bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengembangan Virtual Reality Pengenalan Binatang Buas Untuk Anak Usia Dini
Authors: Pradnyana I Made Ardwi , Arthana I Ketut Resika , Sastrawan I Gusti Bagus Hari
Published: February 2018

Submission of learning materials with animal themes, especially wild animals to early childhood becomes a challenge for teachers. Two-dimensional displacement media in the form of a monotonous image has the potential to decrease interest in children's learning. Bringing wild animals directly or bringing the children to the zoo requires considerable cost and time and harm. Based on these problems, the authors develop android-based applications that contain fourteen species of wild animals in 3D format that is packed with Virtual Reality (VR) technology. The authors develop applications using development research methods with the ADDIE model. The developed VR application is capable of displaying wild animal animations complete with the sounds and environment of the habitat, as well as the description narrative features and food that can be viewed in 3D and VR modes. The test results showed that the application received a positive response from users, especially children in TK Negeri Pembina Singaraja. The average percentage for the user response test is 88.50%, which means it is very good where children can know the types of wild animals, the movements of wild animals, the sounds of wild animals, the habitats of wild animals and can use them easily.
Corte Penal Internacional: Génesis y Alcance
Authors: Ariza Santamaría Rosembert
Published: February 2018

La importancia del Estatuto de Roma radica en el impacto que tiene en las legislaciones internas, en particular si altera la Administración de Justicia; por esta razón es necesario establecer los alcances del Estatuto de Roma y las implicaciones en los crímenes cometidos en Colombia.
La relación Estado - Economía
Authors: Ramírez Plazas Jaime
Published: February 2018

El artículo, producto de una investigación documental, presenta la relación existente entre el Estado y el mercado a la luz de las concepciones ideológicas del administrador del Estado (gobierno) y su aplicación en el caso colombiano.
Characterization of Protease-Activated Receptor (PAR) Ligands: Parmodulins Are Reversible Allosteric Inhibitors of PAR1-Driven Calcium Mobilization in Endothelial Cells
Authors: Gandhi Disha M. , Majewski Mark W. , Rosas Ricardo , Kentala Kaitlin , Foster Trevor J. , Greve Eric , Dockendorff Chris
Published: February 2018

We report a detailed protocol for an intracellular calcium mobilization assay with adherent endothelial cells in multiwell plates that was used to study a number of different PAR1 and PAR2 ligands, including an alkynylated version of the PAR1 antagonist RWJ-58259 that is suitable for the preparation of tagged or conjugate compounds. Using the cell line EA.hy926, it was necessary to perform media exchanges with automated liquid handling equipment in order to obtain optimal and reproducible antagonist concentration-response curves. The assay was used to confirm that vorapaxar acts as an irreversible antagonist of PAR1 in endothelium, and parmodulin 2 (ML161) and the related parmodulin RR-90 were found to inhibit PAR1 reversibly, in a manner consistent with negative allosteric modulation. Detailed synthetic protocols are also provided for several known and novel PAR ligands.
STUDI CAMPURAN KAPUR PADA TANAH LEMPUNG TERHADAP PERMEABILITAS DAN KECEPATAN KONSOLIDASI
Authors: Jalil Abdul
Published: February 2018

Tanah lempung pada Desa Cot Girek Kandang Kec. Muara Dua Aceh Utara cenderung tidak stabil karena sering mengalami kelongsoran bila musim hujan. Penstabilan tanah dengan kapur dolomit CaMg(CO3)2 lebih dipilih karena kepadatan dan kekerasannya yang dapat meningkat. Tujuan pencampuran ini adalah menentukan nilai Cv (koefisien konsolidasi). Benda uji meliputi tanah tak terganggu dan tak terganggu yang dibentuk melalui pemadatan proctor dengan persentase kapur 5%, 7,5%, dan 10% dengan jumlah benda uji 4 buah. Campuran kapur pada tanah lempung ini dapat menurunkan nilai Cv hingga 2,33 x 10-4 cm2/min pada beban terberat yaitu 8 kg dengan persentase 5% kapur dibanding pada tanah asli yaitu 1,294 x 10-2 cm2/min dan 0% kapur sebesar 1,296  x 10-2 cm2/min pada beban yang sama. Pada 7,5% dan 10% kapur cv kembali meningkat menjadi 1,23 x 10-2cm2/menit dan 3,9 x 10-2 pada beban 8 kg. Dengan demikian pada campuran tanah dengan 5% kapur adalah yang paling baik.
OPTIMALISASI RENCANA ANGGARAN BIAYA DAN WAKTU PELAKSANAAN DENGAN PRESEDEN DIAGRAM METHOD (PDM) PADA PROYEK PEMBANGUNAN SDN 3 DEWANTARA
Authors: Fauzan Muhammad
Published: February 2018

Perencanaan proyek adalah salah satu unsur penting dalam manajemen proyek. Perencanaan yang baik akan meningkatkan pencapaian sasaran proyek yaitu mendapatkan hasil dalam hal ini bangunan yang berkualitas, dengan biaya yang optimal dan dalam waktu yang ditetapkan serta menghindari resiko negatif baik bagi lingkungan maupun manusia. Aspek waktu dan biaya adalah dua aspek yang saling berkait. Seringkali waktu mempengaruhi biaya proyek namun sebaliknya tidak jarang biaya juga dapat mempengaruhi waktu penyelesaian proyek. Oleh karena itu para peneliti, akademisi dan praktisi memberi perhatian lebih terhadap dua aspek ini. Dalam penelitian ini optimalisasi biaya dan waktu penyelesaian proyek mengambil studi kasus pada proyek pembangunan SDN3 Dewantara. Inventarisasi kegiatan didasarkan pada data yang dihimpun dari dokumen kontrak termasuk didalamnya rencana anggaran biaya (RAB), gambar kerja, dan spesifikasi teknis. Optimalisasi dilakukan melalui perubahan metoda kerja dengan membuat beberapa alternatif. Selanjutnya maisng-masing alternatif tersebut diformulasikan dalam network dan dilakukan perhitungan waktu penyelesaian pekerjaannya dengan bantuan software microsoft project. Data yang diinput adalah data jenis pekerjaan, konstrain antar pekerjaan untuk menyusun networknya selanjutnya data durasi pekerjaan. Data durasi pekerjaan mengacu pada koefisien SNI dengan menjadikan variabel jumlah tenaga kerja sebagai variabel terikat dan variabel durasi sebagai variabel bebas. Selanjutnya hasil yang diperoleh dari software diolah dan dianalisa. Hasil perhitungan menunjukkan adanya penghematan waktu dibandingkan rencana awal yaitu selama 10 hari untuk  alternatif 1 dan 21 hari untuk alternatif 2 dengan biaya pelaksanaan pekerjaan tetap sebesar Rp. 1.926.468.800,66.
PENGARUH CAMPURAN KAPUR DAN ABU JERAMI GUNA MENINGKATKAN KUAT GESER TANAH LEMPUNG
Authors: Hamzani Hamzani
Published: February 2018

Lempung adalah terdiri dari butiran-butiran sangat kecil dan menunjukkan sifat plastisitas dan kohesif. Pada penelitian ini digunakan kapur dan abu jerami untuk perbaikan tanah lempung di desa Cot Girek Kandang yang berdaya dukung rendah. Tujuan penelitian ini adalah untuk mengetahui nilai kuat geser dengan campuran 5% kapur dan variasi abu jerami 2%, 4% dan 6%. Tanah di desa Cot Girek Kandang  termasuk tanah lempung berpasir. Pada variasi campuran 5% kapur + 2% AJP didapat kadar air optimum 17,5% dengan kerapatan kering tertinggi 1,65 gr/cm3. Uji triaxial nilai sudut geser dalam tanah tertinggi didapat pada persentase penambahan 5% kapur + 2% AJP. Nilai kohesi tertinggi pada persentase penambahan 5% kapur + 4% AJP. Uji direct shear nilai sudut geser dalam tanah tertinggi didapat pada persentase penambahan 5% kapur +  6% AJP. Nilai kohesi tertinggi didapat pada persentase penambahan 5% kapur + 2% AJP. Maka dari itu campuran kapur dan abu jerami padi dapat dipakai karena dapat meningkatkan nilai kuat geser.
EVALUASI KINERJA JALAN TERHADAP RENCANA PEMBANGUNAN JALAN DUA JALUR
Authors: Akbar Said Jalalul , Wesli Wesli , Burhanuddin Burhanuddin , Khadafi Muammar
Published: February 2018

Jalan Banda Aceh-Medan Simpang Jalan Elak-Jembatan Alue Awe saat ini sangat padat arus lalulintas yang melintasi. Hal ini disebabkan beberapa faktor diantaranya adalah pada lokasi tersebut telah didirikan beberapa gedung/bangunan penting sebagai fasilitas umum seperti Sekolah Tinggi Agama Islam Negeri, Rumah Sakit Umum kota Lhokseumawe, Politeknik Negeri dan pertokoan serta tempat-tempat usaha lainnya milik masyarakat. Penelitian ini bertujuan ingin mengetahui apakah jalan tersebut masih mampu melayani lalulintas sehubungan dengan kondisi pada lokasi tersebut. Penelitian ini menggunakan metode MKJI 1997. Dari hasil penelitian diperoleh bahwa nilai LHR pada hari Rabu 930,71 smp/jam, hari Kamis 865 smp/jam dan hari Minggu 578,02 smp/jam. Nilai derajat kejenuhan rata-rata 0,44 dan tingkat pelayanan termasuk pada katagori C yang bermakna bahwa Sp. Jalan Elak-Jembatan Alue Awe arus lalulintasnya masih stabil dan kecepatan makin terbatas. Hasil pengamatan langsug di lapangan mendekati dengan hasil penelitian yang berarti rencana pembangunan jalan dua jalur dua arah sudak layak untuk dilaksanakan.
PERENCANAAN ULANG SISTEM MANAJEMEN LALU LINTAS DARI TIGA FASE MENJADI EMPAT FASE
Authors: Akbar Said Jalalul , Zulfhazli Zulfhazli , Sinulingga Andi Syahputra
Published: February 2018

Untuk meningkatkan pelayanan suatu jaringan jalan, mengurangi potensi konflik, pengurangan panjang antrian serta peningkatkan kapasitas simpang perlu dilakukan sebuah perencanaan ulang sistem manajemen lalu lintas yang baik dan terpadu. Adapun tujuan dalam penelitian ini adalah untuk mengidentifikasi dan menentukan sistem bersinyal untuk mengurangi potensi konflik lalu lintas yang terjadi. Analisis menggunakan Metode (MKJI) 1997 dengan bantuan program Sidra Intersection 5.1. Data primer terdiri dari volume lalu lintas, sedangkan data sekunder terdiri dari kondisi lingkungan, termasuk ukuran kota dan jumlah penduduk. Hasil pada kondisi eksisting didapatkan nilai derajat kenjenuhan 0.60, panjang antrian 61 m, tundan 31.5 detik, dan level of service (LOS)  C dimana arus lalu lintas pada persimpang tersebut masih stabil, tetapi kecepatan perjalanan dan kebebasan bergerak dipengaruhi oleh besarnya volume lalu lintas, sehingga pengemudi tidak dapat lagi memilih kecepatan yang diinginkan. Sedangkan hasil yang didapatkan setelah dilakukan perubahan fase dari 3 (tiga) fase ke 4 (empat) fase didapatkan nilai DS 0,87, panjang antrian 135 m, tundan 53,3 detik, dan LOS D, artinya arus lalu lintas mulai tidak stabil, perubahan volume lalu lintas sangat berpengaruh terhadap besarnya kecepatan perjalanan, hal ini menunjukkan perubahan Sistem Manajemen Lalu Lintas pada Simpang Empat Baiturrahim Kota Lhokseumawe belum tepat dilakukan perubahan jumlah fase dari 3 (tiga) fase ke 4 (empat) fase
Peningkatan Kemampuan Mendeskripsikan Sifat–sifat Magnet dengan Pendekatan Scientific Siswa Kelas V SDN Balowerti I Kota Kediri Tahun Pelajaran 2015 / 2016
Authors: Sumariati Endang
Published: February 2018

Hasil belajar siswa pada pembelajaran mendeskripsikan sifat – sifat magnet menunjukkan bahwa 51 % siswa mendapatkan nilai dibawah KKM. Dari hasil itulah penulis mengadakan penelitian tindakan kelas. Penelitian ini bertujuan untuk memperbaiki KBM dan meningkatkan hasil belajar siswa dengan menggunakan pendekatan scientific. Sasaran perbaikan pembelajaran ini adalah siswa kelas V SDN Balowerti I Kediri yang berjumlah 37 siswa. Data diperoleh melalui observasi selama proses KBM dan tes untuk mengukur hasil belajar siswa.Selama siklus I dan II telah terjadi peningkatan baik keaktifan siswa maupun hasil belajar siswa. Rata – rata hasil belajar siswa setelah pembelajaran awal adalah 66,47; 51 % belum tuntas; 49 % tuntas. Hasil siklus I nilai rata – rata menjadi 76,35; 24% belum tuntas; 76 % tuntas. Sedangkan hasil siklus II nilai rata – rata meningkat menjadi 82,03; 11% belum tuntas; dan 89% tuntas.Jadi dengan pendekatan scientific dalam pembelajaran mendeskripsikan sifat – sifat magnet dapat membantu meningkatkan keaktifan dan hasil belajar siswa serta dapat membantu memperbaiki cara mengajar guru selama melaksanakan KBM di SDN Balowerti I Kediri.
Penerapan Model Koopertif Tipe Think Pair Share Untuk Meningkatkan Hasil Belajar Siswa Mata Pelajaran IPA Materi Perubahan Sifat Benda Pada Siswa Kelas V SDN Banaran 1 Kediri Tahun Pelajaran 2016 / 2017
Authors: Mariyati Nina
Published: February 2018

Latar belakang masalah dalam penelitian ini adalah hasil belajar siswa kelas V pada mata pelajaran IPA pada kompetensi dasar menyimpulkan hasil penyelidikan tentang perubahan sifat benda menunjukkan hasil yang kurang optimal. Dari 28 siswa: yang mencapai nilai KKM sebesar 75 baru 11 siswa (39:28%) sedangkan siswa yang belum mencapai nilai KKM berjumlah 17 siswa (60,71%). Salah satu upaya yang dapat dilakukan guru untuk menjawab permasalahan di atas adalah dengan penerapan model pembelajaran kooperatif tipe Think Pair Share didukung dengan media gambar dalam pembelajaran IPA. Tujuan dari penelitian ini adalah untuk mengetahui peningkatan hasil belajar IPA melalui penerapan model kooperatif tipe Think Pair Share dengan media gambar pada siswa kelas V SDN Banaran 1 Kecamatan Pesantren Kota Kediri Semester I Tahun Pelajaran 2016/2017. Jenis penelitian ini adalah penelitian tindakan kelas. Subyek yang diteliti adalah siswa kelas V SDN Banaran 1 Kecamatan Pesantren Kota Kediri. Hasil analisis data penelitian menunjukkan bahwa ada peningkatan hasil belajar IPA dengan menerapkan model kooperatif tipe TPS dengan media gambar. Hal ini terlihat pada; (1) ketuntasan belajar; pra siklus 39,29%, siklus 160:71 %, siklus II 89,29%. (2) Rata- rata kelas; pra siklus 66,78, siklus I 74,64, dan siklus II 81,74. (3) Skor minimal; pra siklus 40, siklus I 50, dan siklus II60. (4) skor maksimal; pra siklus 90, siklus I 100, dan siklus II 100. Dengan demikian dapat disimpulkan bahwa penerapan model kooperatif tipe Think Pair Share dengan media gambar dapat meningkatkan hasil belajar IPA pada siswa kelas V SDN Banaran 1 Kecamatan Pesantren Kota Kediri Semester I Tahun Pelajaran 2016/2017. Berdasarkan dari hasil penelitian ini disarankan bahwa model kooperatif tipe Think Pair Share perlu disosialisasikan kepada guru dan diterapkan dalam pembelajaran IPA terutama untuk meningkatkan hasil belajar siswa. Penelitian lebih lanjut peri u dilakukan sebagai pengembangan diri sehingga dapat mengembangkan penelitian dalam ruang lingkup yang lebih luas.
PICO-SATELLITE DETUMBLING SIMULATION USING MAGNETIC ATITUDE ACTUATOR (SIMULASI DETUMBLING PADA SATELIT PIKO MENGGUNAKAN AKTUATOR SIKAP MAGNETIK)
Authors: Muksin Ali , Poetro Ridanto Eko , Triharjanto Robertus Heru
Published: February 2018

One of the methods to control Nano/pico-satellite’s attitude is using magneto-torquers as attitude actuators. ITB, at the moment is planning to develop a cubesat. Therefore, the objective of the research was to investigate the performance of such attitude control system for 3U class cubesat. The research used Matlab/simulink-based satellite simulator developed by LAPAN and ITB, and B-dot control law. The advantages of the method are that the actuators are small and lighter compared to the other type of actuators, such as momentum wheels or reaction wheels. However, the disadvantages is that the torques can be created only when the actuator oriented at non-zero angle with local magnetic field. The results showed that the attitude control system could performed the detumbling operation, with the best transient time at about two orbits period. Varying the gain parameter in the controller may result into variation of transient time and even unstability.   AbstrakSalah satu cara untuk mengendalikan sikap satelit nano/piko adalah dengan menggunakan magneto-torquer sebagai aktuator. Saat ini ITB tengah mewacanakan pengembangan cubesat, sehinggga tujuan dari penelitian ini adalah untuk mengevaluasi kinerja sistem kendali sikap berdasarkan medan magnet Bumi pada cubesat kelas 3U. Penelitian ini menggunakan simulator satelit berbasis MATLAB/simulink yang dikembangkan oleh LAPAN dan ITB, moda kendalinya berbasis hukum kendali b-dot. Keuntungan dari sistem kendali ini adalah ukuran dan beratnya yang kecil, dibandingkan dengan moda kendali lain, seperti momentum wheel atau reaction wheel. Sementara kerugiannya adalah hanya bisa menghasilkan torsi saat aktuator mempunyai sudut tidak nol dengan medan magnet Bumi. Hasil menunjukkan bahwa moda kendali tersebut dapat melakukan manuver de-tumbling, dengan waktu transient terbaik mendekati dua periode orbit. Juga ditunjukkan bahwa variasi waktu transient dan ketidakstabilan dapat diperoleh dengan memvariasikan parameter gain pada kontroler.
Pengaruh Penambahan Karboksimetil Selulosa (Cmc) Terhadap Tingkat Crosslinking dan Kuat Tarik Peo Hidrogel Film
Authors: Haryanto Haryanto , Aeni Anissa Nur
Published: February 2018

Penggunaan hidrogel film pada bidang kesehatan dan pertanian berkembang dengan pesat, hal ini di karenakan karakteristik istimewa dari hidrogel yang mampu menyerap air dan mempertahankan kandungan air didalamnya sehingga memiliki sifat lembut serta dapat dipakai pada aplikasi medis.  Hidrogel film yang dibuat menggunakan bahan dasar polietilene oksida memiliki kekuatan mekanik yang rendah. Untuk itu perlu dikembangkan hidrogel film yang memiliki karakteristik mekanik yang lebih baik dengan menambahkan karboksi metil selulosa (cmc) didalam larutan polietilen oksida. Berbagai komposisi larutan cmc/peo (5%, 10%, 15% dan 20%) diradiasi dengan menggunakan sinar electron beam untuk mendapatkan jaringan network diantara polimer yang diradiasi. Kandungan cmc mempengaruhi berbagai karakteristik hidrogel film seperti fraksi gel, rasio swelling, sifat mekanik.  Hasil penelitian menunjukkan bahwa pada penambahan cmc sampai dengan 10%, semakin tinggi kandungan cmc, maka tingkat kroslinking, kuat Tarik dan persen pemanjangan juga semakin naik. Sebaliknya semakin tinggi kandungan cmc, maka rasio swelling justru akan semakin menurun.
Rancang Bangun Game Edukasi Calista Sebagai Upaya Peningkatan Belajar Anak TK Berbasis Android
Authors: Krisbiantoro Dwi , Fatma Khoerun Nur
Published: February 2018

Program pendidikan untuk anak merupakan salah satu komponen dalam penyelenggaraan pendidikan anak usia dini. Penggunaan game sebagai sarana pendidikan bukan hal yang salah, karena game bersifat menghibur. Game merupakan bagian yang tidak terpisahkan dari keseharian anak dan dianggap memiliki banyak dampak negatif jika tidak mendapatkan pengawasan dari orangtua. Salah satu penggunaan smartphone di dalam proses pembelajaran yaitu melalui game edukasi. Tujuan dari penelitian adalah membuat game edukasi pengenalan membaca dan merangkai kata untuk taman kanak-kanak berbasis android. Metode Pengembangan sistem yang digunakan adalah MDLC (Multimedia Development Life Cycle). Dalam pembuatannya menggunakan software Unity 3D. Hasil penelitian ini berupa game edukasi calista untuk taman kanak-kanak berbasis android. Kata Kunci : Game edukasi, Android, Membaca dan Menulis,Unity
Peramalan Mahasiswa Baru Ft dan Fkip Um Purwokerto dengan Model Arima
Authors: Muhammad Malim , Harjono Harjono , Akhsani Lukmanul
Published: February 2018

Saat ini UMP telah memiliki 11 Fakultas dan 33 Program Studi. Jumlah mahasiswa UMPmeningkat setiap tahunnya. Hal ini terlihat dari jumlah mahasiswa baru yang semakin banyakdi setiap penerimaan mahasiswa baru. Namun, jumlah mahasiswa baru masih belummencapai target yaitu 3500 mahasiswa. Berbagai macam strategi dan cara sudah dilakukanoleh pihak Biro Penerimaan Mahasiswa Baru (BPMB) UMP untuk mencapai target tersebut.Namun, beberapa strategi tersebut tidak tepat sasaran, sehingga minat calon mahasiswatidak sesuai harapan. Untuk itu perlu dilakukan suatu terobosan untuk meningkatkan jumlahmahasiswa baru UMP. Kelebihan model ARIMA adalah memiliki sifat yang fleksibel(mengikuti pola data), memiliki tingkat akurasi peramalan yang cukup tinggi dan cocokdigunakan untuk meramal sejumlah variabel dengan cepat, sederhana, akurat karena hanyamembutuhkan data historis untuk melakukan peramalannya. Model ARIMA(1,1,1) tanpakonstan merupakan model yang terbaik untuk meramalkan data mahasiswa FKIP dan FT,hasil peramalan menunjukkan bahwa FKIP terjadi trend kenaikan positif mencapai 649mahasiswa di tahun 2021 dan dapat dimaksimalkan mencapai 1080 mahasiswa, sedangkanhasil peramalan menunjukkan bahwa FT terjadi trend penurunan mencapai 187 mahasiswa ditahun 2021 dan dapat dimaksimalkan mencapai 355 mahasiswa.Kata kunci: Peramalan, mahasiswa baru, ARIMA
Improving Students’ Metaphor Interpretation: A Conceptual Metaphor Approach to Interpret Metaphors in the Song Titanium (2011)
Authors: Adam Muhammad
Published: February 2018

This research is conducted to measure how participants’ understanding to a source domain of metaphor will help them to better interpret metaphor in “Titanium” song by using the Conceptual Metaphor Theory (CMT). The CMT approach is introduced by explicitly explain the characteristic of source domain of metaphor to participants. The participants of this research are 10 students of semester V of Faculty of Letters – University of Balikpapan, all native Indonesian speakers. This research is qualitative research, and uses the participants’ written answer as data source. Based on the data analysis, it is concluded that by understanding the source domain of metaphor, participants have a better and improved understanding in interpreting metaphor. In other words, the participants’ comprehension to the intended message of metaphor is improved.
Woman’s Suppression in Azab dan Sengsara: A Feminist Perspective
Authors: Hafsah Siti
Published: February 2018

Azab dan Sengsara is an Indonesian novel written by Merari Siregar (1921), one of the famous roman novelists in Indonesia in Balai Pustaka era. The novel is a material object of the present study. The study aims at revealing oppression, violence, exploitation of woman and all varieties of injustice to woman, revealing social symptoms ideological forms containing in the novel as a manifestation of a company condition in old era. This research uses a qualitative method and approaches of literary feminist and literary sociology as its support. This research succeeds in answering the problems of woman life, as manifestation of real life which reflects kinds of woman’s life in society of Indonesian, for example: marriage, custom, violence, etc. for the hero “Mariamin” (a woman). She is the manifestation of the authority life, besides talking on oppression of woman images of its community lives. The author succeeded offering solutions with various contradictions, conflicts, handling down the novel as manifestation in real life.
Analysis of Phase Structure Realization in Classroom Discourse: A Study of Systemic Functional Linguistics
Authors: Suparman Suparman , Charmilasari Charmilasari
Published: February 2018

This study aims at describing the phase structure of classroom discourse in SMAN 1 Palopo. The research design employed is a qualitative study. The research location was SMAN 1 Palopo in which the population of the current study was classroom discourse in class X; while the sample were clauses that indicate the phase and interpersonal meaning of the teacher and the students who were selected using the purposive sampling technique. The source of data were the discourses in the biology, Physics and civic education classes. This study uses the theory of systemic functional linguistics to identify the clause phase structure consisting of phases and each sub-phase consists of 5 phases. Phase is used to transfer the science that aims to guide students to understand the material. Sub-phase comprises 33 phases which were divided into 4 static sub-phases and 29 dynamic sub-phases. System dominant mode shows the role of teachers in transferring science or knowledge expect information provided will be accepted by the students.
A PHENOMENOLOGICAL STUDY OF THREE UNIVERSITY STUDENTS’ EXPERIENCES IN PROJECT BASED LEARNING
Authors: Mali Yustinus Calvin Gai
Published: February 2018

Researchers in the past have explored practices of Project Based Learning (PBL) in various educational contexts. Nevertheless, previous studies that examine project-based learning in English as a Foreign Language (EFL) contexts are still limited in numbers particularlythrough the eyes of Indonesian university students. This study aims to look into meanings of PBL in learningSecond Language Acquisition (SLA) at English Language Education Program, Dunia University Indonesia. The study specifically described how three students in the class felt about PBL as implemented in two main classroom projects, how they experienced doing it, and how they provided meaning to it. The students’experiences were recalled through an in-depth phenomenological interview. The results of the study were the experiences in the form of narratives and myinterpretation of emerging themes in the narratives as the meanings of PBL in learning SLA. The study appeared to continue positive trends of PBL practices in Englishlanguage teaching and learning specifically in content-based instructions.Keywords: Project Based Learning, Projects, SLA,Phenomenological Study
Pursuit Of An Ideal Model For Community Eye Health — Non-Governmental Organisations (NGOs)
Authors: Hnin Hnin , Tan Hui Yi , Agrawal Kajal , Agrawal Rupesh
Published: February 2018

Visual impairment is a crippling condition affecting quality of life and depriving patients of many opportunities. It is associated with increased mortality rates directly through occurrence of adverse events such as falls and impaired emotional well-being, and indirectly through visual impairment brought upon by systemic conditions such as diabetes and hypertension (Foong et al. 2008, Fong et al. 2014, Khanna et al. 2013, Song et al.2014, Wang et al. 1999). The number of patients suffering from reversible causes of blindness is substantial. In 2010, World Health Organisation estimates that 285 million (4.25%) of the world’s population is visually impaired, of which 39 million (14%) are blind. Approximately, 80% of the visual impairment is preventable. Notable causes of preventable blindness include cataracts (51%), glaucoma (8%), age-related macular degeneration (5%), corneal opacities (4%), trachoma (3%) and uncorrected refractive errors (3%) (WHO, 2015). These conditions can be easily diagnosed and treated by ophthalmologists if adequate resources are available. It is increasingly challenging for the ophthalmologists and current healthcare systems to meet the ever-expanding demands of patients with reversible causes of blindness.
Investigations on Vehicle Interaction with CWR Tracks Considering Some Aspects of Rail Support Modulus
Authors: Mosayebi Seyed-Ali , Zakeri Jabbar-Ali , Esmaeili Morteza
Published: February 2018

One of the important parameters for controlling the behavior of continuous welded rail (CWR) in railway tracks is rail support modulus. Reviewing the technical literature reveals some elapsed points in this regard such as continuous or discrete supports, V-shaped rail irregularity and geometrical stiffness which can considerably affect on the vehicle-track dynamic interaction. So, the present study was allocated to numerical investigating the effects of aforementioned parameters on the vehicle-track dynamic interaction. In this matter, the finite element model of ballasted railway track in conjunction with multi-body dynamics model of vehicle was developed and they simultaneously solved numerically. This preliminary model was verified through comparison of the results with published works in this area. Consequently the model was promoted considering continuous and discrete support condition, implementing the V-shaped irregularity and geometrical stiffness. In each step, the results of the extended models were completely presented in the form track structure response.
Effect of Calcareous Fly-ash Processing Methods on Rheological Properties of Mortars
Authors: Gołaszewski Jacek , Giergiczny Zbigniew , Ponikiewski Tomasz , Kostrzanowska-Siedlarz Aleksandra , Miera Patrycja
Published: February 2018

The paper presents the results of research into the influence of calcareous fly ash (CFA) processing methods on the rheological properties of mortars. The study consisted of a comparison of changes of the rheological properties (plastic viscosity and yield value) of the mortars during 90 minutes when CFA, unprocessed or processed by grinding, grain separation, or selective collection from the filter, was used as a substitute for a part of the cement. The results show that processing of CFA decreases its negative influence on the rheological properties; the efficient methods are separation or grinding, while the effect of selective collection is almost insignificant.
A Numerical Investigation into the Ultimate Strength of Steel Cellular Beams with Semi-Rigid Connections
Authors: Madjour Abdelhalim , Soltani Mohamed Rédha , Harkati El Haddi
Published: February 2018

Over the past several years, extensive theoretical, numerical and experimental research has been carried out on the structural behavior of steel beams with web openings of various shapes. However, in all these studies, cellular beams have always been treated or designed as simply supported at their ends. In other words, the beam to column connections are assumed as nominally pinned. The main aim of the present paper is to perform numerical simulations to determine whether the use of end plate connections, instead of simple connections, could enhance the global bending and/or shear capacity of cellular beams with circular and sinusoidal web openings.Interaction between a circular or sinusoidal opening in the beam web and endplate connection has also been studied. Data obtained from a number of experimental research programs on steel solid beam to column connections and simply supported cellular beams, available in the literature, were utilized to validate the numerical models developed in this paper. The numerical simulations using ABAQUS software were performed on full scale cellular steel beams connected to the columns with seven types of endplate connections. The results were compared with those obtained for similar simply cellular beams.
Properties of Portland Cement Mortar with Substitutions of Natural and Expanded Perlite
Authors: Sánchez Mauricio Arreola , Molina Wilfrido Martínez , García Hugo Luis Chávez , Guzmán Elia Mercedes Alonso , Acosta Andrés A. Torres , Ortega José María Ponce
Published: February 2018

The present research deals with the feasibility of using high-temperature pozzolans such as Natural Perlite (NP) and Expanded Perlite (EP), different dosagues of additions were made to mortars in order to perform their mechanical properties. Mortars were subjected to destructive tests in hardened state: compression, tension, flexion and adhesion strength; as well as non-destructive tests in hardened state: ultrasonic pulse velocity (UPV), electrical resistivity (ER), density (ρ) and total porosity (PT); in addition to attack by sodium sulfate at 90 days. The percentages of the substitutions were 5%, 10%, 15%, 20% and 30% by weight of Portland cement mass (PC) relative to a control mortar (cement-sand-water). With the partial replacement of the cement and according to the tests carried out, it can be observed that the problem of durability and CO2 emissions is significantly reduced and, consequently, an energy saving and a lower environmental impact are promoted.
Effect of the Water-Rock Interaction on the Creep Mechanical Properties of the Sandstone Rock
Authors: Luo Zuosen , Li Jianlin , Jiang Qiao , Zhang Yinchai , Huang Yisheng , Assefa Eleyas , Deng Huafeng
Published: February 2018

After the commencement of the Three Gorges hydropower project, the reservoir water level has been fluctuating by 30 m (145–175 m) annually. The stability of the bank slope has been highlighted since the reservoir water level has been repeated. Apart from that, the long-term effect of the water-rock interaction on the rheological and mechanical properties of the rock was not studied sufficiently. Therefore, a typical sandstone rock was brought from the Three Gorges reservoir area, to meet the purpose of this study. Then, a series of water-rock interaction tests were conducted to simulate the fluctuations in the reservoir water level. Based upon the experimental results, the following points were pointed out: 1) for the first three successive water-rock interaction cycles, the long-term strength of the rock was dramatically reduced. In contrast, the rate of reduction on the long-term strength of the rock was getting a steady state after six successive water rock interactions.2) At the failure stress level, the rock specimens exhibited similar characteristics under different water-rock interaction cycles. 3) The densely compacted micro structures of the sandstone rock were transformed into loose and porous state.
Use of the Artificial Neural Networks to Estimate the DRF for Eurocode 8
Authors: Benahmed Baizid , Hamoutenne Malek
Published: February 2018

The damping reduction factor (DRF) is used in earthquake engineering in order to estimate the seismic response of buildings with high damping ratio from the one which has damping ratio equal to 5%. Many expressions were given to this factor as a function of different parameters in literature. The concern of these formulations is to find a simple and a reliable formulation, which presents a challenge. This is the major reason to look for a new simple method to estimate the DRF values with a good approximation. The primary objective of this work is to develop a new method to estimate the DRF using Artificial Neural Networks (ANN). This method is developed for the seismic Eurocode 8 (EC8). In a first step, seeking for sets of ground motions records that gives as average the best approximation of the target spectra of EC 8. Afterward, those records are used to estimates the exact response spectra and the DRF values in function of damping ratio ξ and period (T) through a time History Analysis. In a second step, those results are used as neural networks database to predict the DRF in function of ξ and T. The proposed approach is original and the associated results are interesting and promising.
Development of a Lateral Performance Prediction Equation (LPPE)
Authors: Karaca Hakan
Published: February 2018

The need to find out the behaviour of structures under the influence of lateral loading in the simplest and most accurate way encourages researchers to seek and develop different methods. The efficiency, ease of application, and time to reach the desired results are the factors which have influenced the way these methods are developed. In a similar stance, the aim of this study is to develop a method to evaluate the structures in terms of lateral performances without consuming too much time and effort. To this end, by using the analytical methods, it is planned to develop an equation to model the relationship between global drift ratio as the lateral performance variable and a number of selected geometrical and structural variables. This equation is named as lateral performance prediction equation (LPPE) by the author.
Adrenal Stress and Physical Performance During Military Survival Training
Authors: Szivak Tunde K. , Lee Elaine C. , Saenz Catherine , Flanagan Shawn D. , Focht Brian C. , Volek Jeff S. , Maresh Carl M. , Kraemer William J.
Published: February 2018

INTRODUCTION: The purpose of this research was to evaluate neuroendocrine and physical performance responses in sailors and Marines undergoing U.S. Navy Survival, Evasion, Resistance, and Escape (SERE) training.METHODS: Participants were 20 men (Age: 25.3 ±
3.6 yr; Height: 178.1 ± 6.1 cm; Weight: 83.7 ± 12.6 kg). Men were further split into high fit (N = 10) and low fit (N = 10) subgroups based on physical fitness test scores. Blood samples were obtained at baseline (T1), stress (T2), and recovery (T3) timepoints,
and were analyzed for plasma epinephrine, plasma norepinephrine, plasma dopamine, serum cortisol, serum testosterone, and plasma neuropeptide Y. Vertical jump and handgrip tests were performed at T1 and T2.RESULTS: Stress hormone concentrations were significantly elevated at T2,
with a concomitant reduction in testosterone concentrations. NPY concentrations did not increase at T2, but decreased significantly at T3. Subjects maintained performance on vertical jump and handgrip tests from T1 to T2. Significant between group differences were observed in norepinephrine
(high fit: 3530.64 ± 2146.54 pmol · L−1, low fit: 4907.16 ± 3020.85 pmol · L−1) and NPY (high fit: 169.30 ± 85.89 pg · ml−1, low fit: 123.02 ± 88.86 pg · ml−1)
concentrations at T3.CONCLUSION: This study revealed that despite significant increases in stress hormone concentrations in all subjects during SERE, fitter subjects exhibited differential hormonal responses during recovery, with quicker return of norepinephrine and NPY to baseline
concentrations. This suggests physical fitness level may have a protective effect in recovery from periods of high stress military training.Szivak TK, Lee EC, Saenz C, Flanagan SD, Focht BC, Volek JS, Maresh CM, Kraemer WJ. Adrenal stress and physical performance during military survival training. Aerosp Med Hum Perform. 2018; 89(2):99–107.
Severe Arthritic Changes Following Acetabular Labral Repair and Femoroplasty in an Air Force Pilot
Authors: Sardon Christopher J. , Resnick Mathew L.
Published: February 2018

BACKGROUND: Acetabular labral tears in the hip have become an increasingly common finding in active duty members due to improved diagnostic capabilities. This has led to a dramatic increase in operative management despite a lack of evidence to support clear long-term benefits.
Literature review demonstrated overwhelmingly positive short-term outcomes for labral repairs; however, scattered case reports exist demonstrating debilitating outcomes in young patients, ultimately resulting in total hip arthroplasty.CASE REPORT: A 27-yr-old pilot originally presented
with groin pain. Initial X-ray demonstrated a CAM lesion of the right hip and subsequent MRA showed an acetabular labral tear. The patient underwent open arthrotomy with labral repair and femoroplasty with minimal improvement in symptoms. Repeat imaging over 2 yr showed early onset osteoarthritis
with rapid progression and a recurrent labral tear. Due to the significant progression of osteoarthritis, the patient was given the choice between a repeat labral repair and total hip arthroplasty. The patient elected for hip arthrotomy with labral repair and extensive synovectomy, which yielded
minimal improvement in symptoms.DISCUSSION: Acetabular labral tears have become a hot topic in the field of orthopedics as a result of a surge in diagnoses likely due to improvements in imaging, most notably MRAs. This has led to considerable debate regarding how to best manage
this condition. The literature overwhelmingly shows positive short-term outcomes for surgical management; however, long-term follow-up studies are lacking. The literature has demonstrated multiple case reports resulting in significant complications as a result of these operations, including
chondrolysis and eventual need for total hip arthroplasty. Therefore, patient selection is critical as the population tends to be young and active, and the potential complications can be catastrophic. In any case, it is clear that further research is required.Sardon CJ, Resnick ML.
Severe arthritic changes following acetabular labral repair and femoroplasty in an air force pilot. Aerosp Med Hum Perform. 2018; 89(2):147–150.
Augmenting Human Performance in Remotely Piloted Aircraft
Authors: Gruenwald Christina M. , Middendorf Matthew S. , Hoepf Michael R. , Galster Scott M.
Published: February 2018

INTRODUCTION: An experiment in a program of research supporting the sense-assess-augment (SAA) framework is described. The objective is to use physiological measures to assess operator cognitive workload in remotely piloted aircraft (RPA) operations, and provide augmentation
to assist the operator in times of high workload. In previous experiments, physiological measures were identified that demonstrate sensitivity to changes in workload. The current research solely focuses on the augmentation component of the SAA paradigm. This line of research uses a realistic
RPA simulation with varying levels of workload.METHODS: Recruited from the Midwest region were 12 individuals (6 women) to participate in the experiment. The subjects were trained to perform a surveillance task and a tracking task using RPAs. There was also a secondary task in which
subjects were required to answer cognitive probes. A within subjects factorial design was employed with three factors per task. Subjective workload estimates were acquired using the NASA-TLX. Performance data were calculated using a composite scoring algorithm.RESULTS: Augmentation
significantly improved performance and reduced workload in both tasks. In the surveillance task, augmentation increased performance from 573.78 to 679.04. Likewise, augmentation increased performance in the tracking task from 749.39 to 791.81. Augmentation was more beneficial in high workload
conditions than low workload conditions.DISCUSSION: The increase in performance and decrease in workload associated with augmentation is an important and anticipated finding. This suggests that augmentation should only be provided when it is truly needed, especially if the augmentation
requires additional assets and/or resources.Gruenwald CM, Middendorf MS, Hoepf MR, Galster SM. Augmenting human performance in remotely piloted aircraft. Aerosp Med Hum Perform. 2018; 89(2):115–121.
Precooling and Warm-Up Effects on Time Trial Cycling During Heat Stress
Authors: Al-horani Ramzi A. , Wingo Jonathan E. , Ng Jason , Bishop Phillip , Richardson Mark
Published: February 2018

BACKGROUND: Heat stress limits endurance exercise performance. Combining precooling and warm-up prior to endurance exercise in the heat may exploit the benefits of both strategies while avoiding the potential negative consequences of each. This study tested the hypothesis that
precooling combined with warm-up improves time trial cycling performance in the heat relative to either treatment alone.METHODS: Nine healthy men completed three 16.1-km time trials in 33°C after: 1) precooling (ice slurry and ice vest) alone (PREC); 2) warm-up alone (WU); or
3) PREC plus WU (COMBO).RESULTS: Tre was lower after PREC compared to WU throughout exercise and lower than COMBO for the first 12 km; COMBO was lower than WU for the first 4 km. Tsk during PREC was lower than COMBO and WU for the first 8 km, and lower in COMBO
than WU for the first 4 km. PREC lowered pre-exercise heart rate relative to COMBO and WU (68 ± 10, 106 ± 12, 101 ± 13 bpm, respectively), but it increased similarly during exercise. Local sweat rate (SR) was lower in PREC (0.1 ± 0.1 mg · cm−2
· min−1) than COMBO (0.5 ± 0.2 mg · cm−2 · min−1) and WU (0.6 ± 0.2 mg · cm−2 · min−1) for the first 4 km. Treatments did not differentially affect performance
(PREC = 31.9 ± 1.9 min, COMBO = 32.6 ± 2.7 min, WU = 33.1 ± 2.9 min).DISCUSSION: We conclude precooling alone or with warm-up mitigated thermal strain during exercise, but did not significantly improve 16.1-km cycling time trial performance.Al-horani
RA, Wingo JE, Ng J, Bishop P, Richardson M. Precooling and warm-up effects on time trial cycling during heat stress. Aerosp Med Hum Perform. 2018; 89(2):87–93.
A Text-Independent Speaker Authentication System for Mobile Devices
Authors: Thullier Florentin , Bouchard Bruno , Menelas Bob-Antoine
Published: February 2018

This paper presents a text independent speaker authentication method adapted to mobile devices. Special attention was placed on delivering a fully operational application, which admits a sufficient reliability level and an efficient functioning. To this end, we have excluded the need for any network communication. Hence, we opted for the completion of both the training and the identification processes directly on the mobile device through the extraction of linear prediction cepstral coefficients and the naive Bayes algorithm as the classifier. Furthermore, the authentication decision is enhanced to overcome misidentification through access privileges that the user should attribute to each application beforehand. To evaluate the proposed authentication system, eleven participants were involved in the experiment, conducted in quiet and noisy environments. Public speech corpora were also employed to compare this implementation to existing methods. Results were efficient regarding mobile resources’ consumption. The overall classification performance obtained was accurate with a small number of samples. Then, it appeared that our authentication system might be used as a first security layer, but also as part of a multilayer authentication, or as a fall-back mechanism.
Free Monoterpene Isomer Profiles of Vitis Vinifera L. cv. White Wines
Authors: Song Mei , Fuentes Claudio , Loos Athena , Tomasino Elizabeth
Published: February 2018

Monoterpene compounds contribute floral and fruity characters to wine and are desired by grape growers and winemakers for many white wines. However, monoterpene isomers, especially monoterpene enantiomers, have been little explored. It is possible to identify and quantitate 17 monoterpene isomers in 148 varietal wines from eight grape varieties; Chardonnay, Gewürztraminer, Muscat, Pinot gris, Riesling, Sauvignon blanc, Torrontes, and Viognier in two vintages by Headspace solidphase microextraction multidimensional gas chromatography mass spectrometry (HS-SPME-MDGC-MS). Results obtained from general linear models and discriminant analysis showed significant differences for the isomer profiles and enantiomer fractions among the eight grape varieties and four wine styles. The high R2 values from the fitted line show low variation in enantiomeric differences based on variety. These results provide an overview of the monoterpene isomers of wide varietal wines, and support that isomer profiles and enantiomer fractions could differentiate our wines by varietal and wine style.
An Automatic User Grouping Model for a Group Recommender System in Location-Based Social Networks
Authors: Khazaei Elahe , Alimohammadi Abbas
Published: February 2018

Spatial group recommendation refers to suggesting places to a given set of users. In a group recommender system, members of a group should have similar preferences in order to increase the level of satisfaction. Location-based social networks (LBSNs) provide rich content, such as user interactions and location/event descriptions, which can be leveraged for group recommendations. In this paper, an automatic user grouping model is introduced that obtains information about users and their preferences through an LBSN. The preferences of the users, proximity of the places the users have visited in terms of spatial range, users’ free days, and the social relationships among users are extracted automatically from location histories and users’ profiles in the LBSN. These factors are combined to determine the similarities among users. The users are partitioned into groups based on these similarities. Group size is the key to coordinating group members and enhancing their satisfaction. Therefore, a modified k-medoids method is developed to cluster users into groups with specific sizes. To evaluate the efficiency of the proposed method, its mean intra-cluster distance and its distribution of cluster sizes are compared to those of general clustering algorithms. The results reveal that the proposed method compares favourably with general clustering approaches, such as k-medoids and spectral clustering, in separating users into groups of a specific size with a lower mean intra-cluster distance.