bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effects of stable stratification on the decay of initially isotropic homogeneous turbulence
Authors: de Bruyn Kops Stephen M. , Riley James J. 
Published: December 2018

We report on direct numerical simulations of the decay of initially isotropic, homogeneous turbulence subject to the application of stable density stratification. Flows were simulated for three different initial Reynolds numbers, but for the same initial Froude number. We find that the flows pass through three different dynamical regimes as they decay, depending on the local values of the Froude number and activity parameter. These regimes are analogous to those seen in the experimental study of Spedding (J. Fluid Mech., vol. 337, 1997, pp. 283–301) for the wake of a sphere. The flows initially decay with little influence of stratification, up to approximately one buoyancy period, when the local Froude number has dropped below 1. At this point the flows have adjusted to the density stratification, and, if the activity parameter is large enough, begin to decay at a slower rate and spread horizontally at a faster rate, consistent with the predictions of Davidson (J. Fluid Mech., vol. 663, 2010, pp. 268–292) and the scaling arguments of Billant & Chomaz (Phys. Fluids, vol. 13, 2001, pp. 1645–1651). We refer to this second regime as the stratified turbulence regime. As the flows continue to decay, ultimately the activity parameter drops below approximately 1 as viscous effects begin to dominate. In this regime, the flows have become quasi-horizontal, and approximately obey the scaling arguments of Godoy-Diana et al. (J. Fluid Mech., vol. 504, 2004, pp. 229–238).
Caryl Bosman, Aysin Dedekorkut-Howes and Andrew Leach (eds), 'Off the Plan: The Urbanisation of the Gold Coast' -- Tor Hundloe, Bridgette McDougall and Craig Page (eds) 'The Gold Coast Transformed: From Wilderness to Urban Ecosystem'
Authors: Spearitt Peter 
Published: December 2018

Caryl Bosman, Aysin Dedekorkut-Howes and Andrew Leach (eds), Off the Plan: The Urbanisation of the Gold Coast, Melbourne: CSIRO Publishing, 2016, 190 pp., ISBN 9 7814 8630 1836, A$69.95
Tor Hundloe, Bridgette McDougall and Craig Page (eds) The Gold Coast Transformed: From Wilderness to Urban Ecosystem, Melbourne: CSIRO Publishing, 2015, 210 pp., ISBN 9 7814 8630 3298, A$59.95
Component composition, in vitro gas and methane production profiles of fruit by-products and leaves of root crops
Authors: Melesse A. , Steingass H. , Schollenberger M. , Rodehutscord M. 
Published: December 2018

AbstractThe current study was conducted to evaluate the component composition, anti-nutritional factors, in vitro gas production (GP) and methane (CH4) production profiles of fruit by-products (pineapple pulp, mango seed kernels, banana and papaya peel, Moringa stenopetala and Moringa oleifera seeds) and leaves of root crops (sweet potato [Ipomoea batatas], cassava [Manihot esculenta], yam [Dioscorea abyssinica], enset [Ensete ventricosum] and samma [Urtica simensis]). Root crop leaves had high crude protein (CP) ranging from 211 to 318 g/kg dry matter (DM) in yam and samma, respectively. M. stenopetala seeds contained the highest CP (450 g/kg DM). Samma leaves were rich in calcium (58.6 g/kg DM) and iron (1186 mg/kg DM). Leaves of root crops had similar concentrations of essential amino acids with appreciable values. Total phenols were highest in mango seed kernels (158 g/kg DM). The asymptotic GP at 96 h incubation of pineapple pulp, papaya and banana peel was 397, 358 and 279 ml/g DM, respectively, and differed significantly from each other. Sweet potato and yam leaves produced 238 and 225 ml/g DM GP, respectively, being significantly higher than those of other root crops. CH4 production was significantly lowest in Moringa seeds, mango seed kernels and sweet potato leaves. In conclusion, fruit by-products have the potential as energy sources and root crop leaves as protein supplements for ruminant and non-ruminant animals. Moringa seeds, mango seed kernels and sweet potato leaves were identified as potential candidates in mitigating CH4 emissions in tropical livestock with animal-based experiments recommended to validate the in vitro findings.
HOMA-IR increase after antidepressant treatment in depressed patients with the Met allele of the Val66Met BDNF genetic polymorphism
Authors: Martin Séverine , Colle Romain , El Asmar Khalil , Rigal Adrien , Vievard Albane , Feve Bruno , Becquemont Laurent , Verstuyft Céline , Corruble Emmanuelle 
Published: December 2018

AbstractBackgroundThe brain-derived neurotrophic factor (BDNF) Val66Met polymorphism is associated with response to antidepressant drugs in depressed patients and with metabolic side effects after antipsychotic treatment. This study aims to assess the association between this polymorphism and insulin resistance after antidepressant treatment in depressed patients.MethodsOne hundred forty-eight Caucasian patients with a current unipolar major depressive episode (DSM IV-TR) were genotyped for the BDNF Val66Met polymorphism and assessed at baseline and after 3 and 6 months of antidepressant treatment for the ‘Homoeostasis model assessment of insulin resistance’ (HOMA-IR) index, a valid measure of insulin resistance based on fasting plasma insulinaemia and glycaemia. Because validity assumptions were fulfilled, data were analysed using analysis of variance for repeated measures.ResultsThe 52 (35%) Met carriers and 96 (65%) Val/Val patients were not different at baseline for clinical characteristics and HOMA-IR. A significant Val66Met × time interaction (p= 0.02), a significant time effect (p= 0.03) and a significant Val66Met effect (p= 0.0497) were shown for HOMA-IR. A significant Val66Met × time interaction (p= 0.01) and a significant time effect (p= 0.003) were shown for fasting glycaemia. HOMA-IR and fasting glycaemia changes after antidepressant treatment were significantly higher in Met carrier than in Val/Val patients (HOMA-IR changes: Met: 0.71 ± 3.29v.Val/Val: −0.16 ± 1.34,t= 2.3, df = 146,p= 0.02, glycaemia changes: Met: 0.09 ± 0.30v.Val/Val: 0.02 ± 0.16,t= −2.0, df = 146,p= 0.045).ConclusionsThe Met allele of the Val66Met BDNF polymorphism confers to depressed patients a higher risk of insulin-resistance after antidepressant treatment. These patients could benefit from specific monitoring of metabolism and preventive measures.
Signatures of automaticity during practice: Explicit instruction about L1 processing routines can improve L2 grammatical processing
Authors: MCMANUS KEVIN , MARSDEN EMMA 
Published: December 2018

ABSTRACTThis study examined the extent to which explicit instruction about first language (L1) and second language (L2) processing routines improved the accuracy, speed, and automaticity of learners’ responses during sentence interpretation practice. Fifty-three English-speaking learners of L2 French were assigned to one of the following treatments: (a) a “core” treatment consisting of L2 explicit information (EI) with L2 interpretation practice (L2-only group); (b) the same L2 core+L1 practice with L1 EI (L2+L1 group); or (c) the same L2 core+L1 practice but without L1 EI (L2+L1prac group). Findings indicated that increasing amounts of practice led to more accurate and faster performance only for learners who received L1 EI (L2+L1 group). Coefficient of variation analyses (Segalowitz & Segalowitz, 1993) indicated knowledge restructuring early on that appeared to lead to gradual automatization over time (Solovyeva & DeKeyser, 2017; Suzuki, 2017). Our findings that EI and practice about L1 processing routines benefited the accuracy, speed, and automaticity of L2 performance have major implications for theories of L2 learning, the role of L1 EI in L2 grammar learning, and L2 pedagogy.
Lifecourse and housing careers of childless and poor older Malaysians
Authors: Ng Yin Mei , Tilse Cheryl , Wilson Jill 
Published: December 2018

AbstractSecure, affordable housing is strongly linked to wellbeing in older age. This paper reports on a study of childless and poor older Malaysians who are potentially a vulnerable group in relation to accumulating such housing resources for older age. Childless is defined as a person without biological, step or adopted children, and poverty is defined following the national guideline. The research explores the cumulative advantages and disadvantages over the lifecourse that may influence their routes to attaining, or failing to attain, secure and stable housing in older age. Semi-structured interviews with a purposive sample of 34 childless and poor older Malaysians in Kuala Lumpur, Malaysia, were analysed using a lifecourse perspective to identify the events/experiences that had shaped their housing arrangements in old age. Housing arrangements are hierarchical in structure and can be categorised into four types: home-ownership, public-rental, private-rental and informal housing arrangements. The capacity to afford secure housing (i.e. public rental or ownership) decreased with ill-health and reduced opportunities to work. Structural and policy factors such as eligibility for public housing had also contributed to shaping current housing arrangements. Family poverty, low levels of education and, consequently, reduced employment opportunities affected the ability to accumulate the financial resources needed to afford housing in older age. Some individual decisions and situational disadvantages also contributed to reductions in housing choice. From the social and cultural context, some participants with greater networks had more choices and advantages in the accumulation of housing resources. Initiatives to provide retirement entitlements for workers have not favoured those in low-level informal employment or have come too late to assist those who are now older people. In conclusion, more disadvantages than advantages were accumulated earlier in their life, impacting on their ability to have affordable, secure and stable housing in older age.
Nest building by Darwin’s finches as an overlooked seed dispersal mechanism
Authors: Camacho Carlos , Beausoleil Marc-Olivier , Rabadán-González Julio , Richard Roxanne 
Published: December 2018

AbstractCaliochory, or seed dispersal by birds as nest material, has been reported for several species, but its effectiveness remains unclear in most cases. Darwin’s finches are traditionally regarded as seed predators, but the observation of two nests challenges this assumption by demonstrating that they can act as seed dispersers via caliochory. Darwin’s finches incorporate cotton-like materials into their nests, including seeds of Darwin’s cotton (Gossypium darwinii), a shrub endemic to the Galápagos (Ecuador). Bird nests typically break down after intense rainfall, so the seeds incorporated into nests might benefit from suitable conditions for germination. By simulating the germination conditions experienced over a 72-h period by cotton seeds in a naturally fallen nest, this study qualitatively confirms the long-term viability of at least a small fraction of the seeds at the surface of the nest. Darwin’s finches might therefore provide seed-dispersal services to Darwin’s cotton and possibly, other native and exotic plants of the Galápagos commonly incorporated into nests. However, larger confirmatory studies are needed.
Are Changes Needed for Therapeutic Recreation Undergraduate Curricula? Perceived Competencies of Therapeutic Recreationists and Recreation Staff Working with Seniors in Long Term Care Homes
Authors: Prentice Kristin , McCleary Lynn , Narushima Miya 
Published: December 2018

RÉSUMÉL’objectif de cette étude était d’identifier les lacunes dans les compétences gérontologiques autoperçues par le personnel en loisir dans les centres de soins de longue durée en Ontario. Deux séries de compétences gérontologiques ont été présentées dans un sondage en ligne qui a été distribué à du personnel en loisir œuvrant dans 500 centres de soins de longue durée. Parmi eux, 487 membres du personnel ont répondu au sondage. Ce sondage comportait des questions concernant les compétences actuelles du personnel et les compétences dont ils avaient eu connaissance avant d’entrer sur le marché du travail. Les facteurs perçus comme favorables à une plus grande confiance en ces compétences gérontologiques étaient l’expérience, la formation continue et les sessions de formation en cours d’emploi. Une meilleure compréhension des lacunes dans les compétences gérontologiques est nécessaire pour améliorer la formation en loisirs thérapeutiques, dont la formation continue dans ce domaine.
The organization of burial places in post-medieval English cities: Bristol and Exeter c. 1540–1850
Authors: BARRY JONATHAN 
Published: December 2018

ABSTRACT:This article analyses the changing options for the provision of burial places between the Reformation and the mid-nineteenth century in two major provincial cities, Bristol and Exeter. The two cities experienced very different patterns of change, especially in their Anglican provision, reflecting medieval differences of organization as well as the differential impact of dissent. Common factors include the effect of epidemics (plague, cholera) and population pressure, but also great conservatism regarding use of inner-city burial places. The major changes are associated with the three great shocks to church–state relations: the Reformation, the mid-seventeenth-century crisis and the reform period of the 1830s and 1840s.
Extreme exercise dislike of a toddler due to a patent foramen ovale
Authors: Grootaers Charlotte , Roggen Mieke , Gewillig Marc 
Published: December 2018

AbstractA 5-year-old girl presented with chronic fatigue and extreme exercise intolerance. After countless doctor visits, investigations, and hospital admissions, striking desaturation during exercise test pointed to a cardiovascular problem. Desaturation as a result of right-to-left shunting through a patent foramen ovale during upright exercise was hypothesised. A cardiac catheterisation confirmed the presence of an unusually cranially located patent foramen ovale; the defect was subsequently closed. Physical re-evaluation 6 weeks later showed spectacular physical and mental improvement and stabile saturation during exercise.
Broadcast network model of pulsars as beacons of extraterrestrial civilizations
Authors: Haliki Emir 
Published: December 2018

AbstractAccording to the Kardashev scale, likely extraterrestrial civilizations above Type-I might use natural energy sources of the Universe, which is also true for transmitting their signals out to distances. A variety of studies have shown that radio pulsars are most likely candidates for this. First, the current study examined how the radio beams of pulsars scan across their environment. Later when the radio beams of pulsars have been modulated, a network model has been proposed on how many habitable planets possible to be home for other assumed advanced civilizations could be reached. It has been found that size of each pulsar's broadcast network depends on the inclination angle. If a civilization controls multiple pulsars, it could comb a considerable fraction of their own celestial sphere and pulsars share their signals in a decentralized fashion as in the mail servers. Moreover, it is briefly cited how beam-modulating mechanisms can be built and searched around pulsars.Highlights
• It has been shown how pulsars would behave like beacons only when they have been used by modulating their radio signals.• It has also been indicated how each pulsar could constitute an increasingly growing broadcast network by sweeping geometries and in what way it would emerge as number of controlled pulsars increases.• It has been interpreted how a modulation mechanism could be established and searched under basic physical principles.
Genetic analysis of a heritage variety collection
Authors: Preston J. M. , Ford-Lloyd B. V. , Smith L. M. J. , Sherman R. , Munro N. , Maxted N. 
Published: December 2018

AbstractLandraces (including heritage varieties) are an important agrobiodiversity resource offering considerable value as a buffer against crop failures, as a crop for niche markets, and as a source of diversity for crop genetic improvement activities underpinning future food security. Home gardens are reservoirs of landrace diversity, but some of the accessions held in them are vulnerable or threatened with extinction. Those associated with seed saving networks have added security, for example, ca. 800 varieties are stored in the Heritage Seed Library (HSL) of Garden Organic, UK. In this study, Amplified Fragment Length Polymorphisms-based genetic analysis of accessions held in the HSL was used to (a) demonstrate the range of diversity in the collection, (b) characterize accessions to aid collection management and (c) promote broader use of the collection. In total, 171 accessions were included from six crops: Vicia faba L., Pisum sativum L., Daucus carota L., Cucumis sativus L., Lactuca sativa L. and Brassica oleracea L. var. acephala (DC.) Metzq. Average expected heterozygosity ranged from 0.18 to 0.28 in D. carota; 0.02–0.18 in P. sativum; 0.05–0.18 in L. sativa; 0.15–0.26 in B. oleracea var. acephala; 0.15–0.37 in C. sativus and 0.07–0.36 in V. faba. Genetic diversity and Fst values generally reflected the breeding system and cultivation history of the different crops. Comparisons of the diversity found in heritage varieties with that found in commercial varieties did not show a consistent pattern. Principal coordinates analysis and Unweighted Pair Group Method with Arithmetic Mean cluster analysis were used to identify four potential duplicate accession pairs.
Laboratory Investigation of Rate of Electrostatic Dust Lofting Over Time on Airless Planetary Bodies
Authors: Hood N. , Carroll A. , Mike R. , Wang X. , Schwan J. , Hsu H.‐W. , Horányi M. 
Published: December 2018

AbstractWe present the laboratory results on electrostatic dust lofting rates expected on airless planetary bodies. Dust lofting is shown to be a time‐dependent process that begins at a relatively fast rate on an initialized surface and slows down as time progresses. The slowdown is likely due to the filling of interparticle microcavities as a result of dust movement or the removal of loose upper layers, which reduces the microcavity charging effect. It is suggested that the transient dust lofting rate under the charging conditions at 1 AU may reach several particles·cm−2·s−1 lasting over a short duration. Such intense electrostatic dust lofting could be responsible for transient phenomena such as the lunar horizon glow and could be intermittently sustained by other processes that reinitialize the surface conditions. The average dust lofting rate on a geological timescale is expected to remain low due to the rate decrease over time.
Lake Level and Surface Topography Measured With Spaceborne GNSS‐Reflectometry From CYGNSS Mission: Example for the Lake Qinghai
Authors: Li Weiqiang , Cardellach Estel , Fabra Fran , Ribó Serni , Rius Antonio 
Published: December 2018

AbstractThis paper demonstrates inland water altimetry of spaceborne Global Navigation Satellite System‐Reflectometry (GNSS‐R) using the Cyclone GNSS (CYGNSS) mission data. From 12 tracks of raw data overpassing the Lake Qinghai, the bistatic group delay and carrier phase delay are extracted from the quasi‐specular GNSS reflections. The water levels derived from the group delay observations are consistent with the Cryosat‐2 and in situ gauge measurements. The surface topography profiles from the phase delay measurements show good self‐consistence along the coincident tracks. Decimeter‐level surface height anomalies are resolved with the phase delay measurements, which can be associated with the accuracy degradation of the geoid model in this region. Systematic errors remain in both group delay and phase delay altimetry measurements, which are attributed to the receiver orbit errors and ionospheric correction residuals. These limitations can be eliminated in further GNSS‐R missions dedicated to altimetry applications.
A Climatological Analysis of the Benguela Coastal Low‐Level Jet
Authors: Lima Daniela C. A. , Soares Pedro M. M. , Semedo Alvaro , Cardoso Rita M. , Cabos William , Sein Dmitry V. 
Published: December 2018

AbstractThe Benguela coastal low‐level jet (CLLJ) is characterized by intense winds that occur around 400 m above sea level, within or at the top of the marine atmospheric boundary layer. The semipermanent St. Helen high‐pressure system, over the South Atlantic Ocean, and the inland thermal low‐pressure system, over the Namib Desert, are the synoptic forcing behind the Benguela CLLJ. This coastal jet is an important mesoscale feature in the Namibia and Angola coastal areas, since it is present virtually all year round, with a marked seasonal cycle. This study investigates the climatology of the frequency and the intensity of the Benguela CLLJ and its relationship with synoptic and local forcing's, using high‐resolution modeling. An uncoupled ROM (REMO‐OASIS‐MPIOM) hindcast simulation, with 25‐km horizontal resolution, for the period 1980–2014, is used to analyze the features of the Benguela CLLJ. It is shown that Benguela CLLJ is characterized by two local maxima of frequency of occurrence at around 26°S and 17.5°S. During austral summer, the jet has a frequency of occurrence of about 60% and it is in its southern core. During autumn and winter, the frequency of occurrence decreases to nearly half and migrates equatorward. During spring, the jet has a frequency of occurrence of 45% and is found at the northern core. The jet wind speed is higher in the south core but is found at higher altitudes in the north core. The seasonal cycle of horizontal momentum budget defines the seasonality of Benguela CLLJ frequency of occurrence.
External validation of a bifactor model of oppositional defiant disorder
Authors: Waldman Irwin D. , Rowe Richard , Boylan Khrista , Burke Jeffrey D. 
Published: December 2018

AbstractDimensions of irritability and defiant behavior, though correlated within the structure of ODD, convey separable developmental risks through adolescence and adulthood. Irritability predicts depression and anxiety, whereas defiant behavior is a precursor to antisocial outcomes. Previously we demonstrated that a bifactor model comprising irritability and defiant behavior dimensions, in addition to a general factor, provided the best-fitting structure of ODD symptoms in five large datasets. Herein we extend our previous work by externally validating the bifactor model of ODD using multiple regression and multivariate behavior genetic analyses. We used parent ratings of DSM IV ODD symptoms, and symptom dimensions for ADHD (i.e., inattention and hyperactivity−impulsivity), conduct disorder (CD), depression/dysthymia, and generalized anxiety disorder (GAD) from 846 6−18-year-old twin pairs. We found that the ODD irritability factor was associated only with depression/dysthymia and GAD and the ODD defiant behavior factor was associated only with inattention, hyperactivity−impulsivity, and CD, whereas the ODD general factor was associated with all five symptom dimensions. Multivariate behavior genetic analyses found all five symptom dimensions shared genetic influences in common with the ODD general, irritability, and defiant behavior factors. In contrast, the defiant behavior factor shared genetic influences uniquely with inattention and hyperactivity−impulsivity, whereas the irritability factor shared genetic influences uniquely with depression/dysthymia and GAD, but not vice versa. This suggests that genes that influence irritability in early childhood also predispose to depression and anxiety in adolescence and adulthood. These multivariate genetic findings also support the external validity of the three ODD dimensions at the etiological level. Our study provides additional support for subtyping ODD based on these symptom dimensions, as in the revisions in the ICD-11, and suggests potential mechanisms underlying the development from ODD to behavioral or affective disorders.