New early Triassic Lingulidae (Brachiopoda) genera and species from South China

Two new genera, Sinolingularia gen. nov. and Sinoglottidia gen. nov., together with three new species, Sinolingularia huananensis gen. et sp. nov., Sinolingularia yini gen. et sp. nov. and Sinoglottidia archboldi gen. et sp. nov., are described on the basis of a large collection of well-preserved specimens from several sections straddling the Permian - Triassic boundary in South China. <br /

Memorial acadêmico para Professor Titular

Os memoriais têm longa tradição acadêmica no Brasil, constituem-se em documentos que expõem trajetórias de professores universitários para fins de concursos ou de progressões ao longo das suas carreiras. No caso específico das universidades federais e da progressão para a classe de Professor Titular a ampliação do acesso a esse nível da carreira é a resultante de uma greve do movimento docente. Entre as concessões ao Estado e as conquistas da categoria, essa greve garantiu que todos os professores que alcançarem o nível de Professor Associado 4 possam pleitear essa ascensão. Nas regras anteriores de distribuição de vagas para Professor Titular, a possibilidade dessa promoção era muito reduzida, envolvia a perda de direitos trabalhistas, além de produzir uma competição intensa entre pares do mesmo departamento

High CMRR GaAs single-input to differential convertor

In this paper a new topology for Single Input to Differential convertors is presented. Among the capabilities of convertors realised with this topology, 6 dB of extra conversion gain respect to a single differential cell and suppression of the common mode can be mentioned. An exact model of the circuit and considerations about design optimisation are also presented

Synthesis and evaluation for biological activity of 3-alkyl and 3-halogenoalkyl-quinoxalin-2-ones variously substituted. Part 4

A new series of 3-isopropyl-, 3-trifluoromethyl- and 3-bromomethylquinoxaline-2-ones variously substituted on the benzo-moiety were synthesized and submitted to a preliminary in vitro evaluation for antibacterial, antifungal and anti-HIV activities. Furthermore, all compounds were also tested for cytotoxicity. Results of the screening showed that compound 10 exhibits moderate antimicrobial activity against Staphylococcus aureus (MIC = 33 microM), and that 25 and 26 showed interesting cytotoxicity versus mock-infected MT-4 cells. All the other compounds were inactive

Factors influencing the long term results of cholecystectomy

800 patients who underwent cholecystectomy have been reviewed and evaluated in an attempt to establish the frequency and severity of postcholecystectomy symptoms and to analyze the possible factors influencing these distresses. There were 551 patients who had symptomatic cure; 217, mild symptoms; and 32, severe symptoms. Residual stones in the common bile duct and stenosis at the sphincter of Oddi were found to be the underlying causes of severe postcholecystectomy distress. Helpful in detecting common bile duct diseases was telecholangioscopy associated with cholangiography, the routine use of which decreased from 8 to 2% the percentage of overlooked biliary disorders. The procedure of choice in the treatment of residual stones in the common bile duct and stenosis at the sphincter of Oddi was sphincteroplasty, which provided excellent long term results with a low operative mortality rate. Mild postcholecystectomy symptoms were found to be related to hepatic damage which usually is present in patients with gallbladder diseases. Accordingly, the frequency of these distresses was significantly influenced by the degree of hepatic damage present before operation. Patients with a long interval between onset of symptoms and cholecystectomy and with severe inflammation of the gallbladder had a higher incidence of mild distress. These findings are a strong argument for early cholecystectomy