854 resultados para gaps in perception


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Epistemology in philosophy of mind is a difficult endeavor. Those who believe that our phenomenal life is different from other domains suggest that self-knowledge about phenomenal properties is certain and therefore privileged. Usually, this so called privileged access is explained by the idea that we have direct access to our phenomenal life. This means, in contrast to perceptual knowledge, self-knowledge is non-inferential. It is widely believed that, this kind of directness involves two different senses: an epistemic sense and a metaphysical sense. Proponents of this view often claim that this is due to the fact that we are acquainted with our current experiences. The acquaintance thesis, therefore, is the backbone in justifying privileged access. Unfortunately the whole approach has a profound flaw. For the thesis to work, acquaintance has to be a genuine explanation. Since it is usually assumed that any knowledge relation between judgments and the corresponding objects are merely causal and contingent (e.g. in perception), the proponent of the privileged access view needs to show that acquaintance can do the job. In this thesis, however, I claim that the latter cannot be done. Based on considerations introduced by Levine, I conclude that this approach involves either the introduction of ontologically independent properties or a rather obscure knowledge relation. A proper explanation, however, cannot employ either of the two options. The acquaintance thesis is, therefore, bound to fail. Since the privileged access intuition seems to be vital to epistemology within the philosophy of mind, I will explore alternative justifications. After discussing a number of options, I will focus on the so called revelation thesis. This approach states that by simply having an experience with phenomenal properties, one is in the position to know the essence of those phenomenal properties. I will argue that, after finding a solution for the controversial essence claim, this thesis is a successful replacement explanation which maintains all the virtues of the acquaintance account without necessarily introducing ontologically independent properties or an obscure knowledge relation. The overall solution consists in qualifying the essence claim in the relevant sense, leaving us with an appropriate ontology for phenomenal properties. On the one hand, this avoids employing mysterious independent properties, since this ontological view is physicalist in nature. On the other hand, this approach has the right kind of structure to explain privileged self-knowledge of our phenomenal life. My final conclusion consists in the claim that the privileged access intuition is in fact veridical. It cannot, however, be justified by the popular acquaintance approach, but rather, is explainable by the controversial revelation thesis.

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RESUMO: Introdução: A osteoartrose do joelho em particular constitui uma das maiores causas de incapacidades no dia-a-dia, morbilidade e aumento dos custos de saúde na população, na medida em que é uma condição que quando sintomática progride para um padrão que incluí dor articular, perda de força, incapacidade para a marcha e redução da aptidão física. A sua prevalência aumenta com a idade, 7% entre pessoas dos 65-70 anos, e 11,2% para aqueles com 80 anos ou mais, pouco variando entre os estudos existentes. Um recente estudo da Organização Mundial da Saúde (OMS) refere que a osteoartrose é a quarta causa mais importante de incapacidade entre as mulheres e a oitava entre os homens. Objetivo do estudo: Descrever a intervenção da fisioterapia em contexto de prática clínica convencionada e os resultados obtidos em indivíduos com OA, ao nível da intensidade da dor, capacidade funcional e perceção global de melhoria. Desenho Metodológico: Trata-se de um Estudo de coorte prospetivo onde foram incluídos indivíduos de ambos os géneros, entre os 60 e os 80 anos, com osteoartrose do joelho referenciada clinicamente. Após o consentimento informado, os pacientes foram, avaliados em quatro momentos: num primeiro momento (T0), antes de iniciarem o tratamento; (T1) após 4 semanas do início do tratamento; (T2) coincidente com o final do tratamento; e (T3) 3 meses após o início do tratamento. Foi utilizado um Questionário de Caracterização Sócio-Demográfica e Clínica, a Escala numérica da dor – END, o questionário KOOS (Knee Injury and Osteoarthritis Outcome Score) e a versão portuguesa da Patient Global Impression Change (PGIC-PT). A base de seleção dos indivíduos foi realizada numa clínica convencionada do Algarve. Resultados: Foi observado um aumento significativo em todos os outcomes avaliados pelo KOOS, END e PGIC num período até 3 meses após a intervenção. Na avaliação da END em T3 o valor da média foi de 1,63(±0,71). Para o KOOS nas subescalas Sintomas foi de 87,60(±5,86), Dor 85,71(±3,99), AVD 78,23(±3,48), ADL 67,71(±7,16), QV 80,71(±9,14), para a PGIC-AVD 5,29(±0,57), PGIC-DOR 5,97(±0,61). Os resultados obtidos pelo teste de Friedman, revelaram um valor de p<0,005. Assim, a melhoria da incapacidade funcional reportada pelos participantes neste grupo é estatisticamente diferente, e de forma significativa nos diferentes momentos de recolha de dados, durante e após o tratamento (X2 (3)=208,862, p<0,005)/ (X2(3)=205,041, p<0,005). Por fim os valores do somatório dos participantes, que estão inseridos em no grupo dos “Bons Resultados”( ≥5) foi de 27,14% em T0 passando para 100,00% em T3, enquanto que o grupo dos “Maus Resultados”(<5) foi de 72,86% em T0 e 100% em T3. Conclusão: Os resultados do presente estudo sugerem que a intervenção da Fisioterapia efetuadas em clínicas convencionadas nos casos da Osteoartrose do joelho são efetivas na redução significativa dos níveis de dor e incapacidade funcional e na Perceção global de melhoria em pacientes com Osteoartrose do joelho. ---------- ABSTRACT: Introduction: Osteoarthritis of the knee in particular is a major cause of disabilities in their day-to-day morbidity and increased healthcare costs in the population, in that it is a disease that when symptomatic progresses to a pattern that included joint pain, strength loss, inability to walk and reduction of physical fitness. It is referred as a risk factor for falls and fractures. Its prevalence increases with age, 7% of people between 65-70 years, and 11.2% for those aged 80 or more, ranging from some existing studies. A recent study by the World Health Organization (WHO) reports that osteoarthritis is the fourth leading cause of disability among women and eighth among men. Objective: To describe the characteristics and the outcomes of the physiotherapy practice in patients with knee osteoarthritis. Methodology: A prospective cohort study, with 70 individuals, aged between 60 and 80 years with the diagnosis of knee osteoarthritis and referred to physiotherapy treatment, was carried out. After informed consent, patients were evaluated in four different moments: at baseline (T0), before starting treatment; 4 weeks after starting their treatment (T1); 8 weeks after starting their treatment (T2); and in a 3 months follow-up (T3). Patients were assessed for their socio-demographic and clinical characteristics, pain intensity (using the numeric pain rating scale- NRS), disability (using the Knee Injury and Osteoarthritis Outcome Score), and for their global impression of change (using the Portuguese version of the Patient Glogal Impression of Change scale). Results: The findings of this study indicate a significant increase in all outcomes assessed (pain, disability and global impression of change), during and after the physiotherapy treatment. At T3, the average value for the NRS was 1.63 (± 0.71). For KOOS in the symptoms subscales was 87.60 (± 5.86), pain 85.71 (± 3.99), ADL 78.23 (± 3.48), ADL 67.71 (± 7.16), QV 80.71 (± 9.14) for the PGIC-AVD 5.29 (± 0.57), PGIC-PAIN 5.97 (± 0.61). The results obtained though the Friedman test revealed a p-value <0.005. Thus, the improvement of functional capacity reported by participants in the group was statistically different at the different moments of data collection, during and after treatment (X 2 (3) = 208.862, p <0.005) / (X 2 (3) = 205.041, p <0.005). Conclusion: The results of this study show that the physiotherapy treatments made on agreed clinics in cases of osteoarthritis of the knee, are effective in significant reduction in the levels of pain and disability and in perception of overall improvement perception in patients with osteoarthritis of the Knee.

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The restoration materials currently used to fill gaps in architectural historical azulejos (e.g. lime or organic resin pastes) usually show serious drawbacks in terms of compatibility, effectiveness and durability. The existing solutions do not fully protect azulejos in outdoor conditions and frequently result in further deterioration. Geopolymers can be a potential solution for azulejo lacunae infill given the chemical-mineralogical similitude to the ceramic body, and also the durability and versatile range of physical properties that can be obtained through the manipulation of their formulation and curing conditions. This work presents and discusses the viability of the use of geopolymeric pastes to fill lacunae in azulejos or to act as “cold” cast ceramic tile surrogates reproducing missing azulejo fragments. The formulation of geopolymers, namely the type of activators, the aluminosilicate source, the amount of water (to meet adequate workability requirements) and curing conditions were studied. The need for post-curing desalination was also considered envisaging their application in the restoration of outdoor architectural historical azulejos frequently exposed to adverse environmental conditions. The possible advantages and disadvantages of the use of geopolymers in the conservation of azulejos are also discussed. Several techniques were used to study the chemical and physical behavior of geopolymers, namely FT-IR, XRD, MIP, SEM-EDS, WDXRF, electrical conductivity, open porosity, bending strength, adhesion strength, water vapour permeability, thermal expansion and hydric expansion. The results indicate that geopolymers are a promising material for restoration of azulejos, exhibiting some properties, such as adhesion to the ceramic substrate, higher than inorganic materials used nowadays, such as aerial lime based pastes.

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This chapter aims at developing a taxonomic framework to classify the studies on the flexible job shop scheduling problem (FJSP). The FJSP is a generalization of the classical job shop scheduling problem (JSP), which is one of the oldest NP-hard problems. Although various solution methodologies have been developed to obtain good solutions in reasonable time for FSJPs with different objective functions and constraints, no study which systematically reviews the FJSP literature has been encountered. In the proposed taxonomy, the type of study, type of problem, objective, methodology, data characteristics, and benchmarking are the main categories. In order to verify the proposed taxonomy, a variety of papers from the literature are classified. Using this classification, several inferences are drawn and gaps in the FJSP literature are specified. With the proposed taxonomy, the aim is to develop a framework for a broad view of the FJSP literature and construct a basis for future studies.

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Tese de Doutoramento em Ciências da Comunicação - Especialidade em Comunicação Estratégica e Organizacional

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Dissertação de mestrado em Engenharia e Gestão da Qualidade

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Tese de Doutoramento em Ciências da Educação (Especialidade em Desenvolvimento Curricular)

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Dissertação de mestrado integrado em Engenharia Civil

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A survey of European Microbial Biological Resource Centers and their users provided an overview on Microbiology education and training. The results identified future increases in demand despite several shortcomings and gaps in the current offer. Urgent adjustments are needed to match users' needs, integrate innovative programs, and adopt new technologies.

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The lesser grison (Galictis cuja) is one of the least-known mustelids in the Neotropics, despite its broad range across South America. This study aimed to explore current knowledge of the distribution of the species to identify gaps in knowledge and anticipate its full geographic distribution. Eighty-nine articles have mentioned G. cuja since 1969, but only 13 focused on the species. We generated a detailed model of the species' potential distribution that validated previous maps, but with improved detail, supporting previous southernmost records, and providing a means of identifying priority sites for conservation and management of the species.

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The comparison of consecutively manufactured tools and firearms has provided much, but not all, of the basis for the profession of firearm and toolmark examination. The authors accept the fundamental soundness of this approach but appeal to the experimental community to close two minor gaps in the experimental procedure. We suggest that "blinding" and attention to appropriateness of other experimental conditions that would consolidate the foundations of our profession. We do not suggest that previous work is unsound.

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The plant immune system relies to a great extent on the highly regulated expression of hundreds of defense genes encoding antimicrobial proteins, such as defensins, and antiherbivore proteins, such as lectins. The expression of many of these genes is controlled by a family of mediators known as jasmonates; these cyclic oxygenated fatty acid derivatives are reminiscent of prostaglandins. The roles of jasmonates also extend to the control of reproductive development. How are these complex events regulated? Nearly 20 members of the jasmonate family have been characterized. Some, like jasmonic acid, exist in unmodified forms, whereas others are conjugated to other lipids or to hydrophobic amino acids. Why do so many chemically different forms of these mediators exist, and do individual jasmonates have unique signaling properties or are they made to facilitate transport within and between cells? Key features of the jasmonate signal pathway have been identified and include the specific activation of E3-type ubiquitin ligases thought to target as-yet-undescribed transcriptional repressors for modification or destruction. Several classes of transcription factor are known to function in the jasmonate pathway, and, in some cases, these proteins provide nodes that integrate this network with other important defensive and developmental pathways. Progress in jasmonate research is now rapid, but large gaps in our knowledge exist. Aimed to keep pace with progress, the ensemble of jasmonate Connections Maps at the Signal Transduction Knowledge Environment describe (i) the canonical signaling pathway, (ii) the Arabidopsis signaling pathway, and (iii) the biogenesis and structures of the jasmonates themselves.

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INTRODUCTION: Trialing for intrathecal pump placement is an essential part of the decision-making process in placing a permanent device. In both the United States and the international community, the proper method for trialing is ill defined. METHODS: The Polyanalgesic Consensus Conference (PACC) is a group of well-published experienced practitioners who meet to update the state of care for intrathecal therapies on the basis of current knowledge in the literature and clinical experience. Anexhaustive search is performed to create a base of information that the panel considers when making recommendations for best clinical practices. This literature, coupled with clinical experience, is the basis for recommendations and for identification of gaps in the base of knowledge regarding trialing for intrathecal pump placement. RESULTS: The panel has made recommendations for the proper methods of trialing for long-term intrathecal drug delivery. CONCLUSION: The use of intrathecal drug delivery is an important part of the treatment algorithm for moderate to severe chronic pain. It has become common practice to perform a temporary neuroaxial infusion before permanent device implantation. On the basis of current knowledge, the PACC has developed recommendations to improve care. The need to update these recommendations will be very important as new literature is published.

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Cells defective in any of the RAD51 paralogs (RAD51B, RAD51C, RAD51D, XRCC2, and XRCC3) are sensitive to DNA cross-linking agents and to ionizing radiation. Because the paralogs are required for the assembly of DNA damage-induced RAD51 foci, and mutant cell lines are defective in homologous recombination and show genomic instability, their defect is thought to be caused by an inability to promote efficient recombinational repair. Here, we show that the five paralogs exist in two distinct complexes in human cells: one contains RAD51B, RAD51C, RAD51D, and XRCC2 (defined as BCDX2), whereas the other consists of RAD51C with XRCC3. Both protein complexes have been purified to homogeneity and their biochemical properties investigated. BCDX2 binds single-stranded DNA and single-stranded gaps in duplex DNA, in accord with the proposal that the paralogs play an early (pre-RAD51) role in recombinational repair. Moreover, BCDX2 complex binds specifically to nicks in duplex DNA. We suggest that the extreme sensitivity of paralog-defective cell lines to cross-linking agents is owing to defects in the processing of incised cross links and the consequential failure to initiate recombinational repair at these sites.

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Las sesiones de laboratorio ofrecen la posibilidad de simular a pequeña escala el proceso de investigación. En una actividad formativa basada en la metodología PBL (Problem Based Learning), cada grupo de alumnos recibe el encargo de comprobar de manera experimental el efecto de una sustancia sobre el crecimiento de una población de la planta acuática Lemna minor. Después de completar el diseño experimental y llevar a cabo el ensayo, los alumnos deben redactar un informe final en formato póster de forma que presenten sintéticamente los objetivos del ensayo, el procedimiento experimental seguido, los resultados obtenidos y las conclusiones alcanzadas. La actividad finaliza con la presentación de todos los pósters en una sesión específica. Esta práctica docente ha permitido detectar algunos déficits formativos en nuestros alumnos que han motivado la implementación de estrategias correctoras.