Solar system puzzle kit : an activity for earth and space science /

Grades 5-8.

NASA's space science and applications program : a statement presented to the Committee on Aeronautical and Space Sciences, United States Senate, April 20, 1967 /

"The material in this booklet is a reprint of a portion of that which was prepared by NASA's Office of Space Science and Applications for presentation to the Congress."

A Sham Delight Has No Exchange Value: Henri Lefebvre and the evolution of Bernard Tschumi's early architectural theory

Thesis (Master's)--University of Washington, 2016-06

Teaching College Writing in a High School Setting: The Impact of Concurrent Enrollment on Teacher Learning and Practice

Thesis (Ph.D.)--University of Washington, 2016-06

Ethobehavioral Studies of Fear, Sex, and Biological Rhythms

Thesis (Ph.D.)--University of Washington, 2016-06

Avoidance of obstacles in the absence of visual awareness

The spatial character of our reaching movements is extremely sensitive to potential obstacles in the workspace. We recently found that this sensitivity was retained by most patients with left visual neglect when reaching between two objects, despite the fact that they tended to ignore the leftward object when asked to bisect the space between them. This raises the possibility that obstacle avoidance does not require a conscious awareness of the obstacle avoided. We have now tested this hypothesis in a patient with visual extinction following right temporoparietal damage. Extinction is an attentional disorder in which patients fail to report stimuli on the side of space opposite a brain lesion under conditions of bilateral stimulation. Our patient avoided obstacles during reaching, to exactly the same degree, regardless of whether he was able to report their presence. This implicit processing of object location, which may depend on spared superior parietal-lobe pathways, demonstrates that conscious awareness is not necessary for normal obstacle avoidance.

Making media work in space: An interdisciplinary perspective on media and communication requirements for current and future space communities

As humans expand into space communities will form. These have already begun to form in small ways, such as long-duration missions on the International Space Station and the space shuttle, and small-scale tourist excursions into space. Social, behavioural and communications data emerging from such existing communities in space suggest that the physically-bounded, work-oriented and traditionally male-dominated nature of these extremely remote groups present specific problems for the resident astronauts, groups of them viewed as ‘communities’, and their associated groups who remain on Earth, including mission controllers, management and astronauts’ families. Notionally feminine group attributes such as adaptive competence, social adaptation skills and social sensitivity will be crucial to the viability of space communities and in the absence of gender equity, ‘staying in touch’ by means of ‘news from home’ becomes more important than ever. A template of news and media forms and technologies is suggested to service those needs and enhance the social viability of future terraforming activities.

Crystallization of the C-terminal domain of the mouse brain cytosolic long-chain acyl-CoA thioesterase

The mammalian long-chain acyl-CoA thioesterase, the enzyme that catalyses the hydrolysis of acyl-CoAs to free fatty acids, contains two fused 4HBT (4-hydroxybenzoyl-CoA thioesterase) motifs. The C-terminal domain of the mouse long-chain acyl-CoA thioesterase (Acot7) has been expressed in bacteria and crystallized. The crystals were obtained by vapour diffusion using PEG 2000 MME as precipitant at pH 7.0 and 290 K. The crystals have the symmetry of space group R32 ( unit-cell parameters a = b = 136.83, c = 99.82 angstrom, gamma = 120 degrees). Two molecules are expected in the asymmetric unit. The crystals diffract to 2.4 angstrom resolution using the laboratory X-ray source and are suitable for crystal structure determination.

Spectroscopic analysis of terrestrial analogues for the interpretation of surface composition of rocky bodies in the solar system. Effects of mineral mixing and particle size. Applications to moon, mars and implications for mercury.

Among the Solar System’s bodies, Moon, Mercury and Mars are at present, or have been in the recent years, object of space missions aimed, among other topics, also at improving our knowledge about surface composition. Between the techniques to detect planet’s mineralogical composition, both from remote and close range platforms, visible and near-infrared reflectance (VNIR) spectroscopy is a powerful tool, because crystal field absorption bands are related to particular transitional metals in well-defined crystal structures, e.g., Fe2+ in M1 and M2 sites of olivine or pyroxene (Burns, 1993). Thanks to the improvements in the spectrometers onboard the recent missions, a more detailed interpretation of the planetary surfaces can now be delineated. However, quantitative interpretation of planetary surface mineralogy could not always be a simple task. In fact, several factors such as the mineral chemistry, the presence of different minerals that absorb in a narrow spectral range, the regolith with a variable particle size range, the space weathering, the atmosphere composition etc., act in unpredictable ways on the reflectance spectra on a planetary surface (Serventi et al., 2014). One method for the interpretation of reflectance spectra of unknown materials involves the study of a number of spectra acquired in the laboratory under different conditions, such as different mineral abundances or different particle sizes, in order to derive empirical trends. This is the methodology that has been followed in this PhD thesis: the single factors previously listed have been analyzed, creating, in the laboratory, a set of terrestrial analogues with well-defined composition and size. The aim of this work is to provide new tools and criteria to improve the knowledge of the composition of planetary surfaces. In particular, mixtures composed with different content and chemistry of plagioclase and mafic minerals have been spectroscopically analyzed at different particle sizes and with different mineral relative percentages. The reflectance spectra of each mixture have been analyzed both qualitatively (using the software ORIGIN®) and quantitatively applying the Modified Gaussian Model (MGM, Sunshine et al., 1990) algorithm. In particular, the spectral parameter variations of each absorption band have been evaluated versus the volumetric FeO% content in the PL phase and versus the PL modal abundance. This delineated calibration curves of composition vs. spectral parameters and allow implementation of spectral libraries. Furthermore, the trends derived from terrestrial analogues here analyzed and from analogues in the literature have been applied for the interpretation of hyperspectral images of both plagioclase-rich (Moon) and plagioclase-poor (Mars) bodies.

Fuga da promessa e nostalgia do divino: a antropologia de Dom Casmurro de Machado de Assis como tema no diálogo entre teologia e literatura

A ocupação principal deste trabalho residiu no diálogo entre a teologia e a literatura, primordialmente no interior do romance machadiano Dom Casmurro. Esta dissertação preconizou a antropologia emergente no romance machadiano em questão, como lugar das reflexões de cunho teológico. Para pauta de discussões, foram trazidas obras referenciais, que se apresentaram como o estado atual da questão acerca do diálogo entre teologia e literatura. A sustentação teórica deste trabalho se deu com apropriações conceituais de Paul Ricoeur, Antonio Carlos de Melo Magalhães e Gerard Genette. Portanto, o objetivo deste trabalho se delimitou na demonstração das relações entre o Deus que se revela e o humano machadiano, a partir do caráter antropológico do romance Dom Casmurro. A promessa e o caráter paratextual do capítulo em que ela é narrada, conduziram todas as análises realizadas, que culminaram na observação do antropológico como tema central do romance. Defendemos que a quebra das relações estabelecidas entre o humano machadiano e o Deus da promessa estabeleceu a instalação de um mundo desencantado diante da existência e da realidade do protagonista do romance, Bento Santiago.(AU)

MÍDIA E COMUNIDADE: estudo sobre produção e recepção da rádio Heliópolis FM

O trabalho é um estudo sobre produção e recepção da rádio Heliópolis FM, por seu público alvo, moradores de Heliópolis. O objetivo foi compreender como a rádio é percebida por seus ouvintes. Metodologicamente, o estudo foi divido em duas etapas. A primeira é mais conceitual e baseada em pesquisa bibliográfica. Na etapa seguinte, resgata-se o histórico da emissora e verifica-se a apropriação da Heliópolis FM por moradores e se a emissora desempenha papel comunitário, investigando-se como a rádio é apropriada por seus ouvintes assíduos. A aproximação à recepção foi feita tendo por base a vertente teórico-metodológica do uso social dos meios, de Jesús Martín-Barbero, segundo o qual este tipo de estudo consiste no deslocamento do espaço de interesse dos meios para o lugar onde é produzido o seu sentido movimentos sociais e, de um modo especial, daqueles que partem do bairro (1997). A técnica usada foi a entrevista semi-estruturada. Conclui-se que a rádio é percebida como comunitária por seus receptores principalmente porque abre espaço para a população local produzir programas, escolher as músicas que serão tocadas, apresentar seus trabalhos e utilizar seus serviços como o de localização de pessoas e documentos perdidos gratuitamente.(AU)

CAPULANAS NA SALA DE AULA: OS SENTIDOS DA FORMAÇÃO DE EDUCADORES(AS) EM MOÇAMBIQUE

Este trabalho é um registro das histórias de vida de muitas pessoas. As histórias aqui apresentam identidades diferentes: fragmentos vividos e guardados como expressões culturais orais, escritos permeados pela emoção, imagens capturadas pelos encontros, tudo isso organizado e escrito ganha forma e significado com a possibilidade desse trabalho. À medida que os encontros foram oportunizados iniciaram-se outros momentos que se desdobraram em muitos mais. A implantação do Programa Alfabetização Solidária em Moçambique, PASMO, viabilizou que essa experiência fosse investigada para identificar os sentidos da formação de educadores(as) no Brasil e em Moçambique. O objetivo desse trabalho centrou-se no desenvolvimento de nova proposta para a formação de educadores(as) em Moçambique, na África, tendo como tema central os encontros entre profissionais de educação que passaram a transitar por contextos diferenciados, envolvendo países, culturas, línguas e outras formas de comunicação. Ênfase na construção de conhecimento foi dada à cultura local, línguas moçambicanas e oralidade. A inserção de mulheres moçambicanas mostrou-se importante como forma de apropriação e mobilidade social e cultural. Foi no espaço da sala de aula, nos fazeres próprios da docência e no encontro com educadores(as), que se construiu e re-construiu conhecimentos específicos que sinalizaram para novas práticas pedagógicas. Os encontros promovidos pela educação conduziram a caminhos e trilhas da formação de educadores(as), primeiro no Brasil, depois em Moçambique.(AU)

The primacy of theory

Purpose – The purpose of this editorial is to provide indicative guidance to prospective EJM contributors of the importance of theoretical development to the success of submissions. Design/methodology/approach – The authors use a combination of conceptual thinking and theoretical literature to present key concepts of theory and its relevance to a manuscript's contribution to knowledge. Findings – The authors propose some guidelines for researchers who wish to publish the results of their work in EJM, and these also have relevance to other top academic journals. Research limitations/implications – The topic of theoretical conceptualisation and development is a complex one. Because of space constraints, the coverage of many issues is necessarily brief in this article. Practical implications – Scholars should find the thoughts contained in this article to be of significant benefit to their publication efforts in EJM and other top journals. Originality/value – While other top marketing journals have in the past provided similar guideline-style pieces, this is one of the few to be written from an inclusive perspective, with the explicit focus on the theoretical development stage.

Mechanisms of transfer film formation on data recording heads

The increasing demand for high capacity data storage requires decreasing the head-to-tape gap and reducing the track width. A problem very often encountered is the development of adhesive debris on the heads at low humidity and high temperatures that can lead to an increase of space between the head and media, and thus a decrease in the playback signal. The influence of stains on the playback signal of reading heads is studied using RAW (Read After Write) tests and their influence on the wear of the heads by using indentation technique. The playback signal has been found to vary and the errors to increase as stains form a patchy pattern and grow in size to form a continuous layer. The indentation technique shows that stains reduce the wear rate of the heads. In addition, the wear tends to be more pronounced at the leading edge of the head compared to the trailing one. Chemical analysis of the stains using ferrite samples in conjunction with MP (metal particulate) tapes shows that stains contain iron particles and polymeric binder transferred from the MP tape. The chemical anchors in the binder used to grip the iron particles now react with the ferrite surface to create strong chemical bonds. At high humidity, a thin layer of iron oxyhydroxide forms on the surface of the ferrite. This soft material increases the wear rate and so reduces the amount of stain present on the heads. The stability of the binder under high humidity and under high temperature as well as the chemical reactions that might occur on the ferrite poles of the heads influences the dynamic behaviour of stains. A model of stain formation taking into account the channels of binder degradation and evolution upon different environmental conditions is proposed.

Applications of fractals to image data compression

Digital image processing is exploited in many diverse applications but the size of digital images places excessive demands on current storage and transmission technology. Image data compression is required to permit further use of digital image processing. Conventional image compression techniques based on statistical analysis have reached a saturation level so it is necessary to explore more radical methods. This thesis is concerned with novel methods, based on the use of fractals, for achieving significant compression of image data within reasonable processing time without introducing excessive distortion. Images are modelled as fractal data and this model is exploited directly by compression schemes. The validity of this is demonstrated by showing that the fractal complexity measure of fractal dimension is an excellent predictor of image compressibility. A method of fractal waveform coding is developed which has low computational demands and performs better than conventional waveform coding methods such as PCM and DPCM. Fractal techniques based on the use of space-filling curves are developed as a mechanism for hierarchical application of conventional techniques. Two particular applications are highlighted: the re-ordering of data during image scanning and the mapping of multi-dimensional data to one dimension. It is shown that there are many possible space-filling curves which may be used to scan images and that selection of an optimum curve leads to significantly improved data compression. The multi-dimensional mapping property of space-filling curves is used to speed up substantially the lookup process in vector quantisation. Iterated function systems are compared with vector quantisers and the computational complexity or iterated function system encoding is also reduced by using the efficient matching algcnithms identified for vector quantisers.