bluuebunny/crossref_metadata_2025 huggingface dataset:
Calidad educativa en las instituciones de educación superior: evaluación del síndrome de burnout en los profesores / Educational quality in higher education institutions: assessment of burnout syndrome in teachers
Authors: Brito Laredo Janette
Published: April 2018

En la actualidad el rol del profesor universitario juega un papel muy importante en el proceso enseñanza-aprendizaje. Dentro de sus funciones principales se encuentra propiciar un aprendizaje permanente y significativo entre los estudiantes, con la finalidad de formar profesionistas altamente calificados, por lo que el profesorado desempeña una parte fundamental en el logro de la calidad educativa. En este sentido, el objetivo del presente trabajo consistió en realizar un estudio de la salud ocupacional en los docentes de una Institución de Educación Superior (IES) del Estado de Baja California, México. Se evaluó el estrés crónico en el trabajo relacionado con sus exigencias mediante el síndrome de burnout para identificar áreas de oportunidad y buscar el mejoramiento de sus prácticas educativas y formativas.  Este síndrome es tridimensional y está caracterizado por el agotamiento, cinismo y eficiencia profesional. La metodología aplicada fue mediante un estudio de campo con la aplicación del instrumento de medición Maslach-Burnout Inventory General Survey (MBI-GS). Se realizó un estudio con 100 % de la planta de profesores de tiempo completo adscritos a una facultad de la universidad pública, a quienes se les aplicó la prueba para conocer la propensión a padecer el síndrome de burnout. Con base en la escala de evaluación, los resultados muestran niveles medios y altos en las dimensiones de agotamiento (=2.78) y cinismo (=1.46), y bajos en eficiencia profesional (=3.54), por lo que se comprueba la existencia del síndrome en los profesores sujetos de estudio. Se considera de suma importancia identificar el síndrome de burnout en los trabajadores dedicados a la docencia y se recomienda el desarrollo de una propuesta de mejoramiento de condiciones laborales.
The Contribution of Social Conflict with Peers toward Self-Confidence
Authors: Octaviyana Indah , Firman Firman , Daharnis Daharnis
Published: April 2018

Some students still have less self-confidence. Students’ self-confidence is thought to be related to social conflict with peers. The study aims to describe the contribution of social conflict with peers toward self-confidence. This research used quantitative approach with descriptive-correlational method. The population of this research are high school students Pringsewu Lampung, with sample 280 students using propotional stratified random sampling. Data collection using questionnaire with Likertscale model, with instrument reliable: social conflict with peers 0.843 and students' self-confidence 0.878. Data were analyzed using simple regression. The results of the research shows that the social conflict with peers contributed (7.7%) toward students' self-confidence.
Development of Teaching Material for Narrative Writing Using Graphic Organizer Story Map in Elementary School
Authors: Kurnia Ramona , Arief Darnies , Irdamurni Irdamurni
Published: April 2018

Most of materials used in narrative writing are not interested and not related to the writing process (pre-writing, when writing, and post writing). Our goal is to measure the effectiveness, practicality, and validity of the narrative writing material namely Graphic Organizer Story Map. We are doing research and development. We used 4-D model which consists of 4 stages: define, design, develop and disseminate. The validity test is obtained through the learning plan sheet on implementation, and the assessment of teachers and students responses. The effectiveness is obtained from activity, process assessment and result of narrative writing. We conducted an evaluation and obtained the “very valid”, “very simple” and “very effective”. We found the enhancement number of student who meet the passing grade on narrative writing. The teaching material for narrative writing with using Graphical Organizer Story Map is valid, simple and effective to use.
PENERAPAN MODEL PEMBELAJARAN ROPES DAN PENGETAHUAN AWAL TERHADAP HASIL BELAJAR PERKULIAHAN MATEMATIKA DI STIKES PRIMA NUSANTARA
Authors: Rivan_M Yoko Masna , Masnarivan Yeffi
Published: April 2018

This research is based on the low level of mathematics lecture result, which is caused by the learning that is still dominated by the lecturers so that the students are less motivated and bored with the learning activities in the lectures. Lecturers have not been able to encourage students to develop the talents and skills of individual students, and still many students who have not been able to formulate their own hypothesis. learning that is not optimal yet it is necessary efforts to improve learning outcomes math lectures. This study aims to reveal the effect of ROPES learning model and initial knowledge on mathematics learning outcomes in STIKes Prima Nusantara. The research design used was Randomized Group Only Design. The population of this study is all students STIKes Prima Nusantara level I of the academic year 2017-2018. Data were collected through initial knowledge tests and and learning result tests. The results revealed that the results of lectures of students who were taught with ROPES learning model higher than the results of student learning taught by conventional learning model, student learning outcomes that have a high initial knowledge with ROPES learning model higher than the results of learning mathematics students who have a high initial knowledge with conventional learning model, student learning outcomes that have low initial knowledge with ROPES learning model higher than the results of mathematics learning students who have low initial knowledge with conventional learning model and there is no interaction between learning models and knowledge early in influencing the results of college mathematics students STIKes Prima Nusantara.
ANALISIS VALIDITAS BUKU AJAR UNTUK SISTEM PERKULIAHAN E-LEARNING PADA MATA KULIAH KIMIA DASAR DI FKIP UMMY SOLOK
Authors: - Afrahamiryano - , Ariani Dewi
Published: April 2018

E-learning lecture system is a lecture system that has been the talk of the world for several years. With regard to this e-learning process, there will still be teaching materials that are made. Teaching materials in the form of material for one semester published through e-learning media. Each teaching material needs to go through the validation process. So far, teaching materials created by lecturers only to support the lecture process, not many lecturers who validate the teaching materials given to students. The importance of validation of teaching materials is necessary to see the suitability of teaching materials to business / industry needs, so that the teaching materials are appropriate and suitable for use in learning. Therefore, the research is conducted to determine the validity of this resource. The formulation of the problem in this research is how the validity of basic chemistry textbook content for e-learning lecture system in FKIP UMMY Solok? To answer the problem formulation used R & D research method using 4D development model. The content validation of Textbook is done by expert consideration method and for data analysis of expert consideration result, used CVR index developed by Lawshe. Validation of this textbook aims to see the suitability of the content or substance of teaching materials. Triangulation results of expert consideration data obtained information that the validity of Basic Chemistry Basic textbook relevant / viable in terms of content and can be used for e-learning lecture system.
PERBANDINGAN PENINGKATAN KEMAMPUAN PENALARAN MATEMATIS ANTARA PEMBELAJARAN BERBASIS MASALAH DAN PENEMUAN TERBIMBING DITINJAU DARI KEMAMPUAN AWAL MATEMATIS SISWA
Authors: Ario Marfi
Published: April 2018

Mathematical reasoning ability is fundamental aspect in mathematic learning. Efforts to improve the ability of mathematical reasoning necessary. Based on that, this study was conducted to examine improvement of mathematical reasoning ability students who received problem based learning and guided discovery learning in terms of categories Early Mathematical Ability (EMA) students. This study was a quasi experimental research with the pretest-post-tes two treatment design. The population in this study were the students in class XI from one of SMK in Pekanbaru. Samples in this study were 76 students from two classes using purposive sampling technique. Instrument that used in this study was the questions of mathematical reasoning ability test. The findings of this study are: there is a difference in the improvement of mathematical reasoning ability among students who get problem based learning and students who gain guided discovery learning on medium KAM category students. In high and low KAM category students, there is no significant difference in the improvement of mathematical reasoning abilities between students who received problem based learning and students who received guided discovery learning.
PENINGKATAN HASIL BELAJAR PESERTA DIDIK DENGAN MENGGUNAKAN MODEL PYTHAGORAS PADA MATA PELAJARAN MATEMATIKA DI KELAS VIII.1 SMP NEGERI 4 BASO
Authors: Usyeldi Usyeldi
Published: April 2018

Mathematics instructional in Junior High School (SMPN) 4 Baso, Agam conducted through lecture method. The student-centered learning has not been performed at instructional. Most of students (60%) have not been mastered of mathematics. One of the efforts to improve learning outcomes is to use the Pythagorean model as a learning media. This research aims to improve the learning outcomes of students used the Pythagorean model of the Pythagorean Theorem. The research used classroom action research design. The research subjects were VIII.1 grade students of SMPN 4 Baso, Agam in the 2015/2016 academic year of 20 students. Data collection instrument were tests and observation sheet. The test was used to know the learning outcomes of students in each cycle. Observation sheet was used to determine the instructional process at each cycle. Data were analyzed with descriptive statistics. The results showed that: The average score of the students learning outcome in the first cycle of 66.5, the second cycle of 75.5 so that was increasing in the average score of the first cycle to the second cycle. Percentage of mastery learning of students in the first cycle of 60%, in the second cycle of 95%. Thus there was an improved of mastery learning of students from the first cycle to the second cycle. It can be concluded that the mathematics instructional by using Pythagoras models can improve to learning outcomes of students.
PENGEMBANGAN MODUL PEMBELAJARAN MATA KULIAH TEKNOLOGI PANGAN (TP)
Authors: Yensasnidar Yensasnidar
Published: April 2018

This research is motivated by several problems which are identified in the subject of Food Technology, namely the existing module has not facilitated the students to study individully, it has not been suitable to the theories of module development, the students are not independent and active in learning process, it is necessary to develop the learning module of Food Technology which is suitable to the standard of competency. The purpose of this research is to produce the valid, practical and effective learning module in order to be used in learning process.This reaserch was carried out by using research method and development of Research and Development (R & D) with four-D development model (4D). the steps of 4D development are Define (definition), Design (design), Develop (development) and Disseminate (Dissemination). The results of this development research are as follows; (1) learning module of food technology subject; and the aspect of module format which is stated as valid with value total 0,83%; (2) the validity of learning module in material aspectof module (valid) is 0,85%; (3) practicality of learning module that is based on lecturer�s response is stated as very practical with value total 96,9% and based on student�s respons is stated very practical with value total 84,27%; (4) the effectiveness of learning module is stated as effective in improving student learning result. Based on the findings of this study were concluded that this learning module is valid, very practical, and effective to be used as teaching material of food technology subject.
Pendidikan Kesehatan Metabolik untuk Pencegahan dan Pengobatan Penyakit Metabolik Menggunakan Sumber Daya Lokal di Kota Payakumbuh
Authors: Darussyamsu Rahmawati , Arsih Fitri , Ristiono Ristiono
Published: April 2018

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk memberikan pemahaman dan perubahan pola hidup kepada masyarakat Kelurahan Subarang Batuang, Kota Payakumbuh agar terhindar dari penyakit metabolik. Hal ini didasari dari permasalahan warga kota Payakumbuh, karena kota ini merupakan salah satu kota kuliner 24 jam di Provinsi Sumatera Barat dengan beraneka makanan khas yang mengandung banyak santan, sehingga memicu tingginya kadar kolesterol dan diikuti oleh penyakit-penyakit metabolik lainnya, seperti diabetes dan asam urat. Oleh sebab itu, telah dilaksanakan kegiatan pengabdian kepada masyarakat di kota Payakumbuh, khususnya di Kelurahan Subarang Batuang sesuai dengan permintaan warganya. Pada kegiatan pengabdian ini telah dilakukan pemeriksaan darah di laboratorium klinik Sukma Bunda sehubungan dengan penyakit metabolik yang sering dijumpai pada masyarakat, yaitu: pemeriksaan gula darah, kolesterol dan asam urat, sebagai gambaran awal bagi masyarakat tentang kondisi kesehatan metaboliknya pada 30 orang peserta. Selanjutnya diberikan penyuluhan dari dokter kepada masyarakat tentang pentingnya menjaga kesehatan metabolik. Selain itu, peserta juga dilatih untuk membuat obat-obatan herbal untuk mencegah dan mengobati penyakit metabolik. Berdasarkan evaluasi kegiatan yang telah dilaksanakan, diketahui bahwa kegiatan ini telah berhasil dengan sangat baik memberikan kesadaran dan pemahaman kepada warga tentang pentingnya menjaga kesehatan metabolik. Peserta juga menyarankan agar kegiatan sejenis dapat dilakukan secara berkelanjutan dan juga disosialisasikan di tempat-tempat lainnya kepada masyarakat dengan tingkat usia yang lebih rendah, agar penyakit metabolik dapat dicegah lebih dini.
The Use of Tracker Application to Enchance Physics Teachers in Senior High School in Making Laboratory Video
Authors: Yulkifli Yulkifli , Ramli Ramli
Published: April 2018

During this time, practicum activities in the School have not gone well. In fact, practical activities can support the understanding of the theory or material Physics taught to students. In addition, the lab can also generate student motivation and passion, as well as develop the students' process skills by conducting experiments. Experimental activities are very useful for students if this activity has been planned and designed well by teachers. Currently, technological advances can help improve Physical practice in the School. One of them by using video based laboratory (VBL). VBL is a practical activity in the laboratory in the form of video-based educational software. Technical Guidance for Making Video-Based Laboratory Application Tracker for Physics Teacher in Teachers' Consultation in Subject (MGMP) of High School Physics (SMA) in Padang and Padang Panjang City ", This activity was held for 2 months with the activity stage is preparation, implementation and activity evaluation. Based on the planning, the activities have been successfully done well. Implementation of this activity by the way the teacher is guided using the application Tracker on Physics practicum activities. The output of this activity is the Digital Video Labaratory for teaching material with Tracker application for physics practicum activity, especially Regular Straight Motion (GLB), Straight Changed Motion (GLBB), Momentum and Impulse.
Meningkatkan Kemampuan Argumentasi Ilmiah Siswa SMP Kelas VII Melalui Bahan Ajar IPA Terpadu Dengan Tema HALO Pada Topik Kalor
Authors: Putri Rahmah Evita
Published: April 2018

Penelitian ini merupakan penelitian semu (quasi experiment), dengan tujuan yakni meningkatkan kemampuan argumentasi ilmiah melalui bahan ajar IPA terpadu dengan tema Halo pada topik kalor. Bahan ajar yang digunakan yakni menggunakan bahan ajar ipa, yang dipadukan dengan model webbed, dan telah diuji kelayakannya menggunakan uji kelayakan berdasarkan kriteria BNSP. Kemampuan argumentasi ilmiah siswa diuji dengan menggunakan soal essai dengan cakupan materi perubahan wujud zat dan kalor. Hasil yang diperoleh nilai rata-rata pretest kelas kontrol lebih tinggi jika dibandingkan dengan kelas eksperimen pada saat pretest. Pada kelas kontrol didapatkan rata-rata sebesar 63,71 sedangkan dikelas eksperimen diperoleh nilai rata-rata sebesar 62,71. Sehingga kelas kontrol dan kelas eksperimen memiliki selisih nilai sebesar 1,00. Peningkatan argumentasi ilmiah antara kelas kontrol dan kelas eksperimen berbeda secara signifikan. Dimana kelas eksperimen yang belajar dengan menggunakan bahan ajar IPA terpadu dengan tema Halo mendapatkan nilai N-Gain pada kategori tinggi (0,84) berbeda dengan kelas kontrol yakni kelas yang menggunakan bahan ajar IPA terpadu konvensional mendapatkan nilai N-Gain pada kategori sedang (0,64)
Pembuatan Media Pembelajaran Berbasis Komputer Untuk Materi Sifat Asam Basa dan Garam Kelas VII Tingkat SMP
Authors: Muslim Khairani
Published: April 2018

Salah satu materi pokok pada IPA SMP adalah sifat asam, basa dan garam. Media berbasis computer yang dirancang ini menggunakan program aplikasi Macromedia flash 8. Media ini disajikan dengan simulasi eksperimen sederhana yang dapat memvisualisasikan kondisi yang sebenarnya, sehingga dapat membantu siswa untuk menggunakan media ini hingga akhir secara mudah dan aman. Tujuan dari penelitian ini adalah menghasilkan sebuah media berbsasis computeryang didukung dengan eksperimen sederarhana dan soal-soal pengayaan yang interaktif. Jenis Penelitian ini adalah Research and Development (R & D). Sampel penelitian ini adalah 35 siswa salah satu SMP di kota Padang. Intrumen penelitian yang digunakan adalah angket. Analisis data pada instrumen tersebut menggunakan analisis skala likert. Variabel dalam intrumen tersebut terkait dengan konten, motivasi dan praktikalitas dari media tersebut. Berdasarkan hasil penelitian didapat rata-rata keseluruhan pada media yang dibuat tersebut sebesar 4,67. Hasil ini dapat mengintrepetasikan sebuah media tersebut layak diguakan dalam pembelajaran khususnya pada materi sifat asam, basa dan garam
Manufacture and experimental evaluation of a hydrokinetic turbine for remote communities in Colombia
Authors: E. Chica  , Edwar A. Torres  , J. Arbeláez
Published: April 2018

The manufacture and experimental evaluation of a hydrokinetic turbine of 1 kW are presented. A water velocity of 1.5 m/s, with a power coefficient of 0.4382, a tip speed ratio of 6.325, an angle of attack and pitch angle of 5 and 0 degrees, respectively, a blade length of 0.79 m, a drive train efficiency of 70% and a S822 hydrofoil profile were used for the design. The blades were designed and manufactured by Computer Aided Design (CAD) and Computer Aided Manufacturing techniques (CAM) with a solid cross-section in order to provide the required strength. They were made of Prolon MS (Castnylon + Molybdenum). The platform that supports the turbine was a modular floating raft simple to install, flexible, and durable made of high density polyethylene resin. The supporting structure of the turbine generator was made of stainless steel. The turbine was constructed of high quality and durable materials. To determine the efficiency of the designed turbine, the electrical power and kinetic energy of the river were measured. The experimental assays of the turbine were performed in the Sinú River located in Córdoba (Colombia), obtaining an overall equipment efficiency of 0.5359.
Measurement of the Current-Voltage Curve of Photovoltaic Cells Based on a DAQ and Python
Authors: Israel Reyes-Ramírez  , Jorge Fonseca-Campos  , Juan Luis Mata Machuca
Published: April 2018

The renewable energy has grown extensively in the last decades. The photovoltaic panels have been playing a significant role in the technologies used to produce this kind of energy. This tendency is expected to continue in the future, because the cost of the solar panels has been gradually reduced. Systems providing information of the performance of the solar cells can be helpful for technicians and researchers. In this paper a system to measure the I-V curves of photovoltaic cells is presented. This is composed by a data acquisition board (DAQ) and a personal computer (PC). The program to control the DAQ is written in Python. With this system a polycrystalline silicon solar cell was tested under low irradiance conditions (less than 100 W/m2) with an artificial light source. The repeatability of the I-V curves obtained has less than 5 % error.
Evaluation of Method for Attributing Responsibilities due to Voltage Unbalance in Electrical Systems
Authors: P. H. L. S. Pinto  , M. V. B. Mendonça  , F. A. M. Moura  , M. R. M. C. Albertini  , A. J. J. P. Rosentino  , P. H. O. Rezende
Published: April 2018

Several voltage unbalance conditions produce different harmful effects to the proper functioning of the many electrical system equipments, such as three phase induction motors. Thus, it is essential to know those responsible for the unbalance, on the one hand the energy distributor having a duty to provide a supply in accordance with the regulations and, on the other hand, the consumer who wishes to receive energy with quality and is obliged to maintain its installation according to the norms. In this scenario, the present paper has as objective to evaluate the conforming and non-conforming current method in front of an electric system with the presence of unbalanced loads and a three-phase induction motor with regard to the attribution of responsibility due to voltage unbalance.
Kek ve Pilice İnoküle Edilen Salmonella Enteritidis’in Termal İnaktivasyonu
Authors: Dadalı Ceyda , Kışla Duygu
Published: April 2018

In this study, thermal inactivation of Salmonella Enteritidis inoculated to the cake dough and a whole raw chicken was investigated. The cake dough was inoculated with 6.15 log-cfu/g S. Enteritidis then, thermal treatment was applied at 160°C top-bottom fan cooking mode. The initial count of S. Enteritidis showed reductions 1.49 log-cfu/g, 2.06 log-cfu/g and 4.29 log-cfu/g in the samples from the cold point location from the geometric center of the cake at 5, 7 and 10 minutes of thermal treatment, respectively. Although S. Enteritidis is not detected at the end of 15 minutes of heat treatment, the center of the cake temperature has reached 85.69°C and the cake sample is uncooked and its sensory properties are not acceptable. The cake that is safe and favorable with the sensory properties to the consumers was obtained by heat treatment for 30 minutes. After the cold point of a whole raw chicken was inoculated with 7.29 log-cfu/g S. Enteritidis, thermal treatment was applied at 220°C top-bottom fan cooking mode. The temperature at the cold point of 35 and 45 minutes heat-treated chickens reached 59.33 and 74.08°C, respectively, and 1.93 log-cfu/g and 5.33 log-cfu /g S. Enteritidis reduction caused in the samples respectively. S. Enteritidis cells were not detected in the whole chicken heat treated at 220°C for 60 minutes. The cakes, heat treated at 160°C top-bottom fan cooking mode for 30 minutes, were stored at two different storage temperatures as 4°C and 25°C for 72 hours. The whole chicken, heat treated at 220°C top-bottom fan cooking mode for 60 minutes, was stored at 4°C for 72 hours. S. Enteritidis cells were not detected in the cake and the whole chicken samples after the storage period.
PERBANDINGAN PERENCANAAN JEMBATAN STRUKTUR BETON DAN JEMBATAN STRUKTUR BAJA DITINJAU DARI SEGI BIAYA
Authors: Wulandari Diah Ayu Restuti , Fansuri Subaidillah
Published: April 2018

Jembatan merupakan suatu sarana transportasi yang menghubungkan dua sisi tempat yang terhalang keadaan alam atau keadaan transportasi dengan tujuan dan fungsi yang berbeda-beda. Perencanaan jembatan di Desa Babbalan Kecamatan Batuan merupakan salah satu contoh, dimana fungsi jembatan yang akan dibangun adalah sarana transportasi utama untuk menuju ke RS. Baghraf Medika yang akan dibangun di lokasi perencanan jembatan tersebut. Sesuai kebutuhan dari pemilik RS. Baghraf Medika, maka ditentukan  lebar dan panjang jembatan yaitu dengan luas 144 meter2. Dengan terbatas waktu penyusunan penelitian ini, maka pada penelitian ini dikhususkan pada perencanaan struktur atas jembatan. Berdasarkan dari hasil penelitian dan hasil pembahasan tentang perbangdingan perencanaan struktur atas jembatan gelagar balok T dan jembatan baja komposit, menunjukkan bahwa pada struktur atas jembatan gelagar balok T mempunyai lendutan maksimal yang terjadi 0,0142 kNm dan dikatakan aman karena telah memenuhi syarat lendutan < 0,05 kNm. Sedangkan pada struktur atas jembatan baja komposit mempunyai lendutan maksimal 0,0440 kNm dan dikatakan aman karena telah memenuhi syarat lendutan < 0,05 kNm. Serta untuk anggaran biaya struktur atas jembatan gelagar balok T untuk bentang 12 m yaitu sebesar Rp. 657.238.300,00. Sedangkan untuk anggaran biaya struktur atas jembatan baja komposit untuk bentang 12 m yaitu sebesar Rp. 755.856.700,00. Sehinggan selisih perbedaan biaya antara perencanaan struktur atas jembatan gelagar balok T dan struktur atas jembatan baja komposit yaitu sebesar Rp. 98.618.400,00. Maka ditinjau dari segi biaya untuk struktur atas jembatan dengan bentang 12 m lebih efisien struktur atas jembatan gelagar balok T dari pada struktur atas jembatan baja komposit.
Makine öğrenmesi algoritmaları ve dalgacık dönüşümü ile EKG sinyalinden özellik çıkarımı
Authors: KODAL SEVİNDİR Hülya , ÇETİNKAYA Süleyman , YAZICI Cüneyt
Published: April 2018

Günümüzde biyomedikal sinyallerin analizinde dalgacık dönüşümünün
kullanılması oldukça yaygın olup elde edilen sonuçlar etkileyicidir. Bu
çalışmada, biyomedikal sinyallerden elektrokardiyogram (EKG) sinyallerinde QRS
zirvesi belirleme hedeflenmiş ve daha iyi sonuçlar almak için öncelikle EKG
sinyallerindeki zemin gezinme gürültüsünün giderilmesi ve yüksek frekanslı
gürültünün temizlenmesi amacıyla dalgacık analizi kullanılmıştır. Daubechies 10
(db10) dalgacık dönüşümü uygulanan sinyalin 10. seviye yaklaşım katsayısı ve
10. seviye detay katsayısı çıkartılarak sinyaldeki zemin gezinmesi problemi
giderilmistir. Yüksek frekans gürültüsünün giderilmesi için ise zemin gezinmesi
problemi giderilmiş olan sinyale dalgacık gürültü temizleme uygulanmıştır.
Gürültüsü temizlenen sinyalde QRS zirvelerini belirlemek için sinyalin 1. türev
ve 2. türev bilgileri ele alınarak Destek Vektör Makineleri ve Naive Bayes
algoritmaları kullanılmıştır. QRS zirvelerinin bulunmasında, MIT-BIH aritmi
veri tabanında verilen QRS zirvelerinin konum bilgileri kullanılmıştır. QRS
zirvelerini doğru belirlemede Destek Vektör Makineleri algoritması Naive Bayes
algoritmasından daha yavaş sonuç vermesine rağmen %99.46 duyarlılık, %100
seçicilik ve %0.54 hata değerlerine ulaşmıştır.
Housing projects in Trabzon: Marketting discourses and physical environmental features
Authors: AYDIN TÜRK Yelda , KARADENİZ Beyza
Published: April 2018

The

housing projects, that have turned into concept projects promoted as a

commodity since last decade in Turkey. These projects, are marketed with

discourses such as “the long-awaited life”, “ideal home” and are constructed on

the urban fringes. In this study, the housing projects that developed in

Trabzon in recent years have been examined in this context. Marketing discourse

and physical environmental characteristics of the projects have been analyzed.

Thus, the study finds out to what extent the advertisement discourses are

actualized and reveals physical environmental features. Kaşüstü and Yalıncak

neighborhoods were chosen as the study areas. Firstly, discourse analysis

carried out as the method for analyzing marketing discourse of the housing

projects. Then, the applied projects were surveyed on site and observed, the

physical environmental relations were examined and pattern analyzes were made.

It is seen that, the meanings that ascribed to the house in the literature

doesn't correspond with the marketing discourses in terms of content. In

addition, the built environment that is promoted in the discourses is not realized.

Finally, it has been observed that the environments created by the proposed

housing projects cause destruction in the natural and physical structure of the

city.
Synthesis and Biological Evaluation of the Antimicrobial Natural Product Lipoxazolidinone A
Authors: Mills Jonathan J. , Robinson Kaylib R. , Zehnder Troy E. , Pierce Joshua G.
Published: April 2018

The lipoxazolidinone family of marine natural products, with an unusual 4-oxazolidinone heterocycle at their core, represents a new scaffold for antimicrobial discovery; however, questions regarding their mechanism of action and high lipophilicity have likely slowed follow-up studies. Herein, we report the first synthesis of lipoxazolidinone A, 15 structural analogs to explore its active pharmacophore, and initial resistance and mechanism of action studies. These results suggest that 4-oxazolidinones are valuable scaffolds for antimicrobial development and reveal simplified lead compounds for further optimization.
Bottom-up Evolution from Disks to High-Genus Polymersomes
Authors: Contini Claudia , Pearson Russell , Wang Linge , Messager Lea , Gaitzsch Jens , Rizzello Loris , Ruiz-Pérez Lorena , Battaglia Giuseppe
Published: April 2018

We report the design of polymersomes using a bottom-up approach where the self-assembly of amphiphilic copolymers poly(2-(methacryloyloxy) ethyl phosphorylcholine)–poly(2-(diisopropylamino) ethyl methacrylate) (PMPC-PDPA) into membranes is tuned using pH and temperature. We study this process in detail using transmission electron microscopy (TEM), nuclear magnetic resonance (NMR) spectroscopy, dynamic light scattering (DLS), and stop-flow ab- sorbance disclosing the molecular and supramolecular anatomy of each structure observed. We report a clear evolution from disk micelles to vesicle to high-genus vesicles where each passage is controlled by pH switch or temperature. We show that the process can be rationalised adapting membrane physics theories disclosing important scaling principles that allow the estimation of the vesiculation minimal radius as well as chain entanglement and coupling. This allows us to propose a new approach to generate nanoscale vesicles with genus from 0 to 70 which have been very elusive and difficult to control so far.
Development of Soil Distribution and Liquefaction Potential Maps for Downtown Area in Yangon, Myanmar
Authors: Tint Zar Lee , Kyaw Nyan Myint , Kyaw Kyaw
Published: April 2018

The problem of soil against liquefaction during earthquakes is devastating geotechnical phenomenon. Soil against liquefaction is generally occurred in loose cohesionless saturated soil when pore water pressure increases suddenly due to earthquakes and shear strength of the soil decreases to zero. Yangon area has been chosen as the study area because it is the most populated and largest city in Myanmar and located in low to medium seismicity region. In this purpose, the liquefaction potential map have been prepared for site planners and decision makers to prevent loss of lives. Geographic Information System (GIS) is very useful in decision making about the area subjected to liquefaction. ArcGIS software is used to develop the liquefaction potential maps of the selected area in Yangon City. To perform in this study, the field borehole data for groundwater table, Standard penetration test (SPT), blow counts, dry density, wet density and fine content, etc. have been collected from the downtown area of this city. Firstly, the safety factor of soil liquefaction is computed by using NCEER (National Center of Earthquake Engineering Research, 1997) Method based on cyclic resistance ratio and cyclic stress ratio and then liquefaction Potential Index (LPI) values are determined using Luna and Frost Method, 1998. Finally, liquefaction potential maps are developed corresponding to the ground motions for annual probability of exceedance equal to 1%, 2% and 10% in 50 years.
Delayed or instant copulation? Effect of female copying on male mating decisions
Authors: Milonoff Markku
Published: April 2018

Observations of capercaillie, Tetrao urogallus, males that do not mate with soliciting females are rather common. Here I present circumstantial evidence that the delaying of copulation is voluntary and propose a hypothesis to explain it. Males of lekking species may delay copulation voluntarily if females copy the mate choice of others, i.e. females around a male may attract females arriving later at the lek. The benefits of delayed copulation depend on the tendency of females to copy each other and the males' risk of losing copulations. Widely scattered display territories in dense forests and longevity are factors that may promote the delaying behaviour of capercaillie and other species with similar characteristics.
Population fluctuations of gyrfalcon and rock ptarmigan: analysis of export figures from Iceland
Authors: Nielsen Ólafur K. , Pétursson Gunnlaugur
Published: April 2018

We analysed harvest data for gyrfalcon Falco rusticolus and rock ptarmigan Lagopus mutus from Iceland with respect to regularity in fluctuations of numbers. The gyrfalcon data concerned live trapped birds exported to Denmark between 1731 and 1793, and totalled 4,848 falcons, including 4,318 grey, 156 half‐white and 374 white colour morphs. According to contemporary sources grey birds were part of the local breeding population (islandus‐type birds) but the other morphs represented mainly visitors from Greenland. This is also the current situation but some of the lightest Icelandic breeders could be classified as half‐white. The rock ptarmigan harvest data concerned birds exported to Europe in the period 1864–1919, in total ca 3.3 million birds. The data series for white and half‐white gyrfalcons were significantly correlated (r = 0.501, p < 0.001). The data series for grey and white morphs (r = ‐0.099, P = 0.445) and grey and the half‐white morphs (r = ‐0.1183, P = 0.360), showed no correlation. Time series analysis showed that the white (candicans‐type) morph fluctuated irregularly. The half‐white morph behaved similarly but also showed some affinity with the grey morph, and could have represented a mixture of local breeders and Greenlandic winter visitors. Grey morph gyrfalcons and rock ptarmigan showed regular fluctuations in numbers with a 10‐year periodicity. The reliance of Icelandic gyrfalcons on rock ptarmigan during the early part of the breeding season and in all phases of the ptarmigan cycle is well established and may offer a case for causal connections between the two cyclic populations.
Hunting mortality of mallards Anas platyrhynchos in relation to time of day, flocking behaviour, and individual condition
Authors: Dufour Kevin W. , Ankney C. Davison
Published: April 2018

Diurnal variation in the number of mallards Anas platyrhynchos shot by hunters at Long Point, Ontario, was assessed during the 1989 hunting season to determine peak periods of harvest and to test the prediction that ducks shot during non‐peak periods would be in poor relative condition. In addition, attempts were made to determine whether lone mallards are disproportionately vulnerable to hunting and whether ducks shot as singles are in poor condition relative to those shot from flocks. Diurnal variation in size of the harvest was pronounced, with peak harvest occurring during the first third of the day. Relatively few ducks were shot at mid‐day, suggesting that mallards were largely inactive at this time. Analysis of abdominal fat masses, however, revealed no relationship between individual condition and time shot. Single mallards were apparently more vulnerable to hunting than were those occurring in flocks, as the hunter‐shot sample contained a high proportion of lone birds relative to an expected frequency based on observational data. However, no evidence of a relationship between individual condition and status (i.e. alone vs. in a flock) at the time of harvest was found. Our results, in conjunction with previous work, suggest that flocking behaviour may be a general component of hunting mortality in waterfowl and furthermore that increased vulnerability of lone birds can occur independently of variation in individual condition.
Biases in the analysis of the diet of the red foxVulpes vulpes
Authors: Cavallini Paolo , Volpi Teresa
Published: April 2018

The diet of red foxesVulpes vulpesfrom the province of Pisa, Central Italy, was compared on the basis of analysis of the contents of 320 guts (stomachs and intestines), and of 211 faecal samples. The faeces and guts were collected in the same area during the same period. Mammal remains (in particular of small mammals) were more abundant in faeces than in stomachs and intestines, whereas invertebrates and grass were more abundant in guts. This may be due to different sampling methods which included hunting (guts) which may lead to an overweight of young, inexperienced foxes, eating less preferred food items, being represented in the sample, and collection of faeces which might primarily come from resident, dominant individuals. Bird frequency, but not volume, decreased significantly from stomachs to intestines, and from intestines to faeces. Studies based on stomach contents report a higher percentage of bird remains than studies based on faeces (frequency of occurrence: 19.4 ± 10.3% vs. 9.1 ± 6.9%; P = 0.014). The bias presented may be related to the mechanics of digestion and suggestions to limit such biases are put forward.
Effects of lichen biomass on winter diet, body mass and reproduction of semi‐domesticated reindeer Rangifer t. tarandus in Finland
Authors: Kojola Ilpo , Helle Timo , Niskanen Mikko , Aikio Pekka
Published: April 2018

Winter food supply very likely influences the life history of reindeer Rangifer t. tarandus. We therefore examined how lichen biomass affects winter diet composition, body mass and reproduction in 14 herds of semi‐domesticated reindeer in northern Finland. Diet composition was assessed microhistologically on faeces collected from the actual winter feeding sites of reindeer. When lichen was scarce at these sites reindeer included vascular plants and mosses in their diet. Calf dressed weight depended on both ground lichen biomass and the intensity of supplemental feeding, doe dressed weight depended on lichen biomass alone. One explanation for this difference between calves and does is the connection between food supply and calf mortality: low lichen biomass may promote newborn mortality, which, in turn, frees breeding females from investing further in current reproductive investment. Relative offspring weight (calf/female weight ratio) depended on both lichen biomass and supplemental feeding. Low lichen availability appeared to enhance the impact of density‐independent factors on reproduction, because the annual variation in reproductive rate increased with decreasing lichen biomass.
Öğretmen Adaylarının Teknolojik Pedagojik Alan Bilgisi Öz Güvenlerinin Değişiminin İncelenmesi
Authors: İNCE AKA Elvan , DOĞAN Alev , SERT ÇIBIK Ayşe
Published: April 2018

Bu
çalışmanın amacı fen bilgisi öğretmen adaylarının teknolojik pedagojik alan
bilgisi özgüvenlerinin değişimini incelemektir. Çalışma, 2015-2016 eğitim-öğretim yılında bir devlet
üniversitesinin Fen Bilgisi Eğitimi Anabilim Dalı son sınıfında okuyan 35
öğretmen adayı ile 8 haftalık (16 saat) 
bir eğitim kapsamında gerçekleştirilmiştir. İlk aşamada adaylara çoklu
öğrenme unsurlarıyla ilgili uygulama örnekleri tanıtılmış ve adaylar gruplar
halinde çalıştırılmıştır. Daha sonra adaylardan fen bilimleri alanından
seçilmiş bazı konularla ilgili çoklu öğrenme unsurlarıyla desteklenmiş sunum
hazırlamaları ve sunmaları istenmiştir. Çalışma yarı deneme modellerinden tek
gruplu ön test-son test araştırma desenine uygun olarak tasarlanmıştır.
Çalışmada veri toplama aracı olarak Teknolojik Pedagojik Alan Bilgisi Öz Güven
Ölçeği (TPABÖGÖ) kullanılmıştır. Çalışma sonucunda, öğretmen adaylarının
hazırladıkları ve sundukları çoklu öğrenme unsurlarıyla desteklenmiş
sunumlarının, adayların teknolojik pedagojik alan bilgisi özgüvenlerinin
değişiminde ve özellikle teknolojik pedagojik alan bilgisi ile teknolojik
pedagojik bilgilerinde olumlu yönde etkiye sahip olduğu tespit edilmiştir.
FAKTOR-FAKTOR YANG MEMENGARUHI PERMINTAAN DAN EFEKTIVITAS KEBIJAKAN IMPOR GARAM INDONESIA
Authors: Jamil Ahmad Syariful , Tinaprilla Netti , Suharno .
Published: April 2018

Garam merupakan komoditas strategis Indonesia yang permintaannya akan terus meningkat seiring dengan peningkatan jumlah penduduk. Adanya ketidakseimbangan antara kebutuhan garam dalam negeri dengan produksi garam domestik mendorong pemerintah untuk melakukan impor garam. Penelitian ini bertujuan menganalisis faktor-faktor yang memengaruhi volume permintaan dan efektivitas kebijakan impor garam Indonesia. Penelitian ini menggunakan metode regresi data panel dari tahun 2004-2013. Hasil penelitian menunjukkan bahwa faktor-faktor yang berpengaruh secara signifikan terhadap volume permintaan impor garam Indonesia yaitu: produksi garam domestik, harga garam impor, Produk Domestik Bruto (PDB) riil Indonesia, PDB riil negara sumber impor dan nilai tukar riil. Produksi garam domestik dan harga garam impor memiliki hubungan yang negatif dengan volume impor, sedangkan variabel lainnya memiliki hubungan yang positif. Temuan lain adalah kebijakan impor yang telah dikeluarkan oleh pemerintah belum sepenuhnya efektif diterapkan pada saat studi ini dilakukan. Rekomendasi kebijakan yang seharusnya dapat diterapkan oleh pemerintah yaitu sinkronisasi data, penguatan pengawasan kebijakan impor, serta intensifikasi dan ekstensifikasi lahan untuk meningkatkan produksi garam domestik. Salt is a strategic commodity which its demand will continue to increase along with the increasing population. The imbalance between the demand and the supply of salt in Indonesia encourages the government to import salt. This study aimed to analyze: the factors that influence the demand of salt import, the effectiveness of salt import and alternative formulation of domestic salt policies. The panel regression model was conducted to address the problem. The study found that the variables that significantly influenced the import demand of salt in Indonesia were domestic salt production, imported salt price, real GDP of Indonesia, real GDP of importing source country and real exchange rate. Domestic salt production and imported salt price had a negative relationship towards import volume, while other variables had a positive relationship. Another finding is that the goverment policy of importing salt has not been fully implemented at the time of this study.  The policies that should be further improved by the goverment can be done by synchronizing the  data, strenghtening the monitoring import policy, land intensification and extension support in order to produce salt.
DAMPAK ASEAN-CHINA FREE TRADE AGREEMENT (ACFTA) TERHADAP KINERJA PEREKONOMIAN DAN SEKTOR PERTANIAN INDONESIA
Authors: Nasrudin Nasrudin , Sinaga Bonar M , Walujadi Dedi
Published: April 2018

Sektor pertanian Indonesia seharusnya memperoleh dampak positif dari ASEAN-China Free Trade Agreement (ACFTA). Namun demikian,  kinerja sektor pertanian belum menunjukkan peningkatan yang berarti ketika sebagian besar komoditas pertanian telah diturunkan tarifnya melalui tahapan ACFTA. Studi ini meneliti dampak ACFTA terhadap kinerja sektor pertanian Indonesia sebelum dan sesudah ACFTA dengan menggunakan deskriptif analisis. Studi ini juga memprediksi kinerja perekonomian dan kinerja sektor pertanian setelah ACFTA diberlakukan secara penuh menggunakan metode ekonometrik dengan persamaan simultan. Hasil studi ini menunjukkan bahwa kinerja sektor pertanian Indonesia tidak lebih baik dibandingkan dengan sebelum implementasi ACFTA, dan diprediksi akan lebih buruk lagi setelah ACFTA diberlakukan sepenuhnya, akibat dari tingginya tekanan kompetisi dan kekakuan produsen domestik. Peningkatan kualitas infrastruktur domestik, pengembangan riset/teknologi serta penerapan regulasi yang mendukung daya saing merupakan kebijakan yang sangat diperlukan. The ASEAN-China Frade Trade Agreement should positively influence Indonesia’s agricultural sector performance. Unfortunately, the current agricultural sector performance shows no signs of significant increase despite a decrease of tariffs on most agricultural commodities through ACFTA. This study sets out to examine the overall impact of ACFTA on Indonesian agricultural sector performance prior to and after the implementation of ACFTA through descriptive analysis. This study also predicts the overall economic performance and agricultural sector performance after the full implementation of ACFTA by utilizing econometric method with simultaneous equation. This study finds that the agricultural sector performance does not improve after the implementation of ACFTA and it argues further that it will weaken due to high pressure of competition and the rigidity of domestic producers. Quality improve on domestic infrastructure, research and technology development and regulations which enhance competitiveness are high priority policies to support Indonesia’s agricultural sector performance.
KONVERGENSI PENDAPATAN INDONESIA DAN MITRA REGIONAL TRADE AGREEMENT (ASEAN+6): APLIKASI METODE CLUSTER FUZZY
Authors: Muslim Azis
Published: April 2018

Studi ini mengevaluasi pernyataan bahwa Regional Trade Agreement (RTA) mendorong konvergensi pendapatan. Dengan menggunakan data historis dan menerapkan algoritma fuzzy c-means clustering studi ini menguji konvergensi pendapatan Indonesia dan mitra RTA. Hasil studi menunjukkan bahwa dalam dua dasawarsa sejak tahun 1993, meskipun dengan adanya RTA, Indonesia mengalami pertumbuhan ekonomi, tetapi pendapatan Indonesia tidak konvergen ke arah pendapatan negara maju. Perdagangan perlu dipakai sebagai sarana alih pengetahuan dan teknologi serta peningkatan “kapabilitas sosial” untuk mendukung percepatan pertumbuhan ekonomi. This study evaluates the proposition that Regional Trading Agreements (RTA) endorses convergence of income. Using historical data and fuzzy c-means clustering algorithm, this study analyzes the convergence of Indonesia’s income and RTA partners. The results show that in two decades since 1993, with the presence of RTA, Indonesia has experienced economic growth, yet Indonesia’s income did not converge towards the incomes of developed countries. Trade needs to be utilized as a mean to support knowledge and technology transfer and to increase “social capability” to enhance the acceleration of economic growth.
Efeito da irrigação salina no crescimento inicial de Pisum sativum L.
Authors: De Sousa Leite Tiago
Published: April 2018

Este estudo objetivou avaliar o efeito da irrigação salina no crescimento inicial de Pisum sativum. O experimento foi realizado em maio de 2015, na University of Adelaide, em Adelaide, Austrália. Na composição dos tratamentos, foram utilizadas três concentrações salinas para irrigação das plantas (0, 150 e 300 mM NaCl). Foi utilizado o delineamento de blocos ao acaso, com três blocos e seis repetições por bloco. Sete dias após o início dos tratamentos, avaliou-se o índice de conteúdo de clorofila foliar, temperatura foliar, altura da parte aérea, comprimento das raízes e as massas fresca e seca da parte aérea e raízes. Pôde-se verificar considerável redução no crescimento inicial de P. sativum devido à presença de sais na água de irrigação, o que indica baixa tolerância dessa espécie ao estresse salino.