bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparative Study of Air Resistance with and without a Superstructure on a Container Ship Using Numerical Simulation
Authors: Seok Jun , Park Jong-Chun
Published: April 2020

This study investigated the resistance performance of ships, using the air resistance correction method. In general, air resistance is calculated using an empirical formula rather than a direct calculation, as the effect of air resistance on the total resistance of ships is relatively smaller than that of water. However, for ships with large superstructures, such as container ships, LNG (liquefied natural gas) carriers, and car-ferries, the wind-induced effects might influence the air resistance acting on the superstructure, as well as cause attitude (trim and sinkage) changes of the ship. Therefore, this study performed numerical simulations to compare the total resistance, trim, and sinkage of an 8000 TEU-class container, ship with and without superstructures. The numerical simulation conditions were verified by comparing them with the study results of the KCS (KRISO Container Ship) hull form. In addition, the differences in the above values between the two cases were compared using the coefficients calculated by the empirical formula to identify the effects on the air resistance coefficient.
Varying Biological Activity and Wind Stress Affect the DMS Response during the SAGE Iron Enrichment Experiment
Authors: Jones Graham , Harvey Mike , King Stacey , Schneider Anke , Wright Simon , Fortescue Darren , Swan Hilton , Maher Damien T.
Published: April 2020

Surface dissolved dimethylsulfide (DMS) and depth-integrated dimethylsulfoniopropionate (DMSP) measurements were made from March to April 2004 during the SOLAS Air–Sea Gas Exchange Experiment (SAGE), a multiple iron enrichment experiment in subantarctic waters SE of New Zealand. During the first two iron enrichments, chl a and DMS production were constrained, but during the third enrichment, large pulses of DMS occurred in the fertilised IN patch, compared with the unfertilised OUT patch. During the third and fourth iron infusions, total chl a concentrations doubled from 0.52 to 1.02 µg/L. Hapto8s and prasinophytes accounted for 50%, and 20%, respectively, of total chl a. The large pulses of DMS during the third iron enrichment occurred during high dissolved DMSP concentrations and wind strength; changes in dinoflagellate, haptophyte, and cyanobacteria biomass; and increased microzooplankton grazing that exerted a top down control on phytoplankton production. A further fourth iron enrichment did cause surface waters to increase in DMS, but the effect was not as great as that recorded in the third enrichment. Differences in the biological response between SAGE and several other iron enrichment experiments were concluded to reflect microzooplankton grazing activities and the microbial loop dominance, resulting from mixing of the MLD during storm activity and high winds during iron enrichment.
Modeling the Impact of Urbanization on Land-Use Change in Bahir Dar City, Ethiopia: An Integrated Cellular Automata–Markov Chain Approach
Authors: Fitawok Melaku Bogale , Derudder Ben , Minale Amare Sewnet , Van Passel Steven , Adgo Enyew , Nyssen Jan
Published: April 2020

The fast-paced urbanization of recent decades entails that many regions are facing seemingly uncontrolled land-use changes (LUCs) that go hand in hand with a range of environmental and socio-economic challenges. In this paper, we use an integrated cellular automata–Markov chain (CA–MC) model to analyze and predict the urban expansion of and its impact on LUC in the city of Bahir Dar, Ethiopia. To this end, the research marshals high-resolution Landsat images of 1991, 2002, 2011, and 2018. An analytical hierarchy process (AHP) method is then used to identify the biophysical and socioeconomic factors underlying the expansion in the research area. It is shown that, during the period of study, built-up areas are rapidly expanding in the face of an overall decline of the farmland and vegetation cover. Drawing on a model calibration for 2018, the research predicts the possible geographies of LUC in the Bahir Dar area for 2025, 2034, and 2045. It is predicted that the conversions of other land-use types into built-up areas will persist in the southern, southwestern, and northeastern areas of the sprawling city, which can mainly be traced back to the uneven geographies of road accessibility, proximity to the city center, and slope variables. We reflect on how our findings can be used to facilitate sustainable urban development and land-use policies in the Bahir Dar area.
Innovative Meshing Strategies for Bearing Lubrication Simulations
Authors: Concli Franco , Schaefer Christian Thomas , Bohnert Christof
Published: April 2020

Efficiency improvement is the new challenge in all fields of design. In this scenario the reduction of power losses is becoming more and more a main concern also in the design of power transmissions. Appropriate models to predict power losses are therefore required from the earliest stages of the design phase. The aim of this project is to carry out lubrication simulations of several variants of a cylindrical roller bearing to understand the lubricant distribution and the related churning power losses. Several strategies to reduce the computational effort were used. Among them the sectorial symmetry and three innovative meshing strategies (purely analytical with and without interfaces and analytical/subtractive) that were implemented in the OpenFOAM® environment. The results of the different approaches were compared among them and reasonable savings in terms of computational effort were shown.
Examining the Feasibility of the Sturm–Liouville Theory for Ross Recovery
Authors: Ahn Shinmi , Park Hyungbin
Published: April 2020

Recent studies have suggested that it is feasible to recover a physical measure from a risk-neutral measure. Given a market state variable modeled as a Markov process, the key concept is to extract a unique positive eigenfunction of the generator of the Markov process. In this work, the feasibility of this recovery theory is examined. We prove that, under a restrictive integrability condition, recovery is feasible if and only if both endpoints of the state variable are limit-point. Several examples with explicit positive eigenfunctions are considered. However, in general, a physical measure cannot be recovered from a risk-neutral measure. We provide a financial and mathematical rationale for such recovery failure.
Role of Parents in Body Mass Reduction in Children with Obesity—Adherence and Success of 1-Year Participation in an Intervention Program
Authors: Rahelić Valentina , Głąbska Dominika , Guzek Dominika , Pavić Eva , Rumora Samarin Ivana , Bogdanić Ana , Špehar Uroić Anita , Rojnić Putarek Nataša , Krnić Nevena
Published: April 2020

Background and Objectives: Obesity in children and adolescents results in a number of serious health-related consequences necessitating early treatment. Support from family members and family-focused lifestyle interventions can improve effectiveness of the treatment. The aim of the study was to assess the effects of parental characteristics and family-based dietary habits on the adherence and success of a body mass reduction program in children with obesity included in a lifestyle intervention program after 1 year. Materials and Methods: The program included dietetic, psychosocial, and endocrine counseling given to individuals either alone or in groups and was conducted by a multidisciplinary team (consisting of endocrinologists, nurses, psychologists, social counselors, dietitians, and physiotherapists). A total of 113 children aged 10–17 years (mean age 12.9 ± 2.0; 60 girls, 53 boys) were included in the program. After 1 year of participation, the rate of adherence and success were assessed. The effect of the participants’ general characteristics, including anthropometric data, as well as parental characteristics (marital status, employment, education, body mass index (BMI), duration of breastfeeding) and the circumstances of meal consumption (eating at home or outside, fast food consumption), was analyzed. Results: The most important factors predicting body mass reduction success were baseline BMI (p < 0.0001) and waist–hip ratio (WHR) (p = 0.04), but they did not predict body mass reduction adherence. Conclusions: The meal consumption habits and support from family members may be among the determinants of adherence to a body mass reduction program for preadolescents and adolescents with obesity. However, the results of the presented study suggested that baseline BMI and WHR are the most important determinants of the body mass reduction success.
Acetylation of Phenylalanine Hydroxylase and Tryptophan 2,3-Dioxygenase Alters Hepatic Aromatic Amino Acid Metabolism in Weaned Piglets
Authors: Huang Lu , Yao Weilei , Wang Tongxin , Li Juan , He Qiongyu , Huang Feiruo
Published: April 2020

Weaning significantly alters hepatic aromatic amino acid (AAA) metabolism and physiological functions. However, less is known about the regulating mechanism of hepatic AAA metabolism after weaning. A total of 200 21-day-old piglets (Duroc × Landrace) were assigned randomly to the control group and the weaning group. In this study, weaning significantly decreased the concentration of phenylalanine, tryptophan, and tyrosine in piglet livers (p < 0.05). Additionally, through the detection of liver AAA metabolites and metabolic enzyme activity, it was observed that hepatic tryptophan catabolism was enhanced, while that of phenylalanine was weakened (p < 0.05). Intriguingly, acetyl-proteome profiling of liver from weaned piglets showed that weaning exacerbated the acetylation of phenylalanine hydroxylase (PAH) and the deacetylation of tryptophan 2,3-dioxygenase (TDO). Analysis of PAH and TDO acetylation in Chang liver cells showed that acetylation decreased the PAH activity, while deacetylation increased the TDO activity (p < 0.05). Furthermore, metabolites of AAAs and the acetylation statuses of PAH and TDO in primary hepatocytes from weaned piglets were consistent with the results in vivo. These findings indicated that weaning altered the PAH and TDO activity by affecting the acetylation state of the enzyme in piglets’’ livers. Lysine acetylation may be a potential regulatory mechanism for AAA metabolism in response to weaning.
Separation, Characterization, and Handling of Microalgae by Dielectrophoresis
Authors: Abt Vinzenz , Gringel Fabian , Han Arum , Neubauer Peter , Birkholz Mario
Published: April 2020

Microalgae biotechnology has a high potential for sustainable bioproduction of diverse high-value biomolecules. Some of the main bottlenecks in cell-based bioproduction, and more specifically in microalgae-based bioproduction, are due to insufficient methods for rapid and efficient cell characterization, which contributes to having only a few industrially established microalgal species in commercial use. Dielectrophoresis-based microfluidic devices have been long established as promising tools for label-free handling, characterization, and separation of broad ranges of cells. The technique is based on differences in dielectric properties and sizes, which results in different degrees of cell movement under an applied inhomogeneous electrical field. The method has also earned interest for separating microalgae based on their intrinsic properties, since their dielectric properties may significantly change during bioproduction, in particular for lipid-producing species. Here, we provide a comprehensive review of dielectrophoresis-based microfluidic devices that are used for handling, characterization, and separation of microalgae. Additionally, we provide a perspective on related areas of research in cell-based bioproduction that can benefit from dielectrophoresis-based microdevices. This work provides key information that will be useful for microalgae researchers to decide whether dielectrophoresis and which method is most suitable for their particular application.
The ACC-Deaminase Producing Bacterium Variovorax sp. CT7.15 as a Tool for Improving Calicotome villosa Nodulation and Growth in Arid Regions of Tunisia
Authors: Bessadok Khouloud , Navarro-Torre Salvadora , Pajuelo Eloísa , Mateos-Naranjo Enrique , Redondo-Gómez Susana , Caviedes Miguel Ángel , Fterich Amira , Mars Mohamed , Rodríguez-Llorente Ignacio D.
Published: April 2020

Calicotome villosa is a spontaneous Mediterranean legume that can be a good candidate as pioneer plants to limit regression of vegetation cover and loss of biodiversity in Tunisian arid soils. In order to grow legumes in such soils, pairing rhizobia and nodule associated bacteria (NAB) might provide numerous advantages. In this work, cultivable biodiversity of rhizobial symbionts and NAB in nodules of C. villosa plants growing in five arid regions of south Tunisia was characterized. Phylogenetic analysis using 16S rDNA gene, dnak, recA and nodD sequences separated nodule-forming bacteria in six clades associated to genera Ensifer, Neorhizobium, Phyllobacterium and Rhizobium. Among NAB, the strain Variovorax sp. CT7.15 was selected due to its capacity to solubilise phosphate and, more interestingly, its high level of aminocyclopropane-1-carboxylate deaminase (ACC deaminase) activity. C. villosa plants were inoculated with representative rhizobia of each phylogenetic group and co-inoculated with the same rhizobia and strain CT7.15. Compared with single rhizobia inoculation, co-inoculation significantly improved plant growth and nodulation, ameliorated plant physiological state and increased nitrogen content in the plants, independently of the rhizobia used. These results support the benefits of pairing rhizobia and selected NAB to promote legume growth in arid or degraded soils.
A Phosphite Dehydrogenase Variant with Promiscuous Access to Nicotinamide Cofactor Pools Sustains Fast Phosphite-Dependent Growth of Transplastomic Chlamydomonas reinhardtii
Authors: Cutolo Edoardo , Tosoni Matteo , Barera Simone , Herrera-Estrella Luis , Dall’Osto Luca , Bassi Roberto
Published: April 2020

Heterologous expression of the NAD+-dependent phosphite dehydrogenase (PTXD) bacterial enzyme from Pseudomonas stutzerii enables selective growth of transgenic organisms by using phosphite as sole phosphorous source. Combining phosphite fertilization with nuclear expression of the ptxD transgene was shown to be an alternative to herbicides in controlling weeds and contamination of algal cultures. Chloroplast expression of ptxD in Chlamydomonas reinhardtii was proposed as an environmentally friendly alternative to antibiotic resistance genes for plastid transformation. However, PTXD activity in the chloroplast is low, possibly due to the low NAD+/NADP+ ratio, limiting the efficiency of phosphite assimilation. We addressed the intrinsic constraints of the PTXD activity in the chloroplast and improved its catalytic efficiency in vivo via rational mutagenesis of key residues involved in cofactor binding. Transplastomic lines carrying a mutagenized PTXD version promiscuously used NADP+ and NAD+ for converting phosphite into phosphate and grew faster compared to those expressing the wild type protein. The modified PTXD enzyme also enabled faster and reproducible selection of transplastomic colonies by directly plating on phosphite-containing medium. These results allow using phosphite as selective agent for chloroplast transformation and for controlling biological contaminants when expressing heterologous proteins in algal chloroplasts, without compromising on culture performance.
Shoot Characterization of Isoprene and Ocimene-Emitting Transgenic Arabidopsis Plants under Contrasting Environmental Conditions
Authors: Faralli Michele , Li Mingai , Varotto Claudio
Published: April 2020

Isoprenoids are among the most abundant biogenic volatile compounds (VOCs) emitted by plants, and mediate both biotic and abiotic stress responses. Here, we provide for the first time a comparative analysis of transgenic Arabidopsis lines constitutively emitting isoprene and ocimene. Transgenic lines and Columbia-0 (Col-0) Arabidopsis were characterized under optimal, water stress, and heat stress conditions. Under optimal conditions, the projected leaf area (PLA), relative growth rate, and final dry weight were generally higher in transgenics than Col-0. These traits were associated to a larger photosynthetic capacity and CO2 assimilation rate at saturating light. Isoprene and ocimene emitters displayed a moderately higher stress tolerance than Col-0, showing higher PLA and gas-exchange traits throughout the experiments. Contrasting behaviors were recorded for the two overexpressors under water stress, with isoprene emitters showing earlier stomatal closure (conservative behavior) than ocimene emitters (non-conservative behavior), which might suggest different induced strategies for water conservation and stress adaptation. Our work indicates that (i) isoprene and ocimene emitters resulted in enhanced PLA and biomass under optimal and control conditions and that (ii) a moderate stress tolerance is induced when isoprene and ocimene are constitutively emitted in Arabidopsis, thus providing evidence of their role as a potential preferable trait for crop improvement.
DNA Fingerprinting and Species Identification Uncovers the Genetic Diversity of Katsouni Pea in the Greek Islands Amorgos and Schinoussa
Authors: Stavridou Evangelia , Lagiotis Georgios , Karapetsi Lefkothea , Osathanunkul Maslin , Madesis Panagiotis
Published: April 2020

Pea (P. sativum L.), one of the most important legume crops worldwide, has been traditionally cultivated in Lesser Cyclades since ancient times. The commonly known traditional pea cultivar, ‘Katsouni’, is endemic to the islands of Amorgos and Schinoussa and is of great local economic importance. Despite the widespread cultivation of ‘Katsouni’ in both islands, it is still unknown whether the current Schinoussa and Amorgos pea populations are distinct landraces, and if they have common evolutionary origin. To assist conservation and breeding of the pea crop, the genetic diversity and phylogenetic relationships of 39 pea samples from Amorgos and 86 from Schinoussa were studied using DNA barcoding and ISSR marker analyses. The results indicate that both populations are different landraces with distinct geographical distribution and are more closely related to P. sativum subsp. elatius than the P. abyssinicum and P. fulvum species. Further characterization of the ‘Katsouni’ landraces for functional polymorphisms regarding pathogen resistance, revealed susceptibility to the powdery mildew (Erysiphe pisi DC.). This work represents the first investigation on the genetic diversity and population structure of the ‘Katsouni’ cultivar. Exploiting the local genetic diversity of traditional landraces is fundamental for conservation practices and crop improvement through breeding strategies.
Effect of Essential Nutrients on Roots Growth and Lifespan of Huanglongbing Affected Citrus Trees
Authors: Atta Alisheikh A. , Morgan Kelly T. , Hamido Said A. , Kadyampakeni Davie M.
Published: April 2020

Understanding citrus tree root development and dynamics are critical in determining crop best nutrient management practices. The role of calcium (Ca) and magnesium (Mg), manganese (Mn), Zinc (Zn), and boron (B) on huanglongbing (HLB) affected citrus trees’ root growth and lifespan in Florida is not fully documented. Thus, the objective of this study was to determine the impact of foliar and ground-applied essential nutrients on seasonal fine root length density (FRLD; diameter (d) < 2 mm) and coarse roots (d > 2 mm), FRLD dynamics, root survival probability (lifespan), and root-zone soil pH of HLB-affected sweet orange trees. Results indicated that Ca treated trees budded on Cleopatra (Cleo) and Ca and Mg combined treatments on Swingle (Swc) rootstocks significantly increased seasonal FRLD of fine (< 2 mm) and coarse roots. The highest median root lifespan of Ca treated trees was 325 and 339 days for trees budded on Cleo and Swc rootstocks, respectively. In the second study, the coarse roots showed a significantly higher reaction to the nutrition applied than the fine roots. Meanwhile, the 2× (1× foliar and 1× ground-applied) treated trees showed a significantly higher median root lifespan compared to the other treatments. Thus, the current study unwraps future studies highlighting the combined soil and/or foliar application of the above nutrients to stimulate FRLD and improve root lifespan on HLB-affected sweet oranges with emphasis on root-zone soil pH.
Aerodynamic Studies on Non-Premixed Oxy-Methane Flames and Separated Oxy-Methane Cold Jets
Authors: Jana Tamal , Kaushik Mrinal , Deb Dipankar , Mureşan Vlad , Ungureşan Mihaela
Published: April 2020

Both cold and flame jets find numerous applications in different fields, ranging from domestic applications to aerospace and space technology. Indeed, the applications of isothermal and non-isothermal jets in the flame heating industry fascinated the researchers to gain an in-depth understanding. Nevertheless, these benefits are not standalone, rather, they are associated with major disadvantages such as improper jet mixing and flame instabilities that require careful remedies. In the present investigation, three-inline jets, having methane jet at the center and two oxygen jets at the periphery, are studied computationally in a three-dimensional domain, with and without considering the effects of combustion. To study the mixing characteristics of cold jets, the radial velocity distributions at different streamwise locations have been analyzed at the jet inlet velocity of 27 m/s. However, for oxygen and methane flame jets, inlet velocities are varied as 27 m/s and 54 m/s. Moreover, to investigate the effects of temperature variation on mixing characteristics at a particular jet velocity, the inlet temperatures of reactants are varied as 300 K, 500 K, and 700 K, at the jet inlet velocity of 27 m/s. Combustion is found to have a profound impact on the mixing characteristics. At the inlet temperature of 300 K, a higher centerline velocity decay is observed for non-reactive jets as compared to reactive flame jets. Moreover, the turbulent kinetic energy distribution is relatively higher in the case of non-reactive jets, which is the direct evidence of an augmented mixing. As is obvious, the turbulent kinetic energy at the jet shear layer is maximum due to the formation of large-scale coherent eddies. The decay in centerline velocity is found to be increasing with an increase of inlet temperature. Additionally, with an increase of jet velocity, the radial velocity profiles become more asymmetrical, consequently yielding an unstable flame.
Numerical Investigation of Fluid Flow and In-Cylinder Air Flow Characteristics for Higher Viscosity Fuel Applications
Authors: Hamid Mohd Fadzli , Idroas Mohamad Yusof , Sa’ad Shukriwani , Yew Heng Teoh , Che Mat Sharzali , Zainal Alauddin Zainal Alimuddin , Shamsuddin Khairul Akmal , Shuib Raa Khimi , Abdullah Muhammad Khalil
Published: April 2020

Generally, the compression ignition (CI) engine that runs with emulsified biofuel (EB) or higher viscosity fuel experiences inferior performance and a higher emission compared to petro diesel engines. The modification is necessary to standard engine level in order to realize its application. This paper proposes a guide vane design (GVD), which needs to be installed in the intake manifold, is incorporated with shallow depth re-entrance combustion chamber (SCC) pistons. This will organize and develop proper in-cylinder airflow to promote better diffusion, evaporation and combustion processes. The model of GVD and SCC piston was designed using SolidWorks 2017; while ANSYS Fluent version 15 was utilized to run a 3D analysis of the cold flow IC engine. In this research, seven designs of GVD with the number of vanes varied from two to eight vanes (V2–V8) are used. The four-vane model (V4) has shown an excellent turbulent flow as well as swirl, tumble and cross tumble ratios in the fuel-injected region compared to other designs. This is indispensable to break up heavier fuel molecules of EB to mix with the air that will eventually improve engine performance.
Integration of a National E-Theses Online Service with Institutional Repositories
Authors: Bunakov Vasily , Madden Frances
Published: April 2020

We present an information resource prototype that was developed by the FREYA project for the integration of a national e-thesis service and institutional repositories supported by a large national laboratory. The integration allows us to mutually enrich the metadata in the e-thesis service and institutional repositories with new entities and attributes, and can offer novel ways of reasoning over research outcomes that are supported by direct funding and funding-in-kind by large research facilities. The integrated information resource can be presented as a labeled-property graph for its exploration with a declarative query language and visualizations. We emphasize the role of persistent identifiers (PIDs), including for entities that are currently not necessarily or not consistently assigned PIDs.
Co-Creating for Locality and Sustainability: Design-Driven Community Regeneration Strategy in Shanghai’s Old Residential Context
Authors: Jiang Chenhan , Xiao Yiqi , Cao Hongyi
Published: April 2020

Community regeneration has drawn much attention in both the urban development and sustainable design fields in the last decade. As a response to the regeneration challenges of Shanghai’s old and high-density communities, this article proposes two design-driven strategies: enabling residents to become innovation protagonists and facilitating collaborative entrepreneurial clusters based on the reorganization of community resources. Two ongoing collaborative projects between the Siping community and Tongji University—Open Your Space microregeneration (OYS) and the Neighborhood of Innovation, Creativity, and Entrepreneurship Towards 2035 (NICE 2035) living labs project—are adopted as main case studies. Research findings are put forward through a structured analysis of qualitative data. Firstly, we reviewed the situation and sustainable goals for Shanghai’s old residential communities, and how design-centric social innovation and collaboration can be effective interventions. Secondly, we analyzed resident empowerment approaches to decision-making, co-design, and co-management processes in OYS with participatory observation. Finally, through participants’ interviews and key events analysis in NICE 2035, we investigated how living labs reuse community distributed resources to develop lifestyle-based business prototypes. The inquiry of this article proposes a co-creation mechanism and action guides towards localized and sustainable community regeneration, which can provide a contextual paradigm for similar challenges.
Knowledge, Attitudes and Perceptions of Immigrant Parents Towards Human Papillomavirus (HPV) Vaccination: A Systematic Review
Authors: Netfa Faeza , Tashani Mohamed , Booy Robert , King Catherine , Rashid Harunor , Skinner Susan R.
Published: April 2020

Background: Our understanding about knowledge, attitudes and perceptions (KAP) of immigrants regarding human papillomavirus (HPV) vaccine is poor. We present the first systematic review on KAP of immigrant parents towards HPV vaccine offered to their children. Methods: Major bio-medical databases (Medline, Embase, Scopus and PsycINFO) were searched using a combination of keyword and database-specific terms. Following identification of studies, data were extracted, checked for accuracy, and synthesised. Quality of the studies was assessed using the Newcastle Ottawa Scale and the Joanna Briggs Institute Qualitative Assessment tool. Results: A total of 311 titles were screened against eligibility criteria; after excluding 292 titles/full texts, 19 studies were included. The included studies contained data on 2206 adults. Participants’ knowledge was explored in 16 studies and ranged from none to limited knowledge. Attitudes about HPV vaccination were assessed in 13 studies and were mixed: four reported negative attitudes fearing it would encourage sexual activity; however, this attitude often changed once parents were given vaccine information. Perceptions were reported in 10 studies; most had misconceptions and concerns regarding HPV vaccination mostly influenced by cultural values. Conclusion: The knowledge of HPV-related diseases and its vaccine among immigrant parents in this study was generally low and often had negative attitude or perception. A well-designed HPV vaccine health educational program on safety and efficacy of HPV vaccination targeting immigrant parents is recommended.
When Can One Vaccinate with a Live Vaccine after Wild-Type Dengue Infection?
Authors: Guy Bruno , Ooi Eng Eong , Ramos-Castañeda Jose , Thomas Stephen J.
Published: April 2020

Recommendations have been issued for vaccinating with the Sanofi Pasteur tetravalent dengue vaccine (CYD-TDV, Dengvaxia®) individuals aged from 9 to 45/60 years old with a prior dengue virus (DENV) infection and living in endemic countries/areas. One question linked to these recommendations is to determine when it is possible to start vaccination after laboratory confirmed wild-type DENV infection, and this question can be relevant to any live vaccine to be used in endemic areas. To address it, we reviewed and discussed the immunological and practical considerations of live vaccination in this context. Firstly, the nature and kinetics of immune responses triggered by primary or secondary DENV infection may positively or negatively impact subsequent live vaccine take and associated clinical benefit, depending on when vaccination is performed after infection. Secondly, regarding practical aspects, the “easiest” situation would correspond to a confirmed acute dengue fever, only requiring knowing when the patient should come back for vaccination. However, in most cases, it will not be possible to firmly establish the actual date of infection and vaccination may have to take place during well-defined periods, regardless of when prior infection occurred. Evidence that informs health authorities and medical practitioners in formulating vaccine policies and implementing vaccine programs is thus needed. The present work reviewed the different elements of the guidance and proposes some key conclusions and recommendations.
Anal Human Papillomavirus Infection among MSM Attending University in China: Implications for Vaccination
Authors: Fan Song , Li Peiyang , Ouyang Lin , Yuan Tanwei , Gong Hui , Ding Yi , Luo Zhenzhou , Wu Guohui , Yu Maohe , Zou Huachun
Published: April 2020

Men who have sex with men (MSM) attending university are a high-risk population for human papillomavirus (HPV) infection and are a neglected population of HPV vaccination programs in China. To provide evidence for HPV vaccination policies, we conducted this study to examine the prevalence and factors associated with anal HPV infection among MSM attending university in China. A self-administered online questionnaire was conducted to collect information on social demographics and sexual behaviors. A self-collected rectal swab specimen was collected to test for 37 HPV types. A total of 426 participants were tested for HPV. The median age was 20 years. HPV prevalence was 37.5% for any type, 29.8% for nine-valent vaccine types, 24.6% for four-valent vaccine types, 11.5% for HPV-16/18, and 15.7% for HPV-6/11. Men enrolled in a technical diploma, living in Northern China, having more than two sex partners, being bottom or versatile in anal sex, and having a human immunodeficiency virus (HIV) testing history were more likely to have positive anal HPV of any type. Our study found a high prevalence of anal HPV infection among MSM attending university in China, with HPV vaccine-preventable types being the most popular types in this group. Thus, our findings highlight the urgency of promoting HPV vaccination among teenage MSM.
The Exponentially Increasing Rate of Patients Infected with COVID-19 in Iran
Authors: Moftakhar Leila , Seif Mozhgan
Published: April 2020

Background: Coronavirus, the cause of severe acute respiratory syndrome (COVID-19), is rapidly spreading around the world. Since the number of corona positive patients is increasing sharply in Iran, this study aimed to forecast the number of newly infected patients in the coming days in Iran. Methods: The data used in this study were obtained from daily reports of the Iranian Ministry of Health and the datasets provided by the Johns Hopkins University including the number of new infected cases from February 19, 2020 to March 21, 2020. The autoregressive integrated moving average (ARIMA) model was applied to predict the number of patients during the next thirty days. Results: The ARIMA model forecasted an exponential increase in the number of newly detected patients. The result of this study also show that if the spreading pattern continues the same as before, the number of daily new cases would be 3574 by April 20. Conclusion: Since this disease is highly contagious, health politicians need to make decisions to prevent its spread; otherwise, even the most advanced and capable health care systems would face problems for treating all infected patients and a substantial number of deaths will become inevitable.
Efficacy of Mass Quarantine as Leverage of Health System Governance During COVID-19 Outbreak: A Mini Policy Review
Authors: Taghrir Mohammad Hossein , Akbarialiabad Hossein , Ahmadi Marzaleh Milad
Published: April 2020

On January 23, 2020, the Chinese government announced the city lockdown of Wuhan. Since then, there have been controversial debates among experts about the efficacy of mass quarantine, the oldest and probably one of the most effective methods for controlling infectious disease outbreaks. The impact of health policymaking section of health system governance becomes visible to all stakeholders and the public in such emergency contexts. The success and failure of such policies should be evaluated in order to find the proper course of action for the local and international communities. In this review, we aim to investigate the efficacy of mass quarantine in China during the coronavirus disease 2019 (COVID-19) pandemic. We found good quality evidence for the effectiveness of mass quarantine during the current stage of COVID-19 pandemic, and these strategies seem to have been highly effective in controlling the spread of the disease.
Fighting COVID-19 in Iran; Economic Challenges Ahead
Authors: Zandifar Atefeh , Badrfam Rahim
Published: April 2020

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Modelling Crude Oil Prices Volatility in India
Authors: Kathuria Khyati , Gupta Shikha , Kumar Nand
Published: April 2020

Crude oil is a crucial component of India’s energy basket after coal. The increasing demand for crude oil in India is met through imports. Crude oil price changes affect the social stability, economic development, and national security of the country. Therefore, it is crucial to devise suitable methods to forecast crude oil price movements accurately.Thus, the purpose of this study is to evaluate the forecasting performance of linear and non-linear time series models. In the study Box Jenkins methodology is used to obtain a best fit ARIMA and GARCH type models and further use it to forecast the crude oil (Brent) prices. The study shows that the crude oil price series is volatile over the time trend and therefore uses the GARCH class models as well which are capable of capturing volatility clustering typical of oil price series. Performance of ARIMA & GARCH class modes is then compared to find out which model better forecasts the crude oil prices. Indian economy being vulnerable to volatility in the international crude oil market requires a methodology to accurately forecast the price volatility and therefore to fill this gap this study for forecasting and studying the behavior of crude oil price series was conducted.
Pengaruh Latihan Multiball terhadap Keterampilan Pukulan Backhand pada Permainan Tenis Meja Ekstrakurikuler Siswa SMP Negeri 2 Tukak Sadai Kabupaten Bangka Selatan
Authors: Hidayat Rahmat , Yuanita  , Oktarina
Published: April 2020

Berdasarkan observasi cabang olahraga tenis meja ekstrakurikuler siswa SMP Negeri 2 Tukak Sadai masih banyak melakukan kesalahan dalam keterampilan pukulan backhand. Hal ini disebabkan proses latihan tenis meja yang dilakukan pelatih sangat monoton tanpa modifikasi. Tujuan yang diharapkan dari penelitian ini adalah Untuk mengetahui pengaruh latihan multiball terhadap ketrampilan pukulan backhand pada permainan tenis meja ekstrakurikuler siswa SMP Negeri 2 Tukak Sadai. Jenis penelitian yang digunakan adalah penelitian kuantitatif. Desain penelitian ekperimental yang digunakan adalah dengan bentuk desain Pretest Posttest Control Group Design dengan 1 macam perlakuan. Populasi terdiri dari 30 siswa dengan teknik pengambilan sampel yaitu menggunakan tekniksampling jenuh. Setelah semua data dianalis dengan berbagai tahapan yang dimulai dengan uji statistika untuk menentukan mean, median, modus, standar deviasi, varian dan range. Kemudian dilakukan uji normalitas data, uji homogenitas dan uji hipotesis dengan syarat thitung lebih besar dari ttabel. Berdasarkan perhitungan diketahui bahwa bahwathitung = 4,548> 2,048, maka dapat disimpulkan bahwa ha diterima, artinya bahwa terdapat pengaruh latihan multiball terhadap ketrampilan pukulan backhand pada permainan tenis meja.
Pengaruh Latihan Barrier Hops dan Knee Tuck Jump untuk Meningkatkan Tendangan Jarak Jauh (Longpass) Sekolah Sepakbola Ayoma U-16 Pedindang Kabupaten Bangka Tengah
Authors: Rizki Ade , Ulfah Widati Amalin , Oktarina Oktarina
Published: April 2020

Penelitian ini dilatarbelakangi oleh belum maksimalnya tendangan jarak jauh (long pass) pemain Sekolah Sepakbola ayoma U-16. Penelitian ini bertujuan untuk membandingakn pengaruh latihan Barrier Hops  dan Knee Tuck Jump terhadap tendangan jarak jauh (longpass) sekolah sepakbola Ayoma U-16. Jenis penelitian yang digunakan adalah penelitian kuantitatif (eksperimen). Metode yang digunakan adalah Pretest-Posttest Control Group Design. Populasi penelitian ini adalah pemain sekolah sepakbola Ayoma U-16 yang berjumlah 24 anak. Pengambilan sampel pada penelitian ini menggunakan teknik sampling sistematis yang teknik penentuan sampelnya berdasarkan jumlah populasi Instrumen yang digunakan adalah tes menendang bola jarak jauh. Setelah semua data dianalisis dengan berbagai tahapan yang dimulai dari uji statistika untuk menentukan mean, median, modus, standar deviasi, varian dan range. Kemudian dilakukan uji normalitas data, uji homogenitas dan uji hipotesis dengan syarat  > Hasil yang diperoleh yaitu, 3.233>2.074, maka dapat disimpulkan bahwa  diterima dan dapat dinyatakan bahwa terdapat pengaruh latihan Barrier Hops  dan Knee Tuck Jump yang digunakan dalam tendangan jarak jauh (longpass).
MARKET TRANSACTION MODEL OF "CANDAK KULAK" IN EMPOWERING WOMEN IN PANGGUNGDUWET RESTRICTED VILLAGE OF BLITAR DISTRICT
Authors: Farida Nurul , Suprayitno Hery
Published: April 2020

The purpose of this study is to describe the market transaction model "candak kulak" in the empowerment of women in restricted village in Panggungduwet especially those who live in rural areas. The research method uses interview, participant observation and documentation studies. Next is determination of location, building access to informants, and its implementation by collecting data, recording information, breaking content, and storing data again at the initial step. The subject of this research is the market transaction model in the form of "candak kulak" in the Panggungduwet village of Blitar Regency. Analysis that arises in restricted and underdeveloped areas, the development strategy of restricted villages in Blitar District is development in the agribusiness-based agricultural sector, because most of the population are farmers. The output of this study can provide an overview related to the market transaction model "candak kulak" in the restricted village in Panggungduwet Blitar Regency. In this effort to spur development in terms of economic and social aspects in restricted areas, the development program must prioritize three main aspects, namely alleviating poverty, improving the quality of human resources, and building infrastructure.
DUE TO LAW OF SELECTING THE RIGHT REPUDIATION CITIZENSHIP STATUS IN CITIZENSHIP LAW REVIEW OF INDONESIA
Authors: Uyun Qurrotul
Published: April 2020

Designation (naturalization) includes giving Indonesian citizenship status of one or a number of people from foreign nationals, or gives the status as a citizen of Indonesia or the number of people who do not have citizenship (stateless) .According to the laws of the Republic of Indonesia citizens who have dual citizenship must choose one of these citizenship so until he has only one nationality. For Indonesian citizens are treated when these approvals to those Indonesian nationals, according to Indonesian citizenship legislation that called "gain" or "select" nationality of the Republic of Indonesia will be replaced with Indonesian nationality, and which are called "retained" Dutch nationality or nationality of foreign countries or "reject" Indonesian nationality. So goes the Indonesian nationality, if it has lost the nationality Indonesia automatically all matters concerned with the rights and obligations of citizens or her country also erased or lost. The problem that will be discussed are: Does the right of repudiation in the process of selecting citizenship status lead to legal consequences for those concerned? Does repudiation rights used in the process of selecting citizenship status in Indonesia? By studying this research, it is expected to find out the point of problems in selecting indonesian citizenship.This research used qualitative. Since this method is a directed and systemic method. In addition, this research study used statute approach and conceptual approach. It is an approach which comes from views and doctrines that are developed in the science of law.The findings of this research are: first, as a result of law that is rejected, rejected state has no right to force someone to reject the offer, this happens because of self-will without intervension from other sides. Since, the status of citizenship related to the existence in getting right and obligation of someone in every action.  The second problem is repudiation right that is used in Indonesia by special naturalization. It means that the state is able to offer or give citizenship status by using it, and in this session, the citizen has right to receive or reject that offer.
REPERCUSSÕES EMOCIONAIS E SOCIAIS DO DIAGNÓSTICO E DO TRATAMENTO DE CÂNCER MAMA: UM ESTUDO TRANSVERSAL
Authors: Araújo dos Santos Medeiros Washingtonia , Thalita Pereira Rego Izaylene , Rennaly Alves de Oliveira Rayssa , Fernanda Souto Nóbrega Waleska , Anne Lima Gomes Kedma
Published: April 2020

OBJETIVO: Investigar os impactos emocionais e sociais percebidos pelas mulheres em relação ao recebimento do diagnóstico de câncer de mama e às consequências do tratamento. MÉTODO: Estudo transversal, descritivo e de cunho quanti-qualitativo, realizado com 15 mulheres no Hospital da FAP, sendo aplicados os critérios de Saturação Teórica e Análise do Conteúdo de Bardin. Foram empregados um questionário sociodemográfico e clínico, além de uma entrevista semi-estruturada. RESULTADOS: A média de idade foi 55 (±11,05) anos. A maioria das mulheres entrevistadas eram casadas (66,67%), tinham ensino fundamental (40%), residiam em Campina Grande e região (75%), eram cristãs (100%) e apresentavam tempo de diagnóstico superior a 12 meses (66,66%). O tipo mais comum foi o carcinoma ductal invasivo (33,33%) e o subtipo molecular mais prevalente foi o Luminal B (53,3%) e a média do tamanho do tumor de 1,6 (±0,69) cm. 11 mulheres (73,33%) realizaram mastectomia, todas se submeteram à quimioterapia e 6 (40%) à radioterapia. As falas geraram as seguintes categorias: a tristeza diante do diagnóstico de câncer de mama; o diagnóstico de câncer de mama como sentença de morte; a figura divina como alicerce; o apoio da família e dos amigos; a ressignificação dos hábitos e das atividades diárias; a imunidade como fator determinante para o autocuidado. CONCLUSÃO: Foram evidenciadas experiências de surpresa e tensão, as quais redefiniram relacionamentos e rotinas diárias, além de da recorrência à religiosidade. Palavras chave: Neoplasias da mama. Ajustamento emocional. Diagnóstico.
VIOLÊNCIA FINANCEIRA CONTRA IDOSOS NO ÂMBITO FAMILIAR: UMA REVISÃO INTEGRATIVA
Authors: Patricia do Egito Cavalcanti de Farias Ana , Lêda Oliveira Silva Antônia , Leite Costa Andrade Priscilla , Antão de Medeiros Robson , Bezerra de Queiroz Ronaldo , Helena Dantas Sabine
Published: April 2020

OBJETIVO: Analisar a produção científica da violência financeira sofrida pelos idosos de forma a identificar a prevalência e as principais causas. MÉTODO: Trata-se de uma revisão integrativa da literatura, cuja busca foi realizada nos indexadores LILACS, MEDLINE e Scopus. Foram analisados 8 artigos que demonstraram a ocorrência de violência financeira contra o idoso. RESULTADOS: O gênero da maioria das vítimas de violência familiar foi composta pelo sexo feminino. Evidenciaram que os problemas de âmbito social e econômico influenciam certamente a relação entre vítima e agressor. No entanto, os dados referentes à denúncia corroboram o fato de que o idoso não faz queixa do próprio cônjuge, filho ou neto, justificado pelo número bastante inferior de vítimas que realmente denuncia o ato. Verificou-se muitas vezes, sentimentos de inibição, vergonha, medo e subnotificação desses casos. Na maioria dos artigos, a violência financeira ocorre juntamente com outros tipos de violência, principalmente a psicológica. CONCLUSÃO: Faz-se necessário voltar à atenção para esta temática tão relevante que acomete a população idosa. O estudo comprovou que trata-se de um problema que afeta o bem-estar físico, emocional, social e financeiro do idoso.

Palavras chave: Idoso; Família; Violência.
Brincando e aprendendo
Authors: Brito Stéphany Vieira , Dias Marcela Brandão , Ramos Isabela Almeida , Pereira Raiane Maiara dos Santos , Fontes Eduardo Bodnariuc , Campbell Carmen Silva Grubert
Published: April 2020

A motricidade e a ludicidade são elementos essenciais no desenvolvimento integral de crianças. Este estudo investigou a influência de aulas lúdicas de educação física integradas ao conteúdo escolar sobre o desempenho escolar e a percepção (relato) dos pais e professoras sobre o comportamento de crianças. Durante três meses, crianças com baixo desempenho escolar receberam aulas de reforço com jogos e brincadeiras integrando o conteudo básico das disciplinas escolares. Foi observado melhora na leitura e no desempenho escolar geral, assim como, pais e professores relataram que as crianças se tornaram mais comunicativas, atentas e prestativas.
HUBUNGAN HIPERTENSI DENGAN GANGGUAN PENDENGARAN SENSORINEURAL PADA PASIEN RAWAT JALAN DI POLIKLINIK TELINGA HIDUNG TENGGOROKAN DI RSUD PROVINSI NTB TAHUN 2014-2017
Authors: Dewi Ade Yasinta , Hikmallah M. Nurman , Utami Sukandriani
Published: April 2020

Hearing loss may be conductive hearing loss and sensorineural hearing loss. All cases of hearing loss, 90% are sensorineural hearing loss. The most risk of sensorineural hearing loss are the intensity of noise, age, and history of hypertension disease. Studies show that hypertension causes sensorineural hearing loss. this study is an analytical observational with cross sectional study plan. The sample was covering 96 respondents, consisting of 48 sensorineural hearing loss patients and 48 non-sensorineural hearing loss patients. The study was done using patient medical records at the Ear-Nose-Throat Policlinic of NTB province hospital from 2014 to 2017. Data analysis was performed by contingency coefficient corellation test. The analysis result was significant value p = 0,000 < p (0,05) which showed their significance or correlation of the conducted study. There is a significant correlation between hypertension and sensorineural hearing loss.