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1.
Patterns (N Y) ; 5(3): 100934, 2024 Mar 08.
Artículo en Inglés | MEDLINE | ID: mdl-38487809

RESUMEN

For science to be socially transformative it must be anti-deficit, meaning it must oppose efforts aimed at correcting perceived deficiencies in individuals. Instead, asset-based approaches are needed that recognize and value cultural strengths instead of framing them as deficits to be masked. Such approaches foster inclusive and innovative research that better yields equitable solutions for populations burdened by structural racism.

2.
PLoS One ; 19(2): e0294307, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38412191

RESUMEN

OBJECTIVE: The unprecedented events of 2020 required a pivot in scientific training to better prepare the biomedical research workforce to address global pandemics, structural racism, and social inequities that devastate human health individually and erode it collectively. Furthermore, this pivot had to be accomplished in the virtual environment given the nation-wide lockdown. METHODS: These needs and context led to leveraging of the San Francisco Building Infrastructure Leading to Diversity (SF BUILD) theories of change to innovate a Virtual BUILD Research Collaboratory (VBRC). The purpose of VBRC was to train Black, Indigenous, and people of color (BIPOC) students to apply their unique perspectives to biomedical research. These training activities were evaluated using a pre-post survey design that included both validated and new psychosocial scales. A new scale was piloted to measure culturally relevant pedagogy. RESULTS: VBRC scholars increased science identity on two items: thinking of myself as a scientist (+1point, p = 0.006) and belonging to a community of scientists (+1point, p = 0.069). Overall, scholars perceived stress also decreased over VBRC (-2.35 points, p = 0.02). Post VBRC, scholars had high agency scores (µ = 11.02, Md = 12, range = 6-12, σ = 1.62) and cultural humility scores (µ = 22.11, Md = 23, range = 12-24, σ = 2.71). No notable race/ethnic differences were found in any measures. CONCLUSIONS: Taken together, our innovative approach to data science training for BIPOC in unprecedented times shows promise for better preparing the workforce critically needed to address the fundamental gaps in knowledge at the intersection of public health, structural racism, and biomedical sciences.


Asunto(s)
Investigación Biomédica , Racismo , Humanos , Racismo/prevención & control , Ciencia de los Datos , Recursos Humanos , Investigación Biomédica/educación , Estudiantes
3.
Artículo en Inglés | MEDLINE | ID: mdl-37278955

RESUMEN

Latinx represent the second largest ethnic group in the USA and remain significantly underrepresented in research studies. Efforts to better include Latinx make use of community-engaged research (CEnR) approaches, peer-navigators, and cultural humility training for research teams. While these efforts have led to slight increases in Latinx participation, studies to identify strategic practices for better inclusion of Latinx participants are needed. The objective of this study was to qualitatively examine factors leading to successful recruitment and retention of Latinx participants in the Promoting Activity and Stress Reduction in the Outdoors (PASITO) intervention. For this intervention, 99 low-income Latinx clients in a local community were contacted and 52 participants were recruited (53%). All were retained in the 3-month intervention. Of these, 12 were interviewed within 6 months of the close of PASITO by bi-cultural and bi-lingual non-research staff. They conducted one-on-one structured telephone interviews. Of the twelve participants, three (25%) were men, nine (75%) were women, and the mean age was 43.7 (SD = 8.7). Four critical themes for the recruitment and retention of Latinx populations emerged from the interviews: (1) importance of insider researchers; (2) sense of community and belonging; (3) responsive programming; and (4) health-promoting activities. These findings support the significant role insider researchers can play, and social identity theory provides a useful framework for understanding the role of insider researchers in recruiting and retaining Latinx, and likely other minoritized groups, in clinical studies. Insider researchers possess the skills, training, community cultural wealth, in-depth understanding of their communities, and structural competencies that position them to carry out more inclusive studies to address the needs of marginalized communities and advance science.

4.
PLoS One ; 18(5): e0285602, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37186580

RESUMEN

Persons Excluded due to Ethnicity and Race (PEERs) remain underrepresented in university faculties, particularly in science, technology, engineering, math and medicine (STEMM) fields, despite increasing representation among students, and mounting evidence supporting the importance of PEER faculty in positively impacting both scientific and educational outcomes. In fact, the ratio of PEER faculty to students has been steadily dropping since 2000. In our case study, we examine the factors that explain creation of an unusually diverse faculty within a biology department. We analyzed nearly 40 years of hiring data in the study department and show that this department (the study department), historically and currently, maintains a significantly higher proportion of PEERs on faculty as compared to two national datasets. Additionally, we identify factors that contributed to hiring of PEERs into tenure and tenure-track positions. We observed a significant increase in the hiring of PEERs concurrent with the implementation of a co-hiring policy (p = 0.04) which allowed a single search to make two hires when at least one candidate was a PEER. In contrast, three key informants at sister departments reported that co-hiring policies did not result in PEER hires, but instead different practices were effective. In line with one of these practices, we observe a possible association between search committees with at least one PEER member and PEER hiring (p = 0.055). Further, the presence of particular faculty members (Agents of Change) on search committees is associated with PEER hiring. In this case study the combination of a co-hire policy based on the principle of interest-convergence to redress hiring inequities, along with the presence of agents of change, increased faculty PEER representation in STEMM departments.


Asunto(s)
Docentes , Estudiantes , Humanos , Etnicidad , Ingeniería , Biología
5.
Compr Psychoneuroendocrinol ; 11: 100153, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35967922

RESUMEN

Background: Compared to their White counterparts, Latina breast cancer survivors have poorer survival rates and health-related quality of life, and higher rates of depression and anxiety which may be a result of chronic stress. Chronic stress impacts the hypothalamic-pituitary-adrenal (HPA) axis, resulting in cortisol dysregulation which may be associated with breast cancer survival. However, cortisol levels and cortisol profiles of Latina breast cancer survivors are poorly characterized due to their underrepresentation in biomedical research. Objective: The objective of this study was to describe cortisol levels and patterns of cortisol secretions in rural Latina breast cancer survivors participating in an RCT study of Nuevo Amanecer-II, an evidence-based peer-delivered cognitive behavioral stress management intervention. Methods: Participant-centered recruitment and collection strategies were used to obtain biospecimens for cortisol analysis. Nine saliva samples (3/day for 3 days) and a hair sample were obtained at baseline and 6-months (3-months post-intervention). We describe cortisol levels and profiles, explore correlations of biomarkers with self-report measures of stress and psychological distress, and compare women who received the intervention with a delayed intervention group on biomarkers of stress. Mean hair cortisol concentration (HCC) was used to assess chronic stress. Based on daily measures of cortisol (awakening, 30 min post-awakening, and bedtime), we calculated three summary measures of the dynamic nature of the cortisol awakening response (CAR): 1) the CAR slope, 2) whether CAR demonstrates a percent change ≥40, and 3) total daily cortisol output (AUCg). Linear and log-binomial regression, accounting for multiple samples per participant, were used to compare cortisol measures at 6-month follow-up by treatment arm. Results: Participants (n = 103) were from two rural California communities; 76 provided at least one saliva sample at baseline and follow-up and were included in the analysis. At baseline, mean age was 57 years, mean years since diagnosis was 2 years, 76% had a high school education or less, and 34% reported financial hardship. The overall median CAR slope was 0.10, and median cortisol AUCg (in thousands) was 11.34 (range = 0.93, 36.66). Mean hair cortisol concentration was 1751.6 pg/mg (SD = 1148.6). Forty-two percent of samples had a ≥40% change in CAR. We found no statistically significant correlations between the cortisol measures and self-reported measures of stress and psychological distress. At follow-up, no differences were seen in HCC (mean difference between intervention and control: -0.11, 95% CI -0.48, 0.25), CAR slope (0.001, 95% CI -0.005, 0.008), cortisol AUCg (-0.15, 95% CI -0.42, 0.13), or ≥40% change in CAR (prevalence ratio 0.87, 95% CI 0.42, 1.77) between treatment arms. Conclusion: Our findings of flattened cortisol profiles among more than half of the sample suggest potential HPA-axis dysregulation among rural Spanish-speaking Latina breast cancer survivors that merits further study due to its implications for long-term survival. Trial registration: http://www.ClinicalTrials.gov identifier NCT02931552.

6.
Placenta ; 122: 66-73, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35462239

RESUMEN

INTRODUCTION: Preterm birth (PTB) remains the leading cause of neonatal morbidity and mortality in the United States. The mechanisms underlying spontaneous PTB (SPTB) involve multiple physiological processes and molecular transformations at the level of the placenta. This study aimed to identify consistent molecular correlates in the placenta linked with SPTB by cross-examining publicly available transcriptomic datasets within two publicly available repositories. METHODS: The National Center for Biotechnology Information and the European Bioinformatics Institute were queried, and relevant datasets were independently normalized, and then merged based on similarity in design. Differentially expressed genes between SPTB and term delivery (TD) were identified using a fixed effects linear model (p < 0.0001) and were evaluated for enrichment of biological processes and pathways. In general, global signatures associated with SPTB were unique to each study. RESULTS: A total of three datasets were used in the meta-analysis to assess the placental transcriptome in SPTB (11 samples) as compared to TD (15 samples). We identified 174 differentially expressed genes consistently correlated with SPTB across all studies, including previously proposed and new candidate biomarkers of SPTB. Differentially expressed genes were significantly enriched for master regulatory pathways relevant to placental development and disease, including chromatin organization and cellular response to stress. DISCUSSION: Identification of differentially expressed genes and associated pathways across multiple studies may identify transcriptomic biomarkers that can be applied in clinical investigations of SPTB and provide researchers enhanced insight into the underlying etiologies of SPTB.


Asunto(s)
Nacimiento Prematuro , Biomarcadores/metabolismo , Femenino , Humanos , Recién Nacido , Placenta/metabolismo , Embarazo , Nacimiento Prematuro/genética , Nacimiento Prematuro/metabolismo , Transcriptoma
7.
Gerontologist ; 62(5): 762-772, 2022 05 26.
Artículo en Inglés | MEDLINE | ID: mdl-35084030

RESUMEN

BACKGROUND AND OBJECTIVES: African American women experience faster telomere shortening (i.e., cellular aging) compared with other racial-gender groups. Prior research demonstrates that race and gender interact to influence culturally specific norms for responding to socially-relevant stress and other stress-coping processes, which may affect healthy aging. RESEARCH DESIGN AND METHODS: Data are from African American Women's Heart & Health Study participants who consented to DNA extraction (n = 140). Superwoman Schema (SWS) was measured using 5 validated subscales: presenting strength, emotion suppression, resisting vulnerability, motivation to succeed, and obligation to help others. Racial identity was measured using 3 subscales from the Multidimensional Inventory of Black Identity: racial centrality, private regard, and public regard. Relative telomere length (rTL) was measured using DNA extracted from blood samples. Path analysis tested associations and interactions between SWS and racial identity dimensions with rTL. RESULTS: For SWS, higher resistance to being vulnerable predicted longer telomeres. For racial identity, high private regard predicted longer telomeres while high public regard predicted shorter telomeres. Interactions were found between public regard and 2 SWS dimensions: among women with high public regard, emotion suppression (ß = 0.20, p < .05) and motivation to succeed (ß = 0.18, p < .05) were associated with longer rTL. The interaction between high centrality and emotion suppression predicted shorter rTL (ß = -0.17, p < .05). DISCUSSION AND IMPLICATIONS: Culturally specific responses to gendered racism and racial identity, developed early in life and shaped over the life course, are important psychosocial determinants of cellular aging among African American women.


Asunto(s)
Negro o Afroamericano , Racismo , Adaptación Psicológica , Negro o Afroamericano/psicología , Senescencia Celular , Femenino , Humanos , Racismo/psicología , Salud de la Mujer
8.
Ethn Health ; 27(3): 542-553, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-32223329

RESUMEN

Objectives: Racial/ethnic minority women have disproportionately lower breast cancer survival rates compared to white women. As minorities in the US are exposed to higher levels of discrimination, and exposure to discrimination has been associated with shorter telomere lengths (TLs), we investigated the association between perceived everyday discrimination and TL in a multiethnic sample of breast cancer survivors.Design: We examined a cohort of 58 breast cancer survivors who participated in a pilot study to investigate biological stress. Participants were drawn from the Equality in Breast Cancer Care (EBCC) study and were asked to provide saliva samples for DNA extraction. Ordinary least squares linear regression was used to derive regression coefficients (ß) and 95% confidence intervals (CI).Results: Higher levels of everyday discrimination were associated with longer TLs (eß = 1.04, CI: 1.01-1.07), adjusting for age, race/ethnicity, breast cancer stage, and breast cancer subtype. Luminal B subtypes were associated with longer telomeres relative to luminal A, while African Americans were less likely than Whites to have longer telomeres.Conclusions: Further research, particularly longitudinal studies, is needed to understand how discrimination, and other social stressors, impact biological stress and health outcomes.


Asunto(s)
Neoplasias de la Mama , Supervivientes de Cáncer , Etnicidad , Femenino , Humanos , Grupos Minoritarios , Proyectos Piloto , Telómero
9.
Artículo en Inglés | MEDLINE | ID: mdl-35010345

RESUMEN

In San Francisco (SF), many environmental factors drive the unequal burden of preterm birth outcomes for communities of color. Here, we examine the association between human exposure to lead (Pb) and preterm birth (PTB) in 19 racially diverse SF zip codes. Pb concentrations were measured in 109 hair samples donated by 72 salons and barbershops in 2018-2019. Multi-method data collection included randomly selecting hair salons stratified by zip code, administering demographic surveys, and measuring Pb in hair samples as a biomarker of environmental exposure to heavy metals. Concentrations of Pb were measured by atomic emission spectrometry. Aggregate neighborhood Pb levels were linked to PTB and demographic data using STATA 16 SE (StataCorp LLC, College Station, TX, USA). Pb varied by zip code (p < 0.001) and correlated with PTB (p < 0.01). Increases in unadjusted Pb concentration predicted an increase in PTB (ß = 0.003; p < 0.001) and after adjusting for poverty (ß = 0.002; p < 0.001). Confidence intervals contained the null after further adjustment for African American/Black population density (p = 0.16), suggesting that race is more indicative of high rates of PTB than poverty. In conclusion, Pb was found in every hair sample collected from SF neighborhoods. The highest concentrations were found in predominately African American/Black and high poverty neighborhoods, necessitating public health guidelines to eliminate this environmental injustice.


Asunto(s)
Plomo , Nacimiento Prematuro , Negro o Afroamericano , Humanos , Recién Nacido , Nacimiento Prematuro/epidemiología , Características de la Residencia , San Francisco/epidemiología
10.
Ann Behav Med ; 55(7): 601-611, 2021 06 28.
Artículo en Inglés | MEDLINE | ID: mdl-33289498

RESUMEN

BACKGROUND: Over the life course, African American (AA) women have faster telomere attrition, a biological indicator of accelerated aging, than White women. Race, sex, age, and composite socioeconomic status (SES) modify associations of institutional racial discrimination and telomere length. However, interactions with everyday racial discrimination have not been detected in AA women, nor have interactions with individual socioeconomic predictors. PURPOSE: We estimated statistical interaction of institutional and everyday racial discrimination with age, education, employment, poverty, and composite SES on telomere length among midlife AA women. METHODS: Data are from a cross-section of 140 AA women aged 30-50 years residing in the San Francisco Bay Area. Participants completed questionnaires, computer-assisted self-interviews, physical examinations, and blood draws. Adjusted linear regression estimated bootstrapped racial discrimination-relative telomere length associations with interaction terms. RESULTS: Racial discrimination did not interact with age, poverty, or composite SES measures to modify associations with telomere length. Interactions between independent SES variables were nonsignificant for everyday discrimination whereas institutional discrimination interacted with educational attainment and employment status to modify telomere length. After adjusting for covariates, we found that higher institutional discrimination was associated with shorter telomeres among employed women with lower education (ß = -0.020; 95% confidence interval = -0.036, -0.003). Among unemployed women with higher education, higher institutional discrimination was associated with longer telomeres (ß = 0.017; 95% confidence interval = 0.003, 0.032). Factors related to having a post-high school education may be protective against the negative effects of institutional racism on cellular aging for AA women.


Asunto(s)
Negro o Afroamericano/etnología , Senescencia Celular/fisiología , Escolaridad , Empleo , Racismo/etnología , Clase Social , Acortamiento del Telómero/fisiología , Adulto , Negro o Afroamericano/estadística & datos numéricos , Envejecimiento/etnología , Femenino , Humanos , Persona de Mediana Edad , Racismo/estadística & datos numéricos , San Francisco/epidemiología , Salud de la Mujer/etnología
13.
Ethn Dis ; 30(4): 681-692, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32989368

RESUMEN

Objective: The biomedical/behavioral sciences lag in the recruitment and advancement of students from historically underrepresented backgrounds. In 2014 the NIH created the Diversity Program Consortium (DPC), a prospective, multi-site study comprising 10 Building Infrastructure Leading to Diversity (BUILD) institutional grantees, the National Research Mentoring Network (NRMN) and a Coordination and Evaluation Center (CEC). This article describes baseline characteristics of four incoming, first-year student cohorts at the primary BUILD institutions who completed the Higher Education Research Institute, The Freshmen Survey between 2015-2019. These freshmen are the primary student cohorts for longitudinal analyses comparing outcomes of BUILD program participants and non-participants. Design: Baseline description of first-year students entering college at BUILD institutions during 2015-2019. Setting: Ten colleges/universities that each received <$7.5mil/yr in NIH Research Project Grants and have high proportions of low-income students. Participants: First-year undergraduate students who participated in BUILD-sponsored activities and a sample of non-BUILD students at the same BUILD institutions. A total of 32,963 first-year students were enrolled in the project; 64% were female, 18% Hispanic/Latinx, 19% African American/Black, 2% American Indian/Alaska Native and Native Hawaiian/Pacific Islander, 17% Asian, and 29% White. Twenty-seven percent were from families with an income <$30,000/yr and 25% were their family's first generation in college. Planned Outcomes: Primary student outcomes to be evaluated over time include undergraduate biomedical degree completion, entry into/completion of a graduate biomedical degree program, and evidence of excelling in biomedical research and scholarship. Conclusions: The DPC national evaluation has identified a large, longitudinal cohort of students with many from groups historically underrepresented in the biomedical sciences that will inform institutional/national policy level initiatives to help diversify the biomedical workforce.


Asunto(s)
Investigación Biomédica/educación , Diversidad Cultural , Programas de Gobierno/estadística & datos numéricos , Estudiantes/estadística & datos numéricos , Universidades , Adolescente , Adulto , Negro o Afroamericano/estadística & datos numéricos , Asiático/estadística & datos numéricos , Escolaridad , Femenino , Hispánicos o Latinos/estadística & datos numéricos , Humanos , Renta/estadística & datos numéricos , Masculino , Persona de Mediana Edad , National Institutes of Health (U.S.)/economía , Nativos de Hawái y Otras Islas del Pacífico/estadística & datos numéricos , Estudios Prospectivos , Encuestas y Cuestionarios , Estados Unidos , Población Blanca/estadística & datos numéricos , Recursos Humanos , Adulto Joven , Indio Americano o Nativo de Alaska/estadística & datos numéricos
14.
Cancer Epidemiol Biomarkers Prev ; 29(3): 606-615, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-32132128

RESUMEN

BACKGROUND: Latinos are underrepresented in biomedical research, particularly biomarker research, yet they constitute the nation's largest ethnic/racial minority. Optimal methods for obtaining biospecimens for biomarker research among Latinos need to be identified. To minimize barriers and enhance participation, this study developed and tested tailored strategies for collecting biomarkers of chronic stress and premature aging among Spanish-speaking Latina breast cancer survivors. METHODS: This study used a community-based participatory approach and selected hair and saliva as noninvasive biospecimens to assess telomere length, the cortisol awakening response (CAR), and hair cortisol concentration. We developed bilingual multimedia instructional materials, and community health workers assisted in collections. Telephone surveys assessed willingness to participate in future studies, barriers to sample collection, and recommendations for improving the strategies. RESULTS: A total of 103 participants were recruited over 18 months from two rural sites in California, and 88 were retained at 6-month follow-up. At baseline, rates of donating salivary DNA for telomere length measurement, saliva for CAR analysis, and hair for cortisol concentration were 98%, 89%, and 52%, respectively. At follow-up, rates were 83%, 76%, and 55%, respectively. The majority of participants reported being very willing to provide hair (72%) or saliva (74%) for future studies. CONCLUSIONS: Our results support the feasibility of including minorities in biomedical research. We report excellent rates of saliva collection when community partners are engaged in the process, and when patient-centered and culturally tailored recruitment methods are implemented. IMPACT: The development of methods to facilitate the inclusion of minorities in biomedical research is critical to eliminate racial/ethnic health disparities.


Asunto(s)
Biomarcadores de Tumor/genética , Neoplasias de la Mama/diagnóstico , Supervivientes de Cáncer/psicología , Participación del Paciente/psicología , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/genética , California , Supervivientes de Cáncer/estadística & datos numéricos , Investigación Participativa Basada en la Comunidad , Asistencia Sanitaria Culturalmente Competente/métodos , Asistencia Sanitaria Culturalmente Competente/organización & administración , Asistencia Sanitaria Culturalmente Competente/estadística & datos numéricos , ADN/genética , ADN/aislamiento & purificación , Estudios de Factibilidad , Femenino , Estudios de Seguimiento , Cabello/química , Hispánicos o Latinos/psicología , Hispánicos o Latinos/estadística & datos numéricos , Humanos , Persona de Mediana Edad , Grupos Minoritarios/psicología , Grupos Minoritarios/estadística & datos numéricos , Participación del Paciente/estadística & datos numéricos , Atención Dirigida al Paciente/métodos , Evaluación de Programas y Proyectos de Salud , Saliva/química , Manejo de Especímenes/psicología , Manejo de Especímenes/estadística & datos numéricos
15.
Ann N Y Acad Sci ; 1457(1): 104-127, 2019 12.
Artículo en Inglés | MEDLINE | ID: mdl-31403707

RESUMEN

Racial discrimination has been linked to allostatic load (i.e., cumulative biological stress) among African American women. However, limited attention has been given to psychosocial processes involved in the stress response-critical for understanding biological pathways to health-in studies examining racial discrimination as a social determinant of health. We examined whether the superwoman schema (SWS), a multidimensional culture-specific framework characterizing psychosocial responses to stress among African American women, modifies the association between racial discrimination and allostatic load. We used purposive sampling to recruit a community sample of African American women ages 30-50 from five San Francisco Bay Area counties (n = 208). Path analysis was used to test for interactions while accounting for the covariance among SWS subscales using both linear and quadratic models. Significant interactions were observed between racial discrimination and four of the five SWS subscales. Feeling obligated to present an image of strength and an obligation to suppress emotions were each protective whereas feeling an intense motivation to succeed and feeling an obligation to help others exacerbated the independent health risk associated with experiencing racial discrimination. Our findings affirm the need to consider individual variability in coping and potentially other psychosocial processes involved in the stress response process, and offer several insights that may help elucidate the mechanisms by which racial discrimination gets "under the skin."


Asunto(s)
Adaptación Psicológica , Alostasis , Negro o Afroamericano/psicología , Racismo , Estrés Psicológico/etnología , Adulto , Biomarcadores/sangre , Estudios Transversales , Femenino , Geografía , Humanos , Modelos Lineales , Persona de Mediana Edad , Riesgo , San Francisco , Clase Social , Estrés Fisiológico , Encuestas y Cuestionarios , Salud de la Mujer
16.
CBE Life Sci Educ ; 18(3): ar40, 2019 09.
Artículo en Inglés | MEDLINE | ID: mdl-31441717

RESUMEN

The present studies aimed to advance the measurement and understanding of microaffirmation kindness cues and assessed how they related to historically underrepresented (HU) and historically overrepresented (HO) undergraduate student persistence in science-related career pathways. Study 1 developed and tested the dimensionality of a new Microaffirmations Scale. Study 2 confirmed the two-factor structure of the Microaffirmations Scale and demonstrated that the scale possessed measurement invariance across HU and HO students. Further, the scale was administered as part of a longitudinal design spanning 9 months, with results showing that students' reported microaffirmations did not directly predict higher intentions to persist in science-related career pathways 9 months later. However, scientific self-efficacy and identity, measures of student integration into the science community, mediated this relationship. Overall, our results demonstrated that microaffirmations can be measured in an academic context and that these experiences have predictive value when they increase students' integration into their science communities, ultimately resulting in greater intentions to persist 9 months later. Researchers and practitioners can use the Microaffirmations Scale for future investigations to increase understanding of the positive contextual factors that can ultimately help reduce persistence gaps in science, technology, engineering, and mathematics degree attainment.


Asunto(s)
Selección de Profesión , Ciencia/educación , Estudiantes , Análisis Factorial , Femenino , Humanos , Masculino , Grupos Minoritarios , Modelos Educacionales , Autoeficacia , Adulto Joven
17.
CBE Life Sci Educ ; 18(3): ar47, 2019 09.
Artículo en Inglés | MEDLINE | ID: mdl-31469624

RESUMEN

Instructor Talk-noncontent language used by instructors in classrooms-is a recently defined and promising variable for better understanding classroom dynamics. Having previously characterized the Instructor Talk framework within the context of a single course, we present here our results surrounding the applicability of the Instructor Talk framework to noncontent language used by instructors in novel course contexts. We analyzed Instructor Talk in eight additional biology courses in their entirety and in 61 biology courses using an emergent sampling strategy. We observed widespread use of Instructor Talk with variation in the amount and category type used. The vast majority of Instructor Talk could be characterized using the originally published Instructor Talk framework, suggesting the robustness of this framework. Additionally, a new form of Instructor Talk-Negatively Phrased Instructor Talk, language that may discourage students or distract from the learning process-was detected in these novel course contexts. Finally, the emergent sampling strategy described here may allow investigation of Instructor Talk in even larger numbers of courses across institutions and disciplines. Given its widespread use, potential influence on students in learning environments, and ability to be sampled, Instructor Talk may be a key variable to consider in future research on teaching and learning in higher education.


Asunto(s)
Biología/educación , Docentes , Enseñanza , Curriculum , Recolección de Datos , Humanos , Aprendizaje , Estudiantes
18.
Int J Sport Nutr Exerc Metab ; 29(3): 249-253, 2019 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-29989465

RESUMEN

Bacteria residing in the human gastrointestinal tract has a symbiotic relationship with its host. Animal models have demonstrated a relationship between exercise and gut microbiota composition. This was the first study to explore the relationship between cardiorespiratory fitness (maximal oxygen consumption, VO2max) and relative gut microbiota composition (Firmicutes to Bacteroidetes ratio [F/B]) in healthy young adults in a free-living environment. Twenty males and 17 females (25.7 ± 2.2 years), who did not take antibiotics in the last 6 months, volunteered for this study. VO2max was measured using a symptom-limited graded treadmill test. Relative microbiota composition was determined by analyzing DNA extracted from stool samples using a quantitative polymerase chain reaction that specifically measured the quantity of a target gene (16S rRNA) found in Firmicutes and Bacteroidetes. Relationships between F/B and potentially related dietary, anthropometric, and fitness variables were assessed using correlation analyses with an appropriate Bonferroni adjustment (p < .004). The average F/B ratio in all participants was 0.94 ± 0.03. The F/B ratio was significantly correlated to VO2max (r = .48, p < .003), but no other fitness, nutritional intake, or anthropometric variables (p > .004). VO2max explained ∼22% of the variance of an individual's relative gut bacteria as determined by the F/B ratio. These data support animal findings, demonstrating a relationship between relative human gut microbiota composition and cardiorespiratory fitness in healthy young adults. Gastrointestinal bacteria is integral in regulating a myriad of physiological processes, and greater insight regarding ramifications of exercise and nutrition on gut microbial composition may help guide therapies to promote human health.


Asunto(s)
Capacidad Cardiovascular , Microbioma Gastrointestinal , Adulto , Bacteroidetes/aislamiento & purificación , Dieta , Ejercicio Físico , Femenino , Firmicutes/aislamiento & purificación , Tracto Gastrointestinal/microbiología , Humanos , Masculino , Consumo de Oxígeno , Adulto Joven
19.
CBE Life Sci Educ ; 17(1)2018.
Artículo en Inglés | MEDLINE | ID: mdl-29326102

RESUMEN

Many efforts to improve science teaching in higher education focus on a few faculty members at an institution at a time, with limited published evidence on attempts to engage faculty across entire departments. We created a long-term, department-wide collaborative professional development program, Biology Faculty Explorations in Scientific Teaching (Biology FEST). Across 3 years of Biology FEST, 89% of the department's faculty completed a weeklong scientific teaching institute, and 83% of eligible instructors participated in additional semester-long follow-up programs. A semester after institute completion, the majority of Biology FEST alumni reported adding active learning to their courses. These instructor self-reports were corroborated by audio analysis of classroom noise and surveys of students in biology courses on the frequency of active-learning techniques used in classes taught by Biology FEST alumni and nonalumni. Three years after Biology FEST launched, faculty participants overwhelmingly reported that their teaching was positively affected. Unexpectedly, most respondents also believed that they had improved relationships with departmental colleagues and felt a greater sense of belonging to the department. Overall, our results indicate that biology department-wide collaborative efforts to develop scientific teaching skills can indeed attract large numbers of faculty, spark widespread change in teaching practices, and improve departmental relations.


Asunto(s)
Biología/educación , Desarrollo de Programa , Enseñanza , Docentes , Objetivos , Humanos , Motivación , Aprendizaje Basado en Problemas , Estudiantes , Encuestas y Cuestionarios
20.
Artículo en Inglés | MEDLINE | ID: mdl-31346588

RESUMEN

San Francisco Health Initiative (SFHI) is an undergraduate student organization founded in 2017 that works to address community issues in health by increasing awareness of high school students to relevant topics; it is expected that their increased awareness of local issues in health, coupled with improved access to higher education in Science, Technology, Engineering, and Math (STEM), will expand the capacity of the free clinic workforce. SFHI has collaborated with local high schools in San Francisco to actualize this mission by conducting five workshops on the following topics: (1) environmental and racial health disparities, (2) racial disparities amongst people who suffer from chronic disease, (3) social pressure defined and assessed, (4) the basis of disease as a preventative health measure, and (5) effects of adiposity in the development of Type 2 diabetes mellitus (T2DM). SFHI aims to create an affirming and inclusive environment that spurs high schools to pursue a college degree in a STEM field and to consider a career serving in a free clinic.

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