Science.gov

Sample records for achieved limited success

  1. Teaching for Successful Intelligence Raises School Achievement.

    ERIC Educational Resources Information Center

    Sternberg, Robert J.; Torff, Bruce; Grigorenko, Elena

    1998-01-01

    A "successful intelligence" intervention improved school achievement for a group of 225 ethnically diverse third-graders, both on performance assessments measuring analytical, creative, and practical achievements and on conventional multiple-choice memory assessments. Teaching for triarchic thinking facilitates factual recall, because learning…

  2. Achieving Successful School-University Collaboration.

    ERIC Educational Resources Information Center

    Borthwick, Arlene C.; Stirling, Terry; Nauman, April D.; Cook, Dale L.

    2003-01-01

    Investigated essential elements required to establish and maintain successful school-university partnerships as reported by principals, teachers, and university coordinators involved in both voluntary and mandated partnerships. Results identified five factors representing different perspectives on key elements for successful partnerships, with…

  3. Neurotic Fear of Success, Fear of Failure and Need Achievement.

    ERIC Educational Resources Information Center

    Boardman, Susan K.; And Others

    Neurotic fear of success is conceptually connected to achievement motivation and achievement related conflicts. To investigate the relationship between individuals identified as success-fearers, or failure-fearers, and those high in achievement motivation, 426 college students completed Cohen's Fear of Success Scale, Mandler-Sarason's Test Anxiety…

  4. Leadership Strategies: Achieving Personal and Professional Success.

    PubMed

    Menaker, Ronald

    2016-01-01

    Physicians and allied health staff in healthcare are finding themselves in situations characterized by uncertainty, chaos, and ambiguity, with high levels of burnout. A major influence is an aging U.S. population, resulting in increasing cost and reimbursement pressures. Medical group practices need leaders who have the capability to thrive in this environment. This article presents an integrated leadership model offering strategies and insights gained from keeping a journal for 40 years. Strategies to be shared include leading self through learning, leading others by developing relationships, leading organizations by achieving excellence, and achieving work-life integration and synergy. PMID:27443052

  5. Achieving Successful School-University Collaboration.

    ERIC Educational Resources Information Center

    Borthwick, Arlene C.; Stirling, Terry; Cook, Dale

    This study investigated participant perceptions of essential elements for establishing and maintaining successful school-university partnerships for school improvement, noting differences in perceptions of participants involved in voluntary partnerships versus those involved in partnerships required by the school district (schools placed on…

  6. Life history evolution: successes, limitations, and prospects.

    PubMed

    Stearns, S C

    2000-11-01

    Life history theory tries to explain how evolution designs organisms to achieve reproductive success. The design is a solution to an ecological problem posed by the environment and subject to constraints intrinsic to the organism. Work on life histories has expanded the role of phenotypes in evolutionary theory, extending the range of predictions from genetic patterns to whole-organism traits directly connected to fitness. Among the questions answered are the following: Why are organisms small or large? Why do they mature early or late? Why do they have few or many offspring? Why do they have a short or a long life? Why must they grow old and die? The classical approach to life histories was optimization; it has had some convincing empirical success. Recently non-equilibrium approaches involving frequency-dependence, density-dependence, evolutionary game theory, adaptive dynamics, and explicit population dynamics have supplanted optimization as the preferred approach. They have not yet had as much empirical success, but there are logical reasons to prefer them, and they may soon extend the impact of life history theory into population dynamics and interspecific interactions in coevolving communities. PMID:11151666

  7. Leadership Effects on Student Achievement and Sustained School Success

    ERIC Educational Resources Information Center

    Jacobson, Stephen

    2011-01-01

    Purpose: The purpose of this paper is to examine the effects of leadership on student achievement and sustained school success, especially in challenging, high-poverty schools. Design/methodology/approach: The paper combines a review of the leadership literature with findings drawn from longitudinal studies of the International Successful School…

  8. Helping Students Improve Academic Achievement and School Success Behavior

    ERIC Educational Resources Information Center

    Brigman, Greg; Campbell, Chari

    2003-01-01

    This article describes a study evaluating the impact of school-counselor-led interventions on student academic achievement and school success behavior. A group counseling and classroom guidance model called student success skills (SSS) was the primary intervention. The focus of the SSS model was on three sets of skills identified in several…

  9. Management Succession, School Socioeconomic Context, and Basic Skills Achievement.

    ERIC Educational Resources Information Center

    Rowan, Brian; Denk, Charles E.

    1984-01-01

    This study assessed the effects of a change in principals (management succession) on school level basic skills achievement using longitudinal data on 149 San Francisco Bay Area Schools. The findings indicate that changes can affect school achievement, but that leadership effects develop slowly and are conditioned by a schools' socioeconomic…

  10. Building Capability, Empowering Students, and Achieving Success: The Financial Empowerment for Student Success Initiative

    ERIC Educational Resources Information Center

    Broun, Dan

    2014-01-01

    The Financial Empowerment for Student Success (FESS) Initiative was a two-year initiative focused on increasing student success through the provision of financial services. Achieving the Dream, Inc. and MDC, Inc. joined together, with funding from the Bank of America Charitable Foundation, to support three Achieving the Dream Leader Colleges to…

  11. The Reading Success Intervention and the Relationship to Student Achievement

    ERIC Educational Resources Information Center

    Yudzentis, Jayne E.

    2012-01-01

    This quantitative, quasi-experimental study investigated the reading achievement of students at-risk of failure to learn to read. This study analyzed the effectiveness of the reading intervention program, Reading Success, which is used with at-risk first grade students in an elementary school district in DuPage County, Illinois. The Reading…

  12. An alternative approach to achieving water quality-based limits

    SciTech Connect

    Hart, C.M.; Graeser, W.C.

    1995-12-01

    Since May 1982, members of the Iron and Steel Industry have been required to meet effluent limits based on Best Available Technology (BAT) for a process water discharge to receiving stream. US Steel Clairton Works has been successful in meeting these limits in the last three years; however, the current regulatory thrust is toward more stringent limits based on water quality. In cases of smaller streams such as the receiving stream for Clairton Works` process outfall, these limits can be very rigid. This paper will discuss the alternative approaches investigated to meet the new more stringent limits including the solution chosen.

  13. Malaria in Turkey: successful control and strategies for achieving elimination.

    PubMed

    Özbilgina, Ahmet; Topluoglu, Seher; Es, Saffet; Islek, Elif; Mollahaliloglu, Salih; Erkoc, Yasin

    2011-01-01

    Turkey is located in the middle of Asia, Africa and Europe, close to Caucasia, Balkans and Middle East in subtropical climate zone. Malaria has been known since the early ages of human history and it was one of the leading diseases in Anatolian history, as well. Today, chloroquine-sensitive Plasmodium vivax is the only agent of autochthonous malaria cases in Turkey. The other Plasmodium species identified are isolated from imported cases of malaria. The most common vector of malaria in Turkey is Anopheles sacharovi followed by An. superpictus, An. maculipennis and An. subalpinus. In 2009, pre-elimination stage of Malaria Program was started due to dramatic decline in the number of malaria cases in Turkey (Total, 84; 38 autochthonous cases only in 26 foci in south-eastern Anatolia, and 46 imported cases; incidence: 0.1/100,000). As there were no detected cases of new autochthonous malaria in the first 8 months of 2010, elimination stage was started. The role of the persistent policies and successful applications of the Ministry of Health, such as the strict control of the patients using anti-malarial drugs especially chloroquine, avoidance of resistant insecticides, facilitation of access to patients via Health Transformation Program (HTP), establishment of close contact with the patients' families, and improvement of reporting and surveillance system, was essential. In addition, improvement maintained in the motivations and professional rights of malaria workers, as well in the coordination of field studies and maintenance of a decline or termination in vector-to-person transmission were all achieved with the insistent policies of the Ministry of Health. Other factors that probably contributed to elimination studies include lessening of military operations in south-eastern Anatolia and the lowering of malaria cases in neighbouring countries in recent years. Free access to health services concerning malaria is still successfully conducted throughout the country

  14. A Framework for Achieving e-Business Success

    ERIC Educational Resources Information Center

    Kumar, U.; Maheshwari, M.; Kumar, V.

    2004-01-01

    This paper presents the findings of an empirical study of critical factors associated with e-business success. An a priori model relating the success factors to e-business success is developed. The study uses the "balanced scorecard" methodology to measure the success of e-business organizations, as the authors believe that financial measures are…

  15. ALMA Achieves Major Milestone With Antenna-Link Success

    NASA Astrophysics Data System (ADS)

    2007-03-01

    The Atacama Large Millimeter/submillimeter Array (ALMA), an international telescope project, reached a major milestone on March 2, when two ALMA prototype antennas were first linked together as an integrated system to observe an astronomical object. The milestone achievement, technically termed "First Fringes," came at the ALMA Test Facility (ATF) on the grounds of the National Radio Astronomy Observatory's (NRAO) Very Large Array (VLA) radio telescope in New Mexico. NRAO is a facility of the National Science Foundation (NSF), managed by Associated Universities, Incorporated (AUI). AUI also is designated by NSF as the North American Executive for ALMA. ALMA Test Facility ALMA Test Facility, New Mexico: VertexRSI antenna, left; AEC antenna, right. CREDIT: Drew Medlin, NRAO/AUI/NSF Click on image for page of graphics and full information Faint radio waves emitted by the planet Saturn were collected by the two ALMA antennas, then processed by new, state-of-the-art electronics to turn the two antennas into a single, high-resolution telescope system, called an interferometer. Such pairs of antennas are the basic building blocks of multi-antenna imaging systems such as ALMA and the VLA. In such a system, each antenna is combined electronically with every other antenna to form a multitude of pairs. Each pair contributes unique information that is used to build a highly-detailed image of the astronomical object under observation. When completed in 2012, ALMA will have 66 antennas. The successful Saturn observation began at 7:13 p.m., U.S. Mountain Time Friday (0213 UTC Saturday). The planet's radio emissions at a frequency of 104 GigaHertz (GHz) were tracked by the ALMA system for more than an hour. "Our congratulations go to the dedicated team of scientists, engineers and technicians who produced this groundbreaking achievement for ALMA. Much hard work and many long hours went into this effort, and we appreciate it all. This team should be very proud today," said NRAO

  16. Success and Interactive Learning: Sailing toward Student Achievement

    ERIC Educational Resources Information Center

    Midcap, Richard; Seitzer, Joan; Holliday, Randy; Childs, Amy; Bowser, Dana

    2008-01-01

    Success and Interactive Learning's (SAIL) front-loaded retention activities and unique financial incentives have combined to improve retention, persistence, and success of first-time college students. Its effectiveness has been validated through a comparison of retention rates and aggregate quality-point averages of SAIL cohorts with those rates…

  17. Multiple Intelligences and Student Achievement: Success Stories from Six Schools.

    ERIC Educational Resources Information Center

    Campbell, Linda; Campbell, Bruce

    This book examines educational programs that have used multiple intelligences (MI) theory for 5 or more years, and addresses such questions as: "How have MI programs affected student achievement?" and "Where and how were those results achieved?" Six schools (two elementary, two middle-level, and two high schools), which serve a variety of student…

  18. Achieving succession planning and implementation: one healthcare network's story.

    PubMed

    Capuano, Terry Ann; MacKenzie, Richard

    2013-01-01

    Frequent transitions in leadership can cause inefficiency, inconsistency, and lack of alignment with priorities and strategy. Retaining management talent and collaboratively planning their succession can help ensure organizational survival. Succession planning, in healthcare and other industries, addresses some of these concerns; however, there is a dearth of descriptive articles emphasizing "how to." This article demonstrates one healthcare network's comprehensive system for succession planning and implementation. Leaders looking to plan their human resource processes for organizational sustainability would be able to emulate and adapt practices for their networks. PMID:24409581

  19. New Multicentury Evidence for Dispersal Limitation during Primary Succession.

    PubMed

    Makoto, K; Wilson, Scott D

    2016-06-01

    Primary succession is limited by both ecosystem development and plant dispersal, but the extent to which dispersal constrains succession over the long-term is unknown. We compared primary succession along two co-occurring arctic chronosequences with contrasting spatial scales: sorted circles that span a few meters and may have few dispersal constraints and glacial forelands that span several kilometers and may have greater dispersal constraints. Dispersal constraints slowed primary succession by centuries: plots were dominated by cryptogams after 20 years on circles but after 270 years on forelands; plots supported deciduous plants after 100 years on circles but after >400 years on forelands. Our study provides century-scale evidence suggesting that dispersal limitations constrain the rate of primary succession in glacial forelands. PMID:27172599

  20. Achieving Success: Perceptions of Students from Migrant Farmwork Families

    ERIC Educational Resources Information Center

    McHatton, Patricia Alvarez; Zalaquett, Carlos P.; Cranson-Gingras, Ann

    2006-01-01

    In their pursuit of an education, students from migrant farmworker families experience multiple challenges such as high mobility rates and a lack of curriculum alignment and credit transfer across local, state, and national boundaries. Despite these challenges, many of these students graduate from high school and successfully transition into…

  1. Achieving Success in Obtaining Grant Funding as a Research Scholar

    ERIC Educational Resources Information Center

    Cherubini, Lorenzo

    2014-01-01

    The process of writing successful grant proposals has received not so dubious attention in the last several decades. This article provides contextual significance resulting from a review of literature spanning 1975 to 2013. I identify essential vocabulary stemming from the literature review to familiarize the reader with the terminology associated…

  2. An Analysis of How Multicultural Adult Orphans Achieve Economic Success

    ERIC Educational Resources Information Center

    Simonee, Saundra W.

    2014-01-01

    Successful multicultural adult orphans who were not adopted pose an interesting challenge in their history, their physical, psychological, social emotional and personal identity development. One must understand their journey from orphanhood to adulthood and their current prominent status in life to build a contextualized personal story (Banks,…

  3. An Examination of the Impact of Successive and Non-Successive Geometry Classes on High School Student Achievement

    ERIC Educational Resources Information Center

    Sugg, Steven L.

    2012-01-01

    This study examines the impact of successive versus non-successive scheduling of mathematics courses on the achievement of ninth-grade students in a suburban Oregon high school. The Oregon Assessment of Knowledge and Skills and student performance on the geometry course final exam were employed to compare the achievement of intact groups of…

  4. Project Achievement: An After-School Success Story.

    ERIC Educational Resources Information Center

    Mercure, Christine M.

    1993-01-01

    To improve its school failure rate, a Virginia intermediate school instituted Project Achievement, a privately funded program helping at-risk students complete homework assignments. Structured into three one-hour sessions featuring tutoring, interdisciplinary study groups, and special activities, the project is immensely popular. During the summer…

  5. Reading First: Student Achievement, Teacher Empowerment, National Success

    ERIC Educational Resources Information Center

    US Department of Education, 2008

    2008-01-01

    This publication highlights the Reading First program as the academic cornerstone of the No Child Left Behind Act, and cites state achievement data indicating that Reading First students from nearly every grade and subgroup have made gains in reading proficiency. Restoration of full funding for the program has been requested for Fiscal Year 2009.

  6. Orchestrating ACO success: how top performers achieve shared savings.

    PubMed

    Harris, John M; Elizondo, Idette; Brown, Amanda M

    2016-03-01

    Leaders of the top-performing accountable care organizations in the Medicare Shared Savings Program attribute the success of their organizations in large part to seven strategies: Seek action-oriented leadership. Transform primary care physician practices. Keep patients out of the emergency department. Ensure all transitions are smooth. Make effective use of available data. Share information on physician performance. Keep patients engaged. PMID:27183758

  7. Achieving success with the silicone expander for overacting superior obliques.

    PubMed Central

    Pollard, Z F; Greenberg, M

    1999-01-01

    PURPOSE: To report the results of and complications with silicone expander surgery for the overacting superior oblique. METHODS: A total of 26 patients with bilateral overaction of the superior oblique and A-pattern strabismus and 5 patients with unilateral overacting superior oblique secondary to inferior oblique palsy were treated with a 7 mm silicone expander. Care was taken not to enter the sub-Tenon's space. RESULTS: The group that underwent bilateral superior oblique surgery had an average preoperative pattern of 37.42 diopters (D) and an average correction of 35.37 D. Three patients had a severe unilateral postoperative inflammatory incident that was successfully treated with oral and topical corticosteroids. One of these patient developed Brown's syndrome. Another patient, who had no postoperative inflammatory incident, also developed Brown's syndrome. In these 4 patients, the sub-Tenon's space was inadvertently entered during surgery. CONCLUSION: The silicone expander surgery has a very high success rate in treating the A-pattern associated with the bilateral overacting superior oblique. This procedure also works well for the unilateral superior oblique that overacts owing to an inferior oblique palsy. No cyclotorsion symptoms occurred after this surgery. However, 4 patients had complications because the sub-Tenon's space was exposed during surgery. With this procedure, there is a learning curve to obtain the skill not to enter the sub-Tenon's space. Images FIGURE 1 FIGURE 2 FIGURE 3 FIGURE 4 FIGURE 5 FIGURE 6 PMID:10703132

  8. Nutrigerontology: a key for achieving successful ageing and longevity.

    PubMed

    Aiello, Anna; Accardi, Giulia; Candore, Giuseppina; Carruba, Giuseppe; Davinelli, Sergio; Passarino, Giuseppe; Scapagnini, Giovanni; Vasto, Sonya; Caruso, Calogero

    2016-01-01

    During the last two centuries the average lifespan has increased at a rate of approximately 3 months/year in both sexes, hence oldest old people are becoming the population with the fastest growth in Western World. Although the average life expectancy is increasing dramatically, the healthy lifespan is not going at the same pace. This underscores the importance of studies on the prevention of age-related diseases, in order to satisfactorily decrease the medical, economic and social problems associated to advancing age, related to an increased number of individuals not autonomous and affected by invalidating pathologies. In particular, data from experimental studies in model organisms have consistently shown that nutrient signalling pathways are involved in longevity, affecting the prevalence of age-related loss of function, including age-related diseases. Accordingly, nutrigerontology is defined as the scientific discipline that studies the impact of nutrients, foods, macronutrient ratios, and diets on lifespan, ageing process, and age-related diseases. To discuss the potential relevance of this new science in the attainment of successful ageing and longevity, three original studies performed in Sicily with local foods and two reviews have been assembled in this series. Data clearly demonstrate the positive effects of nutraceuticals, functional foods and Mediterranean Diet on several biological parameters. In fact, they could represent a prevention for many age-related diseases, and, although not a solution for this social plague, at least a remedy to alleviate it. Thus, the possibility to create a dietary pattern, based on the combined strategy of the use of both nutraceuticals and functional foods should permit to create a new therapeutic strategy, based not only on a specific bioactive molecule or on a specific food but on a integrated approach that, starting from the local dietary habits, can be led to a "nutrafunctional diet" applicable worldwide. PMID

  9. Success stories in genomic medicine from resource-limited countries.

    PubMed

    Mitropoulos, Konstantinos; Al Jaibeji, Hayat; Forero, Diego A; Laissue, Paul; Wonkam, Ambroise; Lopez-Correa, Catalina; Mohamed, Zahurin; Chantratita, Wasun; Lee, Ming Ta Michael; Llerena, Adrian; Brand, Angela; Ali, Bassam R; Patrinos, George P

    2015-01-01

    In recent years, the translation of genomic discoveries into mainstream medical practice and public health has gained momentum, facilitated by the advent of new technologies. However, there are often major discrepancies in the pace of implementation of genomic medicine between developed and developing/resource-limited countries. The main reason does not only lie in the limitation of resources but also in the slow pace of adoption of the new findings and the poor understanding of the potential that this new discipline offers to rationalize medical diagnosis and treatment. Here, we present and critically discuss examples from the successful implementation of genomic medicine in resource-limited countries, focusing on pharmacogenomics, genome informatics, and public health genomics, emphasizing in the latter case genomic education, stakeholder analysis, and economics in pharmacogenomics. These examples can be considered as model cases and be readily replicated for the wide implementation of pharmacogenomics and genomic medicine in other resource-limited environments. PMID:26081768

  10. Patients' Perceptions of the Causes of Their Success and Lack of Success in Achieving Their Potential in Spinal Cord Rehabilitation

    ERIC Educational Resources Information Center

    Belciug, Marian P.

    2012-01-01

    The objective of this study was to examine the patients' perception of the causes of their success and lack of success in achieving their potential in rehabilitation and their emotional reactions to the outcome of their rehabilitation. Thirty-five patients with spinal cord injury who were participating in the Rehabilitation Program at Hamilton…

  11. The Achievement Gap: Factors That Influenced the Achievement of Successful Black Students

    ERIC Educational Resources Information Center

    Morton, Kwame R., Sr.

    2011-01-01

    The academic underperformance of Black students when compared to their White peers has confounded educators nationwide. This discrepancy in academic performance commonly referred to as the achievement gap has become a national crisis which has led to one of the most significant educational reforms undertaken in the United States of America in the…

  12. Limits to Success. The Iron Law of Verhulst

    NASA Astrophysics Data System (ADS)

    Kunsch, P. L.

    In this chapter we develop the point of view that Verhulst is a major initiator of systems thinking. His logistic equation is a system archetype, i.e. a simple system built with few feedback loops. In the Fifth Discipline [19] Peter Senge calls this particular archetype "Limits to Success". It can also be called the "Iron law of Verhulst", expressing that trees can never grow to heaven. In a deeper analysis this equation illustrates the shifting loop dominance, one of the basic principles of system dynamics. The basic message is that the combination of some few archetypes, like the logistic growth, can afford valuable insight into many complex systems such as the economy, environment, organisations, etc. This fruitful concept is illustrated by a simple model in behavioural finance describing the equity price evolution, and based on the interplay of three main growth archetypes: "Limits to Success", "Tragedy of the Commons", and "Balancing Loop with Delay".

  13. The Texas Successful Schools Study: Quality Education for Limited English Proficient Students.

    ERIC Educational Resources Information Center

    Texas Education Agency, Austin.

    A study by the Texas Education Agency examined the variables contributing to the academic success of economically disadvantaged and language minority students. Data were collected from seven high-achieving elementary schools with high poverty rates and high percentages of limited English proficient (LEP) students via teacher questionnaires;…

  14. Limitations to Reproductive Success in the Dioecious Tree Rhamnus davurica

    PubMed Central

    Wang, Juan; Zhang, Chunyu; Zhao, Xiuhai; Gadow, Klaus V.

    2013-01-01

    The reproductive success of a female plant in a dioecious species may be affected by pollen limitation and resource limitation. This study presents evidence that the reproductive success of the dioecious understorey tree species, Rhamnus davurica, is affected by the distance to the nearest male. The sex ratios were female-biased, although showing fluctuations in the three years of conducting the study. The mortality rate of females was higher than that of males indicating a trade-off between reproduction and survival. Altogether 49 females, designated as “focal females”, were randomly selected for monitoring their reproductive status between April and October in 2010. But successful reproduction (meaning that the flowering female trees had fruit in the fruiting season) was observed only in 28 females in 2011 and 16 females in 2012. The method of path analysis was applied to determine the effect of topography, local competition and proximity to the nearest male on the fruit set of the females. In the three years of the study, elevation, competition and female size had no significant effect on the fruit set. The distance to the nearest male, however, had a significant effect on fruit set. Number of fruits and fruit set were decreased with increasing distance to the nearest male. It was possible to estimate maximum fruit set, based on the comparatively large dataset. The number of fruits and the fruit set are exponentially related to the distance to the nearest male and the relationships are described by an exponential model. The results of this study support the importance of pollen limitation on the reproductive success in Rhamnus davurica. PMID:24324665

  15. IT Project Success w\\7120 and 7123 NPRs to Achieve Project Success

    NASA Technical Reports Server (NTRS)

    Walley, Tina L.

    2009-01-01

    This slide presentation reviews management techniques to assure information technology development project success. Details include the work products, the work breakdown structure (WBS), system integration, verification and validation (IV&V), and deployment and operations. An example, the NASA Consolidated Active Directory (NCAD), is reviewed.

  16. Using Achieving the Dream to Meet Accreditation Requirements. Principles and Practices of Student Success

    ERIC Educational Resources Information Center

    Manning, Terri Mulkins

    2009-01-01

    The fundamental concepts of Achieving the Dream--using evidence to develop and evaluate strategies for improving student learning and success--are also important to successful efforts to meet accreditation requirements. Following the Achieving the Dream approach can help community colleges organize and document improvement efforts in ways that are…

  17. Pollinator limitation on reproductive success in Iris tuberosa.

    PubMed

    Pellegrino, Giuseppe

    2014-01-01

    Variation in plant and floral size can have conflicting effects on pollination and fruit production in flowering plants. This research examines the contributions of plant height, flower size and pollinator visitation to reproductive success in four populations of Iris tuberosa. The plants were pollinated exclusively by hymenopteran species, primarily during sunny days. Pollination supplementation increased the proportion of flowers that matured into fruit, with 95 % fruit set for hand-pollinated compared with 74.15 % for naturally pollinated flowers. The pollinator visitation rate and the proportion of fruit produced were not significantly different between tall and short plants or between small and large flowers. Furthermore, the increase in plant size and floral display did not increase the frequency of pollinator visitations and so did not increase the fruit set. Thus, despite the widespread effects of flowering plant size on pollinator attraction and plant reproduction in other species, these effects are lacking in I. tuberosa. This study quantifies the role of pollinators in the reproductive success of I. tuberosa. Pollinators visited tall/short plants and large/small flowers in equal proportion, suggesting that plant and floral display size do not affect pollinator attraction and reproductive success in I. tuberosa. These results suggest that sexual reproduction of I. tuberosa is fairly limited by pollinators and not by resource limitation. PMID:25527476

  18. Engaging Faculty in the Achieving the Dream Initiative. Principles and Practices of Student Success

    ERIC Educational Resources Information Center

    Birnback, Lara; Friedman, Will

    2009-01-01

    Stakeholder engagement is critical to the success of Achieving the Dream. Broad-based support for the college's student success agenda and institutional change efforts requires engaging faculty, staff, students, community members, and others in the change process. These stakeholders can bring to light critical obstacles to student success and help…

  19. Explanations for Success and Failure by Low and Average School Achievers.

    ERIC Educational Resources Information Center

    Bond, Lynne A.; Johnson, Jeannette L.

    Low and average school achievers in grades 1 and 2 and grades 4 and 5 made attributions for successes and failures on school related and unrelated tasks. Students in the low achievement group were participants of the Title I program, and tested a year below their age-mates on reading and math achievement. Students were given two booklets of four…

  20. Why achievement motivation predicts success in business but failure in politics: the importance of personal control.

    PubMed

    Winter, David G

    2010-12-01

    Several decades of research have established that implicit achievement motivation (n Achievement) is associated with success in business, particularly in entrepreneurial or sales roles. However, several political psychology studies have shown that achievement motivation is not associated with success in politics; rather, implicit power motivation often predicts political success. Having versus lacking control may be a key difference between business and politics. Case studies suggest that achievement-motivated U.S. presidents and other world leaders often become frustrated and thereby fail because of lack of control, whereas power-motivated presidents develop ways to work with this inherent feature of politics. A reevaluation of previous research suggests that, in fact, relationships between achievement motivation and business success only occur when control is high. The theme of control is also prominent in the development of achievement motivation. Cross-national data are also consistent with this analysis: In democratic industrialized countries, national levels of achievement motivation are associated with strong executive control. In countries with low opportunity for education (thus fewer opportunities to develop a sense of personal control), achievement motivation is associated with internal violence. Many of these manifestations of frustrated achievement motivation in politics resemble authoritarianism. This conclusion is tested by data from a longitudinal study of 113 male college students, showing that high initial achievement motivation combined with frustrated desires for control is related to increases in authoritarianism (F-scale scores) during the college years. Implications for the psychology of leadership and practical politics are discussed. PMID:21039527

  1. Creating Effective Board-CEO Relationships and Fundraising to Achieve Successful Student Outcomes

    ERIC Educational Resources Information Center

    White, Frances L.

    2011-01-01

    More and more accountability and successful educational outcomes are being demanded of colleges. Achieving successful outcomes requires strong and courageous leadership at all levels of the institution, but getting the faculty to improve teaching and learning outcomes very often requires a president/chief executive officer (CEO) who not only…

  2. The Impact of Reading Success Academy on High School Reading Achievement

    ERIC Educational Resources Information Center

    Burlison, Kelly; Chave, Josh

    2014-01-01

    The study explores the effectiveness of the Reading Success Academy on the reading achievement of the selected group of ninth-grade students in a comprehensive high school. We examine in what ways the Reading Success Academy may improve the reading proficiency rates and amount of reading growth of ninth-grade students. The results indicate that…

  3. The Impact of Achievement Press on Student Success in Elementary Schools

    ERIC Educational Resources Information Center

    Smith, Page A.; Kearney, W. Sean

    2013-01-01

    Purpose: The purpose of this study is to examine the relative impact of achievement press on student success in elementary schools in the Southwestern USA. Design/methodology/approach: Data from individual teacher assessments and student achievement tests are collected and aggregated at the campus level. Hierarchical linear modeling is utilized to…

  4. Arts Achieve, Impacting Student Success in the Arts: Preliminary Findings after One Year of Implementation

    ERIC Educational Resources Information Center

    Mastrorilli, Tara M.; Harnett, Susanne; Zhu, Jing

    2014-01-01

    The "Arts Achieve: Impacting Student Success in the Arts" project involves a partnership between the New York City Department of Education (NYCDOE) and five of the city's premier arts organizations. "Arts Achieve" provides intensive and targeted professional development to arts teachers over a three-year period. The goal…

  5. Relationship between Achievement Goals, Meta-Cognition and Academic Success in Pakistan

    ERIC Educational Resources Information Center

    Sarwar, Muhammad; Yousuf, Muhammad Imran; Hussain, Shafqat; Noreen, Shumaila

    2009-01-01

    The research was the replication of the study done by Coutinho (2006) and it aimed at finding the relationship between achievement goals, meta-cognition and academic success. Achievement goals were further divided into two types: mastery and performance. The participants were 119 students enrolled in M. A. Education, Department of Education at the…

  6. Achievements and Limitations of Evidence-Based Medicine.

    PubMed

    Sheridan, Desmond J; Julian, Desmond G

    2016-07-12

    Evidence-based medicine (EBM) has a long history, but was revived in the early 1990s by a campaign mounted by a movement that took its name. The EBM movement focused attention on the need for greater objectivity in medical decision-making and led to the Cochrane Collaboration, which provides reviews of evidence on the basis of comparative research. Important limitations of EBM's effect on medicine have also emerged. Failure to acknowledge the limitations of clinical trials and systematic reviews has limited their applicability to individual patients' circumstances. An almost exclusive focus on drugs and devices has left vast areas of health care in an evidence vacuum. An overdependence on commissions for its research may have limited its independence in selecting what it investigates. EBM needs to widen its scope beyond drugs and devices to address many areas that often lack evidence at present, notably, health policy, management, and reforms. PMID:27386775

  7. Pushing the Limits: Achieving Superior Arabic Fluency in America

    ERIC Educational Resources Information Center

    Beaty, Kevin James

    2008-01-01

    This study investigates the current situation of Arabic education in the United States with an overarching question of, "What is the best way for a student of Arabic in the United States to achieve Superior proficiency?" This study focuses on two elite institutions of Arabic education in the United States. This study is based on 3 sources of…

  8. Achieving the physical limits of the bounded-storage model

    SciTech Connect

    Mandayam, Prabha; Wehner, Stephanie

    2011-02-15

    Secure two-party cryptography is possible if the adversary's quantum storage device suffers imperfections. For example, security can be achieved if the adversary can store strictly less then half of the qubits transmitted during the protocol. This special case is known as the bounded-storage model, and it has long been an open question whether security can still be achieved if the adversary's storage were any larger. Here, we answer this question positively and demonstrate a two-party protocol which is secure as long as the adversary cannot store even a small fraction of the transmitted pulses. We also show that security can be extended to a larger class of noisy quantum memories.

  9. Superconcentration of light: circumventing the classical limit to achievable irradiance.

    PubMed

    Roth, Stephan; Sheppard, Colin J R; Heintzmann, Rainer

    2016-05-01

    Concentration of light is limited by a fundamental physical principle, which ensures that étendue, the product of area and solid angle, can never decrease in an optical system. In microscopy, many superresolving methods, which can overcome the classical resolution limit, have recently emerged. We propose, and demonstrate experimentally, that it is also possible to circumvent the classical light concentration limit. Actually, most superresolution methods exhibit a common drawback: with respect to the total number of emitted photons, they are less efficient than standard widefield microscopy. Most methods "shave"' the point spread function (PSF) by discarding the disturbing signal from its edge. We show, that in contrast to PSF-shaving, methods related to reassignment microscopy (image scanning microscopy, optical photon reassignment, rescan confocal, instant structured illumination microscopy) concentrate all detected photons in their superresolving images and thereby increase the detected signal per sample area compared to widefield microsopy. We term this behavior superconcentration, as it breaks the classical light concentration limit. PMID:27128086

  10. Successes and limitations of targeted cancer therapy in lung cancer.

    PubMed

    Suda, Kenichi; Mitsudomi, Tetsuya

    2014-01-01

    Human cancers usually evolve through multistep processes. These processes are driven by the accumulation of abundant genetic and epigenetic abnormalities. However, some lung cancers depend on a single activated oncogene by somatic mutation, termed 'driver oncogenic mutations', for their proliferation and survival. EGFR(epidermal growth factor receptor) mutations and ALK(anaplastic lymphoma kinase) rearrangement are typical examples of such driver oncogenic mutations found in lung adenocarcinomas. EGFR-tyrosine kinase inhibitors (TKIs) or ALK-TKIs significantly improved treatment outcomes compared with conventional cytotoxic chemotherapy in patients with lung cancers harboring EGFR mutations or ALK rearrangement, respectively. Therefore, treatment strategies for lung cancers have dramatically changed from a 'general and empiric' to a 'personalized and evidence-based' approach according to the driver oncogenic mutation. Several novel driver oncogenic mutations, which are candidates as novel targets, such as ERBB2, BRAF, ROS1, and RET, have been discovered. Despite these successes, several limitations have arisen. One example is that some lung cancers do not respond to treatments targeting driver oncogenic mutations, as exemplified in KRAS-mutated lung cancers. Another is resistance to molecular-targeted drugs. Such resistance includes de novo resistance and acquired resistance. A number of molecular mechanisms underlying such resistance have been reported. These mechanisms can be roughly divided into three categories: alteration of the targeted oncogenes themselves by secondary mutations or amplification, activation of an alternative oncogenic signaling track, and conversion of cellular characteristics. Overcoming resistance is a current area of urgent clinical research. PMID:24727987

  11. Controlling open quantum systems: tools, achievements, and limitations

    NASA Astrophysics Data System (ADS)

    Koch, Christiane P.

    2016-06-01

    The advent of quantum devices, which exploit the two essential elements of quantum physics, coherence and entanglement, has sparked renewed interest in the control of open quantum systems. Successful implementations face the challenge of preserving relevant nonclassical features at the level of device operation. A major obstacle is decoherence, which is caused by interaction with the environment. Optimal control theory is a tool that can be used to identify control strategies in the presence of decoherence. Here we review recent advances in optimal control methodology that allow typical tasks in device operation for open quantum systems to be tackled and discuss examples of relaxation-optimized dynamics. Optimal control theory is also a useful tool to exploit the environment for control. We discuss examples and point out possible future extensions.

  12. Controlling open quantum systems: tools, achievements, and limitations.

    PubMed

    Koch, Christiane P

    2016-06-01

    The advent of quantum devices, which exploit the two essential elements of quantum physics, coherence and entanglement, has sparked renewed interest in the control of open quantum systems. Successful implementations face the challenge of preserving relevant nonclassical features at the level of device operation. A major obstacle is decoherence, which is caused by interaction with the environment. Optimal control theory is a tool that can be used to identify control strategies in the presence of decoherence. Here we review recent advances in optimal control methodology that allow typical tasks in device operation for open quantum systems to be tackled and discuss examples of relaxation-optimized dynamics. Optimal control theory is also a useful tool to exploit the environment for control. We discuss examples and point out possible future extensions. PMID:27143501

  13. Advances in genetics and genomics: use and limitations in achieving malaria elimination goals

    PubMed Central

    Gunawardena, Sharmini; Karunaweera, Nadira D.

    2015-01-01

    Success of the global research agenda towards eradication of malaria will depend on the development of new tools, including drugs, vaccines, insecticides and diagnostics. Genetic and genomic information now available for the malaria parasites, their mosquito vectors and human host, can be harnessed to both develop these tools and monitor their effectiveness. Here we review and provide specific examples of current technological advances and how these genetic and genomic tools have increased our knowledge of host, parasite and vector biology in relation to malaria elimination and in turn enhanced the potential to reach that goal. We then discuss limitations of these tools and future prospects for the successful achievement of global malaria elimination goals. PMID:25943157

  14. Closing the Math Achievement Gap: Institutions Find Success with MyMathLab

    ERIC Educational Resources Information Center

    Stewart, Pearl

    2012-01-01

    Institutions find success with Pearson Education's MyMathLab. The Department of Mathematical Sciences at the University of Memphis (UM) reported a narrowing of the achievement gap between Black and White students. According to the study conducted by UM professors and titled "The Effectiveness of Blended Instruction in Postsecondary General…

  15. Reading for Success: The Effectiveness of Literacy Interventions for Increasing Student Achievement in Core Academic Classes

    ERIC Educational Resources Information Center

    Harrell, Margaret A.

    2014-01-01

    The purpose of this action research study was to utilize quantitative and qualitative data to measure the effects of Tier 2 and Tier 3 literacy interventions as they affect student achievement in the secondary school setting. The research questions addressed performance of students who were enrolled in Reading for Success as compared to a cohort…

  16. The Influence of Achievement Motivation, Success, and Intended Effort on Behavioral Intensity.

    ERIC Educational Resources Information Center

    Latta, R. Michael

    Two experiments were designed to test Kukla's cognitive theory of task performance, based on intended effort. Experiment I was designed to determine if success feedback leads to an overall increase in performance level and differential asymptotic performance for those high and low in achievement motivation. Experiment 2 was aimed at determining if…

  17. Success in Higher Education: The Challenge to Achieve Academic Standing and Social Position

    ERIC Educational Resources Information Center

    Life, James

    2015-01-01

    When students look at their classmates in the classroom, consciously or unconsciously, they see competitors both for academic recognition and social success. How do they fit in relation to others and how do they succeed in achieving both? Traditional views on the drive to succeed and the fear of failure are well known as motivators for achieving…

  18. Collaborating with Parents for Early School Success: The Achieving-Behaving-Caring Program

    ERIC Educational Resources Information Center

    McConaughy, Stephanie H.; Kay, Pam; Welkowitz, Julie A.; Hewitt, Kim; Fitzgerald, Martha D.

    2007-01-01

    The Achieving-Behaving-Caring (ABC) Program is an evidence-based approach to addressing the needs of elementary students at risk for emotional and behavioral difficulties and promoting successful home-school collaboration. This practical guide demonstrates how classroom teachers and parents can work together to boost individual children's…

  19. Indicators of Success in Achieving the El Centro College Goals, 1997-2000.

    ERIC Educational Resources Information Center

    El Centro Coll., Dallas, TX.

    This is a report on indicators of success in achieving community college goals at El Centro College (Texas). The report provides statistics from 1997-2000 and focuses on the progress of nine goals: (1) institutionalizing service beyond expectation--according to student satisfaction surveys, campus changes that have occurred between 1996 and 1999…

  20. Developing a Latino Mentoring Program: Project MALES (Mentoring to Achieve Latino Educational Success)

    ERIC Educational Resources Information Center

    Sáenz, Victor B.; Ponjuan, Luis; Segovia, Jorge, Jr.; Del Real Viramontes, José

    2015-01-01

    This chapter highlights the development of Project MALES (Mentoring to Achieve Latino Educational Success). At the center of Project MALES is a mentoring program that aims to cultivate an engaged support network for males of color at the University of Texas at Austin and across surrounding communities. Specifically, there is a discussion of the…

  1. High School Success: An Effective Intervention for Achievement and Dropout Prevention

    ERIC Educational Resources Information Center

    Lowder, Christopher Michael

    2012-01-01

    The purpose of this mixed-design study was to use quantitative and qualitative research to explore the effects of High School Success (a course for at-risk ninth graders) and its effectiveness on student achievement, attendance, and dropout prevention. The research questions address whether there is a significant difference between at-risk ninth…

  2. Student Success Skills: An Evidence-Based Cognitive and Social Change Theory for Student Achievement

    ERIC Educational Resources Information Center

    Lemberger, Matthew E.; Brigman, Greg; Webb, Linda; Moore, Molly M.

    2012-01-01

    An overview of the Student Success Skills program is offered, including descriptions of the curricular structure, extant research support related to SSS effectiveness for academic achievement and improved school behaviors, and a theory of change for student development. Recent research has demonstrated the value of the SSS program as it connects…

  3. Achieving Higher Levels of Success for A.D.H.D. Students Working in Collaborative Groups

    ERIC Educational Resources Information Center

    Simplicio, Joseph S. C.

    2007-01-01

    This article explores a new and innovative strategy for helping students with Attention Deficit Hyperactivity Disorder (A.D.H.D.) achieve higher levels of academic success when working in collaborative groups. Since the research indicates that students with this disorder often have difficulty in maintaining their concentration this strategy is…

  4. Courageous Conversations: Achieving the Dream and the Importance of Student Success

    ERIC Educational Resources Information Center

    Change: The Magazine of Higher Learning, 2009

    2009-01-01

    Achieving the Dream: Community Colleges Count is a national initiative dedicated to the premise that community colleges should be as successful at student retention and graduation, particularly for students of color and low-income, as they are at enrollment. On campus, the initiative is focused on creating a culture of evidence, one in which data…

  5. The Achieving Success Everyday Group Counseling Model: Fostering Resiliency in Middle School Students

    ERIC Educational Resources Information Center

    Rose, Joy; Steen, Sam

    2015-01-01

    This article discusses a group counseling intervention used to develop and foster resiliency in middle school students by implementing the Achieving Success Everyday (ASE) group counseling model. The authors aimed to discover what impact this group counseling intervention, which focused on resiliency characteristics, would have on students'…

  6. The Achieving Success Everyday Group Counseling Model: Implications for Professional School Counselors

    ERIC Educational Resources Information Center

    Steen, Sam; Henfield, Malik S.; Booker, Beverly

    2014-01-01

    This article presents the Achieving Success Everyday (ASE) group counseling model, which is designed to help school counselors integrate students' academic and personal-social development into their group work. We first describe this group model in detail and then offer one case example of a middle school counselor using the ASE model to…

  7. Gender and Achievement: Are Girls the "Success Stories" of Restructured Education Systems?

    ERIC Educational Resources Information Center

    Skelton, Christine

    2010-01-01

    There is a popular perception that girls' academic success means that they have taken up the kinds of gender performances in the classroom previously associated with boys. However, research into classrooms show that, amongst even the highest achieving pupils, girls are anxious about doing well and concerned about their relationships with other…

  8. Effects of Mastery Learning Strategies on Community College Mathematics Students' Achievement and Success Rate.

    ERIC Educational Resources Information Center

    Abadir, Laila; And Others

    The effects of mastery learning strategies, interactive video mathematics (IVM), individualized instruction (IND), and the lecture method on mathematics achievement of community college students was studied. Interactions among instructional methods, gender, and age were examined; and the grade success rate was determined for each instructional…

  9. Success Despite Socioeconomics: A Case Study of a High-Achieving, High-Poverty School

    ERIC Educational Resources Information Center

    Tilley, Thomas Brent; Smith, Samuel J.; Claxton, Russell L.

    2012-01-01

    This case study of a high-achieving, high-poverty school describes the school's leadership, culture, and programs that contributed to its success. Data were collected from two surveys (the School Culture Survey and the Vanderbilt Assessment of Leadership in Education), observations at the school site, and interviews with school personnel. The…

  10. Qualitative research study of high-achieving females' life experiences impacting success

    NASA Astrophysics Data System (ADS)

    Butcher, Ann Patrice

    2003-07-01

    This qualitative study investigated the life experiences of five academically gifted female students in math and science in reflection of their elementary learning prior to enrollment at a prestigious science and mathematics high school. The elite high school limits admission to the state of Illinois' top students. The purpose of this study is to unfold the story of five academically gifted females in attendance at the elite high school reflecting on their life experiences in elementary school that contributed to their current academic success. Twelve female students, who at the time of this study were currently in their senior year (12th grade) of high school, were solicited from the top academic groups who are regarded by their teachers as highly successful in class. Students were selected as part of the study based on academic status, survey completion and interest in study, Caucasian and Asian ethnicity, locale of elementary school with preference given to the variety of school demographics---urban, suburban, and rural---further defined the group to the core group of five. All female participants were personally interviewed and communicated via Internet with the researcher. Parents and teachers completing surveys as well met the methodological requirements of triangulation. An emergent theme of paternal influence came from the research. Implications supported in the research drawn from this study to increase achievement of academically gifted females include: (a) proper early identification of learner strengths plays a role; (b) learning with appropriate intellectual peers is more important than learning with their age group; (c) teachers are the greatest force for excellent instruction; (d) effective teaching strategies include cooperative learning, multi-sensory learning, problem-based learning, and hands-on science; (e) rigor in math is important; (f) gender and stereotypes need not be barriers; (g) outside interests and activities are important for self

  11. Achieving professional success in US government, academia, and industry: an EMGS commentary.

    PubMed

    Poirier, Miriam C; Schwartz, Jeffrey L; Aardema, Marilyn J

    2014-08-01

    One of the goals of the EMGS is to help members achieve professional success in the fields they have trained in. Today, there is greater competition for jobs in genetic toxicology, genomics, and basic research than ever before. In addition, job security and the ability to advance in one's career is challenging, regardless of whether one works in a regulatory, academic, or industry environment. At the EMGS Annual Meeting in Monterey, CA (September, 2013), the Women in EMGS Special Interest Group held a workshop to discuss strategies for achieving professional success. Presentations were given by three speakers, each representing a different employment environment: Government (Miriam C. Poirier), Academia (Jeffrey L. Schwartz), and Industry (Marilyn J. Aardema). Although some differences in factors or traits affecting success in the three employment sectors were noted by each of the speakers, common factors considered important for advancement included networking, seeking out mentors, and developing exceptional communication skills. PMID:24788591

  12. Visions of success and achievement in recreation-related USDA Forest Service NEPA processes

    SciTech Connect

    Stern, Marc J.; Blahna, Dale J.; Cerveny, Lee K.; Mortimer, Michael J.

    2009-07-15

    The National Environmental Policy Act (NEPA) is incorporated into the planning and decision-making culture of all natural resource agencies in the U.S. Yet, we know little about how the attitudes and internal interactions of interdisciplinary (ID) teams engaged in NEPA processes influence process outcomes. We conducted a web-based survey of 106 ID team leaders involved with environmental analyses (EA) or environmental impact statements (EIS) for projects dealing with recreation and travel management on national forests. We explore how they define success in these processes and identify factors most powerfully associated with perceptions of positive outcomes. The survey revealed a tremendous diversity in definitions of success. Strong correlations between the perceived importance of particular indicators of success and their achievement suggest that pre-conceived notions may often help to shape process outcomes. Regression analyses revealed the following factors as the best predictors of ID team leaders' perception of an 'excellent outcome': achievement of the agency mission, whether compromise had taken place between the interested parties, team satisfaction and harmony, timely process completion, and project implementation. Yet, respondents consistently ranked compromise with interested parties and team member satisfaction among the least important measures of successful NEPA processes. Results suggest that clarifying appropriate measures of success in NEPA processes across the agency could make ID team performance more consistent. The research also suggests that greater attention to ID team interactions, both internally and between teams and interested publics, could result in better outcomes.

  13. Pregnancy in end-stage renal disease patients on dialysis: how to achieve a successful delivery

    PubMed Central

    Manisco, Gianfranco; Potì’, Marcello; Maggiulli, Giuseppe; Di Tullio, Massimo; Losappio, Vincenzo; Vernaglione, Luigi

    2015-01-01

    Pregnancy in women with chronic kidney disease has always been considered as a challenging event both for the mother and the fetus. Over the years, several improvements have been achieved in the outcome of pregnant chronic renal patients with increasing rates of successful deliveries. To date, evidence suggests that the stage of renal failure is the main predictive factor of worsening residual kidney function and complications in pregnant women. Moreover, the possibility of success of the pregnancy depends on adequate depurative and pharmacological strategies in patients with end-stage renal disease. In this paper, we propose a review of the current literature about this topic presenting our experience as well. PMID:26034591

  14. Do Children's Behavior Problems Limit Poor Women's Labor Market Success?

    ERIC Educational Resources Information Center

    Coley, Rebekah Levine; Ribar, David; Votruba-Drzal, Elizabeth

    2011-01-01

    Economically disadvantaged mothers face numerous barriers to stable, quality employment opportunities. One barrier that has received limited attention in previous research is having a child with significant psychological or behavioral problems. Using a representative sample of low-income mothers and early adolescent children from the Three-City…

  15. Parental Involvement and Adolescents' Educational Success: The Roles of Prior Achievement and Socioeconomic Status.

    PubMed

    Benner, Aprile D; Boyle, Alaina E; Sadler, Sydney

    2016-06-01

    Parental educational involvement in primary and secondary school is strongly linked to students' academic success; however; less is known about the long-term effects of parental involvement. In this study, we investigated the associations between four aspects of parents' educational involvement (i.e., home- and school-based involvement, educational expectations, academic advice) and young people's proximal (i.e., grades) and distal academic outcomes (i.e., educational attainment). Attention was also placed on whether these relations varied as a function of family socioeconomic status or adolescents' prior achievement. The data were drawn from 15,240 10th grade students (50 % females; 57 % White, 13 % African American, 15 % Latino, 9 % Asian American, and 6 % other race/ethnicity) participating in the Education Longitudinal Study of 2002. We observed significant links between both school-based involvement and parental educational expectations and adolescents' cumulative high school grades and educational attainment. Moderation analyses revealed that school-based involvement seemed to be particularly beneficial for more disadvantaged youth (i.e., those from low-SES families, those with poorer prior achievement), whereas parents' academic socialization seemed to better promote the academic success of more advantaged youth (i.e., those from high-SES families, those with higher prior achievement). These findings suggest that academic interventions and supports could be carefully targeted to better support the educational success of all young people. PMID:26847424

  16. 40 CFR 450.22 - Effluent limitations reflecting the best available technology economically achievable (BAT).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... limitations reflecting the best available technology economically achievable (BAT). Except as provided in 40 CFR 125.30 through 125.32, any point source subject to this subpart must achieve, at a minimum, the... best available technology economically achievable (BAT). 450.22 Section 450.22 Protection...

  17. 40 CFR 450.22 - Effluent limitations reflecting the best available technology economically achievable (BAT).

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Effluent limitations reflecting the best available technology economically achievable (BAT). Except as provided in 40 CFR 125.30 through 125.32, any point source subject to this subpart must achieve, at a... best available technology economically achievable (BAT). 450.22 Section 450.22 Protection...

  18. 40 CFR 450.22 - Effluent limitations reflecting the best available technology economically achievable (BAT).

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... limitations reflecting the best available technology economically achievable (BAT). Except as provided in 40 CFR 125.30 through 125.32, any point source subject to this subpart must achieve, at a minimum, the... best available technology economically achievable (BAT). 450.22 Section 450.22 Protection...

  19. 40 CFR 450.22 - Effluent limitations reflecting the best available technology economically achievable (BAT).

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Effluent limitations reflecting the best available technology economically achievable (BAT). Except as provided in 40 CFR 125.30 through 125.32, any point source subject to this subpart must achieve, at a... best available technology economically achievable (BAT). 450.22 Section 450.22 Protection...

  20. 40 CFR 450.22 - Effluent limitations reflecting the best available technology economically achievable (BAT).

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Effluent limitations reflecting the best available technology economically achievable (BAT). Except as provided in 40 CFR 125.30 through 125.32, any point source subject to this subpart must achieve, at a... best available technology economically achievable (BAT). 450.22 Section 450.22 Protection...

  1. Monoclonal Antibodies in Cancer Therapy: Mechanisms, Successes and Limitations

    PubMed Central

    Coulson, A; Levy, A; Gossell-Williams, M

    2014-01-01

    ABSTRACT Rituximab was the first chemotherapeutic monoclonal antibody (CmAb) approved for clinical use in cancer therapeutics in 1997 and has significantly improved the clinical outcomes in non-Hodgkin's lymphoma. Since then, numerous CmAbs have been developed and approved for the treatment of various haematologic and solid human cancers. In this review, the classification, efficacy and significantly reduced toxicity of CmAbs available for use in the United States of America are presented. Finally, the limitations of CmAbs and future considerations are explored. PMID:25803383

  2. A Mentoring Program to Help Junior Faculty Members Achieve Scholarship Success

    PubMed Central

    2014-01-01

    The University of North Carolina Eshelman School of Pharmacy launched the Bill and Karen Campbell Faculty Mentoring Program (CMP) in 2006 to support scholarship-intensive junior faculty members. This report describes the origin, expectations, principles, and best practices that led to the introduction of the program, reviews the operational methods chosen for its implementation, provides information about its successes, and analyzes its strengths and limitations. PMID:24672062

  3. Stories of Success: Understanding Academic Achievement of Hispanic Students in Science

    NASA Astrophysics Data System (ADS)

    Harris, Amanda

    A review of the literature shows that there is much evidence to suggest the challenges facing Hispanic students in American public schools. Hispanic enrollment in K--12 public schools has increased from 6 to 19% in the last thirty years, yet schools have not made adequate adjustments to accommodate this changing population. Issues such as remedial tracking and cultural differences have led to low high school graduate rates for Hispanic students and inequities in schooling experiences (Gay, 2000). Particularly in the area of science, Hispanic students struggle with academic success (Cole & Espinoza, 2008). Despite these obstacles, some Hispanic students are academically successful (Rochin & Mello, 2007; Merisotis & Kee, 2006). This dissertation tells the stories of these Hispanic students who have been successful in science in secondary public schools. This study followed a grounded theory methodology and utilized individual interviews to collect data about Hispanics who have demonstrated achievement in the area of science. Through the analysis of these interviews, factors were identified which may have contributed to the success of these Hispanics in the field of science. Implications for future practice in public schools are also discussed.

  4. Counselor Trainee Achievement Goal Orientation and the Acquisition of Time-Limited Dynamic Psychotherapy Skills.

    ERIC Educational Resources Information Center

    Kivlighan, Dennis M., Jr.; Schuetz, Steven A.; Kardash, CarolAnne M.

    1998-01-01

    The relationship between trainee achievement goal orientation and acquisition of Time-Limited Dynamic Psychotherapy (TLDP) skills was examined over four counseling sessions with a recruited client. Trainee learning goal orientation was related to the pattern of TLDP skill acquisition. Approaches to achievement goals, results, training issues, and…

  5. Listening to the Student Voice: Understanding the School-Related Factors that Limit Student Success

    ERIC Educational Resources Information Center

    Segedin, Lauren

    2012-01-01

    Literature on social inequalities in schooling reveals that the school curriculum, streaming, and teacher expectations are school-related factors that limit student success. This study asks: How do the school curriculum, streaming and teacher expectations limit students who have been designated "at risk" from finding success in school?…

  6. The molecular-kinetic approach to wetting dynamics: Achievements and limitations.

    PubMed

    Sedev, Rossen

    2015-08-01

    The molecular-kinetic theory (MKT) of dynamic wetting was formulated almost 50 years ago. It explains the dependence of the dynamic contact angle on the speed of a moving meniscus by estimating the non-hydrodynamic dissipation in the contact line. Over the years it has been refined to account explicitly for the influence of (bulk) fluid viscosity and it has been applied successfully to both solid-liquid-vapour and solid-liquid-liquid systems. The free energy barrier for surface diffusion has been related to the energy of adhesion. The MKT provides a qualitative explanation for most effects in dynamic wetting. The theory is simple, flexible, and it is widely used to rationalize the physics of wetting dynamics and fit experimental data (dynamic contact angle versus contact line speed). The MKT predicts an intermediate wettability as optimal for high-speed coating as well as the maximum speeds of wetting and dewetting. Nevertheless, the values of the molecular parameters derived from experimental data tend to be scattered and not particularly reliable. This review outlines the main achievements and limitations of the MKT and highlights some common cases of misinterpretation. PMID:25449187

  7. From Failure to Success: The Roles of Culture and Cultural Conflict in the Academic Achievement of Chicano Students. Chapter 6.

    ERIC Educational Resources Information Center

    Trueba, Henry T.

    This chapter discusses current theories in educational anthropology that attempt to explain Chicano low academic achievement and changes in achievement as a result of successful educational interventions. Educational researchers have not been able to present adequate justification for the differential achievement levels of minorities. Recent…

  8. Achieving 90–90–90 in paediatric HIV: adolescence as the touchstone for transition success

    PubMed Central

    Lee, Sonia; Hazra, Rohan

    2015-01-01

    Introduction The number of children less than 15 years estimated to be living with HIV globally approximated 3.2 million in 2013. Young people aged 15 to 24 years living with HIV approximated 4 million. The survival of these children and adolescents into adulthood poses new and urgent challenges of transition from the paediatric to adolescent to adult healthcare settings due to emerging developmental, psychosocial and comorbid issues. In order to achieve treatment targets of 90–90–90 across the continuum of care for paediatric HIV by 2020, focused efforts on the implementation of appropriate healthcare transition plans across the lifespan, with a focus on adolescence, should be prioritized. Discussion Published data or empirical evidence examining implementation of transition models and association with clinical outcomes are limited. While some guidelines do exist that offer recommendations about how to promote seamless transitions, very few data are available to assess the adequacy of these guidelines and whether they are effectively adhered to in clinical care settings globally. Furthermore, paediatric and adolescent HIV infection, either acquired perinatally or behaviourally, is set apart from other chronic illnesses as a highly stigmatizing disease that disproportionately affects poor, minority and often marginalized populations. Focused efforts on adolescence as the touchstone for transition practices and policies need to be implemented. Conclusions Optimal healthcare for these vulnerable populations, particularly in resource-limited settings, will require HIV-specific transitional care services and programmes that are coordinated, collaborative, integrated and, importantly, evidence-based. PMID:26639113

  9. Technical Manual for the Texas Successful Schools Study: Quality Education for Limited English Proficient Students.

    ERIC Educational Resources Information Center

    Texas Education Agency, Austin.

    The Texas Successful Schools Study examined the educational practices, school characteristics, and educator characteristics that contributed to the success of seven high-performing elementary schools with high proportions of limited-English-proficient (LEP) and economically disadvantaged students. This technical manual further elaborates the…

  10. Estimating the Impact of the Massachusetts English Immersion Law on Limited English Proficient Students' Reading Achievement

    ERIC Educational Resources Information Center

    Guo, Qian; Koretz, Daniel

    2013-01-01

    The large number of limited English proficient (LEP) children in U.S. schools and the uncertainty about the impact of bilingual education versus English immersion on their achievement warrant rigorous investigation of the effects of "English immersion laws." We estimated the impact of "Question 2", the Massachusetts English immersion law, and…

  11. Understanding Possibilities and Limitations of Abstract Chemical Representations for Achieving Conceptual Understanding

    ERIC Educational Resources Information Center

    Corradi, David M. J.; Elen, Jan; Schraepen, Beno; Clarebout, Geraldine

    2014-01-01

    When learning with abstract and scientific multiple external representations (MERs), low prior knowledge learners are said to have difficulties in using these MERs to achieve conceptual understanding. Yet little is known about what these limitations precisely entail. In order to understand this, we presented 101 learners with low prior knowledge…

  12. Using the Achieving Success Everyday (ASE) Group Model to Promote Self-Esteem and Academic Achievement for English as a Second Language (ESL) Students

    ERIC Educational Resources Information Center

    Shi, Qi; Steen, Sam

    2012-01-01

    The Achieving Success Everyday (ASE) group model is used to promote self-esteem and academic performance of English as a second language (ESL) students. The findings from the preliminary data indicated that the participants' self-esteem was significantly improved after participation in the group. There was no significant improvement in the total…

  13. Strategies Employed by Middle School Principals Successful in Increasing and Sustaining the Mathematics Achievement of African American Students

    ERIC Educational Resources Information Center

    Clark, Rebecca

    2013-01-01

    This study approaches the problem of African American mathematics achievement from a strength-based perspective, identifying practices implemented by middle school principals successful in increasing and sustaining the mathematics achievement of African American students. The study was designed to answer questions regarding both school-wide…

  14. Offshore sacrificial anode design -- A producers view of limiting factors for success

    SciTech Connect

    Warnock, P.A.

    1995-11-01

    Offshore sacrificial anode designs that could in theory provide an optimized solution are in practice constrained by design limiting factors. Limiting factor recommendations are made for Platform and Bracelet anodes together with the introduction of crack propensity (CPR) indicators that can be used to predict maximum anode length which may be successfully manufactured by good foundry practice.

  15. Closing the Achievement Gap: Oregon's Plan for Success for All Students

    ERIC Educational Resources Information Center

    Oregon Department of Education, 2005

    2005-01-01

    Susan Castillo, Superintendent of Public Instruction in Oregon, named closing the achievement gap as a top instructional priority in Oregon. Superintendent Castillo notes three aspects to the achievement gap: (1) Performance gap: The discrepancies between the educational achievement and performance of students of diverse races, ethnicities, income…

  16. Most Likely to Achieve: Predicting Early Success of the Practical Nurse Student

    ERIC Educational Resources Information Center

    Cline, April P.

    2013-01-01

    It is important that practical nurse (PN) educators be able to identify which students are likely to be successful in their programs. However, the majority of literature related to predicting success of nursing students has been done on baccalaureate nursing students in the university setting. This study sought to determine whether the same…

  17. Successful Girls? Complicating Post-Feminist, Neoliberal Discourses of Educational Achievement and Gender Equality

    ERIC Educational Resources Information Center

    Ringrose, Jessica

    2007-01-01

    This paper examines how an ongoing educational panic over failing boys has contributed to a new celebratory discourse about successful girls. Rather than conceive of this shift as an anti-feminist feminist backlash, the paper examines how the successful girl discourse is postfeminist, and how liberal feminist theory has contributed to narrowly…

  18. Reducing the Gap: Success for All and the Achievement of African American Students

    ERIC Educational Resources Information Center

    Madden, Nancy A.

    2006-01-01

    "Success for All" is a comprehensive reform model, which applies cooperative learning, tutoring, family support services, and extensive professional development to help high-poverty schools succeed with their pupils. A review of research on "Success for All" with African American students focuses on evidence that the model reduces the achievement…

  19. Black Hegemony, a Significant Influence in the School Success of High-Achieving African Americans.

    ERIC Educational Resources Information Center

    Murphy, Jean C.

    This is an interpretive study of the influence of Black Hegemony on the academic success of three successful African Americans: Clifton L. Taulbert, Henry Louis Gates, Jr., and Margaret Morgan Lawrence. All three spent their youth in southern communities strongly influenced by Jim Crow laws and customs, and their academic accomplishments were…

  20. Effects of Resource Allocation on Student Academic Achievement and Self-Perceptions of Success in an Urban Setting

    ERIC Educational Resources Information Center

    Harris, Kimberly

    2014-01-01

    Civil Rights legislation, now 50 years old, "de facto" segregation based on socioeconomic factors, such as poverty and ethnicity in urban areas translates into the surrounding schools, with a legacy of limited funding, reduced services, and teachers with limited training to successfully engage students in high poverty areas. This study…

  1. Relations between Personality Traits, Language Learning Styles and Success in Foreign Language Achievement

    ERIC Educational Resources Information Center

    Erton, Ismail

    2010-01-01

    The purpose of this paper is to show that the reflections of different personality types can be observed in students' developing different learning styles for themselves. It is hypothesized that personality may be a dominant factor in achieving the educational goals through several learning styles in foreign language achievement. To clarify this…

  2. Increasing Postsecondary Education Access and Success: Raising Achievement through Outreach Programs. Brief

    ERIC Educational Resources Information Center

    Broton, Katie

    2009-01-01

    Closing the achievement gap depends on highly effective public schools, strong community support, and family involvement. Raising the overall rates of achievement in Minnesota is a vital part of this goal. Research has shown that pre-college outreach programs improve college access for underrepresented groups, including low-income,…

  3. Student Achievement in Identified Workforce Clusters: Understanding Factors that Influence Student Success

    ERIC Educational Resources Information Center

    D'Amico, Mark M.; Morgan, Grant B.; Robertson, Thashundray C.

    2011-01-01

    This study blends elements from two South Carolina Technical College System initiatives--Achieving the Dream and a workforce cluster strategy. Achieving the Dream is a national non-profit organization created to help technical and community college students succeed, particularly low-income students and students of color. This initiative, combined…

  4. Literacy Achievement and Diversity: Keys to Success for Students, Teachers, and Schools. Multicultural Education Series

    ERIC Educational Resources Information Center

    Au, Kathryn H.

    2011-01-01

    "Literacy Achievement and Diversity" is the indispensable collection to the wisdom of respected literacy researcher Kathy Au. In this timely book, Au addresses the question of what educators can do to close the literacy achievement gap. She begins by outlining theory and research and then provides practical strategies to help teachers improve the…

  5. Gaining Retention and Achievement for Students Program (GRASP): A Faculty Development Program To Increase Student Success.

    ERIC Educational Resources Information Center

    McShannon, Judith

    This study investigated the effects of a faculty development program offered to increase positive interactions between students and faculty and the effects of these interactions on student achievement and retention. The Gaining Retention and Achievement for Students (GRASP) program supports the accreditation process of the Accreditation Board of…

  6. Foundations for Success: Case Studies of How Urban School Systems Improve Student Achievement [and] Abstract.

    ERIC Educational Resources Information Center

    Snipes, Jason; Doolittle, Fred; Herlihy, Corinne

    This report examines the experiences of three large urban school districts (and part of a fourth) that raised academic performance for their districts as a whole, while also reducing racial differences in achievement. Educational challenges included low achievement, political conflict, inexperienced teachers, low expectations, and lack of…

  7. Educational Research and Teacher Training for Successfully Teaching Limited English Proficient Students.

    ERIC Educational Resources Information Center

    Grant, Carl A.

    The paper examines the research on teacher training particularly as it relates to preservice and inservice teacher preparation of teachers to work with limited-English-proficient (LEP) students. It highlights successful programmatic patterns and innovations based on research for preparing teachers to work with LEP students. A discussion of…

  8. Differential Validity and Utility of Successive and Simultaneous Approaches to the Development of Equivalent Achievement Tests in French and English

    ERIC Educational Resources Information Center

    Rogers, W. Todd; Gierl, Mark J.; Tardif, Claudette; Lin, Jie; Rinaldi, Christina

    2003-01-01

    Described in this paper are the first three activities of a research program designed to assess the differential validity and utility of successive and simultaneous approaches to the development of equivalent achievement tests in the French and English languages. Two teams of multilingual/multicultural French-English teachers used the simultaneous…

  9. An In-Service Program to Assist the Henderson City and Henderson County School Systems in Achieving Successful Total Desegregation.

    ERIC Educational Resources Information Center

    Henderson County Public Schools, Henderson, KY.

    This report is a result of a four week In-Service Training Program conducted by the Henderson County-Henderson City School Systems to assist in achieving successful total desegregation under the provisions of Title IV of the Civil Rights Act of 1964. This program was designed to assist in solving the special educational problems for the 1965-66…

  10. Evaluation of Achieving Collegiate Excellence and Success Program: Student Outcomes Year One, Grades 11 and 12. Evaluation Brief

    ERIC Educational Resources Information Center

    Wolanin, Natalie; Modarresi, Shahpar

    2015-01-01

    The Office of Shared Accountability in Montgomery County (Maryland) Public Schools (MCPS) is conducting a multiyear evaluation of the "Achieving Collegiate Excellence and Success" (ACES) program. ACES is a collaboration between MCPS, Montgomery College (MC), and the Universities at Shady Grove (USG) to create a seamless pathway from high…

  11. Navajo Culture and Family Influences on Academic Success: Traditionalism Is Not a Significant Predictor of Achievement among Navajo Youth.

    ERIC Educational Resources Information Center

    Willeto, Angela A. A.

    1999-01-01

    A study of 451 Navajo youths attending 11 high schools in the Navajo Nation found no relationship between their academic achievement and their cultural attachments and practices. Families modestly influenced educational outcomes, but being female was a stronger predictor of academic success. An appendix describes study variables. (Contains 42…

  12. Helping Middle School Girls at Risk for School Failure Recover Their Confidence and Achieve School Success: An Experimental Study

    ERIC Educational Resources Information Center

    Mann, Michael J.

    2013-01-01

    Middle school girls who are at risk have experienced a disproportionate number of intense and disruptive traumatic life events. Such events can adversely affect healthy development and often contribute to higher levels of school failure and problem behavior. Few programs focus on helping at-risk middle school girls achieve school success through…

  13. Research Considerations and Theoretical Application for Best Practices in Higher Education: Latina/os Achieving Success

    ERIC Educational Resources Information Center

    Castellanos, Jeanett; Gloria, Alberta M.

    2007-01-01

    This scholarly article addresses the Latina/o undergraduate experiences proposing a (re)definition of educational success. Discussing strength-based practices of "familia", mentorship, cultural congruity, and professional development from a psychosociocultural (PSC) approach, the article presents practical recommendations and directions for…

  14. A Plan for Academic Success: Helping Academically Dismissed Students Achieve Their Goals

    ERIC Educational Resources Information Center

    Cherry, Lynn; Coleman, Lindy

    2010-01-01

    This article describes a unique process which allows a select few students who have been dismissed for academic deficiency the opportunity to create a Plan for Academic Success (Plan), which, if accepted, reverses the academic dismissal for one semester. If the Plan is accepted, the individual student assumes responsibility for taking action to…

  15. Facilitating High Achievement: High School Principals' Reflections on Their Successful Leadership Practices

    ERIC Educational Resources Information Center

    Crum, Karen S.; Sherman, Whitney H.

    2008-01-01

    Purpose: The burden for school improvement in a time of accountability falls squarely on the shoulders of principals as new requirements demand that they act as instructional leaders. The purpose of this study is to discover the common themes of school leadership and instructional practices of high school principals at successful schools in…

  16. Coeliac disease and infertility: making the connection and achieving a successful pregnancy.

    PubMed

    Hin, Harold; Ford, Fiona

    2002-01-01

    Undiagnosed coeliac disease is not uncommon in adults in the UK and can be a cause of unexplained infertility in women. Studies suggest that dietary treatment of women with coeliac disease may result in successful conception. The diet of a woman with coeliac disease during pregnancy is discussed and agencies offering support are listed. PMID:12416015

  17. High Enrollment Course Success Factors in Virtual School: Factors Influencing Student Academic Achievement

    ERIC Educational Resources Information Center

    Liu, Feng; Cavanaugh, Cathy

    2011-01-01

    This paper describes a study of success factors in high enrollment courses in a K-12 virtual school learning environment. The influence of variables: time student spent in the learning management system (LMS), number of times logged into the LMS, teacher comment, participation in free or reduced lunch programs, student status in the virtual school…

  18. Exploring the Role and Influence of Expectations in Achieving VLE Benefit Success

    ERIC Educational Resources Information Center

    Jackson, Stephen; Fearon, Colm

    2014-01-01

    The aim of this paper is to investigate the role and influence of expectations management in realising benefit success when adopting a virtual learning environment (VLE). Based on a discussion of findings from a further and higher education college in the UK, a conceptual expectations management model is developed that explores the factors…

  19. Creativity and Education: Personal Reflections on Achieving Success by Working outside the Box.

    ERIC Educational Resources Information Center

    Rowan, Paul

    2003-01-01

    A successful businessman developed his creativity in spite of his school experiences. Creativity is essential to compete in the global market. For that reason, he supports creative education in Canada through internships and design competitions and as advisor to a college school of design. Partnerships between education and industry stimulate…

  20. Effects of Success for All on the Achievement of English Language Learners.

    ERIC Educational Resources Information Center

    Slavin, Robert E.; Madden, Nancy A.

    The Success for All model of instruction, which seeks to prevent academic problems in elementary school by addressing reading difficulties with early, intensive intervention, is described. The approach, begun with native English-speaking students at risk academically, provides tutoring from prekindergarten or kindergarten onward, particularly…

  1. The Study Experiences of the High Achievers in a Competitive Academic Environment: A Cost of Success?

    ERIC Educational Resources Information Center

    Nordmo, Ivar; Samara, Akylina

    2009-01-01

    The present paper is a case study that explores the study experiences and possible costs of success for the students accepted into the professional program in psychology at the University of Bergen in Norway. In this highly competitive environment, between 500 and 1000 students compete for 36 places during the introduction year. The study is based…

  2. Examining the Success Factors of High-Achieving Puerto Rican Male High-School Students

    ERIC Educational Resources Information Center

    Garrett, Tomas; Antrop-Gonzalez, Rene; Velez, William

    2010-01-01

    This article works to dispel the myth that Latino urban high-school students are not capable of performing at high academic levels. Whereas much educational research emphasizes the academic underachievement of urban Latino students, this article counteracts this research by describing the four success factors that three working-class Puerto Rican…

  3. Guide to Success for Organisations in Achieving Employment Outcomes for Aboriginal and Torres Strait Islander People

    ERIC Educational Resources Information Center

    Giddy, Kristine; Lopez, Jessica; Redman, Anne

    2009-01-01

    Helping Aboriginal and Torres Strait Islander job-seekers find and keep a job has been the focus of recent reforms announced by the Australian Government. This guide describes seven essential characteristics of employment service organisations that lead to successful employment outcomes for their Indigenous clients. Based on a selection of…

  4. Gender Differences in Planning, Attention, Simultaneous, and Successive (PASS) Cognitive Processes and Achievement.

    ERIC Educational Resources Information Center

    Naglieri, Jack A.; Rojahn, Johannes

    2001-01-01

    Examined 1,100 boys and 1,100 girls who matched the U.S. population using the Planning, Attention, Simultaneous, Successive (PASS) cognitive-processing theory, built on the neuropsychological work of A.R. Luria (1973). Results illustrate that the PASS theory offers a useful way to examine gender differences in cognitive performance. (BF)

  5. Achieving the Dream: A Look at Hispanic Student Success at Community Colleges in Texas

    ERIC Educational Resources Information Center

    Williams, Audrey R.

    2013-01-01

    In the last decade, higher education institutions have come under attack for their inability to enhance graduation rates. Although community colleges are known for their open-door enrollment policy, they are currently challenged to improve student success. This study was designed to determine which strategies have been most effective in…

  6. Children's Casual Attributions for Success and Failure in Achievement Settings: A Meta-Analysis.

    ERIC Educational Resources Information Center

    Whitley, Bernard E., Jr.; Frieze, Irene Hanson

    1985-01-01

    A meta analysis of research on children's attributions for success and failure was conducted to test the adequacy of the egotistic bias hypothesis for children in grades one to seven. Results supported the egotism hypothesis and indicated that both question wording and research context are important determinants of children's attributions.…

  7. The Interplay between Educational Achievement, Occupational Success, and Well-Being

    ERIC Educational Resources Information Center

    Samuel, Robin; Bergman, Manfred Max; Hupka-Brunner, Sandra

    2013-01-01

    Many studies have examined the effect of life events, education, and income on well-being. Conversely, research concerning well-being as a predictor of life course outcomes is sparse. Diener's suggestion "to inquire about the effects of well-being on future behavior and success" has, with some exceptions, not yet come to fruition. This article…

  8. Preadmission Academic Achievement Criteria as Predictors of Nursing Program Completion and NCLEX-RN Success

    ERIC Educational Resources Information Center

    Rogers, Tanya L.

    2009-01-01

    Admission policies and practices in higher education, including those in nursing programs, are diverse; yet administrators have traditionally relied upon preadmission academic achievement for selection of qualified students. Higher education administrators have the responsibility to serve the institution and all of its constituents, ensuring that…

  9. Leveraging Quality Improvement to Achieve Student Learning Assessment Success in Higher Education

    ERIC Educational Resources Information Center

    Glenn, Nancy Gentry

    2009-01-01

    Mounting pressure for transformational change in higher education driven by technology, globalization, competition, funding shortages, and increased emphasis on accountability necessitates that universities implement reforms to demonstrate responsiveness to all stakeholders and to provide evidence of student achievement. In the face of the demand…

  10. Strategies for Success: Links to Increased Mathematics Achievement Scores of English-Language Learners

    ERIC Educational Resources Information Center

    Pray, Lisa; Ilieva, Vessela

    2011-01-01

    This research investigates the link between mathematic teachers' use of English-language learner (ELL) strategies and the mathematics achievement of their students who are ELLs. Interviews and observations of mathematic teachers who taught ELLs were used to document instructional strategies use. The findings from the interviews and observations…

  11. Disabled and Successful: Education in the Life Stories of Disabled High Achievers

    ERIC Educational Resources Information Center

    Shah, Sonali; Travers, Cheryl; Arnold, John

    2004-01-01

    There has been much debate concerning the pros and cons of special and mainstream education for young people with a disability. This paper adds data to this debate by reporting the educational experiences of 20 high-achievers with congenital disabilities who live in the United Kingdom and were born between 1950 and 1970. It presents personal…

  12. Urban Professional Development Working to Create Successful Teachers and Achieving Students

    ERIC Educational Resources Information Center

    Yost, Deborah S.; Vogel, Robert

    2007-01-01

    With the advent of No Child Left Behind Act of 2001, schools are being held accountable for measurable increases in student academic achievement as evidenced by performance on standardized tests. This movement has significant implications for the professional development of teachers who are ultimately responsible for ensuring that their…

  13. Friends' Responses to Children's Disclosure of an Achievement-Related Success: An Observational Study

    ERIC Educational Resources Information Center

    Altermatt, Ellen Rydell; Ivers, Ivy E.

    2011-01-01

    This study examined social support processes in the context of positive events. The conversations of fourth-grade through sixth-grade focal children and their friends (N = 116) were observed after focal children outperformed their friend on an achievement-related task. Changes in focal children's performance-related positive affect from…

  14. Closing the Achievement Gap: Principles for Improving the Educational Success of All Students. ERIC Digest.

    ERIC Educational Resources Information Center

    Schwartz, Wendy

    This digest reviews educational policies and practices that have been proven effective in closing the achievement gap, offering a list of resources with detailed information about them. The digest focuses on state and district roles (e.g., developing and implementing educational goals, rigorous standards, and accountability standards and providing…

  15. Achievement Goals and Persistence across Tasks: The Roles of Failure and Success

    ERIC Educational Resources Information Center

    Sideridis, Georgios D.; Kaplan, Avi

    2011-01-01

    The focus of this study is on the role of achievement goals in students' persistence. The authors administered 5 puzzles to 96 college students: 4 unsolvable and 1 relatively easy (acting as a hope probe). They examined whether and how persistence may deteriorate as a function of failing the puzzles, as well as whether and how persistence may…

  16. Marked for Success: Secondary School Performance and University Achievement in Biology

    ERIC Educational Resources Information Center

    Comer, Keith; Broght, Erik; Sampson, Kaylene

    2011-01-01

    Building on Shulruf, Hattie and Tumen (2008), this work examines the capacity of various National Certificate in Educational Achievement (NCEA)-derived models to predict first-year performance in Biological Sciences at a New Zealand university. We compared three models: (1) the "best-80" indicator as used by several New Zealand…

  17. The Achievement Gap among Newcomer Immigrant Adolescents: Life Stressors Hinder Latina/o Academic Success

    ERIC Educational Resources Information Center

    Patel, Sita G.; Barrera, Alinne Z.; Strambler, Michael J.; Muñoz, Ricardo F.; Macciomei, Erynn

    2016-01-01

    This study compares life stressors and school outcomes among newcomer immigrant adolescents from Latin America, Asia, and the Caribbean. Participants attended a predominantly low-income, urban international public high school in the northeast. The Latina/o students were exposed to more life stressors and had lower attendance and achievement than…

  18. School Counseling to Close the Achievement Gap: A Social Justice Framework for Success

    ERIC Educational Resources Information Center

    Holcomb-McCoy, Cheryl

    2007-01-01

    School counselors can play a powerful role in closing the achievement gap when they incorporate the principles of social justice into their practice. In this much-needed resource for preservice and inservice counselors, the author addresses factors (such as racism, sexism, heterosexism, and classism) that can contribute to academic failure, and…

  19. Saving for Success: Financial Education and Savings Goal Achievement in Individual Development Accounts

    ERIC Educational Resources Information Center

    Grinstead, Mary L.; Mauldin, Teresa; Sabia, Joseph J.; Koonce, Joan; Palmer, Lance

    2011-01-01

    Using microdata from the American Dream Demonstration, the current study examines factors associated with savings and savings goal achievement (indicated by a matched withdrawal) among participants of individual development account (IDA) programs. Multinomial logit results show that hours of participation in financial education programs, higher…

  20. Review: Balancing Limiting Factors and Economic Drivers to Achieve Sustainable Midwestern US Agricultural Residue Feedstock Supplies

    SciTech Connect

    Wally W. Wilhelm; J. Richard Hess; Douglas L. Karlen; David J. Muth; Jane M. F. Johnson; John M. Baker; Hero T. Gollany; Jeff M. Novak; Diane E. Stott; Gary E. Varvel

    2010-10-01

    Advanced biofuels will be developed using cellulosic feedstock rather than grain or oilseed crops that can also be used for food and feed. To be sustainable, these new agronomic production systems must be economically viable without degrading soil resources. This review examines six agronomic factors that collectively define many of the limits and opportunities for harvesting crop residue for biofuel feedstock. These six “limiting factors” are discussed in relationship to economic drivers associated with harvesting corn (Zea mays L.) stover as a potential cellulosic feedstock. The limiting factors include soil organic carbon, wind and water erosion, plant nutrient balance, soil water and temperature dynamics, soil compaction, and off-site environmental impacts. Initial evaluations using the Revised Universal Soil Loss Equation 2.0 (RUSLE2) show that a single factor analysis based on simply meeting tolerable soil loss might indicate stover could be harvested sustainably, but the same analysis based on maintaining soil organic carbon shows the practice to be non-sustainable. Modifying agricultural management to include either annual or perennial cover crops is shown to meet both soil erosion and soil carbon requirements. The importance of achieving high yields and planning in a holistic manner at the landscape scale are also shown to be crucial for balancing limitations and drivers associated with renewable bioenergy production.

  1. Recipe for Success: An Updated Parents' Guide to Improving Colorado Schools and Student Achievement. Second Edition.

    ERIC Educational Resources Information Center

    Taher, Bonnie; Durr, Pamela

    This guide describes ways that parents can help improve student achievement and school quality. It answers such questions as how to choose the right early-education opportunity for a preschooler, how to make sure a 5-year-old is ready for school, how to help a daughter do well in school, how to work with a daughter's or son's teachers, how to help…

  2. America's Promise Alliance: 10 Indicators of Academic Achievement and Youth Success

    ERIC Educational Resources Information Center

    Gifford, Beth; Evans, Kelly; Berlin, Lisa; Bai, Yu

    2011-01-01

    Approximately one quarter of U.S. students do not graduate from high school with their peers. Failing to complete high school severely limits opportunities for employment and future financial stability. High school dropouts earn lower wages through their lifetime and work for fewer years. The costs to society of high school dropouts are also high…

  3. Enhancing physics demonstration shows: where physics and the arts meet to achieve success

    NASA Astrophysics Data System (ADS)

    Hammer, Donna; Uher, Tim

    2015-04-01

    Physics demonstrations are widely used by universities in undergraduate education and public outreach to engage students and teach physics concepts. At the University of Maryland, the Physics is Phun public demonstration programs are a vehicle for public outreach with longstanding success (dating back to 1982). A recent program, ``Out of the Dark,'' presented the evolution of the fields of electricity and magnetism by merging physics demonstrations with history and performing arts. In this session, we will discuss methods by which these outside fields can be utilized in a demonstration program. We will also discuss the outcomes of these methods in enhancing engagement of audience members and undergraduate majors alike.

  4. Local adaptation limits lifetime reproductive success of dispersers in a wild salmon metapopulation.

    PubMed

    Peterson, Daniel A; Hilborn, Ray; Hauser, Lorenz

    2014-01-01

    Demographic and evolutionary dynamics in wild metapopulations are critically affected by the balance between dispersal and local adaptation. Where populations are demographically interconnected by migration, gene flow is often assumed to prevent local adaptation. However, reduced fitness of immigrants may limit gene flow between populations adapted to distinct habitat types, although direct quantification of the lifetime reproductive success of immigrants in the wild is lacking. Here, we show that dispersers between stream-spawning populations of sockeye salmon (Oncorhynchus nerka) had similar reproductive success to those that spawned in their natal stream, whereas dispersers from a different habitat (nearby lake beaches) produced half as many offspring. The stream- and beach-spawning ecotypes exhibited striking morphological differences despite their close spatial proximity, yet dispersal from the beach to the streams was more common than dispersal between streams, presenting empirical evidence that variation in immigrant reproductive success is important for the maintenance of intraspecific biodiversity. PMID:24739514

  5. Mismatched partners that achieve postpairing behavioral similarity improve their reproductive success

    PubMed Central

    Laubu, Chloé; Dechaume-Moncharmont, François-Xavier; Motreuil, Sébastien; Schweitzer, Cécile

    2016-01-01

    Behavioral similarity between partners is likely to promote within-pair compatibility and to result in better reproductive success. Therefore, individuals are expected to choose a partner that is alike in behavioral type. However, mate searching is very costly and does not guarantee finding a matching partner. If mismatched individuals pair, they may benefit from increasing their similarity after pairing. We show in a monogamous fish species—the convict cichlid—that the behavioral similarity between mismatched partners can increase after pairing. This increase resulted from asymmetrical adjustment because only the reactive individual became more alike its proactive partner, whereas the latter did not change its behavior. The mismatched pairs that increased their similarity not only improved their reproductive success but also raised it up to the level of matched pairs. While most studies assume that assortative mating results from mate choice, our study suggests that postpairing adjustment could be an alternative explanation for the high behavioral similarity between partners observed in the field. It also explains why interindividual behavioral differences can be maintained within a given population. PMID:26973869

  6. The Development of Computational Biology in South Africa: Successes Achieved and Lessons Learnt

    PubMed Central

    Mulder, Nicola J.; Christoffels, Alan; de Oliveira, Tulio; Gamieldien, Junaid; Hazelhurst, Scott; Joubert, Fourie; Kumuthini, Judit; Pillay, Ché S.; Snoep, Jacky L.; Tastan Bishop, Özlem; Tiffin, Nicki

    2016-01-01

    Bioinformatics is now a critical skill in many research and commercial environments as biological data are increasing in both size and complexity. South African researchers recognized this need in the mid-1990s and responded by working with the government as well as international bodies to develop initiatives to build bioinformatics capacity in the country. Significant injections of support from these bodies provided a springboard for the establishment of computational biology units at multiple universities throughout the country, which took on teaching, basic research and support roles. Several challenges were encountered, for example with unreliability of funding, lack of skills, and lack of infrastructure. However, the bioinformatics community worked together to overcome these, and South Africa is now arguably the leading country in bioinformatics on the African continent. Here we discuss how the discipline developed in the country, highlighting the challenges, successes, and lessons learnt. PMID:26845152

  7. The Development of Computational Biology in South Africa: Successes Achieved and Lessons Learnt.

    PubMed

    Mulder, Nicola J; Christoffels, Alan; de Oliveira, Tulio; Gamieldien, Junaid; Hazelhurst, Scott; Joubert, Fourie; Kumuthini, Judit; Pillay, Ché S; Snoep, Jacky L; Tastan Bishop, Özlem; Tiffin, Nicki

    2016-02-01

    Bioinformatics is now a critical skill in many research and commercial environments as biological data are increasing in both size and complexity. South African researchers recognized this need in the mid-1990s and responded by working with the government as well as international bodies to develop initiatives to build bioinformatics capacity in the country. Significant injections of support from these bodies provided a springboard for the establishment of computational biology units at multiple universities throughout the country, which took on teaching, basic research and support roles. Several challenges were encountered, for example with unreliability of funding, lack of skills, and lack of infrastructure. However, the bioinformatics community worked together to overcome these, and South Africa is now arguably the leading country in bioinformatics on the African continent. Here we discuss how the discipline developed in the country, highlighting the challenges, successes, and lessons learnt. PMID:26845152

  8. Detection limits of organic compounds achievable with intense, short-pulse lasers.

    PubMed

    Miles, Jordan; De Camillis, Simone; Alexander, Grace; Hamilton, Kathryn; Kelly, Thomas J; Costello, John T; Zepf, Matthew; Williams, Ian D; Greenwood, Jason B

    2015-06-21

    Many organic molecules have strong absorption bands which can be accessed by ultraviolet short pulse lasers to produce efficient ionization. This resonant multiphoton ionization scheme has already been exploited as an ionization source in time-of-flight mass spectrometers used for environmental trace analysis. In the present work we quantify the ultimate potential of this technique by measuring absolute ion yields produced from the interaction of 267 nm femtosecond laser pulses with the organic molecules indole and toluene, and gases Xe, N2 and O2. Using multiphoton ionization cross sections extracted from these results, we show that the laser pulse parameters required for real-time detection of aromatic molecules at concentrations of one part per trillion in air and a limit of detection of a few attomoles are achievable with presently available commercial laser systems. The potential applications for the analysis of human breath, blood and tissue samples are discussed. PMID:25929227

  9. Piloted Simulator Investigation of Techniques to Achieve Attitude Command Response with Limited Authority Servos

    NASA Technical Reports Server (NTRS)

    Key, David L.; Heffley, Robert K.

    2002-01-01

    The purpose of the study was to develop generic design principles for obtaining attitude command response in moderate to aggressive maneuvers without increasing SCAS series servo authority from the existing +/- 10%. In particular, to develop a scheme that would work on the UH-60 helicopter so that it can be considered for incorporation in future upgrades. The basic math model was a UH-60A version of GENHEL. The simulation facility was the NASA-Ames Vertical Motion Simulator (VMS). Evaluation tasks were Hover, Acceleration-Deceleration, and Sidestep, as defined in ADS-33D-PRF for Degraded Visual Environment (DVE). The DVE was adjusted to provide a Usable Cue Environment (UCE) equal to two. The basic concept investigated was the extent to which the limited attitude command authority achievable by the series servo could be supplemented by a 10%/sec trim servo. The architecture used provided angular rate feedback to only the series servo, shared the attitude feedback between the series and trim servos, and when the series servo approached saturation the attitude feedback was slowly phased out. Results show that modest use of the trim servo does improve pilot ratings, especially in and around hover. This improvement can be achieved with little degradation in response predictability during moderately aggressive maneuvers.

  10. Evaluation of pollutants removal efficiency to achieve successful urban river restoration.

    PubMed

    Cha, Sung Min; Ham, Young Sik; Ki, Seo Jin; Lee, Seung Won; Cho, Kyung Hwa; Park, Yongeun; Kim, Joon Ha

    2009-01-01

    Greater efforts to provide alternative scenarios are key to successful urban stream restoration planning. In this study, we discuss two different aspects of water quality management schemes, biodegradation and human health, which are incorporated in the restoration project of original, pristine condition of urban stream at the Gwangju (GJ) Stream, Korea. For this study, monthly monitoring of biochemical oxygen demand (BOD(5)) and fecal indicator bacteria (FIB) data were obtained from 2003 to 2008 and for 2008, respectively, and these were evaluated to explore pollutant magnitude and variation with respect to space and time window. Ideal scenarios to reduce target pollutants were determined based on their seasonal characteristics and correlations between the concentrations at a water intake and discharge point, where we suggested an increase of environmental flow and wetland as pollutants reduction drawing for BOD(5) and FIB, respectively. The scenarios were separately examined by the Qual2E model and hypothetically (but planned) constructed wetland, respectively. The results revealed that while controlling of the water quality at the intake point guaranteed the lower pollution level of BOD(5) in the GJ Stream, a wetland constructed at the discharge point may be a promising strategy to mitigate mass loads of FIB. Overall, this study suggests that a combination of the two can be plausible scenarios not only to support sustainable urban water resources management, but to enhance a quality of urban stream restoration assignment. PMID:19494448

  11. Combustion Module-2 Achieved Scientific Success on Shuttle Mission STS-107

    NASA Technical Reports Server (NTRS)

    Over, Ann P.

    2004-01-01

    The familiar teardrop shape of a candle is caused by hot, spent air rising and cool fresh air flowing behind it. This type of airflow obscures many of the fundamental processes of combustion and is an impediment to our understanding and modeling of key combustion controls used for manufacturing, transportation, fire safety, and pollution. Conducting experiments in the microgravity environment onboard the space shuttles eliminates these impediments. NASA Glenn Research Center's Combustion Module-2 (CM-2) and its three experiments successfully flew on STS-107/Columbia in the SPACEHAB module and provided the answers for many research questions. However, this research also opened up new questions. The CM-2 facility was the largest and most complex pressurized system ever flown by NASA and was a precursor to the Glenn Fluids and Combustion Facility planned to fly on the International Space Station. CM-2 operated three combustion experiments: Laminar Soot Processes (LSP), Structure of Flame Balls at Low Lewis-Number (SOFBALL), and Water Mist Fire Suppression Experiment (Mist). Although Columbia's mission ended in tragedy with the loss of her crew and much data, most of the CM-2 results were sent to the ground team during the mission.

  12. Magnetic properties with multiwavelets and DFT: the complete basis set limit achieved.

    PubMed

    Jensen, Stig Rune; Flå, Tor; Jonsson, Dan; Monstad, Rune Sørland; Ruud, Kenneth; Frediani, Luca

    2016-08-01

    Multiwavelets are emerging as an attractive alternative to traditional basis sets such as Gaussian-type orbitals and plane waves. One of their distinctive properties is the ability to reach the basis set limit (often a chimera for traditional approaches) reliably and consistently by fixing the desired precision ε. We present our multiwavelet implementation of the linear response formalism, applied to static magnetic properties, at the self-consistent field level of theory (both for Hartree-Fock and density functional theories). We demonstrate that the multiwavelets consistently improve the accuracy of the results when increasing the desired precision, yielding results that have four to five digits precision, thus providing a very useful benchmark which could otherwise only be estimated by extrapolation methods. Our results show that magnetizabilities obtained with the augmented quadruple-ζ basis (aug-cc-pCVQZ) are practically at the basis set limit, whereas absolute nuclear magnetic resonance shielding tensors are more challenging: even by making use of a standard extrapolation method, the accuracy is not substantially improved. In contrast, our results provide a benchmark that: (1) confirms the validity of the extrapolation ansatz; (2) can be used as a reference to achieve a property-specific extrapolation scheme, thus providing a means to obtain much better extrapolated results; (3) allows us to separate functional-specific errors from basis-set ones and thus to assess the level of cancellation between basis set and functional errors often exploited in density functional theory. PMID:27087397

  13. Simple Limits on Achieving A Quasi-Linear Magnetic Compression for an FEL Driver

    SciTech Connect

    Sun, Yipeng; /SLAC

    2012-02-16

    Free electron lasers (FEL) need a very bright electron beam in three dimensions and a high peak charge density. In order to compress an initially longer electron bunch generated from the photoinjector, magnetic bunch compression systems are widely employed. In this paper, first harmonic RF linearization and its associated requirements are reviewed. Meanwhile it is also briefly discussed what is the relation between a proper initial bunch length and main RF frequency, when a harmonic RF linearization is included. Then given a reasonable bunch compression ratio, a proper initial bunch length as a function of the main RF frequency and RF phase is estimated analytically by several approaches, assuming that no harmonic RF section is needed to linearize the energy modulation introduced during main RF acceleration, and at the same time still linearly compress the bunch length. Next the upper limit of the bunch compression ratio in a single stage is evaluated analytically. The analytical relations derived on choosing a proper initial bunch length as a function of main RF frequency are confirmed by numerical simulation. These simple limit provide rough estimations and may be beneficial for choosing bunch compression ratios in different stages of an FEL driver, especially in a first stage bunch compression where there is usually a harmonic RF linearization applied. It may also be useful in evaluating the possibility of low charge operation mode without any harmonic RF linearization, where a shorter initial bunch length can be achieved from the photoinjector.

  14. Achieving Thermodynamic Limit of Subthreshold Slope in Nanoscale Schottky Barrier MOSFET with Pillar Structure Inserted

    NASA Astrophysics Data System (ADS)

    Lee, Jung-Yong; Jung, Sungchul; Park, Kibog

    As the device size decreases continuously by scaling in the current Si CMOS technology, subthreshold slope which is related to device operation and leakage current becomes more and more important. Especially, the drain induced barrier lowering (DIBL) modulation for improving subthreshold slope in metal/oxide/metal field effect transistor (MOSFET) is difficult to achieve. We propose a new device structure, edge-over Schottky Barrier MOSFET (EO-SB-MOSFET), which shows low DIBL and subthreshold slope approaching the thermodynamic limit of 60 mV/DEC at room temperature. EO-SB-MOSFET has a pillar structure which elongates the transistor channel by forming it over the edge of pillar. Hence, EO-SB-MOSFET has a much longer channel compared with planar MOSFET in the same pitch. We performed 2-dimensional TCAD modeling on an EO-SB-MOSFET with channel lateral size of 6.5 nm and pillar height of 36 nm. The TCAD modeling predicts DIBL of ~5 mV/V, subthreshold slope of ~61.3 mV/DEC, and off-state current of ~0.1 nA/ μm at drain bias 0.5 V. It is also noticed that the subthreshold slope gets further close to the thermodynamic limit as the pillar height increases. Supported by NRF in South Korea (2013R1A1A2007070).

  15. Successful debriefing - best methods to achieve positive learning outcomes: a literature review.

    PubMed

    Dufrene, Claudine; Young, Anne

    2014-03-01

    The past several years have seen a dramatic increase in the use of simulation in nursing education. The process of debriefing, or guided reflection, follows these simulation activities. Although facilitated debriefing is recommended in the simulation literature, very few research articles reported results of the effectiveness of debriefing. A literature search was conducted using PubMed, Academic Search Complete, CINAHL, ERIC, and PsychInfo to identify articles and studies examining simulation and debriefing methods. A limited number of studies were found, that examined traditional faculty facilitated debriefing versus alternate forms of debriefing, debriefing versus no debriefing, and perceptions of debriefing. In most cases, improvement was noted in learners regardless of the debriefing process used. This review is grouped in two sections: (a) studies comparing debriefing strategies and (b) studies examining perceptions of the usefulness of debriefing. PMID:23890542

  16. Achieving successful delivery of oligonucleotides--From physico-chemical characterization to in vivo evaluation.

    PubMed

    Scomparin, Anna; Polyak, Dina; Krivitsky, Adva; Satchi-Fainaro, Ronit

    2015-11-01

    RNA interference is one of the most promising fields in modern medicine to treat several diseases, ranging from cancer to cardiac diseases, passing through viral infections and metabolic pathologies. Since the discovery of the potential therapeutic properties of non-self oligonucleotides, it was clear that it is important to develop delivery systems that are able to increase plasma stability and bestow membrane-crossing abilities to the oligonucleotides in order to reach their cytoplasmic targets. Polymer therapeutics, among other systems, are widely investigated as delivery systems for therapeutic agents, such as oligonucleotides. Physico-chemical characterization of the supramolecular polyplexes obtained upon charge interaction or covalent conjugation between the polymeric carrier and the oligonucleotides is critical. Appropriate characterization is fundamental in order to predict and understand the in vivo silencing efficacy and to avoid undesired side effects and toxicity profile. Shedding light on the physico-chemical and in vitro requirements of a polyplex leads to an efficient in vivo delivery system for RNAi therapeutics. In this review, we will present the most common techniques for characterization of obtained polymer/oligonucleotide polyplexes and an up-to-date state of the art in vivo preclinical and clinical studies. This is the first review to deal with the difficulties in appropriate characterization of small interfering RNA (siRNA) or microRNA (miRNA) polyplexes and conjugates which limit the clinical translation of this promising technology. PMID:25916823

  17. Effects of pollination limitation and seed predation on female reproductive success of a deceptive orchid.

    PubMed

    Walsh, Ryan P; Arnold, Paige M; Michaels, Helen J

    2014-01-01

    For many species of conservation significance, multiple factors limit reproduction. This research examines the contributions of plant height, number of flowers, number of stems, pollen limitation and seed predation to female reproductive success in the deceit-pollinated orchid, Cypripedium candidum. The deceptive pollination strategy employed by many orchids often results in high levels of pollen limitation. While increased floral display size may attract pollinators, C. candidum's multiple, synchronously flowering stems could promote selfing and also increase attack by weevil seed predators. To understand the joint impacts of mutualists and antagonists, we examined pollen limitation, seed predation and the effects of pollen source over two flowering seasons (2009 and 2011) in Ohio. In 2009, 36 pairs of plants size-matched by flower number, receiving either supplemental hand or open pollination, were scored for fruit maturation, mass of seeds and seed predation. Pollen supplementation increased proportion of flowers maturing into fruit, with 87 % fruit set when hand pollinated compared with 46 % for naturally pollinated flowers. Inflorescence height had a strong effect, as taller inflorescences had higher initial fruit set, while shorter stems had higher predation. Seed predation was seen in 73 % of all fruits. A parallel 2011 experiment that included a self-pollination treatment and excluded seed predators found initial and final fruit set were higher in the self and outcross pollination treatments than in the open-pollinated treatment. However, seed mass was higher in both open pollinated and outcross pollination treatments compared with hand self-pollinated. We found greater female reproductive success for taller flowering stems that simultaneously benefited from increased pollination and reduced seed predation. These studies suggest that this species is under strong reinforcing selection to increase allocation to flowering stem height. Our results may help

  18. Effects of pollination limitation and seed predation on female reproductive success of a deceptive orchid

    PubMed Central

    Walsh, Ryan P.; Arnold, Paige M.; Michaels, Helen J.

    2014-01-01

    For many species of conservation significance, multiple factors limit reproduction. This research examines the contributions of plant height, number of flowers, number of stems, pollen limitation and seed predation to female reproductive success in the deceit-pollinated orchid, Cypripedium candidum. The deceptive pollination strategy employed by many orchids often results in high levels of pollen limitation. While increased floral display size may attract pollinators, C. candidum's multiple, synchronously flowering stems could promote selfing and also increase attack by weevil seed predators. To understand the joint impacts of mutualists and antagonists, we examined pollen limitation, seed predation and the effects of pollen source over two flowering seasons (2009 and 2011) in Ohio. In 2009, 36 pairs of plants size-matched by flower number, receiving either supplemental hand or open pollination, were scored for fruit maturation, mass of seeds and seed predation. Pollen supplementation increased proportion of flowers maturing into fruit, with 87 % fruit set when hand pollinated compared with 46 % for naturally pollinated flowers. Inflorescence height had a strong effect, as taller inflorescences had higher initial fruit set, while shorter stems had higher predation. Seed predation was seen in 73 % of all fruits. A parallel 2011 experiment that included a self-pollination treatment and excluded seed predators found initial and final fruit set were higher in the self and outcross pollination treatments than in the open-pollinated treatment. However, seed mass was higher in both open pollinated and outcross pollination treatments compared with hand self-pollinated. We found greater female reproductive success for taller flowering stems that simultaneously benefited from increased pollination and reduced seed predation. These studies suggest that this species is under strong reinforcing selection to increase allocation to flowering stem height. Our results may help

  19. Phase noise in pulsed Doppler lidar and limitations on achievable single-shot velocity accuracy

    NASA Technical Reports Server (NTRS)

    Mcnicholl, P.; Alejandro, S.

    1992-01-01

    The smaller sampling volumes afforded by Doppler lidars compared to radars allows for spatial resolutions at and below some sheer and turbulence wind structure scale sizes. This has brought new emphasis on achieving the optimum product of wind velocity and range resolutions. Several recent studies have considered the effects of amplitude noise, reduction algorithms, and possible hardware related signal artifacts on obtainable velocity accuracy. We discuss here the limitation on this accuracy resulting from the incoherent nature and finite temporal extent of backscatter from aerosols. For a lidar return from a hard (or slab) target, the phase of the intermediate frequency (IF) signal is random and the total return energy fluctuates from shot to shot due to speckle; however, the offset from the transmitted frequency is determinable with an accuracy subject only to instrumental effects and the signal to noise ratio (SNR), the noise being determined by the LO power in the shot noise limited regime. This is not the case for a return from a media extending over a range on the order of or greater than the spatial extent of the transmitted pulse, such as from atmospheric aerosols. In this case, the phase of the IF signal will exhibit a temporal random walk like behavior. It will be uncorrelated over times greater than the pulse duration as the transmitted pulse samples non-overlapping volumes of scattering centers. Frequency analysis of the IF signal in a window similar to the transmitted pulse envelope will therefore show shot-to-shot frequency deviations on the order of the inverse pulse duration reflecting the random phase rate variations. Like speckle, these deviations arise from the incoherent nature of the scattering process and diminish if the IF signal is averaged over times greater than a single range resolution cell (here the pulse duration). Apart from limiting the high SNR performance of a Doppler lidar, this shot-to-shot variance in velocity estimates has a

  20. Sensitivity and noise in GC-MS: Achieving low limits of detection for difficult analytes

    NASA Astrophysics Data System (ADS)

    Fialkov, Alexander B.; Steiner, Urs; Lehotay, Steven J.; Amirav, Aviv

    2007-01-01

    Gas chromatography-mass spectrometry (GC-MS) instrument limit of detection (LOD) is typically listed by major vendors as that of octafluoronaphthalene (OFN). Most current GC-MS instruments can achieve LODs in the low femtogram range. However, GC-MS LODs for realistic analytes in actual samples are often a few orders of magnitude higher than OFN's. Users seldom encounter 1 pg LOD in the single ion monitoring mode in their applications. We define this detectability difference as the "OFN gap." In this paper, we demonstrate and discuss how the OFN gap can be significantly reduced by the use of GC-MS with supersonic molecular beams (SMB). Experimental results were obtained with a recently developed GC-MS with SMB named 1200-SMB, that is based on the conversion of the Varian 1200 system into a GC-MS-MS with SMB. With this 1200-SMB system, the LOD of all types of analytes, including OFN, in real samples is significantly improved through the combination of: (a) enhanced molecular ion; (b) elimination of vacuum background noise; (c) elimination of mass independent noise; (d) elimination of ion source peak tailing and degradation; (e) significantly increased range of thermally labile and low volatility compounds that are amenable for analysis through lower sample elution temperatures; (f) reduced column bleed and ghost peaks through sample elution at lower temperatures; (g) improved compatibility with large volume injections; and (h) reduced matrix interferences through the combination of enhanced molecular ion and MS-MS. As a result, the 1200-SMB LODs of common and/or difficult compounds are much closer to its OFN LOD, even in complex matrices. We crossed the <1 fg OFN LOD milestone to achieve the lowest LOD to date using GC-MS, but more importantly, we attained LOD of 2 fg for diazinon, a common pesticide analyte. In another example, we achieved an LOD of 10 fg for underivatized testosterone, which is not amenable in traditional GC-MS analysis, and conducted many analyses

  1. Achieving large ends with limited means: grand strategy in global health.

    PubMed

    Curry, Leslie A; Luong, Minh A; Krumholz, Harlan M; Gaddis, John; Kennedy, Paul; Rulisa, Stephen; Taylor, Lauren; Bradley, Elizabeth H

    2010-06-01

    Unprecedented attention is focused on global health, with a four-fold increase in development assistance in the last 15 years and the scope of global health expanding beyond infectious disease to include chronic disease and health systems strengthening. As the global impact of health is more widely understood, it has become a crucial element of international relations, economic development, and foreign affairs. At this potential leverage point in the global health movement, the application of grand strategy is of critical importance. Grand strategy, i.e., the development and implementation of comprehensive plans of action to achieve large ends with limited means, has been refined through centuries of international relations and the management of states but has been inadequately applied to global health policy and implementation. We review key principles of grand strategy and demonstrate their applicability to a central global health issue: maternal mortality. The principles include: start with the end in mind, take an ecological approach, recognize that tactics matter, use positive deviance to characterize practical solutions and foster scale-up, and integrate timely intelligence and data into health interventions and improvement efforts. We advocate for the greater use of grand strategy in global health. PMID:24037468

  2. Occult peripheral artery disease is common and limits the benefit achieved in cardiac rehabilitation.

    PubMed

    Tam, Marty C; Longenecker, Chris T; Chow, Chen; Vest, Marianne; Sukeena, Richard; Madan Mohan, Sri K; Carman, Teresa; Parikh, Sahil A; Josephson, Richard A

    2016-04-01

    Cardiac rehabilitation (CR) has proven morbidity and mortality benefits in cardiovascular disease, which directly correlates with exercise performance achieved. Many patients in CR exercise at sub-optimal levels, without obvious limitations. Occult lower-extremity peripheral artery disease (PAD) may be a determinant of diminished exercise capacity and reduced benefit obtained from traditional CR. In this prospective study of 150 consecutive patients enrolled in Phase II CR, we describe the prevalence of PAD, the utility of externally validated screening questionnaires, and the observed impact on CR outcomes. Abnormal ankle-brachial indices (ABI) (< 0.9 and >1.4) were observed in 19% of those studied. The Edinburgh Claudication Questionnaire was insensitive for detecting PAD by low ABI in this population, and the Walking Impairment Questionnaire and a modified Gardner protocol demonstrated a lack of typical symptoms with low levels of activity. Importantly, at completion of traditional CR, exercise improvement measured in metabolic equivalents (METs) was worse in those with a low ABI compared to those with a normal ABI (+1.39 vs +2.41 METs, p = 0.002). In conclusion, PAD is common in patients in Phase II CR and often clinically occult. Screening based on standard questionnaires appears insensitive in this population, suggesting a need for a broad-based screening strategy with ABI measurements. In this study, undiagnosed PAD significantly attenuated improvements in exercise performance, which potentially has bearings on future clinical events. PMID:26850114

  3. Leaders who create change and those who manage it. How leaders limit success.

    PubMed

    Bruhn, John G

    2004-01-01

    There is no formula for either leading or managing change. Every organization and leader is unique. Leading change, however, is more art than science. Managing change is more science than art. Leading change is not simply a matter of a leader's style or personality; it is a leader's philosophy of how to generate and mobilize the total resources of an organization to enable it to be its best. Managing change, on the other hand, is focused on maintaining stability in an organization and containing the effects of unwanted and unexpected change. Leaders set the limits of success in their organizations by how they manage change. The different approaches of 2 leaders who have created change to correct problems in our health care delivery system are discussed. PMID:15192993

  4. Costs of mating competition limit male lifetime breeding success in polygynous mammals.

    PubMed

    Lukas, Dieter; Clutton-Brock, Tim

    2014-07-01

    Although differences in breeding lifespan are an important source of variation in male fitness, the factors affecting the breeding tenure of males have seldom been explored. Here, we use cross-species comparisons to investigate the correlates of breeding lifespan in male mammals. Our results show that male breeding lifespan depends on the extent of polygyny, which reflects the relative intensity of competition for access to females. Males have relatively short breeding tenure in species where individuals have the potential to monopolize mating with multiple females, and longer ones where individuals defend one female at a time. Male breeding tenure is also shorter in species in which females breed frequently than in those where females breed less frequently, suggesting that the costs of guarding females may contribute to limiting tenure length. As a consequence of these relationships, estimates of skew in male breeding success within seasons overestimate skew calculated across the lifetime and, in several polygynous species, variance in lifetime breeding success is not substantially higher in males than in females. PMID:24827443

  5. 40 CFR 449.10 - Effluent limitations representing the best available technology economically achievable (BAT).

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... available technology economically achievable (BAT). Except as provided in 40 CFR 125.30 through 125.32, any... best available technology economically achievable (BAT). 449.10 Section 449.10 Protection of... following requirements representing the degree of effluent reduction attainable by the application of...

  6. 40 CFR 449.10 - Effluent limitations representing the best available technology economically achievable (BAT).

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... available technology economically achievable (BAT). Except as provided in 40 CFR 125.30 through 125.32, any... best available technology economically achievable (BAT). 449.10 Section 449.10 Protection of... following requirements representing the degree of effluent reduction attainable by the application of...

  7. 40 CFR 449.10 - Effluent limitations representing the best available technology economically achievable (BAT).

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... available technology economically achievable (BAT). Except as provided in 40 CFR 125.30 through 125.32, any... best available technology economically achievable (BAT). 449.10 Section 449.10 Protection of... following requirements representing the degree of effluent reduction attainable by the application of...

  8. Is Sustainability Achievable? Exploring the Limits of Sustainability with Model Systems

    EPA Science Inventory

    Successful implementation of sustainability ideas in ecosystem management requires a basic understanding of the often nonlinear and non-intuitive relationships amongst different dimensions of sustainability, particularly the systemwide implications of human actions. This basic un...

  9. The Reciprocal Relations between Self-Concept, Motivation and Achievement: Juxtaposing Academic Self-Concept and Achievement Goal Orientations for Mathematics Success

    ERIC Educational Resources Information Center

    Seaton, Marjorie; Parker, Philip; Marsh, Herbert W.; Craven, Rhonda G.; Yeung, Alexander Seeshing

    2014-01-01

    Research suggests that motivated students and those with high academic self-concepts perform better academically. Although substantial evidence supports a reciprocal relation between academic self-concept and achievement, there is less evidence supporting a similar relation between achievement goal orientations and achievement. There is also a…

  10. Achieving successful evidence-based practice implementation in juvenile justice: The importance of diagnostic and evaluative capacity.

    PubMed

    Walker, Sarah Cusworth; Bumbarger, Brian K; Phillippi, Stephen W

    2015-10-01

    Evidence-based programs (EBPs) are an increasingly visible aspect of the treatment landscape in juvenile justice. Research demonstrates that such programs yield positive returns on investment and are replacing more expensive, less effective options. However, programs are unlikely to produce expected benefits when they are not well-matched to community needs, not sustained and do not reach sufficient reach and scale. We argue that achieving these benchmarks for successful implementation will require states and county governments to invest in data-driven decision infrastructure in order to respond in a rigorous and flexible way to shifting political and funding climates. We conceptualize this infrastructure as diagnostic capacity and evaluative capacity: Diagnostic capacity is defined as the process of selecting appropriate programing and evaluative capacity is defined as the ability to monitor and evaluate progress. Policy analyses of Washington State, Pennsylvania and Louisiana's program implementation successes are used to illustrate the benefits of diagnostic and evaluate capacity as a critical element of EBP implementation. PMID:26141970

  11. Vegetation succession and impacts of biointrusion on covers used to limit acid mine drainage.

    PubMed

    Smirnova, Evgeniya; Bussière, Bruno; Tremblay, Francine; Bergeron, Yves

    2011-01-01

    A cover with capillary barrier effects (CCBE) was constructed in 1998 on the abandoned Lorraine mine tailings impoundment to limit the generation of acid mine drainage. The Ministry of Natural Resources and Fauna of Quebec (MRNF) is responsible for the site and for all restoration works on it, including CCBE construction. The CCBE is made up of three layers: a 0.3-m layer of sand used as a support and capillary break layer; a moisture-retaining layer with a thickness of 0.5 m (this layer is constructed of a nonplastic silt); and a 0.3-m sand and gravel layer on top. The main objective of the CCBE is to maintain one (or more) of the layers at a high degree of water saturation to impede oxygen migration and acid generation. Vegetation succession on the Lorraine CCBE results in an improvement in soil conditions, leading to the installation of deep-rooted species, which could represent a risk to CCBE long-term performance. Hence, the characterization of vegetation succession is an important aspect of the monitoring strategy for the Lorraine CCBE. Species occurrence was documented, and depth of tree roots was measured by excavation on a regular basis. Eight functional groups of plants were identified; herbaceous plants were the most abundant ecological plant groups. Tree ring counts confirmed that tree colonization started the year of CCBE construction (1999). Of the 11 tree species identified, the most abundant were poplar (Populus spp.), paper birch (Betula payrifera Marsh.), black spruce (Picea mariana Mill.), and willow (Salix spp.). Significant differences in occurrence related to environmental conditions were observed for most functional groups. Root excavation showed that tree roots exceeded the depth of the protective layer and started to reach the moisture-retaining layer; in 2008, root average depth was 0.4 m and the maximal root depth was 1.7 m. PMID:21488502

  12. Bi-centenary of successes of Fourier theorem: its power and limitations in optical system designs

    NASA Astrophysics Data System (ADS)

    Roychoudhuri, Chandrasekhar

    2007-09-01

    We celebrate the two hundred years of successful use of the Fourier theorem in optics. However, there is a great enigma associated with the Fourier transform integral. It is one of the most pervasively productive and useful tool of physics and optics because its foundation is based on the superposition of harmonic functions and yet we have never declared it as a principle of physics for valid reasons. And, yet there are a good number of situations where we pretend it to be equivalent to the superposition principle of physics, creating epistemological problems of enormous magnitude. The purpose of the paper is to elucidate the problems while underscoring the successes and the elegance of the Fourier theorem, which are not explicitly discussed in the literature. We will make our point by taking six major engineering fields of optics and show in each case why it works and under what restricted conditions by bringing in the relevant physics principles. The fields are (i) optical signal processing, (ii) Fourier transform spectrometry, (iii) classical spectrometry of pulsed light, (iv) coherence theory, (v) laser mode locking and (vi) pulse broadening. We underscore that mathematical Fourier frequencies, not being physical frequencies, cannot generate real physical effects on our detectors. Appreciation of this fundamental issue will open up ways to be innovative in many new optical instrument designs. We underscore the importance of always validating our design platforms based on valid physics principles (actual processes undergoing in nature) captured by an appropriate hypothesis based on diverse observations. This paper is a comprehensive view of the power and limitations of Fourier Transform by summarizing a series of SPIE conference papers presented during 2003-2007.

  13. Bandwidth efficient coding: Theoretical limits and real achievements. Error control techniques for satellite and space communications

    NASA Technical Reports Server (NTRS)

    Costello, Daniel J., Jr.; Courturier, Servanne; Levy, Yannick; Mills, Diane G.; Perez, Lance C.; Wang, Fu-Quan

    1993-01-01

    In his seminal 1948 paper 'The Mathematical Theory of Communication,' Claude E. Shannon derived the 'channel coding theorem' which has an explicit upper bound, called the channel capacity, on the rate at which 'information' could be transmitted reliably on a given communication channel. Shannon's result was an existence theorem and did not give specific codes to achieve the bound. Some skeptics have claimed that the dramatic performance improvements predicted by Shannon are not achievable in practice. The advances made in the area of coded modulation in the past decade have made communications engineers optimistic about the possibility of achieving or at least coming close to channel capacity. Here we consider the possibility in the light of current research results.

  14. Energy saving achieved by limited filamentous bulking sludge under low dissolved oxygen.

    PubMed

    Guo, Jian-Hua; Peng, Yong-Zhen; Peng, Cheng-Yao; Wang, Shu-Ying; Chen, Ying; Huang, Hui-Jun; Sun, Zhi-Rong

    2010-02-01

    Limited filamentous bulking caused by low dissolved oxygen (DO) was proposed to establish a low energy consumption wastewater treatment system. This method for energy saving was derived from two full-scale field observations, which showed pollutants removal would be enhanced and energy consumption could be reduced by at least 10% using limited filamentous bulking. Furthermore, preliminary investigation including the abundance evaluation and the identification of filamentous bacteria demonstrated that the limited filamentous bulking could be repeated steadily in a lab-scale anoxic-oxic reactor fed with domestic wastewater. The sludge loss did not occur in the secondary clarifier, while COD and total nitrogen removal efficiencies were improved by controlling DO for optimal filamentous bacterial population. Suspended solids in effluent were negligible and turbidity was lower than 2 NTU, which were distinctly lower than those under no bulking. Theoretical and experimental results indicated the aeration consumption could be saved by the application of limited filamentous bulking. PMID:19837583

  15. Achievement Emotions as Predictors of High School Science Success among African-American and European American Students

    ERIC Educational Resources Information Center

    Bowe, Marilyn Louise Simmons

    2012-01-01

    The literature includes few studies of the interrelations of achievement goals and achievement emotions with respect to minority students and science achievement. The objective of this study was to test the control-value theory (CVT) of achievement emotions to determine if the eight discrete achievement emotions would be predictive of test scores…

  16. The global health network on alcohol control: successes and limits of evidence-based advocacy.

    PubMed

    Schmitz, Hans Peter

    2016-04-01

    Global efforts to address alcohol harm have significantly increased since the mid-1990 s. By 2010, the World Health Organization (WHO) had adopted the non-binding Global Strategy to Reduce the Harmful Use of Alcohol. This study investigates the role of a global health network, anchored by the Global Alcohol Policy Alliance (GAPA), which has used scientific evidence on harm and effective interventions to advocate for greater global public health efforts to reduce alcohol harm. The study uses process-tracing methodology and expert interviews to evaluate the accomplishments and limitations of this network. The study documents how network members have not only contributed to greater global awareness about alcohol harm, but also advanced a public health approach to addressing this issue at the global level. Although the current network represents an expanding global coalition of like-minded individuals, it faces considerable challenges in advancing its cause towards successful implementation of effective alcohol control policies across many low- and middle-income countries (LMICs). The analysis reveals a need to transform the network into a formal coalition of regional and national organizations that represent a broader variety of constituents, including the medical community, consumer groups and development-focused non-governmental organizations. Considering the growing harm of alcohol abuse in LMICs and the availability of proven and cost-effective public health interventions, alcohol control represents an excellent 'buy' for donors interested in addressing non-communicable diseases. Alcohol control has broad beneficial effects for human development, including promoting road safety and reducing domestic violence and health care costs across a wide variety of illnesses caused by alcohol consumption. PMID:26276763

  17. [The historical achievement and the limits of the work of Sigmund Freud (1855-1939)].

    PubMed

    Katzenstein, A; Thom, A

    1982-02-01

    In this paper written on the occasion of Sigmund Freud's 125th birthday, an attempt is made to strike a balance of earlier marxist assessments of Freud's work. After a short presentation of the more important biographical and work-historical data, mainly Freud's antropological basic conceptions and their problematic consequences for his personality-theory are dealt with. Freud's historically important achievement is seen in the opening of a psychological access to the understanding of neuroses as well as the discovery of dynamic processes in the psychotherapeutic encounter. PMID:7045908

  18. The Path to Career Success: High School Achievement, Certainty of Career Choice, and College Readiness Make a Difference. Issues In College Success

    ERIC Educational Resources Information Center

    ACT, Inc., 2009

    2009-01-01

    It is essential for all students to be ready for college and career when they graduate from high school. Postsecondary educators expect high school graduates to be prepared academically for success in postsecondary education, which in turn influences success in the work world. Employers continue to call for workers to have the tools needed to…

  19. Achieving Success in Small Business: A Self-Instruction Program for Small Business Owner-Managers. Success in Small Business: Luck or Pluck?

    ERIC Educational Resources Information Center

    Virginia Polytechnic Inst. and State Univ., Blacksburg. Div. of Vocational-Technical Education.

    This self-instructional module on success in small business is the first in a set of twelve modules designed for small business owner-managers. Competency objectives for this module are (1) ability to evaluate chances of success based upon one's personality and knowledge of good business practices and (2) ability to determine one's commitment to…

  20. Achieving College Success: The Impact of the College Success/STEM Program on Students' Matriculation to and Persistence in College. Research Brief

    ERIC Educational Resources Information Center

    Lane, Brett; Souvanna, Phomdaen

    2014-01-01

    This College Success Research Brief is one of a series of briefs documenting the implementation and impact of Mass Insight's College Success/STEM program. The research briefs are intended to share key findings, highlight ongoing questions and lines of inquiry, and inform the thinking of practitioners and policymakers on how to scale up efforts to…

  1. Mode-converters for rectangular-core fiber amplifiers to achieve diffraction-limited power scaling.

    PubMed

    Sridharan, Arun Kumar; Pax, Paul H; Heebner, John E; Drachenberg, Derrek R; Armstrong, J Paul; Dawson, Jay W

    2012-12-17

    A rectangular-core (ribbon) fiber that guides and amplifies a single higher-order-mode (HOM) can potentially scale to much higher average powers than what is possible in traditional circular-core large-mode-area fibers. Such an amplifier would require mode-conversion at the input to enable interfacing with seed sources that typically output TEM(00) mode radiation and at the output to generate diffraction-limited radiation for end-user applications. We present the first simulation and experimental results of a mode conversion technique that uses two diffractive-optic-elements in conjugate Fourier planes to convert a diffraction limited TEM(00) mode to the HOM of a ribbon fiber. Mode-conversion-efficiency is approximately 84% and can theoretically approach 100%. We also demonstrate a mode-converter system that converts a single HOM of a ribbon fiber back to a diffraction-limited TEM(00) mode. Conversion efficiency is a record 80.5%. PMID:23263119

  2. Narrowing the Achievement Gap and Sustaining Success: A Qualitative Study of the Norms, Practices, and Programs of a Successful High School with Urban Characteristics

    ERIC Educational Resources Information Center

    Senesac, Donald Raymond

    2010-01-01

    The academic achievement gap is the manifestation of differential learning outcomes for students typified by membership in an ethnic minority sub group or economically disadvantaged sub group. Addressing the achievement gap has become vital for the nation as a whole, and even more critical for the state of California because the majority of…

  3. A Study of Home Environment, Academic Achievement and Teaching Aptitude on Training Success of Pre-Service Elementary Teachers of India

    ERIC Educational Resources Information Center

    Rani, Sunita; Siddiqui, M. A.

    2015-01-01

    The primary intend of the study was to explore the relationship of Arts, Science and Commerce stream and training success and the influence of Home Environment, Academic Achievement and Teaching Aptitude on training success of ETE trainees. The study analyzed the numerical data from a survey of 380 teacher trainees of three DIETs of Delhi, India.…

  4. Production of Biodiesel at Kinetic Limit Achieved in a Centrifugal Reactor/Separator

    SciTech Connect

    McFarlane, Joanna; Tsouris, Costas; Birdwell Jr, Joseph F; Lee, Denise L; Jennings, Hal L; Pahmer Boitrago, Amy M; Terpstra, Sarah M

    2010-01-01

    The kinetics of the transesterification of soybean oil has been investigated in a centrifugal reactor at temperatures from 45 to 80 C and pressures up to 2.6 bar using gas chromatography flame ionization detection (GC-FID) and infrared (IR) spectroscopy. The yields of product methyl esters were quantified using IR, proton Nuclear Magnetic Resonance (H1NMR), and viscosity measurements and were found to achieve 90% of the yield in 2 min; however, to meet ASTM specifications with one pass through the reactor, a 15 min residence time was needed. Performance was improved by sequential reactions, allowing separation of by-product glycerine and injection of additional small aliquots of methanol. The kinetics was modeled using a three-step mechanism of reversible reactions, which was used to predict performance at commercial scale. The mechanism correctly predicted the exponential decline in reaction rate as the concentration of the products allowed significant reverse reactions to occur.

  5. Microfluidic means of achieving attomolar detection limits with molecular beacon probes.

    PubMed

    Puleo, Christopher M; Wang, Tza-Huei

    2009-04-21

    We used inline, micro-evaporators to concentrate and transport DNA targets to a nanoliter single molecule fluorescence detection chamber for subsequent molecular beacon probe hybridization and analysis. This use of solvent removal as a unique means of target transport in a microanalytical platform led to a greater than 5000-fold concentration enhancement and detection limits that pushed below the femtomolar barrier commonly reported using confocal fluorescence detection. This simple microliter-to-nanoliter interconnect for single molecule counting analysis resolved several common limitations, including the need for excessive fluorescent probe concentrations at low target levels and inefficiencies in direct handling of highly dilute biological samples. In this report, the hundreds of bacteria-specific DNA molecules contained in approximately 25 microliters of a 50 aM sample were shuttled to a four nanoliter detection chamber through micro-evaporation. Here, the previously undetectable targets were enhanced to the pM regime and underwent probe hybridization and highly-efficient fluorescent event analysis via microfluidic recirculation through the confocal detection volume. This use of microfluidics in a single molecule detection (SMD) platform delivered unmatched sensitivity and introduced compliment technologies that may serve to bring SMD to more widespread use in replacing conventional methodologies for detecting rare target biomolecules in both research and clinical labs. PMID:19350088

  6. Fermentative production of lactic acid from renewable materials: recent achievements, prospects, and limits.

    PubMed

    Wang, Ying; Tashiro, Yukihiro; Sonomoto, Kenji

    2015-01-01

    The development and implementation of renewable materials for the production of versatile chemical resources have gained considerable attention recently, as this offers an alternative to the environmental problems caused by the petroleum industry and the limited supply of fossil resources. Therefore, the concept of utilizing biomass or wastes from agricultural and industrial residues to produce useful chemical products has been widely accepted. Lactic acid plays an important role due to its versatile application in the food, medical, and cosmetics industries and as a potential raw material for the manufacture of biodegradable plastics. Currently, the fermentative production of optically pure lactic acid has increased because of the prospects of environmental friendliness and cost-effectiveness. In order to produce lactic acid with high yield and optical purity, many studies focus on wild microorganisms and metabolically engineered strains. This article reviews the most recent advances in the biotechnological production of lactic acid mainly by lactic acid bacteria, and discusses the feasibility and potential of various processes. PMID:25077706

  7. Recent advances on enzymatic glucose/oxygen and hydrogen/oxygen biofuel cells: Achievements and limitations

    NASA Astrophysics Data System (ADS)

    Cosnier, Serge; J. Gross, Andrew; Le Goff, Alan; Holzinger, Michael

    2016-09-01

    The possibility of producing electrical power from chemical energy with biological catalysts has induced the development of biofuel cells as viable energy sources for powering portable and implanted electronic devices. These power sources employ biocatalysts, called enzymes, which are highly specific and catalytic towards the oxidation of a biofuel and the reduction of oxygen or hydrogen peroxide. Enzymes, on one hand, are promising candidates to replace expensive noble metal-based catalysts in fuel cell research. On the other hand, they offer the exciting prospect of a new generation of fuel cells which harvest energy from body fluids. Biofuel cells which use glucose as a fuel are particularly interesting for generating electricity to power electronic devices inside a living body. Hydrogen consuming biofuel cells represent an emerging alternative to platinum catalysts due to comparable efficiencies and the capability to operate at lower temperatures. Currently, these technologies are not competitive with existing commercialised fuel cell devices due to limitations including insufficient power outputs and lifetimes. The advantages and challenges facing glucose biofuel cells for implantation and hydrogen biofuel cells will be summarised along with recent promising advances and the future prospects of these exotic energy-harvesting devices.

  8. The Superintendent Beliefs and Leadership Practices in a School District that Has Successfully Increased the Achievement of Traditionally Marginalized Students

    ERIC Educational Resources Information Center

    Fairbanks-Schutz, Jo-Ellen M.

    2010-01-01

    Superintendent leadership can influence student achievement and with the alarming gap between the academic achievement of traditionally marginalized students and their peers, superintendents have an ethical duty to lead their districts in closing these achievement gaps. Spillane, Halverson, and Diamond (2001) suggested that to have a more complete…

  9. Successes and Challenges in an Integrated Tuberculosis/HIV Clinic in a Rural, Resource-Limited Setting: Experiences from Kericho, Kenya

    PubMed Central

    Shaffer, Douglas N.; Obiero, Eunice T.; Bett, Josphat B.; Kiptoo, Ignatius N.; Maswai, Jonah K.; Sawe, Fredrick K.; Carter, E. Jane

    2012-01-01

    Objective. To describe TB/HIV clinic outcomes in a rural, Ministry of Health hospital. Design. Retrospective, secondary analyses. Descriptive statistics and logistic regression analyses evaluated baseline characteristics and outcomes. Results. Of 1,911 patients, 89.8% were adults aged 32.0 (±12.6) years with baseline CD4 = 243.3 (±271.0), 18.2% < 50 cells/mm3. Pulmonary (84.8%, (32.2% smear positive)) exceeded extrapulmonary TB (15.2%). Over 5 years, treatment success rose from 40.0% to 74.6%, lost to follow-up dropped from 36.0% to 12.5%, and deaths fell from 20.0% to 5.4%. For patients starting ART after TB treatment, those with CD4 ≥ 50 cells/mm3 were twice as likely to achieve treatment success (OR = 2.0, 95% CI = 1.3–3.1) compared to those with CD4 < 50 cells/mm3. Patients initiating ART at/after 2 months were twice as likely to achieve treatment success (OR = 2.0, 95% CI = 1.3–3.3). Yearly, odds of treatment success improved by 20% (OR = 1.2, 95% CI = 1.0–1.5). Conclusions. An integrated TB/HIV clinic with acceptable outcomes is a feasible goal in resource-limited settings. PMID:22400104

  10. A computational approach to achieve situational awareness from limited observations of a complex system

    NASA Astrophysics Data System (ADS)

    Sherwin, Jason

    At the start of the 21st century, the topic of complexity remains a formidable challenge in engineering, science and other aspects of our world. It seems that when disaster strikes it is because some complex and unforeseen interaction causes the unfortunate outcome. Why did the financial system of the world meltdown in 2008--2009? Why are global temperatures on the rise? These questions and other ones like them are difficult to answer because they pertain to contexts that require lengthy descriptions. In other words, these contexts are complex. But we as human beings are able to observe and recognize this thing we call 'complexity'. Furthermore, we recognize that there are certain elements of a context that form a system of complex interactions---i.e., a complex system. Many researchers have even noted similarities between seemingly disparate complex systems. Do sub-atomic systems bear resemblance to weather patterns? Or do human-based economic systems bear resemblance to macroscopic flows? Where do we draw the line in their resemblance? These are the kinds of questions that are asked in complex systems research. And the ability to recognize complexity is not only limited to analytic research. Rather, there are many known examples of humans who, not only observe and recognize but also, operate complex systems. How do they do it? Is there something superhuman about these people or is there something common to human anatomy that makes it possible to fly a plane? Or to drive a bus? Or to operate a nuclear power plant? Or to play Chopin's etudes on the piano? In each of these examples, a human being operates a complex system of machinery, whether it is a plane, a bus, a nuclear power plant or a piano. What is the common thread running through these abilities? The study of situational awareness (SA) examines how people do these types of remarkable feats. It is not a bottom-up science though because it relies on finding general principles running through a host of varied

  11. International Collaboration in Organizations Promoting Geography Education: Exploring Success and Acknowledging Limitations

    ERIC Educational Resources Information Center

    Donert, Karl; Hay, Iain; Theobald, Rebecca; Valiunaite, Vita; Wakefield, Kelly

    2011-01-01

    Effective teaching about many of the geographical issues now confronting Earth and humanity requires collective approaches and shared solutions. It follows, therefore, that there is a need to better understand the basis of and process for sustaining successful international collaboration among geography educators. This paper first examines some of…

  12. A Climate for Academic Success: How School Climate Distinguishes Schools That Are Beating the Achievement Odds. Full Report

    ERIC Educational Resources Information Center

    Voight, Adam; Austin, Gregory; Hanson, Thomas

    2013-01-01

    This report, written by WestEd's Adam Voight, Gregory Austin, and Thomas Hanson, describes a study that examines what makes successful schools different from other schools. Rather than define success in absolute terms, this study's definition is based on whether or not a school is performing better than predicted given the characteristics of the…

  13. A Canonical Analysis of Successful and Unsuccessful High Schools: Accommodating Multiple Sources of Achievement Data in School Leadership

    ERIC Educational Resources Information Center

    Knoeppel, Robert C.; Rinehart, James S.

    2010-01-01

    What distinguishes successful schools from unsuccessful schools? This question has relevance for the practice of educational leadership as well as the preparation of leaders. Successful schools are led by principals who set the direction and influence student learning, and who change the instructional process by focusing deliberately on teaching…

  14. A Climate for Academic Success: How School Climate Distinguishes Schools That Are Beating the Achievement Odds. Report Summary

    ERIC Educational Resources Information Center

    Voight, Adam; Austin, Gregory; Hanson, Thomas

    2013-01-01

    This report, written by WestEd's Adam Voight, Gregory Austin, and Thomas Hanson, describes a study that examines what makes successful schools different from other schools. Rather than define success in absolute terms, this study's definition is based on whether or not a school is performing better than predicted given the characteristics of the…

  15. Beginning Mathematics Teachers from Alternative Certification Programs: Their Success in the Classroom and How They Achieved It

    ERIC Educational Resources Information Center

    Ham, Edward

    2011-01-01

    This dissertation focuses on beginning mathematics teachers from alternative certification programs and their perceptions of what is required to be successful. A mixed-methods research study was completed with several goals in mind: (1) identifying how beginning mathematics teachers define success in the classroom during their earliest years, (2)…

  16. Bright and Beautiful: High Achieving Girls, Ambivalent Femininities, and the Feminization of Success in the Primary School

    ERIC Educational Resources Information Center

    Renold, Emma; Allan, Alexandra

    2006-01-01

    This paper refocuses attention on and problematizes girls' experiences of school achievement and the construction of schoolgirl femininities. In particular, it centres on the relatively neglected experiences and identity work of high achieving primary school girls. Drawing upon ethnographic data (observations, interviews, and pupil diaries) from a…

  17. A Reflection on Adaptability, Achievement Motivation and Success of Central and Eastern European Students in One English University

    ERIC Educational Resources Information Center

    Jankowska, Maja

    2011-01-01

    This article reflects on and discusses Central and Eastern European (CEE) learners' adaptability and achievement in one English post-1992 university. There appears to be a scarcity of studies of values, beliefs, attitudes and needs as well as achievement (and factors contributing to it) between CEE and other learners. Since the expansion of the…

  18. Channel Flow Model of Extrusion of the Higher Himalaya- Successes & Limitations

    NASA Astrophysics Data System (ADS)

    Mukherjee, S.

    2009-04-01

    During laminar ‘channel flow'/‘Plane Poiseuille flow' of an incompressible Newtonian viscous fluid through a very long parallel horizontal static walls of a channel due to a pressure gradient, a parabolic velocity profile is produced. The sense of ductile shearing across the middle of the channel is opposite. Grujic et al. (1996) and Beaumont et al. (2001) applied this flow mechanism to explain the extrusion of the Higher Himalaya (HH). In their sequel, the Dalhousie school of modelers kept enumerating this extrusion model. Successes of the channel flow extrusion model are that it explains (1) extensional top-to-NE sense of ductile shearing in the South Tibetan Detachment System (STDS) simultaneous to the top-to-SW sense of compressional shearing in the remainder of the HH; (2) fluid activity below the southern part of the Tibetan plateau; and (3) inverted metamorphism in the HH. However, limitations of this extrusion model are as follows. (1) A previous top-to-SW sense of compressional shearing in the STDS is not taken care by the model alone. (2) The thickness of the STDS in reality is thinner than the remainder of the HH. In the model, on the other hand, their thicknesses should be the same. (3) Presence of a second strand of the STDS inside the HH that is absent in some sections of the mountain chain remained unexplained in the model. (4) The ductile shear fabric of more commonly sigmoid-, and less commonly parallelogram- and lenticular geometries are found inside the HH. However, had the channel flow been the extrusion mechanism and rocks deformed as a Newtonian fluid, parabolic shear fabrics are expected. Additionally, can the genesis of the intrafolial folds inside the two strands of the STDS (e.g. Mukherjee, 2007) be explained by the channel flow mechanism? (5) Regions and their spatial extents with different senses of ductile shearing would change if the rocks deformed Non-Newtonically. The exact geometry of the velocity profile will depend on the

  19. Achievement Emotions as Predictors of High School Science Success Among African-American and European American Students

    NASA Astrophysics Data System (ADS)

    Bowe, Marilyn Louise Simmons

    The literature includes few studies of the interrelations of achievement goals and achievement emotions with respect to minority students and science achievement. The objective of this study was to test the control-value theory (CVT) of achievement emotions to determine if the eight discrete achievement emotions would be predictive of test scores on the High School Graduation Test (GHSGT)-Science for African-American compared to European-American science students. Convenience cluster sampling was employed to select 160 students who were all juniors in the same public high school at the time that they took the GHSGT-Science. The central research question for this study aimed to uncover whether any of the eight achievement emotions identified in CVT would contribute significantly to the predictability of science achievement as measured by GHSGT-Science scores. Data were collected using a nonexperimental, cross sectional design survey. Data were analyzed using a hierarchal, forced entry, multiple regression analysis. Key results indicated that the eight achievement emotions were predictive of GHSGT-Science score outcomes. Positive social change at the individual level could reflect a boost in confidence for African American science students and help decrease the achievement gap in science, technology, engineering, and mathematics (STEM) endeavors between European Americans and African-American students. Educators may consider the importance of achievement emotions in science outcomes by including social emotional learning (SEL) as a part of the regular science curriculum. Future researchers should repeat the study in a school district where the population is available to support the desired cluster sample of equal parts European Americans to African Americans and male to female students.

  20. The successes and limitations of international law and the International Court of Justice.

    PubMed

    Suter, Keith

    2004-01-01

    The first two sections of this article deal with the irony that international law has severe limitations, yet it also has a good record for compliance. The third section introduces the International Court of Justice (ICJ), and the fourth section deals specifically with the limitations of the ICJ. The article concludes with some ideas for action. Its main point is that international law is often a neglected topic, even by non-governmental organisations (NGOs). International law needs to be brought in from the cold, and there should be more support from the NGO community for the ICJ. PMID:15688885

  1. Tropical winter habitat limits reproductive success on the temperate breeding grounds in a migratory bird.

    PubMed Central

    Norris, D. Ryan; Marra, Peter P.; Kyser, T. Kurt; Sherry, Thomas W.; Ratcliffe, Laurene M.

    2004-01-01

    Identifying the factors that control population dynamics in migratory animals has been constrained by our inability to track individuals throughout the annual cycle. Using stable carbon isotopes, we show that the reproductive success of a long-distance migratory bird is influenced by the quality of habitat located thousands of kilometres away on tropical wintering grounds. For male American redstarts (Setophaga ruticilla), winter habitat quality influenced arrival date on the breeding grounds, which in turn affected key variables associated with reproduction, including the number of young fledged. Based on a winter-habitat model, females occupying high-quality winter habitat were predicted to produce more than two additional young and to fledge offspring up to a month earlier compared with females wintering in poor-quality habitat. Differences of this magnitude are highly important considering redstarts are single brooded, lay clutches of only three to five eggs and spend only two-and-a-half months on the breeding grounds. Results from this study indicate the importance of understanding how periods of the annual cycle interact for migratory animals. Continued loss of tropical wintering habitat could have negative effects on migratory populations in the following breeding season, minimizing density-dependent effects on the breeding grounds and leading to further population declines. If conservation efforts are to be successful, strategies must incorporate measures to protect all the habitats used during the entire annual cycle of migratory animals. PMID:15002772

  2. The Relationship of Home-Career Conflict, Fear of Success, and Sex-Role Orientation to Achievement and Career Motivation Given Different Levels of Perceived Environmental Support.

    ERIC Educational Resources Information Center

    Farmer, Helen S.

    The purpose of the study was to investigate the relationship between Home-Career (H-C) conflict, Fear of success (FOS), achievement (n Ach) and Career motivation (CM) for women of differing sex role orientations. In addition, measures of self-esteem, risk-taking, perceived community support and early socialization were obtained. A positive…

  3. Achieving the Dream in Connecticut: State Policies Affecting Access to, and Success in, Community Colleges for Students of Color and Low-Income Students

    ERIC Educational Resources Information Center

    Dougherty, Kevin J.; Reid, Monica

    2006-01-01

    This report provides an audit of state policies in Connecticut affecting access to, and success in, community colleges for students of color and low-income students. It was commissioned by Lumina Foundation for Education as part of a series of policy audits of the states involved in Achieving the Dream. Lumina Foundation is the primary funder of…

  4. Achieving the Dream in Ohio: State Policies Affecting Access to, and Success in, Community Colleges for Students of Color and Low-Income Students

    ERIC Educational Resources Information Center

    Dougherty, Kevin J.; Marshall, James; Soonachan, Andrea

    2006-01-01

    This report provides an audit of state policies in Ohio affecting access to, and success in, community colleges for students of color and low-income students. It was commissioned by Lumina Foundation for Education as part of a series of policy audits of the states involved in Achieving the Dream. Lumina Foundation is the primary funder of the…

  5. Using School Reform Models to Improve Reading Achievement: A Longitudinal Study of Direct Instruction and Success for All in an Urban District

    ERIC Educational Resources Information Center

    Ross, Steven M.; Nunnery, John A.; Goldfeder, Elizabeth; McDonald, Aaron; Rachor, Robert; Hornbeck, Matthew; Fleischman, Steve

    2004-01-01

    This research examined the effectiveness in an urban school district of 2 of the most widely used Comprehensive School Reform (CSR) programs-Direct Instruction (DI), implemented in 9 district elementary schools, and Success for All (SFA), implemented in 2 elementary schools. In examining impacts on student achievement and school change outcomes…

  6. I Know Who I Am, Do You?: Identity and Academic Achievement of Successful African American Male Adolescents in an Urban Pilot High School in the United States

    ERIC Educational Resources Information Center

    Wright, Brian L.

    2011-01-01

    This study explores racial-ethnic identity and academic achievement of five young African American men in 11th and 12th grade in an urban pilot high school. Data gathered through individual and group interviews and a questionnaire were analyzed to understand how academically successful African American male adolescents interpret their social and…

  7. The Impact of Interpersonal Interaction on Academic Engagement and Achievement in a College Success Strategies Course with a Blended Learning Instructional Model

    ERIC Educational Resources Information Center

    Mosser, Brent Steven

    2010-01-01

    A quasi-experiment was carried out in a college success strategies course to evaluate the impact of structured interpersonal interaction on undergraduate students' Academic Engagement and Academic Achievement. The course, EPL 259: Individual Learning and Motivation, employs a blended learning instructional model that requires students to spend the…

  8. The Impacts of Success for All on Reading Achievement in Grades 3-5: Does Intervening during the Later Elementary Grades Produce the Same Benefits as Intervening Early?

    ERIC Educational Resources Information Center

    Hanselman, Paul; Borman, Geoffrey D.

    2013-01-01

    We evaluate the impact of Success for All literacy instruction in grades 3 through 5 using data from the same cluster randomized trial used to evaluate effects in the earlier grades (K-2). In contrast to the early benefits, there is no effect on reading achievement in the later grades, either overall or for students and schools with high or low…

  9. School Improvement in Petersburg: A Comprehensive Three-Year Study of the Partnership for Achieving Successful Schools Initiative Model IV Intervention. Final Evaluation Report

    ERIC Educational Resources Information Center

    Edwards, Joanna; Smith, Karen; Marr, Linda; Wyshynski, Laura

    2005-01-01

    Dr. Jo Lynne DeMary, Virginia's state superintendent of public instruction, requested that the Appalachia Educational Laboratory at Edvantia work in partnership with the Virginia Department of Education and Petersburg City Schools to design and test the Partnership for Achieving Successful Schools Initiative (PA+SS) Model IV Intervention. The goal…

  10. Overcoming the Solubility Limit with Solubility-Enhancement Tags: Successful Applications in Biomolecular NMR Studies

    PubMed Central

    Zhou, Pei; Wagner, Gerhard

    2010-01-01

    Although the rapid progress of NMR technology has significantly expanded the range of NMR-trackable systems, preparation of NMR-suitable samples that are highly soluble and stable remains a bottleneck for studies of many biological systems. The application of solubility-enhancement tags (SETs) has been highly effective in overcoming solubility and sample stability issues and has enabled structural studies of important biological systems previously deemed unapproachable by solution NMR techniques. In this review, we provide a brief survey of the development and successful applications of the SET strategy in biomolecular NMR. We also comment on the criteria for choosing optimal SETs, such as for differently charged target proteins, and recent new developments on NMR-invisible SETs. PMID:19731047

  11. Addressing Achievement Gaps: Advancing Success for Black Men in College. Policy Notes. Volume 22, Number 1, Spring 2015

    ERIC Educational Resources Information Center

    Yaffe, Deborah

    2015-01-01

    This issue of ETS Policy Notes (Vol. 22, No. 1) provides highlights from a recent symposium sponsored by ETS and the Children Defense Fund (CDF), "Advancing Success for Black Men in College," held on June 23, 2014, in Washington, DC. The symposium is part of a two-conference series: It was the 18th of ETS's "Addressing Achievement…

  12. A Methodology to Assist Faculty in Developing Successful Approaches for Achieving Learner Centered Information Systems Curriculum Outcomes: Team Based Methods

    ERIC Educational Resources Information Center

    Wagner, Teresa A.; Longenecker, Herbert E., Jr.; Landry, Jeffrey P.; Lusk, C. Scott; Saulnier, Bruce M.

    2008-01-01

    All industries face the interrelated challenges of identifying and training the critical skills needed to be successful in the workplace. Specifically of interest to the information systems field is that any newly trained IS professional has to be equipped to solve increasingly difficult problems with great confidence and competence. In this paper…

  13. How to Survive and Prosper in the Real World after Graduation: An Unconventional Approach to Achieving Your Success.

    ERIC Educational Resources Information Center

    Connors, Shawn M.

    Unconventional advice to help college graduates be successful is offered. Ways to find sources of money (i.e., jobs) are described, including: using services or products offered through the mail, making phone calls to build a network of contacts in a particular industry, attending seminars to further one's knowledge of a field, learning about…

  14. "If You Can Dream It, You Can Achieve It." Parent Memorable Messages as Indicators of College Student Success

    ERIC Educational Resources Information Center

    Kranstuber, Haley; Carr, Kristen; Hosek, Angela M.

    2012-01-01

    This study investigated various aspects of parents' memorable messages about college as they relate to indicators of college student success. Findings revealed that parents' memorable messages about college focused on working (and playing) hard, the necessity of attending college, providing encouragement and support, and general advice based on…

  15. Report on Workstation Uses: Effects of Success for All on the Reading Achievement of First Graders in California Bilingual Programs.

    ERIC Educational Resources Information Center

    Dianda, Marcella R.; Flaherty, John F.

    A study assessed the effectiveness of the Success for All Program for grade-one English-as-a-Second-Language (ESL) learners in bilingual or ESL programs in three California elementary schools. The reading instruction program provides both native (in this case, Spanish) language support as well as English language instruction and materials. The…

  16. Giving Students a Chance to Achieve: Getting Off to a Fast and Successful Start in Grade Nine

    ERIC Educational Resources Information Center

    Bottoms, Gene; Timberlake, Allison

    2007-01-01

    Students who successfully complete grade nine are substantially more likely to graduate from high school than are students who fail the freshman year. However, many middle grades students are not academically prepared for ninth grade. This report addresses five questions that can help school leaders ensure that middle grades students know the…

  17. Syntheses of Research and Practice: Implications for Achieving Schooling Success for Children at Risk. Publication Series #93-5.

    ERIC Educational Resources Information Center

    Alves-Zervos, K. L., Ed.; Shafer, J. R., Ed.

    This six-article document examines the research base that can be used in formulating plans to improve the chances of schooling success for all students. Each article summarizes well-confirmed knowledge in a particular area, giving attention first to the research literature, and then to the tested experiences and practices of leading professionals.…

  18. Picturing Success: Young Femininities and the (Im)Possibilities of Academic Achievement in Selective, Single-Sex Education

    ERIC Educational Resources Information Center

    Allan, Alexandra

    2010-01-01

    Over the last decade it is young women who have come to be widely understood as the bearers of educational qualifications. It is girls who are now seen to have "the world at their feet" and to be able to attain the glittering prizes of academic success associated with elite universities and top occupations. And it is upper-middle-class girls, in…

  19. Interdisciplinary collaboration: the slogan that must be achieved for models of delivering critical care to be successful.

    PubMed

    Irwin, Richard S; Flaherty, Helen M; French, Cynthia T; Cody, Shawn; Chandler, M Willis; Connolly, Ann; Lilly, Craig M

    2012-12-01

    There is wide acceptance of the concept that interdisciplinary collaboration is an essential building block for successful health-care teams. This belief is grounded in our understanding of how teams function to address complex care needs that change with acute illness or injury. This general agreement has been validated in studies that have reported favorable outcomes associated with successfully implementing interdisciplinary models of health-care delivery in non-critical care settings. The very short time frames over which the care needs of critically ill or injured adults change and the team approach taken by nearly all ICUs strongly suggest that interdisciplinary collaboration is also beneficial in this setting. In this commentary, we define interdisciplinary collaboration and share the story of how we successfully redesigned and transformed our system-wide, interdisciplinary collaborative model for delivering critical care in order to share the lessons we learned as the process evolved with those who are about to embark on a similar challenge. We anticipate that those health-care systems that successfully implement interdisciplinary collaboration will be ahead of the curve in providing high-quality care at as low a cost as possible. Such institutions will also potentially be better positioned for improving teaching and providing a better foundation for critical care research in their institutions. PMID:23208334

  20. Determining Minimum Cognitive Scores for the First-Time Academic Achievement Success on the Education Doctoral Comprehensive Examination

    ERIC Educational Resources Information Center

    Cavil, Jafus Kenyatta

    2009-01-01

    This purpose of the present study was to estimate minimum admission requirements using cognitive measures that will maximize candidate success on the doctoral comprehensive examination. Moreover, the present study established minimum scores on the Graduate Record Examinations (verbal and quantitative components) that will maximize doctoral student…

  1. A Validation Study of the Planning, Attention, Simultaneous, and Successive (PASS) Theory and Its Relationship to Reading Achievement in Adults

    ERIC Educational Resources Information Center

    Walker, Justin Moore

    2010-01-01

    This study set out to determine if the Planning, Attention, Simultaneous, Successive (PASS) cognitive processing model, a model previously investigated with children, would hold its factorial structure with adults. A collection of PASS experimental tasks were analyzed through Maximum Likelihood Factor Analysis. A four-factor solution consistent…

  2. Electrochemical flow injection analysis of hydrazine in an excess of an active pharmaceutical ingredient: achieving pharmaceutical detection limits electrochemically.

    PubMed

    Channon, Robert B; Joseph, Maxim B; Bitziou, Eleni; Bristow, Anthony W T; Ray, Andrew D; Macpherson, Julie V

    2015-10-01

    The quantification of genotoxic impurities (GIs) such as hydrazine (HZ) is of critical importance in the pharmaceutical industry in order to uphold drug safety. HZ is a particularly intractable GI and its detection represents a significant technical challenge. Here, we present, for the first time, the use of electrochemical analysis to achieve the required detection limits by the pharmaceutical industry for the detection of HZ in the presence of a large excess of a common active pharmaceutical ingredient (API), acetaminophen (ACM) which itself is redox active, typical of many APIs. A flow injection analysis approach with electrochemical detection (FIA-EC) is utilized, in conjunction with a coplanar boron doped diamond (BDD) microband electrode, insulated in an insulating diamond platform for durability and integrated into a two piece flow cell. In order to separate the electrochemical signature for HZ such that it is not obscured by that of the ACM (present in excess), the BDD electrode is functionalized with Pt nanoparticles (NPs) to significantly shift the half wave potential for HZ oxidation to less positive potentials. Microstereolithography was used to fabricate flow cells with defined hydrodynamics which minimize dispersion of the analyte and optimize detection sensitivity. Importantly, the Pt NPs were shown to be stable under flow, and a limit of detection of 64.5 nM or 0.274 ppm for HZ with respect to the ACM, present in excess, was achieved. This represents the first electrochemical approach which surpasses the required detection limits set by the pharmaceutical industry for HZ detection in the presence of an API and paves the wave for online analysis and application to other GI and API systems. PMID:26302058

  3. Dressed for Success? The Effect of School Uniforms on Student Achievement and Behavior. NBER Working Paper No. 17337

    ERIC Educational Resources Information Center

    Gentile, Elisabetta; Imberman, Scott A.

    2011-01-01

    Uniform use in public schools is rising, but we know little about how they affect students. Using a unique dataset from a large urban school district in the southwest United States, we assess how uniforms affect behavior, achievement and other outcomes. Each school in the district determines adoption independently, providing variation over schools…

  4. The Effect of Poverty on the Achievement of Urban African American Male Students Successfully Completing High School

    ERIC Educational Resources Information Center

    Welch, Amy L.

    2013-01-01

    The purpose of this study was to determine the impact of poverty on the achievement of African American male high school students attending the same large Midwest urban school district. Cumulative grade point average (GPA) at the tenth grade level were compared to the level of poverty provided through census data of African American male tenth…

  5. Striving for Success: A Qualitative Exploration of Competing Theories of High-Achieving Black College Students' Academic Motivation

    ERIC Educational Resources Information Center

    Griffin, Kimberly

    2006-01-01

    Research on the academic performance of Black students has focused on low-achievers, framing their academic motivation as maladaptive and driven by externally (e.g., competition or compliance) rather than internally (e.g., love of learning) generated forces. This qualitative study challenges this mono-dimensional deficit framework, examining the…

  6. A Positive Psychological Viewpoint for Success at School--10 Characteristic Strengths of the Finnish High-Achieving Students

    ERIC Educational Resources Information Center

    Salmela, Mari; Uusiautti, Satu

    2015-01-01

    People who exploit their strengths flourish; they are not only engaged with their goals, but also to their well-being and the content of life. In this study, interest focused on the high-achieving students in the Finnish general upper secondary education, in other words, on straight-A graduates' characteristic strengths. This was a narrative study…

  7. Challenge and Success: A Qualitative Study of the Career Development of Highly Achieving Women With Physical and Sensory Disabilities

    ERIC Educational Resources Information Center

    Noonan, Brigid M.; Gallor, Susanna M.; Hensler-McGinnis, Nancy F.; Fassinger, Ruth E.; Wang, Shihwe; Goodman, Jennifer

    2004-01-01

    This qualitative study examined the career development experiences of 17 highly achieving women with physical and sensory disabilities. Interviews were conducted and data were analyzed using modified grounded theory strategies (A. L. Strauss & J. Corbin, 1998). The emergent theoretical model was conceptualized as a system of influences organized…

  8. A Successful Application of Latent Trait Theory to Tailored Achievement Testing. Research Report No. 80-1.

    ERIC Educational Resources Information Center

    McKinley, Robert L.; Reckase, Mark D.

    A live tailored achievement testing study was conducted to compare procedures based on the one- and three-parameter logistic models. Previous studies yielded inconclusive results because of the procedures by which item calibrations were linked and because of the item selection procedures. Using improved procedures, 83 college students were tested…

  9. Achieving Business Success by Developing Clients and Community: Lessons from Leading Companies, Emerging Economies and a Nine Year Case Study

    ERIC Educational Resources Information Center

    Bernardez, Mariano

    2005-01-01

    Empirical evidence and recent revisions of conventional business doctrine indicate that companies that actively promote social performance and develop their clients' markets and skills as part of business strategy have a better chance of achieving sustainable profitability and growth than those that do not. This article discusses how landmark…

  10. Early Reading Success and Its Relationship to Reading Achievement and Reading Volume: Replication of "10 Years Later"

    ERIC Educational Resources Information Center

    Sparks, Richard L.; Patton, Jon; Murdoch, Amy

    2014-01-01

    Cunningham and Stanovich reported a longitudinal investigation over 10 years that examined the unique influence of exposure to print in explaining individual differences on various measures of reading achievement and declarative (general) knowledge. The present study replicated their investigation with a larger number of participants and…

  11. Daily Practices Elementary Principals Utilize to Increase Student Reading Achievement: A Case Study of Successful Michigan Elementary Schools

    ERIC Educational Resources Information Center

    Johnson, Susan L.

    2010-01-01

    This case study examined three K-5 schools, one 3-5 school, and two K-2 schools that implemented Michigan's Behavior and Learning Support Initiative (MiBLSi) and showed improvement trends in third grade reading achievement as measured by MEAP results over four years. Each of the six schools completed the three years of MiBLSi training and are…

  12. A Phenomenological Investigation of Student Achievement: Perceptions of Academic Success as Told by Single African American and Hispanic Mothers

    ERIC Educational Resources Information Center

    Stewart, Shawn M.

    2010-01-01

    A number of factors seem to contribute to low student achievement in the organization of education. Some of these factors exist prior to children reaching school age. It seems as though a vast quantity of minority students struggle academically. Research supports the belief that socioeconomic status, ethnicity, and single-parent families have an…

  13. Drivers of Success: One District's Process for Closing Achievement Gaps in a Post-No Child Left Behind Context

    ERIC Educational Resources Information Center

    O'Doherty, Ann; Ovando, Martha N.

    2009-01-01

    In this original qualitative study, we examined the processes employed by a school district that had made progress in closing achievement gaps in a post-No Child Left Behind context. The district served more than 26,000 students in an economically and ethnically diverse community. Secondary analysis of the findings uncovered a primary…

  14. Explaining the Success of High-Achieving 2nd-Generation Latino Students at Elite Colleges and Universities

    ERIC Educational Resources Information Center

    Kula, Stacy M.

    2013-01-01

    Latinos represent the largest minority population in the US, yet are one of the most underserved groups in the educational system. As such, they have been the focus of much attention by educational researchers. However, there is little work enabling researchers to understand how many factors might interactively support achievement. Moreover, the…

  15. The Mayor's Plan for Achieving Success in the DCPS: Is the Implementation Likely to Match the Vision?

    ERIC Educational Resources Information Center

    Council of the Great City Schools, 2007

    2007-01-01

    The Mayor Adrian Fenty's achievement plan for the District of Columbia Public Schools (DCPS) is divided into four major parts. The first section outlines the philosophical foundation undergirding the plan. The second section outlines the plan's goals and strategies. In preparing this commentary, the Council of the Great City Schools assessed how…

  16. Fungal association and utilization of phosphate by plants: success, limitations, and future prospects

    PubMed Central

    Johri, Atul K.; Oelmüller, Ralf; Dua, Meenakshi; Yadav, Vikas; Kumar, Manoj; Tuteja, Narendra; Varma, Ajit; Bonfante, Paola; Persson, Bengt L.; Stroud, Robert M.

    2015-01-01

    Phosphorus (P) is a major macronutrient for plant health and development. The available form of P is generally low in the rhizosphere even in fertile soils. A major proportion of applied phosphate (Pi) fertilizers in the soil become fixed into insoluble, unavailable forms, which restricts crop production throughout the world. Roots possess two distinct modes of P uptake from the soil, direct and indirect uptake. The direct uptake of P is facilitated by the plant’s own Pi transporters while indirect uptake occurs via mycorrhizal symbiosis, where the host plant obtains P primarily from the fungal partner, while the fungus benefits from plant-derived reduced carbon. So far, only one Pi transporter has been characterized from the mycorrhizal fungus Glomus versiforme. As arbuscular mycorrhizal fungi cannot be cultured axenically, their Pi transporter network is difficult to exploite for large scale sustainable agriculture. Alternatively, the root-colonizing endophytic fungus Piriformospora indica can grow axenically and provides strong growth-promoting activity during its symbiosis with a broad spectrum of plants. P. indica contains a high affinity Pi transporter (PiPT) involved in improving Pi nutrition levels in the host plant under P limiting conditions. As P. indica can be manipulated genetically, it opens new vistas to be used in P deficient fields. PMID:26528243

  17. [Public health crises in a developed society. Successes and limitations in Spain. SESPAS report 2010].

    PubMed

    Gérvas, Juan; Meneu, Ricard

    2010-12-01

    The perception, acceptability and management of risks are social construction. Consequently, in managing public health crises, the gap between facts, beliefs and feelings tests the responsiveness of official institutions to health alarms that can be objective, potential, or imaginary. On balance, a strong point of the Spanish experience of health crises is the presence of clinicians and public health officers working in an organization capable of responding adequately, although the quasi-federal Spanish political structure has both advantages and disadvantages. Weaknesses include the low profile given to public health and a management structure that relies too heavily on partitocracy. The management of these crises could be improved by transferring greater scope to health professionals in decisions about crisis identification and management (with transparency) and limiting bureaucratic inertia. For some, health crises involve visibility or business opportunities (not always legitimate). Therefore, the perception of crisis will increasingly rest less in the hands of experts and more in those of groups interested in spreading these crises or in providing solutions. While progress is needed to develop participation in strategies to respond to emerging crises, even more essential is the involvement of all healthcare levels in their preparation and dissemination. PMID:21094562

  18. Achieving Stable Nitritation for Mainstream Deammonification by Combining Free Nitrous Acid-Based Sludge Treatment and Oxygen Limitation

    PubMed Central

    Wang, Dongbo; Wang, Qilin; Laloo, Andrew; Xu, Yifeng; Bond, Philip L.; Yuan, Zhiguo

    2016-01-01

    Stable nitritation is a critical bottleneck for achieving autotrophic nitrogen removal using the energy-saving mainstream deammonification process. Herein we report a new strategy to wash out both the Nitrospira sp. and Nitrobacter sp. from the treatment of domestic-strength wastewater. The strategy combines sludge treatment using free nitrous acid (FNA) with dissolved oxygen (DO) control in the nitritation reactor. Initially, the nitrifying reactor achieved full conversion of NH4+ to NO3−. Then, nitrite accumulation at ~60% was achieved in the reactor when 1/4 of the sludge was treated daily with FNA at 1.82 mg N/L in a side-stream unit for 24 h. Fluorescence in-situ hybridization (FISH) revealed FNA treatment substantially reduced the abundance of nitrite oxidizing bacteria (NOB) (from 23.0 ± 4.3 to 5.3 ± 1.9%), especially that of Nitrospira sp. (from 15.7 ± 3.9 to 0.4 ± 0.1%). Nitrite accumulation increased to ~80% when the DO concentration in the mainstream reactor was reduced from 2.5–3.0 to 0.3–0.8 mg/L. FISH revealed the DO limitation further reduced the abundance of NOB (to 2.1 ± 1.0%), especially that of Nitrobacter sp. (from 4.9 ± 1.2 to 1.8 ± 0.8%). The strategy developed removes a major barrier for deammonification in low-strength domestic wastewater. PMID:27151247

  19. Achieving Stable Nitritation for Mainstream Deammonification by Combining Free Nitrous Acid-Based Sludge Treatment and Oxygen Limitation

    NASA Astrophysics Data System (ADS)

    Wang, Dongbo; Wang, Qilin; Laloo, Andrew; Xu, Yifeng; Bond, Philip L.; Yuan, Zhiguo

    2016-05-01

    Stable nitritation is a critical bottleneck for achieving autotrophic nitrogen removal using the energy-saving mainstream deammonification process. Herein we report a new strategy to wash out both the Nitrospira sp. and Nitrobacter sp. from the treatment of domestic-strength wastewater. The strategy combines sludge treatment using free nitrous acid (FNA) with dissolved oxygen (DO) control in the nitritation reactor. Initially, the nitrifying reactor achieved full conversion of NH4+ to NO3‑. Then, nitrite accumulation at ~60% was achieved in the reactor when 1/4 of the sludge was treated daily with FNA at 1.82 mg N/L in a side-stream unit for 24 h. Fluorescence in-situ hybridization (FISH) revealed FNA treatment substantially reduced the abundance of nitrite oxidizing bacteria (NOB) (from 23.0 ± 4.3 to 5.3 ± 1.9%), especially that of Nitrospira sp. (from 15.7 ± 3.9 to 0.4 ± 0.1%). Nitrite accumulation increased to ~80% when the DO concentration in the mainstream reactor was reduced from 2.5–3.0 to 0.3–0.8 mg/L. FISH revealed the DO limitation further reduced the abundance of NOB (to 2.1 ± 1.0%), especially that of Nitrobacter sp. (from 4.9 ± 1.2 to 1.8 ± 0.8%). The strategy developed removes a major barrier for deammonification in low-strength domestic wastewater.

  20. Achieving Stable Nitritation for Mainstream Deammonification by Combining Free Nitrous Acid-Based Sludge Treatment and Oxygen Limitation.

    PubMed

    Wang, Dongbo; Wang, Qilin; Laloo, Andrew; Xu, Yifeng; Bond, Philip L; Yuan, Zhiguo

    2016-01-01

    Stable nitritation is a critical bottleneck for achieving autotrophic nitrogen removal using the energy-saving mainstream deammonification process. Herein we report a new strategy to wash out both the Nitrospira sp. and Nitrobacter sp. from the treatment of domestic-strength wastewater. The strategy combines sludge treatment using free nitrous acid (FNA) with dissolved oxygen (DO) control in the nitritation reactor. Initially, the nitrifying reactor achieved full conversion of NH4(+) to NO3(-). Then, nitrite accumulation at ~60% was achieved in the reactor when 1/4 of the sludge was treated daily with FNA at 1.82 mg N/L in a side-stream unit for 24 h. Fluorescence in-situ hybridization (FISH) revealed FNA treatment substantially reduced the abundance of nitrite oxidizing bacteria (NOB) (from 23.0 ± 4.3 to 5.3 ± 1.9%), especially that of Nitrospira sp. (from 15.7 ± 3.9 to 0.4 ± 0.1%). Nitrite accumulation increased to ~80% when the DO concentration in the mainstream reactor was reduced from 2.5-3.0 to 0.3-0.8 mg/L. FISH revealed the DO limitation further reduced the abundance of NOB (to 2.1 ± 1.0%), especially that of Nitrobacter sp. (from 4.9 ± 1.2 to 1.8 ± 0.8%). The strategy developed removes a major barrier for deammonification in low-strength domestic wastewater. PMID:27151247

  1. Alluvial Fan Records of Climatically Driven Changes in Hillslope Eerosion Rates: Successes, Limitations, and Future Directions

    NASA Astrophysics Data System (ADS)

    Cyr, A. J.; Miller, D. M.; Reheis, M. C.

    2012-12-01

    overlain by a laterally continuous deposit possessing a Bt horizon, a capping Av, and moderately developed pavement that, based on microlamination stratigraphy, is at least 56 ky old. These observations, combined with preliminary 10Be interpretations, indicate that the top of the older alluvial sequence, which contains the stage IV calcic horizon, is at least 375 ka. Using this limiting age, two end-member models for the depositional history of the alluvial sequence, and our observations of soil development elsewhere in the region, we can use several different methods to arrive at the paleoerosion rates at the time of deposition of the oldest stratigraphic interval. These rates are between ~25 and ~135 m/My or between ~30 and ~850 m/My, depending on the preferred age model and interpretive method. Although the lack of tighter age control does not allow us to establish whether faster paleoerosion rates are the result of periods of dominantly more or less intense precipitation, our results do demonstrate that erosion rates may have varied by up to an order of magnitude through time. Perhaps more importantly, even though the results are broadly similar in this case, it appears that it is possible for one to arrive at completely different answers to the same question depending on how the cosmogenic nuclide data are interpreted.

  2. Limited mate availability decreases reproductive success of fragmented populations of Linnaea borealis, a rare, clonal self-incompatible plant

    PubMed Central

    Scobie, A. R.; Wilcock, C. C.

    2009-01-01

    Background and Aims Small populations of rare plant species are increasingly reported to have high levels of reproductive failure. The objective of this study was to understand the principal constraints on sexual reproduction in small fragmented populations of a rare clonal self-incompatible plant. Methods The pollinator spectrum, diversity of flower colour, natural pollination and fruit-set levels of L. borealis were examined in Scotland. Artificially crossed seed production was compared within and between different flower colour types and patches. Key Results Linnaea borealis was pollinated by a diverse spectrum of insect species and the principal pollinators were muscid, syrphid and empid flies which mostly moved only small distances (<0·25 m) between flowers when foraging. Natural pollination levels were high, indicating high pollinator effectiveness, but fruit set was very low in most patches. Flower colour diversity was low in most patches and only those with a diversity of flower colour types had high fruiting success. Pollination experiments showed L. borealis to be highly self-incompatible and artificial crosses within and between patches and flower colour types confirmed that low fruit success was the result of a lack of compatible mates and limited pollen movement between them. Evidence of isolation from pollen exchange was apparent at as little as 6 m and severe at 30 m and beyond. Conclusions Limited mate availability and isolation from pollen exchange compromise the reproductive success of fragmented populations of L. borealis in Scotland. A diversity of compatible mates situated within close proximity (<6 m) is the key requirement to ensure high natural fruiting success. This study emphasizes that an understanding of the breeding system, pollinator spectrum and potential for interconnectivity via pollinator movement are fundamental to identify isolation distances and to establish when conservation intervention is necessary for rare species. PMID

  3. Critical factors for achieving multiple goals with water tariff systems: Combining limited data sources and expert testimony

    NASA Astrophysics Data System (ADS)

    Dalhuisen, Jasper; Nijkamp, Peter

    2002-07-01

    Price instruments are well-known policy handles to influence effectively residential water demand. Prices used to be set by water authorities in such a way that the principle of cost coverage was respected; they acted as prominent instruments in residential water policies in the past decades. More recently, however, price instruments are increasingly used to meet simultaneously financial, environmental, and social goals. This paper addresses four conditions for an appropriate tariff system for residential water use which are often found in the recent literature on the economics of water use. The paper analyzes the importance of background factors (e.g., low water availability) of these four principles as well as the extent to which actual tariff systems are employed in five mutually contrasting cities (Amsterdam, Athens, London, Seville, and Tel Aviv). Meta-analytic techniques, in particular, rough set analysis stemming from artificial intelligence, are applied to identify the common underlying relations between background factors and success of achieving multiple goals in these five urban case studies. The paper concludes with policy recommendations.

  4. Energy extraction and achievement of the saturation limit in a discharge pumped table-top soft x-ray amplifier.

    NASA Astrophysics Data System (ADS)

    Rocca, J. J.; Clark, D. P.; Chilla, J. L. A.; Shlyaptsev, V. N.; Marconi, M. C.

    1996-11-01

    There is significant interest in the demonstration of compact soft x-ray amplifiers capable of generating pulses of substantial energy for applications. This motivates the demonstration of gain media generated by compact devices, that can be successfully scaled in length to reach gain saturation. To date, gain saturation had only been achieved in a few soft x-ray laser lines in plasmas generated by some of the world's largest laser facilities.(B. J. MacGowan et al.), Phys. Fluids B 4, 2326 (1992); A. Carillon et al., Phys. Rev. Lett 68, 2917 (1992);B. Rus et al., in AIP Conf. Proc. 332, X-ray lasers 1994, p. 152; S. Wang et al., ibid., p. 293. Previosly we reported large amplification at 46.9 nm in Ne-like argon in a plasma column generated by a fast capillary discharge.(J. J. Rocca et al.), Phys. Rev. Lett. 73, 2192 (1994). Herein we report the generation of laser pulse energies up to 30 μJ at 46.9 nm in such discharge and the first clear evidence of gain saturation of a table-top soft x-ray amplifier. Single pass amplification experiments yielded laser pulse energies up to 6 μJ and double pass amplification using an iridium mirror yielded 30 μJ. The observed saturation of the gain and laser pulse energy are in good agreement with the results of radiation transport calculations. Work supported by the National Science Foundation.

  5. Faculty and student perceptions of the success of a hybrid-PBL dental curriculum in achieving curriculum reform benchmarks.

    PubMed

    Whitney, Eli M; Walton, Joanne N

    2010-12-01

    The dental education literature identifies eleven benchmark reform agenda curriculum qualities. The purpose of this study was to determine the extent to which the University of British Columbia D.M.D. curriculum was perceived by students and faculty as achieving these benchmarks and to note any differences in perceptions within and between the student and faculty groups. A WebEval survey consisting of twenty-one questions was delivered online in November 2007 to faculty members and D.M.D. students. The response rate was similar (~60 percent) for both students and faculty members. Comparisons were made between faculty members and students as well as within each group. For the faculty, we looked at the influence of appointment, focus, and teaching experience. For students, we looked at the influence of the year in the program, gender, and program track. Some differences (p<0.05) were identified within the faculty and student groups; however, there were many more differences between the faculty and the students, especially in areas related to curriculum redesign, collaborations with other health professions, preparation for independent practice, and creating a trust-based clinic environment. Faculty members were more optimistic about curriculum progress than were students. Improved communication of curriculum goals and explicit efforts at creating a safe and supportive learning environment could diminish these differences over time. PMID:21123500

  6. An analysis of predictors of enrollment and successful achievement for girls in high school Advanced Placement physics

    NASA Astrophysics Data System (ADS)

    Depalma, Darlene M.

    A problem within science education in the United States persists. U.S students rank lower in science than most other students from participating countries on international tests of achievement (National Center for Education Statistics, 2003). In addition, U.S. students overall enrollment rate in high school Advanced Placement (AP) physics is still low compared to other academic domains, especially for females. This problem is the background for the purpose of this study. This investigation examined cognitive and motivational variables thought to play a part in the under-representation of females in AP physics. Cognitive variables consisted of mathematics, reading, and science knowledge, as measured by scores on the 10th and 11th grade Florida Comprehensive Assessment Tests (FCAT). The motivational factors of attitude, stereotypical views toward science, self-efficacy, and epistemological beliefs were measured by a questionnaire developed with questions taken from previously proven reliable and valid instruments. A general survey regarding participation in extracurricular activities was also included. The sample included 12th grade students from two high schools located in Seminole County, Florida. Of the 106 participants, 20 girls and 27 boys were enrolled in AP physics, and 39 girls and 20 boys were enrolled in other elective science courses. Differences between males and females enrolled in AP physics were examined, as well as differences between females enrolled in AP physics and females that chose not to participate in AP physics, in order to determine predictors that apply exclusively to female enrollment in high school AP physics and predictors of an anticipated science related college major. Data were first analyzed by Exploratory Factor Analysis, followed by Analysis of Variance (ANOVA), independent t-tests, univariate analysis, and logistic regression analysis. One overall theme that emerged from this research was findings that refute the ideas that

  7. Limiter

    DOEpatents

    Cohen, S.A.; Hosea, J.C.; Timberlake, J.R.

    1984-10-19

    A limiter with a specially contoured front face is provided. The front face of the limiter (the plasma-side face) is flat with a central indentation. In addition, the limiter shape is cylindrically symmetric so that the limiter can be rotated for greater heat distribution. This limiter shape accommodates the various power scrape-off distances lambda p, which depend on the parallel velocity, V/sub parallel/, of the impacting particles.

  8. A rill erosion-vegetation modeling approach for the evaluation of slope reclamation success in water-limited environments

    NASA Astrophysics Data System (ADS)

    Moreno de las Heras, Mariano; Diaz Sierra, Ruben; Nicolau, Jose M.; Zavala, Miguel A.

    2013-04-01

    Slope reclamation from surface mining and road construction usually shows important constraints in water-limited environments. Soil erosion is perceived as a critical process, especially when rill formation occurs, as rills can condition the spatial distribution and availability of soil moisture for plant growth, hence affecting vegetation development. On the other hand, encouraging early vegetation establishment is essential to reduce the risk of degradation in these man-made systems. This work describes a modeling approach focused on stability analysis of water-limited reclaimed slopes, where interactive relationships between rill erosion and vegetation regulate ecosystem stability. Our framework reproduces two main groups of trends along the temporal evolution of reclaimed slopes: successful trends, characterized by widespread vegetation development and the effective control of rill erosion processes; and gullying trends, characterized by the progressive loss of vegetation and a sharp logistic increase in erosion rates. Furthermore, this analytical approach allows the determination of threshold values for both vegetation cover and rill erosion that drive the system's stability, facilitating the identification of critical situations that require specific human intervention (e.g. revegetation or, in very problematic cases, revegetation combined with rill network destruction) to ensure the long-term sustainability of the restored ecosystem. We apply our threshold analysis framework in Mediterranean-dry reclaimed slopes derived form surface coal mining (the Teruel coalfield in central-east Spain), obtaining a good field-based performance. Therefore, we believe that this model is a valuable contribution for the management of water-limited reclaimed systems, as it can play an important role in decision-making during ecosystem restoration and provides a tool for the assessment of restoration success in severely disturbed landscapes.

  9. A Descriptive Analysis of Enrollment and Achievement among Limited English Proficient Students in New Jersey. Summary. Issues & Answers. REL 2012-No. 108

    ERIC Educational Resources Information Center

    O'Conner, Rosemarie; Abedi, Jamal; Tung, Stephanie

    2012-01-01

    This study describes enrollment and achievement trends of limited English proficient (LEP) students in New Jersey public schools between 2002/03 and 2008/09. It documents achievement gaps between LEP and general education students in language arts literacy and math. The study's main findings include: (1) From 2002/03 to 2008/09, LEP student…

  10. Limiter

    DOEpatents

    Cohen, Samuel A.; Hosea, Joel C.; Timberlake, John R.

    1986-01-01

    A limiter with a specially contoured front face accommodates the various power scrape-off distances .lambda..sub.p, which depend on the parallel velocity, V.sub..parallel., of the impacting particles. The front face of the limiter (the plasma-side face) is flat with a central indentation. In addition, the limiter shape is cylindrically symmetric so that the limiter can be rotated for greater heat distribution.

  11. Examining brain structures associated with the motive to achieve success and the motive to avoid failure: A voxel-based morphometry study.

    PubMed

    Ming, Dan; Chen, Qunlin; Yang, Wenjing; Chen, Rui; Wei, Dongtao; Li, Wenfu; Qiu, Jiang; Xu, Zhan; Zhang, Qinglin

    2016-01-01

    The motive to achieve success (MAS) and motive to avoid failure (MAF) are two different but classical kinds of achievement motivation. Though many functional magnetic resonance imaging studies have explored functional activation in motivation-related conditions, research has been silent as to the brain structures associated with individual differences in achievement motivation, especially with respect to MAS and MAF. In this study, the voxel-based morphometry method was used to uncover focal differences in brain structures related to MAS and MAF measured by the Mehrabian Achieving Tendency Scale in 353 healthy young Chinese adults. The results showed that the brain structures associated with individual differences in MAS and MAF were distinct. MAS was negatively correlated with regional gray matter volume (rGMV) in the medial prefrontal cortex (mPFC)/orbitofrontal cortex while MAF was negatively correlated with rGMV in the mPFC/subgenual cingulate gyrus. After controlling for mutual influences of MAS and MAF scores, MAS scores were found to be related to rGMV in the mPFC/orbitofrontal cortex and another cluster containing the parahippocampal gyrus and precuneus. These results may predict that compared with MAF, the generation process of MAS may be more complex and rational, thus in the real world, perhaps MAS is more beneficial to personal growth and guaranteeing the quality of task performance. PMID:25895120

  12. Microbial Community Succession during Lactate Amendment and Electron Acceptor Limitation Reveals a Predominance of Metal-Reducing Pelosinus spp.

    PubMed Central

    Mosher, Jennifer J.; Phelps, Tommy J.; Podar, Mircea; Hurt, Richard A.; Campbell, James H.; Drake, Meghan M.; Moberly, James G.; Schadt, Christopher W.; Brown, Steven D.; Hazen, Terry C.; Arkin, Adam P.; Palumbo, Anthony V.; Faybishenko, Boris A.

    2012-01-01

    The determination of the success of in situ bioremediation strategies is complex. By using controlled laboratory conditions, the influence of individual variables, such as U(VI), Cr(VI), and electron donors and acceptors on community structure, dynamics, and the metal-reducing potential can be studied. Triplicate anaerobic, continuous-flow reactors were inoculated with Cr(VI)-contaminated groundwater from the Hanford, WA, 100-H area, amended with lactate, and incubated for 95 days to obtain stable, enriched communities. The reactors were kept anaerobic with N2 gas (9 ml/min) flushing the headspace and were fed a defined medium amended with 30 mM lactate and 0.05 mM sulfate with a 48-h generation time. The resultant diversity decreased from 63 genera within 12 phyla to 11 bacterial genera (from 3 phyla) and 2 archaeal genera (from 1 phylum). Final communities were dominated by Pelosinus spp. and to a lesser degree, Acetobacterium spp., with low levels of other organisms, including methanogens. Four new strains of Pelosinus were isolated, with 3 strains being capable of Cr(VI) reduction while one also reduced U(VI). Under limited sulfate, it appeared that the sulfate reducers, including Desulfovibrio spp., were outcompeted. These results suggest that during times of electron acceptor limitation in situ, organisms such as Pelosinus spp. may outcompete the more-well-studied organisms while maintaining overall metal reduction rates and extents. Finally, lab-scale simulations can test new strategies on a smaller scale while facilitating community member isolation, so that a deeper understanding of community metabolism can be revealed. PMID:22267668

  13. Applying SE Methods Achieves Project Success to Evaluate Hammer and Fixed Cutter Grinders Using Multiple Varieties and Moistures of Biomass Feedstock for Ethanol Production

    SciTech Connect

    Larry R. Zirker; Christopher T. Wright, PhD; R. Douglas Hamelin

    2008-06-01

    Applying basic systems engineering (SE) tools to the mission analysis phases of a 2.5-million dollar biomass pre-processing project for the U.S. Department of Energy directly assisted the project principal investigator understand the complexity and identify the gaps of a moving-target project and capture the undefined technical/functional requirements and deliverables from the project team and industrial partners. A creative application of various SE tools by non-aerospace systems engineers developed an innovative “big picture” product that combined aspects of mission analysis with a project functional flow block diagram, providing immediate understanding of the depth and breath of the biomass preprocessing effort for all team members, customers, and industrial partners. The “big picture” diagram became the blue print to write the project test plan, and provided direction to bring the project back on track and achieve project success.

  14. Limits on Achievable Dimensional and Photon Efficiencies with Intensity-Modulation and Photon-Counting Due to Non-Ideal Photon-Counter Behavior

    NASA Technical Reports Server (NTRS)

    Moision, Bruce; Erkmen, Baris I.; Farr, William; Dolinar, Samuel J.; Birnbaum, Kevin M.

    2012-01-01

    An ideal intensity-modulated photon-counting channel can achieve unbounded photon information efficiencies (PIEs). However, a number of limitations of a physical system limit the practically achievable PIE. In this paper, we discuss several of these limitations and illustrate their impact on the channel. We show that, for the Poisson channel, noise does not strictly bound PIE, although there is an effective limit, as the dimensional information efficiency goes as e[overline] e PIE beyond a threshold PIE. Since the Holevo limit is bounded in the presence of noise, this illustrates that the Poisson approximation is invalid at large PIE for any number of noise modes. We show that a finite transmitter extinction ratio bounds the achievable PIE to a maximum that is logarithmic in the extinction ratio. We show how detector jitter limits the ability to mitigate noise in the PPM signaling framework. We illustrate a method to model detector blocking when the number of detectors is large, and illustrate mitigation of blocking with spatial spreading and altering. Finally, we illustrate the design of a high photon efficiency system using state-of-the-art photo-detectors and taking all these effects into account.

  15. Carrots and Sticks: A Comprehensive Business Model for the Successful Achievement of Energy Efficiency Resource Standards Environmental Energy Technologies DivisionMarch 2011

    SciTech Connect

    Satchwell, Andrew; Cappers, Peter; Goldman, Charles

    2011-03-22

    Energy efficiency resource standards (EERS) are a prominent strategy to potentially achieve rapid and aggressive energy savings goals in the U.S. As of December 2010, twenty-six U.S. states had some form of an EERS with savings goals applicable to energy efficiency (EE) programs paid for by utility customers. The European Union has initiated a similar type of savings goal, the Energy End-use Efficiency and Energy Services Directive, where it is being implemented in some countries through direct partnership with regulated electric utilities. U.S. utilities face significant financial disincentives under traditional regulation which affects the interest of shareholders and managers in aggressively pursuing cost-effective energy efficiency. Regulators are considering some combination of mandated goals ('sticks') and alternative utility business model components ('carrots' such as performance incentives) to align the utility's business and financial interests with state and federal energy efficiency public policy goals. European countries that have directed their utilities to administer EE programs have generally relied on non-binding mandates and targets; in the U.S., most state regulators have increasingly viewed 'carrots' as a necessary condition for successful achievement of energy efficiency goals and targets. In this paper, we analyze the financial impacts of an EERS on a large electric utility in the State of Arizona using a pro-forma utility financial model, including impacts on utility earnings, customer bills and rates. We demonstrate how a viable business model can be designed to improve the business case while retaining sizable ratepayer benefits. Quantifying these concerns and identifying ways they can be addressed are crucial steps in gaining the support of major stakeholder groups - lessons that can apply to other countries looking to significantly increase savings targets that can be achieved from their own utility-administered EE programs.

  16. The limitations of seedling growth and drought tolerance to novel soil substrates in arid systems: Implications for restoration success

    NASA Astrophysics Data System (ADS)

    Bateman, Amber; Lewandrowski, Wolfgang; Stevens, Jason; Muñoz-Rojas, Miriam

    2016-04-01

    Introduction With the limited knowledge available regarding the impact of drought on seedling growth, an understanding of seedling tolerance to arid conditions is crucial for restoration success (James et al., 2013; Muñoz-Rojas et al., 2014). However, restoration in semi-arid areas faces the challenge of re-establishing plant communities on altered soil substrates (Muñoz-Rojas et al., 2015). These substrates are a result of anthropogenic disturbances such as mining which have altered the plant-soil-water dynamics of the ecosystem (Machado et al., 2013). The aim of this study was to assess the impact of mining on the plant-soil-water dynamics of an arid ecosystem of Western Australia (Pilbara region, North Western Australia) and the implications these altered relationships have on seedling growth and their responses to drought. Methods Drought responses of native plant species were assessed through a series of glasshouse experiments. Firstly, 21 species dominant to the Pilbara region were subjected to drought in a topsoil growth media to assess variation in responses (leaf water potential at the time of stomatal closure) across species and identify traits associated with drought tolerance. Secondly, four species ranging in their drought tolerance identified previously, were grown to two leaf stages (second and fourth leaf stage) in three mining substrates (topsoil, a topsoil and waste mix and waste) to assess seedling drought responses to various potential restoration substrates and how that varied with plant development stage. Results and discussion Four morphological traits were found to be significantly associated with drought indicators (leaf mass ratio, stem area, stem length, stem weight), however, these were weak correlations. Waste substrate and its addition to topsoil reduced plant total biomass but did not alter species responses to drought. However, the soil physical properties of the waste reduced water retention and water availability for plant uptake

  17. Native Language Proficiency, English Literacy, Academic Achievement, and Occupational Attainment in Limited-English-Proficient Students: A Latent Growth Modeling Perspective

    ERIC Educational Resources Information Center

    Guglielmi, R. Sergio

    2008-01-01

    The hypothesis that native language (L1) proficiency promotes English acquisition and overall academic achievement, a key theoretical assumption underlying bilingual education, was tested using latent growth modeling of data from 899 limited-English-proficient (LEP) eighth graders who were followed for 12 years in the National Education…

  18. Differences in Reading and Math Achievement among Students Who Are Hispanic, Limited English Proficient, or White: A Multi-Year Study

    ERIC Educational Resources Information Center

    Rojas-LeBouef, Ana M.

    2010-01-01

    Purpose. The purpose of this study was to examine differences in academic achievement among students who were Hispanic, Limited English Proficient (LEP), or White, using archival data from the Texas Education Agency's (TEA) Academic Excellence Indicator System (AEIS). Data examined were fifth grade reading and math passing rates from the 1993…

  19. Reframing the Conversation about Students with Limited or Interrupted Formal Education: From Achievement Gap to Cultural Dissonance

    ERIC Educational Resources Information Center

    DeCapua, Andrea; Marshall, Helaine W.

    2015-01-01

    U.S. schools face increasing pressure to ensure that all students succeed, yet the dropout rate for English learners is alarmingly high, especially for those with limited or interrupted formal schooling (SLIFE). Serving SLIFE can be challenging because they not only need to master language and content but also need to develop literacy skills and…

  20. Improving Academic Achievement through Building Self-Esteem in At-Risk Limited English Proficient Ninth Grade Haitian Students.

    ERIC Educational Resources Information Center

    Myrick, Gloria H.

    A self-esteem building program was developed and implemented to reduce the failure and potential dropout rate of limited English proficient 9th-grade Haitian students (N=15) who were enrolled in bilingual classes and were selected based on recommendations from their bilingual teachers, referrals for behavior problems, and failure in two or more…

  1. Achieving high treatment success for multidrug-resistant TB in Africa: initiation and scale-up of MDR TB care in Ethiopia—an observational cohort study

    PubMed Central

    Meressa, Daniel; Hurtado, Rocío M; Andrews, Jason R; Diro, Ermias; Abato, Kassim; Daniel, Tewodros; Prasad, Paritosh; Prasad, Rebekah; Fekade, Bekele; Tedla, Yared; Yusuf, Hanan; Tadesse, Melaku; Tefera, Dawit; Ashenafi, Abraham; Desta, Girma; Aderaye, Getachew; Olson, Kristian; Thim, Sok; Goldfeld, Anne E

    2015-01-01

    Background In Africa, fewer than half of patients receiving therapy for multidrug-resistant TB (MDR TB) are successfully treated, with poor outcomes reported for HIV-coinfected patients. Methods A standardised second-line drug (SLD) regimen was used in a non-governmental organisation–Ministry of Health (NGO-MOH) collaborative community and hospital-based programme in Ethiopia that included intensive side effect monitoring, adherence strategies and nutritional supplementation. Clinical outcomes for patients with at least 24 months of follow-up were reviewed and predictors of treatment failure or death were evaluated by Cox proportional hazards models. Results From February 2009 to December 2014, 1044 patients were initiated on SLD. 612 patients with confirmed or presumed MDR TB had ≥24 months of follow-up, 551 (90.0%) were confirmed and 61 (10.0%) were suspected MDR TB cases. 603 (98.5%) had prior TB treatment, 133 (21.7%) were HIV coinfected and median body mass index (BMI) was 16.6. Composite treatment success was 78.6% with 396 (64.7%) cured, 85 (13.9%) who completed treatment, 10 (1.6%) who failed, 85 (13.9%) who died and 36 (5.9%) who were lost to follow-up. HIV coinfection (adjusted HR (AHR): 2.60, p<0.001), BMI (AHR 0.88/kg/m2, p=0.006) and cor pulmonale (AHR 3.61, p=0.003) and confirmed MDR TB (AHR 0.50, p=0.026) were predictive of treatment failure or death. Conclusions We report from Ethiopia the highest MDR TB treatment success outcomes so far achieved in Africa, in a setting with severe resource constraints and patients with advanced disease. Intensive treatment of adverse effects, nutritional supplementation, adherence interventions and NGO-MOH collaboration were key strategies contributing to success. We argue these approaches should be routinely incorporated into programmes. PMID:26506854

  2. Limited knowledge of fraction representations differentiates middle school students with mathematics learning disability (dyscalculia) vs. low mathematics achievement

    PubMed Central

    Mazzocco, Michèle M. M.; Myers, Gwen F.; Lewis, Katherine E.; Hanich, Laurie B.; Murphy, Melissa M.

    2014-01-01

    Fractions pose significant challenges for many children, but for some children those challenges persist into high school. Here we administered a fractions magnitude comparison test to 122 children, from Grades 4 to 8, to test whether their knowledge of fractions typically learned early in the sequence of formal math instruction (e.g., fractions equivalent to “one-half,” and fraction pairs with common denominators) differentiates those with mathematical learning disability (MLD) versus low achievement (LA) or typical achievement (TA) in mathematics, and whether long term learning trajectories of this knowledge also differentiate these groups. We confirmed that although 4th graders with LA (n = 18) or TA (n = 93) are more accurate evaluating one-half vs. non-half fractions (until they reach ceiling performance levels on both types of fractions), children with MLD (n=11) do not show a one-half advantage until Grade 7 and do not reach ceiling performance even by Grade 8. Both the MLD and LA groups have early difficulties with fractions, but by Grade 5 the LA group approaches performance levels of the TA group and deviates from the MLD group. All groups showed a visual model advantage over Arabic number representation of fractions, but this advantage was short lived for the TA group (because ceiling level was achieved across formats), slightly more persistent for the LA group, and persisted through Grade 8 for children with MLD. Thus, difficulties with fractions persist through Grade 8 for many students, but the nature and trajectories of those difficulties varies across children with math difficulties (MLD or LA). PMID:23587941

  3. Limited knowledge of fraction representations differentiates middle school students with mathematics learning disability (dyscalculia) versus low mathematics achievement.

    PubMed

    Mazzocco, Michèle M M; Myers, Gwen F; Lewis, Katherine E; Hanich, Laurie B; Murphy, Melissa M

    2013-06-01

    Fractions pose significant challenges for many children, but for some children those challenges persist into high school. Here we administered a fractions magnitude comparison test to 122 children, from Grades 4 to 8, to test whether their knowledge of fractions typically learned early in the sequence of formal math instruction (e.g., fractions equivalent to one-half, fraction pairs with common denominators) differentiates those with mathematics learning disability (MLD) versus low achievement (LA) or typical achievement (TA) in mathematics and whether long-term learning trajectories of this knowledge also differentiate these groups. We confirmed that although fourth graders with TA (n=93) were more accurate in evaluating "one-half" fractions than in evaluating "non-half" fractions (until they reached ceiling performance levels on both types of fractions), children with MLD (n=11) did not show a one-half advantage until Grade 7 and did not reach ceiling performance even by Grade 8. Both the MLD and LA groups had early difficulties with fractions, but by Grade 5 the LA group approached performance levels of the TA group and deviated from the MLD group. All groups showed a visual model advantage over Arabic number representation of fractions, but this advantage was short-lived for the TA group (because ceiling level was achieved across formats), whereas it was slightly more persistent for the LA group and persisted through Grade 8 for children with MLD. Thus, difficulties with fractions persist through Grade 8 for many students, but the nature and trajectories of those difficulties vary across children with math difficulties (MLD or LA). PMID:23587941

  4. A new design approach to achieve a minimum impulse limit cycle in the presence of significant measurement uncertainties

    NASA Technical Reports Server (NTRS)

    Martin, M. W.; Kubiak, E. T.

    1982-01-01

    A new design was developed for the Space Shuttle Transition Phase Digital Autopilot to reduce the impact of large measurement uncertainties in the rate signal during attitude control. The signal source, which was dictated by early computer constraints, is characterized by large quantization, noise, bias, and transport lag which produce a measurement uncertainty larger than the minimum impulse rate change. To ensure convergence to a minimum impulse limit cycle, the design employed bias and transport lag compensation and a switching logic with hysteresis, rate deadzone, and 'walking' switching line. The design background, the rate measurement uncertainties, and the design solution are documented.

  5. Limits imposed by solenoid damage on the maximum velocity achieved by an electromagnetic coilgun: A computational study

    NASA Astrophysics Data System (ADS)

    Madhavan, S.; Sijoy, C. D.; Pahari, S.; Chaturvedi, S.

    2012-06-01

    CAD has set up an electromagnetic acceleration and impact facility for studies of material fracture and deformation at high strain rates. The target is to reach projectile velocities of 200-500 m/s. The mechanical strength of the solenoid coil and potting material is an important factor affecting coil survival during experiments. We have performed a computational study, using the materials and coil and circuit parameters typically used in experiments, and found the operating limits up to which the coil can survive without breaking.

  6. Nuclear Symbiosis - A Means to Achieve Sustainable Nuclear Growth while Limiting the Spread of Sensititive Nuclear Technology

    SciTech Connect

    David Shropshire

    2009-09-01

    Global growth of nuclear energy in the 21st century is creating new challenges to limit the spread of nuclear technology without hindering adoption in countries now considering nuclear power. Independent nuclear states desire autonomy over energy choices and seek energy independence. However, this independence comes with high costs for development of new indigenous fuel cycle capabilities. Nuclear supplier states and expert groups have proposed fuel supply assurance mechanisms such as fuel take-back services, international enrichment services and fuel banks in exchange for recipient state concessions on the development of sensitive technologies. Nuclear states are slow to accept any concessions to their rights under the Non-Proliferation Treaty. To date, decisions not to develop indigenous fuel cycle capabilities have been driven primarily by economics. However, additional incentives may be required to offset a nuclear state’s perceived loss of energy independence. This paper proposes alternative economic development incentives that could help countries decide to forgo development of sensitive nuclear technologies. The incentives are created through a nuclear-centered industrial complex with “symbiotic” links to indigenous economic opportunities. This paper also describes a practical tool called the “Nuclear Materials Exchange” for identifying these opportunities.

  7. Addressing the Achilles' Heel in the HIV Care Continuum for the Success of a Test-and-Treat Strategy to Achieve an AIDS-Free Generation

    PubMed Central

    Nachega, Jean B.; Uthman, Olalekan A.; del Rio, Carlos; Mugavero, Michael J.; Rees, Helen; Mills, Edward J.

    2014-01-01

    Mathematical models and recent data from ecological, observational, and experimental studies show that antiretroviral therapy (ART) is effective for both treatment and prevention of HIV, validating the treatment as prevention (TasP) approach. Data from a variety of settings, including resource-rich and -limited sites, show that patient attrition occurs at each stage of the human immunodeficiency virus (HIV) treatment cascade, starting with the percent unaware of their HIV infection in a population and linkage to care after diagnosis, assessment of ART readiness, receipt of ART, and finally long-term virologic suppression. Therefore, in order to implement TasP, we must first define practical and effective linkage to care, acceptability of treatment, and adherence and retention monitoring strategies, as well as the cost-effectiveness of such strategies. Ending this pandemic will require the combination of political will, resources, and novel effective interventions that are not only feasible and cost effective but also likely to be used in combination across successive steps on the HIV treatment cascade. PMID:24926028

  8. Lessons in Success: A Multi-Campus Study of Factors Influencing Academic Accomplishment among High-Achieving African American Students at Private Liberal Arts Colleges

    ERIC Educational Resources Information Center

    Johnson, Ryan A.

    2013-01-01

    The purpose of this study was to explore the academic experiences of highly successful African-American male graduates of small, private liberal arts colleges using a qualitative approach. Fourteen highly successful alumni from selective, private colleges were purposefully selected for the study, including seven African-American males and seven…

  9. The Role of Stanford Achievement Test 10[TM] Subtests in Sixth Grade as a Predictor of Success on ACT's Eighth Grade Explore Exam[TM

    ERIC Educational Resources Information Center

    Potts, Jeffrey D.

    2011-01-01

    The purpose of this study was to determine if there was a predictive correlation between a specific sixth grade achievement test known as the Stanford Achievement Test 10 and the eighth grade college readiness assessment instrument known as the Explore Exam for a group of North Texas students. Following an assessment during sixth grade, via the…

  10. TH-C-BRD-09: Successes and Limitations of Online Range Adaptive Spot Scanning Proton Therapy for NSCLC

    SciTech Connect

    Cheung, JP; Dong, L; Park, P; Zhu, XR; Kudchadker, RJ; Frank, SJ; Court, LE

    2014-06-15

    Purpose: To determine the ability to adapt discrete spot-scanning proton therapy (SSPT) plans based on geometric changes of anatomy to minimize normal tissue dose and maintain target coverage. Methods: We developed and tested a range-correction algorithm to compensate for anatomy changes in SSPT with correction factors for target lateral size changes and energy scaling. This algorithm adjusts the energy of each spot from the original optimized treatment plan to match the new daily anatomy based on water equivalent path-length. To correct for the lateral target size changes, the peripheral spots were scaled based on phantom studies with variable target size. For energy change corrections, alternative cumulative scaling factor lookup tables were generated based on calculated central-axis and integral depth dose calculations for different energies. These various adaptive algorithms were performed on 7 lung cancer patients that were previously treated with proton therapy and who required at least one adaptive intervention. Single-field optimized SSPT plans were generated for these patients with clinical beam angles. Dose-volume histogram metrics were obtained for these patients for both the non-adaptive and the different adaptive plans applied to the last available weekly CT scan. Results: The doses to normal tissue were largely reduced for the spinal cord (Dmax), total lung (V20Gy), and contralateral lung (V20Gy) for all different methods of adaptive planning. With both corrections applied, the average changes for these metrics were −6.2Gy, −2.7%, and −4.9%, respectively. The same method generated unacceptably high target hot spots with average target V110% increase of 12.3%. Conclusion: Adaptive methods based on direct adjustments to proton range can reduce normal tissue doses under large anatomical changes but are insufficient in achieving clinically acceptable target doses and generate unacceptably sizeable hot spots. Adaptive planning methods for proton

  11. An Examination of Successful Leadership Behaviors Exhibited by Middle School Principals in Stimulating and Sustaining African-American Students' Achievement on the California Standards Test in Mathematics

    ERIC Educational Resources Information Center

    Williams, Jacqueline

    2013-01-01

    The purpose of this research study was to examine leadership behaviors of middle school principals who have been successful in stimulating and sustaining African-American students' mathematics achievement on the California Standards Test. Specifically, this research sought to answer the following questions: 1) How do middle school principal…

  12. Addressing Achievement Gaps: Black Male Teens--Moving to Success in the High School Years. Policy Notes. Volume 21, Number 3, Winter 2013

    ERIC Educational Resources Information Center

    Yaffe, Deborah

    2013-01-01

    This issue of ETS Policy Notes (Vol. 21, No. 3) provides highlights from the symposium, "Black Male Teens: Moving to Success in the High School Years" held on June 24, 2013, in Washington, DC. The third in a series of four symposia cosponsored by ETS and the Children's Defense Fund (CDF), the seminar examined the education and status of…

  13. Achieving Successful Employment Outcomes with the Use of Assistive Technology. Report from the Study Group, Institute on Rehabilitation Issues (24th, Washington, DC, May 1998).

    ERIC Educational Resources Information Center

    Radtke, Jean, Ed.

    Developed as a result of an institute on rehabilitation issues, this document is a guide to assistive technology as it affects successful competitive employment outcomes for people with disabilities. Chapter 1 offers basic information on assistive technology including basic assumptions, service provider approaches, options for technology…

  14. Design and experiment of 4H-SiC JBS diodes achieving a near-theoretical breakdown voltage with non-uniform floating limiting rings terminal

    NASA Astrophysics Data System (ADS)

    Yuan, Hao; Song, Qingwen; Tang, Xiaoyan; Zhang, Yimeng; Zhang, Yimen; Zhang, Yuming

    2016-09-01

    In this paper, a 4H-SiC Junction Barrier Schottky diode (JBS) with non-uniform floating limiting rings (FLRs) has been investigated and fabricated using n type 4H-SiC epitaxial layer with thickness of 31 μm and doping concentration of 3.3 × 1015 cm-3. According to the simulated results, the key parameters of a FLRs design to achieve a high voltage are the minimum space between two adjacent doped rings, spacing growth step and number of rings. The experimental results also show a great agreement with simulated results. Meanwhile, a near-ideal breakdown voltage of 3.7 kV was achieved, which yield around 95% of the parallel-plane breakdown voltage. The forward characteristics show that the fabricated JBS diodes have a forward current density of 210 A/cm2 at 3 V and a specific on-resistance (Rsp-on) of 7.58 mΩ cm2. Different FLRs parameters have no effect on the forward device performance.

  15. Making a Way to Success: Self-Authorship and Academic Achievement of First-Year African American Students at Historically Black Colleges

    ERIC Educational Resources Information Center

    Strayhorn, Terrell L.

    2014-01-01

    The purpose of the study was to estimate the relationship between academic achievement in college, as defined by first-year grade point average (GPA), and self-authorship among African American first-year students at an HBCU (N = 140), using hierarchical linear regression techniques. A single research question guided this investigation: What is…

  16. Reading Achievement: Characteristics Associated with Success and Failure: Abstracts of Doctoral Dissertations Published in "Dissertation Abstracts International," July through September 1978 (Vol. 39 Nos. 1 through 3).

    ERIC Educational Resources Information Center

    ERIC Clearinghouse on Reading and Communication Skills, Urbana, IL.

    This collection of abstracts is part of a continuing series providing information on recent doctoral dissertations. The 25 titles deal with a variety of topics, including the following: reading achievement as it relates to child dependency, the development of phonological coding, short-term memory and associative learning, variables available in…

  17. Successful Family Engagement in the Classroom: What Teachers Need to Know and Be Able to Do to Engage Families in Raising Student Achievement

    ERIC Educational Resources Information Center

    Spielberg, Lela

    2011-01-01

    There is widespread agreement that family engagement leads to increased student achievement, reduced drop-out rates, and a host of other positive outcomes for kids. Teachers are rarely trained or supported in engaging families, and, according to the 2005 MetLife Survey of the American Teacher, find family engagement to be their biggest challenge.…

  18. An Examination of the Influence of Inquiry-Based Laboratory Activities and Success on Standards Based Achievement Tests in a Suburban High School

    ERIC Educational Resources Information Center

    Vilardi, Virginia A.

    2013-01-01

    The purpose of this study was to examine whether there is a difference in high school students' achievement and retention on standardized tests between students who participate in inquiry-based laboratory activities and those that participate in traditional style laboratory activities. Additionally, student and teacher opinions of…

  19. Reading Achievement: Characteristics Associated with Success and Failure: Abstracts of Doctoral Dissertations Published in "Dissertation Abstracts International," January through June 1980 (Vol. 40 Nos. 7 through 12).

    ERIC Educational Resources Information Center

    ERIC Clearinghouse on Reading and Communication Skills, Urbana, IL.

    This collection of abstracts is part of a continuing series providing information on recent doctoral dissertations. The 25 titles deal with a variety of topics, including the following: (1) reading comprehension and visual creativity; (2) family interaction and reading achievement in high school males; (3) conceptual tempo, Piagetian level of…

  20. A Qualitative Study: The Impact of Selected Non-Cognitive Variables on the Academic Success and Achievement of Culturally Diverse Academic Scholarship Students

    ERIC Educational Resources Information Center

    Wilson, Linda Louise

    2009-01-01

    The study examined whether select non-cognitive variables such as, (Sedlacek, 1989, 1991, 1993, 2004; Tracey & Sedlacek 1984, 1985, 1987, 1989) impacted the academic achievement, retention and graduation rates of culturally diverse academic scholarship students at a predominantly white higher education institutions. The subjects of the study were…

  1. A National Perspective: Utilizing the Postmodern Theoretical Paradigm to Close the Achievement Gap and Increase Student Success in Public Education America

    ERIC Educational Resources Information Center

    Butcher, Jennifer; Kritsonis, William Allan

    2008-01-01

    The belief that there is one right way or method of inquiry to pursue truth as it is constructed has been rejected by postmodernism. Postmodernism challenges and opens up the central idea that only one set of limits are possible in supporting professional practice. Postmodernism designs a way to look at concepts through the context of meaning. The…

  2. Succession of Ephemeral Secondary Forests and Their Limited Role for the Conservation of Floristic Diversity in a Human-Modified Tropical Landscape

    PubMed Central

    van Breugel, Michiel; Hall, Jefferson S.; Craven, Dylan; Bailon, Mario; Hernandez, Andres; Abbene, Michele; van Breugel, Paulo

    2013-01-01

    Both local- and landscape-scale processes drive succession of secondary forests in human-modified tropical landscapes. Nonetheless, until recently successional changes in composition and diversity have been predominantly studied at the patch level. Here, we used a unique dataset with 45 randomly selected sites across a mixed-use tropical landscape in central Panama to study forest succession simultaneously on local and landscape scales and across both life stages (seedling, sapling, juvenile and adult trees) and life forms (shrubs, trees, lianas, and palms). To understand the potential of these secondary forests to conserve tree species diversity, we also evaluated the diversity of species that can persist as viable metapopulations in a dynamic patchwork of short-lived successional forests, using different assumptions about the average relative size at reproductive maturity. We found a deterministic shift in the diversity and composition of the local plant communities as well as the metacommunity, driven by variation in the rate at which species recruited into and disappeared from the secondary forests across the landscape. Our results indicate that dispersal limitation and the successional niche operate simultaneously and shape successional dynamics of the metacommunity of these early secondary forests. A high diversity of plant species across the metacommunity of early secondary forests shows a potential for restoration of diverse forests through natural succession, when trees and fragments of older forests are maintained in the agricultural matrix and land is abandoned or set aside for a long period of time. On the other hand, during the first 32 years the number of species with mature-sized individuals was a relatively small and strongly biased sub-sample of the total species pool. This implies that ephemeral secondary forests have a limited role in the long-term conservation of tree species diversity in human-modified tropical landscapes. PMID:24349283

  3. Succession of ephemeral secondary forests and their limited role for the conservation of floristic diversity in a human-modified tropical landscape.

    PubMed

    van Breugel, Michiel; Hall, Jefferson S; Craven, Dylan; Bailon, Mario; Hernandez, Andres; Abbene, Michele; van Breugel, Paulo

    2013-01-01

    Both local- and landscape-scale processes drive succession of secondary forests in human-modified tropical landscapes. Nonetheless, until recently successional changes in composition and diversity have been predominantly studied at the patch level. Here, we used a unique dataset with 45 randomly selected sites across a mixed-use tropical landscape in central Panama to study forest succession simultaneously on local and landscape scales and across both life stages (seedling, sapling, juvenile and adult trees) and life forms (shrubs, trees, lianas, and palms). To understand the potential of these secondary forests to conserve tree species diversity, we also evaluated the diversity of species that can persist as viable metapopulations in a dynamic patchwork of short-lived successional forests, using different assumptions about the average relative size at reproductive maturity. We found a deterministic shift in the diversity and composition of the local plant communities as well as the metacommunity, driven by variation in the rate at which species recruited into and disappeared from the secondary forests across the landscape. Our results indicate that dispersal limitation and the successional niche operate simultaneously and shape successional dynamics of the metacommunity of these early secondary forests. A high diversity of plant species across the metacommunity of early secondary forests shows a potential for restoration of diverse forests through natural succession, when trees and fragments of older forests are maintained in the agricultural matrix and land is abandoned or set aside for a long period of time. On the other hand, during the first 32 years the number of species with mature-sized individuals was a relatively small and strongly biased sub-sample of the total species pool. This implies that ephemeral secondary forests have a limited role in the long-term conservation of tree species diversity in human-modified tropical landscapes. PMID:24349283

  4. N-P Co-Limitation of Primary Production and Response of Arthropods to N and P in Early Primary Succession on Mount St. Helens Volcano

    PubMed Central

    Bishop, John G.; O'Hara, Niamh B.; Titus, Jonathan H.; Apple, Jennifer L.; Gill, Richard A.; Wynn, Louise

    2010-01-01

    Background The effect of low nutrient availability on plant-consumer interactions during early succession is poorly understood. The low productivity and complexity of primary successional communities are expected to limit diversity and abundance of arthropods, but few studies have examined arthropod responses to enhanced nutrient supply in this context. We investigated the effects of nitrogen (N) and phosphorus (P) addition on plant productivity and arthropod abundance on 24-yr-old soils at Mount St. Helens volcano. Methodology/Principal Findings We measured the relative abundance of eight arthropod orders and five families in plots that received N, P, or no nutrients for 3–5 years. We also measured plant % cover, leaf %N, and plant diversity. Vegetation responded rapidly to N addition but showed a lagged response to P that, combined with evidence of increased N fixation, suggested P-limitation to N availability. After 3 yrs of fertilization, orthopterans (primarily Anabrus simplex (Tettigoniidae) and Melanoplus spp (Acrididae)) showed a striking attraction to P addition plots, while no other taxa responded to fertilization. After 5 yrs of fertilization, orthopteran density in the same plots increased 80%–130% with P addition and 40% with N. Using structural equation modeling, we show that in year 3 orthopteran abundance was associated with a P-mediated increase in plant cover (or correlated increases in resource quality), whereas in year 5 orthopteran density was not related to cover, diversity or plant %N, but rather to unmeasured effects of P, such as its influence on other aspects of resource quality. Conclusions/Significance The marked surprising response to P by orthopterans, combined with a previous observation of P-limitation in lepidopteran herbivores at these sites, suggests that P-mediated effects of food quantity or quality are critical to insect herbivores in this N-P co-limited primary successional system. Our results also support a previous

  5. PASS and Reading Achievement.

    ERIC Educational Resources Information Center

    Kirby, John R.

    Two studies examined the effectiveness of the PASS (Planning, Attention, Simultaneous, and Successive cognitive processes) theory of intelligence in predicting reading achievement scores of normally achieving children and distinguishing children with reading disabilities from normally achieving children. The first study dealt with predicting…

  6. Dermal Fillers: Tips to Achieve Successful Outcomes

    PubMed Central

    Vedamurthy, Maya; Vedamurthy, Amar

    2008-01-01

    Fillers have become a common aesthetic treatment for several cosmetic problems. Several types of fillers are available from different sources and of different longevities. It is important that the treating physician be aware of the different techniques of administration and their possible side effects. This article reviews the available literature on the subject. PMID:20300346

  7. Strategies for achieving orthopedic service line success.

    PubMed

    Lang, Stacey; Powers, Kristi

    2013-12-01

    Healthcare finance leaders can work with orthopedic surgeons to support better outcomes, clinically and financially, by: Establishing innovative partnerships among hospital leaders, orthopedic surgeons, and implant vendors. Developing and enforcing expectations around contracting and vendor behavior. Establishing a forum for open communication. Building a bundled payment structure. Finding ways to differentiate from the competition. PMID:24380256

  8. Talking about Success: Implications for Achievement Motivation

    ERIC Educational Resources Information Center

    Heyman, Gail D.

    2008-01-01

    Three studies investigated the influence of verbal descriptions concerning the performance of others on children's ability conceptions among 177 elementary school children ranging in age from 8 to 12 years. Study 1 showed that when high-performing characters were described with labels such as "math whiz," children tended to view the character's…

  9. Utilizing Modality Theory to Achieve Academic Success

    ERIC Educational Resources Information Center

    Lister, Dena; Ansalone, George

    2006-01-01

    Education accompanied by social mobility is the cornerstone of the American dream. Yet, each year scores of children, especially those from the underprivileged class, fail to meet even the most modest academic expectations and subsequently never reach their academic potential. This research rejects earlier explanations of academic failure and…

  10. Attitudes of Success.

    ERIC Educational Resources Information Center

    Pendarvis, Faye

    This document investigates the attitudes of successful individuals, citing the achievement of established goals as the criteria for success. After offering various definitions of success, the paper focuses on the importance of self-esteem to success and considers ways by which the self-esteem of students can be improved. Theories of human behavior…

  11. Three basic principles of success.

    PubMed

    Levin, Roger

    2003-06-01

    Basic business principles all but ensure success when they are followed consistently. Putting strategies, objectives and tactics in place is the first step toward being able to document systems, initiate scripting and improve staff training. Without the basic steps, systems, scripting and training the practice for performance would be hit or miss, at best. More importantly, applying business principles ensures that limited practice resources are dedicated to the achievement of the strategy. By following this simple, three-step process, a dental practice can significantly enhance both financial success and dentist and staff satisfaction. PMID:12839415

  12. Incidences and risk factors of first-line HAART discontinuation: a limitation to the success of the "seek, test, treat, and retain" strategy?

    PubMed

    Keita, Momory; Perbost, Isabelle; Pugliese-Wehrlen, Sylvia; Abel, Sylvie; Pugliese, Pascal; Enel, Patricia; Cuzin, Lise; Lang, Thierry; Delpierre, Cyrille

    2014-01-01

    To evaluate the incidence and risk factors of first-highly active antiretroviral therapy (HAART) modifications/interruptions and their causes in a cohort of newly-treated patients by using a competing risk model. In nine centers of the French cohort Dat'AIDS, in 1 year and 2 years of censorship, a competing risk analysis was implemented in HIV1 patients aged 18 years or older first-treated between September 2002 and March 2012. In 4669 patients, 3628 modifications (77.7%) were observed (median: 13.5 months). Cumulative incidence in 1 year: 46.8% [45.4-48.3]; in 2 years: 65.3% [63.8-66.8]. Intolerance (n = 1167; 32.3%): in 1 year, except first-treated from 2002 to 2005, modifications were not different: 2002-2003 (24.6%) 2004-2005 (26.1%), 2006-2007 (19.4%), 2008-2009 (18.8%) and 2010-2011 (15.7%). Women, AIDS patients, and those aged 50 years and older had an excess risk. Therapeutic simplification (n = 1037; 28.6%): in 1 year, except first-treated from 2002 to 2003, modifications were not different: 2002-2003 (9.0%), 2004-2005 (16.0%), 2006-2007 (11.0%), 2008-2009 (15.7%) and 2010-2011 (10.0%). Conversely to injecting-drug-users and AIDS patients, women and first-treated with non-nucleosides had an excess risk. Therapeutic failure (n = 189; 5.2%): contrary to first-treated between 2002 and 2003 or 2008 and 2009, in 1 year as in 2 years, modifications were not different. In 1 year, 1.9% for 2004-2005, 1.6% for 2006-2007 and 1.2% for 2010-2011. Maximum viral load ≥5.0 log10 copies/ml and CD4 <200 cells/mm(3) had a high probability. The study of first-HAART modifications suggests that in 1-year follow-up, intolerance incidence in the recent calendar year is still as frequent as the previous period which may constitute a limitation to the success of the seek, test, treat, and retain. PMID:24517736

  13. Inverting the Achievement Pyramid

    ERIC Educational Resources Information Center

    White-Hood, Marian; Shindel, Melissa

    2006-01-01

    Attempting to invert the pyramid to improve student achievement and increase all students' chances for success is not a new endeavor. For decades, educators have strategized, formed think tanks, and developed school improvement teams to find better ways to improve the achievement of all students. Currently, the No Child Left Behind Act (NCLB) is…

  14. Achievement-Based Resourcing.

    ERIC Educational Resources Information Center

    Fletcher, Mike; And Others

    1992-01-01

    This collection of seven articles examines achievement-based resourcing (ABR), the concept that the funding of educational institutions should be linked to their success in promoting student achievement, with a focus on the application of ABR to postsecondary education in the United Kingdom. The articles include: (1) "Introduction" (Mick…

  15. Testing the limits of Paleozoic chronostratigraphic correlation via high-resolution (13Ccarb) biochemostratigraphy across the Llandovery–Wenlock (Silurian) boundary: Is a unified Phanerozoic time scale achievable?

    USGS Publications Warehouse

    Cramer, Bradley D.; Loydell, David K.; Samtleben, Christian; Munnecke, Axel; Kaljo, Dimitri; Mannik, Peep; Martma, Tonu; Jeppsson, Lennart; Kleffner, Mark A.; Barrick, James E.; Johnson, Craig A.; Emsbo, Poul; Joachimski, Michael M.; Bickert, Torsten; Saltzman, Matthew R.

    2010-01-01

    The resolution and fidelity of global chronostratigraphic correlation are direct functions of the time period under consideration. By virtue of deep-ocean cores and astrochronology, the Cenozoic and Mesozoic time scales carry error bars of a few thousand years (k.y.) to a few hundred k.y. In contrast, most of the Paleozoic time scale carries error bars of plus or minus a few million years (m.y.), and chronostratigraphic control better than ??1 m.y. is considered "high resolution." The general lack of Paleozoic abyssal sediments and paucity of orbitally tuned Paleozoic data series combined with the relative incompleteness of the Paleozoic stratigraphic record have proven historically to be such an obstacle to intercontinental chronostratigraphic correlation that resolving the Paleozoic time scale to the level achieved during the Mesozoic and Cenozoic was viewed as impractical, impossible, or both. Here, we utilize integrated graptolite, conodont, and carbonate carbon isotope (??13Ccarb) data from three paleocontinents (Baltica, Avalonia, and Laurentia) to demonstrate chronostratigraphic control for upper Llando very through middle Wenlock (Telychian-Sheinwoodian, ~436-426 Ma) strata with a resolution of a few hundred k.y. The interval surrounding the base of the Wenlock Series can now be correlated globally with precision approaching 100 k.y., but some intervals (e.g., uppermost Telychian and upper Shein-woodian) are either yet to be studied in sufficient detail or do not show sufficient biologic speciation and/or extinction or carbon isotopic features to delineate such small time slices. Although producing such resolution during the Paleozoic presents an array of challenges unique to the era, we have begun to demonstrate that erecting a Paleozoic time scale comparable to that of younger eras is achievable. ?? 2010 Geological Society of America.

  16. Limited femoral navigation versus conventional intramedullary femoral jig based instrumentation for achieving optimal restoration of mechanical axis post total knee arthroplasty: a prospective comparative study of 200 knees.

    PubMed

    Shah, Nilen A; Patil, Hitendra G; Dhawale, Amol S; Khedkar, Bipin M

    2015-04-01

    A prospective comparative study was conducted to compare the mechanical axis post total knee arthroplasty (TKA) between two groups: In the first group of 100 knees (ASM group) Articular Surface Mounted navigation system was used to guide the distal femoral cut. In the second group of 100 knees (JIG group) conventional intramedullary femoral jig was used. The postoperative mechanical axis of the leg was within 3° of neutral alignment in 90% of the TKA in the ASM group (mean 178.12°) as compared to 74% in the JIG group (mean 177.02°). This difference was statistically significant (P<0.05). The data presented show that the use of limited femoral navigation leads to more accurate restoration of mechanical axis alignment when compared to conventional intramedullary femoral jigs. PMID:25466168

  17. Insights from Successful and Unsuccessful Implementations of School Reform Programs

    ERIC Educational Resources Information Center

    Guhn, Martin

    2009-01-01

    Past educational reforms were commonly found to be of limited success, due to the fact that schools alone cannot overcome the developmental challenges that poverty and ethno-cultural segregation impose upon many children. However, there are reports of some reform programs that have frequently been successful in low-achieving, poverty-ridden, and…

  18. Speciation Analysis of Arsenic by Selective Hydride Generation-Cryotrapping-Atomic Fluorescence Spectrometry with Flame-in-Gas-Shield Atomizer: Achieving Extremely Low Detection Limits with Inexpensive Instrumentation

    PubMed Central

    2015-01-01

    This work describes the method of a selective hydride generation-cryotrapping (HG-CT) coupled to an extremely sensitive but simple in-house assembled and designed atomic fluorescence spectrometry (AFS) instrument for determination of toxicologically important As species. Here, an advanced flame-in-gas-shield atomizer (FIGS) was interfaced to HG-CT and its performance was compared to a standard miniature diffusion flame (MDF) atomizer. A significant improvement both in sensitivity and baseline noise was found that was reflected in improved (4 times) limits of detection (LODs). The yielded LODs with the FIGS atomizer were 0.44, 0.74, 0.15, 0.17 and 0.67 ng L–1 for arsenite, total inorganic, mono-, dimethylated As and trimethylarsine oxide, respectively. Moreover, the sensitivities with FIGS and MDF were equal for all As species, allowing for the possibility of single species standardization with arsenate standard for accurate quantification of all other As species. The accuracy of HG-CT-AFS with FIGS was verified by speciation analysis in two samples of bottled drinking water and certified reference materials, NRC CASS-5 (nearshore seawater) and SLRS-5 (river water) that contain traces of methylated As species. As speciation was in agreement with results previously reported and sums of all quantified species corresponded with the certified total As. The feasibility of HG-CT-AFS with FIGS was also demonstrated by the speciation analysis in microsamples of exfoliated bladder epithelial cells isolated from human urine. The results for the sums of trivalent and pentavalent As species corresponded well with the reference results obtained by HG-CT-ICPMS (inductively coupled plasma mass spectrometry). PMID:25300934

  19. Speciation analysis of arsenic by selective hydride generation-cryotrapping-atomic fluorescence spectrometry with flame-in-gas-shield atomizer: achieving extremely low detection limits with inexpensive instrumentation.

    PubMed

    Musil, Stanislav; Matoušek, Tomáš; Currier, Jenna M; Stýblo, Miroslav; Dědina, Jiří

    2014-10-21

    This work describes the method of a selective hydride generation-cryotrapping (HG-CT) coupled to an extremely sensitive but simple in-house assembled and designed atomic fluorescence spectrometry (AFS) instrument for determination of toxicologically important As species. Here, an advanced flame-in-gas-shield atomizer (FIGS) was interfaced to HG-CT and its performance was compared to a standard miniature diffusion flame (MDF) atomizer. A significant improvement both in sensitivity and baseline noise was found that was reflected in improved (4 times) limits of detection (LODs). The yielded LODs with the FIGS atomizer were 0.44, 0.74, 0.15, 0.17 and 0.67 ng L(-1) for arsenite, total inorganic, mono-, dimethylated As and trimethylarsine oxide, respectively. Moreover, the sensitivities with FIGS and MDF were equal for all As species, allowing for the possibility of single species standardization with arsenate standard for accurate quantification of all other As species. The accuracy of HG-CT-AFS with FIGS was verified by speciation analysis in two samples of bottled drinking water and certified reference materials, NRC CASS-5 (nearshore seawater) and SLRS-5 (river water) that contain traces of methylated As species. As speciation was in agreement with results previously reported and sums of all quantified species corresponded with the certified total As. The feasibility of HG-CT-AFS with FIGS was also demonstrated by the speciation analysis in microsamples of exfoliated bladder epithelial cells isolated from human urine. The results for the sums of trivalent and pentavalent As species corresponded well with the reference results obtained by HG-CT-ICPMS (inductively coupled plasma mass spectrometry). PMID:25300934

  20. Achieving Despite Adversity: Why Are Some Schools Successful in Spite of the Obstacles They Face? A Study of the Characteristics of Effective and Less Effective Elementary Schools in West Virginia Using Qualitative and Quantitative Methods.

    ERIC Educational Resources Information Center

    Hughes, Mary F.

    A study of West Virginia elementary schools examined why similar types of elementary students differ greatly in academic achievement. In the first phase of the study, a comparison of 33 high- and 33 low-achieving elementary schools in West Virginia found that low-achieving schools had 2.5 times more low-income students than high-achieving schools,…

  1. Afterschool Fosters Success in School. MetLife Foundation Afterschool Alert. Issue Brief No. 31

    ERIC Educational Resources Information Center

    Afterschool Alliance, 2008

    2008-01-01

    In the current climate of increased academic assessments, the discussion of student success in school is frequently limited to academic achievement. However, data show that when examining student success, components such as social development and prevention of risky behaviors significantly impact academic achievement. These outcomes form a…

  2. Access to antiretroviral treatment, issues of well-being and public health governance in Chad: what justifies the limited success of the universal access policy?

    PubMed Central

    2013-01-01

    Universal access to antiretroviral treatment (ART) in Chad was officially declared in December 2006. This presidential initiative was and is still funded 100% by the country’s budget and external donors’ financial support. Many factors have triggered the spread of AIDS. Some of these factors include the existence of norms and beliefs that create or increase exposure, the low-level education that precludes access to health information, social unrest, and population migration to areas of high economic opportunities and gender-based discrimination. Social forces that influence the distribution of dimensions of well-being and shape risks for infection also determine the persistence of access barriers to ART. The universal access policy is quite revolutionary but should be informed by the systemic barriers to access so as to promote equity. It is not enough to distribute ARVs and provide health services when health systems are poorly organized and managed. Comprehensive access to ART raises many organizational, ethical and policy problems that need to be solved to achieve equity in access. This paper argues that the persistence of access barriers is due to weak health systems and a poor public health leadership. AIDS has challenged health systems in a manner that is essentially different from other health problems. PMID:23902732

  3. Theme: Local Program Success.

    ERIC Educational Resources Information Center

    Camp, William G.; And Others

    1997-01-01

    Includes "Professional Propagation" (Camp); "Managing Human Resources with Local Program Success (LPS)" (Daley); "Profit Sharing with LPS" (Moses); "Partners for Success" (Mecey- Smith); "Achieving LPS by Collaborating with Partners, Allies and Volunteers" (Oglesby); LPS...Just What Agricultural Education Needs, Another Acronym" (Rist); "The…

  4. Expenditure limits and cost containment.

    PubMed

    Ginsburg, P B

    1993-01-01

    The Clinton administration's proposal for health care reform would tie limits on premiums and, indirectly, provider payment rates to a national health care budget. An expenditure limit (or global budget) is a mechanism to calibrate the parameters of underlying cost containment policies. This article analyzes provider rate setting and managed competition and discusses how they can be guided by expenditure limits. Particular attention is paid to health systems that include elements of both traditional fee-for-service insurance and organized systems of care. Success in containing costs also will require additional policies that can supplement rate setting and managed competition to achieve specific goals to slow spending growth. PMID:8288402

  5. Success in a Hurry

    ERIC Educational Resources Information Center

    Martin, Harold L., Sr.

    2015-01-01

    Although a young program, the North Carolina A&T Honors Program illustrates how quickly and successfully honors can achieve its goals of providing a quality education to its high-achieving students, and how these students can benefit academically and personally from the experiences that honors provides for them. This article provides a brief…

  6. Reproductive failure in Arabidopsis thaliana under transient carbohydrate limitation: flowers and very young siliques are jettisoned and the meristem is maintained to allow successful resumption of reproductive growth.

    PubMed

    Lauxmann, Martin A; Annunziata, Maria G; Brunoud, Géraldine; Wahl, Vanessa; Koczut, Andrzej; Burgos, Asdrubal; Olas, Justyna J; Maximova, Eugenia; Abel, Christin; Schlereth, Armin; Soja, Aleksandra M; Bläsing, Oliver E; Lunn, John E; Vernoux, Teva; Stitt, Mark

    2016-04-01

    The impact of transient carbon depletion on reproductive growth in Arabidopsis was investigated by transferring long-photoperiod-grown plants to continuous darkness and returning them to a light-dark cycle. After 2 days of darkness, carbon reserves were depleted in reproductive sinks, and RNA in situ hybridization of marker transcripts showed that carbon starvation responses had been initiated in the meristem, anthers and ovules. Dark treatments of 2 or more days resulted in a bare-segment phenotype on the floral stem, with 23-27 aborted siliques. These resulted from impaired growth of immature siliques and abortion of mature and immature flowers. Depolarization of PIN1 protein and increased DII-VENUS expression pointed to rapid collapse of auxin gradients in the meristem and inhibition of primordia initiation. After transfer back to a light-dark cycle, flowers appeared and formed viable siliques and seeds. A similar phenotype was seen after transfer to sub-compensation point irradiance or CO2 . It also appeared in a milder form after a moderate decrease in irradiance and developed spontaneously in short photoperiods. We conclude that Arabidopsis inhibits primordia initiation and aborts flowers and very young siliques in C-limited conditions. This curtails demand, safeguarding meristem function and allowing renewal of reproductive growth when carbon becomes available again. PMID:26351840

  7. [Successful Intubation in a Patient with Limited Oral Opening by Using a Combination of the Parker Flex-IT™ Stylet and McGRATH® MAC Laryngoscopy].

    PubMed

    Ueshima, Hironobu; Terao, Kazuhisa; Kitamura, Akira

    2015-10-01

    A 74-year-old female patient underwent a coil embolization for an unruptured cerebral aneurysm. A routine anesthetic protocol was devised as there was no risk of a difficult airway. We attempted to intubate by using direct laryngoscopy but were unable to because the mouth only opened approximately one finger-breadth. We then attempted to intubate using Mc-GRATH® MAC laryngoscopy; the McGRATH® MAC laryngoscope could be inserted orally by force, but a tracheal tube and stylet could not been guided into the glottis. We changed the stylet to a Parker Flex-IT™ Stylet (Parker Medical, CO, USA), which can be freely curved by pushing the sum button on the top of the stylet. As a result, easy intubation was possible, and the DLT was maneuvered at a proper angle while examining the vocal cords by using the Parker Flex-IT™ Stylet In conclusion, when a McGRATH® MAC laryngoscope cannot be operated freely in the oral cavity owing to a limited oral opening, we can instead intubate easily and effectively by using a combination of a Parker Flex-IT™ Stylet and the McGRATH® MAC video laryngoscope. PMID:26742408

  8. Anti-HIV drug development: structural features and limitations of present day drugs and future challenges in the successful HIV/AIDS treatment.

    PubMed

    Kumari, Garima; Singh, Ramendra K

    2013-01-01

    Acquired Immune Deficiency Syndrome (AIDS), an immuno-compromized condition, a sequel to untreated human immunodeficiency virus (HIV) infection, inviting several life-threatening diseases, has become one of the most fatal disorders in the recent past because of HIV strain variance due to mutations, passive latency and reservoirs helping in replenishing and reviving the HIV-1 proviral DNA. Scientific efforts have led to the discovery of several effective drugs against HIV and lowered the morbidity and mortality all over the world. However, despite availability of a good number of anti-HIV drugs, the problem, for the foreseeable reasons, stands out as the most chronic disease due to the less tolerability and low accessibility of drugs, life-long expensive treatment, and above all, the emergence of drug resistant viral strains. This review dwells upon HIV infection and its proliferation inside the host system, drug targets, different types of drugs, their structural features and mode of interaction with viral targets and drug regimens. It further focuses on topics of latest interest regarding drug development, fixed dose combinations (FDCs), the limitations of present day drugs with their structural features along with their pharmacodynamics, pharmacokinetics and pharmacogenomics and the challenges in finding a permanent cure for HIV/AIDS. PMID:23092282

  9. At the limits of a successful body plan – 3D microanatomy, histology and evolution of Helminthope (Mollusca: Heterobranchia: Rhodopemorpha), the most worm-like gastropod

    PubMed Central

    2013-01-01

    Background Gastropods are among the most diverse animal clades, and have successfully colonized special habitats such as the marine sand interstitial. Specialized meiofaunal snails and slugs are tiny and worm-shaped. They combine regressive features – argued to be due to progenetic tendencies – with convergent adaptations. Microscopic size and concerted convergences make morphological examination non-trivial and hamper phylogenetic reconstructions. The enigmatic turbellarian-like Rhodopemorpha are a small group that has puzzled systematists for over a century. A preliminary molecular framework places the group far closer to the root of Heterobranchia – one of the major gastropod groups – than previously suggested. The poorly known meiofaunal Helminthope psammobionta Salvini-Plawen, 1991 from Bermuda is the most worm-shaped free-living gastropod and shows apparently aberrant aspects of anatomy. Its study may give important clues to understand the evolution of rhodopemorphs among basal heterobranchs versus their previously thought origin among ‘higher’ euthyneuran taxa. Results We describe the 3D-microanatomy of H. psammobionta using three-dimensional digital reconstruction based on serial semithin histological sections. The new dataset expands upon the original description and corrects several aspects. Helminthope shows a set of typical adaptations and regressive characters present in other mesopsammic slugs (called ‘meiofaunal syndrome’ herein). The taxonomically important presence of five separate visceral loop ganglia is confirmed, but considerable further detail of the complex nervous system are corrected and revealed. The digestive and reproductive systems are simple and modified to the thread-like morphology of the animal; the anus is far posterior. There is no heart; the kidney resembles a protonephridium. Data on all organ systems are compiled and compared to Rhodope. Conclusions Helminthope is related to Rhodope sharing unique apomorphies

  10. Achievement Tests and Elementary ESOL Exit Criteria: An Evaluation.

    ERIC Educational Resources Information Center

    Abella, Rodolfo

    1992-01-01

    Examines Dade County (Florida) Public Schools' process for exiting limited English-proficient students (LEPSs) from the English-for-Speakers-of-Other-Languages (ESOL) Program. Results with 500 LEPSs show that exiters perform successfully in regular classrooms. The Stanford Achievement Test discriminated between LEPS and non-LEPS performance on…

  11. Limits of social mobilization.

    PubMed

    Rutherford, Alex; Cebrian, Manuel; Dsouza, Sohan; Moro, Esteban; Pentland, Alex; Rahwan, Iyad

    2013-04-16

    The Internet and social media have enabled the mobilization of large crowds to achieve time-critical feats, ranging from mapping crises in real time, to organizing mass rallies, to conducting search-and-rescue operations over large geographies. Despite significant success, selection bias may lead to inflated expectations of the efficacy of social mobilization for these tasks. What are the limits of social mobilization, and how reliable is it in operating at these limits? We build on recent results on the spatiotemporal structure of social and information networks to elucidate the constraints they pose on social mobilization. We use the DARPA Network Challenge as our working scenario, in which social media were used to locate 10 balloons across the United States. We conduct high-resolution simulations for referral-based crowdsourcing and obtain a statistical characterization of the population recruited, geography covered, and time to completion. Our results demonstrate that the outcome is plausible without the presence of mass media but lies at the limit of what time-critical social mobilization can achieve. Success relies critically on highly connected individuals willing to mobilize people in distant locations, overcoming the local trapping of diffusion in highly dense areas. However, even under these highly favorable conditions, the risk of unsuccessful search remains significant. These findings have implications for the design of better incentive schemes for social mobilization. They also call for caution in estimating the reliability of this capability. PMID:23576719

  12. Limits of social mobilization

    PubMed Central

    Rutherford, Alex; Cebrian, Manuel; Dsouza, Sohan; Moro, Esteban; Pentland, Alex; Rahwan, Iyad

    2013-01-01

    The Internet and social media have enabled the mobilization of large crowds to achieve time-critical feats, ranging from mapping crises in real time, to organizing mass rallies, to conducting search-and-rescue operations over large geographies. Despite significant success, selection bias may lead to inflated expectations of the efficacy of social mobilization for these tasks. What are the limits of social mobilization, and how reliable is it in operating at these limits? We build on recent results on the spatiotemporal structure of social and information networks to elucidate the constraints they pose on social mobilization. We use the DARPA Network Challenge as our working scenario, in which social media were used to locate 10 balloons across the United States. We conduct high-resolution simulations for referral-based crowdsourcing and obtain a statistical characterization of the population recruited, geography covered, and time to completion. Our results demonstrate that the outcome is plausible without the presence of mass media but lies at the limit of what time-critical social mobilization can achieve. Success relies critically on highly connected individuals willing to mobilize people in distant locations, overcoming the local trapping of diffusion in highly dense areas. However, even under these highly favorable conditions, the risk of unsuccessful search remains significant. These findings have implications for the design of better incentive schemes for social mobilization. They also call for caution in estimating the reliability of this capability. PMID:23576719

  13. Climatic signals in tree-ring stable isotope records from the U.S. Great Lakes subfossil wood network: Successes and limitations

    NASA Astrophysics Data System (ADS)

    Panyushkina, Irina; Leavitt, Steven

    2015-04-01

    Hydroclimatic proxy studies and general circulation models suggest diverse spatial-temporal patterns of North American environmental variability during the last deglaciation. The U.S. Great Lakes network of subfossil tree rings comprises tree-ring proxy records ranging in length from 100 to 320 years originating along the margin of the Laurentide ice sheet. We explore application of stable isotope measurements from the floating tree-ring chronologies to assess climatic variance and ultimately vegetation response to abrupt environmental changes in the Great Lakes region associated with the Older Dryas, Younger Dryas and Preboreal cooling events. Comparison of tree-ring widths and δ13C and δ18O records from black and white spruce from four sites (Two Creeks-WI, Shelton-MI, Liverpool-IN and Gribben Basin-WI) dating back to ca. 13.7ka,13.5ka, 12ka and 11.2ka BP capture diverse climatic signals although there seems to be some instability in the relationships with the isotopic signatures of tree rings. Intercomparison of tree-ring isotopic signatures of the ancient chronologies and modern analog sites from Manitoba, Canada, suggests positive relationships between summer temperature and dew point with δ13C and tree-ring widths of white spruce. The δ18O signal of the subfossil tree rings is commonly different from δ13C, suggesting greater δ18O correspondence to moisture variance. Nevertheless, the last few decades of 100-to-300-year tree-ring records demonstrate unusual behavior and their stable isotopic ratios vary greatly in response to rapid changes in local hydrology. It is possible that an influx of glacial meltwater or rapidly rising water table are forcing the discordance of coupling temperature -moisture climatic signals in the studied tree-ring records prior to tree dieback or mortality. We discuss the merit and limitations in interpretation of tree-ring proxies from stable isotope measurements during the last deglaciation. The floating chronology tree

  14. Striving for the Best: New Mexico's Need to Strengthen Parent Involvement in Public Schools. NCLB and Recommendations Regarding the Vital Role of Parents and Guardians in Achieving Student and School Success

    ERIC Educational Resources Information Center

    Appleseed, 2008

    2008-01-01

    Parent involvement in New Mexico, and around the nation, is an essential element in the success of students and their schools. This simple point anchors the federal law known as the "No Child Left Behind Act of 2001" ("NCLB"). NCLB establishes state, district and school requirements designed to promote more effective parent involvement. The belief…

  15. Cherokee Culture and School Achievement.

    ERIC Educational Resources Information Center

    Brown, Anthony D.

    1980-01-01

    Compares the effect of cooperative and competitive behaviors of Cherokee and Anglo American elementary school students on academic achievement. Suggests changes in teaching techniques and lesson organization that might raise academic achievement while taking into consideration tribal traditions that limit scholastic achievement in an…

  16. Overcome barriers to career success

    SciTech Connect

    Raudsepp, E.

    1983-04-01

    A test is given to determine if an engineer suffers from one of the three barriers to technical success: fear of success, fear of failure, or perfectionism. As in most such tests, the middle way is best. Successful engineers know that perfection cannot be attained, that they don't have time to worry about failure or success, and that by aiming and perservering in doing things well, success can be achieved.

  17. On the Road to Success: How States Collaborate and Use Data to Improve Student Outcomes. A Working Paper by the Achieving the Dream Cross-State Data Work Group

    ERIC Educational Resources Information Center

    Baldwin, Chris; Borcoman, Gabriela; Chappell-Long, Cheryl; Coperthwaite, Corby A.; Glenn, Darrell; Hutchinson, Tony; Hughes, John; Jenkins, Rick; Jovanovich, Donna; Keller, Jonathan; Klimczak, Benjamin; Schneider, Bill; Stewart, Carmen; Stuart, Debra; Yeager, Michael

    2012-01-01

    Enrollment is rising across the nation's community colleges, but completion rates remain untenably low. Reformers are focusing on the importance of using comprehensive, high-quality data on student progress and completion to bring about change. A core tenet of Achieving the Dream: Community Colleges Count has been to embed a culture of…

  18. Measuring Success: Using Assessments and Accountability To Raise Student Achievement. Hearing before the Subcommittee on Education Reform of the Committee on Education and the Workforce. House of Representatives, One Hundred Seventh Congress, First Session.

    ERIC Educational Resources Information Center

    Congress of the U.S., Washington, DC. House Committee on Education and the Workforce.

    The Subcommittee on Education Reform of the House Committee on Education and the Workforce met to hear testimony on using assessments and accountability to raise student achievement. Statements were given by: (1) Major Owens, Congressman from New York; (2) Michael Castle, Congressman from Delaware, Committee Chairman; (3) Edward B. Rust, Jr.,…

  19. To Achieve or Not to Achieve: The Question of Women.

    ERIC Educational Resources Information Center

    Gilmore, Beatrice

    Questionnaire and projective data from 323 women aged 18 to 50 were analyzed in order to study the relationships of need achievement and motive to avoid success to age, sex role ideology, and stage in the family cycle. Family background and educational variables were also considered. Level of need achievement was found to be significantly related…

  20. Receta para el Exito. Una Guia Actualizada para Padres sobre el Mejoramiento de las Escuelas de Colorado y Logros Estudiantiles (Recipe for Success: An Updated Parents' Guide to Improving Colorado Schools and Student Achievement).

    ERIC Educational Resources Information Center

    Taher, Bonnie; Durr, Pamela

    This Spanish language guide describes ways that parents can help improve student achievement and school quality. It answers such questions as: how to choose the right early-education opportunity for a preschooler; how to make sure a 5-year-old is ready for school; how to help a daughter do well in school; how to work with a daughter's or son's…

  1. Capitol Success.

    PubMed

    Sorrel, Amy Lynn

    2015-08-01

    This legislative session, medicine resolved to ensure physicians can give their patients the best care possible. The hard work paid off in significant victories that largely build on the Texas Medical Association's 2013 legislative successes. PMID:26263520

  2. Focus on Success

    ERIC Educational Resources Information Center

    Frey, Susan

    2011-01-01

    Successful middle schools do not happen by accident--they happen through leadership. Principals promote a shared vision that empowers school staffs to set high standards and continuously improve student achievement. And these middle grade educators also try to help their adolescent students see the connection between their work in school and their…

  3. Many Paths to Success

    ERIC Educational Resources Information Center

    Mero, Dianne

    2009-01-01

    A close look at the principals who make up the MetLife-NASSP Breakthrough Schools (BTS) Class of 2009 reveals a lot about desirable leadership traits. Each of the five middle level schools and the five high schools has achieved remarkable results while serving large numbers of economically challenged students. Behind each school's successes is a…

  4. Characteristics of Successful Entrepreneurs.

    ERIC Educational Resources Information Center

    McClelland, David C.

    1987-01-01

    Comparison of characteristics of 12 average and 12 superior small business people in three developing nations (India, Malawi, and Ecuador) found proactive qualities such as initiative and assertiveness, achievement orientation, and commitment to others characteristic of successful entrepreneurs. Other expected qualities (self-confidence,…

  5. The Power of Interactive Groups: How Diversity of Adults Volunteering in Classroom Groups Can Promote Inclusion and Success for Children of Vulnerable Minority Ethnic Populations

    ERIC Educational Resources Information Center

    Valls, Rosa; Kyriakides, Leonidas

    2013-01-01

    Despite the limited success of grouping students by attainment in enhancing educational achievement for all, this practice is still widely followed in European schools. Aiming at identifying successful educational actions that promote high academic achievement and social inclusion and cohesion, part of the EU-sponsored Europe-wide INCLUD-ED…

  6. Project Success.

    ERIC Educational Resources Information Center

    Meredith, Larry D.

    Project Success consists of after-school, weekend, and summer educational programs geared toward minority and disadvantaged students to increase their numbers seeking postsecondary education from the Meadville, Pennsylvania area. The project is funded primarily through the Edinboro University of Pennsylvania, whose administration is committed to…

  7. The Cognitive Determinants of Achieving Behavior.

    ERIC Educational Resources Information Center

    Kukla, Andy

    A cognitive explanation of achievement-related behavior is developed. It is suggested that high and low achievers diverge behaviorally in the achievement situation because they conceptualize the causes of success and failure in different ways. The results of a study are presented which show that subjects high in achievement needs tend to attribute…

  8. Success Sessions.

    ERIC Educational Resources Information Center

    Lazdowski, Walter P.

    Special Services for the Disadvantaged Students (SSDS) is a federally funded three-year college retention program initiated at a Texas community college. The program's objectives include improving reading and math levels, improving achievement of handicapped students, and increasing skills in English as a second language. To accomplish these…

  9. Impact of learning orientation on African American children's attitudes toward high-achieving peers.

    PubMed

    Marryshow, Derrick; Hurley, Eric A; Allen, Brenda A; Tyler, Kenneth M; Boykin, A Wade

    2005-01-01

    This study examined Ogbu's widely accepted thesis that African American students reject high academic achievement because they perceive its limited utility in a world where their upward mobility is constrained by racial discrimination. Boykin's psychosocial integrity model contends that Black students value high achievement but that discrepancies between their formative cultural experiences and those imposed in school lead them to reject the modes of achievement available in classrooms. Ninety Black children completed a measure of attitudes toward students who achieve via mainstream or African American cultural values. Participants rejected the mainstream achievers and embraced the African American cultural achievers. Moreover, they expected their teachers to embrace the mainstream achievers and reject those who achieved through high-verve behavior. Results suggest that Boykin's thesis is a needed refinement to Ogbu's ideas. They indicate that Black children may reject not high achievement but some of the mainstream cultural values and behaviors on which success in mainstream classrooms is made contingent. PMID:16402748

  10. Components of Successful Training Programs.

    ERIC Educational Resources Information Center

    Kaplan, Dorothy J.

    1984-01-01

    Identifies practices that ensure institutional success in industrial training, focusing on areas including institutional commitment, the president's role, institutional flexibility, instructor qualifications, needs assessment, five basic elements in program development, contracts, recognition of student achievement, evaluations, ongoing…

  11. Evaluating Student Success Interventions. Principles and Practices of Student Success

    ERIC Educational Resources Information Center

    Rincones-Gomez, Rigoberto J.

    2009-01-01

    Achieving the Dream colleges engage in a process of institutional improvement to increase student success. A central component of this process is engaging internal and external stakeholders to help develop and implement interventions or changes in programs and services that improve student success. To determine whether these interventions do…

  12. Succession planning.

    PubMed

    Catanzaro, Thomas E

    2006-03-01

    This article provides the reader with an appreciation of the diverse elements that go into a buy-sell, affiliation, or merger situation for veterinary practices. In the changing market place of American veterinary medicine, old paradigms no longer hold comfort. The generational differences are briefly explored herein as well as the new economic realities. A few examples are offered to illustrate just how much variability exists in the current business of veterinary medicine and the subsequent practice transitions needed to enhance value. Functioning models are explored, as well as affiliation and merger options. Practice valuation is discussed in general terms, referencing the cutting-edge factors. The six-point summary provides almost all practices a solid operational base for daily operations and succession planning. PMID:16442447

  13. Bangladesh becomes "success story".

    PubMed

    1999-01-01

    The State Minister for Health and Family of Bangladesh, Dr. Mohammed Amanullah, highlighted some of the successes being achieved by his country in lowering fertility and improving the lives of the people since the 1994 International Conference on Population and Development. Some of these successes include practical measures to eliminate violence against women; introduction of a quota for women in public sector employment; and launching of the Health and Population Sector Program to provide a one-stop, full range of essential reproductive health, family planning and child health services through an integrated delivery mechanism. Moreover, the Minister informed the Forum participants that their success is attributable to many factors which include support from the government, from non-governmental organizations, civil society, mass media, religious and other community leaders, intersectoral collaboration, microcredit and income-generation activities. PMID:12295511

  14. Professional Development: Sorting through the Jumble to Achieve Success

    ERIC Educational Resources Information Center

    Education Week, 2010

    2010-01-01

    Few in the education field discount the eminently logical idea that teachers should be supported in the continuous improvement of their craft. But as a term for describing ongoing training investments in the teaching force, "professional development" has become both ubiquitous and all but meaningless. Though frequently invoked by lawmakers and…

  15. Teachers at Work: Achieving Success in Our Schools.

    ERIC Educational Resources Information Center

    Johnson, Susan Moore

    In school reform studies little attention has been paid to context, i.e., the structures, standards, norms, and practices that enable and encourage teachers to do their best work. In contrast, this study concentrates on the workplace (the school) as it is experienced by teachers: physical setting and resources; organizational structures;…

  16. The challenges in achieving successful P4P programs.

    PubMed

    Blecker, Emily

    2014-03-01

    (1) Study results indicate that neither the quality scorecard nor the quality incentive payment program had a significant positive effect on general clinical quality. (2) Three main factors likely combined to weaken program effects: (1) modest size of the incentive; (2) use of rewards only; (3) targeting incentive payments to the group rather than to individuals. (3) The researchers found that, relative to the scorecard and reporting alone, the addition of the Quality Incentive Payment Structure (QIP) was associated with a reduction in quality, a result contrary to the intent of the payment incentive program. PMID:24654291

  17. Mid-Childhood Immigrant Perspectives on Achieving College Success

    ERIC Educational Resources Information Center

    Litwicki, Mark J.

    2010-01-01

    This study extends what is known about the experience of mid-childhood immigration. Fifteen participants, college students who immigrated to the U.S. from Latin America between the ages of 8 and 16 and who had completed at least a semester of transferable college-level coursework, provided their narratives by way of an open-ended interview…

  18. Cultivating the Habits of Mind for Student Success and Achievement

    ERIC Educational Resources Information Center

    Hazard, Laurie

    2013-01-01

    In the fall, millions of students arrive at colleges and universities to begin their first-year transition. Although some will find this transition to be seamless, the majority will encounter some academic, social, emotional, or intellectual challenges that will need to be resolved by the end of the academic year. Many will be unprepared, and will…

  19. Leadership skills help financial managers achieve career success.

    PubMed

    Kowalski, R B; Campbell, M W

    2000-04-01

    Financial managers who want to distinguish themselves in their organizations need to demonstrate their leadership ability. Because financial managers sometimes overlook the need for leadership skills, cultivating mentors who can teach them specific leadership skills, such as improved communications and entrepreneurship, may be necessary. Healthcare financial managers can sharpen their leadership skills by distinguishing between leadership and management, adopting a new mentoring model, evaluating the usefulness of new management techniques, understanding the connection between technology and leadership, looking for the solution beyond the problem, and being seen and heard within the organization. PMID:10915351

  20. School Achievement and Post-School Success: A Review

    ERIC Educational Resources Information Center

    Levin, Henry M.; And Others

    1971-01-01

    Aspects of the relationship reviewed are: education and earnings; social and economic mobility across generations; education and political participation; and, education and crime. Overwhelming evidence supports direct relationship between post-school opportunity, performance, and educational attainment. (DB)

  1. Factors Impacting Academic Yearly Progress Success in Mathematics Achievement

    ERIC Educational Resources Information Center

    Carter, Lauren

    2010-01-01

    The demands of No Child Left Behind (NCLB) increase each year, requiring all students to be proficient in mathematics by 2014. The county in this project study will not meet requirements of NCLB by 2014 if current trends continue. The guiding research question for this project study investigated the most effective way to meet the needs of all…

  2. Documenting Success and Achievement: Presentation and Working Portfolios for Counselors.

    ERIC Educational Resources Information Center

    James, Susan Hackbarth; Greenwalt, Bill C.

    2001-01-01

    Discusses how counselors face demands throughout their careers for information from various sources including licensure boards, employers, managed care companies, courts of law, graduate schools, and professional associations. Suggests items for collection and organization in a working portfolio and gives examples of how counselors may use these…

  3. The GOALS Program. Gaining Opportunities to Achieve Lifetime Success.

    ERIC Educational Resources Information Center

    Schwich, Andy; Otto, Nonie

    Designed to support the development of well-rounded individuals, this resource guide integrates the World Cup and soccer into social studies, language arts, mathematics, science, and physical education. The objectives of the GOALS program are for students to: (1) recognize the importance of the World Cup and soccer throughout the world; (2)…

  4. Middle Level Activities Programs: Helping Achieve Academic Success.

    ERIC Educational Resources Information Center

    Hovland, Don

    1990-01-01

    The middle school athletic program should be based on the same philosophy governing academics and nonathletic activities. Essential criteria include total participation, no emphasis on winning, administrative and staff encouragement, short athletic sessions providing several choices, no tournaments or community "all-star" teams, appropriately…

  5. Partnering with IT to Help Disadvantaged Students Achieve Academic Success

    ERIC Educational Resources Information Center

    Clarke, Janet H.

    2012-01-01

    This case study will describe how the Stony Brook University Libraries instruction program partnered with another student support service (student computing office) to nurture a relationship with the Educational Opportunities Program (EOP) over several years to provide their students with the library research and computer skills needed to succeed…

  6. Effectiveness of three treatment strategies on occupational limitations and quality of life for patients with non-specific chronic low back pain: Is a multidisciplinary approach the key feature to success: study protocol for a randomized controlled trial

    PubMed Central

    2014-01-01

    approach is the key feature to programs success in reducing social and occupational impairment in cLBP patients, we suggest that it is possible to achieve the same results with less intensive strategies if a multidisciplinary approach is maintained. Trial registration Current Controlled Trials NCT02030171. PMID:24739659

  7. Entrepreneur achievement. Liaoning province.

    PubMed

    Zhao, R

    1994-03-01

    This paper reports the successful entrepreneurial endeavors of members of a 20-person women's group in Liaoning Province, China. Jing Yuhong, a member of the Family Planning Association at Shileizi Village, Dalian City, provided the basis for their achievements by first building an entertainment/study room in her home to encourage married women to learn family planning. Once stocked with books, magazines, pamphlets, and other materials on family planning and agricultural technology, dozens of married women in the neighborhood flocked voluntarily to the room. Yuhong also set out to give these women a way to earn their own income as a means of helping then gain greater equality with their husbands and exert greater control over their personal reproductive and social lives. She gave a section of her farming land to the women's group, loaned approximately US$5200 to group members to help them generate income from small business initiatives, built a livestock shed in her garden for the group to raise marmots, and erected an awning behind her house under which mushrooms could be grown. The investment yielded $12,000 in the first year, allowing each woman to keep more than $520 in dividends. Members then soon began going to fairs in the capital and other places to learn about the outside world, and have successfully ventured out on their own to generate individual incomes. Ten out of twenty women engaged in these income-generating activities asked for and got the one-child certificate. PMID:12287775

  8. Graded Achievement, Tested Achievement, and Validity

    ERIC Educational Resources Information Center

    Brookhart, Susan M.

    2015-01-01

    Twenty-eight studies of grades, over a century, were reviewed using the argument-based approach to validity suggested by Kane as a theoretical framework. The review draws conclusions about the meaning of graded achievement, its relation to tested achievement, and changes in the construct of graded achievement over time. "Graded…

  9. Successful Lecturing

    PubMed Central

    Copeland, H Liesel; Longworth, David L; Hewson, Mariana G; Stoller, James K

    2000-01-01

    OBJECTIVE In a study conducted over 3 large symposia on intensive review of internal medicine, we previously assessed the features that were most important to course participants in evaluating the quality of a lecture. In this study, we attempt to validate these observations by assessing prospectively the extent to which ratings of specific lecture features would predict the overall evaluation of lectures. MEASUREMENTS AND MAIN RESULTS After each lecture, 143 to 355 course participants rated the overall lecture quality of 69 speakers involved in a large symposium on intensive review of internal medicine. In addition, 7 selected participants and the course directors rated specific lecture features and overall quality for each speaker. The relations among the variables were assessed through Pearson correlation coefficients and cluster analysis. Regression analysis was performed to determine which features would predict the overall lecture quality ratings. The features that most highly correlated with ratings of overall lecture quality were the speaker's abilities to identify key points (r = .797) and be engaging (r = .782), the lecture clarity (r = .754), and the slide comprehensibility (r = .691) and format (r = .660). The three lecture features of engaging the audience, lecture clarity, and using a case-based format were identified through regression as the strongest predictors of overall lecture quality ratings (R2= 0.67, P = 0.0001). CONCLUSIONS We have identified core lecture features that positively affect the success of the lecture. We believe our findings are useful for lecturers wanting to improve their effectiveness and for educators who design continuing medical education curricula. PMID:10886470

  10. Exploring the Complex Relations between Achievement Emotions and Self-Regulated Learning Behaviors in Online Learning

    ERIC Educational Resources Information Center

    Artino, Anthony R., Jr.; Jones, Kenneth D., II

    2012-01-01

    Online learning continues to grow, but there is limited empirical research on the personal factors that influence success in online contexts. This investigation addresses this research gap by exploring the relations between several discrete achievement-related emotions (boredom, frustration, and enjoyment) and self-regulated learning behaviors…

  11. Cooperative Learning with Limited-English-Proficient Students.

    ERIC Educational Resources Information Center

    Jacob, Evelyn; Mattson, Beverly

    Theory and research indicate that cooperative learning methods may provide a way to help limited-English-proficient (LEP) students achieve academically and develop the English language skills necessary for successful classroom functioning. The method involves small groups of two to six students in tasks that require cooperation and positive…

  12. Achievements of the Iranian family planning programmes 1956-2006.

    PubMed

    Simbar, M

    2012-03-01

    Family planning programmes initiated in the Islamic Republic of Iran from 1966 met with limited success. Following the 1986 census family planning was considered a priority and was supported by the country's leaders. Appropriate strategies based on the principles of health promotion led to an increase in the contraceptive prevalence rate among married women from 49.0% in 1989 to 73.8% in 2006. This paper reviews the family planning programmes in the Islamic Republic of Iran and their achievements during the last 4 decades and discusses the principles of health promotion and theories of behaviour change which may explain these achievements. Successful strategies included: creation of a supportive environment, reorientation of family planning services, expanding of coverage of family planning services, training skilled personnel, providing free contraceptives as well as vasectomy and tubectomy services, involvement of volunteers and nongovernmental organizations and promotion of male participation. PMID:22574484

  13. Successful Predictions

    NASA Astrophysics Data System (ADS)

    Pierrehumbert, R.

    2012-12-01

    In an observational science, it is not possible to test hypotheses through controlled laboratory experiments. One can test parts of the system in the lab (as is done routinely with infrared spectroscopy of greenhouse gases), but the collective behavior cannot be tested experimentally because a star or planet cannot be brought into the lab; it must, instead, itself be the lab. In the case of anthropogenic global warming, this is all too literally true, and the experiment would be quite exciting if it weren't for the unsettling fact that we and all our descendents for the forseeable future will have to continue making our home in the lab. There are nonetheless many routes though which the validity of a theory of the collective behavior can be determined. A convincing explanation must not be a"just-so" story, but must make additional predictions that can be verified against observations that were not originally used in formulating the theory. The field of Earth and planetary climate has racked up an impressive number of such predictions. I will also admit as "predictions" statements about things that happened in the past, provided that observations or proxies pinning down the past climate state were not available at the time the prediction was made. The basic prediction that burning of fossil fuels would lead to an increase of atmospheric CO2, and that this would in turn alter the Earth's energy balance so as to cause tropospheric warming, is one of the great successes of climate science. It began in the lineage of Fourier, Tyndall and Arrhenius, and was largely complete with the the radiative-convective modeling work of Manabe in the 1960's -- all well before the expected warming had progressed far enough to be observable. Similarly, long before the increase in atmospheric CO2 could be detected, Bolin formulated a carbon cycle model and used it to predict atmospheric CO2 out to the year 2000; the actual values come in at the high end of his predicted range, for

  14. Population success.

    PubMed

    1982-01-01

    . Access to contraceptives is, of course, a major influence on fertility decline. According to UNFPA some of the Latin American countries have the highest contraceptive use among developing countries. The countries of Asia come next and contraceptives are least used in sub-Saharan Africa where birth rates of 45/1000 are still common. The money for population programs, says the report, has come largely from developing countries themselves. A survey of 15 countries showed them to have contributed 67% out of their own budgets--the rest having come from external aid. And in programs aided by UNFPA the local input has been even higher. During 1979-1981 the developing countries themselves budgeted $4.6 for each dollar budgeted by UNFPA. The report also highlights some of the emerging problems for the next 2 decades--and which will be high on the agenda of the 1984 conference. These include "uncontrolled urban growth" in developing countries as well as an important change in overall population age structure as more and more old people survive. Aging populations are of particular concern to the developed countries but, as the report points out, even countries like China--which has achieved a steep drop in fertility and mortality--will face the problems of an aging population by the year 2000. PMID:12279227

  15. Small(pox) success?

    PubMed

    Birn, Anne-Emanuelle

    2011-02-01

    The 30th anniversary of the World Health Organization's (WHO) official certification of smallpox eradication was marked by a slew of events hailing the campaign's dramatic tale of technological and organizational triumph against an ancient scourge. Yet commemorations also serve as moments of critical reflection. This article questions the acclaim showered upon smallpox eradication as the single greatest public health success in history. It examines how and why smallpox eradication and WHO's concurrent social justice-oriented primary health care approach (following from the Declaration of Alma-Ata) became competing paradigms. It synthesizes critiques of eradication's shortcomings and debunks some of the myths surrounding the global eradication campaign as a public health priority and necessity, and as a Cold War victory of cooperation. The article concludes with thoughts on integrating technical and social-political aspects of health within the context of welfare states as the means to achieving widespread and enduring global public health success. PMID:21340334

  16. Iridium: failures & successes

    NASA Astrophysics Data System (ADS)

    Christensen, CarissaBryce; Beard, Suzette

    2001-03-01

    This paper will provide an overview of the Iridium business venture in terms of the challenges faced, the successes achieved, and the causes of the ultimate failure of the venture — bankruptcy and system de-orbit. The paper will address technical, business, and policy issues. The intent of the paper is to provide a balanced and accurate overview of the Iridium experience, to aid future decision-making by policy makers, the business community, and technical experts. Key topics will include the history of the program, the objectives and decision-making of Motorola, the market research and analysis conducted, partnering strategies and their impact, consumer equipment availability, and technical issues — target performance, performance achieved, technical accomplishments, and expected and unexpected technical challenges. The paper will use as sources trade media and business articles on the Iridium program, technical papers and conference presentations, Wall Street analyst's reports, and, where possible, interviews with participants and close observers.

  17. Purpose plus: supporting youth purpose, control, and academic achievement.

    PubMed

    Pizzolato, Jane Elizabeth; Brown, Elizabeth Levine; Kanny, Mary Allison

    2011-01-01

    Research in the past decade suggests that a persistent achievement gap between students from low-income minority backgrounds and higher-income white backgrounds may be rooted in theories of student motivation and youth purpose. Yet limited research exists regarding the role of purpose on positive youth development as it pertains to academic achievement. Using a sample of 209 high school students, this study examines the effectiveness of an intervention designed to promote purpose development and internal control over academic success in high school students from a low-socioeconomic-status community. Findings reveal that a short-term intervention was effective in significantly increasing internal control over academic success and purpose in life for students participating in the intervention group. In addition, analysis of academic achievement for students who experienced positive gains in internal control and purpose demonstrates significant gains in academic achievement as measured by grade point average. Implications are made for further study of internal control and life purpose as a means of academic intervention in the effort to address the achievement gap. PMID:22275280

  18. Phytoplankton Succession in Recurrently Fluctuating Environments

    PubMed Central

    Roelke, Daniel L.; Spatharis, Sofie

    2015-01-01

    Coastal marine systems are affected by seasonal variations in biogeochemical and physical processes, sometimes leading to alternating periods of reproductive growth limitation within an annual cycle. Transitions between these periods can be sudden or gradual. Human activities, such as reservoir construction and interbasin water transfers, influence these processes and can affect the type of transition between resource loading conditions. How such human activities might influence phytoplankton succession is largely unknown. Here, we employ a multispecies, multi-nutrient model to explore how nutrient loading switching mode might affect phytoplankton succession. The model is based on the Monod-relationship, predicting an instantaneous reproductive growth rate from ambient inorganic nutrient concentrations whereas the limiting nutrient at any given time was determined by Liebig’s Law of the Minimum. When these relationships are combined with population loss factors, such as hydraulic displacement of cells associated with inflows, a characterization of a species’ niche can be achieved through application of the R* conceptual model, thus enabling an ecological interpretation of modeling results. We found that the mode of reversal in resource supply concentrations had a profound effect. When resource supply reversals were sudden, as expected in systems influenced by pulsed inflows or wind-driven mixing events, phytoplankton were characterized by alternating succession dynamics, a phenomenon documented in inland water bodies of temperate latitudes. When resource supply reversals were gradual, as expected in systems influenced by seasonally developing wet and dry seasons, or annually occurring periods of upwelling, phytoplankton dynamics were characterized by mirror-image succession patterns. This phenomenon has not been reported previously in plankton systems but has been observed in some terrestrial plant systems. These findings suggest that a transition from

  19. Achieving closure at Fernald

    SciTech Connect

    Bradburne, John; Patton, Tisha C.

    2001-02-25

    When Fluor Fernald took over the management of the Fernald Environmental Management Project in 1992, the estimated closure date of the site was more than 25 years into the future. Fluor Fernald, in conjunction with DOE-Fernald, introduced the Accelerated Cleanup Plan, which was designed to substantially shorten that schedule and save taxpayers more than $3 billion. The management of Fluor Fernald believes there are three fundamental concerns that must be addressed by any contractor hoping to achieve closure of a site within the DOE complex. They are relationship management, resource management and contract management. Relationship management refers to the interaction between the site and local residents, regulators, union leadership, the workforce at large, the media, and any other interested stakeholder groups. Resource management is of course related to the effective administration of the site knowledge base and the skills of the workforce, the attraction and retention of qualified a nd competent technical personnel, and the best recognition and use of appropriate new technologies. Perhaps most importantly, resource management must also include a plan for survival in a flat-funding environment. Lastly, creative and disciplined contract management will be essential to effecting the closure of any DOE site. Fluor Fernald, together with DOE-Fernald, is breaking new ground in the closure arena, and ''business as usual'' has become a thing of the past. How Fluor Fernald has managed its work at the site over the last eight years, and how it will manage the new site closure contract in the future, will be an integral part of achieving successful closure at Fernald.

  20. An Analysis of High School Mathematics Achievement and English Language Arts Achievement as Predictors of Science Achievement

    ERIC Educational Resources Information Center

    Edwards, Anthony C.

    2012-01-01

    Science assessments require students to read and comprehend questions and to solve mathematical problems. The purpose of this study is to determine whether the following variables can be used to predict science achievement: English language arts achievement, mathematics achievement, socioeconomic status (SES), limited English proficiency (LEP)…

  1. Untangling Performance from Success

    NASA Astrophysics Data System (ADS)

    Yucesoy, Burcu; Barabasi, Albert-Laszlo

    Fame, popularity and celebrity status, frequently used tokens of success, are often loosely related to, or even divorced from professional performance. This dichotomy is partly rooted in the difficulty to distinguish performance, an individual measure that captures the actions of a performer, from success, a collective measure that captures a community's reactions to these actions. Yet, finding the relationship between the two measures is essential for all areas that aim to objectively reward excellence, from science to business. Here we quantify the relationship between performance and success by focusing on tennis, an individual sport where the two quantities can be independently measured. We show that a predictive model, relying only on a tennis player's performance in tournaments, can accurately predict an athlete's popularity, both during a player's active years and after retirement. Hence the model establishes a direct link between performance and momentary popularity. The agreement between the performance-driven and observed popularity suggests that in most areas of human achievement exceptional visibility may be rooted in detectable performance measures. This research was supported by Air Force Office of Scientific Research (AFOSR) under agreement FA9550-15-1-0077.

  2. Treatment Success in Cancer

    PubMed Central

    Djulbegovic, Benjamin; Kumar, Ambuj; Soares, Heloisa P.; Hozo, Iztok; Bepler, Gerold; Clarke, Mike; Bennett, Charles L.

    2009-01-01

    Background The evaluation of research output, such as estimation of the proportion of treatment successes, is of ethical, scientific, and public importance but has rarely been evaluated systematically. We assessed how often experimental cancer treatments that undergo testing in randomized clinical trials (RCTs) result in discovery of successful new interventions. Methods We extracted data from all completed (published and unpublished) phase 3 RCTs conducted by the National Cancer Institute cooperative groups since their inception in 1955. Therapeutic successes were determined by (1) assessing the proportion of statistically significant trials favoring new or standard treatments, (2) determining the proportion of the trials in which new treatments were considered superior to standard treatments according to the original researchers, and (3) quantitatively synthesizing data for main clinical outcomes (overall and event-free survival). Results Data from 624 trials (781 randomized comparisons) involving 216 451 patients were analyzed. In all, 30% of trials had statistically significant results, of which new interventions were superior to established treatments in 80% of trials. The original researchers judged that the risk-benefit profile favored new treatments in 41% of comparisons (316 of 766). Hazard ratios for overall and event-free survival, available for 614 comparisons, were 0.95 (99% confidence interval [CI], 0.93-0.98) and 0.90 (99% CI, 0.87- 0.93), respectively, slightly favoring new treatments. Breakthrough interventions were discovered in 15% of trials. Conclusions Approximately 25% to 50% of new cancer treatments that reach the stage of assessment in RCTs will prove successful. The pattern of successes has become more stable over time. The results are consistent with the hypothesis that the ethical principle of equipoise defines limits of discoverability in clinical research and ultimately drives therapeutic advances in clinical medicine. PMID:18362256

  3. Gene transfer as a strategy to achieve permanent cardioprotection II: rAAV-mediated gene therapy with heme oxygenase-1 limits infarct size 1 year later without adverse functional consequences

    PubMed Central

    Li, Qianhong; Guo, Yiru; Ou, Qinghui; Wu, Wen-Jian; Chen, Ning; Zhu, Xiaoping; Tan, Wei; Yuan, Fangping; Dawn, Buddhadeb; Luo, Li; Hunt, Gregory N.

    2013-01-01

    Extensive evidence indicates that heme oxygenase-1 (HO-1) exerts potent cytoprotective effects in response to stress. Previous studies have shown that gene therapy with HO-1 protects against myocardial ischemia/reperfusion injury for up to 8 weeks after gene transfer. However, the long-term effects of HO-1 gene therapy on myocardial ischemic injury and function are unknown. To address this issue, we created a recombinant adeno-associated viral vector carrying the HO-1 gene (rAAV/HO-1) that enables long-lasting transgene expression. Mice received injections in the anterior LV wall of rAAV/LacZ (LacZ group) or rAAV/HO-1 (HO-1 group); 1 year later, they were subjected to a 30-min coronary occlusion (O) and 4 h of reperfusion (R). Cardiac HO-1 gene expression was confirmed at 1 month and 1 year after gene transfer by immunoblotting and immunohistochemistry analyses. In the HO-1 group, infarct size (% of risk region) was dramatically reduced at 1 year after gene transfer (11.2 ± 2.1%, n = 12, vs. 44.7 ± 3.6%, n = 8, in the LacZ group; P < 0.05). The infarct-sparing effects of HO-1 gene therapy at 1 year were as powerful as those observed 24 h after ischemic PC (six 4-min O/4-min R cycles) (15.0 ± 1.7%, n = 10). There were no appreciable changes in LV fractional shortening, LV ejection fraction, or LV end-diastolic or end-systolic diameter at 1 year after HO-1 gene transfer as compared to the age-matched controls or with the LacZ group. Histology showed no inflammation in the myocardium 1 year after rAAV/HO-1-mediated gene transfer. These results demonstrate, for the first time, that rAAV-mediated HO-1 gene transfer confers long-term (1 year), possibly permanent, cardioprotection without adverse functional consequences, providing proof of principle for the concept of achieving prophylactic cardioprotection (i.e., “immunization against infarction”). PMID:21785893

  4. Exploring the Psychological Predictors of Programming Achievement

    ERIC Educational Resources Information Center

    Erdogan, Yavuz; Aydin, Emin; Kabaca, Tolga

    2008-01-01

    The main purpose of this study is to explore the predictors of programming achievement. With this aim in mind, the students' success in the programming courses is specified as the dependent variable and creativity, problem solving, general aptitudes, computer attitudes and mathematics achievement are specified as the independent variables. A…

  5. The Constraints of Poverty on High Achievement

    ERIC Educational Resources Information Center

    Burney, Virginia H.; Beilke, Jayne R.

    2008-01-01

    Research studies on school success often focus on the impact of discrete elements such as race, culture, ethnicity, gender, language, or school location on high achievement. The condition of poverty, however, may be the most important of all student differences in relation to high achievement; although not all schools have racial diversity, nearly…

  6. Sex Differences in Adults' Motivation to Achieve

    ERIC Educational Resources Information Center

    van der Sluis, Sophie; Vinkhuyzen, Anna A. E.; Boomsma, Dorret I.; Posthuma, Danielle

    2010-01-01

    Achievement motivation is considered a prerequisite for success in academic as well as non-academic settings. We studied sex differences in academic and general achievement motivation in an adult sample of 338 men and 497 women (ages 18-70 years). Multi-group covariance and means structure analysis (MG-CMSA) for ordered categorical data was used…

  7. Success Stories: Auburn Elementary School.

    ERIC Educational Resources Information Center

    Good, Gail; Wanamaker, Kris

    2002-01-01

    Describes how the North Central Association (NCA) school improvement process helped Auburn Elementary School (Kansas) achieve improved student performance. Asserts that critical elements for a successful school improvement process include: trust, organization, and strong steering committee and peer review chairs. (KP)

  8. Comparing Science Achievement Constructs: Targeted and Achieved

    ERIC Educational Resources Information Center

    Ferrara, Steve; Duncan, Teresa

    2011-01-01

    This article illustrates how test specifications based solely on academic content standards, without attention to other cognitive skills and item response demands, can fall short of their targeted constructs. First, the authors inductively describe the science achievement construct represented by a statewide sixth-grade science proficiency test.…

  9. Varieties of Achievement Motivation.

    ERIC Educational Resources Information Center

    Kukla, Andre; Scher, Hal

    1986-01-01

    A recent article by Nicholls on achievement motivation is criticized on three points: (1) definitions of achievement motives are ambiguous; (2) behavioral consequences predicted do not follow from explicit theoretical assumptions; and (3) Nicholls's account of the relation between his theory and other achievement theories is factually incorrect.…

  10. Motivation and School Achievement.

    ERIC Educational Resources Information Center

    Maehr, Martin L.; Archer, Jennifer

    Addressing the question, "What can be done to promote school achievement?", this paper summarizes the literature on motivation relating to classroom achievement and school effectiveness. Particular attention is given to how values, ideology, and various cultural patterns impinge on classroom performance and serve to enhance motivation to achieve.…

  11. Mobility and Reading Achievement.

    ERIC Educational Resources Information Center

    Waters, Theresa Z.

    A study examined the effect of geographic mobility on elementary school students' achievement. Although such mobility, which requires students to make multiple moves among schools, can have a negative impact on academic achievement, the hypothesis for the study was that it was not a determining factor in reading achievement test scores. Subjects…

  12. Field experiments of success-breeds-success dynamics.

    PubMed

    van de Rijt, Arnout; Kang, Soong Moon; Restivo, Michael; Patil, Akshay

    2014-05-13

    Seemingly similar individuals often experience drastically different success trajectories, with some repeatedly failing and others consistently succeeding. One explanation is preexisting variability along unobserved fitness dimensions that is revealed gradually through differential achievement. Alternatively, positive feedback operating on arbitrary initial advantages may increasingly set apart winners from losers, producing runaway inequality. To identify social feedback in human reward systems, we conducted randomized experiments by intervening in live social environments across the domains of funding, status, endorsement, and reputation. In each system we consistently found that early success bestowed upon arbitrarily selected recipients produced significant improvements in subsequent rates of success compared with the control group of nonrecipients. However, success exhibited decreasing marginal returns, with larger initial advantages failing to produce much further differentiation. These findings suggest a lesser degree of vulnerability of reward systems to incidental or fabricated advantages and a more modest role for cumulative advantage in the explanation of social inequality than previously thought. PMID:24778230

  13. Field experiments of success-breeds-success dynamics

    PubMed Central

    van de Rijt, Arnout; Kang, Soong Moon; Restivo, Michael; Patil, Akshay

    2014-01-01

    Seemingly similar individuals often experience drastically different success trajectories, with some repeatedly failing and others consistently succeeding. One explanation is preexisting variability along unobserved fitness dimensions that is revealed gradually through differential achievement. Alternatively, positive feedback operating on arbitrary initial advantages may increasingly set apart winners from losers, producing runaway inequality. To identify social feedback in human reward systems, we conducted randomized experiments by intervening in live social environments across the domains of funding, status, endorsement, and reputation. In each system we consistently found that early success bestowed upon arbitrarily selected recipients produced significant improvements in subsequent rates of success compared with the control group of nonrecipients. However, success exhibited decreasing marginal returns, with larger initial advantages failing to produce much further differentiation. These findings suggest a lesser degree of vulnerability of reward systems to incidental or fabricated advantages and a more modest role for cumulative advantage in the explanation of social inequality than previously thought. PMID:24778230

  14. Action Learning in Action: Achieving Change with Limited Resources

    ERIC Educational Resources Information Center

    Grzybowski, Anne

    2008-01-01

    Implementing change is always difficult. It is even more difficult when change is not a priority for anyone else, individuals do not have the authority to tell people to "just do it" and they do not have the resources to "do it themselves". These are some of the challenges the Records Management Section at the University of Edinburgh faces, but it…

  15. Urinary proteomics in cardiovascular disease: Achievements, limits and hopes.

    PubMed

    Delles, Christian; Diez, Javier; Dominiczak, Anna F

    2011-06-01

    Cardiovascular disease (CVD) is the major cause of mortality and morbidity worldwide. Diagnosis of CVD and risk stratification of patients with CVD remains challenging despite the availability of a wealth of non-invasive and invasive tests. Clinical proteomics analyses a large number of peptides and proteins in biofluids. For clinical applications, the urinary proteome appears particularly attractive due to the relative low complexity compared with the plasma proteome and the noninvasive collection of urine. In this article, we review the results from pilot studies into urinary proteomics of coronary artery disease and discuss the potential of urinary proteomics in the context of pathogenesis of CVD. PMID:21523916

  16. The Longitudinal Effects of Achievement Goals and Perceived Control on University Student Achievement

    ERIC Educational Resources Information Center

    Daniels, Lia M.; Perry, Raymond P.; Stupnisky, Robert H.; Stewart, Tara L.; Newall, Nancy E. G.; Clifton, Rodney A.

    2014-01-01

    In the area of achievement motivation, students' beliefs pertaining to achievement goals and perceived control have separately guided a large amount theoretical and empirical research. However, limited research has considered the simultaneous effects of goals and control on achievement. The purpose of this study was to examine primary and…

  17. What Specific Preschool Math Skills Predict Later Math Achievement?

    ERIC Educational Resources Information Center

    Nguyen, Tutrang; Watts, Tyler W.; Duncan, Greg J.; Clements, Douglas H.; Sarama, Julie; Wolfe, Christopher B.; Spitler, Mary Elaine

    2015-01-01

    The widespread concern about mathematics achievement has drawn extensive research attention to what skills predict later academic achievement. There is clear and consistent evidence that math achievement at school entry is the strongest predictor of later school success and educational attainment. Early childhood math achievement can thus have…

  18. Heritability of Creative Achievement

    ERIC Educational Resources Information Center

    Piffer, Davide; Hur, Yoon-Mi

    2014-01-01

    Although creative achievement is a subject of much attention to lay people, the origin of individual differences in creative accomplishments remain poorly understood. This study examined genetic and environmental influences on creative achievement in an adult sample of 338 twins (mean age = 26.3 years; SD = 6.6 years). Twins completed the Creative…

  19. Confronting the Achievement Gap

    ERIC Educational Resources Information Center

    Gardner, David

    2007-01-01

    This article talks about the large achievement gap between children of color and their white peers. The reasons for the achievement gap are varied. First, many urban minorities come from a background of poverty. One of the detrimental effects of growing up in poverty is receiving inadequate nourishment at a time when bodies and brains are rapidly…

  20. States Address Achievement Gaps.

    ERIC Educational Resources Information Center

    Christie, Kathy

    2002-01-01

    Summarizes 2 state initiatives to address the achievement gap: North Carolina's report by the Advisory Commission on Raising Achievement and Closing Gaps, containing an 11-point strategy, and Kentucky's legislation putting in place 10 specific processes. The North Carolina report is available at www.dpi.state.nc.us.closingthegap; Kentucky's…

  1. Wechsler Individual Achievement Test.

    ERIC Educational Resources Information Center

    Taylor, Ronald L.

    1999-01-01

    This article describes the Wechsler Individual Achievement Test, a comprehensive measure of achievement for individuals in grades K-12. Eight subtests assess mathematics reasoning, spelling, reading comprehension, numerical operations, listening comprehension, oral expression, and written expression. Its administration, standardization,…

  2. Achievement Test Program.

    ERIC Educational Resources Information Center

    Ohio State Dept. of Education, Columbus. Trade and Industrial Education Service.

    The Ohio Trade and Industrial Education Achievement Test battery is comprised of seven basic achievement tests: Machine Trades, Automotive Mechanics, Basic Electricity, Basic Electronics, Mechanical Drafting, Printing, and Sheet Metal. The tests were developed by subject matter committees and specialists in testing and research. The Ohio Trade and…

  3. General Achievement Trends: Maryland

    ERIC Educational Resources Information Center

    Center on Education Policy, 2009

    2009-01-01

    This general achievement trends profile includes information that the Center on Education Policy (CEP) and the Human Resources Research Organization (HumRRO) obtained from states from fall 2008 through April 2009. Included herein are: (1) Bullet points summarizing key findings about achievement trends in that state at three performance…

  4. General Achievement Trends: Arkansas

    ERIC Educational Resources Information Center

    Center on Education Policy, 2009

    2009-01-01

    This general achievement trends profile includes information that the Center on Education Policy (CEP) and the Human Resources Research Organization (HumRRO) obtained from states from fall 2008 through April 2009. Included herein are: (1) Bullet points summarizing key findings about achievement trends in that state at three performance…

  5. General Achievement Trends: Idaho

    ERIC Educational Resources Information Center

    Center on Education Policy, 2009

    2009-01-01

    This general achievement trends profile includes information that the Center on Education Policy (CEP) and the Human Resources Research Organization (HumRRO) obtained from states from fall 2008 through April 2009. Included herein are: (1) Bullet points summarizing key findings about achievement trends in that state at three performance…

  6. General Achievement Trends: Nebraska

    ERIC Educational Resources Information Center

    Center on Education Policy, 2009

    2009-01-01

    This general achievement trends profile includes information that the Center on Education Policy (CEP) and the Human Resources Research Organization (HumRRO) obtained from states from fall 2008 through April 2009. Included herein are: (1) Bullet points summarizing key findings about achievement trends in that state at three performance…

  7. General Achievement Trends: Colorado

    ERIC Educational Resources Information Center

    Center on Education Policy, 2009

    2009-01-01

    This general achievement trends profile includes information that the Center on Education Policy (CEP) and the Human Resources Research Organization (HumRRO) obtained from states from fall 2008 through April 2009. Included herein are: (1) Bullet points summarizing key findings about achievement trends in that state at three performance…

  8. General Achievement Trends: Iowa

    ERIC Educational Resources Information Center

    Center on Education Policy, 2009

    2009-01-01

    This general achievement trends profile includes information that the Center on Education Policy (CEP) and the Human Resources Research Organization (HumRRO) obtained from states from fall 2008 through April 2009. Included herein are: (1) Bullet points summarizing key findings about achievement trends in that state at three performance…

  9. General Achievement Trends: Hawaii

    ERIC Educational Resources Information Center

    Center on Education Policy, 2009

    2009-01-01

    This general achievement trends profile includes information that the Center on Education Policy (CEP) and the Human Resources Research Organization (HumRRO) obtained from states from fall 2008 through April 2009. Included herein are: (1) Bullet points summarizing key findings about achievement trends in that state at three performance…

  10. General Achievement Trends: Kentucky

    ERIC Educational Resources Information Center

    Center on Education Policy, 2009

    2009-01-01

    This general achievement trends profile includes information that the Center on Education Policy (CEP) and the Human Resources Research Organization (HumRRO) obtained from states from fall 2008 through April 2009. Included herein are: (1) Bullet points summarizing key findings about achievement trends in that state at three performance…

  11. General Achievement Trends: Florida

    ERIC Educational Resources Information Center

    Center on Education Policy, 2009

    2009-01-01

    This general achievement trends profile includes information that the Center on Education Policy (CEP) and the Human Resources Research Organization (HumRRO) obtained from states from fall 2008 through April 2009. Included herein are: (1) Bullet points summarizing key findings about achievement trends in that state at three performance…

  12. General Achievement Trends: Texas

    ERIC Educational Resources Information Center

    Center on Education Policy, 2009

    2009-01-01

    This general achievement trends profile includes information that the Center on Education Policy (CEP) and the Human Resources Research Organization (HumRRO) obtained from states from fall 2008 through April 2009. Included herein are: (1) Bullet points summarizing key findings about achievement trends in that state at three performance…

  13. General Achievement Trends: Oregon

    ERIC Educational Resources Information Center

    Center on Education Policy, 2009

    2009-01-01

    This general achievement trends profile includes information that the Center on Education Policy (CEP) and the Human Resources Research Organization (HumRRO) obtained from states from fall 2008 through April 2009. Included herein are: (1) Bullet points summarizing key findings about achievement trends in that state at three performance…

  14. General Achievement Trends: Virginia

    ERIC Educational Resources Information Center

    Center on Education Policy, 2009

    2009-01-01

    This general achievement trends profile includes information that the Center on Education Policy (CEP) and the Human Resources Research Organization (HumRRO) obtained from states from fall 2008 through April 2009. Included herein are: (1) Bullet points summarizing key findings about achievement trends in that state at three performance…

  15. Honoring Student Achievement

    ERIC Educational Resources Information Center

    Education Digest: Essential Readings Condensed for Quick Review, 2004

    2004-01-01

    Is the concept of "honor roll" obsolete? The honor roll has always been a way for schools to recognize the academic achievement of their students. But does it motivate students? In this article, several elementary school principals share their views about honoring student achievement. Among others, Virginia principal Nancy Moga said that students…

  16. Aiming at Achievement.

    ERIC Educational Resources Information Center

    Martinez, Paul

    The Raising Quality and Achievement Program is a 3-year initiative to support further education (FE) colleges in the United Kingdom in their drive to improve students' achievement and the quality of provision. The program offers the following: (1) quality information and advice; (2) onsite support for individual colleges; (3) help with…

  17. Achieving Perspective Transformation.

    ERIC Educational Resources Information Center

    Nowak, Jens

    Perspective transformation is a consciously achieved state in which the individual's perspective on life is transformed. The new perspective serves as a vantage point for life's actions and interactions, affecting the way life is lived. Three conditions are basic to achieving perspective transformation: (1) "feeling" experience, i.e., getting in…

  18. Achieving Public Schools

    ERIC Educational Resources Information Center

    Abowitz, Kathleen Knight

    2011-01-01

    Public schools are functionally provided through structural arrangements such as government funding, but public schools are achieved in substance, in part, through local governance. In this essay, Kathleen Knight Abowitz explains the bifocal nature of achieving public schools; that is, that schools are both subject to the unitary Public compact of…

  19. General Achievement Trends: Tennessee

    ERIC Educational Resources Information Center

    Center on Education Policy, 2009

    2009-01-01

    This general achievement trends profile includes information that the Center on Education Policy (CEP) and the Human Resources Research Organization (HumRRO) obtained from states from fall 2008 through April 2009. Included herein are: (1) Bullet points summarizing key findings about achievement trends in that state at three performance…

  20. Succession Planning and Financial Performance: Does Competition Matter?

    PubMed

    Patidar, Nitish; Gupta, Shivani; Azbik, Ginger; Weech-Maldonado, Robert

    2016-01-01

    Succession planning has been defined as the process by which one or more successors are identified for key positions, development activities are planned for identified successors, or both. Limited research exists pertaining to the relationship between hospital succession planning and financial performance, particularly in the context of market competition. We used the resource-based view framework to analyze the differential effect of succession planning on hospitals' financial performance based on market competition. According to RBV, organizations can achieve higher performance by using their superior resources and capabilities. We used a panel design consisting of a national sample of hospitals in the United States for 2006-2010. We analyzed data using multivariate linear regression with facility random effects and year and state fixed effects. The sample included 22,717 hospital-year observations; more than one half of the hospitals (55.4%) had a succession planning program. The study found a positive relationship between the presence of succession planning and financial performance (β = 1.41, p < .01), which was stronger in competitive markets (β = 2.31, p = .03) than in monopolistic markets (β = 1.06, p = .01). Hospitals can use these results to make informed decisions about investing in succession planning programs on the basis of competition in their market. PMID:27356448

  1. Razalas' Grouping Method and Mathematics Achievement

    ERIC Educational Resources Information Center

    Salazar, Douglas A.

    2015-01-01

    This study aimed to raise the achievement level of students in Integral Calculus using Direct Instruction with Razalas' Method of Grouping. The study employed qualitative and quantitative analysis relative to data generated by the Achievement Test and Math journal with follow-up interview. Within the framework of the limitations of the study, the…

  2. [Achievement of therapeutic objectives].

    PubMed

    Mantilla, Teresa

    2014-07-01

    Therapeutic objectives for patients with atherogenic dyslipidemia are achieved by improving patient compliance and adherence. Clinical practice guidelines address the importance of treatment compliance for achieving objectives. The combination of a fixed dose of pravastatin and fenofibrate increases the adherence by simplifying the drug regimen and reducing the number of daily doses. The good tolerance, the cost of the combination and the possibility of adjusting the administration to the patient's lifestyle helps achieve the objectives for these patients with high cardiovascular risk. PMID:25043543

  3. Current limiters

    SciTech Connect

    Loescher, D.H.; Noren, K.

    1996-09-01

    The current that flows between the electrical test equipment and the nuclear explosive must be limited to safe levels during electrical tests conducted on nuclear explosives at the DOE Pantex facility. The safest way to limit the current is to use batteries that can provide only acceptably low current into a short circuit; unfortunately this is not always possible. When it is not possible, current limiters, along with other design features, are used to limit the current. Three types of current limiters, the fuse blower, the resistor limiter, and the MOSFET-pass-transistor limiters, are used extensively in Pantex test equipment. Detailed failure mode and effects analyses were conducted on these limiters. Two other types of limiters were also analyzed. It was found that there is no best type of limiter that should be used in all applications. The fuse blower has advantages when many circuits must be monitored, a low insertion voltage drop is important, and size and weight must be kept low. However, this limiter has many failure modes that can lead to the loss of over current protection. The resistor limiter is simple and inexpensive, but is normally usable only on circuits for which the nominal current is less than a few tens of milliamperes. The MOSFET limiter can be used on high current circuits, but it has a number of single point failure modes that can lead to a loss of protective action. Because bad component placement or poor wire routing can defeat any limiter, placement and routing must be designed carefully and documented thoroughly.

  4. Directing dendritic cell immunotherapy towards successful cancer treatment

    PubMed Central

    Sabado, Rachel Lubong; Bhardwaj, Nina

    2010-01-01

    The use of dendritic cells (DCs) for tumor immunotherapy represents a powerful approach for harnessing the patient's own immune system to eliminate tumor cells. However, suboptimal conditions for generating potent immunostimulatory DCs, as well as the induction of tolerance and suppression mediated by the tumors and its microenvironment have contributed to limited success. Combining DC vaccines with new approaches that enhance immunogenicity and overcome the regulatory mechanisms underlying peripheral tolerance may be the key to achieving effective and durable anti-tumor immune responses that translate to better clinical outcomes. PMID:20473346

  5. On limit and limit setting.

    PubMed

    Gorney, J E

    1994-01-01

    This article investigates the role of limit and limit setting within the psychoanalytic situation. Limit is understood to be a boundary between self and others, established as an interactional dimension of experience. Disorders of limit are here understood within the context of Winnicott's conception of the "anti-social tendency." Limit setting is proposed as a necessary and authentic response to the patient's acting out via holding and empathic responsiveness, viewed here as a form of boundary delineation. It is proposed that the patient attempts to repair his or her boundary problem through a seeking of secure limits within the analyst. The setting of secure and appropriate limits must arise from a working through of the analyst's own countertransference response to the patient. It is critical that this response be evoked by, and arise from, the immediate therapeutic interaction so that the patient can experience limit setting as simultaneously personal and authentic. PMID:7972580

  6. Predicting Achievement and Motivation.

    ERIC Educational Resources Information Center

    Uguroglu, Margaret; Walberg, Herbert J.

    1986-01-01

    Motivation and nine other factors were measured for 970 students in grades five through eight in a study of factors predicting achievement and predicting motivation. Results are discussed. (Author/MT)

  7. Attractiveness and School Achievement

    ERIC Educational Resources Information Center

    Salvia, John; And Others

    1977-01-01

    The purpose of this study was to ascertain the relationship between rated attractiveness and two measures of school performance. Attractive children received significantly higher report cards and, to some degree, higher achievement test scores than their unattractive peers. (Author)

  8. Student Achievement and Motivation

    ERIC Educational Resources Information Center

    Flammer, Gordon H.; Mecham, Robert C.

    1974-01-01

    Compares the lecture and self-paced methods of instruction on the basis of student motivation and achieveme nt, comparing motivating and demotivating factors in each, and their potential for motivation and achievement. (Authors/JR)

  9. Voices of Resilience: Successful Jamaican Women Educators

    ERIC Educational Resources Information Center

    Dole, Sharon

    2014-01-01

    Through the use of the framework of risk and resilience in a narrative inquiry, the present study examined the protective factors affecting the academic success of 24 Jamaican women in a graduate cohort in educational administration. All but two of the women rose from poverty to become academically successful, defined as having achieved graduate…

  10. Academically Successful Drug Users: An Oxymoron?

    ERIC Educational Resources Information Center

    Evans, William P.; Skager, Rodney

    1992-01-01

    Examined substance use among academically successful high school students. Findings from 3,331 first-year students and 3,515 juniors revealed that over 70 percent of academically successful students reported some type of drug use. Negative association between drug use and academic achievement may be counterbalanced by mediating factors, such as…

  11. Vocational Education Success Stories: Serving Special Populations.

    ERIC Educational Resources Information Center

    Illinois State Council on Vocational Education, Springfield.

    This publication reports on the Illinois Council on Vocational Education's (ICoVE) recognition program. The program was designed to (1) commend achievement in vocational education; (2) collect information about vocational education and evaluate its success; (3) provide a resource guide of successful vocational education programs and activities;…

  12. Measuring research success.

    PubMed

    Halcomb, Elizabeth

    2016-03-01

    Defining successful research can be complex. For novice researchers, success may involve completing research projects and publishing in peer-reviewed journals, but for experienced researchers more complex measures of success come into play. Each researcher's reputation, future grant funding and career prospects depend on the success of each project, and the quality of the researcher's track record. PMID:26997227

  13. Limits to Stability

    ERIC Educational Resources Information Center

    Cottey, Alan

    2012-01-01

    The author reflects briefly on what limited degree of global ecological stability and human cultural stability may be achieved, provided that humanity retains hope and does not give way to despair or hide in denial. These thoughts were triggered by a recent conference on International Stability and Systems Engineering. (Contains 5 notes.)

  14. Assessing for Achievement

    ERIC Educational Resources Information Center

    Creghan, Kathleen Adair; Creghan, Casey

    2013-01-01

    Nothing satisfies a teacher more than seeing a smile of delight on students' faces when they turn over their test paper to reveal a successful score. In today's world of standardized testing, some elementary science teachers may struggle to help students move from active engagement in hands-on science experiences to high levels of…

  15. Achieving the Impossible

    ERIC Educational Resources Information Center

    Anderson, Melissa

    2009-01-01

    Beginning teachers can succeed only if they strongly believe that they can. Believe that it is possible to change each student's life for the better. Believe that all their students can become successful learners. Believe that they can raise their students' test scores. Believe that they will survive and accomplish great things in their first…

  16. Learning Profiles & Achievement

    ERIC Educational Resources Information Center

    Tomlinson, Carol Ann

    2009-01-01

    The premise behind intelligence preferences and learning styles is that students learn in different ways and that teaching and learning would be more effective if students could explore content in ways that work best for them. In this article, the author talks about the place of learning preferences in supporting student success. The author also…

  17. Achieving Their Potential

    ERIC Educational Resources Information Center

    Prouty, Sally T.

    2009-01-01

    Seventy-five years ago, Franklin D. Roosevelt took two crises--a decayed environment and wide unemployment--and combined them to form a single success: the Civilian Conservation Corps (CCC). In the CCC three million young unemployed men dramatically improved the nation's infrastructure. The CCC gave young Americans living in poverty hope. This…

  18. The Personal Marketing Pyramid: A Model for Secretarial Success.

    ERIC Educational Resources Information Center

    Caudill, Donald W.

    1988-01-01

    The author describes his model of a synergistic approach to achieving success. His Personal Marketing Pyramid consists of four sciences: physiology, psychology, sociology, and philosophy. He uses examples related to success in a secretarial career. (CH)

  19. Charting a Path to Success in Virtual Screening

    PubMed Central

    Forli, Stefano

    2015-01-01

    Docking is commonly applied to drug design efforts, especially high-throughput virtual screenings of small molecules, to identify new compounds that bind to a given target. Despite great advances and successful applications in recent years, a number of issues remain unsolved. Most of the challenges and problems faced when running docking experiments are independent of the specific software used, and can be ascribed to either improper input preparation or to the simplified approaches applied to achieve high-throughput speed. Being aware of approximations and limitations of such methods is essential to prevent errors, deal with misleading results, and increase the success rate of virtual screening campaigns. In this review, best practices and most common issues of docking and virtual screening will be discussed, covering the journey from the design of the virtual experiment to the hit identification. PMID:26501243

  20. CLIL Learning: Achievement Levels and Affective Factors

    ERIC Educational Resources Information Center

    Seikkula-Leino, Jaana

    2007-01-01

    The aim of the study was to investigate how successfully pupils had learned content in content and language integrated learning (CLIL) and to assess pupils' affective learning factors, such as motivation and self-esteem, in CLIL. Learning was presented in terms of achievement level, which was described as the relationship between measured levels…

  1. Achieving Organisational Change through Values Alignment

    ERIC Educational Resources Information Center

    Branson, Christopher M.

    2008-01-01

    Purpose: The purpose of this paper is to, first, establish the interdependency between the successful achievement of organisational change and the attainment of values alignment within an organisation's culture and then, second, to describe an effective means for attaining such values alignment. Design/methodology/approach: Literature from the…

  2. Positive Functions of Emotions in Achievement Sports

    ERIC Educational Resources Information Center

    Puig, Nuria; Vilanova, Anna

    2011-01-01

    This article presents the results of two research projects on the emotions of men engaged in achievement outdoor sports. The conditions were analyzed under which emotions carry out positive functions. The question strikes us as a fundamental one, because it is of crucial importance when it comes to increasing sportspeople's success. The…

  3. Assets and Educational Achievement: Theory and Evidence

    ERIC Educational Resources Information Center

    Elliott, William; Sherraden, Michael

    2013-01-01

    This special issue of Economics of Education Review explores the role of savings and asset holding in post-secondary educational achievement. Most college success research has focused on income rather than assets as a predictor, and most college financing policy has focused on tuition support and educational debt, rather than asset accumulation.…

  4. Explorations in achievement motivation

    NASA Technical Reports Server (NTRS)

    Helmreich, Robert L.

    1982-01-01

    Recent research on the nature of achievement motivation is reviewed. A three-factor model of intrinsic motives is presented and related to various criteria of performance, job satisfaction and leisure activities. The relationships between intrinsic and extrinsic motives are discussed. Needed areas for future research are described.

  5. Achieving health care affordability.

    PubMed

    Payson, Norman C

    2002-10-01

    Not all plans are jumping headlong into the consumer-centric arena. In this article, the CEO of Oxford Health Plans discusses how advanced managed care can achieve what other consumer-centric programs seek to do--provide affordable, quality health care. PMID:12391815

  6. Issues in Achievement Testing.

    ERIC Educational Resources Information Center

    Baker, Eva L.

    This booklet is intended to help school personnel, parents, students, and members of the community understand concepts and research relating to achievement testing in public schools. The paper's sections include: (1) test use with direct effects on students (test of certification, selection, and placement); (2) test use with indirect effects on…

  7. Achieving Peace through Education.

    ERIC Educational Resources Information Center

    Clarken, Rodney H.

    While it is generally agreed that peace is desirable, there are barriers to achieving a peaceful world. These barriers are classified into three major areas: (1) an erroneous view of human nature; (2) injustice; and (3) fear of world unity. In a discussion of these barriers, it is noted that although the consciousness and conscience of the world…

  8. Achieving All Our Ambitions

    ERIC Educational Resources Information Center

    Hartley, Tricia

    2009-01-01

    National learning and skills policy aims both to build economic prosperity and to achieve social justice. Participation in higher education (HE) has the potential to contribute substantially to both aims. That is why the Campaign for Learning has supported the ambition to increase the proportion of the working-age population with a Level 4…

  9. Intelligence and Educational Achievement

    ERIC Educational Resources Information Center

    Deary, Ian J.; Strand, Steve; Smith, Pauline; Fernandes, Cres

    2007-01-01

    This 5-year prospective longitudinal study of 70,000+ English children examined the association between psychometric intelligence at age 11 years and educational achievement in national examinations in 25 academic subjects at age 16. The correlation between a latent intelligence trait (Spearman's "g"from CAT2E) and a latent trait of educational…

  10. SALT and Spelling Achievement.

    ERIC Educational Resources Information Center

    Nelson, Joan

    A study investigated the effects of suggestopedic accelerative learning and teaching (SALT) on the spelling achievement, attitudes toward school, and memory skills of fourth-grade students. Subjects were 20 male and 28 female students from two self-contained classrooms at Kennedy Elementary School in Rexburg, Idaho. The control classroom and the…

  11. NCLB: Achievement Robin Hood?

    ERIC Educational Resources Information Center

    Bracey, Gerald W.

    2008-01-01

    In his "Wall Street Journal" op-ed on the 25th of anniversary of "A Nation At Risk", former assistant secretary of education Chester E. Finn Jr. applauded the report for turning U.S. education away from equality and toward achievement. It was not surprising, then, that in mid-2008, Finn arranged a conference to examine the potential "Robin Hood…

  12. INTELLIGENCE, PERSONALITY AND ACHIEVEMENT.

    ERIC Educational Resources Information Center

    MUIR, R.C.; AND OTHERS

    A LONGITUDINAL DEVELOPMENTAL STUDY OF A GROUP OF MIDDLE CLASS CHILDREN IS DESCRIBED, WITH EMPHASIS ON A SEGMENT OF THE RESEARCH INVESTIGATING THE RELATIONSHIP OF ACHIEVEMENT, INTELLIGENCE, AND EMOTIONAL DISTURBANCE. THE SUBJECTS WERE 105 CHILDREN AGED FIVE TO 6.3 ATTENDING TWO SCHOOLS IN MONTREAL. EACH CHILD WAS ASSESSED IN THE AREAS OF…

  13. School Students' Science Achievement

    ERIC Educational Resources Information Center

    Shymansky, James; Wang, Tzu-Ling; Annetta, Leonard; Everett, Susan; Yore, Larry D.

    2013-01-01

    This paper is a report of the impact of an externally funded, multiyear systemic reform project on students' science achievement on a modified version of the Third International Mathematics and Science Study (TIMSS) test in 33 small, rural school districts in two Midwest states. The systemic reform effort utilized a cascading leadership strategy…

  14. Advancing Student Achievement

    ERIC Educational Resources Information Center

    Walberg, Herbert J.

    2010-01-01

    For the last half century, higher spending and many modern reforms have failed to raise the achievement of students in the United States to the levels of other economically advanced countries. A possible explanation, says Herbert Walberg, is that much current education theory is ill informed about scientific psychology, often drawing on fads and…

  15. Essays on Educational Achievement

    ERIC Educational Resources Information Center

    Ampaabeng, Samuel Kofi

    2013-01-01

    This dissertation examines the determinants of student outcomes--achievement, attainment, occupational choices and earnings--in three different contexts. The first two chapters focus on Ghana while the final chapter focuses on the US state of Massachusetts. In the first chapter, I exploit the incidence of famine and malnutrition that resulted to…

  16. Increasing Male Academic Achievement

    ERIC Educational Resources Information Center

    Jackson, Barbara Talbert

    2008-01-01

    The No Child Left Behind legislation has brought greater attention to the academic performance of American youth. Its emphasis on student achievement requires a closer analysis of assessment data by school districts. To address the findings, educators must seek strategies to remedy failing results. In a mid-Atlantic district of the Unites States,…

  17. Setting and Achieving Objectives.

    ERIC Educational Resources Information Center

    Knoop, Robert

    1986-01-01

    Provides basic guidelines which school officials and school boards may find helpful in negotiating, establishing, and managing objectives. Discusses characteristics of good objectives, specific and directional objectives, multiple objectives, participation in setting objectives, feedback on goal process and achievement, and managing a school…

  18. Schools Achieving Gender Equity.

    ERIC Educational Resources Information Center

    Revis, Emma

    This guide is designed to assist teachers presenting the Schools Achieving Gender Equity (SAGE) curriculum for vocational education students, which was developed to align gender equity concepts with the Kentucky Education Reform Act (KERA). Included in the guide are lesson plans for classes on the following topics: legal issues of gender equity,…

  19. Iowa Women of Achievement.

    ERIC Educational Resources Information Center

    Ohrn, Deborah Gore, Ed.

    1993-01-01

    This issue of the Goldfinch highlights some of Iowa's 20th century women of achievement. These women have devoted their lives to working for human rights, education, equality, and individual rights. They come from the worlds of politics, art, music, education, sports, business, entertainment, and social work. They represent Native Americans,…

  20. Achievements or Disasters?

    ERIC Educational Resources Information Center

    Goodwin, MacArthur

    2000-01-01

    Focuses on policy issues that have affected arts education in the twentieth century, such as: interest in discipline-based arts education, influence of national arts associations, and national standards and coordinated assessment. States that whether the policy decisions are viewed as achievements or disasters are for future determination. (CMK)

  1. Minority Achievement Report.

    ERIC Educational Resources Information Center

    Prince George's Community Coll., Largo, MD. Office of Institutional Research and Analysis.

    This report summarizes the achievements of Prince George's Community College (PGCC) with regard to minority outcomes. Table 1 summarizes the undergraduate enrollment trends for African Americans as well as total minorities from fall 1994 through fall 1998. Both the headcount number of African American students and the proportion of African…

  2. Appraising Reading Achievement.

    ERIC Educational Resources Information Center

    Ediger, Marlow

    To determine quality sequence in pupil progress, evaluation approaches need to be used which guide the teacher to assist learners to attain optimally. Teachers must use a variety of procedures to appraise student achievement in reading, because no one approach is adequate. Appraisal approaches might include: (1) observation and subsequent…

  3. Fertility Clinic Success Rates

    MedlinePlus

    ... 2013 Assisted Reproductive Technology Fertility Clinic Success Rates Report Recommend on Facebook Tweet Share Compartir 2013 ART Fertility Clinic Success Rates Report [PDF - 1MB] Bookmarks and thumbnails are available within ...

  4. Teaching Succession with Forests.

    ERIC Educational Resources Information Center

    Stronck, David R.

    1982-01-01

    Suggesting advantages of using forests to teach succession, briefly outlines procedures for gathering evidence of succession including numbers, ages, and sizes of trees. Five plot studies conducted by students at the University of Victoria are also described. (DC)

  5. How Community College African American Students with or without a Father or Male Surrogate Presence at Home Develop Their Personal Identity, Academic Self-Concept, Race Theory, Social Sensitivity, Resiliency, and Vision of Their Own Success and the Influence on Their Academic Achievement

    ERIC Educational Resources Information Center

    Holliday, A'lon Michael

    2011-01-01

    Despite the growing body of research on African American students' academic achievement and the role mothers play in their child's academic development, few studies (Carter, 2008; Fordham, 1988) examined the role fathers play in the development of their child's academic achievement. The primary aim of this study was to examine how…

  6. [Benign prostate hyperplasia: success and limitations of pharmacological therapy].

    PubMed

    Madersbacher, S; Marszalek, M

    2007-10-01

    A profound knowledge of pathogenesis and natural history enables a differentiated therapy for elderly men with lower urinary tract symptoms due to benign prostatic hyperplasia (BPH). The role of phytotherapy is still controversially discussed and, therefore, not clearly recommended by any BPH-guideline. alpha(1)-blockers are the therapy of choice for symptomatic patients at a low risk of disease progression (prostate volume <30-40 ml). 5alpha-reductase inhibitors (5ARI) reduce the prostate volume by 20-25% and the risk for acute urinary retention/surgery by more than 50% compared to placebo. Combination therapy (alpha(1)-blocker plus 5ARI) is superior to either monotherapy, though this advantage is only demonstrable after a prolonged treatment period (>12 months). PMID:17426942

  7. Worthy Goals, Limited Success: Intervention Programs in California

    ERIC Educational Resources Information Center

    EdSource, 2007

    2007-01-01

    The 1999 Public Schools Accountability Act (PSAA) created a system for summarizing performance on state standardized tests and an intervention program to help schools that were not meeting state-set goals. California's test scores have improved substantially since then, but state-led interventions programs have had little overall effect on this…

  8. Canada's Voluntary ARET Program: Limited Success Despite Industry Cosponsorship

    ERIC Educational Resources Information Center

    Antweiler, Werner; Harrison, Kathryn

    2007-01-01

    The Accelerated Reduction/Elimination of Toxins (ARET) Challenge was a voluntary program initiated in 1994 by the Government of Canada. Unlike the U.S. 33/50 Program, ARET involved industry partners in negotiation and cosponsorship of the program, with the intention that early involvement would yield stronger commitment to voluntary reductions. We…

  9. Achieving adolescent adherence to treatment of major depression

    PubMed Central

    Staton, Dennis

    2010-01-01

    When treatments are ordered for adolescent major depression, or for other adolescent medical illnesses, adherence and clinical outcomes are likely to be unsatisfactory, unless 4 basic principles of the medical treatment of adolescent illness are implemented. These comprise providing effective patient and parent/caregiver education, establishing effective patient and caregiver therapeutic alliances, providing effective treatment, and managing other factors associated with treatment adherence as indicated. The goals of treatment are to achieve the earliest possible response and remission. Failure to treat adolescent major depression successfully has potentially serious consequences, including worsened adherence, long-term morbidity, and suicide attempt. Accordingly, prescribed treatment must be aggressively managed. Doses of an antidepressant medication should be increased as rapidly as can be tolerated, preferably every 1–2 weeks, until full remission is achieved or such dosing is limited by the emergence of unacceptable adverse effects. A full range of medication treatment options must be employed if necessary. Treatment adherence, occurrence of problematic adverse effects, clinical progress, and safety must be systematically monitored. Adolescents with major depression must be assessed for risk of harm to self or others. When this risk appears significant, likelihood of successful outcomes will be enhanced by use of treatment plans that comprehensively address factors associated with treatment nonadherence. Abbreviated and comprehensive plans for the treatment of potentially fatal adolescent illnesses are outlined in this review. PMID:24600263

  10. Density Limits in Toroidal Magnetic Confinement Experiments

    NASA Astrophysics Data System (ADS)

    Greenwald, Martin

    2001-10-01

    The density limit represents one of the fundamental operating boundaries for magnetic confinement devices - one with practical importance to the goal of fusion power. With fusion reactivity maximized at a plasma temperature on the order of 10 keV and a reaction rate scaling as n^2, an optimum density can be calculated which is not guaranteed to be achievable in any given device. Unlike operational limits for plasma current or pressure, the density limit cannot be explained by magneto-hydrodynamics alone. There is general agreement that the proximate cause for the disruptive limit in the tokamak is cooling of the plasma edge and subsequent current profile shrinkage. The edge cooling may be dominated by atomic physics processes or as suggested in recent experiments, by anomalous transport. A similar picture is emerging for the reversed field pinch (RFP), while the limit in stellarators is apparently due to loss of thermal equilibrium from radiation. Empirical scaling laws in which the maximum plasma density is proportional to the average current density have been fairly successful in predicting the limit for subsequent experiments. Surprisingly, the density limits found in tokamaks and RFPs are virtually identical. Currentless stellarators reach similar density limits, though the expression needs to be recast in terms of the rotational transform. While scaling laws have done a reasonable job in describing data from many recent experiments, they can only give hints at the underlying physics. Understanding the mechanism for the density limit is crucial for extrapolating machine performance into untested regimes and so far, a completely satisfactory theory has not emerged. It seems likely that robust, reliable predictions will only come from the development of a first-principles theory backed up by detailed experimental observations. The extensive work already accomplished and reviewed here should provide a solid basis for such development.

  11. GaN-on-glass success

    NASA Astrophysics Data System (ADS)

    2011-12-01

    The successful growth of GaN-based LEDs on amorphous glass avoids the size and cost limitations of a sapphire substrate, says Jun Hee Choi from the Samsung Advanced Institute of Technology in South Korea.

  12. Project ACHIEVE final report

    SciTech Connect

    1997-06-13

    Project ACHIEVE was a math/science academic enhancement program aimed at first year high school Hispanic American students. Four high schools -- two in El Paso, Texas and two in Bakersfield, California -- participated in this Department of Energy-funded program during the spring and summer of 1996. Over 50 students, many of whom felt they were facing a nightmare future, were given the opportunity to work closely with personal computers and software, sophisticated calculators, and computer-based laboratories -- an experience which their regular academic curriculum did not provide. Math and science projects, exercises, and experiments were completed that emphasized independent and creative applications of scientific and mathematical theories to real world problems. The most important outcome was the exposure Project ACHIEVE provided to students concerning the college and technical-field career possibilities available to them.

  13. Achieving Goal Blood Pressure.

    PubMed

    Laurent, Stéphane

    2015-07-01

    Both monotherapy and combination therapy options are appropriate for antihypertensive therapy according to the 2013 European Society of Hypertension (ESH)/European Society of Cardiology (ESC) guidelines. Most patients require more than one agent to achieve blood pressure (BP) control, and adding a second agent is more effective than doubling the dose of existing therapy. The addition of a third agent may be required to achieve adequate BP reductions in some patients. Single-pill fixed-dose combinations (FDCs) allow multiple-drug regimens to be delivered without any negative impact on patient compliance or persistence with therapy. FDCs also have documented beneficial clinical effects and use of FDCs containing two or three agents is recommended by the 2013 ESH/ESC guidelines. PMID:26002423

  14. Four malaria success stories: how malaria burden was successfully reduced in Brazil, Eritrea, India, and Vietnam.

    PubMed

    Barat, Lawrence M

    2006-01-01

    While many countries struggle to control malaria, four countries, Brazil, Eritrea, India, and Vietnam, have successfully reduced malaria burden. To determine what led these countries to achieve impact, published and unpublished reports were reviewed and selected program and partner staff were interviewed to identify common factors that contributed to these successes. Common success factors included conducive country conditions, a targeted technical approach using a package of effective tools, data-driven decision-making, active leadership at all levels of government, involvement of communities, decentralized implementation and control of finances, skilled technical and managerial capacity at national and sub-national levels, hands-on technical and programmatic support from partner agencies, and sufficient and flexible financing. All these factors were essential in achieving success. If the goals of Roll Back Malaria are to be achieved, governments and their partners must take the lessons learned from these program successes and apply them in other affected countries. PMID:16407339

  15. On Limits

    NASA Technical Reports Server (NTRS)

    Holzmann, Gerard J.

    2008-01-01

    In the last 3 decades or so, the size of systems we have been able to verify formally with automated tools has increased dramatically. At each point in this development, we encountered a different set of limits -- many of which we were eventually able to overcome. Today, we may have reached some limits that may be much harder to conquer. The problem I will discuss is the following: given a hypothetical machine with infinite memory that is seamlessly shared among infinitely many CPUs (or CPU cores), what is the largest problem size that we could solve?

  16. Limits on nonlinear electrodynamics

    NASA Astrophysics Data System (ADS)

    Fouché, M.; Battesti, R.; Rizzo, C.

    2016-05-01

    In this paper we set a framework in which experiments whose goal is to test QED predictions can be used in a more general way to test nonlinear electrodynamics (NLED) which contains low-energy QED as a special case. We review some of these experiments and we establish limits on the different free parameters by generalizing QED predictions in the framework of NLED. We finally discuss the implications of these limits on bound systems and isolated charged particles for which QED has been widely and successfully tested.

  17. Successful radiotherapy of facial angiosarcoma.

    PubMed

    Gkalpakiotis, S; Arenberger, P; Vohradnikova, O; Arenbergerova, M

    2008-11-01

    Cutaneous angiosarcoma of the face and scalp is a rare malignant vascular tumor that affects mostly Caucasian elderly males. At present, connections concerning the etiology of this neoplasm with radiation therapy, exposure to environmental carcinogens and chronic lymphedema have been described. Due to the difficult histologic evaluation, high local recurrence and tendency to early metastasing, angiosarcoma poses generally a very poor prognosis. We report the case of an 80-year-old patient who experienced successful removal of large, exophytic growing angiosarcoma of the face achieved with radiotherapy with long-term relapse-free survival. PMID:18986458

  18. Achieving Magnet status.

    PubMed

    Ellis, Beckie; Gates, Judy

    2005-01-01

    Magnet has become the gold standard for nursing excellence. It is the symbol of effective and safe patient care. It evaluates components that inspire safe care, including employee satisfaction and retention, professional education, and effective interdisciplinary collaboration. In an organization whose mission focuses on excellent patient care, Banner Thunderbird Medical Center found that pursuing Magnet status was clearly the next step. In this article, we will discuss committee selection, education, team building, planning, and the discovery process that define the Magnet journey. The road to obtaining Magnet status has permitted many opportunities to celebrate our achievements. PMID:16056158

  19. Academic attainment and the high school science experiences among high-achieving African American males

    NASA Astrophysics Data System (ADS)

    Trice, Rodney Nathaniel

    This study examines the educational experiences of high achieving African American males. More specifically, it analyzes the influences on their successful navigation through high school science. Through a series of interviews, observations, questionnaires, science portfolios, and review of existing data the researcher attempted to obtain a deeper understanding of high achieving African American males and their limitations to academic attainment and high school science experiences. The investigation is limited to ten high achieving African American male science students at Woodcrest High School. Woodcrest is situated at the cross section of a suburban and rural community located in the southeastern section of the United States. Although this investigation involves African American males, all of whom are successful in school, its findings should not be generalized to this nor any other group of students. The research question that guided this study is: What are the limitations to academic attainment and the high school science experiences of high achieving African American males? The student participants expose how suspension and expulsion, special education placement, academic tracking, science instruction, and teacher expectation influence academic achievement. The role parents play, student self-concept, peer relationships, and student learning styles are also analyzed. The anthology of data rendered three overarching themes: (1) unequal access to education, (2) maintenance of unfair educational structures, and (3) authentic characterizations of African American males. Often the policies and practices set in place by school officials aid in creating hurdles to academic achievement. These policies and practices are often formed without meaningful consideration of the unintended consequences that may affect different student populations, particularly the most vulnerable. The findings from this study expose that high achieving African American males face major

  20. Malaria control: achievements, problems and strategies.

    PubMed

    Nájera, J A

    2001-06-01

    Even if history has not always been the Magistra vitae, Cicero expected it to be, it should provide, as Baas said, a mirror in which to observe and compare the past and present in order to draw therefrom well-grounded conclusions for the future. Based on this belief, this paper aims to provide an overview of the foundations and development of malaria control policies during the XX century. It presents an analysis of the conflicting tendencies which shaped the development of these policies and which appear to have oscillated between calls for frontal attack in an all-out campaign and calls for sustainable gains, even if slow. It discusses the various approaches to the control of malaria, their achievements and their limitations, not only to serve as a background to understand better the foundations of current policies, but also to prevent that simplistic generalisations may again lead to exaggerated expectations and disillusion. The first part of the paper is devoted to the development of malaria control during the first half of the century, characterised by the ups and downs in the reliance on mosquito control as the control measure applicable everywhere. The proliferation of "man-made-malaria", which accompanied the push for economic development in most of the endemic countries, spurred the need for control interventions and, while great successes were obtained in many specific projects, the general campaigns proposed by the enthusiasts of vector control faced increasing difficulties in their practical implementation in the field. Important events, which may be considered representative of this period are, on the campaign approach, the success of Gorgas in the Panama Canal, but also the failure of the Mian Mir project in India; while on the developmental approach, the Italian and Dutch schools of malariology, the Tennessee Valley and the development of malaria sanitation, included the so called species sanitation. The projection of these developments to a global

  1. Family Limitation

    PubMed Central

    Smith, Robert

    1966-01-01

    Dr Robert Smith surveys the history of birth control and sounds a warning for the future of mankind, if the population explosion is allowed to continue unchecked. He stresses the importance of the role of the general practitioner in the limitation of births. Sir Theodore Fox describes the work of the Family Planning Association and stresses that, increasingly, this is a specialist service covering all aspects of fertility. He also feels that the general practitioner has a role in family planning. PMID:5954261

  2. Recognizing outstanding achievements

    NASA Astrophysics Data System (ADS)

    Speiss, Fred

    One function of any professional society is to provide an objective, informed means for recognizing outstanding achievements in its field. In AGU's Ocean Sciences section we have a variety of means for carrying out this duty. They include recognition of outstanding student presentations at our meetings, dedication of special sessions, nomination of individuals to be fellows of the Union, invitations to present Sverdrup lectures, and recommendations for Macelwane Medals, the Ocean Sciences Award, and the Ewing Medal.Since the decision to bestow these awards requires initiative and judgement by members of our section in addition to a deserving individual, it seems appropriate to review the selection process for each and to urge you to identify those deserving of recognition.

  3. Difficulties Encountered and the Degree of Success Achieved in Implementing the Decrees of the Twenty-Third Congress of the Communist Party, U. S. S. R. Relating to the "Conditions and Measures for Further Improving the Work of the Secondary Compulsory Educational School." Final Report.

    ERIC Educational Resources Information Center

    Bratcher, John Vance

    The Twenty-Third Congress of the Communist Party of the Soviet Union, which convened in 1968, directed that universal secondary education be implemented in 1970. The purpose of this study was to ascertain the difficulties and successes of implementation procedures. Party and State decrees after 1968 necessitated such concomitant changes at all…

  4. Student Success. March 2006

    ERIC Educational Resources Information Center

    Online Submission, 2006

    2006-01-01

    "Student Success" is EPI's occasional e-magazine dedicated to the discussion of retaining students in higher education. Over the course of the next issues of "Student Success," the Educational Policy Institute (EPI) will explore three questions about retention on our college campuses. Part I will look at the barriers to student retention, both…

  5. Success in Library School.

    ERIC Educational Resources Information Center

    Magrill, Rose Mary; Rinehart, Constance

    1979-01-01

    Data on admission characteristics and performance in library school were collected for students entering the A.M.L.S. program at the University of Michigan. Success measures--completion of degree, G.P.A., and amount of time required to complete degree--showed little relation to admission variables in determining success. (Author/MBR)

  6. Student Success Center Toolkit

    ERIC Educational Resources Information Center

    Jobs For the Future, 2014

    2014-01-01

    "Student Success Center Toolkit" is a compilation of materials organized to assist Student Success Center directors as they staff, launch, operate, and sustain Centers. The toolkit features materials created and used by existing Centers, such as staffing and budgeting templates, launch materials, sample meeting agendas, and fundraising…

  7. Blueprint for Success.

    ERIC Educational Resources Information Center

    Smith, Curtis A.

    1992-01-01

    key to facilities planning and successful bond issues is involving public. Taxpayers are unlikely to support superintendent's plan but will certainly vote for their own plan. Success means ensuring fiscally uncluttered pathway, retaining an architect, and working with demographer. Appointing broad-based community task force of about 30 members,…

  8. Measuring Student Success

    ERIC Educational Resources Information Center

    Baldwin, Christopher; Bensimon, Estela Mara; Dowd, Alicia C.; Kleiman, Lisa

    2011-01-01

    Student success is at the heart of both institutional effectiveness and the community college mission, yet measuring such success at community colleges is problematic. This article highlights three efforts to grapple with this problem--a multistate work group of system- and state-level policymakers to create an improved set of student success…

  9. The UKIRT Success Story

    NASA Astrophysics Data System (ADS)

    Ellis, Richard

    This is a personal overview of the great success of the UKIRT facility; a tribute to those who designed, built and operated it and helped put UK astronomy at the forefront of world infrared observations. I will illustrate this success with a small selection of science highlights.

  10. Swedish Successful Schools Revisited

    ERIC Educational Resources Information Center

    Hoog, Jonas; Johansson, Olof; Olofsson, Anders

    2009-01-01

    Purpose: The purpose of this paper is to describe the results of a follow-up study of two Swedish schools in which, five years previously, the principals had been successful leaders. Had this success been maintained? Design/methodology/approach: Two schools were revisited to enable the authors to interview principals and teachers as well as…

  11. Focused on Student Success

    ERIC Educational Resources Information Center

    California Community Colleges, Chancellor's Office, 2014

    2014-01-01

    In January 2011, the California Community Colleges Board of Governors formed a task force to chart a roadmap for system-wide focus on student success. The task force identified best practices and designed evidence-based recommendations to ensure student success is a driving theme in colleges. This comprehensive plan, known as the Student Success…

  12. The Student Success Coach

    ERIC Educational Resources Information Center

    Neuhauser, Claudia; Weber, Kendra

    2011-01-01

    An innovative position, a Student Success Coach, was created in response to a newly developed undergraduate-degree program on the recently established University of Minnesota Rochester campus. Student Success Coaches serve as the link between the academic and student affairs sides of the campus. They interact closely with students and faculty to…

  13. Momentum and Success

    ERIC Educational Resources Information Center

    Kunz, William

    2008-01-01

    Success begets success and opportunity begets opportunity. This principle is something that the author sees at work in his own life. One example of opportunities begetting opportunities is the experience he had at the Academy of Science and Technology to practice his programming skills. The Academy served as a great training ground for what would…

  14. Predictors of Postsecondary Success

    ERIC Educational Resources Information Center

    Hein, Vanessa; Smerdon, Becky; Sambolt, Megan

    2013-01-01

    The purpose of this brief is to provide information to state, district, and school personnel seeking support to determine whether their students are on a path to postsecondary success. The College and Career Readiness and Success Center (CCRS Center) has received technical assistance requests from a number of states regarding factors that predict…

  15. Principal Experiences of Succession

    ERIC Educational Resources Information Center

    Steele, Farla Gay

    2015-01-01

    This multiple case study explored the experiences of school principals and the usefulness of Peters' (2011) succession planning model. Ten purposefully selected principals from varying grade levels were interviewed; none reported a formal succession plan, and all had been assistant principals. The study concluded the assistant principal position…

  16. Leadership Succession. Essays

    ERIC Educational Resources Information Center

    Hargreaves, Andy

    2005-01-01

    One of the most significant events in the life of a school is a change in its leadership. Yet few things in education succeed less than leadership succession. Failure to care for leadership succession is sometimes a result of manipulation or self-centeredness; but more often it is oversight, neglect, or the pressures of crisis management that are…

  17. Getting Set for Success.

    ERIC Educational Resources Information Center

    Santa Rita, Emilio

    These career development materials consist of three booklets: the text, success portfolio, and facilitator's guide. Unit 1 in the text tests the students' coping skills. Contracts in the success portfolio for this unit enable the student to determine the sources of stress and ways of coping; describe different procedures for managing time; assess…

  18. Student academic achievement in college chemistry

    NASA Astrophysics Data System (ADS)

    Tabibzadeh, Kiana S.

    General Chemistry is required for variety of baccalaureate degrees, including all medical related fields, engineering, and science majors. Depending on the institution, the prerequisite requirement for college level General Chemistry varies. The success rate for this course is low. The purpose of this study is to examine the factors influencing student academic achievement and retention in General Chemistry at the college level. In this study student achievement is defined by those students who earned grades of "C" or better. The dissertation contains in-depth studies on influence of Intermediate Algebra as a prerequisite compared to Fundamental Chemistry for student academic achievement and student retention in college General Chemistry. In addition the study examined the extent and manner in which student self-efficacy influences student academic achievement in college level General Chemistry. The sample for this part of the study is 144 students enrolled in first semester college level General Chemistry. Student surveys determined student self-efficacy level. The statistical analyses of study demonstrated that Fundamental Chemistry is a better prerequisite for student academic achievement and student retention. The study also found that student self-efficacy has no influence on student academic achievement. The significance of this study will be to provide data for the purpose of establishing a uniform and most suitable prerequisite for college level General Chemistry. Finally the variables identified to influence student academic achievement and enhance student retention will support educators' mission to maximize the students' ability to complete their educational goal at institutions of higher education.

  19. Disparities in academic achievement and health: the intersection of child education and health policy.

    PubMed

    Fiscella, Kevin; Kitzman, Harriet

    2009-03-01

    Recent data suggest that that the United States is failing to make significant progress toward the Healthy People 2010 goal of eliminating health disparities. One missing element from the US strategy for achieving this goal is a focus on gaps in child development and achievement. Academic achievement and education seem to be critical determinants of health across the life span and disparities in one contribute to disparities in the other. Despite these linkages, national policy treats child education and health as separate. Landmark education legislation, the No Child Left Behind Act of 2001, is due for Congressional reauthorization. It seeks to eliminate gaps in academic child achievement by 2014. It does so by introducing accountability for states, school districts, and schools. In this special article, we review health disparities and contributors to child achievement gaps. We review changes in achievement gaps over time and potential contributors to the limited success of the No Child Left Behind Act of 2001, including its unfunded mandates and unfounded assumptions. We conclude with key reforms, which include addressing gaps in child school readiness through adequate investment in child health and early education and reductions in child poverty; closing the gap in child achievement by ensuring equity in school accountability standards; and, importantly, ensuring equity in school funding so that resources are allocated on the basis of the needs of the students. This will ensure that schools, particularly those serving large numbers of poor and minority children, have the resources necessary to promote optimal learning. PMID:19255042

  20. Impediments to the success of management actions for species recovery.

    PubMed

    Ng, Chooi Fei; Possingham, Hugh P; McAlpine, Clive A; de Villiers, Deidré L; Preece, Harriet J; Rhodes, Jonathan R

    2014-01-01

    Finding cost-effective management strategies to recover species declining due to multiple threats is challenging, especially when there are limited resources. Recent studies offer insights into how costs and threats can influence the best choice of management actions. However, when implementing management actions in the real-world, a range of impediments to management success often exist that can be driven by social, technological and land-use factors. These impediments may limit the extent to which we can achieve recovery objectives and influence the optimal choice of management actions. Nonetheless, the implications of these impediments are not well understood, especially for recovery planning involving multiple actions. We used decision theory to assess the impact of these types of impediments for allocating resources among recovery actions to mitigate multiple threats. We applied this to a declining koala (Phascolarctos cinereus) population threatened by habitat loss, vehicle collisions, dog attacks and disease. We found that the unwillingness of dog owners to restrain their dogs at night (a social impediment), the effectiveness of wildlife crossings to reduce vehicle collisions (a technological impediment) and the unavailability of areas for restoration (a land-use impediment) significantly reduced the effectiveness of our actions. In the presence of these impediments, achieving successful recovery may be unlikely. Further, these impediments influenced the optimal choice of recovery actions, but the extent to which this was true depended on the target koala population growth rate. Given that species recovery is an important strategy for preserving biodiversity, it is critical that we consider how impediments to the success of recovery actions modify our choice of actions. In some cases, it may also be worth considering whether investing in reducing or removing impediments may be a cost-effective course of action. PMID:24699170

  1. Impediments to the Success of Management Actions for Species Recovery

    PubMed Central

    Ng, Chooi Fei; Possingham, Hugh P.; McAlpine, Clive A.; de Villiers, Deidré L.; Preece, Harriet J.; Rhodes, Jonathan R.

    2014-01-01

    Finding cost-effective management strategies to recover species declining due to multiple threats is challenging, especially when there are limited resources. Recent studies offer insights into how costs and threats can influence the best choice of management actions. However, when implementing management actions in the real-world, a range of impediments to management success often exist that can be driven by social, technological and land-use factors. These impediments may limit the extent to which we can achieve recovery objectives and influence the optimal choice of management actions. Nonetheless, the implications of these impediments are not well understood, especially for recovery planning involving multiple actions. We used decision theory to assess the impact of these types of impediments for allocating resources among recovery actions to mitigate multiple threats. We applied this to a declining koala (Phascolarctos cinereus) population threatened by habitat loss, vehicle collisions, dog attacks and disease. We found that the unwillingness of dog owners to restrain their dogs at night (a social impediment), the effectiveness of wildlife crossings to reduce vehicle collisions (a technological impediment) and the unavailability of areas for restoration (a land-use impediment) significantly reduced the effectiveness of our actions. In the presence of these impediments, achieving successful recovery may be unlikely. Further, these impediments influenced the optimal choice of recovery actions, but the extent to which this was true depended on the target koala population growth rate. Given that species recovery is an important strategy for preserving biodiversity, it is critical that we consider how impediments to the success of recovery actions modify our choice of actions. In some cases, it may also be worth considering whether investing in reducing or removing impediments may be a cost-effective course of action. PMID:24699170

  2. Achievement Goals and Achievement Emotions: A Meta-Analysis

    ERIC Educational Resources Information Center

    Huang, Chiungjung

    2011-01-01

    This meta-analysis synthesized 93 independent samples (N = 30,003) in 77 studies that reported in 78 articles examining correlations between achievement goals and achievement emotions. Achievement goals were meaningfully associated with different achievement emotions. The correlations of mastery and mastery approach goals with positive achievement…

  3. Density limit studies on DIII-D

    SciTech Connect

    Maingi, R.; Mahdavi, M.A.; Petrie, T.W.

    1998-08-01

    The authors have studied the processes limiting plasma density and successfully achieved discharges with density {approximately}50% above the empirical Greenwald density limit with H-mode confinement. This was accomplished by density profile control, enabled through pellet injection and divertor pumping. By examining carefully the criterion for MARFE formation, the authors have derived an edge density limit with scaling very similar to Greenwald scaling. Finally, they have looked in detail at the first and most common density limit process in DIII-D, total divertor detachment, and found that the local upstream separatrix density (n{sub e}{sup sep,det}) at detachment onset (partial detachment) increases with the scrape-off layer heating power, P{sub heat}, i.e., n{sub e}{sup sep,det} {approximately} P{sub heat}{sup 0.76}. This is in marked contrast to the line-average density at detachment which is insensitive to the heating power. The data are in reasonable agreement with the Borass model, which predicted that the upstream density at detachment would increase as P{sub heat}{sup 0.7}.

  4. Visual Factors Which Affect Reading Achievement.

    ERIC Educational Resources Information Center

    Flax, Nathan

    The relationship between vision and reading achievement is complex. In this paper, a number of terms relating to vision are defined and some of the limitations of specific measures of vision are discussed. In order to relate vision to reading, it is necessary to segment arbitrarily the continuous process of vision into a series of subsystems, or…

  5. Achieving Provider Engagement

    PubMed Central

    Greenfield, Geva; Pappas, Yannis; Car, Josip; Majeed, Azeem; Harris, Matthew

    2014-01-01

    The literature on integrated care is limited with respect to practical learning and experience. Although some attention has been paid to organizational processes and structures, not enough is paid to people, relationships, and the importance of these in bringing about integration. Little is known, for example, about provider engagement in the organizational change process, how to obtain and maintain it, and how it is demonstrated in the delivery of integrated care. Based on qualitative data from the evaluation of a large-scale integrated care initiative in London, United Kingdom, we explored the role of provider engagement in effective integration of services. Using thematic analysis, we identified an evolving engagement narrative with three distinct phases: enthusiasm, antipathy, and ambivalence, and argue that health care managers need to be aware of the impact of professional engagement to succeed in advancing the integrated care agenda. PMID:25212855

  6. Genetic improvement of leaf photosynthesis and intrinsic water use efficiency in C3 plants: Why so much little success?

    PubMed

    Flexas, J

    2016-10-01

    There is an urgent need for simultaneously increasing photosynthesis/yields and water use efficiency (WUE) in C3 crops. Potentially, this can be achieved by genetic manipulation of the key traits involved. However, despite significant efforts in the past two decades very limited success has been achieved. Here I argue that this is mostly due to the fact that single gene/single trait approaches have been used thus far. Photosynthesis models demonstrate that only limited improving of photosynthesis can be expected by large improvements of any of its single limiting factors, i.e. stomatal conductance, mesophyll conductance, and the biochemical capacity for photosynthesis, the latter co-limited by Rubisco and the orchestrated activity of thylakoid electron transport and the Calvin cycle enzymes. Accordingly, only limited improvements of photosynthesis have been obtained by genetic manipulation of any of these single factors. In addition, improving photosynthesis by genetic manipulation in general reduced WUE, and vice-versa, and in many cases pleiotropic effects appear that cancel out some of the expected benefits. I propose that success in genetic manipulation for simultaneous improvement of photosynthesis and WUE efficiency may take longer than suggested in previous reports, and that it can be achieved only by joint projects addressing multi-gene manipulation for simultaneous alterations of all the limiting factors of photosynthesis, including the often neglected phloem capacity for loading and transport the expected surplus of carbohydrates in plants with improved photosynthesis. PMID:27593473

  7. Some Cognitive Style Variables and Their Relationships to Chemistry Achievement.

    ERIC Educational Resources Information Center

    Fazio, Frank; Zambotti, Geno

    1977-01-01

    Investigates several aspects or modes of cognitive functioning, or styles, that may be indicative or predictive of success in undergraduate chemistry achievement. A concurrent investigation was also made of nonscience majors' congnitive styles. (Author/HM)

  8. The Homogeneity of School Achievement.

    ERIC Educational Resources Information Center

    Cahan, Sorel

    Since the measurement of school achievement involves the administration of achievement tests to various grades on various subjects, both grade level and subject matter contribute to within-school achievement variations. To determine whether achievement test scores vary most among different fields within a grade level, or within fields among…

  9. Goodbye Career, Hello Success.

    ERIC Educational Resources Information Center

    Komisar, Randy

    2000-01-01

    Success in today's economy means throwing out the old career rules. The "noncareer" career is driven by passion for the work and has the fluidity and flexibility needed in the contemporary workplace. (JOW)

  10. Strategies for Success.

    ERIC Educational Resources Information Center

    Harris, J. Jerome

    1990-01-01

    Rather than use their energies to explain their failures, Blacks need to develop strategies for success. Uses examples from the Atlanta Public Schools to illustrate how Blacks can use effective schools research to improve urban, Black education. (FMW)

  11. HEPEX - achievements and challenges!

    NASA Astrophysics Data System (ADS)

    Pappenberger, Florian; Ramos, Maria-Helena; Thielen, Jutta; Wood, Andy; Wang, Qj; Duan, Qingyun; Collischonn, Walter; Verkade, Jan; Voisin, Nathalie; Wetterhall, Fredrik; Vuillaume, Jean-Francois Emmanuel; Lucatero Villasenor, Diana; Cloke, Hannah L.; Schaake, John; van Andel, Schalk-Jan

    2014-05-01

    HEPEX is an international initiative bringing together hydrologists, meteorologists, researchers and end-users to develop advanced probabilistic hydrological forecast techniques for improved flood, drought and water management. HEPEX was launched in 2004 as an independent, cooperative international scientific activity. During the first meeting, the overarching goal was defined as: "to develop and test procedures to produce reliable hydrological ensemble forecasts, and to demonstrate their utility in decision making related to the water, environmental and emergency management sectors." The applications of hydrological ensemble predictions span across large spatio-temporal scales, ranging from short-term and localized predictions to global climate change and regional modeling. Within the HEPEX community, information is shared through its blog (www.hepex.org), meetings, testbeds and intercompaison experiments, as well as project reportings. Key questions of HEPEX are: * What adaptations are required for meteorological ensemble systems to be coupled with hydrological ensemble systems? * How should the existing hydrological ensemble prediction systems be modified to account for all sources of uncertainty within a forecast? * What is the best way for the user community to take advantage of ensemble forecasts and to make better decisions based on them? This year HEPEX celebrates its 10th year anniversary and this poster will present a review of the main operational and research achievements and challenges prepared by Hepex contributors on data assimilation, post-processing of hydrologic predictions, forecast verification, communication and use of probabilistic forecasts in decision-making. Additionally, we will present the most recent activities implemented by Hepex and illustrate how everyone can join the community and participate to the development of new approaches in hydrologic ensemble prediction.

  12. Achievements of schistosomiasis control in China.

    PubMed

    Yuan, Hongchang; Jiang, Qingwu; Zhao, Genming; He, Na

    2002-01-01

    The control of schistosomiasis has been spectacularly successful in terms of controlling endemicity and severity of the disease during the last 50 years. It can be categorized into two stages. From 1955 through 1980, the transmission-control strategy had been widely and successfully carried out. By the end of 1980, the epidemic of schistosomiasis was successfully circumscribed in certain core regions including areas at the middle and low reaches of the Yangtze River and some mountainous areas in Sichuan and Yunnan provinces, where control of schistosomiasis had been demonstrated to be very difficult to be sustained. Therefore, since 1980, schistosomiasis control in China has been modified to employ a stepwise strategy, based on which morbidity control has been given priorities and if possible transmission control has been pursued. However, since snail-ridden areas remain unchanged so far, reinfections occur frequently. This necessitates a maintenance phase to consolidate the achievements in the control of schistosomiasis. In the mean time, we are challenged with some environmental, social and economical changes in terms of controlling schistosomiasis. Successfully controlling schistosomiasis in China is still a long-term task but will be achieved without doubt along with the economic development and the promotion of living and cultural standard of people. PMID:12426618

  13. Forest succession models

    SciTech Connect

    Shugart, H.H. Jr.; West, D.C.

    1980-05-01

    Studies in succession attempt to determine the changes in species composition and other ecosystem attributes expected to occur over periods of time. Mathematical models developed in forestry and ecology to study ecological succession are reviewed. Tree models, gap models and forest models are discussed. Model validation or testing procedures are described. Model applications can involve evaluating large-scale and long-term changes in the ambient levels of pollutants and assessing the effects of climate change on the environment. (RJC)

  14. Designed for Successful Learning.

    ERIC Educational Resources Information Center

    Meers, Gary; Wiseman, Kim

    2002-01-01

    Suggests that further exploration into alternative ways of presenting content and achieving required learning sets is needed. Points out that current research in human cognition and multiple intelligences can set the stage for enhanced learning opportunities for students. (DDR)

  15. How Schools Sustain Success

    ERIC Educational Resources Information Center

    Chrisman, Valerie

    2005-01-01

    A growing number of the US schools, under the microscope of increased accountability, are identified as underperforming on the basis of low-test scores. Yet sustained increases in student achievement are problematic for underperforming schools.

  16. Factors Related to Women's Undergraduate Success

    ERIC Educational Resources Information Center

    Baker, Tanya Michelle

    2013-01-01

    This quantitative study examined the relationships and effects of women's learning styles and achievement and success at a Midwestern, private, Catholic, liberal arts women's undergraduate program. The primary focus was on first-year female students' learning styles and how these learning styles may affect their GPAs and decisions to persist to…

  17. Predicting Success in a Gateway Mathematics Course

    ERIC Educational Resources Information Center

    Morrison, Michael C.; Schmit, Shelly

    2010-01-01

    A logit model predicting student outcomes for a gateway course, Math for Liberal Arts, was successfully developed which fits the data well. Two variables, ACT math score and high school GPA, were found to be significant predictors of achieving a C or better in Math for Liberal Arts. A practical implication of the study suggests that with just two…

  18. Predictors of Academic Success for Optometry Students

    ERIC Educational Resources Information Center

    Buckingham, Robert S.

    2012-01-01

    Optometry school admissions are very competitive. With more applicants than available slots, admission committees must choose those students whom they feel will be successful graduates. Previous studies in the health profession schools have demonstrated that the predictors of academic achievement are preadmission science grade point average (GPA),…

  19. Clicking Your Way to Student Success!

    ERIC Educational Resources Information Center

    Bostwick, Dianna; Foster, John; Bloomfield, Amie; Rutledge, Paul

    2013-01-01

    According to the authors, their field has been in a constant state of change and evolution, from manual arts to vocational education to career and technical education (CTE). In a recent effort to increase academic and occupational achievement and success for all CTE students through targeted improvement plans, the state of Pennsylvania implemented…

  20. Predicting First Year University Students' Academic Success

    ERIC Educational Resources Information Center

    Olani, Aboma

    2009-01-01

    Introduction: Premature withdrawal from university due to academic failure can present problems for students, families and educators. In an effort to widen the understanding regarding factors predicting academic success in higher institutions, prior academic achievement measures (preparatory school grade average point (GPA), aptitude test scores,…