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Institution

Sao Paulo State University

EducationSão Paulo, Brazil
About: Sao Paulo State University is a education organization based out in São Paulo, Brazil. It is known for research contribution in the topics: Population & Large Hadron Collider. The organization has 55715 authors who have published 100436 publications receiving 1375332 citations.


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Journal ArticleDOI
01 Aug 2012-BJUI
TL;DR: study type – therapy (systematic review) and study Type – Therapy (systemic review)
Abstract: Study Type – Therapy (systematic review) Level of Evidence 2b What's known on the subject? and What does the study add? The oncological success of partial nephrectomy in the treatment of small renal masses is well established. However, partial nephrectomy has largely supplanted the radical approach. In the last decade, laparoscopy has been adopted as the new surgical approach for the treatment of renal cell carcinoma. Laparoscopy offers the advantage of lower analgesic use, shorter hospital stay, and quicker recovery time. More recently, ablative technologies have been investigated as an alternative to laparoscopic partial nephrectomy. These techniques can often be performed percutaneously in the radiology suite, or laparoscopically without the need for hilar clamping. However, only the cryoablation and radiofrequency ablation modalities have had widespread use with several series reporting short to intermediate results. This review shows that both cryoablation and radiofrequency ablation are promising therapies in patients with small renal tumours (<4 cm), who are considered poor candidates for more involved surgery. OBJECTIVE • To determine the current status of the literature regarding the clinical efficacy and complication rates of cryoablation vs radiofrequency ablation in the treatment of small renal tumours. METHODS • A review of the literature was conducted. There was no language restriction. Studies were obtained from the following sources: MEDLINE, EMBASE and LILACS. • Inclusion criteria were (i) case series design with more than one case reported, (ii) use of cryoablation or radiofrequency ablation, (iii) patients with renal cell carcinoma and, (iv) outcome reported as clinical efficacy. • When available, we also quantified the complication rates from each included study. • Proportional meta-analysis was performed on both outcomes with a random-effects model. The 95% confidential intervals were also calculated. RESULTS • Thirty-one case series (20 cryoablation, 11 radiofrequency ablation) met all inclusion criteria. • The pooled proportion of clinical efficacy was 89% in cryoablation therapy from a total of 457 cases. There was a statistically significant heterogeneity between these studies showing the inconsistency of clinical and methodological aspects. • The pooled proportion of clinical efficacy was 90% in radiofrequency ablation therapy from a total of 426 cases. There was no statistically significant heterogeneity between these studies. • There was no statistically significant difference regarding complications rate between cryoablation and radiofrequency ablation. CONCLUSIONS • This review shows that both ablation therapies have similar efficacy and complication rates. • There is urgency for performing clinical trials with long-term data to establish which intervention is most suitable for the treatment of small renal masses.

163 citations

Journal ArticleDOI
TL;DR: Basic aspects used to control the architecture and functional properties of smart hydrogels are discussed, and analysis provides the basis for optimizing biological responses through system modulation.

163 citations

Journal ArticleDOI
TL;DR: A survey of the fish species in the streams of the Morro do Diabo State Park was performed as mentioned in this paper, where a predominance of Order Siluriformes, followed by Characiformes was registered.
Abstract: Resumo Stream fishes of the Morro do Diabo State Park, Upper Parana River basin, SP.A survey of the fish species in the streams of the Morro do Diabo State Park was performed. Four first and second order streams were sampled and 22 fish species and 1,573 individuals were collected, belonging to five orders and 11 families. A predominance of Order Siluriformes, followed by Characiformes was registered. Based on general aspects of their biology, the fish species were classified in eight guilds. The studied species are able to use several food sources and microhabitats available in these environments, being particularly favored by their small size. An identification key for the species, together with illustrations of their live coloration is provided.Peixes de riacho do Parque Estadual Morro do Diabo, bacia do Alto rio Parana, SPNeste trabalho foi realizado um levantamento das especies de peixes de riacho que ocorrem no Parque Estadual Morro do Diabo. Quatro riachos foram amostrados, de primeira a segunda ordem, onde foram coletadas 22 especies, pertencentes a cinco ordens e 1 1 familias, num total de 1.573 individuos. Foi registrado o predominio da Ordem Siluriformes, seguida por Characiformes. Com base em aspectos gerais da biologia das especies de peixes, as mesmas foram classificadas em oito guildas. De modo geral, as especies estudadas sao capazes de utilizar diversos recursos alimentares e micro-habitats disponiveis nesses ambientes, sendo particularmente favorecidas pelo pequeno porte apresentado. Chave de identificacao e fotos de exemplares recem-coletados de toda s as especies de peixes sao fornecidas.

163 citations

Journal ArticleDOI
TL;DR: Saba et al. as mentioned in this paper showed that downward +CG leader speeds are similar to downward CG leader speeds and that the speeds tend to increase by a factor of 1.1 to 6.5 as they approach the ground.
Abstract: values range from 0.3 to 6.0 10 5 ms 1 with a mean of 2.7 10 5 ms 1 . Contrary to what is usually assumed, downward +CG leader speeds are similar to downward CG leader speeds. Our observations also show that the speeds tend to increase by a factor of 1.1 to 6.5 as they approach the ground. The presence of short duration, recoil leaders (RLs) during the development of positive leaders reveal a highly branched structure that is not usually recorded when using conventional photographic and video cameras. The existence of the RLs may help to explain observations of UHF-VHF radiation during the development of +CG flashes. Citation: Saba, M. M. F., K. L. Cummins, T. A. Warner, E. P. Krider, L. Z. S. Campos, M. G. Ballarotti, O. Pinto Jr., and S. A. Fleenor (2008), Positive leader characteristics from high-speed video observations, Geophys. Res. Lett., 35, L07802, doi:10.1029/2007GL033000.

163 citations

Journal ArticleDOI
TL;DR: In this paper, a quantitative, exploratory, survey-based study, in which the collected data were subsequently processed using structural equation modelling, was performed using data from 95 companies with ISO14001 located in Brazil.

163 citations


Authors

Showing all 56201 results

NameH-indexPapersCitations
Russel J. Reiter1691646121010
Tobin J. Marks1591621111604
Joseph T. Hupp14173182647
Luca Lista1402044110645
Sergio F Novaes1381559101941
Wagner Carvalho135139594184
Alberto Santoro1351576100629
Andre Sznajder134146498242
Luiz Mundim133141389792
Eduardo De Moraes Gregores133145492464
Helio Nogima132127484368
Pedro G Mercadante129133186378
D. De Jesus Damiao128116282707
Sandra S. Padula128113177174
Sudha Ahuja127101675739
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023127
2022765
20216,826
20206,949
20196,316
20186,314