bluuebunny/crossref_metadata_2025 huggingface dataset:
Vegetable Gardening and Marketing in Kirtipur Area of Kathmandu
Authors: Rai Dhyanendra Bahadur
Published: April 2018

Vegetable gardening is one of the important branches of vegetable farming in which vegetables are produced for the purpose of self-consumption and local market. In these days, the demand of fresh vegetable is increasing day by day because of rapid population growth, urbanization and growing awareness towards green vegetable in the kitchen. Hence, in the urban fringes, vegetable gardening has appeared as one of the productive enterprises for cash generation as well as self-employment. This study is completely based on primary data collected in the field by household questionnaire survey, key informants interview as well as focus group discussion (FGD). Finding clearly indicates that the cultivation of vegetable around Kirtipur area is gradually increasing and also able to fulfill few demands of vegetables in the local market of Kirtipur. This area has emerged as one of the vegetable growing pocket area among the outlying areas of Kirtipur Municipality. Nepalese Journal of Development and Rural StudiesVol. 14 (Joint issue) (1&2), 2017, Page: 28-35
The Landless Sharecroppers of Dumraha Village: A Case Study on Food Sufficiency among Tharu Community
Authors: Chaudhari Lalit
Published: April 2018

This research analyzed the situation of sharecroppers and their food sufficiency level in forty Tharu community households in Dumraha village of Sunsari. Household interviews, focus group discussions, key informants survey and observations are led to fulfill the research objective. Among ninety-one landless sharecroppers forty households were selected for the study applying the equation. The landlessness Tharu people are compelled to do agriculture or non-agriculture labor besides farming. The Tharu communities are engaged as sharecropper to face the challenges of food self-sufficiency. Some of the sharecroppers are found to be the previous owner of the land. The practice of sharecropping is fully based on mutual relationship between landlord and sharecroppers, where they agree in sharing the output equally. Sharecropping has helped the landless Tharus to be food self sufficient. Nepalese Journal of Development and Rural StudiesVol. 14 (Joint issue) (1&2), 2017, Page: 36-42
Everyday Lives of LGBTI in Kathmandu Valley: A Narrative Inquiry
Authors: Bhatta Megh Vilas
Published: April 2018

There is an increasing recognition of political and socio-economic right and identification of the LGBTI throughout the world. Hereby, I soaked into lived experiences of LGBTI people and interpreted those experiences for better understanding of their daily life activities, the gap between their individual identities and social identities, prevailing exclusionary provisions and need of their social inclusion in term of gender identities and social development. The study also relates to the multiple realities of the world view of LGBTI investigated through interpretive paradigms and narrative inquiry as methodology which focuses on critical life events depicted through participants’ stories, exploring their holistic views and holds valuable potential for researchers in a broad range of socio-cultural and economic structures. The research questions; how do LGBTI perform everyday life activities, how have they been appraising their identity and why social exclusionary practices have been affecting the lives of LGBTI in the development process of Nepal have been instrumental to materialize them. Nepalese Journal of Development and Rural StudiesVol. 14 (Joint issue) (1&2), 2017, Page: 63-73
Technological Intervention in Agriculture Development
Authors: Pasa Rajan Binayek
Published: April 2018

Agriculture sector is the single largest employer in the world. Even in Nepal, agriculture sector provides net employment to 60 percent people. In this contexts, this study highlighted importance of technological intervention in agriculture development. However, focus was given to assess socio-economic situations of the farmers and impact of modern technological interventions. In so doing, the survey was conducted in Lele Village of Godavari Municipality. The respondents were randomly selected 152 sample households using modern/traditional agriculture technologies. The necessary primary data collected through households’ survey questionnaires, observation and informal communications whereas secondary data generated from published/unpublished books, journals, inter/national reports and local level profiles. The study found that modern technological intervention has been fostering commercial farming activities in Lele village and increased family income, creating self-employment and generating rural economy in particular and supporting to the rural development process in general. Further, local development stakeholders need to provide technical/financial supports to the farmers for mounting intervention of modern agriculture technology in Lele village. The finding of the study has possibility to replicate in similar situation throughout the country.Nepalese Journal of Development and Rural StudiesVol. 14 (Joint issue) (1&2), 2017, Page: 86-97
The Sheltering of Unwanted Cattle, Experiences in India and Implications for Cattle Industries Elsewhere
Authors: Kennedy Uttara , Sharma Arvind , Phillips Clive J. C.
Published: April 2018

Reverence for the cow has been a centerpiece of Hindu culture, the roots of which can be traced back to the Indus Valley Civilization around 3000 BCE. Historical and anthropological literature demonstrates how over the millennia the animal’s status as a religious symbol steadily increased and the concept of its sanctity grew in complexity, becoming deeply entrenched and assuming a core identity of the religion. The cow has also been used as a symbol of political opposition to external influences and invading powers. Nowhere else in the world has an animal maintained such divine significance into modern day. This literature review explores the interplay of complex cultural, religious, social and political factors that led to the phenomenon of the sacred cow, a ban on its slaughter and the advent of the modern gaushala. The review also discusses the moral implications of preservation of animal life past their commercial use, the impact on their welfare and need for objectively assessing whether there is a place for such strategies in other animal industries worldwide.
Experimental Study on Dynamic Effects of a Long-span Railway Continuous Beam Bridge
Authors: Gou Hongye , Zhou Wen , Bao Yi , Li Xiaobin , Pu Qianhui
Published: April 2018

Studies on impact effects of trains on the railway bridge are important for ensuring the reliability of bridge and the safety of train operation. This paper presents an experimental study on the dynamic effects of moving trains on a long-span railway continuous beam bridge. The dynamic responses of the bridge under the moving trains were measured through in-situ testing and finite element analysis. The influences of the moving trains and track irregularity are considered. The investigated influencing factors include the weight and speed of the train and the irregularity of the track on the bridge. The results indicate that the train’s speed does not have obvious influence on the impact factor, while train’s weight and track irregularity have notable effects on the impact factor. But from the overall development law, with the increase of train speed, the impact factor increases. The impact factors obtained in this study are larger than the values provided by the China bridge design codes, which indicates that the bridge code underestimates the impact effect of the train on the bridge. The design value of the impact factor should be properly improved in the bridge design.
Strained Silicon Single Nanowire Gate-All-Around TFETs with Optimized Tunneling Junctions
Authors: Narimani Keyvan , Trellenkamp Stefan , Tiedemann Andreas , Mantl Siegfried , Zhao Qing-Tai
Published: April 2018

In this work, we demonstrate a strained Si single nanowire tunnel field effect transistor (TFET) with gate-all-around (GAA) structure yielding Ion-current of 15 μA/μm at the supply voltage of Vdd = 0.5V with linear onset at low drain voltages. The subthreshold swing (SS) at room temperature shows an average of 76 mV/dec over 4 orders of drain current Id from 5 × 10−6 to 5 × 10−2 µA/µm. Optimized devices also show excellent current saturation, an important feature for analog performance.
Process and Formulation Strategies to Improve Adhesion of Nanoparticulate Coatings on Stainless Steel
Authors: Hesselbach Jutta , Böttcher Ann-Christin , Kampen Ingo , Garnweitner Georg , Schilde Carsten , Kwade Arno
Published: April 2018

The use of ceramic nanoparticles in coatings can significantly improve their mechanical properties such as hardness, adhesion to substrate, and scratch and abrasion resistance. A successful enhancement of these properties depends strongly on the coating formulation used, and the subsequent structure formed during coating. The aim of the present work was to enhance the adhesion between nanoparticulate coatings and stainless-steel substrates. A covalent particle structure was formed and better mechanical properties were achieved by modifying alumina nanoparticles, as well as substrates, with 3-aminopropyltriethoxysilane and by using a formulation consisting of solvent, modified particles, and bisphenol-A-diglycidylether as cross-linking additive. In addition to the adhesion force needed to remove the coating from the substrate, the type of failure (adhesive or cohesive) was characterized to gain a deeper understanding of the structure formation and to identify interdependencies between process, formulation, and coating structure properties. The modification process and the formulation composition were varied to achieve a detailed conception of the relevant correlations. By relating the results to other structural properties, such as the theoretical porosity and thickness, it was possible to understand the formation of the coating structure in more detail.
Does Student Proactivity Guarantee Positive Academic Results?
Authors: Cansino J. M. , Román Rocío , Expósito Alfonso
Published: April 2018

This paper analyzes the impact of students’ proactivity on academic performance based on a sample from students enrolled in an introductory course of Political Economy at the University of Seville (Spain) in three consecutive courses (2014–2015, 2015–2016 and 2016–2017). Proactivity is measured by several indicators, such as class attendance, case-study oral presentation and its delivery in a foreign language, all of them being non-mandatory activities for students who have participated in the experiment. Specifically, this study aims to assess the impact of a student’s proactivity on two academic outcomes: (i) to pass or fail the exam; and (ii) the score obtained. Impact assessment has been performed using a probit and ordered multinomial logit models. The results show that a student’s proactivity measured by class attendance and case-study presentation significantly increases the probability of passing the exam, while the impact of using a foreign language seems to be non-significant. In relation to the score obtained, the proactivity measured through the case presentation raises the probability of obtaining a higher mark more than regular class attendance.
Exoplanets: Past, Present, and Future
Authors: Lee Chien-Hsiu
Published: April 2018

Our understanding of extra-solar planet systems is highly driven by advances in observations in the past decade. Thanks to high precision spectrographs, we are able to reveal unseen companions to stars with the radial velocity method. High precision photometry from the space, especially with the Kepler mission, enables us to detect planets when they transit their stars and dim the stellar light by merely one percent or smaller. Ultra wide-field, high cadence, continuous monitoring of the Galactic bulge from different sites around the southern hemisphere provides us the opportunity to observe microlensing effects caused by planetary systems from the solar neighborhood, all the way to the Milky Way center. The exquisite AO imaging from ground-based large telescopes, coupled with high-contrast coronagraph, captured the photons directly emitted by planets around other stars. In this article, I present a concise review of the extra-solar planet discoveries, discussing the strengths and weaknesses of the major planetary detection methods, providing an overview of our current understanding of planetary formation and evolution given the tremendous observations delivered by various methods, as well as on-going and planned observation endeavors to provide a clear picture of extra-solar planetary systems.
Assessing the Protective Capacity of Aquifers Using Very-Low-Frequency Electromagnetic Survey
Authors: Ohwoghere-Asuma Oghenero , Aweto Kizito Ejiro , Chinyem Felix I. , Nwankwoala Hyacinth O.
Published: April 2018

The protective capacity of aquifers is a prerequisite for groundwater quality in areas prone to contamination from the ground surface. Aquifers without protective layers are more susceptible to contaminations from point and non-point sources. The protective capacity of an aquifer significantly correlates with the thickness of clay and organic materials that mantled it. To assess aquifer protective capacity, electrical conductivity property of saturated clay was determined from filtered imaginary and real components of Very Low-Frequency Electromagnetic (VLF-EM). The filtered real components against distance and current density pseudo-section produced from real components were concomitantly used for interpretation. Clays capping aquifers were delineated from those without capping from low and high values of filtered imaginary and real components and current density pseudo-section. The distribution of clay laterally across the area indicates that aquifers are poorly protected and susceptible to contaminations from a point and non-point sources. The apparent agreement between inferred geology from VLF-EM interpretation, borehole data and resistivity data underscores the efficacy of VLF-EM as an important tool that can be used or combined with other geophysical methods and borehole information/data for assessment of the protective capacity of the aquifer.
Dynamic Geochemistry of Tetraethyl Lead Dust during the 20th Century: Getting the Lead In, Out, and Translational Beyond
Authors: Mielke Howard W.
Published: April 2018

This commentary provides a brief overview of policy decisions that permitted getting tetraethyl lead (TEL) into petrol; global geochemical lead-dust deposition evidence; 1975 catalytic converter requirements; concern about habitability of cities; a personal perspective on legacy lead research that accelerated getting TEL out of petrol; and translational beyond, including New Orleans pre- vs. post-Hurricane Katrina observations about legacy lead interventions that effectively improve urban children’s health outcomes.
Associations between Urban Sprawl and Life Expectancy in the United States
Authors: Hamidi Shima , Ewing Reid , Tatalovich Zaria , Grace James B. , Berrigan David
Published: April 2018

In recent years, the United States has had a relatively poor performance with respect to life expectancy compared to the other developed nations. Urban sprawl is one of the potential causes of the high rate of mortality in the United States. This study investigated cross-sectional associations between sprawl and life expectancy for metropolitan counties in the United States in 2010. In this study, the measure of life expectancy in 2010 came from a recently released dataset of life expectancies by county. This study modeled average life expectancy with a structural equation model that included five mediators: annual vehicle miles traveled (VMT) per household, average body mass index, crime rate, and air quality index as mediators of sprawl, as well as percentage of smokers as a mediator of socioeconomic status. After controlling for sociodemographic characteristics, this study found that life expectancy was significantly higher in compact counties than in sprawling counties. Compactness affects mortality directly, but the causal mechanism is unclear. For example, it may be that sprawling areas have higher traffic speeds and longer emergency response times, lower quality and less accessible health care facilities, or less availability of healthy foods. Compactness affects mortality indirectly through vehicle miles traveled, which is a contributor to traffic fatalities, and through body mass index, which is a contributor to many chronic diseases. This study identified significant direct and indirect associations between urban sprawl and life expectancy. These findings support further research and practice aimed at identifying and implementing changes to urban planning designed to support health and healthy behaviors.
Hemiptera Mitochondrial Control Region: New Sights into the Structural Organization, Phylogenetic Utility, and Roles of Tandem Repetitions of the Noncoding Segment
Authors: Li Kui , Liang Ai-Ping
Published: April 2018

As a major noncoding fragment, the control region (CR) of mtDNA is responsible for the initiation of mitogenome transcription and replication. Several structural features of CR sequences have been reported in many insects. However, comprehensive analyses on the structural organization and phylogenetic utility, as well as the role of tandem replications (TRs) on length variation, high A+T content, and shift of base skew of CR sequences are poorly investigated in hemipteran insects. In this study, we conducted a series of comparative analyses, using 116 samples covering all 11 infraorders of the five currently recognized monophyletic groups in the Hemiptera. Several structural elements (mononucleotide stretches containing conserved sequence blocks (CSBs), TRs, and GA-rich region) were identified in the mitochondrial control region in hemipteran insects, without showing a consistent location. The presence and absence of certain specific structural elements in CR sequences show the various structural organizations of that segment among the five monophyletic groups, which indicates the diversification of the control region’s structural organization in Hemiptera. Among the many groups within Hemiptera, eight monophyletic groups and three consistent phylogenetic trees were recovered, using CSBs datasets by maximum likelihood and Bayesian methods, which suggests the possible utility of CR sequences for phylogenetic reconstruction in certain groups of Hemiptera. Statistical analyses showed that TRs may contribute to the length variation, high AT content, and the shift of base skewing of CR sequences toward high AT content in the Hemiptera. Our findings enrich the knowledge of structural organization, phylogenetic utility, and roles of tandem replication of hemipteran CR, and provide a possible framework for mitochondrial control region analyses in hemimetabolous insects.
Testing for Causality-In-Mean and Variance between the UK Housing and Stock Markets
Authors: Toyoshima Yuki
Published: April 2018

This paper employs the two-step procedure to analyze the causality-in-mean and causality-in-variance between the housing and stock markets of the UK. The empirical findings make two key contributions. First, although previous studies have indicated a one-way causal relation from the housing market to the stock market in the UK, this paper discovered a two-way causal relation between them. Second, a causality-in-variance as well as a causality-in-mean was detected from the housing market to the stock market.
Concerns about Genetic Discrimination after Regulation: A Qualitative Study of the Situation Regarding BRCA and Huntington’s Disease in Belgium
Authors: Wauters Annet , Van Hoyweghen Ine
Published: April 2018

Although there is no unequivocal evidence of genetic discrimination (GD), and despite laws that prohibit it, individuals confronted with genetic diseases still seem to be concerned. The aim of this study was to gain in-depth understanding of experiences and concerns in relation to possible genetic discrimination. This article presents an analysis of semi-structured interviews with 42 individuals who had or were at risk of breast and ovarian cancer (BRCA) or Huntington’s disease (HD) in Belgium. Even after regulation, individuals at risk of BRCA and HD express concerns about possible genetic discrimination. These concerns relate to direct forms of GD, for instance those related to insurance and employment. Individuals were often unclear about and wary of legislation. Importantly, concerns were also expressed as to more subtle and indirect forms of GD, e.g., in social relations, where individuals fear being treated ‘differently’ and unfairly. Our study demonstrates how these concerns emerge at particular moments in life and how levels and forms of concern are influenced by the specific genetic disorder. Worries concerning these more subtle forms of genetic discrimination are more difficult to protect by law. Current legislative efforts do not appear to be effective in alleviating concerns about genetic discrimination. These regulations seem to be unclear, some participants are unsure about their effectiveness and they do not succeed in incorporating all forms of genetic discrimination. Particularly challenging is how to address indirect forms of genetic discrimination.
The Design and Optimization of Plasmonic Crystals for Surface Enhanced Raman Spectroscopy Using the Finite Difference Time Domain Method
Authors: Bigness Alec , Montgomery Jason
Published: April 2018

We present computational studies of quasi three-dimensional nanowell (NW) and nanopost (NP) plasmonic crystals for applications in surface enhanced Raman spectroscopy (SERS). The NW and NP plasmonic crystals are metal coated arrays of cylindrical voids or posts, respectively, in a dielectric substrate characterized by a well/post diameter (D), relief depth (R D), periodicity (P), and metal thickness (M T). Each plasmonic crystal is modeled using the three-dimensional finite-difference time-domain (FDTD) method with periodic boundary conditions in the x- and y-directions applied to a computational unit cell to simulate the effect of a periodic array. Relative SERS responses are calculated from time-averaged electric field intensity enhancements at λ exc and λ scat or at λ mid via G SERS 4 = g 2 ( λ exc ) × g 2 ( λ scat ) or G mid 4 = g 4 ( λ mid ) , respectively, where g 2 = | E | 2 / | E 0 | 2 . Comparisons of G SERS 4 and G mid 4 are made to previously reported experimental SERS measurements for NW and NP geometries. Optimized NW and NP configurations based on variations of D, P, R D, and M T using G SERS 4 are presented, with 6× and 2× predicted increases in SERS, respectively. A novel plasmonic crystal based on square NP geometries are considered with an additional 3× increase over the optimized cylindrical NP geometry. NW geometries with imbedded spherical gold nanoparticles are considered, with 10× to 10 3 × increases in SERS responses over the NW geometry alone. The results promote the use of FDTD as a viable in silico route to the design and optimization of SERS active devices.
Smart Metamaterial Based on the Simplex Tensegrity Pattern
Authors: Al Sabouni-Zawadzka Anna , Gilewski Wojciech
Published: April 2018

In the present paper, a novel cellular metamaterial that was based on a tensegrity pattern is presented. The material is constructed from supercells, each of which consists of eight 4-strut simplex modules. The proposed metamaterial exhibits some unusual properties, which are typical for smart structures. It is possible to control its mechanical characteristics by adjusting the level of self-stress or by changing the properties of structural members. A continuum model is used to identify the qualitative properties of the considered metamaterial, and to estimate how the applied self-stress and the characteristics of cables and struts affect the whole structure. The performed analyses proved that the proposed structure can be regarded as a smart metamaterial with orthotropic properties. One of its most important features are unique values of Poisson’s ratio, which can be either positive or negative, depending on the applied control parameters. Moreover, all of the mechanical characteristics of the proposed metamaterial are prone to structural control.
Effects of Pre-Treatments on Bioactivity of High-Purity Titanium
Authors: Wang Yaming , Wang Guangxin , Lu Zhi , Li Wuhui , Yan Yanfu , Song Yongfa , Akiyoshi Osaka
Published: April 2018

Titanium and its alloys are frequently employed in medical and dental clinics due to their good tissue compatibility, including commercially available pure Ti, Ti6A4V, or Ti-15Zr-4Ta-4Nb. Yet, they may behave very differently when in contact with our plasma because of their own chemical composition. The present study was designed to compare the in vitro behavior of highly pure Ti (>99.99%; hpTi) with those of the above titanium specimens when they were subjected to heating in air (HT), H2O2 and heating (CHT), and heating in air after forming grooves on the surface (GT). Since one of the measures of material-tissue compatibility has been in vitro apatite formation in artificial plasma, like simulated body fluid (SBF) of the Kokubo recipe, the apatite deposition in SBF on their surface and in their grooves were examined in terms of the X-ray diffraction, scanning electron microscopy, and energy dispersion X-ray analysis. The results showed that hpTi was as active in in vitro apatite deposition as the other reference titanium samples mentioned above. Moreover, GT specimens of hpTi induced apatite deposition on the platform of the grooves as well as in the grooves. Therefore, hpTi was concluded to have better activity, and to be clinically applicable.
Synthesis and Luminescent Properties of Europium Complexes Covalently Bonded to Hybrid Materials Based on MCM-41 and Poly(Ionic Liquids)
Authors: Zheng Xiaolong , Wang Meiyu , Li Qiuping
Published: April 2018

Due to the wide potential application in the fields of sensing, lighting materials, and optical–electrical multifunctional devices, rare earth complex hybrid materials have been studied extensively over the past decades. A poly(ionic liquid)/mesoporous-based hybrid system which has been functionalized by the covalently linked europium complexes was reported here. Through surface modification with a coupling agent bearing an vinyl group, MCM-41 was chosen as the carrier matrix for poly(ionic liquids) (PILs) and europium compounds, and based on that, novel luminescent hybrid materials were prepared by confining the ionic liquid and europium complexes into the inorganic Si–O frameworks. The resulting organic/inorganic materials are chemically bonded hybrids which show good photoluminescent properties such as broad excitation spectra, line-like emission spectra, and long luminescence lifetimes. The PILs/MCM-41/Eu3+ hybrid reported here is a rare earth multifunctional material which is believed to have potential applications in the field of optical–electrical materials.
An Interdisciplinary Study of Orthodontic, Orthopedic, and Otorhinolaryngological Findings in 12–14-Year-Old Preorthodontic Children
Authors: Lopatiene Kristina , Smailiene Dalia , Sidlauskiene Monika , Cekanauskas Emilis , Valaikaite Raimonda , Pribuisiene Ruta
Published: April 2018

Background and Objective. Malocclusion, the body posture, and the breathing pat- tern may correlate, but this issue is still controversial. The aim of the study was to examine the relationship between the type of malocclusion, the body posture, and the nasopharyngeal obstruction in 12-14-year-old children. Material and Methods. The study group consisted of 76 orthodontic patients (35 boys, 41 girls) aged 12-14 years (mean age, 12.79 years {SD, 0.98J). All the patients were examined by the same orthodontist (study model and cephalometric radiograph analysis), the same orthopedic surgeon (body posture examined from the front, the side, and the back), and the same otorhinolaryngologist (anterior and posterior rhinoscopy and pharyngoscopy) in a blind manner. Results. The prevalence of a poor body posture and a nasopharyngeal pathology was high in the present study. In total, 48.7% of the orthodontic patients had a kyphotic posture and 55.3% a rib hump in the thoracic region. The nasopharyngeal pathology was diagnosed in 78.9% of the patients. The patients with the kyphotic posture had a higher mandibular plane angle (MP-SN) and a lower sagittal position of the mandible SNB angle. A deeper overbite correlated with shoulder and scapular asymmetry. The kyphotic posture was diagnosed in 55.0% of the patients with the naso- pharyngeal pathology. Conclusions. The sagittal body posture was related to the vertical craniofacial parameters and hypertrophy of the tonsils and/or the adenoids. The study showed no relationship between the degree of crowding, the presence of a posterior cross bite, orthopedic parameters, and a breathing pattern.
Valproic Acid-Induced Pancreatitis in a 15-Year-Old Boy With Juvenile Myoclonic Epilepsy
Authors: Veri Kadi , Uibo Oivi , Talvik Inga , Talvik Tiina
Published: April 2018

Drug-induced acute pancreatitis is a rare condition in childhood, and information about the incidence of valproic acid-induced acute pancreatitis in the pediatric population is scarce. In this clinical case, we report a first documented pediatric case of valproic acid-induced pancreatitis in Estonia. A 15-year-old boy with juvenile myoclonic epilepsy developed acute pancreatitis after 2-month therapy with valproic acid. The symptoms of pancreatitis subsided within 1 week after the discontinuation of treatment with valproic acid. Acute pancreatitis should be suspected in any pedi- atric patient with gastrointestinal symptoms during valproate treatment
Effects of Solution Treating on Microstructural and Mechanical Properties of a Heavily Deformed New Biocompatible Ti–Nb–Zr–Fe Alloy
Authors: Cojocaru Vasile Dănuț , Șerban Nicolae
Published: April 2018

The effects of heavy cold plastic deformation by rolling on microstructural features and mechanical properties of Ti–25Nb–6Zr–1.7Fe (wt %) biocompatible alloy (TNZF) were studied. After a preliminary alloy processing, a heavy plastic deformation by cold-rolling (CR) with a total relative degree of plastic deformation of 90% (equivalent plastic strain, ε = 2.42) and a subsequent solution heat treatment (CR+ST) at 900 °C for 0.6 ks/water quenching were applied and then investigated. The CR and CR+ST states have microstructures consisting of mixtures of β-Ti phases and α″-Ti. The alloy in CR state shows a pronounced deformation texture, with highly deformed and elongated β-Ti grains, exhibiting internal highly fragmented areas, with shear lines at about 45° and a sub-micron/nanocrystalline fine dispersed α″-Ti phase. The alloy in CR+ST state has completely recrystallized equiaxed polyhedral β-Ti grains, with average grain size close to 52 μm and a sub-micron/nanocrystalline fine dispersed α″-Ti phase. Recorded mechanical properties, for both CR and CR+ST states, show quite similar values for the yield strength (σ0.2), ultimate tensile strength (σUTS) and Vickers microhardness (HV0.1) for CR state (σ0.2 = 603 MPa, σUTS = 1282 MPa and 287 HV0.1) in comparison with CR+ST state (σ0.2 = 598 MPa, σUTS = 1256 MPa and 256 HV0.1). Values for the modulus of elasticity (E) are lower (E = 72 GPa for CR state and E = 61 GPa for CR+ST state) than those for conventional biocompatible alloys (E ~ 110 GPa).
Who Is at Risk for Problematic Video Gaming? Risk Factors in Problematic Video Gaming in Clinically Referred Canadian Children and Adolescents
Authors: Lau Chloe , Stewart Shannon L. , Sarmiento Catalina , Saklofske Donald H. , Tremblay Paul F.
Published: April 2018

Both Internet and offline video gaming have become a normal aspect of child development, with estimates of children playing video games ranging from 90% to 97%. Research on problematic video gaming (PVG) has grown substantially in the last decade. Much of that research has focused on community samples, while research on clinically referred children and youth is lacking. The present study includes 5820 clinically referred children and youth across 44 mental health agencies, assessed using the interRAI Child and Youth Mental Health Assessment. Logistic regression analyses revealed that older age, male sex, extreme shyness, internalizing symptoms, externalizing symptoms, and poor relational strengths are all significant predictors of problematic video gaming (PVG). Further analyses suggested that, out of the internalizing symptoms, anhedonia was predictive of PVG in both males and females, but depressive symptoms and anxiety were not predictive of PVG when controlling for other variables in the model. Moreover, proactive aggression and extreme shyness were predictive of PVG in males, but not in females. The implications of these findings are discussed.
A Sensitive Gold Nanoplasmonic SERS Quantitative Analysis Method for Sulfate in Serum Using Fullerene as Catalyst
Authors: Li Chongning , Wang Libing , Luo Yanghe , Liang Aihui , Wen Guiqing , Jiang Zhiliang
Published: April 2018

Fullerene exhibited strong catalysis of the redox reaction between HAuCl4 and trisodium citrate to form gold nanoplasmon with a strong surface-enhanced Raman scattering (SERS) effect at 1615 cm−1 in the presence of Vitoria blue B molecule probes. When fullerene increased, the SERS peak enhanced linearly due to formation of more AuNPs as substrate. Upon addition of Ba2+, Ba2+ ions adsorb on the fullerene surface to inhibit the catalysis of fullerene that caused the SERS peak decreasing. Analyte SO42− combined with Ba2+ to form stable BaSO4 precipitate to release free fullerene that the catalysis recovered, and the SERS intensity increased linearly. Thus, a new SERS quantitative analysis method was established for the detection of sulfate in serum samples, with a linear range of 0.03–3.4 μM.
Household Food Insecurity as a Predictor of Stunted Children and Overweight/Obese Mothers (SCOWT) in Urban Indonesia
Authors: Mahmudiono Trias , Nindya Triska Susila , Andrias Dini Ririn , Megatsari Hario , Rosenkranz Richard R.
Published: April 2018

(1) Background: The double burden of malnutrition has been increasing in countries experiencing the nutrition transition. This study aimed to determine the relationship between household food insecurity and the double burden of malnutrition, defined as within-household stunted child and an overweight/obese mother (SCOWT). (2) Methods: A cross-sectional survey was conducted in the urban city of Surabaya, Indonesia in April and May 2015. (3) Results: The prevalence of child stunting in urban Surabaya was 36.4%, maternal overweight/obesity was 70.2%, and SCOWT was 24.7%. Although many households were food secure (42%), there were high proportions of mild (22.9%), moderate (15.3%) and severe (19.7%) food insecurity. In a multivariate logistic regression, the household food insecurity access scale (HFIAS) category significantly correlated with child stunting and SCOWT. Compared to food secure households, mildly food insecure households had the greatest odds of SCOWT (adjusted odds ratio (aOR) = 2.789; 95% confidence interval (CI) = 1.540–5.083), followed by moderately food insecure (aOR = 2.530; 95% CI = 1.286–4.980) and severely food insecure households (aOR = 2.045; 95% CI = 1.087–3.848). (4) Conclusions: These results support the hypothesis that the double burden of malnutrition is related to food insecurity, and the HFIAS category is a predictor of SCOWT.
Energy Deficit Required for Rapid Weight Loss in Elite Collegiate Wrestlers
Authors: Kondo Emi , Sagayama Hiroyuki , Yamada Yosuke , Shiose Keisuke , Osawa Takuya , Motonaga Keiko , Ouchi Shiori , Kamei Akiko , Nakajima Kohei , Higaki Yasuki , Tanaka Hiroaki , Takahashi Hideyuki , Okamura Koji
Published: April 2018

To determine energy density for rapid weight loss (RWL) of weight-classified sports, eight male elite wrestlers were instructed to lose 6% of body mass (BM) within 53 h. Energy deficit during the RWL was calculated by subtracting total energy expenditure (TEE) determined using the doubly labeled water method (DLW) from energy intake (EI) assessed with diet records. It was also estimated from body composition change estimated with the four-component model (4C) and other conventional methods. BM decreased significantly by 4.7 ± 0.5 kg (6.4 ± 0.5%). Total body water loss was the major component of the BM loss (71.0 ± 7.6%). TEE was 9446 ± 1422 kcal, and EI was 2366 ± 1184 kcal during the RWL of 53-h; therefore, the energy deficit was 7080 ± 1525 kcal. Thus, energy density was 1507 ± 279 kcal/kg ∆BM during the RWL, comparable with values obtained using the 4C, three-component model, dual energy X-ray absorptiometry, and stable isotope dilution. Energy density for RWL of wrestlers is lower than that commonly used (7400 or 7700 kcal/kg ΔBM). Although RWL is not recommended, we propose that commonly practiced extreme energy restriction such as 7400 or 7700 kcal/kg ΔBM during RWL appears to be meaningless.
An Assessment of Atmospheric and Meteorological Factors Regulating Red Sea Phytoplankton Growth
Authors: Li Wenzhao , El-Askary Hesham , Qurban Mohamed , Proestakis Emmanouil , Garay Michael , Kalashnikova Olga , Amiridis Vassilis , Gkikas Antonis , Marinou Eleni , Piechota Thomas , Manikandan K.
Published: April 2018

This study considers the various factors that regulate nutrients supply in the Red Sea. Multi-sensor observation and reanalysis datasets are used to examine the relationships among dust deposition, sea surface temperature (SST), and wind speed, as they may contribute to anomalous phytoplankton blooms, through time-series and correlation analyses. A positive correlation was found at 0–3 months lag between chlorophyll-a (Chl-a) anomalies and dust anomalies over the Red Sea regions. Dust deposition process was further examined with dust aerosols’ vertical distribution using satellite lidar data. Conversely, a negative correlation was found at 0–3 months lag between SST anomalies and Chl-a that was particularly strong in the southern Red Sea during summertime. The negative relationship between SST and phytoplankton is also evident in the continuously low levels of Chl-a during 2015 to 2016, which were the warmest years in the region on record. The overall positive correlation between wind speed and Chl-a relate to the nutritious water supply from the Gulf of Aden to the southern Red Sea and the vertical mixing encountered in the northern part. Ocean Color Climate Change Initiative (OC-CCI) dataset experience some temporal inconsistencies due to the inclusion of different datasets. We addressed those issues in our analysis with a valid interpretation of these complex relationships.
Urban Expansion Occurred at the Expense of Agricultural Lands in the Tarai Region of Nepal from 1989 to 2016
Authors: Rimal Bhagawat , Zhang Lifu , Stork Nigel , Sloan Sean , Rijal Sushila
Published: April 2018

Recent rapid urbanization in developing countries presents challenges for sustainable environmental planning and peri-urban cropland management. An improved understanding of the timing and pattern of urbanization is needed to determine how to better plan urbanization for the near future. Here, we describe the spatio-temporal patterns of urbanization and related land-use/land-cover (LULC) changes in the Tarai region of Nepal, as well as discuss the factors underlying its rapid urban expansion. Analyses are based on regional time-series Landsat 5, 7 and 8 image classifications for six years between 1989 and 2016, representing the first long-term observations of their kind for Nepal. During this 27-year period, gains in urban cover and losses of cultivated lands occurred widely. Urban cover occupied 221.1 km2 in 1989 and increased 320% by 2016 to a total 930.22 km2. Cultivated land was the primary source of new urban cover. Of the new urban cover added since 1989, 93% was formerly cultivated. Urban expansion occurred at moderately exponential rates over consecutive observation periods, with nearly half of all urban expansion occurring during 2006–2011 (305 km2). The annual rate of urban growth during 1989–1996 averaged 3.3% but reached as high as 8.09% and 12.61% during 1996–2001 and 2011–2016, respectively. At the district level, the rate of urban growth and, by extension, agricultural loss, were weakly related to total population growth. Variability in this relationship suggests that concerted urban-growth management may reduce losses of agricultural lands relative to historic trends despite further population growth and urbanization. Urbanization and LULC change in the Tarai region are attributable to significant inter-regional migration in a context of poor urban planning and lax policies controlling the conversion and fragmentation of peri-urban cultivated lands. Urban expansion and farmland loss are expected to continue in the future.
Provincial Carbon Emissions Reduction Allocation Plan in China Based on Consumption Perspective
Authors: Wang Xuecheng , Tang Xu , Zhang Baosheng , McLellan Benjamin C. , Lv Yang
Published: April 2018

China is a country with substantial differences in economic development, energy consumption mix, resources, and technologies, as well as the development path at the provincial level. Therefore, China’s provinces have different potential and degrees of difficulty to carry out carbon emission reduction (CER) requirements. In addition, interprovincial trade, with a large amount of embodied carbon emissions, has become the fastest growing driver of China’s total carbon emissions. A reasonable CER allocation plan is, therefore, crucial for realizing the commitment that China announced in the Paris Agreement. How to determine a fair way to allocate provincial CER duties has become a significant challenge for both policy-makers and researchers. In this paper, ecological network analysis (ENA), combined with a multi-regional input-output model (MRIO), is adopted to build an ecological network of embodied emissions across 30 provinces. Then, by using flow analysis and utility analysis based on the ENA model, the specific relationships among different provinces were determined, and the amount of responsibility that a certain province should take quantified, with respect to the embodied carbon emission (ECE) flows from interprovincial trade. As a result, we suggest a new CER allocation plan, based on the detailed data of interprovincial relationships and ECE flows.
Eye of Sustainable Planning: A Conceptual Heritage-Led Urban Regeneration Planning Framework
Authors: Dogruyol Kagan , Aziz Zeeshan , Arayici Yusuf
Published: April 2018

Implementation and integration of sustainable development within a management framework is the main problem of urban regeneration projects. Therefore, this paper aims to develop a sustainable heritage-led urban regeneration planning framework, which will act as an urban regeneration project life cycle model and aid sustainable planning and decision-making processes for project managers. First, a literature review is used to conceptualise the first version of the sustainable planning framework. Then, it is validated by conducting interviews with professionals in Northern Cyprus. Sustainable heritage-led urban regeneration planning problems exist in the case study region. Therefore, the data collected for this research is significant to the research problem. Results showed that there is a lack of knowledge towards heritage-led urban regeneration among the local community and it is the main source of sustainable planning problems. Therefore, a questionnaire survey is conducted to validate this problem. The results validated that there is a sustainability perception difference between the local community and professionals, and the knowledge level of the local community was not satisfactory. Finally, a knowledge management system is introduced in the final version of the framework in order to empower stakeholders, and the “eye of sustainable planning” is introduced. Perception differences between the local community and professionals and the lack of knowledge of the local community towards heritage-led urban regeneration is introduced by this research. This study is limited to heritage-led regeneration projects and future studies may extend the scope of this study to different countries.
Ecological Wisdom and Inspiration Underlying the Planning and Construction of Ancient Human Settlements: Case Study of Hongcun UNESCO World Heritage Site in China
Authors: Zheng Shanwen , Han Baolong , Wang Dang , Ouyang Zhiyun
Published: April 2018

Human settlements are social-economic-natural complex ecosystems centered on human activities and the most prominent site for the contradictions between humans and the environment. Taking Hongcun, a UNESCO World Heritage site in China, as an example, this paper analyzes the methods and effect of coupling man and nature in Hongcun, summarizes the ecological wisdom of dealing with the relationship between human and nature, and uses this wisdom to shed light on the planning, construction, and management of contemporary urban and rural settlements. Firstly, the study introduces the Human-Natural Intergraded Ecological Planning (HNIEP) model’s hypothesis, explaining its foundation and potential principles or approaches. Secondly, using the case study of Hongcun to explain, support, and validate the HNIEP model and its framework, the study found that the unique planning and construction of Hongcun has greatly promoted ecosystem services, such as local microclimate regulation, rainwater runoff regulation, water conservation, landscape aesthetic, and engagement with nature. Thirdly, Hongcun reflects the concept of harmonious coexistence between human and nature, the wisdom of rational use of ecosystem structures, processes and functions, and the wisdom of coupling human activities with the living environment and natural ecosystem. Finally, the paper summarizes the enlightenment brought by both the HNIEP model and Hongcun wisdom to contemporary urban-rural planning and construction management.
Special Issue “H. pylori Virulence Factors in the Induction of Gastric Cancer”
Authors: Crabtree Jean E. , Wessler Silja
Published: April 2018

Twenty-five years ago, Helicobacter pylori was identified as the causative agent of gastric disorders,ranging from acute inflammation [...]
A Systematic Review of the Natural Virome of Anopheles Mosquitoes
Authors: Nanfack Minkeu Ferdinand , Vernick Kenneth
Published: April 2018

Anopheles mosquitoes are vectors of human malaria, but they also harbor viruses, collectively termed the virome. The Anopheles virome is relatively poorly studied, and the number and function of viruses are unknown. Only the o’nyong-nyong arbovirus (ONNV) is known to be consistently transmitted to vertebrates by Anopheles mosquitoes. A systematic literature review searched four databases: PubMed, Web of Science, Scopus, and Lissa. In addition, online and print resources were searched manually. The searches yielded 259 records. After screening for eligibility criteria, we found at least 51 viruses reported in Anopheles, including viruses with potential to cause febrile disease if transmitted to humans or other vertebrates. Studies to date have not provided evidence that Anopheles consistently transmit and maintain arboviruses other than ONNV. However, anthropophilic Anopheles vectors of malaria are constantly exposed to arboviruses in human bloodmeals. It is possible that in malaria-endemic zones, febrile symptoms may be commonly misdiagnosed. It is also possible that anophelines may be inherently less competent arbovirus vectors than culicines, but if true, the biological basis would warrant further study. This systematic review contributes a context to characterize the biology, knowledge gaps, and potential public health risk of Anopheles viruses.