bluuebunny/crossref_metadata_2025_split huggingface dataset:
High-Precision Biogenic Fraction Analyses of Liquid Fuels by 14C AMS at HEKAL
Authors: Varga Tamás , Major István , Janovics Róbert , Kurucz Júlia , Veres Mihály , Jull A J Timothy , Péter Mónika , Molnár Mihály 
Published: November 2018

ABSTRACTThe biocomponent ratio in liquid fuels as well as the usage of renewable resources for fuel consumption in the transport sector needs to be increased as a result of EU directive 2003/30/EC. Based on radiocarbon (14C) measurements, it should be relatively simple and fast to measure the weight percentage of the fossil and biological sources by accelerator mass spectrometry (AMS) as recommended in the ASTM D 6866-12 and EN 16640 standards. In this study, a relatively easy and fast sample preparation and measurement method based on AMS measurements was developed at the Hertelendi Laboratory of Environmental Studies (HEKAL) using reference samples from the Hungarian MOL Nyrt. oil company. Considering the recent EU regulation for mixing rates of liquid fuels in the transport sector (0.7–2% biofuel content) and the projected higher rates (2–10% biofuel content), the method is applicable to determine fatty acid methyl ester (FAME) and/or hydrotreated vegetable oil (HVO) derived proportions of fuel blends with a 1σ uncertainty better than±0.3% m/m.
Sealed Tube Combustion Method with MnO2 for AMS 14C Measurement
Authors: Janovics Róbert , Futó István , Molnár Mihály 
Published: November 2018

ABSTRACTAn effective sealed tube combustion method was designed with an MnO2 oxidant for accelerator mass spectrometry radiocarbon (AMS 14C) measurements. Different types of materials (oxalic acid, cellulose, sucrose, wood, collagen, graphite, and humic acid) were used to test the method. A normal borosilicate glass tube was used instead of quartz and the combustion was done at 550ºC. The yield of the combustion is above 98% even in the case of the less combustible material such as graphite. The MnO2 reagent does not introduce detectable carbon contamination. The typical background is 0.29±0.20 pMC in the case of 200 µg carbon, measured as solid graphite target. With direct measurement of the CO2 by gas ion source AMS, the method is applicable up to 50 µg of carbon with an acceptable (~1 pMC) 14C background. A new type of tube cracker was developed for a quick chipless method of tube cracking and sample changing. In this way, the gas handling process takes only 5–6 min/sample.
Isotopic Signature (δ13C, ∆14C) of DIC in Sediment Pore Waters: An Example from the Rhone River Delta
Authors: Dumoulin J-P , Pozzato L , Rassman J , Toussaint F , Fontugne M , Tisnérat-Laborde N , Beck L , Caffy I , Delqué-Količ E , Moreau C , Rabouille C 
Published: November 2018

ABSTRACTA better understanding of the dynamics of different particulate organic matter (OM) pools in the coastal carbon budget is a key issue for quantifying the role of the coastal ocean in the global carbon cycle. To elucidate the benthic component of this carbon cycle at the land-sea interface, we investigated the carbon isotope signatures (δ13C and ∆14C) in the sediment pore waters dissolved inorganic carbon (DIC) in addition to the sediment OM to constrain the origin of the OM mineralized in sediments. The study site is located at the outlet of the Rhône River (Mediterranean Sea), which was chosen because this river is one of the most nuclearized rivers in Europe and nuclear 14C can serve as a tracer to follow the fate of the OM discharged by the river to the coastal sea. The ∆14C results found in the pore waters DIC show a general offset between buried and mineralized OM following a preferential mineralization model of young and fresh particles. For example, we found that the sediment OM has values with a mean ∆14C=–33‰ at sampling stations near the river mouth whereas enriched ∆14C values around +523‰ and +667‰ respectively were found for the pore waters DIC. This indicates complete mineralization of a riverine fraction of OM enriched in 14C in the river conduit during in-stream photosynthesis. In shelf sediments, the ∆14C of pore waters DIC is slightly enriched (+57‰) with sediment OM reaching –570‰. A mixing model shows that particles mineralized near the river mouth are certainly of riverine phytoplanktonic origin whereas OM mineralized on the shelf is of marine origin. This work highlights the fact that pore waters provide additional information compared to sediments alone and it seems essential to work on both pools to study the carbon budget in river prodelta.
Leucine promotes porcine myofibre type transformation from fast-twitch to slow-twitch through the protein kinase B (Akt)/forkhead box 1 signalling pathway and microRNA-27a
Authors: Zhang Shurun , Chen Xiaoling , Huang Zhiqing , Chen Daiwen , Yu Bing , Chen Hong , He Jun , Luo Junqiu , Zheng Ping , Yu Jie , Luo Yuheng 
Published: November 2018

AbstractMuscle fibre types can transform from slow-twitch (slow myosin heavy chain (MyHC)) to fast-twitch (fast MyHC) or vice versa. Leucine plays a vital effect in the development of skeletal muscle. However, the role of leucine in porcine myofibre type transformation and its mechanism are still unclear. In this study, effects of leucine and microRNA-27a (miR-27a) on the transformation of porcine myofibre type were investigatedin vitro. We found that leucine increased slow MyHC protein level and decreased fast MyHC protein level, increased the levels of phospho-protein kinase B (Akt)/Akt and phospho-forkhead box 1 (FoxO1)/FoxO1 and decreased the FoxO1 protein level. However, blocking the Akt/FoxO1 signalling pathway by wortmannin attenuated the role of leucine in porcine myofibre type transformation. Over-expression of miR-27a decreased slow MyHC protein level and increased fast MyHC protein level, whereas inhibition of miR-27a had an opposite effect. We also found that expression of miR-27a was down-regulated following leucine treatment. Moreover, over-expression of miR-27a repressed transformation from fast MyHC to slow MyHC caused by leucine, suggesting that miR-27a is interdicted by leucine and then contributes to porcine muscle fibre type transformation. Our finding provided the first evidence that leucine promotes porcine myofibre type transformation from fast MyHC to slow MyHC via the Akt/FoxO1 signalling pathway and miR-27a.
Dynamics of forage ingestion, oral processing and digesta outflow from the rumen: a development in a mechanistic model of a grazing ruminant, MINDY
Authors: Gregorini P. , Provenza F. D. , Villalba J. J. , Beukes P. C. , Forbes M. J. 
Published: November 2018

AbstractDetailed representation of ingesta inflow to and digesta outflow from the rumen is critical for improving the modelling of rumen function and herbage intake of grazing ruminants. The objective of the current work was to extend a mechanistic model of a grazing ruminant, MINDY, to simulate the dynamic links between ingestive and digestive processes as affected by forage and sward features (e.g. sward structure, herbage chemical composition) as well as the internal state of the animal. The work integrates existing aspects of forage ingestion, oral physiology and rumen digestion that influence ingesta characteristics and digesta outflows from the rumen, respectively. The paper describes the structure and function of the new development, assessing the new model in terms of dynamic changes of oral processing of ingesta and rumen dilution rate under different grazing contexts. MINDY reproduces characteristics of ingesta inflow to and digesta outflow from the rumen of grazing ruminants, achieving temporal patterns of occurrence within and between meals, similar to those for grazing animals reported in the literature. The model realistically simulates changes in particle size distribution of the ingestive bolus, bolus weight and rumen dilution rate in response to contrasting grazing management regimes. The new concepts encoded in MINDY capture the underlying biological mechanisms that drive the dynamic link between ingestion and digestion patterns. This development advances in the understanding and modelling of grazing and digestive behaviour patterns of free-ranging ruminants.
A little-known endemic caught in the South-east Asian extinction crisis: the Annamite striped rabbit Nesolagus timminsi
Authors: Tilker Andrew , Nguyen An , Abrams Jesse F. , Bhagwat Tejas , Le Minh , Van Nguyen Thanh , Nguyen Anh Tuan , Niedballa Jürgen , Sollmann Rahel , Wilting Andreas 
Published: November 2018

AbstractThe Annamite mountains of Viet Nam and the Lao People's Democratic Republic (Lao) are an area of exceptional mammalian endemism but intensive poaching has defaunated much of the region, creating an extinction crisis for the endemic species. To make efficient use of limited conservation resources, it is imperative that conservation stakeholders obtain basic information about poorly known and threatened endemics. We present the first comprehensive information on the ecology, distribution and status of the little-known endemic Annamite striped rabbit Nesolagus timminsi. We used a systematic camera-trapping design to study the species in five areas in Viet Nam and Lao. In 29,180 camera-trap-nights we recorded 152 independent events at 36 of 266 stations. We obtained an additional 143 independent detections across 12 stations from a supplementary non-systematic survey. We analysed activity patterns and social behaviour. We also used single-species occupancy models to assess factors that influence occupancy at the landscape scale. We used N-mixture models to obtain local abundance estimates in one target area. The Annamite striped rabbit was found to be nocturnal and primarily solitary. Species occupancy was best explained by a proxy for past hunting pressure, with no significant relationships to current anthropogenic or environmental factors. Local abundance was 0.57 individuals per camera-trap station for one of our sites, and estimated to be zero at the other site where hunting appears to have been more intense. Our results provide information on priority areas for targeted anti-poaching efforts and give the first conservation baseline for the species.
Do household living arrangements explain gender and ethnicity differences in receipt of support services? Findings from LiLACS NZ Māori and non-Māori advanced age cohorts
Authors: Lapsley Hilary , Kerse Ngaire , Moyes Simon A. , Keeling Sally , Muru-Lanning Marama Leigh , Wiles Janine , Jatrana Santosh 
Published: November 2018

AbstractServices providing practical support are a key component in the spectrum of social care assisting older people to age in place. Te Puāwaitanga o Ngā Tapuwae Kia Ora Tonu/Life and Living in Advanced Age: A Cohort Study in New Zealand (LiLACS NZ), a longitudinal study of Māori and non-Māori in advanced age, aims to determine predictors of successful ageing and to understand trajectories of health and wellbeing. This paper investigates whether household living arrangements (living alone or with others) might explain previously reported gender and ethnic differences in support service utilisation. We had shown that women and non-Māori received more services than men and Māori despite better health. The results of analyses in this paper show that, as expected, poorer physical function led to increased service use. After controlling for functional status, household living arrangements (living alone) were the next strongest driver of service use. In a fully adjusted model, previously observed differences around gender and ethnicity were no longer significant predictors of support service use. However, gender and ethnicity do shape living arrangements in advanced age. Women in advanced age are more likely to live alone, consequently needing more outside support, whereas men are more likely to have a spouse/partner able to provide care. Māori are more likely to live in multigenerational households, the care available at home meaning they are less likely to qualify for formal support. This study points to a need for understanding how gender and ethnicity interact with living arrangements and suggests that inequities may not be absent when the presence of others in a household renders an older person ineligible for formal care.
Reports of perceived racial discrimination among African American children predict negative affect and smoking behavior in adulthood: A sensitive period hypothesis
Authors: Gibbons Frederick X. , Fleischli Mary E. , Gerrard Meg , Simons Ronald L. 
Published: November 2018

AbstractWe examined the prospective relations between a cultural risk factor, perceived racial discrimination (PRD), and subsequent negative affect and health behavior (smoking) in a panel of 889 African American children (part of the Family and Community Health Study). Cultural moderators (protective factors) of these relations were also examined. PRD was assessed six times from ages 10.5 (Wave 1) to 24.5 (Wave 6), and negative affect (anger and depressive symptoms) was assessed at Wave 2 (age 12.5) and Wave 6 (age 24.5). Results indicated that Wave 1 PRD predicted Wave 6 smoking, controlling for multiple factors related to smoking and/or PRD, including smoking at age 15.5. Structural equation models indicated that these relations between Wave 1 PRD and smoking were mediated by both early and later negative affect. The models also indicated that Wave 1 PRD had a direct impact on Wave 6 anger (assessed 14 years later), controlling for the effects of PRD on early affect. Cultural socialization was associated with lower rates of adolescent smoking, and it buffered the relation between PRD and Wave 6 anger. The impact of early PRD experiences along with suggestions for culturally informed interventions and preventive interventions that might buffer against early PRD effects are discussed.
Nutrition knowledge related to breakfast skipping among Japanese adults aged 18–64 years: a cross-sectional study
Authors: Matsumoto Mai , Ishige Naomi , Sakamoto Azusa , Saito Aki , Ikemoto Shinji 
Published: November 2018

AbstractObjectiveBreakfast skipping is regarded as a public health issue among adults worldwide. Nutrition knowledge has been reported to be one of predictors of dietary behaviour. Therefore, the aim of the present study was to examine the association between nutrition knowledge and breakfast skipping.DesignData regarding nutrition knowledge were obtained by using a validated, self-administered general nutrition knowledge questionnaire for Japanese adults (JGNKQ). Participants were classified into three nutrition knowledge level groups according to total JGNKQ score: Low, Middle and High. In addition, participants reported the frequency of meal consumption per week and rated the difficulty in finding time to eat breakfast, lunch and dinner in the lifestyle questionnaire. The differences in frequency of breakfast, lunch and dinner consumption among Low, Middle and High nutrition knowledge groups were determined by using ANCOVA adjusted for potential confounding factors.SettingKanto region, Japan.ParticipantsJapanese adults aged 18–64 years (n1165, 57·3% women).ResultsMean age of the participants was 43·8 (sd8·9) years. There were no significant differences found in the proportion of respondents reporting difficulty in finding time to eat each meal among the three groups. However, the frequency of breakfast consumption was significantly different among Low, Middle and High groups, while lunch and dinner frequency did not differ among the three groups.ConclusionsThe present study suggests that nutrition knowledge level is related to breakfast skipping among Japanese adults.
Families of the missing in Sri Lanka: Psychosocial considerations in transitional justice mechanisms
Authors: Salih Maleeka , Samarasinghe Gameela 
Published: November 2018

AbstractIn the last thirty years, tens of thousands of Sri Lankans have experienced enforced disappearances of family members. In 2016, many members of such families came before the Consultation Task Force on Reconciliation Mechanisms, which was mandated to gather views on how people thought the transitional justice mechanisms should be designed, how they should be established and how they should function. This process allowed the families to share their experiences and to outline what they saw as important in shaping the transitional justice mechanisms. This article surveys the complex nature of their distress and psychosocial needs, as expressed by them during the consultations. It proposes that transitional justice mechanisms should be designed to protect their psychosocial well-being, address their complex psychosocial needs, and provide them with support and protection before, during and after their engagement in the mechanisms.
Strengthening resilience: The ICRC's community-based approach to ensuring the protection of education
Authors: Loane Geoff , Santos Ricardo Fal-Dutra 
Published: November 2018

AbstractEducation has received increased attention within the humanitarian sector. In conflict-affected contexts, access to education may be hampered by attacks against and the military use of educational facilities as well as attacks and threats of attacks against students, teachers and other education-related persons. Affected populations may also find themselves unable to access education, for example due to displacement.This article looks into the different sets of humanitarian responses aimed at (1) ensuring the protection of educational facilities and related persons, mostly through advocacy efforts centred on weapons bearers, and (2) (re-)establishing education services where they are not present or are no longer functioning, mostly through programmes directed at affected populations. It then argues that, in contrast with dominant practices, the protection of education can also be ensured through programmatic responses with meaningful participation of affected communities, and examines the example of the Safer Schools programme in Ukraine.
Assessing Fitness Costs from a Herbicide-Resistance Management Perspective: A Review and Insight
Authors: Keshtkar Eshagh , Abdolshahi Roohollah , Sasanfar Hamidreza , Zand Eskandar , Beffa Roland , Dayan Franck E. , Kudsk Per 
Published: November 2018

AbstractIn recent years, herbicide resistance has attracted much attention as an increasingly urgent problem worldwide. Unfortunately, most of that effort was focused on confirmation of resistance and characterization of the mechanisms of resistance. For management purposes, knowledge about biology and ecology of the resistant weed phenotypes is critical. This includes fitness of the resistant biotypes compared with the corresponding wild biotypes. Accordingly, fitness has been the subject of many studies; however, lack of consensus on the concept of fitness resulted in poor experimental designs and misinterpretation of the ensuing data. In recent years, methodological protocols for conducting proper fitness studies have been proposed; however, we think these methods should be reconsidered from a herbicide-resistance management viewpoint. In addition, a discussion of the inherent challenges associated with fitness cost studies is pertinent. We believe that the methodological requirements for fitness studies of herbicide-resistant weed biotypes might differ from those applied in other scientific disciplines such as evolutionary ecology and genetics. Moreover, another important question is to what extent controlling genetic background is necessary when the aim of a fitness study is developing management practices for resistant biotypes. Among the methods available to control genetic background, we suggest two approaches (single population and pedigreed lines) as the most appropriate methods to detect differences between resistant (R) and susceptible (S) populations and to derive herbicide-resistant weed management programs. Based on these two methods, we suggest two new approaches that we named the “recurrent single population” and “recurrent pedigreed lines” methods. Importantly, whenever the aim of a fitness study is to develop optimal resistance management, we suggest selecting R and S plants within a single population and evaluating all fitness components from seed to seed instead of measuring changes in the frequency of R and S alleles through multigenerational fitness studies.
Seed Fecundity, Persistence, and Germination Biology of Prairie Groundcherry (Physalis hederifolia) in Australia
Authors: Wu Hanwen , Stanton Rex , Lemerle Deirdre 
Published: November 2018

AbstractPrairie groundcherry [Physalis hederifolia(A. Gray) var.fendleri(A. Gray) Cronquist] is an invasive perennial weed with the potential to become a significant summer weed across 409 million hectares in Australia. Current management practices do not provide effective control of established populations. A better understanding of the seed biology is needed to effectively manage this weed. A series of field and laboratory studies were conducted to determine plant fecundity, soil seedbank longevity, and the factors that affect seed germination.Physalis hederifoliahas the capacity to produce 66 to 86 berries plant−1, 51 to 74 seeds berry−1, and approximately 4,500 seeds plant−1, with the seeds potentially able to persist in the soil seedbank for 20 yr if buried in an intact dry berry pod. The bare-seed component of the soil seedbank can be virtually exhausted within 3 yr if cultivation is minimized to avoid burial of seed. Optimal temperature for germination is diurnal fluctuations of 15 C within the temperature range of 10 and 30 C. Increasing osmotic stress levels reduced the germination under all temperature regimes, with less than 6% germination occurring at −0.96 MPa.Physalis hederifoliaseed germination was not significantly affected by substrate pH 4 to 10 or salt levels less than 160 mM, while the germination was significantly reduced at NaCl concentrations above 160 mM. These results suggest thatP. hederifoliacan adapt to a range of substrate conditions. Stopping seed set, avoiding grazing plants with viable seeds, and minimizing seed burial in the soil are some effective strategies to control this weed.
Implicit Association Test as an Analogical Learning	Task
Authors: Hussey Ian , De Houwer Jan 
Published: November 2018

Abstract. The Implicit Association Test (IAT) is a popular tool for measuring attitudes. We suggest that performing an IAT could, however, also change attitudes via analogical learning. For instance, when performing an IAT in which participants categorize (previously unknown) Chinese characters, flowers, positive words, and negative words, participants could infer that Chinese characters relate to flowers as negative words relate to positive words. This analogy would imply that Chinese characters are opposite to flowers in terms of valence and thus that they are negative. Results from three studies (N = 602) confirmed that evaluative learning can occur when completing an IAT, and suggest that this effect can be described as analogical. We discuss the implications of our findings for research on analogy and research on the IAT as a measure of attitudes.