1,483 research outputs found
Link-Level Partial Checksum for Real-Time Video Transmission over 802.11 Wireless Networks
No full textI laboratori nel curricolo universitario di Scienze della Formazione Primaria. La didattica laboratoriale nella formazione iniziale delle future maestre di scuola primaria
No full textQuesta ricerca ha definito come tema d’indagine l’apprendimento/insegnamento della didattica laboratoriale nella formazione iniziale delle future maestre e maestri, individuando come significativo l’ambiente dei Laboratori che, nell’impianto tripartito tra insegnamenti, laboratori e tirocinio del Corso di Studi di Scienze della Formazione Primaria, appare essere quello in cui emerge maggiormente la dimensione pratico -esperienziale e senso percettiva propria della didattica laboratoriale e che per esplicito mandato istituzionale si pone l’obiettivo della trasmissione dei metodi attivi di insegnamento – apprendimento nei futuri maestri
Integrated Evaluation for the Management of Contemporary Cities
No full textThis book highlights a selection of the best papers presented at the 2016 SIEV conference “The Laudato sì Encyclical Letter and Valuation. Cities between Conflict and Solidarity, Decay and Regeneration, Exclusion and Participation”, which was held in Rome, Italy, in April 2016, and brought together experts from a diverse range of fields – economics, appraisal, architecture, energy, urban planning, sociology, and the decision sciences – and government representatives. The book is divided into four parts: Human Ecology: Values and Paradigms; Integral Ecology and Natural Resource Management; Intergenerational Equity; and How to Enhance Dialogue and Transparency in Decision-making Processes.
Cities are where 72% of all Europeans live, and this percentage is expected to rise to 80% by 2050. Given this trend towards urbanization, cities are continuously growing, which also entails a growing risk of social segregation, lack of security and mounting environmental problems. All too often, today’s cities have to cope with social and environmental crises, shifting the European urban agenda towards regeneration processes. Urban regeneration is more complex than merely renovating existing buildings, as it also involves social and environmental problems, inhabitants’ quality of life, protecting tangible and intangible cultural resources, innovation and business
David Audretsch: A Source of Inspiration, a Co-author, and a Friend
No full textIn this chapter, Enrico Santarelli discusses the profound impact that David had on his career. Beginning with a conference in Budapest, Santarelli and David bocame close friends and colleagues. They went on to collaborate on many papers and projects, several of which Santarelli highlights below
Dialogo con Enrico Palandri
No full textA conversation with Enrico Palandri aimed at contextualizing his work as an author
NASAL CARCINOSARCOMA IN TWO DOGS
No full textCarcinosarcoma (CS) is a rare tumor with still unclear histogenesis, composed by two cell types, epithelial and mesenchymal, both showing features of malignancy. It is rarely reported in animals, mostly in canine mammary gland1, more rarely in the head2, thyroid gland3 and other organs.
Aim of the work: to describe two cases of nasal carcinosarcoma, never previously reported in the dog
MAC-level partial checksum for H.264 video transmission over 802.11 ad hoc wireless networks
No full textWe present a technique to enhance real-time video transmissions over 802.11-based ad hoc networks. We propose to limit the coverage of the error detection mechanism to the most error sensitive bit class contained in video packets. Packets are retransmitted only if errors affect those bits, instead of retransmitting all corrupted packets irrespective of error positions. The expectation was that the negative effects of errors in the less sensitive bits should be more than adequately counterbalanced by the lower number of discarded video packets. Moreover, the lower number of retransmissions should reduce network load, with positive effects on all the transmissions. We simulated the transmission of H.264 video over an ad hoc scenario with a varying number of relay nodes using ns with experimental bit error traces. Results show consistent video quality improvements (up to 1 dB PSNR) as well as network load reduction with respect to state-of-the-art techniques, such as unequal error protection based on different retry limits
Immunosuppressant-Responsive Enteropathy and Non-Responsive Enteropathy in Dogs: Prognostic Factors, Short- and Long-Term Follow Up
No full textA multicentre prospective study was performed to assess whether clinical, hematobiochemical, endoscopic and histopathological parameters were associated with mortality, clinical response and relapse of disease in short- and long-term follow-up of a total of 165 dogs with chronic inflammatory enteropathy, of which 150 had immunosuppressant responsive enteropathy (IRE), and 15 had non-responsive enteropathy (NRE) dogs. Clinical severity (CCECAI) was evaluated from presentation (T0) to 18 months (T18) from diagnosis. T0 body condition score (BCS), selected haematological parameters and endoscopic and histopathological scores were evaluated. Presence/absence of histopathological duodenal lesions was recorded. Responders were evaluated using CCECAI at T1. Relapse was evaluated from T3 to T18. Long-term responders included dogs who responded at T1 and showed no relapse. Dogs were divided into responders/non-responders, survivors/non-survivors and relapsed/non-relapsed. At T1, 15/165 dogs (9%) were considered NRE. Sixteen dogs (11%) were considered relapsed at T3, 8% at T6 and 10% at T12, and none of 96 dogs relapsed at T18. NREs showed significantly lower BCS than IREs. Non-survivors showed a significantly lower serum albumin concentration and BCS than survivors. Non-responders, relapsed or non-survivors had higher presence of lacteal dilatation compared to long-term responders. Dogs with IRE showed a good clinical course with a low relapse rate, with only a few dogs in the NRE group. Reduction of BCS, albumin and lacteal dilatation at diagnosis may be considered negative prognostic factors for response, mortality and long-term disease remission
Usefulness of squash preparation cytology in the diagnosis of canine urinary bladder carcinomas
No full textBackground Epithelial cells show varying degrees of cytologic atypia in dogs with nonmalignant lesions (NML) and carcinomas (ubC) of the bladder, making histopathologic examination necessary for a definitive diagnosis. Objectives This study aimed to investigate the diagnostic performance of squash preparation cytology and identify several cytomorphologic features of ubC to assist in diagnoses. Methods Squash preparations were made and reviewed in dogs that underwent transurethral cystoscopy. The results were compared with histopathologic diagnoses. Two cytopathologists performed blinded assessments using a scoring system established for 11 cytologic features, including the presence of macronuclei, abnormal nucleoli, atypical mitoses, signet ring cells, multinucleated cells, nuclear molding, anisokaryosis, cytoplasmatic microvacuolization, cell arrangements, and neutrophil and lymphocyte infiltrations. Based on cytologic and histopathologic diagnoses, dogs were divided into ubC and NML groups. Associations between cytologic and histopathologic diagnoses were investigated, and agreement between the cytopathologists was calculated. Cytologic features were analyzed with multivariate logistic regression models. The performance of predictors in the final model was evaluated in terms of Sensitivity (Se), Specificity (Sp), accuracy, positive predictive value (PPV), negative predictive value (NPV), likelihood ratio positive (LR+), and negative (LR-) values, and the diagnostic odds ratio (DOR). Results Forty-four dogs diagnosed with ubC, and 17 with NML were included in the study. Cytologic and histopathologic diagnoses were significantly associated with each cytopathologist. There was an almost perfect agreement between cytopathologists (kappa = 0.88). The absence of neutrophilic infiltration, the presence of multinucleated cells, and nuclear molding were associated with ubC; using a combination of these features in parallel testing resulted in Se = 0.98, Sp = 0.65, accuracy = 0.89, PPV = 0.88, NPV = 0.92, LR + =2.77, LR- = 0.04, and DOR = 7.7. Conclusions Squash preparation cytology could be a reliable technique to diagnose ubC in dogs. The best diagnostic combination was the absence of neutrophilic infiltration, multinucleated cells, and nuclear molding
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