bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of Standardized Stream-Dwelling Crayfish Sampling Methods at Site and Drainage Scales
Authors: Engelbert Bryan S. , Taylor Christopher A. , DiStefano Robert J. 
Published: February 2016

Abstract
Methods for assessing stream fish, freshwater mussel, and insect assemblage structure, presence, and status have existed for several decades. Such methods are lacking for assessing crayfish. The current study addresses that deficiency by testing robust sampling methods to assess species richness, distribution, and density at both site and drainage scales. We tested the ability of timed search methods to capture all known species of crayfish at a site and of a kick seine to assess the mean density of crayfish (per m2) in riffles. Riparian crayfish burrows were excavated to capture additional species not captured with the other methods. Our data and methods allow for assessments of the inherent trade-off between sampling time and resources and statistical confidence. An example sampling regime of 3.5 h of effort per site required seven 15-min timed search samples and captured at least 80% of the crayfish species richness, with 85% confidence across all sites tested. Twelve kick-seine samples yielded crayfish density estimates within 50% of an estimated true density at 70% confidence for all species with densities &gt;0.5/m2. In the drainage-scale component, we employed a sampling effort prescription derived from our site-scale data across seven drainages in Missouri. To achieve 100% of the species richness sampled at 97.5% confidence in wadeable second- to fourth-order streams, researchers will need to sample one site for every 18 river kilometers of second- to fourth-order streams occurring in a drainage. We believe our methods can provide a repeatable and statistically supported tool for researchers assessing crayfish assemblages in wadeable streams across the Midwest.
Received March 9, 2015; accepted October 14, 2015
Modeling Effects of Length Limit Regulations on Riverine Populations of Channel Catfish
Authors: Eder Brandon L. , Pegg Mark A. , Mestl Gerald E. 
Published: February 2016

Abstract
Channel Catfish Ictalurus punctatus is an important species among anglers in North America. Channel Catfish management strategies vary greatly in the United States and Canada, and there are few examples of regulations aimed at improving size structure in the literature. The goal of this study was to model the response of Channel Catfish to changes in regulations that meet specific management objectives. We modeled a suite of regulations to determine if minimum length limits or a protected slot limit could be used to improve size structure or avoid growth overfishing of Channel Catfish in a large river. We modeled three minimum length limits (304, 356, and 406 mm) and a 356–456-mm protected slot limit to assess the effectiveness of each at delaying or eliminating growth overfishing and increasing the number of quality-sized fish in the Missouri River, Nebraska. Our models indicated a 406-mm minimum length limit could be used to avoid growth overfishing until exploitation rates were greater than 45% and that both minimum length limits and slot limits could be used to increase the number of quality-sized fish by up to 4 times the number under current regulations.
Received April 6, 2015; accepted October 27, 2015
Mycoplasma hominis infection following neurosurgical intervention in a patient with spinal cord compression
Authors: Parsonson Fiona 
Published: February 2016

Introduction:

Mycoplasma hominis is a rare but recognized cause of post-operative wound infection. There are very few cases reported in the literature of M. hominis infection following neurosurgery.

Case presentation:
A 30-year-old woman with a history of chronic low back pain and symptoms consistent with sciatica underwent a microdiscectomy and anterior lumbar inter-body fusion for cord compression. Following surgery she developed an abscess overlying the lumbar surgical wound. Initial microbiological samples were negative on routine culture and the abscess recurred following surgical washout. Culture of a second specimen taken 1 month following the initial surgery revealed small colourless colonies that were not able to be seen on Gram stain. Molecular testing with 16S rRNA gene analysis confirmed M. hominis infection and the patient was treated with long-term oral moxifloxacin.

Conclusion:
Infection with M. hominis should be considered in culture-negative cases of post-operative wound infection where routine antibiotics fail. Diagnosis of Mycoplasma can be delayed due to the fastidious nature of the organism and may require molecular techniques. Initiation of appropriate antimicrobial treatment is often associated with a good clinical outcome.
Enteroccocus pallens as a potential novel human pathogen: three cases of spontaneous bacterial peritonitis
Authors: Lévesque Simon , Longtin Yves , Domingo Marc-Christian , Massé Cynthia , Bernatchez Harold , Gaudreau Christiane , Tremblay Cécile 
Published: February 2016

Introduction:

Enterococcus pallens is one of the four yellow-pigmented members of the genus Enterococcus. To date, a single report of E. pallens isolated from a human sample has been published.

Case presentation:
We report three cases of E. pallens spontaneous bacterial peritonitis in patients with liver cirrhosis that all occurred in Quebec, Canada. Ascitic fluid analysis revealed the presence of E. pallens in culture. Identification was made by classical biochemical testing and MALDI-TOF MS, as well as 16S rRNA and elongation factor (tuf) gene sequencing. Two of the three patients recovered after antimicrobial treatment.

Conclusion:
This report identifies E. pallens as a novel human pathogen that appears to possess particular but as-yet unidentified virulence factors that favour the development of peritoneal fluid infections, as previously reported for other Enterococcus species. Clinical microbiologist should be aware of this micro-organism which can be identified by phenotypic and molecular methods.
msVolcano: a flexible web application for visualizing quantitative proteomics data
Authors: Singh Sukhdeep , Hein Marco Y. , Stewart A. Francis 
Published: February 2016

AbstractWe introduce msVolcano, a web application, for the visualization of label-free mass spectrometric data. It is optimized for the output of the MaxQuant data analysis pipeline of interactomics experiments and generates volcano plots with lists of interacting proteins. The user can optimize the cutoff values to find meaningful significant interactors for the tagged protein of interest. Optionally, stoichiometries of interacting proteins can be calculated. Several customization options are provided to the user for flexibility and publication-quality outputs can also be downloaded (tabular and graphical).Availability: msVolcano is implemented in R Statistical language using Shiny and is hosted at server in-house. It can be accessed freely from anywhere athttp://projects.biotec.tudresden.de/msVolcano/
Social responsibility, professional commitment and tax fraud
Authors: Shafer William E. , Simmons Richard S. , Yip Rita W. Y. 
Published: February 2016

Purpose– The purpose of this paper is to document relationships between accountants’ socioeconomic beliefs and attitudes and their professional commitment and ethical decisions in a domain-specific context. Specifically, it investigates the relationships among Chinese tax accountants’ level of belief in the importance of corporate ethics and social responsibility, affective/normative professional commitment and ethical judgements/intentions in a case involving client pressure to commit tax fraud.Design/methodology/approach– The study employs a survey of tax practitioners employed by public accounting firms in China. The data are analyzed using linear regression and structural equation modelling.Findings– The stakeholder view, representing both normative and practical support for the importance of corporate ethics and social responsibility, was strongly and positively associated with professional commitment among tax practitioners. The stakeholder view also exhibited a strong negative association with intentions to engage in tax fraud. Tax accountants who possessed higher levels of professional commitment judged tax fraud as more unethical, and such ethical judgements were associated with a lower likelihood of intending to engage in fraud.Originality/value– The associations between: first, professional accountants’ beliefs in the importance of corporate ethics and social responsibility and their level of professional commitment; and second, professional commitment and tax professionals’ ethical judgements have received little attention in the prior literature. The findings of this study suggest that the integrity of public accounting services may be influenced by relatively broad socioeconomic attitudes, and that this effect may operate partially through commitment to professional values.
Accountability processes in boardrooms
Authors: Brennan Niamh M. , Kirwan Collette E. , Redmond John 
Published: February 2016

Purpose– The purpose of this paper is to understand the influence of information and knowledge exchange and sharing between managers and non-executive directors is important in assessing the dynamic processes of accountability in boardrooms. By analysing information/knowledge at multiple levels, invoking the literature on implicit/tacit and explicit information/knowledge, the authors show that information asymmetry is a necessary condition for effective boards. The authors introduce a conceptual model of manager-non-executive director information asymmetry as an outcome of the interpretation of information/knowledge-sharing processes amongst board members. The model provides a more nuanced agenda of the management-board information asymmetry problem to enable a better understanding of the role of different types of information in practice.Design/methodology/approach– The analysis of information/knowledge exchange, sharing and creation and the resultant conceptual model are based on the following elements: manager-non-executive director information/knowledge, management-board information/knowledge and board dynamics and reciprocal processes converting implicit/tacit into explicit information/knowledge.Findings– The paper provides new insights into the dynamics of information/knowledge exchange, sharing and creation between managers and non-executive directors (individual level)/between management and boards (group level). The authors characterise this as a two-way process, back-and-forth between managers/executive directors and non-executive directors. The importance of relative/experienced “ignorance” of non-executive directors is revealed, which the authors term the “information asymmetry paradox”.Research limitations/implications– The authors set out key opportunities for developing a research agenda from the model based on prior research of knowledge conversion processes and how these may be applied in a boardroom setting.Practical implications– The model may assist directors in better understanding their roles and the division of labour between managers and non-executive directors from an information/knowledge perspective.Originality/value– The authors apply Ikujiro Nonaka’s knowledge conversion framework to consider the transitioning from individual implicit personal to explicit shared information/knowledge, to understand the subtle processes at play in boardrooms influencing information/knowledge exchange, sharing and creation between managers and non-executive directors.
Disciplinary practices in the French auditing profession
Authors: Lesage Cédric , Hottegindre Geraldine , Baker Charles Richard 
Published: February 2016

Purpose– The purpose of this paper is to contribute to understand the role of the statutory auditing profession in France. The study is theoretically based on distinctions between a functionalist view of professions and a neo-weberian view. Prior research, conducted in Anglo-American countries has shown that the auditing profession has focussed primarily on protecting the private interests of the profession. Hence, there is a need to conduct research on this topic in a code law country where the state is expected to play a significant role in protecting the public interest.Design/methodology/approach– The methodology involves a content analysis of 148 disciplinary decisions issued against statutory auditors in France from 1989 to 2006. This analysis identified 21 types of violations grouped into public interest or private interest offences. Because visible offences are public and are more likely to threaten the reputation of the profession, these types of decisions are also studied with respect to their visibility.Findings– The results reveal that in a code law country such as France the auditing profession tends to defend both the public interest as well as its private interests. The results also support the “visibility” effect.Research limitations/implications– The written disciplinary decisions have been anonymized so that the names of the auditors and the clients cannot be identified.Originality/value– This paper differs from previous studies conducted in the Anglo-American context which show an emphasis on protecting the private interests of the auditing profession. Moreover, this study reveals the existence of “mixed” offences and underlines that a profession primarily focusses on these cases. Thus, the work reconciles in part the functionalist and neo-weberian perspectives. Lastly, this paper confirms the importance of the visibility effect.
On the moving average buy-sell trading rule
Authors: Ren Louie , Ren Peter 
Published: February 2016

Purpose
– The purpose of this paper is to look at the power of the Student t-test applied to two independent samples when returns from AR(1) process are categorized into two samples by moving average buy-sell trading rule.

Design/methodology/approach
– Simulation and empirical study for returns from NASDAQ via bootstrapping resampling method are conducted.

Findings
– The authors conclude that applying the MA Trading Rule followed by Student t-test is not appropriate for analyzing market efficiency.

Originality/value
– Moving average buy-sell trading rule is widely used in finance to test if the market is efficient. In this paper, it is one of the first kind of research to examine the power of the test via simulation and empirical study.
Determinants of acquirer-target distance in M & A
Authors: Kim Tae-Nyun , Chun Bumseok 
Published: February 2016

Purpose– The purpose of this paper is to propose several potential determinants of the distance between acquirer and target in M & A deals and examine the negative impact of the acquirer-target distance on announcement returns of acquiring firms.Design/methodology/approach– By employing two-stage regression model, the authors control for the potential endogeneity of acquirer-target distance. The authors use excess distance instead of raw distance between acquirer and target to look at the impact of acquirer-target distance on announcement returns.Findings– The authors find that acquirer-target distance in M & A tends to be longer when major hub airports are located closer to acquiring and target firms, target firm is located in a region with higher level of unemployment rate and median household income, and target firm is smaller and has more cash holdings. When controlling for the potential determinants of acquirer-target distance, including the level of targets information asymmetry, the authors still find that the excess distance between acquirer and target has a negative impact on announcement returns of acquiring firms.Originality/value– This study provides three main contributions to the literature. First, the authors find that acquirer-target distance in M & A is not exogenous and determined by several firm characteristics and regional economic factors. Second, the authors show that the acquirer-target distance has a negative impact on announcement returns even when controlling for the potential determinants. Third, by including information asymmetry measures as potential determinants of acquirer-target distance, the authors show that information advantage of local bidders may not be the most critical factor for their higher returns compared to the bidders from remote areas.
Forecasting time-varying daily betas: a new nonlinear approach
Authors: Messis Petros , Zapranis Achilleas 
Published: February 2016

Purpose– The purpose of this paper is to examine the predictive ability of different well-known models for capturing time variation in betas against a novel approach where the beta coefficient is treated as a function of market return.Design/methodology/approach– Different GARCH models, the Kalman filter algorithm and the Schwert and Seguin model are used against our novel approach. The mean square error, the mean absolute error and the Diebold and Mariano test statistic constitute the measures of forecast accuracy. All models are tested over nine consecutive years and three different samples.Findings– The results show substantial differences in predictive accuracy among the samples. The new approach of modelling the systematic risk overwhelms the rest of the models in longer samples. In the smallest sample, the Kalman filter random walk model prevails. The examination of parameters between two groups of stocks with best and worst accuracy results depicts significant variations. For these stocks, the iid assumption of return is rejected and large differences exist on diagnostic tests.Originality/value– This study contributes to the literature with different ways. First, it examines the predictive accuracy of betas with different well-known models and introduces a novel approach. Second, after constructing betas from the estimated models’ parameters, they are used for out-of-sample instead of in-sample forecasts over nine consecutive years and three different samples. Third, a more closely examination of the models’ parameters could signal at an early stage the candidate models with the expected lowest forecasting errors. Finally, the study carries out some diagnostic tests for examining whether the existence of iid normal returns is accompanied by better performance.
A massively flipped class
Authors: Rodriguez Julia E. 
Published: February 2016

Purpose
– The purpose of this paper is to describe and analyze how one-shot library instruction sessions for large lecture classes can effectively be “flipped”, and can incorporate active learning activities as part of both online and face-to-face classroom.

Design/methodology/approach
– This case study discusses the challenges of using flipped classroom methods with large enrollment courses and investigates the use of technology to facilitate the active learning components. Situated in flipped classroom pedagogy literature for both information literacy instruction and large lecture classes, the paper synthesizes practical information through the analysis of design and implementation.

Findings
– Lecture classes present unique challenges for utilizing flipped classroom methods, but the obstacles can be overcome with a bit of preparation and faculty buy-in, balanced with the proper utilization of technology.

Originality/value
– The paper offers other librarians practical design and implementation information for using flipped classroom methods, specifically for classes with large enrollments, filling a gap in the library literature that presently lacks examples of flipped classroom pedagogy being utilized for information literacy (IL) instruction with lecture classes.
Citation apps for mobile devices
Authors: Van Ullen Mary K. , Kessler Jane 
Published: February 2016

Purpose
– The purpose of this paper is to evaluate the accuracy and functionality of a selection of basic Android and iOS apps for mobile devices designed to generate bibliographic citations.

Design/methodology/approach
– A number of inexpensive or free apps were installed on several different tablets and phones. Book citations in MLA and APA format were generated and evaluated for accuracy.

Findings
– Results show that the majority of the apps tested produced unacceptably inaccurate citations, and many had limited functionality. The best of the apps tested was EasyBib.

Research limitations/implications
– There are infinite combinations of operating systems, apps, citation styles, material types and devices. Testing for this study was limited to uncomplicated apps likely to appeal to undergraduate students. It did not include more sophisticated apps for managing reference libraries. The study investigated how well several Android and iOS apps installed on mobile devices functioned to generate MLA and APA citations for print books.

Practical/implications
– As the role of mobile technology in education continues to grow, librarians need to remain aware of solutions that can help students manage their research. Librarians have an opportunity to provide feedback to developers by reviewing and rating apps.

Originality/value
– Undergraduate students face challenges in learning to appropriately acknowledge materials they have consulted in their research and writing. Librarians can play an important role in helping students select the most appropriate tools to make citing sources easier and more accurate.
Managing for resilience: an information theory‐based approach to assessing ecosystems
Authors: Eason Tarsha , Garmestani Ahjond S. , Stow Craig A. , Rojo Carmen , Alvarez‐Cobelas Miguel , Cabezas Heriberto 
Published: February 2016

Summary

Ecosystems are complex and multivariate; hence, methods to assess the dynamics of ecosystems should have the capacity to evaluate multiple indicators simultaneously.

Most research on identifying leading indicators of regime shifts has focused on univariate methods and simple models which have limited utility when evaluating real ecosystems, particularly because drivers are often unknown.

We discuss some common univariate and multivariate approaches for detecting critical transitions in ecosystems and demonstrate their capabilities via case studies.

Synthesis and applications. We illustrate the utility of an information theory‐based index for assessing ecosystem dynamics. Trends in this index also provide a sentinel of both abrupt and gradual transitions in ecosystems.