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Using problem-solving and effective teaching frameworks to create reflective practitioners

REA Auditado

As the number of teacher training programs that focus on developing reflective practitioners increase, a need exists to define the components of reflective practice, and how various techniques impact preservice teachers' reflective thoughts. In this study, an investigation was conducted of the impact of using training and reflective frameworks on the reflective patterns of preservice teachers. The reflective frameworks (a series of questions that allow for systematic reflection on teaching) and training focused on aspects of effective instruction and problem-solving.

Tema: general: 

• Ciencias Sociales›Educación›Temas especiales de Educación

Discrete Fourier restriction phenomenon associated with some periodic dispersive equations

REA Auditado

The thesis consists of six chapters. In Chapter 1, we will briefly introduce the background of the topic, as well as some results we already know. The next five chapters can be divided into two parts. The first part is about the discrete Fourier restriction phenomenon. In Chapter 2, we consider the discrete Fourier restriction phenomenon associated with Schrodinger equations. We study the size of the Fourier transform of a periodic function on a truncated discrete paraboloid.

Tema: general: 

• Ciencias›Matemáticas

Metadiscourse in oral discussions and persuasive essays of children exposed to collaborative reasoning

REA Auditado

Speakers and writers use metadiscourse to guide, caution, and implore their audiences. Written metadiscourse is a term for self-reflective expressions that help writers negotiate interactional meanings, assist in expressing viewpoints and engagement with readers (Hyland, 2005), or convey attitudes towards written text (Vande Kopple, 1985).

Tema: general: 

• Ciencias Sociales›Educación›Temas especiales de Educación

Effects of genetic selection and processing of soybeans and soybean meal on nutritional quality

REA Auditado

Five experiments were conducted to study the effects of genetic selection and processing of soybeans and soybean meal on nutritional quality when fed to pigs. The objectives of Exp. 1 and 2 were to determine standardized ileal digestibility (SID) of AA, and the DE and ME in de-hulled conventional full fat soybeans (FFSB-CV), high-protein full fat soybeans (FFSB-HP), and low-oligosaccharide full fat soybeans (FFSB-LO). Results indicate that the SID of most AA in FFSB-LO is similar to values in FFSB-CV, but greater (P < 0.05) than values in FFSB-HP.

Tema: general: 

• Ciencias›Zoología (incluyendo Medicina Veterinaria)

A composite material approach towards induction machine design using planar layer models

REA Auditado

The three-phase squirrel cage induction machine has seen evolutionary, not revolutionary, advancements since its conception over 100 years ago. At its most basic level, the design has remained very close to its roots. This thesis emphasizes electric machine synthesis through the development of system limitations based on material constraints.

Tema: general: 

• Ingeniería y Ciencias Aplicadas

Public and private investment in Brazil: Empirical evidence about complementarity

REA Auditado

In this dissertation, we examine the relationship between public and private investment in Brazil in the 1955-1993 period. The public sector has always been an important agent in the Brazilian economy. However, historical observation and empirical evidence indicate that the state has lost some of its dynamic properties in the last decade. Overall, our results corroborate the long-run complementarity hypothesis for the Brazilian economy in the period in question. The provision of infrastructure capital, however, has a stronger impact than non-infrastructure investment.

Tema: general: 

• Negocios y Economía›Economía

In vivo and in vitro disappearance of energy and nutrients in novel carbohydrates and cereal grains by pigs

REA Auditado

ABSTRACT: In vivo and in vitro experiments were conducted to determine digestibility of GE and nutrients, as well as DE and ME of carbohydrates fed to growing pigs. The objective of Exp. 1 was to determine the DE and ME of 4 novel carbohydrates fed to pigs. The 4 novel carbohydrates were 2 sources of resistant starch (RS 60 and RS 70), soluble corn fiber (SCF), and pullulan. These carbohydrates were produced to increase total dietary fiber (TDF) intake by humans. Maltodextrin (MD) was used as a highly digestible control carbohydrate.

Tema: general: 

• Ciencias›Zoología (incluyendo Medicina Veterinaria)

Propulsion performance of a microcavity discharge device

REA Auditado

This work explores the requirements for an effective nanosatellite propulsion system. A candidate system is proposed in the form of a microcavity discharge device modified for use as an electrothermal thruster, called a MCD thruster. Development of the MCD thruster was primarily experimental in nature, although computational modeling provided validation and suggested future development paths. Three types of tests were performed to validate the performance of the MCD thruster.

Tema: general: 

• Ingeniería y Ciencias Aplicadas›Ingeniería›Ingeniería Aeronáutica y Astronáutica

Essays on poverty reduction in Latin America

REA Auditado

In recent years, reducing poverty has been a core objective of social policy in Latin America. In
2008, the incidence of poverty reached almost a third of the population, of which 13 percent are
classified as extremely poor. Most Latin American countries have invested vast resources in
poverty reduction programs, particularly Conditional Cash Transfer schemes (CCTs), which
have become a critical element in social policy.
The effectiveness of CCTs has been a hotly debated topic.

Tema: general: 

• Negocios y Economía›Economía

Lipoic acid assembly on 2-oxoacid dehydrogenases in E.coli

REA Auditado

Lipoic acid is a covalently attached cofactor essential for the activity of 2-oxoacid dehydrogenases and the glycine cleavage system. In the absence of lipoic acid modification the dehydrogenases are inactive and aerobic metabolism is blocked. In Escherichia coli two pathways for the attachment of lipoic acid exist, a de novo biosynthetic pathway dependent on the activities of the LipB and LipA proteins and a lipoic acid scavenging pathway catalyzed by the LplA protein.

Tema: general: 

• Ciencias›Biología