1,721,002 research outputs found
La rimaterializzazione della fotografia nell’era digitale: il caso dei polaroider
No full textThe digitalisation of photography has often been interpreted as a process of dematerialisation. However, empirical studies show that the material dimension is still fundamental to digital photographic practices. By accepting the argument that digitalisation prompted a reconfiguration of photography's materiality, rather than its disappearance, this article examines a phenomenon that has developed on the periphery of, but relating to, digital photography: the reappropriation of analogue technology by 'serious' amateurs. By using data collected during a study on the reappropriation of Polaroid technology, this contribution traces some patterns in the reintegration of materiality within amateur practice, showing how photographers have redefined the role of objects as a reaction to the spread of digital photography
[Alternative procedure in the treatment of unresectable solid tumors in children].
No full textDescrizione di procedure alternative nel trattamento dei tumori solidi infantil
Low-dose helical chest CT in asbestos-exposed workers in the Veneto Region: preliminary results.
No full textPURPOSE:
To evaluate the preliminary results of low-dose helical chest CT in a group of individuals with an occupational exposure to asbestos.
MATERIALS AND METHODS:
Between October 2000 and May 2004, 1,512 asymptomatic subjects, selected by Occupational Health physicians of the Veneto Region among those with a significant exposure to asbestos, underwent low-dose helical chest CT without contrast media administration. According to their features, all pulmonary nodules identified underwent pathology, further CT evaluation or follow-up with low-dose CT.
RESULTS:
Apart from benign pleural findings (in 40% of subjects), 590 pulmonary nodules were identified. Eleven nodules underwent pathologic examination, which detected 5 malignant lesions, and 51 were evaluated with other CT techniques, in all cases demonstrating benign features. In follow-up low-dose CT scans, performed in the remaining 528 nodules, a minimal increase in size occurred in 4 cases only.
CONCLUSIONS:
Screening for clinically relevant pulmonary lesions in asymptomatic people with occupational exposure to asbestos may be useful if rigorous enrollment criteria are adopted. The management of abnormal findings is cost-effective if it is based on the morphological features of each finding
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Comparison of CT features of Aspergillus and bacterial pneumonia in severely neutropenic patients.
No full textPURPOSE: To establish whether a relationship exists between computed tomography features of lung opacities in severely neutropenic patients and their Aspergillus or bacterial etiology. METHODS: Computed tomography scans of 124 patients with lung opacities larger than 5 mm occurring during severe (neutrophils 7 d) neutropenia-induced by bone marrow transplantation and/or high-dose chemotherapy for hematologic malignancies-were reviewed. Invasive pulmonary aspergillosis or bacterial pneumonia were assessed by means of bronchoalveolar lavage, bronchial washing, trans-bronchial biopsy or (for bacteria only) blood cultures. Pulmonary opacities were classified as nodules or as consolidations. The presence of a perinodular ground-glass halo, the similarity of consolidations to a pulmonary infarction and the presence of cavitation (crescent-shaped or not) were recorded. RESULTS: Invasive pulmonary aspergillosis was diagnosed in 68 patients; bacterial pneumonia in 56. Nodules (85) were more common than consolidations (39); their distribution among the patients with aspergillosis (52 nodules and 16 consolidations) and those with bacterial pneumonia (33 nodules and 23 consolidations) was even. Out of the 19 nodules surrounded by a halo 17 were due to aspergillosis. Nine consolidations (3 due to aspergillosis) were infarctionlike shaped. Cavitation appeared during 22/68 aspergillosis and 31/56 bacterial pneumonias; an air-crescent in 6 patients with aspergillosis and in 24 with bacterial pneumonia. CONCLUSIONS: Although rare enough, the perinodular halo is highly specific for invasive aspergillosis. The nodular pattern of lung opacities, their similarity to a pulmonary infarction, the occurrence of cavitation and the air-crescent are not related to aspergillosis
Acoustic Radiotion Force Impulse Imaging-from Physical and Anatomical Bases to Clinical Applications through Experimental Models
No full textPoster (Physic and Basic Science E102
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
A case of multiple intestinal atresias, brain anomalies, mental retardation, growth hormone deficiency and clitoris hypertrophy.
No full textSurgical treatment of necrotizing enterocolitis: when? how?
Full text linkIn 10 years (1981 - 1990) 28 out of 54 neonates (51.8%) with definite necrotizing enterocolitis (NEC) underwenl surgery. Operation was performed al 13.5 ± 8.8 (range 3 38) days of lifc, after 1.7 f 1.5 (range 1 --6) days from the onset of symptoms. Aiming to perform laparotomy before the occurrence of perforation, surgery was liberally indicated in stage IIIa, according to Walsh-Kliegman. Explorative laparotorny (+pcritoneal drainage in 2 cases) was performed in 4 patients with massive intestinal necrosis: all died within 3 days of surgery. In one neonate, only pneumatosis was present and resection was not considered mandatory. Intestinal resection and enterostorny was performed in 17 neonates, 5 of them with perforation; three developed an intestinal stenosis. 6nterostomy was closed after 116.2 f 61.8 days (range 26--193); 11 patients (64.7%) are long-terni survivors. Intestinal resection and primary anastomosis was performed in 6 babics, 3 of them with perforation. Postoperatively, 2 dehiscences and 1 stenosis avere recorded, but all children survived. In our opinion, resection followed by primary anastomosis seans to bc the most salisfactory surgical optio
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