bluuebunny/crossref_metadata_2025 huggingface dataset:
Appendicular Body Composition Analysis: Validity of Bioelectrical Impedance Analysis Compared With Dual-Energy X-Ray Absorptiometry in Division I College Athletes
Authors: Brewer Gabrielle J. , Blue Malia N.M. , Hirsch Katie R. , Peterjohn Austin M. , Smith-Ryan Abbie E.
Published: August 2019

Brewer, GJ, Blue, MNM, Hirsch, KR, Peterjohn, AM, and Smith-Ryan, AE. Appendicular body composition analysis: Validity of bioelectrical impedance analysis compared with dual-energy x-ray absorptiometry in Division I college athletes. J Strength Cond Res 33(11): 2920–2925, 2019—The purpose of this study was to evaluate validity of appendicular body composition measurements measured from a multifrequency bioelectrical impedance analysis (MF-BIA) compared with a dual-energy x-ray absorptiometry (DXA) criterion in Division I athletes. One hundred sixty male (n = 44) and female (n = 116) collegiate athletes were enrolled: Men's Cross Country (n = 15), football linemen (n = 29), Women's Soccer (n = 27), Women's Field Hockey (n = 27), Women's Cross Country (n = 13), Women's Gymnastics (n = 16), and Women's Lacrosse (n = 33). Appendicular fat mass (FM) of the arms (AFM, right AFM, left AFM) and legs (LFM, right LFM, left LFM), appendicular fat-free mass (FFM) of the arms (AFFM, RAFFM, LAFFM) and legs (LFFM, RLFFM, LLFFM), total body FM and FFM, and total body %fat were collected from both devices. MF-BIA significantly underestimated appendicular FFM of the arms (AFFM mean difference [MD]: −0.7 kg; RAFFM: −0.4 kg; LAFFM: −0.4 kg, p < 0.001) and legs (LFFM MD: −3.8 kg; RLFFM: −1.9 kg; LLFFM: −1.9 kg, p < 0.001), and FM of the legs (LFM MD: −2.5 kg; RLFM: −1.3 kg; LLFM: −1.3 kg, p < 0.001). There was no significant difference in appendicular FM measures of the arms (p = 0.174). All measures held true for male subjects and female subjects. Female subjects produced smaller differences compared with male subjects. The lack of validity, from raw and relative error, between the devices for most appendicular measures (FFM of arms and FFM and FM legs) and all total body measures (FM, FFM, and %fat) suggest that this MF-BIA may not be accurate in measuring a lean, athletic, population compared with DXA.
ESTUDO PARA AVALIAÇÃO E REVITALIZAÇÃO DO PERIMETRO DE IRRIGAÇÃO DO ARROIO DURO
Authors: Porciúncula Gilson Simões , Stefanello Giusepe , Neta Maria Clotilde Carré Chagas , Cardoso Iulli Pitone
Published: August 2019

Os Perímetros Públicos de Irrigação (PPI) atendem regiões que necessitam de determinada demanda de água para sistemas de irrigação específicos, os quais são planejados para o cultivo de culturas predominantes e compartilhados por um conjunto de proprietários da região. Estes PPI foram implementados na sua maioria na décadas de 1960 e 1970 pelo governo federal, sendo que no início da década de 1990 a gestão dos mesmos passou a ser compartilhada pelo governo com associações, cooperativas, prefeituras, etc. No caso do Perímetro de Irrigação do Arroio Duro a gestão é realizada pela Associação de Usuários do Perímetro de Irrigação do Arroio Duro (AUD). A emancipação da gestão dos PPI é uma demanda abordada no governo federal, assim como é uma demanda das instituições que atuam na gestão compartilhada dos mesmos. A emancipação destes PPI depende de uma avaliação patrimonial que nesse âmbito foi executada em parceria pela Universidade Federal de Pelotas, Ministério do Desenvolvimento Regional e AUD. Desta forma o Projeto de Avaliação e Revitalização do Perímetro Público de Irrigação do Arroio Duro (PAR-AUD), tem como objetivo identificar e relatar o real estado de conservação, funcionalidade e operação do perímetro, e para isso o projeto foi sistematizado por meio de três metas. As metas 1 e 2, tratadas no presente estudo, utilizaram de levantamentos em campo, sensoriamento remoto, Desdobramento da Função Qualidade (QFD) e o Diagrama de Mudge, para inventariar, diagnosticar e propor a revitalização da infraestrutura do PPI do Arroio Duro. O estudo apresentou um parecer sobre o inventário patrimonial do PPI da AUD, assim como, identificou os principais problemas e uma lista de prioridades a ser implementada para a revitalização do perímetro.
Role of TRPM8 Channels in Altered Cold Sensitivity of Corneal Primary Sensory Neurons Induced by Axonal Damage
Authors: Piña Ricardo , Ugarte Gonzalo , Campos Matías , Íñigo-Portugués Almudena , Olivares Erick , Orio Patricio , Belmonte Carlos , Bacigalupo Juan , Madrid Rodolfo
Published: August 2019

The cornea is extensively innervated by trigeminal ganglion cold thermoreceptor neurons expressing TRPM8 (transient receptor potential cation channel subfamily M member 8). These neurons respond to cooling, hyperosmolarity and wetness of the corneal surface. Surgical injury of corneal nerve fibers alters tear production and often causes dry eye sensation. The contribution of TRPM8-expressing corneal cold-sensitive neurons (CCSNs) to these symptoms is unclear. Using extracellular recording of CCSNs nerve terminals combined within vivoconfocal tracking of reinnervation, Ca2+imaging and patch-clamp recordings of fluorescent retrogradely labeled corneal neurons in culture, we analyzed the functional modifications of CCSNs induced by peripheral axonal damage in male mice. After injury, the percentage of CCSNs, the cold- and menthol-evoked intracellular [Ca2+] rises and the TRPM8 current density in CCSNs were larger than in sham animals, with no differences in the brake K+currentIKD. Active and passive membrane properties of CCSNs from both groups were alike and corresponded mainly to those of canonical low- and high-threshold cold thermoreceptor neurons. Ongoing firing activity and menthol sensitivity were higher in CCSN terminals of injured mice, an observation accounted for by mathematical modeling. These functional changes developed in parallel with a partial reinnervation of the cornea by TRPM8(+) fibers and with an increase in basal tearing in injured animals compared with sham mice. Our results unveil key TRPM8-dependent functional changes in CCSNs in response to injury, suggesting that increased tearing rate and ocular dryness sensation derived from deep surgical ablation of corneal nerves are due to enhanced functional expression of TRPM8 channels in these injured trigeminal primary sensory neurons.

SIGNIFICANCE STATEMENTWe unveil a key role of TRPM8 channels in the sensory and autonomic disturbances associated with surgical damage of eye surface nerves. We studied the damage-induced functional alterations of corneal cold-sensitive neurons using confocal tracking of reinnervation, extracellular corneal nerve terminal recordings, tearing measurementsin vivo, Ca2+imaging and patch-clamp recordings of cultured corneal neurons, and mathematical modeling. Corneal nerve ablation upregulates TRPM8 mainly in canonical cold thermoreceptors, enhancing their cold and menthol sensitivity, inducing a rise in the ongoing firing activity of TRPM8(+) nerve endings and an increase in basal tearing. Our results suggest that unpleasant dryness sensations, together with augmented tearing rate after corneal nerve injury, are largely due to upregulation of TRPM8 in cold thermoreceptor neurons.
Learning from Competition: An Outcome-Based Introductory Activity for First-Year Biotechnology Undergraduates
Authors: Zhang Xiaoyan , Ye Ruifang , Hu Fengxian , Zheng Yitao , Gao Shuhong , Zhuang Yingping , Wang Qiyao , Bai Yunpeng
Published: August 2019

In recent years, accreditation standards for international engineering education have led to a dramatic rise in the use of outcome-based education at universities. In this system, enticing new undergraduate students to science and engineering, although challenging, is the first important step toward building students' career competencies. An ongoing effort to attract students to biotechnology was initiated 13 years ago in the School of Biotechnology at the East China University of Science and Technology in Shanghai. We describe the design and organization of the Microbe Competition, a program attracting a total of nearly 6,500 students as of 2018. In the competition, students need to pass the microbiology knowledge test, provide a practical experiment proposal related to the topic of competition, and finish the experiment under the supervision of teachers before getting final prizes. The competition develops students' competencies in acquiring and applying knowledge, problem solving, teamwork, communication, and experimental skills. By investigating students' feedback, we have been continuously improving the quality of competition to attract more students from the biotechnology major. We hope that by sharing our experience, we can help educators at other universities organize similar introductory activities on their own campuses.
How Did J. S. Bach’s “Aus Liebe will mein Heiland sterben,” BWV 244/49, Get to Be So Slow?
Authors: Melamed Daniel R.
Published: August 2019

A high point of almost every performance of J. S. Bach’s St. Matthew Passion is the tragic and time-stopping aria “Aus Liebe will mein Heiland sterben,” BWV 244/49. It appears to make sense in context, but commentators have long wondered how Bach and his librettist could have reused such somber music in the so-called Cöthen Funeral Music, BWV 244a, with a new text that opens “Mit Freuden sei die Welt verlassen”; the invocation of joy apparently represents a strong contradiction in affect with the music, almost uniformly understood to be very slow.

The slow tempo did not originate with Felix Mendelssohn, who included the aria in his second performance of the Passion in 1841. The aria’s character appears to have been established later in the nineteenth and early twentieth centuries in critical writings that regarded it as transcendent and representative of the Passion’s supposed pure tragedy. The aria arguably came to be seen as the St. Matthew Passion’s transcendent “slow movement,” a much-venerated instrumental type. Its character was codified in influential nineteenth-century editions that assigned slow tempo and metronome markings, and the recorded history of the work documents very slow tempos, only recently moderated. Adaptations of the aria have taken it to be very slow as well, and represent readings of the received performance tradition of the work. The aria’s doctrinal and affectively neutral text and its musical construction suggest the plausibility of a much faster tempo. And this, in turn, could explain why it occurred to Bach and his librettist Picander to reuse it for a text that begins with the concept of joy. The slow tempo of “Aus Liebe” and the problem of its reuse with a very different text turn out to be an inheritance from the nineteenth-century reception of the work.
Association of Iron Pills Consumption during Pregnancy with Incidence of Maternal Anemia in Indonesia (IFLS 5 Advanced Analysis Study)
Authors: Iswardani Octaldina , Hakimi Mohammad , Kurnia Arif Rahmat
Published: August 2019

Background: Indonesia Family Life Survey (IFLS) data in this study focused on the consumption of iron pills (Fe) during pregnancy and maternal anemia in Indonesia (Study analysis continued IFLS 5). The aim of this research is knowing the relationship of consumption of iron pills during pregnancy with the incidence of maternal anemia in Indonesia.

Methods: Study was an observational analytic study with a cross sectional design using IFLS 5 data which taken in 2014-2015.

Results: From the results of multiple logistic regression tests, the variables of education, mother’s residence and history of bleeding at delivery were significantly associated with the incidence of maternal anemia with OR (95% CI) sequentially 1.38 (1.003-1.92), 0.63 (0.46-0.88) and 1.74 (1.01-3.00). While consumption of iron-added pills during pregnancy was not associated with the incidence of maternal anemia in Indonesia (p = 0.760) and OR (95% CI) = 1.05 (0.76-1.43).

Conclusion: There was no significant relationship between the consumption of poor iron pills during pregnancy with the incidence of maternal anemia in Indonesia. There was a significant relationship between maternal education, maternal residence and bleeding history at birth with the incidence of anemia in the mother.
DIAGNOSIS OF ENDOCRINE DISEASE: Pituitary stalk interruption syndrome: etiology and clinical manifestations
Authors: Vergier Julia , Castinetti Frederic , Saveanu Alexandru , Girard Nadine , Brue Thierry , Reynaud Rachel
Published: September 2019

Pituitary stalk interruption syndrome (PSIS) is a congenital pituitary anatomical defect. This syndrome is an antenatal developmental defect belonging to the holoprosencephaly phenotype spectrum. It is heterogeneous regarding clinical, biological and radiological presentation and is characterized by the following triad: thin (<1 mm) or interrupted pituitary stalk connecting the hypothalamus to the pituitary gland, no eutopic posterior lobe, and hypoplasia or aplasia of the anterior lobe. This review reports current knowledge about the composite pathogenesis, for which underlying mechanisms remain unclear. Current data suggest genetic origins involving early developmental gene mutations with complex inheritance patterns and environmental influence, placing PSIS at the crossroads between Mendelian and multifactorial diseases. The phenotype associated with PSIS is highly heterogeneous with a high incidence of various combinations of hormonal deficiencies, sometimes associated with extra-pituitary birth defects. The age at onset is variable, but typical presentation is evolutive combined anterior pituitary hormone deficiencies at pediatric age, which progress even during adulthood to panhypopituitarism. Therefore, patients’ follow-up throughout life is essential for adequate management.
Considerações sobre a cronologia de algumas mudanças na morfologia verbal do (galego)-português
Authors: Carvalho Maria José
Published: September 2019

Neste artigo, estudaremos as cronologias das mudanças de alguns fenómenos relacionados com a morfologia verbal (galego)-portuguesa, nomeadamente: (i) Particípios passados de verbos da 2ª conjugação, (ii) O -d- intervocálico no morfema número-pessoal de P5; (iii) Verbos incoativos em  -ecer; (iv) Manutenção de -e em formas de Presente do indicativo (com fonema pré-palatal no radical); (v) Mudanças de radical e regularização analógica na flexão de alguns verbos; (vi) Particípios fortes e truncados. O corpus usado consiste numa coleção documental constituída por 153 documentos notariais lavrados entre os séculos XIII e XVI, no mosteiro de Santa Maria de Alcobaça e seus coutos. Não obstante reconhecermos que as cronologias não coincidem simultaneamente para todos os fenómenos, mostrar-se-á que é possível estabelecer diferentes etapas evolutivas, com balizas cronológicas diferenciadas e delimitadas. Esta constatação aponta para a necessidade de se considerar a dimensão diacrónica quando se pretende comparar as línguas ibero-românicas atuais.
Brachiocephalic Vein Aneurysm Treated with Surgery: A Case Report
Authors: Wi Jin hong
Published: September 2019

Brachiocephalic vein aneurysm is an extremely rare condition of unknown origin. It may be asymptomatic, presenting as an incidental finding or as a result of complications it causes. We report a case of a 54-year-old man who was asymptomatic and diagnosed with an isolated saccular aneurysm of the left brachiocephalic vein using contrast-enhanced computed tomography. The patient underwent aneurysmectomy through a median sternotomy with no requirement for a vascular graft or cardiopulmonary bypass. The patient had an uneventful postoperative course and remained well two months after the surgery.
Програмний модуль розв'язування систем диференціальних рівнянь Колмогорова-Чепмена для автоматизації надійнісного проектування
Authors: Yakovyna V. S. , Seniv M. M. , Lytvyn V. V. , Symets І. І.
Published: September 2019

Надзвичайно важливою компонентою якості складних технічних систем є їхня надійність, тобто властивість системи виконувати задані функції, зберігаючи в часі значення експлуатаційних показників у заданих межах, що відповідають умовам використання та заданим режимам технічного обслуговування, збереження і транспортування. Сучасний стан розвитку методів аналізу надійності технічних систем характеризується поєднанням аналітичних методів дослідження надійності з обчислювальними можливостями сучасних комп'ютерних засобів. Тому актуальною проблемою є автоматизація моделювання складних технічних систем яка, за умови відповідного рівня формалізації моделей, уможливлює їх побудову та проведення аналізу надійності з використанням сучасних комп'ютерних засобів. В роботі описано програмний модуль автоматизованого розв'язання систем диференціальних рівнянь Колмогорова-Чепмена, який є складовою програмного комплексу автоматизації надійнісного проектування складних технічних систем. Розроблений модуль дає змогу розв'язувати системи диференціальних рівнянь Колмогорова-Чепмена без залучення спеціалізованих програмних продуктів (Matlab, Mathcad) для аналізу структурних схем надійності та автоматизованого визначення надійнісних показників складних технічних систем. Представлений модуль, за рахунок інтеграції в програмний комплекс автоматизації надійнісного проектування, дає змогу швидше опрацьовувати вхідні дані великих об'ємів та візуалізувати отримані результати обчислень.
Análisis de la dislipidemia en adultos que viven con VIH
Authors: Melo Elizabete Santos , Costa Christefany Régia Braz , Foresto Jaqueline Scaramuza , Antonini Marcela , Pontes Priscila Silva , Reis Renata Karina
Published: September 2019

Introducción: En el contexto de las personas que viven con VIH (PVVIH), la dislipidemia es un tema que se ha venido discutiendo ampliamente, tanto por su origen multifactorial y sus implicaciones cardiovasculares, como por las posibles estrategias de prevención. De este modo, este estudio tiene por objeto evaluar la presencia de la dislipidemia en personas que viven con VIH y su asociación con aspectos sociodemográficos, actitudinales y clínicos. Materiales y Métodos: Estudio analítico, transversal realizado entre 2014 y 2016. Los datos fueron recolectados a través de entrevistas en las que se utilizaban cuestionarios y se consultaban las historias médicas. Para analizar la asociación, se utilizaron las pruebas Chi-Cuadrado y Exacto de Fisher, y la estadística Kappa para análisis de concordancia, con un nivel de significancia de p<0,05. Resultados: Participaron 340 personas en el estudio, de las cuales 59,1%, presentaron valores deseables en términos de colesterol total, 55,9% del HDL y 56,8% de triglicéridos. Las variables asociadas a la dislipidemia fueron: el colesterol total alterado y la edad a partir de 40 años (p=0,02); el HDL-c deseable y el sexo femenino (p=0,007); alteración de los triglicéridos y el tiempo de diagnóstico mayor a diez años (p=0,008); y el HDL-c deseable y la carga viral indetectable (p=0,04). Discusión: Aunque la dislipidemia sea un problema en el contexto del VIH, los valores deseables fueron más prevalentes, lo que se refleja sobre el efecto catalizador de la actividad inflamatoria causada por el VIH sobre las alteraciones lipídicas. Conclusiones: La dislipidemia en las PVVIH presentó, en su gran mayoría, valores deseables para el colesterol total, colesterol HDL y triglicéridos; y hubo una asociación entre los lípidos y los aspectos sociodemográficos y clínicos relacionados con el VIH.
Como citar este artigo: Melo ES, Costa CRB, Foresto JS, Antonini M, Pontes PS, Reis RK. Análise da dislipidemia em adultos vivendo com HIV. Rev Cuid. 2019; 10(2): e776. http://dx.doi.org/10.15649/cuidarte.v10i2.776
The Donosheniya and Reports of Don Cossacks in the Mid 18th c.: Source Analysis
Authors: Gorban Oksana
Published: September 2019

Introduction. The study is connected with the issues of electronic corpora of historical sources and diachronic linguistic corpora and is based on office documents of the 18th c. reserved in the Mikhailovsky Stanitsa Ataman archive fund (State Archive of Volgograd region).

Methods and materials. The article considers donosheniya and reports as the main documents that were submitted from lower to higher authorities and had “donoshenie” (message, report) and “report” (report) designation. Solving source meta-markup problems the author examines the origin and meaning of words “donoshenie” and “report”, analyzes the content and functions of the documents, their text format and verbal formulas representing the components of the form.

Analysis. The paper shows that the words have different origin, but common semantics reflecting the document function. Word “report” entered the Russian language in the early 18th century as a synonym for the original “donoshenie”. Initially, relevant documents were not distinguished, but gradually they were differentiated not only by name. Donosheniya can come from military men and civilians often contain a message and request. Reports are used mainly between host and stanitsa atamans, other military officials and are mostly informative documents. Reports are also often used as accompanying documents for other documents. The text format of donoshenie and report has similarities, but can be represented by different verbal formulas. As an accompany document report has a more concise and simple structure.

Results. The author concludes that including donoshenie and report to the created source corpus as independent documents is necessary for faciliting their search and more exact representation of using language units. Standard speech markers can be applied for automatic recognition of texts as well.
Exploiting Coarse-to-Fine Task Transfer for Aspect-Level Sentiment Classification
Authors: Li Zheng , Wei Ying , Zhang Yu , Zhang Xiang , Li Xin
Published: September 2019

Aspect-level sentiment classification (ASC) aims at identifying sentiment polarities towards aspects in a sentence, where the aspect can behave as a general Aspect Category (AC) or a specific Aspect Term (AT). However, due to the especially expensive and labor-intensive labeling, existing public corpora in AT-level are all relatively small. Meanwhile, most of the previous methods rely on complicated structures with given scarce data, which largely limits the efficacy of the neural models. In this paper, we exploit a new direction named coarse-to-fine task transfer, which aims to leverage knowledge learned from a rich-resource source domain of the coarse-grained AC task, which is more easily accessible, to improve the learning in a low-resource target domain of the fine-grained AT task. To resolve both the aspect granularity inconsistency and feature mismatch between domains, we propose a Multi-Granularity Alignment Network (MGAN). In MGAN, a novel Coarse2Fine attention guided by an auxiliary task can help the AC task modeling at the same finegrained level with the AT task. To alleviate the feature false alignment, a contrastive feature alignment method is adopted to align aspect-specific feature representations semantically. In addition, a large-scale multi-domain dataset for the AC task is provided. Empirically, extensive experiments demonstrate the effectiveness of the MGAN.
Collaborative, Dynamic and Diversified User Profiling
Authors: Liang Shangsong
Published: September 2019

In this paper, we study the problem of dynamic user profiling in the context of streams of short texts. Previous work on user profiling works with long documents, do not consider collaborative information, and do not diversify the keywords for profiling users’ interests. In contrast, we address the problem by proposing a user profiling algorithm (UPA), which consists of two models: the proposed collaborative interest tracking topic model (CITM) and the proposed streaming keyword diversification model (SKDM). UPA first utilizes CITM to collaboratively track each user’s and his followees’ dynamic interest distributions in the context of streams of short texts, and then utilizes SKDM to obtain top-k relevant and diversified keywords to profile users’ interests at a specific point in time. Experiments were conducted on a Twitter dataset and we found that UPA outperforms state-of-the-art non-dynamic and dynamic user profiling algorithms.
Robust Anomaly Detection in Videos Using Multilevel Representations
Authors: Vu Hung , Nguyen Tu Dinh , Le Trung , Luo Wei , Phung Dinh
Published: August 2019

Detecting anomalies in surveillance videos has long been an important but unsolved problem. In particular, many existing solutions are overly sensitive to (often ephemeral) visual artifacts in the raw video data, resulting in false positives and fragmented detection regions. To overcome such sensitivity and to capture true anomalies with semantic significance, one natural idea is to seek validation from abstract representations of the videos. This paper introduces a framework of robust anomaly detection using multilevel representations of both intensity and motion data. The framework consists of three main components: 1) representation learning using Denoising Autoencoders, 2) level-wise representation generation using Conditional Generative Adversarial Networks, and 3) consolidating anomalous regions detected at each representation level. Our proposed multilevel detector shows a significant improvement in pixel-level Equal Error Rate, namely 11.35%, 12.32% and 4.31% improvement in UCSD Ped 1, UCSD Ped 2 and Avenue datasets respectively. In addition, the model allowed us to detect mislabeled anomalies in the UCDS Ped 1.
Explainable Reasoning over Knowledge Graphs for Recommendation
Authors: Wang Xiang , Wang Dingxian , Xu Canran , He Xiangnan , Cao Yixin , Chua Tat-Seng
Published: August 2019

Incorporating knowledge graph into recommender systems has attracted increasing attention in recent years. By exploring the interlinks within a knowledge graph, the connectivity between users and items can be discovered as paths, which provide rich and complementary information to user-item interactions. Such connectivity not only reveals the semantics of entities and relations, but also helps to comprehend a user’s interest. However, existing efforts have not fully explored this connectivity to infer user preferences, especially in terms of modeling the sequential dependencies within and holistic semantics of a path.In this paper, we contribute a new model named Knowledgeaware Path Recurrent Network (KPRN) to exploit knowledge graph for recommendation. KPRN can generate path representations by composing the semantics of both entities and relations. By leveraging the sequential dependencies within a path, we allow effective reasoning on paths to infer the underlying rationale of a user-item interaction. Furthermore, we design a new weighted pooling operation to discriminate the strengths of different paths in connecting a user with an item, endowing our model with a certain level of explainability. We conduct extensive experiments on two datasets about movie and music, demonstrating significant improvements over state-of-the-art solutions Collaborative Knowledge Base Embedding and Neural Factorization Machine.
Research on the effectiveness of polycarboxylate superplasticisers with different side-chain lengths
Authors: Chen Xi-qin , Cheng Xu , Wen Xiao-dong , Xun Jun , Shen Yu-feng
Published: August 2019

Polycarboxylate superplasticiser (PCSs) are commonly used and studies to enhance their compatibility with other concrete raw materials have been undertaken. However, the effect of the side-chain length (SCL) in PCSs on the properties of cement-based materials (CBMs) has not gained enough attention. To fill this research gap, five types of PCSs with different SCLs were synthesised through a redox initiator system. The workability, hydration behaviour, microstructure formation and cracking sensitivity of CBMs containing PCSs with different SCLs were thoroughly examined. The results showed that, with an increase in the SCL of the PCS, the initial fluidity of the cement paste increased first and then decreased but fluidity losses decreased gradually. Compared with PCSs with short side-chains, PCSs with long side-chains improved the hydration heat peak value and shortened the dissolution period, thus accelerating the hydration and microstructure formation of cement. The 28 d strength and anti-cracking behaviour of the CBMs increased first and then decreased with an increase in SCL. The results of this study suggest that there is an optimum SCL for PCSs that produces good workability and the lowest crack sensitivity in CBMs.
Exporters of Services: A Look at U.S. Exporters Outside of the Manufacturing Sector
Authors: Tito Maria D.
Published: August 2019

Using transaction data for the U.S., this paper presents a series of stylized facts on exporters in services industries. We find that most of the basic facts on manufacturing exporters extend to the services sectors with three important differences. First, the participation rate of services firms in foreign markets is much lower than that of manufacturing firms. Second, the size premia at services exporters are significantly higher than those among manufacturers. Third, the survival rates of services exporters tend to be lower than that of manufacturing exporters. All three facts are compatible with the hypothesis that firms in services sectors face larger trade costs. A simple calibration suggests that services firms face two-to-three-time higher fixed costs than manufacturing exporters.
Silica-Lipid Hybrid Microparticles as Efficient Vehicles for Enhanced Stability and Bioaccessibility of Curcumin
Authors: Ma Yudi , Wang Qiang , Wang Dantong , Huang Juan , Sun Rui , Mao Xinyu , Tian Yuan , Xia Qiang
Published: September 2019

Curcumin is an active ingredient with multiple functions, but its application is often restricted due to its poor water solubility, weak stability, and consequently low bioaccessibility. Based on this, the aim of this work is to develop a new vehicle to overcome these restrictions. Here we developed a curcumin-loaded nanoemulsion and then curcumin-loaded silica-lipid hybrid microparticles through emulsification and vacuum drying, respectively. The loading of curcumin in the nanoemulsion and microparticles was (0.30±0.02) and (0.67±0.02) %, respectively. FTIR and XRD analyses of microparticles revealed that curcumin was encapsulated in porous, amorphous silica. In vitro antioxidant activities showed that the encapsulation would not affect the antioxidant activity of curcumin. In vitro simulated digestion indicated that nanoemulsion and microparticles had higher curcumin bioaccessibility than the control group. The storage stability of microparticles remained the same during 6 weeks in the dark at 4, 25 and 40 °C. Moreover, the microparticles had a better chemical stability than nanoemulsion under the light. The cell viability was over 80 % when the concentration of nanocarriers was less than 45 μg/mL. Hence, the microparticles could be a promising means to load curcumin and improve its solubility, light stability and bioaccessibility.
Linking leucaena to carbon abatement opportunities in Australia
Authors: King Karen , Burgess Rachel
Published: September 2019

Keynote paper presented at the International Leucaena Conference, 1‒3 November 2018, Brisbane, Queensland, Australia.The Australian Government has committed to reducing its greenhouse gas (GHG) emissions by 26‒28% below 2005 levels by 2030. The Emissions Reduction Fund (ERF), a center-piece of Australia’s climate change policies, provides incentives to reduce GHG emissions through economy-wide eligible activities, such as energy efficiency, waste management, revegetation, livestock management and savanna fire management. Emissions Reduction Fund methods define eligible activities, how to quantify abatement resulting from the activity and the required compliance measures.The requirements for developing ERF methods that quantify GHG abatement estimates resulting from eligible activities are described. Leucaena planting is used as an example. For an ERF method to be made and maintained, the activity must meet all the legislative requirements. This includes meeting the offsets integrity standards and having regard to any adverse environmental, economic and social impacts.
Leucaena leucocephala introduction into a tropical pasture in the Chaco region of Argentina. Effects on soil carbon and total nitrogen
Authors: Banegas Natalia , Corbella Roberto , Viruel Emilce , Plasencia Adriana , Roig Belen , Radrizzani Alejandro
Published: September 2019

Keynote paper presented at the International Leucaena Conference, 1‒3 November 2018, Brisbane, Queensland, Australia.The introduction of leucaena (Leucaena leucocephala), apart from increasing animal production, improves soil fertility through biological nitrogen (N) fixation and its deep-rooted system. There is limited information on carbon and N dynamics in hedgerow silvopastoral systems, particularly in the subsoil profile. The concentrations and vertical distribution of organic carbon (OC) and total N , and their fractions (particulate and associate forms) in the profile (0‒100 cm) of a 4-year-old leucaena stand in a Urochloa brizantha-Chloris gayana pasture were compared with those in the adjacent pure tropical grass (U. brizantha) pasture. Leucaena introduction increased the OC concentration in the subsoil (20‒100 cm) by 45%, particularly the stable form (associate OC) in the deepest horizon (50‒100 cm). This was attributed to a greater abundance of leucaena roots deeper in the profile than for grass. Leucaena also enhanced by 7.6% the N concentration (from 0.131 to 0.141%) in the topsoil (0‒20 cm) associated with an increment in the labile form (particulate organic N), due to leaf deposition, recycling of animal feces and nodule-N turnover from N fixation. Leucaena establishment has the potential to improve soil fertility and hence availability of N to companion grass growth, and can be utilized as a greenhouse gas mitigation strategy.
The inclusion of Leucaena diversifolia in a Colombian beef cattle production system: An economic perspective
Authors: Enciso Karen , Sotelo Mauricio , Peters Michael , Burkart Stefan
Published: September 2019

Keynote paper presented at the International Leucaena Conference, 1‒3 November 2018, Brisbane, Queensland, Australia.Despite the great potential of legumes in cattle production, their adoption and use throughout the tropical world remain limited. While this is largely attributed to factors such as limited knowledge or access to credit, lack of information on the viability and profitability of the technology can influence the adoption decision. The objective of this study is to evaluate the profitability of including Leucaena diversifolia, accession ILRI 15551 in a Colombian beef cattle production system. For this purpose, we use data from a grazing experiment comparing a grass-legume association (Brachiaria hybrid cv. Cayman and L. diversifolia) with a grass monoculture (cv. Cayman) in the Valle del Cauca department, both with the purpose of beef production. We use a discounted cash flow model, developed with the simulation software @Risk, which considers inherent risk and uncertainty factors in these types of rural investment projects, under three different pasture degradation scenarios. The results indicate that the inclusion of L. diversifolia is financially profitable and substantially improves the associated risk and performance indicators. Profitability indicators increased in a range of 15‒110%, and the probability of suffering economic losses decreased from 72% to 0%. The results were directly related to the increases in animal productivity (49%) and efficiency resulting from including the legume. This work shows that L. diversifolia has significant potential to increase both animal production and profitability, which is conducive to the sustainable intensification of beef production in grazing systems.
desarrollo como frontera de la conservación:
Authors: Cabral Victoria N. , García Germán O. , Gorostegui-Valenti Ariadna
Published: September 2019

El presente artículo tiene como punto de partida un proyecto de intervención territorial realizado en la Reserva de Biósfera Parque Atlántico Mar Chiquito, que tuvo como objetivo central mitigar el impacto de los residuos antrópicos en las zonas costeras. Durante la ejecución del proyecto, se identificó un choque de intereses entre distintos actores locales con posturas distintas respecto al desarrollo de la reserva y de la zona. Al tratarse de una reserva de usos múltiples, predomina en muchos casos una visión utilitarista, en la que la conservación es considerada un elemento incompatible con el desarrollo. Retomando esa consideración, el objetivo de este artículo es analizar las visiones que tienen los actores locales acerca del desarrollo y la conservación. Para ello, la estrategia metodológica consiste en la realización de entrevistas en profundidad a vecinos y vecinas, pescadores y operadores de pesca. A partir de ello, se propone un tipo de conservación óptima para la reserva, que sirva de referencia para otras con características similares.
Electronic and Student-created Dictionaries for Enhancing EFL Pronunciation and Vocabulary Usage
Authors: El-Sawy Hosam ElDeen Ahmed
Published: August 2019

The aim of this research is to investigate the effect of using electronic dictionaries combined with student-created dictionaries on English major students' pronunciation and vocabulary usage. Students' perceptions of this learning experience are also examined. The study combines both quantitative and qualitative research methodologies. Tests for pronunciation and vocabulary usage were designed and administered to73 English major students at Jouf University, KSA. Two questionnaires were designed to investigate students' perceptions. Results of the study revealed that the usage of electronic and student-created dictionaries improved students' pronunciation as well as their vocabulary usage abilities. Results also revealed that participants are willing to use both electronic and student-created dictionaries in vocabulary learning. The most frequent perceived benefits of electronic dictionaries are the speed of accessing the meaning of new vocabulary and getting clear correct pronunciation of them. The most frequent perceived benefits of student-created dictionaries are long retention and internalization of new vocabulary. Participants face some difficulties when using electronic dictionaries such as the inability to find accurate meaning of some vocabulary items and some technical problems. Participants face some difficulties with their student-created dictionaries such as difficulty in constructing illustrative sentences and time-consumption. The study recommends the incorporation of electronic and student-created dictionaries in vocabulary learning.
An Analysis of Trump’s 2016 Campaign Speeches from the Perspective of Social Force in Force-dynamics Theory
Authors: Wang Yunyou
Published: August 2019

Using Donald Trump’s presidential campaign speeches from 2016 as its corpus, this paper takes Talmy’s (1988) force-dynamics theory as a framework for deconstructing and analyzing political discourse from a cognitive perspective. In view of Newton’s second law of classical mechanics, this study analyzes the source and composition of social force within force-dynamics theory and constructs a cognitive model of discourse: F (social force) = m (quantification of discourse information) * a (discourse strategy), applicable to analysis of the relations among language, rights, and ideology in political discourse. In Trump’s campaign speeches, the quantification of discourse information and strategies using cognitive mechanisms such as metaphor, metonymy, and categorization greatly strengthens the social force of the discourse. This plays an important role in conveying Trump’s intention to voters, influencing the public’s emotions and winning their support—thus changing the original psychological state of voters and finally even influencing the election result.
The Relationships in Novels from the Perspective of Literary Ethics—Taking the Film Lolita as an Example
Authors: Zeng Zhaodong
Published: August 2019

Vladimir Vladimirovich Nabokov is an outstanding and productive Russian-Amercian writer. As the epitome work of the writer, Lolita must be the most controversial novel without doubt. This novel has been adapted into two versions of films: 1962 version and 1997 version. This paper will analyze the 1997 version of Lolita directed by Adrian Lyne. Most critics have mainly conducted the analysis of the film form the perspective of ethnics, postmodernism, narrative strategy, time as well as the image of death. However, there are few, if any, researches done from the perspective of literary ethics to dig into the relationships in the film. With the integration of ethics methods and literary research methods, literary ethics serves as a major new criticism approach and is mainly employed to conduct the analysis of literature. With the ethical factors unveiled in Lolita, this paper seeks to analyze three relationships: human beings and society, human beings and self, ethics and truth.  The paper interprets the film Lolita from the perspective of literary ethics, explores the relationships in the film, exploits Vladimir Vladimirovich Nabokov’ s pursuit of truth, kindness and beauty, and also hopes to provide a new direction for later research on the film Lolita.
A Study on the Improvement of College Students’ English Cultural Accomplishment under the Concept of General Education
Authors: Yin Xunfeng
Published: August 2019

Besides imparting knowledge, college English course is also a language carrier for students to understand western culture and a way to improve their comprehensive cultural literacy. Therefore, under the guidance of General Education theory, this paper attempts to integrate the appreciation of English literary translations into College English teaching, so that non-English majors can improve their English language ability, at the same time, they can improve their critical appreciation ability and cultural accomplishment.
An Elementary Algorithm for Solving a Diophantine Equation of Degree Fourth with Runge’s Condition
Authors: Nikolai N. Osipov , Medvedeva Maria I.
Published: August 2019

We propose an elementary algorithm for solving the diophantine equation (p(x; y) + a1x + b1y)(p(x; y) + a2x + b2y)- dp(x; y)- a3x - b3y -c = 0 ( *) of degree fourth, where p(x; y) denotes an irreducible quadratic form of positive discriminant and (a1; b1) ̸= (a2; b2). The last condition guarantees that the equation ( ) can be solved using the well known Runge’s method, but we prefer to avoid the use of any power series that leads to upper bounds for solutions useless for a computer implementation.
Development and study of the fault location function for the information system based on digital transformers
Authors: Yablokov A.A. , Filatova G.A. , Timofeev A.S. , Petrov A.E.
Published: September 2019

The existing methods of fault location (FL) on power lines are often unable to provide the required accuracy and are unstable to the influence of metering-distorting factors. The main source of errors of the FL devices is the primary current and voltage transducers. Using innovative current and voltage sensors (including Rogowski coils for physical measurement of the primary current derivative) as part of digital measuring transformers allows significant improvements in the accuracy of measuring electrical values during short-circuits. The aim of the work was to develop an enhanced accuracy FL function as part of an information system (IS) that takes into account the characteristics of non-traditional primary converters and, in general, digital current and voltage transformers. The methods of the electrical circuit theory, mathematical simulation and physical-mathematical modeling are used. The computer experiments are carried out in the modern modeling systems Matlab + Simulink and RSCAD, and the physical and mathematical modeling – in the real-time modeling complex RTDS. For modeling power transmission lines, the specific parameters were assumed to be known and unchanged. The developed FL function differs from its analogs as it uses information signals from digital current and voltage transformers, is characterized by operation stability under the influence of some metering-distorting factors (presence of transient resistance, changes in electrical load, breakdown phase, presence of capacitance of phases to earth, etc.) and an error not exceeding 8 % (at large distances and in the presence of transitional resistance in short-circuit locations) or 3 % (in the absence of metering-distorting factors). A prototype of the IS with the FL function has been designed and experimentally tested. The developed FL function allows increasing the accuracy of short-circuit location determination and reducing the time of finding the fault. Fault location IS data can be used by the operating personnel of electrical networks. The reliability of the obtained results is determined by the methods of the classical electrical circuit theory and the theory of electromagnetic transients in electrical power systems, and by the convergence of the results obtained in the study of the function accuracy in different modeling complexes.
A turizmus ágazat jelenlegi és potenciális éghajlati sérülékenységének területi különbségei Magyarországon
Authors: Sütő Attila , Fejes Lilian
Published: September 2019

A Magyar Bányászati és Földtani Szolgálat Nemzeti Alkalmazkodási Központ Főosztálya koordinálásában 2017 óta zajlik a Nemzeti Alkalmazkodási Térinformatikai Rendszer továbbfejlesztése projekt, amelynek C3 modulja a turizmus éghajlati sérülékenységének témakörét kutatta. A cikk célja a kutatás során kifejlesztett módszertan bemutatása a turizmus ágazat magyarországi éghajlati sérülékenységéről és annak kitettségi, érzékenységi, alkalmazkodóképességi dimenzióiról. A munkacsomag keretében a fogadóterületeket jellemző kitettségi, érzékenységi, alkalmazkodóképességi és éghajlati sérülékenységi mutatókat és területi különbségeket integráltan vizsgáltuk. A vizsgálat és a térképi ábrázolás a CIVAS modell lépésein haladt végig járási, három esettanulmány-régióban pedig települési léptékben, három időablakra: a jelenlegi állapot vizsgálata mellett a 2021–2050-es és a 2071–2100-es időszakokra. A három időablak mindegyikére két meteorológiai modell (EC-EARTH, CNRM-CM5) és az IPCC 5. értékelő jelentésében (AR5) az újabb generációs RCP (Representative Concentration Pathway) klímaváltozási szcenáriók közül kettő (RCP4.5, RCP8.5) alapján azonosítottuk a járási (az esettanulmányok esetében a települési) trendeket. Jelen vizsgálat jövőbeni kiterjesztésével várhatóan tovább mélyíthető a vizsgálat magyarázóereje és növelhető a hasznosíthatósága.
The own and the other in narratives about witchcraft of the northeast of Mexico
Authors: Verduzco Arguelles Gabriel Ignacio , Flores Treviño María Eugenia
Published: August 2019

The stories about witchcraft in northeastern of Mexico always present how some situations that seem daily and normal end up covering up their true reality that is negative and harmful, that is, people, things or situations that seem good, in reality they are evil situations. The cover-up mentioned above occurs in an irruption of the alien in the own, where the alien is that which does not belong to the daily reality of the speaker and that is therefore considered as threatening and dangerous. The own usually appears as the daily, the usual and ordinary in the lives of these people. This paper shows the linguistic expressions with which the own, the alien and that inversion of the reality of the speakers of the southeast of the Mexican state of Coahuila are referred to in a series of 21 oral narratives on witchcraft. These references use differences between fright, fear, terror and horror to discursively express this process. When the borders between the own and the alien are blurred, the linguistic expressions return to these narratives in horror stories and raise the notion, from witchcraft, of an upside down world.