bluuebunny/crossref_metadata_2025_split huggingface dataset:
Market reactions to corporate name changes: evidence from the Toronto Stock Exchange
Authors: Biktimirov Ernest N. , Durrani Farooq 
Published: January 2017

Purpose
The purpose of this paper is to examine stock price and trading volume reactions to name changes of the Toronto Stock Exchange listed companies. Previous studies present conflicting evidence on reactions to corporate name changes in US and other capital markets.

Design/methodology/approach
This study uses the event study methodology to calculate abnormal returns and trading volume around the announcement, approval, and effective dates of corporate name changes. It also contrasts abnormal returns between major and minor name changes, signaling focused and diversified strategies, accompanied with a ticker symbol change and without a ticker change, structural and pure name changes, as well as brand adoption and radical name changes.

Findings
Companies tend to experience a significant run-up in stock price in the period preceding the announcement of a name change. The stocks also show a significant positive abnormal return around the effective date. In addition, corporate name changes are associated with significant increases in trading volume for several days starting from the approval date. Most importantly, the type of a name change matters, as reflected in significance levels of abnormal return and trading volume reactions to various types of corporate name changes.

Research limitations/implications
The limitation of this study comes from the difficulty to precisely identify the date when the market learns about a possible corporate name change.

Originality/value
This study is the first to examine market reactions to name changes of Toronto Stock Exchange listed companies. Most importantly, whereas previous studies focus on the announcement day, this paper also considers the approval and effective days. It also contrasts responses between name changes accompanied with a new ticker and name changes without a ticker change.
Internet gambling stock returns: empirical evidence from the UK
Authors: Perez Liston Daniel 
Published: January 2017

PurposeThe purpose of this paper is to quantify beta for an online gambling portfolio in the UK and investigates whether it is time-varying. It also examines the dynamic correlations of the online gambling portfolio with both the market and socially responsible portfolios. In addition, this paper documents the effect of important UK gambling legislation on the betas and correlations of the online gambling portfolio.Design/methodology/approachThis study uses static and time-varying models (e.g. rolling regressions, multivariate GARCH models) to estimate betas and correlations for a portfolio of UK online gambling stocks.FindingsThis study finds that beta for the online gambling portfolio is less than 1, indicative of defensiveness toward the market, a result that is consistent with prior literature for sin stocks. In addition, the conditional correlation between the market and online gambling portfolio is small when compared to the correlation of the market and socially responsible portfolios. Findings suggest that the adoption of the Gambling Act 2005 increases the conditional correlation between the market and online gambling portfolio and it also increases the conditional betas for the online gambling portfolio.Research limitations/implicationsThis paper serves as a starting point for future research on online gambling stocks. Going forward, studies can focus on the financial performance or accounting performance of online gambling stocks.Originality/valueThis empirical investigation provides insight into the risk characteristics of publicly listed online gambling companies in the UK.
Revisiting the price-volume relationship: a cross-currency evidence
Authors: Kumar Satish 
Published: January 2017

Purpose
The purpose of this paper is to examine the contemporaneous and causal relationship between returns (volatility) and trading volume in the Indian currency futures market for selected currency pairs; USD-INR, EUR-INR, GBP-INR and JPY-INR, from August 2008 to December 2014.

Design/methodology/approach
The data for all the currency futures series has been taken from National Stock Exchange of India Limited which represents the daily settlement prices along with trading volume. The contemporaneous returns-volume relation is tested using the generalized method of moments, and Granger-causality framework impulse response function is used to test the predictive ability of returns (volatility) and volume for each other.

Findings
The author reports a positive contemporaneous relationship between futures returns and trading volume which persists even after controlling for heteroskedasticity providing support to mixture of distribution hypothesis. The results show a unidirectional Granger causality from futures returns to volume. However, there is a significant bidirectional Granger causality between returns volatility and volume lending support to sequential arrival of information hypothesis. Next, the results for cross-currencies show significant influence of US dollar on the volume and returns of all other currencies. Overall, the author suggests that the short- to medium-term movements in the currency markets are dominated by market microstructure and not by fundamentals.

Practical implications
The findings of this paper are very important for the participants in the market and regulators. The participants in the market require alternatives to diversify their risk. The significant relationship between futures returns (volatility) and trading volume implies that the current trading volume help predict the futures prices and should lead to creation of more reliable hedging strategies for investment purposes. Further, it may interest the regulators who need to decide upon the appropriateness of their policies in the currency futures market. Based on returns-volume relation, they need to set forth market restrictions such as daily price movement and position limits.

Originality/value
To the best of the knowledge, no study has yet investigated the forecast ability of trading volume to price changes and their volatility in the Indian currency futures market. Given that currency futures market is one of the largest markets in the world, and Indian rupee has seen wide fluctuations in the recent years, it seems exciting to explore the price-volume relationship in the Indian currency futures market.
Comparison of CBV, BEAM and BEAC high‐dose chemotherapy followed by autologous hematopoietic stem cell transplantation in non‐Hodgkin lymphoma: Efficacy and toxicity
Authors: Shi Youwu , Liu Peng , Zhou Shengyu , Yang Jianliang , Han Xiaohong , He Xiaohui , Zhang Changgong , Gui Lin , Qin Yan , Yang Sheng , Zhao Liya , Yao Jiarui , Jia Bo , Zhang Shuxiang , Sun Yan , Shi Yuankai 
Published: January 2017

AbstractAimLimited data are available to guide the choice of conditioning regimen before autologous hematopoietic stem cell transplantation (AHSCT) for patients with lymphoma.MethodsWe analyzed 129 non‐Hodgkin lymphoma patients who underwent AHSCT from 1996 to 2013 using the most common regimens: CBV (cyclophosphamide, carmustine and etoposide; n = 16), BEAM (carmustine, etoposide, cytarabine and melphalan; n = 36) and BEAC (carmustine, etoposide, cytarabine and cyclophosphamide; n = 77).ResultsAt a median follow‐up of 42.5 months, the estimated 5‐year overall survival for the CBV, BEAM and BEAC groups was 68.8%, 77.8% and 81.8%, respectively (P = 0.584). The estimated 5‐year progression‐free survival in the CBV group (43.8%) was relatively inferior to the BEAM (66.7%) and BEAC (67.5%) groups, but the differences were not significant (P = 0.403). Grade 2 or higher mucositis, diarrhea and fever were relatively more common in the BEAM group (P < 0.05). No differences were observed in the time to hematopoietic recovery and the duration of hospitalization. The amount of transfused platelet was significantly less in the CBV.ConclusionCBV, BEAM and BEAC regimens are all optional high‐dose chemotherapy before AHSCT for NHL patients.
Social Media Data Can Be Used to Understand Tourists’ Preferences for Nature‐Based Experiences in Protected Areas
Authors: Hausmann Anna , Toivonen Tuuli , Slotow Rob , Tenkanen Henrikki , Moilanen Atte , Heikinheimo Vuokko , Di Minin Enrico 
Published: January 2017

AbstractCan social media data be used as an alternative to traditional surveys to understand tourists’ preferences for nature‐based experiences in protected areas? We explored this by comparing preferences for biodiversity obtained from a traditional survey conducted in Kruger National Park, South Africa, with observed preferences assessed from over 13,600 pictures shared on Instagram and Flickr by tourists visiting the park in the same period. We found no significant difference between the preferences of tourists as stated in the surveys and the preferences revealed by social media content. Overall, large‐bodied mammals were found to be the favorite group, both in the survey and on social media platforms. However, Flickr was found to better match tourists’ preference for less‐charismatic biodiversity. Our findings suggest that social media content can be used as a cost‐efficient way to explore, and for more continuous monitoring of, preferences for biodiversity and human activities in protected areas.
Aphid density and community composition differentially affect apterous aphid movement and plant virus transmission
Authors: CLAFLIN SUZI B. , POWER ALISON G. , THALER JENNIFER S. 
Published: January 2017

1. Although many vector‐borne pathogens are transmitted by an array of vector species, most studies do not account for the potential effects of species interactions.2. By manipulating conspecific and heterospecific vector density in small experimental mesocosms, this study disentangled the impact of vector density and community composition on vector movement and plant virus transmission in the potato virus Y system.3. The following predictions were tested: (i) increasing aphid density will increase aphid movement and virus transmission; (ii) adding low‐efficiency vectors and thereby decreasing the average transmission efficiency of the vector assemblage will decrease virus transmission; and (iii) aphid movement and the average vector transmission efficiency will mediate the effect of aphid density and community composition on virus transmission.4. It was found that initial density positively affected aphid movement, but had no effect on virus transmission, and that conspecific density was more important than heterospecific density. Conversely, community composition affected both aphid movement and virus transmission. These effects were driven by species identity, rather than species richness per se.5. The results of this study emphasise the importance of accounting for vector behaviour, and analysing it within the context of the wider vector assemblage.
Increase in soil organic carbon in a Mollisol following simulated initial development from parent material
Authors: You M. , Li N. , Zou W. , Han X. , Burger M. 
Published: January 2017

Better understanding of the effects of land use and agricultural management on organic carbon (C) sequestration is needed to optimize the restoration of fertility in degraded soil, maintain agricultural sustainability and mitigate emissions of greenhouse gases with C sequestration. Most current studies of C sequestration focus on mature soil, whereas there has been little research on soil development from C‐poor parent material. The aim of this study was to assess soil organic carbon (SOC) stocks and C sequestration rates during the early stages of development of a Mollisol from parent material under different types of vegetation, fertilizer application regimes and organic matter inputs, and to compare the results with C sequestration of a mature Mollisol under similar management. Carbon stocks were recorded from 2004 to 2012 in the parent material of a Mollisol under natural fallow (NatF), alfalfa (Medicago sativa L.) (Alfa) or soya beans (Glycine max (Merrill.) L.) and maize (Zea mays L.) (S–M) rotations with and without fertilizer application and crop residues returned or removed at harvest. There was a positive non‐linear relation between C inputs and SOC stocks; increases in SOC stocks decreased with larger additions of C. After 8 years of treatments, the SOC stocks at 0–20‐cm depth had increased in the order S–M + fertilizer + all residues returned (61%) > Alfa (60%) > S–M + fertilizer + part of residues returned (50%) > NatF (30%) > S–M + fertilizer without residue return (17%) > S–M without fertilizer or residue return (7%). These increases in SOC stocks corresponded to annual C sequestration rates of 0.02–0.83 Mg C ha−1 year−1. In contrast, SOC stocks in the 0–20‐cm layer of the mature Mollisol changed little under similar treatments in a wheat (Triticum aestivum L.)–maize–soya bean rotation. Our results have practical implications for how vegetation and agricultural practices could be used to optimize soil restoration and C sequestration in a temperate continental monsoon climate.Highlights
What management practices and vegetation lead to carbon sequestration during soil development?
Use of a subsoil (parent material) to study soil development.
Carbon stocks increased as much in alfalfa as in soya bean–maize rotations with residue return.
Perennial legume systems sequester carbon comparable to annual systems with larger carbon inputs.
Multiple Plumage Ornaments as Signals of Intrasexual Communication in Golden‐Winged Warblers
Authors: Jones John Anthony , Tisdale Anna C. , Bakermans Marja H. , Larkin Jeffery L. , Smalling Curtis G. , Siefferman Lynn 
Published: January 2017

AbstractAvian plumage represents some of the greatest diversity in integument coloration of all animals. Plumage signals are diverse in function, including those that allow for assessing potential mates or the mitigation of agonistic interactions between rivals. Many bird species possess multiple ornamental traits that have the potential to serve as multiple or redundant signals. For example, male golden‐winged warblers (Vermivora chrysoptera) have brilliant carotenoid‐based yellow crowns, melanin‐based black throats, and structurally based white patches on their outer tail feathers. Using a correlative approach, we investigated whether plumage ornaments have the potential to reliably signal ability to acquire higher quality territory, aggressive response to simulated territorial intrusions, and reproductive success. We found that both crown chroma and tail brightness were significantly related to habitat quality and aggression; more ornamented birds held territories with higher quality habitat and were less aggressive toward simulated conspecific stimuli. Older birds sang less threatening songs than younger birds and were more likely to sing their mate attraction song type (type 1) rather than songs typically reserved for agonistic interactions (type 2). Finally, despite our previous research demonstrating that habitat strongly predicts reproductive success in this warbler population, we found no evidence of a direct link between ornamentation and reproductive success. Overall, these data suggest that younger males, and those with lower quality ornaments, compensate with more aggressive behaviors. Additional research is needed to investigate the dynamics between behavioral traits and ornaments to better understand complex signaling and how golden wing signals function in conspecific interactions (male–male interactions and mate‐choice).
In Space and Time: Territorial Animals are Attracted to Conspecific Chemical Cues
Authors: Campos Stephanie M. , Strauss Chloe , Martins Emília P. 
Published: January 2017

AbstractTerritorial animals lay scent marks around their territories to broadcast their presence, but these olfactory signals can both attract and repel conspecifics. Attraction or aversion can have a profound impact in terms of space use and thereby influence an individual's access to resources and mates. Here, we test the impact of chemical signals on the long‐term space use and activity of receivers, comparing the response of males and females, territory holders, and temporary visitors in Sceloporus undulatus lizards in the field. We placed either male femoral gland secretions (chemical) or blank (control) cues on resident male landmarks, repeatedly over 5 d, while monitoring the activity and location of all lizards in the vicinity. We found that resident males and females, but not non‐resident males, were active on more days near landmarks treated with chemical cues than landmarks treated with control cues. Non‐resident males remained closer to chemical than control cues. These results suggest that territorial scent marks are attractive to conspecifics and impact space use, but that the specific effects depend on receiver sex and residency status. Such subtle or gradual changes in behavior may frequently be overlooked by short‐term choice experiments. Future studies investigating the behavioral significance of a communicative signal should consider these finer details of behavior for a more comprehensive assessment.
Adult Male Density Influences Juvenile Microhabitat Use in a Territorial Lizard
Authors: Delaney David M. , Warner Daniel A. 
Published: January 2017

AbstractHabitat choice often has strong effects on performance and fitness. For many animals, optimal habitats differ across age or size classes, and individuals shift habitat use through ontogeny. Although many studies document ontogenetic habitat shifts for various taxa, most are observational and do not identify the causal factor of size‐specific habitat variation. Field observations of the brown anole lizard (Anolis sagrei) show that juveniles perch on shorter and thinner vegetation than adults. We hypothesized that this variation is due to adult males forcing smaller juveniles to less preferred habitat. To test this assertion, we manipulated adult male densities in mesh enclosures with artificial trees to examine the response of juvenile microhabitat choice. We found that adult male density had strong effects on juvenile perch height, perch width, and substrate use, suggesting that age‐class competition contributes to the observed ontogenetic differences in habitat choice. We also found that time of day significantly affected juvenile perch height and substrate use. In many cases, our results suggest that juveniles distance themselves from adults using different microhabitats from those used in our control ‘no‐adult’ treatment. However, these findings were often body size dependent and varied depending upon time of day. This study highlights the complexity of juvenile perching behavior and demonstrates the role of intraspecific interactions in shaping habitat use by juvenile animals.
Further analysis of high‐voltage ZnO varistor prepared from novel chemically aided method
Authors: Cheng Lihong , Zheng Liaoying , Zeng Jiangtao , Zhao Kunyu , Shi Xue , Ruan Xuezheng , Li Guorong , Yang Jia , Liu Yi 
Published: January 2017

AbstractBased on previous work, this study further investigated the high‐voltage varistor materials prepared from chemically aided method. Microstructural characterization and electrical measurement results showed that the sample possessed more homogeneous microstructure and ultrahigh drop voltage per grain boundary (Vgb) than the conventional sample. The obtained ultrahigh value of Vgb is connected with the much lower donor concentration (Nd) and density of interface states (NIS) of the samples, which resulted from the increased number of active grain boundaries per unit volume. The improved homogeneous microstructure, together with the smaller grain size and narrower size distribution are essential to obtain high‐voltage ZnO varistor.
Annual Research Review: Understudied populations within the autism spectrum – current trends and future directions in neuroimaging research
Authors: Jack Allison , A. Pelphrey Kevin 
Published: January 2017

BackgroundAutism spectrum disorders (ASDs) are a heterogeneous group of neurodevelopmental conditions that vary in both etiology and phenotypic expression. Expressions of ASD characterized by a more severe phenotype, including autism with intellectual disability (ASD + ID), autism with a history of developmental regression (ASD + R), and minimally verbal autism (ASD + MV) are understudied generally, and especially in the domain of neuroimaging. However, neuroimaging methods are a potentially powerful tool for understanding the etiology of these ASD subtypes.Scope and methodologyThis review evaluates existing neuroimaging research on ASD + MV, ASD + ID, and ASD + R, identified by a search of the literature using the PubMed database, and discusses methodological, theoretical, and practical considerations for future research involving neuroimaging assessment of these populations.FindingsThere is a paucity of neuroimaging research on ASD + ID, ASD + MV, and ASD + R, and what findings do exist are often contradictory, or so sparse as to be ungeneralizable. We suggest that while greater sample sizes and more studies are necessary, more important would be a paradigm shift toward multimodal (e.g. imaging genetics) approaches that allow for the characterization of heterogeneity within etiologically diverse samples.
Internet‐based learning programme to increase nurses’ knowledge level about venous leg ulcer care in home health care
Authors: Ylönen Minna , Viljamaa Jaakko , Isoaho Hannu , Junttila Kristiina , Leino‐Kilpi Helena , Suhonen Riitta 
Published: January 2017

Aims and objectivesTo test the effectiveness of an Internet‐based education programme about venous leg ulcer nursing care on perceived and theoretical knowledge levels and attitudes among nurses working in home health care.BackgroundNurses have been shown to have knowledge gaps in venous leg ulcer nursing care. Internet‐based learning could offer a means for flexible continuing education for home healthcare environment.DesignQuasi‐experimental study with pre‐ and postmeasurements and nonequivalent intervention and comparison groups.MethodNurses (n = 946) in home health care in two Finnish municipalities were invited to participate in the study and divided into intervention and comparison groups. The intervention group received education programme about venous leg ulcer nursing care, while the comparison group did not. Data were collected at baseline, at six weeks and at 10 weeks to test the hypotheses: nurses using education programme about venous leg ulcer nursing care will have higher level of knowledge and more positive attitudes than those not using education programme about venous leg ulcer nursing care. An analysis of variance and mixed models with repeated measures were used to test differences in knowledge and attitudes between and within the groups.ResultsThere were statistically significant increases in knowledge levels in the intervention group from baseline to the first and second follow‐up measurements. In the comparison group, the knowledge levels remained unchanged during the study. Attitude levels remained unchanged in both groups.ConclusionNurses’ perceived and theoretical knowledge levels of venous leg ulcer nursing care can be increased with Internet‐based education. However, this increase in knowledge levels is short‐lived, which emphasises the need for continuous education.Relevance to clinical practiceInternet‐based education about venous leg ulcer nursing care is recommended for home healthcare nurses. Education programme about venous leg ulcer nursing care provides flexible method for nurses’ learning with feasible and cost‐effective access to evidence‐based education. Education programme about venous leg ulcer nursing care material can be used in all nursing environments where Internet is available.