bluuebunny/crossref_metadata_2025_split huggingface dataset:
Brain-wide electrical spatiotemporal dynamics encode reward anticipation
Authors: Vu Mai-Anh T. , David Lisa K. , Thomas Gwenaëlle E. , Vagwala Meghana , Burrus Caley , Gallagher Neil M. , Wang Joyce , Blount Cameron , Hughes Dalton N. , Adamson Elise , Ndubuizu Nkemdilim , Kim Il Hwan , Soderling Scott , Mague Stephen D. , Adcock R. Alison , Dzirasa Kafui 
Published: October 2019

AbstractAnticipation of an upcoming stimulus induces neural activity across cortical and subcortical regions and influences subsequent behavior. Nevertheless, the network mechanism whereby the brain integrates this information to signal the anticipation of rewards remains relatively unexplored. Here we employ multi-circuit electrical recordings from six brain regions as mice perform a sample-to-match task in which reward anticipation is operationalized as their progress towards obtaining a potential reward. We then use machine learning to discover the naturally occurring network patterns that integrate this neural activity across timescales. Only one of the networks that we uncovered signals responses linked to reward anticipation, specifically relative proximity and reward magnitude. Activity in this Electome (electrical functional connectivity) network is dominated by theta oscillations leading from prelimbic cortex and striatum that converge on ventral tegmental area, and by beta oscillations leading from striatum that converge on prelimbic cortex. Network activity is also synchronized with brain-wide cellular firing. Critically, this network generalizes to new groups of healthy mice, as well as a mouse line that models aberrant neural circuitry observed in brain disorders that show altered reward anticipation. Thus, our findings reveal the network-level architecture whereby the brain integrates spatially distributed activity across timescales to signal reward anticipation.
A multi-object posture coordination method with tolerance constraints for aircraft components assembly
Authors: Zhang Yifan , Wang Qing , Zhao Anan , Ke Yinglin 
Published: October 2019

Purpose
This paper aims to improve the alignment accuracy of large components in aircraft assembly and an evaluation algorithm, which is based on manufacture accuracy and coordination accuracy, is proposed.

Design/methodology/approach
With relative deviations of manufacturing feature points and coordinate feature points, an evaluation function of assembly error is constructed. Then the optimization model of large aircraft digital alignment is established to minimize the synthesis assembly error with tolerance requirements, which consist of three-dimensional (3D) tolerance of manufacturing feature points and relative tolerance between coordination feature points. The non-linear constrained optimization problem is solved by Lagrange multiplier method and quasi-Newton method with its initial value provided by the singular value decomposition method.

Findings
The optimized postures of large components are obtained, which makes the tolerance of both manufacturing and coordination requirements be met. Concurrently, the synthesis assembly error is minimized. Compared to the result of the singular value decomposition method, the algorithm is validated in three typical cases with practical data.

Practical implications
The proposed method has been used in several aircraft assembly projects and gained a good effect.

Originality/value
This paper proposes a method to optimize the manufacturing and coordination accuracy with tolerance constraints when the postures of several components are adjusted at the same time. The results of this paper will help to improve the quality of component assemblies.
Current evidence for the identification and management of premenstrual syndrome in women with intellectual disabilities: a systematic review
Authors: Cooper Nina C. , Balachandran Nair Deepa , Egan Sile , Barrie Andrew , Perera Bhathika 
Published: October 2019

PurposeIntellectual disability (ID) is prevalent in 1 per cent of the population. Premenstrual syndrome (PMS) affects up to 5 per cent of the general population of adult women. Identification of PMS is challenging in women with ID due to differences in communication. Management of PMS in the ID population requires careful consideration of baseline function, co-existing mental and physical health problems, drug interactions as well as complex ethical considerations. The paper aims to discuss this issue.Design/methodology/approachProspero-registered systematic review (CRD42019119398) of papers exploring the diagnosis and management of patients with PMS and ID (n=414). In total, 35 relevant titles were identified and 27 full text papers were assessed for eligibility, resulting in 10 studies for final qualitative analysis.FindingsTen original research papers were included. There are no standardised symptom criteria for diagnosis of PMS in women with ID. Studies relied on observer-reported data. All papers demonstrated higher rates of PMS in women with ID compared with the general adult population. Management was not standardised and varied between centres. Mainstays of treatment included non-steroidal anti-inflammatories, combined oral contraceptive pills and intramuscular progesterone. Newer evidence suggests levonorgestrel intrauterine systems may be appropriate. There was no quantitative method of establishing success of management.Practical implicationsA modified symptom diary should be used for diagnosis in this population. Differentiation between cyclical behavioural change due to pain vs mood disturbance remains challenging. Conservative, psychological and medical management should be the mainstay of treatment, with surgery considered in exceptional cases.Originality/valueThis paper demonstrates the current limited evidence for the management of PMS in women with a diagnosis of ID and offers an overview of the current options for managing these patients’ symptoms.
Analysis of a coupled physical discrete time system by means of extended Euler-Lagrange difference equation and discrete dissipative canonical equation
Authors: Civelek Cem 
Published: October 2019

Purpose
The purpose of this study is the application of the following concepts to the time discrete form. Variational Calculus, potential and kinetic energies, velocity proportional Rayleigh dissipation function, the Lagrange and Hamilton formalisms, extended Hamiltonians and Poisson brackets are all defined and applied for time-continuous physical processes. Such processes are not always time-continuously observable; they are also sometimes time-discrete.

Design/methodology/approach
The classical approach is developed with the benefit of giving only a short table on charge and flux formulation, as they are similar to the classical case just like all other formulation types. Moreover, an electromechanical example is represented as well.

Findings
Lagrange and Hamilton formalisms together with the velocity proportional (Rayleigh) dissipation function can also be used in the discrete time case, and as a result, dissipative equations of generalized motion and dissipative canonical equations in the discrete time case are obtained. The discrete formalisms are optimal approaches especially to analyze a coupled physical system which cannot be observed continuously. In addition, the method makes it unnecessary to convert the quantities to the other. The numerical solutions of equations of dissipative generalized motion of an electromechanical (coupled) system in continuous and discrete time cases are presented.

Originality/value
The formalisms and the velocity proportional (Rayleigh) dissipation function aforementioned are used and applied to a coupled physical system in time-discrete case for the first time to the best of the author’s knowledge, and systems of difference equations are obtained depending on formulation type.
Corporate tax planning and corporate tax disclosure
Authors: Mgammal Mahfoudh Hussein 
Published: October 2019

PurposeThis paper aims to examine the impact of corporate tax planning (TP) on tax disclosure (TD). Using tax expenses data set, with the detailed effective tax rate (ETR) by reconciling individual items of income and expenses.Design/methodology/approachA firm-level panel data set is used to analyse 286 non-financial listed companies on Bursa Malaysia that spans the period 2010-2012. Multivariate statistical analyses were run on the sample data. The empirical understanding of TD depends on public sources of data in the financial statement, characterized in the aggregated note of tax expenses. Fitting with Malaysian environment, the authors measured TD using modified ETR reconciling items.FindingsResults show that TP, exhibit a robust positive influence on TD. This suggests that TP is related to lower corporate TD. In addition, companies with high TP attempt to mitigate the disclosure problem by increasing various TD. The authors further find significant positive impact between each of firm size and industry dummy, on TD. This means that company-specific characteristics are significant factors affecting corporate TD.Research limitations/implicationsThis study contributes to the literature on the effect of TP on TD. It depends on both the signalling theory and the Scholes–Wolfson framework, which are the main theories concerned with TP and TD. Therefore, from a theoretical side, the authors add to the current theories by verifying that users are the party influenced whether positively or negatively, by the extent of TD or the extent of TP activities through Malaysian organizations.Practical implicationsThe evidence found in this paper has important policy and practical implications for the authorities, researchers, decision makers and company managers. The findings can provide them some relevant insights on the importance of TP actions from companies’ perspective and contribute to the discussion of who verifies and deduces from TD directed by companies.Originality/valueThis paper originality is regarded as the first attempt to examine the impact of TP on TD in a developing country such as Malaysia. Malaysian setting is an interesting one to examine because Malaysia could be similar to other countries in Southeast Asia. Results contribute significant insights to the discussion about TD regarding, which parties are responsible for the verification of TD by firms, and which parties benefit from this disclosure. Findings suggest that companies face a trade-off between tax benefits and TD when selecting the type of their TP.
Pricing three cases of performance fees using options methodology
Authors: Messmore Tom , Jones Travis L. 
Published: October 2019

Purpose
Prior research has demonstrated that investment management performance fees have the characteristic of a call option. It is important to examine whether these performance fees are consistent with traditional fee structures used by investment managers. It is also worth examining whether clients or managers benefit significantly more than the other party under performance fee structures. The paper aims to discuss these issues.

Design/methodology/approach
The authors use Black-Scholes options pricing methodology to examine three cases of performance fee structures. The Absolute Hurdle case examines the fee structure where the manager receives a portion of the return over a pre-defined absolute rate of return. The Benchmark Relative Hurdle case shows a fee structure based on performance in excess of the return of a benchmark portfolio. The Breakeven Relative Hurdle case illustrates the fee structure where there is revenue neutrality with the classic management fees when portfolio performance matches the benchmark.

Findings
The findings of this paper illustrate that a particular performance fee structure can be designed to have the same revenue as a traditional investment management fee structure. Such a structure is equally beneficial to both the investment manager and to the client and should have salutary motivational effects to improve investment results, while simultaneously rewarding the manager for value added at a fair price for both the manager and the investor.

Originality/value
This study is unique in that it examines three cases of performance fees and provides a comparison between performance fee structures and traditional investment management fee structures. The findings will assist investment portfolio managers in better setting management fees they charge clients. In addition, this study help with clients who feel they are being charged excessive management fees by their investment manager.
Integrated reports, external assurance and financial performance
Authors: Akisik Orhan , Gal Graham 
Published: October 2019

PurposeThe purpose of this paper is to examine the relationship between integrated reports, external assurance and financial performance for North American firms between 2011 and 2016.Design/methodology/approachCorporate websites were examined for disclosures which included both financial and non-financial information. Compustat North America and Global Reporting Initiative (GRI) websites provided additional data for the analysis.FindingsUsing a panel data analysis, the results provide evidence that there is a significant positive association between integrated reports and multiple measures of financial performance. Moreover, this positive effect is enhanced when integrated reports are assured by accounting firms.Research limitations/implicationsThere are relatively a small number of firms that do this kind of reporting. A major limitation of the study is the small sample size.Practical implicationsAs stakeholders find information in integrated reports relevant, there needs to be standardization on their content and level of assurance. Standard setters and regulators should be involved in setting these standards and assurance guidelines.Social implicationsAlthough it is clear that there is a cost to firms which produce integrated reports, the benefits to society may outweigh these costs. This may go beyond the benefits to shareholders as they make investment decisions.Originality/valueAccording to the knowledge of the authors, this is the first study that examines the impact of integrated reports and external assurance on financial performance for North American firms.
Web-based impression management? Salient features for CSR disclosure prominence
Authors: Chong Sabrina , Rahman Asheq 
Published: October 2019

PurposeThe purpose of this paper is to identify the web-based features of corporate social responsibility (CSR) disclosure that play a role in making CSR information prominent to investors and give the information better recognition for investment decisions.Design/methodology/approachThe authors posit a positive association between the company’s capital market performance and the web-based features used for CSR disclosure by the company. The authors argue that the more effective the feature is in enhancing the prominence of CSR information, the higher is the share turnover and market value of shares of a company, and the lower is its share prices’ bid-ask spread. Five specific web-based features, namely, the location, accessibility, medium, variety and extent of disclosure are identified as features used for web-based CSR disclosure. The research framework is drawn from Brennan and Merkl–Davies’ (2013) impression management strategies and Merton’s (1987) “investor recognition hypothesis”.FindingsThe findings show that visual and structural emphases of CSR information via specific web-based features enhance information prominence and could favourably influence investors’ impression towards the company. Investors are likely to make investment decisions in favour of the company, resulting in a higher share turnover along with increased market value of the shares of the company and lower bid-ask spread of its share prices.Research limitations/implicationsThe paper highlights the significance of utilisation of web-based features in enhancing CSR information prominence for impression management purposes.Practical implicationsThe findings have the potential to benefit preparers, users and policymakers by enhancing their knowledge and understanding of the utilisation of web-based CSR disclosure features. Specifically, preparers will be more aware of web-based feature(s) that could be useful in projecting CSR-related information to their stakeholders.Social implicationsThe study will help enhance the dissemination of web-based CSR information.Originality/valueThe study adds to the literature on web-based CSR disclosure, by developing a structured approach to examine the effectiveness of web-based features for investors’ impression management.
Elevated serum B‐cell activating factor levels in patients with dermatomyositis: Association with interstitial lung disease
Authors: Matsushita Takashi , Kobayashi Tadahiro , Kano Miyu , Hamaguchi Yasuhito , Takehara Kazuhiko 
Published: October 2019

AbstractPatients with dermatomyositis (DM) frequently have myositis‐specific autoantibodies (MSA), which are closely associated with different clinical features. Patients with anti‐aminoacyl‐tRNA synthetase antibody (ARS‐Ab) and anti‐melanoma differentiation‐associated gene 5 (MDA5)‐Ab often have interstitial lung disease (ILD). Recently, anti‐MDA5‐Ab levels have been shown to correlate with disease activity in DM patients. Thus, B cells that are stimulated by excess B‐cell activating factor (BAFF) play an important role in the pathogenesis of DM through auto‐Ab production. In this study, we investigated the role of BAFF in DM patients. We measured the serum BAFF levels in 56 adult DM patients (14 with anti‐ARS‐Ab, 18 with anti‐MDA5‐Ab, seven with anti‐Mi‐2‐Ab and 17 with anti‐transcriptional intermediary factor‐1γ‐Ab) . For a longitudinal study, 130 serum specimens from 10 DM patients with anti‐MDA5‐Ab were analyzed. Serum BAFF levels were significantly higher in DM patients than in healthy controls. DM patients with elevated serum BAFF levels more frequently had ILD. In subgroup analysis, DM patients with anti‐ARS‐Ab and DM patients with anti‐MDA5‐Ab exhibited increased BAFF levels compared with controls, while DM patients with other MSA showed BAFF levels comparable with controls. In the longitudinal study, serum BAFF levels in DM patients with anti‐MDA5‐Ab were decreased after immunosuppressive therapy along with serum levels of anti‐MDA5‐Ab and ferritin, which are biomarkers of disease activity. These results suggest that BAFF plays an important role in the pathogenesis of ILD in DM patients with anti‐ARS and anti‐MDA5‐Ab. Furthermore, serum BAFF level is associated with disease activity in DM patients with anti‐MDA5‐Ab.
Angiotensin‐converting enzyme inhibition, antioxidant activity and cytotoxicity of bioactive peptides from fermented bovine colostrum
Authors: Gaspar‐Pintiliescu Alexandra , Oancea Anca , Cotarlet Mihaela , Vasile Aida Mihaela , Bahrim Gabriela Elena , Shaposhnikov Sergey , Craciunescu Oana , Oprita Elena Iulia 
Published: October 2019

Fermented bovine colostrum rich in bioactive peptides was obtained using Candida lipolytica strains in co‐culture with kefir grains. During fermentation, the pH and total titratable acidity of the product were daily measured. The hydrolysis degree and the electrophoretic pattern of water‐soluble extracts (WSE) of fermented colostrum were analysed. Fractions enriched in peptides with a molecular weight lower than 10 kDa were separated by ultracentrifugation. They showed better modulation of angiotensin‐converting enzyme (ACE) inhibition and cell proliferation, but lower radical scavenging capacity, compared to corresponding WSE.
Assessing immunocompetence in red palm weevil adult and immature stages in response to bacterial challenge and entomopathogenic nematode infection
Authors: Cappa Federico , Torrini Giulia , Mazza Giuseppe , Inghilesi Alberto Francesco , Benvenuti Claudia , Viliani Leonardo , Roversi Pio Federico , Cervo Rita 
Published: October 2019

AbstractParasites and pathogens can follow different patterns of infection depending on the host developmental stage or sex. In fact, immune function is energetically costly for hosts and trade‐offs exist between immune defenses and life history traits as growth, development and reproduction and organisms should thus optimize immune defense through their life cycle according to their developmental stage. Identifying the most susceptible target and the most virulent pathogen is particularly important in the case of insect pests, in order to develop effective control strategies targeting the most vulnerable individuals with the most effective control agent. Here, we carried out laboratory tests to identify the most susceptible target of infection by infecting different stages of the red palm weevil Rhynchophorus ferrugineus (larvae, pupae, male, and female adults) with both a generic pathogen, antibiotic‐resistant Gram‐negative bacteria Escherichia coli XL1‐Blue, and two specific strains of entomopathogenic nematodes (EPNs), Steinernema carpocapsae ItS‐CAO1 and Heterorhabditis bacteriophora ItH‐LU1. By evaluating bacterial clearance, host mortality and parasite progeny release, we demonstrate that larvae are more resistant than adults to bacterial challenge and they release less EPNs progeny after infection despite a higher mortality compared to adults. Considering the two EPN strains, S. carpocapsae was more virulent than H. bacteriophora both in terms of host mortality and more abundant progeny released by hosts after death. The outcomes attained with unspecific and specific pathogens provide useful information for a more efficient and sustainable management of this invasive pest.
A practical guide to sample preservation and pre‐PCR processing of aquatic environmental DNA
Authors: Kumar Girish , Eble Jeff E. , Gaither Michelle R. 
Published: October 2019

AbstractEnvironmental DNA (eDNA) is rapidly growing in popularity as a tool for community assessments and species detection. While eDNA approaches are now widely applied, there is not yet agreement on best practices for sample collection and processing. Investigators looking to integrate eDNA approaches into their research programme are required to examine a growing collection of disparate studies to make an often uncertain decision about which protocols best fit their needs. To promote the application of eDNA approaches and to encourage the generation of high‐quality data, here we review the most common techniques for the collection, preservation and extraction of metazoan eDNA from water samples. Specifically, we focus on experimental studies that compare various methods and outline the numerous challenges associated with eDNA. While the diverse applications of eDNA do not lend themselves to a one‐size‐fits‐all recommendation, in most cases, capture/concentration of eDNA on cellulose nitrate filters (with pore size determined by water turbidity), followed by storage of filters in Longmire's buffer and extraction with a DNeasy Blood & Tissue Kit (or similar) has been shown to provide sufficient, high‐quality DNA. However, we also emphasize the importance of testing and optimizing protocols for the system of interest.