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Sample records for repair career ladder

  1. Clinical career ladders: Hamot Medical Center.

    Science.gov (United States)

    Meyer, J D; Chrymko, M M; Kelly, W N

    1989-11-01

    The clinical career ladder program for pharmacists at Hamot Medical Center (HMC), a 500-bed not-for-profit community teaching hospital, is described. Between 1980 and 1989 a career ladder at HMC evolved from an idea to an established program with parallel administrative, business, and clinical tracks. The development of the career ladder mirrored the growth of clinical programs and the diversification of pharmaceutical services. A formal plan for a clinical ladder was developed when the first satellite pharmacy opened in 1984. An entry-level pharmacist at HMC starts with a six-month period during which he or she learns the drug distribution system and prepares for several certification tests. The employee is then promoted to staff pharmacist. Staff pharmacists are promoted to clinical pharmacist II (CP II) upon meeting requirements for competence in a broad range of clinical skills and knowledge. Candidates for the position of clinical pharmacist specialist (CP I) must have either a minimum of three years of experience as a CP II or a Pharm.D. degree and have established an area of clinical expertise. A CP I can progress to assistant and associate director positions as vacancies occur. The clinical ladder has enhanced job satisfaction and encouraged the development of clinical practitioners who provide improved care. Problems have included time constraints, competition for positions, and management of incentives. A parallel career ladder program with a clinical track has enhanced the growth of pharmacy practice at HMC and improved the quality of pharmaceutical care.

  2. 5 CFR 335.104 - Eligibility for career ladder promotion.

    Science.gov (United States)

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Eligibility for career ladder promotion... REGULATIONS PROMOTION AND INTERNAL PLACEMENT General Provisions § 335.104 Eligibility for career ladder promotion. No employee shall receive a career ladder promotion unless his or her current rating of...

  3. Avionics Instrument Systems Specialist Career Ladder: AFSCs 32531, 32551, 31571, and 32591. Occupational Survey Report.

    Science.gov (United States)

    Air Force Occupational Measurement Center, Lackland AFB, TX.

    The Avionics Instrument Systems career ladder (AFSC 325X1) provides flight line and shop maintenance training on aircraft instrument systems, electromechancial instruments, components, and test equipment. Duties involve inspecting, removing, installing, repairing, operating, troubleshooting, overhauling, and modifying systems such as flight and…

  4. Corrosion Control Specialist Career Ladder AFSC 53530, 53550, 53570, and 53690. Occupational Survey Report.

    Science.gov (United States)

    Air Force Occupational Measurement Center, Lackland AFB, TX.

    The report describes the results of a detailed occupational survey of the corrosion control career ladder. Responses to a 457-task, time rating inventory from 1,015 personnel (representing 64 percent of the career field) were analyzed to produce seven specific findings and the career ladder structure. The career ladder includes a variety of jobs…

  5. Corrosion Control Specialist Career Ladder AFSC 53530, 53550, 53570, and 53690. Occupational Survey Report.

    Science.gov (United States)

    Air Force Occupational Measurement Center, Lackland AFB, TX.

    The report describes the results of a detailed occupational survey of the corrosion control career ladder. Responses to a 457-task, time rating inventory from 1,015 personnel (representing 64 percent of the career field) were analyzed to produce seven specific findings and the career ladder structure. The career ladder includes a variety of jobs…

  6. Climbing the Ladder: Experience with Developing a Large Group Genetic Counselor Career Ladder at Children's National Health System.

    Science.gov (United States)

    Kofman, Laura; Seprish, Mary Beth; Summar, Marshall

    2016-08-01

    Children's National Health System (CNHS) is a not-for-profit pediatric hospital that employs around twenty genetic counselors in a range of specialties, including clinical pediatric, neurology, fetal medicine, research, and laboratory. CNHS lacked a structured system of advancement for their genetic counselors; therefore, a formal career ladder was proposed by the genetic counselors based on years of experience, responsibility, and job performance. This career ladder utilized monetary, academic, and seniority incentives to encourage advancement and continue employment at CNHS. The creation and ultimate approval of the career ladder required direct input from genetic counselors, Department Chairs, and Human Resource personnel. The establishment of a genetic counselor career ladder at CNHS will hopefully benefit the profession of genetic counselors as a whole and allow other facilities to create and maintain their own career ladder to meet the needs of the growing, competitive, field of genetic counseling.

  7. Space Systems Equipment Maintenance Career Ladder AFSC-309X0.

    Science.gov (United States)

    1986-09-01

    26 ELECTRONICS PRINCIPLES INVENTORY (EPI) .... ............... .... 31 JOB SATISFACTION ANALYSIS ........... ........... . . . . 32...the-job training) are ade- quately meeting the needs of the career ladder. ELECTRONICS PRINCIPLES INVENTORY (EPI) - An additional source of information...for AFSC 309X0 training developers is the EPI. The EPI is a 1,366 item, knowledge-based inventory which identifies the range of electronics principles personnel

  8. Undergraduate Education: An Essential Rung on the Rehabilitation Career Ladder

    Science.gov (United States)

    Evenson, Tom; Holloway, Linda

    2007-01-01

    This article presents the historical pertinence of undergraduate education to developing a career ladder within the field of vocational rehabilitation. Support for the relevance is presented through the results of an investigation of baccalaureate-level competence and preparation as perceived by graduates of rehabilitation services programs. Job…

  9. Evaluation through research of a three-track career ladder program for registered nurses.

    Science.gov (United States)

    Korman, Carol; Eliades, Aris Beoglos

    2010-01-01

    A descriptive study design was employed to survey registered nurse participants in a career ladder program comprising of three tracks: clinical, education, and management. Findings indicate that participation allows nurses of varying education preparation and roles to demonstrate professional development. Implications for staff development include efficacy of the online survey technique, provision of a reliable tool to evaluate a career ladder, and evaluation of a career ladder that includes the staff development educator.

  10. Climb the Green Ladder Make Your Company and Career More Sustainable

    CERN Document Server

    Fetzer, Amy V

    2009-01-01

    Want to make your workplace more sustainable, get ahead in your career and improve your reputation?. Want to help your company or organisation save money, boost profits and improve its brand?. Whatever your level or industry, from sales and management to government and teaching, Climb The Green Ladder offers practical knowledge to help you make a difference. Whether you'd like to transform your entire company or just get your colleagues recycling, Climb The Green Ladder will provide you with the tools and motivation to move your company (and career) towards a more successful, more sustainable

  11. Healthcare organization-education partnerships and career ladder programs for health care workers.

    Science.gov (United States)

    Dill, Janette S; Chuang, Emmeline; Morgan, Jennifer C

    2014-12-01

    Increasing concerns about quality of care and workforce shortages have motivated health care organizations and educational institutions to partner to create career ladders for frontline health care workers. Career ladders reward workers for gains in skills and knowledge and may reduce the costs associated with turnover, improve patient care, and/or address projected shortages of certain nursing and allied health professions. This study examines partnerships between health care and educational organizations in the United States during the design and implementation of career ladder training programs for low-skill workers in health care settings, referred to as frontline health care workers. Mixed methods data from 291 frontline health care workers and 347 key informants (e.g., administrators, instructors, managers) collected between 2007 and 2010 were analyzed using both regression and fuzzy-set qualitative comparative analysis (QCA). Results suggest that different combinations of partner characteristics, including having an education leader, employer leader, frontline management support, partnership history, community need, and educational policies, were necessary for high worker career self-efficacy and program satisfaction. Whether a worker received a wage increase, however, was primarily dependent on leadership within the health care organization, including having an employer leader and employer implementation policies. Findings suggest that strong partnerships between health care and educational organizations can contribute to the successful implementation of career ladder programs, but workers' ability to earn monetary rewards for program participation depends on the strength of leadership support within the health care organization.

  12. Fix-It Careers: Jobs in Repair

    Science.gov (United States)

    Torpey, Elka Maria

    2010-01-01

    From auto mechanic to HVAC technicians, many occupations require repair skills. For jobseekers with the right skills, there are many advantages to a repair career. Repair work provides millions of jobs throughout the United States. Wages are often higher than average. And in many occupations, the employment outlook is bright. Plus, most repair…

  13. Careers Canada. Volume 3, Mechanical Repair Occupations.

    Science.gov (United States)

    Department of Manpower and Immigration, Ottawa (Ontario).

    This pamphlet, published by the Canadian Department of Manpower and Immigration, is the third of a Careers-Canada series and describes careers in mechanical repair occupations. The pamphlet is divided into eight major sections: (1) history and importance; (2) fields of work; (3) nature of work (this section is subdivided into automotive repair…

  14. Using career ladders to motivate and retain employees: an implementation success story.

    Science.gov (United States)

    Garletts, Joseph A

    2002-01-01

    In October 2000, Phoenix-based Sonora Quest Laboratories, LLC (SQL), commissioned The Gelfond Group to survey SQL employees. Responding to negative survey scores, SQL developed and implemented an entry-level career ladder for line staff of the specimen management/referral testing department. The program was piloted in February 2001, and was implemented fully shortly thereafter. The ladder was designed to provide job enrichment opportunities through company-conducted training and advancement provisions. It contained requirements for productivity and quality of work performed in addition to increasingly rigorous training and competency documentation. Employees were accountable for their own advancement and for ensuring that all documentation was complete. Advancement was automatic once requirements were completed. Pay increases accompanied each advancement on a predetermined scale. At the end of 12 months, employee turnover dropped from 39% to less than 20% annually. Both productivity and morale improved, and results on a second employee survey indicated dramatic improvement in five key areas. The career ladder concept has been replicated successfully in several other departments, including phlebotomy, and a six-tiered ladder is under development for the clinical laboratory. It will encompass CLA, MLT, and MT positions from entry level to technical coordinator.

  15. Automatic Tracking Radar Career Ladder, AFSC-303X3. Electronics Principles Inventory (EPI).

    Science.gov (United States)

    1981-02-01

    81 UNCLASSIFIED NL mhhmI/I/II///IEEIIIIEIIIIIEE EIIIIEEEEIIIII UNITED STATES AIR FORCE ELECTRONICS PRINCIPLES INVENTORY (EPI),., / b AUTOMATIC...presents the preliminary results of an Air Force Electronics Principles Survey of the Automatic Tracking Radar career ladder (AFSC 303X3). The project was...undertaken at the request of Mr. James R. Haupt, Training Manager, Keesler AFB, MS. Authority for conducting electronics principles inventories is

  16. Bioenvironmental Engineering and Environmental Medicine Career Ladders (AFS 907X0 and 908X0).

    Science.gov (United States)

    1985-12-01

    cine career ladder complete a training program designed for entry level personnel. This program is devided into two parts, with an 8-week course...perform a great number of sanitary support functions. They perform an average of 108 tasks. Common tasks include: prepare AF Forms 977 (Facility...TE) data are available to assist in making various decisions about the adequacy of the STS. There is no pattern of great overlap identified between

  17. Short-term contracts: Descending the career ladder

    Science.gov (United States)

    Griffin, Elizabeth

    2002-12-01

    Elizabeth Griffin brings a personal insight to the hurdles that women seeking a scientific career face, arguing that the only gender differences are those of attitude, tradition and style. The policy of employing some but not all academic researchers through short-term contracts is highly divisive, in that it creates a two-tier system not only of opportunities and expectations but also of personal worth and value. Far more women than men are trapped in these career cul-de-sacs, and a seriously large fraction is unable to stay in research until retirement. It is the employment policy that is at fault, not the potential of the researchers or the quality of their research.

  18. OCCUPATIONAL SURVEY OF THE PREVENTIVE MEDICINE CAREER LADDER 907X0. VOLUME I.

    Science.gov (United States)

    Preventive Medicine Career Ladder, and consisting of 275 tasks grouped under 16 duty categories, was administered to 381 airmen in 14 major air commands. Incumbents of all skill levels completed a background information section and rated on a 7-point scale relative time spent on tasks. The airmen also indicated on a 7-point scale amount of work experience on each task compared with other tasks performed. Job descriptions are presented for 32 groups selected according to background information variables. Included are 8 specialty groups, 10 groups with differing lengths

  19. Television Equipment Repair Career Ladder, AFSC 304X5

    Science.gov (United States)

    1989-01-01

    publica - tion. The survey data will also impact current CDC and POI revision efforts. / B kackqr6urid 0 . . According to AFR 39-1 Specialty Descriptions...r_ m LUJ =W(AV LU LUZ =39LU0 C xUL -< M =LU UW MUL--J -- " 0- F- F-«E-4 :::- C W::3 0 =:LU::puC)W :>: C< L Uɘ LUJ ) == L m W ==D = (a 0A O..<. 0 C

  20. To Reach the First Rung and Higher: Building Healthcare Career Ladder Opportunities for Low-Skilled, Disadvantaged Adults

    Science.gov (United States)

    Chisman, Forrest P.; Spangenberg, Gail

    2005-01-01

    This paper is based on various Council for Advancement of Adult Literacy (CAAL) activities including in-depth review of six exemplary career ladder programs offered in various institutional settings: a union, a hospital, a community-based organization (CBO), and three community colleges in partnership with an array of medical centers. The programs…

  1. Competency based career ladders for project managers in a large research & development organisation

    CSIR Research Space (South Africa)

    Fourie, W

    2011-06-01

    Full Text Available the same organisation employing multiple sources of evidence to determine an optimal way of recognising and rewarding the career growth of project managers. Employee loyalty and career decisions are influenced by motivational theory, the need for career...

  2. Changing How Schools and the Profession Are Organized: Building a Foundation for a National System of Teacher Career Ladders at the National Center on Education and the Economy

    OpenAIRE

    Yang Keo, Seng-Dao

    2016-01-01

    This capstone examines the National Center on Education and the Economy’s (NCEE) efforts in its initial planning stage to lead the design of and build support for a proposed national system of teacher career ladders. In this career ladder system, teachers can voluntarily seek advanced certification leading up to the role of Master Teacher, and states can volunteer to use the system and determine how to use it. I describe my role in strengthening NCEE’s relationship with the National Board for...

  3. Snakes and Ladders: Stressing the Role of Meta-Competencies for Post-Modern Careers

    Science.gov (United States)

    Lo Presti, Alessandro

    2009-01-01

    Major global changes during the last decades have influenced the individual's work-life and career. As a result of globalisation, increasing societal complexity and flexibility, careers have lost their linearity and predictability. Traditional models of career development no longer provide a comprehensive explanation for an adequate career…

  4. Ladders to Success.

    Science.gov (United States)

    Hersch, Paul

    1982-01-01

    The Metropolitan Sewerage District (Green Bay, Wisconsin) has developed a reputation as a well-engineered, competently managed, and efficiently operated facility. Describes management devices to foster positive employee attitudes (human resources development plan, career ladders), money-wise approaches used by the facility, and new developments…

  5. Radiologic Career Ladder

    Science.gov (United States)

    1992-09-01

    the 5- or 7-skill level. The following are the tasks members with the Instructor job spend the most time performing: Conduct formal course classroom ...JLULJ0LUJC LLU LULU ix 0l a- a-a-0a- Q-Q- L.)Q- 0- o-4 0- P-4 a- (I.uC- 0000- CLil le LA C’J r- " > kro n mCD mr-- coaQC~ o % :X LA cn ff O C -d’ O LA C...nE c/iC/i LU L1 - < M (D C C 1-c(/ F- = cr C) M o-qLJV ) 0 941 D=F LU-L C/) LUC F-4 CU- M - LM L 00= < C) 0𔃺 -J 6 .- CD L) C X: a- -c 0 C)< 0ý 3 _ 0

  6. Missile Maintenance Career Ladder

    Science.gov (United States)

    1994-01-01

    K696 INSPECT GENERAL PURPOSE EQUIPMENT 48 E176 LOCATE INFORMATION IN TOs 44 F235 PERFORM PREOPERATIONAL CHECKS ON MECHANICAL 42 MAINTENANCE SUPPORT...ON COLORIMETRIC GAS DETECTORS 24 27 TABLE 9 REPRESENTATIVE TASKS PERFORMED BY 2M052A PERSONNEL PERCENT MEMBERS PERFORMING TASKS (N=436) E176 LOCATE...AS STAFF MEETINGS, 67 BRIEFINGS, CONFERENCES, OR WORKSHOPS B30 CONDUCT PERFORMANCE FEEDBACK WORKSHEET SESSIONS 64 E176 LOCATE INFORMATION IN TOs 57

  7. Climbing the ladder : Gender-specific career advancement in financial services and the influence of flexible work-time arrangements

    NARCIS (Netherlands)

    Noback, Inge; Broersma, Lourens; Van Dijk, Jouke

    2013-01-01

    The aim of this study is to gain insight into the gender-specific career advancement of about 10,000 middle- and top-level managers in a Dutch financial services company. Our results indicate that women earn less, work at lower job levels, but show slightly higher career mobility than men. However,

  8. Climbing the ladder : Gender-specific career advancement in financial services and the influence of flexible work-time arrangements

    NARCIS (Netherlands)

    Noback, Inge; Broersma, Lourens; Van Dijk, Jouke

    2013-01-01

    The aim of this study is to gain insight into the gender-specific career advancement of about 10,000 middle- and top-level managers in a Dutch financial services company. Our results indicate that women earn less, work at lower job levels, but show slightly higher career mobility than men. However,

  9. Voegelin's Ladder

    Directory of Open Access Journals (Sweden)

    Nathan Harter

    2006-06-01

    Full Text Available Leadership has non-logical aspects. One of these is spirituality. Voegelin’s Ladder provides a context for studying spirituality as a part of leadership. What it reveals is that spirituality arises at the intersection of the human with the divine. Spirituality expresses itself as purpose and aspiration, which a leader embodies.

  10. Os planos de carreira premiam os melhores professores? ¿Los planes de desarrollo de cargos y salarios premian los mejores profesores? Do the career ladders honor the best teachers?

    Directory of Open Access Journals (Sweden)

    Gabriela Sousa Rêgo Pimentel

    2009-06-01

    ón disyuntiva entre atender las propuestas docentes y el comprometimiento de presupuestos futuros. Las conclusiones del artículo indican que tales planes de desarrollo de cargos y salarios, generalmente, son fundamentados en aspiraciones, deseos y suposiciones no fundamentadas en la literatura. Se sugiere que estos planes prioricen las características del profesor que presentan efecto sobre el desempeño estudiantil, una vez que el profesor y la escuela están al servicio del alumno.This paper presents a discussion on the criteria for progression in teachers' career ladder. Initially, the teachers' roles among the contemporary society, as well as their importance will be discussed. Then, the teachers improvement related to their own activities will also be discussed. Later, some national and foreign researches focused on teaching characteristics which affect students outcomes will be examined. The following topic intends to identify the Brazilian legislation related to the teachers' career ladder. Finally, the criteria and characteristics of the teachers' career ladder in Barreiras City, Bahia, Brazil, are described. Nowadays, this city is on a disjunctive situation between caring about teachers' proposals and its commitment with future budgets. The conclusions of this article indicate that career ladders, are generally based on aspirations, desires and assumptions. It is suggested that these career ladders prioritize the teachers characteristics which have an effect on the students' performance, since they are teachers and schools principal aim.

  11. Aircraft Fuel Systems Career Ladder.

    Science.gov (United States)

    1985-09-01

    type fittings remove and install fuel cells clean work areas inspect aircraft for safety pin installation purge tanks or cells using blow purge method...INSPECT AIRCRAFT FOR SAFETY PIN INSTALLATION 84 H254 PURGE TANKS OR CELLS USING BLOW PURGE METHOD 83 H227 CHECK AIRCRAFT FOR LIQUID OXYGEN (LOX...H243 INSPECT AIRCRAFT FOR SAFETY PIN INSTALLATION 52 M483 MIX SEALANTS BY HAND 48 K372 CONNECT OR DISCONNECT WIGGINS TYPE FITTINGS 48 H236 DISCONNECT

  12. Ladder Safety Live #12985

    Energy Technology Data Exchange (ETDEWEB)

    Chochoms, Michael [Los Alamos National Laboratory

    2017-02-23

    This course presents information for working safely with portable ladders: specifically, stepladders, extensions ladders, and their derivations. Additionally, this course provides limited information on the safe use of stepstools and fixed ladders. The skills, techniques, and good practices needed for selecting, inspecting, setting up and securing, and using ladders are presented in this course.

  13. Onto, up, off the Academic Faculty Ladder: The Gendered Effects of Family on Career Transitions for a Cohort of Social Science Ph.D.s

    Science.gov (United States)

    Morrison, Emory; Rudd, Elizabeth; Nerad, Maresi

    2011-01-01

    With event history analysis, we examine the impact of gender, marital status and spouse type, and parenting at key transition points in the early careers of more than 2,000 social science Ph.D. graduates. This analysis (a) uses data from recent Ph.D. graduates; (b) disentangles the effects of marriage and parenting; and (c) observes the effects of…

  14. Onto, up, off the Academic Faculty Ladder: The Gendered Effects of Family on Career Transitions for a Cohort of Social Science Ph.D.s

    Science.gov (United States)

    Morrison, Emory; Rudd, Elizabeth; Nerad, Maresi

    2011-01-01

    With event history analysis, we examine the impact of gender, marital status and spouse type, and parenting at key transition points in the early careers of more than 2,000 social science Ph.D. graduates. This analysis (a) uses data from recent Ph.D. graduates; (b) disentangles the effects of marriage and parenting; and (c) observes the effects of…

  15. Aviation Maintenance (Aircraft Mechanics & Aircraft & Instrument Repair Personnel). Aviation Careers Series. Revised.

    Science.gov (United States)

    Zaharevitz, Walter

    This booklet, one in a series on aviation careers, outlines career opportunities in aviation maintenance. The booklet provides the following information about aviation maintenance jobs: nature of the work, working conditions, where the jobs are, wages and benefits, opportunities for advancement, requirements to enter the job, opportunities for…

  16. Ladder attachment platform

    Science.gov (United States)

    Swygert,; Richard, W [Springfield, SC

    2012-08-28

    A ladder attachment platform is provided that includes a base for attachment to a ladder that has first and second side rails and a plurality of rungs that extend between in a lateral direction. Also included is a user platform for having a user stand thereon that is carried by the base. The user platform may be positioned with respect to the ladder so that it is not located between a first plane that extends through the first side rail and is perpendicular to the lateral direction and a second plane that extends through the second side rail and is perpendicular to the lateral direction.

  17. The latrine ownership ladder

    DEFF Research Database (Denmark)

    Obeng, Peter Appiah; Keraita, Bernard; Oduro-Kwarteng, Sampson;

    2015-01-01

    Purpose – The purpose of this paper is to present the latrine ownership ladder as a conceptual policy framework to enhance sanitation uptake in low-income peri-urban areas. Design/methodology/approach – The paper draws from literature and a case study in a Ghanaian peri-urban community to highlight...... the challenges that undermine sanitation uptake in low-income peri-urban areas and the prospects of various levels of facility sharing as conceived in the latrine ownership ladder approach. Findings – The authors argue that the infrastructural and other socio-economic challenges of low-income peri-urban areas...... to the promotion of household latrines. The paper identifies provision of special concessions for peri-urban areas in policy formulation, education and technical support to households, regulation and enforcement of sanitation by-laws among complimentary policy interventions to make the latrine ownership ladder...

  18. Pelton Ladder Master Plan.

    Energy Technology Data Exchange (ETDEWEB)

    Smith, Max

    1991-07-01

    Rearing additional fish in Pelton Ladder provides fishery managers with a low-cost alternative to making major financial investments in new formal hatchery facilities. Adult chinook returning from this rearing program will help bolster the dwindling runs of upriver spring chinook, thus assisting the Council's goal for increased production of this species. The Deschutes River Subbasin Plan envisions need for additional return of hatchery-produced spring chinook in order to meet goals for increased harvest opportunity. Spring chinook released from Pelton Ladder will contribute little to offshore fisheries, as we can account for only about 1 percent of the RBH contribution in offshore fisheries. Based on past performance, we expect 6 percent of the adults produced will be caught in sport, commercial, and tribal subsistence fisheries in the Columbia River. Most benefits of the extra adults produced will be realized in the Deschutes River in the form of increased sport and tribal harvests and increased returns to RBH. Adults collected at Pelton Ladder above production needs will be provided to the CTWS. Return of more adults to the Deschutes River will continue the trend of increased abundance of spring chinook noted since 1985. Rearing of fish in the ladder under the proposed program will provide ODFW and CTWS co-management opportunity, and the associated monitoring and evaluation studies will refine ODFW's ability to effectively manage the RBWPelton Ladder rearing program and will provide inferences about the ability to further employ the fish-rearing potential of unused sections of the fish ladder.

  19. Mentoring clinical ladder advancement with a facilitated prep class.

    Science.gov (United States)

    Winslow, Susan A; Blankenship, Jean

    2007-01-01

    The authors describe a strategy for encouraging participation and overcoming reluctance of staff to participate in an optional professional advancement career ladder program. A facilitated prep class in a computer skills laboratory provides nurses with the framework for completing application requirements in a casual, supportive atmosphere.

  20. Ladder Variational Autoencoder

    DEFF Research Database (Denmark)

    Sønderby, Casper Kaae; Raiko, Tapani; Maaløe, Lars

    2016-01-01

    Variational autoencoders are powerful models for unsupervised learning. However deep models with several layers of dependent stochastic variables are difficult to train which limits the improvements obtained using these highly expressive models. We propose a new inference model, the Ladder Variat...

  1. Avionic Sensor Systems and Aerospace Photographic Systems Repair Career Ladders AFSCs 322X2A, 322X2C, and 404X1.

    Science.gov (United States)

    1984-07-01

    3ABR322X2C is 98 days; and course 3ABR404X1 is 73 days in duration. The A- and C-shred attend a 226-hour G3AQR32020-005 Electronics Principles Course...The 404X1 receive electronics principles incorporated into their regular curriculum for a total of 183 hours. Successful completion of the tech school... Electronics Principles Inventory (EPI) was recently completed which included the 322X2A AFSC. The goal of an EPI is to obtain information on percent

  2. Instrumentation Career Ladder AFSC 316X3

    Science.gov (United States)

    1991-02-01

    well as a number of survey respondents, expressed the opinion that only electronics principles should be included in the entry-level course. They feel...Because there are so many, they will not be dis- cussed in this report. School personnel need to review the table and the Electronics Principles Extract

  3. Instrumentation Career Ladder AFSC 316X3

    Science.gov (United States)

    1979-10-01

    tasks of average difficulty have ratings of 5.00. Tasks rated as above average in difficulty were ostly associated with laser technology . These laser...UTILIZATION OF TALEN : EXCELLENTLY TO PERFECTLY 29% VERY WILL TO FAIRLY WELL 71% LITTLE OR NOT AT ALL 0. PERCEIVED UrILIZATION OF TRAINING: EXCELLENTLY TO

  4. Graphics Career Ladder AFSC 231X1

    Science.gov (United States)

    1992-01-01

    TIP MARKERS, BRUSHES, LIGHT TABLE, LINE MASTER, PAPER, MATS, T-SQUARE, RULER, FLIP CHART PAPER, TEMPLATES, SQUARE, TAPE, NON-PHOTO BLUE PENCIL, PAINT...ILLUSTRATORS TOOLS AND SUPPLIES, FRENCH CURVE, GRAPH PAPER, KROY MACHINE, LIGHT TABLE, FELT TIP MARKERS, COPY MACHINE, FLIP CHART PAPER, TEMPLATES (MILITARY...LETTERING SHEETS (TASK 00010) A - PROOFREAD TEXT (F241) OR A - PLACE GUIDE SHEET ON BACK OF CHART PAPER A - SKETCH ROUGH DRAFT ON FLIP CHART (G257) A

  5. Diet Therapy Career Ladder, AFSC 926XO.

    Science.gov (United States)

    1985-12-01

    prep- aring, cooking, and serving routine and therapeutic diets for personnel under - medical treatment; performing clinical dietetics tasks; and...operating and cleaning medical food service equipment; procuring, storing, and issuing dietetic foods and sup- plies; and performing medical food...FOOC FOR MINIMAL-RESIDUE DIETS ACCORDING TO PHYSICIAN’S OR DIETITIAN’S GUIDELINES AND AFR 160-8 50% 5.98 G193 PREPARE FOOD FOR HIGH FIBER DIETS

  6. Climbing the Corporate Ladder.

    Science.gov (United States)

    Smith, Christopher

    The employment records of a large northeastern manufacturing plant were analyzed to test the opportunity for career advancement within a large-scale industrial establishment. The employment records analyzed covered the years 1921 through 1937 and more than 28,000 different employees (male and female). The company was selected as being…

  7. Variations of the Sliding Ladder Problem

    Science.gov (United States)

    Kapranidis, Stelios; Koo, Reginald

    2008-01-01

    This article takes another look at the sliding ladder problem that students meet in the study of related rates in calculus. Physically realistic situations with both constrained and understrained ladders are explored.

  8. 29 CFR 1926.1053 - Ladders.

    Science.gov (United States)

    2010-07-01

    ...), except in the case of an elevator pit ladder, for which a minimum perpendicular clearance of 41/2 inches...-eighth the working length of the ladder. (iii) Fixed ladders shall be used at a pitch no greater than 90...

  9. 29 CFR 1910.27 - Fixed ladders.

    Science.gov (United States)

    2010-07-01

    .... (v) The rungs of an individual-rung ladder shall be so designed that the foot cannot slide off the... OCCUPATIONAL SAFETY AND HEALTH STANDARDS Walking-Working Surfaces § 1910.27 Fixed ladders. (a) Design requirements—(1) Design considerations. All ladders, appurtenances, and fastenings shall be designed to...

  10. Career age peaks

    Directory of Open Access Journals (Sweden)

    Polozov Andrey Anatolievich

    2015-10-01

    Full Text Available Most researchers seem career as translational motion the steps to the top. However, very similar to that on the ladder just two steps – in 25 and 39 years. At age 25, the largest value reaches the value of the index of intelligence, and at the age of 39 years – management experience. Best results have revealed 6 years after the beginning of its profile.

  11. Genus Distributions of Moebius Ladders

    Institute of Scientific and Technical Information of China (English)

    李德明

    2005-01-01

    The genus distribution of a graph is a polynomial whose coefficients are the partition of the number of embeddings with respect to the genera. In this paper,the genus distribution of Moebius ladders is provided which is an infinite class of 3-connected simple graphs.

  12. Discrete breathers in Josephson ladders

    NARCIS (Netherlands)

    Trias, E.; Mazo, J.J.; Brinkman, A.; Orlando, T.P.

    2001-01-01

    We present a study of nonlinear localized excitations called discrete breathers in a superconducting array. These localized solutions were recently observed in Josephson-junction ladder arrays by two different experimental groups [Phys. Rev. Lett. 84 (2000) 741; Phys. Rev. Lett. 84 (2000) 745; Phys.

  13. Insights on STEM Careers

    Energy Technology Data Exchange (ETDEWEB)

    Wendelberger, Joanne Roth [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2014-11-05

    This presentation will provide career advice for individuals seeking to go beyond just having a job to building a successful career in the areas of Science, Technology, Engineering, and Mathematics. Careful planning can be used to turn a job into a springboard for professional advancement and personal satisfaction. Topics to be addressed include setting priorities, understanding career ladders, making tough choices, overcoming stereotypes and assumptions by others, networking, developing a professional identify, and balancing a career with family and other personal responsibilities. Insights on the transition from individual technical work to leadership will also be provided. The author will draw upon experiences gained in academic, industrial, and government laboratory settings, as well as extensive professional service and community involvement.

  14. The one step fermionic ladder

    Science.gov (United States)

    Das, Joy Prakash; Setlur, Girish S.

    2017-10-01

    The one step fermionic ladder refers to two parallel Luttinger Liquids (poles of the ladder) placed such that there is a finite probability of electrons hopping between the two poles at a pair of opposing points along each of the poles. The many-body Green function for such a system is calculated in presence of forward scattering interactions using the powerful non-chiral bosonization technique (NCBT). This technique is based on a non-standard harmonic analysis of the rapidly varying parts of the density fields appropriate for the study of strongly inhomogeneous ladder systems. The closed analytical expression for the correlation function obtained from NCBT is nothing but the series involving the RPA (Random Phase Approximation) diagrams in powers of the forward scattering coupling strength resummed to include only the most singular terms with the source of inhomogeneities treated exactly. Finally the correlation functions are used to study physical phenomena such as Friedel oscillations and the conductance of such systems with the potential difference applied across various ends.

  15. Career anchors and learning plan (part one

    Directory of Open Access Journals (Sweden)

    Daniela Brečko

    2006-12-01

    Full Text Available The article is divided into three parts. The first part concentrates on how important career is for an individual, organization and society. The author establishes that understanding of career has changed dramatically and does not only refer to climbing up the career ladder, but also moving off or even down the career ladder. The notion of career, as a lifelong and professional path, encompasses all aspects of human personality and their roles acquired through one's life. On basis of vast and longitudinal research, where the author has studied career anchors of individuals, it is the objective of the author to find out on basis of what grounds do the individuals decide to take certain directions in their careers and how learning contributes to such decisions. As a source the author has used Shein's theory of career anchors. Part one describes in greater detail 8 different career anchors and introduces their main features with the findings of the research, which refer to the analysis of professions (work positions and established career anchors. The author thus verifies the hypothesis that career anchors do exist in our area.

  16. Career Self-Management and Career Capital of Mid-Level Administrators in Higher Education Who Previously Served as Professional Academic Advisors

    Science.gov (United States)

    Smith, Elecia Cole

    2014-01-01

    Understanding the prerequisites for career advancement helps to keep employees motivated and engaged. However, in the higher education (H.E.) workplace, where formalized career ladders are sparse and ambiguous for staff personnel--especially those in professional academic advising--employees who are interested in career advancement into mid-level…

  17. Career Self-Management and Career Capital of Mid-Level Administrators in Higher Education Who Previously Served as Professional Academic Advisors

    Science.gov (United States)

    Smith, Elecia Cole

    2014-01-01

    Understanding the prerequisites for career advancement helps to keep employees motivated and engaged. However, in the higher education (H.E.) workplace, where formalized career ladders are sparse and ambiguous for staff personnel--especially those in professional academic advising--employees who are interested in career advancement into mid-level…

  18. Understanding the Behaviour of Infinite Ladder Circuits

    Science.gov (United States)

    Ucak, C.; Yegin, K.

    2008-01-01

    Infinite ladder circuits are often encountered in undergraduate electrical engineering and physics curricula when dealing with series and parallel combination of impedances, as a part of filter design or wave propagation on transmission lines. The input impedance of such infinite ladder circuits is derived by assuming that the input impedance does…

  19. Laddering em pesquisa de marketing

    Directory of Open Access Journals (Sweden)

    Tânia Modesto Veludo-de-Oliveira

    Full Text Available O artigo discute a técnica de pesquisa laddering em marketing, considerando a proposta de renovação de conhecimentos sobre metodologia na área. Para isso investiga diversos estudos, artigos e pesquisas que tratam do assunto em nível nacional e internacional. O conceito de cadeias meios-fins é abordado pela estrutura teórica que fundamenta a técnica, ligando atributos, conseqüências percebidas do consumo e valores pessoais relativos a um produto. O artigo segue com a explicação dos procedimentos de campo, como a entrevista e a análise dos dados. A laddering é um instrumento de pesquisa qualitativa bastante útil e poderoso, mas ainda pouco utilizado tanto por acadêmicos como por profissionais de mercado, no Brasil, provavelmente por desconhecimento e pouca divulgação. Cabe, portanto, uma maior disseminação de seu uso.

  20. The snakes and ladders of National Health Service management in England.

    Science.gov (United States)

    Powell, Martin

    2014-01-01

    This article explores managerial careers in the National Health Service (NHS) through the lens of talent management, particularly focusing on how managers view barriers (snakes) and facilitators (ladders) to career progression. There is a significant literature on enablers and barriers to career progression, but much of this focuses on specific groups such as black and minority ethnic and female workers, and there is relatively little material on the general workforce of the NHS. The research design is a mixed method quantitative (questionnaire) and qualitative (interview and focus group) approach consisting of a quasi-probability element that focuses on a maximum variety sample and a purposive element that seeks policy views at central and strategic health authority level, and examines talent management in high-performing NHS organisations. Ladders are identified as follows: volunteering, secondment, networking, mentoring, academic qualifications, development, good role models/managers and appraisal/personal development plan. Snakes are identified as managing expectations; identity and cognitive diversity; location; sector; NHS toxic and favouritism culture; poor talent spotting; credentialism; exclusive approach to talent; and sustainability. It concludes that while previous conceptual and empirical work is fairly clear on any ladders, it is less clear on snakes. Copyright © 2013 John Wiley & Sons, Ltd.

  1. Telephone Switching Career Ladder. AFSC 362X1

    Science.gov (United States)

    1990-03-01

    Emphasis and Task Difficulty Data .......... 26 Specialty Training Standard (STS) .... ............... 26 ELECTRONICS PRINCIPLES . . . . . . . . . . . . . . . . . . . . . . . . 3...EUE Ne V) <In -4- C )CA 00CLF CArnC~ C-4 (iCV C) lA < S- m "C4 c\\JC\\"CD -l(%,--4 it~ U-- L Lj- ULLi- LUU..W L 33 TABLE 19 ELECTRONICS PRINCIPLES USED BY

  2. Training Career Ladder AFSC 751X2. Volume III.

    Science.gov (United States)

    1981-01-01

    u0 -4V n on < .z - < .0=w x =Z 14 W! < " e- I.!;. ) En 2 E H C l>)n q 0 w0r M> > 35 JOB INTEREST AND IERCEIVED !Li ,N OF’ TALEN ... AN TRAINNG BY...PERSONNEL WHEN COMPUTERS MALFUNCTION 2.6 13 MAIL OFFICER EDUCATIONAL TRANSCRIPTS TO AIR FORCE INSTITUTE OF TECHNOLOGY 2.6 6 DESTROY TESTS 2.5 21 42

  3. Logistics Plans Career Ladder, AFSC 2G0X1

    Science.gov (United States)

    1998-05-01

    with appropriate agencies 68 E168 Coordinate appointment of WRM managers with unit commanders 66 E176 Determine distribution of war consumables...12 E176 Determine distribution of war consumables distribution objectives (WCDOs) 13 E177 Determine distribution of WPARRs 14 El80 determine WRM

  4. Surgical Services Career Ladder, AFSC 902X2.

    Science.gov (United States)

    1987-09-01

    MEDICAL TRAINING, SUCH AS FIRST AID OR CARDIOPULMONARY RESUSCITATION 89 E176 PICK UP DAILY CLINIC ADMINISTRATIVE DISTRIBUTION 89 E137 MAKE ENTRIES ON AF...OTHER THAN DATED MEDICATIONS 76 1137 MKE ENTRIES ON AF FORMS 560 (ADMISSION AUTHORIZATION AND TREATMENT STATEMENT) 87 E176 PICK UP DAILY CLINIC...MAINTAIN PROPERTY CUSTODIAN LOG BOOKS 100 E176 PICK UP DAILY CLINIC ADMINISTRATIVE DISTRIBUTION 100 B21 COUNSEL PERSONNEL ON PERSONAL OR MILITARY-RELATED

  5. Command and Control Career Ladder, AFSC 274X0.

    Science.gov (United States)

    1987-04-01

    OPERATIONAL SECURITY (OPSEC) RULES 77 E176 REPRODUCE UNCLASSIFIED DOCUMENTS 77 F307 PROVIDE SECURITY FOR CLASSIFIED MATERIALS OR EQUIPMENT 76 E175 REPRODUCE...CLASSIFIED SECRET AND TOP SECRET 77 C96 REVIEW INSPECTION AND OPERATIONAL REPORTS 76 E176 REPRODUCE UNCLASSIFIED DOCUMENTS 76 E175 REPRODUCE CLASSIFIED...PARTICIPATE IN CONFERENCES OR POLICY MEETINGS 100 B56 DRAFT CORRESPONDENCE OR REPORTS 97 E176 REPRODUCE UNCLASSIFIED DOCUMENTS 86 B55 DRAFT CHANGES TO MANUALS

  6. Dental Laboratory Career Ladder AFS 982X0.

    Science.gov (United States)

    1982-09-01

    SUPPLIES 11 A23 REVIEW UNIT EMERGENCY OR DISASTER PLANS 11 K305 PERFORM SOLDERING PROCEDURES ON ORTHODONTIC APPLIANCES 11 F129 BOIL OUT WAX FROM MOLDS 11...to RPD fabrication, one related to ceramic prostheses fabrication, and one related to orthodontic duties). 3. DAFSC and Skill-Level Task Differences...laboratory personnel were different due to specialization. Area laboratory personnel fabricated Removable Partial Dentures (RPDs) and orthodontic appliances

  7. Liquid Fuel Systems Maintenance Career Ladder AFS 545X1.

    Science.gov (United States)

    1982-10-01

    explosimeters and perform very general maintenance, uch as bending and flaring copper tubing, cutting copper or stainless steel tubing, threading pipe ...discussed are listed below. The GRP number shown beside each title is a reference to computer printed information included for use by classification...FILTER-SEPARATOR ELEMENTS 96 F118 CUT GASKET MATERIAL 96 F112 BEND COPPER TUBING 95 Fl15 CLEAN HAND TOOLS 93 F123 FLARE COPPER TUBING 93 F117 CUT

  8. Medical Laboratory Career Ladder (AFSC 924X0).

    Science.gov (United States)

    1985-03-01

    FOR SYPHILIS, SUCH AS VDRL OR RPR 33 55 -22 55 TRAINING ANALYSIS Occupational survey data are used to assist in the development or review of training...BLUE 100 1240 PERFORM NONTREPONEMAL TESTS FOR SYPHILIS, SUCH AS VDRL OR RPR 100 K299 PERFORM ERYTHROCYTE SEDIMENTATION RATE TESTS 100 E171 PREPARE

  9. Detecting Cerebellar Phenotypes with the Erasmus Ladder

    NARCIS (Netherlands)

    A. Cupido (Alexander)

    2009-01-01

    textabstractI designed, created and established a new motor behavioural task for mice, the Erasmus Ladder. It is now a quick and reliable behavioural task to determine if (mutant) mice could be a good model for a neurological disease.

  10. The transient ladder synchronization of chaotic systems

    Energy Technology Data Exchange (ETDEWEB)

    Chen, H.-K. [Department of Industrial Engineering and Management, Hsiuping Institute of Technology, No. 11, Gungye Rd., Dali City, Taichung, Taiwan (China)]. E-mail: kanechen@giga.net.tw; Sheu, L.-J. [Department of Mechanical Engineering, Chung Hua University, Hsinchu, Taiwan (China)]. E-mail: ljsheu@chu.edu.tw

    2006-07-03

    A new type for chaotically synchronizing systems, transient ladder chaos synchronization, is proposed in this Letter. For some physical systems, chaotic synchronization is possible in only some of the variables. It is shown that, for the non-synchronizing variable, synchronization up to a constant difference for t{sub 1}=ladder chaos synchronization and anti-synchronization are illustrated by using two identical chaotic Froude pendulums. Numerical simulations are shown for demonstration.

  11. Nuclear Escalation Ladders in South Asia

    Science.gov (United States)

    2011-04-01

    Ibid., pp. 211-212. 23 Fig. 3. Indian Escalation Ladder - Facing China in the Himalayas Response or Initiative Rung Order Thresholds and Rungs Peace...potential land-warfare ladders in the Himalayas . A. Territorial Boundaries India and Pakistan face each other across a common international... Himalayas from Ladakh in Kashmir south and east for 2,100 miles, interrupted by Nepal and Bhutan, which have their own northern borders with China of 768 and

  12. Experimental evidence of variable-order behavior of ladders and nested ladders

    CERN Document Server

    Sierociuk, Dominik; Petras, Ivo

    2011-01-01

    The experimental study of two kinds of electrical circuits, a domino ladder and a nested ladder, is presented. While the domino ladder is known and already appeared in the theory of fractional-order systems, the nested ladder circuit is presented in this article for the first time. For fitting the measured data, a new approach is suggested, which is based on using the Mittag-Leffler function and which means that the data are fitted by a solution of an initial-value problem for a two-term fractional differential equation. The experiment showed that in the frequency domain the domino ladder behaves as a system of order 0.5 and the nested ladder as a system of order 0.25, which is in perfect agreement with the theory developed for their design. In the time domain, however, the order of the domino ladder is changing from roughly 0.5 to almost 1, and the order of the nested ladder is changing in a similar manner, from roughly 0.25 to almost 1; in both cases, the order 1 is never reached, and both systems remain th...

  13. Transport properties of a ladder with two random dimer chains

    Institute of Scientific and Technical Information of China (English)

    Hu Donng-Sheng; Zhu Chen-Ping; Zhang Yong-Mei

    2011-01-01

    We investigate the transport properties of a ladder with two random dimer (RD) chains. It is found that there are two extended states in the ladder with identical RD chains and a critical state regarded as an extended state in the ladder with pairing RD chains. Such a critical state is caused by the chiral symmetry. The ladder with identical RD chains can be decoupled into two isolated RD chains and the ladder with pairing RD chains can not. The analytic expressions of the extended states are presented for the ladder with identical RD chains.

  14. Dipoles on a Two-leg Ladder

    DEFF Research Database (Denmark)

    Gammelmark, Søren; Zinner, Nikolaj Thomas

    2013-01-01

    We study polar molecules with long-range dipole-dipole interactions confined to move on a two-leg ladder for different orientations of the molecular dipole moments with respect to the ladder. Matrix product states are employed to calculate the many-body ground state of the system as function...... of lattice filling fractions, perpendicular hopping between the legs, and dipole interaction strength. We show that the system exhibits zig-zag ordering when the dipolar interactions are predominantly repulsive. As a function of dipole moment orientation with respect to the ladder, we find...... that there is a critical angle at which ordering disappears. This angle is slightly larger than the angle at which the dipoles are non-interacting along a single leg. This behavior should be observable using current experimental techniques....

  15. 46 CFR 197.320 - Diving ladder and stage.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Diving ladder and stage. 197.320 Section 197.320... STANDARDS GENERAL PROVISIONS Commercial Diving Operations Equipment § 197.320 Diving ladder and stage. (a) Each diving ladder must— (1) Be capable of supporting the weight of at least two divers; (2) Extend...

  16. Quantifying Ladder Fuels: A New Approach Using LiDAR

    Science.gov (United States)

    Heather Kramer; Brandon Collins; Maggi Kelly; Scott Stephens

    2014-01-01

    We investigated the relationship between LiDAR and ladder fuels in the northern Sierra Nevada, California USA. Ladder fuels are often targeted in hazardous fuel reduction treatments due to their role in propagating fire from the forest floor to tree crowns. Despite their importance, ladder fuels are difficult to quantify. One common approach is to calculate canopy base...

  17. Vibrational ladder climbing in NO using ultrashort IR laser pulses

    NARCIS (Netherlands)

    Maas, D. J.; Duncan, D. I.; van der Meer, A. F. G.; van der Zande, W. J.; Noordam, L. D.; Lambropoulos, P.; Walther, H.

    1997-01-01

    Chirped excitation of an electronic ladder system has shown complete transfer of the population to the top-level of the ladder system. Similar excitation of vibrational ladders in molecules may provide a tool for state-selective chemistry. Experimental results on the climbing of the anharmonic vibra

  18. The Static Ladder Problem with Two Sources of Friction

    Science.gov (United States)

    Bennett, Jonathan; Mauney, Alex

    2011-01-01

    The problem of a ladder leaning against a wall in static equilibrium is a classic example encountered in introductory mechanics texts. Most discussions of this problem assume that the static frictional force between the ladder and wall can be ignored. A few authors consider the case where the static friction coefficients between ladder/wall…

  19. The Static Ladder Problem with Two Sources of Friction

    Science.gov (United States)

    Bennett, Jonathan; Mauney, Alex

    2011-01-01

    The problem of a ladder leaning against a wall in static equilibrium is a classic example encountered in introductory mechanics texts. Most discussions of this problem assume that the static frictional force between the ladder and wall can be ignored. A few authors consider the case where the static friction coefficients between ladder/wall…

  20. Calculated Investigation of Gravitational Sagging of ITS Outer Layer Model Ladder for ALICE and Optimization of Parameters of Ladder

    CERN Document Server

    Gloukhov, N P; CERN. Geneva

    1996-01-01

    The report presents results of stiffness' calculations of the about 1.1 m length lightweight model ladder and some of its modifications for Inner Tracking System Abstract: for ALICE. As a result, dependences of the ladder's stiffness and mass Abstract: Abstract: characteristics on its geometrical parameters are investigated and an optimum structure of the ladder Abstract: (carbon fibre space frame) is determined.

  1. The Entrepreneurial Ladder and its Determinants

    NARCIS (Netherlands)

    Zwan, van der Peter; Thurik, Roy; Grilo, Isabel

    2006-01-01

    We test a new model where the entrepreneurial decision is described as a process of successive engagement levels, i.e., as an entrepreneurial ladder. Five levels are distinguished using nearly 12,000 observations from the 2004 Flash Eurobarometer survey on Entrepreneurship covering the 25 European U

  2. Multiinstanton ladders in baryon number violating processes

    CERN Document Server

    Lazarides, G

    1995-01-01

    We estimate the contribution of a class of multiinstanton ladder graphs to baryon and lepton number violating processes in the standard model. We find that this contribution is negligible and does not alter the high energy behavior of the leading semiclassical approximation.

  3. Density functional theory: Fixing Jacob's ladder

    Science.gov (United States)

    Car, Roberto

    2016-09-01

    Density functional theory calculations can be carried out with different levels of accuracy, forming a hierarchy that is often represented by the rungs of a ladder. Now a new method has been developed that significantly improves the accuracy of the 'third rung' when calculating the properties of diversely bonded systems.

  4. LADDER SUPERSTRUCTURE-DIRECTED SYNTHESIS OF A WELL-DEFINED m-PHENELENEDIIMINO-BRIDGED LADDER POLYMETHYLSILOXANE

    Institute of Scientific and Technical Information of China (English)

    Yin-sheng Lv; Zhong-jie Ren; You-zhi Wan; Ping Xie; Rong-ben Zhang

    2009-01-01

    A well-defined m-phenylenediimino-bridged ladder polymethylsiloxane (LP) was first synthesized through a well-defined ladder superstructure (LS) acting as synthetic template, which was self-assembled by concerted interaction of hydrogen bonding and aromatic π-π stacking of the monomer (M), N,N'-bis(phenyldichlorosilyl)-m-phenylenediamine. Some key characterization data of LP and, in particular, the extremely vulnerable LS with very unstable Si--Cl and Si-N groups were given. The molecular weights (Mn) of LS and LP are 5010 and 10480, corresponding to about 15 and 46 monomer units, respectively. To monitor the real in situ status of LS in solution the XRD measurements of special freeze-drying samples were performed, demonstrating two characteristic peaks of ladder structure. Most importantly, both LP and LS display exceedingly sharp resonance absorption peaks with a half peak width (△1/2) as small as < 0.3 of MeSi(NH)O2/2 moieties in 29Si-NMR spectra. It is well-known that the higher the regularity of the ladder polysiloxane, the narrower the resonance peak of the siloxane moiety on the ladder backbone, and the smaller the half peak width △1/2. Therefore, the very small values of △1/2 for both LS and LP confirm that both LS and LP possess well-defined ladder structures.

  5. Career Development and Emerging Managerial Career Patterns.

    Science.gov (United States)

    Grzeda, Maurice

    1999-01-01

    Career-motivation theory provides a new framework for managerial careers in the context of contemporary career patterns. The framework includes the concepts of career resilience, career insight, and career identity. (SK)

  6. Ising Model on an Infinite Ladder Lattice

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    In this paper we propose an Ising model on an infinite ladder lattice, which is made of two infinite Ising spin chains with interactions. It is essentially a quasi-one-dimessional Ising model because the length of the ladder lattice is infinite, while its width is finite. We investigate the phase transition and dynamic behavior of Ising model on this quasi-one-dimessional system. We use the generalized transfer matrix method to investigate the phase transition of the system. It is found that there is no nonzero temperature phase transition in this system. At the same time, we are interested in Glauber dynamics. Based on that, we obtain the time evolution of the local spin magnetization by exactly solving a set of master equations.

  7. Career writing

    NARCIS (Netherlands)

    dr. Frans Meijers; Reinekke Lengelle

    2015-01-01

    Career Writing is a narrative approach to qualitative career assessment whereby client (or student) groups use creative, reflective, and expressive forms of writing to foster an internal dialogue about career. It is intended to help individuals construct a career identity by uncovering life themes,

  8. Ladder Forms in Estimation and System Identification.

    Science.gov (United States)

    1977-01-01

    system identification . Many record applications, such as in geophysical signal processing, high resolution (’maximum entropy’) spectral estimation and speech encoding, justify the interest in these forms. They appear in many contexts, such as scattering and network theory and the theory of orthogonal polynomials. The state-space model ladder realizations are very closely related in (block) Schwarz matrix canonical forms, which generally appear in the context of stability analysis. In fact they are the natural ’stability canonical form’ for

  9. Microstrips Ladder Assembly using Flexible Microcables.

    CERN Document Server

    Borshchov, V N; CERN. Geneva; Kiprich, S; Maslov, N I; Prokhorets, I; Reznik, A; Runólfsson, O; Ruzhitskaya, L; Starkov, V

    1995-01-01

    The flexible microcables are studied to evaluate the possibility of their application as an interconnection for both microstrips module and ladder of the ALICE detector. We managed to produce the microcables and to bond them directly to detector connection pads without any wire bonding. It permits for read-out chips to be displaced to one of sides of the double-sided microstrip detector.

  10. Braess like Paradox on Ladder Network

    CERN Document Server

    Toyota, Norihito

    2015-01-01

    Braess \\cite{1} has been studied about a traffic flow on a diamond type network and found that introducing new edges to the networks always does not achieve the efficiency. Some researchers studied the Braess' paradox in similar type networks by introducing various types of cost functions. But whether such paradox occurs or not is not scarcely studied in complex networks except for Dorogovtsev-Mendes network\\cite{2}. In this article, we study the paradox on Ladder type networks, as the first step to the research about Braess' paradox on Watts and Strogatz type small world network\\cite{Watt1}\\cite{Watt2}. %We theoretically and numerically studied Braess' paradox on Ladder networks. For the purpose, we construct $4 \\times 3$ models as extensions of the original Braess' models. We analyze theoretically and numerically studied the models on Ladder networks. Last we give a phase diagram for (a) model, where the cost functions of bypasses are constant =0 or flow, base on two parameters $r$ and $p$ by numerical simu...

  11. Theory of Double Ladder Lumped Circuits With Degenerate Band Edge

    CERN Document Server

    Sloan, Jeff; Capolino, Filippo

    2016-01-01

    Conventional periodic LC ladder circuits exhibit a regular band edge between a pass and a stop band. Here for the first time we develop the theory of simple yet unconventional double ladder circuits exhibiting a special degeneracy condition referred to as degenerate band edge (DBE). This special DBE condition is associated with four independent eigenstates of the double ladder that coalesce into a single one when the operative frequency coincides with the DBE one. In particular, we show that double ladder resonators may exhibit giant loaded quality factor near the DBE and stable resonance frequency against load variations. These two properties in the proposed circuit are superior to the analogous properties in single ladder circuits. Our proposed analysis leads to analytic expressions for all circuit quantities thus providing insight into the very complex behavior near points of degeneracy in periodic circuits; and provides a design procedure for the use of such double ladder in practical applications. Intere...

  12. Design and Realization of Numerical Control Ladder Diagram Edition Software

    Institute of Scientific and Technical Information of China (English)

    ZHAO Haixin; MO Yimin; PAN Yunping

    2006-01-01

    The thesis is directed by the idea of oriented- object. Considering the basic functions that NC system Ladder Diagram editor should provide, and through theoretical research and practice, the thesis developed a set of NC system Ladder Diagram editor which can form a Ladder Diagram editor based on vector plotting, intelligently compiling, simulation. This system uses the ladder diagram symbol to express operational order and use the chart symbol series-parallel connection and the position order to express the logical relations between the operational orders, divide the ladder diagram into four parts: the stave, the line, the row and the part, uses the standard order vessel list vessel of the standard template stack (STL) to save the data which involved in the design process. This system can write PLC program by ladder diagram language and is easy to use. The compilation and simulation for PLC diagram have been achieved. It greatly improves the work-efficiency.

  13. Career adaptability and career entrenchment

    NARCIS (Netherlands)

    Zacher, Hannes; Ambiel, Rodolfo A.M.; Noronha, Ana Paula Porto

    2015-01-01

    Career adaptability constitutes a resource that can help employees to effectively manage career changes and challenges. The goal of this study was to investigate the relationship between the two higher-order constructs of career adaptability and career entrenchment (i.e., the perceived inability and

  14. SYNTHESIS AND CHARACTERIZATION OF AN ORDERED LADDER POLYESTER

    Institute of Scientific and Technical Information of China (English)

    Ping-ping Zhang; Tao-yi Zhang; Chuan-feng Zhu; Yu-xia Diao; You-zhi Wan; Ping Xie; Rong-ben Zhang

    2006-01-01

    An ordered ladder polyester (LPE) was first synthesized through the ladder superstructure (LS) constructed by concerted interactions of hydroxyl- and aramide-based H-bonding and p-terphenyl (TP)-based π-stacking by dehydrochlorination condensation using phosgene (COCl2) as coupling agent. LPE was characterized by GPC, FTIR, NMR,XRD, DSC and AFM. Among them, a distinct image of regularly linear alignment corresponding to the ladder main chain of LPE was first revealed by high-resolution AFM.

  15. Dynamic analysis of rail transit elevated bridge with ladder track

    Institute of Scientific and Technical Information of China (English)

    He XIA; Yushu DENG; Yongwei ZOU; Guido DE ROECK; Geert DEGRANDE

    2009-01-01

    In this paper, a dynamic analysis model of an elevated bridge with ladder tracks under moving train load is established. The whole process of a train running through an elevated bridge at different speeds is simulated.The dynamic responses of the elevated bridge with ladder track and the running safety and comfort index of train vehicles are evaluated. Compared with the dynamic responses of an elevated bridge with ordinary non-ballasted slab track, the ladder track's effect on reducing the vibration of an elevated bridge is analyzed. The analysis results show that the ladder track has good vibration reduction characteristics as compared to ordinary non-ballasted track.

  16. A Case Study of the Career Expectations of Noneducation College Seniors in the Southeast: Why Miss Dove's Students are Not Becoming Teachers. Paper No. 419. Occasional Papers in Educational Policy Analysis.

    Science.gov (United States)

    Berry, Barnett

    A case study methodology was used to investigate the career aspirations and expectations of a range of college seniors in six diverse institutions of higher education. The research question asked was: "What impact would current policy reforms such as career ladders and merit pay have on the career choices of college students who were presently not…

  17. Thermodynamics of strongly disordered spin ladders

    OpenAIRE

    Yusuf, Eddy; Yang, Kun

    2002-01-01

    We study antiferromagnetic two-leg spin-1/2 ladders with strong bond randomness, using the real space renormalization group method. We find the low-temperature spin susceptibility of the system follows non-universal power laws, and the ground state spin-spin correlation is short-ranged. Our results suggest that there is no phase transition when the bond randomness increases from zero; for strong enough randomness the system is in a Griffith region with divergent spin susceptibility and short-...

  18. Career success in a boundaryless career world

    NARCIS (Netherlands)

    Arthur, Michael B.; Khapova, S.N.; Wilderom, Celeste P.M.

    2005-01-01

    This paper compares contemporary career theory with the theory applied in recent career success research. The research makes inconsistent use of career theory, and in particular neglects the interdependence of the objective and subjective careers, and boundaryless career issues of

  19. Career development

    OpenAIRE

    Langerová, Aneta

    2008-01-01

    Document (1) highlights some of the important career development factors connected with self management and (2) describes proposal, preparation and execution of socio-psychological trainning session of first career development which aims to help high school students find the way to start their working career correctly.

  20. 29 CFR 1910.26 - Portable metal ladders.

    Science.gov (United States)

    2010-07-01

    ...—(1) General. To get maximum serviceability, safety, and to eliminate unnecessary damage of equipment... following rules and regulations are essential to the life of the equipment and the safety of the user. (2... of ladders. (i). A simple rule for setting up a ladder at the proper angle is to place the base...

  1. 29 CFR 1910.25 - Portable wood ladders.

    Science.gov (United States)

    2010-07-01

    ... user equips them with safety shoes; (xviii) (xix) The user should equip all portable rung ladders with... Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR OCCUPATIONAL SAFETY AND HEALTH STANDARDS Walking-Working Surfaces § 1910.25 Portable wood ladders....

  2. A millimeter-wave tunneLadder TWT

    Science.gov (United States)

    Jacquez, A.; Karp, A.; Wilson, D.; Scott, A.

    1988-01-01

    A millimeter wave traveling wave tube was developed using a dispersive, high impedance forward interaction structure based on a ladder, with non-space harmonic interaction, for a tube with high gain per unit length and high efficiency. The TunneLadder interaction structure combines ladder properties modified to accommodate Pierce gun beam optics in a radially magnetized permanent magnet focusing structure. The development involved the fabrication of chemically milled, shaped ladders diffusion brazed to diamond cubes which are in turn active-diffusion brazed to each ridge of a doubly ridged waveguide. Cold test data are presented, representing the omega-beta and impedance characteristics of the modified ladder circuit. These results were used in small and large signal computer programs to predict TWT gain and efficiency. Actual data from tested tubes verify the predicted performance while providing broader bandwidth than expected.

  3. A balanced intervention ladder: promoting autonomy through public health action.

    Science.gov (United States)

    Griffiths, P E; West, C

    2015-08-01

    The widely cited Nuffield Council on Bioethics 'Intervention Ladder' structurally embodies the assumption that personal autonomy is maximized by non-intervention. Consequently, the Intervention Ladder encourages an extreme 'negative liberty' view of autonomy. Yet there are several alternative accounts of autonomy that are both arguably superior as accounts of autonomy and better suited to the issues facing public health ethics. We propose to replace the one-sided ladder, which has any intervention coming at a cost to autonomy, with a two-sided 'Balanced Intervention Ladder,' where intervention can either enhance or diminish autonomy. We show that not only the alternative, richer accounts of autonomy but even Mill's classic version of negative liberty puts some interventions on the positive side of the ladder. Crown Copyright © 2015. Published by Elsevier Ltd. All rights reserved.

  4. Career building

    Science.gov (United States)

    Carlowicz, Michael

    In order to encourage young scientists to integrate their research into teaching and their innovative teaching ideas into formal research, the National Science Foundation (NSF) is offering Faculty Early Career Development (CAREER) grants. Awarded to junior-level faculty at $200,000 to $500,000 for 4-5 years, CAREER grants are designed to allow scientists and engineers to simultaneously develop prowess in research and education early in their careers. NSF made 346 CAREER grants (including six for Earth sciences) totaling $40 million in 1996.

  5. Selectivity of fish ladders: a bottleneck in Neotropical fish movement

    Directory of Open Access Journals (Sweden)

    Carlos Sérgio Agostinho

    Full Text Available Although dozens of fish ladders have been constructed at dams of Brazilian reservoirs, there are few studies evaluating their efficiency as a tool for the conservation of Neotropical ichthyofauna, especially for migratory species. Therefore, the present study evaluated the selectivity of the species that entered and ascended the fish ladder located next to Lajeado Dam (Luis Eduardo Magalhães Hydroelectric Power Plant on the Tocantins River. Samples were taken monthly from November, 2002 through October, 2003, in the resting pools of the ladder, using cast nets, and in the downstream stretch, using gillnets. The selectivity of the ladder in attracting fish was evaluated by comparing the occurrence, relative abundance, dominance and the congruence of abundance ranks of migratory and non-migratory species in the ladder and in the stretch of river immediately downstream. Species richness and fish abundance in the resting pools were used to evaluate selectivity along the ladder. The effects on selectivity by temporal variations in water level downriver and maximum flow velocity in the fish ladder were also analyzed. Out of the 130 species recorded downriver, 62.3% were caught in the ladder, and migratory species were clearly favored. However, more than 2/3 of the catch belonged to only three species (Rhaphiodon vulpinus, Psectrogaster amazonica and Oxydoras niger. Although the majority of the species that entered the ladder were able to reach its top, there was a sharp reduction in abundance of individuals towards the top. Temporal variations in the water level below the dam influenced richness and abundance of fish concentrated downstream and in the ladder, with lower values during periods of low water. In the ladder, a maximum flow velocity of 2.3 m/s, although also selective, proved to be more appropriate for fish ascension than a velocity of 2.8 m/s. It was concluded that the entry and ascension of the fish in the ladder were not congruent with

  6. Magnetizing and heating quantum spin ladders

    Indian Academy of Sciences (India)

    Andrey Zheludev

    2008-11-01

    Quasi-one-dimensional quantum spin liquids, such as weakly coupled even-legged S=1/2 spin ladders or spin tubes, have a singlet non-magnetic ground state and gap in the excitation spectrum. Their low-temperature properties can be described in terms of triplet massive quasiparticles. These magnons possess some unique features due to the peculiar topology of one dimension. For example, two-particle interactions totally destroy single-particle states for certain energy and momentum transfers, resulting in the so-called termination of the magnon spectrum. At high field a Bose–Einstein condensation of these magnons produces a `quantum spin solid' phase, where `conventional` antiferromagnetic order coexists with excitations that are totally outside conventional spin wave theory. At finite temperatures strong repulsion between quasiparticles leads to a universal renormalization of their masses and lifetimes. These diverse phenomena are best probed by neutron scattering experiments that directly measure the spin correlation functions and excitation spectra.

  7. Integrable Renormalization I: the Ladder Case

    CERN Document Server

    Ebrahimi-Fard, K; Kreimer, D; Ebrahimi-Fard, Kurusch; Guo, Li; Kreimer, Dirk

    2004-01-01

    In recent years a Hopf algebraic structure underlying the process of renormalization in quantum field theory was found. It led to a Birkhoff factorization for (regularized) Hopf algebra characters, i.e. for Feynman rules. In this work we would like to show that this Birkhoff factorization finds its natural formulation in terms of a classical r-matrix, coming from a Rota-Baxter structure underlying the target space of the regularized Hopf algebra characters. Working in the rooted tree Hopf algebra, the simple case of the Hopf subalgebra of ladder trees is treated in detail. The extension to the general case, i.e. the full Hopf algebra of rooted trees or Feynman graphs is briefly outlined.

  8. Career Transitions and Career Success in the "New" Career Era

    Science.gov (United States)

    Chudzikowski, Katharina

    2012-01-01

    The "new" career, most notably the boundaryless career, is associated with high career mobility, which is in turn associated with employability and career success of individuals. The current study examined how frequency, form (organisational, horizontal or vertical) and impact (objective career success) of career transitions have changed…

  9. Ladder Climbing and Autoresonant Acceleration of Plasma Waves

    CERN Document Server

    Barth, Ido; Fisch, Nathaniel J

    2015-01-01

    Classical plasma waves are predicted to exhibit quantumlike ladder climbing, which is achieved by chirped modulations of the background density. An equivalence with the quantum particle in a box is identified and used to calculate the efficiency and the rate of this effect. In the limit of densely spaced spectrum, ladder climbing transforms into continuous autoresonance; plasmons may then be manipulated by chirped background modulations much like electrons are autoresonantly manipulated by chirped fields. Such ladder climbing and autoresonance effects are also predicted for other classical waves by means of a unifying Lagrangian theory.

  10. Career Education: An Undergirding for Career Counseling

    Science.gov (United States)

    Feingold, S. Norman

    1976-01-01

    This article defines career education and career counseling and attempts to delineate their functions. It then examines curriculum trends and developments in career education, and describes some innovative career education programs. (NG)

  11. Log-concavity of the genus polynomials of Ringel Ladders

    Directory of Open Access Journals (Sweden)

    Jonathan L Gross

    2015-10-01

    Full Text Available A Ringel ladder can be formed by a self-bar-amalgamation operation on a symmetric ladder, that is, by joining the root vertices on its end-rungs. The present authors have previously derived criteria under which linear chains of copies of one or more graphs have log-concave genus polyno- mials. Herein we establish Ringel ladders as the first significant non-linear infinite family of graphs known to have log-concave genus polynomials. We construct an algebraic representation of self-bar-amalgamation as a matrix operation, to be applied to a vector representation of the partitioned genus distribution of a symmetric ladder. Analysis of the resulting genus polynomial involves the use of Chebyshev polynomials. This paper continues our quest to affirm the quarter-century-old conjecture that all graphs have log-concave genus polynomials.

  12. THERMODYNAMIC PROPERTIES OF LADDER--LIKE HEISENBERG SYSTEM

    Institute of Scientific and Technical Information of China (English)

    蒋青; 潘可扬

    1993-01-01

    By combining the cumulant expansion method with the double-chain approximation, we study thermodynamic properties of ladder-like He isenberg system. We find the interaction between interchains has different effect in high and low temperature.

  13. Straightforward Procedure for Laboratory Production of DNA Ladder

    Directory of Open Access Journals (Sweden)

    Vo Thi Thuong Lan

    2012-01-01

    Full Text Available DNA ladder is commonly used to determine the size of DNA fragments by electrophoresis in routine molecular biology laboratories. In this study, we report a new procedure to prepare a DNA ladder that consists of 10 fragments from 100 to 1000 bp. This protocol is a combination of routinely employed methods: cloning, PCR, and partial digestion with restriction enzymes. DNA fragments of 100 bp with unique restriction site at both ends were self-ligated to create a tandem repeat. Once being cloned, the tandem repeat was rapidly amplified by PCR and partially digested by restriction enzymes to produce a ladder containing multimers of the repeated DNA fragments. Our procedure for production of DNA ladder could be simple, time saving, and inexpensive in comparison with current ones widely used in most laboratories.

  14. The Domestic Basis of the Scientific Career: Gender Inequalities in Ecology in France and Norway

    Science.gov (United States)

    Loison, Anne; Paye, Simon; Schermann, Agnes; Bry, Clementine; Gaillard, Jean-Michel; Pelabon, Christophe; Bråthen, Kari-Anne

    2017-01-01

    Gender-related inequalities in scientific careers are widespread, evidenced by the attrition of women along the different stages of the promotion ladder. We studied the interwoven personal and professional trajectories of researchers in ecology and compared these trajectories between France and Norway. Given their differing welfare state policies…

  15. Fish ladders: safe fish passage or hotspot for predation?

    Directory of Open Access Journals (Sweden)

    Angelo Antonio Agostinho

    Full Text Available Fish ladders are a strategy for conserving biodiversity, as they can provide connectivity between fragmented habitats and reduce predation on shoals that accumulate immediately below dams. Although the impact of predation downstream of reservoirs has been investigated, especially in juvenile salmonids during their downstream movements, nothing is known about predation on Neotropical fish in the attraction and containment areas commonly found in translocation facilities. This study analysed predation in a fish passage system at the Lajeado Dam on the Tocantins River in Brazil. The abundance, distribution, and the permanence (time spent of large predatory fish along the ladder, the injuries imposed by piranhas during passage and the presence of other vertebrate predators were investigated. From December 2002 to October 2003, sampling was conducted in four regions (downstream, along the ladder, in the forebay, and upstream of the reservoir using gillnets, cast nets and counts or visual observations. The captured fish were tagged with thread and beads, and any mutilations were registered. Fish, birds and dolphins were the main predator groups observed, with a predominance of the first two groups. The entrance to the ladder, in the downstream region, was the area with the highest number of large predators and was the only region with relevant non-fish vertebrates. The main predatory fish species were Rhaphiodon vulpinus, Hydrolycus armatus, and Serrasalmus rhombeus. Tagged individuals were detected predating along the ladder for up to 90 days. Mutilations caused by Serrasalmus attacks were noted in 36% of species and 4% of individuals at the top of the ladder. Our results suggested that the high density of fish in the restricted ladder environment, which is associated with injuries suffered along the ladder course and the presence of multiple predator groups with different predation strategies, transformed the fish corridor into a hotspot for

  16. On The Ladder Bethe-Salpeter Equation

    CERN Document Server

    Efimov, G V

    2003-01-01

    The Bethe-Salpeter (BS) equation in the ladder approximation is studied within a scalar theory: two scalar fields (constituents) with mass $m$ interacting via an exchange of a scalar field (tieon) with mass $\\mu$. The BS equation is written in the form of an integral equation in the configuration Euclidean $x$-space with the kernel which for stable bound states $M<2m$ is a self-adjoint positive operator. The solution of the BS equation is formulated as a variational problem. The nonrelativistic limit of the BS equation is considered. The role of so-called abnormal states is discussed. The analytical form of test functions for which the accuracy of calculations of bound state masses is better than 1% (the comparison with available numerical calculations is done) is determined. These test functions make it possible to calculate analytically vertex functions describing the interaction of bound states with constituents. As a by-product a simple solution of the Wick-Cutkosky model for the case of massless bound...

  17. Emerging Careers.

    Science.gov (United States)

    McGregor, Elizabeth

    1990-01-01

    Fields such as robotics, computer graphics, and health care are fostering the evolution of new occupations. Identifying these occupations is challenging because of the difficulty of distinguishing between new and existing careers. (Author)

  18. Career success in a boundaryless career world

    NARCIS (Netherlands)

    Arthur, Michael B.; Khapova, Svetlana N.; Wilderom, Celeste P.M.

    2005-01-01

    This paper compares contemporary career theory with the theory applied in recent career success research. The research makes inconsistent use of career theory, and in particular neglects the interdependence of the objective and subjective careers, and boundaryless career issues of inter-organization

  19. A Career Roles Model of Career Development

    Science.gov (United States)

    Hoekstra, Hans A.

    2011-01-01

    Career development is described as the interactive progression of internal career identity formation and the growth of external career significance. Argued is the need for a content model of career development where the field is dominated by process theories. A theory is put forward of career development crystallizing in the acquisition of career…

  20. A career roles model of career development

    NARCIS (Netherlands)

    Hoekstra, Hans A.

    2011-01-01

    Career development is described as the interactive progression of internal career identity formation and the growth of external career significance. Argued is the need for a content model of career development where the field is dominated by process theories. A theory is put forward of career develo

  1. A career roles model of career development

    NARCIS (Netherlands)

    Hoekstra, Hans A.

    Career development is described as the interactive progression of internal career identity formation and the growth of external career significance. Argued is the need for a content model of career development where the field is dominated by process theories. A theory is put forward of career

  2. A career roles model of career development

    NARCIS (Netherlands)

    Hoekstra, Hans A.

    2011-01-01

    Career development is described as the interactive progression of internal career identity formation and the growth of external career significance. Argued is the need for a content model of career development where the field is dominated by process theories. A theory is put forward of career develo

  3. PT-symmetric ladders with a scattering core

    Energy Technology Data Exchange (ETDEWEB)

    D' Ambroise, J. [Department of Mathematics, Amherst College, Amherst, MA 01002-5000 (United States); Lepri, S. [CNR – Consiglio Nazionale delle Ricerche, Istituto dei Sistemi Complessi, via Madonna del piano 10, I-50019 Sesto Fiorentino (Italy); Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, via G. Sansone 1, I-50019 Sesto Fiorentino (Italy); Malomed, B.A. [Department of Physical Electronics, School of Electrical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 69978 (Israel); Kevrekidis, P.G. [Department of Mathematics and Statistics, University of Massachusetts, Amherst, MA 01003-9305 (United States)

    2014-08-01

    We consider a PT-symmetric chain (ladder-shaped) system governed by the discrete nonlinear Schrödinger equation where the cubic nonlinearity is carried solely by two central “rungs” of the ladder. Two branches of scattering solutions for incident plane waves are found. We systematically construct these solutions, analyze their stability, and discuss non-reciprocity of the transmission associated with them. To relate the results to finite-size wavepacket dynamics, we also perform direct simulations of the evolution of the wavepackets, which confirm that the transmission is indeed asymmetric in this nonlinear system with the mutually balanced gain and loss. - Highlights: • We model a PT-symmetric ladder system with cubic nonlinearity on two central rungs. • We examine non-reciprocity and stability of incident plane waves. • Simulations of wavepackets confirm our results.

  4. A Review and Modern Approach to LC Ladder Synthesis

    Directory of Open Access Journals (Sweden)

    Alexander J. Casson

    2011-01-01

    Full Text Available Ultra low power circuits require robust and reliable operation despite the unavoidable use of low currents and the weak inversion transistor operation region. For analogue domain filtering doubly terminated LC ladder based filter topologies are thus highly desirable as they have very low sensitivities to component values: non-exact component values have a minimal effect on the realised transfer function. However, not all transfer functions are suitable for implementation via a LC ladder prototype, and even when the transfer function is suitable the synthesis procedure is not trivial. The modern circuit designer can thus benefit from an updated treatment of this synthesis procedure. This paper presents a methodology for the design of doubly terminated LC ladder structures making use of the symbolic maths engines in programs such as MATLAB and MAPLE. The methodology is explained through the detailed synthesis of an example 7th order bandpass filter transfer function for use in electroencephalogram (EEG analysis.

  5. Assessing Career Indecision.

    Science.gov (United States)

    Osipow, Samuel H.

    1999-01-01

    Reviews the history of career decision-making measures such as My Vocational Situation, Career Decision Scale, Career Factors Inventory, and others. Assesses Holland's contribution to the accurate measurement of career indecision. (SK)

  6. Triptycene-based ladder monomers and polymers, methods of making each, and methods of use

    KAUST Repository

    Pinnau, Ingo

    2015-02-05

    Embodiments of the present disclosure provide for a triptycene-based A-B monomer, a method of making a triptycene-based A-B monomer, a triptycene-based ladder polymer, a method of making a triptycene-based ladder polymers, a method of using triptycene-based ladder polymers, a structure incorporating triptycene-based ladder polymers, a method of gas separation, and the like.

  7. DUNDRUM Restriction-Intrusion of Liberty Ladders (DRILL) Audit Toolkit

    LENUS (Irish Health Repository)

    Kennedy, Harry G

    2011-09-01

    This series of rating \\'ladders\\' is intended to allow a quantitative and qualitative analysis of the use of restrictive and intrusive interventions as part of the therapeutic management of violence and aggression in psychiatric hospital settings. This is an evolving handbook. The ladders are currently organised to facilitate a behavioural analysis. Context, antecedents, behaviour, interventions, consequences are conceptualised as a series of events organised in temporal sequence so that causes, interactions and effects can be considered. The complexity of analysis possible is limited by the statistical power of the numbers of cases and events available. \\r\

  8. Ladder Arrangement Method for Stealth Design of Vivaldi Antenna Array

    Directory of Open Access Journals (Sweden)

    XiaoXiang He

    2013-01-01

    Full Text Available A novel stealth design method for X-band Vivaldi antenna arrays is proposed in this paper by ladder arrangement along radiation direction. Two-element array, eight-element array, and 3 × 7-element array are investigated in this paper. S parameters, RCSs, and radiation patterns are studied, respectively. According to the ladder arrangement of Vivaldi antennas presented, 16.3 dBsm maximal RCS reduction is achieved with satisfied radiation performance. As simulated and measured, results demonstrate that the effectiveness of the presented low RCS design method is validated.

  9. Notebook Positioning by Perceptual Map and Laddering Method

    Directory of Open Access Journals (Sweden)

    Mehdi Zaribaf

    2012-01-01

    Full Text Available The purpose of this applied paper is to determine positioning of laptops by perceptual map and laddering method. Data collection method was survey using questionnaire. First by using the views of computer experts of selected brands, including Sony, Acer, Asus, Dell and Msi, 5 among 20 attributes, which were considered more important, were selected through application of factor analysis technique. Then, after classification of these features by laddering technique, they were analyzed by using another questionnaire to determine the position of each brand in the perceptual map. We try to show factors and laptop brands position with regard two factors of price and quality in the resulted perceptual map.

  10. Tendon repair

    Science.gov (United States)

    Repair of tendon ... Tendon repair can be performed using: Local anesthesia (the immediate area of the surgery is pain-free) ... a cut on the skin over the injured tendon. The damaged or torn ends of the tendon ...

  11. Performance Careers

    Science.gov (United States)

    McAuliffe, Jason; And Others

    1977-01-01

    The field of music performance offers as many opportunities as there are individuals willing to attempt a breakthrough. Yet, this is one of the most difficult careers to succeed in. Here are eight varied articles on being a pop/rock/jazz instrumentalist or vocalist, a classical music instrumentalist or vocalist, a studio musician, a conductor, a…

  12. CAREER DEVELOPMENT

    Science.gov (United States)

    The Baltimore Summit Project on Career Development/PERFORMS Enhancement/360 Evaluations for All has made some progress. We have identified the fact that we cannot change the current Pass/Fail PERFORMS system to a tiered system. The current pass/fail system does not have a mechani...

  13. Career writing

    NARCIS (Netherlands)

    Rob Poell; dr. Frans Meijers; Mijke Post; Reinekke Lengelle

    2014-01-01

    This study investigates whether creative, expressive, and reflective writing contributes to the formation of a narrative career identity that offers students in higher education a sense of meaning and direction. The contents of writing done by students who participated in 2 two-day writing courses b

  14. Schroedinger operators with the q-ladder symmetry algebras

    Science.gov (United States)

    Skorik, Sergei; Spiridonov, Vyacheslav

    1994-01-01

    A class of the one-dimensional Schroedinger operators L with the symmetry algebra LB(+/-) = q(+/-2)B(+/-)L, (B(+),B(-)) = P(sub N)(L), is described. Here B(+/-) are the 'q-ladder' operators and P(sub N)(L) is a polynomial of the order N. Peculiarities of the coherent states of this algebra are briefly discussed.

  15. Towards flavored bound states beyond rainbows and ladders

    CERN Document Server

    El-Bennich, B; Paracha, M A; de Melo, J P B C

    2013-01-01

    We give a snapshot of recent progress in solving the Dyson-Schwinger equation with a beyond rainbow-ladder ansatz for the dressed quark-gluon vertex which includes ghost contributions. We discuss the motivations for this approach with regard to heavy-flavored bound states and form factors and briefly describe future steps to be taken.

  16. Magnetic interactions in calcium and sodium ladder vanadates

    NARCIS (Netherlands)

    de Graaf, C; Hozoi, L.; Broer-Braam, Henderika

    2004-01-01

    Magnetic interactions in ladder vanadates are determined with quantum chemical computational schemes using the embedded cluster model approach to represent the material. The available experimental data for calcium vanadate is accurately reproduced and the nature of the interladder interaction is est

  17. Education for Sustainability: A Snakes and Ladders Game?

    Directory of Open Access Journals (Sweden)

    Daniella Tilbury

    2015-07-01

    Full Text Available How to reference this articleTilbury, D. (2015. Education for Sustainability: A Snakes and Ladders Game?. Foro de Educación, 13(19, 7-10. doi: http://dx.doi.org/10.14516/fde.2015.013.019.000

  18. Towards flavored bound states beyond rainbows and ladders

    Energy Technology Data Exchange (ETDEWEB)

    El-Bennich, B.; Rojas, E.; Melo, J. P. B. C. de [Laboratório de Física Teórica e Computacional, Universidade Cruzeiro do Sul, São Paulo 01506-000 SP (Brazil); Paracha, M. A. [Laboratorio de Fisica Teorica e Computacional, Universidade Cruzeiro do Sul, Sao Paulo 01506-000 SP, Brazil and Centre for Advanced Mathematics and Physics, National University of Science and Technology, Islamabad (Pakistan)

    2014-11-11

    We give a snapshot of recent progress in solving the Dyson-Schwinger equation with a beyond rainbow-ladder ansatz for the dressed quark-gluon vertex which includes ghost contributions. We discuss the motivations for this approach with regard to heavy-flavored bound states and form factors and briefly describe future steps to be taken.

  19. Genus distribution of ladder type and cross type graphs

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    In this paper a method is given to calculate the explicit expressions of embedding genus distribution for ladder type graphs and cross type graphs. As an example, we refind the genus distri- bution of the graph Jn which is the first class of graphs studied for genus distribution where its genus depends on n.

  20. Chemodiversity of Ladder-Frame Prymnesin Polyethers in Prymnesium parvum

    DEFF Research Database (Denmark)

    Rasmussen, Silas Anselm; Meier, Sebastian; Andersen, Nikolaj Gedsted;

    2016-01-01

    Blooms of the microalga Prymnesium parvum cause devastating fish kills worldwide, which are suspected to be caused by the supersized ladder-frame polyether toxins prymnesin-1 and -2. These toxins have, however, only been detected from P. parvum in rare cases since they were originally described two...

  1. Genus distribution of ladder type and cross type graphs

    Institute of Scientific and Technical Information of China (English)

    WAN LiangXia; FENG KeQin; LIU YanPei; WANG DianJun

    2009-01-01

    In this paper a method is given to calculate the explicit expressions of embedding genus distribution for ladder type graphs and cross type graphs.As an example,we refind the genus distribution of the graph Jn which is the first class of graphs studied for genus distribution where its genus depends on n.

  2. SYNTHESIS AND CHARACTERIZATION OF LADDER-LIKE POLYDECYLSILSESQUIOXANE

    Institute of Scientific and Technical Information of China (English)

    Liao-yun Zhang; Dao-rong Dai; Ze Li; Rong-ben Zhang

    1999-01-01

    Ladder-like polydecylsilsesquioxane (LPDS) was synthesized by a preamminolysis reaction of decyltrichlorosilane with ethylene diamine, followed by hydrolysis and polycondensation reaction. LPDS is soluble in a nonpolar solvent such as heptane and insoluble in a high polar solvent such as methanol. It was charaterized by IR, 1H-NMR, 29Si-NMR, GPC and X-ray diffraction.

  3. Ladder contours are undetectable in the periphery: a crowding effect?

    Science.gov (United States)

    May, Keith A; Hess, Robert F

    2007-10-29

    We studied the perceptual integration of contours consisting of Gabor elements positioned along a smooth path, embedded among distractor elements. Contour elements either formed tangents to the path ("snakes") or were perpendicular to it ("ladders"). Perfectly straight snakes and ladders were easily detected in the fovea but, at an eccentricity of 6 degrees , only the snakes were detectable. The disproportionate impairment of peripheral ladder detection remained when we brought foveal performance away from ceiling by jittering the orientations of the elements. We propose that the failure to detect peripheral ladders is a form of crowding, the phenomenon observed when identification of peripherally located letters is disrupted by flanking letters. D. G. Pelli, M. Palomares, and N. J. Majaj (2004) outlined a model in which simple feature detectors are followed by integration fields, which are involved in tasks, such as letter identification, that require the outputs of several detectors. They proposed that crowding occurs because small integration fields are absent from the periphery, leading to inappropriate feature integration by large peripheral integration fields. We argue that the "association field," which has been proposed to mediate contour integration (D. J. Field, A. Hayes, & R. F. Hess, 1993), is a type of integration field. Our data are explained by an elaboration of Pelli et al.'s model, in which weak ladder integration competes with strong snake integration. In the fovea, the association fields were small, and the model integrated snakes and ladders with little interference. In the periphery, the association fields were large, and integration of ladders was severely disrupted by interference from spurious snake contours. In contrast, the model easily detected snake contours in the periphery. In a further demonstration of the possible link between contour integration and crowding, we ran our contour integration model on groups of three-letter stimuli

  4. Improved Design Techniques for Switched-Capacitor Ladder Filters.

    Science.gov (United States)

    Hsu, Teng-Hsien

    Using the new developments of MOS technology, switched-capacitor filters which consist of operational amplifiers, capacitors and switches in monolithic form, were widely investigated and put into practical forms. The switched-capacitor ladder filters have derived from doubly-terminated reactance two-ports. The main part of this dissertation is aimed at improving the efficiency and eliminating some shortcomings of the bilinear design technique. Two novel input stages which incorporate the necessary sample-and-hold function into the bilinear ladder filters are presented. The circuits are insensitive to parasitic capacitances. Some techniques to reduce the number of operational amplifier for bilinear switched-capacitor ladder filters are given. The number of top-plate parasitic-sensitive capacitors is less than in any of the existing design techniques. The clock feedthrough effects of pseudo-N-path switched-capacitor filter using lowpass filters as path filters are eliminated by the improved technique with doubling the number of operational amplifiers. Two-phase pseudo -N-path switched-capacitor filters can be obtained by tripling the number of operational amplifiers. The design technique for extending bilinear lowpass switched-capacitor ladder filters from odd orders to even orders is presented. One of the factors limiting the speed of bilinear switched-capacitor ladder filters is the delay-free loops. The techniques for breaking delay-free loops of low-order switched -capacitor filters are introduced. Digital ladder filters can be obtained through those switched-capacitor filters without delay-free loops. Numerical examples are given to compare the following digital filters: general cascade realization, wave digital filter, the digital filters derived from switched-capacitor filters - cascade and ladder. An improved high speed switched-capacitor linear interpolator, and nonlinear interpolators are described. The circuits are completely parasitic-insensitive. Two

  5. PLUME collaboration: Ultra-light ladders for linear collider vertex detector

    Energy Technology Data Exchange (ETDEWEB)

    Nomerotski, A., E-mail: A.Nomerotski@physics.ox.ac.uk [University of Oxford, Particle Physics, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH (United Kingdom); Bachynska, O. [DESY Hamburg, Notkestr. 85, D-22607 Hamburg (Germany); Baudot, J.; Chon-Sen, N.; Claus, G.; De Masi, R. [IPHC/IN2P3/CNRS and Universite de Strasbourg, Strasbourg (France); Deveaux, M. [IK-Frankfurt, Goethe-Universitaet, Frankfurt am Main (Germany); Dulinski, W. [IPHC/IN2P3/CNRS and Universite de Strasbourg, Strasbourg (France); Gauld, R. [University of Oxford, Particle Physics, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH (United Kingdom); Goffe, M. [IPHC/IN2P3/CNRS and Universite de Strasbourg, Strasbourg (France); Goldstein, J. [University of Bristol, Tyndall Avenue, Bristol BS8 1TL (United Kingdom); Gregor, I.-M. [DESY Hamburg, Notkestr. 85, D-22607 Hamburg (Germany); Hu-Guo, Ch.; Imhoff, M. [IPHC/IN2P3/CNRS and Universite de Strasbourg, Strasbourg (France); Koetz, U. [DESY Hamburg, Notkestr. 85, D-22607 Hamburg (Germany); Lau, W. [University of Oxford, Particle Physics, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH (United Kingdom); Muntz, C. [IK-Frankfurt, Goethe-Universitaet, Frankfurt am Main (Germany); Santos, C. [IPHC/IN2P3/CNRS and Universite de Strasbourg, Strasbourg (France); Schrader, C. [IK-Frankfurt, Goethe-Universitaet, Frankfurt am Main (Germany); Specht, M. [IPHC/IN2P3/CNRS and Universite de Strasbourg, Strasbourg (France); and others

    2011-09-11

    The PLUME (Pixelated Ladder with Ultra-Low Material Embedding) Collaboration is developing ultra-light ladders for the vertex detector for a future linear collider. The double-sided ladder will integrate the sensors, readout infrastructure and mechanical supports with the aim of total material budget of 0.3% of radiation length. The requirement of as light as possible construction is driven by physics, in particular by measurements requiring determination of the quark charge sign. The first prototype ladders were prepared and tested in the beam. The alignment issues for the ladders will be tested within the AIDA (Advanced European Infrastructures for Detectors at Accelerators) EU FP7 project.

  6. The Impact of Career Boundarylessness on Subjective Career Success: The Role of Career Competencies, Career Autonomy, and Career Insecurity

    Science.gov (United States)

    Colakoglu, Sidika N.

    2011-01-01

    Based on the theoretical frameworks of the career enactment and the stress perspectives, this study develops and tests a model in which career boundarylessness affects subjective career success through its effect on three career competencies--knowing-why, knowing-how, and knowing-whom--and career autonomy and career insecurity. The results…

  7. In pursuit of balance: Why your career path is unique

    Science.gov (United States)

    Rosenbloom, N. A.; Phillips, A. S.; Hannay, C.

    2012-12-01

    When NASA's Curiosity rover landed on Mars in August 2012, the room at JPL erupted in applause. Among the onlookers were highly trained scientists, engineers, programmers, and technicians with a wide range of career paths. The individuals remain anonymous, but each had a key role in the success of the mission. Behind every successful scientific project are the individuals who support the mission with their knowledge, commitment and curiosity. Whether by preference, personality, or ambition, many highly trained and qualified scientists choose to support science from behind-the-scenes. For these scientists, a supporting role in research remains a satisfying career choice. Other scientists attempt to race up the position ladder, eagerly taking leadership and/or more public roles. How do you decide which role is right for you, and how do you find balance in your chosen career path?

  8. Management Career in Education

    OpenAIRE

    Zaharia Valentina; Dogaru Mirela

    2012-01-01

    The concept of career has many meanings, generally being associated with the idea of moving up or advancement of a person in a particular field. Career Management career planning and development includes integration involves multiple functional interdependence of individual career planning, career planning and career development organization in education. Management planning and modeling career while individuals progress in an organization according to organizational needs assessments, and pe...

  9. Means – End Chain Theory and Laddering Technique: Applications in Consumer Behavior Research

    Directory of Open Access Journals (Sweden)

    Ayca Kangal

    2013-04-01

    Full Text Available Means – end chain (MEC theory and laddering technique uncovers the decision making process of consumers related to marketing offerings such as goods, services and experiences in a cognitive approach from a consumer perspective view which are popularly used approaches in marketing context. The purpose of the study is to discusss and present the laddering techique to Turkish literature, which is a frequently used qualitative research method in consumer behavior, both with related theoretical structure and practice. With this purpose, the overview of the literature within the frame of means – end chain theory, practices in consumer behavior, laddering technique, data collection, data analyze and interperation steps, limits of the laddering technique and alternatives of soft laddering (hard laddering is discussed. Laddering technique among with alternative data collection tools are anticipated Turkish researchers’ interest.

  10. Bladder exstrophy repair

    Science.gov (United States)

    Bladder birth defect repair; Everted bladder repair; Exposed bladder repair; Repair of bladder exstrophy ... Bladder exstrophy repair involves two surgeries. The first surgery is to repair the bladder and the second one is to attach ...

  11. Criminal Careers and "Career Criminals"

    National Research Council Canada - National Science Library

    Blumstein, Alfred; Cohen, Jacqueline; Roth, Jeffrey A; Visher, Christy A

    1986-01-01

    ..., and Christy A. Visher, editors Panel on Research on Criminal Careers Committee on Research on Law Enforcement and the Administration of Justice Commission on Behavioral and Social Sciences and Education National Research Council National Academy Press Washington, D.C.1986 i Copyrighttrue Please breaks inserted. are Page files. accidentally typesetting be...

  12. Does Trait Emotional Intelligence Predict Unique Variance in Early Career Success Beyond IQ and Personality?

    OpenAIRE

    Haro García, José Manuel de; Castejón Costa, Juan Luis

    2014-01-01

    In order to determine the contribution of emotional intelligence (EI) to career success, in this study, we analyzed the relationship between trait EI (TEI), general mental ability (GMA), the big five personality traits, and career success indicators, in a sample of 130 graduates who were in the early stages of their careers. Results from hierarchical regression analyses indicated that TEI, and especially its dimension “repair,” has incremental validity in predicting one of the career success ...

  13. Does Trait Emotional Intelligence Predict Unique Variance in Early Career Success Beyond IQ and Personality?

    OpenAIRE

    Haro García, José Manuel de; Castejón Costa, Juan Luis (coord.)

    2014-01-01

    In order to determine the contribution of emotional intelligence (EI) to career success, in this study, we analyzed the relationship between trait EI (TEI), general mental ability (GMA), the big five personality traits, and career success indicators, in a sample of 130 graduates who were in the early stages of their careers. Results from hierarchical regression analyses indicated that TEI, and especially its dimension “repair,” has incremental validity in predicting one of the career success ...

  14. Selectivity of fish ladders: a bottleneck in Neotropical fish movement

    Directory of Open Access Journals (Sweden)

    Carlos Sérgio Agostinho

    2007-01-01

    Full Text Available Although dozens of fish ladders have been constructed at dams of Brazilian reservoirs, there are few studies evaluating their efficiency as a tool for the conservation of Neotropical ichthyofauna, especially for migratory species. Therefore, the present study evaluated the selectivity of the species that entered and ascended the fish ladder located next to Lajeado Dam (Luis Eduardo Magalhães Hydroelectric Power Plant on the Tocantins River. Samples were taken monthly from November, 2002 through October, 2003, in the resting pools of the ladder, using cast nets, and in the downstream stretch, using gillnets. The selectivity of the ladder in attracting fish was evaluated by comparing the occurrence, relative abundance, dominance and the congruence of abundance ranks of migratory and non-migratory species in the ladder and in the stretch of river immediately downstream. Species richness and fish abundance in the resting pools were used to evaluate selectivity along the ladder. The effects on selectivity by temporal variations in water level downriver and maximum flow velocity in the fish ladder were also analyzed. Out of the 130 species recorded downriver, 62.3% were caught in the ladder, and migratory species were clearly favored. However, more than 2/3 of the catch belonged to only three species (Rhaphiodon vulpinus, Psectrogaster amazonica and Oxydoras niger. Although the majority of the species that entered the ladder were able to reach its top, there was a sharp reduction in abundance of individuals towards the top. Temporal variations in the water level below the dam influenced richness and abundance of fish concentrated downstream and in the ladder, with lower values during periods of low water. In the ladder, a maximum flow velocity of 2.3 m/s, although also selective, proved to be more appropriate for fish ascension than a velocity of 2.8 m/s. It was concluded that the entry and ascension of the fish in the ladder were not congruent with

  15. Career counseling in the new career era: A study about the influence of career types, career satisfaction and career management on the need for career counseling.

    OpenAIRE

    Forrier, Anneleen; Sels, Luc; Verbruggen, Marijke

    2005-01-01

    We investigate whether the perceived need for employer-independent career counseling differs between individuals according to their career type. We identify six different career types, basically varying in terms of career path and career aspirations: the bounded, boundaryless, staying, homeless, trapped and released career type. We investigate moreover (1) whether career satisfaction mediates the relationship between career types and the perceived need for career counseling and (2) whether th...

  16. Women's Career Development Patterns.

    Science.gov (United States)

    Schreiber, Pamela J.

    1998-01-01

    Women's career development is characterized by balance of work and family, career interruptions, and diverse career paths. Alternative work arrangements such as flexible schedules, telecommuting, and entrepreneurial opportunities may offer women more options for work. (SK)

  17. Bethe–Salpeter studies of mesons beyond rainbow-ladder

    Directory of Open Access Journals (Sweden)

    Williams R.

    2010-04-01

    Full Text Available We investigate the masses of light mesons from a coupled system of Dyson–Schwinger and Bethe– Salpeter equations. We explicitly take into account dominant non-Abelian and sub-leading Abelian contributions to the dressed quark-gluon vertex. We also include unquenching effects in the form of hadronic resonance contributions via the back-reaction of pions. We construct the corresponding Bethe–Salpeter kernel that satisfies the axial-vector Ward-Takahashi identity. Our numerical treatment fully includes all momentum dependencies with all equations solved completely in the complex plane. This approach goes well beyond the rainbow-ladder approximation and permits us to investigate the relative impact of different corrections beyond rainbow-ladder on the properties of mesons. We find that sub-leading Abelian corrections are further dynamically suppressed, and that our results supersede early qualitative predictions with significantly simpler truncation schemes.

  18. Design of a 325 MHz ladder - type RFQ for FAIR

    Energy Technology Data Exchange (ETDEWEB)

    Schuett, Maximilian; Brodhage, Robert; Almomani, Ali; Ratzinger, Ulrich [Institut fuer Angewandte Physik, Goethe-Universitaet Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt am Main (Germany)

    2014-07-01

    For the research program with cooled antiprotons at FAIR a dedicated 70 MeV, 70 mA proton injector is required. The first rf accelerator element is a 325 MHz RFQ accelerating from 95 keV to 3.0 MeV. RFQ's beyond 300 MHz were realized in 4-Vane-type geometry so far. At IAP there is a tradition in 4-Rod-type RFQ development. This RFQ-type is dominating at lower frequencies. Very promising results have been reached with a ladder type-RFQ, which has been investigated during 2013. We show most recent 3D simulations of the general layout and of a whole cavity demonstrating the power of a ladder type RFQ. An RFQ layout for the new FAIR proton injector is presented. In comparison with a traditional 4-Rod RFQ approach the geometry is more convenient at high frequencies.

  19. Career advancement and professional development in nursing.

    Science.gov (United States)

    Adeniran, Rita K; Smith-Glasgow, Mary Ellen; Bhattacharya, Anand; Xu, Yu

    2013-01-01

    Excellence underscores the need for nurses to keep their skills and competencies current through participation in professional development and career advancement. Evidence suggests that internationally educated nurses (IENs) progress relatively slowly through the career ladder and participate less in professional development compared with nurses educated in the United States (UENs). Mentorship and self-efficacy are considered major determinants of career advancement. The aim of the study was to understand the differences in levels of mentorship function and self-efficacy as well as the differences in participation in professional development and career advancement between UENs and IENs. A descriptive survey design was implemented using a Web-based survey. Significant disparities were noted in the role model function of mentoring and some professional development and career advancement measures between UENs and IENs. Mentorship is essential for professional growth. Sociodemographic characteristics of mentors are important because mentors are role models. Standardized career advancement structures are needed to promote professional growth. Published by Mosby, Inc.

  20. Snakes and ladders: localized solutions of plane Couette flow

    CERN Document Server

    Schneider, Tobias M; Burke, John

    2009-01-01

    We demonstrate the existence of a large number of exact solutions of plane Couette flow, which share the topology of known periodic solutions but are localized in space. Solutions of different size are organized in a snakes-and-ladders structure strikingly similar to that observed for simpler pattern-forming PDE systems. These new solutions are a step towards extending the dynamical systems view of transitional turbulence to spatially extended flows.

  1. Laplace-Runge-Lenz vector, ladder operators and supersymmetry

    Energy Technology Data Exchange (ETDEWEB)

    Mota, R.D. [Unidad Profesional Interdisciplinaria de Ingenieria y Tecnologias Avanzadas, Mexico DF (Mexico)]. E-mail: mota@gina.esfm.ipn.mx; Garcia, J.; Granados, V.D. [Departamento de Fisica, Escuela Superior de Fisica y Matematicas, Mexico DF (Mexico)

    2001-03-16

    We show that the Laplace-Runge-Lenz vector (LRLV) generates the Infeld-Hull radial factorization and the pair of isospectral Hamiltonians for the non-relativistic Kepler-Coulomb quantum problem. To do this we only use the LRLV and arguments of general soundness. Finally, the well known restrictions on the orbital angular momentum and the principal quantum numbers are rederived from the corresponding ladder operators. (author)

  2. Operational Simulation of LC Ladder Filter Using VDTA

    Directory of Open Access Journals (Sweden)

    Praveen Kumar

    2017-01-01

    Full Text Available In this paper, a systematic approach for implementing operational simulation of LC ladder filter using voltage differencing transconductance amplifier is presented. The proposed filter structure uses only grounded capacitor and possesses electronic tunability. PSPICE simulation using 180 nm CMOS technology parameter is carried out to verify the functionality of the presented approach. Experimental verification is also performed through commercially available IC LM13700/NS. Simulations and experimental results are found to be in close agreement with theoretical predictions.

  3. Quantum Phase Transitions and Dimerized Phases in Frustrated Spin Ladder

    Institute of Scientific and Technical Information of China (English)

    WEN Rui; LIU Guang-Hua; TIAN Guang-Shan

    2011-01-01

    In this paper, we study the phase diagram of a frustrated spin ladder model by applying the bosonization technique and the density-matrix renormalization-group (DMRG) algorithm. Effect of the intra-chain next-nearestneighbor (NNN) super-exchange interaction is investigated in detail and the order parameters are calculated to detect the emergence of the dimerized phases. We find that the intra-chain NNN interaction plays a key role in inducing dimerized phases.

  4. On the impedance of infinite LC ladder networks

    Science.gov (United States)

    Klimo, Paul

    2017-01-01

    The subject of electrical impedance is on the syllabi of most undergraduate courses in physics and electrical engineering. For example, Richard Feynman in his famous undergraduate text Lectures on Physics shows how to calculate the impedance of an infinite LC ladder. However, the formula he obtains has no useful physical interpretation if considered in the steady state frequency domain. In fact the value of this impedance becomes infinite unless one assumes that the energy flow along the infinite LC ladder is spatially uniform and in one direction only. This ad-hoc assumption, which renders the solution non-causal, is entirely unnecessary if the problem is considered in the time domain. It is important for students to appreciate that the concept of impedance works well only in dissipative circuits where the effects of transients are largely short lived. The purpose of this paper is to show that the same problem treated in the time domain by the Laplace transform method provides a qualitatively different and more satisfying explanation. We show that the current response of an infinite LC ladder, which is in the zero state before a causal harmonic driving voltage is applied, contains a significant non-harmonic component. This component, which is present in addition to the forced harmonic waveform, decays only very slowly and extracts an infinite amount of energy from the source.

  5. F/FB-111 Avionic Systems Career Ladder, AFSC 452X3

    Science.gov (United States)

    1990-07-01

    ANTENNAS TABLE 19B ELECTRONICS PRINCIPLES USED BY 50 PERCENT OR MORE OF DAFSC 45253B PERSONNEL DIRECT.ALTERNATING CURRENT ELECTRO/MECHANICAL DEVICES SOLID...19C ELECTRONICS PRINCIPLES USED BY 50 PERCENT OR MORE OF DAFSC 45253C PERSONNEL DIRECT/ALTERNATING CURRENT ELECTRO/MECHANICAL DEVICES SOLID-STATE...with that of other similar Air Force special- ties Generally, first- and second-enlistment groups of the DAFSC 452X3 52 TABLE 19A ELECTRONICS

  6. Electronic Computer and Switching Systems Career Ladder AFSC 305X4.

    Science.gov (United States)

    1984-06-01

    with 47 of those tasks having a TE rating of 3.58 or higher. Several of these tasks are covered in the electronics principles blocks of the POI which...additional source of information for 305X4 training managers is the recently completed study of electronic fundamental- required. The electronics principles inventory...EPI) is a knowledge-based job inventory which identifies the range of electronics principles personnel need to perform electronics- oriented

  7. Missile Systems Analyst Career Ladder, AFSC 411X0A (Formerly 316X0G).

    Science.gov (United States)

    1985-07-01

    45 * ELECTRONICS PRINCIPLES INVENTORY ...................... .... 53 COMPARISON TO PREVIOUS SURVEYS ......... ......... . 60...Average training emphasis is 1.12 *Average task difficulty is 5.00 52 ELECTRONICS PRINCIPLES INVENTORY An additional source of information for 316XOG...training developers is the electronics principles inventory (EPI). The EPI is a 1,366 item, knowledge- based inventory which identifies the range of

  8. Missile Electronic Equipment Career Ladder, AFSC 411XOA (Formerly AFSC 316X2G).

    Science.gov (United States)

    1986-03-01

    Plan of Instruction ........ ........ 31 Analysis of Equipment Used at the Technicai School....... 36 ELECTRONICS PRINCIPLES INVENTORY...two courses at Chanute AFB IL: Electronics Principles Course AQR31020-0O2, Blocks I through IX, followed by one of two separate airman basic resident...Blocks I through IV of Electronics Principles Course AQR31020- 002 before advancing to the ABR courses. Secondly, the former 316X2G ABR courses were

  9. Antenna/Cable Systems Project/Maintenance Action Career Ladder, AFSC 361X0

    Science.gov (United States)

    1990-05-01

    32 Electronics Principles (EP) ..... .................. ... 36 ANALYSIS OF MAJOR COMMANDS (MAJCOM... Electronics Principles (EP) The ELECTRICAL FUNDAMENTALS paragraph of the STS and the electrical fundamentals taught in the ABR course can be evaluated using...data collected by the Electronics Principles Inventory (EPI). The EPI is a knowledge-based inventory containing 712 electronics principles , skills, and

  10. Airborne Warning and Control Radar Career Ladder, AFSC 328X2.

    Science.gov (United States)

    1984-11-01

    difficulty, the simulator approach is appropriate for both ground and airborne personnel. Electronics principles instruction may be an area of training where...interrogation systems. The course includes 18 weeks of electronics principles training. Basic resident training is conducted without the benefit of actual mission...training in electronics principles . The Occupational Measurement Center recently completed a survey of electronics principles required across several

  11. Disaster Preparedness Utilization Field/Disaster Preparedness Career Ladder, AFSCs 05XX/242X0

    Science.gov (United States)

    1988-11-01

    STG219, N=12) PERCENT MEMBERS TASKS PERFORMING E285 TYPE CORRESPONDENCE, SUCH AS REPORTS OR RECORDS 100 E252 MAINTAIN DISASTER PREPAREDNESS (DP...TECHNICAL ORDER FILES 67 E252 MAINTAIN DISASTER PREPAREDNESS (DP) OFFICE ADMINISTRATIVE FILES 56 A9 TABLE AlO REPRESENTATIVE TASKS PLRFORMED BY CONTROL

  12. Strategic Aircraft Maintenance Career Ladder AFSC 452X4 (Formerly AFSC 431X1)

    Science.gov (United States)

    1989-02-01

    8217 - I ’DCCN * to A4 AO N6* A- I in V% in0.4 .0 -’- NI- 0 , Lij ~ ~ ~ N. 0N Nto Nwa4 aUr- m 4 0 r- NF 0 Nif # CN .4 - -4 eqfa 4P-f C) N D , a f--0 - c 0...0 a o o 0 𔃺 000 a c aa. if .9 x. .19 6 0’ 0’ NIf ~~CZ. I= I I ~ c .0 U, 1.3 U .4 .4 4N -4 N 0.04 MM 0 00 4 01&i NM 4-INI Gf P4 *~~~ P.. tf ~ .- 4 N 10...I0’C4 ’A Ln C, M0 I0 2 04 w14 sU C 6 ’o 44naL 41 42 a 4m1 42L 4 1 4 411 .. 41 CU4i NJ -4 .0 :1 6 6 I 0 u0 qr a Z o1. C- b10 0 S. 1. 41 U ’ 0~ -W 4

  13. Avionic Inertial and Radar Navigation Systems Career Ladder AFSC 328X4.

    Science.gov (United States)

    1984-06-01

    OR LABEL EQUIPMENT 80 F173 INSPECT EGRESS SYSTEM SAFETY PIN INSTALLATION 80 N464 REMOVE OR REPLACE GENERAL PURPOSE OR NAVIGATIONAL COMPUTERS 80 G191...ISOLATE MALFUNCTIONS TO INERTIAL PLATFORMS 60 F173 INSPECT EGRESS SYSTEM SAFETY PIN INSTALLATION 60 J294 ISOLATE MALFUNCTIONS TO INERTIAL COMPUTERS...COMPUTERS 72 N457 OPERATIONALLY CHECK GENERAL PURPOSE OR NAVIGATIONAL COMPUTER SYSTEMS 71 F173 INSPECT EGRESS SYSTEM SAFETY PIN INSTALLATION 71 4

  14. Pavements Maintenance and Construction Equipment Career Ladders AFSCs 551X0 and 551X1

    Science.gov (United States)

    1991-09-01

    Cb C-)~C I. l I-UJ m u .UJOLLJOcLZCC I- I jw r -c -LJ Lii U)U LLU C> " -C LUz = > UJ L 0J-C u C - M C -Rc . c -C :m -J -=), C54u I. a- I- ol w~ :3. co...likewise not analyzed. USAFOMS Job Inventory and occupational survey data were compared with Air Force regulations, publica - tions, minutes from the...0) C < 0 CL- 00 u, V 4 01 0 -0 1.4 >z z U. z I-" u i -i -W 0 0 LL4 j .- jA 4- -J iD -. U CL - P. C- LUz -j 0- x 4-4 0 L-U L 0 0 0U U. .4 1- U. .J L 0

  15. Cost Analysis Career Ladder AFSC 674X0 (Formerly 691X0).

    Science.gov (United States)

    1987-01-01

    by the amount of time they spend collating, decollating, and stapling publica - tions; participating in combined working analysis groups; formulating...CD or C-) x- 4- L Z .a ~LL ~ I LU JIJ~ COO . C. L)C uCL -.1j dcmZ: Ce I~- L$~ I V) 2C= 0CD ZLU V 1) 0cd LU C) l--j I- c cc co m -- LUZ oc Z L& C. V) 2

  16. Flight Engineer (Helicopter Qualified) Career Ladder, AFS 113X0B.

    Science.gov (United States)

    1982-12-01

    Aircrew Instructors (GRPO55). 27 rAm-4 4 M 4 . - 4 N- r.-M~ c eLt -4 c-no N 0 UO ONN 04Z ru~U u2 020cn u W OR :1 u 04 0 czn 282 TABLE 10 TASKS WHICH BEST...CORRESPONDENCE 20 63 -43 C84 PREPARE APRs 15 53 -38 B53 SUPERVISE FLIGHT ENGINEER SPECIALISTS (AFSC 11350B) 21 58 -37 D99 COUNSEL TRAINEES ON TRAINING

  17. Medical Service Career Ladders AFSC 902X0/A/B/C.

    Science.gov (United States)

    1986-06-01

    ANNOTATE DD FORMS 2005 (PRIVACY ACT STATEMENT- HEALTH CARE RECORDS) 84 E297 MAINTAIN OUTPATIENT APPOINTMENT BOOKS 82 0712 MAKE DISTRIBUTION OF AF FORMS 1042...NEUROLOGICAL PATIENTS 78 E297 MAINTAIN OUTPATIENT APPOINTMENT BOOKS 70 E72 INITIATE OR ANNOTATE SF FORMS 600 (HEALTH RECORD- CHRONOLOGICAL RECORD OF...NEUROLOGICAL EQUIPMENT 75 S858 APPLY SUBDERMAL ELECTRODES FOR EEG 75 E297 MAINTAIN OUTPATIENT APPOINTMENT BOOKS 70 E313 PREPARE OR SUBMIT DAILY PATIENT

  18. Airport Careers. Aviation Careers Series. Revised.

    Science.gov (United States)

    Zaharevitz, Walter

    This booklet, one in a series on aviation careers, outlines the variety of careers available in airports. The first part of the booklet provides general information about careers at airports, while the main part of the booklet outlines the following nine job categories: airport director, assistant airport director, engineers, support personnel,…

  19. Airline Careers. Aviation Careers Series. Revised.

    Science.gov (United States)

    Zaharevitz, Walter

    This booklet, one in a series on aviation careers, outlines the variety of careers available in airlines. The first part of the booklet provides general information about careers in the airline industry, including salaries, working conditions, job requirements, and projected job opportunities. In the main part of the booklet, the following 22 job…

  20. Career competencies for the modern career

    NARCIS (Netherlands)

    Kuijpers, M.A.C.T.; Scheerens, J.

    2006-01-01

    Career development gains new meaning in the context of employability demands in a knowledge economy. In this context, increased mobility, a dynamic work environment, and an increased level of career support from employers are seen as characteristics of a modern career. All of these characteristics p

  1. Career competencies for the modern career

    NARCIS (Netherlands)

    Kuijpers, Marinka; Scheerens, Jaap

    2006-01-01

    Career development gains new meaning in the context of employability demands in a knowledge economy. In this context, increased mobility, a dynamic work environment, and an increased level of career support from employers are seen as characteristics of a modern career. All of these characteristics

  2. DNA Ladder的制备%Preparation of DNA Ladder

    Institute of Scientific and Technical Information of China (English)

    王俐; 董卫华; 张俊河; 王天云

    2011-01-01

    背景:目前,制备DNA 分子量标准的方法主要有2 种,一种是用限制性内切酶消化某种DNA,另一种是利用PCR 扩增,2 种方法各有优缺点.在前期采用PCR 技术在前期扩增100~500 bp 片段的基础上,实验室又成功扩增出600~1 000 bp片段,PCR 产物经过纯化,混匀,制备的DNA Ladder,结果制备DNA Ladder 的条带清晰,易于识别,可完全与公司商品化的DNA Ladder 相比,完全可用于分子生物学实验.目的:利用PCR 扩增技术制备DNA 分子量标准参照物.方法:自行构建了一种特殊适宜扩增的质粒pUC-DNA,根据pUC-DNA 的基因序列,利用primer5.0 设计能特异扩增100~1 000 bp 的PCR 引物.PCR 扩增出100~1 000 bp 大小的DNA 片段,在2%琼脂糖凝胶中电泳观察结果.用凝胶回收试剂盒回收目的PCR 产物,测序结果与pUC-DNA 上基因序列进行序列比对,Blast 进行同源性分析.将PCR 产物用酚/氯仿抽提,乙醇沉淀,按比例混匀,即可使用.结果与结论:利用PCR 技术能够成功扩增出100~1 000 bp 条带,片段大小与预期结果相符,片段序列与GenBank 序列完全一致,利用回收片段制备的DNA Ladder 条带清晰,可与同类产品相比.%BACKGROUND: DNA molecular weight standard (DNA Ladder) is one of necessary reagents in molecular biological laboratory.It can correctly measure the length of DNA fragments and serve as the DNA molecular weight standard. Now, there are two methods to prepare the DNA Ladder, one is PCR technique, the other is through DNA digestion by restriction enzyme. The two methods all have some merits and drawbacks. The first one can produce standard bands, but is difficult to obtain large bands.The second method is to prepare DNA Ladder restriction digestion of plasmid or phage DNA. In previous study, we have amplified 100-500 bp DNA fragments by using PCR technique, then purified the PCR product and prepared DNA Ladder. The bands of the prepared DNA Ladder were clear, higher

  3. Chain Growth Cross Coupling Polymerizations Towards Chiral and Ladder Main Chain Polymers

    Science.gov (United States)

    2014-11-20

    SECURITY CLASSIFICATION OF: We developed a new method to synthesize rigid ladder polymers using efficient, clean palladium catalyzed annulation...reactions with low catalyst loading (1 mol%). Rigid ladder polymers with benzocyclobutene backbone linkages can be synthesized from copolymerization of...High molecular weight (10-40 kDa) rigid ladder polymers can be obtained with complete monomer conversions. Diverse monomers also gave different, fixed

  4. The eel ladders of the double slot pass Geesthacht; Aalleitern am Doppelschlitzpass Geesthacht

    Energy Technology Data Exchange (ETDEWEB)

    Adam, Beate [Institut fuer angewandte Oekologie, Kirtorf-Wahlen (Germany); Neumann, Christof [Knabe Enders Duehrkop Ingenieure GmbH, Hamburg (Germany)

    2012-07-01

    To facilitate the upstream migration of glass eels, four eel ladders were installed within and next to the fish pass at the Geesthacht dam. Similar to other fish pass construction types it was necessary to ensure that the ladders could be both detected and passed by the juvenile eels. A custom built monitoring station will be used to guarantee the correct functioning of the eel ladders and subsequently document the eel migration from the beginning of the next season. (orig.)

  5. Progress in the Supramolecular Architecture-directed Synthesis of Perfect Ladder Polysiloxanes

    Institute of Scientific and Technical Information of China (English)

    C; C; Han

    2007-01-01

    1 Introduction Ladder polysiloxanes (LPSs) including organo-bridged ladder polyorganosiloxanes (R-OLPSs, R is side group) and ladder polyorganosilsesquioxanes (R-LPSQs) have intrigued polymer chemists for about 50 years due to their excellent resistance to all kinds of degradations. However, their synthesis has been a great challenge to polymer chemists. Here, we describe a new approach based on supramolecular concerted interactions as follows.2 Results2.1 Synthesis of Perfect R-OLPSsA series of real ...

  6. Solutions of Bethe-Salpeter and Light-Front equations with cross-ladder kernel

    CERN Document Server

    Carbonell, J

    2005-01-01

    By method developed in our previous paper we solve the Bethe-Salpeter (BS) equation for the kernel given by sum of ladder and cross-ladder exchanges. We solve also corresponding equation in light-front dynamics (LFD), where we add the time-ordered stretched boxes. Cross-ladder contribution is large and attractive, whereas the influence of stretched boxes is negligible. Both approaches -- BS and LFD -- give very close results.

  7. Design and construction of double-sided silicon ladders for the L3 microvertex detector

    Energy Technology Data Exchange (ETDEWEB)

    Ambrosi, G.; Babucci, E.; Battiston, R.; Biasini, M.; Easo, S.; Krastev, V.; Pauluzzi, M.; Santocchia, A.; Bay, A.; Burger, W.J.; Extermann, P.; Perrin, E.; Susinno, G.; Brooks, M.; Kapustinsky, J.S.; Kinnison, W.W.; Lee, D.M.; Mills, G.B.; Thompson, T.C.; DiBitonto, D.; Pennington, T.; Subhani, K.; Hauviller, C. (Univ. Degli Studi di Perugia (Italy) INFN, Perugia (Italy) Univ. of Geneva (Switzerland) Los Alamos National Lab., Los Alamos, NM (United States) Univ. of Alabama, Tuscaloosa, AL (United States) European Lab. for Particle Physics (CERN), Geneva (Switzerland))

    1994-04-21

    The techniques used in the construction of the double-sided ladders for the L3 Silicon Microvertex Detector (SMD) are presented. The detector consists of two cylindrical layers, each of 12 ladders, with double-sided silicon detectors which provide r-phi and z coordinates measurements. This description includes ladder mechanical design and the assembly. A novel solution to readout the z-coordinates is presented. It optimizes very effectively the removal of heat generated by the readout electronics and minimizes the radiation length in the central region. Some results from the survey of the individual ladders are also discussed. (orig.)

  8. Development of ultra-light pixelated ladders for an ILC vertex detector

    CERN Document Server

    Chon-Sen, N; Claus, G; De Masi, R; Deveaux, M; Dulinski, W; Goffe, M; Goldstein, J; Gregor, I -M; Imhoff, Ch Hu-Guo M; Müntz, C; Nomerotski, A; Santos, C; Schrader, C; Specht, M; Stroth, J; Winter, M

    2010-01-01

    The development of ultra-light pixelated ladders is motivated by the requirements of the ILD vertex detector at ILC. This paper summarizes three projects related to system integration. The PLUME project tackles the issue of assembling double-sided ladders. The SERWIETE project deals with a more innovative concept and consists in making single-sided unsupported ladders embedded in an extra thin plastic enveloppe. AIDA, the last project, aims at building a framework reproducing the experimental running conditions where sets of ladders could be tested.

  9. Hypospadias repair

    Science.gov (United States)

    ... the problem. If the repair is not done, problems may occur later on such as: Difficulty controlling and directing urine stream A curve in the penis during erection Decreased fertility Embarrassment about appearance of penis Surgery ...

  10. LGBT Career Development

    Science.gov (United States)

    Gedro, Julie

    2007-01-01

    In this paper, I would like to open a conversation with my HRD colleagues about the issues related to Lesbian, Gay, Bisexual and Transgender (LGBT) career development. This paper provides some insights about LGBT career development, analyzing the factors that distinguish LGBT career development from heterosexual career development.

  11. Multi-material size optimization of a ladder frame chassis

    Science.gov (United States)

    Baker, Michael

    The Corporate Average Fuel Economy (CAFE) is an American fuel standard that sets regulations on fuel economy in vehicles. This law ultimately shapes the development and design research for automakers. Reducing the weight of conventional cars offers a way to improve fuel efficiency. This research investigated the optimality of an automobile's ladder frame chassis (LFC) by conducting multi-objective optimization on the LFC in order to reduce the weight of the chassis. The focus of the design and optimization was a ladder frame chassis commonly used for mass production light motor vehicles with an open-top rear cargo area. This thesis is comprised of two major sections. The first looked to perform thickness optimization in the outer walls of the ladder frame. In the second section, many multi-material distributions, including steel and aluminium varieties, were investigated. A simplified model was used to do an initial hand calculation analysis of the problem. This was used to create a baseline validation to compare the theory with the modeling. A CAD model of the LFC was designed. From the CAD model, a finite element model was extracted and joined using weld and bolt connectors. Following this, a linear static analysis was performed to look at displacement and stresses when subjected to loading conditions that simulate harsh driving conditions. The analysis showed significant values of stress and displacement on the ends of the rails, suggesting improvements could be made elsewhere. An optimization scheme was used to find the values of an all steel frame an optimal thickness distribution was found. This provided a 13% weight reduction over the initial model. To advance the analysis a multi-material approach was used to push the weight savings even further. Several material distributions were analyzed and the lightest utilized aluminium in all but the most strenuous subjected components. This enabled a reduction in weight of 15% over the initial model, equivalent to

  12. Valence bond and von Neumann entanglement entropy in Heisenberg ladders.

    Science.gov (United States)

    Kallin, Ann B; González, Iván; Hastings, Matthew B; Melko, Roger G

    2009-09-11

    We present a direct comparison of the recently proposed valence bond entanglement entropy and the von Neumann entanglement entropy on spin-1/2 Heisenberg systems using quantum Monte Carlo and density-matrix renormalization group simulations. For one-dimensional chains we show that the valence bond entropy can be either less or greater than the von Neumann entropy; hence, it cannot provide a bound on the latter. On ladder geometries, simulations with up to seven legs are sufficient to indicate that the von Neumann entropy in two dimensions obeys an area law, even though the valence bond entanglement entropy has a multiplicative logarithmic correction.

  13. Breathers in Josephson junction ladders: Resonances and electromagnetic wave spectroscopy

    DEFF Research Database (Denmark)

    Miroshnichenko, A. E.; Flach, S.; Fistul, M.

    2001-01-01

    We present a theoretical study of the resonant interaction between dynamical localized states (discrete breathers) and linear electromagnetic excitations (EE's) in Josephson junction ladders. By making use of direct numerical simulations we find that such an interaction manifests itself by resonant...... steps and various sharp switchings (voltage jumps) in the current-voltage characteristics. Moreover, the power of ac oscillations away from the breather center (the breather tail) displays singularities as the externally applied dc bias decreases. All these features may be mapped to the spectrum of EE...

  14. Diquark bound states at far beyond ladder truncation

    CERN Document Server

    Jinno, Ryusuke; Mishima, Go

    2015-01-01

    The Bethe-Salpeter equation in the diquark channel is investigated by employing the Dyson-Schwinger method together with the Munczek-Nemirovsky model. The novelty of our study is a resummation of completely-crossed ladder diagrams in the Bethe-Salpeter kernel. These diagrams are enhanced due to their color factors in the diquark channel, but not in the meson channel. As a result of our analysis, it is suggested that diquark bound-state solutions exist in the Bethe-Salpeter equation, which have been thought to be absent.

  15. Exact solutions and ladder operators for a new anharmonic oscillator

    Energy Technology Data Exchange (ETDEWEB)

    Dong Shihai [Programa de Ingenieria Molecular, Instituto Mexicano del Petroleo, Lazaro Cardenas 152, 07730 Mexico DF (Mexico)]. E-mail: dongsh2@yahoo.com; Sun Guohua [Instituto de Investigaciones en Matematicas Aplicadas y en Sistemas, UNAM, A.P. 20-726, Del. Alvaro Obregon, 01000 Mexico DF (Mexico); Lozada-Cassou, M. [Programa de Ingenieria Molecular, Instituto Mexicano del Petroleo, Lazaro Cardenas 152, 07730 Mexico DF (Mexico)

    2005-06-06

    In this Letter, we propose a new anharmonic oscillator and present the exact solutions of the Schrodinger equation with this oscillator. The ladder operators are established directly from the normalized radial wave functions and used to evaluate the closed expressions of matrix elements for some related functions. Some comments are made on the general calculation formula and recurrence relation for off-diagonal matrix elements. Finally, we show that this anharmonic oscillator possesses a hidden symmetry between E(r) and E(ir) by substituting r->ir.

  16. Yang-Lee Circle Theorem for an Antiferromagnetic Heisenberg Ladder

    Institute of Scientific and Technical Information of China (English)

    王先智

    2001-01-01

    The Yang-Lee zeros of an antiferromagnetic Heisenberg ladder model are determined. It is found that if J4≤0 Yang-Lee zeros are located on the unit circle and on the negative real axis in the complex activity plane. In particular, if J4≤0 and 2J2≥J4, Yang-Lee zeros are located on the unit circle and the Yang-Lee circle theorem is valid. If J4 > 0, Yang-Lee zeros are located on some complicated curves.

  17. Chemodiversity of Ladder-Frame Prymnesin Polyethers in Prymnesium parvum

    DEFF Research Database (Denmark)

    Rasmussen, Silas Anselm; Meier, Sebastian; Andersen, Nikolaj Gedsted;

    2016-01-01

    Blooms of the microalga Prymnesium parvum cause devastating fish kills worldwide, which are suspected to be caused by the supersized ladder-frame polyether toxins prymnesin-1 and -2. These toxins have, however, only been detected from P. parvum in rare cases since they were originally described two......-HRMS) of 10 strains of P. parvum collected worldwide showed that only one strain produced the original prymnesin-1 and -2, whereas four strains produced the novel B-type prymnesin. In total 13 further prymnesin analogues differing in their core backbone and chlorination and glycosylation patterns could...

  18. The QCD gluon ladders and HERA structure function

    CERN Document Server

    Lengyel, A I

    2002-01-01

    We report on the extension of the data fitting considering the QCD inspired model based on the summation of gluon ladders applied to the $ep$ scattering. In lines of a two Pomeron approach, the structure function $F_2$ has a hard piece given by the model and the remaining soft contribution: a soft Pomeron and non-singlet content. In this contribution, we carefully estimate the relative role of the hard and the soft pieces from a global fit in a large span of $x$ and $Q^2$.

  19. Period Halving of Persistent Currents in Mesoscopic Mobius Ladders

    Institute of Scientific and Technical Information of China (English)

    邓文基; 许基桓; 刘平

    2002-01-01

    We investigate the period halving of persistent currents (PCs) of non-interacting electrons in isolated mesoscopicMobius ladders without disorder, pierced by Aharonov-Bohm flux. The mechanisms of the period halving effectdepend on the parity of the number of electrons as well as on the interchain hopping. Although the data of PCsin mesoscopic systems are sample specific, some simple rules are found in the canonical ensemble average, forexample, all the odd harmonics of the PCs disappear and the signals of even harmonics are non-negative.

  20. The phonon and thermal properties of a ladder nanostructure

    Directory of Open Access Journals (Sweden)

    M Mardaani

    2011-12-01

    Full Text Available  In this paper, we study the phonon thermal properties of a ladder nanostructure in harmonic approximation. We present a model consisting of two infinite chains with different masses. Then, we investigate the effect of different masses on the phonon spectrum. Moreover, as a specific case, in the absence of the second neighbor interaction, we calculate the phonon density of states/modes. Finally, we consider the thermal conductivity of the system. The results show that the phonon spectrum shifts down to the lower frequencies by increasing the masses. Furthermore, a frequency gap appears in the phonon spectrum. By increasing the springs constants, the thermal conductance decreases.

  1. Femoral hernia repair

    Science.gov (United States)

    Femorocele repair; Herniorrhaphy; Hernioplasty - femoral ... During surgery to repair the hernia, the bulging tissue is pushed back in. The weakened area is sewn closed or strengthened. This repair ...

  2. Undescended testicle repair

    Science.gov (United States)

    Orchidopexy; Inguinal orchidopexy; Orchiopexy; Repair of undescended testicle; Cryptorchidism repair ... first year of life without treatment. Undescended testicle repair surgery is recommended for patients whose testicles do ...

  3. Dissipation, Voltage Profile and Levy Dragon in a Special Ladder Network

    Science.gov (United States)

    Ucak, C.

    2009-01-01

    A ladder network constructed by an elementary two-terminal network consisting of a parallel resistor-inductor block in series with a parallel resistor-capacitor block sometimes is said to have a non-dispersive dissipative response. This special ladder network is created iteratively by replacing the elementary two-terminal network in place of the…

  4. Bethe-Salpeter equation with cross-ladder kernel in Minkowski and Euclidean spaces

    CERN Document Server

    Karmanov, V A; Mangin-Brinet, M

    2007-01-01

    Some results obtained by a new method for solving the Bethe-Salpeter equation are presented. The method is valid for any kernel given by irreducible Feynman graphs. The Bethe-Salpeter amplitude, both in Minkowski and in Euclidean spaces, and the binding energy for ladder + cross-ladder kernel are found. We calculate also the corresponding electromagnetic form factor.

  5. Passage and behaviour of cultured Lake Sturgeon in a prototype side-baffle fish ladder: I. Ladder hydraulics and fish ascent

    Science.gov (United States)

    Kynard, B.; Pugh, D.; Parker, T.

    2011-01-01

    Research and development of a fish ladder for sturgeons requires understanding ladder hydraulics and sturgeon behaviour in the ladder to insure the ladder is safe and provides effective passage. After years of research and development, we designed and constructed a full-scale prototype side-baffle ladder inside a spiral flume (38.3m long??1m wide??1m high) on a 6% (1:16.5) slope with a 1.92-m rise in elevation (bottom to top) to test use by sturgeons. Twenty-eight triangular side baffles, each extending part way across the flume, alternated from inside wall to outside wall down the ladder creating two major flow habitats: a continuous, sinusoidal flow down the ladder through the vertical openings of side-baffles and an eddy below each side baffle. Ascent and behaviour was observed on 22 cultured Lake Sturgeon=LS (Acipenser fulvescens) repeatedly tested in groups as juveniles (as small as 105.1cm TL, mean) or as adults (mean TL, 118cm) during four periods (fall 2002 and 2003; spring 2003 and 2007). Percent of juveniles entering the ladder that ascended to the top was greater in spring (72.7%) than in fall (40.9-45.5%) and 90.9% of 11 adults, which ascended as juveniles, ascended to the top. Six LS (27.3%) never swam to the top and seven (31.8%) swam to the top in all tests, indicating great variability among individuals for ascent drive. Some LS swam directly to the top in mean velocity, 1.2ms-1) swam at 1.8-2.2body lengthss-1 and 3.2-3.3tail beatss-1, either at or approaching prolonged swimming speed. The side-baffle ladder was stream-like and provided key factors for a sturgeon ladder: a continuous flow and no full cross-channel walls, abundant eddies for resting, an acceptable water depth, and a water velocity fish could ascend swimming 2bls-1. A side-baffle ladder passes LS and other moderate-swimming fishes. ?? 2011 Blackwell Verlag, Berlin.

  6. The career distress scale

    DEFF Research Database (Denmark)

    Creed, Peter; Hood, Michelle; Praskova, Anna

    2016-01-01

    Career distress is a common and painful outcome of many negative career experiences, such as career indecision, career compromise, and discovering career barriers. However, there are very few scales devised to assess career distress, and the two existing scales identified have psychometric...... weaknesses. The absence of a practical, validated scale to assess this construct restricts research related to career distress and limits practitioners who need to assess and treat it. Using a sample of 226 young adults (mean age 20.5 years), we employed item response theory to assess 12 existing career......, which we combined into a scale labelled the Career Distress Scale, demonstrated excellent psychometric properties, meaning that both researchers and practitioners can use it with confidence, although continued validation is required, including testing its relationship to other nomological net variables...

  7. Oscillator Based on Lumped Double Ladder Circuit with Band Edge Degeneracy

    CERN Document Server

    Oshmarin, Dmitry; Othman, Mohamed A K; Sloan, Jeff; Radfar, Mohammad; Green, Michael M; Capolino, Filippo

    2016-01-01

    An oscillator design based on a periodic, double ladder resonant circuit is proposed. The circuit exhibits a degenerate band edge (DBE) in the dispersion diagram of its phase-frequency eigenstates, and possesses unique resonance features associated with a high Q-factor resonance, compared to a single ladder or a conventional LC tank circuit. This oscillator is shown to have an oscillation threshold that is half that of a single LC ladder circuit having the same total quality factor, and thus is more robust than an LC oscillator in the presence of losses. It is also shown that the output and amplitude of the double-ladder oscillator is much less sensitive to the output loading compared to single-ladder oscillators. We show the analysis and design of such oscillators that potentially lead to enhancing the efficiency of RF components and sources.

  8. The career goals of nurses in some health care settings in Gauteng

    Directory of Open Access Journals (Sweden)

    K Jooste

    2005-09-01

    Full Text Available In nursing, purposeful career planning is essential if nurse practitioners want to make the right decisions about their work in order to strive towards and accomplish a meaningful quality of working life. Nurses should identify their career goals to be able to investigate their different career opportunities in their field of interest and direct their work according to a work strategy for years ahead. The purpose of this study was to explore and describe the career goals of post-basic nursing students with the aim of describing management strategies to guide the future career of post-basic nursing students in climbing the career ladder effectively and obtaining their set career goals. An explorative, descriptive, qualitative design was selected where the researcher worked inductively to explore and describe the needs (goals and future planned actions of the participants regarding their career management as viewed for a period of five years. The researcher purposively and conveniently identified the sample as all the postbasic nursing students, namely 250 students, who were registered for the first, second and third year of nursing management courses in that period at a South African residential university. Two structured, open questions were developed. Each participant received the questions in writing and was asked to answer them. The QSR NUD*IST program was used for the qualitative management (categorization of data. The results of the research questions related to five categories, namely becoming empowered, being promoted, being educated and professionally developed, partaking in research and taking up new projects.

  9. The career goals of nurses in some health care settings in Gauteng.

    Science.gov (United States)

    Jooste, K

    2005-08-01

    In nursing, purposeful career planning is essential if nurse practitioners want to make the right decisions about their work in order to strive towards and accomplish a meaningful quality of working life. Nurses should identify their career goals to be able to investigate their different career opportunities in their field of interest and direct their work according to a work strategy for years ahead. The purpose of this study was to explore and describe the career goals of post-basic nursing students with the aim of describing management strategies to guide the future career of post-basic nursing students in climbing the career ladder effectively and obtaining their set career goals. An explorative, descriptive, qualitative design was selected where the researcher worked inductively to explore and describe the needs (goals) and future planned actions of the participants regarding their career management as viewed for a period of five years. The researcher purposively and conveniently identified the sample as all the post-basic nursing students, namely 250 students, who were registered for the first, second and third year of nursing management courses in that period at a South African residential university. Two structured, open questions were developed. Each participant received the questions in writing and was asked to answer them. The QSR NUD*IST program was used for the qualitative management (categorization) of data. The results of the research questions related to five categories, namely becoming empowered, being promoted, being educated and professionally developed, partaking in research and taking up new projects.

  10. Fish ladders: safe fish passage or hotspot for predation?

    Directory of Open Access Journals (Sweden)

    Angelo Antonio Agostinho

    2012-10-01

    Full Text Available Fish ladders are a strategy for conserving biodiversity, as they can provide connectivity between fragmented habitats and reduce predation on shoals that accumulate immediately below dams. Although the impact of predation downstream of reservoirs has been investigated, especially in juvenile salmonids during their downstream movements, nothing is known about predation on Neotropical fish in the attraction and containment areas commonly found in translocation facilities. This study analysed predation in a fish passage system at the Lajeado Dam on the Tocantins River in Brazil. The abundance, distribution, and the permanence (time spent of large predatory fish along the ladder, the injuries imposed by piranhas during passage and the presence of other vertebrate predators were investigated. From December 2002 to October 2003, sampling was conducted in four regions (downstream, along the ladder, in the forebay, and upstream of the reservoir using gillnets, cast nets and counts or visual observations. The captured fish were tagged with thread and beads, and any mutilations were registered. Fish, birds and dolphins were the main predator groups observed, with a predominance of the first two groups. The entrance to the ladder, in the downstream region, was the area with the highest number of large predators and was the only region with relevant non-fish vertebrates. The main predatory fish species were Rhaphiodon vulpinus, Hydrolycus armatus, and Serrasalmus rhombeus. Tagged individuals were detected predating along the ladder for up to 90 days. Mutilations caused by Serrasalmus attacks were noted in 36% of species and 4% of individuals at the top of the ladder. Our results suggested that the high density of fish in the restricted ladder environment, which is associated with injuries suffered along the ladder course and the presence of multiple predator groups with different predation strategies, transformed the fish corridor into a hotspot for

  11. SUSY’s Ladder: reframing sequestering at Large Volume

    Energy Technology Data Exchange (ETDEWEB)

    Reece, Matthew [Department of Physics, Harvard University,Cambridge, MA 02138 (United States); Xue, Wei [Center for Theoretical Physics, Massachusetts Institute of Technology,Cambridge, MA 02139 (United States)

    2016-04-07

    Theories with approximate no-scale structure, such as the Large Volume Scenario, have a distinctive hierarchy of multiple mass scales in between TeV gaugino masses and the Planck scale, which we call SUSY’s Ladder. This is a particular realization of Split Supersymmetry in which the same small parameter suppresses gaugino masses relative to scalar soft masses, scalar soft masses relative to the gravitino mass, and the UV cutoff or string scale relative to the Planck scale. This scenario has many phenomenologically interesting properties, and can avoid dangers including the gravitino problem, flavor problems, and the moduli-induced LSP problem that plague other supersymmetric theories. We study SUSY’s Ladder using a superspace formalism that makes the mysterious cancelations in previous computations manifest. This opens the possibility of a consistent effective field theory understanding of the phenomenology of these scenarios, based on power-counting in the small ratio of string to Planck scales. We also show that four-dimensional theories with approximate no-scale structure enforced by a single volume modulus arise only from two special higher-dimensional theories: five-dimensional supergravity and ten-dimensional type IIB supergravity. This gives a phenomenological argument in favor of ten dimensional ultraviolet physics which is different from standard arguments based on the consistency of superstring theory.

  12. Intestinal obstruction repair

    Science.gov (United States)

    Repair of volvulus; Intestinal volvulus - repair; Bowel obstruction - repair ... Intestinal obstruction repair is done while you are under general anesthesia . This means you are asleep and DO NOT feel pain. ...

  13. Aortic aneurysm repair - endovascular

    Science.gov (United States)

    EVAR; Endovascular aneurysm repair - aorta; AAA repair - endovascular; Repair - aortic aneurysm - endovascular ... Endovascular aortic repair is done because your aneurysm is very large, growing quickly, or is leaking or bleeding. You may have ...

  14. Applications of Motivational Interviewing in Career Counseling: Facilitating Career Transition

    Science.gov (United States)

    Stoltz, Kevin B.; Young, Tabitha L.

    2013-01-01

    The Protean and Boundaryless career paradigms are calling for new ways to provide career counseling to clients. Career counselors need methods for facilitating client's career transition across all stages of career development. This facilitation requires career counselors to be armed with methods for promoting client's autonomy,…

  15. The Relationship between Disability Status, Career Beliefs, and Career Indecision.

    Science.gov (United States)

    Enright, Mary Schaefer

    1996-01-01

    Tests two hypotheses: (1) career beliefs are related to career indecision, and (2) disability status influences the relationship between career beliefs and career indecision. Results yielded significant correlations between self-doubting career beliefs and career indecision, suggesting that disability may limit an individual's opportunity to…

  16. Motorcycle Repair.

    Science.gov (United States)

    Hein, Jim; Bundy, Mike

    This motorcycle repair curriculum guide contains the following ten areas of study: brake systems, clutches, constant mesh transmissions, final drives, suspension, mechanical starting mechanisms, electrical systems, fuel systems, lubrication systems, and overhead camshafts. Each area consists of one or more units of instruction. Each instructional…

  17. Turbine repair process, repaired coating, and repaired turbine component

    Energy Technology Data Exchange (ETDEWEB)

    Das, Rupak; Delvaux, John McConnell; Garcia-Crespo, Andres Jose

    2015-11-03

    A turbine repair process, a repaired coating, and a repaired turbine component are disclosed. The turbine repair process includes providing a turbine component having a higher-pressure region and a lower-pressure region, introducing particles into the higher-pressure region, and at least partially repairing an opening between the higher-pressure region and the lower-pressure region with at least one of the particles to form a repaired turbine component. The repaired coating includes a silicon material, a ceramic matrix composite material, and a repaired region having the silicon material deposited on and surrounded by the ceramic matrix composite material. The repaired turbine component a ceramic matrix composite layer and a repaired region having silicon material deposited on and surrounded by the ceramic matrix composite material.

  18. CareerConnector

    Data.gov (United States)

    US Agency for International Development — CareerConnector is USAID's premiere recruiting tool. It is powered by Monster and integrated with www.usajobs.gov. CareerConnector tracks the progression of a...

  19. Goodbye Career, Hello Success.

    Science.gov (United States)

    Komisar, Randy

    2000-01-01

    Success in today's economy means throwing out the old career rules. The "noncareer" career is driven by passion for the work and has the fluidity and flexibility needed in the contemporary workplace. (JOW)

  20. Goodbye Career, Hello Success.

    Science.gov (United States)

    Komisar, Randy

    2000-01-01

    Success in today's economy means throwing out the old career rules. The "noncareer" career is driven by passion for the work and has the fluidity and flexibility needed in the contemporary workplace. (JOW)

  1. Improving Career Exploration. Implementation Manual.

    Science.gov (United States)

    Southwest Iowa Learning Resources Center, Red Oak.

    This junior high/middle school career exploration implementation manual is designed to assist in implementing a comprehensive career exploration program using four career exploration components developed in the Improving Career Exploration project. The first of six sections addresses career exploration and career/vocational development. Basic…

  2. General surgery career resource.

    Science.gov (United States)

    Parsee, Ana M; Ross, Sharona B; Gantt, Nancy L; Kichler, Kandace; Hollands, Celeste

    2013-11-01

    General surgery residency training can lead to a rewarding career in general surgery and serve as the foundation for careers in several surgical subspecialties. It offers broad-based training with exposure to the cognitive and technical aspects of several surgical specialties and prepares graduating residents for a wide range of career paths. This career development resource discusses the training aspects of general surgery. Copyright © 2013 Elsevier Inc. All rights reserved.

  3. Exact Potts model partition functions on ladder graphs

    Science.gov (United States)

    Shrock, Robert

    2000-08-01

    We present exact calculations of the partition function Z of the q-state Potts model and its generalization to real q, for arbitrary temperature on n-vertex ladder graphs, i.e., strips of the square lattice with width Ly=2 and arbitrary length Lx, with free, cyclic, and Möbius longitudinal boundary conditions. These partition functions are equivalent to Tutte/Whitney polynomials for these graphs. The free energy is calculated exactly for the infinite-length limit of these ladder graphs and the thermodynamics is discussed. By comparison with strip graphs of other widths, we analyze how the singularities at the zero-temperature critical point of the ferromagnet on infinite-length, finite-width strips depend on the width. We point out and study the following noncommutativity at certain special values q s: lim n→∞ limq→q s Z 1/n≠ limq→q s limn→∞ Z 1/n. It is shown that the Potts antiferromagnet on both the infinite-length line and ladder graphs with cyclic or Möbius boundary conditions exhibits a phase transition at finite temperature if 0< q<2, but with unphysical properties, including negative specific heat and non-existence, in the low-temperature phase, of an n→∞ limit for thermodynamic functions that is independent of boundary conditions. Considering the full generalization to arbitrary complex q and temperature, we determine the singular locus B in the corresponding C2 space, arising as the accumulation set of partition function zeros as n→∞. In particular, we study the connection with the T=0 limit of the Potts antiferromagnet where B reduces to the accumulation set of chromatic zeros. Certain properties of the complex-temperature phase diagrams are shown to exhibit close connections with those of the model on the square lattice, showing that exact solutions on infinite-length strips provide a way of gaining insight into these complex-temperature phase diagrams.

  4. The Dual Career Family.

    Science.gov (United States)

    Gurtin, Lee

    1980-01-01

    The dual career couple is forced to make a series of choices and compromises that impact the realms of marriage and career. The dilemmas that confront dual career marriages can be overcome only by compromise, accommodation, and mutual understanding on the part of the individuals involved. A revamping of human resources and recruitment programs is…

  5. Sustainable careers: Introductory chapter

    NARCIS (Netherlands)

    Heijden, B.I.J.M. van der; Vos, A de

    2015-01-01

    In this introductory chapter we will introduce the concept of ‘sustainable careers’ within the broader framework of contemporary careers. Departing from changes in the career context with regard to the dimensions of time, social space, agency and meaning, we advocate a fresh perspective on careers t

  6. F-ladder Knowledge and F-ladder Mining-discovery%F-阶梯知识与F-阶梯挖掘-发现

    Institute of Scientific and Technical Information of China (English)

    郝秀梅; 李淑敏; 史开泉

    2012-01-01

    利用单向S-粗集(one direction singular rough sets)与它的动态特性,给出F-阶梯知识、F-阶梯度的概念.利用这些概念,提出F-阶梯知识分辩定理、最小F-阶梯知识挖掘-发现定理、最大F-阶梯知识挖掘-发现定理、知识发现依赖-筛选定理与F-阶梯知识内潜藏原理,给出F-阶梯知识挖掘-发现准则及应用.这些结果是单向S-粗集的新特性与单向S-粗集的动态特性的新应用.%By employing one direction S-rough sets (one direction singular rough sets) and its dynamic characteristic, this paper presented the concepts of F-ladder knowledge and F-ladder degree. Using theses concepts, the discernibility theorem of F-ladder knowledge, the mining-discovery theorem of minimum F-ladder knowledge, the mining-discovery theorem of maximum F-ladder knowledge and the dependence-filter theorem of knowledge discovery ere proposed,and the interior hiding principle of F-ladder knowledge, the mining-discovery criterion of F-ladder knowledge and its applications were given. The results given in this paper show the new characteristics of one direction S-rough sets and the new applications of the dynamic characteristic of one direction S-rough sets.

  7. Formation of a series of chimney-ladder compounds in the Ru-Re-Si system

    Energy Technology Data Exchange (ETDEWEB)

    Simkin, B.A. [Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501 (Japan); Ishida, A. [Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501 (Japan); Okamoto, N.L. [Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501 (Japan); Kishida, K. [Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501 (Japan)]. E-mail: k.kishida@materials.mbox.media.kyoto-u.ac.jp; Tanaka, K. [Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501 (Japan); Inui, H. [Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501 (Japan)

    2006-06-15

    Rhenium-alloyed ruthenium sesquisilicide alloys have been prepared over the wide composition range Ru{sub 1-{delta}}Re {sub {delta}}Si{sub 1.5}, 0 {<=} {delta} {<=} 0.85. The phase relationships of these alloys have been investigated using X-ray powder diffraction, scanning electron microscopy and transmission electron microscopy. Alloys with {delta} {>=} 0.03 are multi-phase, composed of a series of (Ru,Re)Si {sub y} chimney-ladder phases with compositions of Ru{sub 1-x}Re {sub x}Si{sub 1.5386+0.1783x} (0.14 {<=} x {<=} 0.76) and B20-type monosilicide (Ru,Re)Si as a secondary phase. These chimney-ladder structures are considered to form to stabilize the high-temperature Ru{sub 2}Si{sub 3} chimney-ladder phase through the substitution of Ru with Re. The solubility limit of Re in a series of chimney-ladder phases is as large as 76% Re (x = 0.76) and the Si/(Ru + Re) ratio of the chimney-ladder phases increases with increasing Re content. The observed deviation of the chimney-ladder structure from the idealized composition and the possibility of adjusting the semiconducting properties of these chimney-ladder structures are discussed in terms of the valence electron concentration per metal atom.

  8. Bound state structure and electromagnetic form factor beyond the ladder approximation

    CERN Document Server

    Gigante, V; Ydrefors, E; Gutierrez, C; Karmanov, V A; Frederico, T

    2016-01-01

    We investigate the response of the bound state structure of a two-boson system, within a Yukawa model with a scalar boson exchange, to the inclusion of the cross-ladder contribution to the ladder kernel of the Bethe-Salpeter equation. The equation is solved by means of the Nakanishi integral representation and light-front projection. The valence light-front wave function and the elastic electromagnetic form factor beyond the impulse approximation, with the inclusion of the two-body current, generated by the cross-ladder kernel, are computed. The valence wave function and electromagnetic form factor, considering both ladder and ladder plus cross-ladder kernels, are studied in detail. Their asymptotic forms are found to be quite independent of the inclusion of the cross-ladder kernel, for a given binding energy. The asymptotic decrease of form factor agrees with the counting rules. This analysis can be generalized to fermionic systems, with a wide application in the study of the meson structure.

  9. Measuring a Country's Product Ladder and Technology Level based on Trade Flow

    Directory of Open Access Journals (Sweden)

    Jong-il Kim

    2006-06-01

    Full Text Available This study tries to quantify the technology level of products based on the concept of product ladder. While many studies on country technology competitiveness use the aggregate indices such as total factor productivity and revealed comparative advantage, this study estimates the ranking of about 2000 products in product ladder by using SITC 5 digit level export data. Based on the product ladder, this study measures the country and industry ranking and explores the characteristics of the ranking. It provides the international comparison of inter-industry and intra-industry ranking differences in product ladder. The statistical relationships between the ranking in product ladder and the determinants of technology level such as R&D and physical capital investment and wage, confirms that the measured ranking in product ladder could be regarded as an indirect indicator of technology level. The product ladder is applied to the estimation of production function to see the effect of the product differentiation on labor productivity.

  10. Career Awareness, Career Planning, and Career Transition Needs among Sports Coaches

    Science.gov (United States)

    Lavallee, David

    2006-01-01

    This study is conducted with 56 recently retired full-time sports coaches to examine the importance of career awareness, postsport career planning, and career transition needs. Results indicate that the individuals do not have a high level of career awareness, have done relatively little postsport career planning during their coaching careers, and…

  11. Phase sensitive quantum interference on forbidden transition in ladder scheme

    CERN Document Server

    Koganov, Gennady A

    2014-01-01

    A three level ladder system is analyzed and the coherence of initially electric-dipole forbidden transition is calculated. Due to the presence of two laser fields the initially dipole forbidden transition becomes dynamically permitted due to ac Stark effect. It is shown that such transitions exhibit quantum-interference-related phenomena, such as electromagnetically induced transparency, gain without inversion and enhanced refractive index. Gain and dispersion characteristics of such transitions strongly depend upon the relative phase between the driving and the probe fields. Unlike allowed transitions, gain/absorption behavior of ac-Stark allowed transitions exhibit antisymmetric feature on the Rabi sidebands. It is found that absorption/gain spectra possess extremely narrow sub-natural resonances on these ac Stark allowed forbidden transitions. An interesting finding is simultaneous existence of gain and negative dispersion at Autler-Townes transition which may lead to both reduction of the group velocity a...

  12. Stark ladder in a one-dimensional quasiperiodic system

    Science.gov (United States)

    Niizeki, K.; Matsumura, A.

    1993-08-01

    We have investigated the effect of a uniform field F on the energy spectrum of the Harper model, which includes an irrational ω and the phase variable cphi as parameters. The energy levels Ei(cphi), iEopenZ, are periodic on cphi, Ei(cphi+1)=Ei(cphi), and form a two-dimensional (2D) pattern in the cphi-E plane. The pattern which we term a 2D Wannier-Stark ladder (2DWSL) has 2D periodicity because of the equalities Ei(cphi)=iF+E0(cphi+iω), i∈openZ . The energy spectrum is a vertical section of the 2DWSL through the specified cphi and represents a quasiperiodic WSL.

  13. Design of Dual Bandpass and Bandreject LC Ladder Filters

    Directory of Open Access Journals (Sweden)

    J. Hospodka

    2006-09-01

    Full Text Available This paper deals with the design of two-passband bandpass and two-stopband bandreject LC ladder filters. The design method is based on the special dual frequency transformation that transforms normalized lowpass to either bandpass with two passbands or to bandreject with two stopbands that are specified by four cutoff frequencies. The paper shows analytical solution relating these four cutoff frequencies to parameters of dual frequency transformation. It enables a direct computation of dual band LC filter elements from a normalized lowpass filter by means of simple relations. These relations have been implemented in the mathematical program Maple (TM as new user functions. They are supposed to be used as an enhancement of Syntfil package which is intended for analog filter design in program Maple. Specific application is shown on an example of the two-passband bandpass LC filter design.

  14. Polaron and bipolaron of uniaxially strained one dimensional zigzag ladder

    Energy Technology Data Exchange (ETDEWEB)

    Yavidov, B.Ya., E-mail: bakhrom.yavidov@gmail.com

    2016-09-15

    An influence of the uniaxial strains in one dimensional zigzag ladder (1DZL) on the properties of polarons and bipolarons is considered. It is shown that strain changes all the parameters of the system, in particular, spectrum, existing bands and the masses of charge carriers. Numerical results obtained by taking into an account the Poisson effect clearly indicate that the properties of the (bi)polaronic system can be tuned via strain. Mass of bipolaron can be manipulated by the strain too which in turn leads to the way of tuning Bose–Einstein condensation temperature T{sub BEC} of bipolarons. It is shown that T{sub BEC} of bipolarons in strained 1DZL reasonably correlates with the values of critical temperature of superconductivity of certain perovskites.

  15. SOLUTION PROPERTIES OF LADDER-LIKE POLYMER POLYPHENYLSILSESQUIOXANES

    Institute of Scientific and Technical Information of China (English)

    SHI Lianghe; ZHANG Xinsheng; SI Yuandong; YE Meiling; LI Dingcai

    1987-01-01

    Solution properties of ladder-like polymer polyphenylsilsesquioxane (PPS) were studied by measurement of intrinsic viscosity, small angle laser light scattering and gel permeation chromatography. It was found that PPS can be modeled with a wormlike continuous cylinder rather than a wormlike coil. A plot of (M2/[η])1/3 vs. M1/2 was employed in obtaining the persistence length (2λ)-1 and effective hydrodynamic diameter. When MW≤5 × 105, Mark-Houwink equation is adequate in describing the relationship between MW and [η] with α about unity. This implies that PPS chain is semi-stiff. For GPC experiments, it was shown that universal calibration can be applied in PPS. When molecular weights of PPS are sufficiently high, their molecular weight distributions are often very broad.

  16. Quantum Walks of SU(2)_k Anyons on a Ladder

    CERN Document Server

    Lehman, L; Brennen, G K

    2012-01-01

    We study the effects of braiding interactions on single anyon dynamics using a quantum walk model on a quasi-1-dimensional ladder filled with stationary anyons. The model includes loss of information of the coin and nonlocal fusion degrees of freedom on every second time step, such that the entanglement between the position states and the exponentially growing auxiliary degrees of freedom is lost. The computational complexity of numerical calculations reduces drastically from the fully coherent anyonic quantum walk model, allowing for relatively long simulations for anyons which are spin-1/2 irreps of SU(2)_k Chern-Simons theory. We find that for Abelian anyons, the walk retains the ballistic spreading velocity just like particles with trivial braiding statistics. For non-Abelian anyons, the numerical results indicate that the spreading velocity is linearly dependent on the number of time steps. By approximating the Kraus generators of the time evolution map by circulant matrices, it is shown that the spatial...

  17. Hood River and Pelton Ladder Evaluation Studies : Annual Report 1994.

    Energy Technology Data Exchange (ETDEWEB)

    Olsen, Erik A.; French, Rod A.; Ritchey, Alan D.

    1995-09-01

    In 1992, the Northwest Power Planning Council approved the Hood River and Pelton ladder master plans within the framework of the Columbia River Basin Fish and Wildlife Program. The master plans define an approach for implementing a hatchery supplementation program in the Hood River subbasin. The hatchery program as defined in the master plans is called the Hood River Hatchery Production Program (HRPP). The HRPP will be phased in over several years and will be jointly implemented by the Oregon Department of Fish and Wildlife (ODFW) and the Confederated Tribes of the Warm Springs (CTWS) Reservation. In December 1991, a monitoring and evaluation program was implemented in the Hood River subbasin to collect life history and production information on stocks of anadromous salmonids returning to the Hood River subbasin. The program was implemented to provide the baseline information needed to: (1) evaluate various management options for implementing the HRPP and (2) determine any post-project impacts the HRPP has on indigenous populations of resident fish. Information collected during the 1992-94 fiscal years will also be used to prepare an environmental impact statement (EIS) evaluating the program`s impact on the human environment. To begin construction on project facilities, it was proposed that the HRPP be implemented in two phases. Phase I would include work that would fall under a {open_quotes}categorical exclusion{close_quotes} from NEPA, and Phase II would include work requiring an EIS prior to implementation. This report summarizes the life history and escapement data collected in the Hood River subbasin and the status work of implemented under Phase I of the HR Life history and escapement data will be used to: (1) test the assumptions on which harvest and escapement goals for the Hood River and Pelton ladder master plans are based and (2) develop biologically based management recommendations for implementing the HRPP.

  18. A General Study on Equivalent Resistance of Three-Terminal Ladder Network

    Institute of Scientific and Technical Information of China (English)

    Wu Guoxiang; Tan Zhizhong; Song Guohua; Song Changqing

    2005-01-01

    In view of the application importance of resistance network in modern science and technology, the author presented the basic structure of a three-terminal ladder shaped resistance network and studied the equivalent resistance of the network. By means of virtual current method, the network was analyzed and a model of two elements three orders differential equation was constructed. Based on different marginal conditions, two general adaptive rules for the inlet resistance of the three-terminal ladder shaped network, as well as two ultimate rules for the equivalent resistance of three-terminal infinite ladder shaped network were given.

  19. Thermodynamics of the spin Luttinger liquid in a model ladder material.

    Science.gov (United States)

    Rüegg, Ch; Kiefer, K; Thielemann, B; McMorrow, D F; Zapf, V; Normand, B; Zvonarev, M B; Bouillot, P; Kollath, C; Giamarchi, T; Capponi, S; Poilblanc, D; Biner, D; Krämer, K W

    2008-12-12

    The phase diagram in temperature and magnetic field of the metal-organic, two-leg, spin-ladder compound (C5H12N)2CuBr4 is studied by measurements of the specific heat and the magnetocaloric effect. We demonstrate the presence of an extended spin Luttinger-liquid phase between two field-induced quantum critical points and over a broad range of temperature. Based on an ideal spin-ladder Hamiltonian, comprehensive numerical modeling of the ladder specific heat yields excellent quantitative agreement with the experimental data across the entire phase diagram.

  20. Snakes and ladders: state interventions and the place of liberty in public health policy.

    Science.gov (United States)

    Dawson, Angus J

    2016-08-01

    In this paper I outline and explore some problems in the way that the Nuffield Council of Bioethics' report Public Health: Ethical Issues (2007) presents its 'Intervention Ladder'. They see the metaphor of a ladder both as capturing key normative priorities and as making a real and important contribution to ethical policymaking in public health. In this paper I argue that the intervention ladder is not a useful model for thinking about policy decisions, that it is likely to produce poor decisions and that it is incompatible with the report's stated approach to relevant public health policy values.

  1. Nested Bethe Ansatz for Spin Ladder Model with Open Boundary Conditions

    Institute of Scientific and Technical Information of China (English)

    WU Jun-Fang; ZHANG Chun-Min; YUE Rui-Hong; LI Run-Ling

    2005-01-01

    The nested Bethe ansatz (BA) method is applied to find the eigenvalues and the eigenvectors of the transfer matrix for spin-ladder model with open boundary conditions. Based on the reflection equation, we find the general diagonal solution, which determines the generalboundary interaction in the Hamiltonian. We introduce the spin-ladder model with open boundary conditions. By finding the solution K± of the reflection equation which determines the nontrivial boundary terms in the Hamiltonian, we diagonalize the transfer matrix of the spin-ladder model with open boundary conditions in the framework of nested BA.

  2. Preparation and Characterization of Ordered Ladder Like Polyphenylsilsesquioxane via Two-step Sol-gel Method

    Institute of Scientific and Technical Information of China (English)

    FENG Yu-zhong; QI Sheng-li; LIU Jing-jing; WU Zhan-peng; YANG Xiao-ping; JIN Ri-guang; WU De-zhen

    2011-01-01

    Soluble and ordered ladder like polyphenylsilsesquioxane was synthesized by a two-step sol-gel method including hydrolysis and polycondensation. The procedure was monitored by Fourier transform infrared spectroscopy and the presence of the ladder like structure was confirmed by X-ray techniques. 29Si NMR analysis shows a very narrow half peak width(δ<4) at δ-78.866 of the main chain unit C6H5SiO3/2 of polyphenylsilsesquioxane, indicating that the polyphenylsilsesquioxane has ordered ladder like structures rather than the branched ones. The relationship between molecular weight and the time of polycondensation was also discussed.

  3. Entanglement and Fidelity of a Spin Ladder with Dzyaloshinsky-Moriya Interaction

    Institute of Scientific and Technical Information of China (English)

    陈雅; 朱士群

    2011-01-01

    The spin ladder with Dzyaloshinsky-Moriya interaction is investigated by using the quantum renormalization-group method. The entanglement and fidelity are periodic functions of the time and oscillate between zero and one. The oscillation period decreases with either the interaction in the spin ladder or the Dzyaloshinsky-Moriya interaction increasing. When the system relates to the environment, both entanglement and fidelity oscillate with a damping rate related to intrinsic decoherence rate, the interaction in the spin ladder, and the Dzyaloshinsky-Moriya interaction.

  4. Relation of Depression and Dysfunctional Career Thinking to Career Indecision.

    Science.gov (United States)

    Saunders, Denise E.; Peterson, Gary W.; Reardon, Robert C.; Sampson, James P., Jr.

    2000-01-01

    A study of 215 students who completed career indecision, career thoughts, and depression measures showed that dysfunctional career thoughts were significant components of career indecision. Depression was significantly associated with career indecision, but it did not capture a significant independent variation in regression analyses. (SK)

  5. Generalized ladder operators for the Dirac-Coulomb problem via SUSY QM

    Energy Technology Data Exchange (ETDEWEB)

    Rodrigues, R. de Lima [Centro Brasileiro de Pesquisas Fisicas (CBPF), Rio de Janeiro, RJ (Brazil); Universidade Federal de Campina Grande, PB (Brazil). Centro de Formacao de Professores. Dept. de Ciencias Exatas e da Natureza; E-mail: rafaelr@cbpf.br

    2003-12-15

    The supersymmetry in quantum mechanics and shape invariance condition are applied as an algebraic method to solving the Dirac-Coulomb problem. The ground state and the excited states are investigated via new generalized ladder operators. (author)

  6. Variable Pole Pitch Electromagnetic Propulsion with Ladder-Slot-Secondary Double-Sided Linear Induction Motors

    National Research Council Canada - National Science Library

    Jun Di; Yu Fan; Yajing Liu; Sijia Liu; Yulong Zhu

    2017-01-01

    In this paper, we propose a novel variable pole pitch (VPP) electromagnetic (EM) propulsion technique using a series of ladder-slot-secondary double-sided linear induction motors (LS-secondary DLIMs...

  7. CONCERTED H-BONDING TEMPLATE SYNTHESIS OF AN ORDERED LADDER POLYSILSESQUIOXANE

    Institute of Scientific and Technical Information of China (English)

    Kui-lin Deng; Tao-yi Zhang; Xiao-jing Zhang; Ai-qin Zhang; Ping Xie; Rong-ben Zhang

    2006-01-01

    A novel soluble regular ladder poly(benzoyl-3-aminopropyl) silsesquioxane (LPBAS) was facilely prepared under effective assistance of concerted H-bonding self-assembly of amido groups of side chains and silanol groups, respectively, of a new template monomer [1,3-bis(benzoyl-3-aminopropyl)-1,1,3,3-tetraethoxydisiloxane] (M). The ordered ladder structure of LPBAS is manifested in: (1) the presence of two Bragg peaks representing the ladder width (d) and ladder thickness (t) in X-ray diffraction (XRD) pattern; (2) narrow base-line width (w = 6) of resonance absorption for -CH2SiO3/2 moiety in 29Si-NMR and (3) high glass transition temperature Tg = 112℃ in differential scanning calorimetry (DSC) analysis.

  8. Pulse-Width Control in Ladder Structure Four-Phase Rectifier for AC-Electromotive

    Science.gov (United States)

    Ivanov, V. V.; Myatez, S. V.; Langeman, E. G.; Schurov, N. I.

    2016-04-01

    Based on these studies the ways of power factor of the single-phase rectifiers operating in a single-phase AC network improving are suggested. The ladder four-phase rectifier is offered as a technical mean using a pulse-width method of controlling the rectified voltage. The pulse-width control efficiency as a way of the power factor rectifier with a ladder structure for AC electromotive improving is evaluated.

  9. The Short Call Ladder strategy and its application in trading and hedging

    Directory of Open Access Journals (Sweden)

    Marcel Rešovský

    2010-03-01

    Full Text Available The paper presents a new approach to the formation of Short Call Ladder (SCL strategy based on the functions of profit. Anoptimal algorithm for the use of this strategy in trading is introduced as well. Furthermore, this paper is focused on the applicationof Short Call Ladder strategy in hedging against a price rise of the underlying asset. In the end, the results are compared with theresults of hedging obtained by Short Combo and Vertical Ratio Call Back Spread option strategy.

  10. Photonic Bloch oscillations and Wannier-Stark ladders in exponentially chirped Bragg gratings.

    Science.gov (United States)

    Wilkinson, P B

    2002-05-01

    The formation of photonic Bloch oscillations and Wannier-Stark ladders is demonstrated in an exponentially chirped one-dimensional Bragg grating. The photonic Bloch oscillations are investigated using Hamiltonian optics, and direct analogies are made with electron dynamics in periodic potentials. The results of transfer matrix calculations are presented, which show the existence of a photonic Wannier-Stark ladder that should be detectable in experiments.

  11. Bethe-Salpeter equation in Minkowski space with cross-ladder kernel

    CERN Document Server

    Karmanov, V A

    2006-01-01

    A new method for solving the Bethe-Salpeter equation is developed. It allows to find the Bethe-Salpeter amplitudes both in Minkowski and in Euclidean spaces and, as a by product, the light-front wave function. The method is valid for any kernel given by irreducible Feynman graphs. Bethe-Salpeter and Light-Front equations for scalar particles with ladder + cross-ladder kernel are solved.

  12. The Plastic Surgery Compass: Navigating the Reconstructive Ladder in the Personalized Health Care Era.

    Science.gov (United States)

    Sandberg, Lars Johan M

    2016-09-01

    The reconstructive ladder and the reconstructive elevator have withstood the test of time as didactic tools for resident education. Over time, many alternative models have been suggested to incorporate the technological advances in plastic surgery, but none of them have focused on the patient. Changes in practice and the trend toward personalized health care demand a 360-degree evaluation and solution of surgical problems incorporating patient-specific characteristics. We, therefore, suggest the concept of the plastic surgery compass to navigate the ladder.

  13. Fundamentos Basicos de Career Education. Monografia en Career Education. [Basic Fundamentals of Career Education. Monograph in Career Education].

    Science.gov (United States)

    Office of Education (DHEW), Washington, DC.

    This document is the Spanish translation of ED 145 222, A Primer for Career Education. In this monograph, a view of the basic nature of the career education effort is discussed under the following topics: the basis of need for career education; the meaning and goals of career education; the difference between career education and vocational…

  14. Telling Stories of Career Assessment

    Science.gov (United States)

    McMahon, Mary; Watson, Mark

    2012-01-01

    In the field of career development, there is an acknowledged relationship between career assessment and career counseling. Traditional career assessment and more recent narrative approaches to career counseling are perceived as having an uneasy relationship because of their different philosophical bases. A sustainable future story for the field…

  15. Resonant Tunneling States of a Pairing Ladder with Random Dimer Chains

    Institute of Scientific and Technical Information of China (English)

    HU Dong-Sheng; ZHANG Yan-Ling; YIN Xiao-Gang; ZHU Chen-Ping; ZHANG Yong-Mei

    2012-01-01

    We propose three models of pairing ladders, in which two types of atoms, A and B, exist, and the corresponding atoms in different chains are pairng, I.e. if atom A is in a site of one chain, the atom in the corresponding site of another chain should be atom B. It is found that there are three resonant states in the ladder when the two types of atoms are both random dimers (RD) in the same chain. No extended state exists in the ladder when only one type of atom is RD distributed or two types of atoms both are random distributed in the same chain.%We propose three models of pairing ladders,in which two types of atoms,A and B,exist,and the corresponding atoms in different chains are pairng,i.e.if atom A is in a site of one chain,the atom in the corresponding site of another chain should be atom B.It is found that there are three resonant states in the ladder when the two types of atoms are both random dimers (RD) in the same chain.No extended state exists in the ladder when only one type of atom is RD distributed or two types of atoms both are random distributed in the same chain.

  16. Eye muscle repair - discharge

    Science.gov (United States)

    ... Lazy eye repair - discharge; Strabismus repair - discharge; Extraocular muscle surgery - discharge ... You or your child had eye muscle repair surgery to correct eye muscle ... term for crossed eyes is strabismus. Children most often ...

  17. Ventral hernia repair

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/article/007661.htm Ventral hernia repair To use the sharing features on this page, please enable JavaScript. Ventral hernia repair is surgery to repair a ventral hernia. ...

  18. Brain aneurysm repair

    Science.gov (United States)

    ... aneurysm repair; Dissecting aneurysm repair; Endovascular aneurysm repair - brain; Subarachnoid hemorrhage - aneurysm ... Your scalp, skull, and the coverings of the brain are opened. A metal clip is placed at ...

  19. Ladder Operators for Lamé Spheroconal Harmonic Polynomials

    Directory of Open Access Journals (Sweden)

    Ricardo Méndez-Fragoso

    2012-10-01

    Full Text Available Three sets of ladder operators in spheroconal coordinates and their respective actions on Lamé spheroconal harmonic polynomials are presented in this article. The polynomials are common eigenfunctions of the square of the angular momentum operator and of the asymmetry distribution Hamiltonian for the rotations of asymmetric molecules, in the body-fixed frame with principal axes. The first set of operators for Lamé polynomials of a given species and a fixed value of the square of the angular momentum raise and lower and lower and raise in complementary ways the quantum numbers $n_1$ and $n_2$ counting the respective nodal elliptical cones. The second set of operators consisting of the cartesian components $hat L_x$, $hat L_y$, $hat L_z$ of the angular momentum connect pairs of the four species of polynomials of a chosen kind and angular momentum. The third set of operators, the cartesian components $hat p_x$, $hat p_y$, $hat p_z$ of the linear momentum, connect pairs of the polynomials differing in one unit in their angular momentum and in their parities. Relationships among spheroconal harmonics at the levels of the three sets of operators are illustrated.

  20. Dynamics of blood flow in a microfluidic ladder network

    Science.gov (United States)

    Maddala, Jeevan; Zilberman-Rudenko, Jevgenia; McCarty, Owen

    The dynamics of a complex mixture of cells and proteins, such as blood, in perturbed shear flow remains ill-defined. Microfluidics is a promising technology for improving the understanding of blood flow under complex conditions of shear; as found in stent implants and in tortuous blood vessels. We model the fluid dynamics of blood flow in a microfluidic ladder network with dimensions mimicking venules. Interaction of blood cells was modeled using multiagent framework, where cells of different diameters were treated as spheres. This model served as the basis for predicting transition regions, collision pathways, re-circulation zones and residence times of cells dependent on their diameters and device architecture. Based on these insights from the model, we were able to predict the clot formation configurations at various locations in the device. These predictions were supported by the experiments using whole blood. To facilitate platelet aggregation, the devices were coated with fibrillar collagen and tissue factor. Blood was perfused through the microfluidic device for 9 min at a physiologically relevant venous shear rate of 600 s-1. Using fluorescent microscopy, we observed flow transitions near the channel intersections and at the areas of blood flow obstruction, which promoted larger thrombus formation. This study of integrating model predictions with experimental design, aids in defining the dynamics of blood flow in microvasculature and in development of novel biomedical devices.

  1. Kinetic simulations of ladder climbing by electron plasma waves

    Science.gov (United States)

    Hara, Kentaro; Barth, Ido; Kaminski, Erez; Dodin, I. Y.; Fisch, N. J.

    2017-05-01

    The energy of plasma waves can be moved up and down the spectrum using chirped modulations of plasma parameters, which can be driven by external fields. Depending on whether the wave spectrum is discrete (bounded plasma) or continuous (boundless plasma), this phenomenon is called ladder climbing (LC) or autoresonant acceleration of plasmons. It was first proposed by Barth et al. [Phys. Rev. Lett. 115, 075001 (2015), 10.1103/PhysRevLett.115.075001] based on a linear fluid model. In this paper, LC of electron plasma waves is investigated using fully nonlinear Vlasov-Poisson simulations of collisionless bounded plasma. It is shown that, in agreement with the basic theory, plasmons survive substantial transformations of the spectrum and are destroyed only when their wave numbers become large enough to trigger Landau damping. Since nonlinear effects decrease the damping rate, LC is even more efficient when practiced on structures like quasiperiodic Bernstein-Greene-Kruskal (BGK) waves rather than on Langmuir waves per se.

  2. Apollo 11 Astronaut Neil Armstrong Performs Ladder Practice

    Science.gov (United States)

    1969-01-01

    In preparation of the nation's first Lunar landing mission, Apollo 11 crew members underwent training activities to practice activities they would be performing during the mission. In this photograph, Neil Armstrong, donned in his space suit, practices getting back to the first rung of the ladder on the Lunar Module (LM). The Apollo 11 mission launched from the Kennedy Space Center (KSC) in Florida via the Marshall Space Flight Center (MSFC) developed Saturn V launch vehicle on July 16, 1969 and safely returned to Earth on July 24, 1969. Aboard the space craft were astronauts Neil A. Armstrong, commander; Michael Collins, Command Module (CM) pilot; and Edwin E. (Buzz) Aldrin Jr., Lunar Module (LM) pilot. The CM, 'Columbia', piloted by Collins, remained in a parking orbit around the Moon while the LM, 'Eagle'', carrying astronauts Armstrong and Aldrin, landed on the Moon. On July 20, 1969, Armstrong was the first human to ever stand on the lunar surface, followed by Aldrin. During 2½ hours of surface exploration, the crew collected 47 pounds of lunar surface material for analysis back on Earth. With the success of Apollo 11, the national objective to land men on the Moon and return them safely to Earth had been accomplished.

  3. On the Impact of Cepheid Outliers on the Distance Ladder

    CERN Document Server

    Becker, M R; Rozo, E; Marshall, P; Rykoff, E S

    2015-01-01

    Recent work by Efstathiou (2014) highlighted the importance of outliers in the period-luminosity (PL) relation of Cepheid data on the distance ladder. We present a statistical framework designed to address this difficulty, and apply it to the Cepheid data from the Milky Way (MW), the Large Magellanic Cloud (LMC), and the Riess et al. (2011) (hereafter R11) dataset. We consider two possible models of the outlier population in the R11 Cepheid dataset. One of these models exhibits tension between the PL relation of the R11 cepheids and the MW+LMC cepheids, while the other does not. We extend our models to adequately account for tension between the cepheid data sets when appropriate. Our outlier treatment has a significant impact on the distance scales to Supernovae hosts with Cepheid distances, increasing the uncertainty in these distances by a median factor of ~30%. We further find that our Cepheid outlier treatment translates into a modest, but non-negligible increase in the statistical uncertainty of H0, addi...

  4. Protean career: perspectives of study

    Directory of Open Access Journals (Sweden)

    Litvinova Ye.Yu.

    2013-06-01

    Full Text Available The article analyzes different approaches to study of models of constructing the employment career in current environment. The changes having taken place in interrelationsbetween employees and organizations over recent 15 years led to changes in their mutual expectations including the ones concerning the career development. Boundaryless career based on career mobility and protean career based on subjective understanding of career success are regarded as alternatives to traditional careers. The main attributes of “new careers” are: an increased independence in employee-organization dyads, low level of mutual obligations, freedom of choice, self-actualization, priority of career loyalty and self-management in contrast to organization loyalty. Changes in career conceptualizing inevitably led to revision of career competences. Traditional professional competences give way to career meta-competences like adaptiveness, capacity for education, self-management, taking responsibility. At the same time empirical studies displaya prematurity of statements about the expressed loss of interest to traditional careers.

  5. On the Consistency of the Ladder Approximation and the Rainbow Approximation of Dyson-Schwinger Equation of QCD

    CERN Document Server

    Chang, L; Chang, Lei; Liu, Yu-xin

    2006-01-01

    We study the consistency of the ladder approximation and the rainbow approximation of the Dyson-Schwinger equation of QCD. By considering the non-Abelian property of QCD, we show that the QED-type Ward-Takahashi identity is not required for the rainbow-ladder approximation of QCD. It indicates that there does not exists any internal inconsistency in the usual rainbow-ladder approximation of QCD. In addition, we propose an modified ladder approximation which guarantees the Slavnov-Taylor identity for the quark-gluon vertex omitting the ghost effect in the approximation.

  6. Custom Career Expos.

    Science.gov (United States)

    Barnard, Tracie

    2001-01-01

    At Florida State University, the career placement staff tailors its career expos to the needs of students and employers. This article discusses how they market their expos; their online recruiter registration; how they recruit volunteers; and the importance of hospitality. (Author/MKA)

  7. The career distress scale

    DEFF Research Database (Denmark)

    Creed, Peter; Hood, Michelle; Praskova, Anna

    2016-01-01

    weaknesses. The absence of a practical, validated scale to assess this construct restricts research related to career distress and limits practitioners who need to assess and treat it. Using a sample of 226 young adults (mean age 20.5 years), we employed item response theory to assess 12 existing career...

  8. Career guidance in communities

    DEFF Research Database (Denmark)

    Thomsen, Rie

    The aim of this paper is to inspire practitioners and professionals to leave their offices to bring career guidance into communities that might not identify with career guidance in the first instance. By making the effort to engage with communities, practitioners may bring about a critical change...

  9. The Lifetime Career Manager.

    Science.gov (United States)

    Cabrera, James C.; Albrecht, Charles F., Jr.

    This book provides a road map for readers to plan and develop their careers. It suggests self-assessment, setting short- and long-term goals, and working toward identified goals in short increments. Beyond careers, attention is paid to lifestyles and personal values. The book is organized in 17 chapters that cover the following topics: (1) the…

  10. Career Development in Spain.

    Science.gov (United States)

    Talavera, Elvira Repetto; Moreno, Luisa Rodriguez; Romeo, Javier; Malik, Beatriz

    In Spain, the term "career development" refers to vocational or career guidance services. The 1983 Law on University Reform conferred on universities the freedom of teaching, endowing them with legal status and administrative powers. Thus, there are no regulations regarding guidance at this educational level. Guidance departments in…

  11. Health Inequality and Careers

    Science.gov (United States)

    Robertson, Peter J.

    2014-01-01

    Structural explanations of career choice and development are well established. Socioeconomic inequality represents a powerful factor shaping career trajectories and economic outcomes achieved by individuals. However, a robust and growing body of evidence demonstrates a strong link between socioeconomic inequality and health outcomes. Work is a key…

  12. Voices for Careers.

    Science.gov (United States)

    York, Edwin G.; Kapadia, Madhu

    Listed in this annotated bibliography are 502 cassette tapes of value to career exploration for Grade 7 through the adult level, whether as individualized instruction, small group study, or total class activity. Available to New Jersey educators at no charge, this Voices for Careers System is also available for duplication on request from the New…

  13. Bibliography on Career Education.

    Science.gov (United States)

    Bridgeport Public Schools, CT.

    A research bibliography for use by persons involved in implementing career education concepts, the document contains all of the commercially produced multimedia used by Connecticut's exemplary project in career education. The resources listed include books, films, filmstrips, records, cassettes, games, picture story study prints, kits, and…

  14. Exploring MBA Career Success

    Science.gov (United States)

    Hay, Amanda; Hodgkinson, Myra

    2006-01-01

    Purpose: The purpose of this paper is to examine the meaning of career success in relation to the attainment of an MBA degree, for a group of experienced managers. In so doing, the paper aims to consider the adequacy of MBA career success, defined solely in terms of external criteria. Design/methodology/approach: A total of 36 in-depth interviews…

  15. What Is "Career Ready"?

    Science.gov (United States)

    Association for Career and Technical Education, 2010

    2010-01-01

    All too often, the terms "career ready" and "college ready" are used interchangeably, and discussions around career readiness are limited to traditional academic skills that allow students to successfully enroll in postsecondary education. While there is no debate that a rigorous level of academic proficiency, especially in math and literacy, is…

  16. Athletes’ careers across cultures

    DEFF Research Database (Denmark)

    Ryba, Tatiana; Stambulova, Natalia

    This symposium will introduce a project developed under the auspices of the International Society of Sport Psychology (ISSP) in an effort to inspire and support the development of culturally sensitive theoretical frameworks and research methodologies in career studies and career assistance services...... in this symposium continue the initiated dialogue of the relevance of culture and cultural issues in their analyses of how social and cultural discourses shape career development and career transitions of athletes in different countries. Opening the foundations of sport psychological knowledge to culturally diverse...... and, perhaps, unfamiliar intellectual traditions, perspectives and concerns, the symposium will demonstrate how local knowledge of problems enables researchers and practitioners to better understand the dynamics of cultural diversity within the topic of athlete career development and assistance....

  17. Career Path Descriptions

    CERN Document Server

    Charkiewicz, A

    2000-01-01

    Before the Career Path system, jobs were classified according to grades with general statutory definitions, guided by the "Job Catalogue" which defined 6 evaluation criteria with example illustrations in the form of "typical" job descriptions. Career Paths were given concise statutory definitions necessitating a method of description and evaluation adapted to their new wider-band salary concept. Evaluations were derived from the same 6 criteria but the typical descriptions became unusable. In 1999, a sub-group of the Standing Concertation Committee proposed a new guide for describing Career Paths, adapted to their wider career concept by expanding the 6 evaluation criteria into 9. For each criterion several levels were established tracing the expected evolution of job level profiles and personal competencies over their longer salary ranges. While providing more transparency to supervisors and staff, the Guide's official use would be by services responsible for vacancy notices, Career Path evaluations and rela...

  18. Security careers skills, compensation, and career paths

    CERN Document Server

    Walker, Stephen W

    2014-01-01

    The third edition of Security Careers is the authoritative reference for current job descriptions and pay practices of security, compliance, ethics, environmental, health and safety occupations. The job descriptions and compensation ranges in this report are drawn from research from the Foushée Group, which has been conducting this research since 1980. Security Careers includes more than 75 job descriptions for security-related positions, which range from the entry-level security guard to the top global corporate executive. It also provides four years of compensation trend data to give a th

  19. Chemodiversity of Ladder-Frame Prymnesin Polyethers in Prymnesium parvum.

    Science.gov (United States)

    Rasmussen, Silas Anselm; Meier, Sebastian; Andersen, Nikolaj Gedsted; Blossom, Hannah Eva; Duus, Jens Øllgaard; Nielsen, Kristian Fog; Hansen, Per Juel; Larsen, Thomas Ostenfeld

    2016-09-23

    Blooms of the microalga Prymnesium parvum cause devastating fish kills worldwide, which are suspected to be caused by the supersized ladder-frame polyether toxins prymnesin-1 and -2. These toxins have, however, only been detected from P. parvum in rare cases since they were originally described two decades ago. Here, we report the isolation and characterization of a novel B-type prymnesin, based on extensive analysis of 2D- and 3D-NMR data of natural as well as 90% (13)C enriched material. B-type prymnesins lack a complete 1,6-dioxadecalin core unit, which is replaced by a short acyclic C2 linkage compared to the structure of the original prymnesins. Comparison of the bioactivity of prymnesin-2 with prymnesin-B1 in an RTgill-W1 cell line assay identified both compounds as toxic in the low nanomolar range. Chemical investigations by liquid chromatography high-resolution mass spectrometry (LC-HRMS) of 10 strains of P. parvum collected worldwide showed that only one strain produced the original prymnesin-1 and -2, whereas four strains produced the novel B-type prymnesin. In total 13 further prymnesin analogues differing in their core backbone and chlorination and glycosylation patterns could be tentatively detected by LC-MS/HRMS, including a likely C-type prymnesin in five strains. Altogether, our work indicates that evolution of prymnesins has yielded a diverse family of fish-killing toxins that occurs around the globe and has significant ecological and economic impact.

  20. Applying Social Cognitive Career Theory to Training Career Counselors.

    Science.gov (United States)

    O'Brien, Karen M.; Heppner, Mary J.

    1996-01-01

    Applies the social cognitive career theory to training career counselors. Proposes extending the theory to understand and influence trainees' interest, engagement, and performance in career counseling. Suggestions are made for future research and for training students to be interested, involved, and skilled in providing career counseling. (FC)

  1. Social Cognitive Career Theory and Middle School Student Career Exploration

    Science.gov (United States)

    Sickinger, Pamela H.

    2013-01-01

    Within the framework of social cognitive career theory, social cognitive career variables, demographic variables, and the contextual variable, parent support, were examined to determine their predictive value for eighth-grade students' career exploration behavior. Results suggest that the social cognitive career variable, intentions/goals,…

  2. Social Cognitive Career Theory and Middle School Student Career Exploration

    Science.gov (United States)

    Sickinger, Pamela H.

    2013-01-01

    Within the framework of social cognitive career theory, social cognitive career variables, demographic variables, and the contextual variable, parent support, were examined to determine their predictive value for eighth-grade students' career exploration behavior. Results suggest that the social cognitive career variable, intentions/goals,…

  3. Narrating Career, Positioning Identity: Career Identity as a Narrative Practice

    Science.gov (United States)

    LaPointe, Kirsi

    2010-01-01

    In contrast to traditional definitions of career identity as an individual construct, this article argues for a discursive approach to career identity as a narrative practice. Career identity is conceptualized as a practice of articulating, performing and negotiating identity positions in narrating career experiences. By using the concept of…

  4. Developmental Issues in Career Maturity and Career Decision Status.

    Science.gov (United States)

    Patton, Wendy; Creed, Peter A.

    2001-01-01

    Reports cross-sectional data from 1,971 Australian adolescents who completed the Career Decision Scale and the Career Development Inventory. Results illustrate a developmental progression in career maturity, although a less uniform pattern emerged with gender differences. Findings regarding career indecision also presented a complex picture and…

  5. The Evaluation of Career Indecision in Career Development.

    Science.gov (United States)

    Lewko, John H.

    1994-01-01

    Examines research on career indecision through review of literature on variables consistently investigated as predictors of career indecision and tools incorporated to measure career indecision. Raises eight issues that would impact on evaluation efforts in area of career indecision. Encourages practitioners to test validity of mental models that…

  6. Doped spin ladders under magnetic field; Echelles de spins dopees sous champ magnetique

    Energy Technology Data Exchange (ETDEWEB)

    Roux, G

    2007-07-15

    This thesis deals with the physics of doped two-leg ladders which are a quasi one-dimensional and unconventional superconductor. We particularly focus on the properties under magnetic field. Models for strongly correlated electrons on ladders are studied using exact diagonalization and density-matrix renormalization group (DMRG). Results are also enlightened by using the bosonization technique. Taking into account a ring exchange it highlights the relation between the pairing of holes and the spin gap. Its influence on the dynamics of the magnetic fluctuations is also tackled. Afterwards, these excitations are probed by the magnetic field by coupling it to the spin degree of freedom of the electrons through Zeeman effect. We show the existence of doping-dependent magnetization plateaus and also the presence of an inhomogeneous superconducting phase (FFLO phase) associated with an exceeding of the Pauli limit. When a flux passes through the ladder, the magnetic field couples to the charge degree of freedom of the electrons via orbital effect. The diamagnetic response of the doped ladder probes the commensurate phases of the t-J model at low J/t. Algebraic transverse current fluctuations are also found once the field is turned on. Lastly, we report numerical evidences of a molecular superfluid phase in the 3/2-spin attractive Hubbard model: at a density low enough, bound states of four fermions, called quartets, acquire dominant superfluid fluctuations. The observed competition between the superfluid and density fluctuations is connected to the physics of doped ladders. (author)

  7. Biomechanical analysis of loading/unloading a ladder on a truck.

    Science.gov (United States)

    Moriguchi, Cristiane Shinohara; Carnaz, Leticia; de Miranda, Luiz Carlos; Marklin, Richard William; Coury, Helenice Jane Cote Gil

    2012-01-01

    Loading/unloading a ladder on vehicles are frequent tasks and involve overhead handling that may expose workers to risk factors of shoulder musculoskeletal disorders. The objective of the present study was to evaluate posture, forces required and perceived exertion when loading and unloading the ladder on a utility truck. Thirteen male overhead line workers from an electric utility in Brazil participated in this study. Shoulder elevation angle was measured using inclinometers. The required force to load/unload the ladder was measured by dynamometer. Subjective assessment of the perceived exertion was recorded to compare the exertion reported during the test conditions to the field conditions. The task of loading/unloading the ladder presented risks of shoulder musculoskeletal disorders (MSDs) to workers because it requires high levels of force (approximately 60% of the maximal force) combined with overhead posture of the shoulders (more than 100° from the neutral posture). Age and height presented to interfere in biomechanical risks presented in load/unload task. There was no significant difference between the subjective exertion during the test conditions and handling the ladder in the field. Ergonomic intervention is recommended to reduce these risks for shoulder MSDs.

  8. DNA repair. [UV radiation

    Energy Technology Data Exchange (ETDEWEB)

    Setlow, R.

    1978-01-01

    Some topics discussed are as follows: difficulty in extrapolating data from E. coli to mammalian systems; mutations caused by UV-induced changes in DNA; mutants deficient in excision repair; other postreplication mechanisms; kinds of excision repair systems; detection of repair by biochemical or biophysical means; human mutants deficient in repair; mutagenic effects of UV on XP cells; and detection of UV-repair defects among XP individuals. (HLW)

  9. Career Development Assistance for Freshmen and Sophomores by Career Advisers

    OpenAIRE

    小玉, 小百合

    2005-01-01

    The Faculty of Lifelong Learning and Career Studies at Hosei University was established 2003 and from the beginning has provided a career development support system for undergraduates. The author of this paper assists freshman and sophomore undergraduates as a career adviser. This paper analyzes the actual support system of students and discusses two points:1. How to support students’ career development as career advisers.2. What kind of effect the support has on undergraduates.Undergrodu...

  10. Career Exploration among College Students

    Science.gov (United States)

    Fouad, Nadya A.; Ghosh, Arpita; Chang, Wen-hsin; Figueiredo, Catia; Bachhuber, Thomas

    2016-01-01

    College is a significant time for undergraduates to declare majors and choose career paths. For many undergraduates, choosing both a major and a career path is challenging. Research shows that many universities deliver career interventions through dedicated career decision-making courses (Mead & Korschgen, 1994). However, there has been…

  11. Holland's Theory and Career Assessment.

    Science.gov (United States)

    Reardon, Robert C.; Lenz, Janet G.

    1999-01-01

    Career assessment activities in the Self-Directed Search and constructs in Holland's theory increase understanding of an individual's personal career theory (PCT). The PCT provides information about a person's readiness for career decision making and the types of career interventions that might be effective. (Author/SK)

  12. Career Exploration among College Students

    Science.gov (United States)

    Fouad, Nadya A.; Ghosh, Arpita; Chang, Wen-hsin; Figueiredo, Catia; Bachhuber, Thomas

    2016-01-01

    College is a significant time for undergraduates to declare majors and choose career paths. For many undergraduates, choosing both a major and a career path is challenging. Research shows that many universities deliver career interventions through dedicated career decision-making courses (Mead & Korschgen, 1994). However, there has been…

  13. Holland's Theory and Career Assessment.

    Science.gov (United States)

    Reardon, Robert C.; Lenz, Janet G.

    1999-01-01

    Career assessment activities in the Self-Directed Search and constructs in Holland's theory increase understanding of an individual's personal career theory (PCT). The PCT provides information about a person's readiness for career decision making and the types of career interventions that might be effective. (Author/SK)

  14. Effect of blank holder pressure on viscous pressure forming aluminum alloy ladder parts

    Institute of Scientific and Technical Information of China (English)

    王忠金; 王新云; 王仲仁

    2002-01-01

    Viscous pressure forming (VPF), is suitable for forming difficult-to-form sheet metal parts. An investigation in the effect of blank holder pressure (BHP) on VPF aluminum alloy ladder parts was conducted. Based on experimental and numerical simulation results of the effect of BHP on dimensional accuracy, wall-thickness reduction, forming pressure, material flow and defects (such as wrinkling and fracture) of specimens, the effect patterns of BHP load path on VPF ladder parts were explained. The limits of BHP corresponding to specimens with no defect and with wrinkling or fracture defect were determined. In the limits of formable BHP, the variable load path of BHP was beneficial to drawing blank into the die and decreasing wall-thickness reduction of specimens. The experimental results show that the ladder parts of good surface fineness and high dimensional accuracy can be obtained by variable load paths of BHP.

  15. Nestling diets and provisioning rates of sympatric Golden-fronted and Ladder-backed Woodpeckers

    Science.gov (United States)

    Schroeder, Evonne L.; Boal, Clint W.; Glasscock, Selma N.

    2013-01-01

    We examined comparative food use and provisioning of Golden-fronted (Melanerpes aurifrons) and Ladder-backed (Picoides scalaris) woodpeckers at the Rob and Bessie Welder Wildlife Foundation Refuge, in San Patricio County, Texas. We combined video surveillance and direct observations to monitor provisioning rates and identify items delivered by adult woodpeckers to nestlings. We collected 328 hours of data at Ladder-backed Woodpecker nest cavities and 230 hours of data at Golden-fronted Woodpecker nest cavities. Ladder-backed Woodpecker nestling diets consisted of 100% animal matter, comprised of invertebrate larvae (99%) and invertebrate adults (nestlings were also high in animal matter (77%) with more invertebrate adults (55%) and fewer invertebrate larvae (27%), but also included vegetable matter (16%). Morisita's measure of overlap suggested a relatively low dietary overlap of 31% between nestlings of these two sympatric woodpecker species. Foraging methods used by these species may explain their low dietary overlap and facilitate their coexistence.

  16. Climbing a ladder: a step-by-step approach to understanding the concept of agroecosystem health.

    Science.gov (United States)

    Alkorta, I; Albizu, I; Amezaga, I; Onaindia, M; Buchner, V; Garbisu, C

    2004-01-01

    Population and individual health is linked to agroecosystem health. To comprehend the concept of agroecosystem health, one should climb a ladder consisting of several successive steps, each rung presenting a certain degree of instability (conceptual difficulty and uncertainty) in an advisable but not inevitable order. Here we suggest a ladder consisting of the following concepts: ecosystem, agroecosystem, biodiversity, sustainability, ecosystem health, and agroecosystem health. Although these concepts are to a certain extent well understood and grasped by scientists, politicians, natural resource managers, and environmentalists, some steps are still highly debatable, unclear, and present a considerable degree of reluctance to be defined and understood. Consequently, much empirical and theoretical effort must be made to construct solid conceptual ladders made up of such steps. In this enterprise, a traditional reductionistic approach confining interpretations to narrow scientific disciplines is unadvisable. Holistic, transdisciplinary approaches are required to reach the desired goal.

  17. Dynamic Covalent Assembly of Peptoid-Based Ladder Oligomers by Vernier Templating.

    Science.gov (United States)

    Wei, Tao; Jung, Jae Hwan; Scott, Timothy F

    2015-12-30

    Dynamic covalent chemistry, in conjunction with template-directed assembly, enables the fabrication of extended nanostructures that are both precise and tough. Here we demonstrate the dynamic covalent assembly of peptoid-based molecular ladders with up to 12 rungs via scandium(III)-catalyzed imine metathesis by employing the principle of Vernier templating, where small precursor units with mismatched numbers of complementary functional groups are coreacted to yield larger structures with sizes determined by the respective precursor functionalities. Owing to their monomer diversity and synthetic accessibility, sequence-specific oligopeptoids bearing dynamic covalent pendant groups were employed as precursors for molecular ladder fabrication. The generated structures were characterized using matrix-assisted laser desorption/ionization mass spectrometry and gel permeation chromatography, confirming successful molecular ladder fabrication.

  18. Statistical Transfer Matrix Study of the ± J Multileg Ising Ladders and Tubes

    Science.gov (United States)

    Hida, Kazuo

    2012-07-01

    Finite temperature properties of symmetric ± J multileg Ising ladders and tubes are investigated using the statistical transfer matrix method. The temperature dependences of the specific heat and entropy are calculated. In the case of tubes, it is found that the ground-state entropy shows an even--odd oscillation with respect to the number of legs. The same type of oscillation is also found in the ground-state energy. On the contrary, these oscillations do not take place in ladders. From the temperature dependence of the specific heat, it is found that the lowest excitation energy is 4J for even-leg ladders while it is 2J otherwise. The physical origin of these behaviors is discussed based on the structure of excitations.

  19. Flux-driven quantum phase transitions in two-leg Kitaev ladder topological superconductor systems

    Science.gov (United States)

    Wang, H. Q.; Shao, L. B.; Pan, Y. M.; Shen, R.; Sheng, L.; Xing, D. Y.

    2016-12-01

    We investigate a two-leg ladder topological superconductor system consisting of two parallel Kitaev chains with interchain coupling. It is found that either uniform or staggered fluxes threading through the ladder holes may change the ladder system from the BDI class in the Altland-Zirnbauer (AZ) classification to the D class. After explicitly calculating the topological Z and/or Z2 indices and from the evolution of Majorana zero energy states (MZES), we obtain the flux-dependent phase diagrams, and find that quantum phase transitions between topologically distinct phases characterized by different number of MZES may happen by simply tuning the flux, which could be realized experimentally in ultracold systems.

  20. Development of Single- and Double-sided Ladders for the ILD Vertex Detectors

    CERN Document Server

    Baudot, Jerome; Chon-Sen, Nathalie; Dulinski, Wojciech; Hegner, Franziska; Gelin-Galibel, Marie; Gauld, Rhorry; Goffe, Mathieu; Goldstein, Joel; Gregor, Ingrid; Hu-Guo, Christine; Koetz, Ulrich; Nomerotski, Andrei; Winter, Marc

    2012-01-01

    We discuss two projects exploring the integration of thin CMOS pixel sensors in order to prototype ladders matching the geometry needed for the ILD vertex detector. The PLUME project has designed and fabricated full-size and fully functional double- sided layers which currently reach 0.6 % X0 and aim for 0.3 % X0 in mid-2012. Another approach, SERNWIETE, consists in wrapping the sensors in a polyimide-based micro-cable to obtain a supportless single-sided ladder with a material budget around 0.15 % X0. First promising samples have been produced and the full-size prototype is expected in spring 2012.

  1. Explaining choice option attractiveness by beliefs elicited by the laddering method

    DEFF Research Database (Denmark)

    Grunert, Klaus G.; Bech-Larsen, Tino

    2005-01-01

    option. The laddering method is used to elicit beliefs of all three types for a choice between conventional and organic pork. As a benchmark, beliefs were also elicited in the traditional way advocated by Ajzen and Fishbein. Using both sets of beliefs in a subsequent survey, it was shown that the beliefs...... elicited by the laddering method increase explanatory power with regard to choice option attractiveness beyond the beliefs elicited by the Ajzen and Fishbein method, and that this additional explanatory power was due to those beliefs which relate the choice option to concepts with a higher level...

  2. Number of embeddings of circular and Mbius ladders on surfaces

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    There are many results on the flexibility of(general) embeddings of graphs,but few are known about that of strong embeddings.In this paper,we study the flexibility of strong embeddings of circular and Mbius ladders on the projective plane and the Klein bottle by using the joint tree model of embeddings.The numbers of(nonequivalent) general embeddings and strong embeddings of circular and Mbius ladders on these two nonorientable surfaces are obtained,respectively.And the structures of those strong embeddings are described.

  3. Magnetic Long-Range Order and Colossal Magnetoresistance Effect in Double Exchange Ladders

    Institute of Scientific and Technical Information of China (English)

    马冬梅; 邹良剑

    2001-01-01

    By applying Bogoliubov's ineguality to double-exchange(DE) ladders, we show that the ferromagnetic(FM) order is absent in the new DE systems at finite temperatures. The incorporation of Jahn-Teller electron-phonon coupling, orbital degeneracy and on-site Coulomb interaction with the DE interaction do not preserve these orders. The long-wavelength thermal fluctuations of the spins oversome the DEFM correlation and destroy the FM orders. The implication of the absence of FM order on the transport of the DE ladders is discussed.

  4. Numerical Study of Luttinger Liquid Regime of Two-Leg Hubbard Ladders

    Institute of Scientific and Technical Information of China (English)

    CHENG Kuan; LIU Yu-Liang

    2005-01-01

    @@ We investigate two-leg Hubbard ladders in the Luttinger liquid regime by the density-matrix renormalization group method. Applicability of the bond concept in this region is discussed in a quantitative comparison of power-law decay exponents, energy components and anti-bond occupations between ladders and chains. The interaction between bond and anti-bond bands induced by finite Hubbard repulsion U is emphasized by our numerical results. Our quantitative results are useful for the justification of the validity of various analytical approaches.

  5. Perancangan Permainan Word Ladder Menggunakan Algoritma Depth First Search Pada Android

    OpenAIRE

    Rangkuti, Rafiqa Ulfah

    2014-01-01

    Word ladder is a game to make a word chain by search a new word from the previous word with only differ by one letter. Depth first search algorithm can be implemented into an application to search the words. Depth first search algorithm is a searching method on tree structure by explore a branch of tree deeply until the solution is found. The application is built to help the player in finding the right words to make a word chain in the word ladder game. The result obtained from the applicatio...

  6. The Plastic Surgery Compass: Navigating the Reconstructive Ladder in the Personalized Health Care Era

    Science.gov (United States)

    2016-01-01

    Summary: The reconstructive ladder and the reconstructive elevator have withstood the test of time as didactic tools for resident education. Over time, many alternative models have been suggested to incorporate the technological advances in plastic surgery, but none of them have focused on the patient. Changes in practice and the trend toward personalized health care demand a 360-degree evaluation and solution of surgical problems incorporating patient-specific characteristics. We, therefore, suggest the concept of the plastic surgery compass to navigate the ladder. PMID:27757348

  7. Composing and Arranging Careers

    Science.gov (United States)

    Schwartz, Elliott; And Others

    1977-01-01

    With the inspiration, the originality, the skill and craftsmanship, the business acumen, the patience, and the luck, it's possible to become a classical composer, pop/rock/country composer, jingle composer, or educational composer. Describes these careers. (Editor/RK)

  8. Agribusiness Career Exploration Winner

    Science.gov (United States)

    Gutshall, Bill

    1976-01-01

    Describes the planning, development, status, and instructional materials used in a career awaremess program in agribusiness in Chillicothe, Missouri. The four classes in the program and the results of an appraisal are also described. (HD)

  9. A smashing career choice

    CERN Multimedia

    Battersby, Stephen

    2007-01-01

    "There's more diversity in physics careers than you might think. Stephen Battersby talks to three very different phsicists, all doing their bit to help us learn more about the world we live in." (2 pages)

  10. A Career Development Model.

    Science.gov (United States)

    Sharf, Richard S.; And Others

    1979-01-01

    The students' task is more complex as different offices at a college or university sometimes provide overlapping career services. Lack of interdepartmental communication and cooperation may interfere in assisting students. The article offers suggestions for interdepartmental cooperation. (Author/CMG)

  11. Psychology students' career expectations

    Directory of Open Access Journals (Sweden)

    Eva Boštjančič

    2011-04-01

    Full Text Available Developing career expectations is a process through which young people get to know their own characteristics, skills, and values, assess their opportunities on the labor market, and develop various career plans and goals for themselves. In this study, 190 students completed the "Career Planning" questionnaire, which is composed of a series of open-response questions. The results showed that students have very little work experiences connected with psychology and more in administration, working with children, and volunteer work. They tend to evaluate their skills as high. Their career expectations are distributed by employment area, in which they draw attention to various obstacles in achieving their set goals, especially with regard to personality factors and financing. They primarily expect good interpersonal relations and working conditions from their future workplaces.

  12. Career practitioners' conceptions of social media in career services

    Science.gov (United States)

    Kettunen, Jaana; Vuorinen, Raimo; Sampson, James P.

    2013-01-01

    This article reports the outcomes of a study, undertaken from a phenomenographic perspective, of career practitioners’ conceptions of social media usage in career services. Fifteen Finnish career practitioners – representing comprehensive, secondary and higher education as well as public employment services – were interviewed in focus groups. The analysis of the interview data revealed five distinct descriptive categories reflecting the career practitioners’ conceptions of social media's use in career services. Social media in career services was conceived as (1) unnecessary, (2) dispensable, (3) a possibility, (4) desirable and (5) indispensable. The results indicated associations between career practitioners’ conceptions and their practice. Moreover, the critical aspects identified in this study can be used to support the career practitioners’ understanding of new technologies in career services. PMID:24009407

  13. Carolinas Energy Career Center

    Energy Technology Data Exchange (ETDEWEB)

    Classens, Anver; Hooper, Dick; Johnson, Bruce

    2013-03-31

    Central Piedmont Community College (CPCC), located in Charlotte, North Carolina, established the Carolinas Energy Career Center (Center) - a comprehensive training entity to meet the dynamic needs of the Charlotte region's energy workforce. The Center provides training for high-demand careers in both conventional energy (fossil) and renewable energy (nuclear and solar technologies/energy efficiency). CPCC completed four tasks that will position the Center as a leading resource for energy career training in the Southeast: • Development and Pilot of a New Advanced Welding Curriculum, • Program Enhancement of Non-Destructive Examination (NDE) Technology, • Student Support through implementation of a model targeted toward Energy and STEM Careers to support student learning, • Project Management and Reporting. As a result of DOE funding support, CPCC achieved the following outcomes: • Increased capacity to serve and train students in emerging energy industry careers; • Developed new courses and curricula to support emerging energy industry careers; • Established new training/laboratory resources; • Generated a pool of highly qualified, technically skilled workers to support the growing energy industry sector.

  14. Pectus excavatum repair

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/002949.htm Pectus excavatum repair To use the sharing features on this page, please enable JavaScript. Pectus excavatum repair is surgery to correct pectus excavatum . This ...

  15. Electronics Principles Avionics Aerospace Ground Equipment (AGE) Career Ladder AFSCS 326X0A, B, C, D.

    Science.gov (United States)

    1976-12-27

    This report summarizes the results of the administration of the Electronics Principles survey to airmen assigned to the Avionics Aerospace Ground Equipment (AGE) specialties, including 326XOA, Manually Operated Avionics AGE; 326XOB, Automatic Avionics AGE; 326XOC, F/RF-4 Peculiar AGE, and 326XOD, A-7D Avionics AGE. The report gives a detailed listing of the technical tasks and knowledge needed to

  16. Heating Systems Career Ladder AFSC 545X2 Civilian Occupational Series 4204, 4742, 4749, 5402, 5406, and 5309.

    Science.gov (United States)

    1985-01-01

    CIRCULATING PUMPS TN STALL CORROSION TESTERS INSTALL DISTRIBUTION LINES INSTALL ELECTRICAL CONTROLS INSTALL FEED OR CONDENSATE PUMPS INSTALL FEED WATER...94 J264 ADJUST AIR COMPRESOR BELTS 94 K317 REMOVE OR REPLACE GAUGES 94 K312 REMOVE OR REPLACE CHECK VALVES 94 P461 PERFORM HIGH TEMPERATURE WATER

  17. When "Other" Initiate Repair.

    Science.gov (United States)

    Schegloff, Emanuel A.

    2000-01-01

    Elaborates on the locus of other-initiated repair, and reports on a number of environments in which others initiate repair turns later than the one directly following the trouble-source turn. Describes several ways that other initiation of repair, which occurs in next-turn position, may be delayed within that position. (Author/VWL)

  18. Entrepreneurial Progress: Climbing The Entrepreneurial Ladder in Europe and The US

    NARCIS (Netherlands)

    P.W. van der Zwan (Peter); I. Verheul (Ingrid); A.R. Thurik (Roy); I. Grilo (Isabel)

    2009-01-01

    textabstractWe investigate which countries have the highest potential to achieve entrepreneurial progress. This progress is defined using an entrepreneurial ladder with five successive steps: “never thought about starting a business”, “thinking about starting a business”, “taking steps to start a bu

  19. Commutation-relation-preserving ladder operators for propagating optical fields in nonuniform lossy media

    DEFF Research Database (Denmark)

    Partanen, Mikko; Häyrynen, Teppo; Tulkki, Jukka;

    2015-01-01

    We have recently developed a quantized fluctuational electrodynamics (QFED) formalism to describe the quantum aspects of local thermal balance formation and to formulate the electromagnetic field ladder operators so that they no longer exhibit the anomalies reported for resonant structures. Here we...

  20. Expressions of excited states by triplet dimers in heisenberg antiferromagnetic ladders. Analysis of magnetic Raman spectra

    Energy Technology Data Exchange (ETDEWEB)

    Natsume, Yuhei; Tada, Shinichiro; Suzuki, Toshihiko [Chiba Univ., Graduate School of Science and Technology, Chiba (Japan)

    2002-06-01

    Characteristic properties of excited states in antiferromagnetic ladder systems with spin-1/2 are investigated in relation with the theoretical analysis of the quite asymmetric shape of the peak for twice the spin gap {delta}{sub g} in magnetic Raman spectra. Here, the structure of exchange-scattering spectra are reproduced by the numerical calculation for the finite Heisenberg ladder, in which legs with antiferromagnetic bond J{sub c} is connected by rungs with antiferromagnetic bond J{sub r}. The singlet ground state in this system can be expressed as the ordering of singlet dimers on rungs in the ladder for J{sub c}/J{sub r} {yields} +0. In fact, the value of 0.1 is adopted to be the ratio of J{sub c}/J{sub r} in order to discuss the experimental work of the magnetic Raman spectra for the ladder of V{sup 4+} ions in the oxide compound CaV{sub 2}O{sub 5} reported in Konstantinovic et al., Phys. Rev. B61 (2000), 15185. As for this peak of 2{delta}{sub g}, quite an asymmetric observed shape is explained by the present calculation. According to the analysis of spectra, we discuss the expression of excited states by triplet dimers on rungs: The dominant contribution of the pair of triplet dimers on adjacent rungs to the corresponding state for 2{delta}{sub g} peak is pointed out. (author)

  1. Means-end chains and laddering: An inventory of problems and an agenda for research

    DEFF Research Database (Denmark)

    Grunert, Klaus G.; Beckmann, Suzanne C.; Sørensen, Elin

    2001-01-01

    Laddering and means-end chains are one of the most promising developments in consumer research since the 1980s. It is an approach that takes consumers' individuality seriously but, nevertheless, comes up with quantitative results. It is rooted in a cognitive approach, and allows for emotional and...

  2. Means-end chains and laddering: An inventory of problems and an agenda for research

    DEFF Research Database (Denmark)

    Grunert, Klaus G.; Grunert, Suzanne C.; Sørensen, Elin

    Executive summary 1. Means-end chains are a device used to understand how consumers mentally link products to self-relevant consequences. Means-end chains are usually measured by a method called laddering. 2. Means-end chains may fall short of tapping all relevant aspects of how consumers think a...

  3. Climbing the "Agricultural Ladder": Social Mobility and Motivations for Migration in an Ecuadorian Colonist Community

    Science.gov (United States)

    Bates, Diane C.; Rudel, Thomas K.

    2004-01-01

    During the early decades of the 20th century in the American Midwest young farming families achieved social mobility by moving up an 'agricultural ladder' through a series of rungs, from unpaid family work, to wage labor, to tenant farming, to a mortgaged farm, and, finally, to full ownership of a farm. In this paper we use the concept of an…

  4. Measuring subjective meaning structures by the laddering method: Theoretical considerations and methodological problems

    DEFF Research Database (Denmark)

    Grunert, Klaus G.; Grunert, Suzanne C.

    1995-01-01

    Starting from a general model of measuring cognitive structures for predicting consumer behaviour, we discuss laddering as a possible method to obtain estimates of consumption-relevant cognitive structures which will have predictive validity. Four criteria for valid measurement are derived...

  5. Laughlin-like States in Bosonic and Fermionic Atomic Synthetic Ladders

    Directory of Open Access Journals (Sweden)

    Marcello Calvanese Strinati

    2017-06-01

    Full Text Available The combination of interactions and static gauge fields plays a pivotal role in our understanding of strongly correlated quantum matter. Cold atomic gases endowed with a synthetic dimension are emerging as an ideal platform to experimentally address this interplay in quasi-one-dimensional systems. A fundamental question is whether these setups can give access to pristine two-dimensional phenomena, such as the fractional quantum Hall effect, and how. We show that unambiguous signatures of bosonic and fermionic Laughlin-like states can be observed and characterized in synthetic ladders. We theoretically diagnose these Laughlin-like states focusing on the chiral current flowing in the ladder, on the central charge of the low-energy theory, and on the properties of the entanglement entropy. Remarkably, Laughlin-like states are separated from conventional liquids by Lifschitz-type transitions, characterized by sharp discontinuities in the current profiles, which we address using extensive simulations based on matrix-product states. Our work provides a qualitative and quantitative guideline towards the observability and understanding of strongly correlated states of matter in synthetic ladders. In particular, we unveil how state-of-the-art experimental settings constitute an ideal starting point to progressively tackle two-dimensional strongly interacting systems from a ladder viewpoint, opening a new perspective for the observation of non-Abelian states of matter.

  6. Comparison of up ladder type and terraced type normalizing heat treatments of heavy cylinder

    Institute of Scientific and Technical Information of China (English)

    孙建亮; 彭艳; 邱丑武; 张永振

    2016-01-01

    Because of the mixed grain and coarse grain structure, the long heat treatment cycle and large energy conservation in the heavy cylinder heat treatment process, the up ladder type and terraced type normalizing heat treatment of heavy cylinder after rolling were put forward. The microstructure and mechanical properties of 2.25Cr1Mo0.25V steel after the up ladder type normalizing, terraced type normalizing and isothermal type normalizing were studied. Experimental results show that: 1) For the grain refinement, the twice terraced type normalizing is better than the up ladder type and isothermal type normalizing, and the average grain size is 18μm; 2) The yield strength, tensile strength and−30 °C charpy impact energy after twice terraced type normalizing are 681 MPa, 768 MPa and 181 J, respectively, and the mechanical properties are better than those of the up ladder type and isothermal type normalizing; 3) Compared with the isothermal type normalizing, the holding time of terraced type normalizing can be shortened by 30%, which greatly reduces the energy consumption.

  7. ABC of ladder operators for rationally extended quantum harmonic oscillator systems

    Science.gov (United States)

    Cariñena, José F.; Plyushchay, Mikhail S.

    2017-07-01

    The problem of construction of ladder operators for rationally extended quantum harmonic oscillator (REQHO) systems of a general form is investigated in the light of existence of different schemes of the Darboux-Crum-Krein-Adler transformations by which such systems can be generated from the quantum harmonic oscillator. Any REQHO system is characterized by the number of separated states in its spectrum, the number of ‘valence bands’ in which the separated states are organized, and by the total number of the missing energy levels and their position. All these peculiarities of a REQHO system are shown to be detected and reflected by a trinity (A^+/- , B^+/- , C^+/-) of the basic (primary) lowering and raising ladder operators related between themselves by certain algebraic identities with coefficients polynomially-dependent on the Hamiltonian. We show that all the secondary, higher-order ladder operators are obtainable by a composition of the basic ladder operators of the trinity which form the set of the spectrum-generating operators. Each trinity, in turn, can be constructed from the intertwining operators of the two complementary minimal schemes of the Darboux-Crum-Krein-Adler transformations.

  8. Evaluating the contributions of the CO2 Performance Ladder to improved energy management practices

    NARCIS (Netherlands)

    Rietbergen, M.G.|info:eu-repo/dai/nl/14111634X

    2014-01-01

    The CO2 Performance Ladder is a certifiable scheme for energy management and carbon reporting that is used by several Dutch public authorities as a tool for green public procurement. Achieving certification gives companies a competitive advantage in awarding contracts. This paper aims at evaluating

  9. On the Orchard crossing number of prisms, ladders and other related graphs

    CERN Document Server

    Feder, Elie

    2011-01-01

    This paper deals with the Orchard crossing number of some families of graphs which are based on cycles. These include disjoint cycles, cycles which share a vertex and cycles which share an edge. Specifically, we focus on the prism and ladder graphs.

  10. Gap Caused by Strong Pairing in the Ladder Model of DNA Molecules

    Institute of Scientific and Technical Information of China (English)

    HU Dong-Sheng; ZHU Chen-Ping; ZHANG Long-Qiang; HE Da-Ren; WANG Bing-Hong

    2008-01-01

    By directly diagonalizing the Hamiltonian of the ladder model of deoxyribonucleic acid (DNA) molecules,the density of statcs is obtained.It is found that DNA behaves as a conductor when the interchain hopping is smaller than twice the intrachain one,otherwise,DNA behaves as a semiconductor.

  11. A Demonstration of Helping Adolescents with Mild Intellectual Disability Climb Ladders

    Science.gov (United States)

    Chan, Kok Hoe Anthony; Varahan, Jayashree Lakshmi; Loh, Peng Loong Daniel; Tan, Sey Ing

    2011-01-01

    A research team at a vocational school in Singapore, catering mainly to students between the ages of 17-21 with mild intellectual disability, studied how to best address the challenge of enabling students to learn how to climb ladders (a skill necessary at many job placements). They documented the approach used and suggested extrapolations and…

  12. The physiological effect of a 'climb assist' device on vertical ladder climbing.

    Science.gov (United States)

    Barron, Peter James; Burgess, Katherine; Cooper, Kay; Stewart, Arthur D

    2016-10-15

    'Climb assist' claims to reduce strain when climbing ladders; however, no research has yet substantiated this. The purpose of this study was to assess the physiological and psychophysical effects of climb assist on 30 m ladder climbing at a minimum acceptable speed. Eight participants (six male and two female) climbed a 30 m ladder at 24 rungs per minute with and without climb assist, and were monitored for heart rate (HR), [Formula: see text]O2 and rate of perceived exertion (RPE). All three variables decreased significantly (p climb assist with [Formula: see text]O2 decreasing by 22.5%, HR by 14.8% and RPE decreasing by a mean of 2.3 units on the 10-point Borg scale. When descending the ladder [Formula: see text]O2 decreased by a mean of 42% compared to that ascending. At the minimal acceptable climbing speed climb assist decreases the physiological strain on climbers, as demonstrated by reduced [Formula: see text]O2, HR and perceived exertion. Practitioner Summary: 'Climb assist' systems claim to reduce strain when climbing, however; no research has yet been published to substantiate this. A crossover study compared [Formula: see text]O2, HR and RPE at a minimal acceptable climbing speed with and without climb assist. Climb assist significantly reduced all variables confirming it reduces strain when climbing.

  13. Explaining match outcome and ladder position in the National Rugby League using team performance indicators.

    Science.gov (United States)

    Woods, Carl T; Sinclair, Wade; Robertson, Sam

    2017-04-21

    To examine the extent at which match outcome and ladder position could be explained using team performance indicators in the National Rugby League (NRL). The dataset consisted of 13 performance indicators acquired from each NRL team across the 2016 season (n=376 observations). Data was sorted according to apriori match outcome (win/loss) and ladder position (one to 16). Given the binary and categorical nature of the response variables, two analysis approaches were used; a conditional interference classification tree and ordinal regression. Five performance indicators ('try assists', 'all run meters', 'offloads', 'line breaks' and 'dummy half runs') were retained within the classification tree, detecting 66% of the losses and 91% of the wins. A significant negative relationship was noted between ladder position and 'kick metres' (β (SE)=-0.002 (performance indicators provided the greatest explanation of match outcome and ladder position in the NRL. These results could be used by NRL coaches and analysts as a basis for the development of practice conditions and game strategies that may increase their teams' likelihood of success. Beyond rugby league, this study presents analytical techniques that could be applied to other sports when examining the relationships between performance indicators and match derivatives. Crown Copyright © 2017. Published by Elsevier Ltd. All rights reserved.

  14. Laughlin-like States in Bosonic and Fermionic Atomic Synthetic Ladders

    Science.gov (United States)

    Calvanese Strinati, Marcello; Cornfeld, Eyal; Rossini, Davide; Barbarino, Simone; Dalmonte, Marcello; Fazio, Rosario; Sela, Eran; Mazza, Leonardo

    2017-04-01

    The combination of interactions and static gauge fields plays a pivotal role in our understanding of strongly correlated quantum matter. Cold atomic gases endowed with a synthetic dimension are emerging as an ideal platform to experimentally address this interplay in quasi-one-dimensional systems. A fundamental question is whether these setups can give access to pristine two-dimensional phenomena, such as the fractional quantum Hall effect, and how. We show that unambiguous signatures of bosonic and fermionic Laughlin-like states can be observed and characterized in synthetic ladders. We theoretically diagnose these Laughlin-like states focusing on the chiral current flowing in the ladder, on the central charge of the low-energy theory, and on the properties of the entanglement entropy. Remarkably, Laughlin-like states are separated from conventional liquids by Lifschitz-type transitions, characterized by sharp discontinuities in the current profiles, which we address using extensive simulations based on matrix-product states. Our work provides a qualitative and quantitative guideline towards the observability and understanding of strongly correlated states of matter in synthetic ladders. In particular, we unveil how state-of-the-art experimental settings constitute an ideal starting point to progressively tackle two-dimensional strongly interacting systems from a ladder viewpoint, opening a new perspective for the observation of non-Abelian states of matter.

  15. Career Flow: A Hope-Centered Model of Career Development

    Science.gov (United States)

    Niles, Spencer G.

    2011-01-01

    In this article, the author describes an innovative approach for conceptualizing and managing career development tasks in the 21st century. Theoretical foundations and key concepts related to career flow theory are discussed.

  16. Effects of Discipline-based Career Course on Nursing Students' Career Search Self-efficacy, Career Preparation Behavior, and Perceptions of Career Barriers

    Directory of Open Access Journals (Sweden)

    Soonjoo Park, RN, PhD

    2015-09-01

    Conclusions: The discipline-based career course was effective in decreasing perceptions of career barriers and increasing career search self-efficacy and career preparation behavior among nursing students.

  17. Career management: an active process.

    Science.gov (United States)

    Mackowiak, J; Eckel, F M

    1985-03-01

    The self-assessment, goal-setting, and career-planning techniques of career management are discussed, and the organization's role in career management is discussed. Career management is a planned process, initiated and carried out by an individual with the assistance of others. Because work and nonwork activities are so interrelated, career and life management planning can maximize a pharmacist's personal success. The career- and life-management process begins with the development of a personal definition of success. A self-assessment must be made of one's values, needs, interests, and activities. The next step of the process involves setting goals and establishing a plan or strategy to achieve them. Establishing a career path requires researching alternate career goals. Career competencies are identified that can increase an employee's chances of success. The employer shares the responsibility for career development through coaching, job structuring, and keeping the employee aware of constraints. Through the integration of the roles of the individual and the organization in the career-management process, employees can optimize their contribution to an organization. Pharmacists can successfully manage their careers by applying the techniques of self-assessment, goal setting, and career planning.

  18. Organizational Careers: A forward theory

    Directory of Open Access Journals (Sweden)

    Barney G. Glaser, Ph.D., Hon. Ph.D.

    2010-12-01

    Full Text Available In general, organizations obtain work from people by offering them some kind of career within their structures. The operation of organizations, therefore, depends on people’s assuming a career orientation toward them. To generate this orientation, organizations distribute rewards, working conditions, and prestige to their members according to career level; thus these benefits are properties of the organizational career. To advance in this career is to receive more or better of all or some of these benefits. Generally speaking, therefore, people work to advance their organizational careers. But also, generally speaking, people do not like to talk about their careers or to be asked about them in everyday conversations with many or unknown people. In this sense, a person’s own organizational career is a sensitive or “taboo topic.” Discussions with others about one’s career occur only under the most private, discreet conditions. As a result, while people may talk abstractly and generally about careers, these discussions are typically based on a combination of the little they know of their own career and much speculation. They often have very little particular or general knowledge based on actual careers. These observations apply also to a large sector or the sociological community, as indicated by a brief perusal of the table of contents of sociological monographs and readers on organizations. The topic of careers is seldom discussed and almost never concertedly focused upon.

  19. Career learning and career learning environment in Dutch higher education

    NARCIS (Netherlands)

    Marinka Kuijpers; dr. Frans Meijers

    2014-01-01

    Purpose: The purpose of this paper is to focus on the effects of career development and guidance among students (age 17-23) enrolled in higher education in The Netherlands. First the paper explores whether the development of career competencies contribute to career identity, learning motivation,

  20. Career Counseling: Applying the Systems Theory Framework of Career Development

    Science.gov (United States)

    McMahon, Mary

    2005-01-01

    In recent years, career development and career counseling have increasingly been informed by concepts emanating from the constructivist worldview. For example, the Systems Theory Framework (STF; M. McMahon, 2002; M. McMahon & W. Patton, 1995; W. Patton & M. McMahon, 1997, 1999) of career development has been proposed as a metatheoretical account…

  1. Career learning and career learning environment in Dutch higher education

    NARCIS (Netherlands)

    Meijers, Frans; Kuijpers, Marinka

    2014-01-01

    Purpose: The purpose of this paper is to focus on the effects of career development and guidance among students (age 17-23) enrolled in higher education in The Netherlands. First the paper explores whether the development of career competencies contribute to career identity, learning motivation, cer

  2. Effects of Career Choice Intervention on Components of Career Preparation

    Science.gov (United States)

    Koivisto, Petri; Vinokur, Amiram D.; Vuori, Jukka

    2011-01-01

    This randomized experimental study (N = 1,034) examines both the direct and the indirect effects of the Towards Working Life intervention on 2 components of adolescents' career preparation: preparedness for career choice and attitude toward career planning. The intervention comprised a 1-week workshop program, the proximal goals of which were to…

  3. Career Practitioners' Conceptions of Social Media in Career Services

    Science.gov (United States)

    Kettunen, Jaana; Vuorinen, Raimo; Sampson, James P., Jr.

    2013-01-01

    This article reports the outcomes of a study, undertaken from a phenomenographic perspective, of career practitioners' conceptions of social media usage in career services. Fifteen Finnish career practitioners--representing comprehensive, secondary and higher education as well as public employment services--were interviewed in focus groups. The…

  4. Career learning and career learning environment in Dutch higher education

    NARCIS (Netherlands)

    Marinka Kuijpers; dr. Frans Meijers

    2014-01-01

    Purpose: The purpose of this paper is to focus on the effects of career development and guidance among students (age 17-23) enrolled in higher education in The Netherlands. First the paper explores whether the development of career competencies contribute to career identity, learning motivation, cer

  5. Coping with Career Indecision: Differences between Four Career Choice Types

    Science.gov (United States)

    Lee, Ki-Hak

    2005-01-01

    This study examined the applicability of Gianakos' [1999. Journal of Vocational Behavior, 54, 244-258] typology of career choice--stable, conventional, multiple-trial and unstable--to emotional coping with career indecision. Three hundred-twenty (Men = 203, Women = 117) Korean undergraduates were classified into Gianakos' four career choice types.…

  6. Reducing Adolescent Career Indecision: The ASVAB Career Exploration Program.

    Science.gov (United States)

    Baker, Harley E.

    2002-01-01

    Presents a study that evaluated the Armed Services Vocational Aptitude Battery (ASVAB) Career Exploration Program using nationally representative samples of high school students. Results showed that participation in the ASVAB Program increased career exploration knowledge and reduced forms of career indecision. (Contains 25 references and 1…

  7. Percutaneous mitral valve repair.

    Science.gov (United States)

    Gillinov, A Marc; Liddicoat, John R

    2006-01-01

    Surgical mitral valve repair is the procedure of choice to treat mitral regurgitation of all etiologies. Whereas annuloplasty is the cornerstone of mitral valve repair, a variety of other surgical techniques are utilized to correct dysfunction of the leaflets and subvalvular apparatus; in most cases, surgical repair entails application of multiple repair techniques in each patient. Preclinical studies and early human experience have demonstrated that some of these surgical repair techniques can be performed using percutaneous approaches. Specifically, there has been great progress in the development of novel technology to facilitate percutaneous annuloplasty and percutaneous edge-to-edge repair. The objectives of this report were to (1) discuss the surgical foundations for these percutaneous approaches; (2) review device design and experimental and clinical results of percutaneous valve repair; and (3) address future directions, including the key challenges of patient selection and clinical trial design.

  8. Career Commitment, Competencies, and Citizenship.

    Science.gov (United States)

    Carson, Kerry David; Carson, Paula Phillips

    1998-01-01

    Nursing department employees (n=75) completed the Career Commitment Measure and other measures. Emotional intelligence was positively related to career commitment but not organizational commitment. Both types of commitment were positively related to organizational citizenship. (SK)

  9. Effects of Discipline-based Career Course on Nursing Students' Career Search Self-efficacy, Career Preparation Behavior, and Perceptions of Career Barriers.

    Science.gov (United States)

    Park, Soonjoo

    2015-09-01

    The purpose of this study was to investigate the effectiveness of a discipline-based career course on perceptions of career barriers, career search self-efficacy, and career preparation behavior of nursing students. Differences in career search self-efficacy and career preparation behavior by the students' levels of career barriers were also examined. The study used a modified one-group, pretest-posttest design. The convenience sample consisted of 154 undergraduate nursing students in a university. The discipline-based career course consisted of eight sessions, and was implemented for 2 hours per session over 8 weeks. The data were collected from May to June in 2012 and 2013 using the following instruments: the Korean Career Indecision Inventory, the Career Search Efficacy Scale, and the Career Preparation Behavior Scale. Descriptive statistics, paired t test, and analysis of covariance were used to analyze the data. Upon the completion of the discipline-based career course, students' perceptions of career barriers decreased and career search self-efficacy and career preparation behavior increased. Career search self-efficacy and career preparation behavior increased in students with both low and high levels of career barriers. The difference between the low and high groups was significant for career search self-efficacy but not for career preparation behavior. The discipline-based career course was effective in decreasing perceptions of career barriers and increasing career search self-efficacy and career preparation behavior among nursing students. Copyright © 2015. Published by Elsevier B.V.

  10. Wind Power Career Chat

    Energy Technology Data Exchange (ETDEWEB)

    2011-01-01

    This document will teach students about careers in the wind energy industry. Wind energy, both land-based and offshore, is expected to provide thousands of new jobs in the next several decades. Wind energy companies are growing rapidly to meet America's demand for clean, renewable, and domestic energy. These companies need skilled professionals. Wind power careers will require educated people from a variety of areas. Trained and qualified workers manufacture, construct, operate, and manage wind energy facilities. The nation will also need skilled researchers, scientists, and engineers to plan and develop the next generation of wind energy technologies.

  11. Overconfidence and Career Choice.

    Science.gov (United States)

    Schulz, Jonathan F; Thöni, Christian

    2016-01-01

    People self-assess their relative ability when making career choices. Thus, confidence in their own abilities is likely an important factor for selection into various career paths. In a sample of 711 first-year students we examine whether there are systematic differences in confidence levels across fields of study. We find that our experimental confidence measures significantly vary between fields of study: While students in business related academic disciplines (Political Science, Law, Economics, and Business Administration) exhibit the highest confidence levels, students of Humanities range at the other end of the scale. This may have important implications for subsequent earnings and professions students select themselves in.

  12. Borders of "the boundarlyless career"

    DEFF Research Database (Denmark)

    Boutaiba, Sami Stephan; Sommerlund, Julie

    2007-01-01

    , the methodology can inspire scholars to explore the findings observed in this paper. Practical implications – The idealization of the boundaryless career is problematic, as it poses problems to those concerned with the career. A more flexible ideal of careers would be preferable to researchers and organisational...

  13. Classifying Korean Adolescents' Career Preparedness

    Science.gov (United States)

    Lee, In Heok; Rojewski, Jay W.; Hill, Roger B.

    2013-01-01

    Latent class analysis was used to examine the career preparation of 5,227 11th-grade Korean adolescents taken from the Korean Education Longitudinal Study of 2005 (KELS:2005). Three career preparedness groups were identified, to reflecting Skorikov's ("J Vocat Behav" 70:8-24, 2007) conceptualization of career preparedness: prepared,…

  14. Career-Tech Time Machine

    Science.gov (United States)

    Monberg, Greg; Bannourah, Riyad

    2011-01-01

    In the 1940s, 50s, and 60s, the skills needed to have a successful career were very different than they are today. This case study of the Hammond Area Career Center's Multimedia Broadcast Academy shows how one Rust Belt community has revamped its approach to career and technical education and is preparing students for jobs in the new economy. This…

  15. Borders of "the boundarlyless career"

    DEFF Research Database (Denmark)

    Boutaiba, Sami Stephan; Sommerlund, Julie

    2007-01-01

    Purpose – The paper aims to examine the notion of the boundaryless career, arguing that the notion is problematic, and that simultaneous co-existence of different types of careers makes both “new” and “old” types of careers possible. Design/methodology/approach – The approach is twofold: a theore...

  16. Perceived career development support in workplace career programme

    Directory of Open Access Journals (Sweden)

    Ismail Azman

    2014-01-01

    Full Text Available This study aims to quantify the relationship between the workplace career programme, perceived career development support, and job satisfaction. The survey method was employed to gather self-reported questionnaires from employees who work at a defence-based higher learning institution in Malaysia. The outcomes of SmartPLS path model analysis showed two important findings: first, the relationship between career planning and career management was positively and significantly correlated with job satisfaction. Second, the relationship between perceived career development support was positively and significantly correlated with job satisfaction. This finding confirms that perceived career development support does act as an important mediating variable in the relationship between workplace career programme and job satisfaction in the organizational sample. This study includes a discussion, implications, and a conclusion.

  17. Clifford Geertz: A career

    Directory of Open Access Journals (Sweden)

    Bošković Aleksandar

    2007-01-01

    Full Text Available The paper presents some concepts of the recently deceased American anthropologist Clifford Geertz, putting them into the specific context of his rich and interesting career, influences that he had, as well as some reactions to his ideas. A particular attention is placed upon the concept of culture, as the key concept in the 20th century American anthropology.

  18. Career Adaptability in Childhood

    Science.gov (United States)

    Hartung, Paul J.; Porfeli, Erik J.; Vondracek, Fred W.

    2008-01-01

    Childhood marks the dawn of vocational development, involving developmental tasks, transitions, and change. Children must acquire the rudiments of career adaptability to envision a future, make educational and vocational decisions, explore self and occupations, and problem solve. The authors situate child vocational development within human life…

  19. Playwright meets career coach

    NARCIS (Netherlands)

    Reinekke Lengelle; dr. Frans Meijers

    2015-01-01

    In this chapter we propose that writing dialogues in creative, expressive, and reflective ways can foster more awareness and self-direction among those who aim to start, build, or rescue their careers. In the first section of the chapter we sketch the societal issues for which narrative counselling

  20. Career choice, influence

    African Journals Online (AJOL)

    Information Impact | Journal of Information and Knowledge Management

    Keywords: Career choice, influence, students, academic performance. Introduction ... Sharma (2012) also included that grade, attendance, standard test and .... outgoing. A student's personality must be a self-motivated type”. ..... Mercy Arodovwe Igere is a lecturer at the Department of Library and Information. Science.

  1. Careers in Dance.

    Science.gov (United States)

    Weeks, Sandra

    Trends in the current job market in the field of dance are identified, and aspects, such as personal qualifications, training requirements, income potential, and employment possibilities, are discussed. Employment opportunities in the professional world, the field of education, and the corporate environment are explored. Career opportunities for…

  2. Strengthening Career Human Agency

    Science.gov (United States)

    Chen, Charles P.

    2006-01-01

    Rooted in A. Bandura's (1982, 2001b) social cognitive theory, the notion of human agency has received considerable attention in vocational and career psychology for the last 2 decades, especially with the recent emergence of social constructivist thinking in the field. This article continues in the same direction. In reviewing the notion of human…

  3. Mid-Career Renewal

    Science.gov (United States)

    Leider, Richard J.

    1976-01-01

    Since "life/career renewal issues will be among the most discussed of society's problems in the next five years and one of the hottest problems business and industry will be faced with," the author reviews work ethic history and recommends approaches individuals may take in view of the probable future. (Author/BP)

  4. Manufacturing and Merchandising Careers

    Science.gov (United States)

    Ryan, Peter J.; And Others

    1977-01-01

    Anyone with a flair for business, product development, or promotion might consider a manufacturing or merchandising occupation. The music industry offers many career opportunities for administrators, salespersons, marketing specialists--the record industry offers positions from promotion manager to rack jobber. Describes instrument company…

  5. Expanding career options

    NARCIS (Netherlands)

    Smilde, Rineke

    2009-01-01

    The musical landscape in Europe shows a complex picture. Societal change leads to change in the careers of artists. We see an increasing number of unstable jobs in the music profession. It no longer offers many opportunities for full-time, long-term contract work, but is often more project-based, ca

  6. Career Awareness through Textiles.

    Science.gov (United States)

    Domalski, Beverly

    This collection of art units is intended to be incorporated into the curriculum throughout the career motivation program, kindergarten through grade six. The units use simulated classroom art projects to provide students with exposure to the work done in textile decoration. General information about the textile industry and textile decoration, a…

  7. Career Development Strategies as Moderators between Career Compromise and Career Outcomes in Emerging Adults

    Science.gov (United States)

    Creed, Peter A.; Hughes, Trinette

    2013-01-01

    The authors surveyed 130 first-year university students (80% female; mean age 20.5) and assessed (a) the level of career compromise they reported between their ideal and enrolled university programs, (b) their career-related strategies, (c) their perceptions of employability, and (d) their career-related distress. The authors tested a model that…

  8. Career Orientations and Career Cultures: Individual and Organisational Approaches to Beginning Teachers' Careers

    Science.gov (United States)

    Coldwell, Mike

    2016-01-01

    Despite the very large literature on teacher careers from an individual perspective, there is relatively little that links the perspectives of teachers themselves to how schools as organisations approach careers. The aim of this paper is, first, to outline how teachers' orientations towards careers change across three dimensions, and, second, to…

  9. Career Development Strategies as Moderators between Career Compromise and Career Outcomes in Emerging Adults

    Science.gov (United States)

    Creed, Peter A.; Hughes, Trinette

    2013-01-01

    The authors surveyed 130 first-year university students (80% female; mean age 20.5) and assessed (a) the level of career compromise they reported between their ideal and enrolled university programs, (b) their career-related strategies, (c) their perceptions of employability, and (d) their career-related distress. The authors tested a model that…

  10. Career Orientations and Career Cultures: Individual and Organisational Approaches to Beginning Teachers' Careers

    Science.gov (United States)

    Coldwell, Mike

    2016-01-01

    Despite the very large literature on teacher careers from an individual perspective, there is relatively little that links the perspectives of teachers themselves to how schools as organisations approach careers. The aim of this paper is, first, to outline how teachers' orientations towards careers change across three dimensions, and, second, to…

  11. Borders of the "Boundaryless Career"

    DEFF Research Database (Denmark)

    Sommerlund, Julie; Boutaiba, Sami

    2007-01-01

    , the methodology can inspire scholars to explore the findings observed in this paper. Practical implications - The idealization of the boundaryless career is problematic, as it poses problems to those concerned with the career. A more flexible ideal of careers would be preferable to researchers and organisational...... problems to those concerned with the career. A more flexible ideal of careers would be preferable to researchers and organisational actors alike. Originality/value - The paper gives a practical and empirical input to a debate that has been largely conceptual or generalized....

  12. Modular training for career counsellors

    Directory of Open Access Journals (Sweden)

    Maruša Goršak

    2015-12-01

    Full Text Available Exactly ten years have passed since first attempts were made in Slovenia to establish a comprehensive and formalized educational program for counsellors working in the field of lifelong career guidance. In the past, organizations providing (career guidance services have established their own non-formal employee trainings. A step forward has been made under the framework of the project “National coordination point for lifelong career guidance”, which enabled the implementation of the first joint training for (career guidance counsellors, called Modular training of career counsellors.

  13. Structure in Community College Career-Technical Programs: A Qualitative Analysis. CCRC Working Paper No. 50

    Science.gov (United States)

    Van Noy, Michelle; Weiss, Madeline Joy; Jenkins, Davis; Barnett, Elisabeth A.; Wachen, John

    2012-01-01

    Using data obtained from interviews and program websites at Washington community and technical colleges, the authors of this study examine the structure of community college career-technical programs in allied health, business and marketing, computer and information studies, and mechanics and repair. A framework for structure with four…

  14. Acupuncture plus Three-step Analgesic Ladder Principle for Cancer Pain Relief:Clinical Observation on 24 Cases

    Institute of Scientific and Technical Information of China (English)

    ZHOU Yi; ZHONG Yi; HUANG Qin-feng; HAN Chou-ping

    2007-01-01

    To observe the therapeutic efficacy of acupuncture plus three-step analgesic ladder for cancer pain relief.Method:Thirty-siX cases with cancer pain were randomized into a treatment group and a control group.Twenty-four cases in the treatment group were treated with acupuncture plus three-step analgesic ladder approach and 12 cases in the control group were treated with three-step analgesic ladder approach alone.Result:The total effective rate and marked effect rate of the treatment group were 95.8%and 54.2% respectively,while those of the control group were 83.3%and 25.0%respectively,indicating a significant statistical difference (P<0.05) in terms of the therapeutic efficacy of the two groups and acupuncture plus three-step analgesic ladder approach can further improve the therapeutic efficacy.

  15. H-Bonding Self-assembled Template-directed Synthesis of a Reactive Amide-bridged Ladder Polyvinylsiloxane

    Institute of Scientific and Technical Information of China (English)

    You Zhi WAN; Ying Hua LIU; Ping XIE; Rong Ben ZHANG

    2006-01-01

    A novel, reactive amide-bridged ladder polyvinylsiloxane (abbr. LP) with Mn = 2.4×104was synthesized for the first time by means of aryl amide H-bonding self-assembled template.The regularity of LP was characterized by the XRD, 29Si NMR and DSC methods. XRD analysis demonstrated the ladder width w = 9.09 A and the ladder thickness t = 3.89 A, respectively, which are approximately consistent with the molecular simulation-calculated ones: w'= 10.60 A and t'=3.06 A. 29Si NMR displayed a resonance peak with small half peak width, △1/2 ~ 4 ppm, for the moiety [=Si(Vi)O2/2-]n of LP. Besides, as a collateral evidence, DSC measurement revealed a high glass transition temperature Tg = 225℃, suggesting high stiffness of the ladder main chain of LP.

  16. Optimality in DNA repair.

    Science.gov (United States)

    Richard, Morgiane; Fryett, Matthew; Miller, Samantha; Booth, Ian; Grebogi, Celso; Moura, Alessandro

    2012-01-07

    DNA within cells is subject to damage from various sources. Organisms have evolved a number of mechanisms to repair DNA damage. The activity of repair enzymes carries its own risk, however, because the repair of two nearby lesions may lead to the breakup of DNA and result in cell death. We propose a mathematical theory of the damage and repair process in the important scenario where lesions are caused in bursts. We use this model to show that there is an optimum level of repair enzymes within cells which optimises the cell's response to damage. This optimal level is explained as the best trade-off between fast repair and a low probability of causing double-stranded breaks. We derive our results analytically and test them using stochastic simulations, and compare our predictions with current biological knowledge.

  17. Career satisfaction of surgical specialties.

    Science.gov (United States)

    Deshpande, Satish P; Deshpande, Sagar S

    2011-05-01

    To examine the factors that impact career satisfaction for various surgical specialties. An acute shortage of surgeons is anticipated in the future. Career dissatisfaction can make this already difficult situation worse. It is important to understand and address factors that influence career satisfaction of surgeons to prolong tenure of existing surgeons and understand anticipated needs of future surgeons. The Center for Studying Health System Change 2008 Health Tracking Physician Survey data were used in this study. Regression analysis was done to examine the impact of various practice-related factors, compensation-related factors, practice location, extent of minority patient, and various demographics on career satisfaction of various surgical specialties (n = 762). Among practice related factors, although threat of malpractice had a significant negative impact on career satisfaction, ability to provide quality care to patients and time with patients had a significant positive impact on career satisfaction of surgical specialists. Among compensation related factors, income and financial incentives to expand services had a significant positive impact on career satisfaction. Among practice location factors, those who primarily worked in medical schools were significantly more satisfied with their careers than others. Among minority factors, those treating a large proportion of Hispanic patients were significantly less likely to be satisfied with their careers. Ability to provide quality care, time with patients, income, and financial incentives had a significant positive impact on career satisfaction. Similarly, threat of malpractice and high proportion of Hispanic patients had a negative impact on career satisfaction.

  18. On Ladder Diagrams Compilation and Synthesis to FPGA Implemented Reconfigurable Logic Controller

    Directory of Open Access Journals (Sweden)

    Adam Milik

    2014-01-01

    Full Text Available The paper presents synthesis process of a hardware implemented reconfigurable logic controller from a ladder diagram according to IEC61131-3 requirements. It is focused on the originally developed a high-performance LD processing method. It is able to process a set of diagrams restricted to logic operations in a single clock cycle independently from the number of processed rungs. The paper considers the compilation of the ladder diagram into an intermediate form suitable for logic synthesis process according to developed processing method. The enhanced data flow graph (EDFG has been developed for the intermediate representation of an LD program. The original construction of the EDFG with attributed edges has been described. It allows for efficient representation and processing of logic and arithmetic formulas. The set of compilation algorithms that allow to preserve serial analysis order and to obtain massively parallel processing unit are presented. The overview of a hardware mapping concludes the presented considerations.

  19. From Spin Ladders to the 2-d O(3) Model at Non-Zero Density

    CERN Document Server

    Chandrasekharan, S; Wiese, U J

    2002-01-01

    The numerical simulation of various field theories at non-zero chemical potential suffers from severe complex action problems. In particular, QCD at non-zero quark density can presently not be simulated for that reason. A similar complex action problem arises in the 2-d O(3) model -- a toy model for QCD. Here we construct the 2-d O(3) model at non-zero density via dimensional reduction of an antiferromagnetic quantum spin ladder in a magnetic field. The complex action problem of the 2-d O(3) model manifests itself as a sign problem of the ladder system. This sign problem is solved completely with a meron-cluster algorithm.

  20. Atomic coherence effects in four-wave mixing process of a ladder-type atomic system.

    Science.gov (United States)

    Lee, Yoon-Seok; Moon, Han Seb

    2016-05-16

    We investigate the effects of atomic coherence on four-wave mixing (FWM), with respect to the transition routes between the hyperfine states in the 5S1/2-5P3/2-5D5/2 transition of 87Rb atoms. By comparing the FWM spectra with the electromagnetically induced transparency (EIT) spectra of the hyperfine states, we confirm that the FWM process is significantly influenced by both ladder-type and V-type two-photon coherences. From the observed FWM signal of each hyperfine structure, we clarify the role of two-photon coherence in the FWM process under EIT, double-resonance optical pumping (DROP), and two-photon absorption (TPA) conditions in a ladder-type atomic system, which is dependent on the open degree of the hyperfine states, the laser intensity, and the laser frequency detuning.

  1. Effects of spontaneously induced coherence on absorption of a ladder-type atom

    Institute of Scientific and Technical Information of China (English)

    Ma Hong-Mei; Gong Shang-Qing; Sun Zhen-Rong; Li Ru-Xin; Xu Zhi-Zhan

    2006-01-01

    This paper investigates the effects of spontaneously induced coherence on absorption properties in a nearly equispaced three-level ladder-type system driven by two coherent fields. It find that the absorption properties of this system with the probe field applied on the lower transition can be significantly modified if this coherence is optimized. In the case of small spontaneous decay rate in the upper excited state, it finds that such coherence does not destroy the electromagnetically induced transparency (EIT). Nevertheless, the absorption peak on both sides of zero detuning and the linewidth of absorption line become larger and narrower than those in the case corresponding to the effects of spontaneously induced coherence; while in the case of large decay rate, it finds that, instead of EIT with low resonant absorption, a sharp absorption peak at resonance appears. That is, electromagnetically induced absorption in the nearly equispaced ladder-type system can occur due to such coherent effects.

  2. Trait anxiety and goal difficulty on learning to climb the Bachman ladder.

    Science.gov (United States)

    Neiva, Jaqueline F O; Barros, Joao A C; Meira, Cassio M

    2014-04-01

    This study examined the effects of trait anxiety and goal setting on learning of the Bachman ladder. It was hypothesized that easy goals would increase learning for individuals with high trait anxiety while hard goals would increase learning for individuals with low trait anxiety. 80 high school students (40 boys, 40 girls; M age = 15 yr., SD = 1.0) filled out the Brazilian State-Trait Anxiety Inventory (STAI) for trait anxiety. The experiment was divided into four phases: acquisition, immediate transfer (after 5 min.), delayed transfer, and retention (after 24 hr.). On the transfer phases, the participants started climbing the ladder with the foot opposite of that used in acquisition. Participants were assigned to one of four experimental groups combining high and low anxiety traits and hard and easy goals. Variances were analyzed with repeated measurements on the last factor of all phases. The results showed the performance increased during the acquisition phase and no effects were observed in any phases.

  3. 4-bit digital to analog converter using R-2R ladder and binary weighted resistors

    Science.gov (United States)

    Diosanto, J.; Batac, M. L.; Pereda, K. J.; Caldo, R.

    2017-06-01

    The use of a 4-bit digital-to-analog converter using two methods; Binary Weighted Resistors and R-2R Ladder is designed and presented in this paper. The main components that were used in constructing both circuits were different resistor values, operational amplifier (LM741) and single pole double throw switches. Both circuits were designed using MULTISIM software to be able to test the circuit for its ideal application and FRITZING software for the layout designing and fabrication to the printed circuit board. The implementation of both systems in an actual circuit benefits in determining and comparing the advantages and disadvantages of each. It was realized that the binary weighted circuit is more efficient DAC, having lower percentage error of 0.267% compared to R-2R ladder circuit which has a minimum of percentage error of 4.16%.

  4. The antiferromagnetic cross-coupled spin ladder: Quantum fidelity and tensor networks approach

    Science.gov (United States)

    Chen, Xi-Hao; Cho, Sam Young; Zhou, Huan-Qiang; Batchelor, Murray T.

    2016-05-01

    We investigate the phase diagram of the cross-coupled Heisenberg spin ladder with antiferromagnetic couplings. For this model, the results for the existence of the columnar dimer phase, which was predicted on the basis of weak coupling field theory renormalization group arguments, have been conflicting. The numerical work on this model has been based on various approaches, including exact diagonalization, series expansions and density-matrix renormalization group calculations. Using the recently-developed tensor network states and groundstate fidelity approach for quantum spin ladders, we find no evidence for the existence of the columnar dimer phase. We also provide an argument based on the symmetry of the Hamiltonian, which suggests that the phase diagram for antiferromagnetic couplings consists of a single line separating the rung-singlet and the Haldane phases.

  5. Career anchors and values from different career management perspectives

    Directory of Open Access Journals (Sweden)

    Rodrigo Cunha da Silva

    2016-06-01

    Full Text Available Purpose – To analyze the relationships between career anchors and young Generation Y professionals’ values, from the career concept perspective. Design/methodology/approach – Research concerning the proposed objective was carried out through quantitative research involving 189 Business Administration majors from a Catholic university in São Paulo, Brazil. We used two instruments to identify the career anchors and values of respondents: Schein (1990 and Schwartz (1994, respectively. We used statistical techniques to explore the relationships between career anchors and values. Findings – Among the results, mention should be made to the statistical relationships found between analyzed career anchors and values. It is also important to stress that, although the Lifestyle career anchor was predominantly present in the conglomerate division, this anchor was the predominant characteristic in the differentiation of the smaller group of respondents, the new career group. The General Management Career Anchor, which presents a lower incidence, is the predominant characteristic of the larger group, referring to organizational careers. As well as the Lifestyle career anchor, the Hedonism value was predominant among respondents. Originality/value – The need to consider the following was found: Generation Y presents generational characteristics that drive people management to propose work structures that offer activities to generate learning, pleasure, self-fulfillment and conciliation between work and personal life.

  6. Programación de Controladores Lógicos (PLC) mediante Ladder y Lenguaje de Control Estructurado (SCL) en MATLAB/Programming logic controllers (PLC) using ladder and structured control language (SCL) in MATLAB/Programação de Controladores Lógicos (PLC) mediante Ladder e Linguagem de Controle Estruturado (SCL) em MATLAB

    National Research Council Canada - National Science Library

    Heyder David Páez-Logreira; Ronald Zamora-Musa; José Bohórquez-Pérez

    2015-01-01

    .... In this article, the results LADDER programming language and language are compared with SCL generated by Simulink PLC Coder MATLAB tool taking as a case study the calculating the volume of a tank...

  7. H-bonding template-directed synthesis of a complete m-PDA-bridged ladder polyhydrosiloxane (OLPHS)

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    A highly ordered m-phenylenediimino-bridged ladder polyhydrosiloxane (abbr. OLPHS) with Mn = 1.24 × 104 was synthesized stoichiometric hydrolysis and dehydrochlorination condensation reaction between Si-Cl and Si-OH bonds. The complete ladder structure of OLPHS has been confirmed by the following three data. Two characteristic Bragg's peaks representing the ladder width (w = 0.94 nm) and ladder thickness (t = 0.42 nm) were observed in XRD analysis, which are consistent with those calculated by molecular simulation. The very sharp absorption with a small half-peak width (w1/2 = 0.5 ppm) for [(-HN)HSiO2/2]n moiety of OLPHS in 29Si NMR spectrum indicated presence of the complete ladder structure. As collateral evidence, a higher glass transition temperature (Tg = 105 ℃) is also recorded in the DSC measurement, implying the high stiffness of ladder chain of OLPHS.(C) 2007 Rong Ben Zhang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

  8. Fabrication of nanochannels with ladder nanostructure at the bottom using AFM nanoscratching method

    OpenAIRE

    2014-01-01

    This letter presents a novel atomic force microscopy (AFM)-based nanomanufacturing method combining the tip scanning with the high-precision stage movement to fabricate nanochannels with ladder nanostructure at the bottom by continuous scanning with a fixed scan size. Different structures can be obtained according to the matching relation of the tip feeding velocity and the precision stage moving velocity. This relationship was first studied in detail to achieve nanochannels with different la...

  9. Novel Zn(II) ladder-like coordination polymer constructed from designed ferrocenyl ligand

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Reaction of Zn(NO3)2.6H2O with 3-(4-carboxylphenylamino)-1-ferrocenyl-2-butylen-1-one (HL) and 4,4'-bipyridine (4,4'-bipy) in methanol solution resulted in a novel ladder-like coordination polymer {[Zn2L2(μ2-L)2(4,4'-bipy)2].MeOH}n (1). Its crystal structure, thermal and electrochemical properties axe presented.

  10. Specific heat spectra of non-interacting fermions in a quasiperiodic ladder sequence

    Science.gov (United States)

    Moreira, D. A.; Albuquerque, E. L.; Anselmo, D. H. A. L.

    2008-07-01

    We compute the specific heat spectra of non-interacting fermions whose energy spectrum was obtained from a quasiperiodic ladder sequence (Fibonacci and Rudin-Shapiro type), mimicking a DNA molecule model. The specific heat is calculated from their underlying multi-fractal energy spectrum, considering several values of energy densities. Comparisons are made with a real DNA sequence, namely the human chromosome 22 (Ch22).

  11. Telecast of Astronaut Neil Armstrong descending ladder to surface of the moon

    Science.gov (United States)

    1969-01-01

    Astronaut Neil A. Armstrong, Apollo 11 commander, descends the ladder of the Apollo 11 Lunar Module prior to making the first step by man on the moon. This view is a black and white reproduction taken from a telecast by the Apollo 11 lunar surface camera during extravehicular activity. The black bar running through the center of the picture is an anamoly in the television ground data system at the Goldstone Tracking Station.

  12. Variation of the absorption and dispersion profiles in a ladder-four-level system

    Institute of Scientific and Technical Information of China (English)

    Li Yong-Fang; Sun Jian-Feng; Niu Yue-Ping

    2004-01-01

    A theoretical research on the variation of the absorption and dispersion profiles and population distribution of each level in a ladder-four-level system driven by two coherent fields has been made. Whether the variation occurs or not depends on the effect of quantum interference, the detuning of the upper coherent field and the separation of the two intermediate levels. A dressed-state analysis is introduced to explain the numerical results.

  13. Specific heat spectra of non-interacting fermions in a quasiperiodic ladder sequence

    Energy Technology Data Exchange (ETDEWEB)

    Moreira, D.A. [Departamento de Fisica, Universidade Federal do Rio Grande do Norte, 59072-970 Natal-RN (Brazil); Albuquerque, E.L. [Departamento de Fisica, Universidade Federal do Rio Grande do Norte, 59072-970 Natal-RN (Brazil)], E-mail: eudenilson@dfte.ufrn.br; Anselmo, D.H.A.L. [Departamento de Fisica, Universidade Federal do Rio Grande do Norte, 59072-970 Natal-RN (Brazil)

    2008-07-28

    We compute the specific heat spectra of non-interacting fermions whose energy spectrum was obtained from a quasiperiodic ladder sequence (Fibonacci and Rudin-Shapiro type), mimicking a DNA molecule model. The specific heat is calculated from their underlying multi-fractal energy spectrum, considering several values of energy densities. Comparisons are made with a real DNA sequence, namely the human chromosome 22 (Ch22)

  14. The genus polynomials of cross-ladder digraphs in orientable surfaces

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Some results about the genus distributions of graphs are known,but little is known about those of digraphs.In this paper,the method of joint trees initiated by Liu is generalized to compute the embedding genus distributions of digraphs in orientable surfaces.The genus polynomials for a new kind of 4-regular digraphs called the cross-ladders in orientable surfaces are obtained.These results are close to solving the third problem given by Bonnington et al.

  15. Repairs of composite structures

    Science.gov (United States)

    Roh, Hee Seok

    Repair on damaged composite panels was conducted. To better understand adhesively bonded repair, the study investigates the effect of design parameters on the joint strength. The design parameters include bondline length, thickness of adherend and type of adhesive. Adhesives considered in this study were tested to measure their tensile material properties. Three types of adhesively bonded joints, single strap, double strap, and single lap joint were considered under changing bondline lengths, thickness of adherend and type of adhesive. Based on lessons learned from bonded joints, a one-sided patch repair method for composite structures was conducted. The composite patch was bonded to the damaged panel by either film adhesive FM-73M or paste adhesive EA-9394 and the residual strengths of the repaired specimens were compared under varying patch sizes. A new repair method using attachments has been suggested to enhance the residual strength. Results obtained through experiments were analyzed using finite element analysis to provide a better repair design and explain the experimental results. It was observed that the residual strength of the repaired specimen was affected by patch length. Method for rapid repairs of damaged composite structures was investigated. The damage was represented by a circular hole in a composite laminated plate. Pre-cured composite patches were bonded with a quick-curing commercial adhesive near (rather than over) the hole. Tensile tests were conducted on specimens repaired with various patch geometries. The test results showed that, among the methods investigated, the best repair method restored over 90% of the original strength of an undamaged panel. The interfacial stresses in the adhesive zone for different patches were calculated in order to understand the efficiencies of the designs of these patch repairs. It was found that the composite patch that yielded the best strength had the lowest interfacial peel stress between the patch and

  16. Resonant states and wavepacket super-diffusion in intra-chain correlated ladders with diluted disorder.

    Science.gov (United States)

    de Moura, F A B F; Leão, F F S; Lyra, M L

    2011-04-06

    In this work, we study a tight-binding Hamiltonian model system of a binary correlated ladder with diluted disorder. We introduce intra-chain correlations between the on-site potentials by imposing that ϵ(i, s) = - ϵ(i, - s) where s = ± 1 indexes the two ladder chains. Further, we consider each ladder chain as composed of inter-penetrating ordered and random sub-chains. We show that the presence of a random on-site distribution in one of the inter-penetrating chains leads to Anderson localization except at a specific symmetric pair of energy eigenmodes. Further, by integrating the time-dependent Schroedinger equation, we follow the time-evolution of an initially localized one-electron wavepacket. We report that the remaining delocalized resonant modes are responsible for a super-diffusive spread of the wavepacket dispersion while the wavepacket participation function remains finite. A scaling analysis of the wavepacket distribution shows that it obeys a universal scaling form with the development of a power-law tail followed by a super-diffusively evolving cutoff. We obtain three exponents characterizing this super-diffusive dynamics and show that they satisfy a simple scaling relation.

  17. Topic Order in Introductory Physics and its Impact on the STEM Curricular Ladder

    Directory of Open Access Journals (Sweden)

    Teresa L Larkin

    2017-02-01

    Full Text Available Introductory physics courses are an important rung on the curricular ladder in STEM. These courses help to strengthen students critical thinking and problem solving skills while simultaneously introducing them to many topics they will explore in more detail in later courses in physics and engineering. For these reasons, introductory physics is a required element on the curricular ladder. Most often, introductory physics is offered as a two-semester sequence with basic mechanics being taught in the first semester and electricity and magnetism in the second. In fact, this curricular sequence has not been altered in decades. Is there a reason for this? There are many other enduring questions that arise pertaining to these foundation courses in physics. These questions include: Does taking the introductory course sequence “out of order” have an impact on student learning in physics? What topics should be taught? When should these topics be taught? What topics could be left out? The list of questions is essentially endless. This paper will address some of these questions in part, through a brief discussion on student learning in a second-semester algebra-based physics course. Connections will also be made to the broader curricular ladder in STEM. To this end, an illustration that makes connections to an engineering statics course will be presented. This discussion will conclude by presenting some broader implications for the larger STEM communities.

  18. Chiral Mott insulators, Meissner effect, and Laughlin states in quantum ladders

    Science.gov (United States)

    Petrescu, Alexandru; Le Hur, Karyn

    2015-02-01

    We introduce generic bosonic models exemplifying that chiral Meissner currents can persist in insulating phases of matter. We first consider interacting bosons on a two-leg ladder. The total density sector can be gapped in a bosonic Mott insulator at odd-integer filling, while the relative density sector remains superfluid due to interchain hopping. Coupling the relative density to gauge fields yields a pseudospin Meissner effect. We show that the same phase arises if the bosons are replaced by spinful fermions confined in Cooper pairs, and find a dual fermionic Mott insulator with spinon currents. We prove that, by tuning the mean density, the Mott insulator with Meissner currents turns into a low-dimensional bosonic ν =1/2 Laughlin state for strong enough repulsive interactions across the ladder rungs. We finally discuss extensions to multileg ladders and bilayers in which spinon superfluids with Meissner currents become possible. We propose two experimental realizations, one with ultracold atoms in the setup of Atala et al. [Nat. Phys. 10, 588 (2014), 10.1038/nphys2998] and another with Josephson junction arrays. We also address a Bose-Fermi mixture subject to a magnetic field in connection with the pseudogap phase of high-Tc cuprates.

  19. Structural characterization of the cyclic cystine ladder motif of θ-defensins.

    Science.gov (United States)

    Conibear, Anne C; Rosengren, K Johan; Harvey, Peta J; Craik, David J

    2012-12-04

    The θ-defensins are, to date, the only known ribosomally synthesized cyclic peptides in mammals, and they have promising antimicrobial bioactivities. The characteristic structural motif of the θ-defensins is the cyclic cystine ladder, comprising a cyclic peptide backbone and three parallel disulfide bonds. In contrast to the cyclic cystine knot, which characterizes the plant cyclotides, the cyclic cystine ladder has not been as well described as a structural motif. Here we report the solution structures and nuclear magnetic resonance relaxation properties in aqueous solution of three representative θ-defensins from different species. Our data suggest that the θ-defensins are more rigid and structurally defined than previously thought. In addition, all three θ-defensins were found to self-associate in aqueous solution in a concentration-dependent and reversible manner, a property that might have a role in their mechanism of action. The structural definition of the θ-defensins and the cyclic cystine ladder will help to guide exploitation of these molecules as structural frameworks for the design of peptide drugs.

  20. Statistical signatures of states orthogonal to the Fock-state ladder of composite bosons

    Science.gov (United States)

    Bouvrie, P. Alexander; Tichy, Malte C.; Mølmer, Klaus

    2016-11-01

    The theory of composite bosons (cobosons) made of two fermions [C. K. Law, Phys. Rev. A 71, 034306 (2005), 10.1103/PhysRevA.71.034306; M. C. Tichy et al., Phys. Rev. Lett. 109, 260403 (2012), 10.1103/PhysRevLett.109.260403] converges to ordinary structureless bosons in the limit of infinitely strong entanglement between the fermionic constituents. For finite entanglement, the annihilation operator c ̂ of a composite boson couples the N -coboson Fock state not only to the (N -1 ) -coboson state—as for ordinary bosons—but also to a component which is orthogonal to the Fock-state ladder of cobosons. Coupling with states orthogonal to the Fock ladder arises also in dynamical processes of cobosons. Here, with a Gedanken experiment involving both mode splitting and collective Hong-Ou-Mandel-like interference, we derive the characteristic physical signature of the states orthogonal to the Fock ladder generated in the splitting process. This allows us to extract the microscopic properties of many-fermion wave functions from the collective coboson behavior. We show that consecutive beam-splitter dynamics increases the deviation from the ideal bosonic behavior pattern, which opens up a rigorous approach to the falsification of coboson theory.

  1. The Pan-STARRS 1 Photometric Reference Ladder, Release 12.0

    CERN Document Server

    Magnier, E A; Finkbeiner, D; Juric, M; Tonry, J L; Burgett, W S; Chambers, K C; Flewelling, H A; Kaiser, N; Kudritzki, R -P; Morgan, J S; Price, P A; Sweeney, W E; Stubbs, C W

    2013-01-01

    As of 2012 Jan 21, the Pan-STARRS 1 3\\pi Survey has observed the 3/4 of the sky visible from Hawaii with a minimum of 2 and mean of 7.6 observations in 5 filters, g_p1, r_p1, i_p1, z_p1, y_p1. Now at the end of the second year of the mission, we are in a position to make an initial public release of a portion of this unprecedented dataset. This article describes the PS1 Photometric Ladder, Release 12.01 This is the first of a series of data releases to be generated as the survey coverage increases and the data analysis improves. The Photometric Ladder has rungs every hour in RA and at 4 intervals in declination. We will release updates with increased area coverage (more rungs) from the latest dataset until the PS1 survey and the final re-reduction are completed. The currently released catalog presents photometry of \\approx 1000 objects per square degree in the rungs of the ladder. Saturation occurs at g_p1, r_p1, i_p1 \\approx 13.5; z_p1 \\approx 13.0; and y_p1 \\approx 12.0. Photometry is provided for stars dow...

  2. The Roles of Negative Career Thinking and Career Problem-Solving Self-Efficacy in Career Exploratory Behavior

    Science.gov (United States)

    Bullock-Yowell, Emily; Katz, Sheba P.; Reardon, Robert C.; Peterson, Gary W.

    2012-01-01

    The respective roles of social cognitive career theory and cognitive information processing in career exploratory behavior were analyzed. A verified path model shows cognitive information processing theory's negative career thoughts inversely predict social cognitive career theory's career problem-solving self-efficacy, which predicts career…

  3. Cannabis careers revisited

    DEFF Research Database (Denmark)

    Järvinen, Margaretha; Ravn, Signe

    2014-01-01

    A considerable part of today's sociological research on recreational drug use is (explicitly or implicitly) inspired by Howard Becker's classical model of deviant careers. The aim of the present paper is to directly apply Becker's theory to empirical data on present-day cannabis use and to suggest...... in treatment for cannabis problems in Copenhagen, Denmark. We suggest a revision of Becker's career model in relation to four aspects: initiation of cannabis use, differentiation between socially integrated and individualised, disintegrated use, social control from non-users, and the users' moral stance...... on cannabis. A central point of the paper is that social interaction may both motivate cannabis use, as Becker proposed, and serve as a protective factor against extensive, problematic use....

  4. Workshop on DNA repair.

    NARCIS (Netherlands)

    A.R. Lehmann (Alan); J.H.J. Hoeijmakers (Jan); A.A. van Zeeland (Albert); C.M.P. Backendorf (Claude); B.A. Bridges; A. Collins; R.P.D. Fuchs; G.P. Margison; R. Montesano; E. Moustacchi; A.T. Natarajan; M. Radman; A. Sarasin; E. Seeberg; C.A. Smith; M. Stefanini (Miria); L.H. Thompson; G.P. van der Schans; C.A. Weber (Christine); M.Z. Zdzienika

    1992-01-01

    textabstractA workshop on DNA repair with emphasis on eukaryotic systems was held, under the auspices of the EC Concerted Action on DNA Repair and Cancer, at Noordwijkerhout (The Netherlands) 14-19 April 1991. The local organization of the meeting was done under the auspices of the Medical Genetic C

  5. Laparoscopic lumbar hernia repair.

    Science.gov (United States)

    Madan, Atul K; Ternovits, Craig A; Speck, Karen E; Pritchard, F Elizabeth; Tichansky, David S

    2006-04-01

    Lumbar hernias are rare clinical entities that often pose a challenge for repair. Because of the surrounding anatomy, adequate surgical herniorraphy is often difficult. Minimally invasive surgery has become an option for these hernias. Herein, we describe two patients with lumbar hernias (one with a recurrent traumatic hernia and one with an incisional hernia). Both of these hernias were successfully repaired laparoscopically.

  6. CAREERS IN INFORMATION SCIENCE,

    Science.gov (United States)

    Information Science . Sets forth that Information Science is concerned with the properties, behavior, and flow of information...Describes how it is used, both by individuals and in large systems. Discusses the opportunities in Information Science and outlines three relatively...6or participation in these career areas. Concludes that Information Science is a new but rapidly growing field pushing the frontiers of human knowledge and, thus, 3ontributing to human wellbeing and progress.

  7. A Career At Home

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    Dai Ping, whose son is a first grader in a primary school in Beijing, has noticed a growing number of higher educated stay-at-home mothers around her community. Currently, 11 children in her son's 44-student class have stay-at-home mothers. Dai, a biology major, once worked at a research institute in the United States in the prime of her career before choosing to raise her son at home.

  8. First-order commensurate-incommensurate magnetic phase transition in the coupled FM spin-1/2 two-leg ladders

    CERN Document Server

    Jahangiri, J; Mahdavifar, S; Shayesteh, S Farjami

    2015-01-01

    We consider the spin-1/2 two-leg ladders with ferromagnetic (FM) interactions along legs and rungs. Using the stochastic series expansion QMC method, we study the low-temperature magnetic behavior of the system. An isolated spin-1/2 FM two-leg ladder is in the gapped saturated FM phase at zero temperature. As soon as the spin-1/2 FM two-leg ladders are connected with antiferromagnetic (AFM) inter-ladder interaction, a first-order commensurate-incommensurate quantum phase transition occurs in the ground state magnetic phase diagram. In fact a jump in the magnetization curve is observed. We found that, coupled spin-1/2 FM two-leg ladders are in a nonmagnetic phase at zero temperature. Applying a magnetic field, the ground state of coupled spin-1/2 FM two-leg ladders remains in the nonmagnetic phase up to a quantum saturate critical field.

  9. DNA repair protocols

    DEFF Research Database (Denmark)

    Bjergbæk, Lotte

    In its 3rd edition, this Methods in Molecular Biology(TM) book covers the eukaryotic response to genomic insult including advanced protocols and standard techniques in the field of DNA repair. Offers expert guidance for DNA repair, recombination, and replication. Current knowledge of the mechanisms...... that regulate DNA repair has grown significantly over the past years with technology advances such as RNA interference, advanced proteomics and microscopy as well as high throughput screens. The third edition of DNA Repair Protocols covers various aspects of the eukaryotic response to genomic insult including...... recent advanced protocols as well as standard techniques used in the field of DNA repair. Both mammalian and non-mammalian model organisms are covered in the book, and many of the techniques can be applied with only minor modifications to other systems than the one described. Written in the highly...

  10. INTERNAL REPAIR OF PIPELINES

    Energy Technology Data Exchange (ETDEWEB)

    Bill Bruce; Nancy Porter; George Ritter; Matt Boring; Mark Lozev; Ian Harris; Bill Mohr; Dennis Harwig; Robin Gordon; Chris Neary; Mike Sullivan

    2005-07-20

    The two broad categories of fiber-reinforced composite liner repair and deposited weld metal repair technologies were reviewed and evaluated for potential application for internal repair of gas transmission pipelines. Both are used to some extent for other applications and could be further developed for internal, local, structural repair of gas transmission pipelines. Principal conclusions from a survey of natural gas transmission industry pipeline operators can be summarized in terms of the following performance requirements for internal repair: (1) Use of internal repair is most attractive for river crossings, under other bodies of water, in difficult soil conditions, under highways, under congested intersections, and under railway crossings. (2) Internal pipe repair offers a strong potential advantage to the high cost of horizontal direct drilling when a new bore must be created to solve a leak or other problem. (3) Typical travel distances can be divided into three distinct groups: up to 305 m (1,000 ft.); between 305 m and 610 m (1,000 ft. and 2,000 ft.); and beyond 914 m (3,000 ft.). All three groups require pig-based systems. A despooled umbilical system would suffice for the first two groups which represents 81% of survey respondents. The third group would require an onboard self-contained power unit for propulsion and welding/liner repair energy needs. (4) The most common size range for 80% to 90% of operators surveyed is 508 mm (20 in.) to 762 mm (30 in.), with 95% using 558.8 mm (22 in.) pipe. Evaluation trials were conducted on pipe sections with simulated corrosion damage repaired with glass fiber-reinforced composite liners, carbon fiber-reinforced composite liners, and weld deposition. Additional un-repaired pipe sections were evaluated in the virgin condition and with simulated damage. Hydrostatic failure pressures for pipe sections repaired with glass fiber-reinforced composite liner were only marginally greater than that of pipe sections without

  11. Expanding the Focus of Career Assessment.

    Science.gov (United States)

    Lock, Jared D.; Hogan, Robert

    2000-01-01

    Issues affecting career assessment include change in the focus and definition of career, emphasis on quality of work life, expansion of career paths, increased amount of career information available on the Internet, and questionable quality of online assessment. An expanded model of career assessment now includes technical fit, personal fit,…

  12. Banking, Technology Workers and Their Career Development.

    Science.gov (United States)

    Armstrong, Lesley; West, Jim

    2001-01-01

    An Australian bank developed a four-stage career development strategy for information technology workers: (1) career coaching sessions with executives; (2) career coaching seminars for line managers and team leaders; (3) staff career planning workshops; and (4) online career development support. The program resulted in increased satisfaction,…

  13. Section 1. Career Transition for Attorneys.

    Science.gov (United States)

    Byers, Mark; And Others

    1996-01-01

    This section on career transition for attorneys discusses career choice and satisfaction; lawyers as outplacement clients; lawyers' career concerns; Myers-Briggs type preference of lawyers and career counselors; career assessment tools and resources; lawyers and contract work; and helping lawyers change their jobs without changing employers. (JOW)

  14. Factors Influencing High School Students' Career Aspirations

    Science.gov (United States)

    Tang, Mei; Pan, Wei; Newmeyer, Mark D.

    2008-01-01

    This article explores the factors influencing high school students' career aspirations with a study analyzing 141 high school students. The Social Cognitive Career Development Model was utilized to examine the interactive relationships among learning experiences, career self-efficacy, outcome expectations, career interests, and career choices. The…

  15. Career Readiness: Has Its Time Finally Come?

    Science.gov (United States)

    DeWitt, Stephen

    2012-01-01

    In 2010, the Association for Career and Technical Education (ACTE) released a "What Is Career Ready?" definition. As the career-readiness definition explains, there is much overlap between "college readiness" and "career readiness," but academic preparedness for college alone is not enough to be truly career-ready.…

  16. Section 1. Career Transition for Attorneys.

    Science.gov (United States)

    Byers, Mark; And Others

    1996-01-01

    This section on career transition for attorneys discusses career choice and satisfaction; lawyers as outplacement clients; lawyers' career concerns; Myers-Briggs type preference of lawyers and career counselors; career assessment tools and resources; lawyers and contract work; and helping lawyers change their jobs without changing employers. (JOW)

  17. Career Counselling Development: A Case Study of an Innovative Career Counselling Tool

    Science.gov (United States)

    Papakota, Aikaterini

    2016-01-01

    Promoting the use of new technologies in the career counselling process, the Career Services Office of the Aristotle University of Thessaloniki has developed an easy-to-use career counselling guide containing multimedia applications. The purpose of this career guide, called "Career Counseling@Career Office of Aristotle University of…

  18. The Influence of Teachers' Career Guidance Profiles on Students' Career Competencies

    Science.gov (United States)

    Mittendorff, Kariene; Beijaard, Douwe; den Brok, Perry; Koopman, Maaike

    2012-01-01

    In this article, we examine the relationship between different career guidance styles of vocational education teachers and vocational education students' career competencies (i.e. career reflection, career exploration and networking). Questionnaires on students' perceptions of the career guidance of their teachers during career conversations, and…

  19. 5 CFR 317.304 - Conversion of career and career-type appointees.

    Science.gov (United States)

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Conversion of career and career-type... Conversion of career and career-type appointees. (a) Coverage. This section covers employees serving under: (1) A career or career-conditional appointment; or (2) A similar type of appointment...

  20. The Influence of Teachers' Career Guidance Profiles on Students' Career Competencies

    Science.gov (United States)

    Mittendorff, Kariene; Beijaard, Douwe; den Brok, Perry; Koopman, Maaike

    2012-01-01

    In this article, we examine the relationship between different career guidance styles of vocational education teachers and vocational education students' career competencies (i.e. career reflection, career exploration and networking). Questionnaires on students' perceptions of the career guidance of their teachers during career conversations, and…

  1. INTERNAL REPAIR OF PIPELINES

    Energy Technology Data Exchange (ETDEWEB)

    Robin Gordon; Bill Bruce; Ian Harris; Dennis Harwig; George Ritter; Bill Mohr; Matt Boring; Nancy Porter; Mike Sullivan; Chris Neary

    2004-12-31

    The two broad categories of fiber-reinforced composite liner repair and deposited weld metal repair technologies were reviewed and evaluated for potential application for internal repair of gas transmission pipelines. Both are used to some extent for other applications and could be further developed for internal, local, structural repair of gas transmission pipelines. Principal conclusions from a survey of natural gas transmission industry pipeline operators can be summarized in terms of the following performance requirements for internal repair: (1) Use of internal repair is most attractive for river crossings, under other bodies of water, in difficult soil conditions, under highways, under congested intersections, and under railway crossings. (2) Internal pipe repair offers a strong potential advantage to the high cost of horizontal direct drilling when a new bore must be created to solve a leak or other problem. (3) Typical travel distances can be divided into three distinct groups: up to 305 m (1,000 ft.); between 305 m and 610 m (1,000 ft. and 2,000 ft.); and beyond 914 m (3,000 ft.). All three groups require pig-based systems. A despooled umbilical system would suffice for the first two groups which represents 81% of survey respondents. The third group would require an onboard self-contained power unit for propulsion and welding/liner repair energy needs. (4) The most common size range for 80% to 90% of operators surveyed is 508 mm (20 in.) to 762 mm (30 in.), with 95% using 558.8 mm (22 in.) pipe. Evaluation trials were conducted on pipe sections with simulated corrosion damage repaired with glass fiber-reinforced composite liners, carbon fiber-reinforced composite liners, and weld deposition. Additional un-repaired pipe sections were evaluated in the virgin condition and with simulated damage. Hydrostatic failure pressures for pipe sections repaired with glass fiber-reinforced composite liner were only marginally greater than that of pipe sections without

  2. PLANNING CAREERS IN PUBLIC INSTITUTIONS

    Directory of Open Access Journals (Sweden)

    CÎRNU DORU

    2015-03-01

    Full Text Available Planning careers, in any organization, but especially in the public ones, is a process of great importance. Today, in modern society, there is virtually no person who does not need a public service provided by trained staff, helpful, kind and involved. By judiciously prepared career plans, public organizations develop their employees. As a result, the administrative career planning is currently one issue that do not admit any delay.

  3. Literary Careers: Breaks and Stalls

    OpenAIRE

    Crozier, W. Ray

    2001-01-01

    In his article, "Literary Careers: Breaks and Stalls," W. Ray Crozier argues that biographical evidence points to considerable individual variation in writers' output over the life span even when allowance is made for longevity and length of writing career. This issue has been neglected by psychological accounts of creativity. Crozier outlines a theoretical framework for understanding variation in terms of an "artistic career." This is conceptualised as a sequence of projects, the success of ...

  4. CAREER GUIDANCE EXPERIENCE ABROAD

    Directory of Open Access Journals (Sweden)

    Sergey N. Tolstoguzov

    2015-01-01

    Full Text Available The aim of this paper is to describe the experience of careeroriented activities carried out with students of schools in developed and developing countries. Career Guidance in Russia, despite the vast experience of its implementation, is experiencing serious difficulties. In this regard, it is important to take into account the international experience career-oriented activities, such as in the developed countries of North America and the European Union as well as in several Asian countries with rapidly growing economies and a large demographic potential, taking into account the best variants for the Russian education system. Methods. The experience of career-oriented work undertaken with pupils of the USA, Canada, Israel, France, UK, Germany, Denmark, Sweden, Japan, Singapore, China and India is shown on the basis of the comparative analysis of different publications and information sources. The author has made an attempt to generalize the principles of psycho-pedagogical and administrative assistance in professional self-determination of senior pupils abroad. Scientific novelty. The approaches to career-oriented activities in countries with different levels of economic development are compared for the first time. Some principles are revealed. Firstly, the higher the income level per capita in the country, the greater attention is given to vocational guidance. The politics in the developed countries is based on interests of the individual: children’s acquaintance with the world of professions begins already at younger school and the moment of definitive selfdetermination is postponed till the end of their senior stage of education; the possibility of direction change of professional preparation in case of detection of discrepancy of qualities of the pupil to originally selected profile is provided. Career-oriented activity in developing countries, on the contrary, is rigidly coordinated to requirements of economy and a labour market

  5. D0 Silicon Upgrade: Thermally Induced Stresses in the Components of a D0 Ladder in the Silicon Tracker

    Energy Technology Data Exchange (ETDEWEB)

    Ratzmann, Paul M.; /Fermilab

    1996-07-02

    During the operation of the silicon tracker, the ladders will be in direct thermal contact with a cooling channel. The expected operating temperature of the cooling channel is 0 C, maintained by a cooling fluid whose bulk temperature is below 0 C. The assembly temperature is assumed to be 22 C. Due to the mis-match of material expansion coefficients, thermal stresses will be induced in the epoxy, beryllium, and silicon of the ladders. Calculations are presented here as well as some thermal cycling results on test samples. Shown in Figures 1 and 2 are perspective views of the top and bottom of a 3 chip ladder. The silicon temperature within the ladders will not be uniform due to the relative location of the heat dissipating components and the cooling channel. As an example the following plot demonstrates the expected temperature distribution in the 3 chip single sided ladder during operation. Under expected operating conditions of 0.75 W hybrid component power dissipation and 0.5 W per SVX II chip, the temperature profile is shown for two situations of how the ladder is constructed. The cooling channel corresponds roughly to locations on the silicon between 32 and 42 mm. The silicon in this region is sandwiched between two plates of beryllium and is about 4 C. For a construction temperature of 22 C the beryllium/silicon/beryllium assembly will see a 18 C change in temperature. To be conservative a 20 C temperature change will be assumed (some larger temperature extremes will be considered) within the ladder.

  6. Career guidance on the move

    DEFF Research Database (Denmark)

    Thomsen, Rie

    2013-01-01

    This article is about how the notion of place can be used in an analysis of career guidance practices and their development. It is about how a focus on the context of career guidance can develop an awareness of the place where guidance is practiced and support the development of career guidance...... in new places. In this article I introduce an analytical perspective on place; I give the example of the guidance café a practice development that took place into serious consideration because it was an attempt to develop career guidance practice through relocating it....

  7. Endogenous DNA Damage and Repair Enzymes-A short summary of the scientific achievements of Tomas Lindahl, Nobel Laureate in Chemistry 2015

    Institute of Scientific and Technical Information of China (English)

    Arne Klungland; Yun-Gui Yang

    2016-01-01

    Tomas Lindahl completed his medical studies at Karolinska Institute in 1970. Yet, his work has always been dedicated to unraveling fundamental mechanisms of DNA decay and DNA repair. His research is characterized with groundbreaking discoveries on the instability of our genome, the identification of novel DNA repair activities, the characterization of DNA repair pathways, and the association to diseases, throughout his 40 years of scientific career.

  8. Convergent validation study of the Contemplation Ladder for application via telephone in tobacco users Estudo da validação convergente da Escala de Contemplação Ladder aplicada por telefone em tabagistas

    Directory of Open Access Journals (Sweden)

    Mauro Barbosa Terra

    2009-01-01

    Full Text Available OBJECTIVE: This work was designed to validate the Portuguese version of the Contemplation Ladder, whose purpose is to assess the motivational phase to quit smoking among tobacco users using a telephone service. METHOD: A cross-sectional study was conducted in a nationwide drug use information hotline. In order to assess the convergent validation, the correlation between the Contemplation Ladder and the URICA Scale was calculated, which was previously validated. RESULTS: The study included 271 tobacco users. Statistically significant correlations were found between the Contemplation Ladder scores and the scores of the URICA precontemplation (r=-0.16; pOBJETIVO: Este estudo teve como objetivo validar a versão em português da Escala de Contemplação Ladder, que visa verificar o estágio motivacional para parar de fumar em tabagistas, em um serviço de atendimento telefônico. MÉTODO: Um estudo transversal foi conduzido em um serviço de âmbito nacional de informação sobre uso de drogas por telefone. Para avaliação da validação convergente foi calculada a correlação entre a Escala de Contemplação Ladder e a Escala URICA, a qual já foi validada anteriormente. RESULTADOS: O estudo incluiu 271 tabagistas. Foram encontradas correlações estatisticamente significativas entre os escores da Escala de Contemplação Ladder e os escores das subescalas de pré-contemplação (r=-0,16; p<0,01, ação (r=0,15; p<0,01 e manutenção (r=0,18; p<0,01 da URICA. A correlação entre o escore composto da Escala URICA e a Escala de Contemplação Ladder também foi significativa (r=0,31; p<0,01. CONCLUSÃO: Os resultados do nosso estudo sugerem que a Escala de Contemplação Ladder pode ser uma alternativa para a Escala URICA (cuja aplicação dura no máximo 20 minutos, sem se impor uma carga maior de perguntas ao entrevistado. O estudo mostrou evidências de validade convergente da Escala de Contemplação Ladder, quando aplicada por telefone, em

  9. INTERNAL REPAIR OF PIPELINES

    Energy Technology Data Exchange (ETDEWEB)

    Robin Gordon; Bill Bruce; Ian Harris; Dennis Harwig; George Ritter; Bill Mohr; Matt Boring; Nancy Porter; Mike Sullivan; Chris Neary

    2004-08-17

    The two broad categories of fiber-reinforced composite liner repair and deposited weld metal repair technologies were reviewed and evaluated for potential application for internal repair of gas transmission pipelines. Both are used to some extent for other applications and could be further developed for internal, local, structural repair of gas transmission pipelines. Principal conclusions from a survey of natural gas transmission industry pipeline operators can be summarized in terms of the following performance requirements for internal repair: (1) Use of internal repair is most attractive for river crossings, under other bodies of water, in difficult soil conditions, under highways, under congested intersections, and under railway. (2) Internal pipe repair offers a strong potential advantage to the high cost of horizontal direct drilling when a new bore must be created to solve a leak or other problem. (3) Typical travel distances can be divided into three distinct groups: up to 305 m (1,000 ft.); between 305 m and 610 m (1,000 ft. and 2,000 ft.); and beyond 914 m (3,000 ft.). All three groups require pig-based systems. A despooled umbilical system would suffice for the first two groups which represents 81% of survey respondents. The third group would require an onboard self-contained power unit for propulsion and welding/liner repair energy needs. (4) The most common size range for 80% to 90% of operators surveyed is 508 mm (20 in.) to 762 mm (30 in.), with 95% using 558.8 mm (22 in.) pipe. Evaluation trials were conducted on pipe sections with simulated corrosion damage repaired with glass fiber-reinforced composite liners, carbon fiber-reinforced composite liners, and weld deposition. Additional un-repaired pipe sections were evaluated in the virgin condition and with simulated damage. Hydrostatic failure pressures for pipe sections repaired with glass fiber-reinforced composite liner were only marginally greater than that of pipe sections without liners

  10. Salvage hypospadias repairs

    Directory of Open Access Journals (Sweden)

    Sripathi V

    2008-01-01

    Full Text Available Aim: Review of our experience and to develop an algorithm for salvage procedures in the management of hypospadias cripples and treatment of urethral strictures following hypospadias repair. Methods: This is a retrospective review of hypospadias surgeries over a 41-month period. Out of a total 168 surgeries, 20 were salvage/re-operative repairs. In three children a Duplay repair was feasible, while in four others a variety of single-stage repairs could be done. The repair was staged in seven children - buccal mucosal grafts (BMGs in five, buccal mucosal tube in one, and skin graft in one. Five children with dense strictures were managed by dorsal BMG inlay grafting in one, vascularized tunical onlay grafting on the ventrum in one, and a free tunical patch in one. Three children were treated by internal urethrotomy and stenting for four weeks with a poor outcome. Results: The age of children ranged from 1.5-15 years (mean 4.5. Follow-up ranged from 3 months to 3.5 years. Excellent results were obtained in 10 children (50% with a well-surfaced erect penis and a slit-like meatus. Glans closure could not be achieved and meatus was coronal in three. Two children developed fistulae following a Duplay repair and following a staged BMG. Three repairs failed completely - a composite repair broke down, a BMG tube stenosed with a proximal leak, and a stricture recurred with loss of a ventral free tunical graft. Conclusions: In salvage procedures performed on hypospadias cripples, a staged repair with buccal mucosa as an inlay in the first stage followed by tubularization 4-6 months later provides good results. A simple algorithm to plan corrective surgery in failed hypospadias cases and obtain satisfactory results is devised.

  11. Career development during childhood and adolescence.

    Science.gov (United States)

    Porfeli, Erik J; Lee, Bora

    2012-01-01

    Identity development is central to the career development of children and adolescents. This article reviews the literature pertaining to identity development as being composed of career exploration, commitment, and reconsideration and offers some implications for career interventions.

  12. Parental Influence on Young People's Career Development.

    Science.gov (United States)

    Otto, Luther B.; Call, Vaughn R. A.

    1985-01-01

    Describes theory and research on parental influence on young people's career development and highlights an important implication of this relationship for career counseling. The authors discuss a seminar that helps parents help their children choose careers. (CT)

  13. The Crescendo Effect in Career Motivation.

    Science.gov (United States)

    King, Albert S.

    1997-01-01

    Presents a strategic model for career motivation based on component dimensions of self-identity, self-insight, and career resilience. Identifies these elements as part of the greater construct of career commitment. (SK)

  14. The Crescendo Effect in Career Motivation.

    Science.gov (United States)

    King, Albert S.

    1997-01-01

    Presents a strategic model for career motivation based on component dimensions of self-identity, self-insight, and career resilience. Identifies these elements as part of the greater construct of career commitment. (SK)

  15. Influence of LET on repair of DNA damages in Deinococcus radiodurans

    Energy Technology Data Exchange (ETDEWEB)

    Kobayashi, Y.; Tanaka, A.; Kikuchi, M.; Shimizu, T.; Watanabe, H. [Japan Atomic Energy Research Inst., Takasaki, Gunma (Japan). Takasaki Radiation Chemistry Research Establishment; Cao, J.P.; Taucher-Scholz, G.

    1997-03-01

    Inactivation caused by heavy ions was studied in dry cells of radioresistant bacterium Deinococcus radiodurans. All survival curves were characterized by a large shoulder of the curves. No final slopes of the exponential part of survival curves for heavy ion irradiation were steeper than that for 2.0 MeV electron irradiation. The plots of RBE versus LET showed no obvious peaks, suggesting that this bacterium can repair not only DNA double strand breaks (DSBs) but also clustered damage in DNA which may be induced by heavy ions. The genomic DNA of D. radiodurans was cleaved into large fragments with restriction enzyme Not I after post-irradiation incubation and the fragments were separated using pulsed-field gel electrophoresis (PFGE). DSBs induction and rejoining process were analyzed by detection of the reappearance of ladder pattern of DNA fragments. The required repair time after heavy ions irradiation was longer than the repair time for electrons at the same dose of irradiation, however, the rate of repair enzyme induction was almost similar to each other between electrons and heavy ions, suggesting that the same repair system is likely to be used after both low and high LET irradiations. (author)

  16. Career Engagement: Bridging Career Counseling and Employee Engagement

    Science.gov (United States)

    Neault, Roberta A.; Pickerell, Deirdre A.

    2011-01-01

    In this article, the authors present a model of career engagement that helps bridge the gap between career counselors' focus on supporting individuals to find meaningful work and employers' desire for an engaged, productive, and committed workforce. They briefly review highlights of the employee engagement literature, introduce the Career…

  17. The Career Camp: An Early, Early Career Guidance Program.

    Science.gov (United States)

    Wright, Sue Edmonds

    1995-01-01

    Describes Marshall University's summer camp where young people participate in activities that help prepare them for important career choices they will need to make when entering college. Benefits for the university include: recruitment, enhanced community partnerships, better informed incoming freshman, and publicity for the career center. (JBJ)

  18. Career Development in Higher Education. Issues in Career Development

    Science.gov (United States)

    Samide, Jeff L., Ed.; Eliason, Grafton T., Ed.; Patrick, John

    2011-01-01

    The purpose of Career Development in Higher Education is to provide a broad and in-depth look at the field of career development as it applies to individuals involved in higher education activities, in a variety of educational and vocational training settings. The book will examine some of the field's major themes, approaches and assumptions using…

  19. The Role of Career Adaptabilities for Mid-Career Changers

    Science.gov (United States)

    Brown, Alan; Bimrose, Jenny; Barnes, Sally-Anne; Hughes, Deirdre

    2012-01-01

    Career adaptability is mediated by personality factors and socio-psychological processes, with learning playing an important role. Using a five-fold career adapt-abilities competency framework (defined here as control, curiosity, commitment, confidence and concern), which was developed from the international quantitative study that is the focus of…

  20. A Home-Career Conflict Measure: Career Counseling Implications.

    Science.gov (United States)

    Tipping, Lenore M.; Farmer, Helen S.

    1991-01-01

    Extended construct validity of Farmer's (1984) Home-Career-Conflict Measure (H-C) by exploring its relationship with measure of perceived sex role expectations of significant others. Single female college students (n=97) completed the H-C and the Attitudes toward Sex Roles scale. Findings indicated that significantly higher home-career conflict…

  1. Career Trajectories of Older Women: Implications for Career Guidance

    Science.gov (United States)

    Bimrose, Jenny; McMahon, Mary; Watson, Mark

    2013-01-01

    As work and employment transitions become more frequent and difficult, the demand for formal career guidance increases. Women are likely to experience structural labour market disadvantage and may benefit from formal support that is sympathetic to their particular needs. Yet the traditional psychological paradigms that dominate career guidance…

  2. Career Planning Trends in Japanese Companies

    OpenAIRE

    Firkola, Peter

    2005-01-01

    This paper provides an overview of career planning trends in Japanese companies. Research on career development in Japan is first reviewed. Career planning practices in Japanese companies are examined. Factors influencing career planning choice are then discussed. It was found that there appears to be a change occurring in the career planning practices, specifically the shifting of responsibility for an employees' career from the employer to the employee. (JEL Classifi-cation: M12, M54

  3. NPS career forward

    OpenAIRE

    McLay, Deidre

    2014-01-01

    "NPS provided a critical link in my career from warfighting operator to strategic thinker and reasoner. I found the education at NPS to be superior in every respect, and I enrolled in as many classes as was physically possible during my time there so that I could take advantage of the expertise and resources that were available. My NPS education, as well as the Strategic Group XIX fellowship formulated many of the current initiatives for my Joint UAS Concepts team." US Navy (USN) author

  4. AAS Career Services

    Science.gov (United States)

    Marvel, Kevin B.

    2012-08-01

    The American Astronomical Society provides substantial programs in the area of Career Services.Motivated by the Society's mission to enhance and share humanity's understanding of the Universe, the AAS provides a central resource for advertising positions, interviewing opportunities at its annual winter meeting and information, workshops and networks to enable astronomers to find employment.The programs of the Society in this area are overseen by an active committee on employment and the AAS Council itself.Additional resources that help characterize the field, its growth and facts about employment such as salaries and type of jobs available are regularly summarized and reported on by the American Institute of Physics.

  5. Crossover from Electromagnetically Induced Transparency to Autler-Townes Splitting in Open Ladder Systems with Doppler Broadening

    CERN Document Server

    Tan, Chaohua

    2013-01-01

    We propose a general theoretical scheme to investigate the crossover from electromagnetically induced transparency (EIT) to Autler-Townes splitting (ATS) in open ladder-type atomic and molecular systems with Doppler broadening. We show that when the wavenumber ratio $k_c/k_p\\approx -1$, EIT, ATS, and EIT-ATS crossover exist for both ladder-I and ladder-II systems, where $k_c$ ($k_p$) is the wavenumber of control (probe) field. Furthermore, when $k_c/k_p$ is far from $-1$ EIT can occur but ATS is destroyed if the upper state of the ladder-I system is a Rydberg state. In addition, ATS exists but EIT is not possible if the control field used to couple the two lower states of the ladder-II system is a microwave field. The theoretical scheme developed here can be applied to atoms, molecules, and other systems (including Na$_2$ molecules, and Rydberg atoms), and the results obtained may have practical applications in optical information processing and transformation.

  6. The analytic structure and the transcendental weight of the BFKL ladder at NLL accuracy arXiv

    CERN Document Server

    Del Duca, Vittorio; Marzucca, Robin; Verbeek, Bram

    We study some analytic properties of the BFKL ladder at next-to-leading logarithmic accuracy (NLLA). After generalising a procedure by Chirilli and Kovchegov to construct consistent NLO eigenfunctions for any value of $n$, we show that the BFKL ladder can be evaluated order by order in the coupling in terms of certain generalised single-valued multiple polylogarithms recently introduced by Schnetz. We develop techniques to evaluate the BFKL ladder at any loop order, and we present explicit results up to five loops. Using the freedom in defining the matter content of the NLO BFKL eigenvalue, we obtain conditions for the BFKL ladder in momentum space at NLLA to have maximal transcendental weight. We observe that, unlike in moment space, the result in momentum space in N=4 SYM is not identical to the maximal weight part of QCD, and moreover that there is no gauge theory with this property. We classify the theories for which the BFKL ladder at NLLA has maximal weight in terms of their field content, and we find t...

  7. Career Directions for Drafting CAD Technicians.

    Science.gov (United States)

    Moore, Pam

    2002-01-01

    Provides information careers for drafting/computer-assisted drafting technicians, including salaries, responsibilities, employment outlook, working conditions, skills needed, and career advancement opportunities. Lists professional drafting organizations. (JOW)

  8. Progress of peripheral nerve repair

    Institute of Scientific and Technical Information of China (English)

    陈峥嵘

    2002-01-01

    Study on repair of peripheral nerve injury has been proceeding over a long period of time. With the use of microsurgery technique since 1960s,the quality of nerve repair has been greatly improved. In the past 40 years, with the continuous increase of surgical repair methods, more progress has been made on the basic research of peripheral nerve repair.

  9. Achilles tendon repair

    Science.gov (United States)

    Achilles tendon rupture-surgery; Percutaneous Achilles tendon rupture repair ... To fix your torn Achilles tendon, the surgeon will: Make a cut down the back of your heel Make several small cuts rather than one large cut ...

  10. Diaphragmatic hernia repair - slideshow

    Science.gov (United States)

    ... presentations/100014.htm Diaphragmatic hernia repair - series—Normal anatomy To use the sharing ... Overview The chest cavity includes the heart and lungs. The abdominal cavity includes the liver, the stomach, ...

  11. Eye muscle repair - slideshow

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/presentations/100062.htm Eye muscle repair - series—Normal anatomy To use the sharing ... the eyeball to the eye socket. The external muscles of the eye are found behind the conjunctiva. ...

  12. Tracheoesophageal fistula repair - slideshow

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/presentations/100103.htm Tracheoesophageal fistula repair - series—Normal anatomy To use the sharing ... Editorial team. Related MedlinePlus Health Topics Esophagus Disorders Fistulas Tracheal Disorders A.D.A.M., Inc. is ...

  13. Inguinal hernia repair - slideshow

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/presentations/100027.htm Inguinal hernia repair - series—Normal anatomy To use the sharing ... to slide 4 out of 4 Overview A hernia occurs when part of an organ protrudes through ...

  14. INTERNAL REPAIR OF PIPELINES

    Energy Technology Data Exchange (ETDEWEB)

    Robin Gordon; Bill Bruce; Ian Harris; Dennis Harwig; Nancy Porter; Mike Sullivan; Chris Neary

    2004-04-12

    The two broad categories of deposited weld metal repair and fiber-reinforced composite liner repair technologies were reviewed for potential application for internal repair of gas transmission pipelines. Both are used to some extent for other applications and could be further developed for internal, local, structural repair of gas transmission pipelines. Preliminary test programs were developed for both deposited weld metal repair and for fiber-reinforced composite liner repair. Evaluation trials have been conducted using a modified fiber-reinforced composite liner provided by RolaTube and pipe sections without liners. All pipe section specimens failed in areas of simulated damage. Pipe sections containing fiber-reinforced composite liners failed at pressures marginally greater than the pipe sections without liners. The next step is to evaluate a liner material with a modulus of elasticity approximately 95% of the modulus of elasticity for steel. Preliminary welding parameters were developed for deposited weld metal repair in preparation of the receipt of Pacific Gas & Electric's internal pipeline welding repair system (that was designed specifically for 559 mm (22 in.) diameter pipe) and the receipt of 559 mm (22 in.) pipe sections from Panhandle Eastern. The next steps are to transfer welding parameters to the PG&E system and to pressure test repaired pipe sections to failure. A survey of pipeline operators was conducted to better understand the needs and performance requirements of the natural gas transmission industry regarding internal repair. Completed surveys contained the following principal conclusions: (1) Use of internal weld repair is most attractive for river crossings, under other bodies of water, in difficult soil conditions, under highways, under congested intersections, and under railway crossings. (2) Internal pipe repair offers a strong potential advantage to the high cost of horizontal direct drilling (HDD) when a new bore must be created

  15. Pectus excavatum repair - slideshow

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/presentations/100035.htm Pectus excavatum repair - series—Normal anatomy To use the sharing ... Go to slide 4 out of 4 Overview Pectus excavatum is a deformity of the front of the ...

  16. Hiatal hernia repair - slideshow

    Science.gov (United States)

    ... presentations/100028.htm Hiatal hernia repair - series—Normal anatomy To use the sharing features on ... Overview The esophagus runs through the diaphragm to the stomach. It functions to carry food from the mouth ...

  17. Repairing ceramic insulating tiles

    Science.gov (United States)

    Dunn, B. R.; Laymance, E. L.

    1980-01-01

    Fused-silica tiles containing large voids or gauges are repaired without adhesives by plug insertion method. Tiles are useful in conduits for high-temperature gases, in furnaces, and in other applications involving heat insulation.

  18. Rotator cuff repair - slideshow

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/presentations/100229.htm Rotator cuff repair - series—Normal anatomy To use the sharing ... to slide 4 out of 4 Overview The rotator cuff is a group of muscles and tendons that ...

  19. Cleft lip repair - slideshow

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/presentations/100010.htm Cleft lip repair - series—Normal anatomy To use the sharing ... abnormal opening in the middle of the upper lip. A cleft palate is an opening in the roof of ...

  20. Grey Repairable System Analysis

    Institute of Scientific and Technical Information of China (English)

    Renkuan Guo; Charles Ernie Love

    2006-01-01

    In this paper, we systematically discuss the basic concepts of grey theory, particularly the grey differential equation and its mathematical foundation, which is essentially unknown in the reliability engineering community. Accordingly,we propose a small-sample based approach to estimate repair improvement effects by partitioning system stopping times into intrinsic functioning times and repair improvement times. An industrial data set is used for illustrative purposes in a stepwise manner.

  1. Inked Careers: Tattooing Professional Paths

    Directory of Open Access Journals (Sweden)

    Gabriela DeLuca

    2016-12-01

    Full Text Available The concept of career has an interdisciplinary and historical constitution, which includes persons, groups, organizations and society. Given that, we aim to deepen the interactionist notion of career from the understanding of a deviant path, supported by a theory and a method appropriated to the cited call for interdisciplinary approaches. Dilemmas (Hughes, 1958 and conflicts (Hughes, 1937 emerged as important analytical categories. Although necessary, these two concepts were not sufficient to contemplate analyses in their entirety. For this reason we conceptualized a third possibility of controversy during a career: the inquiries. The study followed the Narrative method to analyze objective and subjective changes during a tattoo artist’s career through interviews and informal conversations carried out over 22 months. The discussion presents three main contributions. Theoretically, a new understanding of the concept of careers, linking past, present and future and the idea of non-linearity of experienced and envisioned careers. Methodologically, suggesting orientations for future career studies such as the use of turning points as a methodological tool and the investigation of deviant fields. Finally, our defense of the interactionist perspective as suitable for career studies, since it allows the investigation of deviant elements.

  2. Your 50-Year Career Plan

    Science.gov (United States)

    Perlmutter, David D.

    2007-01-01

    In this article, the author discusses the meaning and importance of the long-term view in the academic profession. Taking the half-century view of a career allows everyone to conceptualize his/her work as both a solitary venture and a group effort. As your career develops and you build alliances and partnerships with colleagues--and then with…

  3. Planning Guide for Career Academies

    Science.gov (United States)

    Dayton, Charles

    2010-01-01

    A career academy is a small learning community within a high school, which selects a subset of students and teachers for a two-, three-, or four-year period. Students enter through a voluntary process; they must apply and be accepted, with parental knowledge and support. A career academy involves teachers from different subjects working together…

  4. Adult Career Assessment: Personality Measures.

    Science.gov (United States)

    Vansickle, Timothy R.; Russell, Mary T.

    1996-01-01

    Provides an overview of five assessment instruments and discusses their contribution to adult career development: (1) California Personality Inventory; (2) Myers-Briggs Type Indicator; (3) Personality Research Form; (4) Occupational Stress Inventory; and (5) Personal Career Development Profile. Includes information about publishers, intended…

  5. Career Development and Public Policy.

    Science.gov (United States)

    Borges, Nicole J.; Savickas, Mark L.

    Career development specialists need to find ways to adapt their knowledge and skills to become agents of social action. Public policy is one area where career development specialists can involve themselves to help bring about social change. This paper attempts to raise the consciousness of Society of Vocational Psychology (SVP) members and to…

  6. Innovative Approaches to Career Guidance.

    Science.gov (United States)

    Freeman, Andrew R.

    A key part of a broad-based approach to career education in Australian schools is vocational/career guidance. Various vocational guidance programs have been developed for specific groups in Australian society, including work experience, caravans, and micrographics technology for the handicapped; pre-employment courses and a family education center…

  7. Career Satisfaction Following Technical Education

    Science.gov (United States)

    McDonald, Betty Manager

    2011-01-01

    The effect of career and technical education in the Caribbean is an area of intervention research that needs more attention. This present research is the first of its kind within the region. The study benefits from a large sample size (N = 500) conducted among a non-traditional population in the field of career development. This paper reports on…

  8. Adult Career Assessment: Personality Measures.

    Science.gov (United States)

    Vansickle, Timothy R.; Russell, Mary T.

    1996-01-01

    Provides an overview of five assessment instruments and discusses their contribution to adult career development: (1) California Personality Inventory; (2) Myers-Briggs Type Indicator; (3) Personality Research Form; (4) Occupational Stress Inventory; and (5) Personal Career Development Profile. Includes information about publishers, intended…

  9. Success and Women's Career Adjustment.

    Science.gov (United States)

    Russell, Joyce E. A.; Burgess, Jennifer R. D.

    1998-01-01

    Women still face barriers to career success and satisfaction: stereotypes, assumptions, organizational culture, human resource practices, and lack of opportunities. Despite individual and organizational strategies, many women leave to become entrepreneurs. There is a need to investigate how women define career success. (SK)

  10. Professionalizing teachers in career dialogue

    NARCIS (Netherlands)

    Marinka Kuijpers; dr. Frans Meijers

    2011-01-01

    As a result of the changing notions of work schools are increasingly acknowledging that they have a strong responsibility to guide students not only in their academic growth, but also in their career development. This paper presents the result of a study about effects of teachers training on career

  11. Donor-acceptor conjugated polymers based on multifused ladder-type arenes for organic solar cells.

    Science.gov (United States)

    Wu, Jhong-Sian; Cheng, Sheng-Wen; Cheng, Yen-Ju; Hsu, Chain-Shu

    2015-03-07

    Harvesting solar energy from sunlight to generate electricity is considered as one of the most important technologies to address the future sustainability of humans. Polymer solar cells (PSCs) have attracted tremendous interest and attention over the past two decades due to their potential advantage to be fabricated onto large area and light-weight flexible substrates by solution processing at a lower cost. PSCs based on the concept of bulk heterojunction (BHJ) configuration where an active layer comprises a composite of a p-type (donor) and an n-type (acceptor) material represents the most useful strategy to maximize the internal donor-acceptor interfacial area allowing for efficient charge separation. Fullerene derivatives such as [6,6]-phenyl-C61 or 71-butyric acid methyl ester (PCBM) are the ideal n-type materials ubiquitously used for BHJ solar cells. The major effort to develop photoactive materials is numerously focused on the p-type conjugated polymers which are generally synthesized by polymerization of electron-rich donor and electron-deficient acceptor monomers. Compared to the development of electron-deficient comonomers (acceptor segments), the development of electron-rich donor materials is considerably flourishing. Forced planarization by covalently fastening adjacent aromatic and heteroaromatic subunits leads to the formation of ladder-type conjugated structures which are capable of elongating effective conjugation, reducing the optical bandgap, promoting intermolecular π-π interactions and enhancing intrinsic charge mobility. In this review, we will summarize the recent progress on the development of various well-defined new ladder-type conjugated materials. These materials serve as the superb donor monomers to prepare a range of donor-acceptor semi-ladder copolymers with sufficient solution-processability for solar cell applications.

  12. Scaffolding, ladders, chains, and rare ferrimagnetism in intermetallic borides: synthesis, crystal chemistry and magnetism.

    Science.gov (United States)

    Goerens, Christian; Brgoch, Jakoah; Miller, Gordon J; Fokwa, Boniface P T

    2011-07-04

    Single-phase polycrystalline samples and single crystals of the complex boride phases Ti(8)Fe(3)Ru(18)B(8) and Ti(7)Fe(4)Ru(18)B(8) have been synthesized by arc melting the elements. The phases were characterized by powder and single-crystal X-ray diffraction as well as energy-dispersive X-ray analysis. They are new substitutional variants of the Zn(11)Rh(18)B(8) structure type, space group P4/mbm (no. 127). The particularity of their crystal structure lies in the simultaneous presence of dumbbells which form ladders of magnetically active iron atoms along the [001] direction and two additional mixed iron/titanium chains occupying Wyckoff sites 4h and 2b. The ladder substructure is ca. 3.0 Å from the two chains at the 4h, which creates the sequence chain-ladder-chain, establishing a new structural and magnetic motif, the scaffold. The other chain (at 2b) is separated by at least 6.5 Å from this scaffold. According to magnetization measurements, Ti(8)Fe(3)Ru(18)B(8) and Ti(7)Fe(4)Ru(18)B(8) order ferrimagnetically below 210 and 220 K, respectively, with the latter having much higher magnetic moments than the former. However, the magnetic moment observed for Ti(8)Fe(3)Ru(18)B(8) is unexpectedly smaller than the recently reported Ti(9)Fe(2)Ru(18)B(8) ferromagnet. The variation of the magnetic moments observed in these new phases can be adequately understood by assuming a ferrimagnetic ordering involving the three different iron sites. Furthermore, the recorded hysteresis loops indicate a semihard magnetic behavior for the two phases. The highest H(c) value (28.6 kA/m), measured for Ti(7)Fe(4)Ru(18)B(8), lies just at the border of those of hard magnetic materials.

  13. Human capital and career success

    DEFF Research Database (Denmark)

    Frederiksen, Anders; Kato, Takao

    Denmark’s registry data provide accurate and complete career history data along with detailed personal characteristics (e.g., education, gender, work experience, tenure and others) for the population of Danish workers longitudinally. By using such data from 1992 to 2002, we provide rigorous...... evidence for the first time for the population of workers in an entire economy (as opposed to case study evidence) on the effects of the nature and scope of human capital on career success (measured by appointments to top management). First, we confirm the beneficial effect of acquiring general human...... capital formally through schooling for career success, as well as the gender gap in career success rates. Second, broadening the scope of human capital by experiencing various occupations (becoming a generalist) is found to be advantageous for career success. Third, initial human capital earned through...

  14. Basic sciences: an alternative career?

    Science.gov (United States)

    Khatri, R

    2013-01-01

    Career selection is a crucial and a complex process which is also true for the medical profession. In the context of our country, due to the limited opportunity and proper guidance, migration of medical graduates to foreign countries is increasing. Though, clinical subjects have a huge attraction, basic science field has failed to impress our medical graduates. In current scenario, basic science field seems to be a dumping site for the incompetent as the candidates who have failed trying their luck elsewhere stumble upon basic science careers though it is not true for all. Moreover, a very few medical graduates are interested in developing their career as a basic scientist. Therefore, to motivate today's young medical graduates, there is a need of a good mentor along with a proper career guidance which can help them to understand the basic science field as an alternative career.

  15. Electromagnetically induced absorption in a non-degenerate three-level ladder system

    CERN Document Server

    Whiting, Daniel J; Keaveney, James; Zentile, Mark A; Adams, Charles S; Hughes, Ifan G

    2015-01-01

    We investigate, theoretically and experimentally, the transmission of light through a thermal vapour of three-level ladder-type atoms, in the presence of 2 counter-propagating control fields. A simple theoretical model predicts the presence of electromagnetically induced absorption (EIA) in this pure three-level system when the control field is resonant. Experimentally, we use $^{87}$Rb in a large magnetic field of 0.62~T to reach the hyperfine Paschen-Back regime and realise a non-degenerate three-level system. Experimental observations verify the predictions over a wide range of detunings.

  16. Ladder-type electromagnetically induced transparency using nanofiber-guided light in a warm atomic vapor

    CERN Document Server

    Jones, D E; Pittman, T B

    2015-01-01

    We demonstrate ladder-type electromagnetically induced transparency (EIT) using an optical nanofiber suspended in a warm rubidium vapor. The signal and control fields are both guided along the nanofiber, which enables strong nonlinear interactions with the surrounding atoms at relatively low powers. Transit-time broadening is found to be a significant EIT decoherence mechanism in this tightly-confined waveguiding geometry. Nonetheless, we observe significant EIT and controlled polarization rotation using control-field powers of only a few microWatts in this relatively robust warm-atom nanofiber system.

  17. Coherent Phase Control of Multiphoton Ionization in Three-Level Ladder-Type System

    Institute of Scientific and Technical Information of China (English)

    ZHANG Shi-An; CHEN Yu-Ting; WANG Zu-Geng; SUN Zhen-Rong

    2009-01-01

    We present the theoretical investigation of photoelectron spectroscopy resulting from the strong field induced multiphoton ionization in a typical three-level ladder-style system.Our theoretical results show that the photoelectron spectral structure can be alternatively steered by spectral phase modulation.This physical mechanism for strong field quantum control is explicitly exploited by the time-dependent dressed state population.It is concluded that the phase-shaped laser pulses can be used to selectively manipulate the multiphoton ionization process in complicated quantum systems.

  18. Snakes and ladders: Localized states in the Swift-Hohenberg equation

    Energy Technology Data Exchange (ETDEWEB)

    Burke, John [Department of Physics, University of California, Berkeley, CA 94720 (United States)]. E-mail: burkej8@socrates.berkeley.edu; Knobloch, Edgar [Department of Physics, University of California, Berkeley, CA 94720 (United States)

    2007-01-15

    The Swift-Hohenberg equation with cubic and quintic nonlinearities exhibits multiple stable and unstable spatially localized states of arbitrary length in the vicinity of the Maxwell point between spatially homogeneous and periodic states. The even and odd states are organized in a characteristic snaking structure and are connected by branches of mixed parity states forming a ladder-like structure. Numerical computations are used to illustrate the changes in the localized solutions as they grow in spatial extent and to determine the stability and wavelength of the resulting states.

  19. Emergent Interacting Spin Islands in a Depleted Strong-Leg Heisenberg Ladder.

    Science.gov (United States)

    Schmidiger, D; Povarov, K Yu; Galeski, S; Reynolds, N; Bewley, R; Guidi, T; Ollivier, J; Zheludev, A

    2016-06-24

    Properties of the depleted Heisenberg spin ladder material series (C_{7}H_{10}N)_{2}Cu_{1-z}Zn_{z}Br_{4} have been studied by the combination of magnetic measurements and neutron spectroscopy. Disorder-induced degrees of freedom lead to a specific magnetic response, described in terms of emergent strongly interacting "spin island" objects. The structure and dynamics of the spin islands is studied by high-resolution inelastic neutron scattering. This allows us to determine their spatial shape and to observe their mutual interactions, manifested by strong spectral in-gap contributions.

  20. Phase diagram of three-leg ladders at strong coupling along the rungs

    OpenAIRE

    Kagan, Maxim Yu.; Haas, Stephan; Rice, T. M.

    1999-01-01

    A phase diagram of the t-J three-leg ladder as a function of hole dopping is derived in the limit where the coupling parameters along the rungs, $t_{\\perp}$ and $J_{\\perp}$, are taken to be much larger than those along the legs, $t_{||}$ and $J_{||}$ At large exchange coupling along the rungs, $J_{\\perp}/t_{\\perp}> 3 / \\sqrt{2}$, there is a transition from a low-dopping Luttinger liquid phase into a Luther-Emery liquid at a critical hole concentration $n_{crit}\\approx 1/3$. In the opposite ca...

  1. A Study of Regional Brand Positioning Strategy for Linhai Orange Based on Soft Laddering

    Institute of Scientific and Technical Information of China (English)

    Ying; TAO; Yueli; ZHANG

    2015-01-01

    In this paper,Means-End Chain Theory is used for the positioning strategy study on regional brand of Linhai Orange,and based on soft laddering method,33 Linhai Orange consumers are interviewed. By understanding the individual needs of Linhai Orange consumers,this paper establishes the " Attributes-Consequences-Value" matrix and hierarchical value map. This study aims to explore the regional brand positioning strategy of Linhai Orange,in order to promote the regional brand building and extension of Linhai Orange and enhance the sustained regional brand development of Linhai Orange.

  2. Thermoelectric Properties of Solution-Processed n-Doped Ladder-Type Conducting Polymers

    DEFF Research Database (Denmark)

    Wang, Suhao; Sun, Hengda; Ail, Ujwala;

    2016-01-01

    Ladder-type "torsion-free" conducting polymers (e.g., polybenzimidazobenzophenanthroline (BBL)) can outperform "structurally distorted" donor-acceptor polymers (e.g., P(NDI2OD-T2)), in terms of conductivity and thermoelectric power factor. The polaron delocalization length is larger in BBL than...... in P(NDI2OD-T2), resulting in a higher measured polaron mobility. Structure-function relationships are drawn, setting material-design guidelines for the next generation of conducting thermoelectric polymers....

  3. Optimum design of low-pass switched-capacitor ladder filters

    Science.gov (United States)

    Davis, R. D.; Trick, T. N.

    1980-06-01

    A general technique for realizing Bruton's LDI transformation in low-pass switched-capacitor ladder filters is presented, which results in switched-capacitor integrators that are insensitive to parasitic capacitances. It is shown that the correct filter response may be obtained by realizing only the stable poles of the LDI transformed LC network. Realization of these 'stable' poles is reduced to the problem of solving a system of nonlinear equations. The design of a third-order Chebyshev low-pass filter is presented as an example.

  4. Absorption properties of a driven Doppler-broadened ladder system with hyperfine structure

    Institute of Scientific and Technical Information of China (English)

    吴金辉; 高锦岳

    2002-01-01

    We have studied the absorption spectrum of a Doppler-broadened ladder system, where the highest level is coupled into two middle hyperfine sublevels by a strong coherent field. We find that, when the system is considered as homoge- neous, either two or three spectral components are observed, depending on the detuning of the coherent field. But when the velocity distribution of atoms is considered, we can always observe one electromagnetically induced transparency (EIT) window with high dispersion. So the atomic hyperfine structure cannot be an impediment for obtaining EIT.

  5. Population transfer by femtosecond laser pulses in a ladder-type atomic system

    Institute of Scientific and Technical Information of China (English)

    Fan Xi-Jun; Li Ai-Yun; Tong Dian-Min; Liu Cheng-Pu

    2008-01-01

    The population transfer in a ladder-type atomic system driven by linearly polarized sech-shape femtosecond laser pulses is investigated by numerically solving Schrodinger equation without including the rotating wave approximation (RWA). It is shown that population transfer is mainly determined by the Rabi frequency (strength) of the driving laser field and the chirp rate, and that the ratio of the dipole moments and the pulse width also have a prominent effect on the population transfer. By choosing appropriate values of the above parameters, complete population transfer can be realized.

  6. Automatic Translation of a Process Level Petri-Net to a Ladder Diagram

    Science.gov (United States)

    Cohen*, Yuval; Wang, Ming-En; Bidanda, Bopaya

    Major part of discrete industrial automation hardware is controlled by Programmable Logic Controllers (PLCs). While Petri-nets (PNs) have been proposed by many researchers for modelling shop floor discrete control, the majority of the world PLCs are programmed using ladder diagrams (LD) and significant portion of them cannot be programmed using another language. This paper proposes hierarchical approach to translating PN to LD: for describing the high level process, it introduces automatic translation technique of process level PN, while utilizing a recently developed method (for translating PN to Boolean logic) for translating the embedded tasks to a LD. Interestingly, the generated LD code enables the reconstruction of the original Petri-net.

  7. Magneto-optical polarization rotation in a ladder-type atomic system for tunable offset locking

    CERN Document Server

    Parniak, Michał; Wasilewski, Wojciech

    2016-01-01

    We demonstrate an easily tunable locking scheme for stabilizing frequency-sum of two lasers on a two-photon ladder transition based on polarization rotation in warm rubidium vapors induced by magnetic field and circularly polarized driving field. In principle unlimited tunability of the two-photon offset frequency is due to strong splitting and shifting of magnetic states in external field. We achieve two-photon detuning of 120 MHz with the single-photon detuning of up to 20 GHz, as well as strong rotation signal.

  8. Women's and Men's Career Referents: How Gender Composition and Comparison Level Shape Career Expectations

    OpenAIRE

    Donald E. Gibson; Lawerence, Barbara S.

    2009-01-01

    This study examines how women’s and men’s career referents, the people they see as having similar careers, affect career expectations. We raise two questions. First, what is the relative effect of the gender composition and comparison level of career referents on such expectations? Second, what happens to career expectations when women and men identify career referents at the same comparison level? Current research suggests that women have lower career expectations than men because they compa...

  9. Qualifying for Career Planning

    Directory of Open Access Journals (Sweden)

    Aleksandra Kovač

    1996-12-01

    Full Text Available The need for education in various spheres of life, which allows a person to fully develop his/her personality, is more and more presen t also in our society. The discussed educational programme Discovering Vocational Goals and Forming Strategies· to Realize them qualifies people for autonomous career planning by offer­ ing them one of the possible ways of making decisions in relation to profession and job. In the course of the realization of the programme the participants are given the chance to think about the kind of work that would suit their interests, capabilities and individual characteristics as weel as the needs in certain environments (possible employers. They are encouraged to make an actual plan, stating how and when the desired objective will be reached. In 1995 the pro­ gramme was being carried out within nine semi­ nars organized at the Employment Offices in Maribor and Ptuj. During that time the pro­ gramme has also been evaluated by Doba - Education Office, which was funded by the Ministry of Work, Family and Social Matters. The paper includes the content of the programme as well as the assessments of the research project. The presented data show that the participants learned the method of career planning and acqu­ired greater self-confidence and motivation to solve their job problem actively.

  10. Spin gap and string order parameter in the ferromagnetic spiral staircase heisenberg ladder: a quantum Monte Carlo study.

    Science.gov (United States)

    Brünger, C; Assaad, F F; Capponi, S; Alet, F; Aristov, D N; Kiselev, M N

    2008-01-11

    We consider a spin-1/2 ladder with a ferromagnetic rung coupling J perpendicular and inequivalent chains. This model is obtained by a twist (theta) deformation of the ladder and interpolates between the isotropic ladder (theta=0) and the SU(2) ferromagnetic Kondo necklace model (theta = pi). We show that the ground state in the (theta, J perpendicular) plane has a finite string order parameter characterizing the Haldane phase. Twisting the chain introduces a new energy scale, which we interpret in terms of a Suhl-Nakamura interaction. As a consequence we observe a crossover in the scaling of the spin gap at weak coupling from delta/J parallel proportional, variant J perpendicular/J parallel for theta theta c. Those results are obtained on the basis of large scale quantum Monte Carlo calculations.

  11. Magnetic dilution in the cadmium-doped spin ladder compound Cdx Cu1 - x (quinoxaline) Br2

    Science.gov (United States)

    Keith, Brian; Landee, Chris; Turnbull, Mark

    2011-03-01

    Both Cu (quinoxaline) (Br2) and Cu (quinoxaline) (Cl2) are examples of molecule-based magnets where the CuX4 dimers are linked into ladders by quinoxaline molecules, where X is either Cl or Br. The rung exchange occurs through the bridging halides while the rail exchange occurs through the quinoxaline rings. Introducing random rung interactions into the system [ Cu (quinoxaline) (Br2)1-x (Cl2)x ] has caused the spin gap to close, in contrast with the gapped pure spin ladder parents. Crystal growth of non-magnetic-doped molecular magnets, CdxCu1 - x (2 , 3 - dimethylpyrazine)Br2 , have been performed for several values of the nominal conentration, x, and have been confirmed. The magnetizations and susceptibilities of the magnetically diluted ladder assemblage are presented along with a comparison of the effects of dilution from the pure case (x=0).

  12. Implementability of two-qubit unitary operations over the butterfly network and the ladder network with free classical communication

    Energy Technology Data Exchange (ETDEWEB)

    Akibue, Seiseki [Department of Physics, Graduate School of Science, The University of Tokyo, Tokyo (Japan); Murao, Mio [Department of Physics, Graduate School of Science, The University of Tokyo, Tokyo, Japan and NanoQuine, The University of Tokyo, Tokyo (Japan)

    2014-12-04

    We investigate distributed implementation of two-qubit unitary operations over two primitive networks, the butterfly network and the ladder network, as a first step to apply network coding for quantum computation. By classifying two-qubit unitary operations in terms of the Kraus-Cirac number, the number of non-zero parameters describing the global part of two-qubit unitary operations, we analyze which class of two-qubit unitary operations is implementable over these networks with free classical communication. For the butterfly network, we show that two classes of two-qubit unitary operations, which contain all Clifford, controlled-unitary and matchgate operations, are implementable over the network. For the ladder network, we show that two-qubit unitary operations are implementable over the network if and only if their Kraus-Cirac number do not exceed the number of the bridges of the ladder.

  13. Relationships among Career and Life Stress, Negative Career thoughts, and Career Decision State: A Cognitive Information Processing Perspective

    Science.gov (United States)

    Bullock-Yowell, Emily; Peterson, Gary W.; Reardon, Robert C.; Leierer, Stephen J.; Reed, Corey A.

    2011-01-01

    According to cognitive information processing theory, career thoughts mediate the relationship between career and life stress and the ensuing career decision state. Using a sample of 232 college students and structural equation modeling, this study found that an increase in career and life stress was associated with an increase in negative career…

  14. Relationships among Career and Life Stress, Negative Career thoughts, and Career Decision State: A Cognitive Information Processing Perspective

    Science.gov (United States)

    Bullock-Yowell, Emily; Peterson, Gary W.; Reardon, Robert C.; Leierer, Stephen J.; Reed, Corey A.

    2011-01-01

    According to cognitive information processing theory, career thoughts mediate the relationship between career and life stress and the ensuing career decision state. Using a sample of 232 college students and structural equation modeling, this study found that an increase in career and life stress was associated with an increase in negative career…

  15. Career Maturity, Career Decision-Making Self-Efficacy and Career Indecision: A Review of the Accrued Evidence.

    Science.gov (United States)

    Prideaux, Lee-Ann; Creed, Peter A.

    2001-01-01

    A review of literature on three career development constructs--career maturity, career decision-making self-efficacy, and career indecision--identified the usefulness and validity of each and strengths and weaknesses of relevant research. A close relationship suggests they should be investigated together and more systematically. Revision of career…

  16. Programación de Controladores Lógicos (PLC) mediante Ladder y Lenguaje de Control Estructurado (SCL) en MATLAB

    OpenAIRE

    Heyder David Páez-Logreira; Ronald Zamora-Musa; José Bohórquez-Pérez

    2015-01-01

    Existen diferentes lenguajes de programación de Controladores Lógicos Programables (PLC), el más común de ellos es el lenguaje de programación gráfico para autómatas programables llamado LADDER. Sin embargo, el lenguaje LADDER no es amigable en programas que requieren de cálculos de ecuaciones matemáticas, por ejemplo, el cálculo del volumen de un tanque en un control de nivel. Lenguajes alternativos como el Lenguaje de Control Estructurado (SCL) son menos estudiados dada su complejidad y poc...

  17. Programación de Controladores Lógicos (PLC) mediante Ladder y Lenguaje de Control Estructurado (SCL) en MATLAB

    OpenAIRE

    Heyder David Páez-Logreira; Ronald Zamora-Musa; José Bohórquez-Pérez

    2015-01-01

    Existen diferentes lenguajes de programación de Controladores Lógicos Programables (PLC), el más común de ellos es el lenguaje de programación gráfico para autómatas programables llamado LADDER. Sin embargo, el lenguaje LADDER no es amigable en programas que requieren de cálculos de ecuaciones matemáticas, por ejemplo, el cálculo del volumen de un tanque en un control de nivel. Lenguajes alternativos como el Lenguaje de Control Estructurado (SCL) son menos estudiados dada su complejidad y poc...

  18. A ladder network modelling the electrochemical impedance of the diffusion and reaction processes in semi-infinite space.

    Science.gov (United States)

    Moya, A A

    2016-02-01

    The Gerischer impedance, i.e., the diffusion-reaction impedance of an ionic species in semi-infinite space, has been modelled by means of a novel simple equivalent ladder electric circuit constituted by a finite number of resistors and capacitors, which corresponds to the Cauer structure obtained from development into continued fractions. The Nyquist plots of the impedance of the ladder network or Cauer circuit and the deviation with respect to the Gerischer impedance have been originally analysed as a function of the number of circuit elements. From the Cauer equivalent circuit, a new and simple expression modelling the Gerischer impedance at the limit of the lowest frequencies has been derived.

  19. CAREER PLANNING AND CAREER MANAGEMENT AS CORRELATES FOR CAREER DEVELOPMENT AND JOB SATISFACTION A CASE STUDY OF NIGERIAN BANK EMPLOYEES

    Directory of Open Access Journals (Sweden)

    Bola Adekola

    2011-06-01

    Full Text Available The notion of empowering human capital to onset creativity and innovation through planning the careers of institutional members using HRM policies and practices to develop different mindsets, skills and competencies with the ultimate aim to provide a range of innovative products and services is attracting attention. This paper explores the link between career planning and career management as antecedents of career development and job satisfaction, and career commitment as its outcome. A sample of 505 employees of a Nigerian Bank revealed the significant link between the variables of career planning and career management, and career development, and in turn, with job satisfaction and career commitment. The paper discusses the implications of these findings for career development.

  20. The NFL Orthopaedic Surgery Outcomes Database (NO-SOD): The Effect of Common Orthopaedic Procedures on Football Careers.

    Science.gov (United States)

    Mai, Harry T; Alvarez, Andrew P; Freshman, Ryan D; Chun, Danielle S; Minhas, Shobhit V; Patel, Alpesh A; Nuber, Gordon W; Hsu, Wellington K

    2016-09-01

    Injuries are inherent to the sport of American football and often require operative management. Outcomes have been reported for certain surgical procedures in professional athletes in the National Football League (NFL), but there is little information comparing the career effect of these procedures. To catalog the postoperative outcomes of orthopaedic procedures in NFL athletes and to compare respective prognoses and effects on careers. Case series; Level of evidence, 4. Athletes in the NFL undergoing procedures for anterior cruciate ligament (ACL) tears, Achilles tendon tears, patellar tendon tears, cervical disc herniation, lumbar disc herniation, sports hernia, knee articular cartilage repair (microfracture technique), forearm fractures, tibial shaft fractures, and ankle fractures were identified through team injury reports or other public records. Game and performance statistics during the regular season were collected before and after surgery. Statistical analysis was performed with significance accepted as P NFL athletes were included. Overall, 79.4% of NFL athletes returned to play after an orthopaedic procedure. Forearm open reduction and internal fixation (ORIF), sports hernia repair, and tibia intramedullary nailing (IMN) led to significantly higher return-to-play (RTP) rates (90.2%-96.3%), while patellar tendon repair led to a significantly lower rate (50%) (P NFL careers, with patellar tendon repair faring worst with respect to the RTP rate, career length after surgery, games played, and performance at 1 year and 2 to 3 years after surgery. © 2016 The Author(s).