bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mechanical integrity of gas turbine enclosure doors under fire test conditions for A0 fire rating
Authors: Sathujoda Prabhakar , Arnell Paul , Deans Andrew 
Published: August 2018

PurposeAs fire doors are passive fire protection parts, the doors have to be certified through standard fire tests. It is usual practice to perform the standard fire testing on the components which require the fire certification. However, some gas turbine enclosure doors are too large to test at the test facility and hence the fire resistance test is practically not possible. The purpose of this paper is to develop a reliable finite element model, validate the model using the specimen door test results and extend the method to actual gas turbine enclosure doors to support the fire certification.Design/methodology/approachFirst, the standard fire testing on enclosure door test specimen was carried out. Second, the finite element analysis model was built and tuned to match the standard fire test deflections, and finally, the same modelling technique was extended to model the actual gas turbine enclosure door to verify the results for fire certification process.FindingsGap analysis, a method of post processing is suggested for result analysis. It was found suitable to verify the gap openings which are required for A0 rated fire certification according to fire test procedure code and also to check the mechanical integrity of the enclosure door frame assembly.Originality/valueThe method presented in this work could be used as support information along with the test specimen results for A0 class fire rating certification of the doors according to International Maritime Organization Resolution MSC.307 (88) Annexure 1: Part 3.
Work design and frontline employee engagement
Authors: “Miracle” Qi Ji , Ellinger Alexander E. , Franke George R. 
Published: August 2018

PurposeIn response to calls for the identification of approaches that promote frontline employee (FLE) engagement, the purpose of this paper is to extend the current understanding of the influence of work design by testing competing mediating models that assess job resource and social exchange aspects of work design as either intermediate or antecedent mechanisms in reciprocal social exchanges between service provider firms and FLEs. Moderating effects of interactions between job resources and organizational support and customer focus on engagement are also assessed.Design/methodology/approachA questionnaire is administered to 525 FLEs from multiple service industries. Structural equation modeling is used to test hypotheses and examine their robustness relative to competing models. Common method bias is assessed using a confirmatory factor analysis marker variable technique.FindingsOrganizational support and customer focus are identified as proximal mediating social exchange aspects of work design that, consistent with role-specific conceptualizations of engagement, differentially influence FLE job and organization engagement.Practical implicationsThe study findings offer insight about how firms can implement job resource and social exchange aspects of work design to favorably influence FLE engagement.Originality/valueServices marketing research continues to focus more on service recipients than on FLE service providers. The examination of reciprocal social exchanges between service provider firms and FLEs sheds light on the complexities associated with exploiting aspects of work design to more effectively engage FLEs.
Employee learning motives, perceived learning opportunities and employability activities
Authors: Boomaars Chantal , Yorks Lyle , Shetty Rajna 
Published: August 2018

Purpose
This paper aims to examine whether employability activities are driven by employee learning motives and their perception of learning opportunities.

Design/methodology/approach
Data were collected using a closed questionnaire survey from three different profit organizations (N = 405). Hypotheses were tested through hierarchical multiple regression analysis.

Findings
Hierarchical regressions showed that the learning motive “personal development” had a positive relationship with “perceived learning opportunities” and “employability activities,” as hypothesized. “Perceived learning opportunities” did not mediate the relationship between the learning motive “personal development” and “employability activities.” No relationships were found among the learning motives “social pressure,” “perceived learning opportunities” and “employability activities”.

Originality Value
This study is among the first to investigate the motives that employees must engage in individual learning paths. It attempts to predict their self-reported employability activities based on these motives and on the learning opportunities that employees perceive.
The communication model of forest management based on environmental awareness
Authors: Yanti Refniza , Syahza Almasdi , Hidir Achmad , Suwondo Suwondo 
Published: August 2018

Purpose
The purpose of this paper is to do an in-depth comprehension about local wisdom values related to the forest management in Nagari Koto Malintang, Tanjung Raya District, Agam Regency, West Sumatra Province, and to find a communication model in the forest management based on environmental awareness. Research on indigenous forest management has been widely done, but information related to information flow and communication pattern of indigenous people in conveying local wisdom values to the management of forests is little to find.

Design/methodology/approach
The design employed in this research was case study and field research. Field research is the research to intensively examine the background of current state of the environmental interaction according to these social units: individual, group, institution or society. The research was undertaken in Nagari Koto Malintang, Tanjung Raya District, Agam Regency. The location selection was conducted purposively under the preserved condition of the forests in Koto Malintang, despite the damages occurring to most of forests in Indonesia. The preserved condition of Nagari Koto Malintang forest is characterized by many trees with diameter of 2–3 meters left undisturbed by the communities, so that they are protected from the danger of landslides. The determination of informants in this research was made by purposive sampling.

Findings
The community and government of Nagari Koto Malintang has arranged the space and land of Nagari, by making a division as follows: the upper area is made into catchment area, middle area is made into a plantation area and settlement area and the lower area is made into cultivated land. The ecologic benefits of the forest for the community of Nagari Koto Malintang are: liberating the community from the threats of flood and galodo, providing sufficient water availability, providing good air quality and maintain and preserve flora and fauna. The perceived economic benefits are: the availability of adequate irrigation for agriculture, plantations, tabek and ponds of which crops provide economic benefits to the community. Socially, forests make the community members’ relationship grow closer, improve community participation in forest management, create jobs and maintain local knowledge and institutions.

Originality/value
This is one of few studies resulted from different customs and norms of each indigenous community, thus it is necessary to study the uniqueness of Nagari Koto Malintang community in managing the forest. This research was conducted to obtain complete description of how indigenous people of Nagari Koto Malintang community build communications and disseminate information related to wisdom, thus giving rise to common awareness in the sustainable forest management and ultimately bringing up a model of forest management communication.
Obstacles to problem-oriented policing in Montevideo
Authors: del Castillo Federico 
Published: August 2018

Purpose
In the broad context of Uruguay’s police reform, the Ministry of Interior is implementing a problem-oriented policing (POP) program in Montevideo, Uruguay’s capital city. The purpose of this paper is to examine the obstacles confronted by this program over its implementation.

Design/methodology/approach
Data were collected through 20 semi-structured interviews conducted with members of the Uruguay National Police selected via purposeful sampling. The study relies on a grounded theory approach. Findings were interpreted based on five categories of analysis.

Findings
Findings point at obstacles confronted by the program associated with contextual organizational factors, a general misunderstanding of POP, leadership, resistance and motivation, and availability and sufficiency of resources.

Originality/value
Although POP has been implemented in a variety of settings, it is still rare in Latin America. As a consequence, research on POP is limited in this region. This study adds to the small but growing body of literature on the police reform in Latin America, and at the same time, is one the few pieces of research on the police reform in Uruguay.
Racialized perceptions of the police
Authors: Ra Kwang Hyun , Kim YeonSoo 
Published: August 2018

PurposeThe purpose of this paper is to examine differences in latent structures/dimensions in public perceptions of the police by race/ethnicity and level of identification with a given race/ethnic group.Design/methodology/approachTo identify differences in dimensions of juveniles’ perceptions of the police by the sub-samples, factor analyses were conducted utilizing data from the Gang Resistance Education and Training program evaluation.FindingsThe results show that minority juveniles have a relatively fragmented dimensional structure for the construct of perceptions of the police, while white juveniles have a unidimensional structure. Furthermore, moderate within-group differences in structures were found among African–American juveniles.Research limitations/implicationsThe results of the current study call for further examination of racial invariant assumptions in criminology. Since individual dimensions constituting perceptions of the police vary by race/ethnicity, those dimensions may potentially have unique associations with endogenous variables (e.g. criminality and cooperation with the police) according to individuals’ racial/ethnic membership.Practical implicationsPolice should clearly understand individuals’ dimensions constituting perceptions of the police and should identify dimensions that greatly impact precursors to compliance and cooperation with police such as perceived police legitimacy or perceived risk of sanction.Originality/valueIndividuals’ dimensions constituting perceptions of the police have significant implications on the construction of measures and their associations with other variables; however, racial differences in these dimensions have not been explored since Sullivanet al.’s (1987) research about three decades ago. In addition, the current study examined within-race differences in the dimensions constituting perceptions of the police.
Comparison of personas between two academic libraries
Authors: Zaugg Holt , Ziegenfuss Donna Harp 
Published: August 2018

Purpose
A persona describes a group of library patrons as a single person to better identify and describe user patterns and needs. Identifying personas in academic libraries can assist in library planning by focusing on patrons. Initially, personas were thought to be unique to each library; additional insights led the researchers to rethink this assertion. The purpose of this paper is to determine if personas, developed in one library, are unique or more universal than previously thought.

Design/methodology/approach
In this study, 903 surveys were completed across two institutions asking library patrons to identify use patterns within each library. Mean score responses were analyzed using an ANOVA, principal component analysis and RapidMiner technology. All analyses were used to identify personas with common interests and places personas in groups or neighborhoods.

Findings
The findings provide evidence for the universality of academic library personas. However, differences occur in how the personas are grouped and use different library services and resources.

Originality/value
Personas allow librarians to view patrons in a more personal way as they connect personas to specific library spaces. While the personas appear to be universal, their interactions with each other depend on specific library amenities.
Effects of pH, UV-B radiation and NaCl on anthocyanin stability from vivid blue petals of Clitoria ternatea L., a potential natural colourant from legume crop
Authors: Mahmad Noraini , Taha R.M. 
Published: August 2018

Purpose
The purpose of this study is to investigate the effects of pH, UV-B radiation and NaCl on anthocyanin extracted from vivid blue petals of Clitoria ternatea L. (legume crop), as a potential natural colourant for food, dye or coating technology.

Design/methodology/approach
The anthocyanin from petals of Clitoria ternatea was extracted using 0.5 per cent trifluroacetic (TFA) in methanol solution. The liquid colourant was exposed to different pH (1, 4.5 and 5.5), UV-B radiation and sodium chloride (NaCl). The results were compared using UV-vis spectrophotometric analysis.

Findings
Anthocyanins are sensitive and quickly degrade in the presence of light. In the dry powder form, the anthocyanin is easier to maintain and preserve (storage).

Research limitations/implications
Anthocyanins extracted from vivid blue petals of Clitoria ternatea L. are sensitive and quickly degrade in the presence of light.

Practical implications
The anthocyanin pigments extracted from Clitoria ternatea L. petals with methanolic acid were successfully coated on glass slides. The combination of binders and pigments had produced environmental paint which added with stabilisers (additives) for better durability. Acrylic has been known for its high weathering and embrittlement resistance, good mechanical and electrochemical properties and gloss retention.

Social implications
This anthocyanin is suitable as natural colourant especially in baby products, cosmetics production or for coating and varnish application.

Originality/value
Till date, the natural colourant of Clitoria ternatea L. petals is widely used in food. However, this result is a new finding, as there is no report on the potential of applications of this natural colourant for coating technology. Therefore, the current study with appropriate extraction method was significantly based on the relevant literatures of coating production from pigment by using other plant species. The findings and conclusion highlight the practicality as the potential applications in coating technology.
Anxiety about digital security and terrorism, and support for counter-terror measures
Authors: Gallova Viktoria , Palasinski Marek , Shortland Neil , Humann Michael , Grieve Lorraine Bowman 
Published: August 2018

PurposeThe purpose of this paper is to determine the potential predictors of anxiety about digital security, terrorist threats and support for high-tech counter measures.Design/methodology/approachIn Study 1, 195 participants indicated their anxiety about digital security systems, data protection and social networking sites. In Study 2, 107 participants indicated their anxiety about domestic terrorism, international terrorism and extremist groups. In Study 3, 261 participants indicated their support for high-tech counter-terrorism measures.FindingsStudy 1 suggests that whereas anxiety about digital security systems, data protection and social networking sites was positively predicted by right-wing authoritarianism, anxiety about social networking was also negatively predicted by time spent online. Study 2 shows that time spent online was a negative predictor of anxiety about domestic terrorism. Study 3 indicates that the strongest positive predictor of support for all the measures was right-wing authoritarianism, followed by national identity.Research limitations/implicationsThe findings show the relevance of terror management theory to digital security and counter-terrorism.Practical implicationsIt appears that right-wing authoritarianism and national identity may serve as mechanisms for people to subjectively counter the presented threats. This notion may inform relevant policy and practice aimed at making communities safer and potentially helps introduce counter-terror measures with less public backlash.Social implicationsWhen designing counter-terror measures, policy makers should consider compound national identities (e.g. Catalan or Basque people).Originality/valueThe paper makes contribution to under-explored areas of terrorism anxiety and support for counter-terror measures.
Haem oxygenase‐1 up‐regulation by rosiglitazone via ROS‐dependent Nrf2‐antioxidant response elements axis or PPARγ attenuates LPS‐mediated lung inflammation
Authors: Cho Rou‐Ling , Yang Chien‐Chung , Tseng Hui‐Ching , Hsiao Li‐Der , Lin Chih‐Chung , Yang Chuen‐Mao 
Published: August 2018

Background and PurposeHaem oxygenase‐1 (HO‐1) is induced by thiazolidinediones including rosiglitazone and exerts anti‐inflammatory effects in various models. However, the molecular mechanisms underlying rosiglitazone‐induced HO‐1 expression remain largely unknown in human pulmonary alveolar epithelial cells (HPAEpiCs).Experimental ApproachHO‐1 expression was determined by real time‐PCR, Western blotting and promoter reporter analyses. Signalling pathways were investigated using pharmacological inhibitors or specific siRNAs. Interactions between nuclear factor erythroid‐2‐related factor (Nrf2) and antioxidant response elements (ARE) binding site of the HO‐1 promoter were investigated with chromatin immunoprecipitation assays.Key ResultsUp‐regulation of HO‐1 in HPAEpiCs or in mice by rosiglitazone blunted ICAM‐1 expression and monocyte adhesion to HPAEpiCs challenged with LPS. Rosiglitazone‐induced HO‐1 expression was significantly attenuated by NADPH oxidase (NOX) inhibitors (apocynin and diphenyleneiodonium) or ROS scavenger (N‐acetyl cysteine). The involvement of NOX activity and ROS generation in rosiglitazone‐induced HO‐1 expression was confirmed by transfection with p47phox or NOX2 siRNA. Moreover, pretreatment with the inhibitors of c‐Src (c‐Srci II), proline‐rich tyrosine kinase 2 (Pyk2) (PF431396), Akt (Akti VIII) or PPARγ (GW9662) and transfection with siRNA of c‐Src, Pyk2, Akt or PPARγ abolished the rosiglitazone‐induced HO‐1 expression in HPAEpiCs. Subsequently, Nrf2 was activated by phosphorylation of c‐Src, Pyk2 and Akt, which turned on transcription of HO‐1 gene by binding to AREs binding site and enhancing ARE promoter activity.Conclusions and ImplicationsRosiglitazone induces HO‐1 expression via either NOX/ROS/c‐Src/Pyk2/Akt‐dependent Nrf2 activation or PPARγ in HPAEpiCs and suppresses LPS‐mediated inflammatory responses, suggesting that PPARγ agonists may be useful for protection against pulmonary inflammation.
Climatically driven changes in primary production propagate through trophic levels
Authors: Stoner David C. , Sexton Joseph O. , Choate David M. , Nagol Jyothy , Bernales Heather H. , Sims Steven A. , Ironside Kirsten E. , Longshore Kathleen M. , Edwards Thomas C. 
Published: August 2018

AbstractClimate and land‐use change are the major drivers of global biodiversity loss. Their effects are particularly acute for wide‐ranging consumers, but little is known about how these factors interact to affect the abundance of large carnivores and their herbivore prey. We analyzed population densities of a primary and secondary consumer (mule deer,Odocoileus hemionus, and mountain lion,Puma concolor) across a climatic gradient in western North America by combining satellite‐based maps of plant productivity with estimates of animal abundance and foraging area derived from Global Positioning Systems telemetry data (GPS). Mule deer density exhibited a positive, linear relationship with plant productivity (r2 = 0.58), varying by a factor of 18 across the climate‐vegetation gradient (range: 38–697 individuals/100 km2). Mountain lion home range size decreased in response to increasing primary productivity and consequent changes in the abundance of their herbivore prey (range: 20–450 km2). This pattern resulted in a strong, positive association between plant productivity and mountain lion density (r2 = 0.67). Despite varying densities, the ratio of prey to predator remained constant across the climatic gradient (mean ± SE = 363 ± 29 mule deer/mountain lion), suggesting that the determinacy of the effect of primary productivity on consumer density was conserved across trophic levels. As droughts and longer term climate changes reduce the suitability of marginal habitats, consumer home ranges will expand in order for individuals to meet basic nutritional requirements. These changes portend decreases in the abundance of large‐bodied, wide‐ranging wildlife through climatically driven reductions in carrying capacity, as well as increased human–wildlife interactions stemming from anthropogenic land use and habitat fragmentation.
Domain‐specific biological functions of the transcription factor Gata2 on hematopoietic differentiation of mouse embryonic stem cells
Authors: Kitajima Kenji , Kanokoda Mai , Nakajima Marino , Hara Takahiko 
Published: August 2018

AbstractThe generation of mouse hematopoietic stem cells from hemogenic endothelial cells (HECs) in the aorta/gonad/mesonephros region of developing embryos requires a zinc finger transcription factor Gata2. In the previous study, an enforced expression of Gata2 in vitro promoted the production of HECs from mesodermal cells differentiated from mouse embryonic stem cells (ESCs). Our research group has previously demonstrated that the enforced expression of Gata2 in ESC‐derived HECs enhances erythroid and megakaryocyte differentiation and inhibits macrophage differentiation. However, the manner in which the multiple functions of Gata2 are regulated remains unclear. Mouse ESCs differentiate into various types of hematopoietic cells when cocultured with OP9 stromal cells (OP9 system). Using this system and the inducible gene cassette exchange system, which facilitates the establishment of ESCs carrying inducible transgenes under an identical gene expression regulatory unit, the domain‐specific functions of Gata2 were systematically dissected in this study. We determined that the N‐terminal (amino acid 1–110) region of Gata2 was an erythroid‐inducing region, both the middle (amino acid 111–200) and C‐terminal (amino acid 413–480) regions were megakaryocyte‐inducing regions. Furthermore, the present data strongly suggest that intramolecular antagonistic interactions between each of these regions fine‐tune the biological functions of Gata2.