The partial compactification of the universal centralizer

The universal centralizer of a semisimple algebraic group G is the family of centralizers of regular elements in Lie(G), parametrized by their conjugacy classes. It has a natural symplectic structure inherited via Hamiltonian reduction from the cotangent bundle T*G. We construct a smooth log-symplectic partial compactification of the universal centralizer where each fiber is compactified inside the wondeful compactification of G

DIGITAL: multidisciplinary and multidimensional in the classrooms

In this paper our aim is to analyse and present some pedagogical paths that prefigure and guide the teaching-learning devices developed "around" the digital tools. In this context issues related to the implementation with teaching methodologies and teaching techniques acquire a new dimension due to the need of transpose them into online learning environments (technologies to teach to technologies to learn). This starting point is a deep understanding from the analysis of actors in the online learning process: student, teacher, platform and e- contents. Thus, it is our goal in this chapter to promote digital education, think of teaching methods, tools and learning processes, to adapted to eLearninginfo:eu-repo/semantics/publishedVersio

Single cell electroporation on chip

In this thesis the results of the development of microfluidic cell trap devices for single cell electroporation are described, which are to be used for gene transfection. The performance of two types of Lab-on-a-Chip trapping devices was tested using beads and cells, whereas the functionality for single cell electroporation of these chips was verified by means of gene transfection studies

Life and works of Aristotle

Peer reviewe

Iced Out: How Immigration Enforcement Has Interfered with Workers’ Rights

[Excerpt] In recent years, however, our federal government’s approach to immigration enforcement has severely interfered with the protection of labor rights for immigrant workers. The single-minded focus on immigration enforcement without regard to violations of workplace laws has enabled employers with rampant labor and employment violations to profit by employing workers who are terrified to complain about substandard wages, unsafe conditions, and lack of benefits, or to demand their right to bargain collectively

Sexual Violence or Flattery?: Latin American Perceptions of Catcalls and Street Compliments

Stadtarchiv Troisdorf, Pressesammlung: Siegburger Kreisblatt vom 7. August 1918  Die tödliche Krankheit Ruhr muss weiter bekämpft werden. Dazu sind neue Maßnahmen erlassen worden.    -  Neue Maßnahmen zur Bekämpfung der Ruhr. Zur Bekämpfung der Ruhr hat der preußische Minister des Innern neue Maß- nahmen in einer Verfügung an die Regie- rungspräsidenten angeordnet. Sie sind durch wärmere Jahreszeit bedingt. Im vorigen Jahre wurde eine gemeinverständliche Beleh- rung darüber ausgearbeitet. Die..

Multimedia technologies and online task-based foreign language teaching-learning

Teaching and learning a foreign language at a distance implies many challenges, namely regarding oral skills. At Universidade Aberta (the Portuguese Open University), and taking into account its virtual pedagogical model (Pereira, 2007) and the Common European Framework of Reference for Languages (Alves, 2001), we suggest curricular paths which include online communicative practices, both oral and written, within the present pedagogical offer, following a student- centred, task-oriented approach. Thus, in this text, we share some examples of training activities in German, French and English, focusing on oral practice, and based on digital resources. These digital resources comprise multimedia materials, either produced by the teachers or the students, as well as other materials available on the web 2.0. Our teaching and research practice within the field of foreign languages and in e-learning, in particular, leads us to conclude that the multimedia resources used are suitable for the online teaching and learning of foreign languages (see third question of questionnaire), especially for professionally engaged adults, as is the case with Universidade Aberta’s students, providing them with real-life situations that foster the teaching-learning of languages in the virtual environment. We include responses to a questionnaire survey filled out by a group of students.info:eu-repo/semantics/publishedVersio