133 research outputs found
Sulla condizione Fixf=Fixf_2 per una applicazione f di un insieme totalmente ordinato in sé
No full textSi studia, in rapporto a questioni di convergenza globale del metodo
delle approssimazioni successive ed alla questione dell'esistenza
di un punto fisso comune a due applicazioni, la condizione Fix f=Fix
f; si forniscono, tra l'altro, condizioni equivalenti ad essa
e si ritrova, generalizzata, una nota proposizione relativa ai sistemi
dinamici discreti.The condition Fix f=Fix f_{2}
; is studied in relation to questions on global convergence of the successive approximations method, and to the question of the existence of a common fixed point for two applications. Other equivalent conditions for the same are proposed by the author. Using the notion of global convergence of the successive approximations method, the author is able to generalize a known proposition relative to discrete dynamical systems
El «Menologio de Basilio II» y el semestre invernal de la recensio B* del Sinaxario de Constantinopla
No full textStudio analitico (filologico e paleografico) dei testimoni manoscritti (a quelli in precedenza già noti l'autore aggiunge i codici Vaticani Barb. gr. 358 e Vat. gr. 2046), che tramandano il semestre invernale di una fra le più antiche recensioni del Sinassario di Costantinopoli, la cosiddetta recensio B*, volto a indagarne i rapporti esistenti col capostipite della recensio, il famosissimo libro miniato eseguito per Basilio II Bulgaroctono trasmesso nel ms. Vat. gr. 1613.Analytical study (philological and paleographic) of the manuscript witnesses (the author adds the Vatican codices Barb. gr. 358 and Vat gr. 2046 to those previously known), which hand down the winter semester of one of the earliest recensiones of the Synaxarion of Constantinople, the so-called B * recensio. This study aims to investigate the existing relations between these witnesses and the founder of the recensio, i.e. the famous illuminated book realized for Basil II "the Bulgar-slayer " handed on by the manuscript Vat gr. 1613
EMERGENCY COLO-RECTAL SURGERY IN PATIENTS OVER EIGHTY.
No full textBackground: Today average life expectancy in Western Countries has reached 80 years. At the same time, colorectal cancer (CCR) ranks first on both cancer incidence and related mortality. Therefore we face the problem of treating colorectal cancer occurring in elderly patients. Over the last years, there has been growing evidence in the literature that to this population should be offered life-prolonging radical surgeries. The aim of this study is to assess the clinical features and postoperative outcomes in 80 years old and older patients treated for colorectal cancer. We focused on safety (complication rates and operative mortality) and oncological results (radical excision and number of lymph nodes isolated).
Methods: From September 2011 to May 2015, 483 resections for CCR with curative intent were performed; 16 explorative laparotomy and 12 trans-anal resection were excluded. Four hundred and fifty-five patients were enrolled: 307 of them were younger than 80 years and 168 patients were 80 years old or older. Patients’ demographic, clinical and histopathological parameters, as well as intra- and perioperative results were analysed. Statistical analysis was performed with SPSS v13.0; significance was defined as p < 0.05.
Results: Significant differences between the two groups were observed regarding comorbidities (p<0.001), cardio-vascular comorbidities and chronic renal failure in particular, emergency presentation (p<0.001), intraoperative blood transfusions (p=0.015), laparoscopic approach (p=0.002) and mortality (p<0.001). No differences were observed between the two groups regarding the number of radical resection and number of lymph nodes isolated. However, multivariate logistic regression analysis showed that advanced geriatric age (≥80 years old) is an independent predictor of mortality (p=0.003 OR 4.756) but not an independent predictor of morbidity (p=0.669 OR 1.109); in particular, advanced geriatric age, emergency presentation and intraoperative blood transfusions are predictive of mortality; instead the presence of cardio-vascular comorbidities and emergency presentation, are independent predictor factors of morbidity.
Conclusion: Old age (≥80) as such does not represent a contraindication for CCR surgical treatment though associated with an increased risk of postoperative morbidity and mortality. In our opinion, patients who are appropriately evaluated and selected might have a favourable prognosis after undergoing colorectal resection
SURGERY FOR COLO-RECTAL CANCER: ADEQUACY OF NODAL STAGING IN AN EMERGENCY SETTING.
No full textBackground: It is a commonly held belief that in emergency surgery is not rare an inadequate lymphadenectomy resulting in pathologically understaged or indeterminate staging of the patient. Consequently some patients may not receive a necessary adjuvant chemotherapy or be subjected to unnecessary therapy.
Methods: From September 2011 to May 2015, 483 patients were admitted in our Unit with the diagnosys of colo-rectal cancer. Four-hundred and fifty-five underwent to radical resection and were enrolled in this study. One-hundred and fifty-seven patients (35%) required an emergency operation (Group 1) and 298 (65%) had elective surgery (Group 2). Patients information were entered into a database: age and sex, tumor site, type of resection, laparoscopic versus open approach, stage, number of nodes and adequacy of lymph-node harvest (adequacy >= 12 lymph-nodes harvested). Statistical analysis was performed with SPSS v13; significance was defined as p< 0,05.
Results: In Group 1, tumor sites were: right-sided 46%, left sided 45% and 9 % rectum. In Group 2, tumor sites were right-sided 38%, left sided 31% and 31 % rectum. These differences were statistically significant. The number of nodes harvested was similar in the two groups (Group 1: 18,3±9,2 nodes; Group 2: 18,7±10,1 nodes, p=0,97). The adequacy of lymph node harvest was 95% in Group 1 and 89% in Group 2. Thus the adequacy of lymphadenectomy was better in Group 1, however these differences were not statistically significant (p=0,60). The number of nodes harvested and the adequacy of lymphadenectomy were not influenced by the type of surgical approach (laparoscopic versus open surgery). Group 1 patients had a more advanced cancer stage (stage III/IV 47,1% vs. 36,0%, p=0,0006), but the need for enlarged resection was not significantly different in the two groups.
Conclusions: Our data didn’t show significant differences in nodes harvesting in emergency colo-rectal surgery compared to elective surgery. Adequacy of lymphadenectomy is comparable in the two settings
Impact of octogenarians on surgical outcome in colorectal cancer
No full textAim Colorectal cancer's (CRC) incidence occupies the second place among malignant tumours in men and the third place in women. The aging of the population raises new questions on the management of CRC in octogenarian patients. The objective of this study was to assess the influence of age (≥80) on treatment and surgical outcome of colorectal cancer. Method In the period between October 1995 and April 2014, a total of 1397 patients underwent emergency and elective surgical interventions for CRC; the first group (Group-Older – GO) was composed of 291 patients 80 years or older (20.9%, of which 46.4% were male). The second group (Group-Younger – GY) included 1106 patients younger than 80 years (79,1%, 57.7% males). Results Significant differences between the two groups were observed regarding sex (p = 0.001), number of comorbidities (p = 0.001), ASA classification (p < 0.001), emergency presentation (p < 0.001), site of tumor (p = 0.010), need of intraoperative blood transfusions (p < 0.001), 30-days mortality (p < 0.001), 90-days mortality (p < 0.001) and morbidity in accordance with Clavien-Dindo classification (p < 0.001). When combining both elective and emergency procedures, multivariate logistic regression analysis showed that advanced age (≥80 years old) was an independent predictor factor of 30-days mortality (p = 0.023, OR = 2.23) and morbidity (p = 0.088, OR = 1.31), while it was not predictive of 90-days mortality. When considering only elective colorectal surgery, octogenarian age was not found to be a predictive factor of 30-day and 90-day mortality, but predictive of postoperative morbidity. Conclusion Old age (≥80) does not represent a contraindication to CRC elective surgical treatment, in emergency procedures it is associated with an increased risk of postoperative morbidity and mortality
TIMING CHIRURGICO NELLA COLECISTITE ACUTA LITIASICA: LA SCELTA DI UN INTERVENTO AL DI FUORI DELLE LINEE GUIDA DI TOKIO DEL 2013
No full textLa poesía de Basilio Fernández: El esplendor y la amargura
No full text[spa] El trabajo analiza la obra poética de Basilio Fernández, un autor creacionista, discípulo de Gerardo Diego, que, tras publicar algunos poemas en revistas de vanguardia de los años 20 y 30 en España e Italia, se sume, hasta su muerte, en un ejercicio secreto de la poesía. Basilio Fernández aunó el vanguardismo de su juventud y el existencialismo de su madurez, y alumbró una poesía en la que la metáfora, la aliteración y la fantasía se conciertan para expresar su dolor por haber renunciado a su destino –a su condición de escritor– y, por ende, a los ideales de juventud: la libertad, el amor y la literatura.
La tesis incorpora una biografía del poeta, cuya principal fuente de información son los trabajos publicados por su sobrino Emiliano Fernández. Atiende, en particular, a los hechos de su juventud y primera madurez, hasta principios de los años 40, esenciales para configurar su fibra moral, su sensibilidad estética y su proyecto literario, como su relación con Gerardo Diego, profesor suyo en el Instituto Jovellanos de Gijón, y con Luis Álvarez Piñer, compañero de estudios y alumno, asimismo, de Diego.
La tesis fija, asimismo, el corpus poético de Basilio Fernández, integrado por unos 140 poemas. Ni las dos ediciones de su poesía completa, de 1991 y 1992, ni las dos antologías de su obra, de 2007 y 2009, incluyen todos los poemas que escribió, algunos de los cuales permanecen inéditos en el archivo personal de Gerardo Diego.
La tesis analiza la obra de Basilio Fernández, creacionista, existencial, órfica y biográfica. En tanto que poesía creacionista, esgrime el poder alumbrador de la metáfora y de la imaginación errabunda. La libertad asociativa del surrealismo, que le acompañará indeclinablemente, es objeto de un examen pormenorizado.
El carácter existencial de su obra, de inspiración barroca y romántica, pero exacerbado por el nihilismo contemporáneo, se refleja en la evocación del pasado, la preocupación por el paso del tiempo, el canto a lo perdido, el tedio de los días y el sinsentido de la vida, plasmados en algunos motivos recurrentes: el ubi sunt, el agua estancada, el río que pasa, y la caída, desdoblada, a su vez, en la hoja seca y la torre inclinada. El sentido existencial se proyecta también en la sociedad, que el poeta considera corrompida y fútil. Frente a los oprobios de la vida, sus únicos consuelos son el amor y Dios, aunque el primero es solo un recuerdo que se diluye en el caminar inexorable hacia la muerte. Únicamente el amor a Dios le ofrece la esperanza de una existencia sin sufrimiento.
La poesía de Basilio Fernández es órfica, porque cree en la naturaleza vivificadora de la palabra y canaliza el descenso a los infiernos de su intimidad, que revela su insatisfacción y su dolor.
Finalmente, es también biográfica, por cuanto los hechos y decisiones de la vida del poeta determinan el tono y el propósito de su obra, y porque sus circunstancias personales se transparentan en un amplio abanico de símbolos, analogías y opciones léxicas.
El trabajo analiza el aparato simbólico, los mecanismos constructivos, los recursos estilísticos –anáfora, similicadencia, paradoja, aliteración, personificación y metáfora– y el cuerpo de pensamiento que integran la poesía de Basilio Fernández. También, algunas claves de su formación, visibles en el recurso a la métrica y la en intertextualidad. Se presta una atención singular a todos aquellos motivos o expresiones que den cuenta del conflicto existencial, y se subraya su dimensión vitalista, que opone al sentido de la declinación y la muerte una palabra sensorial y luminosa, una permanente celebración de la materia.[eng] "BASILIO FERNÁNDEZ’S POETRY: SPLENDOR AND BITTERNESS", The thesis analyzes Basilio Fernández’s poetic work. As a disciple of Gerardo Diego, he was a creationist author, who, after publishing several poems in avantgarde magazines in the 1920’s and early 30’s in Spain and Italy, went into silence for the rest of his life, although he never quitted writing poetry, secretly. Basilio Fernández combined the avantgarde spirit of his youth and the existentialism of his adulthood, and brought about a poetry in which metaphor, alliteration and fantasy joined in order to express his pain for having given up his destiny –becoming a writer– and, hence, having forsaken his purest ideals and wishes: freedom, love and literature.
The thesis includes a biography of the poet, which focuses on his youth, until the early 1940’s, which is essential to understand his moral attitudes, his aesthetic sensitivity and his literary project: mainly, his relationship with Gerardo Diego, who was his teacher and mentor in Gijón, and with Luis Álvarez Piñer, his classmate and friend, and also a Diego’s disciple.
The thesis also determines Basilio Fernández’s poetic corpus, with around 140 poems, some of which have never been published yet.
Basilio Fernández’s poetry is creationist, existential, orphic and biographic. He believes in the creative power of image. The freedom of association, inspired by surrealism, has a significant presence in it. As a existentialist writer, he is overwhelmed by the passage of time, the memory of the past, the lost world of his youth and the spleen of his current life. Some motives reflect all these concerns: the ubi sunt, the stagnant waters, the flowing river and the notion of falling –i. e., the dry leaf and the leaning tower. Human society is also corrupt. His only reliefs are love and God, although love is just a vanishing memory. God alone offers hope and consolation.
Basilio Fernández’s work is orphic, since it believes in the power of language to bring what is dead back to life and to carry out a true descensus ad inferos, which reveals the poet’s unsatisfaction and suffering. It is also biographic, for the facts of the poet’s life determine the substance and purpose of his poetry
PURISMO, CLASSICISMO E ILLUMINISMO NELLA PEDAGOGIA LINGUISTICA DI BASILIO PUOTI
No full textIl contributo richiama l’attenzione sui principi ispiratori e i metodi didattici della celebre scuola di lingua italiana fondata a Napoli nel 1825 da Basilio Puoti. Nonostante le affinità del puotismo con l’indirizzo arcaizzante e normativo imposto dal capofila del purismo ottocentesco, il p. Antonio Cesari, una rilettura delle opere di Puoti e delle testimonianze lasciateci dai suoi allievi diretti fanno emergere la rilevanza dei tratti distintivi del suo insegnamento, riassumibili nell’etica civile, di ascendenza illuministica, e nell’orientamento retorico, di stampo classicista, che lo improntarono. L’educazione al dialogo e al lavoro in comune, l’allargamento del canone degli scrittori da proporre ai giovani (non solo letterati, ma scienziati, storici, filosofi, giuristi) e le cure rivolte all’insegnamento della scrittura come allenamento all’esercizio della chiarezza e dell’efficacia espressive – per l’indissolubile rapporto che lega parola e pensiero – fanno di Puoti un autore su cui tornare a riflettere e a discutere.
Purism, classicism and illuminism in the language teaching of Basilio Puoti
This paper draws attention to the principles and teaching methods of the famous Italian language school founded in Naples in 1825 by Basilio Puoti. Despite the similarities between “Puotismo” with the archaic, regulatory guidelines of the nineteenth-century purism leader, Antonio Cesari, re-reading Puoti’s works and the testimonies left by his students bring out the relevance of the hallmarks of his teaching: civil ethics, derived from the Enlightenment, and a Classical orientation. Focused on dialogue and group work, the broadening of the canon of writers to propose to students (not only authors of literary texts, but scientists, historians, philosophers, jurists) and the care given to the teaching of writing to practice expressive clarity and effectiveness – due to the indissoluble relationship between speech and thought – make Puoti an author to go back to, reflect on and discuss
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