Abandonada

Senior Project submitted to The Divisions of Arts of Bard Colleg

Ophthalmic aspects of idiopathic intracranial hypertension syndrome (pseudotumor cerebri)

A síndrome do pseudotumor cerebral é uma condição caracterizada por elevação da pressão intracraniana na ausência de lesões expansivas e de ventriculomegalia e com a constituição do líquor normal em um paciente sem alterações no nível de consciência. A terminologia desta afecção modificou nos últimos anos acompanhando os avanços nos métodos diagnósticos e no conhecimento da sua fisiopatogenia. Quando nenhuma causa é identificada a condição é denominada hipertensão intracraniana idiopática. Os pacientes freqüentemente são examinados pelo oftalmologista, já que apresentam achados como papiledema, diplopia e perda visual, uma complicação freqüentemente grave e irreversível. Neste artigo, revisamos os critérios diagnósticos, as alterações oftalmológicas, em especial a perda visual, bem como o tratamento enfatizando a importância do oftalmologista no diagnóstico e na monitoração da visão durante o tratamento clínico desta afecção, bem como na realização do tratamento cirúrgico pela descompressão da bainha do nervo óptico.Pseudotumor cerebri is a syndrome of increased intra-cranial pressure without a space-occupying lesion or ventriculomegaly in a patient with normal level of conscience and normal cerebrospinal fluid constitution. The terminology for the disorder has changed over the years in accordance with advances in diagnostic technology and insights into the disease process. When no secondary cause is identified, the syndrome is termed idiopathic intracranial hypertension. Patients are not uncommonly seen by ophthamologists since they present with papiledema, double vision and visual loss, a frequently severe and irreversible complication. In this paper we review the diagnostic criteria and the ophthalmic manifestations of this condition. We also emphasize the importance of the ophthalmlogist in the diagnosis and monitoring of visual function during the medical treatment of this condition as well as in the in the event of surgical treatment performed using optic nerve sheath decompression

Effects of Knife Jointing and Wear on the Planed Surface Quality of Northern Red Oak Wood

Jointing is a technique to obtain the same cutting circle for all knives mounted in a cutterhead of a peripheral knife planer. Initially the jointed land at the cutting edge has a 0 degree clearance angle that becomes negative with workpiece motion relative to the cutterhead and as the cutting edge wears. Jointed knives may crush cells on the planed surface and affect the quality and performance of wood for end uses. We evaluated the gluing properties of northern red oak planed surfaces that had been planed using one of three jointed land widths, over four levels of knife wear. Under these cutting conditions, surface roughness significantly influenced gluability more than cellular damage. In sum, gluing performance was positively affected by knife wear, and no variation in gluing performance among the jointed land widths studied existed. In samples after accelerated aging, the effects of wear on gluing were more pronounced, with an improvement in gluing performance, associated with an increase in surface roughness and permeability with increased knife wear. These results suggest a jointed land of 1.2 mm as the maximum allowable width for planing red oak wood prior to gluing. Also, the planed surface gluability of this wood may be enhanced using a knife with the rake face recession of 332 μm and the clearance face recession of 438 μm, which results in a surface roughness of 40 μm Rmax

Organizational performance evaluation in intangible criteria: a model based on knowledge management and innovation management

AbstractToday innovation and knowledge management are determining factors for success and continuity of organizations. However, because they are considered intangibles, their measurement becomes a challenge. Therefore, this study aimed to develop a model to measure organizational performance with a focus on knowledge management and innovation management. To be able to do that, we used a quantitative research study, characterized as a multi-case study applied to three companies in the metal-mechanic sector in southern Brazil. The methodology uses the assumptions of well-known methods such as the Key Performance Indicators, the Swing Weighting and Simple Attribute Rating Technique. With the results, it could be seen that the proposed model can be an effective tool for assessing organizational performance and that, in its application, the surveyed organizations could already identify their main weaknesses and use the results reported to improve its management

Price-setting policy determinants: micro-evidence from Brazil

The paper studies the frequency of price changes from a survey data on Brazilian companies. The data set has the advantage of including all of the economic sectors: agricultural and food products, trading, industry and services. Strong evidence of nominal price rigidities is found on the data with average and median price durations around 10.1 and 8.1 months, which is very close to results reported for the euro area and the United States. Using econometric modeling through an ordered probit and also an OLS regression, we find that price change duration is mostly explained by the wage duration, the degree of competition, product specialization, the elasticity of demand and economic sector dummies. The empirical results refute somewhat commonly used macroeconomic modeling for monetary policy evaluation; however they do not refute time-dependent models since those are consistent with different price durations across firms. These results shed light on some stylized facts that a macroeconomic price-setting model would need to reproduce