The maltreatment of children is unarguably an important social concern, the negative effects of which have been well-documented in the literature over the past two decades. Research on the etiology of maltreatment, however, has yielded few strong conclusions regarding the characteristics of abusive parents. There is much disagreement with respect to the personality or psychological attributes of those parents who maltreat their children (Belsky, 1993), and the question of how those characteristics are differentially associated with the subtypes of abuse has not been adequately addressed. Furthermore, although the extant literature has consistently agreed that maltreatment contributes to poor psychological outcomes for adolescents it is less clear how these outcomes differ depending upon the type and severity of maltreatment (Trickett & McBride-Chang, 1995). The current study sought to identify those personality attributes that are both predictors and effects of abuse. Scales of the Minnesota Multiphasic Personality Inventory- 2nd edition (MMPI-2) were examined to determine personality variables associated with perpetration of each of four major classifications of abuse. Further, scales from the MMPI-Adolescent version (MMPI-A) were utilized to determine those personality variables in adolescents that may be affected by each of those four categories. This study hypothesized that clear patterns would emerge in which certain personality variables are predictive of the type of abuse that parents engage in, and each type of abuse is predictive of the manifestation of certain personality characteristics in adolescents. The effects of gender were also analyzed. Structural Equation Modeling was used to analyze the MMPI-2 and MMPI-A data and abuse histories of 100 pairs of offending parents and maltreated adolescents. Results indicated significant direct effects of parent personality on abuse subtype, abuse subtype on adolescent personality, parent personality on adolescent personality, and one significant mediation effect of parent personality on adolescent personality through abuse subtype. Additionally, gender was found to significantly affect the engagement in and experience of abuse, and one significant interaction of gender and abuse subtype on adolescent personality was discovered. Results are of practical importance in designing abuse intervention and prevention programs and inform the current understanding of the intergenerational transmission of abuse. / text

Nowadays, subsalt oil and gas exploration is drawing more and more attention from the hydrocarbon industry. Hydrocarbon exploitation requires detailed geological information beneath the surface. Seismic imaging is a powerful tool employed by the hydrocarbon industry to provide subsurface characterization and monitoring information. Traditional wave-equation migration algorithms are based on the one- way-in-depth propagation using the scalar wave equation. These algorithms focus on downward continuing the upcoming waves. However, it is still really difficult for conventional seismic imaging methods, which have dip limitations, to get a correct image for the edge and shape of the salt body and the corresponding subsalt structure. The dip limitation problem in seismic imaging can be solved completely by switching to Reverse-Time Migration (RTM). Unlike old methods, which deal with the one-way wave equation, RTM propagator is two-way and, as a result, it no longer imposes dip limitations on the image. It can also handle complex waveforms, including prismatic waves. Therefore it is a powerful tool for subsalt imaging. RTM involves wave extrapolation forward and backward in time. In order to accurately and efficiently extrapolate the wavefield in heterogeneous media, I develop three novel methods for seismic wave modeling in both isotropic and tilted transversely isotropic (TTI) media. These methods overcome the space-wavenumber mixed-domain problem when solving the acoustic two-way wave equation. The first method involves cascading a Fourier Transform operator and a finite difference (FD) operator to form a chain operator: Fourier Finite Differences (FFD). The second method is lowrank finite differences (LFD), whose FD schemes are derived from the lowrank approximation of the mixed-domain operator and are represented using adapted coefficients. The third method is lowrank Fourier finite differences (LFFD), which use LFD to improve the accuracy of TTI FFD mothod. The first method, FFD, may have an advantage in efficiency, because it uses only one pair of multidimensional forward and inverse FFTs (fast Fourier transforms) per time step. The second method, LFD, as an accurate FD method, is free of FFTs and in return more suitable for massively parallel computing. It can also be applied to the FFD method to reduce the dispersion in TTI case, which results in the third method, LFFD. LFD and LFFD are based on lowrank approx- imation which is a general method to handle mixed-domain operators and can be easily applied to more complicated mixed-domain operators. I show pseudo-acoustic modeling in orthorhombic media by lowrank approximation as an example. / text

This thesis reports a cross-cultural study that investigated the ways Chinese and Swedish college students do gender in their experiences of reading English as a second language. The concept “doing gender in reading” in this study derives from the view of reading as a social practice that leads to gendered identities construction. Previous studies, which mostly found that girls outperformed boys in reading achievement, created a linear relationship between gender and achievement. This study, informed by social theories of literacy (Gee, 2008; Street, 1984; Kress, 2010) and poststructuralist theories of gender (Weedon, 1997; Butler, 1990), explored how socially-constituted gendered ideologies might be instantiated and negotiated in college students’ experiences of reading English as a second language. It gave particular attention to diversity within and between genders and to the dynamics of students’ socio-culturally mediated reading practices. The study was guided by the following sub-questions: (a) What gender-specific ideologies can be identified in Chinese and Swedish college students’ narratives of reading English as a second language? (b) How do Chinese and Swedish college students act in relation to gender-specific ideologies in their everyday English reading practices? The study was conducted with a qualitative approach of narrative inquiry. Focal informants were four Chinese students and four Swedish students enrolled in English teacher education programs in their home countries. Data were collected over a sixmonth period with techniques of student journal writing, interviews, focus groups, and ethnographic observations. Baxter’s (2003) feminist poststructuralist discourse analysis framed and guided data analysis. The study found three recurrent English reading practices across cases that led to gendered identities construction. These were: making investment in English reading; adopting the strategy of reading English alone; and choosing English reading materials in relation to teachers. Overarching ideologies that shaped these practices included perceptions of reading as a more female-appropriate activity, male readers as independent readers who could solve problems on their own, and female readers as emotional readers who are sensitive to their relation with others. Informants’ actions in relation to these gender-specific ideologies fell into two major categories: conformance and resistance. Findings suggested that female informants seemed to be more ready to resist these ideologies whereas males tended to comply. Swedish informants seemed to demonstrate more awareness of and readiness to resist gendered ideologies compared to Chinese informants. The findings from this study imply that gendered ideologies can have both facilitating and debilitating effects on students’ reading experiences. Therefore, language teachers should develop a critical consciousness of gendered ideologies and how they relate to their students in specific contexts. In response to prevailing socioculturally constituted and power-laden ideologies, the study proposes a new perspective from which to interpret gender and reading English as a second language across cultures. Such a contribution adds momentum to the paradigm shift from essentialism to poststructuralism in second language acquisition that purports that gender is more than an identity label. / published_or_final_version / Education / Doctoral / Doctor of Philosophy

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published_or_final_version / Education / Master / Master of Education

published_or_final_version / abstract / toc / Civil Engineering / Master / Master of Philosophy

Do men and women write differently and if so, do these stylistic differences represent differing world \iews and/or do they indicate divergent decisions that are made by the gendered individual with respect to the positioning inherent in the interactive communicative process? In this thesis I consider how men and women write and interact, as well as the topics of their conversations, by examining the postings that characterize a specific semiotic Internet site: Anthro- L@ubvm.cc.buffalo.edu. Created solely by and through language, a net community is the ideal environment in which to conduct a field study which examines the use of gendered language. In cyber 'public' space, where social interaction in largely stripped of bodily cues, net participants rely on the power of discourse to convey the 'self. I shall show that men and women make different choices as to how they will represent themselves in net public space, and that these choices are conveyed through the preference of specific styles of writing. Although conceptualizations of public space, academic praxis, and individual socialization all contribute to stylistic differentials, I illustrate through my methodology that Gender is the master status that primarily informs communicative decisions. 'Legitimate' language in our culture is constructed on the rational paradigm which characterizes public institutions; this paradigm is the fundamental principle which informs our system of [male] Langue. Posting acts on Anthro-L offer evidence that those who do not 'speak', or choose not to speak within the framework of this model, are conceived as 'other1, and are silenced through desertion, by - play and trivialization. / 29 cm.

Introduction Heart rate variability (HRV) is regarded as a useful, non-invasive method for investigating the autonomic nervous system (ANS). Over the past decade there has been an increase in the number of HRV investigations in the disciplines of medical, sport and exercise science. Despite the extensive use of HRV in investigations of ANS functioning, there are questions relating to the reliability of the technique. Therefore, HRV reliability studies for different population groups have been advocated. Furthermore, research on gender differences in HRV is contradictory. This has resulted in the need to investigate gender characteristics in HRV. Objectives The objective of this study was to evaluate the reliability of short-term (5min) recordings of HRV, and to determine the association between HRV and gender. Methods Forty four physically active students (n= 21, age= 21.17 (1.55) males and n=23, age= 19.75 (1.76) females) participated in the study. Heart rate variability parameters were determined from five minute recording of interbeat intervals (IBI) using a Suunto t6 heart rate monitor (HRM). Testing was repeated over 4 consecutive days under the same conditions. The following HRV time and frequency domain measures were calculated using Kubios HRV Software Version 2.0: mean heart rate (HR), standard deviation of normal to normal intervals (SDNN), root mean square of successive differences (RMSSD), percentage of beats that changed more than 50 ms from the previous beat (pNN50), low frequency in normalized units (LFnu), high frequency in normalized units (HFnu) and low frequency to high frequency ratio in normalized units (LF/HFnu ratio). The data was summarized using routine descriptive statistics. Relative reliability was calculated using interclass correlation coefficients (ICC) (ICC of >0.80 indicated good to excellent reliability) and absolute reliability using typical error of measurement (TEM) and TEM as a percentage of the mean score (TEM%). This statistical measures were computed for days 2 vs 3 (REL 1), 3 vs 4 (REL 2). Day 1 was used as a familiarization day. An unpaired T-test was used to determine whether there were any differences between males and females for the above HRV parameters. Significance was set at p .0.05. Results The ICCs for both REL 1 and REL 2 indicated good to excellent (ICC >0.8) reliability for IBIs and pNN50 for the time domain results. In general, the time domain results had a higher relative reliability than the frequency domain results. Males had an overall lower relative reliability than females for frequency domain parameters. Absolute reliability for REL 2 showed a slightly lower TEM value as compared to REL 1.The largest gender differences in TEM were seen in the frequency domain parameters. Specifically, for males, the TEM was higher than females for the LF/HFnu ratio (REL 2: 116%), the HFnu (REL 1: 90%) and the LFnu (REL 1: 68%). Overall the TEM% was relatively high in most HRV parameters specifically for LF/HFnu (REL 1: 31.4% females and 48.1% males; REL 2: 29.7% females and 40.4% males). These findings indicate that males have decreased absolute reliability compared to females and that random error is greater in men for the frequency domain parameters. Gender differences illustrated significant differences for resting HR (16% higher in females (p < 0.0001)), IBIs (21% higher in females (p <0.0001)) and LF/HFnu ratio (41% higher in males (p = 0.003)). The findings indicate that females have higher total HRV. Conclusions Short term recordings of HRV over consecutive days using the Suunto t6 HRM and Kubios custom HRV software are reliable depending on the HRV parameter being analysed. Overall, the relative reliability results suggest that HRV using the Suunto t6 and Kubios is good. However, the absolute reliability results suggest low reliability. In particular, males demonstrated a poorer absolute reliability (high TEM and TEM%) than females, suggesting a larger day to day random error in males. Furthermore, specific HRV measures differed between males and females demonstrating that females have higher parasympathetic modulation compared to men. The overall higher HRV in females could explain the possible cardio-protective mechanism observed in premenopausal women. Key words: Heart rate variability, Parasympathetic, Reliability, Interbeat Intervals / Thesis (M.Sc.)-University of KwaZulu-Natal, Westville, 2011.

The growth of computer-mediated communication (CMC) has generated great interest among researchers. Although perspectives vary, the anonymity inherent in textual communication and the reduction of social markers are often described as the characteristics that distinguish CMC from other forms of communication. These arguments have resulted in unprecedented optimism regarding the potential of this technology to eliminate social inequalities and increase access to institutional power. While critics have provided substantial evidence to the contrary, especially in regards to gender inequalities, CMC continues to be promoted and accepted. / Critical responses on the issue of gender have concentrated on behavioral issues. As exemplified by the work of Herring, these issues include, among others, the use of adversarial rhetorical strategies, topical control, representation in electronic communities, and the phenomenon known as "flaming". / Surprisingly, no effort has been made to address the role of gender in the cognitive aspects of CMC or directly question the claims advanced by supporters of this technology in relation to the anonymity of electronic texts. With the exception of Herring's peripheral remarks on this issue and limited work on the problem of gender judgements by Savicki and his colleagues, research is non-existent. / Given the importance of this area for the information professions, this research explores the role of gender in the cognitive processes associated with identification and impression formation. More specifically, this research addresses two concerns. The first is whether CMC users can identify the gender of those they have never met face-to-face by relying exclusively on the detection of gender cues. The second centers on the role of gender in the evaluation of electronic communicators. / Against the perspectives outlined in the feminist critique of technology, this research's theoretical framework is derived from the work of Hymes as well as literature from cognate fields. Thus, Hymes' theoretical model on the concept of communicative competence, which allows competent speakers to pass judgement on the appropriateness of linguistic events, is central to the investigation. / The results provide convincing evidence regarding the implications of gender in the cognitive dimension of CMC. Data from 133 research participants (91 females and 42 males) associated with the study of librarianship or its professional practice suggest that CMC simply recreates existing gender asymmetries. Women are less likely to remain anonymous, more likely to be described stereotypically, and more likely to be evaluated negatively.