MHD Remote Numerical Simulations: Evolution of Coronal Mass Ejections

Coronal mass ejections (CMEs) are solar eruptions into interplanetary space of as much as a few billion tons of plasma, with embedded magnetic fields from the Sun's corona. These perturbations play a very important role in solar--terrestrial relations, in particular in the spaceweather. In this work we present some preliminary results of the software development at the Universidad Nacional Autonoma de Mexico to perform Remote MHD Numerical Simulations. This is done to study the evolution of the CMEs in the interplanetary medium through a Web-based interface and the results are store into a database. The new astrophysical computational tool is called the Mexican Virtual Solar Observatory (MVSO) and is aimed to create theoretical models that may be helpful in the interpretation of observational solar data.Comment: 2 pages, 1 color figure. To appear in Proceedings IAU Symposium No. 259. Cosmic Magnetic Fields: From Planets, to Stars and Galaxies. In pres

The quantum chiral Minkowski and conformal superspaces

We give a quantum deformation of the chiral super Minkowski space in four dimensions as the big cell inside a quantum super Grassmannian. The quantization is performed in such way that the actions of the Poincar\'e and conformal quantum supergroups on the quantum Minkowski and quantum conformal superspaces are presented.Comment: 54 page

Quadratic deformation of Minkowski space

We present a deformation of the Minkowski space as embedded into the conformal space (in the formalism of twistors) based in the quantum versions of the corresponding kinematic groups. We compute explicitly the star product, whose Poisson bracket is quadratic. We show that the star product although defined on the polynomials can be extended differentiably. Finally we compute the Eucliden and Minkowskian real forms of the deformation.Comment: Presented at XVII European Workshop on String Theory 2011. Padova (Italy) September 05-09; Fortschr. Phys. 1-7 (2012

Alcoholism Research Project of Mexican Americans in Scottsbluff, Nebraska

The principle focus of this report is to assess the availability and utilization of established alcoholism services for Mexican Americans in the Scottsbluff area. Though important, the concern here is not with the absolute supply of services (for example, the number of quarter way and halfway houses in Scottsbluff County), nor is it with spatial distribution of services (for example, the location of the detoxification center in Scottsbluff County) . Rather, this analysis focuses on the utilization of existing services and the extent of the need for services by Mexican Americans in the Scottsbluff area

Navigating Challenges and Teaching Through Lived Experiences as Graduate Student Instructors

Historically, graduate students across academic disciplines have been expected to teach courses in their field, at the college level, without sufficient guidance. This is known as a stressful and difficult experience, but for some graduate students this can be compounded by their positionality, both in the hierarchy in academia as well as their individual minoritized statuses (racial, sexual, gender, or otherwise.) Brought about by our own experiences and struggles, this paper addresses two primary questions: (1) How do our identities impact our experiences as graduate student instructors? And (2) How do we use lived experiences as sociologists and instructors to create a better learning experience for our students? We answer these questions and end the discussion with a call to action, highlighting anti-racism and disrupting the status quo of academia. The call to action is especially pertinent considering the current social and political tensions laid bare by the COVID-19 pandemic and the continuous fight for racial justice and equity

Isotropization of Bianchi type models and a new FRW solution in Brans-Dicke theory

Using scaled variables we are able to integrate an equation valid for isotropic and anisotropic Bianchi type I, V, IX models in Brans-Dicke (BD) theory. We analyze known and new solutions for these models in relation with the possibility that anisotropic models asymptotically isotropize, and/or possess inflationary properties. In particular, a new solution of curve ($k\neq0$) Friedmann-Robertson-Walker (FRW) cosmologies in Brans-Dicke theory is analyzed.Comment: 15 pages, 4 postscript figures, to appear in Gen. Rel. Grav., special issue dedicated in honour of Prof. H. Dehne

Cosmological simulations using a static scalar-tensor theory

We present $\Lambda$CDM $N$-body cosmological simulations in the framework of a static general scalar-tensor theory of gravity. Due to the influence of the non-minimally coupled scalar field, the gravitational potential is modified by a Yukawa type term, yielding a new structure formation dynamics. We present some preliminary results and, in particular, we compute the density and velocity profiles of the most massive group.Comment: 4 pages, 6 figures, to appear in Journal of Physics: Conference Series: VII Mexican School on Gravitation and Mathematical Physics. 26 November to 1 December 2006, Playa del Carmen, Quintana Roo, Mexic