924 research outputs found

    Film holder for curved vacuum platen

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    Vacuum apparatus for holding photographic film of various widths against cylindrically curved patens is discussed. Construction details and method of operation are explained. Illustration of equipment is provided

    Alignment microscope for rotating laser scanner

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    Microscopic assembly for alignment of rotary laser focuses on small film area along scan line at oblique angle. Suitable choice of angle and location of optical components project laser beam line as X coordinate reticle. Coordination with horizontal recticle line included microscope facilitates Y coordinate position indexing

    Indexing film with a fluidic sensor

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    Fluidic sensor is used to measure passage of film without mechanical contact with counting device. Same sensor system may be used for different sizes of film. System has two fluidic sensors and operates on principle of electrically recording interruptions in air stream

    Performance Analysis of Network-Assisted Two-Hop D2D Communications

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    Network-assisted single-hop device-to-device (D2D) communication can increase the spectral and energy efficiency of cellular networks by taking advantage of the proximity, reuse, and hop gains when radio resources are properly managed between the cellular and D2D layers. In this paper we argue that D2D technology can be used to further increase the spectral and energy efficiency if the key D2D radio resource management algorithms are suitably extended to support network assisted multi-hop D2D communications. Specifically, we propose a novel, distributed utility maximizing D2D power control (PC) scheme that is able to balance spectral and energy efficiency while taking into account mode selection and resource allocation constraints that are important in the integrated cellular-D2D environment. Our analysis and numerical results indicate that multi-hop D2D communications combined with the proposed PC scheme can be useful not only for harvesting the potential gains previously identified in the literature, but also for extending the coverage of cellular networks.Comment: 6 pages and 7 figure

    The Freudian censorship: a new Logos, a new subject

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    Este trabalho analisa os principais aspectos da teoria freudiana, colocando em evidência uma nova lógica que Freud nos lega, a partir da invenção do conceito de inconsciente, e uma outra concepção de sujeito que daí resultará. O propósito das duas tarefas é pôr em relevo a novidade de uma outra forma de pensar, acentuando a cisão que ela estabelece no seio da racionalidade ocidental.PALAVRAS-CHAVE: Logos. Inconsciente. Desejo. Sujeito. Cesura. ABSTRACTThis paper analyses the main aspects of Freudian theory, shedding light on a new logic which Freud leaves to us from the invention of the unconscious concept, and the resulting new way to view the subject that it ignited. The purpose of the two tasks is to highlight the novelty of a different way of thinking, pointing out the split it creates within Western rationality.KEYWORDS: Logos. Uncounsious. Desire. Subject. Censorship.This paper analyses the main aspects of Freudian theory, shedding light on a new logic which Freud leaves to us from the invention of the unconscious concept, and the resulting new way to view the subject that it ignited. The purpose of the two tasks is to highlight the novelty of a different way of thinking, pointing out the split it creates within Western rationality.KEYWORDS: Logos. Uncounsious. Desire. Subject. Censorship

    Concentração de ferro anormalmente aumentada nos núcleos da base na síndrome de Shy-Drager

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    Report of an early case of Shy-Drager syndrome in a 67 year-old woman patient. Autonomic failure was diagnosed by functional evaluation as well as laboratory tests. MR imaging disclosed a prominent putamina hypodensity in T2-weighted images at high field strength due to iron increased depositing in this basal ganglia. MR imaging evidences confirm Shy-Drager syndrome diagnosis, and contributes for differential diagnosis of idiopathic hypotension (pure autonomic failure) in special in SDS early cases.É relatado o caso de unm paciente de 67 anos de idade com quadro inicial da síndrome de Shy-Drager. O diagnóstico foi possível por provas funcionais autonômicas e exames laboratoriais. A ressonância magnética cerebral (contraste baseado na densidade de prótons e em T2) objetivou proeminente hipodensidade putaminal em T2, secundária ao aumento do depósito do ferro nesta região. Esse achado da RM confirma o diagnóstico da síndrome de Shy-Drager e permite diferenciá-la da hipotensão ortostática idiopática, particularmente na fase de início da SSD quando os sinais de comprometimento do SNC são discretos ou estão ausentes.34234

    Amiodarone neuropathy clinico-pathological study of two cases

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    Two patients, a 40-year-old woman and a 75-year-old man, were investigated due to a chronic polyneuritis. Amiodarone was used by them to treat refractory cardiac arrythmia since 4 and 6 years before, respectively. The EMG study showed an axonal neuropathy. The light and electronmicroscopical study of sural nerve displayed a losse of large myelinated fibers and a marked reduction of unmyelinated axons, associated with osmiophilic lamellated inclusions in Schwann cells and endothelial venulae. The interruption of amiodarone therapy improved neuropathy. Considered together with similar reports in perhexiline neuropathy and with chloroquine induced neuropathy this would stress the importance of these new drug-induced neurolipidosis.Dois pacientes, uma mulher de 40 anos e um homem de 75 anos, apresentavam polineurite sensítivo-motora, cujo único antecedente era o uso de amiodarona há 4 e 6 anos respectivamente. O ENMG revelou quadro neuropático tipo axonal. A biópsia do nervo sural mostrou rarefação axonal, mielínica e amielínica, bem como inclusões lamelares osmiofílicas nas células de Schwann e no endotélio venular. Com a retirada da amiodarona houve regressão da polineurite. À semelhança do que foi descrito na neuropatia pelo maleato de perhexiline e pela cloroquina, a amiodarona constitui importante fator de indução de neuro-lipidose medicamentosa.47447
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