bluuebunny/crossref_metadata_2025_split huggingface dataset:
Social media social comparison and identity distress at the college transition: A dual‐path model
Authors: Yang Chia‐chen , Holden Sean M. , Carter Mollie D.K. , Webb Jessica J. 
Published: October 2018

ABSTRACTIntroductionSocial media provide a convenient platform for social comparison, an activity that should play an important role in youth's identity development at the transition to college. Yet, the identity implications of online social comparison have not been thoroughly explored. Drawing on the theories of social comparison, introspective processes, and identity distress, we examined a dual‐path model. The paths from two types of social media social comparison (i.e., comparison of ability and comparison of opinion) to two introspective processes (i.e., rumination and reflection) and finally to identity distress were tested.MethodsShort‐term longitudinal survey data were collected from 219 college freshmen at a state university in the United States of America (Mage = 18.29, S.D. = 0.75; 74% female; 41% White, 38% Black).ResultsSocial comparison of ability on social media had a positive association with concurrent rumination, which predicted higher identity distress. In contrast, social comparison of opinion on social media had a positive relationship with concurrent reflection, which, however, did not predict identity distress.ConclusionResults indicate that different types of online social comparison yield distinct implications for young people's identity development. Largely, the study reaffirms the recently rising call for distinguishing the competition‐based social comparison of ability from the information‐based social comparison of opinion. At the same time, the study expands current knowledge of why these forms of social comparison may lead to differential outcomes, namely through the type of introspection they induce.
Characteristics and sources of dissolved organic matter in a glacier in the northern Tibetan Plateau: differences between different snow categories
Authors: Feng Lin , An Yanqing , Xu Jianzhong , Kang Shichang 
Published: October 2018

AbstractDissolved organic matter (DOM) in mountain glaciers is an important source of carbon for downstream aquatic systems, and its impact is expected to increase due to the increased melting rate of glaciers. We present a comprehensive study of Laohugou glacier no. 12 (LHG) at the northern edge of the Tibetan Plateau to characterize the DOM composition and sources by analyzing surface fresh snow, granular ice samples, and snow pit samples which covered a whole year cycle of 2014/15. Excitation–emission matrix fluorescence spectroscopy analysis of the DOM with parallel factor analysis (EEM-PARAFAC) identified four components, including a microbially humic-like component (C1), two protein-like components (C2 and C3) and a terrestrial humic-like component (C4). The use of Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) showed that DOM from all these samples was dominated by CHO and CHON molecular formulas, mainly corresponding to lipids and aliphatic/proteins compounds, reflecting the presence of significant amounts of microbially derived and/or deposited biogenic DOM. The molecular compositions of DOM showed more CHON compounds in granular ice than in fresh snow, likely suggesting newly formed DOM from microbes during snowmelting.
How frequently are hospitalized patients colonized with carbapenem-resistant Enterobacteriaceae (CRE) already on contact precautions for other indications?
Authors: Goodman Katherine E. , Simner Patricia J. , Klein Eili Y. , Kazmi Abida Q. , Gadala Avinash , Rock Clare , Tamma Pranita D. , Cosgrove Sara E. , Maragakis Lisa L. , Milstone Aaron M. ,   for the CDC Prevention Epicenters Program,   the CDC MIND-Healthcare Program
Published: October 2018

AbstractUsing samples collected for VRE surveillance, we evaluated unit admission prevalence of carbapenem-resistant Enterobacteriaceae (CRE) perirectal colonization and whether CRE carriers (unknown to staff) were on contact precautions for other indications. CRE colonization at unit admission was infrequent (3.9%). Most CRE carriers were not on contact precautions, representing a reservoir for healthcare-associated CRE transmission.
Impact and implications of meltwater percolation on trace element records observed in a high-Alpine ice core
Authors: AVAK SVEN ERIK , SCHWIKOWSKI MARGIT , EICHLER ANJA 
Published: October 2018

ABSTRACTPast atmospheric pollution can be reconstructed from ice core trace element records retrieved from mountain glaciers. However, the current global temperature increase can result in post-depositional melt processes, significantly altering the originally stored information. Here, we present a comprehensive study on the behaviour of 35 trace elements (TEs) during meltwater percolation in a high-Alpine ice core segment from upper Grenzgletscher, Switzerland. Some TEs revealed significant concentration depletion, whereas others were well preserved depending on their water solubility and location at the grain scale. TEs present in insoluble minerals, typically enriched at grain boundaries, were found to be mostly preserved because their insolubility in water results in immobility with meltwater percolation. Water-soluble TEs revealed a variable meltwater-mobility. Whereas ultra-TEs tend to be preserved, likely due to incorporation into the ice lattice, abundant TEs are prone to relocation from grain-boundary regions. We propose that at Alpine sites, Ag, Al, Bi, Cu, Cs, Fe, Li, Mo, Pb, Rb, Sb, Th, Tl, U, V, W, Zr and the rare-earth elements may still be applicable as robust environmental proxies even if partial melting occurred, whereas Ba, Ca, Cd Co, Mg, Mn, Na, Ni, Sr and Zn are prone to significant depletion.
Marine Radiocarbon Reservoir Age Along the Chilean Continental Margin
Authors: Merino-Campos Víctor , De Pol-Holz Ricardo , Southon John , Latorre Claudio , Collado-Fabbri Silvana 
Published: October 2018

ABSTRACTWe present 37 new radiocarbon (14C) measurements from mollusk shells fragments sampled along the Chilean continental margin and stored in museum collections with known calendar age. These measurements were used to estimate the modern pre-bomb regional marine 14C age deviations from the global ocean reservoir (∆R). Together with previously published data, we calculated regional mean ∆R values for five oceanographic macro regions along the coast plus one for a mid-latitude open ocean setting. In general, upwelling regions north of 42ºS show consistent although sometimes highly variable ∆R values with regional averages ranging from 141 to 196 14C yr, whereas the mid-latitude open ocean location of the Juan Fernández archipelago and the southern Patagonian region show minor, ∆R of 40±38 14C yr, and 52±47 14C yr respectively. We attribute the alongshore decreasing pattern toward higher latitudes to the main oceanographic features along the Chilean coast such as perennial coastal upwelling in northern zone, seasonally variable upwelling at the central part and the large freshwater influence upon the southern Patagonian channels.
Spatiotemporal expression profiling of the farnesyl diphosphate synthase genes in aphids and analysis of their associations with the biosynthesis of alarm pheromone
Authors: Cheng Y.-J. , Li Z.-X. 
Published: October 2018

AbstractThe alarm behavior plays a key role in the ecology of aphids, but the site and molecular mechanism for the biosynthesis of aphid alarm pheromone are largely unknown. Farnesyl diphosphate synthase (FPPS) catalyzes the synthesis of FPP, providing the precursor for the alarm pheromone (E)-β-farnesene (EβF), and we speculate that FPPS is closely associated with the biosynthetic pathway of EβF. We firstly analyzed the spatiotemporal expression of FPPS genes by using quantitative reverse transcription-polymerase chain reaction, showing that they were expressed uninterruptedly from the embryonic stage to adult stage, with an obvious increasing trend from embryo to 4th-instar in the green peach aphid Myzus persicae, but FPPS1 had an overall significantly higher expression level than FPPS2; both FPPS1 and FPPS2 exhibited the highest expression in the cornicle area. This expression pattern was verified in Acyrthosiphon pisum, suggesting that FPPS1 may play a more important role in aphids and the cornicle area is most likely the site for EβF biosynthesis. We thus conducted a quantitative measurement of EβF in M. persicae by gas chromatography-mass spectrometry. The data obtained were used to perform an association analysis with the expression data, revealing that the content of EβF per aphid was significantly correlated with the mean weight per aphid (r = 0.8534, P = 0.0307) and the expression level of FPPS1 (r = 0.9134, P = 0.0109), but not with that of FPPS2 (r = 0.4113, P = 0.4179); the concentration of EβF per milligram of aphid was not correlated with the mean weight per aphid or the expression level of FPPS genes. These data suggest that FPPS1 may play a key role in the biosynthesis of aphid alarm pheromone.
When Is a Thing? Transduction and Immediacy in Afro-Cuban Ritual; or, ANT in Matanzas, Cuba, Summer of 1948
Authors: Palmié Stephan 
Published: October 2018

AbstractRevisiting William R. Bascom's 1948 ethnography of Afro-Cuban religious practices in Jovellanos (a semi-urban site in Cuba's Province of Matanzas) in light of current theoretical concerns in our discipline, this essay constitutes a thought experiment. As such it seeks to re-describe some of Bascom's data in terms of Actor-Network Theory, to see if his patent puzzlement over his interlocutors’ statements concerning the liveliness and even personhood of mineral objects—stones that embody, rather than represent deities—can be resolved that way. At the same time, I offer a critique of current attempts to redefine our discipline's mission under the sign of an “ontological turn” that recurs to notions of radical alterity that strike me as potentially essentialist, and certainly profoundly ahistorical. Drawing on Karen Barad's theories of “agential realism,” I suggest that contemporary concerns with post-humanist anti-representationalism need to be tempered by a view of our epistemic pursuits, including those of anthropology, as embedded in thoroughly historical—and so fundamentally emergent—ontologies. In light of such considerations, the essay concludes with a vision of anthropology as a form of knowledge that cannot afford to evade the historical transformations of the social worlds it aims to illuminate, nor those of the concurrent transformations in its own epistemic orientations. Instead, it must reframe its goals in terms of conjunctures of ontologies and epistemologies of mutually relational and, most importantly, historical scope.
From Idiophylaxis to Inner Armor: Imagining the Self-Armoring Soldier in the United States Military from the 1960s to Today
Authors: Bickford Andrew 
Published: October 2018

AbstractAll militaries try to develop a “winning edge” in warfare. More often than not these attempts focus on new weapons systems and weapons platforms, on new ways of maximizing the offensive capabilities of a military through firepower. These attempts can also involve the training and development of soldiers, including performance enhancements to make them fight better, longer, and smarter than the enemy and to counter human frailty on the battlefield. These concerns and problems have long held the interest of the U.S. military. This article traces the development, rationale, and legacy of one such attempt to deal with human frailty and the “body problem,” a kind of military futurism devised at the peak of the Cold War. Dr. Marion Sulzberger envisioned creating soldiers who had their own kind of special “biological armor,” or what he termed “idiophylaxis.” In 1962, he presented a paper at the Army Science Conference at West Point titled “Progress and Prospects in Idiophylaxis (Built-In Individual Self-Protection of the Combat Soldier).” Sulzberger's call was for a radical rethinking of the combat soldier and the ways in which soldiers were imagined, designed, and developed. His goal was to “armor” the individual soldier both internally and psychologically through new forms of biomedicine and biotechnology. The interventions he detailed in 1962 live on today in the U.S. military's soldier performance enhancement research programs, including DARPA's recent “Inner Armor” program and desire to make “kill-proof” soldiers.
Building Scotland, Building Solidarity: A Scottish Architect's Knowledge of Nation
Authors: Coleman Leo 
Published: October 2018

AbstractThis article examines the work of Robert Hurd (1905–1963), a Scottish nationalist architect, planner, and admirer of Scottish civic traditions, in order to query and enrich current anthropological approaches to “material politics” with their focus on material assemblies, infrastructures, and interactions that operate across scales and beyond discourse. Hurd was both an expert and planner and also an “artisan of nationalism” who sought to restore Scotland's built environment as at once a civic heritage and a material resource for a future of independence and self-determination. Hurd's attention to distinctively Scottish architectural forms and to historic centers and their development over time is significant as an idiom of nationalist thought, while his architectural work highlights the formal manipulation of scale and centrality to express political aspirations. He was an expert not only of infrastructure, plans, or populations and their needs, but also of the mediation of such material facts into architectural form and, in a broader sense, forms of life. Finally, Hurd's writing on “burgh” civic and architectural traditions, and his work as a conservation architect, together allow a better understanding of the role played by a conservative, tradition-minded modernism, and of narratives of tradition and national evolution, in the twentieth-century history and present development of Scotland's national and constitutional politics.
The Fabric of Transnational Political Activism: “Révolution Afrique” and West African Radical Militants in France in the 1970s
Authors: Dedieu Jean-Philippe , Mbodj-Pouye Aïssatou 
Published: October 2018

AbstractThis article locates itself at the intersection of the social history of postcolonial migrations and the intellectual history of leftism and Third-Worldism in the aftermath of May ’68. It is the first study of the radical political group Révolution Afrique. From 1972 until its ban by the French government in 1977, this organization forged by African and French activists mobilized against neocolonial ideologies and policies on both sides of the Mediterranean. By tracing the organization's rise and fall through extensive archival research and in-depth interviews, the article explores the changing meanings of transnational activism by weaving together the biographical paths of the activists, the institutional and political constraints they faced, and the ideological framework within which they operated. During this short time frame, the transnational agenda that made sense among African workers and students in the early 1970s became irrelevant. The increasing repression of political dissent in Africa and France, the suspension of migratory flows, and the French government's implementation of return policies in the late 1970s forced the group's African activists to adopt a more national approach to their actions, or simply withdraw from high-risk activism. Despite the dissolution of Révolution Afrique, this collective endeavor appears to have been a unique experience of political education for African activists, transcending distinct social and national boundaries that until now have been left unexamined by social scientists specialized in the complex history of the relationships between France and Africa.
Malaria pigment accelerates MTT – formazan exocytosis in human endothelial cells
Authors: D'Alessandro Sarah , Corbett Yolanda , Parapini Silvia , Perego Federica , Cavicchini Loredana , Signorini Lucia , Delbue Serena , Perego Carla , Ferrante Pasquale , Taramelli Donatella , Basilico Nicoletta 
Published: October 2018

AbstractHaemozoin is a by-product of haemoglobin digestion by intraerythrocytic malaria parasites, which induces immunologic responses on different tissues, including endothelial cells. In the present paper, the incubation of human microvascular endothelial cells with haemozoin significantly inhibited MTT reduction, a measure of cytotoxicity, without increasing the release of cytoplasmic lactate dehydrogenase. Moreover, haemozoin did not induce apoptosis or cell cycle arrest nor decreased the number of live cells, suggesting that cells viability itself was not affected and that the inhibition of MTT reduction was only apparent and probably due to accelerated MTT-formazan exocytosis. After 30 min of MTT addition, a significant increase in the % of cells exocytosing MTT formazan crystals was observed in haemozoin-treated cells compared with control cells. Such an effect was partially reversed by the addition of genistein, an inhibitor of MTT-formazan exocytosis. The rapid release of CXCL-8, a preformed chemokine contained in Weibel–Palade bodies, confirmed that haemozoin induces a perturbation of the intracellular endothelial trafficking, including the exocytosis of MTT-formazan containing vesicles. The haem moiety of haemozoin is responsible for the observed effect. Moreover, this work underlines that MTT assay should not be used to measure cytotoxicity induced by haemozoin and other methods should be preferred.
Accurate identification of Australian mosquitoes using protein profiling
Authors: Lawrence Andrea L. , Batovska Jana , Webb Cameron E. , Lynch Stacey E. , Blacket Mark J. , Šlapeta Jan , Parola Philippe , Laroche Maureen 
Published: October 2018

AbstractAustralian mosquito species significantly impact human health through nuisance biting and the transmission of endemic and exotic pathogens. Surveillance programmes designed to provide an early warning of mosquito-borne disease risk require reliable identification of mosquitoes. This study aimed to investigate the viability of Matrix-Assisted Laser Desorption/Ionization–Time-of-Flight Mass Spectrometry (MALDI-TOF MS) as a rapid and inexpensive approach to the identification of Australian mosquitoes and was validated using a three-step taxonomic approach. A total of 300 mosquitoes representing 21 species were collected from south-eastern New South Wales and morphologically identified. The legs from the mosquitoes were removed and subjected to MALDI-TOF MS analysis. Fifty-eight mosquitoes were sequenced at the cytochrome c oxidase subunit I (cox1) gene region and genetic relationships were analysed. We create the first MALDI-TOF MS spectra database of Australian mosquito species including 19 species. We clearly demonstrate the accuracy of MALDI-TOF MS for identification of Australian mosquitoes. It is especially useful for assessing gaps in the effectiveness of DNA barcoding by differentiating closely related taxa. Indeed, cox1 DNA barcoding was not able to differentiate members of the Culex pipiens group, Cx. quinquefasciatus and Cx. pipiens molestus, but these specimens were correctly identified using MALDI-TOF MS.
Meaning-centered psychotherapy integrated with elements of compassion: A pilot study to assess feasibility and utility
Authors: Gil Francisco , Fraguell Clara , Benito Llúcia , Casellas-Grau Anna , Limonero Joaquin T. 
Published: October 2018

AbstractObjectiveThe main objective of this study is to establish emotional benefits of promoting and maintaining meaning in palliative care patients in the final weeks of life and to assess the benefits of including the compassion and self-compassion constructs in the Meaning-Centered Psychotherapy Model (MCP).MethodFifty-one cancer inpatients were randomly assigned to one of the three brief interventions for cancer patients in the end of life: the MCP-palliative care version, the MCP-compassionate palliative care (MCP-CPC), or standard counseling. Feasibility, acceptability, and utility were assessed in each condition. Likewise, patients’ opinions about the effectiveness of interventions’ elements were also collected.ResultOf the 51 patients that began one of the three interventions, 30 completed the three-session interventional program, as well as the pre- and posttreatment questionnaires. No significant differences were found between therapies in terms of the positive feedback of patients regarding the structure, focus, and length of the all three psychotherapeutic interventions. The most helpful elements or constructs reported by patients were meaning, self-compassion, compassion, legacy, and courage and commitment.Significance of resultsAn abbreviated version of MCP-CPC tailored to the needs of palliative care patients appears to be feasible, acceptable, and helps patients cope with the process of dying. Further research in bigger samples is needed to establish evidence for the feasibility, acceptability, and utility of a brief MCP-CPC for palliative care patients in their last weeks of life. More proposals of further elements are also needed to improve the results. Such research can create or refine previous treatment approaches which improve the quality of life and psychological distress in patients with advanced cancer.
Leaf Trait Acclimation Amplifies Simulated Climate Warming in Response to Elevated Carbon Dioxide
Authors: Kovenock Marlies , Swann Abigail L. S. 
Published: October 2018

AbstractVegetation modifies Earth's climate by controlling the fluxes of energy, carbon, and water. Of critical importance is a better understanding of how vegetation responses to climate change will feedback on climate. Observations show that plant traits respond to elevated carbon dioxide concentrations. These plant trait acclimations can alter leaf area and, thus, productivity and surface energy fluxes. Yet the climate impacts of plant structural trait acclimations remain to be tested and quantified. Here we show that one leaf trait acclimation in response to elevated carbon dioxide—a one‐third increase in leaf mass per area—significantly impacts climate and carbon cycling in Earth system model experiments. Global net primary productivity decreases (−5.8 PgC/year, 95% confidence interval [CI95%] −5.5 to −6.0), representing a decreased carbon dioxide sink of similar magnitude to current annual fossil fuel emissions (8 PgC/year). Additional anomalous terrestrial warming (+0.3 °C globally, CI95% 0.2 to 0.4), especially of the northern extratropics (+0.4 °C, CI95% 0.2 to 0.5), results from reduced evapotranspiration and enhanced absorption of solar radiation at the surface. Leaf trait acclimation drives declines in productivity and evapotranspiration by reducing leaf area growth in response to elevated carbon dioxide, as a one‐third increase in leaf mass per area raises the cost of building leaf area and productivity fails to fully compensate. Our results suggest that plant trait acclimations, such as changing leaf mass per area, should be considered in climate projections and provide additional motivation for ecological and physiological experiments that determine plant responses to environment.