bluuebunny/crossref_metadata_2025_split huggingface dataset:
Shigella infection in children under 5 years old in western French Guiana
Authors: Parisot M. , Parez N. , Boukhari R. , Breurec S. , Jolivet A. 
Published: April 2018

AbstractFrench Guiana, a tropical country, is characterised by a young and multi-ethnic population. Difficulties in accessing safe water sources lead to outbreaks of gastroenteritis. The objectives of this study were (1) to describe the microbiological profile of shigella strains isolated in western French Guiana, including antimicrobial susceptibility and the distribution of strains in terms of species and serotypes and (2) to estimate the incidence of shigellosis in children under 5 years old. A retrospective observational study was conducted of 213 cases of shigellosis diagnosed in the biology department of the hospital centre for western French Guiana between 2000 and 2012 in children under 5 years old. The serogroups (formerly known as species) that predominates in French Guiana wasShigella flexneri. No resistance was observed to fluoroquinolones or to third-generation cephalosporins. The average incidence of shigellosis in children under 5 years old in western French Guiana was estimated at 189.6 cases per 100 000 inhabitants per year. Shigellosis is a public health problem in western French Guiana. These infections suggest the difficulties in accessing safe water sources and the lack of public sanitation. A quadrivalent vaccine containingShigella sonneiand three serotypes ofS. flexneri(S. flexneri2a, 3a and 6) could provide broad coverage against shigella infections.
Effect of storage temperature on dormancy release of sunflower (Helianthus annuus) achenes
Authors: Rodríguez María Verónica , Bodrone María Paula , Castellari María Paula , Batlla Diego 
Published: April 2018

AbstractPublished information regarding the effect of storage temperature on dormancy alleviation of sunflower achenes is contradictory and ambiguous. In the present study we explored the effect of temperature during dry storage on dormancy release in two sunflower genotypes, including a commercial hybrid and an inbred line. Dry storage at 25°C consistently accelerated dormancy release of achenes compared with 5°C. This response fits the general pattern reported for dry after-ripening in seeds of many other species. Depending on the genotype and the dormancy factor prevailing, higher temperature alleviated embryo dormancy and coat-imposed dormancy. Hormonal pathways involved in these changes were investigated at the physiological level. In both genotypes, sensitivity to abscisic acid (ABA) was reduced by storage at 25°C. Also, but only in one genotype, storage at 25°C reduced ABA levels upon imbibition and increased the response to a gibberellin (GA) synthesis inhibitor and to applied GA3, compared with storage at 5°C; these results support the idea that temperature affects both ABA and GA metabolism and signalling pathways during after-ripening. This information will be useful to define storage conditions for commercial sunflower achenes, and will also help focus future research on the underlying mechanisms of dormancy release during dry after-ripening in sunflower.
Artists and the city: mapping the art worlds of eighteenth-century Paris
Authors: WILLIAMS HANNAH 
Published: April 2018

ABSTRACT:Paris is renowned for artistic neighbourhoods like Montmartre and Montparnasse in the nineteenth and twentieth centuries. But for earlier periods, the art-historical picture is much vaguer. Where did artists live and work in the eighteenth century? Which neighbourhoods formed the cultural geography of the early modern art world? Drawing on data from a large-scale digital mapping project locating the addresses of hundreds of eighteenth-century artists, this article answers these crucial questions of urban art history. Following an overview of the digital project, the article explores three different mappings of the city's art worlds: a century long survey of the neighbourhoods inhabited by the Academy's artists; a comparison of where the Guild's artists were living in a single year and a wider world view of Parisian artists abroad. Through its new cartographic models of Paris's art worlds, this article brings the city to the foreground of eighteenth-century French art.
Cryoprotectant agents and cooling effect on embryos of Macrobrachium amazonicum
Authors: Lucas Caroline Costa , Melo Luana Rolim , de Sousa Míriam Luzia Nogueira Martins , de Morais Glayciane Bezerra , Martins Moisés Fernandes , Xavier Francisco Antônio Félix , Evangelista Janaina Serra Azul Monteiro , de Souza Sampaio Célia Maria 
Published: April 2018

SummaryThere are few reports of cryopreservation and injuries in Macrobrachium amazonicum embryos. Thus, the aim of this study was to analyze the effects of cryoprotectants agents and cooling on stage VIII of this species. Fertilized eggs from ovigerous females were removed from the incubation chamber, then placed in 10 ml Falcon tubes with a cryoprotectant solution and saline-free calcium solution. Thus, the embryos underwent a cooling curve of 1°C per min until reaching 5°C, and then were stored for 2 h. The tubes containing the embryos were washed to remove the cryoprotectant, acclimated for 5 min and then transferred to 50 ml incubators. At the end of the 24-h period, living embryos from each tube were counted and tabulated. A pool of embryos was fixed with 4% formaldehyde and then subjected to histology using 3-mm thick sections and stained with haematoxylin/eosin. Another pool was used for biometric analysis in which length, width and volume were analyzed. The cryoprotectants agents used were: dimethylsulfoxide (DMSO), methyl alcohol, ethylene glycol at 1, 5 and 10% and sucrose (0.5 M). Variance analysis was performed followed by Tukey's honest significant difference (HSD) test at 5% significance level. DMSO cryoprotectant affected embryo survival the least with rates of 71.8, 36.2 and 0% for concentrations of 1, 5 and 10%, respectively. Ethylene glycol caused 100% mortality at all the concentrations used. It was not possible to observe the interference of cooling and cryoprotectants on embryonic structures in this study.
Seasonal influenza among children diagnosed by their guardians: a small pilot study in Japan
Authors: Maita Hiroki , Kobayashi Tadashi , Osawa Hiroshi , Kato Hiroyuki 
Published: April 2018

AbstractAimWe aimed to elucidate the accuracy and optimal cut-off point of the self-diagnosis of influenza and the associated clinical symptoms of children by their guardians, compared with those of the rapid influenza diagnostic test (RIDT).BackgroundSeasonal influenza is a common outpatient problem during the winter season. A paediatric influenza epidemic has socio-economic impacts like temporary school closure, school event cancellations, and unscheduled work absences among parents. Hence, early identification and assessment of influenza to prevent its spread is important from a societal perspective.MethodWe performed a cross-sectional observational study in a rural clinic in Japan every winter season from December 2013 to March 2016. We retrospectively extracted information from the medical records and pre-examination checklists of 24 patients aged <12 years (mean age, 5.4 years; men, 54.2%). The data extracted from the medical records and pre-examination checklist included the baseline characteristics (age, sex and past medical history of influenza), clinical signs and symptoms, diagnosis by guardians (%) and RIDT results.FindingsThe optimal cut-off point of the self-diagnosis of influenza by guardians was 80%, with a sensitivity and specificity of 63.6% (95% confidence interval: 30.8–89.1) and 92.3% (64.0–99.8). At a 50% cut-off point, the sensitivity and specificity were 90.9% (58.7–99.8) and 53.8% (25.1−80.8). The accuracy of feeling severely sick, as estimated by the guardians showed a sensitivity and specificity of 90.9% (58.7–99.8) and 69.2% (38.6–90.9). Our study indicates that the diagnosis of seasonal influenza by guardians to their children would be useful in the establishment of both confirmatory diagnoses when it has high probability above the optimal cut-off point (80%), and exclusion diagnosis when it has low probability (50%). Not feeling severely sick, estimated by the guardians might be a useful indicator for the exclusion of paediatric influenza.
Team composition and chronic disease management within primary healthcare practices in eastern Ontario: an application of the Measuring Organizational Attributes of Primary Health Care Survey
Authors: Lukewich Julia , Edge Dana S. , VanDenKerkhof Elizabeth , Williamson Tyler , Tranmer Joan 
Published: April 2018

AbstractBackgroundVarious organizational-level attributes are being implemented in primary healthcare to improve healthcare delivery. There is a need to describe the distribution and nature of these attributes and explore differences across practices.AimThe aim of this study was to better understand organizational attributes of primary care teams, focusing specifically on team composition, nursing roles, and strategies that support chronic disease management.MethodsWe employed a cross-sectional survey design. Team composition, nursing roles, availability of health services, and chronic disease management activities were described using the ‘Measuring Organizational Attributes of Primary Health Care Survey.’FindingsA total of 76% (n=26 out of 34) of practice locations completed the survey, including family health teams (FHT; n=21) and community health centers (CHC; n=4). Nurse practitioners (NPs) and registered nurses (RNs) were the most common non-physician providers, and CHCs had a greater proportion of non-physician providers than FHTs. There was overlap in roles performed by NPs and RNs, and registered practical nurses engaged in fewer roles compared with NPs and RNs. A greater proportion of FHTs had systematic chronic disease management services for hypertension, depression and Alzheimer’s disease compared with CHC practices. The ‘Measuring Organizational Attributes of Primary Health Care Survey’ was a useful tool to highlight variability in organizational attributes across PHC practices. Nurses are prominent within PHC practices, engaging in a wide range of roles related to chronic disease management, suggesting a need to better understand their contributions to patient care to optimize their roles.
Work incentives in the Social Security Disability benefit formula
Authors: GODA GOPI SHAH , SHOVEN JOHN B. , SLAVOV SITA NATARAJ 
Published: April 2018

AbstractWe examine the connection between taxes paid and benefits accrued under the Social Security Disability Insurance (SSDI) program on both the intensive and extensive margins. We perform these calculations for stylized workers given the existing benefit structure and disability hazard rates. On the intensive margin, we examine the effect of an additional dollar of earnings on the marginal payroll taxes contributed and future benefits earned. We find that the present discounted value of disability benefits received from an additional dollar of earnings, net of the SSDI payroll tax, generally declines with age, becoming negative around age 40 and reaching almost zero at age 63. On the extensive margin, we determine the effect of working an additional year on the additional payroll taxes and future benefits as a percentage of income. The return to working an additional year at an income level just large enough to earn Social Security credits for the year is large and positive through age 60. However, the return to working an additional full year is substantially smaller and becomes negative at approximately age 57. Thus, older workers face strong incentives to earn enough to obtain creditable coverage through age 60, but they face disincentives for additional earnings. In addition, workers aged 61 and older face work disincentives at any level of earnings. We repeat this analysis for stylized workers at different levels of earnings and find that, while the program transfers resources from high earners to low earners, the workers experience similar patterns in the returns to working.
Genetic diversity analysis of the Greek lentil (Lens culinaris) landrace ‘Eglouvis’ using morphological and molecular markers
Authors: Tsanakas Georgios F. , Mylona Photini V. , Koura Katerina , Gleridou Anthoula , Polidoros Alexios N. 
Published: April 2018

AbstractThe Greek lentil landrace ‘Eglouvis’ is cultivated continuously at the Lefkada island for more than 400 years. It has great taste, high nutritional value and high market price. In the present study, we used morphological and molecular markers to estimate genetic diversity within the landrace. Morphological analysis was based on characteristics of the seed. Molecular analysis was performed using simple sequence repeat (SSR) molecular markers in a high-resolution melting (HRM) approach. ‘Samos’ and ‘Demetra’, two of the most widely cultivated commercial lentil varieties in Greece, were used for comparisons. Morphological analysis was performed with 584 seeds randomly selected from a lot. Analysis of seed dimensions and colour distributed the samples in different categories and highlighted the phenotypic variability in ‘Eglouvis’ lentil seeds. Genetic variability was estimated from 91 individual DNA samples with 11 SSR markers using HRM analysis. Genotyping was based upon the shape of the melting curves and the difference plots; all polymerase chain reaction products were also run on agarose gels. Genetic distances of individuals and principal coordinates analysis suggested that ‘Eglouvis’ landrace has a unique genetic background that significantly differs from ‘Samos’ and ‘Demetra’ and no overlapping could be detected. Genetic variability within the ‘Eglouvis’ landrace can be considered in targeted breeding programs as a significant phytogenetic resource of lentils in Greece.
Seventy years of the British National Health Service: problem, politics and policy streams
Authors: Powell Martin 
Published: April 2018

AbstractThe British National Health Service (NHS) celebrates its 70th birthday on 5 July 2018. This paper examines this anniversary through the lens of previous anniversaries, exploring two strands of political debates and NHS documents. It draws on the basic ‘multiple streams model’ of Kingdon that argues that an issue reaches the agenda when the policy window opens to allow the coupling of three independent streams – policy, problem and politics. It is found that there appears to be some discontinuity in the problem stream; some periods of relative consensus and sharp political differences in the politics stream; and sharp variations over time in the policy stream. While it is clear that there have been both continuities and discontinuities in the problem, politics and policy streams over the past 70 years, they have rarely come together to result in a policy that has taken it off the agenda.
The punitive consequences of organizational structures in England, France and the United States
Authors: D'AMICO DANIEL J. , WILLIAMSON CLAUDIA 
Published: April 2018

AbstractWe develop a framework for understanding how legal structures relate to imprisonment. We hypothesize that relatively more hierarchy within criminal justice institutions, compared to commercial law, fosters higher rates of incarceration. Our framework predicts that incarceration reflects asymmetric opportunities for rent seeking across differently organized legal institutions. Instead of comparing criminal justice institutions across nations in absolute terms, we investigate the relative degrees of institutional centralization across legal spheres. To provide support, we document the separate historical experiences that shaped divergent organizations across England and France. Within each country, criminal legal institutions developed inverse organizational traits from commercial legal processes. As a result, the contrasting organizations created asymmetric opportunities for rent seeking. Divergent contemporary outcomes can be understood by recognizing these initial organizational choices, the relative opportunities they created, and their subsequent path dependencies. We document contemporary England, France, and the United States’ incarceration trends and penal outcomes to provide empirical support.
The Politics of Queer Religion
Authors: Cravens Royal G. 
Published: April 2018

AbstractReligious affiliation and participation are thought to work as mobilizing structures through which religious participants accrue organizational and psychological resources, which augment political participation. Given the rejection of homosexuality by many denominations, do religious LGBT people actually accrue more positive psychological resources, and are the positive effects of religiosity on political participation mitigated when belief conflicts with identity? Informed by resource mobilization theory, the identity-threat model of stigmatization, and an intersectional approach, I conduct secondary analyses of two survey data sets of LGBT people. The results suggest that religiosity is associated with increased political participation among LGBT people; however, religious LGBT people exhibit weaker psychological association with the LGBT community and are “out” to fewer people. Furthermore, political participation is less likely among those who experience conflict between their religion and sexuality and among Evangelical Christians.
Seed Germination and Seedling Recruitment Behavior of Winged Sea Lavender (Limonium lobatum) in Southern Australia
Authors: Kleemann Samuel G. L. , Gill Gurjeet 
Published: April 2018

AbstractWinged sea lavender [Limonium lobatum(L.f. Chaz)] is emerging as a significant weed of field crops in southern Australia. Several environmental factors affecting germination and seedling recruitment were examined to provide a better understanding of the behavior of its seedbank. At maturity, weed seeds were dormant for a period of around 2 mo, but dormancy was easily broken with scarification or by pretreatment with 564 mM NaOCL for 30 min, which confirms the role of the seed coat in regulating seed germination. Exposure to light significantly increased germination. Seeds were able to germinate over a broad range of temperatures (5 to 30 C), with maximum germination (~92%) at temperatures between 10 and 30 C. At 20 to 25 C, 50% germination was reached within 1.3 to 2 d, and the predicted base temperature for germination of the two populations ranged from 1.4 to 3.9 C. The NaCl concentration required to inhibit germination by 50% was 230 mM, with some seeds capable of germination at salinity levels as high as 480 mM. These results indicated greater tolerance to salinity inL. lobatumthan many other Australian agricultural weed species previously investigated. Seedling emergence was the highest (51% to 57%) for seeds present on the soil surface and was significantly reduced by burial at 1 cm (≤11%) and 2 cm (≤2%), with no emergence at 5 cm. Under field conditions, seedling recruitment varied considerably among the three experimental sites. The level of seedling recruitment was negatively associated with rainfall received at the site, organic carbon (OC) level, and microbial biomass of the soil. Rapid decay of weed seeds in high-OC soils appears to be an important determinant of seedling recruitment in this species and could explain greater occurrence ofL. lobatumon soils with low OC and low microbial activity in low-rainfall areas of southern Australia. Furthermore, many such soils in southern Australia are affected by salinity, which would enableL. lobatumto be more competitive with crops and other weeds present at a site.
Spatio‐Temporal Convergence of Maximum Daily Light‐Use Efficiency Based on Radiation Absorption by Canopy Chlorophyll
Authors: Zhang Yao , Xiao Xiangming , Wolf Sebastian , Wu Jin , Wu Xiaocui , Gioli Beniamino , Wohlfahrt Georg , Cescatti Alessandro , van der Tol Christiaan , Zhou Sha , Gough Christopher M. , Gentine Pierre , Zhang Yongguang , Steinbrecher Rainer , Ardö Jonas 
Published: April 2018

AbstractLight‐use efficiency (LUE), which quantifies the plants' efficiency in utilizing solar radiation for photosynthetic carbon fixation, is an important factor for gross primary production estimation. Here we use satellite‐based solar‐induced chlorophyll fluorescence as a proxy for photosynthetically active radiation absorbed by chlorophyll (APARchl) and derive an estimation of the fraction of APARchl (fPARchl) from four remotely sensed vegetation indicators. By comparing maximum LUE estimated at different scales from 127 eddy flux sites, we found that the maximum daily LUE based on PAR absorption by canopy chlorophyll (
), unlike other expressions of LUE, tends to converge across biome types. The photosynthetic seasonality in tropical forests can also be tracked by the change of fPARchl, suggesting the corresponding
to have less seasonal variation. This spatio‐temporal convergence of LUE derived from fPARchl can be used to build simple but robust gross primary production models and to better constrain process‐based models.
Mechanisms of Wave‐Driven Water Level Variability on Reef‐Fringed Coastlines
Authors: Buckley M. L. , Lowe R. J. , Hansen J. E. , van Dongeren A. R. , Storlazzi C. D. 
Published: April 2018

AbstractWave‐driven water level variability (and runup at the shoreline) is a significant cause of coastal flooding induced by storms. Wave runup is challenging to predict, particularly along tropical coral reef‐fringed coastlines due to the steep bathymetric profiles and large bottom roughness generated by reef organisms, which can violate assumptions in conventional models applied to open sandy coastlines. To investigate the mechanisms of wave‐driven water level variability on a reef‐fringed coastline, we performed a set of laboratory flume experiments on an alongshore uniform bathymetric profile with and without bottom roughness. Wave setup and waves at frequencies lower than the incident sea‐swell forcing (infragravity waves) were found to be the dominant components of runup. These infragravity waves were positively correlated with offshore wave groups, signifying they were generated in the surf zone by the oscillation of the breakpoint. On the reef flat and at the shoreline, the low‐frequency waves formed a standing wave pattern with energy concentrated at the natural frequencies of the reef flat, indicating resonant amplification. Roughness elements used in the flume to mimic large reef bottom roughness reduced low‐frequency motions on the reef flat and reduced wave runup by 30% on average, compared to the runs over a smooth bed. These results provide insight into sea‐swell and infragravity wave transformation and wave setup dynamics on steep‐sloped coastlines, and the effect that future losses of reef bottom roughness may have on coastal flooding along reef‐fringed coasts.
Dual Doppler Effect in Wedge-Type Photonic Crystals
Authors: Jiang Qiang , Chen Jiabi , Cao Liangcai , Zhuang Songlin , Jin Guofan 
Published: April 2018

AbstractThe dual Doppler effect, in the simultaneous occurrence of both normal and inverse Doppler effect in one moving two-dimensional wedge-type photonic crystal, is proposed. An improved finite-different time-domain algorithm is used to verify this phenomenon. The spatial Fourier Transformation has been applied to complex electrical field data to reveal the mechanism. The harmonics with negative spatial frequencies show a lagging phase evolution, while those with positive spatial frequencies show a front phase evolution. Different wedge-type photonic crystals are designed to filter out the required harmonics based on the systematic study of spatial Fourier Transformation and wave vector diagram. Our work paves a new way for Doppler cooling of atomic gases, radar deception, invisibility cloaks, microstructure dual frequency interferometer and so on.