Search results for " (IR)"

Prognostic factors in the treatment of Ewing's sarcoma

1987

From 1981 up to February 1985, a total of 93 protocol patients entered the study CESS 81. The protocol recommended an initial 18-week period of polychemotherapy (VACA) followed by local therapy and two additional cycles of chemotherapy. Local therapy consisted either of radical surgery or of incomplete resection plus postoperative irradiation with 36 Gy or of radiotherapy alone (46 and 60 Gy). Centrally located lesions were always irradiated with 60 Gy. This article summarizes the data after 5 years. Data of 93 patients were analysed in October 1986 after a median follow-up of 37 months. The projected 5-year survival is 50%. The relapse rate was 42%, distant relapses occurred in 19%, local …

Study of scintillation light collection, production and propagation in a 4 tonne dual-phase LArTPC

2020

The $3 \times 1 \times 1$ m$^3$ demonstrator is a dual phase liquid argon time projection chamber that has recorded cosmic rays events in 2017 at CERN. The light signal in these detectors is crucial to provide precise timing capabilities. The performances of the photon detection system, composed of five PMTs, are discussed. The collected scintillation and electroluminescence light created by passing particles has been studied in various detector conditions. In particular, the scintillation light production and propagation processes have been analyzed and compared to simulations, improving the understanding of some liquid argon properties.

OLTRE L’UMANO. APOCALISSI E COSMOGONIA NEL PIANETA IRRITABILE DI PAOLO VOLPONI

2021

Il saggio rilegge "Il pianeta irritabile" come storia di una cosmogonia, in cui le istanze fantascientifiche convivono con le ragioni allegoriche e con le suggestioni dell’antropologia. "Il pianeta irritabile" ha inizio dopo una catastrofe atomica, quando un diluvio di acqua, petrolio, sabbia e madreperla cancella il «vecchio ordine» basato sulla sovranità dell’umano e sulla logica artificiale del capitale. Il nano Mamerte, l’oca Plan Calcule, l’elefante Roboamo, sotto la guida del babbuino Epistola, compiono un viaggio alla ricerca di una possibile salvezza. Il passaggio dal caos dell’apocalisse alla rifondazione di un’«immortalità selvaggia» è scandito da prove iniziatiche, da lotte e da …

«INTELLIGENTE, IRONICA». OLTRE IL MATRIARCATO, LA DONNA IN ALCUNE OPERE DI LEONARDO SCIASCIA

2021

Intelligente e ironica. Così appare al pittore protagonista del romanzo Todo modo la donna che lascia il marito nello spiazzale antistante L’Eremo di Zafer. Il tempo di uno sguardo, di una breve sequenza. Tuttavia il suo rilievo espressivo travalica la pagina per andare, insieme a tanti piccoli tasselli narrativi di altri racconti, a comporre un’inedita rappresentazione del personaggio femminile. E ciò assume un significato particolare se facciamo attenzione per un momento alle date, se consideriamo per esempio che l’anno di pubblicazione di Todo modo è lo stesso 1974 in cui lo scrittore rilascia la famosa intervista a Franca Leosini che tanto scandalo ha suscitato soprattutto fra le fem…

2020

Recent experiments have demonstrated the formation of free-standing Au monolayers by exposing the Au–Ag alloy to electron beam irradiation. Inspired by this discovery, we used semi-empirical effective medium theory simulations to investigate monolayer formation in 30 different binary metal alloys composed of late d-series metals such as Ni, Cu, Pd, Ag, Pt, and Au. In qualitative agreement with the experiment, we find that the beam energy required to dealloy Ag atoms from the Au–Ag alloy is smaller than the energy required to break the dealloyed Au monolayer. Our simulations suggest that a similar method could also be used to form Au monolayers from the Au–Cu alloy and Pt monolayers from Pt–…

Padure (Beltes) piliakalnio (Latvija) osteologinė medžiaga: rūšių pasiskirstymas ir skerdimo technologija

2013

In the excavated Padure (Beltes) hill-fort in Latvia, cultural layers from the Late Bronze Age and the Early Iron Age (Stage 1), and the Middle Iron Age and the Late Iron Age (Stage 2), were detected, which, besides the archaeological material typical of that period, provided abundant zooarchaeological material. This article presents the investigation data from the zooarchaeological material of both stages: the data relate to the butchering techniques used, and the identification of the composition of the faunal species. The investigation was carried out in the bioarchaeological laboratory of the Institute of Baltic Region History and Archaeology at Klaipėda University. As is proven by the …

Growth and water relations of field-grown ‘Valencia’ orange trees under long-term partial rootzone drying

2017

Climate, soil water potential (SWP), leaf relative water content (RWC), stem water potential (WPstem), stomatal conductance (g s), trunk, shoot and fruit growth of ‘Valencia’ orange trees were monitored during five consecutive seasons (2007–2012) to study water status and growth responses to irrigation placement or volume. 48 adult trees were exposed to conventional irrigation (CI, 100% of crop evapotranspiration on both sides of the rootzone), partial rootzone drying (PRD, 50% of CI water only on one alternated side of the rootzone) and continuous deficit irrigation (DI, 50% of CI water on both sides of the rootzone). Reducing irrigation volumes by 55% (DI) over CI increased leaf water def…

Iron-dependent erythropoiesis in women with excessive menstrual blood losses and women with normal menses

2013

In women of fertile age, iron loss consequent to excessive menstrual discharge is by far the most frequent cause of iron-deficient anemia. However, the relationship between menstrual discharge and iron loss is poorly understood. In this prospective study, total menstrual and iron losses were assayed in a large cohort of non-anemic women and women with excessive menstrual blood losses (menorrhagia) in order to provide data useful for intervention. One hundred and five Caucasian women aged 20–45 years were recruited. Blood cell count and serum ferritin (SF) levels were determined in each case before menses. Menstrual fluid losses (MFL) were determined using a standardized pads’ weight method.…

Dosimetric effect of respiratory motion on planned dose in whole-breast volumetric modulated arc therapy using moderate and ultra-hypofractionation.

2021

Abstract Background and purpose The interplay effect of respiratory motion on the planned dose in free-breathing right-sided whole-breast irradiation (WBI) were studied by simulating hypofractionated VMAT treatment courses. Materials and methods Ten patients with phase-triggered 4D-CT images were included in the study. VMAT plans targeting the right breast were created retrospectively with moderately hypofractionated (40.05 Gy in 15 fractions of 2.67 Gy) and ultra-hypofractionated (26 Gy 5 fractions of 5.2 Gy) schemes. 3D-CRT plans were generated as a reference. All plans were divided into respiratory phase-specific plans and calculated in the corresponding phase images. Fraction-specific d…

Structural characterization of iron oxide/hydroxide nanoparticles in nine different parenteral drugs for the treatment of iron deficiency anaemia by …

2013

Drug products containing iron oxide and hydroxide nanoparticles (INPs) are important for the treatment of iron deficiency anaemia. Pharmaceuticals prepared by the complexation of different kinds of INPs and carbohydrates have different physicochemical and biopharmaceutic characteristics. The increasing number of parenteral non-biological complex drugs (NBCD) containing iron requires physicochemical methods for characterization and enabling of cross comparisons. In this context the structure and the level of crystallinity of the iron phases may be connected to the in vitro and in vivo dissolution rates, which etiologically determine the therapeutic and toxic effects. X-ray powder diffraction…