bluuebunny/crossref_metadata_2025_split huggingface dataset:
The source of sulfur in sulfide deposits in the Siberian Platform traps (from isotope data)
Authors: Ryabov V.V. , Simonov O.N. , Snisar S.G. , Borovikov A.A. 
Published: August 2018

Abstract
The source of sulfur in giant Norilsk-type sulfide deposits is discussed. A review of the state of the problem and a critical analysis of existing hypotheses are made. The distribution of δ34S in sulfides of ore occurrences and small and large deposits and in normal sedimentary, metamorphogenic, and hypogene sulfates is considered. A large number of new δ34S data for sulfides and sulfates in various deposits, volcanic and terrigenous rocks, coals, graphites, and metasomatites are presented. The main attention is focused on the objects of the Norilsk and Kureika ore districts. The δ34S value varies from –14 to + 22.5‰ in sulfides of rocks and ores and from 15.3 to 33‰ in anhydrites. In sulfide–sulfate intergrowths and assemblages, δ34S is within 4.2–14.6‰ in sulfides and within 15.3–21.3‰ in anhydrites. The most isotopically heavy sulfur was found in pyrrhotite veins in basalts (δ34S = 21.6‰), in sulfate veins cutting dolomites (δ34S = 33‰), and in subsidence caldera sulfates in basalts (δ34S = 23.2–25.2‰). Sulfide ores of the Tsentral’naya Shilki intrusion have a heavy sulfur isotope composition (δ34S = + 17.7‰ (n = 15)). Thermobarogeochemical studies of anhydrites have revealed inclusions of different types with homogenization temperatures ranging from 685 °C to 80 °C. Metamorphogenic and hypogene anhydrites are associated with a carbonaceous substance, and hypogene anhydrites have inclusions of chloride-containing salt melts. We assume that sulfur in the trap sulfide deposits was introduced with sulfates of sedimentary rocks (δ34S = 22–24‰). No assimilation of sulfates by basaltic melt took place. The sedimentary anhydrites were “steamed” by hydrocarbons, which led to sulfate reduction and δ34S fractionation. As a result, isotopically light sulfur accumulated in sulfides and hydrogen sulfide, isotopically heavy sulfur was removed by aqueous calcium sulfate solution, and “residual” metamorphogenic anhydrite acquired a lighter sulfur isotope composition as compared with the sedimentary one. The wide variations in δ34S in sulfides and sulfates are due to changes in the physicochemical parameters of the ore-forming system (first of all, temperature and PCH4) during the sulfate reduction. The regional hydrocarbon resources were sufficient for large-scale ore formation.
Thermal field and geothermal models of the lithosphere in the continent–ocean transition zone of northeastern Eurasia
Authors: Gornov P.Yu. , Gil’manova G.Z. 
Published: August 2018

AbstractThe region under study is located in the active “transition zone” from the Eurasian continent to the Pacific Ocean. The zone occupies not only the continent–ocean border area (continental coastline, marginal seas, island arcs, and deep-sea trenches) but also the margins of intracontinental regions of the Eurasian continent with different structures and regimes of development. The transition zone is a natural buffering and damping regulator of the interaction between the Eurasian and Pacific plates and is characterized by intense orogenesis, contemporary volcanism, active seismicity, diverse geothermal regime, and highly nonuniform measured heat-flow values. Available geothermal data for the region are not sufficiently generalized. After the latest maps compiled in the 1990s, new data have been obtained and new geoinformation technologies have been developed. In the study presented in this paper, available geothermal information has been generalized and a detailed heat flow distribution map has been compiled and used to calculate Moho temperatures, to determine the thickness of the “geothermal” lithosphere, and to construct distribution maps of these parameters.
Simulation study of particle clouds in oscillating shear flow
Authors: Howard Amanda A. , Maxey Martin R. 
Published: August 2018

Simulations of cylindrical clouds of concentrated, neutrally buoyant, suspended particles are used to investigate the dispersion of the particles in an oscillating Couette flow. In experiments by Metzger & Butler (Phys. Fluids, vol. 24 (2), 2012, 021703) with spherical clouds of non-Brownian particles, the clouds are shown to elongate at volume fraction $\unicode[STIX]{x1D719}=0.4$ but form ‘galaxies’ where the cloud rotates as a single body with extended arms when $\unicode[STIX]{x1D719}>0.4$ and the ratio of the cloud radius to particle radius, $R/a$, is sufficiently large. The simulations, which use the force coupling method, are completed for $\unicode[STIX]{x1D719}=0.4$ and $\unicode[STIX]{x1D719}=0.55$, with $R/a$ between $5$ and $20$. The cloud shape for $\unicode[STIX]{x1D719}=0.4$ is shown to be reversible at low strain amplitude, and extend in the streamwise direction along the centre of the cloud at moderate strain amplitude. For higher strain amplitude the clouds extend near the channel walls to form a parallelogram. The results demonstrate that the particle contact force determines the transition between these states and plays a large role in the irreversibility of the parallelograms. Rotating galaxies form at $\unicode[STIX]{x1D719}=0.55$ with $R/a\geqslant 15$, and are characterized by a particle-induced flow in the wall-normal direction.
Précis of Regard for Reason in the Moral Mind
Authors: May Joshua 
Published: August 2018

Abstract
Regard for Reason in the Moral Mind argues that a careful examination of the scientific literature reveals a foundational role for reasoning in moral thought and action. Grounding moral psychology in reason then paves the way for a defense of moral knowledge and virtue against a variety of empirical challenges, such as debunking arguments and situationist critiques. The book attempts to provide a corrective to current trends in moral psychology, which celebrate emotion over reason and generate pessimism about the psychological mechanisms underlying commonsense morality. Ultimately, there is rationality in ethics not just despite but in virtue of the neurobiological and evolutionary materials that shape moral cognition and motivation.
Trends in women's informal eldercare in China, 1991–2011: an age–period–cohort analysis
Authors: Luo Meng Sha , Chui Ernest Wing Tak 
Published: August 2018

AbstractAlthough many studies have described society-wide changes in adult women's care-giving for ageing family members, few have examined how this informal eldercare has changed across care-givers’ lifecourse and the temporal changes across different time periods and birth cohorts. Using a hierarchical age–period–cohort model to disentangle the confounding effects of age, period and cohort, this study examines the lifecourse and temporal changes in women's informal eldercare in China that can be attributed to the processes of ageing and social transformation. It advances understanding of the extent to which urbanisation and education have affected women's care-giving over time. The results reveal positive age, period and cohort effects which, together, indicate that the tradition ofxiao(filial piety) is in a stable state or even resurgent. Higher education and urban residency are both positively related to women's care-giving behaviour. As women age, the gap between residency differences in eldercare decreases. This study supports the argument thatxiaoculture is resilient and resistant to change, and that education can function as an enabler to promote it.
Detection of modified measles and super-spreader using a real-time reverse transcription PCR in the largest measles outbreak, Yamagata, Japan, 2017 in its elimination era
Authors: Seto J. , Ikeda T. , Tanaka S. , Komabayashi K. , Matoba Y. , Suzuki Y. , Takeuchi S. , Yamauchi T. , Mizuta K. 
Published: August 2018

AbstractWe aimed to verify the effectiveness of real-time reverse transcription (rRT) polymerase chain reaction (PCR) for detecting cases of modified measles (M-Me) and for predicting super-spreader candidates through the experience of a measles outbreak dominated by M-Me in Yamagata, Japan, during March–April 2017. We applied rRT-PCR to specimens from 35 cases of M-Me, nine cases of typical measles (T-Me) and nine cases of prodromal stage of T-Me (P-Me). From rRT-PCR among the M-Me cases, peripheral blood mononuclear cells (PBMC) showed the highest positive rate (80.0%), followed by throat swab (48.6%), urine (33.3%) and serum (3.1%). The negative result of PBMC in M-Me cases was recovered by the result of a throat swab. In specimens of PBMC, throat swab and urine, M-Me group showed the significantly higher cycle of threshold (i.e., lower viral load) in the rRT-PCR than T-Me and P-Me groups, respectively. Furthermore, three super-spreaders in T-Me or P-Me showed an extremely low cycle of threshold in their throat swab specimens. rRT-PCR using PBMC and throat swab might be helpful for clinical management and measles control by certain detection of M-Me cases and by predicting super-spreading events resulting from measles cases with the high viral load.
An improved method for the rapid isolation of RNA from Arabidopsis and seeds of other species high in polyphenols and polysaccharides
Authors: Footitt Steven , Awan Sajjad , Finch-Savage William E. 
Published: August 2018

AbstractSeeds are notoriously high in polyphenols and polysaccharides, which reduce RNA quality and yield, and interfere with downstream applications. We present simple modifications to a rapid RNA extraction protocol for use with seeds. The inclusion of polyethylene glycol in place of polyvinylpyrrolidone reduced polyphenol and polysaccharide contamination. In addition, replacing NaCl with KCl improved the RNA yield from Arabidopsis seeds still bound by mucilage. On extraction of Arabidopsis seed recovered from field soils clean RNA pellets with no accompanying gelatinous matrix (polysaccharide) were seen, with A260/230 ratios greater than 1.8 confirming the lack of polysaccharide carry-over. WhenBrassica oleraceaandSinapis arvensisseeds were extracted, 260/230 ratios greater than 1.8 were seen. RNA yields in excess of 10 µg per 100 mg seed suitable for RT-QPCR were obtained.
Relative validity and reproducibility of dietary quality scores from a short diet screener in a multi-ethnic Asian population
Authors: Whitton Clare , Ho Jolene Chien Yee , Rebello Salome A , van Dam Rob M 
Published: August 2018

AbstractObjectiveShort screeners for assessing dietary quality are lacking in Asia. We recently developed a short thirty-seven-item diet screener (DS). The present study aimed to evaluate reproducibility and relative validity of the DS in assessinga prioridietary quality indices (DQI; i.e. the Alternative Healthy Eating Index-2010 (AHEI-2010), alternate Mediterranean Diet (aMed) and Dietary Approaches to Stop Hypertension (DASH) diet) and intakes of selected foods.DesignDS administration and biomarker measurement took place twice within a 4-month interval. A 163-item FFQ was administered one month after the second DS administration.SettingSingapore, a multi-ethnic urban Asian country.SubjectsSingapore residents (n161) aged 18–79 years, of Chinese, Malay and Indian ethnicity.ResultsReproducibility coefficients for the two DS were 0·71 (DQI) and 0·65 (food groups). Correlations (ρ) between mean DS and FFQ DQI scores were 0·51 (AHEI-2010), 0·50 (aMed) and 0·61 (DASH; allP<0·05). Cohen’s weighted kappa indicated moderate agreement between the two measures (κw=0·48–0·58). DS DQI scores were associated with concentrations of β-cryptoxanthin (AHEI-2010,ρ=0·26;P<0·05), odd-chain SFA (aMed,ρ=0·24; DASH,ρ=0·25; bothP<0·05), and enterolactone, total carotenoids, PUFA and α-linolenic acid (all scores,ρ=0·17–0·30; allP<0·05). Scores were not associated with isoflavone or long-chainn-3 PUFA concentrations.ConclusionsA short screener can be used to assess DQI with good reproducibility and relative validity compared with a longer FFQ in an Asian population.
A new tetrapod from Romer's Gap reveals an early adaptation for walking
Authors: Smithson Timothy R. , Clack Jennifer A. 
Published: August 2018

ABSTRACTA new early tetrapod,Mesanerpeton woodi gen. et sp. nov., collected by Stan Wood from the Ballagan Formation, Tournaisian CM palynozone, at Willie's Hole, Scottish Borders, is described. It includes vertebrae like those ofCrassigyrinus,with poorly developed neural arches, a well ossified ulna with a large olecranon, and a humerus that is structurally intermediate between the pleisiomorphic condition of Devonian taxa and that of all later forms. A comparative analysis of this new material and other tetrapodomorph humeri revealed how an increase in humeral torsion transformed the course of the brachial artery and median nerve through the bone, from an entirely ventral path to one in which the blood vessel and nerve passed through the entepicondyle from the dorsal to the ventral surface. Increasing humeral torsion is suggested to improve walking in early tetrapods by potentially contributing to an increase in stride length, and is one of a number of changes to limb morphology during the Early Carboniferous that led to the development of terrestrial locomotion.
ACrassigyrinus-like jaw from the Tournaisian (Early Mississippian) of Scotland
Authors: Clack Jennifer A. , Porro Laura B. , Bennett Carys E. 
Published: August 2018

ABSTRACTThe early tetrapodCrassigyrinus scoticuswas a large aquatic predator from the mid Carboniferous (late Viséan or early Serpukovian) of Scotland, around 330 My in age. There are five main specimens with cranial remains: an articulated skeleton; two incomplete skulls; and two lower jaws.Crassigyrinusretains several apparently primitive features of the palatal dentition and lower jaw, and its phylogenetic position is disputed. A partial lower jaw resembling that ofCrassigyrinuswas discovered at Burnmouth in the Borders region of Scotland. The horizon in which it was found is dated as late Tournaisian, CM palynozone, around 350 My in age. Though it lacks dentition, the jaw preserves much of the postsplenial, angular and surangular, whose appearance externally and internally is almost identical to that ofC. scoticus. Internally, the jaw shows a similarly limited extent of the suturing between the splenial series and the prearticular, a primitive condition. Externally, the type and distribution of dermal ornamentation closely matches that ofC. scoticus, as does the deeply excavated and marginally positioned lateral line groove. As well as external and internal features, all specimens ofC. scoticusare of similar skull size, though the Burnmouth jaw is somewhat smaller. If correctly attributable toCrassigyrinus, this specimen extends the existence of the genus by approximately 20 million years towards the base of the Carboniferous.
Glencartholm revisited: describing for the first time Stan Wood's discovery and excavation of Mumbie Quarry, adjacent to the important Palaeozoic fossil site of Glencartholm
Authors: Wood Margaret 
Published: August 2018

ABSTRACTGlencartholm in Dumfries and Galloway, Southern Scotland, is one of the most important Palaeozoic fossil fish sites in the world, with a fauna containing more than 30 species. Originally discovered in the bank of the River Esk in 1879, further collecting in the 1930s removed all the accessible fossiliferous strata. These strata were not known to occur elsewhere and despite the site's international importance, details of the section including the fossil bearing beds have not been described. An excavation of a new exposure at Mumbie, 50 metres east of the original site, was undertaken by Stan Wood in the 1990s. Sediments were logged over an 18-metre section. Three separate fish beds were identified and more than 200 specimens of ray-finned fish collected, including one possible new species. Differences in scale colour enables fishes from the different horizons to be distinguished. This should allow material collected previously to be more accurately assigned and assist palaeoecological analysis of the site. In addition to ray-finned fish, cartilaginous fishes were collected together with plants, bivalves, crustaceans, scorpions and horseshoe crabs which have not previously been reported from Glencartholm.
A Low-profile planar monopole internal antenna for GSM/DCS/PCS/IMT/UMTS/WLAN/ISM/LTE operation in the Mobile phones
Authors: Belrhiti Lakbir , Riouch Fatima , Tribak Abdelwahed , Terhzaz Jaouad , Sanchez Angel Mediavilla 
Published: August 2018

AbstractIn this paper, a novel low-profile planar monopole internal antenna for GSM/DCS/PCS/ IMT/UMTS/WLAN/ISM/LTE operation in the mobile phones is designed and developed. The proposed antenna is composed of multi-branches, F-shaped slots in the system ground plane and tapered feeding line which can improve the impedance matching at the feeding point. The antenna occupying a small area of 18.5 × 46 mm2is placed on the top no-ground portion of the system circuit board, which makes it suitable for practical mobile applications. A prototype of the proposed antenna is fabricated and tested. In addition, the planar monopole antenna can provide two wide lower and upper bands to respectively cover the frequency range of 848–1152 MHz, and 1736–3000 MHz, for the GSM850/GSM900/DCS1800/PCS1900/IMT2000/UMTS2100/WLAN2400/ISM2450/LTE2300/LTE2500 operation in the mobile phone. Good radiation patterns and antenna peak gain for frequencies over the operating bands have been observed. The antenna is simulated and designed by using Ansoft HFSS and CST Microwave Studio. Details of the antenna design, results on the reflection coefficient, radiation characteristics, directivity, antenna gain, realized gain, and efficiency of the antenna are given and discussed. Finally, the specific absorption rate (SAR) of the proposed antenna placed at the bottom of the mobile phone is also investigated. The obtained SAR values meet the limit of 1.6 W/kg for the 1 g head tissue and 2.0 W/kg for the 10 g head tissue.
Observation and Modeling of Hydrothermal Response to the 2015 Eruption at Axial Seamount, Northeast Pacific
Authors: Xu Guangyu , Chadwick William W. , Wilcock William S. D. , Bemis Karen G. , Delaney John 
Published: August 2018

AbstractThe 2015 eruption at Axial Seamount, an active volcano at a depth of 1500 m in the Northeast Pacific, marked the first time a seafloor eruption was detected and monitored by an in situ cabled observatory—the Cabled Array, which is part of the Ocean Observatories Initiative. After the onset of the eruption, eight cabled and noncabled instruments on the seafloor recorded unusual, nearly synchronous and spatially uniform temperature increases of 0.6–0.7°C across the southern half of the caldera and neighboring areas. These temperature signals were substantially different from those observed after the 2011 and 1998 eruptions at Axial and hence cannot be explained by emplacement of the 2015 lava flows on the seafloor. In this study, we investigate several possible explanations for the 2015 temperature anomalies and use a numerical model to test our preferred hypothesis that the temperature increases were caused by the release of a warm, dense brine that had previously been stored in the crust. If our interpretation is correct, this is the first time that the release of a hydrothermal brine has been observed due to a submarine eruption. This observation would have important implications for the salt balance of hydrothermal systems and the fate of brines stored in the subsurface. The observation of the 2015 temperature anomalies and the modeling presented in this study also demonstrate the importance of contemporaneous water column observations to better understand hydrothermal impacts of submarine eruptions.
Genetic association and meta-analysis of a schizophrenia GWAS variant rs10489202 in East Asian populations
Authors: Yang Yongfeng , Wang Lu , Li Lingyi , Li Wenqiang , Zhang Yan , Chang Hong , Xiao Xiao , Li Ming , Lv Luxian 
Published: August 2018

AbstractPrevious genome-wide association studies (GWAS) suggest that rs10489202 in the intron of MPC2 (mitochondrial pyruvate carrier 2) is a risk locus for schizophrenia in Han Chinese populations. To validate this discovery, we conducted a replication analysis in an independent case-control sample of Han Chinese ancestry (437 cases and 2031 controls), followed by a meta-analytic investigation in multiple East Asian samples. In the replication analysis, rs10489202 showed marginal association with schizophrenia (two-tailed P = 0.071, OR = 1.192 for T allele); in the meta-analysis using a total of 14,340 cases and 20,349 controls from ten East Asian samples, rs10489202 was genome-wide significantly associated with schizophrenia (two-tailed P = 3.39 × 10–10, OR = 1.161 for T allele, under the fixed-effect model). We then performed an explorative investigation of the association between this SNP and bipolar disorder, as well as a major depressive disorder, and the schizophrenia-predisposing allele was associated with an increased risk of major depressive disorder in East Asians (two-tailed P = 2.49 × 10–2, OR = 1.103 for T allele). Furthermore, expression quantitative trait loci (eQTL) analysis in lymphoblastoid cell lines from East Asian donors (N = 85 subjects) revealed that rs10489202 was specifically and significantly associated with the expression of TIPRL gene (P = 5.67 × 10–4). Taken together, our data add further support for the genetic involvement of this genomic locus in the susceptibility to schizophrenia in East Asian populations, and also provide preliminary evidence for the underlying molecular mechanisms.
Single-molecule detection with a millimetre-sized transistor
Authors: Macchia Eleonora , Manoli Kyriaki , Holzer Brigitte , Di Franco Cinzia , Ghittorelli Matteo , Torricelli Fabrizio , Alberga Domenico , Mangiatordi Giuseppe Felice , Palazzo Gerardo , Scamarcio Gaetano , Torsi Luisa 
Published: August 2018

AbstractLabel-free single-molecule detection has been achieved so far by funnelling a large number of ligands into a sequence of single-binding events with few recognition elements host on nanometric transducers. Such approaches are inherently unable to sense a cue in a bulk milieu. Conceptualizing cells’ ability to sense at the physical limit by means of highly-packed recognition elements, a millimetric sized field-effect-transistor is used to detect a single molecule. To this end, the gate is bio-functionalized with a self-assembled-monolayer of 1012capturing anti-Immunoglobulin-G and is endowed with a hydrogen-bonding network enabling cooperative interactions. The selective and label-free single molecule IgG detection is strikingly demonstrated in diluted saliva while 15 IgGs are assayed in whole serum. The suggested sensing mechanism, triggered by the affinity binding event, involves a work-function change that is assumed to propagate in the gating-field through the electrostatic hydrogen-bonding network. The proposed immunoassay platform is general and can revolutionize the current approach to protein detection.