bluuebunny/crossref_metadata_2025 huggingface dataset:
MIXED LANGMUIR-BLODGETT FILMS OF CU-3,5-BISTETRABUTYL PHENYLPORPHYRIN,ARACHIDATEACIDAND HEXATRIACONTANE IN ORDINARY ENVIRONMENT: AUV VISIBLE STUDY
Authors: Hadisaputra Saprizal
Published: January 2018

> Abstrak. Telah dilakukan studi terhadap multilapis film Langmuir-Blodgett pada kondisi eksperimen seharihari menggunakan campuran Cu-3,5-bistetra-butil fenilporpirin, asam arakidat dengan dan atau tanpa inisiator,heksatriakantone. Campuran multilapis film (perbandingan molar porpirin : asam arachidic : heksatriakantone, 1,5 : 10, r, dimana r = 0, 0,5) terdiri dari 4, 20 dan 40 lapis berhasil di transfer ke atas kaca preparat sebagai Langmuir Blodgett film dan dilakukan karakterisasi dengan spektroskopi sinar tampak (UV-visible spectroscopy). Luas daerah per molekul porpirin adalah15-21 Ãâ¦2. Campuran pertama (porpirin : asam arakidat) memberikan multilapisyang baik, sedangkan campuran dengan adanya inisiator tidak menghasilkan 20 dan 40 lapisan seperti prediksi. Beberapa kemungkinan penyebab hasil tidak optimum seperti tingkat kebersihan (cleanliness), kondisi isotermaldan kecepatan kompresi saat pembentukan multilapis film akan di bahas.Kata-kata kunci: Langmuir-Blodgett Films, multilapis, Cu-3,5-bistetrabutyl-phenylporphyrinAbstract. The study of mixed Langmuir-Blodgett Films multilayer was conducted in ordinary experiment conditions by using metallo-porphyrin derivative (3,5-bistetrabutyl-phenylporphyrin with Cu as central metal) andarachidate acid with and without trigger molecule, hexatriacontane. We demonstrated that the mixed multilayer which consist of 4, 20 and 40 layers for each mixed solution (molar ratio porphyrin : arachidic acid :hexatriancontane, 1,5 : 10 : r, where r is 0, 0.5) successfully transfers into glass plates as Langmuir-Blodgett Films and characterized the transferred films using UV visible spectroscopy. The area per monolayer porphyrin moleculeis approximately 15-21 Ãâ¦2. The first mixed solution (porhyrin: arachidic acid) produced good multilayer while the second mixed solution (porphyrin : arachidic acid : trigger molecule, hexatriancontane) did not produce 20 and 40layers as it was expected. Some possible problems such as cleanliness, isotherms condition and compression speed of forming multilayer will be discussed.Key words:Langmuir-Blodgett Films, multilayer, Cu-3,5-bistetrabutyl phenylporphyrin
PENGARUH PEMBERIAN BOKASHI TERHADAP PERTUMBUHAN DAN PRODUKSI JAGUNG (Zea mays)
Authors: Raksun Ahmad
Published: January 2018

Abstrak. Penelitian ini telah dilaksanakan di Desa Selebung Ketangga Kabupaten Lombok Timur. Tujuan dilaksanakannya penelitian ini adalah untuk mengetahui: (1) pengaruh pemberian bokashi terhadap pertumbuhan dan produksi jagung, (2) kadar optimum bokashi yang harus diberikanÃÂ  pada lahan pertanian Desa Selebung Ketangga agar tanaman jagung dapat tumbuh dan berproduksi secara optimal. Dalam penelitian ini digunakan rancangan acak lengkapÃÂ  dengan empat ulangan. Perlakuan bokashi terdiri atas 10 level yaitu:ÃÂ  Bo = tampa pemberianÃÂ  bokashi (kontrol), B1 = pemberian 0,2 kg bokashi/10 kg tanah, B2 = pemberian 0,4 kgÃÂ  bokashi/10 kg tanah, B3 = pemberian 0,6 kg bokashi/10 kg tanah, B4 = pemberian 0,8 kg bokashi/10 kg tanah, B5 = pemberian 1,0 kg bokashi /10 kg tanah, B6 = pemberian 1,2 kg bokashi/10 kg tanah, B7 = pemberian 1,4 kg bokashi/10 kg tanah, B8 = pemberian 1,6 kg bokashi/10 kg tanah dan B9 = pemberian 1,8 kg bokashi /10 kg tanah. Data dianalisis menggunakan Anova dan Uji Beda Nyata Terkecil. Hasil penelitian menunjukkan bahwa: (1) pemberian bokashi pada lahan pertanian dapat meningkatkan pertumbuhan dan produksi jagung (2) kadar optimum bokashi yang perlu diberikan pada lahan pertanian Desa Selebung Ketangga agar tanaman jagung dapat tumbuh dan berproduksi secara optimal adalah 0,8 kg bokasi/10 kg tanahKata kunci: bokashi, pertumbuhan, jagungÃÂ Abstract. This research has done in Selebung Ketangga Village East Lombok. The objective of this research are: (1) to identify the effect of the use of bokashi to the growth and production of corn, (2) to identify the optimum extent of bokashi that must be added to the soil ofÃÂ  Selebung Ketangga farm landÃÂ  in oder that corn can grow and product optimally. Complately randomized design with four replicates were used in this research. There are ten treatment to the bokashi, namely: Bo = without bokashi, B1 =ÃÂ  0,2 kg bokashi/10 kg soil, B2 = 0,4 kgÃÂ  bokashi/10 kg soil, B3 = 0,6 kg bokashi/10 kg soil, B4 = 0,8 kg bokashi/10 kg soil, B5 = 1,0 kg bokashi/10 kg soil, B6 = 1,2 kg bokashi/10 kg soil, B7 = 1,4 kg bokashi/10 kg soil, B8 = 1,6 kg bokashi/10 kg soil and B9 = 1,8 kg bokashi/10 kg soil. Data analysis with Anova and least significant differens test (LSD).The result of this research are: (1) the application of bokasi to the farm landÃÂ  can improveÃÂ  the growth and production of corn, (2)ÃÂ  the optimum extent of bokasi that must be given to the soil ofÃÂ  Selebung Ketangga farm landÃÂ  in oder that corn can grow and product optimally is 0,8 kg bokasi/10 kg soil.Keywords: Bokasi, growth, corn
MERCURY ANALYSIS AND CONCENTRATION IN SEAWATER OF SOUTHERN SUMBAWA
Authors: Hadi Surya
Published: January 2018

Abstract. Current concerns over the negative impacts of Hg in the environment have led to the rapid progress of studies in this area. This progress has been directed to obtain analysis techniques that are able to accurately quantify Mercury (Hg) at extremely low concentration in which it frequently occurs. As part of a study on the environmental aspects of deep-sea submarine tailing placement at the Batu Hijau Mine, Sumbawa, this paper discusses recent progress in Hg analytical techniques, followed by the application of several techniques to investigate Hg concentration in seawater in the vicinity of the tailing discharge location. Using cold vapour atomic fluorescence spectrometry, dissolved Hg was found to be at sub-ng/l (ppt) levels. No dissolved Hg signal associated with the tailing discharge was found with concentrations being similar to adjacent coastal waters.ÃÂ Key words: tailing, STP system, Hg, analysis, and marine water
PENGARUH BUBUR BUAH JAMBU METE(Anacardium occidentale L) TERHADAP ANGKA PEROKSIDA MINYAK KELAPA
Authors: Anwar Yunita Arian Sani
Published: January 2018

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh bubur buah jambu mete terhadap angka peroksida minyak kelapa. konsentrasi bubur buah yang digunakan adalah 0, 5, 10 dan 15 % (w/v) dengan variasi lama penyimpanan sebesar 0, 10, 20, 30 dan 40 hari. Hasil penelitian menunjukkan bahwa penambahan bubur buah jambu mete mampu menurunkan angka peroksida minyak kelapa secara nyata selama penyimpanan. Penambahan bubur buah jambu mete sebesar 10% memberikan hasil yang lebih baik ditinjau dari penurunan angka peroksida minyak kelapa.ÃÂ Kata kunci: jambu mete, antioksidan, bilangan peroksida, minyak kelapa.ÃÂ Abstract.This study was aimed at knowing the influence of a cashew apple fruit pulp on peroxide value in coconut oil. The concentrations of fruit pulp varied at 0, 5, 10 and 15% with storage period of coconut oil at 0, 10, 20, 30 and 40 days. The results showed that the addition of cashew apple fruit pulp had a significant influence on peroxide value of coconut oil. The lowest peroxide value was yielded at a 10% cashew apple fruit addition.ÃÂ Key words: cashew apple, antioxidant, peroxide value, coconut oil.
PENERAPAN PENDIDIKAN MATEMATIKA REALISTIK UNTUK MEMBANGUN PEMAHAMAN SISWA TENTANG KONSEP PECAHAN
Authors: Azmi Syahrul
Published: January 2018

Abstrak : Tulisan ini bertujuan mendeskripsikan pengimplementasian pendidikan matematika realistik pada pembelajaran materi pecahan di kelas IV SDN 2 Penedagandor yang dapat membangun pemahaman siswa tentangkonsep pecahan. Penelitian ini merupakan penelitian tindakan kelas yang dilaksanakan dalam 2 siklus. Hasil penelitian menunjukkan bahwa pada siklus I ketuntasan belajar yang dicapai siswa adalah 34,6% dengan rata-rata hasil tes 60,2. Pada siklus II, ketuntasan belajar mencapai 88,5% dengan rata-rata hasil tes 79,5. Aktivitas belajar siswa pada siklus I berada pada kategori baik, sedang pada siklus II meningkat pada kategori sangat baik. Sehingga dapat dikatakan bahwa kegiatan pembelajaran berlangsung efektif. Dari hasil penelitian ini dapat disimpulkan bahwa melalui kegiatankegiatan yang sesuai dengan realitas atau pengalaman siswa sehari-hari, siswa dapat membangun sendiri pemahaman mereka tentang konsep pecahan.Kata kunci : matematika realistik, pemahaman, konsep pecahanAbstract : The aim of this paper is to describe the implementation of realistic mathematics education in the learning factions in class IV SDN 2 Penedagandor which can build studentsÃ¢â¬â¢ understanding of the concept of fractions. This research is a classroom action research which is carried out in 2 cycles. The results showed that the learning exhaustiveness in cycle I achieved 34.6% with score average is 60.2, and in cycle II, achieved 88.5% with scoreaverage 79.5. Student learning activities in cycle I is good, while in cycle II is very good. Therefore, it can be said that learning activities is very effectively. The conclusion is that students can build their own understanding of the concept of fractions through activities that correspond to reality or their life experience.Keywords : mathematics realistic, understanding, the concept of fractions
IMPLEMENTASI PENDEKATAN PROBLEM POSING DENGAN SETTING PEMBELAJARAN KOOPERATIF UNTUK MENINGKATKAN HASIL BELAJAR MATAKULIAH METODE NUMERIK
Authors: Subarinah Sri
Published: January 2018

Abstrak: Penelitian ini dilakukan untuk meningkatkan hasil belajar mata kuliah Metode Numerik melalui penerapan problem posing dengan setting pembelajaran kooperatif. Penelitian ini dilakukan dalam 3 siklus pada mahasiswa semester IV program studi Pendidikan Matematika FKIP Universitas Mataram tahun ajaran 2006/2007. Pada penelitian ini problem posing yang diimplementasikan dikombinasikan dengan model kooperatif saat mahasiswa menyusun problem, mencari solusi dan penyajian hasil. Pada akhir siklus ketiga, pembelajaran Metode Numerik yang menerapkan problem posing yang telah terlaksana secara optimal dengan tingkat pencapaian indikator PBM sebesar 92,4%. Hasil ini merupakan indikasi bahwa model pembelajaran problem posing dengan setting kooperatif yang diterapkan pada siklus terakhir dapat dijadikan salah satu model pembelajaran di perguruan tinggi, terutama untuk perkuliahan Metode Numerik.Kata-kata kunci : Problem posing, pembelajaran kooperatif, metode numerikÃÂ Abstract: This study is done to improve learning achievement students for numerical method subject by applying problem posing approach using cooperative learning setting. This research done by three cycles for fourth semester students in Mathematics Education program study FKIP Universitas Mataram 2006/2007. In this research, The students construct problems, solve problems and present the result of discussion in cooperatively. At the last cycle, problem posing model was implemented optimally with 92.4% indicator satisfied. This result indicates that problem posing implemented in the last cycle can be made as one of instruction model in university, especially for numerical method subject.Keywords: problem posing, cooperative learning, numerical method
DAMPAK PENERAPAN PENDEKATAN PEMBELAJARAN KOOPERATIF TIPE LEARNING TOGETHER (LT) YANG DIMODIFIKASI DENGAN BERGANTI PERAN DAN PERAN TETAP TERHADAP HASIL BELAJAR KIMIA ANORGANIK 1
Authors: Siahaan Jeckson
Published: January 2018

Abstrak : Tujuan dari penelitian ini adalah untuk mengetahui perbedaan hasil belajar mahasiswa antara yang diajar dengan pendekatan pembelajaran ceramah dan yang diajar dengan pendekatan pembelajaran kooperatif tipe LTyang dimodifikasi dengan berganti peran dan peran tetap. Penelitian ini dilakukan di Universitas Mataram dengan menerapkan rancangan eksperimen semu. Subjek penelitian adalah mahasiswa Program Studi Kimia, FMIPA, sebagai kelas eksperimen dan mahasiswa Program Studi Pendidikan Kimia, FKIP, sebagai kelas kontrol tahun ajaran 2007/2008. Data penelitian terdiri dari hasil belajar mahasiswa berupa tes hasil belajar dengan validitas isi sebesar 97,8% dan koefisien reliabilitas diukur dengan metode paralel, sebesar 0,81. Hasil-hasil penelitian ini menunjukkan bahwa pendekatan pembelajaran kooperatif tipe LT yang dimodifikasi dengan berganti peran dan peran tetap lebih baik dibanding pendekatan pembelajaran ceramah, dan berganti peran lebih baik dibanding peran tetap.Kata kunci : Pembelajaran kooperatif, berganti peran, peran tetap, hasil belajar.Abstract : The aims of this research are to find out the differences of the results of study of Inorganic Chemistry course between students who teached with convensional learning approach versus cooperative learning type oflearning together approaches modified for exchange and permanent roles. This investigation applied a quasi-experimental design and has conducted at Mataram University. Subjects of this research were students of chemistry study program of faculty of mathematic and science as an experimental group and students of chemistry education study program of faculty of teacher training and education as a control group in the academic year of 2007/2008. The data of this research consist of students! result study generated from essay test with content validity was 97.8% and reliability coefficient measured by parallel method was .81. The results showed that cooperative learning type of learning together approach modified for exchange and permanent roles were better than convensional learning ones, and exchange role was better than permanent one.Keywords : Cooperative learning, learning together, exchange role, permanent role, achievement, perception.
SEISMOGRAF REFRAKSI DENGAN SUMBER GELOMBANG WEIGH DROP
Authors: Zuhdi Muhammad
Published: January 2018

Abstrak : Telah dibuat seimograf refraksi dengan sumber gelombang weigh drop berupa bola besi yang dijatuhkan 2 meter dari landasan. Sumber gelombang ini mampu memberikan sinyal pada geophone hingga jarak 150meter. Prinsip kerja seismograf refraksi adalah mengukur waktu tiba gelombang tercepat (fisrt arrival time) dari sumber menuju geophone. Untuk jarak pendek, gelombang tercepat adalah gelombang langsung, sedangkan untuk jarak selebihnya gelombang tercepat adalah gelombang refraksi. Waktu tiba gelombang tercepat diukur dengan instrumen elektronik dengan ketelitian hingga 0,1 milli sekon. Hasil ujicoba menunjukkan bahwa seismogram mampu mendeteksi perlapisan hingga kedalaman 5 meter dengan jarak horizontal mencapai 150 meter.Kata kunci : Seismograf, refraksi, weigh dropAbstract : Refraction seismograph is have been made with wave source of weigh drop made of iron ball from altitude 2 metre from the ground. Source of this wave can give geophone signal till 150 metre apart. Principal ofrefraction seismograph is to measure first arrival of incoming wave to geophone. For short distance, first arrival wave is direct wave, while for the medium and long distance first arrival wave is refraction wave. Arrival time is measured with electronic instrument with errors till 0,1 millisecond. Result of instrument trial indicate that seismogram can detect some layers till 5 metre deep with horizontal distance till 150 metre.Key words : Seismograph, refraction, weigh drop
JADIKAN DIRI GURU INSPIRATIF MELALUI LESSON STUDY
Authors: Handayani Baiq Sri
Published: January 2018

Abstrak: Sosok guru yang mampu bertahan dalam menghadapi tantangan dan perubahan paradigma pendidikan adalah guru inspiratif. Guru inspiratif merupakan guru yang melahirkan daya tarik dan spirit perubahan terhadap diri siswa serta mampu mendisain pembelajaran yang inspiratif. Kriteria guru inspiratif minimal mempunyai tiga kompetensi yaitu: kompetensi profesional, komptensi sosial dan kompetensi personal. Lesson study (LS) merupakan suatu pembinaan profesi pendidik melalui pengkajian pembelajaran secara kolaboratif dan berkelanjutan berdasarkan prinsip kolegalitas. Mengkaji pembelajaran secara kolaboratif dalam kegiatan LS dapat memberikan makna yang sangat berarti bagi guru dalam meningkatkan kompetensi guru sehingga terbentuk guru inspiratif yang dapat meningkatkan hasil belajar siswa serta memberikan inspirasi bagi sesama guru dan siswa. Tulisan ini merupakan kajian terhadap implementasi lesson study sebagai salah satu cara membentuk guru inspiratif. Dengan harapan bahawa guru termotivasi untuk menjadikan diri mereka guru inspiratif melalui kegiatan lesson study.ÃÂ Kata kunci: Guru Inspiratif, Lesson StudyÃÂ ÃÂ Abstract: A teacher who is able to survive in the face of challenge and change the paradigm of education is inspiring teacher. Inspiring teacher is a teacher who gave birth to the attraction and the spirit of the changes to the student and to be able to design an inspiring learning. Criteria inspiring teacher has a minimum of three competencies: professional competency, social competency and personal competence. Lesson study (LS) is a professional educator development through assessment and ongoing collaborative learning based on the principle of collegiality. Assessing collaborative learning in LS activity can provide a very significant meaning for the teachers to improve the competence of teachers to form the inspiring teacher to improve student learning outcomes and provide inspiration for fellow teachers and students. This paper is a review of the implementation of lesson study as a way to form an inspiring teacher. With the hope that free teachers themselves are motivated to make inspiring teachers through lesson study.ÃÂ Key Words: Inspiring teacher, lesson study
UPAYA MENINGKATKAN PEMAHAMAN MAHASISWA AKAN KONSEP-KONSEP KIMIA DENGAN PENERAPKAN PADUAN METODE DEMONSTRASI DAN METODE KOOPERATIF LT
Authors: Siahaan Jeckson , Muti'ah MutiÃ¢â¬â¢ah , Dwirani S. Baiq Fara
Published: January 2018

Abstrak. Telah dilakukan penelitian tentang efektivitas penerapan metode demonstrasi-kooperatif LT dalam pembelajaran matakuliah Kimia Dasar pada topik stoikhiometri dan kesetimbangan kimia. Tujuan penelitian ini untukÃÂ  menguji keefektifan paduan metode demonstrasi dan pendekatan pembelajaran kooperatif tipe LT dengan pembelajaran konvensional terhadap hasil belajar Kimia Dasar. Metode penelitian yang digunakan adalah eksperimen semu (quasi experiment) dengan menggunakan kelas kontrol (pembelajaran menggunakan metode konvensional) dan kelas eksperimen (menggunakan metode demonstrasi-kooperatif LT). Dari hasil penelitian ini diperoleh bahwa penerapan metode demontrasi-kooperatif tipe learning together (demonstrasi-kooperatif LT) dapat meningkatkan aktivitas yang ditunjukkan oleh terwujudnya persiapan belajar, partisipasi antar individu, partisipasi yang berkualitas, keseriusan, bekerja sama, saling ketergantungan positif, mengutamakan interaksi tatap muka/tidak individualistis, tanggungjawab individu, kemampuan memotivasi kelompok, kemampuan mengambil kesimpulan dari berbagai pendapat dalam kelompoknya. ÃÂ Secara kuantitatif nilai hasil belajar mahasiswa yang diajar dengan metode demonstrasi-kooperatif LT adalah sebesar 72,67 dan metode konvensional sebesar 61,19. Dari hasil uji statistik diperoleh bahwa t-hitung > t-tabel (a =0,05), sehingga Ho ditolak. Kesimpulan yang diperoleh dari penel;itian ini adalahÃÂ  terdapat perbedaan yang signifikan keefektifan antaraÃÂ  metode konvensional dan metode demonstrasi-kooperatif tipe LTÃÂ  dalam meningkatkan kualitas dan hasil belajar Kimia DasarKata kunci: Metode demonstrasi Ã¢â¬â kooperatif tipe learning together, stoikiometri, kesetimbangan kimia
PROSPEK ENZIM TANASE DALAM PENGEMBANGAN INDUSTRI DI INDONESIA
Authors: Anwar Yunita Arian Sani
Published: January 2018

Abstrak: Tanase adalah enzim yang bekerja secara spesifik menguraikan tanin terhidrolisis membentuk asam galat dan glukosa. Enzim ini banyak dimanfaatkan baik di industri makanan maupun obat-obatan. Namun, di Indonesia aplikasi enzim ini belum banyak dilakukan karena harga enzim yang relatif mahal. Indonesia yang kaya akan keanekaragaman hayati memiliki potensi yang besar untuk produksi enzim terutama tanase. Kajian mengenai teknologi produksi enzim diharapkan mampu mengembangkan industri enzim maupun industri lainnya di Indonesia.Kata Kunci: Enzim, Tanin TanaseÃÂ Abstract: Tanase is an enzyme that works specifically outlines tannins and gallic acid hydrolyzed to form glucose. This enzyme is widely used in both the food industry and medicine. However, in Indonesia, the application of this enzyme has not been done because the price is relatively expensive enzyme. Indonesia is rich in biodiversity has great potential for the production of enzymes, especially Tanase. The study of enzyme production technology is expected to develop industrial enzymes and other industries in Indonesia.Key notes: Enzyme, Tannin, Tannase
PENCEMARAN UDARA AKIBAT PENGOLAHAN BATU KAPUR DI DUSUN OPEN DESA MANGKUNG PRAYA BARAT
Authors: Al Idrus Syarifa Wahidah
Published: January 2018

Abstrak: Penelitian ini dilaksanakan di dusun open desa Mangkung pada bulan April 2013 dengan tujuan untuk: (1) mendeskripsikan pencemaran udara di dusun Open desa Mangkung, (2) mengetahui dampak penambangan batu kapur terhadap lingkungan dan masyarakat, (3) mengetahui cara yang tepat mengatasi pencemaran udara di dusun Open desa Mangkung. Berkenaan dengan itu penelitian dirancang sebagai penelitian deskriptif, Data dikumpulkan melalui observasi dan wawancara yang selanjutnya dianalisis dengan menggunakan metode deskriptitif kualitatif. Hasil penelitian menunjukkan bahwa (1) kegiatan penambangan batu kapur di dusun open desa mangkung menyebabkan pencemaran udara berupa pencemaran partikel debu dan gas karbon monoksida (CO), (2) dampak penambangan batu kapur tersebut adalah lingkungan menjadi tercemar dan masyarakat mengalmi ISPA cukup tinggi, (3) beberapa pendekatan yang bisa dilakukan untuk mengatasi pencemaran di dusun Open desa Mangkung adalah pendekatan institusi, pendekatan pelayanan kesehatan, pendekatan social ekonomi dan pendekatan teknologi.Kata kunci: Karakteristik Kegiatan Penambangan, Dampak Lingkungan, Upaya PerbaikanÃÂ Abstract:This research was conducted in Open Mangkung village aimed for: (1) describing the air pollution in Open Mangkung village, (2) knowing the impact of limestone mining to the environment and society, (3) knowing the suitable way to solve the air pollution in Open Mangkung village. Owing to this, this research is designed as descriptive research. The data was collected through observation and interview which was then analyzed using descriptive qualitative method. The result of the research shows that (1) the limestone mining in Open Mangkung village has caused the air pollution in the form of dust particle and carbon monoxide gas (CO), (2) the impact of limestone mining has polluted the environment which evokes the people get RFA (Rhino Faringitis Acute), (3) several approach that may be done to solve the pollution in Open Mangkung are institutional approach, medical service approach, social economic approach and technology approach.Keywords: the characteristic of the mining activity, the environment impact, recovery efforts.
REGIONAL COMPARATIVE APPROACHES ON POPULATION AND MAIN DEMOGRAPHIC PHENOMENA – BACAU COUNTY OF ROMANIA VERSUS THE CENTRAL REGION OF THE REPUBLIC OF MOLDOVA
Authors: Ciomartan Lacramioara Vasilica
Published: January 2018

Knowing the whole population, the role and the place of each person in the reproduction of the population, in the economic and social activity, as well as the correlated analysis on age and sex groups is essential in order to ground economic and social policies. The comparative approach, considering the evolution of the population as well as the main demographic phenomena, aims to assess the demographic situation in Bacau County, Romania, as well as in the Central Region of the Republic of Moldova, over a period of 9 years (2007-2015). In order to quantify the complex demographic situation in the two territorial units for statistics, we took into consideration a relatively small number of indicators, the most relevant ones, which should underline the evolution from a demographic point of view.
SPECIFIC OPERATIONS FOR ACCOUNTS’ HOMOGENIZATION WITH A VIEW TO CONSOLIDATION
Authors: Deju Mihai
Published: January 2018

The preparation of annual consolidated financial statements by group companies represents a relatively new problematic issue for regulating bodies, the world of the academia, as well as for accounting practitioners. The current national and international accounting standards undergo a continuous change and updating to the economic and judicial reality of the business environment which, in turn, goes through a permanent transformation as a result of the globalization of national economies. These novelties raise the necessity of debates organised by accounting specialists with the aim of finding solutions that respect legal regulations related to the preparation of financial statements for consolidation. The present article approaches accounting aspects related to the operation of adjusting individual financial statements that are the object of consolidation.
Bicentric Bipolar Prosthesis in Non-Traumatic Hip Pathologies: Maximum 10 Years Follow Up
Authors: Jha Subash Chandra , Rai Anil Kumar , Shakya Prakash
Published: January 2018

Introduction: Introduction of bipolar prosthesis was basically made for the treatment of fresh fracture neck of femur in elderly, but with advancement in design and techniques its use has been increased to various non-traumatic hip pathologies.Objective: To assess clinical and radiological outcome of BHU bicentric bipolar hip prosthesis in treatment of non-traumatic hip pathology.Methodology: This longitudinal study was done in 30 cases of various hip conditions, during the period of March 2002 to March 2012. All patients had secondary osteoarthritis of hip with abnormal acetabulum following advanced tubercular arthritis, rheumatoid arthritis, ankylosing spondylitis and avascular necrosis of femoral head. Primary bipolar hemi-replacement arthroplasty was done in all the cases using Banaras Hindu University (BHU) bicentric bipolar hip prosthesis. Each patient was assessed radiologically for movement and fraction of it occurring at various components of prosthesis and clinically for functional outcome using modified Harris hip score for the maximum of 10 years.Results: There were 17 males and 13 females (n=30), aged between 31-60 years. Three and half years following surgery, (n=12) 100% patients were able to squat and sit crossed legged. At four and half years follow-up, (n=7) 100% patient had excellent result when assessed by modified Harris hip score. Radiologically, by the end of 10 years (n=1) all the movements of hip occurred at inner bearing while the outer bearing was fixed to acetabulum.Conclusion: This intermediate term follow-up study suggests that the use of BHU bicentric bipolar hip prosthesis for bipolar hemireplacement is associated with be
Prevalence and Associated Factors of Undernutrition among Under-Five Children of Bharatpur Municipality of Chitwan District, Nepal
Authors: Upadhyay Pokhrel Ava , Parajuli Surya Bahadur , Acharya Alok
Published: January 2018

Introduction: Under-nutrition during childhood, a major public health problem of Nepal, can have everlasting consequences. It is one of the primary causes of ill health and premature deaths in many developing countries like Nepal.Objective: The objective of the study was to assess the prevalence and associated factors of under-nutrition among under-five children of Bharatpur municipality of Chitwan district of central Nepal.Methodology: A cross sectional study was conducted in Bharatpur municipality of Chitwan district. Anthropometric measurement of children and information regarding nutrition along with different exposures were taken from 402 randomly sampled mothers. WHO criteria was used to compare with the calculated Z-score using Anthro V3.2.2 software. Informed consent was taken from concerned authority. Descriptive statistics were calculated and binary logistic regressions was used to determine the influence of selected variables for underweight.Results: Majority of the respondents were from relatively advantaged groups and house makers. Almost 54% of the children were boys and the greatest share of children was of age group 25-36 months. Almost one in 10 children of Bharatpur had lower weight-for-height score (wasted). Likewise, more than one quarter (26.4%) were stunted and another 13.4% were under-weight. Families with less than four family members were less likely to have under-weight children and those who had more than two children had more chance of having under-weight children (P=0.002). Children having diarrheal episodes within 2 weeks period of study had higher odds of being malnourished.Conclusion: The study shows that female children have higher risks of being malnourished. Higher prevalence of underweight was seen with the increasing age of children. The size of family also matters the nutrition status of children. It is recommended that Ministry of Health needs to have more attention for the necessary intervention addressing the combined exposures factors for underweight. Birat Journal of Health SciencesVol.2/No.3/Issue 4/Sep- Dec 2017, Page: 266-272
Laparoscopic Management of Ovarian Dermoid Cysts in Birat Medical College, Teaching Hospital
Authors: Neupane Bhanubhakta , Karki Gyanendra Man Singh , Dahal Prerana , Karki Sambhu Bahadur
Published: January 2018

Introduction: Spillage of contents of the dermoid cyst during surgery may cause chemical peritonitis and spillage is more likely to occur during laparoscopic surgery for the removal of the ovarian dermoid cyst. Thorough washing of peritoneal cavity with physiological solution greatly reduces the incidence of chemical peritonitis.Objective: To study the outcome of laparoscopic treatment of ovarian dermoid cysts.Methodology: This is a hospital based cross-sectional study conducted at Birat Medical College and Teaching Hospital from 2012 April to 2016 April. All patients being operated by laparoscopy for ovarian dermoid cysts were enrolled in the study. Occurrence of spillage of dermoid contents during surgery and development of symptoms and signs of chemical peritonitis in postoperative period were main outcome measures. The collected data was entered in Microsoft Excel and analyzed by SPSS software version17.Results: Eighty nine ovarian dermoid cysts from 82 patients were managed by laparoscopy. Among 89 cysts, 54(60.76%) cysts were removed by laparoscopic cystectomy, 21(23.59%) cysts were removed by laparoscopic salpingo-ophorectomy and 14(15.73%) cysts were removed by salpingo-ophorectomy with hysterectomy. Spillage of dermoid content occurred in 50 (56.17%) cysts removal. There was no conversion to laparotomy and no case of chemical peritonitis.Conclusion: The risk of chemical peritonitis is negligible with spillage of dermoid content during laparoscopic procedure when peritoneal cavity is washed thoroughly. Birat Journal of Health SciencesVol.2/No.3/Issue 4/Sep- Dec 2017, Page: 273-276
Vandalising Aratiatia and Beautifying Benmore: A Tale of Two Landscapes
Authors: Whittle Joanne Kathrine
Published: January 2018

The paper contrasts public responses to landscape change associated with the construction of two hydro-electric power stations in New Zealand during the 1950s and 1960s: at Aratiatia Rapids, a scenic tourist attraction on the Waikato River in the North Island; and at Benmore among the remote South Island tussock high country. The tale of these two landscapes shows that two similar developments were received very differently by the public depending on their locations. There was widespread opposition to what was conceived of as the destruction of valuable scenery at Aratiatia but, in direct contrast, development at Benmore was viewed largely positively, as the transformation of barren land into picturesque scenery. Contrasting the public reception of contiguous developments in different places highlights the fact that attitudes towards technology and the environment are contingent on place as well as time and shows that, in mid-twentieth century New Zealand, responses toward hydro-electric development developed in relation to the idiosyncrasies of specific projects. This paper also demonstrates that communities were not just passive consumers of electricity, but were actively engaged in the interpretation and formation of these landscapes. Their ideas about the appropriate locations for, and appearance of, electric power generation had considerable impacts on the way both these places look today.
Advanced Data Acquisition System for Wind Energy Applications
Authors: Nagy Andras , Jahn Ingo
Published: January 2018

Today renewable energies, particularly wind energy are important to meet 24 hour energy demands while keeping car­bon emissions low. As the cost of renewable energies are high, improving their efficiency is a key factor to reduce energy prices. High quality experimental data is essential to develop deeper understanding of the existing systems and to improve their efficiency.This paper introduces an unmanned airborne data acquisition system that can measure properties around wind-turbines to pro­vide new insight into aerodynamic performance and loss mech­anisms and to provide validation data for wind-turbine design methods. The described system is a flexible and portable platform for collecting high quality data from existing full-scale wind-tur­bine installations. This allows experiments to be conducted with­out scaling and with real-world boundary conditions.The system consists of two major parts: the unmanned flying platform (UAV) and the data acquisition system (DAQ). For the UAV a commercially available unit is selected, which has the ability to fly a route autonomously with sufficient preci­sion, the ability to hover, and sufficient load capacity to carry the DAQ system. The DAQ system in contrast, is developed in-house to achieve a high quality data collection capability and to increase flexibility.
Silicon Photonics towards Disaggregation of Resources in Data Centers
Authors: Moralis-Pegios Miltiadis , Terzenidis Nikolaos , Mourgias-Alexandris George , Vyrsokinos Konstantinos
Published: January 2018

In this paper, we demonstrate two subsystems based on Silicon Photonics, towards meeting the network requirements imposed by disaggregation of resources in Data Centers. The first one utilizes a 4 × 4 Silicon photonics switching matrix, employing Mach Zehnder Interferometers (MZIs) with Electro-Optical phase shifters, directly controlled by a high speed Field Programmable Gate Array (FPGA) board for the successful implementation of a Bloom-Filter (BF)-label forwarding scheme. The FPGA is responsible for extracting the BF-label from the incoming optical packets, carrying out the BF-based forwarding function, determining the appropriate switching state and generating the corresponding control signals towards conveying incoming packets to the desired output port of the matrix. The BF-label based packet forwarding scheme allows rapid reconfiguration of the optical switch, while at the same time reduces the memory requirements of the node’s lookup table. Successful operation for 10 Gb/s data packets is reported for a 1 × 4 routing layout. The second subsystem utilizes three integrated spiral waveguides, with record-high 2.6 ns/mm2, delay versus footprint efficiency, along with two Semiconductor Optical Amplifier Mach-Zehnder Interferometer (SOA-MZI) wavelength converters, to construct a variable optical buffer and a Time Slot Interchange module. Error-free on-chip variable delay buffering from 6.5 ns up to 17.2 ns and successful timeslot interchanging for 10 Gb/s optical packets are presented.
Calcium Extraction from Blast-Furnace-Slag-Based Mortars in Sulphate Bacterial Medium
Authors: Estokova Adriana , Smolakova Michaela , Luptakova Alena
Published: January 2018

Wastewater structures, such as treatment plants or sewers can be easily affected by bio-corrosion influenced by microorganisms living in waste water. The activity of these microbes results in deterioration and can cause the reduction in structural performance of such structures. In order to improve the durability of mortar and concrete, different admixtures are being used and the best impact is observed in cement based materials combined with blast furnace slag. In this study, mortar samples with blast furnace slag were exposed to bacterial sulphate attack for 90 and 180 days. The leaching of calcium ions from the cement matrix and equivalent damaged depths of studied mortar samples were evaluated. The results showed more significant leaching of samples placed in bacterial environment, compared to the samples placed in non-bacterial environment. Similarly, the equivalent damaged depths of mortars were much higher for the bacteria-influenced samples. The slag-based cement mortars did not clearly show improved resistance in bacterial medium in terms of calcium leaching.
Performance Evaluation of Discrete Event Systems with GPenSIM
Authors: Davidrajuh Reggie , Skolud Bozena , Krenczyk Damian
Published: January 2018

Petri nets are a useful tool for the modeling and performance evaluation of discrete event systems. Literature reveals that the Petri Net models of real-world discrete event systems are most frequently event graphs (a subclass of Petri nets). Literature also reveals that there are some simple methods for the performance evaluation of event graphs. The general-purpose Petri Net simulator (GPenSIM) is a new simulator that runs on the MATLAB platform. GPenSIM provides a Petri net language, with which Petri net classes and extensions can be developed. GPenSIM also provides functions for performance analysis. Since real-world discrete event systems usually possess a large number of resources, the Petri net models of these systems tend to become huge. Activity-Oriented Petri Nets (AOPN) is an approach that reduces the size of the Petri nets. In addition to the simulator functions, GPenSIM also realizes the AOPN approach on the MATLAB platform. Thus, AOPN is an integral part of GPenSIM. As a running example, a flexible manufacturing system is firstly modeled as an event graph, and then the size of the model is reduced with the AOPN approach. The advantages of GPenSIM and AOPN are discussed in this paper.
Supercapacitors in Tandem with Batteries to Prolong the Range of UGV Systems
Authors: Shah Namin , Czarkowski Dariusz
Published: January 2018

The purpose of this study was to explore a novel approach to power hybridization in relation to its effectiveness in an unmanned ground vehicle (UGV). This hybridization method is modeled after the power distribution methods found in living organisms, which utilize glycogen stores and adipose tissue to optimize power and energy density strengths and weaknesses. A UGV rover was constructed with an appropriate distribution of power storage elements creating separate power buffers. The primary buffer consisted of a 10 W solar panel array and a 600 F, 5.4 V supercapacitor bank, and the secondary buffer consisted of a 3.7 V 6 Ah lithium-ion battery pack. The primary buffer provided virtually limitless charge cycles with a superior power density juxtaposed with a secondary buffer that provided superior energy density and volumetric versatility. The design of this rover is presented in this paper; it was tested under manual and autonomous modes. The rover was found to be capable of effectively operating solely on the primary power buffer in high to low luminous conditions while being able to carry out basic extravehicular activities. The rover could travel roughly 22 km without any input power on a full charge of both buffers, and could smoothly switch between its own power buffers during operation, all while transmitting live first person video (FPV) and network data. The introduction of control algorithms on the onboard microcontroller unit (MCU) was also explored in both manual and autonomous configurations. The latter integrated linear regression to intelligently manage power and locomotion based on sensory data from photoresistors.
Increased Vegetation Greenness Aggravates Water Conflicts during Lasting and Intensifying Drought in the Poyang Lake Watershed, China
Authors: Tang Lin-Ling , Cai Xiao-Bin , Gong Wei-Shu , Lu Jian-Zhong , Chen Xiao-Ling , Lei Qian , Yu Gong-Liang
Published: January 2018

An increase in vegetation greenness can improve ecosystem productivity, but also reduce the water supply, creating the potential for conflicting water demands between ecosystems and humans. This problem has been well-assessed and is most evident in dry environments. However, in humid regions, the potential effects of vegetation greenness on water yields under drought conditions are not well understood. To address this gap, we focused on the Poyang Lake watershed in the humid region of southern China. Based on the Standardized Precipitation Evapotranspiration Index and a satellite-derived leaf area index dataset during the growing seasons of 1984 to 2013, several typical dry growing seasons were selected as the study conditions. An existing Water Supply Stress Index model was modified to investigate how the changes in vegetation greenness affected water yield and to explore potentially conflicting water demands between ecosystems and humans under drought conditions. Our results showed that an increase of 20–80% in vegetation greenness generally resulted in a reduction of 3–27% in water yield under drought conditions. Large reductions in water yield mainly were observed in forested areas due to large increases in forest greenness. Moreover, increased vegetation greenness caused a 2 to 3 times greater reduction in water yield during continuing and intensifying droughts than during a short moderate drought period. Thus, in this study, during continuing and intensifying droughts, increased vegetation greenness can cause or aggravate water conflicts in sub-watersheds with high forest cover and high human water demands. Therefore, given the increasing frequency of extreme climatic events, afforestation with a targeted approach should be implemented as it would provide the most benefits. In addition, selective harvesting in forested areas with high density could be an effective strategy to maintain water supply in humid regions.
Heavy Environmental Pressure in Campania and Other Italian Regions: A Short Review of Available Evidence
Authors: Mazza Alfredo , Piscitelli Prisco , Falco Andrea , Santoro Maria , Colangelo Manuela , Imbriani Giovanni , Idolo Adele , De Donno Antonella , Iannuzzi Leopoldo , Colao Annamaria
Published: January 2018

The area of Naples and Campania region, in Italy, are experiencing the dramatic consequences of diffuse and illegal waste dumping, resulting in possible threats to human health. This area has been referred to as the “Land of Fires” because of the common practice of waste burning. International interest in the Campania “waste emergency” has triggered several epidemiological studies. This article is aimed at highlighting the body of evidence available concerning human and environmental contamination in the Campania region, and considers the possible lack of comparable knowledge about the situation in other areas suffering from high environmental pollution. We analyzed the results of studies addressing environmental pollution and population health in the Campania region, starting from the most recent reviews on this topic, and compared their findings with those concerning other regions. We reviewed 18 studies of epidemiological/cancer surveillance and human or animal biomonitoring. These studies show worrying results, which could be considered comparable to those available for other Italian areas impacted by heavy industrial activities. The release of environmental contaminants associated with waste incineration and waste disposal in landfills poses a risk to public health, as shown by a number of studies (although not conclusively). The current knowledge available for the Campania region is better than that available for other areas which are facing similar problems due to anthropic activities, including illegal waste trafficking. Thus, Naples and Campania could represent a valuable setting to develop general models for studies of environmental and human contamination.
Modeling Unobserved Heterogeneity in Susceptibility to Ambient Benzo[a]pyrene Concentration among Children with Allergic Asthma Using an Unsupervised Learning Algorithm
Authors: Fernández Daniel , Sram Radim , Dostal Miroslav , Pastorkova Anna , Gmuender Hans , Choi Hyunok
Published: January 2018

Current studies of gene × air pollution interaction typically seek to identify unknown heritability of common complex illnesses arising from variability in the host’s susceptibility to environmental pollutants of interest. Accordingly, a single component generalized linear models are often used to model the risk posed by an environmental exposure variable of interest in relation to a priori determined DNA variants. However, reducing the phenotypic heterogeneity may further optimize such approach, primarily represented by the modeled DNA variants. Here, we reduce phenotypic heterogeneity of asthma severity, and also identify single nucleotide polymorphisms (SNP) associated with phenotype subgroups. Specifically, we first apply an unsupervised learning algorithm method and a non-parametric regression to find a biclustering structure of children according to their allergy and asthma severity. We then identify a set of SNPs most closely correlated with each sub-group. We subsequently fit a logistic regression model for each group against the healthy controls using benzo[a]pyrene (B[a]P) as a representative airborne carcinogen. Application of such approach in a case-control data set shows that SNP clustering may help to partly explain heterogeneity in children’s asthma susceptibility in relation to ambient B[a]P concentration with greater efficiency.
Parents’ Perspectives on Family Sexuality Communication from Middle School to High School
Authors: Grossman Jennifer , Jenkins Lisa , Richer Amanda
Published: January 2018

Parents’ conversations with teens about sex and relationships can play a critical role in improving teenage reproductive health by reducing teens’ risky sexual behavior. However, little is known about how teen-parent communication changes from early to middle adolescence and how parents can tailor their communication to address their teens’ changing development and experiences during these periods. In this longitudinal qualitative study, U.S. parents (N = 23) participated in interviews when their teens were in early adolescence, then again when the teens were in middle adolescence. Participants were largely mothers and were from diverse racial/ethnic and educational backgrounds. Thematic analysis was used to assess continuity and change in parents’ perceptions of teen-parent communication. Findings showed that many parents adapted their conversations with their teens about sex and relationships as teens developed. Once teens had entered high school, more parents described feeling comfortable with their conversations. However, parents also more often reported that their teens responded negatively to the communication in high school than they had in middle school. These findings may help parents to anticipate their own as well as their teens’ responses to family conversations about sex at different developmental time points and to strategize how to effectively talk with their teens about sex and relationships to improve their teens’ overall reproductive health.