bluuebunny/crossref_metadata_2025 huggingface dataset:
Geometrical analysis of elliptical journal bearings and its effects on friction and load capacity
Authors: Ebrahimi Ali , Akbarzadeh Saleh , Moosavi Hassan
Published: August 2019

Elliptical bearings are one type of non-circular journal bearings which has two main advantages over the conventional circular bearings: lower temperature rise and lower vibrations. In this study, the energy equation and Reynolds equation are simultaneously solved under adiabatic boundary conditions. The predicted pressure and temperature are compared to the results of published literature for verification purposes. A parametric study is then conducted on the effect of geometrical parameters of the elliptical journal bearing on the load capacity, friction force, pressure, and oil temperature. Effect of geometric parameters of the bearing on the performance is studied. The results show that non-circularity parameter is the most influential parameter in the bearing, and an increase in the non-circularity results in the decrease in maximum pressure and temperature as well as the friction force. Increasing the eccentricity ratio, on the other hand, will cause an increase in the pressure, temperature, and the friction force. Changes in the angle between the major axis of the bearing and load direction decrease the load-carrying capacity and the non-dimensional pressure and results in an increase in the friction coefficient.
Analysis of harmonic vibration synchronization for a nonlinear vibrating system with hysteresis force
Authors: Zhang Nan , Wu Shiling
Published: August 2019

Harmonic vibration synchronization of the two excited motors is an important factor affecting the performance of the nonlinear vibration system driven by the two excited motors. From the point of view of the hysteresis force, the nonlinear dynamic models of the nonlinear vibration system driven by the two excited motors are presented for the analysis of the hysteresis force with the asymmetry. An approximate periodic solution for the nonlinear vibration system with the hysteresis force is investigated using the nonlinear models. The condition of harmonic vibration synchronization is theoretically analyzed using the rotor–rotation equations of the two excited motors in the nonlinear dynamic models and the stability condition of harmonic vibration synchronization also is theoretically analyzed using Jacobi matrix of the phase difference equation of two excited motors. Using Matlab/Simlink, harmonic vibration synchronization of the two excited motors and the stability of harmonic vibration synchronization for the nonlinear vibration system with the hysteresis force are analyzed through the selected parameters. Various synchronous processes of the nonlinear vibration system with the hysteresis force are obtained through the difference rates of the two excited motors (including the initial phase difference, the initial rotational speed difference, the difference of the motors parameters). It has been shown that the research results can provide theoretical basis for the design and research of the vibration system driven by the two-excited motors.
Identity, self and other: The emergence of police and victim/survivor identities in domestic violence narratives
Authors: Andrus Jennifer
Published: August 2019

This article analyzes narratives about encounters between police officers and domestic violence victim/survivors in the context of domestic violence calls. Narratives are sites in which individuals create relationships between themselves and others, oriented around a set of unfolding events. Narrative is a motivated, engaged retelling of prior or anticipated events produced in interaction with others, in a particular context stocked with constraints and affordances. In the process of telling stories, identities emerge. In order to understand the relationship between narrative and identity, I analyze stories told about police interactions with domestic violence victim/survivors from the perspectives of both the police and the victim/survivors. Working empirically with a data set of 48 interviews, I use critical discourse analysis and discourse analysis to analyze the ways both groups narrate domestic violence and confrontations with police officers, the ways they create story worlds stocked with characters, the ways story characters are formed and deployed, and the ways those characters are positioned against/with/by the storyteller, allowing the storyteller’s identity to emerge. This article is an analysis of the relationship between the storyteller and the story world and the storyteller’s process of constructing an/other in order to position in relation to that other. Ultimately, I argue that identity emerges for the storyteller in the way she or he constructs characters in a story and then positions in relation to those characters.
Proposing a Post-heritage Critical Framework: The Crown, Ambiguity, and Media Self-consciousness
Authors: Abbiss Will Stanford
Published: August 2019

This article proposes a new critical framework through which to analyze television period drama, recognizing elements that indicate a more progressive point of view than many previous scholarly responses have acknowledged. It begins by assessing the seminal works of Andrew Higson and Claire Monk in the field of period drama, adopting the latter’s term of “post-heritage” to identify an alternative critical perspective. The five guiding elements of the proposed post-heritage framework are then outlined, with reference to pertinent critical works that identify these in period dramas and other production. A preliminary case study of The Crown is then offered, through which the post-heritage framework is demonstrated as an aesthetic methodological process. The Crown’s use of the media within its narrative and conceptual ambiguity are considered particularly closely. The article concludes by suggesting the wider applications for the post-heritage critical framework, and potential further study relating to The Crown.
Zeolite and short-cut fiber-based wet-laid filter media for particles and heavy metal ion removal of wastewater
Authors: Sun Kyung Chul , Noh Jung Woo , Choi Yeong Og , Jeong Sung Hoon , Kim Yeon Sang
Published: August 2019

As development of industrialization grows constantly, the purification of hazardous solid particles and ions is one of the most important topics in environment and ecosystem. In this report, we designed and developed a novel and advanced type of filter media for the removal of both solid particles and hazardous ions, we choose Cs+ and Ca2+ here, by enclosing zeolite in wet-laid nonwoven media. The performance of the prepared filter media was evaluated by continuous sorption experiments, which were followed by solid particles and ion-removal efficiency studies. The prepared filter media showed excellent uniformity. The prepared filter media exhibited a solid removal efficiency rate which ranged from 80 to 82%, and the initial removal efficiency of ions exceeded 99%. These values are in effect as the main layer in the completed liquid filter media and for the next step to prepare the completed multi-layered liquid filter units. The results here suggest that this novel filter media can be used in high-efficiency and multi-functional liquid filter units for residential and industrial engineering.
Data cache optimization model based on cyclic genetic ant colony algorithm in edge computing environment
Authors: Wang Danyue , An Xingshuo , Zhou Xianwei , Lü Xing
Published: August 2019

Edge computing has recently emerged as an important paradigm to bring filtering, processing, and caching resources to the edge of networks. However, with the increasing popularity of augmented reality and virtual reality application, user requirements on data access speed have increased. Since the edge node has limited cache space, efficient data caching model is needed to improve the performance of edge computing. We propose a multi-objective optimization data caching model in the edge computing environment using data access counts, data access frequency, and data size as optimization goals. Our model differs from previous data caching schemes that focused only on data access counts or data size. In addition, a cyclic genetic ant algorithm is proposed to solve the multi-objective optimization data caching model. We compare the following three performance indicators: cache hit ratio, average response speed, and bandwidth cost. Simulation results show that the model can improve the cache hit ratio and reduce the response latency and the bandwidth cost.
Single-Arm 8-Week Ad Libitum Self-Prepared Paleo Diet Reduces Cardiometabolic Disease Risk Factors in Overweight Adults
Authors: Markofski Melissa M. , Jennings Kristofer , Dolan Chad , Davies Natalie A. , LaVoy Emily C. , Ryan Edward J. , Carrillo Andres E.
Published: August 2019

The paleo diet is popular among the general population due to promoted weight loss and disease prevention benefits. We examined the effectiveness of a self-administered paleo diet in improving cardiometabolic disease risk factors. Overweight, physically inactive but otherwise healthy adults (males = 4, females = 3, age 32.7 ± 4.9 years, body mass index [BMI] 29.4 ± 2.4 kg/m2) habitually eating a traditional Western diet (1853.4 ± 441.2 kcal; 34.0% carbohydrate; 41.4% fat; 19.2% protein) completed an ad libitum self-administered paleo diet for 8 weeks. Height, weight, blood pressure, and a fasting blood sample were collected pre– and post–paleo dietary intervention. Blood samples were analyzed for fasting cardiometabolic disease biomarkers—including brain-derived neurotropic factor (BDNF), fibroblast growth factor (FGF) 21, and leptin. After 8 weeks, body mass (−5.3 kg, P = .008), BMI (−1.7 kg/m2, P = .002), serum leptin (−56.2%, P = .012), serum FGF21 (−26.7%, P = .002), and serum BDNF (−25.8%, P = .045) significantly decreased. Systolic and diastolic blood pressure were unchanged following the paleo dietary intervention ( P > .05). Average energy intake (−412.6 kcal, P = .016) significantly decreased with the paleo dietary intervention mostly due to a reduction in carbohydrate consumption (−69.2 g; P = .003). An 8-week self-administered paleo dietary intervention was effective in improving cardiometabolic disease risk factors in a healthy, physically inactive overweight adult population.
Creep behavior and cavitation evolution of 15CrMoG steel at high temperatures
Authors: Pan Jingping , Tu Shuheng , Zhu Xinwei , Tan Lianjiang
Published: August 2019

15CrMoG steel is a type of heat-resistant steel frequently used in boiler and piping systems. Creep properties of the 15CrMoG steel at service temperatures are not much documented due to the difficulties in obtaining long-term creep data. Herein, the creep behavior and the cavity evolution of 15CrMoG steel were investigated based on 20,000 h of creep tests at varied temperatures. Creep curves were analyzed to elucidate the creep behavior and creep rupture mechanism of the 15CrMoG steel. A continuum damage model was adopted to fit the rupture stress versus creep time data, and the results showed the reliability of this model in describing the creep behavior and predicting the creep life. The creep rupture stress at 20,000 h decreased significantly with the increase in the temperature in the tested temperature range. The cavitation in the 15CrMoG steel samples occurring during the creep tests was also examined by microscopic analysis, the results of which confirmed that the cavitation evolution is responsible for the reduced mechanical performance and finally creep rupture of the steel. This work provides valuable high-temperature creep data of the 15CrMoG heat-resistant steel and insights into evaluation and prediction of long-term creep behavior at high temperatures.
Innate immunity of surfactant protein A in experimental otitis media
Authors: Abdel-Razek Osama , Ni Lan , Yang Fengyong , Wang Guirong
Published: August 2019

Surfactant protein A (SP-A) plays an important role in innate immune response and host defense against various microorganisms through opsonization and complement activation. To investigate the role of SP-A in non-typeable Haemophilus influenzae (NTHi)-induced acute otitis media, this study used wild type C57BL/6 (WT) and SP-A knockout (KO) mice. We divided mice into an infection group in which the middle ear (ME) was injected with NTHi and a control group that received the same treatment using normal saline. Mice were sacrificed on d 1, 3, and 7 after treatment. Temporal bone samples were fixed for histological, cellular, and molecular analyses. Ear washing fluid (EWF) was collected for culture and analyses of pro-inflammatory cytokines and inflammatory cells. SP-A-mediated bacterial aggregation and killing and phagocytosis by macrophages were studied in vitro. SP-A expression was detected in the ME and Eustachian tube mucosa of WT mice but not KO mice. After infection, KO mice showed more severe inflammation evidenced by increased ME mucosal thickness and inflammatory cell infiltration and higher NF-κB activation compared to WT mice. The levels of IL-6 and IL-1β in the EWF of infected KO mice were higher compared to infected WT mice on d 1. Our studies demonstrated that SP-A mediated NTHi aggregation and killing and enhanced bacterial phagocytosis by macrophages in vitro and modulated inflammation of the ME in otitis media in vivo.
Enjeux de la planification publique participative d’un Plan régional de promotion de la santé dans le contexte institutionnel belge
Authors: Coppieters Yves , Scheen Bénédicte
Published: August 2019

Définir un cadre de prévention et de promotion de la santé est un enjeu majeur par la Région wallonne qui a hérité depuis 2014 de ces compétences. Une première partie d’un Plan Prévention et Promotion de la Santé a été élaborée en 2017, permettant de définir les priorités régionales en santé. L’objectif de cet article est de présenter le processus de construction pour ses composantes opérationnelles et de discuter des enjeux de l’implémentation d’un tel cadre d’action sur un plan politique et de démarche participative. En prenant appui sur la première partie du Plan, l’administration régionale a identifié 11 groupes de travail thématiques qui ont rassemblé plus de 150 partenaires. Un guide méthodologique développe les chaines « objectifs de santé-objectifs spécifiques-actions » désirées, le cadre de priorisation des actions basé sur des critères de pertinence, de cohérence et de faisabilité ainsi que sur la prise en compte d’objectifs plus transversaux. Le Plan opérationnel repose sur des valeurs et des principes qui constituent les fondements des pratiques des acteurs. La proposition de programmation est structurée en 6 axes qui comportent un complément au diagnostic de situation, des principes d’intervention et une programmation opérationnelle. Il a aussi été élaboré un cadre d’implémentation, de gestion et de suivi, d’évaluation et de mise à jour du Plan.

Le temps politique n’est pas le même que le temps nécessaire à une planification de qualité. Ce travail de programmation, basé sur des dimensions participatives, a été incomplet de par les limites du processus qui ont influencé les contenus. Bien que les propositions soient en majorité issues d’actions existantes, il faut souligner que les participants ont vu dans le Plan l’opportunité d’innover et de pallier certains manques ressentis actuellement en Wallonie en termes de prévention et de promotion de la santé.
Are Patients With Type 2 Diabetes Not Aware or Are They Unable to Practice Self-Care? A Qualitative Study in Rural South India
Authors: Anitha Rani M. , Shriraam Vanishree
Published: August 2019

Background: Lack of awareness and poor adherence to dietary, lifestyle modifications, and medications among patients with diabetes result in poor health outcomes. Aim: This study aimed to understand patients’ perceptions about barriers to self-management of diabetes. Materials and Methods: This was a descriptive qualitative study among patients with diabetes attending a rural health center. Five focus group discussions were conducted with 8 to 11 participants using a topic guide. Results: Many were unaware of target levels and complications of diabetes. Some aspects of the dietary information were found to be quite confusing. Physical constraints prevented many from going for outdoor walking. They have not received any information on foot care. Conclusions: Understanding the barriers for self-care will help health care workers manage diabetes better.
Implications of Indian Philosophy and Mind Management for Agency Conflicts and Leadership: A Conceptual Framework
Authors: Pande Anadi S. , Kumar Ranjan
Published: August 2019

The unceasing stream of corporate scams and financial misdemeanours establish that agency conflicts are a stark reality of the contractual relationship between principals and agents. Agency theory identifies four sources of agency conflicts at the leadership level: moral hazard, earnings retention, risk aversion and time horizon. The theory proposes an outcome- and/or behaviour oriented mitigating mechanism based on agency costs. However, as the real-world evidence shows, these mechanisms have been only partially effective.

In this context, the present study conducts a diagnosis of agency conflicts at the leadership level, trying to understand its origin, sources, mitigating mechanism and its limitations. The paper then takes a novel approach for bridging the gap between the current state of conflicts and the desired state of absence from conflicts, by examining Indian philosophical systems. It identifies the characteristics of Indian philosophy rooted in the Vedic wisdom as integrative, holistic, stressing on a direct experience of vision of the truth, emphasising practicality, and promoting the goal of self-realization through mind management. The paper then leverages the pithy aphorisms ( sutras) from Indian philosophical texts to develop a mind management framework as a tool to mitigate agency conflicts.
Indian Consumers’ Assessment of ‘Luxuriousness’: A Comparison of Indian and Western Luxury Brands
Authors: Devanathan Sangeeta
Published: August 2019

The concept of luxury is relative in nature and the perceived luxuriousness of a brand is influenced by a number of subjectivities.

In the Indian context, the history of colonization and the dominance of Western cultures for the past many decades have created a preference for luxury brands of Western origin, which is reflected in the perceptions of luxuriousness of the brand. However, the ‘Westernization’ of the Indian society is intertwined with a milieu of traditions and cultures which are strongly embedded in ‘Indian-ness’, where, consumptions linked to the Indian cultural traditions and celebrations create a distinction between products that have their origins in Indian culture versus those that stemmed from the Western world.

This study compares the perceived luxuriousness of Western brands (LV and Hermes) to Indian luxury brands (Sabyasachi and AND) and examines the effect of the cultural origins of a product in the context women’s fashion, where a saree is seen as a product that originates from Indian culture, vis-à-vis evening dresses, which are perceived as a primarily Western concept.

The results of the study reveal that though the perceived luxuriousness of Western brands is higher than those of Indian origin, there is a clear moderating effect of the cultural origin of the product. Western brands attempting to occupy the luxury space in products which have their cultural origins in India (example Hermes marketing sarees) are perceived as being less luxurious than Indian brands present in the same product category (Sabyasachi sarees). The reverse was also found to be true, where Indian luxury brands attempting to create a space for themselves in products which are considered to be of Western origins were perceived to be less luxurious than brands their Western counterparts.
Trends in Academic Dentistry and Oral Health Research Funding by Gender
Authors: Garcia M.N. , Tiano J.P. , Contreras O. , Hildebolt C.F. , Horsford J. , Stewart D.
Published: August 2019

Introduction:

Dental and oral health researchers compose a small share of the research workforce, and within this group female researchers form a much smaller share than male researchers. Additionally, a majority of full-time faculty appointments at dental schools are held by men, with women making up only 39% of full-time appointments. These factors suggest that there could be disparities between men and women in obtaining research funding.

Objective:

The focus of our study was to determine whether there are gender differences in award funding obtained from the National Institute of Dental and Craniofacial Research or the National Institutes of Health (NIH).

Methods:

NIH administrative data were analyzed by focusing on Research Project Grants (RPGs), the primary and most commonly used mechanism to support investigator-initiated research projects. Analyses involved 1 or 2 of the following variables: number of unique applicants or awardees, fiscal years 2007 to 2016, average age of unique applicants, awardee’s degrees, awardee’s age at first R01, and award rates.

Results:

About two-thirds of RPG applicants and awardees were men. Although there were significantly more male applicants and awardees, there was no significant difference in award rate by gender, and there was no significant award rate variation through time or by degrees. The average ages of RPG applicants were similar for genders for all degrees, except that male dentists and PhD-dentists applying to the National Institute of Dental and Craniofacial Research were older and male MDs and PhD-dentists from dental schools applying to the NIH were older.

Conclusions:

This study demonstrated that men in the dental/oral health workforce submit more applications and receive more NIH awards than do women; however, there was no difference in award rates between women and men and no difference in ages by gender at which the first R01 awards are received.

Knowledge Transfer Statement:

Analyses of the implications of this study by the academic dentistry and oral health community could lead to establishing opportunities to expand the representation of women in dental and oral health research. Increasing the number of applications submitted by women may help achieve an equitable balance of grantees in the workforce.
Fully developed magnetohydrodynamics natural convection flow in a vertical micro-porous-channel with Hall effects
Authors: Jha Basant Kumar , Malgwi Peter Bukar , Aina Babatunde
Published: August 2019

An exact solution is presented for the steady hydromagnetic fully developed natural convection flow in a vertical microporous channel due to asymmetric heating. The governing momentum and energy equations are presented in dimensionless form and solved analytically using the method of undetermined coefficient. The effects of Hall current and suction/injection parameters on the primary and secondary velocity, volume flow rates, and skin frictions are discussed with the help of line graphs and tables. It is observed that injection accelerates the flow, whereas suction retards the flow in both the primary and secondary flow directions.
Opaque ancient K2O–PbO–SiO2 glass of the Southern Song Dynasty with fluorite dendrites and its fabrication
Authors: Zhou Yihang , Jin Yuewen , Wang Kai , Sun Jian , Cui Yong , Hu Dongbo
Published: August 2019

Here we first report a piece of K2O–PbO–SiO2 ancient glass opacified by fluorite dendrites with archaeological background. This piece of glass was excavated from Nanhai I shipwreck, a merchant ship once heading for Southeast Asia, but sinking near Yangjiang, Guangdong province. Analysis of scanning electron microscopy with energy dispersive spectroscopy, X-ray diffraction and Raman spectroscopy were used to identify the glass matrix and the fluorite dendritic crystals within it. The elemental feature is consistent with the prevailing K2O–PbO–SiO2 glass system during Tang and Song Dynasties. However, the presence of fluorite dendrites with almost no Na, Al and P elements strongly suggests an astonishing conclusion that the fluorite has already been used as an opacifying agent around 800 years ago. Moreover, through replication of glass samples with similar compositions to the ancient one, it is suggested that fluorite dendrites with a similar size can be obtained when fired at around 1000–1050 °C and cooled within the furnace. On the basis of different crystal growth outcomes of two cooling strategies and the presence of the large undisturbed dendrite, it is inferred that the original glass vessel was probably made though die-casting instead of blowing technique.
Primeiro relato de Aetalion reticulatum (L.) (Hemiptera: Aetalionidae) infestando plantas de noni [Morinda citrifolia L. (Rubiaceae)]
Authors: De Castro Marcelo Tavares , Montalvão Sandro Coelho Linhares
Published: August 2019

Resumo. Aetalion reticulatum (L.) (Hemiptera: Aetalionidae), uma cigarrinha altamente polífaga e reconhecidamente praga de várias culturas agrícolas e florestais, é relatada pela primeira vez infestando plantas de noni, Morinda citrifolia L. (Gentianales: Rubiaceae), em Brasília, Distrito Federal, Brasil. Esse novo registro aumenta a lista de hospedeiras do inseto, reforçando a necessidade de estudos mais aprofundados sobre essa cigarrinha e o seu controle.First report of Aetalion reticulatum (L.) (Hemiptera: Aetalionidae) infesting plants of noni [Morinda citrifolia L. (Rubiaceae)]Abstract. Aetalion reticulatum (L.) (Hemiptera: Aetalionidae), a highly polyphagous leafhooper and known to be pest of various agricultural and forestry crops, is reported for the first-time infesting noni plants, Morinda citrifolia L. (Gentianales: Rubiaceae), in Brasília, Federal District, Brazil. This new record increases the host’s list of this insect, reinforcing the necessity for more in-depth studies of this leafhooper and its control.
Primeiro registro de Anthonomus tomentosus (Faust) (Coleoptera: Curculionidae) na Amazônia Oriental
Authors: Adaime Ricardo , Almeida Rildo Pessoa , Pereira José Francisco , Marsaro Júnior Alberto Luiz , Rosado-Neto Germano Henrique
Published: August 2019

Resumo. Anthonomus tomentosus (Faust) (Coleoptera: Curculionidae) é registrado pela primeira vez na Amazônia Oriental, a partir de frutos de Malpighia emarginata DC. coletados no estado do Amapá, Brasil. Neste trabalho também são apresentados sinas de danos aos frutos e a distribuição geográfica de A. tomentosus no Brasil.First record of Anthonomus tomentosus (Faust) (Coleoptera: Curculionidae) in the Eastern AmazonAbstract. Anthonomus tomentosus (Faust) (Coleoptera: Curculionidae) is recorded for the first time in the Eastern Amazon, from fruits of Malpighia emarginata DC. collected in the state of Amapá, Brazil. In this work we also present the signals damages on the fruits and the geographical distribution of A. tomentosus in Brazil.
Cooling and freezing effects on development of flies of forensic importance
Authors: Carriço Cesar , Caetano Rebecca Leal , Barbosa Júlio Vianna , Pinto Zeneida Teixeira
Published: August 2019

Abstract. Cooling and freezing experiments were carried out at Oswaldo Cruz Foundation (Fiocruz / RJ). Flies colonies were established from specimens collected at the campus using a baited trap, as described for the species: Chrysomya putoria (Wiedemann), Chrysomya megacephala (Fabricius), Lucilia cuprina (Wiedemann), Musca domestica Linnaeus, Peckia ruficornis (Fabricius) and Peckia chrysostoma (Wiedemann). Prolonged exposures at lethal low temperatures can produce deleterious effects (including death) even if the insect does not freeze; during long-term exposure to low temperatures, the organisms may finally die from the exhaustion of energy reserves.Efeitos do resfriamento e congelamento no desenvolvimento de moscas de importância forenseResumo. Experimentos de resfriamento e congelamento foram realizados na Fundação Oswaldo Cruz (Fiocruz / RJ). Colônias de moscas foram estabelecidas a partir de espécimes coletados no campus usando uma armadilha com isca, conforme descrito para as espécies: Chrysomya putoria (Wiedemann), Chrysomya megacephala (Fabricius), Lucilia cuprina (Wiedemann), Musca domestica Linnaeus, Peckia ruficornis (Fabricius) e Peckia chrysostoma (Wiedemann). Exposições prolongadas em baixas temperaturas podem produzir efeitos deletérios (incluindo morte) mesmo se o inseto não congelar; durante a exposição prolongada a baixas temperaturas, os organismos podem morrer pelo esgotamento das reservas de energia.
Notes on Aethina tumida Murray (Coleoptera: Nitidulidae) in an apiary in the state of Rio de Janeiro
Authors: Pereira Sérgio Nogueira , Gottschalk Susana , Palmeira Jorge  Luiz T. , Paulino Junio M. , Antunes Rosa Maria , Boechat Roosevelt M. A. , Silva Junior Virgínio Pereira da , Moraes Paulo Henrique P. de , Alves Luis Henrique Soares , Prezoto Fábio
Published: August 2019

Abstract. We record, for the first time, the presence of Aethina tumida Murray (Coleoptera: Nitidulidae) in the Rio de Janeiro state, in an apiary constituted by 36 honeybee hives Apis mellifera L. No eggs or larvae of A. tumida were found, only adults. Since this is the second Brazilian state to record an infestation of small hive beetles, the responsible institutions and beekeepers on each federative unit must stay aware of this in order to prevent or retard their spreading.Notas sobre Aethina tumida Murray (Coleoptera: Nitidulidae) em apiário no estado do Rio de JaneiroResumo. Foi notificada pela primeira vez a presença de Aethina tumida Murray (Coleoptera: Nitidulidade) no estado do Rio de Janeiro em um apiário formado por 36 colmeias de abelhas Apis mellifera L. Não foi constatado presença de ovos ou larvas de A. tumida, somente adultos. Por ser o segundo estado do país a relatar ocorrência de uma espécie exótica considerada uma praga em criações de abelhas do gênero Apis em outros países e por deter pouco conhecimento sobre o impacto desse invasor na apicultura nacional, os órgãos competentes em cada unidade federativa deverão ficar atentos e montar estratégias de prevenção e vigilância, a fim controlar e/ou erradicar A. tumida em solo brasileiro.
Percevejos-de-renda (Hemiptera: Tingidae) associados ao cultivo da mandioca na terra indígena Kaxinawá de Nova Olinda, Acre, com novo registro para o Brasil
Authors: Santos Rodrigo Souza , Coelho Luci Boa Nova , Wengrat Ana Paula Gonçalves da Silva
Published: August 2019

Resumo. O cultivo da mandioca tem importância socioeconômica e de subsistência na região Norte do Brasil, sendo uma prática adotada principalmente em pequenas propriedades, por comunidades tradicionais, agricultores familiares e indígenas. Foi verificada a presença de colônias de percevejos-de-renda em plantios de mandioca localizados na terra indígena Kaxinawá de Nova Olinda, Feijó, estado do Acre. Os insetos foram capturados diretamente nas plantas, sendo identificadas as espécies Vatiga manihotae (Drake), Vatiga illudens (Drake) e Gargaphia opima Drake. Configuram-se os primeiros registros de V. manihotae, V. illudens e G. opima no estado do Acre, sendo esta última, o primeiro registro para o Brasil.Lace bugs (Hemiptera: Tingidae) associated with cassava cultivation in Nova Olinda’s Kaxinawá indigenous land, in Acre state, with new record for BrazilAbstract. Cassava cultivation has socioeconomic and subsistence importance in the northern region of Brazil, being a practice mainly adopted in small farms, by traditional communities, family farmers and indigenous people. It was verified the presence of colonies of lace bugs in cassava cultivation located in Nova Olinda’s Kaxinawá indigenous land, municipality of Feijó, Acre state, Brazil. The insects were captured directly in the plants, being identified the species Vatiga manihotae (Drake), Vatiga illudens (Drake) and Gargaphia opima Drake. Therefore, the occurrence of V. manihotae, V. illudens and G. opima in Acre state is recorded for the first time. In addition, G. opima is the first record for Brazil.
Improving the Cauchy–Schwarz Inequality
Authors: Bhattacharyya Kamal
Published: August 2019

We highlight overlap as one of the simplest inequalities in linear space that yields a number of useful results. One obtains the Cauchy–Schwarz inequality as a special case. More importantly, a variant of it is seen to work desirably in certain singular situations where the celebrated inequality appears to be useless. The basic tenet generates a few other interesting relations, including the improvements over certain common uncertainty bounds. Role of projection operators in modifying the Cauchy–Schwarz relation is noted. Selected applications reveal the efficacy.Quanta 2019; 8: 36-43.
Developing English for Specific Purposes (ESP) Module for Computer Science Students Vocabulary Mastery
Authors: Kusumawati Fitri Palupi
Published: August 2019

Abstract :This research development aimed to develop as a learning media of  Module to students of Compter Science, to determine the feasibility of Module which is developed as a learning media using the assessment from the experts, and to determine the students’ response to media esp Module in improving Vocabulary Mastery. Research and Development (R&D) used in this study was conducted using the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation).  The results obtained from 5 phases include Analysis, Design, Development, Implementation, and Evaluation. Assessing the feasibility of Module showed the following: 1) The material experts and the lecturer of Computer Science gave percentage of 69,63% in the range 66.67% <p~ ≤ 80% which means developed media gets “B” score and the category is “GOOD”. 2)The media experts and the lecturer of Computer Science gave percentage of 75,3% in the range 66.67% <p~ ≤ 80% which means developed media gets “B” score and the category is “GOOD”. 3) questionnaire response that has been filled by the students of Computer Science obtained a total number is 2034 and percentage 69,63% which lies in the range 60<P≤80%, module got the “B” value the category is “positive”. 4) The students’ response to media esp module in improving Vocabulary Mastery at Computer Science was gotten from the interview, The results of interviews to the students’ as a whole showed a good response to the use of module learning media in the learning process of Computer Science.  Therefore, the researcher can conclude that the module for Computer Science is applicable and can be used as instructional media to teach English in the class.
An Analysis of Domain Mood and Modality of Interpersonal Meaning in Susilo Bambang Yudhoyono (SBY)’s Speech
Authors: Amalia Mustika , Subandowo Dedy , Faliyanti Eva , Thresia Fenny
Published: August 2019

This research examines the interpersonal meaning in Susilo Bambang Yudhoyono (SBY)’s speech. This is based on the details of speech or writing to define an investigation. The object of this research is the used moods and modality types in interpersonal meaning of SBY’s speech under the title “Toward Harmony among Civilizations” by Dr.Susilo Bambang Yudhoyono. The aims of this research are (1) to observe the mood and modality types used in SBY’s speech, (2) to observe the dominant mood and modality types in SBY’s speech, (3) to describe the interpersonal meaning in case of mood and modality types in SBY’s speech. The main sources of data in this study are taken from the SBY’s speech at the John F. Kennedy School of Government Harvard University summit on September 29 th, 2009, in Boston, USA. The data then are classified and collected in tabulation. This paper is based on the discourse analysis and systemic functional linguistics approach by Halliday. The writer analyses the speeh by SBY mainly from the interpersonal meaning which focuses on the mood and modality types. The results of this research are (1) there are two mood types in interpersonal meaning of SBY’s speech namely indicative and imperative type, (2) the dominant mood in SBY’s speech is the indicative type which is declarative with the total number of 97 clauses or around 95%, while the dominantly used modality is “can”. In addition, the overall dominant modality type exists in median degree modality with the total percentage 40,6%, and (3) the researcher discovers the different mood and modality that might affect the value of the speech to the audience.
Apology Strategies in Harry Potter Movie Series
Authors: Nisa Intan Khairu , Sutrisno Adi
Published: August 2019

Apology is an inevitable part of human communication as an act of face-saving strategy. It is necessarily uttered if an offense is made. This research is an attempt to reveal the apology strategies used as well as to analyze the influence of social distance and relative power to the realization of apology strategies,  as seen in Harry Potter and the Order of the Phoenix, Harry Potter and the Half Blood Prince, and Harry Potter and the Deathly Hallows Part 1 and 2. In total, there are 125 data found and those are classified according the apology strategy employed. The result shows that the majority of the speakers employ indirect apology strategy ‘Explanation or Account of Cause’ to apologize. Furthermore, this research also found that social distance and relative power are taken into account during the apology process and they affect the linguistic realization of apology strategies in the movies.
Old but Gold: The Use of Picture Cues to Teach Writing (An Experimental Research)
Authors: Soviyah Soviyah , Purwaningtias Yunia
Published: August 2019

Pictures use in an educational setting fits the idiom: old but gold. There have been plenty of studies revealing how good the use of pictures in the classrooms is. Pictures have been long known to have the ability to help motivate, demonstrate, and instruct the students during a learning process. This study is a sort of complement to the phenomenon as it focuses on researching the use of pictures in a classroom. Specifically, it aims at finding out the effectiveness of the use of picture cues in teaching writing.The study belongs to experimental research involving two groups of experiment and control. The eighth-grade students of a private junior high school in Central Java Indonesia are chosen as the subject of the research during 2017/2018 academic year. Employing a sample population technique, the study involves a total number of 56 students who are equally divided into 28 students as the experimental group and 28 students as the control group. The experimental group is taught using picture cues while the control group is taught without picture cues. Pre-test and post-test are used as techniques to collect the data. As for the data analysis technique, it’s done quantitatively applying both descriptive and inferential statistics.The result of the research shows that there is a significant difference in the students’ writing ability between those taught using picture cues and those who are not. This can be seen from the difference in the mean score between them. The result of the pre-test shows that at the beginning, both experimental and control groups have slightly different ability in writing with the mean scores 51.32 and 47.86 respectively. Meanwhile, the result of the post-test indicates an obvious difference between them in which the experimental group gains 65.75 as its mean score and the control group gets 59.14. Furthermore, the application of Independent t-test calculation results in a score of 0.000, which is lower than 0.05. This means that the use of picture cues is effective. Based on these results, it can be concluded that the use of picture cues is effective to teach writing to students.
Students’ Voice on Their English Teacher’s Teaching Techniques: A Case Study at A Private Indonesian Junior High School
Authors: Pratolo Bambang Widi , Susanti Ani , Indriani Indriani
Published: August 2019

This study is aimed to know the students’perception toward the English teacher’s teaching techniques. This study was conducted in grade eight of two EFL classes of a junior high school in Indonesia. The instruments to collect the data was a Likert-scale questionnaire with five options of strongly agree to strongly disagree, while to analyze the data the researcher used descriptive statistics by finding means, standard deviation and frequency. An in-depth interview was also conducted to nine out of 60 students to scrutinize the students’ voice on their English teachers’ performance. The result of the analysis showed that the teacher in this study performed all the three techniques, controlled, semi-controlled and free technique. The finding also showed that the most frequently used technique was controlled technique, followed by a semi-controlled and free technique. Meanwhile, most of the students have positive perception toward their English teacher’s teaching techniques.
Developing Culture-Based English Instructional Materials for Grade VII of Junior High School Students
Authors: Afifah Wiwiek Afifah
Published: August 2019

The research aims at developing culture-based English instructional materials (henceforth, CBEIM) for grade VII of Junior High School students and reveal its final product representation in terms of its effectiveness. The research design was a research and development. The procedure of product development consisted of conducting needs analysis, designing course grids, developing the first draft, implementing the final draft, and evaluating the final product. The product implementation consisted of the 1st tryout involving 4 students from Yogyakarta State Junior High School (henceforth, Y-SJHS) 10, the 2nd tryout involving 34 students from Y-SJHS 7, and there were 68 students involved in the 3rd tryout. They were from Y-SJHS 9 and Y-SJHS 10. The data were collected by using evaluation sheets, an English achievement test, questionnaire to measure students’ level of internalization and actualization toward culture values, and questionnaires for teachers’ responses. The data were analyzed by t-test using paired and independent sample with the gain score. The research finding reveals 1) based on the content expert validation, CBEIM was very good by the aspect of content, language, learning, culture, presentation, and graphical design, whereas based on the graphical design expert, CBEIM was good. 2) Having been implemented, the final product representation was proven to be effective. The students in the experiment classes got a higher improvement than those in the control classes. The statistical calculation of independent samples test with gain score of the English test from the two groups shows the t values of 2.931 with the p = 0.004 < 0.05, while the t-test for equality of means of culture values, t value reached 2.524 and its significance of 2-tailed reached p = 0.037 < 0.05, alpha value (α=0.05). Since the gain score is smaller than 0.05, CBEIM demonstrates that it can show a significant difference between the experiment and control classes in encouraging students to internalize and actualize the culture values.
The Implementation of 2013 Curriculum in English Teaching: Stories From Rural Areas
Authors: Daud Afrianto , Gunawan Heri
Published: August 2019

This study aims to document how the 2103 curriculum has been implemented by English teachers in a high school located in a rural area in Riau province. This research in particular investigates the implementation of Scientific Approach by English teachers in Bunga Raya Siak regency. The study is specifically aimed at investigating two research questions: (1) how the scientific approach has been implemented in the classroom and (2) what problems the teachers face during the implementation. Three English teachers were selected as participants of this study using total sampling technique. Since the study employed mixed method, the data consisted of quantitative and qualitative entities. The quantitative data were obtained from a questionnaire (survey) while the qualitative ones were gained through semi-structured interviews. The results revealed that the teachers have implemented the scientific approach relatively well. This can be seen from the results of the survey in which the overall mean score calculated was categorized ‘very good’. However, the interview data shows that all teachers experienced some problems in implementing this new curriculum. In general, the problems can be classified into four: (a) insufficient English teaching hour; (b) the students’ high diversity in terms of ability; (c) discrepancy between curriculum and national examination contents; and (d) lack of the facility.
The Dynamicity of The Perceptive Verb Look: A Cognitive Linguistics Study
Authors: Prayudha Prayudha
Published: August 2019

Perceptive verbs have important function, especially in Cognitive Linguistics perspective, because these verbs are directly related to real experience. Cognitive linguistics focuses on the study of the relationship between language, mind, and socio-physical experience. Thus, this paper discusses how the lexical-semantic characteristics particularly the dynamicity or aktionsarten of the verb look. The verb look itself consists of agentive and perceptive verb class. The dynamicity of agentive and the perceptive verb look were analyzed using the distributional method combined with several techniques. Most of the verb look constructions appear as phrasal verbs. At least, there are 17 phrasal verbs with look as the root and the constructions consist of at least 20 different meanings. The dynamicity test is also applicated for the phrasal verbs. The results of the research show unique lexical characteristics of the perceptive verb look and it influences the meaning as well as the construction of the verb. The relationship between lexical characteristic with its construction shows the schema of cognition processing language.
Multiple Studies: The Influence of Collaborative Learning Approach on Indonesian Secondary High School Students’ English-Speaking Skills
Authors: Arta Berli
Published: August 2019

To respond the globalization, the importance of English communication skills including speaking skills increases. Looking at Indonesian context, secondary high school students find spoken English is much more difficult than written English. Students are good at grammar, reading, and writing but they can hardly speak (Hairdara, 2016). This article proposes collaborative learning approach (CLA) as one suitable solution to solve the obstacles of sharpening English speaking skills due to its benefits. The discussion of this investigation highlights some benefits of CLA in developing speaking skills and its challenges need to be considered as well. Receiving well-proven evidence of its benefits, CLA is recommended to be implemented in teaching and learning English speaking skills. As results of this investigation, there are three main benefits of CLA that its implementation can reduce language anxiety, raise students’ participation, and increase students’ self-confidence.
Improving Students’ Writing Skills through the Application of Synectic Model of Teaching Using Audiovisual Media
Authors: Ruhama Ufi , Purwaningsih Dewi Ismu
Published: August 2019

Writing might be difficult for some people (Alwasilah, 2007). Some students can speak English fluently and confidently, although since they have difficulties in conveying their ideas in writing. Thus, it needs the effective and efficient model of teaching to improve the teaching learning process. Synectic model of teaching is a model applied to enhance students’ ability to write. This model combines various forms of metaphoric thinking to see old ideas in different ways. In this research, the researcher used audiovisual media to support learning. The purpose of this research is to find out students’ improvement in writing descriptive texts using synectic model of teaching. The sample of the research was 36 students of class IXD in MTsN 2 Pontianak. The research was Classroom Action Research using Kemmis and MC Taggart model with two cycles. The result shows that there is improvement in students writing skill. The mean score of pre-test is 56.01, posttest 1 is 66.5, and posttest 2 is 87.46. It means the application of synectic model of teaching using audiovisual media is able to increase students’ ability in writing descriptive text.