bluuebunny/crossref_metadata_2025_split huggingface dataset:
Factors Associated With Degree and Length of Recovery in Children With Mild and Complicated Mild Traumatic Brain Injury
Authors: Gardner James E , Teramoto Masaru , Hansen Colby 
Published: March 2019

AbstractBACKGROUNDA complicated mild traumatic brain injury (C-mTBI) is an mTBI with some form of intracranial abnormality identified radiographically. The lack of knowledge in recovery patterns and no clear guidelines on return to activity in children with C-mTBI provide unique challenges to physicians.OBJECTIVETo examine recovery patterns among three cohorts: mTBI, mTBI with skull fracture only (mTBI-SF), and C-mTBI via a cross-sectional survey.METHODSCaregivers of children with mTBI (from hospital database queries 2010–2013) were mailed a questionnaire on preinjury health, postinjury recovery, and activity patterns before and after injury. We examined degree (0-10 with 10 being complete recovery) and length (in months) of recovery in children with mTBI, and associations of potential risk factors to these variables.RESULTSOf the 1777 surveyed, a total of 285 complete responses were analyzed for this study. Data included 175 (61.4%) children with mTBI, 33 (11.6%) children with mTBI-SF, and 77 (27.0%) children with C-mTBI. Older age and C-mTBI (vs mTBI) were significantly associated with a lower degree and longer period of recovery (P < .05). Predicted probabilities of complete recovery for children with mTBI, those with mTBI-SF, and those with C-mTBI were 65.5%, 52.7%, and 40.0%, respectively. Predicted probabilities of not yet completely recovered after more than a year since injury for these groups were 11.3%, 24.4%, and 37.6%, respectively.CONCLUSIONThese results demonstrate significant differences in children with different forms of mTBI, and argue for further investigation of treatment plans individualized for each form of mTBI.
Article V Conventions and American Federalism: Contemporary Politics in Historical Perspective
Authors: Condray Patrick M , Conlan Timothy J 
Published: March 2019

AbstractThis article examines the federalism implications of state-initiated calls for an Article V convention. Article V of the U.S. Constitution allows two-thirds of the states to call for a convention to consider one or more Constitutional amendments. This article explores the framers’ intent in adding this provision to the Constitution, the history of state efforts to call an Article V convention, and the politics of contemporary efforts to promote such a convention. It utilizes a unique database of 354 state calls for an Article V convention to analyze the evolving politics of this constitutional mechanism. It argues that recent state efforts to promote an Article V convention mirror some historical patterns, particularly the focus on limiting federal government powers in some way. At the same time, Article V initiatives since 2010 diverge from historical practice in their exceedingly partisan nature, which may alter their implications for the federal system.
Liquidity Provision Contracts and Market Quality: Evidence from the New York Stock Exchange
Authors: Bessembinder Hendrik , Hao Jia , Zheng Kuncheng 
Published: March 2019

Abstract
We exploit a discontinuity in the New York Stock Exchange Designated Market Maker (DMM) contract to identify causal effects of DMM participation on equilibrium market outcomes. We document that contractual features that enhance DMM participation are associated with increased depth, narrower bid-ask spreads, and higher rates of price improvement, with most of the improvements attributable to increases in liquidity provision on markets other than the NYSE. These results cannot be attributed to the mechanical effects of the contractual changes and support the interpretation that market making is characterized by strategic complementarity.
Received October 7, 2017; editorial decision December 10, 2018 by Editor Itay Goldstein.
A scoping review of transmission of dengue virus from donors to recipients after solid organ transplantation
Authors: Cedano Jorge Andrés , Mora Bárbara Lucía , Parra-Lara Luis Gabriel , Manzano-Nuñez Ramiro , Rosso Fernando 
Published: March 2019

Abstract
Dengue virus can infect humans through vectorial and non-vectorial transmission. Classically, non-vectorial transmission has been related to vertical transmission and health care–associated infections, but recently transmission to solid organ and bone marrow recipients has been reported. We performed a scoping review of the available literature searching for evidence on screening for dengue in potential organ donors and the use of these infected organs. From 372 unique records identified, 17 were eligible to be included in our scoping study. After applying inclusion and exclusion criteria, three studies were included. These studies described a total of six patients from India (two case reports; n=2) and Colombia (one case series; n=4). Three patients received a liver, two received a kidney and one had a heart transplant. The onset of symptoms occurred in the first week after transplant in all cases and all experienced fever as the primary symptom. All patients presented thrombocytopenia with a platelet count <50 000. None of the patients developed graft rejection. However, four patients presented graft complications. No recipient deaths occurred. There is not a strong recommendation for dengue screening of donors in transplantation guidelines, but in endemic areas, physicians should be aware of this type of transmission before transplantation.
Respiratory Mechanics, Lung Recruitability, and Gas Exchange in Pulmonary and Extrapulmonary Acute Respiratory Distress Syndrome
Authors: Coppola Silvia , Froio Sara , Marino Antonella , Brioni Matteo , Cesana Bruno Mario , Cressoni Massimo , Gattinoni Luciano , Chiumello Davide 
Published: March 2019

Objectives:
Acute respiratory distress syndrome is a clinical syndrome characterized by a refractory hypoxemia due to an inflammatory and high permeability pulmonary edema secondary to direct or indirect lung insult (pulmonary and extrapulmonary form). Aim of this study was to evaluate in a large database of acute respiratory distress syndrome patients, the pulmonary versus extrapulmonary form in terms of respiratory mechanics, lung recruitment, gas exchange, and positive end-expiratory pressure response.

Design:
A secondary analysis of previously published data.

Patients:
One-hundred eighty-one sedated and paralyzed acute respiratory distress syndrome patients (age 60 yr [46–72 yr], body mass index 25 kg/m2 [22–28 kg/m2], and Pao
2/Fio
2 184 ± 66).

Interventions:
Lung CT scan performed at 5 and 45 cm H2O. Two levels of positive end-expiratory pressure (5 and 15 cm H2O) were randomly applied.

Measurements and Main Results:
Ninety-seven and 84 patients had a pulmonary and extrapulmonary acute respiratory distress syndrome. The median time from intensive care admission to the CT scan and respiratory mechanics analysis was 4 days (interquartile range, 2–6). At both positive end-expiratory pressure levels, pulmonary acute respiratory distress syndrome presented a significantly lower Pao
2/Fio
2 and higher physiologic dead space compared with extrapulmonary acute respiratory distress syndrome. The lung and chest wall elastance were similar between groups. The intra-abdominal pressure was significantly higher in extrapulmonary compared with pulmonary acute respiratory distress syndrome (10 mm Hg [7–12 mm Hg] vs 7 mm Hg [5–8 mm Hg]). The lung weight and lung recruitability were significantly higher in pulmonary acute respiratory distress syndrome (1,534 g [1,286–1,835 g] vs 1,342 g [1,090–1,507 g] and 16% [9–25%] vs 9% [5–14%]).

Conclusions:
In the early stage, pulmonary acute respiratory distress syndrome is characterized by a greater impairment of gas exchange and higher lung recruitability. The recognition of the origin of acute respiratory distress syndrome is important for a more customized ventilatory management.
Single particle diffusion characterization by deep learning
Authors: Granik Naor , Nehme Elias , Weiss Lucien E. , Levin Maayan , Chein Michael , Perlson Eran , Roichman Yael , Shechtman Yoav 
Published: March 2019

AbstractDiffusion plays a crucial role in many biological processes including signaling, cellular organization, transport mechanisms, and more. Direct observation of molecular movement by single-particle tracking experiments has contributed to a growing body of evidence that many cellular systems do not exhibit classical Brownian motion, but rather anomalous diffusion. Despite this evidence, characterization of the physical process underlying anomalous diffusion remains a challenging problem for several reasons. First, different physical processes can exist simultaneously in a system. Second, commonly used tools to distinguish between these processes are based on asymptotic behavior, which is inaccessible experimentally in most cases. Finally, an accurate analysis of the diffusion model requires the calculation of many observables, since different transport modes can result in the same diffusion power-law α, that is obtained from the commonly used mean-squared-displacement (MSD) in its various forms. The outstanding challenge in the field is to develop a method to extract an accurate assessment of the diffusion process using many short trajectories with a simple scheme that is applicable at the non-expert level.Here, we use deep learning to infer the underlying process resulting in anomalous diffusion. We implement a neural network to classify single particle trajectories according to diffusion type – Brownian motion, fractional Brownian motion (FBM) and Continuous Time Random Walk (CTRW). We further use the net to estimate the Hurst exponent for FBM, and the diffusion coefficient for Brownian motion, demonstrating its applicability on simulated and experimental data. The networks outperform time averaged MSD analysis on simulated trajectories while requiring as few as 25 time-steps. Furthermore, when tested on experimental data, both network and ensemble MSD analysis converge to similar values, with the network requiring half the trajectories required for ensemble MSD. Finally, we use the nets to extract diffusion parameters from multiple extremely short trajectories (10 steps).
Detecting nanoscale distribution of protein pairs by proximity dependent super-resolution microscopy
Authors: Clowsley Alexander H. , Kaufhold William T. , Lutz Tobias , Meletiou Anna , Michele Lorenzo Di , Soeller Christian 
Published: March 2019

ABSTRACTInteractions between biomolecules such as proteins underlie most cellular processes. It is crucial to visualize these molecular-interaction complexes directly within the cell, to show precisely where these interactions occur and thus improve our understanding of cellular regulation. Currently available proximity-sensitive assays for in-situ imaging of such interactions produce diffraction-limited signals and therefore preclude information on the nanometer-scale distribution of interaction complexes. By contrast, optical super-resolution imaging provides information about molecular distributions with nanometer resolution which has greatly advanced our understanding of cell biology. However, current co-localization analysis of super-resolution fluorescence imaging is prone to false positive signals as the detection of protein proximity is directly dependent on the local optical resolution. Here we present Proximity-Dependent PAINT (PD-PAINT), a method for sub-diffraction imaging of protein pairs, in which proximity detection is decoupled from optical resolution. Proximity is detected via the highly distance-dependent interaction of two DNA labels anchored to the target species. Labeled protein pairs are then imaged with high contrast and nanoscale resolution using the super-resolution approach of DNA-PAINT. The mechanisms underlying the new technique are analyzed by means of coarse-grained molecular simulations and experimentally demonstrated by imaging DNA-origami tiles and epitopes of cardiac proteins in isolated cardiomyocytes. We show that PD-PAINT can be straightforwardly integrated in a multiplexed super-resolution imaging protocol and benefits from advantages of DNA-based super-resolution localization microscopy, such as high specificity, high resolution and the ability to image quantitatively.
A review of the analytical methods used for seaplanes’ performance prediction
Authors: Masri Jafar , Dala Laurent , Huard Benoit 
Published: March 2019

Purpose
This paper aims to investigate the different analytical methods used to predict the performance of seaplanes to define the weaknesses in each method and be able to extend the analytical approach to include the nonlinear terms (unsteadiness).

Design/methodology/approach
First, the elemental hydrodynamic characteristics of seaplanes are discussed. Second, five different analytical methods are reviewed. The advantages and disadvantages of each method are stated. After that, the heave and pitch equations of seaplane motion are illustrated. The procedure of obtaining the solution of the heave and pitch equations of seaplane motion is explained. Finally, the results obtained from the most common methods are compared.

Findings
The results show that the methods are based on different assumptions and considerations. As a result, no method is optimal for all types of seaplanes. Moreover, some of the analytical methods do not study the stability of the seaplane, which is a major issue in the design of seaplanes. In addition, all methods consider the motion as steady and linear. The objective is to extend the work to include the nonlinear effects.

Originality/value
This paper presents some of the analytical methods used in describing the performance of seaplanes and explains how can they be applied. Moreover, it summarises the advantages and disadvantages of each method.
Entrepreneurial knowledge, skills, competencies and performance
Authors: Al Mamun Abdullah , Fazal Syed Ali , Muniady Rajennd 
Published: March 2019

Purpose
This study aims to examine the effect of entrepreneurial skills, market orientation, sales orientations and networking on entrepreneurial competency and performance of micro-enterprises in Kelantan, Malaysia.

Design/methodology/approach
Adopting a cross-sectional design, this paper collected data through structured interviews from 403 micro-entrepreneurs from “Majlis Amanah Rakyat,” Kelantan and “Majlis Agama Islam dan Adat Istiadat,” Kelantan.

Findings
The findings reveal that entrepreneurial skills, market orientation and networking have a positive effect on entrepreneurial competency. Then, entrepreneurial competency, entrepreneurial skills and networking have a positive effect on enterprise performance. The findings show a significant mediation effect of entrepreneurial competency on the relationships between entrepreneurial skills, market orientation and networking and enterprise performance.

Originality/value
Addressing the understudied “human factor” in entrepreneurship, this paper extends the resource-based view and enriches the existing entrepreneurship literature in Malaysia. It provides useful insights into the improvement of micro-enterprise performance, which is crucial for promoting entrepreneurial activities and for enhancing socio-economic conditions among low-income households in Malaysia. Thus, the government and developmental organizations should focus on the development of entrepreneurial skills, market-oriented approach, networking traits and entrepreneurial competencies and subsequently encourage poor households to perform entrepreneurial activities.
“We don’t all see it the same way”
Authors: Semaan Rania W. , Gould Stephen , Chao Mike Chen-ho , Grein Andreas F. 
Published: March 2019

Purpose
Country-of-origin (COO) effects on product evaluations have been widely applied in international marketing, albeit with mixed results. One stream of research values its importance in decision-making, whereas another stream posits that COO has little effect when compared to the greater diagnosticity of other product attributes. This suggests that how and along what other attributes (extrinsic or intrinsic) COO is presented play an important role in its relative impact. The purpose of this paper is to address these mixed results by applying one such framing perspective based on evaluation mode (i.e. separate versus joint evaluation) and preference reversals and their biasing effects to a study of COO and willingness to pay (WTP) for a product.

Design/methodology/approach
A three between-subject (joint evaluation, separate evaluation-domestic and separate evaluation-foreign) experimental design was used to assess whether evaluation mode moderates COO effects on product evaluations.

Findings
Similar results are mirrored across three/four countries. When evaluated separately, consumers value an inferior domestic-made product more than a superior foreign-made one. However, when the domestic- and foreign-made products are presented in joint evaluations, the better foreign-made product is favored.

Research limitations/implications
A number of limitations in terms of countries, consumers within the countries and products studied are addressed along with future research that may address these factors and test the robustness of domestic–foreign preference reversals.

Practical implications
The results of this study reveal practical insights to marketers. Marketing managers for better-quality foreign brands are encouraged to engage in comparative advertising appeals and sell their products in retail stores that hold both domestic and foreign products, whereas marketers for domestic products should create a selling environment that facilitate only a separate evaluation mode to enhance WTP.

Originality/value
This paper provides insights on the diagnosticity of COO when presented alongside intrinsic attributes and the role of evaluation mode in shaping consumers’ preferences. This research suggests that COO has different effects in different evaluation modes, thus explaining some of the mixed results in literature regarding its importance. On the one hand, COO has a decisive effect on product evaluations when products are presented separately. On the other hand, COO effect is overridden by intrinsic cues, which become more apparent when products are presented jointly. Overall, these results demonstrate the robustness of the preference reversal effect across countries and products.
Examining factors that influence information disclosure on social network sites from the perspective of network externalities
Authors: Mouakket Samar , Sun Yuan 
Published: March 2019

PurposeThe purpose of this paper is to develop a research framework by drawing on the network externalities research and previous literature on information systems to understand the antecedents of information disclosure. The framework postulates that the following network externalities are important factors affecting social network sites (SNS) perceived usefulness (PU): perceived external prestige, referent network size and perceived complementarity. In addition, the paper proposes that PU, habit and subjective norms significantly affect information disclosure of SNS among Chinese users.Design/methodology/approachData are collected from 251 Chinese university students who use SNS. Structural equation modeling was applied to test the hypotheses presented in the model.FindingsThe findings provide support for all the hypotheses, with the exception of the influence of referent network size on PU and the influence of subjective norms on information disclosure. Both perceived external prestige and perceived complementarity have reported positive effect on PU of SNS. In turn, the authors have found that PU and habit have positive effects on information disclosure.Originality/valueSNS encourage users to reveal personal information by allowing them to post photos and videos and share their interests and feelings on the site. Yet, limited empirical research has investigated the concept of self-disclosure of personal information particularly among Chinese users of SNS. To fill this research gap, the authors have developed a research framework by drawing on the network externalities research and previous literature on information systems to understand the antecedents of information disclosure.
Budgeting reconsidered: exploring change initiative in a bank
Authors: Valuckas Danielius 
Published: March 2019

PurposeThis study aims to explore and understand a beyond budgeting-inspired initiative to abandon budgeting in a multinational bank.Design/methodology/approachAnalysing data from semi-structured interviews with actors involved in and affected by the change initiative, this paper draws on Kasurinen’s accounting change framework as well as concepts from institutional theory to investigate the rationale for and the challenges of budget abandonment.FindingsAlthough the improving financial market stability and the increasing accountability of banks after the global financial crisis motivated the initial organisational changes, the appointment of a head of finance with experience of beyond budgeting was a major catalyst of change. This change-promoting leader was of utmost importance in providing relevant training and support, facilitating the change initiative and overcoming the initial resistance to change. However, the remnants of former budgeting practice did not regress as intended, and the change initiative stalled.Originality/valueThis research contributes to beyond budgeting and accounting change studies by illustrating a stalled change initiative in the context susceptible to beyond budgeting ideas and highlighting the importance of aligning discourse and meaning with practice and routines.
Corporate ownership concentration and financial reporting quality
Authors: Arthur Neal , Chen Huifa , Tang Qingliang 
Published: March 2019

PurposeThe purpose of this study is to investigate whether a country’s ownership concentration affects the financial reporting quality in a cross-country setting.Design/methodology/approachThis paper uses six accounting and auditing indicators to construct a comprehensive index to measure the country-level financial reporting quality.FindingsThe authors find a non-linear nature of the relationship between the national financial reporting quality and national ownership structure. Specifically, the relation is negative in a relatively spread ownership structure with no controlling shareholders, implying the entrenchment effects dominate. When ownership is highly concentrated, particularly with controlling shareholders whose interest is aligned with that of the firm, the relation turns to positive and alignment effects dominate.Originality/valueThe study is an important extension of prior research examining the financial reporting quality effect of ownership concentration. It enhances the understanding of the role of ownership concentration in determining a country’s financial reporting quality and has potential important policy implications for countries’ reformers and regulators who are concerned with the transparency of financial reporting and the quality of corporate governance.