California State University, Long Beach

About: California State University, Long Beach is a education organization based out in Long Beach, California, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 10036 authors who have published 13933 publications receiving 377394 citations. The organization is also known as: Cal State Long Beach & Long Beach State.

Teaching the Nature of Science through Inquiry to Prospective Elementary Teachers: A Tale of Two Researchers

Abstract: The teacher as researcher, Colburn, and the researcher, Bianchini, investigated Colburn's use of inquiry to teach the nature of science to prospective elementary teachers; we attempted to identify those aspects of the nature of science addressed through inquiry instruction and the varied contexts in which such insights arose. We began by videotaping small group inquiries and whole class deliberations during three units of Colburn's inquiry-oriented general science course. We then conducted separate qualitative analyses of the resulting 20 h of videotaped data. Colburn, the teacher and informant, adopted an emic perspective and employed examples of explicit and implicit deliberations and demonstrations of the nature of science to construct his case. Bianchini also used an emic perspective, but examined only what teacher and students explicitly identified as examples of and insights into the nature of science. Taken together, our analyses highlight the difficulties in presenting a cogent and comprehensive picture of the nature of science to students, the teacher's pivotal role in initiating discussions of what science is and how scientists work, and the strengths and limitations of using classroom-based research to investigate nature of science instruction. © 2000 John Wiley & Sons, Inc. J Res Sci Teach 37: 177–209, 2000

Photodynamic therapy of actinic keratoses with topical aminolevulinic acid hydrochloride and fluorescent blue light

Abstract: Background: Aminolevulinic acid hydrochloride (ALA, Levulan) applied topically to actinic keratoses (AKs) leads to accumulation of the photosensitizer protoporphyrin IX, which, when activated by exposure to light, eradicates AKs. Objective: We examined the safety and efficacy of photodynamic therapy using topical 20% ALA in a solution formulation and varying blue light doses to treat multiple AKs on the face and scalp. Method: This is a multicenter, investigator-blinded, randomized, vehicle-controlled study. Results: Thirty-six patients with clinically typical AKs were treated with 20% ALA; 14 to 18 hours later, they were irradiated with a nonlaser fluorescent blue light source. With the optimal light dose of 10 J/cm 2 , 88% of the AKs completely cleared 8 weeks after a single photodynamic treatment, compared with 6% after treatment with vehicle and light. Conclusion: Topical ALA PDT using a nonlaser, blue light source is an effective treatment for multiple AKs. (J Am Acad Dermatol 2001;45:96-104.)

Developing a STEM Identity Among Young Women: A Social Identity Perspective:

Abstract: We conducted a systematic review of empirical research focused on the experiences of female students in science, technology, engineering, and mathematics (STEM) during middle and high school. Drawing on social identity theory, recent research was synthesized to explore how aspects of the social environment influence STEM identity development. Findings indicate that young women experience challenges to their participation and inclusion when they are in STEM settings. Additionally, we found that perceptions regarding who is part of the ingroup or outgroup of STEM fields can be changed through intervention and educational programs. We conclude with recommendations for theory, research, programs, and policy for STEM identity development among young women, informed by a social identity perspective.

Increasing Latina/o Students' Baccalaureate Attainment: A Focus on Retention

Abstract: Notwithstanding years of retention efforts, graduation rates of Latinas/os remain alarmingly low. The purpose of this review is threefold. First, the authors go beyond traditional theory and highlight those scholars who shed new information on retention for Latina/o students. Second, they summarize factors that specifically affect Latina/o students. Third, promising practices for effectively retaining Latina/o students in higher education institutions are highlighted.