Functional near infrared spectroscopy study of language, joint attention and motor skills

Near infrared spectroscopy (NIRS) is an emerging non-invasive optical neuro imaging technique that monitors the hemodynamic response to brain activation with ms-scale temporal resolution and sub-cm spatial resolution. The overall goal of my dissertation was to develop and apply NIRS towards investigation of neurological response to language, joint attention and planning and execution of motor skills in healthy adults. Language studies were performed to investigate the hemodynamic response, synchrony and dominance feature of the frontal and fronto-temporal cortex of healthy adults in response to language reception and expression. The mathematical model developed based on granger causality explicated the directional flow of information during the processing of language stimuli by the fronto-temporal cortex. Joint attention and planning/ execution of motor skill studies were performed to investigate the hemodynamic response, synchrony and dominance feature of the frontal cortex of healthy adults and in children (5-8 years old) with autism (for joint attention studies) and individuals with cerebral palsy (for planning/execution of motor skills studies). The joint attention studies on healthy adults showed differences in activation as well as intensity and phase dependent connectivity in the frontal cortex during joint attention in comparison to rest. The joint attention studies on typically developing children showed differences in frontal cortical activation in comparison to that in children with autism. The planning and execution of motor skills studies on healthy adults and individuals with cerebral palsy (CP) showed difference in the frontal cortical dominance, that is, bilateral and ipsilateral dominance, respectively. The planning and execution of motor skills studies also demonstrated the plastic and learning behavior of brain wherein correlation was found between the relative change in total hemoglobin in the frontal cortex and the kinematics of the activity performed by the participants. Thus, during my dissertation the NIRS neuroimaging technique was successfully implemented to investigate the neurological response of language, joint attention and planning and execution of motor skills in healthy adults as well as preliminarily on children with autism and individuals with cerebral palsy. These NIRS studies have long-term potential for the design of early stage interventions in children with autism and customized rehabilitation in individuals with cerebral palsy.

What are the effects of the 6 +1 Writing Traits on the Attitudes and Writing Skills of Fifth Grade ELLs?

In the Bahamas, ELLs consist mainly of Haitian descent students. Unfortunately, this demographic of students continuously score below their Bahamian counterparts in Creative Writing. This research examined the affects the 6 + 1 Writing Traits assessment had on the attitudes and writing abilities of fifteen, fifth grade, Haitian descent students.

Islam and Arabs in Cuba: A Historical and Contemporary Overview

This flyer promotes the event "Islam and Arabs in Cuba: A Historical and Contemporary Overview", a lecture by Daniel F. Rivera, Research Fellow, Florida International University. Dr. Rivera holds a PhD in Arabic and Islamic Studies from Universidad Autonoma de Madrid, and has focused his research on Arab modern history and the presence of Islam in Latin America. The event was held on November 12, 2015 at FIU Modesto A. Maidique Campus CP 145.

Funtional Near Infrared Spectroscopy Study of Language, Joint Attention and Motor Skills

Near infrared spectroscopy (NIRS) is an emerging non-invasive optical neuro imaging technique that monitors the hemodynamic response to brain activation with ms-scale temporal resolution and sub-cm spatial resolution. The overall goal of my dissertation was to develop and apply NIRS towards investigation of neurological response to language, joint attention and planning and execution of motor skills in healthy adults. Language studies were performed to investigate the hemodynamic response, synchrony and dominance feature of the frontal and fronto-temporal cortex of healthy adults in response to language reception and expression. The mathematical model developed based on granger causality explicated the directional flow of information during the processing of language stimuli by the fronto-temporal cortex. Joint attention and planning/ execution of motor skill studies were performed to investigate the hemodynamic response, synchrony and dominance feature of the frontal cortex of healthy adults and in children (5-8 years old) with autism (for joint attention studies) and individuals with cerebral palsy (for planning/execution of motor skills studies). The joint attention studies on healthy adults showed differences in activation as well as intensity and phase dependent connectivity in the frontal cortex during joint attention in comparison to rest. The joint attention studies on typically developing children showed differences in frontal cortical activation in comparison to that in children with autism. The planning and execution of motor skills studies on healthy adults and individuals with cerebral palsy (CP) showed difference in the frontal cortical dominance, that is, bilateral and ipsilateral dominance, respectively. The planning and execution of motor skills studies also demonstrated the plastic and learning behavior of brain wherein correlation was found between the relative change in total hemoglobin in the frontal cortex and the kinematics of the activity performed by the participants. Thus, during my dissertation the NIRS neuroimaging technique was successfully implemented to investigate the neurological response of language, joint attention and planning and execution of motor skills in healthy adults as well as preliminarily on children with autism and individuals with cerebral palsy. These NIRS studies have long-term potential for the design of early stage interventions in children with autism and customized rehabilitation in individuals with cerebral palsy.

Foreign-born CEOs, Country-Specific Skills, Selection, and Strategic Consequences

In this dissertation, I first suggest an extension of the managerial rents model and more specifically the managerial skills typology that it offers. Building on research in international business, I propose adding country-specific skills (CSS) to this typology in addition to firm-specific, industry-specific, and generic skills. I define CSS as managers’ abilities that are applicable and specific to a particular national institutional context. Such skills are distinct from the other three types identified and are likely to influence managers’ performance and the performance of their firms. So if CSS are distinct skills, what are the implications for strategy and international business research? In an attempt to respond to this question, I conduct two empirical essays in which I examine the implications of this refinement of the typology of managerial skills for CEO selection and firms’ mergers and acquisitions (M&A) strategy. In the first empirical essay, I puzzle at the fact that although CSS constitute a barrier to high-level executive mobility across countries, there have been a growing number of foreign-born CEOs being appointed across the globe. Why are these individuals being selected for the post of CEO? Using information on the appointment of foreign-born and national CEOs from 2005 to 2010 among global 500 companies, I show that internationalization pressures help explain their selection and that two types of firms are likely to appoint foreign leaders: highly internationalized firms and firms that are likely to internationalize. In the second empirical essay, I examine the strategic implications of country-specific skills. Employing the same sample as the one used in the first empirical essay, I demonstrate that given that their mindset is likely to be less focused on firms’ home market, foreign-born CEOs may be prone to institute more changes in firms’ cross-border M&A strategy than their domestic counterparts. I also theorize on the moderating influence of CEOs’ insiderness.

An investigation of the relationship between historical reform initiatives and Blueprint 2000: A System of School Improvement and Accountability

The modern rhetoric of reform in education has been in the forefront since the 1980s, but it has now taken on a new meaning, a greater importance to both students and teachers, a new urgency for change, and a sense of hope that this time reform will truly make a difference. The major purpose of this study was to compare historical reform initiatives to the current Florida state initiative, Blueprint 2000: A System of School Improvement and Accountability.^ Five questions were considered: (1) how similar were historical and current reform initiatives; (2) what aspects of reform were actually accomplished; (3) what are the elements of a profession; (4) what implications might this research have for university programs and inservice training programs regarding their role in the preparation of teachers; and, (5) what implications might research have on the promotion of professional practice. ^

Re -"interpreting" the conquest: European and Amerindian translators and go -betweens in the colonization of the Americas, 1492--1675

This dissertation aims to recover the lives and careers of those Amerindians and Europeans who voluntarily or involuntarily took on the role of intercultural interpreters in the contact, conquest, and early colonial period in the Americas between 1492 and 1675. It intends to prove that these so-called “marginal” figures assumed roles that went far beyond those of linguistic and cultural translators, and often had a decisive impact on early Indian-colonial relations. ^ In the course of my research, I consulted hundreds of published sixteenth- and seventeenth-century chronicles, narratives, and memoirs in my search for references to interpreters. I augmented these accounts with information derived from unpublished archival documents, drawn primarily from the Archivo General de Indias, in Seville, Spain. ^ I organized my findings in theme-driven chapters that begin with a consideration of the historiography of that subject. Each chapter is further subdivided into chronologically-arranged historical vignettes that focus on the interpreters who mediated between the Spanish, Portuguese, French, English and Dutch and the various Native American polities and cultures. ^ I found that colonial authorities and Amerindian communities alike recognized the absolute necessity of recruiting competent and loyal interpreters and go-betweens, and that both sides tried to secure their loyal service by means both fair and foul. Although pressured, pushed, and pulled in contrary directions, most interpreters recognized the pivotal position they held in cross-cultural negotiations and rarely remained passive pawns in the contests between the forces of domination and defense. ^ All across the Americas, interpreters used their linguistic and diplomatic skills, and their intimate knowledge of the “other” not simply to facilitate conquest or spearhead the opposition, but to transform themselves from “culture brokers” into “power brokers.” Many of the decisive events that shaped colonial-Indian relations turned on the actions of these culturally-ambiguous individuals, a fact bemoaned and begrudgingly acknowledged by most of the contemporary conquistadors, chroniclers, and colonial founders, and recognized by this author. ^

An investigation of parents' and children's beliefs of early literacy acquisition from a cross -cultural perspective

It has been reported that the cultural-historical experiences of ethnic group members can play a role in the literacy beliefs of those members. Socioeconomic conditions can also influence the belief system of the groups' constituents. This study investigated parents' and children's beliefs pertaining to early literacy acquisition as related to the ethnicity and socioeconomic status (SES) of the participants. The objectives were to determine (a) the differential patterns regarding emergent literacy and traditional skills approaches as they interact with ethnicity and SES and (b) the correspondence between parents and children's beliefs about literacy acquisition. ^ The study was conducted with 152 parents (38 low-income Hispanic, 38 middle-income Hispanic, 38 low-income African-American, and 38 middle-income African-American) and 36 of their 3-, 4-, or 5-year-old children (18 male and 18 female). ^ The parents were asked to check those items with which they agreed on a survey that consisted of an equal number of items from the traditional skills-based and emergent literacy orientations. These responses were used to determine the differences and interaction by ethnicity and SES. The children responded to open-ended questions related to the instruction of reading and writing skills. The parents' responses and children's answers were compared to ascertain the matching parent-child dyads by ethnicity and SES. ^ An item analysis was conducted to strengthen the internal reliability consistency coefficient of the traditional skills-based and emergent literacy scales as measured by the Cronbach Alpha. ^ A two-way multivariate analysis of variance (MANOVA) revealed a significant difference in traditional skill-based beliefs for the low-income African-American and Hispanic parents. There were no significant findings for the parents' traditional skill based or emergent literacy beliefs based on ethnicity, for the interaction between ethnicity and SES, or for the relationship between parents' and children's literacy beliefs by ethnicity and SES. ^ It can be concluded that low-income African-American and Hispanic parents believe in the traditional skills approach, indicating that these parents find it necessary for children to have sufficient school readiness skills prior to learning to read or write. In addition, the parent and child dyads had a strong tendency toward emergent literacy beliefs. ^

Foreign-born CEOs, country-specific skills, selection, and strategic consequences

In this dissertation, I first suggest an extension of the managerial rents model and more specifically the managerial skills typology that it offers. Building on research in international business, I propose adding country-specific skills (CSS) to this typology in addition to firm-specific, industry-specific, and generic skills. I define CSS as managers' abilities that are applicable and specific to a particular national institutional context. Such skills are distinct from the other three types identified and are likely to influence managers' performance and the performance of their firms. So if CSS are distinct skills, what are the implications for strategy and international business research? In an attempt to respond to this question, I conduct two empirical essays in which I examine the implications of this refinement of the typology of managerial skills for CEO selection and firms' mergers and acquisitions (M&A;) strategy. In the first empirical essay, I puzzle at the fact that although CSS constitute a barrier to high-level executive mobility across countries, there have been a growing number of foreign-born CEOs being appointed across the globe. Why are these individuals being selected for the post of CEO? Using information on the appointment of foreign-born and national CEOs from 2005 to 2010 among global 500 companies, I show that internationalization pressures help explain their selection and that two types of firms are likely to appoint foreign leaders: highly internationalized firms and firms that are likely to internationalize. In the second empirical essay, I examine the strategic implications of country-specific skills. Employing the same sample as the one used in the first empirical essay, I demonstrate that given that their mindset is likely to be less focused on firms' home market, foreign-born CEOs may be prone to institute more changes in firms' cross-border M&A; strategy than their domestic counterparts. I also theorize on the moderating influence of CEOs' insiderness.