WorldWideScience

Sample records for assisting apprenticeship cycles

  1. Assisted Cycling Tours

    Science.gov (United States)

    Hollingsworth, Jan Carter

    2008-01-01

    This article discusses Assisted Cycling Tours (ACT), a Westminster, Colorado based 501(c)3, non-profit that is offering the joy of bicycle tours in breathtaking, scenic locations to children and adults with developmental and physical disabilities and their families. ACT was founded by Bob Matter and his son David with a goal of opening up the…

  2. Successful apprenticeships

    CERN Multimedia

    Anaïs Schaeffer

    2012-01-01

    The 2008-2012 group of CERN apprentices has every right to be proud: as their stay at the Laboratory ends, all four have received diplomas. Well done!   Alexandre Savoy (left) and Liridon Agushi (right) at the 2012 UGI award ceremony, 1 November. This year, four young CERN apprentices — Floriane Stauffer, Alexandre Savoy, Laurent Deillon (physics lab technicians) and Liridon Agushi (electronics technician) —  received their diplomas, the Certificat Fédéral de Capacité (CFC). During their 2008-2012 apprenticeship under the supervision of Jean-Marc Bouché, who is responsible for the training of technical apprentices in the HR Department, they were trained by CERN professionals with qualifications in many different areas. Every year, the Geneva Industrial Union (UIG) awards its prizes for the best apprentices who graduate in mechatronics. This year, CERN got two of the prizes. Alexandre Savoy and Liridon Agushi are the hap...

  3. Apprenticeships in success

    CERN Multimedia

    Anaïs Schaeffer

    2013-01-01

    Another perfect record for CERN's Apprenticeship Programme: double diplomas for all this year's graduates!   Maxime Aebischer (4th from left) at the Prix de l’Union industrielle genevoise award ceremony. The prizes were presented by Pierre Lathuilière, UIG apprenticeship officer (far left), and Pierre-François Unger, Geneva state councillor (2nd from left). CERN's apprentices can be proud of themselves yet again. All five of the 2009-2013 students who left CERN in June went away with two diplomas in their pockets: the CFC (Certificat Fédéral de Capacité) and the Maturité professionnelle. We would like to congratulate Melinda Hiltbrand and Sydney Bussard, laboratory technician apprentices, and Maxime Aebischer, Marc-André Duverney and Tanguy Ruggiero, electronics apprentices. Maxime Aebischer, who obtained excellent results throughout his four-year apprenticeship at CERN, was also aw...

  4. Developing Apprenticeships. Briefing Note

    Science.gov (United States)

    Cedefop - European Centre for the Development of Vocational Training, 2014

    2014-01-01

    To reduce high unemployment among their young people, countries are looking to others for help. During the economic downturn, some countries have performed better and youth unemployment has remained relatively low, for example in Germany, the Netherlands and Austria. This has been attributed in part to their apprenticeships or "dual'"…

  5. Apprenticeship as a remedy for youth unemployement

    NARCIS (Netherlands)

    Lieshout, Harm van

    2014-01-01

    Markets for intermediate skills Some comparative figures German apprenticeship Apprenticeship in the U.S. Work-based vocational education and training in the Netherlands Apprenticeship governance & policy learning More work-based learning in Sweden? The SIEPS Report

  6. Apprenticeship: a worthwhile option

    CERN Multimedia

    Laëtitia Pedroso

    2010-01-01

    What better way is there to get good training than by alternating classwork with practical work? This is what CERN offers with its long-standing apprenticeship training programme, which this year again saw two young participants win awards from the Union industrielle genevoise (UIG).   Graduation ceremony at ARENA. If you think you’ve seen this story before, that’s because you have: for several years now, CERN's apprentices have been awarded the UIG prize. The apprenticeship training programme is intended for young people aged between 15 and 21. It runs over four years and is available for two trades: electronics technicians and physics laboratory technicians (see box). This year, once again, the programme proved its mettle. Each year, prizes are awarded to the best apprentices in the canton of Geneva at a special ceremony at which the 1 700 apprentices get their CFC (Certificat fédéral de capacité) diplomas. Despite its formal nature&...

  7. Education and Apprenticeship

    OpenAIRE

    Lazaridis, Nikolaos

    2010-01-01

    The main purpose of education and apprenticeship in ancient Egypt was the training of scribes and of specialist craftsmen. The result of this profession-oriented educational system was restricted accessibility to schooling, most probably favoring male members of the Egyptian elite. Basic education offered in Egyptian local schools consisted of the teaching of language, mathematics, geography, and of other subjects appropriate for the preparation of potential scribes who were destined to work ...

  8. Apprenticeship, Vocational Education and CETA

    Science.gov (United States)

    Arpin, Harold T.

    1978-01-01

    Emphasizing Wisconsin's goal to make apprenticeship training available to all CETA (Comprehensive Employment and Training Act) eligible people, the legislative history of Wisconsin's apprenticeship training system and its relationships to the state's vocational, technical, and adult education system and to CETA are explained. (BM)

  9. Apprenticeship at CERN

    CERN Multimedia

    Staff Association

    2016-01-01

    In 1961, based on the finding that the evolution of the labour market created a growing need for qualified staff, a first agreement between the Republic and Canton of Geneva and CERN was signed. One of the objectives of this agreement was the vocational training of young electronics and physics laboratory technicians. CERN, an important stakeholder in the local economy, highlighted with this agreement its willingness to participate in the local social and economic development. The first apprentice arrived at CERN in 1965. In 1971, the apprenticeship centre was created; it now hosts over twenty apprentices in total and welcomes about six new apprentices each year. These apprenticeships are for young people aged between 15 and 21 years, coming from one of the CERN Member States, and having completed their mandatory education, e.g. 11th grade in Switzerland or 3ème in France. The training is divided between working time at CERN and one or two days per week at school (CFPT in Geneva for electronics or ...

  10. Luteal phase support for assisted reproduction cycles (Review)

    OpenAIRE

    Linden, M.; Buckingham, K.; Farquhar, C; Kremer, J A M; Metwally, M.

    2011-01-01

    BACKGROUND: Progesterone prepares the endometrium for pregnancy by stimulating proliferation in response to human chorionic gonadotropin (hCG), which is produced by the corpus luteum. This occurs in the luteal phase of the menstrual cycle. In assisted reproduction techniques (ART) the progesterone or hCG levels, or both, are low and the natural process is insufficient, so the luteal phase is supported with either progesterone, hCG or gonadotropin releasing hormone (GnRH) agonists. Luteal phas...

  11. Apprenticeship or reflection

    DEFF Research Database (Denmark)

    Dau, Susanne

    2014-01-01

    This case-study investigates the implementation of blended learning in two undergraduate bachelor educations. The main focus is how blended learning affects the knowledge development in these educations. It is stressed, that knowledge development among students as well as in the professions...... are influenced by the periods of vocational training in internship in practice. The professional practitioners role as instructors of students seems to some extend to limit the students access to valuable forms of knowledge if apprenticeship is dismissed. So, the question raised in this paper, is how this causes...... a pragmatic approach of mixed method. The empirical data are derived from survey, document analysis, observation studies and focus group interviews of students, lectures, and practitioners. Data are collected in the first half year of the students’ education at a university college in Denmark in the years...

  12. Should Your School Offer Apprenticeship Training?

    Science.gov (United States)

    Lewis, Morgan V.; Stone, James R., III

    2011-01-01

    Apprenticeship is one of several approaches to work-based learning (WBL). Apprenticeships have all the features needed to prepare workers for occupations that require extended study to attain competence. Apprentices begin with relatively simple tasks and progress to those requiring more complex skills. Apprenticeship has had a long history in the…

  13. Requests for medical assistance during an amateur road cycling race.

    Science.gov (United States)

    Roi, Giulio Sergio; Tinti, Riccardo

    2014-12-01

    Requests for medical assistance during an amateur road cycling race, which included 56,700 cyclists over 6 consecutive races between 2006 and 2011, were analysed with the aim of improving injury prevention and medical coverage. Medical assistance was requested by a small percentage of participants (1.7 ± 1.0%), but the actual number seeking assistance was quite high due to the large total number of participants (162 ± 51). 0.17% of all participants did not finish the race for medical reasons. No fatal injuries were recorded. The incidence rate of requests for medical assistance was 0.108/1,000 km, and the incidence of withdrawal was 0.011/1,000 km of the race. Of all medical requests, those due to direct trauma caused by falls accounted for 63%, requests for overload injuries accounted for 4% and requests for non-traumatic complaints accounted for 22% of the total; 11% of requests were not classified. Weather conditions may affect the type and the incidence of requests: requests for traumatic injuries increase if raining; requests for heat-related illnesses if hot. Prevention techniques are aimed at guaranteeing and promoting health and safety and should be implemented by both the race organisers and the cyclists.

  14. Another award-winning year for CERN’s apprenticeship training programme

    CERN Document Server

    Anne Gentil-Beccot

    2015-01-01

    CERN has a long tradition of training apprentices. The Organization’s apprenticeship programme, which is based on the Swiss apprenticeship system, dates back to 1965. Since then, over 200 apprentices have been trained at CERN. Each year, seven or eight apprentice electricians, library assistants and physics laboratory technicians qualify after three or four years of training, depending on the job.   UIG prize ceremony 2014: Angelina Bakker (third from right), apprentice physics laboratory technician at CERN, receives her "Certificat fédéral de capacité". On Tuesday, 25 November 2014, CERN was presented with a prize for being the best apprenticeship training scheme provider in 2014. This prize is awarded each year to eight apprenticeship providers active in the different “vocational categories” in the canton of Geneva. The prizes are awarded by the Geneva Department of Public Education, Culture and Sport (DIP)...

  15. Motorcycle Mechanic: Apprenticeship Course Outline. Apprenticeship and Industry Training. 4912

    Science.gov (United States)

    Alberta Enterprise and Advanced Education, 2012

    2012-01-01

    The graduate of the Motorcycle Mechanic apprenticeship program is a certified journeyperson who will be able to: (1) repair and maintain motorcycles and ATVs which are powered with internal combustion engines; (2) comprehend work orders, technical bulletins and estimates, and relate the information to the job at hand; (3) interpret warranty policy…

  16. Baker: Apprenticeship Course Outline. Apprenticeship and Industry Training. 2412

    Science.gov (United States)

    Alberta Advanced Education and Technology, 2012

    2012-01-01

    The graduate of the Baker apprenticeship program is a certified journeyperson who will be able to: (1) prepare and bake all types of high quality yeast raised products in commercial quantities; (2) produce and decorate various types of cakes, cookies and pastries commonly available in commercial bakeries; (3) use efficiently and safely all hand…

  17. Apprenticeship for People with Disabilities.

    Science.gov (United States)

    Clark, Donald M.; Hughes, James H.

    1988-01-01

    The authors report results from a national survey on participation of disabled people in apprenticeship. Results indicate that disabled persons comprise 2 percent of the total apprentice population. Exemplary programs and practices are described. The authors present implications and recommendations drawn from the study results. (CH)

  18. The Returns to Apprenticeship Training

    Science.gov (United States)

    McIntosh, Steven

    2005-01-01

    This paper uses recent data from the UK Labour Force Survey to estimate the wage gains that individuals make on average if they complete an apprenticeship programme. The results suggest gains of around 5-7% for men, but no benefit for women. Further analysis extends the results by considering the returns by age group, by qualification obtained, by…

  19. Pre-Apprenticeships and Their Impact on Apprenticeship Completion and Satisfaction. Occasional Paper

    Science.gov (United States)

    Karmel, Tom; Oliver, Damian

    2011-01-01

    Pre-apprenticeship programs have generated interest recently from government, employers and other stakeholders in the training system as one means of improving apprenticeship completion rates and thereby ameliorating skill shortages. However, there has not yet been any research which establishes that pre-apprenticeship programs actually increase…

  20. Evaluation of Functional Electrical Stimulation to Assist Cycling in Four Adolescents with Spastic Cerebral Palsy

    Directory of Open Access Journals (Sweden)

    Ann Tokay Harrington

    2012-01-01

    Full Text Available Introduction. Adolescents with cerebral palsy (CP often have difficulty participating in exercise at intensities necessary to improve cardiovascular fitness. Functional electrical stimulation- (FES- assisted cycling is proposed as a form of exercise for adolescents with CP. The aims of this paper were to adapt methods and assess the feasibility of applying FES cycling technology in adolescents with CP, determine methods of performing cycling tests in adolescents with CP, and evaluate the immediate effects of FES assistance on cycling performance. Materials/Methods. Four participants (12–14 years old; GMFCS levels III-IV participated in a case-based pilot study of FES-assisted cycling in which bilateral quadriceps muscles were activated using surface electrodes. Cycling cadence, power output, and heart rate were collected. Results. FES-assisted cycling was well tolerated (n=4 and cases are presented demonstrating increased cadence (2–43 rpm, power output (19–70%, and heart rates (4-5% and decreased variability (8–13% in cycling performance when FES was applied, compared to volitional cycling without FES assistance. Some participants (n=2 required the use of an auxiliary hub motor for assistance. Conclusions. FES-assisted cycling is feasible for individuals with CP and may lead to immediate improvements in cycling performance. Future work will examine the potential for long-term fitness gains using this intervention.

  1. An analysis of the practical part of the final apprenticeship examinations at a particular apprenticeship school

    OpenAIRE

    Chvátal, Ivan

    2013-01-01

    Bachelor thesis named "An analysis of the practical part of the final apprenticeship examinations at a particular apprenticeship school" deals with the pros and cons of final exams according to the common final examinations in the context of current labor market demands. Author compares progress and results of the practical part of final examination in regular and alternate date in 2012 in the field of secondary education of apprenticeship certificate 23-68-H/001Automechan...

  2. THE APPRENTICESHIP SYSTEM1 – AN OVERVIEW

    Directory of Open Access Journals (Sweden)

    DAN ANDA-VERONICA

    2015-12-01

    Full Text Available “Apprenticeship is a combination of on-the-job training (OJT and related classroom instruction under the supervision of a journey-level craft person or trade professional in which workers learn the practical and theoretical aspects of a highly skilled occupation. After completing an apprenticeship programme, the worker's journey-level2 status provides an additional benefit of nationwide mobility at journey level scale”3 . The aim of the present paper is to examine the apprenticeship system in France and other European countries and also in USA.

  3. Modeling and Simulation of a Desiccant Assisted Brayton Refrigeration Cycle

    OpenAIRE

    Nobrega, Carlos E.L.; Sphaier, Leandro Alcoforado

    2012-01-01

    The phase-out of CFCs has shed a new light over natural refrigerants, which have null global warming potentials. Air would be a natural choice, and although the Brayton cycle usually exhibits a lower coefficient of performance when compared to vapor-compression systems of same capacity, it has been considered in applications other than aircraft cooling. These include gas separation, food processing and preservation, refrigerated containers and train air-conditioning. Price perspectives in the...

  4. Hats off to CERN's Master of Apprenticeships!

    CERN Multimedia

    2004-01-01

    Roland Gay of the HR Department (at right) recently received a special diploma from the Geneva Industrial Union (UIG). Presented by Carlo Lamprecht, Head of the Department of Economy, Employment and External Affairs of the State of Geneva, the diploma was awarded in recognition of the 199 CERN apprentices Roland has guided through the Certificat Fédéral de Capacité (CFC), an end-of-apprenticeship certificate awarded by the Cantonal authorities. Roland will be retiring in December 2004 after 37 years of service, 32 of which he spent in the role of apprenticeship supervisor.

  5. The assisted 6-minute cycling test to assess endurance in children with a neuromuscular disorder

    NARCIS (Netherlands)

    Jansen, M.; Jong, M. de; Coes, H.M.; Eggermont, F.; Alfen, N. van; Groot, I.J. de

    2012-01-01

    Introduction: For late- or non-ambulant children with a neuromuscular disorder no suitable endurance tests are currently available. We developed the assisted 6-minute cycling test (A6MCT) for the legs and arms and investigated its psychometric properties in healthy boys and boys with Duchenne muscul

  6. Electrically assisted cycling: A new mode for meeting physical activity guidelines?

    NARCIS (Netherlands)

    Simons, M.; Es, E. van; Hendriksen, I.

    2009-01-01

    PURPOSE: The purpose of this study was to assess the potential of the electrically assisted bicycle (EAB) as a novel tool for meeting the physical activity guidelines in terms of intensity. METHODS: Twelve habitually active adult subjects were requested to cycle a track of 4.3 km at an intensity the

  7. Musical Growth through a Singing Apprenticeship.

    Science.gov (United States)

    Merrill, James D.

    2002-01-01

    Discusses the importance of developing second grade student listening, singing, and composing skills. Explores the second-grade singing apprenticeship where students can sing alone, as a group, or listen to other groups. Focuses on teaching singing skills and allowing students to experiment with music. (CMK)

  8. Apprenticeships Should Work for Women Too!

    Science.gov (United States)

    Simon, Linda; Clarke, Kira

    2016-01-01

    Purpose: The purpose of this paper is to explore some of the issues affecting successful employment outcomes for young women in male-dominated careers, focusing on those generally accessed via a traditional Australian apprenticeship model. Current patterns of participation in trades-based fields of education and training reinforce the highly…

  9. Modern Apprenticeships in English Professional Football

    Science.gov (United States)

    Monk, Des; Olsson, Cliff

    2006-01-01

    Purpose: This paper will examine the two year modern apprenticeship undertaken by trainees in the English professional football industry. Design/methodology/approach: Representatives of seven clubs were interviewed in the summer of 2005; all of them were responsible for youth development in their club. These interviews were the first of what will…

  10. Apprenticeship at the Academy of Music

    Science.gov (United States)

    Nielsen, Klaus

    2006-01-01

    Inspired by studies of apprenticeship and theories of situated learning, this study argues that learning should be understood in relation to ongoing social practice. Using interview material and participant observation studying piano students' learning at the Academy of Music in Aarhus, it describes how transparency and access to the music culture…

  11. The Skill Development Processes of Apprenticeship.

    Science.gov (United States)

    Wolek, Francis W.

    1999-01-01

    Case studies of apprenticeship in the Japanese tea ceremony, traditional crafts, and strategic thinking illustrate novices' growth in internal knowledge through reflective practice of skilled processes. As skilled experts, adult educators are engaged in continually improving the skilled processes they model. (SK)

  12. Comparison of kinetics, kinematics, and electromyography during single-leg assisted and unassisted cycling.

    Science.gov (United States)

    Bini, Rodrigo R; Jacques, Tiago C; Lanferdini, Fábio J; Vaz, Marco A

    2015-06-01

    To use single-leg cycling training for varying populations, it is important to understand whether a counterweight attached to the contralateral crank during single-leg cycling drills replicates the effects of the opposite leg in the ipsilateral leg. Therefore, we compared single-leg assisted cycling using a counterweight on the contralateral crank for joint kinetics, kinematics, and lower-limb muscle activation. Fourteen healthy nonathletes performed 2 bilateral cycling trials (240 ± 23 W and 90 ± 2 rpm) and 2 single-leg trials (120 ± 11 W and 90 ± 2 rpm) for measurements of pedal force, joint kinematics, and muscle activation of their right lower limb. For 1 single-leg trial, a custom-made adaptor was used to attach 10 kg of weight to the contralateral leg. Total force applied on the pedal, pedal force effectiveness, the mean joint angles and range of motion, mechanical work at the crank, hip, knee, and ankle joints, electromyography, pedaling cadence, and right crank mechanical work were assessed. Biceps femoris (87%), vastus lateralis (15%), rectus femoris (57%), tibialis anterior (57%), and gastrocnemius medialis (12%) activations were larger in the single-leg assisted trial compared with the bilateral trial. Lower total pedal force (17%) and increased index of effectiveness (16%) also indicate mechanical differences in single-leg cycling using a counterweight on the contralateral crank than conventional bilateral cycling. Single-leg assisted training should be used with caution because of potential differences in muscle recruitment and pedaling kinetics compared with bilateral cycling.

  13. Does Doing an Apprenticeship Pay Off? Evidence from Ghana

    OpenAIRE

    Monk, Courtney; Sandefur, Justin; Teal, Francis

    2008-01-01

    In Ghana there is a highly developed apprenticeship system where young men and women undertake sector-specific private training, which yields skills used primarily in the informal sector. In this paper we use a 2006 urban based household survey with detailed questions on the background, training and earnings of workers in both wage and self-employment to ask whether apprenticeship pays off. We show that apprenticeship is by far the most important institution providing training and is undertak...

  14. Pre-Apprenticeships in Three Key Trades. Support Document

    Science.gov (United States)

    Dumbrell, Tom; Smith, Erica

    2007-01-01

    This report looks at whether pre-apprenticeships increase the potential supply of tradespeople, with a special focus on electrotechnology, automotive and engineering students. It found that pre-apprenticeships have been used in Australia for many years and are widely regarded as a valuable strategy for increasing the supply and quality of…

  15. Apprenticeship as a Mode of Learning and Model of Education

    Science.gov (United States)

    Billett, Stephen

    2016-01-01

    Purpose: Apprenticeships are now usually seen as a model of education focused on occupational preparation, albeit manifested in different ways across nation states. However, throughout human history, the majority of occupational preparation has been premised upon apprenticeship as a mode of learning. That is, a preparation arising mainly through…

  16. Apprenticeships and Traineeships in the Downturn. Occasional Paper

    Science.gov (United States)

    Karmel, Tom; Misko, Josie

    2009-01-01

    Apprenticeships have a very long history in Australia, building on the traditions of the medieval guilds. The essence of the apprenticeship is the contract of training--a legal contract between an individual, an employer and a training provider. The defining characteristic is the combination of employment and training. The purpose of this paper is…

  17. Building a Strong Foundation: Apprenticeships Provide Earning, Learning Opportunities

    Science.gov (United States)

    Finkel, Ed

    2016-01-01

    Partnerships between community colleges and employers to create apprenticeships have been around for decades. These traditionally have covered fields like the building trades--electrical, construction and others--as well as heavy manufacturing like the automobile industry. Inspired partly by a new federal apprenticeship consortium--and $175…

  18. Heavy Equipment Technician: Apprenticeship Course Outline. Apprenticeship and Industry Training. 1912

    Science.gov (United States)

    Alberta Advanced Education and Technology, 2012

    2012-01-01

    The graduate of the Heavy Equipment Technician apprenticeship program is a certified journeyperson who will be able to: (1) diagnose repair, and maintain by skills and knowledge gained through training and experience any of the working parts of diesel engines as well as the various components of mobile industrial equipment; (2) use, competently,…

  19. Outdoor Power Equipment Technician: Apprenticeship Course Outline. Apprenticeship and Industry Training. 5111.1

    Science.gov (United States)

    Alberta Advanced Education and Technology, 2011

    2011-01-01

    The graduate of the Outdoor Power Equipment Technician apprenticeship program is a certified journeyperson who will be able to: (1) supervise, train and coach apprentices; (2) service, maintain, repair and rebuild outdoor power equipment and outdoor power equipment accessories; (3) communicate clearly with customers, staff, suppliers, as required;…

  20. Landscape Gardener: Apprenticeship Course Outline. Apprenticeship and Industry Training. 4711.1

    Science.gov (United States)

    Alberta Advanced Education and Technology, 2011

    2011-01-01

    The graduate of the Landscape Gardener apprenticeship program is a certified journeyperson who will be able: (1) apply the principles and processes of landscape design and construction; (2) construct and install landscape structures and other accessories of various materials; (3) estimate and handle orders of plant and related materials; (4) plan…

  1. Cabinetmaker: Apprenticeship Course Outline. Apprenticeship and Industry Training. 3610.3

    Science.gov (United States)

    Alberta Advanced Education and Technology, 2010

    2010-01-01

    The graduate of the Cabinetmaker apprenticeship program is a certified journeyperson who will: (1)know the characteristics of wood, wood products or substitutes used in industrial woodworking; (2) be proficient with the safe use of hand tools, powered machines and equipment used in industrial woodworking; (3) read and interpret plans and…

  2. Refrigeration and Air Conditioning Mechanic: Apprenticeship Course Outline. Apprenticeship and Industry Training. 1411.2

    Science.gov (United States)

    Alberta Advanced Education and Technology, 2011

    2011-01-01

    The graduate of the Refrigeration and Air Conditioning Mechanic apprenticeship training is a journeyman who will: (1) supervise, train and coach apprentices; (2) use and maintain hand and power tools to the standards of competency and safety required in the trade; (3) have a thorough knowledge of the principle components of refrigeration systems,…

  3. Transport Refrigeration Technician: Apprenticeship Course Outline. Apprenticeship and Industry Training. 4112

    Science.gov (United States)

    Alberta Advanced Education and Technology, 2012

    2012-01-01

    The graduate of the Transport Refrigeration Technician apprenticeship program is a certified journeyperson who will be able: (1) to diagnose repair, maintain and operate transport refrigeration equipment used to heat or cool the load as well as of diesel engines, APUs and other prime movers; (2) to use tools and equipment in order to carry out…

  4. Natural Gas Compression Technician: Apprenticeship Course Outline. Apprenticeship and Industry Training. 5311.1

    Science.gov (United States)

    Alberta Advanced Education and Technology, 2011

    2011-01-01

    The graduate of the Natural Gas Compression Technician apprenticeship program is a certified journeyperson who will be able to install, commission, maintain and repair equipment used to gather store and transmit natural gas. Advanced Education and Technology has prepared this course outline in partnership with the Natural Gas Compression…

  5. Automotive Service Technician: Apprenticeship Course Outline. Apprenticeship and Industry Training. 0912

    Science.gov (United States)

    Alberta Advanced Education and Technology, 2012

    2012-01-01

    The graduate of the Automotive Service Technician apprenticeship program is a certified journeyperson who will be able to: (1) repair, maintain and overhaul or modify a motor vehicle; (2) comprehend work orders, technical bulletins and estimates, and relate the information to the job at hand; (3) interpret warranty policy in terms of service…

  6. Apprenticeship training in Denmark : the impacts of subsidies

    DEFF Research Database (Denmark)

    Westergård-Nielsen, Niels Chr.; Rasmussen, Anders Rue

    1997-01-01

    For years, Denmark has maintained and developed its apprenticeship system which is comparable to the German system. Today, about 40% of the youth cohorts get apprenticeship training. The paper describes the basic functioning of the labour market of apprentices. It is initially shown how the wage...... that the subsidies have had an impact on the supply of places in some industries while others are not affected at all. The total effect has been compared to the costs and it is found that the total costs per extra apprenticeship is about 54,000 DKK. Finally, the results are used to simulate the effects of changing...

  7. The Effects of Assisted Cycling Therapy (Act) and Voluntary Cycling on Reaction Time and Measures of Executive Function in Adolescents with Down Syndrome

    Science.gov (United States)

    Ringenbach, S. D. R.; Holzapfel, S. D.; Mulvey, G. M.; Jimenez, A.; Benson, A.; Richter, M.

    2016-01-01

    Background: Reports of positive effects of aerobic exercise on cognitive function in persons with Down syndrome are extremely limited. However, a novel exercise intervention, termed assisted cycling therapy (ACT), has resulted in acutely improved cognitive planning ability and reaction times as well as improved cognitive planning after 8 weeks of…

  8. Apprenticeship effect on a neural network

    International Nuclear Information System (INIS)

    Utilization of a neural network for determining the value of the impact parameter in heavy ion reactions is a two stage process: a apprenticeship stage followed by a utilization stage. During the first stage one determines the network parameters by means of a trial game for which the inputs and outputs are known. To realize the trial game a numerical simulation code was used. In order to estimate the biases of this procedure we generated trial games by resorting to two different models: a transport dynamical model (QMD) coupled to a deexcitation code (GEMINI) and a event generator based on a statistical approach (EUGENE). The procedure was applied to determine the impact parameter in 40 Ca + 40 Ca reactions. The effect of the model dependence of the apprenticeship procedure is studied thoroughly. In the two cases the outputs provided by the network are smaller then 7 fm which can be expected in case of complete events. The network trained with QMD gives outputs for input parameters within a larger range of values which is due to the fact that EUGENE does not contain 'Deep Inelastic'

  9. From apprenticeship to higher vocational education in Denmark

    DEFF Research Database (Denmark)

    Jørgensen, Christian Helms

    2016-01-01

    education. The purpose of this article is to examine this problem for apprenticeship in a historical perspective by examining what has been done to solve it, and why the measures taken have not been very successful. The article builds on a combination of policy studies, an analysis of the linkages between....... Thirdly, it examines the historical development of higher vocational education as an educational sub-system, which includes an analysis of the academisation of the applied engineering programme. Lastly, it examines the transition rates from apprenticeship to higher education during the last decades. This......Upper secondary vocational education in Denmark is based on the apprenticeship model, which is recognised as a valuable route to employment for young people who are not aiming for higher education. However, the apprenticeship model has a major weakness: it does not provide eligibility for higher...

  10. Finding an apprenticeship: hidden curriculum and social consequences

    OpenAIRE

    Goastellec, Gaële; Ruiz, Guillaume

    2015-01-01

    In Switzerland, the majority of students are oriented toward professional training after compulsory schooling. At this stage, one of the biggest challenges for them is to find an apprenticeship position. Matching supply and demand is a complex process that not only excludes some students from having direct access to professional training but also forces them to make early choices regarding their future sector of employment. So, how does one find an apprenticeship? And what do the students’ de...

  11. The Southampton Skills Development Zone apprenticeship: research report

    OpenAIRE

    Fuller, Alison; Rizvi, Sadaf

    2012-01-01

    1. An apprenticeship scheme developed by SSDZ has been an innovative attempt by the four public sector employers represented on the SSDZ Board to work with partners to create new training and employment opportunities for local unemployed 18 to 25 year olds. A team from the LLAKES research centre undertook research into the scheme from August 2010 to December 2011. The research aims included: • To develop an evidence base about the apprenticeship scheme, with information on the numbers sta...

  12. Mobility across firms and occupations among graduates from apprenticeship

    OpenAIRE

    Fitzenberger, Bernd; Licklederer, Stefanie; Zwiener, Hanna

    2015-01-01

    Distinguishing carefully between mobility across firms and across occupations, this study provides causal estimates of the wage effects of mobility among graduates from apprenticeship in Germany. Our instrumental variables approach exploits variation in regional labor market characteristics. Pure firm changes and occupation-and-job changes after graduation from apprenticeship result in average wage losses, whereas an occupation change within the training firm results in persistent wage gains....

  13. The impact of laser-assisted hatching on the outcome of frozen human embryo transfer cycles.

    Science.gov (United States)

    Kanyo, Katalin; Zeke, Jozsef; Kriston, Rita; Szücs, Zoltan; Cseh, Sandor; Somoskoi, Bence; Konc, Janos

    2016-10-01

    Biochemical modifications of zona pellucida (ZP) result in zona hardening. Zona hardening (ZH) is induced by several factors such as advancing maternal age, in vitro culture conditions and cryopreservation and adversely effects implantation. The objective of the clinical study was to determine whether or not laser-assisted hatching (LAH) applied on day 3 frozen embryos improves the outcome of frozen embryo transfer (FET) cycles in patients with recurrent implantation failure and/or advanced female age. In total, 413 patients of different ages with recurrent implantation failure (maximum three cycles) were involved into the study. Patients were allocated randomly into LAH and control groups. On the day of FET, after thawing and just before FET, the ZP was thinned using a laser system. In the control group no treatment was applied on frozen embryo before transfer. The main outcome measures were clinical pregnancy rate. Overall, the results indicate a tendency that LAH increased (P = 0.08) clinical pregnancy. However, for patients older than 37 years, LAH increased pregnancy rates significantly (P = 0.03). In the LAH and control groups, the age of patients and the number of transferred embryos influenced pregnancy rates (P = 0.01). For patients older than 37 years, no effect of number of transferred embryos was detected (P = 0.14). The incidence of multiple pregnancies also increased in the LAH group (P = 0.01). In conclusion, in older woman, to overcome the negative effect of zona hardening, LAH could be performed on frozen embryos as a routine strategy before FET in frozen cycles in order to increase the possibility of pregnancy formation.

  14. Systematic Characterization of Cell Cycle Phase-dependent Protein Dynamics and Pathway Activities by High-content Microscopy-assisted Cell Cycle Phenotyping

    Institute of Scientific and Technical Information of China (English)

    Christopher Bruhn; Torsten Kroll; Zhao-Qi Wang

    2014-01-01

    Cell cycle progression is coordinated with metabolism, signaling and other complex cel-lular functions. The investigation of cellular processes in a cell cycle stage-dependent manner is often the subject of modern molecular and cell biological research. Cell cycle synchronization and immunostaining of cell cycle markers facilitate such analysis, but are limited in use due to unphysiological experimental stress, cell type dependence and often low flexibility. Here, we describe high-content microscopy-assisted cell cycle phenotyping (hiMAC), which integrates high-resolution cell cycle profiling of asynchronous cell populations with immunofluorescence microscopy. hiMAC is compatible with cell types from any species and allows for statistically pow-erful, unbiased, simultaneous analysis of protein interactions, modifications and subcellular locali-zation at all cell cycle stages within a single sample. For illustration, we provide a hiMAC analysis pipeline tailored to study DNA damage response and genomic instability using a 3–4-day protocol, which can be adjusted to any other cell cycle stage-dependent analysis.

  15. Apprenticeships at CERN: a host of awards

    CERN Multimedia

    2009-01-01

    This year again, two CERN apprentices have received awards at the end of their training. CERN’s broad range of technical skills means that it can provide training in a wide variety of trades and professions. Denis Fernier receives congratulations from Pierre-François Unger, Counsel state of the canton of Geneva in charge of the department of economics and health. Denis Fernier and Coralie Husi (right) at the prize-giving ceremony of the Union Industrielle de Genève.Every year, CERN hosts six technical apprentices for a four-year period: three electronics technicians and three physics lab technicians. And every year, at the end of their apprenticeships, one or more of them receives an award for being among the best apprentices in Geneva. On 23 September, two young apprentices were honoured by the Union industrielle genevoise (UIG) on passing their exams: Coralie Husi, a physics lab apprentice...

  16. CERN's technical apprentices during their apprenticeships

    CERN Multimedia

    Adrian Billet

    2004-01-01

    CERN starting training apprentices in 1966 at the request of the Geneva authorities. The programme was consolidated with the opening of the training centre in 1971. In recent years CERN has taken on seven new technical apprentices each year (four in electronics, three in physics laboratory work), plus one or two administrative apprentices, such that there always are around 30 apprentices in total at CERN. The programme is highly regarded in Geneva by the authorities, industry, schools and young people, and contributes very positively to CERN's local image. Since the beginning 160 young people have now successfully completed their apprenticeships at CERN. Unlike some other employers, as a general rule CERN does not take on its ex-apprentices as staff; on completing their years at CERN the apprentices usually go on to higher education or are sought after by other employers.

  17. Intergenerational Implications of Immigration Policy on Apprenticeship Training and the Educational Distribution in Canada

    OpenAIRE

    James Ted McDonald; Christopher Worswick

    2013-01-01

    Using the 2006 Canadian census, we analyze the incidence and returns to apprenticeship credentials for immigrant and native-born men in Canada. Both immigrant men who arrived in Canada as children and first-generation Canadian-born men are more likely to have completed an apprenticeship if their father's generation of immigrant men in Canada (from the same source country) have a high probability of apprenticeship completion. The return to an apprenticeship (relative to high school only educat...

  18. Finding an apprenticeship: hidden curriculum and social consequences.

    Science.gov (United States)

    Goastellec, Gaële; Ruiz, Guillaume

    2015-01-01

    In Switzerland, the majority of students are oriented toward professional training after compulsory schooling. At this stage, one of the biggest challenges for them is to find an apprenticeship position. Matching supply and demand is a complex process that not only excludes some students from having direct access to professional training but also forces them to make early choices regarding their future sector of employment. So, how does one find an apprenticeship? And what do the students' descriptions of their search for apprenticeships reveal about the institutional determinants of social inequalities at play in the system? Based on 29 interviews conducted in 2014 with 23 apprentices and 6 recruiters in the Canton of Vaud, this article interrogates how the dimensions of educational and social trajectories combine to affect access to apprenticeships and are accentuated by recruiters using a "hidden curriculum" during the recruitment process. A hidden curriculum consists of knowledge and skills not taught by the educational institution but which appear decisive in obtaining an apprenticeship. By analyzing the contrasting experiences of students in their search for an apprenticeship, we identify four types of trajectories that explain different types of school-to-apprenticeship transitions. We show how these determinants are reinforced by the "hidden curriculum" of recruitment based on the soft skills of feeling, autonomy, anticipation, and reflexivity that are assessed in the context of recruitment interactions. The discussion section debates how the criteria that appear to be used to identify the "right apprentice" tend to (re)produce inequalities between students. This not only depends on their academic results but also on their social and cultural skills, their ability to anticipate their choices and, more widely, their ability to be a subject in their recruitment search. "The Subject is neither the individual, nor the self, but the work through which an

  19. Finding an apprenticeship: The hidden curriculum and its social consequences

    Directory of Open Access Journals (Sweden)

    Gaele eGoastellec

    2015-09-01

    Full Text Available In Switzerland, the majority of students are oriented towards professional training after compulsory schooling. At this stage, one of the biggest challenges for them is to find an apprenticeship position. Matching supply and demand is a complex process that not only excludes some students from having direct access to professional training but also forces them to make early choices regarding their future sector of employment. So, how does one find an apprenticeship? And what do the students’ descriptions of their search for apprenticeships reveal about the institutional determinants of social inequalities at play in the system?Based on 29 interviews conducted in 2014 with 23 apprentices and 6 recruiters in the Canton of Vaud, this article interrogates how the dimensions of educational and social trajectories combine to affect access to apprenticeships and are accentuated by recruiters using a hidden curriculum during the recruitment process. A hidden curriculum consists of knowledge and skills not taught by the educational institution but which appear decisive in obtaining an apprenticeship. By analysing the contrasting experiences of students in their search for an apprenticeship, we identify four types of trajectories that explain different types of school-to-apprenticeship transitions. We show how these determinants are reinforced by the hidden curriculum of recruitment based on the soft skills of feeling, autonomy, anticipation and reflexivity that are assessed in the context of recruitment interactions. The discussion section debates how the criteria that appear to be used to identify the right apprentice tend to (reproduce inequalities between students. This not only depends on their academic results but also on their social and cultural skills, their ability to anticipate their choices and, more widely, their ability to be a subject in their recruitment search. The Subject is neither the individual, nor the self, but the work through

  20. Computer assisted semen analysis for quantification of motion characteristics of bull sperm during cryopreservation cycle

    Directory of Open Access Journals (Sweden)

    M. N. Sundararaman

    Full Text Available Aim: The study was undertaken to quantify and to analyze the changes in the motion characteristics of bull spermatozoa during various stages of cryopreservation cycle. Materials and Methods: Using computer assisted semen analysis (CASA technique, 26 ejaculates, collected from two Jersey bulls were analyzed for motility, head behaviour and swimming pattern of spermatozoa on dilution, pre-freeze and post-thaw stages of cryopreservation. French straw technique was employed for deep-freezing of semen using liquid nitrogen. Results: Equilibration of diluted semen at 5 C has significantly (P< 0.01 reduced sperm motility, progressive motility, path velocity, and progressive velocity. Beat cross frequency was also affected significantly (P<0.05 by equilibration. Freezing and thawing processes drastically affected all the motility, velocity and head behaviour characteristics (P< 0.01. Conclusion: CASA facilitate objective evaluation sperm motion characteristics. Adoption of CASA technique has the potential for improvements in evaluation of semen thereby the quality of frozen semen for fertility can be enhanced. [Vet World 2012; 5(12.000: 723-726

  1. Pre-Apprenticeships in Australia: Differing Orientations and Their Policy Implications

    Science.gov (United States)

    Dumbrell, Tom; Smith, Erica

    2013-01-01

    Little has been published in the Australian vocational education and training (VET) literature on the topic of pre-apprenticeships, which are a loose type of preparatory courses for apprenticeships available in some trades. Nevertheless, pre-apprenticeships have been in existence for several decades. With continuing concern over skill shortages in…

  2. Maintaining the Momentum. Alberta Apprenticeship and Industry Training Board, 2002-2003 Annual Report.

    Science.gov (United States)

    Alberta Learning, Edmonton. Apprenticeship and Industry Training.

    Alberta's apprenticeship system offers training in 50 designated trades and 4 designated occupations and includes 40,398 registered apprentices and 11,1984 employers. The main components of Alberta's apprenticeship and training system are as follows: (1) a network of local and provincial apprenticeship committees in the designated occupations; (2)…

  3. National Apprenticeship Standards for Cement Masonry, Asphalt, and Composition Trade. Revised.

    Science.gov (United States)

    Employment and Training Administration (DOL), Washington, DC. Bureau of Apprenticeship and Training.

    These national standards are designed to guide local joint apprenticeship and training committees in establishing local apprenticeship programs to train individuals seeking to become skilled in the cement masonry, asphalt, and composition trade. Covered in the individual sections are the following topics: provisions of the apprenticeship standards…

  4. Promoting and Expanding Apprenticeship: A Strategic Plan for Preparing America's Work Force of Tomorrow (Phase I).

    Science.gov (United States)

    Employment and Training Administration (DOL), Washington, DC. Office of Work-Based Learning.

    A strategic plan to strengthen and expand the nation's existing apprenticeship system contains three components: apprenticeship promotion and marketing, national registration and tracking system, and quality. Efforts to promote apprenticeship must involve a two-pronged strategy that seeks both to develop new programs and expose potential program…

  5. The National Farm Worker Ministry as Freirian Apprenticeship

    Science.gov (United States)

    Nilsen, Ryan

    2014-01-01

    In "Education, liberation and the church," Paulo Freire uses the metaphor of "apprenticeship" to describe a form of liberative education for people of faith who begin to discover the ways in which they benefit from the systemic oppression of other human beings. As depicted in ten oral history interviews conducted with the…

  6. Wilhelm Meister's Apprenticeship: The Paradox of a Liberating Pedagogy.

    Science.gov (United States)

    Roosevelt, Jinx

    1980-01-01

    In analyzing the educational sequences of Goethe's novel, "Wilhelm Meister's Apprenticeship," the author suggests ways that this literary genre, the bildungsroman, which portrays an individual's development through a series of educational encounters, can provide teacher education students with material for studying the riddlelike quality of the…

  7. Welding. Pre-Apprenticeship Phase 1 Training. Instructor's Guide.

    Science.gov (United States)

    Lane Community Coll., Eugene, OR.

    This instructor's guide accompanies the self-paced student training modules on welding, three of which are available separately as CE 032 889-891. Introductory materials include a description of the components of the pre-apprenticeship project, a discussion of the teacher's role in conducting the course, and scope and contents of the four phases…

  8. Dissension and Distress in a Cognitive Apprenticeship in Reading.

    Science.gov (United States)

    Tisdale, Kit

    2001-01-01

    Explores and theorizes a foundering, unfriendly cognitive apprenticeship in reading between a college student and a child. Explores assumptions of benevolence in social constructivist pedagogical practices. Presents and discusses a model incorporating relevant issues such as communication, power, trust, identities, and relevance within an…

  9. National Apprenticeship Standards for the Retail Meatcutting Industry. Revised.

    Science.gov (United States)

    Employment and Training Administration (DOL), Washington, DC. Bureau of Apprenticeship and Training.

    These national standards are intended to serve as a guide for the establishment of thorough and complete apprenticeship programs to produce trained retail meatcutters to carry on the tradition of quality in the retail meatcutting industry. Covered in the individual sections are the following topics: definitions, the National Joint Apprenticeship…

  10. From Apprenticeship to Higher Education: Navigating the Credential Landscape

    Science.gov (United States)

    Dismore, Harriet

    2014-01-01

    The credential landscape of vocational and higher education in the UK has expanded in recent years, alongside a rise in the number of students undertaking qualifications and a steady increase in tuition fees. The transition from an apprenticeship to higher education is one example of the progression from vocational to higher education. However,…

  11. National Apprenticeship and Training Standards for Vending Machine Mechanics.

    Science.gov (United States)

    Employment and Training Administration (DOL), Washington, DC.

    This booklet contains national standards for apprentices in vending machine mechanics. The main topic of the booklet, Provisions of Standards, includes the following: definitions of terms used in the booklet, apprenticeship qualifications, a statement on equal opportunity employment, explanation of probation, hours of work, credit for previous…

  12. Solar-assisted dual-effect adsorption cycle for the production of cooling effect and potable water

    KAUST Repository

    Ng, K. C.

    2009-05-17

    This paper investigates the performance of a solar-assisted adsorption (AD) cycle which produces two useful effects, namely cooling and desalination, with only a low-temperature heat input such as thermal energy from solar collectors. Heat sources varying from 65 to 80°C can be obtained from 215-m2 flat plate-type solar collectors to regenerate the proposed silica gel-water-based AD cycle. In this paper, both mathematical modelling and experimental results from the AD cycle operation are discussed, in terms of two key parameters, namely specific daily water production (SDWP) and specific cooling capacity (SCC). The experimental results show that the AD cycle is capable of producing chilled water at 7 to 10°C with varying SCC range of 25-35 Rton/tonne of silica gel. Simultaneously, the AD cycle produces a SDWP of 3-5 m3 per tonne of silica gel per day, rendering it as a dual-effect machine that has an overall conversion or performance ratio of 0.8-1.1. © The Author 2009. Published by Oxford University Press. All rights reserved.

  13. Formation of Apprenticeships in the Swedish Education System: Different Stakeholder Perspectives

    Directory of Open Access Journals (Sweden)

    Ingela Andersson

    2015-04-01

    Full Text Available The article explores the major features of the Swedish Government’s new initiative - a school based Upper Secondary Apprenticeship model. The analyses are guided by activity theory. The analysed texts are part of the parliamentary reformmaking process of the 2011 Upper Secondary School reform. The analyses unfold how the Government, the Swedish Trade Union Confederation (LO, and the Confederation of Swedish Enterprise (SN construct Upper Secondary Apprenticeship as an activity in the 21st century. The conclusion highlights how three traditional aspects of Swedish initial vocational education and training (IVET collide in the formation of Upper Secondary Apprenticeship – a curriculum of labour market based apprenticeships, a curriculum of school based IVET, and ill-defined curriculums of school based apprenticeships. The emerging Upper Secondary Apprenticeship curriculum foreshadows multifaceted educational trajectories where the learning targets, and not the responsibility for the student’s learning are displaced from the school to the workplace setting.

  14. ‘Give courage to the ladies’: expansive apprenticeship for women in rural Malawi

    OpenAIRE

    Safford, Kimberly; Cooper, Deborah; Wolfenden, Freda; Chitsulo, Joyce

    2013-01-01

    Apprenticeship in developed and industrialised nations is increasingly understood as a theory of learning which connects workplace activity and formal study. The concept of ‘expansive apprenticeship’ defines frameworks for workforce development where participants acquire knowledge and skills which will help them in the future as well as in their current roles, whilst ‘restrictive’ apprenticeships limit opportunities for wider, lifelong learning. In developing nations apprenticeship is a tradi...

  15. Bifurcation structure and noise assisted transitions in the Pleistocene glacial cycles

    DEFF Research Database (Denmark)

    Ditlevsen, Peter

    2009-01-01

    history. It indicates the dynamical origin of the mid-Pleistocene transition from the "41 ka world'' to the "100 ka world.'' The dominant forcing in the latter is still the 41 ka obliquity cycle, but the bifurcation structure of the climate system is changed. The model suggests that transitions between......The glacial cycles are attributed to the climatic response of the orbital changes in the irradiance to the Earth. These changes in the forcing are too small to explain the observed climate variations as simple linear responses. Nonlinear amplifications of the orbital forcing are necessary...... to account for the glacial cycles. Here an empirical model of the nonlinear response is presented. From the model it is possible to assess the role of stochastic noise in comparison to the deterministic orbital forcing of the ice ages. The model is based on the bifurcation structure derived from the climate...

  16. Operating Systems with Blended Extreme Apprenticeship: What Are Students’ Perceptions?

    Directory of Open Access Journals (Sweden)

    Gabriella Dodero

    2015-02-01

    Full Text Available Extreme apprenticeship, an emerging learning methodology, has been used in a blended fashion for teaching a technical subject: bash scripting for operating systems. Online learning was first supported with the Moodle platform, and then enhanced with playful videos. How did students perceive learning in such a manner? This paper reports on the design of the blended learning experience for operating systems, and then focusses on the evaluation of learners’ perceptions of it.

  17. Operating Systems with Blended Extreme Apprenticeship: What Are Students’ Perceptions?

    OpenAIRE

    Gabriella Dodero; Rosella Gennari

    2015-01-01

    Extreme apprenticeship, an emerging learning methodology, has been used in a blended fashion for teaching a technical subject: bash scripting for operating systems. Online learning was first supported with the Moodle platform, and then enhanced with playful videos. How did students perceive learning in such a manner? This paper reports on the design of the blended learning experience for operating systems, and then focusses on the evaluation of learners’ perceptions of it.

  18. Inhibition of progesterone secretion by oestradiol administered in the luteal phase of assisted conception cycles.

    Science.gov (United States)

    Tay, P Y; Lenton, E A

    2003-06-01

    A prospective randomised study was done to assess the effect of supplemental oestradiol in addition to progesterone on the luteal steroid profiles and pregnancy outcome in stimulated cycles with and without pituitary down regulation. Women undergoing stimulated cycle IVF with GnRH-a and FSH (Group A, n = 63) or stimulated intrauterine insemination using CC and FSH (Group B, n = 55) were studied. These subjects were randomly allocated to receive either 400 mg daily of vaginally administrated Cyclogest (progesterone) alone or in combination with 2 mg daily of oral Oestradiol Valerate (E2V) during the luteal phase. Significant lower concentrations of plasma progesterone were observed in those subjects supplemented with both E2V and progesterone compared to those in whom progesterone only was given during the luteal phase (P process of implantation. PMID:14569738

  19. The Role of Materiality in Apprenticeships: The Case of the Suame Magazine, Kumasi, Ghana

    Science.gov (United States)

    Jaarsma, Thomas; Maat, Harro; Richards, Paul; Wals, Arjen

    2011-01-01

    Although the concept of the apprenticeship seems to be universal, its institutional form and status differ around the world. This article discusses informal apprenticeship training as it occurs among car mechanics in the informal industrial complex of the Suame Magazine, Kumasi, Ghana. Using on-site research and theories of social learning and…

  20. Consistency of Practical and Formal Epistemologies of Science Held by Participants of a Research Apprenticeship

    Science.gov (United States)

    Burgin, Stephen R.; Sadler, Troy D.

    2013-01-01

    The purpose of this research was to examine the consistency between students' practical and formal understandings of scientific epistemologies (also known as nature of science (NOS) understandings) in the context of a research apprenticeship program. Six high school student participants of a residential summer research apprenticeship program…

  1. Traditional Apprenticeship in West Africa: Recent Evidence and Policy Options. Discussion Paper No. 34.

    Science.gov (United States)

    Fluitman, Fred

    Apprenticeship is the main avenue to self-employment in micro-enterprises and thus a cornerstone of informal sector development in West Africa. Survey results for Ibadan, Lome, Dakar, Niamey, and other cities demonstrate that apprenticeship as practiced by informal sector artisans is often very similar from one country to the next. Dropout rates…

  2. Education in Production Processes: Apprenticeship as a Means of Transition from Education to Work.

    Science.gov (United States)

    Boehm, Ullrich

    1996-01-01

    Many developing countries have tried, with varying results, to adopt the German Dual System of apprenticeship plus vocational training. Country-specific cultural, economic, and social factors affect success. Promoting apprenticeship and adapting the dual system to local structures such as micro-enterprises may present an alternative to vocational…

  3. Apprenticeship in Latin America: The INACAP Program in Chile. A Case Study. Occasional Paper #6.

    Science.gov (United States)

    Corvalan-Vasquez, Oscar E.

    The development of apprenticeship programs in several Latin American countries was investigated with a focus on the results of an industrial apprenticeship program in Santiago, Chile. The program studied was the Instituto Nacional de Capacitacion Profesional (INACAP), the national vocational training institute of Chile. The purpose of the study…

  4. "Give Courage to the Ladies:" Expansive Apprenticeship for Women in Rural Malawi

    Science.gov (United States)

    Safford, Kimberly; Cooper, Deborah; Wolfenden, Freda; Chitsulo, Joyce

    2013-01-01

    Apprenticeship in developed and industrialised nations is increasingly understood and practised as learning which connects workplace activity and formal study. The concept of "expansive apprenticeship" defines frameworks for workforce development where participants acquire knowledge and skills which will help them in the future as well…

  5. Reading Together: A Summer Family Reading Apprenticeship Program for Delayed and Novice Readers

    Science.gov (United States)

    Knapp, Nancy Flanagan

    2016-01-01

    The Reading Apprenticeship is an intervention that has been shown in previous studies to increase struggling readers, tested reading achievement by 8 to 9 months during a 12 week, in-school program. This article reports on the first study of the Reading Apprenticeship method conducted in the summer using parents, rather than supervised volunteers,…

  6. Apprenticeship, Vocational Training, and Early Labor Market Outcomes--Evidence from East and West Germany

    Science.gov (United States)

    Riphahn, Regina T.; Zibrowius, Michael

    2016-01-01

    We study the returns to apprenticeship and vocational training for three early labor market outcomes all measured at age 25 for East and West German youths: non-employment (i.e. unemployment or out of the labor force), permanent fulltime employment, and wages. We find strong positive effects of apprenticeship and vocational training. There are no…

  7. Improvements in manual dexterity relate to improvements in cognitive planning after assisted cycling therapy (ACT) in adolescents with down syndrome.

    Science.gov (United States)

    Holzapfel, Simon D; Ringenbach, Shannon D R; Mulvey, Genna M; Sandoval-Menendez, Amber M; Cook, Megan R; Ganger, Rachel O; Bennett, Kristen

    2015-01-01

    We have previously reported beneficial effects of acute (i.e., single session) Assisted Cycling Therapy (ACT) on manual dexterity and cognitive planning ability in adolescents with Down syndrome (DS). In the present study, we report the chronic effects of eight weeks of ACT, voluntary cycling (VC), and no cycling (NC), on the same measures in adolescents with DS. Participants completed 8 weeks of ACT, VC, or NC. Those in the ACT and VC groups completed 30min sessions three times per week on a stationary bicycle. During ACT, the mechanical motor of the bicycle augmented the cadence to a rate which was on average 79% faster than the voluntary cadence. During VC, the participants pedaled at a self-selected rate. Unimanual dexterity scores as measured with the Purdue Pegboard test (PPT) improved significantly more for the ACT and VC groups compared to the NC group. ACT lead to greater improvements than VC and NC in the assembly sub-test, which is a task that requires more advanced temporal and spatial processing. The ACT group improved significantly more than the VC group and non-significantly more than the NC group in cognitive planning ability as measured by the Tower of London test (ToL). There were also significant correlations between the assembly subtest of the PPT and all measures of the ToL. These correlations were stronger during post-testing than pre-testing. Pre-post changes in the combined PPT score and ToL number of correct moves correlated positively in the ACT group. These results support the efficacy of the salutary effects of ACT on global fine motor function and executive function in DS. Additionally, the performance on complex bimanual dexterity tasks appears to be related to the capacity of cognitive planning ability. This research has important implications for persons with movement deficits that affect activities of daily living. PMID:26280691

  8. Simulation of a solar assisted combined heat pump – Organic rankine cycle system

    International Nuclear Information System (INIS)

    Highlights: • Addition of an ORC to a solar thermal and ground source heat pump system. • Reverse operation of the scroll compressor in ORC mode. • Annual simulations for application in a single-family house at three locations. • By introducing the ORC the net electricity demand is reduced by 1–9%. • Over the lifetime of the system savings can cover additional investments. - Abstract: A novel solar thermal and ground source heat pump system that harnesses the excess heat of the collectors during summer by an Organic Rankine Cycle (ORC) is simulated. For the ORC the heat pump process is reversed. In this case the scroll compressor of the heat pump runs as a scroll expander and the working fluid is condensed in the ground heat exchanger. Compared to a conventional solar thermal system the only additional investments for the combined system are a pump, valves and upgraded controls. The goal of the study is to simulate and optimize such a system. A brief overview of the applied models and the evolutionary algorithm for the optimization is given. A system with 12 m2 of flat plate collectors installed in a single family house is simulated for the locations Ankara, Denver and Bochum. The ORC benefits add up to 20–140 kW h/a, which reduces the net electricity demand of the system by 1–9%. Overall 180–520 € are saved over a period of 20 years, which can be enough to cover the additional investments

  9. Learning Object-Orientation through ICT-mediated Apprenticeship

    DEFF Research Database (Denmark)

    Fjuk, A.; Berge, O.; Bennedsen, J.;

    2004-01-01

    -called person-centered and decentered approaches to apprenticeship learning. Our preliminary analysis indicates that the person-centered approach to apprentice learning has been very successful, while the decentered approach is found to be more problematic when it comes to practice. The reason behind......In this paper, we show how sociocultural theories inform the design of a course in object-oriented programming. An essential learning objective within this philosophy is the programming processes as such. To move toward this learning goal, the course design incorporates a combination of the so...

  10. Techno-economic evaluation of a solar assisted combined heat pump – Organic Rankine Cycle system

    International Nuclear Information System (INIS)

    Highlights: • Addition of an ORC to a solar thermal and ground source heat pump system. • Additional investments comprise only 400 € for a single-family house unit. • Recharging the ground during ORC has negligible impact on the COP of the HP. • Economics studied for application in Bochum, Denver and Ankara; only small benefits. • Use of isobutane instead of R134a would increase the profit of the ORC system. - Abstract: The economic feasibility of the addition of an ORC to a combined solar system coupled to a ground-source heat pump is discussed. The ORC prevents the stagnation of the solar loop and reverses the heat pump cycle. The working fluid is evaporated in the condenser of the heat pump, expanded in the scroll compressor, which becomes a scroll expander, and condensed in the brine heat exchanger. The only additional investments for the ORC system comprise a pump, valves and upgraded controls and are estimated to be 400 € for a single-family-house unit. Flat-plate collectors are the preferred collector type as the higher collector efficiency of evacuated tube collectors does not outweigh the higher costs. The thermal recharging of the ground during ORC has a negligible impact on the COP of the heat pump. However, the recharging leads to less deep boreholes compared to a conventional system. Because of the low investments for the ORC, even small reductions in borehole depth make a significant contribution to the economic feasibility of the system. The addition of the ORC overall generates a small profit of 155 € at Ankara and 74 € at Denver for a rocky soil and a thermally enhanced grout. On the contrary, the conventional solar combisystem coupled to a ground source heat pump was found to be economically unreasonable at all locations. The working fluid isobutane is interesting for future applications because of the lower global warming potential and the smaller saturation pressures compared to R134a. The latter allow for the installation of a

  11. Oxide-assisted crack growth in hold-time low-cycle-fatigue of single-crystal superalloys

    Directory of Open Access Journals (Sweden)

    Suzuki Akane

    2014-01-01

    Full Text Available Compressive hold-time low-cycle fatigue is one of the important damage modes in Ni-based superalloy hot-gas path components. In strain controlled LCF, the compressive hold typically degrades fatigue life significantly due to creep relaxation and the resultant generation of tensile stress upon returning to zero strain. Crack initiation typically occurs on the surface, and therefore, the cracks are covered with layers of oxides. Recent finite element modeling based on experimental observations has indicated that the in-plane compressive stress in the alumina layer formed on the surface of the bond coat assists rumpling and, eventually, leads to initiation of cracks. The stress in the oxide layer continues to assist crack extension by pushing the alumina layer along the crack front during the compressive hold. In-situ measurements of the growth strains of alumina were performed using high energy synchrotron X-rays at Argonne National Lab. Specimens of single-crystal superalloys with and without aluminide coatings were statically pre-oxidized to form a layer of alumina at 1093 and 982 ∘C. For the in-situ synchrotron measurements, the specimens were heated up to the pre-oxidation temperatures with a heater. The alumina layers on both bare and coated specimens show compressive in-plane strains at both temperatures. The oxide strains on the superalloys showed dependency on temperature; on the other hand, the oxide strains in the aluminide coatings were insensitive to temperature. The magnitude of the compressive strains was larger on the superalloys than the ones on the aluminide coatings.

  12. Extended apprenticeship learning in doctoral training and supervision - moving beyond 'cookbook recipes'

    DEFF Research Database (Denmark)

    Tanggaard, Lene; Wegener, Charlotte

    An apprenticeship perspective on learning in academia sheds light on the potential for mutual learning and production, and also reveals the diverse range of learning resources beyond the formal novice-–expert relationship. Although apprenticeship is a well-known concept in educational research......, in this case apprenticeship offers an innovative perspective on future practice and research in academia allowing more students access to high high-quality research training and giving supervisors a chance to combine their own research with their supervision obligations....

  13. Apprenticeship in Scholarly Publishing: A Student Perspective on Doctoral Supervisors’ Roles

    Directory of Open Access Journals (Sweden)

    Jun Lei

    2015-02-01

    Full Text Available Although a large body of literature has suggested that doctoral supervisors play an important role in their students’ attempts at scholarly publishing, few studies have focused specifically on what roles they play. This study sought to address this gap by zooming in on the various roles a group of Chinese doctoral students found their supervisors playing in their scholarly publishing endeavors. Our analysis revealed four important roles played by the supervisors: ‘prey’ searchers, managers, manuscript correctors and masters. The results showed that the supervisors not only facilitated the doctoral students’ publishing output, but also fostered their apprenticeship in scholarly publishing and the academic community. However, the results also unveiled a general unavailability of sorely-needed detailed and specific guidance on students’ early publishing attempts and some supervisors’ limited ability to correct students’ English manuscripts. These findings underscore the important contributions doctoral supervisors can make to their students’ academic socialization. They also suggest a need for external editorial assistance with doctoral students’ English manuscripts and ample opportunities for their scaffolded initiation into the tacit conventions and practices of scholarly publishing.

  14. Determination Anxiety Level of the Youngsters Studying in Denizli Apprenticeship Training Center

    Directory of Open Access Journals (Sweden)

    Ozgur Metin

    2008-04-01

    Full Text Available AIM/BACKGROUND: This study was carried out as a definitive work in order to determine the anxiety level and self-respect of the students studying in Denizli Apprenticeship Training Center. METHODS: The study population was composed of 1276 individuals registered at Denizli Apprenticeship Training Center. The size of the sample was established to be as 235 individuals considering the formula used in the conditions where the study population was determined but 231 individuals were contacted. Those recruited in the study were chosen with the stratified randomized sampling method. The data were obtained during February-March 2005 in the class via the questionnaire formed by the researcher, the State-Continuous Anxiety Inventory and Coopersmith Self-respect Scale. For the evaluation of the data mean, standard deviation, percentage and quantity estimations, Kruskal-Wallis test, t-test, Mann-Whitney Test and one way ANOVA tests were employed. RESULTS: The mean age of the youngsters recruited in the study was 17.06 1.45. 75.3% of the subjects were male, 33.8% had 4 or more siblings, 79.7% were graduated from middle school and 76.7% were living with their families. Another working individual was present in 87.9% of the subjects. 16.5% of the subjects pointed out that they their master did not provided them assistance for a job they held for the first time whereas 35.5% of the subjects stated that they experienced difficulties in case when they needed license of absence. 40.3% of the students enunciated that they were obliged to do work that strain their power, and 29.9% stated that they were not appreciated. The difference between the sex of the subjects, the education status of their fathers and the anxiety level of the youngsters was found to be significant (p0.05. CONCLUSION: The anxiety level of the females involved in the study and the youngsters whose fathers’ education level was middle school or higher was detected to be greater. [TAF Prev Med

  15. The role of materiality in apprenticeships: the case of the Suame Magazine, Kumasi, Ghana

    NARCIS (Netherlands)

    Jaarsma, Thomas; Maat, Harro; Wals, Arjen; Richards, Paul

    2011-01-01

    Jaarsma, T., Maat, H., Richards, P., & Wals, A. (2011). The role of materiality in apprenticeships: The case of the suame magazine, kumasi, ghana. Journal of Vocational Education & Training, 63(3), 439-449.

  16. Teachers’ individual action theories about competence-based education: the value of the cognitive apprenticeship model

    NARCIS (Netherlands)

    Seezink, Audrey; Poell, Rob; Kirschner, Paul A.

    2009-01-01

    Seezink, A., Poell, R. F., & Kirschner, P. A. (2009). Teachers' individual action theories about competence-based education: The value of the cognitive apprenticeship model. Journal of Vocational Education & Training, 61, 203-215.

  17. An apprenticeship learning hyper-heuristic for vehicle routing in HyFlex

    OpenAIRE

    Asta, Shahriar; Özcan, Ender

    2014-01-01

    Apprenticeship learning occurs via observations while an expert is in action. A hyper-heuristic is a search method or a learning mechanism that controls a set of low level heuristics or combines different heuristic components to generate heuristics for solving a given computationally hard problem. In this study, we investigate into a novel apprenticeship-learning-based approach which is used to automatically generate a hyper-heuristic for vehicle routing. This approach itself can be considere...

  18. Apprenticeship, Vocational Training and Early Labor Market Outcomes - in East and West Germany

    OpenAIRE

    Regina T. Riphahn; Zibrowius, Michael

    2015-01-01

    We study the returns to apprenticeship and vocational training for three early labor market outcomes all measured at age 25 for East and West German youths: non-employment (i.e., unemployment or out of the labor force), permanent fulltime employment, and wages. We find strong positive effects of apprenticeship and vocational training. There are no significant differences for different types of vocational training, minor differences between East and West Germany and males and females, and no s...

  19. Role of Apprenticeships in Combating Youth Unemployment in Europe and the United States

    OpenAIRE

    Natalia Aivazova

    2013-01-01

    Many of the world's advanced economies continue to struggle with sluggish growth and high unemployment, especially among younger workers. One reason for high unemployment in countries such as Greece, Portugal, and Spain is a mismatch between the skills demanded by employers and those available among the population. This mismatch can be addressed in part through the implementation of apprenticeship programs. Boosting apprenticeships could give both European and US workers much-needed skills an...

  20. Apprenticeship in science research: whom does it serve?

    Science.gov (United States)

    Davies, Paul

    2016-02-01

    This article advances the thinking of Thompson, Conaway and Dolan's "Undergraduate students' development of social, cultural, and human capital in a network research experience". Set against a background of change in the biosciences, and participation, it firstly explores ideas of what it means to be a scientist, then challenges the current view of the apprenticeship model of career trajectory, before going onto to consider the nature of participation in communities of practice and issues related to underrepresented minority groups in science. Central to this analysis is the place that the notion of habitus plays in thinking about shaping future scientists and the how this can both support, but also suppress, opportunities for individuals through a maintenance of the status quo.

  1. Apprenticeship, education, and technology: Children as oldtimers and newcomers to the culture of learning through design

    Science.gov (United States)

    Ching, Cynthia Carter

    This study deals with the construct of apprenticeship, a well-documented phenomena in anthropological and cultural studies, but which is treated here in unique ways. Whereas most existing work examines apprenticeship among adults in traditional vocational settings, this research is situated among a community of fourth and fifth grade schoolchildren with different levels of previous experience "learning through design" and programming science simulations, thus making them relative oldtimers and newcomers to the culture and practices of design. This work examines teams of children as they create computer simulations, and documents the practices that characterize their apprenticeship to one another. This research also describes how children conceptualize their own roles as newcomers or oldtimers to design. Finally, this study investigates how cognitive benefits realized in an apprenticeship environment are distinctive from that in non-apprenticeship classroom communities, due to the addition of a comparison group of fourth and fifth grade students all engaged in learning through design for the first time. Results reveal that design apprenticeship among schoolchildren shares some crucial characteristics with vocational apprenticeships. Oldtimers initially break down tasks into component parts for newcomers to perform, newcomers move from peripheral to fuller participation in the design process as the project progresses, and tacit pedagogical interactions initiated by oldtimers are intimately tied to the immediate design context on a day-to-day basis. Oldtimers are also more reflective about their interactions with other designers, and they have a more differentiated view of the design process as a whole, than newcomers or comparison first-time designers. The learning benefits realized in an apprenticeship environment are characterized not by a significant difference over the comparison class in the amount of science content or programming code students mastered, but

  2. How Can the Expansion of the Apprenticeship System in India Create Conditions for Greater Equity and Social Justice?

    Science.gov (United States)

    Smith, Erica; Kemmis, Ros Brennan; Comyn, Paul

    2014-01-01

    This paper reports on aspects of a recent project carried out for the International Labour Organization (ILO) and the World Bank, which was designed to feed into the process of updating and expanding India's apprenticeship system. The apprenticeship system in India is extremely small for the country's population, even taking into account…

  3. Does Academic Apprenticeship Increase Networking Ties among Participants? A Case Study of an Energy Efficiency Training Program

    Science.gov (United States)

    Hytönen, Kaisa; Palonen, Tuire; Lehtinen, Erno; Hakkarainen, Kai

    2014-01-01

    In order to address the requirements of future education in different fields of academic professional activity, a model called Academic Apprenticeship Education was initiated in Finland in 2009. The aim of this article is to analyse the development of expert networks in the context of a 1-year Academic Apprenticeship Education model in the field…

  4. Pre-Apprenticeships in Three Key Trades. A National Vocational Education and Training Research and Evaluation Program Report

    Science.gov (United States)

    Dumbrell, Tom; Smith, Erica

    2007-01-01

    This report looks at whether pre-apprenticeships increase the potential supply of tradespeople, with a special focus on electrotechnology, automotive and engineering students. It found that pre-apprenticeships have been used in Australia for many years and are widely regarded as a valuable strategy for increasing the supply and quality of…

  5. Out of This Nettle, Drop-Out, We Pluck This Flower, Opportunity: Re-Thinking the School Foreign Language Apprenticeship

    Science.gov (United States)

    Hawkins, Eric

    2005-01-01

    The assumption that the "purpose" of school foreign language teaching is to serve "instrumental" ends may largely underlie the present adolescent dropout. In this article the author proposes a two-stage foreign language apprenticeship. A two-stage apprenticeship would include a carefully planned diagnostic element, preparing learners for the…

  6. Acute Bouts of Assisted Cycling Improves Cognitive and Upper Extremity Movement Functions in Adolescents with Down Syndrome

    Science.gov (United States)

    Ringenbach, Shannon D. R; Albert, Andrew R.; Chen, Chih-Chia; Alberts, Jay L.

    2014-01-01

    The aim of this study was to examine the effectiveness of 2 modes of exercise on cognitive and upper extremity movement functioning in adolescents with Down syndrome (DS). Nine participants randomly completed 3 interventions over 3 consecutive weeks. The interventions were: (a) voluntary cycling (VC), in which participants cycled at their…

  7. Epigenetic imprinting during assisted reproductive technologies: The effect of temporal and cumulative fluctuations in methionine cycling on the DNA methylation state.

    Science.gov (United States)

    Hoeijmakers, Lianne; Kempe, Hermannus; Verschure, Pernette J

    2016-02-01

    Assisted reproductive technology (ART) exposes gametes and embryos to an artificial environment that does not resemble the conditions of natural conception, and therefore might change epigenetic regulation of genes that are imprinted during development. In the present review, we discuss the relationship between susceptibility of specific genes to receive an altered epigenetic composition during ART processes, possibly via alterations in the biochemical folate and methionine cycle. We provide a comprehensive view of the current state of epigenetic patterning in ART-conceived healthy children and in Angelman syndrome (AS) and Beckwith-Wiedemann syndrome (BWS) patients. We illustrate that similar genes--that is, MEST, KCNQ1OT1, and IGF2--possess an altered DNA methylation profile in animal models, ART-conceived healthy children, and AS and BWS patients. The developmental stage at which these genes receive their epigenetic imprint appears to coincide with the specific moment that ART takes place. We highlight that ART procedures affect physiological levels of enzymes and substrates involved in the folate and methionine cycle thereby altering the DNA methylation state. Moreover, although the DNA methylation rate appears to be robust: (i) temporal imbalances coinciding with defined moments of epigenetic imprinting of specific genes affect the eventual DNA methylation state of those genes and (ii) cumulative ART effects on methionine and folate cycling can alter DNA methylation rates. These observations underscore the necessity to further investigate consequences of ART treatments on the epigenetic profile. PMID:26660493

  8. Probing the effect of human normal sperm morphology rate on cycle outcomes and assisted reproductive methods selection.

    Directory of Open Access Journals (Sweden)

    Bo Li

    Full Text Available Sperm morphology is the best predictor of fertilization potential, and the critical predictive information for supporting assisted reproductive methods selection. Given its important predictive value and the declining reality of semen quality in recent years, the threshold of normal sperm morphology rate (NSMR is being constantly corrected and controversial, from the 4th edition (14% to the 5th version (4%. We retrospectively analyzed 4756 cases of infertility patients treated with conventional-IVF(c-IVF or ICSI, which were divided into three groups according to NSMR: ≥14%, 4%-14% and <4%. Here, we demonstrate that, with decrease in NSMR(≥14%, 4%-14%, <4%, in the c-IVF group, the rate of fertilization, normal fertilization, high-quality embryo, multi-pregnancy and birth weight of twins gradually decreased significantly (P<0.05, while the miscarriage rate was significantly increased (p<0.01 and implantation rate, clinical pregnancy rate, ectopic pregnancy rate, preterm birth rate, live birth rate, sex ratio, and birth weight(Singleton showed no significant change. In the ICSI group, with decrease in NSMR (≥14%, 4%-14%, <4%, high-quality embryo rate, multi-pregnancy rate and birth weight of twins were gradually decreased significantly (p<0.05, while other parameters had no significant difference. Considering the clinical assisted methods selection, in the NFMR ≥14% group, normal fertilization rate of c-IVF was significantly higher than the ICSI group (P<0.05, in the 4%-14% group, birth weight (twins of c-IVF were significantly higher than the ICSI group, in the <4% group, miscarriage of IVF was significantly higher than the ICSI group. Therefore, we conclude that NSMR is positively related to embryo reproductive potential, and when NSMR<4% (5th edition, ICSI should be considered first, while the NSMR≥4%, c-IVF assisted reproduction might be preferred.

  9. Teaching Strategies: Teaching beyond the Basics--Young Children Participate in a Cognitive Apprenticeship

    Science.gov (United States)

    Essary, Jessica N.

    2012-01-01

    Brown, Collins, and Duguid (1989) described cognition as "situated"--"a product of the activity, context, and culture in which it is developed and used" (p. 32)--and outlined the "cognitive apprenticeship" approach to teach "what" something is, as well as "how" knowledge can be used in order to help children create their own understanding. Similar…

  10. The "Duality" of VET in Austria: Institutional Competition between School and Apprenticeship

    Science.gov (United States)

    Lassnigg, Lorenz

    2011-01-01

    This article analyses the structure and development of Austrian apprenticeship in the context of the country's wider vocational education and training (VET) system. In doing so, it draws on official data and survey results as well as the available, related literature on historical institutionalism. It begins with an analysis of the basic structure…

  11. Stationary Engineers Apprenticeship. Related Training Modules. 9.1-9.6 Refrigeration.

    Science.gov (United States)

    Lane Community Coll., Eugene, OR.

    This packet of six learning modules on refrigeration is one of 20 such packets developed for apprenticeship training for stationary engineers. Introductory materials are a complete listing of all available modules and a supplementary reference list. Each module contains some or all of these components: goal, performance indicators, statement of…

  12. 77 FR 2351 - Agency Information Collection (Monthly Certification of On-the-Job and Apprenticeship Training...

    Science.gov (United States)

    2012-01-17

    ... information through www.Regulations.gov or to VA's OMB Desk Officer, OMB Human Resources and Housing Branch... AFFAIRS Agency Information Collection (Monthly Certification of On-the- Job and Apprenticeship Training... Training, VA Forms 22-6553d and 22-6553d-1. OMB Control Number: 2900-0178. Type of Review: Extension of...

  13. Cognitive Apprenticeship as a Vehicle for Enhancing the Understanding and Functionalization of Organic Chemistry Knowledge

    Science.gov (United States)

    Putica, Katarina; Trivic, Dragica D.

    2016-01-01

    This paper presents a pedagogical experiment with parallel groups through which the effectiveness of the cognitive apprenticeship model of dealing with the teaching topic "Carboxylic acids and their derivatives" was compared with the traditional approach to the elaboration of this topic. This experiment featured the participation of 241…

  14. Low Voltage Alarm Apprenticeship. Related Training Modules. 27.1-27.4 Computer Usage.

    Science.gov (United States)

    Lane Community Coll., Eugene, OR.

    This packet of four learning modules on computer usage is one of eight such packets developed for apprenticeship training for low voltage alarm. Introductory materials are a complete listing of all available modules and a supplementary reference list. Each module contains some or all of these components: goal, performance indicators, study guide…

  15. Study of New Youth Initiatives in Apprenticeship. Interim Report. Volume 2: Site Visit Reports.

    Science.gov (United States)

    CSR, Inc., Washington, DC.

    This second volume of the interim report provides detailed case study reports on each of the eight Youth Apprenticeship Projects. (Volume 1, an overview of data from the site visits, is available separately as CE 032 791.) Discussion areas covered in each site visit report are local context/operational environment, administrative information,…

  16. Apprenticeships and Regeneration: The Civic Struggle to Achieve Social and Economic Goals

    Science.gov (United States)

    Fuller, Alison; Rizvi, Sadaf; Unwin, Lorna

    2013-01-01

    Apprenticeship has always played both a social and economic role. Today, it forms part of the regeneration strategies of cities in the United Kingdom. This involves the creation and management of complex institutional relationships across the public and private domains of the civic landscape. This paper argues that it is through closely observed…

  17. Building an Apprenticeship and Training System for Maintenance Occupations in the American Transit Industry

    Science.gov (United States)

    Glover, Robert W.; Clopton, Lewis; McCollum, Malcolm; Wang, Xinge

    2007-01-01

    Purpose: The purpose of this paper is to discuss the joint training and apprenticeship system emerging in maintenance occupations in the US transit industry, its challenges and strategies to overcome them. Design/methodology/approach: The paper reports on early results, including efforts to develop a consensus national framework for apprenticeship…

  18. Crafting an Occupational Identity: Learning the Precepts of Craftsmanship through Apprenticeship

    Science.gov (United States)

    Chan, Selena

    2014-01-01

    The term craftsmanship is associated with pre-industrial craft work with inferences to skilled artisanal manufacture of bespoke products. Apprenticeship learning is often perceived to be synonymous with learning craftsmanship. How then is the trait of craftsmanship through attainment of specific artisanal approaches conveyed and learnt through…

  19. Field Heat Treatment Technician: Competency Profile. Apprenticeship and Industry Training. 20908.1

    Science.gov (United States)

    Alberta Advanced Education and Technology, 2008

    2008-01-01

    The graduate of the Field Heat Treatment Technician apprenticeship program is a certified journeyperson who will be able: (1) use heat treatment equipment to apply heat to materials in order to change a material's properties; (2) Use their knowledge of the properties of heat, industry codes and specifications to determine how heat treatment will…

  20. Affinity Spaces, Apprenticeships, and Agency: Exploring Blogging Engagements in Family Spaces

    Science.gov (United States)

    Lewis, Tisha Y.

    2014-01-01

    This empirical study examines the virtual exchanges between an African American mother and son's engagement in a blog. Using literacy as social practices as a framework, this study describes how blogging was developed and used to create affinity spaces, encouraged apprenticeship models, and shaped agentic roles within their family. Attention…

  1. 78 FR 2443 - Comment Request for Information Collection for the Registered Apprenticeship-College Consortium...

    Science.gov (United States)

    2013-01-11

    ... workers that possess in-demand skills and competencies. Registered Apprenticeship pairs paid on-the-job learning with related technical/theoretical classes in a career field. The earn- while-you-learn model..., Labor. BILLING CODE 4510-FR-P...

  2. Level III Apprenticeship in Portugal--Notes on a Case Study

    Science.gov (United States)

    Saboga, Ana Rute

    2008-01-01

    This article presents the results of research into how young trainees in the level III apprenticeship system formulate their educational and professional plans, what expectations they have of obtaining socially and professionally recognised qualifications, and in what way enterprises see such training as a strategy for providing human resources…

  3. A Model for Developing Meta-Cognitive Tools in Teacher Apprenticeships

    Science.gov (United States)

    Bray, Paige; Schatz, Steven

    2013-01-01

    This research investigates a model for developing meta-cognitive tools to be used by pre-service teachers during apprenticeship (student teaching) experience to operationalise the epistemological model of Cook and Brown (2009). Meta-cognitive tools have proven to be effective for increasing performance and retention of undergraduate students.…

  4. 75 FR 78807 - Agency Information Collection (Other On-The-Job Training and Apprenticeship Training Agreement...

    Science.gov (United States)

    2010-12-16

    ... ] OMB Desk Officer, OMB Human Resources and Housing Branch, New Executive Office Building, Room 10235... AFFAIRS Agency Information Collection (Other On-The-Job Training and Apprenticeship Training Agreement and Standards and Employer's Application To Provide Job Training) Activity Under OMB Review AGENCY:...

  5. Cost-Benefit Paradigm of Apprenticeship Training: Reviewing Some Existing Literature

    Science.gov (United States)

    Asghar, Waheed; Shah, Iftkhar Hussain; Akhtar, Naeem

    2016-01-01

    The focus of this paper is "dual" apprenticeship training, which involves both on-the-job and institutional training. Apprentices receive training both within the companies to which they are apprenticed and within state-run, vocational institutes. The cost of training under this system is mainly borne by the employer, which has given…

  6. Millwright Apprenticeship. Related Training Modules. 7.1-7.9 Boilers.

    Science.gov (United States)

    Lane Community Coll., Eugene, OR.

    This packet, part of the instructional materials for the Oregon apprenticeship program for millwright training, contains nine modules covering boilers. The modules provide information on the following topics: fire and water tube types of boilers, construction, fittings, operation, cleaning, heat recovery systems, instruments and controls, and…

  7. Peer Apprenticeship Learning in Networked Learning Communities: The Diffusion of Epistemic Learning

    Science.gov (United States)

    Jamaludin, Azilawati; Shaari, Imran

    2016-01-01

    This article discusses peer apprenticeship learning (PAL) as situated within networked learning communities (NLCs). The context revolves around the diffusion of technologically-mediated learning in Singapore schools, where teachers begin to implement inquiry-oriented learning, consistent with 21st century learning, among students. As these schools…

  8. A Cognitive-Apprenticeship-Inspired Instructional Approach for Teaching Scientific Writing and Reading

    Science.gov (United States)

    Kolikant, Yifat Ben-David; Gatchell, David W.; Hirsch, Penny L.; Linsenmeier, Robert A.

    2006-01-01

    We present an approach for integrating instruction of scientific writing and reading into undergraduate science courses, inspired by the pedagogical theory of cognitive apprenticeship. We demonstrate its implementation and describe a study of students' feedback that enabled us to elicit students' difficulties and fine-tune the next application…

  9. Integrating Literacy and Science in Biology: Teaching and Learning Impacts of Reading Apprenticeship Professional Development

    Science.gov (United States)

    Greenleaf, Cynthia L.; Litman, Cindy; Hanson, Thomas L.; Rosen, Rachel; Boscardin, Christy K.; Herman, Joan; Schneider, Steven A.

    2011-01-01

    This study examined the effects of professional development integrating academic literacy and biology instruction on science teachers' instructional practices and students' achievement in science and literacy. The intervention consisted of 10 days of professional development in Reading Apprenticeship, an instructional framework integrating…

  10. Ignition assist systems for direct-injected, diesel cycle, medium-duty alternative fuel engines: Final report phase 1

    Energy Technology Data Exchange (ETDEWEB)

    Chan, A.K.

    2000-02-23

    This report is a summary of the results of Phase 1 of this contract. The objective was to evaluate the potential of assist technologies for direct-injected alternative fuel engines vs. glow plug ignition assist. The goal was to demonstrate the feasibility of an ignition system life of 10,000 hours and a system cost of less than 50% of the glow plug system, while meeting or exceeding the engine thermal efficiency obtained with the glow plug system. There were three tasks in Phase 1. Under Task 1, a comprehensive review of feasible ignition options for DING engines was completed. The most promising options are: (1) AC and the ''SmartFire'' spark, which are both long-duration, low-power (LDLP) spark systems; (2) the short-duration, high-power (SDHP) spark system; (3) the micropilot injection ignition; and (4) the stratified charge plasma ignition. Efforts concentrated on investigating the AC spark, SmartFire spark, and short-duration/high-power spark systems. Using proprietary pricing information, the authors predicted that the commercial costs for the AC spark, the short-duration/high-power spark and SmartFire spark systems will be comparable (if not less) to the glow plug system. Task 2 involved designing and performing bench tests to determine the criteria for the ignition system and the prototype spark plug for Task 3. The two most important design criteria are the high voltage output requirement of the ignition system and the minimum electrical insulation requirement for the spark plug. Under Task 3, all the necessary hardware for the one-cylinder engine test was designed. The hardware includes modified 3126 cylinder heads, specially designed prototype spark plugs, ignition system electronics, and parts for the system installation. Two 3126 cylinder heads and the SmartFire ignition system were procured, and testing will begin in Phase 2 of this subcontract.

  11. Impact of female age and male infertility on ovarian reserve markers to predict outcome of assisted reproduction technology cycles

    Directory of Open Access Journals (Sweden)

    Hsieh Kung-Chen

    2009-09-01

    Full Text Available Abstract Background This study was designed to assess the capability of ovarian reserve markers, including baseline FSH levels, baseline anti-Müllerian hormone (AMH levels, and antral follicle count (AFC, as predictors of live births during IVF cycles, especially for infertile couples with advanced maternal age and/or male factors. Methods A prospective cohort of 336 first IVF/ICSI cycles undergoing a long protocol with GnRH agonist was investigated. Patients with endocrine disorders or unilateral ovaries were excluded. Results Among the ovarian reserve tests, AMH and age had a greater area under the receiving operating characteristic curve than FSH in predicting live births. Furthermore, AMH and age were the sole predictive factors of live births for women greater than or equal to 35 years of age; while AMH was the major determinant of live births for infertile couples with absence of male factors by multivariate logistic regression analysis. However, all the studied ovarain reserve tests were not preditive of live births for women Conclusion The serum AMH levels were prognostic for pregnancy outcome for infertile couples with advanced female age or absence of male factors. The predictive capability of ovarian reserve tests is clearly influenced by the etiology of infertility.

  12. Carbon gel assisted low temperature liquid-phase synthesis of C-LiFePO4/graphene layers with high rate and cycle performances

    Science.gov (United States)

    Tang, Hongwei; Si, Yanli; Chang, Kun; Fu, Xiaoning; li, Bao; Shangguan, Enbo; Chang, Zhaorong; Yuan, Xiao-Zi; Wang, Haijiang

    2015-11-01

    Nano-scale LiFePO4/graphene oxide (GO) as cathode materials for lithium ion batteries has been successfully synthesized via a one-step carbon gel assisted liquid-phase approach at a low-temperature (108 °C) and normal pressure. C-LiFePO4/graphene layers (G) composites, composed of LiFePO4, amorphous carbon and graphene layers, are then produced after rapid high temperature carbon treatment. Interface tunnel effect, produced by the intimate contact of LiFePO4 particles with amorphous carbon and graphene layers, greatly improves the properties of the composites. Electrochemical tests indicate that the optimal amount of GO addition is 1 wt.% in terms of achieving a high electrochemical performance of the C-LiFePO4/G composites. Discharge capacity of the C-LiFePO4/G composites is 160.0 mAh g-1 at 0.2 C. When the current rate is further increased to 60 C, the discharge capacity of C-LiFePO4/G can reach 68 mAh g-1. At a high current rate of 20 C, the capacity attenuation rate of the C-LiFePO4/G electrode is only 9.6% after 200 cycles, showing excellent high-rate discharge capability and cycle performance. This is achieved under a facile synthesis condition of a simple procedure, low temperature, and normal pressure.

  13. Global Economic Crisis and Career Aspirations among ‘Okada’ Riders in Nigeria: The Influence of Apprenticeship Skills Training

    Directory of Open Access Journals (Sweden)

    Oluranti I. Ogunrinola

    2011-07-01

    Full Text Available In spite of their usefulness as fast movers of passengers and goods in urban traffic congestion, the motor-cycle taxis have been noted for high rate of road traffic crashes inflicting injuries to many and death in some cases. Thus, a number of operators are in the occupation for other purposes rather than making it a lifetime career. This study is therefore aimed at examining such other purposes and future career aspirations of riders. It is also aimed at testing the hypothesis of the probabilistic migration model as propounded by Todaro. The data for the study is from a survey of 777 okada riders in two states of South West Nigeria. Using binary logit regression approach, the determinants of career choice among respondents are examined. The findings of the study shows employment as okada riders are for raising start-up capital in most cases, and that education, current earnings level and apprenticeship skills training among others are statistically significant variables affecting career aspiration among the respondents. Provision of commensurate employment for the educated youths and relaxing capital constraints for those with previous skills training are some of the policy implications of findings.

  14. Attempt of lean burn of a 4 cycle gasoline engine by the aid of low pressure air assisted in-cylinder injection; Tonai kuki nenryo funsha ni yoru lean burn no kokoromi

    Energy Technology Data Exchange (ETDEWEB)

    Hatakeyama, S.; Kondo, M.; Sekiya, Y.; Murayama, T. [Hokkaido Automotive Engineering College, Hokkaido (Japan)

    1997-10-01

    Comparable performance and exhaust emission with conventional carburetor was obtained by a low Pressure air assisted in-cylinder injection system. And lean burn of idling and light load operation till A/F=70 was realized by installing a spark Plug and a reed type injection nozzle in a divided combustion chambaer of a 4 cycle gasoline engine. 2 refs., 10 figs.

  15. Just and Reasonable Treatment: Racial Treatment in the Terms of Pauper Apprenticeship in Antebellum Maryland

    OpenAIRE

    Howard Bodenhorn

    2003-01-01

    This paper investigates the economics of pauper apprenticeship in antebellum Maryland and several results emerge. Contrary to some earlier interpretations, the system did not arbitrarily indent poor children. Court officials negotiated contracts that reflected an apprentice's productivity; officials did not offer one-size-fits-all contracts to minimize the costs of indenting indigent children. Black and white children received comparable compensation during the term of the indenture, but blac...

  16. Apprenticeship policy in England: increasing skills versus boosting young people’s job prospects.

    OpenAIRE

    Steedman, Hilary

    2011-01-01

    Successive British governments have committed substantial public resources to apprentice training, but far too few young people benefit and not enough high value skills have been developed. That is the central conclusion of a new report published by the Centre for Economic Performance (CEP). The report’s author, Dr Hilary Steedman, who has nearly 30 years of research experience in this field, calls for a change in the country’s apprenticeship model.

  17. Financial aspects of apprenticeship training in Germany, Great Britain and Switzerland

    OpenAIRE

    Ryan, Paul; Wagner, Karin; Teuber, Silvia; Backes-Gellner, Uschi

    2011-01-01

    Financial attributes are potentially important influences on the viability of apprenticeship as a mode of vocational education and training. Two financial aspects are considered: apprentices’ pay, which determines the division of training costs between the trainee and the employer; and corporate ownership, which may influence the incentive to employers to provide training, insofar as it promotes or deters short-termist practice concerning investment in employees’ skills. Evidence is ta...

  18. Investigating the Nursing Practitioners Perspectives about Undergraduate Nursing Internship and Apprenticeship Courses: Is Renewing Required?

    OpenAIRE

    2013-01-01

    Nurses’ professional capacity plays an important role in the health system to achieve their mission. This study aimed to investigate the perspectives of nursing practitioners about undergraduate nursing internship and apprenticeship courses and possible ways of renewing the courses. This cross sectional survey was performed over 258 bachelors and practitioners of nursing graduates of Alborz University of medical sciences in the second half of 2012. Based on a multi-stage sampling schedule, qu...

  19. THE PREVALENCE OF SMOKING AMONG THE STUDENTS OF MERAM APPRENTICESHIP SCHOOL

    Directory of Open Access Journals (Sweden)

    Ruhusen KUTLU

    2006-12-01

    Full Text Available The purpose of this study is to describe the prevalence of smoking among the students of Meram Apprenticeship School and to analyze the affecting factors. This descriptive and cross-sectional study was carried out among 192 students who educated at Meram Apprenticeship School during 2004-2005 academic years. Of 192 students whom participated in this study, 95.8 % ( n= 184 were male, and 4.2 % (n= 8 were female, minimum age was 15, maximum age was 20 (median value= 17 years. When the smoking status was evaluated, 50.5 % (n= 97 were ever-smokers, 7.3 % (n= 14 were ex-smokers, 42.2 % (n=81 were never smokers. The lowest age at starting smoking was 7 years, the highest age was 18 years and the median value was 13 years. When the reasons to start smoking were analysed, 41 students of 97 current smokers stated that they had started smoking because of affecting of social environment and friend groups (40.6 %, n=41, affectation and enthusiasm (27.7 %, n=28, stress and anxiety (21.8 % n=22. According to Fagerstrom criterion, 43 students (42.2 % were assessed very low addictive level, 23 students (n=22.5% were high addictive level. Our results showed that the prevalence of smoking among the students of Meram Apprenticeship School was an important matter. [TAF Prev Med Bull 2006; 5(6.000: 424-433

  20. Cognitive apprenticeship in clinical practice: can it stimulate learning in the opinion of students?

    Science.gov (United States)

    Stalmeijer, Renée E; Dolmans, Diana H J M; Wolfhagen, Ineke H A P; Scherpbier, Albert J J A

    2009-10-01

    Learning in clinical practice can be characterised as situated learning because students learn by performing tasks and solving problems in an environment that reflects the multiple ways in which their knowledge will be put to use in their future professional practice. Collins et al. introduced cognitive apprenticeship as an instructional model for situated learning comprising six teaching methods to support learning: modelling, coaching, scaffolding, articulation, reflection and exploration. Another factor that is looked upon as conducive to learning in clinical practice is a positive learning climate. We explored students' experiences regarding the learning climate and whether the cognitive apprenticeship model fits students' experiences during clinical training. In focus group interviews, three groups of 6th-year medical students (N = 21) discussed vignettes representing the six teaching methods and the learning climate to explore the perceived occurrence of the teaching methods, related problems and possibilities for improvement. The students had experienced all six teaching methods during their clerkships. Modelling, coaching, and articulation were predominant, while scaffolding, reflection, and exploration were mainly experienced during longer clerkships and with one clinical teacher. The main problem was variability in usage of the methods, which was attributed to teachers' lack of time and formal training. The students proposed several ways to improve the application of the teaching methods. The results suggest that the cognitive apprenticeship model is a useful model for teaching strategies in undergraduate clinical training and a valuable basis for evaluation, feedback, self-assessment and faculty development of clinical teachers.

  1. A Prospective Randomized Controlled Study of Laser-Assisted Hatching on the Outcome of First Fresh IVF-ET Cycle in Advanced Age Women.

    Science.gov (United States)

    Shi, Wenhao; Hongwei, Tan; Zhang, Wei; Li, Na; Li, Mingzhao; Li, Wei; Shi, Juanzi

    2016-10-01

    There is no sufficient data to conclude the benefit of assisted hatching (AH) for advanced age patients. However, AH is routinely performed for advanced age patients undergoing in vitro fertilization (IVF) in China based on some retrospective evidence. It is important to assess the benefit of AH procedure for advanced age patients, especially by analyzing the data from China. This is a prospective randomized controlled trial to evaluate the effect of laser AH in the advanced age patients undergoing IVF. A total of 256 patients conformed to the inclusion criteria, and 78 were excluded by exclusion criteria. A total of 178 patients were eligible and randomized to 2 groups (82 AH group and 96 control group). Laser AH (zona thinning) was performed in the AH group. There were no statistical significance in basic clinical parameters between the 2 groups. No difference was found in implantation rate (AH vs control, 32.45% vs 39.29%) and clinical pregnancy rate (AH vs control, 48.78% vs 59.38%). Our data did not find any benefit of laser AH in improving implantation or pregnancy rates in advanced age women. Due to the potential risk and increasing financial burden, AH should not be routinely performed in first fresh IVF embryo transfer cycle for advanced age women.

  2. "I Actually Contributed to Their Research": The Influence of an Abbreviated Summer Apprenticeship Program in Science and Engineering for Diverse High-School Learners

    Science.gov (United States)

    Burgin, Stephen R.; McConnell, William J.; Flowers, Alonzo M., III

    2015-01-01

    This study describes an investigation of a research apprenticeship program that we developed for diverse high-school students often underrepresented in similar programs and in science, technology, engineering, and math (STEM) professions. Through the apprenticeship program, students spent 2 weeks in the summer engaged in biofuels-related research…

  3. The effect of a group guidance program to elementary 8th grade students’ views towards apprenticeship training

    Directory of Open Access Journals (Sweden)

    Abdullah Ishiklar

    2012-02-01

    Full Text Available The primary purpose of this study is to determine the effect of a group guidance program to elementary 8th grade students’ views towards apprenticeship training. This study is a control group pre-test post-test experimental research. The research was conducted to students who were enrolled in an elementary school in Konya, Turkey. While research’s experimental group was constituted of 11 female and 14 male students (total: 25 students, control group was constituted of 11 female and 14 male students (total: 25 students. Vocational group guidance was conducted to experimental group for 9 weeks once a week. The views of experimental and control group students towards apprenticeship education were measured by Apprenticeship Education Evaluation Form-B (AEEF-B at pre-test post-test phases. In this research, applied vocational group guidance program includes views and behaviours which can be measured by Apprenticeship Education Evaluation Form-B. Group discussion and homework techniques were used to gain vocational views and behaviours in vocational group guidance. After analysis there have been found significant difference between experimental and control groups’ AEEF-B pre-test post-test average scores at 0.01 level. Findings showed that vocational group guidance method had a positive effect against negative ideas to apprenticeship education. In addition, vocational group guidance method has been found to be effective in changing 8th year elementary school students’ negative views towards apprenticeship education to positive views. This program is compatible as long as it is used in vocational guidance activities of 8th year elementary school students.

  4. Fluorescence biosensing strategy based on mercury ion-mediated DNA conformational switch and nicking enzyme-assisted cycling amplification for highly sensitive detection of carbamate pesticide.

    Science.gov (United States)

    Wang, Xiuzhong; Hou, Ting; Dong, Shanshan; Liu, Xiaojuan; Li, Feng

    2016-03-15

    Pesticides are of great importance in agricultural and biological fields, but pesticide residues may harm the environment and human health. A highly sensitive fluorescent biosensor for the detection of carbamate pesticide has been developed based on acetylcholinesterase (AChE)-catalyzed hydrolysis product triggered Hg(2+) release coupled with subsequent nicking enzyme-induced cleavage of a duplex DNA for cycling amplification. In this protocol, two DNA probes, an unmodified single-stranded helper DNA probe 1 (HP1) and a quencher-fluorophore probe (QFP) are ingeniously designed. HP1 can be folded into hairpin configuration through T-Hg(2+)-T base pair formation. QFP, labeled with FAM and BHQ1 at its two terminals, contains the recognition sequence and the cleavage site of the nicking enzyme. In the presence of carbamate pesticide, the activity of AChE is inhibited, and the amount of the product containing the thiol group generated by the hydrolysis reaction of acetylthiocholine chloride (ACh) decreases, resulting in the release of a low concentration of Hg(2+). The number of HP1 that can be selectively unfolded would be reduced and the subsequent nicking enzyme-assisted cleavage processes would be affected, resulting in decreased fluorescence signals. The fluorescence intensity further decreases with the increase of the pesticide concentration. Therefore, the pesticide content can be easily obtained by monitoring the fluorescence signal change, which is inversely proportional to the logarithm of the pesticide concentration. The detection limit of aldicarb, the model analyte, is 3.3 μgL(-1), which is much lower than the Chinese National Standards or those previously reported. The as-proposed method has also been applied to detect carbamate pesticide residues in fresh ginger and artificial lake water samples with satisfactory results, which demonstrates that the method has great potential for practical application in biological or food safety field.

  5. Microdose GnRH Agonist Flare-Up versus Ultrashort GnRH Agonist Combined with Fixed GnRH Antagonist in Poor Responders of Assisted Reproductive Techniques Cycles

    OpenAIRE

    Parisa Khani; Fariba Yousefnejad; Farnaz Mohammadian; Maryam Eftekhar

    2013-01-01

    Background: This study compares the microdose flare-up protocol to the ultrashort gonadotropinreleasing hormone (GnRH) agonist flare combined with the fixed multidose GnRH antagonist protocol in poor responders undergoing ovarian stimulation. Materials and Methods: In this randomized clinical trial, 120 women who were candidates for assisted reproductive techniques (ART) and had histories of one or more failed in vitro fertilization (IVF) cycles with three or fewer retrieved oocytes were pros...

  6. Martial arts, professional education and the apprenticeship system: Documentary analysis of Brazilian judo

    OpenAIRE

    A.J. Drigo; S. Souza Neto; J. Cesana; J.B.A. Gomes Tojal

    2011-01-01

    The aim of this research was to describe the process of professional education of judo coaches in Brazil. In order to do this, documental sources were used as means of data collection. Results showed that highly regarded institutions such as Confederação Brasileira de Judô, Federação Paulista de Judô, and Liga Paulista de Judô all support educational structures that resembles the apprenticeship system, that is, education which provide mostly employment-preparation skills for trained labour...

  7. Apprenticeship and Progression in the Healthcare Sector: Can Labour Market Theory Illuminate Barriers and Opportunities in Contrasting Occupations?

    Science.gov (United States)

    Turbin, Jill; Fuller, Alison; Wintrup, Julie

    2014-01-01

    There is growing research and policy interest in the extent to which government supported Apprenticeship in England provides a platform for educational and career progression in different occupational sectors. This paper makes a contribution to this debate by presenting research on the healthcare sector undertaken in a regional health authority in…

  8. Understanding the Impact of an Apprenticeship-Based Scientific Research Program on High School Students' Understanding of Scientific Inquiry

    Science.gov (United States)

    Aydeniz, Mehmet; Baksa, Kristen; Skinner, Jane

    2011-01-01

    The purpose of this study was to understand the impact of an apprenticeship program on high school students' understanding of the nature of scientific inquiry. Data related to seventeen students' understanding of science and scientific inquiry were collected through open-ended questionnaires. Findings suggest that although engagement in authentic…

  9. Work-Based Learning in Rural America: Employer Participation in School-To-Work Programs and Apprenticeships

    Science.gov (United States)

    Green, Gary Paul

    2005-01-01

    Since the 1980s, many states have initiated institutional reforms designed to address perceived deficiencies in traditional schooling. Most of these reforms involve stronger linkages between employers and schools. In this article, I examine the factors influencing employer involvement in school-to-work programs and apprenticeships in rural…

  10. New Approaches to Training: A Preliminary Review of Nigeria's National Open Apprenticeship Scheme (NOAS). Discussion Paper No. 30.

    Science.gov (United States)

    Umo, Joe U.

    Nigeria's National Open Apprenticeship Scheme (NOAS) is aimed at giving vocational skills to unemployed youth and helping them to be self-employed or get gainful employment. NOAS is targeted at Nigerian men and women aged 15-25. Minimum educational requirements vary by trade; course duration ranges from 2 months to 3 years. The number of trainees…

  11. Is Vacation Apprenticeship of Undergraduate Life Science Students a Model for Human Capacity Development in the Life Sciences?

    Science.gov (United States)

    Downs, Colleen Thelma

    2010-01-01

    A life sciences undergraduate apprenticeship initiative was run during the vacations at a South African university. In particular, the initiative aimed to increase the number of students from disadvantaged backgrounds. Annually 12-18 undergraduate biology students were apprenticed to various institutions during the January and July vacations from…

  12. Transforming Ontario's Apprenticeship Training System: Supplying the Tradespersons Needed for Sustained Growth--A Proposal from Ontario's Colleges

    Science.gov (United States)

    Colleges Ontario, 2009

    2009-01-01

    Ontario's colleges share the provincial government's belief that apprenticeship must play a greater role in addressing skills shortages and contributing to innovative, high-performance workplaces that enhance Ontario's competitiveness. Given the severity of the economic downturn, Ontario faces an immediate, serious challenge as apprenticeship…

  13. Belonging to a Workplace: First-Year Apprentices' Perspectives on Factors Determining Engagement and Continuation through Apprenticeship

    Science.gov (United States)

    Chan, Selena

    2016-01-01

    The transition to work through apprenticeship is one taken by many young people. A sense of belonging to a workplace is posited to be an important precursor for initial and on-going engagement with practice communities. This article details a study of beginning apprentices in ten trades. The project sought to identify factors influencing…

  14. Development and Application of a Situated Apprenticeship Approach to Professional Development of Astronomy Instructors

    Science.gov (United States)

    Prather, Edward E.; Brissenden, Gina

    Professional development for astronomy instructors largely focuses on enhancing their understanding of the limitations of professor-centered lectures while also increasing awareness and better implementation of learning strategies that promote a learner-centered classroom environment. Given how difficult it is to get instructors to implement well-developed and innovative teaching ideas, even when these instructors are supplied with significant and compelling education research data, one must wonder what is missing from the most commonly used professional development experiences. This article proposes a learner- centered approach to professional development for college instructors, which we call situated apprenticeship. This novel approach purposely goes beyond simple awareness building and conventional modeling, challenging instructors to actively engage themselves in practicing teaching strategies in an environment of peer review in which participants offer suggestions and critiques of each other's implementation. Through this learner-centered teaching and evaluation experience, instructors' preexisting conceptual and pedagogical understandings of a particular instructional strategy are brought forth and examined in an effort to promote a real change of practice that positively impacts both their core pedagogical content knowledge and their skills in successfully implementing these teaching strategies. We believe that the adoption of our situated apprenticeship approach for professional development will increase the frequency and success of college instructors' implementation of research-validated instructional strategies for interactive learning.

  15. The cognitive apprenticeship theory for the teaching of mathematics in an online 3D virtual environment

    Science.gov (United States)

    Bouta, Hara; Paraskeva, Fotini

    2013-03-01

    Research spanning two decades shows that there is a continuing development of 3D virtual worlds and investment in such environments for educational purposes. Research stresses the need for these environments to be well-designed and for suitable pedagogies to be implemented in the teaching practice in order for these worlds to be fully effective. To this end, we propose a pedagogical framework based on the cognitive apprenticeship for deriving principles and guidelines to inform the design, development and use of a 3D virtual environment. This study examines how the use of a 3D virtual world facilitates the teaching of mathematics in primary education by combining design principles and guidelines based on the Cognitive Apprenticeship Theory and the teaching methods that this theory introduces. We focus specifically on 5th and 6th grade students' engagement (behavioral, affective and cognitive) while learning fractional concepts over a period of two class sessions. Quantitative and qualitative analyses indicate considerable improvement in the engagement of the students who participated in the experiment. This paper presents the findings regarding students' cognitive engagement in the process of comprehending basic fractional concepts - notoriously hard for students to master. The findings are encouraging and suggestions are made for further research.

  16. Hats off to CERN's Master of Apprenticeships ! Roland Gay of the HR Department (at right) recently received a special diploma from the Geneva Industrial Union (UIG).

    CERN Multimedia

    2004-01-01

    Presented by Carlo Lamprecht, Head of the Department of Economy, Employment and External Affairs of the State of Geneva, the diploma was awarded in recognition of the 199 CERN apprentices Roland has guided through the Certificat Fédéral de Capacité (CFC), an end-of-apprenticeship certificate awarded by the Cantonal authorities. Roland will be retiring in December 2004 after 37 years of service, 32 of which he spent in the role of apprenticeship supervisor.

  17. The Historical Evolution and Background Analysis of China's Factory Apprenticeship%我国工厂师徒制的历史嬗变和背景分析

    Institute of Scientific and Technical Information of China (English)

    张晶

    2012-01-01

    师徒制是一种历史悠久的职业教育形式,我国工厂师徒制在我国特有的历史背景下,也不断发生着嬗变。我国工厂师徒制为国家培养了大批人才,尽管在一段时期因其成为一种劳动用工制度而出现一定的弊端,但是作为一种技艺传授方式,师徒制具有永久的生命力。在现代社会中,应充分发挥师徒制技艺传授的优越性,不断地促进技术的传承。%Apprenticeship is a centuries-old form of vocational education.China's factory apprenticeship has also undergone a continuous transmutation,in the unique historical background.China's factory apprenticeship has trained a large number of talents for our country.In a period of time apprenticeship was made to a system of labor and employment,which has its drawbacks.But as a form to teach skills,apprenticeship has its perpetual vitality.In modern society,we should make full use of the advantages of apprenticeship to promote the heritage of technology.

  18. Martial arts, professional education and the apprenticeship system: Documentary analysis of Brazilian judo

    Directory of Open Access Journals (Sweden)

    A.J. Drigo

    2011-01-01

    Full Text Available The aim of this research was to describe the process of professional education of judo coaches in Brazil. In order to do this, documental sources were used as means of data collection. Results showed that highly regarded institutions such as Confederação Brasileira de Judô, Federação Paulista de Judô, and Liga Paulista de Judô all support educational structures that resembles the apprenticeship system, that is, education which provide mostly employment-preparation skills for trained labour, in detriment of education on the application of scientific principles aiming at improving sporting performance. In conclusion, Brazilian judo seems to be kept away from the academic formation model and linked to the know how to do traditions.

  19. An Evaluation of the Use of a Technique Designed to Assist Prospective Elementary Teachers Use the Learning Cycle with Science Textbooks.

    Science.gov (United States)

    Barman, Charles R.

    1992-01-01

    Presents a study to determine the effects of introducing methods students to the "learning cycle" technique on their ability to adapt science textbooks to the method and employ it in their teaching. Interviews of 24 randomly selected students out of 48 participants indicated that 75 percent used the approach while student teaching and found it…

  20. 现代学徒制的几种基本模式研究%Study on Several Basic Patterns of Modern Apprenticeship

    Institute of Scientific and Technical Information of China (English)

    刘群; 元梅竹

    2013-01-01

    Modern Apprenticeship is a self-innovation and development of traditional appren-ticeship .With the basic pattern of modern apprenticeship in several typical countries and re-gions as the sample ,this essay discusses the current development and main features of mod-ern apprenticeship from aspects of vocational education theory ,legal guarantee and imple-mentation ,so as to provide reference for the development of modern apprenticeship in our country .%现代学徒制是传统学徒制的一种自我革新和发展。本文以世界典型国家和地区现代学徒制的基本模式为研究对象,从职业教育的理论、法律保障和实施等角度分析其发展现状和主要特征。通过研究,以期对我国现代学徒制提供启示和借鉴。

  1. Building Science Identity in Disadvantaged Teenage Girls using an Apprenticeship Model

    Science.gov (United States)

    Pettit, E. C.; Conner, L.; Tzou, C.

    2015-12-01

    Expeditionary science differs from laboratory science in that expeditionary science teams conduct investigations in conditions that are often physically and socially, as well as intellectually, challenging. Team members live in close quarters for extended periods of time, team building and leadership affect the scientific process, and research tools are limited to what is available on site. Girls on Ice is an expeditionary science experience primarily for disadvantaged girls; it fully immerses girls in a mini scientific expedition to study alpine, glacierized environments. In addition to mentoring the girls through conducting their own scientific research, we encourage awareness and discussion of different sociocultural perspectives on the relation between the natural world, science, and society. The experience aligns closely with the apprenticeship model of learning, which can be effective in enhancing identification with science. Using a mixed-methods approach, we show that the Girls on Ice model helps girls (1) increase their interest and engagement in science and build a stronger science identity, (2) develop confidence, importantly they develop a combined physical and intellectual confidence; (3) engage in authentic scientific thinking, including critical thinking and problem solving; and (4) enhance leadership self-confidence. We discuss these results in a learning sciences framework, which posits that learning is inseparable from the social and physical contexts in which it takes place.

  2. Hydro Ottawa's apprenticeship program : building the foundation of our business and future

    Energy Technology Data Exchange (ETDEWEB)

    Jefferies, L. [Hydro Ottawa Ltd., Ottawa, ON (Canada)

    2009-07-01

    Hydro Ottawa is a local distribution company (LDC) with a workforce of 551 people and 127 line maintainers. Apprentices are required due to the physically demanding nature of power line maintenance as well as due to the fact that the utility's workforce is aging. Hydro Ottawa's apprenticeship program was designed as a long-term investment in the utility's future. The cost of the program is offset by a reduced need for hiring contractors. Experienced trades staff are re-deployed to fill many other positions within the utility. The program includes constant monitoring of new recruits during probation to ensure that potential employees are suited to the job. Training resources are optimized to create a safe, focused environment that focuses on the development of core skills. The recruitment process has a strong marketing focus and has the following 5 stages: (1) resume screening, (2) college testing, (3) an interview, (4) a heights and confined space test, and (5) a physical fitness test and medical. The first year of the program involves dedicated training, a boot camp, bi-weekly individual reviews, and testing at a facility. Formal trades training is also conducted. The second year of the program includes a yearly site rotation and attendance at a formal trade school. The third year includes a 4 month stint on an emergency response team. figs.

  3. The Effect of Cognitive Apprenticeship-Based Professional Development on Teacher Self-Efficacy of Science Teaching, Motivation, Knowledge Calibration, and Perceptions of Inquiry-Based Teaching

    Science.gov (United States)

    Peters-Burton, Erin E.; Merz, Sydney A.; Ramirez, Erin M.; Saroughi, Maryam

    2015-10-01

    This study investigated the effects of a 1-year professional development (PD) based on a cognitive apprenticeship model of research experiences on inservice teacher self-efficacy of science teaching, motivation, knowledge calibration, and perceptions of inquiry of 19 secondary earth science and biology teachers. The PD facilitator, who serves a dual role as a scientist and teacher educator, utilized a cognitive apprenticeship model to shape both scientific thinking and inquiry instruction with 19 inservice teachers. Results indicated that inservice teachers changed their perceptions of inquiry and maintained high self-efficacy throughout all phases of the study. However, teachers refrained from making long-term changes in their cognitive strategy instruction. Implications provide a fuller picture of teacher learning during a RET program, supported with inquiry instruction and the implications of cognitive apprenticeships in offering authentic science research experiences with minimal laboratory resources.

  4. Assisted phytoextraction of heavy metals: compost and Trichoderma effects on giant reed (Arundo donax L. uptake and soil N-cycle microflora

    Directory of Open Access Journals (Sweden)

    Nunzio Fiorentino

    2013-12-01

    Full Text Available Little information is available as to the real effectiveness of the phytoextraction remediation technique, since laboratory experiments are still the most common way in which this is measured. Given this, an experiment on a cadmium-polluted soil was carried out in open field conditions in Southern Italy with the aim of assessing the growth and the phytoextraction potential of giant reed (Arundo donax L. Compost fertilisation and Trichoderma harzianum A6 inoculations were used to verify the possibility of increasing the metal uptake of the crop. Biomass yield of giant reed in the first growth season (average 12.8 Mg ha–1 was not affected by the Cd concentration in the soil and this increased significantly with compost fertilisation (13.8 Mg ha–1. Both compost fertilisation and T. harzianum inoculation increased cadmium uptake and translocation in leaves. Nitrifying bacteria was shown to be a useful tool to biomonitor soil quality. These results proved the suitability of the giant reed for assisted-phytoremedation with the use of compost fertilisation and T. harzianum.

  5. Bridging the Gap between Work and Education in Vocational Education and Training: A study of Norwegian Apprenticeship Training Offices and E-portfolio Systems

    Directory of Open Access Journals (Sweden)

    Hæge Nore

    2014-08-01

    Full Text Available This article explores the effect that the use of e-portfolios initiated and organized by apprenticeship training offices has had on the learning processes and assessment practices of apprentices in Norwegian vocational education and training. Although these intermediate structures have the potential to bridge the gap between work and education, they seem to maintain a system of two parallel learning arenas. However, the article summarizes the innovative effects of these transformations as supportive structures for expansive apprenticeship. The study is based on data from a national project on quality assessment, which is supported by documentary evidence from e-portfolios in three different trades: plumbing, industrial mechanics and sales.

  6. From Research Assistant to Professional Research Assistance: Research Consulting as a Form of Research Practice

    Directory of Open Access Journals (Sweden)

    Dawn E. Pollon

    2013-01-01

    Full Text Available Research assistantships have long been viewed as an extension of the formal education process, a form of apprenticeship, and a pathway into the professional practice of research in institutional settings. However, there are other contexts in which researchers practice research. This self-study documents the formative role research assistantships played in the authors’ development as professional research consultants. Four professional research consultants who held research assistant positions during their master’s and doctoral studies describe the contributions of their research assistantship experiences to the advancement of their knowledge, skills, and passion for research and subsequently to their career decisions. Professional research consulting is identified as a natural extension of research assistant roles and a potential career path. The article enhances current understandings about the ways research assistantships contribute to the development of researchers, and specifically to the development of professional research consultants. The analysis will be of interest to students contemplating entering into research assistantships, current research assistants, current research assistant supervisors, academic staff looking to improve their research productivity, and department chairs.

  7. The Role of Heparin in Embryo Implantation in Women with Recurrent Implantation Failure in the Cycles of Assisted Reproductive Techniques (Without History of Thrombophilia.

    Directory of Open Access Journals (Sweden)

    Kobra Hamdi

    2015-06-01

    Full Text Available Several studies have shown the improving effect of heparin on the outcomes of ART. Moreover, it has been reported that adding heparin in non-thrombophilia patients with RIF is useful.The aim of this study was to evaluate the beneficial effects of heparin on ART outcomes in women with history of recurrent implantation failure (RIF and without history of congenital or acquired thrombophilia in a randomized, controlled clinical trial (RCT.In this study, 100 patients with a history of two or more failures in implantation in cycles of ART were randomly subdivided into two groups of study and control. Patients of the control group just received the luteal phase support. In the patients of study group, in addition to the routine support of luteal phase following in vitro fertilization (IVF or intra cytoplasmic sperm injection (ICSI, 5000 units of subcutaneous heparin was administered for 15 days from the day of oocyte pick up. Pregnancy test (β-HCG was done for patient of two groups 15 days after IVF.In the study group, pregnancy test was positive in 16 (32% patients and negative in 34 (68% patients. In the control group, pregnancy test was positive in 15 (30% patients and negative in 35 (70% patients. There was no significant difference between two groups for the role of heparin in the pregnancy rate (p = 0.5.Although the effect of heparin on pregnancy was not statistically significant in this study, with regard to the numerous benefits of this agent, it is recommended to study its effects in further studies with lager sample size.

  8. Resultados das técnicas de reprodução assistida em mulheres doadoras de oócitos no ciclo de tratamento Outcome of assisted reproductive technologies in women with oocyte donation in the treatment cycle

    Directory of Open Access Journals (Sweden)

    Edvaldo Cavalcante

    2005-11-01

    Full Text Available OBJETIVO: comparar os resultados de ciclos de reprodução assistida em mulheres doadoras de oócitos no ciclo de tratamento com o de mulheres não doadoras. MÉTODOS: foram avaliadas, retrospectivamente, as taxas de gravidez, implantação e abortamento de 50 pacientes que doaram oócitos durante o ciclo de reprodução assistida (grupo de doadoras e de 50 pacientes que não doaram oócitos (grupo de não-doadoras, em clínica privada de reprodução assistida em São Paulo, entre os anos de 2001 e 2003. Os critérios de inclusão no estudo foram os seguintes: idade menor que 35 anos; ciclos menstruais regulares; dosagem basal de FSH0,05. CONCLUSÃO: em pacientes que recuperam mais de seis oócitos, a doação de oócitos no ciclo de tratamento não prejudica os resultados dos ciclos de reprodução assistida e não eleva as taxas de abortamento.PURPOSE: to compare the outcome of treatment in patients undergoing assisted reproductive technology (ART cycles who donated eggs during their own ART treatment with the outcome of patients undergoing ART without egg donation. METHODS: we studied retrospectively the pregnancy and implantation rates of 50 patients who donated eggs during the course of their ART treatment (donor group, and the pregnancy and implantation rates of 50 patients who underwent ART cycles and kept all their eggs (non-donor group. between the years 2001-2003. The inclusion criteria used were as follows: age 0.05. CONCLUSION: this study suggests that in patients who produce more than 6 oocytes, egg donation in the treatment cycle does not influence adversely the outcome of ART cycles and does not increase the miscarriage rate.

  9. Bridging the Gap between Work and Education in Vocational Education and Training. A Study of Norwegian Apprenticeship Training Offices and E-Portfolio Systems

    Science.gov (United States)

    Nore, Haege; Lahn, Leif Christian

    2014-01-01

    This article explores the effect that the use of e-portfolios initiated and organized by apprenticeship training offices has had on the learning processes and assessment practices of apprentices in Norwegian vocational education and training. Although these intermediate structures have the potential to bridge the gap between work and education,…

  10. Just Do It? Impact of a Science Apprenticeship Program on High School Students' Understandings of the Nature of Science and Scientific Inquiry.

    Science.gov (United States)

    Bell, Randy L.; Blair, Lesley M.; Crawford, Barbara A.; Lederman, Norman G.

    2003-01-01

    Explicates the impact of an 8-week science apprenticeship program on a group of high-ability secondary students' understanding of the nature of science and scientific inquiry. Reports that although most students did appear to gain knowledge about the process of scientific inquiry, their conceptions about key aspects of the nature of science…

  11. A Comparison of Student Outcomes and Overall Retention between a 10-Week Accelerated and a 15-Week Traditional Curriculum in a Postsecondary Apprenticeship Training Program

    Science.gov (United States)

    Adams, Gilbert L.

    2013-01-01

    This ex post facto comparison study of a postsecondary apprenticeship program at a naval ship construction company examined 8 years of academic performance and program completion data for two curricular formats: a 15-week traditional group (1,259 apprentices) and a 10-week accelerated group (736 apprentices). The two groups were investigated to…

  12. The Dominance of Apprenticeships in the German VET System and Its Implications for Europeanisation: A Comparative View in the Context of the EQF and the European LLL Strategy

    Science.gov (United States)

    Deissinger, Thomas; Heine, Robin; Ott, Mariska

    2011-01-01

    Germany's apprenticeship system is and has always been considered to be the major sub-system of VET. In this context, the debate circling around the European and German Qualifications Framework (EQF and DQR) has become one of the central issues of VET research and policy. Tasks take on a concrete shape if (a) a serious approach is adopted towards…

  13. Two Countries--One System of Vocational Education? A Comparison of the Apprenticeship Reform in the Commercial Sector in Switzerland and Germany

    Science.gov (United States)

    Pilz, Matthias

    2007-01-01

    In both Switzerland and Germany, necessary reforms in vocational education have been taking place for the past few years. By taking a closer look at the commerce sectors of both countries and their reforms, one can better compare their systems of apprenticeship. While the necessity for change in the commercial sector was similar in both countries,…

  14. Evaluating the Integration of Key Skills and NVQs into an Undergraduate Degree Programme: A Case Study from the Graduate Apprenticeship Initiative.

    Science.gov (United States)

    Thomas, Sarah; Grimes, Darren

    2003-01-01

    Graduate apprenticeships in a British college's hospitality management course involved integration of key skills and National Vocational Qualifications units. Qualitative and quantitative data from seven students indicated they felt that integration enabled formal recognition of competency, provided valuable managerial experience, and facilitated…

  15. Assisted Living

    Science.gov (United States)

    ... overwhelming majority of residents are female. Assisted Living Philosophy The philosophy of assisted living is to provide personalized, resident ... loved ones to learn about the care provider philosophy . Freedom of Choice The most progressive state regulations ...

  16. Assistive Technology

    Science.gov (United States)

    ... Page Resize Text Printer Friendly Online Chat Assistive Technology Assistive technology (AT) is any service or tool that helps ... be difficult or impossible. For older adults, such technology may be a walker to improve mobility or ...

  17. Surgical Assisting

    Science.gov (United States)

    ... specific training over and above a degree in science, nursing, physician assisting, or another health profession. Prerequisites . Recommended eligibility requirements for admission into a surgical assisting program are: Bachelor of Science degree (or higher) Associate degree in an allied ...

  18. Investigating the effects of cognitive apprenticeship-based instructional coaching on science teaching efficacy beliefs

    Science.gov (United States)

    Cooper, Teo O. H.

    The overall purpose of this collected papers dissertation was to examine the utility of a cognitive apprenticeship-based instructional coaching (CAIC) model for improving the science teaching efficacy beliefs (STEB) of preservice and inservice elementary teachers. Many of these teachers perceive science as a difficult subject and feel inadequately prepared to teach it. However, teacher efficacy beliefs have been noted as the strongest indicator of teacher quality, the variable most highly correlated with student achievement outcomes. The literature is scarce on strong, evidence-based theoretical models for improving STEB. This dissertation is comprised of two studies. STUDY #1 was a sequential explanatory mixed-methods study investigating the impact of a reformed CAIC elementary science methods course on the STEB of 26 preservice teachers. Data were collected using the Science Teaching Efficacy Belief Instrument (STEBI-B) and from six post-course interviews. A statistically significant increase in STEB was observed in the quantitative strand. The qualitative data suggested that the preservice teachers perceived all of the CAIC methods as influential, but the significance of each method depended on their unique needs and abilities. STUDY #2 was a participatory action research case study exploring the utility of a CAIC professional development program for improving the STEB of five Bahamian inservice teachers and their competency in implementing an inquiry-based curriculum. Data were collected from pre- and post-interviews and two focus group interviews. Overall, the inservice teachers perceived the intervention as highly effective. The scaffolding and coaching were the CAIC methods portrayed as most influential in developing their STEB, highlighting the importance of interpersonal relationship aspects in successful instructional coaching programs. The teachers also described the CAIC approach as integral in supporting their learning to implement the new inquiry

  19. Ventricular assist device

    Science.gov (United States)

    VAD; RVAD; LVAD; BVAD; Right ventricular assist device; Left ventricular assist device; Biventricular assist device; Heart pump; Left ventricular assist system; LVAS; Implantable ventricular assist device

  20. Bridging the Gap between Work and Education in Vocational Education and Training. A study of Norwegian Apprenticeship Training Offices and E-Portfolio Systems

    OpenAIRE

    Hæge Nore; Leif Christian Lahn

    2015-01-01

    This article explores the effect that the use of e-portfolios initiated and organized by apprenticeship training offices has had on the learning processes and assessment practices of apprentices in Norwegian vocational education and training. Although these intermediate structures have the potential to bridge the gap between work and education, they seem to maintain a system of two parallel learning arenas. However, the article summarizes the innovative effects of these transformations as sup...

  1. Social origin and access to upper secondary education in Switzerland: a comparison of company-based apprenticeship and exclusively school-based programmes

    OpenAIRE

    Hupka-Brunner, S; Sacchi, S.; Stalder, B.

    2010-01-01

    When making the transition from compulsory school to upper secondary education and training, young people in Switzerland have two main options: company-based apprenticeships or exclusively school-based programmes. Based on Bourdieu, we assume that schools and training firms each have their own particular selection procedures. We expect these different procedures to change the patterns of the influence of social origin on transition – even when controlling school achievement. We...

  2. Biogeochemical Cycling

    Science.gov (United States)

    Bebout, Brad; Fonda, Mark (Technical Monitor)

    2002-01-01

    This lecture will introduce the concept of biogeochemical cycling. The roles of microbes in the cycling of nutrients, production and consumption of trace gases, and mineralization will be briefly introduced.

  3. Tritium-assisted fusion breeders

    International Nuclear Information System (INIS)

    This report undertakes a preliminary assessment of the prospects of tritium-assisted D-D fuel cycle fusion breeders. Two well documented fusion power reactor designs - the STARFIRE (D-T fuel cycle) and the WILDCAT (Cat-D fuel cycle) tokamaks - are converted into fusion breeders by replacing the fusion electric blankets with 233U producing fission suppressed blankets; changing the Cat-D fuel cycle mode of operation by one of the several tritium-assisted D-D-based modes of operation considered; adjusting the reactor power level; and modifying the resulting plant cost to account for the design changes. Three sources of tritium are considered for assisting the D-D fuel cycle: tritium produced in the blankets from lithium or from 3He and tritium produced in the client fission reactors. The D-D-based fusion breeders using tritium assistance are found to be the most promising economically, especially the Tritium Catalyzed Deuterium mode of operation in which the 3He exhausted from the plasma is converted, by neutron capture in the blanket, into tritium which is in turn fed back to the plasma. The number of fission reactors of equal thermal power supported by Tritium Catalyzed Deuterium fusion breeders is about 50% higher than that of D-T fusion breeders, and the profitability is found to be slightly lower than that of the D-T fusion breeders

  4. The study on reform trend of British modern apprenticeship-Trailblazers%英国现代学徒制改革趋势研究:基于开拓者项目的分析

    Institute of Scientific and Technical Information of China (English)

    苑大勇

    2014-01-01

    The British apprenticeship has a well development conditional. It has formed basic framework of modern apprenticeship. Such as organization, funding mechanisms and the number of apprenticeship training has also in-creasing, but still need to rethink and progress. In March 2014, at the government of UK national apprentice week, announced that the Great Britain will push the blazers apprenticeship reform project ( Trailblazers) model. Implementation of this project is solving the problem of the apprenticeship training quality problem. Meanwhile, make sure enterprises become the dominant force in apprenticeship and simplify the existing system of apprentice-ship. Trailblazers had chosen eight industries as a pilot. The eight industry led by enterprises to design the ability of the apprenticeship standards, cultivation path and the way of evaluation. These measures have some well effect for reform of apprenticeship. It also bring some good opinions.%英国学徒制当前发展态势很好,形成了现代学徒制的基本框架、组织机构、拨款机制,并且参加学徒制培训的人数在不断增加,但是依旧需要反思和进步。2014年3月英国政府的全国学徒周上,宣布英国要推行开拓者项目( Trailblazers)模式的学徒制改革。该项目的实施是为了解决学徒制的培养质量问题,保证企业成为学徒制的主导力量,并且简化已有的学徒制的体系,开拓者项目第一批选取了8个行业作为试点,这8个行业都由企业牵头设计学徒制的能力标准、培养路径、评价方式等。从英国当前开拓者项目的发展情况来看,如何调动企业积极性、让各个利益相关方都能在学徒制改革中发挥作用,英国的做法给了中国职业教育研究者一些启示。

  5. Assisted Ventilation.

    Science.gov (United States)

    Dries, David J

    2016-01-01

    Controlled Mechanical Ventilation may be essential in the setting of severe respiratory failure but consequences to the patient including increased use of sedation and neuromuscular blockade may contribute to delirium, atelectasis, and diaphragm dysfunction. Assisted ventilation allows spontaneous breathing activity to restore physiological displacement of the diaphragm and recruit better perfused lung regions. Pressure Support Ventilation is the most frequently used mode of assisted mechanical ventilation. However, this mode continues to provide a monotonous pattern of support for respiration which is normally a dynamic process. Noisy Pressure Support Ventilation where tidal volume is varied randomly by the ventilator may improve ventilation and perfusion matching but the degree of support is still determined by the ventilator. Two more recent modes of ventilation, Proportional Assist Ventilation and Neurally Adjusted Ventilatory Assist (NAVA), allow patient determination of the pattern and depth of ventilation. Proposed advantages of Proportional Assist Ventilation and NAVA include decrease in patient ventilator asynchrony and improved adaptation of ventilator support to changing patient demand. Work of breathing can be normalized with these modes as well. To date, however, a clear pattern of clinical benefit has not been demonstrated. Existing challenges for both of the newer assist modes include monitoring patients with dynamic hyperinflation (auto-positive end expiratory pressure), obstructive lung disease, and air leaks in the ventilator system. NAVA is dependent on consistent transduction of diaphragm activity by an electrode system placed in the esophagus. Longevity of effective support with this technique is unclear. PMID:25501776

  6. Assisted reproduction in Hong Kong: Status in the 1990s

    OpenAIRE

    Loong, EPL; Haines, CJ; Chiu, TYT; Wong, SP; Cheung, LP; So, WWK; Lau, E.; Ng, V; Leung, CKM; Leong, MKH; Wong, CJY; Tang, WWC; Chun, MMP; Ho, PC; Yeung, WSB

    1996-01-01

    Information on assisted reproduction in Hong Kong for the period from January 1992 to December 1993 was collected from the three centres that offer assisted reproduction. Altogether, 912 treatment cycles of in vitro fertilisation and embryo transfer, 158 treatment cycles of gamete intrafallopian transfer, and 87 cycles of zygote intrafallopian transfer were initiated during this period. The delivery rates per cycle started were 8.4% for in vitro fertilisation, 29.1% for gamete intrafallopian ...

  7. FES cycling.

    Science.gov (United States)

    Newham, D J; Donaldson, N de N

    2007-01-01

    Spinal cord injury (SCI) leads to a partial or complete disruption of motor, sensory, and autonomic nerve pathways below the level of the lesion. In paraplegic patients, functional electrical stimulation (FES) was originally widely considered as a means to restore walking function but this was proved technically very difficult because of the numerous degrees of freedom involved in walking. FES cycling was developed for people with SCI and has the advantages that cycling can be maintained for reasonably long periods in trained muscles and the risk of falls is low. In the article, we review research findings relevant to the successful application of FES cycling including the effects on muscle size, strength and function, and the cardiovascular and bone changes. We also describe important practical considerations in FES cycling regarding the application of surface electrodes, training and setting up the stimulator limitations, implanted stimulators and FES cycling including FES cycling in groups and other FES exercises such as FES rowing.

  8. Hearing Assistive Technology

    Science.gov (United States)

    ... for the Public / Hearing and Balance Hearing Assistive Technology Hearing Assistive Technology: FM Systems | Infrared Systems | Induction ... Assistive Technology Systems Solutions What are hearing assistive technology systems (HATS)? Hearing assistive technology systems (HATS) are ...

  9. Using M-learning as a Means to Promote Self-direction and Engagement in Apprenticeship Theoretical Lessons

    Directory of Open Access Journals (Sweden)

    Alan O'Donnell

    2014-06-01

    Full Text Available An exploratory case study was carried out to investigate if the use of mobile phones as a tool for learning could address concerns over the current learning of the carpentry and joinery apprentices in the Dublin Institute of Technology. The concerns are regarding a lack of learner self-direction and engagement with the learning content. A high level of mobile phone usage was apparent among the apprentice cohort. It was decided to take advantage of the potential learning opportunity offered by mobile technologies to promote the learning and engagement of the apprentices. Towards this goal, a compatible resource was developed, hosting presentations, course content, videos and questions. This study explored the views of the learners in the carpentry and joinery trade apprenticeship and their attitudes towards developing an m-learning resource. The aim of the research was to explore if this m-learning resource encouraged self-direction and engagement. Further objectives of this study were to establish a start point for further research projects and resource development.

  10. Cycling more for safer cycling

    OpenAIRE

    VAN HOUT, Kurt

    2009-01-01

    Cycling presents a lot of benefits to the individual and to society. Health, environment, accessibility, local businesses, … all gain when more people cycle. Yet many governments are reluctant when it comes to promoting cycling, mainly because of (perceived) safety issues. Since studies have established a clear and consistent relationship between bicycle use and cyclist accident risk, this lack of bicycle promotion will influence the safety outcome of bicyclists. In this paper the relation be...

  11. Situated cognition and cognitive apprenticeship: a model for teaching and learning clinical skills in a technologically rich and authentic learning environment.

    Science.gov (United States)

    Woolley, Norman N; Jarvis, Yvonne

    2007-01-01

    The acquisition of a range of diverse clinical skills is a central feature of the pre-registration nursing curriculum. Prior to exposure to clinical practice, it is essential that learners have the opportunity to practise and develop such skills in a safe and controlled environment under the direction and supervision of clinical experts. However, the competing demands of the HE nursing curriculum coupled with an increased number of learners have resulted in a reduced emphasis on traditional apprenticeship learning. This paper presents an alternative model for clinical skills teaching that draws upon the principles of cognitive apprenticeship [Collins, A., Brown, J.S., Newman, S., 1989. Cognitive Apprenticeship: teaching the crafts of reading, writing and mathematics. In: Resnick, L.B. (Ed.) Knowing. Learning and Instruction: Essays in Honor of Robert Glaser. Lawrence Erlbaum Associates, New Jersey, pp. 453-494] and situated cognition within a technologically rich and authentic learning environment. It will show how high quality DVD materials illustrating clinical skills performed by expert practitioners have been produced and used in conjunction with CCTV and digital recording technologies to support learning within a pedagogic framework appropriate to skills acquisition. It is argued that this model not only better prepares the student for the time they will spend in the practice setting, but also lays the foundation for the development of a clinically competent practitioner with the requisite physical and cognitive skills who is fit for purpose [UKCC, 1999. Fitness for Practice: The UKCC Commission for Nursing and Midwifery Education. United Kingdom Central Council for Nursing Midwifery and Health Visiting, London].

  12. 现代学徒制项目实施存在的问题及对策%Problems and Countermeasures in Modern Apprenticeship Project Implementation

    Institute of Scientific and Technical Information of China (English)

    李传伟; 董先; 徐桂洪

    2016-01-01

    现代学徒制是企业和学校双方合作式的职业教育制度,综合了学历职业教育和企业师傅带徒弟的优点,是一种理想的职业教育形式。本校实行招生与招工一体化,改革工学结合人才培养模式,推进校企互聘的师资队伍建设,制定与现代学徒制相适应的教学管理文件。对于在实施现代学徒过程中遇到的问题,进行了认真分析,对于校企联合招生、联合培养、一体化育人的机制进行深入研究并给出相应对策,提出了校企互聘互用的“双师型”师资队伍建设办法,制定了学徒培养的教学文件、管理制度及相关标准。%Modern apprenticeship is a cooperative vocational education system between enterprise and college. It combines both advantages of degree vocational education and enterprise apprenticeship, and is an ideal vocational education mode. We integrate college admission and enterprise recruitment, innovate the combining talent cultivation mode between working and learning, promote the inter-recruiting faculty building between college and enterprise, and make teaching administration files in accordance with modern apprenticeship. Faced with problems in implementing modern apprenticeship, we carefully analyze them, explore and put forward an integrative cultivating system and “double-teaching troops” between college and enterprise, and make teaching files, administrative system and associating standard that facilitate apprentice cultivation.

  13. Fuel cycles

    International Nuclear Information System (INIS)

    AECL publications, from the open literature, on fuels and fuel cycles used in CANDU reactors are listed in this bibliography. The accompanying index is by subject. The bibliography will be brought up to date periodically

  14. Fes cycling

    Directory of Open Access Journals (Sweden)

    Berkelmans Rik

    2008-01-01

    Full Text Available Many research with functional electrical stimulation (FES has been done to regain mobility and for health benefits. Better results have been reported for FES-cycling than for FES-walking. The majority of the subjects during such research are people with a spinal cord injury (SCI, cause they often lost skin sensation. Besides using surface stimulation also implanted stimulators can be used. This solves the skin sensation problem, but needs a surgery. Many physiological effects of FES-cycling has been reported, e.g., increase of muscles, better blood flow, reduction of pressure ulcers, improved self-image and some reduction of bone mineral density (BMD loss. Also people with an incomplete SCI benefit by FES-cycling, e.g. cycling time without FES, muscle strength and also the walking abilities increased. Hybrid exercise gives an even better cardiovascular training. Presently 4 companies are involved in FES-cycling. They all have a stationary mobility trainer. Two of them also use an outdoor tricycle. One combined with voluntary arm cranking. By optimizing the stimulation parameters the power output and fatigue resistance will increase, but will still be less compared to voluntary cycling.

  15. Sourcing homegrown talent : partnering with educational institutions to develop unique academic and apprenticeship programs for the energy industry

    Energy Technology Data Exchange (ETDEWEB)

    Anderson, D. [Southern Alberta Inst. of Technology, Calgary, AB (Canada)

    2004-07-01

    The Southern Alberta Institute of Technology (SAIT) is a world leader in providing skilled workers to industry and has a graduate employment rate of 97 per cent. This paper reviews employment opportunities and factors contributing to skills shortages in the energy sector which include: new technologies; new processes; baby-boomers leaving the market in great numbers; new drilling records; changing regulations; the Canada/Alaska pipelines; and growth in developing countries. It was also noted that more than 8,000 full-time positions will be created in the oil sands region of Alberta, with 25,000-30,000 jobs available during construction. However, government sets academic capacity, and there is competition for government funds. There are also increasing workforce qualifications. Examples of academic capacity in SAIT were provided. A comparison of oil patch demand versus SAIT supply was provided. Continuing education in Alberta was outlined, with details of re-training and apprenticeship programs. Issues concerning career pathways and pre-employment training were discussed, with reference to partnerships with high schools and module-based distance learning systems. Issues concerning Aboriginal programs were also examined. In addition, SAIT is moving towards the standardization of an electronic learning model using WebCT. Issues concerning granting status were also addressed and relationships with industry were discussed. Details of the Wellsite Production Education Technology Centre were presented and various advisory committees were outlined. Details of the ExxonMobil Calgary Campus were presented. Curriculum licensing with the University of Trinidad and Tobago was reviewed and the SAIT campus in Kazakhstan was described. It was concluded that future demand for training will be unprecedented and that innovation and commitment to excellence will be key. An energy training summit will be held in early 2005, to examine issues surrounding the provision of skilled labour

  16. Learning through inter- and intradisciplinary problem solving: using cognitive apprenticeship to analyse doctor-to-doctor consultation.

    Science.gov (United States)

    Pimmer, Christoph; Pachler, Norbert; Nierle, Julia; Genewein, Urs

    2012-12-01

    Today's healthcare can be characterised by the increasing importance of specialisation that requires cooperation across disciplines and specialities. In view of the number of educational programmes for interdisciplinary cooperation, surprisingly little is known on how learning arises from interdisciplinary work. In order to analyse the learning and teaching practices of interdisciplinary cooperation, a multiple case study research focused on how consults, i.e., doctor-to-doctor consultations between medical doctors from different disciplines were carried out: semi-structured interviews with doctors of all levels of seniority from two hospital sites in Switzerland were conducted. Starting with a priori constructs based on the 'methods' underpinning cognitive apprenticeship (CA), the transcribed interviews were analysed according to the principles of qualitative content analysis. The research contributes to three debates: (1) socio-cognitive and situated learning, (2) intra- and interdisciplinary learning in clinical settings, and (3), more generally, to cooperation and problem solving. Patient cases, which necessitate the cooperation of doctors in consults across boundaries of clinical specialisms, trigger intra- as well as interdisciplinary learning and offer numerous and varied opportunities for learning by requesting doctors as well as for on-call doctors, in particular those in residence. The relevance of consults for learning can also be verified from the perspective of CA which is commonly used by experts, albeit in varying forms, degrees of frequency and quality, and valued by learners. Through data analysis a model for collaborative problem-solving and help-seeking was developed which shows the interplay of pedagogical 'methods' of CA in informal clinical learning contexts.

  17. Assisted hatching in assisted reproduction: a state of the art.

    Science.gov (United States)

    Hammadeh, Mohamad Eid; Fischer-Hammadeh, Constanze; Ali, Khaled Refaat

    2011-02-01

    The World Health Organization estimates that one in six couples experience some delay in conception and an increasing number require treatment by the assisted conception (AC) procedures of in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI).The implantation rate of embryos resulting from in vitro fertilization cycles is generally less than 20%. The exposure of oocytes and embryos to the artificial conditions of in vitro culture may have negative effects on the embryo's ability to undergo normal hatching, resulting in low rates of implantation following IVF and embryo transfer. Human embryos resulting from superovulation develop more slowly in vitro compared to embryos in vivo, manifest a relatively high degree of cytogenetic abnormalities and undergo cellular fragmentation. Artificially disrupting the zona pellucida is known as assisted hatching (AH) and there is some evidence that embryos that have undergone zona manipulation for assisted hatching tend to implant one day earlier than unhatched embryos. A variety of techniques have since been employed to assist embryo hatching, including partial mechanical zona dissection, zona drilling and zona thinning, making use of acid tyrodes, proteinases, piezon vibrator manipulators and lasers. This review will consider the impact of IVF conditions on zona pellucida physiology, zona hardening, different techniques of assisted hatching, who may benefit from assisted hatching and potential hazards.

  18. CERN apprenticeships honoured at the Cité des Métiers

    CERN Multimedia

    2006-01-01

    Florian Métral, an electronics apprentice at CERN, accepting his prize at the award ceremony.CERN's exhibition stand at the Cité des Métiers et des Formations. CERN has just taken part in the Cité des Métiers et des Formations for the first time. This job and training fair, designed to assist both young people and adults in their choice of profession, training or career change, was held at Palexpo, Geneva's main exhibition centre, from 13 to 19 November. CERN had its own stand, where the Laboratory's activities and its many different trades and training opportunities were on display. Throughout the week and the weekend, a series of guides and members of the HR Department took it in turns to present CERN and the wide range of training it offers students and apprentices. Apprentices came into the spotlight on 13 November, when the Union Industrielle Genevoise awarded prizes to the eight most meritorious apprentices in the field of mecatronics (mechanical and electronics engineering) in the Canton of Gene...

  19. 加拿大学徒制的问题、对策选择及启示%Issues and Strategies of Apprenticeship in Canada

    Institute of Scientific and Technical Information of China (English)

    童学敏

    2012-01-01

    通过对1991年至2007年加拿大的学徒制发展情况分析,指出加拿大学徒制面临完成率低、花费高、风险大、认同程度低等问题。加拿大联邦政府针对这些问题,采取了明确学徒制目的、降低企业成本、强化地方政府职能和发挥行业作用等措施并取得了一定的成效。这对我国职业教育的改革发展有所启示。%This article draws on the latest data from Statistics Canada's Registered Apprenticeship Information System (RAIS) to examine trends in apprenticeship training in Canada over the 1991 to 2007 period. The author thinks there are issues about low fulfillment rate, high cost ,big risks and lower level agrees. Canada Federation government takes measures such as giving a definite purpose, reducing the cost, stressing the functions of local governments. These measures make some progress. All these will extend our vision in reform and development of higher vocational education.

  20. Koszul cycles

    CERN Document Server

    Bruns, Winfreid; Römer, Tim

    2010-01-01

    We prove regularity bounds for Koszul cycles holding for every ideal of dimension at most 1 in a polynomial ring. We generalize the lower bound for the Green-Lazarsfeld index of Veronese rings we proved in arXiv:0902.2431 to the multihomogeneous setting.

  1. Happy Cycling

    DEFF Research Database (Denmark)

    Geert Jensen, Birgitte; Nielsen, Tom

    2013-01-01

    og Interaktions Design, Aarhus Universitet under opgave teamet: ”Happy Cycling City – Aarhus”. Udfordringen i studieopgaven var at vise nye attraktive løsningsmuligheder i forhold til cyklens og cyklismens integration i byrum samt at påpege relationen mellem design og overordnede diskussioner af...

  2. Glacial cycles

    DEFF Research Database (Denmark)

    Kaufmann, R. K.; Juselius, Katarina

    and compare the accuracy of their in-sample simulations. Results indicate that strong statistical associations between endogenous climate variables are not enough for statistical models to reproduce glacial cycles. Rather, changes in solar insolation associated with changes in Earth's orbit are needed...

  3. Sulfur cycle

    Digital Repository Service at National Institute of Oceanography (India)

    LokaBharathi, P.A.

    Ecological Society Symposium held jointly with the Linnean Society of London. Oxford: Blackwell. Huston MH and Smith T (1987) Plant succession: Life history and competition. American Naturalist 130: 168–198. Sulfur Cycle P A Loka Bharathi, National Institute.... Vegetatio 110: 115–147. Odum EP (1969) The strategy of ecosystem development. Science 164: 262–270. Walker KR and Alberstadt LP(1975) Ecological succession asan aspect of structure in fossil communities. Paleobiology 1: 238–257. Author's personal copy S 4 O...

  4. Physician-Assisted Death

    OpenAIRE

    Senn, John S.

    1994-01-01

    Physician-assisted death includes both euthanasia and assistance in suicide. The CMA urges its members to adhere to the principles of palliative care. It does not support euthanasia and assisted suicide. The following policy summary includes definitions of euthanasia and assisted suicide, background information, basic ethical principles and physician concerns about legalization of physician-assisted death.

  5. Modern Apprenticeship Implementation Essentials and Solutions in Ceramic art and design specialty%陶瓷艺术设计专业现代学徒制实施要点及解决思路

    Institute of Scientific and Technical Information of China (English)

    田秀萍; 孙秀春

    2014-01-01

    现代学徒是将传统的学徒培训方式与现代的学校教育相结合,形成的一种学校与企业合作式的职业教育形式,以工学交替为主要特征,是对传统学徒制教育的发展。陶瓷艺术设计职业教育不仅是单纯的技艺传授和学识的培养,更是一种职业训练教育。在实施现代学徒制教学模式过程中要面对企业资格、师傅标准、教学组织、校企互动、评价考核等方面的问题,本文结合陶瓷艺术设计人才培养模式改革实践,对陶瓷艺术设计专业实施现代学徒的关键点和实施思路进行必要梳理,旨在为陶瓷艺术设计专业现代学徒制课题实施指明方向。%Modern apprenticeship, as the advanced form of traditional apprenticeship training, is the combination of traditional apprenticeship training and contemporary school education and it is operated as a cooperation by school and company, which is featured with the working-schooling alternation pattern. The ceramic art and design vocational education is not only of the technique teaching and knowledge cultivation but more of career training. The process of modern apprenticeship mainly involves in the aspects like enterprise qualification, mentor standards, teaching organization, interaction between school and enterprise, evaluation and assessment, etc. Referring to the ceramic art and design education reform practice, this thesis conduct an imperative clarification of the key points and implementation ideas in modern apprenticeship implementation, and thus it can indicate directions for the modern apprenticeship implementation.

  6. Safe cycling!

    CERN Document Server

    Anaïs Schaeffer

    2012-01-01

    The HSE Unit will be running a cycling safety campaign at the entrances to CERN's restaurants on 14, 15 and 16 May. Pop along to see if they can persuade you to get back in the saddle!   With summer on its way, you might feel like getting your bike out of winter storage. Well, the HSE Unit has come up with some original ideas to remind you of some of the most basic safety rules. This year, the prevention campaign will be focussing on three themes: "Cyclists and their equipment", "The bicycle on the road", and "Other road users". This is an opportunity to think about the condition of your bike as well as how you ride it. From 14 to 16 May, representatives of the Swiss Office of Accident Prevention and the Touring Club Suisse will join members of the HSE Unit at the entrances to CERN's restaurants to give you advice on safe cycling (see box). They will also be organising three activity stands where you can test your knowle...

  7. “Too busy to think, too tired to learn” - the attrition of the apprenticeship model of surgical training in the United Kingdom

    Directory of Open Access Journals (Sweden)

    Andrea Kelly

    2006-04-01

    Full Text Available Abstract: This article examines the notion of apprenticeship as experienced by trainee surgeons within the modern NHS, and attempts to demonstrate some unintended consequences of managerial target setting upon the training process. It argues that this situation is made more critical by the lack of explicit standards and curriculum by which trainees may assess their progress, and also that the potential grafting of behaviourist competence-based training models onto older notions of apprenticeship will be inadequate to meet the need for an holistic account of the development of professional practice. Alternative theoretical perspectives are examined, in particular social accounts of shared and collaborative expertise such as Lave and Wenger’s “community of practice” and Vygotsky’s thinking on the “zone of proximal development” with its emphasis on a highly active pedagogic role for both mentor and peers. A parallel is also suggested with Leder’s work on therapeutic discourse, in the sense that both patient and trainee actively construct shared interpretative modes with the doctor-mentor. These accounts challenge the traditional model of medical education which assumes a linear hierarchy of learning, effectively ignoring the cyclic nature of surgical development, and the mutual learning needs of “new comers” and “old-timers”. In order to initiate the modelling of surgical development, it is suggested that: • a dynamic and non-linear view of progress is required; • the link between formal structured training and opportunistic learning “on the job” is crucial; • assessment strategies are needed that promote, rather than hinder, the learning that derives from reflective practice.

  8. On the Function of VBSE Platform in Modern Apprenticeship System%浅析VBSE平台在现代学徒制中发挥的作用

    Institute of Scientific and Technical Information of China (English)

    孙明山; 周银燕

    2015-01-01

    After the review of modern apprenticeship literature and test case, this paper finds that, seeking and constructing the "physical" bridge of university-enterprise cooperation and creating the suitable environment for the implementation of modern apprentice system are the key to implement "new normal" of vocational education. So, the author puts forward that to build productive practice platform, it can have the opportunity to attract enterprises into the campus, and have the pilot work with schools. Aimed at the construction bottleneck of productive practice platform of economy and management specialty, the function of VBSE in training and social services is put forward. It can provide enabling environment for the implementation of modern apprenticeship in economy and management specialty.%本文在回顾有关现代学徒制文献和试点案例后发现,寻求并搭建校企合作的“物理”桥梁,创建适合现代学徒制实施的环境是实现职业教育“新常态”的关键。为此,笔者提出打造生产性实训平台,能够有机会吸引企业走进校园,与学校展开试点工作,并且针对经济管理类专业生产性实训平台的建设瓶颈,指出VBSE在实训和社会服务上的作用,能够为现代学徒制在经管类专业中的实施创造有利环境。

  9. Proportional assist ventilation as an aid to exercise training in severe chronic obstructive pulmonary disease

    OpenAIRE

    Hawkins, P.; Johnson, L.; Nikoletou, D; Hamnegard, C; Sherwood, R.; Polkey, M.; Moxham, J.

    2002-01-01

    Background: The effects of providing ventilatory assistance to patients with severe chronic obstructive pulmonary disease (COPD) during a high intensity outpatient cycle exercise programme were examined.

  10. 长方案IVF/ICSI周期中获卵数与助孕结局的关系%Relationship between Numbers of Retrieved Oocytes and Outcomes of Assisted Reproduction in IVF/ICSI Cycles

    Institute of Scientific and Technical Information of China (English)

    倪佳; 黄静; 何钰辉; 柳胜贤

    2015-01-01

    目的:研究和分析长方案体外受精-胚胎移植(IVF/ICSI-ET)周期不同获卵数目与受精率、卵裂率、优质胚胎率、周期冷冻率、移植胚胎数、着床率、临床妊娠率之间的关系。方法:对本院生殖中心2011年1月-2012年12月实施长方案有获卵的共786个IVF/ICSI-ET新鲜周期进行回顾性总结和分析,根据不同获卵数分为五组(A组1~4枚,B组5~10枚,C组11~15枚,D组16~20枚,E组>20枚),比较各组年龄、受精率、卵裂率、优质胚胎率、周期冷冻率、移植胚胎数及临床妊娠率。结果:获卵数随年龄增加呈下降趋势,但五组年龄、移植胚胎数比较差异无统计学意义(P>0.05);五组受精率、卵裂率、优质胚胎率、冷冻周期率及临床妊娠率比较差异均有统计学意义(P0.05).However,the differences in fertilization rates, cleavage rates,good quality embryo rates,freezing cycle rates and clinical pregnancy rates of the five groups were statistically significant(P<0.01).Group C had the highest clinical pregnancy rates while group A had the lowest.The clinical pregnancy rates of group B and D were higher than those in group E.Conclusion:In IVF/ICSI cycles,if we have the same number of effectively transferred embryos,the number of retrieved oocytes is closely related to laboratory indexes and clinical pregnancy rates.The best clinical outcome can be reached by obtaining a modest number of oocytes.

  11. Research on the Enlightenment of the Cognitive Apprenticeship on Social work Practice Education%认知学徒制对社工实习教育的启示探究

    Institute of Scientific and Technical Information of China (English)

    黄锦淑

    2014-01-01

    The development of social work practicum education has gone through from the period of traditional apprenticeship to the period of school education, the disconnection between theory and Practice were occurred. The cognitive apprenticeship can connect the traditional apprenticeship and school education so that it can help students to learn the knowledge as well as the skills to apply in the practical work. Basing on the framework of the cognitive apprenticeship, thinking about how to apply it in social work practicum education with the dimensions of content,method, sequencing and sociology, in order to bring up social worker with theory and skills.%社工实习教育的发展经历了“传统学徒式训练”阶段到“学校专业教育”阶段,存在理论与实践脱节的问题。认知学徒制教育模式将传统学徒制训练和学校专业教育有效连接起来,能够帮助学生把从学校所学知识与在实务工作中的运用联结起来。基于认知学徒制的基本框架,从内容、方法、顺序和社会性四个维度探究认知学徒制对社工实习教育的运用,有助于培养既有理论知识又有专业技能的社会工作者。

  12. Weatherization Apprenticeship Program

    Energy Technology Data Exchange (ETDEWEB)

    Watson, Eric J

    2012-12-18

    Weatherization improvement services will be provided to Native people by Native people. The proposed project will recruit, train and hire two full-time weatherization technicians who will improve the energy efficiency of homes of Alaska Natives/American Indians residing in the Indian areas, within the Cook Inlet Region of Alaska. The Region includes Anchorage as well as 8 small tribal villages: The Native Villages of Eklutna, Knik, Chickaloon, Seldovia, Ninilchik, Kenaitze, Salamatof, and Tyonek. This project will be a partnership between three entities, with Cook Inlet Tribal Council (CITC) as the lead agency: CITCA's Employment and Training Services Department, Cook Inlet Housing Authority and Alaska Works Partnership. Additionally, six of the eight tribal villages within the Cook Inlet Region of Alaska have agreed to work with the project in order to improve the energy efficiency of their tribally owned buildings and homes. The remaining three villages will be invited to participate in the establishment of an intertribal consortium through this project. Tribal homes and buildings within Anchorage fall under Cook Inlet Region, Inc. (CIRI) tribal authority.

  13. CERN apprenticeship scheme honoured

    CERN Multimedia

    2008-01-01

    Prestigious awards for two apprentices who did their practical training at CERN. Sylvain Heinzen, apprentice physics lab technician at CERN, receiving his award from Pierre-François UNGER, State Councillor responsible for the Federal Department of the Economy and Health. The other award-winner, Cédric Gerber, is on the right of the photo.Among Geneva’s top apprentices who were honoured by the Fondation sociale de l’Union industrielle genevoise (UIG) on 28 October this year, were two CERN apprentices. Electronics technician Cédric Gerber and physics lab technician Sylvain Heinzen both did their four-year sandwich course at CERN, obtaining their professional qualification, the Certificat fédéral de capacité (CFC), in June. On top of that, Cédric Gerber, who had been a particularly outstanding apprentice, received two further distinctions at the CFC awards ceremony - the State Council prize for achieving one of the top-ten o...

  14. From Lecturing to Apprenticeship

    DEFF Research Database (Denmark)

    Marchetti, Emanuela; Petersson, Eva

    2012-01-01

    Analysis of museum learning practice and related work has revealed that communication of historical processes resembles school teaching and it may hinder children's participation in museum learning activities. Starting from this issue, a new playful installation was designed actively involving a ...

  15. Unidirectional circulation in a prebiotic photochemical cycle

    OpenAIRE

    Careri, Giorgio; Wyman, Jeffries

    1985-01-01

    In this brief note, we suggest the possibility that a soliton-assisted unidirectional photochemical cycle has played a role in prebiotic evolution. This suggestion is based on a model calculation which is itself based on the detection of Davydov-type soliton overtones in acetanilide.

  16. Influence of Paternal Age on Assisted Reproduction Outcome

    Science.gov (United States)

    2007-08-01

    We Will Retrospectively Assess Our Databases in Our Clinic:; Instituto Valenciano de Infertilidad in Valencia (Spain); Searching for Assisted Reproduction Procedures; (IUI, Standard IVF/ICSI Cycles and Ovum Donation IVF/ICSI Cycles); Who Were Referred to Our Unit to Cryopreserve Sperm During the Period; From January 2000 to December 2006.

  17. From Research Assistant to Professional Research Assistance: Research Consulting as a Form of Research Practice

    Science.gov (United States)

    Pollon, Dawn E.; Herbert, Monique; Chahine, Saad; Falenchuk, Olesya

    2013-01-01

    Research assistantships have long been viewed as an extension of the formal education process, a form of apprenticeship, and a pathway into the professional practice of research in institutional settings. However, there are other contexts in which researchers practice research. This self-study documents the formative role research assistantships…

  18. ForeignAssistance.gov

    Data.gov (United States)

    US Agency for International Development — ForeignAssistance.gov provides a view of U.S. Government foreign assistance funds across agencies and enables users to explore, analyze, and review aid investments...

  19. Assisted Living Community Profile

    Science.gov (United States)

    ... for the Seniors Housing & Care Industry, reflects NCAL's philosophy of assisted living. 2 Data also from the ... Assisted Living Studies Clinical Practice Guidelines Health Information Technology In-Service Training Tools Periodicals State Regulatory Review ...

  20. Assisted Reproductive Technology (ART)

    Science.gov (United States)

    ... Information Clinical Trials Resources and Publications Assisted Reproductive Technology (ART) Skip sharing on social media links Share ... American Society for Reproductive Medicine. (2012). Assisted reproductive technologies: A guide for patients . Retrieved June 11, 2012, ...

  1. Water quality assessment of solar-assisted adsorption desalination cycle

    KAUST Repository

    Kim, Youngdeuk

    2014-07-01

    This study focuses on the water quality assessment (feed, product and brine) of the pilot adsorption desalination (AD) plant. Seawater from the Red Sea is used as feed to the AD plant. Water quality tests are evaluated by complying the Environmental Protection Agency (EPA) standards with major primary and secondary inorganic drinking water pollutants and other commonly tested water quality parameters. Chemical testing of desalinated water at the post desalination stage confirms the high quality of produced fresh water. Test results have shown that the adsorption desalination process is very effective in eliminating all forms of salts, as evidenced by the significant reduction of the TDS levels from approximately 40,000. ppm in feed seawater to less than 10. ppm. Test results exhibit extremely low levels of parameters which are generally abundant in feed seawater. The compositions of seawater and process related parameters such as chloride, sodium, bromide, sulfate, calcium, magnesium, and silicate in desalinated water exhibit values of less than 0.1. ppm. Reported conductivity measurements of desalinated water are comparable to distilled water conductivity levels and ranged between 2 and 6. μS/cm while TOC and TIC levels are also extremely low and its value is less than 0.5. ppm. © 2014 Elsevier B.V.

  2. Essays on economic cycles

    NARCIS (Netherlands)

    Groot, de E.A. (Bert)

    2006-01-01

    Schumpeter’s line of thought of multiple economic cycles is further investigated. The existence of multiple cycles in economic variables is demonstrated. In basic innovations five different cycles are found. Multiple cycle structures are shown in various macro-economic variables from the United King

  3. 中国古代艺徒制对构建现代学徒制的启示%Revelation on Chinese Ancient Apprenticeship to the Establishment of Modern Apprentice

    Institute of Scientific and Technical Information of China (English)

    张秀丽

    2015-01-01

    The establishment of Chinese modern apprenticeship not only learns from foreign experiences, but also learns from the history and development of itself. There were many useful experiences of Chinese ancient apprentice-ship. Ancient apprentice is an all -around talents training mode that combines skills operation and moral attain-ment. The features like “career practice”,“words and deeds”,“ability assessment”,“moral concept”which express in the process of feudal government marco-control makes a great influence and revelation on the es-tablishment of modern apprenticeship with China characteristics.%建立中国现代学徒制不仅要借鉴外国的经验,更多的是要从其自身的历史与嬗变中寻找能够借鉴的东西。中国古代艺徒制中就有许多值得借鉴之处。艺徒制作为集技能操作和德育素养于一体的全方位人才培养方式。其在官府宏观控制地实施过程中体现出来的“职业实践”、“言传身教”、“能力考评”、“德育观念”等特点至今有深刻的教育意义,对建立中国特色的现代学徒制有着重要的启示。

  4. The business cycle and the life cycle

    OpenAIRE

    Paul Gomme; Richard Rogerson; Peter Rupert; Randall Wright

    2004-01-01

    The paper documents how cyclical fluctuations in market work vary over the life cycle and then assesses the predictions of a life-cycle version of the growth model for those observations. The analysis yields a simple but striking finding. The main discrepancy between the model and that data lies in the inability of the model to account for fluctuations in hours for individuals in the first half of their life cycle. The predictions for those in the latter half of the life cycle are quite close...

  5. The Solar Cycle

    CERN Document Server

    Hathaway, David H

    2015-01-01

    The Solar Cycle is reviewed. The 11-year cycle of solar activity is characterized by the rise and fall in the numbers and surface area of sunspots. A number of other solar activity indicators also vary in association with the sunspots including; the 10.7cm radio flux, the total solar irradiance, the magnetic field, flares and coronal mass ejections, geomagnetic activity, galactic cosmic ray fluxes, and radioisotopes in tree rings and ice cores. Individual solar cycles are characterized by their maxima and minima, cycle periods and amplitudes, cycle shape, the equatorward drift of the active latitudes, hemispheric asymmetries, and active longitudes. Cycle-to-cycle variability includes the Maunder Minimum, the Gleissberg Cycle, and the Gnevyshev-Ohl (even-odd) Rule. Short-term variability includes the 154-day periodicity, quasi-biennial variations, and double-peaked maxima. We conclude with an examination of prediction techniques for the solar cycle and a closer look at cycles 23 and 24.

  6. Uso de antagonista de GnRH (cetrorelix em dose única para evitar ovulações prematuras em ciclos de fertilização assistida Single dose of GnRH antagonist (cetrorelix to avoid premature ovulation in assisted fertilization cycles

    Directory of Open Access Journals (Sweden)

    Pedro Luís Rosan

    2003-09-01

    gravidez foram semelhantes entre os dois grupos. Estudos prospectivos com maior número de pacientes são necessários para confirmar estes achados.PURPOSE: to verify the efficacy of a single subcutaneous dose of cetrorelix acetate to avoid premature ovulation in assisted fertilization cycles. METHODS: this is a prospective, controlled and randomized study, with 20 women undergoing ovarian stimulation for assisted fertilization, 10 of whom were submitted to classical GnRH agonist protocol (control group while 10 utilized a 3-mg subcutaneous dose of the GnRH antagonist on the 7th day of ovarian stimulation (cetrorelix group. Serum FSH, LH, estradiol and progesterone concentrations were assessed on the first, seventh, HCG administration and oocyte retrieval days. Both groups were compared for pituitary suppression (progesterone concentration on HCG day and assisted fertilization cycle performance (gonadotropin ampoules utilized, follicles over 18 mm, retrieved oocytes, fertilization, implantation and pregnancy rates, utilizing Mann-Whitney and Fisher exact tests. RESULTS: no significant difference was observed between control and cetrorelix groups, respectively, for medians of age (31.5 and 34 years, body mass index (24 and 22, gonadotropin ampoles utilized (34 and 32, follicles over 18 mm (3.5 and 3.3, retrieved oocytes (11 and 5, obtained embryos (4 and 3, fertilization (93,7 and 60%, p=0.07 and pregnancy rates (50 and 60%, p=0.07. Efficient pituitary blockade through the ovarian stimulation period was observed for both groups. CONCLUSIONS: these results confirm the efficacy of a 3-mg dose of cetrorelix acetate to prevent premature ovulation in patients undergoing assisted fertilization and suggest a tendency towards a smaller number of embryos and fertilization rates in the cetrorelix group than in the control group. Implantation and pregnancy rates were similar between groups. Other prospective studies with a greater number of patients should be performed to confirm

  7. 美国注册学徒制的演进轨迹与最新举措%The Evolution Path and Latest Policies of Registered Apprenticeship in the U.S.A

    Institute of Scientific and Technical Information of China (English)

    陈圆

    2015-01-01

    Modern apprenticeship has been acknowledged as the primary way of vocational training in developed countries. Since 1937, the operation of registered apprenticeship in the USA has shown the following tendency: the construction and manufacturing industries dominated while new industries underdeveloped; the overall operation declined though the effort of reform in 2008 seemed to be paying off to some extent and the developments among different stats are unequal. To meet the need of current and future economic and social development in the USA, the federal government launched a series of revitalization plans in 2014, including constructing the Registered Apprenticeship College Consortium which involves all the stakeholders as employers, industry associations, training institutions, community colleges, labor organizations, governments and etc., increasing government investment, expanding areas of implementation and rise space of apprenticeship vocational education.%现代学徒制是近年来发达国家职业教育的重要途径和主要手段。美国自1937年推行注册学徒制以来,呈现出建筑和制造行业占据主导而新兴行业发展不足、“08新政”成效初显但总体运行态势有所下滑、区域发展参差不齐的演进轨迹。为顺应美国当前和未来经济社会发展的需要,美国政府于2014年推出注册学徒制振兴计划,构建包含企业、行业协会、培训机构、社区大学、劳工组织和政府等单位与组织在内的“注册学徒计划-院校联盟”联盟,增加政府投入,扩大实施领域,拓宽上升通道。”

  8. Assistance Focus: Africa (Brochure)

    Energy Technology Data Exchange (ETDEWEB)

    2014-12-01

    The Clean Energy Solutions Center Ask an Expert service connects governments seeking policy information and advice with one of more than 30 global policy experts who can provide reliable and unbiased quick-response advice and information. The service is available at no cost to government agency representatives from any country and the technical institutes assisting them. This publication presents summaries of assistance provided to African governments, including the benefits of that assistance.

  9. LUCAS - Lund University Cardiopulmonary Assist System

    OpenAIRE

    Liao, Qiuming

    2011-01-01

    Lund University Cardiopulmonary Assist System (LUCAS) is a mechanical device providing automatic 5 cm deep chest compressions and active decompressions back to normal anatomical position with a frequency of 100 per minute, and a duty cycle of 50%, i.e., LUCAS is constructed to give chest compressions according to the latest international guidelines in cardiopulmonary resuscitation (CPR). The aim of the thesis was to study cardiac arrest using different porcine models of ventricular fi...

  10. Expectations of assisted conception for infertility.

    OpenAIRE

    Hull, M G; Eddowes, H. A.; Fahy, U.; Abuzeid, M. I.; Mills, M. S.; Cahill, D J; Fleming, C. F.; Wardle, P. G.; Ford, W. C.; McDermott, A.

    1992-01-01

    OBJECTIVE--To provide reliable prognostic information for couples seeking assisted conception. DESIGN--Analysis of four years' practice (1988-91). SETTING--Private university service linked with NHS reproductive medicine services. PATIENTS--804 couples with various causes of subfertility, median duration five years, median age of women 34 years. INTERVENTIONS--1280 completed cycles: 950 in vitro fertilisation, 144 gamete intrafallopian transfer, and 186 intrauterine insemination and superovul...

  11. Thermodynamic analysis of solar assisted multi-functional trigeneration system

    Directory of Open Access Journals (Sweden)

    Önder KIZILKAN

    2016-02-01

    Full Text Available In this study, modelling and thermodynamic analysis of solar assisted trigeneration system was carried out. The required thermal energy for gas and vapor cycles were supplied from solar tower which is a new concept for gas cycle applications. Additionally, an absorption refrigeration cycle, vapor production process, drying process and water heating process were integrated to the system. Energy and exergy efficiencies of the trigeneration system were determined by the application of first and second law analyses. The results showed that the gas cycle efficiency was found to be 31%, vapor cycle efficiency was found to be 28% and coefficient of performance (COP values of the refrigeration system was found to be 0.77. Also the highest exergy destruction rate was found to be 4154 kW in solar tower.Keywords: Solar tower, Trigeneration, Gas cycle, Vapor cycle, Energy, Exergy

  12. Solar cycle 25: another moderate cycle?

    CERN Document Server

    Cameron, Robert H; Schuessler, Manfred

    2016-01-01

    Surface flux transport simulations for the descending phase of cycle 24 using random sources (emerging bipolar magnetic regions) with empirically determined scatter of their properties provide a prediction of the axial dipole moment during the upcoming activity minimum together with a realistic uncertainty range. The expectation value for the dipole moment around 2020 $(2.5\\pm1.1\\,$G) is comparable to that observed at the end of cycle 23 (about $2\\,$G). The empirical correlation between the dipole moment during solar minimum and the strength of the subsequent cycle thus suggests that cycle 25 will be of moderate amplitude, not much higher than that of the current cycle. However, the intrinsic uncertainty of such predictions resulting from the random scatter of the source properties is considerable and fundamentally limits the reliability with which such predictions can be made before activity minimum is reached.

  13. Solar Cycle 25: Another Moderate Cycle?

    Science.gov (United States)

    Cameron, R. H.; Jiang, J.; Schüssler, M.

    2016-06-01

    Surface flux transport simulations for the descending phase of Cycle 24 using random sources (emerging bipolar magnetic regions) with empirically determined scatter of their properties provide a prediction of the axial dipole moment during the upcoming activity minimum together with a realistic uncertainty range. The expectation value for the dipole moment around 2020 (2.5 ± 1.1 G) is comparable to that observed at the end of Cycle 23 (about 2 G). The empirical correlation between the dipole moment during solar minimum and the strength of the subsequent cycle thus suggests that Cycle 25 will be of moderate amplitude, not much higher than that of the current cycle. However, the intrinsic uncertainty of such predictions resulting from the random scatter of the source properties is considerable and fundamentally limits the reliability with which such predictions can be made before activity minimum is reached.

  14. El aprendizaje on-line: oportunidades y retos en instituciones politécnicas Apprenticeship Students Learning On-line: Opportunities and Challenges for Polytechnic Institutions

    Directory of Open Access Journals (Sweden)

    Martha Burkle

    2011-10-01

    challenges and opportunities of delivering on-line and virtual content to apprentices in a Polytechnic institution. Due to the current financial recession, apprentices are going back to academia in order to update their skills, but these potential students are not willing to leave their workplace or their personal lives behind to study. In this context on-line delivery represents an opportunity to provide access to content without leaving the work environment. However, in order to be successful in providing on-line materials for apprentices, polytechnics around the world are facing two challenges: How to transform hands-on Learning skills to online Learning material, and how to provide a rich-engaging environment for this group of learners. But not only the learner expectations should be taken when designing on-line learning. Instructors play also a crucial role in this endeavor, as Web 2.0 technologies offer the instructor an entirely new role in teaching: that of a facilitator. In order to analyze apprenticeship students’ on-line learning, 57 on-line surveys were distributed among a group of students registered for on-line apprenticeship programs. The paper presents research findings and a comparison of these with a what the literature states regarding the new generation of learners and their use of technologies, and the behavior (learning preferences, learning styles, use of IT presented by the research sample. Innovative opportunities for learning at the workplace (such as recommendations and future areas of research are suggested.

  15. Assisted suicide and euthanasia.

    Science.gov (United States)

    van der Heide, Agnes

    2013-01-01

    Several countries have adopted laws that regulate physician assistance in dying. Such assistance may consist of providing a patient with a prescription of lethal medication that is self-administered by the patient, which is usually referred to as (physician) assistance in suicide, or of administering lethal medication to a patient, which is referred to as euthanasia. The main aim of regulating physician assistance in dying is to bring these practices into the open and to provide physicians with legal certainty. A key condition in all jurisdictions that have regulated either assistance in suicide or euthanasia is that physicians are only allowed to engage in these acts upon the explicit and voluntary request of the patient. All systems that allow physician assistance in dying have also in some way included the notion that physician assistance in dying is only accepted when it is the only means to address severe suffering from an incurable medical condition. Arguments against the legal regulation of physician assistance in dying include principled arguments, such as the wrongness of hastening death, and arguments that emphasize the negative consequences of allowing physician assistance in dying, such as a devaluation of the lives of older people, or people with chronic disease or disabilities. Opinion polls show that some form of accepting and regulating euthanasia and physician assistance in suicide is increasingly supported by the general population in most western countries. Studies in countries where physician assistance in dying is regulated suggest that practices have remained rather stable in most jurisdictions and that physicians adhere to the legal criteria in the vast majority of cases.

  16. Ventilator-associated lung injury during assisted mechanical ventilation.

    Science.gov (United States)

    Saddy, Felipe; Sutherasan, Yuda; Rocco, Patricia R M; Pelosi, Paolo

    2014-08-01

    Assisted mechanical ventilation (MV) may be a favorable alternative to controlled MV at the early phase of acute respiratory distress syndrome (ARDS), since it requires less sedation, no paralysis and is associated with less hemodynamic deterioration, better distal organ perfusion, and lung protection, thus reducing the risk of ventilator-associated lung injury (VALI). In the present review, we discuss VALI in relation to assisted MV strategies, such as volume assist-control ventilation, pressure assist-control ventilation, pressure support ventilation (PSV), airway pressure release ventilation (APRV), APRV with PSV, proportional assist ventilation (PAV), noisy ventilation, and neurally adjusted ventilatory assistance (NAVA). In summary, we suggest that assisted MV can be used in ARDS patients in the following situations: (1) Pao(2)/Fio(2) >150 mm Hg and positive end-expiratory pressure ≥ 5 cm H(2)O and (2) with modalities of pressure-targeted and time-cycled breaths including more or less spontaneous or supported breaths (A-PCV [assisted pressure-controlled ventilation] or APRV). Furthermore, during assisted MV, the following parameters should be monitored: inspiratory drive, transpulmonary pressure, and tidal volume (6 mL/kg). Further studies are required to determine the impact of novel modalities of assisted ventilation such as PAV, noisy pressure support, and NAVA on VALI. PMID:25105820

  17. Egress door opening assister

    Energy Technology Data Exchange (ETDEWEB)

    Allison, Thomas L.

    2015-10-06

    A door opening spring assistance apparatus is set forth that will automatically apply a door opening assistance force using a combination of rods and coil springs. The release of the rods by the coil springs reduces the force required to set the door in motion.

  18. Medical Assisting Program Guide.

    Science.gov (United States)

    Georgia Univ., Athens. Dept. of Vocational Education.

    This guide presents the standard curriculum for technical institutes in Georgia. The curriculum addresses the minimum competencies for a medical assisting program. The program guide is designed to relate primarily to the development of those skills needed by individuals in the medical assisting field, such as medical law and ethics, typing,…

  19. Cycling in Sydney, Australia

    Directory of Open Access Journals (Sweden)

    Alexis Zander

    2013-01-01

    Full Text Available Introduction. Cycling can be an enjoyable way to meet physical activity recommendations and is suitable for older people; however cycling participation by older Australians is low. This qualitative study explored motivators, enablers, and barriers to cycling among older people through an age-targeted cycling promotion program. Methods. Seventeen adults who aged 50–75 years participated in a 12-week cycling promotion program which included a cycling skills course, mentor, and resource pack. Semistructured interviews at the beginning and end of the program explored motivators, enablers, and barriers to cycling. Results. Fitness and recreation were the primary motivators for cycling. The biggest barrier was fear of cars and traffic, and the cycling skills course was the most important enabler for improving participants’ confidence. Reported outcomes from cycling included improved quality of life (better mental health, social benefit, and empowerment and improved physical health. Conclusions. A simple cycling program increased cycling participation among older people. This work confirms the importance of improving confidence in this age group through a skills course, mentors, and maps and highlights additional strategies for promoting cycling, such as ongoing improvement to infrastructure and advertising.

  20. Economic Impact Analysis of Marker-Assisted Breeding in Rice

    OpenAIRE

    Alpuerto, Vida; Norton, George W.; Alwang, Jeffrey Roger

    2008-01-01

    The benefits of developing and releasing salinity-tolerant and phosphorous-deficiency-tolerant rice in Bangladesh, India, Indonesia and the Philippines were estimated for marker-assisted breeding as compared to conventional breeding using economic surplus analysis. Marker-assisted breeding is estimated to save at least 2 to 3 years in the breeding cycle and result in incremental benefits over 25 years in the range of $300 to $800 million depending on the country, stress, and time lags. Salini...

  1. Life cycle assessment (LCA)

    DEFF Research Database (Denmark)

    Thrane, Mikkel; Schmidt, Jannick Andresen

    2004-01-01

    The chapter introduces Life Cycle Assessment (LCA) and its application according to the ISO 1404043 standards.......The chapter introduces Life Cycle Assessment (LCA) and its application according to the ISO 1404043 standards....

  2. 高职教育“现代学徒制”人才培养模式的探索与实践研究%Exploration and practice of "modern apprenticeship" personnel training mode of higher vocational education

    Institute of Scientific and Technical Information of China (English)

    郭涛; 吕海东; 孙丙虎

    2016-01-01

    高职教育中的现代学徒制是一种全新的人才培养模式,其涉及很多教学领域和教学内容,在利用这种人才培养模式进行人才培养的过程中,应该充分做好教学设计、资源保障以及教学制度建设等多方面内容。高职教育现代学徒制人才培养模式在我国高职教育系统中还是一项十分新颖的教学制度,在应用过程中仍存在不少问题,需要及时采取措施将其解决。%Modern apprenticeship of higher vocational education is a new training model, which involves a lot of teaching fields and teaching contents, using this personnel training model should fully prepare instructional design, resources security, teaching system construction and other aspects of teaching content. Modern apprenticeship of vocational education has still been a very new training mode in higher vocational education system, which still has many problems in the application process that needs us to take timely measures to resolve.

  3. On the Construction of Talent Training Mode of Vocational Education under the Modern Apprenticeship Framework%现代学徒制框架下职业教育人才培养模式建构探讨

    Institute of Scientific and Technical Information of China (English)

    王鹏; 吴书安; 李松良

    2015-01-01

    随着国家经济转型和产业升级换代的到来,现代学徒制人才培养模式可以在高技能人才培养方面发挥重要作用。实现人才培养与职业标准的对接,现代学徒制框架下需变学校招生为校企联合招生,从国家、地方和实施三个层面建立组织架构,重构课程体系,优化教师团队和实训条件,并建立多元评价标准。%With the national economic restructuring and industrial upgrading,the talent training mode of modern apprenticeship can play an important role in cultivating high-skilled talents. To link talents cultivation with vocational standards under the modern apprenticeship, it is necessary to change the recruitment subject from single school to the group of school and enterprise, establish the organizational structure from central government, local governments and implementing subject, reconstruct the curriculum system, optimize teaching staff and training condition, and establish the diverse evaluation mechanism.

  4. A Study on the Features of Rhyming in the Toast Speech for the Apprenticeship of Shui Scripts%水书启蒙拜师祝词押韵特点初探

    Institute of Scientific and Technical Information of China (English)

    王炳江

    2012-01-01

    水书启蒙拜师祝词是水书启蒙拜师仪式活动中水书先生根据仪式进程的各个阶段所祝诵的祭祀词。拜师祝词作为一种韵文体的民间文学口头文本,它具有韵文体所具有的一些普遍特征,同时又有其独特的表现形式。拜师祝词的押韵,不仅具有一般民族民间文学韵文体的腰韵、首尾韵、脚韵等押韵特点,同时又具有句首韵、句中韵、流水韵等特点,且句中韵表现为叠韵、隔一字押韵、隔两字或多字押韵等。%As an oral text,the toast speech for the apprenticeship of Shui Scripts is that for offering throughout the apprenticeship ritual,characterized with rhyming in a variety similar to that in national and folk literature.

  5. HIV Life Cycle

    Science.gov (United States)

    HIV Overview The HIV Life Cycle (Last updated 9/22/2015; last reviewed 9/22/2015) Key Points HIV gradually destroys the immune ... life cycle. What is the connection between the HIV life cycle and HIV medicines? Antiretroviral therapy (ART) ...

  6. Cycling To Awareness.

    Science.gov (United States)

    Kozak, Stan

    1999-01-01

    Encourages environmental and outdoor educators to promote bicycling. In the community and the curriculum, cycling connects environmental issues, health and fitness, law and citizenship, appropriate technology, and the joy of being outdoors. Describes the Ontario Cycling Association's cycling strategy and its four components: school cycling…

  7. FEMA Hazard Mitigation Assistance Flood Mitigation Assistance (FMA) Data

    Data.gov (United States)

    Department of Homeland Security — This dataset contains closed and obligated projects funded under the following Hazard Mitigation Assistance (HMA) grant programs: Flood Mitigation Assistance (FMA)....

  8. Social and Human Service Assistants

    Science.gov (United States)

    ... Similar Occupations More Info Summary Social and human service assistants help clients to identify and obtain benefits and services. Quick ... and Human Service Assistants Do Social and human service assistants provide client services, including support for families, in a wide ...

  9. Robotic assisted laparoscopic colectomy.

    LENUS (Irish Health Repository)

    Pandalai, S

    2010-06-01

    Robotic surgery has evolved over the last decade to compensate for limitations in human dexterity. It avoids the need for a trained assistant while decreasing error rates such as perforations. The nature of the robotic assistance varies from voice activated camera control to more elaborate telerobotic systems such as the Zeus and the Da Vinci where the surgeon controls the robotic arms using a console. Herein, we report the first series of robotic assisted colectomies in Ireland using a voice activated camera control system.

  10. Neural network prediction of solar cycle 24

    Institute of Scientific and Technical Information of China (English)

    A. Ajabshirizadeh; N. Masoumzadeh Jouzdani; Shahram Abbassi

    2011-01-01

    The ability to predict the future behavior of solar activity has become extremely import due to its effect on the environment near the Earth. Predictions of both the amplitude and timing of the next solar cycle will assist in estimating the various consequences of space weather. The level of solar activity is usually expressed by international sunspot number (Rz). Several prediction techniques have been applied and have achieved varying degrees of success in the domain of solar activity prediction.We predict a solar index (Rz) in solar cycle 24 by using a neural network method. The neural network technique is used to analyze the time series of solar activity. According to our predictions of yearly sunspot number, the maximum of cycle 24 will occur in the year 2013 and will have an annual mean sunspot number of 65. Finally, we discuss our results in order to compare them with other suggested predictions.

  11. Robot-Assisted Prostatectomy

    Medline Plus

    Full Text Available ... this da Vinci assisted laparoscopic radical prostatectomy. Our scrub, which is Alex Santander, our nurse anesthetist back ... Okay, Dr. Pinon, you’re going to come scrub in? Yes, I will, yes. Dr. Pinon is ...

  12. TADS and Technical Assistance.

    Science.gov (United States)

    Trohanis, Pascal L.

    1983-01-01

    Accomplishments of the Technical Assistance Development System (TADS) are cited, current challenges (including program development, and communication and coordination) are noted, and the mission mandated for TADS is outlined. (CL)

  13. Robot-Assisted Prostatectomy

    Medline Plus

    Full Text Available ... joysticks and his feet pressing on pedals to control these robotic instruments. There’s almost always an assistant ... Sure. To help divide the tissue and to control bleeding. Right now I’m going to clean ...

  14. Robot-Assisted Prostatectomy

    Medline Plus

    Full Text Available ... Robotic Surgery. My name is Dr. Andy Pinon. This is my partner, Dr. Darren Bruck. He’s going ... at the very beginning, helping us navigate through this da Vinci assisted laparoscopic radical prostatectomy. Our scrub, ...

  15. Homelessness Assistance and Resources

    Science.gov (United States)

    ... Performance Measure Resources View videos, programming specifications, an introductory guide, and more on how CoCs can measure ... a Program Affordable Housing Community Development Consolidated Planning Economic Development Environmental Review Financial Management Homelessness Assistance Rural ...

  16. [Assisted peritoneal dialysis].

    Science.gov (United States)

    Klarić, Dragan; Prkačin, Ingrid

    2014-04-01

    According to the National Registry of Renal Replacement Therapy (RRT), the incidence of chronic kidney disease (end-stage renal disease) and the need of RRT have declined in the last decade renal. One of the reasons for this tendency certainly is transplantation as the best choice. However, transplant procedure has limitations in elderly patients due to the number of comorbidities. This study was designed as retrospective analysis of outcomes in patients treated with peritoneal dialysis for a period of eleven years. Patients were divided into those who had been assisted or unassisted. Out of 100 patients treated with peritoneal dialysis (PD), 77 completed the treatment, including 26 assisted and 51 unassisted patients. Peritonitis was recorded in 20 assisted and 26 unassisted patients. Peritonitis was more common in unassisted patients, who were more frequently lost from PD. Assisted PD could be a good and safe choice of RRT in this special group of patients.

  17. Superfund Technical Assistance Grants

    Data.gov (United States)

    U.S. Environmental Protection Agency — This asset includes data related to the Superfund Technical Assistance Grant program, including grant number, award amounts, award dates, period of performance,...

  18. Financial Assistance Information

    Science.gov (United States)

    ... Other Sites: Genetic and Rare Diseases Information Center Financial Assistance Information The National Institutes of Health (NIH) ... area call 900-638-0742. Top of page Financial Aid for Medical Treatments Information on financial aid ...

  19. Robot-Assisted Prostatectomy

    Medline Plus

    Full Text Available Watch South Miami Hospital Surgeons Perform Robot-Assisted Prostatectomy South Miami Hospital Miami, FL January 19, 2010 Good afternoon. Welcome to the South Miami Hospital operating room, the Center ...

  20. Computer assisted radiology

    International Nuclear Information System (INIS)

    The proceedings of the CAR'93 symposium present the 126 oral papers and the 58 posters contributed to the four Technical Sessions entitled: (1) Image Management, (2) Medical Workstations, (3) Digital Image Generation - DIG, and (4) Application Systems - AS. Topics discussed in Session (1) are: picture archiving and communication systems, teleradiology, hospital information systems and radiological information systems, technology assessment and implications, standards, and data bases. Session (2) deals with computer vision, computer graphics, design and application, man computer interaction. Session (3) goes into the details of the diagnostic examination methods such as digital radiography, MRI, CT, nuclear medicine, ultrasound, digital angiography, and multimodality imaging. Session (4) is devoted to computer-assisted techniques, as there are: computer assisted radiological diagnosis, knowledge based systems, computer assisted radiation therapy and computer assisted surgical planning. (UWA). 266 figs

  1. Accessibility and assistive products

    Science.gov (United States)

    Rodríguez-Porrero, Cristina

    2009-01-01

    Introduction Accessibility and assistive products and technologies are needed to ensure the rights of persons with disabilities and older persons. Many developments have been implemented in laws, standards, markets and from the consumers perspective, at international, European and national levels. The real issue is that not all the potential users benefit from the use of assistive products or accessible measures. Discussion Innovative methods are needed to allow all potential users to have real advantage of assistive technologies and accessible and design for all facilities. Best practices will be presented and existing gaps and recommendations will be discussed. Cost-benefits aspects will also be presented. Conclusion In order to get advantages from opportunities of globalization, hard work and responsibilities of all stakeholders are needed, so that assistive products and accessibility reach a whole range of situations and environments and contribute to ensure quality of life in a society for all.

  2. Heteronuclear proton assisted recoupling

    OpenAIRE

    De Paëpe, Gaël; Lewandowski, Józef R.; Loquet, Antoine; Eddy, Matt; Megy, Simon; Böckmann, Anja; Griffin, Robert G.

    2011-01-01

    We describe a theoretical framework for understanding the heteronuclear version of the third spin assisted recoupling polarization transfer mechanism and demonstrate its potential for detecting long-distance intramolecular and intermolecular 15N–13C contacts in biomolecular systems. The pulse sequence, proton assisted insensitive nuclei cross polarization (PAIN-CP) relies on a cross term between 1H–15N and 1H–13C dipolar couplings to mediate zero- and/or double-quantum 15N–13C recoupling. In ...

  3. The Solar Cycle

    Directory of Open Access Journals (Sweden)

    David H. Hathaway

    2015-09-01

    Full Text Available The solar cycle is reviewed. The 11-year cycle of solar activity is characterized by the rise and fall in the numbers and surface area of sunspots. A number of other solar activity indicators also vary in association with the sunspots including; the 10.7 cm radio flux, the total solar irradiance, the magnetic field, flares and coronal mass ejections, geomagnetic activity, galactic cosmic ray fluxes, and radioisotopes in tree rings and ice cores. Individual solar cycles are characterized by their maxima and minima, cycle periods and amplitudes, cycle shape, the equatorward drift of the active latitudes, hemispheric asymmetries, and active longitudes. Cycle-to-cycle variability includes the Maunder Minimum, the Gleissberg Cycle, and the Gnevyshev–Ohl (even-odd Rule. Short-term variability includes the 154-day periodicity, quasi-biennial variations, and double-peaked maxima. We conclude with an examination of prediction techniques for the solar cycle and a closer look at cycles 23 and 24.

  4. Research on the Educational Humanitarianism of the Apprenticeship System%学徒制的教育人道主义研究

    Institute of Scientific and Technical Information of China (English)

    谢良才

    2015-01-01

    The spirit of educational humanitarianism emphasizes that cherishes everyone’s dignity, rights, liberty and value, it takes students and teachers as human beings, and teaching exists for humans and it makes man into man. The inherit process of traditional apprenticeship skill contains abundant humanitarian spirit which includes:The voluntary of registration of apprentice, the clarity of learning objectives, the acitness of learning progress, cultural inheritance that meets the need of times, the combination of teaching and living, and stress of self-inno-vation and development. All the above mentioned aspects can be found in the western modern apprentice clear-ly. The key points that our modern apprentice embodies humanitarian spirit also contains strengthening the humanity care for “mentors”and enhancing guidance for students’ career planning and the enlightenment career culture.%教育人道主义精神强调珍视每个人的尊严、权利、自由和价值,把学生、教师当人看,教学为人存在,使人成为人。传统学徒制技艺传承过程蕴涵着丰富的人道主义精神包括:学徒入学的自愿性、学习目标明确性、学习过程的默会性、有合乎时代的文化传承、教学与生活合一、注重自主创新和发展。这些方面在西方现代学徒制中也有较为清晰的体现。我国现代学徒制教育体现人道精神的着力点还包括加强对“师傅”的人文关怀、加强对学生的职业生涯规划指导及职业文化熏陶。

  5. Effect of calcium ionophore on unfertilized oocytes after ICSI cycles

    OpenAIRE

    Maryam Eftekhar; Farnaz Mohammadian; Fariba Yousefnejad; Parisa Khani; Abbas Aflatoonian

    2012-01-01

    Background: Fertilization failure is one of the most problems in assisted reproduction technology (ART). Objective: The aim of this study was the evaluation of oocytes activation by addition of calcium ionophore in unfertilized oocytes in ICSI cycles. Materials and Methods: This study was done on 15 ICSI cycles (stimulated with standard long protocol). Mature retrieved oocytes with normal morphology that had no evidence of fertilization 24 hours after ICSI were included in the study. The oocy...

  6. Hormônio anti-Mülleriano sérico para predição da resposta ovariana em ciclos de reprodução assistida Serum anti-Müllerian hormone to predict ovarian response in assisted reproduction cycles

    Directory of Open Access Journals (Sweden)

    Gustavo Salata Romão

    2012-12-01

    responders. METHODS: Nineteen women aged ≥35, presenting with regular menses, submitted to ovarian stimulation for assisted reproduction were included. Women with endometriosis, polycystic ovarian syndrome or those who were previously submitted to ovarian surgery were excluded. On the basal and seventh day of ovarian stimulation, a peripheral blood sample was drawn for the determination of AMH, FSH and estradiol levels. AMH levels were assessed by ELISA and FSH, and estradiol by immunochemiluminescence. At the end of the stimulation cycle patients were classified as normal responders (if four or more oocytes were obtained during oocyte retrieval or poor responders (if less than four oocytes were obtained during oocyte retrieval or if the cycle was cancelled due to failure of ovulation induction and comparatively analyzed by the t-test for hormonal levels, length of ovarian stimulation, number of follicles retrieved, and number of produced and transferred embryos. The association between AMH and these parameters was also analyzed by the Spearman correlation test. RESULTS: There was no significant difference between groups for basal or the seventh day as to AMH, FSH and estradiol levels. There was a significant correlation between seventh day AMH levels and the total amount of exogenous FSH used (p=0.02. CONCLUSIONS: AMH levels on the seventh day of the ovarian stimulation cycle do not seem to predict the pattern of ovarian response and their determination is not recommended for this purpose.

  7. [Cycling in Zagreb].

    Science.gov (United States)

    Matos, Stipan; Krapac, Ladislav; Krapac, Josip

    2007-01-01

    Cycling in Zagreb, as means of urban transport inside and outside the city, has a bright past, hazy presence but a promising future. Every day, aggressive citizens who lack urban traffic culture mistreat many cyclists but also many pedestrians. Sedentary way of living, unhealthy eating habits and inadequate recreation would surely be reduced if Zagreb had a network of cycling tracks (190 cm) or lanes (80 cm). Main city roads were constructed at the beginning of the 20th century. Today, the lack of cycling tracks is particularly evident in terms of missing connections between northern and southern parts of the city. Transportation of bikes in public vehicles, parking of bikes as well as cycling along the foot of the mountains Medvednica and Zumberacko gorje is not adequately organized. Better organization is necessary not only because of the present young generation but also because of the young who will shortly become citizens of the EU, where cycling is enormously popular. Cycling tourism is not known in Zagreb, partly due to inadequate roads. The surroundings of Zagreb are more suitable for cycling tourism and attractive brochures and tourist guides offer information to tourists on bikes. Professional, acrobatic and sports cycling do not have a tradition in Zagreb and in Croatia. The same holds true for recreational cycling and indoor exercise cycling. The authors discuss the impact of popularization of cycling using print and electronic media. The role of district and local self-government in the construction and improvement of traffic roads in Zagreb is very important. It is also significant for the implementation of legal regulations that must be obeyed by all traffic participants in order to protect cyclists, the most vulnerable group of traffic participants besides passengers. Multidisciplinary action of all benevolent experts would surely increase safety and pleasure of cycling in the city and its surroundings. This would also help reduce daily stress and

  8. Real business cycle realizations

    OpenAIRE

    Smith, Gregor W.; Stanley E. Zin

    1997-01-01

    Much recent business cycle research focuses on moments of macroeconomic aggregates. We construct examples of real business cycle sample paths for output, consumption, and employment for the U.S. economy. Annual sample paths are generated from an initial condition in 1925, measured technology and government spending shocks since then, and a standard, calibrated, one-sector model of the business cycle. Quarterly sample paths are generated similarly, from an initial condition in 1955. The law of...

  9. Fictitious Supercontinent Cycles

    CERN Document Server

    Herndon, J Marvin

    2013-01-01

    Descriptions of phenomena, events, or processes made on the basis of problematic paradigms can be unreasonably complex (e.g. epicycles) or simply wrong (e.g. ultraviolet catastrophe). Supercontinent cycles, also called Wilson cycles, are, I submit, artificial constructs, like epicycles. Here I provide the basis for that assertion and describe published considerations from a fundamentally different, new, indivisible geoscience paradigm which obviate the necessity for assuming supercontinent cycles.

  10. Alternative fuel cycles

    International Nuclear Information System (INIS)

    Uranium resource utilization and economic considerations provide incentives to study alternative fuel cycles as future options to the PHWR natural uranium cycle. Preliminary studies to define the most favourable alternatives and their possible introduction dates are discussed. The important and uncertain components which influence option selection are reviewed, including nuclear capacity growth, uranium availability and demand, economic potential, and required technological developments. Finally, a summary of Ontario Hydro's program to further assess cycle selection and define development needs is given. (auth)

  11. Fast breeder fuel cycle

    International Nuclear Information System (INIS)

    Basic elements of the ex-reactor part of the fuel cycle (reprocessing, fabrication, waste handling and transportation) are described. Possible technical and proliferation measures are evaluated, including current methods of accountability, surveillance and protection. The reference oxide based cycle and advanced cycles based on carbide and metallic fuels are considered utilizing conventional processes; advanced nonaqueous reprocessing is also considered. This contribution provides a comprehensive data base for evaluation of proliferation risks

  12. Friction Generated Limit Cycles

    OpenAIRE

    Ohlsson, Henrik; Åström, Karl Johan

    2001-01-01

    This paper treats limit cycles caused by friction. The goal has been to explain phenomena that have been observed experimentally in mechatronic systems. Experiments have shown that oscillations of qualitatively different types can be obtained simply by changing controller specifications. Stiction is important in some cases but not in others. Necessary conditions for limit cycle are given for the case where stiction is important. Conditions for local stability of the limit cycles are also pres...

  13. Historicising the Hydrosocial Cycle

    OpenAIRE

    Jeremy J. Schmidt

    2014-01-01

    This paper examines the historical claims made in support of the hydrosocial cycle. In particular, it considers how arguments advancing the hydrosocial cycle make historical claims regarding modernist conceptions of what water is (i.e. H2O) and its fit with society. The paper gives special emphasis to the society/nature dualism and to the notion of agency as key sites of contest in arguments regarding the hydrosocial cycle. It finds that, while several versions of the hydrosocial cycle seek t...

  14. Edgeworth cycles revisited

    Energy Technology Data Exchange (ETDEWEB)

    Doyle, Joseph [MIT Sloan School of Management, 50 Memorial Drive, E52-447, Cambridge MA 02142 (United States); Muehlegger, Erich [John F. Kennedy School of Government, Harvard University, Mailbox 25, 79 JFK Street, Cambridge, MA 02138 (United States); Samphantharak, Krislert [Graduate School of International Relations and Pacific Studies, University of California at San Diego, 9500 Gilman Drive 1519, La Jolla, CA 92093 (United States)

    2010-05-15

    Some gasoline markets exhibit remarkable price cycles, where price spikes are followed by a series of small price declines: a pattern consistent with a model of Edgeworth cycles described by Maskin and Tirole. We extend the model and empirically test its predictions with a new dataset of daily station-level prices in 115 US cities. Consistent with the theory, and often in contrast with previous empirical work, we find the least and most concentrated markets are much less likely to exhibit cycling behavior both within and across cities; areas with more independent convenience-store gas stations are also more likely to cycle. (author)

  15. Computer Assisted Surgery

    Science.gov (United States)

    Arámbula Cosío, F.; Padilla Castañeda, M. A.

    2003-09-01

    Computer assisted surgery (CAS) systems can provide different levels of assistance to a surgeon during training and execution of a surgical procedure. This is done through the integration of : measurements taken on medical images; computer graphics techniques; and positioning or tracking mechanisms which accurately locate the surgical instruments inside the operating site. According to the type of assistance that is provided to the surgeon, CAS systems can be classified as: Image guided surgery systems; Assistant robots for surgery; and Training simulators for surgery. In this work are presented the main characteristics of CAS systems. It is also described the development of a computer simulator for training on Transurethral Resection of the Prostate (TURP) based on a computer model of the prostate gland which is able to simulate, in real time, deformations and resections of tissue. The model is constructed as a 3D mesh with physical properties such as elasticity. We describe the main characteristics of the prostate model and its performance. The prostate model will also be used in the development of a CAS system designed to assist the surgeon during a real TURP procedure. The system will provide 3D views of the shape of the prostate of the patient, and the position of the surgical instrument during the operation. The development of new computer graphics models which are able to simulate, in real time, the mechanical behavior of an organ during a surgical procedure, can improve significantly the training and execution of other minimally invasive surgical procedures such as laparoscopic gall bladder surgery.

  16. The endometrium in assisted reproductive technology: How thin is thin?

    OpenAIRE

    Nalini Mahajan; Sharma, S.

    2016-01-01

    A thin endometrium is encountered infrequently (2.4%) in assisted reproductive technology cycles. When it does occur it is a cause of concern as it is associated with lower implantation rate and pregnancy rate. Though pregnancies have been reported at 4 and 5 mm it is apparent that an endometrial thickness

  17. Mobile Autonomous Humanoid Assistant

    Science.gov (United States)

    Diftler, M. A.; Ambrose, R. O.; Tyree, K. S.; Goza, S. M.; Huber, E. L.

    2004-01-01

    A mobile autonomous humanoid robot is assisting human co-workers at the Johnson Space Center with tool handling tasks. This robot combines the upper body of the National Aeronautics and Space Administration (NASA)/Defense Advanced Research Projects Agency (DARPA) Robonaut system with a Segway(TradeMark) Robotic Mobility Platform yielding a dexterous, maneuverable humanoid perfect for aiding human co-workers in a range of environments. This system uses stereo vision to locate human team mates and tools and a navigation system that uses laser range and vision data to follow humans while avoiding obstacles. Tactile sensors provide information to grasping algorithms for efficient tool exchanges. The autonomous architecture utilizes these pre-programmed skills to form human assistant behaviors. The initial behavior demonstrates a robust capability to assist a human by acquiring a tool from a remotely located individual and then following the human in a cluttered environment with the tool for future use.

  18. A cycle timer for testing electric vehicles

    Science.gov (United States)

    Soltis, R. F.

    1978-01-01

    A cycle timer was developed to assist the driver of an electric vehicle in more accurately following and repeating SAE driving schedules. These schedules require operating an electric vehicle in a selected stop-and-go driving cycle and repeating this cycle pattern until the vehicle ceases to meet the requirements of the cycle. The heart of the system is a programmable read-only memory (PROM) that has the required test profiles permanently recorded on plug-in cards, one card for each different driving schedule. The PROM generates a direct current analog signal that drives a speedometer displayed on one scale of a dual movement meter. The second scale of the dual movement meter displays the actual speed of the vehicle as recorded by the fifth wheel. The vehicle operator controls vehicle speed to match the desired profile speed. The PROM controls the recycle start time as well as the buzzer activation. The cycle programmer is powered by the test vehicle's 12-volt accessory battery, through a 5-volt regulator and a 12-volt dc-to-dc converter.

  19. Teaching the Krebs Cycle.

    Science.gov (United States)

    Akeroyd, F. Michael

    1983-01-01

    Outlines a simple but rigorous treatment of the Krebs Cycle suitable for A-level Biology students. The importance of the addition of water molecules in various stages of the cycle is stressed as well as the removal of hydrogen atoms by the oxidizing enzymes. (JN)

  20. Life Cycle Environmental Management

    DEFF Research Database (Denmark)

    Pedersen, Claus Stig; Jørgensen, Jørgen; Pedersen, Morten Als

    1996-01-01

    processes. The discipline of life cycle environmental management (LCEM) focuses on the incorporation of environmental criteria from the life cycles of products and other company activities into the company management processes. This paper introduces the concept of LCEM as an important element...

  1. Life cycle management (LCM)

    DEFF Research Database (Denmark)

    Remmen, Arne; Thrane, Mikkel

    2004-01-01

    The chapter gives an introduction to Life Cycle Management (LCM) and shows how LCM can be practiced in different contexts and at different ambition levels.......The chapter gives an introduction to Life Cycle Management (LCM) and shows how LCM can be practiced in different contexts and at different ambition levels....

  2. Power Plant Cycling Costs

    Energy Technology Data Exchange (ETDEWEB)

    Kumar, N.; Besuner, P.; Lefton, S.; Agan, D.; Hilleman, D.

    2012-07-01

    This report provides a detailed review of the most up to date data available on power plant cycling costs. The primary objective of this report is to increase awareness of power plant cycling cost, the use of these costs in renewable integration studies and to stimulate debate between policymakers, system dispatchers, plant personnel and power utilities.

  3. Ethics and assisted reproduction.

    Science.gov (United States)

    Fasouliotis, S J; Schenker, J G

    2000-06-01

    In vitro fertilization and assisted reproductive technology have made great progress during the last 20 years. Genetic material donation, human embryo cryopreservation, selective embryo reduction, preimplantation genetic diagnosis and surrogacy are currently practiced in many countries. On the other hand, embryo research is practiced only in a small number of nations, whereas human cloning has thus far been universally condemned. The rapid evolution and progress of all these techniques of assisted reproduction has revealed certain ethical issues that have to be addressed. PMID:10825637

  4. Predicting the Sunspot Cycle

    Science.gov (United States)

    Hathaway, David H.

    2009-01-01

    The 11-year sunspot cycle was discovered by an amateur astronomer in 1844. Visual and photographic observations of sunspots have been made by both amateurs and professionals over the last 400 years. These observations provide key statistical information about the sunspot cycle that do allow for predictions of future activity. However, sunspots and the sunspot cycle are magnetic in nature. For the last 100 years these magnetic measurements have been acquired and used exclusively by professional astronomers to gain new information about the nature of the solar activity cycle. Recently, magnetic dynamo models have evolved to the stage where they can assimilate past data and provide predictions. With the advent of the Internet and open data policies, amateurs now have equal access to the same data used by professionals and equal opportunities to contribute (but, alas, without pay). This talk will describe some of the more useful prediction techniques and reveal what they say about the intensity of the upcoming sunspot cycle.

  5. Nuclear reactor closed Brayton cycle space power conversion systems

    International Nuclear Information System (INIS)

    This paper presents the past history, present status and future prospects for closed Brayton cycle power conversion systems to be used in space when requirements have been established. Since there is a classic lack of coordination between advanced technology and its perceived need that can be strongly affected by associated factors, recommendations will be made to assist in the current situation. 4 refs

  6. Exploration and Practice of the Modern Apprenticeship System in the Teaching of Graphics and Images%现代学徒制在图形图像制作专业教学中的探索与实践

    Institute of Scientific and Technical Information of China (English)

    李和香

    2015-01-01

    随着计算机技术的迅速发展和普及,对于图形图像制作专业来说如何抓好专业课程的教学改革,培养符合社会发展需求的高技能人才成为我们关注的问题.作为一种人才培养模式的现代学徒制在图形图像制作专业的专业课程教学中具有独特优势,对于我们解决现阶段高职教育中的诸多问题具有一定的针对性.本文在现代学徒制培养模式的基础上提出了图形图像制作专业的专业课程教学改革的探讨,讨论如何在课程教学实践中做好课程重建等方面的具体工作,使传统的教学模式有所创新.%With the rapid development and popularization of computer technology, it is a problem for us to pay special attention to the teaching reform of the professional course in the production of graphic images. As a kind of talent training mode of the modern apprenticeship in the graphics and image production professional course teaching has unique advantages, for us to solve many problems in Higher Vocational education. Based on the modern apprenticeship system, this paper puts forward a discus-sion on the reform of professional course teaching in the production of graphic images, and discusses how to do the work of cur-riculum reconstruction in the curriculum teaching practice.

  7. 现代学徒制培养方式在工程造价专业中的应用研究%Research on Application of Training Method of Modern Apprenticeship in the Engineering Cost Specialty

    Institute of Scientific and Technical Information of China (English)

    李斌

    2016-01-01

    文本基于工程造价专业内实施现代学徒制的育人模式,探索符合专业发展与企业需求相结合的校企联合培养之路。分析工程造价专业现状,开展从校企双方负责的工作内容、共同培养方式、综合素质教育、实施定岗培养和轮岗制度等多方面进行学徒制培养方式的探索,为工程造价专业提供一种新的人才培养模式,为现代学徒制在其他专业的实施提供可移植性和推广性的经验。%Based on modern apprenticeship education model implemented by engineering cost spe‐cialty ,this paper explores a talent cultivating way combining professional development and demands of the enterprise .It explores the apprenticeship talent cultivating method from various aspects ,such as an‐alyzing the current state of the construction cost specialty ,carrying out the work content that are in charge of both college and enterprise ,co cultivating method ,comprehensive quality -oriented educa‐tion ,implementing post targeted cultivation and job rotation system ,which provide a new talent cultiva‐ting model for engineering cost specialty and experience of portability and the promotion of modern ap‐prenticeship to other specialties .

  8. A team approach to assisted conception treatment.

    Science.gov (United States)

    Muirhead, Margaret; Lawton, Janet

    1998-01-01

    A programme to improve 'continuity of care' was initiated at Bourn Hall Clinic in direct response to patient demand to see the same doctors and nurses throughout assisted conception treatment cycles. A working party comprising individuals from all disciplines involved in assisted conception care was set up to review practices and aims and to establish an action plan. As a result, in 1996, a team approach to in vitro fertilization (IVF) and frozen embryo transfer (FET) treatment cycles was introduced at the clinic. The nursing staff were divided into two teams, each with a leader, an appropriate skill mix of full- and part-time nurses, and one full-time and one relief doctor. Treatment cycles were scheduled using pituitary downregulation with gonadotrophin-releasing hormone (GnRH) agonist when appropriate, and a programme was devised in which groups of 40--45 couples started treatment during the same 5 day period. Each couple was assigned to one of the teams and starting dates for each group were separated by 2 week intervals. The objectives of the working party were successfully achieved. The team approach to treating a finite number of couples provides a better opportunity for individualized care. Couples appreciate the advantages of continuity of care and the improved rapport with team staff. Forward planning of treatment cycles provides greater flexibility for incorporating clinic visits into patients' normal routines. Staff have benefited from increased job satisfaction due to greater involvement with couples from initial contact to the completion of treatment. The new working practice provides opportunities for training and research. Staff costs have been rationalized with benefits both to couples and to the business unit.

  9. Parent-Assisted Learning.

    Science.gov (United States)

    Niedermeyer, Fred C.

    The effects of parent-monitored practice at home on pupil performance in reading were investigated. The study used as instructional vehicles the Parent-Assisted Learning Program (PAL) and the Southwest Regional Laboratory's (SWRL) First-Year Communication Skills Program. PAL was designed to enable school personnel to establish a system whereby…

  10. Computer-assisted instruction

    NARCIS (Netherlands)

    J. Voogt; P. Fisser

    2015-01-01

    Since the early days of computer technology in education in the 1960s, it was claimed that computers can assist instructional practice and hence improve student learning. Since then computer technology has developed, and its potential for education has increased. In this article, we first discuss th

  11. Robot-Assisted Prostatectomy

    Medline Plus

    Full Text Available ... actually mimicking -- these mimicking the movement of the human hand and the human wrist. Clips, please. So what Dr. Pinon has ... for robots to operate without the assistance of humans? Not yet. We are not quite there. The ...

  12. Physician-Assisted Suicide

    Science.gov (United States)

    Module fourteen of the EPEC-O Self-Study Original Version focuses on the skills that the physician can use to respond both compassionately and confidently to a request, not on the merits of arguments for or against legalizing physician-assisted suicide (PAS) or euthanasia.

  13. Robotic assisted andrological surgery

    Institute of Scientific and Technical Information of China (English)

    Sijo J Parekattil; Ahmet Gudeloglu

    2013-01-01

    The introduction of the operative microscope for andrological surgery in the 1970s provided enhanced magnification and accuracy,unparalleled to any previous visual loop or magnification techniques.This technology revolutionized techniques for microsurgery in andrology.Today,we may be on the verge of a second such revolution by the incorporation of robotic assisted platforms for microsurgery in andrology.Robotic assisted microsurgery is being utilized to a greater degree in andrology and a number of other microsurgical fields,such as ophthalmology,hand surgery,plastics and reconstructive surgery.The potential advantages of robotic assisted platforms include elimination of tremor,improved stability,surgeon ergonomics,scalability of motion,multi-input visual interphases with up to three simultaneous visual views,enhanced magnification,and the ability to manipulate three surgical instruments and cameras simultaneously.This review paper begins with the historical development of robotic microsurgery.It then provides an in-depth presentation of the technique and outcomes of common robotic microsurgical andrological procedures,such as vasectomy reversal,subinguinal varicocelectomy,targeted spermatic cord denervation (for chronic orchialgia) and robotic assisted microsurgical testicular sperm extraction (microTESE).

  14. Assessing Cycling Participation in Australia

    OpenAIRE

    Chris Rissel; Cameron Munro; Adrian Bauman

    2013-01-01

    Planning and evaluating cycling programs at a national or state level requires accurate measures of cycling participation. However, recent reports of cycling participation have produced very different estimates. This paper examines the reported rates of cycling in five recent population surveys of cycling. Three surveys (one national and two from Sydney) asking respondents when they last rode a bicycle generated cycling participation (cycled in the past year) estimates of 29.7%, 34.1% and 28....

  15. Bimodality and the Hale cycle

    Science.gov (United States)

    Wilson, Robert M.

    1988-01-01

    Evidence is provided of a modulation of between 20 and 24 yr for the Hale cycle, and comparison of consecutive pairs of cycles strongly suggests that even-numbered cycles are preferentially paired with odd-numbered following cycles. The results indicate that cycles 22 and 23 form a new cyle pair. The sum of monthly mean sunspot numbers over consecutively paired sunspot cycles for Hale cycle 12 is found to be about 19,100 + or - 3000.

  16. Ductile mode electrochemical oxidation assisted micromachining for glassy carbon

    International Nuclear Information System (INIS)

    Recently, a new mechanical machining process using electrochemical oxidation was reported. Electrochemical oxidation assisted micromachining was applied to the machining of glassy carbon. The material removal process of the electrochemical oxidation assisted micromachining consists of repeated cycles of oxidation followed by removal of the oxide layer. In this paper, we experimentally investigate and compare the critical chip thickness for ductile mode cutting in mechanical machining and electrochemical oxidation assisted micromachining of glassy carbon. The theoretical critical chip thickness is calculated for mechanical machining of glassy carbon and experimentally verified. The effect of electrochemical oxidation on the critical chip thickness for ductile mode micromachining is also studied for glassy carbon. It is found that the critical chip thickness is increased for the electrochemical oxidation assisted micromachining. (paper)

  17. The Anderson Quin Cycle

    Energy Technology Data Exchange (ETDEWEB)

    Anderson, J.H.; Bilbow, W.M.

    1993-03-18

    The objective of this study was to make a more refined evaluation of the Anderson Quin Cycle based on most recent information on the performance of various elements that will be used in the Anderson Quin Cycle. My original estimate of the work plan for evaluating and optimizing the Anderson Quin Cycle called for 7000 man hours of work. Since this grant was limited to 2150 man hours, we could not expect to achieve all the objectives within the allotted period of work. However, the most relevant program objectives have been completed as reported here. The analysis generally confirms the results originally estimated in my paper on the subject. (Ref. 2) Further optimizations should show even higher efficiencies. The Anderson Quin Cycle (US Patent applied for) basically consists of 5 elements in the power cycle: A refrigeration system to cool and clean the inlet air before it enters the compressor that supplies air for the gas turbine; a gas turbine consisting of a compressor, combustor, and turbine; a steam boiler and steam turbine system using the heat from the exhaust gas out of the gas turbine; a vapor turbine cycle, which utilizes the condensed heat from the exhaust of the steam turbine and the exhaust gas heat leaving the steam boiler to operate a vapor turbine cycle which utilizes another fluid than water, in this case isobutane; and the fifth element consists of a gas cooler and heat pump system, which removes the heat from the exhaust gas to lower its temperature essentially to atmospheric temperature, and at the same time permits treatment of the exhaust gas to remove acid components such as sulfur dioxide and nitrogen oxides. Current industry accepted component characteristics were incorporated in the performance analysis of the overall cycle, ensuring accurate and meaningful operating predictions. The characteristics and performance of each of the elements are described. The thermal efficiency of the optimized calculated Anderson Quin Cycle is 62 percent.

  18. Future fuel cycles

    International Nuclear Information System (INIS)

    A fuel cycle must offer both financial and resource savings if it is to be considered for introduction into Ontario's nuclear system. The most promising alternative CANDU fuel cycles are examined in the context of both of these factors over a wide range of installed capacity growth rates and economic assumptions, in order to determine which fuel cycle, or cycles, should be introduced, and when. It is concluded that the optimum path for the long term begins with the prompt introduction of the low-enriched-uranium fuel cycle. For a wide range of conditions, this cycle remains the optimum throughout the very long term. Conditions of rapid nuclear growth and very high uranium price escalation rates warrant the supersedure of the low-enriched-uranium cycle by either a plutonium-topped thorium cycle or plutonium recycle, beginning between 2010 and 2025. It is also found that the uranium resource position is sound in terms of both known resources and production capability. Moreover, introduction of the low-enriched-uranium fuel cycle and 1250 MWe reactor units will assure the economic viability of nuclear power until at least 2020, even if uranium prices increase at a rate of 3.5% above inflation. The interrelationship between these two conclusions lies in the tremendous incentive for exploration which will occur if the real uranium price escalation rate is high. From a competitive viewpoint, nuclear power can withstand increases in the price of uranium. However, such increases will likely further expand the resource base, making nuclear an even more reliable energy source. (auth)

  19. Navigating "Assisted Dying".

    Science.gov (United States)

    Schipper, Harvey

    2016-02-01

    Carter is a bellwether decision, an adjudication on a narrow point of law whose implications are vast across society, and whose impact may not be realized for years. Coupled with Quebec's Act Respecting End-of-life Care it has sharply changed the legal landscape with respect to actively ending a person's life. "Medically assisted dying" will be permitted under circumstances, and through processes, which have yet to be operationally defined. This decision carries with it moral assumptions, which mean that it will be difficult to reach a unifying consensus. For some, the decision and Act reflect a modern acknowledgement of individual autonomy. For others, allowing such acts is morally unspeakable. Having opened the Pandora's Box, the question becomes one of navigating a tolerable societal path. I believe it is possible to achieve a workable solution based on the core principle that "medically assisted dying" should be a very rarely employed last option, subject to transparent ongoing review, specifically as to why it was deemed necessary. My analysis is based on 1. The societal conditions in which have fostered demand for "assisted dying", 2. Actions in other jurisdictions, 3. Carter and Quebec Bill 52, 4. Political considerations, 5. Current medical practice. Leading to a series of recommendations regarding. 1. Legislation and regulation, 2. The role of professional regulatory agencies, 3. Medical professions education and practice, 4. Public education, 5. Health care delivery and palliative care. Given the burden of public opinion, and the legal steps already taken, a process for assisted-dying is required. However, those legal and regulatory steps should only be considered a necessary and defensive first step in a two stage process. The larger goal, the second step, is to drive the improvement of care, and thus minimize assisted-dying. PMID:27169205

  20. Cycling across borders

    Directory of Open Access Journals (Sweden)

    Jože Kos

    1999-01-01

    Full Text Available The article describes the intent and content of the international Velo-City conference 1999, Maribor–Graz and the organisation of this cycling development planning meeting. It focuses on the resolution of the conference concerning cycling traffic policies, the emerging network of European cycling connections and the traffic planning workshop about a difficult square in Maribor. The content framework of particular papers is shown, as well as other post-conference events. In the conclusion certain useful addresses for obtaining added data on sustainable traffic planning are given.

  1. Life Cycle Sustainability Dashboard

    DEFF Research Database (Denmark)

    Traverso, Marzia; Finkbeiner, Matthias; Jørgensen, Andreas;

    2012-01-01

    One method to assess the sustainability performance of products is life cycle sustainability assessment (LCSA), which assesses product performance considering the environmental,economic, and social dimensions of the life cycle. The results of LCSA can be used to compare different products...... of sustainability is the communicability of the results by means of a graphical representation (a cartogram), characterized by a suitable chromatic scale and ranking score. The integration of LCSA and the dashboard of sustainability into a so-called Life Cycle Sustainability Dashboard (LCSD) is described here...

  2. Experiment research on grain drying process in the heat pump assisted fluidized beds

    Institute of Scientific and Technical Information of China (English)

    Jing Yang; Li Wang; Fi Xiang; Lige Tong; Hua Su

    2004-01-01

    A heat pump assisted fluidized bed grain drying experimental system was developed. Based on this system, a serial of experiments was performed under four kinds of air cycle conditions. According to the experimental analysis, an appropriate drying medium-air cycle for the heat pump assisted fluidized bed drying equipment was decided, which is different from the commonly used heat pump assisted drying system. The experimental results concerning the drying operation performance of the new system show that the averaged coefficient of performance (COP) can reach more than 2.5. The economical evaluation was performed and the powefficiency and great application potentiality in future market.

  3. SuperAssist: Personal assistants for cooperative healthcare treatment

    NARCIS (Netherlands)

    Haan, G. de; Mast, C.A.P.G. van der; Blanson Henkemans, O.; Neerincx, M.A.

    2005-01-01

    Human-computer interaction, tele-medicine, supervision, personalization, ambient intelligence, health care, personal assistants, cooperative problem-solving. ABSTRACT This paper describes the research plans in the SuperAssist project, introducing personal assistants in the care of diabetes patients,

  4. Fuel cycle data survey

    International Nuclear Information System (INIS)

    A survey of the fuel cycle cost data published during 1977 and 1978 is presented in tabular and graphical form. Cost trends for the period 1965 onwards are presented for yellow cake, conversion, uranium enrichment, fuel fabrication and reprocessing

  5. Cycles in graphs

    CERN Document Server

    Alspach, BR

    1985-01-01

    This volume deals with a variety of problems involving cycles in graphs and circuits in digraphs. Leading researchers in this area present here 3 survey papers and 42 papers containing new results. There is also a collection of unsolved problems.

  6. Fuel cycle studies

    International Nuclear Information System (INIS)

    Programs are being conducted in the following areas: advanced solvent extraction techniques, accident consequences, fuel cycles for nonproliferation, pyrochemical and dry processes, waste encapsulation, radionuclide transport in geologic media, hull treatment, and analytical support for LWBR

  7. Resuscitating Real Business Cycles

    OpenAIRE

    Robert G. King; Sergio T. Rebelo

    2000-01-01

    The Real Business Cycle (RBC) research program has grown spectacularly over the last decade, as its concepts and methods have diffused into mainstream macroeconomics. Yet, there is increasing skepticism that technology shocks are a major source of business fluctuations. This chapter exposits the basic RBC model and shows that it requires large technology shocks to produce realistic business cycles. While Solow residuals are sufficiently volatile, these imply frequent technological regress. Pr...

  8. Preparing for Assisted Reproductive Technology

    Science.gov (United States)

    ... CDC Cancel Submit Search The CDC Assisted Reproductive Technology (ART) Note: Javascript is disabled or is not ... visit this page: About CDC.gov . Assisted Reproductive Technology (ART) What Is ART Patient Resources Preparing for ...

  9. Rehabilitative and Assistive Technology: Overview

    Science.gov (United States)

    ... Clinical Trials Resources and Publications Rehabilitative and Assistive Technology: Overview Skip sharing on social media links Share this: Page Content Rehabilitative and assistive technology refers to tools, equipment, or products that can ...

  10. Quantifying the adaptive cycle

    Science.gov (United States)

    Angeler, David G.; Allen, Craig R.; Garmestani, Ahjond S.; Gunderson, Lance H.; Hjerne, Olle; Winder, Monika

    2015-01-01

    The adaptive cycle was proposed as a conceptual model to portray patterns of change in complex systems. Despite the model having potential for elucidating change across systems, it has been used mainly as a metaphor, describing system dynamics qualitatively. We use a quantitative approach for testing premises (reorganisation, conservatism, adaptation) in the adaptive cycle, using Baltic Sea phytoplankton communities as an example of such complex system dynamics. Phytoplankton organizes in recurring spring and summer blooms, a well-established paradigm in planktology and succession theory, with characteristic temporal trajectories during blooms that may be consistent with adaptive cycle phases. We used long-term (1994–2011) data and multivariate analysis of community structure to assess key components of the adaptive cycle. Specifically, we tested predictions about: reorganisation: spring and summer blooms comprise distinct community states; conservatism: community trajectories during individual adaptive cycles are conservative; and adaptation: phytoplankton species during blooms change in the long term. All predictions were supported by our analyses. Results suggest that traditional ecological paradigms such as phytoplankton successional models have potential for moving the adaptive cycle from a metaphor to a framework that can improve our understanding how complex systems organize and reorganize following collapse. Quantifying reorganization, conservatism and adaptation provides opportunities to cope with the intricacies and uncertainties associated with fast ecological change, driven by shifting system controls. Ultimately, combining traditional ecological paradigms with heuristics of complex system dynamics using quantitative approaches may help refine ecological theory and improve our understanding of the resilience of ecosystems.

  11. Solar Cycle Prediction

    CERN Document Server

    Petrovay, K

    2010-01-01

    A review of solar cycle prediction methods and their performance is given, including forecasts for cycle 24 and focusing on aspects of the solar cycle prediction problem that have a bearing on dynamo theory. The scope of the review is further restricted to the issue of predicting the amplitude (and optionally the epoch) of an upcoming solar maximum no later than right after the start of the given cycle. Prediction methods form three main groups. Precursor methods rely on the value of some measure of solar activity or magnetism at a specified time to predict the amplitude of the following solar maximum. Their implicit assumption is that each numbered solar cycle is a consistent unit in itself, while solar activity seems to consist of a series of much less tightly intercorrelated individual cycles. Extrapolation methods, in contrast, are based on the premise that the physical process giving rise to the sunspot number record is statistically homogeneous, i.e., the mathematical regularities underlying its variati...

  12. Preparing for Success through Apprenticeship

    Science.gov (United States)

    Christman, Scott

    2012-01-01

    The fact that many companies outsource jobs and contracts for manufactured products can be attributed to the shortage of technically trained and skilled workers in America's workforce. Today, business and industry, educators, parents, and students are significantly interested in STEM education and technological literacy. With the majority of…

  13. Laser assisted electron dynamics

    CERN Document Server

    Bray, Alexander William

    2016-01-01

    We apply the convergent close-coupling (CCC) formalism to analyse the processes of laser assisted electron impact ionisation of He, and the attosecond time delay in the photodetachment of the H^{-} ion and the photoionisation of He. Such time dependent atomic collision processes are of considerable interest as experimental measurements on the relevant timescale (attoseconds 10^{-18} s) are now possible utilising ultrafast and intense laser pulses. These processes in particular are furthermore of interest as they are strongly influenced by many-electron correlations. In such cases their theoretical description requires a more comprehensive treatment than that offered by first order perturbation theory. We apply such a treatment through the use of the CCC formalism which involves the complete numeric solution of the integral Lippmann-Schwinger equations pertaining to a particular scattering event. For laser assisted electron impact ionisation of He such a treatment is of a considerably greater accuracy than the...

  14. Physician Assistant Genomic Competencies.

    Science.gov (United States)

    Goldgar, Constance; Michaud, Ed; Park, Nguyen; Jenkins, Jean

    2016-09-01

    Genomic discoveries are increasingly being applied to the clinical care of patients. All physician assistants (PAs) need to acquire competency in genomics to provide the best possible care for patients within the scope of their practice. In this article, we present an updated version of PA genomic competencies and learning outcomes in a framework that is consistent with the current medical education guidelines and the collaborative nature of PAs in interprofessional health care teams. PMID:27490287

  15. Improving assisted living care.

    Science.gov (United States)

    Gregory, Nancy; Gesell, Sabina B; Widmer, Tom

    2007-01-01

    In the absence of a national measurement system, private vendors of satisfaction measurement and improvement services have played a crucial role in the quality movement in the assisted living industry. Survey responses from 175 resident-family dyads at 20 facilities were analyzed to identify priorities for service improvement from the customers' perspective. They include improving care provided by aides and management, meal service, and activities. Practical solutions for addressing these issues are presented.

  16. Computer-assisted psychotherapy

    OpenAIRE

    Wright, Jesse H.; Wright, Andrew S.

    1997-01-01

    The rationale for using computers in psychotherapy includes the possibility that therapeutic software could improve the efficiency of treatment and provide access for greater numbers of patients. Computers have not been able to reliably duplicate the type of dialogue typically used in clinician-administered therapy. However, computers have significant strengths that can be used to advantage in designing treatment programs. Software developed for computer-assisted therapy gen...

  17. Computer assisted mathematical programming

    OpenAIRE

    Lucas, CA; Mitra, G

    1987-01-01

    A Computer Assisted Mathematical Programming (Modelling) System (CAMPS) is described in this paper. The system uses program generator techniques for model creation and contrasts with earlier approaches which use a special purpose language to construct models. Thus no programming skill is required to formulate a model. In designing the system we have first analysed the salient components of the mathematical programming activity. A mathematical programming model is usually constructed by progre...

  18. Assistance From A Distance

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    China joins international relief efforts in Haiti with a powerful sense of mission How long does it take to ready assistance and travel some 15,000 km around the globe to provide a helping hand amid one of the worst earth-quakes in modern history? The answer might surprise you. Less than 36 hours after seismic shocks leveled much of Haiti on January

  19. [EUTHANASIA AND ASSISTED SUICIDE].

    Science.gov (United States)

    Lantero, Caroline

    2015-07-01

    Euthanasia and assisted suicide are not part of French laws of bioethics and lack, for the time being, definition and normative framework other than their criminal prosecution. To transform them into a right, these concepts certainly call for an ethical and legal debate. This paper aims to question the ideas to be considered, the conceptual bases and normative tools that may be useful to the discussion.

  20. Laparoscopic assisted cholecystostomy.

    Science.gov (United States)

    Grecu, F

    1999-01-01

    Laparoscopic assisted cholecystostomy (LAC) is a safe method for external biliary drainage in jaundiced patients with distal common bile duct obstruction. It consists of the retrieval of the fundus of the gallbladder through the trocar, thus through abdominal wall followed by suture to the skin. This technique could be an option for surgeons who manage a patients with jaundice by distal common bile duct obstruction.

  1. [EUTHANASIA AND ASSISTED SUICIDE].

    Science.gov (United States)

    Lantero, Caroline

    2015-07-01

    Euthanasia and assisted suicide are not part of French laws of bioethics and lack, for the time being, definition and normative framework other than their criminal prosecution. To transform them into a right, these concepts certainly call for an ethical and legal debate. This paper aims to question the ideas to be considered, the conceptual bases and normative tools that may be useful to the discussion. PMID:27356358

  2. Fuel Cycle System Analysis Handbook

    Energy Technology Data Exchange (ETDEWEB)

    Steven J. Piet; Brent W. Dixon; Dirk Gombert; Edward A. Hoffman; Gretchen E. Matthern; Kent A. Williams

    2009-06-01

    This Handbook aims to improve understanding and communication regarding nuclear fuel cycle options. It is intended to assist DOE, Campaign Managers, and other presenters prepare presentations and reports. When looking for information, check here. The Handbook generally includes few details of how calculations were performed, which can be found by consulting references provided to the reader. The Handbook emphasizes results in the form of graphics and diagrams, with only enough text to explain the graphic, to ensure that the messages associated with the graphic is clear, and to explain key assumptions and methods that cause the graphed results. Some of the material is new and is not found in previous reports, for example: (1) Section 3 has system-level mass flow diagrams for 0-tier (once-through), 1-tier (UOX to CR=0.50 fast reactor), and 2-tier (UOX to MOX-Pu to CR=0.50 fast reactor) scenarios - at both static and dynamic equilibrium. (2) To help inform fast reactor transuranic (TRU) conversion ratio and uranium supply behavior, section 5 provides the sustainable fast reactor growth rate as a function of TRU conversion ratio. (3) To help clarify the difference in recycling Pu, NpPu, NpPuAm, and all-TRU, section 5 provides mass fraction, gamma, and neutron emission for those four cases for MOX, heterogeneous LWR IMF (assemblies mixing IMF and UOX pins), and a CR=0.50 fast reactor. There are data for the first 10 LWR recycle passes and equilibrium. (4) Section 6 provides information on the cycle length, planned and unplanned outages, and TRU enrichment as a function of fast reactor TRU conversion ratio, as well as the dilution of TRU feedstock by uranium in making fast reactor fuel. (The recovered uranium is considered to be more pure than recovered TRU.) The latter parameter impacts the required TRU impurity limits specified by the Fuels Campaign. (5) Section 7 provides flows for an 800-tonne UOX separation plant. (6) To complement 'tornado' economic

  3. MHD Integrated Topping Cycle Project

    Energy Technology Data Exchange (ETDEWEB)

    1992-02-01

    This fourteenth quarterly technical progress report of the MHD Integrated Topping Cycle Project presents the accomplishments during the period November 1, 1990 to January 31, 1991. Testing of the High Pressure Cooling Subsystem electrical isolator was completed. The PEEK material successfully passed the high temperature, high pressure duration tests (50 hours). The Combustion Subsystem drawings were CADAM released. The procurement process is in progress. An equipment specification and RFP were prepared for the new Low Pressure Cooling System (LPCS) and released for quotation. Work has been conducted on confirmation tests leading to final gas-side designs and studies to assist in channel fabrication.The final cathode gas-side design and the proposed gas-side designs of the anode and sidewall are presented. Anode confirmation tests and related analyses of anode wear mechanisms used in the selection of the proposed anode design are presented. Sidewall confirmation tests, which were used to select the proposed gas-side design, were conducted. The design for the full scale CDIF system was completed. A test program was initiated to investigate the practicality of using Avco current controls for current consolidation in the power takeoff (PTO) regions and to determine the cause of past current consolidation failures. Another important activity was the installation of 1A4-style coupons in the 1A1 channel. A description of the coupons and their location with 1A1 channel is presented herein.

  4. Steer assistance for teleoperation

    Science.gov (United States)

    Pape, Olivier; Houbloup, Philippe; Leveque, Stephane

    2005-05-01

    Giat Industries, expert in combat system, designs and integrates the technologies (electrical network, mechanical design, ergonomic and mobility command and control) for the French military and civil robotic. One of the main problems of current robotics is to treat the lack of operator's perception due to teleoperation. The article details the assistance for the steer control part of mobility command and control. The purpose of the assistance is to secure the vehicle, to insure the continuity of the command (in particular for tracked vehicle equipped of hydrostatic steering group), and to adapt the command (to use all the range of the command even at high speed and to adapt the speed to the desired curve). The advantage of the system presented in the article is to filter the order first and to transmit to the actuators only safe orders preserving the vehicle. This approach transforms the telepilot's order watching and correction problem, to a telepilot's order filtering problem. We pass here, from a logical "a posteriori" to a logical of "a priori" processing. The assistance includes: a model of the dynamic behavior of the vehicle and an open loop, some feed forward with appropriate filters and a closed loop. The article presents the result of the command studies from time simulation to "man on the loop" simulation. This system, at present time applied to the French Observation Robot demonstrator SYRANO (developped for the DGA-French Defence Procurement Agency), is the subject of a patent.

  5. Electric motor assisted bicycle as an aerobic exercise machine.

    Science.gov (United States)

    Nagata, T; Okada, S; Makikawa, M

    2012-01-01

    The goal of this study is to maintain a continuous level of exercise intensity around the aerobic threshold (AT) during riding on an electric motor assisted bicycle using a new control system of electrical motor assistance which uses the efficient pedaling rate of popular bicycles. Five male subjects participated in the experiment, and the oxygen uptake was measured during cycling exercise using this new pedaling rate control system of electrical motor assistance, which could maintain the pedaling rate within a specific range, similar to that in previous type of electrically assisted bicycles. Results showed that this new pedaling rate control system at 65 rpm ensured continuous aerobic exercise intensity around the AT in two subjects, and this intensity level was higher than that observed in previous type. However, certain subjects were unable to maintain the expected exercise intensity because of their particular cycling preferences such as the pedaling rate. It is necessary to adjust the specific pedaling rate range of the electrical motor assist control according to the preferred pedaling rate, so that this system becomes applicable to anyone who want continuous aerobic exercise.

  6. Electric motor assisted bicycle as an aerobic exercise machine.

    Science.gov (United States)

    Nagata, T; Okada, S; Makikawa, M

    2012-01-01

    The goal of this study is to maintain a continuous level of exercise intensity around the aerobic threshold (AT) during riding on an electric motor assisted bicycle using a new control system of electrical motor assistance which uses the efficient pedaling rate of popular bicycles. Five male subjects participated in the experiment, and the oxygen uptake was measured during cycling exercise using this new pedaling rate control system of electrical motor assistance, which could maintain the pedaling rate within a specific range, similar to that in previous type of electrically assisted bicycles. Results showed that this new pedaling rate control system at 65 rpm ensured continuous aerobic exercise intensity around the AT in two subjects, and this intensity level was higher than that observed in previous type. However, certain subjects were unable to maintain the expected exercise intensity because of their particular cycling preferences such as the pedaling rate. It is necessary to adjust the specific pedaling rate range of the electrical motor assist control according to the preferred pedaling rate, so that this system becomes applicable to anyone who want continuous aerobic exercise. PMID:23366293

  7. Physiological and cognitive responses when riding an electrically assisted bicycle versus a classical bicycle.

    Science.gov (United States)

    Theurel, J; Theurel, A; Lepers, R

    2012-01-01

    The present study compared the physiological responses and the subsequent cognitive performance when riding an electrically assisted (EB) versus a classical (CB) bicycle. Oxygen uptake, heart rate and leg extensor muscles electromyographic (EMG) activity were recorded in 10 subjects during a 30-min intermittent cycling exercise performed with EB versus CB. Cognitive performance was evaluated by a mail sorting test, performed at rest and after each cycling session. Averaged oxygen uptake and heat rate were significantly (P cycling than during CB cycling. The EMG activities of the vastus lateralis, rectus femoris and gastrocnemius medialis muscles were significantly (P cycling than during EB cycling. The time to complete the mail sorting test was significantly (P cycling than after CB cycling. Because EB cycling reduced muscle strains and physiological stress, it might offer benefits for those using bicycles in their work, such as postal workers and police officers. STATEMENT OF RELEVANCE: This study compared physiological and cognitive responses when riding an electrically assisted versus a classical bicycle. The results showed that the electrically assisted bicycle led to reduced muscle strains and physiological stress and, therefore, might offer benefits for those using bicycles in their work, such as postal workers and police officers. PMID:22506555

  8. Helium process cycle

    Science.gov (United States)

    Ganni, Venkatarao

    2007-10-09

    A unique process cycle and apparatus design separates the consumer (cryogenic) load return flow from most of the recycle return flow of a refrigerator and/or liquefier process cycle. The refrigerator and/or liquefier process recycle return flow is recompressed by a multi-stage compressor set and the consumer load return flow is recompressed by an independent consumer load compressor set that maintains a desirable constant suction pressure using a consumer load bypass control valve and the consumer load return pressure control valve that controls the consumer load compressor's suction pressure. The discharge pressure of this consumer load compressor is thereby allowed to float at the intermediate pressure in between the first and second stage recycle compressor sets. Utilizing the unique gas management valve regulation, the unique process cycle and apparatus design in which the consumer load return flow is separate from the recycle return flow, the pressure ratios of each recycle compressor stage and all main pressures associated with the recycle return flow are allowed to vary naturally, thus providing a naturally regulated and balanced floating pressure process cycle that maintains optimal efficiency at design and off-design process cycle capacity and conditions automatically.

  9. Helium process cycle

    Science.gov (United States)

    Ganni, Venkatarao

    2008-08-12

    A unique process cycle and apparatus design separates the consumer (cryogenic) load return flow from most of the recycle return flow of a refrigerator and/or liquefier process cycle. The refrigerator and/or liquefier process recycle return flow is recompressed by a multi-stage compressor set and the consumer load return flow is recompressed by an independent consumer load compressor set that maintains a desirable constant suction pressure using a consumer load bypass control valve and the consumer load return pressure control valve that controls the consumer load compressor's suction pressure. The discharge pressure of this consumer load compressor is thereby allowed to float at the intermediate pressure in between the first and second stage recycle compressor sets. Utilizing the unique gas management valve regulation, the unique process cycle and apparatus design in which the consumer load return flow is separate from the recycle return flow, the pressure ratios of each recycle compressor stage and all main pressures associated with the recycle return flow are allowed to vary naturally, thus providing a naturally regulated and balanced floating pressure process cycle that maintains optimal efficiency at design and off-design process cycle capacity and conditions automatically.

  10. Development of a life cycle cost estimating framework for oil refineries

    OpenAIRE

    Okafor, Okechukwu Peter

    2011-01-01

    This study is concerned with the understanding of some vital features of various life cycle costing methodologies and tools. Integrating these features with the refinery technical processes would assist in the development of a life cycle costing framework for oil refineries. The aim of this research is to develop a comprehensive life cycle cost estimating framework for the evaluation of not only the total cost and system effectiveness of new refineries but also the revamping, and maintenance ...

  11. Advanced heat pump cycle

    Energy Technology Data Exchange (ETDEWEB)

    Groll, E.A.; Radermacher, R.

    1993-07-01

    The desorption and absorption process of a vapor compression heat pump with a solution circuit (VCHSC) proceeds at gliding temperature intervals, which can be adjusted over a wide range. In case that the gliding temperature intervals in the desorber and the absorber overlap, a modification of the VCHSC employing a desorber/absorber heat exchange (DAHX) can be introduced, which results in an extreme reduction of the pressure ratio. Although the DAHX-cycle has features of a two-stage cycle, it still requires only one solution pump, one separator and one compressor. Such a cycle for the working pair ammonia/water is built in the Energy Laboratory of the Center for Environmental Energy Engineering at the University of Maryland. The experimental results obtained with the research plant are discussed and compared to those calculated with a simulation program. The possible temperature lift between heat source and heat sink depending on the achievable COP are presented.

  12. Superfluid thermodynamic cycle refrigerator

    Science.gov (United States)

    Swift, Gregory W.; Kotsubo, Vincent Y.

    1992-01-01

    A cryogenic refrigerator cools a heat source by cyclically concentrating and diluting the amount of .sup.3 He in a single phase .sup.3 He-.sup.4 He solution. The .sup.3 He in superfluid .sup.4 He acts in a manner of an ideal gas in a vacuum. Thus, refrigeration is obtained using any conventional thermal cycle, but preferably a Stirling or Carnot cycle. A single phase solution of liquid .sup.3 He at an initial concentration in superfluid .sup.4 He is contained in a first variable volume connected to a second variable volume through a superleak device that enables free passage of .sup.4 He while restricting passage of .sup.3 He. The .sup.3 He is compressed (concentrated) and expanded (diluted) in a phased manner to carry out the selected thermal cycle to remove heat from the heat load for cooling below 1 K.

  13. The global sulfur cycle

    Science.gov (United States)

    Sagan, D. (Editor)

    1985-01-01

    The results of the planetary biology microbial ecology's 1984 Summer Research Program, which examined various aspects of the global sulfur cycle are summarized. Ways in which sulfur flows through the many living and chemical species that inhabit the surface of the Earth were investigated. Major topics studied include: (1) sulfur cycling and metabolism of phototropic and filamentous sulfur bacteria; (2) sulfur reduction in sediments of marine and evaporite environments; (3) recent cyanobacterial mats; (4) microanalysis of community metabolism in proximity to the photic zone in potential stromatolites; and (5) formation and activity of microbial biofilms on metal sulfides and other mineral surfaces. Relationships between the global sulfur cycle and the understanding of the early evolution of the Earth and biosphere and current processes that affect global habitability are stressed.

  14. Cycles in fossil diversity

    Energy Technology Data Exchange (ETDEWEB)

    Rohde, Robert A.; Muller, Richard A.

    2004-10-20

    It is well-known that the diversity of life appears to fluctuate during the course the Phanerozoic, the eon during which hard shells and skeletons left abundant fossils (0-542 Ma). Using Sepkoski's compendium of the first and last stratigraphic appearances of 36380 marine genera, we report a strong 62 {+-} 3 Myr cycle, which is particularly strong in the shorter-lived genera. The five great extinctions enumerated by Raup and Sepkoski may be an aspect of this cycle. Because of the high statistical significance, we also consider contributing environmental factors and possible causes.

  15. Revenue cycle management.

    Science.gov (United States)

    Manley, Ray; Satiani, Bhagwan

    2009-11-01

    With the widening gap between overhead expenses and reimbursement, management of the revenue cycle is a critical part of a successful vascular surgery practice. It is important to review the data on all the components of the revenue cycle: payer contracting, appointment scheduling, preregistration, registration process, coding and capturing charges, proper billing of patients and insurers, follow-up of accounts receivable, and finally using appropriate benchmarking. The industry benchmarks used should be those of peers in identical groups. Warning signs of poor performance are discussed enabling the practice to formulate a performance improvement plan.

  16. Global water cycle

    Science.gov (United States)

    Robertson, Franklin; Goodman, Steven J.; Christy, John R.; Fitzjarrald, Daniel E.; Chou, Shi-Hung; Crosson, William; Wang, Shouping; Ramirez, Jorge

    1993-01-01

    This research is the MSFC component of a joint MSFC/Pennsylvania State University Eos Interdisciplinary Investigation on the global water cycle extension across the earth sciences. The primary long-term objective of this investigation is to determine the scope and interactions of the global water cycle with all components of the Earth system and to understand how it stimulates and regulates change on both global and regional scales. Significant accomplishments in the past year are presented and include the following: (1) water vapor variability; (2) multi-phase water analysis; (3) global modeling; and (4) optimal precipitation and stream flow analysis and hydrologic processes.

  17. Marine nitrogen cycle

    Digital Repository Service at National Institute of Oceanography (India)

    Naqvi, S.W.A.

    and particulate organic forms, respectively) and atmospheric deposition (~50 Tg N a -1 ), a substantial fraction of which is believed to be of anthropogenic (human-made) origin. Of the various loss terms of combined nitrogen from the ocean, emission of N 2 O... and nitrous oxide budgets: Moving targets as we enter the anthropocene?, Sci. Mar., 65, 85-105, 2001. Page 2 of 3Marine nitrogen cycle - Encyclopedia of Earth 11/20/2006http://www.eoearth.org/article/Marine_nitrogen_cycle square6 Gruber, N.: The dynamics...

  18. Carbon cycle makeover

    DEFF Research Database (Denmark)

    Canfield, Donald Eugene; Kump, Lee R.

    2013-01-01

    remaining in sediments after respiration leave a residual of oxygen in the atmosphere. The source of oxygen to the atmosphere represented by organic matter burial is balanced by oxygen sinks associated with rock weathering and chemical reaction with volcanic gases. This is the long-term carbon and oxygen...... geochemical cycle. But Earth is an old planet, and oxygen levels have changed through time (2). On page 540 of this issue, Schrag et al. (3) challenge the most commonly used geochemical approach to assess long-term changes in the coupled oxygen and carbon cycles....

  19. Equine-assisted therapy

    OpenAIRE

    Barbara MacLean, LCAT, MT-BC

    2011-01-01

    Since 2008, the Samuel S. Stratton Department of Veterans Affairs (VA) Medical Center in Albany, New York, has offered the Equine-Assisted Therapy Program for veterans with posttraumatic stress disorder (PTSD). The first year, the program ran for 7 weeks, and in 2009 and 2010, we were able to run 12-week programs in the summers and a 9-week program in the fall of 2010. Also in 2010, veterans from the VA's Adaptive Sports Program enjoyed a 3-hour "sampler" afternoon. In 2011, we are holding tw...

  20. Computer - Assisted Accounting

    OpenAIRE

    SORIN-CIPRIAN TEIUŞAN

    2009-01-01

    What is computer-assisted accounting? Where is the place and what is the role of the computer in the financial-accounting activity? What is the position and importance of the computer in the accountant’s activity? All these are questions that require scientific research in order to find the answers. The paper approaches the issue of the support granted to the accountant to organize and manage the accounting activity by the computer. Starting from the notions of accounting and computer, the co...

  1. Discontinuation Decision in Assisted Reproductive Techniques

    Directory of Open Access Journals (Sweden)

    Ashraf Moini

    2009-01-01

    Full Text Available Background: In vitro fertilization (IVF and intra cytoplasmic sperm injection (ICSI are recognizedas established and increasingly successful forms of treatment for infertility, yet significant numbersof couples discontinue treatment without achieving a live birth. This study aims to identify majorfactors that influence the decision to discontinue IVF/ICSI treatments.Materials and Methods: We studied the data of 338 couples who discontinued their infertilitytreatments after three cycles; based on medical records and phone contact. The main measure wasthe reason for stopping their treatments.Results: Economical problems were cited by 212 couples (62.7%, as their mean income wassignificantly less than other couples (p<0.0001. Lack of success was reported as a reason by229 (67.8%, from whom 165 (72% also had economical problems. Achieving independent-ART pregnancy was the reason for discontinuation in 20 (5.9% couples. Psychological stress,depression and anxiety were reported as other cessation factors by 169 (50%, 148 (43.8% and 182(53.8% couples, respectively.Conclusion: This survey suggests that the most common reasons for assisted reproductivetechnique (ART discontinuation after three cycles are: prior unsuccessful cycles, economicaland psychological problems. Therefore, the substantial proportion of couples could benefit frompsychological intervention, increasing awareness of ART outcomes and health funding to copemore adequately with failed treatments.

  2. 44 CFR 206.62 - Available assistance.

    Science.gov (United States)

    2010-10-01

    ... HOMELAND SECURITY DISASTER ASSISTANCE FEDERAL DISASTER ASSISTANCE Emergency Assistance § 206.62 Available... threat of a catastrophe; (b) Coordinate all disaster relief assistance (including voluntary assistance... Stafford Act; and (g) Assist State and local governments in the distribution of medicine, food, and...

  3. RNAi-Assisted Genome Evolution (RAGE) in Saccharomyces cerevisiae.

    Science.gov (United States)

    Si, Tong; Zhao, Huimin

    2016-01-01

    RNA interference (RNAi)-assisted genome evolution (RAGE) applies directed evolution principles to engineer Saccharomyces cerevisiae genomes. Here, we use acetic acid tolerance as a target trait to describe the key steps of RAGE. Briefly, iterative cycles of RNAi screening are performed to accumulate multiplex knockdown modifications, enabling directed evolution of the yeast genome and continuous improvement of a target phenotype. Detailed protocols are provided on the reconstitution of RNAi machinery, creation of genome-wide RNAi libraries, identification and integration of beneficial knockdown cassettes, and repeated RAGE cycles. PMID:27581294

  4. Menstrual cycle pattern and fertility

    DEFF Research Database (Denmark)

    Kolstad, Henrik A.; Bonde, Jens Peter; Hjøllund, Niels Henrik;

    1999-01-01

    To characterize how the menstrual cycle pattern relates to fertility regardless of potential biases caused by inappropriate coital timing during the menstrual cycle or early embryonal loss.......To characterize how the menstrual cycle pattern relates to fertility regardless of potential biases caused by inappropriate coital timing during the menstrual cycle or early embryonal loss....

  5. The Science of Cycling

    Science.gov (United States)

    Crompton, Zoe; Daniels, Shelley

    2014-01-01

    Children are engaged by finding out about science in the real world (Harlen, 2010). Many children will be cyclists or will have seen or heard about the success of British cyclists in the Olympics and the Tour de France. This makes cycling a good hook to draw children into learning science. It is also a good cross-curricular topic, with strong…

  6. Re-Cycling

    Science.gov (United States)

    Brown, Robert W.; Covault, Corbin E.

    2015-01-01

    An old comedy routine on Saturday Night Live by Father Guido Sarducci introduced a "Five-Minute University," because five minutes is all that's remembered after graduation anyway. In counterpoint, we discuss "cycling," a teaching method for memory enhancement. Our principal implementation consists of offering a simple version…

  7. Educational Business Cycles

    DEFF Research Database (Denmark)

    Tepe, Markus; Vanhuysse, Pieter

    Strong institutional constraints and better-informed voters may lead re-election seeking incumbents to shift the use of political business cycle mechanisms away from monetary and fiscal policy towards other policy domains that are more easily manipulable, targetable, and timeable. We investigate...

  8. Educational Business Cycles

    DEFF Research Database (Denmark)

    Tepe, Markus; Vanhuysse, Pieter

    2009-01-01

    Strong institutional constraints and better-informed voters may lead re-election seeking incumbents to shift the use of political business cycle mechanisms away from monetary and fiscal policy towards other policy domains that are more easily manipulable, targetable, and timeable. We investigate...

  9. Boundedly rational credit cycles

    OpenAIRE

    S??ez, Mar??a

    1996-01-01

    We propose an evolutionary model of a credit market. We show that the economy exhibits credit cycles. The model predicts dynamics which are consistent with some evidence about the Great Depression. Real shocks trigger episodes of credit--crunch which are observed in the process of adjustment towards the post shock equilibrium.

  10. Life Cycle Collection Management

    Directory of Open Access Journals (Sweden)

    Helen Shenton

    2003-09-01

    Full Text Available Life cycle collection management is a way of taking a long-term approach to the responsible stewardship of the British Library's collections and is one of the Library's strategic strands. It defines the different stages in a collection item's existence over time. These stages range from selection and acquisitions processing, cataloguing and press marking, through to preventive conservation, storage and retrieval. Life cycle collection management seeks to identify the costs of each stage in order to show the economic interdependencies between the phases over time. It thereby aims to demonstrate the long-term consequences of what the library takes into its collections, by making explicit the financial and other implications of decisions made at the beginning of the life cycle for the next 100 plus years. This paper describes the work over the past year at the British Library on this complex and complicated subject. It presents the emerging findings and suggests how it can be used for practical reasons (by individual curators and selectors and for economic, governance and political purposes. The paper describes the next steps in the project, for example, on a predictive data model. The British Library is seeking to benchmark itself against comparable organisations in this area. It intends to work with others on specific comparison for example, of life cycle costing of electronic and paper journals, as a prelude to eliding digital and 'traditional' formats.

  11. Skills, sunspots and cycles

    DEFF Research Database (Denmark)

    Busato, Francesco; Marchetti, Enrico

    This paper explores the ability of a class of one-sector,multi-input models to generate indeterminate equilibrium paths, andendogenous cycles, without relying on factors' hoarding. The modelpresents a novel theoretical economic mechanism that supportssunspot-driven expansions without requiring up...

  12. The Pneumocystis life cycle

    Directory of Open Access Journals (Sweden)

    Cécile-Marie Aliouat-Denis

    2009-05-01

    Full Text Available First recognised as "schizonts" of Trypanosoma cruzi, Pneumocystis organisms are now considered as part of an early-diverging lineage of Ascomycetes. As no robust long-term culture model is available, most data on the Pneumocystis cell cycle have stemmed from ultrastructural images of infected mammalian lungs. Although most fungi developing in animals do not complete a sexual cycle in vivo, Pneumocystis species constitute one of a few exceptions. Recently, the molecular identification of several key players in the fungal mating pathway has provided further evidence for the existence of conjugation and meiosis in Pneumocystisorganisms. Dynamic follow-up of stage-to-stage transition as well as studies of stage-specific proteins and/or genes would provide a better understanding of the still hypothetical Pneumocystislife cycle. Although difficult to achieve, stage purification seems a reasonable way forward in the absence of efficient culture systems. This mini-review provides a comprehensive overview of the historical milestones leading to the current knowledge available on the Pneumocystis life cycle.

  13. Stellar magnetic cycles

    Science.gov (United States)

    Baliunas, S. L.

    2004-05-01

    Is hope for understanding the solar magnetic cycle to be found in stars? Observations of stars with significant sub-surface convective zones -- masses smaller than about 1.5 solar masses on the lower main sequence and many types of cool, post-main-sequence stars -- indicate the presence of surface and atmospheric inhomogeneities analogous to solar magnetic features, making stellar magnetic activity a cosmically widespread phenomenon. Observations have been made primarily in visible wavelengths, and important information has also been derived from the ultraviolet and x-ray spectrum regions. Interannual to interdecadal variability of spectrum indicators of stellar magnetic features is common, and in some cases similar in appearance to the 11-year sunspot cycle. Successful models of the physical processes responsible for stellar magnetic cycles, typically cast as a magnetohydrodynamic dynamo, require advances in understanding not only convection but also the magnetic field's interaction with it. The observed facts that underpin the hope for models will be summarized. Properties of stellar magnetic cycles will be compared and contrasted with those of the sun, including inferences from paleo-environmental reservoirs that contain information on solar century- to millennial-scale magnetic variability. Partial support of this research came from NASA NAG5-7635, NRC COBASE, CRDF 322, MIT-MSG 5710001241, JPL 1236821, AF 49620-02-1-0194, Richard Lounsberry Foundation, Langley-Abbot, Rollins, Scholarly Studies and James Arthur Funds (Smithsonian Institution) and several generous individuals.

  14. Big Data and Cycling

    NARCIS (Netherlands)

    Romanillos, Gustavo; Zaltz Austwick, Martin; Ettema, Dick; De Kruijf, Joost

    2016-01-01

    Big Data has begun to create significant impacts in urban and transport planning. This paper covers the explosion in data-driven research on cycling, most of which has occurred in the last ten years. We review the techniques, objectives and findings of a growing number of studies we have classified

  15. [Computer-assisted surgery].

    Science.gov (United States)

    Micali, Salvatore

    2011-01-01

    The broad range of Computer Assisted Surgery (CAS) represents the integration of computer technology in surgical procedures for presurgical planning, guiding or manipulation. Surgical robots and surgical endoscopic navigation are the most challenging applications to urology. A surgical robot is defined as a computer-controlled manipulator with artificial sensing which can be programmed to move, and position tools to carry out surgical tasks. In urology, robots have been tested in two areas: endourology and laparoscopy. Surgical navigation allows the surgeon to process data from pre- and intraoperative sources, aiming at purification and presentation of the most relevant information. Image-guided systems (IGS), augmented reality (AR) and navigation in endoscopic soft tissue surgery represent the three main topics of surgical urological navigation. IGS involve matching the coordinates from medical imaging (preoperative registration) with coordinates from the patient in the operating room (registration and updating images). IGS have become the standard of care in providing navigational assistance during neurosurgery, offering subsurface and functional information to the surgeon. PMID:21452161

  16. Meson assisted dibaryons

    CERN Document Server

    Gal, Avraham

    2015-01-01

    We discuss a new type of L=0 positive-parity dibaryons, pion-B-B', where the dominant binding mechanism is provided by resonating p-wave pion-baryon interactions. Recent calculations of such pion assisted dibaryons are reviewed with special emphasis placed on the non-strange I(JP)=1(2+) N-Delta dibaryon D_{12}(2150) studied recently at JLab, and on the 0(3+) Delta-Delta dibaryon D_{03}(2380) discovered recently by the WASA-at-COSY Collaboration. We review recent searches by the HADES Collaboration at GSI and by the E15 and E27 Experiments at J-PARC for a strangeness S=-1 I(JP)=1/2(0-) K-pp dibaryon and perhaps also for a strange I(JP)=3/2(2+) N-Sigma(1385) pion assisted dibaryon Y_{3/2(2+)}(2270). Charm C=+1 dibaryons, predicted with these same I(JP) values, are also briefly reviewed.

  17. The Geologic Nitrogen Cycle

    Science.gov (United States)

    Johnson, B. W.; Goldblatt, C.

    2013-12-01

    N2 is the dominant gas in Earth's atmosphere, and has been so through the majority of the planet's history. Originally thought to only be cycled in significant amounts through the biosphere, it is becoming increasingly clear that a large degree of geologic cycling can occur as well. N is present in crustal rocks at 10s to 100s of ppm and in the mantle at 1s to perhaps 10s of ppm. In light of new data, we present an Earth-system perspective of the modern N cycle, an updated N budget for the silicate Earth, and venture to explain the evolution of the N cycle over time. In an fashion similar to C, N has a fast, biologically mediated cycle and a slower cycle driven by plate tectonics. Bacteria fix N2 from the atmosphere into bioavailable forms. N is then cycled through the food chain, either by direct consumption of N-fixing bacteria, as NH4+ (the primary waste form), or NO3- (the most common inorganic species in the modern ocean). Some organic material settles as sediment on the ocean floor. In anoxic sediments, NH4+ dominates; due to similar ionic radii, it can readily substitute for K+ in mineral lattices, both in sedimentary rocks and in oceanic lithosphere. Once it enters a subduction zone, N may either be volatilized and returned to the atmosphere at arc volcanoes as N2 or N2O, sequestered into intrusive igneous rocks (as NH4+?), or subducted deep into the mantle, likely as NH4+. Mounting evidence indicates that a significant amount of N may be sequestered into the solid Earth, where it may remain for long periods (100s m.y.) before being returned to the atmosphere/biosphere by volcanism or weathering. The magnitude fluxes into the solid Earth and size of geologic N reservoirs are poorly constrained. The size of the N reservoirs contained in the solid Earth directly affects the evolution of Earth's atmosphere. It is possible that N now sequestered in the solid Earth was once in the atmosphere, which would have resulted in a higher atmospheric pressure, and

  18. Metal-Assisted Hydrogen Storage on Pt-Decorated Single-Walled Carbon Nanohorns

    Energy Technology Data Exchange (ETDEWEB)

    Liu, Yun [National Institute of Standards and Technology (NIST); Brown, Craig [National Institute of Standards and Technology (NIST); Neumann, Dan [National Institute of Standards and Technology (NIST); Geohegan, David B [ORNL; Puretzky, Alexander A [ORNL; Rouleau, Christopher M [ORNL; Hu, Hui [ORNL; Styers-Barnett, David J [ORNL; Krasnov, Pavel O. [Rice University; Yakobson, Boris I. [Rice University

    2012-01-01

    The catalytic dissociation of hydrogen molecules by metal nanoparticles and spillover of atomic hydrogen onto various supports is a well-established phenomenon in catalysis. However, the mechanisms by which metal catalyst nanoparticles can assist in enhanced hydrogen storage on high-surface area supports are still under debate. Experimental measurements of metal-assisted hydrogen storage have been hampered by inaccurate estimation of atomically stored hydrogen deduced from comparative measurements between metal-decorated and undecorated samples. Here we report a temperature cycling technique combined with inelastic neutron scattering (INS) measurements of quantum rotational transitions of molecular H2 to more accurately quantify adsorbed hydrogen aided by catalytic particles using single samples. Temperature cycling measurements on single-wall carbon nanohorns (SWCNHs) decorated with 2-3 nm Pt nanoparticles showed 0.17 % mass fraction of metal-assisted hydrogen storage (at 0.5 MPa) at room temperature. Temperature cycling of Pt-decorated SWCNHs using a Sievert s apparatus also indicated metal-assisted hydrogen adsorption of 0.08 % mass fraction at 5 MPa at room temperature. No additional metal-assisted hydrogen storage was observed in SWCNH samples without Pt nanoparticles cycled to room temperature, or in Pt-SWCNHs when the temperature was cycled to less than 150K. The possible formation of C-H bonds due to spilled-over atomic hydrogen was also investigated using both INS and density functional theory calculations.

  19. The Management of Teaching Projects in the Translation Workshop within the Purview of Cognitive Apprenticeship%认知学徒制视阈下笔译工作坊教学项目管理构想

    Institute of Scientific and Technical Information of China (English)

    李然

    2016-01-01

    Contemporary translation industry has become the essential component of cultural industry and its deepening in social dimension put the cultivation of professional translators at the central stage of the field .As the most practical pedagogical model for the cultivation of the capable translators possessing translation competence and literacy ,"workshop"has been extensively employed in the studies of translation teaching .Under the guidance of Project Management Knowledge System ,this paper provides a theoretical delineation of translation workshop ,the management and working of the teaching projects in translation workshop .By integrating the theoretical model of cognitive apprenticeship with project-based translation workshop teaching ,the paper further probes into the characteristics of cognitive apprenticeship teaching model in translation workshop and its teaching sequence ,laying the theoretical foundation for the empirical pedagogical studies of project-based translation workshop .%翻译产业是文化产业的重要组成部分,其社会维度的纵深发展使得翻译专业人才的培养成为了业内关注的焦点。而“工作坊”作为培养兼具翻译能力和译员素质的翻译人才的教学模式业已被广泛应用到了翻译教学研究中。通过对笔译工作坊理论内涵的界定,在项目管理知识体系的指导下构建了笔译工作坊教学项目的管理与运作模式,并结合认知学徒制的理论模型进一步探究笔译工作坊认知学徒制教学模式的特征及其教学序列,以求为实证性的笔译工作坊教学研究奠定理论基础。

  20. The success of assisted colonization and assisted gene flow depends on phenology.

    Science.gov (United States)

    Wadgymar, Susana M; Cumming, Matthew N; Weis, Arthur E

    2015-10-01

    Global warming will jeopardize the persistence and genetic diversity of many species. Assisted colonization, or the movement of species beyond their current range boundary, is a conservation strategy proposed for species with limited dispersal abilities or adaptive potential. However, species that rely on photoperiodic and thermal cues for development may experience conflicting signals if transported across latitudes. Relocating multiple, distinct populations may remedy this quandary by expanding genetic variation and promoting evolutionary responses in the receiving habitat--a strategy known as assisted gene flow. To better inform these policies, we planted seeds from latitudinally distinct populations of the annual legume, Chamaecrista fasciculata, in a potential future colonization site north of its current range boundary. Plants were exposed to ambient or elevated temperatures via infrared heating. We monitored several life history traits and estimated patterns of natural selection to determine the adaptive value of plastic responses. To assess the feasibility of assisted gene flow between phenologically distinct populations, we counted flowers each day and estimated the degree of temporal isolation between populations. Increased temperatures advanced each successive phenological trait more than the last, resulting in a compressed life cycle for all but the southern-most population. Warming altered patterns of selection on flowering onset and vegetative biomass. Population performance was dependent on latitude of origin, with the northern-most population performing best under ambient conditions and the southern-most performing most poorly, even under elevated temperatures. Among-population differences in flowering phenology limited the potential for genetic exchange among the northern- and southern-most populations. All plastic responses to warming were neutral or adaptive; however, photoperiodic constraints will likely necessitate evolutionary responses for

  1. Assistance to Tourism: Exploratory Estimates

    OpenAIRE

    Productivity Commission

    2005-01-01

    In April 2005, the research paper into ‘Assistance to Tourism: Exploratory Estimates’ was released. It is the first comprehensive attempt to quantify the extent of assistance to tourism on a comparable basis to that for other industries in Australia. While care is needed in interpreting the results, the estimates suggest that tourism receives a lower rate of Australian Government assistance than the average for the manufacturing and primary sectors, but more than for other service industries....

  2. Assisted closure of fasciotomy wounds

    OpenAIRE

    Fowler, J. R.; Kleiner, M. T.; Das, R.; Gaughan, J.P.; Rehman, S.

    2012-01-01

    Introduction Negative pressure wound therapy (NPWT) and vessel loop assisted closure are two common methods used to assist with the closure of fasciotomy wounds. This retrospective review compares these two methods using a primary outcome measurement of skin graft requirement. Methods A retrospective search was performed to identify patients who underwent fasciotomy at our institution. Patient demographics, location of the fasciotomy, type of assisted closure, injury characteristics, need for...

  3. Employee Assistance Program Issues

    Science.gov (United States)

    Gettleman, Alan G.; McGuire, William

    1999-01-01

    Employee Assistance Program (EAP) officers, as well as personnel in other disciplines from eight NASA Centers, attended this breakout session. Ms. Brenda Blair, MA, CEAP, a guest speaker at the conference, also attended as a consultant. Representatives from the NASA Centers introduced themselves and spoke briefly about their programs. In a discussion related to the conference theme on benchmarking, quality control issues within the EAP community and adequate documentation of cases were addressed. Disposition and provision for quality assurance checks for EAP providers in single person offices were also discussed. Ms. Blair presented methods for consulting with other NASA personnel in single person EAP offices as a quality control measure. EAP intervention in critical incidents was discussed. The question of whether EAP assistance is an asset or a potential liability in those situations was addressed. Suggestions were made of topics for future EAP video-teleconference topics. A program on EAP ethics was planned for a September video teleconference. Each person was asked to provide intake forms they use to Mr. Gettleman or Ms. Blair. Ms. Blair said she would review the forms to ensure that adequate notification is provided to the client for confidentiality. She would also review them to ensure they have adequate limits of confidentiality--a topic for future video teleconferencing. Mr. Gettleman described the NASA initiative to reduce stresses in the workplace, and the activities of an ad-hoc EAP group that will make recommendations to NASA senior management. Alternative training methods were discussed for reaching target audiences such as employees at risk, supervisors, and others. Pfc. David A. Pendleton, Victim Assistance Coordinator, U.S. Capitol Police. U.S. House of Representatives made a special presentation. Pfc. Pendleton was on duty during the tragic shooting of two Federal guards at the U.S. Capitol. He related the events immediately after the incident. He

  4. Urea cycle disorders: brain MRI and neurological outcome

    Energy Technology Data Exchange (ETDEWEB)

    Bireley, William R. [University of Colorado, Department of Radiology, Aurora, CO (United States); Van Hove, Johan L.K. [University of Colorado, Department of Genetics and Inherited Metabolic Diseases, Aurora, CO (United States); Gallagher, Renata C. [Children' s Hospital Colorado, Department of Genetics and Inherited Metabolic Diseases, Aurora, CO (United States); Fenton, Laura Z. [Children' s Hospital Colorado, Department of Pediatric Radiology, Aurora, CO (United States)

    2012-04-15

    Urea cycle disorders encompass several enzyme deficiencies that can result in cerebral damage, with a wide clinical spectrum from asymptomatic to severe. The goal of this study was to correlate brain MRI abnormalities in urea cycle disorders with clinical neurological sequelae to evaluate whether MRI abnormalities can assist in guiding difficult treatment decisions. We performed a retrospective chart review of patients with urea cycle disorders and symptomatic hyperammonemia. Brain MRI images were reviewed for abnormalities that correlated with severity of clinical neurological sequelae. Our case series comprises six urea cycle disorder patients, five with ornithine transcarbamylase deficiency and one with citrullinemia type 1. The observed trend in distribution of brain MRI abnormalities as the severity of neurological sequelae increased was the peri-insular region first, extending into the frontal, parietal, temporal and, finally, the occipital lobes. There was thalamic restricted diffusion in three children with prolonged hyperammonemia. Prior to death, this site is typically reported to be spared in urea cycle disorders. The pattern and extent of brain MRI abnormalities correlate with clinical neurological outcome in our case series. This suggests that brain MRI abnormalities may assist in determining prognosis and helping clinicians with subsequent treatment decisions. (orig.)

  5. Science Illiteracy: Breaking the Cycle

    Science.gov (United States)

    Lebofsky, L. A.; Lebofsky, N. R.

    2003-12-01

    At the University of Arizona, as at many state universities and colleges, the introductory science classes for non-science majors may be the only science classes that future K--8 teachers will take. The design of the UA's General Education program requires all future non-science certified teachers to take the General Education science classes. These classes are therefore an ideal venue for the training of the state's future teachers. Many students, often including future teachers, are ill-prepared for college, i.e., they lack basic science content knowledge, basic mathematics skills, and reading and writing skills. They also lack basic critical thinking skills and study skills. It is within this context that our future teachers are trained. How do we break the cycle of science illiteracy? There is no simple solution, and certainly not a one-size-fits-all panacea that complements every professor's style of instruction. However, there are several programs at the University of Arizona, and also principles that I apply in my own classes, that may be adaptable in other classrooms. Assessment of K--12 students' learning supports the use of inquiry-based science instruction. This approach can be incorporated in college classes. Modeling proven and productive teaching methods for the future teachers provides far more than ``just the facts,'' and all students gain from the inquiry approach. Providing authentic research opportunities employs an inquiry-based approach. Reading (outside the textbook) and writing provide feedback to students with poor writing and critical thinking skills. Using peer tutors and an instant messaging hot line gives experience to the tutors and offers "comfortable" assistance to students.

  6. Radiology for dental assistants

    International Nuclear Information System (INIS)

    The book provides dental assistants with the knowledge they need to apply X-rays in a safe and economical manner. Starting from the theoretical fundamentals of radiophysics, the biologic effects of X-rays leading to the protective requirements of the new X-Ray Ordinance are explained. The main topics are the adjustment rules for dental film, panorama and cassette film images which are explained in detail and illustrated, the topics of materials and equipment, and processing up to the stage of a safe guarding. In chapters dealing with the practical points of view, the applications in paedodentistry and orthodontics, in endodonty, parodontology and in imaging the temporo-mandibular joints are described; these chapters also deal with recognizing and avoiding mistakes. An appendix with data worth knowing rounds up the contents. The book is based on numerous training seminars. (orig./MG)

  7. Cell-Assisted Lipotransfer

    DEFF Research Database (Denmark)

    Toyserkani, Navid Mohamadpour; Quaade, Marlene Louise; Sørensen, Jens Ahm

    2016-01-01

    -derived stromal cells (ASCs) to enrich the fat graft, a procedure termed cell-assisted lipotransfer (CAL). The aim of this review was to systematically review the current preclinical and clinical evidence for the efficacy of CAL compared with conventional lipotransfer. MATERIALS AND METHODS: A systematic search...... was performed on PubMed and other databases to identify all preclinical and clinical studies where CAL with ASCs was compared with conventional lipotransfer. A total of 20 preclinical studies and seven clinical studies were included in the review. RESULTS: The preclinical studies consisted of 15 studies using...... immunodeficient animal models and five studies using immunocompetent studies. Seventeen studies examined weight/volume retention of which 15 studies favored CAL over conventional lipotransfer. One clinical study did not find any efficacy of CAL and the remaining six studies favored CAL. CONCLUSIONS: The present...

  8. Neutrino assisted gauge mediation

    International Nuclear Information System (INIS)

    Recent observation shows that the Higgs mass is at around 125 GeV while the prediction of the minimal supersymmetric standard model is below 120 GeV for stop mass lighter than 2 TeV unless the top squark has a maximal mixing. We consider the right-handed neutrino supermultiplets as messengers in addition to the usual gauge mediation to obtain sizeable trilinear soft parameters At needed for the maximal stop mixing. Neutrino messengers can explain the observed Higgs mass for stop mass around 1 TeV. Neutrino assistance can also generate charged lepton flavor violation including μ→e γ as a possible signature of the neutrino messengers. We consider the S4 discrete flavor model and show the relation of the charged lepton flavor violation, θ 13 of neutrino oscillation and the muon's g-2. (orig.)

  9. Stirling cycle cryogenic cooler

    Science.gov (United States)

    Gasser, M. G.; Sherman, A.; Studer, P. A.; Daniels, A.; Goldowsky, M. P. (Inventor)

    1983-01-01

    A long lifetime Stirling cycle cryogenic cooler particularly adapted for space applications is described. It consists of a compressor section centrally aligned end to end with an expansion section, and respectively includes a reciprocating compressor piston and displacer radially suspended in interconnecting cylindrical housings by active magnetic bearings and has adjacent reduced clearance regions so as to be in noncontacting relationship therewith and wherein one or more of these regions operate as clearance seals. The piston and displacer are reciprocated in their housings by linear drive motors to vary the volume of respectively adjacent compression and expansion spaces which contain a gaseous working fluid and a thermal regenerator to effect Stirling cycle cryogenic cooling.

  10. Stirling cycle cryogenic cooler

    Science.gov (United States)

    Gasser, M. G.; Sherman, A.; Studer, P. A.; Daniels, A.; Goldowsky, M. P.

    1983-06-01

    A long lifetime Stirling cycle cryogenic cooler particularly adapted for space applications is described. It consists of a compressor section centrally aligned end to end with an expansion section, and respectively includes a reciprocating compressor piston and displacer radially suspended in interconnecting cylindrical housings by active magnetic bearings and has adjacent reduced clearance regions so as to be in noncontacting relationship therewith and wherein one or more of these regions operate as clearance seals. The piston and displacer are reciprocated in their housings by linear drive motors to vary the volume of respectively adjacent compression and expansion spaces which contain a gaseous working fluid and a thermal regenerator to effect Stirling cycle cryogenic cooling.

  11. Gap Cycling for SWIFT

    CERN Document Server

    Corum, Curtis A; Snyder, Carl J; Garwood, Michael

    2013-01-01

    Purpose: SWIFT (SWeep Imaging with Fourier Transformation) is a non- Cartesian MRI method with unique features and capabilities. In SWIFT, radiofrequency (RF) excitation and reception are performed nearly simultaneously, by rapidly switching between transmit and receive during a frequency-swept RF pulse. Because both the transmitted pulse and data acquisition are simultaneously amplitude-modulated in SWIFT (in contrast to continuous RF excitation and uninterrupted data acquisition in more familiar MRI sequences), crosstalk between different frequency bands occurs in the data. This crosstalk leads to a "bulls-eye" artifact in SWIFT images. We present a method to cancel this inter-band crosstalk by cycling the pulse and receive gap positions relative to the un-gapped pulse shape. We call this strategy "gap cycling." Methods: We carry out theoretical analysis, simulation and experiments to characterize the signal chain, resulting artifacts, and their elimination for SWIFT. Results: Theoretical analysis reveals t...

  12. Archaea in biogeochemical cycles.

    Science.gov (United States)

    Offre, Pierre; Spang, Anja; Schleper, Christa

    2013-01-01

    Archaea constitute a considerable fraction of the microbial biomass on Earth. Like Bacteria they have evolved a variety of energy metabolisms using organic and/or inorganic electron donors and acceptors, and many of them are able to fix carbon from inorganic sources. Archaea thus play crucial roles in the Earth's global geochemical cycles and influence greenhouse gas emissions. Methanogenesis and anaerobic methane oxidation are important steps in the carbon cycle; both are performed exclusively by anaerobic archaea. Oxidation of ammonia to nitrite is performed by Thaumarchaeota. They represent the only archaeal group that resides in large numbers in the global aerobic terrestrial and marine environments on Earth. Sulfur-dependent archaea are confined mostly to hot environments, but metal leaching by acidophiles and reduction of sulfate by anaerobic, nonthermophilic methane oxidizers have a potential impact on the environment. The metabolisms of a large number of archaea, in particular those dominating the subsurface, remain to be explored.

  13. Menstrual cycle pattern and fertility

    DEFF Research Database (Denmark)

    Kolstad, Henrik A.; Bonde, Jens Peter; Hjøllund, Niels Henrik;

    1999-01-01

    OUTCOME MEASURE(S): The probability of pregnancy occurring within one menstrual cycle (fecundity). RESULT(S): In women who had a cycle length that differed by >10 days from the usual cycle length, fecundity was approximately 25% that of women who had no variation (odds ratio 0.25, 95% confidence interval...... 0.09-0.68). When the combined effect of cycle variation and cycle length was assessed, cycle variation was a persistent strong predictor of fecundity. CONCLUSION(S): The mechanisms of the present findings probably are female functional disturbances in ovulation, conception, implantation......, or sustained pregnancy, linked with variable menstrual cycle length. Thus, identification of medical and environmental causes of abnormal menstrual cycle patterns may provide clues to the causes of infertility. Moreover, the menstrual cycle pattern also should be taken into consideration in the clinical...

  14. Assessing Cycling Participation in Australia

    Directory of Open Access Journals (Sweden)

    Chris Rissel

    2013-01-01

    Full Text Available Planning and evaluating cycling programs at a national or state level requires accurate measures of cycling participation. However, recent reports of cycling participation have produced very different estimates. This paper examines the reported rates of cycling in five recent population surveys of cycling. Three surveys (one national and two from Sydney asking respondents when they last rode a bicycle generated cycling participation (cycled in the past year estimates of 29.7%, 34.1% and 28.9%. Two other national surveys which asked participants to recall (unprompted any physical activity done for exercise, recreation or sport in the previous 12 months, estimated cycling in the past year as 11.1% and 6.5%. While unprompted recall of cycling as a type of physical activity generates lower estimates of cycling participation than specific recall questions, both assessment approaches produced similar patterns of cycling by age and sex with both approaches indicating fewer women and older adults cycling. The different question styles most likely explain the substantial discrepancies between the estimates of cycling participation. Some differences are to be expected due to sampling variability, question differences, and regional variation in cycling.

  15. The nuclear fuel cycle

    International Nuclear Information System (INIS)

    The papers presented at the International Conference on The Nuclear Fuel Cycle, held at Stockholm, 28 to 31 October 1975, are reviewed. The meeting, organised by the U.S. Atomic Industrial Forum, and the Swedish Nuclear Forum, was concerned more particularly with economic, political, social and commercial aspects than with tecnology. The papers discussed were considered under the subject heading of current status, uranium resources, enrichment, and reprocessing. (U.K.)

  16. Concordance in Business Cycles

    OpenAIRE

    C. John McDermott; Alasdair Scott

    2000-01-01

    We study the properties of a test that determines whether two time series comove. The test computes a simple nonparametric statistic for “concordance,” which describes the proportion of time that the cycles of two series spend in the same phase. We establish the size and power properties of this test. As an illustration, the procedures are applied to output series from selected major industrial countries. We find limited evidence of widespread concordance for these countries.

  17. Cycles in Nonlinear Macroeconomics

    OpenAIRE

    Voronin, Anatoly V.; Chernyshov, Sergey I.

    2007-01-01

    The monograph is concerned with some key problems of the theory of nonlinear economic dynamics. The authors' concept consists in analyzing the problem of structural instability of economic systems within the framework of the synergetic paradigm. As examples, the classical models of macroeconomics are considered. The authors present the results of the study of the phenomenon of self-organization in open and nonequilibrium economic systems. The generation of limit cycles, as well as of more com...

  18. Steps and cycles

    OpenAIRE

    Chadwick, Andy

    2015-01-01

    Andy Chadwick* explains how interaction between continuous trend with natural climate cycles produces the observed stepped pattern of global warming Climate-change ‘sceptics’ have made great mileage out of the current hiatus in observed global warming. Atmospheric temperatures have not really increased since the turn of the 21st Century, a fact frequently cited as incompatible with, or even disproving, global warming. These same commentators draw a discreet veil over the fact that temper...

  19. FUZZY REASONING IN CYCLES

    Institute of Scientific and Technical Information of China (English)

    曹立明

    1990-01-01

    By the similarity between the syllogism in logic and a path proposition in graph theory,a new concept,fuzzy reasoning graph G has been given in this paper. Transitive closure has been studied and used to do reasoning related to self-loop in G,and an algorithm has been designed to cope with reasoning in other cycles in G. Both approaches are applicable and efficient.

  20. Nuclear Fuel Cycle

    Energy Technology Data Exchange (ETDEWEB)

    Dale, Deborah J. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2014-10-28

    These slides will be presented at the training course “International Training Course on Implementing State Systems of Accounting for and Control (SSAC) of Nuclear Material for States with Small Quantity Protocols (SQP),” on November 3-7, 2014 in Santa Fe, New Mexico. The slides provide a basic overview of the Nuclear Fuel Cycle. This is a joint training course provided by NNSA and IAEA.

  1. International Business Cycle

    Directory of Open Access Journals (Sweden)

    Marek Lubiński

    2007-06-01

    Full Text Available Prime stylized facts of international business cycle theory refer to positive correlation in the cyclical components of important macroeconomic variables across countries. However a number of indicators of business cycle synchronization do not point to clear trends. It can be ascribed to the fact that different forces influence level of business cycle correlation. When investigating into the forces behind the commonness in aggregate fluctuations economic research seems to have pointed in two directions. One strand of the literature examines the idea of common exogenous shocks that affect economies simultaneously. In addition to that economic interdependencies such as trade in goods and services or capital account transactions may serve as the channels through which disturbances spill over across countries.The observed degree of output co movement reflects both the nature of the shocks that have occurred and the degree of economic interdependence. In the periods when common shocks prevail level of synchronization is usually higher than in times of transmission dominance.

  2. Desiccant-assisted cooling fundamentals and applications

    CERN Document Server

    Brum, Nisio

    2014-01-01

    The increasing concern with indoor air quality has led to air-quality standards with increased ventilation rates. Although increasing the volume flow rate of outside air is advisable from the perspective of air-quality, it is detrimental to energy consumption, since the outside air has to be brought to the comfort condition before it is insufflated to the  conditioned ambient. Moreover, the humidity load carried within outside air has challenging HVAC engineers to design cooling units which are able to satisfactorily handle both sensible and latent contributions to the thermal load. This constitutes a favorable scenario for the use of solid desiccants to assist the cooling units. In fact, desiccant wheels have been increasingly applied by HVAC designers, allowing distinct processes for the air cooling and dehumidification. In fact, the ability of solid desiccants in moisture removal is effective enough to allow the use of evaporative coolers, in opposition to the traditional vapor-compression cycle, resultin...

  3. NSF assistant director for geosciences announces resignation

    Science.gov (United States)

    Zielinki, Sarah

    Margaret Leinen, assistant director for geosciences at the U.S. National Science Foundation, announced on 7 December that she will be leaving NSF in January 2007 to become the chief science officer and vice president of Climos, a new company based in San Francisco, Calif., that plans to develop solutions to reduce greenhouse gases. Leinen will oversee efforts to better understand the planet's carbon cycle to address global climate change issues.Leinen has managed the Directorate for Geosciences since 2000. She also served as vice chair of the U.S. Climate Change Science Program, which coordinates federal climate change research, and as co-chair of the National Science and Technology Council's Joint Committee on Ocean Science and Technology.

  4. Terrestrial Carbon Cycle Variability

    Science.gov (United States)

    Baldocchi, Dennis; Ryu, Youngryel; Keenan, Trevor

    2016-01-01

    A growing literature is reporting on how the terrestrial carbon cycle is experiencing year-to-year variability because of climate anomalies and trends caused by global change. As CO 2 concentration records in the atmosphere exceed 50 years and as satellite records reach over 30 years in length, we are becoming better able to address carbon cycle variability and trends. Here we review how variable the carbon cycle is, how large the trends in its gross and net fluxes are, and how well the signal can be separated from noise. We explore mechanisms that explain year-to-year variability and trends by deconstructing the global carbon budget. The CO 2 concentration record is detecting a significant increase in the seasonal amplitude between 1958 and now. Inferential methods provide a variety of explanations for this result, but a conclusive attribution remains elusive. Scientists have reported that this trend is a consequence of the greening of the biosphere, stronger northern latitude photosynthesis, more photosynthesis by semi-arid ecosystems, agriculture and the green revolution, tropical temperature anomalies, or increased winter respiration. At the global scale, variability in the terrestrial carbon cycle can be due to changes in constituent fluxes, gross primary productivity, plant respiration and heterotrophic (microbial) respiration, and losses due to fire, land use change, soil erosion, or harvesting. It remains controversial whether or not there is a significant trend in global primary productivity (due to rising CO 2, temperature, nitrogen deposition, changing land use, and preponderance of wet and dry regions). The degree to which year-to-year variability in temperature and precipitation anomalies affect global primary productivity also remains uncertain. For perspective, interannual variability in global gross primary productivity is relatively small (on the order of 2 Pg-C y -1) with respect to a large and uncertain background (123 +/- 4 Pg-C y -1), and

  5. 基于数字化平台的认知学徒制教学技能实训研究%A study on Teaching Skills Training of Digital Platform-based Cognitive Apprenticeship

    Institute of Scientific and Technical Information of China (English)

    朱跃龙

    2015-01-01

    基于情境认知理论,构建体现认知学徒制的数字化教师教学技能实训平台,能够实现教学技能训练的远程化、情景化及可视化。基于数字化平台的教学技能的支架式、交互式实训,有利于优化教学技能实训流程,有效地提高教学技能实训的效果。%Based on the situated cognition theory, digital teaching skills training platform construction, which embodies cognitive apprenticeship, can help to realize the long-distance, situational and visual teaching skills training.The scaffolding and interac-tive teaching skills training, based on the digital platform, makes for optimizing the teaching skill training process and effectively improves the effect of teaching skill training.

  6. Hotel Management Personnel Training Based on the "Modern Apprenticeship"mode in Higher Vocational College%基于"现代学徒制"的高职酒店管理专业人才培养

    Institute of Scientific and Technical Information of China (English)

    罗晓黎

    2015-01-01

    It's urgent needs for higher occupation education in China to improve the quality of technical personnel. Modern apprenticeship mode can solve the bottleneck encountered in the talent training of hotel management major in higher vocational college. Through three years' interactive training, higher vocational colleges can realize the "zero distance" job-taking and improve the comprehensive quality of the students, which provide the possibility for students to take management positions in short time.%我国高等职业教育迫切需要提高技术技能人才质量,现代学徒制可以解决高职酒店管理专业人才培养遇到的瓶颈.通过校企三年交互式培养,实现学生"零距离"上岗以及综合素质的提高,为学生尽快走上管理岗位提供了可能.

  7. Bifurcation of limit cycles near equivariant compound cycles

    Institute of Scientific and Technical Information of China (English)

    Mao-an HAN; Tong-hua ZHANG; Hong ZANG

    2007-01-01

    In this paper we study some equivariant systems on the plane. We first give some criteria for the outer or inner stability of compound cycles of these systems. Then we investigate the number of limit cycles which appear near a compound cycle of a Hamiltonian equivariant system under equivariant perturbations. In the last part of the paper we present an application of our general theory to show that a Z3 equivariant system can have 13 limit cycles.

  8. Cycle-to-cycle variability as an optimal behavioral strategy

    OpenAIRE

    Brezina, Vladimir; Proekt, Alex; Weiss, Klaudiusz R.

    2006-01-01

    Aplysia feeding behavior is highly variable from cycle to cycle. In some cycles, when the variability causes a mismatch between the animal's movements and the requirements of the feeding task, the variability makes the behavior unsuccessful. We propose that the behavior is variable nevertheless because the variability serves a higher-order functional purpose. When the animal is faced with a new and only imperfectly known feeding task in each cycle, the variability implements a trial-and-error...

  9. How well can business cycle accounting account for business cycles?

    OpenAIRE

    Otsu, Keisuke

    2012-01-01

    The business cycle accounting method introduced by Chari, Kehoe and McGrattan (2007) is a useful tool to decompose business cycle fluctuations into their contributing factors. However, the model estimated by the maximum likelihood method cannot replicate business cycle moments computed from data. Moment-based estimation might be an attractive alternative if the purpose of the research is to study business cycle properties such as volatility, persistence and cross-correlation of variables inst...

  10. Assistive Technology and Mathematics Education

    Science.gov (United States)

    Akpan, Joseph P.; Beard, Lawrence A.

    2014-01-01

    Educators and caregivers now have the opportunity to individualize and differentiate instructions with many technological devices never before available. Assistive Technology is being introduced in the classroom at all levels as a tool for teachers to help deliver instruction to all students. Assistive Technology is widely used to ensure…

  11. The Ethics of Assisted Suicide.

    Science.gov (United States)

    Callahan, Jay

    1994-01-01

    From social work perspective, considers ethics of assisted suicide. Discusses traditional social work value of client self-determination and identifies tensions in this ideal and conflicts with value of client well-being. Finds assisted suicide unethical, arguing that studies have shown judgment of most suicidal people to be impaired as result of…

  12. Environmentally assisted cracking in light water reactors

    Energy Technology Data Exchange (ETDEWEB)

    Chopra, O.K.; Chung, H.M.; Gruber, E.E. [and others

    1996-07-01

    This report summarizes work performed by Argonne National Laboratory on fatigue and environmentally assisted cracking (EAC) in light water reactors (LWRs) from April 1995 to December 1995. Topics that have been investigated include fatigue of carbon and low-alloy steel used in reactor piping and pressure vessels, EAC of Alloy 600 and 690, and irradiation-assisted stress corrosion cracking (IASCC) of Type 304 SS. Fatigue tests were conducted on ferritic steels in water that contained various concentrations of dissolved oxygen (DO) to determine whether a slow strain rate applied during different portions of a tensile-loading cycle are equally effective in decreasing fatigue life. Crack-growth-rate tests were conducted on compact-tension specimens from several heats of Alloys 600 and 690 in simulated LWR environments. Effects of fluoride-ion contamination on susceptibility to intergranular cracking of high- and commercial- purity Type 304 SS specimens from control-tensile tests at 288 degrees Centigrade. Microchemical changes in the specimens were studied by Auger electron spectroscopy and scanning electron microscopy to determine whether trace impurity elements may contribute to IASCC of these materials.

  13. The Flow Field Inside Ventricle Assist Device

    Science.gov (United States)

    Einav, Shmuel; Rosenfeld, Moshe; Avrahami, Idit

    2000-11-01

    The evaluation of innovative ventricle assist devices (VAD), is of major importance. A New Left Heart Assist Device, with an improved energy converter unit, has been investigated both numerically and experimentally. For this purpose, an experimental Continuous Digital Particle Imagining Velocimetry (CDPIV) is combined with a computational fluid dynamics (CFD) analysis. These tools complement each other to result into a comprehensive description of the complex 3D, viscous and time-dependent flow field inside the artificial ventricle. A 3D numerical model was constructed to simulate the VAD pump and a time-depended CFD analysis with moving walls was performed to predict the flow behaviour in the VAD during the cardiac cycle. A commercial finite element package was used to solve the Navier-Stokes equations (FIDAP, Fluent Inc., Evanston). In the experimental analysis, an optically clear elastic model of the VAD was placed inside a 2D CDPIV system. The CDPIV system is capable of sampling 15 velocity vector fields per second based on image-pairs intervals lower than 0.5 millisecond. Continuous sequences of experimental images, followed by their calculated velocity transient fields, are given as animated presentation of the distensible VAD. These results are used for validating the CFD simulations. Once validated, the CFD results provide a detailed 3D and time dependent description of the flow field, allowing the identification of stagnation or high shear stress regions.

  14. The future for physician assistants.

    Science.gov (United States)

    Cawley, J F; Ott, J E; DeAtley, C A

    1983-06-01

    Physician assistants were intended to be assistants to primary care physicians. Physicians in private practice have only moderately responded to the availability of these professionals. Cutbacks in the numbers of foreign medical graduates entering American schools for graduate medical education, concern for overcrowding in some specialties, and the economic and clinical capabilities of physician assistants have lead to new uses for these persons. Physician assistants are employed in surgery and surgical subspecialties; in practice settings in institutions such as medical, pediatric, and surgical house staff; and in geriatric facilities, occupational medicine clinics, emergency rooms, and prison health systems. The projected surplus of physicians by 1990 may affect the use of physician assistants by private physicians in primary care.

  15. Evaluation of HEXORR Tone Assistance Mode Against Spring Assistance.

    Science.gov (United States)

    Godfrey, Sasha Blue; Holley, Rahsaan J; Lum, Peter S

    2015-07-01

    Robots are a promising tool for rehabilitation, and research suggests combining assistance with subject participation to maintain motivation and engagement. In this study, we compare two different types of robotic assistance for hand rehabilitation: Tone, a novel method designed to directly compensate for the user's hypertonia, and Spring, a commonly used method simulating a spring-like force attracting the subject to the target position. Eight chronic stroke subjects played a Gate Game, where they guide a ball through a sweeping, on-screen gate. Each subject was exposed to 5 modes: unassisted, assisted by the Spring and Tone modes, and "delay" modes where the assistance was provided after a period without assistance. Compared to unassisted trials, subjects produced less positive work and more negative work with all types of assistance but also reached a larger ROM and scored higher on the game. Notably, subjects produced more positive work overall with Tone compared to Spring. Further, subjects produced positive work over a significantly shorter range with Spring compared to Unassisted, while there was no difference between Tone and Unassisted. While both modes were effective at enabling the training of a larger workspace, these results suggest Tone assistance maintains a greater level of subject engagement and participation, likely making it a useful tool for hand rehabilitation. PMID:25667355

  16. Risk of hypertensive disorders in pregnancies following assisted reproductive technology

    DEFF Research Database (Denmark)

    Opdahl, S; Henningsen, A A; Tiitinen, A;

    2015-01-01

    STUDY QUESTION: Is the risk of hypertensive disorders in pregnancies conceived following specific assisted reproductive technology (ART) procedures different from the risk in spontaneously conceived (SC) pregnancies? SUMMARY ANSWER: ART pregnancies had a higher risk of hypertensive disorders......, in particular following cryopreservation, with the highest risk seen in twin pregnancies following frozen-thawed cycles. WHAT IS KNOWN ALREADY: The risk of hypertensive disorders is higher in ART pregnancies than in SC pregnancies. The increased risk may be partly explained by multiple pregnancies...... twin pregnancies (46 674). We used logistic regression to estimate adjusted odds ratios and risk differences for hypertensive disorders in pregnancies following IVF, ICSI and fresh or frozen-thawed cycles. We also compared fresh and frozen-thawed cycles within mothers who had conceived following both...

  17. The software life cycle

    CERN Document Server

    Ince, Darrel

    1990-01-01

    The Software Life Cycle deals with the software lifecycle, that is, what exactly happens when software is developed. Topics covered include aspects of software engineering, structured techniques of software development, and software project management. The use of mathematics to design and develop computer systems is also discussed. This book is comprised of 20 chapters divided into four sections and begins with an overview of software engineering and software development, paying particular attention to the birth of software engineering and the introduction of formal methods of software develop

  18. Geomicrobiological cycling of antimony

    Science.gov (United States)

    Kulp, T. R.; Terry, L.; Dovick, M. A.; Braiotta, F.

    2013-12-01

    Microbiologically catalyzed oxidation and reduction of toxic metalloids (e.g., As, Se, and Te) generally proceeds much faster than corresponding abiotic reactions. These microbial transformations constitute biogeochemical cycles that control chemical speciation and environmental behavior of metalloids in aqueous environments. Particular progress has been made over the past two decades in documenting microbiological biotransformations of As, which include anaerobic respiratory reduction of As(V) to As(III), oxidation of As(III) to As(V) linked to chemoautotrophy or photoautotrophy, and cellular detoxification pathways. By contrast, microbial interactions with Sb, As's group 15 neighbor and a toxic element of emerging global concern, are poorly understood. Our work with sediment microcosms, enrichment cultures, and bacterial isolates suggests that prokaryotic metabolisms may be similarly important to environmental Sb cycling. Enrichment cultures and isolates from a Sb-contaminated mine site in Idaho exhibited Sb(V)-dependent heterotrophic respiration under anaerobic conditions and Sb(III)-dependent autotrophic growth in the presence of air. Live, anoxic cultures reduced 2 mM Sb(V) to Sb(III) within 5 d, while no activity occurred in killed controls. Sb(V) reduction was stimulated by lactate or acetate and was quantitatively coupled to the oxidation of lactate. The oxidation of radiolabeled 14C-acetate (monitored by GC-GPC) demonstrated Sb(V)-dependent oxidation to 14CO2, suggesting a dissimilatory process. Sb(V) dependent growth in cultures was demonstrated by direct counting. Microbiological reduction of Sb(V) also occurred in anerobic sediment microcosms from an uncontaminated suburban lake, but did not appear to be linked to growth and is interpreted as a mechanism of biological detoxification. Aerobic microcosms and cultures from the Idaho mine oxidized 2 mM Sb(III) to Sb(V) within 7 d and coupled this reaction to cell growth quantified by direct counting. An

  19. Robotically assisted gynaecological surgery.

    Science.gov (United States)

    Falcone, Tommaso; Steiner, Charles P

    2002-05-01

    Industry has used robots successfully for fine, delicate, repetitive tasks for decades. Recently, robots have been introduced into clinical medicine and specifically into the surgical suite. Voice algorithms have been developed that allow voice activation of some types of equipment in the operating room, such as the laparoscope or the light source. Advances in computer software have allowed a computer controller to translate a surgeon's movements from the handles located in a console to the robotic arms that hold the surgical instruments. This console is placed away from the surgical table. Clinical experience is limited and there are few published clinical trials. The initial trials have focused on laparoscopic microsuturing such as that performed during coronary bypass surgery or tubal anastomosis. Preliminary results have demonstrated that laparoscopic coronary bypass surgery with the internal mammary artery can be achieved. In gynaecological surgery, laparoscopic tubal reanastomosis can be performed using the same technique that has been used traditionally at laparotomy. Future clinical trials will assess whether other gynaecological procedures can be performed with robotic assistance. PMID:12082211

  20. Computer Assisted Audit Techniques

    Directory of Open Access Journals (Sweden)

    Eugenia Iancu

    2007-01-01

    Full Text Available From the modern point of view, audit takes intoaccount especially the information systems representingmainly the examination performed by a professional asregards the manner for developing an activity by means ofcomparing it to the quality criteria specific to this activity.Having as reference point this very general definition ofauditing, it must be emphasized that the best known segmentof auditing is the financial audit that had a parallel evolutionto the accountancy one.The present day phase of developing the financial audithas as main trait the internationalization of the accountantprofessional. World wide there are multinational companiesthat offer services in the financial auditing, taxing andconsultancy domain. The auditors, natural persons and auditcompanies, take part at the works of the national andinternational authorities for setting out norms in theaccountancy and auditing domain.The computer assisted audit techniques can be classified inseveral manners according to the approaches used by theauditor. The most well-known techniques are comprised inthe following categories: testing data techniques, integratedtest, parallel simulation, revising the program logics,programs developed upon request, generalized auditsoftware, utility programs and expert systems.

  1. Thermally assisted MRAM

    Energy Technology Data Exchange (ETDEWEB)

    Prejbeanu, I L [Spintec, URA 2512 CEA/CNRS, CEA-Grenoble, 17 r. des Martyrs, 38054 Grenoble Cedex 9 (France); Kerekes, M [Spintec, URA 2512 CEA/CNRS, CEA-Grenoble, 17 r. des Martyrs, 38054 Grenoble Cedex 9 (France); Sousa, R C [Spintec, URA 2512 CEA/CNRS, CEA-Grenoble, 17 r. des Martyrs, 38054 Grenoble Cedex 9 (France); Sibuet, H [LIMN, DRT/Leti/DIHS, CEA-Grenoble, 17 r. des Martyrs, 38054 Grenoble Cedex 9 (France); Redon, O [LIMN, DRT/Leti/DIHS, CEA-Grenoble, 17 r. des Martyrs, 38054 Grenoble Cedex 9 (France); Dieny, B [Spintec, URA 2512 CEA/CNRS, CEA-Grenoble, 17 r. des Martyrs, 38054 Grenoble Cedex 9 (France); Nozieres, J P [Crocus Technology, 5 Place Robert Schumann, BP 1510, 38025 Grenoble Cedex 1 (France)

    2007-04-23

    Magnetic random access memories (MRAMs) are a new non-volatile memory technology trying establish itself as a mainstream technology. MRAM cell operation using a thermally assisted writing scheme (TA-MRAM) is described in this review as well as its main design challenges. This approach is compared to conventional MRAM, highlighting the improvements in write selectivity, power consumption and thermal stability. The TA-MRAM writing was tested and validated in the dynamic regime down to 500 ps write pulses. The heating process was investigated for the influence of the voltage pulse width, junction area and lead volume looking at the required write power density. The possibilities to control and reduce the write power density are described. The most promising solution to optimize the heating process and reduce the power consumption is to insert two thermal barrier layers at both ends of the MTJ layer stack, between the junction and the electrical leads, using low thermal conductivity materials. This minimizes the heating losses and improves the heating efficiency.

  2. Revenue cycle management: part I.

    Science.gov (United States)

    Crew, Matt

    2006-01-01

    The revenue cycle starts long before a patient is seen and continues until a claim is completely resolved. Each step in the revenue cycle must be clearly defined and easy to follow. Use of various tools such as templates, forms, reports, spreadsheets, and components of your practice management system will help to provide the consistency you need for profitable revenue cycle management.

  3. Sometimes "Newton's Method" Always "Cycles"

    Science.gov (United States)

    Latulippe, Joe; Switkes, Jennifer

    2012-01-01

    Are there functions for which Newton's method cycles for all non-trivial initial guesses? We construct and solve a differential equation whose solution is a real-valued function that two-cycles under Newton iteration. Higher-order cycles of Newton's method iterates are explored in the complex plane using complex powers of "x." We find a class of…

  4. Paths and cycles of hypergraphs

    Institute of Scientific and Technical Information of China (English)

    王建方; Tony; T.Lee

    1999-01-01

    Hypergraphs are the most general structures in discrete mathematics. Acyclic hypergraphs have been proved very useful in relational databases. New systems of axioms for paths, connectivity and cycles of hypergraphs are constructed. The systems suit the structure properties of relational databases. The concepts of pseudo cycles and essential cycles of hypergraphs are introduced. They are relative to each other. Whether a family of cycles of a hypergraph is dependent or independent is defined. An enumeration formula for the maximum number of independent essential cycles of a hypergraph is given.

  5. Part 5. Fuel cycle options

    International Nuclear Information System (INIS)

    The results of the FBR fuel cycle study that supported US contributions to the INFCE are presented. Fuel cycle technology is reviewed from both generic and historical standpoints. Technology requirements are developed within the framework of three deployment scenarios: the reference international, the secured area, and the integral cycle. Reprocessing, fabrication, waste handling, transportation, and safeguards are discussed for each deployment scenario. Fuel cycle modifications designed to increase proliferation defenses are described and assessed for effectiveness and technology feasibility. The present status of fuel cycle technology is reviewed and key issues that require resolution are identified

  6. 基于现代学徒制的幼师教育实习模式构建——以M幼儿师范学校幼教联盟为例%The Construction of Preschool Teacher Education Practice Mode Based on the Modern Apprenticeship

    Institute of Scientific and Technical Information of China (English)

    朱广兵

    2015-01-01

    教育实习是幼儿师范教育过程中重要教育教学环节,也是幼儿师范教学计划组成部分之一. M幼儿师范学校幼教联盟是基于现代学徒制理论建立的幼师教育实习模式,在幼儿师范学校与周边幼儿园之间搭建优势互补、互惠共赢的合作平台,是新形势下打破行政壁垒,强化校、园联系,实现资源共享的创新之举. 联盟单位之间通过教学业务合作、师资联合培养、幼教课题研究等方式加强交流与合作,促进师资水平、保教质量、科研水平和办学效益的共同提高.%Education practice is the important education teaching link in the process of preschool teacher education. It is one part of preschool teachers' teaching plan too. Modern apprenticeship is a kind of traditional apprenticeship . "Quality" of the "efficiency" and school education system advantages was formed by a form of vocational education. It is beneficial to the development of the technology talents. M Infant normal school's preschool education alliance is based on the theory of modern apprenticeship of preschool teacher education practice mode. It's between M infant normal school and kindergarten surrounding structures, complementary advantages, Mutual benefit and win -win cooperation platform, It is under the new situation to break the administrative barriers, strengthening school, park and realize the resources sharing innovation, through the teaching business cooperation between allied units

  7. Development of mechanical brake assist; Mechanical brake assist no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Konishi, M.; Shingyoji, S.; Nakamura, I.; Tagawa, T.; Saito, Y.; Ishihara, T.; Kobayashi, S.; Yoshida, M. [Nissan Motor Co. Ltd., Tokyo (Japan)

    1997-10-01

    We have recognized that there are drivers who cannot apply strong brake pedal force , in spite of the necessity of hard braking in emergencies. We have developed a `mechanical brake assist system` which assists drivers appropriately, according to the drivers` characteristics based on studying the characteristic`s of conditions of drivers applying the brake pedal force in emergency conditions. 2 refs., 7 figs., 1 tab.

  8. 英国现代学徒制与我国工学结合的比较研究——基于政策分析的视角%A Comparative Study between Modern Apprenticeship in the UK and Integrating Working with Learning in China -- Based on a View Of Policy Analysis

    Institute of Scientific and Technical Information of China (English)

    王喜雪

    2012-01-01

    英国现代学徒制和我国工学结合是当今世界现代学徒制度的两种不同实践模式,两者同属于政府为推进职业教育发展而实施的国家政策。从政策分析的视角考察,尽管二者的政策目的相同,但是英国现代学徒制比我国工学结合更贴近行业企业,且具备更明确的政策实施要求和更广泛的政策适用范围,其实施效果更加明晰可测。在借鉴他国经验以及结合本国国情基础之上,国家应采取以下措施以促进我国工学结合发展:对工学结合进行明确定位;为利益相关方提供合作路径;完善国家职业资格相关制度;建立过程监督体系等。%The modem apprenticeship in the UK and integrating working with learning in China are the different practical forms of apprenticeships in the modem economy, and both of them are the policies implemented by governments for the development of vocational education. Observed and studied from the policy analysis view,the two different policies have the same policy aim,but modem apprenticeship in the UK is closer to the enterprises,has the more definite claims and the wider scope of application than integrating working with learning in China, and the implementing effects of modem apprenticeship are more clear and measurable than integrating working with learning. Based on the successful experiences of other countries and our reality,the government should promote the development of integrating working with learning via the measure as follows:such as making authentic interpretation of integrating working with learning, providing the way for the cooperation of each related groups, improving the institutions of vocational qualifications in China,and establishing the system of supervising in the process.

  9. The Cognitive Onboard Operator Assistant Architecture Project

    Data.gov (United States)

    National Aeronautics and Space Administration — We propose a cognitively inspired architecture for deploying an automated intelligent onboard operator assistant. This assistant facilitates the onboard control...

  10. Daily Public Assistance Grants Award Activity

    Data.gov (United States)

    Department of Homeland Security — Daily activity of Public Assistance Grant Awards, including FEMA Region, State, Disaster Declaration Number, Event description, Mission Assigned agency, Assistance...

  11. 38 CFR 21.3020 - Educational assistance.

    Science.gov (United States)

    2010-07-01

    ... (CONTINUED) VOCATIONAL REHABILITATION AND EDUCATION Survivors' and Dependents' Educational Assistance Under... definition contained in § 21.3021. (b) 45 months limitation. Educational assistance may not exceed a...

  12. Krebs Cycle Wordsearch

    Science.gov (United States)

    Helser, Terry L.

    2001-04-01

    This puzzle embeds 46 names, terms, abbreviations, and acronyms about the citric acid (Krebs) cycle in a 14- x 17-letter matrix. A descriptive narrative beside it describes important features of the pathway. All the terms a student needs to find are embedded there with the first letter followed by underlined blanks to be completed. Therefore, the students usually must find the terms to know how to spell them, correctly fill in the blanks in the narrative with the terms, and then find and highlight the terms in the letter matrix. When all are found, the 24 unused letters complete a sentence that describes a major feature of this central pathway. The puzzle may be used as homework, an extra-credit project, or a group project in the classroom in any course where basic metabolism is learned. It disguises as fun the hard work needed to learn the names of the intermediates, enzymes, and cofactors.

  13. Open cycle thermoacoustics

    Energy Technology Data Exchange (ETDEWEB)

    Reid, Robert Stowers

    2000-01-01

    A new type of thermodynamic device combining a thermodynamic cycle with the externally applied steady flow of an open thermodynamic process is discussed and experimentally demonstrated. The gas flowing through this device can be heated or cooled in a series of semi-open cyclic steps. The combination of open and cyclic flows makes possible the elimination of some or all of the heat exchangers (with their associated irreversibility). Heat is directly exchanged with the process fluid as it flows through the device when operating as a refrigerator, producing a staging effect that tends to increase First Law thermodynamic efficiency. An open-flow thermoacoustic refrigerator was built to demonstrate this concept. Several approaches are presented that describe the physical characteristics of this device. Tests have been conducted on this refrigerator with good agreement with a proposed theory.

  14. HTGR fuel cycle

    International Nuclear Information System (INIS)

    In the spring of 1987, the HTGR fuel cycle project has been existing for ten years, and for this reason a status seminar has been held on May 12, 1987 in the Juelich Nuclear Research Center, that gathered the participants in this project for a discussion on the state of the art in HTGR fuel element development, graphite development, and waste management. The papers present an overview of work performed so far and an outlook on future tasks and goals, and on taking stock one can say that the project has been very successful so far: The HTGR fuel element now available meets highest requirements and forms the basis of today's HTGR safety philosophy; research work on graphite behaviour in a high-temperature reactor has led to complete knowledge of the temperature or neutron-induced effects, and with the concept of direct ultimate waste disposal, the waste management problem has found a feasible solution. (orig./GL)

  15. The supercontinent cycle

    Energy Technology Data Exchange (ETDEWEB)

    Nance, R.D.; Worsley, T.R.; Moody, J.B.

    1988-07-01

    This paper discusses a new theory of plate tectonics which proposes that Pangaea was only the most recent in a series of supercontinents that have been breaking up and reassembling every 500 million years or so. The cycle, driven by heat percolating up from the mantle, splits continents and drives interrelated processes that shape the earth's geology and climate and play a role in biological evolution. The framework of the supercontinent theory makes it possible to understand the timing of changes in sea level that have taken place in the past 570 million years, and also helps to explain periods of intense mountain building, episodes of glaciation, and changes in the nature of life on the earth.

  16. Caracterização do uso do cicloergômetro para auxiliar no atendimento fisioterapêutico em pacientes críticos Characterization of the use of a cycle ergometer to assist in the physical therapy treatment of critically ill patients

    Directory of Open Access Journals (Sweden)

    Ruy Camargo Pires-Neto

    2013-03-01

    Full Text Available OBJETIVO: Analisar as alterações cardiorrespiratórias de pacientes durante o exercício ativo com um cicloergômetro e verificar a aceitação dos pacientes para realizar esse tipo de atividade. MÉTODOS: Foi realizada uma única intervenção de exercício ativo de membros inferiores no cicloergômetro (sem carga durante 5 minutos. As variáveis frequência cardíaca, pressão arterial, frequência respiratória, saturação periférica de oxigênio e escala de dispneia de Borg foram avaliadas em três momentos: antes, durante e imediatamente após o exercício. Ao final, o paciente respondia um questionário avaliando sua satisfação em relação a esse tipo de atividade. RESULTADOS: Participaram do estudo 38 pacientes (65% masculino com 48±16 anos e SOFA=2 (0-5. Durante o exercício, 55% estavam em ar ambiente e 16% utilizaram algum tipo de suporte ventilatório. Comparando-se os valores iniciais e finais das variáveis analisadas, verificou-se um aumento apenas nas variáveis frequência cardíaca (92±17 e 95±18; pOBJECTIVE: The objective of this study was to use a cycle ergometer to assess cardiorespiratory changes during active exercise and to verify patients' satisfaction with this type of activity. METHODS: A single intervention involving active lower limb exercise was performed with a cycle ergometer (without load for 5 minutes. The following variables were measured before, during and immediately after exercise: heart rate, blood pressure, respiratory rate, peripheral oxygen saturation and the Borg dyspnea scale score. Following the exercise, the patients answered a questionnaire to evaluate their satisfaction with this type of activity. RESULTS: A total of 38 patients (65% male with a mean age of 48 ± 16 years old participated in the study. Enrolled patients presented a sequential organ failure assessment (SOFA score of 2 (0 - 5 scale. During the exercise, 16% of the patients used ventilation support and 55% of them were

  17. The uranium cycle

    International Nuclear Information System (INIS)

    In identifying uranium provinces, and, more importantly, mineralized zones within these provinces, it is of paramount importance to attempt to trace the geochemical behaviour of an element through all stages of Earth's evolution. Aspects that need to be addressed in this regard include solar abundance levels and fractionation processes during accretion, changing patterns of crustal evolution, effects of an evolving atmosphere, and the weathering cycle. Abundance patterns and partition coefficients of some of the siderophile elements in mantle rocks lend support to a multistage accretionary process. Lack of a terrestrial record in the first 500 Ma necessitates that lunar models be invoked, which suggests that early fractionation of a mafic/ultramafic magma resulted in an anorthositic crust. Fractionation of the mantle and transfer of materials to the upper levels must be central to any model invoked for development of the crust. Given high heat flow conditions in the early Archaean it would seem inescapable that the process of sea floor spreading and plate tectonics was an ongoing process. If the plate tectonic model is taken back to 3500 Ma, and assuming current speading rates, then about half of the mantle has passed through the irreversible differentiation cycle. Arguments in support of recycled material must be balanced against mantle metasomatism effects. With the associated advent of partial melting of the mantle material a partitioning of minor and trace elements into the melt fraction would take place. The early primitive mafic and ultramafic komatiites exemplify this feature by concentrating U and Th by a factor of 5 compared to chondritic abundances. It is of tantamount importance to understand the generation of the magmas in order to predict which are the 'fertile' bodies in terms of radioelement concentrations. In that the granitoid magmas image their source compositions, the association of high radioelements will primarily be source-dependent. Uranium

  18. Robot-Assisted Gynecologic Surgery

    Science.gov (United States)

    ... guys tonight. We’re going to be talking robotic-assisted gynecologic surgery, and I can tell you, ... and it shows us how we start a robotic case really like standard laparoscopy, and there’s an ...

  19. Robot-Assisted Gynecologic Surgery

    Medline Plus

    Full Text Available Halifax Health Presents: Roboti-Assisted Gynecologic Surgery Halifax Health Florida September 27, 2011 Hello, and welcome to another live ... you by the fine folks here at Halifax Health. Broadcasting live from sunny Daytona Beach, Florida, and ...

  20. Multifamily Assistance Section 8 Contracts

    Data.gov (United States)

    Department of Housing and Urban Development — he information regarding the Multifamily Assistance and Section 8 contracts, and properties is being furnished for the convenience of interested parties. The...

  1. FEMA Housing Assistance Renters - API

    Data.gov (United States)

    Department of Homeland Security — This dataset lists aggregated, non-PII dataset of FEMA Housing Assistance Program for House Renters The data was generated by FEMA's ECIM (Enterprise Coordination...

  2. Temporary Assistance for Needy Families

    Data.gov (United States)

    U.S. Department of Health & Human Services — This is the FY2009 Work Participation Rate data for the Temporary Assistance for Needy Families (TANF) Program. It provides state-by-state data on Work...

  3. Radiological Assistance Program (RAP) Regions

    Data.gov (United States)

    Department of Homeland Security — The U.S. Department of Energy (DOE) created the Radiological Assistance Program (RAP) in the 1950s to make DOE resources and expertise available to organizations...

  4. Fault Management Assistant (FMA) Project

    Data.gov (United States)

    National Aeronautics and Space Administration — S&K Aerospace (SKA) proposes to develop the Fault Management Assistant (FMA) to aid project managers and fault management engineers in developing better and...

  5. FEMA Housing Assistance Owners - API

    Data.gov (United States)

    Department of Homeland Security — This dataset lists aggregated, non-PII dataset of FEMA Housing Assistance Program for House Owners The data was generated by FEMA's ECIM (Enterprise Coordination...

  6. Robot-Assisted Gynecologic Surgery

    Medline Plus

    Full Text Available ... Broadcasting live from sunny Daytona Beach, Florida, and I am your host, Dr. Scott Klioze. We’ve ... to be talking robotic-assisted gynecologic surgery, and I can tell you, we have got a lot ...

  7. S-Chip Technical Assistance

    Data.gov (United States)

    U.S. Department of Health & Human Services — The page will provide access to reports and other published products designed to assist states with complicated S-Chip technical issues. The reports and products...

  8. Laboratory aspects of assisted reproduction.

    OpenAIRE

    Yeung, WS; Ng, EH

    2000-01-01

    A number of advances have been made concerning the laboratory aspects of assisted reproduction. Intracytoplasmic sperm injection has revolutionised the treatment of male infertility. With the development of better embryo culture media, blastocyst transfer is now possible and is likely to reduce high-order multiple pregnancy in assisted reproduction treatment. Pre-implantation genetic diagnosis has become an alternative to prenatal diagnosis. The recent use of molecular biology techniques to d...

  9. FOOD ASSISTANCE LANDSCAPE MARCH 2006

    OpenAIRE

    Anonymous

    2006-01-01

    One in five Americans participates in at least one of USDA's food and nutrition assistance programs during the year. In fiscal 2005, an estimated 55 percent of USDA's budget supported the programs that provide children and low-income people with access to food, a healthful diet, and nutrition education. The Economic Research Service (ERS) is responsible for conducting studies and evaluations of USDA's food assistance programs. This report uses preliminary data from USDA's Food and Nutrition S...

  10. Measurement of single cycle and sub-cycle pulse duration

    Institute of Scientific and Technical Information of China (English)

    Zhenglie Gong(龚正烈); Wenzhuo Ge(葛文卓); Guizhong Zhang(张贵忠); Wanghua Xiang(向望华)

    2004-01-01

    This paper suggests that the linear interferometric correlation (LFC) can be used to measure pulse duration of a few cycles, single cycle or even sub-cycle light pulse. The relations between pulsewidth and LFC curve are derived for Gaussian- and hyperbolic secant-shaped pules. This new method abandons focusing,frequency doubling and filtering in the traditional second order correlation method, meanwhile the signalto-noise ratio (SNR) is improved.

  11. Overview of cycling injuries: results of a cycling club survey.

    Science.gov (United States)

    Decalzi, Javier F; Narvy, Steven J; Vangsness, C Thomas

    2013-04-01

    Participation in competitive bicycling has increased substantially over the past decade, and bicycle injuries have increased accordingly. Cycling has been reported in several studies to have higher rates of injury than other sports and recreational activities; accordingly, riders must be cognizant of the potential for injury and protect themselves appropriately. The purpose of the current study was to survey an established competitive Los Angeles-based road cycling team to determine the epidemiology of and circumstances for traumatic cycling injuries.

  12. Pregnancy Predictors after Intrauterine Insemination: Analysis of 3012 Cycles in 1201 Couples

    OpenAIRE

    Soria, Macizo; Pradillo, Gálvez; García, Jorquera; Ramón, Peinado; Castillo, Alvarez; Jordana, Canteras; Paricio, Parrilla

    2012-01-01

    Background Intrauterine insemination (IUI) is the first therapeutic step in assisted reproductive techniques and many factors, including male and female infertility and technique-dependent factors, have been reported to influence pregnancy rates after IUI. Methods We carried out this retrospective study on 1201 couples undergoing 3012 intrauterine insemination cycles during 2002 to 2009. Pregnancy rate per cycle in terms of female infertility factors, male infertility factors, and technique-d...

  13. The role of Life Cycle Assessment in identifying and reducing environmental impacts of CCS

    OpenAIRE

    Sathre, Roger

    2011-01-01

    Life Cycle Assessment (LCA) should be used to assist carbon capture and sequestration (CCS) planners to reduce greenhouse gas (GHG) emissions and avoid unintended environmental trade-offs. LCA is an analytical framework for determining environmental impacts resulting from processes, products, and services. All life cycle stages are evaluated including raw material sourcing, processing, operation, maintenance, and component end-of-life, as well as intermediate stages such as transportation. I...

  14. Life Cycle Management at Brødrene Hartmann A/S - strategy,- organisation and implementation

    DEFF Research Database (Denmark)

    Pedersen, Claus Stig; Alting, Leo; Mortensen, Anna Lise

    1997-01-01

    the total environmental impacts and resource consumptions throughout the full life cycle of the products, with respect to economy and quality.The concept of life cycle management is implemented in Hartmanns environmental strategy and an organisation to take care of the implementation in the every day...... decisionmaking is under development.The implementation of life cycle management in Hartmann is organised with respect to the divisional areas: strategic management, product development, purchase, production, sale and distribution. The implementation of life cycle managment is assisted by tools to support...... decision making. The tools are developed in coorporation with the Department of Manufacturing Engineering at the Technical University of Denmark.This paper presents- The Hartmann environmental strategy, based on the life cycle concept- Experiences and results from developing a life cycle orientated...

  15. Removing Cycles in Esterel Programs

    Directory of Open Access Journals (Sweden)

    Reinhard von Hanxleden

    2007-05-01

    Full Text Available Esterel belongs to the family of synchronous programming languages, which are affected by cyclic signal dependencies. This prohibits a static scheduling, limiting the choice of available compilation techniques for programs with such cycles. This work proposes an algorithm that, given a constructive synchronous Esterel program, performs a semantics-preserving source code level transformation that removes cyclic signal dependencies. The transformation is divided into two parts: detection of cycles and iterative resolution of these cycles. It is based on the replacement of cycle signals by a signal expression involving no other cycle signals, thereby breaking the cycle. This transformation of cyclic Esterel programs enables the use of efficient compilation techniques, which are only available for acyclic programs. Furthermore, experiments indicate that the code transformation can even improve code quality produced by compilers that can already handle cyclic programs.

  16. Reproductive cycles of buffalo.

    Science.gov (United States)

    Perera, B M A O

    2011-04-01

    The domestic water buffalo (Bubalus bubalis) has an important role in the agricultural economy of many developing countries in Asia, providing milk, meat and draught power. It is also used in some Mediterranean and Latin American countries as a source of milk and meat for specialized markets. Although the buffalo can adapt to harsh environments and live on poor quality forage, reproductive efficiency is often compromised by such conditions, resulting in late sexual maturity, long postpartum anoestrus, poor expression of oestrus, poor conception rates and long calving intervals. The age at puberty is influenced by genotype, nutrition, management and climate, and under favourable conditions occurs at 15-18 months in river buffalo and 21-24 months in swamp buffalo. The ovaries are smaller than in cattle and contain fewer primordial follicles. Buffalo are capable of breeding throughout the year, but in many countries a seasonal pattern of ovarian activity occurs. This is attributed in tropical regions to changes in rainfall resulting in feed availability or to temperature stress resulting in elevated prolactin secretion, and in temperate regions to changes in photoperiod and melatonin secretion. The mean length of the oestrous cycle is 21 days, with greater variation than observed in cattle. The signs of oestrus in buffalo are less overt than in cattle and homosexual behaviour between females is rare. The duration of oestrus is 5-27 h, with ovulation occurring 24-48 h (mean 34 h) after the onset of oestrus. The hormonal changes occurring in peripheral circulation are similar to those observed in cattle, but the peak concentrations of progesterone and oestradiol-17β are less. The number of follicular waves during an oestrous cycle varies from one to three and influences the length of the luteal phase as well as the inter-ovulatory interval. Under optimal conditions, dairy types managed with limited or no suckling resume oestrus cyclicity by 30-60 days after calving

  17. Entrepreneurship and the business cycle

    OpenAIRE

    Thurik, Roy

    2014-01-01

    Entrepreneurship has a cyclical component, raising two questions. Is the entrepreneurship cycle related to the business cycle? And is there causality? A two-way relationship between entrepreneurship and the business cycle would be in line with the two faces of entrepreneurs: as agents of change creating upswings (opportunity entrepreneurship) and as rational actors escaping unemployment by setting up a business (necessity entrepreneurship). Nascent entrepreneurship can indeed be precyclical, ...

  18. Rethinking the Ancient Sulfur Cycle

    Science.gov (United States)

    Fike, David A.; Bradley, Alexander S.; Rose, Catherine V.

    2015-05-01

    The sulfur biogeochemical cycle integrates the metabolic activity of multiple microbial pathways (e.g., sulfate reduction, disproportionation, and sulfide oxidation) along with abiotic reactions and geological processes that cycle sulfur through various reservoirs. The sulfur cycle impacts the global carbon cycle and climate primarily through the remineralization of organic carbon. Over geological timescales, cycling of sulfur is closely tied to the redox state of Earth's exosphere through the burial of oxidized (sulfate) and reduced (sulfide) sulfur species in marine sediments. Biological sulfur cycling is associated with isotopic fractionations that can be used to trace the fluxes through various metabolic pathways. The resulting isotopic data provide insights into sulfur cycling in both modern and ancient environments via isotopic signatures in sedimentary sulfate and sulfide phases. Here, we review the deep-time δ34S record of marine sulfates and sulfides in light of recent advances in understanding how isotopic signatures are generated by microbial activity, how these signatures are encoded in marine sediments, and how they may be altered following deposition. The resulting picture shows a sulfur cycle intimately coupled to ambient carbon cycling, where sulfur isotopic records preserved in sedimentary rocks are critically dependent on sedimentological and geochemical conditions (e.g., iron availability) during deposition.

  19. Regenerative superheated steam turbine cycles

    Science.gov (United States)

    Fuller, L. C.; Stovall, T. K.

    1980-01-01

    PRESTO computer program was developed to analyze performance of wide range of steam turbine cycles with special attention given to regenerative superheated steam turbine cycles. It can be used to model standard turbine cycles, including such features as process steam extraction, induction and feedwater heating by external sources, peaking, and high back pressure. Expansion line efficiencies, exhaust loss, leakages, mechanical losses, and generator losses are used to calculate cycle heat rate and generator output. Program provides power engineer with flexible aid for design and analysis of steam turbine systems.

  20. Organic rankine cycle fluid

    Science.gov (United States)

    Brasz, Joost J.; Jonsson, Ulf J.

    2006-09-05

    A method of operating an organic rankine cycle system wherein a liquid refrigerant is circulated to an evaporator where heat is introduced to the refrigerant to convert it to vapor. The vapor is then passed through a turbine, with the resulting cooled vapor then passing through a condenser for condensing the vapor to a liquid. The refrigerant is one of CF.sub.3CF.sub.2C(O)CF(CF.sub.3).sub.2, (CF.sub.3).sub.2 CFC(O)CF(CF.sub.3).sub.2, CF.sub.3(CF.sub.2).sub.2C(O)CF(CF.sub.3).sub.2, CF.sub.3(CF.sub.2).sub.3C(O)CF(CG.sub.3).sub.2, CF.sub.3(CF.sub.2).sub.5C(O)CF.sub.3, CF.sub.3CF.sub.2C(O)CF.sub.2CF.sub.2CF.sub.3, CF.sub.3C(O)CF(CF.sub.3).sub.2.

  1. The earth's hydrological cycle

    CERN Document Server

    Bonnet, R-M; Calisto, M; Destouni, G; Gurney, R; Johannessen, J; Kerr, Y; Lahoz, WA; Rast, M

    2014-01-01

    This book gives a comprehensive presentation of our present understanding of the Earth's Hydrological cycle and the problems, consequences and impacts that go with this topic. Water is a central component in the Earth's system. It is indispensable for life on Earth in its present form and influences virtually every aspect of our planet's life support system. On relatively short time scales, atmospheric water vapor interacts with the atmospheric circulation and is crucial in forming the Earth's climate zones. Water vapor is the most powerful of the greenhouse gases and serves to enhance the tropospheric temperature. The dominant part of available water on Earth resides in the oceans. Parts are locked up in the land ice on Greenland and Antarctica and a smaller part is estimated to exist as groundwater. If all the ice over the land and all the glaciers were to melt, the sea level would rise by some 80 m. In comparison, the total amount of water vapor in the atmosphere is small; it amounts to ~ 25 kg/m2, or the ...

  2. Biomass Gasification Combined Cycle

    Energy Technology Data Exchange (ETDEWEB)

    Judith A. Kieffer

    2000-07-01

    Gasification combined cycle continues to represent an important defining technology area for the forest products industry. The ''Forest Products Gasification Initiative'', organized under the Industry's Agenda 2020 technology vision and supported by the DOE ''Industries of the Future'' program, is well positioned to guide these technologies to commercial success within a five-to ten-year timeframe given supportive federal budgets and public policy. Commercial success will result in significant environmental and renewable energy goals that are shared by the Industry and the Nation. The Battelle/FERCO LIVG technology, which is the technology of choice for the application reported here, remains of high interest due to characteristics that make it well suited for integration with the infrastructure of a pulp production facility. The capital cost, operating economics and long-term demonstration of this technology area key input to future economically sustainable projects and must be verified by the 200 BDT/day demonstration facility currently operating in Burlington, Vermont. The New Bern application that was the initial objective of this project is not currently economically viable and will not be implemented at this time due to several changes at and around the mill which have occurred since the inception of the project in 1995. The analysis shows that for this technology, and likely other gasification technologies as well, the first few installations will require unique circumstances, or supportive public policies, or both to attract host sites and investors.

  3. The closed fuel cycle

    International Nuclear Information System (INIS)

    Available in abstract form only. Full text of publication follows: The fast growth of the world's economy coupled with the need for optimizing use of natural resources, for energy security and for climate change mitigation make energy supply one of the 21. century most daring challenges. The high reliability and efficiency of nuclear energy, its competitiveness in an energy market undergoing a new oil shock are as many factors in favor of the 'renaissance' of this greenhouse gas free energy. Over 160,000 tHM of LWR1 and AGR2 Used Nuclear Fuel (UNF) have already been unloaded from the reactor cores corresponding to 7,000 tons discharged per year worldwide. By 2030, this amount could exceed 400,000 tHM and annual unloading 14,000 tHM/year. AREVA believes that closing the nuclear fuel cycle through the treatment and recycling of Used Nuclear Fuel sustains the worldwide nuclear power expansion. It is an economically sound and environmentally responsible choice, based on the preservation of natural resources through the recycling of used fuel. It furthermore provides a safe and secure management of wastes while significantly minimizing the burden left to future generations. (authors)

  4. 44 CFR 300.3 - Financial assistance.

    Science.gov (United States)

    2010-10-01

    ... 44 Emergency Management and Assistance 1 2010-10-01 2010-10-01 false Financial assistance. 300.3... HOMELAND SECURITY PREPAREDNESS DISASTER PREPAREDNESS ASSISTANCE § 300.3 Financial assistance. (a) The... responsibilities for IFG, crisis counseling, mass care or other functional responsibilities; (7) Training for...

  5. 44 CFR 206.161 - Relocation assistance.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF HOMELAND SECURITY DISASTER ASSISTANCE FEDERAL DISASTER ASSISTANCE Other Individual Assistance... eligible for any kind of replacement housing payment under the Uniform Relocation Assistance and Real... his being unable, because of a major disaster as determined by the President, to meet the...

  6. 34 CFR 300.105 - Assistive technology.

    Science.gov (United States)

    2010-07-01

    ... 34 Education 2 2010-07-01 2010-07-01 false Assistive technology. 300.105 Section 300.105 Education... DISABILITIES State Eligibility Other Fape Requirements § 300.105 Assistive technology. (a) Each public agency must ensure that assistive technology devices or assistive technology services, or both, as those...

  7. AssistMe robot, an assistance robotic platform

    Directory of Open Access Journals (Sweden)

    A. I. Alexan

    2012-06-01

    Full Text Available This paper presents the design and implementation of a full size assistance robot. Its main purpose it to assist a person and eventually avoid a life threatening situation. Its implementation revolves around a chipKIT Arduino board that interconnects a robotic base controller with a 7 inch TABLET PC and various sensors. Due to the Android and Arduino combination, the robot can interact with the person and provide an easy development platform for future improvement and feature adding. The TABLET PC is Webcam, WIFI and Bluetooth enabled, offering a versatile platform that is able to process data and in the same time provide the user a friendly interface.

  8. Economic viability of photovoltaic power for development assistance applications

    Science.gov (United States)

    Bifano, W. J.

    1982-01-01

    This paper briefly discusses the development assistance market and examines a number of specific photovoltaic (PV) development assistance field tests, including water pumping/grain grinding (Tangaye, Upper Volta), vaccine refrigerators slated for deployment in 24 countries, rural medical centers to be installed in Ecuador, Guyana, Kenya and Zimbabwe, and remote earth stations to be deployed in the near future. A comparison of levelized energy cost for diesel generators and PV systems covering a range of annual energy consumptions is also included. The analysis does not consider potential societal, environmental or political benefits associated with PV power. PV systems are shown to be competitive with diesel generators, based on life cycle cost considerations, assuming a system price of $20/W(peak), for applications having an annual energy demand of up to 6000 kilowatt-hours per year.

  9. Life Cycle of Stars

    Science.gov (United States)

    1999-01-01

    In this stunning picture of the giant galactic nebula NGC 3603, the crisp resolution of NASA's Hubble Space Telescope captures various stages of the life cycle of stars in one single view. To the upper left of center is the evolved blue supergiant called Sher 25. The star has a unique circumstellar ring of glowing gas that is a galactic twin to the famous ring around the supernova 1987A. The grayish-bluish color of the ring and the bipolar outflows (blobs to the upper right and lower left of the star) indicates the presence of processed (chemically enriched) material. Near the center of the view is a so-called starburst cluster dominated by young, hot Wolf-Rayet stars and early O-type stars. A torrent of ionizing radiation and fast stellar winds from these massive stars has blown a large cavity around the cluster. The most spectacular evidence for the interaction of ionizing radiation with cold molecular-hydrogen cloud material are the giant gaseous pillars to the right of the cluster. These pillars are sculptured by the same physical processes as the famous pillars Hubble photographed in the M16 Eagle Nebula. Dark clouds at the upper right are so-called Bok globules, which are probably in an earlier stage of star formation. To the lower left of the cluster are two compact, tadpole-shaped emission nebulae. Similar structures were found by Hubble in Orion, and have been interpreted as gas and dust evaporation from possibly protoplanetary disks (proplyds). This true-color picture was taken on March 5, 1999 with the Wide Field Planetary Camera 2.

  10. The LifeCycle model

    DEFF Research Database (Denmark)

    Krink, Thiemo; Løvbjerg, Morten

    2002-01-01

    Adaptive search heuristics are known to be valuable in approximating solutions to hard search problems. However, these techniques are problem dependent. Inspired by the idea of life cycle stages found in nature, we introduce a hybrid approach called the LifeCycle model that simultaneously applies...

  11. Nuclear fuel cycle information workshop

    International Nuclear Information System (INIS)

    This overview of the nuclear fuel cycle is divided into three parts. First, is a brief discussion of the basic principles of how nuclear reactors work; second, is a look at the major types of nuclear reactors being used and world-wide nuclear capacity; and third, is an overview of the nuclear fuel cycle and the present industrial capability in the US

  12. Economic growth and business cycles

    NARCIS (Netherlands)

    Canton, E.J.F.

    1997-01-01

    This thesis contains five essays on economic growth and business cycles. The main focus is on the interaction between economic growth and the cycle: is cyclical variability good or bad for the long-run rate of economic growth? The introduction aims to provide some empirical evidence for an investmen

  13. Variations on the Zilch Cycle

    Science.gov (United States)

    Binder, P.-M.; Tanoue, C. K. S.

    2013-01-01

    Thermo dynamic cycles in introductory physics courses are usually made up from a small number of permutations of isothermal, adiabatic, and constant-pressure and volume quasistatic strokes, with the working fluid usually being an ideal gas. Among them we find the Carnot, Stirling, Otto, Diesel, and Joule-Brayton cycles; in more advanced courses,…

  14. The water cycle for kids

    Science.gov (United States)

    Neno, Stephanie; Morgan, Jim; Zonolli, Gabriele; Perlman, Howard; Gonthier, Gerard

    2013-01-01

    The U.S. Geological Survey (USGS) and the Food and Agriculture Organization of the United Nations (FAO) have created a water-cycle diagram for use in elementary and middle schools. The diagram is available in many languages. This diagram is part of the USGS's Water Science School, in which the water cycle is described in detail.

  15. Activity Cycle of Solar Filaments

    Indian Academy of Sciences (India)

    K. J. Li; Q. X. Li; P. X. Gao; J. Mu; H. D. Chen; T. W. Su

    2007-06-01

    Long-term variation in the distribution of the solar filaments observed at the Observatorie de Paris, Section de Meudon from March 1919 to December 1989 is presented to compare with sunspot cycle and to study the periodicity in the filament activity, namely the periods of the coronal activity with the Morlet wavelet used. It is inferred that the activity cycle of solar filaments should have the same cycle length as sunspot cycle, but the cycle behavior of solar filaments is globally similar in profile with, but different in detail from, that of sunspot cycles. The amplitude of solar magnetic activity should not keep in phase with the complexity of solar magnetic activity. The possible periods in the filament activity are about 10.44 and 19.20 years. The wavelet local power spectrum of the period 10.44 years is statistically significant during the whole consideration time. The wavelet local power spectrum of the period 19.20 years is under the 95% confidence spectrum during the whole consideration time, but over the mean red-noise spectrum of = 0.72 before approximate Carrington rotation number 1500, and after that the filament activity does not statistically show the period. Wavelet reconstruction indicates that the early data of the filament archive (in and before cycle 16) are more noiseful than the later (in and after cycle 17).

  16. Estágio docente: formação profissional, preparação para o ensino ou docência em caráter precário? Teaching apprenticeship: professional formation, preparation for teaching, or temporary teaching?

    Directory of Open Access Journals (Sweden)

    Nathália de Fátima Joaquim

    2013-06-01

    Full Text Available Este trabalho foi construído a partir de um estudo desenvolvido com o intuito de avaliar a viabilidade do estágio docente como alternativa à prática do ensino. O alvo da pesquisa foram os pós-graduandos matriculados no estágio docente durante o ano de 2010 em uma universidade federal situada no Estado de Minas Gerias. O trabalho foi desenvolvido com base no método de estudo de casos em um programa de pós-graduação em Administração e a coleta de dados foi feita por meio de um único questionamento sobre o sentido atribuído pelos pós-graduandos ao desenvolvimento do estágio. Para que fosse possível interpretar os dados coletados, utilizou-se da análise de conteúdo. Por meio da percepção dos pós-graduandos, ressaltaram-se as contribuições, o sentido e as motivações de se realizar o estágio docente. Dessa forma, foi possível identificar a necessidade de se adequar a disciplina em termos práticos para que haja um maior envolvimento de todos os sujeitos e para que os resultados produzidos coletivamente sejam melhores e mais efetivos. Por fim, constatou-se que o processo de formação de professores nos programas de pós-graduação stricto sensu demanda uma (reintegração entre teoria e prática, de modo que o envolvimento com o estágio docente pode ser uma forma interessante de se promover a prática do ensino por parte dos pós-graduandos. Além disso, para aqueles que estão mais envolvidos com a pesquisa e com a leitura técnica de textos acadêmicos, a maior motivação apontada foi a redução da distância experimentada entre teoria e prática.This work was built from a study developed with the intent of assessing the feasibility of teaching apprenticeship as an alternative to the practice of teaching. The targets of the study were graduate students enrolled in teaching apprenticeship during 2010 at a federal University in the state of Minas Gerais. The work was developed based on the method of case studies as

  17. Prospects for Predicting Cycle 24

    Indian Academy of Sciences (India)

    Arnab Rai Choudhuri

    2008-03-01

    Although we have reliable data of solar polar fields only from the mid-1970s, it seems that the polar field at a minimum is well correlated with the next cycle, but the strength of the cycle is not correlated with the polar field produced at its end. We explain this by suggesting that the Babcock–Leighton mechanism of poloidal field generation from tilted active regions involves randomness, whereas the other aspects of the dynamo process are more ordered. To model actual cycles, we have to ‘correct’ our theoretical dynamo model by ‘feeding’ information about the polar field at the minima. Following this process, we find that our model fits the observed sunspot numbers of cycles 21–23 reasonably well and predicts that cycle 24 will be the weakest in a century.

  18. Ion beam assisted film growth

    CERN Document Server

    Itoh, T

    2012-01-01

    This volume provides up to date information on the experimental, theoretical and technological aspects of film growth assisted by ion beams.Ion beam assisted film growth is one of the most effective techniques in aiding the growth of high-quality thin solid films in a controlled way. Moreover, ion beams play a dominant role in the reduction of the growth temperature of thin films of high melting point materials. In this way, ion beams make a considerable and complex contribution to film growth. The volume will be essential reading for scientists, engineers and students working in thi

  19. Ethical issues in assisted reproduction.

    Science.gov (United States)

    Marshall, B M

    1992-07-01

    Since the birth of Louise Brown in 1978, no other area in clinical practice and medical research has held the public interest to the same extent as the assisted reproductive technologies. This has led to the formation of committees of enquiry, guidelines from professional bodies, the passage of legislation, and the formation of legislative bodies. The ethical issues which arise in the clinical practice of assisted reproduction, the donation of gametes and embryos, and their cryopreservation, surrogacy, and human embryo research are reviewed. PMID:1309130

  20. Genomic imprinting and assisted reproduction

    Directory of Open Access Journals (Sweden)

    Chaillet J Richard

    2004-10-01

    Full Text Available Abstract Imprinted genes exhibit a parent-of-origin specific pattern of expression. Such genes have been shown to be targets of molecular defects in particular genetic syndromes such as Beckwith-Wiedemann and Angelman syndromes. Recent reports have raised concern about the possibility that assisted reproduction techniques, such as in vitro fertilization or intracytoplasmic sperm injection, might cause genomic imprinting disorders. The number of reported cases of those disorders is still too small to draw firm conclusions and the safety of these widely used assisted reproduction techniques needs to be further evaluated.

  1. Limit cycles in quantum systems

    Energy Technology Data Exchange (ETDEWEB)

    Niemann, Patrick

    2015-04-27

    In this thesis we investigate Limit Cycles in Quantum Systems. Limit cycles are a renormalization group (RG) topology. When degrees of freedom are integrated out, the coupling constants flow periodically in a closed curve. The presence of limit cycles is restricted by the necessary condition of discrete scale invariance. A signature of discrete scale invariance and limit cycles is log-periodic behavior. The first part of this thesis is concerned with the study of limit cycles with the similarity renormalization group (SRG). Limit cycles are mainly investigated within conventional renormalization group frameworks, where degrees of freedom, which are larger than a given cutoff, are integrated out. In contrast, in the SRG potentials are unitarily transformed and thereby obtain a band-diagonal structure. The width of the band structure can be regarded as an effective cutoff. We investigate the appearance of limit cycles in the SRG evolution. Our aim is to extract signatures as well as the scaling factor of the limit cycle. We consider the 1/R{sup 2}-potential in a two-body system and a three-body system with large scattering lengths. Both systems display a limit cycle. Besides the frequently used kinetic energy generator we apply the exponential and the inverse generator. In the second part of this thesis, Limit Cycles at Finite Density, we examine the pole structure of the scattering amplitude for distinguishable fermions at zero temperature in the medium. Unequal masses and a filled Fermi sphere for each fermion species are considered. We focus on negative scattering lengths and the unitary limit. The properties of the three-body spectrum in the medium and implications for the phase structure of ultracold Fermi gases are discussed.

  2. Comparison of ISO 9000 and recent software life cycle standards to nuclear regulatory review guidance

    Energy Technology Data Exchange (ETDEWEB)

    Preckshot, G.G.; Scott, J.A.

    1998-01-20

    Lawrence Livermore National Laboratory is assisting the Nuclear Regulatory Commission with the assessment of certain quality and software life cycle standards to determine whether additional guidance for the U.S. nuclear regulatory context should be derived from the standards. This report describes the nature of the standards and compares the guidance of the standards to that of the recently updated Standard Review Plan.

  3. Aligning Web-Based Tools to the Research Process Cycle: A Resource for Collaborative Research Projects

    Science.gov (United States)

    Price, Geoffrey P.; Wright, Vivian H.

    2012-01-01

    Using John Creswell's Research Process Cycle as a framework, this article describes various web-based collaborative technologies useful for enhancing the organization and efficiency of educational research. Visualization tools (Cacoo) assist researchers in identifying a research problem. Resource storage tools (Delicious, Mendeley, EasyBib)…

  4. Small Engine Repair. Two-Stroke and Four-Stroke Cycle.

    Science.gov (United States)

    Hires, Bill; And Others

    This curriculum guide is intended to assist persons teaching a course in repairing two- and four-stroke cycle small engines. Addressed in the individual units of instruction are the following topics: safety, tools, fasteners, and measurement techniques; basic small engine theory (engine identification and inspection, basic engine principles and…

  5. Victim's Response Cycle: A Model for Understanding the Incestuous Victim-Offender Relationship.

    Science.gov (United States)

    Simon-Roper, Liza

    1996-01-01

    The victim-response cycle model focuses on specific aspects of the relationship that victims have with their offenders which contribute to the degree of trauma that victims experience. This model addresses attachment and learned coping responses to assist clinicians in treating symptomatic behavior. A case example demonstrating the model is…

  6. Life-Cycle Cost Study for a Low-Level Radioactive Waste Disposal Facility in Texas

    International Nuclear Information System (INIS)

    This report documents the life-cycle cost estimates for a proposed low-level radioactive waste disposal facility near Sierra Blanca, Texas. The work was requested by the Texas Low-Level Radioactive Waste Disposal Authority and performed by the National Low-Level Waste Management Program with the assistance of Rogers and Associates Engineering Corporation

  7. Comparison of ISO 9000 and recent software life cycle standards to nuclear regulatory review guidance

    International Nuclear Information System (INIS)

    Lawrence Livermore National Laboratory is assisting the Nuclear Regulatory Commission with the assessment of certain quality and software life cycle standards to determine whether additional guidance for the U.S. nuclear regulatory context should be derived from the standards. This report describes the nature of the standards and compares the guidance of the standards to that of the recently updated Standard Review Plan

  8. The endometrium in assisted reproductive technology: How thin is thin?

    Directory of Open Access Journals (Sweden)

    Nalini Mahajan

    2016-01-01

    Full Text Available A thin endometrium is encountered infrequently (2.4% in assisted reproductive technology cycles. When it does occur it is a cause of concern as it is associated with lower implantation rate and pregnancy rate. Though pregnancies have been reported at 4 and 5 mm it is apparent that an endometrial thickness <6 mm is associated with a trend toward lower probability of pregnancy. Hormone replacement therapy – frozen embryo transfer (FET cycles appear to give better results due to an improvement in endometrial receptivity (ER. The etiology of thin endometrium plays a significant part in its receptivity. A number of treatments have been tried to improve endometrial growth, but none has been validated so far. Confirming ER of a thin endometrium by an ER array test before FET offers reassurance.

  9. Robot-Assisted Gynecologic Surgery

    Medline Plus

    Full Text Available ... guys tonight. We’re going to be talking robotic-assisted gynecologic surgery, and I can tell you, ... and it shows us how we start a robotic case really like standard laparoscopy, and there’s an ...

  10. TADS: Technical Assistance Development System.

    Science.gov (United States)

    Epting, Rosemary, Ed.

    Described is the Technical Assistance Development System (TADS), a component of the Frank Porter Graham Child Development Center of the University of North Carolina at Chapel Hill which offers support services to preschool demonstration centers for handicapped children in the First Chance Network. Discussed are the four types of services offered:…

  11. NREL technical assistance to Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Lilienthal, P. [National Renewable Energy Lab., Golden, CO (United States)

    1997-12-01

    This paper describes assistance to Argentina from the National Renewable Energy Laboratory which has touched on four programs: tariff analysis for rural concessions programs; wind/diesel hybrid retrofits in Patagonia; small hybrid systems designs for rural schools; an assessment of wind resources. The paper expands briefly on the first two points.

  12. Designing Real Time Assistive Technologies

    DEFF Research Database (Denmark)

    Sonne, Tobias; Obel, Carsten; Grønbæk, Kaj

    2015-01-01

    activities and assists the child in maintaining attention. From a preliminary evaluation of CASTT with 20 children in several schools, we and found that: 1) it is possible to create a wearable sensor system for children with ADHD that monitors physical and physiological activities in real time; and that 2...

  13. Designing Real Time Assistive Technologies

    DEFF Research Database (Denmark)

    Sonne, Tobias; Obel, Carsten; Grønbæk, Kaj

    activities and assists the child in maintaining attention. From a preliminary evaluation of CASTT with 20 children in several schools, we and found that: 1) it is possible to create a wearable sensor system for children with ADHD that monitors physical and physiological activities in real time; and that 2...

  14. Laser assisted graffiti paints removing

    Science.gov (United States)

    Novikov, B. Y.; Chikalev, Y. V.; Shakhno, E. A.

    2011-02-01

    It's hard to imagine a modern city view without some drawings and inscriptions, usually called "graffiti". Traditional cleaning methods do not suit modern requirements. Investigation of possibilities of laser assisted paints removing is described in this article. The conditions for removing different paints from different surfaces were defined.

  15. Foreign Technical-Assistance Programs.

    Science.gov (United States)

    King, Maxwell C.

    1990-01-01

    Describes the efforts of the Community Colleges for International Development (CCID) consortium to provide technical assistance in Taiwan, Surinam, the Republic of China, and other countries. Highlights separate projects of CCID members, community college programs with companies and international organizations, and the results of community college…

  16. Microwave-assisted Chemical Transformations

    Science.gov (United States)

    In recent years, there has been a considerable interest in developing sustainable chemistries utilizing green chemistry principles. Since the first published report in 1986 by Gedye and Giguere on microwave assisted synthesis in household microwave ovens, the use of microwaves as...

  17. Two Computer-Assisted Experiments

    Science.gov (United States)

    Kraftmakher, Yaakov

    2013-01-01

    Two computer-assisted experiments are described: (i) determination of the speed of ultrasound waves in water and (ii) measurement of the thermal expansion of an aluminum-based alloy. A new data-acquisition system developed by PASCO scientific is used. In both experiments, the "Keep" mode of recording data is employed: the data are…

  18. Computer assisted medical history taking

    NARCIS (Netherlands)

    M.J. Quaak; A.P.M. Hasman (Arie)

    1988-01-01

    textabstractIn this thesis a study is described which was performed to explore the possibilities of computer-assisted history taking to support patient care. A system was developed by which the patient himself enters his medical data into a computer. The system enables an unexperienced user, i.e. a

  19. Computer Assisted Teaching of FORTRAN.

    Science.gov (United States)

    Balman, T.

    1981-01-01

    Discusses an interactive programing system (FCN) developed to assist the teaching of FORTRAN. The educational advantages drawn from incremental compilation of FORTRAN programs, specialized subsystems that can be used for intensive training, the intended role of this programing system, and its contribution to the curriculum are described. (CHC)

  20. Health Instruction Packages: Dental Assisting.

    Science.gov (United States)

    McEnery, Paula

    Text, illustrations, and exercises are utilized in this set of four learning modules to instruct dental assisting students in various office skills. The first module, "Dental Office Telephone Techniques," examines the qualities of a good telephone voice and demeanor and provides guidelines for taking a message and handling various telephone…

  1. Life cycle of mobile devices

    Directory of Open Access Journals (Sweden)

    T.V. Rohal

    2011-12-01

    Full Text Available Article is devoted features of life cycle of mobile devices. The article highlighted a number of disadvantages associated with managing the life cycle of the product. Disadvantages include the orientation is not on the quality of mobile devices and their design, the obsolescence of digital products. The article drew attention to the need for process improvement life cycle management of mobile devices. For since this type of product is now the most popular among the population, consumers are interested, first of all, quality, and only then, look good.

  2. Introducing Life Cycle Impact Assessment

    DEFF Research Database (Denmark)

    Hauschild, Michael Zwicky; Huijbregts, Mark AJ

    2015-01-01

    methodology projects and presents the international scientific discussions and methodological consensus attempts in consecutive working groups under the auspices of the Society of Environmental Toxicology and Chemistry (SETAC) as well as the UNEP/ SETAC Life Cycle Initiative, and the (almost) parallel......This chapter serves as an introduction to the presentation of the many aspects of life cycle impact assessment (LCIA) in this volume of the book series ‘LCA Compendium’. It starts with a brief historical overview of the development of life cycle impact assessment driven by numerous national LCIA...

  3. Prospects for predicting cycle 24

    OpenAIRE

    Choudhuri, Arnab Rai

    2008-01-01

    Although we have reliable data of solar polar fields only from the mid-1970s, it seems that the polar field at a minimum is well correlated with the next cycle, but the strength of the cycle is not correlated with the polar field produced at its end. We explain this by suggesting that the Babcock–Leighton mechanism of poloidal field generation from tilted active regions involves randomness, whereas the other aspects of the dynamo process are more ordered. To model actual cycles, we have to 'c...

  4. (Auto)Ethnographies and Cycling

    DEFF Research Database (Denmark)

    Larsen, Jonas

    2014-01-01

    , habits and affective capacities of cycling are cultivated and performed. The article argues that autoethnography is particularly apt at illuminating the embodied qualities of movement, and it sits within established ethnographies of ‘excising’ and ‘mobile bodies’. In the second part of the article, I...... draw upon ongoing autoethnographies of cycling in a familiar place (my hometown, Copenhagen) and by learning to cycle ‘out-of-place’ (in London) and ‘in-a-new–way’ (when commuting long distance on a racer bike). The study challenges static notions of the body by analysing how cyclists’ (and researchers...

  5. BWROPT: A multi-cycle BWR fuel cycle optimization code

    Energy Technology Data Exchange (ETDEWEB)

    Ottinger, Keith E.; Maldonado, G. Ivan, E-mail: Ivan.Maldonado@utk.edu

    2015-09-15

    Highlights: • A multi-cycle BWR fuel cycle optimization algorithm is presented. • New fuel inventory and core loading pattern determination. • The parallel simulated annealing algorithm was used for the optimization. • Variable sampling probabilities were compared to constant sampling probabilities. - Abstract: A new computer code for performing BWR in-core and out-of-core fuel cycle optimization for multiple cycles simultaneously has been developed. Parallel simulated annealing (PSA) is used to optimize the new fuel inventory and placement of new and reload fuel for each cycle considered. Several algorithm improvements were implemented and evaluated. The most significant of these are variable sampling probabilities and sampling new fuel types from an ordered array. A heuristic control rod pattern (CRP) search algorithm was also implemented, which is useful for single CRP determinations, however, this feature requires significant computational resources and is currently not practical for use in a full multi-cycle optimization. The PSA algorithm was demonstrated to be capable of significant objective function reduction and finding candidate loading patterns without constraint violations. The use of variable sampling probabilities was shown to reduce runtime while producing better results compared to using constant sampling probabilities. Sampling new fuel types from an ordered array was shown to have a mixed effect compared to random new fuel type sampling, whereby using both random and ordered sampling produced better results but required longer runtimes.

  6. Life-cycle cost analysis of adsorption cycles for desalination

    KAUST Repository

    Thu, Kyaw

    2010-08-01

    This paper presents the thermo-economic analysis of the adsorption desalination (AD) cycle that is driven by low-temperature waste heat from exhaust of industrial processes or renewable sources. The AD cycle uses an adsorbent such as the silica gel to desalt the sea or brackish water. Based on an experimental prototype AD plant, the life-cycle cost analysis of AD plants of assorted water production capacities has been simulated and these predictions are translated into unit cost of water production. Our results show that the specific energy consumption of the AD cycle is 1.38 kWh/m3 which is the lowest ever reported. For a plant capacity of 1000 m3/d, the AD cycle offers a unit cost of $0.457/m3 as compared to more than $0.9 for the average RO plants. Besides being cost-effective, the AD cycle is also environment-friendly as it emits less CO2 emission per m3 generated, typically 85% less, by comparison to an RO process. © 2010 Desalination Publications.

  7. "Optimal" application of ventilatory assist in Cheyne-Stokes respiration: a simulation study.

    Science.gov (United States)

    Khoo, M C; Benser, M E

    2005-01-01

    Although a variety of ventilator therapies have been employed to treat Cheyne-Stokes respiration (CSR), these modalities do not completely eliminate CSR. As well, most current strategies require that ventilatory assist be provided continuously. We used a computer model of the respiratory control system to determine whether a ventilatory assist strategy could be found that would substantially reduce the severity of CSR while minimizing the application of positive airway pressure. We assessed the effects of different levels of ventilatory assist applied during breaths that fell below selected hypopneic thresholds. These could be applied during the descending, ascending, or both phases of the CSR cycle. We found that ventilatory augmentation equal to 30-40% of eupneic drive, applied whenever ventilation fell below 70% of the eupneic level during the ascending or descending-and-ascending phases of CSR led to the greatest regularization of breathing with minimal ventilator intervention. Application of ventilatory assist during the descending phase produced little effect. PMID:17281585

  8. I. Fundamental Practicum: Temperature Measurements of Falling Droplets, July, 1989. II. Industrial Practicum: Interaction and Effect of Adsorbed Organics on Reference Clays and Reservoir Rock, April, 1988. III. Apprenticeship Practicum: Studies of Group XIII Metal Inclusion Complexes, March, 1987

    Science.gov (United States)

    Wells, Mark Richard

    The temperature of 225 μm decane droplets falling through a hot, quiescent, oxygen -free environment were measured using laser-induced exciplex fluorescence thermometry. The temperature of the droplets was found to increase approximately 0.42^ circC/^circC increase in the environment temperature as the environment temperature was increased to 250^circ C. Less than 10% evaporation of the droplets was observed at the highest environment temperatures. This represents one of the first successful applications of a remote-sensing technique for the temperature determination of droplets in a dynamic system. Industrial practicum. The industrial practicum report, entitled "Interaction and Effect of Adsorbed Organics on Reference Clays and Reservoir Rock," is a discussion of the measurement of the effect adsorbed organic material, especially from crude petroleum, has on the surface area, cation exchange capacity, and zeta potential of reference clay material and reservoir rock. In addition, the energetics of adsorption of a petroleum extract onto several reference clays and reservoir rock were measured using both flow and batch microcalorimetry. These results are very important in evaluating and understanding the wettability of reservoir rock and its impact on the recovery of crude oil from a petroleum reservoir. Apprenticeship practicum. "Studies of Group XIII Metal Inclusion Complexes" investigates the structure and dynamics of liquid inclusion complexes having the general formula (R_4N) (Al_2 Me_6I) cdot (C_6H_6) _{rm x}. ^1H and ^{13}C spin-lattice relaxation times, nuclear Overhauser enhancements, and molecular correlation times were measured as well as diffusion coefficients of the various species in solution. The dynamics of transfer between "guest" and free solvent molecules were measured using a variety of techniques. The inherent structure of liquid inclusion complexes as an ordered medium for homogeneous catalysis was studied using hydrogenation catalyzed by

  9. Corporate governance cycles during transition

    DEFF Research Database (Denmark)

    Mygind, Niels; Demina, Natalia; Gregoric, Aleksandra;

    2004-01-01

    -nancial system. To provide simple hypothesis tests, we use Russian enterprise data for 1995-2003 and Slovenian data covering 1998-2003. In spite of differences in institutional development, con-cerning privatization and development of corporate governance institutions, we find that govern-ance cycles are broadly...... of ownership on managers, external domestic and foreign owners. JEL-codes: G3, J5, P2, P3 - Keywords: corporate governance, life-cycle, privatization, ownership change, transition economies, Russia and Slovenia.......Ownership is determined by firm specific factors and the environment. Firms change over their life-cycle. The governance cycle - here defined as changes in identity of the dominant owner and own-ership concentration - is marked by key phases including start-up, growth, and possibly a restructur...

  10. Revenue cycle management, Part II.

    Science.gov (United States)

    Crew, Matt

    2007-01-01

    The proper management of your revenue cycle requires the application of "best practices" and the continual monitoring and measuring of the entire cycle. The correct technology will enable you to gain the insight and efficiencies needed in the ever-changing healthcare economy. The revenue cycle is a process that begins when you negotiate payor contracts, set fees, and schedule appointments and continues until claims are paid in full. Every single step in the cycle carries equal importance. Monitoring all phases and a commitment to continually communicating the results will allow you to achieve unparalleled success. In part I of this article, we explored the importance of contracting, scheduling, and case management as well as coding and clinical documentation. We will now take a closer look at the benefits charge capture, claim submission, payment posting, accounts receivable follow-up, and reporting can mean to your practice.

  11. Total Product Life Cycle (TPLC)

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Total Product Life Cycle (TPLC) database integrates premarket and postmarket data about medical devices. It includes information pulled from CDRH databases...

  12. Mirador - Carbon Cycle and Ecosystems

    Data.gov (United States)

    National Aeronautics and Space Administration — Earth Science data access made simple. This Focus Area deals with the cycling of carbon in reservoirs and ecosystems as it changes naturally, is changed by humans,...

  13. Mirador - Water and Energy Cycles

    Data.gov (United States)

    National Aeronautics and Space Administration — Earth Science data access made simple. Through water and energy cycle research we can improve hurricane prediction, quantify tropical rainfall and eventually begin...

  14. Cycling in multimodal transport behaviours

    DEFF Research Database (Denmark)

    Olafsson, Anton Stahl; Nielsen, Thomas Sick; Carstensen, Trine Agervig

    2016-01-01

    explores how cycling forms part of multimodal transport behaviour based on survey data on transport modes and travel purposes and the weekly frequency of out-of-home activities and travel mode use in a representative sample of adult Danes (n = 1957). The following five distinct multimodal travel segments......Multimodality is important for achieving less car dependent lifestyles and more sustainable transport behaviours. It is widely recognised that cycling plays a prominent role in sustainable transport. However, research has largely focused on cycling substituting motorised transport. This study...... or 'modality styles' are identified: 'education transport'; 'public-based transport'; 'limited transport'; 'bicycle-based transport'; and 'car-based transport'. Travel behaviour is predominantly multimodal with few unimodal car-drivers being identified. Substantial cycling takes place in all modality styles...

  15. Towards Life Cycle Sustainability Assessment

    Directory of Open Access Journals (Sweden)

    Marzia Traverso

    2010-10-01

    Full Text Available Sustainability is nowadays accepted by all stakeholders as a guiding principle for both public policy making and corporate strategies. However, the biggest challenge for most organizations remains in the real and substantial implementation of the sustainability concept. The core of the implementation challenge is the question, how sustainability performance can be measured, especially for products and processes. This paper explores the current status of Life Cycle Sustainability Assessment (LCSA for products and processes. For the environmental dimension well established tools like Life Cycle Assessment are available. For the economic and social dimension, there is still need for consistent and robust indicators and methods. In addition to measuring the individual sustainability dimensions, another challenge is a comprehensive, yet understandable presentation of the results. The “Life Cycle Sustainability Dashboard” and the “Life Cycle Sustainability Triangle” are presented as examples for communication tools for both experts and non expert stakeholders.

  16. Venus Altitude Cycling Balloon Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The ISTAR Group ( IG) and team mate Thin Red Line Aerospace (TRLA) propose a Venus altitude cycling balloon (Venus ACB), an innovative superpressure balloon...

  17. Endogenous, Imperfectly Competitive Business Cycles

    DEFF Research Database (Denmark)

    Whitta-Jacobsen, Hans Jørgen

    We investigate how imperfect competition affects the occurrence and the properties of endogenous, rational expectations business cycles in an overlapping generations model with constant returns to scale in production. The model has explicit product and labor markets all characterized...... by monopolistic competition. An implicit assumption of barriers to entry justifies that the number of firms is fixed even when positive profits occur. It turns out that both market power of firms on the product markets and market power of unions on the labor markets make the occurrence of cycles more likely....... In particular, imperfect competition on the product markets and the positive profits associated with it may have the effect that there is a cycle even if the labor supply curve is increasing in the real-wage rate. For competitive cycles is required not only a decreasing labor supply curve, but a wage elasticity...

  18. Stability ordering of cycle expansions

    CERN Document Server

    Dettmann, C P

    1997-01-01

    We propose that cycle expansions be ordered with respect to stability rather than orbit length for many chaotic systems, particularly those exhibiting crises. This is illustrated with the strong field Lorentz gas, where we obtain significant improvements over traditional approaches.

  19. Glacial Cycles and Milankovitch Forcing

    CERN Document Server

    Raghuraman, Shiv Priyam

    2015-01-01

    Using a recent conceptual model of the glacial-interglacial cycles we present more evidence of Milankovitch cycles being the trigger for retreat and forming of ice sheets in the cycles. This model is based on a finite approximation of an infinite dimensional model which has three components: Budyko's energy balance model describing the annual mean temperatures at latitudes, Widiasih's ODE which describes the behavior of the edge of the ice sheet, and Walsh et al. who introduced a snow line to account for glacial accumulation and ablation zones. Certain variables in the model are made to depend on the Milankovitch cycles, in particular, the obliquity of the Earth's axis and the eccentricity of the Earth's orbit. We see as a result that deglaciation and glaciation do occur mostly due to obliquity and to some extent eccentricity.

  20. On acyclicity of games with cycles

    DEFF Research Database (Denmark)

    Andersson, Klas Olof Daniel; Hansen, Thomas Dueholm; Gurvich, Vladimir

    2010-01-01

    We study restricted improvement cycles (ri-cycles) in finite positional n-person games with perfect information modeled by directed graphs (di-graphs) that may contain directed cycles (di-cycles). We assume that all these di-cycles form one outcome c, for example, a draw. We obtain criteria of re...