bluuebunny/crossref_metadata_2025_split huggingface dataset:
Biology and rearing of the cogongrass gall midge,Orseolia javanicaKieffer & Docters van Leeuwen-Reijnvaan (Diptera: Cecidomyiidae)
Authors: Hidayat Purnama , Arini  , Guntoro Dwi , Takasu Keiji , Overholt William A. 
Published: February 2020

ABSTRACTImperata cylindrica(L.) Beauv. (Poaceae) is one of the most harmful weeds in the world because of its ability to spread and form high density, monospecific stands that exclude other vegetation. The cogongrass gall midge,Orseolia javanicaKieffer & Docters van Leeuwen-Reijnvaan (Diptera: Cecidomyiidae), is a stem galling insect that is only known to develop in cogongrass and has only been found on the island of Java in Indonesia. The midge attacks very young shoots, which stimulates abnormal growth, resulting in the formation of a purplish, elongate stem gall tappered to a point at the apical end. The aim of the current research was to describe the biology of the midge and develop a rearing method.Orseolia javanicacompleted its life cycle in 12-38 days with average egg, larval, and pupal periodes of 4.0 ± 0.0, 13.5 ± 3.8, and 8.6 ± 6.6 days (mean ± SD), respectively. Mated female, unmated female, and male longevities were 1.7 ± 0.47, 1.2 ± 0.41, and 1.0 ± 0.00 days (mean ± SD). Galls began to appear 29 days after larval infestation, and stem death coincided with emergence of the adult midge. The midge may have potential for biological control of cogongrass if future studies confirm a restricted host range.
Body size and composition and site-specific cancers in UK Biobank: a Mendelian randomisation study
Authors: Vithayathil Mathew , Carter Paul , Kar Siddhartha , Mason Amy M. , Burgess Stephen , Larsson Susanna C. 
Published: February 2020

ABSTRACTObjectivesTo investigate the casual role of body mass index, body fat composition and height in cancer.DesignTwo stage mendelian randomisation studySettingPrevious genome wide association studies and the UK BiobankParticipantsGenetic instrumental variables for body mass index (BMI), fat mass index (FMI), fat free mass index (FFMI) and height from previous genome wide association studies and UK Biobank. Cancer outcomes from 367 586 participants of European descent from the UK Biobank.Main outcome measuresOverall cancer risk and 22 site-specific cancers risk for genetic instrumental variables for BMI, FMI, FFMI and height.ResultsGenetically predicted BMI (per 1 kg/m2) was not associated with overall cancer risk (OR 0.99; 95% confidence interval (CI) 0-98-1.00,p=0.105). Elevated BMI was associated with increased risk of stomach cancer (OR 1.15, 95% (CI) 1.05-1.26;p=0.003) and melanoma (OR 0.96, 95% CI 0.92-1.00;p=0.044). For sex-specific cancers, BMI was positively associated with uterine cancer (OR 1.08, 95% CI 1.01-1.14;p=0.015) but inversely associated with breast (OR 0.95, 95% CI 0.92-0.98;p=0.001), prostate (OR 0.95, 95% CI 0.92-0.99;p=0.007) and testicular cancer (OR 0.89, 95% CI 0.81-0.98;p=0.017). Elevated FMI (per 1 kg/m2) was associated with gastrointestinal cancer (stomach cancer OR 4.23, 95% CI 1.18-15.13,p=0.027; colorectal cancer OR 1.94, 95% CI 1.23-3.07;p=0.004). Increased height (per 1 standard deviation, approximately 6.5cm) was associated with increased risk of overall cancer (OR 1.06; 95% 1.04-1.09;p= 2.97×10-8) and most site-specific cancers with the strongest estimates for kidney, non-Hodgkin lymphoma, colorectal, lung, melanoma and breast cancer.ConclusionsThere is little evidence for BMI as a casual risk factor for cancer. BMI may have a causal role for sex-specific cancers, although with inconsistent directions of effect, and FMI for gastrointestinal malignancies. Elevated height is a risk factor for overall cancer and multiple site cancers.
Tumor heterogeneity assessed by sequencing and fluorescencein situhybridization (FISH) data
Authors: Lei Haoyun , Gertz E. Michael , Schäffer Alejandro A. , Fu Xuecong , Tao Yifeng , Heselmeyer-Haddad Kerstin , Torres Irianna , Shi Xulian , Wu Kui , Li Guibo , Xu Liqin , Hou Yong , Dean Michael , Ried Thomas , Schwartz Russell 
Published: March 2020

AbstractComputational reconstruction of clonal evolution in cancers has become a crucial tool for understanding how tumors initiate and progress and how this process varies across patients. The field still struggles, however, with special challenges of applying phylogenetic methods to cancers, such as the prevalence and importance of copy number alteration (CNA) and structural variation (SV) events in tumor evolution, which are difficult to profile accurately by prevailing sequencing methods in such a way that subsequent reconstruction by phylogenetic inference algorithms is accurate. In the present work, we develop computational methods to combine sequencing with multiplex interphase fluorescence in situ hybridization (miFISH) to exploit the complementary advantages of each technology in inferring accurate models of clonal CNA evolution accounting for both focal changes and aneuploidy at whole-genome scales. We demonstrate on simulated data that incorporation of FISH data substantially improves accurate inference of focal CNA and ploidy changes in clonal evolution from deconvolving bulk sequence data. Analysis of real glioblastoma data for which FISH, bulk sequence, and single cell sequence are all available confirms the power of FISH to enhance accurate reconstruction of clonal copy number evolution in conjunction with bulk and optionally single-cell sequence data.Availabilitygithub.com/CMUSchwartzLab/FISH_deconvolutionContactrussells@andrew.cmu.edu
Perceived value, trust and purchase intention of organic food: a study with Brazilian consumers
Authors: Watanabe Eluiza Alberto de Morais , Alfinito Solange , Curvelo Isabelle Cristina Galindo , Hamza Kavita Miadaira 
Published: March 2020

PurposeThe consumption of organic food grows worldwide, increasing the need of studies seeking to understand factors influencing its consumption. To extend the understanding of organic food market, the present research seeks to explore the effect of perceived value on consumer trust and purchase intention in Brazil.Design/methodology/approachA survey with 274 Brazilian consumers of organic food was carried out. Perceived value was measured through four dimensions: functional, economic, social and emotional. The convergent and discriminant validities of latent variables were confirmed. The relationships among them were tested using structural equation modeling.FindingsThe results indicate that functional and emotional values positively affect consumer trust and that only emotional value motivates purchase intention. The trust had no direct influence on purchase intention. Thus, the perceived value is an important aspect in the prediction of trust and purchase intention among Brazilian consumers.Originality/valueThe identified results enlarge the understanding of Brazilian organic food market and consumer behavior and point out some opportunities for future research involving the subject.
An innovative price-setting approach: a pay-what-you-want experiment
Authors: Bitsch Linda , Hanf Jon Henrich , Rüdiger Jens 
Published: March 2020

PurposeDue to high competition in the agricultural industries and heterogeneous products, the setting of prices for direct sales to consumers is difficult. In recent years, pay-what-you-want (PWYW) is discussed as an innovative pricing strategy. This study analyses whether the implementation of a pay-what-you-want strategy can be successful and if there is a willingness to pay from the consumers for wine touristic offers. Furthermore, the study analyses, in general, how suitable experiments are as a research tool.Design/methodology/approachA PWYW mechanism creates a situation of strategic decision- making that can be modelled as a game. This can be transferred to an experimental setting. The results were analysed with a two-sided MWU test (Stata, ranksum) in order to determine whether the differences are statistically significant.FindingsParticipants pay positive prices, although theory predicts the opposite. PWYW is a good strategy to analyse the willingness-to-pay for heterogeneous and homogenous services or products. Information or reference prices have no clear influence on the willingness to pay, confirming results of other studies. There is no influence of gender and age on the payments.Practical implicationsIn general, consumers have a willingness to pay positive prices for wine- touristic offers. The willingness to pay is not different for people with or without wine knowledge. For the chosen variable information and reference price, wine producers do not have to address target groups differently.Originality/valueIt is the first study which analyses the pay-what-you-want mechanism as a tool for wine touristic activities. In addition, an experimental approach was used to analyse an innovative, consumer-based price-setting strategy.
The individualization of political activism
Authors: Bertuzzi Niccolò 
Published: March 2020

PurposeThe study aims to investigate a relevant topic, but still underestimated by sociological studies: animal advocacy, namely, the organized interest in non-human animals' life, rights and well-being. The Italian case is discussed, with a twofold objective: to highlight the evolution of some repertoires of contention and to use this study to analyze the changes of contemporary collective mobilizations and their relation with the modernization process.Design/methodology/approachThe analysis is based on an online survey (704 responses nationwide), 24 semi-structured interviews with relevant members of groups and associations and a protest event analysis. Furthermore, a vast empirical archive and some academic studies concerning Italian animal advocacy in its historical dimension have been consulted.FindingsThe paper underlines the current specificities of Italian animal advocacy, compared to past decades. The great importance assumed by personal action frames and repertoires of contention emerged as characterizing elements. Activism is always more individual and less related to collective organizations: the central role of veganism and of the internet as protest tool is underlined. Both the increasing possibilities offered by better discursive opportunities structure, but also the possible incorporation of more radical frames within consumer market dynamics emerged from the interviews and the survey.Originality/valueThe phenomenon of animal advocacy (and, more generally, the activities of contemporary social movements) is contextualized within some typical characteristics of modernity, looking both at structural “opportunities” (e.g.: the diffusion of post-materialist values) and “constraints” (e.g.: veganwashing operations). Based on previous definitions coming from social movements studies and following a debate hosted by this journal, the role of collective organizations and especially the centrality assumed by individual activism is critically analyzed, evaluating the new possibilities, but also the possible negative sides. Not only cultural changes, but also political and legal contexts matter. In this sense, both a focus on Italy and more general reflections on western modernities are proposed, trying to go beyond animal advocacy and reflecting on social movements and collective mobilizations more widely.
Journey from passion to satisfaction: roles of belongingness and psychological empowerment
Authors: Pathak Deepti , Srivastava Shalini 
Published: March 2020

PurposeThe present research work is intended to investigate the work passion and job satisfaction relationship of social workers in Delhi/NCR and examine the influence of belongingness and psychological empowerment on the association. The study has used self-determination theory to support the relationship.Design/methodology/approachThe study used the standardized instruments to assess the relationship. Statistical tools such as SEM, convergent and discriminant validity, reliability, and moderated regression analysis were used to analyze the data.FindingsThe study found that psychological empowerment and belonging moderated the association between passion and job satisfaction.Practical implicationsHR managers and practitioners should promote a culture of openness, empowerment, collectivism, and meaningful work to ensure the fulfillment of psychological needs of the social workers.Social implicationsThe fulfillment of psychological needs can become a significant motivator for the social workers as due to political and administrative constraints, giving financial incentives or introducing variable financial pay would not be possible.Originality/valueThe authors were not able to locate any paper exploring the relationship between work passion and job satisfaction of social workers. The present research work proposes that there are certain psychological needs, which can be fulfilled other than monetary needs in order to motivate social workers for their work.
Construction and psychometric analysis of teachers mobile learning acceptance questionnaire
Authors: Mittal Niti , Alavi Shirin 
Published: March 2020

Purpose
The mobile technology-pedagogy nexus has been instrumental in shifting the focus of information and communications technology in education from e-learning to mobile learning (ML). Learning with mobile technologies is more accessible, flexible, situated, personal, collaborative and lifelong. The use of technologies for educational purposes is the primary focus of higher education institutes. The successful implementation of ML rests on its acceptance by higher education teachers. It is, therefore, pertinent to determine the factors that impact higher education teachers’ acceptance of ML. This study aims to identify these factors and develop a reliable and valid instrument to measure higher education teachers’ acceptance of ML.

Design/methodology/approach
A sequential exploratory research design, a type of mixed method research was used for the study. A sound conceptual framework and rigorous scale development process provided the background for data collection and validation. Probability proportionate to size sampling technique was used to gather data from 212 higher education teachers from 42 higher education institutes. Teachers gave their responses on five-point Likert type items. The responses obtained were subjected to exploratory factor analysis, which provided a nine-factor solution. The factors were further validated through confirmatory factor analysis.

Findings
Teachers’ mobile learning (ML) acceptance questionnaire (TMLAQ), a 32-item questionnaire was developed to measure acceptance of ML among higher education teachers. A detailed literature review, interviews and focus group discussions with teachers facilitated the identification of nine constructs or antecedents of ML acceptance. These constructs were named as: perceived usefulness, ease of use, self-enhancement, constructivist belief (CB), technological barriers, attitude and behavioral intention. The scale possesses sound psychometric properties such as reliability, face validity, content validity and construct validity.

Practical implications
This instrument can serve as an authentic, valid and reliable measure of higher education teachers’ ML acceptance. It can be used by organizations to assess teachers’ perceptions and aid in the successful ML implementation.

Originality/value
There is a lack of measurement instrument that caters to wide angle view of teachers’ perception toward ML in the Indian context. This comprehensive scale will bridge this gap. Two new research constructs: CB and self-enhancement were found to be crucial from the teachers’ point of view. These constructs have not been explored in previous technology acceptance studies. To the best of the knowledge, such a comprehensive study has not been undertaken yet in the Indian context. This study can serve as a model for conducting similar kinds of studies in other developing nations.
Connecting evidence-based policing and cybercrime
Authors: Koziarski Jacek , Lee Jin Ree 
Published: March 2020

PurposeThis paper explores the various challenges associated with policing cybercrime, arguing that a failure to improve law enforcement responses to cybercrime may negatively impact their institutional legitimacy as reliable first responders. Further, the paper makes preliminary links between cybercrime and the paradigm of evidence-based policing (EBP), providing suggestions on how the paradigm can assist, develop, and improve a myriad of factors associated with policing cybercrime.Design/methodology/approachThree examples of prominent cybercrime incidents will be explored under the lens of institutional theory: the cyberextortion of Amanda Todd; the hacking of Ashley Madison; and the 2013 Target data breach.FindingsEBP approaches to cybercrime can improve the effectiveness of existing and future approaches to cybercrime training, recruitment, as well as officers' preparedness and awareness of cybercrime.Research limitations/implicationsFuture research will benefit from determining what types of training work at the local, state/provincial, and federal level, as well as evaluating both current and new cybercrime policing programs and strategies.Practical implicationsEBP approaches to cybercrime have the potential to improve police responses to cybercrime calls for service, save police resources, improve police–public relations during calls for service, and improve police legitimacy.Originality/valueThis paper links cybercrime policing to the paradigm of EBP, highlighting the need for evaluating and implementing effective evidence-based approaches to policing cybercrime.
Reporting cybercrime victimization: determinants, motives, and previous experiences
Authors: van de Weijer Steve , Leukfeldt Rutger , Van der Zee Sophie 
Published: March 2020

PurposeCybercrime rates have increased rapidly during the last couple of decades, resulting in cybercrimes becoming common crimes. However, most victims do not report cybercrimes to the police. Therefore, this study examines reporting cybercrime victimization and provides insights into the role of the police in this process.Design/methodology/approachA sample of 595 individuals was used. All respondents were shown three vignettes about hypothetical cybercrime victimization and were asked to imagine that this situation happened to them. Four crime and reporting characteristics were manipulated across vignettes. Respondents' intentions to report to the police and to other organizations were used as the dependent variables in regression analyses. Four random factors in the vignettes (i.e. type of crime, seriousness of crime, victim–perpetrator relationship, and reporting modality), as well as several characteristics of the respondents were included in the regression models as independent variables.FindingsThe type of cybercrime is the most important predictor for reporting behaviors. Other determinants are: more serious offenses were more often reported and offenses are less often reported in situations where the victim personally knows the perpetrator. Furthermore, there is large discrepancy between intended and actual cybercrime reporting. These findings provide valuable insights into the factors that influence reporting behavior in the real world. Only a fifth of respondents indicated that they would not report cybercrime victimization to the police. This implies that attempts at improving reporting rates should not solely be focused on improving people's attitudes, but also on removing obstacles to turn these attitudes into actions.Originality/valueIn the current study, the authors contribute to the existing literature by asking a large sample from the general population in the Netherlands about both their intended reporting behavior (i.e. a vignette study) and their actual reporting behavior (i.e. self-reports) of victimization of a wide variety of different types of cybercrime. Determinants of both reporting to the police as well as to other organizations are examined. Moreover, respondents are asked about motivations behind their decision to (not) report a cybercrime to the police. Last, people were asked about their past experiences with reporting cybercrime victimization to the police.
Technology for real estate education and practice: a VR technology perspective
Authors: Hou Huiying (Cynthia) , Wu Hao 
Published: March 2020

PurposeLed by the rapid advancement of information technology in engineering, business and creative industries, the emergence of new technology such as virtual reality (VR) and its use in education and practices are clearly observed. Although widely spread in industry practices, technology-led innovation is applied rather slowly in the tertiary real estate education. This paper examines the integrative effect of VR technology in a real estate course.Design/methodology/approachThis study adopts a case study approach. Using an experimental course design and delivery in a business school real estate programme from Hong Kong, this paper shows the design, development and implementation of an innovative teaching model with VR being integrated. A survey was conducted to gain feedback information from participating students towards teaching innovation. It identifies the role and values of adopting VR technology in real estate education as pedagogical tool.FindingsA new teaching model integrated with VR technology to deliver a real estate course has demonstrated its ability and potential to assist the development and enhancement of student's sense of value and place, as well as improving communicative efficiency of property investigation and the analysis of trade process. Findings from the study have implications for future global real estate industry practice and education.Originality/valueThe critical role of information technology to revolutionise the global economy and its real estate sector is apparent. Few studies have inquired about attempts and experience of integrating VR technology in real estate education towards direct link to industry practice. This paper is a major attempt to bring attention to this important concern.
Learning organization thought leaders interview series
Authors: Reese Simon R. , Sidani Yusuf 
Published: March 2020

Purpose
The purpose of this paper is to synthesize the learnings from prior interviews with thought leaders in learning organization conceptual development. Prior interviews with Karen Watkins, Victoria Marsick, Michael Marquardt, Bob Garratt and Peter Senge are included in the summary, which is an interim step as The Learning Organization continues to explore the learning organization history and evolution.

Design/methodology/approach
The paper summarizes prior interviews to uncover commonalities and differences in the development and evolution of the learning organization concepts as described by thought leaders.

Findings
Both commonalities and differences exist in definition, development of theory and resilience since original publication. Common threads in concept develop appear across the authors mainly in influences by Revans, Argyris and Schön. Differences also exist in how each author developed learning organization constructs.

Originality/value
The synthesis reveals that although the learning organization may have differing definitions, there are commonalities that tie some concepts together. Additional interviews will be continued in the exploration of the learning organization evolution.