bluuebunny/crossref_metadata_2025_split huggingface dataset:
Análisis basado en parámetros QoS para el servicio VoIP sobre wireless en un campus universitario [Analysis based on QoS parameters for VoIP service on a wireless network within a university campus]
Authors: Olave Alexander , Valencia Luis Felipe , Cuéllar Juan Carlos 
Published: May 2019

Resumen Voz sobre IP, VoIP, es uno de los servicios con mayor desarrollo bajo plataformas inalámbricas; actualmente se ha iniciado su implementación como alternativa frente a la PSTN (red pública conmutada). El interés por VoIP radica en su relación costo-beneficio, ya que las organizaciones pueden utilizar la misma plataforma de su red de datos para transmitir voz. Por lo anterior, es importante que la organización tenga claro que, para garantizar el buen funcionamiento del servicio de VoIP, es decir para ofrecer QoS, se debe realizar la medición de parámetros que afectan la calidad del servicio como lo son: el retardo, la variación del retardo, el ancho de banda y la pérdida de paquetes. Este artículo analiza y valida los parámetros de QoS necesarios para garantizar el buen funcionamiento del servicio de VoIP sobre la red inalámbrica del campus de la Universidad Icesi. Se realizan pruebas en diferentes escenarios para mostrar que no solo factores como el retardo, y su variación, influyen en la calidad de servicio, sino que también la intensidad de la señal que recibe el cliente desde los puntos de acceso.Palabras Clave: Voz sobre IP, Calidad de servicio, Pérdida de paquetes, Retardo, Variación del Retardo, Intensidad de Señal. Abstract VoIP is one of the services that has been developing over under this type of wireless platforms and today has begun to implement as an alternative to the PSTN (Public Switched Telephone Network). The interest in VoIP is its cost-benefit ratio, and that organizations can use the same platform for their data network to transmit voice. Therefore it is important that the organization is clear that to ensure the smooth operation of the VoIP service, ie provide QoS, you must perform the measurement of parameters that affect the quality of service such as: delay, jitter, bandwidth, packet loss. In this paper we analyze and validate the QoS parameters needed to ensure the smooth operation of VoIP over wireless network on the Icesi University campus. We performed a series of tests in different scenarios to show that not only factors such as delay and jitter influencing the quality of service, but also the client signal strength received from of the AP (Access Point).Keywords: Voice over IP, Quality of service, Packet Loss, Delay, Delay variation, signal intensity.
Políticas editoriales
Authors: Vega Omar Antonio 
Published: May 2019

La Revista Ventana Informática, cuyo lema es: «Alguien está necesitando la información que usted está dispuesto a brindar, Usted está necesitando la información que alguien está dispuesto a brindar… Ventana Informática se mantiene abierta para que la información fluya en ambas direcciones», pone a consideración sus políticas editoriales, con la pretensión de lograr que esta publicación se convierta en un espacio abierto y disponible a todos quienes estudian, investigan y trabajan en las áreas de acción de la revista.
Elaboración de un ambiente virtual colaborativo usando eXe Learning para la enseñanza de Ciencias Naturales [Elaborating of a collaborative-virtual-environment by using eXe Learning for teaching of Natural Sciences]
Authors: Henao Bonilla Andrea , González Salcedo Luis Octavio 
Published: May 2019

Resumen A pesar del avance importante en el uso de las Tecnologías de la Información y la Comunicación (TIC) en la enseñanza de la educación media, la literatura muestra un amplio desarrollo en matemáticas, pero una gran limitación en otras temáticas como las ciencias naturales y las sociales. En el presente trabajo, se describe el desarrollo de una unidad didáctica basada en un ambiente virtual colaborativo usando eXe Learning, e incorporando diferentes estrategias educativas, con el objetivo de apoyar la enseñanza del curso de Biología, siendo el tema central la Reproducción en los Seres Vivos. Dos grupos de octavo grado, de una Institución Educativa, fueron evaluados sobre el conocimiento del tema mencionado. El análisis de varianza muestra que el grupo usuario del aplicativo obtiene un mejor rendimiento académico sobre el grupo patrón. Una evaluación tanto del aplicativo como de su Manual de Usuario, mostró que ambos son de fácil entendimiento y uso. Se concluye que las estrategias metodológicas basadas en TIC son un apoyo importante en el proceso de enseñanza-aprendizaje en el curso de Biología. Palabras Clave: Ambiente Virtual Colaborativo, TIC, eXe Learning, Ciencias Naturales, Biología. Abstract Despite significant progress in the use of Communication and Information Technology (CIT) in teaching secondary education, the literature shows a wide development in mathematics, but a limitation on other issues such as the social and natural sciences. In this paper, we describe the development of a teaching unit based on a collaborative-virtual-environment using by eXe Learning, and incorporating different educational strategies, in order to support the teaching of biology course, being the central theme in living beings reproduction. Two groups of eighth grade, of an educational institution, were evaluated on the above subject knowledge. The analysis of variance showed that the application user group obtained better academic performance over the non-user group. An evaluation both Applicative and its User’s Manual, showed that they are both easy to understand and use. It was concluded that the methodologies based on ICT are an important support in the biology course’s teaching-learning process. Keywords: Collaborative-virtual-environment, ICT, eXe Learning, Natural Sciences, Biology.
Penanaman Nilai-Nilai Karakter melalui Kegiatan Storytelling dengan Menggunakan Cerita Rakyat Sasak pada Anak Usia Dini
Authors: Ramdhani Sandy , Yuliastri Nur Adiyah , Sari Siti Diana , Hasriah Siti 
Published: May 2019

Penelitian ini bertujuan untuk menganalisis penerapan metode storytelling berbasis cerita rakyat sasak untuk menanamkan nilai-nilai karakter pada anak Taman Kanak-Kanak di TK Ummi Adniyah NW Sekarteja. Penelitian yang digunakan adalah penelitian kualitatif. Jenis Pendekatan yang digunakan adalah pendekatan deskriptif kualitatif. Teknik pengumpulan data adalah observasi, Wawancara, dan dokumentasi. Instumen pengumpulan data yang digunakan adalah peneliti, Lembar Observasi, dan wawancara. Uji keabsahan data dengan uji credibility, Uji Transferability, kebergantungan dependability dan kepastian confirmability. Proses analisis data dilakukan dengan menggunakan model analisis interaktif Miles & Huberman yaitu Data Collection, Data Display, Data Reduction, dan Conclusion Drawing. Hasil dari penelitian didapatkan kegiatan storytelling dengan menggunakan cerita rakyat mampu untuk menanamkan nilai-nilai karakter. Nilai-nilai karakter yang muncul diantaranya adalah karakter tanggung jawab, mandiri, jujur, religious, dan kerjasama. Karakter yang muncul merupakan sebuah akumulasi yang muncul dari perilaku anak-anak setelah mendengarkan cerita rakyat yang digunakan seperti “lelampaq Lendong Kaoq” dan “ Tegodek-godek dan Tetuntel-tuntel”
Kebun Buah Learning Media for Early Childhood Counting Ability
Authors: Ayuni Despa , Setiawati Farida Agus 
Published: May 2019

Children aged 5-6 years have four types of tasks in counting ability, which are to distinguish between bigger and smaller, calculations, number identification, and simple arithmetic. This study involved 22 children aged 5-6 years in Kindergarten, Sleman, Special District, Yogyakarta. This study used the quasy experiment method by using the experimental class and control class by giving different treatments. Children who participated in using interactive learning media by using a computer called Kebun Buah media and tested whether they can count various kinds of fruit. The results of research showed that Kebun Buah media affected counting ability on children aged 5-6 years, the results of post-test counting ability of children in the experimental class using Kebun Buah media increasedÂ to 88 in average while in the control class using a number card media obtained an average 78.9. This study was conducted by utilizing technology that can increase the implications of education in learning and improving counting ability of early childhood in the use of technological means in the classroom.
Pengaruh Model Pembelajaran dan Kemampuan Berpikir Kritis terhadap Pemahaman Sains Fisik
Authors: Dewi Ayu Citra , Hapidin Hapidin , Akbar Zarina 
Published: May 2019

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran dan kemampuan berpikir kritis terhadap pemahaman sains fisika pada kelompok B usia 5-6 tahun. Metode penelitian ini adalah eksperimen dengan desain treatment by level 2x2. Sampel penelitian ini terdiri dari 56 anak. Pengumpulan sampel menggunakan teknik stratified multistage cluster random sampling. Teknik analisis data adalah analisis varians dua jalur (ANAVA). Untuk menguji normalitas data menggunakan uji liliefors dan uji homogenitas menggunakan uji barlett. Hasil penelitian ini menunjukkan bahwa 1) Pemahaman sains fisika anak yang diajar dengan model pembelajaran quantum lebih tinggi daripada model pembelajaran contextual teaching and learning. 2) Terdapat pengaruh interaksi antara model pembelajaran dan kemampuan berpikir kritis terhadap pemahaman sains fisika. 3) Pemahaman sains fisika anak yang diajar dengan model pembelajaran quantum lebih tinggi daripada model pembelajaran contextual teaching and learning pada anak yang memiliki kemampuan berpikir kritis tinggi. 4) Pemahaman sains fisika anak yang diajar dengan model pembelajaran quantum lebih rendah daripada model pembelajaran contextual teaching and learning pada anak yang memiliki kemampuan berpikir kritis rendah.
Pengembangan Media Grafis untuk Meningkatkan Siaga Bencana Banjir
Authors: Purwani Annisa , Fridani Lara , Fahrurrozi Fahrurrozi 
Published: May 2019

Jakarta adalah salah satu daerah di Indonesia yang sering terjadi bencana banjir sehingga adanya pengurangan resiko bencana. Salah satu upayayang dapat dilakukan adalah memberikan bekal pengetahuan siaga bencana banjir melalui pemberian fasilitas berupa media yang dapat digunakan guru untuk mempermudah pembelajaran siaga bencana banjir kepada peserta didik di sekolah. Penelitian ini dilakukan terkait dengan pengembangkan media grafis untuk meningkatkan siaga bencana banjir. Adapun populasi dalam penelitian ini adalah anak- anak usia 5-6 tahun di wilayah Jakarta Selatan. Studi ini menggunakan metode model ADDIE (Analyze, Design, Development, Implementation, and Evaluation) dengan teknik pengumpulan data melalui wawancara, observasi, Pretest dan post-test. Hasil uji efektifitas sig.(2-tailed) menunjukkan adanya perbedaan kesiagaan pada anak sebelum dan sesudah penggunaan media grafis. Kesimpulan yang diperoleh adalah bahwa penggunaan media grafis efektif digunakan untuk meningkatkan siaga bencana banjir pada anak usia 5-6 tahun di Jakarta Selatan.
Pemerolehan Bahasa pada Anak Usia 3 Tahun
Authors: Salnita Yulia Eka , Atmazaki Atmazaki , Abdurrahman Abdurrahman 
Published: May 2019

Penelitian ini bertujuan untuk mendeskripsikan pemerolehan bahasa anak usia 3 tahun. Pemerolehan bahasa anak usia 3 tahun ini dikaji pada tataran fonologi, sintaksis, dan semantik. Data dalam penelitian ini adalah tuturan anak usai 3 tahun. Penelitian ini menggunakan rancangan deskriptif kualitatif. Tahap analisis data dalam penelitian ini ada tiga, yaitu reduksi, penyajian, dan penarikan kesimpulan. Hasil penelitian ini menunjukkan bahwa pada tataran fonologi, subjek penelitian belum bisa mengujarkan fonem /r/ dan /s/ dengan benar. Pada tataran sintaksis, subjek penelitian sudah mampu mengujarkan empat jenis kalimat, yaitu kalimat deklaratif, imperatif, interogatif, dan eksklamatif. Kata yang dikuasi anak adalah kata-kata yang dekat dengan lingkungan anak. Pada tataran semantik, semua ujaran anak mengandung makna denotatif.
Efektifitas metode simulasi dan feedback yang konstruktif dalam pelatihan cardiopulmonary respiratory untuk meningkatkan pengetahuan dan keterampilan mahasiswa
Authors: Sugiarto Sugiarto , Sundari Sri , Musharyanti Lisa 
Published: May 2019

Respiratory cardiopulmonary merupakan salah satu pengetahuan dan keterampilan yang harus dimiliki serta dikuasai oleh seorang mahasiswa keperawatan. pemberian feedback yang konstruktif pada metode simulasi perlu dilakukan kepada mahasiswaÂ agar termotivasi dalam memperbaiki diri serta dapat meningkatkan pengetahuan dan keterampilan mahasiswa. Tujuan dari penelitian ini untuk mengetahui peningkatanÂ pengetahuan dan keterampilan mahasiswa dalam metode simulasi dengan di berikan feedback yang konstruktif. Metode penelitian ini adalah Quasi Eksperimen dengan desain penelitian pre test and post test with the control group . Jumlah responden pada penelitian ini yaitu 77 dengan 40 mahasiswa kelompok intervensi dan 37 kelompok kontrolÂ dengan teknik random sampling. Responden diberikan intervensi berupaÂ feedback yang konstruktif. Hasil penelitian dengan menggunakanÂ Â idependen sampel t-test. terlihatÂ adanya pengaruh yang signifikan pada pemberian feedback yang konstruktifÂ mahasiswa sebelum dan sesudah pemberian intervensi dengan hasil yang didapatkan p-value <0,05. Diharapkan pemberian feedback terus dilakukan dalam meningkatkan motivasi mahasiswa.
METODOLOGIA DA PROBLEMATIZAÇÃO NO CURSO DE PEDAGOGIA: UM RELATO DE EXPERIENCIA
Authors: Bessa Sonia , Anderson dos Santos Castro Elton , Rodrigues Gonçalves Jadir 
Published: May 2019

Esse relato é um estudo de natureza qualitativa descritiva com o objetivo de vivenciar a metodologia de problematização na disciplina de Psicologia da educação, com estudantes do curso de pedagogia de universidade pública. Participaram 37 estudantes do 1o ano. O trabalho com os estudantes foi desenvolvido com referencia nos trabalhos de Neusi Berbel. Os estudantes vivenciaram novas experiências e depararam-se com um ensino desafiador, no contato direto com a realidade. Envolveram-se de forma reflexiva, critica e criativa no processo de ensino aprendizagem. Verificou-se um comprometimento que privilegiou a investigação e a reflexão da atividade pedagógica. A MP se apresenta como uma alternativa consistente para a aprendizagem e para a construção da identidade profissional docente.
Are specific players more likely to be involved in high-magnitude head impacts in youth football?
Authors: Gellner Ryan A. , Campolettano Eamon T. , Smith Eric P. , Rowson Steven 
Published: May 2019

OBJECTIVEYouth football attracts approximately 3.5 million participants every year, but concern has recently arisen about the long-term effects of experiencing repetitive head accelerations from a young age due to participation in football. The objective of this study was to quantify total involvement in high-magnitude impacts among individual players in youth football practices. The authors explored the relationship between the total number of high-magnitude accelerations in which players were involved (experienced either by themselves or by other players) during practices and the number of high-magnitude accelerations players experienced.METHODSA local cohort of 94 youth football players (mean age 11.9 ± 1.5, mean body mass 50.3 ± 16.4 kg) from 4 different teams were recruited and outfitted with helmet-mounted accelerometer arrays. The teams were followed for one season each for a total of 128 sessions (practices, games, and scrimmages). All players involved in high-magnitude (greater than 40g) head accelerations were subsequently identified through analysis of practice film.RESULTSPlayers who experienced more high-magnitude accelerations were more likely to be involved in impacts associated with high-magnitude accelerations in other players. A small subset of 6 players (6%) were collectively involved in 230 (53%) high-magnitude impacts during practice, were involved in but did not experience a high-magnitude acceleration 78 times (21% of the 370 one-sided high-magnitude impacts), and experienced 152 (30%) of the 502 high-magnitude accelerations measured. Quarterbacks/running backs/linebackers were involved in the greatest number of high-magnitude impacts in practice and experienced the greatest number of high-magnitude accelerations. Which team a player was on was an important factor, as one team showed much greater head impact exposure than all others.CONCLUSIONSThis study showed that targeting the most impact-prone players for individualized interventions could reduce high-magnitude acceleration exposure for entire teams. These data will help to further quantify elevated head acceleration exposure and enable data-driven interventions that modify exposure for individual players and entire teams.
Prevalence of Dyskinesia and OFF by 30-Minute Intervals Through the Day and Assessment of Daily Episodes of Dyskinesia and OFF: Novel Analyses of Diary Data from Gocovri Pivotal Trials
Authors: Hauser Robert A. , Kremens Daniel E. , Elmer Lawrence W. , Kreitzman David L. , Walsh Ryan R. , Johnson Reed , Howard Robert , Nguyen Jack T. , Patni Rajiv 
Published: May 2019

Background: Parkinson’s disease (PD) patients using levodopa commonly develop dyskinesia and OFF episodes that reduce quality of life. Objective: Evaluate prevalence of troublesome dyskinesia and OFF through the day, assessed by 30-minute intervals, as well as the mean number and duration of troublesome dyskinesia and OFF episodes, transitions between PD states, and effects of Gocovri® (amantadine) extended release capsules on these episodes. Methods: Evaluate diary data from pooled Gocovri phase 3, placebo-controlled trials—analyzed for 17 hours following wake-up—at baseline and week 12. Results: Diaries were evaluable for 162 patients. At baseline, 67% of patients woke up OFF, with prevalence decreasing to 13% at 2 hours and then remaining relatively steady at ∼12% (range, 6–17%) across half-hour intervals thereafter. Troublesome dyskinesia prevalence rose steadily from 5% to 24% over the first 2 hours, then fluctuated between 20% and 44% through the rest of the waking day. At baseline, patients experienced a mean of 3.0 daily episodes of troublesome dyskinesia (average duration 2.0 hours each), and 2.2 daily episodes of OFF (average duration 1.1 hour each). At week 12, Gocovri-treated patients showed greater reductions than placebo in troublesome dyskinesia and OFF episodes per day (treatment difference: –1.0 episodes and –0.4 episodes, respectively) and average episode duration (treatment difference: –0.6 hours and –0.3 hours, respectively). Mean duration of individual episodes of ON without troublesome dyskinesia (Good ON) increased by 5.0 hours for Gocovri, compared with 2.0 hours for placebo. Patients taking Gocovri experienced 2.2 fewer transitions between states than patients taking placebo. Conclusions: Troublesome dyskinesia and OFF occurred in the morning and throughout the waking day. Gocovri-treated patients experienced fewer, shorter episodes of both troublesome dyskinesia and OFF, thereby increasing the duration of continuous Good ON episodes and reducing the frequency of transitions between motor states.
A pilot study of radiomics technology based on X-ray mammography in patients with triple-negative breast cancer
Authors: Zhang Hong-Xia , Sun Zong-Qiong , Cheng You-Gen , Mao Guo-Qun 
Published: May 2019

PURPOSE: To explore the radiomics features of triple negative breast cancer (TNBC) and non-triple negative breast cancer (non-TNBC) based on X-ray mammography, and to differentiate the two groups of cases. MATERIALS AND METHODS: Preoperative mammograms of 120 patients with breast ductal carcinoma confirmed by surgical pathology were retrospectively analyzed, which include 30 TNBC and 90 non-TNBC patients. The manual segmentation of breast lesions was performed by ITK-SNAP software and 12 radiomics features were extracted by Omni-Kinetics software. The differences of these radiomics features between TNBC and non-TNBC groups were compared, and the receiver operating characteristic (ROC) curve was used to determine the optimal cutoff value of each radiomics parameter for differentiating TNBC from non-TNBC, and the corresponding area under the curve (AUC), sensitivity and specificity were obtained. RESULTS: There were statistically significant differences for 4 radiomics features between TNBC and non-TNBC datasets ( P < 0.05). They were the roundness, concavity, gray average and skewness of breast lesions. Compared with non-TNBC, TNBC cases have following characteristics of (1) more round with the roundness of 0.621 vs. 0.413 ( P < 0.001), (2) more regular with the concavity of 0.087 vs. 0.141 ( P < 0.01), (3) higher density or gray average (67.261 vs. 56.842, P < 0.05), and (4) lower skewness (– 0.837 vs.– 0.671, P = 0.034). AUCs of ROC curves computed using features of the roundness and concavity were both larger than 0.70. CONCLUSION: Radiomics features based on X-ray mammography may be helpful to distinguish between TNBC and non-TNBC, which were associated with breast tumor histology.
ANALISIS YURIDIS PEMBERIAN KREDIT DENGAN JAMINAN SURAT KEPUTUSAN PENSIUN OLEH PT. BANK TABUNGAN PENSIUNAN NASIONAL, Tbk CABANG KEDIRI JAWA TIMUR
Authors: Suyadi Yagus , Hakim Aulia Rahman 
Published: May 2019

Penelitian ini bertujuan untuk : 1) Untuk mengetahui cara pengaturan dan prosedur pengikatan Surat Keputusan Pensiun sebagai jaminan kredit pensiunan di Bank BTPN Cabang Kediri yang dilakukan oleh pihak bank dengan pensiunan yang ditinjau dari hukum perikatan sebagaimana diatur dalam KUHPerdata. 2) Untuk mengetahui bentuk perlindungan hukum pensiunan PNS dalam perjanjian kredit dengan jaminan Surat Keputusan Pensiun di Bank BTPN Cabang Kediri apabila terjadi force majeur.
Metode pendekatan yang digunakan dalam penelitian ini adalah yuridis-empiris. Metode pendekatan yuridis empiris, yaitu suatu pendekatan pendekatan yuridis untuk menganalisis berbagai peraturan perundang- undangan yang berhubungan dengan pelaksanaan perjanjian kredit dengan jaminan Surat Keputusan Pensiun.
Hasil dari penelitian ini mengungkapkan bahwa pengikatan perjanjian kredit pensiun dan penyimpanan Surat Keputusan Pensiun sebagai dokumen kredit pensiun tidak menyalahi hukum perikatan. Hal ini dikarenakan Jaminan Surat Keputusan Pensiun PNS dapat dikatakan merupakan sebuah jaminan istimewa karena tidak termasuk jaminan fidusia, hak tanggungan maupun hipotek.
Kredit yang dijaminkan sebenarnya adalah manfaat pensiun yang diterima pensiunan yang mengambil kredit pensiun ini, oleh karena itu resiko tentang terjadinya force majeuryang dialami oleh debitur tidaklah berpengaruh terhadap kewajiban mengangsur kredit setiap bulannya.
COMPARISON OF CYNMETHEMOGLOBIN METHOD AND DIGITAL HAEMOMETER IN MEASURING HAEMOGLOBIN
Authors: P Mrs. Rajalakshmy. , A Dr. Lokeshmaran. 
Published: May 2019

Background: Anaemia is a global public health problem which affects both the developing and the developed countries , World-wide, more individuals have iron-deficiency anemia than any other health problem . The present study is to find the prevalence of anemia and to compare the effectiveness of two haemoglobin meter, Cynmethemoglobin and Digital Haemometer (Mission).
Methods: For this 60 public people from Puducherry Population, were their blood pressure, lifestyle practise was analysed, haemoglobin was tested in both Cynmethemoglobin Method and Digital Haemometer for all 60 population. Venous blood was collected to test Cynmethemoglobin method and capillary blood was taken to test in Digital Haemometer and the effectiveness was compared.
Results: In average 60 adult samples the median haemoglobin concentration using the Digital Haemometer was 12.8 g/dl and 12.0 g/dl with Cynmethemoglobin method. The prevalence of anemia was slightly higher when using Cynmethemoglobin method 73.3% (44) were 58.3 % (35) was seen in Digital Heamometer. Haemoglobin was analysed in both the method were the prevalence anemia the cynmethemoglobin method has higher prevalence of anaemia than the Digital haemometer method.