bluuebunny/crossref_metadata_2025_split huggingface dataset:
Correlación entre niveles de ansiedad y el Trastorno por Déficit de Atención e Hiperactividad en niños de 6 a 8 años
Authors: Alvarado Abad Johana Teresa , Guijarro César 
Published: October 2017

En este trabajo investigativo se analiza la correlación existente entre los diferentes niveles de ansiedad y el Trastorno por Déﬁcit de Atención e Hiperactividad (TDAH). La población estudiada corresponde a 85 niños y niñas que tienen en común el diagnóstico de TDAH y acuden a tratamiento psicológico en el Centro de Desarrollo Humano IDEAS, de la ciudad de Cuenca– Ecuador, de edades comprendidas entre los 6 y 8 años. Para la investigación se procedió al análisis y selección de casos diagnosticados con Trastorno por Déﬁcit de Atención e Hiperactividad (TDAH), mediante la interpretación de los criterios diagnósticos del DSM-V y la revisión del historial personal de los participantes, en cuanto a los niveles de ansiedad se empleó el Cuestionario de Ansiedad Infantil (CAS). Se considera dentro del estudio el análisis de factores como la edad y género de los casos con TDAH. La interpretación de los resultados se desarrolló en base a estadísticos descriptivos y exploratorios, obteniendo una relación signiﬁcativa entre el Trastorno por Déﬁcit de Atención e Hiperactividad y los niveles de ansiedad media y alta, de igual manera se evidencia que hay una mayor proporción de niños con niveles de ansiedad y TDAH a diferencia de las niñas.
Development and characterization of genomic SSR markers for Anneslea fragrans (Pentaphylacaceae)1
Authors: Sun Lijing , Meng Kaikai , Liao Boyong , Li Chunmei , Zhang Yue , Liao Wenbo , Chen Sufang 
Published: October 2017

Premise of the study:The genus Anneslea (Pentaphylacaceae) contains four species and six varieties, most of which are locally endemic. Here, simple sequence repeat (SSR) markers were developed for the conservation of these species.Methods and Results:The genome of A. fragrans was sequenced and de novo assembled into 445,162 contigs, of which 30,409 SSR loci were detected. Primers for 100 SSR loci were validated with PCR amplification in three populations of A. fragrans. Seventy‐nine loci successfully amplified, and 30 were polymorphic. The mean number of alleles, observed heterozygosity, and expected heterozygosity were 7.01 ± 1.60, 0.817 ± 0.241, and 0.796 ± 0.145, respectively. Most primers could be amplified in Ternstroemia gymnanthera, T. kwangtungensis, and Cleyera pachyphylla.Conclusions:Our study demonstrated that shotgun genome sequencing is an efficient way to develop genomic SSR markers for nonmodel species. These genomic SSR loci will be valuable in population genetic studies in Anneslea and its relatives.
On the Effects of Pickup Ion-driven Waves on the Diffusion Tensor of Low-energy Electrons in the Heliosphere
Authors: Engelbrecht N. Eugene 
Published: October 2017

Abstract
The effects of Alfvén cyclotron waves generated due to the formation in the outer heliosphere of pickup ions on the transport coefficients of low-energy electrons is investigated here. To this end, parallel mean free path (MFP) expressions are derived from quasilinear theory, employing the damping model of dynamical turbulence. These are then used as inputs for existing expressions for the perpendicular MFP and turbulence-reduced drift coefficient. Using outputs generated by a two-component turbulence transport model, the resulting diffusion coefficients are compared with those derived using a more typically assumed turbulence spectral form, which neglects the effects of pickup ion-generated waves. It is found that the inclusion of pickup ion effects greatly leads to considerable reductions in the parallel and perpendicular MFPs of 1–10 MeV electrons beyond ∼10 au, which are argued to have significant consequences for studies of the transport of these particles.
FOETAL HAEMOGLOBIN AND DISEASE SEVERITY IN NIGERIAN CHILDREN WITH SICKLE CELL ANAEMIA.
Authors: Adeodu Oluwagbemiga , Akinlosotu Morenike , Adegoke Samuel , Oseni Saheed 
Published: October 2017

Background: Foetal haemoglobin (HbF) is a major modifying factor influencing sickle cell disease (SCD) severity. Despite this, HbF estimation is not routinely done in Nigeria. Relationship between HbF and SCD severity among affected children is also poorly studied.Methods: In this descriptive cross-sectional study, we determined the relationship between steady state HbF levels and disease severity of Nigerian children aged 1 – 15 years with homozygous SCD. For each child, the socio-demographic characteristics and SCD clinical severity were determined. The latter was assessed based on the frequency of significant painful episodes, blood transfusion, and hospitalization in the preceding 12 months; lifetime cummulative incidence of SCD-related complications; degree of splenic and hepatic enlargement; current haematocrit and leucocyte count, as previously described. Foetal haemoglobin levels were quantified with high performance liquid chromatography.Results: The mean HbF level of the 105 children with SCA was 9.9 ± 6.0%. Male had significantly lower mean HbF levels than females, 8.0 ± 5.6% vs. 12.2 ± 5.8% (p < 0.001). None of the children had severe disease. However, those with moderate disease had significantly lower mean foetal haemoglobin levels than those with mild disease (7.7 ± 5.6% vs. 10.8 ± 6.0% respectively). The mean HbF level was also significantly lower in children who had history of acute chest syndrome and stroke compared to those without these complications, p = 0.002 and 0.010 respectively.Conclusion: Children with SCA who had moderate disease and those with history of life threatening complications such as stroke and acute chest syndrome had significantly low HbF. Therefore it is recommended that facilities for early quantification of foetal haemoglobin and HbF inducement be made available in order to reduce the morbidity and mortality among these children.
Comparison of an Enzyme Immunoassay versus Mass Spectrometry-based Assay for the Quantitative Determination of the Procollagen Type I N-terminal Propeptide in Rat Serum
Authors: Dzieciatkowska Monika , Copeland Marci , You Jinsam , Wery Jean-Pierre , Wang Mu 
Published: October 2017

Traditionally, antibody-based assays, such as enzyme immunoassay (EIA), enzyme-linked immunosorbent assay (ELISA) and radioimmunoassay (RIA), are the primary tool for the targeted quantification of a specific protein. An antibody-based assay can be run at high-throughput and has extraordinary sensitivity and specificity. In the cases where antibody-based assays exist, the process of validating biomarker candidates can be relatively straightforward. However, the antibody-based approach is limited by the lack of availability of antibodies with high specificity. The development of a high quality antibody-based assays can be costly, time-consuming and a resource-intensive effort. Another disadvantage of antibody-based assays is that they often do not discriminate closely related isoforms. While the antibody development is central to the success of antibody-based platform, mass spectrometry (MS) provides alternative and complementary approach to existing antibody-based assays. The MS-based assays are becoming very popular for quantitative candidates proteins detection in a complex biological mixture. In the present paper, an in-house developed mass spectrometry (MS)-based assay was compared to a commercially available EIA in reproducibility, measurement accuracy, and dynamic range using rat procollagen type-I N-terminal propeptide (P1NP) as a model.
Digital Personalization in Early Childhood
Authors: Kucirkova Natalia 
Published: October 2017

Digital personalization is an emerging interdisciplinary research field, with application to a variety of areas including design, education and the publication industry. This book focuses on children’s education and literacy resources, which have undergone important changes with the ‘personalization revolution’ in the early 21st century.
The author develops original insights from educational research and her own studies concerned with digital and non-digital personalization, to discuss in a clear and critical way the thinking, research issues and practical implications of this new field. She scrutinises the character of technology-based personalized education to substantiate the claim that the current models of personalized education tend to be technology- and business-driven, with little pedagogical understanding of the social value of personalization. Research involving touchscreens, personalized books and 2-8-year olds is interrogated for its impact on children’s development of language, creativity and identity, as well as family dynamics and classroom dialogue. The literature available on digital and non-digital personalization is discussed in relation to five key themes of personalized education, the so-called 5As: autonomy, authorship, aesthetics, attachment and authenticity. It is argued that the 5As need to be anchored in humanist principles for a sustainable pedagogy and practice. Based on the insights from research with typically and atypically developing children, Kucirkova proposes personalized pluralisation as a pedagogical framework of personalized education for the future. The book aims to help scholars and professionals understand the connections between personalization and literacy, personalization and education, and personalization and wider socio-moral issues.
An updated emission inventory of vehicular VOCs and IVOCs in China
Authors: Liu Huan , Man Hanyang , Cui Hongyang , Wang Yanjun , Deng Fanyuan , Wang Yue , Yang Xiaofan , Xiao Qian , Zhang Qiang , Ding Yan , He Kebin 
Published: October 2017

Abstract. Currently, the emission inventory of vehicular volatile organic compounds (VOCs) is one of those with the largest errors and uncertainties due to suboptimal estimation methods and the lack of first-hand basic data. In this study, an updated speciated emission inventory of VOCs and an estimation of intermediate-volatility organic compounds (IVOCs) from vehicles in China at the provincial level for the year of 2015 are developed based on a set of state-of-the-art methods and an abundance of local measurement data. Activity data for light-duty vehicles are derived from trajectories of more than 70 000 cars for 1 year. The annual mileage of trucks are calculated from reported data by more than 2 million trucks in China. The emission profiles are updated using measurement data. Vehicular tailpipe emissions (VTEs) and four types of vehicular evaporation emissions (VEEs), including refueling, hot soak, diurnal and running loss, are taken into account. Results show that the total vehicular VOC emissions in China are 4.21 Tg (with a 95 % confidence interval range from 2.90 to 6.54 Tg) and the IVOC emissions are 200.37 Gg in 2015. VTEs are still the predominant contributor, while VEEs are responsible for 39.20 % of VOC emissions. The control of VEEs is yet to be optimized in China. Among VTEs, passenger vehicles emissions have the largest share (49.86 %), followed by trucks (28.15 %) and motorcycles (21.99 %). Among VEEs, running loss is the largest contributor (81.05 %). For both VTEs and VEEs, Guangdong, Shandong and Jiangsu province are three of the highest, with a respective contribution of 10.66, 8.85 and 6.54 % to the total amounts of VOCs from vehicles. 97 VOC species are analyzed in this VOC emission inventory. i-Pentane, toluene and formaldehyde are found to be the most abundant species in China's vehicular VOC emissions. The estimated IVOCs are another inconvenient truth, concluding that precursor emissions for secondary organic aerosol (SOA) from vehicles are much larger than previously estimated.
Do contemporary (1980–2015) emissions determine the elemental carbon deposition trend at Holtedahlfonna glacier, Svalbard?
Authors: Ruppel Meri M. , Soares Joana , Gallet Jean-Charles , Isaksson Elisabeth , Martma Tõnu , Svensson Jonas , Kohler Jack , Pedersen Christina A. , Manninen Sirkku , Korhola Atte , Ström Johan 
Published: October 2017

Abstract. The climate impact of black carbon (BC) is notably amplified in the Arctic by its deposition, which causes albedo decrease and subsequent earlier snow and ice spring melt. To comprehensively assess the climate impact of BC in the Arctic, information on both atmospheric BC concentrations and deposition is essential. Currently, Arctic BC deposition data are very scarce, while atmospheric BC concentrations have been shown to generally decrease since the 1990s. However, a 300-year Svalbard ice core showed a distinct increase in EC (elemental carbon, proxy for BC) deposition from 1970 to 2004 contradicting atmospheric measurements and modelling studies. Here, our objective was to decipher whether this increase has continued in the 21st century and to investigate the drivers of the observed EC deposition trends. For this, a shallow firn core was collected from the same Svalbard glacier, and a regional-to-meso-scale chemical transport model (SILAM) was run from 1980 to 2015. The ice and firn core data indicate peaking EC deposition values at the end of the 1990s and lower values thereafter. The modelled BC deposition results generally support the observed glacier EC variations. However, the ice and firn core results clearly deviate from both measured and modelled atmospheric BC concentration trends, and the modelled BC deposition trend shows variations seemingly independent from BC emission or atmospheric BC concentration trends. Furthermore, according to the model ca. 99 % BC mass is wet-deposited at this Svalbard glacier, indicating that meteorological processes such as precipitation and scavenging efficiency have most likely a stronger influence on the BC deposition trend than BC emission or atmospheric concentration trends. BC emission source sectors contribute differently to the modelled atmospheric BC concentrations and BC deposition, which further supports our conclusion that different processes affect atmospheric BC concentration and deposition trends. Consequently, Arctic BC deposition trends should not directly be inferred based on atmospheric BC measurements, and more observational BC deposition data are required to assess the climate impact of BC in Arctic snow.
Vertical segregation among pathways mediating nitrogen loss (N2 and N2O production) across the oxygen gradient in a coastal upwelling ecosystem
Authors: Galán Alexander , Thamdrup Bo , Saldías Gonzalo S. , Farías Laura 
Published: October 2017

Abstract. The upwelling system off central Chile (36.5° S) is seasonally subjected to oxygen (O2)-deficient waters, with a strong vertical gradient in O2 (from oxic to anoxic conditions) that spans a few metres (30–50 m interval) over the shelf. This condition inhibits and/or stimulates processes involved in nitrogen (N) removal (e.g. anammox, denitrification, and nitrification). During austral spring (September 2013) and summer (January 2014), the main pathways involved in N loss and its speciation, in the form of N2 and/or N2O, were studied using 15N-tracer incubations, inhibitor assays, and the natural abundance of nitrate isotopes along with hydrographic information. Incubations were developed using water retrieved from the oxycline (25 m depth) and bottom waters (85 m depth) over the continental shelf off Concepción, Chile. Results of 15N-labelled incubations revealed higher N removal activity during the austral summer, with denitrification as the dominant N2-producing pathway, which occurred together with anammox at all times. Interestingly, in both spring and summer maximum potential N removal rates were observed in the oxycline, where a greater availability of oxygen was observed (maximum O2 fluctuation between 270 and 40 µmol L−1) relative to the hypoxic bottom waters ( <  20 µmol O2 L−1). Different pathways were responsible for N2O produced in the oxycline and bottom waters, with ammonium oxidation and dissimilatory nitrite reduction, respectively, as the main source processes. Ammonium produced by dissimilatory nitrite reduction to ammonium (DNiRA) could sustain both anammox and nitrification rates, including the ammonium utilized for N2O production. The temporal and vertical variability of δ15N-NO3− confirms that multiple N-cycling processes are modulating the isotopic nitrate composition over the shelf off central Chile during spring and summer. N removal processes in this coastal system appear to be related to the availability and distribution of oxygen and particles, which are a source of organic matter and the fuel for the production of other electron donors (i.e. ammonium) and acceptors (i.e. nitrate and nitrite) after its remineralization. These results highlight the links between several pathways involved in N loss. They also establish that different mechanisms supported by alternative N substrates are responsible for substantial accumulation of N2O, which are frequently observed as hotspots in the oxycline and bottom waters. Considering the extreme variation in oxygen observed in several coastal upwelling systems, these findings could help to understand the ecological and biogeochemical implications due to global warming where intensification and/or expansion of the oceanic OMZs is projected.
Low-resolution Australasian palaeoclimate records of the last 2000 years
Authors: Dixon Bronwyn C. , Tyler Jonathan J. , Lorrey Andrew M. , Goodwin Ian D. , Gergis Joëlle , Drysdale Russell N. 
Published: October 2017

Abstract. Non-annually resolved palaeoclimate records in the Australasian region were compiled to facilitate investigations of decadal to centennial climate variability over the past 2000 years. A total of 675 lake and wetland, geomorphic, marine, and speleothem records were identified. The majority of records are located near population centres in southeast Australia, in New Zealand, and across the maritime continent, and there are few records from the arid regions of central and western Australia. Each record was assessed against a set of a priori criteria based on temporal resolution, record length, dating methods, and confidence in the proxy–climate relationship over the Common Era. A subset of 22 records met the criteria and were endorsed for subsequent analyses. Chronological uncertainty was the primary reason why records did not meet the selection criteria. New chronologies based on Bayesian techniques were constructed for the high-quality subset to ensure a consistent approach to age modelling and quantification of age uncertainties. The primary reasons for differences between published and reconstructed age–depth models were the consideration of the non-singular distribution of ages in calibrated 14C dates and the use of estimated autocorrelation between sampled depths as a constraint for changes in accumulation rate. Existing proxies and reconstruction techniques that successfully capture climate variability in the region show potential to address spatial gaps and expand the range of climate variables covering the last 2000 years in the Australasian region. Future palaeoclimate research and records in Australasia could be greatly improved through three main actions: (i) greater data availability through the public archiving of published records; (ii) thorough characterisation of proxy–climate relationships through site monitoring and climate sensitivity tests; and (iii) improvement of chronologies through core-top dating, inclusion of tephra layers where possible, and increased date density during the Common Era.
Climate indices for the Baltic states from principal component analysis
Authors: Bethere Liga , Sennikovs Juris , Bethers Uldis 
Published: October 2017

Abstract. We used principal component analysis (PCA) to derive climate indices that describe the main spatial features of the climate in the Baltic states (Estonia, Latvia, and Lithuania). Monthly mean temperature and total precipitation values derived from the ensemble of bias-corrected regional climate models (RCMs) were used. Principal components were derived for the years 1961–1990. The first three components describe 92 % of the variance in the initial data and were chosen as climate indices in further analysis. Spatial patterns of these indices and their correlation with the initial variables were analyzed, and it was detected (based on correlation coefficient between principal components and initial variables) that higher values in each index corresponded to locations with (1) less distinct seasonality, (2) warmer climate, and (3) wetter climate. In addition, for the pattern of the first index, the impact of the Baltic Sea (distance to coast) was apparent; for the second, latitude and elevation were apparent, and for the third elevation was apparent. The loadings from the chosen principal components were further used to calculate the values of the climate indices for the years 2071–2100. An overall increase was found for all three indices with minimal changes in their spatial pattern.
Fog-based automatic true north detection for absolute magnetic declination measurement
Authors: Gonsette Alexandre , Rasson Jean , Bracke Stephan , Poncelet Antoine , Hendrickx Olivier , Humbled François 
Published: October 2017

Abstract. Absolute magnetic measurements are of great importance in magnetic observatories. They allow not only instrument calibration but also data quality checking. They require the vertical and the geographic or true north as reference directions, usually determined by means of a level and by pointing an azimuth mark, respectively. We present here a novel system able to measure the direction of the magnetic field and of the vertical and true north. A design of a north seeker is proposed taking into account sensor bias as well as misalignment errors. Different methods are derived from this model and measurement results are presented. A measurement test at high latitude is also shown.
DIREITO DESPORTIVO: A VISÃO DOS EGRESSOS EM EDUCAÇÃO FÍSICA
Authors: FALQUETO Flávia Couto , LOPES Chaysther De Andrade 
Published: October 2017

Resumo: Este trabalho tem como objetivo Analisar o conhecimento que os professores egressos da Faculdade de Educação Física (FEF) do Campus Jataí (CAJ) da Universidade Federal de Goiás (UFG), que participam de eventos desportivos com equipes amadoras e escolares, tem do Direito Desportivo. A pesquisa foi realizada com egressos do curso de Educação Física, treinadores ou técnicos de equipes e que estão trabalhando com treinamento desportivo a nível amador com equipes escolares ou não. Os resultados desta investigação poderão contribuir na divulgação da realidade encontrada, propiciando aos futuros e aos atuais profissionais da área do desporto o acesso às informações sobre o direito desportivo e suas responsabilidades na prática de sua profissão. A metodologia utilizada é de cunho qualitativo descritivo, com uma análise temática sobre o assunto. Os sujeitos foram sete professores de Educação Física, egressos do curso FEF/CAJ/UFG, que atuam em escolas públicas e particulares no município. O instrumento de pesquisa foi um roteiro de uma entrevista semi-estruturada, onde a partir dos resultados analisados, três categorias emergiram da realidade investigada: A primeira referiu-se às responsabilidades inerentes ao profissional de Educação Física, a segunda aos procedimentos e normas adotados por aqueles profissionais diante das práticas desportivas, formal e não-formal, e, a terceira abordou o conhecimento sobre o direito desportivo, o acesso a esse conhecimento e sua relevância. Foi possível constatar que o conhecimento acerca do Direito Desportivo demonstrado pelos entrevistados é baseado no senso comum.