Investigation of the Relationship between Sexual Orientation and Objective Height, along with Predictors of Height Distortion

Studies that have used mostly self-reported height have found that men with a same-sex orientation and women with an other-sex orientation are shorter, on average, than men with an other-sex orientation and women with a same-sex orientation, respectively. This thesis examined whether an objective height difference exists or whether a psychosocial account (e.g., distortion of self-reports) may explain these putative height differences. Also, this thesis examined whether certain individual differences (e.g, gender roles and socially desirable responding) predict height distortion. Eight hundred and thirteen participants, recruited at Brock University, the Niagara Community and through surrounding LGBT events, completed self-reported height, measures of gender roles and socially desirable responding, and had their height measured. Using hierarchical linear regressions, it was found that Same-Sex/Both-Sex Oriented men were shorter, on average, than predominantly Other-Sex Oriented men; however, there was no difference in objective height between Same-Sex/Both-Sex Oriented women and predominantly Other-Sex Oriented women. These findings contribute to existing biological theories of men's sexual orientation development and do not contribute to biological theories of women's sexual orientation development. Height distortion was not related to sexual orientation and only marginally related to sex. Predictors of height distortion were Impression Management, in both men and women, and Unmitigated Agency, in men. These findings highlight the complexity of sexual orientation development in men and women. These findings also highlight the role of certain psychosocial factors in how people perceive their bodies and/or how they want their bodies to be perceived by others.

Predicting Physical, Verbal, Social, Racial, and Sexual Bullying with Individual and Environmental Factors from an Evolutionary Ecological Framework

Evidence exists for subtypes of bullying, but there is a lack of studies simultaneously investigating the factors that influence each subtype. The purpose of my thesis was to investigate how individual and environmental factors independently and interactively predict physical, verbal, social, racial, and sexual bullying using an evolutionary ecological framework. Adolescents (N = 225, M = 14.05, SD = 1.54) completed self-reports on demographics, HEXACO personality, Rothbart’s temperament, parenting, friendship quality, school connectedness, and socio-economic status. Subtypes were predicted by low Honesty-Humility in addition to other personality and demographic factors with the exception of physical bullying, which was predicted by environmental factors. Results suggest adolescents adaptively and selectively use bullying to exploit victims and obtain resources, although the subtype used may depend on individual factors bullies possess within Bronfenbrenner’s microsystem, instead of the meso- and exo- systems. Anti-bullying efforts should target these factors and reinforce alternative strategies to obtain resources.

Feeding and oviposition preferences of the diamondback moth Plutella xylostella (Lepidoptera: Plutellidae) on six Brassicaceae host plant species

Plutella xylostella (diamondback moth, DBM) is a globally distributed Lepidopteran that feeds and oviposits almost exclusively on plants in the Brassicaceae family. DBM disperses from the southern United States and Mexico into Canada in the spring and summer. Establishment of DBM in Ontario is partially dependent upon the quantity and quality of host plants available and the preference of DBM for different hosts. Host plants include many crops such as broccoli, canola and cabbage, as well as landscape ornamentals and wild plants. It has previously been established that DBM are attracted to host plants by chemicals, specifically glucosinolates. I examined the preference of DBM among crop, wild and ornamental host plant species and how preference varies with insect life stage (3rd and 4th instar larvae and adults). Experiments included exposing DBM larvae from five populations coming from different locations in Canada to six Brassicaceae species and evaluating the preferences and weight gain over one hour. Then adult females were exposed to these same plant species and their oviposition preferences were examined. Populations from Alberta, Saskatchewan and Ontario were compared to assess differences in preference associated with geographic region or species of host plant. The ultimate goal of my study was to understand the potential of various Brassicaceae species to act as reservoirs to sustain and promote population growth of DBM, as well as sinks that may decrease DBM abundance. Results showed that garden cress (Lepidium sativum) was highly preferred over other species (wintercress, black mustard, aubretia, broccoli and ornamental kale) for both food and oviposition sources. Previous studies report that garden cress contains saponins, chemicals shown to be toxic to developing DBM larvae, however no studies have yet shown a preference for garden cress. These results provide information on a novel host plant with the potential to control DBM population growth. No difference in preferences was found among populations of DBM from various sources in Canada.

Algunos determinantes psico-sociales que explican la actitud hacia la detección oportuna de cáncer cervico uterino : estudio de campo realizado en mujeres mayores de 15 años con vida sexual en la ciudadde Apodaca, N. L.

Tesis (Maestría en Enfermería con Especialidad en Salud Comunitaria) UANL

Conducta sexual y SIDA : (riesgo de transmisión sexual al VIH-SIDA, en población heterosexual.) :

Tesis (Maestría en Trabajo Social) UANL.

Estudio de la trompa uterina de la rata Mus norvegicus albinus durante el ciclo sexual y la gestación

Tesis (Maestría en Ciencias) UANL

Modelo de creencias de salud y enfermedades de transmisión sexual en adolescentes y adultos jóvenes

Tesis (Maestría en Enfermería con Especialidad en Salud Comunitaria) UANL

Apoyo social y conducta sexual del adolescente

Tesis (Maestría en Ciencias de Enfermería con Énfasis en Salud Comunitaria) UANL

Factores que influyen en la decisión de inicio de vida sexual en adolescentes

Tesis (Maestría en Ciencias de Enfermería con Enfasis en Salud Comunitaria) UANL

Apoyo de padres y conducta sexual preventiva para VIH

Tesis (Maestría en Ciencias de Enfermería con Enfasis en Salud Comunitaria) UANL

Relación entre los hábitos de higiene sexual y las infecciones cervico-vaginales en una comunidad de Ciudad Guadalupe, N. L.

Tesis (Maestría en Salud Pública con Especialidad en Enfermería Comunitaria) U.A.N.L., 1995.

Influencia de algunos factores sobre la proporción sexual secundaria de los nacimientos (1977-1985) en el estado de Nuevo León, México por Roberto Mercado Hernández

Tesis (Maestría en Ciencias, especialidad en Genética) U.A.N.L.

Estudios sobre cría, comportamiento sexual y tablas de vida de Anopheles pseudopunctipennis Theobald y Anopheles punctipennis (Say) (Díptera: culicidae) bajo condiciones de laboratorio por Mario Alberto Rodríguez Pérez

Tesis (Maestro en Ciencias con Especialidad en Entomología Médica) UANL

Dimorfismo sexual durante el desarrollo del pulmón fetal del ratón albino : estudio morfológico y bioquímico (por) Rosa Patricia Penilla Navarro

Tesis (Maestría en Ciencias, con especialidad en Morfología)U.A.N.L.

Relación entre los hábitos de higiene sexual y las infecciones cervico-vaginales en una comunidad de Ciudad Guadalupe, N.L.

Tesis (Maestría en Salud Pública con Especialidad en Enfermería Comunitaria) U.A.N.L. Facultad de Salud Pública, 1995.