Frise à Pétrograd pour le 2e anniversaire de la Révolution : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 60442

Cavaliers bolchéviks dans les rues de Pétrograd : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 60445

Troupes de l'Armée Rouge quittant Pétrograd pour le front polonais : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 60449

Zinoviev, dernier dictateur de Pétrograd : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 60443

Monument à la mémoire des bolchéviks de Pétrograd [illisible] vivant toujours dans la mémoire du peuple, celui là qui est immortel, qui donne à la cause du peuple : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 60444

Monument bolchévik représentant le prolétariat écrasant l'ancien régime : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 60447

Troupes de l'Armée Rouge quittant Pétrograd pour le front polonais : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 60448

Pétrograd, dans les rues, bannière portant cette inscription : [illisible] règne des travailleurs et des [illisible] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 60446

The Geography of Revolution: The case of Longford, 1917-1921

Why were some areas of the Ireland more active than others during the War of Independence, and why did the areas of most activity change over the course of the war between 1919 and 1921? In the context of the Irish midlands, County Longford stands out as one of the most violent counties surrounded by areas where there was much less activity by the IRA. Even within the county there was a significant difference in the strength of republican activity between north and south Longford. This article will examine the factors that were responsible for the strength of the IRA campaign in this midland enclave, including socio-economic conditions, administrative decisions and failures, and the contemporary political context.
Much of the evidence upon which the paper is based comes from applications made by Longford Volunteers for military service pensions, granted to veterans of the campaign by the Irish government after 1924. Many of these documents are soon to be released by the Irish government. The paper will also include a discussion of these sources and the way in which they can be used by historians to advance our understanding of Ireland’s revolutionary decade.

A formação teórica de Bukhárin e a transição na URSS: 1906-1921

Pós-graduação em Ciências Sociais - FFC

A Novel 4T nMOS-Only SRAM Cell in 32nm Technology Node

This paper proposes a novel loadless 4T SRAM cell composed of nMOS transistors. The SRAM cell is based on 32nm silicon-on-insulator （SO1） technology node. It consists of two access transistors and two pull-down transistors. The pull-down transistors have larger channel length than the access transistors. Due to the significant short channel effect of small-size MOS transistors, the access transistors have much larger leakage current than the pull-down transistors,enabling the SRAM cell to maintain logic ＂1＂ while in standby. The storage node voltages of the cell are fed back to the back-gates of the access transistors,enabling the stable ＂read＂ operation of the cell. The use of back-gate feedback also helps to im- prove the static noise margin （SNM） of the cell. The proposed SRAM cell has smaller area than conventional bulk 6T SRAM cells and 4T SRAM cells. The speed and power dissipation of the SRAM cell are simulated and discussed. The SRAM cell can operate with a 0. 5V supply voltage.

Formation of Two Kinds of Hexagonally Arranged Structures in ABC Triblock Copolymer Thin Films Induced by a Strongly Selective Solvent Vapor

An order-order transition (OOT) in the sequence of a hexagonally arranged core-shell cylinder to a double-hexagonally arranged dot in polystyrene-block-poly(butadiene)-block-poly(2-vinylpyridine) (SBV) triblock copolymer thin films is reported to be induced upon exposure to a solvent vapor that: is strongly selective for the two end blocks. These two kinds of hexagonally arranged structures could form when the film thickness is 44, 3.23, and 223 nm. When the film thickness is decreased to 13 nm, the ordered structure is absent. The sizes of the cylinder structures formed with the same annealing time in films of different thickness are compared to address the effects of film thickness on the phase structure. The mechanism is analyzed from the total surface area of the blocks and the effective interaction parameter in the solvent vapor.

Computer-Guided Surgery in Implantology: Review of Basic Concepts

The aim of the present study was to conduct a critical literature review about the technique of computer-guided surgery in implantology to highlight the indications, purposes, immediate loading of implants and complications, protocol of fabrication, and functioning of virtual planning software. This literature review was based on OLDMEDLINE and MEDLINE databases from 2002 to 2010 using the key words "computer-guided surgery" and "implant-supported prosthesis." Thirty-four studies regarding this topic were found. According to the literature review, it was concluded that the computer-assisted surgery is an excellent treatment alternative for patients with appropriate bone quantity for implant insertion in complete and partially edentulous arches. The Procera Nobel Guide software (Nobel Biocare) was the most common software used by the authors. In addition, the flapless surgery is advantageous for positioning of implants but with accurate indication. Although the computer-guided surgery may be helpful for virtual planning of cases with severe bone resorption, the conventional surgical technique is more appropriate. The surgical guide is important for insertion of the implants regardless of the surgical technique, and the success of immediate loading after computer-guided surgery depends on the accuracy of clinical and/or laboratorial steps.

Histórias que a revolução não permitiu contar

Não disponível

El Machete e A Classe Operária: a imprensa comunista mexicana e brasileira (1920-1940)

Pós-graduação em História - FCLAS