bluuebunny/crossref_metadata_2025_split huggingface dataset:
Noninfectious Hospital Adverse Events Decline After Elimination of Contact Precautions for MRSA and VRE
Authors: Martin Elise M. , Bryant Brandy , Grogan Tristan R. , Rubin Zachary A. , Russell Dana L. , Elashoff David , Uslan Daniel Z. 
Published: May 2018

OBJECTIVETo evaluate the impact of discontinuing routine contact precautions (CP) for endemic methicillin-resistantStaphylococcus aureus(MRSA) and vancomycin-resistantEnterococcus(VRE) on hospital adverse events.DESIGNRetrospective, nonrandomized, observational, quasi-experimental study.SETTINGAcademic medical center with single-occupancy rooms.PARTICIPANTSInpatients.METHODSWe compared hospital reportable adverse events 1 year before and 1 year after discontinuation of routine CP for endemic MRSA and VRE (preintervention and postintervention periods, respectively). Throughout the preintervention period, daily chlorhexidine gluconate bathing was expanded to nearly all inpatients. Chart reviews were performed to identify which patients and events were associated with CP for MRSA/VRE in the preintervention period as well as the patients that would have met prior criteria for MRSA/VRE CP but were not isolated in the postintervention period. Adverse events during the 2 periods were compared using segmented and mixed-effects Poisson regression models.RESULTSThere were 24,732 admissions in the preintervention period and 25,536 in the postintervention period. Noninfectious adverse events (ie, postoperative respiratory failure, hemorrhage/hematoma, thrombosis, wound dehiscence, pressure ulcers, and falls or trauma) decreased by 19% (12.3 to 10.0 per 1,000 admissions,P=.022) from the preintervention to the postintervention period. There was no significant difference in the rate of infectious adverse events after CP discontinuation (20.7 to 19.4 per 1,000 admissions,P=.33). Patients with MRSA/VRE showed the largest reduction in noninfectious adverse events after CP discontinuation, with a 72% reduction (21.4 to 6.08 per 1,000 MRSA/VRE admissions;P&lt;.001).CONCLUSIONAfter discontinuing routine CP for endemic MRSA/VRE, the rate of noninfectious adverse events declined, especially in patients who no longer required isolation. This suggests that elimination of CP may substantially reduce noninfectious adverse events.Infect Control Hosp Epidemiol2018;788–796
Periodically driven Taylor–Couette turbulence
Authors: Verschoof Ruben A. , te Nijenhuis Arne K. , Huisman Sander G. , Sun Chao , Lohse Detlef 
Published: May 2018

We study periodically driven Taylor–Couette turbulence, i.e. the flow confined between two concentric, independently rotating cylinders. Here, the inner cylinder is driven sinusoidally while the outer cylinder is kept at rest (time-averaged Reynolds number is $Re_{i}=5\times 10^{5}$). Using particle image velocimetry, we measure the velocity over a wide range of modulation periods, corresponding to a change in Womersley number in the range $15\leqslant Wo\leqslant 114$. To understand how the flow responds to a given modulation, we calculate the phase delay and amplitude response of the azimuthal velocity. In agreement with earlier theoretical and numerical work, we find that for large modulation periods the system follows the given modulation of the driving, i.e. the behaviour of the system is quasi-stationary. For smaller modulation periods, the flow cannot follow the modulation, and the flow velocity responds with a phase delay and a smaller amplitude response to the given modulation. If we compare our results with numerical and theoretical results for the laminar case, we find that the scalings of the phase delay and the amplitude response are similar. However, the local response in the bulk of the flow is independent of the distance to the modulated boundary. Apparently, the turbulent mixing is strong enough to prevent the flow from having radius-dependent responses to the given modulation.
Temporal stability of free liquid threads with surface viscoelasticity
Authors: Martínez-Calvo A. , Sevilla A. 
Published: May 2018

We analyse the effect of surface viscoelasticity on the temporal stability of a free cylindrical liquid jet coated with insoluble surfactant, extending the results of Timmermans & Lister (J. Fluid Mech., vol. 459, 2002, pp. 289–306). Our development requires, in particular, deriving the correct expressions for the normal and tangential stress boundary conditions at a general axisymmetric interface when surface viscosity is modelled with the Boussinesq–Scriven constitutive equation. These stress conditions are applied to obtain a new dispersion relation for the liquid thread, which is solved to describe its temporal stability as a function of four governing parameters, namely the capillary Reynolds number, the elasticity parameter, and the shear and dilatational Boussinesq numbers. It is shown that both surface viscosities have a stabilising influence for all values of the capillary Reynolds number and elasticity parameter, the effect being more pronounced at low capillary Reynolds numbers. The wavenumber of maximum amplification depends non-monotonically on the Boussinesq numbers, especially for very viscous threads at low values of the elasticity parameter. Finally, two different lubrication approximations of the equations of motion are derived. While the validity of the leading-order model is limited to small enough values of the elasticity parameter and of the Boussinesq numbers, a higher-order parabolic model is able to accurately capture the linearised behaviour for the whole range of values of the four control parameters.
Courage in the workplace: The effects of organizational level and gender on the relationship between behavioral courage and job performance
Authors: Tkachenko Oleksandr , Quast Louis N. , Song Wei , Jang Soebin 
Published: May 2018

AbstractThis study examines the relationship between behavioral courage and job performance, and explores the possible effects of organizational level and gender on this relationship. With a sample of managers from mid- to large-sized for-profit organizations in the United States, we found that behavioral courage was positively associated with job performance. Our results also revealed significant differences in supervisors’ ratings of behavioral courage between employees at low and high organizational levels. The effects of behavioral courage on job performance did not vary by organizational level. In turn, the moderating effect of gender on the association between behavioral courage and job performance was supported. The study results provide important theoretical and practical implications in the fields of organizational behavior, leadership studies, and human resource development. Recommendations for future research are discussed.
LABOR-TIME: ECOLOGICAL BODIES AND AGRICULTURAL LABOR IN 19TH- AND EARLY 20TH-CENTURY EGYPT
Authors: Derr Jennifer L. 
Published: May 2018

AbstractBeginning in the second decade of the 19th century, Egyptian agriculture began a process of transformation from basin to perennial irrigation. This shift facilitated the practice of year-round agriculture and the cultivation of summer crops including cotton whose temporalities did not match that of the annual Nile flood. One facet of the perennially irrigated landscape was an increase in the prevalence of the parasitic diseases bilharzia (schistosomiasis) and hookworm, the symptoms of which came to constitute normative experiences of the body among those engaged in perennially irrigated agriculture. Male agricultural laborers, who most often performed the work of irrigation, were at the greatest risk of infection. This article considers the significance of agricultural labor in the continuous making and maintenance of perennially irrigated agriculture and the role of parasitic disease in producing temporal experiences of this labor.
THE ORIGINAL ARABS: THE INVENTION OF THE “BEDOUIN RACE” IN OTTOMAN PALESTINE
Authors: Assi Seraj 
Published: May 2018

AbstractThis article examines the symbiotic relationship between race and empire in British ethnographic discourse on the Arabs of Palestine. Drawing on the works of British explorers in late Ottoman Palestine, I show how native Palestinian Bedouin came to be viewed as a separate race within a hierarchy of Arab races, and how within this racial reconfiguration the Bedouin embodied not only an ideal model of racial purity, but also a racial archetype on which Arabness itself was measured, codified, and reproduced.
MINISKIRTS AND “BEATNIKS”: GENDER ROLES, NATIONAL DEVELOPMENT, AND MORALS IN 1960S TUNISIA
Authors: Kallander Amy Aisen 
Published: May 2018

AbstractIn the decade following independence, the Tunisian state embraced secular feminism as part of the single-party monopoly on political life and economic development. Yet its celebration of new family laws as an aspect of modernization was marred by anxieties about the sexual and moral implications of modern womanhood. Tracing references to the miniskirt in presidential speeches and the women's press, I demonstrate how efforts to delineate the boundaries of proper appearance gave tangible form to the amorphous question of morality. Parallel concerns about long-haired youth further indicated the bourgeois basis of the modernizing visual aesthetic as it restrained young men. Through fashion, urban educated women utilized the press to negotiate the limits of the more politically sensitive topic of state feminism. Middle-class debates about dress reveal that nationalist secular feminists who benefitted from the state's definition of women's rights questioned hegemonic conceptions of womanhood and articulated alternate versions of masculinity.
Defending Hierarchy from the Moon to the Indian Ocean: Symbolic Capital and Political Dominance in Early Modern China and the Cold War
Authors: Musgrave Paul , Nexon Daniel H. 
Published: May 2018

AbstractWhy do leading actors invest in costly projects that they expect will not yield appreciable military or economic benefits? We identify a causal process in which concerns about legitimacy produce attempts to secure dominance in arenas of high symbolic value by investing wealth and labor into unproductive (in direct military and economic terms) goods and performances. We provide evidence for our claims through a comparative study of the American Project Apollo and the Ming Dynasty's treasure fleets. We locate our argument within a broader constructivist and practice-theoretic understanding of hierarchy and hegemony. We build on claims that world politics is a sphere of complex social stratification by viewing constituent hierarchies in terms of social fields. Our specific theory and broader framework, we contend, provide tools for understanding the workings of power politics beyond military and economic competition.
Does dietary nitrate say NO to cardiovascular ageing? Current evidence and implications for research
Authors: Siervo Mario , Scialò Filippo , Shannon Oliver M. , Stephan Blossom C.M. , Ashor Ammar W. 
Published: May 2018

CVD are characterised by a multi-factorial pathogenesis. Key pathogenetic steps in the development of CVD are the occurrence of endothelial dysfunction and formation of atherosclerotic lesions. Reduced nitric oxide (NO) bioavailability is a primary event in the initiation of the atherosclerotic cascade. NO is a free radical with multiple physiological functions including the regulation of vascular resistance, coagulation, immunity and oxidative metabolism. The synthesis of NO proceeds via two distinct pathways identified as enzymatic and non-enzymatic. The former involves the conversion of arginine into NO by the NO synthases, whilst the latter comprises a two-step reducing process converting inorganic nitrate $({\rm NO}_3^ - )$ into nitrite and subsequently NO.Inorganic ${\rm NO}_3^ - $ is present in water and food, particularly beetroot and green leafy vegetables. Several investigations have therefore used the non-enzymatic NO pathway as a target for nutritional supplementation (${\rm NO}_3^ - $ salts) or dietary interventions (high-${\rm NO}_3^ - $ foods) to increase NO bioavailability and impact on cardiovascular outcomes. Some studies have reported positive effects of dietary ${\rm NO}_3^ - $ on systolic blood pressure and endothelial function in patients with hypertension and chronic heart failure. Nevertheless, results have been inconsistent and the size of the effect appears to be declining in older individuals. Additionally, there is a paucity of studies for disorders such as diabetes, CHD and chronic kidney failure. Thus, whilst dietary ${\rm NO}_3^ - $ supplementation could represent an effective and viable strategy for the primary and secondary prevention of age-related cardiovascular and metabolic diseases, more large-scale, robust studies are awaited to confirm or refute this notion.
User Participation Policies in Norway and England – the Case of Older People and Social Care
Authors: CHRISTENSEN KAREN , PILLING DORIA 
Published: May 2018

AbstractUser participation has become one of the most important concepts in the social care sector in many European countries, but the literature has mostly paid attention to disabled people or those with mental health problems. This article compares the user participation policies directed at social care for older people in Norway and England. Using a discourse analytical approach, a selection primarily of White papers from the 1960s until today are analysed. The analysis draws on the literature's discourse discussion, including a democratic/rights based discourse (full citizenship), a consumer discourse (consumers’ rights to choose welfare services), a co-production discourse (users and state/local authorities partnerships), and nuances of these discourses. The analysis shows that, while both countries start with variations of a democratic discourse, Norway develops a temporary and weak consumer discourse in a middle phase, then moves to co-production in current times. England, on the other hand, develops a comprehensive consumer discourse but also a surprisingly strong co-production discourse – the idea of a ‘Big Society’ – in early and current times.
Effectiveness of different interventions in public nurseries based on food and nutrition education: promoting breast-feeding and healthy complementary feeding
Authors: Cândido Naiara Abrantes , de Sousa Taciana Maia , dos Santos Luana Caroline 
Published: May 2018

AbstractObjectiveFood practices in the early years of life are important to form healthy eating habits; therefore, it is essential for the caregivers of infants to receive appropriate guidance. The present study aimed to investigate the effectiveness of different nutritional interventions on complementary feeding practices in municipal nurseries.DesignNon-randomized controlled intervention study with education professionals and parents of infants (<2 years). Participants were divided into: control group (CG), standard food and nutrition education in writing; and intervention group (IG), the same information as the CG and face-to-face meetings (professionals, 8 h; parents, 5 h). Changes in professionals’ knowledge on the subject and alterations in parents’ beliefs, attitudes and intentions were assessed using questionnaires before and after the educational activities.SettingTen public nurseries in Nova Lima, Belo Horizonte, Minas Gerais, Brazil, 2015.SubjectsNinety professionals (fifty in CG; forty in IG) and 169 parents (ninety-seven in CG; seventy-two in IG).ResultsAfter the intervention, there was a significant increase in the mean number of correct responses given by professionals in the IG (12·2 v. 10·7; P=0·001). In addition, there were improvements among the parents of the IG in relation to beliefs (soups and broths do not nourish my child: P=0·012), attitudes (offer meat from the sixth month: P=0·032) and intentions (do not offer soups and broths: P=0·003; offer vegetables: P=0·018; offer meat: P<0·001).ConclusionsFace-to-face nutritional intervention had a significantly greater effect on the parameters evaluated, indicating the importance of adequate guidance in childcare services to support the introduction of complementary feeding.
The nutrition transition in Mexico 1988–2016: the role of wealth in the social patterning of obesity by education
Authors: Pérez-Ferrer Carolina , McMunn Anne , Zaninotto Paola , Brunner Eric J 
Published: May 2018

AbstractObjectiveThe present study investigates whether the reversal of the social gradient in obesity, defined as a cross-over to higher obesity prevalence among groups with lower education level, has occurred among men and women in urban and rural areas of Mexico.DesignCross-sectional series of nationally representative surveys (1988, 1999, 2006, 2012 and 2016). The association between education and obesity was investigated over the period 1988–2016. Effect modification of the education–obesity association by household wealth was tested.SettingMexico.SubjectsWomen (n 54 816) and men (n 20 589) aged 20–49 years.ResultsIn both urban and rural areas, the association between education and obesity in women varied by level of household wealth in the earlier surveys (1988, 1999 and 2006; interaction P<0·001). In urban areas in 1988, one level lower education was associated (prevalence ratio; 95 % CI) with 45 % higher obesity prevalence among the richest women (1·45; 1·24, 1·69), whereas among the poorest the same education difference was protective (0·84; 0·72, 0·99). In the latest surveys (2012, 2016), higher education was protective across all wealth groups. Among men, education level was not associated with obesity in urban areas; there was a direct association in rural areas. Wealth did not modify the association between education and obesity.ConclusionThe reversal of the educational gradient in obesity among women occurred once a threshold level of household wealth was reached. Among men, there was no evidence of a reversal of the gradient. Policies must not lose sight of the populations most vulnerable to the obesogenic environment.
Zonally Varying ITCZs in a Matsuno‐Gill‐Type Model With an Idealized Bjerknes Feedback
Authors: Adam Ori 
Published: May 2018

AbstractIn the present climate, tropical rain bands exhibit a bifurcated pattern, continuously forming along single intertropical convergence zones (ITCZs) in some regions, and along double ITCZs that straddle the equator in other regions. This bifurcated ITCZ pattern is studied in a Matsuno‐Gill‐type model forced by relaxation to zonally asymmetric surface pressure. The model includes an idealized Bjerknes feedback which couples surface winds and sea surface temperatures (SSTs) via oceanic Ekman balance. Consistent with observations, solutions in the limit of strong damping are explored. Two ITCZ bifurcation mechanisms are identified. First, in the viscous limit, ITCZs form along negative anomalies of the local Rossby number, which tend to occur near the equator for equatorial low pressure and off the equator for equatorial high pressure; this leads to a single ITCZ in the rising branch of zonal‐overturning circulations and a double ITCZ that straddles the equator in the descending branch. Second, ocean upwelling produces an equatorial cold tongue with increased surface pressure, which reduces vertical winds and can lead to precipitation peaks that straddle the equator in regions of near‐equator ascent. Consistent with observations, the cold tongue intensifies with increasing zonal SST gradients, and its base widens with weakened poleward SST gradients, modulating the zonal orientation of the ITCZs on either side of the cold tongue. Analytic approximate solutions in the viscous limit capture the emergence of the bifurcated ITCZ pattern, as well as the dependence of the bifurcated ITCZ pattern on zonal and poleward SST gradients
Martian Thermospheric Response to an X8.2 Solar Flare on 10 September 2017 as Seen by MAVEN/IUVS
Authors: Jain S. K. , Deighan J. , Schneider N. M. , Stewart A. I. F. , Evans J. S. , Thiemann E. M. B. , Chaffin M. S. , Crismani M. , Stevens M. H. , Elrod M. K. , Stiepen A. , McClintock W. E. , Lo D. Y. , Clarke J. T. , Eparvier F. G. , Lefévre F. , Montmessin F. , Holsclaw G. M. , Chamberlin P. C. , Jakosky B. M. 
Published: May 2018

AbstractWe report the response of the Martian upper atmosphere to a strong X‐class flare on 10 September 2017 as observed by the Imaging Ultraviolet Spectrograph (IUVS) instrument aboard the Mars Atmosphere Volatile EvolutioN (MAVEN) mission. The solar flare peaked at 16:24 hr UT, and IUVS dayglow observations were taken about an hour after the flare peak. Retrieved temperatures from IUVS dayglow observations show a significant increase during the flare orbit, with a mean value of ∼270 K and a maximum value of ∼310 K. The retrieved temperatures during the flare orbit also show a strong latitudinal gradient, indicating that the flare‐induced heating is limited between low and middle latitudes. During this event IUVS observed an ∼70% increase in the observed brightness of CO
ultraviolet doublet and CO Cameron band emission at 90 km, where high‐energy photons (< 10 nm) deposit most of their energy.
Endogenous hepcidin synthesis protects the distal nephron against hemin and hemoglobin mediated necroptosis
Authors: van Swelm Rachel P. L. , Vos Madelon , Verhoeven Frank , Thévenod Frank , Swinkels Dorine W. 
Published: May 2018

AbstractHemoglobinuria is associated with kidney injury in various hemolytic pathologies. Currently, there is no treatment available and its pathophysiology is not completely understood. Here we studied the potential detrimental effects of hemoglobin (Hb) exposure to the distal nephron (DN). Involvement of the DN in Hb kidney injury was suggested by the induction of renal hepcidin synthesis (p < 0.001) in mice repeatedly injected with intravenous Hb. Moreover, the hepcidin induction was associated with a decline in urinary kidney injury markers 24p3/NGAL and KIM1, suggesting a role for hepcidin in protection against Hb kidney injury. We demonstrated that uptake of Hb in the mouse cortical collecting duct cells (mCCDcl1) is mediated by multi-protein ligand receptor 24p3R, as indicated by a significant 90% reduction in Hb uptake (p < 0.001) after 24p3R silencing. Moreover, incubation of mCCDcl1 cells with Hb or hemin for 4 or 24 h resulted in hepcidin synthesis and increased mRNA expression of markers for oxidative, inflammatory and ER stress, but no cell death as indicated by apoptosis staining. A protective role for cellular hepcidin against Hb-induced injury was demonstrated by aggravation of oxidative, inflammatory and ER stress after 4 h Hb or hemin incubation in hepcidin silenced mCCDcl1 cells. Hepcidin silencing potentiated hemin-mediated cell death that could be diminished by co-incubation of Nec-1, suggesting that endogenous hepcidin prevents necroptosis. Combined, these results demonstrate that renal hepcidin synthesis protects the DN against hemin and hemoglobin-mediated injury.