bluuebunny/crossref_metadata_2025 huggingface dataset:
A Design Comparison of Castellated Beam for Different Parameters
Authors: Agrawal Vimlesh , Bhatt Darshana
Published: January 2018

Castellated Beams made from steel I Sections are being extensively used in structural applications because it has high moment of inertia and high strength to weight ratio. This paper is concerned with the comparison of castellated beam with solid beam, also carried out for same loading and geometric condition. Parametric study is done by changing various parameters of castellated beam like shape of opening, welded length, ratio of depth of opening to total depth and angle of cut. By comparing castellated beam with solid beam it is concluded that solid beam required higher section.
The Poetic Word of Fernando de Herrera: An Approach Through Corpus And Computational Linguistics
Authors: Hernández Lorenzo Laura
Published: January 2018

Great advances in Corpus Linguistics have led to new approaches in Literary Studies. This paper applies these new tools to the analysis of Golden Age Spanish poetry written by Fernando de Herrera, the author of Anotaciones a Garcilaso de la Vega (1580) and one of the greatest poets of his time. Through a keyword method combined with lexical concordances, we will try to overview principal characteristics and differences between subgenres in Herrera’s poetry, dealing with the poems he published in life (known as H) and getting results which help in the academic debate about this poet’s works and style.
Supracorpora Databases as Corpus-Based Superstructure for Manual Annotation of Parallel Corpora
Authors: Kruzhkov Mikhail
Published: January 2018

This paper presents a new type on corpus-based information resource: supracorpora databases (SCDBs). SCDBs are designed to enhance functionality of linguistic corpora by supporting customizable manual annotation of linguistic items, including multi-word items. This is similar to query result categorization functions available in some corpora and to functions provided by some of the standalone corpus annotation tools, although many features supported by SCDBs are more sophisticated (e.g. they allow for detailed annotation of multi-word linguistic items, including specification of main words and immediate context). More importantly still, SCDBs allow researchers to create annotated translation correspondences (TCs) in parallel corpora. Aggregation of searchable TCs in a SCDB represents a unique information resource that facilitates creation of new explicit knowledge about cross-linguistic correspondences and translation models. An overview of four SCDBs developed up to date is also included in this paper.
A combined model-based and data-driven approach for monitoring smart buildings
Authors: Khorasgani Hamed , Biswas Gautam
Published: January 2018

This paper combines a residual-based diagnosis approach and an unsupervised anomaly detection method to develop a hybrid methodology for monitoring smart buildings for which complete models are not available. The proposed method combines data mining approach and model-based diagnosis to update a diagnosis reference model and improve the overall diagnostics performance. To estimate the likelihood of each potential fault in complex systems like smart buildings, the dependencies between components and, there- fore, the monitors should be considered. In this work, a tree augmented naive Bayesian learning algorithm (TAN) is used for the classification. We demonstrate and validate the proposed approach using a data-set from an outdoor air unit (OAU) system in the Lentz public health center in Nashville.
An Introduction to Using Corpora with EFL Learners
Authors: Donnellan Mark
Published: January 2018

The use of corpora in the classroom represents an innovative way to enable English language learners to undertake independent study of lexical and grammatical patterns; however, only a limited amount of investigation into the use of corpora with students exists. This paper will first briefly introduce pertinent literature, which will give a basic overview of corpus linguistics. The paper will report on the use of the British National Corpus (BNC) and other corpus tools with students in a semester long course in a Japanese university with advanced EFL learners. These students undertook a series of tasks and projects, which allowed them to achieve the overall course goal of being able to conduct independent research into lexical and grammatical patterns. In order to assess student progress and to gather student opinions about the course and the use of corpora, data was collected in two ways: pre and post CEFR style student self-assessments, and a course reflection and evaluation survey. The results indicated that the students had progressed throughout the semester and that they had a largely positive opinion of the course. In concluding the paper, suggestions for teachers wishing to use corpora and corpus tools with their students will be offered.
Influence of Mall on Trip Generating Area
Authors: Bali Neha , Zala Laxmansinh B.
Published: January 2018

Trip Attraction is vital for planning of transportation facilities. It is utmost important for the planner to consider the influence of various development. The basic purpose of trip generation is to determine the number of trips that are generated or attracted to different zones. This paper seeks to build a suitable trip generation and attraction models for the selected malls of Vadodara city. Pilot survey has been done in order to determine trip attraction towards each mall. The analysis for the same is done through TransCAD software.
Seismic Performance Evaluation of RCC Buildings with Different Structural Configurations
Authors: Parmar Mohit K. , Mevada Snehal V. , Patel Vishal B.
Published: January 2018

This paper explores the comparative study of building performances at its performance points with two different response reduction factors. RCC Building with Bare Frame, RCC Building with Shear Wall and RCC Building with Stiffness Asymmetry, these three types of buildings are used for obtaining better objective of the study. Pushover Analysis is performed in SAP2000 to get performance of the building.
A BIM Based Lighting Analysis for Evaluating Saving Potential in Lighting Cost During Project Cycle
Authors: Shah Akash , Chovatiya Pranav , Shah Niyati
Published: January 2018

In today’s world, it is very difficult to manage the complex construction project with traditional project management system. BIM (Building Information Modelling) is one of most useful recent development in Construction Industry which helps in visualizing virtual building model to find future defects in design, to reduce cost, to increase productivity and quality etc. Big projects are required to carry out work during night also. So, it becomes vital to provide sufficient Lighting considering economics as well. With the use of BIM, the saving potential in lighting cost can be found out. In this research paper one case study of lighting analysis of residential project is taken which shows the benefits in energy cost savings.
Interdisciplinary Cooperation in the Analysis of Specialized Discourse: Challenges and Prospects
Authors: Gotti Maurizio
Published: January 2018

The purpose of this paper is to investigate some of the challenges and prospects connected with interdisciplinary cooperation in the analysis of specialized discourse. In the last few decades, the ESP literature has often underlined the importance of this type of collaboration, highlighting the usefulness of the integration of methodological diversity, the exploration of possible connections among procedures and knowledge in order to achieve more focused interpretation and purposeful action. This interdisciplinary process is considered fundamental to better understand how practitioners use language to achieve the objectives of their professions.

However, this collaborative experience may also present serious challenges both to the applied linguist and the expert professional, which can only be faced by means of a careful alignment of the specialist’s perspective with the analyst’s approach, and a continuous process of feedback and triangulation that guarantees inter-analytic reliability of the research project. This negotiation of the findings also avoids the insurgence of the practitioners’ skepticism towards the research results and therefore their limited impact on professional practice.
Comparative Study of Direct Displacement Based and Forced Based Design Method for RC- Frame with Shear Wall
Authors: Chaudhri Bijal , Patel Dipali
Published: January 2018

The Seismic design of structure has conventionally been force based. Displacement is the major factor for the damage rather than force. The alternative procedure for seismic design, which becomes more popular, is performance based design method. Displacement is global parameter of performance based design method. Direct displacement based design method has been used for seismic design of structure. The paper attempts to design moment resisting RC-frame using Displacement based design method and Forced based design method. 15-storey building with shear wall has been taken for parametric study. The parameter like base shear and lateral load distribution are taken for the study. It is observed that base shear of RC building calculated by DDBD is less compared to FBD.
Impact Resistance of Geopolymer Concrete Containing Recycled Plastic Aggregates
Authors: Dave Shemal , Bhogayata Ankur , Arora Dr. Narendra
Published: January 2018

This paper represents test results of impact resistance of geopolymer concrete (GPC) containing recycled plastic aggregates (RPA). Natural fine aggregates of 10mm size were partially replaced by RPA in varying proportions. Impact resistant offered by GPC was obtained by performing drop hammer test conforming to suggestions by ACI 544.2R-89. The test results revealed excellent improvement of impact resistance and energy absorption at 10% replacement of natural aggregates by RPA. The experimental evaluation of GPC modified by RPA, demonstrated potential for novel usage of waste plastic with GPC towards the development of sustainable construction material.
An Asymptotic Formula of Modified Family of Positive Linear Operators
Authors: Patel Prashantkumar , Mishra Vishnu Narayan
Published: January 2018

In 2016, Patel and Mishra introduce the operators which is generalization of well-known Szasz- Mirakyan operators. In this manuscript, we have discussed Voronovskaja asymptotic of Stancu type generalization of the operators defined by Patel and Mishra.
A Corpus-Attested View of Business English Metaphors
Authors: Milojkovic Marija
Published: January 2018

Louw’s (2009) idea to create a corpus-attested dictionary of literary terms may initially involve analysing uncontested examples of irony, antithesis and the like, in corpus terms. The paper analyses non-literal expressions in a Guardian business text against the background of the corpus-attested definition of metaphor, arrived at through the detailed analysis of two metaphors in Yeats’s ‘The Circus Animals’ Desertion’ by means of Louw’s Contextual Prosodic Theory (CPT) (Milojkovic 2016). Given that the delexical expressions in the Guardian text are not meant to convey any meanings other than explicit, and that their relexicalisation may be achieved only through other delexical expressions, the paper suggests that they be called delexical rather than metaphorical.
The World War I Poets as a Brand and the Corpus-Derived Empiricism of Their Subtext
Authors: Louw William , Milojkovic Marija
Published: January 2018

Scientific approaches to the explication of poetry have been around since antiquity. However, whilst the apparent deeds of mankind at war are often full of pagan sentiments such as ‘Dulce et decorum est pro patria mori…’, protests at the very notion of war are often brushed aside by society. But can we rely upon the logical empiricism of the whole language, as represented by a reference corpus, to be the latent apologist for our deepest sentiments and to express them by the probability of induction alone? In common with the business theme of our conference, this paper will examine the brand of the War Poets, and in particular of some of Wilfred Owen’s ‘first lines’, as we recall that in business, the ethos of a ‘… brand of something such as a way of thinking or behaving is a particular kind of it (Cobuild English Language Dictionary, Second Edition, 1995). In this paper, the collected subtexts of the War Poets will be used to create their brand, beyond what used to be called analogue induction, beyond the information given (Bruner, 1974).
Graded Acceptance in Corpus-Based English-to-Spanish Machine Translation Evaluation
Authors: Crespo Miguel Mario , Sanchez-Saus Laserna Marta
Published: January 2018

Traditionally, texts provided by machine translation have been evaluated with a binary criterion: right or wrong. However, in certain cases it is difficult to provide a clear-cut division between fully acceptable and fully unacceptable texts. In this paper we have selected group of different bilingual, human-translated English-to-Spanish pairs of sentences from parallel corpora (Linguee) and a group of machine translated texts with problematic linguistic phenomena in English-to-Spanish translation: polysemy, semantic equivalents, passive, anaphora, etc. We presented the translations to a group of native speakers that evaluated them in different levels of acceptability. Results show the degree of applicability of this approach.
Analysing Four Prosodic Forms to Convey the Pragmatic Function of Dominance and Control in L2 Monologic Discourse.
Authors: Jimenez-Vilches Raul
Published: January 2018

This paper reports the findings from a study of the learning of English intonation by Spanish speakers within the discourse mode of L2 oral presentation. The purpose of this experiment is, firstly, to compare four prosodic parameters before and after an L2 discourse intonation training programme and, secondly, to confirm whether subjects, after the aforementioned L2 discourse intonation training, are able to match the form of these four prosodic parameters to the discourse-pragmatic function of dominance and control. The study designed the instructions and tasks to create the oral and written corpora and Brazil’s (1994) Pronunciation for Advanced Learners of English was adapted for the pedagogical aims of the present study. The learners’ pre- and post-tasks were acoustically analysed and a pre / post- questionnaire design was applied to interpret the acoustic analysis. Results indicate most of the subjects acquired a wider choice of the four prosodic parameters partly due to the prosodically-annotated transcripts that were developed throughout the L2 discourse intonation course. Conversely, qualitative and quantitative data reveal most subjects failed to match the forms to their appropriate pragmatic functions to express dominance and control in an L2 oral presentation.
El aula intercultural: Análisis contrastivo de las expectativas de alumnos de diferentes nacionalidades ante un curso de IFE. Estudio de un caso.
Authors: López Zurita Paloma
Published: January 2018

Las políticas de movilidad universitaria facilitan la incorporación a las clases de inglés de alumnos de diferentes nacionalidades. El programa de Inglés aplicado a la Publicidad y las Relaciones Públicas de la Universidad de Cádiz ha tenido tradicionalmente al alumnado español como meta. Sin embargo, la incorporación de estudiantes de otros países en el aula la ha configurado como un espacio multicultural donde conviven diferentes concepciones de la realidad que se trasladan al proceso enseñanza-aprendizaje a través de distintas actitudes, conductas o percepciones frente a los mismos temas (Byram, Nichols & Stevens, 2001). La fusión de estas diferencias crea un espacio multicultural del que los alumnos se pueden enriquecer y aprender, teniendo el inglés como lengua vehicular y motivándolos a percibir la publicidad desde la mirada del otro. El objetivo de este trabajo es identificar sus expectativas según su nacionalidad y formación previa, a través de un cuestionario que identifique sus diferentes niveles, opinión sobre la pertinencia del programa y expectativas ante el curso. El análisis se dará a conocer al propio alumnado, favoreciendo el conocimiento sobre la identidad cultural del resto y su influencia en la visión de la publicidad. Así, se facilita el conocimiento del “otro”, modificando, en su caso, los posibles estereotipos y/o prejuicios sobre los distintos grupos culturales y creando un espacio común de convivencia donde el interés por conocer las otras realidades dentro de un marco común de aprendizaje de inglés les sirva de motivación para desarrollar su competencia comunicativa, lingüística e intercultural. Los resultados llevarán a la revisión de los contenidos y metodología de la asignatura, orientándonos hacia un ajuste de los mismos que dé respuesta a las necesidades detectadas, dadas las importantes implicaciones que estas diferentes concepciones tienen en un mundo publicitario global como en el que vivimos hoy en día.
Evolution of ENSO Related Rainfall Anomalies for Lower Tapi River, India
Authors: Baria Paresha , Yadav Sanjaykumar M.
Published: January 2018

The present study is an attempt to detect anomalies in rainfall for lower Tapi basin due to ENSO events. Daily rainfall data have been used for the present analysis. The data have been collected from state water data centre from 1961 to 2001. With the availability of suitable data 1982, 1986, 1987, 1991, 1997, 2002 and 2009 are the El Nino years and 1988, 1998, 1999, 2007 and 2010 are the La Nina years analysed for the present study. The yearly extreme precipitation indices have been computed for frequency, intensity and duration for the base period 1981 to 2010. For the El Nino years 1997 and 2009 positive anomalies have been observed in the frequency based indices. In the years 1982, 1987, 1991, 1997, 2002 and 2009, positive anomalies have been observed for the intensity based indices. Positive anomalies results into better rainfall during El Nino events. Negative anomalies have been observed in the years 1998 and 1999 of the La Nina events for the frequency based indices and for the years 1988, 1998, 1999, 1007 and 2010 negative anomalies have been observed in the intensity based indices. The analysis of La Nina events results in a decrease in rainfall. The precipitation duration based indices have not indicated clear trend. The overall analysis showed that ENSO is not directly affecting the rainfall of the study region.
Municipal Solid Waste Management of Medium Scale Town of South Gujarat Region
Authors: Prajapati Anjali , Pamnani Arti
Published: January 2018

In Municipal solid waste disposal is a burning issue around the world. Increase of the population and change in lifestyle are finding their way out to manage for a fight quantum increase in MSW. Due to least priority of the governing body in developing country like India, it is much tougher to have a sustainable management system for MSW. Town in India is characterizing as per population. This paper gives detail studied with segregation and sustainable management of waste composition was suggested for MSW in the medium scale town of the south Gujarat region in India. Route study of the MSW transportation is also done so as optimum route can be suggested with the quantity of waste in minimum cost.
Modeling and Simulation of Vote Length Analysis for Probabilistic Voting-based Filtering in Wireless Sensor Networks: Against False report and vote injection attacks
Authors: Nam Su Man , Cho Tae Ho
Published: January 2018

In large-scale wireless sensor networks, sensors are vulnerable to false report and false vote injection attacks since they are deployed in hostile environments. These attacks drain their limited energy resources of forwarding nodes and drops important data. Probabilistic voting-based filtering scheme simultaneously detects both the attacks through vote verification. To effectively detect them, it is important to define the vote length of the reports since the vote length is fixed at the initial phase. We find the effective vote length using a simulation model since it is nearly impossible to evaluate the security protocol performance on the real nodes. We demonstrate that the security protocol, in which the vote length is five, achieves better detection ratio against the two attacks.
Seeking the Portuguese Vocabulary Profile
Authors: Torigoe Shintaro
Published: January 2018

This paper reports on a pilot study from the Portuguese Vocabulary Profile project. In this pilot study, a vocabulary list for learners of Portuguese was developed by analysing learner corpora, an approach inspired by CEFR-based wordlists, such as the English Vocabulary Profile. A draft wordlist was constructed from two learner corpora of L2 Portuguese, the Corpora do PLE and the Corpus de PEAPL2. The draft wordlist was then compared to the LMCPC, a wordlist derived from a million-word native speaker corpus, in order to investigate differences between learners and native speakers and to identify aspects of the wordlist needing improvement. The pilot study indicated that the use of Portuguese by the Intermediate and Advanced learner is quite different from that of native speakers and that learner’s language use was affected by data collection tasks and learning environments.
Secure state estimation for Cyber-Physical Systems
Authors: Fiore Gabriella
Published: January 2018

In Cyber-Physical Systems (CPSs), physical processes, computational resources and communi- cation capabilities are tightly interconnected. Traditionally, the physical components of a CPS are described by means of differential or difference equations, while the cyber components are modeled by means of discrete dynamics. Therefore, hybrid systems, that are heterogeneous dynamical sys- tems characterized by the interaction of continuous and discrete dynamics, are a powerful modeling framework to deal with CPSs. Motivated by the great importance of security issues for CPSs, we characterize the observability and diagnosability properties for hybrid systems in the general case where the available information may be corrupted by an external attacker. Then, as CPSs are found in a wide range of applications, we demonstrate how to estimate the continuous state by simulating two scenarios: the control of a Direct Current (DC) Microgrid, and the control of a network of Unmanned Aerial Vehicles (UAVs) cooperatively transporting a payload.
A Few Things We Heard About RV Tools (Position Paper)
Authors: Hallé Sylvain , Khoury Raphael , Gaboury Sebastien
Published: January 2018

Over the past five years, we have met with representatives of more than a dozen companies in various domains, trying to showcase the features of our runtime verification tool. These meetings gave us some very instructive feedback about the way RV is perceived by people from the industry, and about the shortcomings of current RV solutions. In this paper, we discuss a few of the comments we heard, and use them to suggest new ways of developing and evaluating RV tools in the future.
PENGARUH PEMBELAJARAN BERBASIS MULTIPLE INTELLIGENCES TERHADAP KESADARAN METAKOGNISI DAN HASIL BELAJAR IPA BIOLOGI SISWA KELAS VIII SMPN 11 MATARAM
Authors: Nufus Siti SyifaÃ¢â¬â¢un , Jamaluddin Jamaluddin , Bachtiar Imam
Published: January 2018

Abstrak. Pembelajaran berbasis multiple intelligences merupakan pembelajaran yang dapat mengakomodasi tumbuh dan berkembangnya kecerdasan jamak. Tujuan penelitian ini adalah untuk mengetahui pengaruh pembelajaran berbasis multiple intelligences terhadap kesadaran metakognisi dan hasil belajar IPA Biologi siswa. Jenis penelitian ini adalah eksperimen semu (quasy experiment). Populasi penelitian ini adalah siswa kelas VIII SMPN 11 Mataram tahun ajaran 2015/2016, dan penentuan sampel dilakukan dengan teknik non random sampling sehingga didapatkan kelas VIIIA sebagai kelas eksperimen dan kelas VIIIF sebagai kelas kontrol. Instrumen yang digunakan untuk mengukur pembelajaran berbasis multiple intelligences adalah lembar observasi keterlaksanaan RPP, kesadaran metakognisi diukur dengan rubrik MAI (Metacognitive Awareness Inventory) dan penilaian hasil belajar IPA Biologi menggunakan tes pilihan ganda. Data dianalisis menggunakan uji-t. Hasil penelitian menunjukkan bahwa pembelajaran berbasis multiple intelligences memberikan pengaruh yang lebih baik terhadap kesadaran metakognisi dan hasil belajar siswa kelas VIII SMPN 11 Mataram dibandingkan dengan pembelajaran konvensional.ÃÂ Kata-kata Kunci: Pembelajaran Berbasis Multiple Intelligences, Kesadaran Metakognisi, Hasil Belajar IPA BiologiÃÂ Abstract. Multiple-Intelligences-Based (MIB) instruction is an instruction applied to encourage studentsÃ¢â¬â¢ growth and development of multiple intelligence. This study aims to investigate the effect of MIB instruction theory on metacognition awareness and learning outcome in Biology instruction of students. A quasi experimental design was used. Non random sampling was applied based on the research population that covered the student of SMPN 11 Mataram, which resulted VIIIA as the experimental class and VIIIF as the controlled class. In order to determine the effect of MI-based instruction compared with traditional instruction, observation sheets were utilized to assess lesson plan accomplishment. In order to assess the metacognition awareness of the learners in Biology subject, the Metacognitive Awareness Inventory (MAI) was employed and to assess the Biology learning outcome that consisted of multiple-choice test. A t-test for independent sample was used to compare experimental and control groups post-test results. The results of the study indicated that MIB instruction had a significant effect on metacognition awareness and Biology learning outcome of VIII grade students of SMPN 11 Mataram compared with conventional instruction.Keywords: Multiple-Intelligences-Based instruction, metacognition awareness, Biology learning outcome.
PEMBELAJARAN BERBASIS MULTIMEDIA INTERAKTIF UNTUK MENINGKATKAN KETERAMPILAN GENERIK SAINS CALON GURU FISIKA
Authors: Gunawan Gunawan
Published: January 2018

Abstrak. Tujuan penelitian ini adalah menguji pengaruh penerapan model pembelajaran fisika berbasis multimedia interaktif terhadap keterampilan generik sains mahasiswa pada konsep elastisitas. Penelitian ini merupakan penelitian eksperimen dengan subjek mahasiswa jurusan pendidikan fisika yang sedang mengikuti perkuliahan fisika dasar. Data dikumpulkan melalui tes keterampilan generik sains. Analisis data menggunakan uji beda rata-rata dan skor gain yang dinormalisasi. Penelitian ini menunjukkan bahwa keterampilan generik sains mahasiswa kelompok eksperimen lebih baik dibandingkan kelompok kontrol. Model pembelajaran fisika berbasis multimedia interaktif dapat meningkatkan kemampuan mahasiswa dalam inferensi logika dan membangun konsep.Keywords: Multimedia Interaktif, Keterampilan Generik Sains, Konsep Elastisitas.ÃÂ Abstract. The aim of this study is examines the effects of applying an interactive multimedia based physics instruction on studentsÃ¢â¬â¢ science generic skills in elasticity concepts. This is an experimental research with research subject was students at physics education department that following introductory of physics course. Research data were collected by using generic skills achievement test. Data were analyzed by using mean-difference test and normalized gain scores. Research findings showed that the studentsÃ¢â¬â¢ generic skills in introductory physics course for experimental group better than control group. Interactive multimedia based physics instruction can be increases the studentsÃ¢â¬â¢ logic inference skills and built concepts skills.Keywords: Interactive Multimedia, Science Generic Skills, Elasticity Concepts.
EFISIENSI INHIBITOR PADA KOROSI Cu-37Zn
Authors: Junaidi Eka
Published: January 2018

Abstrak : Salah satu upaya pencegahan korosi pada logam dapat dilakukan dengan penambahan inhibitor ke dalam larutan uji. Inhibitor korosi yang dicoba adalah benzotriazol (BTAH) dan sistein (Cys). Penentuan laju korosi Cu-37Zn tanpa dan dengan adanya inhibitor korosi dilakukan secara elektrokimia dengan menggunakan teknik Electrochemical Impedance Spectroscopy (EIS). Hasil penelitian ini menunjukkan bahwa pada larutan uji dengan komposisi : 5,3 ppm Ca(NO3)2, 78 ppm NaCl dan ion sulfida sebesar 15 ppm diperoleh bahwa efisiensi benzotriazol (80 ppm) dan sistein (25 ppm) pada suhu kamar berturut-turut sebesar 40,74% dan 68,16%. Inhibitor yang di uji dalam penelitian ini teradsorpsi secara fisik pada permukaan logam Cu-37Zn dengan energi bebas adsorpsi (ÃâGads) benzotriazol dan sistein berturut-turut adalah Ã¢â¬â18,53 dan Ã¢â¬â23,03 kJ/mol.ÃÂ Kata kunci : Inhibitor, EIS, Benzotriazol, SisteinÃÂ Abstract : An effort to prevent of the corrosion can be performed by mean of inhibitor corrosion addition into the sample of water. We also investigated benzotriazole (BTAH) and cysteine (CYS) as inhibitor. The rates of corrosion Cu-37Zn in absence and presence of the corrosion inhibitor were determined by using Electrochemical Impedance Spectroscopy (EIS) technique. The obtained results were indicated that at sample of water with composition of 5.3 ppm Ca(NO3)2, 78 ppm NaCl and 15 ppm sulfide ion,ÃÂ  the inhibitor efficiency of benzotriazole (80 ppm) and cysteine (25 ppm) at room temperature were 40.74% and 68.16% respectively. Since both inhibitors were physicaly adsorbed on Cu-37Zn with adsorption free energy (ÃâGads)of benzotriazole and cysteine is Ã¢â¬â18.53 kJ/mol and Ã¢â¬â23.03 kJ/mol respectively.ÃÂ Keywords : Inhibitor, EIS, Benzotriazole, cysteine.
AKTIVITAS ANTIBAKTERI METABOLIT SEKUNDER PADA KULIT BATANG GELUMPANG (Sterculia foetida L.)
Authors: Ulfa Maria , Rasmi Dewa Ayu Citra
Published: January 2018

ABSTRAK: Telah dilakukan ekstraksi dan identifikasi metabolit sekunder kulit batang Gelumpang (Sterculia foetida L.) dengan metode maserasi dan penapisan fitokimia menggunakan metode Ciulei. Kulit batang Gelumpang dimaserasi menggunakan pelarut n-heksan, DCM, metanol dan air. Gelumpang banyak digunakan sebagai obat sembelit dan encok. Untuk mendukung pemakaian secara empirik maka pada penelitian ini dilakukan uji penapisan metabolit sekunder dan uji aktivitas antibakteri terutama pada Staphyococcus aureus secara in vitro. HasilÃÂ  penapisan menunjukkan ÃÂ kandungan kimia dariÃÂ  ekstrak kulit batang Gelumpang adalah tanin, minyak atsiri, sterol, triterpen, kumarin dan flavonoid. Hal ini diperkuat dengan data KLT (eluen n-heksan:DCM = 8:12). Ekstrak kulit batang Gelumpang mempunyai daya antibakteri terhadap S.aureus dengan diameter daerah hambat (DDH) 2,4 mmÃÂ ÃÂ  ÃÂ (n-heksan); 4,6 mm (DCM);ÃÂ  7,4 mm (metanol) dan 1,7 mm (air). Kata kunci; Gelumpang, Penapisan fitokimia, KLT, S. aureusABSTRACT: Extraction and identification of secondary compound Gelumpang (SterculiaÃÂ ÃÂ ÃÂ  foetida L.) stem bark by maseration and screening phytochemical (Ciulei method) were carried out. Maseration using n-hexane, dichloromethane (DCM), methanol and aquadest were employed. Gelumpang are often used as traditional medicine for stomach upset or colic andÃÂ  rheumatic. To support this utilization, this experiment was done to analyse the secondary compounds and to test antibacterial activity of Staphyococcus aureus. The results show that secondary compounds in Gelumpang extract were tannin, essencial oil, sterol, triterphenoid, cumarin and flavonoid. This is supported by TLC data (eluen n-hexane:DCM = 8:12). Gelumpang stem bark extract has antibacterial activity on S. aureus. This was shown by 2,4 mm (n-hexane); 4,6 mm (DCM); 7,4 mm (methanol) and 1,7 mm (aquadest) of the diameter of inhibition area.Key Words; Gelumpang, screening phytochemical, TLC, S. aureus
PEMBELAJARAN KOOPERATIF BERKIRIM SALAM DAN SOAL UNTUK MENINGKATKAN AKTIVITAS DAN HASIL BELAJAR MAHASISWA PENDIDIKAN MATEMATIKA FKIP UNRAM PADA MATA KULIAH KIMIA DASAR
Authors: Anwar Yunita Arian Sani , Haris Mukhtar
Published: January 2018

Abstrak : Penelitian ini bertujuan untuk meningkatkan aktivitas dan hasil belajar mahasiswa semester 2 Program Studi Pendidikan Matematika FKIP Unram tahun akademik 2008/2009 pada mata kuliah kimia dasar denganmenggunakan pembelajaran kooperatif berkirim salam dan soal. Penelitian ini dilaksanakan dalam 2 siklus. Kriteria keberhasilan penelitian adalah aktivitas mahasiswa aktif dan sangat sedikit mahasiswa yang mengalami kesalahankonsep. Hasil penelitian menunjukkan pembelajaran kooperatif berkirim salam dan soal dapat meningkatkan aktivitas dan hasil belajar mahasiswa. Pada siklus I sebanyak 52,10% mahasiswa mengalami kesalahan konsep dan setelahsiklus II menurun menjadi 18,15%. Aktivitas mahasiswa pada siklus I pada kategori kurang aktif dan setelah siklus II meningkat menjadi aktif.Kata kunci : Pembelajaran kooperatif, aktivitas, hasil belajar.Abstract : The research has been done to improve activity and academic achievement of second semesterstudents of mathematics education program FKIP University of Mataram academic year 2008/2009 in general chemistry subject through cooperative learning exchanging greetings and questions. There were two cycles of learning in the research. The criteria of the success of the research are student activities were active and misconception student on low level. The results indicated that cooperative learning berkirim salam dan soal can improve activity and academic achievement students. In the first cycle was 52,10% students has misconception and in the second cycle has 18,15%.Criteria students activity in first cycle was very low and in the second cycle students activity was active.Key words : Cooperative learning, activity, academic achievement.
PENGARUH PEMBERIAN DESAIN PRA-LAB TERHADAP KEMAMPUAN MAHASISWA DALAM MEMAHAMI KONSEP HUKUM II NEWTON TENTANG GERAK
Authors: Makhrus Muh. , Wahyudi Wahyudi
Published: January 2018

Abstrak : Penelitian ini bertujuan untuk mengetahui hasil belajar mahasiswa dan untuk mendeskripsikan kemampuan mahasiswa dalam melakukan eksperimen terutama pada saat desain pra-lab dengan langkah-langkah metodeilmiah serta untuk mengetahui respon mahasiswa terhadap pelaksanaan desain pra-lab dengan langkah-langkah metode ilmiah. Penelitian ini menggunakan rancangan Pretest-Posttest Control Group Design. Hasil pengamatandan analisis data diperoleh temuan antara lain, kemampuan mahasiswa dalam melakukan eksperimen dengannpemberian desain pra-lab yang berdasarkan langkah-langkah metode ilmiah adalah baik, serta mahasiswa senangdan berminat terhadap eksperimen dengan menggunakan desain pra-lab. Hasil penelitian yang menerapkan perangkat pembelajaran ini dapat meningkatkan proporsi jawaban benar mahasiswa untuk THB Produk sebesar 55 % dan dari hasil analisis statistik uji-t, diperoleh bahwa hasil belajar produk mahasiswa yang diberikan desain pralab dengan langkah-langkah metode ilmiah adalah lebih baik dari hasil belajar mahasiswa yang diberikan dengan desain pra-lab yang biasa.Kata kunci : desain, pra-lab, hukum II Newton, gerakAbstract : This research intent on know product study and describe ability of university student in doing experiment especially at the moment pre-lab design with steps in scientific method and for know respons to implementation this method. This research is designed using Pretest-Posttest Control Group Design. The result of monitoring and data analysis found that ability of university student in doing experiment by use of pre-lab design with steps in scientific method are excellent. The university students are also happy and having good interest to the training of skilled eksperiment with pre-lab design. The process of studying that implement this method can increase the proportion of correct answer for result examination 55 %, while proportion correct answer for examination result. From result of statistic analysis t-test found that the examination result product of student which is taught through pre-lab design with steps in scientific method is better than conventional pre-lab design.Key words : design, pre-lab, Newton II law, motion
PENGEMBANGAN PERANGKAT PEMBELAJARAN BERBASIS CTL PADA MATERI POKOK CAHAYA UNTUK MENINGKATKAN PRESTASI BELAJAR SISWA KELAS VIII SMP NEGERI 1 KURIPAN
Authors: Yunita Erni , Wahyudi Wahyudi , Rahayu Satutik
Published: January 2018

Abstrak. Penelitian ini bertujuan untuk mengembangkan perangkat pembelajaran berbasis CTL pada materi pokok cahaya dan mengetahui pengaruh penerapan perangkat pembelajaran tersebut terhadap prestasi belajar fisika siswa kelas VIII. Penelitian ini adalah Quasi eksperimental dengan menggunakan metode penelitian R&D. Subjek penelitian ini adalah seluruh siswa kelas VIII SMP Negeri 1 Kuripan. Data yang diperoleh dianalisis menggunakan uji t pada taraf signifikan 5%. Rata-rata nilai N-Gain diperoleh melalui data posttest dan pretest. Hasil peneilitian menunjukkan bahwa penerapan perangkat pembelajaran berbasis CTL yang telah dikembangkan pada materi pokok cahaya berpengaruh terhadap peningkatkan prestasi belajar fisika siswa kelas VIII.ÃÂ Kata Kunci: Pengembangan, Perangkat Pembelajaran Berbasis CTL, Prestasi Belajar.Abstract. The aims of this research is to develop CTL based instructional instrument on light conceptÃÂ  and to know the effect of CTL based instructional instrumentÃ¢â¬â¢s application to increase eighth years student physics achievement. The design is a quasi-experimental research and used R&D method. Research subject was eighth years students at Junior High School 1 Kuripan. Data were analyzed using t test at significant level 5%. The average value of N-Gain obtained through pretest and posttest data. This indicates that the application of CTL based instructional instrument on light concept has effect to increase eighth student physics achievement. ÃÂ Keywords: Development, CTL Based Instructional Instrument, Learning Achievement.
PENERAPAN MODEL PEMBELAJARAN BERBASIS PORTOFOLIO UNTUK MENINGKATKAN AKTIVITAS DAN HASIL BELAJAR MAHASISWA PROGRAM STUDI PENDIDIKAN MATEMATIKA FKIP UNRAM MATA KULIAH REVIEW CURRICULUM AND CONTENT OF MATHEMATICS
Authors: Hayati Laila , Turmuzi M. , Azmi Syahrul
Published: January 2018

Abstrak: Penelitian ini bertujuan untuk menerapkanÃÂ  model pembelajaran berbasis portofolio yang dapat meningkatkan aktivitas dan hasil belajar mahasiswa semester IV pada mata kuliah Review Curriculum and Content of MathematicsÃÂ  di program studi pendidikan matematika FKIP Universitas Mataram tahun akademik 2011/2012. Langkah-langkah yang dilakukan dalam pembelajaran berbasis portofolio adalah: mengidentifikasi masalah, memilih masalah untuk kajianÃÂ  kelas, mengumpulkan informasi, membuat portofolio kelas, penyajian portofolio dan refleksi pada pengalaman belajar dengan mengambil kesimpulan dan penilaian. Penelitian tindakan kelas ini dilakukan sebanyak 3 siklus. Hasil penelitian menunjukkan bahwa terjadi peningkatan nilai rata-rata dari siklus 1 ÃÂ ke siklus 3, yaitu 68,46; 78,65; dan 77,5. Ketuntasan belajarÃÂ  dari siklus 1 sampai siklus 3 secara berturut-turut 87,5%; 100%; dan 95,83%. Skor rata-rata aktivitas belajar adalah 3,29 dan 3,42 dengan kategori aktif pada siklus 1,ÃÂ  3,94 dan 3,82 dengan kategori sangat aktif pada siklus 2 , dan pada siklus 3 skor rata-ratanya 4 dengan kategori sangat aktif. Dari hasil tersebut dapat disimpulkan bahwa dengan menerapkan model pembelajaran berbasis portofolio dengan optimal dapat meningkatkan aktivitas dan hasil belajar mahasiswa semester IV pada mata kuliah Review Curriculum and Content of Mathematics.ÃÂ Kata kunci: Pembelajaran berbasis portofolio, aktivitas belajar, dan hasil belajar.ÃÂ ÃÂ ÃÂ ÃÂ ÃÂ ÃÂ Abstract: This study aims to implement a portfolio-based learning model that can improve the activity and student learning achievements on Review Curriculum and Content of Mathematics courses of the fourth semester mathematics education in FKIP Mataram University academic year 2011/2012. The steps taken in the portfolio-based learning are: identifying the problem, selecting issues for classroom study, gather information, create a class portfolio, portfolio presentation and reflection on learning experiences to draw conclusions and evaluation. Action research was carried out in 3 cycles. The results showed that an increase in the average value from cycle 1 to cycle 3, which is 68.46; 78.65, and 77.5. Mastery learning from cycle 1 to cycle 3 respectively are 87.5%, 100% and 95.83%. In cycle 1, the mean score of students' learning activities is 3.29 and 3.42 with active category,. in cycle 2, the mean score is 3.94 and 3.82 with a very active category, and the third cycle, the mean scor is 4 with very active category. From these results it can be concluded that by applying the portfolio based learning models can enhance the activity and student learning achievements of the fourth semester on Curriculum Review and Content of Mathematics course.Keywords: portfolio-based learning, learning activities, and learning achievements.
KORELASI ANTARA UMUR INKUBASI DENGAN TAHAP PERKEMBANGAN EMBRIO Chelonia mydas YANG DIINKBASI PADA SUHU INKUBASI YANG BERBEDA
Authors: Bahri Syamsul
Published: January 2018

Abstrak: Kecepatan perkembangan embrio Chelonia mydas dipengaruhi oleh suhu inkubasi. Embrio yang diinkubasi pada suhu 31ÃÂ±1ÃÂ°C (SF)ÃÂ  mencapai tahap 17 pada umur inkubasi 22-23 hari, tahap 19 pada umur inkubasi 26 hari, dan tahap 22 pada umur inkubasi 31 hari. Embrio yang diinkubasi pada suhu 26ÃÂ±1ÃÂ°C (SM)ÃÂ  mencapai tahap tahap 17 pada umur inkubasi 39-40 hari, tahap 19 pada umur inkubasi. 45 hari, dan tahap 22 pada umur inkubasi 52-53 hari. Hasil pengamatan terhadap struktur histologis gonad embrio menunjukkan bahwa gonad embrio tahap 17, 19, dan tahap 22 telah berupa gonad indiferen. Gonad-gonad pada tahap tersebut sudah dapat dibedakan menjadi bagian korteks dan bagian medula. Bagian korteks berupa epitel selapis silindris, sedangkan bagian medula mengandung jaringan ikat dan kelompok-kelompok sel. Bakal sel kelamin ditemukan pada bagian medula dan korteks. Dengan demikian dapat disimpulkan bahwa periode TSP Chelonia mydas yang diinkubasi pada suhu 31ÃÂ±1ÃÂ°C (SF)ÃÂ ÃÂ  terentang dari umur inkubasi 22 hari hingga umur inkubasi 31 hari, sedangkan periode TSP Chelonia mydas yang diinkubasi pada suhu 26ÃÂ±1ÃÂ°C (SF)ÃÂ ÃÂ  terentang dari umur inkubasi 39 hari hingga umur inkubasi 53 hari.Kata kunci: Chelonia mydas, TSP, umur inkubasi, suhu feminisasi, suhu maskulinisasiÃÂ Abstract: Embryonic development Rate of Chelonia mydas is affected by incubation temperature . The embryos were incubated at 31 ÃÂ± 1ÃÂ°C ( FT ) reached embryonic stage of 17th at 22-23rd of incubation day, embryonic stage of 19th at 26th of incubation day, and embryonic stage of 22nd at 31st of incubation day. The embryos were incubated at 26 ÃÂ± 1ÃÂ°C ( MT ) reached embryonic stage 17 th at 39-40th incubation day , embryonic stage 19 th at 45 th day of incubation , and embryonic stage 22nd at 52-53 rd incubation day. Observations on the histological structure of the gonadal embryos showed that the embryonic gonad stages 17th , 19th , and 22nd have been in indifferent stage. Gonads at this stage can be distinguished ÃÂ in two parts, cortex and medulla. Cortex as a layer of cylindrical epithelium, while the medulla consist of connective tissue andÃÂ  groups of cell. Primordial Germ Cells are found both in medulla and cortex . It can be concluded that the TSP of Chelonia mydas were incubated at 31 ÃÂ± 1ÃÂ°C ( FT ) extended from 22nd ofÃÂ  incubation day until the 31st of incubation day , whereas the TSP of Chelonia mydas were incubated at 26 ÃÂ± 1ÃÂ°C (MT) extended from 39th ofÃÂ  incubation day until the 53rd of incubation day.Key words: Chelonia mydas, TSP, feminization temperature, maskulinization temperature
EFEKTIVITAS MULTIMEDIA INTERAKTIF BERBASIS FLASH DAN MODEL 5E UNTUK MENINGKATKAN SIKAP TERHADAP SAINS SISWA SMP NEGERI 6 MATARAM
Authors: Usmiatiningsih Ellysabeth , Harjono Ahmad , Jufri A. Wahab
Published: January 2018

Abstrak: Penelitian ini bertujuan untuk mengetahui efektivitas dan pengaruh multimedia interaktif berbasis flash (MIBF) dan model 5E terhadapÃÂ  keterampilan berpikir kritis siswa. Desain penelitian eksperimen adalah pretest-postest non-equivalent control group dan setting pelaksanaan penelitian dengan rancangan faktorialÃÂ  2 x 2. Populasi penelitian adalah kelas VIII SMPN6 Mataram, sebanyak 196 siswa yang tersebar di 7 kelas. SampelÃÂ  dipilih dengan simple random sampling dan diperoleh 97 siswa yang tersebar di 4 kelas yakni kelas VIIIB menerapkan model pembelajaran 5E tanpa menggunakan MIBF, kelas VIIIC menerapkan model pembelajaran 5E dan menggunakan MIBF, Kelas VIIID menerapkan model pembelajaran 2EK tanpa MIBF, dan kelas VIIIE menerapkan model 2EK dan menggunakan MIBF. Hasil penelitian menunjukkan pengaruh penggunaan MIBF (F = 100,96, p = 0,00) dan model 5E (F = 65,46, p = 0,00) pada sikap terhadap sains. Terdapat pengaruh interaksi antara MIBF dan model 5E (F = 38,64, p = 0,00) terhadap keterampilan perpikir kritis dan terdapat pengaruh interaksi antara MIBF dan modelÃÂ  5E(F = 13,05, p = 0,00) pada sikap terhadap sains siswa. Maka dapat disimpulkan bahwa MIBF dan model 5E efektif meningkatkan sikap tergadap sains.Kata kunci: MIBF, model 5E, sikap terhadap sains.ÃÂ Abstract: The aim of this study was to know effectiveness and effect of flash based interactive multimedia (FBIM) and 5E model toward students attitudes toward science. Experimental research desain was pretest-postest non-equivalentÃÂ  control group and faktorialÃÂ  2 x 2. The population consist ofÃÂ  196 students spread in 7 classes. These classes are grade VIII in SMPN6 Mataram. Sample ÃÂ was choosen by using simple random sampling, Sample of this reseacrh consist ofÃÂ  97 students spread in 4 classes are grade VIIIB applied 5E model without FBIM grade VIIIC applied 5E model and FBIM, grade VIIID appliedÃÂ  2EK model without FBIM, and grade VIIIE applied 2EK model andÃÂ  FBIM Result of experiment reseach shows that there are significant effect of FBIM (F = 100.96, p = 0.00) and 5E model (F = 65.46, p = 0.00) on attitudes toward science. There are significant effect of interaction between FBIM and 5E model (F = 13.05, p = 0.00) on attitudes toward science. It can be concluded that FBIM and 5E model are effective to enhance students attitudes toward science.Keywords: Flash based interactive multimedia, 5E model, attitudesÃÂ  toward science.