Early Childhood Expulsions and Suspensions Undermine Our Nation's Most Promising Agent of Opportunity and Social Justice

This brief presents the latest information regarding early childhood expulsions and suspensions with a special emphasis on how continuing gender and race disparities violate the civil rights of many of our youngest learners and contribute to our nation's costly achievement gap by locking our boys and African-American children out of educational opportunities and diminishing the ability of early education to provide the social justice remedy it was designed to produce

Rapid Response and Restoration for Coral Reef Injuries in Southeast Florida: Guidelines and Recommendations

From the time an injury to coral reef resources is reported, a well-coordinated and implemented plan is critical to the success of response and restoration efforts. There are three major plan components, each of which is equally important: (1) the Initial Response period immediately following notification of the incident; (2) the Response period, during which the Responsible Party (RP) is identified, the Trustees and RP carry out their respective responsibilities, a Primary Restoration plan is developed, authorizations and contractors to conduct restoration activities are sought and obtained, and primary restoration activities are conducted; and (3) the Post-Response period, which is largely a monitoring, compensatory restoration/mitigation, and penalty assessment phase that takes place after primary restoration activities are carried out. The guidelines and recommendations presented in this docuemnt were developed to examine reef injury response processes and to facilitate a rapid response to, and the successful restoration of, southeast Florida reefs. The document was developed as part of a Local Action Strategy (LAS) of the Southeast Florida Coral Reef Initiative (SEFCRI) to develop guidelines and recommendations for a rapid response and restoration process for reef injuries in the SEFCRI region. In February 2006, a two day workshop was held in Fort Lauderdale, Florida, to compile information on existing emergency response processes, identify deficiencies and develop solutions for those processes, and compile information on existing technologies and procedures for triage and the restoration of reef injuries. The first day of the workshop focused on process and policy issues. The second day addressed response, injury and mitigation assessment, restoration and repair, and monitoring. Workshop panelists and attendees included respresentatives from local, state, and federal agencies with proprietary or regulatory authority or jurisdiction over sovereign submerged lands and reef resources located within Florida\u27s waters. Also in attendance were technical and academic experts in the fields of coral reef research, injury assessment, and restoration, as well as marine contractors, private and public attorneys, nongovernmental organizations, and other interested parties. These guidelines and recommendations incorporate information from the combined experience of the workshop attendees, workshop outcomes, published documents, and numerous state and federal regulations, policies, and procedures

Perturbations and operator trace functions

We study the spectral functional tr f(D+A) for a suitable function f, a self-adjoint operator D having compact resolvent, and a certain class of bounded self-adjoint operators A. Such functionals were introduce by Chamseddine and Connes in the context of noncommutative geometry. Motivated by the physical applications of these functionals, we derive a Taylor expansion of them in terms of G\^ateaux derivatives. This involves divided differences of f evaluated on the spectrum of D, as well as the matrix coefficients of A in an eigenbasis of D. This generalizes earlier results to infinite dimensions and to any number of derivatives.Comment: 13 pages; To appear in J. Funct. Ana

Economic impacts of banning subtherapeutic use of antibiotics in swine production

Public health officials and physicians are concerned about possible development of bacterial resistance and potential effects on human health that may be related to the use of antimicrobial agents in livestock feed. The focus of this research is aimed at determining the economic effects that subtherapeutic bans of antimicrobials would have on both swine producers and consumers. The results show that a ban on growth promotants for swine would be costly, totaling $242.5 million annually, with swine producers sharing the larger portion in the short run and consumers sharing the larger portion in the long run.Peer reviewedAgricultural EconomicsVeterinary Pathobiolog

Caribbean Corals in Crisis: Record Thermal Stress, Bleaching, and Mortality in 2005

BACKGROUND The rising temperature of the world's oceans has become a major threat to coral reefs globally as the severity and frequency of mass coral bleaching and mortality events increase. In 2005, high ocean temperatures in the tropical Atlantic and Caribbean resulted in the most severe bleaching event ever recorded in the basin. METHODOLOGY/PRINCIPAL FINDINGS Satellite-based tools provided warnings for coral reef managers and scientists, guiding both the timing and location of researchers' field observations as anomalously warm conditions developed and spread across the greater Caribbean region from June to October 2005. Field surveys of bleaching and mortality exceeded prior efforts in detail and extent, and provided a new standard for documenting the effects of bleaching and for testing nowcast and forecast products. Collaborators from 22 countries undertook the most comprehensive documentation of basin-scale bleaching to date and found that over 80% of corals bleached and over 40% died at many sites. The most severe bleaching coincided with waters nearest a western Atlantic warm pool that was centered off the northern end of the Lesser Antilles. CONCLUSIONS/SIGNIFICANCE Thermal stress during the 2005 event exceeded any observed from the Caribbean in the prior 20 years, and regionally-averaged temperatures were the warmest in over 150 years. Comparison of satellite data against field surveys demonstrated a significant predictive relationship between accumulated heat stress (measured using NOAA Coral Reef Watch's Degree Heating Weeks) and bleaching intensity. This severe, widespread bleaching and mortality will undoubtedly have long-term consequences for reef ecosystems and suggests a troubled future for tropical marine ecosystems under a warming climate.This work was partially supported by salaries from the NOAA Coral Reef Conservation Program to the NOAA Coral Reef Conservation Program authors. NOAA provided funding to Caribbean ReefCheck investigators to undertake surveys of bleaching and mortality. Otherwise, no funding from outside authors' institutions was necessary for the undertaking of this study. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript

Coral Reef Ecosystem Restoration Off Southeast Florida

Significant coral reef community development along the eastern shelf of the United States continues northward of the Florida Keys through Miami-Dade, Broward, Palm Beach, and Martin Counties, Florida (to Latitude 27° N). These Southeast Florida high-latitude coral communities have approximately 30 species of stony corals, stony coral coverage of 2-3%, and a diverse assemblage of reef gorgonians, sponges, and fishes. This system lays within 3 km of the coast offshore a highly urbanized area comprising a population of over 5 million people (the population of Broward County alone exceeds 1.7 million). These reefs are important economic assets: a 2001 economic assessment estimated the annual reef input for Miami-Dade, Broward, and Palm Beach Counties at 5.8 billion dollars. Potential impacts to the system include those from commercial and recreational fishing and diving, sewer outfalls, marine construction activities (fiber optic cables, channel dredging, gas pipe lines), and major shipping ports and ship groundings. Southeast Florida has three major shipping ports; Port of West Palm Beach, Port Everglades (Broward County), and the Port of Miami. At Port Everglades alone, over 5,300 ships call on an annual basis. This heavy ship traffic very near and within a coral reef system has resulted in nearly one ship grounding per year offshore Broward County since the early 1990’s. Nearly all reef damage events involve some level of injury assessment, triage and restoration, and monitoring. Triage generally involves the uprighting and caching of dislodged and fragmented stony coral colonies. At a minimum, restoration activities include the reattachment of these stony coral colonies. Restoration may also include the reattachment of dislodged octocorals and sponges and the removal of rubble generated by the damage event. This work summarizes restoration activities and monitoring results from several representative reef damage events that have occurred offshore Broward County, Florida. Discussion will include the effectiveness of past and current restoration and monitoring activities. Recommendations for improved restoration activities and more effective recovery monitoring will also be discussed