WorldWideScience

Sample records for model minority success

  1. Complicating the Image of Model Minority Success: A Review of Southeast Asian American Education

    Science.gov (United States)

    Ngo, Bic; Lee, Stacey J.

    2007-01-01

    Similar to other Asian American students, Southeast Asian American students are often stereotyped by the popular press as hardworking and high-achieving model minorities. On the other hand, Southeast Asian American youth are also depicted as low-achieving high school dropouts involved in gangs. The realities of academic performance and persistence…

  2. The Coppin Academy for Pre-Nursing Success: a model for the recruitment and retention of minority students.

    Science.gov (United States)

    Gordon, Frances C; Copes, Marcella A

    2010-01-01

    There is a clearly documented need for greater minority representation in professional nursing as the nation grows more diversified. Increasing the ranks of minority nurses will assist both in alleviating the nursing shortage and in addressing the health care disparities that plague our healthcare systems. One barrier has been the recruitment and retention of underserved minority nursing students. To address this, the Coppin State University Helene Fuld School of Nursing (HFSON) in Baltimore, Maryland developed and implemented the "Coppin Academy for Pre-Nursing Success" (CAPS), a comprehensive year-round pre-entry baccalaureate preparation program, targeting high school students from disadvantaged backgrounds who are interested in a nursing career. CAPS graduates have met or exceeded goals in retention, passing rate on the nursing licensure exam, and service to the community. As a result, the program is growing, and the School plans to replicate the CAPS model, not only in surrounding communities, but in other vulnerable and under-served urban settings in the nation.

  3. Predicting minority students' success in medical school.

    Science.gov (United States)

    Sedlacek, W E; Prieto, D O

    1990-03-01

    Despite recent attention to minority student recruitment and retention, data on predicting the success of minority medical students are scarce. Traditional predictors (college grades and scores on the Medical College Admission Test) have modest correlations with medical school grades and scores on the National Board of Medical Examiners examination for minority students. Nonetheless, admission committees also consider nontraditional variables when selecting minority students. Measures of nontraditional variables seem to assess types of intelligence not covered by traditional means. A system of organizing nontraditional or noncognitive variables into eight dimensions is proposed. The dimensions are self-concept, realistic, self-appraisal, understanding and dealing with racism, long-range goals, having a strong support person, showing leadership, having community involvement, and nontraditional knowledge acquired. Further, assessment should place more emphasis on recognizing and defining problems and on performance rather than knowledge. Combining traditional and nontraditional methods is best in selecting minority students, and sufficiently well developed measures exist in each area to make this a practical recommendation for any admission program.

  4. MS PHD'S: A Successful Model Promoting Inclusion, Preparation and Engagement of Underrepresented Minorities within the Geosciences Workforce

    Science.gov (United States)

    Padilla, E.; Scott, O.; Strickland, J. T.; Ricciardi, L.; Guzman, W. I.; Braxton, L.; Williamson, V.; Johnson, A.

    2015-12-01

    According to 2014 findings of the National Research Council, geoscience and related industries indicate an anticipated 48,000 blue-collar, scientific, and managerial positions to be filled by underrepresented minority (URM) workers in the next 15 years. An Information Handling Services (IHS) report prepared for the American Petroleum Institute forecasts even greater numbers estimating upward of 408,000 opportunities for URM workers related to growth in accelerated development of oil, gas and petroleum industries. However, many URM students lack the training in both the hard sciences and craft skills necessary to fill these positions. The Minorities Striving and Pursuing Higher Degrees of Success in Earth System Science (MS PHD'S) Professional Development Program uses integrative and holistic strategies to better prepare URM students for entry into all levels of the geoscience workforce. Through a three-phase program of mentoring, community building, networking and professional development activities, MS PHD'S promotes collaboration, critical thinking, and soft skills development for participants. Program activities expose URM students to education, training and real-life geoscience workforce experiences while maintaining a continuity of supportive mentoring and training networks via an active virtual community. MS PHD'S participants report increased self-confidence and self-efficacy in pursuing geoscience workforce goals. To date, the program supports 223 participants of who 57, 21 and 16 have received Doctorate, Masters and Baccalaureate degrees respectively and are currently employed within the geoscience and related industries workforce. The remaining 129 participants are enrolled in undergraduate and graduate programs throughout the U.S. Geographic representation of participants includes 35 states, the District of Columbia, Puerto Rico and two international postdoctoral appointments - one in Saudi Arabia and the other in France.

  5. Successful Minority Pedagogy in Mathematics: US and Japanese Case Studies

    Science.gov (United States)

    Ahn, Ruth; Catbagan, Paula; Tamayo, Kristin; I, Ji Yeong; Lopez, Mario; Walker, Pamela

    2015-01-01

    This study examines best practices in teaching mathematics to minority students through two case studies conducted at high-minority junior high schools in the USA and Japan. Observations, interviews, and conversations with the teachers in both countries focused on the research question: how do teachers successfully teach mathematics to minority…

  6. The Impact of Entrepreneurship Education on Succession in Ethnic Minority Family Firms

    Science.gov (United States)

    Hussain, Javed G.; Scott, Jonathan M.; Matlay, Harry

    2010-01-01

    Purpose: The purpose of this paper is to explore the impact that entrepreneurship education can have on succession in ethnic minority family firms that operate in the highly competitive UK economy. Design/methodology/approach: The paper employs a complex conceptual model of ethnic minority graduates' economic activities and outlines the possible…

  7. A successful intervention program for high ability minority students

    Science.gov (United States)

    Coleman, Winson R.

    1989-01-01

    Among professional occupations in the United States, non-Asian minorities are least represented in science and engineering fields. The Bureau of Labor Statistics predicts that over the next decade, civilian employment of scientists and engineers has the potential to grow by 40 percent. Furthermore, projections for the year 2000 indicate that 100,000 fewer B.S. and B.A. degrees will be awarded than were awarded in 1984. The latter projection takes into consideration the overall declining proportion of all 18 year old college students. Within this shrinking pool of 18 year old potential college students will be an increasing proportion of Blacks and Hispanics. In order to change the educational patterns for minority youth, an intense look at the factors that affect the science and mathematics performance of minorities. Furthermore, the work of programs that are successful at producing minority scientists and engineers must be examined and documented with the intent of replicating these programs. The fundamental concern at this time appears to be the quality of precollege experience because research has shown that lack of precollege preparation is the single most important cause of underrepresentation of minorities in science and engineering careers. For many years, intervention programs have attempted to improve the quality of the minority precollege experience by latter year intervention in grades eleven and twelve. Later efforts, such as this one, have concentrated on earlier years. The effectiveness of intervention programs is widely accepted but not rigorously documented. The mechanisms these programs have developed need to be identified and their potential for broader use evaluated. The ultimate goal of such studies would be to provide the different educational communities with a set of proven cost-effective state of the art mechanisms designed to increase participation and success of minority students in science and mathematics-related courses. One such

  8. Minority nursing student success: A grounded theory case study

    Science.gov (United States)

    Mister, Brenda J.

    theory proposes that when the minority nursing student bridges his or her personal attributes of self-efficacy with some or all identified support systems, this may be a conduit to fostering success in obtaining their educational goals as long as the resources are available, and a caring environment is present.

  9. Visual and Computational Modelling of Minority Games

    Directory of Open Access Journals (Sweden)

    Robertas Damaševičius

    2017-02-01

    Full Text Available The paper analyses the Minority Game and focuses on analysis and computational modelling of several variants (variable payoff, coalition-based and ternary voting of Minority Game using UAREI (User-Action-Rule-Entities-Interface model. UAREI is a model for formal specification of software gamification, and the UAREI visual modelling language is a language used for graphical representation of game mechanics. The URAEI model also provides the embedded executable modelling framework to evaluate how the rules of the game will work for the players in practice. We demonstrate flexibility of UAREI model for modelling different variants of Minority Game rules for game design.

  10. Visual and Computational Modelling of Minority Games

    OpenAIRE

    Robertas Damaševičius; Darius Ašeriškis

    2017-01-01

    The paper analyses the Minority Game and focuses on analysis and computational modelling of several variants (variable payoff, coalition-based and ternary voting) of Minority Game using UAREI (User-Action-Rule-Entities-Interface) model. UAREI is a model for formal specification of software gamification, and the UAREI visual modelling language is a language used for graphical representation of game mechanics. The URAEI model also provides the embedded executable modelling framework to evaluate...

  11. Preparing minority undergraduate students for successful science careers.

    Science.gov (United States)

    Akundi, Murty

    2008-03-01

    Xavier University of Louisiana is well known for being number one in graduating the most minority students in physical and biological sciences. The reason for this success is built on the concept of Standards with Sympathy in the Sciences (Triple S). This is an outgrowth of over twenty years of planning and development by the Xavier science faculty to devise a program for preparing and retaining students in the sciences and engineering. Xavier has been successfully conducting for over ten years, Summer Science Academy (SSA) for middle and high school students; Science Technology, Engineering and Mathematics (STEM) Scholars and Howard Hughes Biomedical programs for in-coming freshmen. Recently, through a grant from NSF, we have developed the Experiential Problem-solving and Analytical Reasoning (EPsAR) summer bridge program for in-coming freshmen who were given conditional admission to the university (i.e., those students who scored below the acceptable range for placement into degree mathematics courses). In this program, EPsAR participants will be engaged in problem-solving and critical thinking activities for eight hours per day, five days per week, for six weeks. Additionally, an interdisciplinary approach is taken to convey the mathematical skills learned to relate to physics, chemistry, biology, and computer science. Sixty-six students have participated in the last two years in the EPsAR program. During the first year 23 of 28 students successfully bi-passed the algebra review course and were placed into a degree credit course in mathematics. In the second year, thirty-one (31) of the 38 were advanced to a higher-level mathematics course. Twenty-three (23) out of 38 went on to degree credit math course. To retain students in the sciences peer tutoring in all the science disciplines are made available to students throughout the day for 5 days per week. Faculty and students are available to give guidance to the needed students. The University has established a

  12. Promoting the successful development of sexual and gender minority youths.

    Science.gov (United States)

    Mayer, Kenneth H; Garofalo, Robert; Makadon, Harvey J

    2014-06-01

    Because of societal discomfort with atypical expressions of sexual orientation and gender identity, lesbian, gay, bisexual and transgender (LGBT) youths have experienced enhanced developmental challenges compared with their heterosexual peers. A recent special issue of the American Journal of Public Health delineated how social stigma affecting LGBT youths has resulted in a wide range of health disparities, ranging from increased prevalence of depression and substance use to downstream effects, such as an increased risk for cancer and cardiovascular disease when older. We review the clinical significance of these findings for health care professionals, who need to become informed about these associations to provide better care for their sexual and gender minority youth patients, and to be able to educate their parents and other caregivers.

  13. Promoting Minority Success in the Sciences: The Minority Opportunities in Research Programs at CSULA

    Science.gov (United States)

    Slovacek, Simeon; Whittinghill, Jonathan; Flenoury, Laura; Wiseman, David

    2012-01-01

    Given the large continued investment by the federal government in programs that promote academic success and the pursuit of advanced degrees in the sciences among members groups traditionally underrepresented in the sciences, there is a strong need for research which provides rigorous investigations of these programs and their impact on the target…

  14. Predicting the success of minority students in a baccalaureate nursing program.

    Science.gov (United States)

    Boyle, K K

    1986-05-01

    Entering grade point average (ENTGPA), American College Test Assessment (ACT), high school rank (HSRANK), high school GPA (HSGPA), number of college credit hours prior to program admission (HRSPTA), age at admission, and an index of applicant motivation and related experience (MEP) were investigated to determine the best predictive combination of variables for success among minorities in a baccalaureate nursing program. Final GPA, program completion, and State Board Examination (SBTPE) performance were used as indicators of success. Minority students (N = 145) admitted between 1971-1981 were identified by record review. Two minority subgroups, blacks (n = 111) and nonblack minorities (n = 34) were compared using multiple regression and discriminant analysis procedures. ACT was the strongest, most consistent predictor of SBTPE performance and final GPA for all minorities. ENTGPA and ACT provided substantial predictive power for both subgroups, but explained markedly less variance for blacks. HSGPA, HRSPTA, and HSRANK explained some variance differently by subgroup. ENTGPA provided the only discrimination between graduates and dropouts. Cognitive attributes are critical to academic success among minorities, although predictors may vary in explanatory power by minority group. Variables interfering with program completion need to be explored.

  15. Factors Influencing the Educational Success of Minority Pre-Service Educators

    Science.gov (United States)

    Clark, Mary Ann; Brooks, Michael; Lee, Sang Min; Daley, Lauren Pasquarella; Crawford, Yashica; Maxis, Sophie

    2007-01-01

    A mixed methods study surveying minority pre-service educators to examine the factors deemed to be important in their educational success was conducted. Forty-three scholarship studies in a College of Education provided quantitative and qualitative data on their perceptions of factors that contributed to their journey to success in college and/or…

  16. Models of Success

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ Wu Renbao made national celebrity for his commitment to achieving common prosperity among his co-villagers in Huaxi Village, Jiangsu Province.Wu's recipe for success was to take advantage of collective strength by encouraging mutual assistance between villages and households.

  17. Conducting HIV research in racial and ethnic minority communities: building a successful interdisciplinary research team.

    Science.gov (United States)

    Polanco, Frinny R; Dominguez, Dinora C; Grady, Christine; Stoll, Pamela; Ramos, Catalina; Mican, Joann M; Miranda-Acevedo, Robert; Morgan, Marcela; Aizvera, Jeasmine; Purdie, Lori; Koziol, Deloris; Rivera-Goba, Migdalia V

    2011-01-01

    HIV infection occurs in disproportionately high rates among racial and ethnic minorities in the United States, making it imperative that individuals from these groups be included in research studies. However, it is often difficult to recruit HIV-infected Hispanics and African Americans in clinical trials, but a skilled interdisciplinary team that includes researchers with racial and ethnic diversity can help. This article describes a successful approach for building an interdisciplinary team that values the participation of racial and ethnic minorities in clinical trials and has the skills to work with these groups. The success of the Adelante (a Spanish word meaning forward) Team can be attributed to team members who actively participate in decision-making, are empowered, and function in a cohesive manner. Successful research teams build relationships with research participants to increase the probability that racial and ethnic minorities will enroll and participate fully in research. Published by Elsevier Inc.

  18. Affirming At-Risk Minorities for Success (ARMS): retention, graduation, and success on the NCLEX-RN.

    Science.gov (United States)

    Sutherland, Judith A; Hamilton, Mary Jane; Goodman, Nancy

    2007-08-01

    Increasing ethnic and racial diversity in the U.S. population combined with inadequate minority representation in the nursing profession requires innovative strategies to recruit, retain, and graduate nurses from diverse ethnic and racial populations. Affirming At-Risk Minorities for Success (ARMS) was funded by a U.S. Department of Health and Human Services Basic Nurse Education and Practice Program grant. Participants (N = 64) were enrolled in a baccalaureate degree nursing program that has been predominantly White/ Anglo and is located in the south-central region of the United States. Research objectives were to increase program retention, graduation rates, and success on the National Council Licensure Examination for Registered Nurses (NCLEX-RN) for minority or educationally disadvantaged students through programmatic interventions, including mentoring and advising, tutoring, and educational seminars. The comparison group was non-ARMS students derived from a comprehensive database (N = 265). Results indicated that interventions positively affected graduation rates (measure of retention = 98%), significantly affected grades in the Leadership-Management capstone course, and eliminated the effects of ethnicity on NCLEX-RN success.

  19. Examining Career Success of Minority and Women Emergency Medical Technicians (EMTs): A LEADS Project

    Science.gov (United States)

    Russ-Eft, Darlene F.; Dickison, Philip D.; Levine, Roger

    2008-01-01

    Emergency medical technicians (EMTs) are a critical segment in prehospital medical care. This study examined EMT-paramedic career success focused on minorities and women, as part of the Longitudinal Emergency Medical Technician Attributes and Demographics Study (LEADS). The LEADS data come from a representative sampling of EMTs throughout the…

  20. Preadmissions programs and enrollment of underrepresented minority students before and during successful challenges to affirmative action.

    Science.gov (United States)

    Strayhorn, G

    1999-06-01

    The association between the percent change in first-year and total underrepresented minority student enrollment and the presence of preadmission programs at Liaison Committee on Medical Education (LCME) accredited medical schools was assessed before and during successful legal and legislative challenges to affirmative action. The percent change in under-represented minority student enrollment was determined by comparing enrollment data for the academic years 1993-94 and 1996-97. Schools were categorized as having either a negative or positive percent change in their enrollment of underrepresented minority students. Logistic regression was used to determine the association of the percent change in under-represented minority student enrollment and the presence of a preadmission program while controlling for schools' financial support and the presence of postbaccalaureate programs. Fifty-six percent of the included medical schools had preadmission programs. Schools with a positive percent change were significantly more likely to have preadmission programs compared with schools with a negative percent change. There was no association between the presence of preadmission programs and the percent change in total enrollment. These results indicate that the presence of preadmission programs is positively associated with increases in first-year underrepresented minority student enrollment during the successful challenges to affirmative actions.

  1. Minority Student Recruitment: A Connecticut Model.

    Science.gov (United States)

    Williams, Ronald A.; Cox, Mary Anne

    1991-01-01

    Describes initiatives developed in Connecticut to increase minority participation in higher education, including the Minority Enrollment Incentive Program, Urban Marketing Initiative, Greater Hartford Community College's Hispanic Family Support and Pre-Nursing programs, Norwalk Community College's English as a Second Language program, high school…

  2. Being Smart is not Enough: the role of psychlogical factors in study success of ethnic minority and ethnic majority students

    NARCIS (Netherlands)

    M. Meeuwisse (Marieke)

    2012-01-01

    textabstractIn the past decade(s), many studies have been conducted on the differences in study success between ethnic minority students and ethnic majority students to identify explanations for the less successful academic careers of ethnic minority students. This dissertation aimed to explain the

  3. Countermeasure Research on Problems Impeding Farmers’ Successful Entrepreneurship in Minority Areas

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    By investigating the problem of farmers’ entrepreneurship in Gongcheng Yaozu Autonomous County,lying in Guilin,Guangxi,the thesis expounds the existing problems impacting farmers’ successful entrepreneurship in minority areas as follows:firstly,the musty idea of local cadre is obstacle to farmers’ successful entrepreneurship;secondly,the problems of scattered farmers’ entrepreneurship resources,waste and shortage of resources impact good effect of entrepreneurship;thirdly,farmers lack awareness of characteristics and brand,influencing the market competitiveness of products;fourthly,the existence of smallholder consciousness critically hampers the marketization and internationalization of entrepreneurship accomplishments;fifthly,the government pays no attention to the construction of industrial chain,which makes farmers’ entrepreneurship lack sustainability.Based on these,corresponding countermeasures are put forward to promote farmers’ successful entrepreneurship in minority areas as follows:firstly,we should update local leaders’ ideas and emphasize the positive role of farmers’ successful entrepreneurship in county economic development;secondly,we should integrate local entrepreneurship resources and promote the efficiency of farmers’ entrepreneurship;thirdly,we should foster the consciousness of brand and characteristics and strengthen the market competitiveness of entrepreneurship accomplishments;fourthly,we should strengthen the construction of industrial chain to promote sustainable development of farmers’ entrepreneurship.

  4. Successful Succession in Family Businesses : Individual Level Factors and Succession Planning Models.

    OpenAIRE

    Aleem, Majid; Islam, Md. Shariful

    2009-01-01

    Individual level factors related to the successor have a central role to play in the succession process of the business. When these factors are viewed in relation to succession planning models, these factors have a direct relation to the succession models in terms of success or failure of the succession process. The major contributing factor to the success or failure of the succession process is that of the leadership provided to the organization by the predecessor. These leadership qualities...

  5. Successful strategies for building thriving undergraduate physics programs at minority serving institutions

    Science.gov (United States)

    Williams, Quinton

    2013-03-01

    After having been pulled back from the brink of academic program deletion, Jackson State University (Jackson, Mississippi) is now the only HBCU (Historically Black College and University) listed as a top producer of B.S. degrees earned by African Americans in both fields of physics and geoscience. Very pragmatic, strategic actions were taken to enhance the undergraduate degree program which resulted in it becoming one of the most productive academic units at the university. Successful strategies will be shared for growing the enrollment of physics majors, building productive research/educational programs, and improving the academic performance of underprepared students. Despite myriad challenges faced by programs at minority serving institutions in a highly competitive 21st century higher education system, it is still possible for undergraduate physics programs to transition from surviving to thriving.

  6. A Model Minority? The Misrepresentation and Underrepresentation of Asian Pacific Americans in Introductory American Government Textbooks

    Science.gov (United States)

    Takeda, Okiyoshi

    2016-01-01

    Asian Pacific Americans are a racial group that is often viewed in stereotypes, most notably, as a "model minority"--a view that this group is naturally hardworking and successful unlike "other" racial and ethnic groups. Quite often, they are also neglected as U.S. citizens, whose presence and influence in American politics are…

  7. Explaining the suicide risk of sexual minority individuals by contrasting the minority stress model with suicide models.

    Science.gov (United States)

    Plöderl, Martin; Sellmeier, Maximilian; Fartacek, Clemens; Pichler, Eva-Maria; Fartacek, Reinhold; Kralovec, Karl

    2014-11-01

    Many studies have found elevated levels of suicide ideation and attempts among sexual minority (homosexual and bisexual) individuals as compared to heterosexual individuals. The suicide risk difference has mainly been explained by minority stress models (MSTM), but the application of established suicidological models and testing their interrelations with the MSTM has been lacking so far. Therefore, we have contrasted two established models explaining suicide risk, the Interpersonal Psychological Theory (IPT) (Joiner, 2005) and the Clinical Model (CM) (Mann et al., 1999), with the MSTM (Meyer, 2003) in a Bavarian online-sample of 255 adult sexual minority participants and 183 heterosexual participants. The results suggested that the CM and the IPT model can well explain suicide ideation among sexual minorities according to the factors depression, hopelessness, perceived burdensomeness, and failed belongingness. The CM and the IPT were intertwined with the MSTM via internalized homophobia, social support, and early age of coming out. Early coming out was associated with an increased suicide attempt risk, perhaps through violent experiences that enhanced the capability for suicide; however, coming out likely changed to a protective factor for suicide ideation by enhanced social support and reduced internalized homophobia. These results give more insight into the development of suicide risk among sexual minority individuals and may be helpful to tailor minority-specific suicide prevention strategies.

  8. Experiences of Success by Minority Students Attending a Predominantly Caucasian Nursing Program

    Science.gov (United States)

    Boruff, Staci M.

    2012-01-01

    Nursing educators have struggled for many years with the problem of student attrition in the minority population. Because there are so few minority students who choose nursing as a profession, educators strive to retain these students to graduation. Unfortunately, attrition rates of minority students continue to rise despite years of research into…

  9. Characterization and Computational Modeling of Minor Phases in Alloy LSHR

    Science.gov (United States)

    Jou, Herng-Jeng; Olson, Gregory; Gabb, Timothy; Garg, Anita; Miller, Derek

    2012-01-01

    The minor phases of powder metallurgy disk superalloy LSHR were studied. Samples were consistently heat treated at three different temperatures for long times to approach equilibrium. Additional heat treatments were also performed for shorter times, to assess minor phase kinetics in non-equilibrium conditions. Minor phases including MC carbides, M23C6 carbides, M3B2 borides, and sigma were identified. Their average sizes and total area fractions were determined. CALPHAD thermodynamics databases and PrecipiCalc(TradeMark), a computational precipitation modeling tool, were employed with Ni-base thermodynamics and diffusion databases to model and simulate the phase microstructural evolution observed in the experiments with an objective to identify the model limitations and the directions of model enhancement.

  10. MS PHD'S: Bridging the Gap of Academic and Career Success Through Educational and Professional Development for Minorities

    Science.gov (United States)

    Brown, D.; Vargas, W.; Padilla, E.; Strickland, J.; Echols, E.; Johnson, A.; Williamson Whitney, V.; Ithier-Guzman, W.; Ricciardi, L.; Johnson, A.; Braxton, L.

    2011-12-01

    Historically, there has been a lack of ethnic and gender diversity in the geo-sciences. The Minorities Striving and Pursuing Higher Degrees of Success in Earth System Science (MS PHD'S) Professional Development Program provides a bridge to young scientists of diverse backgrounds who in turn will impact many. In a process of 3 phases, the program introduces the students to the scientific community through participation in professional and society meetings and networking with scientists and personnel within federal agencies, academic institutions and STEM-based industries. The program builds confidence, offers role models for professional development and provides students support during their education. Upon completion, students achieve a high level of self-actualization and self-esteem combined with individual growth. They become part of a community that continuously provides support and security to each other. This support is tangible through the mentor/mentee relationships which will help with individual growth throughout the mentoring cycle. Having role models and familiar faces to whom mentees can relate to will encourage our students to succeed in the STEM's field. To date, 159 students have participated in the program: 26 have successfully completed their PhD and 56 are currently enrolled in the PhD programs nationwide. The MS PHD'S Program creates a forum of diverse peoples by diverse peoples with diverse interest and strength, where the ongoing goal is to continually raise the bar for each individual. MS PHD'S establishes a nurturing goal-oriented environment for the geo scientist of the future who in turn will make profound contributions on a local, national and global scale. To conclude, MSPHD'S not only bridges the gap of unrepresented minorities in STEM careers, but also generates educational approaches to make the earth system sciences available to more, impacting all.

  11. Facilitators and barriers to success among ethnic minority students enrolled in a predominately white baccalaureate nursing program.

    Science.gov (United States)

    Smith, Charlene B; Williams-Jones, Pamela; Lewis-Trabeaux, Shirleen; Mitchell, Denise

    2012-07-01

    This study identified facilitators and barriers to academic success among ethnic minority students enrolled in a BSN program. The following research questions were asked: What factors (a) facilitate academic performance; (b) are barriers to academic performance; (c) influence the college experience and academic success; (d) within the nursing department, influence academic success; (e) What is the impact of socialization on academic performance; (f) What were facilitators of academic success identified among study participants; and, (g) Which facilitators, identified by subjects, were most common among those participants? A retrospective-descriptive study design consisted of a sample of all minority students who were enrolled in clinical at a baccalaureate nursing program between 2005 and the fall of 2010. Bandura's theory on self-efficacy was used. Loftus and Duty's Survey of Factors Influencing Student Retention and Academic Success was adapted. Data were analyzed using SPSS 19.0 with ANOVA to determine if a significant difference in responses existed.

  12. Mexicans as Model Minorities in the New Latino Diaspora

    Science.gov (United States)

    Wortham, Stanton; Mortimer, Katherine; Allard, Elaine

    2009-01-01

    Rapid Mexican immigration has challenged host communities to make sense of immigrants' place in New Latino Diaspora towns. We describe one town in which residents often characterize Mexican immigrants as model minorities with respect to work and civic life but not with respect to education. We trace how this stereotype is deployed, accepted, and…

  13. Critical Components of a Successful Undergraduate Research Experience in the Geosciences for Minority Students

    Science.gov (United States)

    Liou-Mark, J.; Blake, R.; Chukuigwe, C.

    2013-12-01

    For the past five years, the New York City College of Technology has administered a successful National Science Foundation (NSF) Research Experience for Undergraduates (REU) program. The program provides rich, substantive, academic and life-transformative STEM educational experiences for students who would otherwise not pursue STEM education altogether or would not pursue STEM education through to the graduate school level. The REU Scholars are provided with an opportunity to conduct intensive satellite and ground-based remote sensing research at the National Oceanic and Atmospheric Administration Cooperative Remote Sensing Science and Technology Center (NOAA-CREST). Candidates for the program are recruited from the City University of New York's twenty-three separate campuses. These students engage in a research experience that spans the summer and the fall and spring semesters. Eighty-four percent (84%) of the program participants are underrepresented minorities in STEM, and they are involved in a plethora of undergraduate research best practice activities that include: training courses in MATLAB programming, Geographic Information Systems, and Remote Sensing; workshops in Research Ethics, Scientific Writing, and Oral and Poster Research Presentations; national, regional, and local conference presentations; graduate school support; and geoscience exposure events at national laboratories, agencies, and research facilities. To enhance their success in the program, the REU Scholars are also provided with a comprehensive series of safety nets that include a multi-tiered mentoring design specifically to address critical issues faced by this diverse population. Since the inception of the REU program in 2008, a total of 61 undergraduate students have finished or are continuing with their research or are pursuing their STEM endeavors. All the REU Scholars conducted individual satellite and ground-based remote sensing research projects that ranged from the study of

  14. Minor magnetization loops in two-dimensional dipolar Ising model

    Energy Technology Data Exchange (ETDEWEB)

    Sarjala, M. [Aalto University, Department of Applied Physics, P.O. Box 14100, FI-00076 Aalto (Finland); Seppaelae, E.T., E-mail: eira.seppala@nokia.co [Nokia Research Center, Itaemerenkatu 11-13, FI-00180 Helsinki (Finland); Alava, M.J., E-mail: mikko.alava@tkk.f [Aalto University, Department of Applied Physics, P.O. Box 14100, FI-00076 Aalto (Finland)

    2011-05-15

    The two-dimensional dipolar Ising model is investigated for the relaxation and dynamics of minor magnetization loops. Monte Carlo simulations show that in a stripe phase an exponential decrease can be found for the magnetization maxima of the loops, M{approx}exp(-{alpha}N{sub l}) where N{sub l} is the number of loops. We discuss the limits of this behavior and its relation to the equilibrium phase diagram of the model.

  15. Academic Achievement and Behavioral Health among Asian American and African American Adolescents: Testing the Model Minority and Inferior Minority Assumptions

    Science.gov (United States)

    Whaley, Arthur L.; Noel, La Tonya

    2013-01-01

    The present study tested the model minority and inferior minority assumptions by examining the relationship between academic performance and measures of behavioral health in a subsample of 3,008 (22%) participants in a nationally representative, multicultural sample of 13,601 students in the 2001 Youth Risk Behavioral Survey, comparing Asian…

  16. A Religious Experience? Personal, Parental, and Peer Religiosity and the Academic Success of Sexual-Minority Youth Using Nationally Representative Samples

    Science.gov (United States)

    Gottfried, Michael A.; Polikoff, Morgan S.

    2012-01-01

    Using nationally representative transcript data, this study is the first to include a discussion of religiosity in the context of sexual-minority students' academic achievement. This study examines the issue in three capacities: first, by comparing school success of sexual-minority youth to a non-sexual-minority reference group; second, by…

  17. Programs to Enhance Participation, Retention, and Success of Minority Students at Florida Community Colleges and Universities.

    Science.gov (United States)

    Bender, Louis W.; Blanco, Cheryl D.

    This five-part report describes the methods and findings of a study of programs implemented at Florida's 9 public universities and 28 community colleges to enhance the participation of minority and disadvantaged students in postsecondary education. Following introductory material on the project, study design, and methods, an inventory of…

  18. A Success Story: Recruiting & Retaining Underrepresented Minority Doctoral Students in Biomedical Engineering

    Science.gov (United States)

    Reichert, William M.

    2006-01-01

    There are various ways to succeed in recruiting and retaining underrepresented minority (URM) doctoral students; but key to them all is the creation of real student-faculty relationships, which demonstrate by example that diversity and excellence can and should coexist. This cannot be delegated or done indirectly, and no amount of outreach, campus…

  19. Identity-Related Influences on the Success of Minority Workers in Primarily Nonminority Organizations.

    Science.gov (United States)

    James, Keith; Khoo, Gillian

    1991-01-01

    Reviews literature at the micro- (individual, interpersonal, and small group) and macro- (organizational, societal, and cultural) levels relating to the experiences and outcomes of minorities in work settings populated primarily by members of the majority. Uses Tajfel and Turner's Social Identity Theory as an organizational and integrative…

  20. Barriers That Hinder the Successful Transition of Minority Youth into the Workplace.

    Science.gov (United States)

    Wentling, Rose Mary; Waight, Consuelo Luisa

    1999-01-01

    Interviews with 21 school-to-work partnership directors identified school, workplace, societal, and individual barriers encountered by minority youth. Significant barriers included poverty, school personnel's resistance to change, lack of cultural understanding, lack of integrated and relevant curriculum, and school-business communication. (SK)

  1. Who Is Your Successful Aging Role Model?

    Science.gov (United States)

    Jopp, Daniela S; Jung, Seojung; Damarin, Amanda K; Mirpuri, Sheena; Spini, Dario

    2017-03-01

    Having a role model of successful aging may contribute to views on aging. This article investigated the nature and correlates of young, middle-aged, and older adults' successful aging role models. One hundred and fifty-one individuals aged 18-99 were asked whether they had a role model of successful aging and if so, the reasons for their choice. Open-ended answers were coded for recurring themes. Views on aging and attitudes toward own aging were assessed with questionnaires. Eighty-five percent of participants indicated at least one role model. Most mentioned role models from their family, including parents and grandparents. Role models were gender matched. Most frequent reasons for model choices were health, activities, and social resources. Participants with family role models had less negative views on aging. Mediation analyses confirmed that family role models were associated with more reasons for role model choice, which in turn was associated with less negative views on aging. Furthermore, the effect of reasons on attitudes toward own aging was mediated by negative views on aging. Young, middle-aged, and older adults have role models for successful aging. Links between role model features and views on aging suggest that role models may be useful in promoting successful aging.

  2. Aging Successfully: A Four-Factor Model

    Science.gov (United States)

    Lee, Pai-Lin; Lan, William; Yen, Tung-Wen

    2011-01-01

    The study was designed to validate a model for a successful aging process and examine the gender differences in the aging process. Three hundred twelve participants who were 65 or older completed a Taiwan Social Change Survey that measures four factors that define successful aging process: including physical, psychological, social support, and…

  3. Aging Successfully: A Four-Factor Model

    Science.gov (United States)

    Lee, Pai-Lin; Lan, William; Yen, Tung-Wen

    2011-01-01

    The study was designed to validate a model for a successful aging process and examine the gender differences in the aging process. Three hundred twelve participants who were 65 or older completed a Taiwan Social Change Survey that measures four factors that define successful aging process: including physical, psychological, social support, and…

  4. Testing a model of minority identity achievement, identity affirmation, and psychological well-being among ethnic minority and sexual minority individuals.

    Science.gov (United States)

    Ghavami, Negin; Fingerhut, Adam; Peplau, Letitia A; Grant, Sheila K; Wittig, Michele A

    2011-01-01

    How is social identity related to psychological well-being among minority individuals? Drawing on developmental models of identity formation (e.g., Erikson, 1968) and on Social Identity Theory (Tajfel & Turner, 1979), we tested a conceptual model examining links between two key aspects of social identity and psychological well-being. We proposed that the association between identity achievement (exploring and understanding the meaning of one's identity) and psychological well-being is mediated by identity affirmation (developing positive feelings and a sense of belonging to one's social group). Across three studies, including ethnic minority high school students (Study 1), ethnic minority college students (Study 2) and lesbian and gay male adults (Study 3), we found strong support for the model. Results suggest that the process of exploring and understanding one's minority identity can serve as an important basis for developing positive feelings toward and an enhanced sense of attachment to the group, which can in turn confer psychological benefits for minority individuals. Implications and directions for future research are discussed.

  5. A Minority Stress Model for Suicidal Ideation in Gay Men.

    Science.gov (United States)

    Michaels, Matthew S; Parent, Mike C; Torrey, Carrie L

    2016-02-01

    There is a dearth of research on mechanisms underlying higher rates of suicidal ideation among gay men compared to heterosexual men. The purpose of this study was to establish the link between social/psychological predictor variables and suicidal ideation by testing a hypothesized minority stress model. Structural equation modeling was used to assess the relationships posited in the model using data from a community sample of 167 gay men. Model fit was adequate and hypothesized relationships were partially supported. Also, depressive symptoms partially mediated the relationship between (less) outness predicting suicidal ideation. These findings imply that therapeutic approaches targeting the coming out process may be more effective than approaches targeting internalized homophobia when suicidal ideation is indicated in the clinical presentation of gay and bisexual men.

  6. MODEL OF TRAINING OF SUCCESS IN LIFE

    Directory of Open Access Journals (Sweden)

    Екатерина Александровна Лежнева

    2014-04-01

    Full Text Available The article explains the importance of the development of motive to succeed in adolescence. It is determined the value of the motive to achieve success in the further development of the teenager: a motive to achieve effective internal forces mobilized for the implementation of successful operation ensures the active involvement of teenagers in social and interpersonal relationships. As the primary means of motive development success is considered training. The author provides a definition of "training for success in life," creates a model of training for success in life, and describes its units (targeted, informative, technological, productive, reveals the successful development of the technology life strategy used during the training (self-presentation, targets, incentives, subject-orientation. The author pays attention to the need for a future psychologist to develop teenagers’ motive to achieve success through the mastery of competence in constructing a model of training for success in life, and its implementation in the course of professional activities. The main means of training students of psychology to the use of training success in life identified the additional educational programs and psychological section.DOI: http://dx.doi.org/10.12731/2218-7405-2013-9-77

  7. Nonlinear model accounting for minor hysteresis of embedded SMA actuators

    Institute of Scientific and Technical Information of China (English)

    YANG Kai; GU Chenglin

    2007-01-01

    A quantitative index martensite fraction was used to describe the phase transformation degree of shape memory alloy (SMA).On the basis of the martensite fraction,a nonlinear analysis model for major and minor hysteresis loops was developed.The model adopted two exponential equations to calculate the martensite fractions for cooling and heating,respectively.The martensite fractions were derived as the relative parameters were adjusted timely according to continuous,common initial and common limit constraints.By use of the linear relationship between the curvature of embedded SMA actuator and SMA's martensite fraction,the curvature was determined.The results of the simulations and experiments prove the validity and veracity of the model.

  8. Minor hysteresis loops model based on exponential parameters scaling of the modified Jiles-Atherton model

    Energy Technology Data Exchange (ETDEWEB)

    Hamimid, M., E-mail: Hamimid_mourad@hotmail.com [Laboratoire de modelisation des systemes energetiques LMSE, Universite de Biskra, BP 145, 07000 Biskra (Algeria); Mimoune, S.M., E-mail: s.m.mimoune@mselab.org [Laboratoire de modelisation des systemes energetiques LMSE, Universite de Biskra, BP 145, 07000 Biskra (Algeria); Feliachi, M., E-mail: mouloud.feliachi@univ-nantes.fr [IREENA-IUT, CRTT, 37 Boulevard de l' Universite, BP 406, 44602 Saint Nazaire Cedex (France)

    2012-07-01

    In this present work, the minor hysteresis loops model based on parameters scaling of the modified Jiles-Atherton model is evaluated by using judicious expressions. These expressions give the minor hysteresis loops parameters as a function of the major hysteresis loop ones. They have exponential form and are obtained by parameters identification using the stochastic optimization method 'simulated annealing'. The main parameters influencing the data fitting are three parameters, the pinning parameter k, the mean filed parameter {alpha} and the parameter which characterizes the shape of anhysteretic magnetization curve a. To validate this model, calculated minor hysteresis loops are compared with measured ones and good agreements are obtained.

  9. Improving Indigenous and Ethnic Minority Student Success in Foundation Health Study

    Science.gov (United States)

    Curtis, Elana; Townsend, Sonia; Airini

    2012-01-01

    This study investigates what teaching practices in the "non-lecture context of a foundation programme" help or hinder Maori and Pasifika students' success in a New Zealand university. This two-year qualitative project used Kaupapa Maori and Pasifika Research (KM/PR) methodologies conducted in three phases: (1) needs analysis, (2)…

  10. Mentoring ethnic minority counseling and clinical psychology students: A multicultural, ecological, and relational model.

    Science.gov (United States)

    Chan, Anne W; Yeh, Christine J; Krumboltz, John D

    2015-10-01

    The aim of the current study was to understand the role of race and culture in successful mentoring relationships in graduate school. We examined the practices of 9 faculty mentors working with 15 ethnic minority doctoral students in counseling and clinical psychology. Grounded theory was used to discern unifying patterns and to formulate a theory of multicultural mentoring. Five overall themes significant to multicultural mentoring emerged: (a) career support and guidance tailored for ethnic minorities, (b) relationality between mentors and protégés, (c) significance of contexts, (d) interconnections across contexts, and (e) multidirectionality of interactions between contexts. The 5 themes combined to form a multicultural, ecological, and relational model of mentoring. Our findings suggest that mentoring ethnic minority students can be successful, productive, and satisfying for both mentors and protégés when mentors possess the necessary skills, time, commitment, and multicultural competencies. Implications for doctoral programs in counseling and clinical psychology are discussed, along with recommendations for future research directions.

  11. The Impact of Cooperative, Competitive, and Individualistic Experiences on Minority Individuals’ Educational and Career Success.

    Science.gov (United States)

    1984-05-16

    attribute failure to task difficulty and bad luck (Bird, Foster, & Maruyama, 1980; Bukowski & Moore, 1980; Iso-Ahola, 1977a, 1977b; Roberts, 1975...April. Bukowski , W., & Moore, D. (1980). Winners’ and losers’ attributions for success and failure in a series of athletic events. Journal of Sport...Social Organization of Schools The Johns Hopkins University 3505 North Charles Street Baltimore, MD 21218 Dr. John Campbell Department of

  12. Successful and unsuccessful psychopaths: a neurobiological model.

    Science.gov (United States)

    Gao, Yu; Raine, Adrian

    2010-01-01

    Despite increasing interest in psychopathy research, surprisingly little is known about the etiology of non-incarcerated, successful psychopaths. This review provides an analysis of current knowledge on the similarities and differences between successful and unsuccessful psychopaths derived from five population sources: community samples, individuals from employment agencies, college students, industrial psychopaths, and serial killers. An initial neurobiological model of successful and unsuccessful psychopathy is outlined. It is hypothesized that successful psychopaths have intact or enhanced neurobiological functioning that underlies their normal or even superior cognitive functioning, which in turn helps them to achieve their goals using more covert and nonviolent methods. In contrast, in unsuccessful, caught psychopaths, brain structural and functional impairments together with autonomic nervous system dysfunction are hypothesized to underlie cognitive and emotional deficits and more overt violent offending.

  13. Improving Localization Accuracy: Successive Measurements Error Modeling

    Directory of Open Access Journals (Sweden)

    Najah Abu Ali

    2015-07-01

    Full Text Available Vehicle self-localization is an essential requirement for many of the safety applications envisioned for vehicular networks. The mathematical models used in current vehicular localization schemes focus on modeling the localization error itself, and overlook the potential correlation between successive localization measurement errors. In this paper, we first investigate the existence of correlation between successive positioning measurements, and then incorporate this correlation into the modeling positioning error. We use the Yule Walker equations to determine the degree of correlation between a vehicle’s future position and its past positions, and then propose a -order Gauss–Markov model to predict the future position of a vehicle from its past  positions. We investigate the existence of correlation for two datasets representing the mobility traces of two vehicles over a period of time. We prove the existence of correlation between successive measurements in the two datasets, and show that the time correlation between measurements can have a value up to four minutes. Through simulations, we validate the robustness of our model and show that it is possible to use the first-order Gauss–Markov model, which has the least complexity, and still maintain an accurate estimation of a vehicle’s future location over time using only its current position. Our model can assist in providing better modeling of positioning errors and can be used as a prediction tool to improve the performance of classical localization algorithms such as the Kalman filter.

  14. Hot topics, urgent priorities, and ensuring success for racial/ethnic minority young investigators in academic pediatrics.

    Science.gov (United States)

    Flores, Glenn; Mendoza, Fernando S; Fuentes-Afflick, Elena; Mendoza, Jason A; Pachter, Lee; Espinoza, Juan; Fernandez, Cristina R; Arnold, Danielle D P; Brown, Nicole M; Gonzalez, Kymberly M; Lopez, Cynthia; Owen, Mikah C; Parks, Kenya M; Reynolds, Kimberly L; Russell, Christopher J

    2016-12-09

    The number of racial/ethnic minority children will exceed the number of white children in the USA by 2018. Although 38% of Americans are minorities, only 12% of pediatricians, 5% of medical-school faculty, and 3% of medical-school professors are minorities. Furthermore, only 5% of all R01 applications for National Institutes of Health grants are from African-American, Latino, and American Indian investigators. Prompted by the persistent lack of diversity in the pediatric and biomedical research workforces, the Academic Pediatric Association Research in Academic Pediatrics Initiative on Diversity (RAPID) was initiated in 2012. RAPID targets applicants who are members of an underrepresented minority group (URM), disabled, or from a socially, culturally, economically, or educationally disadvantaged background. The program, which consists of both a research project and career and leadership development activities, includes an annual career-development and leadership conference which is open to any resident, fellow, or junior faculty member from an URM, disabled, or disadvantaged background who is interested in a career in academic general pediatrics. As part of the annual RAPID conference, a Hot Topic Session is held in which the young investigators spend several hours developing a list of hot topics on the most useful faculty and career-development issues. These hot topics are then posed in the form of six "burning questions" to the RAPID National Advisory Committee (comprised of accomplished, nationally recognized senior investigators who are seasoned mentors), the RAPID Director and Co-Director, and the keynote speaker. The six compelling questions posed by the 10 young investigators-along with the responses of the senior conference leadership-provide a unique resource and "survival guide" for ensuring the academic success and optimal career development of young investigators in academic pediatrics from diverse backgrounds. A rich conversation ensued on the topics

  15. Teaching for Diversity: Models for Expanding the Supply of Minority Teachers. A Policy Issue Perspective.

    Science.gov (United States)

    Villegas, Ana Maria; And Others

    This collection is based on two studies of approaches to increasing the supply of minority teachers. The first was a documentation study of programs supported by the Ford Foundation Minority Education Demonstration Project designed to attract minority candidates, prepare them well, and present model programs. The second study described a range of…

  16. A Multilevel Model of Minority Opinion Expression and Team Decision-Making Effectiveness

    Science.gov (United States)

    Park, Guihyun; DeShon, Richard P.

    2010-01-01

    The consideration of minority opinions when making team decisions is an important factor that contributes to team effectiveness. A multilevel model of minority opinion influence in decision-making teams is developed to address the conditions that relate to adequate consideration of minority opinions. Using a sample of 57 teams working on a…

  17. Life Path Analysis and Performance: Factors Relating to Success Among Minority Enlisted Personnel in the Navy.

    Science.gov (United States)

    1980-11-01

    0650 .1438* b. Career Expectation V39 Confident of ability to succeed -.0552 .1198* -V85 Heard Navy schools are good .0486 .0686* V86 Thought Navy...a b. Career Expectation Model V39 Confident of ability to succeed. V88 Felt Navy give me satisfaction. V92 Promised advance after boot camp. V98 Navy...science. V89 Educational requirements of profession. b. Career Expectation Model V39 Confident of ability to succeed. V85 Heard Navy schools are good. V92

  18. Mentoring Through Research as a Catalyst for the Success of Under-represented Minority Students in the Geosciences

    Science.gov (United States)

    Marsaglia, K.; Simila, G.; Pedone, V.; Yule, D.

    2003-12-01

    The Catalyst Program of the Department of Geological Sciences at California State University Northridge has been developed by four faculty members who were the recipients of a three-year award (2002-2005) from the National Science Foundation. The goal of the program is to increase minority participation and success in the geosciences. The program seeks to enrich the educational experience by introducing students at all levels (individual and team) to research in the geosciences (such as data analysis for earthquake hazards for 1994 Northridge event, paleoseismology of San Andreas fault, Waipaoa, New Zealand sedimentary system and provenance studies, and the Barstow formation geochronology and geochemistry), and to decrease obstacles that affect academic success. Both these goals are largely achieved by the formation of integrated high school, undergraduate, and graduate research groups, which also provide fulfilling and successful peer mentorship. New participants first complete a specially designed course that introduces them to peer-mentoring, collaborative learning (think-pair share), and research on geological data sets. Students of all experience levels then become members of research teams and conduct four mini-projects and associated poster presentations, which deepens academic and research skills as well as peer-mentor relationships. This initial research experience has been very beneficial for the student's degree requirements of a senior research project and oral presentation. Evaluation strategies include the student research course presentations, summer field projects, and external review of student experiences. The Catalyst Program provides significant financial support to participants to allow them to focus their time on their education. A component of peer-tutoring has been implemented for promoting additional student success. The program has been highly successful in its two year development. To date, undergraduates and graduate students have

  19. Models to increase enrollment of minority females in science-based careers.

    Science.gov (United States)

    Taylor, V. S.; Erwin, K. W.; Ghose, M.; Perry-Thornton, E.

    2001-01-01

    Enrollment of African-American females in academic pathways that lead to science based-careers may be limited by gender discrepancies in standardized test scores, academic preparation, selecting "college-prep" course work in the high school curriculum, and lack of mentors or role models. Barriers related to teacher characteristics are: (a) lack of self-confidence, (b) learning environment, (c) teacher behavior, (d) lack of female role models, and (e) failure to see the relevance between the classes and a female's expected role in life. Other limiting factors include differences in access to educational resources, differences in economic status, differences in interest or choice, cultural barriers, and lack of encouragement. Confidence building models that improve enrollment of minority females in science-based careers include equitable teaching instruction, inquiry-based pedagogy, and cooperative learning. Practices that correlate with achievement and success include challenging curricula, a nurturing learning environment, high expectations, community service, research experiences, and mentoring relationships. PMID:12653386

  20. Developing a Successful Open Source Training Model

    Directory of Open Access Journals (Sweden)

    Belinda Lopez

    2010-01-01

    Full Text Available Training programs for open source software provide a tangible, and sellable, product. A successful training program not only builds revenue, it also adds to the overall body of knowledge available for the open source project. By gathering best practices and taking advantage of the collective expertise within a community, it may be possible for a business to partner with an open source project to build a curriculum that promotes the project and supports the needs of the company's training customers. This article describes the initial approach used by Canonical, the commercial sponsor of the Ubuntu Linux operating system, to engage the community in the creation of its training offerings. We then discuss alternate curriculum creation models and some of the conditions that are necessary for successful collaboration between creators of existing documentation and commercial training providers.

  1. Model Minority Stereotyping, Perceived Discrimination, and Adjustment Among Adolescents from Asian American Backgrounds.

    Science.gov (United States)

    Kiang, Lisa; Witkow, Melissa R; Thompson, Taylor L

    2016-07-01

    The model minority image is a common and pervasive stereotype that Asian American adolescents must navigate. Using multiwave data from 159 adolescents from Asian American backgrounds (mean age at initial recruitment = 15.03, SD = .92; 60 % female; 74 % US-born), the current study targeted unexplored aspects of the model minority experience in conjunction with more traditionally measured experiences of negative discrimination. When examining normative changes, perceptions of model minority stereotyping increased over the high school years while perceptions of discrimination decreased. Both experiences were not associated with each other, suggesting independent forms of social interactions. Model minority stereotyping generally promoted academic and socioemotional adjustment, whereas discrimination hindered outcomes. Moreover, in terms of academic adjustment, the model minority stereotype appears to protect against the detrimental effect of discrimination. Implications of the complex duality of adolescents' social interactions are discussed.

  2. Expanding on Successful Concepts, Models, and Organization

    Energy Technology Data Exchange (ETDEWEB)

    Teeguarden, Justin G.; Tan, Yu-Mei; Edwards, Stephen W.; Leonard, Jeremy A.; Anderson, Kim A.; Corley, Richard A.; Kile, Molly L.; L. Massey Simonich, Staci; Stone, David; Tanguay, Robert L.; Waters, Katrina M.; Harper, Stacey L.; Williams, David E.

    2016-09-06

    In her letter to the editor1 regarding our recent Feature Article “Completing the Link between Exposure Science and Toxicology for Improved Environmental Health Decision Making: The Aggregate Exposure Pathway Framework” 2, Dr. von Göetz expressed several concerns about terminology, and the perception that we propose the replacement of successful approaches and models for exposure assessment with a concept. We are glad to have the opportunity to address these issues here. If the goal of the AEP framework was to replace existing exposure models or databases for organizing exposure data with a concept, we would share Dr. von Göetz concerns. Instead, the outcome we promote is broader use of an organizational framework for exposure science. The framework would support improved generation, organization, and interpretation of data as well as modeling and prediction, not replacement of models. The field of toxicology has seen the benefits of wide use of one or more organizational frameworks (e.g., mode and mechanism of action, adverse outcome pathway). These frameworks influence how experiments are designed, data are collected, curated, stored and interpreted and ultimately how data are used in risk assessment. Exposure science is poised to similarly benefit from broader use of a parallel organizational framework, which Dr. von Göetz correctly points out, is currently used in the exposure modeling community. In our view, the concepts used so effectively in the exposure modeling community, expanded upon in the AEP framework, could see wider adoption by the field as a whole. The value of such a framework was recognized by the National Academy of Sciences.3 Replacement of models, databases, or any application with the AEP framework was not proposed in our article. The positive role broader more consistent use of such a framework might have in enabling and advancing “general activities such as data acquisition, organization…,” and exposure modeling was discussed

  3. Invisible hand effect in an evolutionary minority game model

    Science.gov (United States)

    Sysi-Aho, Marko; Saramäki, Jari; Kaski, Kimmo

    2005-03-01

    In this paper, we study the properties of a minority game with evolution realized by using genetic crossover to modify fixed-length decision-making strategies of agents. Although the agents in this evolutionary game act selfishly by trying to maximize their own performances only, it turns out that the whole society will eventually be rewarded optimally. This “invisible hand” effect is what Adam Smith over two centuries ago expected to take place in the context of free market mechanism. However, this behaviour of the society of agents is realized only under idealized conditions, where all agents are utilizing the same efficient evolutionary mechanism. If on the other hand part of the agents are adaptive, but not evolutionary, the system does not reach optimum performance, which is also the case if part of the evolutionary agents form a uniformly acting “cartel”.

  4. A Model of Asian and Pacific Islander Sexual Minority Acculturation

    Science.gov (United States)

    Hahm, Hyeouk Chris; Adkins, Chris

    2009-01-01

    In the United States, the interplay of racism, sexism, and acculturation creates psychological and social stressors that may affect the development of positive ethnic/sexual identities among Asian and Pacific Islander (API) adolescents. This article proposes a new model of identity formation theory for API gay, lesbian, bisexual, and transgender…

  5. Financial modeling: Rx for financial success.

    Science.gov (United States)

    Marino, D

    2001-01-01

    In an era of managed care, cost cutting and finding ways to increase revenue are key goals in the survival of group practices. Many practices find that they have to boost their revenue by a certain amount (for example, 20-30% within the next three years) to maintain viability in the health care marketplace. Understanding how to generate that revenue and influence short-term and long-term financial outcomes is a far trickier process. This article details how practice administrators can influence a practice's bottom line through a three-step process: (1) identify the components of the practice's financial performance and drivers of performance results, (2) diagnose the practice's current financial situation, and (3) pinpoint benchmarks and targets for success.

  6. The impact of the language barrier on the success of Hungarian minority women in the higher education system of Serbia

    Directory of Open Access Journals (Sweden)

    Lendák-Kabók Karolina

    2017-01-01

    Full Text Available The subject of the paper is to analyze the impact of the language barrier faced by Hungarian minority female professors and students in the higher education sys­tem of Serbia. The aim of this paper is to propose measures which might allow Hungarian minority students to overcome the language barrier more easily and to raise awareness for the need of more Hungarian women in the fields of science, technology, engineering and mathematics (STEM. The analysis is based on twenty four semi-structured interviews conducted with minority Hungarian female professors and students, who are working or studying at the University of Novi Sad, Serbia. Interviews were conducted with a pre-composed questionnaire between the end of 2014 and the beginning of 2015. Interviewees were chosen with a snowball sampling method. Results of analysis show that the majority of Hungarian women face a language barrier at the start of their studies, mostly because of their limited knowledge of the majority’s language. These barriers were more pronounced in Hungarian female students than with professor. This phenomenon can be attributed to the time in which they grew up, or to a different social environment of the twentieth century, when bilingualism was completely natural, from which, less segregation of the nations resulted and a better knowledge of the Serbian language. The professors particularly point out that being bilingual is a great advantage and that their knowledge of several languages was a key advantage in their academic careers. With the analysis of the interviews it was determined that the language barrier was mostly pronounced for students of social sciences and humanities (SSH, where language is the primary tool of communication. The language barrier was less important for the students studying in STEM sciences, where students and professors interact through formulas and written exams.

  7. Expanding on Successful Concepts, Models, and Organization

    Science.gov (United States)

    If the goal of the AEP framework was to replace existing exposure models or databases for organizing exposure data with a concept, we would share Dr. von Göetz concerns. Instead, the outcome we promote is broader use of an organizational framework for exposure science. The f...

  8. A Predictive Model for MSSW Student Success

    Science.gov (United States)

    Napier, Angela Michele

    2011-01-01

    This study tested a hypothetical model for predicting both graduate GPA and graduation of University of Louisville Kent School of Social Work Master of Science in Social Work (MSSW) students entering the program during the 2001-2005 school years. The preexisting characteristics of demographics, academic preparedness and culture shock along with…

  9. LIFE DISTRIBUTION OF SERIES UNDER THE SUCCESSIVE DAMAGE MODEL

    Institute of Scientific and Technical Information of China (English)

    WANG Dongqian; C. D. Lai; LI Guoying

    2003-01-01

    We analyse further the reliability behaviour of series and parallel systems in the successive damage model initiated by Downton. The results are compared with those obtained for other models with different bivariate distributions.

  10. Model of key success factors for Business Intelligence implementation

    Directory of Open Access Journals (Sweden)

    Peter Mesaros

    2016-07-01

    Full Text Available New progressive technologies recorded growth in every area. Information-communication technologies facilitate the exchange of information and it facilitates management of everyday activities in enterprises. Specific modules (such as Business Intelligence facilitate decision-making. Several studies have demonstrated the positive impact of Business Intelligence to decision-making. The first step is to put in place the enterprise. The implementation process is influenced by many factors. This article discusses the issue of key success factors affecting to successful implementation of Business Intelligence. The article describes the key success factors for successful implementation and use of Business Intelligence based on multiple studies. The main objective of this study is to verify the effects and dependence of selected factors and proposes a model of key success factors for successful implementation of Business Intelligence. Key success factors and the proposed model are studied in Slovak enterprises.

  11. A Model of Successful School Leadership from the International Successful School Principalship Project

    Directory of Open Access Journals (Sweden)

    David Gurr

    2015-03-01

    Full Text Available The International Successful School Principalship Project (ISSPP has been actively conducting research about the work of successful principals since 2001. Findings from four project books and eight models derived from this project are synthesised into a model of successful school leadership. Building on Gurr, Drysdale and Mulford’s earlier model, the work of school leaders is described as engaging within the school context to influence student and school outcomes through interventions in teaching and learning, school capacity building, and the wider context. The qualities a leader brings to their role, a portfolio approach to using leadership ideas, constructing networks, collaborations and partnerships, and utilising accountability and evaluation for evidence-informed improvement, are important additional elements. The model is applicable to all in leadership roles in schools.

  12. Understanding the Influence of Model Minority Stereotypes on Asian American Community College Students

    Science.gov (United States)

    Assalone, Amanda E.; Fann, Amy

    2017-01-01

    Contrary to the model minority myth that portrays Asian Americans as academic all-stars overrepresented in elite 4-year institutions, nearly half of all Asian American college students do, in fact, attend community colleges, and many experience myriad challenges. This exploratory study utilized a qualitative analysis and investigated how model…

  13. The Road of ERP Success: A Framework Model for Successful ERP Implementation

    Directory of Open Access Journals (Sweden)

    Sevenpri Candra

    2011-11-01

    Full Text Available To compete with nowadays business is to implement technology and align it into their business strategy. One of technology that commonly implement is Enterprise Resource Planning (ERP. This research will examined what are critical success factor of ERP and the impact of their business outcomes. A framework model for ERP Implementation success is constructs from several research or previous study in Implementation ERP. This study will extends in the research field of successful implementation ERP and implication factor for business practice to have more knowledge in term of implementation ERP and their business strategy. 

  14. A STUDY ON THE SUCCESSION MODEL OF FAMILY BUSINESSS

    OpenAIRE

    Hung-Jung Chang; Szu-Ju Lin

    2011-01-01

    Family business has to face issues such as ownership issue, governance structure issue and succession issue, etc. in enterprise development history. Among them, the succession issue is an important transition point in enterprise’s survival and development. It is thus thought of as one of the most important strategic and decision making issues in the enterprise. This article aims at investigating the succession model of Family business. First, reviews are done on the meaning of Family business...

  15. Injection-moulded models of major and minor arteries: the variability of model wall thickness owing to casting technique.

    Science.gov (United States)

    O'Brien, T; Morris, L; O'Donnell, M; Walsh, M; McGloughlin, T

    2005-09-01

    Cardiovascular disease of major and minor arteries is a common cause of death in Western society. The wall mechanics and haemodynamics within the arteries are considered to be important factors in the disease formation process. This paper is concerned with the development of an efficient computer-integrated technique to manufacture idealized and realistic models of diseased major and minor arteries from radiological images and to address the issue of model wall thickness variability. Variations in wall thickness from the original computer models to the final castings are quantified using a CCD camera. The results found that wall thickness variation from the major and minor idealized artery models to design specification were insignificant, up to a maximum of 16 per cent. In realistic models, however, differences were up to 23 per cent in the major arterial models and 58 per cent in the minor arterial models, but the wall thickness variability remained within the limits of previously reported wall thickness results. It is concluded that the described injection moulding procedure yields idealized and realistic castings suitable for use in experimental investigations, with idealized models giving better agreement with design. Wall thickness is variable and should be assessed after the models are manufactured.

  16. A relational model of sexual minority mental and physical health: The negative effects of shame on relationships, loneliness, and health.

    Science.gov (United States)

    Mereish, Ethan H; Poteat, V Paul

    2015-07-01

    Sexual minorities (e.g., lesbians, gay men, bisexual individuals) are at an increased risk for poorer mental and physical health outcomes than heterosexuals, and some of these health disparities relate to minority stressors such as discrimination. Yet, there is little research elucidating pathways that predict health or that promote resiliency among sexual minorities. Building on the minority stress model, the present study utilized relational cultural theory to situate sexual minority health within a relational framework. Specifically, the study tested mediators of the relationships between distal (i.e., discrimination, rejection, victimization) and proximal stressors (i.e., internalized homophobia, sexual orientation concealment) and psychological and physical distress for sexual minorities. Among 719 sexual minority adults, structural equation modeling analyses were used to test 4 models reflecting the mediating effects of shame, poorer relationships with a close peer and the lesbian/gay/bisexual/transgender (LGBT) community, and loneliness on the associations between minority stressors and psychological distress (i.e., depression and anxiety) and physical distress (i.e., distressing physical symptoms). As hypothesized, the associations between distal and proximal minority stressors and distress were mediated by shame, poorer relationships with a close peer and the LGBT community, and loneliness. Findings underscore the possible relational and interpersonal mechanisms by which sexual minority stressors lead to psychological and physical distress.

  17. [Active ageing and success: A brief history of conceptual models].

    Science.gov (United States)

    Petretto, Donatella Rita; Pili, Roberto; Gaviano, Luca; Matos López, Cristina; Zuddas, Carlo

    2016-01-01

    The aim of this paper is to analyse and describe different conceptual models of successful ageing, active and healthy ageing developed in Europe and in America in the 20° century, starting from Rowe and Kahn's original model (1987, 1997). A narrative review was conducted on the literature on successful ageing. Our review included definition of successful ageing from European and American scholars. Models were found that aimed to describe indexes of active and healthy ageing, models devoted to describe processes involved in successful ageing, and additional views that emphasise subjective and objective perception of successful ageing. A description is also given of critiques on previous models and remedies according to Martin et al. (2014) and strategies for successful ageing according to Jeste and Depp (2014). The need is discussed for the enhancement of Rowe and Kahn's model and other models with a more inclusive, universal description of ageing, incorporating scientific evidence regarding active ageing. Copyright © 2015 SEGG. Publicado por Elsevier España, S.L.U. All rights reserved.

  18. Modesto Junior College's Student Success Plan: A Model for Student Success/PFE Planning.

    Science.gov (United States)

    McKuin, Kathleen

    This is a report on the student success model designed by Modesto Junior College (MJC) (California) in conjunction with the state-established Partnership for Excellence (PFE) program goals. The PFE program addresses goals of the community college's mission along with more direct emphasis on transfer programs, degrees and certificates awarded,…

  19. Modesto Junior College's Student Success Plan: A Model for Student Success/PFE Planning.

    Science.gov (United States)

    McKuin, Kathleen

    This is a report on the student success model designed by Modesto Junior College (MJC) (California) in conjunction with the state-established Partnership for Excellence (PFE) program goals. The PFE program addresses goals of the community college's mission along with more direct emphasis on transfer programs, degrees and certificates awarded,…

  20. Model thermal response to minor radiative energy sources and sinks in the middle atmosphere

    Science.gov (United States)

    Fomichev, V. I.; Fu, C.; de Grandpré, J.; Beagley, S. R.; Ogibalov, V. P.; McConnell, J. C.

    2004-10-01

    This paper presents the thermal response of the Canadian middle atmosphere model (CMAM) to minor radiative energy sources and sinks. These include chemical heating, infrared (IR) H2O cooling, sphericity effect in solar heating, and solar heating in the near-IR CO2 bands. All of these energy sources/sinks can be considered as minor ones either in terms of their magnitude or in terms of the limited height region where they are of importance or both. To examine the thermal response of the middle atmosphere, a version of the CMAM with an interactive gas phase chemistry scheme has been used in a series of multiyear experiments for conditions of perpetual July. Each of the analyzed mechanisms may provide a noticeable contribution into the model energy balance that results in a statistically significant model response. Various forcing terms due to minor energy sources/sinks have different spatial and temporal distributions. Their magnitudes vary from tenths K d-1 for the sphericity effect up to ˜10 K d-1 for chemical heating that provides corresponding thermal responses of a few to about 20 K in the middle atmosphere. The model thermal response depends on the magnitude of the applied forcing but is not always local and can be spread beyond the regions where the forcing terms are initially applied. On a globally averaged basis the local strength of the model response is nearly proportional to the magnitude of the small forcing terms but shows nonlinearity when forcing due to chemical heating exceeds ˜1 K d-1 in the mesosphere. Accounting for the combined effects of the minor energy sources and sinks leads to a better agreement between the model temperature field and observations.

  1. Mentoring Through Research as a Catalyst for the Success of Under-represented Minority Students in the Geosciences at California State University Northridge

    Science.gov (United States)

    Marsaglia, K. M.; Pedone, V.; Simila, G. W.; Yule, J. D.

    2002-12-01

    The Catalyst Program of the Department of Geological Sciences at California State University Northridge has been developed by four faculty members who were the recipients of a three-year award (2002-2005) from the National Science Foundation. The goal of the program is to increase minority participation and success in the geosciences. The program seeks to enrich the educational experience by introducing students at all levels to research in the geosciences and to decrease obstacles that affect academic success. Both these goals are largely achieved by the formation of integrated high school, undergraduate, and graduate research groups, which also provide fulfilling and successful peer mentorship. The Catalyst Program provides significant financial support to participants to allow them to focus their time on their education. New participants first complete a specially designed course that introduces them to peer-mentoring, collaborative learning, and geological research. Students of all experience levels then become members of research teams, which deepens academic and research skills as well as peer-mentor relationships. The program was highly successful in its inaugural year. To date, undergraduates and graduate students in the program coauthored six abstracts at professional meetings and one conference paper. High-school students gained first hand experience of a college course and geologic research. Perhaps the most important impacts of the program are the close camaraderie that has developed and the increased ability of the Catalyst students to plan and execute research with greater confidence and self-esteem.

  2. The Roma Community and International Institutions: Only Relative Success in the Protection of Human and Minority Rights

    Directory of Open Access Journals (Sweden)

    Jagoda Novak

    2004-12-01

    Full Text Available The paper treats problems pertaining to the legislative framework, as well as to the practical implementation of mechanisms for the protection of the human and minority rights of the Roma community. Special emphasis is placed on international and European protective mechanisms, on the pressure that they exert on national states, as well as on their frameworks for protecting the human rights of the Roma community, which – in view of the absence of a mother state in this case – is the only guarantee for the respect of Roma human rights. International frameworks and activities are also the only guarantee assuring the social integration of the Roma, a goal towards which modern European society strives. The paper attempts to determine the position of Croatia in respect to European countries in this matter, with special reference to problems in education faced by the Roma community and on the experience of the non-governmental and donator sector in regard to work with the Roma community. An overview of existing documents and acts reveals that a legislative framework for respecting Roma rights already exists, and that the European Union just has to supplement it with a legislative document exclusively dealing with the problems of the Roma, given the specific aspects of realising the human rights of members of this community. In the implementation of legislative acts, however, there is a series of inconsistencies, resulting from inadequate monitoring of the implementation of European documents, from an absence of repercussions for non-implementing them and from an imbalanced approach to old and new members of the European Union. In the context of association with the European community of states, Croatia has an opportunity to improve the position of its Roma community in a relatively short period of time and to accelerate the social integration of the Roma, although – due to an unsatisfactory and non-systematic approach, no consultations with

  3. Establishing a Cloud Computing Success Model for Hospitals in Taiwan

    Directory of Open Access Journals (Sweden)

    Jiunn-Woei Lian PhD

    2017-01-01

    Full Text Available The purpose of this study is to understand the critical quality-related factors that affect cloud computing success of hospitals in Taiwan. In this study, private cloud computing is the major research target. The chief information officers participated in a questionnaire survey. The results indicate that the integration of trust into the information systems success model will have acceptable explanatory power to understand cloud computing success in the hospital. Moreover, information quality and system quality directly affect cloud computing satisfaction, whereas service quality indirectly affects the satisfaction through trust. In other words, trust serves as the mediator between service quality and satisfaction. This cloud computing success model will help hospitals evaluate or achieve success after adopting private cloud computing health care services.

  4. A STUDY ON THE SUCCESSION MODEL OF FAMILY BUSINESSS

    Directory of Open Access Journals (Sweden)

    Hung-Jung Chang

    2011-10-01

    Full Text Available Family business has to face issues such as ownership issue, governance structure issue and succession issue, etc. in enterprise development history. Among them, the succession issue is an important transition point in enterprise’s survival and development. It is thus thought of as one of the most important strategic and decision making issues in the enterprise. This article aims at investigating the succession model of Family business. First, reviews are done on the meaning of Family business. Next, reviews and comments are made on the related models of the succession of Family business. It can be seen from the research that the ways of succession of Family business can be divided into process point of view and psychological point of view. Finally, main conclusions of this article are summarized and perspectives are also made on the future researches.

  5. Establishing a Cloud Computing Success Model for Hospitals in Taiwan.

    Science.gov (United States)

    Lian, Jiunn-Woei

    2017-01-01

    The purpose of this study is to understand the critical quality-related factors that affect cloud computing success of hospitals in Taiwan. In this study, private cloud computing is the major research target. The chief information officers participated in a questionnaire survey. The results indicate that the integration of trust into the information systems success model will have acceptable explanatory power to understand cloud computing success in the hospital. Moreover, information quality and system quality directly affect cloud computing satisfaction, whereas service quality indirectly affects the satisfaction through trust. In other words, trust serves as the mediator between service quality and satisfaction. This cloud computing success model will help hospitals evaluate or achieve success after adopting private cloud computing health care services.

  6. Minority Games

    Energy Technology Data Exchange (ETDEWEB)

    Metzler, R [Institut fuer Theoretische Physik, Universitaet Wuerzburg, Am Hubland, D-97074 Wuerzburg (Germany)

    2005-02-25

    New branches of scientific disciplines often have a few paradigmatic models that serve as a testing ground for theories and a starting point for new inquiries. In the late 1990s, one of these models found fertile ground in the growing field of econophysics: the Minority Game (MG), a model for speculative markets that combined conceptual simplicity with interesting emergent behaviour and challenging mathematics. The two basic ingredients were the minority mechanism (a large number of players have to choose one of two alternatives in each round, and the minority wins) and limited rationality (each player has a small set of decision rules, and chooses the more successful ones). Combining these, one observes a phase transition between a crowded and an inefficient market phase, fat-tailed price distributions at the transition, and many other nontrivial effects. Now, seven years after the first paper, three of the key players-Damien Challet, Matteo Marsili and Yi-Cheng Zhang-have published a monograph that summarizes the current state of the science. The book consists of two parts: a 100-page overview of the various aspects of the MG, and reprints of many essential papers. The first chapters of Part I give a well-written description of the motivation and the history behind the MG, and then go into the phenomenology and the mathematical treatment of the model. The authors emphasize the 'physics' underlying the behaviour and give coherent, intuitive explanations that are difficult to extract from the original papers. The mathematics is outlined, but calculations are not carried out in great detail (maybe they could have been included in an appendix). Chapter 4 then discusses how and why the MG is a model for speculative markets, how it can be modified to give a closer fit to observed market statistics (in particular, reproducing the 'stylized facts' of fat-tailed distributions and volatility clustering), and what conclusions one can draw from the

  7. Minority Population Concentration and Earnings: Evidence from Fixed-Effects Models

    Science.gov (United States)

    Johnson, Kecia; Pais, Jeremy; South, Scott J.

    2012-01-01

    Consistent with the hypothesis that heightened visibility and competition lead to greater economic discrimination against minorities, countless studies have observed a negative association between minority population concentration and minority socioeconomic attainment. But minorities who reside in areas with high minority concentration are likely…

  8. A conceptual model for faculty development in academic medicine: the underrepresented minority faculty experience.

    Science.gov (United States)

    Daley, Sandra P; Broyles, Shelia L; Rivera, Lourdes M; Brennan, Jesse J; Lu, Ethel Regis; Reznik, Vivian

    2011-01-01

    In May 2010, the Association of American Medical Colleges reported that nonwhite professors have a lower promotion rate than white professors. A cohort of 30 underrepresented minority (URM) junior faculty who participated in a structured faculty development program at a public, research-intensive, academic medical center were followed in a 10-year longitudinal study. This paper reports on the career status of 12 of the 30 URM faculty who were eligible for promotion during this period. Ninety-two percent (11/12) of URM faculty eligible for promotion were promoted to associate professor. When asked what factors contributed to their success, these URM faculty identified access and support of senior faculty mentors, peer networking, professional skill development, and knowledge of institutional culture. A faculty development program that addresses these components can promote the success of URM faculty in academic medicine.

  9. Successful Strategies for Practice-Based Recruitment of Racial and Ethnic Minority Pregnant Women in a Randomized Controlled Trial: the IDEAS for a Healthy Baby Study.

    Science.gov (United States)

    Goff, Sarah L; Youssef, Yara; Pekow, Penelope S; White, Katharine O; Guhn-Knight, Haley; Lagu, Tara; Mazor, Kathleen M; Lindenauer, Peter K

    2016-12-01

    Racial/ethnic minority patients are often underrepresented in clinical trials. Efforts to address barriers to participation may improve representation, thus enhancing our understanding of how research findings apply to more diverse populations. The IDEAS (Information, Description, Education, Assistance, and Support) for a Healthy Baby study was a randomized controlled trial (RCT) of an intervention to reduce barriers to using publicly reported quality data for low-income, racial/ethnic minority women. We used strategies grounded in a health equity framework to address barriers to recruitment and retention in three domains: preparation, process, and patient-centeredness. "Preparation" included teaching study staff about health inequities, role-playing skills to develop rapport and trust, and partnering with clinic staff. "Processes" included use of electronic registration systems to pre-screen potential candidates and determine when eligible participants were in clinic and an electronic database to track patients through the study. Use of a flexible protocol, stipends, and consideration of literacy levels promoted "patient-centeredness." We anticipated needing to recruit 800 women over 18 months to achieve a completion goal of 650. Using the recruitment and retention strategies outlined above, we recruited 746 women in 15 months, achieving higher recruitment (87.1 %) and retention rates (97.3 %) than we had anticipated. These successful recruitment and retention strategies used for a large RCT promoted inclusivity and accessibility. Researchers seeking to recruit racial and ethnic minority pregnant women in similar settings may find the preparation, process, and patient-centered strategies used in this study applicable for their own studies. ClinicalTrials.gov NCT01784575 , 1R21HS021864-01.

  10. Models Predicting Success of Infertility Treatment: A Systematic Review

    Science.gov (United States)

    Zarinara, Alireza; Zeraati, Hojjat; Kamali, Koorosh; Mohammad, Kazem; Shahnazari, Parisa; Akhondi, Mohammad Mehdi

    2016-01-01

    Background: Infertile couples are faced with problems that affect their marital life. Infertility treatment is expensive and time consuming and occasionally isn’t simply possible. Prediction models for infertility treatment have been proposed and prediction of treatment success is a new field in infertility treatment. Because prediction of treatment success is a new need for infertile couples, this paper reviewed previous studies for catching a general concept in applicability of the models. Methods: This study was conducted as a systematic review at Avicenna Research Institute in 2015. Six data bases were searched based on WHO definitions and MESH key words. Papers about prediction models in infertility were evaluated. Results: Eighty one papers were eligible for the study. Papers covered years after 1986 and studies were designed retrospectively and prospectively. IVF prediction models have more shares in papers. Most common predictors were age, duration of infertility, ovarian and tubal problems. Conclusion: Prediction model can be clinically applied if the model can be statistically evaluated and has a good validation for treatment success. To achieve better results, the physician and the couples’ needs estimation for treatment success rate were based on history, the examination and clinical tests. Models must be checked for theoretical approach and appropriate validation. The privileges for applying the prediction models are the decrease in the cost and time, avoiding painful treatment of patients, assessment of treatment approach for physicians and decision making for health managers. The selection of the approach for designing and using these models is inevitable. PMID:27141461

  11. Child and parental self-monitoring as determinants of success in the treatment of morbid obesity in low-income minority children.

    Science.gov (United States)

    Germann, Julie N; Kirschenbaum, Daniel S; Rich, Barry H

    2007-01-01

    To examine self-monitoring by children and parents as related to weight control over 6 months within a long-term multidisciplinary program for low-income minority children with morbid obesity. The weight changes of 228 children with obesity were evaluated according to frequency of child and parental self-monitoring. Predictors of self-monitoring were also evaluated. Children who self-monitored on most days lost more weight over 6 months of treatment compared with less-consistent self-monitors. Children whose parents self-monitored were also more likely to self-monitor and lose weight. Self-monitoring seems just as critical for successful weight control among low-income minority children with obesity as it is in the middle-class populations. Although lower education and higher levels of psychosocial stress may decrease self-monitoring and participation by these families, they might still benefit from targeting highly consistent self-monitoring (by parents and children) as a primary goal in weight-control programs.

  12. A model of succession planning for mental health nurse practitioners.

    Science.gov (United States)

    Hampel, Sally; Procter, Nicholas; Deuter, Kate

    2010-08-01

    This paper reviews current literature on succession planning for mental health nurse practitioners (NPs) and discusses a model of succession planning that is underpinned by principals of leadership development, workforce participation and client engagement. The paper identifies succession planning as a means of managing a present and future workforce, while simultaneously addressing individual and organizational learning and practice development needs. A discussion of the processes attendant upon sustainable succession planning - collegial support, career planning and development, information exchange, capacity building, and mentoring is framed within the potential interrelationships between existing NP, developing NP and service directors and/or team managers. Done effectively and in partnership with wider clinical services, succession planning has the potential to build NP leadership development and leadership transition more broadly within mental health services.

  13. A Career Success Model for Academics at Malaysian Research Universities

    Science.gov (United States)

    Abu Said, Al-Mansor; Mohd Rasdi, Roziah; Abu Samah, Bahaman; Silong, Abu Daud; Sulaiman, Suzaimah

    2015-01-01

    Purpose: The purpose of this paper is to develop a career success model for academics at the Malaysian research universities. Design/methodology/approach: Self-administered and online surveys were used for data collection among 325 academics from Malaysian research universities. Findings: Based on the analysis of structural equation modeling, the…

  14. Formulation of a Success Model in Pharmaceutical R&D

    Directory of Open Access Journals (Sweden)

    Hyunju Rachel Kim

    2014-03-01

    Full Text Available Recently, pharmaceutical R&D has been demanded to increase productivity in terms of time efficiency and innovation as well. There have been discontinuous challenges coming up in this industry, such as globalized R&D competition, stricter regulation, lengthy process of clinical trials, and so on. Considering external changes, high competition, and discontinuities in the industry, it is a good time to redefine the concept of success in pharmaceutical R&D. Thus, this article attempts to formulate a new success model in pharmaceutical R&D, through contextualizing the industry’s success factors.

  15. Dealing With Cultural Diversity : The Endorsement of Societal Models Among Ethnic Minority and Majority Youth in the Netherlands

    NARCIS (Netherlands)

    Brug, Peary; Verkuyten, Maykel

    2007-01-01

    The present research was conducted among ethnic minority and majority youth in the Netherlands, examining the endorsement of four models for dealing with multiculturalism: mosaic, melting pot, assimilation, and segregation. Results showed that, compared to the majority group, minorities were more in

  16. Minorities Striving and Pursuing Higher Degrees of Success in Earth System Science (MS PHD'S) Beyond the PhD Professional Development Program: A Pilot Project

    Science.gov (United States)

    Johnson, A.; Jearld, A.; Williamson Whitney, V.; Huggans, M.; Ricciardi, L.; Thomas, S. H.; Jansma, P. E.

    2012-12-01

    In 2011 the Minorities Striving and Pursuing Higher Degrees of Success in Earth System Science (MS PHD'S)® initiative launched its newest activity entitled the MS PHD'S "Beyond the PhD (B-PhD) Professional Development Program." This exciting new program was designed to facilitate the development of a new community of underrepresented minority (URM) doctoral candidates and recent doctorate degree recipients in Earth system science (ESS)-related fields. The MS PHD'S B-PhD provides customized support and advocacy for MS PHD'S B-PhD participants in order to facilitate smoother and informed transitions from graduate school, to postdoctoral and tenure-track positions, as well as other "first" jobs in government, industry, and non-profit organizations. In November 2011 the first cohort of MS PHD'S B-PhD participants engaged in intensive sessions on the following topics: "Toolkits for Success for Academia, Business/Industry, Federal Government and Non-Profits", "Defining Short, Mid and Long Term Career Goals", "Accessing and Refining Skill Sets and Other Door Openers", "International Preparation and Opportunities", "Paying it Forward/Lifting as You Climb", and "Customized Strategies for Next Steps". This pilot event, which was hosted by the University of Texas at Arlington's (UTA) College of Science, also provided opportunities for participants to serve as guest lecturers in the UTA's Colleges of Science and Engineering and included one-on-one discussions with MS PHD'S B-PhD mentors and guest speakers who are well established within their individual ESS fields. Insights regarding opportunities, challenges and obstacles commonly faced by URMs within the ESS fields, as well as strategies for success were shared by MS PHD'S B-PhD mentors and guest speakers. Survey results indicate that MS PHD'S B-PhD participants appreciated not only the material covered during this pilot activity, but also appreciated the opportunity to become part of a community of young URM ESS

  17. The Drivers of Success in Business Model Transformation

    Directory of Open Access Journals (Sweden)

    Nenad Savič

    2016-01-01

    Full Text Available Existing empirical literature on business models is still inconclusive about the key drivers of successful business model transformation. The paper explores this issue by using a single longitudinal case study design in combination with grounded theory approach on a medium-sized, high-tech and globally oriented company. Based on on-site visits, interviews and secondary documentation data analysis, the study identifies six generic drivers of successful business model transformation: transformational leadership, discovery driven decision-making, industry improvement – customer specific orientation, content-oriented communication, self-initiative collaborators, and phased separation strategy. The new drivers supplement our existing knowledge on how successful transformation takes place and add to existing drivers, while extensive discussion of their implications may help the managers to execute business transformations more effectively.

  18. Forest-succession models and their ecological and management implications

    Energy Technology Data Exchange (ETDEWEB)

    West, D.; Smith, T.M.; Weinstein, D.A.; Shugart, H.H.

    1981-01-01

    Computer models of forest succession have been developed to an extent that allows their use as a tool for predicting forest ecosystem behavior over long periods of time. This paper outlines the use of one approach to forest succession modeling for a variety of problems including: (1) determining the effect of climate change on forests; (2) integrating information on wildlife habitat changes with the changes in forest structure associated with timber management; (3) assessing the potential effect of air pollutants on forest dynamics; and (4) determining the theoretical importance of disturbance on forest community diversity and function.

  19. The mechanism for the self-adaptation behavior in the evolutionary minority game model

    Institute of Scientific and Technical Information of China (English)

    XIE Yanbo; WANG Bing-Hong; YANG Weisong; WANG Weining

    2004-01-01

    In this paper, we shall present our studies of a generalized evolutionary minority game model in which the agents are divided into several groups. The performance of the individual agent is averaged in each group. We find that there are three different effects in this generalized model, i.e.(1) group averaging effect, (2) left-right asymmetric effect,and (3) self-interaction effect. The former two effects favor the cautious agents, while the last one favors the extreme agents. In most cases, both the analytic results and the numerical simulations demonstrate that the group averaging effect is dominantly important and therefore the performance of the cautious agents is better than that of the extreme agents. However, when the number of groups is sufficiently large, the generalized model can be somehow reduced to the conventional evolutionary minority game model. As the parameters vary in the generalized model, the importance of the above three effects is exchangeable and different types of population distribution emerge.

  20. Electronic Commerce Success Model: A Search for Multiple Criteria

    Directory of Open Access Journals (Sweden)

    Didi Achjari

    2004-01-01

    Full Text Available The current study attempts to develop and examine framework of e-commerce success. In order to obtain comprehensive and robust measures, the framework accomodates key factors that are identified in the literature concerning the success of electronic commerce. The structural model comprises of four exogenous variables (Internal Driver, Internal Impediment, External Driver and Exgternal Impediment and one endogenous variable (Electornic Commerce Success eith 24 observed variables. The study that was administered within large Australian companies using questionaire survey concluded that benefits for both internal organization and external parties from the use of e-commerce were the main factor tro predict perceived and/or expected success of electronic commerce.

  1. Resilience in community: a social ecological development model for young adult sexual minority women.

    Science.gov (United States)

    Zimmerman, Lindsey; Darnell, Doyanne A; Rhew, Isaac C; Lee, Christine M; Kaysen, Debra

    2015-03-01

    Family support and rejection are associated with health outcomes among sexual minority women (SMW). We examined a social ecological development model among young adult SMW, testing whether identity risk factors or outness to family interacted with family rejection to predict community connectedness and collective self-esteem. Lesbian and bisexual women (N = 843; 57% bisexual) between the ages of 18-25 (M = 21.4; SD = 2.1) completed baseline and 12-month online surveys. The sample identified as White (54.2%), multiple racial backgrounds (16.6%), African American (9.6%) and Asian/Asian American (3.1%); 10.2% endorsed a Hispanic/Latina ethnicity. Rejection ranged from 18 to 41% across family relationships. Longitudinal regression indicated that when outness to family increased, SMW in highly rejecting families demonstrated resilience by finding connections and esteem in sexual minority communities to a greater extent than did non-rejected peers. But, when stigma concerns, concealment motivation, and other identity risk factors increased over the year, high family rejection did not impact community connectedness and SMW reported lower collective self-esteem. Racial minority SMW reported lower community connectedness, but not lower collective self-esteem. Families likely buffer or exacerbate societal risks for ill health. Findings highlight the protective role of LGBTQ communities and normative resilience among SMW and their families.

  2. Building a pantheoretical model of dehumanization with transgender men: Integrating objectification and minority stress theories.

    Science.gov (United States)

    Velez, Brandon L; Breslow, Aaron S; Brewster, Melanie E; Cox, Robert; Foster, Aasha B

    2016-10-01

    With a national sample of 304 transgender men, the present study tested a pantheoretical model of dehumanization (Moradi, 2013) with hypotheses derived from objectification theory (Fredrickson & Roberts, 1997), minority stress theory (Meyer, 2003), and prior research regarding men's body image concerns. Specifically, we tested common objectification theory constructs (internalization of sociocultural standards of attractiveness [SSA], body surveillance, body satisfaction) as direct and indirect predictors of compulsive exercise. We also examined the roles of transgender-specific minority stress variables-antitransgender discrimination and transgender identity congruence-in the model. Results of a latent variable structural equation model yielded mixed support for the posited relations. The direct and indirect interrelations of internalization of SSA, body surveillance, and body satisfaction were consistent with prior objectification theory research, but only internalization of SSA yielded a significant direct relation with compulsive exercise. In addition, neither internalization of SSA nor body surveillance yielded significant indirect relations with compulsive exercise. However, antitransgender discrimination yielded predicted indirect relations with body surveillance, body satisfaction, and compulsive exercise, with transgender congruence playing a key mediating role in most of these relations. The implications of this pantheoretical model for research and practice with transgender men are discussed. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

  3. A Lotka-Volterra competition model with seasonal succession.

    Science.gov (United States)

    Hsu, Sze-Bi; Zhao, Xiao-Qiang

    2012-01-01

    A complete classification for the global dynamics of a Lotka-Volterra two species competition model with seasonal succession is obtained via the stability analysis of equilibria and the theory of monotone dynamical systems. The effects of two death rates in the bad season and the proportion of the good season on the competition outcomes are also discussed. © Springer-Verlag 2011

  4. Student Success in College Composition through the Puente Project Model.

    Science.gov (United States)

    Jaffe, Barbara

    Much can be learned from California's Puente Project Model that would help students' success in classrooms as well as in college in general, and in their daily lives. Puente, which means "bridge" in Spanish, began in 1982 at Chabot College in northern California and is now in 38 colleges and 19 high schools statewide. Originally designed…

  5. Acquisition Integration Models: How Large Companies Successfully Integrate Startups

    Directory of Open Access Journals (Sweden)

    Peter Carbone

    2011-10-01

    Full Text Available Mergers and acquisitions (M&A have been popular means for many companies to address the increasing pace and level of competition that they face. Large companies have pursued acquisitions to more quickly access technology, markets, and customers, and this approach has always been a viable exit strategy for startups. However, not all deals deliver the anticipated benefits, in large part due to poor integration of the acquired assets into the acquiring company. Integration can greatly impact the success of the acquisition and, indeed, the combined company’s overall market success. In this article, I explore the implementation of several integration models that have been put into place by a large company and extract principles that may assist negotiating parties with maximizing success. This perspective may also be of interest to smaller companies as they explore exit options while trying to ensure continued market success after acquisition. I assert that business success with acquisitions is dependent on an appropriate integration model, but that asset integration is not formulaic. Any integration effort must consider the specific market context and personnel involved.

  6. Exploring nursing e-learning systems success based on information system success model.

    Science.gov (United States)

    Chang, Hui-Chuan; Liu, Chung-Feng; Hwang, Hsin-Ginn

    2011-12-01

    E-learning is thought of as an innovative approach to enhance nurses' care service knowledge. Extensive research has provided rich information toward system development, courses design, and nurses' satisfaction with an e-learning system. However, a comprehensive view in understanding nursing e-learning system success is an important but less focused-on topic. The purpose of this research was to explore net benefits of nursing e-learning systems based on the updated DeLone and McLean's Information System Success Model. The study used a self-administered questionnaire to collected 208 valid nurses' responses from 21 of Taiwan's medium- and large-scale hospitals that have implemented nursing e-learning systems. The result confirms that the model is sufficient to explore the nurses' use of e-learning systems in terms of intention to use, user satisfaction, and net benefits. However, while the three exogenous quality factors (system quality, information quality, and service quality) were all found to be critical factors affecting user satisfaction, only information quality showed a direct effect on the intention to use. This study provides useful insights for evaluating nursing e-learning system qualities as well as an understanding of nurses' intentions and satisfaction related to performance benefits.

  7. SUCCESSFUL INNOVATIVE CLUSTERS IN ROMANIA – A POSSIBLE MODEL

    Directory of Open Access Journals (Sweden)

    Liliana SCUTARU

    2016-08-01

    Full Text Available The present study proposes the construction of a successful innovative cluster model which will help creating strategies and policies to support the Romanian economic growth and development in the medium and long term. One such architecture designed for supporting innovative clusters, including by attracting foreign capital within clusters order to increase their competitiveness, addresses some concrete measures both in terms of organizational system and management strategy as well as the funding system of clusters. The paper is also emphasizing the multiplicity of factors that are contributing to the creation, to the progressive development and to the success of clusters, the activities developed and the relationships established internationally, so as to ensure that the clusters remain on the market and have a good visibility at national and international levels, essentially contributing to the success of cluster.

  8. Plutonium and Minor Actinides Recycling in Standard BWR using Equilibrium Burnup Model

    Directory of Open Access Journals (Sweden)

    Abdul Waris

    2008-03-01

    Full Text Available Plutonium (Pu and minor actinides (MA recycling in standard BWR with equilibrium burnup model has been studied. We considered the equilibrium burnup model as a simple time independent burnup method, which can manage all possible produced nuclides in any nuclear system. The equilibrium burnup code was bundled with a SRAC cell-calculation code to become a coupled cell-burnup calculation code system. The results show that the uranium enrichment for the criticality of the reactor, the amount of loaded fuel and the required natural uranium supply per year decrease for the Pu recycling and even much lower for the Pu & MA recycling case compared to those of the standard once-through BWR case. The neutron spectra become harder with the increasing number of recycled heavy nuclides in the reactor core. The total fissile rises from 4.77% of the total nuclides number density in the reactor core for the standard once-through BWR case to 6.64% and 6.72% for the Plutonium recycling case and the Pu & MA recycling case, respectively. The two later data may become the main basis why the required uranium enrichment declines and consequently diminishes the annual loaded fuel and the required natural uranium supply. All these facts demonstrate the advantage of plutonium and minor actinides recycling in BWR.

  9. Minority Schools in the South Tyrol and in the Austrian Burgenland: A Comparison of Two Models.

    Science.gov (United States)

    Rowley, A. R.

    1986-01-01

    Presents findings from an empirical study comparing the status of the German minority in the Italian South Tyrol and the Croatian minority in the Austrian Burgenland. The article analyzes observations of actual language use in schools and compares school authorities, curricula, and employment opportunities of the two minorities. (SED)

  10. Modelling clinical systemic lupus erythematosus: similarities, differences and success stories.

    Science.gov (United States)

    Celhar, Teja; Fairhurst, Anna-Marie

    2016-12-24

    Mouse models of SLE have been indispensable tools to study disease pathogenesis, to identify genetic susceptibility loci and targets for drug development, and for preclinical testing of novel therapeutics. Recent insights into immunological mechanisms of disease progression have boosted a revival in SLE drug development. Despite promising results in mouse studies, many novel drugs have failed to meet clinical end points. This is probably because of the complexity of the disease, which is driven by polygenic predisposition and diverse environmental factors, resulting in a heterogeneous clinical presentation. Each mouse model recapitulates limited aspects of lupus, especially in terms of the mechanism underlying disease progression. The main mouse models have been fairly successful for the evaluation of broad-acting immunosuppressants. However, the advent of targeted therapeutics calls for a selection of the most appropriate model(s) for testing and, ultimately, identification of patients who will be most likely to respond.

  11. Modelling clinical systemic lupus erythematosus: similarities, differences and success stories

    Science.gov (United States)

    Celhar, Teja

    2017-01-01

    Abstract Mouse models of SLE have been indispensable tools to study disease pathogenesis, to identify genetic susceptibility loci and targets for drug development, and for preclinical testing of novel therapeutics. Recent insights into immunological mechanisms of disease progression have boosted a revival in SLE drug development. Despite promising results in mouse studies, many novel drugs have failed to meet clinical end points. This is probably because of the complexity of the disease, which is driven by polygenic predisposition and diverse environmental factors, resulting in a heterogeneous clinical presentation. Each mouse model recapitulates limited aspects of lupus, especially in terms of the mechanism underlying disease progression. The main mouse models have been fairly successful for the evaluation of broad-acting immunosuppressants. However, the advent of targeted therapeutics calls for a selection of the most appropriate model(s) for testing and, ultimately, identification of patients who will be most likely to respond. PMID:28013204

  12. Dynamic Model of Markets of Successive Product Generations

    OpenAIRE

    Kaldasch, Joachim

    2015-01-01

    A dynamic microeconomic model is presented that establishes the price and unit sales evolution of heterogeneous goods consisting of successive homogenous product generations. It suggests that for a fast growing supply the mean price of the generations are governed by a logistic decline towards a floor price. It is shown that generations of a heterogeneous good are in mutual competition. Their market shares are therefore governed by a Fisher-Pry law while the total unit sales are governed by t...

  13. Parental monitoring, parental warmth, and minority youths' academic outcomes: exploring the integrative model of parenting.

    Science.gov (United States)

    Lowe, Katie; Dotterer, Aryn M

    2013-09-01

    Guided by the integrative model of parenting, the present study investigated the relationship between parental monitoring and racial/ethnic minority adolescents' school engagement and academic motivation as a function of parental warmth, and explored whether these associations varied for boys and girls. Participants (60 % female) were 208 sixth through eighth grade students (63 % African American, 19 % Latino, 18 % Multiracial) from an urban middle school in the Midwestern United States. Youth completed an in-school survey with items on parenting (parental monitoring, mothers'/fathers' warmth), cognitive engagement (school self-esteem), behavioral engagement (school trouble), and academic motivation (intrinsic motivation). As hypothesized, mothers' warmth enhanced the association between parental monitoring and youths' engagement and motivation. No gender differences in these associations emerged. Fathers' warmth strengthened the negative association between parental monitoring and school trouble, and this association was stronger for boys. Implications regarding the importance of sustaining a high level of monitoring within the context of warm parent-adolescent relationships to best support academic outcomes among minority youth are discussed.

  14. The Council of Europe’s standards on access to the media for minorities: A tale of near misses and staggered successes

    NARCIS (Netherlands)

    T. McGonagle

    2012-01-01

    This chapter examines how minorities' right to freedom of expression and access to the media is protected and promoted under three Council of Europe treaties: the European Convention on Human Rights, the Framework Convention for the Protection of National Minorities and the European Charter for Regi

  15. AstroCom NYC: A National Model for Urban Minority Engagement

    Science.gov (United States)

    Paglione, Timothy; Ford, Saavik; Robbins, Dennis; Mac Low, Mordecai-Mark; Agueros, Marcel A.

    2016-01-01

    AstroCom NYC is an undergraduate mentoring program designed to improve urban minority student access to opportunities in astrophysical research by greatly enhancing partnerships between research astronomers in New York City (City University of New York - an MSI, American Museum of Natural History, and Columbia). AstroCom NYC provides centralized, personalized mentoring as well as financial and academic support, to CUNY undergraduates throughout their studies, plus the resources and opportunities to further CUNY faculty research with students. The goal is that students' residency at AMNH helps them build a sense of belonging in the field, and readies and inspires them for graduate study. AstroCom NYC provides a rigorous Methods of Scientific Research course developed specifically to this purpose, a laptop, research and career mentors, outreach activities, scholarships and stipends, Metrocards, and regular assessment for maximum effectiveness. The goal of this support is to remove barriers to access and success. AMNH serves as the central hub for our faculty and students, who are otherwise dispersed among all five boroughs of the City. We welcomed our third and largest cohort last year, along with 13 additional students through a NASA community college initiative. We review plans for Year 4, when we expect all of our interns to compete for external summer REUs, and our growing participation and leadership within partner activities.

  16. Entrepreneurial Women in Radiology: Role Models of Success.

    Science.gov (United States)

    Anzai, Yoshimi; Meltzer, Carolyn C; DeStigter, Kristen K; Destounis, Stamatia; Pawley, Barbara K; Oates, M Elizabeth

    2016-11-01

    Radiology is undeniably male dominated. Alongside surgery and orthopedic surgery, academic radiology ranks near the bottom in having the lowest proportion of full-time female faculty members. Despite many efforts to recruit talented women, the pipeline entering the radiologic disciplines continues to flow at a trickle. One factor is the relative lack of role models for female medical students. Entrepreneurial women in radiology can lead the field with their innovation and creativity, courage, and commitment. In this article, the authors highlight two entrepreneurial female radiologists who shared their success stories at the American Association for Women Radiologists' session at the 2015 ACR annual meeting. Their successes underscore the potential for such women to serve as role models to female medical students and even college undergraduates. Despite the gender gap in radiology, the field has yielded some exceptional women who can take on challenges, overcome barriers and assume risks, create strategies and processes to operationalize their visions, secure funding, and expand their enterprises to make sustainable impacts both at home and abroad. As we move toward more patient- and family-centered care models and become increasingly visible to diverse populations, there is no better time for female leaders in radiology to inspire the next generation to join our essential and rewarding specialty. Copyright © 2016 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  17. Duckweed (Lemna minor as a model plant system for the study of human microbial pathogenesis.

    Directory of Open Access Journals (Sweden)

    Yong Zhang

    Full Text Available BACKGROUND: Plant infection models provide certain advantages over animal models in the study of pathogenesis. However, current plant models face some limitations, e.g., plant and pathogen cannot co-culture in a contained environment. Development of such a plant model is needed to better illustrate host-pathogen interactions. METHODOLOGY/PRINCIPAL FINDINGS: We describe a novel model plant system for the study of human pathogenic bacterial infection on a large scale. This system was initiated by co-cultivation of axenic duckweed (Lemna minor plants with pathogenic bacteria in 24-well polystyrene cell culture plate. Pathogenesis of bacteria to duckweed was demonstrated with Pseudomonas aeruginosa and Staphylococcus aureus as two model pathogens. P. aeruginosa PAO1 caused severe detriment to duckweed as judged from inhibition to frond multiplication and chlorophyll formation. Using a GFP-marked PAO1 strain, we demonstrated that bacteria colonized on both fronds and roots and formed biofilms. Virulence of PAO1 to duckweed was attenuated in its quorum sensing (QS mutants and in recombinant strains overexpressing the QS quenching enzymes. RN4220, a virulent strain of S. aureus, caused severe toxicity to duckweed while an avirulent strain showed little effect. Using this system for antimicrobial chemical selection, green tea polyphenols exhibited inhibitory activity against S. aureus virulence. This system was further confirmed to be effective as a pathogenesis model using a number of pathogenic bacterial species. CONCLUSIONS/SIGNIFICANCE: Our results demonstrate that duckweed can be used as a fast, inexpensive and reproducible model plant system for the study of host-pathogen interactions, could serve as an alternative choice for the study of some virulence factors, and could also potentially be used in large-scale screening for the discovery of antimicrobial chemicals.

  18. Improving student success using predictive models and data visualisations

    Directory of Open Access Journals (Sweden)

    Hanan Ayad

    2012-08-01

    Full Text Available The need to educate a competitive workforce is a global problem. In the US, for example, despite billions of dollars spent to improve the educational system, approximately 35% of students never finish high school. The drop rate among some demographic groups is as high as 50–60%. At the college level in the US only 30% of students graduate from 2-year colleges in 3 years or less and approximately 50% graduate from 4-year colleges in 5 years or less. A basic challenge in delivering global education, therefore, is improving student success. By student success we mean improving retention, completion and graduation rates. In this paper we describe a Student Success System (S3 that provides a holistic, analytical view of student academic progress.1 The core of S3 is a flexible predictive modelling engine that uses machine intelligence and statistical techniques to identify at-risk students pre-emptively. S3 also provides a set of advanced data visualisations for reaching diagnostic insights and a case management tool for managing interventions. S3's open modular architecture will also allow integration and plug-ins with both open and proprietary software. Powered by learning analytics, S3 is intended as an end-to-end solution for identifying at-risk students, understanding why they are at risk, designing interventions to mitigate that risk and finally closing the feedback look by tracking the efficacy of the applied intervention.

  19. Preparing for success: Readiness models for rural telehealth

    Directory of Open Access Journals (Sweden)

    Jennett P

    2005-01-01

    Full Text Available Background: Readiness is an integral and preliminary step in the successful implementation of telehealth services into existing health systems within rural communities. Methods and Materials: This paper details and critiques published international peer-reviewed studies that have focused on assessing telehealth readiness for rural and remote health. Background specific to readiness and change theories is provided, followed by a critique of identified telehealth readiness models, including a commentary on their readiness assessment tools. Results: Four current readiness models resulted from the search process. The four models varied across settings, such as rural outpatient practices, hospice programs, rural communities, as well as government agencies, national associations, and organizations. All models provided frameworks for readiness tools. Two specifically provided a mechanism by which communities could be categorized by their level of telehealth readiness. Discussion: Common themes across models included: an appreciation of practice context, strong leadership, and a perceived need to improve practice. Broad dissemination of these telehealth readiness models and tools is necessary to promote awareness and assessment of readiness. This will significantly aid organizations to facilitate the implementation of telehealth.

  20. Habitat fragmentation and reproductive success: a structural equation modelling approach.

    Science.gov (United States)

    Le Tortorec, Eric; Helle, Samuli; Käyhkö, Niina; Suorsa, Petri; Huhta, Esa; Hakkarainen, Harri

    2013-09-01

    1. There is great interest on the effects of habitat fragmentation, whereby habitat is lost and the spatial configuration of remaining habitat patches is altered, on individual breeding performance. However, we still lack consensus of how this important process affects reproductive success, and whether its effects are mainly due to reduced fecundity or nestling survival. 2. The main reason for this may be the way that habitat fragmentation has been previously modelled. Studies have treated habitat loss and altered spatial configuration as two independent processes instead of as one hierarchical and interdependent process, and therefore have not been able to consider the relative direct and indirect effects of habitat loss and altered spatial configuration. 3. We investigated how habitat (i.e. old forest) fragmentation, caused by intense forest harvesting at the territory and landscape scales, is associated with the number of fledged offspring of an area-sensitive passerine, the Eurasian treecreeper (Certhia familiaris). We used structural equation modelling (SEM) to examine the complex hierarchical associations between habitat loss and altered spatial configuration on the number of fledged offspring, by controlling for individual condition and weather conditions during incubation. 4. Against generally held expectations, treecreeper reproductive success did not show a significant association with habitat fragmentation measured at the territory scale. Instead, our analyses suggested that an increasing amount of habitat at the landscape scale caused a significant increase in nest predation rates, leading to reduced reproductive success. This effect operated directly on nest predation rates, instead of acting indirectly through altered spatial configuration. 5. Because habitat amount and configuration are inherently strongly collinear, particularly when multiple scales are considered, our study demonstrates the usefulness of a SEM approach for hierarchical partitioning

  1. Socio-ecological Model as a Framework for Overcoming Barriers and Challenges in Randomized Control Trials in Minority and Underserved Communities

    Directory of Open Access Journals (Sweden)

    Hamisu M. Salihu, MD, PhD

    2015-03-01

    Full Text Available Background: Numerous barriers and challenges can hinder the successful enrollment and retention of study participants in clinical trials targeting minority populations. To conduct quality research, it is important to investigate these challenges, determine appropriate strategies that are evidence-based and continue seeking methods of improvement. Methods: In this paper, we report such experiences in a registered clinical trial in an underserved minority population in the Southern part of United States. This research study is a randomized doubleblind controlled clinical trial that tests the efficacy of higher-strength as compared to low-strength/standard of care folic acid to prevent fetal body and brain size reduction in pregnant women who smoke. A unique approach in this socio-behavioral, genetic-epigenetic clinical trial is that we have adopted the socio-ecological model as a functional platform to effectively achieve and maintain high participant recruitment and retention rates. Results: We highlight the barriers we have encountered in our trial and describe how we have successfully applied the socio-ecological model to overcome these obstacles. Conclusions and Global Health Implications: Our positive experience will be of utility to other researchers globally. Our findings have far-reaching implications as the socio-ecological model approach is adaptable to developed and developing regions and has the potential to increase recruitment and retention of hard-to-reach populations who are typically under-represented in clinical trials.

  2. Development of a Minor Histocompatibility Antigen Vaccine Regimen in the Canine Model of Hematopoietic Cell Transplantation.

    Science.gov (United States)

    Rosinski, Steven Lawrence; Stone, Brad; Graves, Scott S; Fuller, Deborah H; De Rosa, Stephen C; Spies, Gregory A; Mize, Gregory J; Fuller, James T; Storb, Rainer

    2015-10-01

    Minor histocompatibility antigen (miHA) vaccines have the potential to augment graft-versus-tumor effects without graft-versus-host disease (GVHD). We used mixed hematopoietic chimerism in the canine model of major histocompatibility complex-matched allogeneic hematopoietic cell transplantation as a platform to develop a miHA vaccination regimen. We engineered DNA plasmids and replication-deficient human adenovirus type 5 constructs encoding large sections of canine SMCY and the entire canine SRY gene. Priming with replication-deficient human adenovirus type 5 constructs and boosting with ex vivo plasmid-transfected dendritic cells and cutaneous delivery of plasmids with a particle-mediated epidermal delivery device (PMED) in 2 female dogs induced antigen-specific T-cell responses. Similar responses were observed after a prime-boost vaccine regimen in three female hematopoietic cell transplantation donors. Subsequent donor lymphocyte infusion resulted in a significant change of chimerism in 1 of 3 male recipients without any signs of graft-versus-host disease. The change in chimerism in the recipient occurred in association with the development of CD4+ and CD8+ T-cell responses to the same peptide pools detected in the donor. These studies describe the first in vivo response to miHA vaccination in a large, outbred animal model without using recipient cells to sensitize the donor. This model provides a platform for ongoing experiments designed to define optimal miHA targets and develop protocols to directly vaccinate the recipient.

  3. Latino Definitions of Success: A Cultural Model of Intercultural Competence.

    Science.gov (United States)

    Torres, Lucas

    2009-01-01

    The present study sought to examine Latino intercultural competence via two separate methodologies. Phase 1 entailed discovering and generating themes regarding the features of intercultural competence based on semistructured interviews of 15 Latino adults. Phase 2 included conducting a cultural consensus analysis from the quantitative responses of 46 Latino adults to determine the cultural model of intercultural competence. The major results indicated that the participants, despite variations in socioeconomic and generational statuses, shared a common knowledge base regarding the competencies needed for Latinos to successfully navigate different cultures. Overall, the cultural model of Latino intercultural competence includes a set of skills that integrates traditional cultural values along with attributes of self-efficacy. The findings are discussed within a competence-based conceptualization of cultural adaptation and potential advancements in acculturation research.

  4. Successes and shortcomings of polio eradication: a transmission modeling analysis.

    Science.gov (United States)

    Mayer, Bryan T; Eisenberg, Joseph N S; Henry, Christopher J; Gomes, M Gabriela M; Ionides, Edward L; Koopman, James S

    2013-06-01

    Polio eradication is on the cusp of success, with only a few regions still maintaining transmission. Improving our understanding of why some regions have been successful and others have not will help with both global eradication of polio and development of more effective vaccination strategies for other pathogens. To examine the past 25 years of eradication efforts, we constructed a transmission model for wild poliovirus that incorporates waning immunity (which affects both infection risk and transmissibility of any resulting infection), age-mediated vaccination rates, and transmission of oral polio vaccine. The model produces results consistent with the 4 country categories defined by the Global Polio Eradication Program: elimination with no subsequent outbreaks; elimination with subsequent transient outbreaks; elimination with subsequent outbreaks and transmission detected for more than 12 months; and endemic polio transmission. Analysis of waning immunity rates and oral polio vaccine transmissibility reveals that higher waning immunity rates make eradication more difficult because of increasing numbers of infectious adults, and that higher oral polio vaccine transmission rates make eradication easier as adults become reimmunized. Given these dynamic properties, attention should be given to intervention strategies that complement childhood vaccination. For example, improvement in sanitation can reduce the reproduction number in problematic regions, and adult vaccination can lower adult transmission.

  5. Development of Groundwater Modeling Capacity in Mongolia: Keys to Success

    Science.gov (United States)

    Anderson, M. T.; Valder, J. F.; Carter, J. M.

    2015-12-01

    Ulaanbaatar, the capital city of Mongolia, is totally dependent on groundwater for its municipal and industrial water supply. Water is drawn from a network of shallow wells in an alluvial aquifer along the Tuul River. Evidence, however, suggests that current water use and especially the projected water demand from a rapidly growing urban population, is not sustainable from existing water sources. In response, the Mongolia Ministry of Environment and the Mongolian Fresh Water Institute requested technical assistance on groundwater modeling through the U.S. Army Corps of Engineers to the U.S. Geological Survey (USGS). Scientists from the USGS-SD Water Science Center provided a workshop to Mongolian water experts on basic principles of groundwater modeling using MODFLOW. The purpose of the workshop was to bring together representatives from the Government of Mongolia, local universities, technical experts, and other key stakeholders to build in-country capacity in hydrogeology and groundwater modeling. A preliminary steady-state groundwater flow model was developed to simulate groundwater conditions in the Tuul River Basin and for use in water use decision-making. The model consisted of 2 layers, 226 rows, and 260 columns with uniform 500 meter grid spacing. The upper model layer represented the alluvial aquifer and the lower layer represented the underlying bedrock, which includes areas characterized by permafrost. Estimated groundwater withdrawal was 180 m3/day, and estimated recharge was 114 mm/yr. The model will be modified and updated by Mongolian scientists as more data are available. Ultimately the model will be used to assist managers in developing a sustainable water supply, for current use and changing climate scenarios. A key to success was developing in-country technical capacity and partnerships with the Mongolian University of Science and Technology, Mongolian Freshwater Institute, a non-profit organization, UNESCO, and the government of Mongolia.

  6. Modeling the interaction of light intensity, nutrient concentration and uranium toxicity in Lemna minor

    Energy Technology Data Exchange (ETDEWEB)

    Zimmer, E.; Horemans, N.; Vandenhove, H. [Belgian Nuclear Research Centre SCK-CEN (Belgium); Cedergreen, N. [University of Copenhagen (Denmark); Jager, T. [Vrije Universiteit Amsterdam (Netherlands)

    2014-07-01

    Radioecology aims at assessing the effect of radionuclides and radiation on the environment. Since we cannot test every possible environmental situation in the laboratory, we need modeling approaches to extrapolate the results of toxicity assays to environmentally relevant scenarios. Therefore, it is of crucial importance to understand the effect of relevant environmental factors, such as nutrients, temperature and light on the toxicity of the test. Radionuclides are often found to induce the production of reactive oxygen species (ROS). In plants, an overload of ROS can lead to disturbances of the photosynthetic system. Since the light intensity determines the efficiency of the photo-systems in plants, it can be expected to interact with the effect of radionuclides. The nutrient concentration of the test medium determines the physiological state of the plant, affecting in turn the plant's capability of dealing with stress and hence influences the toxicity of the contaminant. To study the interaction of stressors with environmental conditions, mechanistic effect modeling is promoted widely in ecotoxicology. In principle, the modelling aims at a mechanistic understanding of the different processes causing the stress individually, and integrating them in one framework to study their joint effect and possible interaction. We here present a mechanistic effect model for Lemna minor (common duckweed), which is based on Dynamic Energy Budget (DEB) theory. Models based on DEB have been used widely to study the effects of compounds on animals. Due to its general applicability to all types of organisms, it holds potential to be used for comparison of species and compounds in a broad context. Energy uptake from the environment is modeled explicitly, and metabolic rates are set to depend on temperature in DEB models. Therefore, they can be used to extrapolate effects to a wide range of environmentally relevant scenarios. Until now, the DEB research in ecotoxicology has

  7. Validation of the internalization of the Model Minority Myth Measure (IM-4) and its link to academic performance and psychological adjustment among Asian American adolescents.

    Science.gov (United States)

    Yoo, Hyung Chol; Miller, Matthew J; Yip, Pansy

    2015-04-01

    There is limited research examining psychological correlates of a uniquely racialized experience of the model minority stereotype faced by Asian Americans. The present study examined the factor structure and fit of the only published measure of the internalization of the model minority myth, the Internalization of the Model Minority Myth Measure (IM-4; Yoo et al., 2010), with a sample of 155 Asian American high school adolescents. We also examined the link between internalization of the model minority myth types (i.e., myth associated with achievement and myth associated with unrestricted mobility) and psychological adjustment (i.e., affective distress, somatic distress, performance difficulty, academic expectations stress), and the potential moderating effect of academic performance (cumulative grade point average). Results suggested the 2-factor model of the IM-4 had an acceptable fit to the data and supported the factor structure using confirmatory factor analyses. Internalizing the model minority myth of achievement related positively to academic expectations stress; however, internalizing the model minority myth of unrestricted mobility related negatively to academic expectations stress, both controlling for gender and academic performance. Finally, academic performance moderated the model minority myth associated with unrestricted mobility and affective distress link and the model minority myth associated with achievement and performance difficulty link. These findings highlight the complex ways in which the model minority myth relates to psychological outcomes.

  8. Successes and Challenges Porting Weather and Climate Models to GPUs

    Science.gov (United States)

    Govett, M. W.; Middlecoff, J.; Henderson, T. B.; Rosinski, J.; Madden, P.

    2011-12-01

    NOAA ESRL has had significant success parallelizing and running the Non-Hydrostatic Icosahedral Model (NIM) dynamical core on GPUs. A key ingredient in the success was the development of our Fortran-to-CUDA compiler (called F2C-ACC) to convert the model code. Compiler directives, inserted by the user, define regions of code to be run on the GPU, identify where fine-grain parallelism can be exploited, and manage data transfers between CPU and GPU. In 2009, we demonstrated that our compiler, with limited analysis capabilities, was able to produce code that ran the NIM 25x faster on a single GPU than a similar generation CPU. As F2C-ACC matured, fewer hand-translations were required until the GPU parallelization of NIM became fully automatic. The usefulness of F2C-ACC as a language translation tool will diminish as commercial compilers from CAPS, PGI and Cray mature; however, porting codes to GPUs will continue to require significant user involvement due to limited tools to support parallelization. Code inspection and analysis is currently very challenging and requires heavy user involvement to parallelize, debug, and achieve respectable speedup on GPUs. Users must inspect their code to locate fine grain parallelism, determine performance bottlenecks, manage data transfers, identify data dependencies, place inter-GPU communications, and manage a myriad of other issues in porting CPU-based codes to GPU architectures. This talk will describe the F2C-ACC compiler, discuss code porting challenges, and describe further development of the analysis capabilities of F2C-ACC to improve GPU parallelization of Fortran-based, Numerical Weather Prediction codes.

  9. A Successive Selection Method for finite element model updating

    Science.gov (United States)

    Gou, Baiyong; Zhang, Weijie; Lu, Qiuhai; Wang, Bo

    2016-03-01

    Finite Element (FE) model can be updated effectively and efficiently by using the Response Surface Method (RSM). However, it often involves performance trade-offs such as high computational cost for better accuracy or loss of efficiency for lots of design parameter updates. This paper proposes a Successive Selection Method (SSM), which is based on the linear Response Surface (RS) function and orthogonal design. SSM rewrites the linear RS function into a number of linear equations to adjust the Design of Experiment (DOE) after every FE calculation. SSM aims to interpret the implicit information provided by the FE analysis, to locate the Design of Experiment (DOE) points more quickly and accurately, and thereby to alleviate the computational burden. This paper introduces the SSM and its application, describes the solution steps of point selection for DOE in detail, and analyzes SSM's high efficiency and accuracy in the FE model updating. A numerical example of a simply supported beam and a practical example of a vehicle brake disc show that the SSM can provide higher speed and precision in FE model updating for engineering problems than traditional RSM.

  10. A Critical Review of the Model Minority Myth in Selected Literature on Asian Americans and Pacific Islanders in Higher Education

    Science.gov (United States)

    Poon, OiYan; Squire, Dian; Kodama, Corinne; Byrd, Ajani; Chan, Jason; Manzano, Lester; Furr, Sara; Bishundat, Devita

    2016-01-01

    This article presents a critical review of 112 works of research on Asian Americans and Pacific Islanders (AAPIs) in higher education. It focuses on ways previous scholarship framed AAPIs in higher education, and specifically on how those works engaged in a sustained project of countering the model minority myth (MMM). Many publications on AAPIs…

  11. Asian and Pacific Islander Women Scientists and Engineers: A Narrative Exploration of Model Minority, Gender, and Racial Stereotypes.

    Science.gov (United States)

    Chinn, Pauline W. U.

    2002-01-01

    Uses narrative methodology in a qualitative study to understand what becoming a scientist or engineer entails for women stereotyped as model minorities. Narratives revealed that Confucian cultural scripts shaped gender expectations even in families several generations in America. (Author/MM)

  12. Monte Carlo Modeling of Minor Actinide Burning in Fissile Spallation Targets

    Science.gov (United States)

    Malyshkin, Yury; Pshenichnov, Igor; Mishustin, Igor; Greiner, Walter

    2014-06-01

    Minor actinides (MA) present a harmful part of spent nuclear fuel due to their long half-lives and high radio-toxicity. Neutrons produced in spallation targets of Accelerator Driven Systems (ADS) can be used to transmute and burn MA. Non-fissile targets are commonly considered in ADS design. However, additional neutrons from fission reactions can be used in targets made of fissile materials. We developed a Geant4-based code MCADS (Monte Carlo model for Accelerator Driven Systems) for simulating neutron production and transport in different spallation targets. MCADS is suitable for calculating spatial distributions of neutron flux and energy deposition, neutron multiplication factors and other characteristics of produced neutrons and residual nuclei. Several modifications of the Geant4 source code described in this work were made in order to simulate targets containing MA. Results of MCADS simulations are reported for several cylindrical targets made of U+Am, Am or Am2O3 including more complicated design options with a neutron booster and a reflector. Estimations of Am burning rates are given for the considered cases.

  13. Minority-spin dynamics in the nonhomogeneous Ising model: Diverging time scales and exponents

    Science.gov (United States)

    Mullick, Pratik; Sen, Parongama

    2016-05-01

    We investigate the dynamical behavior of the Ising model under a zero-temperature quench with the initial fraction of up spins 0 ≤x ≤1 . In one dimension, the known results for persistence probability are verified; it shows algebraic decay for both up and down spins asymptotically with different exponents. It is found that the conventional finite-size scaling is valid here. In two dimensions, however, the persistence probabilities are no longer algebraic; in particular for x ≤0.5 , persistence for the up (minority) spins shows the behavior Pmin(t ) ˜t-γexp[-(t/τ ) δ] with time t , while for the down (majority) spins, Pmaj(t ) approaches a finite value. We find that the timescale τ diverges as (xc-x ) -λ, where xc=0.5 and λ ≃2.31 . The exponent γ varies as θ2 d+c0(xc-x ) β where θ2 d≃0.215 is very close to the persistence exponent in two dimensions; β ≃1 . The results in two dimensions can be understood qualitatively by studying the exit probability, which for different system size is found to have the form E (x ) =f [(x/-xc xc) L1 /ν] , with ν ≈1.47 . This result suggests that τ ˜Lz ˜ , where z ˜=λ/ν =1.57 ±0.11 is an exponent not explored earlier.

  14. MUICYCL and MUIFAP: models tracking minor uranium isotopes in the nuclear fuel cycle

    Energy Technology Data Exchange (ETDEWEB)

    Blum, S.R.; McLaren, R.A.

    1979-10-01

    Two computer programs have been written to provide information on the buildup of minor uranium isotopes in the nuclear fuel cycle. The Minor Uranium Isotope Cycle Program, MUICYCL, tracks fuel through a multiyear campaign cycle of enrichment, reactor burnup, reprocessing, enrichment, etc. MUICYCL facilities include preproduction stockpiles, U/sup 235/ escalation, and calculation of losses. The Minor Uranium Isotope Flowsheet Analyzer Program, MUIFAP, analyzes one minor isotope in one year of an enrichment operation. The formulation of the enrichment cascade, reactors, and reprocessing facility is presented. Input and output descriptions and sample cases are presented. The programs themselves are documented by short descriptions of each routine, flowcharts, definitions of common blocks and variables, and internal documentation. The programs are written in FORTRAN for use in batch mode.

  15. The National Model for Minority Education and Training Demonstration (NMMETD) Case Study

    Science.gov (United States)

    NMMETD targeted minority and indigent residents by educating homeowners about the management of onsite systems and assisting residents with funding options for managing, installing, and disseminating information about onsite wastewater systems.

  16. Understanding HIV Testing Behaviors of Minority Adolescents: A Health Behavior Model Analysis

    OpenAIRE

    Schnall, Rebecca; Rojas, Marlene; Travers, Jasmine

    2014-01-01

    Adolescents and young adults are the fastest-growing age group of people living with HIVinfection in the United States. Yet many adolescents and young adults with high-risk behaviors for HIV are unaware of their HIV status and have never had an HIV test. The purpose of our work was to understand minority adolescents’ beliefs, attitudes, and behaviors related to HIV testing. We conducted focus group sessions with 41 minority adolescents to assess their perceptions about HIV testing. We triangu...

  17. Characteristics of successful opinion leaders in a bounded confidence model

    Science.gov (United States)

    Chen, Shuwei; Glass, David H.; McCartney, Mark

    2016-05-01

    This paper analyses the impact of competing opinion leaders on attracting followers in a social group based on a bounded confidence model in terms of four characteristics: reputation, stubbornness, appeal and extremeness. In the model, reputation differs among leaders and normal agents based on the weights assigned to them, stubbornness of leaders is reflected by their confidence towards normal agents, appeal of the leaders is represented by the confidence of followers towards them, and extremeness is captured by the opinion values of leaders. Simulations show that increasing reputation, stubbornness or extremeness makes it more difficult for the group to achieve consensus, but increasing the appeal will make it easier. The results demonstrate that successful opinion leaders should generally be less stubborn, have greater appeal and be less extreme in order to attract more followers in a competing environment. Furthermore, the number of followers can be very sensitive to small changes in these characteristics. On the other hand, reputation has a more complicated impact: higher reputation helps the leader to attract more followers when the group bound of confidence is high, but can hinder the leader from attracting followers when the group bound of confidence is low.

  18. Business Models for Successfully Maintaining Games for Health.

    Science.gov (United States)

    Baranowski, Moderator Tom; Isaac, Participants Fikry; Ashford, Chris; Goldman, Ron; Lenihan, David J; Poole, Brent; Buday, Richard; van Rijswijk, Jurriaan

    2013-04-01

    Videogames for health provide innovative, exciting, and possibly highly effective new media for helping players change their behaviors or otherwise benefit their health. Getting the right videogames into the hands of players who can benefit most in a way that pays for the continued innovation and creation of such games is a current challenge. Entertainment videogame companies, which create games primarily to enhance players' enjoyment, have used the general business marketplace (e.g., online stores, walk-in stores, app stores) to deliver their products directly to consumers and earn enough capital to invest in making new products. No one believes, however, that enough kids or adults would use the general business marketplace to purchase games for health in sufficient volume to provide the down payment for the innovation and creation of new games for health. A successful business model is critical to the financial future of games for health. We asked members of our Editorial Board who are in health-related companies (Fikry Isaac, MD, MPH), in several game development companies (Chris Ashford, Ron Goldman, David J. Lenihan, Brent Poole, and Richard Buday, FAIA), and the head of the Games for Health Europe Foundation (Jurriaan van Rijswijk, MSc) to address questions in a roundtable about the current and possible future business models for games for health.

  19. Development of an Electronic Portfolio System Success Model: An Information Systems Approach

    Science.gov (United States)

    Balaban, Igor; Mu, Enrique; Divjak, Blazenka

    2013-01-01

    This research has two main goals: to develop an instrument for assessing Electronic Portfolio (ePortfolio) success and to build a corresponding ePortfolio success model using DeLone and McLean's information systems success model as the theoretical framework. For this purpose, we developed an ePortfolio success measurement instrument and structural…

  20. A Model of Organizational Context and Shared Decision Making: Application to LGBT Racial and Ethnic Minority Patients.

    Science.gov (United States)

    DeMeester, Rachel H; Lopez, Fanny Y; Moore, Jennifer E; Cook, Scott C; Chin, Marshall H

    2016-06-01

    Shared decision making (SDM) occurs when patients and clinicians work together to reach care decisions that are both medically sound and responsive to patients' preferences and values. SDM is an important tenet of patient-centered care that can improve patient outcomes. Patients with multiple minority identities, such as sexual orientation and race/ethnicity, are at particular risk for poor SDM. Among these dual-minority patients, added challenges to clear and open communication include cultural barriers, distrust, and a health care provider's lack of awareness of the patient's minority sexual orientation or gender identity. However, organizational factors like a culture of inclusion and private space throughout the visit can improve SDM with lesbian, gay, bisexual, and transgender ("LGBT") racial/ethnic minority patients who have faced stigma and discrimination. Most models of shared decision making focus on the patient-provider interaction, but the health care organization's context is also critical. Context-an organization's structure and operations-can strongly influence the ability and willingness of patients and clinicians to engage in shared decision making. SDM is most likely to be optimal if organizations transform their contexts and patients and providers improve their communication. Thus, we propose a conceptual model that suggests ways in which organizations can shape their contextual structure and operations to support SDM. The model contains six drivers: workflows, health information technology, organizational structure and culture, resources and clinic environment, training and education, and incentives and disincentives. These drivers work through four mechanisms to impact care: continuity and coordination, the ease of SDM, knowledge and skills, and attitudes and beliefs. These mechanisms can activate clinicians and patients to engage in high-quality SDM. We provide examples of how specific contextual changes could make SDM more effective for LGBT

  1. Identifying second language speech tasks and ability levels for successful nurse oral interaction with patients in a linguistic minority setting: an instrument development project.

    Science.gov (United States)

    Isaacs, Talia; Laurier, Michel D; Turner, Carolyn E; Segalowitz, Norman

    2011-09-01

    One of the most demanding situations for members of linguistic minorities is a conversation between a health professional and a patient, a situation that frequently arises for linguistic minority groups in North America, Europe, and elsewhere. The present study reports on the construction of an oral interaction scale for nurses serving linguistic minorities in their second language (L2). A mixed methods approach was used to identify and validate a set of speech activities relating to nurse interactions with patients and to derive the L2 ability required to carry out those tasks. The research included an extensive literature review, the development of an initial list of speech tasks, and validation of this list with a nurse focus group. The retained speech tasks were then developed into a questionnaire and administered to 133 Quebec nurses who assessed each speech task for difficulty in an L2 context. Results were submitted to Rasch analysis and calibrated with reference to the Canadian Language Benchmarks, and the constructs underlying the speech tasks were identified through exploratory and confirmatory factor analyses. Results showed that speech tasks dealing with emotional aspects of caregiving and conveying health-specific information were reported as being the most demanding in terms of L2 ability, and the most strongly associated with L2 ability required for nurse-patient interactions. Implications are discussed with respect to the development and use of assessment instruments to facilitate L2 workplace training for health care professionals.

  2. Semivarying coefficient models for capture-recapture data: colony size estimation for the little penguin Eudyptula minor.

    Science.gov (United States)

    Stoklosa, Jakub; Dann, Peter; Huggins, Richard

    2014-09-01

    To accommodate seasonal effects that change from year to year into models for the size of an open population we consider a time-varying coefficient model. We fit this model to a capture-recapture data set collected on the little penguin Eudyptula minor in south-eastern Australia over a 25 year period using Jolly-Seber type estimators and nonparametric P-spline techniques. The time-varying coefficient model identified strong changes in the seasonal pattern across the years which we further examined using functional data analysis techniques. To evaluate the methodology we also conducted several simulation studies that incorporate seasonal variation.

  3. Social Media Success for Academic Knowledge Sharing in Indonesia (Conceptual Model Development)

    Science.gov (United States)

    Assegaff, Setiawan

    2017-04-01

    The aim of this study is to investigate how success is the social media as a tool for knowledge sharing among scholars in Indonesia. To evaluate the success of social media we develop a model base on Delone and McLeane IS Success Model. In this article, we would like discuss the process of developing the research model. In developing the model, we conduct literature review from knowledge management, social media and IS Success Model area from previous study. This study resulted in the social success model for academic knowledge sharing in Indonesia.

  4. Geo-Needs: Investigating Models for Improved Access to Geosciences at Two-Year and Minority-Serving Colleges

    Science.gov (United States)

    Her, X.; Turner, S. P.; LaDue, N.; Bentley, A. P.; Petcovic, H. L.; Mogk, D. W.; Cartwright, T.

    2015-12-01

    Geosciences are an important field of study for the future of energy, water, climate resilience, and infrastructure in our country. Geoscience related job growth is expected to steeply climb in the United States, however many of these positions will be left unfilled. One untapped population of Americans is ethnic minorities, who have historically been underrepresented in the geosciences. In 2010, the Bureau of Labor Statistics (BLS) reported that black and Hispanics only make 8.1% of geoscience related jobs, while making up nearly 30% of Americans. This pattern of underrepresentation has been attributed to 1) minority serving institutions lacking geoscience programs, 2) low interest in the outdoors due to a lack of opportunity, and 3) negative and low prestigious perceptions of geoscientists. Our project focuses specifically on the first barrier. Preliminary research suggests that only 2.5% of institutions with geoscience programs (n= 609) are also minority serving. The goals of the Geo-Needs project are to identify obstacles to and opportunities for better use of existing educational resources in two-year and minority-serving institutions, and to explore "ideal" models of resources, partnerships, and other support for geoscience faculty and students in these institutions. Four focus group meetings were held in August 2015 bringing administrators, instructors, resource providers, and education researchers together to discuss and develop these models. Activities at the meetings included small and whole group prompted discussion, guest speakers, gallery walks, and individual reflection. Content from the focus group meetings is available at the project's website: http://serc.carleton.edu/geoneeds/index.html. Findings from the meetings can be used to inform future efforts aimed toward broadening access to the geosciences at two-year and minority-serving institutions.

  5. Africa's Great Green Wall Initiative: a model for restoration success

    Science.gov (United States)

    Berrahmouni, Nora; Sacande, Moctar

    2014-05-01

    The Great Green Wall for the Sahara and the Sahel Initiative was launched to address the increasing challenges of land degradation, desertification and drought, climate change, food insecurity and poverty in more than 20 countries. Restoration of agro-sylvo-pastoral landscapes and degraded lands is one of the priority interventions initiated, enabling the springing up of green nests of life. When complete, the Great Green Wall of Africa will reverse the seemingly unstoppable desertification and address the development of its drylands' inhabitant rural communities. Today's planting of modest seedlings will grow into vast mosaics of forest and agroforestry landscapes and grasslands, which will provide essential ecosystem goods and services, restore lost livelihoods and create new wealth. The ambition of reforestation efforts within this initiative - the like of which the world has never seen before - sounds like an impossible dream. However, learning from past mistakes and capitalising on current advancement in science and technology, it is a reality that is taking root. Following a successful restoration model that RBG Kew experts have devised, we are helping to mobilise, train and support communities in four border regions in Burkina Faso, Mali and Niger. In collaboration with FAO, the Millennium Seed Bank Partnership is using its unique expertise to ensure that seeds of environmentally well-adapted and economically useful local species are collected and planted in communal gardens and village agroforestry systems managed by the communities themselves. In our first year, an estimated total of 162,000 seedlings and 61 kg of seeds from 40 useful native species, including grasses for livestock, have been planted to cover 237 ha of farmer-managed land in 19 villages. The keen interest it has created has indicated that these figures will rise five-fold in the second year. These green bricks are the foundations of the living wall that will eventually reach across the

  6. Transgender Individuals' Workplace Experiences: The Applicability of Sexual Minority Measures and Models

    Science.gov (United States)

    Brewster, Melanie E.; Velez, Brandon; DeBlaere, Cirleen; Moradi, Bonnie

    2012-01-01

    The present study explored whether 3 existing measures of workplace constructs germane to the experiences of sexual minority people could be modified to improve their applicability with transgender individuals. To this end, the Workplace Heterosexist Experiences Questionnaire (WHEQ; C. R. Waldo, 1999); the Lesbian, Gay, Bisexual, and Transgendered…

  7. An Australian Model of Successful School Leadership: Moving from Success to Sustainability

    Science.gov (United States)

    Drysdale, Lawrie; Goode, Helen; Gurr, David

    2009-01-01

    Purpose: This paper seeks to demonstrate how the principal was instrumental in turning around an underperforming school by using a leadership style that modelled appropriate behaviour, and which was consultative, conciliatory, inspirational and empathetic, through having a clearly articulated whole-child-focused educational philosophy, by building…

  8. Perspective: adopting an asset bundles model to support and advance minority students' careers in academic medicine and the scientific pipeline.

    Science.gov (United States)

    Johnson, Japera; Bozeman, Barry

    2012-11-01

    The authors contend that increasing diversity in academic medicine, science, technology, engineering, and mathematics requires the adoption of a systematic approach to retain minority high school and college students as they navigate the scientific pipeline. Such an approach should focus on the interrelated and multilayered challenges that these students face. The authors fuse an alternative conceptualization of the scientific and technical human capital theoretical framework and the theory of social identity contingencies to offer a conceptual model for targeting the critical areas in which minority students may need additional support to continue toward careers in science. Their proposed asset bundles model is grounded in the central premise that making greater progress in recruiting and retaining minorities likely requires institutions to respond simultaneously to various social cues that signal devaluation of certain identities (e.g., gender, race, socioeconomic status). The authors define "asset bundles" as the specific sets of abilities and resources individuals develop that help them succeed in educational and professional tasks, including but not limited to science and research. The model consists of five asset bundles, each of which is supported in the research literature as a factor relevant to educational achievement and, the authors contend, may lead to improved and sustained diversity: educational endowments, science socialization, network development, family expectations, and material resources. Using this framework, they suggest possible ways of thinking about the task of achieving diversity as well as guideposts for next steps. Finally, they discuss the feasibility of implementing such an approach.

  9. The business of emergency medicine: a model for success.

    Science.gov (United States)

    Proctor, John; Hall, Peter; Carr, Janet

    2004-02-01

    Today's EPOs and their physicians face an array of daunting challenges. Falling reimbursement, rising malpractice costs. ED and hospital crowding,and demands for improving ED efficiency and patient satisfaction all contribute to the challenging and sometimes threatening environment of EM practice. The EP involved in a busy and often hectic ED shift may feel unduly and unnecessarily distracted when required to continuously acknowledge and address the business aspect of the practice. Nevertheless,regardless of the size and structure, fiscal viability ultimately determines the EPO's ability to continue to offer access to care. This article contends that a comprehensive business strategy drives superior financial performance and supports the organization's mission. The business strategy must identify financial and non-financial determinants of the EPO's success and provide a mechanism for understanding how the organization's resources are converted to value for customers. The section offers a framework for developing this strategy, for identifying possible gaps or deficiencies, and for measuring and monitoring progress in achieving strategic objectives and ultimately, the EPO's mission. The importance of the mission and the dynamic EM environment require that the strategy development process be more than an annual exercise for the leadership of the organization. Though key leaders in any size EPO--set the course for the organization, the entire organization must be aware and understand the strategy before they commit themselves and adopt actions and behaviors that promote it. The model presented here provides a graphic display that lends itself well to consistent communication of a comprehensive strategy in a concise way throughout the organization.Furthermore, the balance of the model, across four perspectives, recognizes the value of balanced organizational objectives and lends itself well to the creation of a measurement system that supports cause and effect

  10. Hysteresis in single and polycrystalline iron thin films: Major and minor loops, first order reversal curves, and Preisach modeling

    Energy Technology Data Exchange (ETDEWEB)

    Cao, Yue; Xu, Ke [Materials Science and Engineering Program, Washington State University, Pullman, WA 99164 (United States); Jiang, Weilin; Droubay, Timothy; Ramuhalli, Pradeep; Edwards, Danny; Johnson, Bradley R. [Pacific Northwest National Laboratory, Richland, WA 99352 (United States); McCloy, John, E-mail: john.mccloy@wsu.edu [Materials Science and Engineering Program, Washington State University, Pullman, WA 99164 (United States); School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164 (United States)

    2015-12-01

    Hysteretic behavior was studied in a series of Fe thin films, grown by molecular beam epitaxy, having different grain sizes and grown on different substrates. Major and minor loops and first order reversal curves (FORCs) were collected to investigate magnetization mechanisms and domain behavior under different magnetic histories. The minor loop coefficient and major loop coercivity increase with decreasing grain size due to higher defect concentration resisting domain wall movement. First order reversal curves allowed estimation of the contribution of irreversible and reversible susceptibilities and switching field distribution. The differences in shape of the major loops and first order reversal curves are described using a classical Preisach model with distributions of hysterons of different switching fields, providing a powerful visualization tool to help understand the magnetization switching behavior of Fe films as manifested in various experimental magnetization measurements. - Highlights: • Iron thin films grown by molecular beam epitaxy (MBE) with different substrates and conditions. • Major and minor loops, first order reversal curves (FORCs) measured on same samples. • Parameters from various magnetic measurements compared and correlated. • Hysteresis modeling used to understand different switching field distributions caused by defects.

  11. Phytoremediation potential of duckweed (Lemna minor L.) in degradation of C.I. Acid Blue 92: artificial neural network modeling.

    Science.gov (United States)

    Khataee, A R; Movafeghi, A; Torbati, S; Salehi Lisar, S Y; Zarei, M

    2012-06-01

    In present study, the potential of duckweed (Lemna minor L.) for degradation of an azo dye C.I. Acid Blue 92 (AB92) has been investigated. The effect of operational parameters such as initial dye concentration, pH, temperature and amount of plant on the efficiency of biological decolorization process was determined. The reusability of Lemna minor L. in long term repetitive operations was also examined. Growth and some biochemical parameters (photosynthetic pigments content, superoxide dismutase, catalase and peroxidase activity) were used to detect the toxic effects of AB92 on duckweed plant. The biological degradation compounds formed in the present process were analyzed by GC-MS technique. In addition, an artificial neural network (ANN) model was expanded to predict the biological decolorization efficiency. The obtained data indicated that ANN provide realistic predictive performance (R(2)=0.954). Copyright © 2012 Elsevier Inc. All rights reserved.

  12. Communication for social inclusion of minorities. La Clase Mágica, an intervention model for social change

    Directory of Open Access Journals (Sweden)

    Mayra Martínez Avidad

    2016-07-01

    Full Text Available Cultural and ethnic minorities are typically among the socially and economically disadvantaged groups in most societies due to their lack of institutional representation. The aim of this paper is to propose an intervention model capable of increasing the participatory power of a minority group through sustained and strategically design interaction between them and representatives of the dominant groups in the society. The results of the case study of the socio-educational program La Clase Mágica, employing survey methods to collect data, shows that those elements contributes to develop key capabilities for the empowerment and social inclusion of the first and second generation Mexican origin immigrants in San Diego County. Furthermore, the results show that the program was a decisive factor in promoting community empowerment and voice in influencing social institutions in terms of external support.

  13. Hysteresis in single and polycrystalline iron thin films: Major and minor loops, first order reversal curves, and Preisach modeling

    Science.gov (United States)

    Cao, Yue; Xu, Ke; Jiang, Weilin; Droubay, Timothy; Ramuhalli, Pradeep; Edwards, Danny; Johnson, Bradley R.; McCloy, John

    2015-12-01

    Hysteretic behavior was studied in a series of Fe thin films, grown by molecular beam epitaxy, having different grain sizes and grown on different substrates. Major and minor loops and first order reversal curves (FORCs) were collected to investigate magnetization mechanisms and domain behavior under different magnetic histories. The minor loop coefficient and major loop coercivity increase with decreasing grain size due to higher defect concentration resisting domain wall movement. First order reversal curves allowed estimation of the contribution of irreversible and reversible susceptibilities and switching field distribution. The differences in shape of the major loops and first order reversal curves are described using a classical Preisach model with distributions of hysterons of different switching fields, providing a powerful visualization tool to help understand the magnetization switching behavior of Fe films as manifested in various experimental magnetization measurements.

  14. The Chi-Sci Scholars Program: Developing Community and Challenging Racially Inequitable Measures of Success at a Minority-Serving Institution on Chicago's Southside1

    Science.gov (United States)

    Sabella, Mel S.; Mardis, Kristy L.; Sanders, Nicolette; Little, Angela

    2017-09-01

    Ensuring that all students who want to pursue degrees and careers in science can do so is an important goal of a number of undergraduate STEM equity programs throughout the United States. Many of these programs, which promote diversity and the importance of diversity in science, directly address the 2012 PCAST report, which notes that "1 million additional STEM Professionals will be needed within the next decade" and "women and members of minority groups now constitute approximately 70% of college students, but earn only 45 percent of STEM degrees." The PCAST report also indicates that these students "leave STEM majors at higher rates than others and offer an expanding pool of untapped talent." Many of these programs recognize that it is important to provide students with a variety of support: financial, mentoring, research-based instruction, cohort development, and specific activities tailored to target population strengths and needs.

  15. Modelling the rate of secondary succession after farmland abandonment in a Mediterranean mountain area

    NARCIS (Netherlands)

    Beguería, S.; Pueyo, Y.

    2007-01-01

    Secondary succession after farmland abandonment has become a common process in north Mediterranean countries, especially in mountain areas. In this paper a methodology is tested which combines Markov chains and logistic multivariate regression to model secondary succession after farmland abandonment

  16. A partnership with minority populations: a community model of effectiveness research.

    Science.gov (United States)

    Levine, D M; Becker, D M; Bone, L R; Stillman, F A; Tuggle, M B; Prentice, M; Carter, J; Filippeli, J

    1992-01-01

    This paper describes a community-based approach, including a partnership of an academic medical institution and a high-risk, urban, African-American population, directed at decreasing premature morbidity and mortality and enhancing health and functional status. The intervention approach is based on a model of community-based leadership and "ownership" of interventions and programs to enhance sustainability of effective approaches, and it follows specific stages to assure appropriate assessment and evaluation. Initial efforts were directed at the control of hypertension and were coordinated through decentralized mayor's stations in Baltimore, Maryland. This approach was successful in significantly enhancing control of hypertension and reducing related morbidity and mortality. Over time, an enhanced partnership has been coordinated through churches in the community and organized around a program entitled "Heart, Body, and Soul." Current efforts are directed at the major risk factors and preventable and/or controllable problems in the population, such as hypertension, smoking, obesity, diabetes, hyperlipidemia, and cervical and breast cancer. Key components include the training of neighborhood health workers to provide screening, counseling, monitoring, support, and follow-up; enhanced access to care; training of high school students as health counselors; and use of media to promote healthier life-styles.

  17. Eliminating Behavioral Health Disparities and Improving Outcomes for Racial and Ethnic Minority Populations.

    Science.gov (United States)

    Sanchez, Katherine; Ybarra, Rick; Chapa, Teresa; Martinez, Octavio N

    2016-01-01

    Integrated care holds promise for reducing mental health disparities for racial and ethnic minority groups, but studies are lacking. The authors consider critical components of effective integrated models for minority populations, including cultural and linguistic competence and a diverse workforce, and describe emerging best practices. To successfully implement integrated models into practice with minority populations will require guidance from communities, consumers and family members, and national experts.

  18. Determinants of Business Success – Theoretical Model and Empirical Verification

    Directory of Open Access Journals (Sweden)

    Kozielski Robert

    2016-12-01

    Full Text Available Market knowledge, market orientation, learning competencies, and a business performance were the key issues of the research project conducted in the 2006 study. The main findings identified significant relationships between the independent variables (market knowledge, market orientation, learning competencies and the dependent variables (business success. A partial correlation analysis indicated that a business success primarily relies on organisational learning competencies. Organisational learning competencies, to a large extent (almost 60%, may be explained by the level of corporate market knowledge and market orientation. The aim of the paper is to evaluate to what extent the relationships between the variables are still valid. The research was based on primary and secondary data sources. The major field of the research was carried out in the form of quantitative studies. The results of the 2014 study are consistent with the previous (2006 results.

  19. A nurse manager succession planning model with associated empirical outcomes.

    Science.gov (United States)

    Titzer, Jennifer L; Shirey, Maria R; Hauck, Sheila

    2014-01-01

    Perceptions of leadership and management competency after a formal nurse manager succession planning program were evaluated. A lack of strategic workforce planning and development of a leadership pipeline contributes to a predicted nurse manager shortage. To meet the anticipated needs for future leadership, evidence-based action is critical. A quasi-experimental mixed-methods, 1-group pretest/posttest research design was used. Nurses working in an acute care hospital were recruited for the study and selected using an objective evaluative process. Participant perceptions regarding their leadership and management competencies significantly increased after the leadership program. Program evaluations confirmed that participants found the program beneficial. One year after program completion, 100% of the program participants have been retained at the organization and 73% had transitioned to leadership roles. Succession planning and leadership development serve as beneficial and strategic mechanisms for identifying and developing high-potential individuals for leadership positions, contributing toward the future nursing leadership pipeline.

  20. The Quantum Atomic Model "Electronium": A Successful Teaching Tool.

    Science.gov (United States)

    Budde, Marion; Niedderer, Hans; Scott, Philip; Leach, John

    2002-01-01

    Focuses on the quantum atomic model Electronium. Outlines the Bremen teaching approach in which this model is used, and analyzes the learning of two students as they progress through the teaching unit. (Author/MM)

  1. Modeling of ICRH H-minority-driven n = 1 Resonant Modes in JET

    Energy Technology Data Exchange (ETDEWEB)

    N.N. Gorelenkov; M.J. Mantsinen; S.E. Sharapov; C.Z. Cheng; the JET-EFDA Contributors

    2003-08-21

    A nonperturbative code NOVA-KN (Kinetic Nonperturbative) has been developed to account for finite orbit width (FOW) effects in nonperturbative resonant modes such as the low-frequency MHD modes observed in the Joint European Torus (JET). The NOVA-KN code was used to show that the resonant modes with frequencies in the observed frequency range are ones having the characteristic toroidal precession frequency of H-minority ions. Results are similar to previous theoretical studies of fishbone instabilities, which were found to exist at characteristic precession frequencies of hot ions.

  2. Concepts, Challenges and Successes in Modeling Thermodynamics of Metabolism

    Directory of Open Access Journals (Sweden)

    William R. Cannon

    2014-11-01

    Full Text Available The modeling of the chemical reactions involved in metabolism is a daunting task. Ideally, the modeling of metabolism would use kinetic simulations, but these simulations require knowledge of the thousands of rate constants involved in the reactions. The measurement of rate constants is very labor intensive, and hence rate constants for most enzymatic reactions are not available. Consequently, flux-based approaches have been the methods of choice because they do not require the use of the rate constants of the law of mass action. However, this convenience also limits the predictive power of flux-based approaches in that the law of mass action is not used directly, making it very difficult to predict metabolite levels or energy requirements of pathways.An alternative to both of these approaches is to model metabolism using simulations of states rather than simulations of reactions, in which the state is defined as the set of all metabolite counts or concentrations. While kinetic simulations model reactions based on the likelihood of the reaction derived from the law of mass action, states are modeled based on likelihood ratios of mass action. Both approaches provide information on the energy requirements of metabolic reactions and pathways. However, modeling states rather than reactions has the advantage that the parameters needed to model states (chemical potentials are much easier to determine than the parameters needed to model reactions (rate constants. Herein we discuss recent results, assumptions and issues in using simulations of state to model metabolism.

  3. Simulating historical landscape dynamics using the landscape fire succession model LANDSUM version 4.0

    Science.gov (United States)

    Robert E. Keane; Lisa M. Holsinger; Sarah D. Pratt

    2006-01-01

    The range and variation of historical landscape dynamics could provide a useful reference for designing fuel treatments on today's landscapes. Simulation modeling is a vehicle that can be used to estimate the range of conditions experienced on historical landscapes. A landscape fire succession model called LANDSUMv4 (LANDscape SUccession Model version 4.0) is...

  4. A Multi-Stage Maturity Model for Long-Term IT Outsourcing Relationship Success

    Science.gov (United States)

    Luong, Ming; Stevens, Jeff

    2015-01-01

    The Multi-Stage Maturity Model for Long-Term IT Outsourcing Relationship Success, a theoretical stages-of-growth model, explains long-term success in IT outsourcing relationships. Research showed the IT outsourcing relationship life cycle consists of four distinct, sequential stages: contract, transition, support, and partnership. The model was…

  5. Successes and failures of the constituent quark model

    Energy Technology Data Exchange (ETDEWEB)

    Lipkin, H.J.

    1982-01-01

    Our approach considers the model as a possible bridge between QCD and the experimental data and examines its predictions to see where these succeed and where they fail. We also attempt to improve the model by looking for additional simple assumptions which give better fits to the experimental data. But we avoid complicated models with too many ad hoc assumptions and too many free parameters; these can fit everything but teach us nothing. We define our constituent quark model by analogy with the constituent electron model of the atom and the constituent nucleon model of the nucleus. In the same way that an atom is assumed to consist only of constituent electrons and a central Coulomb field and a nucleus is assumed to consist only of constituent nucleons hadrons are assumed to consist only of their constituent valence quarks with no bag, no glue, no ocean, nor other constituents. Although these constituent models are oversimplified and neglect other constituents we push them as far as we can. Atomic physics has photons and vacuum polarization as well as constituent electrons, but the constituent model is adequate for calculating most features of the spectrum when finer details like the Lamb shift are neglected. 54 references.

  6. The Carerra Model: A Success in Pregnancy Prevention.

    Science.gov (United States)

    Elling, Duane M.

    This document outlines the development, evaluation, and replication of the Carrera model for pregnancy prevention. The Carerra model helps teens avoid pregnancy by empowering them to develop and reach personal goals, and by providing them with information on sexual issues, including abstinence, contraception, and the consequences of sexual…

  7. Fostering Under-represented Minority Student Success and Interest in the Geosciences: Outcomes of the UNC-Chapel Hill Increasing Diversity and Enhancing Academia (IDEA) Program

    Science.gov (United States)

    Hughes, M. H.; Gray, K.; Drostin, M.

    2016-12-01

    For under-represented minority (URM) students, opportunities to meaningfully participate in academic communities and develop supportive relationships with faculty and peers influence persistence in STEM majors (Figueroa, Hurtado, & Wilkins, 2015; PCAST, 2012; Tsui, 2007). Creating such opportunities is even more important in the geosciences, where a lower percentage of post-secondary degrees are awarded to URM students than in other STEM fields (NSF, 2015; O'Connell & Holmes, 2011; NSF, 2011). Since 2011, Increasing Diversity and Enhancing Academia (IDEA), a program of the UNC-Chapel Hill Institute for the Environment (UNC-IE), has provided 39 undergraduates (predominantly URM and female students) with career-relevant research experiences and professional development opportunities, including a culminating experience of presenting their research at a campus-wide research symposium. External evaluation data have helped to characterize the effectiveness of the IDEA program. These data included pre- and post-surveys assessing students' interest in geosciences, knowledge of career pathways, and perceptions of their abilities related to a specific set of scientific research skills. Additionally, progress towards degrees and dissemination outcomes were tracked. In this presentation, we will share quantitative and qualitative data that demonstrate that participation in the IDEA program has influenced students' interest and persistence in geosciences research and careers. These data range from self-reported competencies in a variety of scientific skills (such as organizing and interpreting data and reading and interpreting science literature) to documentation of student participation in geoscience study and professions. About 69% of participants continued research begun during their internships beyond the internship; and about 38% pursued graduate degrees and secured jobs in geoscience and other STEM fields. (Nearly half are still in school.) Overall, these evaluation data

  8. Testing a Model of Teaching for Anxiety and Success for English Language Teaching

    Science.gov (United States)

    Önem, Evrim; Ergenç, Iclal

    2013-01-01

    Much research has shown that there is a negative relationship between high levels of anxiety and success for English language teaching. This paper aimed to test a model of teaching for anxiety and success in English language teaching to affect anxiety and success levels at the same time in a control-experiment group with pre- and post-test study…

  9. Study of market model describing the contrary behaviors of informed and uninformed agents: Being minority and being majority

    Science.gov (United States)

    Zhang, Yu-Xia; Liao, Hao; Medo, Matus; Shang, Ming-Sheng; Yeung, Chi Ho

    2016-05-01

    In this paper we analyze the contrary behaviors of the informed investors and uniformed investors, and then construct a competition model with two groups of agents, namely agents who intend to stay in minority and those who intend to stay in majority. We find two kinds of competitions, inter- and intra-groups. The model shows periodic fluctuation feature. The average distribution of strategies illustrates a prominent central peak which is relevant to the peak-fat-tail character of price change distribution in stock markets. Furthermore, in the modified model the tolerance time parameter makes the agents diversified. Finally, we compare the strategies distribution with the price change distribution in real stock market, and we conclude that contrary behavior rules and tolerance time parameter are indeed valid in the description of market model.

  10. A Model for Physician Leadership Development and Succession Planning.

    Science.gov (United States)

    Dubinsky, Isser; Feerasta, Nadia; Lash, Rick

    2015-01-01

    Although the presence of physicians in formal leadership positions has often been limited to roles of department chiefs, MAC chairs, etc., a growing number of organizations are recruiting physicians to other leadership positions (e.g., VP, CEO) where their involvement is being genuinely sought and valued. While physicians have traditionally risen to leadership positions based on clinical excellence or on a rotational basis, truly effective physician leadership that includes competencies such as strategic planning, budgeting, mentoring, network development, etc., is essential to support organizational goals, improve performance and overall efficiency as well as ensuring the quality of care. In this context, the authors have developed a physician leader development and succession planning matrix and supporting toolkit to assist hospitals in identifying and nurturing the next generation of physician leaders.

  11. Successful public-private partnerships: The NYPD shield model.

    Science.gov (United States)

    Amadeo, Vincent; Iannone, Stephen

    2017-12-01

    This article will identify the challenges that post 9/11 law enforcement faces regarding privatepublic partnerships and describe in detail the NYPD Shield programme, created to combat those challenges. Recommendations made by the 911 Commission included the incorporation of the private sector into future homeland security strategies. One such strategy is NYPD Shield. This programme is a nationally recognized award-winning public-private partnership dedicated to providing counterterrorism training and information sharing with government agencies, non-government organizations, private businesses, and the community. Information is shared through several platforms that include a dedicated website, instruction of counterterrorism training curricula, e-mail alerts, intelligence assessments and the hosting of quarterly conferences. This article also details how the NYPD Shield is providing its successful template to other law enforcement agencies enabling them to initiate similar programmes in their respective jurisdictions, and in doing so joining a National Shield Network.

  12. Problematic healthcare insurance: a comparison with successful models.

    Science.gov (United States)

    Matusitz, Jonathan

    2014-01-01

    This article analyzes the experiences of problematic health insurance models in Canada, France, Germany, and Spain, based on news reports, facts, and data. Those nations were selected because they represent typical socialist economies with nationalized health insurance systems. Major findings are that (a) these health insurance systems are not cheap, (b) they sometimes contribute to governments' own financial deficits, (c) there are significant restrictions for access to private health care, (d) many services are not covered, and (e) the insurance plans create conflict as to what treatment options are offered. The author also provides a description of the current U.S. health care insurance model and compares it with the European socialist model. What comes subsequently is an examination of two ideal models of efficient health care insurance: the ones of Switzerland and the Netherlands. This analysis ends with a discussion section that provides implications for U.S. health care and offers suggestions for future research.

  13. Cross-Paradigm Simulation Modeling: Challenges and Successes

    Science.gov (United States)

    2011-12-01

    This paper addresses the broad topic area of cross-paradigm simulation modeling with a focus on the discrete-event, system dynamics and agent-based...used in simulation modeling are also discussed, and the implications of these mechanisms for each paradigm is explored....and definitions are presented. The difference between the process-oriented worldview and the event-oriented worldview within discrete-event simulation

  14. Eugenics, genetics, and the minority group model of disabilities: implications for social work advocacy.

    Science.gov (United States)

    O'Brien, Gerald V

    2011-10-01

    In the United States, genetic research, as well as policy and practice innovations based on this research, has expanded greatly over the past few decades. This expansion is indicated, for example, by the mapping of the human genome, an expansion of genetic counseling, and other biogenetic research. Also, a disability rights movement that in many ways parallels other "minority" rights campaigns has expanded. The coexistence of these developments poses intriguing challenges for social work that the profession has yet to address in a meaningful way. These issues are especially pertinent for social work professionals in the crucial role as advocates for marginalized populations. This article describes some ofthe concerns of disability rights activists relative to genetic innovations and goals as well as the instrumental role of the social work community in this important debate.

  15. Successful Aging: A Psychosocial Resources Model for Very Old Adults

    Directory of Open Access Journals (Sweden)

    G. Kevin Randall

    2012-01-01

    Full Text Available Objectives. Using data from the first two phases of the Georgia Centenarian Study, we proposed a latent factor structure for the Duke OARS domains: Economic Resources, Mental Health, Activities of Daily Living, Physical Health, and Social Resources. Methods. Exploratory and confirmatory factor analyses were conducted on two waves of the Georgia Centenarian Study to test a latent variable measurement model of the five resources; nested model testing was employed to assess the final measurement model for equivalency of factor structure over time. Results. The specified measurement model fit the data well at Time 1. However, at Time 2, Social Resources only had one indicator load significantly and substantively. Supplemental analyses demonstrated that a model without Social Resources adequately fit the data. Factorial invariance over time was confirmed for the remaining four latent variables. Discussion. This study’s findings allow researchers and clinicians to reduce the number of OARS questions asked of participants. This has practical implications because increased difficulties with hearing, vision, and fatigue in older adults may require extended time or multiple interviewer sessions to complete the battery of OARS questions.

  16. [AIDS prevention in Germany - a successful model in crisis].

    Science.gov (United States)

    Rosenbrock, R

    2007-04-01

    The rising number of new HIV infections in Germany, particularly among men who have sex with men, raises the question whether the previously successful prevention strategy should be revised. This strategy has been based on a New Public Health approach which arose from the specific historical context in Europe at the start of the epidemic. The hallmarks of this approach are: the active involvement of the target groups; the central role of non-governmental organizations; the combination of population level and targeted, context specific interventions; and an emphasis on social integration and voluntary participation in the work with target group members. Current challenges include: changes in risk perception (at least in part due to the availability of more effective treatments); a diversification of prevention behavioral strategies among target group members; the formation of new sexual subcultures and target groups; as well as changes in hard-to-reach populations such as immigrants and people of lower socioeconomic status. In order to meet these challenges the following measures are necessary: an increased investment in prevention research (with a particular focus on interventions specific to social contexts in which risk behavior is increasing); further development of the institutional infrastructure for prevention, including the full implementation of UNAIDS guidelines for national prevention strategies; and improving the prevention work of local AIDS service organizations and public health authorities through an increase in funding and the implementation of quality assurance measures based on participatory action research.

  17. Academic dropout or academic success: a model for prediction.

    Science.gov (United States)

    Kegel-Flom, P

    1986-09-01

    Why do some students who qualify for admission to optometry school become academic dropouts while others succeed? This question was addressed in a study which compared the admission records of 21 academic dropouts from three classes at the University of Houston College of Optometry (UHCO) with 269 retained students. Academic dropouts were found to have significantly lower preoptometry grades, lower Optometry College Admission Test (OCAT) scores, attended less competitive (i.e., less selective) undergraduate institutions, scored lower on the California Psychological Inventory (CPI), and were older than retained students. When these differentiating admission variables, excepting age, were applied to a new entering class, prediction of subsequent academic dismissal or serious academic difficulty was highly accurate. However, it was found that such prediction must take into account not only areas of weakness, i.e., academic and psychological factors which place a student at risk, but also areas of strength which give the student an advantage. For all students, regardless of age, sex, or ethnic origin, it was the ratio of "advantage" factors to "risk" factors which gave the most valid prediction of academic success or failure.

  18. Teaching Modeling with Partial Differential Equations: Several Successful Approaches

    Science.gov (United States)

    Myers, Joseph; Trubatch, David; Winkel, Brian

    2008-01-01

    We discuss the introduction and teaching of partial differential equations (heat and wave equations) via modeling physical phenomena, using a new approach that encompasses constructing difference equations and implementing these in a spreadsheet, numerically solving the partial differential equations using the numerical differential equation…

  19. Successively refined models for crack tip plasticity in polymer blends

    NARCIS (Netherlands)

    Pijnenburg, KGW; Seelig, T; van der Giessen, E

    2005-01-01

    This paper is concerned with a comparative study of different, partly complementary micromechanical models for crack tip plasticity in polymer-rubber blends. It is experimentally well established that interspersion of micron-scale rubber particles into a polymer matrix can lead to a significantly en

  20. e-Learning Success Model: An Information Systems Perspective

    Science.gov (United States)

    Lee-Post, Anita

    2009-01-01

    This paper reports the observations made and experience gained from developing and delivering an online quantitative methods course for Business undergraduates. Inspired by issues and challenges experienced in developing the online course, a model is advanced to address the question of how to guide the design, development, and delivery of…

  1. Teaching Modeling with Partial Differential Equations: Several Successful Approaches

    Science.gov (United States)

    Myers, Joseph; Trubatch, David; Winkel, Brian

    2008-01-01

    We discuss the introduction and teaching of partial differential equations (heat and wave equations) via modeling physical phenomena, using a new approach that encompasses constructing difference equations and implementing these in a spreadsheet, numerically solving the partial differential equations using the numerical differential equation…

  2. A successful solar model using new solar composition data

    CERN Document Server

    Vagnozzi, Sunny; Zurbuchen, Thomas H

    2016-01-01

    A resolution is proposed to the "solar abundance problem", that is, the discrepancy between helioseismological observations and the predictions of solar models, computed implementing state-of-the-art photospheric abundances. We reassess the problem considering a newly determined set of abundances, which indicate a lower limit to the metallicity of $Z_{\\odot} = 0.0196 \\pm 0.0014$, significantly higher than findings during the past decade. Such value for the metallicity is determined in situ, measuring the least fractionated solar winds over the poles of the Sun, rather than spectroscopically. We determine the response of helioseismological observables to the corresponding changes in elemental abundances. Our findings indicate that, taking inversion errors into account, good agreement between models and observations is achieved. The definitive test for these abundances will be measurements of the CNO neutrino fluxes by SNO$^+$ (which we expect to be $\\sim$ 30-50\\% higher than predictions using abundances based ...

  3. The Applicant Based Training Model Setting Conditions for Recruiting Success

    Science.gov (United States)

    2002-07-01

    the recruiting districts there are functions performed that help guide and support the billet holders at the RSSs and RSs in the performance of their...one can use to evaluate and prioritize training requirements for key members of RSSs and RS. The following paragraphs offer general conclusions and...training model validates training for recruiters. Due to the geographical dispersion of the RSSs , distance learning initiatives could help support this type

  4. Student Success: Approaches to Modeling Student Matriculation and Retention

    OpenAIRE

    Lin, Jien-Jou

    2013-01-01

    Every year a group of graduates from high schools enter the engineering programs across this country with remarkable academic record. However, as reported in numerous studies, the number of students switching out of engineering majors continues to be an important issue. Previous studies have suggested various factors as predictors for student retention in engineering. To assist the engineering students with timely advising early in their program, an effective prediction model of matriculation...

  5. The secret to successful solute-transport modeling

    Science.gov (United States)

    Konikow, L.F.

    2011-01-01

    Modeling subsurface solute transport is difficult—more so than modeling heads and flows. The classical governing equation does not always adequately represent what we see at the field scale. In such cases, commonly used numerical models are solving the wrong equation. Also, the transport equation is hyperbolic where advection is dominant, and parabolic where hydrodynamic dispersion is dominant. No single numerical method works well for all conditions, and for any given complex field problem, where seepage velocity is highly variable, no one method will be optimal everywhere. Although we normally expect a numerically accurate solution to the governing groundwater-flow equation, errors in concentrations from numerical dispersion and/or oscillations may be large in some cases. The accuracy and efficiency of the numerical solution to the solute-transport equation are more sensitive to the numerical method chosen than for typical groundwater-flow problems. However, numerical errors can be kept within acceptable limits if sufficient computational effort is expended. But impractically long

  6. Modeling Forest Succession among Ecological Land Units in Northern Minnesota

    Directory of Open Access Journals (Sweden)

    George Host

    1998-12-01

    Full Text Available Field and modeling studies were used to quantify potential successional pathways among fine-scale ecological classification units within two geomorphic regions of north-central Minnesota. Soil and overstory data were collected on plots stratified across low-relief ground moraines and undulating sand dunes. Each geomorphic feature was sampled across gradients of topography or soil texture. Overstory conditions were sampled using five variable-radius point samples per plot; soil samples were analyzed for carbon and nitrogen content. Climatic, forest composition, and soil data were used to parameterize the sample plots for use with LINKAGES, a forest growth model that simulates changes in composition and soil characteristics over time. Forest composition and soil properties varied within and among geomorphic features. LINKAGES simulations were using "bare ground" and the current overstory as starting conditions. Northern hardwoods or pines dominated the late-successional communities of morainal and dune landforms, respectively. The morainal landforms were dominated by yellow birch and sugar maple; yellow birch reached its maximum abundance in intermediate landscape positions. On the dune sites, pine was most abundant in drier landscape positions, with white spruce increasing in abundance with increasing soil moisture and N content. The differences in measured soil properties and predicted late-successional composition indicate that ecological land units incorporate some of the key variables that govern forest composition and structure. They further show the value of ecological classification and modeling for developing forest management strategies that incorporate the spatial and temporal dynamics of forest ecosystems.

  7. Using the internet in middle schools: A model for success

    Energy Technology Data Exchange (ETDEWEB)

    Addessio, B.; Boorman, M.; Eker, P.; Fletcher, K.; Judd, B.; Trainor, M. [Los Alamos National Lab., NM (United States); Corn, C.; Olsen, J.; Trottier, A. [Los Alamos Middle School, Los Alamos, New Mexico (United States)

    1994-03-01

    Los Alamos National Laboratory (LANL) developed a model for school networking using Los Alamos Middle School as a testbed. The project was a collaborative effort between the school and the Laboratory. The school secured administrative funding for hardware and software; and LANL provided the network architecture, installation, consulting, and training. The model is characterized by a computer classroom linked with two GatorBoxes and a UNIX-based workstation server. Six additional computers have also been networked from a teacher learning center and the library. The model support infrastructure includes: local school system administrators/lead teachers, introductory and intermediate hands-on teacher learning, teacher incentives for involvement and use, opportunities for student training and use, and ongoing LANL consulting. Formative evaluation data reveals that students and teachers alike are finding the Internet to be a tool that crosses disciplines, allowing them to obtain more, timely information and to communicate with others more effectively and efficiently. A lead teacher`s enthusiastic comments indicate some of the value gained: ``We have just scratched the surface. Each day someone seems to find something new and interesting on the Internet. The possibilities seem endless.``

  8. A model for successful research partnerships: a New Brunswick experience.

    Science.gov (United States)

    Tamlyn, Karen; Creelman, Helen; Fisher, Garfield

    2002-01-01

    The purpose of this paper is to present an overview of a partnership model used to conduct a research study entitled "Needs of patients with cancer and their family members in New Brunswick Health Region 3 (NBHR3)" (Tamlyn-Leaman, Creelman, & Fisher, 1997). This partial replication study carried out by the three authors between 1995 and 1997 was a needs assessment, adapted with permission from previous work by Fitch, Vachon, Greenberg, Saltmarche, and Franssen (1993). In order to conduct a comprehensive needs assessment with limited resources, a partnership between academic, public, and private sectors was established. An illustration of this partnership is presented in the model entitled "A Client-Centred Partnership Model." The operations of this partnership, including the strengths, the perceived benefits, lessons learned by each partner, the barriers, and the process for conflict resolution, are described. A summary of the cancer care initiatives undertaken by NBHR3, which were influenced directly or indirectly by the recommendations from this study, is included.

  9. The social networking application success model : An Empirical Study of Facebook and Twitter

    NARCIS (Netherlands)

    Ou, Carol; Davison, R.M.; Huang, Q.

    2016-01-01

    Social networking applications (SNAs) are among the fastest growing web applications of recent years. In this paper, we propose a causal model to assess the success of SNAs, grounded on DeLone and McLean’s updated information systems (IS) success model. In addition to their original three dimensions

  10. The social networking application success model : An empirical study of Facebook and Twitter

    NARCIS (Netherlands)

    Ou, Carol; Davison, R.M.; Huang, Q.

    2016-01-01

    Social networking applications (SNAs) are among the fastest growing web applications of recent years. In this paper, we propose a causal model to assess the success of SNAs, grounded on DeLone and McLean’s updated information systems (IS) success model. In addition to their original three dimensions

  11. Pathways to success: AIME’s educational mentoring model

    Directory of Open Access Journals (Sweden)

    Amy Priestly

    2015-10-01

    Full Text Available The Australian Indigenous Mentoring Experience (AIME is a structured educational mentoring program provided for Indigenous students to access throughout their high school experience. The program is designed to support students to complete high school and transition into university, further education and training or employment at the same rate as every Australian child, effectively closing the gap on educational outcomes. To better understand the impact of the program, AIME has developed a research partnership with a team of researchers from the University of Wollongong (UOW and the University of Technology, Sydney (UTS. Comprising researchers with experience in qualitative and quantitative approaches, this research has grown from a small UOW internally funded project, to a large national project. This collaborative research partnership has already spanned five years and has produced several theorised academic papers, based on both qualitative and quantitative research that describes the AIME program and its merits (Bodkin-Andrews et al. 2013; O’Shea et al. 2013; Kervin et al. 2014; O’Shea et al. 2014; Harwood et al. 2015. Findings from the research to date have reported the success of the AIME program in engaging Indigenous young people in education (Bodkin-Andrews et al. 2013 as well as described the novel ways that the AIME program reorients the focus on aspirations to one of ‘recognition of aspirations’ (Harwood et al. 2014. Further analysis continues to be conducted, including the outcomes of an AIME national survey in 2014 and a paper currently under review that explains the different pedagogy used in the AIME program (McMahon et al, under review. All research activities through this partnership are aligned with protocols for research with Indigenous Australians, as described by the Australian Institute of Aboriginal and Torres Strait Islander Studies. We work collaboratively to discuss, plan and develop research projects and we

  12. From Forever Foreigners to Model Minority: Asian American Men in Sports

    Directory of Open Access Journals (Sweden)

    Lee Yomee

    2016-12-01

    Full Text Available Despite their long history in the United States, relatively little scholarly attention has been paid to Asian Americans and their lived experience in sports. The purpose of this study was to give voices to Asian American men by focusing on their experiences in sports. In particular, this study examined the experiences of East Asian and Southeast Asian American male college students who were often perceived as “foreign” and “pejoratively feminine” racialized minority yet participated in sports that were associated with dominant masculinity in the U.S. The setting of the study was as a predominately White institution located in Upstate New York where Asian Americans make up about one percent of the total student population. Qualitative research method was employed for the study. Six Asian American male students were recruited through snowball and purposeful sampling methods. In-depth interviews were conducted to reveal the rich stories of these Asian American men. The research showed that the stories of Asian American male college students were much nuanced and complicated. Specifically, this study revealed that Asian American men were constantly otherized as “forever foreigners” who did not have a legitimate citizenship in the United States. Also, Asian Americans faced unique ideas about their manhood that either highlighted emasculated and feminized masculinity or hyper-masculinity. In dealing with these situations, Asian American men employed unique cultural strategies to challenge and resist racial stereotypes through sports.

  13. Spallation reactions. A successful interplay between modeling and applications

    CERN Document Server

    David, J -C

    2015-01-01

    The spallation reactions are a type of nuclear reaction which occur in space by interaction of the cosmic rays with interstellar bodies. The first spallation reactions induced with an accelerator took place in 1947 at the Berkeley cyclotron (University of California) with 200 MeV deuterons and 400 MeV alpha beams. They highlighted the multiple emission of neutrons and charged particles and the production of a large number of residual nuclei far different from the target nuclei. The same year R. Serber describes the reaction in two steps: a first and fast one with high-energy particle emission leading to an excited remnant nucleus, and a second one, much slower, the de-excitation of the remnant. In 2010 IAEA organized a worskhop to present the results of the most widely used spallation codes within a benchmark of spallation models. If one of the goals was to understand the deficiencies, if any, in each code, one remarkable outcome points out the overall high-quality level of some models and so the great improv...

  14. Successful Manipulation in Stable Marriage Model with Complete Preference Lists

    Science.gov (United States)

    Kobayashi, Hirotatsu; Matsui, Tomomi

    This paper deals with a strategic issue in the stable marriage model with complete preference lists (i.e., a preference list of an agent is a permutation of all the members of the opposite sex). Given complete preference lists of n men over n women, and a marriage µ, we consider the problem for finding preference lists of n women over n men such that the men-proposing deferred acceptance algorithm (Gale-Shapley algorithm) adopted to the lists produces µ. We show a simple necessary and sufficient condition for the existence of a set of preference lists of women over men. Our condition directly gives an O(n2) time algorithm for finding a set of preference lists, if it exists.

  15. Work-related stress according to the demand-control model and minor psychic disorders in nursing workers

    Directory of Open Access Journals (Sweden)

    Janete de Souza Urbanetto

    2013-10-01

    Full Text Available This was a cross-sectional study that aimed to assess the association between work-related stress according to the Demand-Control Model, and the occurrence of Minor Psychic Disorder (MPD in nursing workers. The participants were 335 professionals, out of which 245 were nursing technicians, aged predominantly between 20 and 40 years. Data were collected using the Job Stress Scale and the Self-Reporting Questionnaire-20. The analysis was performed using descriptive and analytical statistics. The prevalence of suspected MPD was 20.6%. Workers classified in the quadrants active job and high strain of the Demand-Control Model presented higher potential for developing MPD compared with those classified in the quadrant low strain. In conclusion, stress affects the mental health of workers and the aspects related to high psychological demands and high control still require further insight in order to understand their influence on the disease processes of nursing workers.

  16. [Work-related stress according to the Demand-Control Model and Minor Psychic Disorder in nursing workers].

    Science.gov (United States)

    Urbanetto, Janete de Souza; Magalhães, Maria Cristina Cademartori; Maciel, Vanessa Oreda; Sant'Anna, Viviane Massena; Gustavo, Andréia da Silva; Poli-de-Figueiredo, Carlos Eduardo; Magnago, Tânia Solange Bosi de Souza

    2013-10-01

    This was a cross-sectional study that aimed to assess the association between work-related stress according to the Demand-Control Model, and the occurrence of Minor Psychic Disorder (MPD) in nursing workers. The participants were 335 professionals, out of which 245 were nursing technicians, aged predominantly between 20 and 40 years. Data were collected using the Job Stress Scale and the Self-Reporting Questionnaire-20. The analysis was performed using descriptive and analytical statistics. The prevalence of suspected MPD was 20.6%. Workers classified in the quadrants active job and high strain of the Demand-Control Model presented higher potential for developing MPD compared with those classified in the quadrant low strain. In conclusion, stress affects the mental health of workers and the aspects related to high psychological demands and high control still require further insight in order to understand their influence on the disease processes of nursing workers.

  17. Theoretical models of pentamidine analogs activity based on their DNA minor groove complexes.

    Science.gov (United States)

    Zołek, Teresa; Maciejewska, Dorota

    2010-05-01

    The B-DNA binding property of pentamidine analogs was analyzed employing molecular dynamic simulations and UV-vis absorption spectroscopy. Their AATT and ATAT sequence preferences were also examined. In theoretical energy computations, we considered two solvation models: the implicit model I, where the solvent is characterized by a dielectric constant and the explicit model E, where water molecules are treated as discrete entities. The binding energy correlates well with the increase of melting temperature of the 5'-d(CGCGAATTCGCG)(2)-3' and 5'-d(CGCGATATCGCG)(2)-3' dodecamers after complexation with ligands (DeltaTm), and deduced models predicted adequately the DNA affinities of the studied diamidines.

  18. Maximum likelihood model based on minor allele frequencies and weighted Max-SAT formulation for haplotype assembly.

    Science.gov (United States)

    Mousavi, Sayyed R; Khodadadi, Ilnaz; Falsafain, Hossein; Nadimi, Reza; Ghadiri, Nasser

    2014-06-07

    Human haplotypes include essential information about SNPs, which in turn provide valuable information for such studies as finding relationships between some diseases and their potential genetic causes, e.g., for Genome Wide Association Studies. Due to expensiveness of directly determining haplotypes and recent progress in high throughput sequencing, there has been an increasing motivation for haplotype assembly, which is the problem of finding a pair of haplotypes from a set of aligned fragments. Although the problem has been extensively studied and a number of algorithms have already been proposed for the problem, more accurate methods are still beneficial because of high importance of the haplotypes information. In this paper, first, we develop a probabilistic model, that incorporates the Minor Allele Frequency (MAF) of SNP sites, which is missed in the existing maximum likelihood models. Then, we show that the probabilistic model will reduce to the Minimum Error Correction (MEC) model when the information of MAF is omitted and some approximations are made. This result provides a novel theoretical support for the MEC, despite some criticisms against it in the recent literature. Next, under the same approximations, we simplify the model to an extension of the MEC in which the information of MAF is used. Finally, we extend the haplotype assembly algorithm HapSAT by developing a weighted Max-SAT formulation for the simplified model, which is evaluated empirically with positive results.

  19. A Diffusion Theory Model of Adoption and Substitution for Successive Generations of High-Technology Products

    OpenAIRE

    John A. Norton; Frank M. Bass

    1987-01-01

    This study deals with the dynamic sales behavior of successive generations of high-technology products. New technologies diffuse through a population of potential buyers over time. Therefore, diffusion theory models are related to this demand growth. Furthermore, successive generations of a technology compete with earlier ones, and that behavior is the subject of models of technological substitution. Building upon the Bass (Bass, F. M. 1969. A new-product growth model for consumer durables. M...

  20. Budget Impact Analysis of Against Colorectal Cancer In Our Neighborhoods (ACCION): A Successful Community-Based Colorectal Cancer Screening Program for a Medically Underserved Minority Population.

    Science.gov (United States)

    Kim, Bumyang; Lairson, David R; Chung, Tong Han; Kim, Junghyun; Shokar, Navkiran K

    2017-06-01

    Given the uncertain cost of delivering community-based cancer screening programs, we developed a Markov simulation model to project the budget impact of implementing a comprehensive colorectal cancer (CRC) prevention program compared with the status quo. The study modeled the impacts on the costs of clinical services, materials, and staff expenditures for recruitment, education, fecal immunochemical testing (FIT), colonoscopy, follow-up, navigation, and initial treatment. We used data from the Against Colorectal Cancer In Our Neighborhoods comprehensive CRC prevention program implemented in El Paso, Texas, since 2012. We projected the 3-year financial consequences of the presence and absence of the CRC prevention program for a hypothetical population cohort of 10,000 Hispanic medically underserved individuals. The intervention cohort experienced a 23.4% higher test completion rate for CRC prevention, 8 additional CRC diagnoses, and 84 adenomas. The incremental 3-year cost was $1.74 million compared with the status quo. The program cost per person was $261 compared with $86 for the status quo. The costs were sensitive to the proportion of high-risk participants and the frequency of colonoscopy screening and diagnostic procedures. The budget impact mainly derived from colonoscopy-related costs incurred for the high-risk group. The effectiveness of FIT to detect CRC was critically dependent on follow-up after positive FIT. Community cancer prevention programs need reliable estimates of the cost of CRC screening promotion and the added budget impact of screening with colonoscopy. Copyright © 2017 International Society for Pharmacoeconomics and Outcomes Research (ISPOR). Published by Elsevier Inc. All rights reserved.

  1. Qualitative study of the behavior of minor species during a stratospheric warming with a 3-D model

    Science.gov (United States)

    Ramaroson, R.; Pirre, M.; Cariolle, D.

    1994-01-01

    It is well-known that the behavior of the ozone layer depends upon the coupling between several processes in the atmosphere. Natural or anthropogenic pollutants emitted from the surface or injected directly at high altitude may affect this layer. Assessment studies for long-term changes of the ozone layer are conducted with the aid of various two-dimensional models. These models describe the long-term and seasonal evolution of minor constituents and take into account the interaction between all processes. However, many limitations affect the self-consistency of these models e.g., the circulation in these models is only meridional and vertical and is not able to represent all types of motion in the atmosphere. During a perturbed winter in the north polar regions, the vortex is displaced from the pole to lower latitude so that wind may be reversed at a given location. Perturbed air masses are transported outside the darkened regions and may mix with local air masses. Three-dimensional models are the only tools which can describe correctly these sporadic phenomena.

  2. Asian and Pacific Islander women scientists and engineers: A narrative exploration of model minority, gender, and racial stereotypes

    Science.gov (United States)

    Chinn, Pauline W. U.

    2002-04-01

    This qualitative study uses narrative methodology to understand what becoming a scientist or engineer entails for women stereotyped as model minorities. Interviews with four Chinese and Japanese women focused on the social contexts in which science is encountered in classrooms, families, and community. Interpretation was guided by theories that individuals construct personal narratives mediated by cultural symbolic systems to make meaning of experiences. Narratives revealed that Confucian cultural scripts shaped gender expectations even in families several generations in America. Regardless of parents' level of education, country of birth, and number of children, educational expectations, and resources were lower for daughters. Parents expected daughters to be compliant, feminine, and educated enough to be marriageable. Findings suggest K-12 gender equity science practices encouraged development of the women's interests and abilities but did not affect parental beliefs. The author's 1999 study of Hawaiians/Pacific Islander and Filipina female engineers is included in implications for teacher education programs sensitive to gender, culture, ethnicity, and language.

  3. Investigating the myth of the "model minority": a participatory community health assessment of Chinese and Vietnamese adults.

    Science.gov (United States)

    Tendulkar, Shalini Ahuja; Hamilton, Renée Cammarata; Chu, Chieh; Arsenault, Lisa; Duffy, Kevin; Huynh, Van; Hung, Mei; Lee, Eric; Jane, Shwuling; Friedman, Elisa

    2012-10-01

    Despite the persistent belief that Asians are the "model minority" there is accumulating evidence of health concerns within Asian subgroups. In this study, we implemented a cross-sectional participatory community health assessment in an urban city in Massachusetts, to understand differences and similarities in demographics, health and healthcare access in Chinese and Vietnamese adults. We gathered qualitative data from community stakeholders to inform the development of a community health assessment tool. The tool elicited information on healthcare access, health status, behavioral health and chronic disease history and treatment. Healthcare access issues and poor health status, particularly among Chinese participants and mental health symptomotology in both groups were areas of concern. These findings revealed important health concerns in two Asian ethnic groups. Studies are needed to better understand these concerns and inform programs and policies to improve health outcomes in these Asian ethnic groups.

  4. Crisis and emergency risk communication in a pandemic: a model for building capacity and resilience of minority communities.

    Science.gov (United States)

    Crouse Quinn, Sandra

    2008-10-01

    As public health agencies prepare for pandemic influenza, it is evident from our experience with Hurricane Katrina that these events will occur in the same social, historical, and cultural milieu in which marked distrust of government and health disparities already exist. This article grapples with the challenges of crisis and emergency risk communication with special populations during a pandemic. Recognizing that targeting messages to specific groups poses significant difficulties at that time, this article proposes a model of community engagement, disaster risk education, and crisis and emergency risk communication to prepare minority communities and government agencies to work effectively in a pandemic, build the capacity of each to respond, and strengthen the trust that is critical at such moments. Examples of such engagement and potential strategies to enhance trust include tools familiar to many health educators.

  5. Successful aging as a continuum of functional independence: lessons from physical disability models of aging.

    NARCIS (Netherlands)

    Lowry, K.A.; Vallejo, A.N.; Studenski, S.A.

    2012-01-01

    Successful aging is a multidimensional construct that could be viewed as a continuum of achievement. Based on the disability model proposed by the WHO International Classification of Functioning, Disability and Health, successful aging includes not only the presence or absence of disease, but also

  6. SUCCESS AND PROGRESS IN HIGHER-EDUCATION : A STRUCTURAL MODEL OF STUDYING

    NARCIS (Netherlands)

    MINNAERT, A; JANSSEN, PJ

    1992-01-01

    In Belgium, the success rates of freshmen in higher education are relatively low. To understand this phenomenon a structural model for indiviaual differences in study success and progress is suggested. Starting from the theory that studying is the integration of thinking and learning on the basis of

  7. Successful aging as a continuum of functional independence: lessons from physical disability models of aging.

    NARCIS (Netherlands)

    Lowry, K.A.; Vallejo, A.N.; Studenski, S.A.

    2012-01-01

    Successful aging is a multidimensional construct that could be viewed as a continuum of achievement. Based on the disability model proposed by the WHO International Classification of Functioning, Disability and Health, successful aging includes not only the presence or absence of disease, but also a

  8. Implementation of "Learning from Success" Model on Learning Disabilities Students

    Directory of Open Access Journals (Sweden)

    Zeev Greenberg

    2012-01-01

    Full Text Available Problem statement: Students who have difficulties with studies lack study skills, demonstrate inconsistent achievements and are generally assigned to low-level study groups. In light of this situation, they tend to develop a poor self-image and low self-esteem. Therefore it is important to identify the coping skills that lead to success, which can serve as a model for the work of education systems. The purpose of this article is to describe learning from success model that involves the examination of events that can be translated into modes of action that promote future success. The research is innovative in its application of the model, which is commonly used among professionals, in work with high-school students. Approach: The research is qualitative, based on analysis of project presentations created by the students according to the learning from success model and discussions held after showing the presentations. The research examined the principles of action that led to the success of these students in national final exams, by means of reflection on their learning. Results: The results of the research indicate that use of the learning from success model highlights the importance of studying in small groups and learning from peers, which help students develop a sense of success and personal responsibility. Conclusion: The model can be applied with students in order to identify the principles of action that contribute to their success in final exams. In addition, during application of the model, the students develop a sense of success and personal responsibility for studying.

  9. An Analytic Model for the Success Rate of a Robotic Actuator System in Hitting Random Targets

    National Research Council Canada - National Science Library

    Bradley, Stuart

    2015-01-01

    .... While simulations and measurements exist for the success rate of hitting targets by some systems, there is a dearth of analytic models which can give insight into, and guidance on optimization, of new robotic systems...

  10. National culture and business model change: a framework for successful expansions

    DEFF Research Database (Denmark)

    Dalby, J.; Nielsen, L.S.; Lueg, Rainer;

    2014-01-01

    Dalby, J., Nielsen, Lueg, R., L. S., Pedersen, L., Tomoni, A. C. 2014. National culture and business model change: a framework for successful expansions. Journal of Enterprising Culture, 22(4): 379-498.......Dalby, J., Nielsen, Lueg, R., L. S., Pedersen, L., Tomoni, A. C. 2014. National culture and business model change: a framework for successful expansions. Journal of Enterprising Culture, 22(4): 379-498....

  11. Modelling succession of key resource harvesting traits of mixotrophic plankton populations

    DEFF Research Database (Denmark)

    Berge, Terje; Chakraborty, Subhendu; Hansen, Per Juel;

    2016-01-01

    Unicellular eukaryotes make up the base of the ocean food web and exist as a continuum in trophic strategy from pure heterotrophy (phagotrophic zooplankton) to pure photoautotrophy (‘phytoplankton’), with a dominance of mixotrophic organisms combining both strategies. Here we formulate a trait...... in the spring and increased phagotrophy during the summer, reflecting general seasonal succession patterns of temperate waters. Our trait-based model presents a simple and general approach for the inclusion of mixotrophy, succession and evolution in ecosystem models....

  12. Modelling the attack success of planktonic predators: patterns and mechanisms of prey size selectivity

    DEFF Research Database (Denmark)

    Caparroy, P.; Thygesen, Uffe Høgsbro; Visser, Andre

    2000-01-01

    A mathematical model of the attack success of planktonic predators (fish larvae and carnivorous copepods) is proposed. Based on a geometric representation of attack events, the model considers how the escape reaction characteristics (speed and direction) of copepod prey affect their probability...... of being captured. By combining the attack success model with previously published hydrodynamic models of predator and prey perception, we examine how predator foraging behaviour and prey perceptive ability affect the size spectra of encountered and captured copepod prey. We examine food size spectra of (i...... also acts in modifying the prey escape direction. The model demonstrates that the reorientation of the prey escape path towards the centre of the feeding current's flow field results in increased attack success of the predator. Finally, the model examines how variability in the kinetics of approach...

  13. Two-dimensional time-dependent model of the transport of minor species in the Venus night side upper atmosphere

    Science.gov (United States)

    Collet, Arnaud; Cox, Cédric; Gérard, Jean-Claude

    2010-12-01

    We present a numerical tool developed to quantify the role of processes controlling the spatio-temporal distribution of the NO ultraviolet and O2(Δg1) infrared nightglows in the Venus night side upper atmosphere, observed with the VIRTIS and SPICAV instruments on board Venus Express. This numerical tool consists in a two-dimensional chemical-transport time-dependent model which computes in a hypothetical rectangular solving domain the spatio-temporal distributions of the number densities of the four minor species at play in these two nightglow emissions. The coupled nonlinear system of the four partial differential equations, describing the spatio-temporal variations of the minor species, has been solved using a finite volume method with a forward Euler method for the time integration scheme. As an application, we have first simulated a time-constant supply of atoms through the upper boundary of the solving domain. The fluxes are inhomogeneous relative to its horizontal direction, in order to simulate regions of enhanced downward flow of oxygen and nitrogen giving rise to NO and O 2 brightening. Given that these two emissions show large time variations, we have also simulated a time-dependent downward flux of O and N atoms. It results from these simulations that the lack of correlation between the NO and O2(Δg1) nightglows largely result from to the coupling between horizontal and vertical transport processes and the very different chemical lifetimes of the two species. In particular, we have quantified the role of each process generating spatio-temporal de-correlations between the NO and O2(Δg1) nightglows.

  14. A model for parallel triple helix formation by RecA: single-single association with a homologous duplex via the minor groove.

    Science.gov (United States)

    Bertucat, G; Lavery, R; Prévost, C

    1998-12-01

    The nucleoproteic filaments of RecA polymerized on single stranded DNA are able to integrate double stranded DNA in a coaxial arrangement (with DNA stretched by a factor 1.5), to recognize homologous sequences in the duplex and to perform strand exchange between the single stranded and double stranded molecules. While experimental results favor the hypothesis of an invasion of the minor groove of the duplex by the single strand, parallel minor groove triple helices have never been isolated or even modeled, the minor groove offering little space for a third strand to interact. Based on an internal coordinate modeling study, we show here that such a structure is perfectly conceivable when the two interacting oligomers are stretched by a factor 1.5, in order to open the minor groove of the duplex. The model helix presents characteristics that coincide with known experimental data on unwinding, base pair inclination and inter-proton distances. Moreover, we show that extension and unwinding stabilize the triple helix. New patterns of triplet interaction via the minor groove are presented.

  15. The Social Networking Application Success Model: An Empirical Study of Facebook and Twitter

    Directory of Open Access Journals (Sweden)

    Carol X. J. Ou

    2016-06-01

    Full Text Available Social networking applications (SNAs are among the fastest growing web applications of recent years. In this paper, we propose a causal model to assess the success of SNAs, grounded on DeLone and McLean’s updated information systems (IS success model. In addition to their original three dimensions of quality, i.e., system quality, information quality and service quality, we propose that a fourth dimension - networking quality - contributes to SNA success. We empirically examined the proposed research model with a survey of 168 Facebook and 149 Twitter users. The data validates the significant role of networking quality in determining the focal SNA’s success. The theoretical and practical implications are discussed.

  16. Assessing eGovernment Systems Success: A Validation of the DeLone and McLean Model of Information Systems Success

    Science.gov (United States)

    Wang, Yi-Shun; Liao, Yi-Wen

    2008-01-01

    With the proliferation of the Internet and World Wide Web applications, people are increasingly interacting with government to citizen (G2C) eGovernment systems. It is therefore important to measure the success of G2C eGovernment systems from the citizen's perspective. While general information systems (IS) success models have received much…

  17. Finding Respondents from Minority Groups

    Science.gov (United States)

    Mier, Nelda; Medina, Alvaro A.; Bocanegra-Alonso, Anabel; Castillo-Ruiz, Octelina; Acosta-Gonzalez, Rosa I.; Ramirez, Jose A.

    2006-01-01

    The recruitment of respondents belonging to ethnic minorities poses important challenges in social and health research. This paper reflects on the enablers and barriers to recruitment that we encountered in our research work with persons belonging to ethnic minorities. Additionally, we applied the Matching Model of Recruitment, a theoretical…

  18. Countermensure Research on Problems Impeding Farmers' Successful Entrepreneurship in Minority Areas%妨碍少数民族地区农民成功创业的问题及对策

    Institute of Scientific and Technical Information of China (English)

    俸晓锦; 徐枞巍

    2011-01-01

    By investigating the problem of farmers' entrepreneurship in Gongcheng Yaozu Autonomous County, lying in Guilin, Guangxi, the thesis expounds the existing problems impacting farmers' successful entrepreneurship in minority areas as follows: firstly, the musty idea of local cadre is obstacle to farmers' successful entrepreneurship; secondly, the problems of scattered farmers' entrepreneurship resources, waste and shortage of resources impact good effect of entrepreneurship; thirdly, farmers lack awareness of characteristics and brand, influencing the market competitiveness of products; fourthly, the existence of smallholder consciousness critically hampers the marketization and internationalization of entrepreneurship accomplishments; fifthly, the government pays no attention to the construction of industrial chain, which makes farmers' entrepreneurship lack sustainability. Based on these, corresponding countermeasures are put forward to promote farmers' successful entrepreneurship in minority areas as follows: firstly, we should update local leaders' ideas and emphasize the positive role of farmers' successful entrepreneurship in county economic development; secondly, we should integrate local entrepreneurship resources and promote the efficiency of farmers' entrepreneurship; thirdly, we should foster the consciousness of brand and characteristics and strengthen the market competitiveness of entrepreneurship accomplishments; fourthly, we should strengthen the construction of industrial chain to promote sustainable development of farmers' entrepreneurship.%基于对恭城瑶族自治县农民创业情况的调研,分析了影响少数民族地区农民成功创业存在的问题:一是地方领导干部的观念落后,使得农民创业困难重重;二是农民创业资源分散、资源短缺,使得创业效果不佳;三是农民创业缺乏特色和品牌意识,使得产品缺乏市场竞争力;四是小农意识严重,阻碍了创业成果的市场化和国际

  19. Translational PK/PD modeling to increase probability of success in drug discovery and early development.

    Science.gov (United States)

    Lavé, Thierry; Caruso, Antonello; Parrott, Neil; Walz, Antje

    In this review we present ways in which translational PK/PD modeling can address opportunities to enhance probability of success in drug discovery and early development. This is achieved by impacting efficacy and safety-driven attrition rates, through increased focus on the quantitative understanding and modeling of translational PK/PD. Application of the proposed principles early in the discovery and development phases is anticipated to bolster confidence of successfully evaluating proof of mechanism in humans and ultimately improve Phase II success. The present review is centered on the application of predictive modeling and simulation approaches during drug discovery and early development, and more specifically of mechanism-based PK/PD modeling. Case studies are presented, focused on the relevance of M&S contributions to real-world questions and the impact on decision making.

  20. Successive inverse polynomial interpolation to optimize Smagorinsky's model for large-eddy simulation of homogeneous turbulence

    NARCIS (Netherlands)

    Geurts, Bernard J.; Meyers, Johan

    2006-01-01

    We propose the successive inverse polynomial interpolation method to optimize model parameters in subgrid parameterization for large-eddy simulation. This approach is illustrated for the Smagorinsky eddy-viscosity model used in homogeneous decaying turbulence. The optimal Smagorinsky parameter is re

  1. Successive inverse polynomial interpolation to optimize Smagorinsky's model for large-eddy simulation of homogeneous turbulence

    NARCIS (Netherlands)

    Geurts, Bernardus J.; Meyers, Johan

    We propose the successive inverse polynomial interpolation method to optimize model parameters in subgrid parameterization for large-eddy simulation. This approach is illustrated for the Smagorinsky eddy-viscosity model used in homogeneous decaying turbulence. The optimal Smagorinsky parameter is

  2. Modeling Success: Using Preenrollment Data to Identify Academically At-Risk Students

    Science.gov (United States)

    Gansemer-Topf, Ann M.; Compton, Jonathan; Wohlgemuth, Darin; Forbes, Greg; Ralston, Ekaterina

    2015-01-01

    Improving student success and degree completion is one of the core principles of strategic enrollment management. To address this principle, institutional data were used to develop a statistical model to identify academically at-risk students. The model employs multiple linear regression techniques to predict students at risk of earning below a…

  3. [Innovative health care models in Germany - success factors, barriers and transferability].

    Science.gov (United States)

    Müller, Beate S; Leiferman, Mareike; Wilke, Dennis; Gerlach, Ferdinand M; Erler, Antje

    2016-10-01

    Safeguarding country-wide health care in Germany requires innovative ideas: a shortage of skilled staff among medical professionals and in long-term care on the one hand contrasts with an increasing number of multi-morbid elderly patients on the other hand. In the "Innovative Health Care Models" project sponsored by the Robert Bosch Foundation a nationwide status review and systematization of innovative approaches to health care was conducted, along with an analysis of the factors that promote or hinder the implementation of a health care model, and a study of the conditions that must be satisfied if successful concepts are to be transferred to other regions. After identifying innovative and successfully implemented health care models, data on success factors and barriers for implementation as well as data on conditions of their transferability to other regions were collected during structured telephone interviews and entered into a specifically developed database. Content analysis was used to qualitatively evaluate the interviews. Interviews with 65 representatives of successfully implemented models with differing organizational structures and priorities were conducted and evaluated. Success factors and barriers were most obvious in the fields of leadership, readiness to participate, relational aspects, personality traits, cooperation and communication, resources and organizational and structural factors. Various regionally linked health care concepts already exist throughout Germany. The barriers, success factors and conditions influencing the transferability of a model to other regions are largely independent of the type of organization. The success of a model is determined by adequate personal and financial resources, sound organizational structures and external support from political and funding bodies. Copyright © 2016. Published by Elsevier GmbH.

  4. Comprehensive Model of Annual Plankton Succession Based on the Whole-Plankton Time Series Approach

    OpenAIRE

    Jean-Baptiste Romagnan; Louis Legendre; Lionel Guidi; Jean-Louis Jamet; Dominique Jamet; Laure Mousseau; Maria-Luiza Pedrotti; Marc Picheral; Gabriel Gorsky; Christian Sardet; Lars Stemmann

    2015-01-01

    International audience; Ecological succession provides a widely accepted description of seasonal changes in phy-toplankton and mesozooplankton assemblages in the natural environment, but concurrent changes in smaller (i.e. microbes) and larger (i.e. macroplankton) organisms are not included in the model because plankton ranging from bacteria to jellies are seldom sampled and analyzed simultaneously. Here we studied, for the first time in the aquatic literature, the succession of marine plankt...

  5. A spatial simulation model for forest succession in the Upper Mississippi River floodplain

    Science.gov (United States)

    Yin, Y.; Wu, Y.; Bartell, S.M.

    2009-01-01

    A Markov-chain transition model (FORSUM) and Monte Carlo simulations were used to simulate the succession patterns and predict a long-term impact of flood on the forest structure and growth in the floodplain of the Upper Mississippi River and Illinois River. Model variables, probabilities, functions, and parameters were derived from the analysis of two comprehensive field surveys conducted in this floodplain. This modeling approach describes the establishment, growth, competition, and death of individual trees for modeled species on a 10,000-ha landscape with spatial resolution of 1 ha. The succession characteristics of each Monte Carlo simulation are summed up to describe forest development and dynamics on a landscape level. FORSUM simulated the impacts of flood intensity and frequency on species composition and dynamics in the Upper Mississippi River floodplain ecosystem. The model provides a useful tool for testing hypotheses about forest succession and enables ecologists and managers to evaluate the impacts of flood disturbances and ecosystem restoration on forest succession. The simulation results suggest that the Markov-chain Monte Carlo method is an efficient tool to help organize the existing data and knowledge of forest succession into a system of quantitative predictions for the Upper Mississippi River floodplain ecosystem. ?? 2009 Elsevier B.V.

  6. New Coefficients of the Minority Carrier Lifetime and Bandgap Narrowing Models in the Transparent Emitter of Thin Film Silicon Solar Cells

    OpenAIRE

    2001-01-01

    In this study we have determined new coefficients for the physical model describing the band-gap narrowing and the minority carriers lifetime. This was accomplished according to the doping level of the thin emitter. This model allows us to take into account both the effects of the heavy doping and the majority carrier degeneration for the very high level of doping. The results we obtain by the corrected model are in good agreement with those reported in the literature and in di...

  7. Can the Epstein Model of Parental Involvement Work in a High-Minority, High-Poverty Elementary School? A Case Study

    Science.gov (United States)

    Bower, Heather A.; Griffin, Dana

    2011-01-01

    The literature has lauded parental involvement as an effective strategy to increase student achievement, but schools still struggle with how to effectively involve parents of color and low-income families. In an effort to assess the effectiveness of the Epstein Model of Parental Involvement in high-poverty, high-minority schools, the authors…

  8. Can the Epstein Model of Parental Involvement Work in a High-Minority, High-Poverty Elementary School? A Case Study

    Science.gov (United States)

    Bower, Heather A.; Griffin, Dana

    2011-01-01

    The literature has lauded parental involvement as an effective strategy to increase student achievement, but schools still struggle with how to effectively involve parents of color and low-income families. In an effort to assess the effectiveness of the Epstein Model of Parental Involvement in high-poverty, high-minority schools, the authors…

  9. The first draft genome of the aquatic model plant Lemna minor opens the route for future stress physiology research and biotechnological applications.

    Science.gov (United States)

    Van Hoeck, Arne; Horemans, Nele; Monsieurs, Pieter; Cao, Hieu Xuan; Vandenhove, Hildegarde; Blust, Ronny

    2015-01-01

    Freshwater duckweed, comprising the smallest, fastest growing and simplest macrophytes has various applications in agriculture, phytoremediation and energy production. Lemna minor, the so-called common duckweed, is a model system of these aquatic plants for ecotoxicological bioassays, genetic transformation tools and industrial applications. Given the ecotoxic relevance and high potential for biomass production, whole-genome information of this cosmopolitan duckweed is needed. The 472 Mbp assembly of the L. minor genome (2n = 40; estimated 481 Mbp; 98.1 %) contains 22,382 protein-coding genes and 61.5 % repetitive sequences. The repeat content explains 94.5 % of the genome size difference in comparison with the greater duckweed, Spirodela polyrhiza (2n = 40; 158 Mbp; 19,623 protein-coding genes; and 15.79 % repetitive sequences). Comparison of proteins from other monocot plants, protein ortholog identification, OrthoMCL, suggests 1356 duckweed-specific groups (3367 proteins, 15.0 % total L. minor proteins) and 795 Lemna-specific groups (2897 proteins, 12.9 % total L. minor proteins). Interestingly, proteins involved in biosynthetic processes in response to various stimuli and hydrolase activities are enriched in the Lemna proteome in comparison with the Spirodela proteome. The genome sequence and annotation of L. minor protein-coding genes provide new insights in biological understanding and biomass production applications of Lemna species.

  10. A Partial Test and Development of Delone and Mclean's Model of IS Success

    Directory of Open Access Journals (Sweden)

    Peter Seddon

    1996-11-01

    Full Text Available DeLone and McLean's (1992 comprehensive review of different information system success measures concludes with a model of interrelationships between six IS Success constructs. This paper critically examines the meaning of four of these constructs and the evidence of relationships between them. It then provides results from empirical tests of these relationships. Tests are conducted using both conventional ordinary least squares regression path analysis and structural equation modeling - with substantially similar results. The empirical results provide substantial support for the "up stream" two thirds of DeLone and McLean's model. Three factors. System Quality, Information Quality, and Usefulness, are found to explain 75% of the variance in the overall User Satisfaction measure. The empirical results also provide substantial support for the use of usefulness as an IS success measure, and of the hitherto-unreported importance of "Importance of the task" in user perceptions of IS usefulness.

  11. Open Source Software Success Model for Iran: End-User Satisfaction Viewpoint

    Directory of Open Access Journals (Sweden)

    Ali Niknafs

    2012-03-01

    Full Text Available The open source software development is notable option for software companies. Recent years, many advantages of this software type are cause of move to that in Iran. National security and international restrictions problems and also software and services costs and more other problems intensified importance of use of this software. Users and their viewpoints are the critical success factor in the software plans. But there is not an appropriate model for open source software case in Iran. This research tried to develop a measuring open source software success model for Iran. By use of data gathered from open source users and online survey the model was tested. The results showed that components by positive effect on open source success were user satisfaction, open source community services quality, open source quality, copyright and security.

  12. Theoretical Model of User Acceptance: In the View of Measuring Success in Web Personalization

    OpenAIRE

    Amin, Mohd Afandi Md; Nayak, Richi

    2010-01-01

    International audience; This paper attempts to develop a theoretical acceptance model for measuring Web personalization success. Key factors impacting Web personalization acceptance are identified from a detailed literature review. The final model is then cast in a structural equation modeling (SEM) framework comprising nineteen manifest variables, which are grouped into three focal behaviors of Web users. These variables could provide a framework for better understanding of numerous factors ...

  13. Understanding a Father-Daughter Succession Case: Applying the 5+5+5 Bernelli Model

    Directory of Open Access Journals (Sweden)

    Leann Mischel

    2011-01-01

    Full Text Available Problem statement: Research on father-daughter succession in family businesses has only recently begun to get some traction. Still, examples of these situations often elude researchers. Futhermore, there has not been adequate attention paid to how children are raised in family businesses and how they learn to be entrepreneurial. Approach: This study outlines a father-daughter succession case in this unique American setting-the Appalachian Mountains of West Virginia. West Virginia offers an opportunity to examine family businesses embedded in the Appalachian culture-one where much of the popular and scholarly literature contend that deficiencies have contributed to, or reinforced, economic poverty and backwardness. These ideals are now being challenged and this case offers evidence of reversal. We also use the Bernelli 5+5+5 Model as a lens through which to examine the daughter’s entrepreneurial growth in this case. Results: The Bernelli 5+5+5 Model allowed us to structure the daughter’s experiences and better understand how she got to be such a successful successor. Conclusion/Recommendations: We recommend that the Bernelli 5+5+5 Model be used as a framework to view succession in family businesses. The Model also serves as a lens through which to view and better understand how children raised in family businesses become more successful entrepreneurs as adults.

  14. Models for Measuring E-Learning Success in Universities: A Literature Review

    Directory of Open Access Journals (Sweden)

    Iuliana DOROBAT (SCORTA

    2014-01-01

    Full Text Available It is obvious that in the Internet era the higher education institutions (HEIs must innovate the services they offer by integrating ICT (Information and Communication Technology in the learning process. According to the theoreticians and practitioners insights in the matter, the e-learning systems offer many advantages and compensate the weaknesses of the traditional learning methods. In consequence, it emerged the need for developing a model that measures the success of the e-learning systems. This paper presents results of the research conducted in order to develop a comprehensive model for measuring e-learning system success in universi-ties.

  15. Critical success factors model developing for sustainable Kaizen implementation in manufactur-ing industry in Ethiopia

    Directory of Open Access Journals (Sweden)

    Haftu Hailu

    2017-12-01

    Full Text Available The purpose of the research is to identify critical success factors and model developing for sustaining kaizen implementation. Peacock shoe is one of the manufacturing industries in Ethiopia facing challenges on sustaining. The methodology followed is factor analysis and empirically testing hypothesis. A database was designed using SPSS version 20. The survey was validated using statistical validation using the Cronbach alpha index; the result is 0.908. The KMO index value was obtained for the 32 items and had a value of 0.642 with Bartlett's Test of Sphericity Approx. Chi-Square 4503.007, degree of freedom 496 and significance value 0.000. A factor analysis by principal components and varimax rotation was applied for finding the critical success factors. Finding designates that 32 items were merged into eight critical success factors. All the eight factors together explain for 76.941 % of the variance. Multiple regression model analysis has indicated that some of the critical success factors had relationship with success indicators. Due to constraint of time, the researcher focused only at peacock shoe manufacturing industry. Other limitation also includes the absence of any local research that shows the critical success factors at the moment.

  16. Experienced Practitioners’ Beliefs Utilized to Create a Successful Massage Therapist Conceptual Model: a Qualitative Investigation

    Science.gov (United States)

    Kennedy, Anne B.; Munk, Niki

    2017-01-01

    Background The massage therapy profession in the United States has grown exponentially, with 35% of the profession’s practitioners in practice for three years or less. Investigating personal and social factors with regard to the massage therapy profession could help to identify constructs needed to be successful in the field. Purpose This data-gathering exercise explores massage therapists’ perceptions on what makes a successful massage therapist that will provide guidance for future research. Success is defined as supporting oneself and practice solely through massage therapy and related, revenue-generating field activity. Participants and Setting Ten successful massage therapy practitioners from around the United States who have a minimum of five years of experience. Research Design Semistructured qualitative interviews were used in an analytic induction framework; index cards with preidentified concepts printed on them were utilized to enhance conversation. An iterative process of interview coding and analysis was used to determine themes and subthemes. Results Based on the participants input, the categories in which therapists needed to be successful were organized into four main themes: effectively establish therapeutic relationships, develop massage therapy business acumen, seek valuable learning environments and opportunities, and cultivate strong social ties and networks. The four themes operate within specific contexts (e.g., regulation and licensing requirements in the therapists’ state), which may also influence the success of the massage therapist. Conclusions The model needs to be tested to explore which constructs explain variability in success and attrition rate. Limitations and future research implications are discussed. PMID:28690704

  17. Minority Language Rights.

    Science.gov (United States)

    O Riagain, Padraig; Shuibhne, Niamh Nic

    1997-01-01

    A survey of literature since 1990 on minority languages and language rights focuses on five issues: definition of minorities; individual vs. collective rights; legal bases for minority linguistic rights; applications and interpretations of minority language rights; and assessments of the impact of minority rights legislation. A nine-item annotated…

  18. Information System Success Model for Customer Relationship Management System in Health Promotion Centers

    Science.gov (United States)

    Choi, Wona; Rho, Mi Jung; Park, Jiyun; Kim, Kwang-Jum; Kwon, Young Dae

    2013-01-01

    Objectives Intensified competitiveness in the healthcare industry has increased the number of healthcare centers and propelled the introduction of customer relationship management (CRM) systems to meet diverse customer demands. This study aimed to develop the information system success model of the CRM system by investigating previously proposed indicators within the model. Methods The evaluation areas of the CRM system includes three areas: the system characteristics area (system quality, information quality, and service quality), the user area (perceived usefulness and user satisfaction), and the performance area (personal performance and organizational performance). Detailed evaluation criteria of the three areas were developed, and its validity was verified by a survey administered to CRM system users in 13 nationwide health promotion centers. The survey data were analyzed by the structural equation modeling method, and the results confirmed that the model is feasible. Results Information quality and service quality showed a statistically significant relationship with perceived usefulness and user satisfaction. Consequently, the perceived usefulness and user satisfaction had significant influence on individual performance as well as an indirect influence on organizational performance. Conclusions This study extends the research area on information success from general information systems to CRM systems in health promotion centers applying a previous information success model. This lays a foundation for evaluating health promotion center systems and provides a useful guide for successful implementation of hospital CRM systems. PMID:23882416

  19. Information system success model for customer relationship management system in health promotion centers.

    Science.gov (United States)

    Choi, Wona; Rho, Mi Jung; Park, Jiyun; Kim, Kwang-Jum; Kwon, Young Dae; Choi, In Young

    2013-06-01

    Intensified competitiveness in the healthcare industry has increased the number of healthcare centers and propelled the introduction of customer relationship management (CRM) systems to meet diverse customer demands. This study aimed to develop the information system success model of the CRM system by investigating previously proposed indicators within the model. THE EVALUATION AREAS OF THE CRM SYSTEM INCLUDES THREE AREAS: the system characteristics area (system quality, information quality, and service quality), the user area (perceived usefulness and user satisfaction), and the performance area (personal performance and organizational performance). Detailed evaluation criteria of the three areas were developed, and its validity was verified by a survey administered to CRM system users in 13 nationwide health promotion centers. The survey data were analyzed by the structural equation modeling method, and the results confirmed that the model is feasible. Information quality and service quality showed a statistically significant relationship with perceived usefulness and user satisfaction. Consequently, the perceived usefulness and user satisfaction had significant influence on individual performance as well as an indirect influence on organizational performance. This study extends the research area on information success from general information systems to CRM systems in health promotion centers applying a previous information success model. This lays a foundation for evaluating health promotion center systems and provides a useful guide for successful implementation of hospital CRM systems.

  20. Quantum annealing correction with minor embedding

    Science.gov (United States)

    Vinci, Walter; Albash, Tameem; Paz-Silva, Gerardo; Hen, Itay; Lidar, Daniel A.

    2015-10-01

    Quantum annealing provides a promising route for the development of quantum optimization devices, but the usefulness of such devices will be limited in part by the range of implementable problems as dictated by hardware constraints. To overcome constraints imposed by restricted connectivity between qubits, a larger set of interactions can be approximated using minor embedding techniques whereby several physical qubits are used to represent a single logical qubit. However, minor embedding introduces new types of errors due to its approximate nature. We introduce and study quantum annealing correction schemes designed to improve the performance of quantum annealers in conjunction with minor embedding, thus leading to a hybrid scheme defined over an encoded graph. We argue that this scheme can be efficiently decoded using an energy minimization technique provided the density of errors does not exceed the per-site percolation threshold of the encoded graph. We test the hybrid scheme using a D-Wave Two processor on problems for which the encoded graph is a two-level grid and the Ising model is known to be NP-hard. The problems we consider are frustrated Ising model problem instances with "planted" (a priori known) solutions. Applied in conjunction with optimized energy penalties and decoding techniques, we find that this approach enables the quantum annealer to solve minor embedded instances with significantly higher success probability than it would without error correction. Our work demonstrates that quantum annealing correction can and should be used to improve the robustness of quantum annealing not only for natively embeddable problems but also when minor embedding is used to extend the connectivity of physical devices.

  1. Stereotypes as a Measure of Success

    Science.gov (United States)

    Sue, Stanley; Kitano, Harry H. L.

    1973-01-01

    Whereas early Chinese and Japanese stereotypes were uniformly negative, reflecting the social, economic, and political climate in America, currently these Asian American groups are viewed as highly successful, model minorities; it is suggested that some stereotypes have a kernel of truth. (Author/JM)

  2. What Works Clearinghouse Quick Review: "A Model for Success: CART's Linked Learning Program Increases College Enrollment"

    Science.gov (United States)

    What Works Clearinghouse, 2012

    2012-01-01

    The study, "A Model for Success: CART's Linked Learning Program Increases College Enrollment" examined whether students who enrolled in courses at a high school that combined academics and technical education had higher college enrollment rates than students who did not. The research described in this report does not meet What Works…

  3. A Model-Based Approach for Visualizing the Dimensional Structure of Ordered Successive Categories Preference Data

    Science.gov (United States)

    DeSarbo, Wayne S.; Park, Joonwook; Scott, Crystal J.

    2008-01-01

    A cyclical conditional maximum likelihood estimation procedure is developed for the multidimensional unfolding of two- or three-way dominance data (e.g., preference, choice, consideration) measured on ordered successive category rating scales. The technical description of the proposed model and estimation procedure are discussed, as well as the…

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

    Science.gov (United States)

    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'…

  5. The Groningen Active Living Model, an example of successful recruitment of sedentary and underactive older adults

    NARCIS (Netherlands)

    Stevens, Martin; de Jong, Johan; Lemmink, Koen A. P. M.

    2008-01-01

    Objective. Many physical activity interventions do not reach those people who would benefit the most from them. The Groningen Active Living Model (GALM) was successful in recruiting sedentary and underactive older adults. Method. In the fall of 2000 older adults in three municipalities in the Nether

  6. The Success of a Policy Model: Irrigation Management Transfer in Mexico

    NARCIS (Netherlands)

    Rap, E.R.

    2006-01-01

    The Mexican policy of Irrigation Management Transfer has been widely propagated as a success and has become a model for other countries seeking to improve the performance of their irrigation systems while also cutting public expenditures. This article analyses the process of policy-making that has g

  7. Creating a Successful Training Program for Frontline Staff: The University of Minnesota's Integrated Student Services Model

    Science.gov (United States)

    Peterson, Heather L.; Otto, Carrie L.

    2011-01-01

    Successfully preparing frontline counseling staff in an integrated student services model is a challenge--one that management staff in One Stop Student Services at the University of Minnesota, Twin Cities (UMTC) have been fine-tuning for almost ten years. The effort has required collaboration across units in a series of trial and error attempts…

  8. Compensatory hypertrophy of the teres minor muscle after large rotator cuff tear model in adult male rat.

    Science.gov (United States)

    Ichinose, Tsuyoshi; Yamamoto, Atsushi; Kobayashi, Tsutomu; Shitara, Hitoshi; Shimoyama, Daisuke; Iizuka, Haku; Koibuchi, Noriyuki; Takagishi, Kenji

    2016-02-01

    Rotator cuff tear (RCT) is a common musculoskeletal disorder in the elderly. The large RCT is often irreparable due to the retraction and degeneration of the rotator cuff muscle. The integrity of the teres minor (TM) muscle is thought to affect postoperative functional recovery in some surgical treatments. Hypertrophy of the TM is found in some patients with large RCTs; however, the process underlying this hypertrophy is still unclear. The objective of this study was to determine if compensatory hypertrophy of the TM muscle occurs in a large RCT rat model. Twelve Wistar rats underwent transection of the suprascapular nerve and the supraspinatus and infraspinatus tendons in the left shoulder. The rats were euthanized 4 weeks after the surgery, and the cuff muscles were collected and weighed. The cross-sectional area and the involvement of Akt/mammalian target of rapamycin (mTOR) signaling were examined in the remaining TM muscle. The weight and cross-sectional area of the TM muscle was higher in the operated-on side than in the control side. The phosphorylated Akt/Akt protein ratio was not significantly different between these sides. The phosphorylated-mTOR/mTOR protein ratio was significantly higher on the operated-on side. Transection of the suprascapular nerve and the supraspinatus and infraspinatus tendons activates mTOR signaling in the TM muscle, which results in muscle hypertrophy. The Akt-signaling pathway may not be involved in this process. Nevertheless, activation of mTOR signaling in the TM muscle after RCT may be an effective therapeutic target of a large RCT. Copyright © 2016 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.

  9. An exploratory analysis of the model for understanding success in quality.

    Science.gov (United States)

    Kaplan, Heather C; Froehle, Craig M; Cassedy, Amy; Provost, Lloyd P; Margolis, Peter A

    2013-01-01

    Experience suggests that differences in context produce variability in the effectiveness of quality improvement (QI) interventions. However, little is known about which contextual factors affect success or how they exert influence. Using the Model for Understanding Success in Quality (MUSIQ), we perform exploratory quantitative tests of the role of context in QI success. We used a cross-sectional design to survey individuals participating in QI projects in three settings: a pediatric hospital, hospitals affiliated with a state QI collaborative, and organizations sponsoring participants in an improvement advisor training program. Individuals participating in QI projects completed a questionnaire assessing contextual factors included in MUSIQ and measures of perceived success. Path analysis was used to test the direct, indirect, and total effects of context variables on QI success as hypothesized in MUSIQ. In the 74 projects studied, most contextual factors in MUSIQ were found to be significantly related to at least one QI project performance outcome. Contextual factors exhibiting significant effects on two measures of perceived QI success included resource availability, QI team leadership, team QI skills, microsystem motivation, microsystem QI culture, and microsystem QI capability. There was weaker evidence for effects of senior leader project sponsors, organizational QI culture, QI team decision-making, and microsystem QI leadership. These initial tests add to the validity of MUSIQ as a tool for identifying which contextual factors affect improvement success and understanding how they exert influence. Using MUSIQ, managers and QI practitioners can begin to identify aspects of context that must be addressed before or during the execution of QI projects and plan strategies to modify context for increased success. Additional work by QI researchers to improve the theory, refine measurement approaches, and validate MUSIQ as a predictive tool in a wider range of QI

  10. 西北少数民族传统体育发展模式研究%The Research on Development Model of Northwest National Minority Traditional Sport

    Institute of Scientific and Technical Information of China (English)

    闫艺

    2012-01-01

    运用文献资料法、专家访谈法、实地调查法等方法对西北少数民族传统体育的发展模式进行了研究,旨在为西北少数民族传统体育的传承方式提供理论参考。研究表明:"学校体育教育"发展模式是西北少数民族传统体育在学校传承的最佳路径;"社会市场化"发展模式是西北少数民族传统体育在社会发展的主要路径;"全民健身"发展模式是西北少数民族传统体育发展的自然选择;"城市旅游景点式"发展模式是西北少数民族传统体育在城市发展的最佳方式;"民俗节庆式"发展模式是西北少数民族传统体育在农村发展的主要方式;"民运会"发展模式是保证西北少数民族传统体育形成制度化和可持续发展的基石。%Using the method of literature, expert interview,, field investigation method and so on to northwest national minority tradition sports development mode undertook study; designed on northwest minority traditional sports inheritance way is to provide theoretical reference. Research shows that:" the school physical education" development mode is the northwest ethnic minority traditional sports in school on the best path; "social marketing" development model is in the northwest minority traditional sports and the social development main way; "national fitness" development mode is the northwest national minority tradition sports development of natural selection; "city tourism attraction type" development mode is the people living in the city of northwest minority traditional sports inheritance best way; "folk festival type" development mode is northwest minority traditional sports in rural development main way; "democratic movement" development mode is the guarantee of northwest minority traditional sports form system and the foundation of the sustainable development.

  11. Understanding Minor Rectal Bleeding

    Science.gov (United States)

    ... Home / For Patients / Patient Information Understanding Minor Rectal Bleeding What are the possible causes of minor rectal bleeding? Hemorrhoids Anal fissures Proctitis (inflammation of the rectum) ...

  12. Incorporating the user perspective into a proposed model for assessing success of SHS implementations

    Directory of Open Access Journals (Sweden)

    Hans Holtorf

    2015-10-01

    Full Text Available Modern energy can contribute to development in multiple ways while approximately 20% of world's populations do not yet have access to electricity. Solar Home Systems (SHSs consists of a PV module, a charge controller and a battery supply in the range of 100 Wh/d in Sunbelt countries. The question addressed in this paper is how SHS users approach success of their systems and how these user's views can be integrated in to an existing model of success. Information was obtained on the user's approach to their SHSs by participatory observation, interviews with users and by self-observation undertaken by the lead author while residing under SHS electricity supply conditions. It was found that success of SHSs from the users' point of view is related to the ability of these systems to reduce the burdens of supplying energy services to homesteads. SHSs can alleviate some energy supply burdens, and they can improve living conditions by enabling communication on multiple levels and by addressing convenience and safety concerns. However, SHSs do not contribute to the energy services which are indispensable for survival, nor to the thermal energy services required and desired in dwellings of Sunbelt countries. The elements of three of the four components of our previously proposed model of success have been verified and found to be appropriate, namely the user's self-set goals, their importance and SHSs' success factors. The locally appropriate, and scientifically satisfactory, measurement of the level of achievement of self-set goals, the fourth component of our model of success, remains an interesting area for future research.

  13. Theory of Networked Minority Games based on Strategy Pattern Dynamics

    OpenAIRE

    Lo, T. S.; H.Y. Chan; P.M. Hui; Johnson, N F

    2004-01-01

    We formulate a theory of agent-based models in which agents compete to be in a winning group. The agents may be part of a network or not, and the winning group may be a minority group or not. The novel feature of the present formalism is its focus on the dynamical pattern of strategy rankings, and its careful treatment of the strategy ties which arise during the system's temporal evolution. We apply it to the Minority Game (MG) with connected populations. Expressions for the mean success rate...

  14. A Primary Human Critical Success Factors Model for the ERP System Implementation

    Directory of Open Access Journals (Sweden)

    Jenko Aleksander

    2016-08-01

    Full Text Available Background and Purpose: Many researchers have investigated various Critical success factors (CSFs and the different causes of ERP implementation project failures. Despite a detailed literature preview, we were unable to find an appropriate research with a comprehensive overview of the true causes behind CSFs, observed from a human factors perspective. The objective of this research was therefore to develop and evaluate the Primary human factors (PHFs model and to confirm the significant impact of PHFs on traditional CSFs and on the project success.

  15. Modeling succession of key resource-harvesting traits of mixotrophic plankton

    DEFF Research Database (Denmark)

    Berge, Terje; Chakraborty, Subhendu; Hansen, Per Juel

    2017-01-01

    -based model for mixotrophy with three key resource-harvesting traits: photosynthesis, phagotrophy and inorganic nutrient uptake, which predicts the trophic strategy of species throughout the seasonal cycle. Assuming that simple carbohydrates from photosynthesis fuel respiration, and feeding primarily provides...... in the spring and increased phagotrophy during the summer, reflecting general seasonal succession patterns of temperate waters. Our trait-based model presents a simple and general approach for the inclusion of mixotrophy, succession and evolution in ecosystem models.The ISME Journal advance online publication......Unicellular eukaryotes make up the base of the ocean food web and exist as a continuum in trophic strategy from pure heterotrophy (phagotrophic zooplankton) to pure photoautotrophy (‘phytoplankton’), with a dominance of mixotrophic organisms combining both strategies. Here we formulate a trait...

  16. The Minority Game : An Economics Perspective

    NARCIS (Netherlands)

    Kets, W.

    2007-01-01

    This paper gives a critical account of the minority game literature. The minority game is a simple congestion game: players need to choose between two options, and those who have selected the option chosen by the minority win. The learning model proposed in this literature seems to differ markedly

  17. An investigation of potential success factors for an introductory model-driven programming course

    DEFF Research Database (Denmark)

    Bennedsen, Jens; Caspersen, Michael Edelgaard

    2005-01-01

    In order to improve the course design of a CS1 model-driven programming course we study potential indicators of success for such a course. We explain our specific interpretation of objects-first. Of eight potential indicators of success, we have found only two to be significant at a 95% confidence...... on the success factors for objects-first programming......., the impact of our findings on teaching, limits of what to conclude from the available data, and the variety of the notion "objects-first". Because of the variety of interpretations of "objects-first", the present research is necessary as a supplement to earlier research in order to make generalizable results...

  18. Providing a Model for Successful Implementation of Customer Relationship Management (Case Study: Zahedan Industrial City

    Directory of Open Access Journals (Sweden)

    Amin-Reza Kamalian

    2013-05-01

    Full Text Available This study presents a model for Successful Implementation of Customer Relationship Management (CRM for small and medium-sized enterprises (SMEs in Zahedan industrial city. Having extensive theoretical study, the factors influencing the success of customer relationship management were identified. Using a standard questionnaire with reliability of 96.2 percent (Cronbach's alpha coefficient, existing and desired situations of these factors were compared by experts' point of view. Research population consists of industrialists and professionals in Zahedan industrial city. Because of small population size, data obtained by the entire population; i.e. 54 companies. This applied study is in descriptive-analytical type. Data analysis was performed using SPSS software. Results indicated that all factors affecting the success of implementing customer relationship management, except technology, are used in these companies.

  19. When Should Nintendo Launch its Wii? Insights From a Bivariate Successive Generation Model

    OpenAIRE

    Franses, Philip Hans; Hernández-Mireles, Carlos

    2006-01-01

    textabstractNovember 2006 most likely marks the launch of Sony’s PS3, the successor to PS2. Later, Nintendo is expected to launch the Wii, the successor to the GameCube. We answer the question in the title by analyzing the diffusion of the earlier generations of these consoles, and by using a new model that extends the successive-generations model of Norton and Bass (1987) by introducing two market players. Based on interviews with consumers and with retailers, we calibrate part of this model...

  20. CASE OF SUCCESSFUL APPLICATION OF METHOD FOR 3D VISUALIZATION AND MODELING IN THORACIC ONCOLOGY

    Directory of Open Access Journals (Sweden)

    S. V. Shchadenko

    2016-01-01

    Full Text Available Aim. The application of method of 3D-visualization and modeling in thoracic oncology is described.Materials and methods. The block diagram of system of 3D-visualization and modeling consisting of six stages is shown. The reconstructions of anatomic computer 3D-models of rib cage and tumor were performed for the patient with cancer (plasma cell myeloma. The tumor size and its topographic anatomy relatively to neighboring organs, bones and soft tissues were identified. Results.The obtained data had been used to plan surgical intervention, which was successfully conducted at Thoracic surgery department ofTomskRegionalClinicalHospital. 

  1. Project Sugar: a recruitment model for successful African-American participation in health research.

    Science.gov (United States)

    Spruill, Ida

    2004-12-01

    Attempts to increase the number of African-Americans participating in clinical trials, regardless of age, have been hampered by a lack of published data regarding successful recruitment and retention strategies. Successful strategies can be used as a guide for future researchers in the design of studies to recruit African-Americans, regardless of age, into clinical as well as qualitative studies to promote health among this vulnerable population. The goal of the primary study was to recruit 400 families with 2 or more family members affected with diabetes, totaling 800 participants. Project Sugar utilized the coordinated research principals known as CPR (Community, Plan, Reward) to recruit 615 African-American families totalling 1,230 people known as the Sea Island people (Gullahs) in the first five years of the study. The intention of the study was to identify markers for diabetes among these Sea Island natives who tended to be genetically homogenous. In so doing, specific strategies were identified as serendipitous findings for this study. Nonetheless, these serendipitous findings were thought to be so integral to success in the recruitment of African-Americans, mainly because of their success among this fairly close-knit, historically isolated, and significantly genetically homogenous Sea Islanders (Gullah). In recognizing the success of this model, an alternate aim was examined to devise rigorous scientific strategies to promote methods for recruitment of African-Americans into clinical trials aimed at reducing health disparities among this vulnerable population. This projects success can be attributed to the involvement of a local citizen advisory committee and rewards in the form of services, benefits, and incentives to the community. Findings from this alternative aim, which was scientifically built on the CPR model, suggest that when services are provided to the community, coupled with the use of local community advisory committees, the possibilities of

  2. Group Dynamics in Top Management Teams: Groupthink, Vigilance, and Alternative Models of Organizational Failure and Success.

    Science.gov (United States)

    Peterson; Owens; Tetlock; Fan; Martorana

    1998-02-01

    This study explored the heuristic value of Janis' (1982) groupthink and vigilant decision making models as explanations of failure and success in top management team decision making using the Organizational Group Dynamics Q-sort (GDQ). Top management teams of seven Fortune 500 companies were examined at two historical junctures-one when the team was successful (defined as satisfying strategic constituencies) and one when the team was unsuccessful. Results strongly supported the notion that a group' decision making process is systematically related to the outcomes experienced by the team. Ideal-type Q-sorts organized around Janis' analysis of groupthink and vigilance were substantially correlated with Q-sorts of failing and successful groups, respectively. The fit was, however, far from perfect. Ideal-type Q-sorts derived from other frameworks correlated better with the failure-success classification than did the Janis-derived ideal types. Successful groups showed some indicators of groupthink (e.g., risk-taking, cohesion, and strong, opinionated leaders), whereas unsuccessful groups showed signs of vigilance (e.g., internal debate to the point of factionalism). The results illustrate the usefulness of the GDQ for developing and empirically testing theory in organizational behavior from historical cases. Copyright 1998 Academic Press.

  3. Validation of the DeLone and McLean Information Systems Success Model.

    Science.gov (United States)

    Ojo, Adebowale I

    2017-01-01

    This study is an adaptation of the widely used DeLone and McLean information system success model in the context of hospital information systems in a developing country. A survey research design was adopted in the study. A structured questionnaire was used to collect data from 442 health information management personnel in five Nigerian teaching hospitals. A structural equation modeling technique was used to validate the model's constructs. It was revealed that system quality significantly influenced use (β = 0.53, p 0.05), but it significantly influenced perceived net benefits (β = 0.21, p 0.05). The study validates the DeLone and McLean information system success model in the context of a hospital information system in a developing country. Importantly, system quality and use were found to be important measures of hospital information system success. It is, therefore, imperative that hospital information systems are designed in such ways that are easy to use, flexible, and functional to serve their purpose.

  4. Validation of the DeLone and McLean Information Systems Success Model

    Science.gov (United States)

    2017-01-01

    Objectives This study is an adaptation of the widely used DeLone and McLean information system success model in the context of hospital information systems in a developing country. Methods A survey research design was adopted in the study. A structured questionnaire was used to collect data from 442 health information management personnel in five Nigerian teaching hospitals. A structural equation modeling technique was used to validate the model's constructs. Results It was revealed that system quality significantly influenced use (β = 0.53, p 0.05), but it significantly influenced perceived net benefits (β = 0.21, p 0.05). Conclusions The study validates the DeLone and McLean information system success model in the context of a hospital information system in a developing country. Importantly, system quality and use were found to be important measures of hospital information system success. It is, therefore, imperative that hospital information systems are designed in such ways that are easy to use, flexible, and functional to serve their purpose. PMID:28261532

  5. The first draft genome of the aquatic model plant Lemna minor opens the route for future stress physiology research and biotechnological applications

    OpenAIRE

    Van Hoeck, Arne; Horemans, Nele; Monsieurs, Pieter; Cao, Hieu Xuan; Vandenhove, Hildegarde; Blust, Ronny

    2015-01-01

    Background Freshwater duckweed, comprising the smallest, fastest growing and simplest macrophytes has various applications in agriculture, phytoremediation and energy production. Lemna minor, the so-called common duckweed, is a model system of these aquatic plants for ecotoxicological bioassays, genetic transformation tools and industrial applications. Given the ecotoxic relevance and high potential for biomass production, whole-genome information of this cosmopolitan duckweed is needed. Resu...

  6. Modelled three-dimensional suction accuracy predicts prey capture success in three species of centrarchid fishes

    Science.gov (United States)

    Kane, Emily A.; Higham, Timothy E.

    2014-01-01

    Prey capture is critical for survival, and differences in correctly positioning and timing a strike (accuracy) are likely related to variation in capture success. However, an ability to quantify accuracy under natural conditions, particularly for fishes, is lacking. We developed a predictive model of suction hydrodynamics and applied it to natural behaviours using three-dimensional kinematics of three centrarchid fishes capturing evasive and non-evasive prey. A spheroid ingested volume of water (IVW) with dimensions predicted by peak gape and ram speed was verified with known hydrodynamics for two species. Differences in capture success occurred primarily with evasive prey (64–96% success). Micropterus salmoides had the greatest ram and gape when capturing evasive prey, resulting in the largest and most elongate IVW. Accuracy predicted capture success, although other factors may also be important. The lower accuracy previously observed in M. salmoides was not replicated, but this is likely due to more natural conditions in our study. Additionally, we discuss the role of modulation and integrated behaviours in shaping the IVW and determining accuracy. With our model, accuracy is a more accessible performance measure for suction-feeding fishes, which can be used to explore macroevolutionary patterns of prey capture evolution. PMID:24718455

  7. New Coefficients of the Minority Carrier Lifetime and Bandgap Narrowing Models in the Transparent Emitter of Thin Film Silicon Solar Cells

    OpenAIRE

    2003-01-01

    In this study we have determined new coefficients for the physical model describing the band-gap narrowing and the minority carriers lifetime. This was accomplished according to the doping level of the thin emitter. This model allows us to take into account both the effects of the heavy doping and the majority carrier degeneration for the very high level of doping. The results we obtain by the corrected model are in good agreement with those reported in the literature and in different expe...

  8. Social Dancing for Successful Ageing: Models for Health, Happiness and Social Inclusion amongst Senior Citizens

    Directory of Open Access Journals (Sweden)

    Jonathan Skinner

    2013-03-01

    Full Text Available Abstract: This article presents findings from a qualitative study of social dancing for successful ageing amongst senior citizens in three locales: in Blackpool (GB, around Belfast (NI, and in Sacramento (US. Findings also attest to the social, psychological and health benefits of social dancing amongst senior citizens. They also articulate three different social dancing models: social dance as tea dance (Sacramento, social dance as practice dance (Blackpool, social dance as motility (Belfast and environs.

  9. Models for Measuring E-Learning Success in Universities: A Literature Review

    OpenAIRE

    Iuliana DOROBAT

    2014-01-01

    It is obvious that in the Internet era the higher education institutions (HEIs) must innovate the services they offer by integrating ICT (Information and Communication Technology) in the learning process. According to the theoreticians and practitioners insights in the matter, the e-learning systems offer many advantages and compensate the weaknesses of the traditional learning methods. In consequence, it emerged the need for developing a model that measures the success of the e-learning syst...

  10. Development of a kinetic model for the dissolution of the UO{sub 2} spent nuclear fuel. Application of the model to the minor radionuclides

    Energy Technology Data Exchange (ETDEWEB)

    Bruno, J.; Cera, E.; Duro, L.; Pon, J. [QuantiSci SL, Barcelona (Spain); Pablo, J. de [UPC, Barcelona (Spain). Dept. Enginyeria Quimica; Eriksen, Trygve [Royal Inst. of Tech., Stockholm (Sweden). Dept. of Nuclear Chemistry

    1998-05-01

    A kinetic model has been developed in order to explain the evolution of the spent fuel matrix/groundwater system. Mass balance equations have been used to follow the evolution of the system with time. The model has been calibrated by using experimental dissolution data from spent fuel leaching tests from Studsvik and KTH and from synthetic unirradiated UO{sub 2} dissolution tests from VTT. The results of the testing exercise indicate that the combination of mass balance equations together with the kinetic rate laws constitute a useful tool to model and explain experimental dissolution data available in the literature for UO{sub 2} solid phases, including uraninites, unirradiated UO{sub 2} and spent fuel. Although the key processes are well identified and understood, there are still some remaining uncertainties concerning some of the critical parameters of the model. This is particularly true for the density of UO{sub 2} sites prone to oxidation and the rates and mechanisms of the hydrogen peroxide and the combined oxygen and bicarbonate promoted dissolution of UO{sub 2} for oxidant concentration ranges relevant to the spent fuel disposal system. The mass balance kinetic model developed has been extended to minor radionuclides contained in the matrix, i.e. Pu, Tc and Sr. In the case of Pu, the model presented reproduces the behaviour of this critical radionuclide even at early contact times. As it would be expected, Tc seems to follow a different mechanism for its release with respect to the UO{sub 2} matrix dissolution, which is probably linked to the rate of oxidation of Tc metallic inclusions in the fuel. A co- dissolution process of Sr with the UO{sub 2} matrix reproduces the long term dissolution behaviour of this radionuclide, better than the initial Sr release rates 49 refs, 22 figs, 2 tables

  11. Minority workers or minority human beings? A European dilemma

    Science.gov (United States)

    Skutnabb-Kangas, Tove; Phillipson, Robert

    1996-07-01

    "European" identities may be politonymic, toponymic, ethnomyic or linguonymic (Bromley 1984). Each dimension may affect whether migrant minorities are treated as "European", and influence their schooling, integration and rights. Treatment and terminology vary in different states and periods of migration. However, the position for immigrated minorities is that they are still largely seen as workers rather than human beings with equal rights. Lack of success in schools is blamed on the migrants themselves rather than the educational system. This construction of migrants as being deficient is parallel to educational practice which falls within a UN definition of linguistic genocide, and contributes to mis-education. If current efforts in international bodies to codify educational linguistic human rights were to lead to greater support for minorities, this could assist in a redefinition of national identities and a reduction of racism and conflict.

  12. An Analytic Model for the Success Rate of a Robotic Actuator System in Hitting Random Targets.

    Science.gov (United States)

    Bradley, Stuart

    2015-11-20

    Autonomous robotic systems are increasingly being used in a wide range of applications such as precision agriculture, medicine, and the military. These systems have common features which often includes an action by an "actuator" interacting with a target. While simulations and measurements exist for the success rate of hitting targets by some systems, there is a dearth of analytic models which can give insight into, and guidance on optimization, of new robotic systems. The present paper develops a simple model for estimation of the success rate for hitting random targets from a moving platform. The model has two main dimensionless parameters: the ratio of actuator spacing to target diameter; and the ratio of platform distance moved (between actuator "firings") to the target diameter. It is found that regions of parameter space having specified high success are described by simple equations, providing guidance on design. The role of a "cost function" is introduced which, when minimized, provides optimization of design, operating, and risk mitigation costs.

  13. Comprehensive model of annual plankton succession based on the whole-plankton time series approach.

    Science.gov (United States)

    Romagnan, Jean-Baptiste; Legendre, Louis; Guidi, Lionel; Jamet, Jean-Louis; Jamet, Dominique; Mousseau, Laure; Pedrotti, Maria-Luiza; Picheral, Marc; Gorsky, Gabriel; Sardet, Christian; Stemmann, Lars

    2015-01-01

    Ecological succession provides a widely accepted description of seasonal changes in phytoplankton and mesozooplankton assemblages in the natural environment, but concurrent changes in smaller (i.e. microbes) and larger (i.e. macroplankton) organisms are not included in the model because plankton ranging from bacteria to jellies are seldom sampled and analyzed simultaneously. Here we studied, for the first time in the aquatic literature, the succession of marine plankton in the whole-plankton assemblage that spanned 5 orders of magnitude in size from microbes to macroplankton predators (not including fish or fish larvae, for which no consistent data were available). Samples were collected in the northwestern Mediterranean Sea (Bay of Villefranche) weekly during 10 months. Simultaneously collected samples were analyzed by flow cytometry, inverse microscopy, FlowCam, and ZooScan. The whole-plankton assemblage underwent sharp reorganizations that corresponded to bottom-up events of vertical mixing in the water-column, and its development was top-down controlled by large gelatinous filter feeders and predators. Based on the results provided by our novel whole-plankton assemblage approach, we propose a new comprehensive conceptual model of the annual plankton succession (i.e. whole plankton model) characterized by both stepwise stacking of four broad trophic communities from early spring through summer, which is a new concept, and progressive replacement of ecological plankton categories within the different trophic communities, as recognised traditionally.

  14. Comprehensive model of annual plankton succession based on the whole-plankton time series approach.

    Directory of Open Access Journals (Sweden)

    Jean-Baptiste Romagnan

    Full Text Available Ecological succession provides a widely accepted description of seasonal changes in phytoplankton and mesozooplankton assemblages in the natural environment, but concurrent changes in smaller (i.e. microbes and larger (i.e. macroplankton organisms are not included in the model because plankton ranging from bacteria to jellies are seldom sampled and analyzed simultaneously. Here we studied, for the first time in the aquatic literature, the succession of marine plankton in the whole-plankton assemblage that spanned 5 orders of magnitude in size from microbes to macroplankton predators (not including fish or fish larvae, for which no consistent data were available. Samples were collected in the northwestern Mediterranean Sea (Bay of Villefranche weekly during 10 months. Simultaneously collected samples were analyzed by flow cytometry, inverse microscopy, FlowCam, and ZooScan. The whole-plankton assemblage underwent sharp reorganizations that corresponded to bottom-up events of vertical mixing in the water-column, and its development was top-down controlled by large gelatinous filter feeders and predators. Based on the results provided by our novel whole-plankton assemblage approach, we propose a new comprehensive conceptual model of the annual plankton succession (i.e. whole plankton model characterized by both stepwise stacking of four broad trophic communities from early spring through summer, which is a new concept, and progressive replacement of ecological plankton categories within the different trophic communities, as recognised traditionally.

  15. An Analytic Model for the Success Rate of a Robotic Actuator System in Hitting Random Targets

    Directory of Open Access Journals (Sweden)

    Stuart Bradley

    2015-11-01

    Full Text Available Autonomous robotic systems are increasingly being used in a wide range of applications such as precision agriculture, medicine, and the military. These systems have common features which often includes an action by an “actuator” interacting with a target. While simulations and measurements exist for the success rate of hitting targets by some systems, there is a dearth of analytic models which can give insight into, and guidance on optimization, of new robotic systems. The present paper develops a simple model for estimation of the success rate for hitting random targets from a moving platform. The model has two main dimensionless parameters: the ratio of actuator spacing to target diameter; and the ratio of platform distance moved (between actuator “firings” to the target diameter. It is found that regions of parameter space having specified high success are described by simple equations, providing guidance on design. The role of a “cost function” is introduced which, when minimized, provides optimization of design, operating, and risk mitigation costs.

  16. Comprehensive benefit of flood resources utilization through dynamic successive fuzzy evaluation model: A case study

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    Taking the flood resources utilization in Baicheng, Jilin during 2002–2007 as the research background, and based on the entropy weight and multi-level & multi-objective fuzzy optimization theory, this research established a multi-level & semi-constructive index system and dynamic successive evaluation model for comprehensive benefit evaluation of regional flood resources utilization. With the year 2002 as the base year, the analyzing results showed that there existed a close positive correlation between flood utilization volume and its benefits, comprehensive evaluation value and its comparison increment. Within the six successive evaluation years, the comprehensive benefit of 2003 was the best, in which the benefit evaluation increment reached 82.8% whereas the year of 2004 was the worst, in which the increment was only 18.2%. Thus the sustainability and correctness of the evaluation were verified by six years successive evaluation and increment comparison. The analyzing results showed that the economic benefits, ecological benefits and social benefits of flood utilization were remarkable, and that the comprehensive benefit could be improved by increasing flood utilization capacity, which would promote the regional sustainable development as well. The established dynamic successive evaluation provides a stable theoretical basis and technical support for further flood utilization.

  17. A Blueprint for Success: A Model for Developing Engineering Education in the UK

    Directory of Open Access Journals (Sweden)

    Melanie Rose Nova King

    2014-03-01

    Full Text Available This paper details the emergence and development of the ‘Centre for Engineering and Design Education’ (CEDE at Loughborough University, UK, and provides a blueprint for success. With ample evidence that such a Centre can prove to be a highly effective support mechanism for discipline-specific academics and can develop and maintain valuable national and international networks and collaborations along with considerable esteem for the host university. The CEDE is unique in the UK and has achieved considerable success and recognition within the local engineering education community and beyond for the past 16 years. Here we discuss the historical background of the Centre’s development, the context in which it operates, and its effective management and operation strategy. The success it has enjoyed is described through examples, with much evidence of the generation of a significant amount of external funding; the development of high quality learning spaces; learning technology systems, open source software and improvements in curriculum design; a strong record of research and publication on the pedagogy of engineering; strong links with industry and employers; and a wealth of connections and know-how built up over the years. This paper provides the institutions with a model blueprint for success in developing engineering education.

  18. Mouse models for studying genetic influences on factors determining smoking cessation success in humans

    Science.gov (United States)

    Hall, F. Scott; Markou, Athina; Levin, Edward D.; Uhl, George R.

    2014-01-01

    Humans differ in their ability to quit using addictive substances, including nicotine, the major psychoactive ingredient in tobacco. For tobacco smoking, a substantial body of evidence, largely derived from twin studies, indicates that approximately half of these individual differences in ability to quit are heritable [1, 2], genetic influences that likely overlap with those for other addictive substances [3]. Both twin and molecular genetic studies support overlapping influences on nicotine addiction vulnerability and smoking cessation success, although there is little formal analysis of the twin data that supports this important point [2, 3]. None of the current datasets provides clear data concerning which heritable factors might provide robust dimensions around which individuals differ in ability to quit smoking. One approach to this problem is to test mice with genetic variations in genes that contain human variants that alter quit-success. This review considers which features of quit success should be included in a comprehensive approach to elucidating the genetics of quit success, and how those features may be modeled in mice. PMID:22304675

  19. Spatial patterns of breeding success of grizzly bears derived from hierarchical multistate models.

    Science.gov (United States)

    Fisher, Jason T; Wheatley, Matthew; Mackenzie, Darryl

    2014-10-01

    Conservation programs often manage populations indirectly through the landscapes in which they live. Empirically, linking reproductive success with landscape structure and anthropogenic change is a first step in understanding and managing the spatial mechanisms that affect reproduction, but this link is not sufficiently informed by data. Hierarchical multistate occupancy models can forge these links by estimating spatial patterns of reproductive success across landscapes. To illustrate, we surveyed the occurrence of grizzly bears (Ursus arctos) in the Canadian Rocky Mountains Alberta, Canada. We deployed camera traps for 6 weeks at 54 surveys sites in different types of land cover. We used hierarchical multistate occupancy models to estimate probability of detection, grizzly bear occupancy, and probability of reproductive success at each site. Grizzly bear occupancy varied among cover types and was greater in herbaceous alpine ecotones than in low-elevation wetlands or mid-elevation conifer forests. The conditional probability of reproductive success given grizzly bear occupancy was 30% (SE = 0.14). Grizzly bears with cubs had a higher probability of detection than grizzly bears without cubs, but sites were correctly classified as being occupied by breeding females 49% of the time based on raw data and thus would have been underestimated by half. Repeated surveys and multistate modeling reduced the probability of misclassifying sites occupied by breeders as unoccupied to grizzly bear occupancy varied across the landscape. Those patches with highest probabilities of breeding occupancy-herbaceous alpine ecotones-were small and highly dispersed and are projected to shrink as treelines advance due to climate warming. Understanding spatial correlates in breeding distribution is a key requirement for species conservation in the face of climate change and can help identify priorities for landscape management and protection.

  20. Loving-kindness in the treatment of traumatized refugees and minority groups: a typology of mindfulness and the nodal network model of affect and affect regulation.

    Science.gov (United States)

    Hinton, Devon E; Ojserkis, Rebecca A; Jalal, Baland; Peou, Sonith; Hofmann, Stefan G

    2013-08-01

    This article discusses how loving-kindness can be used to treat traumatized refugees and minority groups, focusing on examples from our treatment, culturally adapted cognitive-behavioral therapy (CA-CBT). To show how we integrate loving-kindness with other mindfulness interventions and why loving-kindness should be an effective therapeutic technique, we present a typology of mindfulness states and the Nodal Network Model (NNM) of Affect and Affect Regulation. We argue that mindfulness techniques such as loving-kindness are therapeutic for refugees and minority populations because of their potential for increasing emotional flexibility, decreasing rumination, serving as emotional regulation techniques, and forming part of a new adaptive processing mode centered on psychological flexibility. We present a case to illustrate the clinical use of loving-kindness within the context of CA-CBT. © 2013 Wiley Periodicals, Inc.

  1. A plan to facilitate the early career development of minority scholars in the health sciences.

    Science.gov (United States)

    Berget, Rachael J; Reynolds, Charles F; Ricci, Edmund M; Quinn, Sandra C; Mawson, Anthony R; Payton, Marinelle; Thomas, Stephen B

    2010-11-01

    The EXPORT Health Project at the Center for Minority Health, University of Pittsburgh, partnered with the Center of Excellence in Minority Health at Jackson State University to design and present a Summer Research Career Development Institute (SRCDI) in 2005 and 2006. The goal of the SRCDI was to enhance the early academic career survival skills of postdoctoral and junior faculty investigators doing research on minority health disparities. Institute organizers seek to increase the number of minority investigators who are successful in securing faculty appointments and independent funding through federal agencies. The Pittsburgh Jackson State University SRCDI admitted a total of 55 (26 in 2005 and 29 in 2006) outstanding postdoctoral fellows and assistant professors from institutions across the United States. Elements of this model can be exported to other institutions to assist minority faculty in achieving their career goals.

  2. Finding Respondents from Minority Groups

    Directory of Open Access Journals (Sweden)

    Jose A. Ramirez

    2006-01-01

    Full Text Available The recruitment of respondents belonging to ethnic minorities poses important challenges in social and health research. This paper reflects on the enablers and barriers to recruitment that we encountered in our research work with persons belonging to ethnic minorities. Additionally, we applied the Matching Model of Recruitment, a theoretical framework concerning minority recruitment, to guide our reflection. We also explored its applicability as a research design tool. In assessing our research experience, we learned that minority recruitment in social and health research is influenced by the social context of all key players involved in the research. Also, there are enablers and barriers within that social context facilitating or delaying the recruitment process. The main enablers to recruit respondents belonging to ethnic minorities include working with community agencies and gatekeepers who share a common vision with researchers and the latter's ability to gain the trust of potential respondents. The main barriers include demanding too much from these same community agencies and gatekeepers and ignoring factors that could delay the completion of the research. Although we found the Matching Model of Recruitment to be an effective tool in assessing the processes of recruiting respondents belonging to ethnic minorities, further empirical research is needed to explore its usefulness during the research planning phase.

  3. Successful N{sub 2} leptogenesis with flavour coupling effects in realistic unified models

    Energy Technology Data Exchange (ETDEWEB)

    Bari, Pasquale Di; King, Stephen F. [Department of Physics and Astronomy, University of Southampton,Highfield, Southampton SO17 1BJ (United Kingdom)

    2015-10-02

    In realistic unified models involving so-called SO(10)-inspired patterns of Dirac and heavy right-handed (RH) neutrino masses, the lightest right-handed neutrino N{sub 1} is too light to yield successful thermal leptogenesis, barring highly fine tuned solutions, while the second heaviest right-handed neutrino N{sub 2} is typically in the correct mass range. We show that flavour coupling effects in the Boltzmann equations may be crucial to the success of such N{sub 2} dominated leptogenesis, by helping to ensure that the flavour asymmetries produced at the N{sub 2} scale survive N{sub 1} washout. To illustrate these effects we focus on N{sub 2} dominated leptogenesis in an existing model, the A to Z of flavour with Pati-Salam, where the neutrino Dirac mass matrix may be equal to an up-type quark mass matrix and has a particular constrained structure. The numerical results, supported by analytical insight, show that in order to achieve successful N{sub 2} leptogenesis, consistent with neutrino phenomenology, requires a “flavour swap scenario” together with a less hierarchical pattern of RH neutrino masses than naively expected, at the expense of some mild fine-tuning. In the considered A to Z model neutrino masses are predicted to be normal ordered, with an atmospheric neutrino mixing angle well into the second octant and the Dirac phase δ≃20{sup ∘}, a set of predictions that will be tested in the next years in neutrino oscillation experiments. Flavour coupling effects may be relevant for other SO(10)-inspired unified models where N{sub 2} leptogenesis is necessary.

  4. Novel Causality in Consumer’s Online Behavior: Ecommerce Success Model

    Directory of Open Access Journals (Sweden)

    Amna Khatoon

    2016-12-01

    Full Text Available Online shopping (e-Shopping has grown at a rapid pace with the advancement in modern web technologies, there are then socio and technical aspects (factors in the mentioned e-shopping. The following research paper highlights some mandatory socio-technical factors affecting consumer’s behavior in online shopping environment. In this work a comprehensive conceptual model is put forward based on proposed reform DeLone and McLean Success Model for Information Systems. This model is used for the assessment of the success of eCommerce web portals. Approximately thirteen different hypotheses are proposed on the bases of this methodology which represent the cause and effect relationship among the various variables affecting consumer’s online buying behavior. Further this work is simulated in iThink technology to show prominently that consumer’s satisfaction and trust directly affects productivity of the organization. For development organizations the proposed methodology is valuable because it will facilitate in building the eCommerce websites, web portals whereas retailers can improve the productivity of their organization by accomplishing this.

  5. A decision support model to determine the critical success factors of asset management services

    Directory of Open Access Journals (Sweden)

    Jooste, Johannes Lodewyk

    2015-05-01

    Full Text Available Business-to-business services relating to physical asset management play an increasingly important role in industry. This is in the context of the current pressures that organisations experience in realising optimal value from their assets. Complying with asset management standards such as ISO 55000 contributes towards the importance of these services. This paper summarises the findings from a study identifying the critical success factors for asset management services, and presents a decision support model that provides the asset management community with access to these factors for decision-making and for improving asset management services.

  6. A domestic model for successful implementation of enterprise resource planning (ERP systems in Iranian manufacturing enterprises

    Directory of Open Access Journals (Sweden)

    Mohammad Rahmani

    2012-01-01

    Full Text Available This research investigates the human-behavioral dimension of technology acceptance in enterprises. It is evident that accepting a technology depends on the underlying circumstances of the environment. We have approached this issue from two different angles of social and technological architecture. The research tries to explore proper enterprise architecture for ERP system acceptance. Social Architecture (SA is defined as the set of circumstances that makes people behave in a particular way. So behavior of persons (employees of an enterprise can be a function of SA. Hence acceptance of a system can be dictated by SA and manipulating SA can result in desirable success for a technology system. We have achieved various variables of social architecture and have examined their relevance to system acceptance and success in related enterprises (research domain beside technological architecture variables. The results have indicated that a special form of social and technological architecture can lead to success for ERP system in the enterprises of the research domain. This gave us a model of architecture.

  7. Modelling the interactions among factors that influence successful computerisation of small business

    Directory of Open Access Journals (Sweden)

    Gerard Fogarty

    2008-05-01

    Full Text Available Small businesses face many problems if they are to survive the first five years of operation. The increasing complexity of information needed to run a business in the 21st Century has added another obstacle to what is already a tough course. Sooner or later, survivors are faced with the prospect of investing in computer based information systems (CBIS. Properly handled, the investment will improve the competitiveness of the company. Badly handled, the investment will handicap the company and perhaps even lead to its closure. Using survey methodology, the present study collected information from 171 small businesses that had purchased computer systems with a view to finding out what factors contribute to successful implementation of CBIS. The variables studied included background characteristics of the organization, background characteristics of the Chief Executive Officer, decision making processes, and a range of variables relating to the performance of the system itself. The outcome variable was user satisfaction. We developed and tested a CBIS implementation success model based on these variables. Results showed that although the performance of the system was the immediate determinant of satisfaction, the background variables had both direct and indirect (mediated effects on satisfaction. These findings emphasise the importance of going beyond the immediate surrounds of a computing environment if one wishes to explain the factors that influence CBIS success in small businesses.

  8. Collaborative Testing as a Model for Addressing Equity in Student Success in STEM Classes

    Science.gov (United States)

    Dileonardo, C.; James, B. R.

    2016-12-01

    Introductory Earth science classes at two-year colleges play a critical role as "gateway courses" for underrepresented student populations into undergraduate STEM programs. Students entering college underprepared in math and science typically receive their only exposure to science at the undergraduate level in introductory courses in the Earth and space sciences. In many colleges a huge disparity exists in these classes between success rates amongst students from groups traditionally represented in the STEM fields and those from underrepresented populations. Closing the equity gap in success in these courses is a major focus of many pilot projects nationally. This concern has also led to the adoption of new teaching and learning practices, based on research in learning, in introductory Earth science pedagogy. Models of teaching practices including greater engagement, active learning approaches, and collaborative learning structures seem to help with student achievement in introductory courses. But, whereas these practices might increase overall student success they have not proven to close the equity gap in achievement. De Anza a two-year college in the San Francisco bay area has a long history in the geology department of incorporating and testing teaching practices developed out of research in learning. Collaborative learning has infused every aspect of our learning approaches in the Earth sciences, including laboratory, fieldwork, and test preparation. Though these approaches seemed to have educational benefit the huge equity gap department-wide persisted between targeted and non-targeted populations. Three years ago collaborative testing models were introduced into our geology and meteorology classes. The mechanism included methods for directly comparing collaborative to individual testing. The net result was that targeted populations including African Americans, Latinos, and Filipinos increased steadily at around 3.5% per year from 66% to 73%. The overall

  9. Empirical Succession Mapping and Data Assimilation to Constrain Demographic Processes in an Ecosystem Model

    Science.gov (United States)

    Kelly, R.; Andrews, T.; Dietze, M.

    2015-12-01

    Shifts in ecological communities in response to environmental change have implications for biodiversity, ecosystem function, and feedbacks to global climate change. Community composition is fundamentally the product of demography, but demographic processes are simplified or missing altogether in many ecosystem, Earth system, and species distribution models. This limitation arises in part because demographic data are noisy and difficult to synthesize. As a consequence, demographic processes are challenging to formulate in models in the first place, and to verify and constrain with data thereafter. Here, we used a novel analysis of the USFS Forest Inventory Analysis to improve the representation of demography in an ecosystem model. First, we created an Empirical Succession Mapping (ESM) based on ~1 million individual tree observations from the eastern U.S. to identify broad demographic patterns related to forest succession and disturbance. We used results from this analysis to guide reformulation of the Ecosystem Demography model (ED), an existing forest simulator with explicit tree demography. Results from the ESM reveal a coherent, cyclic pattern of change in temperate forest tree size and density over the eastern U.S. The ESM captures key ecological processes including succession, self-thinning, and gap-filling, and quantifies the typical trajectory of these processes as a function of tree size and stand density. Recruitment is most rapid in early-successional stands with low density and mean diameter, but slows as stand density increases; mean diameter increases until thinning promotes recruitment of small-diameter trees. Strikingly, the upper bound of size-density space that emerges in the ESM conforms closely to the self-thinning power law often observed in ecology. The ED model obeys this same overall size-density boundary, but overestimates plot-level growth, mortality, and fecundity rates, leading to unrealistic emergent demographic patterns. In particular

  10. Office of Minority Health

    Science.gov (United States)

    Skip Navigation Office of Minority Health A A A En Español Newsroom Contact Us Search: About OMH What We Do Resource ... History Leadership Regional Staff State Minority Health Contacts Offices of Minority Health at HHS Advisory Committee Committees ...

  11. Alcohol and Minority Youth.

    Science.gov (United States)

    Wright, Roosevelt, Jr.; Watts, Thomas D.

    1991-01-01

    Maintains that minority youth who use (or abuse) alcohol in American society deal with using alcohol, being minority, and being young, three dimensions viewed by society with mixed, sometimes hostile and/or fearful reactions. Suggests that examining alcoholism among minority youth involves coming to grips with poverty, education, income, and life…

  12. Rethinking motor learning and savings in adaptation paradigms: model-free memory for successful actions combines with internal models.

    Science.gov (United States)

    Huang, Vincent S; Haith, Adrian; Mazzoni, Pietro; Krakauer, John W

    2011-05-26

    Although motor learning is likely to involve multiple processes, phenomena observed in error-based motor learning paradigms tend to be conceptualized in terms of only a single process: adaptation, which occurs through updating an internal model. Here we argue that fundamental phenomena like movement direction biases, savings (faster relearning), and interference do not relate to adaptation but instead are attributable to two additional learning processes that can be characterized as model-free: use-dependent plasticity and operant reinforcement. Although usually "hidden" behind adaptation, we demonstrate, with modified visuomotor rotation paradigms, that these distinct model-based and model-free processes combine to learn an error-based motor task. (1) Adaptation of an internal model channels movements toward successful error reduction in visual space. (2) Repetition of the newly adapted movement induces directional biases toward the repeated movement. (3) Operant reinforcement through association of the adapted movement with successful error reduction is responsible for savings. Copyright © 2011 Elsevier Inc. All rights reserved.

  13. Designing for sustained adoption: A model of developing educational innovations for successful propagation

    Science.gov (United States)

    Khatri, Raina; Henderson, Charles; Cole, Renée; Froyd, Jeffrey E.; Friedrichsen, Debra; Stanford, Courtney

    2016-06-01

    [This paper is part of the Focused Collection on Preparing and Supporting University Physics Educators.] The physics education research community has produced a wealth of knowledge about effective teaching and learning of college level physics. Based on this knowledge, many research-proven instructional strategies and teaching materials have been developed and are currently available to instructors. Unfortunately, these intensive research and development activities have failed to influence the teaching practices of many physics instructors. This paper describes interim results of a larger study to develop a model of designing materials for successful propagation. The larger study includes three phases, the first two of which are reported here. The goal of the first phase was to characterize typical propagation practices of education developers, using data from a survey of 1284 National Science Foundation (NSF) principal investigators and focus group data from eight disciplinary groups of NSF program directors. The goal of the second phase was to develop an understanding of successful practice by studying three instructional strategies that have been well propagated. The result of the first two phases is a tentative model of designing for successful propagation, which will be further validated in the third phase through purposeful sampling of additional well-propagated instructional strategies along with typical education development projects. We found that interaction with potential adopters was one of the key missing ingredients in typical education development activities. Education developers often develop a polished product before getting feedback, rely on mass-market communication channels for dissemination, and do not plan for supporting adopters during implementation. The tentative model resulting from this study identifies three key propagation activities: interactive development, interactive dissemination, and support of adopters. Interactive development

  14. Performance analysis of successive over relaxation method for solving glioma growth model

    Science.gov (United States)

    Hussain, Abida; Faye, Ibrahima; Muthuvalu, Mohana Sundaram

    2016-11-01

    Brain tumor is one of the prevalent cancers in the world that lead to death. In light of the present information of the properties of gliomas, mathematical models have been developed by scientists to quantify the proliferation and invasion dynamics of glioma. In this study, one-dimensional glioma growth model is considered, and finite difference method is used to discretize the problem. Then, two stationary methods, namely Gauss-Seidel (GS) and Successive Over Relaxation (SOR) are used to solve the governing algebraic system. The performance of the methods are evaluated in terms of number of iteration and computational time. On the basis of performance analysis, SOR method is shown to be more superior compared to GS method.

  15. Models of Success for the Romanian Economic Organizations: New Characteristics of the National Competitive Advantage Mix

    Directory of Open Access Journals (Sweden)

    Adrian-Gelu LUPU

    2013-06-01

    Full Text Available In the current period of uncertainty and economic stagnation, the national economies are trying to redefine and identify again the sources of the competitive advantage. The neo-Keynesian models are once more facing the liberal models, the austerity strategies are facing the investment strategies, the partisans of each of these opinions appreciating the opportunity of their own proposal. The results of the study come to align many of the specialists’ efforts, to contribute to identifying the optimum way of combining the resources, the mix of measures that can provide the lasting competitive advantage of the national economy, and, finally, to identify the component elements of the “Romanian diamond” of generating success and increasing external attractiveness.

  16. Comparison of univariate and multivariate models for prediction of major and minor elements from laser-induced breakdown spectra with and without masking

    Science.gov (United States)

    Dyar, M. Darby; Fassett, Caleb I.; Giguere, Stephen; Lepore, Kate; Byrne, Sarah; Boucher, Thomas; Carey, CJ; Mahadevan, Sridhar

    2016-09-01

    This study uses 1356 spectra from 452 geologically-diverse samples, the largest suite of LIBS rock spectra ever assembled, to compare the accuracy of elemental predictions in models that use only spectral regions thought to contain peaks arising from the element of interest versus those that use information in the entire spectrum. Results show that for the elements Si, Al, Ti, Fe, Mg, Ca, Na, K, Ni, Mn, Cr, Co, and Zn, univariate predictions based on single emission lines are by far the least accurate, no matter how carefully the region of channels/wavelengths is chosen and despite the prominence of the selected emission lines. An automated iterative algorithm was developed to sweep through all 5485 channels of data and select the single region that produces the optimal prediction accuracy for each element using univariate analysis. For the eight major elements, use of this technique results in a 35% improvement in prediction accuracy; for minors, the improvement is 13%. The best wavelength region choice for any given univariate analysis is likely to be an inherent property of the specific training set that cannot be generalized. In comparison, multivariate analysis using partial least-squares (PLS) almost universally outperforms univariate analysis. PLS using all the same wavelength regions from the univariate analysis produces results that improve in accuracy by 63% for major elements and 3% for minor element. This difference is likely a reflection of signal to noise ratios, which are far better for major elements than for minor elements, and likely limit their prediction accuracy by any technique. We also compare predictions using specific wavelength ranges for each element against those employing all channels. Masking out channels to focus on emission lines from a specific element that occurs decreases prediction accuracy for major elements but is useful for minor elements with low signals and proportionally much higher noise; use of PLS rather than univariate

  17. Validation of a Prediction Model for Vaginal Birth after Cesarean Delivery Reveals Unexpected Success in a Diverse American Population

    Science.gov (United States)

    Maykin, Melanie Mai; Mularz, Amanda J.; Lee, Lydia K.; Valderramos, Stephanie Gaw

    2017-01-01

    Objective To investigate the validity of a prediction model for success of vaginal birth after cesarean delivery (VBAC) in an ethnically diverse population. Methods We performed a retrospective cohort study of women admitted at a single academic institution for a trial of labor after cesarean from May 2007 to January 2015. Individual predicted success rates were calculated using the Maternal–Fetal Medicine Units Network prediction model. Participants were stratified into three probability-of-success groups: low (65%). The actual versus predicted success rates were compared. Results In total, 568 women met inclusion criteria. Successful VBAC occurred in 402 (71%), compared with a predicted success rate of 66% (p = 0.016). Actual VBAC success rates were higher than predicted by the model in the low (57 vs. 29%; p < 0.001) and moderate (61 vs. 52%; p = 0.003) groups. In the high probability group, the observed and predicted VBAC rates were the same (79%). Conclusion When the predicted success rate was above 65%, the model was highly accurate. In contrast, for women with predicted success rates <35%, actual VBAC rates were nearly twofold higher in our population, suggesting that they should not be discouraged by a low prediction score.

  18. Validation of a Prediction Model for Vaginal Birth after Cesarean Delivery Reveals Unexpected Success in a Diverse American Population.

    Science.gov (United States)

    Maykin, Melanie Mai; Mularz, Amanda J; Lee, Lydia K; Valderramos, Stephanie Gaw

    2017-01-01

    Objective To investigate the validity of a prediction model for success of vaginal birth after cesarean delivery (VBAC) in an ethnically diverse population. Methods We performed a retrospective cohort study of women admitted at a single academic institution for a trial of labor after cesarean from May 2007 to January 2015. Individual predicted success rates were calculated using the Maternal-Fetal Medicine Units Network prediction model. Participants were stratified into three probability-of-success groups: low (65%). The actual versus predicted success rates were compared. Results In total, 568 women met inclusion criteria. Successful VBAC occurred in 402 (71%), compared with a predicted success rate of 66% (p = 0.016). Actual VBAC success rates were higher than predicted by the model in the low (57 vs. 29%; p success rate was above 65%, the model was highly accurate. In contrast, for women with predicted success rates <35%, actual VBAC rates were nearly twofold higher in our population, suggesting that they should not be discouraged by a low prediction score.

  19. Triple Diagonal modeling: A mechanism to focus productivity improvement for business success

    Energy Technology Data Exchange (ETDEWEB)

    Levine, L.O. [Pacific Northwest Lab., Richland, WA (United States); Villareal, L.D. [Army Depot, Corpus Christi, TX (United States)

    1993-09-01

    Triple Diagonal (M) modeling is a technique to help quickly diagnose an organization`s existing production system and to identify significant improvement opportunities in executing, controlling, and planning operations. TD modeling is derived from ICAM Definition Language (IDEF 0)-also known as Structured Analysis and Design Technique. It has been used successfully at several Department of Defense remanufacturing facilities trying to accomplish significant production system modernization. TD has several advantages over other modeling techniques. First, it quickly does ``As-ls`` analysis and then moves on to identify improvements. Second, creating one large diagram makes it easier to share the TD model throughout an organization, rather than the many linked 8 1/2 {times} 11`` drawings used in traditional decomposition approaches. Third, it acts as a communication mechanism to share understanding about improvement opportunities that may cross existing functional/organizational boundaries. Finally, TD acts as a vehicle to build a consensus on a prioritized list of improvement efforts that ``hangs togethers as an agenda for systemic changes in the production system and the improved integration of support functions.

  20. Hierarchical Bayesian Markov switching models with application to predicting spawning success of shovelnose sturgeon

    Science.gov (United States)

    Holan, S.H.; Davis, G.M.; Wildhaber, M.L.; DeLonay, A.J.; Papoulias, D.M.

    2009-01-01

    The timing of spawning in fish is tightly linked to environmental factors; however, these factors are not very well understood for many species. Specifically, little information is available to guide recruitment efforts for endangered species such as the sturgeon. Therefore, we propose a Bayesian hierarchical model for predicting the success of spawning of the shovelnose sturgeon which uses both biological and behavioural (longitudinal) data. In particular, we use data that were produced from a tracking study that was conducted in the Lower Missouri River. The data that were produced from this study consist of biological variables associated with readiness to spawn along with longitudinal behavioural data collected by using telemetry and archival data storage tags. These high frequency data are complex both biologically and in the underlying behavioural process. To accommodate such complexity we developed a hierarchical linear regression model that uses an eigenvalue predictor, derived from the transition probability matrix of a two-state Markov switching model with generalized auto-regressive conditional heteroscedastic dynamics. Finally, to minimize the computational burden that is associated with estimation of this model, a parallel computing approach is proposed. ?? Journal compilation 2009 Royal Statistical Society.

  1. Challenges of Discourses on "Model Minority" and "South Korean Wind" for Ethnic Koreans' Schooling in Northeast China

    Science.gov (United States)

    Fang, Gao

    2009-01-01

    The educational success of ethnic Koreans in China has been achieved through Mandarin-Korean bilingual education, with the Korean language as the medium of instruction. Using the data collected as part of an ethnographic research on Korean elementary school students in a national Korean school in China, this article examines the relation between…

  2. Diabetes reversal via gene transfer: building on successes in animal models

    Directory of Open Access Journals (Sweden)

    Gerace D

    2015-01-01

    Full Text Available Dario Gerace,1,* Rosetta Martiniello-Wilks,1,2,* Ann M Simpson1 1School of Medical and Molecular Biosciences, Centre for Health Technologies, 2Translational Cancer Research Group, University of Technology Sydney, Sydney, NSW, Australia  *These authors contributed equally to this work Abstract: Type 1 diabetes (T1D is caused by the autoimmune destruction of the insulin-producing pancreatic β-cells. People with T1D manage their hyperglycemia using daily insulin injections; however, this does not prevent the development of long-term diabetic complications such as retinopathy, nephropathy, neuropathy, and various macrovascular disorders. Currently, the only "cure" for T1D is pancreas transplantation or islet-cell transplantation; however, this is hampered by the limited number of donors and the requirement for life-long immunosuppression. As a result, the need for alternative therapies is vital. One of the strategies employed to correct T1D is the use of gene transfer to generate the production of an “artificial” β-cell that is capable of secreting insulin in response to fluctuating glucose concentrations that normally occurs in people without T1D. The treatment of many diseases using cell and gene therapy is generating significant attention in the T1D research community; however, for a cell therapy to enter clinical trials, success and safety must first be shown in an appropriate animal model. Animal models have been used in diabetes research for over a century, have improved our understanding of the pathophysiology of diabetes, and have led to the discovery of useful drugs for the treatment of the disease. Currently, the nonobese diabetic mouse is the animal model of choice for the study of T1D as it most closely reflects disease development in humans. The aim of this review is to evaluate the success of cell and gene therapy to reverse T1D in animal models for future clinical application. Keywords: β-cell transcription factors, animal

  3. Modeling community succession and assembly: A novel method for network evolution

    Directory of Open Access Journals (Sweden)

    WenJun Zhang

    2012-06-01

    Full Text Available The process of modeling community succession and assembly is in some sense a method for network evolution, as done by Barabasi and Albert (1999. It is also one of the methods to create a sample networkfrom the statistic network I proposed earlier. I think that the mechanism of network evolution supposed by Barabasi and Albert is most likely applicable to the natural phenomena with emergency property. For natural phenomena without emergency property, the present study indicated that a scale-free network may be produced through a new mechanism, i.e., whether the connection of a taxon x occurs, dependent on the type and property of taxon y (in particular, the degree of its direct correlation with x to be connected but not necessarily the existing number of connections of taxon y, as proposed in present study.

  4. Putting patients first: a novel patient-centered model for medical enterprise success.

    Science.gov (United States)

    Dhawan, Naveen

    2014-01-01

    This article introduces a new way of viewing patient-customers. It encourages a greater emphasis on patients' needs and the importance of considering dimensions of the patient experience to better serve them. It also draws from examples in the general business world as they can be applied to medical enterprises. The author introduces a model that directs all business activities toward the end consumer with an underlying guidance by patient needs. A business is advised to understand its customer, design a patient-directed vision, and focus on creating a unique customer experience. The article delineates key action items for physicians and administrators that will allow them to better meet their patient-customers' needs and develop loyalty. By practicing a patient-centered approach and following these guidelines, one may ensure greater success of the medical enterprise.

  5. Italian industrial districts: A model of success or a weak productive system?

    Directory of Open Access Journals (Sweden)

    Daniele Schilirò

    2012-10-01

    Full Text Available The present contribution focuses on two issues. The first one concerns the characteristics of industrial districts and the increasing weight of these districts in the Italian system of production. The second issue is about the competitiveness of the Italian industrial districts, if they represent a model of success or rather a weak system of production. Thus, the transformation of the industrial districts is examined and the strengths and weaknesses are highlighted. One argument that comes out of this investigation is that industrial districts are strongly influenced by institutions, territory, and also by the social and cultural environment. The second argument regards the competitiveness of this Italian industrial development model, based on SMEs, which is founded on the specialization of productions, on innovation and internationalization. The paper argues that this model, which represents the ``Made in Italy'', is still a strong and dynamic system which has shown good performances and it represents a paradigm of lasting competitiveness, even if it is restrained by many external chronic constraints.

  6. Using a micro-level model to generate a macro-level model of productive successful aging.

    Science.gov (United States)

    Johnson, Jessica K M; Sarkisian, Natalia; Williamson, John B

    2015-02-01

    Aging successfully entails good physical and cognitive health, as well as ongoing participation in social and productive activity. This study hones in on participation in productive activity, a factor that makes an important contribution to successful aging. One conceptual model of productive activity in later life specifies the antecedents and consequences of productivity. This study draws on that micro-level model to develop a corresponding macro-level model and assesses its utility for examining the predictors of and explaining the relationships between one form of productivity (labor force participation rates) and one aspect of well-being (average life expectancy) among males and females. Random effects regression models and path analysis were used to analyze cross-national longitudinal data for 24 high-income Organization for Economic Co-operation and Development (OECD) countries at seven time points (1980-2010; 168 observations total). OECD countries with higher labor force participation rates among older workers have higher life expectancies. Labor force participation mediates the effects of gross domestic product per capita on male and female life expectancy, and it mediates the effect of self-employment rate for men, but it acts as a suppressor with regard to the effect of public spending on male and female life expectancy. A well-known micro-level model of productive activity can be fruitfully adapted to account for macro-level cross-national variation in productivity and well-being. © The Author 2014. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  7. Jogo da Minoria: um modelo baseado em agentes aplicado ao mercado financeiro Minority Game: an agent-based model applied to financial market

    Directory of Open Access Journals (Sweden)

    Antonio Fernando Crepaldi

    2012-12-01

    Full Text Available Nos últimos anos houve uma contribuição significativa dos físicos para a construção de um tipo de modelo baseado em agentes que busca reproduzir, em simulação computacional, o comportamento do mercado financeiro. Esse modelo, chamado Jogo da Minoria consiste de um grupo de agentes que vão ao mercado comprar ou vender ativos. Eles tomam decisões com base em estratégias e, por meio delas, os agentes estabelecem um intrincado jogo de competição e coordenação pela distribuição da riqueza. O modelo tem demonstrado resultados bastante ricos e surpreendentes, tanto na dinâmica do sistema como na capacidade de reproduzir características estatísticas e comportamentais do mercado financeiro. Neste artigo, são apresentadas a estrutura e a dinâmica do Jogo da Minoria, bem como as contribuições recentes relacionadas ao Jogo da Minoria denominado de Grande Canônico, que é um modelo mais bem ajustado às características do mercado financeiro e reproduz as regularidades estatísticas do preço dos ativos chamadas fatos estilizados.Over the past ten years physicists have made a significant contribution to the building of an agent-based model to reproduce the behavior of financial markets using computer simulation. This model, called the Minority Game, consists of a group of agents that buy or sell assets. They make decisions based on strategies, and through them the agents establish an intricate game of competition and coordination resulting in the distribution of wealth. The model has shown outstanding surprising results concerning both the dynamics of the system and the ability to reproduce statistical and behavior characteristics of the financial market. In this study, the structure and dynamics of the Minority Game and the recent contributions related to the Grand Canonical Minority game, a model which is better adapted to the characteristics of the financial market and reproduce the statistical regularities of asset prices (called

  8. A review of successful aging models: Proposing proactive coping as an important additional strategy

    NARCIS (Netherlands)

    Ouwehand, C.; Ridder, D.T.D. de; Bensing, J.

    2007-01-01

    Successful aging is an important concept, and one that has been the subject of much research. During the last 15 years, the emphasis of this research has shifted from formulating criteria for successful aging to describing the processes involved in successful aging. The main purpose of the present a

  9. A review of successful aging models: proposing proactive coping as an important additional strategy.

    NARCIS (Netherlands)

    Ouwehand, C.; Ridder, D.T.D. de; Bensing, J.M.

    2007-01-01

    Successful aging is an important concept, and one that has been the subject of much research. During the last 15 years, the emphasis of this research has shifted from formulating criteria for successful aging to describing the processes involved in successful aging. The main purpose of the present a

  10. Advancing Minorities and Women to the PhD in Physics and Astronomy

    Science.gov (United States)

    Stassun, Keivan

    2017-01-01

    We briefly review the current status of underrepresented minorities in physics and astronomy: The underrepresentation of Black-, Hispanic-, and Native-Americans is an order of magnitude problem. We then describe the Fisk-Vanderbilt Masters-to-PhD Bridge program as a successful model for addressing this problem. Since 2004 the program has admitted 110 students, 90% of them underrepresented minorities (50% female), with a retention rate of 90%. The program has become the top producer of African American master's degrees in physics, and is now one of the top producers of minority PhDs in astronomy, materials science, and physics. We summarize the main features of the program including its core strategies: (1) replacing the GRE in admissions with indicators that are better predictive of long-term success, (2) partnering with a minority-serving institution for student training through collaborative research, and (3) using the master's degree as a deliberate stepping stone to the PhD. We show how misuse of the GRE in graduate admissions may by itself in large part explain the ongoing underrepresentation of minorities in PhD programs, and we describe our alternate methods to identify talented individuals most likely to succeed. We describe our mentoring model and toolkit which may be utilized to enhance the success of all PhD students.

  11. A mental model for successful inter-disciplinary collaboration in curriculum innovation for information literacy

    Directory of Open Access Journals (Sweden)

    M. Detken Scheepers

    2011-01-01

    Full Text Available The University of Pretoria introduced a compulsory Information Literacy module to address the need for delivering motivated knowledgeable employees that embrace information and have the skills to find, select and use relevant information accurately, efficiently and effectively in an explosive information age. Low class attendance, an indication of unmotivated students, as well as the limited scholarly application of information literacy skills in consecutive academic years of study have been identified as possible barriers to the application of the desired skills. A collaborative action research project based on Whole Brain principles was introduced to motivate learners through innovative learning material in the module. A deeper understanding of the role of thinking preferences and thinking avoidances is essential in selecting a team that is responsible for the planning, design, development and delivery of learning opportunities and material. This article discusses the Whole Brain Model® as a mental model that underpins the successful collaboration of multidisciplinary teams and enhances innovative curriculum design that addresses alternative approaches to the teaching of Information Literacy.

  12. Identifying critical success factors (CSFs) of implementing building information modeling (BIM) in Malaysian construction industry

    Science.gov (United States)

    Yaakob, Mazri; Ali, Wan Nur Athirah Wan; Radzuan, Kamaruddin

    2016-08-01

    Building Information Modeling (BIM) is defined as existing from the earliest concept to demolition and it involves creating and using an intelligent 3D model to inform and communicate project decisions. This research aims to identify the critical success factors (CSFs) of BIM implementation in Malaysian construction industry. A literature review was done to explore previous BIM studies on definitions and history of BIM, construction issues, application of BIM in construction projects as well as benefits of BIM. A series of interviews with multidisciplinary Malaysian construction experts will be conducted purposely for data collection process guided by the research design and methodology approach of this study. The analysis of qualitative data from the process will be combined with criteria identified in the literature review in order to identify the CSFs. Finally, the CSFs of BIM implementation will be validated by further Malaysian industrialists during a workshop. The validated CSFs can be used as a term of reference for both Malaysian practitioners and academics towards measuring BIM effectiveness level in their organizations.

  13. Analysis of behavioral intention on ABC system adoption: Model of information systems technology and success acceptance

    Directory of Open Access Journals (Sweden)

    Baiq Nensi Veni Indipenrian

    2015-12-01

    Full Text Available This study aims to examine the effect of individual behavioral change on the adoption of activity- based costing (ABC system and its usage, using Unified Theory of Accep-tance and Use of Technology (UTAUT and Information System Success Model. The sample involves 78 respondents who have positions as financial manager, controller manager, accounting manager, and production manager in mid-sized manufacturing companies in East java. The data were collected by survey method. This study used a Partial Least Square (PLS as the data analysis method. It was found that not all of the main UTAUT models were supported, because performance expectancy and effort expectancy have no effect on behavioral intention and use behavior to adopt ABC system. Whereas, social factors, information quality and facilitating conditions had a positive effect on behavioral intention and use behavior to adopt ABC system. The different results of this study with several previous studies are probably caused by the differences in the context of system, culture and characteristics of the sample. The implication of this study is not only to propose a theoretical framework for researches in future, but also useful for companies to optimize the use of ABC system that should be supported by top level and mid-level management and the readiness of the individu-als to accept the adoption of the ABC system.

  14. Modelling and monitoring vegetation and evapotranspiration on an anthropogenic grassland succession in the Andes of Ecuador

    Science.gov (United States)

    Silva, B.; Bendix, J.

    2012-04-01

    In the eastern Andes of southern Ecuador the infestation of pasture (mostly C4-grass Setaria sphacelata) by the aggressive bracken fern (Pteridium sp.) still is an unsolved problem. Environmental and exogenous factors and direct plant competition have been hypothesized to drive bracken occurrence. Special attention is given to pasture burning, which stimulates bracken growth, and is common in the relative dry season (Oct-Dec). However, no knowledge is available for a quantitative hypothesis investigation on bracken occurrence under current and future local climate. In this work a modeling approach is presented, in which initial investigations support the application of a two-big-leaf model, and parameterization and model forcing are made with extensive data on physiological traits and on the physical environment. Our main aims here are (i) to show field investigations on a plant scale, which are the basis for a proper model parameterization; and (ii) to provide initialization data, which is based on estimation of green leaf area index from very-high and high resolution optical remote sensing (air-photos and Quickbird images); (iii) to simulate vegetation succession after burn on an experimental site, using in situ climate data and future climate-change scenarios. The modeling approach is based in the main on the vegetation dynamic model called Southern Bracken Competition Model (SoBraCoMo), which has been coupled to a hydrological model written on the catchment model framework (CMF), to simulate soil-vegetation dynamics. Main initialization variables are biochemical parameters (quantum and carboxylation efficiency) and the green leaf area index (green-LAI). Forcing data include soil, leaf and air temperature, soil and air humidity and radiation. The model has been developed and tested on the experimental site (2100 m asl) in the Rio San Francisco Valley, Ecuador. Simulation results on the burn experiment of 2009 showed that stimulation by fire could not boost fern

  15. MINORITY STRESS, POSITIVE IDENTITY DEVELOPMENT, AND DEPRESSIVE SYMPTOMS: IMPLICATIONS FOR RESILIENCE AMONG SEXUAL MINORITY MALE YOUTH

    Science.gov (United States)

    Bruce, Douglas; Harper, Gary W.; Bauermeister, Jose A.

    2015-01-01

    Introduction Minority stress processes have been shown to have significant associations with negative mental health outcomes among sexual minority populations. Given that adversity may be experienced growing up as a sexual minority in heteronormative, if not heterosexist, environments, our research on resilience among sexual minority male youth proposes that positive identity development may buffer the effects of a range of minority stress processes. Methods An ethnically diverse sample of 200 sexual minority males ages 16–24 (mean age, 20.9 years) was recruited using mixed recruitment methods. We developed and tested two new measures: concealment stress during adolescence and sexual minority-related positive identity development. We then tested a path model that assessed the effects of minority stressors, positive identity development, and social support on major depressive symptoms. Results Experience of stigma was associated with internalized homophobia (β=.138, phomophobia partially mediated experience’s effects on major depression (β=.773, OR=2.167, phomophobia (β=.418, phomophobia (β=−.527, p<.001). Concealment stress demonstrated a direct effect on major depression (β=1.400, OR=4.056, p<.001), and indirect paths to social support through positive identity development. Conclusions With these results, we offer an exploratory model that empirically identifies significant paths among minority stress dimensions, positive identity development, and major depressive symptoms. This study helps further our understanding of minority stress, identity development, and resources of resilience among sexual minority male youth. PMID:26478901

  16. Evolutionary minority game with heterogeneous strategy distribution

    Science.gov (United States)

    Lo, T. S.; Lim, S. W.; Hui, P. M.; Johnson, N. F.

    2000-11-01

    We present detailed numerical results for a modified form of the so-called Minority Game, which provides a simplified model of a competitive market. Each agent has a limited set of strategies, and competes to be in a minority. An evolutionary rule for strategy modification is included to mimic simple learning. The results can be understood by considering crowd formation within the population.

  17. FIESTA; Minority Television Programming.

    Science.gov (United States)

    Marshall, Wes; And Others

    The suggestions for planning, running, and evaluating minority television programing presented in this handbook are based on the experience and example of the FIESTA project (Tucson, Arizona). After initiating the reader into the topic of minority programing, the document disucsses the following topics: broadcast research, origins of the FIESTA…

  18. Cell models lead to understanding of multi-cellular morphogenesis consisting of successive self-construction of cells.

    Science.gov (United States)

    Honda, Hisao; Nagai, Tatsuzo

    2015-03-01

    Morphogenesis of multi-cellular organisms occurs through cell behaviours within a cell aggregate. Cell behaviours have been described using cell models involving equations of motion for cells. Cells in cell models construct shapes of the cell aggregate by themselves. Here, a history of cell models, the cell centre model and the vertex cell model, which we have constructed, are described. Furthermore, the application of these cell models is explained in detail. These cell models have been applied to transformation of cell aggregates to become spherical, formation of mammalian blastocysts and cell intercalation in elongating tissues. These are all elemental processes of morphogenesis and take place in succession during the whole developmental process. A chain of successive elemental processes leads to morphogenesis. Finally, we highlight that cell models are indispensable to understand the process whereby genes direct biological shapes.

  19. Physical-chemical modeling of elements' behavior in mixing sea and fresh waters of minor rivers in the White Sea catchment area.

    Science.gov (United States)

    Maksimova, Victoria V; Mazukhina, Svetlana I; Cherepanova, Tatiana A; Gorbacheva, Tamara T

    2017-07-29

    The physical-chemical stage of marginal filters in minor rivers of the White Sea catchment area by the example of the Umba River, flowing to Kandalaksha Gulf, has been explored. Application of the method of physical-chemical modeling on the basis of field data allowed establishing migration forms of a number of elements in the "river-sea" system and deposition of solid phases when mixing waters. The mixing of river and sea water is accompanied by the sedimentation of predominantly goethite, hydromuscovite, and hydroxylapatite. Sediments in mixing river and sea waters were found to be mainly composed by goethite, hydromuscovite, and hydroxylapatite. The research has added to the knowledge of the role of the abiotic part in the marginal filters of small rivers in the Arctic.

  20. Incumbent Decisions about Succession Transitions in Family Firms: A Conceptual Model

    Directory of Open Access Journals (Sweden)

    Britta Boyd

    2014-11-01

    Full Text Available In the family business literature, succession research has focused on the family member as they enter the leadership role or on the different issues that affect the succession process. Although researchers have acknowledged that succession in family businesses is “punctuated” by decision making events, less attention has been given to understanding how incumbents make decisions about ownership and management transitions. In an effort to continue to understand the succession process it is important to understand how incumbents make decisions about the type of transitions they intend to engage in (i.e., intra-family succession, out of family succession, or no succession. Building on the theory of planned behavior and the socioemotional wealth framework (SEW, this manuscript presents a conceptual framework to understand the factors that influence succession transitions and the role that contextual factors can play in this decision-making process. We present theory driven propositions and discuss the implications for understanding and evaluation of the succession process.

  1. Successive Generations in a Rat Model Respond Differently to a Constant Obesogenic Environment.

    Science.gov (United States)

    Tait, Alice H; Raubenheimer, David; Green, Mark P; Cupido, Cinda L; Gluckman, Peter D; Vickers, Mark H

    2015-01-01

    Research has shown that if a mother experiences a transitory perturbation to her environment during pregnancy or lactation, there are transgenerational consequences often involving a disordered metabolic phenotype in first generation offspring with recovery across subsequent generations. In contrast, little is known about the nature of the transgenerational response of offspring when a mother experiences a perturbation that is not transitory but instead persists across generations. Our study, using a rat model, subjected the parental generation to a change in environment and concomitant shift from a grain-based to obesogenic diets to generate an adipose phenotype in first generation offspring emulating a common scenario in human urbanisation and migration. We then investigated whether the obese phenotype was stable across generations when maintained in the transitioned environment, and whether dietary macronutrient balance affected the response. We found that second and third generation offspring had a reduced body fat to lean mass ratio and a reduced appetite relative to first generation offspring, irrespective of dietary macronutrient balance. The trajectory of this response is suggestive of a reduction in chronic disease risk across generations. This is one of the first studies, to our knowledge, to investigate the transgenerational response following parental transition to a persistent obesogenic environment, and to demonstrate that successive generations respond differently to this constant environment.

  2. A successful experimental model for intimal hyperplasia prevention using a resveratrol-delivering balloon.

    Science.gov (United States)

    Tolva, Valerio; Mazzola, Silvia; Zerbi, Pietro; Casana, Renato; Albertini, Mariangela; Calvillo, Laura; Selmin, Francesca; Cilurzo, Francesco

    2016-03-01

    Restenosis due to intimal hyperplasia is a major clinical problem that compromises the success of angioplasty and endovascular surgery. Resveratrol (RSV) has demonstrated a beneficial effect on restenosis from angioplasty. Unfortunately, the physicochemical characteristics of RSV reduce the practicality of its immediate clinical application. This work proposes an experimental model aiming to setup an intravessel, elutable, RSV-containing compound. A 140 μg/mL RSV sterile injectable solution with a suitable viscosity for intravascular administration by drug-delivery catheter (RSV-c) was prepared. This solution was locally administered in the common iliac artery of adult male New Zealand White rabbits using a dedicated device (Genie; Acrostak, Geneva, Switzerland) after the induction of intimal hyperplasia by traumatic angioplasty. The RSV concentrations in the wall artery were determined, and the thickness of the harvested iliac arteries was measured over a 1-month period. The Genie catheter was applied in rabbit vessels, and the local delivery resulted in an effective reduction in restenosis after plain angioplasty. Notably, RSV-c forced into the artery wall by balloon expansion might accumulate in the interstitial areas or within cells, avoiding the washout of solutions. Magnification micrographs showed intimal proliferation was significantly inhibited when RSV-c was applied. Moreover, no adverse events were documented in in vitro or in vivo studies. RSV can be advantageously administered in the arterial walls by a drug-delivery catheter to reduce the risk of restenosis. Copyright © 2016 Society for Vascular Surgery. Published by Elsevier Inc. All rights reserved.

  3. The cardiovascular perfusionist as a model for the successful technologist in high stress situations.

    Science.gov (United States)

    Friday, P J; Mook, W J

    1991-01-01

    This study investigates the psychological profiles of highly stressed medical technologists. One hundred and four individuals representing a cross-section of the United States who function as operators of heart-lung machines during open heart surgery (perfusionists) were studied using both internal and external models based on the works of Eric Berne and Karen Horney. Daily exposure to life and death responsibilities combined with the constant pressures of maintaining current technical skills can make the profession selected for this study representative of high technology professions that require a great deal of coping. Results of this study indicate that there is a balanced psychological profile in successful technologists functioning in long-term, high-stressed occupations. Female perfusionists appear to be more aggressive and critical than their male counterparts. This is seen as an attempt by female perfusionists to compensate for what has historically been a male dominanted, highly technical and high-stressed occupation. Generalizations for candidate selections to high stressed occupations could be made as well as projections of foundations for possible progressive disillusionment (burn out).

  4. Successive Generations in a Rat Model Respond Differently to a Constant Obesogenic Environment.

    Directory of Open Access Journals (Sweden)

    Alice H Tait

    Full Text Available Research has shown that if a mother experiences a transitory perturbation to her environment during pregnancy or lactation, there are transgenerational consequences often involving a disordered metabolic phenotype in first generation offspring with recovery across subsequent generations. In contrast, little is known about the nature of the transgenerational response of offspring when a mother experiences a perturbation that is not transitory but instead persists across generations. Our study, using a rat model, subjected the parental generation to a change in environment and concomitant shift from a grain-based to obesogenic diets to generate an adipose phenotype in first generation offspring emulating a common scenario in human urbanisation and migration. We then investigated whether the obese phenotype was stable across generations when maintained in the transitioned environment, and whether dietary macronutrient balance affected the response. We found that second and third generation offspring had a reduced body fat to lean mass ratio and a reduced appetite relative to first generation offspring, irrespective of dietary macronutrient balance. The trajectory of this response is suggestive of a reduction in chronic disease risk across generations. This is one of the first studies, to our knowledge, to investigate the transgenerational response following parental transition to a persistent obesogenic environment, and to demonstrate that successive generations respond differently to this constant environment.

  5. Successful intervention models for obesity prevention: the role of healthy life styles

    Directory of Open Access Journals (Sweden)

    Vicente Martínez Vizcaíno

    2013-09-01

    Full Text Available Children obesity is considered a serious public health problem around the world. In Spain, the prevalence of overweight/obesity is reaching alarming figures, exceeding 35% of the children. Several hypotheses suggest that the energy balance model does not fit very well when analyzing the causes of the current obesity epidemic and, although genetics seems to explain up to 30% of the likelihood to become obese in infancy, has been suggested that genetics might be influenced by environment factors including vigorous physical activity (PA. Some recent systematic reviews indicate that there is enough evidence about the effectiveness of interventions to prevent obesity in children 6-12 years old; however, the heterogeneity of the effect, and the potential selection, information and publication biases that undermine the validity of these studies, thus their results should be interpreted with caution. In Spain, an extracurricular PA program of leisure-time (MOVI has evidenced some effectiveness on reducing the adiposity and on improving the lipid profile in schoolchildren. To overcome some weakness of MOVI program, a second edition of this study was designed. The objectives of this review are twofold: 1 to analyze latest data of the obesity epidemic in Spain; and 2 to describe the main features of MOVI-2 program, and overall of the successful interventions to prevent children obesity.

  6. Alberta Healthy Living Program--a model for successful integration of chronic disease management services.

    Science.gov (United States)

    Morrin, Louise; Britten, Judith; Davachi, Shahnaz; Knight, Holly

    2013-08-01

    The most common presentation of chronic disease is multimorbidity. Disease management strategies are similar across most chronic diseases. Given the prevalence of multimorbidity and the commonality in approaches, fragmented single disease management must be replaced with integrated care of the whole person. The Alberta Healthy Living Program, a community-based chronic disease management program, supports adults with, or at risk for, chronic disease to improve their health and well being. Participants gain confidence and skills in how to manage their chronic disease(s) by learning to understand their health condition, make healthy eating choices, exercise safely and cope emotionally. The program includes 3 service pillars: disease-specific and general health patient education, disease-spanning supervised exercise and Better Choices, Better Health(TM) self-management workshops. Services are delivered in the community by an interprofessional team and can be tailored to target specific diverse and vulnerable populations, such as Aboriginal, ethno-cultural and francophone groups and those experiencing homelessness. Programs may be offered as a partnership between Alberta Health Services, primary care and community organizations. Common standards reduce provincial variation in care, yet maintain sufficient flexibility to meet local and diverse needs and achieve equity in care. The model has been implemented successfully in 108 communities across Alberta. This approach is associated with reduced acute care utilization and improved clinical indicators, and achieves efficiencies through an integrated, disease-spanning patient-centred approach. Crown Copyright © 2013. Published by Elsevier Inc. All rights reserved.

  7. Is Russia successful in attracting foreign direct investment? Evidence based on gravity model estimation

    Directory of Open Access Journals (Sweden)

    Mariev Oleg

    2016-09-01

    Full Text Available The aim of this paper is twofold. First, it is to answer the question of whether Russia is successful in attracting foreign direct investment (FDI. Second, it is to identify partner countries that “overinvest” and “underinvest” in the Russian economy. We do this by calculating potential FDI inflows to Russia and comparing them with actual values. This research is associated with the empirical estimation of factors explaining FDI flows between countries. The methodological foundation used for the research is the gravity model of foreign direct investment. In discussing the pros and cons of different econometric methods of the estimation gravity equation, we conclude that the Poisson pseudo maximum likelihood method with instrumental variables (IV PPML is one of the best options in our case. Using a database covering about 70% of FDI flows for the period of 2001-2011, we discover the following factors that explain the variance of bilateral FDI flows in the world economy: GDP value of investing country, GDP value of recipient country, distance between countries, remoteness of investor country, remoteness of recipient country, level of institutions development in host country, wage level in host country, membership of two countries in a regional economic union, common official language, common border and colonial relationships between countries in the past. The potential values of FDI inflows are calculated using coefficients of regressors from the econometric model. We discover that the Russian economy performs very well in attracting FDI: the actual FDI inflows exceed potential values by 1.72 times. Large developed countries (France, Germany, UK, Italy overinvest in the Russian economy, while smaller and less developed countries (Czech Republic, Belarus, Denmark, Ukraine underinvest in Russia. Countries of Southeast Asia (China, South Korea, Japan also underinvest in the Russian economy.

  8. Successive smoothing algorithm for constructing the semiempirical model developed at ONERA to predict unsteady aerodynamic forces. [aeroelasticity in helicopters

    Science.gov (United States)

    Petot, D.; Loiseau, H.

    1982-01-01

    Unsteady aerodynamic methods adopted for the study of aeroelasticity in helicopters are considered with focus on the development of a semiempirical model of unsteady aerodynamic forces acting on an oscillating profile at high incidence. The successive smoothing algorithm described leads to the model's coefficients in a very satisfactory manner.

  9. Common duckweed (Lemna minor is a versatile high-throughput infection model for the Burkholderia cepacia complex and other pathogenic bacteria.

    Directory of Open Access Journals (Sweden)

    Euan L S Thomson

    Full Text Available Members of the Burkholderia cepacia complex (Bcc have emerged in recent decades as problematic pulmonary pathogens of cystic fibrosis (CF patients, with severe infections progressing to acute necrotizing pneumonia and sepsis. This study presents evidence that Lemna minor (Common duckweed is useful as a plant model for the Bcc infectious process, and has potential as a model system for bacterial pathogenesis in general. To investigate the relationship between Bcc virulence in duckweed and Galleria mellonella (Greater wax moth larvae, a previously established Bcc infection model, a duckweed survival assay was developed and used to determine LD50 values. A strong correlation (R(2 = 0.81 was found between the strains' virulence ranks in the two infection models, suggesting conserved pathways in these vastly different hosts. To broaden the application of the duckweed model, enteropathogenic Escherichia coli (EPEC and five isogenic mutants with previously established LD50 values in the larval model were tested against duckweed, and a strong correlation (R(2 = 0.93 was found between their raw LD50 values. Potential virulence factors in B. cenocepacia K56-2 were identified using a high-throughput screen against single duckweed plants. In addition to the previously characterized antifungal compound (AFC cluster genes, several uncharacterized genes were discovered including a novel lysR regulator, a histidine biosynthesis gene hisG, and a gene located near the gene encoding the recently characterized virulence factor SuhB(Bc. Finally, to demonstrate the utility of this model in therapeutic applications, duckweed was rescued from Bcc infection by treating with bacteriophage at 6-h intervals. It was observed that phage application became ineffective at a timepoint that coincided with a sharp increase in bacterial invasion of plant tissue. These results indicate that common duckweed can serve as an effective infection model for the investigation of bacterial

  10. Minority stress is longitudinally associated with alcohol-related problems among sexual minority women.

    Science.gov (United States)

    Wilson, Sarah M; Gilmore, Amanda K; Rhew, Isaac C; Hodge, Kimberley A; Kaysen, Debra L

    2016-10-01

    Compared to sexual minority men and heterosexual women, sexual minority women report elevated alcohol use in young adulthood. Heavy alcohol use and alcohol use disorders disproportionately affect sexual minority women across the lifespan, yet there is limited research investigating reasons for such associations. The present study investigates longitudinal associations between minority stress and both alcohol use as well as self-rated drinking consequences. Participants (N=1057) were self-identified lesbian (40.5%) and bisexual (59.5%) women between the ages of 18 to 25 recruited from across the U.S. using online advertisements. Participants completed four annual surveys. Hurdle mixed effects models were used to assess associations between minority stress and typical weekly drinking and drinking consequences one year later. Minority stress was not significantly associated with subsequent typical drinking. However, minority stress was significantly associated with having any alcohol consequences as well as the count of alcohol consequences one year later after controlling for covariates. Consistent with extant literature, this study provides evidence for a prospective association between minority stress experienced by sexual minority women and drinking consequences. This study also provides support for the potential impact of efforts to reduce minority stress faced by sexual minority women.

  11. The quasi-periodicity of the minority game revisited

    Science.gov (United States)

    Acosta, Gabriel; Caridi, Inés; Guala, Sebastián; Marenco, Javier

    2013-10-01

    We analyze two well-known related aspects regarding the sequence of minority sides from the Minority Game (MG) in its symmetric phase: period-two dynamics and quasi-periodic behavior. We also study the sequence of minority sides in a general way within a graph-theoretical framework. In order to analyze the outcome dynamics of the MG, it is useful to define the MG, namely an MG with a new choosing rule of the strategy to play, which takes into account both prior preferences and game information. In this way, each time an agent is undecided because two of her best strategies predict different choices while being equally successful so far, she selects her a priori favorite strategy to play, instead of performing a random tie-break as in the MG. This new choosing rule leaves the generic behavior of the model unaffected and simplifies the game analysis. Furthermore, interesting properties arise which are only partially present in the MG, like the quasi-periodic behavior of the sequence of minority sides, which turns out to be periodic for the MG.

  12. The importance of a precise definition, comprehensive model, and critical discussion of successful aging at work

    NARCIS (Netherlands)

    Zacher, Hannes

    2015-01-01

    It is crucial to advance understanding of the concept of successful aging at work to guide rigorous future research and effective practice. Drawing on the gerontology and life-span developmental literatures, I recently proposed a definition and theoretical framework of successful aging at work that

  13. Choice of blood rheology model has minor impact on computational assessment of shear stress mediated vascular risk

    CERN Document Server

    Bernabeu, Miguel O; Groen, Derek; Carver, Hywel B; Hetherington, James; Krüger, Timm; Coveney, Peter V

    2012-01-01

    Perturbations to the homeostatic distribution of mechanical forces exerted by blood on the endothelial layer have been correlated with vascular pathologies including intracranial aneurysms and atherosclerosis. Recent computational work suggests that in order to correctly characterise such forces, the shear-thinning properties of blood must be taken into account. To the best of our knowledge, these findings have never been compared against experimentally observed pathological thresholds. In the current work, we apply the three-band diagram (TBD) analysis due to Gizzi et al. to assess the impact of the choice of blood rheology model on a computational model of the right middle cerebral artery. Our results show that the differences between the wall shear stress predicted by a Newtonian model and the well known Carreau-Yasuda generalized Newtonian model are only significant if the vascular pathology under study is associated with a pathological threshold in the range 0.94 Pa to 1.56 Pa, where the results of the T...

  14. Occupational skin diseases: a successful model for multidisciplinary networking in preventive medicine

    Directory of Open Access Journals (Sweden)

    John, Swen Malte

    2008-10-01

    outpatient dermatological and educational intervention seminars (secondary individual prevention, SIP are offered to affected employees. We recently demonstrated the sustainability of the SIP approach in hairdressing for periods of up to 10 years.For those cases of OD, in which the abovementioned outpatient prevention measures are not sufficiently successful, specific interdisciplinary inpatient prevention measures have been developed (tertiary individual prevention, or TIP. TIP represents the ultima ratio within the hierarchical prevention concept of the Osnabrück Model. TIP comprises 2–3 weeks of inpatient dermatological diagnostics and treatment as well as intensive health-related pedagogic and psychological counseling. Subsequent to this, 3 consecutive weeks of outpatient treatment are given by a local dermatologist. Each patient remains on sick-leave for a total of 6 weeks to allow full barrier recovery. A total of 764 out of 1164 (66% TIP patients treated in our university, followed-up regularly by a local dermatologist for up to 1 year, were successful in remaining in their respective (risk- professions as assessed by questionnaire 1 year after discharge.Recently obtained SIP and TIP data reveal that there are reliable, evidence-based options for multidisciplinary prevention and patient management of OD, using a combined approach by a network of clinics, practices and statutory social insurance bodies. A multicentre study, which aims to further standardize TIP and evaluate sustainability of prevention in more depth (3-year dermatological follow-up of 1000 OD patients is currently being conducted in Germany.

  15. A prognostic model to predict the success of artificial insemination in dairy cows based on readily available data.

    Science.gov (United States)

    Rutten, C J; Steeneveld, W; Vernooij, J C M; Huijps, K; Nielen, M; Hogeveen, H

    2016-08-01

    A prognosis of the likelihood of insemination success is valuable information for the decision to start inseminating a cow. This decision is important for the reproduction management of dairy farms. The aim of this study was to develop a prognostic model for the likelihood of successful first insemination. The parameters considered for the model are readily available on farm at the time a farmer makes breeding decisions. In the first step, variables are selected for the prognostic model that have prognostic value for the likelihood of a successful first insemination. In the second step, farm effects on the likelihood of a successful insemination are quantified and the prognostic model is cross-validated. Logistic regression with a random effect for farm was used to develop the prognostic model. Insemination and test-day milk production data from 2,000 commercial Dutch dairy farms were obtained, and 190,541 first inseminations from this data set were used for model selection. The following variables were used in the selection process: parity, days in milk, days to peak production, production level relative to herd mates, milk yield, breed of the cow, insemination season and calving season, log of the ratio of fat to protein content, and body condition score at insemination. Variables were selected in a forward selection and backward elimination, based on the Akaike information criterion. The variables that contributed most to the model were random farm effect, relative production factor, and milk yield at insemination. The parameters were estimated in a bootstrap analysis and a cross-validation was conducted within this bootstrap analysis. The parameter estimates for body condition score at insemination varied most, indicating that this effect varied most among Dutch dairy farms. The cross-validation showed that the prognosis of insemination success closely resembled the mean insemination success observed in the data set. Insemination success depends on

  16. Temperature acclimation of photosynthesis has only minor effects on gross primary productivity (GPP) in an Earth System Model (ESM)

    Science.gov (United States)

    Goll, Daniel; Brovkin, Victor; Kattge, Jens; Zaehle, Soenke; Reick, Christian

    2013-04-01

    The productivity of terrestrial plants influences the dynamics of atmospheric CO2. It is therefore crucial to understand and quantify productivity and predict its future responses to climate change and increasing atmospheric CO2 concentrations. Recently, Booth et al. (2012) found that the temperature dependence of photosynthesis is the most important uncertainty of the climate-carbon cycle feedback in a comprehensive ESM. Using trait data, Kattge and Knorr (2007) found that photosynthesis, in particular the acclimation of the maximum carboxylation rate (Vmax) and electron transport rate (Jmax), acclimates to prevailing temperatures. As a first attempt to address temperature acclimation of photosynthesis on global scale, we replaced the simplified exponential formulation of the temperature dependence of Vmax and Jmax in the Max Planck Institute Earth System Model (MPI-ESM) by a physiologically more plausible and justified model with short-term optimum temperature. For temperature acclimation we then implemented the acclimation descriptions by Kattge and Knorr (2007). We conducted sets of simulations on site scale driven by meteorological observations, and simulations on global scale for present day climate and for a 6 K warmer climate. The physiologically more plausible and justified model with short-term optimum temperature and temperature acclimation yields similar results as the old exponential formulation not accounting for either process. With the new model, global GPP for present day and in the warming scenario is increased by 0.7% and 0.9%, respectively. Acclimation causes a slight shift of productivity from high to low latitudes, too. A slightly larger effect on GPP has the replacement of the exponential formulation with the model with optimum temperature, resulting in a 1.2% decrease in global GPP under both climatic conditions. Acclimation thus compensates for the effects of the physiologically based temperature optimum of photosynthesis. As the effects

  17. A predictive model of serum 25-hydroxyvitamin D in UK white as well as black and Asian minority ethnic population groups for application in food fortification strategy development towards vitamin D deficiency prevention.

    Science.gov (United States)

    O'Neill, Colette M; Kazantzidis, Andreas; Kiely, Mairead; Cox, Lorna; Meadows, Sarah; Goldberg, Gail; Prentice, Ann; Kift, Richard; Webb, Ann R; Cashman, Kevin D

    2017-10-01

    Within Europe, dark-skinned ethnic groups have been shown to be at much increased risk of vitamin D deficiency compared to their white counterparts. Increasing the dietary supply of vitamin D is potentially the only modifiable environmental component that can be used to prevent vitamin D deficiency among dark-skinned ethnic groups living at high latitude. Empirical data to support development of such strategies is largely lacking. This paper presents the development and validation of an integrated model that may be adapted within the UK population to design fortification strategies for vitamin D, for application in both white and black and Asian minority ethnic (BAME) population groups. Using a step-wise approach, models based on available ultraviolet B (UVB) data, hours of sunlight and two key components (the dose-response of serum 25-hydroxyvitamin D [25(OH)D] to UVB in white and BAME persons and the dose-response of 25(OH)D to vitamin D) were used to predict changes population serum 25(OH)D concentrations throughout the year, stratified by ethnicity, 'via increases' in dietary intake arising from food fortification simulations. The integrated model successfully predicted measured average wintertime 25(OH)D concentrations in addition to the prevalence of serum 25(OH)D population-relevant proportions of 97% white and 7% BAME (23.2% predicted versus 23.1% measured). Thus this integrated model presents a viable approach to estimating changes in the population concentrations of 25(OH)D that may arise from various dietary fortification approaches. Copyright © 2016 Elsevier Ltd. All rights reserved.

  18. Maximum Potential Score (MPS: An operating model for a successful customer-focused strategy.

    Directory of Open Access Journals (Sweden)

    Cabello González, José Manuel

    2015-11-01

    Full Text Available One of marketers’ chief objectives is to achieve customer loyalty, which is a key factor for profitable growth. Therefore, they need to develop a strategy that attracts and maintains customers, giving them adequate motives, both tangible (prices and promotions and intangible (personalized service and treatment, to satisfy a customer and make him loyal to the company. Finding a way to accurately measure satisfaction and customer loyalty is very important. With regard to typical Relationship Marketing measures, we can consider listening to customers, which can help to achieve a competitive sustainable advantage. Customer satisfaction surveys are essential tools for listening to customers. Short questionnaires have gained considerable acceptance among marketers as a means to achieve a customer satisfaction measure. Our research provides an indication of the benefits of a short questionnaire (one/three questions. We find that the number of questions survey is significantly related to the participation in the survey (Net Promoter Score or NPS. We also prove that a the three question survey is more likely to have more participants than a traditional survey (Maximum Potential Score or MPS . Our main goal is to analyse one method as a potential predictor of customer loyalty. Using surveys, we attempt to empirically establish the causal factors in determining the satisfaction of customers. This paper describes a maximum potential operating model that captures with a three questions survey, important elements for a successful customer-focused strategy. MPS may give us lower participation rates than NPS but important information that helps to convert unhappy customers or just satisfied customers, into loyal customers.

  19. Cultural heritage conservation and communication by digital modeling tools. Case studies: minor architectures of the Thirties in the Turin area

    Science.gov (United States)

    Bruno, A., Jr.; Spallone, R.

    2015-08-01

    Between the end of the twenties and the beginning of the World war two Turin, as the most of the Italian cities, was endowed by the fascist regime of many new buildings to guarantee its visibility and to control the territory: the fascist party main houses and the local ones. The style that was adopted for these constructions was inspired by the guide lines of the Modern movement which were spreading by a generation of architects as Le Corbusier, Gropius, Mendelsohn. At the end of the war many buildings were reconverted to several functions that led heavy transformations not respectful of the original worth, other were demolished. Today it's possible to rebuild those lost architectures in their primal format as it was created by their architects on paper (and in their mind). This process can guarantee the three-dimensional perception, the authenticity of the materials and the placement into the Turin urban tissue, using static and dynamic digital representation systems. The "three-dimensional re-drawing" of the projects, thought as an heuristic practice devoted to reveal the original idea of the project, inserts itself in a digital model of the urban and natural context as we can live it today, to simulate the perceptive effects that the building could stir up today. The modeling skills are the basis to product videos able to explore the relationship between the environment and "re-built architectures", describing with the synthetic movie techniques, the main formal and perceptive roots. The model represents a scientific product that can be involved in a virtual archive of cultural goods to preserve the collective memory of the architectural and urban past image of Turin.

  20. BCDC Minor Permits

    Data.gov (United States)

    California Department of Resources — An administrative permit can be issued for an activity that qualifies as a minor repair or improvement in a relatively short period of time and without a public...

  1. Minority Veteran Report

    Data.gov (United States)

    Department of Veterans Affairs — This report is the first comprehensive report that chronicles the history of racial and ethnic minorities in the military and as Veterans, profiles characteristics...

  2. Minority Veteran Report 2014

    Data.gov (United States)

    Department of Veterans Affairs — This report is the first comprehensive report that chronicles the history of racial and ethnic minorities in the military and as Veterans, profiles characteristics...

  3. Minorities in Iran

    DEFF Research Database (Denmark)

    Elling, Rasmus Christian

    Contrary to the popular understanding of Iran as a Persian nation, half of the country's population consists of minorities, among whom there has been significant ethnic mobilization at crucial stages in Iranian history. One such stage is now: suppressed minority demands, identity claims, and deba......Contrary to the popular understanding of Iran as a Persian nation, half of the country's population consists of minorities, among whom there has been significant ethnic mobilization at crucial stages in Iranian history. One such stage is now: suppressed minority demands, identity claims......, and debates on diversity have entered public discourse and politics. In 2005–2007, Iran was rocked by the most widespread ethnic unrest experienced in that country since the revolution. The same period was also marked by the re-emergence of nationalism. This interdisciplinary book takes a long-overdue step...

  4. Neptune: Minor Satellites

    Science.gov (United States)

    Murdin, P.

    2003-04-01

    All but one of Neptune's minor satellites orbit within or just outside its ringsystem; the exception is the distant object Nereid. Some of them are betterdescribed as `mid-sized' rather than `minor', but are included under thisheading as little is known of them. The inner four, with approximatediameters, are Naiad (60 km), Thalassa (80 km), Despina (150 km) and Galatea(160 km). The first three lie...

  5. The organizational structure and group the following criteria in assessing the success of the model construction companies

    Directory of Open Access Journals (Sweden)

    Đurović Dušan D.

    2016-01-01

    Full Text Available The organization - an organizational structure presents a schedule of all the potential companies covering all human and material resources in the enterprise, which ensure the realization of business goals in function of their success. Defining the process, the use of SWOT analysis and evaluation of success using appropriate models condition and promote the role of the organization in a construction company. This article is an excerpt from the research within relevant doctoral dissertation [5] and displays the result of the evaluation of business performance of construction companies applying AHP model.

  6. Air Dispersion Modeling for the INL Application for a Synthetic Minor Sitewide Air Quality Permit to Construct with a Facility Emission Cap Component

    Energy Technology Data Exchange (ETDEWEB)

    Sondrup, Andrus Jeffrey [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-10-01

    The Department of Energy Idaho Operations Office (DOE-ID) is applying for a synthetic minor, Sitewide, air quality permit to construct (PTC) with a facility emission cap (FEC) component from the Idaho Department of Environmental Quality (DEQ) for Idaho National Laboratory (INL) to limit its potential to emit to less than major facility limits for criteria air pollutants (CAPs) and hazardous air pollutants (HAPs) regulated under the Clean Air Act. This document is supplied as an appendix to the application, Idaho National Laboratory Application for a Synthetic Minor Sitewide Air Quality Permit to Construct with a Facility Emissions Cap Component, hereafter referred to as “permit application” (DOE-ID 2015). Air dispersion modeling was performed as part of the permit application process to demonstrate pollutant emissions from the INL will not cause a violation of any ambient air quality standards. This report documents the modeling methodology and results for the air dispersion impact analysis. All CAPs regulated under Section 109 of the Clean Air Act were modeled with the exception of lead (Pb) and ozone, which are not required to be modeled by DEQ. Modeling was not performed for toxic air pollutants (TAPs) as uncontrolled emissions did not exceed screening emission levels for carcinogenic and non-carcinogenic TAPs. Modeling for CAPs was performed with the EPA approved AERMOD dispersion modeling system (Version 14134) (EPA 2004a) and five years (2000-2004) of meteorological data. The meteorological data set was produced with the companion AERMET model (Version 14134) (EPA 2004b) using surface data from the Idaho Falls airport, and upper-air data from Boise International Airport supplied by DEQ. Onsite meteorological data from the Grid 3 Mesonet tower located near the center of the INL (north of INTEC) and supplied by the local National Oceanic and Atmospheric Administration (NOAA) office was used for surface wind directions and wind speeds. Surface data (i

  7. Long-term behavior of the concentration of the minor constituents in the mesosphere – a model study

    Directory of Open Access Journals (Sweden)

    M. Grygalashvyly

    2009-04-01

    Full Text Available We investigate the influence the rising concentrations of methane, nitrous oxide and carbon dioxide which have occurred since the pre-industrial era, have had on the chemistry of the mesosphere. For this investigation we use our global 3-D-model COMMA-IAP which was designed for the exploration of the MLT-region and in particular the extended mesopause region. Assumptions and approximations for the trends in the Lyman-α flux (needed for the water vapor dissociation rate, methane and the water vapor mixing ratio at the hygropause are necessary to accomplish this study. To approximate the solar Lyman-α flux back to the pre-industrial time, we derived a quadratic fit using the sunspot number record which extends back to 1749 and is the only solar proxy available for the Lyman-α flux prior to 1947. We assume that methane increases with a constant growth rate from the pre-industrial era to the present. An unsolved problem for the model calculations consists of how the water vapor mixing ratio at the hygropause should be specified during this period. We assume that the hygropause was dryer during pre-industrial times than the present. As a consequence of methane oxidation, the model simulation indicates that the middle atmosphere has become more humid as a result of the rising methane concentration, but with some dependence on height and with a small time delay of few years. The solar influence on the water vapor mixing ratio is insignificant below about 80 km in summer high latitudes, but becomes increasingly more important above this altitude. The enhanced water vapor concentration increases the hydrogen radical concentration and reduces the mesospheric ozone. A second region of stronger ozone decrease is located in the vicinity of the stratopause. Increases in CO2 concentration enhance slightly the concentration of CO in the mesosphere. However, its influence upon the chemistry is small and its main effect is connected with a cooling

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

    Science.gov (United States)

    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

  9. Modelling the impact of noctilucent cloud formation on atomic oxygen and other minor constituents of the summer mesosphere

    Directory of Open Access Journals (Sweden)

    B. J. Murray

    2005-01-01

    Full Text Available The formation, evolution and eventual sublimation of noctilucent clouds (NLC may have a significant effect on the odd oxygen and hydrogen chemistry of the high latitude summer mesosphere. Three mechanisms are considered here: the direct uptake of atomic oxygen on the surface of the ice particles; the redistribution of water vapour, which changes the photochemical source of odd hydrogen species; and the direct photolysis of the ice particles themselves to produce odd hydrogen species in the gas phase. A 1-D photochemical model is employed to investigate the potential importance of these mechanisms. This shows, using the recently measured uptake coefficients of O on ice, that the heterogeneous removal of O on the surface of the cloud particles is too slow by at least a factor of 5x103 to compete with gas-phase O chemistry. The second and third mechanisms involve the solar Lyman-α photolysis of H2O in the gas and solid phase, respectively. During twilight, Lyman-α radiation is severely attenuated and these mechanisms are insignificant. In contrast, when the upper mesosphere is fully illuminated there is a dramatic impact on the O profile, with depletion of O at the base of the cloud layer of close to an order of magnitude. A correspondingly large depletion in O3 is also predicted, while H, OH, HO2 and H2O2 are found to be enhanced by factors of 3-5. In fact, rocket-borne mass spectrometer measurements during summer have revealed local H2O2 enhancements in the region of the clouds. Rocket-borne measurements of atomic O and O3 profiles in the presence of mesospheric clouds in the daytime are highly desirable to test the predictions of this model and our understanding of the genesis of mesospheric clouds.

  10. ANALYSIS OF INFORMATION SYSTEM IMPLEMENTATION IN BINUS UNIVERSITY USING DELONE AND MCLEAN INFORMATION SYSTEM SUCCESS MODEL AND COBIT FRAMEWORK

    Directory of Open Access Journals (Sweden)

    Johan Muliadi Kerta

    2013-05-01

    Full Text Available The success of implementation of information system in an organization will supportthe organization in the process of achieving goals. Successful information system will support theorganization's day-to-day operations, so that problem can be resolved more quickly and easily. Theinformation system which has been developed and implemented is also necessary to measure thematurity level. Therefore, it can determine whether the implementation of information systemsmade in accordance with the goals of the organization. Measuring the success of informationsystems used the DeLone and McLean IS success model. To measure the maturity level ofinformation systems used COBIT (Control Objectives for Information and related Technologyframeworks that provides best practices for IT governance and control. The results of this analysiswill assist and support the IT team in order to develop and build information systems that better fitthe needs and goals of the organization.

  11. The Minority Game: an introductory guide

    OpenAIRE

    Moro, Esteban

    2004-01-01

    The Minority Game is a simple model for the collective behavior of agents in an idealized situation where they have to compete through adaptation for a finite resource. This review summarizes the statistical mechanics community efforts to clear up and understand the behavior of this model. Our emphasis is on trying to derive the underlying effective equations which govern the dynamics of the original Minority Game, and on making an interpretation of the results from the point of view of the s...

  12. Modelling the impact of noctilucent cloud formation on atomic oxygen and other minor constituents of the summer mesosphere

    Directory of Open Access Journals (Sweden)

    B. J. Murray

    2004-11-01

    Full Text Available The formation, evolution and eventual sublimation of noctilucent clouds (NLC could have a significant effect on the odd oxygen and hydrogen chemistry of the high latitude summer mesosphere. Three mechanisms are considered here: the direct uptake of atomic oxygen on the surface of the ice particles; the redistribution of water vapour, which changes the photochemical source of odd hydrogen species; and the direct photolysis of the ice particles themselves to produce odd hydrogen species in the gas phase. A 1-D photochemical model is employed to investigate the potential importance of these mechanisms. This shows, using the recently measured uptake coefficients of O on ice, that the heterogeneous removal of O on the surface of the cloud particles is too slow by at least a factor of 5×103 to compete with gas-phase O chemistry. The second and third mechanisms involve the solar Lyman-α photolysis of H2O in the gas and solid phase, respectively. During twilight, Lyman-α radiation is severely attenuated and these mechanisms are insignificant. In contrast, when the upper mesosphere is fully illuminated there is a dramatic impact on the O profile, with depletion of O at the base of the cloud layer of close to an order of magnitude. A correspondingly large depletion in O3 is also predicted, while H, OH, HO2 and H2O2 are found to be enhanced by factors of 3–5. In fact, rocket-borne mass spectrometer measurements during summer have revealed local H2O2 enhancements in the region of the clouds. Rocket-borne measurements of atomic O and O3 profiles in the presence of mesospheric clouds in the daytime are highly desirable to test the predictions of this model and our understanding of the genesis of mesospheric clouds.

  13. Much damage for little advantage: Field studies and morphodynamic modelling highlight the environmental impact of an apparently minor coastal mismanagement

    Science.gov (United States)

    Lasagna, Roberta; Montefalcone, Monica; Albertelli, Giancarlo; Corradi, Nicola; Ferrari, Marco; Morri, Carla; Bianchi, Carlo Nike

    2011-09-01

    While coastal management activities have long been known to exert a strong influence on the health of marine ecosystems, neither scientists nor administrators have realized that small interventions may lead to disproportionately larger impacts. This study investigated the broad and long-lasting environmental consequences of the construction of an ill-planned, although small (only 12 m long) jetty for pleasure crafts on the hydrodynamic conditions and on the meadow of the seagrass Posidonia oceanica of an embayed cove in the Ligurian Sea (NW Mediterranean). There, P. oceanica used to develop on a high (>1.5 m) matte (a lignified terrace causing seafloor elevation) in which the leaves reach the surface and form a compact natural barrier to waves in front of the beach. Such a so-called 'fringing reef' of P. oceanica is today recognized of high ecological value and specific conservation efforts are required. The construction of the jetty implied the cutting of the matte, which directly destroyed part of the fringing reef. In addition, meadow mapping and sedimentological analyses coupled with morphodynamic modelling showed that the ecosystem of the whole cove had been greatly altered by the jetty. We used the geometric planform approach, a proper tool in the study of headland-controlled embayment, both to characterise the present situation of Prelo cove and to simulate the original one, before the jetty was built. In the long term, such a small jetty completely altered the configuration and the hydrodynamic conditions of the whole cove, splitting the original pocket beach into two smaller ones and creating strong rip-currents flowing seaward along the jetty. These rip-currents enhanced erosion of residual shallow portions of the meadow and further modified the sedimentary fluxes in shallow waters. A century after the construction of the jetty, an irreversible environmental damage has occurred, as the slow growing rate of P. oceanica implies that the high matte terrace

  14. A conceptual model of individual competency components as one of the predictors of success in mergers and acquisitions

    Directory of Open Access Journals (Sweden)

    Darko Kovač

    2008-12-01

    Full Text Available The increasing challenge of how to balance “soft” human factors with “hard” financial factors in mergers and acquisitions (M&A to be successful is not new. However, the real challenge lies in the question of how, and with which yardstick, to measure and compare the human factor in both the acquiring and the acquired companies in all phases of M&A. In this study, a model for measuring and comparing the human factor with competencies is presented. The model enables the measuring of soft factors with quantitative criteria. A tripartite individual competency components construct is conceived: cognitive, affective and conative, to which the personal value system is added. The model discussed is based on empirical findings and the cases of two companies and literature. The model enables companies to compare differences in competencies and thus to plan activities how to overcome those differences and achieve a higher success rate in M&A.

  15. The Success for All Model of School Reform: Early Findings from the Investing in Innovation (i3) Scale-Up

    Science.gov (United States)

    Quint, Janet C.; Balu, Rekha; DeLaurentis, Micah; Rappaport, Shelley; Smith, Thomas J.; Zhu, Pei

    2013-01-01

    First implemented in 1987, Success for All (SFA) is one of the best-known and most thoroughly evaluated school reform models. It combines three basic elements: (1) Reading instruction that emphasizes phonics for beginning readers and comprehension for students at all levels, and that is characterized by a highly structured curriculum, an emphasis…

  16. Modelling cheetah relocation success in southern Africa using an iterative Bayesian network development cycle

    CSIR Research Space (South Africa)

    Johnson, S

    2010-02-01

    Full Text Available Relocation is one of the strategies used by conservationists to deal with problem cheetahs in southern Africa. The success of a relocation event and the factors that influence it within the broader context of long-term viability of wild cheetah...

  17. Organizing for Student Success: The University College Model. The First Year Experience Monograph Series No. 53

    Science.gov (United States)

    Evenbeck, Scott E.; Jackson, Barbara; Smith, Maggy; Ward, Dorothy

    2010-01-01

    Organizing for Student Success draws on data from more than 50 institutions to provide insight into how university colleges are organized, the initiatives they house, and the practices in place to ensure their effectiveness. Twenty case studies from 15 different campuses offer an in-depth understanding of institutional practice. Ultimately,…

  18. A Model for Intervention and Predicting Success on the National Council Licensure Examination for Registered Nurses.

    Science.gov (United States)

    Heupel, Carol

    1994-01-01

    The relationship of selected academic variables to National Council Licensure Examination for Registered Nurses (NCLEX-RN) performance was studied and a "best set" of indicators predictive of NCLEX-RN success was identified. Results indicated that selected nursing theory courses and the junior year grade point average could be used to…

  19. Modeling management information systems’ success: a study in the domain of further education and training

    CSIR Research Space (South Africa)

    Visser, M

    2012-10-01

    Full Text Available and Training (FET) sector to meet this need for capacity development in critical, scarce and intermediate skills. Management information systems (MIS) are pivotal in the efficient and effective running of FET colleges. Therefore, the evaluation of MIS success...

  20. An Empirical Test of a Comprehensive Model for Predicting Successful Information Systems Implementation

    Science.gov (United States)

    1989-12-01

    among the issues related to IS implementation success. A study by Albert Lederer and Aubrey Mendelow concentrates on just that issue. Specifically, they...Wiley & Sons, 1987. 26. Lederer, Albert L. and Aubrey L. Mendelow . "Information Systems Planning: Top Management Takes Control, Business Horizons, 31

  1. Creating a Successful Citizen Science Model to Detect and Report Invasive Species

    Science.gov (United States)

    Gallo, Travis; Waitt, Damon

    2011-01-01

    The Invaders of Texas program is a successful citizen science program in which volunteers survey and monitor invasive plants throughout Texas. Invasive plants are being introduced at alarming rates, and our limited knowledge about their distribution is a major cause for concern. The Invaders of Texas program trains citizen scientists to detect the…

  2. Sharing Responsibility for College Success: A Model Partnership Moves Students to Diplomas and Degrees

    Science.gov (United States)

    Vargas, Joel

    2014-01-01

    In order to prepare the large number of postsecondary-educated youth our economy demands, high schools and higher education must break through the boundaries that have traditionally separated them and assume joint responsibility for student success. This brief describes an unusual school district partnership with colleges that has achieved…

  3. A Model of Career Success: A Longitudinal Study of Emergency Physicians

    Science.gov (United States)

    Pachulicz, Sarah; Schmitt, Neal; Kuljanin, Goran

    2008-01-01

    Objective and subjective career success were hypothesized to mediate the relationships between sociodemographic variables, human capital indices, individual difference variables, and organizational sponsorship as inputs and a retirement decision and intentions to leave either the specialty of emergency medicine (EM) or medicine as output…

  4. Knowledge Management: Review of the Critical Success Factors and Development of a Conceptual Classification Model

    NARCIS (Netherlands)

    Sedighi, M.; Zand, F.

    2012-01-01

    Knowledge management is a critical issue in today's business world. Knowledge is considered as one of the most strategic resources of the firm and sources of competitive advantage. This research provides a comprehensive review of the literature on the Critical Success Factors (CSFs) and identifies e

  5. Southern Living and Southern Voices: Models of Regional Magazine Success and Failure.

    Science.gov (United States)

    English, John W.

    This paper examines the phenomenon of magazine success and failure as demonstrated by two regional magazines, "Southern Living" and "Southern Voices." The former, a combination of articles about food, travel, sports, and other positive aspects of southern life, was quickly accepted by its readers and advertisers and began…

  6. Creating a Successful Citizen Science Model to Detect and Report Invasive Species

    Science.gov (United States)

    Gallo, Travis; Waitt, Damon

    2011-01-01

    The Invaders of Texas program is a successful citizen science program in which volunteers survey and monitor invasive plants throughout Texas. Invasive plants are being introduced at alarming rates, and our limited knowledge about their distribution is a major cause for concern. The Invaders of Texas program trains citizen scientists to detect the…

  7. Migrant and Ethnic Minority Health

    DEFF Research Database (Denmark)

    Essink-Bot, Marie-Louise; Agyemang, Charles; Stronks, Karien

    2015-01-01

    in health related to migration and ethnicity. Thereto we will first define the concepts of migration and ethnicity, briefly review the various groups of migrants and ethnic minorities in Europe, and introduce a conceptual model that specifies the link and causal pathways between ethnicity and health....... Then we use the example of ethnic inequalities in cardiovascular disease and diabetes to illustrate the conceptual model. The second issue concerns the potential contribution from the health-care system to minimize the ethnic inequalities in health. As a public health sector, we should do all we can...

  8. The Effects of Mother Participation in Relationship Education on Coparenting, Parenting, and Child Social Competence: Modeling Spillover Effects for Low-Income Minority Preschool Children.

    Science.gov (United States)

    Adler-Baeder, Francesca; Garneau, Chelsea; Vaughn, Brian; McGill, Julianne; Harcourt, Kate Taylor; Ketring, Scott; Smith, Thomas

    2016-11-14

    Although suggestions are that benefits of relationship and marriage education (RME) participation extend from the interparental relationship with parenting and child outcomes, few evaluation studies of RME test these assumptions and the relationship among changes in these areas. This quasi-experimental study focuses on a parallel process growth model that tests a spillover hypothesis of program effects and finds, in a sample of low-income minority mothers with a child attending a Head Start program, that increases in mother reports of coparenting agreement for RME participants predict decreases in their reports of punitive parenting behaviors. Although improvements in parenting behaviors did not predict increases in teacher reports of children's social competence, improvements in coparenting agreement were associated with increases in children's social competence over time. In addition, comparative tests of outcomes between parents in the program and parents in a comparison group reveal that RME program participants (n = 171) demonstrate significant improvements compared to nonparticipants (n = 143) on coparenting agreement, parenting practices, and teachers' reports of preschool children's social competence over a 1 year period. The findings are offered as a step forward in better understanding the experiences of low-resource participants in RME. Implications for future research are discussed.

  9. SEBACEOUS CYSTS MINOR SURGERY

    Directory of Open Access Journals (Sweden)

    I Gusti Ayu Agung Laksemi

    2013-12-01

    Full Text Available Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Minor surgery is small surgery or localized example cut ulcers and boils, cyst excision, and suturing. Somethings that need to be considered in the preparation of the surgery is minor tools, operating rooms and operating tables, lighting, maintenance of tools and equipment, sterilization and desinfection equipment, preparation of patients and anesthesia. In general cysts is walled chamber that consist of fluid, cells and the remaining cells. Cysts are formed not due to inflammation although then be inflamed. Lining of the cysts wall is composed of fibrous tissue and usually coated epithelial cells or endothelial. Cysts formed by dilated glands and closed channels, glands, blood vessels, lymph channels or layers of the epidermis. Contents of the cysts wall consists of the results is serum, lymph, sweat sebum, epithelial cells, the stratum corneum, and hair. /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

  10. Agent-based modeling of host-pathogen systems: The successes and challenges.

    Science.gov (United States)

    Bauer, Amy L; Beauchemin, Catherine A A; Perelson, Alan S

    2009-04-29

    Agent-based models have been employed to describe numerous processes in immunology. Simulations based on these types of models have been used to enhance our understanding of immunology and disease pathology. We review various agent-based models relevant to host-pathogen systems and discuss their contributions to our understanding of biological processes. We then point out some limitations and challenges of agent-based models and encourage efforts towards reproducibility and model validation.

  11. Sex Trafficking of Minors.

    Science.gov (United States)

    Moore, Jessica L; Kaplan, Dana M; Barron, Christine E

    2017-04-01

    Sex trafficking is an increasingly recognized global health crisis affecting every country and region in the world. Domestic minor sex trafficking is a subset of commercial sexual exploitation of children, defined as engagement of minors (<18 years of age) in sexual acts for items of value (eg, food, shelter, drugs, money) involving children victimized within US borders. These involved youth are at risk for serious immediate and long-term physical and mental health consequences. Continued efforts are needed to improve preventive efforts, identification, screening, appropriate interventions, and subsequent resource provision for victimized and high-risk youth.

  12. Autonomy and minority rights

    DEFF Research Database (Denmark)

    Barten, Ulrike

    2008-01-01

    to a specific group. The question never posed is, if there is a point and in that case at what point the group can actually talk about being autonomous. Is there a minimum in the number of special rights and procedures that has to be reached in order for the package of rights to qualify as ‘granting autonomy...... in the cultural, educational, religious and social sectors which have of course are exercised in a limited territory; however, do not threaten the state's sovereignty in the same way as independent political decisions could do. How far minority rights have the same dimensions, will be another issue. Minorities...

  13. The Effects of Educative Software, Based on the Arcs Motivation Model on Student's Academic Success and Permanence in Education

    Directory of Open Access Journals (Sweden)

    Ümmü ÇETİN

    2008-12-01

    Full Text Available In this study, education based on ARCS Motivation Model design principles and traditional education were compared in terms of student success and the continuance of learning. To this end, an educative software suitable to the design principles of ARCS Motivation Model for Microsoft Excels' "statistical functions" theme was prepared.With a pretest of the experimental and control group, the equivalence of the groups were determined. In the control group the laboratory study was performed with the traditional method and in the experimental group ,education was given with the prepared educative software. At the end of the education, a final exam to both groups and a continuance exam after completion of the education program were performed. The findings after the analysis reflect, that the performed education, based on the according to ARCS Motivation Model designed software, compared to the laboratory study with traditional methods, relatively increases the grade of academic success much significantly.

  14. Keep warm and get success: the role of postischemic temperature in the mouse middle cerebral artery occlusion model.

    Science.gov (United States)

    Wu, Li; Xu, Lili; Xu, Xiaohui; Fan, Xinying; Xie, Yi; Yang, Lian; Lan, Wenya; Zhu, Juehua; Xu, Gelin; Dai, Jianwu; Jiang, Yongjun; Liu, Xinfeng

    2014-02-01

    Intraluminal suture middle cerebral artery occlusion (MCAO) model is the most frequently used model for ischemic stroke. However, the success rate of this model is variable among different research studies. This study aimed to investigate the effect of postischemic temperature on the success rate. A total of 100 C57BL/6 mice were randomized into two groups: control group (n=50), body temperature was allowed to self-regulate after MCAO; temperature-controlled group (n=50), mice were kept warm in an incubator for 12 h after MCAO. The body temperature of animals was measured before, during, and for 12 h after MCAO. Neurological deficits and infarct volumes were measured at 24 h after MCAO. There was significant difference (Pmodels, infarct volume was significantly (Pmodel. Copyright © 2013 Elsevier Inc. All rights reserved.

  15. 77 FR 72679 - Minority Enterprise Development Week, 2012

    Science.gov (United States)

    2012-12-05

    ... entrepreneurs across our country to start the kinds of businesses that make up the backbone of our economy. With... the continued growth and success of minority enterprises is essential to our economic recovery, my... economy and put people back to work. As we celebrate the 30th anniversary of Minority...

  16. 76 FR 60351 - Minority Enterprise Development Week, 2011

    Science.gov (United States)

    2011-09-28

    ..., including minority-owned enterprises, are where most new jobs begin. To recover from this economic crisis... the world has ever seen. These businesses create jobs and support our communities. As a Nation, we... Development Week, we honor minority enterprises as vital to our economic success, and recommit to...

  17. Bilingual Education for Majority and Minority Language Children.

    Science.gov (United States)

    Swain, Merrill

    1981-01-01

    The fact that early immersion in a second language has led to bilingualism and academic success among majority language children has been used as an argument against mother tongue instruction for minority language children. However, for minority language children, immersion in a second language has often led to language loss and academic failure.…

  18. An Evaluation of the Simulated Minority Admissions Exercise.

    Science.gov (United States)

    Sedlacek, William E.; Prieto, Dario O.

    1982-01-01

    The Simulated Minority Admissions Exercise, an educational technique that simulates a typical medical school admissions situation, is described. The main objective is to help medical schools to select potentially successful minority applicants and to improve their retention by ensuring that they enter medical school under positive circumstances.…

  19. Bilingual Education for Majority and Minority Language Children.

    Science.gov (United States)

    Swain, Merrill

    1981-01-01

    The fact that early immersion in a second language has led to bilingualism and academic success among majority language children has been used as an argument against mother tongue instruction for minority language children. However, for minority language children, immersion in a second language has often led to language loss and academic failure.…

  20. The highly successful safe remediation of the Fernald waste pits undertaken under the privatization model

    Energy Technology Data Exchange (ETDEWEB)

    Cherry, Mark; Lojek, Dave; Murphy, Con

    2003-02-23

    Remediation of eight waste pits at the Department of Energy (DOE) Fernald site, located northwest of Cincinnati, Ohio, involves excavating approximately one million tonnes in-situ of low-level waste which were placed in pits during Fernald's production era. This unique project, one of the largest in the history of CERCLA/Superfund, includes uranium and thorium contaminated waste, soils and sludges. These wet soils and sludges are thermally dried in a processing facility to meet Department of Transportation (DOT) transportation and disposal facility waste acceptance criteria, loaded into railcars and shipped to the Envirocare waste disposal facility at Clive, Utah. This project is now approximately 60% complete with more than 415,000 tonnes (460,000 tons) of waste material safely shipped in 74 unit trains to Envirocare. Work is scheduled to be completed in early 2005. Success to date demonstrates that a major DOE site remediation project can be safely and successfully executed in partnership with private industry, utilizing proven commercial best practices, existing site labor resources and support of local stakeholders. In 1997 under the DOE's privatization initiative, Fluor Fernald, Inc. (Fluor Fernald) solicited the services of the remediation industry to design, engineer, procure, construct, own and operate a facility that would undertake the remediation of the waste pits. The resulting procurement was awarded to IT Corporation, currently Shaw Environmental and Infrastructure, Inc. (Shaw). The contractor was required to finance the procurement and construction of its facilities and infrastructure. The contract was performance-based and payment would be made on the successful loadout of the waste from the facility on a per-ton basis meeting the Envirocare waste acceptance criteria. This paper details the performance to date, the challenges encountered, and the seamless partnering between DOE, the Environmental Protection Agency (EPA), Fluor Fernald

  1. Successful virtual screening for a submicromolar antagonist of the neurokinin-1 receptor based on a ligand-supported homology model.

    Science.gov (United States)

    Evers, Andreas; Klebe, Gerhard

    2004-10-21

    The neurokinin-1 (NK1) receptor belongs to the family of G-protein-coupled receptors (GPCRs), which represents one of the most relevant target families in small-molecule drug design. In this paper, we describe a homology modeling of the NK1 receptor based on the high-resolution X-ray structure of rhodopsin and the successful virtual screening based on this protein model. The NK1 receptor model has been generated using our new MOBILE (modeling binding sites including ligand information explicitly) approach. Starting with preliminary homology models, it generates improved models of the protein binding pocket together with bound ligands. Ligand information is used as an integral part in the homology modeling process. For the construction of the NK1 receptor, antagonist CP-96345 was used to restrain the modeling. The quality of the obtained model was validated by probing its ability to accommodate additional known NK1 antagonists from structurally diverse classes. On the basis of the generated model and on the analysis of known NK1 antagonists, a pharmacophore model was deduced, which subsequently guided the 2D and 3D database search with UNITY. As a following step, the remaining hits were docked into the modeled binding pocket of the NK1 receptor. Finally, seven compounds were selected for biochemical testing, from which one showed affinity in the submicromolar range. Our results suggest that ligand-supported homology models of GPCRs may be used as effective platforms for structure-based drug design.

  2. Implementing a new model for on-the-job training: critical success factors.

    NARCIS (Netherlands)

    van Zolingen, S.J.; Streumer, Jan; van der Klink, Marcel; de Jong, Rolinda

    2000-01-01

    Post Offices Inc. in The Netherlands has developed and implemented a new instruction model for the training of desk employees. The quality of the new instruction model was assessed by means of the evaluation model of Jacobs and Jones for on-the-job training. It is concluded that the implementation

  3. Impulsivity, perceived self-regulatory success in dieting, and body mass in children and adolescents: A moderated mediation model.

    Science.gov (United States)

    Meule, Adrian; Hofmann, Johannes; Weghuber, Daniel; Blechert, Jens

    2016-12-01

    Impulsivity has been suggested to contribute to overeating and obesity. However, findings are inconsistent and it appears that only specific facets of impulsivity are related to eating-related variables and to body mass. In the current study, relationships between self-reported impulsivity, perceived self-regulatory success in dieting, and objectively measured body mass were examined in N = 122 children and adolescents. Scores on attentional and motor impulsivity interactively predicted perceived self-regulatory success in dieting, but not body mass: Higher attentional impulsivity was associated with lower perceived self-regulatory success at high levels of motor impulsivity, but not at low levels of motor impulsivity. A moderated mediation model revealed an indirect effect of attentional and motor impulsivity on body mass, which was mediated by perceived self-regulatory success in dieting. Thus, results show that only specific facets of impulsivity are relevant in eating- and weight-regulation and interact with each other in the prediction of these variables. These facets of impulsivity, however, are not directly related to higher body mass, but indirectly via lower success in eating-related self-regulation in children and adolescents.

  4. RELEASE OF MINORS

    Directory of Open Access Journals (Sweden)

    Edgar Laurenţiu DUMBRAVĂ

    2015-07-01

    Full Text Available The sanctioning of minors provided in a whole new Criminal Code is kinder to those applying to one category of criminal penalties, namely educational measures. This change occurred after finding the need to recover and straightening of juvenile offenders with their age-specific means and without coming into contact with major people that could adversely affect behavior.

  5. PATTERNS OF MINORITY RELATIONS.

    Science.gov (United States)

    DUSTER, TROY S.; MACK, RAYMOND W.

    ACCORDING TO SOCIAL SCIENTISTS AND BIOLOGISTS, ALL RACES ARE EQUAL IN ABILITY, NEVERTHELESS, RACIAL DISCRIMINATION EXISTS WHEN THE CULTURE OF A SOCIETY ALLOWS PEOPLE TO EXPRESS THEIR AGRESSIONS IN A SOCIALLY ACCEPTABLE WAY. ONE WAY TO DEFINE GROUP BOUNDARIES IS TO SINGLE OUT A CHARACTERISTIC OF A MINORITY GROUP AND TO INSTITUTIONALIZE THIS…

  6. Minority Language Teaching

    NARCIS (Netherlands)

    Monique Turkenburg

    2001-01-01

    Original title: Onderwijs in alochtone levende talen. At the request of the Dutch Ministry of Education, Culture and Science, an exploratory study was carried out of minority Language teaching for primary school pupils. This exploratory study in seven municipalities not only shows the way in which

  7. Critical analysis of the successes and failures of homology models of G protein-coupled receptors.

    Science.gov (United States)

    Bhattacharya, Supriyo; Lam, Alfonso Ramon; Li, Hubert; Balaraman, Gouthaman; Niesen, Michiel Jacobus Maria; Vaidehi, Nagarajan

    2013-05-01

    We present a critical assessment of the performance of our homology model refinement method for G protein-coupled receptors (GPCRs), called LITICon that led to top ranking structures in a recent structure prediction assessment GPCRDOCK2010. GPCRs form the largest class of drug targets for which only a few crystal structures are currently available. Therefore, accurate homology models are essential for drug design in these receptors. We submitted five models each for human chemokine CXCR4 (bound to small molecule IT1t and peptide CVX15) and dopamine D3DR (bound to small molecule eticlopride) before the crystal structures were published. Our models in both CXCR4/IT1t and D3/eticlopride assessments were ranked first and second, respectively, by ligand RMSD to the crystal structures. For both receptors, we developed two types of protein models: homology models based on known GPCR crystal structures, and ab initio models based on the prediction method MembStruk. The homology-based models compared better to the crystal structures than the ab initio models. However, a robust refinement procedure for obtaining high accuracy structures is needed. We demonstrate that optimization of the helical tilt, rotation, and translation is vital for GPCR homology model refinement. As a proof of concept, our in-house refinement program LITiCon captured the distinct orientation of TM2 in CXCR4, which differs from that of adrenoreceptors. These findings would be critical for refining GPCR homology models in future. Copyright © 2012 Wiley Periodicals, Inc.

  8. Developing a Mathematical Model for Scheduling and Determining Success Probability of Research Projects Considering Complex-Fuzzy Networks

    Directory of Open Access Journals (Sweden)

    Gholamreza Norouzi

    2015-01-01

    Full Text Available In project management context, time management is one of the most important factors affecting project success. This paper proposes a new method to solve research project scheduling problems (RPSP containing Fuzzy Graphical Evaluation and Review Technique (FGERT networks. Through the deliverables of this method, a proper estimation of project completion time (PCT and success probability can be achieved. So algorithms were developed to cover all features of the problem based on three main parameters “duration, occurrence probability, and success probability.” These developed algorithms were known as PR-FGERT (Parallel and Reversible-Fuzzy GERT networks. The main provided framework includes simplifying the network of project and taking regular steps to determine PCT and success probability. Simplifications include (1 equivalent making of parallel and series branches in fuzzy network considering the concepts of probabilistic nodes, (2 equivalent making of delay or reversible-to-itself branches and impact of changing the parameters of time and probability based on removing related branches, (3 equivalent making of simple and complex loops, and (4 an algorithm that was provided to resolve no-loop fuzzy network, after equivalent making. Finally, the performance of models was compared with existing methods. The results showed proper and real performance of models in comparison with existing methods.

  9. Heavy Vehicles on Minor Highway Bridges

    DEFF Research Database (Denmark)

    Kirkegaard, Poul Henning; Nielsen, Søren R. K.; Enevoldsen, I.

    the results obtained using the numerical models given in details in "Heavy Vehicles on Minor Highway Bridges : dynamic modelling of vehicles and bridges". The models are established using a ordinary vehicle which consists of a 48 t Scania with a 3 axle tractor and a 3 axle trailer, joined in a flexible hinge...

  10. Sexual minorities seeking services.

    Science.gov (United States)

    Rogers, Tracey L; Emanuel, Kristen; Bradford, Judith

    2003-01-01

    SUMMARY Understanding the mental health needs of lesbian and bisexual (sexual minority) women is an integral part of designing and providing appropriate mental health services and treatment for them. In an effort to understand the mental health needs of sexual minority women who seek community treatment, a chart review was conducted of the 223 lesbian and bisexual women who presented for services between July 1, 1997 and December 31, 2000 at Fenway Community Health in Boston, MA. Data are based on clients' self-reports and clinician assessments of clients' presenting problem, relevant developmental history, prior mental health and substance abuse treatment, current reports of emotional/psychological symptoms, and areas of impaired functioning. Although substance abuse and suicidal ideation were commonly reported problems, other concerns were more frequently reported. High percentages of lesbians and bisexual women reported relationship concerns and lack of adequate social networks; rates of depression and anxiety based on clinicians' assessments were also high. Overall, lesbians and bisexual women did not differ in the issues they brought to treatment or level or types of impairment. Compared with previous community survey samples, however, study participants appeared to be healthier than general, non-clinical samples of self-identified lesbians, possibly reflecting the special characteristics of sexual minority women who seek treatment in specialized community sites such as the Fenway. Although patients who come to these sites may not represent the more general population of sexual minority women, community health centers known to serve lesbian, gay, bisexual and transgender (LGBT) individuals may be fruitful access points for studying the mental health status and treatment needs of sexual minority women.

  11. National Culture and Business Model Change - A Framework for Successful Expansions

    DEFF Research Database (Denmark)

    Stenskov, Lea Houmark; Lueg, Rainer

    2014-01-01

    This paper proposes a conceptual framework to analyse how a company’s business model needs to be adjusted if it is expanded into another cultural context. For this, we use the example of changes in the business model of a Danish ITcompany opening a new office in the U.S. Using a single case study......, we integrate the concepts of business models (Osterwalder and Pigneur, 2005) and national culture (Hofstede, 1980). Our findings explain why and how adjustments in the business model are necessary regarding the company’s communication, team composition, and customer involvement in projects....... As to implications, we construct a matrix combining business models and national culture that other multinational companies can use to achieve better understanding of their business model in different national contexts....

  12. Modeling the Relations Between Flow Regime Components, Species Traits, and Spawning Success of Fishes in Warmwater Streams

    Science.gov (United States)

    Craven, Scott W.; Peterson, James T.; Freeman, Mary C.; Kwak, Thomas J.; Irwin, Elise

    2010-08-01

    Modifications to stream hydrologic regimes can have a profound influence on the dynamics of their fish populations. Using hierarchical linear models, we examined the relations between flow regime and young-of-year fish density using fish sampling and discharge data from three different warmwater streams in Illinois, Alabama, and Georgia. We used an information theoretic approach to evaluate the relative support for models describing hypothesized influences of five flow regime components representing: short-term high and low flows; short-term flow stability; and long-term mean flows and flow stability on fish reproductive success during fish spawning and rearing periods. We also evaluated the influence of ten fish species traits on fish reproductive success. Species traits included spawning duration, reproductive strategy, egg incubation rate, swimming locomotion morphology, general habitat preference, and food habits. Model selection results indicated that young-of-year fish density was positively related to short-term high flows during the spawning period and negatively related to flow variability during the rearing period. However, the effect of the flow regime components varied substantially among species, but was related to species traits. The effect of short-term high flows on the reproductive success was lower for species that broadcast their eggs during spawning. Species with cruiser swimming locomotion morphologies (e.g., Micropterus) also were more vulnerable to variable flows during the rearing period. Our models provide insight into the conditions and timing of flows that influence the reproductive success of warmwater stream fishes and may guide decisions related to stream regulation and management.

  13. A Comparative Study of Successful Central Nervous System Drugs Using Molecular Modeling

    Science.gov (United States)

    Kim, Hyosub; Sulaimon, Segun; Menezes, Sandra; Son, Anne; Menezes, Warren J. C.

    2011-01-01

    Molecular modeling is a powerful tool used for three-dimensional visualization and for exploring electrostatic forces involved in drug transport. This tool enhances student understanding of structure-property relationships, as well as actively engaging them in class. Molecular modeling of several central nervous system (CNS) drugs is used to…

  14. A Comparative Study of Successful Central Nervous System Drugs Using Molecular Modeling

    Science.gov (United States)

    Kim, Hyosub; Sulaimon, Segun; Menezes, Sandra; Son, Anne; Menezes, Warren J. C.

    2011-01-01

    Molecular modeling is a powerful tool used for three-dimensional visualization and for exploring electrostatic forces involved in drug transport. This tool enhances student understanding of structure-property relationships, as well as actively engaging them in class. Molecular modeling of several central nervous system (CNS) drugs is used to…

  15. The Multiple Menu Model: A Successful Marriage for Integrating Content and Process.

    Science.gov (United States)

    Renzulli, Joseph S.

    1997-01-01

    The Multiple Menu Model is a practical set of planning guides that teachers can use to design indepth curriculum units. This model differs from traditional approaches by balancing content and process, involving students as inquirers, and exploring knowledge's structure and interconnectedness. Components include menus for knowledge, instructional…

  16. Sales Training for Army Recruiter Success: Modeling the Sales Strategies and Skills of Excellent Recruiters

    Science.gov (United States)

    1987-11-01

    strategies used by excellent Army recruiters. Neurolinguistic programming (NLP) was used as the protocol for modeling performance and acquiring...Behavioral and Social Sciences 3001 Eisenhower Avenue, Alexandria, VA 22333-5600 10. PROGRAM ELEMENT. PROJECT. TASK ARE* 4 WORK UNIT...Modeling ’Expert knowledge,, Neurolinguistics Knowledge engineering; Recruiting Sales, &’ Sales cycle Sales skills Sales strategies 20

  17. Successful therapies for Alzheimer’s disease: Why so many in animal models and none in humans?

    Directory of Open Access Journals (Sweden)

    Rafael eFranco

    2014-06-01

    Full Text Available Peering into the field of Alzheimer's disease (AD the outsider realizes that many of the therapeutic strategies tested (in animal models have been successful. One also may notice that there is a deficit in translational research, i.e. to take a successful drug in mice and translate it to the patient. Efforts are still focused on novel projects to expand the therapeutic arsenal to cure mice. Scientific reasons behind so many successful strategies are not obvious. This article aims to review the current approaches to combat AD, and to open a debate on common mechanisms of cognitive enhancement and neuroprotection. In short, either the rodent models are not good and should be discontinued, or we should extract only the most useful information from those models. An example of a question that may be debated for the advancement in AD therapy is: In addition to reducing amyloid and tau pathologies, would it be necessary to boost synaptic strength and cognition? The debate would provide helpful information that could turn around the current negative output in generating effective drugs for patients. Furthermore, discovery of biomarkers in human body fluids, and a clear distinction between cognitive enhancers and disease modifying strategies, should be instrumental for advancing in anti-AD drug discovery.

  18. Marital Success from the Perspective of Kozielecki’s Transgression Model

    Directory of Open Access Journals (Sweden)

    Dakowicz Andrzej

    2015-03-01

    Full Text Available Spouses exhibit two kinds of behaviours: protective and transgressive. Protective acts are those aiming to overcome current problems, leading to preserving some balance. Transgressive acts are deliberately overstepping everyday marital reality and doing new things in new ways. They lead to changing the relation with the hope of improving it, but also create the risk of deterioration. The more transgressive behaviours spouses exhibit, the more chances they have to get to know each other and experience the joy of being part of a union. Transgressive tendencies stem from a network personality structure and consist of five psychons: cognitive, instrumental, motivational, emotional, and personal. The success of a marriage is the effect of a specific form of transgressive behaviours in marriage exhibited by both spouses, which is recognizing difficulties as they appear, finding their sources, and taking steps together to overcome them.

  19. THE IMPACT OF ARCS MOTIVATION MODEL ON MOTIVATION AND SUCCESS LEVEL OF PRIMARY 4TH GRADE STUDENTS IN SOCIAL STUDIES

    OpenAIRE

    Mustafa TAHİROĞLU

    2015-01-01

    The purpose of this study is to detect the impact of a teaching-learning process, structured taking the components of ARCS Motivation Model into consideration, on the motivation and success level of primary grade 4 students in social studies. In scope of the study, grouped pretest-posttest testing model is used. The experimental group consists of 32, and the control group 30 students. In order to collect research data, the “Grade 4 and 5 Social Studies Motivation Scale” and “Social Studies Ac...

  20. Modeling and Simulation for Enterprise Decision-Making: Successful Projects and Approaches

    DEFF Research Database (Denmark)

    Ramadan, Noha; Ajami, Racha; Mohamed, Nader

    2015-01-01

    Decision-making in enterprises holds different possibilities for profits and risks. Due to the complexity of decision making processes, modeling and simulation tools are being used to facilitate them and minimize the risk of making wrong decisions in the various business process phases....... In this paper, we highlight the role of modeling and simulation in enhancing decision-making processes in enterprises. In addition, we show some techniques that helped enterprises in reaching effective and efficient decisions by adopting modeling and simulation tools....

  1. Canadian Model of Military Leadership as a Successful Mixture of Civilian and Military Experiences

    Directory of Open Access Journals (Sweden)

    Piotr Malinowski

    2015-06-01

    Full Text Available The origins of military leadership are rooted in ancient times and its embodiment are great chieftains and commanders. However, since the moment when in organisation and management sciences the civil theories of leadership started to emerge, the military forces have incorporated their solutions to structure the assumptions of new, coherent and effective models of military leadership. A good example of such solutions is the Canadian model of military leadership, competently merging the civil theories with experience and needs of the military environment. This solution may be a perfect example of effective application of leadership theory to modify the existing national model of military leadership and construct a more efficient one.

  2. Modeling and Simulation for Enterprise Decision-Making: Successful Projects and Approaches

    DEFF Research Database (Denmark)

    Ramadan, Noha; Ajami, Racha; Mohamed, Nader

    Decision-making in enterprises holds different possibilities for profits and risks. Due to the complexity of decision making processes, modeling and simulation tools are being used to facilitate them and minimize the risk of making wrong decisions in the various business process phases....... In this paper, we highlight the role of modeling and simulation in enhancing decision-making processes in enterprises. In addition, we show some techniques that helped enterprises in reaching effective and efficient decisions by adopting modeling and simulation tools....

  3. Software Reuse Success Strategy Model: An Empirical Study of Factors Involved in the Success of Software Reuse in Information System Development

    Science.gov (United States)

    Tran, Kiet T.

    2012-01-01

    This study examined the relationship between information technology (IT) governance and software reuse success. Software reuse has been mostly an IT problem but rarely a business one. Studies in software reuse are abundant; however, to date, none has a deep appreciation of IT governance. This study demonstrated that IT governance had a positive…

  4. Software Reuse Success Strategy Model: An Empirical Study of Factors Involved in the Success of Software Reuse in Information System Development

    Science.gov (United States)

    Tran, Kiet T.

    2012-01-01

    This study examined the relationship between information technology (IT) governance and software reuse success. Software reuse has been mostly an IT problem but rarely a business one. Studies in software reuse are abundant; however, to date, none has a deep appreciation of IT governance. This study demonstrated that IT governance had a positive…

  5. Why technical trading may be successful? A lesson from the agent-based modeling

    Science.gov (United States)

    Schmidt, Anatoly B.

    2002-01-01

    It is shown using a simple agent-based market dynamics model that if the technical traders are able to affect the market liquidity, their concerted actions can move the market price in the direction favorable to their strategy.

  6. Modelling biogeochemical-stratigraphic dynamics of clinoform successions over geological timescales

    DEFF Research Database (Denmark)

    Legarth, Jens Jakob Fosselius; Bjerrum, Christian J.

    An understanding of the processes-dynamics governing the development of submarine fine grained clinoforms relies often on correlation of proxies (grain-size trends, spectral gamma, microfossils, TOC, d13C etc.) to more proximal settings where relative sea-level changes are more easily detected...... are investigated with our novel dynamic biogeochemical-stratigraphic model which explicitly calculates sediment and biogeochemical tracer erosion and deposition over multi-kilo-years. In the model organic and uranium enrichment in the distal clinoform develops as a transgressive nature. As a result part...... the dynamic biogeochemical-stratigraphic models to our global carbon-nutrient cycle model will permit investigation of how marine productivity indicators and d13C can be use to refine the interpretations of submarine clinoform development and as correlation tools....

  7. Teaching minority children hygiene

    DEFF Research Database (Denmark)

    Rheinländer, Thilde; Samuelsen, Helle; Dalsgaard, Anders

    2015-01-01

    infrastructures were important barriers for the implementation of safe home child hygiene. Furthermore, the everyday life of highland villages, with parents working away from the households resulted in little daily adult supervision of safe child hygiene practices. While kindergartens were identified...... as potentially important institutions for improving child hygiene education, essential and well-functioning hygiene infrastructures were lacking. Also, hygiene teaching relied on theoretical and non-practice-based learning styles, which did not facilitate hygiene behaviour change in small children. Minority...... a strong practice-based teaching approach in daily work and in teacher's education. To support highland minority children in particular, teaching styles must take local living conditions and caregiver structures into account and teach in local languages. Creating stronger links between home...

  8. Application of Innovative Models in Teaching Methods For Nature and Society Studies and Students' Success

    OpenAIRE

    Stavreva Veselinovska, Snezana; Koleva Gudeva, Liljana

    2011-01-01

    This paper deals with the issue of shaping and applying innovative models in the teaching subject Teaching methods for nature and society studies in the conditions existing in our schools. Most teachers show the need for a modern methodical transformation of program contents for teaching nature and society studies and the display of models of educational organization of classes. Therefore the theoretical part of the work is directed toward consideration of innovative approaches in Teaching me...

  9. Stimulating seedling growth in early stages of secondary forest succession: a modeling approach to guide tree liberation.

    Directory of Open Access Journals (Sweden)

    Marijke van Kuijk

    2014-07-01

    Full Text Available Excessive growth of non-woody plants and shrubs on degraded lands can strongly hamper tree growth and thus secondary forest succession. A common method to accelerate succession, called liberation, involves opening up the vegetation canopy around young target trees. This can increase growth of target trees by reducing competition for light with neighboring plants. However, liberation has not always the desired effect, likely due to differences in light requirement between tree species. Here we present a 3D-model, which calculates photosynthetic rate of individual trees in a vegetation stand. It enables us to examine how stature, crown structure and physiological traits of target trees and characteristics of the surrounding vegetation together determine effects of light on tree growth. The model was applied to a liberation experiment conducted with three pioneer species in a young secondary forest in Vietnam. Species responded differently to the treatment depending on their height, crown structure and their shade-tolerance level. Model simulations revealed practical thresholds over which the tree growth response is heavily influenced by the height and density of surrounding vegetation and gap radius. There were strong correlations between calculated photosynthetic rates and observed growth: the model was well able to predict growth of trees in young forests and the effects of liberation there upon. Thus our model serves as a useful tool to analyze light competition between young trees and surrounding vegetation and may help assess the potential effect of tree liberation.

  10. A Group of Asthma Patients\\\\\\' Treatment Related Thoughts Based on Health Belief Model and Perception of Medication Success

    Directory of Open Access Journals (Sweden)

    Mesut Cimen

    2012-02-01

    Full Text Available Purpose: This study is a descriptive study which aims to determine the attitude and perceptions of asthma patients about their health and their opinion regarding the success of treatment. Method: The study is carried out without any sampling. The participants are 74 patients who were admitted in a public pulmonary disease clinic between April and June 2010. A revised version of Health Belief Model scale for asthma treatment and another scale, which was developed to determine the opinion and observations of patients regarding the success of treatment, are used for data collection. In addition to descriptive statistics, regression analysis, Mann-Whitney U and Kruskal Wallis tests are used in the data analysis. Findings: The mean score of attitudes and perceptions of asthma patients, which is defined with the Health Belief Model and which can affect their responsiveness to treatment, is found out 3,37(±0,38 and the attitude and perceptions of patients are positive. The mean value for success treatment is 2,35(±0,49. Since the treatment is deemed to be more successful as it gets closer to 1 hence it can be said that the opinion of asthma patients regarding the success of treatment is positive. In the study, it is found out that the participants have a high admission rate to hospitals and that there is no significant difference for socio-demographic characteristics in the positive attitude development and in their belief in the efficiency of the treatment that they are receiving, of which both are components of health belief model concept. The findings from regression analysis indicate that the duration of the asthma sickness and the number of people living in the household not only affect the perceptions and attitudes of patients that are investigated by health belief model, but also the effectiveness of the treatment and the number of admissions to the Emergency Room in the last 6 months. Conclusion: In order to prevent long-term complications

  11. A new model to simulate climate-change impacts on forest succession for local land management.

    Science.gov (United States)

    Yospin, Gabriel I; Bridgham, Scott D; Neilson, Ronald P; Bolte, John P; Bachelet, Dominique M; Gould, Peter J; Harrington, Constance A; Kertis, Jane A; Evers, Cody; Johnson, Bart R

    2015-01-01

    We developed a new climate-sensitive vegetation state-and-transition simulation model (CV-STSM) to simulate future vegetation at a fine spatial grain commensurate with the scales of human land-use decisions, and under the joint influences of changing climate, site productivity, and disturbance. CV-STSM integrates outputs from four different modeling systems. Successional changes in tree species composition and stand structure were represented as transition probabilities and organized into a state-and-transition simulation model. States were characterized based on assessments of both current vegetation and of projected future vegetation from a dynamic global vegetation model (DGVM). State definitions included sufficient detail to support the integration of CV-STSM with an agent-based model of land-use decisions and a mechanistic model of fire behavior and spread. Transition probabilities were parameterized using output from a stand biometric model run across a wide range of site productivities. Biogeographic and biogeochemical projections from the DGVM were used to adjust the transition probabilities to account for the impacts of climate change on site productivity and potential vegetation type. We conducted experimental simulations in the Willamette Valley, Oregon, USA. Our simulation landscape incorporated detailed new assessments of critically imperiled Oregon white oak (Quercus garryana) savanna and prairie habitats among the suite of existing and future vegetation types. The experimental design fully crossed four future climate scenarios with three disturbance scenarios. CV-STSM showed strong interactions between climate and disturbance scenarios. All disturbance scenarios increased the abundance of oak savanna habitat, but an interaction between the most intense disturbance and climate-change scenarios also increased the abundance of subtropical tree species. Even so, subtropical tree species were far less abundant at the end of simulations in CV-STSM than in

  12. Time series analysis for minority game simulations of financial markets

    Science.gov (United States)

    Ferreira, Fernando F.; Francisco, Gerson; Machado, Birajara S.; Muruganandam, Paulsamy

    2003-04-01

    The minority game (MG) model introduced recently provides promising insights into the understanding of the evolution of prices, indices and rates in the financial markets. In this paper we perform a time series analysis of the model employing tools from statistics, dynamical systems theory and stochastic processes. Using benchmark systems and a financial index for comparison, several conclusions are obtained about the generating mechanism for this kind of evolution. The motion is deterministic, driven by occasional random external perturbation. When the interval between two successive perturbations is sufficiently large, one can find low dimensional chaos in this regime. However, the full motion of the MG model is found to be similar to that of the first differences of the SP500 index: stochastic, nonlinear and (unit root) stationary.

  13. Succession change of microorganisms on plant waste decomposition in simulation modelling field experiment

    Science.gov (United States)

    Vinogradova, Julia; Perminova, Evgenia; Khabibullina, Fluza; Kovaleva, Vera; Lapteva, Elena

    2016-04-01

    Plant waste decomposition processes are closely associated with living activity of soil microbiota in aboveground ecosystems. Functional activity of microorganisms and soil invertebrates determines plant material transformation rate whereby changes in plant material chemical composition during destruction - succession change of soil biota. The purpose of the work was revealing the mechanism of microorganisms succession change during plant waste decomposition in middle-taiga green-moss spruce forests and coniferous-deciduous secondary stands formed after earlier cut bilberry spruce forests. The study materials were undisturbed bilberry spruce forest (Sample Plot 1 - SP1) and coniferous-deciduous secondary stands which were formed after tree cutting activities of 2001-2002 (SP2) and 1969 and 1970 (SP3). Plant material decomposition intensity was determined in microcosms isolated into kapron bags with cell size of 1 mm. At SP1 and SP2, test material was living mosses and at SP3 - fallen birch and aspen leaves. Every test material was exposed for 2 years. Destruction rate was calculated as a weight loss for a particular time period. Composition of micromycetes which participated in plant material decomposition was assessed by the method of inoculation of soil extract to Getchinson's medium and acidified Czapek's medium (pH=4.5). Microbe number and biomass was analyzed by the method of luminescent microscopy. Chemical analysis of plant material was done in the certified Ecoanalytical Laboratory of the Institute of Biology Komi SC UrD RAS. Finally, plant material destruction intensity was similar for study plots and comprised 40-44 % weight loss for 2 years. The strongest differences in plant material decomposition rate between undisturbed spruce forests and secondary after-cut stands were observed at first stages of destruction process. In the first exposition year, mineralizing processes were most active in undisturbed spruce forest. Decomposition rate in cuts at that

  14. Successful micronucleus testing with the EPI/001 3D reconstructed epidermis model: preliminary findings.

    Science.gov (United States)

    Andres, E; Molinari, J; Remoué, N; Sá-Rocha, V M; Barrichello, C; Hurtado, S P

    2012-03-18

    Currently, the cosmetics industry relies on the results of in vitro genotoxicity tests to assess the safety of chemicals. Although the cytokinesis-block micronucleus (CBMN) test for the detection of cells that have divided once is routinely used and currently accepted by regulatory agencies, it has some limitations. Reconstituted human epidermis (RHE) is widely used in safety assessments because its physiological properties resemble those of the skin, and because it allows testing of substances such as hydrophobic compounds. Thus, the micronucleus test is being adapted for application in RHE-reconstructed tissues. Here we investigated whether two different reconstructed epidermis models (EPI/001 from Straticell, and RHE/S/17 from Skinethic) are suitable for application of the micronucleus test. We found that acetone does not modify micronucleus frequency, cell viability, and model structure, compared with non-treated RHE. Treatment of the EPI/001 model with mitomycin C and vinblastine resulted in a dose-dependent increase of micronucleus frequency as well as a decrease of tissue viability and of binucleated cell rate, while no changes of the epidermal structure were observed. The number of binucleated cells obtained with the RHE/S/17 model was too small to permit micronucleus testing. These results indicate that the proliferative rate of the tissue used is a critical parameter in performing the micronucleus test on a 3D model.

  15. Baltes' SOC model of successful ageing as a potential framework for stroke rehabilitation.

    Science.gov (United States)

    Donnellan, C; O'Neill, D

    2014-01-01

    The aim of this paper is to explore approaches used to address some stroke rehabilitation interventions and to examine the potential use of one of the life-span theories called the Baltes' model of selective optimisation with compensation (SOC) as a potential framework. Some of the key considerations for a stroke rehabilitation intervention framework are highlighted including accommodating for the life management changes post stroke, alterations in self-regulation, acknowledge losses and focusing on a person-centred approach for transition from acute rehabilitation to the home or community setting. The Baltes' SOC model is then described in terms of these considerations for a stroke rehabilitation intervention framework. The Baltes' SOC model may offer further insights, including ageing considerations, for stroke rehabilitation approaches and interventions. It has potential to facilitate some of the necessary complexities of adjustment required in stroke rehabilitation. However, further development in terms of empirical support is required for using the model as a framework to structure stroke rehabilitation intervention. Implications for Rehabilitation There is a scarcity of theoretical frameworks that can facilitate and be inclusive for all the necessary complexities of adjustment, required in stroke rehabilitation. In addition to motor recovery post stroke, rehabilitation intervention frameworks should be goal orientated; address self-regulatory processes; be person-centred and use a common language for goal planning, setting and attainment. The Baltes' SOC model is one such framework that may address some of the considerations for stroke rehabilitation, including motor recovery and other life management aspects.

  16. Minority Language Protection in Italy. Linguistic minorities and the Media

    NARCIS (Netherlands)

    Sierp, Aline

    2008-01-01

    This article deals with the Italian case of minority language protection in the media. After providing a general introduction to the development of the protection of minority languages in Europe in general and of minority language broadcast media in Italy in particular, the article focuses on the ro

  17. Partnerships for success: A collaborative support model to enhance the first year student experience

    Directory of Open Access Journals (Sweden)

    Johanna Einfalt

    2013-04-01

    Full Text Available Recent discourse about engaging first year students calls for more collaboration in terms of adopting a holistic approach to course delivery and support. This paper discusses a collaborative support model operating at a regional Australian university since 2008. In particular, it describes a collaborative support initiative emerging from this model that is based on providing an informal consultative space where students can drop-in and gain assessment support for research, writing and content. A focus group, online surveys and interviews with co-ordinators were conducted to evaluate the impact of this initiative. Findings suggest that this collaborative support model impacts on the first year student experience by: raising awareness about academic skills and the processes for researching and writing; promoting peer learning opportunities; building confidence and providing suitable support for a diverse range of students.

  18. A Generic Quality Assurance Model (GQAM) for successful e-health implementation in rural hospitals in South Africa.

    Science.gov (United States)

    Ruxwana, Nkqubela; Herselman, Marlien; Pottas, Dalenca

    2014-01-01

    Although e-health can potentially facilitate the management of scarce resources and improve the quality of healthcare services, implementation of e-health programs continues to fail or not fulfil expectations. A key contributor to the failure of e-health implementation in rural hospitals is poor quality management of projects. Based on a survey 35 participants from five rural hospitals in the Eastern Cape Province of South Africa, and using a qualitative case study research methodology, this article attempted to answer the question: does the adoption of quality assurance (QA) models add value and help to ensure success of information technology projects, especially in rural health settings? The study identified several weaknesses in the application of QA in these hospitals; however, findings also showed that the QA methods used, in spite of not being formally applied in a standardised manner, did nonetheless contribute to the success of some projects. The authors outline a generic quality assurance model (GQAM), developed to enhance the potential for successful acquisition of e-health solutions in rural hospitals, in order to improve the quality of care and service delivery in these hospitals.

  19. Breeding success of a marine central place forager in the context of climate change: A modeling approach.

    Science.gov (United States)

    Massardier-Galatà, Lauriane; Morinay, Jennifer; Bailleul, Frédéric; Wajnberg, Eric; Guinet, Christophe; Coquillard, Patrick

    2017-01-01

    In response to climate warming, a southward shift in productive frontal systems serving as the main foraging sites for many top predator species is likely to occur in Subantarctic areas. Central place foragers, such as seabirds and pinnipeds, are thus likely to cope with an increase in the distance between foraging locations and their land-based breeding colonies. Understanding how central place foragers should modify their foraging behavior in response to changes in prey accessibility appears crucial. A spatially explicit individual-based simulation model (Marine Central Place Forager Simulator (MarCPFS)), including bio-energetic components, was built to evaluate effects of possible changes in prey resources accessibility on individual performances and breeding success. The study was calibrated on a particular example: the Antarctic fur seal (Arctocephalus gazella), which alternates between oceanic areas in which females feed and the land-based colony in which they suckle their young over a 120 days rearing period. Our model shows the importance of the distance covered to feed and prey aggregation which appeared to be key factors to which animals are highly sensitive. Memorization and learning abilities also appear to be essential breeding success traits. Females were found to be most successful for intermediate levels of prey aggregation and short distance to the resource, resulting in optimal female body length. Increased distance to resources due to climate warming should hinder pups' growth and survival while female body length should increase.

  20. Successful modeling of the environmental changes' influence on forests' vegetation over North Eurasia

    CERN Document Server

    Khabarova, O; Medvedeva, M

    2010-01-01

    Modeling of forests' vegetation in North Eurasia has been performed for 1982-2006 on the basis of remote sensing data. Four meteorological parameters and one parameter, characterizing geomagnetic field disturbance level, were used for this aim. It was found out that revealed formula is adequate both for coniferous evergreen and coniferous deciduous forests for accuracy to a coefficient. The most proper parameters' combination gives the correlation coefficients ~ 0.9 between modeling parameter and original data rows. These results could solve problems of climate-forests feedbacks' investigations and be useful for dendrological aims.

  1. Implementation of cancer clinical care pathways: a successful model of collaboration between payers and providers.

    Science.gov (United States)

    Feinberg, Bruce A; Lang, James; Grzegorczyk, James; Stark, Donna; Rybarczyk, Thomas; Leyden, Thomas; Cooper, Joseph; Ruane, Thomas; Milligan, Scott; Stella, Philip; Scott, Jeffrey A

    2012-05-01

    Despite rising medical costs within the US health care system, quality and outcomes are not improving. Without significant policy reform, the cost-quality imbalance will reach unsustainable proportions in the foreseeable future. The rising cost of health care in part results from an expanding aging population with an increasing number of life-threatening diseases. This is further compounded by a growing arsenal of high-cost therapies. In no medical specialty is this more apparent than in the area of oncology. Numerous attempts to reduce costs have been attempted, often with limited benefit and brief duration. Because physicians directly or indirectly control or influence the majority of medical care costs, physician behavioral changes must occur to bend the health care cost curve in a sustainable fashion. Experts within academia, health policy, and business agree that a significant paradigm change in stakeholder collaboration will be necessary to accomplish behavioral change. Such a collaboration has been pioneered by Blue Cross Blue Shield of Michigan and Physician Resource Management, a highly specialized oncology health care consulting firm with developmental and ongoing technical, analytic, and consultative support from Cardinal Health Specialty Solutions, a division of Cardinal Health. We describe a successful statewide collaboration between payers and providers to create a cancer clinical care pathways program. We show that aligned stakeholder incentives can drive high levels of provider participation and compliance in the pathways that lead to physician behavioral changes. In addition, claims-based data can be collected, analyzed, and used to create and maintain such a program.

  2. Implementation of cancer clinical care pathways: s successful model of collaboration between payers and providers.

    Science.gov (United States)

    Feinberg, Bruce A; Lang, James; Grzegorczyk, James; Stark, Donna; Rybarczyk, Thomas; Leyden, Thomas; Cooper, Joseph; Ruane, Thomas; Milligan, Scott; Stella, Phillip; Scott, Jeffrey A

    2012-05-01

    Despite rising medical costs within the US healthcare system, quality and outcomes are not improving. Without significant policy reform, the cost-quality imbalance will reach unsustainable proportions in the foreseeable future. The rising cost of healthcare in part results from an expanding aging population with an increasing number of life-threatening diseases. This is further compounded by a growing arsenal of high-cost therapies. In no medical specialty is this more apparent than in the area of oncology. Numerous attempts to reduce costs have been attempted, often with limited benefit and brief duration. Because physicians directly or indirectly control or influence the majority of medical care costs, physician behavioral changes must occur to bend the healthcare cost curve in a sustainable fashion. Experts within academia, health policy, and business agree that a significant paradigm change in stakeholder collaboration will be necessary to accomplish behavioral change. Such a collaboration has been pioneered by Blue Cross Blue Shield of Michigan and Physician Resource Management, a highly specialized oncology healthcare consulting firm with developmental and ongoing technical, analytic, and consultative support from Cardinal Health Specialty Solutions, a division of Cardinal Health. We describe a successful statewide collaboration between payers and providers to create a cancer clinical care pathways program. We show that aligned stakeholder incentives can drive high levels of provider participation and compliance in the pathways that lead to physician behavioral changes. In addition, claims-based data can be collected, analyzed, and used to create and maintain such a program.

  3. Successful model for cooperative student learning centers in physics and astronomy

    Science.gov (United States)

    Bieniek, Ronald J.; Johnson, John A.

    2003-04-01

    We have established successful problem-based learning centers for introductory courses in physics [1] and astronomy [2] that fully implement the Seven Principles of Good Practice in Undergraduate Education [3] without increased demand on faculty time. Large percentages of students at our two institutions voluntarily utilize these learning venues. Course instructors guide self-forming groups of students to mastery of technical concepts and skills, building greater student self-confidence through direct interaction and feedback. The approach's immediacy helps students recognize ambiguities in their understanding, thereby increasing impact at teachable moments. Underperforming students are assisted along side students who wish to hone their skills. The format also facilitates racial and gender mixing within learning center camaraderie. Specific pedagogical and operational techniques for running learning centers will be presented. [1] http://www.umr.edu/ physics/plc [2] http://astron.berkeley.edu/talc.html [3] A.W. Chickering & Z.F. Gamson, Am. Assoc. Higher Ed. Bulletin, 1987, 39(7) 3-7.

  4. 科幻电影的成功模式%Model for Successful Science Fiction Movies

    Institute of Scientific and Technical Information of China (English)

    郭冰蕾

    2011-01-01

    Whether you are a science fiction fan or not,you may once be attracted by the magic of science fiction movies.I,Robot and I'm legend,which had won both good box-office results and public praise,are such great sci-fi movies that can lead you into an adventurous world and shock you with unexpected plots.The similarities between I,Robot and I'm legend in usage of classical elements,selection of leading actor and theme expression show the reasons for the success of science fiction movies.无论你是否是个科幻迷,都可能曾被科幻电影的魔力吸引过.电影《我,机器人》和《我是传奇》就是这样充满魔力的电影.票房口碑双丰收的它们用离奇的故事情节带领观众踏上一段段惊险刺激的旅程.《我,机器人》和《我是传奇》在内容设置、角色选择和主题延伸上的杰出表现正是科幻电影成功的原因所在.

  5. Minority Students and College Success: Challenges and Solutions

    Science.gov (United States)

    Dolan, Thomas G.

    2008-01-01

    In terms of opportunities for college, the society is not a level playing field, according to David Conley, professor and director of the research center for educational policy, University of Oregon. Middle and upper classes have far more access to the right information than others. Conley adds that when a person goes to college, he/she needs a…

  6. Vegetation succession as affected by decreasing nitrogen deposition, soil characteristics and site management: A modelling approach

    NARCIS (Netherlands)

    Wamelink, G.W.W.; Dobben, van H.F.; Berendse, F.

    2009-01-01

    After many years of increasing nitrogen deposition, the deposition rates are now decreasing. A major question is whether this will result in the expected positive effects on plant species diversity. Long-term experiments that investigate the effects of decreasing deposition are not available. Model

  7. Mentoring and coaching: a model guiding professional nurses to executive success.

    Science.gov (United States)

    Thompson, Renee; Wolf, Debra M; Sabatine, Janice M

    2012-11-01

    Although many nurses aspire to executive positions, they lack the knowledge, support, and guidance to handle the challenges. To succeed at the executive level, ongoing deliberate skill development coupled with support is crucial across a nurse's career trajectory. This article introduces a model emphasizing the importance of mentoring and/or coaching for the aspiring executive nurse leader.

  8. Peer-Mentored Research Development Meeting: A Model for Successful Peer Mentoring among Junior Level Researchers

    Science.gov (United States)

    Santucci, Aimee K.; Lingler, Jennifer H.; Schmidt, Karen L.; Nolan, Beth A. D.; Thatcher, Dawn; Polk, Deborah E.

    2008-01-01

    Objective: This report describes a model for the development, process, and tracking methods of a Peer-mentored Research Development Meeting (PRDM), an interdisciplinary peer mentoring program. The program was initiated in 2004 by a group of postdoctoral scholars and junior faculty from the Schools of the Health Sciences at the University of…

  9. Towards successful electronic commerce strategies : a hierarchy of three management models

    NARCIS (Netherlands)

    Huizingh, Eelko K.R.E.

    1999-01-01

    Although only few managers deny the potential of the Internet, many are struggling with the question how their company can best exploit electronic commerce. Managers need tools that guide them in their quest for effective Web applications. In this paper, we present three models that provide

  10. Online revenue models in the media sector : an exploratory study on their success factors and adoption

    NARCIS (Netherlands)

    Stienstra, Martin R.; Ruel, Hubertus Johannes Maria; Boerrigter, Thomas

    2010-01-01

    Especially for companies in the media sector such as publishers, the Internet has created new strategic and commercial opportunities. However, many companies in the media sector are struggling with how to adapt their business and revenue model for doing profitable business online. This exploratory s

  11. "Someone like Me Can Be Successful": Do College Students Need Same-Gender Role Models

    Science.gov (United States)

    Lockwood, Penelope

    2006-01-01

    Two studies examined the extent to which matching on gender determines the impact of career role models on the self. Because women face negative stereotypes regarding their competence in the workplace, they may derive particular benefit from the example of an outstanding woman who illustrates the possibility of overcoming gender barriers to…

  12. The Contribution of Information to Business Success: A LISREL Model Analysis of Manufacturers in Shanghai.

    Science.gov (United States)

    Vaughan, Liwen Qiu

    1999-01-01

    Describes two studies in Shanghai, one on small and one on medium-sized businesses, that applied the linear structural relations (LISREL) model to determine the contribution of information to business development. Studies showed that information does contribute in a statistically significant way, although it is not as important as other factors…

  13. "Someone like Me Can Be Successful": Do College Students Need Same-Gender Role Models

    Science.gov (United States)

    Lockwood, Penelope

    2006-01-01

    Two studies examined the extent to which matching on gender determines the impact of career role models on the self. Because women face negative stereotypes regarding their competence in the workplace, they may derive particular benefit from the example of an outstanding woman who illustrates the possibility of overcoming gender barriers to…

  14. Examining the Factors That Contribute to Successful Database Application Implementation Using the Technology Acceptance Model

    Science.gov (United States)

    Nworji, Alexander O.

    2013-01-01

    Most organizations spend millions of dollars due to the impact of improperly implemented database application systems as evidenced by poor data quality problems. The purpose of this quantitative study was to use, and extend, the technology acceptance model (TAM) to assess the impact of information quality and technical quality factors on database…

  15. OL-DEC-MDP Model for Multiagent Online Scheduling with a Time-Dependent Probability of Success

    Directory of Open Access Journals (Sweden)

    Cheng Zhu

    2014-01-01

    Full Text Available Focusing on the on-line multiagent scheduling problem, this paper considers the time-dependent probability of success and processing duration and proposes an OL-DEC-MDP (opportunity loss-decentralized Markov Decision Processes model to include opportunity loss into scheduling decision to improve overall performance. The success probability of job processing as well as the process duration is dependent on the time at which the processing is started. The probability of completing the assigned job by an agent would be higher when the process is started earlier, but the opportunity loss could also be high due to the longer engaging duration. As a result, OL-DEC-MDP model introduces a reward function considering the opportunity loss, which is estimated based on the prediction of the upcoming jobs by a sampling method on the job arrival. Heuristic strategies are introduced in computing the best starting time for an incoming job by each agent, and an incoming job will always be scheduled to the agent with the highest reward among all agents with their best starting policies. The simulation experiments show that the OL-DEC-MDP model will improve the overall scheduling performance compared with models not considering opportunity loss in heavy-loading environment.

  16. Determinants for a successful Sémont maneuver: an in-vitro study with a semicircular canal model

    Directory of Open Access Journals (Sweden)

    Dominik Obrist

    2016-09-01

    Full Text Available Objective: To evaluate the effect of time between the movements/steps, angle of body movements as well as the angular velocity of the maneuvers in an in-vitro model of a semicircular canal (SCC to improve the efficacy of the Sémont maneuver in benign paroxysmal positional vertigo (BPPV.Methods: Sémont maneuvers were performed on an in-vitro SCC model. Otoconia trajectories were captured by a video camera. The effects of time between the movements, angles of motion (0°, 10°, 20°, 30° below the horizontal line, different angular velocities (90, 135, 180°/s and otoconia size (36 and 50µm on the final position of the otoconia in the SCC were tested.Results: Without extension of the movements beyond the horizontal, the in-vitro experiments (with particles corresponding to 50 m diameter did not yield successful canalith repositioning. If the movements were extended by 20° beyond the horizontal position, Sémont maneuvers were successful with resting times of at least 16 s. For larger extension angles the required time decreased. However, for smaller particles (36 m the required time doubled. The angular maneuver velocity (tested between 90 and 180°/s did not have a major impact on the final position of the otoconia.Interpretation: The two primary determinants for success of the Sémont maneuver are the time between the movements and the extension of the movements beyond the horizontal. The time between the movements should be at least 45 s. Angles of 20° or more below horizontal line (so-called Sémont ++ should increase the success rate of SM.

  17. Andragogical Modeling and the Success of the "EMPACTS" project-based learning model in the STEM disciplines: A decade of growth and learner success in the 2Y College Learning Environment.

    Science.gov (United States)

    Phillips, C. D.; Thomason, R.; Galloway, M.; Sorey, N.; Stidham, L.; Torgerson, M.

    2014-12-01

    EMPACTS (Educationally Managed Projects Advancing Curriculum, Technology/Teamwork and Service) is a project-based, adult learning modelthat is designed to enhance learning of course content through real-world application and problem solving self directed and collaborative learning use of technology service to the community EMPACTS students are self-directed in their learning, often working in teams to develop, implement, report and present final project results. EMPACTS faculty use community based projects to increase deeper learning of course content through "real-world" service experiences. Learners develop personal and interpersonal work and communication skills as they plan, execute and complete project goals together. Technology is used as a tool to solve problems and to publish the products of their learning experiences. Courses across a broad STEM curriculum integrate the EMPACTS project experience into the overall learning outcomes as part of the learning college mission of preparing 2Y graduates for future academic and/or workforce success. Since the program began in 2005, there have been over 200 completed projects/year. Student driven successes have led to the establishment of an EMPACTS Technology Corp, which is funded through scholarship and allows EMPACTS learners the opportunity to serve and learn from one another as "peer instructors." Engineering and 3D graphic design teams have written technology proposals and received funding for 3D printing replication projects, which have benefited the college as a whole through grant opportunities tied to these small scale successes. EMPACTS students engage in a variety of outreachprojects with area schools as they share the successes and joys of self directed, inquiry, project based learning. The EMPACTS Program has successfully trained faculty and students in the implementation of the model and conduct semester to semester and once a year workshops for college and K-12 faculty, who are interested in

  18. A model of a successful utilization of a high genetic potential of maize yield

    Directory of Open Access Journals (Sweden)

    Pavlov Milovan

    2008-01-01

    Full Text Available The principle of a system, defined as a ZP system, implying corresponding relationship among research, seed production and seed marketing, is that each segment within the system has its tasks and responsibilities, as well as, a clear interest. This system was established at the Maize Research Institute, Zemun Polje, almost half a century ago. The crucial characteristic is that this system encompasses obtained results of scientific accomplishments (patent - a released hybrid, optimal utilisation of the environmental conditions, facilities for seed drying, processing and packing, staff and transport capacities. The ZP system provides the economic interest of all participants in studies and the maize seed production. The fundamental base of the quality seed production within the ZP system is a multidisciplinary programme on maize breeding, as well as, 535 released hybrids with standard and specific traits. According to regulations in foreign countries, approximately 100 ZP maize hybrids have been released abroad. Agroecological conditions in Serbia are favorable for the development of the best genotypes and the production of basic and certified maize seed. There 10 processing plants that apply recent technologies in the maize seed processing procedure. Several generations of experts have been trained and gained experience within the maize seed production. Three seed testing laboratories have been accredited by the International Seed Testing Association. According to regulations in Serbia, monitoring of seed production under field conditions, and further on, during the processing practice is done only by designate authorities. This study presents one of successful systems of the seed production organization applicable in countries with similar conditions.

  19. Artificial Neural Network based Diagnostic Model For Causes of Success and Failures

    CERN Document Server

    Kaur, Bikrampal

    2010-01-01

    In this paper an attempt has been made to identify most important human resource factors and propose a diagnostic model based on the back-propagation and connectionist model approaches of artificial neural network (ANN). The focus of the study is on the mobile -communication industry of India. The ANN based approach is particularly important because conventional approaches (such as algorithmic) to the problem solving have their inherent disadvantages. The algorithmic approach is well-suited to the problems that are well-understood and known solution(s). On the other hand the ANNs have learning by example and processing capabilities similar to that of a human brain. ANN has been followed due to its inherent advantage over conversion algorithmic like approaches and having capabilities, training and human like intuitive decision making capabilities. Therefore, this ANN based approach is likely to help researchers and organizations to reach a better solution to the problem of managing the human resource. The stud...

  20. Application of Innovative Models in Teaching Methods for Introduction to Nature and Society and Students’ Success

    OpenAIRE

    Snezana Stavreva Veselinovska; Snezana Kirova

    2014-01-01

    This paper deals with the issue of shaping and applying innovative models in the teaching of Teaching methods for introduction to nature and society in the conditions existing in our schools. Most teachers need a modern methodical transformation of program contents for teaching nature and society. Therefore the theoretical part of the work is directed towards the consideration of innovative approaches in Teaching methods for introduction to nature and society, which asked for an indication of...

  1. Developing Vibrant State Defense Forces: A Successful Medical and Health Service Model

    Science.gov (United States)

    2006-01-01

    MEDICAL AND HEALTH SERVICE MODEL Colonel (MD) H. Wayne Nelson, Ph.D. Colonel (MD) Robert Barish, M.D. Brigadier General (MD) Frederic Smalkin, J.D...Its Deputy Commander and MRC project action officer was (one of the authors, Nelson), a professor in the Health Science Department in Towson ...Director COL Wayne Nelson, to select “medically-qualified soldiers” who would accept assignment to “participate in humanitarian missions in response and

  2. MODEL - INTEGRAL METHODOLOGY FOR SUCCESSFUL DESIGNING AND IMPLEMENTING OF TQM SYSTEM IN MACEDONIAN COMPANIES

    Directory of Open Access Journals (Sweden)

    Elizabeta Mitreva

    2011-12-01

    Full Text Available The subject of this paper is linked with the valorization of the meaning and the perspectives of Total Quality Management (TQM system design and implementation within the domestic companies and creating a model-methodology for improved performance, efficiency and effectiveness. The research is designed as an attempt to depict the existing condition in the Macedonian companies regarding quality system design and implementation, analysed through 4 polls in the "house of quality" whose top is the ultimate management, and as its bases measurement, evaluation, analyzing and comparison of the quality are used. This "house" is being held by 4 subsystems e.g. internal standardization, methods and techniques for flawless work performance, education and motivation and analyses of the quality costs. The data received from the research and the proposal of the integral methodology for designing and implementing of TQM system are designed in turn to help and present useful directions to all Macedonian companies tending to become "world class" organizations. The basis in the creation of this model is the redesign of the business processes which afterword begins as a new phase of the business performance - continued improvement, rolling of Deming's Quality Circle (Plan-Do-Check-Act. The model-methodology proposed in this paper is integral and universal which means that it is applicable to all companies regardless of the business area.

  3. Thermo-magnetic history effects in the giant magnetostriction across the first-order transition and minor hysteresis loops modeling in Fe0.955Ni0.045Rh alloy.

    Science.gov (United States)

    Manekar, Meghmalhar; Sharma, V K; Roy, S B

    2012-05-30

    Results of temperature- and magnetic field-dependent strain measurements across the first-order antiferromagnetic to ferromagnetic phase transition in Fe(0.955)Ni(0.045)Rh are presented. Distinct thermal and magnetic field hystereses are observed in the measured strain across the phase transition. The minor hysteresis loops inside the hysteretic regime across the temperature-driven transition are modeled using the Preisach model of hysteresis. The applicability of the Preisach model to explain the general features of minor hysteresis loops is discussed for a disorder influenced first-order transition. The minor hysteresis loops show the property of retaining the memory of the starting or end point of the temperature cycle followed within the hysteretic region. A larger temperature excursion within the hysteretic region wipes out the memory of a smaller temperature cycle which contains one of the extrema of the larger cycle. The end-point memory and the wiping-out property of the minor hysteresis loops can be described quite well within the Preisach model, irrespective of the temperature history followed to reach a particular starting point. Thermo-magnetic history effects across the magnetic field-induced transition are explained, which will enable the choice of the starting point of an experimental cycle in the field-temperature phase space so as to achieve the desired functionality. Our results highlight the necessity to understand the influence of disorder on a first-order phase transition so as to achieve a repeatable performance of materials whose functionalities are based on such a transition.

  4. Site descriptive modelling Forsmark, stage 2.2. A fracture domain concept as a basis for the statistical modelling of fractures and minor deformation zones, and interdisciplinary coordination

    Energy Technology Data Exchange (ETDEWEB)

    Olofsson, Isabelle; Simeonov, Assen [Swedish Nuclear Fuel and Waste Manageme nt Co., Stockholm (Sweden); Stephens, Michael [Geological Survey of Sweden (SGU), U ppsala (Sweden); Follin, Sven [SF GeoLogic AB, Taeby (Sweden); Nilsson, Ann-Chatrin [G eosigma AB, Uppsala (Sweden); Roeshoff, Kennert; Lindberg, Ulrika; Lanaro, Flavio [Bergbygg konsult AB, Haesselby (Sweden); Fredriksson, Anders; Persson, Lars [Golder Associat es AB (Sweden)

    2007-04-15

    The Swedish Nuclear Fuel and Waste Management Company (SKB) is undertaking site characterization at two different locations, Forsmark and Simpevarp/Laxemar, with the objective of siting a final waste repository at depth for spent nuclear fuel. The programme is built upon the development of site descriptive models after each data freeze. This report describes the first attempt to define fracture domains for the Forsmark site modelling in stage 2.2. Already during model version 1.2 at Forsmark, significant spatial variability in the fracture pattern was observed. The variability appeared to be so significant that it provoked the need for a subdivision of the model volume for the treatment of geological and hydrogeological data into sub-volumes. Subsequent analyses of data collected up to data freeze 2.1 led to a better understanding of the site and a concept for the definition of fracture domains based on geological characteristics matured. The main objectives of this report are to identify and describe fracture domains at the site on the basis of geological data and to compile hydrogeological, hydrogeochemical and rock mechanics data within each fracture domain and address the implications of this integration activity. On the basis of borehole data, six fracture domains (FFM01-FFM06) have been recognized inside and immediately around the candidate volume. Three of these domains (FFM01, FFM02 and FFM06) lie inside the target volume for a potential repository in the northwestern part of the candidate area, and need to be addressed in the geological DFN modelling work. The hydrogeological data support the subdivision of the bedrock into fracture domains FFM01, FFM02 and FFM03. Few or no data are available for the other three domains. The hydrogeochemical data also support the subdivision into fracture domains FFM01 and FFM02. Since few data are available from the bedrock between deformation zones inside FFM03, there is little information on the hydrogeochemical

  5. MEP solution for a minimal climate model: success and limitation of a variational problem

    Directory of Open Access Journals (Sweden)

    S. Pascale

    2011-05-01

    Full Text Available Maximum Entropy Production conjecture (MEP is applied to a minimal four-box model of climate which accounts for both horizontal and vertical material heat fluxes. It is shown that, under condition of fixed insolation, a MEP solution is found with reasonably realistic temperature and heat fluxes, thus generalising results from independent two-box horizontal or vertical models. It is also shown that the meridional and the vertical entropy production terms are independently involved in the maximisation and thus MEP can be applied to each subsystem with fixed boundary conditions. We then extend the four-box model by increasing its number of degrees of freedom, and test its realism by comparing it with a GCM output. An order-of-magnitude evaluation of contributions to the material entropy production (≈50 mW m−2 K−1 due to horizontal and vertical processes within the climate system is carried out by using ad hoc temperature fields. It turns out that approximately 40 mW m−2 K−1 is the entropy production due to vertical heat transport and 5–7 mW m−2 K−1 to horizontal heat transport. A MEP solution is found which is fairly realistic as far as the horizontal large scale organisation of the surface climate is concerned whereas the vertical structure looks to be unrealistic and presents seriously unstable features. Finally a more general problem is investigated in which the longwave transmissivity is varied simultaneously with the temperature. This leads to a MEP solution characterised by a much warmer climate, with very vigorous vertical heat fluxes, in which the atmosphere is opaque to longwave radiation. A critical discussion about how to interpret MEP and how to apply it in a physically correct way concludes the paper.

  6. A South African public-private partnership HIV treatment model: viability and success factors.

    Directory of Open Access Journals (Sweden)

    Jude Igumbor

    Full Text Available INTRODUCTION: The increasing number of people requiring HIV treatment in South Africa calls for efficient use of its human resources for health in order to ensure optimum treatment coverage and outcomes. This paper describes an innovative public-private partnership model which uses private sector doctors to treat public sector patients and ascertains the model's ability to maintain treatment outcomes over time. METHODS: The study used a retrospective design based on the electronic records of patients who were down-referred from government hospitals to selected private general medical practitioners (GPs between November 2005 and October 2012. In total, 2535 unique patient records from 40 GPs were reviewed. The survival functions for mortality and attrition were calculated. Cumulative incidence of mortality for different time cohorts (defined by year of treatment initiation was also established. RESULTS: The median number of patients per GP was 143 (IQR: 66-246. At the time of down-referral to private GPs, 13.8% of the patients had CD4 count <200 cell/mm(3, this proportion reduced to 6.6% at 12 months and 4.1% at 48 months. Similarly, 88.4% of the patients had suppressed viral load (defined as HIV-1 RNA <400 copies/ml at 48 months. The patients' probability of survival at 12 and 48 months was 99.0% (95% CI: 98.4%-99.3% and 89.0% (95% CI: 87.1%-90.0% respectively. Patient retention at 48 months remained high at 94.3% (95% CI: 93.0%-95.7%. CONCLUSIONS: The study findings demonstrate the ability of the GPs to effectively maintain patient treatment outcomes and potentially contribute to HIV treatment scale-up with the relevant support mechanism. The model demonstrates how an assisted private sector based programme can be effectively and efficiently used to either target specific health concerns, key populations or serve as a stop-gap measure to meet urgent health needs.

  7. Toronto Heart Attack Collaborative: an administrative model that facilitated a successful city-wide integration initiative.

    Science.gov (United States)

    Young, Justin; McLellan, Barry; Escaf, Marnie; Dzavik, Vladimir; Michaud, Susan; Newton, Janet; Newman, Erone

    2014-01-01

    This article provides a description of the administrative model that enabled a city-wide integration effort between Greater Toronto Area hospitals and Toronto Emergency Medical Services in the care of patients within the city of Toronto with ST elevation myocardial infarction (STEMI). This administrative structure, known as the Toronto Heart Attack Collaborative (THAC), enabled universal 24/7 access to primary percutaneous coronary intervention within Toronto, improving patient efficacy and outcomes. The lessons and administrative enablers from this experience may be useful for regions that are embarking on multi-centre integration efforts. This article presents a five-year perspective on the THAC integration effort.

  8. Restless led syndrome model Drosophila melanogaster show successful olfactory learning and 1-day retention of the acquired memory

    Directory of Open Access Journals (Sweden)

    Mika F. Asaba

    2013-09-01

    Full Text Available Restless Legs Syndrome (RLS is a prevalent but poorly understood disorder that ischaracterized by uncontrollable movements during sleep, resulting in sleep disturbance.Olfactory memory in Drosophila melanogaster has proven to be a useful tool for the study ofcognitive deficits caused by sleep disturbances, such as those seen in RLS. A recently generatedDrosophila model of RLS exhibited disturbed sleep patterns similar to those seen in humans withRLS. This research seeks to improve understanding of the relationship between cognitivefunctioning and sleep disturbances in a new model for RLS. Here, we tested learning andmemory in wild type and dBTBD9 mutant flies by Pavlovian olfactory conditioning, duringwhich a shock was paired with one of two odors. Flies were then placed in a T-maze with oneodor on either side, and successful associative learning was recorded when the flies chose theside with the unpaired odor. We hypothesized that due to disrupted sleep patterns, dBTBD9mutant flies would be unable to learn the shock-odor association. However, the current studyreports that the recently generated Drosophila model of RLS shows successful olfactorylearning, despite disturbed sleep patterns, with learning performance levels matching or betterthan wild type flies.

  9. 76 FR 51375 - Dialogues in Diversifying Clinical Trials: Successful Strategies for Engaging Women and...

    Science.gov (United States)

    2011-08-18

    ... HUMAN SERVICES Food and Drug Administration Dialogues in Diversifying Clinical Trials: Successful Strategies for Engaging Women and Minorities in Clinical Trials AGENCY: Food and Drug Administration, HHS... Diversifying Clinical Trials: Successful Strategies for Engaging Women and Minorities in Clinical Trials....

  10. Estimating successive cancer risks in Lynch Syndrome families using a progressive three-state model.

    Science.gov (United States)

    Choi, Yun-Hee; Briollais, Laurent; Green, Jane; Parfrey, Patrick; Kopciuk, Karen

    2014-02-20

    Lynch Syndrome (LS) families harbor mutated mismatch repair genes,which predispose them to specific types of cancer. Because individuals within LS families can experience multiple cancers over their lifetime, we developed a progressive three-state model to estimate the disease risk from a healthy (state 0) to a first cancer (state 1) and then to a second cancer (state 2). Ascertainment correction of the likelihood was made to adjust for complex sampling designs with carrier probabilities for family members with missing genotype information estimated using their family's observed genotype and phenotype information in a one-step expectation-maximization algorithm. A sandwich variance estimator was employed to overcome possible model misspecification. The main objective of this paper is to estimate the disease risk (penetrance) for age at a second cancer after someone has experienced a first cancer that is also associated with a mutated gene. Simulation study results indicate that our approach generally provides unbiased risk estimates and low root mean squared errors across different family study designs, proportions of missing genotypes, and risk heterogeneities. An application to 12 large LS families from Newfoundland demonstrates that the risk for a second cancer was substantial and that the age at a first colorectal cancer significantly impacted the age at any LS subsequent cancer. This study provides new insights for developing more effective management of mutation carriers in LS families by providing more accurate multiple cancer risk estimates.

  11. Optimality and some of its discontents: successes and shortcomings of existing models for binary decisions.

    Science.gov (United States)

    Holmes, Philip; Cohen, Jonathan D

    2014-04-01

    We review how leaky competing accumulators (LCAs) can be used to model decision making in two-alternative, forced-choice tasks, and we show how they reduce to drift diffusion (DD) processes in special cases. As continuum limits of the sequential probability ratio test, DD processes are optimal in producing decisions of specified accuracy in the shortest possible time. Furthermore, the DD model can be used to derive a speed-accuracy trade-off that optimizes reward rate for a restricted class of two alternative forced-choice decision tasks. We review findings that compare human performance with this benchmark, and we reveal both approximations to and deviations from optimality. We then discuss three potential sources of deviations from optimality at the psychological level--avoidance of errors, poor time estimation, and minimization of the cost of control--and review recent theoretical and empirical findings that address these possibilities. We also discuss the role of cognitive control in changing environments and in modulating exploitation and exploration. Finally, we consider physiological factors in which nonlinear dynamics may also contribute to deviations from optimality.

  12. How partial reinforcement of food cues affects the extinction and reacquisition of appetitive responses. A new model for dieting success?

    Science.gov (United States)

    van den Akker, Karolien; Havermans, Remco C; Bouton, Mark E; Jansen, Anita

    2014-10-01

    Animals and humans can easily learn to associate an initially neutral cue with food intake through classical conditioning, but extinction of learned appetitive responses can be more difficult. Intermittent or partial reinforcement of food cues causes especially persistent behaviour in animals: after exposure to such learning schedules, the decline in responding that occurs during extinction is slow. After extinction, increases in responding with renewed reinforcement of food cues (reacquisition) might be less rapid after acquisition with partial reinforcement. In humans, it may be that the eating behaviour of some individuals resembles partial reinforcement schedules to a greater extent, possibly affecting dieting success by interacting with extinction and reacquisition. Furthermore, impulsivity has been associated with less successful dieting, and this association might be explained by impulsivity affecting the learning and extinction of appetitive responses. In the present two studies, the effects of different reinforcement schedules and impulsivity on the acquisition, extinction, and reacquisition of appetitive responses were investigated in a conditioning paradigm involving food rewards in healthy humans. Overall, the results indicate both partial reinforcement schedules and, possibly, impulsivity to be associated with worse extinction performance. A new model of dieting success is proposed: learning histories and, perhaps, certain personality traits (impulsivity) can interfere with the extinction and reacquisition of appetitive responses to food cues and they may be causally related to unsuccessful dieting.

  13. The effect of social facilitation on foraging success in vultures: a modelling study.

    Science.gov (United States)

    Jackson, Andrew L; Ruxton, Graeme D; Houston, David C

    2008-06-23

    The status of many Gyps vulture populations are of acute conservation concern as several show marked and rapid decline. Vultures rely heavily on cues from conspecifics to locate carcasses via local enhancement. A simulation model is developed to explore the roles vulture and carcass densities play in this system, where information transfer plays a key role in locating food. We find a sigmoid relationship describing the probability of vultures finding food as a function of vulture density in the habitat. This relationship suggests a threshold density below which the foraging efficiency of the vulture population will drop rapidly towards zero. Management strategies should closely study this foraging system in order to maintain effective foraging densities.

  14. Early structure formation with cold plus hot dark matter a success of strings plus inflation model

    CERN Document Server

    Battye, R A; Weller, J; Battye, Richard A.; Magueijo, Joao; Weller, Jochen

    1999-01-01

    Quantum fluctuations created during inflation can account for the observed matter distribution in the linear regime if the universe has two components of dark matter, one which is cold and collisionless, and the other which is hot and free streams on small scales. However, this free streaming property of the hot component prevents early structure formation, and since objects, such as damped Lyman-$\\alpha$ systems, have been observed at high redshift, it is necessary to produce more power on small scales. Here, we show that the situation can be improved substantially in models where cosmic strings are formed at the end of inflation, and in which both inflation and strings participate in the generation of structure.

  15. Supporting evaluation and implementation of musculoskeletal Models of Care: A globally-informed framework for judging 'readiness' and 'success'.

    Science.gov (United States)

    Briggs, Andrew M; Jordan, Joanne E; Jennings, Matthew; Speerin, Robyn; Bragge, Peter; Chua, Jason; Woolf, Anthony D; Slater, Helen

    2016-06-06

    Objective To develop a globally-informed framework to evaluate 'readiness' for implementation and 'success' after implementation of musculoskeletal Models of Care (MoCs). Methods Three-phases were undertaken: 1) qualitative study with 27 Australian subject matter experts (SMEs) to develop a draft Framework; 2) eDelphi study with an international panel of 93 SMEs across 30 nations to evaluate face validity, refine and establish consensus on the Framework components; and 3) translation of the Framework into a user-focused resource and evaluation of its acceptability with the eDelphi panel. Results A comprehensive evaluation framework was developed for judging 'readiness' and 'success' of musculoskeletal MoCs. The Framework consists of nine domains, with each domain containing a number of themes underpinned by detailed elements. In the first Delphi round, scores of 'partly agree' or 'completely agree' with the draft Framework ranged from 96.7-100%. In the second round, 'essential' scores ranged from 58.6-98.9%, resulting in 14 of 34 themes being classified as essential. SMEs strongly agreed or agreed that the final Framework was useful (98.8%), usable (95.1%), credible (100%) and appealing (93.9%). Overall, 96.3% strongly supported or supported the final structure of the Framework as it was presented, while 100%, 96.3% and 100% strongly supported or supported the content within the readiness, initiating implementation and success streams, respectively. Conclusions An empirically-derived framework to evaluate the readiness and success of musculoskeletal MoCs was strongly supported by an international panel of SMEs. The Framework provides an important internationally-applicable benchmark for the development, implementation and evaluation of musculoskeletal MoCs. This article is protected by copyright. All rights reserved.

  16. Progress and pitfalls in underrepresented minority recruitment: perspectives from the medical schools.

    Science.gov (United States)

    Agrawal, Jaya R.; Vlaicu, Sorina; Carrasquillo, Olveen

    2005-01-01

    PURPOSE: To assess current initiatives at U.S. medical schools to recruit underrepresented minorities (URM) and to identify perceived barriers to enrollment of URM students. METHODS: We developed a survey that was mailed to the dean of Student Affairs of all U.S. allopathic and osteopathic medical schools in 2002. Respondents were asked to list their schools' URM recruitment programs and rate the effectiveness of these programs. They were also asked to indicate barriers to URM recruitment from a list of 37 potential barriers and rate their overall success with URM recruitment. RESULTS: The study had a 59% response rate. All schools reported a wide variety of initiatives for URM recruitment with > or =50% of all schools using each of the 11 strategies. The three most commonly listed barriers to URM recruitment were MCAT scores of applicants (90%), lack of minority faculty (71%) and lack of minority role models (71%). Most schools rated their recruitment efforts highly; on a scale of 1 to 10 (10 being very successful), the average score was an 8. CONCLUSION: While schools continue to invest tremendous efforts in recruiting minority applicants, admissions criteria, lack of URM faculty and the need for external evaluation remain important barriers to achieving a diverse physician workforce. PMID:16296213

  17. Successive Student Cohorts and Longitudinal Growth Models: An Investigation of Elementary School Mathematics Performance

    Directory of Open Access Journals (Sweden)

    Keith Zvoch

    2006-01-01

    Full Text Available Mathematics achievement data from three longitudinally matched student cohorts were analyzed with multilevel growth models to investigate the viability of using status and growth-based indices of student achievement to examine the multi-year performance of schools. Elementary schools in a large southwestern school district were evaluated in terms of the mean achievement status and growth of students across cohorts as well as changes in the achievement status and growth of students between student cohorts. Results indicated that the cross and between-cohort performance of schools differed depending on whether the mean achievement status or growth of students was considered. Results also indicated that the cross-cohort indicators of school performance were more reliably estimated than their between-cohort counterparts. Further examination of the performance indices revealed that cross-cohort achievement status estimates were closely related to student demographics while between-cohort estimates were associated with cohort enrollment size and cohort initial performance status. Of the four school performance indices studied, only student growth in achievement (averaged across cohorts provided a relatively reliable and unbiased indication of school performance. Implications for the No Child Left Behind school accountability framework are discussed.

  18. Sustainable business models: systematic approach toward successful ambulatory care pharmacy practice.

    Science.gov (United States)

    Sachdev, Gloria

    2014-08-15

    This article discusses considerations for making ambulatory care pharmacist services at least cost neutral and, ideally, generate a margin that allows for service expansion. The four pillars of business sustainability are leadership, staffing, information technology, and compensation. A key facet of leadership in ambulatory care pharmacy practice is creating and expressing a clear vision for pharmacists' services. Staffing considerations include establishing training needs, maximizing efficiencies, and minimizing costs. Information technology is essential for efficiency in patient care delivery and outcomes assessment. The three domains of compensation are cost savings, pay for performance, and revenue generation. The following eight steps for designing and implementing an ambulatory care pharmacist service are discussed: (1) prepare a needs assessment, (2) analyze existing strengths, weaknesses, opportunities, and threats, (3) analyze service gaps and feasibility, (4) consider financial opportunities, (5) consider stakeholders' interests, (6) develop a business plan, (7) implement the service, and (8) measure outcomes. Potential future changes in national healthcare policy (such as pharmacist provider status and expanded pay for performance) could enhance the opportunities for sustainable ambulatory care pharmacy practice. The key challenges facing ambulatory care pharmacists are developing sustainable business models, determining which services yield a positive return on investment, and demanding payment for value-added services. Copyright © 2014 by the American Society of Health-System Pharmacists, Inc. All rights reserved.

  19. Successive bifurcations in a shallow-water model applied to the wind-driven ocean circulation

    Directory of Open Access Journals (Sweden)

    1995-01-01

    Full Text Available Climate - the "coarse-gridded" state of the coupled ocean - atmosphere system - varies on many time and space scales. The challenge is to relate such variation to specific mechanisms and to produce verifiable quantitative explanations. In this paper, we study the oceanic component of the climate system and, in particular, the different circulation regimes of the mid-latitude win driven ocean on the interannual time scale. These circulations are dominated by two counterrotating, basis scale gyres: subtropical and subpolar. Numerical techniques of bifurcation theory are used to stud the multiplicity and stability of the steady-state solution of a wind-driven, double-gyre, reduced-gravity, shallow water model. Branches of stationary solutions and their linear stability are calculated systematically as parameter are varied. This is one of the first geophysical studies i which such techniques are applied to a dynamical system with tens of thousands of degrees of freedom. Multiple stationary solutions obtain as a result of nonlinear interactions between the two main recirculating cell (cyclonic and anticyclonic of the large- scale double-gyre flow. These equilibria appear for realistic values of the forcing and dissipation parameters. They undergo Hop bifurcation and transition to aperiodic solutions eventually occurs. The periodic and chaotic behaviour is probably related to an increased number of vorticity cells interaction with each other. A preliminary comparison with observations of the Gulf Stream and Kuroshio Extensions suggests that the intern variability of our simulated mid-latitude ocean is a important factor in the observed interannual variability o these two current systems.

  20. Linking Formal and Informal Science Education: A Successful Model using Libraries, Volunteers and NASA Resources

    Science.gov (United States)

    Race, M. S.; Lafayette Library; Learning Center Foundation (Lllcf)

    2011-12-01

    In these times of budget cuts, tight school schedules, and limited opportunities for student field trips and teacher professional development, it is especially difficult to expose elementary and middle school students to the latest STEM information-particularly in the space sciences. Using our library as a facilitator and catalyst, we built a volunteer-based, multi-faceted, curriculum-linked program for students and teachers in local middle schools (Grade 8) and showcased new astronomical and planetary science information using mainly NASA resources and volunteer effort. The project began with the idea of bringing free NASA photo exhibits (FETTU) to the Lafayette and Antioch Libraries for public display. Subsequently, the effort expanded by adding layers of activities that brought space and science information to teachers, students and the pubic at 5 libraries and schools in the 2 cities, one of which serves a diverse, underserved community. Overall, the effort (supported by a pilot grant from the Bechtel Foundation) included school and library based teacher workshops with resource materials; travelling space museum visits with hands-on activities (Chabot-to-Go); separate powerpoint presentations for students and adults at the library; and concurrent ancillary space-related themes for young children's programs at the library. This pilot project, based largely on the use of free government resources and online materials, demonstrated that volunteer-based, standards-linked STEM efforts can enhance curriculum at the middle school, with libraries serving a special role. Using this model, we subsequently also obtained a small NASA-Space Grant award to bring star parties and hand-on science activities to three libraries this Fall, linking with numerous Grade 5 teachers and students in two additional underserved areas of our county. It's not necessary to reinvent the wheel, you just collect the pieces and build on what you already have.

  1. Stress field sensitivity analysis within Mesozoic successions in the Swiss Alpine foreland using 3-D-geomechanical-numerical models

    Science.gov (United States)

    Reiter, Karsten; Hergert, Tobias; Heidbach, Oliver

    2016-04-01

    The in situ stress conditions are of key importance for the evaluation of radioactive waste repositories. In stage two of the Swiss site selection program, the three siting areas of high-level radioactive waste are located in the Alpine foreland in northern Switzerland. The sedimentary succession overlays the basement, consisting of variscan crystalline rocks as well as partly preserved Permo-Carboniferous deposits in graben structures. The Mesozoic sequence represents nearly the complete era and is covered by Cenozoic Molasse deposits as well as Quaternary sediments, mainly in the valleys. The target horizon (designated host rock) is an >100 m thick argillaceous Jurassic deposit (Opalinus Clay). To enlighten the impact of site-specific features on the state of stress within the sedimentary succession, 3-D-geomechanical-numerical models with elasto-plastic rock properties are set up for three potential siting areas. The lateral extent of the models ranges between 12 and 20 km, the vertical extent is up to a depth of 2.5 or 5 km below sea level. The sedimentary sequence plus the basement are separated into 10 to 14 rock mechanical units. The Mesozoic succession is intersected by regional fault zones; two or three of them are present in each model. The numerical problem is solved with the finite element method with a resolution of 100-150 m laterally and 10-30 m vertically. An initial stress state is established for all models taking into account the depth-dependent overconsolidation ratio in Opalinus Clay in northern Switzerland. The influence of topography, rock properties, friction on the faults as well as the impact of tectonic shortening on the state of stress is investigated. The tectonic stress is implemented with lateral displacement boundary conditions, calibrated on stress data that are compiled in Northern Switzerland. The model results indicate that the stress perturbation by the topography is significant to depths greater than the relief contrast. The

  2. Successful endothelialization and remodeling of a cell-free small-diameter arterial graft in a large animal model.

    Science.gov (United States)

    Koobatian, Maxwell T; Row, Sindhu; Smith, Randall J; Koenigsknecht, Carmon; Andreadis, Stelios T; Swartz, Daniel D

    2016-01-01

    The large number of coronary artery bypass procedures necessitates development of off-the-shelf vascular grafts that do not require cell or tissue harvest from patients. However, immediate thrombus formation after implantation due to the absence of a healthy endothelium is very likely. Here we present the successful development of an acellular tissue engineered vessel (A-TEV) based on small intestinal submucosa that was functionalized sequentially with heparin and VEGF. A-TEVs were implanted into the carotid artery of an ovine model demonstrating high patency rates and significant host cell infiltration as early as one week post-implantation. At one month, a confluent and functional endothelium was present and the vascular wall showed significant infiltration of host smooth muscle cells exhibiting vascular contractility in response to vaso-agonists. After three months, the endothelium aligned in the direction of flow and the medial layer comprised of circumferentially aligned smooth muscle cells. A-TEVs demonstrated high elastin and collagen content as well as impressive mechanical properties and vascular contractility comparable to native arteries. This is the first demonstration of successful endothelialization, remodeling, and development of vascular function of a cell-free vascular graft that was implanted in the arterial circulation of a pre-clinical animal model. Copyright © 2015 Elsevier Ltd. All rights reserved.

  3. Social Interaction and the Minority-Majority Earnings Inequality : Why Being a Minority Hurts but being a big Minority Hurts More

    NARCIS (Netherlands)

    Kahanec, M.

    2004-01-01

    Empirical findings that minorities typically attain lower economic status than majorities and that relatively larger minorities perform worse than smaller ones pose a challenge to economics.To explain this scale puzzle, I model an economy where the society is bifurcated into two social groups that d

  4. Social Interaction and the Minority-Majority Earnings Inequality : Why Being a Minority Hurts but being a big Minority Hurts More

    NARCIS (Netherlands)

    Kahanec, M.

    2004-01-01

    Empirical findings that minorities typically attain lower economic status than majorities and that relatively larger minorities perform worse than smaller ones pose a challenge to economics.To explain this scale puzzle, I model an economy where the society is bifurcated into two social groups that

  5. THE NATIONAL MINORITY CONSULTATIVE MECHANISMS - THE COUNCILS OF NATIONAL MINORITIES IN BOSNIA AND HERZEGOVINA

    Directory of Open Access Journals (Sweden)

    Aleksandar Čorni

    2016-09-01

    Full Text Available The article tries to explore the practical application of the soft law, in concrete terms, the documents adopted by the Organization for Security and Co-operation in Europe, referring to the models of participation of national minorities in public life in the case of Bosnia and Herzegovina. The objective of the research was to assess the legal and political grounds for functioning national minority councils as participation and consultative mechanisms, scope of responsibilities and capacities in relation to their effectiveness and impact and to identify relevant good practices on such mechanisms. The political and decision-making structures in Bosnia and Herzegovina demonstrated lack of actual commitment to the realization of the rights of minorities referring to participation in decision-making processes. Bearing in mind formal position within parliaments, visibility, and a significant promotional capacity for presence in the public sphere, the councils on national minorities may represent a significant body and channel for the minority – majority dialogue. However, at the moment, the national minority councils’ capacity to ensure participation of national minorities in Bosnian political life and their influence in decision-making process remains insufficient. In general, the consultative mechanisms, within their mandated responsibilities, have had insignificant and minimal impact on the practical, political and legislative segment.

  6. Sexual Minority Stressors, Internalizing Symptoms, and Unhealthy Eating Behaviors in Sexual Minority Youth.

    Science.gov (United States)

    Katz-Wise, Sabra L; Scherer, Emily A; Calzo, Jerel P; Sarda, Vishnudas; Jackson, Benita; Haines, Jess; Austin, S Bryn

    2015-12-01

    Sexual minorities are more likely than heterosexuals to engage in unhealthy eating behaviors. The purpose of this study is to examine sexual minority stressors and internalizing symptoms as predictors of unhealthy eating behaviors among sexual minority youths. We used longitudinal data from 1461 sexual minority youths in the Growing Up Today Study, across ages 14-28 years. We hypothesized that sexual minority stressors would predict unhealthy eating behaviors, in part due to internalizing symptoms. Linear regression models fit via generalized estimating equations were stratified by gender and sexual orientation. Significant positive and inverse associations between stressors and eating behaviors were detected among females and males, with more significant associations among females. Associations were attenuated by up to 71 % for females and 12 % for males when internalizing symptoms were added to the models. Sexual minority stressors predicted unhealthy eating behaviors overall and more so for some sexual orientation and gender groups; associations were partially explained by internalizing symptoms. The conceptual model appears to best describe the experiences of bisexual females. Findings have clinical implications for adolescent health.

  7. Minority Language Protection in Italy: Linguistic Minorities and the Media

    Directory of Open Access Journals (Sweden)

    Aline Sierp

    2008-12-01

    Full Text Available This article deals with the Italian case of minority language protection in the media. After providing a general introduction to the development of the protection of minority languages in Europe in general and of minority language broadcast media in Italy in particular, the article focuses on the role that mass media can play in the preservation or weakening of minority languages. By comparing different measures of protection adopted by national and regional authorities in Italy, the article aims to illustrate how these measures can be translated into different levels of development of broadcast media provisions for linguistic minorities. The article explores some of the effects different protective measures can have on the survival, status and economic conditions of the linguistic minority on the one hand, and the relationship with the state and the majority group on the other.

  8. National Tests and minorities

    DEFF Research Database (Denmark)

    Andreasen, Karen Egedal

    - and exclusion in both direct and in more indirect ways. Depending of its design and use it might also point to differences between pupils with references to categories such as clever, skilled, good, medium, average, below average, best etc.. These processes might be considered as problematic at the micro level...... in their orientation. In a policy perspective, the underlying motive may be a desire to evaluate and compare students’ academic development and performance as well as schools’ performance and goal attainment at the national level. National testing are based on the assumption that the tested pupils all speak the same...... language, and are often not adapted to the languages of minorities. However, regionally determined differences – for example, linguistic or cultural – often exhibit considerable influence over student performance in such national academic tests, with any such potential effects generally not considered...

  9. Multiculturalism and Minority Rights: West and East

    Directory of Open Access Journals (Sweden)

    Will Kymlicka

    2002-10-01

    Full Text Available Are Western models of multiculturalism and minority rights relevant for the post-Communist countries of Central and Eastern Europe? This article describes a range of Western models, and explores the social and political conditions that have led to their adoption in the West. It then considers various factors which might make the adoption of these models difficult in Eastern Europe, and considers the potential role of the international community in overcoming these obstacles.

  10. Evaluation of land surface model simulations of evapotranspiration over a 12 year crop succession: impact of the soil hydraulic properties

    Directory of Open Access Journals (Sweden)

    S. Garrigues

    2014-10-01

    Full Text Available Evapotranspiration has been recognized as one of the most uncertain term in the surface water balance simulated by land surface models. In this study, the SURFEX/ISBA-A-gs simulations of evapotranspiration are assessed at local scale over a 12 year Mediterranean crop succession. The model is evaluated in its standard implementation which relies on the use of the ISBA pedotransfer estimates of the soil properties. The originality of this work consists in explicitly representing the succession of crop cycles and inter-crop bare soil periods in the simulations and assessing its impact on the dynamic of simulated and measured evapotranspiration over a long period of time. The analysis focuses on key soil parameters which drive the simulation of evapotranspiration, namely the rooting depth, the soil moisture at saturation, the soil moisture at field capacity and the soil moisture at wilting point. The simulations achieved with the standard values of these parameters are compared to those achieved with the in situ values. The portability of the ISBA pedotransfer functions is evaluated over a typical Mediterranean crop site. Various in situ estimates of the soil parameters are considered and distinct parametrization strategies are tested to represent the evapotranspiration dynamic over the crop succession. This work shows that evapotranspiration mainly results from the soil evaporation when it is continuously simulated over a Mediterranean crop succession. The evapotranspiration simulated with the standard surface and soil parameters of the model is largely underestimated. The deficit in cumulative evapotranspiration amounts to 24% over 12 years. The bias in daily daytime evapotranspiration is −0.24 mm day−1. The ISBA pedotransfer estimates of the soil moisture at saturation and at wilting point are overestimated which explains most of the evapotranspiration underestimation. The overestimation of the soil moisture at wilting point causes the

  11. Evaluation of land surface model simulations of evapotranspiration over a 12 year crop succession: impact of the soil hydraulic properties

    Science.gov (United States)

    Garrigues, S.; Olioso, A.; Calvet, J.-C.; Martin, E.; Lafont, S.; Moulin, S.; Chanzy, A.; Marloie, O.; Desfonds, V.; Bertrand, N.; Renard, D.

    2014-10-01

    Evapotranspiration has been recognized as one of the most uncertain term in the surface water balance simulated by land surface models. In this study, the SURFEX/ISBA-A-gs simulations of evapotranspiration are assessed at local scale over a 12 year Mediterranean crop succession. The model is evaluated in its standard implementation which relies on the use of the ISBA pedotransfer estimates of the soil properties. The originality of this work consists in explicitly representing the succession of crop cycles and inter-crop bare soil periods in the simulations and assessing its impact on the dynamic of simulated and measured evapotranspiration over a long period of time. The analysis focuses on key soil parameters which drive the simulation of evapotranspiration, namely the rooting depth, the soil moisture at saturation, the soil moisture at field capacity and the soil moisture at wilting point. The simulations achieved with the standard values of these parameters are compared to those achieved with the in situ values. The portability of the ISBA pedotransfer functions is evaluated over a typical Mediterranean crop site. Various in situ estimates of the soil parameters are considered and distinct parametrization strategies are tested to represent the evapotranspiration dynamic over the crop succession. This work shows that evapotranspiration mainly results from the soil evaporation when it is continuously simulated over a Mediterranean crop succession. The evapotranspiration simulated with the standard surface and soil parameters of the model is largely underestimated. The deficit in cumulative evapotranspiration amounts to 24% over 12 years. The bias in daily daytime evapotranspiration is -0.24 mm day-1. The ISBA pedotransfer estimates of the soil moisture at saturation and at wilting point are overestimated which explains most of the evapotranspiration underestimation. The overestimation of the soil moisture at wilting point causes the underestimation of

  12. USAR recruiting success factors

    OpenAIRE

    Thomas, George W.; Kocher, Kathryn M.; Gandolfo, Robin Ragsdale

    1987-01-01

    This study attempts to identify attributes associated with successful recruiters, to evaluate existing data on recruiter performance and characteristics, and to develop a model to aid in the selection of personnel who are likely to become successful recruiters. Conventional multivariate statistical techniques have not proved adequate in identifying successful recruiters, largely because of the absence of reliable and valid measures of recruiter success. This study applies a relatively new met...

  13. Mentoring for minorities in mathematics and science. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Shamma, S.E.

    1998-05-01

    The University of West Florida received a grant from the US Department of Energy to initiate a program on mentoring for Minorities in Mathematics and Science. The purpose of the program was to develop interest of minority freshman and sophomore students in teaching mathematics and science and then have these students act as role models for grade school students, especially for minorities who are experiencing difficulties in science and mathematics education. Fifteen students, one more than what was budgeted, participated in the project.

  14. An Evaluation of the Adjusted DeLone and McLean Model of Information Systems Success; the case of financial information system in Ferdowsi University of Mashhad

    OpenAIRE

    Mohammad Lagzian; Shamsoddin Nazemi; Fatemeh Dadmand

    2012-01-01

    Assessing the success of information systems within organizations has been identified as one of the most critical subjects of information system management in both public and private organizations. It is therefore important to measure the success of information systems from the user's perspective. The purpose of the current study was to evaluate the degree of information system success by the adjusted DeLone and McLean’s model in the field financial information system (FIS) in an Iranian Univ...

  15. The Truth about Mentoring Minorities: Race Matters.

    Science.gov (United States)

    Thomas, David A.

    2001-01-01

    A 3-year study of mentoring patterns at 3 corporations reveals that whites and minorities follow distinct patterns of advancement and should be mentored in very different ways. Cross-race mentoring must acknowledge issues of negative stereotypes, role modeling, peer resentment, skepticism about intimacy, and network management. (JOW)

  16. The Truth about Mentoring Minorities: Race Matters.

    Science.gov (United States)

    Thomas, David A.

    2001-01-01

    A 3-year study of mentoring patterns at 3 corporations reveals that whites and minorities follow distinct patterns of advancement and should be mentored in very different ways. Cross-race mentoring must acknowledge issues of negative stereotypes, role modeling, peer resentment, skepticism about intimacy, and network management. (JOW)

  17. Successful amelioration of mitochondrial optic neuropathy using the yeast NDI1 gene in a rat animal model.

    Directory of Open Access Journals (Sweden)

    Mathieu Marella

    Full Text Available BACKGROUND: Leber's hereditary optic neuropathy (LHON is a maternally inherited disorder with point mutations in mitochondrial DNA which result in loss of vision in young adults. The majority of mutations reported to date are within the genes encoding the subunits of the mitochondrial NADH-quinone oxidoreductase, complex I. Establishment of animal models of LHON should help elucidate mechanism of the disease and could be utilized for possible development of therapeutic strategies. METHODOLOGY/PRINCIPAL FINDINGS: We established a rat model which involves injection of rotenone-loaded microspheres into the optic layer of the rat superior colliculus. The animals exhibited the most common features of LHON. Visual loss was observed within 2 weeks of rotenone administration with no apparent effect on retinal ganglion cells. Death of retinal ganglion cells occurred at a later stage. Using our rat model, we investigated the effect of the yeast alternative NADH dehydrogenase, Ndi1. We were able to achieve efficient expression of the Ndi1 protein in the mitochondria of all regions of retinal ganglion cells and axons by delivering the NDI1 gene into the optical layer of the superior colliculus. Remarkably, even after the vision of the rats was severely impaired, treatment of the animals with the NDI1 gene led to a complete restoration of the vision to the normal level. Control groups that received either empty vector or the GFP gene had no effects. CONCLUSIONS/SIGNIFICANCE: The present study reports successful manifestation of LHON-like symptoms in rats and demonstrates the potential of the NDI1 gene therapy on mitochondrial optic neuropathies. Our results indicate a window of opportunity for the gene therapy to be applied successfully after the onset of the disease symptoms.

  18. From Minority Game to Black & Scholes pricing

    CERN Document Server

    Ortisi, Matteo

    2012-01-01

    In this paper we study the continuum time dynamics of a stock in a market where agents behavior is modeled by a Minority Game with number of strategies for each agent S=2 and "fake" market histories. The dynamics derived is a generalized geometric Brownian motion; from the Black&Scholes formula the calibration of the Minority Game, by means of the game parameter $ \\sigma^{2}$, on the European options on DAX Index market is performed. An "$ (\\alpha,\\sigma^{2})$ -matrix" containing, given options' moneyness and maturities, values of the parameters $\\alpha$ and $ \\sigma^{2}$ that make the theoretical option price agree with the market price is constructed. We conclude that the asymmetric phase of the Minority Game with $\\alpha$ close to $\\alpha_c$ is coherent with options implied volatility market.

  19. A Successful Model

    Institute of Scientific and Technical Information of China (English)

    LI LI

    2010-01-01

    @@ Shenzhen, a southern coastal city in Guangdong Province, neigh-boring Hong Kong, has marked its 30th anniversary as China's first economic development zone. Chinese President Hu Jintao told a celebratory rally held in Shenzhen on September 6 that the Central Government will always support the country's special economic zones (SEZs) embarking on "brave exploration" in their roles as "first-movers."

  20. A Successful Model

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    A special economic zone’s three-decade economic miracle is celebrated shenzhen, a southern coastal cityin Guangdong Province, neighboring Hong Kong, has markedits 30th anniversary as China’s first economic development zone.

  1. The Effects of Transformational Leadership and Mediating Factors on the Organizational Success Using Structural Equation Modeling: A Case Study.

    Science.gov (United States)

    Ravangard, Ramin; Karimi, Sakine; Farhadi, Payam; Sajjadnia, Zahra; Shokrpour, Nasrin

    This study was undertaken to determine the effects of transformational leadership (TL) and mediating factors on organizational success (OS) from the administrative, financial, and support employees' perspective in teaching hospitals affiliated with Shiraz University of Medical Sciences using structural equation modeling. Three hundred administrative and financial employees were selected, using stratified sampling proportional to size and simple random sampling. Data were collected using 5 questionnaires and analyzed using SPSS 21.0 and Lisrel 8.5 through Pearson correlation coefficient and path analysis and confirmatory factor analysis methods. Results showed that TL had significant positive effects on the 3 mediating factors, including organizational culture (t = 15.31), organizational citizenship behavior (OCB) (t = 10.06), and social capital (t = 10.25). Also, the organizational culture (t = 2.26), OCB (t = 3.48), and social capital (t = 7.41) had significant positive effects on OS. According to the results, TL had an indirect effect on OS. Therefore, organizations can achieve more success by strengthening organizational culture, OCB, and social capital through using transformational leadership style. Therefore, in order to increase OS, the following recommendations are made: supporting and encouraging new ideas in the organization, promoting teamwork, strengthening intergroup and intragroup relationships, planning to strengthen and enrich the social and organizational culture, considering the promotion of social capital in the employee training, establishing a system to give rewards to the employees performing extra-role activities, providing a suitable environment for creative employees, and so on.

  2. Prediction of success for polymerase chain reactions using the Markov maximal order model and support vector machine.

    Science.gov (United States)

    Li, Chun; Yang, Yan; Fei, Wenchao; He, Ping-an; Yu, Xiaoqing; Zhang, Defu; Yi, Shumin; Li, Xuepeng; Zhu, Jin; Wang, Changzhong; Wang, Zhifu

    2015-03-21

    Polymerase chain reaction (PCR) is hailed as one of the monumental scientific techniques of the twentieth century, and has become a common and often indispensable technique in many areas. However, researchers still frequently find some DNA templates very hard to amplify with PCR, although many kinds of endeavors were introduced to optimize the amplification. In fact, during the past decades, the experimental procedure of PCR was always the focus of attention, while the analysis of a DNA template, the PCR experimental subject itself, was almost neglected. Up to now, nobody can certainly identify whether a fragment of DNA can be simply amplified using conventional Taq DNA polymerase-based PCR protocol. Characterizing a DNA template and then developing a reliable and efficient method to predict the success of PCR reactions is thus urgently needed. In this study, by means of the Markov maximal order model, we construct a 48-D feature vector to represent a DNA template. Support vector machine (SVM) is then employed to help evaluate PCR result. To examine the anticipated success rates of our predictor, jackknife cross-validation test is adopted. The overall accuracy of our approach arrives at 93.12%, with the sensitivity, specificity, and MCC of 94.68%, 91.58%, and 0.863%, respectively.

  3. Effective Strategies for District Leadership to Create Successful Inclusion Models: Special Education Directors and School Reform in Context of Least Restrictive Environment

    Science.gov (United States)

    Bublitz, Gregory

    2016-01-01

    This qualitative mixed methods study explored how Special Education Directors transformed and maintained a successful inclusion model throughout their district. The study identified leadership strategies and inclusive behaviors utilized by Special Education Directors who have successfully transformed their district into inclusive school districts.…

  4. Toxicity assessment of boron (B) by Lemna minor L. and Lemna gibba L. and their possible use as model plants for ecological risk assessment of aquatic ecosystems with boron pollution.

    Science.gov (United States)

    Gür, Nurcan; Türker, Onur Can; Böcük, Harun

    2016-08-01

    As many of the metalloid-based pollutants, the boron (B) toxicity issues have aroused more and more global attentions, especially concerning drinking water sources which flow through boron-rich areas. Therefore, feasible and innovative approaches are required in order to assess B toxicity in aquatic ecosystems. In this study, the toxic effects of B on Lemna minor L. and Lemna gibba L. were investigated using various endpoints including number of fronds, growth rates, dry biomass and antioxidants enzymatic activities. Lemna species were exposed to B concentrations of 2 (control), 4, 8, 16, 32, 64 and 128 mg L(-1) for a test period of 7 days. The results demonstrated that plant growth was significantly reduced when the B concentration reached 16 mg L(-1). Furthermore, our results also concluded that among the antioxidative enzymes, SOD, APX and GPX can serve as important biomarkers for B-rich environment. The present results suggested that L. minor and L. gibba are very useful model plants for phytoremediation of low-B contaminated wastewater and they are also suitable options for B biomonitoring due to high phototoxic sensitivity against B. In this respect, the scientific insight of the present study is to fill the gaps in the research about the use of L. minor and L. gibba in ecotoxicological research associated with B toxicity.

  5. Comparison of eye-tracking success in laser in situ keratomileusis after flap creation with 2 femtosecond laser models.

    Science.gov (United States)

    Luengo Gimeno, Federico; Chan, Cordelia M L; Li, Lim; Tan, Donald T H; Mehta, Jodhbir S

    2011-03-01

    To determine the efficiency of an eye tracker after laser in situ keratomileusis (LASIK) flap creation with 1 of 2 femtosecond laser models. Tertiary referral center, Singapore National Eye Center, Singapore. Randomized clinical trial. The LASIK flap was created with an IntraLase (Group A) or a VisuMax (Group B) femtosecond laser. An Advanced Control Eye Tracker was initiated 3 times to obtain iris recognition. Eye tracking was considered successful if the eye movements could be followed despite the presence or absence of an opaque bubble layer (OBL). Univariate-multivariate logistic regression analysis was performed. Preoperatively, the mean values (ranges) of the 87 eyes were sphere, -5.64 diopters (D) ± 2.17 (SD) (-9.75 to -0.25 D); cylinder 1.65 ± 1.63 D (-3.75 to 0.00 D); optical zone, 6.34 ± 0.20 mm (5.6 to 7.0 mm); keratometry, 43.48 ± 1.32 D (40.1 to 42.8 D); flap thickness, 109.30 + 5.21 μm (90 to 115 μm). Eye tracking was successful in 38 (90.5%) of 42 eyes in Group A and 43 (95.6%) of 45 eyes in Group B. No specific type of OBL was seen in either group. The LASIK was completed in all eyes. There was a statistically significant association between positive tracking and a smaller optical zone (P=.03). There were no statistically significant differences in eye tracking between the 2 femtosecond lasers. Eye tracking was achieved in more than 90% of cases after LASIK flap creation with 1 of 2 femtosecond laser models, even in the presence of an OBL. Copyright © 2011 ASCRS and ESCRS. Published by Elsevier Inc. All rights reserved.

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

    Science.gov (United States)

    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.

  7. Design and Simulation of a 6-Bit Successive-Approximation ADC Using Modeled Organic Thin-Film Transistors

    Directory of Open Access Journals (Sweden)

    Huyen Thanh Pham

    2016-01-01

    Full Text Available We have demonstrated a method for using proper models of pentacene P-channel and fullerene N-channel thin-film transistors (TFTs in order to design and simulate organic integrated circuits. Initially, the transistors were fabricated, and we measured their main physical and electrical parameters. Then, these organic TFTs (OTFTs were modeled with support of an organic process design kit (OPDK added in Cadence. The key specifications of the modeled elements were extracted from measured data, whereas the fitting ones were elected to replicate experimental curves. The simulating process proves that frequency responses of the TFTs cover all biosignal frequency ranges; hence, it is reasonable to deploy the elements to design integrated circuits used in biomedical applications. Complying with complementary rules, the organic circuits work properly, including logic gates, flip-flops, comparators, and analog-to-digital converters (ADCs as well. The proposed successive-approximation-register (SAR ADC consumes a power of 883.7 µW and achieves an ENOB of 5.05 bits, a SNR of 32.17 dB at a supply voltage of 10 V, and a sampling frequency of about 2 KHz.

  8. Comparison on models for genetic evaluation of non-return rate and success in first insemination of the Danish Holstein cow

    DEFF Research Database (Denmark)

    Sun, C; Su, G

    2010-01-01

    The aim of is study was to compare a linear Gaussian model with logit model and probit model for genetic evaluation of non-return rate within 56 d after first-insemination (NRR56) and success in first insemination (SFI). The whole dataset used in the analysis contained 471,742 records from...

  9. A Model of Successful Work Experience for Employees Who Are Visually Impaired: The Results of a Study

    Science.gov (United States)

    Golub, Dawn B.

    2006-01-01

    This study explored the factors that contribute to a successful work experience for employees who are visually impaired from the perspective of employers. The employers who were interviewed emphasized the dual responsibility that employees have to empower their own success and that employers have to enable the employees' success. In addition, an…

  10. Minority Recruitment and Retention for Universities: Bilingual Special Education Faculty

    Science.gov (United States)

    Brice, Alejandro E.

    2012-01-01

    Recruitment and retention of minority faculty in bilingual special education is a perilous task. Research has shown that minority faculty/teachers are able to provide emotional support, mentor students, serve as role models, create a positive climate, provide diverse views, increase collaboration among faculty and teachers, and work with…

  11. Modeling aeolian transport in response to succession, disturbance and future climate: Dynamic long-term risk assessment for contaminant redistribution

    Science.gov (United States)

    Breshears, D.D.; Kirchner, T.B.; Whicker, J.J.; Field, J.P.; Allen, C.D.

    2012-01-01

    Aeolian sediment transport is a fundamental process redistributing sediment, nutrients, and contaminants in dryland ecosystems. Over time frames of centuries or longer, horizontal sediment fluxes and associated rates of contaminant transport are likely to be influenced by succession, disturbances, and changes in climate, yet models of horizontal sediment transport that account for these fundamental factors are lacking, precluding in large part accurate assessment of human health risks associated with persistent soil-bound contaminants. We present a simple model based on empirical measurements of horizontal sediment transport (predominantly saltation) to predict potential contaminant transport rates for recently disturbed sites such as a landfill cover. Omnidirectional transport is estimated within vegetation that changes using a simple Markov model that simulates successional trajectory and considers three types of short-term disturbances (surface fire, crown fire, and drought-induced plant mortality) under current and projected climates. The model results highlight that movement of contaminated soil is sensitive to vegetation dynamics and increases substantially (e.g., > fivefold) when disturbance and/or future climate are considered. The time-dependent responses in horizontal sediment fluxes and associated contaminant fluxes were sensitive to variability in the timing of disturbance, with longer intervals between disturbance allowing woody plants to become dominant and crown fire and drought abruptly reducing woody plant cover. Our results, which have direct implications for contaminant transport and landfill management in the specific context of our assessment, also have general relevance because they highlight the need to more fully account for vegetation dynamics, disturbance, and changing climate in aeolian process studies. ?? 2011.

  12. Linguistic Landscape and Minority Languages

    Science.gov (United States)

    Cenoz, Jasone; Gorter, Durk

    2006-01-01

    This paper focuses on the linguistic landscape of two streets in two multilingual cities in Friesland (Netherlands) and the Basque Country (Spain) where a minority language is spoken, Basque or Frisian. The paper analyses the use of the minority language (Basque or Frisian), the state language (Spanish or Dutch) and English as an international…

  13. Reproductive health education model for female college students from ethnic minorities%少数民族女大学生生殖健康教育模式研究

    Institute of Scientific and Technical Information of China (English)

    曲红梅; 魁发瑞; 袁晓梅; 周宾堂

    2013-01-01

    目的:探讨少数民族女大学生生殖健康教育模式.方法:采用匿名自填式问卷,对450名女大学生进行调查.结果:教育前后对生理的认识、避孕知识、怀孕流产,性病艾滋病知识有大幅度的提高,对婚前性行为、同居、性行为中使用避孕套的态度也发生了变化,对教学目标与教学理念赞同的占80%,教学内容85.6%,教学计划76.5%,教学手段75.7%.结论:在少数民族女大学生中开展生殖健康教育采取理论授课+咨询的模式是有效的.%Objectives: To explore the reproductive health education model for female undergraduates from ethnic minorities. Methods: An anonymous questionnaire survey was conducted among 450 minority female college students. Results: After receiving relevant education, they have an obvious improvement in the knowledge about physiology, contraception, pregnancy, a-bortion, venereal disease and AIDS. Their attitudes towards pre martial sex, cohabitation and the usage of condoms changed. 80% of female undergraduate agreed with the education goal and education conception. 85.6% agreed with the teaching content, 76. 5% agreed with the teaching plan and 75. 7% agreed with the teaching method. Conclusion:Education and consulting model was effective in reproductive health education for minority female.

  14. Success rate evaluation of clinical governance implementation in teaching hospitals in Kerman (Iran) based on nine steps of Karsh's model.

    Science.gov (United States)

    Vali, Leila; Mastaneh, Zahra; Mouseli, Ali; Kardanmoghadam, Vida; Kamali, Sodabeh

    2017-07-01

    One of the ways to improve the quality of services in the health system is through clinical governance. This method aims to create a framework for clinical services providers to be accountable in return for continuing improvement of quality and maintaining standards of services. To evaluate the success rate of clinical governance implementation in Kerman teaching hospitals based on 9 steps of Karsh's Model. This cross-sectional study was conducted in 2015 on 94 people including chief executive officers (CEOs), nursing managers, clinical governance managers and experts, head nurses and nurses. The required data were collected through a researcher-made questionnaire containing 38 questions with three-point Likert Scale (good, moderate, and weak). The Karsh's Model consists of nine steps including top management commitment to change, accountability for change, creating a structured approach for change, training, pilot implementation, communication, feedback, simulation, and end-user participation. Data analysis using descriptive statistics and Mann-Whitney-Wilcoxon test was done by SPSS software version 16. About 81.9 % of respondents were female and 74.5 have a Bachelor of Nursing (BN) degree. In general, the status of clinical governance implementation in studied hospitals based on 9 steps of the model was 44 % (moderate). A significant relationship was observed among accountability and organizational position (p=0.0012) and field of study (p=0.000). Also, there were significant relationships between structure-based approach and organizational position (p=0.007), communication and demographic characteristics (p=0.000), and end-user participation with organizational position (p=0.03). Clinical governance should be implemented by correct needs assessment and participation of all stakeholders, to ensure its enforcement in practice, and to enhance the quality of services.

  15. Minorities in Nursing Education: Using Smartphones.

    Science.gov (United States)

    Day-Black, Crystal

    2015-01-01

    The use of Smartphones in teaching and learning is transforming academia and affords a shift in paradigm for Historically Black Universities and Colleges (HBCUs) nurse programs for the 21st century. Smartphone use in academic settings has gained popularity among college students. For minority and low-income students, this handheld device may be the only source to real-time Internet-accessible information, and in anchoring social, vocational, and academic habits. Nursing faculty acceptance of smartphones in the classroom assists in clinical and simulation learning experiences. These experiences are keys to integration of successful smartphone initiatives in HBCU nursing programs.

  16. 新时期我国朝鲜族三语教育政策及教育现状研究%Language Policy and Models of Trilingual Education in Korean Ethnic Minority Regions of China in the New Era

    Institute of Scientific and Technical Information of China (English)

    崔雪波

    2015-01-01

    This research attempts to offer a holistic and descriptive account of policies and models of trilingual-ism and trilingual education of Korean ethnic minority during the last 60 years. Language policy changes have led to the introduction of Chinese and later on English language teaching and learning in Korean primary schools. These re-forms pose particular challenges to communities in Korean ethnic minority areas, where Korean, Chinese and English often compete with each other in the school curriculum, and the students are expected to be fluent speakers in all of the three languages. For stakeholders in minority language education, it is essential to be aware of the significance of developing and promoting strong models of trilingual education, and to explore the favorable environment for the good overall performance of the trilinguals in the three languages.The study involves extensive and intensive research com-prising investigations into primary and secondary school-level practices, policies and perceptions relating to trilin-gualism in Korean ethnic minority regions in China. Using first-hand data collected, the research attempts to examine language policies and curricula, as well as language allocation in the classroom, and analyze them in their specific historical, socio-political, demographical, economic, geographical and cultural contexts. The research findings will give the stakeholders of trilingual education the clear guideline on how to provide favorable environment for trilingual minorities from the macro, meso and micro levels. In addition, the research findings will shed a light in the field of tri-lingual assessment on the criteria to assess trilingual proficiency. Furthermore, the study will propose a desirable model of trilingual education for Korean ethnic minority respectively in primary and secondary schools.%本研究全面回顾过去60年来延边州朝鲜族三语教育政策的制定及教育模式的形成过程。延边州语言政策

  17. Persistence among Minority STEM Majors: A Phenomenological Study

    Science.gov (United States)

    Williams-Watson, Stacey

    The United States needs to increase the number of science, technology, engineering, and math (STEM) graduates to remain competitive in the global market and maintain national security. Minority students, specifically African-American and Hispanic, are underrepresented in STEM fields. As the minority population continues to grow it is essential that higher education institutions improve minority students' persistence in STEM education. This study examined the problem of minority students' lack of persistence in STEM programs. The purpose of this qualitative transcendental phenomenological study was to describe the lived experiences that minority students perceived as contributing to their persistence in STEM. The central research question was: What are the lived experiences of minority STEM students that have contributed to their persistence in a STEM program? The sub-questions were: a) What led participants to majors in STEM?; b) What contributed to students' success and persistence in STEM?; and c) What advice do students have to offer? The researcher interviewed 12 minority STEM students and uncovered 10 themes that described the lived experiences of minority students' persistence in STEM programs. The themes were 1) Childhood experiences and interests; 2) Positive educational experiences in secondary school; 3) Self- motivation; 4) Positive experiences with professors; 5) Family encouragement and values; 6) Lack of minorities; 7) Lack of educational preparation; 8) The need for financial assistance; 9) Clubs and organizations; and 10) Friends within the major. The significance of these findings is the potential to produce changes in curricula, programs, and retention methods that may improve the persistence of minority students in STEM programs.

  18. Artificial cervical vertebra and intervertebral complex replacement through the anterior approach in animal model: a biomechanical and in vivo evaluation of a successful goat model.

    Directory of Open Access Journals (Sweden)

    Jie Qin

    Full Text Available This was an in vitro and in vivo study to develop a novel artificial cervical vertebra and intervertebral complex (ACVC joint in a goat model to provide a new method for treating degenerative disc disease in the cervical spine. The objectives of this study were to test the safety, validity, and effectiveness of ACVC by goat model and to provide preclinical data for a clinical trial in humans in future. We designed the ACVC based on the radiological and anatomical data on goat and human cervical spines, established an animal model by implanting the ACVC into goat cervical spines in vitro prior to in vivo implantation through the anterior approach, and evaluated clinical, radiological, biomechanical parameters after implantation. The X-ray radiological data revealed similarities between goat and human intervertebral angles at the levels of C2-3, C3-4, and C4-5, and between goat and human lordosis angles at the levels of C3-4 and C4-5. In the in vivo implantation, the goats successfully endured the entire experimental procedure and recovered well after the surgery. The radiological results showed that there was no dislocation of the ACVC and that the ACVC successfully restored the intervertebral disc height after the surgery. The biomechanical data showed that there was no significant difference in range of motion (ROM or neural zone (NZ between the control group and the ACVC group in flexion-extension and lateral bending before or after the fatigue test. The ROM and NZ of the ACVC group were greater than those of the control group for rotation. In conclusion, the goat provides an excellent animal model for the biomechanical study of the cervical spine. The ACVC is able to provide instant stability after surgery and to preserve normal motion in the cervical spine.

  19. Artificial Cervical Vertebra and Intervertebral Complex Replacement through the Anterior Approach in Animal Model: A Biomechanical and In Vivo Evaluation of a Successful Goat Model

    Science.gov (United States)

    Qin, Jie; He, Xijing; Wang, Dong; Qi, Peng; Guo, Lei; Huang, Sihua; Cai, Xuan; Li, Haopeng; Wang, Rui

    2012-01-01

    This was an in vitro and in vivo study to develop a novel artificial cervical vertebra and intervertebral complex (ACVC) joint in a goat model to provide a new method for treating degenerative disc disease in the cervical spine. The objectives of this study were to test the safety, validity, and effectiveness of ACVC by goat model and to provide preclinical data for a clinical trial in humans in future. We designed the ACVC based on the radiological and anatomical data on goat and human cervical spines, established an animal model by implanting the ACVC into goat cervical spines in vitro prior to in vivo implantation through the anterior approach, and evaluated clinical, radiological, biomechanical parameters after implantation. The X-ray radiological data revealed similarities between goat and human intervertebral angles at the levels of C2-3, C3-4, and C4-5, and between goat and human lordosis angles at the levels of C3-4 and C4-5. In the in vivo implantation, the goats successfully endured the entire experimental procedure and recovered well after the surgery. The radiological results showed that there was no dislocation of the ACVC and that the ACVC successfully restored the intervertebral disc height after the surgery. The biomechanical data showed that there was no significant difference in range of motion (ROM) or neural zone (NZ) between the control group and the ACVC group in flexion-extension and lateral bending before or after the fatigue test. The ROM and NZ of the ACVC group were greater than those of the control group for rotation. In conclusion, the goat provides an excellent animal model for the biomechanical study of the cervical spine. The ACVC is able to provide instant stability after surgery and to preserve normal motion in the cervical spine. PMID:23300816

  20. On entropy, financial markets and minority games

    Science.gov (United States)

    Zapart, Christopher A.

    2009-04-01

    The paper builds upon an earlier statistical analysis of financial time series with Shannon information entropy, published in [L. Molgedey, W. Ebeling, Local order, entropy and predictability of financial time series, European Physical Journal B-Condensed Matter and Complex Systems 15/4 (2000) 733-737]. A novel generic procedure is proposed for making multistep-ahead predictions of time series by building a statistical model of entropy. The approach is first demonstrated on the chaotic Mackey-Glass time series and later applied to Japanese Yen/US dollar intraday currency data. The paper also reinterprets Minority Games [E. Moro, The minority game: An introductory guide, Advances in Condensed Matter and Statistical Physics (2004)] within the context of physical entropy, and uses models derived from minority game theory as a tool for measuring the entropy of a model in response to time series. This entropy conditional upon a model is subsequently used in place of information-theoretic entropy in the proposed multistep prediction algorithm.