bluuebunny/crossref_metadata_2025_split huggingface dataset:
Do Australian media apply recommendations when covering a suicide prevention campaign?
Authors: Thienel Renate , Bryant Marc , Hazel Gavin , Skehan Jaelea , Tynan Ross 
Published: May 2019

Purpose
Media reporting and portrayals of mental illness and suicide can play an important role in shaping and reinforcing community attitudes and perceptions. Depending on the content, a report about suicide can have either a negative (Werther-) or a positive (Papageno-) effect. Evidence-informed recommendations for the reporting of suicide in Australia are provided under the Mindframe initiative. The purpose of this paper is to assess the application of these recommendations in broadcasts associated with one of the largest national campaigns to promote suicide prevention, the R U OK? Day, a yearly campaign of the Australian suicide prevention charity R U OK?

Design/methodology/approach
The sample consisted of 112 (32 TV, 80 radio) Australian broadcasts discussing the R U OK? Day suicide prevention campaign during the month preceding the 2015 campaign and on the national R U OK? Day itself. Broadcasts were coded for medium (TV or radio), content (suicide focus, mental illness focus or both) and consistency with Mindframe recommendations.

Findings
Over 97 per cent of broadcasts used language consistent with Mindframe recommendations. None of the broadcasts used images that negatively portrayed mental illness or suicide; there were no instances of using mental illness to describe a person’s behaviour; and no sensationalizing or glamorising terminology was used in the broadcasts. However, less than 40 per cent of the broadcasts included help-seeking information (e.g. helplines) and some of the broadcasts used negative or outdated terminology (e.g. “commit” suicide; “suffering” from mental illness).

Originality/value
The present study is the first to examine consistency with reporting recommendations around a national suicide prevention campaign (R U OK? Day). The results can steer improvements in current reporting and inform strategies to optimise future reporting.
Reducing perceived vulnerability to increase utilization of nonprofit services
Authors: Tanner Emily C. , Su Lixun 
Published: May 2019

Purpose
The purpose of this study is to understand how perceived vulnerability reduces consumers’ willingness to utilize services offered by nonprofit organizations (NPOs).

Design/methodology/approach
Three online surveys were conducted across two research contexts to test the proposed model. Hayes’ PROCESS was used to analyze the data.

Findings
Perceived vulnerability decreases the perception of relational benefits, which in turn decrease consumers’ commitment to NPOs. Reduced commitment lessens consumers’ willingness to cooperate and acquiesce to organizations’ recommendations. Risk aversion and cognitive ability mediate the relationship between perceived vulnerability and perceived relational benefits.

Research limitations/implications
The findings uncover mechanisms through which perceived vulnerability influences perceived relational benefits, contributing to the understanding of behaviors of consumers that perceive vulnerable. This paper does not manipulate consumers’ perceived vulnerability but only measures their perceived vulnerability, limiting the explanatory power of causal relationships between perceived vulnerability and perceived relational benefits.

Practical implications
This study can provide some insight for NPOs about how to better serve their target population. To increase willingness to utilize service offerings, NPOs should decrease their perceived risks of new services.

Originality/value
This paper clarifies why consumers that perceive vulnerability are not willing to deploy the NPOs’ services which could improve their situation by demonstrating that cognitive ability and risk aversion mediate the relationship between perceived vulnerability and perceived relational benefits.
Establishing a maker culture beyond the makerspace
Authors: Beavers Karen , Cady Jennifer Esteron , Jiang Amy , McCoy Liberty 
Published: May 2019

Purpose
The purpose of this paper is to describe the process of fostering a maker culture in a liberal arts university. It explores the impact of making on student learning and engagement, as well as the role of the library’s maker program.

Design/methodology/approach
This paper is a case study that presents the tools and activities used in an academic library’s maker program. Structured interviews were conducted with faculty, staff and students to review the program and maker culture influence on campus.

Findings
Findings highlight the library’s role in supporting maker culture on a liberal arts campus and address ways making contributes to student engagement and learning. Interviewees also recommend strategies to increase awareness and market the library’s maker program to engage a wider community.

Originality/value
Though there are many articles written about the maker movement and libraries, this study contributes to the growing body of research on makerspaces in higher education, with particular focus on a library at a liberal arts university.
Social enterprises in quasi-markets: exploring the critical knowledge gaps
Authors: Mason Chris , Roy Michael J. , Carey Gemma 
Published: May 2019

Purpose
This paper aims to explore how social enterprises are treated in scholarly research on quasi-markets. In so doing, the paper aims to show that a number of critical knowledge gaps persist which require deeper engagement from researchers, practitioners and policymakers alike.

Design/methodology/approach
This study adopts a conceptual analysis of the existing literature concerning social enterprises and quasi-markets.

Findings
The paper finds that there are four main knowledge gaps in this area. First, there are moral dilemmas created by boundary shifts, arising from the development of quasi-markets. Second, the phenomenon of “tactical mimicry” (Day and Teasdale 2016) represents a key theoretical platform not yet fully explored. Third, the lack of clear, comparative assessments of social enterprises across quasi-markets, and other types of service providers is also apparent despite offering a significant methodological opportunity for scholars. Fourth, there is the issue of how social enterprises engage in, and resource the operational functions that will support their management of conflicting logics, especially rigorous impact measurement.

Originality/value
This paper uses a synthesis of key social enterprise and quasi-market studies to extend current debate in this area, which tends to be diffused and complex. By focussing on critical knowledge gaps, the paper contributes a meta-level appraisal of the key areas for future research, providing a focussed agenda for scholars to target their efforts in growing this important body of knowledge.
Outline Shape Analysis on the Trochlear Constriction and Olecranon Fossa of the Humerus: Insights for Sex Estimation and a New Computational Tool,
Authors: Ammer Saskia , d'Oliveira Coelho João , Cunha Eugénia Maria 
Published: May 2019

AbstractSex estimation through visual analysis of the distal humerus can contribute to establishing the biological profile of an unidentified skeletal individual. Using statistical shape modeling, the trochlear constriction open curves and olecranon fossa closed outlines of 151 humeri were digitized and analyzed. The shape configurations exhibited strikingly different degrees of sexual dimorphism when evaluated using linear discriminant analysis with leave‐one‐out cross‐validation. The trochlear constriction performed poorly, correctly classifying 63.6% of the individuals. However, the olecranon fossa showed high sexual dimorphism, presenting a 94.0% accuracy. A simpler model using only two principal components was also generated. While the accuracy is slightly inferior (88.1%), it has the advantage of being constrained to bidimensional components that were translated into morphoscopic variables within a simulator interface. This allowed us to implement the method through a web application that does not require users to be trained in landmark digitization or have knowledge of geometric morphometrics.
EM telemetry assessment for horizontal drilling in part of the Tarim basin through numerical simulation
Authors: Fayemi Olalekan , Di Qingyun , Zhen Qihui 
Published: May 2019

AbstractElectromagnetic telemetry is bi‐directional transmission of borehole data for effective drilling, especially in unconventional wells. In this study, numerical simulations was used to investigate the possibility of applying EM telemetry for measurement while drilling (MWD) in an ultra‐deep borehole in the Tahe region of the Tarim basin, using the drill string as an antenna excited as a gaped dipole source to quantify spatial variations of the electromagnetic field from subsurface to the surface. Results confirm that the distribution of the electric field along the drill string is sensitive to vertical variations of electric conductivity in the host rock. The simulated results show a high attenuation within the conductive formations, thereby limiting the effectiveness of EM telemetry in data transfer to the surface. In addition, the changes in thickness and resistivity of the target region affects the amplitude of the desired response.
Zircon Growth During Subduction and Exhumation Metamorphism of Mafic Rocks, Aktyuz terrain, North Tiahshan, Kyrgyzstan
Authors: DONG Hanwen , XU Zhiqin , YI Zhiyu , MA Zeliang 
Published: May 2019

AbstractThe Yardoi dome is located in the eastern end of the north Himalayan domes (NHD), distributed in northwest‐southeast direction. Previous mapping and analytical studies established the distribution of three lithologic–tectonic units, positions of the upper detachment fault and the lower detachment fault. The lower detachment fault is a strongly deformed top‐NW shear zone with ∼800 m thick, termed as the Yardoi detachment fault (YDF). LA‐ICP‐MS zircon U–Pb dating yielded a crystallization age of 19.57 ± 0.23 Ma ∼15.5 ± 0.11 Ma for the leucogranite dyke swarm, which indicates that the ductile motion along the YDF began at ca.20 Ma. Muscovite from the three studied samples yielded 40Ar/39Ar ages between 14.05 ± 0.2 Ma and 13.2 ± 0.2 Ma. The biotite from the garnet‐bearing two‐mica gneiss have 40Ar‐39Ar age of 13.15 ± 0.2 Ma. These results suggest that the exhumation led to cooling through the 370°C Ar closure temperature in muscovite at ∼14 Ma to the 335°C Ar closure temperature in bioitte at ∼13 Ma. Thermochronological data indicates that ductitle motion along the YDF continued until at least 13 Ma. We correlate the YDF to the South Tibet detachment system (STDS) on the basis of lithological, metamorphic, structural, and chronological criteria and consider the YDF, a top‐to‐northwest shear zone, may represent the northern extension of the STDS. Comparing the Yardoi dome to the other domes in the NHD, the cooling ages show a clear diachronism and they are progressively younger from the west to east Himalaya.
The origin and emplacement of the Lajishankou ophiolite complex in the South Qilian belt: evidences from geological mapping
Authors: FU Changlei , YAN Zhen , BUCHMAN Solomon , AITCHISON Jonathan , NIU Manlan 
Published: May 2019

AbstractMany ophiolite complexes like those of Oman and New Caledonia represent fragments of ancient oceanic crust and upper mantle generated at supra‐subduction zone environments and have been obducted onto the adjacent rifted continental margin together with the accretionary complexes and intra‐oceanic arcs. The Lajishan ophiolite complexes in the Qilian orogenic belt along the NE edge of the Tibet‐Qinghai Plateau are one of several ophiolites situated to the south of the Central Qilian block. Our geological mapping and petrological investigations suggest that the Lajishankou ophiolite complex consists of serpentinite, wehrlite, pyroxenite, gabbro, dolerite, and pillow and massive basalts that occur in a series of elongate fault‐bounded slices. An accretionary complex composed mainly of basalt, radiolarian chert, sandstone, mudstone, and mélange lies structurally beneath the ophiolite complex. The Lajishankou ophiolite complex and accretionary complex were emplaced onto the Qingshipo Formation of the Central Qilian block which shows features typical of turbidites deposited in a deep‐water environment of passive continental margin. Our geochemical and geochronological studies indicate that the mafic rocks in the Lajishankou ophiolite complex can be categorized into three distinct groups: massive island arc tholeiites, 509 Ma back‐arc dolerite dykes, and 491 Ma pillow basaltic and dolerite slices that are of seamount origin in a back‐arc basin. The ophiolite and accretionary complex constitute a Cambrian‐early Ordovician trench‐arc system within the South Qilian belt during the early Paleozoic southward subduction of the South Qilian Ocean prior to Early Ordovician obduction of this system onto the Central Qilian block.
Kalaymyo Peridotite Massif in the Indo‐Myanmar Ranges (western Myanmar): Its Mineralogy, Geochemistry and Tectonic Implications
Authors: NIU Xiaolu , LIU Fei , YANG Jingsui , DILEK Yildirim 
Published: May 2019

AbstractMesozoic ophiolites crop out discontinuously in the Indo‐Myanmar Ranges in NE India and Myanmar, and represent the remnants of the Neotethyan oceanic lithosphere. These ophiolites in the Indo‐Myanmar Ranges are the southern continuation of the Neotethyan ophiolites occurring along the Yarlung Zangbo Suture Zone in southern Tibet farther northwes, as indicated by their coeval crystallization ages and geochemical compositions. The Kalaymyo ophiolite is located in the central part of the Indo‐Myanmar Ranges (Myanmar). The Kalaymyo ophiolite are composed of olivine (Fo = 89.8–90.5), orthopyroxene (En86‐91Wo1‐4Fs8‐10; Mg#=89.6–91.9), clinopyroxene (En46‐49Wo47‐50Fs3‐5; Mg# = 90.9–93.6) and spinel (Mg# = 67.1–78.9; Cr# = 13.5–31.5), and have relatively homogeneous whole‐rock compositions with Mg# of 90.1–90.8 and SiO2 (41.5–43.65 wt.%), Al2O3 (1.66–2.66 wt.%) and CaO (1.45–2.67 wt.%) contents. They display Light Rare Earth Element (LREE)‐depleted chondrite‐normalized REE patterns and show a slight enrichment from Pr to La. The Kalaymyo peridotites are characterized by Pd‐enriched chondrite‐normalized PGE patterns with superchondritic (Pd/Ir)CN ratios (1.15–2.36). Their calculated oxygen fugacities range between QFM–0.57 and QFM+0.90. These features collectively suggest that the Kalaymyo peridotites represent residual upper mantle rocks after low to moderate degrees (5–15%) of partial melting at a mid‐ocean‐ridge environment. The observed enrichment in LREE and Pd was a result of their reactions with enriched MORB‐like melts, percolating through these already depleted, residual peridotites. The Kalaymyo and other ophiolites in the Indo‐Myanmar Ranges hence represent mid‐ocean ridge–type Tethyan oceanic lithosphere derived from a downgoing plate and accreted into a westward migrating subduction–accretion system along the eastern margin of India.
Unusual Uranium‐rich Fluid Flow During Exhumation of Deeply Subducted Continental Crust
Authors: SHENG Yingming 
Published: May 2019

AbstractIn‐situ SIMS analyses of O and U‐Pb isotopes were carried out for zircons from a quartz vein hosted by ultrahigh‐pressure metagranite (UHP) in the Dabie orogen. The results are integrated to decipher the property of unusual U‐rich aqueous fluids and their effects on both metamorphic and magmatic zircons during exhumation of the UHP metagranite. In CL images, most zircon grains show distinct core‐rim structures. Relict cores are bright and exhibit oscillatory or patchy zonation, giving Neoproterozoic upper‐intercept ages of 795 ± 26 Ma. Newly grown rims are dark and exhibit no zoning, yielding Triassic concordant ages of 215 ± 5 Ma. The cores give Th contents of 59 to 463 ppm and U contents of 98 to 558 ppm, with Th/U ratios of 0.263 to 1.423. The rims yield reduced Th contents of 11 to 124 ppm but significantly elevated U contents of 1051 to 3531 ppm, with Th/U ratios of 0.010 to 0.035. Comparison with the cores of magmatic origin, the unusual enrichment in U but depletion in Th in the rims of metamorphic origin are interpreted as zircon growth from Cl‐rich oxidized vein‐forming aqueous fluids that were produced by dehydration reactions of the wallrock during continental exhumation. The cores have variably positive δ18O values with concordant or discordant Neoproterozoic U‐Pb ages, suggesting their solid‐state modification of both O and U‐Pb isotopes through interaction with the fluids. The rims yield negative δ18O values, indicating their growth from the negative δ18O fluids. Taken together, the proposed Cl‐rich oxidized negative‐δ18O vein‐forming aqueous fluids have such an ability to not only cause variable metamorphic recrystallization in the relict magmatic zircons but also produce dramatic fractionation of U over Th in the metamorphic zircons during quartz veining, and potentially impact on the overlain metasomatite in the mantle wedge.
Diamond‐bearing Occurrences of the Ural‐Timan Fold Belt (Russia): The Result of Ultra‐deep Subduction?
Authors: SHMELEV Vladimir 
Published: May 2019

AbstractLarge deposits of diamonds are associated mainly with kimberlites (and related rocks) of the cratons, but they are also known in the folded belts surrounding them. As an example is the Baltica craton and the surrounding its the Ural‐Timan (UT) folded belt. With the first object are associated diamonds of the Arkhangelsk (kimberlites and placers) provinces, and with the second one ‐ mostly placer deposits of the UT province, the probable source of which are also kimberlites. The structural position, composition and age of the potentially diamond‐bearing complexes of the Urals and Timan make it possible to propose a new petrological‐geodynamic interpretation of their formation. According to this model, during the Vendian‐Cambrian subduction of the Pechora Ocean crust, several different depth complexes have been formed, being changed in the western direction. At a shallow depth level the oceanic crust subduction is accompanied only by fluid processing, without the magmatism participation. As a result, this process leads to the formation of fluidizate‐explosive rocks of the Sertynya complex, which marks the outlet of the ancient subduction zone into the surface. At a moderately deep (up to 100–150 km) level melts are being produced, the derivatives of which are not diamond‐bearing depleted kimberlites of the Khartes (V‐Cm) complex. Apparently by the beginning of the Ordovician the active subduction of the Pechora Ocean stops. It occurs an opening of a new Ural paleoocean, and the earlier submerged the oceanic slab continues moving under the Baltica craton. At a deep (above 150 km) level the slab interaction with the mantle produces typical kimberlite magmas (from the Ordovician to the Middle Devonian) transporting diamonds to the surface of the Ural‐Timan province proper.
High‐ and low‐Cr chromitite in a Tibetan Ophiolite: Evolution from Mature Subduction System to Incipient Forearc in the Neo‐Tethyan Ocean
Authors: XIONG Qing , ZHENG Jianping , GRIFFIN William , O'REILLY Suzanne 
Published: May 2019

AbstractThe microstructures, major‐ and trace‐element compositions of minerals and electron backscattered diffraction (EBSD) maps of high‐ and low‐Cr# [spinel Cr# = Cr3+/(Cr3++Al3+)] chromitites and dunites from the Zedang ophiolite in the Yarlung Zangbo Suture (South Tibet) have been used to reveal their genesis and the related geodynamic processes in the Neo‐Tethyan Ocean. The high‐Cr# (0.77‐0.80) chromitites (with or without diopside exsolution) have chromite compositions consistent with initial crystallization by interaction between boninitic magmas, harzburgite and reaction‐produced magmas in a shallow, mature mantle wedge. Some high‐Cr# chromitites show crystal‐plastic deformation and grain growth on previous chromite relics that have exsolved needles of diopside. These features are similar to those of the Luobusa high‐Cr# chromitites, possibly recycled from the deep upper mantle in a mature subduction system. In contrast, mineralogical, chemical and EBSD features of the Zedang low‐Cr# (0.49‐0.67) chromitites and dunites and the silicate inclusions in chromite indicate that they formed by rapid interaction between forearc basaltic magmas (MORB‐like but with rare subduction input) and the Zedang harzburgites in a dynamically extended, incipient forearc lithosphere. The evidence implies that the high‐Cr# chromitites were produced or emplaced in an earlier mature arc (possibly Jurassic), while the low‐Cr# associations formed in an incipient forearc during the initiation of a new episode of Neo‐Tethyan subduction at ∼130‐120 Ma. This two‐episode subduction model can provide a new explanation for the coexistence of high‐ and low‐Cr# chromitites in the same volume of ophiolitic mantle.
Iron Isotopic Compositions of Forearc Mantle Peridotites Constrained by Ophiolites from the North Qilian Orogen, Northern Tibet
Authors: ZHANG Long , SUN Weidong , AN Yajun , LIU Fang , ZHANG Zhaofeng 
Published: May 2019

AbstractPrevious studies on iron isotope compositions of subduction zone magmas have revealed significant and complex variations that have great bearings on petrogenetic processes in the mantle wedge, e.g., partial melting, fluid metasomatism and redox state. However, interpretations for the fractionations are highly debatable and lack direct constraints from mantle wedge peridotites. This study presents iron isotope compositions for whole rocks and mineral separates in fresh forearc peridotites from the Yushigou ophiolite, North Qilian orogen in northern Tibet. Major and trace element compositions of whole rock and mineral indicate that the peridotites are highly depleted forearc peridotites overprinted by melt metasomatism, in contrast to the long‐holding opinion that the peridotites are derived from mid‐oceanic ridges. The minerals fall on a line with a slope of ∼1 on the plot of δ56Fe vs. δ56Fe, indicating isotope equilibrium between minerals. δ56Fe fractionation between olivine and orthopyroxene is within the range of 0∼0.05, while fractionation between olivine and spinel is about 0.05∼0.10. The fractionation trend between olivine and spinel is opposite to previous theoretical and experimental constraints, which may be due to substantial Cr substitution into the spinel. This indicates that negative correlations between spinel Cr#, fO2 and spinel δ56Fe in previous studies are probably a reflection of gradual Cr enrichment in spinel during melt extraction, and spinel δ56Fe values are not a proxy for oxygen fugacity. Whole rock δ56Fe values are well correlated with mineral δ56Fe values, varying from overlapping with depleted mantle to slightly lower than depleted mantle. Therefore, variations in iron isotope compositions of subduction zone magmas are probably due to combined effect of source heterogeneity and partial melting fractionation.