bluuebunny/crossref_metadata_2025 huggingface dataset:
Turbulent Flow Numerical Simulation for Unconventional Propulsion
Authors: Scurtu Ionut Cristian , Panaitescu Valeriu Nicolae
Published: January 2020

This paper presents mainly a new HPC/CFD numerical simulation for airflow around the rigid sail for Lupo90 boat in Constanta harbor conditions. The first part of the work displays the performed numerical simulation in turbulent flow based on the 3D sail. The presented model has high capacity of towing and it can be installed onboard existing ships. This is the result of the HPC (high performance computing) and CFD (computational fluid dynamics) which is a mixture of actual hardware and software at high level computing power applied to Lupo90 boat. All data for rigid sail is analyzed in a turbulent flow in commercial fluid dynamics ANSYS module CFX available at Naval Academy and the work was supported by Romanian Ministry of Defense. Sail performance studying in turbulent flow for the rigid sail onboard ships was always a huge computational difficulty and the HPC/CFD analysis available can solve tricky tasks. The most common unconventional systems are hybrid propulsion systems are using fossil fuel and wind energy, this type of HPC/CFD method for propulsion investigation is now implemented by craft constructor CirusPlast SRL.
Variational Method for Estimating the Dipole Moment in the Second Excited State of Fluorescein Molecule from its Electronic UV Absorption Spectra
Authors: Luca Alina Costina , Morosanu Ana Cezarina , Macovei Irina , Dimitriu Dan Gheorghe , Dorohoi Dana Ortansa , Stratulat Ioan Sorin
Published: January 2020

Electro-optical parameters of fluorescein molecule in the second excited electronic state and information on the interactions with solvents were obtained from a solvatochromic study. Parameters of the solvents such as the refractive index, electrical permittivity and Kamlet-Taft parameters (hydrogen bond acidity and basicity) were related with the experimentally recorded shifts of UV absorption spectral band of fluorescein dissolved in several solvents. Through a variational method, the electric dipole moment and polarizability in excited state of fluorescein molecule were estimated. The calculus requires some parameters of the fluorescein molecule in the ground electronic state, which were determined through a quantum-mechanical study.
Calcium and Vitamin D Involvement in the Fragility Fracture of the Pelvis
Authors: Filip Alexandru , Alexa Ovidiu , Sirbu Paul Dan , Filip Cristiana , Cojocaru Elena , Puha Gabriela , Trandafirescu Mioara Florentina , Badulescu Oana Viola
Published: January 2020

The fragility fracture is the widest spread of the bone diseases, in elderly. It particularly affects the vertebrae, the femur, the proximal humerus, the distal radius, the pelvis, thus preventing the patient�s free movement. The most debilitating of all these fractures is the fragility fracture of the pelvis. This type of fracture raises supplementary problems compared to the other fractures due to the difficulties of diagnosis, surgical approach and to the longer recovery period. Choosing the right treatment for FFP is difficult due to health and comorbidities in elderly patients. Both conservative and surgical therapy involve equally large risks: prolonged immobilization or surgical risks. Therefore, pharmacological therapy is an alternative to surgery. Bisphosphonates prove their utility in the fracture-healing outcome, but the influence of calcium and vitamin D were overlooked. The aim of our study was to evaluate the role of calcium and vitamin D in the healing process of patients with pelvic fragility fracture in osteoporotic patients with and without calcium and vitamin D supplementation. Our study shows that calcium and vitamin D exert a positive influence on the healing process of the fragility fractures and strongly emphasizes the need to educate patients to comply with the prescription to supplement calcium and vitamin D in order to improve fracture healing and prevent additional fractures.
Toxicological Evaluation of Some Essential Oils Obtained from Selected Romania Lamiaceae Species in Complex with Hydroxypropyl - gamma-cyclodextrin
Authors: Gurita (Ciobotaru) Valentina Gabriela , Pavel Ioana Zinuca , Borcan Florin , Moaca Alina , Danciu Corina , Diaconeasa Zorita , Imbrea Ilinca , Vlad Daliborca , Dumitrascu Victor , Pop Georgeta
Published: January 2020

Medicinal plants are highly investigated due to their multiple effects in human health. In the last two decades, plants belonging to Lamiaceae family have emerged as an important source of compounds with beneficial effects in various pathologies. Many species of the Lamiaceae family have a high volatile oil content which can be found in different parts of the plant. Some representative examples include Lavandula spp. Salvia spp. and Mentha spp. which are species with essential oils studied for antioxidant, antimicrobial and antitumor effects. The aim of this study was to evaluate the effect of six essential oils at skin level before and after encapsulation in hydroxypropyl-gamma-cyclodextrins. Results indicated that regardless of the tested form, the samples did not display an irritating or toxic effect at skin level, suggesting that the essential oils can be used in different formulations for topical application.
Therapeutic Management of Trauma-related Acute Pancreatitis in a Heart Transplant Recipient
Authors: Banceu Cosmin , Gurzu Simona , Harpa Marius , Brinzaniuc Klara , Ispas Mihaela , Bud Vasile , Kovacs Judit , Pop Marian , Ciorba Marius , Hessein Hussam Al , Suciu Horatiu
Published: January 2020

Acute pancreatitis is a very mortal disease, mortality that increases even more in patients with cardiac transplantation. Medical-surgical management of acute pancreatitis in transplanted patients can make the difference between life and death. The aim of this paper was to highlight the severity of this pathology especially because the patient is immunosuppressed after cardiac transplant. A case of 36-year-old man, known with heart transplant, immunosuppressive treatment and chronic renal frailer, who arrived to Emergency Department, with severe abdominal pain and abdominal distention which started after a traumatic accident. Investigations revealed acute pancreatitis that needed three surgeries for acute necrotic hemorrhagic pancreatitis, acute bleeding, left subphrenic abscess and intensive care therapy. With favorable postoperative evolution, patient is discharged 60 days later He�s follow up reveled no gastrointestinal or cardiac complication with an improved quality of life.
Combustible Microemulsions with Diesel and Diesel Admixed with Rapeseed Oil
Authors: Mihailescu Florentina Cristina , Balcan Marieta , Maxim Monica Elisabeta , Anghel Dan Florin
Published: January 2020

Novel results on combustible microemulsions prepared with diesel (D), blends of diesel and rapeseed oil (RSO), and mixtures of eco-friendly amphiphiles are presented. Water solubilization in oil/amphiphile systems was estimated by pseudo-ternary diagrams whereas the phase behavior by Winsor (W) diagrams. The extent of single-phase microemulsion (SPM) area depends on the amphiphile and oil phase composition. The presence of cosurfactant in the anionic-nonionic surfactant mixture increases very much the SPM area, but no effect is observed when half of D is replaced by RSO. In the pseudo-ternary phase diagram, the addition of organic electrolyte decreases the SPM areas. The microemulsions were characterized by the oil/water interfacial tension (gow), and the oil and water solubilization parameters (SPo) and (SPw). The results obtained reveal that the W III microemulsions have minimal goow values, whereas SPo and SPw are maximal. The work connects the phase behavior with the interfacial tension and the solubilization parameters of oil and water and is useful for obtaining and developing optimal microemulsions as alternative fuels.
Hydroxyapatite Nanoparticles for Acidic Mine Waters Remediation
Authors: Simonescu Claudia Maria , Culita Daniela Cristina , Marinescu Virgil , Tardei Christu , Talpeanu Dorinel
Published: January 2020

Mining activities have a high negative impact on the environment and on human health. Environmental impacts can result in contamination of surface water, groundwater, soil and air. Large volumes of wastewater produced by mining activities have to be remediated before being discharged into the environment. Due to the complex composition of wastewater coming from the mining industry and because their negative impacts, numerous remediation techniques have been applied. Adsorption is one of the most extensively used ways to remediate mining wastewater as a consequence of its low cost, easiness to be performed, and also due to the wide variety of materials (natural and synthetic) that can be use as adsorbents. Hydroxyapatite (HAP, Ca10(PO4)6(OH)2), a naturally occurring form of calcium phosphate has a good capacity to remove heavy metal ions from aqueous solutions due to its excellent properties. By preparing hydroxyapatite using different synthesis methods, its properties can be manipulated in order to increase the adsorption properties and reactivity. Herein, we reported synthesis of hydroxyapatite (HAP) samples using different synthesis conditions to establish the effect of synthesis conditions onto HAP properties. The HAP samples prepared have been characterized by the use of X-ray diffraction, FT-IR spectroscopy, specific surface measurements, Scanning Electron Microscopy (SEM). The stoichiometric compounds with high degree of crystallinity, low average particle diameter values, and low specific surface have been prepared by the solid state reaction and high calcination temepratures. The addition of surfactant (dispersant) has resulted in an increase in the specific surface area, which will result in an increase in the retention capacity of heavy metal ions in wastewater. The adsorbents prepared were used to remediate mine water. Results showed that non-calcinated HAP samples have a higher heavy metals adsorption capacity compared to HAP samples calcinated at 600 �C and 900 �C. The HAP samples prepared in presence of surfactant exhibit a higher heavy metals adsorption capacity than samples prepared in absence of surfactant. The values of the retention capacity differ depending on the nature of the metal ion: QMn(II) ] QFe(III) ] QZn(II) ] QPb(II) ] QNi(II). A change in the pH of mine water from 2.6 to 5.5 has occur that means that the metal ion retention mechanism goes through chemical reactions. The metal ions retention capacity suggests application of hydroxyapatite for remediation of mining wastewater.
Metal Cations Analysis Contained in Sambucus ebulus L., by Comparative Methods of Atomic Absorption Spectrometry
Authors: Bunget Adina Magdalena , Schenker Michael , Demetrian Alin Dragos , Gherghina Aurel , Radu Lucretiu , Chirigiu Liviu , Andrei Oana Cella
Published: January 2020

The purpose of this study was to perform a comparative study of cations in the vegetative organs of Sambucus ebulus by applying three different methods of digestion before atomic absorption spectrometry. Of the tested methods, the most effective was method 3 (mineralisation with nitric acid in a microwave oven), the other methods of sample digestion leading to incomplete mineralization of the samples and implicitly to the incomplete transfer of the analytes into solution, reflecting the slightly different contents in metal cations we obtained.
Renal Failure in Pelvic Organ Prolapse
Authors: Spinu Dan Arsenie , Bratu Ovidiu Gabriel , Bumbu Adrian , Stanescu Ana Maria Alexandra , Marcu Dragos Radu , Cherciu Alexandru , Iorga Lucian , Anghel Radu , Radu Florentina Ionita , Mischianu Dan
Published: January 2020

Pelvic organ prolapse (POP) is the aberrant herniation or descent of the pelvic units from their regular sites or their normal location in the pelvis. The pelvic organs that may be interested include the vaginal apex or uterus, anterior wall of vagina-cystocele, or posterior wall of vagina-rectocele. A thorough review of the literature using PUB med and SCOPUS databases was conducted We focused on those patients with preoperatory renal failure and on the results that these patients have achieved after surgery regarding this rare complication of pelvic prolapse. Pelvic organ prolapse can be considered an underdiagnosed disease. Many patients fail to present themselves to a doctor due to a false shame feeling. Fortunately renal failure is a rare complication of pelvic organ prolapse, often occurring in patients with asymptomatic or neglected POP. A major proportion of cases are able to recover some of their renal function but for some dialysis remains the only option.
Experimental Results Regarding the Groundwater Quality in Bacau City, Romania
Authors: Tirtoaca (Irimia) Oana , Lehadus Mirela Panainte , Nedeff Valentin , Sandu Ion , Tomozei Claudia , Cretu Vasile Valentin , Sandu Andrei Victor
Published: January 2020

The state of groundwater in terms of quality and quantity are a fundamental importance in urban areas. This paper aims to identify qualitative status of groundwater in Bacau city. To determine groundwater quality in Bacau city were taken samples from ten sources. Physico-chemical parameters chosen for making determinations are represented by ammonium, magnesium, manganese, nitrite and total nitrogen. After performing of measurements, it was observe that the admissible limit values of water quality parameters were exceeded in all ten sampling points. It has been established so that any source of groundwater in Bacau is not recommend for human consumption. In this regard, it is recommended to order measures by the competent authorities for the safety and health of the population.
Tugas Roh Kudus Dalam Misi Berdasarkan Kitab Kisah Para Rasul
Authors: Rouw Randy Frank
Published: January 2020

This article was made with the aim of describing the duties of the Holy Spirit seen from the Book of Acts and their relation to the missionary mission. In researching this topic, the author uses a literature review of books. The results of the research related to the role of the Holy Spirit are: First, the Holy Spirit fulfills the students in the ministry. He also enabled them to witness to the name of Christ and give courage to them. Second, the Holy Spirit chooses certain people for His task. Third, the Holy Spirit leads His messengers in missionary service. Fourth, the Holy Spirit works in the church. Fifth, the Holy Spirit strengthens the disciples to witness through His faithful, steadfast and willing servants for Christ. Sixth, the Holy Spirit also fulfills Gentiles, which is evidence of equality between Jews and Gentiles.

Artikel ini dibuat dengan tujuan memaparkan tugas-tugas Roh Kudus dilihat dari Kitab Kisah Para Rasul dan kaitannya dalam misi pekabaran Injil. Dalam meneliti topik ini, penulis menggunakan tinjauan kepustakaan dari buku-buku. Hasil dari penelitian kaitannya dengan peran Roh Kudus adalah: Pertama, Roh Kudus memenuhi murid-murid dalam pelayanan. Ia juga memampukan mereka untuk bersaksi bagi nama Kristus dan memberikan keberanian kepada mereka. Kedua, Roh Kudus memilih orang-orang tertentu untuk tugas-Nya. Ketiga, Roh Kudus memimpin para utusan-Nya dalam pelayanan misi. Keempat, Roh Kudus berkarya dalam jemaat. Kelima, Roh Kudus menguatkan murid-murid untuk bersaksi melalui pelayan-Nya yang setia, teguh dan rela berkorban bagi Kristus. Keenam, Roh Kudus juga memenuhi orang-orang non-Yahudi yang mana ini menjadi bukti adanya kesetaraan antara orang-orang Yahudi dan non-Yahudi.
Tarian “Langit-Bumi” Refleksi Pelayanan Bulan Bahasa dan Budaya di Gereja Masehi Injili Di Timor
Authors: Nayuf Henderikus
Published: January 2020

The concensus of May to become the month of language in the service of GMIT reflected as a chance to express the identity of local comonity. The exploration through dance and pray constitue psalm and proverb chant in the format of the liturgy. In this format the value of the traditional as the identity of the local community conforotd with the ecclesiastic consencus and the consencus of the nation and state. The culture encounter of the local community need a dialetic media in order to convey the message of the humanityso it will be wedely accepted by the church community. Ethnographic accentuation are use this qualitative method. Beside the library research are use to analyze the result of the research. Through emancipation dialectic, GMIT within supotive reletion between themselves the local governmentsincerely give the local community the change to expessed themselves without worry persistenly as a impact of the contention betweenthe church doctrine and the value of the local tradition from the local community.

Penetapan bulan Mei setiap tahun sebagai Bulan Bahasa dalam lingkup pelayanan Gereja Masehi Injili di Timor (GMIT) dimaknai sebagai wadah yang tepat mengekpresikan identitas masyarakat adat. Eksplorasi nilai-nilai kearifan lokal melalui tarian dan doa merupakan mazmur dan amsal yang dilantunkan dalam format tata ibadah. Dalam format inilah, nilai-nilai kearifan sebagai identitas masyarakat adat diperhadapkan pada konsensus gerejawi yang tentunya tidak bertentangan dengan konsensus bangsa dan Negara. Perjumpaan identitas masyarakat adat dalam format gerejawi membutuhkan media dialektika agar pesan-pesan kemanusiaan yang menjadi kekuatan masyarakat adat dapat diterima secara luas oleh warga gereja. Metode penelitian yang digunakan dalam tulisan ini adalah metode kualitatif dengan penekanan pada pendekatan etnografi. Di samping itu, pendekatan library research digunakan untuk menganalisa hasil penelitian yang telah dilakukan. Melalui dialektika yang emansipatif, GMIT dalam relasi yang saling menopang bersama pemerintah daerah secara tulus memberi ruang bagi masyarakat adat untuk berekpresi tanpa merasa gundah gulana sebagai dampak dari benturan doktrin gerejawi dan nilai-nilai kearifan masyarakat adat.
PERANCANGAN GAME EDUKASI TEBAK GAMBAR BERBASIS ANDROID UNTUK ANAK-ANAK USIA TK
Authors: Dian sano Albert V
Published: January 2020

Tujuan dari kajian ini adalah merancang game tebak gambar yang memiliki sisi edukasi dan berbasis

smartphone android untuk anak – anak usia TK. Adapun manfaat game yang dihasilkan dari kajian ini adalah: 1)

sebagai media pembelajaran yang menyenangkan bagi anak – anak usia TK, 2) dapat menumbuhkan minat

belajar anak – anak usia TK, 3) serta dapat meningkatkan kemampuan memahami bentuk hewan, benda, dan

buah bagi anak usia prasekolah. Game edukasi ini dirancang untuk anak – anak usia TK (4-7), ditargetkan pada

smartphone dengan sistem operasi android. Rancangan game edukasi tebak gambar ini dibagi menjadi dua

kategori, 1) menebak nama hewan dan 2) menebak nama benda. Setiap kategori terdiri dari tiga level yaitu, 1)

easy, 2) normal, dan 3) hard.
PERANCANGAN SISTEM INFORMASI PENILAIAN PRESTASI SISWA PADA SDN GROGOL SELATAN 13
Authors: Doharma Rouly , Mafiroh Dian
Published: January 2020

Penulisan ini membahas Analisa dan Perancangan Sistem Informasi Penilaian Prestasi Siswa Pada SDN Grogol Selatan 13. Hasil penilaian prestasi siswa dilakukan untuk melakukan evaluasi terhadap ketuntasan belajar peserta didik dan efektivitas proses pembelajaran di sekolah. Penelitian ini menggunakan metode pengumpulan data berupa survey yaitu dengan melakukan wawancara,studi Literatur dan melakukan penelitian terlebih dahulu yang kemudian dipadukan dengan model pembangunan sistem (waterfall). SDN Grogol Selatan 13 memerlukan suatu perancangan dan pembuatan dengan sistem berbasis web dikarenakan pada saat ini proses penilaian prestasi siswa masih secara manual dan tersimpan dalam file yang terpisah sehingga proses pengolahan nilai tidak efektif dan efisien. Dengan adanya rancangan ini diharapkan dapat membantu dalam meningkatkan efektifitas dari proses pendataan penilaian prestasi peserta didik di sekolah dan dapat membantu pendidik dalam proses pengolahan data penilaian peserta didik. Penulis coba membuat suatu sistem pengolahan nilai dengan PHP MySQL
PERANCANGAN MODEL KOMPETENSI SISTEM MANAJEMEN SUMBER DAYA MANUSIA INTERNATIONAL SOS-AEA-COMPANY
Authors: - Witarsjah
Published: January 2020

Kompetensi saat ini menjadi salah satu aspek yang diperhatikan dalam suatu organisasi perusahaan. Perusahaan berusaha meningkatkan kompetensi karyawannya ke tingkat yang setinggi-tingginya sehingga dapat mendukung perusahaan untuk lebih maju dan bersaing. AEA sebagai salah satu perusahaan jasa pelayanan medis di Indonesia juga telah menyadari hal ini dan untuk itu terus berusaha meningkatkan kompetensi dari setiap karyawan yang bekerja di AEA. Hasil dari perancangan ini bertujuan untuk membantu AEA dalam melakukan pemetaan atas kompetensi yang harus dimiliki oleh setiap karyawan yang bekerja di AEA sehingga AEA akan mengetahui kompetensi yang dimiliki oleh karyawannya. Berangkat dari sini, AEA akan lebih mudah untuk melakukan perencanaan sumber daya manusia yang akan melengkapi proses yang telah berjalan selama ini di AEA. Model kompetensi ini akan mendukung proses yang telah berjalan selama ini di AEA dalam hal seleksi penerimaan karyawan baru dan juga penempatannya, proses evaluasi performance dari masing-masing karyawan, dan perencanaan jenjang karir untuk suatu posisi beserta keperluan pelatihan atau pengembangan yang diperlukan oleh seseorang atas suatu kompetensi agar lebih meningkat. Diharapkan dengan diterapkannya model kompetensi ini, AEA akan dapat semakin berkembang dari antara sekian banyak perusahaan jasa pelayanan medis dan dapat mewujudkan apa yang terkandung dalam visi dan misi perusahaan.
Dinamika dan Problematika Implementasi Undang-Undang Desa: Pembelajaran dari Tiga Daerah di Jawa Barat
Authors: Nurjaman Rusman
Published: January 2020

Lahirnya Undang-Undang No. 6 tahun 2014 tentang Desa menjanjikan harapan pembaharuan untuk mewujudkan desa yang mandiri, maju, demokratis, dan sejahtera. Kajian ini bertujuan untuk melihat bagaimana praktik implementasi UU Desa tersebut dijalankan di beberapa daerah. Pengalaman desa dan pemerintah daerah di beberapa daerah kabupaten di Jawa Barat dalam mempersiapkan diri dan masa-masa awal implementasi UU Desa di sana menarik untuk dikaji sebagai sumber pembelajaran berharga bagi upaya pengoptimalan implementasi UU Desa di masa depan. Kajian ini menggunakan metode kualitatif dengan varian studi kasus terhadap persiapan dan pelaksanaan UU Desa di tiga daerah kabupaten di Provinsi Jawa Barat, yaitu Kabupaten Sumedang, Kabupaten Bandung, dan Kabupaten Sukabumi, yang dipilih karena alasan-alasan metodologis dan praktis tertentu. Pengumpulan data dilakukan melalui studi kepustakaan yang relevan, focus group discussion (FGD), wawancara mendalam, dan observasi. Hasil kajian menunjukkan adanya dinamika dan sejumlah tantangan persoalan dalam implementasi UU Desa di desa-desa di ketiga daerah kabupaten yang menjadi lokus kajian. Telaahan yang cermat dan mendalam terhadap problem normatif di lapangan dapat menjadi sumber pembelajaran berharga bagi upaya perumusan kebijakan baru dalam mengoptimalkan implementasi UU Desa.
As a Matter of State: The Role of Thermodynamics in Magnetohydrodynamic Turbulence
Authors: Grete Philipp , O’Shea Brian W. , Beckwith Kris
Published: January 2020

Turbulence simulations play a key role in advancing the general understanding of the physical properties of turbulence and in interpreting astrophysical observations of turbulent plasmas. For the sake of simplicity, however, turbulence simulations are often conducted in the isothermal limit. Given that the majority of astrophysical systems are not governed by isothermal dynamics, we aim to quantify the impact of thermodynamics on the physics of turbulence, through varying adiabatic index, γ, combined with a range of optically thin cooling functions. In this paper, we present a suite of ideal magnetohydrodynamics simulations of thermally balanced stationary turbulence in the subsonic, super-Alfvénic, high

(ratio of thermal to magnetic pressure) regime, where turbulent dissipation is balanced by two idealized cooling functions (approximating linear cooling and free–free emission) and examine the impact of the equation of state by considering cases that correspond to isothermal, monatomic, and diatomic gases. We find a strong anticorrelation between thermal and magnetic pressure independent of thermodynamics, whereas the strong anticorrelation between density and magnetic field found in the isothermal case weakens with increasing γ. Similarly, the linear relation between variations in density and thermal pressure with sonic Mach number becomes steeper with increasing γ. This suggests that there exists a degeneracy in these relations with respect to thermodynamics and Mach number in this regime, which is dominated by slow magnetosonic modes. These results have implications for attempts to infer (e.g.,) Mach numbers from (e.g.,) Faraday rotation measurements, without additional information regarding the thermodynamics of the plasma. However, our results suggest that this degeneracy can be broken by utilizing higher-order moments of observable distribution functions.
Three-component Kinematics of Multiple Stellar Populations in Globular Clusters with Gaia and VLT
Authors: Cordoni G. , Milone A. P. , Mastrobuono-Battisti A. , Marino A. F. , Lagioia E. P. , Tailo M. , Baumgardt H. , Hilker M.
Published: January 2020

The internal dynamics of multiple stellar populations in globular clusters (GCs) provides unique constraints on the physical processes responsible for their formation. Specifically, the present-day kinematics of cluster stars, such as rotation and velocity dispersion, could be related to the initial configuration of the system. In recent work, we provided the first study of the kinematics of different stellar populations in NGC 0104 over a large field of view in the plane of the sky, exploiting Gaia Data Release 2 (DR2) proper motions combined with multi-band ground-based photometry. In this paper, we combine Gaia DR2 proper motions with Very Large Telescope radial velocities to investigate the kinematics along the line of sight and in the plane of the sky of multiple populations in seven GCs, namely NGC 0104, NGC 0288, NGC 5904, NGC 6121, NGC 6254, NGC 6752, and NGC 6838. Among the analyzed clusters, only NGC 0104 and NGC 5904 show significant rotation. Separating our sample into two groups of first- and second-population stars (1P and 2P) we find that overall these two populations exhibit a similar rotation pattern in NGC 0104. However, some hints of different rotation are observed in the external regions of this cluster. Interestingly, 1P and 2P stars in NGC 5904 show different rotation curves, with distinct phases and such differences are significant at the ∼2.5σ level. The analysis of the velocity–dispersion profiles of multiple populations confirms that 2P stars of NGC 0104 show stronger anisotropy than the 1P.
Chapitre 5. Killing Immortals
Authors: Tammi Maija
Published: January 2020

« Nous suggérons que les organismes soient maintenus dans la classe jusqu’à la fin de leur vie naturelle. En dernier recours, ils peuvent être éliminés respectueusement », peut-on lire sur les directives de la Carolina Biological Supply Company. Le problème de ces organismes que l’on nomme les hydres, petits polypes d’eau douce ( Hydra viridissima et Hydra littoralis ), est qu’ils sont biologiquement immortels. Ils semblent ne jamais vieillir. Leur durée de vie naturelle est, à supposer qu’ils vivent dans des conditions parfaites, éternelle. Cependant, si une hydre ne semble pas vieillir, elle peut facilement mourir pour diverses raisons. « Au cours de la première semaine et demie de nos expériences, environ 33 d’entre elles sont mortes, et une hydre nommée Dolly n’a pas une belle apparence. Il manque quelques hydres » disent mes notes de laboratoire que je conserve dans le but de réaliser ma pratique artistique. Cet article décrit des expériences sur les hydres menées par le professeur de biologie de l’Université de Syracuse, Robert B. Silver, et par l’auteur via des notes de laboratoire prises entre 2017 et 2018. L’article décrit notre collaboration scientifique et artistique, notre étude scientifique, l’acte d’attribuer un nom individuel aux hydres, les effets du temps et les choix éthiques faits au cours des expériences. Il s’agit d’un compte-rendu descriptif et autocritique d’événements qui vise, à la fois, à décrire et à améliorer les expériences en cours.
Pass culture : faire du neuf avec du vieux, les valeurs en moins !
Authors: Bonniel Jacques
Published: January 2020

Le pass Culture est présenté comme un avatar du renouveau des politiques culturelles et symbolise la « culture » du nouveau monde. S’il est encore trop tôt pour faire le bilan de ce qui est encore une expérimentation, on peut toutefois légitimement s’interroger sur le sens de cette supposée innovation. Des questions se posent en effet à plusieurs niveaux : les valeurs qui sont censées être au cœur de ce dispositif, la conception conventionnelle et datée (malgré le tropisme technologique) de la « culture » où se mêlent des relents malruciens, le jeunisme languien et la fascination européenne pour les industries culturelles et créatives. Mais c’est également au plan opératoire que des interrogations se font jour : l’introduction dans le secteur culturel du new public management et ses effets sur la définition et la construction des politiques culturelles, la place des opérateurs privés, le statut et le périmètre des « acteurs culturels », et in fine la conception même du destinataire de cette démarche, le jeune de 18 ans, envisagé moins comme un « usager du service public de la culture » (référence en voie d’obsolescence) que comme un consommateur libre de ses choix individuels. Derrière l’invocation rituelle à l’« épanouissement » et à l’« autonomie » du jeune, c’est bien la contribution de la « culture » à des formes de socialisation démocratiques qui est en jeu.
La chute de Rome, une rupture dans le rapport au temps et à l’histoire ?
Authors: Petit Jean-François
Published: January 2020

La chute de Rome semble marquer un tournant inexorable dans le rapport au temps et à l’histoire. Mais, plus que la fin du monde, n’est-ce pas la fin d’un monde ? En écrivant la Cité de Dieu, saint Augustin devra se situer tout à la fois vis-à-vis des païens qui accusèrent les chrétiens d’être responsables de ce désastre et des chrétiens désemparés par l’invasion barbare. Ne peut-on pas y voir, en reprenant Hannah Arendt, un commencement, qui, selon ses propres termes, apparaît toujours comme un miracle ?
Le temps de l’existence et le sens de l’histoire dans l’Apocalypse de Jean
Authors: Paul André
Published: January 2020

Le livre de l’Apocalypse est l’un des très grands textes de l’humanité. Par le relais d’utopistes mais surtout d’artistes, aux moments de graves crises sociales, sa voix n’a cessé de retentir dans l’histoire. Adoptant le langage du mythe, apte à traverser siècles et cultures, elle énonce un diagnostic profond des maux structurels de l’homme et de l’humanité, l’existence n’étant qu’une succession de séquences de survie. D’où l’annonce des conditions mêmes de la vie, et l’offre à chacun des humains de l’infaillible espoir de l’avènement de celle-ci. Voilà ce que « révèle » ce fascinant écrit à l’optimisme paradoxal : en grec, apokalupsis, « révélation ».
Mademoiselle Lisette, première « championne » française : trajectoire et débats (1894-1898)
Authors: Tétart Philippe
Published: January 2020

En 1894, lors des championnats de Paris de cyclisme, une course de 100 km pour « dames » voit la victoire de Mademoiselle Lisette. Elle est alors la première sportive française présentée par la presse comme une championne. Cette distinction ne signifie nullement que la figure de la championne s’impose. Ses avocats sont rares. Elle est bien plus l’objet d’un rejet. Celui-ci passe notamment par l’euphémisation de l’expression – la championne devient « champion femme », « femme champion », plus simplement, championne entre guillemets, etc. – et la mise sous tutelle masculine des exploits cyclistes féminins. L’histoire de la carrière de Lisette, entre 1894 et 1898, révèle ainsi à quel point l’acceptation de l’excellence sportive féminine est difficile. Parallèlement, elle lève le voile sur un pan méconnu de l’histoire des sportives : l’existence d’un milieu de coureuses professionnelles qui font certains beaux jours des vélodromes français et anglais. Cette découverte invite à corriger l’historiographie du cyclisme féminin de la Belle Époque. Jusqu’à présent en effet, elle privilégiait les pratiques amateurs des femmes issues de milieux sociaux favorisés. Tel n’est pas le cas ici. En partant de l’étude des discours de presse sur Mademoiselle Lisette et en tentant de reconstruire son parcours malgré l’absence d’archives, le présent article propose donc d’interroger la difficile reconnaissance de la première femme championne de sport France – une femme discrète, mais qui dérange trop l’ordre des genres pour être pleinement acceptée, reconnue.
« On a les arbitres qu’on mérite ! » L’accès aux fonctions d’arbitre du football amateur
Authors: Slimani Hassen
Published: January 2020

L’objet de l’article vise à retracer la structuration sociale du corps des arbitres amateurs d’une ligue de football à travers leurs parcours d’engagement, des modalités de leurs sollicitations et de formations à celles de leurs hiérarchisations. Les conditions de possibilité de cet engagement renvoient d’abord à une réglementation fédérale économiquement et sportivement contraignante qui met en concurrence les clubs entre eux. Les mécanismes de régulation des deux marchés de l’arbitrage identifiés ici, destinés à couvrir tous les matches d’une saison et à dégager une élite fédérale, en viennent ainsi à produire multiples formes de relégations (sportives, associatives, fédérales) dont font plus fréquemment l’objet les arbitres issus des classes populaires, quel que soit leur âge d’entrée dans la carrière.
Fundus Fluorescein Angiography in the Screening for and Management of Retinopathy of Prematurity
Authors: Ng Eugene Y J , Lanigan Bernadette , O'Keefe Michael
Published: January 2020

Abstract

Objectives: To describe the characteristics of fundus fluorescein angiography in retinopathy of prematurity (ROP) and to explore the possible benefits of fundus fluorescein angiography over conventional indirect ophthalmoscopy in the screening for and management of ROP.

Patiente and Methods: Beginning in January 2003, 23 consecutive patients were recruited for a nonrandomized, investigational trial. Fifty-one sessions of fundus fluorescein angiography were performed as part of ROP screening.

Resulte: Fundus fluorescein angiography caused no adverse effect. Clear angiograms were easily obtained. There was delayed arm-to-eye fluorescein transit. Leakage of fluorescein was observed in all stage 2 and stage 3 ROP The leakage resolved soon after treatment. Arteriovenous tufts were found far posterior to the ROP ridge and were a feature of severe ROP

Conclusions: Some vascular pathology observed on angiograms cannot be seen on indirect ophthalmoscopy. There was delayed arm-to-eye transit and fluorescein transit within the eyes. Fundus fluorescein angiography allows more objective assessment of disease stage and zone. Regression of ROP is clearly observed on fundus fluorescein angiography.

J Pediatr Ophthalmol Strabismus 2006;43:85-90.
Unilateral Clinical Anophthalmia With Optic Nerve Hypoplasia in the Fellow Eye
Authors: Ceyhan Dogan , See Robert F , Schnall Bruce M
Published: January 2020

Abstract. We present the clinical and radiologic findings of two cases of clinical anophthalmia in one eye and optic nerve hypoplasia in the other eye. We propose possible causes of this rare finding. J Pediatr Ophthalmol Strabismus 2006;43:1 16-1 18.
Review on the Reliability of Medical Contents on YouTube
Authors: Okagbue Hilary I , Oguntunde Pelumi E , Bishop Sheila A , Obasi Emmanuela C M , Opanuga Abiodun A , Ogundile Opeyemi P
Published: January 2020

Abstract— Social media and YouTube, in particular, has become an avenue for quick dissemination of information. Patients now search the YouTube website for information on diseases, treatment options, surgery, and general health information. This paper reviews the different reliability methods, results, conclusions and recommendations of contributions on the medical videos on YouTube. A keyword search was done on different databases such as PubMed, Scopus, Web of Science and Google Scholar to generate articles related to the subject matter. No eligibility criteria were defined because the research is partly systematic. Descriptive statistics were used to present the information obtained from the analysis of the previously published papers in this context.                                                                                                                                              �                        � The results are as follows: (i). DISCERN, JAMAS and GQS are the most frequent assessment tools used by authors in the determination of the reliability of medical videos on YouTube. (ii). 60% of the independent reviewers that assessed the reliability of the YouTube videos are often two in number. (iii). 65% of the articles concluded that medical videos on YouTube contain misleading information. (iv). User engagements for low and high-quality videos are 58% and 42% respectively. (v). 36.3 % of the total videos were uploaded by trusted sources such as medical and health professionals from recognized or prestigious hospitals, while 63.7% were uploaded by other sources whose affiliations cannot be independently verified. (vi). Out of the total 2675 medical videos assessed, 1589 (59%) are categorized as having useful contents that can influence positively on patient education while 1086 (41%) are categorized as misleading and (vii). Only 35% of the papers strongly recommended that medical videos on YouTube are useful and can be a good source of patient education. Awareness is needed to educate patients on the benefits and dangers of assessing medical videos on YouTube. Videos uploaded by authentic medical personnel or organizations are strongly recommended.
Vanishing and Semipositivity Theorems for Semi-log Canonical Pairs
Authors: Fujino Osamu
Published: January 2020

We prove an effective vanishing theorem for direct images of log pluricanonical bundles of projective semi-log canonical pairs. As an application, we obtain a semipositivity theorem for direct images of relative log pluricanonical bundles of projective semi-log canonical pairs over curves, which implies the projectivity of the moduli spaces of stable varieties. It is worth mentioning that we do not use the theory of variation of (mixed) Hodge structure.
Lattice of Idempotent States on a Locally Compact Quantum Group
Authors: Kasprzak Paweł , Sołtan Piotr M.
Published: January 2020

We study lattice operations on the set of idempotent states on a locally compact quantum group corresponding to the operations of intersection of compact subgroups and forming the subgroup generated by two compact subgroups. Normal (

\sigma

-weakly continuous) idempotent states are investigated and a duality between normal idempotent states on a locally compact quantum group

\mathbb{G}

and on its dual

\widehat{\mathbb{G}}

is established. Additionally we analyze the question of when a left coideal corresponding canonically to an idempotent state is finite-dimensional and give a characterization of normal idempotent states on compact quantum groups.
Convergence Rate Estimates for Trotter Product Approximations of Solution Operators for Non-autonomous Cauchy Problems
Authors: Neidhardt Hagen , Stephan Artur , Zagrebnov Valentin A.
Published: January 2020

In the present paper we advocate the Howland–Evans approach to the solution of the abstract non-autonomous Cauchy problem (non-ACP) in a separable Banach space

X

. The main idea is to reformulate this problem as an autonomous Cauchy problem (ACP) in a new Banach space

L^p(\mathcal I,X)

,

p \in [1,\infty)

, consisting of

X

-valued functions on the time interval

\mathcal I

. The fundamental observation is a one-to-one correspondence between solution operators (propagators) for a non-ACP and the corresponding evolution semigroups for ACP in

L^p(\mathcal I,X)

. We show that the latter also allows us to apply the full power of operator-theoretical methods to scrutinise the non-ACP, including the proof of the Trotter product approximation formulae with operator-norm estimate of the rate of convergence.
Informality, Frictions, and Macroprudential Policy
Authors: Ben Hassine Moez , Rebei Nooman
Published: January 2020

We analyze the effects of macroprudential policies through the lens of an estimated dynamic stochastic general equilibrium (DSGE) model tailored to developing markets. In particular, we explicitly introduce informality in the labor and goods markets within a small open economy embedding financial frictions, nominal and real rigidities, labor search and matching, and an explicit banking sector. We use the estimated version of the model to run welfare analysis under optimized monetary and macroprudential rules. Results show that although informality reduces the efficiency of macroprudential policies following a convex fashion, combining the latter with an inflation targeting objective could be beneficial.
Guilt, Gender, and Work-Life Balance in Japan
Authors: Aoyagi Chie , Munro Alistair
Published: January 2020

The quantification of how aspects of a job are valued by employees sheds light on the potential for labor market reform in Japan. Using a nationwide sample of 1,046 working-age adults, we conduct a choice experiment that examines individuals’ willingness to trade wages against job characteristics such as the extent of overtime, job security, the possibility of work transfer and relocation. Our results suggest that: i) workers have high WTP (willingness to pay) to avoid extreme overtime and work transfer, ii) women have higher WTP than men, and iii) higher WTP for women are driven in part by feelings of guilt.
Breaking the Bank? A Probabilistic Assessment of Euro Area Bank Profitability
Authors: Elekdag Selim , Malik Sheheryar , Mitra Srobona
Published: January 2020

This paper explores the determinants of profitability across large euro area banks using a novel approach based on conditional profitability distributions. Real GDP growth and the NPL ratio are shown to be the most reliable determinants of bank profitability. However, the estimated conditional distributions reveal that, while higher growth would raise profits on average, a large swath of banks would most likely continue to struggle even amid a strong economic recovery. Therefore, for some banks, a determined reduction in NPLs combined with cost efficiency improvements and customized changes to their business models appears to be the most promising strategy for durably raising profitability.
Productivity and Tax Evasion
Authors: Dabla-Norris Era , Gradstein Mark , Miryugin Fedor , Misch Florian
Published: January 2020

The extent of tax compliance has important implications for revenue yield, efficiency and the fairness of any tax system. Tax evasion undermines revenue collection, distorts competition, and undermines a country’s development prospects. In this paper, we investigate whether higher productivity causally leads to lower tax evasion. We first present stylized facts consistent with this view and develop a model that illustrates one potential transmission channel. Second, we test the model predictions at the firm level using the self-reported share of declared income as proxy for tax evasion for a large sample of emerging and developing economies. Our results suggests that productivity improvements by firms can lead to lower tax evasion.
Assessing House Prices in Canada
Authors: Andrle Michal , Plašil Miroslav
Published: January 2020

This paper assesses house prices in 11 Canadian Census Metropolitan Areas (CMA) using the borrowing-capacity and the net-present-value approaches. The results indicate that by the end of 2018, house prices in most metropolitan areas are aligned with macroeconomic fundamentals. However, in Hamilton, Toronto, and Vancouver house prices have increased beyond the values implied by the fundamentals.
Governance and State-Owned Enterprises
Authors: Baum Anja , Hackney Clay , Medas Paulo , Sy Mouhamadou
Published: January 2020

State-owned enterprises (SOEs) are present in key sectors of the economies around the world. While they can provide an important public service, there is widespread concern that their activities are negatively affected by corruption. However, there is limited cross-country analysis on the costs of corruption for SOEs. We present new evidence on how corruption affects the performance of SOEs using firm level data across a large number of countries. One striking result is that SOEs perform as well as private firms in core sectors when corruption is low. Taking advantage of a novel database reforms, we also show that SOE governance reforms can generate significant performance gains.
How Do Changing U.S. Interest Rates Affect Banks in the Gulf Cooperation Council (GCC) Countries?
Authors: Adedeji Olumuyiwa , Alatrash Yacoub , Kirti Divya
Published: January 2020

Given their pegged exchange rate regimes, Gulf Cooperation Council (GCC) countries usually adjust their policy rates to match shifting U.S. monetary policy. This raises the important question of how changes in U.S. monetary policy affect banks in the GCC. We use bank-level panel data, exploiting variation across banks within countries, to isolate the impact of changing U.S. interest rates on GCC banks funding costs, asset rates, and profitability. We find stronger pass-through from U.S. monetary policy to liability rates than to asset rates and bank profitability, largely reflecting funding structures. In addition, we explore the role of shifts in the quantity of bank liabilities as policy rates change and the role of large banks with relatively stable funding costs to explain these findings.
Integrating Solvency and Liquidity Stress Tests
Authors: Han Fei , Leika Mindaugas
Published: January 2020

The paper presents a framework to integrate liquidity and solvency stress tests. An empirical study based on European bond trading data finds that asset sales haircuts depend on the total amount of assets sold and general liquidity conditions in the market. To account for variations in market liquidity, the study uses Markov regime-switching models and links haircuts with market volatility and the amount of securities sold by banks. The framework is accompanied by a Matlab program and an Excel-based tool, which allow the calculations to be replicated for any type of traded security and to be used for liquidity and solvency stress testing.
Informality and Aggregate Productivity
Authors: Alvarez Jorge , Ruane Cian
Published: January 2020

We assess the aggregate productivity impact of distortions arising from labor regulations in Mexico and how they interact with informality. Using employment surveys and a firm-level economic census, we document a number of novel features about informal firms in Mexico. We then construct and estimate a model of heterogeneous firms and endogenous informality to study the micro and macro impacts from various policy reforms. Some reforms may have large impacts on informal employment but small impacts on aggregate productivity.
Sovereign Risk in Macroprudential Solvency Stress Testing
Authors: Jobst Andreas A. , Oura Hiroko
Published: January 2020

This paper explains the treatment of sovereign risk in macroprudential solvency stress testing, based on the experiences in the Financial Sector Assessment Program (FSAP). We discuss four essential steps in assessing the system-wide impact of sovereign risk: scope, loss estimation, shock calibration, and capital impact calculation. Most importantly, a market-consistent valuation approach lies at the heart of assessing the resilience of the financial sector in a tail risk scenario with sovereign distress. We present a flexible, closed-form approach to calibrating haircuts based on changes in expected sovereign defaults affecting bank solvency during adverse macroeconomic conditions. This paper demonstrates the effectiveness of using extreme value theory (EVT) in this context, with empirical examples from past FSAPs.