Potomotyphlus, Potomotyphlus kaupii

Number of pages=23Geological SciencesIntegrative Biolog

Fearless Friday: Venissa Ledesma

This week we are celebrating the work of Venissa Ledesma ’19. Venissa is a sophomore at Gettysburg College from San Diego, California. She is an Environmental Studies major and a Peace and Justice Studies minor. Currently, Venissa is the president of the Latin American Student Association (LASA), a Program Coordinator for Immersion Projects at the Center for Public Service (CPS), a tour guide for prospective students, and a Day Host Ambassador for the Admissions office. [excerpt

Austrian Way of Life

While still in the midst of their study abroad experiences, students at Linfield College write reflective essays. Their essays address issues of cultural similarity and difference, compare lifestyles, mores, norms, and habits between their host countries and home, and examine changes in perceptions about their host countries and the United States. In this essay, Vanessa Zea-Ledesma describes her observations during her study abroad program at the Austro-American Institute of Education in Vienna, Austria

Multilingual investigation of theory-based intervention for program comprehension

This thesis is the continuation of an experiment called “Eye-movement Modeling Examples in Source Code Comprehension: A Classroom Study”. This first experiment studies how effective is showing novice programmers how experts read code with a video with the expert’s gaze guided by a verbal explanation. Therefore, this thesis studies, using a similar experiment, whether only verbal explanation and visual stimuli without the expert’s gaze could be also helpful for the programming novices.Grado en Ingeniería Informática de Servicios y Aplicacione

Non-linearities and unit roots in G7 macroeconomic variables

We carry out a meta-analysis on the frequency of unit-roots in macroeconomic time series with a dataset covering 249 variables for the G7 countries. We use linear tests and the three popular non-linear tests (TAR, ESTAR and Markov Switching). In general, the evidence in favour of the random walk hypothesis is weaker than in previous studies. This evidence against unit roots is stronger for real and nominal asset prices. Our results show that rejection of the null of a unit root in the macro dataset is substantially higher for non-linear than linear models. Finally, the results from a Monte Carlo experiment show that rejection frequencies are very close to the nominal size of the test when the DGP is a linear unit root process. This leads us to reject the hypothesis that overfitting deterministic components explains the higher rejection frequencies of nonlinear tests