Over the course of a lifetime, one in eight women will develop breast cancer. To date, 30-40% of ... more Over the course of a lifetime, one in eight women will develop breast cancer. To date, 30-40% of breast cancer cases can be attributed to established risk factors, which supports the need for identification of additional modifiable risk factors. Therefore, we conducted three epidemiologic studies to examine the associations between nutritional, hormonal, and psychological risk factors and breast cancer risk. In our first study, we examined the relationship between urinary melatonin levels and the risk of breast cancer in a nested-case control study within the Nurses' Health Study II. While limited in some respects, experimental and epidemiologic evidence support the potential relationship between melatonin as a protective factor against breast cancer risk. In this updated analysis of our previously published results with longer follow-up time and a greater sample size, adding cases that occurred more distant from urine collection, we did not observe a significant association bet...
Follow this and additional works at: https://scholarworks.umass.edu/dissertations_2 Part of the B... more Follow this and additional works at: https://scholarworks.umass.edu/dissertations_2 Part of the Bilingual, Multilingual, and Multicultural Education Commons, Curriculum and Instruction Commons, Curriculum and Social Inquiry Commons, Gender and Sexuality Commons, Lesbian, Gay, Bisexual, and Transgender Studies Commons, Other Education Commons, Reading and Language Commons, and the Secondary Education and Teaching Commons
This study showcases classroom interactions that reveal the transformational potential of educati... more This study showcases classroom interactions that reveal the transformational potential of educational practices which disrupt traditional notions about teaching and learning. These disruptive practices create qualitatively different social relations within a classroom which open spaces for students to co-create knowledge in new and creative ways. Based on an ethnographic study, conducted in a foundational course for pre-service teachers, that explored the pedagogical practices of a teacher educator committed to a social justice-based critical pedagogy, analysis of classroom interactions revealed the following disruptive teaching practices: providing spaces for creative explorations, a focus on community building, and using secular mindfulness practices.
Follow this and additional works at: https://scholarworks.umass.edu/dissertations_2 Part of the B... more Follow this and additional works at: https://scholarworks.umass.edu/dissertations_2 Part of the Bilingual, Multilingual, and Multicultural Education Commons, Curriculum and Instruction Commons, Curriculum and Social Inquiry Commons, Gender and Sexuality Commons, Lesbian, Gay, Bisexual, and Transgender Studies Commons, Other Education Commons, Reading and Language Commons, and the Secondary Education and Teaching Commons
Over the course of a lifetime, one in eight women will develop breast cancer. To date, 30-40% of ... more Over the course of a lifetime, one in eight women will develop breast cancer. To date, 30-40% of breast cancer cases can be attributed to established risk factors, which supports the need for identification of additional modifiable risk factors. Therefore, we conducted three epidemiologic studies to examine the associations between nutritional, hormonal, and psychological risk factors and breast cancer risk. In our first study, we examined the relationship between urinary melatonin levels and the risk of breast cancer in a nested-case control study within the Nurses' Health Study II. While limited in some respects, experimental and epidemiologic evidence support the potential relationship between melatonin as a protective factor against breast cancer risk. In this updated analysis of our previously published results with longer follow-up time and a greater sample size, adding cases that occurred more distant from urine collection, we did not observe a significant association bet...
Follow this and additional works at: https://scholarworks.umass.edu/dissertations_2 Part of the B... more Follow this and additional works at: https://scholarworks.umass.edu/dissertations_2 Part of the Bilingual, Multilingual, and Multicultural Education Commons, Curriculum and Instruction Commons, Curriculum and Social Inquiry Commons, Gender and Sexuality Commons, Lesbian, Gay, Bisexual, and Transgender Studies Commons, Other Education Commons, Reading and Language Commons, and the Secondary Education and Teaching Commons
This study showcases classroom interactions that reveal the transformational potential of educati... more This study showcases classroom interactions that reveal the transformational potential of educational practices which disrupt traditional notions about teaching and learning. These disruptive practices create qualitatively different social relations within a classroom which open spaces for students to co-create knowledge in new and creative ways. Based on an ethnographic study, conducted in a foundational course for pre-service teachers, that explored the pedagogical practices of a teacher educator committed to a social justice-based critical pedagogy, analysis of classroom interactions revealed the following disruptive teaching practices: providing spaces for creative explorations, a focus on community building, and using secular mindfulness practices.
Follow this and additional works at: https://scholarworks.umass.edu/dissertations_2 Part of the B... more Follow this and additional works at: https://scholarworks.umass.edu/dissertations_2 Part of the Bilingual, Multilingual, and Multicultural Education Commons, Curriculum and Instruction Commons, Curriculum and Social Inquiry Commons, Gender and Sexuality Commons, Lesbian, Gay, Bisexual, and Transgender Studies Commons, Other Education Commons, Reading and Language Commons, and the Secondary Education and Teaching Commons
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Papers by Kirsten Helmer