bluuebunny/crossref_metadata_2025 huggingface dataset:
Perceived Green at Speed: A Simulated Driving Experiment Raises New Questions for Attention Restoration Theory and Stress Reduction Theory
Authors: Jiang Bin , He Jibo , Chen Jielin , Larsen Linda , Wang Huaqing
Published: August 2020

Few studies have investigated the impact of landscapes on humans’ mental status while they are moving at high speeds, such as driving on the freeway. This study used a simulation system to measure drivers’ mental responses to six different freeway landscapes. Each of the 33 participants completed six different 90-minute simulated driving tasks in a randomly assigned sequence. The six landscape conditions consisted of an identical freeway infrastructure, with different roadside landscapes. Results show significant differences between landscape conditions and drivers’ mental responses. Landscape conditions with greater greenness, in general, had a greater positive impact on drivers’ mental status. The barren and tree regular landscapes yielded the worst and best results, respectively. Further, higher complexity was associated with a higher level of negative mental status. We argue that the speed of human’s active movement should be considered as an essential factor in the Attention Restoration Theory and Stress Reduction Theory.
Towards a Place-based Measure of Fear of Crime: A Systematic Review of App-based and Crowdsourcing Approaches
Authors: Solymosi Reka , Buil-Gil David , Vozmediano Laura , Guedes Inês Sousa
Published: August 2020

Few researches have considered fear of crime as a context-specific experience. This article promotes a place-based theoretical framework for studying crime perceptions through presenting app-based and crowdsourcing measures of perception of crime and place as a robust methodological framework. A systematic review of published studies that use crowdsourced or app-based measures to explore perceptions of crime was conducted. From the 27 studies that met our inclusion criteria, reported strengths and limitations were synthesized to determine key developments and common issues, illustrated with data from three app-based studies. We found consensus that app-based and crowdsourcing measures of fear of crime capture more precise spatial and temporal data alongside auxiliary information about the individual and the environment. Practical benefits, such as reduced cost of data collection and implementable outputs that are useful to practitioners were also highlighted. However, limitations around sampling biases, generalizability of findings, and the under-representation of certain areas persist.
Inpatient Perioperative Formulary Restriction of Intravenous Acetaminophen at Vizient Partner Hospitals: A National Survey of Pharmacists
Authors: Wallskog Kirsten Elena , Lauderdale Stacy , Peppard William J. , Kirkwood Craig , Taylor Stacy , Johnston Susan
Published: August 2020

Purpose: Despite potential benefits of intravenous (i.v.) administration of acetaminophen (APAP), consistent outcome data are lacking. This, combined with the higher acquisition cost of the drug, has led to variation in i.v. APAP management strategies. This project evaluated the contemporary formulary status and restrictions of i.v. APAP in the perioperative setting. Methods: A survey focusing on i.v. APAP formulary restriction in the perioperative setting was developed by the Vizient Pharmacy Research Committee and distributed to Vizient Pharmacy Program participant listservs for Pharmacy Directors or Drug Information Pharmacists. The four survey domains included hospital characteristics, perioperative i.v. APAP formulary status and prescribing restrictions, perioperative i.v. APAP use, and perioperative i.v. APAP medication use evaluation (MUE) results. Responses were collected and summarized, and primary outcomes were evaluated using Fisher’s exact test. Results: A total of 1195 surveys were distributed with a response rate of 19%. Respondents were equally distributed between academic medical centers (AMC) and non-academic medical centers (non-AMC). Two cohorts were examined: those with i.v. APAP on formulary and those without. The non-AMCs showed a larger proportion of hospitals with the medication on formulary ( P = .041). Regarding formulary decision-making, the AMCs were more considerate of value. Several different practices were employed to limit or restrict i.v. APAP. Conclusion: A survey of directors of pharmacy and drug information specialists revealed that the majority of hospitals have i.v. APAP on formulary for perioperative use, but use is restricted. Differences in i.v. APAP formulary practices between AMCs and non-AMCs warrant further consideration.
Monitoring and Dosing of Argatroban in a Patient With Antiphospholipid Syndrome
Authors: Dooling Karli , Haan Bradley
Published: August 2020

Background: This case reports outlines argatroban dosing and necessary dose adjustments in a 56 year-old male with a past medical history of antiphospholipid syndrome and heparin-induced thrombocytopenia. Method: Argatroban was initiated as a fixed dose of 0.5 µg/kg/min with all initial aPTTs above goal. Argatroban was held for a procedure and re-initiated at 0.25 µg/kg/min. The dose was increased or decreased by 25% from the current rate based on supratherapeutic and subtherapeutic aPTTs, respectively. Results: The patient remained on argatroban for 6 total days, while achieving goal aPTT levels with no VTE or bleeding events. Conclusion: Our patient represents the first reported case of monitoring argatroban with aPTTs in an individual with APS.
Shuffle block SRGAN for face image super-resolution reconstruction
Authors: Zhang Ziwei , Shi Yangjing , Zhou Xiaoshi , Kan Hongfei , Wen Juan
Published: August 2020

When low-resolution face images are used for face recognition, the model accuracy is substantially decreased. How to recover high-resolution face features from low-resolution images precisely and efficiently is an essential subtask in face recognition. In this study, we introduce shuffle block SRGAN, a new image super-resolution network inspired by the SRGAN structure. By replacing the residual blocks with shuffle blocks, we can achieve efficient super-resolution reconstruction. Furthermore, by considering the generated image quality in the loss function, we can obtain more realistic super-resolution images. We train and test SB-SRGAN in three public face image datasets and use transfer learning strategy during the training process. The experimental results show that shuffle block SRGAN can achieve desirable image super-resolution performance with respect to visual effect as well as the peak signal-to-noise ratio and structure similarity index method metrics, compared with the performance attained by the other chosen deep-leaning models.
Capitalism and nationalism in the longue durée: Hegemony, crisis, and state-seeking nationalist mobilization, 1492–2013
Authors: Karataşlı Şahan Savaş
Published: August 2020

This article analyzes the historical dynamics of state-seeking nationalism from 1492 to 2013. By synthesizing Gramsci’s insights of hegemony with world-systems perspective and historical institutionalism, I introduce a new theoretical frame that gives crisis, uneven development, and the relationship between structure and agency, a central place in conceptualizing nationalist mobilization. I also introduce a new major database, that is, The State-Seeking Nationalist Movements (SSNM) database, which includes two unique datasets for historical analysis of nationalism. The first dataset includes articles reporting on state-seeking nationalist activities throughout the world from 1804 to 2013 using international news reports. The second dataset is compiled from secondary sources and it includes revolutionary situations and conflicts involving state-seeking movements from 1492 to 1829. Combining the two original datasets, the SSNM database is a rich new empirical resource for the sociological study of state-seeking nationalism from a long term and global perspective. Historical patterns and multivariate negative binomial regression analysis suggest that SSNM are more likely to take place during periods of financialization, economic crisis, interstate wars, colonial occupation, and intense social unrest. In addition to these structural factors, the findings also bring attention to the role of agency. Nationalist organizations increase the likelihood of state-seeking nationalism but they cannot produce nationalist mobilization as they please. They do it under structural conditions beyond their control that constrain or ease their mobilization. Although I find strong evidence for historical institutionalism, the theory and findings presented in this article suggest that the accumulation of non-hegemonic state power does not help rulers contain state-seeking nationalism. I find no evidence for primordialism, economic/political modernization theories, or globalization-breeds-nationalism arguments. I conclude by discussing how the new theory and new data introduced in this article advances our understanding of the dynamics of nationalism and global governance patterns in world history.
Echoes From the Rocks: Contextualising Land Reform and Resettled Farmer Experiences in Matabeleland, Zimbabwe
Authors: Nel Adrian , Mabhena Clifford
Published: August 2020

This article seeks to characterise and contextualise land reform, and the experiences of resettled farmers, in the under-researched Matabeleland South. It does so through a historicised, landscape approach to changes in the post-Fast Track Land Reform Programme agrarian structure in two wards in Matobo District. While new land dispensation is still consolidating, outcomes are varied, and while beneficiaries are vulnerable to drought in mixed farming there is also notable resilience. Importantly, we argue that changes in the landscape ‘echo’ the past, where material and discursive changes play out at the same time as agrarian livelihoods evolve.
Beacons of modern learning: Diaspora-funded schools in the China-Australia corridor
Authors: Cheng Christopher
Published: August 2020

In the early 20th century, modern school curricula and new-style schools mushroomed in the Chinese remittance landscape of southern China. Breaking away from the two-and-a-half millennia of Confucian tradition, their creation marked a pivotal point of departure between the nation’s past and future. Since overseas migration and modern education both provide a fruitful context for the circulation of new objects and a cross-fertilization of ideas, new schools serve as barometers of social-material change. Research in the present-day cities of Zhongshan and Zhuhai (formerly Heung San County) suggests that diaspora-funded schools were beacons of modern learning within the China–Australia corridor. Both their physical structures and material manifestations invited a new engagement with the modern world.
Singapore as a nexus of migration corridors: The qiaopi system and diasporic heritage
Authors: Liu Hong , Zhang Huimei
Published: August 2020

Singapore has served as a strategic hub of immigration in Southeast Asia over the past two centuries since its founding as an entrepot in 1819. It is not only due to its geographic location at the crossroads between the East and West, but also to its vibrant social and business organizations that have provided effective institutional links both within Southeast Asia and between the region and China. This has, in turn, contributed to the making of Singapore as a key migration corridor among the Chinese diaspora. An overlooked institutional link in this corridor is qiaopi, the remittances-cum-letters sent home by Chinese immigrants from the 1820s to the 1980s, which was part of the intra-regional circulation of capital, goods, people and information. Qiaopi was officially selected into the United Nations Educational, Scientific and Cultural Organization’s (UNESCO’s) “Memory of the World” Register in 2013, thus demonstrating its heritage significance. This paper examines the role of the qiaopi trade in establishing and consolidating Singapore’s place as the most important migrant corridor in Southeast Asia. It also discusses qiaopi from a transnational perspective of diasporic heritage and its contemporary relevance to the heritage corridor.
Soul-searching in the Chinese and Indian diasporas
Authors: Wong Siu-lun
Published: August 2020

The Chinese and Indian diasporas constituted two of the most massive migration flows in the 19th and early 20th centuries. Yet they were seldom compared. This commentary explores one of their key differences, namely, how they handled their lost souls. For the Chinese migrants of that period, what they dreaded most was dying alone in a foreign land and becoming a stray ghost. Their fervent wish was for their bones and souls to be reunited with their forebears in the ancestral graves. Much effort was made individually and collectively to ensure that this final wish would be realized. However, for the Hindu migrants, the same dread induced quite a different response. Their physical remains were of little importance to them. There was no urgency in seeking a return of their souls to their ancestral land. Their fervent wish was for their souls to be ritually purified and reunited with their ancestors in the sacred cosmos. This commentary further examines how these cultural differences also bear on how Chinese and Hindu migrants differ in their remittance behavior, network patterns and homeland ties.
Conceptualizing virtual transnational diaspora: Returning to the ‘return’ of Chinese transnational academics
Authors: Lei Ling , Guo Shibao
Published: August 2020

Transnational migration brings to the fore the various social and professional connections migrants maintain with their home and sojourn countries. Drawing on a qualitative case study with 12 Chinese transnational academics in the field of the social sciences and humanities in three higher education institutions in Beijing, China, this article explores their transnational ways of being and belonging. Informed by the theoretical lens of transnational diaspora, our study indicates that the concept of “returnee” is too restricted to capture the transnational work and learning practices and the self-identification of Chinese transnational academics. Our analysis reveals that the study-abroad experience as a PhD student shapes the multiple and simultaneous ways of being and ways of belonging of the transnational academics in relation to China, the host countries where they pursued doctoral studies and, increasingly, de-territorialized transnational academic communities. Mobilizing digital communication technologies, they create spaces to negotiate their identities as researchers, ethnic Chinese and members of transnational academic communities. Their work and learning in transnational spaces have contributed to the formation of virtual transnational diaspora characterized by the inter-dependence of academics across borders.
Culinary diaspora space: Food culture and the West African diaspora in Hong Kong
Authors: Tat Shum Terence Chun
Published: August 2020

This article examines how food practices contribute to the lived experience of the West African diaspora in Hong Kong. Drawing on in-depth interviews and participant observations of Africans in different African restaurants, grocery stalls and cultural events, this article proposes the concept of a “culinary diaspora space” to examine how they navigate spaces of solidarity and struggle during their integration process through African food-related practices. It highlights the point at which boundaries of inclusion and exclusion are contested by revealing the practical and symbolic roles played by migrants’ traditional food culture throughout the integration process. This research argues that African food outlets are a space of social frictions but also of possible cultural encounters between the Africans and Hong Kong Chinese. By focusing on food-related practices, this research demonstrates how the West African diaspora is felt, embodied and perceived by the host society.
Close or Distant Past? The Role of Temporal Distance in Responses to Intergroup Violence From Victim and Perpetrator Perspectives
Authors: Li Mengyao , Leidner Bernhard , Petrović Nebojša , Prelic Nedim
Published: August 2020

In two different intergroup contexts, three studies investigated the role of temporal distance in responses to intergroup violence from both victim and perpetrator perspectives. In the context of the conflict between Serbs and Bosniaks, Study 1 showed that whereas increased subjective temporal distance predicted less support for justice-restoring efforts and less outgroup empathy among the perpetrator group (Serbs), it predicted more conciliatory, pro-outgroup attitudes among the victim group (Bosniaks). Furthermore, Bosniaks perceived the war as temporally closer than did Serbs. In the context of the U.S.–Iran conflict, Study 2 provided a partial conceptual replication of Study 1 and demonstrated that ingroup glorification motivated more temporal distancing among perpetrators and less temporal distancing among victims. Study 3 further established the causal effects of temporal distance on intergroup outcomes, and that these effects were moderated by glorification. Implications for post-conflict peacebuilding are discussed.
Managerial Political Orientation and Stock Price Crash Risk
Authors: Chen Wanyi , Jin Hengda , Luo Yan
Published: August 2020

This article examines whether managers’ political orientation, which reflects their risk preferences, is associated with firms’ stock price crash risk. We find that stock price crash risk is lower when corporate managers have more conservative political ideologies, and the results are robust to controls for other determinants of crash risk. We use Heckman two-stage model and employ difference-in-differences research design around executive turnovers to show that our results are not simply driven by potential endogeneity. We also document that the relation between managerial political orientation and stock price crash risk is stronger when external monitoring is weaker.

JEL Classifications: G12; G14; M41.
Resilience and Associated Factors Among Parents of Children with Orofacial Clefts
Authors: Yu Guiling , Yu Jing , Li Ting
Published: August 2020

This study aims to examine the associations among social support, coping styles, and resilience in parents of children with orofacial clefts (OFCs). We conducted a cross-sectional study. Through convenience sampling, 306 parents of children with OFCs completed questionnaires on social support, coping styles, and resilience. Pearson’s correlations and hierarchical regression analyses were used to examine the relationships among the selected variables. The results showed that age, gender, educational level, diagnosis of children, severity of OFCs, social support, and positive coping style had significant associations with resilience, which jointly explained 69.1% of the total variance in resilience. The findings suggested that social support and a positive coping style may be instrumental in improving resilience. Further research is required to explore interventions to improve the resilience of parents of children with OFCs.
What elements of a systems’ approach to bereavement are most effective in times of mass bereavement? A narrative systematic review with lessons for COVID-19
Authors: Harrop Emily , Mann Mala , Semedo Lenira , Chao Davina , Selman Lucy E , Byrne Anthony
Published: August 2020

Background:

The global COVID-19 pandemic has left health and social care systems facing the challenge of supporting large numbers of bereaved people in difficult and unprecedented social conditions. Previous reviews have not comprehensively synthesised the evidence on the response of health and social care systems to mass bereavement events.

Aim:

To synthesise the evidence regarding system-level responses to mass bereavement events, including natural and human-made disasters as well as pandemics, to inform service provision and policy during the COVID-19 pandemic and beyond.

Design:

A rapid systematic review was conducted, with narrative synthesis. The review protocol was registered prospectively ( www.crd.york.ac.uk/prospero , CRD 42020180723).

Data sources:

MEDLINE, Global Health, PsycINFO and Scopus databases were searched for studies published between 2000 and 2020. Reference lists were screened for further relevant publications, and citation tracking was performed.

Results:

Six studies were included reporting on system responses to mass bereavement following human-made and natural disasters, involving a range of individual and group-based support initiatives. Positive impacts were reported, but study quality was generally low and reliant on data from retrospective evaluation designs. Key features of service delivery were identified: a proactive outreach approach, centrally organised but locally delivered interventions, event-specific professional competencies and an emphasis on psycho-educational content.

Conclusion:

Despite the limitations in the quantity and quality of the evidence base, consistent messages are identified for bereavement support provision during the pandemic. High quality primary studies are needed to ensure service improvement in the current crisis and to guide future disaster response efforts.
An audit of end-of-life symptom control in patients with corona virus disease 2019 (COVID-19) dying in a hospital in the United Kingdom
Authors: Alderman Bryony , Webber Katherine , Davies Andrew
Published: August 2020

Background:

The literature contains limited information on the problems faced by dying patients with COVID-19 and the effectiveness of interventions to manage these.

Aim:

The aim of this audit was to assess the utility of our end-of-life care plan, and specifically the effectiveness of our standardised end-of-life care treatment algorithms, in dying patients with COVID-19.

Design:

The audit primarily involved data extraction from the end-of-life care plan, which includes four hourly nursing (ward nurses) assessments of specific problems: patients with problems were managed according to standardised treatment algorithms, and the intervention was deemed to be effective if the problem was not present at subsequent assessments.

Setting/participants:

This audit was undertaken at a general hospital in England, covered the 8 weeks from 16 March to 11 May 2020 and included all inpatients with COVID-19 who had an end-of-life care plan (and died).

Results:

Sixty-one patients met the audit criteria: the commonest problem was shortness of breath (57.5%), which was generally controlled with conservative doses of morphine (10–20 mg/24 h via a syringe pump). Cough and audible respiratory secretions were relatively uncommon. The second most common problem was agitation/delirium (55.5%), which was generally controlled with standard pharmacological interventions. The cumulative number of patients with shortness of breath, agitation and audible respiratory secretions increased over the last 72 h of life, but most patients were symptom controlled at the point of death.

Conclusion:

Patients dying of COVID-19 experience similar end-of-life problems to other groups of patients. Moreover, they generally respond to standard interventions for these end-of-life problems.
The role and response of primary healthcare services in the delivery of palliative care in epidemics and pandemics: A rapid review to inform practice and service delivery during the COVID-19 pandemic
Authors: Mitchell Sarah , Maynard Victoria , Lyons Victoria , Jones Nicholas , Gardiner Clare
Published: August 2020

Background:

The increased number of deaths in the community happening as a result of COVID-19 has caused primary healthcare services to change their traditional service delivery in a short timeframe. Services are quickly adapting to new challenges in the practical delivery of end-of-life care to patients in the community including through virtual consultations and in the provision of timely symptom control.

Aim:

To synthesise existing evidence related to the delivery of palliative and end-of-life care by primary healthcare professionals in epidemics and pandemics.

Design:

Rapid systematic review using modified systematic review methods, with narrative synthesis of the evidence.

Data sources:

Searches were carried out in Medline, Embase, PsychINFO, CINAHL and Web of Science on 7th March 2020.

Results:

Only five studies met the inclusion criteria, highlighting a striking lack of evidence base for the response of primary healthcare services in palliative care during epidemics and pandemics. All were observational studies. Findings were synthesised using a pandemic response framework according to ‘systems’ (community providers feeling disadvantaged in terms of receiving timely information and protocols), ‘space’ (recognised need for more care in the community), ‘staff’ (training needs and resilience) and ‘stuff’ (other aspects of managing care in pandemics including personal protective equipment, cleaning care settings and access to investigations).

Conclusions:

As the COVID-19 pandemic progresses, there is an urgent need for research to provide increased understanding of the role of primary care and community nursing services in palliative care, alongside hospices and community specialist palliative care providers.
The Influence of Community-Level Built Environment Factors on Active Social Network Size in Older Adults: Social Activity as a Moderator
Authors: Asiamah Nestor , Kouveliotis Kyriakos , Eduafo Richard , Borkey Richard
Published: August 2020

Background

This study examined the influence of built environmental factors in the community on active social network size as well as the moderating influence of different dimensions of social activity on this relationship.

Methods

This study employed the cross-sectional and correlational approaches to construct a scale measuring key community-level built environment factors and test the moderating influence of social activity on the association between these factors and active social network size in older adults. The study population was all 3,211 older adults who were resident in Accra and were part of the database of the Social Security and National Insurance Trust. Participants were 515 older adults in Accra aged 60 years or more who met some inclusion criteria. A self-reported questionnaire, including a new scale measuring the built environment factors, was used to collect data. Principal component analysis with varimax rotation and confirmatory factor analysis were used to validate the measurement scales, whereas Pearson’s correlation test and multiple linear regression analysis were used to test the associations of interest.

Results

After controlling for relevant demographic variables, built environment factors in the community have no significant influence on active social network size. Volunteering, support for social ties, and group activity positively moderated the influence of built environment factors on active social network size at p < .05 and β ≥ 0.2.

Conclusion

The study concludes that social activity is essential to the utilization of available built environmental factors by older adults to make active social ties in the community.
Increasing Human Papillomavirus Vaccination and Cervical Cancer Screening in Nigeria: An Assessment of Community-Based Educational Interventions
Authors: Nkwonta Chigozie Anastacia , Hilfinger Messias DeAnne K. , Felder Tisha , Luchok Kathryn
Published: August 2020

We explored the impact of two community-based educational interventions on Nigerian adults’ knowledge and intention to take or encourage human papillomavirus (HPV) vaccine and cervical screenings. Face-to-face presentation and printed pamphlet intervention were delivered to 266 men and women aged 18 to 65 years in 12 locations in urban setting. At baseline, the majority (80%) had poor knowledge of HPV, and less than 12% had ever received or have a family member who had received HPV vaccine or cervical screening. Postintervention, there was significant increase (>70%) in the participants knowledge and intention to take or encourage HPV vaccination and cervical screening. In addition, more than half were willing to pay for HPV vaccine and screening even when expensive. Gender-focused and context-specific low-cost community-based educational interventions are effective in increasing HPV vaccine and cervical screening in sub-Saharan Africa.
A Simple Goal Elicitation Tool Improves Shared Decision Making in Outpatient Orthopedic Surgery: A Randomized Controlled Trial
Authors: Mertz Kevin , Shah Romil F. , Eppler Sara L. , Yao Jeffrey , Safran Marc , Palanca Ariel , Hu Serena S. , Gardner Michael , Amanatullah Derek F. , Kamal Robin N.
Published: August 2020

Introduction. Shared decision making involves educating the patient, eliciting their goals, and collaborating on a decision for treatment. Goal elicitation is challenging for physicians as previous research has shown that patients do not bring up their goals on their own. Failure to properly elicit patient goals leads to increased patient misconceptions and decisional conflict. We performed a randomized controlled trial to test the efficacy of a simple goal elicitation tool in improving patient involvement in decision making. Methods. We conducted a randomized, single-blind study of new patients presenting to a single, outpatient surgical center. Prior to their consultation, the intervention group received a demographics questionnaire and a goal elicitation worksheet. The control group received a demographics questionnaire only. After the consultation, both groups were asked to complete the Perceived Involvement in Care Scale (PICS) survey. We compared the mean PICS scores for the intervention and control groups using a nonparametric Mann-Whitney Wilcoxon test. Secondary analysis included a qualitative content analysis of the patient goals. Results. Our final cohort consisted of 96 patients (46 intervention, 50 control). Both groups were similar in terms of demographic composition. The intervention group had a significantly higher mean (SD) PICS score compared to the control group (9.04 [2.15] v. 7.54 [2.27], P < 0.01). Thirty-nine percent of patient goals were focused on receiving a diagnosis or treatment, while 21% of patients wanted to receive education regarding their illness or their treatment options. Discussion. A single-step goal elicitation tool was effective in improving patient-perceived involvement in their care. This tool can be efficiently implemented in both academic and nonacademic settings.
Radiographic and Symptomatic Knee Osteoarthritis 32 to 37 Years After Acute Anterior Cruciate Ligament Rupture
Authors: Kvist Joanna , Filbay Stephanie , Andersson Christer , Ardern Clare L. , Gauffin Håkan
Published: August 2020

Background:

The long-term prevalence of knee osteoarthritis (OA) after anterior cruciate ligament (ACL) injury is unknown, especially in patients without a history of ACL surgery.

Purpose:

To (1) describe the prevalence of radiographic OA, symptomatic OA, and knee replacement surgery 32 to 37 years after acute ACL injury and to (2) compare the prevalence of radiographic OA, symptomatic OA, and knee symptoms between patients allocated to early ACL surgery or no ACL surgery and patients who crossed over to ACL surgery.

Study Design:

Cohort study; Level of evidence, 2.

Methods:

Participants aged 15 to 40 years at the time of ACL injury were allocated to surgical (augmented or nonaugmented ACL repair) or nonsurgical ACL treatment within 14 days of injury. At 32 to 37 years after the initial injury, 153 participants were followed up with plain weightbearing radiographs and completed 4 subscales from the Knee injury and Osteoarthritis Outcome Score (KOOS). Radiographic OA was defined as Kellgren and Lawrence grade 2 or higher. Symptomatic OA was defined as radiographic OA plus knee symptoms measured with the KOOS.

Results:

Participants allocated to ACL surgery (n = 64) underwent surgery at a mean ± SD of 5 ± 4 days (range, 0-11 days) after injury. Of the 89 participants allocated to no ACL surgery, 53 remained nonsurgically treated, 27 had ACL surgery within 2 years, and 9 had ACL surgery between 3 and 21 years after injury. In the total sample, 95 participants (62%) had radiographic tibiofemoral OA, including 11 (7%) who had knee replacement. The prevalence of radiographic tibiofemoral OA was lower in the group allocated to ACL surgery compared with the group who never had ACL surgery (50% vs 75%; P = .005). The prevalence of symptomatic OA (50% in the total sample) and patellofemoral radiographic OA (35% in the total sample) was similar between groups.

Conclusion:

Patients allocated to early ACL surgery, performed a mean 5 days after injury, had a lower prevalence of tibiofemoral radiographic OA at 32 to 37 years after injury compared with patients who never had ACL surgery. The prevalences of symptomatic OA, radiographic patellofemoral OA, and knee symptoms were similar irrespective of ACL treatment. Overall, the prevalence of OA after ACL injury was high.

Registration:

NCT03182647 (ClinicalTrials.gov identifier)
Development and Validation of Lost Days of Labor Productivity Scale to Evaluate the Business Cost of Intimate Partner Violence
Authors: Duvvury Nata , Vara-Horna Arístides , Chadha Mrinal
Published: August 2020

Developing scientific evidence showing the impact of intimate partner violence (IPV) on companies’ productivity is an effective way to involve them in IPV prevention. However, there are no suitable and brief self-report instruments available that measure this impact on labor settings. This study develops and assesses the measurement properties of lost days of labor productivity scale based on tardiness, absenteeism, and presenteeism which may be due to IPV. Fourteen items have been developed and tested for 2,017 employees in 306 companies in Ghana, Pakistan, and South Sudan. Descriptive statistics, confirmatory factor analysis, heterotrait–monotrait matrix, and reliability coefficients have been conducted to assess the reliability of the scores. Confirmatory factor analysis indicates a two-factor second-order solution, stable by sex and countries. All subscales demonstrate good reliability, construct and discriminant validity, showing that the scale is a valid and reliable self-report questionnaire, which may measure the impact of IPV on businesses.
Snuggling Together or Exploring Options? A Multilevel Analysis of Nonprofit Partnership Formation and Evolution in an Unstable Institutional Context
Authors: AbouAssi Khaldoun , Wang Rong , Huang Kun
Published: August 2020

What predicts the formation and evolution of partnerships in unstable institutional contexts? We answer this question by examining the partnership field of environmental nonprofit organizations based in Lebanon. Employing descriptive and inferential network methods, we find organizational attributes such as scope, operations, and age to be significant predictors of partnership formation. In particular, organizations working in the same issue areas are more likely to partner with each other; age and scope complementarity also drives the partnership formation over time. Furthermore, the results reveal that organizations are more likely to form partnerships with their partners’ partners, and consequently stable clusters or subgroups emerge over time. These findings are suggestive but are the first to provide a multilevel analysis of nonprofit partnership formation and evolution.
Researching COVID-19: A research agenda for public policy and administration scholars
Authors: Dunlop Claire A , Ongaro Edoardo , Baker Keith
Published: August 2020

Coronavirus (COVID-19) is one of the defining policy challenges of an era. In this article, we sketch some possible ways in which the public policy and administration community can make an enduring contribution about how to cope with this terrible crisis. We do so by offering some elements that delineate a tentative research agenda for public policy and administration scholars, to be pursued with epistemic humility. We outline the contours of seven analytical themes that are central to the challenges presented by COVID-19: policy design and instruments, policy learning, public service and its publics, organisational capacity, public governance, administrative traditions and public sector reforms in multi-level governance (MLG). The list is neither exhaustive nor exclusive to COVID-19. The knowledge we can generate must speak not only to the daunting challenge of COVID-19 itself but also to policymakers, and indeed humankind, trying to cope with future unexpected but high impact threats, by leveraging better public policies and building administrative capacities to enable more resilient, equitable and effective public services.
Wheel–rail stochastic dynamics and rail wear analysis of small radius curved sections of a tram line based on generalized probability density evolution
Authors: Zeng Zhi-ping , Huang Xu-dong , Wang Jun-dong , Liu Fu-shan , Wang Wei-dong , Shuaibu Abdulmumin Ahmed
Published: August 2020

Compared with ordinary railways, the curve radius of tram lines tends to be smaller, with minimum values of only 30 m. Therefore, wheel–rail interaction is more intense and complicated in sections of small radius tram line curves. Using a stochastic variable sample set based on a generalized probability density evolution method, the stochastic variable–spectrum representation method was used to generate a time-domain sample set of stochastic track irregularities. By inputting the stochastic set of track irregularities into a tram-track coupled dynamic system model, the stochastic dynamic response of the coupled dynamic system can be obtained. Moreover, by substituting the stochastic dynamic system response into the generalized probability density evolution formula, the process of probability density evolution of each evaluation index can be obtained by the finite difference method. Finally, the dynamic response of the tram-track coupled dynamic system can be evaluated by the probability distribution of each index. By setting a series of specific groove rail wear values, a tram-track coupled dynamic analysis was carried out, and compared with the specification requirements, vehicle safety limits under different wear values were obtained. This research has great engineering value for guiding the routine maintenance of small radius curve sections of trams.
Velocity characteristics in a multiphase pump under different tip clearances
Authors: Shi Guangtai , Liu Zongku , Xiao Yexiang , Li Helin , Liu Xiaobing
Published: August 2020

To investigate the effect of tip clearance on the velocity distribution in a multiphase pump, the internal flow and velocity distribution characteristics in pump under different tip clearances are studied using experimental and numerical methods. Simulations based on the Reynolds-Averaged Navier-Stokes equations (RANS) and the standard k-ε turbulence model are carried out using ANSYS CFX. Under conditions of inlet gas void fraction (IGVF) is 5% at the flow rate of 0.6Q, 0.7Q and 0.8Q (Q is the design flow rate), the accuracy of the numerical method is verified by comparing with the experimental data using high-speed photography. Results show that the leakage flow interacts with the main flow and evolves into the tip leakage vortex (TLV). Due to the TLV, the pressure, velocity, turbulent kinetic energy (TKE), vorticity and streamlines on the S2 stream surface in the impeller and diffuser are changed greatly under different tip clearances. The velocities at the impeller outlet and diffuser inlet along the radial direction are also changed. The axial velocity distribution is similar to the meridional velocity distribution at the impeller blade outlet. While the relative velocity and absolute velocity distribution show the opposite trends. In addition, the vorticity is larger near the tip separated vortex and the hydraulic loss in pump is also increased due to the TLV.
Perspectives and Experiences of Obstetricians Who Provide Labor and Delivery Care for Micronesian Women in Hawai‘i: What Is Driving Cesarean Delivery Rates?
Authors: Delafield Rebecca , Elia Jennifer , Chang Ann , Kaneshiro Bliss , Sentell Tetine , Pirkle Catherine M.
Published: August 2020

Access to cesarean delivery is vital for quality obstetrical care, but the procedure can increase maternal mortality, morbidity, and complications in subsequent deliveries. The objective of this study was to describe obstetrician–gynecologists’ (OB-GYNs) perspectives on labor and delivery care for Micronesian women in Hawai‘i and possible factors contributing to higher cesarean delivery rates among that racial/ethnic group. The Framework Method guided the analysis of 13 semi-structured interviews with OB-GYNs. Study results indicated that OB-GYNs were more likely to attribute racial/ethnic differences in mode of delivery to challenges resulting from nonmedical factors, particularly communication and negative attitudes toward Micronesian patients, than to medical risk factors. In this study, we explored aspects of care that cannot be captured in medical charts or clinical data, but may impact health outcomes for this population. The findings could help improve care for Micronesian women, with lessons applicable to other racial/ethnic minority groups.
Implementing Publicly Funded Noninvasive Prenatal Testing for Fetal Aneuploidy in Ontario, Canada: Clinician Experiences With a Disruptive Technology
Authors: Burgess Raquel , Cernat Alexandra , Little Leichelle , Vanstone Meredith
Published: August 2020

The last decade has experienced unprecedented uptake of noninvasive prenatal testing (NIPT), creating significant changes in the way prenatal clinicians provide services. Through the lens of social shaping of technology, we examine the effects of the introduction of this technology on the health care system in Ontario, Canada. Using a qualitative descriptive approach, we conducted a cross-sectional study investigating clinicians’ perspectives of NIPT in 2014, 2016, and 2018. Through in-depth interviews ( n = 37), we explored their perspectives on the impact of NIPT on their referral practices, workload, coordination of testing modalities, education and counseling, and elicited their views on recent expansions of the test. Findings suggest that the introduction of NIPT has created unintended consequences with respect to clinician workload and wellness, clinician education, equity of access, and public system resources. Responsiveness from decision makers is key to ensuring the responsible use of NIPT in the health care system.
Safety and Efficacy of a Percutaneously Inserted Ventricular Support Device Purge Solution Heparin 25 U/mL
Authors: Jiang Christine , Stuart Misa , Makowski Charles , Jennings Douglas L. , To Long
Published: August 2020

Background:

The Impella is a percutaneous ventricular assist device (pVAD) that provides temporary hemodynamic support to patients with cardiogenic shock or for protected percutaneous coronary intervention. The manufacturer recommends a 50-U/mL concentration of heparin purge solution (or 25 U/mL as an alternative), with systemic heparin to maintain therapeutic anticoagulation during device support. Concomitant use of systemic heparin with the purge solution may increase the risk of bleeding.

Objectives:

The primary objective of this study was to describe the prevalence of thrombosis and bleeding using a less-concentrated heparin purge solution (25 U/mL) in combination with systemic heparin therapy.

Methods:

This was a retrospective observational cohort study of patients who required at least 12 hours of pVAD support and received 25-U/mL concentration of heparin purge solution between January 1, 2014, and May 31, 2017. The primary end points were the rate of thrombotic and bleeding events. Secondary end points included the percentage of time within the therapeutic activated partial thromboplastin time (aPTT) range. Descriptive statistics were utilized for data analysis.

Results:

Of the 161 patients screened, 100 met inclusion criteria; 63% of patients experienced a bleeding event, with Bleeding Academic Research Consortium (BARC) type 3a being the most common. Median percentages of subtherapeutic and supratherapeutic aPTT values were similar between the bleeding and nonbleeding groups. Two patients experienced thrombotic events.

Conclusion and Relevance:

Based on our findings, the device thrombosis rate was 2% and the rate of major bleeding (BARC 3a and higher) was 35%. This study provides descriptive outcomes data of a lower-concentration heparin purge solution.
Families in Transition: The Lived Experience of Parenting a Transgender Child
Authors: Wagner Linda D. , Armstrong Elizabeth
Published: August 2020

Research exploring the parents’ experience of their child undergoing gender transition is almost nonexistent. However, as the number of individuals who identify as transgender increases, gender identity will continue to evolve; therefore, supporting families of these individuals is paramount. Parents of transgender children were interviewed and yielded five themes: (a) It Rocks Your World; (b) Dancing Around in a Way that Doesn’t Distance; (c) Your Child Is Still Your Child; (d) Worrying About the Future; and (e) Transformational: Finally an Answer. These themes begin to identify the complex nature and struggles parents face as they encounter the emotional and physical aspects of their child’s gender transition. The findings raise awareness of the parents’ perspective, provide a better understanding of the complex family issues that occur, and provide nursing suggestions on how to continue to work to facilitate “healthy families” and promote cultural sensitivity.
The Nature of Technological Change in the Chinese Hotel Sector
Authors: Peypoch Nicolas , Song Yuegang , Zhang Linjia
Published: August 2020

This article investigates the role of technological change in the Chinese hotel sector over the period 2005 to 2015. The analysis is conducted at the provincial level and on the star-rating hotel basis. A three-step approach is adopted. First, the Malmquist productivity index and its decomposition into efficiency and technological change is estimated. Second, the significance of each component is statistically tested. Third, the technological change is decomposed to analyze the Hicks neutrality assumption. The findings show that the Chinese hotel sector experienced an overall productivity growth, which is mainly and significantly driven by a technological progress. In most of the cases, the technological change is not neutral, and input and output biases are characterized.