bluuebunny/crossref_metadata_2025_split huggingface dataset:
Embodying “tech”: Articulatory setting, phonetic variation, and social meaning
Authors: Pratt Teresa 
Published: August 2019

AbstractThis article examines the co‐occurring realization of two sociophonetic variables within a style—the LOT vowel in English and word‐initial /l/—to explore the link between articulatory setting and stylistic practice. At an arts‐focused high school in the San Francisco Bay Area, the curricular and social practices of students in the technical theatre department centre around manual labour. Ethnographic analysis demonstrates that “tech” constitutes a locally enregistered persona, informed by tech students’ positioning as working‐class subjects through their bodily, sartorial, and technological practices. Tech students also produce higher and more rounded variants of LOT, and more velarized productions of /l/, than their non‐tech peers, and I suggest that articulatory setting is at play in the cohesive indexicality of these variants. I advocate for the continued exploration of co‐occurring sociolinguistic variables which treat the body as a broader stylistic context, and propose that studies of co‐occurring features focus on the ideological processes by which combinations of variables come to index thematic styles.
Effects of available lysine concentrations in 28 and 32% protein diets on growth, feed efficiency, processing yield, and fillet composition of pond‐raised channel catfish, Ictalurus punctatus
Authors: Li Menghe H. , Bosworth Brian G. , Lucas Penelope M. 
Published: August 2019

AbstractA study was conducted in earthen ponds to investigate the effects of available lysine (AL) concentrations in 28 and 32% protein diets on production and processing characteristics, proximate composition, and lysine concentrations in the fillet of channel catfish, Ictalurus punctatus. Diets were formulated to contain 28% protein with 1.22 and 1.43% AL, and 32% protein with 1.43 and 1.63% AL, which were equivalent to 4.37, 5.1, 4.46, and 5.1% AL of protein, respectively. Fingerlings with a mean initial weight of 32 g/fish were stocked into 20 ponds (0.04 ha) at 19,760 fish/ha. Fish were fed once daily to apparent satiation for 181 days. No significant differences were observed for total diet fed, net yield, weight gain, survival, or fillet proximate composition among dietary treatments. However, the 28% protein with low AL diet (1.22% AL of diet or 4.37% AL of protein) resulted in significantly lower carcass and fillet yield and fillet lysine level compared with fish fed the 28% protein diet with 1.43% AL (5.1% AL of protein) and 32% protein diets with 1.43 and 1.63% AL (4.47 and 5.1% AL of protein). Results suggest 1.43% AL of diet is adequate for both 28 and 32% protein diets for optimum growth, processing yield, and lysine retention in fillets for pond‐raised channel catfish.
Songbird presumed to be age‐limited learner may change repertoire size and composition throughout their life
Authors: Osiejuk T. S. , Łosak K. , Steifetten Ø. , Dale S. 
Published: August 2019

AbstractSongbirds learn to sing by imitating their conspecific songs through social learning. It is commonly thought that in species with small repertoires, so‐called crystallization of the song repertoire takes place before the first breeding attempt and afterwards their repertoires remain unchanged. However, the number of studies in which individual song repertoires have been tracked longitudinally under natural conditions is still small. The ortolan bunting (Emberiza hortulana) is a small Eurasian passerine species. Studies on this species have shown that males have small song repertoires (usually 2–3), share the same final phrase within a local dialect area, and their repertoires remain unchanged during their lifetimes. We studied the whole, isolated Norwegian population of this species with 100–150 individually marked males. We compared repertoire sizes and contents using cross‐sectional and longitudinal approaches. We focused on marked males aged 2–10 years and recorded in up to five breeding seasons between 2001 and 2006. There was no local dialect because songs with different final phrases occurred both within and between males. Repertoire size varied between 1 and 24 (4.7 ± 3.4) song types per male. Longitudinal analysis showed an increase in repertoire size in 29% and a decrease in 21% of males. Males whose repertoires remained the same in size between years often substantially changed in contents. New song types appeared in almost 70% of males, and over 30% of males started singing new syllable types after the second calendar year. In almost 50% of males, new song types appeared that were built as new combinations of syllables shown in previous years. In 30% of males, the song complexity increased with age. Simultaneously, over 60% of males selectively ceased singing some song types. We suggest that these repertoire alterations are linked to the isolation and fragmentation of this population, which may affect song learning patterns through increased breeding dispersal and a strongly male‐biased sex ratio. Similar studies from abundant and continuous populations of the species are needed to test this idea.
Dimensions of national culture associated with different trajectories of male and female mean body mass index in countries over 25 years
Authors: Wallace Chelsea , Vandevijvere Stefanie , Lee Arier , Jaacks Lindsay M. , Schachner Michael , Swinburn Boyd 
Published: August 2019

SummaryCultural determinants of obesity prevalence have been little studied but could explain significant variations in body mass index (BMI) trajectories among countries. This ecological study quantified longitudinal associations between six dimensions of national culture and mean population BMI over 25 years. National mean male and female BMI data 1990 to 2014 provided dependent variables. National dimensions of culture (from the Hofstede database for up to 87 countries) were independent variables: Individualism, Uncertainty avoidance, Indulgence, Long‐term orientation, Power distance, and Masculinity. Analyses used mixed models for repeated measures for each dimension of national culture with male and female adult BMI trajectories, controlling for confounders. A higher mean BMI was significantly associated with higher Individualism, Uncertainty avoidance, Indulgence, and Masculine orientation and with lower Power distance (males only) and lower Long‐term orientation (males only). Overall, the national cultural dimensions explained 62.4% (males) and 53.5% (females) of the variance in mean BMI among countries. National cultural characteristics, especially Individualism and Uncertainty avoidance, are strongly related to obesity prevalence, explaining over half of the variance among countries. More research and theory development is needed to understand the pathways for these associations so that cultural contexts can be better accounted for in policies, social marketing messages, and community‐based actions for obesity prevention.
Assessing geriatric capacity building needs in public hospitals in Mexico
Authors: Squires Allison , Caceres Billy , Bub Linda , Negrete Redondo Maribel Isabel 
Published: August 2019

AbstractAimsTo conduct a needs assessment of public hospitals in Mexico to determine workforce specific capacity building needs in the care of older people.BackgroundThe older population in Mexico is growing rapidly. The healthcare system and workforce may not be prepared to handle the needs of older people, especially those with chronic illnesses who are also disadvantaged socioeconomically. Determining workforce and system needs is important to strategically develop capacity.MethodsA needs assessment using a pragmatic qualitative approach structured this study. Semi‐structured interviews and focus groups were conducted with healthcare professionals at five public hospitals in Mexico. Directed content analysis techniques analysed the data.ResultsNinety‐two healthcare professionals participated in the study. Three themes emerged, including geriatric service delivery, social changes and human resources for health. Participants reported a lack of gerontology knowledge and related clinical skills deficits to provide care for hospitalised elders and expressed emotional distress related to the lack of resources in their institutions. All healthcare professionals expressed strong concern at the social toll the ageing population had on families. The support of government organisations emerged as a facilitator for adoption of geriatric care principles.ConclusionsThis qualitative study uncovered important data to inform the implementation of quality improvement and capacity building models for older people care in Mexico. There appears to be strong potential for a culturally appropriate translation of high‐income country older people care models within the Mexican healthcare context.Implications for practiceFindings suggests there is a need to increase geriatric capacity building among helathcare professionals in Mexico. This will be an important step in improving care for hospitalised older people.
A systematic dissection of the mechanisms underlying the natural variation of silique number in rapeseed (Brassica napus L.) germplasm
Authors: Li Shuyu , Zhu Yaoyao , Varshney Rajeev Kumar , Zhan Jiepeng , Zheng Xiaoxiao , Shi Jiaqin , Wang Xinfa , Liu Guihua , Wang Hanzhong 
Published: August 2019

SummarySilique number is the most important component of yield in rapeseed (Brassica napus L.). To dissect the mechanism underlying the natural variation of silique number in rapeseed germplasm, a series of studies were performed. A panel of 331 core lines was employed to genome‐wide association study (GWAS), and 27 loci (including 20 novel loci) were identified. The silique number difference between the more‐ and fewer‐silique lines can be attributed to the accumulative differences in flower number and silique setting rate. Each of them accounted for 75.2% and 24.8%, respectively. The silique number was highly associated with the total photosynthesis and biomass. Microscopic analysis showed that the difference between extremely more‐ and fewer‐silique lines normally occurred at the amount of flower bud but not morphology. Transcriptome analysis of shoot apical meristem (SAM) suggested that most of enriched groups were associated with the auxin biosynthesis/metabolism, vegetative growth and nutrition/energy accumulation. By integrating GWAS and RNA‐seq results, six promising candidate genes were identified, and some of them were related to biomass accumulation. In conclusion, the natural variation of silique number is largely affected by the biomass and nutrition accumulation, which essentially reflects the positive regulatory relationship between the source and sink. Our study provides a comprehensive and systematic explanation for natural variation of silique number in rapeseed, which provides a foundation for its improvement.
De novo assembly of a wild pear (Pyrus betuleafolia) genome
Authors: Dong Xingguang , Wang Zheng , Tian Luming , Zhang Ying , Qi Dan , Huo Hongliang , Xu Jiayu , Li Zhe , Liao Rui , Shi Miao , Wahocho Safdar Ali , Liu Chao , Zhang Simeng , Tian Zhixi , Cao Yufen 
Published: August 2019

SummaryChina is the origin and evolutionary centre of Oriental pears. Pyrus betuleafolia is a wild species native to China and distributed in the northern region, and it is widely used as rootstock. Here, we report the de novo assembly of the genome of P. betuleafolia‐Shanxi Duli using an integrated strategy that combines PacBio sequencing, BioNano mapping and chromosome conformation capture (Hi‐C) sequencing. The genome assembly size was 532.7 Mb, with a contig N50 of 1.57 Mb. A total of 59 552 protein‐coding genes and 247.4 Mb of repetitive sequences were annotated for this genome. The expansion genes in P. betuleafolia were significantly enriched in secondary metabolism, which may account for the organism's considerable environmental adaptability. An alignment analysis of orthologous genes showed that fruit size, sugar metabolism and transport, and photosynthetic efficiency were positively selected in Oriental pear during domestication. A total of 573 nucleotide‐binding site (NBS)‐type resistance gene analogues (RGAs) were identified in the P. betuleafolia genome, 150 of which are TIR‐NBS‐LRR (TNL)‐type genes, which represented the greatest number of TNL‐type genes among the published Rosaceae genomes and explained the strong disease resistance of this wild species. The study of flavour metabolism‐related genes showed that the anthocyanidin reductase (ANR) metabolic pathway affected the astringency of pear fruit and that sorbitol transporter (SOT) transmembrane transport may be the main factor affecting the accumulation of soluble organic matter. This high‐quality P. betuleafolia genome provides a valuable resource for the utilization of wild pear in fundamental pear studies and breeding.
Relevance of lung ultrasound in the diagnostic algorithm of respiratory diseases in a real‐life setting: A multicentre prospective study
Authors: Rinaldi Luca , Milione Stefania , Fascione Maria Chiara , Pafundi Pia Clara , Altruda Concetta , Di Caterino Mafalda , Monaco Lucio , Reginelli Alfonso , Perrotta Fabio , Porta Giovanni , Venafro Mario , Acierno Carlo , Mastrocinque Davide , Giordano Mauro , Bianco Andrea , Sasso Ferdinando Carlo , Adinolfi Luigi Elio 
Published: August 2019

ABSTRACTBackground and objectiveThe aim of this study was to assess the role of lung ultrasound (LUS) in a diagnostic algorithm of respiratory diseases, and to establish the accuracy of LUS compared with chest radiography (CXR).MethodsOver a period of 2 years, 509 consecutive patients admitted for respiratory‐related symptoms to both emergency and general medicine wards were enrolled and evaluated using LUS and CXR. LUS was conducted by expert operators who were blinded to the medical history and laboratory data. Computed tomography (CT) of the chest was performed in case of discordance between the CXR and LUS, suspected lung cancer and an inconclusive diagnosis. Diagnosis made by CT was considered the gold standard.ResultsThe difference in sensitivity and specificity between LUS and CXR as demonstrated by ROC curve analyses (LUS‐AUROC: 0.853; specificity: 81.6%; sensitivity: 93.9% vs CXR‐AUROC: 0.763; specificity: 57.4%; sensitivity: 96.3%) was significant (P = 0.001). Final diagnosis included 240 cases (47.2%) of pneumonia, 44 patients with cancer (8.6%), 20 patients with chronic obstructive pulmonary disease (COPD, 3.9%), 24 patients with heart failure (4.7%) and others (6.1%). In 108 patients (21.2%) with any lung pathology, a CT scan was performed with a positive diagnosis in 96 cases (88.9%); we found that CXR and LUS detected no abnormality in 24 (25%) and 5 (5.2%) cases, respectively. LUS was concordant with the final diagnosis (P < 0.0001), and in healthy patients, there was a low percentage of false positives (5.9%).ConclusionThe results support the routine use of LUS in the clinical context.
The Law of Equal Opportunities or Unintended Consequences?: The Effect of Unisex Risk Assessment in Consumer Credit
Authors: Andreeva Galina , Matuszyk Anna 
Published: August 2019

Summary
Gender is prohibited from use in decision making in many countries. This does not necessarily benefit females in situations of automated algorithmic decisions, e.g. when a credit scoring model is used as a decision tool for loan granting. By analysing a unique proprietary data set on car loans from a European bank, the paper shows that gender as a variable in a credit scoring model is statistically significant. Its removal does not alter the predictive accuracy of the model, yet the proportions of accepted women/men depend on whether gender is included. The paper explores the association between predictors in the model with gender, to demonstrate the omitted variable bias and how other variables proxy for gender. It points to inconsistencies of the existing regulations in the context of automated decision making.
Inclined Magnetic Field, Thermal Radiation, and Hall Current Effects on Mixed Convection Flow Between Vertical Parallel Plates
Authors: Kaladhar K. , Madhusudhan Reddy K. , Srinivasacharya D. 
Published: August 2019

Abstract
This analysis studies the impact of an inclined magnetic field, hall current, and thermal radiation on fully developed electrically conducting mixed convection flow through a channel. The governing equations are nondimensionalized. The resulting system of nonlinear ordinary differential equations is solved utilizing spectral quasi-linearization method. Impact of all the pertaining flow parameters of this study on all the dimensionless profiles was calculated and presented through plots. Also, the nature of the physical parameters was calculated and presented in table form. This study clearly exhibits that the inclined magnetic field influences the fluid flow remarkably.
General-Surrogate Adaptive Sampling Using Interquartile Range for Design Space Exploration
Authors: Zhang Yiming , Kim Nam H. , Haftka Raphael T. 
Published: August 2019

Abstract
A surrogate model is a common tool to approximate system response at untested points for design space exploration. Adaptive sampling has been studied for improving the accuracy of surrogates iteratively by introducing additional samples (simulations and experiments). New samples are often selected based on the estimated uncertainty in the design space. While some surrogates such as kriging have readily available uncertainty models for their predictions, other surrogates do not. Consequently, there have been studies of using the process of leaving-samples-out (LSO) used in cross-validation tools to estimate prediction uncertainty, such as the universal prediction distribution (UPD). In this paper, an adaptive sampling scheme for general surrogates is proposed based on LSO, similar to cross-validation and interquartile range (IQR). Multiple submodels are first developed from LSO. The uncertainty is then estimated from the IQR of these surrogates at a given point. New samples are added iteratively at the point with maximum IQR for design space exploration. The proposed scheme is illustrated using kriging, radial basis function, and neural network surrogates. The proposed scheme is evaluated using four algebraic test functions. Multiple sets of initial samples were produced to account for randomness. For these test functions, the proposed scheme was found to be more accurate and robust than kriging with its own uncertainty model. The proposed scheme was more accurate than the UPD for three out of the four test functions. For a fixed number of samples, the IQR-based adaptive sampling also proved to be more accurate than all-at-once sampling in most cases even when the estimated uncertainty was only mildly correlated with prediction errors.
Knock Intensity Distribution and a Stochastic Control Framework for Knock Control
Authors: Kassa Mateos , Hall Carrie , Pamminger Michael , Wallner Thomas 
Published: August 2019

Abstract
One of the main factors limiting the efficiency of spark-ignited (SI) engines is the occurrence of engine knock. In high temperature and high pressure in-cylinder conditions, the fuel–air mixture auto-ignites creating pressure shock waves in the cylinder. Knock can significantly damage the engine and hinder its performance; as such, conservative knock control strategies are generally implemented which avoid such operating conditions at the cost of lower thermal efficiencies. Significant improvements in the performance of conventional knock controllers are possible if the properties of the knock process are better characterized and exploited in knock controller designs. One of the methods undertaken to better characterize knocking instances is to employ a probabilistic approach, in which the likelihood of knock is derived from the statistical distribution of knock intensity (KI). In this paper, it is shown that KI values at a fixed operating point for single fuel and dual fuel engines are accurately described using a mixed lognormal distribution. The fitting accuracy is compared against those for a randomly generated mixed-lognormally distributed dataset, and shown to exceed a 95% accuracy threshold for almost all of the operating points tested. Additionally, this paper discusses a stochastic knock control approach that leverages the mixed lognormal distribution to adjust spark timing based on KI measurements. This more informed knock control strategy would allow for improvements in engine performance and fuel efficiency by minimizing knock occurrences.
Molecular Mimicry, Autoimmunity, and Infection: The Cross-Reactive Antigens of Group A Streptococci and their Sequelae
Authors: Cunningham Madeleine W. 
Published: August 2019

ABSTRACTThe group A streptococci are associated with a group of diseases affecting the heart, brain, and joints that are collectively referred to as acute rheumatic fever. The streptococcal immune-mediated sequelae, including acute rheumatic fever, are due to antibody and cellular immune responses that target antigens in the heart and brain as well as the group A streptococcal cross-reactive antigens as reviewed in this article. The pathogenesis of acute rheumatic fever, rheumatic heart disease, Sydenham chorea, and other autoimmune sequelae is related to autoantibodies that are characteristic of autoimmune diseases and result from the immune responses against group A streptococcal infection by the host. The sharing of host and streptococcal epitopes leads to molecular mimicry between the streptococcal and host antigens that are recognized by the autoantibodies during the host response. This article elaborates on the discoveries that led to a better understanding of the pathogenesis of disease and provides an overview of the history and the most current thought about the immune responses against the host and streptococcal cross-reactive antigens in group A streptococcal sequelae.