bluuebunny/crossref_metadata_2025 huggingface dataset:
THE EFFECT OF NONLINEAR DAMPING TO A DYNAMICAL SYSTEM WITH CENTER PHASE PORTAIT
Authors: Kurniawan Kus Prihantoso , Arifah Husna
Published: March 2017

This paper discusses the effect of nonlinear damping to a 2-dimesional system that has center phase portrait. The phase portraits of the damped system are drawn for 3 different values of parameter. These phase portraits stand as the numerical proof of phase portrait change. To prove the change analiticaly, we use the theorem that guarantee the existence of periodic solution. The result shows that nonlinear damping changes the phase portrait topologically. It means that the system undergoes a generalized Hopf bifurcation. Keywords: generalized Hopf bifurcation, center phase portrait, periodic solution
EMBRYONIC DEVELOPMENTAL ANOMALY IDENTIFICATION OF GIANT MIMI-MINTUNO (Tachupleus gigas) DURING ARTIFICIAL INCUBATION PERIOD IN THE VIAL BOTTLES
Authors: Ciptono Ciptono , Harjana Tri
Published: March 2017

This study aims to reveal the phenomenon of presence / absence of anomalies in the early development of Mimi-giant mintuno (Tachypleus gigas) during artificial incubation in the vial bottles. Samples 5 eggs are fertilized incorporated into transparent 50 bottles and vials each filled with clear sea water medium. Embryonic stages (instars) hatch, bottles marked, then dumped seawater medium was replaced with 4% formalin solution and glycerin amount of 5% by volume, up to ¾ of the total volume of the vial bottles. Standard stages of giant Mimi-mintuno embryonic normal development Mimi-mintuno according to Itow (1988). The description type of anomalies contained in the post-hatching embryo development. The observations are documented in the form of stereo-microphotograph. The results showed that there are forms anomalies: (a). Delayed development, the structure of the body is not perfect; (b). In observation of the embryo hatches, open shell and egg perivitelline membrane has been opened but delayed development, the structure of the body is not perfect; (c). Embryos after hatched perfectly, abnormalities of morphologic structure such as abnormal protrusion on the dorsal carapace part found. Keywords: Tachypleus gigas, artificially, incubation
THE OPTIMATION OF CELLULASE ENZYME OF MOLD ISOLATED FROM AGRICULTURE LAND IN WUKIRSARI AFTER MERAPI ERUPTION
Authors: Umniyatie Siti , Rakhmawati Anna , Yulianti Evy
Published: March 2017

The aim of this study was to develop potency of mold isolated from agriculture land after Merapi eruption in 2010 at Wukirsari, Cangkringan, Sleman, Yogyakaerta. The treatment were temperature and pH optimation to the cellulase enzyme activity and the protein level yield by mold isolate A 2.10, A 2.15 and B 3.18 in different substrate, avicel and carboxymethyl cellulose (CMC). This study was experimental study to find out the substrate, pH and temperature which yield the best activity and protein level from mold isolate A 2.10, A 2.15 dan B 3.18. the population of this study all of the crude enzymes from mold isolate, and the sample was 1 ml of crude enzyme which treated with different substrate, pH and temperature. The result of this study showed that the best susbtrate was avicel and the optimum temeperature and pH for isolate A.2.10 was 25 ⁰C Keywords: optimation, cellulase enzyme, cellulolytic
THE APPLICATION OF NATURAL ZEOLITE FROM CIAMIS AS TiO2 PHOTOCATALYST SUPPORT FOR RHODAMINE B DYE PHOTODEGRADATION
Authors: Agusriyanti Siti , Artsanti Pedy
Published: March 2017

The composite of zeolite-TiO2 was successfully prepared by mixing acid- activated Ciamis natural zeolite and TiO2 Degussa in absolute ethanol. The composite obtained was characterized by XRD, FT-IR and XRF. Zeolite-TiO2 composite was applied in the photodegradation of the dye of Rhodamine B in the variation of contact time (60, 75, 90, 105, 120, and 135 minutes, respectively) and initial concentration (10, 20, 40, 60, 80, 90, and 100 ppm, respectively) of Rhodamine B. The result of XRD, FT-IR, and XRF confirmed that the composite of zeolite-TiO2 was successfully synthesized. The composite showed the optimum photodegradation of Rhodamine B solution when the initial Rhodamine B concentration was 10 ppm, being equivalent to 81.8% of Rhodamine B removal for 105 minutes. Keywords: Natural Zeolit, TiO2, zeolite-TiO2composite, photodegradation, Rhodamine B
SYNTHESIS AND CHARACTERIZATION OF BIODEGRDABLE PLASTIC FROM CASAVA STARCH AND ALOE VERA EXTRACT WITH GLYCEROL PLASTICIZER
Authors: Apriyani Mery , Sedyadi Endaruji
Published: March 2017

Synthesis and characterizations of Biodegradable Plastic made of Cassava Waste Starch, glycerol, acetic acid and Aloe vera extract has done. The aims of this research are to study the influence of addition of aloe vera extract in plastics mechanics properties, water vapor transmission rate and biodegradation. There are five main steps in this research, extraction of aloe vera, cassava starch preparation from cassava waste, preparations, characterization and biodegradability study of biodegradable plastic. The addition variations of aloe vera extract that used in this research are 0.01; 0.03; 0.05; 0.07 and 0.14 grams. Results showed that the addition of aloe Vera tends to increased biodegrable plastic thickness to 0.01 mm and elongation to 32.07%. However, biodegradable plastic tensile strength tends to decreased to 23.95 Mpa. Optimum tensile strength is 3.90 Mpa and elongation is 34.43%. Optimum water vapor transmission rate is 2.40 g/m2hours. Biodegradation study of biodegradable plastic showed that addition of aloe vera extract doesn’t significantly influence in plastic degradations.
Impact of the Nutritional Educational Program to the Healthy Food Behaviour, Knowledge, Attitude and Environment for Obese Children
Authors: Said Norimah
Published: March 2017

Overweightness and obesity is a problem that has been rising in the Malaysian suburban environment. This study is conducted to evaluate the healthy food behavior, attitudes, knowledge and healthy environment of obese school children aged 10-11 years old. Obese school children received the nutritional educational program (NEP) comprised of a video, a comic reading session and a food selection game. The intervention resulted in a significant increase for healthy food behaviour, attitude and knowledge. However, there is an only minimal impact for a healthy environment. Overall, the results indicate that the nutritional educational program has positive impact in preventing obesity. Keywords: obesity, healthy food behavior, knowledge, nutritional educational program (NEP)ISSN: 2398-4287© 2017. The Authors. Published for AMER ABRA by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.
A Classification of Product Service System Concept in the Environmental Aspect to Create the Strategy of the Design of PSS
Authors: Namsawat Ornwiriya , Rugwongwan Yanin
Published: March 2017

Product Service System (PSS) is one of the procedures used to control the environmental problems arising from products and demand for product consumption. The method is aimed at creating a business system that sells products and boosts services for the maximum benefit of consumers. However, the PSS concept has many dimensions in the context of economy, society, and environment which are prioritized differently. This research is aimed at studying the literature review of PSS based on the environmental significance. The objective of this research is to analyze and classify the PSS factors in the environmental dimension and explain the factors affecting the creation of PSS strategy.Keywords: Product Service System; Design for Environment; Product Service Design Strategies; Sustainable Consumption.ISSN: 2398-4287© 2017. The Authors. Published for AMER ABRA by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.
Community Participations in Amphawa Comprehensive Planning, Thailand
Authors: Peerapun Wannasilpa
Published: March 2017

The aim of this article was to discuss community participations in Amphawa comprehensive planning, Thailand, which targeted for the year 2030. There were two objectives of the study—to discuss the effectiveness of community participations and to discuss the future land use plan. The planning methodology integrated several community participation activities into the traditional comprehensive planning process. The result of the study revealed that community participations helped reduce difficulties and save time. In terms of future land uses, several conservation related zones were designated to conserve local natural and cultural heritages and agricultural areas.Keywords: Community participations; Comprehensive planning; AmphawaISSN: 2398-4287© 2017. The Author. Published for AMER ABRA by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.
Characteristic Qualities Impacting Landed House Prices: Better homes, better livelihood
Authors: Mohamad @ Masri Muhamad Hilmi , Nawawi Abdul Hadi , Mohd Safian Edie Ezwan , Ahmad Saleh Ahmad Fawwaz
Published: March 2017

The research was conducted to find the characteristics quality of houses in Malaysia. The aim of this research was to produce the ranking characteristics of house qualities, and determining its weightages. The methodology used in this research was primarily by using the Delphi Method to ascertain characteristics quality and also Analytical Hierarchy Process to determine the ranking of the characteristics quality. Data collection gathered through a structured questionnaire that incorporates the element of Saaty’s Scale using variables outlined from review and interview. A theoretical framework of the research was established from this that will lead to future research model.Keywords: House Quality; House Price; AHP; DelphiISSN: 2398-4287© 2017. The Authors. Published for AMER ABRA by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.
Exploring the Effect of Green Element on Condominium Price in Penang
Authors: Abdullah Lizawati , Mohd Thuraiya , Nawawi Abdul Hadi , Ismail Noor Halil
Published: March 2017

The emphasis of this research is exploring the green element effect on the price of residential properties. This research identified the prices difference between GBI and non-GBI residential, further demonstrates the relationship between price and green by utilizing Multiple Regression Analysis. The samples are 471 condominiums in Penang derived from the database of NAPIC. The empirical result of the research shows that a residential building having GBI certification increased the property price by RM1009.079. Findings of this research contribute to the significant relationship between green element and condominium price, as well as indicate the impacts of GBI on the price of properties in Malaysia.Keywords: green, GBI, condominium, regressionISSN: 2398-4287© 2017. The Authors. Published for AMER ABRA by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.
Time-Varying Association of Individual BP Components with eGFR in Late-Stage CKD
Authors: Sood Manish M. , Akbari Ayub , Manuel Doug , Ruzicka Marcel , Hiremath Swapnil , Zimmerman Deborah , McCormick Brenden , Taljaard Monica
Published: March 2017

Background and objectives

The association of individual BP components with changes in eGFR in patients with late-stage CKD is unknown. The objectives of our study were to examine the associations of systolic BP, diastolic BP, and pulse pressure with continuous temporal changes in eGFR and an eGFR decline ≥30% in late-stage CKD.

Design, setting, participants, & measurements

We performed a retrospective cohort study (2010–2015) of patients with CKD in a multidisciplinary CKD clinic with an eGFR≤30. The associations of repeat measures of BP (systolic BP, diastolic BP, and pulse pressure) with eGFR were examined using general linear mixed models. The associations of BP components and eGFR decline ≥30% were examined with time-varying Cox models.

Results

In total, 1203 patients were followed for a median of 548 days (interquartile range, 292–913), with an average of 6.7 visits and BP measures per patient. Mean baseline systolic BP, diastolic BP, pulse pressure, and eGFR were 139.2 mmHg, 73.2 mmHg, 64.9 mmHg, and 16.8 ml/min, respectively. Systolic BP and diastolic BP measures over time were statistically significantly associated with changes in eGFR (P<0.001), whereas pulse pressure was not. Patients with extremes of systolic BP (<105 or >170) and high diastolic BP (>90) measures were at a higher risk of GFR decline ≥30% (systolic BP <105: hazard ratio, 1.51; 95% confidence interval, 0.98 to 2.34; systolic BP >170: hazard ratio, 1.62; 95% confidence interval, 1.05 to 2.49; referent systolic BP =121–130; diastolic BP =81–90: hazard ratio, 1.40; 95% confidence interval, 0.99 to 1.86; diastolic BP >90: hazard ratio, 1.83; 95% confidence interval, 1.21 to 2.77; referent diastolic BP =61–70). The findings were consistent after multiple sensitivity analyses. Pulse pressure was not significantly associated with risk of eGFR decline.

Conclusions

In patients referred to a multidisciplinary care clinic with late-stage CKD, only extremes of systolic BP and elevations of diastolic BP were associated with eGFR decline.
APLIKASI REKENING BERSAMA SEBAGAI MEDIASI PEMBELI-PENJUAL DALAM TRANSAKSI ONLINE STORE
Authors: Sari Sakti Essy Malays , Basry Asril
Published: March 2017

Aplikasi rekening bersama adalah aplikasi yang dibangun  untuk menghubungkan antara pembeli, penjual dan admin rekening bersama yang terintegrasi dengan baik, guna menghindari adanya kecurangan antara pembeli dan penjual. Penelitian ini merupakan pengembangan dari penelitian terdahulu, yang mana penelitian terdahulu mengggunakan dua komunikasi yaitu front end communication dan back end communication. Front end communication merupakan komunikasi antara pembeli, penjual dan admin rekening bersama yang dilakukan melalui aplikasi yang dibangun  sedangkan  back end communication merupakan komunikasi   yang dilakukan diluar dari aplikasi tersebut misalnya komunikasi antara admin rekeningg bersama dengan  kurir/ perusahaan pengiriman barang yang dilakukan merlalui telepon dan fax.  Pada penelitian ini  komuniksi antara pembeli, penjual dan admin  rekening bersama  dan  kurir/perusahaan pengiriman barang,  dilakukan hanya melalui aplikasi rekening bersama ( front end communication) . Dengan metode WDLC ( Web Development Life Cycle ). , dimana tahap pertama diawali dengan menganalisis dan mengevaluasi kembali aplikasi terdahulu untuk ditelaah lebih jauh  serta melanjutkan pengembangan perancangan dan  pengembangan aplikasi. Tahap ujicoba dilakukan dengan mengakses sebagai pembeli, penjual dan  admin rekening bersama dan kurir . Hasil yang didapat bahwa komunikasi antara pembeli, penjual dan admin rekening bersama  serta kurir dapat dilakukan secara frond end communiacation  atau komunikasi dilakukan hanya melalui aplikasi rekening bersama saja.
RANCANG BANGUN NETWORK ATTACHED STORAGE (NAS) PADA RASPBERRY Pi UNTUK PENYIMPANAN DATA TERPUSAT BERBASIS WLAN
Authors: Jannah Miftahul , Basyah Baby Lolita , Riyadi Rizki Adjie
Published: March 2017

Perkembangan teknologi informasi sekarang ini berkembang sangat pesat. Terutama pada penggunaan komputer dan gadget untuk mengakses dan berbagi data merupakan hal yang dijumpai pada kehidupan sehari-hari. Jumlah pengguna dan data-data yang terus meningkat berdampak pada kebutuhan penyimpanan data. Untuk itu dibangun NAS (Network Attached Storage) server untuk melayani kebutuhan berkas data yang dapat diakses melalui jaringan area lokal dengan protokol TCP/IP. Penggunaan Raspberry Pi dalam penelitian ini sebagai NAS server. Karena Raspberry Pi tidak membutuhkan lisensi dan resource hardware yang tinggi. Tahapan dalam pembangunan NAS server ini dimulai dari tahap perencanaan  perangkat – perangkat yang digunakan, tahap perancangan topologi jaringan infrastruktur WLAN dari NAS server, tahap instalasi dan konfigurasi software yang dibutuhkan untuk NAS server, dan tahap uji coba. Berdasarkan uji coba yang dilakukan pada empat  perangkat yang berbeda  memberikan hasil yang sama pada transfer rate sebuah berkas dan pada android dibutuhkan aplikasi ES File Explorer untuk dapat mengakses NAS server dikarenakan tidak ada aplikasi default untuk mengakses direktori network sharing
IMPLEMENTASI TEKNOLOGI AUGMENTED REALITY PADA PEMBUATAN ORGANOLOGI TUMBUHAN
Authors: Syukriah Fivi , Pranggarani Liuvita
Published: March 2017

Augmented  Reality  (AR)  atau dalam bahasa Indonesia  disebut realitas tertambah  adalah  teknologi  yang  menggabungkan  benda  maya  dua  dimensi ataupun tiga dimensi ke  dalam sebuah lingkungan nyata kemudian memproyeksikan benda-benda maya tersebut dalam waktu  nyata (real-time). Dengan adanya Augmented  Reality, melihat gambar sama seperti melihat aslinya. Penulisan ini membahas mengenai teknologi Augmented Reality yang menyajikan informasi mengenai organologi tumbuhan sebagai alternatif baru dalam penyampaian materi di dalam kelas. Konsep visualisasi 3D yang lebih memperlihatkan objek-objek yang terkait dalam organologi tumbuhan diharapkan dapat meningkatkan fokus dan minat belajar siswa.  Tahapan pembuatan penulisan ini dibagi dalam beberapa tahap, mulai tahap perancangan, dimulai dari gambaran umum, analisis kebutuhan sistem, struktur navigasi, dan perancangan tampilan. Pembuatan obyek tiga dimensi menggunakan perangkat lunak blender. Terdapat tiga objek dalam pembuatan menggunakan blender diantaranya jaringan dalam pada akar, jaringan dalam pada batang, dan jaringan dalam pada daun
APLIKASI SISTEM PENDUKUNG KEPUTUSAN UNTUK PEMILIHAN SISWA TELADAN MENGGUNAKAN METODE TOPSIS
Authors: Agung Halim , Ricky Ricky
Published: March 2017

Kebutuhan sekolah akan aplikasi untuk administrasi sekolah dan dapat memberikan output akan hasil rekomendasi pilihan siswa teladan menjadi hal yang patut dipertimbangkan. Untuk memenuhi kebutuhan tersebut maka dilakukan penelitian yang akan membangun suatu aplikasi yang mencatat data siswa, mencatat data guru, mencatat data mengajar, mencatat data nilai akademik siswa, mencatat nilai kepribadian siswa, serta dapat memberikan output rekomendasi pemilihan siswa teladan berdasarkan data nilai akademis dan nilai kepribadian siswa yang terjadi. Metode yang digunakan dalam membangun sistem pendukung keputusan pemilihan siswa terbaik adalah metode Technique for Others Reference by Similarity to Ideal Solution (TOPSIS). Hasil akhir yang diperoleh dari penelitian ini adalah aplikasi desktop yang dapat membantu proses pemilihan siswa teladan karena aplikasi ini memberikan output rekomendasi perangkingan siswa dari nilai altenatif yang terbesar hingga terkecil melalui metode TOPSIS. Aplikasi sistem pendukung keputusan pemilihan siswa teladan telah sesuai dengan spesifikasi kebutuhan fungsional yang diharapkan, hal tersebut dapat disimpulkan berdasarkan nilai presentase dari skor tanggapan responden yaitu sebesar 85,36%
IMPLEMENTASI SISTEM PAKAR UNTUK DIAGNOSA AWAL PENYAKIT HEPATITIS A,B,C MENGGUNAKAN TOOLS EXPERT SYSTEM BUILDER
Authors: Sari Ratih Titi Komala
Published: March 2017

Penyakit Hepatitis yang sedang mewabah membuat resah masyarakat, untuk mengetahui gejala fisik seseorang terkena penyakit Hepatitis harus segera melakukan pemeriksaan diinstalasi kesehatan terdekat, dimana  memerlukan waktu khusus dan biaya, dengan pembuatan Sistem Pakar untuk diagnosa awal penyakit hepatitis A,B,C dengan menggunakan tools Expert System Builder data primer yang dijadikan acuan untuk melakukan diagnosa awal penyakit hepatitis dibuat secara sistematis diharapkan mampu memudahkan End User yang masih awan terhadap pengetahuan maupun informasi terkait ciri-ciri dari penyakit hepatitis yang mudah menular untuk dapat mengetahui gejalanya diawal, meskipun pada akhirnya penanganan medis sebagai proses utama penyembuhannya dengan keahlian dari dokter dibidangnya. Tools ini dibuat menggunakan Visual Basic dan file extentionnya memiliki tiga tahapan dalam pembangunan sistem pakarnya, Tahap awal untuk mengisikan data primer yang sudah dikumpulkan melalui observasi, Tahap kedua proses loading question, Merupakan Tahap Ketiga yang merupakan tampilan akhir yang dapat digunakan oleh End User untuk mencoba system pakar yang sudah dibuat
PENGEMBANGAN APLIKASI KRIPTOGRAFI FILE DOKUMEN, AUDIO DAN GAMBAR DENGAN ALGORITMA DES
Authors: Irmawati Irmawati
Published: March 2017

Keamanan dan kerahasiaan sebuah data atau informasi dalam komunikasi sangatlah penting. Seringkali data atau informasi yang penting dalam komunikasi dan pertukaran informasi kadang tidak sampai kepada penerima atau tidak hanya diterima oleh penerima tetapi juga oleh pihak lain yang melakukan pembajakan atau penyadapan. Untuk mengatasi masalah tersebut maka diperlukan suatu aplikasi pengamanan data yang dapat mencegah dan mengamankan data-data yang kita miliki dari orang-orang yang tidak berhak mengaksesnya. Salah satunya adalah metode algoritma kriptografi simetris, karena algoritma ini menggunakan kunci yang sama pada saat melakukan proses enkripsi dan dekripsi sehingga data yang kita miliki akan sulit untuk dimengerti maknanya dan untuk proses enkripsi data yang sangat besar akan sangat cepat. Algoritma yang digunakan adalah DES (Data Encryption Standard). Aplikasi yang dibuat mampu mengenkripsi file dokumen, video, gambar dan audio.
Rethinking capital markets reform: a reassessment of Olson problem and regulatory dualism in the German capital markets from a varieties of capitalism perspective
Authors: Ziccardi de Carvalho André
Published: March 2017

Since its proposition by Peter A. Hall and David Soskice the Varieties of Capitalism (VoC) approach has been particularly important to explain the relationship between economic agents and sets of institutional arrangements that, even in regulatory scenarios that Law and Finance’s school would consider “less than optimal”, are able to generate sustainable economic growth. In this context the VoC approach has been consistently challenging the traditional “one fits all” approach towards capital markets reform usually endorsed by institutions such as the World Bank and the International Monetary Fund, as well as by many scholars and capital markets regulators associated with La Porta’s Law and Finance School. As any theoretical framework, however, the VoC approach also faces its own challenges and still lacks the scientific maturity achieved by the Law and Finance School. Consequently a conciliation between the relational view of the firm proposed by the VoC approach and the overview of corporate governance practices throughout the world presented by the Law and Finance School would be instrumental to construe a more clear understanding of the competitive advantages generated by certain sets of institutions and, at the same time, more accurately assess impacts of reforms that, even if implemented with the legitimate goal of promoting firms’ transparency and higher corporate governance standards, may counter-intuitively generate unprecedented corporate and capital markets crisis. By analyzing two concepts proposed by Ronald J. Gilson, Henry Hansmann and Mariana Pargendler that have an apparent fundamental link to La Porta’s school of Law and Finance (i.e. Olson Problem and Regulatory Dualism) through a varieties of capitalism approach, this study aims at rethinking the traditional “one fits all” approach towards capital markets reform and taking a further step in the direction of conciliating the VoC approach with La Porta’s Law and Finance School. The analysis proposed in this article considers corporate and capital markets reforms in Germany between 1950 and 1997 (the year of creation of the Neuer Market) and also takes into consideration underlying economic factors of the German market economy, which ultimately contributed to the collapse of the Neuer Markt on late 2001.
Socio-psychological factors influencing continuance intention of participants using online social networks to buy
Authors: Assensoh-Kodua Akwesi
Published: March 2017

The purpose of this study is to investigate the influence of perceived trust (PT), social norm (SN), user satisfaction (US) and perceived behavioural control (PBC) from the perspective of online social networks (OSNs) and how these factors influence continuance intention of OSN particpants who have ever been influenced to buy on this platform to continue buying from OSNs. Online survey was used to collect data from people who have ever used OSNs to buy, at least once. The WarpPLS 4.0 was used to analyse measurement and structural models resulting in significant evidence in support of PT, SN and US as predictors of OSN continuance intention, different from the traditional web-based transactions. For instance, trust in OSN is revealled to be based mainly on the degree of the social relations that users have with their vendors because they are members on the network, on top of their experiences of Web service use. US were influenced by PBC, while US also influenced SN and PT with PT exhibiting a strong relationship with SN. These results have practical implications for individuals desiring to engage in commercial activities on OSNs.
INFLUENCE STRATEGY LEARNING BASED PROBLEMS WITH THE CONVENTIONAL LEARNING TO STUDENT LEARNING OUTCOMES
Authors: Tarigan Ratelit
Published: March 2017

This study aims to determine the differences in learning outcomes of students who use learning strategies based on problems with the conventional instructional strategies in the subject matter and measuring student learning activities when using learning strategies based on problems with conventional learning. The study was quasi-experimental. The population is all class X Semester Gasal SMA Swasta Martadinata consisting of 9 classes. Sampling was done by cluster random sampling by taking 2 classes of 9th grade classes were randomly ie X-7 as the experimental class and numbered 34, the class X-6 as a control class numbered 35 people. The results showed the average value of the experimental class pretest 32.20 with a standard deviation of 12.40 and a control class 31.40 with a standard deviation of 10.90. After completion of learning is given, the value of the average post-test on the experimental class of 76.50 with a standard deviation of 9.20 and a control class is 69.00 with a standard deviation of 9.10. T-test analysis results of the two parties obtained tcount = 3.42, while for ttable = 1.67 so that tcount > ttable. This means that Ha is accepted and Ho is rejected, or is there a significant difference between the learning outcomes of students who use learning strategies based on problems with student learning outcomes using conventional learning.
PENGEMBANGAN PERANGKAT PEMBELAJARAN BERBASIS MASALAH UNTUK PENINGKATAN CAPAIAN KOMPETENSI FISIKA UMUM II MAHASISWA PRODI PENDIDIKAN FISIKA FMIPA UNIVERSITAS NEGERI MEDAN
Authors: Sinuraya Jurubahasa , Simatupang Sehat , Wahyuni Ida
Published: March 2017

Tujuan utama penelitian ini adalah untuk menghasilkan lembarkegiatan mahasiswa berbasis masalah (LKMBM) Fisika Umum II. Penelitian ini termasuk jenis penelitian R & D, namun untuk menghasilkan perangkat pembelajaran LKMBM digunakan model disain Dick dan Carey. Struktur isi LKMBM Fisika Umum II ini merupakan implementasi dari konsep pembelajaran berbasis masalah, dan konsep strategi pemecahan masalah. Pelaksanaan penelitian ini dibagi atas tiga tahapan yaitu tahap perencanaan, pengembangan, dan evaluasi formatif. Pelaksananaan evaluasi formatif dilaksanakan melalui tiga tahapan, yaitu: uji validasi oleh 3 orang reviewer, uji coba satu satu melibatkan 3 orang mahasiswa, uji coba kelompok kecil melibatkan 15 orang mahasiswa. Berdasarkan hasil analisis data dan pembahasan, hasil penelitian ini adalah: (1) seperangkat lembar kegiatan mahasiswa berbasis masalah (LKMBM) Fisika Umum II yang ditata dalam 10 komponen, yaitu: (a) judul kegiatan, (b) tujuan pembelajaran, (c) permasalahan, (d) hipotesis, (e) pengumpulan data, (f) pembahasan, (g) simpulan, (h) daftar pustaka, (i) lampiran, dan (j) tes kompetensi; 2) hasil uji coba LKMBM beserta perangkat perangkat pendukungnya dengan melibatkan para ahli dan mahasiswa sebagai pengguna LKMBM, secara keseluruhan sudah memberikan penilaian yang baik, layak digunakan dalam perbaikan pembelajaran fisika umum.
THE EFFECTS OF COOPERATIVE LEARNING MODEL GROUP INVESTIGATION AND MOTIVATION TOWARD PHYSICS LEARNING RESULTS MAN TANJUNGBALAI
Authors: Aristi Amalia Febri
Published: March 2017

This study aimed to determine: (1) Is there a difference in student's learning outcomes with the application of learning models Investigation Group and Direct Instruction teaching model. (2) Is there a difference in students' motivation with the application of learning models Investigation Group and Direct Instruction teaching model, (3) Is there an interaction between learning models Investigation Group and Direct Instruction to improve students' motivation in learning outcomes Physics. This research is a quasi experimental. The study population was a student of class XII Tanjung Balai MAN. Random sample selection is done by randomizing the class. The instrument used consisted of: (1) achievement test (2) students' motivation questionnaire. The tests are used to obtain the data is shaped essay. The data in this study were analyzed using ANOVA analysis of two paths. The results showed that: (1) there were differences in learning outcomes between students who used the physics model of Group Investigation learning compared with students who used the Direct Instruction teaching model. (2) There was a difference in student's learning outcomes that had a low learning motivation and high motivation to learn both in the classroom and in the classroom Investigation Group Direct Instruction. (3) There was interaction between learning models Instruction Direct Group Investigation and motivation to learn in improving learning outcomes Physics.
THE EFFECT OF INQUIRY TRAINING LEARNING MODEL AND THE LOGICAL THINKING ABILITY ON SCIENCE PROCESS SKILL OF STUDENTS
Authors: Aminah Siti , . Derlina
Published: March 2017

The purpose of this research was to analyze science process skill of students taught by training inquiry learning model better than taught by conventional learning, science process skill of students who have the  logical thinking ability above the average better than students who have the logical thinking ability below the average and analyze interaction between learning model and the logical thinking ability of students in influencing the science process skill of students. The research type was quasi experiment. The population was students Class X SMA Negeri 1 Tambangan Kabupaten Mandailing Natal. The cluster random class technique was used in choosing the research sample. The instruments were consists of the test of science process skill and the test of logical thinking ability of students. The used test to obtain the data was essay test. The data in this research was analyzed by using the two ways ANAVA analysis. The research result showed that science process skill of students taught by training inquiry learning model was better than students taught by conventional learning, science process skill of students who have the logical thinking ability above the average was better than students who have the logical thinking ability below the average, and there was interaction between learning model and logical thinking ability of students in influencing the science process skill of students.
EFFECT OF PROBLEM BASED LEARNING (PBL) MODEL ON STUDENT LEARNING OUTCOMES IN GEOMETRIC OPTICS SUBMATTER
Authors: Panggabean Rani Deliana , Simamora Pintor
Published: March 2017

The study was aimed to determine the effect of Problem Based Learning (PBL) model towards student outcomes and learning activity in optica Geometric material. The type of this research was quasy experiment. The population of this research was all of the students class X SMA Negeri 5 Medan A.Y 2014/2015 which was consist of 5 classes. X MIA 5 was choosen as experimental group and X MIA 3 as Control group by using cluster random sampling. The Instrument used was learning outcomes and student’ activity observation sheet. Based on the hypothesis of the average value, pretest shows that both of the class had the same early abilities. After the treatment, found that the average value of post-test in experimental class by using problem-based learning was 76,34 and control class by using conventional learning was 72,56. The result of test showed that data normally distribution and homegeneous. Then, was made a hypothesis experiment that giving t count (1,83)> t table(1,67), so Ha was accepted. Later, from the observation data showed that the students learning activity in experimental group was belong to the active category. Finally, it could be concluded that there was an effect of Problem based learning model towards the learning outcames and learning activity in optical geometric material.
DEVELOPMENT OF SCIENCE PROCESS SKILLS STUDENTS WITH PROJECT BASED LEARNING MODEL- BASED TRAINING IN LEARNING PHYSICS
Authors: Malawati Ratna , . Sahyar
Published: March 2017

This study aims to improve the physics Science Process Skills Students on cognitive and psychomotor aspects by using model based Project Based Learning training.The object of this study is the Project Based Learning model used in the learning process of Computationa Physics.The method used is classroom action research through two learning cycles, each cycle consisting of the stages of planning, implementation, observation and reflection. In the first cycle of treatment with their emphasis given training in the first phase up to third in the model Project Based Learning, while the second cycle is given additional treatment with emphasis discussion is collaboration in achieving the best results for each group of products. The results of data analysis showed increased ability to think Students on cognitive and Science Process Skills in the psychomotor.
Small oscillations of an ideal liquid contained in a vessel closed by an elastic circular plate, in uniform rotation
Authors: Essaouini Hilal , El Bakkali , Capodanno Pierre
Published: March 2017

The problem of the small oscillations of an ideal liquid contained in a
vessel in uniform rotation has been studied by Kopachevskii and Krein in the
case of an entirely rigid vessel [3]. We propose here, a generalization of
this model by considering the case of a vessel closed by an elastic circular
plate. In this context, the linearized equations of motion of the system
plateliquid are derived. Functional analysis is used to obtain a variational
equation of the small amplitude vibrations of the coupled system around its
equilibrium position, and then two operatorial equations in a suitable
Hilbert space are presented and analyzed. We show that the spectrum of the
system is real and consists of a countable set of eigenvalues and an
essential continuous spectrum filling an interval. Finally the existence and
uniqueness theorem for the solution of the associated evolution problem is
proved by means the semigroups theory.
Técnicas aceleradas para evaluar la susceptibilidad a corrosión de aceros embebidos en morteros con adiciones minerales expuestos a cloruros
Authors: Peralta Muñoz Einner , Aguirre Ana María , Mejía de Gutiérrez Ruby
Published: March 2017

Este artículo estudia el comportamiento a la corrosión de morteros reforzados de cemento portland, sin adiciones y con adiciones de metacaolín (MK) y humo de sílice (SF), en presencia de cloruros. La proporción de la adición utilizada en las mezclas fue del 10% en peso como reemplazo del cemento. Se prepararon prototipos sin y con acero de refuerzo. En los primeros se determinó la resistencia a la compresión, absorción, porosidad, y permeabilidad a los cloruros. Las probetas de mortero reforzado se expusieron a cloruros (NaCl 3,5%) y se aplicaron dos técnicas aceleradas de corrosión: ciclos de humectación-secado y voltaje impreso; en ambos casos se utilizó como ambiente de referencia agua potable. El avance del proceso de corrosión en el acero se evaluó mediante la técnica electroquímica de resistencia a la polarización lineal (LPR). Los resultados mostraron que tanto a 28 como a 90 días de curado, las adiciones aumentan la resistencia a la compresión del mortero y contribuyen positivamente a reducir la susceptibilidad del material cementicio a la permeabilidad de cloruros. De las adiciones evaluadas, se destaca el desempeño mecánico de la mezcla con 10% de MK, representado en un incremento del 51,9% respecto a cemento Portland ordinario (OPC). Los coeficientes de absorción capilar de los morteros adicionados fueron hasta un 31% menores que los correspondientes de OPC, lo cual coincide con la reducida permeabilidad a cloruros (≤ 1000 coulombios) evaluada con base en la Norma ASTM C1202. Respecto a los resultados de corrosión se aprecia la misma tendencia de comportamiento en las mezclas, independientemente de la técnica acelerada utilizada. El mejor desempeño corresponde a la mezcla que contiene MK, seguido de SF y OPC. Cabe anotar, que la corriente de corrosión en los prototipos OPC es reducida hasta en un 90% al incorporar MK. De las técnicas aceleradas empleadas en el presente estudio se sugiere utilizar la de voltaje impreso debido al corto tiempo de obtención de los resultados.
Adherencia y biocompatibilidad in vitro de recubrimientos de fosfato de calcio-titanio de calcio obtenidos por magnetrón sputtering para aplicaciones ortopédicas
Authors: Esguerra Arce Johanna , Esguerra Arce Adriana , Aguilar Castro Yesid
Published: March 2017

La hidroxiapatita se ha usado como recubrimientos en vástagos de prótesis de cadera por muchos años. Sin embargo, se ha observado que estos recubrimientos se desprenden llevando a la pérdida de la prótesis, debido a que sus propiedades mecánicas no cumplen los requerimientos de la aplicación. Ya que el titanato de calcio se ha propuesto como recubrimiento para aplicaciones biomédicas, por la biocompatibilidad y osteoconductividad mostrada en ensayos in vitro, en este trabajo se midió el efecto de agregar titanato de calcio a recubrimientos de fosfatos de calcio, obtenidos mediantes magnetrón sputtering, en su adherencia y módulo elástico, los cuales se evaluaron mediante ensayo de rayado según norma ASTM C1624-05 y nanoindentación, de acuerdo a la norma ASTM E2546-07, respectivamente. La biocompatibilidad in vitro de los recubrimientos se evaluó mediante ensayos de genotoxicidad y hemólisis, según norma ASTM F748-06. El recubrimiento de 100% fosfato de calcio (CP) estuvo compuesto de una mezcla de fosfato tricálico y tetracálcico, al cual se le adicionó titanato de calcio (TC), mediante modificación de un blanco de Ca10(PO4)6(OH)2-2xOx□x, en porcentajes de 25, 50 y 75 en volumen. Para efectos comparativos, también se obtuvieron recubrimientos de 100% TC. Se encontró que la adherencia se incrementó al adicionar 25% de un material en el otro, y que fue máxima en el recubrimientos 50%-50%. Además, se encontró que los recubrimientos son no genotóxicos y , a lo sumo, levemente hemolíticos.
Recent Literature on Dance and Identity
Authors: Cleave Peter
Published: March 2017

Cleave's article dicusses recent literature on dance and identity
Book Review - Native diasporas
Authors: Moon Paul
Published: March 2017

Book Review of Smithers & Newman (eds) Native diasporas:  Indigenous identities and settler colonialism in the Americas.
Geopolitical storymaking about Tonga and Fiji: How media fooled people to believe Ma'afu wanted Lau
Authors: Brown Pulu Teena
Published: March 2017

Just when Tongan Democratic Party leader ‘Akilisi Pohiva stumped the public by saying he admired Fiji’s Prime Minister Frank Bainimarama because “he has been able to make things happen and take development to the people,” the Government of Tonga’s Minister for Lands, Lord Ma’afu, came right out of the blue and trumped him (Tonga Daily News, 2014a, 2014b).  Ma’afu topped Pohiva at causing public bamboozlement.

By this, Pohiva was the progenitor of Tonga’s thirty year old pro-democracy movement.  Why would he over romanticise about the former military commodore Frank Bainimarama, the hard-line originator of Fiji’s third coup to take place in a period of twenty eight years?  Pohiva’s swinging politics from democracy in Tonga to an overthrow of democracy in Fiji baffled readers (Naidu, 2014; Graue, 2014).  But Ma’afu took centre stage as the show stopper.

Momentarily, people were gobsmacked and did not know what to make of him.  Was Tonga’s Minister for Lands and Survey who was a senior noble in the Tu’ivakano cabinet courting mischief or dead serious?  Fiji’s permanent secretary for foreign affairs Amena Yauvoli was certain, we “would just have to wait for the Tongan government’s proposal” (Tonga Daily News, 2014a).  But as Tongan journalist Kalafi Moala put it, “they will be waiting for a very long time” on that geopolitical front (Moala, 2014).

This essay explores the geopolitical storymaking about Tonga and Fiji instigated by Tonga Daily News publishing online that Lord Ma’afu had said, “In good faith I will propose to the Minister of Foreign Affairs in Fiji that they can have Minerva Reef and we get Lau in return” (Tonga Daily News, 2014a).  The very thought of drawing up a new map instantly ignited outrage from Fijian readers.  How then, might Tonga and Fiji’s argument over ownership of the Minerva Reefs play out this time around?  Could the region’s geopolitical atlas ever be imagined differently when its cartography was permanently cemented to the era of Western European colonial empire?  When the media fooled people to believe Lord Ma’afu wanted the Lau Islands for the Minerva Reefs, what did this signal about how news sites can manoeuver shock advertising and manipulate what politicians say to up their ratings?
New Zealand's climate refugee debate grows louder
Authors: Brown Pulu Teena
Published: March 2017

An opinion piece by Dr Teena Brown Pulu
Reinga to Leina: Ghost - Dancing Leylines
Authors: Gray Jack
Published: March 2017

In this essay I evoke ghostly remnants of my choreographic research practices[1] facilitated via a series of global inter-disciplinary collaborations in Hawaii[2] and California[3] bridging Māori cosmologies and epistemological frame works with inter-cultural collectives[4]. Reconstructing diary, email and interview material[5] offers a unique creative insight into contemporary Maori performing art practices, re-experiencing the presentness of time, as intimately informed by an erased other, where the former recipient now becomes the medium, the ghost reader.  This essay mirrors the creative processes, tracing moments, already lived, to dance the intangible spirit across leylines of transitional space[6].

[1]     Cultural interventions within community spaces of exchange such as public singing lessons, group visits to sites, performative explorations, community sleepovers.

[2]     Work was undertaken at The Bernice Pauahi Bishop Museum during a seven week artist residency in 2013

[3]     Work was undertaken as a guest choreographer in residence at University of California Berkeley for the Berkeley Dance Project in 2014 and as an Assistant Professor at the University of California Riverside during Spring Quarter 2014

[4]     I am a founding member of Atamira Dance Company and was involved in the collaboration of the Whare Tapere by Charles Royal and Louise Potiki Bryant

[5]     I have used my emails as a source material to reflect the nature of fragmentary knowledge and cultural revitalisation, a major part of the Whare Tapere as a research archive

[6]     Local Maori tribes hold various sources of story that relate to Cape Reinga or Rerenga Wairua as a spiritual highway. These leylines are echoed throughout the world, in places I have travelled such as Hawaii and New Mexico.
Towards Māori corporate social responsibility
Authors: McNeill Hinematau
Published: March 2017

This paper explores the potential interface between Māori collectively-owned organisations, and those organisations and businesses that practice corporate social responsibility (CSR). The literature suggests that CRS is good for business; that it is possible to achieve a double bottom line on social and financial performance. These performance outcomes will be of particular interest to Māori collectively-owned organisations charged with growing tribal wealth, as well as delivering better social outcomes to their beneficiaries. Recently, as a result of the Treaty of Waitangi claims processes, Māori tribal organisations have proliferated. These tribal organisations have consequently adopted governance arrangements designed to deliver both commercial and social outcomes. Additionally, they are expected to incorporate Māori culturally specific values that ultimately underpin the governance of the organisation.  Beneficiaries of most Māori collective organisations are members of the tribe that have recognised genealogical links to a founding ancestor. Tribal organisations are consequently becoming increasingly responsible for the financial, social, cultural and environmental wellbeing of the tribe. Furthermore, the management of tribal assets to enhance tribal wellbeing is embedded in the notion of sustainability – specifically inter-generational wealth creation.
‘Mōhiti E’: Empowering (Trans) Indigenous Performance
Authors: Smith Valance
Published: March 2017

How might a collaborative performance staged across indigenous cultures – in this case Māori and Native American – be seen to create a shared wairua that leads to mārama? For this Symposium, Valance Smith (Ngāpuhi/Waikato) will compose a waiata as the starting point for a hoop dance choreographed and performed by Eddie Madril (Pascua Yaqui) from the Sewan American Indian Dance company. Waiata is, at its simplest, song. It is a vessel for a kaupapa, in the lyrics and also in its music, an embodiment of the singer’s mauri that, in the ideal, resonates in the listener. Hoop dancing has many purposes. It describes the complexities of life, expresses many aspects of the scientific nature of the world through the art form, and invokes the meaning behind the cycle of all living things. In bringing together two distinctive performance languages and cultures, we will be looking for common ground, exploring possible synergies and seeking an experience of the metaphysical in the physicality of our song and dance that can be translated back into a deeper understanding of the potential power of (trans) indigenous performance. How might such a shared, cross-cultural performance not only inform the way we think about the particular practices involved, but also challenge our assumptions about what it means, both in theory and in practice, to perform as Māori and as Native American?