Sublattice Asymmetric Reductions of Spin Values on Stacked Triangular Lattice Antiferromagnet CsCoBr3_3

We study the reductions of spin values of the ground state on a stacked triangular antiferromagnet using the spin-wave approach. We find that the spin reductions have sublattice asymmetry due to the cancellation of the molecular field. The sublattice asymmetry qualitatively analyzes the NMR results of CsCoBr$_3$.Comment: 5pages, 5figure

Violência doméstica e familiar contra a mulher

- Texto de autoria de Ministro aposentado do Superior Tribunal de Justiça.Comenta que a violência doméstica contra a mulher extravasa os limites nacionais e é objeto de preocupação mundial. Declara que as questões envolvendo marido e mulher, caracterizadas por violência física, psicológica e de natureza sexual contra a mulher, frequentemente foram e ainda são rotuladas como assuntos que devem ser tratados e resolvidos na intimidade entre os personagens envolvidos, não se admitindo interferência de terceiros. Aborda a Lei 11.340, de 07.08.2006, que é a resultante não só de regular processo legislativo, expressando a vontade popular, mas, sem dúvida, é o resultado da força e eficácia de convenções internacionais, ratificadas pelo Brasil. Esta lei foi gerada pelo inconformismo e pela dor, física e moral, de uma vítima de violência doméstica que buscava a aplicação da lei e sua efetiva execução, sendo batizada como "Lei Maria da Penha". Ressalta que a lei 11.340, de 07.08.2006, tem o escopo de criar mecanismos para coibir a violência doméstica e familiar contra a mulher, nos termos do § 8º do art. 226 da Constituição Federal, da Convenção sobre a Eliminação de Todas as Formas de Discriminação contra as Mulheres e da Convenção Interamericana para Prevenir, Punir e Erradicar a Violência contra a Mulher

Transferring and Constructing Knowledge: Designing an STC

This article describes the design and benefits of a Science and Technology Center (STC)- based workshop sponsored by the National Science Foundation (NSF). The topic in this case was hydrologic literacy in teaching issues and concepts concerning semi-arid hydrology in the Southwest, as defined by educators and scientists associated with Sustainability of semi-Arid Hydrology and Riparian Areas (SAHRA). Participants concluded that a science workshop designed to explicitly combine science content and inquiry-based pedagogy is beneficial, but learning new content is not a guarantee that it will be used in the participants' science curricula. To increase chances for teachers to alter practice, workshops must model new pedagogy while teaching new content, and instructors must be very explicit about how new teaching techniques were used to teach new content. Educational levels: Graduate or professional

Challenging the Challengers: How Partisan Citizen Observers Contribute to Disenfranchisement and Undermine Election Integrity

Almost every state allows political parties to sponsor and train private citizens to serve as election observers and sometimes even to challenge the eligibility of other private citizens to vote. These partisan citizen observers, referred to in this Note as “PCOs,” have far too often perpetuated the racism, disenfranchisement, and discrimination that already plague our democratic processes. While election observers can play a valuable role in preserving and maintaining the integrity of our elections at all levels, existing regulations do not effectively guard against discriminatory or intimidating PCO behavior. This Note analyzes the social and legal harms that may result from improper and illegal PCO activity and offers solutions to the PCO regime that maintain the benefits of citizen oversight of elections while minimizing the potential for intimidation, discrimination, and voter suppression

Slow Seeing

Slow Seeing is an exhibition of paintings, prints, collages and a video work that together reflect the procedural occurrences of a form of slow seeing. A proposition in discovering the iterative potentials of a process made knowable through the direct engagement and manipulation of materials and different modes of making. As an exhibition, Slow Seeing is a translation of an idea and a work from one medium to another, as an exploration and consideration of process, material and perception. Slow Seeing is an experience offered to the viewer in deciphering the imprinted, residual relationships between the works in the exhibition. Requests to move, pause, relook and ruminate are hoped to be imbued upon the viewer as an embodiment of slow seeing. Slow Seeing is a description of a methodological mode of working, through thinking and discovering the latent potentials in thoughts already thought, materials and experiences alike

Surface Instabilities on Liquid Oxygen in an Inhomogeneous Magnetic Field

Liquid oxygen exhibits surface instabilities when subjected to a sufficiently strong magnetic field. A vertically oriented magnetic field gradient both increases the magnetic field value at which the pattern forms and shrinks the length scale of the surface patterning. We show that these effects of the field gradient may be described in terms of an ``effective gravity'', which in our experiments may be varied from 1g to 360g.Comment: 4 pages, 5 embedded figures in eps forma

Back-arc opening and the mode of subduction

Trench-arc systems (subduction zones) can be classified into two types depending on whether or not actively opening back-arc basins are associated with them. This suggests that subduction of an oceanic plate is not a sufficient condition for back-arc opening, though it may be necessary one. Mechanisms that cause the distinction between the two types have been investigated. Earthquake studies suggest that there is a significant difference in the mode of plate motion at interplate boundaries between the two types of trench-arc systems. Extreme cases are Chile, where plate motion is seismic, and the Marianas arc, where it is aseismic. This difference seems to indicate that the stress state in the back-arc area differs between the two types: compression in the Chilean type and tension in the Marianas type. This difference in the stress state is also manifested in other tectonic features, such as topography, gravity, volcanic activity, and crustal movement. Two possible mechanisms for the difference between the two types are suggested: (1) The nature of the contact zone between upper and lower plates changes from tight coupling (Chile) to decoupling (the Marianas) through the evolutionary process of subduction. The decoupling results in an oceanward retreat of the trench and back-arc opening. (2) The downgoing slab is anchored to the mantle, so that the position of a trench is also fixed with respect to the mantle. Since the motion in the mantle is slow compared to that of surface plates, it is the motion of the landward plate which controls the opening and nonopening of back-arcs