bluuebunny/crossref_metadata_2025 huggingface dataset:
Bajra (Pearl Millet) “The Millennium Food”
Authors: Saraswat Shubhra , Krishna Sneha
Published: July 2019

Pearl Millet (Pennisetumglaucum) also known as Bajra is one of the oldest millet used by our ancestors and is one of the most important cereal grow in tropical semi arid regions of the world primarily Asia and Africa. It is known to have a very high fiber. In India, it is used as regular meal in states like Rajasthan and Gujarat. Previous studies have found that pearl millets are excellent source of micronutrients like iron and zinc. It also has certain antinutrient factors and inhibitors like phytic acid, polyphenols due to which the bio accessibility of iron and zinc is very low in pearl millet. Due to its potential health benefits it has now gained popularity, nutritionists and dieticians recommends it for the better health options. Bajra is very cheap millet known as “Poor People’s food”. It has enormous health benefits that it is being recommended to the patients of celiac disease, constipation and several noncommunicable diseases. This paper aims to review the potential health benefits of pearl millet.
Food Technology – Applied Research and Production Techniques
Authors: Gayathri V.
Published: July 2019

No Abstrcat.
EFL Learner's Self-concept: Repercussions of Native Speakerism
Authors: Fallas Escobar Christian
Published: July 2019

In Costa Rican universities, English as a foreign language (EFL) programs are often filled with practices and discourses that idealize native speakers of English and construct them as the models to follow. In these programs, instructors’ overreliance on native speaker proficiency models create unrealistic standards that can misinform EFL learners’ views of their proficiency as English speakers. As these students ‘fail’ to align their present L2 proficiency to the ideal praised in the classroom, they develop negative self-concepts, which lead them to characterize their proficiency as deficient and incomplete. In this paper, I examine tacitly validated practices and circulating narratives in two academic EFL programs in a public Costa Rican university regarding learners’ expected EFL proficiency and problematize the repercussions these unspoken expectations may have for these students’ overall self-concept as L2 speakers. In light of the results that I discuss herein, I advocate for the abandonment of the native speakerism trend that still prevails in the EFL programs in question and for the construction of EFL teaching practices that provide EFL learners with the validation they deserve for their expanding linguistic repertoire. En las universidades costarricenses, los programas de inglés como lengua extranjera están plagados de prácticas y discursos que idealizan al nativo hablante del inglés y lo posicionan como elmodelo a seguir. En estos programas, el uso constante y exclusivo de modelos nativo hablantes por parte de los profesores crean estándares poco reales que pueden distorsionar la percepción que los estudiantes tienen sobre sus capacidades en el idioma inglés. Esto debido a que cuando los estudiantes no logran alinear sus destrezas en la segunda lengua a la proficiencia que implícitamente se idealiza en la clase, estos desarrollan un auto-concepto negativo que los lleva a describir sus propias destrezas lingüísticas como deficientes e incompletas. Es por eso que en este estudio, me doy a la tarea de analizar narrativas circulantes en dos programas académicos de inglés como lengua extrajera de una universidad pública en Costa Rica, en cuanto al nivel de competencia en inglés que los estudiantes perciben se espera de ellos al terminar el programa, y problematizo las repercusiones que estas expectativas implícitas tienen en el auto-concepto de los discentes. A la luz de los resultados que aquí presento, abogo por la erradicación de la tendencia de idealizar al nativo hablante del idioma inglés que aún prevalece in los programas en cuestión y por la construcción de prácticas pedagógicas que validen las destrezas que los estudiantes desarrollan en programas de inglés como lengua extranjera.
Динамика концентрации хлорофилла a в Чёрном море по спутниковым измерениям
Authors: Финенко З. З. , Мансурова И. М. , Суслин В. В.
Published: July 2019

В отличие от контактных методов, использование спутниковых данных для изучения динамики хлорофилла a даёт возможность проводить исследования на больших масштабах с высокой частотой измерений. Такие наблюдения выполнены в глубоководной части и прибрежном районе Чёрного моря в период с 1998 по 2015 г. Они позволили определить годовую динамику концентрации хлорофилла a в поверхностном слое и выявить периодичность, интенсивность и продолжительность массового развития водорослей. Годовая динамика концентрации хлорофилла в западном и восточном циклонических круговоротах, а также в зоне шельфа у крымских и кавказских берегов имела одинаковый характер, повторяющийся из года в год. С августа-сентября по апрель-май следующего года изменение хлорофилла в большинстве случаев соответствовало нормальному распределению и имело вид колоколообразной кривой с максимумом в декабре-январе. В течение осеннего периода значения концентрации хлорофилла постепенно повышались по мере охлаждения воды, ослабления сезонного пикноклина и увеличения скорости потока биогенных веществ из нижних слоёв к поверхности. Зимой глубина перемешиваемого слоя достигала значений, в несколько раз больших, чем осенью, что могло приводить к уменьшению концентрации хлорофилла в единице объёма воды. Весеннее интенсивное развитие фитопланктона наблюдалось в конце марта ― начале апреля при ослаблении конвективного перемешивания и повышении устойчивости водного столба.
Fast Food 2016/17
Authors: Ruprich Jiří , Mandelová Lucie , Krbůšková Miroslava , Bischofová Svatava , Kalivodová Martina , Procházková Jana , Měřínská Zuzana , Ostrovská Dagmar , Horáková Klára , Zelníčková Lenka , Řeháková Jana , Holubová Zuzana , Hornová Jana , Řehůřková Irena
Published: July 2019

The aim of the Fast Food project was to determine not only the salt content but also total fat and trans-fatty acids (TFA) content of a selected range of products available in fast food chains all over the Czech Republic. The results show that regular consumption of products from fast food chains may contribute to an increase in the intake of fat and salt, whose excess is associated with an increased risk of cardiovascular disease, obesity, type 2 diabetes mellitus, and other negative effects on consumers' health. The knowledge obtained can be helpful in the creation of prevention programmes targeted at specific groups of frequent fast food restaurant goers (students, children, etc.).
Classification of Electrocardiogram Signals using Principal Component Analysis and Levenberg Marquardt Backpropagation for Detection Ventricular Tachyarrhythmia
Authors: Manik Astrima , Adiwijaya Adiwijaya , Utama Dody Qori
Published: July 2019

Abstract

Ventricular Tachyarrhythmia (VT) are the primary arrhythmias which are cause of sudden death. For someone who already has symptoms of VT should immediately perform an examination of one of them by using an electrocardiogram (ECG). An electrocardiogram is a recording of the heart's electrical results in a waveform. However, limited ability in analysis and diagnosis of ECG reading is still difficult to do. Therefore, the classification of ECG signals is needed to detect a person, especially those with VT or not. In this research focuses on the classification of VT heartbeats from ECG signals by using median filter method in preprocessing, Principal Component Analysis (PCA) as feature extraction and modified Backpropagation (MBP) as classification. This research used machine learning method that is a neural network with backpropagation modification that is Levenberg Marquardt to speed up network training process. The best VT detection performance results were based on the average accuracy of the overall scheme of 91.67% with the best parameters that principal component=10 and 20, hidden neuron=4, and µ value=0.001 as well training time 1 seconds with a comparison of train data and test data that is 80:20 percent.

Keywords: Electrocardiogram, Levenberg Marquardt Backpropagation, Median filter, Principal Component Analysis, and Ventricular Tachyarrhythmia
Perspectivas do Território no Sistema Agroalimentar Localizado: o Caso da Uva no Município de Marialva-PR
Authors: Pereira Jaiane Aparecida , Chagas Priscilla Borgonhoni , Bankuti Sandra Mara Schiavi
Published: July 2019

O presente trabalho tem por objetivo compreender as ações e os atores que configuram Marialva como um território produtor de uva fina. Articulam-se teoricamente questões sobre território e desenvolvimento territorial e sobre Sistema Agroalimentar Localizado (SIAL), que é um tipo de arranjo envolvendo relações de produção organizadas horizontal e verticalmente que emergem a partir da ação coletiva e da coordenação local em torno de um recurso territorializado. Para tanto, foi realizada uma pesquisa descritiva, com dados secundários e análise documental. Admitem-se avanços analíticos ao combinar a perspectiva do SIAL com uma abordagem ampliada de território, haja vista que um sistema agroalimentar localizado envolve não só aspectos econômicos e sociais, mas também aspectos políticos, culturais e da natureza, reciprocamente relacionados. Frisa-se a necessidade de que o desenvolvimento local seja alvo de discussão e análise por parte dos agentes públicos e da sociedade civil organizada, tendo em vista um maior desenvolvimento territorial.
Reforma do Judiciário e sua Representação Social nas Perspectivas de Magistrados do Tribunal de Justiça do Estado da Bahia
Authors: Sauerbronn Fernanda Filgueiras , Lourenço Rosenery Loureiro , Sauerbronn João Felipe Rammelt
Published: July 2019

A presente pesquisa investiga como os juízes do Tribunal de Justiça da Bahia constroem a representação da reforma do Judiciário no contexto brasileiro. A abordagem metodológica foi operacionalizada por meio da teoria das representações sociais e da análise de conteúdo. Na pesquisa emergiram quatro dimensões, a partir da análise de palavras evocadas e dos textos explicativos, que estão relacionadas a: reforma gerencial, impactos no judiciário, impactos para cidadão, legislação. Os achados foram comparados com outros estudos com foco nos servidores. O confronto revelou que, a partir do ponto de vista dos servidores, os aspectos gerenciais não obtiveram destaque, mas a partir do ponto de vista dos magistrados de primeira instância esta é uma categoria das mais importantes. Por fim, os pesquisadores apresentam considerações relacionadas à estratégia do CNJ e às políticas públicas.
The prognosis of type III biliary atresia with a hilar cyst on ultrasonography might not be better than that without
Authors: Shan Quan-yuan , Liu Bao-xian , Zhong Zhi-hai , Chen Hua-dong , Guo Yu , Xie Xiao-yan , Zhou Wen-ying , Jiang Hong , Zhou Lu-yao
Published: July 2019

Background

Biliary atresia (BA) with a hilar cyst is an uncommon variant of BA that may be misunderstood to have a relatively favorable prognosis.

Methods

A single-center retrospective review of patients that matched BA with a hilar cyst (n=27) with BA without a cyst (n=27) over a 5-years period was done. All patients were diagnosed as type III BA by histologic examination and cholangiograms.

Results

There were no significant intergroup differences between baseline characteristics and outcomes after Kasai portoenterostomy surgery in two groups. The Kaplan–Meier survival curves showed no significant difference in cumulative native liver survival rate of the two groups (p = 0.584). Of the 27 BA patients with a hilar cyst, 8 were showed the cyst communicated with the gallbladder on cholangiograms, and Kaplan-Meier survival curves indicated that the cumulative native liver survival rate was significantly shorter (P=0.045) in them than those who the cyst was not communicated with the gallbladder.

Conclusions

Type III BA with a hilar cyst had no better prognosis compared with Type III BA without a cyst. A cyst communicated with the gallbladder may be associated with a poor eventual outcome for Type III BA with a hilar cyst.
SETTLEMENT OF A DISPUTE WITH THE PARTICIPATION OF A JUDGE
Authors: Ostafiichuk Liudmyla
Published: July 2019

This research is devoted to the "settlement of a dispute with the participation of a judge" institute, which at the end of 2017 was introduced into the administrative, economic and civil processes of Ukraine. During the preparatory proceedings the legislator has provided for the plaintiff and the defendant the opportunity to apply the procedure of peaceful settlement of a dispute with a judge. Of course, for the short time of existence, settlement of a dispute with a judge does not have the proper application in judicial practice. This is due to caution of the subjects of its application, and so the uncertainty and sometimes incomprehensibility purpose of this procedure. There are many subjective and objective factors. But the key is the Ukrainian’s perception of court, mainly as a punitiver, than a state body that protects human right and inability to conduct constructive negotiations and agreement. Despite these obstacles, it should be done as evidenced although rare positive jurisprudence [1]. The main focus of the research of the institute of dispute settlement involving judges should be the unification of the provisions relating to procedures foundations (principles, the beginning and the end, the order and timing of, etc.). Thanks to the practical application, the order of the procedure will be improved. But there are issues that require theoretical development. Based on the available papers of scientists and practitioners, items in this article will attempt to reveal the concept of settlement of a dispute with a judge: opportunities and risks.
The complete guide to ADHD: nature, diagnosis, and treatment
Authors: Bölte Sven
Published: July 2019

I kindly received a copy of this new textbook from the authors some months ago, and now finally found the time to study it in more detail. Authors Katerina Maniadaki and Efthymios Kakouros are Professors of Developmental Psychopathology at the University of West Attica, and summarize here 25 years of clinical experience of working for children and adolescents with ADHD and relatives. Still the guide is also richly and excellently taking into account the perspective on ADHD in adulthood. The cover and foreword of the guide tells that it has already been endorsed by several recognized authorities in the field, such as Edmund Sonuga-Barke, Russell A. Barkley, Rosemary Tannock, and others which increased both my expectancies and excitement when starting to read. To make a long story short, I can sincerely recommend it to Scandinavian clinicians and researchers in the field.
INTEGRASI PENDIDIKAN, PENELITIAN, & PELAYANAN YANG BERKUALITAS DALAM ACADEMIC HEALTH SYSTEM
Authors: Pinzon Rizaldy Taslim , Merry Maria Silvia
Published: July 2019

Pelayanan kesehatan di era ini mengalami perubahan sesuai dengan

pengaruh situasi global, kemajuan pesat di bidang informasi dan teknologi, serta

tingginya mobilitas penduduk dunia. Hal tersebut menyebabkan pelayanan

kesehatan juga terdampak dengan menghadapi berbagai tantangan, yaitu: 1) pola

penyakit yang berubah, 2) perubahan proporsi populasi dan demografi, 3)

disparitas pelayanan kesehatan dan tuntutan masyarakat. Perubahan sistem

pelayanan kesehatan di Indonesia sejak tahun 2014 dengan diberlakukannya

Jaminan Kesehatan Nasional (JKN) juga turut berandil besar dalam perubahan

pola pemberian pelayanan kesehatan yang cukup bermakna.
Anti-corruption Strategies for Balanced Development
Authors: Adeniran Adetayo Olaniyi
Published: July 2019

This paper synthesizes the assessment of anti-corruption strategies adopted by previous administrations in Nigeria, and the effectiveness of Economic and Financial Crimes Commission (EFCC). Factors militating against the effectiveness of EFCC were identified, and solutions proffered. Corruption in education was also noted. The administration of some heads of state before the establishment of EFCC were discovered to fuel corruption, while some administrations proved to have adopted Gandhian approach to fight corruption; they recorded success but were not sustained because their efforts were found to have been frustrated by their succeeding administrations. The results of the frustrations lead to the establishment of EFCC which is an institution to tackle corruption during democracy. Finally, it was revealed that the achievement of EFCC’s mandates is low. Towards anti-corruption strategies and the effectiveness of EFCC, recommendations were suggested. It is believed that if the recommendations were fully implemented, balanced development is inevitable.
An Overview on the Public Relations Strategic Management in Public Sector Organizations
Authors: Sidiq Darmawan , Harahap Rudy M
Published: July 2019

Public relations are an important aspect that must be considered by public sector organizations to achieve its objectives. Strategic management is a valuable tool to aid public sector organizations in developing its public communication programs regarding the public relations. This paper attempts to explore the basic concepts that is important regarding the issue through literature review of several previous studies on public relations strategic management in public sector organizations. From these literature, this paper concludes that in order to achieve its public relations objectives, public sector organizations will have to: identify the groups that make up the public, understand the positioning of the organizations as well as the public groups; choose the best public relations strategy; and formulate the tailored messages to be communicated to each public groups according to the strategy chosen by the organization.
The Impacts of Continuance Commitment to Job Performance
Authors: Kasogela Optatus K
Published: July 2019

Continuance commitment of employee and job performance are inevitably linked to each other, and it is well known that employee continuance commitment is affected by intrinsic motivation of individuals. This study aimed to assess the impacts of continuance commitment to job performance in developing economies like Tanzania. People in developing economies have low commitment due to internal factor such as a desire for earning high size of payment. I focused on the determination of continuance commitment impacts on job performance from a sample of 116 public and private sector employees of industrial and government corporations. In multiple linear regression analysis on the impacts of continuance commitment and job performance two predictors; social capital and human capital show the significant relationship between two variables while the size of payment shows a very little contribution to job performance.
Functional Characterisation of a Calmodulin-Binding Receptor-Like Cytoplasmic Kinase (GmCBRLCK1) in Glycine max (L.) Merr. using Bioinformatic Tools
Authors: Bobo Enetia Disberia , Munosiyei Pias , Jinga Percy , Zingoni Emmanuel
Published: July 2019

An understanding of the function of signaling genes/proteins in soybean is vital for comprehending plant growth and development. The objective of this study was to functionally characterize a calmodulin-binding receptor-like cytoplasmic kinase gene (Glyma.13G161700) from Glycine max. Bioinformatic analyses were performed for the characterization. Expression profile of GmCBRLCK1 gene in soybean tissue was assessed using Genevisible. Functional genomic analysis for gene expression regulation and co-expression analysis was evaluated using micro array data from Affymetrix Soybean Genome Array platform in GENEVESTIGATOR v3. Gene ontology functional predictions were determined through FFPred 2.0. The results showed that the calmodulin-binding receptor-like cytoplasmic kinase gene is predominantly expressed in the pericycle and syncytium in root seedlings and in the palisade cells of the legume. The gene was shown to be highly upregulated in response to root exposure to Phytophthora sojae, Heterodera glycines and aluminium stress. Co-expressed genes during the legume development showed Pearson’s correlation co-efficient of 1 to Glyma.13G161700. Gene ontology predictions confirmed the signaling and metabolic functions of the kinase gene and its primary locations are the membrane and endomembrane system of G. max. The study therefore suggests that Glycine max calmodulin-binding receptor-like cytoplasmic kinase (GmCBRLCK1) is involved in receptor signaling pathways to enhance seedling tolerance to root infection by P. sojae, H. glycines, and to aluminium stress. The kinase gene is also involved in regulation of metabolic processes that aid in growth and development of soybean seedling.
The notary’s responsibility toward the authenticity of credit bank guarantees in Indonesia
Authors: Andy Hartanto Joseph , Sulaksono Sulaksono
Published: July 2019

This paper provides an overview of the law and a statute regarding the notary’s responsibility toward the authenticity of credit bank guarantee in Indonesia, and compares them with those of other nations, including the United States of America and Germany. This study uses a combination of primary and secondary sources to assess the current state of the notary responsibility situation regarding banks and the financial lending world in general and employs a normative or doctrinal approach that views laws as a system of norms. The functions of notaries in Indonesia are different from those performed by notaries in some other countries, the notaries play different roles and participate in many formalities: a) a function in credit banking bind guarantees that not only allow people to feel comfortable with their transactions, but also increase public trust in the whole banking system; b) personal and material guarantees. In transacting any deeds, including credit bank guarantees, the notary is responsible for the authenticity of the physical, formal and material aspects of the deed; c) the binding of collateral objects; d) a function in binding banking credit guarantees. Also, notaries have the risk of illegal jurisdiction of a banking credit guarantee deed. Notaries in Indonesia have different roles compared to other countries, including the United States of America and Germany. Notaries play an important role in increasing economic growth, especially through their responsibility for the authenticity of credit bank guarantees activity and they add to the overall body of knowledge.
Women’s role in organizations and public opinion
Authors: Tsiklashvili Natela , Turmanidze Tamila , Beridze Tamar
Published: July 2019

Georgia still faces urgent problems of women employment, level of raising women’s qualification and restricted career opportunities. It impacts economic indicators as well. Proceeding from the topicality of the problem, the goal of the research is to study the attitude towards the role of women in present-day organizations, applying complex methods of information gathering and analysis, quantitative methods of research.The conducted research and analysis of outcomes led to the conclusion that, despite progressive changes in the state and society attitude towards gender equality, still there are many controversial issues. It is a typical situation for many countries. Although women represent half of the able-bodied population worldwide, their portion in GDP is only 37%. It indicates that full utilization of women’s potential is not or cannot be accomplished. It is significant to identify the hindering reasons.The research results show that the hindering factors of women’s self-realization and career advancement in Georgia are: 61% – family, 27% – education/less qualification, 25% – stereotypes, 34% – inflexible work schedule and inconvenient conditions. The authors think that, in order for the state to make maximum utilization of women’s resources as a valuable economic and political asset, it is necessary that government work out efficient ways to create convenient conditions for women. At the same time, all companies must have labor management strategy that can bring success if all aspects of women’s work in each component will be actively applied.
Aprendizaje informal y desarrollo profesional: análisis de las ecologías de aprendizaje del profesorado de educación infantil
Authors: González-Sanmamed Mercedes , Souto-Seijo Alba , González Iria , Estévez Iris
Published: July 2019

La tecnología juega un importante papel en la configuración de las ecologías de aprendizaje, puesto que ha propiciado la generación de nuevos entornos de formación. Tomando como referencia las oportunidades de desarrollo profesional que ofrece la sociedad en red, el presente estudio tiene como objetivo analizar las actividades de tipo informal, con o sin base tecnológica, que realizan los docentes de la etapa de Educación Infantil (EI) para mantenerse actualizados. En esta investigación, de corte cuantitativo, se ha empleado un cuestionario de elaboración propia para la recogida de información. La muestra estuvo compuesta por 52 docentes de EI. A pesar de las múltiples posibilidades formativas que nos brindan las Tecnologías de la Información y la Comunicación, los resultados evidencian que el profesorado recurre en mayor medida a actividades sin base tecnológica que a actividades con base tecnológica en sus aprendizajes informales vinculados con la mejora de su actividad docente.
Local geomagnetic field fluctuations relationship with mental and physical health among adults in Lithuania
Authors: Joffė-Luinienė Roza , Vainoras Alfonsas , Šmigelskas Kastytis
Published: July 2019

The study examined the relationship between local geomagnetic field fluctuations and physical and mental health among young adults in Lithuania. 264 participants were recruited for a two-week period study, during which they had to fill-in paper questionnaires, consisting of a 12-Item Short Form Survey (SF-12), assessing physical and mental health, 4 questions about physical vitality, emotional vitality, social wellbeing and overall wellbeing, and questions regarding sociodemographic data. The results of the study revealed that possible influence of geomagnetic field fluctuations appear not simultaneously with the changes in human health status, but with a 12-hour lag. This relationship was found to be weak but significant, however, only with mental health.
Interactions between Earth’s local magnetic field and cardiovascular system parameters of women, performing sedentary work, during their workweek
Authors: Nasutavičienė Deimantė , Grygieńć Sylwia , Poškaitis Vytautas , Tamulionytė Vilma , McCraty Rollin , Vainoras Alfonsas
Published: July 2019

The aim of this research was to identify the interactions between Earth's local time varying magnetic field and cardiovascular system parameters in women, performing sedentary work, during their workweek. The tasks of research: 1. To examine the relationship between the Earth's local magnetic field and the electrocardiographic parameters of women performing sedentary work, during the workweek. 2. To examine the relationship between the Earth's local magnetic field and arterial blood pressure of women performing sedentary work, during the work week. The methods used: electrocardiographic monitoring and arterial blood pressure measurement. The Earth's magnetic field data was obtained using a magnetometer located in the town of Baisogala. Every female was assessed four times: before and after work on Monday, before and after work on Friday of the same week. Participants of the research: the research group consisted of 21 females who perform sedentary work (average age ± SD – 50.1±9.5 years). Conclusions of the research: 1. The most significant correlations between local GMF and ECG and arterial blood pressure parameters were found with the low frequency field, the most often in SDelta [0-3.5] Hz and STheta [3.5-7] Hz bands. 2. The correlations between ECG parameters (RR, JT and QRS intervals ant ST amplitude) during the workweek changed from negative to positive, which appears to be associated with fatigue influence on person sensitivity to local GMF. 3. Systolic and diastolic arterial blood pressure changed in different ways. The correlations between local GMF and diastolic arterial blood pressure were especially pronounced. 4. All ECG and arterial blood pressure parameters showed great variability in correlation with local GMF. It can be associated with changing human sensitivity to GMF due to increasing fatigue.
Inference of the optimal probability distribution model for geotechnical parameters by using Weibull and NID distributions
Authors: Gong Fengqiang , Wang Tiancheng , Wang Shanyong
Published: July 2019

To obtain the optimal probability distribution models of geotechnical parameters, the goodness of fit of the normal information diffusion (NID) distribution and Weibull distribution were investigated and compared for actual engineering samples and Monte Carlo (MC) simulated samples. Two datasets from actual engineering parameters (the strength of a rock mass and the average wind speed) were used to test the fitting abilities of these two distributions. The results show that the parameters of the NID distribution are easily estimated, the Kolmogorov-Smirnov (K-S) test results of the NID distribution are smaller than those of the Weibull distribution, and the NID distribution curves can perfectly reflect the stochastic volatility of geotechnical parameters with small sample sizes. The sample size effects on the fitting accuracy of the NID distribution and Weibull distribution were also investigated in this paper. Eight simulated samples with different sample sizes, namely, 15, 20, 30, 50, 100, 200, 500, and 1000, were produced by using the MC method based on two known Weibull distributions. The results show that with an increase in the sample size, the K-S test results of the NID distribution gradually decrease and tend to converge, while the chi-square test results of the NID distribution remain low and are always lower than those of the Weibull distribution. The cumulative probability values of the NID distribution are larger than those of the Weibull distribution and are always equal to 1.0000. Finally, the comparison of the fitting accuracy between the NID distribution and normalized Weibull distribution was also analyzed.
Mechanical deformation mechanism and verification of sections at junctions of light and dark tunnel in a mountain area
Authors: Lv Jianbing , Wu Yimin , Li Xulong , Wang Fei , Zou Zhengming , Yin Yingmei
Published: July 2019

Projects involving junctions of light and dark tunnel in mountainous areas are complex engineering problems that combine tunnel structure, slope rock-soil mass and protection projects. Such junctions suffer from a complex and changeable load. The stress and deformation of the junction varies under different conditions. Thus, it is a major source of inconvenience for construction and monitoring operations. In this paper, according to the load conditions at a junction of light and dark tunnel, we divide the junction hole into thrust, compression, and combined thrust-compression types. Three types of structures were simulated by numerical analysis, and we explored the structural deformation and stress of these types of tunnel under different condition. Thus, in any construction process, the mechanical deformation mechanism and the weak point in the structure should be worked out. Based on the weak parts, some monitoring points were installed, and four fields for monitoring were chosen. The monitoring results show that the actual deformation, stress and structural failure location are basically consistent with the numerical simulation results. The deformation mechanism of light and dark tunnel junction obtained can provide the basis for selecting the treatment measures and controlling the structural deformation. Furthermore, the results can also be used as a reference for similar engineering design, construction and site monitoring projects.
The fatigue properties and damage of the corroded steel bars under the constant-amplitude fatigue load
Authors: Ouyang Xiang Sen , Luo Xiao Yong , Wang Jun
Published: July 2019

We obtained the corroded steel bars by conducting electrically-accelerated corrosion tests. Then, to investigate the effects of the corrosion ratio and the stress amplitude on the fatigue life, and to further study the damage evolution law under corrosion and fatigue loads, we performed axial fatigue tests on 13 steel bars with various corrosion ratios. The laboratory results show that the fatigue life is logarithmical linear to the stress amplitude, and the increase in corrosion ratio leads to the accelerated decrease in the fatigue life. In addition, the increase in stress amplitude can accelerate the fatigue damage, and further decreases the fatigue life. With the laboratory data, we further established a model to predict the fatigue life of the steel bars with various corrosion ratios. The evolution of the residual strains includes the relatively rapid increase, stable increase and rapid increase stages. Moreover, we developed an evolution equation for the residual strain, and this equation can properly describe the laboratory results. Furthermore, considering the fatigue damage, we proposed a constitutive model to describe the stress-strain curve of the corroded steel bar under static tension. The comparison shows that the calculated stress curves agree well with the laboratory curves.
A slope stability analysis for southern Wuchangping tin mine
Authors: Zou Ping , Zhao Ximo , Meng Zhonghua , Li Aibing , Liu Zhengyu , Hu Wanjie
Published: July 2019

This paper aims to provide a slope stability analysis for the southern part of Wuchangping mine. The methods of limit equilibrium analysis, finite element simulation and neural network were used to study the stability of the southern slope. The preventive measures, such as bolt reinforcement, drainage system and so on were carried out. The results are as follows. The slope angle for the lower slope of moderately weathered granite and slightly weathered granite is recommended as 60°-65°. The slope angle for the layer where locates near the ground of full weathered granite is recommended as 30°-32°. When the thickness of fully weathered granite layer is less than 10 meters, the slope is still stable enough. The angle is recommended as 38°-40°. The results of evaluation and calculation obtained by the neural network are not different from those of the limit equilibrium method and finite element simulation. The neural network can accurately predict slope stability. The conclusions can provide useful reference for similar mines.
Acceleration and displacement dynamic response laws of a shallow-buried bifurcated tunnel
Authors: Wang Feifei , Ren Qingyang , Zou Ping , Niu Jiayong , Meng Zhonghua , Li Aibing , Liu Zhengyu , Hu Wanjie , Ma Zeng
Published: July 2019

In order to obtain the seismic dynamic laws of the acceleration and displacement of a shallow-buried bifurcated tunnel, the analysis of the numerical simulation was carried out by MIDAS-GTS/NX software. The results of the numerical simulation were verified by a shaking table model test. The results show that: (1) the numerical simulation and shaking table test coincide with each other in terms of variation law and peak value. The results of the numerical simulation are credible. (2) For different tunnel cross-section, the response of acceleration and displacement are significant difference. (3) The seismic response of the small distance tunnel (Section 6) is intense. The seismic response laws of the small distance tunnel are significant difference from other type tunnels. The seismic response of the measuring point at the middle rock column is intense. (4) Along the axis of the tunnel, the displacement of the tunnel firstly increases and then decreases. The displacement of the measuring point at the middle rock column is intense, which is in accordance with the law of the acceleration response. The seismic response laws of the tunnel are significantly affected by the middle rock column. The section structure size has a significant effect on the dynamic response of the tunnel.
A novel measurement method of toe debris thickness for bored piles based on one-dimensional wave theory
Authors: Xu Zhijun , Liu Jun , Yuan Fang
Published: July 2019

The existence of toe debris at the bottom of the bored pile will reduce the bearing capacity of the pile. This paper develops a novel equipment to measure the thickness of toe debris for bored piles. The equipment consists of a test rod, test hammer, velocimeter, transmission cable and data receiving and processing device. Based on the one-dimensional wave theory, the mechanism of the sudden change of the velocity time curve received at the top of the test rod is analyzed, which is caused by the change of the wave impedance at the interface between the test rod and the sediment, thus the feasibility of the equipment is verified in theory. Finally, numerical simulations of toe debris under various working conditions are carried out to verify the reliability of the equipment. The results show that the test curves are sensitive to the materials of test rod using proposed equipment when the thickness of toe debris is equal or greater than 50 cm, and the test values are all larger than actual values, which meet the requirement of relevant specifications. The test results are more accuracy when the thickness of toe debris is less than 50 cm. when the excited force is large, not only the sudden change is easy to be discriminated, but also the test accuracy can be assured. The remainder toe debris meet the requirement of relevant specifications after clearing pile hole according the proposed method. And the device is not affected by the properties of the sediment material, which indicates that the proposed equipment can perform well to test the thickness of toe debris.
Shaking table test and numerical simulation for acceleration response laws of shallow-buried biased double-arch tunnel
Authors: Liu Chan , Yang Hui , Jiang Xueliang , Shi Hongtao
Published: July 2019

In order to reveal the acceleration response law of shallow-buried bias double-arch tunnel under earthquake. The acceleration response of the shallow-buried biased double-arch tunnel under the action of Wenchuan wave was studied by the combination of shaking table test and numerical simulation. The effects of non-bias and bias on the acceleration response of shallow-buried biased double-arch tunnels were discussed. Research indicates: (1) Horizontal acceleration amplification factor of the left-hole (non-biased side) for the shallow-buried biased double-arch tunnel is V-shaped, and the right-hole (bias side) is ∩-shaped. The vertical acceleration amplification factor of the left-hole tends to increase continuously, and the right-hole shows a trend of decreasing first and then increasing continuously. (2) In the state of both the bias and the non-biased tunnel, the acceleration response in the vertical direction is stronger than that in the horizontal direction. (3) In the two states of bias and non-bias, the difference between the horizontal and vertical acceleration amplification factors of the double-arch tunnel is larger. It indicates that the excitation direction of the seismic wave has a great influence on the acceleration response of the double-arch tunnel. (4) Relatively biased double-arch tunnels, the regularity of non-biased double-arch tunnels is better, indicating that the bias voltage has a greater impact on double-arch tunnels.
Experimental study on dynamic deformation properties of muck soil under low frequency cyclic loading
Authors: Liu Yongjian , Luo Qiyang , Yang Xin , Yuan Bingxiang , Luo Lan , Lai Mingyang
Published: July 2019

A series of dynamic triaxial tests were performed to investigate the dynamic deformation properties of the muck soil, in the Pearl River Delta region of Shenzhen, China, under different consolidation ratios, loading frequencies and cyclic stress with SPAX-2000 triaxial testing system. The results showed that the initial stress-strain hysteresis curve of the muck soil under the low-frequency cyclic loading developed rapidly and the curve shape changes from sparse to tight and to slightly sparse. The cumulative plastic strain of muck soil increased nonlinearly with the dynamic stress amplitude, and there was a critical dynamic stress. As the dynamic stress amplitude reached its critical value, the strain increased sharply and the soil microstructure was destroyed. There was a frequency threshold between 0.25 Hz and 0.5 Hz, and the cumulative plastic strain development mode was from stable model to over-destructive model. The stiffness of the muck decreased gradually, and the plastic deformation increased as the number of cycles increased. Therefore, the lower the loading frequency developed, the greater the plastic deformation would be. The dynamic elastic modulus decreased as the plastic deformation increased, while the dynamic elastic modulus increased as the consolidation stress increased. Moreover, the empirical formulas of dynamic elastic modulus and plastic strain index were established with the consolidation stress ratio as the parameter, and the validity was verified by experimental data.
Estimation of Coating Materials Contribution to the TVOCs Emissions of Wood Flooring in Indoor Environment
Authors: Mahmoud Aliaa Abass
Published: July 2019

Based on the increasing concern about the exposure to volatile organic compounds () from indoor finishing materials, industrial companies are called to meet the growing demand for more sustainable products. Recently, most designers and consumers have more environmental considerations while selecting the finishing materials. These considerations are related to thecontent of the finishing material itself regardless of its coating layers. Nowadays, interior wood coatings are commonly applied to large surfaces (ceilings, walls, floors) and many types of furnishing, leading to a high loading factor (surface-to-volume ratio). These coatings might contribute significantly to theemissions due to repeatedly and periodically use during maintenance, remodeling, and renovation of interior spaces.The aim of this study is to estimate the wood coating materials contribution to theemissions of wood product in the indoor environment to shed light on the importance of comprehensive analysis of wood material with all treatment coatings. So, a small interior space with controlled temperature, relative humidity, and air exchange rate was simulated using IA-Quest program to investigate the influence of three wood coating materials; stain, wax, and varnish which were applied to an area of natural hardwood Oak floor. Theemission data resulted from the different coated wood floor was compared withemissions caused by the natural wood floor to find out the coating material contribution inemissions of a wood flooring material.
Natural Urban Heritage and Preservation Policies: the Case of Kyoto’s Waterways
Authors: Santini Tyana , Taji Takahiro
Published: July 2019

The value of natural heritage within urban areas is nowadays gaining recognition, but there are still no clear reference frameworks to confront the complexities of their management. In this discussion, the challenges of the association of historical preservation and urban nature are explored through the analysis of the management of Kyoto’s waterways. The conflicts caused by the rapid modernization of Japan at the end of 19th century find in Kyoto a remarkable expression in the tensions between renovation and conservation, providing a fertile frame for discussion. Relevant achievements and shortcomings of Kyoto´s experience are here analyzed, considering how the preservation of historic landscapes affected the protection of urban rivers, the relationship between sustainability and heritage, and the new environmentally aware approaches to river improvement.
The inhibition of crystal growth of gypsum and barite scales in industrial water systems using green antiscalant
Authors: Abd-El-Khalek D. E. , Abd-El-Nabey B. A. , Abdel-kawi Mervat A. , Ebrahim Sh. , Ramadan S. R.
Published: July 2019

Mineral scale is a major flow assurance problem in industrial water systems. The antiscale properties of sunflower (Helianthus annuus) seed extract for CaSO4 and BaSO4 scales were investigated using NACE and conductivity tests, respectively. Comparative studies between the extract and 1-hydroxyethane-1,1-diphosphonic acid (HEDP), as commercial antiscalants, were done. The results revealed that the inhibition of CaSO4 scales using sunflower seed extract reached 100%, while HEDP achieved a maximum inhibition of 88%. Moreover, the maximum inhibition of BaSO4 scale in the presence of the extract was 84% compared with 86% in the presence of HEDP. Also microscopic examination showed that both inhibitors modified CaSO4 and BaSO4 crystals.
Chemical Synthesis of Acyclic Nucleoside Phosphonate Analogs Linked with Cyclic Systems between the Phosphonate and the Base Moieties
Authors: Shen Guang Huan , Hong Joon Hee
Published: July 2019

The syntheses of acyclic nucleoside phosphonate (ANP) analogs linked with cyclic systems
are described in the present review. The purpose of the review is to report the methodology of
ANP analogs and to give an idea on the synthesis of a therapeutic structural feature of such analogs.
The cyclopropane systems were mainly prepared by diazomethane cyclopropanation catalyzed by
Pd(OAc)2, intramolecular alkylation, Kulinkovich cyclopropanation, and use of difluorocyclopropane,
and so forth. The preparation of methylenecyclopropane system was made by diazoacetate
cyclopropanation catalyzed by Rhodium followed by addition-elimination reactions. For the preparation
of a variety of tethered 1,2,3-triazole systems, 1,3-dipolar cycloaddition between azidealkylphosphonates
and propargylated nucleobases was mainly applied. The formation of various
phosphonate moieties was achieved via phosphonylation of alkoxide, cross-coupling between
BrZnCF2P (O)(OEt)2 with iodoalkens catalyzed by CuBr, Michaelis-Arbuzov reaction with phosphite,
and Rh(II)-catalyzed O-H insertion, and so forth.
Recent Technological Advances in the Mass Spectrometry-based Nanomedicine Studies: An Insight from Nanoproteomics
Authors: Tang Jing , Wang Yunxia , Li Yi , Zhang Yang , Zhang Runyuan , Xiao Ziyu , Luo Yongchao , Guo Xueying , Tao Lin , Lou Yan , Xue Weiwei , Zhu Feng
Published: July 2019

Nanoscience becomes one of the most cutting-edge research directions in recent years since it is gradually matured from basic to applied science. Nanoparticles (NPs) and nanomaterials (NMs) play important roles in various aspects of biomedicine science, and their influences on the environment have caused a whole range of uncertainties which require extensive attention. Due to the quantitative and dynamic information provided for human proteome, mass spectrometry (MS)-based quantitative proteomic technique has been a powerful tool for nanomedicine study. In this article, recent trends of progress and development in the nanomedicine of proteomics were discussed from quantification techniques and publicly available resources or tools. First, a variety of popular protein quantification techniques including labeling and label-free strategies applied to nanomedicine studies are overviewed and systematically discussed. Then, numerous protein profiling tools for data processing and postbiological statistical analysis and publicly available data repositories for providing enrichment MS raw data information sources are also discussed.