bluuebunny/crossref_metadata_2025 huggingface dataset:
Student Activism in the Neoliberal University: A Hermeneutic Phenomenological Analysis
Authors: Karter Justin M. , Robbins Brent D. , McInerney Robert G.
Published: March 2019

Student activism is a highly underresearched topic in psychology despite the field’s commitment to studying person–environment interactions and advancing social justice aims. Furthermore, less is known about the ways in which student activists navigate the neoliberal or “corporatized” university in the United States. This research study utilizes a hermeneutic phenomenological qualitative method in order to attempt to describe the experience of being a student activist within a “corporatized” or neoliberal university. The results demonstrate that the apolitical rhetoric and the consumerization of student life, characteristic of neoliberalism in higher education, influence the process through which students become activists and become explicit targets of discipline as well. Students understand their activism in terms of repoliticizing the university and reconfiguring their approach toward education away from consumer metaphors. The results also have significant implications for understanding how the experience of student activism interacts with the other social and economic stressors, simultaneously increasing demands on students while creating possibilities for connectedness and purpose.
Do Not Neglect the Body and Action: The Emergence of Embodiment Approaches to Understanding Human Development
Authors: Marmeleira José , Duarte Santos Graça
Published: March 2019

It is becoming clear that to truly understand what it is to be human, focusing scientific efforts on the mind alone is insufficient. We are embodied minds, living and acting in a world full of meaningful things. In this article, we discuss how science has been informed by important research insights into the close relationship between the body, the mind, and the world. These interactions can be translated into embodied perspectives of human development. We provide evidence that perception, cognition, emotion, human relations, and behavior are grounded in our bodies from the beginning of our lives. From this perspective, the body cannot be assumed to be simply an effector for cognition or an instrument for collecting information for the brain. This comprehensive review and debate of embodied-related literature is accompanied by the identification of theoretical challenges and practical applications that will shape research for years to come.
Association Between the Catechol-O-Methyltransferase (COMT) Val158Met Polymorphism and Manual Performance Asymmetries
Authors: Nogueira Nathálya G. H. M. , Fernandes Lidiane A. , Ferreira Bárbara P. , Batista Marco T. S. , Alves Karen C. R. , Parma Juliana O.
Published: March 2019

Within the cognitive domain, neuroscience and cognitive psychology researchers have investigated the relationship between handedness and cognitive skills. However, there have been few studies of the three-way association between manual asymmetry, its genetic components, and cognition even though this line of research could further an understanding of asymmetry. One enzyme involved in cognitive functions related to the dopaminergic system and to the prefrontal cortex is the catechol-O-methyltransferase (COMT), and it has a trimodal activity distribution in the human population due to its functional polymorphism known as Val158Met. This study investigated whether this COMT polymorphism is associated with asymmetries in the performance of a manual dexterity task. Forty-two right-handed undergraduate students ( Mage = 25.12, SD = 5.84; 15 women, 27 men) performed two trials each of place and remove conditions of the Grooved Pegboard Test with each hand (right and left), counterbalancing the order of the initial or starting hand. We calculated the mean time to perform the task for both hands on both trials and found, as hypothesized, that the Met/Met group gave a more asymmetrical performance than the Val/Met group under the place condition because dopamine levels reduced flexible behavior for the Val/Met group. We suspect that the place condition requires greater interhemispheric connectivity, as it requires a greater cognitive flexibility, and highly asymmetrical individuals are said to be less flexible. The findings of this study suggest a significant association between the COMT polymorphism and manual asymmetry in healthy populations.
Urban Education and Academic Success: The Case of Higher Achieving Black Males
Authors: Kumah-Abiwu Felix
Published: March 2019

America’s urban communities have continued to face many challenges, especially the challenge of education, for several decades. Although factors such as racial injustice and community-driven problems have been used to explain the educational disparities in predominantly Black urban communities, many Black students, particularly males, have been performing well in the public/magnet school system (K-12). Drawing on a field study conducted at Capital Preparatory Magnet School (CPMS) in Hartford, Connecticut, the findings of the study show that CPMS has not only developed an institutional culture of excellence, but elements of the culture have shaped the school’s academic success for many years.
The Rhetoric of Development and Resistance by Tribal Women in Kashipur
Authors: Sahu Skylab
Published: March 2019

In the post-Independence era, development has been one of the key goals of the Indian state. Development is often seen as being synonymous with the process of modernisation and economic growth. Such a version of development has undoubtedly benefitted a few capitalists and layers of the middle class, yet it has remained in the realm of rhetoric for a large section of India’s tribal population. Development through mega projects displaces a large number of people. Displacement without adequate rehabilitation and compensation further aggravates the situation. In Odisha since 1993, few multinational and national companies have tried setting up mining projects in Kashipur. Many tribal villagers have protested strongly against these proposed projects from an egalitarian, environmental and social justice perspective. Significantly, women have remained in the forefront of these movements airing their concern. The article takes the case study of the Kashipur movement and critically analyses the role of women and their involvement in the struggle.
Effects of Rules and Feedback on Classroom Behavior of Adolescents in a Residential Treatment Setting
Authors: Chinnappan Barathi , Rapp John T. , Burkhart Barry R.
Published: March 2019

Over the past 30 years, researchers have shown that various types of group contingency procedures can decrease problem behavior displayed by young children in academic settings. Recently, researchers have demonstrated that presession rules, within-session feedback, and interdependent group contingencies (i.e., contingently delivered tangible and edible items) increased appropriate behavior displayed by detained adolescents in a residential treatment facility. Nevertheless, it is possible that rules with feedback about rule violations could produce comparable outcomes. To address this question, we used a nonconcurrent multiple baseline design across classrooms to evaluate the extent to which rules, visual feedback (i.e., marks on a board denoting rule violations), and postsession feedback decreased problem behaviors in three classrooms within a residential detention facility. Results indicate that problem behavior decreased to less than 10% of observation intervals in each classroom. Results from a social validity measure indicate that the procedures and outcomes were acceptable to the respective classroom teachers.
Screen production on the ‘biggest set in the world’: Northern Ireland Screen and the case of Game of Thrones
Authors: Ramsey Phil , Baker Stephen , Porter Robert
Published: March 2019

The publicly funded screen development agency, Northern Ireland Screen, has been the key institutional actor in the exponential growth of the screen industries in Northern Ireland. The most prominent production to be based in Northern Ireland has been Home Box Office’s Game of Thrones, which had much of its eight seasons filmed in the region. Significant amounts of public finance have been offered to the screen industries, with direct funding provided to augment United Kingdom-wide tax breaks. However, there has been a lack of critical analysis of the recipients of this finance, on the precarious nature of many of the jobs that have been created, or on the stated benefits to the economy. This article subjects the role of Northern Ireland Screen to policy analysis to attempt to fill this scholarly gap. Setting the subject into the context of public support for film and television across the United Kingdom, it is argued that the economic argument for providing direct financial support to the screen industries needs to be viewed in the context of the overall impact on society.
Approaches to Marital Conflict Resolution: A Perspective of Democratic Republic of Congo Migrants Living in Durban, South Africa
Authors: Umubyeyi Beatrice , Mtapuri Oliver
Published: March 2019

The aim of this article is to expound on existing approaches to marital conflicts resolution among Congolese migrant families, their functioning, and their effectiveness. The theoretical framework within which this study is constructed is conflict transformation theory. This is a qualitative study involving in-depth interviews with 16 migrants comprising 8 men and 8 women from Democratic Republic of Congo living in Durban as well as two church leaders and two church counselors from where the participants were selected. Participants were identified in two selected Congolese migrant churches. The study found out that there are several approaches to marital conflict resolution. Negotiation and mediation were considered the most significant approaches used in resolving marital conflict among Congolese migrant families living in Durban. Culture matters in marital conflict resolution. Because of patriarchy, negotiation becomes a less effective approach to marital conflict resolution because the men believe they have the upper hand in marriage. Power is embedded in relationships, and negotiation has connotations of power relations and how power is distributed and dispensed in a given society. In circumstances in which women are emancipated, equality between men and women can be eventuated.
Introduction to Currently Applied Device Pathology
Authors: Friedemann Molly C. , Mehta Nicole A. , Jessen Staci L. , Charara Fatima H. , Ginn-Hedman Anne-Marie , Kaulfus Courtney N. , Brocklesby Breanna F. , Robinson Cedric B. , Jokerst Steven , Glowczwski Alan , Clubb Fred J. , Weeks Brad R.
Published: March 2019

Pathologic evaluation is crucial to the study of medical devices and integral to the Food and Drug Administration and other regulatory entities’ assessment of device safety and efficacy. While pathologic analysis is tailored to the type of device, it generally involves at a minimum gross and microscopic evaluation of the medical device and associated tissues. Due to the complex nature of some implanted devices and specific questions posed by sponsors, pathologic evaluation inherently presents many challenges in accurately assessing medical device safety and efficacy. This laboratory’s experience in numerous collaborative projects involving veterinary pathologists, biomedical engineers, physicians, and other scientists has led to a set of interrelated assessments to determine pathologic end points as a means to address these challenges and achieve study outcomes. Thorough device evaluation is often accomplished by utilizing traditional paraffin histology, plastic embedding and microground sections, and advanced imaging modalities. Combining these advanced techniques provides an integrative, comprehensive approach to medical device pathology and enhances medical device safety and efficacy assessment.
“Flint Can’t Get in the Hearing”: The Language of Urban Pathology in Coverage of an American Public Health Crisis
Authors: Carey Michael Clay , Lichtenwalter Jim
Published: March 2019

This study examines the presence and influence of urban pathology language in coverage of the Flint, Michigan, water crisis. The use of urban pathology language to describe low-income urban neighborhoods may lead news consumers to “understand those communities entirely in terms of their problems.” This study of coverage in The New York Times and the Wall Street Journal describes urban pathology frames that suggest a lack of agency among residents. The use of those frames, the study argues, may distract from broader questions of environmental justice.
Neuroliberalism in Action: The Finnish Experiment with Basic Income
Authors: Mannevuo Mona
Published: March 2019

This article considers the entanglements of neuroscience, economics and behaviourism in a two-year experiment (2017–18) with basic income in Finland. The participants in this mandatory, state-led experiment are unemployed individuals (25–58 years old) recruited by the National Social Insurance Institution. The experiment is a randomised controlled trial intended to provide useful information about the impacts of basic income on employment and well-being. Focusing on the epistemological foundations of the experiment, this analysis suggests that the Finnish trial with basic income should be considered to be an example of the neuroliberal movement in policy-making as it uses behavioural economics and popularised neuroscience to optimise the cognitive abilities of the unemployed. The primary contribution of this paper is to raise concerns about how neuroliberalism reconfigures citizenship by obscuring the limits between freedom and control and how societies of control use neuroliberal models such as nudging to organise the disorganised and control the uncontrolled.
The Art Opening: Proximity and Potentiality at Events
Authors: Fuller Martin , Ren Julie
Published: March 2019

This article develops the concept of proximity as socio-spatial distance by looking at the temporally and spatially condensed events of contemporary art exhibition openings. The article begins by examining some developments in proximity research, the limitations of theorizing the importance of proximity as mere physical nearness, arguing that potentiality renders proximity meaningful. After introducing the art event, we offer a three-pronged approach to proximity by showing the imperatives for being-there, the conditional indeterminacy of potentiality and the politics of proximity. In contrast to much recent research, it is argued that the significance of events is not reducible to evaluated outcomes. Two ethnographic vignettes show the imperatives, indeterminacies and politics in action. We conclude by showing how this conceptualization of proximity has analytic purchase beyond the empirical realm of contemporary art.
Caregivers’ effects of augmented cognitive-behavioural therapy for post-stroke depressive symptoms in patients: secondary analyses to a randomized controlled trial
Authors: Kootker Joyce A , van Heugten Caroline M , Kral Bart , Rasquin Sascha MC , Geurts Alexander C , Fasotti Luciano
Published: March 2019

Objective:

To investigate the concomitant effects of two patient-directed interventions for post-stroke depressive symptoms on caregivers’ well-being.

Design:

Secondary analyses of the results of a randomized controlled trial.

Subjects:

Fifty caregivers of stroke patients receiving outpatient rehabilitation.

Interventions:

Stroke patients and their caregivers were randomly allocated to either cognitive-behavioural therapy augmented with movement or occupational therapy ( n = 23) or computerized cognitive training ( n = 27) to alleviate depressive symptoms in patients.

Main measures:

Emotional burden (Involvement Evaluation Questionnaire), practical burden (Caregiver Strain Index), mental health (General Health Questionnaire) and emotional complaints (Hospital Anxiety and Depression Scale).

Results:

Caregivers of patients who received cognitive-behavioural therapy reported significantly higher mental health levels (mean difference (MD) = 1.78, 95% confidence interval (CI) = 0.43–3.13, P = 0.01) and less worrying about patients’ well-being (MD = 1.9, 95% CI = 0.56–3.24, P < 0.01). In addition, there were positive time effects on the Involvement Evaluation Questionnaire for Brain Injury, particularly the subscales Worrying, Supervision and Tension.

Conclusion:

The results suggest that augmented cognitive-behavioural therapy aimed at improving patients’ emotional, behavioural and social functioning positively affects some aspects of caregivers’ well-being.
Perinatal Palliative Care: A qualitative study evaluating the perspectives of pregnancy counselors
Authors: Flaig Franziska , Lotz Julia D , Knochel Kathrin , Borasio Gian Domenico , Führer Monika , Hein Kerstin
Published: March 2019

Background:

A prenatal diagnosis of a life-limiting disease raises complex ethical, emotional, and medical issues. Studies suggest that 40%–85% of parents decide to continue the pregnancy if given the option of Perinatal Palliative Care. However, structured Perinatal Palliative Care programs are missing in many European countries. In Germany, parents have the right to free psychosocial support from pregnancy counseling services after the prenatal diagnosis of a life-limiting disease.

Aim:

We aimed to investigate whether German professional pregnancy counselors perceive the need for structured Perinatal Palliative Care and if so, how it should be conceived.

Design:

This is a qualitative interview study with purposeful sampling. The interviews were analyzed with the coding method of Saldaña.

Setting/participants:

A total of 10 professionals from three different pregnancy counseling services participated in the study.

Results:

The main topics raised by the professionals were as follows: (1) counseling and parental support during the decision-making process; (2) fragmented or missing support infrastructure for parents; and (3) challenges, hesitations, and barriers, particularly from the different stakeholders, regarding a Perinatal Palliative Care framework. They highlighted the importance of the integration of Perinatal Palliative Care in existing structures, a multi-professional approach, continuous coordination of care and education for all healthcare providers involved.

Conclusion:

A structured Perinatal Palliative Care program is considered as necessary by the pregnancy counselors. Future research should focus on (1) needs reported by concerned parents; (2) attitude and role of all healthcare providers involved; (3) strategies to include stakeholders in the development of Perinatal Palliative Care networks; and (4) outcome parameters for evaluation of Perinatal Palliative Care frameworks.
Vortioxetine for attention deficit hyperactivity disorder in adults: A randomized, double-blind, placebo-controlled, proof-of-concept study
Authors: Biederman Joseph , Lindsten Annika , Sluth Lasse B , Petersen Maria Louise , Ettrup Anders , Eriksen Hanne-Lise F , Fava Maurizio
Published: March 2019

Background:

Stimulants remain the mainstay of treatment for attention-deficit hyperactivity disorder (ADHD) but are often associated with insufficient response or poor tolerability, leading to many patients not wishing to be treated with controlled substances.

Aims:

This randomized, placebo-controlled, proof-of-concept study (NCT02327013) evaluated the efficacy of a multimodal antidepressant, vortioxetine, in the treatment of ADHD, using a two-stage sequential parallel comparison design.

Methods:

Patients aged 18–55 years with a diagnosis of ADHD (DSM-5) and a total score ⩾24 on the Adult ADHD Investigator Symptom Rating Scale (AISRS) were randomized in study stage I with a 1:1:3 ratio to six weeks of treatment with vortioxetine 10 or 20 mg/day, or placebo ( n = 227). In study stage II, placebo non-responders (AISRS total score reduction <30% from stage I baseline) were re-randomized with a 1:1:1 ratio to six weeks of vortioxetine 10 or 20 mg/day, or placebo ( n = 59).

Results:

Across the two study stages combined, ADHD symptoms improved by approximately eight AISRS points in all treatment groups, showing no difference from placebo for either dose of vortioxetine, the study thus failing to meet its primary endpoint. However, both doses of vortioxetine separated from placebo in improving overall patient functioning, as measured by the Sheehan Disability Scale.

Conclusion:

Studies are warranted to further investigate this suggested benefit of a multimodal antidepressant for patient functioning in ADHD while addressing issues of non-adherence and placebo response. The study confirmed vortioxetine 10 mg and 20 mg as generally well-tolerated.
Angiogenesis in the ischemic core: A potential treatment target?
Authors: Kanazawa Masato , Takahashi Tetsuya , Ishikawa Masanori , Onodera Osamu , Shimohata Takayoshi , del Zoppo Gregory J
Published: March 2019

The ischemic penumbra is both a concept in understanding the evolution of cerebral tissue injury outcome of focal ischemia and a potential therapeutic target for ischemic stroke. In this review, we examine the evidence that angiogenesis can contribute to beneficial outcomes following focal ischemia in model systems. Several studies have shown that, following cerebral ischemia, endothelial proliferation and subsequent angiogenesis can be detected beginning four days after cerebral ischemia in the border of the ischemic core, or in the ischemic periphery, in rodent and non-human primate models, although initial signals appear within hours of ischemia onset. Components of the neurovascular unit, its participation in new vessel formation, and the nature of the core and penumbra responses to experimental focal cerebral ischemia, are considered here. The potential co-localization of vascular remodeling and axonal outgrowth following focal cerebral ischemia based on the definition of tissue remodeling and the processes that follow ischemic stroke are also considered. The region of angiogenesis in the ischemic core and its surrounding tissue (ischemic periphery) may be a novel target for treatment. We summarize issues that are relevant to model studies of focal cerebral ischemia looking ahead to potential treatments.
New Rules for New Tools? Exploitative and Productive Lawfare in the Case of Unpiloted Aircraft
Authors: Connolly Daniel
Published: March 2019

Contemporary shifts in technology are celebrated for empowering human rights defenders and generating prosperity, but they also enable new forms of human rights violations. This article traces the evolving legal and regulatory challenges posed by drones across two distinct waves of debate. The first involved questions about the legality of weaponized drones in foreign airspaces. The second has centered on the domestication of the technology in American and European airspaces. This article argues that the legal gaps exposed in both waves are not an inevitable side effect of drone technology but are the result of key actors opportunistically using new capabilities to exploit existing rules or even to produce new ones—a process known as lawfare. This linkage between technology and lawfare is important because the drone debates encapsulate many of the core challenges surrounding emerging technologies such as algorithmic decision-making, autonomous vehicles, and big data. Lawfare over unpiloted aircraft is a prelude to the struggles ahead.
Constructing contentious and noncontentious facts: How gynecology textbooks create certainty around pharma-contraceptive safety
Authors: Bertotti Andrea M , Miner Skye A
Published: March 2019

Using critical discourse analysis, we examine how seven popular gynecology textbooks use sociolinguistic devices to describe the health effects of pharma-contraception (intrauterine and hormonal methods). Though previous studies have noted that textbooks generally use neutral language, we find that gynecology textbooks differentially deployed linguistic devices, framing pharma-contraceptive benefits as certain and risks as doubtful. These discursive strategies transform pharma-contraceptive safety into fact. We expand on Latour and Woolgar’s concept of noncontentious facts by showing how some facts that are taken for granted by the medical community still require discursive fortification to counter potential negative accusations from outside the profession. We call these contentious facts. Our findings suggest that a pro-pharma orientation exists in gynecology textbooks, which may influence physicians’ understanding of pharmaceutical safety. As such, these texts may affect medical practice by normalizing pharma-contraceptives without full considerations of their risks.
Impact of Heavy-Duty Diesel Truck Activity on Fuel Consumption and Its Implication for the Reduction of Greenhouse Gas Emissions
Authors: Collier Sonya , Ruehl Chris , Yoon Seungju , Boriboonsomsin Kanok , Durbin Thomas D. , Scora George , Johnson Kent , Herner Jorn
Published: March 2019

Activity data from 79 line-haul and vocational trucks were analyzed to estimate trip-averaged fuel consumption per distance driven and per work performed. The 79 trucks had engine model years ranging from 2008 to 2015 and average (±standard deviation) miles per gallon of 5.5 ± 1.7, which is comparable to other large fleet studies. Engine output work used to overcome various forms of resistance was minimized at vehicle speeds between 54 and 60 mph, which led to best fuel economy. The average gallons-per-brake horsepower-hour (gal/BHP-HR) was 0.058 ± 0.0085. When comparing the gal/BHP-HR per trip speed, higher average trip speeds led to improved fuel economy (lower gal/BHP-HR). In the case of out-of-state line-haul trucks, fuel economy was also dependent on model year. The newer model year out-of-state line-haul truck (2014) had a significant improvement in fuel economy compared with the older model year trucks (2012 and 2013). This could be the result of more stringent CO2 emission standards beginning for model year 2014 trucks under the Phase 1 Greenhouse Gas rule, but data on more vehicles would further corroborate this. The trip-averaged CO2 emissions were calculated for each truck and it was found that some truck groups displayed consistent trip-averaged emissions whereas others displayed high variability despite belonging to the same fleet. Several of the trucks engaged in significant idling, with a median contribution to their CO2 emissions of 4.2%.
Are Amniotic Fluid Products Stem Cell Therapies? A Study of Amniotic Fluid Preparations for Mesenchymal Stem Cells With Bone Marrow Comparison
Authors: Panero Alberto J. , Hirahara Alan M. , Andersen Wyatt J. , Rothenberg Joshua , Fierro Fernando
Published: March 2019

Background:

In vivo amniotic fluid is known to contain a population of mesenchymal stem cells (MSCs) and growth factors and has been shown to assist in healing when used as an adjunct in procedures across multiple medical specialties. It is unclear whether amniotic fluid products (AFPs) contain MSCs and, if so, whether the cells remain viable after processing.

Purpose:

To determine whether MSCs, growth factors, and hyaluronan are present in commercially available AFPs.

Study Design:

Descriptive laboratory study.

Methods:

Seven commercial companies that provide amniotic fluid were invited to participate in the study; 3 companies (the manufacturers of PalinGen, FloGraft, and Genesis AFPs) agreed to participate and donated AFPs for analysis. The AFPs were evaluated for the presence of MSCs, various growth factors relevant to orthopaedics (platelet-derived growth factor ββ, vascular endothelial growth factor, interleukin 8, bone morphogenetic protein 2, transforming growth factor β1), and hyaluronan by enzyme-linked immunosorbent assay and culture of fibroblast colony-forming units. These products were compared with unprocessed amniotic fluid and 2 separate samples of MSCs derived from human bone marrow aspirates. All groups used the same culture medium and expansion techniques. Identical testing and analysis procedures were used for all samples.

Results:

MSCs could not be identified in the commercial AFPs or the unprocessed amniotic fluid. MSCs could be cultured from the bone marrow aspirates. Nucleated cells were found in 2 products (PalinGen and FloGraft), but most of these cells were dead. The few living cells did not exhibit established characteristics of MSCs. Growth factors and hyaluronan were present in all groups at varying levels.

Conclusion:

The AFPs studied should not be considered “stem cell” therapies, and researchers should use caution when evaluating commercial claims that products contain stem cells. Given their growth factor content, however, AFPs may still represent a promising tool for orthopaedic treatment.

Clinical Relevance:

Amniotic fluid has been proposed as an allogenic means for introducing MSCs. This study was unable to confirm that commercial AFPs contain MSCs.
Illustrating the Difference Between a Pigovian Tax and Emissions Fee Using Isoquant and Isocost Geometry
Authors: Decker Christopher S.
Published: March 2019

The study of environmental economics is motivated by the idea that pollution constitutes a negative externality. When production costs do not include the harm to human health and the environment, the market price is too low and output levels are too high, relative to the efficient levels. The initial solution to this problem is usually the “the Pigovian tax” on production. However, all subsequent tax analysis focuses directly on emissions. This tends to leave students wondering (a) why discuss Pigou in the first place and (b) why is it better to focus on pollution emissions rather than production. I provide a graphical analysis, using isoquant and isocost geometry, to illustrate that a direct fee on the externality-generating input is more efficient than a tax on output. This analysis is something teachers might consider utilizing to clarify why there is a transition from output taxation to input taxation.

JEL Classifications: A22, A23, Q50
Predicting Burnout Among Juvenile Detention and Juvenile Probation Officers
Authors: Rhineberger-Dunn Gayle , Mack Kristin Y.
Published: March 2019

The purpose of our study is to extend the existing literature by assessing the predictors of burnout among juvenile justice staff. We assess the impact of individual, job/role-related, and organizational factors on burnout among juvenile probation and juvenile detention officers. Also, given recent research in the institutional and community corrections field, we evaluate which set of variables (e.g., individual, job/role related, and organizational) has a greater impact on burnout. Results indicate that the only individual-level variable affecting burnout is contact hours, and only for emotional exhaustion. Role overload is also significant only for emotional exhaustion, whereas work–family conflict is significant for both emotional exhaustion and depersonalization. Furthermore, input into decision making and lack of opportunities are both significant for depersonalization and personal accomplishment. Finally, job characteristics appear to have a greater impact than organizational variables on both emotional exhaustion and depersonalization, but organizational variables have a stronger influence on personal accomplishment.
Experimental and numerical analyses of wedge effects on the rooster tail and porpoising phenomenon of a high-speed planing craft in calm water
Authors: Mahdi Sajedi Sayyed , Ghadimi Parviz , Sheikholeslami Mohammad , Ghassemi Mohammad A
Published: March 2019

This paper presents experimental and numerical investigation of stability and rooster tail of a mono-hull high-speed planing craft with a constant deadrise angle. Initially, a one-fifth scale model was tested in a towing tank, which showed porpoising phenomenon at 8 m/s (equal to the speed of sailing). Subsequently, two wedges of 5 and 10 mm heights, based on the boundary layer calculations, were mounted on the aft section of the planing hull. These wedges were shown to increase the lift at the aft section. These experiments were carried out at different speeds up to 10 m/s in calm water. The experimental results indicated that the installed wedges reduced the trim, drag, and the elapsed time for reaching the hump peak, and also eliminated the porpoising condition. All these test cases were also numerically simulated using Star CCM+ software. The free surface was modeled using the volume of fluid scheme in three-dimensional space. The examined planing craft had two degrees of freedom, and overset mesh technique was used for space discretization. The obtained numerical results were compared with experimental data and good agreement was displayed in the presented comparisons. Ultimately, the effect of the wedge on the rooster tail behind the planing craft was studied. The results of this investigation showed that by decreasing the trim at a constant speed, the height of the generated wake profile (rooster tail) behind the craft decreases, albeit its length increases.
Modelling and simulation of ultrasonic-assisted jet electrochemical micro drilling process
Authors: Goel Harsha , Rath Usharani , Pandey Pulak M
Published: March 2019

Ultrasonic-assisted jet electrochemical micro drilling is an advanced variant of electrochemical machining to drill micro holes quickly and efficiently. The present article deals with the modelling and simulation of the integration of ultrasonic vibration with the conventional jet electrochemical micro drilling process. Multi-physics-based modelling and simulation approach has been used in the present work. The flow pattern of electrolyte jet was analysed for both jet electrochemical micro drilling and ultrasonic-assisted jet electrochemical micro drilling processes. The simulation results were validated with the previous experimental findings of ultrasonic-assisted jet electrochemical micro drilling process. It was found that the material removal rate (MRR) improved significantly as the ultrasonic wave got superimposed onto the electrolyte jet. In addition to that, voltage and concentration of the electrolyte also played vital roles in improving the MRR.
State-energy-constrained controller design for uncertain semi-state systems and its application in mechanical system control
Authors: Ding Yuanchun , Weng Falu , Geng Feiyue
Published: March 2019

The state-energy-constrained controller design for uncertain semi-state systems and its application in mechanical system control is studied in this paper. The objective is to get a sampled-data-based controller, with which the system is state-energy-constrained in a finite-time interval and has a given anti-disturbance performance. First, by adopting the matrix convex sets and data sampling, a sampled-data-based model for uncertain semi-state systems is obtained. Second, by considering those state-energy-constraints in real systems, the finite-time stability theory is utilized in the system analysis, and some sufficient conditions are achieved for uncertain semi-state systems with sampled data to be stabilizable. If these conditions are solvable, the sampled-data-based state-feedback controller can be gotten, such that the controlled system has an H-infinite performance, and the state energy is constrained in a finite-time interval. Finally, the obtained theorem is used to control some mechanical systems, and the results show that the controller obtained by the theorem in this paper can effectively attenuate the vibration of those mechanical systems and constrains their state-energies in a finite-time interval.
The Unbearable Automaticity of Being . . . in a Close Relationship
Authors: Hicks Lindsey L. , McNulty James K.
Published: March 2019

A recent surge in research on automatic processes in close relationships has revealed new insights into how people form and update relationship evaluations as well as the implications of these evaluations for their relationship outcomes. We begin by summarizing this research within the framework of interdependence theory—the predominant theory of how people evaluate and make decisions about their close relationships. In doing so, we review evidence that implicitly assessed automatic partner attitudes reflect pleasant and unpleasant experiences involving the partner and predict subsequent relationship outcomes, sometimes better than more deliberative judgments. Next, we describe several dual-process perspectives that suggest how and when these attitudes shape such outcomes, and we conclude by highlighting the potential benefits of examining automatic partner attitudes for theories of relationship science and beyond.
Hot Spots of Crime Are Not Just Hot Spots of Crime: Examining Health Outcomes at Street Segments
Authors: Weisburd David , White Clair
Published: March 2019

In this article, we seek to identify whether the relationship between health disparities and crime occurs at a micro-geographic level. Do hot spot streets evidence much higher levels of mental and physical illness than streets with little crime? Are residents of crime hot spots more likely to have health problems that interfere with their normal daily activities? To answer these questions, we draw upon a large National Institutes of Health study of a sample of hot spots and non-hot spots in Baltimore, Maryland. This is the first study we know of to report on this relationship, and accordingly, we present unique descriptive data. Our findings show that both physical and mental health problems are much more likely to be found on hot spot streets than streets with little crime. This suggests that crime hot spots are not simply places with high levels of crime, but also places that evidence more general disadvantage. We argue that these findings have important policy implications for the targeting of health services and for developing proactive prevention programs.
Providing Small Group Instruction to Children With Disabilities and Same-Age Peers
Authors: Winstead Olivia , Lane Justin D. , Spriggs Amy D. , Allday R. Allan
Published: March 2019

Small group instruction in classrooms provides children opportunities to collaborate on academic tasks, as well as opportunities for social interactions. Although such arrangements are common for children with typical development, children with moderate to severe disabilities (MSD) may receive few or no opportunities to participate meaningfully in small group instruction with same-age peers with typical development. The purpose of this study was to evaluate the use of a progressive time delay procedure for teaching children with MSD (autism spectrum disorder and/or intellectual disability) and those with typical social development, but at-risk for academic failure, to name sight words during small group instruction. In addition, children had multiple opportunities per session to provide tokens to peers, praise peers for correct responses, and initiate conversations and respond to a peer’s conversation initiations. Results indicated that children with and without disabilities can learn to name sight words, as well as learn to initiate conversation when tokens include pictures or photographs of each child’s preferred items or activities. Implications for teachers and future studies are provided.
Englishization and the Politics of Knowledge Production in Management Studies
Authors: Boussebaa Mehdi , Tienari Janne
Published: March 2019

Concerns have been voiced in recent years about the widespread use of U.S.-dominated journal rankings in business schools. Such practice is seen to have the effect of spreading globally a U.S.-style scholarly monoculture and reconstituting other forms of scholarship as marginal and inferior. In this essay, we explore the ways in which the English language is implicated in these processes. Drawing on language-sensitive studies of academic work and our own experiences as nonnative speakers of English, we argue that the use of U.S.-dominated rankings is not just hierarchizing and homogenizing the global field of management but also contributing to its Englishization. This, we contend, furthers the homogenization of the field while also producing significant language-based inequalities and inducing demanding quasi-colonial forms of identity work by those being Englishized.
Toward a Work Motivation Conceptualization of Grit in Organizations
Authors: Jordan Samantha L. , Ferris Gerald R. , Hochwarter Wayne A. , Wright Thomas A.
Published: March 2019

Despite its widespread media acclaim and recognition as a strategic imperative, the role of grit in organizational research remains unclear. This ambiguity resulted from inconsistent empirical findings, thus triggering a pessimistic outlook for the construct across disciplines. To address these issues, we suggest that such confusion and lack of construct and predictive validity stem from not only methodological issues but also a lack of theoretical sophistication. In this article, we address methodological issues, focusing mainly on construct and criterion-related validity, by showing how traditional definitional components of grit are absent in existing measures. Next, we address theoretical issues impeding progress by developing a new work motivation conceptualization of the construct. To do so, we focus primarily on noncognitive ability, purpose-driven long-term goal setting, and task strategy (i.e., short-term goal) adaptation. Finally, we develop an organizing framework examining how, and under what conditions, work-related goal setting manifests, highlighting grit’s distinction from other historically related constructs. Coupled with the assumption that individuals hold higher order organizational goals toward which they are passionate, our organizing framework includes feedback mechanisms accounting for grit’s developmental properties over time. Finally, we acknowledge significant areas for future research and potential practical implications.
Study on lightweight structural optimization design system for gantry machine tool
Authors: Liu Shihao , Du Yanbin , Lin Mao
Published: March 2019

In order to improve the efficiency and effectiveness of the lightweight design of the gantry machine tool, a lightweight structural optimization design system for the gantry machine tool was constructed. Serialized gantry machine tools were parametrically modeled, and a load model with multiple operating conditions was established. A twice optimization design method integrating zero-order optimization, parameter rounding, and structural re-optimization was proposed. Using the proposed method, a lightweight structural optimization design system for gantry machine tool with parametric design, lightweight design, and other functions was developed. The developed gantry machine tool lightweight structural optimization design system was applied to complete the lightweight structural optimization design of gantry frame of a certain gantry machine tool, so the structural parameters of the gantry frame were optimized. Although the maximum stress and the maximum deformation of the gantry frame increases within the allowable range, the experimental comparison before and after the optimization shows that the mass of the whole gantry frame is reduced by 9.24%, which is beneficial to save the manufacturing cost. The research results show that the constructed lightweight structural optimization design system of the gantry machine tool has high engineering practicality.
The Development of the Fear Response Circuitry of the Brain: A Neurodevelopmental Case for Family Counseling
Authors: Kindsvatter Aaron , Russotti Justin , Tansey Matt
Published: March 2019

This article describes the early life social regulation of the fear circuitry in the brain. In this article, the authors discuss the link between the quality of the caregiving environment and the developmental trajectory of fear regulation systems in the brain. Implications for counseling practices are discussed.
Optimal Timing and Early Intervention With Anticoagulant Therapy for Sepsis-Induced Disseminated Intravascular Coagulation
Authors: Yamakawa Kazuma , Umemura Yutaka , Murao Shuhei , Hayakawa Mineji , Fujimi Satoshi
Published: March 2019

Optimizing diagnostic criteria to detect specific patients likely to benefit from anticoagulants is warranted. A cutoff of 5 points for the International Society on Thrombosis and Haemostasis overt disseminated intravascular coagulation (DIC) scoring system was determined in the original article, but its validity was not evaluated. This study aimed to explore the optimal cutoff points of DIC scoring systems and evaluate the effectiveness of early intervention with anticoagulants. We used a nationwide retrospective registry of consecutive adult patients with sepsis in Japan to develop simulated survival data, assuming anticoagulants were conducted strictly according to each cutoff point. Estimated treatment effects of anticoagulants for in-hospital mortality and risk of bleeding were calculated by logistic regression analysis with inverse probability of treatment weighting using propensity scoring. Of 2663 patients with sepsis, 1247 patients received anticoagulants and 1416 none. The simulation model showed no increase in estimated mortality between 0 and 3 cutoff points, whereas at ≥4 cutoff points, mortality increased linearly. The estimated bleeding tended to decrease in accordance with the increase in cutoff points. The optimal cutoff for determining anticoagulant therapy may be 3 points to minimize nonsurvival with acceptable bleeding complications. The findings of the present study suggested a beneficial association of early intervention with anticoagulant therapy and mortality in the patients with sepsis-induced DIC. Present cutoff points of DIC scoring systems may be suboptimal for determining the start of anticoagulant therapy and delay its initiation.
Tracking control design for a multi-degree underactuated flexible-cable overhead crane system with large swing angle based on singular perturbation method and an energy-shaping technique
Authors: Fatehi Mohammad H. , Eghtesad Mohammad , Necsulescu Dan S. , Fatehi Ali A.
Published: March 2019

A flexible-cable overhead crane system having large swing is studied as a multi-degree underactuated system. To resolve the system dynamics complexities, a second order singular perturbation (SP) formulation is developed to divide the crane dynamics into two one-degree underactuated fast and slow subsystems. Then, a control system is designed based on the two-time scale control (TTSC) method to: (a) transfer the payload to a desired location and decrease the payload swing, by a nonlinear controller for slow dynamics; and (b) suppress transverse vibrations of the cable, by a linear controller for fast dynamics. The nonlinear controller is designed based on an energy shaping technique according to the controlled Lagrangian method. To demonstrate the control system effectiveness, an example of the flexible cable crane systems with a lightweight payload is considered to perform simulations. In addition to the proposed control system, two other controllers; namely, a linear controller based on the linear–quadratic regulator method and a TTSC based on the approximate SP model and partial feedback linearization, are applied to the system for comparison. Also, by applying a disturbance force to the trolley and considering 10% uncertainty in crane parameters, the control performance against disturbances and parameter uncertainties is investigated.