bluuebunny/crossref_metadata_2025_split huggingface dataset:
Silicified microbiota from the Paleoproterozoic Dahongyu Formation, Tianjin, China
Authors: Shi Min , Feng Qing-Lai , Khan Maliha Zareen , Awramik Stanley , Zhu Shi-Xing 
Published: March 2017

AbstractCherts and silicified dolostones of the ca. 1600 Ma Dahongyu Formation (uppermost Changcheng Group) from North China contain well-preserved microfossils. Cyanobacteria filaments and coccoids dominate the studied Dahongyu microbiota in the Jixian section. These microfossils show the characteristics of endobenthic, epibenthic, and allochthonous microfossils, which illustrated well a vertical distributional view of an intertidal microbiota. Large numbers and size of allochthonous microfossils are the distinguishing characteristics of this new microbiota. A few of these possess ornaments or odd morphology, which suggest their potential eukaryotic nature. Through regional comparisons, it is revealed that there was significant regional disparity within the Yanshan Basin of microbiotas during deposition of the Dahongyu Formation. The newly studied Dahongyu microbiota is similar to the microbiota from the underlying Changcheng Group, with only slight differences. The absence of typical eukaryotes and the emergence of unique microfossils (especially small fusiform microfossils) make the Dahongyu Formation and the subsequent strata of the Jixian Group distinct from contemporaneous eukaryote-bearing strata.In the Dahongyu assemblage, 19 species were recognized, six species were identified informally and seven species were identified in open nomenclature. One new taxon of microfossil was described:Xiaohongyuia sinicaShi and Feng new genus new species.
Comparing Three Methods of Measuring Race/Ethnicity
Authors: Shah Paru R. , Davis Nicholas R. 
Published: March 2017

AbstractIn this research note, we explore compare and contrast three methods for measuring race. We utilize as our baseline, or “true”, measure expert coded racial categories, and to this compare two alternatives. The first is a hybrid Bayesian analysis of racial/ethnic surname lists and population distributions, which allow us to develop a race probability score for each candidate. The second is a novel and innovative crowdsourcing method that allows many contributors to classify the racial identity of candidates. We analyze and discuss the potential benefits, pitfalls, and tradeoffs of each method. We conclude with the implications of these new measures for future election research as well as race and politics scholarship more broadly.
IRRIGATION MANAGEMENT RISKS AND ZN FERTILIZATION NEEDS IN ZN BIOFORTIFICATION BREEDING IN LOWLAND RICE
Authors: RUBIANES F.H.C. , SWAMY B.P. MALLIKARJUNA , JOHNSON-BEEBOUT S.E. 
Published: March 2017

SUMMARYAs zinc (Zn) fertilizer and water management affect the expression of Zn-enriched grain traits in rice, we studied the effect of Zn fertilizer and water management on Zn uptake and grain yield of different biofortification breeding lines and the possible biases in selection for high grain Zn content. The first field experiment showed that longer duration genotypes had higher grain Zn uptake rate than shorter duration genotypes during grain filling. In the first greenhouse experiment, neither application of Zn fertilizer at mid-tillering nor application at flowering significantly increased the grain Zn concentration. In the second greenhouse experiment, application of alternate wetting and drying (AWD) significantly increased the available soil Zn and plant Zn uptake but not grain Zn concentration. Terminal drying (TD) did not increase the available soil Zn or grain Zn contents. The second field experiment confirmed that differences in TD were not important in understanding differences between genotypes. Zn application is not always necessary to breeding trials unless there is a severe Zn deficiency and there is no need to carefully regulate TD prior to harvest.
Roman Field-System Earthworks in the Birklands and Belhaugh Hays, Nottinghamshire
Authors: Malone Steve 
Published: March 2017

ABSTRACTProcessing and analysis of LiDAR data in Nottinghamshire has identified the survival of earthwork field-systems beneath woodland in some of the oldest established parts of Sherwood Forest. The morphology and alignment of these field-systems strongly suggest that they represent a survival of the late Iron Age and Roman brickwork-plan field-systems of North Nottinghamshire and South Yorkshire with considerable potential to elucidate the history of abandonment of these fields and the establishment of Sherwood Forest.
Evergreen Plants in Roman Britain and Beyond: Movement, Meaning and Materiality
Authors: Lodwick Lisa A. 
Published: March 2017

ABSTRACTIn tandem with the large-scale translocation of food plants in the Roman world, ornamental evergreen plants and plant items were also introduced to new areas for ritual and ornamental purposes. The extent to which these new plants, primarily box and stone-pine, were grown in Britain has yet to be established. This paper presents a synthesis of archaeobotanical records of box, stone-pine and norway spruce in Roman Britain, highlighting chronological and spatial patterns. Archaeobotanical evidence is used alongside material culture to evaluate the movement of these plants and plant items into Roman Britain, their meaning and materiality in the context of human-plant relations in ornamental gardens and ritual activities. Archaeobotanical evidence for ornamental evergreen plants elsewhere in the Roman world is presented.
The association of mobility limitation and social networks in relation to late-life activity
Authors: LITWIN HOWARD , LEVINSON MAAYAN 
Published: March 2017

ABSTRACTThe current study examines the interaction between mobility limitations and social networks in relation to activity in later life. Although the importance of activity participation to successful ageing has been well established, it is still unclear what contributes to higher levels of activity. This research addresses this issue, using data from the Survey of Health, Ageing and Retirement in Europe. The analysis focuses on a sub-sample of respondents aged 60 and older, from 13 countries, who participated in two specific waves, in 2011 and 2013. Multivariate analysis of the longitudinal data was conducted using hierarchical generalised Poisson regression and incorporating a new comprehensive social network scale. The inquiry found that having multiple mobility limitations is associated with less activity and that having a resourceful social network contributes to more activity. The research further revealed that social network is particularly beneficial to those with multiple mobility limitations because it mitigates the negative association with activity. This conclusion furthers the understanding of the relationship between different key dimensions in the successful ageing paradigm. Specifically, the findings imply the significance of having a social network among those who are functionally challenged. This finding has important implications for active ageing policies.
Generating high-yield positrons and relativistic collisionless shocks by 10 PW laser
Authors: Jiao J. , Zhang B. , Yu J. , Zhang Z. , Yan Y. , He S. , Deng Z. , Teng J. , Hong W. , Gu Y. 
Published: March 2017

AbstractRelativistic collisionless shock charged particle acceleration is considered as a possible origin of high-energy cosmic rays. However, it is hard to explore the nature of relativistic collisionless shock due to its low occurring frequency and remote detecting distance. Recently, there are some works attempt to solve this problem by generating relativistic collisionless shock in laboratory conditions. In laboratory, the scheme of generation of relativistic collisionless shock is that two electron–positron pair plasmas knock each other. However, in laboratory, the appropriate pair plasmas have been not generated. The 10 PW laser pulse maybe generates the pair plasmas that satisfy the formation condition of relativistic collisionless shock due to its ultrahigh intensity and energy. In this paper, we study the positron production by ultraintense laser high Z target interaction using numerical simulations, which consider quantum electrodynamics effect. The simulation results show that the forward positron beam up to 1013/kJ can be generated by 10 PW laser pulse interacting with lead target. The estimation of relativistic collisionless shock formation shows that the positron yield satisfies formation condition and the positron divergence needs to be controlled. Our results indicate that the generation of relativistic collisionless shock by 10 PW laser facilities in laboratory is possible.
Albatrosses bathe before departing on a foraging trip: implications for risk assessments and marine spatial planning
Authors: GRANADEIRO JOSÉ P. , CAMPIONI LETIZIA , CATRY PAULO 
Published: March 2017

SummaryTracking studies of seabirds have generally focused in identifying areas used for foraging, in the hope of highlighting regions of energy transfer which may be important for seabird and general ecosystem conservation and special management. However, some sea areas may serve functions other than providing nutritional resources, which may be equally relevant, particularly if used by large numbers of individuals. In this paper, based on a study of 4 breeding colonies in the Falkland Islands and on 314 individuals tracked, we show that virtually all (97.8%) black-browed albatrosses Thalassarche melanophris (BBA) bathe in the close vicinity of the colony, remaining in the area for nearly an hour, before departing on a foraging trip. This compares with only 20 to 40% of the individuals landing close to the colony at the end of a foraging trip. The observed utilization of marine areas by BBA in a radius of 1 to 5 km around the nesting colony is one order of magnitude higher than elsewhere, including foraging hotspots. Clearly, even long-range flying birds such as albatrosses can make an intensive use of the sea-surface in the immediate vicinity of the colonies, and therefore any threats to seabirds in these areas (disturbance, pollutants, collision with artificial structures and light attraction) can potentially have a major impact at the population level. As such, the close neighbourhood of seabird colonies are potentially highly sensitive areas, and this needs to be taken into account when carrying out risk assessments or during marine spatial planning exercises.
Indomethacin induced and prostaglandin relieved coarctation of the aorta in right aortic arch with left arterial duct: a case report
Authors: Golden-Plotnik Stevi , Rosenberg Herschel C. , Altamirano-Diaz Luis A. 
Published: March 2017

AbstractWe describe the case of an infant with DiGeorge syndrome born with a right aortic arch and left arterial duct. Despite the remote location of the right aortic arch from the left arterial duct, he developed coarctation of the aorta during treatment with indomethacin. This was relieved by prostaglandin treatment. This case highlights the fact that, even in the absence of an arterial duct, ductal tissue can still be present in the aorta, and cause coarctation when exposed to indomethacin. We also demonstrate the utility of prostaglandin for relief of this type of obstruction.
Assessment of nutrition and physical activity practices using self-report and observation in early care and education across multiple US states
Authors: Smith Teresa M , Blaser Casey , Geno Rasmussen Cristy , Shuell Julie , Plumlee Catherine , Yaroch Amy L 
Published: March 2017

AbstractObjectiveThe National Early Care and Education Learning Collaboratives (ECELC) Project aims to promote healthy physical activity and nutrition environments, policies and practices in early care and education (ECE) programmes across multiple states. The present pilot study sought to assess changes to the physical activity and nutrition practices in a sub-sample of ECE programmes participating in the ECELC using the Environment and Policy Assessment and Observation (EPAO). Additionally, it sought to compare results with the Nutrition and Physical Activity Self-Assessment for Child Care (NAP SACC).DesignQuasi-experimental pre–post pilot study where paired-sample t tests examined changes to physical activity and nutrition practices from pre-assessment to post-assessment (P<0·05). Pearson correlation coefficients examined change scores from EPAO compared with NAP SACC with statistical significance set at a two-sided α level of P<0·10 to account for sample size.SettingThe study occurred among ECE programmes.SubjectsPre-school classrooms in nineteen ECE programmes across four US states were observed.ResultsEPAO data demonstrated an increase in total score from pre-assessment to post-assessment (150 (sd 30) to 176 (sd 35)). NAP SACC change scores demonstrated little relationship with EPAO domain change scores, with exceptions in Nutrition Policy and Physical Activity Policy (r=−0·4 and −0·6, respectively).ConclusionsThe overall improvements reported through the EPAO suggest participation in the ECELC resulted in changes in critical nutrition- and physical activity-related practices. However, considerable differences in data reported using the NAP SACC compared with the EPAO suggest subjective data should be interpreted with caution and objective measurement should be used when feasible.
Influence of Noise-Generating Factors on Cross-Correlation Electron Backscatter Diffraction (EBSD) Measurement of Geometrically Necessary Dislocations (GNDs)
Authors: Hansen Landon T. , Jackson Brian E. , Fullwood David T. , Wright Stuart I. , De Graef Marc , Homer Eric R. , Wagoner Robert H. 
Published: March 2017

AbstractStudies of dislocation density evolution are fundamental to improved understanding in various areas of deformation mechanics. Recent advances in cross-correlation techniques, applied to electron backscatter diffraction (EBSD) data have particularly shed light on geometrically necessary dislocation (GND) behavior. However, the framework is relatively computationally expensive—patterns are typically saved from the EBSD scan and analyzed offline. A better understanding of the impact of EBSD pattern degradation, such as binning, compression, and various forms of noise, is vital to enable optimization of rapid and low-cost GND analysis. This paper tackles the problem by setting up a set of simulated patterns that mimic real patterns corresponding to a known GND field. The patterns are subsequently degraded in terms of resolution and noise, and the GND densities calculated from the degraded patterns using cross-correlation ESBD are compared with the known values. Some confirmation of validity of the computational degradation of patterns by considering real pattern degradation is also undertaken. The results demonstrate that the EBSD technique is not particularly sensitive to lower levels of binning and image compression, but the precision is sensitive to Poisson-type noise. Some insight is also gained concerning effects of mixed patterns at a grain boundary on measured GND content.
Distress and body image due to altered appearance in posttreatment and active treatment of breast cancer patients and in general population controls
Authors: Kang Danbee , Choi Eun-Kyung , Kim Im-Ryung , Nam Seok Jin , Lee Jeong Eon , Im Young-Hyuck , Ahn Jin Seok , Park Yeon Hee , Cho Juhee 
Published: March 2017

ABSTRACTObjective:Our objective was to evaluate long-term altered appearance, distress, and body image in posttreatment breast cancer patients and compare them with those of patients undergoing active treatment and with general population controls.Method:We conducted a cross-sectional survey between May and December of 2010. We studied 138 breast cancer patients undergoing active treatment and 128 posttreatment patients from 23 Korean hospitals and 315 age- and area-matched subjects drawn from the general population. Breast, hair, and skin changes, distress, and body image were assessed using visual analogue scales and the EORTC BR–23. Average levels of distress were compared across groups, and linear regression was utilized to identify the factors associated with body image.Results:Compared to active-treatment patients, posttreatment patients reported similar breast changes (6.6 vs. 6.2), hair loss (7.7 vs. 6.7), and skin changes (5.8 vs. 5.4), and both groups had significantly more severe changes than those of the general population controls (p < 0.01). For a similar level of altered appearance, however, breast cancer patients experienced significantly higher levels of distress than the general population. In multivariate analysis, patients with high altered appearance distress reported significantly poorer body image (–20.7, CI95% = –28.3 to –13.1) than patients with low distress.Significance of results:Posttreatment breast cancer patients experienced similar levels of altered appearance, distress, and body-image disturbance relative to patients undergoing active treatment but significantly higher distress and poorer body image than members of the general population. Healthcare professionals should acknowledge the possible long-term effects of altered appearance among breast cancer survivors and help them to manage the associated distress and psychological consequences.
Does Religious Attendance Increase Immigrant Political Participation?: A Case Study in Australia
Authors: Jiang Liang 
Published: March 2017

AbstractThe relationship between religion and immigrant political participation has not been rigorously investigated in the literature set in Australia. In this study, I test whether religious attendance influences electoral and non-electoral participation among immigrants. Drawing on data from the 2013 Australian Election Study, I demonstrate that the impact of religious attendance on political participation may be overstated. I find that religious attendance is not significantly related to electoral and non-electoral participation among immigrants in Australia. This result may relate to three factors: the ability of religious attendance to affect immigrants’ key political resources; competition between religious and secular organizations; and the political salience of particular religious denominations within the Australian context. This study does not provide the much sought-after empirical confirmation to associational theories of political participation, but instead sounds a note of caution about the universal applicability of such theories.
Low-crystalline iron oxide hydroxide nanoparticle anode for high-performance supercapacitors
Authors: Owusu Kwadwo Asare , Qu Longbing , Li Jiantao , Wang Zhaoyang , Zhao Kangning , Yang Chao , Hercule Kalele Mulonda , Lin Chao , Shi Changwei , Wei Qiulong , Zhou Liang , Mai Liqiang 
Published: March 2017

AbstractCarbon materials are generally preferred as anodes in supercapacitors; however, their low capacitance limits the attained energy density of supercapacitor devices with aqueous electrolytes. Here, we report a low-crystalline iron oxide hydroxide nanoparticle anode with comprehensive electrochemical performance at a wide potential window. The iron oxide hydroxide nanoparticles present capacitances of 1,066 and 716 F g−1 at mass loadings of 1.6 and 9.1 mg cm−2, respectively, a rate capability with 74.6% of capacitance retention at 30 A g−1, and cycling stability retaining 91% of capacitance after 10,000 cycles. The performance is attributed to a dominant capacitive charge-storage mechanism. An aqueous hybrid supercapacitor based on the iron oxide hydroxide anode shows stability during float voltage test for 450 h and an energy density of 104 Wh kg−1 at a power density of 1.27 kW kg−1. A packaged device delivers gravimetric and volumetric energy densities of 33.14 Wh kg−1 and 17.24 Wh l−1, respectively.
Malignant extracellular vesicles carrying MMP1 mRNA facilitate peritoneal dissemination in ovarian cancer
Authors: Yokoi Akira , Yoshioka Yusuke , Yamamoto Yusuke , Ishikawa Mitsuya , Ikeda Shun-ichi , Kato Tomoyasu , Kiyono Tohru , Takeshita Fumitaka , Kajiyama Hiroaki , Kikkawa Fumitaka , Ochiya Takahiro 
Published: March 2017

AbstractAdvanced ovarian cancers are highly metastatic due to frequent peritoneal dissemination, resulting in dismal prognosis. Here we report the functions of cancer-derived extracellular vesicles (EVs), which are emerging as important mediators of tumour metastasis. The EVs from highly metastatic cells strongly induce metastatic behaviour in moderately metastatic tumours. Notably, the cancer EVs efficiently induce apoptotic cell death in human mesothelial cells in vitro and in vivo, thus resulting in the destruction of the peritoneal mesothelium barrier. Whole transcriptome analysis shows that MMP1 is significantly elevated in mesothelial cells treated with highly metastatic cancer EVs and intact MMP1 mRNAs are selectively packaged in the EVs. Importantly, MMP1 expression in ovarian cancer is tightly correlated with a poor prognosis. Moreover, MMP1 mRNA-carrying EVs exist in the ascites of cancer patients and these EVs also induce apoptosis in mesothelial cells. Our findings elucidate a previously unknown mechanism of peritoneal dissemination via EVs.
Capture of heavy hydrogen isotopes in a metal-organic framework with active Cu(I) sites
Authors: Weinrauch I. , Savchenko I. , Denysenko D. , Souliou S. M. , Kim H-H , Le Tacon M. , Daemen L. L. , Cheng Y. , Mavrandonakis A. , Ramirez-Cuesta A. J. , Volkmer D. , Schütz G. , Hirscher M. , Heine T. 
Published: March 2017

AbstractThe production of pure deuterium and the removal of tritium from nuclear waste are the key challenges in separation of light isotopes. Presently, the technological methods are extremely energy- and cost-intensive. Here we report the capture of heavy hydrogen isotopes from hydrogen gas by selective adsorption at Cu(I) sites in a metal-organic framework. At the strongly binding Cu(I) sites (32 kJ mol−1) nuclear quantum effects result in higher adsorption enthalpies of heavier isotopes. The capture mechanism takes place most efficiently at temperatures above 80 K, when an isotope exchange allows the preferential adsorption of heavy isotopologues from the gas phase. Large difference in adsorption enthalpy of 2.5 kJ mol−1 between D2 and H2 results in D2-over-H2 selectivity of 11 at 100 K, to the best of our knowledge the largest value known to date. Combination of thermal desorption spectroscopy, Raman measurements, inelastic neutron scattering and first principles calculations for H2/D2 mixtures allows the prediction of selectivities for tritium-containing isotopologues.
The origin of carbon isotope vital effects in coccolith calcite
Authors: McClelland H. L. O. , Bruggeman J. , Hermoso M. , Rickaby R. E. M. 
Published: March 2017

AbstractCalcite microfossils are widely used to study climate and oceanography in Earth’s geological past. Coccoliths, readily preserved calcite plates produced by a group of single-celled surface-ocean dwelling algae called coccolithophores, have formed a significant fraction of marine sediments since the Late Triassic. However, unlike the shells of foraminifera, their zooplankton counterparts, coccoliths remain underused in palaeo-reconstructions. Precipitated in an intracellular chemical and isotopic microenvironment, coccolith calcite exhibits large and enigmatic departures from the isotopic composition of abiogenic calcite, known as vital effects. Here we show that the calcification to carbon fixation ratio determines whether coccolith calcite is isotopically heavier or lighter than abiogenic calcite, and that the size of the deviation is determined by the degree of carbon utilization. We discuss the theoretical potential for, and current limitations of, coccolith-based CO2 paleobarometry, that may eventually facilitate use of the ubiquitous and geologically extensive sedimentary archive.