1,046 research outputs found
Introduction by Manuela Gieri
No full textIn the introduction to the volume, the author outlines the development of Italian cinema from its early days to the present
The infrared glow of the first stars
No full textKashlinsky et al. find a significant cosmic infrared background fluctuation excess on angular scales ≳50 arcsec that cannot be explained by instrumental noise or local foregrounds. The excess has been tentatively attributed to emission from primordial, very massive (Population III, hereafter PopIII) stars formed ≤ 200 Myr after the Big Bang. Using an evolutionary model motivated by independent observations and including various feedback processes, we find that PopIII stars can contribute <40 per cent of the total background intensity (νJν∼ 1–2 nW m−2 sr−1 in the 0.8–8 μm range) produced by all galaxies (hosting both PopIII and PopII stars) at z≥ 5. The infrared fluctuation excess is instead very precisely accounted for by the clustering signal of galaxies at z≥ 5, predominantly hosting PopII stars with masses and properties similar to the present ones
Author Correction: Association analyses of more than 140,000 men identify 63 new prostate cancer susceptibility loci
No full textCorrection to: Nature Genetics, 50, 928–936 (2018), https://doi.org/10.1038/s41588-018-0142-8, published online 11 June 2018.
In the version of this article initially published, the name of author Manuela Gago-Dominguez was misspelled as Manuela Gago Dominguez. The error has been corrected in the HTML and PDF version of the article.No Full Tex
La biografía de Manuela Cambronero
No full textManuela Cambronero’s biography has been a pending issue until now, given that her figure has not aroused interest and no studies which focus on clarifying her origins and chronology have been published. This information is essential as a starting point for any work on the author, which is why elucidating these unknowns through direct archive research is a sine qua non. Consequently, locating Manuela Cambronero’s baptismal, marriage and death certificates is the only reliable way to dispel any doubt about her provenance and to determine the exact places and dates of the trans-cendental events of her life.La biografía de Manuela Cambronero ha sido una cuestión pendiente hasta ahora, pues, como su figura no ha suscitado interés, no se han publicado estudios centrados en esclarecer su origen y su cronología. Esta información es esencial como punto de partida para cualquier trabajo sobre la autora, por lo que dilucidar estas incógnitas a través de la búsqueda directa en archivos se convierte en una condición sine qua non. En consecuencia, la localización de los certificados de bautismo, de matrimonio y de defunción de Manuela Cambronero es la única vía fiable para disipar las dudas sobre su procedencia y para concretar los lugares y fechas exactas de los eventos trascendentales de su vida
Manuela Sáenz en varios textos
No full textThis report is an attempt to analyze the narrative discourse order in the novel “La esposa del Dr. Thorne” (Dr. Thorne’s Wife) of the Venezuelan writer Denzil Romero, in the light of ¨Las cuatro estaciones de Manuela” (“The Four Seasons of Manuela”) of the American author Víctor W. von Hagen, and of “Manuela. Sus diarios perdidos y otros papeles”, (Manuela. Lost Diaries and Other Papers) of the Ecuadorian Carlos Álvarez Saá. This paper is a risky comparison between a book of fiction, presumably based on real facts, where Manuela’s eroticism is the central theme in Romero, the large literary chronicles issued by von Hagen and the compilation and discovery of alleged original and historic texts (letters and diaries) produced by Álvarez Saá. It is also a research exercise where, whimsically, what the official discourse says, as it may be viewed by the school of Venezuela or that of Quito, is mixed with the fictionalization of that discourse. It is, too, a possible vindication of Manuela Sáenz as a person and/or predominant character in the fights for the independence of America beyond her ¨circumstantial¨ relationship with Simón Bolívar. It is, to a certain extent, a look into how literary texts and the perceptions of history about a character (Manuela) tend to a “rearrangement” in present times and how there has been an attempt to consolidate the figure of Manuela Sáenz as a heroine, awarding a victory to what von Hagen calls “the school of Quito”.Si prese l’analisi dell’ordine discorsivo narrativo del romanzo dell’autore venezuelano Denzil Romero, La sposa del Dott.re Thorne, attraverso le comparazioni delle opere dell’autore statunitense Víctor W. Von Hagen, Le quattro stagioni di Manuela e dell’ autore ecuadoregno Carlos Álvarez Saá, Manuela, i suoi diari persi ed altre carte. È una comparazione azzardadata tra un libro di finzione, forse basato in fatti reali, dove l’erotismo della donna (Manuela) costituisce la tematica centrale, nell’opera di Romero, con la lunga cronaca letteraria che fa von Hagen e la compilazione e la scoperta di supposti testi originali e storici (lettere, diari) che fa Álvarez Saá. È un esercizio di ricerca dove si mescolano, in modo capriccioso, il campo d’attività del Venezuela o quello del Quito, e la finzione di quello ufficiale. È anche la rivendicazione possibile di Manuela Sáenz come persona e/o personaggio preponderante nelle lotte indipendentistiche dell’America che era aldilà della relazione congiunturale con Simón Bolívar. Si vuole vedere, fino a un certo punto, come i testi letterari e le percezioni della storia su un personaggio (Manuela) tendono a sistemarsi con i tempi attuali e come si ha voluto affiancare la figura eroica di Manuela Sáenz, concedendole il trionfo, forse secondo la tesi di von Hagen: quella che lui definisce la scuola di Quito.Se pretendeu analisar a ordem discursivo-narrativa do romance do venezuelano Denzil Romero, “La esposa del Dr. Thorne”, à luz das obras do americano Víctor W. von Hagen, ¨Las cuatro estaciones de Manuela” e do equatoriano Carlos Álvarez Saá, “Los diários perdidos de Manuela Sáenz y otros papeles”. Este trabalho é a comparação arriscada entre um livro de ficção, baseado aparentemente em fatos reais, no qual o erotismo da mulher (Manuela) é o tema central, em Romero, com a extensa crônica literária que lhe faz von Hagen e a recopilação e a descoberta de aparentes textos originais e históricos (cartas, diários) que faz Álvarez Saá. Também é um exercício de pesquisa em que, de maneira especial, se mistura o que diz o discurso histórico oficial, segundo seja visto pela escola da Venezuela ou a de Quito, com a visão dada pela ficção a esse discurso. É, ao mesmo tempo, um pouco a possível reivindicação de Manuela Sáenz como pessoa e/ou personagem preponderante nas lutas de independência da América que chegavam além do seu ¨controvertido¨ relacionamento com Simón Bolívar. É ver, de certa forma, como os textos literários a as percepções da história sobre uma personagem (Manuela) têm tendência a ¨se readaptar” nos tempos atuais e como se quis dar força à figura de heroína de Manuela Sáenz, dando uma vitória a ela na que, tal vez, von Hagen denomina “a escola de Quito”.Se pretendió el análisis del orden discursivo narrativo de la novela del venezolano Denzil Romero, “La esposa del Dr. Thorne”, a luz de las obras del estadounidense Víctor W. von Hagen, ¨Las cuatro estaciones de Manuela” y del ecuatoriano Carlos Álvarez Saá, “Manuela. Sus diarios perdidos y otros papeles”. Este trabajo es la comparación riesgosa entre un libro de ficción, basado presumiblemente en hechos reales, donde el erotismo de la mujer (Manuela) es el tema central, en Romero, con la larga crónica literaria que hace von Hagen y la recopilación y descubrimiento de presuntos textos originales e históricos (cartas, diarios) que hace Álvarez Saá. Es también un ejercicio de investigación donde de manera caprichosa se mezcla lo que dice el discurso histórico oficial, según sea visto por la escuela de Venezuela o de Quito, y la ficcionalización de ese discurso. Es también un poco la posible reivindicación de Manuela Sáenz como persona y/o personaje preponderante en las luchas independentistas de América que iban más allá de la ¨coyuntural¨ relación con Simón Bolívar. Es ver, hasta cierto punto, cómo los textos literarios y las percepciones de la historia sobre un personaje (Manuela) tienden a ¨reacomodarse” en los tiempos actuales y cómo se ha querido afianzar la figura de heroína de Manuela Sáenz, dándole el triunfo, tal vez, a lo que llama von Hagen “la escuela de Quito”
La biografía de Manuela Cambronero
No full textLa biografía de Manuela Cambronero ha sido una cuestión pendiente hasta ahora, pues, como su figura no ha suscitado interés, no se han publicado estudios centrados en esclarecer su origen y su cronología. Esta información es esencial como punto de partida para cualquier trabajo sobre la autora, por lo que dilucidar estas incógnitas a través de la búsqueda directa en archivos se convierte en una condición sine qua non. En consecuencia, la localización de los certificados de bautismo, de matrimonio y de defunción de Manuela Cambronero es la única vía fiable para disipar las dudas sobre su procedencia y para concretar los lugares y fechas exactas de los eventos trascendentales de su vida.Manuela Cambronero’s biography has been a pending issue until now, given that her figure has not aroused interest and no studies which focus on clarifying her origins and chronology have been published. This information is essential as a starting point for any work on the author, which is why elucidating these unknowns through direct archive research is a sine qua non. Consequently, locating Manuela Cambronero’s baptismal, marriage and death certificates is theonly reliable way to dispel any doubt about her provenance and to determine the exact places and dates of the trans-cendental events of her life
Cosmic dichotomy in the hosts of rapidly star-forming systems at low and high redshifts
No full textThis paper presents a compilation of clustering results taken from the literature for galaxies with highly enhanced (SFR ~= [30-103] M&sun; yr-1) star formation activity observed in the redshift range z = [0-3]. We show that, irrespective of the selection technique and only very mildly depending on the star-forming rate, the clustering lengths of these objects present a sharp increase of about a factor 3 between z ˜ 1 and z ˜ 2, going from values of ˜5 Mpc to about 15 Mpc and higher. This behaviour is reflected in the trend of the masses of the dark matter hosts of star-forming galaxies which increase from ˜1011.5 to ˜1013.5 M&sun; between z ˜ 1 and z ˜ 2. Our analysis shows that galaxies which actively form stars at high redshifts are not the same population of sources we observe in the more local universe. In fact, vigorous star formation in the early universe is hosted by very massive structures, while for z ≲ 1 a comparable activity is encountered in much smaller systems, consistent with the downsizing scenario. The available clustering data can hardly be reconciled with merging as the main trigger for intense star formation activity at high redshifts. We further argue that, after a characteristic time-scale of ˜1 Gyr, massive star-forming galaxies at z ≳ 2 evolve into z ≲ 1.5 passive galaxies with large (M* ~= [1011-1012] M&sun;) stellar masses
Author Correction:Association analyses of more than 140,000 men identify 63 new prostate cancer susceptibility loci
No full textIn the version of this article initially published, the name of author Manuela Gago-Dominguez was misspelled as Manuela Gago Dominguez. The error has been corrected in the HTML and PDF version of the article.</p
Sustainable Interventions for the Preservation of Earthen Heritage
No full textAbstractEarth is one of the most common material used for the construction of historical villages, whose conservation ensures the transmission of a technological culture that represents the landscape, as well as historical and architectural values. The preservation of this rich, but very fragile, heritage requires the development of projects that should be promoters of sustainable interventions, not only able to guarantee a limit in the consumption of resources, but also the start-up of local development processes, generating externalities that could significantly contribute to the preservation of tangible and intangible assets. As it concerns Piedmont earthen vernacular architecture the development of thematic itineraries could give a significant contribution to the enhancement of this cultural heritage
High-redshift star-forming galaxies and proto-clusters: an insight from clustering studies
No full text<p>One of the best ways to shed light on the possible links between high redshift<br>
proto-clusters and galaxy populations is to investigate the clustering<br>
properties of these latter ones as they provide a powerful<br>
method to constrain halo masses.<br>
In this talk I will present clustering results for galaxies with highly<br>
enhanced star-formation activity (SFR>30 Msun/yr) and will show that,<br>
at redshifts z>~1.5, irrespective of the selection technique and only very<br>
mildly depending on their SFR, they all reside in structures of masses ><br>
10^13.5 Msun, i.e. they are ubiquitously located in over-dense structures<br>
such as proto-clusters. A striking example of the above result is provided by<br>
the distribution of high-redshift star-forming galaxies in the GOODS-South as<br>
more than half of these sources is found to reside in an<br>
unvirialised, filamentary structure, centered at z~2.2, which extends all along the field. <br>
Our data indicate an enhanced star-forming activity for<br>
the galaxies belonging to the proto-cluster with respect to those in the field.<br>
Finally, we will also show how such structures are a rather common event<br>
in the epoch which coincides with the peak of star formation activity.</p>
<p> </p>
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