9,819 research outputs found
A Review of Disciplinary Interventions in K12 Public Education
As a part of the Achieving Racial Equity in School Disciplinary Policies and Practices study from the Metropolitan Educational Research Consortium, this literature brief offers an overview of school discipline interventions in K12 public education. This includes more punitive models that have been used in the past that have contributed to racial disparities in discipline outcomes, including corporal punishment and zero-tolerance policies. Additionally, this brief offers an overview of four prominent alternative approaches to school discipline: Trauma Informed Care, Positive Behavioral Interventions and Supports, Culturally Responsive Positive Behavioral Interventions and Supports, and Restorative Practices. The literature brief offers the history, theory of action, and evidence of effectiveness for each alternative discipline approach and offers a discussion of how to effectively implement them in schools. Implications for the Commonwealth of Virginia are discussed throughout the brief
Do Predictive Brain Implants Threaten Patient's Autonomy or Authenticity?
The development of predictive brain implant (PBI) technology that is able to forecast specific neuronal events and advise and/or automatically administer appropriate therapy for diseases of the brain raises a number of ethical issues. Provided that this technology satisfies basic safety and functionality conditions, one of the most pressing questions to address is its relation to the autonomy of patients. As Frederic Gilbert in his article asks, if autonomy implies a certain idea of freedom, or self-government, how can an individual be considered to decide freely if the implanted device stands at the inception of the causal chain producing his decisions? He claims that PBIs threaten persons’ autonomy by diminishing their post-operative experience of self-control. In this commentary, I wish to discuss this claim. Contrary to Gilbert, I will suggest that PBIs do not pose a significant threat to patient’s autonomy, as self-control, but rather to his/her sense of authenticity. My claim is that the language of authenticity, already introduced in the recent bioethical literature, may offer a better way to voice some of the concerns with PBIs that Gilbert recognized
Understanding Racial Inequity in School Discipline Across the Richmond Region
This report comes from the MERC Achieving Racial Equity in School Disciplinary Policies and Practices study. Launched in the spring of 2015, the purpose of this mixed- method study was to understand the factors related to disproportionate school discipline outcomes in MERC division schools. The study had two phases. Phase one (quantitative) used primary and secondary data to explore racial disparities in school discipline in the MERC region as well as discipline programs schools use to address them. Phase two (qualitative) explored the implementation of discipline programs in three MERC region schools, as well as educator and student perceptions of school discipline and racial disproportionality. This report shares findings from both phases of our study and offers numerous implications and recommendations for research, policy, and practice
A graph polynomial for independent sets of bipartite graphs
We introduce a new graph polynomial that encodes interesting properties of
graphs, for example, the number of matchings and the number of perfect
matchings. Most importantly, for bipartite graphs the polynomial encodes the
number of independent sets (#BIS).
We analyze the complexity of exact evaluation of the polynomial at rational
points and show that for most points exact evaluation is #P-hard (assuming the
generalized Riemann hypothesis) and for the rest of the points exact evaluation
is trivial.
We conjecture that a natural Markov chain can be used to approximately
evaluate the polynomial for a range of parameters. The conjecture, if true,
would imply an approximate counting algorithm for #BIS, a problem shown, by
[Dyer et al. 2004], to be complete (with respect to, so called, AP-reductions)
for a rich logically defined sub-class of #P. We give a mild support for our
conjecture by proving that the Markov chain is rapidly mixing on trees. As a
by-product we show that the "single bond flip" Markov chain for the random
cluster model is rapidly mixing on constant tree-width graphs
New and Developing Research on Disparities in Discipline
This briefing paper describes the results of new research in the area of disciplinary disparities, and identifies remaining gaps in the literature that can guide researchers and funders of research. The brief is organized into two sections:1) What Have we Learned? Key New Research Findings describes research from leading scholars across the nation commissioned by The Center for Civil Rights Remedies at UCLA's Civil Rights Project with the support of the Collaborative, findings from projects supported by the Collaborative Funded Research Grant Program, and other new research on disproportionality in school discipline in the peer-reviewed literature.2) Future Research Needs describes gaps that remain in the research base. Although there has been considerable new knowledge generated in recent years, significant gaps remain, especially in identifying and evaluating intervention strategies that reduce inequity in discipline for all students
Students Talk about Energy in Project- Based Inquiry Science
We examine the types of emergent language eighth grade students in rural Maine middle schools use when they discuss energy in their first experiences with Project-Based Inquiry Science: Energy, a research-based curriculum that uses a specific language for talking about energy. By comparative analysis of the language used by the curriculum materials to students’ language, we find that students’ talk is at times more aligned with a Stores and Transfer model of energy than the Forms model supported by the curriculum
Commonwealth place-based service delivery initiatives: key learnings project
Overview: Place-based initiatives are programs designed and delivered with the intention of targeting a specific geographical location and particular population group in order to respond to complex social problems. Typically, they focus on areas and communities with entrenched disadvantage or deprivation.
This report investigates the key factors and characteristics associated with successful outcomes with such programs, drawing on the international literature and evaluation studies of Australian government and overseas programs.
Key messages:
Many Commonwealth place-based initiatives reviewed had features that accord with those of international place-based initiatives, including common program elements such as design, delivery, implementation and evaluation.
Evaluation of all these common elements is rarely done by either international or Commonwealth place-based initiatives.
In particular, evaluations of Commonwealth place-based initiatives lacked sufficient evidence to establish the causal effects of initiatives, their cost-effectiveness and an understanding of how these initiatives work to achieve their goals. This was more pronounced among the evaluation of Commonwealth initiatives than in international evaluations
Generalized Strong Preservation by Abstract Interpretation
Standard abstract model checking relies on abstract Kripke structures which
approximate concrete models by gluing together indistinguishable states, namely
by a partition of the concrete state space. Strong preservation for a
specification language L encodes the equivalence of concrete and abstract model
checking of formulas in L. We show how abstract interpretation can be used to
design abstract models that are more general than abstract Kripke structures.
Accordingly, strong preservation is generalized to abstract
interpretation-based models and precisely related to the concept of
completeness in abstract interpretation. The problem of minimally refining an
abstract model in order to make it strongly preserving for some language L can
be formulated as a minimal domain refinement in abstract interpretation in
order to get completeness w.r.t. the logical/temporal operators of L. It turns
out that this refined strongly preserving abstract model always exists and can
be characterized as a greatest fixed point. As a consequence, some well-known
behavioural equivalences, like bisimulation, simulation and stuttering, and
their corresponding partition refinement algorithms can be elegantly
characterized in abstract interpretation as completeness properties and
refinements
Penrose voting system and optimal quota
Systems of indirect voting based on the principle of qualified majority can
be analysed using the methods of game theory. In particular, this applies to
the voting system in the Council of the European Union, which was recently a
subject of a vivid political discussion. The a priori voting power of a voter
measures his potential influence over the decisions of the voting body under a
given decision rule. We investigate a system based on the law of Penrose, in
which each representative in the voting body receives the number of votes (the
voting weight) proportional to the square root of the population he or she
represents. Here we demonstrate that for a generic distribution of the
population there exists an optimal quota for which the voting power of any
state is proportional to its weight. The optimal quota is shown to decrease
with the number of voting countries.Comment: 12 pages, 2 figure
Getting There: Improving Attendance in the Buffalo Public Schools
High rates of absenteeism in the Buffalo Public Schools (“BPS”) are strongly linked to low academic performance and graduation rates. Several difficult issues contribute to the low attendance in Buffalo, including poverty, segregation, mental and physical health challenges, access to transportation, and problems with school climate and student engagement. Many effective programs to improve attendance are already in place, but more work needs to be done. Recent data provides some insights into the attendance situation in BPS. For example, recent BPS data shows a direct correlation between high school students’ attendance rates and their success on Regents exams. In spring 2014, there was a difference of 35% between the passage rates of students with satisfactory attendance and those with severe absenteeism
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