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Search Results: 1 - 10 of 30578 matches for " Catarina Santos "
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Um professor, um currículo? Um estudo com duas professoras de Matemática do 3.o ciclo
Catarina Ribeiro,Leonor Santos
Revista Portuguesa de Educa??o , 2011,
Abstract: The objective of this research is to better understand the method by which two Mathematics teachers of middle school, teatching in the same school, the same subject year and the same programmatic contents, exert their own curricular protagonism. This is an interpretative research, with case study design. The data was collected through interviews with the teachers, including classroom observation, the teacher's personal reflection after the observed classes, observation of subject group meetings and document analysis. The results of the research highlight that Inês and Sara, although belonging to the same school and subject group, relate differently with the curriculum. While Inês feels that she has freedom to adapt it to her teaching style and her students needs, acting as a mediator for the prescribed curriculum, Sara tries to follow the curricular guidance strictly, perceiving little room for personal choices. The way they justify their curricular decisions is also distinct.
A bi-estabilidade nas representa??es de movimento humano a partir de estímulos visuais e auditivos
Mendon?a,Catarina; Santos,Jorge A.;
Análise Psicológica , 2010,
Abstract: there is not enough information about the interactions between visual and auditory stimuli in biological motion perception. recent data suggests that there might be a brain area (stsp), which responds both to visual and auditory biological motion stimulation. it is also likely that the intermodal processes in biological motion should tend towards greater interaction and integration of stimuli. in this project, we intended to observe the nature of those interactions. to do so, we used strongly biased bistable visual stimuli. we then compared the visual, auditory and audiovisual conditions in two experiments. the results suggest interaction effects between the different stimuli. the audiovisual condition had the best results, both in the bias reduction and in the proportion of correct answers.
Chemical transformation of abietic acid to new chiral derivatives
Santos, Catarina dos;Zukerman-Schpector, Julio;Imamura, Paulo M.;
Journal of the Brazilian Chemical Society , 2003, DOI: 10.1590/S0103-50532003000600017
Abstract: chemical transformations of the c-ring abietic acid (1a) for the preparation of some new chiral synthons are described. from the intermediate keto-aldehyde 9, readily available from 1b through the ozonide 2, the new tetracyclic diterpene 4 was synthesized. additionally, from 13 and 17, previously prepared from 2, the bicyclic compounds 14, 15 and 16 and the derivatives containing the abeo-abietane[6,6,5] framework 19 and 20 were also synthesized.
Familiares enlutados: compreens?o fenomenológica existencial de suas vivências
Santos, Elionésia Marta dos;Sales, Catarina Aparecida;
Texto & Contexto - Enfermagem , 2011, DOI: 10.1590/S0104-07072011000500027
Abstract: the objective of this study was to better understand the emotions felt by individuals who experience grieving a relative who has died due to cancer. this study is qualitative in nature and was carried out in the light of martin heidegger's existential phenomenology, between april and june of 2009. six participants were selected from the files of the assistance and home care program in the municipal district of cascavel, pr, brazil. relatives were inquired, "how are you dealing with the death of your family member?" from response analysis, three existential themes emerged: becoming distressed facing the possibility of imminent death, discovering their own finitude, and experiencing the temporality of living in a grieving world. in this research, it was found that the nurse should walk beside the grieving person since he/she needs to feel supported throughout the process. living with grief means treading a path in surviving the absence of a loved one and to finding a new sense of existence
Elionésia Marta dos Santos,Catarina Aparecida Sales
Texto & Contexto - Enfermagem , 2011,
Abstract: El estudio tuvo como objetivo comprender los sentimientos de las personas que sufren dolor por la muerte de un ser querido con cáncer. Se trata de una investigación de carácter cualitativo, a la luz de la fenomenología existencial de Martin Heidegger, realizada entre abril y junio de 2009. Los seis participantes entrevistados se seleccionaron de los archivos del Programa de Asistencia y Cuidado en el Hogar, en la ciudad de Cascavel-PR. A los familiares se les hizo la siguiente pregunta: " Cómo se está sintiendo por la muerte de su ser querido?" Del análisis surgieron tres temáticas existenciales: Angustia ante la posibilidad de una muerte inminente, el descubrimiento de la propia finitud, y, experimentar la temporalidad de estar en duelo. Se concluye que el enfermero debe caminar al lado de la persona que está de luto, ya que él necesita sentirse apoyado en todo el proceso, pues vivir el duelo significa transitar un camino para sobrevivir a la ausencia de un ser querido y encontrar un nuevo sentido para la existencia
Chemical transformation of abietic acid to new chiral derivatives
Santos Catarina dos,Zukerman-Schpector Julio,Imamura Paulo M.
Journal of the Brazilian Chemical Society , 2003,
Abstract: Chemical transformations of the C-ring abietic acid (1a) for the preparation of some new chiral synthons are described. From the intermediate keto-aldehyde 9, readily available from 1b through the ozonide 2, the new tetracyclic diterpene 4 was synthesized. Additionally, from 13 and 17, previously prepared from 2, the bicyclic compounds 14, 15 and 16 and the derivatives containing the abeo-abietane[6,6,5] framework 19 and 20 were also synthesized.
Learning Auditory Space: Generalization and Long-Term Effects
Catarina Mendon?a, Guilherme Campos, Paulo Dias, Jorge A. Santos
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0077900
Abstract: Background Previous findings have shown that humans can learn to localize with altered auditory space cues. Here we analyze such learning processes and their effects up to one month on both localization accuracy and sound externalization. Subjects were trained and retested, focusing on the effects of stimulus type in learning, stimulus type in localization, stimulus position, previous experience, externalization levels, and time. Method We trained listeners in azimuth and elevation discrimination in two experiments. Half participated in the azimuth experiment first and half in the elevation first. In each experiment, half were trained in speech sounds and half in white noise. Retests were performed at several time intervals: just after training and one hour, one day, one week and one month later. In a control condition, we tested the effect of systematic retesting over time with post-tests only after training and either one day, one week, or one month later. Results With training all participants lowered their localization errors. This benefit was still present one month after training. Participants were more accurate in the second training phase, revealing an effect of previous experience on a different task. Training with white noise led to better results than training with speech sounds. Moreover, the training benefit generalized to untrained stimulus-position pairs. Throughout the post-tests externalization levels increased. In the control condition the long-term localization improvement was not lower without additional contact with the trained sounds, but externalization levels were lower. Conclusion Our findings suggest that humans adapt easily to altered auditory space cues and that such adaptation spreads to untrained positions and sound types. We propose that such learning depends on all available cues, but each cue type might be learned and retrieved differently. The process of localization learning is global, not limited to stimulus-position pairs, and it differs from externalization processes.
Probing phase-space noncommutativity through quantum mechanics and thermodynamics of free particles and quantum rotors
Catarina Bastos,Alex E. Bernardini,Jonas F. G. Santos
Physics , 2014, DOI: 10.1016/j.physa.2015.07.009
Abstract: Novel quantization properties related to the state vectors and the energy spectrum of a two-dimensional system of free particles are obtained in the framework of noncommutative (NC) quantum mechanics (QM) supported by the Weyl-Wigner formalism. Besides reproducing the magnetic field aspect of a Zeeman-like effect, the momentum space NC parameter introduces mutual information properties quantified by the quantum purity related to the relevant coordinates of the corresponding Hilbert space. Supported by the QM in the phase-space, the thermodynamic limit is obtained, and the results are extended to three-dimensional systems. The noncommutativity imprints on the thermodynamic variables related to free particles are identified and, after introducing some suitable constraints to fix an axial symmetry, the analysis is extended to two- and- three dimensional quantum rotor systems, for which the quantization aspects and the deviation from standard QM results are verified.
Polyphenol Oxidase Activity and Colour Changes of ‘Starking’ Apple Cubes Coated with Alginate and Dehydrated with Air  [PDF]
Susana Daniela Sousa Fernandes, Catarina Araújo da Silva Ribeiro, Maria Filomena de Jesus Raposo, Rui Manuel Santos Costa de Morais, Alcina Maria Miranda Bernardo de Morais
Food and Nutrition Sciences (FNS) , 2011, DOI: 10.4236/fns.2011.25064
Abstract: The objective was to study the effect of alginate coating on polyphenol oxidase (PPO) activity and colour of ‘Starking’ apple cubes during dehydration with hot air. Apple cubes were dehydrated at 20oC, 35oC, or 40oC, with a parallel airflow. Analysis of PPO activity, colour (L*, a*, b*) and dry matter were performed along the dehydration process at each temperature. All samples presented a peak in relative PPO activity in the beginning of the drying. Exponential models fitted well the experimental data after the peak. Cubes without coating presented lower PPO activity, suggesting lower browning, than coated samples throughout the dehydration process, for all temperatures. Better results for coated samples were obtained with a perpendicular airflow drying at 40oC, after dipping the whole apple in water at 60oC for 10 min. In order to prevent coated samples from browning, drying by perpendicular airflow preceded by a thermal treatment of the whole apple is required.
Conhecimento, atitude e prática sobre dengue, seu vetor e a??es de controle em uma comunidade urbana do Nordeste
Santos,Solange Laurentino dos; Cabral,Ana Catarina dos Santos Pereira; Augusto,Lia Giraldo da Silva;
Ciência & Saúde Coletiva , 2011, DOI: 10.1590/S1413-81232011000700066
Abstract: this article presents the results of the study on knowledge, attitude and practice (kap) on dengue in an urban community in northeast of brazil, and the risk situations involved in its transmission. the study was observational and used a semi-structured survey composed of questions about the disease and vector control measures, which was answered by residents of selected households (ic 95%) of the community of santa rosa, in the city of cabo de santo agostinho, pernambuco state. the variables of the kap were classified into appropriate, regular and insufficient. there is adequate knowledge about the characteristics of the vector and regular regarding the disease and the activities of control. the population does not know that the insecticide used in water is chemical and uses this water for domestic consumption and drinking. regarding government activity the knowledge was insufficient. it also demonstrates a non appropriate attitude regarding the prevention of dengue and insufficient practice in the prevention of the vector in the household. the practice of water care was adequate for 41% of residents. the local risk situations raised are related to the intermittency in water and also behavioral.
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