bluuebunny/crossref_metadata_2025 huggingface dataset:
The Potential of Corpus Based Collocation Instruction on the Awareness Levels of the Turkish EFL Students in Terms of Reading Performances
Authors: Ozbay Ali Sukru
Published: January 2018

It is an old consensus by now that languages all throughout the world consist of prefabricated chunks or multi-word combinations which are important for EFL learners in their efforts to perceive and produce language of native speakers in the form of combinations or chunks. The combinative nature of English language lends itself in various ways and sometimes they are called as “collocations” which constitute the biggest part of these chunks. In this respect, it is understandable that collocation learning plays a significant role for EFL learners. Thus, the primary purpose of this research is to explore whether corpus based explicit collocation instruction will help the EFL students gain awareness of collocations. Another purpose is to reveal the extent to which EFL learners recognize collocations in different contexts. The final purpose is to observe whether this informed exposure will result in better reading performances in English. The research reported on an experimental study regarding the effect of corpus-based explicit collocation instruction on EFL students' reading performance. The data for the study were obtained through pre-test and post- test scores and interview which included open-ended questions. Tertiary level EFL students (n=50) from the English department of a middle sized university in the Eastern Black Sea region in Turkey participated in the study and the study lasted for eight weeks (spring term). The control group (n = 25) received in-class reading instruction and the experimental group (n = 25) integrated collocations into their reading processes. The study investigated whether there were any differences between the experimental and the control groups in terms of gaining awareness of collocations and exhibiting better reading performances after corpus-based explicit collocation instruction is delivered on a scheduled-order. Based on the analyses of students' reading scores, the main findings showed that the experimental group showed significant improvement when compared to the control group. Both post-test scores and the answers of the students participated in the interview proved that corpus-based explicit collocation instruction had positive effect on the awareness level and reading performances of EFL students. The study, therefore, concludes that English as a Foreign Language learners' use of collocations or word combinations has potential to create more effective reading performance.
Building Corpus-Based Semantic Classifications of Some Tatar Affixes
Authors: Nevzorova Olga , Galieva Alfiia , Suleymanov Dzhavdet
Published: January 2018

This study is aimed at exploring the semantic properties of Tatar affixes. Turkic languages have complicated morphology and syntax, which is a challenge for language processing.

The fundamental principle of inflection and derivation in Tatar, as well as in other Turkic languages, is agglutination, when the stem joins postpositive affixes in a strictly determined order.

The Tatar language has affixes of different types:

a) derivational affixes expressing only lexical meaning and forming new words;

b) inflectional affixes changing the word form (for example, case affixes);

c) affixes serving as means of derivation as well as inflection.

The current study is devoted to the ambiguous Tatar –lık polyfunctional affix which may be joined to nominal, adjectival and verbal stems and form derivatives of different types depending on contextual environment, the meaning of the stem and the composition of the affixal chain of a derivative. -Lık affix is a productive affix in modern Tatar which builds nominal, adjectival and verbal derivatives.

The answer to the question of the number of the types of derivatives and word forms produced with -lık affix is not trivial, and different researchers distinguish different types of derivatives.

Based on a thorough analysis of Tatar derivatives containing - lık affix we identified some empirical features of these constructs and then performed their manual and automatic classification. Four classes were distinguished. For our experiments we used data from the Tatar National Corpus “Tugan Tel” (http://corpus.antat.ru).

The results obtained may be used for disambiguation in Tatar National Corpus and for analyzing other Tatar ambiguous affixes.
Optimal homotopy analysis solution of fingero-imbibition phenomenon in homogeneous porous medium with magnetic fluid effect
Authors: Prajapati Dipakkumar , Desai Narendrasinh
Published: January 2018

The present paper discusses the fingero-imbibition phenomenon in a double phase dis- placement process through homogeneous porous medium with the involvement of a layer of magnetic fluid in the injected phase. This phenomenon has much importance in petroleum technology. The nonlinear partial differential equation governing this phenomenon with appropriate boundary conditions is solved by an optimal homotopy analysis method. The convergence of the solution is decided by minimizing discrete squared residual.
Application of DDBD and FBD Methodology for 8-Story RC Frame Using IS 1893 Spectra
Authors: Gamit Kunjan D. , Amin Jignesh A.
Published: January 2018

This study investigates the direct displacement based design (DDBD) and convectional force based design (FBD) approach for 8 storey RC frame building in DDBD methodology the displacement profile is calculated and the given MDOF is converted to equivalent single degree of freedom system. After calculating the effective period, secant stiffness, and viscous damping of the equivalent structure, the base shear is obtained, based on which the design and detailing process can be carried out. The designed frames as per DDBD and FBD approach are then analyzed using nonlinear pushover analysis to obtain the capacity curves and response reduction factor. Results of the analysis and comparison of ‘R’ factor indicate the efficiency of the DDBD approach for RC frame buildings
The role of English as a Lingua Franca in European projects: The case of the RSGAE project
Authors: Olivares Andrea , Morell Teresa
Published: January 2018

English is undoubtedly the Lingua Franca (ELF) in Europe, as it is used for academic and professional communication. However, it is also used to foster other European languages for specific purposes in different countries and contexts. In this paper we will refer to the role of ELF as a tool to promote multilingualism. In order to provide a pragmatic example, we will be using the Ready-Study-Go-Around-Europe! (RSGAE) project, which aims to produce online material for Vocational Education and Training, to demonstrate the role English plays within a European project, and its influence in the promotion of other European languages. It has been found that, on the one hand, ELF is crucial for interpersonal, administrative and academic communication within the project, and on the other hand, it foments the use of other EU languages for academic and professional purposes. Finally, it has been concluded that English in its role of lingua franca eases international communication and contributes to social, cultural and linguistic awareness in Europe.
Runtime Verification using LARVA
Authors: Colombo Christian , Pace Gordon
Published: January 2018

Larva, which has been in use and continuous development for almost a decade, has been extended in several ways and used in a wide range of scenarios, from industrial deployment to educational ones. In this paper we give an overview of Larva and give an overview of its extensions and uses.
Performance Based Assessment of Seismic Response Factor for SMRF Staging Elevated Water Tank
Authors: Patel Kashyap , Amin Jignesh
Published: January 2018

RC staging water tanks are essential facilities that are expected to remain operational even after sever earthquakes. The seismic design codes/standards of most countries incorporate the nonlinear response of a structure through a ‘seismic response factor’ (R). This factor permits a designer to use a linear elastic force based design while accounting for nonlinear behavior and deformation limits. In this paper orderly approach is deputed to determine the seismic response factor of elevated water tank having different soil flexibility. For nonlinear static pushover analysis finite element method is used. The capacity curve of each model is generated and the ‘R’ factors are obtained such wise. The impact of soil flexibility on seismic response factor of RC framing tank is evaluated. ‘R’ factors are determined for existing tanks at two performance level.
Adaptive Pushover Analysis of Irregular RC Moment Resisting Frames
Authors: Sheth Rutvik , Soni Devesh , Shah Minoli
Published: January 2018

Researchers and engineers certainly prefer to use nonlinear static methods over complicated nonlinear time-history methods. However, in nonlinear static procedure both predetermined target displacement and force distribution pattern are based on a false assumption that the structural behavior and its responses are dominated by the fundamental vibration modes. Therefore, over the past decades, there have been a great number of studies on considering higher mode contribution in nonlinear static results. The Displacement-based Adaptive Pushover Analysis (DAP) is one of the performance assessments tool for improving the accuracy of the obtained results of nonlinear static analysis in estimating the seismic demands of the structures. In this paper, 5 storey L- shaped RC frame is analyzed for seismic Zone IV and designed as per provisions of IS codes. Performance evaluation is carried out by nonlinear static analysis as well as adaptive pushover analysis and results are compared.
Computation of Some Integer Sequences in Maple
Authors: Fan W.L. , Jeffrey David J. , Postma Erik
Published: January 2018

We consider some integer sequences connected with combinatorial applications. Specifically, we consider Stirling partition and cycle numbers, associated Stirling partition and cycle numbers, and Eulerian numbers of the first and second kinds. We consider their evaluation in different contexts. One context is the calculation of a single value based on single input arguments. A more common context, however, is the calculation of a sequence of values. We compare strategies for both. Where possible, we compare with existing Maple implementations.
Soution of fuzzy initial value problems by fuzzy Laplace transform
Authors: Patel Komal , Desai Narendrasinh
Published: January 2018

In this paper we propose a fuzzy Laplace transform to solve fuzzy initial value problem under strongly generalized differentiability concept. The fuzzy Laplace transform of derivative was used to solve Nth-order fuzzy initial value problem. To illustrate applicability of proposed method we plot graphs for different values of r -level sets by using Mathematica Software.
Evaluation Of Response Modification Factor For Moment Resisting Frames
Authors: Patel Nirav K. , Vyas Prutha
Published: January 2018

Conventional seismic analysis of structure incorporates only elastic response of the structure. To understand nonlinear response of the structure, Performance Based Design (PBD) approach is widely used. PBD includes Pushover analysis i.e. nonlinear static analysis, which shows the post-elastic behaviour of the structure. IS 1893-2002 incorporates the nonlinear response of a structure considering response reduction factor (R) so that a linear elastic force based approach can be used for design. The response modification factor plays a key role in the seismic design of new buildings. However, the Indian code does not provide information on the components of R factor. The values assigned to this factor is based on engineering judgment. The study includes the calculation of value R based on different components as per ATC-19 and compares values of R for Special Moment resisting frame (SMRF) and Ordinary Moment resisting frames (OMRF) for two different seismic zones. An improvement in the reliability of modern earthquake-resistant buildings will require the systematic evaluation of the building response characteristics, which mostly affects the values assigned to the factor.
Autonomous vehicle traction subsystem modeling and diagnosis using BG-PCs
Authors: Alonso-González Carlos , Bregon Anibal , Pulido Belarmino , Nacusse Matías , Junco Sergio
Published: January 2018

Fault diagnosis is an essential part in the Health Management of autonomous vehicles. Within these vehicles the traction subsystem is a critical component, especially in those exploring planetary surfaces. Recent advances in brushless DC motors has raised the interest in new models and control configurations to integrate them in those vehicles due to their low energy consumption high torque/- mass ratio and low maintenance requirements. In this work we develop a full Bond Graph model of this subsystem, including the brushless motor and the control blocks needed for proper and efficient operation. These models will allow us to perform fault diagnosis with Bond Graph Possible Conflicts as the unifying formalism. We derive the Bond Graph-Possible Conflicts of the system, discussing the viability of the proposal.
Estimation of Net Irrigation Requirements of Crops in the Deterministic and Stochastic Regimes for Limbasi Canal Command Area
Authors: Khandelwal Suresh S. , Dhiman Sanjay D.
Published: January 2018

Estimation of Net Irrigation Requirement (NIR) of crops is essential for agricultural planning, irrigation scheduling, regional water balance studies and optimal allocation of land and water resources in a canal command area. In the present study, NIR estimation of different crops of Limbasi Canal command area, Gujarat, India is carried out in the deterministic and stochastic regimes for nineteen years of available data. In the deterministic regime, the estimated average NIR of 19 years for kharif crops paddy & vegetables was 229.8 & 92.9mm ; rabi crops sorghum, tobacco, wheat & vegetables was 355.5, 391, 427.2 & 407.1mm and hot weather crops paddy, pearl millet & vegetables was 863.9, 600.6 & 754.7 mm respectively. In the stochastic regime, NIR of different crops was predicted at Probability of Exceedance (PE) levels of 0.02, 0.05, 0.08, 0.10, 0.15, 0.20, 0.25, 0.35 and 0.40 using 19 years of NIR. MATLAB was used for prediction of NIR. The goodness of fit was tested by Kolmogorov – Smirnov test and normal distribution was found as the best fit.
Corpus Analysis of Discourse Markers in Corporate Reports Involving Climate Change
Authors: Kapranov Oleksandr
Published: January 2018

This article involves a corpus-assisted quantitative analysis of discourse markers (further in the article - DMs) identified in the climate change sections of corporate annual reports by British Petroleum and the Royal Dutch Shell corporations. Corporate discourse involving climate change has been amply elucidated from the linguistic macro-perspective (Koteyko, 2012; Livesey, 2002), whilst the discursive micro-perspective still receives little attention. The present corpus-assisted study seeks to elucidate corporate discourse on climate change from the micro-perspective by identifying DMs in climate change sections of annual reports by British Petroleum and the Royal Dutch Shell corporations. Additionally, the novel aspect of the present study involves a juxtaposition of the to-be-identified DMs in annual reporting by these two corporations. The corpus of the study involves climate change sections of the annual reports by British Petroleum and the Royal Dutch Shell Group within the time frame from 2010 until 2015. The corpus has been analysed in WordSmith (Scott, 2012). Results of the data analysis indicate that the most frequent DMs used in climate change discourse by British Petroleum involve and (M = 4,2%), as (0,9%), also (M = 0,4%), likely (0,3%), and but (M = 0,15%), while DMs identified in the Royal Dutch Shell Group’s climate change discourse comprise and (M = 2%), but (M = 0,15%), also (M = 0,6%), such (M = 0,2%), however (M = 0,2%), accordingly (M = 0,1%), furthermore (M = 0,16%), further ( M = 0,1%), and therefore (M = 0,1%). These findings are further presented and discussed in detail in the article.
Investigation on the Effect of Varying Dosages of Steel Fibre on the Strength and Workability Properties Of High Strength Concrete
Authors: Sinha Deepa , Verma Arvindkumar
Published: January 2018

In this work the strength characteristics of steel fibre reinforced concrete with varying percentages of fibres is found and hence arrived at optimum percentage of steel fibres. M60 grade concrete as per particle packing method was designed with cement, sand and coarse aggregates (10mm and 20mm) which yielded a proportion of 1:1.79:1.11:2.08 with a w/c ratio of 0.30. The steel fibres were added at the rate of 0.5%, 0.75%, 1.0%, 1.25%, 1.50%, 1.75%, and 2.0% by volume fraction. Based on the compressive strength and tensile strength it is concluded that the optimum percentage of steel fiber to be added in the concrete mix is 1% by volume fraction.
A Compromised Cluster Detection Method in Dynamic En-route Filtering Utilizing False Reports of Wireless Sensor Networks
Authors: Ahn Jung Sub , Park Dongjin , Cho Tae Ho
Published: January 2018

Sensor nodes of wireless sensor networks are deployed in open environments. Hence, an attacker can easily compromise the node. An attacker can compromise a node to generate false reports and inject them into the network. This causes unnecessary energy consumption associated with the process of transmitting false alarm messages and false data reports to the system. If the attacker keeps repeatedly attacking, the attacks will cause problems such as a reduction in the entire network life or disabling of the networks. Yu and Guan proposed a dynamic en-route filtering scheme to detect and drop these false reports before they reach the base station. In dynamic en-route filtering, the energy waste of the intermediate nodes occurs until it is detected early. In this paper, we propose a method to save the energy of the intermediate nodes by searching for the compromised node and blocking the reports generated at that node. When verifying a false report at the verification node, it can know its report information. The base station is able to find the cluster of compromised nodes using that information. In particular, by knowing the location of the node that has been compromised, we can block false alarms and energy losses by blocking reports generated in that cluster.
'it is proper ſubſerviently, to inquire into the nature of experimental chemiſtry': Difficulties in Reconciling Discipline-Based Characteristics and Compilation Criteria in the Selection of Samples for CECheT.
Authors: Puente Castelo Luis Miguel , Monaco Leida Maria
Published: January 2018

This paper discusses the compilation of the beta version of CECheT, the subcorpus devoted to Chemistry in the Coruña Corpus of English Scientific Writing, and reflects on the difficulties faced during this process and how they were overcome. The historical context of science will be examined, particularly that of chemistry, and how this affects the process of compilation.

Attention will also be paid to the compilation criteria used in the whole Coruña Corpus, including those regarding the appropriateness of authors and text samples (Moskowich, 2012), and how these criteria have been applied to the compilation of CECheT in order to make it representative of the practices of the discipline at the time.

Finally, the corpus will be described briefly, looking at a series of parameters: the topics of the texts, the size of samples, their chronological distribution, as well as the geographical origin and sex of the authors represented.
How Many People in the Making of Sloane 770? A Corpus-Based Approach
Authors: Carmona-Cejudo Jessica
Published: January 2018

During the transcription of a late Middle English manuscript on Medicine (London, British Library, MS Sloane 770), a series of orthographic variations appeared, several of which seemed to be arranged following a predictable pattern. Should this prove correct, it may be a clue to posit the existence of two or more scribes who were involved in the copying of the codex, or else of the dialect of the MS being an example of Mischsprache that combines the dialects of the exemplar MS and that of the scribe. To ascertain whether the MS was written by more than one copyist or whether it is an example of the coexistence of two different dialects, a morphologically lemmatized corpus was built. This paper will present the results obtained after studying that corpus in order to verify either the original hypothesis is linguistically and scientifically based or not.
One-Dimensional Heat Equation Subject to Both Neumann and Dirichlet Initial Boundary Conditions and Used a Spline Collocation Method
Authors: Patel Nilesh , Pandya Jigisha
Published: January 2018

In this paper, one-dimensional heat equation subject to both Neumann and Dirichlet initial boundary conditions is presented and a Spline Collocation Method is utilized for solving the problem. Also, Spline provides continuous solution in contrast to finite difference method, which only provides discrete approximations. It is found that this method is a powerful mathematical tool and can be applied to large class of linear and nonlinear problem in different fields of science and technology. Numerical results obtained by the present method are in a good agreement with the analytical solutions available in the literature.
El lenguaje para fines artísticos: las traducciones de tondo al español
Authors: Carpi Elena
Published: January 2018

Este trabajo estudia las traducciones españolas de la palabra italiana tondo, que entra en español como préstamo del italiano en el lenguaje de la arquitectura. Sin embargo, en italiano tondo se usa también en el lenguaje de la pintura, como testimonia la famosa obra de Miguel Ángel Tondo Doni.

El estudio del término tondo ejemplifica la metodología utilizada en el marco del proyecto interuniversitario Lessico dei Beni Culturali (LBC) del Dipartimento di Lingue, Letterature e Studi Multiculturali de la Universidad de Florencia, cuya finalidad es la creación de diccionarios monolingües y bilingües relacionados entre sí mediante enlaces hipertextuales, que ayuden a los traductores que se enfrentan a un texto de temática artística a comprenderlo y a escoger los términos adecuados en la lengua meta, con relación al contexto en que aparecen y a las variadas tipologías de discurso de las guías turísticas, de las páginas web de museos o de los catálogos de exposiciones. Para cada palabra estudiada se redacta una ficha-fuente en italiano y otra para cada lengua del proyecto (alemán, inglés, chino, español, francés, portugués, ruso) en perspectiva diacrónica y sincrónica, en la base de textos especializados y diccionarios; la dos perspectivas son necesarias para comprender los conceptos subyacentes a las denominaciones en la lengua fuente, generalmente caracterizadas por un alto grado de variación semántica.
Towards LSP (II) – Language Teaching for Future Interpreters: Graduate Profiles
Authors: Adams Heather , Cruz-García Laura
Published: January 2018

This paper presents some of the findings from research carried out among language teachers on translation and interpreting (T&I) degree courses in Spain, who responded to a questionnaire aiming to obtain a clearer idea of how foreign language teaching in this field of studies differed from approaches in other areas. The main purpose was to compile data based on actual practice, rather than theoretical notions. While the questions posed tended to be framed in such a way as to draw conclusions more for translation than for interpreting, a number of them were conducive to eliciting responses relating to aural and oral performance. Our paper will set forth the ensuing findings that can be applied to the development of language- and culture-based competences for subsequent interpreting courses and practices, as well as exploring possible further areas of study in the area of the teaching of both foreign languages and the mother tongue based on the specific language competences required in the different modalities of interpreting. We are, of course, immensely grateful to all those teachers who took the time and trouble to answer our questions.
Shear and Impact Behaviour of Reactive Powder Concrete with Varying Fibre Content
Authors: Patel Payal B , Thakur Lalit S , Maroliya Dr. Mahesh K , Patel Bhavin A
Published: January 2018

Reactive powder concrete (RPC) is a novel material due to its high strength and enhanced durability properties. These properties have made it choicest material for external facade cladding thus enabling a considerable reduction in the thickness of concrete elements. The mix design of RPC is such that it affects the heat of hydration in concrete due to its reduced cementitious content. The advantage of this concrete or so to say mortar hinders other properties like permeability, creep and shrinkage. To one limit the material becomes more brittle thereby reducing the possibility of deformation before failure. The present work is an effort to evaluate the shear and impact behaviour of RPC due to varying proportions of fibre content in the mix. The results showed marked improvement of strength as well as the crack behaviour of the cubes when subjected to shear loading with increase in the load for first cracking.
DANA – Description and Analysis of Networked Applications
Authors: Drabek Christian , Weiss Gereon
Published: January 2018

We introduce the DANA platform for specifying and analyzing networked applications. DANA was originally created targeting the automotive domain for the verification and validation of software interface behavior in new infotainment and advanced driver assistant systems that are integrated on a single hardware platform. The messages in these interfaces can contain complex data, e.g., playlists with images. Therefore, valid behavior is described as a layered reference model. The platform can use the model to generate test cases, code for simulation, and to verify a live or recorded trace. Exchangeable resumption algorithms enable DANA to resume runtime verification after a deviation using the original state machine without manual changes. A generic input model allows quick integration of new sources for messages. Therefore, DANA can easily be applied to other domains where interactive behavior can be observed. In this paper, we present the tool, its layered reference model, and show its application for runtime verification.
Finite Element Behaviour of RC Beam with Hybrid Arch Profile
Authors: Desai Kedar , Dhankot Mazhar
Published: January 2018

A detailed study has been conducted for understanding the structural behaviour of a beam with Hybrid profile consisting of a concrete arch tied with steel reinforcement. The compression region generated due to flexural loading is converted into an arch which is connected by providing reinforcement at the bottom. The structural performance of this type of beam is not known yet owing to its complex shape and novelty. The main goal of the study is to examine the static behaviour of this beam under flexure and different support conditions comprising of simple support with and without horizontal restraint. Finite element analysis for the developed beam is conducted using standard FEA package. The results indicate that the strain at the level of steel in arch beam reduces by 31.8% with horizontal restraint whereas without horizontal restraint, there is an increase of strain by 50% as compared to beam having rectangular section with similar loading condition and flexural rigidity. The self-weight of the developed beam was reduced by 45% compared to conventional rectangular section. This study shows that the performance of the developed beam improves significantly if a suitable support conditions are provided.
Kentsel yeşil altyapı analizi: Bornova örneği
Authors: COŞKUN HEPCAN Çiğdem , HEPCAN Şerif
Published: January 2018

Bu araştırmada; Bornova kentsel peyzajı içindeki
açık ve yeşil alanların strüktürünü ortaya koymak amacıyla, kentsel açık ve
yeşil alan sisteminin bileşenleri olan doğal ve bitkilendirilmiş parça ve
koridorlar, 2014 yılı arazi kullanım haritası kullanılarak tanımlanmıştır. Bu
bileşenlerin strüktürü; sekiz adet peyzaj metriği (sınıf alanı (CA), parça
sayısı (NP), peyzajın oranı (PLAND), Peyzaj şekil indeksi (LSI), ortalama parça
büyüklüğü (AREA_MN), yakınlık indeksi (PROX_AM), süreklilik indeksi
(GYRATE_AM), mesafe indeksi (ENN_AM)) kullanılarak analiz edilmiştir. Araştırmada,
kentsel açık ve yeşil alan sistemi oluşturma potansiyeline sahip parça ve
koridorların kentsel gelişme alanı içindeki oranının % 45 (% 43 parça, % 2
koridor) olduğu belirlenmiştir. Sonuçlar ayrıca kentsel gelişme alanı içinde
düzensiz dağılım gösteren parça ve koridorların büyük ölçüde doğal karakterli
olduğunu, aralarındaki mesafelerin fazla ve peyzajdaki sürekliliğinin düşük
olduğu göstermiştir. Araştırma sonuçları; kentte bir yeşil alt yapı sisteminin
bulunmadığını, niceliksel açıdan açık ve yeşil alanların kentsel peyzaj
içindeki durumunun yeterli olmadığı, ancak kentin içinde olmasa da çeperlerinde
gelecekte yeşil altyapı sistemi oluşturmak için uygun olarak kullanılması
halinde kent ekosistemine daha çok katkı sağlayabilecek önemli yeşil alanlar
bulunduğunu ortaya koymuştur.
ELIMINASI GANGGUAN MATRIKS DALAM ANALISIS MERKURI HG SEBAGAI SENYAWA KOMPLEKS THIO MICHLERÃ¢â¬â¢S KETON SECARA SPEKTROFOTOMETRI
Authors: Sukib Sukib , Mutiah Mutiah
Published: January 2018

Telah dilakukan penelitian tentang penyusunan metode analisis merkuri melalui pembentukan senyawa kompleks dengan 4,4'-Bis(dimethylamino)thio-benzophenone TMK. Senyawa kompleks tersebut berwarna biru kehijauan yang dapat dideteksi denganÃÂ  spektrofoto-meter pada kondisi: lmax 574 nm;ÃÂ  pH 3; konsentrasi TMK 0,0002 M, dan waktu tunggu selama 4Ã¢â¬â10 menit. perbandingan volume pereaksi: Hg(II), bufer pH 3, TMK 0,002 M, H2O bebas ion adalah 1:1:1:7. Dari hasil penelitian menunjukkan bahwa metode ini telah memenuhi validitas, yaitu: linieritas 0,05Ã¢â¬â2,0 mg/L, limit deteksi 0,008 mg/L, dan % recovery antara 98% Ã¢â¬â 102%. Gangguan matriks akibat adanya ionÃ¢â¬âion Au(III), Ag(I), Pd(II), Cu(II), Co(II), dan Fe(II) dapat dieliminasi dengan metode ekstraksi pelarut dan adisi standar. Metode adisi standar terbukti mampu memberikan data hasil pengukuran yang dapat dipercaya pada a 5%, yaitu untuk sampel buatan sebesar (0,053 ÃÂ± 0,001) mg/L, air sungai (0,034 ÃÂ± 0,004) mg/L, dan sedimen sebesar (4,172 ÃÂ± 0,050) mg/kg. Dari hasil penelitian ini dapat disimpulkan bahwa metode ekstraksi pelarut dan adisi standar mampu mengeliminasi gangguan matriks pada analisis merkuri sebagai kompleks Hg-TMK secara spektrofotometriKata kunci: Metode analisis merkuri, Thio MichlerÃ¢â¬â¢s keton, eliminasi, gangguan matriks ÃÂ Abstract. A researchÃÂ  of analysis method for determination of mercury through formation of complex with 4,4'-bis(dimethylamino)thiobenzophenone TMK has been conducted. The green blue complex compound can be detected with spectrophoto-meter in conditions: lmax 574 nm, buffer acetate pH 3, concentration of TMK 0,0002 M, and the absorbance of complex remains stable for 4Ã¢â¬â10 minutes. The formula of reagents volume for: Hg(II): buffer acetate pH 3: TMK 0,002 M : de-ionized water is 1:1:1:7. This method is valid, with parameters such as linearity 0.05Ã¢â¬â2.00 mg/L, limit of detection 0.008 mg/L, and recovery in the range 98%-102%. Matrix interferences that are caused by Au(III), Ag(I), Pd(II), Cu(II), Co(II), and Fe(III) ions can be eliminated with solvent extraction and standard addition methods. Standard addition method is able to give data of trusty measurement result at a 5%, that is for synthesis sample as (0.053 ÃÂ±ÃÂ  0.001) mg/L, river water (0.034 ÃÂ± 0.004) mg/L, and for sediment (4.172 ÃÂ± 0.050) mg/kg. From the result of this research, it can be concluded that solvent extraction and standard addition methods are able to eliminated matrix interferences in mercury analysis as Hg-TMK complex spectrophotometricallyÃÂ
IMPLEMENTASI SCIENTIFIC APPROACH PADA OUTDOOR LEARNING UNTUK MENINGKATKAN MOTIVASI BELAJAR MAHASISWA PENDIDIKAN IPA
Authors: Ernawati Tias
Published: January 2018

Abstrak. Penelitian ini bertujuan untuk mengetahui bahwa implementasi scientific approach pada outdoor learning dalam mata kuliah Ilmu Lingkungan dapat meningkatkan motivasi belajar mahasiswa Program Studi Pendidikan IPA Semester Genap T.A. 2014/2015. Penelitian ini adalah penelitian tindakan kelas yang terdiri dari dua siklus. Setiap siklus terdiri dari perencanaan tindakan, pelaksanaan dan observasi, serta refleksi. Pelaksanaan tindakan dilakukan dengan menerapkan scientific approach yang meliputi mengamati, menanya, menalar, mencoba, membentuk jejaring pada kegiatan outdoor learning. Peserta didik diarahkan untuk aktif mengamati, bertanya, memikirkan, bereksperimen atau mencoba, sampai dengan menyampaikan dan mengomunikasikan. Hasil penelitian menunjukkan bahwa implementasi scientific approach pada outdoor learning dapat meningkatkan motivasi belajar mahasiswa. Motivasi belajar mahasiswa mengalami kenaikan sebesar 5,08% dari prasiklus sampai dengan siklus 2 dengan kategori kualifikasi motivasi tinggi. Motivasi belajar pada prasiklus sebesar 72,65%, pada siklus 1 sebesar 73,57% dan pada siklus 2 sebesar 77,73%.Kata kunci: scientific approach, outdoor learning, motivasi, penelitian tindakan kelasÃÂ Abstract. This study aims to find out that the implementation of the scientific approach to the outdoor learning courses in Environmental Science can increase learning motivation of students in the academic year 2014/2015. This research is a classroom action research which has two cycles. Each cycle consists of action planning, execution and observation, and reflection. Implementation of the actions carried out by applying a scientific approach that includes observing, asking, reasoning, trying, forming networks in outdoor learning activities. Students are directed to actively observing, questioning, thinking, experimenting, up to convey and communicate. The results showed that the implementation of the scientific approach to the outdoor learning can increase student motivation to learn. The motivation of student learning has increased by 5.08% from pre-cycle to the second cycles with high motivation qualification category. Learning motivation is 72.65%, 73.57% and 77.73% for pre-cycle, the first cycle, and the second cycle, respectively.ÃÂ Keywords: scientific approach, outdoor learning, motivation, class action research
PENERAPAN STRATEGI PEMBELAJARAN KOOPERATIF TIPE COOPERATIVE SCRIPT PADA PERKULIAHAN PROGRAM LINIER UNTUK MENINGKATKAN AKTIVITAS DAN PRESTASI BELAJAR MAHASISWA SEMESTER IV PROGRAM STUDI PENDIDIKAN MATEMATIKA FKIP UNIVERSITAS MATARAM
Authors: Kurniati Nani , Patmi Sri , Turmuzi Muhammad
Published: January 2018

Abstrak: Penelitian ini dilatar belakangi dari pengalaman peneliti selama mengampu mata kuliah Program Linier terlihat bahwa aktivitas belajar mahasiswa masih kurang sehingga prestasinyapun tidak maksimal. Oleh sebab itu, tujuan dari penelitian ini adalah untuk meningkatkan aktivitas dan prestasi belajar mahasiswa semester IV program studi pendidikan matematika FKIP Universitas Mataram tahun akademik 2013/2014. Penelitian tindakan kelas ini dilakukan selama 3 siklus, hasil yang diperoleh pada masing Ã¢â¬â masing siklus adalah rata Ã¢â¬â rata hasil evaluasi 63,14, ketuntasan klasikal 67,65 % dan kategori keaktifan cukup aktif dan aktif pada siklus I, rata Ã¢â¬â rata hasil evaluasi 75,74, ketuntasan klasikal 100 % dan kategori keaktifan aktif dan aktif pada siklus II, rata Ã¢â¬â rata hasil evaluasi 79, ketuntasan klasikal 85,35 % dan kategori keaktifanÃÂ  aktif dan sangat aktif pada siklus III. Dilihat dari hasil yang diperoleh, dapat disimpulkan bahwa dengan menerapkan strategi pembelajaran kooperatif tipe cooperative script secara optimal pada perkuliahan program linier dapat meningkatkan aktivitas dan prestasi belajar mahasiswa semester IV program studi pendidikan matematika FKIP Universitas Mataram tahun akademik 2013/2014.ÃÂ Kata Kunci : Cooperative Script, Aktivitas Belajar, Prestasi Belajar, Program LinierÃÂ Abstract: The background of the research was the experience of researcher during teaching of Linear Programming topic whereas that the student learning activity was low. It has contribution to less optimum learning outcomes. The purpose of this research was to increase the activity and learning outcomes of the students of fourth semester, mathematics education division, Faculty of Teacher Training and Science Education, Mataram University in the academic year 2013/2014. This classroom action research conducted using 3 cycles. The results obtained in the first cycle were the 63.14 average of the evaluation results, 67.65% classical completeness and categorized as quite active. The results of the second cycle were 75.74 with 100% classical completeness and considered as active. In the third cycle showed that the average of the evaluation results was 79 with classical completeness 85.35%, categorized as very active. It can be concluded that the strategy of cooperative learning cooperative script optimally at lectures linear program can increase the activity and achievement of students.ÃÂ Keyword : Cooperative Script, ÃÂ learning activity, learning achievement, Linier Programing
DESALINASI BERBASIS TENAGA SURYA DI KECAMATAN BAYAN LOMBOK UTARA
Authors: Ismillayli Nurul , Hermanto Dhony , Kamali Siti Raudhatul , Fahrurazi Fahrurazi
Published: January 2018

Abstrak: Minimnya ketersediaan air bersih dan keterbatasan sarana untuk mendapatkannya membuat masyarakat Kecamatan Bayan, Kabupaten Lombok Utara (KLU) rentan terhadap krisis air. Secara geografis sebagian besar wilayahnya merupakan pesisir pantai yang kaya akan cahaya matahari, mengingat dalam setahun bulan basah hanya terjadi 3-4 bulan. Air laut dapat menjadi bahan baku air bersih melalui teknologi desalinasi dengan menggunakan sinar matahari sebagai sumber panas. Melalui kegiatan Ipteks bagi masyarakat, alih teknologi pembuatan alat desalinasi berbasis tenaga surya di Kec. Bayan, KLU dilakukan. ÃÂ Kegiatan meliputi sosialisasi pada beberapa kelompok tani Kec. Bayan tentang prinsip kerja alat yang telah diuji coba di laboratorium kimia Universitas Mataram. Praktik kerja pembuatan alat juga dilakukan agar kelompok tani dapat membuat alat sekaligus dapat menyalurkan pengetahuan dan keterampilan kepada anggota masyarakat lainnya. Produk kegiatan diharapkan menjadi salah satu alternatif solusi untuk mengatasi krisis air walaupun masih diperlukan peningkatan produktivitasnya.ÃÂ Kata kunci: desalinasi, air laut, air bersih, tenaga surya.ÃÂ Abstrac: The lack of clean water and limited access to get it made public of Bayan District, North Lombok (KLU) were vulnerable to the water crisis. Geographically, most of KLU is coastal region that rich in sunshine, considering the wet months of the year only occur 3-4 months. Sea water can be the raw material of fresh water through desalination technology using sunlight as source of heat. Through IbM activity, transfer technology by producing and setting desalinator based on solar power in the Bayan district, KLU has been done. The activity included socialization on some farmer groups of Bayan district about basic principle of the desalinator that has been tested in the Chemistry Laboratory at Mataram University.ÃÂ ÃÂ ÃÂ ÃÂ ÃÂ ÃÂ ÃÂ  Practicing on production of desalinator also has conducted, hence they can produce and share their knowledge and skills to other community. Product activity is expected to be an alternative solution to overcome the water crisis despite still needed some refinement for increasing its productivity.ÃÂ Keyword: desalination, seawater, fresh water, solar energy
PRAKTIKUM KIMIA BERBASIS KIMIA KOMPUTASI UNTUK SEKOLAH MENENGAH ATAS
Authors: Hadisaputra Saprizal , Telly Savalas Lalu Rudyat , Hamdiani Saprini
Published: January 2018

Program pengembangan praktikum kimia berbasis kimia komputasi untuk Sekolah Menengah Atas telah dilaksanakan pada kelompok kerja guru kimia mitra (SMAN 1 Narmada dan SMAN 2 Narmada) di Kabuaten Lombok Barat, Indonesia. Kegiatan dilaksanakan dengan dengan mengadopsi langkah-langkah penelitian tindakan yang terdiri dari empat tahapan, yaitu: perencanaan, tindakan, observasi dan evaluasi, dan refleksi. Target yang telah dicapai melalui kegiatan ini adalah 1) Teridentifikasinya konsep-konsep kimia SMA yang esensial yang bisa diajarkan dengan lebih mudah bila melibatkan eksperimen berbasis kimia komputasi sebagai alternatif pengganti praktikum di laboratorium. 2) Teridentifikasinya perangkat lunak yang dapat digunakan oleh guru sebagai alternative pengganti praktikum kimia. 3) Mengukur tingkat motivasi guru sebelum dan setelah kegiatan untuk melaksanakan praktikum kimia di sekolah. 4) Adanya produk berupa buku panduan praktikum kimia SMA berbasis kimia komputasi yang dapat digunakan sebagai alternatif pengganti praktikum di laboratorium. Program ini sangat berguna untuk meningkatkan proses belajar mengajar kimia di sekolah.
MEDIA DEMONSTRASI KIMIA YANG DIMODIFIKASI UNTUK MENGATASI MISKONSEPSI MAHASISWA PADA TOPIK SEL ELEKTROKIMIA
Authors: MutiÃ¢â¬â¢ah MutiÃ¢â¬â¢ah , Siahaan Jackson , Sukib Sukib
Published: January 2018

Abstrak: Tujuan penelitian ini untuk menyelidiki penerapan media demonstrasi kimia yang dimodifikasi untuk mengatasi miskonsepsi mahasiswa pada topik sel elektrokimia. Penelitian dilaksanakan menggunakan penelitian tindakan kelas berbasis lesson study yang dilaksanakan ÃÂ selama 2 siklus, yaitu siklus I menggunakan metode konvensional dan siklus II media demonstrasi kimia yang dimodifikasi.Hasil penelitian menunjukan bahwa miskonsepsi mahasiswa pada topik sel elektrokimia terkait dengan konsep transfer elektron, pembawa muatan listrik dalam rangkaian luar/kawat penghantar, mekanisme aliran listrik dalam larutan elektrolit dan jembatan garam, serta mekanisme aliran elektron maupun aliran listrik dalam sel galvani. Penerapan media demonstrasi kimia yang dimodifikasi dapat meningkatkan pemahaman konsep. Hal ini terbukti adanya peningkatan persentase mahasiswa yang mampu memperbaiki miskonsepsi, yaitu: transfer elektron 15%, pembawa muatan listrik dalam rangkaian luar/kawat penghantar 34%, mekanisme aliran listrik dalam larutan elektrolit dan jembatan garam 20%, mekanisme aliran elektron maupun rangkaian aliran listrik dalam sel galvani 25% dan 18%Dari hasil penelitian ini dapat disimpulkan bahwa media demosntrasi kimia yang dimodifikasi dapat mengatasi miskonsepsi karena merupakan cara pembelajaran yang dapat menyajikan fenomena kimia pada tingkat makroskopis, submikroskopis dan simbolik.ÃÂ ÃÂ Kata kunci: demonstrasi kimia dimodifikasi, miskonsepsi, sel elektrokimia
APLIKASI TEKNOLOGI NANOKOMPOSIT LIMBAH PADAT PETERNAKAN SAPI (LPPS) DI INDUSTRI GERABAH DESA BANYUMULEK KABUPATEN LOMBOK BARAT
Authors: Hamdiani Saprini , Khairi Zuryati Ulul , Ariessaputra Suthami
Published: January 2018

Desa Banyumulek Kabupaten Lombok Barat adalah sentra industri gerabah terbesar di Provinsi NTB sejak tahun 1960-an. Gerabah dari Desa Banyumulek bahkan telah mampu menembus pasar ekspor ke beberapa negara Eropa dan Australia. Perkembangan industri gerabah yang semakin positif, tidak didukung oleh ketersediaan bahan baku pembuatan gerabah. Salah satu bahan baku utama pembuatan gerabah yaitu pasir semakin mahal harganya. Penggunaan pasir dapat digantikan oleh limbah padat peternakan sapi (LPPS). Limbah padat peternakan sapi mengandung selulosa yang tinggi sehingga efektif sebagai filler penguat tanah berlempung berdasarkan konsep teknologi nanokomposit. Kandungan silikat pada limbah padat peternakan sapi juga dapat meningkatkan plastisitas tanah berlempung, sehingga gerabah yang dibuat semakin mudah dibentuk. Selain itu, kandungan C-organik yang tinggi akan mengurangi bobot gerabah yang dibuat sampai 24,5 %. Limbah padat peternakan sapi sangat potensial diaplikasikan pada industri gerabah karena ketersediaannya yang sangat melimpah di Provinsi NTB yang terkenal sebagai Bumi Sejuta Sapi (BSS). Oleh karena itu, melalui kegiatan Ipteks Bagi Masyarakat (IbM) dilakukan kegiatan sosialisasi dan praktek pengolahan limbah padat peternakan sapi kepada para pengrajin gerabah. Produk dari kegiatan ini adalah gerabah yang kuat dan ringan, dengan bahan baku alternatif yang ramah lingkungan.
PENDEKATAN KONTEKSTUALDALAM PEMBELAJARAN IPA(BIOLOGI) DI SEKOLAH MENENGAH PERTAMA
Authors: Kusmiyati Kusmiyati
Published: January 2018

Abstrak. Pendekatan kontekstual merupakan konsep belajar yang mendorong siswa mengkontruksi pengetahuan yang ada pada mereka sendiri. Proses pembelajaran berlangsung alamiah dalam bentuk kegiatan siswa bekerja dan mengalaminya. Penerapan pendekatan kontekstual dalam pembelajaran biologi bertujuan agar pembelajaran lebih produktif dan bermakna. Tugas guru adalah mengelola kelas atau menentukan strategi dan metode pembelajaran, agar siswa mencapai tujuan dengan menemukan sendiri konsep-konsep yang dipelajarinya.Kata-kata kunci: Pendekatan kontektual, IPA, SMPAbstract. Contextual learning is learning concept that encourages students to construct their knowledge by themselves. The learning process is naturally in the form of studentÃ¢â¬â¢s activity and experience, not by transfer the knowledge from teacher. The aim of the application of contextual learning on biology will be more effective and efficient. The task of the teacher is controlling class and to decide learning strategy and method, so that the students experience concepts what they learnt by themselves.Keywords: Contextual teaching and learning, science, secondary school