1,704 research outputs found

    The flux and source of energetic protons in Saturn's inner magnetosphere

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    The flux of energetic protons in Saturn's inner magnetosphere was observed in two channels from 48 to 63 and 63 to 160 MeV. Absorption features due to the G ring and the satellites Enceladus and Mimas were easily identifiable. The flux observed in the absorption slot of Mimas can be maintained by the decay of a cosmic ray albedo neutron flux of 0.007/sq cm/s/sr. This flux is entirely consistent with calculations of the neutron flux produced by galactic cosmic ray interactions with the rings of Saturn. The omnidirectional proton flux of 0.0082/sq cm/s at 2.734 R sub s requires a residence time of 30 years. Both the residence time and the energy spectrum are comparable to those found in the inner radiation belt of the Earth. The angular distribution is nearly isotropic in the Mimas slot and beyond 4R sub s. Otherwise the pitch angle distribution is pancake and is approximated by sin(n)theta with n in the range 2 to 7. This distribution is consistent with an isotropic neutron source in the ring plane

    Coal Fires: An Environmental Disaster

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    Coal Fires are part of an environmental disaster

    Geographic Transgression and Epic Theatre: The Subversiveness of the Pastoral Idyll in Edward Bond’s Lear

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    The pastoral has often been defined in terms of an idyllic retreat where man can regain his former unity with nature, from which he has been alienated as a consequence of urban life. At the same time, however, the pastoral is not merely escapist, but explores the very problems of the city, contemporary society, politics and the human condition in general. It can thus be called a subversive form, serving as a vehicle to question contemporary values, roles and morals by offering a context where these issues can be freely scrutinised and criticised. A similar interest in contemporary affairs underlies the concept of the epic theatre, which, by definition, intends to create an awareness of existing social plights in the audience, thus aspiring to political reforms. This article analyses the overlap between pastoral elements and the notion of the epic theatre using Edward Bond’s Lear (1971). Not only will it be demonstrated how Bond uses the king’s retreat into a pastoral idyll to convey his views about the origins of extreme behaviours like cruelty and violence in modern societies but also to what extent this attempt at a redefinition of received standards fits the notion of the epic theatre. Contrary to the opinion expressed by some scholars that the pastoral has become obsolete in modern times, this paper hence argues that this mode is a broad and flexible category that has survived up to the dramatic tradition of the twentieth century and is, due to its oscillation between evasiveness and subversiveness, capable of being incorporated in such a “radical” concept as Brecht’s theatre.Udostępnienie publikacji Wydawnictwa Uniwersytetu Łódzkiego finansowane w ramach projektu „Doskonałość naukowa kluczem do doskonałości kształcenia”. Projekt realizowany jest ze środków Europejskiego Funduszu Społecznego w ramach Programu Operacyjnego Wiedza Edukacja Rozwój; nr umowy: POWER.03.05.00-00-Z092/17-00

    The Effects of Parental Involvement on Family Functioning of Children in Counseling

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    Families with higher parental involvement indicate higher family functioning and child achievement. The STAR (Services to At-Risk Youth) program is designed to serve families identified as being at risk for child abuse and neglect. STAR services are intended to provide individual as well as family therapy for identified families. This study was designed to analyze the parent involvement in these services as compared to family functioning and child success. The study used closed STAR files to determine if children who had received services met their goals and if there was any increase in family functioning based on the pretests and posttests

    The Importance of Teaching Young Children Academics Through Multi-Sensory Activities

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    In this project, one will find information regarding the benefits of multi-sensory learning. Multi-sensory learning is a hands-on form of learning. One will find information on how technology is causing children to spend less time learning through their senses. The project is accompanied by information for parents and what they can do to promote multi-sensory learning at home. Along with this information, parents will find a guidebook that incorporates academic concepts with multi-sensory lessons. The project is organized so that one can find information on technology, importance of multi-sensory learning, proof, and guidebook contents. The project is easily laid out to provide readers with the information needed to understand the importances of the guidebook

    Acceleration of protons at 32 Jovian radii in the outer magnetosphere of jupiter

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    During the inbound pass of Pioneer 10, a rapid ten-fold increase of the 0.2 to MeV proton flux was observed at 32 Jovian radii (R sub J). The total event lasted for 30 minutes and was made up of a number of superimposed individual events. At the time, the spacecraft was in the outer magnetosphere about 7 R sub J below the magnetic equator. Before and after the event, the proton flux was characteristic of the low flux level normally encountered between crossings of the magnetic equator. Flux changes at different energies were coherent within 1 minute; a time comparable to the time resolution of the data. The angular distributions were highly anisotropic with protons streaming towards Jupiter. A field-aligned dumbbell distribution was observed initially, and a pancake distribution just before the flux decayed to its pre-event value. The alpha particle flux changed as rapidly as the proton flux but peaked at different times. The energetic electron flux behaved differently; it increased gradually throughout the period

    Energetic protons in the Jovian magnetosphere

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    The time histories, angular distributions and energy spectra of energetic protons were measured over an energy range extending from 0.2 - 20 MeV for the four passes of Pioneers 10 and 11 through the Jovian magnetosphere. Azimuthal asymmetries appear to dominate with time variations also contributing to the very complex topology. On the inbound P-10 pass the expected corotation anisotropy was not observed in the outer magnetosphere supporting the probable existence of a planetary wind in this region. Near the dawn meredian particle streaming away from the planet begins at about 15 RJ. On both the P-10 inbound and P-11 outbound passes, there are regions where only partial corotation is achieved. In the mid-magnetosphere, field-aligned streaming away from the near-equatorial current sheet region is the most prominent feature. At mid-latitudes in the subsolar regime, the streaming pattern is more chaotic and its magnitude is smaller. Qualitative discussions are presented for a number of possible mechanisms which could produce this streaming

    Energetic particles in the pre-dawn magnetotail of Jupiter

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    A detailed account is given of the energetic electron and proton populations as observed with Voyagers 1 and 2 during their passes through the dawn magnetotail of Jupiter. The region between 20 and 150 R sub J is dominated by a thin plasma sheet, where trapped energetic electron and proton fluxes reach their maximum. Proton spectra can be represented by an exponential in rigidity with a characteristic energy of approximately 50 keV. Proton anisotropies were consistent with corotation even at 100 R sub J. A major proton acceleration event as well as several cases of field aligned proton streaming were observed. The flux of 0.4 MeV protons decreases by three orders of magnitude between 30 and 90 R sub J and then remains relatively constant to the magnetopause. Fine structure in the data indicate longitudinal asymmetries with respect to the dipole orientation. Electron spectra in the magnetosheath and interplanetary space are modulated by the Jovian longitude relative to the subsolar point

    The magnetosphere of Saturn

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    Information about the magnetosphere of Saturn is provided: the magnetic dipole moment is axisymmetric, the bow shock stand-off distance is about 22 R sub S. The satellites Titan, Dione, and Tethys are probably the primary sources of magnetospheric plasma. Outside of approx. 4 R sub S, energetic particles are energized by diffusing inward while conserving their first and second adiabatic invariants. Particles are lost by satellite sweep-out, absorption byt the E ring and probably also by plasma interactions. The inner magnetosphere is characterized
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