Guida alle macrofite acquatiche del Friuli Venezia Giulia I - Piante vascolari

La Direttiva Quadro sulle Acque (2000/60/CE), recepita in Italia dal DL. 152/2006, ha introdotto lo studio delle macrofite acquatiche nella valutazione dello stato ecologico delle acque interne, basato sui criteri tecnici del DM 260/2011. Per i corsi d'acqua è previsto l'uso dell'Indice Biologique Macrophytique en Rivière IBMR (AFNOR, 2003), per i laghi degli indici MTIspecies e MacroIMMI (CNR-ISE, 2009). La certificazione di qualità delle analisi biologiche richiede strumenti conoscitivi adeguati: la creazione di chiavi informatizzate è una tappa fondamentale. Questa guida è stata sviluppata dal Dipartimento di Scienze della Vita dell'Università di Trieste e da ARPA Friuli Venezia Giulia come supporto all'identificazione della flora acquatica regionale. Risulta dalla condivisione delle conoscenze dell'ateneo giuliano con l'esperienza dei tecnici ARPA FVG nell'ambito delle attività di biomonitoraggio per il Piano Regionale di Tutela delle Acque. Le macrofite acquatiche comprendono vegetali molto diversi: alghe macroscopicamente visibili, muschi, epatiche e piante vascolari, a cui è dedicata questa guida. L'elenco floristico comprende taxa tipici di ambienti lotici e lentici, creato in fasi successive. Una prima lista deriva dal confronto tra la quella utilizzata per il calcolo dell'IBMR e la lista delle macrofite acquatiche dei corsi d'acqua italiani pubblicata da ENEA (RT/2009/23/ENEA). La successiva comparazione tra i dati dell'Atlante Corologico del Friuli Venezia Giulia (Poldini 2002) ed una lista risultante da rilievi condotti nel 2009-2010 da ARPA FVG, hanno portato all'elenco di 244 taxa inclusi in questa guida. La suddivisione in Famiglie segue Angiosperm Phylogeny Group III (2009)

Clinical features and outcomes of elderly hospitalised patients with chronic obstructive pulmonary disease, heart failure or both

Background and objective: Chronic obstructive pulmonary disease (COPD) and heart failure (HF) mutually increase the risk of being present in the same patient, especially if older. Whether or not this coexistence may be associated with a worse prognosis is debated. Therefore, employing data derived from the REPOSI register, we evaluated the clinical features and outcomes in a population of elderly patients admitted to internal medicine wards and having COPD, HF or COPD + HF. Methods: We measured socio-demographic and anthropometric characteristics, severity and prevalence of comorbidities, clinical and laboratory features during hospitalization, mood disorders, functional independence, drug prescriptions and discharge destination. The primary study outcome was the risk of death. Results: We considered 2,343 elderly hospitalized patients (median age 81 years), of whom 1,154 (49%) had COPD, 813 (35%) HF, and 376 (16%) COPD + HF. Patients with COPD + HF had different characteristics than those with COPD or HF, such as a higher prevalence of previous hospitalizations, comorbidities (especially chronic kidney disease), higher respiratory rate at admission and number of prescribed drugs. Patients with COPD + HF (hazard ratio HR 1.74, 95% confidence intervals CI 1.16-2.61) and patients with dementia (HR 1.75, 95% CI 1.06-2.90) had a higher risk of death at one year. The Kaplan-Meier curves showed a higher mortality risk in the group of patients with COPD + HF for all causes (p = 0.010), respiratory causes (p = 0.006), cardiovascular causes (p = 0.046) and respiratory plus cardiovascular causes (p = 0.009). Conclusion: In this real-life cohort of hospitalized elderly patients, the coexistence of COPD and HF significantly worsened prognosis at one year. This finding may help to better define the care needs of this population

IL Veneto

La cucina contadina è nata povera, ma piena di inventiva. Lo dimostrano le numerose ricette, ma soprattutto la società rurale di un tempo, un insieme di culture, tradizioni e saperi. Un mondo odoroso di erbe spontanee, di minestre e zuppe, di verdure e legumi coltivati nel campo e nell'orto

Drought-induced dieback of Pinus nigra: a tale of hydraulic failure and carbon starvation

10siOngoing climate change is apparently increasing tree mortality rates, and understanding mechanisms of drought-induced tree decline can improve mortality projections. Differential drought impact on conspecific individuals within a population has been reported, but no clear mechanistic explanation for this pattern has emerged. Following a severe drought (summer 2012), we monitored over a 3-year period healthy (H) and declining (D) Pinus nigra trees co-occurring in a karstic woodland to highlight eventual individual-specific physiological differences underlying differential canopy dieback. We investigated differences in water and carbon metabolism, and xylem anatomy as a function of crown health status, as well as eventual genotypic basis of contrasting drought responses. H and D trees exploited the same water pools and relied on similar hydraulic strategies to cope with drought stress. Genetic analyses did not highlight differences between groups in terms of geographical provenance. Hydraulic and anatomical analyses showed conflicting results. The hydraulic tracheid diameter and theoretical hydraulic conductivity were similar, but D trees were characterized by lower water transport efficiency, greater vulnerability to xylem conduit implosion and reduced carbohydrate stores. Our results suggest that extreme drought events can have different impacts on conspecific individuals, with differential vulnerability to xylem embolism likely playing a major role in setting the fate of trees under climate change.openopenSavi, Tadeja; Casolo, Valentino; Dal Borgo, Anna; Rosner, Sabine; Torboli, Valentina; Stenni, Barbara; Bertoncin, Paolo; Martellos, Stefano; Pallavicini, Alberto; Nardini, AndreaSavi, Tadeja; Casolo, Valentino; Dal Borgo, Anna; Rosner, Sabine; Torboli, Valentina; Stenni, Barbara; Bertoncin, Paolo; Martellos, Stefano; Pallavicini, Alberto; Nardini, Andre

Follow up dell'asma professionale da latice.

Abstract We studied 29 subjects with latex-induced occupational asthma in a follow-up of 5 +/- 3 years. Initial and follow-up visits included a questionnaire and measurement of lung volumes, bronchial responsiveness to methacholine (PD20FEV1), and latex-specific serum IgE levels. At follow-up, 17 subjects were no longer exposed to latex, whereas 12 subjects had reduced exposure. Asthma and rhinitis symptoms, use of steroids and bronchial hyperresponsiveness improved significantly at follow-up, whereas mean FEV1% and FVC% decreased (p < 0.05). Multiple regression analysis showed that the main determinant of FEV1 and PD20FEV1 at follow up were the values of these variables at diagnosis. Complete recovery of occupational asthma was observed in 7 subjects (24%), all in the non-exposed group. Latex-specific IgE did not exhibit significant changes. In conclusion latex-induced occupational asthma improves after a follow-up of 5 +/- 3 years, but a complete recovery occurs in a minority of subjects and is associated with cessation of exposure. Lung function measurements at follow up depend from their impairment at the time of diagnosis

MRI in the assessment of muscular pathology: a comparison between limb-girdle muscular dystrophies, hyaline body myopathies and myotonic dystrophies.

PURPOSE: The continuous discovery of new subtypes of neuromuscular disorders demands more accurate imaging analyses. We set out to establish the specific patterns of muscular involution using magnetic resonance imaging (MRI). MATERIALS AND METHODS: A systematic clinical evaluation based on the Medical Research Council scale and MRI was completed in ten patients with calpainopathy [limb-girdle muscular dystrophy (LGMD)-2A], 16 with dysferlinopathy (LGMD-2B), ten with hyaline body myopathy (HBM), six with myotonic dystrophy (MD) types 1 and 5 with MD type 2. Severity of fibroadipose degeneration was specifically staged using T1-weighted sequences. Turbo inversion recovery magnitude (TIRM) sequences were used to assess oedema-like changes. RESULTS: T1 scans showed recurrent patterns of fibroadipose replacement, whereas TIRM images revealed differences in oedema-like changes between the various diseases. In LGMD, the posterior compartments are more vulnerable to degeneration. In HBM, fatty muscle degeneration and oedema are allocated to muscles of the posterior compartments of the leg. In MD, fatty muscle degeneration and oedematous changes are allocated to muscles of the anterior thigh and posterior lower leg. CONCLUSIONS: Imaging examination suggests a characteristic pattern of muscle involvement. MRI represents an important diagnostic technique useful in differential diagnosis, thanks to the distinctive patterns observed in the distribution of muscular changes between the different muscular diseases

Sulla Tavola del Doge

Molte preparazioni alimentari che hanno come componente principale il riso sono importanti miti identitari italiani e soprattutto delle singole, diverse e variegate cucine regionali. Allo stesso modo il riso \ue8 uno dei pi\uf9 importanti alimenti che assieme alla pasta ha accompagnato lo sviluppo della cucina in Italia, soprattutto negli ultimi centocinquantanni