bluuebunny/crossref_metadata_2025 huggingface dataset:
MEDIA PEMBELAJARAN BAHASA INGGRIS DASAR MENGGUNAKAN MACROMEDIA FLASH 8 di TK KARTIKA 1.50 KECAMATAN SAIL KOTA PEKANBARU
Authors: Irawan Yuda , Wahyuni Refni , Herianto Herianto
Published: December 2019

Penelitian ini membahas tentang perancangan dan pembuatan Aplikasi Multimedia Pembelajaran Bahasa Inggris Dasar Berbasis Aplikasi Macromedia Flash 8 di TK Kartika 150 Kecamatan sail kota penyampaian materi pembelajaran bahasa inggris di tk kartika kecamatan sail kota pekanabru masih terkesan monoton. Dalam kegiatan belajar mengajar guru hanya mengandalkan buku, metode lisan dan guru tidak menggunakan media pendukung pembelajaran efektif dan kurang memperdayakan potensi siswa di tk. Dengan memanfaatkan perkembangan teknologi yaitu melalui PC/Laptop berbasis multimedia. PembuatanAplikasi Multimedia Bahasa inggris dasar untuk anak tk ini dengan menggunakan software berbasis macromedia flash 8. Pengembangan aplikasi ini menggunakan metode waterfall yang dimulai dari analisa kebutuhan sampai penerapan dan pemeliharaan sistem. Aplikasi ini menampilkan informasi tentang belajar bahasa inggris dasar yang berfokus pada materi pembelajaran mengenai materi nama sayuran, materi anggota tubuh, materi hewan, materi benda, dan warna. Aplikasi ini disertai dengan adanya game.Berdasarkan pada hasil uji coba, aplikasi ini dapat berjalan dengan baik pada perangkat berbasis multimedia dengan versi macromedia flash 8. Aplikasi multimedia ini meliputi pengenalan nama hewan, warna, tubuh, sayuran, benda dan permainan, sehingga aplikasi dapat menembah daya tarik penyampaian materi kepada siswa. Media pembelajaran interaktif ini akan membuat suasana belajar yang menyenangkan , menarik, komunikatif serta mudah dipahami murid.
SISTEM PENDUKUNG KEPUTUSAN PENERIMA BANTUAN SISWA MISKIN (BSM) DI SDN 005 BUKIT TIMAH DENGAN MENGGUNAKAN METODE ANALYTICAL HIERARCY PROCESS (AHP)
Authors: Rubiati Nur , Kurniawan Rahmad , Septiana Listri
Published: December 2019

SDN 005 Bukit Timah kota Dumai masih memilih dan mencatat secara merekomendasi calon penerimaan BSM, dan aplikasi pengolah angka (spreadsheet) yang belum berbasis database sehingga memungkinkan terjadinya redudansi data. Dengan dibangunnya sebuah sistem pendukung keputusan yang terkomputerisasi, maka subjektifitas dalam pengambilan keputusan dapat dikurangi dan diganti dengan pelaksanaan seluruh kriteria-kriteria sehingga penerima BSM yang layak yang akan terpilih. Pembuatan SPK ini diharapkan akan menyelesaikan permasalahan yang dihadapi dan sistem yang dibangun nantinya menggunakan kriteria-kriteria yang relevan terdiri dari 7 jenis kriteria yaitu: Alat Transportasi, Penghasilan orang tua,  kelas, Kepemilikan orang tua, Tanggungan orang tua, Jarak rumah, Pertimbangan lain (pertimbangan sekolah/usulan sekolah) sehingga hasil akhirnya siswa yang terpilih merupakan hasil penyeleksian dari siswa yang paling tepat untuk siswa SDN 005 Bukit Timah.

Kata kunci : Sistem Pendukung Keputusan, Bantuan Siswa Miskin, AHP
STRUKTUR DAN NILAI BUDAYA CERITA RAKYAT ANEUK JAMEE MALIMDIWA
Authors: Fitriandi Fitriandi
Published: December 2019

This study aimed to describe cultural values contained in the story. Thisresearch was qualitative research with descriptive method. Data collectiontechniques in this research was the study of the techniques of documentary.Cultural values found in this story was cultural values in relation to God,nature, society, other people and themselves.
PENGGUNAAN BAHASA PADA AKUN MEDIA SOSIAL INSTAGRAM LAMBE TURAH: ANALISIS WACANA KRITIS
Authors: Yulianti Andi Indah
Published: December 2019

AbstractThis paper is entitled "Penggunaan Bahasa pada Akun Media Sosial Instagram Lambe Turah: Analisis Wacana Kritis". The method used in this paper is descriptive qualitative method with the approach of critical discourse analysis of three dimensional model from Norman Fairclough. The purpose of this study is to describe the aspects of language, the relationship between Lambe Turah ideology with the linguistic aspects that are produced and describe the hegemony of Lambe Turah with the social situation underlying the language aspect used in representing the characters and news themes in Lambe Turah account. The results indicate that the linguistic aspect of diction, sentence use, and source selection in the direct quotes used by Lambe Turah has placed the characters in their content as negative representations.Keywords: Analysis of critical discourse; language; social media. AbstrakTulisan ini berjudul “Penggunaan Bahasa pada Akun Media Sosial Instagram Lambe Turah: Analisis Wacana Kritis”. Metode yang digunakan dalam tulisan ini adalah metode deskriptif kualitatif dengan pendekatan analisis wacana kritis model tiga dimensi Norman Fairclough. Tujuan dari penelitian ini adalah mendeskripsikan aspek-aspek kebahasaan, hubungan antara ideologi Lambe Turah dengan aspek kebahasaan yang dihasilkan dan mendeskripsikan hegemoni Lambe Turah dengan situasi sosial yang melatarbelakangi aspek kebahasaan yang digunakan dalam merepresentasikan tokoh dan tema pemberitaan dalam akun Lambe Turah. Hasil penelitian me­nunjukkan bahwa aspek kebahasaan berupa diksi, penggunaan kalimat, dan pe­milihan sumber dalam kutipan langsung yang digunakan Lambe Turah telah me­nempatkan tokoh-tokoh dalam isi pemberitaannya sebagai representasi yang negatif.Kata kunci:  Analisis wacana kritis; bahasa; media sosial.
MADRE SEBAGAI SIMBOL PEMAKNAAN ULANG ARTI RUMAH DAN KELUARGA DALAM CERPEN MADRE KARYA DEWI LESTARI
Authors: Wumu Wahyuni
Published: December 2019

Dalam berbagai bentuk karya sastra banyak ditemukan simbol-simbol atau tanda yang digunakan penciptanya untuk memberi arti yang lebih mendalam terhadap apapun itu yang menjadi objek karya sastra tersebut. Simbol dan tanda ini memiliki makna yang mewakili berbagai perasaan dan harapan manusia terhadap kehidupan. Hal inilah yang ingin dikemukakan dalam artikel ini. Penelitian ini menggunakan metode kualitatif, sehingga datanya berbentuk deskriptif yang berupa kata-kata tertulis (bahasa tulis). Cerpen Madre menceritakan sebentuk adonan roti yang berperan penting dalam kehidupan manusia yang terlibat dengannya, melampaui bentuknya sendiri yang hanya berupa adonan roti. Dewi Lestari dengan apik menghadirkan madre sebagai representasi berbagai harapan tentang arti rumah, keluarga, dan cinta bagi karakter-karakter dalam cerpennya.Kata kunci: simbol, tanda, Madre
Pitadas sobre tradição e inovação na cozinha contemporânea: por uma antropologia do cozinhar
Authors: Benemann Nicole Weber , Menasche Renata
Published: December 2019

Gastronomy and the kitchen participate in a structured process in cultural and symbolic practices that have references in broader social dynamics. Cooking and eating are synergistic steps in man's relationship with nature, as well as with his culture. Through observation of the work of Chef Massimo Bottura – portrayed in a documentary series produced by Netflix, entitled Chef’s Table – and of practices found in a professional kitchen studied in the city of Pelotas/RS, this paper analyzes issues pertinent to tradition and innovation in the gastronomic scenario. To achieve the objectives of the discussion, we used documentary analysis, literature review and ethnographic research. This work contributes to the debate on issues related to continuities, ruptures and coexistence generated and modified by the action of professional cooks.
O café nas interpretações de Monteiro Lobato e Celso Furtado
Authors: Santos Elisângela da Silva , Pinto Gustavo Louis Henrique
Published: December 2019

Coffee represented a fundamental system of production and socio-political-cultural organization in the history and trajectory of Brazilian political and social thought. This article analyses in a comparative way the opinions of Monteiro Lobato and Celso Furtado on the coffee economy and its implications for Brazilian society. Both authors understood coffee to be the basis of the agrarian vocation and the transition to modernization. Analyzing comparatively the literary perceptions of Monteiro Lobato and the economic interpretations of Furtado allows us to identify their different perspectives in building a mosaic of interpretations on the place of coffee in Brazilian history.
Effects of Sodium Chloride (NaCl) On Historical Bridges and Treatment with Bentonite
Authors: Işık Neşe
Published: December 2019

In this study, the effects of bentonite clay were investigated in the cleaning of the andesite stone samples used in the restoration of historical Çobandede Bridge and some historical buildings contaminated with sodium chloride salt. The stones of historical buildings are exposed to harmful salt effects for various reasons. Especially in regions where terrestrial climate dominates, the sodium chloride salt sprinkled on the icy roads for thawing may infiltrate over time into soil and then arrives at the historic bridges’ stones. In this way, because of capillarity of the stones and ionic osmos, the salt accumulates in the pores of the stones and the hygroscopic nature of NaCl damages the historic bridges’ stones on the road route. This physically damages the stone and reduces the life of historic bridges. Therefore, the removal of salt entering the structure of the stone is very important to increase the durability of the stones. In order to model this situation, a sum of bentonite clay paste prepared in liquid limit was implemented to artificially polluted andesite stone samples. The clay pastes applied to the stones were removed from the stones surfaces after a certain period of time and analyzed. X-ray Fluorescence Spectrometry (XRF) analyzes showed that bentonite clay gave positive results for sodium chloride removal from historical building stones exposed to NaCl salt.
PERAN DAN FUNGSI BAHASA INDONESIA DALAM MANAJEMEN PEMASARAN
Authors: Hanum Fauziah
Published: December 2019

Penelitian ini bertujuan untuk mengetahui peran dan fungsi bahasa Indonesia dalam manajemen pemasaran. Pemasaran merupakan unsur yang sangat penting dalam sebuah usaha. Apabila dirata-ratakan hampir 95% kesuksesan suatu usaha dipengaruhi oleh pemasaran.Dalam hal ini dibutuhkan seorang manajemen pemasaran yang baik, kreatif dan berkualitas yang mampu memasarkan sebuah produk,sehingga produk tersebut dapat diterima oleh konsumen atau masyarakat luas. Metode yang digunakan dalam penelitian ini adalah metode deskriftif dengan teknik kualitatif. Berdasarkan penelitian ini dapat disimpulkan bahwa peran dan fungsi bahasa Indonesia dalam manajemen pemasaran sangat besar, hal ini dapat terlihat pada penguasaan bahasa yang digunakan seorang marketing dalam menyampaikan sebuah produk.Untuk itu dalam memasarkan sebuah produk,seorang marketing membutuhkan komunikasi. Komunikasi adalah alat penyampaian pesan kepada orang lain agar terjadi saling mempengaruhi diantara kedua belah pihak. Alat komunikasi yang digunakan adalah bahasa. Bahasa sebagai alat komunikasi memiliki peran tersendiri dalam sebuah usaha/bisnis. Tanpa adanya bahasa,komunikasi tidak dapat berjalan dengan baik. Bahasa merupakan alat untuk mengekspresikan diri, alat komunikasi dan sarana untuk kontrol sosial. Bahasa adalah alat komunikasi yang paling efektif untuk menyampaikan ide,pesan,tujuan,perasaan dan menyampaikan pendapat. Penelitian ini bertujuan untuk mengetahui peran dan fungsi bahasa Indonesia dalam manajemen pemasaran. Oleh karena itu segala aktivitas manusia sebagai penutur dan pengguna bahasa dapat dilihat dari cara seseorang menggunakan bahasa tersebut. Gagasan,ide,pikiran,harapan dan keinginan dapat disampaikan melalui bahasa. Kata Kunci : Peran dan Fungsi Bahasa , Manajemen Pemasaran
PENGARUH IMPLEMENTASI MANAJEMEN KURIKULUM DAN KINERJA GURU TERHADAP PENINGKATAN MUTU LULUSAN DI SMK SWASTA SITI BANUN RANTAUPRAPAT
Authors: Anwar Khairul
Published: December 2019

Penilitian ini bertujuan untuk mengetahui dan menganalisis pengaruh implementasi manajemen kurikulum dan kinerja guru terhadap mutu lulusan di SMK Swasta siti Banun Rantauprapat. Penelitian ini menerapkan metode explanatory survey. Objek pnelitian ini adalah SMK Swasta Siti Banun Rantuprapat. Populasi dan sampel adalah seluruh Guru dan pegawai tata usaha SMK siti Banun Rantauprapat yang berjumlah 80 orang. Hasil pnelitian menunjukkan bahwa: 1) ditemukan pengaruh signifikan dari implementasi manajemen kurikulum terhadap peningkatan mutu lulusan di SMK siti Banun Rantuprapat dengan fhitung  0.059 > Pvalue 0,021. 2) ditemukan pengaruh  signifikan dari kinerja Guru terhadap peningkatan mutu lulusan di SMK Siti Banun Rantauprapat di buktikan dengan nilai fhitung  0.989 > Pvalue 0,021.dan 3) terlihat pengaruh signifikan dari implementasi manajemen kurikulum dan kinerja guru secara bersamaan terhadap penigkatan mutu lulusan di SMK Siti Banun Rantauprapat Hal ini berdasarkan hasil analisis data yang menunjukkan nilai fhitung  0.989 > Pvalue 0,021. Kata Kunci: Implamentasi Manajemen Kurikulum, Kinerja Guru, Mutu Lulusan
Paparan Pornografi melalui Televisi dan Perilaku Seksual Remaja di SMA Negeri 2 Kendari
Authors: Yustiari Yustiari , Syahrianti Syahrianti
Published: December 2019

Penggunaan teknologi dewasa ini semakin memudahkan komunikasi tanpa dibatasi oleh ruang dan waktu. Saat ini media cetak dan elektronik merupakan lingkungan yang dekat dengan remaja. Televisi merupakan media elektronik yang mudah diakses oleh remaja karena banyaknya informasi dan siaran berita. Penelitian ini bertujuan untuk mengetahui paparan konten pornografi melalui televisi dan perilaku seksual remaja di SMAN 2 Kendari. Desain penelitian yang digunakan adalah cross sectional study. Sampel penelitian sebanyak 69 remaja di SMAN 2 Kendari. Sebagian besar responden (53.1%) secara rendah terpapar pornografi dari media televisi. Perilaku seksual ringan pada 60 responden (86.96%). Mayoritas perilaku seksual yang sering dilakukan adalah berpegangan tangan (57.9%). Sebanyak 5 responden (7,2%) melakukan ciuman dengan lidah saat berpacaran. Sebagian besar responden memiliki perilaku teman sebaya yang rendah (57,9%).
Major Depressive Disorder: A Mini Review
Authors: Hadi Indriono , Wijayati Fitri , Usman Reni Devianti , Rosyanti Lilin
Published: December 2019

Depression is a condition of a person feeling sad, disappointed when experiencing a change, loss, failure and becoming pathological when unable to adapt. Depression is a condition that affects a person affectively, physiologically, cognitively and behaviorally thus changing the usual patterns and responses. Major Depressive Disorder is a heterogeneous disease characterized by feelings of depression, anhedonia, changes in cognitive function, changes in sleep, changes in appetite, guilt that occur over two weeks, described with a loss of interest or pleasure in the usual activity and is a disease with neurobiological consequences involving structural, functional and molecular changes in some areas of the brain. Maladaptive neural responses, social, psychological, and physiological rejections interact with each other with other susceptibility factors, such as a history of depression, life stress levels, genetic factors, will increase a person's susceptibility to depression.
Paradigma Al-Quran Dalam Tradisi Keilmuan Islam
Authors: Tridiani Febrisia Fadillah
Published: December 2019

Al-Quran as paradigm is the basic of scientific tradition in Islam, because al-Quran have the ability as the mode of thought, mode of inquiry, which than generates mode of knowing.In the Islamic scientific tradition, al-Quran is used as the main point that regulate many aspect of life, particularly as a basic education paradigm. The paradigm of al-Quran used as the relationship between revelation, reason, and science. So, this the basic beliefs of Islam, give stability and confidence to themself to the straight path of life and also herd them to the day hereafter. There is a symbiotic relationship between the Qur'an and science. In addition, the Qur'an has to indicate the main points and reflect on the education system. To make the Qur'an as scientific tradition of Islam, then we must seek to understand its meaning; clear the mind, heart and soul in building a heart to understand the Quran; realize that the Koran is the source of knowledge; and using the methodology of the Qur'an as a means of scientific thingking.
ANALISIS PENGGUNAAN PENGARUH RANTAI DAN SPROKET TERHADAP KONSUMSI DAYA MOTOR PADA SISTEM TRACK MOBILE ROBOT
Authors: Saputra Hendri Maja , Putera Eka , Subagio Dalmasius Ganjar
Published: December 2019

Analisis pengaruh penggunaan rantai dan sproket terhadap konsumsi daya motor pada platform mobile robot yang menggunakan sistem track telah dilakukan. Penelitian ini saat penting dilakukan untuk menghindari kesalahan pada  saat  pemilihan  daya  motor  yang  akan  digunakan  ketika  rancang  bangun  mobile  robot  yang  banyak menggunakan rantai dan sproket. Hasil penelitian ini diharapkan dapat digunakan sebagai dasar dalam merancang mobile robot sistem track, terutama dalam memprediksi peningkatan konsumsi daya motor. Pada set-up pengujian, sensor ACS712 20A dipasangkan secara seri pada kabel motor untuk mendapatkan konsumsi arus, sedangkan modul pembagi tegangan digunakan untuk mengambil nilai tegangan. Sensor-sensor tersebut dihubungkan dengan mikrokontoler Arduino Nano V3 untuk mengolah data yang didapat yang kemudian disimpan dan ditampilkan pada laptop. Pengujian dilakukan pada lima kondisi, yaitu transmisi lengkap (beban penuh), minus 1 flipper, minus 2 flipper, tanpa track wheel (terhubung dengan poros), dan motor bebas beban. Hasil penelitian menunjukkan bahwa penggunaan rantai dan sproket pada kondisi beban penuh meningkatkan konsumsi daya motor sebesar 215% dari pada konsumsi daya pada keadaan bebas beban.Kata Kunci: rantai, sproket, konsumsi daya, track drive, mobile robot
POTENCY OF SOLAR HYDROGEN GENERATION SYSTEM IN URBAN AREA: CASE STUDY OF BANDUNG CITY
Authors: Widiatmoko Pramujo , Devianto Hary , Nurdin Isdiriayani , Khairunnisa Saumi Febrianti , Rafi Muhammad Irfan
Published: December 2019

Development  of  hydrogen  production  system  is  important  in  the  future  to support  electric  vehicles operation. This paper studies potency of rooftop PV-PEM electrolyser system connected to fuel station in urban area of Bandung City. Rooftop inclination and orientation of the PV influences the generated electricity by 0.8 – 4.2% compared with horizontal installed-PV. With the solar to hydrogen efficiency of 8.5%, we found that the rooftop installed PV-electrolyser system in Bandung City with supporting area with a radius of 500 m is potentially able to provide fuel for up to a hundred vehicles daily. Further, the potency of rooftop solar hydrogen generation was mapped.Keywords: Solar hydrogen, urban rooftop, application prospect, PV-PEM
PENGARUH KONSENTRASI THINNER TERHADAP KETAHANAN KOROSI LAPISAN EPOKSI PADA BAJA KARBON RENDAH
Authors: Setiawan Asep Ridwan , Setiawan Egi
Published: December 2019

Lapisan epoksi sering digunakan untuk melindungi baja karbon dari korosi. Namun baja yang diberi lapisan epoksi dapat terserang korosi. Prosedur pelapisan yang kurang baik, preparasi permukaan, pemilihan komposisi lapisan dan kerusakan mekanis adalah beberapa faktor yang dapat menyebabkan rusaknya lapisan epoksi pada baja. Pada penelitian ini akan dipelajari pengaruh konsentrasi thinner terhadap ketahanan korosi lapisan epoksi. Lapisan epoksi dengan konsentrasi thinner yang bervariasi diaplikasikan pada substrat baja menggunakan metoda spray. Konsentrasi thinner yang divariasikan adalah 0, 15 dan 30 % volume. Pengukuran ketebalan, kekasaran, kekerasan dan permeabilitas pelapisan dilakukan sebagai data pendukung. Ketahanan korosi lapisan ini diuji pada lingkungan NaCl 5% dengan pengujian korosi siklus kabut garam. Hasil pengujian menunjukkan bahwa sampel dengan konsentrasi thinner 15% memiliki nilai daya lekat paling tinggi yaitu 1,875 MPa. Pengujian korosi siklus kabut garam menunjukkan bahwa lapisan epoksi dengan 15% thinner memiliki ketahanan korosi underfilm yang sangat baik, dengan Xmax 0,64 mm dan Ymax 0,69 mm. Seiring dengan peningkatan konsentrasi thinner, ketebalan dan kekasaran permukaan lapisan menurun. Hasil pengujian FTIR menunjukkan bahwa penambahan thinner tidak mempengaruhi struktur kimia dari lapisan epoksi yang terbentuk.Kata kunci: pelapisan, daya lekat, ketahanan korosi, thinner
The Impact of the Dynamical State of Galaxy Groups on the Stellar Populations of Central Galaxies
Authors: Raouf Mojtaba , Smith Rory , Khosroshahi Habib G. , Dariush Ali A. , Driver Simon , Ko Jongwan , Hwang Ho Seong
Published: December 2019

We study the stellar populations of the brightest group galaxies (BGGs) in groups with different dynamical states, using Galaxy And Mass Assembly survey data. We use two independent, luminosity-dependent indicators to probe the relaxedness of their groups: the magnitude gap between the two most luminous galaxies (ΔM
12), and the offset between BGGs and the luminosity center (D
offset) of the group. Combined, these two indicators were previously found useful for identifying relaxed and unrelaxed groups. We find that the BGGs of unrelaxed groups have significantly bluer near-ultraviolet-r colors than in relaxed groups. This is also true at the fixed sersic index. We find the bluer colors cannot be explained away by differing dust fraction, suggesting there are real differences in their stellar populations. Star formation rates derived from spectral energy distribution (SED) fitting tend to be higher in unrelaxed systems. This is in part because of a greater fraction of BGGs with non-elliptical morphology, but also because unrelaxed systems have larger numbers of mergers, some of which may bring fuel for star formation. The SED-fitted stellar metallicities of BGGs in unrelaxed systems also tend to be higher by around 0.05 dex, perhaps because their building blocks were more massive. We find that the ΔM
12 parameter is the most important parameter behind the observed differences in the relaxed/unrelaxed groups, in contrast with the previous study of Trevisan et al. We also find that groups selected to be unrelaxed using our criteria tend to have higher velocity offsets between the BGG and their group.
Onset Mechanism of M6.5 Solar Flare Observed in Active Region 12371
Authors: Kang Jihye , Inoue Satoshi , Kusano Kanya , Park Sung-Hong , Moon Yong-Jae
Published: December 2019

We studied a flare onset process in terms of stability of a three-dimensional (3D) magnetic field in active region 12371 producing an eruptive M6.5 flare in 2015 June 22. In order to reveal the 3D magnetic structure, we first extrapolated the 3D coronal magnetic fields based on time series of the photospheric vector magnetic fields under a nonlinear force-free field (NLFFF) approximation. The NLFFFs nicely reproduced the observed sigmoidal structure which is widely considered to be preeruptive magnetic configuration. In particular, we found that the sigmoid is composed of two branches of sheared arcade loops. On the basis of the NLFFFs, we investigated the sheared arcade loops to explore the onset process of the eruptive flare using three representative magnetohydrodynamic instabilities: the kink, torus, and double arc instabilities (DAI). The DAI, recently proposed by Ishiguro & Kusano, is a double arc loop that can be more easily destabilized than a torus loop. Consequently, the NLFFFs are found to be quite stable against the kink and torus instabilities. However, the sheared arcade loops formed prior to the flare possibly become unstable against the DAI. As a possible scenario for the onset process of the M6.5 flare, we suggest a three-step process: (1) double arc loops are formed by the sheared arcade loops through the tether-cutting reconnection during an early phase of the flare, (2) the DAI contributes to the expansion of destabilized double arc loops, and (3) finally, the torus instability makes the full eruption.
GRB 180620A: Evidence for Late-time Energy Injection
Authors: Becerra R. L. , De Colle F. , Watson A. M. , Fraija N. , Butler N. R. , Lee W. H. , Román-Zúñiga C. G. , Bloom J. S. , González J. J. , Kutyrev A. S. , Prochaska J. X. , Ramirez-Ruiz E. , Richer M. G. , Troja E.
Published: December 2019

The early optical emission of gamma-ray bursts (GRBs) gives an opportunity to understand the central engine and first stages of these events. About 30% of GRBs present flares whose origin is still a subject of discussion. We present optical photometry of GRB 180620A with the COATLI telescope and RATIR instrument. COATLI started to observe from the end of prompt emission at T + 39.3 s and RATIR from T + 121.4 s. We supplement the optical data with the X-ray light curve from Swift/XRT. We observe an optical flare from T + 110 s to T + 550 s, with a temporal index decay α
O,decay = 1.32 ± 0.01, and Δt/t = 1.63, which we interpret as the signature of a reverse shock component. After the initial normal decay the light curves show a long plateau from T + 500 s to T + 7800 s in both X-rays and the optical before decaying again after an achromatic jet break at T + 7800 s. Fluctuations are seen during the plateau phase in the optical. Adding to the complexity of GRB afterglows, the plateau phase (typically associated with the coasting phase of the jet) is seen in this object after the “normal” decay phase (associated with the deceleration phase of the jet), and the jet break phase occurs directly after the plateau. We suggest that this sequence of events can be explained by a rapid deceleration of the jet with t

d
 ≲ 40 s due to the high density of the environment (≈100 cm−3) followed by reactivation of the central engine, which causes the flare and powers the plateau phase.
Temporal Variability in Hot Jupiter Atmospheres
Authors: Komacek Thaddeus D. , Showman Adam P.
Published: December 2019

Hot Jupiters receive intense incident stellar light on their daysides, which drives vigorous atmospheric circulation that attempts to erase their large dayside-to-nightside flux contrasts. Propagating waves and instabilities in hot Jupiter atmospheres can cause emergent properties of the atmosphere to be time-variable. In this work, we study such weather in hot Jupiter atmospheres using idealized cloud-free general circulation models with double-gray radiative transfer. We find that hot Jupiter atmospheres can be time-variable at the ∼0.1%–1% level in globally averaged temperature and at the ∼1%–10% level in globally averaged wind speeds. As a result, we find that observable quantities are also time-variable: the secondary eclipse depth can be variable at the ≲2% level, the phase-curve amplitude can change by ≲1%, the phase-curve offset can shift by ≲5°, and terminator-averaged wind speeds can vary by ≲2 km s−1. Additionally, we calculate how the eastern and western limb-averaged wind speeds vary with incident stellar flux and the strength of an imposed drag that parameterizes Lorentz forces in partially ionized atmospheres. We find that the eastern limb is blueshifted in models over a wide range of equilibrium temperature and drag strength, while the western limb is only redshifted if equilibrium temperatures are ≲1500 K and drag is weak. Lastly, we show that temporal variability may be observationally detectable in the infrared through secondary eclipse observations with the James Webb Space Telescope, phase-curve observations with future space telescopes (e.g., ARIEL), and/or Doppler wind speed measurements with high-resolution spectrographs.
Long-lived Dust Rings around HD 169142
Authors: Toci Claudia , Lodato Giuseppe , Fedele Davide , Testi Leonardo , Pinte Christophe
Published: December 2019

Recent Atacama Large Millimeter/submillimeter Array (ALMA) observations of the protoplanetary disk around HD 169142 reveal a peculiar structure made of concentric dusty rings: a main ring at ∼20 au, a triple system of rings at ∼55–75 au in millimetric continuum emission, and a perturbed gas surface density from the 12CO,13CO, and C18O (J = 2–1) surface brightness profile. In this Letter, we perform 3D numerical simulations and radiative transfer modeling exploring the possibility that two giant planets interacting with the disk and orbiting in resonant locking can be responsible for the origin of the observed dust inner rings structure. We find that in this configuration the dust structure is actually long lived while the gas mass of the disk is accreted onto the star and the giant planets, emptying the inner region. In addition, we also find that the innermost planet is located at the inner edge of the dust ring, and can accrete mass from the disk, generating a signature in the dust ring shape that can be observed in mm ALMA observations.
Global Prevalence of Tobacco Use in Adolescents and Its Adverse Oral Health Consequences
Authors: Nazir Muhammad Ashraf , Al-Ansari Asim , Abbasi Nabeela , Almas Khalid
Published: December 2019

BACKGROUND: Smoking is associated with various systemic conditions and contributes to a huge financial burden to economies around the world.
AIM: The study aimed to evaluate global data about the prevalence of tobacco use among male and female adolescents and to discuss smoking-related oral complications.
METHODS: The prevalence data of tobacco use among adolescents (13-15 years) was retrieved from the World Health Organization (Global Health Observatory). The World Bankâ€™s statistics about gross national income (GNI) per capita were used to categorise low-income, lower-middle-income, upper-middle-income, and high-income countries. PubMed, Web of Science, Scopus, and Embase databases were searched to gather updated evidence about the adverse consequences of smoking on oral health among adolescents.
RESULTS: The prevalence of tobacco use was 19.33%, and there were 23.29% of male and 15.35% female smoker adolescents in 133 countries (p < 0.001). The highest prevalence of tobacco use in male (24.76%) and female (19.4) adolescents was found in high-income countries. Significantly higher proportions of male adolescents were smokers than female counterparts in low-income, lower-middle-income, and upper-middle-income (p < 0.001). However, there were no statistically significant differences in tobacco use between male and female adolescents in high-income countries. Low-income countries had the lowest prevalence (14.95%) of tobacco use, while high-income countries had the highest prevalence estimates (22.08). Gingivitis (72.8%), gingival bleeding (51.2%), oral malodor or halitosis (39.6%) is common oral conditions among smoker adolescents. Smoking habit is significantly associated with dental caries, periodontal disease, hairy tongue, smoking-related melanosis, and hyperkeratosis among adolescents.
CONCLUSION: There was a high prevalence of tobacco use among male and female adolescents around the globe. Available evidence suggests a strong association between smoking and compromised oral health among adolescents. Globally, measures should be taken to prevent and control the menace of tobacco use to reduce systemic and oral complications.
World Health Organization Surgical Safety Checklist with Addition of Infection Control Items: Intervention Study in Egypt
Authors: M. Hosny El-Shafei Arwa , Yassin Ibrahim Sahar , Mahmoud Tawfik Ayat , Abd El Fatah Shaimaa A. M.
Published: December 2019

BACKGROUND: Surgical team is in command of the operating room (OR) and takes decisions regarding various patient care procedures. Educational programs directed to them, should be creative, provocative and tailored to their specific needs and the expected outcomes.
AIM: This study aims to design and conduct an educational program of patient safety and infection control for the OR team based on the WHO surgical safety checklist and to assess their post-intervention knowledge and practices.
METHODS: This interventional study was conducted at the ORs of Port-said general hospital. It passed through three stages; baseline assessment of knowledge and practice regarding patient safety and infection control among OR team (surgeons, anaesthetists and nurses), intervention stage in which an educational program based on the WHO surgical safety checklist with modifications and additions of more infection control items was conducted, then re-assessment of their post-intervention knowledge and practices.
RESULTS: All the studied participants showed improvement in both knowledge and practices of patient safety and infection control after the educational program based on the WHO surgical safety checklist with modifications and additions of more infection control items and including not only practices but also knowledge as well, than before.
CONCLUSION: The modification of the WHO surgical safety checklist to fit local knowledge and practices created a comprehensive tool that led to an improvement in both knowledge and practices of patient safety and infection control among the OR team.
Management of Maxillofacial Fracture: Experience of Emergency and Trauma Acute Care Surgery Department of Sanglah General Hospital Denpasar Bali
Authors: Luciana Luciana , Oggy Bramastha Aires Rosadi , Wiargitha I Ketut , Irawan Hendry
Published: December 2019

BACKGROUND: Maxillofacial fracture is one of the major trauma; the cases were increasing because of the high number of motorcycles in Bali. The goal of the treatment is proper positioning of the occlusion, and it depends on rapid diagnosis and proper treatment.
AIM: This study aims to know the characteristics of the maxillofacial fracture patients in Sanglah General Hospital Denpasar Bali.
METHODS: A retrospective study, based on medical record were concluded, samples taken in Sanglah General Hospital from January to June 2015. Total recorded patient were 35 patients. The data obtained include age, gender, type of the fractures, and operation management.
RESULTS: The injury was more common in male compared to female (80% vs 20%). Age 20 to 40 years old were more common (48.57%), followed by the child to adolescent (aged 0 to 20 years old) were 31.43%, and adult to elderly (aged 40 to 60 years old) was 20%. The mandibular fracture was most common (51.43%), other fractures such as a zygomatic fracture (31.43%) and maxillary fracture (17.14%). Internal fixation was the gold standard of the treatment (65.71%), and the other was an arch bar (34.29%).
CONCLUSION: Diagnosing the right injury to the facial bone is a key step in determining a treatment plan. Rapid diagnosis and proper treatment lead to good occlusion, both internal fixation and arch bar were an effective treatment. The importance of dealing with almost all maxillofacial fracture problems in the first surgery.
A survey of the state of research data services in 35 U.S. academic libraries, or "Wow, what a sweeping question"
Authors: Murray Matthew , O'Donnell Megan , Laufersweiler Mark , Novak John , Rozum Betty , Thompson Santi
Published: December 2019

This report shares the results of a Spring 2018 survey of 35 academic libraries in the United States in regard to the research data services (RDS) they offer. An executive summary presents key findings while the results section provides detailed information on the answers to specific survey questions related to data repositories, metadata, workshops, and polices.
La créativité sous le prisme de l’innovation. Une enquête par entretiens semi-directifs auprès de 40 chercheurs industriels
Authors: Toustou Béatrice
Published: December 2019

Alors que la littérature sur les facteurs favorisant la créativité et l’innovation a crû de façon conséquente en volume et en sophistication, un nombre de plus en plus important de chercheurs s’interroge sur l’emploi élusif et ambigu des notions de créativité et d’innovation, dans la littérature comme dans les organisations, au niveau du résultat comme sur l’aspect processuel. Une hypothèse implicite semble avoir été posée que les mêmes facteurs opèrent de manière similaire sur tous les types de créativité et d’innovation, indépendamment des contextes et des métiers. Du point de vue de la recherche, malgré leur proximité et leurs interférences, il apparaît que les deux champs sont indépendants, chacun caractérisé par des perspectives dominantes et une littérature spécifique. L’objectif de cet article est de mieux comprendre la nature de la créativité au regard de l’innovation. Sur la base d’une étude qualitative menée par entretiens semi-directifs dans une unité de recherche et développement (R&D), nous explorons les représentations de 40 chercheurs industriels qui expérimentent la créativité dans un contexte d’innovation.
L’organisation digitale : des Ø et des 1 pour des opportunités et des risques
Authors: Barlatier Pierre-Jean , Burger-Helmchen Thierry
Published: December 2019

L’avènement d’Internet a profondément changé l’environnement externe et l’architecture des organisations. Si chaque nouvelle vague de progrès technique se confronte à l’euphorie tout comme aux réactions dubitatives des utilisateurs réels et potentiels, aujourd’hui, les évolutions des technologies numériques ou « digitales » (applications mobiles, cloud computing , médias et réseaux sociaux, objets connectés, intelligence artificielle, impression 3D…) continuent de transformer les usages et modes de fonctionnement des organisations. Ces technologies numériques, rapidement diffusées et adoptées, bouleversent les manières des organisations de produire des biens et services, d’interagir avec leur environnement ou encore d’exploiter les opportunités à la recherche d’avantages concurrentiels. Les changements induits par cette évolution structurelle sont profonds, les organisations voient leurs capacités d’intégration et leur agilité testées par le numérique pour in fine, dans leur majorité, accuser un retard par rapport aux avantages attendus initialement, les laissant dans le flou concernant leur « avenir digital ». En outre, les changements réels subis ou introduits par les organisations suite au développement du numérique impactent leurs pratiques mais aussi les théories de l’entreprise. La théorie des organisations est prise en défaut par rapport aux nouvelles architectures organisationnelles qui apparaissent et dont l’analyse pose de nombreuses questions aux chercheurs. Ainsi, les contributions de ce Numéro Spécial sur « l’organisation digitale » apportent de nouvelles perspectives sur l’étude des impacts de la digitalisation des organisations et leurs logiques et modes de fonctionnement.
FabLab : quel intérêt pour l’entrepreneur ?
Authors: Fonrouge Cécile
Published: December 2019

Les FabLabs sont des nouveaux lieux dans lesquels on peut expérimenter et fabriquer au moyen d’outils numériques. Si les recherches précédentes ont documenté le phénomène, aucune ne s’est posée la question directe de l’intérêt pour l’entrepreneur. Quels intérêts ont les entrepreneurs à fréquenter ces nouveaux lieux ? Pour répondre à cette question, nous définissons les FabLabs dans une lecture entrepreneuriale. Puis, une observation-participante d’un lancement de FabLab est menée sur deux ans. Trois questions de recherche sont isolées. Elles sont définies par contraste avec les concepts proches de tiers-lieu, communauté et écosystème. Les premiers résultats mettent en lumière le fait que ces lieux présentent des dimensions transgressives, de socialisation dans l’action et d’appropriation du numérique bien utiles pour l’entrepreneur.
Pouvoir et évaluation sur les plateformes de l’économie collaborative : Big Brother et le concours de beauté
Authors: Barbe Anne Sophie , Hussler Caroline
Published: December 2019

Cet article se penche sur les dispositifs d’évaluation décentralisée mis en place sur les plateformes de l’économie collaborative. Prenant le contrepied d’une littérature qui les présente avant tout sous une perspective fonctionnaliste et habilitante, nous proposons de les étudier comme des dispositifs de pouvoir, au sens de Foucault. L’objectif de cet article est alors d’appréhender la manière dont ces dispositifs influencent les comportements des utilisateurs de ces plateformes. Pour ce faire, nous menons une étude de cas unique sur la plateforme de covoiturage BlaBlaCar. Nous adoptons une démarche qualitative s’appuyant sur des entretiens semi-directifs menés auprès des utilisateurs de la plateforme. Nous mettons en lumière que les utilisateurs intègrent le dispositif d’évaluation décentralisée dans leurs comportements de façon différenciée selon leurs niveaux d’expérience sur la plateforme. Nous avançons ensuite qu’au-delà de la peur de la sanction, c’est parce que l’utilisateur se représente lui-même et le monde par le prisme du dispositif d’évaluation que la modification des comportements opère. Le dispositif d’évaluation décentralisée assujettissant différemment des utilisateurs pourtant « pairs », nous mettons enfin en lumière qu’il crée des situations asymétriques entre utilisateurs, à la faveur des plus expérimentés.
Le Mai 68 de l’Éducation Physique : du trotskisme à la critique du sport et à l’Éducation corporelle
Authors: Gleyse Jacques
Published: December 2019

En juillet-septembre 1968 paraît le brûlot : Sport, Culture et Répression , numéro 43 de la revue Partisans. Les auteurs de ce texte sont : François Maspero, Herbert Marcuse (traduction d’un texte de), André Rauch ( alias André Redna) Jean-Marie Brohm, François Gantheret, Ginette Bertrand, Michel Bernard 1 , Martial Barèges, Michel Bhussy, Pierre Vidal-Naquet, Fanny Vallon, Marc Roy. Il initie ce que l’on appellera par la suite la critique radicale freudo-marxiste du sport. Cette première publication, réalisée par des membres de groupes trotskystes ayant participé au mouvement de 1968, donnera lieu à beaucoup d’autres publications et à beaucoup d’autres actions : le boycott de la Coupe du monde de foot en Argentine en 1978, celui des Jeux olympiques de Moscou en 1980 (aux retombées internationales), la publication du journal L’Épique (journal satyrique), de la revue Quel Corps ? , la naissance du SGEN-CFDT EPS et de son journal Le Corps enchaîné , la création, au sein de la Fédération de l’Éducation nationale, en EPS, de la tendance École émancipée publiant Le Chrono enrayé . Par ailleurs, cela donnera lieu dès les années 1970-1980 à la contestation de l’hégémonisme du SNEP-U.A. et du SNEEPS et à l’essor de deux tendances : la Tendance du Manifeste et l’École émancipée, refusant la vision du sport éducatif proposée par la tendance majoritaire Unité Action (proche du PCF). Dix ans après, ces événements donneront lieu à des affrontements idéologiques et politiques. L’article s’attache à décrire la source politique de ces critiques, de ces publications et manifestations et leurs retombées dans le champ de l’EPS.
Safety and Bioavailability of Complete and Half-Dose Intravitreal Ziv-Aflibercept in an Experimental Model: Contralateral Eye Study
Authors: Lashay Alireza , Delrish Elham , Ashrafi Elham , Movassat Morteza , Asadi-Amoli Fahimeh , Dinarvand Rassoul , Abrishami Mojtaba
Published: December 2019

BACKGROUND AND OBJECTIVE:

To evaluate the safety and bioavailability of complete and half-dose of intravitreal ziv-aflibercept (IVZ) in an experimental model.

MATERIALS AND METHODS:

Thirty-two eyes of 16 male rabbits received one IVZ injection under anesthesia and the operating microscope. All right and left eyes received 1,250 μg/0.05 mL and 625 μg/0.05 mL of ziv-aflibercept, respectively. Then, rabbits were randomly allocated to four groups (four rabbits in each group). The rabbits were euthanized at predesignated intervals (at 24, 168, 336, and 720 hours), and the eyes were enucleated. Indirect ophthalmoscopy, vitreous sampling, and electrophysiological recordings were obtained before euthanization. Histological examination was performed after enucleation. Vitreous samples were evaluated by enzyme-linked immunosorbent assay to measure the concentration of aflibercept.

RESULTS:

No serious drug-related ocular inflammation and toxicity or systemic adverse events were identified. Electroretinogram findings showed no significant difference to the baseline measurements. Remaining vitreal concentrations of ziv-aflibercept injection for the 625 μg/mL group were 416 μg/mL, 349 μg/mL, 124 μg/mL, 41.2 μg/mL, and 18.1 μg/mL (± 10 μg/mL) and for the 1,250 μg/mL group were 833 μg/mL, 737 μg/mL, 284 μg/mL, 87.3 μg/mL, and 38.2 μg/mL (± 10 μg/mL), at zero, 24, 168, 336, and 720 hours after injection, respectively. The vitreous concentration of aflibercept was analyzed by one-compartment model. The area under curve from time 0 to the end point (AUC last) was 147,637 hours × μg/mL for the complete dose group (1,250 μg/0.05mL) and 68,498 hours × μg/mL for the half-dose group (625 μg/0.05 mL). The assessed vitreous half-life of ziv-aflibercept was 113 hours in both groups.

CONCLUSIONS:

IVZ proved to be safe and well tolerated, even in the complete dose group. It seems to be a cost-effective therapeutic option for the treatment of retinal vascular diseases. However, the long-term safety and efficacy of intravitreal ziv-aflibercept remain unknown.

[
Ophthalmic Surg Lasers Imaging Retina
. 2019;50:785–790.]
Perifoveal Exudative Vascular Anomalous Complex With Suspended Scattered Particles in Motion
Authors: Banda Himanshu K. , Dang Sabin , Rothman Richard J.
Published: December 2019

Perifoveal exudative anomalous complex (PEVAC) is an uncommon entity that occurs in isolation or in association with retinal vascular disorders. The authors describe a case of a 47-year-old man presenting with a central scotoma in the left eye found to have an isolated PEVAC. Fundus photography, optical coherence tomography (OCT), and intravenous fluorescein angiography were collected. OCT angiography of the lesion revealed suspended scattered particles in motion, a newly described finding in exudative macular retinopathies. The authors describe the first case of PEVAC with angiographic evidence of suspended scattered particles in motion.

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Ophthalmic Surg Lasers Imaging Retina
. 2019;50:796–800.]
OCTA: A Practical Method of Image Averaging Using Adobe Photoshop Software
Authors: Mikhail Mirriam , Jiang Shangjun , Hahn Paul , Orlin Anton , Rao Rajesh C. , Choudhry Netan
Published: December 2019

BACKGROUND AND OBJECTIVE:

To describe a method for averaging ocular coherence tomography angiography (OCTA) images using a commercially available photo editing software: Adobe Photoshop CC 2017.

PATIENTS AND METHODS:

This single-center study assessed the feasibility of using Adobe Photoshop as an OCTA image averaging tool. Three 3.0 mm × 3.0 mm OCTA images from each eye were obtained using commercially available OCTA devices. Captured OCTA images were exported in high-resolution TIFF format, imported as an image stack, aligned using an automated function, and averaged by creating a Smart Object using Photoshop CC 2017 software. In conjunction with qualitative assessment, the main outcome of the study was image grader preferences with respect to clarity of the foveal avascular zone (FAZ), blood vessel delineation, and the ability to identify abnormal vasculature.

RESULTS:

After removing OCTA scans with significant image distortion, 25 sets of images were included in the analysis. Adobe Photoshop CC 2017 successfully aligned and averaged all images of the superficial and deep retinal plexuses that contained a minimum 40% overlap. Three independent retinal specialists found the averaged images to be slightly or definitely preferable to the original 87%, 89%, and 69% of the time with respect to clarity of the FAZ, clarity of blood vessel delineation, and the ability to identify abnormal vasculature, respectively.

CONCLUSIONS:

Adobe Photoshop CC 2017 is an excellent tool for image averaging, producing high-quality resulting OCTA images. As an easily accessible software, Photoshop has the potential for use in a diversity of pathological conditions.

[
Ophthalmic Surg Lasers Imaging Retina
. 2019;50:802–807.]