An investigation of principals' and teachers' perceptions related to the effectiveness of a school-based problem solving model (Illinois)

De La Torre, Elida N Loyola University Chicago 2005 해외박사(DDOD)

소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

This dissertation research project was designed to study how a sample of teachers and principals perceived a School-Based Problem Solving (SBPS) model that was implemented in the Chicago Public Schools. Comparisons were made among the participants at schools in which the SBPS model had been implemented and in schools in which the SBPS model had not been implemented. Data collected from principals and teachers included a survey and an archival data set. Four constructs were targeted for systematic study. The first construct was the School-Based Problem Solving climate which included three descriptors (supportive environment, restrictive environment, and collegial environment). The second construct was the School-Based Problem Solving Perception which included five descriptors (services/intervention, score improvements, and changes and barriers across school-types among teachers and principals). The third construct was communication which included descriptors related to clarity, timeliness, helpfulness, and openness/receptivity among staff members who were involved with the School-Based Problem Solving models. The fourth construct was used to define the perceived competencies displayed by the special education teachers and regular education teachers. These competencies included problem solving strategies, ability to analyze behaviors and environments, communication abilities, and abilities to design instructional environments that accommodate the special needs of diverse learners. Archival data was gathered to see if the referral rate for case study evaluations diminished due to the implementation of the School-Based Problem Solving Model across a seven year time period in which the SBPS model had been implemented. Four research questions were addressed. There are no differences in the teacher's survey scores across school types (SBPS and non-SBPS). There are no differences in the administrative survey scores across school types (SBPS and non-SBPS). There are no differences in the administrative survey scores across time periods (96-02). There are no differences in the number of referrals across time periods (96-02). An analysis of the results indicated that principals were receptive to the model. Those principals who had been exposed to the model for seven years were very receptive. They perceived the model as being successful. However, the teachers who had not been exposed to the model were less positive. Many of the teachers reported that the use of the model required too much time and extra work. Many of the teachers and some of the principals stated that the model was just another fad that would have a short shelf life. It should be noted that the special education referral rates dropped after seven years of implementation of the model.

Operational Models in Humanitarian and Non-Profit Logistics

de la Torre, Luis Northwestern University 2015 해외박사(DDOD)

소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

This dissertation studies operations research models motivated by applications in non-profit and humanitarian logistics; motivating applications include disaster relief aid distribution and non-disaster food aid. The first part of the dissertation is a review of models in vehicle routing for disaster relief, along with insights into future work from discussions with logistics practitioners. The second part presents a stochastic programming model for coordination of disaster relief agencies. The third part presents a location and vehicle routing model for improving recycling operations for non-disaster food aid. In the survey of disaster relief vehicle routing models, we find potential areas for future work. Practitioners stated that relief activities immediately after a disaster would be challenging to model due to uncertainty in information and rapidly changing conditions. They identified high levels of ambiguity and frequent changes in availability of delivery vehicles, supplies, and location and quantity of need. Practitioners emphasized that every disaster is unique, as are every relief organization's practices. Models providing guidelines and insights for practitioners should be flexible, general, and able to give conclusions with limited data. Next, we develop a two-stage stochastic programming model motivated by disaster relief aid with uncertainty. This model groups relief organizations, assigning them to deliver goods to aid recipients with uncertainty in whether recipients can be safely reached. The model is a variant of the generalized assignment problem. We discuss potential solution methods, focusing on variants of Benders' Decomposition-type methods. Finally, we study a problem motivated by a network of hunger relief agencies. The network identified cardboard recycling as a costly expense, given the quantity of donations. Aggregating recycling across the network may be a cost-saving venture. This leads to a variant of the periodic location routing problem with additional dimensions of choice. Choices involve the set of open depots, the capacity of open depots, and the visit frequency. We highlight the challenges introduced by each dimension of operational choice, examining the relative difficulty introduced with each dimension through a heuristic, which can incorporate additional relaxations of model constraints. We present a case study based on data from the network and develop collaboration guidelines.

Addressing the Education Debt: How Community College Educators Utilize Culturally Relevant Pedagogy to Support Black and Latinx Student Success

De La Torre Roman, Yessica M ProQuest Dissertations & Theses University of Sout 2022 해외박사(DDOD)

소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

Despite the growing research on practices that support student success, available data demonstrate a continued education debt for Black and Latinx students. Culturally relevant pedagogy (CRP) is a practice that can increase the academic success of students of color. This study explored how Black and Latinx students experience CRP. The study was conducted at a community college and collected information from both faculty and students to determine if students’ experiences align with the practices utilized by faculty. The study was guided by CRP, critical race theory, and critical pedagogy. This study found that CRP is used and experienced more frequently through practices that do not center race.

An alternative capstone project: Closing the achievement gap for Hispanic English Language Learners using the gap analysis model

De La Torre-Rubalcava, Maurita University of Southern California 2011 해외박사(DDOD)

소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

The purpose of this alternative capstone project was to conduct a gap analysis for the pervasive underperformance of Hispanic English Language Learner (EL) students in Rowland Unified School District (RUSD). This alternative capstone project developed from a partnership between the Rossier School of Education at the University of Southern California and RUSD. This qualitative inquiry project looked at educational practices utilized in elementary and middle school levels of instruction throughout the district and how these aligned to district initiatives for narrowing the gap. We gathered data through interviews, observations and surveys. We used the Clark & Estes (2002) gap analysis to identify performance gaps, model as our analytical framework to develop perceived root causes, and then formulate solutions to present to the District Superintendent and her executive board. The process of change, district support, and cultural proficiency all contributed to the existing Hispanic EL achievement gap in RUSD.

Nobody There: Acousmatics and An Alternative Economy of Meaning in Latin American Poetry of the 1970s

de la Torre, Monica Columbia University 2013 해외박사(DDOD)

소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

This study focuses on the works of three authors whose first poetry books appeared in the 1970s, in the context of the dictatorial and authoritarian regimes that began seizing power in Latin America in the 1960s and '70s. At a juncture in which both traditional leftist discourse and the programs of earlier avant-gardes had begun to seem inadequate, younger poets sought to articulate, in the realm of the symbolic, coherent responses to increasingly oppressive and polarized political environments. The works in question are the following: Brazilian Waly Salomão's <italic>Me segura qu'eu vou dar um troço</italic> (Rio de Janeiro, 1972); Juan Luis Martínez's <italic> La nueva novela</italic> (Santiago, Chile, 1977); and, by Mexican conceptual artist Ulises Carrión, the unpublished <italic>Poesías,</italic> from 1973, as well as a selection of his poetry-based artists books. These are hyper-referential, process-oriented, polyphonic works. They are not only politically motivated, but, given their understanding of the entwinement of politics and genre, are also decidedly against the ideology bolstering the lettered tradition, lyrical poetry, and self-expressive tendencies. At the core of their critique is a rejection of an economy of meaning in which the author's function, as Foucault puts it, equals "the principle of thrift in the proliferation of meaning." First and foremost, in their goal to burst open the meaning-making process, Salomão, Martínez, and Carrión disembody the utterance and question notions of literary value that set apart literary language from common speech. Relying heavily on appropriation and framing devices, they each posit an alternate model of authorship in which writing and reading are inextricable and, consequently, the work is co-created by the reader. Key among their strategies is that of acousmatics—here understood as the concealment of the source of the utterances in the text—in order to, primarily, create conditions of reception in which the reader can interact with the material on the page directly, without its being mediated by the poem's subject. Salomão, Martínez, and Carrión each achieve the uttering subject's removal from the text through different procedures that are contrasted in the dissertation. Emulating the cacophony of popular culture, Salomão performatively adopts multiple subjectivities in his works, saturating them to the point that no unitary subject can be said to be manifest in them. Martínez, on the other hand, mirrors the cacophony of printed matter. Besides failing to attribute the copious materials he samples in the wide-ranging word/image works comprising <italic>La nueva novela,</italic> in presenting them he adopts the depersonalized institutional tone of textbooks, photographic captions, and paratextual materials such as footnotes, editor's notes, and bibliographical annotations. In Carrión's works the subject seems to have vacated the poem entirely, as author function is reduced to misreading canonical materials and performing interventions and erasures on them. Resulting from Carrión's operations are open structures that serve as models for post-literary ways to engage with texts. The way these authors assembled and put their books in circulation is also examined, since <italic>Me segura qu'eu vou dar um troço, La nueva novela,</italic> and Carrión's artist books are the result of a thorough rethinking of the politics of the book, the lettered tradition's keystone institution.

Influence of physical urban characteristics on crime activity : case of Quito, Ecuador

DE LA TORRE HURTADO, Wladimir Giovanni 서울시립대학교 국제도시과학대학원 2020 국내석사

The increase of crime activity in Quito over the last years remains as a concern to citizens and authorities, which address crime issues with a traditional punitive and controlling approach without applying appropriate strategies on crime prevention. As crime increase, so it does the perception of insecurity of the people along with their distrust on the authorities. Hence, it becomes necessary to explore different options to deal with crime and delinquency. Environmental crime theories consider crime as opportunistic, and crime will keep happening as long as the urban physical environment allows it. On that matter, the physical characteristics of a given urban setting in the public space may play a role as crime enablers. This research explores how crime in public space distributes temporally and spatially along the city, and how different physical characteristics, activities, and social conditions of the urban environment in Quito, derived from its urban development and planning, correlate with this crime activity. Additionally, this study investigates how the urban characteristics influence on the perception of safety and fear of crime among the citizens. Urban characteristics are analyzed as urban factors through specific measurable indicators, that allows to infer which factors or characteristics may have a role as crime predictors, so the authority could consider them for analysis and their improvement as a strategy to prevent crime to happen and reduce fear of crime. Keywords Crime activity, fear of crime, physical characteristics, urban factors, public space. 지난 몇 년 간 키토(Quito)에서 발생한 범죄 활동의 증가는 시민과 관할 당국의 우려가 되고 있는데 반해, 당국은 범죄 예방을 위한 적절한 전략을 적용하지 않고 처벌 및 통제 위주의 전통적인 접근 방식으로 범죄 문제를 해결하고 있는 실정이다. 범죄가 증가함에 따라 시민들의 불안감과 관할 당국에 대한 불신도 커지고 있다. 따라서 범죄 및 범법 행위에 대처하는 다양한 방안을 강구할 필요성이 대두되고 있다. 범죄의 환경적 요인 이론에서는 범죄를 기회주의적인 것으로 간주하며, 도시의 물리적 환경이 허용하는 한 범죄가 계속 발생할 것이라고 본다. 그와 같은 관점에서 주어진 도시 환경(공공 장소)의 물리적 특성이 범죄의 유발 요인이 될 수 있다. 본 연구에서는 공공 장소에서의 범죄가 도시에서 시공간적으로 어떻게 분포되어 있는지, 키토의 도시 개발 및 계획에서 유래된 도시 환경의 물리적 특성, 활동 및 사회적 여건이 이러한 범죄 활동과 어떤 상관 관계를 가지는지 조사하였다. 이에 더해 도시의 특성이 시민들의 안전에 대한 인식과 범죄에 대한 두려움에 어떻게 영향을 미치는지 살펴보았다. 측정 가능한 세부 지표를 통해 어떤 인자 혹은 특성이 범죄 예측 변수로서의 역할을 할 수 있는지 추론하여 도시 특성을 도시 인자로서 분석하였다. 관할 당국은 범죄를 예방하고 범죄에 대한 시민들의 공포감을 완화하기 위한 전략으로서 이를 검토할 수 있을 것이다. 핵심어 범죄 활동, 범죄 공포, 물리적 특성, 도시 인자, 공공 장소

Studying Online Public Debate on Freedom of the Press in South Korea : Natural Language Processing of Tweets

?ngela de la Torre Paradelo 서강대학교 일반대학원 2023 국내석사

The present study experimentally sets out to investigate, through analysis of public online discourse with Natural Language Processing techniques, press freedom since Yoon Suk-yeol took office in May 2022 as President of the Republic of Korea. By performing topic modeling with LDA, keyword extraction with TF-IDF and clustering with K-means to a dataset of posts scraped from social media Twitter, we found that there is the public perception that press freedom seems to have started deteriorating in the short period of time Yoon has been President. The conflict seems to be related around the antagonistic relationship between President Yoon and the public broadcaster Munwha Broadcasting Corporation (MBC). Among the findings, we detected that the existing anti-press discourse persists in a notably polarized online environment.

Post-combustion electrochemical capture and release of CO2 and deformation and bulk stress evolution in LiMn2O4 intercalation compounds

Castro De la Torre, Helme Atic Arizona State University 2016 해외박사(DDOD)

소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

This investigation is divided into two portions linked together by the momentous reaches of electrochemistry science, principles influencing everyday phenomena as well as innovative research in the field of energy transformation. The first portion explores the strategies for flue gas carbon dioxide capture and release using electrochemical means. The main focus is in the role thiolates play as reversible strong nucleophiles with the ability to capture CO2 and form thiocarbonates. Carbon dioxide in this form is transported and separated from thiocarbonate through electrochemical oxidation to complete the release portion of this catch-and-release approach. Two testing design systems play a fundamental role in achieving an efficient CO2 catch and release process and were purposely build and adapted for this work. A maximum faradaic efficiency of seventeen percent was attained in the first membrane tests whose analysis is presented in this work. An efficiency close to thirty percent was attained with the membrane cell in recent experiments but have not been included in this manuscript. The second portion of this manuscript studies bulk stress evolution resulting from insertion/extraction of lithium in/from a lithium manganese oxide spinel cathode structure. A cantilever-based testing system uses a sophisticated, high resolution capacitive technique capable of measuring beam deflections of the cathode in the subnanometer scale. Tensile stresses of up to 1.2 MPa are reported during delithiation along with compressive stresses of 1.0 MPa during lithiation. An analysis of irreversible charge loss is attributed to surface passivation phenomena with its associated stresses of formation following patterns of tensile stress evolution.

Studying online public debate on freedom of the press in South Korea : Natural language processing of tweets : 한국 언론의 자유에 대한 온라인 공개 토론 연구: 트윗의 자연어 처리

Paradelo, Angela de la Torre 서강대학교 대학원 2023 국내석사

Governance, Reciprocity, Redistribution and Food Security among Tseltales in Los Altos

Pacheco, Sindy Yaneth De La Torre Arizona State University 2015 해외박사(DDOD)

소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

In Latin America food insecurity is still prevailing in those regions where extreme poverty and political instability are common. Tseltal communities are experiencing changes due to religious conversions and the incursion of external political institutions. These changes have diminished the importance of traditional reciprocal and redistributive institutions that historically have been essential for personal and community survival. This dissertation investigated the impact that variations on governance systems and presence of reciprocal and distributional exchanges have on the food security status of communities. Qualitative data collected in four communities through 117 free lists and 117 semi-structured interviews was used to elaborate six scales that correspond to the traditional and civic authority system and to inter-community and intra-community reciprocity and redistribution. I explore the relationship that the scores of four communities on those scales have on the food security status of their inhabitants based on their results on the National Health and Nutrition Survey 2012. Findings from this study suggest that in marginalized communities that many scientists would described as experiencing market failure, participation in inter-community reciprocal, intra-community reciprocal and intra-community redistribution are better predictors of food security than enrollment in food security programs. Additionally, communities that participated the most in these non-market mechanisms have stronger traditional institutions. In contrast, communities that participated more in inter-community redistribution scored higher on the civic authority scale, are enrolled in more food aid programs, but are less food secure.