bluuebunny/crossref_metadata_2025 huggingface dataset:
Physical and Dosimetric Aspect of Euromechanics Add-on Multileaf Collimator on Varian Clinac 2100 C/D
Authors: Rohani S A , Mahdavi S R , Mostaar A , Ueltzhöffer S , Mohammadi R , Geraily Gh
Published: January 2019

Background: Before treatment planning and dose delivery, quality assurance of multi-leaf collimator (MLC) has an important role in intensity-modulated radiation therapy (IMRT) due to the creation of multiple segments from optimization process.Objective: The purpose of this study is to assess the quality control of MLC leaves using EBT3 Gafchromic films.Material and Methods: Leaf Position accuracy and leaf gap reproducibility were checked with Garden fence test. The garden fence test consists of 5 thin bands A) 0.2 Cm width spaced at 2 Cm intervals and B) 1 Cm width spaced at 1 Cm intervals. Each leaf accuracy was analyzed with measuring the full-width half-maximum (FWHM). Maximum and average leaf transmission were measured with gafchromic EBT3 films from Ashland for both 6 MV and 18 MV beams.Results: Leaf positions were found to be in a range between 1.78 – 2.53 mm, instead of nominal 2 mm for the test A and between 9.09 – 10.36 mm, instead of nominal 10 mm for the test B. The Average radiation transmission of the MLC was noted 1.79% and 1.98% of the open 10x10 Cm2 field at isocenter for 6 MV and 18 MV beams, respectively. Maximum radiation transmission was noted 4.1% and 4.4% for 6 MV and 18 MV beams, respectively.Conclusion: In this study, application of gafchromic EBT3 films for the quality assurance of Euromechanics multileaf collimator was studied. Our results showed that the average leaf leakage and positional accuracy of this type of MLC were in the acceptance level based on the Protocols.
La investigación sobre los usos y los riesgos de los menores en el ciberespacio. Análisis metodológico
Authors: García Jiménez Antonio , López de Ayala María Cruz , Gaona Pisonero Carmen
Published: January 2019

Se analizan las principales características metodológicas de la producción científica española sobre las prácticas online de los menores españoles. El trabajo se basa en una exhaustiva revisión bibliográfica de los artículos, libros, informes y comunicaciones publicados en la última década, con una doble dimensión que toma en consideración las iniciativas institucionales como las de carácter más académico. En la segunda parte del artículo, y tras una comparación con trabajos de carácter internacional, se analizan algunos de los planteamientos metodológicos más destacados y se focaliza la atención en los diseños metodológicos que implementen de forma interrelacionada tanto técnicas de investigación cuantitativas como cualitativas.
Las relaciones amorosas en la ficción seriada. Lenguaje audiovisual e imaginarios sociales
Authors: Aran Rampost Sue
Published: January 2019

La presente investigación observa entre estudiantes de Master del Institut of Education de la Universidad de Londres los conocimientos que intervienen en su interpretación de la representación de las relaciones amorosas en la ficción seriada televisiva. El marco teórico está en el trabajo del grupo de investigación RETEVIS (Medina et al., 2008; Aran, Medina, Rodrigo, 2010), y se defiende una noción de educación mediática (Buckingham, 2003) que supera la estricta alfabetización en la “gramática” audiovisual. A partir de entrevistas y focus group, se observa la eficacia del conocimiento en lenguaje audiovisual en la elaboración de un discurso analítico y crítico sobre el dispositivo escénico y los contenidos estereotipados, y una demanda de nuevos modelos amorosos en la oferta de ficción.
Pajak Dalam Persepektif Hukum Ekonomi Syariah
Authors: Fatarib Husnul
Published: January 2019

Dikebanyakan Negara, pajak merupakan salah satu devisi utama dalam menunjang keberhasilan pembangunana nansional sehingga menjadi pemungutan yang memiliki konsekuensi logis dalam hidup bermasyarakat, berbangsa dan bernegara sebagai pencerminan suatu keadilan untuk kesejahteraan. Pajak tersebut dibebankan kepada setiap warga negara yang memiliki kewajiban membayar pajak. Dalam ajaran islam terdapat kelompok orang yang berkewajiban mengeluarkan sebagian kecil hartanyab sebagai zakat. Pajak pada dasarnya dimanfaatkan unutk membiayai kegiatan kegiatan dalam bidang dan sektor pembangunann. Istilah pajak dalam hukum islam yang menjadi sumber pendapat negara tidak dikenal. Oleh karena itu, para ulama berbeda pendapat mengenai status hukum pajak ditinjau dari konsep hukum islam.
Reception aesthetics in Vietnam
Authors: Do Hieu Van
Published: January 2019

Reception aesthetics is a theory of literature which has exerted major impacts throughout the world from the late 1960s to the late 1980s in the West, espacially dymanically in China from the 1980s of the 20th century to the first decade of the 21st century. In Vietnam, although this theory was born quite early (1985), its mark is still not deeply engraved; thus a lot of potentials not having been discovered and utilized. Recreating the complete appearance of reception aesthetics in Vietnam and explaining the cause of that appearance is an important basis for discussion about the reception of foreign theory. How to make Vietnam literature theory integrated and successfully communicated with the world literature theory? How to make the most effective use of the Western theory in solving problems of the local literature? How to build a firm theory background imbued with national identities in the context of globalization? etc. are the author’s issues of great concerns.
Novel in Southern Vietnam at the beginning of 20th century: Types and publicity forms
Authors: Phan Hung Manh
Published: January 2019

The paper presented the types, the publicity forms of novels in southern Vietnam at the beginning of the 20th Century. The study emphasized on the typical characteristics of novels for the masses and its interactive relationship with publicity forms, readers and writers’ selection. The paper also affirms that the forms and contents of novels in the South are conceptive selection of southern novel writers during the early 20th Century.
The Multi-dimensional Reality in “Conversation in the Cathedral”
Authors: Le Phuong Ngoc
Published: January 2019

The study was conducted with the purpose of deeply understanding the novel Conversation in the Cathedral of Peruvian of Mario Vargas Llosa which was translated into Vietnamese by Pham Van in 2011. Written in the late 1960s, although Conversation in the Cathedral of Peruvian was not his latest novel, it is still recognized as his most monumental work marking his ability to genuinely reflect and recreate the whole social aspects of Peru’s times. The most noticeable characteristics of the novel was choosen to study: building of broad and multi-faceted reality, discovering reality in different dimensions and reference systems The paper also shows Mario Vargas Llosa’s examination and judgement, acuity of his explanation of personal destiny and fate of the people under changing dictatorship. With massive capacity of 640 pages, Conversation in the Cathedral vividly expressed sprawling realistic mass in confusion and disorder of a poor third-world country in post-colonial period. Apart from exploring life, multi-dimentional reality in the work is researched on through innovative aspects of art of novel: unprecedented way of writing, application of dialogue model, use of multi-layered and bi-layered structures of narrative language and personnal pronouns. Through Conversation in the Cathedral, Mario Vargas Llosa has proved himself as a writer of high calibre, with keen knowledge of social life, and with a strong desire to discover reality of his self right from the inside.
Mass customization capability
Authors: Vo Toan Khanh , Bui Hung Nguyen
Published: January 2019

This paper aims to evaluate the reliability, validity and unidimentionality of the scales. A prepilot study was completed that involved three manufacturing managers and four academic experts to improve content validity. A pilot study was then completed that 108 middle and senior manufacturing managers in HCM City and neighboring provinces. Cronbach’s alpha and EFA analysis was used to assess the reliability validity and unidimentionality of the scales. The initial results show that mass customization capability, product modularity, supplier integration may have reliability, validity and unidimentionality; customer integration may not have unidimentionality. Therefore, large-scale data collection and analysis will have collected and analyzed to validate the instruments, test the model and research hypotheses.
Assess the lean performances in Vietnamese companies – a multi-case study in manufacturing firms
Authors: Bui Hung Nguyen , Le Luong Phuoc , Nguyen Dang Thi Hong
Published: January 2019

This study is conducted to assess the Lean performances of 10 Vietnamese manufacturing companies in terms of 13 factors proposed by Hirano (2009). Managers of 6 large companies and 4 small and medium ones are invited to participate in semi-structured interviews to assess their own company’s Lean performances and raise the ideas for their assessments. The research results show that large companies perform better than the small and medium ones in all 13 factors. As a whole, the studied companies apply Lean at acceptable levels for their operations in terms of awareness revolution, the 5S’s, multi-process operations, labor cost reduction, visual control, quality assurance, standard operations, maintenance and safety. These companies have to effort much more in flow production, Kanban, leveled production, change-over, and human automation. To survive in the context of today Vietnam economy, these companies should focus on long-term strategies to take advantages of Lean philosophy for their future development.
Key factors affecting on the success of ERP projects in Vietnam
Authors: Nguy Hien Thi , Pham Trung Quoc
Published: January 2019

Today, enterprise resource planning system (ERP) becomes popular and it is implemented in most business (in all fields and sizes) all over the world as well as in Vietnam. However, according to consultant experts, ERP projects, though on a large scale with high cost, entail low success rate. For Vietnamese contexts, those findings above are all the more true, because most of Vietnamese enterprises are on a small scale with short-time computerization access, lack of understanding of enterprise systems, and lack of financial resources. This research focuses on exploring key factors affecting the success of ERP projects in Vietnam. Through case studies and data collection, using SPSS for data analysis, key factors affecting the success of ERP projects are listed on such a descending order as follows: Characteristics of ERP team, Quality of consultancy, Characteristics of end-users and Characteristics of business. From the abovementioned analysis, suggestions for ensuring success of ERPs in Vietnam are also proposed.
Determination of bearing capacity of bored pile using SPT number N and undrained shear strength Su
Authors: Vo Nhat Dai
Published: January 2019

In this paper, the determination of bearing capacity of bored pile using the SPT number and undrained shear strength is presented. The advantages of this method are simple and always feasible, especially for bridge and pier designing in case of expressway projects constructed on soft soils. The 22TCN 272-05 standard is used to calculate bearing capacity of bored pile including skin friction and end bearing capacities. An applicable form for calculating the bearing capacity of bored pile is made. An example is presented and the applied result is shown.
MORPHOLOGICAL VARIATIONS OF TERRESTRIAL ORCHID THELYMITRA JAVANICA BLUME (ORCHIDACEAE: ORCHIDOIDEAE) IN MOUNT ARJUNO, LAWU, AND SUMBING, JAVA – INDONESIA
Authors: Wijaya I Made Saka , Daryono Budi Setiadi , Purnomo Purnomo
Published: January 2019

I Made Saka Wijaya, Budi Setiadi Daryono & Purnomo. 2018. Variasi Morfologi Anggrek Tanah Thelymitra javanica Blume (Orchidaceae: Orchidoideae) di G. Arjuno, G. Lawu dan G. Sumbing, Jawa-Indonesia. Floribunda 6(1): 22–31. — Tujuan kajian ini adalah untuk mengetahui variasi morfologi dan kekerabatan fenetik dari T. javanica dari ketiga gunung tersebut. Tiga belas sampel dikoleksi dari sepanjang jalur pendakian. Pengamatan morfologi dilakukan terhadap organ akar, umbi, daun, tangkai perbungaan, braktea, bunga, buah dan biji. Dendrogram dibangun dengan metoda kluster UPGMA dengan algoritma “Percent’s Similarity”. Sedangkan analisis PCA dilakukan dengan algoritma “Euclidean Distance” menggunakan perangkat lunak MVSP v.3.1. Hasil studi menunjukkan bahwa variasi morfologi jenis T. javanica tergolong plastis dalam hal ukuran dan warna, terutama warna tangkai perbungaan, mahkota, labelum, ovarium dan rangka ovarium, yang dapat digunakan untuk membedakan populasi atau ekotipe.Kata kunci: Ekotipe, Orchidaceae, fenetik, plastisitas, Thelymitra javanica. I Made Saka Wijaya, Budi Setiadi Daryono & Purnomo. 2018. Morphological Variations of Terrestrial Orchid Thelymitra javanica Blume (Orchidaceae: Orchidoideae) in Mount Arjuno, Lawu, and Sumbing, Java- Indonesia. Floribunda 6(1): 22–31. — The aims of this study were to observe morphological variations and phenetic relationships of T. javanica from the three mountains. Thirteen samples were colected along the tracking routes, morphological observation was based on character of root, tuber, leaf, peduncle, floral bract, flower, fruit, and seed. The data were compile descriptively to identify variations that subsequently scored. Dendrogram were constructed by UPGMA clastering method with Percent’s Similarity algorithm, while Principal Component Analysis was done with Euclidean Distance algorithm using MVSP v.3.1. software. The result shows that morphological variations of T. javanica is found to be plastis for size and color, especially color of peduncle, petals, labellum, ovary, and ovary ribs that can be used to separate distinct population or ecotype.Keywords: Ecotype, Orchidaceae, phenetic, plasticity, Thelymitra javanica
RHODODENDRON GUMINEENSE CRAVEN (ERICACEAE, SUBGENUS VIREYA), A NEW RECORD FOR INDONESIA
Authors: Mambrasar Yasper Michael
Published: January 2019

Yasper Michael Mambrasar. 2018. Rhododendron gumineense Craven (Ericaceae, Submarga Vireya), Rekaman Baru untuk Indonesia. Floribunda 6(1): 19–21. — Jumlah jenis Rhododendron di Indonesia dilaporkan sebanyak 229 jenis. Satu jenis Rhododendron dari Lembah Baliem, Indonesia yang sebelumnya diidentifikasi sebagai Rhododendron beyerinckianum Koord. telah diidentifikasi sebagai Rhododendron gumineense Craven, berdasarkan bentuk daun dan tangkai putik. Sehingga menambah jumlah jenis Rhododendron di Indonesia menjadi 230.Kata Kunci: Indonesia, Lembah Baliem, Rekaman baru, Rhododendron. Yasper Michael Mambrasar. 2018. Rhododendron gumineense Craven (Ericaceae, Subgenus Vireya), a new record for Indonesia. Floribunda 6(1): 19–21. — The number of Rhododendron species in Indonesia was reported as 229 species. A specimen of Rhododendron from the Baliem valley, Indonesia previously identified as Rhododendron beyerinckianum Koord. has been identified as Rhododendron gumineense Craven, based on leaf shape and style morphology. This increases the number of Rhododendrons in Indonesia to 230 species.Keywords: Indonesia, Baliem valley, New record, Rhododendron.
E-TNA identification
Authors: Ramli Mastura Binti , Sukor Noradilah Binti , Mohd Yasin Sharifah Nurulhuda Binti Tuan
Published: January 2019

Electronic Training Need Analysis Identification (e-TNAi) is an application of responsive web systems developed to provide accurate and relevant data on the predictions of training needs of an organization. This system application can be accessed through a variety of devices where each staff can fill out the training requirements information everywhere. This effective method allows information to be collected centrally. The training offers are based on the field of training and staff’s choice. The staff's interest and knowledge and additional values will be linked directly to this app in ensuring the right training offers. The novelty and uniqueness of this system is from the aspect of smart identification; the system will identify the priority of which training the management needs to organize. Additionally, this method also has a good impact in which it is time-saving in the aspect of effective decision making at the organization level. In short, this application gives you the edge in the accuracy of information as well as smart, portable, flexible and cost-effective. The e-TNAi system is a system applied at Sultan Mizan Zainal Abidin Polytechnic (PSMZA). It is also very suitable to be applied and has the potential to be marketed as it can be used by all polytechnics in Malaysia. This system can also be applied to all other institutions to assist management in decision making of training priorities in future.
dodgr: An R package for network flow aggregation
Authors: Padgham Mark
Published: January 2019

Allocation of flows throughout networks is a common problem in transport research, yet there are very few computational tools available, and almost no open source tools. We describe a new software package, "dodgr" (Distances On Directed GRaphs) capable of extremely efficient flow aggregation over millions of routes within a network. This package represents a much needed advance in transport research, enabling aggregation at the finest scales of individual street segments, with results able to be direcly viewed with modern web-rendering and interactive viewing tools such as deck.gl.
Change of Fatigue and Mechanical Fracture Properties of a Cement Composite due to Partial Replacement of Aggregate by Red Ceramic Waste
Authors: Seitl Stanislav , Miarka Petr , Šimonová Hana , Frantík Petr , Keršner Zbyněk , Domski Jacek , Katzer Jacek
Published: January 2019

Fine-grained cement-based composites used in civil engineering and construction industry are usually made of cement-based matrix and natural aggregate (such as sand, gravel, crushed stone, etc.). Red ceramic waste aggregate is considered as a perspective replacement of a part of natural aggregate in modern environmentally oriented building materials. Fine-grained cement composite with natural aggregate partially replaced by ceramic waste aggregate usually show different mechanical fracture characteristics from ordinary fine-grained concrete. The specimens were tested at six different ages. This was the reason for conducting the research programme. Altogether, 6 fine-grained cement mixtures with various proportions of natural and red ceramic waste aggregate were prepared. The aim of this paper is to present and compare mechanical fracture properties obtained from static and fatigue tests. Bulk density, flexural and compressive cube strength, fracture toughness and fatigue properties (S−N − Wöhler curve) were of special interest. All of these tests are important for a practical application of concrete with ceramic aggregate for structures. All the results were statistically analysed and they showed that the fatigue and mechanical fracture properties were improved or at least kept up with the increasing levels of red ceramic waste aggregate. Environmental impact of application in construction industry of composites in question is discussed.
A micromechanical Sliding-Damage Model Under Dynamic Compressive Loading
Authors: Ahmadi Mohammad Hossein , Molladavoodi Hamed
Published: January 2019

For most rock materials, there exists a strong coupling between plastic flow caused by sliding along micro-crack faces and damage evolution due to nucleation and growth of wing-cracks. The aim of this article is to develop the self-consistent based micromechanical model by taking into account the coupling between frictional sliding and damage process under dynamic compressive loading. The developed model algorithm was programmed in the commercial finite difference software environment for numerical simulation of rock material to investigate the relationship between the mechanical behaviour and microstructure. Eventually while the stress intensity factor at flaw tips exceeds the material fracture toughness, the wing-cracks are sprouted and damage evolution occurs. For frictional closed cracks, an appropriate criterion for the onset of frictional sliding along micro-cracks was proposed in this paper. Also, plastic strain increments were determined by the flow rule, consistency condition and normality rule within the thermodynamic framework. The simulation results demonstrate that the developed micromechanical model can adequately reproduce many features of the rock behaviour such as hardening prior to the peak strength, softening in post-peak region, damage induced by wing-cracks and irreversible deformations caused by frictional sliding along micro-cracks. Furthermore, the softening behaviour of material in post-peak region is affected and the material undergoes higher values of strains and damage up to the residual strength. Therefore, the rock sample simulation with the coupled frictional sliding-damage model could increase plasticity and ductility of the rock in post-peak region because of regarding plastic strains caused by the frictional sliding along micro-cracks.
Actitudes hacia las mascotas, empatía y adolescencia
Authors: Nieto-Palma Marta , García-Gómez Andrés
Published: January 2019

INTRODUCCIÓN. En varios estudios se ha desvelado que las relaciones entre humanos y animales pueden jugar un papel importante en el desarrollo socioemocional de los niños OBJETIVO. El presente estudio pretende identificar la relación existente entre la variable dependiente empatía y las variables independientes actitudes hacia las mascotas, trato hacia las mascotas y tener o no tener mascota, en un grupo de preadolescentes. MÉTODO. Se presenta un estudio de tipo ex post facto. Se han aplicado tres cuestionarios: El Interpersonal Reactivity Index en su versión castellanizada, El Pet Attitude Scale - Modified y El Children´s Treatment of Animals Questionnaire. RESULTADOS. Hemos constatado que existen relaciones de covariación entre algunas de las variables estudiadas lo que nos ha permitido proponer una serie de cuatro modelos causales y decidir cuál de ellos obtiene los mejores indicadores de bondad de ajuste. DISCUSIÓN Y CONCLUSIONES. El contacto con animales en el hogar ejerce influencia sobre el desarrollo de la empatía en los niños.
New Phytotelm plant for Ecuador, Ananas comosus L. Merr. (Bromeliaceae) a its Wyeomyia species inhabitant (Diptera, Culicidae)
Authors: Navarro Juan Carlos , Duque Paúl L. , Liria Jonathan , Enríquez Sandra , Vaca-Moyano Franklin , Salazar José G.
Published: January 2019

INTRODUCTION. Phytotelmata are a botanical group with water-impounding structures formed by non-aquatic plants, such as leaf axils, perforated internodes, stem holes or depressions, rot-holes in tree trunks or branches (tree-holes), flowers, open fruits, among others. These plants offer suitable conditions for aquatic or semi-aquatic animals, in particular arthropods. Immature mosquitoes (Diptera: Culicidae) are well represented among the inhabitants of phytotelmata. OBJECTIVE. Carry out a rapid assessment of the biodiversity of mosquitoes present in different land uses in the population and biological reserve of Limoncocha, to assess the vulnerability and risk of transmission of pathogens that cause emerging diseases. METHODS. Immature mosquitoes were collected in different phytotelmata including Ananas comosus leaf axils in a deforested area with small crops nearby of the Limoncocha Biological Reserve. RESULTS. Fourth instar larvae of Wyeomyia (Wyeomyia) medioalbipes Lutz were found in this plant to confirm their presence in the country and to the cultivated pineapples as phytotelmata in Ecuador. DISCUSSION AND CONCLUSIONS. This is the first report for Ecuador of Ananas comosus as phytotelmata and the associated mosquito species. Additionally, the presence of Wy. medioalpes in the country is confirmed. This information is added in the epidemiological evaluation of vulnerability and risk for the transmission of pathogens with a biogeographical and ecological vision.
After oil companies, what? Entrepreneurship experiences in the ecuadorian amazon
Authors: Burgaleta Elena , Flor Gary
Published: January 2019

INTRODUCTION. The present investigation analyzes the elements that explain the failure of the undertakings carried out in the Ecuadorian Amazon. OBJECTIVE. The main objective of the study is to determine the socioeconomic factors that are difficult for the development of productive processes in the Amazonian indigenous communities, taking as a case study the community of Limoncocha. METHOD. Being a descriptive case study, qualitative research techniques were used 6 in-depth interviews with key actors and a focus group with 23 young people from the community. RESULTS. The analysis of the data obtained can be systematized in three determining aspects that hinder the development of community projects and sustainable undertakings over time: internal conflicts among the main leaders, educational system not oriented to entrepreneurship and the presence of inconclusive entrepreneurships. DISCUSSION AND CONCLUSIONS. In conclusion, it is argued that the absence of entrepreneurship culture, derived from a relationship of historical economic dependence with different public and private institutions, has given rise to the current scenario, where the community perceives itself as incapable of developing, managing and sustain community projects of a productive nature.
Estado del uso de las TIC en las medianas empresas del área comercial de Quito
Authors: Ibujés-Villacís Juan , Robayo-Martínez Rómulo
Published: January 2019

INTRODUCCIÓN. La aplicación de la tecnología en la gestión empresarial se ha convertido en un factor determinante para que las empresas sean eficaces, eficientes, innovadoras y competitivas. OBJETIVO. Este estudio evidencia el uso de las Tecnologías de Información y Comunicación (TIC) en las medianas empresas (Mes) del área comercial de Quito y que pertenecen al clasificador G según la Clasificación Internacional Industrial Uniforme (CIIU). MÉTODO. La investigación tiene un diseño no experimental, transversal y con alcance descriptivo. Se realizó una encuesta a 60 empresas de una población de 722 registradas hasta el año 2016. Para analizar el estado del uso de las TIC, se ha tomado como referencia los indicadores propuestos por la Comisión Económica para América Latina y el Caribe a través del Observatorio para la Sociedad de la Información en Latinoamérica y Caribe (OSILAC). RESULTADOS. Los resultados muestran que todas las medianas empresas tienen acceso al Internet, 90% tiene presencia en la web y 59% utilizan las TIC en sus procesos productivos. DISCUSIÓN Y CONCLUSIONES. Las MEs están incursionando en forma decidida en el uso de las TIC para fortalecer sus actividades empresariales. Además, estas empresas están ampliando la cobertura local de sus negocios y su presencia en la web les permitirá aplicar alternativas nuevas de interacción global con clientes y proveedores.
PRE-SERVICE TEACHERS´ BELIEFS ABOUT THE BENEFITS AND CHALLENGES OF STSE BASED SCHOOL-INDUSTRY COLLABORATION AND PRACTICES IN SCIENCE EDUCATION
Authors: Kousa Päivi , Aksela Maija , Ferk Savec Vesna
Published: January 2019

School-industry collaboration can be an effective way to implement STSE issues to teaching. However, teachers´ negative beliefs, lack of knowledge, resources, support and opportunities to collaborate with companies can impede the efficient implementation. In this case-study, 42 Finnish and Slovenian pre-service teachers´ STSE beliefs were first examined before and after the school-industry collaboration course by survey. After the course, beliefs of 8 Finnish pre-service teachers were analyzed in more detail by open-ended questionnaires and reflective writing. The pre-service teachers were more confident to teach STSE issues after the course in both countries. However, they needed more support and knowledge from the community members they collaborated with (i.e. representatives of industries, university teacher, student colleagues and school teachers). The industry-based teaching material was considered beneficiary especially for mixed-ability classrooms and the whole course was regarded useful for future practices. The results of this research highlight the importance of pre-service teacher education and practices with STSE issues. The positive and negative beliefs should be examined frequently already during the pre-service education in order to develop tools for teacher support and encouragement. This research promotes a practical example and ideas of a local school-company collaboration. Keywords: school-industry collaboration, sience teacher education, STSE issues, teachers´ beliefs.
ORGANIZING AND ATTENDING INTERNATIONAL CONFERENCES
Authors: Tsaparlis Georgios
Published: January 2019

Conferences, and especially international conferences, have become an integral part of a scientist’s activities. The attendees are, as a rule, academics and their graduate students, with the latter usually accompanying their supervisors. In addition to recent graduates undertaking full-time research, the term graduate student can also apply to part-time research students, including teachers who often adopt an action research approach, using their own classes as the focus of their studies.
With most conferences, the emphasis tends to be on the presentation and discussion of the findings of recent research. However, in the case of science education, the dissemination of good practice can be considered equally important. Here, “there is little reason to do research, unless there is a pay-off in the classroom” (Hurd de Hart, 1991).
THE EFFECTS OF MODEL SUPPORTED COOPERATIVE AND INDIVIDUAL LEARNING METHODS ON PROSPECTIVE SCIENCE TEACHERS’ UNDERSTANDING OF SOLUTIONS
Authors: Ozdilek Zehra , Okumus Seda , Doymus Kemal
Published: January 2019

This research was conducted to facilitate the conceptual understanding of the solutions that contain abstract concepts and not to understand easily. The aim of this research is to determine the effect of applied methods on the achievement level of prospective science teachers and conceptual understanding level at the particulate nature of matter in solution chemistry. The research was conducted with 58 prospective science teachers and a pre-test/posttest non-equivalent quasi-experimental design was used. Three experimental groups were determined as model supported Reading Writing Application method of cooperative learning (n=20), model supported Students Teams Achievement Divisions method of cooperative learning (n=20), and model supported individual learning method (n=18). The data collected with a Particulate Nature of Matter Test (PNMT) and a Module Test (MT). For analyzing data descriptive statistics, one–way ANOVA, and ANCOVA were used. The results showed that there was no significant effect with respect to the achievement level. According to findings from the post test of MT, all groups were more successful in terms of correct understanding of the solutions compared with the pre-tests.
Keywords: cooperative learning, individual learning, pedagogical-analogical models, solution chemistry, particulate nature of matter.
THE EFFECTIVENESS OF OIDDE LEARNING MODEL IN THE IMPROVEMENT OF BIOETHICS KNOWLEDGE, ETHICAL DECISION, AND ETHICAL ATTITUDE OF BIOLOGY PRE-SERVICE TEACHERS
Authors: Hudha Atok Miftachul , Amin Mohamad , Sumitro Sutiman Bambang , Akbar Sa’dun
Published: January 2019

The aim of this research was to (1) compare the effectiveness of OIDDE (Orientation, Identify, Discussion, Decision, and Engage in Behavior) learning model and conventional learning models in improving bioethics knowledge; (2) compare the effectiveness of OIDDE learning model and conventional learning models in improving ethical decision-making abilities; (3) comparing the effectiveness of OIDDE learning model and conventional learning model in improving ethical attitudes. The research design was a quasi experimental non-equivalent control group design pre-test post-test. The research population was the second semester students of the biology pre-service teachers’ department of biology education of the FTTE Muhammadiyah University of Malang. Sampling was done by simple random sampling and obtained 76 students were devided into 37 students in the experimental group and 39 students in the control group. Data collecting is carried out through bioethical knowledge tests, and ethical decision- making, and scoring of ethical attitudes. Data were analyzed by ANCOVA, Kolmogorv-Smirnov, and unpaired T test. The results showed that there were significant differences in the effectiveness of achieving improved bioethics knowledge, ethical decision making, and ethical attitudes between OIDDE and conventional learning models, namely the effectiveness of OIDDE learning models higher than conventional learning models. Keywords: bioethics knowledge, biology pre-service teachers, ethical attitudes, ethical decisions, OIDDE learning model.
Incretin Hormones, Thyroid Stimulating Hormone and Human Growth Hormone Responses During Ogtt in Newly Diagnosed T2DM Patients
Authors: Jhuma KA , Giasuddin ASM , Hossain MS , Haq AMM
Published: January 2019

Several research groups have reported variable results about incretin effects of glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1(GLP-1), altered thyroid stimulating hormone (TSH) status, human growth hormone (hGH) deficiency and perturbed cytokines balances in type 2 diabetes mellitus (T2DM).The present case-control prospective interventional study was conducted investigating responses of incretin hormones (GIP, GLP-1), TSH and hGH to oral glucose tolerance test (OGTT) in newly diagnosed Bangladeshi T2DM patient. Blood samples were collected from 36 OGTT positive newly diagnosed T2DM patients as cases and 30 normal adults as controls at '0' minute (fasting) and at 2 hours after OGTT. Laboratory investigations were done and special parameters in serum, i.e. hGH, TSH, Insulin, GIP and GLP-1 were analyzed using enzyme immunoassay (EIA) kits. Statistical analyses were made by Student's 't' test using SPSS programm. T2DM patients (cases) had FBG and BG2Hr levels much higher than controls (p<0.001). No significant differences were observed between controls and cases for F-TSH (p=0.927), TSH2HrA (p=0.413), F-hGH (p=0.532) and hGH2HrA (p=0.773) levels. It was observed that F-GIP (p=0.309) and F-GLP-1 (p=0.984) levels were similar between cases and controls. Interestingly, control subjects responded to OGTT by increasing GIP2HA and GLP-1, 2HR levels about 3 times compared to F-GIP and F-GLP-1 (p<0.001). In cases, F-GIP and F-GLP-1 levels were also raised responding to OGTT but by about 1.5 times only compared to F-GIP and F-GLP-1 (p<0.025). Although no significant differences were observed for F-TSH, TSH2HrA, F-hGH and hGH2HrA between cases and controls, F-GIP and F-GLP-1 levels were raised responding to OGTT in cases by about 1.5 times only compared to about 3.0 times in controls subjects. But responses of GIP and GLP-1 to glucose load were lower leading to reduced insulin levels in these T2DM patients reported earlier. Further studies with a larger sample size including cytokines are warranted.

Bangladesh J Med Biochem 2018; 11(1): 9-16
Pattern of Immunophenotype Among the Cases of Lymphoma Attending in A Tertiary Level Hospital
Authors: Munira Shirajam , Afroze Salama , Biswas Akhil Ranjon , Khan MA
Published: January 2019

Background : To explore the relative frequency and different forms of lymphoma in tertiary level hospital.

Methods: This descriptive observational study was carried out in the Department of Hematology at Dhaka Medical College Hospital, Dhaka. Patients attended with solid tissue lymphoma in Outpatient, Inpatient and Lymphoma Clinic services of Department of Hematology and Bone Marrow Transplant, Dhaka Medical College Hospital, Dhaka were taken as study population as per inclusion criteria. A total of 63 patients with lymphoma diagnosed by histopathologically were selected initially, among them 53 were confirmed by immunohistochemistry taken as study population finally.

Results: Mean age was 39.2 ± 15.5 years, median age was 36 years within the range of 14 – 75 years. Males were predominant. Male female ratio was 4.3:1. Most of the samples were collected from cervical lymph node (84.1%). Most of the patients came with fatigue and significant weight loss. Maximum 42 (79.24%) cases were Non-Hodgkin’s lymphoma and 11 (20.75%) cases were Hodgkin’s lymphoma. Out of 42 non-Hodgkin’s lymphoma, 27 (64.3%) were B-cell lymphoma and 15 (35.7%) were T-cell lymphoma. Among B-cell lymphoma, 19 (45.2%) were diffuse large B cell lymphoma, three (7.1%) were follicular lymphoma, three (7.1%) were mantle cell lymphoma, one (2.4%) was spleenic marginal zone lymphoma and one (2.4%) was Burkitt lymphoma. Among T-cell lymphoma, nine (21.4%) were peripheral T-cell lymphoma and six (14.3%) were adult T lymphoblastic lymphoma. Out of 11 Hodgkin’s lymphoma, 10 (90.9%) were classical Hodgkin’s lymphoma and one (9.1%) nodular lymphocyte predominant. Among classical Hodgkin’s lymphoma, five (45.5%) were mixed cellularity, three (27.3%) were lymphocyte predominant and two (18.2%) were Nodular sclerosis. Out of 42 non-Hodgkin’s lymphoma, 13 (30.95%) were indolent, 21 (50.00%) were aggressive and eight (19.05%) were very aggressive.

Conclusion: In our study, it was found that 79.3% were non-Hodgkin lymphoma of which 64.3% were B-cell lymphoma & 35.7% were T-cell lymphoma and 20.7% cases were Hodgkin lymphoma of which 90.9% were classical Hodgkin’s lymphoma, 9.1% nodular lymphocyte predominant Hodgkin’s lymphoma.

Chatt Maa Shi Hosp Med Coll J; Vol.17 (2); Jul 2018; Page 21-25
Numerical Bifurcation Analysis to Study Periodic Traveling Wave Solutions in a Model of Young Mussel Beds
Authors: Arif Md Ariful Islam , Gani M Osman
Published: January 2019

Self-bottomed mussel beds are dominant feature of ecosystem-scale self-organization. Regular spatial patterns of mussel beds in inter-tidal zone are typical, aligned perpendicular to the average incoming tidal flow. In this paper, we consider a two-variable partial differential equations model of young mussel beds. Our aim is to study the existence and stability of periodic traveling waves in a one-parameter family of solutions. We consider a parameter regime to show pattern existence in the model of young mussel beds. In addition, it is found that the periodic traveling waves changes their stability by two ways: Hopf type and Eckhaus type. We explain this stability by the calculation of essential spectra at different grid points in the two-dimensional parameter plane.

GANIT J. Bangladesh Math. Soc.Vol. 38 (2018) 1-10
Numerical Approximation of Fredholm Integral Equation (FIE) of 2nd Kind using Galerkin and Collocation Methods
Authors: Molla Hasib Uddin , Saha Goutam
Published: January 2019

In this research work, Galerkin and collocation methods have been introduced for approximating the solution of FIE of 2nd kind using LH (product of Laguerre and Hermite) polynomials which are considered as basis functions. Also, a comparison has been done between the solutions of Galerkin and collocation method with the exact solution. Both of these methods show the outcome in terms of the approximate polynomial which is a linear combination of basis functions. Results reveal that performance of collocation method is better than Galerkin method. Moreover, five different polynomials such as Legendre, Laguerre, Hermite, Chebyshev 1st kind and Bernstein are also considered as a basis functions. And it is found that all these approximate solutions converge to same polynomial solution and then a comparison has been made with the exact solution. In addition, five different set of collocation points are also being considered and then the approximate results are compared with the exact analytical solution. It is observed that collocation method performed well compared to Galerkin method.

GANIT J. Bangladesh Math. Soc.Vol. 38 (2018) 11-25
Sequentially Updated Weighted Cost Opportunity Based Algorithm in Transportation Problem
Authors: Jamali ARM Jalal Uddin , Akhtar Pushpa
Published: January 2019

Transportation models are of multidisciplinary fields of interest. In classical transportation approaches, the flow of allocation is controlled by the cost entries and/or manipulation of cost entries – so called Distribution Indicator (DI) or Total Opportunity Cost (TOC). But these DI or TOC tables are formulated by the manipulation of cost entries only. None of them considers demand and/or supply entry to formulate the DI/ TOC table. Recently authors have developed weighted opportunity cost (WOC) matrix where this weighted opportunity cost matrix is formulated by the manipulation of supply and demand entries along with cost entries as well. In this WOC matrix, the supply and demand entries act as weight factors. Moreover by incorporating this WOC matrix in Least Cost Matrix, authors have developed a new approach to find out Initial Basic Feasible Solution of Transportation Problems. But in that approach, WOC matrix was invariant in every step of allocation procedures. That is, after the first time formulation of the weighted opportunity cost matrix, the WOC matrix was invariant throughout all allocation procedures. On the other hand in VAM method, the flow of allocation is controlled by the DI table and this table is updated after each allocation step. Motivated by this idea, we have reformed the WOC matrix as Sequentially Updated Weighted Opportunity Cost (SUWOC) matrix. The significance difference of these two matrices is that, WOC matrix is invariant through all over the allocation procedures whereas SUWOC   matrix is updated in each step of allocation procedures. Note that here update (/invariant) means changed (/unchanged) the weighted opportunity cost of the cells. Finally by incorporating this SUWOC matrix in Least Cost Matrix, we have developed a new approach to find out Initial Basic Feasible Solution of Transportation Problems.  Some experiments have been carried out to justify the validity and the effectiveness of the proposed SUWOC-LCM approach. Experimental results reveal that the SUWOC-LCM approach outperforms to find out IBFS. Moreover sometime this approach is able to find out optimal solution too.

GANIT J. Bangladesh Math. Soc.Vol. 38 (2018) 47-55
A Bypassing Technique for the Remedy of Portal Hypertension through Extra Hepatic Portal Vein Obstruction by CFD Analysis
Authors: Atkar Mst Khorseda , Islam Md Tajul
Published: January 2019

Extra-hepatic portal vein obstruction (EHPVO) is the blockage to the flow of blood in the portal vein before reaches to the liver. EHPVO is the common cause of portal hypertension in children in the most Asian countries. Examination reveals that the presence of block in the main portal vein may be responsible for the shrinkage of vein with manifold pernicious complication. The “shunt” policy is a fruitful source of restoration of the hepatic portal flow. This study shows that a new approach of bypassing (or shunting) to the blocked (thrombosed) region of the portal vein is a significant way of reducing portal hypertension and restoration of blood circulation. We studied EHPVO case through computational fluid dynamics (CFD) analysis by considering partial block formation and side to side shunt scheme inside the main portal vein. The constitutive equation for non-Newtonian fluidand energy equation are solved by control volume technique. Our study reveals that the shunting technique is strongly effective for the reconstitution of portal venous flow to the liver with lower tissue stress and rapid regression of clinical signs of portal hypertension. This new technique may potentially applicable for medication of EHPVO when shunting procedures are indicated.

GANIT J. Bangladesh Math. Soc.Vol. 38 (2018) 89-104
Tantangan Pemberdayaan Perekonomian Kecil Melalui Usaha Kelompok Ibu Rumah Tangga (IRT)
Authors: Istikomayanti Yuswa , Bariska Hanif Fikri , Dwi Susanti Rizki Aprilia
Published: January 2019

ABSTRAK

Kegiatan Ibu Rumah Tangga (IRT) setelah selesai mengurus keperluan rumah tangganya, ibu-ibu tersebut tidak melakukan kegiatan lainnya. Dengan demikian pemasukan ekonomi hanya berasal dari suami. Upaya pemberdayaan perekonomian kecil yaitu usaha rumah tangga oleh Ibu-Ibu di Kelurahan Bunulrejo melalui kegiatan usaha jajanan kering sangat memberikan kesempatan untuk menambah pemasukan keluarga. Hasil dari program kemitraan ini sudah memberikan peningkatan keterampilan untuk memproduksi jajanan yaitu kacang bawang, sale pisang molen, dan stik keju. Tantangan yang dihadapi dalam pemberdayaan ini yaitu upaya meningkatkan kepercayaan diri dan jiwa wirausaha, upaya memperluas jaringan pasar dan modal, upaya menjaga kualitas produk dan daya saing di pasar. Upaya yang ditempuh yaitu dengan menyusun modul pembukuan sederhana, modul pemasaran, pendampingan standar kualitas produk dan pendampingan pemasaran secara online dan offline.

Kata-kata kunci : daya saing, ekonomi kecil, Ibu Rumah Tangga (IRT), pemasaran.

ABSTRACT

Housewarming activities (IRT) after completing the care of household needs, the mothers are not doing other activities. Thus the income of the economy comes only from the husband. Efforts to empower the small economy of households by mothers in Bunulrejo Subdistrict through dry snack business activities provide opportunities to increase family income. The results of this partnership program have given skill enhancements to produce snacks such as peanuts, banana molen sale, and cheese sticks. The challenges faced in this empowerment are efforts to increase self-confidence and entrepreneurial spirit, efforts to expand market and capital network, efforts to maintain product quality and market competitiveness. Efforts are taken by preparing a simple accounting module, marketing module, product quality standard and marketing assistance online and offline.

Key words : competitiveness, small economy, Housewife (IRT), marketing
PKM PALAPA (Pembuatan Aplikasi Laporan Perkembangan Anak) Kelompok A Pada TK An Shal Kecamatan Kamal Kabupaten Bangkalan
Authors: Wijayanti Rica
Published: January 2019

Kindergarten is one of the levels of education that began to be promoted by the government before going through the elementary school level. Based on preliminary observations made by service providers at the AN-SHAL Kindergarten, it appears that some children have developed according to the stage of development of their children, but some children are far behind. This is a problem at the school. Children whose development is still below average have lazy tendencies when given assignments both at school and at home. One of the efforts made by the teacher at the AN-SHAL Kindergarten was to make a letter to parents whose children had problems. However, the effort seemed to be a waste because most of their parents could not attend and those present were the caregivers who were in charge of delivering and picking up the children. This difficulty is felt by teachers because most parents of their students are busy working. As a result, the problem of children who are lazy to do tasks continues. The solution given in this community service program is to make an android child development report application. The method used is using the development method. The making of this application was developed from a report on child development in the form of a manual into an application with the help of an android developer kit application and java SE. The results of this service show that the applications made get positive responses from users, namely the teachers and parents of students. From the distribution of questionnaires given to users as much as 95% said this application is very effective to use and can help users to control the development of children.