2,977 research outputs found
Accretion properties of embedded low mass protostars
Il mio lavoro `e mirato allo studio delle propriet`a d’accrescimento delle sorgenti
protostellari di piccola massa. La ricerca si `e basata sull’uso di due diverse
tecniche osservative nel vicino infrarosso: la spettroscopia ad alta risoluzione e
l’interferometria. Dall’analisi di spettri VLT/ISAAC (R = 10000) di sei sorgenti
protostellari di Classe I, ho determinato la luminosit`a d’accrescimento e il
tasso d’accrescimento di massa degli oggetti, facendo uso della luminosit`a delle
righe Hi o attraverso la determinazione delle propriet`a stellari degli oggetti,
derivate dall’osservazione delle loro righe d’assorbimento fotosferiche. Solamente
due oggetti mostrano luminosit`a dominate dall’accrescimento, mentre nelle altre
sorgenti solo una piccola frazione della luminosit`a totale risulta dovuta a tale
processo, diversamente da quanto aspettato per sorgenti giovani di Classe I nella
fase principale di accrescimento. Questo risultato tende quindi a delineare uno
scenario in cui gran parte degli oggetti di Classe I sarebbero in realt`a sorgenti
che hanno gi`a accumulato la maggior parte della loro massa finale e quindi pi`u
evolute rispetto a quanto aspettato. Per le sorgenti che mostrano la presenza di
jet protostellari `e stato possibile calcolare il rapporto tra tasso di perdita di massa
(derivato da misure spettroscopiche sui jet) e il tasso di accrescimento. I valori
osservati si trovano (considerando le ampie incertezze) nell’intervallo 5%-200%,
da paragonare ai valori dell’ordine del 10% predetti dai modelli teorici.
Nella seconda parte del mio lavoro ho analizzato dati interferometrici acquisiti
con AMBER/VLTI, con l’obiettivo di misurare la grandezza della regione di emissione
delle righe Hi nella sorgente giovane Z CMa; si vuole cos`ı determinare se
queste righe, spesso utilizzate come traccianti del processo d’accrescimento, siano
emesse effettivamente dal gas nei flussi di accrescimento o se provengano invece
da un vento protostellare. Un semplice modello della sorgente `e stato sviluppato
sia per la preparazione delle osservazioni, sia per l’interpretazione delle misure.
Sfortunatamente, il rapporto segnale rumore molto basso che caratterizza i dati
(dovuto con tutta probabilit`a a problemi tecnici durante le osservazioni) permette
solo un’interpretazione di massima delle misure, le quali tenderebbero tuttavia ad indicare che le righe d’emissione dell’idrogeno provengono da un vento protostellare.
I metodi adottati per l’analisi dei dati hanno portato allo sviluppo di una
procedura di riduzione capace di filtrare segnali spuri dovuti al rivelatore, che
contaminano fortemente il segnale interferometrico in osservazioni caratterizzate
da flussi molto bassi. Questa procedura sar`a presto inserita nel paccheto software
ufficiale per la riduzione dati, distribuito dal consorzio AMBER.I present a work aiming at studying the accretion properties low mass embedded
protostars making use of two observational techniques: near IR
high resolution spectroscopy and inteferometry. Through the analysis of
VLT/ISAAC near infrared spectra (R = 10000) of a sample of six Class
I protostars, I have derived the accretion luminosity and mass accretion
rates of the objects, using either the luminosity of Hi lines or determining
the stellar properties from detection of the photospheric absorption lines.
Only two objects show accretion-dominated luminosities, while in the other
sources accretion accounts for only a smal fraction of the total luminosity,
in spite of what is commonly expected for Class I stars in the main accretion
phase. These findings therefore indicate a scenario where most Class I
objects are more evolved than expected and have actually already acquired
most of their mass. For sources displaying well developed jet-like structures,
the ratio between mass loss (derived from spectral measurements on the jet)
and mass accretion rates has been computed; the inferred ratios span (considering
the large uncertainties) in the range 5%-200%, to be compared with
a 10% value from theoretical models.
VLTI/AMBER observations have been analysed in the second part of
the work with the aim of measuring the size of the Hi line emission region
in the young source Z CMa, thus discriminating between an accretion
or wind origin for such emission lines, often used as a tracer for accretion.
A simple model of the source has been developed to derive the expected
visibility curves needed to plan the observations and interpret them. Unfortunately,
the very low signal-to-noise ratio characterising the data, most
probably due to technical problems during observations at the VLTI, allows
only a tentative interpretation of the measurements, which however tends to
indicate a wind origin of the emission. Nevertheless, the methods adopted
for the reduction of the AMBER data have led to the development of a reduction
procedure able to filter out spurious signals from the detector that
heavily bias this kind of very low flux data. This procedure will be soon
implemented in the official data reduction software of the instrument
Rozpor ako východisko, láska ako smer u Simone Weilovej (Contradiction as base, Love as direction in writings of Simone Weil)
Article is explaining contradiction and love, Simone Weil‘s essential terms of hermeneutics of human Being. It introduces close relation of these terms with her understanding of God as well as with her overall concept of religion. Author also mentions Simone Weil‘s inspirations with philosophical and spiritual concepts of the East
“I beg you to tell me what has become of Djamila”: The Political Mobilization of Simone de Beauvoir’s Readers During the Boupacha Affair
By Sophia Millman This is a condensed version of a Masters thesis dedicated to the political mobilization of Simone de Beauvoir’s readers. The citations from the letters were translated from French by the author. *** On June 2, 1960, the French government ordered all copies of the daily Algiers edition of Le Monde seized and destroyed to suppress the publication of Simone de Beauvoir’s article “Pour Djamila Boupacha.” Beauvoir, a self-professed “woman of letters”, not “of action[1]”, and one ..
A comparative study of form and theology in the works of Flannery O'Connor and Simone Weil
In this comparative study of the form and theology of Flannery O'Connor and Simone Weil I interrogate how Weil's philosophical writings and her theology illuminate O'Connor's use of both narrative and non-fictional forms, and her Catholicism. The Introduction analyses how Weil's concept of superposed reading provides a new method of approaching both O'Connor, her writings, and O'Connor
studies, and focuses on how such apparently different women interconnect. Chapter One explores how both Weil and O'Connor attempt to write their theologies on the
souls of their readers yet are each subject to constraints imposed by form. Weil's concept of locating equilibrium between incommensurates is discussed, and her
distinctively philosophical approach to fictions and fictionality is used to investigate O'Connor's notion of prophetic fictions and the writer's role. Chapter Two assesses how both writers revivify Christian paradoxes. Weil's monstrous concept of affiiction, and O'Connor's use of the grotesque genre to jolt secular man into an
awareness of the sacred are scrutinised. Chapter Three studies how both writers consider an encounter between God and man is possible through the action of grace. My Conclusion interrogates how Weil's work can deepen our understanding of O'Connor's writings, and examines how successful O'Connor is at realising a truly
Christian literature. I conclude that despite being a writer of powerful fictions, O'Connor can not be totally successful in her mission as writer-prophet because
ultimately fiction escapes orthodoxy
Microlinices benthovus Simone 2014
benthovus, Microlinices Simone, 2014 Microlinices benthovus Simone, 2014: 575–578 (figs 6A–J, 7A–H, 11A–C). Gastropoda, Naticidae Paratypes (22 spc): MZSP 105269. Paratypes 1 (15 spc): MZSP 105270. Paratypes 2 (16 spc): MZSP 105271. Paratypes 3 (7 spc): MZSP 105272. Localities: Brazil, Espírito Santo, off Itaúnas, Abrolhos Slope, 18°59' S, 37°50' W, MD55 sta. DC 73, 637 m depth, 27 May 1987; 1) 19°00' S, 37°48' W, MD55 sta. DC72, 950– 1050 m, 27 May 1987; 2) off Regência, 19°40' S, 37°48' W, MD55 sta. CB77, 790– 940 m depth, 27 May 1987; 3) off Itaúnas, Abrolhos Slope, 19°01' S, 37°47' W, MD55 sta. CB79, 1500–1575 m depth, 28 May 1987. Collectors: P. Bouchet, J.H. Leal and B. Métivier. Preservation: Dry. Remarks: Former MNHN, Paris. The catalogue number MZSP 105250 is mentioned twice in Simone’s (2014) paper, among the paratypes of M. ibitingus Simone, 2014 and M. benthovus. This duplicity was a mistake by the author: the latter is an erroneous designation and should be disregarded. The only valid paratype lots for M. benthovus are the ones shown above.Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on page 10, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/384012
Was bringt die Föderalismusreform? Wahrscheinliche Effekte der geänderten Zustimmungspflicht
The recently enacted reform of German federalism is supposed to make legislation faster, more efficient and better. To what extent are these expectations justified? In order to assess the likely effects of the reform, this study uses a research design that was recently applied by the Research and Reference Services of the German Bundestag (parliament): we estimate the future effects of the reform by analyzing the impact it would have had on the legislation in the 14th and 15th term of the Bundestag if it had already been been in force at that time. In particular we ask: To what extent would the number of laws requiring the consent of the states' chamber, the Bundesrat, have been reduced? Which type of laws would have been affected by this reduction - the more controversial ones, or the less controversial ones? Which policy sectors would have seen the greatest reduction? How much would the reduction have increased the government's capacity to act effectively? Would the legislative process have been accelerated? -- Die verabschiedete Föderalismusreform soll die Gesetzgebung in Deutschland schneller, effizienter und besser machen. Inwiefern sind diese Erwartungen berechtigt? Zur Abschätzung der Reformfolgen auf die Bundesgesetzgebung folgen wir in dem vorliegenden Working Paper einer Vorgehensweise, die der Wissenschaftliche Dienst des Bundestages kürzlich in einer Studie angewandt hat: Die Auswirkungen der Föderalismusreform insbesondere auf die Zustimmungspflicht werden anhand der Gesetzgebung der 14. und 15. Legislaturperiode untersucht. Wir fragen insbesondere: Wie stark hätte sich der Anteil der Zustimmungsgesetze verringert, wenn die neuen Zustimmungsregeln schon in diesen beiden Legislaturperioden gegolten hätten? Wären eher zwischen Regierung strittige oder unstrittige Gesetze von der Zustimmungspflicht befreit worden? Welche Politikbereiche wären betroffen? Wie sehr hätte sich die politische Handlungsfreiheit der Bundesregierung erhöht? Wäre die Gesetzgebung durch die veränderten Zustimmungsregeln beschleunigt worden?
Idea ofiary u Simone Weil
Autorka omawia ofiarę, jaką z samej siebie złożyła Simone Weil. Głównym celem autorki artykułu jest wykazanie, iż idea ofiary była najważniejszą myślą w życiu francuskiej filozof. W artykule ukazano myśl o ofierze w życiu i pismach intelektualistki, jak również analogie, które rzucają nowe światło na ofiarę Weil. Jako klucz do interpretacji i zrozumienia ofiary Weil, autorka analizuje myśl Emmanuela Levinasa oraz Józefa Tischnera.The author interprets the sacrifice that Simone Weil filed with itself. The main point of the present article is the assumption that the sacrifice Simone Weil was the most important idea of her life. A thought about the victim is portraying the article in the life and letters of the intellectual, as well as is portraying analogies which are shedding new light on the Weil victim. As the key to interpretation and understanding the her victim, the author is analysing the thought of Emmanuel Levinas and Jozef Tischner.Udostępnienie publikacji Wydawnictwa Uniwersytetu Łódzkiego finansowane w ramach projektu „Doskonałość naukowa kluczem do doskonałości kształcenia”. Projekt realizowany jest ze środków Europejskiego Funduszu Społecznego w ramach Programu Operacyjnego Wiedza Edukacja Rozwój; nr umowy: POWER.03.05.00-00-Z092/17-00
My life on the road: the exhilarating experience of travel
VERSION FRANÇAISE ICI By Tiphaine Martin Researcher at Babel, University of Toulon, Member of the editorial board of Simone de Beauvoir Studies and author of a doctoral dissertation about Simone de Beauvoir's travels Translated from French by Marine Rouch (under the kind supervision of her dear friend Daniel Sawyer) I will begin with a brief criticism of the French edition. While the translation is very pleasant and captures Gloria Steinem's fluidity, humor and appetite for life, there is no..
Problematiche dell’indotto Fiat di Cassino: proposte per la valorizzazione delle PMI e il rilancio del territorio. Un modello di intervento per rilanciare il sistema
GATTI M., GATTI C., PROIETTI L., SIMONE C., Problematiche dell’indotto Fiat di Cassino: proposte per la valorizzazione delle PMI e il rilancio del territorio. Un modello di intervento per rilanciare il sistema produttivo di Cassino, Bic Notes – Quaderni di Bic Lazio, Numero Speciale, 2006, 9-152
Volume senza attribuzioni ai singoli AutoriM. CATS, CATS C., L. Proietti, SIMONE C. Issues industries Fiat Cassino: proposals for the development of SMEs and the revitalization of the area. A model of intervention to revive the productive system of Cassino, Bic Notes - Papers Bic Lazio, Special Issue, 2006 9-152 Volume without attribution to individual author
Simone de Beauvoir en España: sus obras traducidas y su recepción en la prensa
In the times of the restrictive socio political and cultural Franco context, our author’s presence went progressively growing as the prohibitions were loosed, becoming a plain and visible presence during the Transition times if we take into account her reception in the Spanish edition world and in the Press. Considering, on one hand, first the high number of her works (re) editions as well as, afterward, the new Second Sex translation into Spanish (1999, 2005) and, on the other hand, the good and very good valuation (obviously unequal according to the ideology) of the Press, our author is now a classic in our country. It is true that in some Humanities fields her consecration is irrefutable since she is of compulsory mention, nevertheless in the Literary Studies she hasn’t benefited of the same chance. Still enduring the accusations of misoginy and those of defending masculine values –some long time accusations since they go back to the publication of the Second Sex in France, and after taken on the behalf of the postmodern French feminism–, new times in the reception of Simone de Beauvoir can be predicted since Julia Kristeva claims for the (Re) discovering of Simone de Beauvoir...En los tiempos del contexto socio político y cultural tan restrictivo, la presencia de Simone de Beauvoir fue gradualmente incrementándose a medida que el régimen totalitario relajó las prohibiciones, para llegar a ser total a partir de la Transición a tenor de su acogida en el mundo editorial y periodístico. Pues, por un lado, primero por el ingente número de ediciones y reediciones de sus obras, así como, posteriormente, por la nueva traducción al castellano del Segundo Sexo en Cátedra (1999, 2005) y, por otro lado, por su valoración –eso sí, desigual en función de la ideología– de la prensa, nuestra autora es ya un clásico en nuestro Estado. Si bien es cierto que en determinados ámbitos del saber su consagración es irrefutable, en los Estudios Literarios, sin embargo, no ha tenido la misma suerte por pesarle todavía una desconsideración motivada por las acusaciones de misoginia y de ensalzamiento de los valores masculinos, desconsideraciones surgidas ya con la publicación del Segundo Sexo y retomadas posteriormente por cuenta del feminismo postmoderno francés. Ahora bien se auguran nuevos aires en la recepción de nuestra autora en este ámbito de estudio ya que la misma Julia Kristeva apunta a un (Re)descubrimiento de Simone de Beauvoir..
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