bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH LATIHAN TERPUSAT DAN LATIHAN ACAK TERHADAP HASIL PENGUASAAN TEKNIK DASAR BOLA BASKET
Authors: Wati Setiana , Sugihartono Tono , Sugiyanto Sugiyanto
Published: August 2019

ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh antara latihan terpusat dan latihan acak terhadap hasil penguasaan teknik dasar bola basket. Penelitian ini menggunakan metode eksperimen yang dilakukan terhadap dua kelompok, yaitu kelompok eksperimen satu yang di beri perlakuan latihan terpusat dan kelompok eksperimen dua di beri perlakuan latihan acak. Penelitian dilakukan di Klub Basket Poltekkes Kemenkes Bengkulu dengan sampel yang di pilih berdasarkan karakteristik tertentu. Analisis statistik yang di gunakan dalam penelitian ini adalah Uji t untuk menguji hipotesis bahwa “latihan acak memberikan pengaruh lebih baik dibandingkan dengan latihan terpusat dalam meningkatkan keterampilan teknik dasar bola basket”. Uji syarat statistik t telah memenuhi syarat homogen dan data berdistribusi normal berdasarkan perhitungan statistik dan pengujian kriteria uji statistic di dapat hasil bahwa latihan terpusat dan latihan acak memberikan pengaruh terhadap hasil penguasaan teknik dasar bola basket. Hal ini diketahui dari data thitung = -5,11 > ttabel = 2,11 dengan taraf ?=0,05. Kesimpulan dari penelitian ini dilihat dari hasil uji signifikan perbedaan peningkatan latihan kedua kelompok menunjukkan bahwa latihan acak memberikan pengaruh yang lebih signifikan terhadap hasil penguasaan teknik dasar bola basket.Kata Kunci: Latihan terpusat, Latihan acak, Teknik Dasar Bola Basket.ABSTRACTThis study aims to determine the effect of centralized training and random exercise on the results of mastery of basic techniques of basketball. This study used experimental methods conducted on two groups, namely the experimental group one which was given the treatment of centralized exercise and the experimental group of two in the treatment of random treatment. The research was conducted at Club Basket Poltekkes Kemenkes Bengkulu with selected samples based on certain characteristics. The statistical analysis used in this study is t-test to test the hypothesis that "randomized exercise gives better effect than centralized training in improving basic basketball technique skills". Test statistic requirement t has complied with homogeneous requirements and normal distributed data based on statistical calculation and statistical test criterion test in can result that centralized exercise and random exercise have an effect on the result of mastery of basic technique of basketball. It is known from thitung = -5,11> ttable = 2,11 with ? = 0,05. The conclusions of this study seen from the results of significant test differences in the improvement of the two groups showed that the random exercise gives a more significant effect on the results of mastery of basic techniques of basketball.Keywords: Centralized exercise, Random exercise, Basic Basketball Technique
PENGARUH LATIHAN PLYOMETRIC DI PASIR TERHADAP POWER OTOT TUNGKAI SISWI DI SMKN1 KOTA BENGKULU TAHUN 2017/2018
Authors: Cahyadi Melfi , Pujianto Dian , Arwin Arwin
Published: August 2019

ABSTRAKPenelitian ini bertujuan untuk mengkaji pengaruh latihan plyometric dipasir terhadap peningkatan power otot tungkai pada siswi di SMKN1 Kota Bengkulu tahun 2017/2018. Metode yang digunakan dalam penelitian ini adalah metode eksperimen. Dengan sampel siswi yang berjumlah 32 orang. Instrumen penelitian ini untuk mengetahui peningkatan power otot tungkai dengan menggunakan tes vertical jump. Teknik analisis data menggunakan uji-t. Hasil penelitian di peroleh t hitung = 10,654 jika di bandingkan dengan nilai t tabel= 1,696 maka nilai t hitung > t tabel. Ini berarti ada pengaruh yang signifikan dari latihan plyometric di pasir terhadap power otot tungkai siswi di SMKN1 Kota Bengkulu.Kata kunci : plyometric pasir, power otot tungkai.ABSTRACTThe Effect Of Plyometric Exercise on the Sand toward Female Students Leg Muscle Power at SMKN1 Kota Bengkulu in Academic Year 2017/2018. Thesis. Bengkulu: Bachelor Degree Program of Pyhsical Education, University of Bengkulu, 2018. This study aimed at examining the effect of plyometric exercise on sand toward the increasing of leg muscle power in female students at SMKN1 Kota Bengkulu in academic year 2017/2018. The method used in this research was experiment metho. with 32 students as the sample of research. The instrument used to know the increasing of leg muscle power in this research was by using vertical jump test. Data analysis techniques used was t-test. The results of this research showed that t-count = 10,654 when compared to t-table = 1.696 so the value of t-count > t table. This meant that there was a significant effect of plyometric exercise on sand toward female students’ leg muscle power at SMKN1 Kota Bengkulu.Keywords: plyometric sand, leg muscle power
IMPLEMENTASI KEBIJAKAN KELAS OLAHRAGA DI SMP NEGERI KOTA BENGKULU
Authors: Oktaviana Liza , Sugihartono Tono , Sutisyana Ari
Published: August 2019

AbstrakPenelitian ini bertujuan untuk mendeskripsikan tentang implementasi kebijakan kelas olahraga di SMP Negeri Kota Bengkulu. Permasalahan yang dikaji dalam penelitian ini adalah Bagaimanakah Implementasi Kebijakan Kelas Olahraga di SMP Negeri Kota Bengkulu. Jenis penelitian deskriptif analitik. Subjek Penelitian ini adalah kepala sekolah, pengurus, pelatih dan siswa kelas olahraga SMP Negeri 2, SMP Negeri 18 dan SMP Negeri 16 Kota Bengkulu. Teknik pengumpulan data menggunakan observasi, wawancara, dan dokumentasi. Analisis data dengan mereduksi data, penyajian data dan penarikan kesimpulan. Hasil penelitian dan pembahasan menunjukkan bahwa kebijakan kelas olahraga dimandatkan oleh Kemendikbud RI, implementasi kebijakan kelas olahraga belum sepenuhnya sesuai dengan panduan pelaksanaan kelas olahraga dapat dilihat dari belum adanya fasilitas khusus untuk kelas olahraga, minimnya dana, ketidakteraturan jadwal latihan kondisi fisik, kurangnya pengawasan dari pemerintah, sehingga bisa menghambat tercapainya tujuan kelas olahraga di SMP Kota Bengkulu. Kesimpulan dari penelitian ini menunjukkan bahwa implementasi kebijakan kelas olahraga di SMP Kota Bengkulu belum berjalan sebagaimana mestinya.Kata Kunci: Implementasi, Kebijakan Kelas Olahraga, SMPAbstractThis research aimed to describe about the implementation of sport class policy in SMP Bengkulu city The problem reviewed in this research was “How is the implementation of Sport Class Policy in SMP Negeri Kota Bengkulu?” This research was an analytical descriptive design. The subject of this research was headmaster, administrator, trainer and students in sport class of SMP Negeri 2, SMP Negeri 18 and SMP Negeri 16 Bengkulu city. collection technique used in this research was observation, interview, and documentation methods. file analysis used in this research was by reduction, resentation and taking conclusion. The result and discussion showed that sport class policy was mandated by Kemendikbud RI. The implementation of sport class policy was not fully appropriate with the guidance of implementing sport class that can be seen from special facilities for sport class was not yet exist, lack of funds, irregularity of physical condition training schedule,and lack of government control, so it can inhibit the goals achievement of sport class in SMP Bengkulu city. The conclusion of this research showed that the implementation of sport class policy in SMP Bengkulu city was not yet running as it should be.Keywords: Implementation, Sport class policy, SMP
PERBEDAAN HASIL LATIHAN SENAM POCO-POCO OLAHRAGA MENGGUNAKAN METODE KONVENSIONAL DAN INSTRUKSIONAL SISWA LAKI-LAKI DAN PEREMPUANDI SDN 75 KOTA BENGKULU
Authors: Canggih Hidayah Mustika , Sugihartono Tono
Published: August 2019

ABSTRAKPenelitian ini bertujuan untuk mengetahui Perbedaan hasil Latihan penguasaan Senam Poco-Poco Olahraga Menggunakan Metode Konvensional dan Instruksional Siswa Laki-Laki Dan Perempuan Di SDN 75 Kota Bengkulu. Metode yang digunakan dalam penelitian ini adalah metode eksperimen. Sampel berjumlah 40 orang, dengan desain yang digunakan adalah two group Pre test-post test design. Instrumen penelitian ini untuk mengetahui Perbedaan Hasil Latihan Senam Poco-Poco Olahraga menggunakan metode konvensional dan instruksional siswa laki-laki dan perempuan. Teknik analisis data menggunakan uji ANOVA. Hasil peneliti ini diperoleh f-hitung 38.70 lebih besar dari f-tabel 2.86, artinya ada perbedaan yang signifikan dari Hasil Latihan Senam Poco-Poco Olahraga Menggunakan Metode Konvensional dan Instruksional Siswa Laki-Laki Dan Perempuan Di SDN 75 Kota Bengkulu. Artinya dari kedua kelompok metode konvensional dan intruksional, metode intruksional adalah metode yang lebih baik. Pada kelompok metode konvensional dan intruksional siswa perempuan lebih baik dari pada siswa laki-laki. Siswa laki-laki metode intruksional lebih baik dari pada siswa laki-laki metode konvensional.Kata Kunci : Konvensional, Intruksional, Senam Poco-Poco OlahragaABSTRACTThis study aims to determine the difference results of exercise Poco-Poco Gymnastics Using Conventional Methods and Instructional Students Boys And Girls In SDN 75 Bengkulu City. The method used in this research is the experimental method. The sample is 40 people, with the design used is two group Pre test-post test design. The instrument of this research is to know the difference of Poco-Poco Gymnastic Exercise Result using conventional and instructional method of boys and girls students. Data analysis technique used ANOVA test. The result of this research is obtained f-count 38.70 bigger than f-table 2.86, meaning there is significant difference from Poco-Poco Sport Gymnastic Exercise Using Conventional and Instructional Method of Boys and Girls Students at SDN 75 Kota Bengkulu. This means that from both groups of conventional and intruksional methods, the intruksional method is the better method. In the group of conventional and instructional methods Girls students are better than Boys students. Students Boys methods are better than conventional Boys students.Keywords: Conventional, Instructive, Poco-Poco Gymnastics Sport
PENERAPAN MODEL PEMBELAJARAN PROBLEM POSING TIPE POST SOLUTION POSING UNTUK MENINGKATKAN HASIL BELAJAR SISWA KELAS VIII DI SMP NEGERI 01 BENGKULU TENGAH
Authors: Wulandari Hayatri , Susanta Agus , S M Fachruddin
Published: August 2019

Penelitian ini merupakan Penelitian Tindakan Kelas (PTK). Penelitian ini bertujuan untuk mengetahui cara menerapkan pendekatan problem posing tipe post solution posing untuk meningkatkan hasil belajar siswa. Tahap-tahap yang digunakan dalam PTK yaitu perencanaan, pelaksanaan, pengamatan, dan refleksi. Subjek dalam penelitian ini adalah siswa kelas VIIIi SMP Negeri 01 Bengkulu Tengah yang berjumlah 30 siswa. Peningkatan  hasil belajar siswa dapat dilihat dari nilai rata-rata siswa dan ketuntasan belajar klasikal dari siklus I hingga siklus III, yaitu 61.58; 72.98; 77.41 dan 56,67%; 73,33%; 83,33%. Hasil belajar siswa dapat ditingkatkan dengan cara : siswa berlatih  membuat soal yang lebih mudah dipahami dan sesuai kemampuan siswa sendiri dengan mengubah angka, informasi yang diketahui, informasi yang ditanya, mengubah nama gambar, mengubah bentuk gambar, dan mengubah cerita soal berdasarkan soal semula.Kata Kunci: Model Problem Posing, hasil belajar siswa
UPAYA MENINGKATKAN AKTIVITAS BELAJAR MATEMATIKA SISWA KELAS VII SMP NEGERI 4 KOTA BENGKULU DENGAN PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE TEAM ASSISTED INDIVIDUALIZATION (TAI)
Authors: Kurniawati Yuni , Yensy Nurul Astuty , Herawaty Dewi
Published: August 2019

Abstrak Penelitian ini bertujuan untuk mengetahui bagaimana upaya meningkatkan aktivitas belajar matematika siswa dengan menerapkan model pembelajaran kooperatif tipe Team Assisted Individualization (TAI). Metode yang diterapkan adalah Penelitian Tindakan Kelas (PTK) dengan subjek 36 siswa kelas VII 7 SMP Negeri 4 Kota Bengkulu semester ganjil tahun ajaran 2016/2017. Penelitian ini dikatakan berhasil jika hasil observasi aktivitas siswa dalam pelaksanaan pembelajaran berada pada kriteria baik dengan interval  23,34 ?  ? 30. Berdasarkan data dari lembar observasi aktivitas siswa menunjukkan terjadi peningkatan aktivitas belajar siswa yang dilakukan dengan cara siswa dibentuk kelompok belajar yang heterogen, memberikan lembar materi dan latihan-latihan kemampuan, siswa saling mengoreksi hasil pekerjaan teman satu kelompoknya, siswa diberikan kesempatan untuk bertanya dan juga menyampaikan pendapat. Peningkatan aktivitas belajar siswa dapat dilihat dari rata-rata hasil observasi aktivitas belajar siswa siklus I sampai siklus III yaitu 17,17; 20,17; 25,17. AbstractThis study aims to find out how efforts to improve student’s learning activity by apply cooperative learning model type Team Assisted Individualization (TAI). The method applied  Classroom Action Research (CAR) consisted of 36 students of class VII 7 SMP Negeri 4 Kota Bengkulu odd semester of academic year 2016/2017. This study was to be successful if the results of student activity observation in the implementation of learning had on the good criteria with the interval 23,34 ? ? 30. Based on the data from the observation sheet of student activity showed an increase in student learning activity conducted by students formed heterogeneous learning groups , giving material sheets and ability exercises, the student corrected each other's work, the student were given the opportunity to ask questions and also express their opinions. The increase of student learning activity can be seen from the average of observation result of student learning activity cycle I to cycle III had 17,17; 20,17; 25,17.
UPAYA MENINGKATKAN HASIL BELAJAR SISWA DENGAN PENERAPAN MODEL PEMBELAJARAN COOPERATIVE SCRIPT PADA MATERI LINGKARAN
Authors: Sari Yuliana Puspita , Rusdi Rusdi , Muchlis Effie Efrida
Published: August 2019

Penelitian ini bertujuan untuk mengetahui cara penerapan model pembelajaran cooperative script untuk meningkatkan hasil belajar siswa pada materi lingkaran di SMP Negeri 1 Kota Bengkulu. Jenis penelitian yang dilaksanakan adalah Penelitian Tindakan Kelas (PTK) dengan teknik pengumpulan data melalui tes hasil belajar. Subjek dalam penelitian ini adalah siswa kelas VIII.6 SMP Negeri 1 Kota Bengkulu tahun ajaran 2016/2017 yang berjumlah 31 orang. Hasil penelitian ini menunjukkan bahwa penerapan  model kooperatif tipe cooperative script  dapat meningkatkan hasil belajar matematika siswa. Peningkatan hasil belajar siswa dapat dilihat dari peningkatan nilai rata-rata siswa dari siklus I hingga siklus III yaitu : 69,06; 76,4; 86,9 dengan persentase ketuntasan belajar klasikal dari siklus I hingga siklus III yaitu: 28,13%, 40%, 87,09%. Hasil belajar siswa dapat ditingkatkan dengan cara peserta didik membuat ringkasan dan mengembangkan ringkasan dengan bahasa yang lebih sederhana, membimbing dalam kegiatan eksplorasi dan mengerjakan latihan dan memberi motivasi.
ESTIMATE OF EFFICIENCY OF PSYCHOSOCIAL TECHNOLOGIES IN THE WORK WITH PREGNANT WOMEN STUDYING AT THE UNIVERSITY
Authors: Shimanovskaya Y V , Kozlovskaya S N , Sarychev A S
Published: August 2019

Psychosocial technology is a set of interrelated actions to provide social support and primary psychological assistance aimed at increasing the value of family and motherhood in the minds of pregnant women, promotional moral education of future mothers, and promotion of mental and physical health. The purpose of the psychosocial approach is to maintain a balance between the intersystem relations influence on the life and inner mental life of a person. The paper presents test results of psychological state correction of pregnant women group, during training at the university using psychosocial technology. To study the psychological characteristics of pregnant women and assess the effectiveness of remedial work techniques aimed at studying of women's psychological and emotional state and their experiences of pregnancy style were used. Primary diagnosis of pregnant women according to the methods of research, allowed us to determine the following: 50 % of women did not plan their pregnancy in the period of study; in 70 % pregnancy was unexpected or unplanned; 35 % of pregnant women were planning to terminate a pregnancy; 25 % of parents were against their daughter's pregnancy; 59 % did not have the skills of care for the baby; 25 % planned to take delivery after a sabbatical, and later continue their education at the university; 17 % were married or cohabited with her husband - student. The follow-up study was carried out at the end of rehabilitative training with pregnant women. It has been found that the use of psychosocial technology in work with a pregnant woman led to stabilization of the general emotional background and allowed to focus on the child-bearing and prepare for childbirth productively. Visiting remedial classes, pregnant women received psychosocial support, understanding and additional knowledge.
PROVISION OF DIFFERENT AGE-GROUP POPULATIONS OF ARKHANGELSK CITY WITH VITAMIN D
Authors: Malyavskaya S I , Kostrova G N , Lebedev A V , Golysheva E V
Published: August 2019

Vitamin D deficit is a worldwide recognized health problem due to its role in pathogenesis and progression of different diseases. The study of provision different age-group populations living in the Arctic and subarctic regions with vitamin D is of special interest because the risk of vitamin D deficit is stipulated by low insolation level is worsen by extreme climatic and geographic factors. Objective: to estimate provision of Arkhangelsk city age-group populations with vitamin D. Methods: 25-OH vitamin D blood serum concentration was estimated in a cross-sectional (instant) uncontrolled study carried out among Arkhangelsk city citizens of both sexes in during spring-autumn period between 2013 and 2014. Moderate deficit (deficiency) was estimated at the level of 25 (OH) D within the range of 20 - 30 ng/ml, deficit within the range of 10 - 19 ng/ml and severe deficit less than 10 ng/ml respectively. Results: children under the age of 3 (n = 155), schoolchildren at the age of 6 - 7 (n = 80), adolescents at the age of 13 - 15 (n = 367), university students at the age of 18 - 22 (n = 260), adults at the age of 24 - 60 (n = 85) were included in the study. Vitamin D deficiency was found in 38 (25 %), 16 (20 %), 71 (19 %), 36 (32 %) and 35 (41 %) people. Deficit was found in 35 (23 %), 39 (49 %), 249 (66 %), 103 (40 %) and 25 (29 %) people and severe deficit was found in 12 (8 %), 18 (22 %), 52 (14 %), 22 (8 %) and 3 (4 %) of people. Conclusion: high frequency of vitamin D deficit of various intensity was revealed in all age-group populations living in Arkhangelsk city. Study results indicate the necessity to develop and implement target regional and all-Russian prevention programmes as well as early diagnosis and correction of vitamin D deficit and deficit-related disorders in the Russian Federation.
ELEMENTAL STATUS OF STUDENTS OF DIFFERENT SOCIAL GROUPS
Authors: Notova S V , Larjushina I E , Kiyaeva E V , Tsypin A P , Ermakova N V
Published: August 2019

The study of some features of the ultimate hair composition of youth-students of different social groups was been carried out (students from couple families and orphan students). Evaluation of the ultimate hair composition was carried out by inductive coupled plasma-atomic emission spectroscopy. The samples analysis was carried out at 25 chemical elements. Excessive content of iron and lithium and also cobalt and selenium deficiency were revealed in all students compared with the average Russian parameters. Excessive content of magnesium and zinc were peculiar to orphan-students. Some differences between the groups for both the individual elements and elements ratios have been found. The sodium (1.7 times; р=0,006), potassium (3.2 times; р=0,019) and aluminum (1.4 times; р=0,006) content were significantly higher in the hair of couple-family students but the content of selenium (р=0,050) was lower. As a result of higher potassium content in this group, content of Ca/K and Na/K (5.4 and 1.4 times respectively) was significantly lower. The correlation analysis showed a close relationship between the content of calcium and magnesium, as well as iron and manganese in hair of students of both groups. The study results can be applied in the development of modern non-invasive diagnostic techniques.
Konsep Jual Beli Model Dropshipping Prespektif Ekonomi Islam
Authors: Nubahai Labib
Published: August 2019

Salahsatu sistem jual beli online yang populer dikalangan masyarakat saat ini adalah sistem jual beli dengan menggunakan konsep dropshipping. Jual beli model dropsipping ini melibatkan tiga elemen, yaitu suplier, dropshipper dan konsumen, dimana dropshipper biasanya meakukan penjualan barang yang didapat dari suplier dengan memanfaatkan perkembangan teknologi dan tidak perlu menyetok untuk menjual barang kepada konsumen. Studi ini membahas mengenai konsep jual beli model dropshipping prespektif fiqh. Metodologi yang digunakan dalam studi ini adalah library method. Hasil dari studi ini menunjukkan bahwa transaksi jual beli model dropshipping ini telah memenuhi rukun akad dalam syariah. Sedangkan dari sisi kepemilikan atas objek barang dalam praktik jual beli dropshipping memiliki dua pendapat, pendapat pertama diperbolehkan, dengan syarat penjual telah mendapatkan izin dari supplier dan dapat mengadakan barang yang akan diperjual belikan, karena pada prinsipnya penjual dalam transaksi sistem dropshipping ini adalah wakil bagi pemiliknya. Pendapat kedua dilarang, karena barang belum sepenuhnya milik penjual dan barang masih ditangan pemiliknya.
Hak Puasa Bagi Istri Yang Tanpa Izin Suami : Analisis Hadis
Authors: Taqiyuddin Hafidz
Published: August 2019

Kewajiban dan hak suami dan istri diatur dalam Islam, termasuk di antaranya diatur dalam hadis Nabi Saw sebagai bagian daripada dasar hukum Islam. Di antara hal yang diatur dalam hadis terkait hal tersebut adalah tentang puasa istridanpa izin suami. Kualitas sanad dan matan tentang puasa istri tanpa izin suami, baik hadis yang diriwayatkan oleh Abu Hurayrah maupun hadis yang diriwayatkan Abu Sa‟id al-Khudry merupakan hadis-hadis shahih. Dengan demikian hadis-hadis tersebut yang dapat dijadikan sandaran hukum. Adapun maksud dari tidak dibolehkannya istri melakukan puasa tanpa izin suami adalah bahwa seorang istri tidak diperkenankan berpuasa tanpa izin suaminya dengan syarat-syarat berikut, yaitu: pertama, puasa yang hendak dilakukan adalah puasa Sunnah. Kedua, puasa istri dilakukan ketika suami tidak bepergian.
The Scottish Idealists: Absolute Idealism and Personal Idealism
Authors: Keefe Jennifer
Published: August 2019

From the mid-nineteenth century to the early twentieth century British Idealism was a leading school of philosophical thought and the Scottish Idealists made important contributions to this philosophical school. In Scotland, there were two types of post-Hegelian idealism: Absolute Idealism and Personal Idealism. This article will show the ways in which these philosophical systems arose by focusing on their leading representatives: Edward Caird and Andrew Seth Pringle-Pattison.
Optimizing a Bi-Objective Mathematical Model for Minimizing Spraying Time and Drift Proportion
Authors: Nadeem Muhammad , Diallo Claver , Nguyen-Quang Tri , Venkatadri Uday , Havard Peter
Published: August 2019

The global agriculture sector faces many challenges in its mission to meet the increasing demand for food and fiber. Climate change, increasing population growth, emergence of crop diseases, damage to crops from rodents and critters, and shrinking farming land in some regions are among these challenges. Application of agrochemicals has proven to be an efficient answer to some of these challenges. However, the impacts of these products on human health and the environment combined with the increased requirement for sustainable farming requires the development of optimal spraying practices that would balance out all interests and concerns. In this paper, a mathematical model is developed to jointly minimize spraying time and drift losses. The obtained bi-objective mixed integer nonlinear programming model is solved for a case study example published in the crop protection literature. Optimal solutions are obtained using the weighted sum method and the epsilon-constraint approach. The results showed that valid and reasonable solutions can be obtained by selecting the appropriate combination of boom height, nozzle spacing, nozzle type, and tractor travel speed. Useful insights are obtained through various computational experiments.
Applying Semantic Network Analysis to Develop User Experience Assessment Model for Smart TV
Authors: Lim Ji Hyoun , Rhie Ye Lim , Park Jaehyun
Published: August 2019

The user experience (UX) concept has widely been adopted in the field of development and evaluation of products and services. One reason behind this emerging trend is the limitation in traditional usability evaluation methods (UEMs), which emphasizes performance measures such as task completion time and error rate. To overcome the limitation, users’ perceived value must be set to reflect users’ various experiences. In order to address this issue, this study proposes a network analysis-based method to investigate a value structure to assess the level of user experience in using a product. Gesture interaction on a smart TV is used as a case study to demonstrate the process of obtaining a quantified value structure from the transcriptions of users’ in-depth interview. A major contribution of this study lies in the transformation from qualitative data to a quantified value structure. Product or service designers, in the industrial field, can develop value structure based on network analysis when evaluating their design alternatives within a properly fitted evaluation framework.
A Novel Self-Interference Cancellation Method Using an Optimized LMS Algorithm in CCFD Systems for a 5G Communication Network
Authors: Sun Zeng-You , Zhao Yu-Jie
Published: August 2019

The Co-frequency Co-time Full Duplex (CCFD) is a key concept in 5G wireless communication networks. The biggest challenge for CCFD wireless communication is the strong self-interference (SI) from near-end transceivers. Aiming at cancelling the SI of near-end transceivers in CCFD systems in the radio frequency (RF) domain, a novel time-varying Least Mean Square (LMS) adaptive filtering algorithm which is based on step-size parameters gradually decrease with time varying called the DTV-LMS algorithm is proposed in this paper. The proposed DTV-LMS algorithm in this paper establishes the non-linear relationship between step factor and the evolved arct-angent function, and using the relationship between the time parameter and error signal correlation value to coordinately control the step factor to be updated. This algorithm maintains a low computational complexity. Simultaneously, the DTV-LMS algorithm can also attain the ideal characteristics, including the interference cancellation ratio (ICR), convergence speed, and channel tracking, so that the SI signal in the RF domain of a full duplex system can be effectively cancelled. The analysis and simulation results show that the ICR in the RF domain of the proposed algorithm is higher than that in the compared algorithms and have a faster convergence speed. At the same time, the channel tracking capability has also been significantly enhanced in CCFD systems.
Selection of Co-Belonging Ceramic Fragments from Archaeological Excavations and Their Location in Vase Bodies from Thermoremanent Magnetization
Authors: Ntoukakis Markos , Pantinakis Apostolos , Vafidis Antonios , Markopoulos Theodoros
Published: August 2019

Selection of co-belonging fragments from the numerous ceramic findings of an archaeological excavation based exclusively on the experience and patience of the conservators remains a difficult process of questionable effectiveness. While the screening of the fragments is a central prerequisite and the most important stage of the process of vase reconstruction, established methods based on scientific criteria and guaranteed efficiency for the detection of co-belonging ceramic fragments suggested in the bibliography do not exist. On the contrary, for methods dealing with the assembly of vases from co-belonging fragments, which is a secondary process that can be done more easily and effectively in an empirical way, there exist numerous studies based on fragment morphology. However, even these are also not implemented because of the time requirements, sheer volume and complexity of the proposed methods, in order for them to be applicable in practice. The proposed methods in this paper are based on thermoremanent magnetization (A/m), which is calculated from the weak magnetic field measurements by a fluxgate-sensor/magnet apparatus forming a three-dimensional orthogonal system. Experimental measurements from fragments of six vases show that the magnetization magnitude of co-belonging fragments display similar values, despite the magnetic anisotropy of the ceramic material, since these belong to vases made of the same clay and fired under the same conditions. This is the criterion for finding ceramic fragments of the same vase from archaeological excavations. The thermoremanent magnetism directionality of fragments, which is aligned along the geomagnetic field at the same place and time during the vase firing process, as it is configured by their rotational symmetry, defines the position of the fragments on the body of the six vases. The shape of the original vase can be reconstructed when only a few non adjacent fragments are available. The proposed measurement apparatus can be used for the construction of a useable portable magnetometer specialized for ceramic surface measurements to achieve the above objectives.
Special Issue on Precision Dimensional Measurements
Authors: Fan Kuang-Chao , Chen Liang-Chia
Published: August 2019

Precision dimensional measurements always play the critical role in workshop quality control [...]
Multiobjective Fractional Symmetric Duality in Mathematical Programming with (C,Gf)-Invexity Assumptions
Authors: Dubey Ramu , Mishra Lakshmi Narayan , Cesarano Clemente
Published: August 2019

In this paper, a new class of ( C , G f ) -invex functions introduce and give nontrivial numerical examples which justify exist such type of functions. Also, we construct generalized convexity definitions (such as, ( F , G f ) -invexity, C-convex etc.). We consider Mond–Weir type fractional symmetric dual programs and derive duality results under ( C , G f ) -invexity assumptions. Our results generalize several known results in the literature.
Systematic FTIR Spectroscopy Study of the Secondary Structure Changes in Human Serum Albumin under Various Denaturation Conditions
Authors: Usoltsev Dmitrii , Sitnikova Vera , Kajava Andrey , Uspenskaya Mayya
Published: August 2019

Human serum albumin (HSA) is the most abundant protein in blood plasma. HSA is involved in the transport of hormones, fatty acids, and some other compounds, maintenance of blood pH, osmotic pressure, and many other functions. Although this protein is well studied, data about its conformational changes upon different denaturation factors are fragmentary and sometimes contradictory. This is especially true for FTIR spectroscopy data interpretation. Here, the effect of various denaturing agents on the structural state of HSA by using FTIR spectroscopy in the aqueous solutions was systematically studied. Our data suggest that the second derivative deconvolution method provides the most consistent interpretation of the obtained IR spectra. The secondary structure changes of HSA were studied depending on the concentration of the denaturing agent during acid, alkaline, and thermal denaturation. In general, the denaturation of HSA in different conditions is accompanied by a decrease in α-helical conformation and an increase in random coil conformation and the intermolecular β-strands. Meantime, some variation in the conformational changes depending on the type of the denaturation agent were also observed. The increase of β-structural conformation suggests that HSA may form amyloid-like aggregates upon the denaturation.
Evo-Devo Algorithms: Gene-Regulation for Digital Architecture
Authors: Navarro-Mateu Diego , Cocho-Bermejo Ana
Published: August 2019

The majority of current visual-algorithmic architecture is constricted to specific parameters that are gradient related, keeping their parts’ relation fixed within the algorithm, far away from a truly parametric modeling with a flexible topology. Recent findings around genetics and certain genes capable of shape conditioning (development) have succeeded in recovering the science of embryology as a valid field that connects and affects the evolutionary ecosystem, showing the existence of universal mechanisms that are present in living species, thus describing powerful strategies for generation and emergence. Therefore, a new dual discipline is justified: Evolutionary developmental biology science. Authors propose the convergence of genetics algorithms and simulated features from evolutionary developmental biology into a single data-flow that will prove itself capable of generating great diversity through a simple and flexible structure of data, commands, and polygonal geometry. For that matter, a case study through visual-algorithmic software deals with the hypothesis that for obtaining a greater emergence and design space, a simpler and more flexible approach might only be required, prioritizing hierarchical levels over complex and detailed operations.
Preparation, Stability and Local Piezoelectrical Properties of P(VDF-TrFE)/Graphene Oxide Composite Fibers
Authors: Silibin Maxim , Karpinsky Dmitry , Bystrov Vladimir , Zhaludkevich Dzmitry , Bazarova Marina , Vaghefi P. Mirzadeh , Marques P. A. A. P. , Singh Budhendra , Bdikin Igor
Published: August 2019

The unprecedented attributes such as biocompatibility and flexibility of macromolecular piezoelectric polymer has triggered an immense interested in scientific society for their potential exploitation in implantable electronic devices. In the present article, a theoretical and experimental investigation is done to explore the polarization behavior of composite fibers based on copolymer poly-trifluoroethylene P(VDF-TrFE) and graphene oxide (GO) with varying composition of the components is explored for its possible application in bioelectronic devices. Electromechanical properties of the PVDF/GO nanofibers were investigated using piezoresponse force microscopy (PFM) method. The switching behavior, charge states, and piezoelectric response of the fibers were found to depend on the concentration of GO up to 20%. Theoretical models of PVDF chains, interacting with Graphene/GO layers has been used to explore the evolution of piezoresponse in the composite fibers. In order to compute piezoelectric coefficients, the behavior of composite in electrical fields has been modeled using software HyperChem. The experimental results are qualitatively correlated with a computed theoretical model.
iPla2β Deficiency Suppresses Hepatic ER UPR, Fxr, and Phospholipids in Mice Fed with MCD Diet, Resulting in Exacerbated Hepatic Bile Acids and Biliary Cell Proliferation
Authors: Ming Yanan , Zhu Xingya , Tuma-Kellner Sabine , Ganzha Alexandra , Liebisch Gerhard , Gan-Schreier Hongying , Chamulitrat Walee
Published: August 2019

Background: Group VIA calcium-independent phospholipase A2 (iPla2β) regulates homeostasis and remodeling of phospholipids (PL). We previously showed that iPla2β−/− mice fed with a methionine-choline-deficient diet (MCD) exhibited exaggerated liver fibrosis. As iPla2β is located in the endoplasmic reticulum (ER), we investigated the mechanisms for this by focusing on hepatic ER unfolded protein response (UPR), ER PL, and enterohepatic bile acids (BA). Methods: Female WT (wild-type) and iPla2β−/− mice were fed with chow or MCD for 5 weeks. PL and BA profiles were measured by liquid chromatography-mass spectrometry. Gene expression analyses were performed. Results: MCD feeding of WT mice caused a decrease of ER PL subclasses, which were further decreased by iPla2β deficiency. This deficiency alone or combined with MCD downregulated the expression of liver ER UPR proteins and farnesoid X-activated receptor. The downregulation under MCD was concomitant with an elevation of BA in the liver and peripheral blood and an increase of biliary epithelial cell proliferation measured by cytokeratin 19. Conclusion: iPla2β deficiency combined with MCD severely disturbed ER PL composition and caused inactivation of UPR, leading to downregulated Fxr, exacerbated BA, and ductular proliferation. Our study provides insights into iPla2β inactivation for injury susceptibility under normal conditions and liver fibrosis and cholangiopathies during MCD feeding.
The Influence of Facial Muscle Training on the Facial Soft Tissue Profile: A Brief Review
Authors: Abe Takashi , Loenneke Jeremy P.
Published: August 2019

In this review, we summarize recent literature investigating facial-exercise-induced changes in facial soft tissue. A literature search was performed in PubMed for the terms facial exercise, rejuvenation, muscle, skin, and aging. Four studies were identified from the search and were subject to further assessment. Four studies were included in our analysis. Two of the four studies included compared the experimental (training) group to a control group. The other two studies had no control group. The participants were mainly middle-aged women. Training conditions varied; neuromuscular electrical stimulation (NMES) was used in two studies, the other two studies used an oscillatory movement device and voluntary facial isometric exercise. Two studies measured facial muscle size using ultrasonography before and after 12 weeks of NMES or 8 weeks of oscillatory movement of the face. One study assessed the changes in facial skin elasticity in a single group following 8 weeks of facial isometric exercise, while one study measured strength of labial and lingual muscles before and following 4 weeks of NMES. We found two studies that reported facial-exercise-induced increases in facial muscle size in middle-aged women. It was also reported that facial skin function may improve following facial isometric exercise. Future research is needed to clarify how these changes link with facial rejuvenation. Compared to extremity muscles, the facial muscles are small in size, their shapes are complex, and the boundaries with other tissues may be unclear. Future study is also necessary to examine the reliability of measurements of the facial muscles.
dsCleaner: A Python Library to Clean, Preprocess and Convert Non-Intrusive Load Monitoring Datasets
Authors: Pereira Manuel , Velosa Nuno , Pereira Lucas
Published: August 2019

Datasets play a vital role in data science and machine learning research as they serve as the basis for the development, evaluation, and benchmark of new algorithms. Non-Intrusive Load Monitoring is one of the fields that has been benefiting from the recent increase in the number of publicly available datasets. However, there is a lack of consensus concerning how dataset should be made available to the community, thus resulting in considerable structural differences between the publicly available datasets. This technical note presents the DSCleaner, a Python library to clean, preprocess, and convert time series datasets to a standard file format. Two application examples using real-world datasets are also presented to show the technical validity of the proposed library.
Heteroskedasticity in One-Way Error Component Probit Models
Authors: Moussa Richard Kouamé
Published: August 2019

This paper introduces an estimation procedure for a random effects probit model in presence of heteroskedasticity and a likelihood ratio test for homoskedasticity. The cases where the heteroskedasticity is due to individual effects or idiosyncratic errors or both are analyzed. Monte Carlo simulations show that the test performs well in the case of high degree of heteroskedasticity. Furthermore, the power of the test increases with larger individual and time dimensions. The robustness analysis shows that applying the wrong approach may generate misleading results except for the case where both individual effects and idiosyncratic errors are modelled as heteroskedastic.
Localization of Moving Objects Based on RFID Tag Array and Laser Ranging Information
Authors: Ur Rehman Shafiq , Liu Ran , Zhang Hua , Liang Gaoli , Fu Yulu , Qayoom Abdul
Published: August 2019

RFID (radio-frequency identification) technology is rapidly emerging for the localization of moving objects and humans. Due to the blockage of radio signals by the human body, the localization accuracy achieved with a single tag is not satisfactory. This paper proposes a method based on an RFID tag array and laser ranging information to address the localization of live moving objects such as humans or animals. We equipped a human with a tag array and calculated the phase-based radial velocity of every tag. The laser information was, first, clustered through the DBSCAN (Density-Based Spatial Clustering of Applications with Noise) algorithm and then laser-based radial velocity was calculated. This velocity was matched with phase-based radial velocity to get best matching clusters. A particle filter was used to localize the moving human by fusing the matching results of both velocities. Experiments were conducted by using a SCITOS G5 service robot. The results verified the feasibility of our approach and proved that our approach significantly increases localization accuracy by up to 25% compared to a single tag approach.
DNILMF-LDA: Prediction of lncRNA-Disease Associations by Dual-Network Integrated Logistic Matrix Factorization and Bayesian Optimization
Authors: Li Yan , Li Junyi , Bian Naizheng
Published: August 2019

Identifying associations between lncRNAs and diseases can help understand disease-related lncRNAs and facilitate disease diagnosis and treatment. The dual-network integrated logistic matrix factorization (DNILMF) model has been used for drug–target interaction prediction, and good results have been achieved. We firstly applied DNILMF to lncRNA–disease association prediction (DNILMF-LDA). We combined different similarity kernel matrices of lncRNAs and diseases by using nonlinear fusion to extract the most important information in fused matrices. Then, lncRNA–disease association networks and similarity networks were built simultaneously. Finally, the Gaussian process mutual information (GP-MI) algorithm of Bayesian optimization was adopted to optimize the model parameters. The 10-fold cross-validation result showed that the area under receiving operating characteristic (ROC) curve (AUC) value of DNILMF-LDA was 0.9202, and the area under precision-recall (PR) curve (AUPR) was 0.5610. Compared with LRLSLDA, SIMCLDA, BiwalkLDA, and TPGLDA, the AUC value of our method increased by 38.81%, 13.07%, 8.35%, and 6.75%, respectively. The AUPR value of our method increased by 52.66%, 40.05%, 37.01%, and 44.25%. These results indicate that DNILMF-LDA is an effective method for predicting the associations between lncRNAs and diseases.
Identification of Maize CC-Type Glutaredoxins That Are Associated with Response to Drought Stress
Authors: Ding Shuangcheng , He Fengyu , Tang Wenlin , Du Hewei , Wang Hongwei
Published: August 2019

Global maize cultivation is often adversely affected by drought stress. The CC-type glutaredoxin (GRX) genes form a plant-specific subfamily that regulate plant growth and respond to environmental stresses. However, how maize CC-type GRX (ZmGRXCC) genes respond to drought stress remains unclear. We performed a TBLASTN search to identify ZmGRXCCs in the maize genome and verified the identified sequences using the NCBI conservative domain database (CDD). We further established a phylogenetic tree using Mega7 and surveyed known cis-elements in the promoters of ZmGRXCCs using the PlantCARE database. We found twenty-one ZmGRXCCs in the maize genome by a genome-wide investigation and compared their phylogenetic relationships with rice, maize, and Arabidopsis. The analysis of their redox active sites showed that most of the 21 ZmGRXCCs share similar structures with their homologs. We assessed their expression at young seedlings and adult leaves under drought stress and their expression profiles in 15 tissues, and found that they were differentially expressed, indicating that different ZmGRXCC genes have different functions. Notably, ZmGRXCC14 is up-regulated at seedling, V12, V14, V16, and R1 stages. Importantly, significant associations between genetic variation in ZmGRXCC14 and drought tolerance are found at the seedling stage. These results will help to advance the study of the function of ZmGRXCCs genes under drought stress and understand the mechanism of drought resistance in maize.
Understanding Statistical Hypothesis Testing: The Logic of Statistical Inference
Authors: Emmert-Streib Frank , Dehmer Matthias
Published: August 2019

Statistical hypothesis testing is among the most misunderstood quantitative analysis methods from data science. Despite its seeming simplicity, it has complex interdependencies between its procedural components. In this paper, we discuss the underlying logic behind statistical hypothesis testing, the formal meaning of its components and their connections. Our presentation is applicable to all statistical hypothesis tests as generic backbone and, hence, useful across all application domains in data science and artificial intelligence.
A New Approach for Exponential Stability Criteria of New Certain Nonlinear Neutral Differential Equations with Mixed Time-Varying Delays
Authors: Tranthi Janejira , Botmart Thongchai , Weera Wajaree , Niamsup Piyapong
Published: August 2019

This work is concerned with the delay-dependent criteria for exponential stability analysis of neutral differential equation with a more generally interval-distributed and discrete time-varying delays. By using a novel Lyapunov–Krasovkii functional, descriptor model transformation, utilization of the Newton–Leibniz formula, and the zero equation, the criteria for exponential stability are in the form of linear matrix inequalities (LMIs). Finally, we present the effectiveness of the theoretical results in numerical examples to show less conservative conditions than the others in the literature.
The Novel Nature Microtubule Inhibitor Ivalin Induces G2/M Arrest and Apoptosis in Human Hepatocellular Carcinoma SMMC-7721 Cells In Vitro
Authors: Liu Fangyuan , Lin Shiqi , Zhang Caiyun , Ma Jiahui , Han Zhuo , Jia Fujuan , Xie Weidong , Li Xia
Published: August 2019

Background and Objectives: Microtubules are an attractive target for cancer chemotherapy. Previously, we reported that Ivalin exhibited excellent anti-migration and anti-invasion activities in human breast cancer cells. Here, we examined the microtubule inhibition effect of Ivalin in human hepatocellular carcinoma SMMC-7721 cells. Materials and Methods: We used the 3-(4,5-dimethylthiazol)-2,5-diphenyltetrazolium bromide (MTT) assay to evaluate the cell proliferation effect of Ivalin and flow cytometry analysis to detect the apoptotic and cell cycle arrest effects of Ivalin. Immunofluorescence staining was used to measure the effect of Ivalin on the cytoskeleton network, and Western blotting was used to detect the expression levels of Bax, Bcl-2, Cdc2, phosphor-Cdc2, Cdc25A, Cyclin B1, and tubulin. Results: Ivalin induced cell cycle G2/M arrest and subsequent triggered apoptosis in human hepatocellular carcinoma SMMC-7721 cells. Furthermore, microtubules were shown to be involved in Ivalin-meditated apoptosis. In this connection, Ivalin treatment suppressed cellular microtubule network formation by regulating microtubule depolymerization. Moreover, Western blotting revealed Cdc25A and Cyclin B1 were upregulated in Ivalin-meditated cell cycle arrest. Subsequently, the induction of Bax (a proapoptotic protein) and reduction of Bcl-2 (an anti-apoptotic protein) expression were observed in Ivalin-treated SMMC-7721 cells. Conclusion: Ivalin induced microtubule depolymerization, then blocked cells in mitotic phase, and eventually resulted in apoptosis in SMMC-7721 cells. Collectively, these data indicate that Ivalin, acting as a novel inhibitor of microtubules, could be considered as a promising lead in anticancer drug development.