to maintain healthy online relationships, which is the central constituent of social dynamics, from cooperation to social cohesion. While most prior studies have focused on analyzing forgiveness factors in offline settings using statistical methods, this study offers a new perspective using a two-staged approach whereby a research model was tested using structural equation modeling (SEM), and then the results were used as inputs for artificial neural network (ANN) and fuzzy logic (FL) models. An agent-based simulation was then performed to shed light on a possible use of the implemented models. Combining ANN and FL provided more accurate prediction results. In addition, simulation experiments call attention to the potential benefits of forgiveness in maintaining connectedness in a social network. The main purpose of this investigation was to evaluate the applicability of soft computing techniques on forgiveness prediction. Instead of relying on data mining techniques, we looked into questions that can improve our understanding of how society works in a digital age. In addition, this study provides an interesting example of a different and insightful way of doing computational social science that is useful to both researchers and practitioners.
Resilient gossip-inspired all-reduce algorithms for high-performance computing: Potential, limitations, and open questions
Authors: Casas Marc , Gansterer Wilfried N , Wimmer Elias
Published: April 2018

We investigate the usefulness of gossip-based reduction algorithms in a high-performance computing (HPC) context. We compare them to state-of-the-art deterministic parallel reduction algorithms in terms of fault tolerance and resilience against silent data corruption (SDC) as well as in terms of performance and scalability. New gossip-based reduction algorithms are proposed, which significantly improve the state-of-the-art in terms of resilience against SDC. Moreover, a new gossip-inspired reduction algorithm is proposed, which promises a much more competitive runtime performance in an HPC context than classical gossip-based algorithms, in particular for low accuracy requirements.
Intraocular light scatter in patients on topical intraocular pressure–lowering medication
Authors: Pérez-Bartolomé Francisco , Martínez de la Casa Jose María , Arriola-Villalobos Pedro , Fernández-Pérez Cristina , García-Feijoó Julián
Published: April 2018

Purpose:

To quantify ocular light scattering in patients under treatment with intraocular pressure–lowering eye-drops.

Methods:

In this prospective, observational, cross-sectional case series study, 160 eyes of 160 patients with primary open angle glaucoma or primary ocular hypertension were consecutively recruited from our Glaucoma Department over 7 months. In total, 46 eyes of 46 healthy volunteers matched for age and sex served as the control group. The variables recorded in a single visit were as follows: drug and number of drops per day, treatment duration, OXFORD corneal staining grade, lower tear meniscus height as measured by spectral domain optical coherence tomography, ocular redness and non-invasive tear breakup time measured with the Oculus Keratograph 5M, ocular surface disease index questionnaire score and objective scatter index through a double-pass technique (Optical Analysis System II).

Results:

Objective scatter index was higher in the patient group (3.1, interquartile range = 1.8–5.47) than in the control group (1.95; interquartile range = 0.7–5; p = 0.017). In a multiple linear regression model, non-invasive tear breakup time was identified as the most influential variable on light scatter (mean ratio = −1.015; p = 0.003; 95% confidence interval = −1.025 to −1.005). No correlation with objective scatter index was observed for number of daily eye-drops, preservative concentration or treatment duration.

Conclusion:

Participants on anti-glaucoma medication showed a significantly higher objective scatter index than control group individuals. In the treated patient group, a lower non-invasive tear breakup time was associated with a higher objective scatter index. This suggests that lubricating eye-drops to improve tear breakup time could also improve vision quality in these patients by diminishing light scattering.
Research on the influence of micropits structure on the tribological performance of friction pairs
Authors: Wang Li-li , Guo Shao-hui , Wei Yu-liang , Yuan Guo-teng
Published: April 2018

According to the traditional lubrication theory, the smoother the friction pairs the better the friction performance. But in recent years, a large number of theoretical and experimental results have shown that the friction surface with microstructure can effectively improve the tribological performance of friction pairs. For smooth surface and micro-dimple surface with different shapes of friction pairs, the two-dimensional finite element model is established based on the Navier–Stokes calculation equation of the fluid, and the effect of hydrodynamic effects arising from micro-dimple structure with different shapes on friction performance of friction pairs is analyzed. Through friction and wear testing, the friction properties of smooth surface and micro-dimple surface friction pairs are compared and analyzed. Theoretical simulation and experimental verification show that the surface of friction pairs with micropits can obviously improve the lubrication conditions of friction pairs and effectively improve the tribological properties of friction pairs.
Student game-play performance in invasion games following three consecutive hybrid Sport Education seasons
Authors: Farias Cláudio , Mesquita Isabel , Hastie Peter Andrew
Published: April 2018

This study was the first to examine game performance according to the tactical structures of invasion games throughout three consecutive model-based units. Twenty-six seventh grade students participated in three Sport Education seasons (basketball, handball, and football) taught through the tactical framework Invasion Games Competence model. Team membership remained the same throughout the three seasons and pre- and post-test game-play of three-a-side games involving the same opponent teams was assessed. Measures included overall game performance and four tactical structures indices: creating scoring opportunities (CSO); setting up an attack (SUA); prevent CSO; and prevent SUA. A 3 (group) × 2 (time) repeated measures analysis of variance tested differences between sports in the five performance measures. Correlations between the four tactical structures and game performance were tested and a hierarchical multiple regression analysis was used to examine the predictive weight of the four tactical structures indices on game performance. While there were significant improvements in game performance of handball and football, but not in basketball, the breaking down of performance into tactical structures indices showed improvements in all seasons. The correlations increased across time between tactical structures indices and game performance and the predictive model of game performance extended to include the four tactical structures. Performance improvements were associated with contextual features of extended team membership and consequent attunement of game-play interpersonal dynamics, nature of peer-teaching mediation, and game forms design. Future research should examine the effects on game performance development of student augmented participation in problem-solving processes and asymmetric opposition game forms.
The Skinscape
Authors: Howes David
Published: April 2018

This article theorizes the dermalogical turn – heralded by the publication of this special issue – from a sensory studies perspective. Sensory studies involves a cultural approach to the study of the senses and a sensory approach to the study of culture. The skin is both an object and means of perception. Understandings of the skin and of touch vary across cultures: the skin may be seen as social rather than individual, as porous instead of an envelope, and as knowledgeable or sentient in its own right rather than subservient to the eye or brain (i.e. cognition). These contrasting understandings have important implications for practice. Haptic Field, a performative sensory environment designed by Chris Salter, which enables the visitor to try on a second skin, is discussed as a means of shaking up conventional Western understandings of the skin and of touch, and facilitating the communication of skin knowledge across cultures.
Aspirin suppresses components of lymphangiogenesis and lymphatic vessel remodeling by inhibiting the NF-κB/VCAM-1 pathway in human lymphatic endothelial cells
Authors: Prangsaengtong Orawin , Jantaree Phatcharida , Lirdprapamongkol Kriengsak , Ngiwsara Lukana , Svasti Jisnuson , Koizumi Keiichi
Published: April 2018

Lymphangiogenesis is the process of new vessel formation from pre-existing lymphatic vessels. The process mainly involves cell adhesion, migration, and tubule formation of lymphatic endothelial cells. Tumor-induced lymphangiogenesis is an important factor contributing to promotion of tumor growth and cancer metastasis via the lymphatic system. Finding the non-toxic agents that can prevent or inhibit lymphangiogenesis may lead to blocking of lymphatic metastasis. Recently, aspirin, a non-steroidal anti-inflammatory drug (NSAID), has been reported to inhibit in vivo lymphangiogenesis in tumor and incision wound models, but the mechanisms of actions of aspirin on anti-lymphangiogenesis have been less explored. In this study, we aim to explore the mechanism underlying the anti-lymphangiogenic effects of aspirin in primary human dermal lymphatic microvascular endothelial (HMVEC-dLy) cells in vitro. Pretreatment of aspirin at non-toxic dose 0.3 mM significantly suppressed in vitro cord formation, adhesion, and the migration abilities of the HMVEC-dLy cells. Western blotting analysis indicated that aspirin decreased expression of vascular cell adhesion molecule-1 (VCAM-1), at both protein and mRNA levels, and these correlated with the reduction of NF-κB p65 phosphorylation. By using NF-κB inhibitor (BAY-11-7085) and VCAM-1 siRNA, we showed that VCAM-1 expression is downstream of NF-κB activation, and this NF-κB/VCAM-1 signaling pathway controls cord formation, adhesion, and the migration abilities of the HMVEC-dLy cells. In summary, we demonstrate the potential of aspirin as an anti-lymphangiogenic agent, and elucidate its mechanism of action.
Blunt Pharyngoesophageal Injuries: Current Management Strategies
Authors: Barmparas G. , Navsaria P. H. , Serna-Gallegos D. , Nicol A. J. , Edu S. , Sayari A. A. , Margulies D. R. , Ley E. J.
Published: April 2018

Background:

Blunt pharyngoesophageal injuries pose a management challenge to the trauma surgeon. The purpose of this study was to explore whether these injuries can be managed expectantly without neck exploration.

Methods:

The National Trauma Databank datasets 2007–2011 were reviewed for blunt trauma patients who sustained a pharyngeal injury, including an injury to the cervical esophagus. Patients who survived over 24 h and were not transferred from other institutions were divided into two groups based on whether a neck exploration was performed. Outcomes included mortality and hospital stay.

Results:

A total of 545 (0.02%) patients were identified. The median age was 18 years and 69% were male. Facial fractures were found in 16%, while 13% had an associated traumatic brain injury. Of the 284 patients who survived over 24 h and were not transferred from another institution, 65 (23%) underwent a neck exploration. The injury burden was significantly higher in this group as indicated by the higher median Injury Severity Score (17 vs 10, p < 0.01) and need for intensive care unit admission (75% vs 31%, p < 0.01). The overall mortality was 2%: 3.1% for neck explorations versus 1.6% for conservative management (adjusted p = 0.54). Neck exploration patients were more likely to remain longer in the hospital (median 13 vs 10 days, adjusted p = 0.03).

Conclusion:

Pharyngoesophageal injuries are rare following blunt trauma. Only a quarter require a neck exploration and this decision appears to be dictated by the injury burden. Selective non-operative management based on clinical status seems to be feasible and is not associated with increased mortality.
Abdominal Drainage After Laparoscopic Appendectomy in Children: An Endless Controversy?
Authors: Aneiros Castro B. , Cano I. , García A. , Yuste P. , Ferrero E. , Gómez A.
Published: April 2018

Background:

Routine prophylactic abdominal drains after laparoscopic appendectomy for perforated appendicitis in children are still controversial. Throughout the history of surgery, potential benefits of the abdominal drains have been described. However, in recent studies, no benefits were observed and serious complications have been reported.

Methods:

From January 2000 to December 2013, all charts of the pediatric patients who underwent laparoscopic appendectomy in our tertiary center were revised. The data from 1736 appendectomies were analyzed. We only included those patients with perforated appendicitis treated with early appendectomy (n = 192). Prophylactic drains were established according to the surgeon’s preference. The sample was divided into two groups, those with drain (n = 117) and those without drain (n = 75). Demographics, operative findings, and postoperative outcomes were analyzed in both groups.

Results:

Of all patients, 121 were male and 71 were female with a mean age of 7.77 ± 3.4 years. There were not statistically significant differences between the groups in gender (p = 0.82) and mean age (p = 0.31). There were no statistically significant differences between the two groups in the rate of intra-abdominal abscess, wound infection, and bowel obstruction. However, the drainage group has been statistically associated with an increased requirement of antibiotic and analgesic medication, fasting time, operative time, and length of hospital stay.

Conclusion:

The prophylactic use of abdominal drainage after laparoscopic appendectomy for perforated appendicitis in children does not prevent postoperative complications and may be associated with negative outcomes. Prospective randomized studies will be necessary to verify this question.
Initial Electromyography Fails to Predict Long-Term Outcome of Isolated Serratus Palsy
Authors: Vastamäki M. , Vastamäki H. , Pikkarainen V. , Ristolainen L.
Published: April 2018

Background and Aims:

The course of isolated serratus palsy is difficult to predict, especially if, in initial electromyographic examination, long thoracic nerve function is totally absent. How initial electromyography correlates with long-term outcome of isolated serratus palsy is unknown. We evaluated initial electromyographic examinations of isolated serratus palsy patients and compared these to their long-term outcome. We hypothesized that long-term outcome after electromyographic examination–verified partial nerve injuries is better than that seen in cases of total nerve injuries.

Patients and Methods:

We retrospectively reviewed 90 patients with isolated serratus palsy and with initial electromyographic examination treated by brace or observation only, by determining pain, range of motion, and degree of scapular winging after a mean follow-up of 17.8 years.

Results:

Initial electromyographic examination showed total denervation in 21 cases (22%), partial severe denervation in 30 (33%), and partial moderate or slight denervation in 39 (44%). Recovery of serratus muscle function occurred in 17/21 cases (81%) of total denervation and in 47/69 cases (68%) of partial denervation, p = 0.247. Mean flexion in total denervation recovered to 152° and in partial to 157°, p = 0.301, and abduction to 173° and 174°, p = 0.970. In total denervation, 60% of patients were pain-free, in partial, 48%, p = 0.338. The duration of scapular winging among those 42 who subjectively recovered averaged 15.1 months, in 13 patients with total denervation 15.9 months, and in 29 patients with partial denervation 14.7 months (p = 0.599).

Conclusion:

Initial electromyographic examination does not predict clinical outcomes: ROM, pain, scapular winging and strength, but partial denervation may negatively predict subjective outcome.
Broadening the debate on creativity and dementia: A critical approach
Authors: Bellass Sue , Balmer Andrew , May Vanessa , Keady John , Buse Christina , Capstick Andrea , Burke Lucy , Bartlett Ruth , Hodgson James
Published: April 2018

In recent years there has been a growing interest in person-centred, ‘living well’ approaches to dementia, often taking the form of important efforts to engage people with dementia in a range of creative, arts-based interventions such as dance, drama, music, art and poetry. Such practices have been advanced as socially inclusive activities that help to affirm personhood and redress the biomedical focus on loss and deficit. However, in emphasizing more traditional forms of creativity associated with the arts, more mundane forms of creativity that emerge in everyday life have been overlooked, specifically with regard to how such creativity is used by people living with dementia and by their carers and family members as a way of negotiating changes in their everyday lives. In this paper, we propose a critical approach to understanding such forms of creativity in this context, comprised of six dimensions: everyday creativity; power relations; ways to operationalise creativity; sensory and affective experience; difference; and reciprocity. We point towards the potential of these dimensions to contribute to a reframing of debates around creativity and dementia.
A comparison of three approaches for determining scalar illuminance from cubic illuminance data
Authors: Mangkuto RA
Published: April 2018

A method for calculating scalar illuminance using cubic illuminance values in a light field has been proposed in the literature. This enables exact measurement of the illuminance vector direction and magnitude by a fixed device, as well as providing a useful basis for calculation. However, the method yields an inexact estimate of the scalar illuminance which in some cases may lead to errors. Two alternative approaches using the concept of mean spherical semi-cubic and cubic illuminances are proposed in this paper, to determine which of these approaches yields the highest accuracy, and to observe the effect of source orientation in various multiple point source configurations. Three types of test are introduced: the first involves two, three, and four identical point sources, separated by a varying angle θ; the second involves four identical point sources arranged symmetrically at varying azimuth angle ψ and incident angle α; the third involves 10,000 combinations of up to six point sources with random luminous intensities and in random positions. Comparisons between the three approaches show that the approach using mean spherical semi-cubic illuminances yields the least amount of error and thus the highest accuracy for scalar illuminance and vector/scalar illuminance ratio in the first and second test. In the third test, this approach also yields the highest accuracy, even though it tends to underestimate the scalar illuminance in scenes with more sources.
How resources determine pulmonary rehabilitation programs: A survey among Belgian chest physicians
Authors: Janssens Wim , Corhay Jean-Louis , Bogaerts Peter , Derom Eric , Frusch Nicolas , Dang Delphine Nguyen , Kibanda Jesabelle , Ruttens David , Thyrion Lisa , Troosters Thierry , Marchand Eric
Published: April 2018

Despite overwhelming evidence of its benefits, a widespread implementation of pulmonary rehabilitation (PR) is lacking and the landscape of multidisciplinary programs remains very scattered. The objective of this study is to assess how PR is organized in specialized care centres in Belgium and to identify which barriers may exist according to respiratory physicians. A telephone and online survey was developed by a Belgian expert panel and distributed among all active Belgian chest physicians ( n = 492). Data were obtained from 200 respondents (40%). Seventy-five percentage of the chest physicians had direct access to an ambulatory rehabilitation program in their hospital. Most of these programs are organized bi or triweekly for an average period of 3–6 months. Programs focus strongly on chronic obstructive pulmonary disease patients from secondary care, have a multidisciplinary approach and provide exercise capacity and quality of life measures as main outcomes. Yet large differences were observed in process and outcome indicators between the programs of centres with standard funding and those of specialized centres with a larger allocated budget. We conclude that multidisciplinary PR programs are available in the majority of Belgian hospitals. Differences in funding determine the quality of the team, the diversity of the interventions and the monitoring of outcomes. More resources for rehabilitation will directly improve the utilization and quality of this essential treatment option in respiratory diseases.
The Psychology of Diversity Resistance and Integration
Authors: Wiggins-Romesburg Christine A. , Githens Rod P.
Published: April 2018

Diversity resistance is the dynamic interplay of individual and collective behaviors, with individual resistance rooted in unconscious motivation and organizational resistance rooted in the collective behavior of individuals. The purpose of this article is to enrich understanding of the forms of diversity resistance and introduce literature which may help move individuals and organizations to more equitable and integrative norms. We present a continuum of diversity resistance and integration in organizations to help human resource development (HRD) researchers and professionals consider how resistance to diversity can be reduced in leading to the full integration of employees. The continuum consists of (a) Resistance, (b) Discrimination Prevention, (c) Access and Legitimacy, (d) Inclusion, and (e) Integration and Learning. A psychological perspective is presented on resistance for HRD professionals helping leaders to facilitate diversity-related change.
Music Therapy Reduces Radiotherapy-Induced Fatigue in Patients With Breast or Gynecological Cancer: A Randomized Trial
Authors: Alcântara-Silva Tereza Raquel , de Freitas-Junior Ruffo , Freitas Nilceana Maya Aires , de Paula Junior Wanderley , da Silva Delson José , Machado Graziela Dias Pinheiro , Ribeiro Mayara Kelly Alves , Carneiro Jonathas Paiva , Soares Leonardo Ribeiro
Published: April 2018

Purpose: To investigate the influence of music therapy on the reduction of fatigue in women with breast or gynecological malignant neoplasia during radiotherapy, since it is one of the most frequent side effects of this type of treatment, and may interfere with self-esteem, social activities, and quality of life. Experimental Design: Randomized controlled trial (control group [CG] and music therapy group [MTG]) to assess fatigue, quality of life, and symptoms of depression in women undergoing radiotherapy using the Functional Assessment of Cancer Therapy: Fatigue (FACT-F) version 4, Functional Assessment of Cancer Therapy–General (FACT-G) version 4, and Beck Depression Inventory in 3 separate times, namely, during the first week of radiotherapy, on the week of the intermediary phase, and during the last week of radiotherapy. Individual 30- to 40-minute sessions of music therapy with the presence of a trained music therapist were offered to participants. Results: In this study, 164 women were randomized and 116 (63 CG and 53 MTG) were included in the analyses, with mean age of 52.90 years (CG) and 51.85 years (MTG). Participants in the MTG had an average of 10 music therapy sessions, totaling 509 sessions throughout the study. FACT-F results were significant regarding Trial Outcome Index ( P = .011), FACT-G ( P = .005), and FACT-F ( P = .001) for the MTG compared with the CG. Conclusions: Individual music therapy sessions may be effective to reduce fatigue related to cancer and symptoms of depression, as well as to improve quality of life for women with breast or gynecological cancer undergoing radiotherapy. Further well-designed research studies are needed to adequately determine the effects of music therapy on fatigue.
Diagnostic Performance and Utility of Quantitative EEG Analyses in Delirium: Confirmatory Results From a Large Retrospective Case-Control Study
Authors: Fleischmann Robert , Tränkner Steffi , Bathe-Peters Rouven , Rönnefarth Maria , Schmidt Sein , Schreiber Stephan J. , Brandt Stephan A.
Published: April 2018

Background. The lack of objective disease markers is a major cause of misdiagnosis and nonstandardized approaches in delirium. Recent studies conducted in well-selected patients and confined study environments suggest that quantitative electroencephalography (qEEG) can provide such markers. We hypothesize that qEEG helps remedy diagnostic uncertainty not only in well-defined study cohorts but also in a heterogeneous hospital population. Methods. In this retrospective case-control study, EEG power spectra of delirious patients and age-/gender-matched controls (n = 31 and n = 345, respectively) were fitted in a linear model to test their performance as binary classifiers. We subsequently evaluated the diagnostic performance of the best classifiers in control samples with normal EEGs (n = 534) and real-world samples including pathologic findings (n = 4294). Test reliability was estimated through split-half analyses. Results. We found that the combination of spectral power at F3-P4 at 2 Hz (area under the curve [AUC] = .994) and C3-O1 at 19 Hz (AUC = .993) provided a sensitivity of 100% and a specificity of 99% to identify delirious patients among normal controls. These classifiers also yielded a false positive rate as low as 5% and increased the pretest probability of being delirious by 57% in an unselected real-world sample. Split-half reliabilities were .98 and .99, respectively. Conclusion. This retrospective study yielded preliminary evidence that qEEG provides excellent diagnostic performance to identify delirious patients even outside confined study environments. It furthermore revealed reduced beta power as a novel specific finding in delirium and that a normal EEG excludes delirium. Prospective studies including parameters of pretest probability and delirium severity are required to elaborate on these promising findings.
Facebook polls as proto-democratic instruments in the Egyptian revolution: The ‘We Are All Khaled Said’ Facebook page
Authors: Abdulla Rasha , Poell Thomas , Rieder Bernhard , Woltering Robbert , Zack Liesbeth
Published: April 2018

This article examines the dynamics of political participation on the ‘We Are All Khaled Said’ Facebook page, which hosted the call for Egypt’s 25 January 2011 revolution. It shows that the page served as a proto-democratic instrument by introducing both qualitative and quantitative polls and following up with actions based on majority opinion. This argument is developed through an analysis of discussion threads and polls from the page, selected from a data set of 14,072 posts, 6,810,357 comments and 32,030,731 likes made by 1,892,118 users, extracted via a customized version of Netvizz. The analysis demonstrates that the page provided a basic lesson in democratic participation to its users. ‘We Are All Khaled Said’ constituted an unprecedented public space for active discussions on fighting corruption, torture and police brutality. Moreover, it served as a practical example of shared governance and political participation, which became a model for its users to strive to apply to their country.
Learning with mobiles: The Global South
Authors: Traxler John
Published: April 2018

This article addresses the need to build sustainable, appropriate and authentic foundations for learning with mobiles in the Global South. It does this in two ways: first, by reviewing aspects of the current environment, namely the nature of learning with mobiles in the Global North, the relationships between research and policy in relation to learning with mobiles, the impact of mobile technology on language, and the meanings of international development; and second, by consolidating these within a broader and critical historical framework that sees education and technology as the instruments of the hegemony of the Global North, reinforcing its values and worldview. This is, however, methodologically challenging and problematic, and the article briefly considers how such arguments should be constructed. The article concludes by offering ways forward as the basis for practical progress.
The archive with a virtual museum: The (im)possibility of the digital archive in Chris Marker’s Ouvroir
Authors: Kim Jihoon
Published: April 2018

Can digital platforms such as the database and the virtual museum offer new possibilities of the archive? What concept of the archive can be pursued by contemporary practices that are appropriate and explore the digital forms in order to engage with the radical transformation of the experience and memory of older arts and media? This article seeks to address these questions by investigating Ouvroir (2008), a Second Life virtual museum created by Chris Marker. The author argues that Marker’s model of the virtual museum allows for the dialectic of the archive as marked by both new possibilities for documentation and memory and its inherent room for loss, fragmentation, and disorientation. This dialectical concept of the archive challenges not simply the traditional concept of the archive that presumes the totality of preservation and the systematic classification of information but also the utopian account of the virtual museum or archive, according to which its simulation, free accessibility, and universal connectivity contribute to overcome the physical museum or archive.
The accuracy of intestinal ultrasound compared with small bowel capsule endoscopy in assessment of suspected Crohn’s disease in patients with negative ileocolonoscopy
Authors: Carter Dan , Katz Lior H. , Bardan Eytan , Salomon Eti , Goldstein Shulamit , Ben Horin Shomron , Kopylov Uri , Eliakim Rami
Published: April 2018

Background:

Small bowel involvement in Crohn’s disease (CD) is frequently proximal to the ileocecal valve and inaccessible by conventional ileocolonoscopy (IC). Small bowel capsule endoscopy (SBCE) is among the prime modalities for assessment of small bowel disease in these patients. Intestinal ultrasound (IUS) is an accurate bedside fast and low-cost diagnostic modality utilized in CD for both diagnosis and monitoring. The aim of this study was to examine the accuracy of IUS in patients with suspected CD after a negative IC, and to evaluate the correlation of IUS with SBCE, inflammatory biomarkers and other cross-sectional imaging techniques.

Methods:

Prospective single center study in which patients with suspected CD underwent IUS and SBCE examinations within 3 days. IUS results were blindly compared with SBCE that served as the gold standard. A post hoc comparison was performed of IUS and SBCE results and available cross-sectional imaging results (computed tomography or magnetic resonance enterography) as well as inflammatory biomarkers if measured. The study cohort was followed for 1 year. In case of discordance between the IUS and SBCE results, the diagnosis at 1 year was reported.

Results:

Fifty patients were included in the study. The diagnostic yield of both IUS and SBCE for the diagnosis of small bowel CD was 38%. The IUS findings significantly correlated to small bowel inflammation detected by SBCE ( r = 0.532, p < 0.001), with fair sensitivity and specificity (72% and 84%). Cross-sectional imaging results significantly correlated to IUS as well ( r = 0.46, p = 0.018). Follow up was available in 8 of the 10 cases of discordance between IUS and SBCE. In all of these cases, diagnosis of CD was not fully established at the end of the follow up.

Conclusions:

The diagnostic yield of CE and IUS for detection of CD in patients with negative ileocolonoscopy was similar. IUS can be a useful diagnostic tool in suspected CD when IC is negative.
Big data management
Authors: Troisi Orlando , D’Arco Mario , Loia Francesca , Maione Gennaro
Published: April 2018

In the past few years, an explosion of interest in big data has occurred from both academia and business communities. To reduce the uncertainty associated with some types of big data, organizations can adopt specific strategies inspired by service-dominant logic and value co-creation between organizations and customers. Specifically, alternating the extant body of literature and the results emerged from the case–study analysis of Mulino Bianco’s ‘Nel mulino che vorrei’, this research illustrates how different organizations can purposefully design particular engagement platforms for ‘joint agential experiential creation’ of big data and how organizations design digital and interactive environment in order to acquire and manage integrated, cleaned, trustworthy and efficiently accessible data for decision-making or product innovation activities. From a theoretical viewpoint, this basis model for joint agential experiential creation of big data advances the extant research offering a useful insight to reduce data veracity. From a practical perspective, this study explains why organizations should invest in engagement platforms, such as digital forum, social media brand pages or specific digital and interactive environment built for the occasion, to facilitate the collection, storage and the analysis of customer-generated big data.
A Membranome-Centered Approach Defines Novel Biomarkers for Cellular Subtypes in the Intervertebral Disc
Authors: van den Akker Guus G. H. , Eijssen Lars M. T. , Richardson Stephen M. , Rhijn Lodewijk W. van , Hoyland Judith A. , Welting Tim J. M. , Voncken Jan Willem
Published: April 2018

Objective

Lack of specific marker-sets prohibits definition and functional distinction of cellular subtypes in the intervertebral disc (IVD), such as those from the annulus fibrosus (AF) and the nucleus pulposus (NP).

Design

We recently generated immortalized cell lines from human NP and AF tissues; these comprise a set of functionally distinct clonal subtypes. Whole transcriptome analyses were performed of 12 phenotypically distinct clonal cell lines (4× NP-Responder, 4× NP-nonResponder, 2× AF-Sheet forming, and 2× AF-nonSheet forming). Data sets were filtered for membrane-associated marker genes and compared to literature.

Results

Comparison of our immortal cell lines to published primary NP, AF, and articular chondrocytes (AC) transcriptome datasets revealed preservation of AF and NP phenotypes. NP-specific membrane-associated genes were defined by comparison to AF cells in both the primary dataset (46 genes) and immortal cell-lines (161 genes). Definition of AF-specific membrane-associated genes yielded 125 primary AF cell and 92 immortal cell-line markers. Overlap between primary and immortal NP cells yielded high-confidence NP-specific marker genes for NP-R ( CLDN11, TMEFF2, CA12, ANXA2, CD44) and NP-nR (EFNA1, NETO2, SLC2A1). Overlap between AF and immortal AF subtypes yielded specific markers for AF-S ( COLEC12, LPAR1) and AF-nS ( CHIC1).

Conclusions

The current study provides a reference platform for preclinical evaluation of novel membrane-associated cell type–specific markers in the IVD. Future research will focus on their biological relevance for IVD function in development, homeostasis, and degenerate conditions.
Implementation Challenges and Training Needs for Comprehensive School Counseling Programs in Wisconsin High Schools
Authors: Burkard Alan W. , Gillen Mark , Martinez Michael J. , Skytte Sarah
Published: April 2018

The data from this study details the challenges to implementing comprehensive school counseling programs in Wisconsin high schools. Results suggest that current professional development training practices may be ineffective in assisting high school counselors to implement key components of the ASCA National Model in their schools. This article discusses obstacles to conducting more rigorous, statewide evaluations, and describes connections to markers of student success.
Missouri Professional School Counselors: Ratios Matter, Especially in High-Poverty Schools
Authors: Lapan Richard T. , Gysbers Norman C. , Stanley Bragg , Pierce Margaret E.
Published: April 2018

Results link lower student-to-school-counselor ratios to better graduation rates and lower disciplinary incidents across Missouri high schools. An interaction favorable for promoting student success in school was found between increasing percentages of students receiving free or reduced-price lunch and smaller student-to-school-counselor ratios. In high-poverty schools, those schools that met the ASCA criteria of having at least one professional school counselor for every 250 students had better graduation and school attendance rates, and lower disciplinary incidents.
Successful Implementation of a Federally Funded Violence Prevention Elementary School Counseling Program: Results Bring Sustainability
Authors: Duarte Danielle , Hatch Trish
Published: April 2018

Sixty-four federal Elementary and Secondary School Counseling (ESSC) program grants were awarded in 2009. One awarded school district implemented a comprehensive school counseling program based on the ASCA National Model at three high-needs elementary schools. This case study describes a district initiative that provided prevention education for all students and interventions for students with identified needs. Based on improvements in attendance, behavior, and achievement, the district funded and expanded the program after federal funds ended.
Why Do Parents Become Involved in Their Children's Education? Implications for School Counselors
Authors: Walker Joan M.T. , Shenker Susan S. , Hoover-Dempsey Kathleen V.
Published: April 2018

This article discusses a theoretical model of the parental involvement process that addresses (a) why parents become involved in their children's education, (b) the forms their involvement takes, and (c) how their involvement influences both proximal (e.g., motivation) and distal (e.g., achievement) student outcomes. The authors describe how school counselors can use this model to enhance schools’ and parents’ capacities to engage parents effectively in children's education. Specifically, they articulate how school counselors can educate teachers and parents about the importance of teacher and school invitations to involvement, productive forms of involvement, and students’ active role in shaping their own educational outcomes. The authors briefly discuss future directions for research on parental involvement in the school counseling context.
Learning from Each Other: A Portrait of Family-School-Community Partnerships in the United States and Mexico
Authors: Dotson-Blake Kylie P.
Published: April 2018

Family-school-community partnerships are critically important for the academic success of all students. Unfortunately, in the face of specific barriers, Mexican immigrants struggle to engage in partnership efforts. In the hopes of promoting the engagement of Mexican immigrant families in partnerships, this article presents the findings of a transnational ethnography, exploring family-school-community partnership experiences of Mexican nationalists in Veracruz and Mexican immigrants in North Carolina. A portrait of partnerships in Mexico is contrasted with a portrait of partnerships in the United States, highlighting similarities and differences in role, structure, and function. School counselors are offered strategies for utilizing the knowledge of partnerships in Mexico to promote and support the engagement of Mexican immigrants in partnerships in the United States.
Acupuncture for Chronic Pain in the Vermont Medicaid Population: A Prospective, Pragmatic Intervention Trial
Authors: Davis Robert T , Badger Gary , Valentine Kristina , Cavert Alexander , Coeytaux Remy R
Published: April 2018

Introduction

In response to the opioid crisis, the 2016 Vermont legislature commissioned a study to assess acupuncture for patients with chronic pain in the Vermont Medicaid population.

Objective

To assess the feasibility, acceptability, and effectiveness of acupuncture provided by licensed acupuncturists for Vermont Medicaid patients with chronic pain.

Methods

A total of 156 Medicaid patients with chronic pain were offered up to 12 acupuncture treatments within a 60-day period at the offices of 28 Vermont licensed acupuncturists. PROMIS® questionnaires were administered prior to and at the end of the treatment period to assess changes in pain intensity, pain interference, physical function, fatigue, anxiety, depression, sleep disturbance, and social isolation. Questionnaires also captured patients’ overall impressions of treatments as well as self-reported changes in medication use and work function.

Results

One hundred eleven women (71%) and 45 men (29%) with a wide range of pain complaints received a mean of 8.2 treatments during the intervention period. Measurements captured prior to and at the end of the treatment period showed significant improvements in group mean pain intensity, pain interference, physical function, fatigue, anxiety, depression, sleep disturbance, and social isolation as assessed by Patient-Reported Outcomes Measurement Information System (PROMIS) measures (paired t tests, P < .01). Fifty-seven percent of patients using analgesic (nonopioid) medication reported reductions in use. Thirty-two percent of patients using opioid medication reported reductions in use of opioid medication following the intervention. Seventy-four percent of employed patients reported improved capacity to work. Ninety-six percent of patients said that they would recommend acupuncture to others with chronic pain, and 91% reported qualitative improvements, including physical (31%), functional/behavioral (29%), and psycho-emotional (24%) improvements.

Conclusions

Our findings demonstrate that acupuncture treatment for chronic pain is feasible and well received by patients in the Vermont Medicaid population. Receiving care from Licensed Acupuncturists was associated with significant improvements in physical, functional, psycho-emotional, and occupational outcomes compared with before receiving acupuncture treatments.
Ligament Strain Response Between Lower Extremity Contralateral Pairs During In Vitro Landing Simulation
Authors: McPherson April L. , Bates Nathanial A. , Schilaty Nathan D. , Nagelli Christopher V. , Krych Aaron J. , Hewett Timothy E.
Published: April 2018

Background:

Limb asymmetries, as determined through in vivo biomechanical measures, are known risk factors for anterior cruciate ligament (ACL) injury. Previous cadaveric studies have shown a lack of significant differences in ligament strain between contralateral lower extremities when identical kinematics were simulated on specimens. Recent methodological developments have applied in vivo knee kinetics to exert landing forces on cadaveric lower extremities to mimic ACL injury events, but it is unknown whether contralateral limbs fail in a consistent manner during impact simulator testing.

Hypothesis:

It was hypothesized that contralateral lower extremities would not exhibit side-to-side differences in ligament strains. Furthermore, it was hypothesized that failure loads and failure locations would be independent of limb dominance.

Study Design:

Controlled laboratory study.

Methods:

Fourteen pairs of cadaveric lower extremities were obtained from an anatomic donations program (8 female, 6 male; mean ± SD: age, 41.7 ± 8.1 years; mass, 86.8 ± 27.0 kg; body mass index, 29.4 ± 9.0 kg/m2). A mechanical impact simulator was used to re-create the impulse ground-reaction force generated during an in vivo landing task. Ligament strains were recorded by differential variable force transducers implanted on the ACL and medial collateral ligament (MCL).

Results:

No significant differences were observed in peak ACL or peak MCL strain for 5 loading conditions. Fisher exact tests of independence revealed that limb dominance was independent of both load at failure and failure location.

Conclusion:

There were no significant differences in ACL and MCL strain values between limb sides during in vitro impact simulation testing. This finding indicates that limb dominance does not influence the failure threshold of the ACL, since there was no significant difference in failure strains. The functional mechanics of the ACL are comparable between contralateral pairs from the same healthy specimen.

Clinical Relevance:

Injury mechanisms and intra-articular mechanics cannot be ethically studied in an in vivo setting. The current study provides additional insight into limb asymmetry that is observed among athletes in clinical sports medicine settings.
Politics and the Perceived Boundaries of Science: Activism, Sociology, and Scientific Legitimacy
Authors: Scheitle Christopher P.
Published: April 2018

Research has suggested that public confidence in the scientific community has become politicized, but it is not clear that liberals and conservatives disagree on the more fundamental question of what counts as being scientific. An analysis of General Social Survey data finds that political conservatism is negatively associated with an individual’s rating of sociology as being scientific. This association is not found when examining ratings of economics or biology. Education moderates this association, as the gap between liberals’ and conservatives’ ratings of sociology’s scientific-ness is greater among those with more education. Although research has demonstrated that trust in the scientific community has become politicized, these findings demonstrate that the perceived boundaries of science can also be influenced by political ideology.
Donor telomere length and causes of death after unrelated hematopoietic cell transplantation in patients with marrow failure
Authors: Gadalla Shahinaz M. , Aubert Geraldine , Wang Tao , Haagenson Michael , Spellman Stephen R. , Wang Lingxiao , Katki Hormuzd A. , Savage Sharon A. , Lee Stephanie J.
Published: April 2018

Key Points

Longer donor TL protects patients with SAA undergoing transplantation from infection-related death.