bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Comparison of Particulate-Bound Polycyclic Aromatic Hydrocarbons Long-Range Transported from the Asian Continent to the Noto Peninsula and Fukue Island, Japan
Authors: Yang Lu , Tang Ning , Matsuki Atsushi , Takami Akinori , Hatakeyama Shiro , Kaneyasu Naoki , Nagato Edward G. , Sato Kei , Yoshino Ayako , Hayakawa Kazuichi 
Published: December 2018

Abstract
This is the first comparative study to examine two different background monitoring sites in Japan to compare differences in the concentration and composition of long-range-transported polycyclic aromatic hydrocarbons(PAHs) from the Asian continent. This study chose the Noto Peninsula (the Kanazawa University Wajima Air Monitoring Station; WAMS) and Fukue Island (the Fukue-jima Atmosphere and Aerosol Monitoring Station; FAMS) to compare 10 weekly periods in 2009 and 2010 from autumn to spring, seasons that are strongly influenced by the Asian continent. The PAHs concentration differed significantly for most periods at these two sites. The backward trajectory analysis found that the low height of the air mass may cause the low concentration and the similar air mass condition could result in the similar concentration. The concentration of long-range-transported PAHs depended more on the source of the coal combustion areas such as Northeast China in heating period.
LOW-TEMPERATURE SYNTHESIS OF BARIUM TITANITE IN AQUEOUS SOLUTION
Authors: Agafonov Alexandr V. , Ivanov Konstantin V. , Alekseeva Olga V. 
Published: December 2018

Barium titanate powder with average particle size near 300 nm was produced using the low-temperature synthesis. It was established using scanning electron microscopy that at the thermal treatment, the particles gradually decrease with the formation of polydisperse aggregates. Based on the thermogravimetric analysis of the synthesized powder held in air for 4 months, it was shown that along with the low-temperature phase, the sample contains a high-temperature phase of carbonates, which removes at ~ 900 °C. Sorption characteristics of barium titanate thermally treated at various temperatures were obtained from the results of adsorption-desorption of nitrogen vapors. The specific surface area of the BaTiO3 powder was 76 m2/g. It was found that further heat treatment leads to a decrease in the specific surface area. The X-ray diffraction analysis of barium hydroxotitanil annealed at temperatures from 120 °C to 800 °C showed that the thermal treatment of the sample leads to the formation of a completely formed phase of barium titanate. The DSC temperature was used to determine the Curie temperatures for a HTB powder thermally treated in the temperature range from 120 to 800 °C. Dielectric spectra of suspensions of the synthesized powder were obtained during the heat treatment.
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Relationship between food consumption, nutritional status and school performance
Authors: Schmidt Aline Lúcia , Strack Maína Hemann , Conde Simara Rufatto 
Published: December 2018

Introduction: Adequate feeding during childhood and adolescence is extremely important, due to its act directly on physical and cognitive development.
Objective: To verify the relationship between dietary intake and nutritional status with school performance.
Methods: It is an observational, quantitative and cross-sectional study of 134 students aged 9 to 11 years. The nutritional status was measured using the Body Mass Index by age and gender, and food consumption was assessed through the 3-day Dietary Recall. For the knowledge of the school performance, the report cards of 2016 were consulted. A questionnaire was used to collect data regarding the marital status.
Results: Regarding nutritional status, 59,7% of the students presented eutrophy, 18,7% overweight, 15,6% obesity and 6,0% underweight. The consumption of calcium (p<0,001) and iron (p<0,001) were significantly below the values recommended by the Dietary Reference Intakes. Obese children consumed significantly more lipids (p=0,026) and calories (p=0,003) than the other students. The participation of ultra processed foods represented 35.50% of the total energy value, with a positive correlation between their consumption and the amount of calories consumed (p=0,022) and inverse correlation with zinc intake (p=0,007).
Conclusion: There was no significant association between dietary intake and nutritional status with school performance, but it was found that the marital status of the parents was associated with student performance, the children of married parents had a higher educational achievement than the children of separated parents.
Avaliação radiográfica da interface de reparo em resina bulk fill
Authors: Teixeira Ana Paula Araujo , Canedo Paula Mathias de Moraes , Gomes Rafael Soares 
Published: December 2018

<p><strong>Objetivo:</strong> avaliar radiograficamente a interface de reparo em resina bulk fill (Opus bulk fill - FGM) com diferentes protocolos de adesão. <strong>Metodologia: </strong>foram confeccionados 30 corpos de prova em formato de cubo, nas dimensões de 4mm x 6mm. Os corpos foram randomizados e divididos entre os grupos: G1: ácido fosfórico a 37% (Dentsply) + adesivo (Ambar - FGM); G2: ácido fosfórico a 37% (Dentsply) + silano (Prosil- FGM) + adesivo (Ambar–FGM) e G3: Adesivo auto-condicionante (Ambar universal -FGM). Após os tratamentos, os corpos foram posicionados em uma matriz metálica de 4mm x 8mm para receber novos incrementos de resina bulk fill. Para análise do reparo, as amostras foram submetidas a radiografias digitais (Micro Imagem), com disparo de 0,16 segundos. Aplicou-se o efeito de contraste filtro de tele MI para permitir a avaliação visual. Para análise estatística foi utilizado o teste exato de Fisher. <strong>Resultados:</strong> o grupo 2 apresentou em metade dos espécimes avaliados, uma interface não visível, porém, não diferiu estatisticamente dos outros grupos que em sua maioria apresentaram a interface visível em mais de 50% da extensão do reparo. <strong>Conclusão:</strong> os protocolos realizados na interface da resina bulk fill não foram suficientes para gerar diferenças entre as imagens dos grupos tratados.</p>
A Stimuli‐Responsive Nanocomposite for 3D Anisotropic Cell‐Guidance and Magnetic Soft Robotics
Authors: Tognato Riccardo , Armiento Angela R. , Bonfrate Valentina , Levato Riccardo , Malda Jos , Alini Mauro , Eglin David , Giancane Gabriele , Serra Tiziano 
Published: December 2018

AbstractStimuli‐responsive materials have the potential to enable the generation of new bioinspired devices with unique physicochemical properties and cell‐instructive ability. Enhancing biocompatibility while simplifying the production methodologies, as well as enabling the creation of complex constructs, i.e., via 3D (bio)printing technologies, remains key challenge in the field. Here, a novel method is presented to biofabricate cellularized anisotropic hybrid hydrogel through a mild and biocompatible process driven by multiple external stimuli: magnetic field, temperature, and light. A low‐intensity magnetic field is used to align mosaic iron oxide nanoparticles (IOPs) into filaments with tunable size within a gelatin methacryloyl matrix. Cells seeded on top or embedded within the hydrogel align to the same axes of the IOPs filaments. Furthermore, in 3D, C2C12 skeletal myoblasts differentiate toward myotubes even in the absence of differentiation media. 3D printing of the nanocomposite hydrogel is achieved and creation of complex heterogeneous structures that respond to magnetic field is demonstrated. By combining the advanced, stimuli‐responsive hydrogel with the architectural control provided by bioprinting technologies, 3D constructs can also be created that, although inspired by nature, express functionalities beyond those of native tissue, which have important application in soft robotics, bioactuators, and bionic devices.
Tuning Hole Transport Layer Using Urea for High‐Performance Perovskite Solar Cells
Authors: Elbohy Hytham , Bahrami Behzad , Mabrouk Sally , Reza Khan Mamun , Gurung Ashim , Pathak Rajesh , Liang Mao , Qiao Qiquan , Zhu Kai 
Published: December 2018

AbstractInterface engineering is critical to the development of highly efficient perovskite solar cells. Here, urea treatment of hole transport layer (e.g., poly(3,4‐ethylene dioxythiophene):polystyrene sulfonate (PEDOT:PSS)) is reported to effectively tune its morphology, conductivity, and work function for improving the efficiency and stability of inverted MAPbI3 perovskite solar cells (PSCs). This treatment has significantly increased MAPbI3 photovoltaic performance to 18.8% for the urea treated PEDOT:PSS PSCs from 14.4% for pristine PEDOT:PSS devices. The use of urea controls phase separation between PEDOT and PSS segments, leading to the formation of a unique fiber‐shaped PEDOT:PSS film morphology with well‐organized charge transport pathways for improved conductivity from 0.2 S cm−1 for pristine PEDOT:PSS to 12.75 S cm−1 for 5 wt% urea treated PEDOT:PSS. The urea‐treatment also addresses a general challenge associated with the acidic nature of PEDOT:PSS, leading to a much improved ambient stability of PSCs. In addition, the device hysteresis is significantly minimized by optimizing the urea content in the treatment.
Local Structure of High Performance TiOx Electron‐Selective Contact Revealed by Electron Energy Loss Spectroscopy
Authors: Mochizuki Takeya , Gotoh Kazuhiro , Kurokawa Yasuyoshi , Yamamoto Takahisa , Usami Noritaka 
Published: December 2018

AbstractRecent increases in the power conversion efficiency of crystalline silicon (c‐Si) heterojunction (SHJ) solar cells are due to implementation of carrier‐selective contacts (CSCs) with high passivation performance and low contact resistivity. These electrical properties of CSCs significantly depend on the nature of the CSCs/c‐Si interface at the atomistic scale, and precise control of the interface with the SiOx interlayer is the key to obtaining superior electrical properties. It is shown that a TiOx/c‐Si structure with an interlayer prepared by nitric acid at room temperature shows the best performance among points with five different interlayer formation methods. The underlying mechanisms are investigated by combining high‐resolution transmission electron microscopy and electron energy loss (EEL) spectroscopy. The EEL spectra reveal that the Si:O ratio of an as‐deposited SiOx interlayer is nonstoichiometric (x < 2), which could contribute to lower contact resistivity. Furthermore, the as‐deposited SiOx leads to formation of a Ti containing SiOx layer with few oxygen vacancies after forming gas annealing, resulting in the significant enhancement of passivation performance. These results show that the control of the interlayer with atomistic scale is of crucial importance to realize higher power conversion efficiency of SHJ solar cells.
Decoloniality as a Framework for Indigenous Youth Suicide Prevention Pedagogy: Promoting Community Conversations About Research to End Suicide
Authors: Trout Lucas , McEachern Diane , Mullany Anna , White Lauren , Wexler Lisa 
Published: December 2018

AbstractIndigenous youth suicide remains a substantial health disparity in circumpolar communities, despite prevention efforts through primary health care, public health campaigns, school systems, and social services. Innovations in prevention practice move away from expert‐driven approaches to emphasize local control through processes that utilize research evidence, but privilege self‐ determined action based on local and personal contexts, meanings, and frameworks for action. “Promoting Community Conversations About Research to End Suicide” is a community health intervention that draws on networks of Indigenous health educators in rural Alaska, who host learning circles in which research evidence is used to spark conversations and empower community members to consider individual and collective action to support vulnerable people and create health‐promoting conditions that reduce suicide risk. The first of nine learning circles focuses on narratives of local people who link the contemporary youth suicide epidemic to 20th century American colonialism, and situates prevention within this context. We describe the theoretical framework and feasibility and acceptability outcomes for this learning circle, and elucidate how the educational model engages community members in decolonial approaches to suicide prevention education and practice, thus serving as a bridge between Western and Indigenous traditions to generate collective knowledge and catalyze community healing.
Peptide‐Coated Platinum Nanoparticles with Selective Toxicity against Liver Cancer Cells
Authors: Shoshan Michal S. , Vonderach Thomas , Hattendorf Bodo , Wennemers Helma 
Published: December 2018

AbstractPeptide‐stabilized platinum nanoparticles (PtNPs) were developed that have significantly greater toxicity against hepatic cancer cells (HepG2) than against other cancer cells and non‐cancerous liver cells. The peptide H‐Lys‐Pro‐Gly‐dLys‐NH2 was identified by a combinatorial screening and further optimized to enable the formation of water‐soluble, monodisperse PtNPs with average diameters of 2.5 nm that are stable for years. In comparison to cisplatin, the peptide‐coated PtNPs are not only more toxic against hepatic cancer cells but have a significantly higher tumor cell selectivity. Cell viability and uptake studies revealed that high cellular uptake and an oxidative environment are key for the selective cytotoxicity of the peptide‐coated PtNPs.
Partial removal of protein associated with arabinoxylans: Impact on the viscoelasticity, crosslinking content, and microstructure of the gels formed
Authors: Mendez‐Encinas Mayra A. , Carvajal‐Millan Elizabeth , Yadav Madhav P. , López‐Franco Yolanda L. , Rascon‐Chu Agustín , Lizardi‐Mendoza Jaime , Brown‐Bojorquez Francisco , Silva‐Campa Erika , Pedroza‐Montero Martín 
Published: December 2018

ABSTRACTArabinoxylans (AX) treated with protease and dialyzed (AXP) or only dialyzed (AXD) formed gels showing an increase in the elastic modulus G′ (1291 and 1419 Pa, respectively) and the ferulic acid dimers (3.34 and 3.10 μg/mg polysaccharide, respectively) and trimers (0.51 and 0.53 μg/mg polysaccharide, respectively) in comparison to AX gels (767 Pa, 0.56 and 0.12 μg/mg polysaccharide, respectively). Nevertheless, the G′ values and crosslinking contents were not different among the AXP and AXD gels, suggesting that the amount of protein removed (54%) does not affect these parameters. Confocal laser scanning microscopy analysis showed that AXP treatment promotes the homogeneity of the gels. In addition, scanning electron microscopy observations indicated that AXD and particularly AXP gels had a more compact microstructure. Thus, the partial removal of protein associated with AX does not impact the viscoelasticity and crosslinking content of the gels formed but could improve their microstructural characteristics. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47300.
Relationship on structure and properties of polyurethane modified Diels–Alder addition polymer
Authors: Liu Xu , Liu Fangbo , Liu Simeng , Cui Min , Deng Jianru 
Published: December 2018

ABSTRACTA series of linear and crosslinked polyurethane modified materials were prepared by Diels–Alder cycloaddition reaction. Based on raw materials, some novel equations were designed and effects of equation parameters on the mechanical properties of modified material were explored. It was demonstrated that tensile strength of modified materials and elongation at break were changed from 3.68 to 18.71 MPa, 200 to 866%, respectively. In addition, the optimal reaction temperature of retro‐Diels–Alder (r‐DA) reaction was determined by differential scanning calorimeter (DSC). Gel permeation chromatography (GPC) and tensile experiments were used to characterize the properties of repolymerized material after degradation. The results indicated the optimal temperature of r‐DA for linear and crosslinked polyurethane modified materials is 127 and 150 °C. Moreover, after decomposed, the product was slowly repolymerized at 60 °C, and can more effectively restore material strength under the action of the solvent to achieve self‐healing effect. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47355.
Family and neighborhood socioeconomic inequality in cryptorchidism and hypospadias: A nationwide study from Sweden
Authors: Li Xinjun , Sundquist Jan , Hamano Tsuyoshi , Sundquist Kristina 
Published: December 2018

ObjectivesTo examine whether there is an association between neighborhood deprivation and incidence of cryptorchidism and hypospadias, after accounting for family‐level and individual‐level sociodemographic characteristics.MethodsAll boys born in Sweden between January 1, 2001 and December 31, 2010 were followed. Data were analyzed by multilevel logistic regression, with family‐level and individual‐level characteristics at the first level and level of neighborhood deprivation at the second level.ResultsDuring the study period, among a total of 497,584 boys, 8,584 (1.7%) and 3,704 (0.7%) were diagnosed with cryptorchidism and hypospadias, respectively. Cumulative rates for cryptorchidism and hypospadias increased with increasing levels of neighborhood deprivation. In the study population, 1.5 per 100 and 2.0 per 100 boys, in the least and most deprived neighborhoods were diagnosed with cryptorchidism and 0.7 per 100 and 0.9 per 100 boys were diagnosed with hypospadias. Incidence of hospitalization for cryptorchidism and hypospadias increased with increasing neighborhood‐level deprivation across all family‐level and individual‐level sociodemographic categories. The odds ratio (OR) for cryptorchidism and hypospadias for those living in high‐deprivation neighborhoods versus those living in low‐deprivation neighborhoods was 1.13 (95% confidence interval [CI] = 1.05–1.21) and 1.24 (95% CI = 1.12–1.37). High neighborhood deprivation remained significantly associated with higher odds of hypospadias after adjustment for family‐level and individual‐level sociodemographic characteristics (OR = 1.20, 95% CI = 1.08–1.35).ConclusionsThis study is the largest so far on neighborhood influences on cryptorchidism and hypospadias. Our results suggest that neighborhood deprivation is associated with a moderate incidence of hypospadias independent of family‐level and individual‐level sociodemographic characteristics.
Corporate sustainability in practice: An exploratory study of the sustainable development goals (SDGs)
Authors: Vildåsen Sigurd Sagen 
Published: December 2018

AbstractCompanies applying the sustainable development goals (SDGs) are likely to face a tension between business strategy and societal development. I develop this claim through inductive reasoning, drawing on an exploratory, and longitudinal case study of the company Plasto. The findings indicate that the SDGs framework is a well‐suited platform for debating social and environmental concerns with societal stakeholders. In addition, the framework facilitates organizational learning and internal collaboration. However, actors such as customers may see the generic nature of the SDGs as irrelevant when it comes to specific business operations. Following the inductive logic, I position the findings within ongoing debates in the field of corporate sustainability. Further research should acknowledge contradictory requirements from stakeholders as a theoretical starting point. This implies that the emerging management literature on paradox theory fits well to advance insights on SDG application in a business context.
Intrinsic and Extrinsic Heavy‐Atom Effects on the Multifaceted Emissive Behavior of Cyclic Triimidazole
Authors: Lucenti Elena , Forni Alessandra , Botta Chiara , Giannini Clelia , Malpicci Daniele , Marinotto Daniele , Previtali Andrea , Righetto Stefania , Cariati Elena 
Published: December 2018

AbstractConsidering that heavy halogen atoms can be used to tune the emissive properties of organic luminogens, the understanding of their role in photophysics is fundamental for materials engineering. Here, the extrinsic and intrinsic heavy‐atom effects on the photophysics of organic crystals were separately evaluated by comparing cyclic triimidazole (TT) with its monoiodo derivative (TTI) and its co‐crystal with diiodotetrafluorobenzene (TTCo). Crystals of TT showed room‐temperature ultralong phosphorescence (RTUP) originated from H‐aggregation. TTI and TTCo displayed two additional long‐lived components, the origin of which is elucidated through single‐crystal X‐ray and DFT/TDDFT studies. The results highlight the different effects of the I atom on the three phosphorescent emissions. Intrinsic heavy‐atom effects play a major role on molecular phosphorescence, which is displayed at room temperature only for TTI. The H‐aggregate RTUP and the I⋅⋅⋅N XB‐induced (XB=halogen bond) phosphorescence on the other side depend only on packing features.
Minimal residual disease by flow cytometry and allelic‐specific oligonucleotide real‐time quantitative polymerase chain reaction in patients with myeloma receiving lenalidomide maintenance: A pooled analysis
Authors: Gambella Manuela , Omedé Paola , Spada Stefano , Muccio Vittorio Emanuele , Gilestro Milena , Saraci Elona , Grammatico Sara , Larocca Alessandra , Conticello Concetta , Bernardini Annalisa , Gamberi Barbara , Troia Rossella , Liberati Anna Marina , Offidani Massimo , Rocci Alberto , Palumbo Antonio , Cavo Michele , Sonneveld Pieter , Boccadoro Mario , Oliva Stefania 
Published: December 2018

BackgroundMinimal residual disease (MRD) is one of the most relevant prognostic factors in patients with multiple myeloma (MM); however, the impact of maintenance therapy on MRD levels remains unclear. Among patients with newly diagnosed MM (NDMM) who received lenalidomide maintenance until they developed disease progression, the role of MRD status as a predictor of progression‐free survival (PFS) was evaluated by multiparameter flow cytometry (MFC) and allelic‐specific oligonucleotide real‐time quantitative polymerase chain reaction (ASO‐RQ‐PCR) analysis.MethodsSeventy‐three patients with NDMM enrolled in the RV‐MM‐EMN‐441 (clinical trials.gov identifier, NCT01091831) and RV‐MM‐COOP‐0556 (clinicaltrials.gov identifier, NCT01208766; European Myeloma Network EMN02/HO95 MM Trial) phase 3 trials who achieved at least a very good partial response after intensification/consolidation were included. The median patient age was 57 years (interquartile range, 53‐61 years), and all patients received lenalidomide maintenance until they developed progression. MRD was evaluated on bone marrow after intensification/consolidation, after 6 courses of maintenance, and every 6 months thereafter until clinical relapse using both ASO‐RQ‐PCR (sensitivity, 10−5) and MFC (sensitivity, from 10−4 to 10−5).ResultsAfter intensification/consolidation, 33 of 72 patients (46%) achieved a molecular complete response (m‐CR), and 44 of 70 (63%) achieved a flow complete response (flow‐CR). Almost 27% of patients who were MRD‐positive after consolidation became MRD‐negative during maintenance. After a median follow‐up of 38 months, PFS was prolonged in patients who achieved negative MRD status during maintenance according to results from both ASO‐RQ‐PCR analysis (hazard ratio, 0.29; 95% confidence interval, 0.14‐0.62; P = .0013) and MFC (hazard ratio, 0.19; 95% confidence interval, 0.09‐0.41; P < .001). The impact of negative MRD status on PFS was similar in all subgroups (ASCT and no‐ASCT; International Staging System stages I, II, and III; high‐risk and standard‐risk cytogenetics), and the two techniques were highly correlated.ConclusionsMRD status is a stronger predictor of PFS than standard risk factors, and lenalidomide maintenance further increases the rate of negative MRD results.