Syriac–Aramaic words in an early Christian Arabic copy of the Pentateuch (Ms Sin. Ar. 2)

Este artículo se ocupa de las voces siriaco arameas incluidas en las primeras copias del Pentateuco (ms. Sin. ar. 2) del siglo X, que fueron traducidas a partir de la Peshīṭtā. Uno de sus reasgos más característicos es la existencia de residuos siriaco-arameos, especialmente en las palabras siriaco-arameas que no son comunes al árabe.

Cosmic Explosions: Observations Of Infant Hydrogen-Free Supernovae Towards An Understanding Of Their Parent Systems

Radiation in the first days of supernova explosions contains rich information about physical properties of the exploding stars. In the past three years, I used the intermediate Palomar Transient Factory to conduct one-day cadence surveys, in order to systematically search for infant supernovae. I show that the one-day cadences in these surveys were strictly controlled, that the realtime image subtraction pipeline managed to deliver transient candidates within ten minutes of images being taken, and that we were able to undertake follow-up observations with a variety of telescopes within hours of transients being discovered. So far iPTF has discovered over a hundred supernovae within a few days of explosions, forty-nine of which were spectroscopically classified within twenty-four hours of discovery.

Our observations of infant Type Ia supernovae provide evidence for both the single-degenerate and double-degenerate progenitor channels. On the one hand, a low-velocity Type Ia supernova iPTF14atg revealed a strong ultraviolet pulse within four days of its explosion. I show that the pulse is consistent with the expected emission produced by collision between the supernova ejecta and a companion star, providing direct evidence for the single degenerate channel. By comparing the distinct early-phase light curves of iPTF14atg to an otherwise similar event iPTF14dpk, I show that the viewing angle dependence of the supernova-companion collision signature is probably responsible to the difference of the early light curves. I also show evidence for a dark period between the supernova explosion and the first light of the radioactively-powered light curve. On the other hand, a peculiar Type Ia supernova iPTF13asv revealed strong near-UV emission and absence of iron in the spectra within the first two weeks of explosion, suggesting a stratified ejecta structure with iron group elements confined to the slow-moving part of the ejecta. With its total ejecta mass estimated to exceed the Chandrasekhar limit, I show that the stratification and large mass of the ejecta favor the double-degenerate channel.

In a separate approach, iPTF found the first progenitor system of a Type Ib supernova iPTF13bvn in the pre-explosion HST archival mages. Independently, I used the early-phase optical observations of this supernova to constrain its progenitor radius to be no larger than several solar radii. I also used its early radio detections to derive a mass loss rate of 3e-5 solar mass per year for the progenitor right before the supernova explosion. These constraints on the physical properties of the iPTF13bvn progenitor provide a comprehensive data set to test Type Ib supernova theories. A recent HST revisit to the iPTF13bvn site two years after the supernova explosion has confirmed the progenitor system.

Moving forward, the next frontier in this area is to extend these single-object analyses to a large sample of infant supernovae. The upcoming Zwicky Transient Facility with its fast survey speed, which is expected to find one infant supernova every night, is well positioned to carry out this task.

Análisis presupuestario del Ayuntamiento de Bilbao 2010-2013

En estos últimos años a raíz de la crisis económica que supuso una gran desaceleración económica, las entidades públicas han sufrido grandes cambios tanto en su situación económica como en la financiera teniendo que ajustar sus presupuestos. Este trabajo se basa en analizar la situación presupuestaria del Ayuntamiento de Bilbao en el periodo 2010-2013 mediante la recogida de datos económicos y analizando los presupuestos de gastos y de ingresos de dicha entidad. Para ello, se van a recoger los componentes del presupuesto: como se ha financiado (Clasificación Económica del Ingreso), la estrategia de actuación (Ejes Estratégicos), en que se ha utilizado el gasto (Clasificación Económica del Gasto) y para que se ha llevado a cabo (Clasificación Funcional del Gasto) y por ultimo quien ha ejecutado el gasto (Clasificación Orgánica). Además, se va a analizar la ejecución presupuestaria, el resultado presupuestario, el remanente de tesorería y la ejecución presupuestaria, así como otras variables presupuestarias.

A rede de marcação e recaptura: o caso de borboletas do gênero heliconius

(The Mark and Recapture Network: a Heliconius case study). The current pace of habitat destruction, especially in tropical landscapes, has increased the need for understanding minimum patch requirements and patch distance as tools for conserving species in forest remnants. Mark recapture and tagging studies have been instrumental in providing parameters for functional models. Because of their popularity, ease of manipulation and well known biology, butterflies have become model in studies of spatial structure. Yet, most studies on butterflies movement have focused on temperate species that live in open habitats, in which forest patches are barrier to movement. This study aimed to view and review data from mark-recapture as a network in two species of butterfly (Heliconius erato and Heliconius melpomene). A work of marking and recapture of the species was carried out in an Atlantic forest reserve located about 20km from the city of Natal (RN). Mark recapture studies were conducted in 3 weekly visits during January-February and July-August in 2007 and 2008. Captures were more common in two sections of the dirt road, with minimal collection in the forest trail. The spatial spread of captures was similar in the two species. Yet, distances between recaptures seem to be greater for Heliconius erato than for Heliconius melpomene. In addition, the erato network is more disconnected, suggesting that this specie has shorter traveling patches. Moving on to the network, both species have similar number of links (N) and unweighed vertices (L). However, melpomene has a weighed network 50% more connections than erato. These network metrics suggest that erato has more compartmentalized network and restricted movement than melpomene. Thus, erato has a larger number of disconnected components, nC, in the network, and a smaller network diameter. The frequency distribution of network connectivity for both species was better explained by a Power-law than by a random, Poissom distribution, showing that the Power-law provides a better fit than the Poisson for both species. Moreover, the Powerlaw erato is much better adjusted than in melpomene, which should be linked to the small movements that erato makes in the network

Life Cycle of Deccan Trap Magma Chambers: A Crystal Scale Elemental and Strontium Isotopic Investigation

The Deccan Trap basalts are the remnants of a massive series of lava flows that erupted at the K/T boundary and covered 1-2 million km2 of west-central India. This eruptive event is of global interest because of its possible link to the major mass extinction event, and there is much debate about the duration of this massive volcanic event. In contrast to isotopic or paleomagnetic dating methods, I explore an alternative approach to determine the lifecycle of the magma chambers that supplied the lavas, and extend the concept to obtain a tighter constraint on Deccan’s duration. My method relies on extracting time information from elemental and isotopic diffusion across zone boundary in an individual crystal. I determined elemental and Sr-isotopic variations across abnormally large (2-5 cm) plagioclase crystals from the Thalghat and Kashele “Giant Plagioclase Basalts” from the lowermost Jawhar and Igatpuri Formations respectively in the thickest Western Ghats section near Mumbai. I also obtained bulk rock major, trace and rare earth element chemistry of each lava flow from the two formations. Thalghat flows contain only 12% zoned crystals, with 87Sr/86Sr ratios of 0.7096 in the core and 0.7106 in the rim, separated by a sharp boundary. In contrast, all Kashele crystals have a wider range of 87Sr/86Sr values, with multiple zones. Geochemical modeling of the data suggests that the two types of crystals grew in distinct magmatic environments. Modeling intracrystalline diffusive equilibration between the core and rim of Thalghat crystals led me to obtain a crystal growth rate of 2.03x10-10 cm/s and a residence time of 780 years for the crystals in the magma chamber(s). Employing some assumptions based on field and geochronologic evidence, I extrapolated this residence time to the entire Western Ghats and obtained an estimate of 25,000 – 35,000 years for the duration of Western Ghats volcanism. This gave an eruptive rate of 30 – 40 km3/yr, which is much higher than any presently erupting volcano. This result will remain speculative until a similarly detailed analytical-modeling study is performed for the rest of the Western Ghats formations.

The locations of recent supernovae near the Sun from modelling 60Fe transport

The signature of 60Fe in deep-sea crusts indicates that one or more supernovae exploded in the solar neighbourhood about 2.2 million years ago1–4. Recent isotopic analysis is consistent with a core-collapse or electron-capture supernova that occurred 60 to 130 parsecs from the Sun5. Moreover, peculiarities in the cosmic ray spectrum point to a nearby supernova about two million years ago6. The Local Bubble of hot, diffuse plasma, in which the Solar System is embedded, originated from 14 to 20 supernovae within a moving group, whose surviving members are now in the Scorpius– Centaurus stellar association7,8. Here we report calculations of the most probable trajectories and masses of the supernova progenitors, and hence their explosion times and sites. The 60Fe signal arises from two supernovae at distances between 90 and 100 parsecs. The closest occurred 2.3 million years ago at present-day galactic coordinates l = 327°, b = 11°, and the second-closest exploded about 1.5 million years ago at l = 343°, b = 25°, with masses of 9.2 and 8.8 times the solar mass, respectively. The remaining supernovae, which formed the Local Bubble, contribute to a smaller extent because they happened at larger distances and longer ago (60Fe has a half- life of 2.6 million years9,10). There are uncertainties relating to the nucleosynthesis yields and the loss of 60Fe during transport, but they do not influence the relative distribution of 60Fe in the crust layers, and therefore our model reproduces the measured relative abundances very well.

Gestão democrática caminhos e possibilidades : um estudo de caso em uma escola pública de ensino fundamental em Belém

A linha de pesquisa desenvolvida nesta dissertação não é inédita, todavia, apresenta algumas peculiaridades a respeito da gestão democrática para a educação brasileira, mais especificamente em Belém do Pará, que são no mínimo, um contributo à sociedade. Principalmente porque demonstra sucintamente, no primeiro e segundo capítulos a trajetória sócio histórica e a política-pedagógica da gestão democrática no Brasil a partir dos meados do século XVI, até a implementação da LDB nº 9394/96. No terceiro capítulo trato a respeito das Leis de Diretrizes e Bases da Educação Nacional, nº 5692/71 e da LDB nº 9394/96, esta última objetivou romper com os resquícios deixados pela 5692/71, vale frisar que o primeiro estado a implementar as Leis de Diretrizes e Bases, assentadas na Lei nº 9394/96, foi o estado do Pará. Nos capítulos: quarto e quinto destaco a Metodologia aplicada à pesquisa de campo; às análises dos dados coletados e mensurados, e construo uma triangulação e/ou cruzamento (Teoria-Práxis-Teoria que resultará à práxis), entre a teoria pesquisada e analisada, com as referências bibliográficas e com os dados coletados no campo acerca dos caminhos e possibilidades necessários para articular a gestão democrática no município de Belém. Para construir esse trajeto recorri às leituras bibliográficas de autores que já aprofundaram o assunto como: José Júlio Chiavenato, Luiz Fernando Dourado, Paulo Freire, Moacir Gadotti, Carlos Libâneo, João Monlevad, Vítor Paro, Michel Thiollent, Sofia Lérché Vieira entre outros autores que contribuíram para a construção teórica e prática, e que estão citados na referência. No que concerne a pesquisa de campo foi efetivada uma sondagem prévia e uma apresentação do tema à direção da escola e para a presidente do Conselho Escolar, em seguida foram feitos contatos com os profissionais da educação através de conversas informais a cerca do assunto. Após esse processo foram aplicados questionários com vinte e seis perguntas objetivas e duas perguntas subjetivas, que estão expostas no anexo desta dissertação; outros mecanismos utilizados na pesquisa de campo foram as entrevistas in lócus com alguns profissionais da escola pesquisada, utilizou-se também a observação participante com o viés na abordagem sócio histórica. O trabalho de campo e as referências bibliográficas coadunadas à observação participante, no cotidiano da comunidade escolar, foram essenciais para a consolidação deste trabalho dissertativo que envolveu um tema, que certamente, está em voga na educação brasileira e que serviu como base para o título desta dissertação: Gestão democrática caminhos e possibilidades:. Um estudo de caso em uma escola pública de ensino fundamental em Belém. A dissertação em questão também apresenta no capítulo quinto o tripé básico para a análise científica relacionada a gestão democrática que são: Eleição direta para o Conselho Escolar, eleição direta para o diretor/articulador/social, eleição para o grêmio estudantil, esta sob a direção dos alunos. A base desse tripé deve estar assentada na participação qualitativa de todas as categorias da comunidade escolar, preservando e respeitando a autonomia de cada categoria, bem como demonstra a aproximação e a contribuição da comunidade externa para o processo de ensino-aprendizagem. E, por fim, não menos importante, proponho algumas sugestões que estão expostas nas conclusões e demonstram claramente a necessidade de implementação de alguns caminhos a serem seguidos e implementados para que de fato e de direito se processe a gestão democrática participativa, à luz dos conceitos apresentados nesta dissertação que estão diretamente relacionados à formação, à participação, e à autonomia, para isso é necessário alguns ajustes na lei nº 7.722/94, na resolução nº036/2008 e o conhecimento e domínio da Lei nº 9394/96.__ ABSTRACT: The line of research developed in this thesis is not new, however, presents some peculiarities about the democratic management in Brazilian education, specifically in Belem, which are at least a contribution to society. Mainly because it shows succinctly in the first and second chapters the history and socio-historical political-pedagogical democratic management in Brazil since the mid-sixteenth century through implementation of the LDB 9394/96. ln the third chapter dealing with respect to the Laws of Directives and Bases of National Education, 5692/71 and 9394/96 LDB, the latter aimed to break with the remnants left over from 5692/71, it is worth stressing that the first state to implement the laws Guidelines and Bases, sitting in the Law 9394/96, was the Para The fourth and fifth chapters highlight the Methodology applied to field research, the analysis of data collected and measured and construct a triangulation and I or intersection (Theory-Praxis-Theory resulting praxis), between theory researched and analyzed with the references and the data collected in the field about the ways and possibilities necessary to articulate the democratic management at the education system in the municipality of Belém. To construct this path resorted to reading literature by authors who have explored the subject as: Jose Julio Chiavenato, Luiz Fernando Dourado, Paulo Freire, Moacir Gadotti, Carlos Libâneo John Monlevade, Paro Vítor, Michel Thiollent, Sofia Lerche Vieira and others who contributed to the theoretical and practical construction andare cited in the reference. Regarding the field research, it was carried a survey and a preliminary presentation of the theme to the school principal and to the School Board president, then were made contacts with professionals in education, through informal conversations about the subject. After this procedure were applied questionnaires with twenty-six objective questions and two subjective questions that are exposed in the appendix of this thesis. Other mechanisms used in field research were interviews in locus with some professionals of the surveyed. It was also used participant observation with the bias in the socio-historical approach. The field research and the references link ed to the participant observation in daily school community. were essential for the consolidation of this dissertational work involving a theme, which certainly, is in vogue in the Brazilian education and That served as the basis for this title dissertation: Management democratic ways and possibilities: A in a public elementary school case study in Belém. This dissertation Thesis presents in Its fifth chapter the basic tripod for scientific analysis related to the democratic management which are: Direct election for the School Board, direct election for chief articulator/social, for students union, this last one under the direction of the students. The basis of this tripod must be seated in the qualitative participation of all categories of the school community, preserving and respecting the autonomy of each on and demonstrates the approach and the contribution of the externa! community to the process of teaching and learning. At finally, but not less important propose some suggestions that are exposed on the conclusion and clearly demonstrate the need to implement some ways to be followed and implemented so that actually and by law the participatory democratic management, may be conducted according to Ulrich the concepts of this dissertation, are directly related to education, participation, and autonomy. However, this requires some adjustments in the Law 7.722/94, in its resolution 036/2008, and indeed the knowledge mastery of the Law 9394/96.

Bridging natural and social sciences: a framework for identify strategies and actions for the conservation of biodiversity.

The Atlantic Forest is one of the most diverse areas in the world and considered a hotspot. Several actions are needed for its preservation, among them the implementation of the Biodiversity Corridors. The Atlantic Forest has three biodiversity corridors and the Rio de Janeiro State, which harbors huge species diversity, is in the Serra do Mar Corridor. We developed socioeconomic, political and environmental indicators to present conservation strategies supported by a wide database. These indicators complemented the previous surveys of priority areas which emphasized biotic elements, and their integration allowed the elaboration of strategies for the conservation and management, regionally directed, to support actions to be implemented by the Government. The analysis was done considering three subjects: Anthropic Pressure, Physical and Biotic State, and Present Ability of Response. Data analysis followed a synthesis-aggregation schedule and the resulting database was taken to a workshop, where specialists proposed strategies and actions for the conservation. These strategies were discussed considering vegetation remnant distribution, biological relevance, environmental vulnerability, kind of anthropic pressure in the region and potential for success of the actions proposed, based on the ability of response. Rio de Janeiro State is very diverse in biotic, physical, political, socioeconomic and cultural aspects which demand specific actions for each region. So, depending on the present situation of the natural and anthropic environments and on the present and future sources of degradation, regionally directed actions are applicable. This specificity in conservation actions will enable that the State remnants will be more successfully protected.