bluuebunny/crossref_metadata_2025_split huggingface dataset:
Blade element momentum theory extended to model low Reynolds number propeller performance
Authors: MacNeill R. , Verstraete D. 
Published: May 2017

ABSTRACTPropellers are the predominant propulsion source for small unmanned aerial vehicles. At low advance ratios, large sections of the propeller blade can be stalled, and the Reynolds number faced by each blade can be low. This leads to difficulties in modelling propeller performance, as the aerodynamic models coupled with blade element methods usually only provide aerodynamic data for an assumed aerofoil section, for a small angle-of-attack range and for a single Reynolds number, while rotational effects are often ignored. This is specifically important at low advance ratios, and a consistent evaluation of the applicability of various methods to improve aerodynamic modelling is not available. To provide a systematic appraisal, three-dimensional (3D) scanning is used to obtain the aerofoil sections that make up a propeller blade. An aerodynamic database is formed using each extracted aerofoil section, across a wide range of angles of attack and Reynolds numbers. These databases are then modified to include the effects of rotation. When compared with experimental results, significant improvement in modelling accuracy is shown at low advance ratios relative to a generic blade element-momentum model, particularly for smaller propellers. Notably, when considering small propeller performance, efficiency modelling is improved from within 30% relative to experimental data to within 5% with the use of the extended blade element momentum theory method. The results show that combining Viterna and Corrigan flat plate theory with the Corrigan and Schillings stall delay model consistently yields the closest match with experimental data.
THE HEALTH HUMP
Authors: Strulik Holger 
Published: May 2017

AbstractIn this paper, I suggest a novel explanation for a hump-shaped age-consumption profile, based on human aging. The model integrates health in the utility function and utilizes recent estimates of the effects of health on the marginal utility of consumption. The parsimonious model has a closed-form solution for the age of peak consumption and the consumption level at that age relative to initial consumption. A calibration of the model with data from gerontology produces an empirically plausible hump in consumption.
Punishing the “Others”
Authors: Light Michael T. 
Published: May 2017

AbstractDespite ongoing debates on the continued legal significance of citizenship in a globalized world, international comparative tests of the salience of citizenship under the law have yet to be undertaken. This article combines data from US and German courts with interviews of judges from both countries to 1) estimate the punishment consequences of lacking state membership; 2) compare the sentencing gap across international contexts, and; 3) identify and explicate the mechanisms linking citizenship to punishment considerations. Findings show noncitizens receive increased punishment in US and German courts net of legal factors, but this effect is less pronounced in Germany. The interviews suggest that a variety of intervening mechanisms explain these results. Prominent among these is that judges in both countries resent the fact that noncitizens compound their immigrant status with criminal transgressions. However, German judges place greater emphasis on consistency and proportionality at sentencing, thus guarding against overly harsh and disparate punishments.
On Difficult New Terms: The business of lexicography in Mao Era China
Authors: ALTEHENGER JENNIFER E. 
Published: May 2017

AbstractEntries in Mao Era reference works today serve as windows into the world of words and meanings of a bygone era. Dictionaries and encyclopaedias, though, did not speak with one voice, even under Communist Party control. Lexicography and the question of who would get to publish on and explain the meaning of the ‘new terms’ and ‘new knowledge’ of ‘New China’ were subject to constant debates. Lexicographers, editors, and publishers specialized in the business of setting up categories and, together with readers and state censors, they policed them. Following on their heels, this article examines four moments in Mao Era lexicography, ranging from the early years of transition to Chinese Communist Party rule to the height of the Great Proletarian Cultural Revolution. Internal reports and letter exchanges on the production and circulation of single-volume encyclopaedic dictionaries show who contributed to encyclopaedic work, how it was controlled, and why control and censorship were often far from simple. Taking lexicography seriously as a component of the socialist information economy after 1949 sheds light on complex processes of knowledge transmission that defy simple models of socialist state propaganda.
Detection of Babesia DNA in blood and spleen samples from Eurasian badgers (Meles meles) in Scotland
Authors: BARTLEY PAUL M. , WILSON CARI , INNES ELISABETH A. , KATZER FRANK 
Published: May 2017

SUMMARYBabesia are intraerythrocytic parasites of importance worldwide within the fields of human and veterinary medicine, as some Babesia sp., including Babesia microti are potentially zoonotic and can cause fatal disease in both humans and animals. The aims of this study were to use a nested PCR (amplifying the 18S rRNA gene) to determine the presence and species of Babesia parasite DNA found in blood (n = 47) and spleen (n = 47) samples collected from Eurasian badgers (Meles meles) in Scotland. The results showed 28/47 (59·6%) blood and 14/47 (29·8%) spleen samples tested positive for the presence of Babesia DNA. Initial sequence analysis of the Babesia DNA identified three distinct sequence types (submitted to GenBank KX528553, KX528554 and KX528555), which demonstrated ⩾99% identity to Babesia sp. parasites previously identified in badgers in Spain (KT223484 and KT223485). Phylogenetic analysis showed that the three isolates are closely related to Babesia annae, B. microti and other Piroplasmida species found in wildlife. Further sequence analysis of the samples demonstrated that the badgers were routinely infected with more than one parasite isolate and there was also evidence of genetic recombination between the Babesia parasite isolates (submitted to GenBank KY250472 – KY250477)
Russia's strategy in the Arctic: cooperation, not confrontation
Authors: Staun Jørgen 
Published: May 2017

ABSTRACTRussia's strategy in the Arctic is dominated by two overriding international relations (IR) discourses – or foreign policy directions. On the one hand, there is an IR-realism/geopolitical discourse that puts security first and often has a clear patriotic character, dealing with ‘exploring’, ‘winning’ or ‘conquering’ the Arctic and putting power, including military power, behind Russia's national interests in the area. Opposed to this is an IR-liberalism, international law-inspired and modernisation-focused discourse, which puts cooperation first and emphasises ‘respect for international law’, ‘negotiation’ and ‘cooperation’, and labels the Arctic as a ‘territory of dialogue’, arguing that the Arctic states all benefit the most if they cooperate peacefully. After a short but very visible media stunt in 2007 and subsequent public debate by proponents of the IR-realism/geopolitical side, the IR-liberalism discourse has been dominating Russian policy in the Arctic since around 2008–2009, following a pragmatic decision by the Kremlin to let the Foreign Ministry and Foreign Minister Sergey Lavrov take the lead in the Arctic. The question asked here is how solid is this IR-liberalist-dominated Arctic policy? Can it withstand the pressure from more patriotic minded parts of the Russian establishment?
Pollen larceny of the tropical weedSolanum torvumby a Fijian endemic halictine bee with implications for the spread of plants with specialized pollinator requirements
Authors: Staines Morgan , Vo Cathy , Puiu Natalie , Hayes Sarah , Tuiwawa Marika , Stevens Mark I. , Schwarz Michael P. 
Published: May 2017

Abstract:The ability of plants to colonize new habitats is influenced by their dependence on effective pollinators. This can be very important for plants that require specialized pollinators, especially when they disperse to islands that have low pollinator diversity. One form of specialization involves plants that require buzz-pollination, where bees must vibrate poricidal anthers at frequencies that allow pollen to be released. Pollen larceny is a phenomenon where insects ‘steal’ pollen from flowers which usually results in reduced pollination, but in some cases there can be a small contribution to pollination. Here we report pollen larceny in an endemic Fijian halictine beeHomalictus fijiensisthat steals pollen by chewing anthers of the invasive weedSolanum torvum, which is a pollen-only plant requiring buzz pollination. In over nine hours of observations at six sites whereH. fijiensisvisitedS. torvum, it never attempted to locate nectaries, it never buzzed anthers, and instead chewed anther tips, indicating an adaptation to exploit nectarless flowers with poricidal anthers without buzz-pollination. Analyses of 30 pollen loads fromH. fijiensiscollected fromS. torvumflowers indicate 27 of these containedS. torvumpollen, ranging from 1% to 99% of total pollen, indicating it is a pollen vector for this plant. Our findings support arguments that super-generalist pollinators in island ecosystems can promote the spread of invasive plants, but go further by indicating that super-generalist strategies can extend to plants with highly specialized pollinator requirements.
Exploring ‘islandness’ and the impacts of nature conservation through the lens of wellbeing
Authors: COULTHARD SARAH , EVANS LOUISA , TURNER RACHEL , MILLS DAVID , FOALE SIMON , ABERNETHY KIRSTEN , HICKS CHRISTINA , MONNEREAU IRIS 
Published: May 2017

SUMMARYMotivated by growing concern as to the many threats that islands face, subsequent calls for more extensive island nature conservation and recent discussion in the conservation literature about the potential for wellbeing as a useful approach to understanding how conservation affects people's lives, this paper reviews the literature in order to explore how islands and wellbeing relate and how conservation might impact that relationship. We apply a three-dimensional concept of social wellbeing to structure the discussion and illustrate the importance of understanding island–wellbeing interactions in the context of material, relational and subjective dimensions, using examples from the literature. We posit that islands and their shared characteristics of ‘islandness’ provide a useful setting in which to apply social wellbeing as a generalizable framework, which is particularly adept at illuminating the relevance of social relationships and subjective perceptions in island life – aspects that are often marginalized in more economically focused conservation impact assessments. The paper then explores in more depth the influences of island nature conservation on social wellbeing and sustainability outcomes using two case studies from the global north (UK islands) and global south (the Solomon Islands). We conclude that conservation approaches that engage with all three dimensions of wellbeing seem to be associated with success.
An isolated outbreak of diphtheria in South Africa, 2015
Authors: MAHOMED S. , ARCHARY M. , MUTEVEDZI P. , MAHABEER Y. , GOVENDER P. , NTSHOE G. , KUHN W. , THOMAS J. , OLOWOLAGBA A. , BLUMBERG L. , MCCARTHY K. , MLISANA K. , DU PLESSIS M. , VON GOTTBERG A. , MOODLEY P. 
Published: May 2017

SUMMARYAn outbreak of respiratory diphtheria occurred in two health districts in the province of KwaZulu-Natal in South Africa in 2015. A multidisciplinary outbreak response team was involved in the investigation and management of the outbreak. Fifteen cases of diphtheria were identified, with ages ranging from 4 to 41 years. Of the 12 cases that were under the age of 18 years, 9 (75%) were not fully immunized for diphtheria. The case fatality was 27%. Ninety-three household contacts, 981 school or work contacts and 595 healthcare worker contacts were identified and given prophylaxis against Corynebacterium diphtheriae infection. A targeted vaccination campaign for children aged 6–15 years was carried out at schools in the two districts. The outbreak highlighted the need to improve diphtheria vaccination coverage in the province and to investigate the feasibility of offering diphtheria vaccines to healthcare workers.
Spatial distribution of mumps in South Korea, 2001–2015: identifying clusters and population risk factors
Authors: CHOE Y.-J. , MIN K. , CHO S.-I. 
Published: May 2017

SUMMARYIn South Korea, the resurgence of mumps was noted primarily among school-aged children and adolescents since 2000. We analyzed spatial patterns in mumps incidence to give an indication to the geographical risk. We used National Notifiable Disease Surveillance System data from 2001 to 2015, classifying into three periods according to the level of endemicity. A geographic-weighted regression analysis was performed to find demographic predictors of mumps incidence according to district level. We assessed the association between the total population size, population density, percentage of children (age 0–19 years), timely vaccination rate of measles–mumps–rubella vaccines and the higher incidence rate of mumps. During low endemic periods, there were sporadic regional distributions of outbreak in the central and northern part of the country. During intermediate endemic periods, the increase of incidence was noted across the country. During high endemic period, a nationwide high incidence of mumps was noted especially concentrated in southwestern regions. A clear pattern for the mumps cluster shown through global spatial autocorrelation analysis from 2004 to 2015. The ‘non-timely vaccination coverage’ (P = 0·002), and ‘proportion of children population’ (P < 0·001) were the predictors for high mumps incidence in district levels. Our study indicates that the rate of mumps incidence according to geographic regions vary by population proportion and neighboring regions, and timeliness of vaccination, suggesting the importance of community-level surveillance and improving of timely vaccination.
Serological evidence of coronavirus infections in native hamadryas baboons (Papio hamadryas hamadryas) of the Kingdom of Saudi Arabia
Authors: OLARINMOYE A.O. , OLUGASA B.O. , NIPHUIS H. , HERWIJNEN R.V. , VERSCHOOR E. , BOUG A. , ISHOLA O.O. , BUITENDIJK H. , FAGROUCH Z. , AL-HEZAIMI K. 
Published: May 2017

SUMMARYThe hamadryas baboon (Papio hamadryas hamadryas) is the only indigenous species of non-human primates (NHP) found in the Kingdom of Saudi Arabia (KSA). There are no peer-reviewed publications on viral infections of the baboons of KSA. Apart from camels, other animals are likely sources of the novel Middle East Respiratory Syndrome coronavirus (MERSCoV) for humans. We investigated evidence of highly pathogenic coronavirus infections including MERSCoV in a large group of commensal baboons accompanied by feral dogs, on the outskirts of Ta'if city, KSA, in February 2013. Fifty baboons (16 juveniles and 34 adults) were screened for serum antibodies to human coronaviruses (HCoV-043/-NL63/-229) and canine coronaviruses (CCoV-1-3) using direct Enzyme-linked Immunosorbent Assay (ELISA) technique and for MERSCoV antibodies using Serum Neutralization Test (SNT). Of the 50 sampled baboons, 22% (n= 11) were seropositive to HCoVs, 10% (n= 5) were seropositive to CCoVs, while none had detectable MERSCoV antibodies. These findings bear potentially significant implications for public health, canine health and baboon conservation efforts, necessitating follow-up investigations and preventive measures at locations where baboons frequent human habitations, or are regarded as tourist attractions, in KSA.
The Conjunctiva-Associated Lymphoid Tissue in Chronic Ocular Surface Diseases
Authors: Mastropasqua Rodolfo , Agnifili Luca , Fasanella Vincenzo , Nubile Mario , Gnama Agbeanda A. , Falconio Gennaro , Perri Paolo , Di Staso Silvio , Mariotti Cesare 
Published: May 2017

AbstractOcular surface diseases (OSDs) represent a widely investigated field of research given their growing incidence and the negative impact on quality of life. During OSDs, cytokines generated by damaged epithelia trigger and deregulate the lymphoid cells composing the eye-associated lymphoid tissues, inducing an immune-mediated chronic inflammation that amplifies and propagates the disease during time. The conjunctiva-associated lymphoid tissue (CALT), given its particular position that permits immune cells covering the cornea, might play a crucial role in the development of OSDs. Despite the recognized inflammatory role of mucosa-associated lymphoid tissues in other stations taking contact with the external environment (gut or bronchus), CALT did not gain the deserved consideration. In the last years, the diffusion of the in vivo confocal microscopy (IVCM) stimulated the interest to CALT, especially in dry eye, ocular allergy, and glaucoma. Though the initial stimuli were different, IVCM documented similar changes, represented by increased lymphoid cells within the diffuse layer, follicles and interfollicular spaces. These findings, which need to be validated by immunohistology, support the CALT stimulation during OSDs. However, while an involvement of the CALT in OSDs is hypothesizable, the exact role of this structure in their pathogenesis remains unclear and warrants further investigations.
Supporting home hospice family caregivers: Insights from different perspectives
Authors: Ellington Lee , Cloyes Kristin G. , Xu Jiayun , Bellury Lanell , Berry Patricia H. , Reblin Maija , Clayton Margaret F. 
Published: May 2017

ABSTRACTObjective:Our intention was to describe and compare the perspectives of national hospice thought leaders, hospice nurses, and former family caregivers on factors that promote or threaten family caregiver perceptions of support.Method:Nationally recognized hospice thought leaders (n = 11), hospice nurses (n = 13), and former family caregivers (n = 14) participated. Interviews and focus groups were audiotaped and transcribed. Data were coded inductively, and codes were hierarchically grouped by topic. Emergent categories were summarized descriptively and compared across groups.Results:Four categories linked responses from the three participant groups (95%, 366/384 codes): (1) essentials of skilled communication (30.6%), (2) importance of building authentic relationships (28%), (3) value of expert teaching (22.4%), and (4) critical role of teamwork (18.3%). The thought leaders emphasized communication (44.6%), caregivers stressed expert teaching (51%), and nurses highlighted teamwork (35.8%). Nurses discussed teamwork significantly more than caregivers (z = 2.2786), thought leaders discussed communication more than caregivers (z = 2.8551), and caregivers discussed expert teaching more than thought leaders (z = 2.1693) and nurses (z = 2.4718; all values of p < 0.05).Significance of Results:Our findings suggest differences in priorities for caregiver support across family caregivers, hospice nurses, and thought leaders. Hospice teams may benefit from further education and training to help cross the schism of family-centered hospice care as a clinical ideal to one where hospice team members can fully support and empower family caregivers as a hospice team member.
The influence of psychological factors on the burden of caregivers of patients with advanced cancer: Resiliency and caregiver burden
Authors: Palacio Carolina , Krikorian Alicia , Limonero Joaquín T. 
Published: May 2017

ABSTRACTObjective:The aim of our study was to identify the influence of such psychological factors as emotional intelligence and perceived competence on caregiver burden in those who care for patients with advanced cancer.Method:A total of 50 informal caregivers completed self-report assessments of resilience, perceived competence, emotional regulation, positive aspects of care, emotional distress, and burden. We conducted a quantitative study with a cross-sectional design. Descriptive statistics were obtained. Associations between the different variables were assessed using nonparametric and multiple regression analyses.Results:Participants were mainly female (88%) and had an average of 20 months of caregiving. Their mean age was 47 years (range = 20–79). More than half of scored high on resilience, positive aspects of caring, and emotional distress, moderately on perceived competence, and low on burden. Most caregivers used cognitive restructuring and social support as coping strategies. Inverse negative correlations were observed among emotional distress, emotional state, and burden with perceived competence and positive aspects of caring (p < 0.05). Significant differences were obtained for emotional distress, cognitive restructuring, and resiliency. Multiple regression analyses demonstrated that perceived competence, resiliency, and positive aspects of caring were the main predictors of burden.Significance of Results:Resilience, perceived competence, emotional regulation, and positive aspects of care constitute protective factors against caregiver burden. Taken together, these aspects should be promoted by the healthcare staff in order to facilitate caregiver adaptation and well-being.
Genetic variation and RNA structure regulate microRNA biogenesis
Authors: Fernandez Noemi , Cordiner Ross A. , Young Robert S. , Hug Nele , Macias Sara , Cáceres Javier F. 
Published: May 2017

AbstractMiRNA biogenesis is highly regulated at the post-transcriptional level; however, the role of sequence and secondary RNA structure in this process has not been extensively studied. A single G to A substitution present in the terminal loop of pri-mir-30c-1 in breast and gastric cancer patients had been previously described to result in increased levels of mature miRNA. Here, we report that this genetic variant directly affects Drosha-mediated processing of pri-mir-30c-1 in vitro and in cultured cells. Structural analysis of this variant revealed an altered RNA structure that facilitates the interaction with SRSF3, an SR protein family member that promotes pri-miRNA processing. Our results are compatible with a model whereby a genetic variant in pri-mir-30c-1 leads to a secondary RNA structure rearrangement that facilitates binding of SRSF3 resulting in increased levels of miR-30c. These data highlight that primary sequence determinants and RNA structure are key regulators of miRNA biogenesis.
Atomic-level energy storage mechanism of cobalt hydroxide electrode for pseudocapacitors
Authors: Deng Ting , Zhang Wei , Arcelus Oier , Kim Jin-Gyu , Carrasco Javier , Yoo Seung Jo , Zheng Weitao , Wang Jiafu , Tian Hongwei , Zhang Hengbin , Cui Xiaoqiang , Rojo Teófilo 
Published: May 2017

AbstractCobalt hydroxide is a promising electrode material for supercapacitors due to the high capacitance and long cyclability. However, the energy storage/conversion mechanism of cobalt hydroxide is still vague at the atomic level. Here we shed light on how cobalt hydroxide functions as a supercapacitor electrode at operando conditions. We find that the high specific capacitance and long cycling life of cobalt hydroxide involve a complete modification of the electrode morphology, which is usually believed to be unfavourable but in fact has little influence on the performance. The conversion during the charge/discharge process is free of any massive structural evolution, but with some tiny shuffling or adjustments of atom/ion species. The results not only unravel that the potential of supercapacitors could heavily rely on the underlying structural similarities of switching phases but also pave the way for future material design for supercapacitors, batteries and hybrid devices.