bluuebunny/crossref_metadata_2025_split huggingface dataset:
Performance of Deep and Shallow Neural Networks, the Universal Approximation Theorem, Activity Cliffs, and QSAR
Authors: Winkler David A. , Le Tu C. 
Published: October 2016

AbstractNeural networks have generated valuable Quantitative Structure‐Activity/Property Relationships (QSAR/QSPR) models for a wide variety of small molecules and materials properties. They have grown in sophistication and many of their initial problems have been overcome by modern mathematical techniques. QSAR studies have almost always used so‐called “shallow” neural networks in which there is a single hidden layer between the input and output layers. Recently, a new and potentially paradigm‐shifting type of neural network based on Deep Learning has appeared. Deep learning methods have generated impressive improvements in image and voice recognition, and are now being applied to QSAR and QSAR modelling. This paper describes the differences in approach between deep and shallow neural networks, compares their abilities to predict the properties of test sets for 15 large drug data sets (the kaggle set), discusses the results in terms of the Universal Approximation theorem for neural networks, and describes how DNN may ameliorate or remove troublesome “activity cliffs” in QSAR data sets.
A domain coupling method for finite element digital image correlation with mechanical regularization: Application to multiscale measurements and parallel computing
Authors: Bouclier Robin , Passieux Jean‐Charles 
Published: October 2016

SummaryA general method is proposed to couple two subregions analyzed with finite element digital image correlation even when using a mechanical regularization (regularized digital image correlation). A Lagrange multiplier is introduced to stitch both displacements fields in order to recover continuity over the full region of interest. Another interface unknown is introduced to ensure, additionally, the equilibrium of the mechanical models used for regularization. As a first application, the method is used to perform a single measurement from images at two different resolutions. Secondly, the method is also extended to parallel computing in regularized digital image correlation. The problem is formulated at the interface and solved with a Krylov‐type algorithm. A dedicated preconditioner is proposed to significantly accelerate convergence. The resulting method is a good candidate for the analysis of large data sets. Copyright © 2016 John Wiley & Sons, Ltd.
Conservation of generalized momentum maps in mechanical optimal control problems with symmetry
Authors: Betsch Peter , Becker Christian 
Published: October 2016

SummaryIn this paper, a structure‐preserving direct method for the optimal control of mechanical systems is developed. The new method accommodates a large class of one‐step integrators for the underlying state equations. The state equations under consideration govern the motion of affine Hamiltonian control systems. If the optimal control problem has symmetry, associated generalized momentum maps are conserved along an optimal path. This is in accordance with an extension of Noether's theorem to the realm of optimal control problems. In the present work, we focus on optimal control problems with rotational symmetries. The newly proposed direct approach is capable of exactly conserving generalized momentum maps associated with rotational symmetries of the optimal control problem. This is true for a variety of one‐step integrators used for the discretization of the state equations. Examples are the one‐step theta method, a partitioned variant of the theta method, and energy‐momentum (EM) consistent integrators. Numerical investigations confirm the theoretical findings. Copyright © 2016 John Wiley & Sons, Ltd.
Transfer of nursing home residents to emergency departments: organizational differences between nursing homes with high vs. low transfer rates
Authors: Kirsebom Marie , Hedström Mariann , Pöder Ulrika , Wadensten Barbro 
Published: October 2016

AbstractAimTo explore possible factors in the organization of nursing homes that could be related to differences in the rate of transfer of residents from nursing homes to emergency department.DesignExplorative.MethodIn a single municipality, qualitative and quantitative data were collected from documents and through semi‐structured interviews with 11 RNs from five nursing homes identified as having the highest vs. six identified as having the lowest transfer rates to emergency department. Data were analysed by non‐parametric tests and basic content analysis.ResultsAll nursing homes in the highest transfer rate group and one in the lowest transfer rate group were run by private for‐profit providers. Compared with the low group, the high group had fewer updated advance care plans and the RNs interviewed had less work experience in care of older people and less training in care of persons with dementia. There was no difference in nursing home size or staff/resident ratio. The RNs described similar possibilities to provide palliative care, medical equipment and perceived medical support from GPs.
Separating Sheep (Ovis aries L.) and Goats (Capra hircus L.) Using Geometric Morphometric Methods: An Investigation of Astragalus Morphology from Late and Final Bronze Age Central Asian Contexts
Authors: Haruda A. F. 
Published: October 2016

AbstractMany qualitative and quantitative methods for the separation of sheep and goat bones are based upon Middle Eastern, Mediterranean and European specimens. However, these methods may not be as applicable in other geographical contexts due to regional morphological variation. In order to address this, both traditional and geometric morphometric methods were applied to sheep, (Ovis aries L.) and goat (Capra hircus L.) astragali from archaeological sites from Kazakhstan dating to the Late and Final Bronze Age (1900–900 bce). This exploratory research confirmed that qualitative features remained useful for distinguishing between species, while traditional morphometric methods were unable to conclusively support the field identification of species. Geometric morphometric methods found significant morphological differences between species and confirmed group membership while exploring specific qualitative features that were effective in distinguishing between sheep and goat in Central Asian contexts. Copyright © 2016 John Wiley & Sons, Ltd.
Child Poverty, the Great Recession, and the Social Safety Net in the United States
Authors: Bitler Marianne , Hoynes Hilary , Kuka Elira 
Published: October 2016

AbstractIn this paper, we comprehensively examine the effects of the Great Recession on child poverty, with particular attention to the role of the social safety net in mitigating the adverse effects of shocks to earnings and income. Using a state panel data model and data for 2000 to 2014, we estimate the relationship between the business cycle and child poverty, and we examine how and to what extent the safety net is providing protection to at‐risk children. We find compelling evidence that the safety net provides protection; that is, the cyclicality of after‐tax‐and‐transfer child poverty is significantly attenuated relative to the cyclicality of private income poverty. We also find that the protective effect of the safety net is not similar across demographic groups, and that children from more disadvantaged backgrounds, such as those living with Hispanic or single heads, or particularly those living with immigrant household heads—or immigrant spouses—experience larger poverty cyclicality than those living with non‐Hispanic white or married heads, or those living with native household heads with native spouses. Our findings hold across a host of choices for how to define poverty. These include measures based on absolute thresholds or more relative thresholds. They also hold for measures of resources that include not only cash and near‐cash transfers net of taxes but also several measures of the value of public medical benefits.
P‐type tin‐oxide thin film transistors for blue‐light detection application
Authors: Chen Po‐Chun , Chiu Yu‐Chien , Zheng Zhi‐Wei , Cheng Chun‐Hu , Wu Yung‐Hsien 
Published: October 2016

We reported the characteristics of p‐type tin‐oxide (SnO) thin film transistors (TFTs) upon illumination with visible light. Our p‐type TFT device using the SnO film as the active channel layer exhibits high sensitivity toward the blue‐light with a high light/dark read current ratio (Ilight/Idark) of 8.2 × 103 at a very low driven voltage of <3 V. Since sensing of blue‐light radiation is very critical to our eyes, the proposed p‐type SnO TFTs with high sensitivity toward the blue‐light show great potential for future blue‐light detection applications.
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Implementation Strategies to Improve Knowledge and Adherence to Spinal Cord Injury Guidelines
Authors: Reynolds Staci Sue , Murray Laura L. , McLennon Susan M. , Ebright Patricia R. , Bakas Tamilyn 
Published: October 2016

Abstract

Purpose:
The purpose of this study was to evaluate a bundle of implementation strategies (local opinion leaders, printed educational materials, and educational outreach) to increase neurocritical care nurses’ knowledge of and adherence to spinal cord injury guidelines.

Design:
A preprogram, postprogram, and follow-up design was used to evaluate outcomes.

Methods:
Adherence was measured via self-reported anticipatory adherence; knowledge was measured by an author-developed assessment. Repeated-measures ANOVA was used for data analysis.

Findings:
Improvements in nursing knowledge and adherence were found from preprogram to postprogram to follow-up time points.

Conclusions:
Outcomes noted in this study provide additional support for using this bundle of implementation strategies and were consistent with previous research documenting the usefulness of these strategies.

Clinical Relevance:
Although further research is needed, this study highlighted a systematic way of implementing evidence-based practices to improve neurocritical care nurses’ knowledge of and adherence to spinal cord injury guidelines.
An enhanced multi‐server authentication protocol using password and smart‐card: cryptanalysis and design
Authors: Maitra Tanmoy , Islam SK Hafizul , Amin Ruhul , Giri Debasis , Khan Muhammad Khurram , Kumar Neeraj 
Published: October 2016

AbstractAt the present time, application of online communication systems are rapidly increasing and most of the clients depend on a set of servers to fulfill their daily needs. In order to access these servers, a client (user) needs to register to each server with different login credentials. To circumvent this situation, the concept of multi‐server authentication has been adopted, where a user can access all the servers using a single login credential. In this paper, a two‐factor multi‐server authentication protocol, which is proposed by Leu and Hsieh, is analyzed and observed that the forgery attack and the off‐line password‐guessing attack can be made on it. Further, the off‐line password‐guessing attack and other security threats are found in similar kind of multi‐server authentication protocol, which is designed by Li et al. This paper mainly focuses on enhancing the securities of the previously mentioned protocols and thus proposed a new protocol. We have employed formal and informal security analysis to analyze the proposed protocol. The performance of our protocol is also compared with the related protocols. It can also be noted that the designed protocol accomplishes mutual authentication, session key verification, and identity and password change phases. Copyright © 2016 John Wiley & Sons, Ltd.
ABKS‐CSC: attribute‐based keyword search with constant‐size ciphertexts
Authors: Yang Ye , Han Jinguang , Susilo Willy , Yuen Tsz Hon , Li Jiguo 
Published: October 2016

AbstractAttribute‐based keyword search (ABKS) was proposed to enable a third party to search encrypted keywords without compromising the security of the original data. Because it can express flexible access policy, ABKS has attracted a lot of attention. Existing ABKS schemes mainly focused on the expression of access structures, while the computation cost and communication cost are linear with the number of required attributes. Therefore, existing ABKS schemes are unsuitable to the devices that have constrained space and computing power, such as smart phone and tablet.In this paper, an ABKS with constant‐size ciphertext scheme is proposed. The proposed scheme captures the following nice features: (1) The index encryption algorithm has constant computation cost; (2) the searchable ciphertexts are constant size; (3) the trapdoors for keywords are constant size; and (4) the test algorithm has constant computation cost. To the best of our knowledge, it is the first time that an ABKS with constant‐size ciphertext scheme is proposed. Copyright © 2016 John Wiley & Sons, Ltd.
A survey and classification of web phishing detection schemes
Authors: Varshney Gaurav , Misra Manoj , Atrey Pradeep K. 
Published: October 2016

AbstractPhishing is a fraudulent technique that is used over the Internet to deceive users with the goal of extracting their personal information such as username, passwords, credit card, and bank account information. The key to phishing is deception. Phishing uses email spoofing as its initial medium for deceptive communication followed by spoofed websites to obtain the needed information from the victims. Phishing was discovered in 1996, and today, it is one of the most severe cybercrimes faced by the Internet users. Researchers are working on the prevention, detection, and education of phishing attacks, but to date, there is no complete and accurate solution for thwarting them. This paper studies, analyzes, and classifies the most significant and novel strategies proposed in the area of phished website detection, and outlines their advantages and drawbacks. Furthermore, a detailed analysis of the latest schemes proposed by researchers in various subcategories is provided. The paper identifies advantages, drawbacks, and research gaps in the area of phishing website detection that can be worked upon in future research and developments. The analysis given in this paper will help academia and industries to identify the best anti‐phishing technique. Copyright © 2016 John Wiley & Sons, Ltd.
Mitigation of black hole attacks in Routing Protocol for Low Power and Lossy Networks
Authors: Ahmed Firoz , Ko Young‐Bae 
Published: October 2016

AbstractRouting Protocol for Low Power and Lossy Networks (RPL) has been standardized by the Internet Engineering Task Force to efficiently manage the functions of the network layer when providing Internet connectivity for wireless sensor networks. RPL has been designed for constrained devices and networks. Owing to their constrained nature, RPL‐based networks can be exposed to a wide variety of security attacks. One of the most serious attacks in RPL is a black hole attack, where a malicious node silently drops all the packets that it is supposed to forward. This paper proposes a mitigation technique against black hole attack with low packet loss and high reliability. The proposed technique consists of a local decision and a global verification process. First, each node observes the communication behavior of its neighboring nodes by overhearing packets transmitted by its neighbors and attempts to identify suspicious nodes based on their behavior. In the second process, if a node identifies a suspicious node, then it verifies whether the suspicious node is a black hole. We demonstrate that the proposed approach increases packet delivery rate significantly and detects black hole attack effectively. Copyright © 2016 John Wiley & Sons, Ltd.
The expanding domain of strategic management research and the quest for integration
Authors: Durand Rodolphe , Grant Robert M. , Madsen Tammy L. 
Published: October 2016

Research summary: This special issue of Strategic Management Journal was motivated by concern that the growing scope and diversity of the strategic management field creates the risk of incoherence and fragmentation and the belief that research reviews could contribute to synthesis and integration. In this introductory essay, we address the expanding domain of strategic management, consider where its boundaries lie, identify the forces engendering fragmentation, and discuss how this special issue—and research reviews in general—can assist convergence within the field of strategy. We conclude by addressing the potential for integration more broadly in relation to the theories we deploy, the phenomena we investigate, and cohesiveness of our scholarly community.Managerial summary: The expanding domain of strategic management reflects the widening range of strategic issues that practising managers face. However, the fragmentation that has accompanied this broadening scope impedes the usefulness of strategic management research in guiding strategic decision making. We argue that reviews of strategic management research, such as those included within this special issue, can support the accumulation of an integrated, empirically-validated knowledge base which is essential to informing management practice. Copyright © 2016 John Wiley & Sons, Ltd.
Cross‐border acquisitions by state‐owned firms: How do legitimacy concerns affect the completion and duration of their acquisitions?
Authors: Li Jing , Xia Jun , Lin Zhouyu 
Published: October 2016

Research summary: Cross‐border acquisitions may raise legitimacy concerns by host‐country stakeholders, affecting the acquisition outcomes of foreign firms. We propose that theorization by local regulatory agencies is a key mechanism that links legitimacy concerns with acquisition outcomes. Given that theorization is time consuming and its outcome is uncertain, we argue that state‐owned foreign firms experience a lower likelihood of acquisition completion and a longer duration for completing a deal than other foreign firms. Moreover, we introduce a set of firm characteristics (target public status, target R&D alliances, and acquirer acquisition and alliance experiences) that may affect the threshold level of legitimacy, thereby altering the proposed relationships. Our framework and findings provide useful implications for institutional theory on its core concept of legitimacy.Managerial summary: Cross‐border acquisitions by state‐owned foreign firms may lead to national security concerns and thus debates and discussions among local regulatory agencies. We argue that such institutional processes may reduce the likelihood of acquisition completion and prolong the duration of acquisition completion. Using cross‐border acquisitions in the United States, we find that acquisitions by state‐owned foreign firms are not less likely to be completed than acquisitions by other foreign firms, but they take more time to be completed. Moreover, state‐owned foreign firms are less likely to complete an acquisition when the target firm has more R&D alliances. However, their acquisition experience and alliance experience in the host country increase the likelihood of acquisition completion, whereas their alliance experience alone shortens the acquisition duration. Copyright © 2016 John Wiley & Sons, Ltd.
Searching crowd knowledge to recommend solutions for API usage tasks
Authors: Campos Eduardo C. , de Souza Lucas B. L. , Maia Marcelo de A. 
Published: October 2016

AbstractStack Overflow (SO) is a question and answer service directed to issues related to software development. In SO, developers post questions related to a programming topic and other members of the site can provide answers to help them. The information available on this type of service is also known as ‘crowd knowledge’ and currently is one important trend in supporting activities related to software development.We present an approach that makes use of ‘crowd knowledge’ in SO to recommend information that can assist developer activities. This strategy recommends a ranked list of question‐answer pairs from SO based on a query. The criteria for ranking are based on three main aspects: the textual similarity of the pairs with respect to the query related to the developer's problem, the quality of the pairs, and a filtering mechanism that considers only ‘how‐to’ posts. We conducted an experiment considering programming problems on three different topics (Swing, Boost and LINQ) widely used by the software development community to evaluate the proposed recommendation strategy. The results have shown that for Lucene + Score + How-to approach, 77.14% of the assessed activities have at least one recommended pair proved to be useful concerning the target programming problem. Copyright © 2016 John Wiley & Sons, Ltd.
Effects of intrauterine retention and postmortem interval on body weight following intrauterine death: implications for assessment of fetal growth restriction at autopsy
Authors: Man J. , Hutchinson J. C. , Ashworth M. , Heazell A. E. , Levine S. , Sebire N. J. 
Published: October 2016

ABSTRACTObjectiveAccording to the classification system used, 15–60% of stillbirths remain unexplained, despite undergoing recommended autopsy examination, with variable attribution of fetal growth restriction (FGR) as a cause of death. Distinguishing small‐for‐gestational age (SGA) from pathological FGR is a challenge at postmortem examination. This study uses data from a large, well‐characterized series of intrauterine death autopsies to investigate the effects of secondary changes such as fetal maceration, intrauterine retention and postmortem interval on body weight.MethodsAutopsy findings from intrauterine death investigations (2005–2013 inclusive, from Great Ormond Street Hospital and St George's Hospital, London) were collated into a research database. Growth charts published by the World Health Organization were used to determine normal expected weight centiles for fetuses born ≥ 24 weeks' gestation, and the effects of intrauterine retention (maceration) and postmortem interval were calculated.ResultsThere were 1064 intrauterine deaths, including 533 stillbirths ≥ 24 weeks' gestation with a recorded birth weight. Of these, 192 (36%) had an unadjusted birth weight below the 10th centile and were defined as SGA. The majority (86%) of stillborn SGA fetuses demonstrated some degree of maceration, indicating a significant period of intrauterine retention after death. A significantly greater proportion of macerated fetuses were present in the SGA population compared with the non‐SGA population (P = 0.01). There was a significant relationship between increasing intrauterine retention interval and both more severe maceration and reduction in birth weight (P < 0.0001 for both), with an average artifactual reduction in birth weight of around −0.8 SD of expected weight. There was an average 12% reduction in fetal weight between delivery and autopsy and, as postmortem interval increased, fetal weight loss increased (P = 0.0001).ConclusionBased on birth weight alone, 36% of stillbirths are classified as SGA. However, fetuses lose weight in utero with increasing intrauterine retention and continue to lose weight between delivery and autopsy, resulting in erroneous overestimation of FGR. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.