1,124 research outputs found
Microvolumi appesi. Ristrutturazione ed ampliamento di una casa di riposo a Seregno, Milano Brianza
No full textProgetto di ricerca architettonica redatto in occasione di concorso internazionale di cui è risultato vincitore del primo premio. Pubblicazione inserita all'interno del libro: G. Troccoli, HOUSING. Il progetto contemporaneo della residenza, Edizioni Kappa, Roma 201
Residenze speciali ecosostenibili in un parco urbano a Seregno, Milano
No full textProgetto pubblicato all'interno dell'articolo di G. Troccoli "L'abitazione sociale. Nuovi spazi architettonici e urbani", In: ARCHITETTURA & AMBIENTE N° 15/2008. Rivista quadrimestrale Dip. CAVEA, Università La Sapienza, Rom
Progetto per dieci alloggi di edilizia residenziale pubblica a Seregno, Milano Brianza
No full textProgetto di ricerca architettonica redatto in occasione di concorso internazionale "Europan VI" di cui è risultato vincitore del primo premio. Pubblicazione inserita all'interno del libro: G. Troccoli, HOUSING. Il progetto contemporaneo della residenza, Edizioni Kappa, Roma 201
Progetto per una stazione fluviale sul Tevere a S. Michele a Ripa
No full textprogetto di una stazione fluviale nell'area del San Michele a Ripa. Progetto menzionato al concorso per student
Long-term wheat response to nitrogen in a rainfed Mediterranean environment: Field data and simulation analysis
No full textAppropriate nitrogen management is one of the main challenges of agricultural production and for the environment. The objectives of this study were to evaluate the efficiency of crop N uptake in a longterm wheat crop in a Mediterranean environment of Southern Italy, and to identify optimal N rate for reasonable economic returns and minimum nitrate leaching using SAWS crop simulation model. The study was part of a long-term monoculture wheat system that started in 1991/1992 season, with two levels of nitrogen (0 and 90 kg N ha(-1)). Simulations of the treatment with no nitrogen (0N) and 90 kg N ha(-1) (90 N) were performed using the SALUS crop model for wheat. The model was tested against measurements of harvested grain yield, final N uptake, soil water content and total soil N. Long-term simulation over 56 years showed that grain yield median value was 3435 kg ha(-1) for 0N and 3876 kg ha(-1) for 90 N. Simulation scenarios with different N rates (0, 30, 60, 90, 120, 180 kg N ha(-1)) showed that yield response was higher for 120 N (3528 kg ha(-1)), with the 60 and 90 N yields giving the same response, 3010 and 3054 kg ha(-1), respectively. The most profitable treatments were 120 N (302 Euro ha(-1)), followed by the 60 N (220 Euro ha(-1)). The simulation results showed that nitrate leaching was higher for the N rate of 120 and 180 with a mean annual value of 49 and 81 kg ha(-1), respectively. Results suggest that in such environment 60 kg N ha(-1) can be the most appropriate as an N fertilization management due to the best trade-off between leaching and economic. Since N fertilization rates are linked to nitrous oxide (N(2)O) emissions and N leaching, a trade-off between N fertilization rates profit and grain yield should be thought as way to reduce environmental pollution while keeping productivity and profit. The adoption of simulation models to approximate the best N rate for durum wheat in rainfed Mediterranean environment proved to be a useful tool for supporting management decisions through quantifying the temporal variability related to weather uncertainty as it influences on the yield and nutrient dynamics. (C) 2010 Elsevier B.V. All rights reserved
The ambivalence of autonomy: skills, trust, tactics, and status on a construction site in Belize
No full textThis article focuses on the autonomy of construction workers informally employed in Belize City, Belize, as emerging from the labor processes and material conditions that characterize construction work in this ethnographic setting. I argue that the notion of ambivalence can be fruitfully applied in order to understand how autonomy acts in contradictory ways in reproducing the relationships amongst workers, and between them and their contractors. In a context characterized by personal relationships, minimized managerial control, and flexible employment, the article employs an ethnography of the workplace which focuses on the role of trust, status and tactics used by builders to their own advantage, in order to show the relevance of their autonomy for how they meaningfully engage with their work, with each other and their employers. The article asks how workers differentially positioned within the skills-based hierarchy of the workplace act ambivalently, simultaneously reinforcing and negating their unequal place within it while striving to make their conditions less precarious
Detecting fingerprints of landslide drivers: A MaxEnt model
No full textLandslides are important geomorphic events that sculpt river basins by eroding hillslopes and providing sediments to coastal areas. However, landslides are also hazardous events for socio-ecological systems in river basins causing enormous biodiversity, economic, and social impacts. We propose a probabilistic spatially explicit model for the prediction of landslide patterns based on a maximum entropy principle model (MAXENT). The model inputs are the centers of mass of historical landslides and environmental variables at the basin scale. The model has only three parameters requiring calibration: the threshold for the network extraction, the trade-off factor between model complexity and accuracy, and the threshold of landslide susceptibility. The calibration on a subset of observations detects the environmental drivers and their relative importance for landslides. We employ the model in the Arno basin, Italy, selected because of its widespread landslide dynamics and the large availability of landslide observations. The model reproduces the size distribution and location of over 27,500 historical landslides for the Arno basin with an accuracy of 86% obtained from the variable-landslide inference on about 37% of observed landslides. Future landslide patterns are predicted for 17 A1B and A2 rainfall scenarios and for a multimodel ensemble from 2000 to 2100. We show that potential landslide hazard is strongly correlated with variation in the 12 and 48 h rainfall with a return time of 10 years. As the climate gets wetter, the average probability of landslides gets higher which is shown by the landslide size distribution. Hence, the landslide size distribution is a fingerprint of the geomorphic effectiveness of rainfall as a function of climate change. MAXENT is proposed as a parsimonious model for the prediction of landslide patterns with respect to more complex models. The need for very accurately sampled and delineated landslides is lower than for other prediction models. Moreover, the model informs about the drivers of landslides and their relative importance without assumptions on the main triggering factors. This is important to inform monitoring of environmental variables. Our modeling approach can enhance the planning of socio-ecological systems in river basins by improving the accuracy of landslide prediction in space and time. ©2013. American Geophysical Union. All Rights Reserved
Prognostic role of chromogranin A expression for docetaxel response in hormone-refractory metastatic prostate cancer
No full textBackground: The neuroendocrine (NE) cells in prostate cancer are indistinguishable from non-NE cancer cells morphologically and are usually detected by immunohistochemical study for NE markers. We analyzed the expression of Chromogranin A (Chr A) in malignant prostate tissue as prognostic factor for docetaxel response in metastatic HRPC. Methods: From January 2003 to December 2006, 40 patients with metastatic HRPC received a median of 12 cycles (range 2–18) of Docetaxel 75 mg/mq every 21 days and 5 mg of prednisone twice daily as initial therapy. Tissue blocks from primary prostate cancer tissues were obtained and immunostaining for Chr A was performed. The median age was 70 years (range 46–82); median baseline PSA: 310 ng/ml (range 0.15–700); median ECOG Performance Status: 1 (range 0- 2). PSA level was measured every 4 weeks and the treatment was considered effective if a rate of PSA-decline > 50% from baseline was found. TTP was the preliminary end point. Results: Response to Docetaxel was assessed at every 3 cycles of treatment. The Chr A expression was found in 19/40 patients with Gleason = 7, PSA < 20, bone and soft tissue metastasis; 10 of them showed PR (decrease in PSA < 50%), 4 SD and TTP was 9.2 months. Moreover they received second line chemotherapy without significant efficacy. 5/19 patients with Chr A expression showed PD, the PSA level was not correlated with clinical outcome, TTP was 5 months and were chemoresistant to different line treatment. Besides, Chr A was not detected in 21/40 patients with Gleason = 7, PSA > 20 and bone metastasis; 10 of them showed CR (PSA normalized) and 11 PR, TTP was 20 months. Conclusions: NE differentiation do not constituite a different histopathological category of prostate cancer but the NE phenotype can be correlated with poorly differentiated adenocarcinoma. NE differentiation can be considered a factor that influences prognosis and treatment in advanced prostate cancer; cases with Chr A expression did not benefit from Docetaxel and had poor prognosis. These preliminary data indicate that initial therapeutic approach should be different according to Chr A expression
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