bluuebunny/crossref_metadata_2025_split huggingface dataset:
Algorithm of real estate mass appraisal with inequality restricted least squares (IRLS) estimation
Authors: Doszyń Mariusz 
Published: May 2020

PurposeThe purpose of this paper is to present an algorithm of real estate mass appraisal in which the impact of attributes (real estate features) is estimated by inequality restricted least squares (IRLS) model.Design/methodology/approachThis paper presents the algorithm of real estate mass appraisal, which was also presented in the form of an econometric model. Vital problem related to econometric models of mass appraisal is multicollinearity. In this paper,a prioriknowledge about parameters is used by imposing restrictions in the form of inequalities. IRLS model is therefore used to limit negative consequences of multicollinearity. In ordinary least squares (OLS) models, estimator variances might be inflated by multicollinearity, which could lead to wrong signs of estimates. In IRLS models, estimators efficiency is higher (estimator variances are lower), which could result in better appraisals.FindingsThe final effect of the analysis is a vector of the impact of real estate attributes on their value in the mass appraisal algorithm. After making expert corrections, the algorithm was used to evaluate 318 properties from the test set. Valuation errors were also discussed.Originality/valueRestrictions in the form of inequalities were imposed on the parameters of the econometric model, ensuring the non-negativity and monotonicity of real estate attribute impact. In case of real estate, variables are usually correlated. OLS estimators are then inflated and inefficient. Imposing restrictions in form of inequalities could improve results because IRLS estimators are more efficient. In the case of results inconsistent with theoretical assumptions, the real estate mass appraisal algorithm enables having the obtained results adjusted by an expert. This can be important for low quality databases, which is often the case in underdeveloped real estate markets. Another reason for expert correction may be the low efficiency of a given real estate market.
Market frictions and the geographical location of global stock exchanges. Evidence from the S&P Global Index
Authors: Gregoriou Andros , Hudson Robert 
Published: May 2020

PurposeWe examine the impact of market frictions in the form of trading costs on investor average holding periods for stocks in the S&P global 1200 index to examine constraints on international portfolio diversification.Design/methodology/approachWe determine whether it is appropriate to pool stocks listed in the USA, Canada, Latin America, Europe, Japan, Asia and Australia into investigations using the same empirical specification. This is very important because the pooled effects may not provide consistent estimates of the average.FindingsWe report overwhelming econometric evidence that it is not valid to pool stocks in all the underlying regional equity indices for our investigation, indicating that the effect of frictions varies between markets.Research limitations/implicationsWhen we pool the stocks within markets, we discover that for companies listed in the USA, Europe, Canada and Australia, market frictions do not significantly influence holding periods and hence are not a barrier to portfolio rebalancing. However, companies listed in Latin America and Asia face market frictions, which are significant in terms of increasing holding periods.Practical implicationsWe ascertain that taking into account the properties of stock markets in different geographical locations is vital for understanding the limits on achieving international portfolio diversification.Originality/valueUnlike prior research, we overcome the problems caused by contemporaneous correlation, endogeneity and joint determination of investor average holding periods and trading costs by employing the Generalized Method of Moments (GMM) system panel estimator. This makes our empirical estimates robust and more reliable than the previous empirical research in this area.
Application of virtual reality in people with ASD from 1996 to 2019
Authors: Lorenzo Gonzalo , Lorenzo-Lledó Alejandro , Lledó Asunción , Pérez-Vázquez Elena 
Published: May 2020

PurposeDiversity is one of the main characteristics of modern societies. To be teachers and trainers, it is necessary to use all the tools to respond to students with diversified needs. Therefore, the main aim of this study is to review the scientific production in Web of Science (WOS) and SCOPUS of 1996-2019 on the application of Virtual reality in people with Autism Spectrum Disoders (ASD) for the improvement of social skills.Design/methodology/approachFor this purpose, two databases have been used: The Web of Science (WOS) and SCOPUS from the advanced search tab. After applying the search terms, 267 documents were obtained which were analysed according to a series of indicators.FindingsThe results indicate that the period 2016-2019 was the most productive and that SCOPUS has a focus on conferences and WOS is intended for journals. Furthermore, in SCOPUS, there are journals with higher quartiles (Q1) than in WOS. The study shows the great importance of virtual reality in people with ASD and its recent dissemination.Originality/valueCurrently, to the best of the authors’ knowledge, there are no studies on the use of virtual reality in people with ASD using bibliometric indicators. The study allows us to know which databases publish higher quality research. Likewise, information can be obtained about the most productive centres and the most important authors on the subject.
How can cross-functional integration support the development of resilience capabilities? The case of collaboration in the automotive industry
Authors: Poberschnigg Tayanne Ferraz da Silva , Pimenta Marcio Lopes , Hilletofth Per 
Published: May 2020

Purpose
The purpose of this study is to analyze cross-functional integration processes and their respective impacts on resilience capabilities, with particular emphasis on collaboration, in an automotive supply chain.

Design/methodology/approach
A case study was conducted in an automotive supply chain through 18 in-depth interviews with managers from six different companies, namely, two suppliers, one focal manufacturer and three customers. The automotive industry is one of the most vital industries in the Brazilian economy and is still recovering from the 2015 financial crisis, making it an interesting case for this research.

Findings
The findings reveal several links between resilience and cross-functional integration literatures through the analysis of three basic categories, namely, disruptions (lack of product, interruption of production, delivery delay, organizational bankruptcy and sales loss); capabilities (redundancy, flexibility, adaptability, collaboration, visibility and agility); and integration factors (cross-functional meetings, adequate communication, longevity of relationships, cross-functional training, recognition of interdependence and the consideration given to informal groups).

Practical implications
This research addresses several implications for practitioners. Managers should pay attention to the cross-functional teams, which may provide internal collaboration, and hence collaboration in the supply chain.

Originality/value
This paper suggests a new concept for the collaboration capability. According to the results, collaboration is the capability of dealing with formal and informal factors to integrate both the internal functions and supply chain members, which can provide visibility, agility and adaptability toward supply chain resilience.
Infection, antibiotic exposure and development of atopic dermatitis: A nationwide case–control study
Authors: Choi Chong Won , Yang Bo Ram , Suh Dong In , Kim Mi‐Sook , Ohn Jungyoon , Hong Jong Soo , Lee Joongyub , Kim Kyu Han 
Published: May 2020

AbstractPrevious studies suggest an association between atopic dermatitis (AD) and exposure to microorganisms and antibiotics. However, these studies have limitations, and the sole influence on the development of AD was elusive. We performed a nationwide population‐based case–control study in a Korean population to investigate the association between AD and early‐life infection or antibiotic exposure. A total of 244 805 children with AD from the 2 283 601 children born between January 2010 and December 2014 and an equal number of sex‐ and age‐matched healthy children were enrolled. A conditional logistic regression analysis showed that the episode of infection and antibiotic exposure were associated with an increased risk of AD (odds ratio [OR], 1.60; 95% confidence interval [CI], 1.58–1.63 for infection; and OR, 1.11; 95% CI, 1.09–1.13 for antibiotic exposure). A dose‐dependent relationship was observed between risk for AD, the number of infection episodes and antibiotic cycles and the duration of antibiotic exposure. On further analysis using a conditional logistic model, the risk of AD was less when the antibiotics were used during the infection episode than that without the use of antibiotics, especially if the duration of the infection was short. Although our study could not consider the effect of cause or severity of infection, class of antibiotics and genetic or environmental factors of enrolled subjects, our results suggested that infection and antibiotic exposure were associated with an increased risk of AD. In addition, the results also implied that the use of antibiotics during an infection episode can decrease the risk of AD induced by the infection and that appropriate management of infections can minimize the risk of AD induced by infection or antibiotics.
Velocity and event‐slope analysis using a model‐based common‐diffraction‐surface stack operator
Authors: Shahsavani Hashem , Heilmann Zeno 
Published: May 2020

ABSTRACTOver the last two decades, scientists have introduced many ways to improve normal moveout velocity analysis by optimizing the resolution of the moveout velocity spectrum, a graph that displays a coherence value for every tested velocity traveltime pair. Almost all of these methods have failed to enhance resolution when faced with low‐fold common‐midpoint gathers, which might be caused by natural barriers or man‐made obstacles. Another problem is that many approaches are derived from very simple model assumptions that quickly break down for complex structures and do not provide enough model flexibility for an iterative and interactive velocity analysis. In this paper, we present a new velocity analysis method based on the model‐based common‐diffraction‐surface stack operator and apply it to two synthetic data sets, one with locally sparse common‐midpoint coverage and one with a laterally variable complex geological structure. We generate velocity spectra by calculating the semblance along spatial operators obtained for all possible emergence angles and an entire range of velocity models. Comparing the resolution of such velocity spectra with those obtained with the classical normal moveout velocity analysis shows, in both two analysed cases, that the stacking velocity can be estimated much more precisely. The reasons for this are that the event dip is handled independently from the velocity and that the semblance is obtained, for each zero‐offset sample, over a group of neighbouring common‐midpoint gathers instead of just one.
Zooming in on mechanistic predator–prey ecology: Integrating camera traps with experimental methods to reveal the drivers of ecological interactions
Authors: Smith Justine A. , Suraci Justin P. , Hunter Jennifer S. , Gaynor Kaitlyn M. , Keller Carson B. , Palmer Meredith S. , Atkins Justine L. , Castañeda Irene , Cherry Michael J. , Garvey Patrick M. , Huebner Sarah E. , Morin Dana J. , Teckentrup Lisa , Weterings Martijn J. A. , Beaudrot Lydia 
Published: May 2020

Abstract

Camera trap technology has galvanized the study of predator–prey ecology in wild animal communities by expanding the scale and diversity of predator–prey interactions that can be analysed. While observational data from systematic camera arrays have informed inferences on the spatiotemporal outcomes of predator–prey interactions, the capacity for observational studies to identify mechanistic drivers of species interactions is limited.

Experimental study designs that utilize camera traps uniquely allow for testing hypothesized mechanisms that drive predator and prey behaviour, incorporating environmental realism not possible in the laboratory while benefiting from the distinct capacity of camera traps to generate large datasets from multiple species with minimal observer interference. However, such pairings of camera traps with experimental methods remain underutilized.

We review recent advances in the experimental application of camera traps to investigate fundamental mechanisms underlying predator–prey ecology and present a conceptual guide for designing experimental camera trap studies.

Only 9% of camera trap studies on predator–prey ecology in our review use experimental methods, but the application of experimental approaches is increasing. To illustrate the utility of camera trap‐based experiments using a case study, we propose a study design that integrates observational and experimental techniques to test a perennial question in predator–prey ecology: how prey balance foraging and safety, as formalized by the risk allocation hypothesis. We discuss applications of camera trap‐based experiments to evaluate the diversity of anthropogenic influences on wildlife communities globally. Finally, we review challenges to conducting experimental camera trap studies.

Experimental camera trap studies have already begun to play an important role in understanding the predator–prey ecology of free‐living animals, and such methods will become increasingly critical to quantifying drivers of community interactions in a rapidly changing world. We recommend increased application of experimental methods in the study of predator and prey responses to humans, synanthropic and invasive species, and other anthropogenic disturbances.
Addressing trait selection patterns in temporary ponds in response to wildfire disturbance and seasonal succession
Authors: Cunillera‐Montcusí David , Arim Matías , Gascón Stéphanie , Tornero Irene , Sala Jordi , Boix Dani , Borthagaray Ana Inés 
Published: May 2020

Abstract

Mediterranean ecosystems are increasingly threatened by disturbances such as wildfires. These disturbances are expected to shift the selective pressures that determine trait‐dependent community assembly. In addition, the stochasticity in species assembly may decrease because of the introduction of strong selection regimes or may increase because of random variation in recruitment. However, these changes in the selection profile and stochasticity in disturbed communities have seldom been evaluated.

We examined the relative roles of wildfire disturbance, local conditions and successional dynamics on the assembly of aquatic macroinvertebrate communities. We used the theory of community assembly by trait selection (CATS) to identify traits under selection and to estimate their dependence on wildfire disturbance and environmental gradients. We took advantage of a natural wildfire that partially burned a Mediterranean system of temporary ponds, which were surveyed before and after the wildfire, creating a natural before‐after‐control‐impact design.

Before the wildfire, the burned and unburned ponds did not show differences in the selected traits. After the wildfire event, species with larger body sizes and scrapers were favoured in the burned ponds, while collectors and active dispersers were underrepresented. Nonetheless, local environmental conditions and successional dynamics had greater relevance in the selection of traits than the wildfire. This suggests that assembly mechanisms were largely determined by seasonal successional changes regardless of wildfire disturbance. Finally, the relevance of the analysed traits diminished during the hydroperiod, suggesting more stochastic assemblages and/or a replacement in the set of selected traits.

Despite the prominent role of seasonal succession over wildfire, this disturbance was associated with a change in the selection strength over specific traits related with feeding strategies and species life histories. Both hydroperiod and wildfire highlighted a strong role of trait‐mediated processes (i.e. niche assembly). Therefore, the predicted increase in the frequency and intensity of wildfires is likely to result in community functional shifts. Furthermore, stochasticity was also important for community assembly, particularly from the middle towards the end of the hydroperiod. Our results evidenced the strong relevance of successional changes in trait‐mediated assembly mechanisms and its interplay with wildfire disturbance in temporary pond communities.
The use of Minecraft in the treatment of trauma for a child with Autism Spectrum Disorder
Authors: Gerhardt Lisa , Smith Jill 
Published: May 2020

Children with Autism Spectrum Disorder (ASD) are more likely to be the victims of child abuse and neglect than neurotypical children. This paper explores the impact of trauma on children and families, specifically children with ASD, and takes into consideration the overlapping symptoms of attachment disorders. Due to the social, behavioural, communication, and emotion regulation deficits commonly experienced by children with ASD and the overlap with disrupted attachment, treating trauma in ASD children poses its own unique challenges. At the same time, family support and involvement in the treatment of trauma for a child with ASD is crucial to the child’s recovery. This case study explores how the narrative component of TF‐CBT was adapted using a video game called Minecraft to provide a structure for an 11‐year‐old boy with ASD and a history of abuse and neglect to process his traumatic experiences in a narrative format, with his father as his support person. As a result, the client demonstrated improvements in depression symptoms and reduced perseveration about the trauma itself. The client’s father benefitted from this process as well, in that he reworked his own thinking about his and the client’s relationships with extended family members.Practitioner points

It is challenging to treat trauma in youth with Autism Spectrum Disorder due to deficits in cognition, behaviour, communication, and emotion regulation

Symptoms of attachment disorders overlap with symptoms of ASD, which also presents a challenge to treatment

It is important to consider family history and its impact on attachment when treating trauma symptoms in a child with ASD

This method allowed for a helpful and effective processing and narration of the child’s traumatic experiences, and changes in the father’s perspective of his son’s experiences
Do oil price changes really matter to the trade balance? Evidence from Korea‐ASEAN commodity trade data
Authors: Baek Jungho , Choi Yoon Jung 
Published: May 2020

AbstractThe contribution of this article is to assess the effect of oil prices have on the trade balance in the framework of bilateral commodity trade data between Korea and each of the four ASEAN member countries—Indonesia, Malaysia, Singapore, and Thailand. To examine this subject thoroughly, we first assume the effects of oil price changes to be symmetric and apply the linear autoregressive distributed lag (ARDL) method to the subject. We find that the price of crude oil indeed has an important role in affecting Korea's trade balance with those four ASEAN economies in both the long‐ and short‐run. We then separate oil price hikes from oil price plunges and implement the nonlinear ARDL method to reveal that there is evidence that changes in oil prices appear to have asymmetric effects on the trade balance for certain products in the long‐ and short‐run.
The Trade‐Off between Insurance and Incentives in Differentiated Unemployment Policies
Authors: Spinnewijn Johannes 
Published: May 2020

AbstractIn this paper, I revisit the central trade‐off between insurance and incentives in the design of unemployment insurance policies. The generosity of unemployment insurance benefits differs not only across countries, but also across workers within countries. After illustrating some important dimensions of heterogeneity in a cross‐country analysis, I extend the standard Baily–Chetty formula to identify the key empirical moments and elasticities required to evaluate the differentiated unemployment policy within a country. I also review some prior work and aim to provide guidance for future work trying to inform the design of unemployment policies.
Definitive lobectomy without frozen section analysis is a treatment option for large or deep nodules selected carefully with clinical diagnosis of malignancy
Authors: Mori Shohei , Noda Yuki , Shibazaki Takamasa , Kato Daiki , Matsudaira Hideki , Hirano Jun , Ohtsuka Takashi 
Published: May 2020

AbstractBackgroundTissue harvesting for patients with a lung nodule is sometimes unsuitable due to the size and location of the nodule. In such cases, it is unclear whether it is acceptable to proceed to definitive lobectomy without intraoperative frozen section analysis.MethodsWe retrospectively reviewed patients who underwent definitive lobectomy or wedge resection for frozen section analysis at our institution between 2014 and 2018. The sensitivity, specificity, and accuracies of the clinical and frozen section diagnoses were evaluated against the final pathological diagnosis.ResultsThere were 141 patients in the definitive lobectomy group and 58 patients in the frozen section analysis group, with the latter having smaller and less deep nodules and a lower rate of malignancy on clinical and final pathological diagnoses. The sensitivity, specificity, and accuracy of the clinical diagnosis were 100%, 82%, and 95%, respectively, in the frozen section analysis group and 99%, 67%, and 97%, respectively, in the definitive lobectomy group; values of frozen section diagnosis were 98%, 82%, and 93%, respectively. On subgroup analysis, all ground‐glass nodules clinically diagnosed as malignant had a final pathological diagnosis of malignancy.ConclusionsThe accuracy of the clinical diagnosis was high and was not inferior to the frozen section diagnosis. These data suggest that definitive lobectomy is an acceptable treatment option for carefully selected patients with large or deep nodules and ground‐glass nodules clinically diagnosed as malignant. To avoid unnecessary lobectomy, frozen section diagnosis should be considered for nodules likely to be benign.Key pointsSignificant findings of the studyThe accuracy of the clinical diagnosis was high and was not inferior to the frozen section diagnosis.What this study addsDefinitive lobectomy is an acceptable treatment option for carefully selected patients with large or deep nodules and ground‐glass nodules with a clinical diagnosis of malignancy.