Traços de manufactura na utensílagem óssea gravettense esolutrense de Vale Boi (Vila do Bispo, Algarve)

Es presenta una proposta de metodologia d’anàlisi de traces de manufactura deixades pels utensilis lítics sobre la superfície dels artefactes en òs i asta de cronologia gavetiana i solutriana, recuperats del jaciment arqueològic de Vale Boi. Aquesta metodologia té en compte els atributs morfològics, així com també les alteracions tafonòmiques que es veriquen a les superficies òssies.This is a methodological analysis of the traces of manufacture left by the lithic tools on the gravettian and solutrean bone tools surface from Vale Boi. We take in acount the morphological atributes and also the taphonomical alterations the osseous artefacts suffered during the time they were buried.Apresenta-se aqui uma proposta de metodologia de análise dos traços de manufactura deixados pelos utensílios líticos sobre a superfície dos artefactos em osso e em haste de cronologia gravettense e solutrense, recuperados do sítio arqueológico de Vale Boi. Esta metodologia tem em conta os atributos morfológicos, mas também as alterações tafonómicas que se verificaram nas superfícies ósseas

Um sistema de supervisão como processo integrante do crescimento pessoal e profissional dos docentes ao serviço do desenvolvimento institucional

79 f.Este projecto de intervenção inscreve-se no âmbito da unidade curricular de Projecto de Investigação, na Pós-Graduação de Supervisão Pedagógica e Formação de Formadores, orientado pelos Docentes João Gouveia e José Luís Gonçalves. O objectivo consiste em criar um Sistema de Supervisão num contexto real de Ensino Particular - Colégio Novo da Maia (CNM), de forma a responder às necessidades actuais da equipa docente e na equipa de Supervisão. A urgência em acompanhar e apoiar os professores que recruta e os que integram a equipa, no contexto de desenvolvimento e de rápido crescimento em que o Colégio se encontra implica a formalização de um sistema de Supervisão exequível para os supervisores. O sistema de Supervisão que aqui se propõe confirma os pressupostos do Projecto Educativo na concepção de uma escola “como comunidade na qual todos os elementos que a compõe actuam de uma forma responsável e flexível” (in Projecto Educativo do CNM). Na construção deste sistema de Supervisão efectuaram-se pesquisas e leituras que permitiram encontrar um quadro conceptual de partida para uma modelização da acção supervisiva de uma forma estruturada e sustentada em modelos de referência no campo da Supervisão. Com base nos modelos Clínico, Reflexivo e Ecológico, tornou-se possível a construção de um Sistema de Supervisão à luz das necessidades específicas dos membros equipa docente e das prioridades para acção educativa contempladas no Projecto Educativo do CNM

Imagining pain: the representation of violence in beloved, push, and the dew breaker

Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Letras/Inglês e Literatura Correspondente, Florianópolis, 2011A presente tese reflete sobre maneiras de sermos afetados por representações de violência e sofrimento humano. A discussão parte da incapacidade do discurso midiático em sensibilizar sua audiência quando imagens violentas não são capazes de causar choque e empatia. Em contraste a estas representações, este estudo examina representações literárias e a experiência de leitura de narrativas que são temática e esteticamente violentas. O argumento segue a metodologia proposta por Marco Abel (2007) na qual a representação de eventos violentos é abordada em termos de sua força estética; em termos do potencial da literatura em suspender o significado e a verdade evitando, assim, a transformação da experiência da violência em uma representação da violência. As análises de Beloved (1987) de Toni Morrison, Push (1996) de Sapphire e The Dew Breaker (2004) de Edwidge Danticat ilustram como escritoras negras norte-americanas utilizam o recurso narrativo deferral of truth ("postergar a verdade"). Tal recurso carrega o potencial de subverter o conhecimento do leitor, trazer de volta sensação e oferecer a possibilidade de criarmos novos significados. Desta forma, estas narrativas de violência e dor tornam-se espaços de indeterminação e dúvida, mas também de imaginação, criatividade e reflexão

Primary school pupils’ misconceptions of the human respiratory system in primary school students: from identification to deconstruction

This study involved 38 students from the 6th year of schooling attending a state school in Lisbon in which the Science syllabus is centered on the study of human body systems. Its purpose was to determine: (i) whether the students possessed any of the misconceptions related to the human respiratory system referenced in other studies (e.g. air enters and leaves our bodies with no function, air tubes connect the lungs to the heart, the air exhaled is rich in carbon dioxide and poor in oxygen); (ii) whether a learning design focused on the deconstruction of these misconceptions would be effective to the conceptual change of these pupils. To this end, the experimental group (class A) experienced a learning design expressly conceived for the deconstruction of the misconceptions related to the human respiratory system, while the control group (class B) experienced a traditional approach with interactive lectures and use of the school textbook. The data were collected through a questionnaire administered in two stages (pre and post-test) and a t-test was used to compare the means obtained by the two groups in the pre-test and to verify the gains of each class between the pre and the post-test. After analysis of the results of the pre-test, it was found that the students of the two groups had several misconceptions of the human respiratory system. The experimental group had more significant gains, although the students in both groups reduced their misconceptions. Both results support the idea that formal education, if provided with well-structured activities, can contribute to the conceptual restructuring of the students’ mind, albeit with a different rate of success. Finally, the present study also helps to confirm the universality of certain misconceptions.info:eu-repo/semantics/publishedVersio

Expression of MMP-13 in Human Temporomandibular Joint Disc Derangement and Osteoarthritis

Objective: MMP-13 performs digestion of collagen, which is a primary component of the temporomandibular joint (TMJ) articular disc. This study evaluated the expression of MMP-13 in patients with anterior disc displacement with (ADDwR) and without reduction (ADDwoR), and in the presence of TMJ osteoarthrosis. Methods: Thirty-nine human temporomandibular joint disc samples were collected and divided in two ways: ADDwR (21 samples), ADDwoR (10 samples), and a control group (8 samples); and with osteoarthrosis (10 samples) and without osteoarthrosis (29 samples). Immunostaining of the TMJ discs was statistically compared between the groups. Results: There was no statistically significant difference for the area of MMP-13 immunostaining between the control group, ADDwR, and ADDwoR, nor between groups with and without osteoarthrosis. Conclusion: This study suggests MMP-13 is not significantly involved in collagen degradation in human TMJ disc displacement or osteoarthrosis

Internal dose of particles in the elderly: modeling based on aerosol measurements

The paper presents an integrated methodology that combines experimental and modeling techniques and links exposure to airborne particulate matter (PM) with internal dose in the respiratory system and burden in adjacent tissues over a period of time. The methodology is used to estimate doses in the respiratory systems of elders that reside in 10 elderly care centers (ECCs) in the metropolitan area of Lisbon. Measurements of PM were performed in the ECCs and combined with a time-budget survey for the occupants. This information served as input to the first model that estimated particle doses in the different regions of the respiratory tract of the elderly, and then a second model was used to calculate particle build-up in the alveolar region, the interstitium and the hilar lymph nodes of the elders over a 5-year exposure period. It was found that in 5 years of continuous exposure to the average particle concentration measured over all ECCs, 258 mg of all particles are deposited on the surface of the alveoli of which 79.6% are cleared, 18.8% are retained in the alveolar region, 1.5% translocate to the hilar lymph nodes, and 0.1% are transferred to the interstitium.info:eu-repo/semantics/publishedVersio

Emission channeling studies of Indium Phosphide at low temperatures at CERN-ISOLDE

Tese de mestrado, Física (Física Nuclear e Partículas), Universidade de Lisboa, Faculdade de Ciências, 2009111In radioactive atoms were implanted into a single crystal of InP. After annealing for lattice recovery of implantation defects, the lattice site location of 111In/111Cd was studied with the emission channelling technique, from room temperature ( 300K) down to 50K at CERN-ISOLDE 2.This work aims to test a recently developed cooling station for emission channelling experiments. InP is a material with a relatively low Debye temperature, where significant changes of atomic vibrations are expected with temperature, thus providing an ideal test ground of the effects, which can be expected to influence the data, i.e., dechanneling from lattice vibration and changes of the root mean square displacement (r.m.s.) of the atomic position of the probe atom. In the future we intend to apply these studies to monitor individual impurities or lattice constituents, with temperature, upon phase transitions as well as studying lattice sites of dopants implanted at low temperature. 2"The On-Line Isotope Mass Separator ISOLDE is a facility dedicated to the production of a large variety of radioactive ion beams for a great number of different experiments" http://isolde.web.cern.ch/ISOLDE

Light pollution and energy efficiency: a case study of the village of Vialonga

Since industrialization and the formation of larger urban centers in the nineteenth century, pollution of the environment was always present in daily life in various ways, namely in the form of light. Light pollution can cause various consequences, both for humans and for their ecosystem, producing effects on environmental, social, economic and scientific level. In Portugal, the lighting is responsible for 3% of total electricity consumption, energy costs are in some cases more than 50% towards the costs incurred by municipalities with energy, checking-in recent years a trend similar to that improvement of illumination levels in the region (about 4 to 5% per year). Proper use of lighting brings many benefits both to the citizen and environment, since greater energy efficiency can contribute to reducing CO2 emissions, energy costs, as well as to decrease the use of resources not-renewable and/or contamination of renewable resources, which can occurs in the process of obtaining electricity. The present study has a main goal to analyze the illuminance levels associated to the public lighting of the village of Vialonga, Vila Franca de Xira (Portugal), to verify if it is efficient. The aim is also to relate the efficiency of street lighting with the existence of light pollution

Immunohistochemical Expression of Matrix Metalloprotease-2 and Matrix Metalloprotease-9 in the Disks of Patients with Temporomandibular Joint Dysfunction

Purpose Matrix metalloproteases (MMPs) are tissue-remodeling enzymes that function during the remodeling process, such as in immune-inflammatory diseases. Metalloprotease-2 (MMP-2) and metalloprotease-9 (MMP-9) are gelatinases that degrade several types of extracellular matrix collagen. It is hypothesized that in temporomandibular joint (TMJ) dysfunction, MMP-2 and MMP-9 expression levels may be elevated. Therefore, the objective of this study is to determine the association of MMP-2 and MMP-9 expression with temporomandibular joint dysfunction using an immunohistochemical approach to evaluate the joint disk. Material and Methods A total of 45 human temporomandibular joint samples were collected, with 36 samples in the test group (patients with anterior disk displacement with reduction (n = 29) and without reduction (n = 7)) and nine samples in the control group. The immunostaining of the TMJ disks was statistically compared between the groups (P \u3c 0.05). Results There was a statistically significant difference for the area of MMP-2 immunostaining between the control group and the displacement disks with reduction group (ADDwR) (P = 0.048) and between the groups with disk displacement and without reduction (ADDwoR) (P = 0.029). The expression of MMP-2 was significantly elevated in the ADDwoR group. Conclusion No statistically significant difference was found between the variable area of MMP-9 expression in the disk with and without disk displacement, as determined by immunohistochemical analysis. However, there was an elevation of MMP-2 expression in the disks of patients with displacement and without reduction (more severe alteration)