Molecular thermodynamics for cell biology as taught with boxes     

Mayorga LS  López MJ  Becker WM 《CBE life sciences education》2012,11(1):31-38

Thermodynamic principles are basic to an understanding of the complex fluxes of energy and information required to keep cells alive. These microscopic machines are nonequilibrium systems at the micron scale that are maintained in pseudo-steady-state conditions by very sophisticated processes. Therefore, several nonstandard concepts need to be taught to rationalize why these very ordered systems proliferate actively all over our planet in seeming contradiction to the second law of thermodynamics. We propose a model consisting of boxes with different shapes that contain small balls that are in constant motion due to a stream of air blowing from below. This is a simple macroscopic system that can be easily visualized by students and that can be understood as mimicking the behavior of a set of molecules exchanging energy. With such boxes, the basic concepts of entropy, enthalpy, and free energy can be taught while reinforcing a molecular understanding of the concepts and stressing the stochastic nature of the thermodynamic laws. In addition, time-related concepts, such as reaction rates and activation energy, can be readily visualized. Moreover, the boxes provide an intuitive way to introduce the role in cellular organization of "information" and Maxwell's demons operating under nonequilibrium conditions.  相似文献   

Scholar-Activism: A Twice Told Tale     

Daiyu Suzuki  Edwin Mayorga 《Multicultural Perspectives》2014,16(1):16-20

What does it mean for individuals to intentionally see themselves as scholar-activists? Moreover, what does navigating a scholar-activist life mean for scholars in the early phases of their academic careers? As emerging scholar-activists the authors of this article are continuing to grapple with these questions, and in this article they present their distinct but overlapping stories of working through and overcoming the false separation of scholarship and activism. By sharing their stories the authors want to both provide readers an opportunity to find resonance in their experiences, and present some points to consider as we all define and live scholar-activism. Scholar-activism is historically situated with sights on the future. The authors have chosen to join the struggle of their predecessors in their scholar-activist work, exploring new possibilities sparked by the confluence of different generations.  相似文献   

Assessing Cultural Orientation,Cultural Fit,and Help‐Seeking Attitudes of Latina Undergraduates     

Alberta M. Gloria  Jeanett Castellanos  Theresa A. Segura‐Herrera  Melissa Mayorga 《Journal of College Counseling》2010,13(2):126-140

This study assessed the influence of cultural orientation and cultural fit of 121 Latina undergraduates' help‐seeking attitudes. Mexican and Anglo orientation, cultural congruity, and perceptions of the university environment did not predict help‐seeking attitudes; however, differences emerged by class standing and self‐reported previous counseling experience. Implications for university counselors are provided.  相似文献   

Using an inoculation message approach to promote public confidence in protective agencies     

Bobi Ivanov  William J. Burns  Timothy L. Sellnow  Elizabeth L. Petrun Sayers  Shari R. Veil  Marcus W. Mayorga 《Journal of Applied Communication Research》2016,44(4):381-398

This investigation tested the effectiveness of inoculation as a pre-crisis strategy in combating the effects of politically motivated violent acts. A four-phase experiment was conducted involving 355 national consumer panel participants. The findings indicate that inoculation can be an effective pre-crisis message strategy as it was successful in enhancing public beliefs in the ability of government agencies to prevent, and minimize the effects of, violent acts. This strategy also created a ‘blanket of protection’ that extended beyond the focal politically motivated attack event as it enhanced the confidence in government agencies to manage national crises in general. Inoculation was also effective in lowering the intensity of experienced fear evoked by the threat of violent attacks and it enhanced the ability of individuals to cope with the aftermath of a crisis.  相似文献   

Negotiating contradictions: educación among Dominican transnational mothers in New York City     

Aldo Anzures Tapia  Rodrigo Mayorga  Gabrielle Oliveira  Lesley Bartlett  Chelsea Kallery  Cynthia N. Carvajal 《Ethnography and Education》2017,12(3):347-366

This paper examines how a transnational orientation shapes Dominican mothers’ contradictory attitudes towards education in New York City. Through this ethnographic study, which draws on 36 interviews, community walkabouts, and participant observations in community-led adult education classes, we show how Dominican mothers struggle with conflicting values; on the one hand, they embrace the idea of schooling for individual advancement, integration in the US, and critical thinking, while on the other hand, they regret the diminution of a collective, family orientation and respect for parents. Overall, this study shows that contradictions are not a sign of confusion or denial, but rather a struggle to transform cultural practices that satisfy multiple worlds. A deeper understanding of these contradictions could help educators and educational institutions consider how these transnational tensions motivate parent engagement and their hopes for their children’s education.  相似文献   

Conocimiento,Colectividad y Curación: Understanding and Addressing Latinx Youth Mental Health and Wellness Through PAR Entremundos     

Mayorga  Edwin  Rosales  Alondra 《The Urban Review》2019,51(4):559-581

Still one of the fasting growing minoritized groups in the U.S., Latinxs [we are using the term Latinx rather than Latino/a or Hispanic, unless a term is used by cited resources. See Scharrón-de Río and Aja (The case For “Latinx”—And why this term matters for intersectionality—everyday feminism [magazine], 2016)], historically, have endured major socio-economic and educational crises that have produced challenges to mental health and wellness. Unfortunately, the challenges many Latinxs face are often overlooked, misunderstood and underserved. This paper is a study of high school youth who were part of the Education in our Barrios Project, #BarrioEdProject, a Philadelphia-based participatory action research (PAR) collaborative, where high school-aged and undergraduate youth work together to conduct research on issues that affect their local communities and schools. Using an ecological-feminist-Latinx framework (Heiman and Artiga in Beyond health care: the role of social determinants in promoting health and health equity, 2015; Nelson and Prilleltensky in Pursuit of Liberation and Well-being, 2nd ed. Palgrave, New York, 2010; Smith and Romero in AJOP Am J Orthopsychiatr 80(1):12–25, 2010) the authors consider how #BarrioEdProject, as a form of PAR Entremundos, function as a space to support youth mental health and address oppressive social determinants of mental health. Drawing on observations, interviews, and written responses from participants, the authors assert that #BarrioEdProject and its curriculum of conocimiento can help participants identify the kinds of trauma that young people face, and create an experience where participants are humanized, share power and develop the skills to take social action.

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