Social organization and the maintenance of aggressive behavior in community-housed male Siamese fighting fish (Betta splendens)

The waning of aggressive behavior in two groups of community-housed maleBetta was studied by observing incidences of display and fighting behaviors. In Experiment 1, observations were made during the establishment of a community, while it was maintained at a stable size, and during systematic removal of the dominant (alpha) males. Experiment 2 investigated the aggressive interactions of males in a stable-sized population, maintained for a period of 10 weeks. The results indicate that prolonged periods of constant conspecific exposure do not necessarily result in a significant attenuation of display behaviors. The data further indicate that the social organization (as determined from aggressive interactions) appears to be one in which the top- and bottom-ranking males are clearly defined. It is suggested that the maintenance of aggressive behavior among community-housed maleBetta may well be related to their social position.     

The experiences of students with learning disabilities in a higher education virtual campus

Institutions of higher education are increasingly asking students to use the online environment, or virtual campus, when carrying out business related to college life. In this paper, we report findings from a study conducted to learn more about the experiences of college students with learning disabilities as they interacted with this virtual campus. Sixteen college students with documented learning disabilities were observed and interviewed while completing eight tasks in a virtual campus environment. Tasks were chosen from those typically performed by college students and included such items as locating the email address of an instructor, locating a journal article in the library’s online database, and identifying the textbook for a course on the bookstore webpage. Findings indicate that these participants were both successful and not successful in task completion within the virtual campus. Factors that impacted performance included features of the virtual campus and participants’ implementation of cognitive and behavioral strategies.     

Guiding explanation construction by children at the entry points of learning progressions

Policy documents in science education suggest that even at the earliest years of formal schooling, students are capable of constructing scientific explanations about focal content. Nonetheless, few research studies provide insights into how to effectively provide scaffolds appropriate for late elementary‐age students' fruitful creation of scientific explanations. This article describes two research studies to address the question, what makes explanation construction difficult for elementary students? The studies were conducted in urban fourth, fifth, and sixth grade classrooms where students were learning science through curricular units that contained 8 weeks of scaffold‐rich activities focused on explanation construction. The first study focused on the kind and amount of information scaffold‐rich assessments provided about young students' abilities to construct explanations under a range of scaffold conditions. Results demonstrated that fifth and sixth grade tests provided strong information about a range of students' abilities to construct explanations under a range of supported conditions. On balance, the fourth grade test did not provide as much information, nor was this test curricular‐sensitive. The second study provided information on pre–post test achievement relative to the amount of curricular intervention utilized over the 8‐week time period with each cohort. Results demonstrated that when taking the amount of the intervention into account, there were strong learning gains in all three grade‐level cohorts. In conjunction with the pre–post study, a type‐of‐error analysis was conducted to better understand the nature of errors among younger students. This analysis revealed that our youngest students generated the most incomplete responses and struggled in particular ways with generating valid evidence. Conclusions emphasize the synergistic value of research studies on scaffold‐rich assessments, curricular scaffolds, and teacher guidance toward a more complete understanding of how to support young students' explanation construction. © 2011 Wiley Periodicals, Inc. J Res Sci Teach 49: 141–165, 2012     

Issues of exceptionality,gender, and power: exploring Canadian children’s award-winning literature

This article explores the gendered ways in which issues of ability and exceptionality are presented in Governor-General award-winning Canadian children’s literature. In much of contemporary feminist thought, there is a strong focus on intersecting oppressions with gender as a central analytic lens. However, ability is still largely absent. Our aim is to bring ability to the forefront in an analysis of gendered representations in children’s literature. We therefore discuss gender, inclusion, and children’s fiction; detail our use of feminist discourse analysis; and present findings from our literature analysis, making connections to societal discourses of inclusion and gender. We conclude that educators must assist students in becoming aware of gendered and abled discourses, discussing their meanings, and deconstructing their hegemonic ideals. Without such critical discussions, the marginalisation of girls and individuals with exceptionalities will continue to be pervasive in children’s literature and, by extension, society.     

Stimulating transition to postconventional morality: The pickering high school study

Over a four-month period, a class of Grade 11 students were involved in discussion of ethical problems and principles at a postconventional level (as defined by Lawrence Kohlberg). At the beginning and the end of the period, these students used very little postconventional thinking. However, one year later they exhibited a significant usage of post-conventional moral thinking, in comparison with a control group that remained unchanged throughout.

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Résumé Pendant quatre mois, les élèves d'une classe de onzième année ont participé à la discussion de problèmes et de principes de moralité au niveau post-classique (selon la définition de Lawrence Kohlberg). Au début et à la fin de cette période, ces étudiants ont exprimé peu de réflexions post-classiques. Un an plus tard, cependant, ils manifestaient une nette attitude fondée sur des principes de morale post-classique alors que l'attitude d'un groupe-témoin n'avait subi aucune modification pendant la même période.

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The authors wish to express their sincerest gratitude for the very willing cooperation and assistance of Mr. Malcolm Mitchell, head of history at Pickering High School, of Mr. Kettle, the then principal, and other members of staff, and of the students involved in the study, particularly those in the experimental class.     

Self-Determination and Student Transition Planning Knowledge and Skills: Predicting Involvement

Abstract

Promoting active student involvement in transition planning has become best practice in promoting self-determination. This study examined the contribution of self-determination to transition planning knowledge and skills for 180 students with disabilities. Utilizing multiple regression analyses, the study found that global self-determination was a significant predictor of overall transition planning knowledge and skills, as well as of transition planning factors related to knowledge and skills about the individualized education program team process, goals, and decision making. Furthermore, when self-determination was broken into its component elements and included in the analyses, those elements, particularly self-regulation and self-awareness/self-knowledge, became the sole predictors of transition planning knowledge and skills.     

Relations Between Effective Emotional Self-Regulation, Attentional Control, and Low-Income Preschoolers' Social Competence with Peers

Relations between children's emotional self-regulation, attentional control, and peer social competence (as reported by both teachers and peers) were examined for 51 low-income, preschool-aged children enrolled in Head Start. Using a short delay-of-gratification task administered at Head Start sites, children's use of self- distraction was found to be positively associated with their success in handling the delay, replicating previous, laboratory-based research. Contrary to our expectations, children's use of self-distraction was found to be unrelated to their attentional control, as assessed during a computer task. Hierarchical regression analyses revealed that children's use of self-distraction predicted significant variance in both peer- and teacher-reports of childrem's competence with peers, even after children's attentional control was statistically taken into account. These findings are discussed in light of current models of reactivity and regulation in predicting young children's social behavior, as well as in the context of early intervention efforts for children facing socioeconomic risk.     

Stability of nonlinear teleoperators using PD controllers without velocity measurements

This paper presents two Proportional-Derivative (PD) like controllers for nonlinear bilateral teleoperation systems. Compared to previous controllers of this kind, these schemes do not make use of velocity measurements. Under the assumptions that the human operator and the environment define passive maps from velocity to force, both controllers can ensure boundedness of velocities and position error. Moreover, in the case that the human and environment forces are zero, the controllers ensure velocity and position synchronization. Furthermore, the paper also presents a generalization to the case of teleoperation of networks of multiple robots. Simulations and real experiments, comparing the performance on free motion and interacting with a stiff wall, support the performance of the reported schemes. The experiments have been performed using two 3-degree-of-freedom nonlinear manipulators.     

Celebrity-bashing or #MeToo contribution? New York Times Online readers debate the boundaries of hashtag feminism

ABSTRACT

In January 2018, a feminist blog, babe, detailed an anonymous woman’s date with comedian Aziz Ansari, ending with her accusation that he had sexually assaulted her by escalating his sexual advances despite her verbal and nonverbal objections. Online reaction to the babe article was swift and plentiful, including a New York Times editorial written by conservative provocateur Bari Weiss entitled, “Aziz Ansari is Guilty. Of Not Being a Mind Reader.” Weiss’ piece drew 2953 online responses before the comment section closed the next day, with wide-ranging views addressing the respective behaviors and motivations of Ansari, “Grace,” and Weiss. The responses provide an opportunity to explore how commenters negotiate the boundaries of the #MeToo movement in the venue that had ignited the movement’s resurgence with the story of movie mogul Harvey Weinstein’s longstanding sexual abuse of women working in the film industry. This study applies quantitative and qualitative analysis to comment discourse and elicits three major themes: (1) expectations for seeking or conveying consent, (2) criteria for publicizing the private, and (3) demarcations between insensitivity and abuse. Justifications frequently offered for the positions articulated were based on references to personal experience, cultural expectations, the #MeToo movement, and feminism.