121 research outputs found
Pesquisa de Triatomíneos no município de São João do Sul, Estado de Santa Catarina
Pesquisa de Triatomíneos no município de São João do Sul, Estado de Santa Catarin
Triatomínios e seus índices de infecção no Rio Grande do Sul
Triatomínios e seus índices de infecção no Rio Grande do Su
Plano piloto para a profilaxia eclética da doença de Chagas
Plano piloto para a profilaxia eclética dadoença de Chaga
Erros e deficiências no diagnóstico da doença de Chagas no Rio Grande do Sul. O problema da provável contaminação por via oral do Trypanosoma cruzi
Erros e deficiências no diagnóstico da doença de Chagas no Rio Grande do Sul. O problema da provável contaminação por via oral do Trypanosoma cruz
Triatomíneos e respectivos índices de infecção pelo Tripanosoma Cruzi no município de Santana da Boa Vista, Rio Grande do Sul
Triatomíneos e respectivos índices de infecção pelo Tripanosoma Cruzi no município de Santana da Boa Vista, Rio Grande do Su
Distribution and origin of natural gas leakage in the Colorado Basin, offshore Argentina Margin, South America : seismic interpretation and 3D basin modelling
The detailed analysis of a dense 2D seismic reflection dataset and data from 8 exploration wells, allowed us to identify, map out and characterize possible indications of past and present-day hydrocarbon leakage (i.e. gas chimneys, gas pockets, and seafloor mounds and pockmarks) on the continental shelf and slope of the Colorado Basin, offshore Argentina, where Permian, Jurassic and Early Cretaceous source rocks are potentially present and may be currently mature. Identified gas leakage features, developed both in the syn-rift and post-rift successions, were also analysed in relation to the structural the stratigraphic elements of the basin. A family of seabed pockmarks, located close to an array of submarine channels, was identified on the distal slope of the basin. These pockmarks are overlying a series of sub-vertical to vertical seismic chimneys in the subsurface. A calibrated basin-wide 3D petroleum system model comprising generation and migration of hydrocarbons was carried out and compared with the observations from the seismic analysis. Preliminary results from this model indicate that although synrift and early Cretaceous source rock (SR) intervals may be depleted in the central areas of the basin, an active kitchen from the Aptian SR may be present below the slope areas. Hydrocarbon migration pathways predicted by the 3D model (Hybrid method) coincide with the interpreted seismic chimneys underlying the observed seabed slope pockmarks. Hence, our results indicate that thermogenic gas may be currently generated in the distal slope of the basin from mature early post-rift source rocks within the Early Cretaceous (Aptian) sequences and migrates vertically, due to seal failure, through the stratigraphic column. This migrating thermogenic gas is feeding the seafloor pockmarks identified in the distal slope of the basin, although up-dip lateral migration along stratigraphic layers to the more proximal slope areas cannot be ruled out. The present work represents the first published study integrating detailed seismic analysis and 3D basin modelling linking observed gas-leakage indicators and associated seepage pathways, to their relative abundance, distribution and feeding systems offshore Argentina's continental margin
Cytotoxicity induced by exposure t o natural and synthetic tremolite asbestos: An in vitro pilot study.
Tectonic evolution of the Colorado Basin, offshore Argentina, inferred from seismo-stratigraphy and depositional rates analysis
International audienceBased on a dense 2D seismic reflection dataset and information from 8 exploration wells, we reinterpreted the stratigraphic evolution of the Colorado Basin. The basin is located on the continental shelf and slope within 50 to 2250 m of bathymetry. The total sediment fill can be up to 16,000 m. Seismic-to-well log correlations provide a chrono-stratigraphic framework for the interpreted seismic sequences. We show that the Colorado Basin records the development of a Permian pre-rift period, a Triassic/Jurassic to Early Cretaceous rift phase and a Lower Cretaceous to Tertiary drift phase. This passive margin represents the evolution of lithospheric extension from active rifting to the thermal subsidence/drift stage. Several Cretaceous to Cenozoic slumping episodes were identified and related to progradation of the sequences and sediment build-up in the slope, as well as to the development of seaward dipping extensional faults
Carotid artery stenting: a single-centre experience with up to 8 years' follow-up
Carotid artery stenting (CAS) may be an alternative to surgical endoarterectomy not only in high-risk patients. We report results in the endovascular treatment of carotid artery disease with up to 8 years' follow-up. In this retrospective study, we analysed data from 853 consecutive patients (946 arteries) treated for carotid artery stenosis between April 1999 and March 2007; 491 (52%) arteries were symptomatic and 455(48%) were asymptomatic. Preprocedural evaluation of the patients was performed with echo Doppler, magnetic resonance angiography (MRA) or computed tomographic angiography (CTA) and a neurological examination. A cerebral protection device was used in 879 (92.9%) procedures. Anti-platelet therapy was administered before and after the procedure. All patients were included in a follow-up of up to 8 years. Technical success was achieved in 943 (99.6%) lesions. At 30 days, there was a 0.21% (n = 2) death rate, a 0.42% major stroke rate, a 1.69% minor stroke/transient ischaemic attack (TIA) rate and a combined 2.32% TIA/stroke and death rate. During follow-up, echo Doppler evidenced restenosis in 39 (4.85%) cases; of these, only five, presenting restenosis > 80%, were treated with an endovascular reintervention. At the long-term follow-up, two strokes (0.23%) were reported, which both occurred within the first 2 years. In our experience, carotid artery stenting seems to be a safe and effective treatment, providing satisfactory long-term clinical results
Hospital Organization and Importance of an Interventional Radiology Inpatient Admitting Service:Italian Single-Center 3-year Experience
In June 2005 a Complex Operating Unit of
Interventional Radiology (COUIR), consisting of an outpatient
visit service, an inpatient admitting service with
four beds, and a day-hospital service with four beds was
installed at our department. Between June 2005 and May
2008, 1772 and 861 well-screened elective patients were
admitted to the inpatient ward of the COUIR and to the
Internal Medicine Unit (IMU) or Surgery Unit (SU) of our
hospital, respectively, and treated with IR procedures. For
elective patients admitted to the COUIR’s inpatient ward,
hospital stays were significantly shorter and differences
between reimbursements and costs were significantly
higher for almost all IR procedures compared to those for
patients admitted to the IMU and SU (Student’s t-test for
unpaired data, p\0.05). The results of the 3-year activity
show that the activation of a COUIR with an inpatient
admitting service, and the better organization of the patient
pathway that came with it, evidenced more efficient use of
resources, with the possibility for the hospital to save
money and obtain positive margins (differences between
reimbursements and costs). During 3 years of activity, the
inpatient admitting service of our COUIR yielded a positive
difference between reimbursements and effective costs
of €1,009,095.35. The creation of an inpatient IR service
and the admission of well-screened elective patients
allowed short hospitalization times, reduction of waiting
lists, and a positive economic outcome.
Keywords Inpatients Hospitalization Costs
Reimbursement
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