Sample records for assisting apprenticeship cycles

  1. Observation, assisting, apprenticeship: cycles of visual and kinesthetic learning in dental education. (United States)

    Horst, Jeremy A; Clark, Matthew D; Lee, Andrew H


    Dentists are self-selected for visual and kinesthetic learning preferences. Watching another practitioner perform treatment can be incredibly didactic, both before and after learning the procedure. This missing part of dental education has the capacity to play a tremendous role in dental education for all levels of practitioner. Dental students in their clinical years begin to realize the meaning of dentistry as a practice, a set of skills that are never perfected. Abundant evidence demonstrates that cycling between observation and practice enhances procedural learning and retention, yet this mechanism is vastly underused in dental education. Collaborative treatment paradigms, wherein the able student assists a more experienced practitioner, can create mentorship. Learning potentially esoteric information or subtle nuances of clinical acumen is facilitated by the contextual framework of the clinical environment and is strengthened by emotional attachments through interpersonal interactions. In this article, we explore the evidence surrounding mentorship and clinical observation both before and after students are given the responsibilities of patient care, which together recapitulate clinical apprenticeship. Finally, we present examples of how apprenticeship can be brought back to dental education, including evaluation of a clinical assisting program that we implemented and explanation of a hypothetical faculty-student practice partnership model.

  2. Observation, Assisting, Apprenticeship: Cycles of Visual and Kinesthetic Learning in Dental Education (United States)

    Horst, Jeremy A.; Clark, Matthew D.; Lee, Andrew H.


    Dentists are self-selected for visual and kinesthetic learning preferences. Watching another practitioner perform treatment can be incredibly didactic, both before and after learning the procedure. This missing part of dental education has the capacity to play a tremendous role in dental education for all levels of practitioner. Dental students in their clinical years begin to realize the meaning of dentistry as a practice, a set of skills that are never perfected. Abundant evidence demonstrates that cycling between observation and practice enhances procedural learning and retention, yet this mechanism is vastly underused in dental education. Collaborative treatment paradigms, wherein the able student assists a more experienced practitioner, can create mentorship. Learning potentially esoteric information or subtle nuances of clinical acumen is facilitated by the contextual framework of the clinical environment and is strengthened by emotional attachments through interpersonal interactions. In this article, we explore the evidence surrounding mentorship and clinical observation both before and after students are given the responsibilities of patient care, which together recapitulate clinical apprenticeship. Finally, we present examples of how apprenticeship can be brought back to dental education, including evaluation of a clinical assisting program that we implemented and explanation of a hypothetical faculty-student practice partnership model. PMID:19648563

  3. Cognitive Apprenticeship and the Supervision of Science and Engineering Research Assistants (United States)

    Maher, Michelle A.; Gilmore, Joanna A.; Feldon, David F.; Davis, Telesia E.


    We explore and critically reflect on the research development of eight science or engineering doctoral students serving as research assistants over the course of an academic year. We use a cognitive apprenticeship framework, assumed to explain doctoral students' skill development, to interpret narratives of skill development for students and their…

  4. Cognitive Apprenticeship and the Supervision of Science and Engineering Research Assistants


    Michelle A Maher; Joanna A Gilmore; Feldon, David F; Telesia E. Davis


    We explore and critically reflect on the research development of eight science or engineering doctoral students serving as research assistants over the course of an academic year. We use a cognitive apprenticeship framework, assumed to explain doctoral students’ skill development, to interpret narratives of skill development for students and their faculty supervisors, and compare these narratives against empirical measurements of student research skill development over the course of an academ...

  5. Assisted Cycling Tours (United States)

    Hollingsworth, Jan Carter


    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…

  6. Anatomy teaching assistants: facilitating teaching skills for medical students through apprenticeship and mentoring. (United States)

    Lachman, Nirusha; Christensen, Kevin N; Pawlina, Wojciech


    Significant increase in the literature regarding "residents as teachers" highlights the importance of providing opportunities and implementing guidelines for continuing medical education and professional growth. While most medical students are enthusiastic about their future role as resident-educators, both students and residents feel uncomfortable teaching their peers due to the lack of necessary skills. However, whilst limited and perhaps only available to select individuals, opportunities for developing good teaching practice do exist and may be identified in courses that offer basic sciences. The Department of Anatomy, College of Medicine, Mayo Clinic offers a teaching assistant (TA) elective experience to third- and fourth-year medical students through integrated apprenticeship and mentoring during the human structure didactic block. This article, aims to describe a curriculum for a TA elective within the framework of a basic science course through mentoring and apprenticeship. Opportunities for medical students to become TAs, process of TAs' recruitment, mentoring and facilitation of teaching and education research skills, a method for providing feedback and debriefing are described. Developing teaching practice based on apprenticeship and mentoring lends to more accountability to both TA's and course faculty by incorporating universal competencies to facilitate the TA experience.

  7. Affirming professional identities through an apprenticeship: insights from a four-year longitudinal case study. (United States)

    Boudreau, J Donald; Macdonald, Mary Ellen; Steinert, Yvonne


    A four-year course, entitled Physician Apprenticeship, was introduced at McGill University's Faculty of Medicine in 2005. The primary objective of the course is to assist students in their transition from laymen to physicians. The goal of this study was to understand the apprenticeship learning process, particularly its contribution to professional identity formation. For data collection, the authors used a longitudinal case study design with mixed methods. They conducted the study over a four-year curricular cycle, from 2008-2009 to 2011-2012. The case consisted of three apprenticeship groups. Students (n = 24) and teachers (n = 3) represented two subgroups for data analysis. Physician Apprenticeship activities promoted and sustained medical professionalization in the participants. Salient features of successful apprenticeship learning were access to authentic clinical experiences as well as the provision of a safe learning environment and guided critical reflection. The latter two ingredients appear to be mutually reinforcing and contributed to the creation of meaningful student-teacher relationships. Teachers exhibited several qualities that align with a parental role. Students became increasingly aware of having entered the kinship of physicians. Teachers experienced a renewal and validation of their commitment to the ideals of medicine. Findings strongly suggest that a longitudinal apprenticeship in an undergraduate medical program can contribute to the formation and reaffirmation of professional identity. The case study design permitted the authors to create a provisional conceptual model explicating important features of the apprenticeship learning process.

  8. Successful apprenticeships

    CERN Multimedia

    Anaïs Schaeffer


    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...

  9. Recruitment and Apprenticeship Training


    Mohrenweiser, Jens


    The paper assesses non-training firm’s potential for free-riding on the training efforts of firms that train apprentices. In order to assess potential free-riding, the paper analyses whether training or non-training firms are more likely to recruit apprenticeship graduates that have been trained elsewhere. Firms without apprenticeships are less likely to hire apprenticeship graduates trained elsewhere than training firms. If these firms do hire apprenticeship graduates, they hire a smaller pr...

  10. Cognitive Apprenticeship During Preceptorship. (United States)

    Key, Betty A; Wright, Vivian H

    This study investigated whether implementation of an instructional strategy during hospital orientation preceptorship of newly graduated nurses would impact their confidence and ease of transition. Findings revealed an increase in confidence of newly graduated nurses after implementation of cognitive apprenticeship principles. The findings suggest that it can be beneficial to teaching cognitive apprenticeship principles to preceptors for use during preceptorship.

  11. Degree Apprenticeships: Realising Opportunities (United States)

    Universities UK, 2017


    This report represents a follow-up study to a March 2016 report, "The Future Growth of Degree Apprenticeships" (ED574134), an assessment of university engagement with the very early stages of the development of degree apprenticeships. This follow-up study draws on an extensive survey of what universities are now doing and plan to do. The…

  12. Apprenticeship Programme Requirements and Apprenticeship Completion Rates in Canada (United States)

    Coe, Patrick J.


    The past two decades have seen considerable growth in new apprenticeship registrations in Canada. However, this has not been matched by a corresponding increase in completions. Across provinces, trades and time, there is considerable variation in apprenticeship completion rates. In Canada, apprenticeship programmes are provincially regulated and…

  13. Warehousing Competency Profile. Apprenticeship Training. (United States)

    Alberta Learning, Edmonton. Apprenticeship and Industry Training.

    This document presents information about the apprenticeship training program of Alberta, Canada, in general and the warehousing program in particular. The first part of the document discusses the following items: Alberta's apprenticeship and industry training system; the apprenticeship and industry training committee structure; local…

  14. Pre-Apprenticeship Training Activity (United States)

    Foley, Paul; Blomberg, Davinia


    Pre-apprenticeships are becoming an increasingly important component of the Australian vocational education and training (VET) system. The purpose of this report is to investigate the level of pre-apprenticeship activity occurring in Australia and to examine the characteristics of pre-apprenticeship courses and the students undertaking those…

  15. Apprenticeships in England: What Next? (United States)

    Hogarth, Terence; Gambin, Lynn; Hasluck, Chris


    This paper examines recent development in Apprenticeship training in England. Since the introduction of Modern Apprenticeships in the mid-1990s this form of training has been subject to much analysis and reform. This paper summarises the current situation and highlights some of the challenges and opportunities which face Apprenticeship over the…

  16. Apprenticeships in success

    CERN Multimedia

    Anaïs Schaeffer


    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...

  17. Developing Apprenticeships. Briefing Note (United States)

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


    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'"…

  18. Apprenticeship as a remedy for youth unemployement

    NARCIS (Netherlands)

    dr. H.A.M. van Lieshout


    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

  19. Requests for medical assistance during an amateur road cycling race. (United States)

    Roi, Giulio Sergio; Tinti, Riccardo


    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. Copyright © 2014 Elsevier Ltd. All rights reserved.

  20. Apprenticeship: a worthwhile option

    CERN Multimedia

    Laëtitia Pedroso


    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&...

  1. The postdoctoral apprenticeship. (United States)

    Neill, Ushma S


    Much has been written already about whether the scientific machine is churning out too many PhDs and postdocs when there are a limited number of academic jobs and the competition for funding and space in competitive journals is intense. But gratifyingly, there exists a vast array of other scientific careers. We need to mentor and advise trainees about the diverse and rewarding professional opportunities that are available beyond the postdoctoral apprenticeship period.

  2. Apprenticeship: a strategy for growth


    Howard Gospel; Paul Ryan; Hilary Steedman


    Referring to issues raised by recent reforms and future expansion of apprenticeship, this report reveals the consequences serious skills shortages have on the economy as a whole. It calls for radical improvements to the provision of apprenticeship training in Britain in order to close the skills gap and bring Britain in to line with other countries.

  3. Mr Cameron's Three Million Apprenticeships (United States)

    Allen, Martin


    In the 2015 general election campaign David Cameron celebrated the success of apprenticeships during the Coalition and promised another 3 million. This article argues that the "reinvention" of apprenticeships has neither created real skills nor provided real alternatives for young people and that the UK schemes fall far short of those in…

  4. 29 CFR 1625.21 - Apprenticeship programs. (United States)


    ... 29 Labor 4 2010-07-01 2010-07-01 false Apprenticeship programs. 1625.21 Section 1625.21 Labor... EMPLOYMENT ACT Substantive Regulations § 1625.21 Apprenticeship programs. All apprenticeship programs, including those apprenticeship programs created or maintained by joint labor-management organizations, are...

  5. Apprenticeship at CERN

    CERN Multimedia

    Staff Association


    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 ...

  6. Whatever happened to apprenticeship learning? (United States)

    Caldwell, Gordon


    I have been a clinical tutor for 10 years in Worthing Hospital, UK. During this time I have seen an increased emphasis on classroom teaching, assessments in controlled situations and simulation, rather than on apprenticeship learning during well-supervised clinical working. At the educational conference on 'Learning without Leaving the Workplace' hosted by my hospital, I had an opportunity to present my reflections on apprenticeship or situated learning. This article is a summary of that talk. The relatively new model of 'situated learning' offers an opportunity for academics and clinicians to revitalise the apprenticeship model of learning in, and being stimulated by, the clinical workplace. © Blackwell Publishing Ltd 2011.

  7. Apprenticeship or reflection

    DEFF Research Database (Denmark)

    Dau, Susanne


    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......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...... 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...

  8. Joint Torques and Patellofemoral Force During Single-Leg Assisted and Unassisted Cycling. (United States)

    Bini, Rodrigo R; Jacques, Tiago C; Vaz, Marco A


    Unassisted single-leg cycling should be replaced by assisted single-leg cycling, given that this last approach has potential to mimic joint kinetics and kinematics from double-leg cycling. However, there is need to test if assisting devices during pedaling effectively replicate joint forces and torque from double-leg cycling. To compare double-leg, single-leg assisted, and unassisted cycling in terms of lower-limb kinetics and kinematics. Cross-sectional crossover. Laboratory. 14 healthy nonathletes. Two double-leg cycling trials (240 ± 23 W) and 2 single-leg trials (120 ± 11 W) at 90 rpm were performed for 2 min using a bicycle attached to a cycle trainer. Measurements of pedal force and joint kinematics of participants' right lower limb were performed during double- and single-leg trials. For the single-leg assisted trial, a custom-made adaptor was used to attach 10 kg of weight to the contralateral crank. Peak hip, knee, and ankle torques (flexors and extensors) along with knee-flexion angle and peak patellofemoral compressive force. Reduced peak hip-extensor torque (10%) and increased peak knee-flexor torque (157%) were observed at the single-leg assisted cycling compared with the double-leg cycling. No differences were found for peak patellofemoral compressive force or knee-flexion angle comparing double-leg with single-leg assisted cycling. However, single-leg unassisted cycling resulted in larger peak patellofemoral compressive force (28%) and lower knee-flexion angle (3%) than double-leg cycling. These results suggest that although single-leg assisted cycling differs for joint torques, it replicates knee loads from double-leg cycling.

  9. Effects of electric stimulation-assisted cycling training in people with chronic stroke

    NARCIS (Netherlands)

    Janssen, T.W.J.; Beltman, J.M.; Elich, P.; Koppe, P.A.; Konijnenbelt, H.; de Haan, A.; Gerrits, K.H.L.


    Janssen TW, Beltman JM, Elich P, Koppe PA, Konijnenbelt H, de Haan A, Gerrits KH. Effects of electric stimulation-assisted cycling training in people with chronic stroke. Objective: To evaluate whether leg cycling training in subjects with chronic stroke can improve cycling performance, aerobic

  10. 28 CFR 345.82 - Apprenticeship training. (United States)


    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Apprenticeship training. 345.82 Section... INDUSTRIES (FPI) INMATE WORK PROGRAMS FPI Inmate Training and Scholarship Programs § 345.82 Apprenticeship training. FPI provides inmate workers with an opportunity to participate in apprenticeship training...

  11. 29 CFR 785.32 - Apprenticeship training. (United States)


    ... 29 Labor 3 2010-07-01 2010-07-01 false Apprenticeship training. 785.32 Section 785.32 Labor... Lectures, Meetings and Training Programs § 785.32 Apprenticeship training. As an enforcement policy, time... apprenticeship programs may be excluded from working time if the following criteria are met: (a) The apprentice...

  12. Do Employment Subsidies Reduce Early Apprenticeship Dropout? (United States)

    Fries, Jan; Göbel, Christian; Maier, Michael F.


    We evaluate the effect of the Apprenticeship Bonus, an employment subsidy programme, on early apprenticeship dropout. Eligibility for the programme is restricted to school leavers who have actively looked for an apprenticeship to start immediately after leaving school, but were unsuccessful in finding one. Our analysis is based on rich survey data…

  13. Should Your School Offer Apprenticeship Training? (United States)

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


    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…

  14. Foreign Assistance Dependency: Breaking the Cycle Through Advanced Education (United States)


    79 VI. LDS PEF : PRIVATE RELIGIOUS ASSISTANCE ...............................................81 A. HISTORY AND...93 2. Solution: The Perpetual Education Fund........................................95 3. PEF ...Organization.............................................................................96 4. How PEF Works

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

    CERN Multimedia

    Anne Gentil-Beccot


    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)...

  16. Analysis of the pharmaceutical assistance cycle in Romelândia, Santa Catarina, Brazil


    Prevedello,Patrícia; Busato, Maria Assunta


    The Pharmaceutical Assistance Cycle (PA) is the basis for healthcare services through which pharmaceutical assistance and expertise can be implemented in a functional and structured way to meet public health demands, adhere to the Brazilian Ministry of Health vision, and strike a balance in the contemporary struggle for health equity. The aim of this research is to analyze the effectiveness of the PA cycle in the city of Romelândia (SC), through a study conducted at a Primary Healthcare ...

  17. Motorcycle Mechanic: Apprenticeship Course Outline. Apprenticeship and Industry Training. 4912 (United States)

    Alberta Enterprise and Advanced Education, 2012


    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…

  18. Multicultural Apprenticeships in Teacher Education (United States)

    Seidl, Barbara L.; Monobe, Gumiko; Conley, Matthew D.; Burgos, Lisandra Pedraza; Rivera, Herminia Janet; Uchida, Chiharu H.


    The purpose of this paper is to explore the theoretical structure of what we call multicultural apprenticeships in teacher education. This structure is drawn from decades of scholarship and research in teacher education, in general, and in preparing teachers for diversity, in particular. It is further situated within our own work in an Early…

  19. Apprenticeships: Opportunities for the Workforce (United States)

    McPhail, Irving Pressley


    With President George W. Bush praising the role community colleges play in educating and training the nation's workers and proposing $250 million in grants to community colleges that partner with employers, the atmosphere is ripe for community colleges to forge strong relationships with this country's apprenticeship programs. According to the U.S.…

  20. Pre-Apprenticeships and Their Impact on Apprenticeship Completion and Satisfaction. Occasional Paper (United States)

    Karmel, Tom; Oliver, Damian


    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…

  1. Leptin and its potential interest in assisted reproduction cycles. (United States)

    Catteau, A; Caillon, H; Barrière, P; Denis, M G; Masson, D; Fréour, T


    Leptin, an adipose hormone, has been shown to control energy homeostasis and food intake, and exert many actions on female reproductive function. Consequently, this adipokine is a pivotal factor in studies conducted on animal models and humans to decipher the mechanisms behind the infertility often observed in obese women. A systematic PubMed search was conducted on all articles, published up to January 2015 and related to leptin and its actions on energy balance and reproduction, using the following key words: leptin, reproduction, infertility, IVF and controlled ovarian stimulation. The available literature was reviewed in order to provide an overview of the current knowledge on the physiological roles of leptin, its involvement in female reproductive function and its potential interest as a prognostic marker in IVF cycles. Animal and human studies show that leptin communicates nutritional status to the central nervous system and emerging evidence has demonstrated that leptin is involved in the control of reproductive functions by acting both directly on the ovaries and indirectly on the central nervous system. With respect to the clinical use of leptin as a biomarker in IVF cycles, a systematic review of the literature suggested its potential interest as a predictor of IVF outcome, as high serum and/or follicular fluid leptin concentrations have correlated negatively with cycle outcome. However, these preliminary results remain to be confirmed. Leptin regulates energy balance and female reproductive function, mainly through its action on hypothalamic-pituitary-ovarian function, whose molecular and cellular aspects are progressively being deciphered. Preliminary studies evaluating leptin as a biomarker in human IVF seem promising but need further confirmation. © The Author 2015. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology. All rights reserved. For Permissions, please email:

  2. Learning to argue via apprenticeship. (United States)

    Papathomas, Lia; Kuhn, Deanna


    We examined apprenticeship, in the form of interaction with a more capable other, as a mechanism of development of higher-order reasoning skills, specifically argumentation. Over a 1-year period, middle school students engaged in twice-weekly electronic dialogs with a sequence of different peers on a series of social issues. In one group, unbeknownst to participants, a highly capable adult substituted for peers in half of their dialogs. Beginning immediately, increasing with time, and extending to peer-only dialogs on a new topic, the quality of argumentation shown by the experimental group exceeded that of a comparison peer-only group, highlighting the power of apprenticeship as a mechanism in the development of reasoning, a demonstration of both theoretical and applied significance. Copyright © 2017 Elsevier Inc. All rights reserved.

  3. Assisted hatching and live births in first-cycle frozen embryo transfers. (United States)

    Knudtson, Jennifer F; Failor, Courtney M; Gelfond, Jonathan A; Goros, Martin W; Chang, Tiencheng Arthur; Schenken, Robert S; Robinson, Randal D


    To assess the effect of assisted hatching (AH) on live-birth rates in a retrospective cohort of patients undergoing first-cycle, autologous frozen embryo transfer (FET). Longitudinal cohort using cycles reported to the Society for Assisted Reproductive Technology Clinic Outcomes Reporting System between 2004 and 2013. Not applicable. Women who underwent first-cycle, autologous FET with (n = 70,738) and without (n = 80,795) AH reported from 2004 to 2013. None. Live births. Propensity matching was used to account for confounding covariates, and a logistic regression model was constructed to identify the predictors of live-birth rates in relationship to AH. In all first-cycle FETs, there was a slight but statistically significant decrease in the live-birth rate with AH compared with no AH (34.2% vs. 35.4%). In older patients and in the years 2012-2013 AH was associated with decreased live births. Live-birth rates and the number of AH cycles performed before FET vary by the geographic location of clinics. Assisted hatching slightly decreases the live-birth rate in first-cycle, autologous FET. Its use should be carefully considered, especially in patients 38 years old and older. Prospective, clinical studies are needed to improve our knowledge of the impact of AH. Copyright © 2017 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

  4. The Future Growth of Degree Apprenticeships (United States)

    Universities UK, 2016


    Degree apprenticeships provide an exciting development in vocational higher education and a new opportunity for universities. Universities UK (UUK) commissioned CFE Research to identify lessons and key challenges from universities involved to date and make recommendations to help ensure the future successful development of degree apprenticeships.…

  5. [Constructive learning theories and clinical apprenticeship]. (United States)

    Fog-Petersen, Cecilie; Arnfred, Sidse Marie


    The article introduces how constructive learning theories as Constructive Alignment, Situated Learning and Cognitive Apprenticeship can explain learning during medical students' clinical placements and points out why Cognitive Apprenticeship can be particularly applicable in clinical psychiatry. This results in a discussion of the time frame, the organization of the placement in psychiatry at University of Copenhagen.

  6. 29 CFR 29.14 - Derecognition of State Apprenticeship Agencies. (United States)


    ... 29 Labor 1 2010-07-01 2010-07-01 true Derecognition of State Apprenticeship Agencies. 29.14... APPRENTICESHIP PROGRAMS § 29.14 Derecognition of State Apprenticeship Agencies. The recognition for Federal purposes of a State Apprenticeship Agency may be withdrawn for the failure to fulfill, or operate in...

  7. Assistant professor's National Science Foundation CAREER grant will help understand cell cycle model


    Mackay, Steven D.


    Yang Cao, an assistant professor in the computer science department at Virginia Tech's College of Engineering, has won a $550,000 National Science Foundation Faculty Early Career Development (CAREER) award to develop computer simulation methods that will better understand the complex, discrete, and stochastic cell cycle model.

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

    NARCIS (Netherlands)

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


    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

  9. Developing learning community model with soft skill integration for the building engineering apprenticeship programme in vocational high school (United States)

    Sutrisno, Dardiri, Ahmad; Sugandi, R. Machmud


    This study aimed to address the procedure, effectiveness, and problems in the implementation of learning model for Building Engineering Apprenticeship Training Programme. This study was carried out through survey method and experiment. The data were collected using questionnaire, test, and assessment sheet. The collected data were examined through description, t-test, and covariance analysis. The results of the study showed that (1) the model's procedure covered preparation course, readiness assessment, assignment distribution, handing over students to apprenticeship instructors, task completion, assisting, field assessment, report writing, and follow-up examination, (2) the Learning Community model could significantly improve students' active learning, but not improve students' hard skills and soft skills, and (3) the problems emerging in the implementation of the model were (1) students' difficulties in finding apprenticeship places and qualified instructors, and asking for relevant tasks, (2) teachers' difficulties in determining relevant tasks and monitoring students, and (3) apprenticeship instructors' difficulties in assigning, monitoring, and assessing students.

  10. Apprenticeship Learning for Robotic Control (United States)


    spaces.  Our  key  contributions   have  been  in   handling  probabilistic  collision  checking  for  articulated   robots  [62...AFRL-AFOSR-VA-TR-2015-0315 Apprenticeship Learning for Robotic Control Pieter Abbeel REGENTS OF THE UNIVERSITY OF CALIFORNIA THE Final Report 10/09...Research Laboratory Air Force Materiel Command REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188 The public reporting burden for this

  11. Review of the Provision of Job Placement Assistance and Related Employment Services to Members of the Reserve Components (United States)


    issues; assistance with entrepreneurship ; internships, apprenticeships, and training; financial assistance; and access to information and tools. We... translate military skills into the civilian workforce.”11 The impetus behind this inter- agency effort was to improve, simplify, and consolidate the...assistance with legal issues • assistance with entrepreneurship • internships, apprenticeship, and training • financial assistance • access to

  12. Cycle 1 as predictor of assisted reproductive technology treatment outcome over multiple cycles: an analysis of linked cycles from the Society for Assisted Reproductive Technology Clinic Outcomes Reporting System online database. (United States)

    Stern, Judy E; Brown, Morton B; Luke, Barbara; Wantman, Ethan; Lederman, Avi; Hornstein, Mark D


    To determine whether the first cycle of assisted reproductive technology (ART) predicts treatment course and outcome. Retrospective study of linked cycles. Society for Assisted Reproductive Technology Clinic Outcome Reporting System database. A total of 6,352 ART patients residing or treated in Massachusetts with first treatment cycle in 2004-2005 using fresh, autologous oocytes and no prior ART. Women were categorized by first cycle as follows: Group I, no retrieval; Group II, retrieval, no transfer; Group III, transfer, no embryo cryopreservation; Group IV, transfer plus cryopreservation; and Group V, all embryos cryopreserved. None. Cumulative live-birth delivery per woman, use of donor eggs, intracytoplasmic sperm injection (ICSI), or frozen embryo transfers (FET). Groups differed in age, baseline FSH level, prior gravidity, diagnosis, and failure to return for Cycle 2. Live-birth delivery per woman for groups I through V for women with no delivery in Cycle I were 32.1%, 35.9%, 40.1%, 53.4%, and 51.3%, respectively. Groups I and II were more likely to subsequently use donor eggs (14.5% and 10.9%). Group II had the highest use of ICSI (73.3%); Group III had the lowest use of FET (8.9%). Course of treatment in the first ART cycle is related to different cumulative live-birth delivery rates and eventual use of donor egg, ICSI, and FET. Copyright © 2011 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.


    Directory of Open Access Journals (Sweden)



    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.

  14. The Danish Apprenticeship System, 1931-2002

    DEFF Research Database (Denmark)

    Albæk, Karsten


    This paper provides an overview of the evolution of the apprenticeship system in a country, which provides large-scale employer-provided training for new entrants on the labour market. The overview includes institutional traits of the Danish labour market which help sustain the system by alleviat......This paper provides an overview of the evolution of the apprenticeship system in a country, which provides large-scale employer-provided training for new entrants on the labour market. The overview includes institutional traits of the Danish labour market which help sustain the system...... systems, there are very few countries to look at concerning full-scale apprenticeship systems....

  15. Venous thromboembolism in assisted reproductive technologies: comparison between unsuccessful versus successful cycles in an Italian cohort. (United States)

    Villani, Michela; Favuzzi, Giovanni; Totaro, Pasquale; Chinni, Elena; Vecchione, Gennaro; Vergura, Patrizia; Fischetti, Lucia; Margaglione, Maurizio; Grandone, Elvira


    Pregnancies after assisted reproductive technologies (ART) have been associated with an increased risk of venous thromboembolism (VTE). On the contrary, the magnitude of this risk in unsuccessful ART cycles (not resulting in a clinical pregnancy) has not yet been clearly defined. In this study, we evaluated the incidence of VTE in unsuccessful cycles and compared it with that recorded in successful cycles in the same study population. From a cohort of 998 women consecutively referred by local Fertility Clinics to our Atherosclerosis and Thrombosis Unit (April 2002-July 2011), we identified and included women with at least one cycle of ovarian stimulation and a negative history for VTE. Overall, 661 women undergone 1518 unsuccessful and 318 successful cycles of ovarian stimulation, respectively, were analysed. VTE events occurred in 2/1518 (1.3‰) unsuccessful cycles compared with 3/318 (9.4‰) successful cycles, (Two-tailed Fisher exact test, p = 0.04, OR 0.14, 95% CI 0.02-1.02). Both cases observed in unsuccessful cycles were isolated pulmonary embolism occurred after OHSS; no antithrombotic prophylaxis had been prescribed. At logistic regression analysis, the occurrence of successful cycle and BMI were significantly and independently associated with the occurrence of VTE with an OR of 13.94 (95% CI 1.41-137.45) and 1.23 (95% CI 1.01-1.49), respectively. VTE incidence is significantly lower in unsuccessful cycles as compared to that of successful ones. However, although rare, thrombotic risk during ovarian stimulation cannot be excluded and, when it occurs, can be life-threatening. Therefore, particular attention should be paid to these women, independently of ART outcome.

  16. Describing the apprenticeship of chemists through the language of faculty scientists (United States)

    Skjold, Brandy Ann

    Attempts to bring authentic science into the K-16 classroom have led to the use of sociocultural theories of learning, particularly apprenticeship, to frame science education research. Science educators have brought apprenticeship to science classrooms and have brought students to research laboratories in order to gauge its benefits. The assumption is that these learning opportunities are representative of the actual apprenticeship of scientists. However, there have been no attempts in the literature to describe the apprenticeship of scientists using apprenticeship theory. Understanding what science apprenticeship looks like is a critical component of translating this experience into the classroom. This study sought to describe and analyze the apprenticeship of chemists through the talk of faculty scientists. It used Lave and Wenger’s (1991) theory of Legitimate Peripheral Participation as its framework, concentrating on describing the roles of the participants, the environment and the tasks in the apprenticeship, as per Barab, Squire and Dueber (2000). A total of nine chemistry faculty and teaching assistants were observed across 11 settings representing a range of learning experiences from introductory chemistry lectures to research laboratories. All settings were videotaped, focusing on the instructor. About 89 hours of video was taken, along with observer field notes. All videos were transcribed and transcriptions and field notes were analyzed qualitatively as a broad level discourse analysis. Findings suggest that learners are expected to know basic chemistry content and how to use basic research equipment before entering the research lab. These are taught extensively in classroom settings. However, students are also required to know how to use the literature base to inform their own research, though they were rarely exposed to this in the classrooms. In all settings, conflicts occurred when student under or over-estimated their role in the learning

  17. Developing a foundation apprenticeship in care. (United States)

    Cunningham, A

    This article explores the development of a foundation apprenticeship in care at Sheffield Teaching Hospitals NHS Foundation Trust. The benefits for recruitment and development of the workforce are discussed.

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

    DEFF Research Database (Denmark)

    Ditlevsen, Peter


    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 acco...... glacial and interglacial climate are assisted by internal stochastic noise in the period prior to the last five glacial cycles, while the last five cycles are deterministic responses to the orbital forcing.......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...

  19. Electrically assisted cycling: a new mode for meeting physical activity guidelines? (United States)

    Simons, Monique; Van Es, Eline; Hendriksen, Ingrid


    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. Twelve habitually active adult subjects were requested to cycle a track of 4.3 km at an intensity they would normally choose for commuter cycling, using three different support settings: no support (NO), eco support (ECO), and power support (POW). For estimating the intensity, the oxygen consumption was measured by using a portable gas-analyzing system, and HR was simultaneously measured. The bicycle was equipped with the SRM Training System to measure subjects' power output, pedaling rate, and the cycle velocity. Mean intensity was 6.1 MET for NO, 5.7 MET for ECO, and 5.2 MET for POW. Intensity was significantly lower in POW compared with that in NO. No differences were found between NO and ECO and between ECO and POW. Mean HR was significantly higher in NO compared with that in ECO and POW. The cycling speed with electrical support settings was significantly higher than cycling in the NO condition. Mean power output during cycling was significantly different among all three conditions. Most power outputs were supplied in the NO condition, and the lowest power output was supplied in the POW condition. Intensity during cycling on an EAB, in all three measured conditions, is sufficiently high to contribute to the physical activity guidelines for moderate-intensity health-enhancing physical activity for adults (cutoff, 3 MET). Further study is needed to conclude whether these results still hold when using the EAB in regular daily life and in subjects with other fitness level.

  20. The Apprenticeship System in Canada: Trends and Issues


    Andrew Sharpe; James Gibson


    This report provides an overview of the trends and issues related to the apprenticeship system in Canada. It first discusses theoretical perspectives on apprenticeship, then reviews the institutional features of apprenticeship systems in Canada and in other countries. The report concludes that the market for apprenticeship is principally constrained by employer demand rather than by the supply of potential apprentices. Consequently, it proposes reforms based on three main principles: apprenti...

  1. Postsecondary Vocational Programs vs. Apprenticeships in American Culinary Arts. (United States)

    VanLandingham, Paul G.

    The apprenticeship system in the United States is primarily a private institution, separate from vocational-technical schools. Apprenticeships establish their own guidelines as to the required course of study. Apprentices do not get licensed unless they successfully complete a written and practical exam. Culinary apprenticeships vary. Many large…

  2. Three Million Careers: Making the Apprenticeship Levy Work (United States)

    Learning and Work Institute, 2016


    The Government has a target of three million apprenticeship starts in England by 2020, and is introducing an Apprenticeship Levy on the payroll of large employers to fund this increase and to encourage greater employer engagement with apprenticeships. Concerns have been raised about whether there should be a delay to get the details right;…

  3. 29 CFR 30.15 - State Apprenticeship Councils. (United States)


    ... 29 Labor 1 2010-07-01 2010-07-01 true State Apprenticeship Councils. 30.15 Section 30.15 Labor Office of the Secretary of Labor EQUAL EMPLOYMENT OPPORTUNITY IN APPRENTICESHIP AND TRAINING § 30.15 State Apprenticeship Councils. (a) Adoption of consistent state plans. (1) The Department shall...

  4. Providing for the Future: Providers' Views on Apprenticeship Reform (United States)

    McCrone, Tami; Sims, David; Gladding, Cath


    Apprenticeships are currently undergoing reform in England. Funding mechanisms and the content of Apprenticeship programmes are being restructured. NFER and the Association of Employment and Learning Providers (AELP) have carried out a joint research project to inform future policy and practice with evidence on how providers of Apprenticeships are…

  5. Combining Dedicated Online Training and Apprenticeships in the Field to Assist in Professionalization of Humanitarian Aid Workers: a 2-year Pilot Project for Anesthesia and Intensive Care Residents Working in Resource Constrained and Low-income Countries (United States)

    Foletti, Marco; Ingrassia, Pier Luigi; Ragazzoni, Luca; Djalali, Ahmadreza; Ripoll Gallardo, Alba; Burkle, Frederick M.; Della Corte, Francesco


    Introduction: As a result of the gaps in humanitarian response highlighted by several reports, the international community called for an increased professionalization of humanitarian aid workers. This paper describes a pilot project by an Italian university and a non-profit, non-governmental organization to implement a medical apprenticeship in low-income countries during Anesthesia and Intensive Care Medicine residencies. Methods: Before deployment, participants were required to complete a dedicated online training course about safety and security in the field, principles of anesthesia at the district hospital level, emergency and essential surgical care, essentials of medical treatment in resource-constrained environments and psychological support in emergencies. Results: At the end of the program, a qualitative self-evaluation questionnaire administered to participants highlighted how the project allowed the participants to advance their professional skills when working in a low-resource environment, while also mastering their adapting skills and the ability to interact and cooperate with local healthcare personnel. The project also proved to be a means for personal growth, making these experiences a recommendation for all residents as a necessary step for the professionalization of healthcare personnel involved in humanitarian aid. PMID:25642362

  6. Theoretical Study of A Thermoelectric-assisted Vapor Compression Cycle for Air-source Heat Pump Applications


    Zhu, Lin; Yu, Jianlin


    In this paper, a thermoelectric-assisted vapor compression cycle (TVCC) is proposed for applications in air-source heat pump systems. Compared with the basic vapor compression cycle (BVCC), the TVCC using a thermoelectric heat exchanger (THEX) could enhance the heating capacity of the system in an energy-efficient way. To demonstrate the performance characteristics of TVCC, a case study on this cycle applied to a small air-source heat pump water heater has been conducted based on the develope...

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

    CERN Multimedia


    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.

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

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


    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…

  9. Drywall Finishing Apprenticeship. Course Outline (C-6). (United States)

    Lengert, Gerald

    This course outline was prepard to help apprentice drywall installers and teachers of drywall finishing courses to learn or teach the skills necessary for the apprenticeship course in British Columbia. The course outline consists of 11 tracks (units) that cover the following topics: estimating, job inspection, safety, applying bead, filling…

  10. Assessing the Apprenticeship Approach in the Classroom. (United States)

    Atkinson, Elizabeth


    Presents a summary of the deliberations of a primary school teacher concerning her use of an "apprenticeship approach" to beginning reading instruction. States that it is the teacher's role to use a child's pleasure in a book as a key to the development of reading skills. (RS)

  11. Apprenticeship at the Academy of Music (United States)

    Nielsen, Klaus


    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…

  12. What's the Point of Adult Apprenticeships? (United States)

    Fuller, Alison; Unwin, Lorna


    Is there an optimum age to be an apprentice? For most people, their image of an apprentice would be a teenage school leaver. Yet, in England, the majority of apprentices are over the age of 19 when they start their apprenticeship, and 40 per cent are 25 or over. This would be very unusual in other European countries. In this article, the authors…

  13. 29 CFR 29.7 - Apprenticeship agreement. (United States)


    ... signatures of the contracting parties (apprentice, and the program sponsor or employer), and the signature of... of probation during which the apprenticeship agreement may be cancelled by either party to the..., color, religion, national origin, or sex. (k) Contact information (name, address, phone, and e-mail if...

  14. Apprenticeships Should Work for Women Too! (United States)

    Simon, Linda; Clarke, Kira


    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…

  15. The total pregnancy potential per oocyte aspiration after assisted reproduction-in how many cycles are biologically competent oocytes available? (United States)

    Lemmen, J G; Rodríguez, N M; Andreasen, L D; Loft, A; Ziebe, S


    While stimulation of women prior to assisted reproduction is associated with increased success rates, the total biological pregnancy potential per stimulation cycle is rarely assessed. Retrospective sequential cohort study of the cumulative live birth rate in 1148 first IVF/ICSI-cycles and 5-year follow up of frozen embryo replacement (FER) cycles were used. Oocyte number, number of embryos transferred, and cryopreserved/thawed and transferred embryos in a FER cycle were registered for all patients. Children per oocyte and per transferred embryo and percentage of cycles with births were calculated. We obtained 9529 oocytes. Embryos (2507) were transferred in either fresh or FER cycles, resulting in 422 births and 474 live born children. Median age of the women was 32.5 years (range 20-41.5 years). In total, 34.3 % of all cycles ended with a live birth while in 65.7 % of the cycles, no oocytes were capable of developing into a child. The average number of oocytes needed per live born child after transfer of fresh and thawed embryos was 20 as only 5.0 % of oocytes aspirated in the first IVF/ICSI cycle had the competence to develop into a child. In our setting, overall 5.0 % of the oocytes in a first cycle were biologically competent and in around 2/3 of all cycles, none of the oocytes had the potential to result in the birth of a child.

  16. Comparison of Two Embryo Scoring Systems for Prediction of Outcome in Assisted Reproductive Techniques Cycles

    Directory of Open Access Journals (Sweden)

    Navid Fotoohi Ghiam


    Full Text Available Cumulative embryo score (CES is one of the many embryo scoring methods which have been developed to help clinicians to transfer high quality embryos and predict pregnancy rate in assisted reproductive techniques (ART cycles. Regarding the existing difference in CES calculation this study was done to compare two methods in order to determine the more practical and preferable one. In a retrospective, cross sectional descriptive analytical study, a total of 508 ART cycles in infertile patients treated from November 2002 until March 2004, were evaluated using two methods of CES calculation in embryonic scoring to predict ART outcome. According to one method, CES was obtained by adding the individual scores of all transferred embryos. Whereas in the other reference method, CES was calculated by the sum of each embryo score multiplied by its number of blastomeres on the day of transfer. The mean score of transferred embryos (MSTE was referred to CES divided by the total number of embryos transferred in either method. A total of 109 clinical pregnancies (pregnancy rate 21.5% including 96 singletons, 10 twins and triplets occurred in the 508 ART cycles. The pregnancy rate was strongly correlated to CES & MSTE. According to one method, CES was 12.6±6.4 in pregnant versus 9.2±5.8 in non-pregnant group (P<0.0001. According to the other one, in the pregnant group CES was 86.7±48 versus 68.7±55 in the non-pregnant group (P<0.002. Both methods showed a significant difference. Regarding MSTE, using the first method, in the pregnant group it was 3±0.6 versus 2.8±0.7 in the non-pregnant group (P<0.011 whereas with the other approach it was 21.3±8.6 in the pregnant group versus 19.9±9.07 in non-pregnant (P<0.152 showing that the first method can also predict pregnancy outcome with MSTE. Considering that both MSTE and CES in the first method can significantly predict outcome in ART cycles, it seems this method is preferable and more useful in practice

  17. Apprenticeship training in Denmark : the impacts of subsidies

    DEFF Research Database (Denmark)

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


    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...... and unemployment rates of skilled workers who have served an apprenticeship differ from those of non-skilled workers. In recent years there have been periods with serious mismatches between the demand for and the supply of apprenticeships. Through the 80's subsidies were introduced to overcome this shortage...

  18. The total pregnancy potential per oocyte aspiration after assisted reproduction-in how many cycles are biologically competent oocytes available?

    DEFF Research Database (Denmark)

    Lemmen, J G; Rodríguez, N M; Andreasen, L D


    PURPOSE: While stimulation of women prior to assisted reproduction is associated with increased success rates, the total biological pregnancy potential per stimulation cycle is rarely assessed. METHODS: Retrospective sequential cohort study of the cumulative live birth rate in 1148 first IVF/ICSI...

  19. The Effect of Intercourse around Embryo Transfer on Pregnancy Rate in Assisted Reproductive Technology Cycles

    Directory of Open Access Journals (Sweden)

    Nasim Tabibnejad


    Full Text Available Background: Implantation failure is the most important cause of recurrent in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI failure. Several reports suggest that intercourse during theperitransfer period might improve pregnancy rates. This study is designed to determine whetherintercourse during the peritransfer period will improve pregnancy and implantation rates in patientsundergoing IVF or ICSI.Materials and Methods: In a randomized control trial study, 390 women with at least five yearsinfertility were evaluated. In the study group, 195 patients had intercourse at least once 12 hours afterembryo transfer. Implantation and clinical pregnancy rates were compared with 195 patients in thecontrol group who had no intercourse for the entire assisted reproductive technology (ART cycle.Results: Implantation rate in the study group was 6.5% in comparison with 5.5% for the controlgroup. Clinical pregnancy rates were not significantly higher in study patients when compared tothe control group (14.2% and 11.7% respectively.Conclusion: The results showed that intercourse during the peritransfer period can not increasepregnancy outcome.

  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. Asset life cycle plans: twelve steps to assist strategic decision-making in asset life cycle management

    NARCIS (Netherlands)

    Ruitenburg, Richard Jacob; Braaksma, Anne Johannes Jan; van Dongen, Leonardus Adriana Maria; Carnero, Maria Carmen; Gonzalez-Prida, Vicente


    Effective management of physical assets should deliver maximum business value. Therefore, Asset Management standards such as PAS 55 and ISO 55000 ask for a life cycle approach. However, most existing methods focus only on the short term of the asset's life or the estimation of its remaining life.

  2. Traditional Apprenticeship System of Labour Supply for Housing ...

    African Journals Online (AJOL)


    Traditional Apprenticeship System of Labour Supply for Housing Production in Saki,. Southwestern, Nigeria. *Sanni Lekan and *Alabi Folami Munta. Abstract. The study investigated the extent to which the traditional apprenticeship system, a major stakeholder in the training of building artisans in Nigeria (NHP, 2006), has ...

  3. Towards the improvement of informal apprenticeship scheme for self ...

    African Journals Online (AJOL)

    Thus, there are some problems that militate against the effectiveness of apprenticeship which include: poor evaluation technique, lack of theoretical base on instruction, lack of standards, lack of modern facilities and others. This paper therefore looks at apprenticeship in Nigeria, its benefits, characteristics and the problems ...

  4. Racialised Norms in Apprenticeship Systems in England and Germany (United States)

    Chadderton, Charlotte; Wischmann, Anke


    In this paper, we consider the issue of the under-representation of young people from minority ethnic/migrant backgrounds in apprenticeships in England and Germany. Whilst there are many studies on apprenticeships in England and Germany, few focus on under-representation or discrimination, even fewer on ethnic under-representation, and there are…

  5. Apprenticeships, Collaboration and Scientific Discovery in Academic Field Studies (United States)

    Madden, Derek Scott; Grayson, Diane J.; Madden, Erinn H.; Milewski, Antoni V.; Snyder, Cathy Ann


    Teachers may use apprenticeships and collaboration as instructional strategies that help students to make authentic scientific discoveries as they work as amateur researchers in academic field studies. This concept was examined with 643 students, ages 14-72, who became proficient at field research through cognitive apprenticeships with the…

  6. Apprenticeship Programs Expand with Help of Community Colleges (United States)

    Gonzalez, Jennifer


    The apprenticeship system, long considered an educational relic by some educators and policy makers, is gaining new attention as a model for improving job skills and meeting national college-completion goals. A number of states and community and technical colleges are working to strengthen and expand apprenticeship opportunities. They offer…

  7. Apprenticeship as a Mode of Learning and Model of Education (United States)

    Billett, Stephen


    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…

  8. Rethinking Apprenticeship Training in the British Construction Industry (United States)

    Abdel-Wahab, Mohamed


    The British government continued intervention to support apprenticeship training across the economy has been notable in recent years. The construction industry is the only sector to retain a levy/grant scheme (that supports training including apprenticeships) since 1964, yet it still faces the problem of skills shortages. This article thus reviews…

  9. "Made in the Trade": Youth Attitudes toward Apprenticeship Certification (United States)

    Taylor, Alison; Freeman, Sheryl


    This paper explores the value youth place on apprenticeship training and credentials. Our analysis of interview and survey data from former high school apprentices in two trades suggests that there are several influences on their attitudes toward completion of apprenticeship training. These include how they see themselves as learners and workers…

  10. Learning through Apprenticeship: Belonging to a Workplace, Becoming and Being (United States)

    Chan, Selena


    The transition from school to work, in the form of a trade-based apprenticeship, is one with a long history. Recent socio-historical changes include increased use of technology, the changing nature of work and shifting patters in the employment market are influencing both the apprenticeship journey and its destination. In this article, the…

  11. 50,000 Reasons Why Registered Apprenticeship Works! (United States)

    Oates, Jane; Ladd, John V.


    Registered Apprenticeship has long been known in the United States as a great training option for workers looking to learn a new skill and become an expert-level crafts person in their trade. Be it traditional industries or those that are only now becoming better known, the apprenticeship model has long been part of the training strategies…

  12. Cognitive Apprenticeship in Health Sciences Education: A Qualitative Review (United States)

    Lyons, Kayley; McLaughlin, Jacqueline E.; Khanova, Julia; Roth, Mary T.


    Cognitive apprenticeship theory emphasizes the process of making expert thinking "visible" to students and fostering the cognitive and meta-cognitive processes required for expertise. The purpose of this review was to evaluate the use of cognitive apprenticeship theory with the primary aim of understanding how and to what extent the…

  13. Engaging Employers in Apprenticeship Opportunities: Making It Happen Locally (United States)

    OECD Publishing, 2017


    This joint OECD-ILO publication provides guidance on how local and regional governments can foster business-education partnerships in apprenticeship programmes and other types of work-based learning, drawing on case studies across nine countries. There has been increasing interest in apprenticeships which combine on the job training with…

  14. 29 CFR 29.3 - Eligibility and procedure for registration of an apprenticeship program. (United States)


    ... apprenticeship program. 29.3 Section 29.3 Labor Office of the Secretary of Labor LABOR STANDARDS FOR THE REGISTRATION OF APPRENTICESHIP PROGRAMS § 29.3 Eligibility and procedure for registration of an apprenticeship program. (a) Eligibility for registration of an apprenticeship program for various Federal purposes is...

  15. 77 FR 75195 - Notice of a Virtual Meeting of the Advisory Committee on Apprenticeship (ACA) (United States)


    ... Apprenticeship (ACA) AGENCY: Employment and Training Administration (ETA), Labor. ACTION: Notice of a virtual... Apprenticeship (ACA) on January 17, 2013, which can be accessed from the Office of Apprenticeship's (OA) homepage... CONTACT: The Designated Federal Official, Mr. John V. Ladd, Administrator, Office of Apprenticeship...

  16. The Apprenticeship and Industry Training System: A Resource Manual for LAC and PAC Members. (United States)

    Alberta Learning, Edmonton. Apprenticeship and Industry Training.

    This manual is a reference on the apprenticeship and industry training system for local and provincial apprenticeship committee members, presiding officers, and secretaries in Alberta. Section 1 contains an overview of Alberta's apprenticeship and industry training system. Section 2 provides an overview of the apprenticeship and industry training…

  17. Power System Electrician: Apprenticeship Course Outline. Apprenticeship and Industry Training. 4609 (United States)

    Alberta Advanced Education and Technology, 2009


    The graduate of the Power System Electrician apprenticeship training is a journeyman who will be able to: (1) responsibly do all work tasks expected of a journeyman; (2) supervise, train and coach apprentices; (3) use and maintain hand and power tools to the standards of competency and safety required in the trade; (4) read and interpret drawing,…

  18. Refrigeration and Air Conditioning Mechanic: Apprenticeship Course Outline. Apprenticeship and Industry Training. 1411.2 (United States)

    Alberta Advanced Education and Technology, 2011


    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,…

  19. Lather-Interior Systems Mechanic: Apprenticeship Course Outline. Apprenticeship and Industry Training. 1709 (United States)

    Alberta Advanced Education and Technology, 2009


    The graduate of the Lather-Interior Systems Mechanic apprenticeship program is a certified journeyperson who will be able to: (1) know the characteristics and understand the actions and interactions of Lathing and Interior Systems Mechanic materials; (2) interpret plans and specifications and layout and develop projects accordingly; (3) calculate…

  20. Landscape Gardener: Apprenticeship Course Outline. Apprenticeship and Industry Training. 4711.1 (United States)

    Alberta Advanced Education and Technology, 2011


    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. Automotive Service Technician: Apprenticeship Course Outline. Apprenticeship and Industry Training. 0912 (United States)

    Alberta Advanced Education and Technology, 2012


    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…

  2. Transport Refrigeration Technician: Apprenticeship Course Outline. Apprenticeship and Industry Training. 4112 (United States)

    Alberta Advanced Education and Technology, 2012


    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…

  3. Natural Gas Compression Technician: Apprenticeship Course Outline. Apprenticeship and Industry Training. 5311.1 (United States)

    Alberta Advanced Education and Technology, 2011


    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…

  4. Heavy Equipment Technician: Apprenticeship Course Outline. Apprenticeship and Industry Training. 1912 (United States)

    Alberta Advanced Education and Technology, 2012


    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,…

  5. Cabinetmaker: Apprenticeship Course Outline. Apprenticeship and Industry Training. 3610.3 (United States)

    Alberta Advanced Education and Technology, 2010


    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…

  6. Insulator: Apprenticeship Course Outline. Apprenticeship and Industry Training. 3307.1 (United States)

    Alberta Advanced Education and Technology, 2007


    The graduate of the Insulator apprenticeship program is a certified journeyperson who will be able: (1) responsibly do all work tasks expected of a journeyperson; (2) supervise, train and coach apprentices; (3) demonstrate the installation, fitting, fabrication and attachment of insulation, finishing and weatherproofing materials to a high…

  7. Challenges to Apprenticeship Learning in Religious Education: Narrow Use of the Apprenticeship Model and Current Developments in Youth Ministry (United States)

    de Kock, A.


    In 2012, I proposed the apprenticeship model as a promising catechetical model for church communities in which catechists might be hope generators, and the church community becomes a community of hope. This article argues that the original meaning of the apprenticeship model is challenged by an emphasis in youth ministry practices on the…

  8. Culture media for human pre-implantation embryos in assisted reproductive technology cycles. (United States)

    Youssef, Mohamed M A; Mantikou, Eleni; van Wely, Madelon; Van der Veen, Fulco; Al-Inany, Hesham G; Repping, Sjoerd; Mastenbroek, Sebastiaan


    Many media are commercially available for culturing pre-implantation human embryos in assisted reproductive technology (ART) cycles. It is unknown which culture medium leads to the best success rates after ART. To evaluate the safety and effectiveness of different human pre-implantation embryo culture media in used for in vitro fertilisation (IVF) and intracytoplasmic sperm injection (ICSI) cycles. We searched the Cochrane Menstrual Disorders and Subfertility Group's Trials Register, Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE, the National Research Register, the Medical Research Council's Clinical Trials Register and the NHS Center for Reviews and Dissemination databases from January 1985 to March 2015. We also examined the reference lists of all known primary studies, review articles, citation lists of relevant publications and abstracts of major scientific meetings. We included all randomised controlled trials which randomised women, oocytes or embryos and compared any two commercially available culture media for human pre-implantation embryos in an IVF or ICSI programme. Two review authors independently selected the studies, assessed their risk of bias and extracted data. We sought additional information from the authors if necessary. We assessed the quality of the evidence using Grades of Recommendation, Assessment, Development and Evaluation (GRADE) methods. The primary review outcome was live birth or ongoing pregnancy. We included 32 studies in this review. Seventeen studies randomised women (total 3666), three randomised cycles (total 1018) and twelve randomised oocytes (over 15,230). It was not possible to pool any of the data because each study compared different culture media.Only seven studies reported live birth or ongoing pregnancy. Four of these studies found no evidence of a difference between the media compared, for either day three or day five embryo transfer. The data from the fifth study did not appear reliable

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

    KAUST Repository

    Ng, K. C.


    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.

  10. 29 CFR 29.13 - Recognition of State Apprenticeship Agencies. (United States)


    ... economic development strategies and publicly-funded workforce investment system; and (5) The State... to promote equality of opportunity in apprenticeship programs pursuant to a State Plan for Equal...

  11. Effectiveness of human menopausal gonadotropin versus recombinant follicle-stimulating hormone for controlled ovarian hyperstimulation in assisted reproductive cycles: a meta-analysis

    NARCIS (Netherlands)

    van Wely, Madelon; Westergaard, Lars G.; Bossuyt, Patrick M. M.; van der Veen, Fulco


    Objective: To compare the effectiveness of hMG and recombinant FSH after down-regulation for ovulation stimulation in assisted reproductive cycles. Design: Meta-analysis. Setting: Infertility centers providing assisted reproductive techniques. Patient(s): Two thousand thirty women undergoing IVF or

  12. Apprenticeships at CERN: a host of awards

    CERN Multimedia


    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...

  13. Apprenticeships: When schooling means more than doing

    Directory of Open Access Journals (Sweden)

    Carlo RICCI


    Full Text Available This paper is theoretically grounded in an educational movement known as unschooling. Unschooling is a learner centered democratic approach to education. Jerry Mintz (2004 defines learner-centered education as "an approach that is based on the interest of the student rather than curriculum driven, where someone else has the idea of what you ought to be learning," and he defines democratic education as "education where students are actually empowered to make decisions about their own education and if they are in a school their own school." This paper is about apprenticeship programs and how schooling and paper certificates have become more important in determining if someone can do a particular job than them actually doing it.

  14. CERN's technical apprentices during their apprenticeships

    CERN Multimedia

    Adrian Billet


    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.

  15. Functional electrical stimulation assisted cycling of patients with subacute stroke: kinetic and kinematic analysis. (United States)

    Szecsi, J; Krewer, C; Müller, F; Straube, A


    Cycling is a safe and functionally effective exercise for patients with early post-stroke and poor balance. Such exercise is considered even more effective when functional electrical stimulation is added. Our principal aim was to determine the biomechanically quantifiable parameters of cycling that can be improved in patients with subacute hemiparesis by incorporating functional electrical stimulation. These parameters were defined as objective goals that can be achieved in clinical applications. A secondary aim was to determine whether they could be used to identify subjects who would benefit from such therapy. Using a tricycle testbed, we tested 39 subacute (mean 10.9 weeks post-stroke (SD 5.9)), hemiplegic subjects. During isometric measurements we recorded volitional and electrically evoked crank torques, the latter at maximal tolerable intensity. During ergometric measurements, volitional pedaling was alternated with combined pedaling (volitional supported by stimulation), performed at 30-s intervals. Power, smoothness, and symmetry of cycling were evaluated. Twenty-six percent of the subjects significantly improved the smoothness of their cycling with functional electrical stimulation. Only 8% and 10% significantly increased their power and symmetry, respectively. The improvement in smoothness significantly correlated with the capability of the individual to generate electrical torque (Spearman's rank correlation coefficient=0.66 at P=0.001). The smoothness of cycling was the most sensitive parameter improved by functional electrical stimulation. This improvement depended on the amount of torque evoked, and the torque achieved, in turn, correlated with the tolerated intensity of stimulation.

  16. Computer modeling of a regenerative solar-assisted Rankine power cycle (United States)

    Lansing, F. L.


    A detailed interpretation of the computer program that describes the performance of one of these cycles; namely, a regenerative Rankine power cycle is presented. Water is used as the working medium throughout the cycle. The solar energy collected at relatively low temperature level presents 75 to 80% of the total heat demand and provides mainly the latent heat of vaporization. Another energy source at high temperature level superheats the steam and supplements the solar energy share. A program summary and a numerical example showing the sequency of computations are included. The outcome from the model comprises line temperatures, component heat rates, specific steam consumption, percentage of solar energy contribution, and the overall thermal efficiency.

  17. Life cycle assessment of facile microwave-assisted zinc oxide (ZnO) nanostructures

    CSIR Research Space (South Africa)

    Papadaki, D


    Full Text Available The life cycle assessment of several zinc oxide (ZnO) nanostructures, fabricated by a facile microwave technique, is presented. Key synthesis parameters such as annealing temperature, varied from 90 °C to 220 °C, and microwave power, varied from 110...

  18. The feasibility of training with FES-assisted cycling: Psychological, physical and physiological consideration


    Fattal, Charles; Sijobert, Benoît; Daubigney, Anne; Lucas, Brigitte; Azevedo Coste, Christine


    International audience; Objective The literature contains considerable data showing that such programs are crucial to reduce the consequences of physical inactivity of people with SCI. The objective of the study was to assess the physical, psychological, functional and financial feasibility of training a paraplegic subject on a FES-assisted recumbent bike – initially fixed on a stationary stand and then over open terrain. At the end of a 12-month training, the patient was invited to participa...

  19. Finding an apprenticeship: hidden curriculum and social consequences. (United States)

    Goastellec, Gaële; Ruiz, Guillaume


    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

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

    Directory of Open Access Journals (Sweden)

    Gaele eGoastellec


    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

  1. Pre-Apprenticeships in Australia: Differing Orientations and Their Policy Implications (United States)

    Dumbrell, Tom; Smith, Erica


    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. 77 FR 39516 - Notice of a Public Meeting of the Advisory Committee on Apprenticeship (ACA) (United States)


    ... Employment and Training Administration Notice of a Public Meeting of the Advisory Committee on Apprenticeship.... 1), notice is hereby given to announce an open meeting of the Advisory Committee on Apprenticeship..., Administrator, Office of Apprenticeship, Employment and Training Administration, U.S. Department of Labor, 200...

  3. 76 FR 52991 - Notice of an Open Meeting of the Advisory Committee on Apprenticeship (ACA) (United States)


    ... Employment and Training Administration Notice of an Open Meeting of the Advisory Committee on Apprenticeship...), notice is hereby given to announce an open meeting of the Advisory Committee on Apprenticeship (ACA... CONTACT: The Designated Federal Official, Mr. John V. Ladd, Administrator, Office of Apprenticeship, ETA...

  4. 78 FR 2445 - Notice of Intent To Renew the Advisory Committee on Apprenticeship (ACA) Charter (United States)


    ... Employment and Training Administration Notice of Intent To Renew the Advisory Committee on Apprenticeship... committee on apprenticeship is necessary and in the public interest. The Department of Labor intends to..., 2013. SUPPLEMENTARY INFORMATION: Registered Apprenticeship is a unique public private partnership that...

  5. 76 FR 60534 - Comment Request for Information Collection; Apprenticeship Programs, Labor Standards for... (United States)


    ... Employment and Training Administration Comment Request for Information Collection; Apprenticeship Programs..., Apprenticeship Programs, Labor Standards for Registration with an expiration date of January 31, 2012. A copy of... to John V. Ladd, Administrator, Office of Apprenticeship, Room N-5311 Employment and Training...

  6. 75 FR 79418 - Notice of an Open Meeting of the Advisory Committee on Apprenticeship (ACA) (United States)


    ... Employment and Training Administration Notice of an Open Meeting of the Advisory Committee on Apprenticeship... hereby given to announce an open meeting of the Advisory Committee on Apprenticeship (ACA) being held on..., Office of Apprenticeship, ETA, U.S. Department of Labor, 200 Constitution Avenue, NW., Room N-5311...

  7. 77 FR 70833 - Comment Request for Information Collection, Equal Employment Opportunity in Apprenticeship and... (United States)


    ... Opportunity in Apprenticeship and Training, Extension Without Revisions AGENCY: Employment and Training... collection of data about Title 29 CFR Part 30, Equal Employment Opportunity in Apprenticeship and Training, Complaint Form--Equal Employment Opportunity In Apprenticeship Programs, ETA-9039 which expires on February...

  8. 76 FR 5404 - Notice of Renewal of the Advisory Committee on Apprenticeship (ACA) Charter (United States)


    ... Employment and Training Administration Notice of Renewal of the Advisory Committee on Apprenticeship (ACA... apprenticeship is necessary and in the public interest. The Department of Labor will renew the ACA Charter with... Apprenticeship is a unique public-private partnership that is highly dependent on the engagement and involvement...

  9. 76 FR 67559 - Proposed Information Collection (Monthly Certification of On-the-Job and Apprenticeship Training... (United States)


    ... AFFAIRS Proposed Information Collection (Monthly Certification of On-the- Job and Apprenticeship Training.... Title: Monthly Certification of On-the-Job and Apprenticeship Training, VA Forms 22-6553d and 22-6553d-1...: Claimants receiving on the job and apprenticeship training complete VA Form 22-6553d to report the number of...

  10. 77 FR 2351 - Agency Information Collection (Monthly Certification of On-the-Job and Apprenticeship Training... (United States)


    ... AFFAIRS Agency Information Collection (Monthly Certification of On-the- Job and Apprenticeship Training... currently approved collection. Abstract: Claimants receiving on the job and apprenticeship training complete.... 2900-0178.'' SUPPLEMENTARY INFORMATION: Title: Monthly Certification of On-the-Job and Apprenticeship...

  11. Counting the Cost, Reconciling the Benefits: Understanding Employer Investment in Higher Apprenticeships in Accounting (United States)

    Gambin, Lynn; Hogarth, Terence


    Lack of progression to higher education amongst those who complete an Advanced Apprenticeship in England and the country's need for higher level skills led to the introduction of Higher Apprenticeships in 2009. Whilst Higher Apprenticeships would be expected to facilitate learner progression, the volume of these has remained low. In this paper,…

  12. Submaximal cardiopulmonary thresholds on a robotics-assisted tilt table, a cycle and a treadmill: a comparative analysis. (United States)

    Saengsuwan, Jittima; Nef, Tobias; Laubacher, Marco; Hunt, Kenneth J


    The robotics-assisted tilt table (RATT), including actuators for tilting and cyclical leg movement, is used for rehabilitation of severely disabled neurological patients. Following further engineering development of the system, i.e. the addition of force sensors and visual bio-feedback, patients can actively participate in exercise testing and training on the device. Peak cardiopulmonary performance parameters were previously investigated, but it also important to compare submaximal parameters with standard devices. The aim of this study was to evaluate the feasibility of the RATT for estimation of submaximal exercise thresholds by comparison with a cycle ergometer and a treadmill. 17 healthy subjects randomly performed six maximal individualized incremental exercise tests, with two tests on each of the three exercise modalities. The ventilatory anaerobic threshold (VAT) and respiratory compensation point (RCP) were determined from breath-by-breath data. VAT and RCP on the RATT were lower than the cycle ergometer and the treadmill: oxygen uptake (V'O2) at VAT was [mean (SD)] 1.2 (0.3), 1.5 (0.4) and 1.6 (0.5) L/min, respectively (p < 0.001); V'O2 at RCP was 1.7 (0.4), 2.3 (0.8) and 2.6 (0.9) L/min, respectively (p = 0.001). High correlations for VAT and RCP were found between the RATT vs the cycle ergometer and RATT vs the treadmill (R on the range 0.69-0.80). VAT and RCP demonstrated excellent test-retest reliability for all three devices (ICC from 0.81 to 0.98). Mean differences between the test and retest values on each device were close to zero. The ventilatory equivalent for O2 at VAT for the RATT and cycle ergometer were similar and both were higher than the treadmill. The ventilatory equivalent for CO2 at RCP was similar for all devices. Ventilatory equivalent parameters demonstrated fair-to-excellent reliability and repeatability. It is feasible to use the RATT for estimation of submaximal exercise thresholds: VAT and RCP on the RATT were lower than the

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

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


    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. Copyright © 2015 Elsevier Ltd. All rights reserved.

  14. Antimüllerian hormone as a predictor of live birth following assisted reproduction: an analysis of 85,062 fresh and thawed cycles from the Society for Assisted Reproductive Technology Clinic Outcome Reporting System database for 2012-2013. (United States)

    Tal, Reshef; Seifer, David B; Wantman, Ethan; Baker, Valerie; Tal, Oded


    To determine if serum antimüllerian hormone (AMH) is associated with and/or predictive of live birth assisted reproductive technology (ART) outcomes. Retrospective analysis of Society for Assisted Reproductive Technology Clinic Outcome Reporting System database from 2012 to 2013. Not applicable. A total of 69,336 (81.8%) fresh and 15,458 (18.2%) frozen embryo transfer (FET) cycles with AMH values. None. Live birth. A total of 85,062 out of 259,499 (32.7%) fresh and frozen-thawed autologous non-preimplantation genetic diagnosis cycles had AMH reported for cycles over this 2-year period. Of those, 70,565 cycles which had embryo transfers were included in the analysis. Serum AMH was significantly associated with live birth outcome per transfer in both fresh and FET cycles. Multiple logistic regression demonstrated that AMH is an independent predictor of live birth in fresh transfer cycles and FET cycles when controlling for age, body mass index, race, day of transfer, and number of embryos transferred. Receiver operating characteristic (ROC) curves demonstrated that the areas under the curve (AUC) for AMH as predictors of live birth in fresh cycles and thawed cycles were 0.631 and 0.540, respectively, suggesting that AMH alone is a weak independent predictor of live birth after ART. Similar ROC curves were obtained also when elective single-embryo transfer (eSET) cycles were analyzed separately in either fresh (AUC 0.655) or FET (AUC 0.533) cycles, although AMH was not found to be an independent predictor in eSET cycles. AMH is a poor independent predictor of live birth outcome in either fresh or frozen embryo transfer for both eSET and non-SET transfers. Copyright © 2017 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

  15. From apprenticeship to higher vocational education in Denmark

    DEFF Research Database (Denmark)

    Jørgensen, Christian Helms


    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...... policy problem in Denmark. Secondly, it explores political initiatives taken to ‘build bridges’ to higher education. Thirdly, it examines the development of technical higher vocational education, which has been a main destination for the former apprentices. Lastly, it examines changes in the transition...


    Directory of Open Access Journals (Sweden)

    Wioleta Stępień


    Full Text Available The thesis has evaluated the impact of the composition of the compost mixture containing sewage sludge, grass and organic fraction of municipal waste, on the effectiveness of the composting process as well as the influence of the obtained composts on the effectiveness of soil phytoremediation. In the first stage, the composting process was carried out and in the second stage of the research, a pot experiment was conducted and the soil supplements were gradually applied, then their influence on the process of degraded soil renourishment was evaluated. During the research, the physical and chemical properties of the soils after the use of resources such as compost and bio-fertilizer gained from the processing of sewage sludge during the process of assisted phytoremediation of highly degraded soil (high content of heavy metals were assessed. The composting process was carried out in two stages, the first of which lasted for four weeks and was carried out in a closed bioreactor with a flow of added oxygen. The second stage, on the other hand, included so-called ripening. This process lasted for six weeks and it also included the flow of added oxygen. By the end of the process, both mixtures were characterized by high content of nutrients and low content of heavy metals which qualified them to be used in the process of renourishment of degraded soils. The conducted research confirms the possibility of using the obtained composts for fertilization. Moreover, the granulate obtained from the processing of the sewage sludge showed positive influence on the examined soil. All of the supplements increased the increment of the obtained biomass, introducing the missing nutrients into the soil.

  17. Reporting in vitro fertilization cycles to the Society for Assisted Reproductive Technology database: where have all the cycles gone? (United States)

    Kulak, David; Jindal, Sangita K; Oh, Cheongeun; Morelli, Sara S; Kratka, Scott; McGovern, Peter G


    To assess the relationship between live birth rates (LBRs) and the incidence of under-reported cycles by IVF clinics. Cohort study. Not applicable. All patients undergoing IVF cycles in the aforementioned clinics. Not applicable. The reporting percentage (RP), defined as number of cycles with reported pregnancy rates divided by total cycles performed. Results from cryopreservation cycles are only presented by SART if an embryo transfer occurs. Thus, RP decreases as incidence of embryo or oocyte banking cycles increases. The LBRs in women aged Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

  18. Welding. Pre-Apprenticeship Phase 1 Training. Instructor's Guide. (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…

  19. Higher Apprenticeships and the Shaping of Vocational Knowledge (United States)

    Hordern, Jim


    Higher apprenticeships are celebrated in current policy discourses as an alternative to traditional higher education, with the claim that they will prepare higher apprentices for their future careers and enhance industrial productivity through higher skill levels. This paper aims to scrutinise these claims using notions developed by Bernstein and…

  20. From Apprenticeship to Higher Education: Navigating the Credential Landscape (United States)

    Dismore, Harriet


    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,…

  1. Implementing Non-formal, Skills and Apprenticeship Training ...

    African Journals Online (AJOL)

    The paper discusses both the existing indigenous technological and modern institlltions and their importance in the implementation of the apprenticeship aspect of the Universal Basic Education (UBE) progrmme. The indigenous technological institlltions include potlery, spinning and weaving, leather work, sculpture, tying ...

  2. Learning Object-Orientation through ICT-mediated Apprenticeship

    DEFF Research Database (Denmark)

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


    -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...

  3. Teacher Education Pedagogy: Disrupting the Apprenticeship of Observation (United States)

    Westrick, Jan M.; Morris, Gary A.


    Teacher educators are challenged to enact a pedagogy that helps facilitate conceptual transitions in preservice teachers away from the naïve notions formed during their long apprenticeships of observation. This study examines one "educative experience purposefully embedded in meaningful pedagogical experiences" using the three-level…

  4. Students' Perceptions of Online Apprenticeship Projects at a University (United States)

    Kikuchi, Hisayo


    The purpose of this study is to examine the impact of a hybrid apprenticeship model in the context of university level English education in Japan. The focus is on freshman perceptions and attitudes toward their English learning. For this study, seniors were asked to create brief videos in English sharing study strategies, helpful student life…

  5. Advanced Entry Adult Apprenticeship Training Scheme: A Case Study (United States)

    Sparks, Alan; Ingram, Hadyn; Phillips, Sunny


    Purpose: The purpose of this paper is to evaluate an innovative way to train adult apprentices for the construction industry. Design/methodology/approach: The paper emphasizes that, in order to address skills shortages for international construction, training methods must be improved. It looks at the example of an adult apprenticeship scheme in…

  6. Apprenticeship Bullying in the Building and Construction Industry (United States)

    Riggall, Michaela; Skues, Jason; Wise, Lisa


    Purpose: The purpose of this paper is to explore the definition, prevalence, antecedents, consequences and coping behaviours associated with apprenticeship bullying in the building and construction industry. Design/methodology/approach: The sample comprises 13 participants aged between 22 and 27 (M = 23.8, SD = 1.26) who were all men who had…

  7. The National Farm Worker Ministry as Freirian Apprenticeship (United States)

    Nilsen, Ryan


    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…

  8. Creating the Social Foundations for Apprenticeship in Ireland (United States)

    Nyhan, Barry; Ayres, Paul


    Purpose: The purpose of this paper is to discuss Irelands national apprenticeship programme, introduced in 1993, in the context of the country's evolving economic and social policies. Design/methodology/approach: A critical analysis is undertaken of the industrial climate in Ireland, which prevented the introduction of a national apprenticeship…

  9. Crane and Hoisting Equipment Operator Boom Truck Operator: Apprenticeship Course Outline. Apprenticeship and Industry Training. 34-305.2 (United States)

    Alberta Advanced Education and Technology, 2005


    The graduate of the Crane and Hoisting Equipment Operator Boom Truck Operator apprenticeship program is a certified journeyperson who will be able to: (1) responsibly do all work tasks expected of a journeyperson; (2) correctly use and care for tools and materials which are required to carry out the normal service and maintenance of the machines…

  10. Remifentanil versus Fentanyl for Assisted Reproductive Technologies:Effect on Hemodynamic Recovery from Anesthesia and Outcome of ART Cycles

    Directory of Open Access Journals (Sweden)

    Mohammad Hossein Jarahzadeh


    Full Text Available Background: We conducted this study to compare the outcome of assisted reproductive technology(ART procedures and recovery from anesthesia in women who received opioid analgesia withremifentanil versus fentanyl.Materials and Methods: This double-blind, randomized clinical trial was carried out inthe Yazd Research and Clinical Center for Infertility, Yazd, Iran. We studied 145 womenwho were participants in an ART program. During the first phase of the study, all patientsunderwent induction of anesthesia with thiopental and received analgesia with remifentanilor fentanyl. The primary endpoint was pregnancy rate per transfer. The numbers of oocytescollected, fertilized and cleaved were recorded, as was the number of oocytes transferredand recovery profile. In the second phase of the study, all patients were followed foroutcome of ART cycle.Results: This study suggested that in women undergoing transvaginal ultrasound-guided oocyteretrieval procedures, the likelihood of a successful pregnancy was higher with a remifentanil-basedmonitored anesthesia care (MAC technique than with a fentanyl-based MAC technique. Therecovery from anesthesia was significantly better in the remifentanil group versus fentanyl group.Conclusion: The results of this study suggest that remifentanil in clinical practice is superior tofentanyl (Registeration Number: IRCT201009283468N3.

  11. The Forgotten Half: Two-Thirds: An Hispanic Perspective on Apprenticeship, European Style. Report of the National Council of La Raza Consultation on Apprenticeship. (United States)

    McKay, Emily Gantz

    A Hispanic-based consultation on European-style apprenticeships was undertaken to add a Hispanic perspective to the current policy debate about apprenticeships as a school-to-work transition option providing effective career preparation for non-college bound American youth. In March 1992, a delegation of 10 specialists in Hispanic education and…

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

    Directory of Open Access Journals (Sweden)

    Ingela Andersson


    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.

  13. Integrating a professional apprenticeship model with psychiatric clinical simulation. (United States)

    Crider, Mark C; McNiesh, Susan G


    In this article, we present a theory-based application of clinical simulation in psychiatric-mental health nursing education. As described by Benner, Sutphen, Leonard, and Day, a three-pronged apprenticeship that integrates intellectual, practical, and ethical aspects of the professional role is critical in the development of practical reasoning in nursing education and training. Clinical encounters are often fraught with ambiguity and uncertainty. Therefore, educating for a practice discipline requires experiential and situated learning. Using the three-pronged experiential model in simulated psychiatric-mental health nursing practice supports the development of critical nursing skills, ethics, and theoretical concepts. A clinical scenario is presented that demonstrates the application of this model of professional apprenticeship in psychiatric-mental health education. Applications of the concept presented may be used in training nurses new to the practice of psychiatric-mental health nursing. Copyright 2011, SLACK Incorporated.

  14. Industrial Education in the Middle Ages: Apprenticeship in the Wool Textile Industry in Thirteenth-Century Paris. (United States)

    Pannabecker, John R.


    A study of 13th-century industrial regulations in Paris shows how medieval apprenticeships in the textile industry functioned. The investigation interprets wool industry apprenticeship in the context of the production system and the social environment. (SK)

  15. Advanced psychotherapy training: psychotherapy scholars' track, and the apprenticeship model. (United States)

    Feinstein, Robert E; Yager, Joel


    Guided by ACGME's requirements, psychiatric residency training in psychotherapy currently focuses on teaching school-specific forms of psychotherapy (i.e., cognitive-behavioral, supportive, and psychodynamic psychotherapy). On the basis of a literature review of common factors affecting psychotherapy outcomes and experience with empirically supported and traditional psychotherapies, the authors aimed to develop an advanced contemporary and pragmatic approach to psychotherapy training for eight residents (two per PGY year) enrolled in a specialized Psychotherapy Scholars' Track within an adult general-residency program. The authors developed core principles and clinical practices, and drafted year-by-year educational goals and objectives to teach the psychotherapy scholars. Based on experiential learning principles, we also developed an individualized form of psychotherapy training, which we call "The Apprenticeship Model." The Psychotherapy Scholars' Track, and "Apprenticeship Model" of training are now in their third year. To date, authors report that scholars are highly satisfied with the structure and curriculum in the track. Trainees appreciate the protected time for self-directed study, mentored scholarship, and psychotherapy rotations. Patients and the Psychotherapy Scholars experience the "Apprenticeship Model" of psychotherapy training as authentic and compatible with their needs and resources. The Psychotherapy Scholars' Track developed and piloted in our general psychiatry residency is based on common factors, empirically-supported treatments, and use of experiential learning principles. Whether the Psychotherapy Scholars' Track and "Apprenticeship Model" will ultimately increase residents' psychotherapy skills and positively affect their ability to sustain postgraduate psychotherapy practice in varied settings requires long-term evaluation. The developers welcome empirical testing of the comparative effectiveness of this psychotherapy teaching approach

  16. The Apprenticeship Model for Surgical Training Is Inferior. (United States)

    Lubowitz, James H; Provencher, Matthew T; Brand, Jefferson C; Rossi, Michael J


    While the apprenticeship model for surgical training is a long-standing gold standard worldwide, proficiency-based progression (PBP) training proves significantly superior. The combination of a metrics tool describing procedural steps and errors with a simulator model or cadaveric training, results in a measurement tool that not only judges but serves to improve surgeon skill. Copyright © 2015 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.

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

    Directory of Open Access Journals (Sweden)

    Gabriella Dodero


    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.

  18. The Prevalence of Apprenticeships in Germany and the United States


    Lazaryan, Nika; Neelakantan, Urvi; Price, David A.


    The educational systems and labor markets of Germany and the United States take different approaches to preparing young people for the workforce. One feature of Germany's workforce development model that has been of interest to policymakers in the United States is the important role played by employer-financed apprenticeships. The United States instead relies mainly on comprehensive general education, with career training largely taking place in community colleges and other postsecondary inst...

  19. The wounding path to becoming healers: medical students' apprenticeship experiences. (United States)

    Allen, Dawn; Wainwright, Megan; Mount, Balfour; Hutchinson, Tom


    This article responds to repeated calls in the literature to teach medical students how to treat the whole patient, not just the disease. It focuses on the educational experiences of medical students in a Canadian university in an effort to clarify the determinants of "caring" in medical education. Nineteen (19) second-year medical students volunteered to keep weekly journal entries during the first five months of their medical apprenticeship. In journal entry analyses, the authors identified themes through a consensus-building coding process detailed in the work of Maykut and Morehouse (1994) and Huckin (2004). For this article, the authors focus on those themes most closely related to the students' caring experiences during their apprenticeship. The data highlight components of the medical system which made it difficult for students to engage in caring practices during their apprenticeship: the competing discourses of empathy and efficiency, the objectification of patients, the power of the medical hierarchy, and the institutionalized practice of wounding. The authors argue that returning medical care and students' experience to a balance of attention to curing and caring is a complex undertaking requiring a re-conceptualization of the process and goals of medical care.

  20. Attempting Institutional Change: Swedish Apprenticeship, 1890–1917

    Directory of Open Access Journals (Sweden)

    Sandra Hellstrand


    Full Text Available Sweden never got an apprentice law after apprenticeship was de-regulated in 1864. This has been attributed to unified opposition to legislation from industry employers and trade unions, with the craft employers as the only advocates. Analysing the pattern of agreement and disagreement in the political struggle over apprenticeship in the Swedish case in 1890–1917, it is clear that opposition was not that uniform, nor was the support from the craft employers that undivided. This article makes use of Kathleen Thelen’s model of institutional change in order to shed new light on the developments in Sweden. The model states that any apprentice law requires a coalition of two or more out of the state, the crafts and the metalworking industries – divided into employers and workers. Legislation, in turn, is a near requirement for the survival of strong apprenticeship. In this article the Swedish case will be discussed in relation to two of Thelen’s cases, Germany and Great Britain. In Germany an apprentice law was passed in 1897, while in Great Britain no modern apprentice law was ever passed. Similarities can be found between both of these cases and the Swedish case.

  1. Apprenticeship — The perilous journey from Germany to Togo (United States)

    Kempner, Ken; de Moura Castro, Claudio; Bas, Daniel


    This paper explores the economic and cultural reasons why apprenticeship programmes imported by developing countries typically fail. The authors pursue this inquiry in a comparative manner by addressing experiences in Western Africa and by drawing on the outcomes of apprentice programmes in some industrialised countries. The authors identify major issues that explain why programmes borrowed from the West are so ineffective in Africa. Essentially, the imported apprenticeship programmes are decidedly Western and white concepts that link education to employment through certification and individual ownership of knowledge, and that clash with African cultural traditions. Individual success is central to Western-based programmes, which is opposed to more community-based conceptions of traditional African culture. Because of this inherent mismatch, the authors conclude with several options for developing apprenticeship training in Africa that are more relevant and adaptable to the prevailing cultural, educational and economic climate. They encourage programmes that improve the educational system incrementally and caution against programmes that run counter to the predominant culture.

  2. 75 FR 57819 - Notice of Revision; Notice of the Advisory Committee on Apprenticeship (ACA) Open Meeting and New... (United States)


    ... Employment and Training Administration Notice of Revision; Notice of the Advisory Committee on Apprenticeship... announcing an Open Meeting of the Advisory Committee on Apprenticeship (ACA) and identifying the members of... of the Advisory Committee on Apprenticeship (ACA)'' which may have inadvertently confused the...

  3. 75 FR 10505 - Office of Apprenticeship, Notice of Town Hall Meeting on Federal Regulations for Equal Employment... (United States)


    ... Employment and Training Administration Office of Apprenticeship, Notice of Town Hall Meeting on Federal Regulations for Equal Employment Opportunity in Apprenticeship and Training AGENCY: Employment and Training...'s (ETA) Office of Apprenticeship (OA), U.S. Department of Labor (DOL), is giving notice of three...

  4. 29 CFR 2520.104-22 - Exemption from reporting and disclosure requirements for apprenticeship and training plans. (United States)


    ... apprenticeship and training plans. 2520.104-22 Section 2520.104-22 Labor Regulations Relating to Labor (Continued... disclosure requirements for apprenticeship and training plans. (a) An employee welfare benefit plan that provides exclusively apprenticeship training benefits or other training benefits or that provides...

  5. Training through Apprenticeship--The Singapore System. An APEC-HURDIT Network Project. (United States)

    Sam, Sui Chee

    The Institute of Technical Education (ITE) in Singapore provides skills training to school leavers through the institutional training and apprenticeship modes. The strengths of apprenticeship training are: provision of more occupational choices; greater effectiveness in meeting specific needs of industries; and opportunities for young people to…

  6. National Apprenticeship and Training Standards for Optical Technician (Contact Lens Technician). (United States)

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

    A statement of policy of the Contact Lens Society of America regarding contact lens filters is followed by national apprenticeship and training standards for optical technicians approved and adopted by the Contact Lens Society of America in accordance with the basic standards recommended by the Bureau of Apprenticeship and Training of the…

  7. National Apprenticeship and Training Standards for Optical Technician (Contact Lens Technician). Revised. (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 optical technicians (contact lens technicians). Covered in the individual sections are the following topics: definitions, qualifications for apprenticeship, credit for previous experience, continuity…

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

  9. Rates of Return to Apprenticeship in the Metal Industry, 1955-1990. (United States)

    McGuire, Paul


    Using human capital theory, rate of return from apprenticeships in the metal industry was estimated. Findings showed a sharp increase in apprentice wages in the 1960s-70s contributed to declining apprenticeship opportunities. Significant declines in wages since then suggest that apprentices and government now bear a higher proportion of training…

  10. Skill Acquisition through Indigenous Apprenticeship: A Case Study of the Yoruba Blacksmith in Nigeria. (United States)

    Obidi, S. S.


    Data from interviews with 55 elderly Yoruba blacksmiths depict the experiences and practices of traditional apprenticeships before the advent of modern schooling in Nigeria. Discusses applications of the apprenticeship model within elementary and secondary schooling as a means of providing socially necessary, community regulated, and effective…

  11. Future Apprenticeships in England: The Role of Mediation in the New Model (United States)

    Hodgson, Ann; Spours, Ken; Smith, David


    Apprenticeship systems across the globe are having to adapt to changing international economic and social trends. England is no exception. This article examines the latest model of apprenticeship in England from the perspective of the "mediators" who work at local and regional level with employers to construct and deliver the majority of…

  12. Apprenticeship for "Liquid Life": Learning in Contingent Work Conditions for Contingent Employment (United States)

    Guile, David; Lahiff, Ann


    Taking the distinction between the Institution of Apprenticeship, that is, the social partnership arrangements which underpin its organisation, and Apprenticeship as a Social Model of Learning, in other words, the configuration of pedagogic and occupational etc. dimensions which constitute the model, as its starting point the paper: (i) argues the…

  13. A Solid Foundation: Key Capacities of Construction Pre-Apprenticeship Programs (United States)

    Helmer, Matt; Blair, Amy; Gerber, Allison


    This publication shares research from site visits conducted to construction pre-apprenticeship programs in Baltimore, Hartford, Milwaukee and Portland (OR). Findings from the site visits, which included interviews and focus groups with pre-apprenticeship program staff, public officials, philanthropic leaders, construction industry leaders and…

  14. "Give Courage to the Ladies:" Expansive Apprenticeship for Women in Rural Malawi (United States)

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


    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…

  15. Plus C'est La Même Chose: Joinery Apprenticeship Arrangements in Scotland (United States)

    Anderson, Pauline


    This paper examines recent changes in the Scottish apprenticeship system of skill formation for joiners through an occupational skill ecosystem lens. Building trade apprenticeships in Scotland are based around a social partnership model more akin to "dual systems" than typical arrangements elsewhere in the UK. Drawing on in-depth…

  16. "Go West Young Man!" Youth Apprenticeship and Opportunity Structures in Two Canadian Provinces (United States)

    Lehmann, Wolfgang; Taylor, Alison; Hamm, Zane


    Most Canadian provinces offer high-school apprenticeships to facilitate students' transitions to skilled work and address employers' concerns about labour shortages. Using interview data with graduates from high-school apprenticeships in Alberta and Ontario, we analyse the impact participation in these programmes has had on their educational and…

  17. 75 FR 78807 - Agency Information Collection (Other On-The-Job Training and Apprenticeship Training Agreement... (United States)


    ... 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: Veterans...: a. Other On-The-Job Training and Apprenticeship Training Agreement and Standards, (Training Programs...

  18. From Apprenticeships to Higher Vocational Education in Denmark--Building Bridges While the Gap Is Widening (United States)

    Jørgensen, Christian Helms


    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 education. The purpose of this article is to…

  19. Apprenticeship, Vocational Training, and Early Labor Market Outcomes--Evidence from East and West Germany (United States)

    Riphahn, Regina T.; Zibrowius, Michael


    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…

  20. The Role of Materiality in Apprenticeships: The Case of the Suame Magazine, Kumasi, Ghana (United States)

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


    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…

  1. Acute Bouts of Assisted Cycling Improves Cognitive and Upper Extremity Movement Functions in Adolescents with Down Syndrome (United States)

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


    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…

  2. Is Vacation Apprenticeship of Undergraduate Life Science Students a Model for Human Capacity Development in the Life Sciences? (United States)

    Thelma Downs, Colleen


    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 2005 to 2007. This was to develop their skills and interests in the biological sciences, particularly in biocontrol and entomology. Results suggest that this "grassroots" approach increased the number of Black and female students in the life sciences. In particular, it developed their knowledge of the discipline of science and of how it progresses. For most students it enthused and motivated them in the pursuit of their studies and in considering postgraduate research. Students benefited socially from the interactions with researchers and staff, and learnt the protocols of research institutions. Economically most students benefited as they had financial loans for their studies, and the additional monies assisted them in meeting some of the payments. It is proposed that this undergraduate apprenticeship be used as a model for human capacity development at an undergraduate level that can be adopted in the other sciences and universities. This provides an alternative to the current South African National Research Foundation model, a top-down approach, that is aimed at recruiting Black and female students at the postgraduate level.

  3. 38 CFR 21.7138 - Rates of supplemental educational assistance. (United States)


    ... assistance at the rate described in this section unless a lesser rate is required by § 21.7139 of this part. (a) Rates for veterans. (1) Except for a veteran pursuing apprenticeship or other on-job training... this table. Training Monthly rate Full time $300. 3/4 time 225. 1/2 time 150. Less than 1/2 but more...

  4. From Teaching Assistant (TA) Training to Workplace Learning (United States)

    Korpan, Cynthia


    In this paper, I propose a renewed look at how teaching assistants (TAs) are being prepared to fulfill their duties in higher education. I argue that the apprenticeship model of learning that is currently in use be replaced by the more holistic workplace learning approach. Workplace learning theories take into consideration the complexity of the…

  5. Evaluation of a new rapid readout biological indicator for use in 132°C and 135°C vacuum-assisted steam sterilization cycles. (United States)

    Schneider, Philip M


    Sterilization is a process that cannot be inspected or tested in a practical manner to assure that all microorganisms have been inactivated. The process must therefore be validated for all of the specific items processed or monitored on a per cycle basis. A new, faster rapid readout biological indicator (RRBI) has been developed for use in 132°C and 135°C vacuum-assisted steam sterilization cycles. The aim of this study was to evaluate the performance of this new 1-hour readout RRBI at 132°C in side-by-side testing with an existing 3-hour readout RRBI and also evaluate the performance of the new RRBI in 135°C cycles. Readout responses of 1 hour (fluorescent) and 48 hours and 7 days (growth) of the new RRBI were compared with 3-hour, 48-hour, and 7-day readouts of the 3-hour RRBI following exposures in 132°C cycles using a highly controlled test vessel, ie, a steam resistometer. Additional testing of the 1-hour RRBIs was also performed in 135°C cycles. The number and percentage of fluorescent-positive 1-hour RRBIs were virtually identical to those of the 3-hour RRBIs after 1 and 3 hours of incubation, respectively. Testing of the 1-hour RRBI in 135°C cycles paralleled the results of the testing at 132°C but with the expected shorter exposure times. The results of this study suggest that the 1-hour RRBI is equivalent to the 3-hour RRBI and would be suitable for use in monitoring dynamic air removal steam sterilization cycles at both 132°C and 135°C per recommended practice guidelines. Copyright © 2014 Association for Professionals in Infection Control and Epidemiology, Inc. Published by Mosby, Inc. All rights reserved.

  6. Diminished ovarian reserve in the United States assisted reproductive technology population: diagnostic trends among 181,536 cycles from the Society for Assisted Reproductive Technology Clinic Outcomes Reporting System. (United States)

    Devine, Kate; Mumford, Sunni L; Wu, Mae; DeCherney, Alan H; Hill, Micah J; Propst, Anthony


    To evaluate trends in diminished ovarian reserve (DOR) assignment in the Society for Assisted Reproductive Technology (SART) Clinic Outcomes Reporting System database and to evaluate its accuracy in predicting poor ovarian response (POR) as defined in European Society of Human Reproduction and Embryology's Bologna criteria (2011). Retrospective cohort study. Not applicable. A total of 181,536 fresh, autologous ART cycles reported to SART by U.S. clinics in 2004 and 2011 (earliest and most recent available reporting years). None. DOR assignment was the primary exposure. POR, defined as cycle cancellation for poor response or less than 4 oocytes retrieved after conventional gonadotropin stimulation (>149 IU FSH daily), was the primary outcome. Secondary outcomes were live birth and number of oocytes retrieved. DOR prevalence, power of DOR and FSH (Society for Reproductive Medicine. All rights reserved.

  7. Parish apprenticeship and the old poor law in London1 (United States)

    Levene, Alysa


    This article offers an examination of the patterns and motivations behind parish apprenticeship in late eighteenth- and early nineteenth-century London. It stresses continuity in outlook from parish officials binding children, which involved placements in both the traditional and industrializing sectors of the economy. Evidence on the ages, employment types, and locations of 3,285 pauper apprentices bound from different parts of London between 1767 and 1833 indicates a variety of local patterns. The analysis reveals a pattern of youthful age at binding, a range of employment experiences, and parish-specific links to particular trades and manufactures. PMID:20939134

  8. Parish apprenticeship and the old poor law in London. (United States)

    Levene, Alysa


    This article offers an examination of the patterns and motivations behind parish apprenticeship in late eighteenth- and early nineteenth-century London. It stresses continuity in outlook from parish officials binding children, which involved placements in both the traditional and industrializing sectors of the economy. Evidence on the ages, employment types, and locations of 3,285 pauper apprentices bound from different parts of London between 1767 and 1833 indicates a variety of local patterns. The analysis reveals a pattern of youthful age at binding, a range of employment experiences, and parish-specific links to particular trades and manufactures.

  9. Combinatorial algebraic geometry selected papers from the 2016 apprenticeship program

    CERN Document Server

    Sturmfels, Bernd


    This volume consolidates selected articles from the 2016 Apprenticeship Program at the Fields Institute, part of the larger program on Combinatorial Algebraic Geometry that ran from July through December of 2016. Written primarily by junior mathematicians, the articles cover a range of topics in combinatorial algebraic geometry including curves, surfaces, Grassmannians, convexity, abelian varieties, and moduli spaces. This book bridges the gap between graduate courses and cutting-edge research by connecting historical sources, computation, explicit examples, and new results.

  10. Pregnancy outcomes decline in recipients over age 44: an analysis of 27,959 fresh donor oocyte in vitro fertilization cycles from the Society for Assisted Reproductive Technology. (United States)

    Yeh, Jason S; Steward, Ryan G; Dude, Annie M; Shah, Anish A; Goldfarb, James M; Muasher, Suheil J


    To use a large and recent national registry to provide an updated report on the effect of recipient age on the outcome of donor oocyte in vitro fertilization (IVF) cycles. Retrospective cohort study. United States national registry for assisted reproductive technology. Recipients of donor oocyte treatment cycles between 2008 and 2010, with cycles segregated into five age cohorts: ≤34, 35 to 39, 40 to 44, 45 to 49, and ≥50 years. None. Implantation, clinical pregnancy, live-birth, and miscarriage rates. In donor oocyte IVF cycles, all age cohorts ≤39 years had similar rates of implantation, clinical pregnancy, and live birth when compared with the 40- to 44-year-old reference group. Patients in the two oldest age groups (45 to 49, ≥50 years) experienced statistically significantly lower rates of implantation, clinical pregnancy, and live birth compared with the reference group. Additionally, all outcomes in the ≥50-year-old group were statistically significantly worse than the 45- to 49-year-old group, demonstrating progressive decline with advancing age. Recent national registry data suggest that donor oocyte recipients have stable rates of pregnancy outcomes before age 45, after which there is a small but steady and significant decline. Copyright © 2014 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

  11. Supervisor and Student Co-Writing: An Apprenticeship Perspective

    Directory of Open Access Journals (Sweden)

    Charlotte Wegener


    Full Text Available This is a story about the creation of a co-authored research article. The purpose is to emphasize co-writing as a significant pedagogic practice within doctoral supervision. Regarding apprenticeship as a pedagogical methodology as well as a theoretical framework makes co-writing more than an output-driven technique for increasing productivity. Becoming a researcher requires intense involvement in real research, and it is difficult to teach somebody how to do it. It entails practice. This practice is presented by means of an e-mail correspondence between a doctoral student and her supervisor during the article production. These real-time reflections show that effective apprenticeship in this context is a matter of giving access to the practice of doing research, opening up the field and thereby providing direction. However, it is also a theoretical perspective concerned with adding materiality and real tasks to the relational space between supervisor and the novice researcher. URN:

  12. Pathology of apprenticeships for masters of nursing critical care. (United States)

    Ghaffari, Fatemeh; Nayeri, Nahid Dehghan; Norouzinezhad, Faezeh; Tayebi, Zahra


    The increasing complexity of patient care conditions in intensive care units, along with the development of these units, has increased the need for qualified nurses and health professionals. Therefore, due to recent changes and in response to the shortage of capable nurses, a master's major in intensive care nursing has been created. One of the main challenges of this curriculum is to ensure that graduates have the required competencies. The current study aimed to explain the pathology of apprenticeships for a masters in nursing critical care. This qualitative study was conducted for masters in nursing critical care students of Tehran University of Medical Sciences in 2014-2015. The sampling was purposeful. Data were collected through face-to-face interviews with 15 students. Conventional content analysis was used to analyze the data. Three categories "ineffective management, unfavorable context for achieving skills, and lack of clinical instructors and sufficient competence" were extracted. Preparing settings for entering students such as having an adequate training field and expert educators, providing conditions for orientation of educators and participation in the related workshops, and recruitment of experienced instructors in the apprenticeships field can increase the quality of MS levels.

  13. Apprenticeship-based training in neurogastroenterology and motility. (United States)

    Vasant, Dipesh H; Sharma, Amol; Bhagatwala, Jigar; Viswanathan, Lavanya; Rao, Satish S C


    Although neurogastroenterology and motility (NGM) disorders affect 50% of patients seen in clinics, many gastroenterologists receive limited NGM training. One-month apprenticeship-based NGM training has been provided at ten centers in the USA for a decade, however, outcomes of this training are unclear. Our goal was to describe the effectiveness of this program from a trainees perspective. Areas covered: We describe the training model, learning experiences, and outcomes of one-month apprenticeship-based training in NGM at a center of excellence, using a detailed individual observer account and data from 12 consecutive trainees that completed the program. During a one-month training period, 302 procedures including; breath tests (BT) n = 132, anorectal manometry (ARM) n = 29 and esophageal manometry (EM) n = 28, were performed. Post-training, all trainees (n = 12) knew indications for motility tests, and the majority achieved independence in basic interpretation of BT, EM and ARM. Additionally, in a multiple-choice NGM written-test paper, trainees achieved significant improvements in test scores post-training (P = 0.003). Expert commentary: One-month training at a high-volume center can facilitate rapid learning of NGM and the indications, basic interpretation and utility of motility tests. Trainees demonstrate significant independence, and this training model provides an ideal platform for those interested in sub-specialty NGM.

  14. Pathology of apprenticeships for masters of nursing critical care (United States)

    Ghaffari, Fatemeh; Nayeri, Nahid Dehghan; Norouzinezhad, Faezeh; Tayebi, Zahra


    Introduction The increasing complexity of patient care conditions in intensive care units, along with the development of these units, has increased the need for qualified nurses and health professionals. Therefore, due to recent changes and in response to the shortage of capable nurses, a master’s major in intensive care nursing has been created. One of the main challenges of this curriculum is to ensure that graduates have the required competencies. The current study aimed to explain the pathology of apprenticeships for a masters in nursing critical care. Methods This qualitative study was conducted for masters in nursing critical care students of Tehran University of Medical Sciences in 2014–2015. The sampling was purposeful. Data were collected through face-to-face interviews with 15 students. Conventional content analysis was used to analyze the data. Results Three categories “ineffective management, unfavorable context for achieving skills, and lack of clinical instructors and sufficient competence” were extracted. Conclusion Preparing settings for entering students such as having an adequate training field and expert educators, providing conditions for orientation of educators and participation in the related workshops, and recruitment of experienced instructors in the apprenticeships field can increase the quality of MS levels. PMID:28243401

  15. 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....

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

    Directory of Open Access Journals (Sweden)

    Jun Lei


    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.

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

    NARCIS (Netherlands)

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


    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.

  18. DoD Science and Engineering Apprenticeship Program for High School Students, 1996-'97 Activities

    National Research Council Canada - National Science Library

    Pfeffer, Richard


    The year 1996-97 represented our fifteenth successful DoD Science and Engineering Apprenticeship Program for High School Students at Florida State University, sponsored by the Office of Naval Research...

  19. USAF Summer Research Program - 1994 High School Apprenticeship Program Final Reports, Volume 14, Rome Laboratory

    National Research Council Canada - National Science Library

    Moore, Gary


    The United States Air Force High School Apprenticeship Program's (USAF-HSAP) purpose is to place outstanding high school students whose interests are in the areas of mathematics, engineering, and science to work in a laboratory environment...

  20. USAF Summer Research Program - 1995 High School Apprenticeship Program Final Reports, Volume 13, Phillips Laboratory

    National Research Council Canada - National Science Library

    Moore, Gary


    The United States Air Force High School Apprenticeship Program's (USAF-HSAP) purpose is to place outstanding high school students whose interests are in the areas of mathematics, engineering, and science to work in a laboratory environment...

  1. USAF Summer Research Program - 1994 High School Apprenticeship Program Final Reports, Volume 15B, Wright Laboratory

    National Research Council Canada - National Science Library

    Moore, Gary


    The United States Air Force High School Apprenticeship Program's (USAF-HSAP) purpose is to place outstanding high school students whose interests are in the areas of mathematics, engineering, and science to work in a laboratory environment...

  2. USAF Summer Research Program - 1994 High School Apprenticeship Program Final Reports, Volume 13, Phillips Laboratory

    National Research Council Canada - National Science Library

    Moore, Gary


    The United States Air Force High School Apprenticeship Program's (USAF-HSAP) purpose is to place outstanding high school students whose interests are in the areas of mathematics, engineering, and science to work in a laboratory environment...

  3. USAF Summer Research Program - 1994 High School Apprenticeship Program Final Reports, Volume 12B, Armstrong Laboratory

    National Research Council Canada - National Science Library

    Moore, Gary


    The United States Air Force High School Apprenticeship Program's (USAF-HSAP) purpose is to place outstanding high school students whose interests are in the areas of mathematics, engineering, and science to work in a laboratory environment...

  4. USAF Summer Research Program - 1995 High School Apprenticeship Program Final Reports, Volume 14, Rome Laboratory

    National Research Council Canada - National Science Library

    Moore, Gary


    The United States Air Force High School Apprenticeship Program's (USAF HSAP) purpose is to place outstanding high school students whose interests are in the areas of mathematics, engineering, and science to work in a laboratory environment...

  5. USAF Summer Research Program - 1994 High School Apprenticeship Program Final Reports. Volume 12A, Armstrong Lab

    National Research Council Canada - National Science Library

    Moore, Gary


    The United States Air Force High School Apprenticeship Program's (USAF-HSAP) purpose is to place outstanding high school students whose interests are in the areas of mathematics, engineering, and science to work in a laboratory environment...

  6. USAF Summer Research Program - 1993 High School Apprenticeship Program Final Reports, Volume 13, Phillips Laboratory

    National Research Council Canada - National Science Library

    Moore, Gary


    The United States Air Force High School Apprenticeship Programs (USAF- HSAP) purpose is to place outstanding high school students whose interests are in the areas of mathematics, engineering, and science to work in a laboratory environment...

  7. USAF Summer Research Program - 1994 High School Apprenticeship Program Final Reports, Volume 15A, Wright Laboratory

    National Research Council Canada - National Science Library

    Moore, Gary


    The United States Air Force High School Apprenticeship Program's (USAF-HSAP) purpose is to place outstanding high school students whose interests are in the areas of mathematics, engineering, and science to work in a laboratory environment...

  8. USAF Summer Research Program - 1994 High School Apprenticeship Program Final Reports, Volume 16 AEDC

    National Research Council Canada - National Science Library

    Moore, Gary


    The United States Air Force High School Apprenticeship Program's (USAF-HSAP) purpose is to place outstanding high school students whose interests are in the areas of mathematics, engineering, and science to work in a laboratory environment...

  9. 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.

  10. Assistance in Determining BACT for Simple-Cycle Natural Gas Turbine Peaker Project Proposed by Standard Energy Ventures (United States)

    This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database. Some documents in the database are a scanned or retyped version of a paper photocopy of the original. Although we have taken considerable effort to quality assure the documents, some may contain typographical errors. Contact the office that issued the document if you need a copy of the original.

  11. Apprenticeship in science research: whom does it serve? (United States)

    Davies, Paul


    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.

  12. 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.


    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.

  13. Effect of Internet-Based Cognitive Apprenticeship Model (i-CAM) on Statistics Learning among Postgraduate Students

    National Research Council Canada - National Science Library

    Saadati, Farzaneh; Ahmad Tarmizi, Rohani; Mohd Ayub, Ahmad Fauzi; Abu Bakar, Kamariah


    ... is 'value added' because it facilitates the conventional method of learning mathematics. Many researchers emphasize the effectiveness of cognitive apprenticeship in learning and problem solving in the workplace...

  14. Effect of Internet-Based Cognitive Apprenticeship Model (i-CAM) on Statistics Learning among Postgraduate Students: e0129938

    National Research Council Canada - National Science Library

    Farzaneh Saadati; Rohani Ahmad Tarmizi; Ahmad Fauzi Mohd Ayub; Kamariah Abu Bakar


    ... is 'value added' because it facilitates the conventional method of learning mathematics. Many researchers emphasize the effectiveness of cognitive apprenticeship in learning and problem solving in the workplace...

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

  16. Does Academic Apprenticeship Increase Networking Ties among Participants? A Case Study of an Energy Efficiency Training Program (United States)

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


    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…

  17. The Incidence of Apprenticeships in England by Industry Sector, 2010/11 to 2014/15. Research Factsheet (United States)

    Patrignani, Pietro; Hedges, Sophie; Conlon, Gavan


    This factsheet provides provisional information on the incidence of apprenticeships in England using information between 2010/11 and 2014/15 from the Individualised Learner Record (ILR) and Employer Data Service (EDS) further matched to the Inter-Departmental Business Register (IDBR). Specifically, it presents the number of apprenticeship starts…

  18. Impact of a third-year surgical apprenticeship model: perceptions and attitudes compared with the traditional medical student clerkship experience. (United States)

    Reid, Chris M; Kim, Dennis Y; Mandel, Jess; Smith, Alan; Talamini, Mark A; Bansal, Vishal


    Current literature suggests that medical students may have negative misconceptions of a surgical career partly due to the traditional hierarchical structure of the surgical clerkship. We hypothesized that a novel medical student apprenticeship would result in positive changes in perceptions of both surgeons and surgical careers. In the 2011 academic year, third-year medical students were offered a 2-week apprenticeship elective, in addition to the standard 8-week surgical clerkship. Unlike a traditional service, students apprenticed directly with participating faculty on a one-on-one basis. At the clerkship's end, students received a structured questionnaire assessing perceptions and attitudes toward surgeons and a career in surgery. Subjects responded anonymously using a 5-point Likert scale. A Wilcoxon Rank-Sum was performed comparing students who participated vs those who did not participate in the apprenticeship. There was a 99% survey response (105 of 106). Of those, 50 (48%) participated in the apprenticeship. Apprenticeship students were more likely to view surgeons as content (p Apprenticeship students were also more likely to participate in the operating room (p apprenticeship had a more positive view of surgeons and the field of surgery compared with students not participating. An apprenticeship model enhances the surgical clerkship experience and improves medical student perceptions of surgery as a career. Copyright © 2014 American College of Surgeons. Published by Elsevier Inc. All rights reserved.

  19. From the Provider-Led to an Employer-Led System: Implications of Apprenticeship Reform on the Private Training Market (United States)

    Chankseliani, Maia; Relly, Susan James


    Despite expending a great deal of public money, and after many government-led "reforms" to develop an apprenticeship system that rivals those found in other countries, the apprenticeship system in England still faces a number of challenges and failings, not least in the private training market. This paper explores the landscape of…

  20. How Can the Expansion of the Apprenticeship System in India Create Conditions for Greater Equity and Social Justice? (United States)

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


    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 the high…

  1. Nursing Instructor and Students' Perspectives on Clinical Education Apprenticeship Problems. (United States)

    Hasanpour-Dehkordi, Ali; Shohani, Masoumeh


    Different problems might lead to reduction in the efficiency of nursing students' apprenticeship education and solving those problems. This study was conducted to determine nursing internship problems from the perspective of trainers and students. In this descriptive cross-sectional study, 20 trainers and 43 senior students of nursing were selected using census method. A researcher-made questionnaire was used to collect data. Total internal consistency (α) of the questionnaire was 0.88 and had proper convergent validity. SPSS was used to analyse data with applying descriptive and inferential statistics. More than 50% considered their course relatively weak or weak in helping intern nurses to acquire comprehensive view of the nursing profession that takes a social perspective into account, skills required for the processes of nursing and instructing patients. Problems such as insufficient access to welfare and educational facilities, lack of co-operation among clinical team and scattering of internship sessions during a course were mentioned by nurses and their trainers. They believed that changes must take place in the way internship courses are carried out. Although the internship courses seem to achieve their aim of improving students' skills and independence in providing different nursing services to students and their trainers generally have a positive attitude towards such courses, there are still problems in effective exercise of the training.

  2. The Osler Fellowship: an apprenticeship for medical educators. (United States)

    Steinert, Yvonne; Boudreau, J Donald; Boillat, Miriam; Slapcoff, Barry; Dawson, David; Briggs, Anne; Macdonald, Mary Ellen


    As part of a renewed focus on the physician as healer and professional at McGill University, faculty members were recruited to teach in a four-year, longitudinal doctoring course called Physician Apprenticeship. The goal of this study was to examine the impact of this experience and the accompanying faculty development program on the teachers, known as Osler Fellows. An interviewer conducted semistructured interviews with 23 clinicians to understand their experiences as Osler Fellows and ascertain their views on how the workshop-based faculty development program, designed to mirror student experiences, differed from other professional development activities. The notion of connection and reconnection with the profession emerged as a major theme, consisting of four subthemes: the joy of working with students, the desire to make a difference, the process of reflection and renewal, and the building of community. Distinctive aspects of the faculty development program included the value of a common purpose, content that corresponded with core values, a sense of continuity, peer mentorship, and the emergence of a community of practice. Teachers also reported a sense of honor in being associated with Osler's name and a feeling of privilege in accompanying students on their journeys of discovery. Participating in the Osler Fellowship, an example of situated and work-based learning, resulted in a sense of connection with students, medical education, core professional values, and colleagues. As medical educators continue to develop longitudinal mentoring programs, the authors hope that these findings will offer insights on faculty development, recruitment, and renewal.

  3. Nursing Instructor and Students’ Perspectives on Clinical Education Apprenticeship Problems (United States)

    Hasanpour-Dehkordi, Ali


    Introduction Different problems might lead to reduction in the efficiency of nursing students’ apprenticeship education and solving those problems. Aim This study was conducted to determine nursing internship problems from the perspective of trainers and students. Materials and Methods In this descriptive cross-sectional study, 20 trainers and 43 senior students of nursing were selected using census method. A researcher-made questionnaire was used to collect data. Total internal consistency (α) of the questionnaire was 0.88 and had proper convergent validity. SPSS was used to analyse data with applying descriptive and inferential statistics. Results More than 50% considered their course relatively weak or weak in helping intern nurses to acquire comprehensive view of the nursing profession that takes a social perspective into account, skills required for the processes of nursing and instructing patients. Problems such as insufficient access to welfare and educational facilities, lack of co-operation among clinical team and scattering of internship sessions during a course were mentioned by nurses and their trainers. They believed that changes must take place in the way internship courses are carried out. Conclusion Although the internship courses seem to achieve their aim of improving students’ skills and independence in providing different nursing services to students and their trainers generally have a positive attitude towards such courses, there are still problems in effective exercise of the training. PMID:27790467

  4. NASA-Ames Summer High School Apprenticeship Research Program (SHARP) (United States)

    Powell, P.


    The function of SHARP is to recognize high school juniors who have demonstrated unusually high promise for sucess in mathemtics and science. Twenty academically talented students who will be seniors in high school in September were chosen to participate in SHARP 83. Mentors were selected to provide students with first-hand experiences in a research and development environment in order that each student might try out his or her tentative professional career choice. Some special features of SHARP included field trips to private industries doing similar and related research, special lectures on topics of research here at ARC, individual and group counseling sessions, written research papers and oral reports, and primarily the opportunity to be exposed to the present frontiers in space exploration and research. The long-range goal of SHARP is to contribute to the future recruitment of needed scientists and engineers. This final report is summary of all the phases of the planning and implemenation of the 1983 Summer High School Apprenticeship Research Program (SHARP).

  5. The House of Letters: Musical Apprenticeship among the Newar Farmers (Kathmandu Valley, Nepal

    Directory of Open Access Journals (Sweden)

    Franck Bernède


    Full Text Available This article explores the principles of musical discourse among the farmers of the Kathmandu Valley as revealed through the teaching of the dhimay drum. During ritual apprenticeship, the transmission of a corpus of musical compositions based on mimetic syllables that the discourse of authority of the masters expresses. Compositions played during religious processions originate from these syllables, which imitate the sounds of the drum. In addition, dhimay drum apprenticeship is inextricably linked to that of acrobatics, which includes the handling of a bamboo pole. This essay discusses the nature of this musical language in its traditional context, as well as its recent transformations in Newar society.

  6. [From apprenticeship to Nobel Prize: Henri Moissan's fabulous destiny]. (United States)

    Lafont, O


    Born in Paris on September 28, 1852, son of an eastern railways' employee and of a dressmaker, Henri Moissan's secondary schooling in Meaux did not allow him to get access to the sesame diploma "baccalauréat" (GCE). In 1869, he did obtain a special certificate of secondary schooling so that he could become an apprentice in watch making. That could have been the end of the story, but dreadful event for France appeared to have beneficial effects for Moissan. Under the threat of the Prussian army, Moissan's family took refuge near Paris. This gave the young Henri the opportunity to register as a student for the second-class pharmacy diploma, which did not need, at the time, the GCE. Moissan became then a trainee in pharmacy in 1871. Meanwhile, he followed the special schooling of "Ecole de chimie" founded by E. Frémy, and then joined the laboratory of Dehérain at the Museum, where he worked in plant physiology. He finally obtained the famous "baccalauréat" (GCE) and could register as a student in first-class pharmacy. He became a pharmacist as well as a doctor in sciences. In 1883, Moissan was named professor at the school of pharmacy in Paris. In 1886, he isolated fluorine by electrolysis of fluorhydric acid, in the presence of potassium fluoride, at a low temperature. He then studied diamond synthesis and gave a start to high temperature chemistry, designing his famous furnace. These findings and many others allowed Moissan to rise to membership in many learned academies around the world. Crowning achievement, Moissan won the Nobel Prize in 1906. A man of culture, collector of autographs and paintings, he died in 1907. Nothing of that would have been possible if there had not been a second-class pharmacist diploma. The history of Henri Moissan is one of a rise from apprenticeship to the Nobel Prize.

  7. Effect of Melatonin on the Outcome of Assisted Reproductive Technique Cycles in Women with Diminished Ovarian Reserve: A Double-Blinded Randomized Clinical Trial

    Directory of Open Access Journals (Sweden)

    Bahia Namavar Jahromi


    Full Text Available Diminished ovarian reserve (DOR significantly decreases the success rate of the assisted reproductive technique (ART. In this study, we assessed the effect of melatonin on the ART outcomes in women with DOR. A double-blinded, randomized, clinical trial was performed on 80 women with DOR as a pilot study in Shiraz, between 2014 and 2015. DOR was defined as the presence of 2 of the following 3 criteria: 1 anti-Müllerian hormone ≤1, 2 folliclestimulating hormone ≥10, and 3 bilateral antral follicle count ≤6. The women received 3 mg/d melatonin or a placebo since the fifth day of one cycle prior to gonadotropin stimulation and continued the treatment up to the time of ovum pickup. The ART outcomes were compared between the groups using SPSS software. Finally, there were 32 women in the case and 34 in the placebo groups. The mean age and basal ovarian reserve test were the same between the groups. The serum estradiol level on the triggering day was significantly higher in the case group (P=0.005. The mean number of MII oocytes was higher in the case group, but the difference did not reach statistical significance. Number of the patients who had mature MII oocytes (P=0.014, top-quality embryos with grade 1 (P=0.049, and embryos with grades 1 and 2 (P=0.014 was higher among the women who received melatonin. However, the other ART outcomes were not different between the groups. The serum estradiol level was higher and more women with DOR had good-quality oocytes and embryos after receiving melatonin; however, no other outcome was different between the case and control groups. Trial Registration Number: IRCT2014041417264N1

  8. Does duration of abstinence affect the live-birth rate after assisted reproductive technology? A retrospective analysis of 1,030 cycles. (United States)

    Periyasamy, Anurekha J; Mahasampath, Gowri; Karthikeyan, Muthukumar; Mangalaraj, Ann M; Kunjummen, Aleyamma T; Kamath, Mohan S


    To study influence of abstinence period on the live-birth rate after assisted reproductive technology (ART). Retrospective cohort study. Reproductive medicine unit, university-level hospital. A total 1,030 ART cycles evaluated from 2011 to 2015. Group I, abstinence period 2-7 days, and group II, abstinence period >7 days, were compared. Two subgroups Ia (2-4 days) and Ib (5-7 days) were also compared with group II. Primary outcome was live birth per ET. Secondary outcomes included implantation, clinical pregnancy, and miscarriage rates. The live-birth rate (34.1 % vs. 24.1%; odds ratio [OR], 1.6; 95% confidence interval [CI], 1.1-2.4), clinical pregnancy rate (44.4 % vs. 32.7%; OR, 1.6; 95% CI, 1.1-2.3), and implantation rate (26.4% vs. 18.2%) were significantly higher in group I compared with group II. Other secondary outcomes of fertilization rate and miscarriage rate did not differ between groups I and II. The adjusted odds ratio (aOR) for live birth (aOR, 1.6; 95% CI, 1.1-2.5) and clinical pregnancy rates (aOR, 1.7; 95% CI, 1.2-2.5) were significantly higher for group I compared with group II. The live-birth rate was significantly higher in group Ia (36.1% vs. 24.1%) compared with group II. An abstinence period of more than 7 days may impact ART outcomes adversely when compared with an abstinence period of 2-7 days. Copyright © 2017 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

  9. The Youth Arts Apprenticeship Movement: A New Twist on an Historical Practice (United States)

    Charland, William


    Whether massive in scope or intimate, focused on public works or gallery exhibitions, directed toward area youth in general or targeting at-risk populations, administered through public or private organizations, youth arts apprenticeship programs signal an exciting change in the relationship between art, artists, and society. Supported by sound…

  10. Australian Apprenticeships: Trends, Challenges and Future Opportunities for Dealing with Industry 4.0. Conference Paper (United States)

    Loveder, Phil


    The Australian economy is in transition. Its future prosperity will depend on greater economic diversification and on innovation and entrepreneurship, hallmarks of Industry 4.0. This has implications for skills development for future workers and for those needing to move into new jobs or roles. It also has a direct impact on apprenticeships--an…

  11. Field Heat Treatment Technician: Competency Profile. Apprenticeship and Industry Training. 20908.1 (United States)

    Alberta Advanced Education and Technology, 2008


    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…

  12. 76 FR 17157 - Notice of an Open Meeting of the Advisory Committee on Apprenticeship (ACA) (United States)


    ... Labor, Frances Perkins Building, 200 Constitution Avenue, NW., Washington, DC 20210. FOR FURTHER... Apprenticeship programs. ] The agenda will focus on the following topics: Workgroup Report-Outs and Open... who wishes to speak at the meeting must indicate the nature of the intended presentation and the...

  13. Comparing the Impact of Traditional and Cooperative Apprenticeship Programs on Graduates' Industry Success. (United States)

    Rezin, Andrew A.; McCaslin, N. L.


    Follow-up of associate degree auto technology graduates who participated in cooperative apprenticeship (n=39) or traditional campus-based programs (n=34) indicated that co-op participants had higher rates of relevant employment, higher income, more career advancement, and greater satisfaction with their preparation. Age, prior experience/training,…

  14. Cognitive Apprenticeship as an Instructional Strategy for Solving Corporate Training Challenges (United States)

    Chan, Peter; Miller, Ronald; Monroe, Eula


    Cognitive apprenticeship is a teaching approach proponed by social constructivist educators that scaffolds upon students' "zones of proximal development" in authentic situations. It is an effective approach used by teachers of instructional technology when teaching student practitioners. Nevertheless, implementation of instructional design…

  15. Cutting Tools, Files and Abrasives. Pre-Apprenticeship Phase 1 Training. (United States)

    Lane Community Coll., Eugene, OR.

    This self-paced student training module on cutting tools, files, and abrasives is one of a number of modules developed for Pre-apprenticeship Phase 1 Training. Purpose of the module is to enable students to identify and explain the proper use and care of various knives, saws, snips, chisels, and abrasives. The module may contain some or all of the…

  16. Youth Apprenticeships: Can They Work in America? EQW Issues Number 3. (United States)

    Tifft, Susan E.


    Youth apprenticeships have the potential to address simultaneously two national dilemmas: how to prepare U.S. business and its workers for a high skills future and how to upgrade the academic skills of all students. The highly successful German model may require some modification to work well in the United States. The biggest change may have to…

  17. The Future of Australian Apprenticeships: Report of the Stakeholder Forum. Summary Report (United States)

    Couldrey, Margo; Loveder, Phil


    "The future of Australian Apprenticeships" stakeholder forum was hosted by the National Centre for Vocational Education Research (NCVER) in conjunction with the Australian Government Department of Education and Training in Canberra on 25 October, 2016. The forum was attended by over 60 key stakeholders from across the vocational…

  18. Cost-Benefit Paradigm of Apprenticeship Training: Reviewing Some Existing Literature (United States)

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


    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…

  19. Apprenticeship Training in Germany--Still a Future-Oriented Model for Recruiting Skilled Workers? (United States)

    Walden, Gunter; Troltsch, Klaus


    The apprenticeship training system in Germany, where training takes place in both private companies and vocational schools, has traditionally played an outstanding role in the development of young skilled workers. However, particularly since the start of the new millennium, the chances of smooth transition from secondary school to an…

  20. Integrated School-Based Teacher Education: From Apprenticeship to a Complex Learning System (United States)

    Collins, Steve; Ting, Hermia


    This article differentiates approaches to school-based teacher education. It contrasts the pervasive apprenticeship model, to a "naturally integrated" school-based teacher education program that we describe as a complex learning system. Rather than view teacher education as fragmented by separating educational theory (physically based on…


    The "Research Apprenticeship Program for High School Students" began in 1990 as a collaborative effort between EPA's Office of Research and Development in Research Triangle Park, NC and Shaw University, an Historically Black College/University (HBCU) in Raleigh, NC. The program a...

  2. Grotesque Gestures or Sensuous Signs? Rethinking Notions of Apprenticeship in Early Childhood Education (United States)

    Knight, Linda


    Deleuze asserts that education is a mass of signs. Children learn to decode these signs, albeit in randomized and individual ways, displaying great skill in decoding some signs but not others, and demonstrating different acuities with different clusters of signs. Deleuzian notions of apprenticeship, a fluid becoming to knowledges as formal…

  3. Peer Apprenticeship Learning in Networked Learning Communities: The Diffusion of Epistemic Learning (United States)

    Jamaludin, Azilawati; Shaari, Imran


    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…

  4. Apprenticeship in Music: A Contextual Study for Instrumental Teaching and Learning (United States)

    Burwell, Kim


    "Master" and "apprentice" are terms more commonly coined than explained in the literature focused on instrumental teaching and learning. This theoretical paper explores apprenticeship as a way of understanding the practice of studio-based instruction, beginning with a brief historical overview, and going on to examine the…

  5. A Historical Writing Apprenticeship for Adolescents: Integrating Disciplinary Learning with Cognitive Strategies (United States)

    De La Paz, Susan; Monte-Sano, Chauncey; Felton, Mark; Croninger, Robert; Jackson, Cara; Piantedosi, Kelly Worland


    This study explored the extent to which an 18-day history and writing curriculum intervention, taught over the course of one year, helped culturally and academically diverse adolescents achieve important disciplinary literacy learning in history. Teachers used a cognitive apprenticeship form of instruction for the integration of historical reading…

  6. External Quality Arrangements for the Review of Modern Apprenticeship Off-the-Job Training (United States)

    Education Scotland, 2015


    This publication provides a quality framework to provide a structure for external review of Modern Apprenticeship off-the-job training.? The indicators in this framework are arranged under three key principles, addressing five questions which Education Scotland is adopting for evaluation purposes. These are underpinned by a wider principle on the…

  7. 75 FR 62188 - Proposed Information Collection (Other On-The-Job Training and Apprenticeship Training Agreement... (United States)


    ... AFFAIRS Proposed Information Collection (Other On-The-Job Training and Apprenticeship Training Agreement and Standards and Employer's Application To Provide Job Training) Activity: Comment Request AGENCY... information needed to meet statutory requirements for job training program. DATES: Written comments and...

  8. Effectiveness of Previous Initiatives Similar to Programs of Study: Tech Prep, Career Pathways, and Youth Apprenticeships (United States)

    Lewis, Morgan V.


    The federal career and technical legislation reauthorized in 2006 required the recipients of its funding to offer at least one Program of Study (POS). All states have developed some components of POS through earlier initiatives, primarily Tech Prep, career pathways, and youth apprenticeship, that attempted to ease the transition of students from…

  9. Understanding the Psychological Contract in Apprenticeships and Traineeships to Improve Retention. Research Report (United States)

    Smith, Erica; Walker, Arlene; Kemmis, Ros Brennan


    Attrition in apprenticeships and traineeships is an ongoing concern for employers and government alike, with completion standing at around 50% on average. One possible explanation for this high attrition rate is that there is a mismatch between the respective expectations of apprentices/trainees and employers. This research uses the concept of the…

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

    Lassnigg, Lorenz


    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. Apprenticeships and Vocations: Assessing the Impact of Research on Policy and Practice. Research Report (United States)

    Hargreaves, Jo


    This report assesses the impact of the National Centre for Vocational Education Research's (NCVER) research against two themes: the role of apprenticeships in a modern economy (focusing on work relating to completions) and the nature of the vocations and competencies required by industry. The evaluation spans work published from 2005 to 2015 and…

  12. The Design of a Cognitive Apprenticeship to Facilitate Storytime Programming for Librarians (United States)

    Brown, Jennifer A. Scott; Stefaniak, Jill E.


    The majority of research that has been conducted on structuring mentorship programs has been on career support in terms of transferring tacit and explicit knowledge from the supervisor to the protégé. While the instructional design literature touts that cognitive apprenticeships provide a great framework for constructivist and situated learning…

  13. The effect of choice options in training curricula on the supply of and demand for apprenticeships

    NARCIS (Netherlands)

    Jansen, A.; de Grip, A.; Kriechel, B.


    Building on Lazear’s skill weights approach, we study the effect of having more or less heterogeneity in the training curriculum on supply of and demand for apprenticeship training. Modernizations of training curricula provide us with a quasi-experimental setting as these modernizations can be seen

  14. Pregnancy outcomes decline with increasing body mass index: analysis of 239,127 fresh autologous in vitro fertilization cycles from the 2008-2010 Society for Assisted Reproductive Technology registry. (United States)

    Provost, Meredith P; Acharya, Kelly S; Acharya, Chaitanya R; Yeh, Jason S; Steward, Ryan G; Eaton, Jennifer L; Goldfarb, James M; Muasher, Suheil J


    To examine the effect of body mass index (BMI) on IVF outcomes in fresh autologous cycles. Retrospective cohort study. Not applicable. A total of 239,127 fresh IVF cycles from the 2008-2010 Society for Assisted Reproductive Technology registry were stratified into cohorts based on World Health Organization BMI guidelines. Cycles reporting normal BMI (18.5-24.9 kg/m(2)) were used as the reference group (REF). Subanalyses were performed on cycles reporting purely polycystic ovary syndrome (PCOS)-related infertility and those with purely male-factor infertility (34,137 and 89,354 cycles, respectively). None. Implantation rate, clinical pregnancy rate, pregnancy loss rate, and live birth rate. Success rates and adjusted odds ratios (ORs) with 95% confidence intervals (CIs) for all pregnancy outcomes were most favorable in cohorts with low and normal BMIs and progressively worsened as BMI increased. Obesity also had a negative impact on IVF outcomes in cycles performed for PCOS and male-factor infertility, although it did not always reach statistical significance. Success rates in fresh autologous cycles, including those done for specifically PCOS or male-factor infertility, are highest in those with low and normal BMIs. Furthermore, there is a progressive and statistically significant worsening of outcomes in groups with higher BMIs. More research is needed to determine the causes and extent of the influence of BMI on IVF success rates in other patient populations. Copyright © 2016 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

  15. An Apprenticeship Rotation Teaches Chief Residents Nontechnical Skills and ACGME Core Competencies. (United States)

    Kwakye, Gifty; Chen, Xiaodong Phoenix; Havens, Joaquim M; Irani, Jennifer L; Yule, Steven; Smink, Douglas S


    Traditionally, surgical training has used an apprenticeship model but has more recently moved to a service-based model, with groups of residents working with groups of attending surgeons. We developed an apprenticeship rotation to enhance one-on-one interaction between chief residents and selected faculty. We hypothesized that the apprenticeship rotation would be effective for teaching nontechnical skills (NTS) and core competencies. An apprenticeship rotation was created at a university-based surgery residency in which each chief resident selected a single attending surgeon with whom to work exclusively with for a 4-week period. Emphasis was placed on teaching intraoperative NTS as well as the 4 difficult-to-teach Accreditation Council for Graduate Medical Education core competencies (DCC): Interpersonal and Communication Skills, Practice-Based Learning and Improvement, Professionalism, and Systems-Based Practice. Participants were surveyed afterwards about their rotation using a 5-point Likert scale. A Wilcoxon signed rank test was used to compare differences depending on data distribution. All (13/13) the chief residents and 67% (8/12) faculty completed the survey. Overall, 85% of residents and 87.5% of faculty would recommend the rotation to other residents/faculty members. Both residents and faculty reported improvement in trainees' technical skills and NTS. Residents reported improvement in all 4 DCC, particularly, Practice-Based Learning and Improvement, Professionalism, and Interpersonal and Communication Skills. The apprenticeship rotation is an effective means of teaching residents both NTS and DCC essential for independent practice. Consideration should be given to introducing this program into surgical curricula nationally. Copyright © 2015 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.

  16. Learning to Work: Young People's Social and Labour-Market Integration through Supra-Company Apprenticeship Training in Austria

    National Research Council Canada - National Science Library

    Haidinger, Bettina; Kasper, Ruth


    The institutionalisation of supra-company apprenticeship training after its incorporation into the Vocational Education and Training Act in 2009 was a political signal to acknowledge a kind of third...

  17. [Apprenticeship of caring in student baccalaureate nurses in a program of formation of competence]. (United States)

    Krol, Pawel


    The nursing profession and university nursing programs both took great strides after universities first introduced nursing programs in and around the 1950s. The purpose of this phenomenological qualitative study was to describe the meaning of the apprenticeship of caring through in the Bachelor of Science in Nursing program. Watson's human caring philosophy (2008) suggested that researchers explore the meaning persons ascribe to phenomena. Based on semi-structured interviews this phenomenological study described the essence of the phenomenon and revealed that the apprenticeship of caring meant the harmonisation of the "self-perceived" and the "self-lived" that allows the embodiment of caring. The results of this research are available to teachers who may wish to consider its recommendations when planning and developing assessment and training programs for various kinds of nursing clienteles.

  18. Using the Cognitive Apprenticeship Web-based Argumentation System to Improve Argumentation Instruction (United States)

    Tsai, Chun-Yen; Jack, Brady Michael; Huang, Tai-Chu; Yang, Jin-Tan


    This study investigated how the instruction of argumentation skills could be promoted by using an online argumentation system. This system entitled `Cognitive Apprenticeship Web-based Argumentation' (CAWA) system was based on cognitive apprenticeship model. One hundred eighty-nine fifth grade students took part in this study. A quasi-experimental design was adopted and qualitative and quantitative analyses were used to evaluate the effectiveness of this online system in measuring students' progress in learning argumentation. The results of this study showed that different teaching strategies had effects on students' use of argumentation in the topics of daily life and the concept of `vision.' When the CAWA system was employed during the instruction and practice of argumentation on these two topics, the students' argumentation performance improved. Suggestions on how the CAWA system could be used to enhance the instruction of argumentation skills in science education were also discussed.

  19. Incorporating a research apprenticeship model in a Canadian nursing Honors Program. (United States)

    Reutter, Linda; Paul, Pauline; Sales, Anne; Jerke, Hannah; Lee, Anra; McColl, Meighan; Stafford, Erin; Visram, Alysha


    In this article, we describe the development of a BScN (Honors) Program in a large Canadian university. We describe the elements of the program, including the application of a research apprenticeship model as the core of the program. We provide examples of student learning experiences culminating in the Honors project. Recruitment, balancing clinical and research interests, financial support, and manageability of the Honors project emerged as key challenges in our first offerings of the program. Overall, students perceived that experiential research learning enhanced their research skills, increased appreciation of the process and outcomes of nursing research, and inspired confidence to pursue graduate education. We conclude that an apprenticeship model providing students with experiential research learning with established faculty researchers is an effective and efficient way to deliver the Honors Program in the context of a research-intensive nursing faculty. Copyright 2009 Elsevier Ltd. All rights reserved.

  20. When I Means We: A Reading of School in French Caribbean Apprenticeship Novels


    Pascale De Souza


    While most critics agree that the quest for identity which underlies much of post-colonial literature is illustrated in the thematic approaches adopted by writers, this study further the argument by suggesting that it also conditions writers' selection of narrative strategies. In its representation of subjectivity in process, the apprenticeship novel seems to offer an enticing model of self-completion. This narrative strategy, however, presents particular complexities when used to portray com...

  1. Investigating the nursing practitioners perspectives about undergraduate nursing internship and apprenticeship courses: is renewing required? (United States)

    Jamalmohammadi, Ali; Asghari, Mohammad; Shajari, Jila; Modares, Maryam


    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, questionnaires were used to collect data about the perspectives of nursing practitioners about undergraduate nursing internship and apprenticeship courses. There were 81.4% of females and 80.6%, 17.1% and 2.3% of organizational post of participants were nurse, head nurse and supervisor respectively. The occupied posts for 60.1%, 25.6% and 14.1% of subjects, respectively were nurse, head nurse and the supervisor. The application of the internship and apprenticeship courses in bachelor of nursing were in moderate to high levels. The highest percentages of responses for internship and apprenticeship training courses were in internal surgery nursing and special nursing and the minimum percentage of responses were for community hygiene nursing and mental health nursing. Due to observing moderate to high levels of fulfillment and lack of compliance of training courses, renewing to improve the quality and effectiveness of training programs are highly recommended. This can be effective in the future of nursing career and provide a practical training environment to achieve the goals of theoretical training and can lead nurses to become specialized in their field.

  2. Developing Teenage Youth's Science Identity Through an Astronomy Apprenticeship: Summative Evaluation Results (United States)

    Barros-Smith, R.; Porro, I.; Norland, E.


    We report on the results from the summative evaluation of the Youth Astronomy Apprenticeship (YAA) covering three years of implementation of the program. YAA is a year-long, out-of-school time initiative that connects urban teenage youth with astronomy as an effective way to promote scientific literacy and overall positive youth development. The program employs the strategies of a traditional apprenticeship model, common in crafts and trade guilds as well as in higher education. During the apprenticeship, youth develop knowledge and skills to create informal science education projects; through these projects they demonstrate their understanding of astronomy and use their communication skills to connect to general audiences. For some youth, participation extends across multiple years and their responsibilities for program implementation become multifaceted. Through exposing youth to astronomy investigations and providing opportunities to connect with audiences outside their program and communities, YAA expands scientific literacy to include assuming a science identity. We subscribe to the concept of science identity that describes personal ownership and integration of science into an individual's sense of self through processes of comprehension and personal meaning making. In the YAA context, science identity extends to and includes assuming an actual science advocacy role. Our methods for measuring the development of a science identity included assessments of a youth's perceived and actual understanding of science (cognitive construct), leadership in science (behavior construct), and commitment to science (affective construct).

  3. Consistency of Practical and Formal Epistemologies of Science Held by Participants of a Research Apprenticeship (United States)

    Burgin, Stephen R.; Sadler, Troy D.


    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 at a major university in the southeastern USA were interviewed twice during their experience to elicit their perspectives regarding their practical epistemologies. A phenomenological approach was used to analyze these interviews. The students held practical epistemological understandings of scientific knowledge that were described as being developmental, valuable, formulaic, and authoritative. A survey administered at the end of the program was used to reveal students' formal epistemologies of science. These practical and formal epistemologies were described in terms of Sandoval's (Science Education 89:634-656, 2005) epistemological themes and then compared for all participants. Findings revealed that, for most students, at least some level of consistency was present between their formal and practical epistemological understandings of each theme. In fact, for only one student with one theme, no consistency was evident. These results hold implications for the teaching, learning, and assessment of NOS understandings in these contexts as well as for the design of apprenticeship learning experiences in science.

  4. Cognitive apprenticeship in clinical practice: can it stimulate learning in the opinion of students? (United States)

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


    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.

  5. Understanding paediatric resident-continuity preceptor relationships through the lens of apprenticeship learning. (United States)

    Balmer, Dorene F; Serwint, Janet R; Ruzek, Sheryl B; Giardino, Angelo P


    Apprenticeship learning is common in medical education, but is often situated in theoretical frameworks which highlight its cognitive but not its social dimension. We conducted an ethnographic case study of paediatric residents' learning relationships with their preceptors in a community-based paediatric continuity site. It included 5 months (100 hours) of direct observation, and semi-structured interviews with 10 residents (before and after observation) and 10 primary care paediatricians who served as their continuity preceptors (after observation). Interview transcripts and notes from observations were inductively coded and analysed for major themes. Our observations and reports of resident learning trajectories fit well with the concept of legitimate peripheral participation. Residents learned the everyday practice of primary care as they worked alongside experienced paediatricians in the continuity clinic. Although the direction of learning was towards central participation in patient care, residents learned during transient shifts to the periphery of practice. As a function of residents' increased participation, preceptors moved into more supportive roles. Residents were not only learners; at times they were teachers who facilitated preceptors' learning. Legitimate peripheral participation is a concept that helps to explain apprenticeship as a dynamic social relationship which shapes, and is shaped by, learning that takes place in clinical practice. Other concepts shed light on the bidirectional nature of apprenticeship learning.


    Directory of Open Access Journals (Sweden)

    Ruhusen KUTLU


    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

  7. Computer-Assisted Sperm Analysis (CASA) parameters and their evolution during preparation as predictors of pregnancy in intrauterine insemination with frozen-thawed donor semen cycles. (United States)

    Fréour, Thomas; Jean, Miguel; Mirallié, Sophie; Dubourdieu, Sophie; Barrière, Paul


    To study the potential of CASA parameters in frozen-thawed donor semen before and after preparation on silica gradient as predictors of pregnancy in IUI with donor semen cycles. CASA parameters were measured in thawed donor semen before and after preparation on a silica gradient in 132 couples undergoing 168 IUI cycles with donor semen. The evolution of these parameters throughout this process was calculated. The relationship with cycle outcome was then studied. Clinical pregnancy rate was 18.4% per cycle. CASA parameters on donor semen before or after preparation were not significantly different between pregnancy and failure groups. However, amplitude of lateral head displacement (ALH) of spermatozoa improved in all cycles where pregnancy occurred, thus predicting pregnancy with a sensitivity of 100% and a specificity of 20%. Even if CASA parameters do not seem to predict pregnancy in IUI with donor semen cycles, their evolution during the preparation process should be evaluated, especially for ALH. However, the link between ALH improvement during preparation process and pregnancy remains to be explored. Copyright (c) 2009 Elsevier Ireland Ltd. All rights reserved.

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

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


    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…

  9. Task sharing in rural Haiti: Qualitative assessment of a brief, structured training with and without apprenticeship supervision for community health workers. (United States)

    McLean, Kristen E; Kaiser, Bonnie N; Hagaman, Ashley K; Wagenaar, Bradley H; Therosme, Tatiana P; Kohrt, Brandon A


    Despite growing support for supervision after task sharing trainings in humanitarian settings, there is limited research on the experience of trainees in apprenticeship and other supervision approaches. Studying apprenticeships from trainees' perspectives is crucial to refine supervision and enhance motivation for service implementation. The authors implemented a multi-stage, transcultural adaptation for a pilot task sharing training in Haiti entailing three phases: 1) literature review and qualitative research to adapt a mental health and psychosocial support training; 2) implementation and qualitative process evaluation of a brief, structured group training; and 3) implementation and qualitative evaluation of an apprenticeship training, including a two year follow-up of trainees. Structured group training revealed limited knowledge acquisition, low motivation, time and resource constraints on mastery, and limited incorporation of skills into practice. Adding an apprenticeship component was associated with subjective clinical competency, increased confidence regarding utilising skills, and career advancement. Qualitative findings support the added value of apprenticeship according to trainees.

  10. Influence Model Assisted Learning Cycle Mind Map to Achievement Physics Laboratory Judging from the performance Grade VIII SMPN 1 Rejoso Pasuruan

    Directory of Open Access Journals (Sweden)

    Ary Analisa Rahma


    Full Text Available Pengaruh Model Siklus Belajar Berbantuan Mind Map terhadap Prestasi Belajar Fisika Ditinjau dari Kinerja Laboratorium Siswa Kelas VIII SMPN 1 Rejoso Kabupaten Pasuruan Abstract: This study aimed to examine the effect of the learning cycle models aided the mind map on the learning achievement in terms of the performance of laboratory physics class VIII student on light material in SMP Negeri 1 Rejoso Pasuruan. This study is a quasi-experimental research. The research design used is a 2 x 2 factorial design subject of this study consisted of 204 students. The research instrument consisted of a treatment instrument which includes syllabi, lesson plans and worksheets, as well as measuring instruments including by means of laboratory performance and achievement test. The results showed that the learning achievement of students studying physics model of mind mapping aided learning cycle is higher than that of learning by inquiry learning, there is an interaction between learning and performance laboratory models for studying physics student achievement, as well as physics learning achievement of students who have a high-performance laboratory and studying low-aided learning cycle model mind map is higher than that of learning by inquiry learning. Based on these results it can be concluded that learning with the learning cycle model aided mind map is more effective than inquiry learning on learning achievement physics. Key Words: model of learning cycle, mind map, the performance of the lab, physics learning achievement Abstrak: Penelitian ini bertujuan untuk menguji pengaruh model siklus belajar berbantuan mind map terhadap prestasi belajar fisika ditinjau dari kinerja laboratorium siswa kelas VIII pada materi cahaya di SMP Negeri 1 Rejoso Kabupaten Pasuruan. Penelitian ini merupakan penelitian eksperimen semu. Rancangan penelitian yang digunakan adalah factorial design 2 x 2. Subjek penelitian ini terdiri atas 204 siswa. Instrumen penelitian terdiri

  11. The apprenticeship model of clinical medical education: time for structural change. (United States)

    Rassie, Kate


    The apprenticeship model, which forms the backbone of the current medical education system, has a strong historical precedent (and indeed multiple strengths). It is, however, important to acknowledge that its application to modern medicine is far from perfect, particularly with the breadth and complexity of current hospital systems. Demands on clinician resources, the sheer volume of knowledge our trainees must amass, short attachments and rigorous assessment schedules are all major challenges to a relatively simplistic educational system. Identifying and addressing these vulnerabilities is essential to enhancing the educational experiences of both undergraduate medical students and junior doctors.

  12. The role of cognitive apprenticeship in learning science in a virtual world (United States)

    Ramdass, Darshanand


    This article extends the discussion started by Margaret Beier, Leslie Miller, and Shu Wang's (2012) paper, Science games and the development of possible selves. In this paper, I suggest that a theoretical framework based on a sociocultural theory of learning is critical in learning in a virtual environment. I will discuss relevant research on the application of various components of the sociocultural perspective of learning in classroom environments and the potential for applying them in virtual worlds. I propose that research in science education should explore the processes underlying cognitive apprenticeship and determine how these processes can be used in virtual environments to help students learn science successfully.

  13. Clinical coaching: Evolving the apprenticeship model for modern housestaff. (United States)

    Rangachari, Deepa; Brown, Lorrel E; Kern, David E; Melia, Michael T


    Feedback is one of the core components of teaching in the clinical setting. Traditionally, this activity has emphasized observations made by senior physicians and delivered to medical trainees. However, the optimal approach to feedback remains uncertain, and the literature abounds with trainee-perceived inadequacies in feedback content, quality, and impact. Moreover, given the multiplicity of demands on trainees and their physician mentors, we propose that medical trainees themselves-specifically, medical residents-are poised to serve as unique adjunct effectors of feedback. We propose a model of "clinical coaching" for residents as teachers, with emphasis on the active roles of both the feedback "giver" and "recipient". We define "clinical coaching" as "a helping longitudinal relationship between coach and apprentice that provides continuing feedback on and assistance with improving performance." Here, "coach" is the more experienced trainee (e.g. supervising resident), and "apprentice" is the less experienced trainee (e.g. intern or medical student). By working to better recognize and prepare residents for this vital role, we propose to encourage efforts to optimize the structure, execution, and impact of feedback in the contemporary climate of medical education.

  14. Personal Realities and the Apprenticeship of Supervising: My Tortuous Journey as a Supervisor

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    Habibah Ashari


    Full Text Available The supervisor-supervisee relationship is an important relationship between two individuals; a relationship often fraught with conflict and tension. A successful relationship usually culminates in the finished product – the completed thesis; whilst a failed relationship results in the delay of the thesis or the abandonment of the research work altogether. Whilst one is usually trained in the field that one is teaching, lecturers typically become supervisors without any formal training; it is assumed that if one has done research, one can certainly supervise a research enterprise. This reflective paper recounts a senior professor’s evolution as a supervisor of the masters’ and doctoral theses. In this, she asked pertinent questions regarding how she learned to be a supervisor, her actions as a supervisor, her expectations and requirements, and the challenges she faced as a supervisor. She became a supervisor through an apprenticeship of sorts – learning at the feet of her own supervisor. This apprenticeship only shows one side of the equation, the side the student sees, but not the backstage work that comes with it. She discovers that she learns a lot more about supervising thesis through the act of supervising, having conversations with colleagues, reading about the area, and most importantly, reflecting deeply into the enterprise. A conscious, critical, and mindful reflection of one’s actions as a supervisor can help one improve practice and better serve the student whose relationship to a supervisor is very critical to their success.

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

    Bouta, Hara; Paraskeva, Fotini


    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. 75 FR 56578 - Renewal of the Advisory Committee on Apprenticeship (ACA), and an Open Meeting (United States)


    ...Pursuant to section 10 of the Federal Advisory Committee Act (Pub. L. 92 463; 5 U.S.C. APP. 1), notice is hereby given to announce the renewal of the ACA, the new membership appointments, and an open meeting being held on October 27-28, 2010. The Employment and Training Administration (ETA) hereby announces the renewal of the ACA and that membership appointments have been made to fill committee vacancies. The ACA is an advisory board, authorized by 29 U.S.C. 50a, which permits the Secretary of Labor to appoint a national advisory committee to serve without compensation, and complies with the requirements of the Federal Advisory Committee Act (5 U.S.C., App.). The ACA will provide advice and recommendations to the Secretary of Labor on a variety of matters facing the National Registered Apprenticeship System. The ACA membership is comprised of individuals that represent labor unions, employers, and members of the public. All members were appointed in July 2010, for two-year terms expiring in July 2012. Pursuant to the ACA Charter, the National Association of State and Territorial Apprenticeship Directors (NASTAD) and the National Association of Governmental Labor Officials (NAGLO) are both represented by their current Presidents on the public group of the ACA. The Secretary has appointed Ms. Phaedra Ellis-Lamkins, Chief Executive Officer from Green for All as the Chairperson of the ACA.

  17. The Impact of Wages on the Probability of Completing an Apprenticeship or Traineeship. NCVER Monograph Series 04/2010 (United States)

    Karmel, Tom; Mlotkowski, Peter


    The primary focus of this research is the impact of wages on the decision not to continue with an apprenticeship or traineeship. The approach taken is to model three wages relevant to apprentices and trainees: the wage during training; the expected wage in alternative employment; and, the expected wage on completion. The results of these models…

  18. Belonging to a Workplace: First-Year Apprentices' Perspectives on Factors Determining Engagement and Continuation through Apprenticeship (United States)

    Chan, Selena


    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…

  19. Apprenticeship in England--The Continued Role of the Academic-Vocational Divide in Shaping Learner Identities (United States)

    Brockmann, Michaela; Laurie, Ian


    Successive governments have pledged to enhance the quality of apprenticeship in Britain so as to achieve "parity of esteem" with academic study. Yet, at the same time, the discourse of the academic-vocational divide has dominated the academic, policy-maker and practitioner debates. This paper draws on two recent studies designed to…

  20. Apprenticeship and Progression in the Healthcare Sector: Can Labour Market Theory Illuminate Barriers and Opportunities in Contrasting Occupations? (United States)

    Turbin, Jill; Fuller, Alison; Wintrup, Julie


    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…

  1. From orphan to artisan: apprenticeship careers and contract enforcement in The Netherlands before and after the guild abolition

    NARCIS (Netherlands)

    Schalk, R.

    Employing novel data on over 400 apprenticed orphaned boys from the Dutch cities of Leiden and Utrecht, this article explores the functioning of apprenticeship during and after the guilds. Although the mobility of apprentices was high and contracts were uncertain, no complaints arose from masters or

  2. 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


    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.

  3. 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


    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.

  4. 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


    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. 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

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    Edvaldo Cavalcante


    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.

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

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    A.J. Drigo


    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.

  7. Apprenticeship in self-regulation: Supports and interventions for individuals with self-regulatory impairments. (United States)

    Ylvisaker, Mark; Feeney, Timothy


    In many settings, including schools and other community settings, an increasing number of individuals are identified with relatively weak self-regulation. This article describes an apprenticeship approach to serving children, adolescents and adults with self-regulation problems. The approach highlights antecedent supports for successful participation in meaningful activities and interactive procedures designed to equip the individual with the tools needed to regulate behaviour and emotions in a strategic and successful manner. This approach is consistent with Vygotskyan developmental and pedagogical theories as well as the theory and practice of Positive Behaviour Interventions and Supports in behavioural psychology. The article ends with the presentation of a mosaic of evidence supportive of this approach.

  8. From farm and family to career naturalist: the apprenticeship of Vernon Bailey. (United States)

    Kohler, Robert E


    How are scientists made? How, as young adults, have they discovered a scientific vocation and career? Through formal schooling, typically; but in the field sciences also through practical apprenticeship--through work. This essay presents the story of a frontier farm lad who became a career naturalist as a hired collector of animal specimens in the American West. Family and work are the leitmotifs of Vernon Bailey's story. It was family farming--bringing in the hay and finding the cows--that connected Bailey's love of skilled outdoor work with a desire to know nature scientifically. Traveling and working with professional naturalists, he came to see himself as a professional as well. His socialization was less a replacement than a layering of two identities, family and career.

  9. Using cognitive apprenticeship framework and multiple-possibility problems to enhance epistemic cognition (United States)

    Shekoyan, Vazgen; Etkina, Eugenia


    Epistemic cognition can occur when a person is solving a problem that does not have one correct answer (a multiple-possibility problem). The solver is engaged in epistemic cognition if she/he examines different possibilities, assumptions, and evaluates the outcomes. Epistemic cognition is an important part of real life problem-solving. Physicists routinely engage in epistemic cognition when they solve problems. But in educational settings, we polish problems and make them single-possibility problems. Thus students rarely get a chance to engage in epistemic cognition while working on problem-solving tasks. We introduced multiple-possibility physics problems in recitation sections of an algebra-based introductory physics course at Rutgers University. We describe here how we have incorporated the cognitive apprenticeship framework in the course and evaluated its effectiveness as a method of enhancing students' epistemic cognition level.

  10. Deliberate apprenticeship in the Pediatric Emergency Department improves experience for third-year students. (United States)

    Iyer, Maya Subbarao; Mullan, Patricia B; Santen, Sally A; Sikavitsas, Athina; Christner, Jennifer G


    The Pediatric Emergency Department (PED) provides medical students with learning in a high-volume, fast-paced environment; characteristics that can be stressful for new students. Shadowing can improve transitioning, yet this alone does not facilitate students' development of independent medical care competencies. This study evaluates if third-year medical students' deliberate apprenticeship with senior residents increases students' comfort and patient exposure in the PED. This study took place over the 2011-2012 academic year, and study participants were all third-year medical students during their pediatric clerkship rotation. This was a prospective educational intervention assigning students to randomized control blocks of deliberate apprenticeship (DA) intervention or control. DA students were paired with a senior resident who oriented and worked with the student, while control students were unpaired. All students completed a 20-question structured survey at shift end, which included questions about their perception of the learning environment, comfort with, and number of patient care responsibilities performed. We used independent Mann-Whitney and t-tests to compare experiences between the groups. Statistical significance was defined as pexperience. The titles for these themes are as follows: PED provides a good learning experience; uncertainty about the medical student's role in the PED; third-year medical students compete with other learners for teaching attention; opportunities provided to medical students for inclusion in patient care; personal knowledge deficits limit the ability to participate in the PED; PED pace affects learning opportunities. DA constitutes a feasible approach to the clinical learning environment that increases students' patient care experiences and may ease transitioning for undergraduate medical students to new clinical environments.

  11. When I Means We: A Reading of School in French Caribbean Apprenticeship Novels

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    Pascale De Souza


    Full Text Available While most critics agree that the quest for identity which underlies much of post-colonial literature is illustrated in the thematic approaches adopted by writers, this study further the argument by suggesting that it also conditions writers' selection of narrative strategies. In its representation of subjectivity in process, the apprenticeship novel seems to offer an enticing model of self-completion. This narrative strategy, however, presents particular complexities when used to portray coming of age in a society divided along ethnic lines. Simon Gikandi argues with regards to the Caribbean that the probability of a quest for identity reaching fruition is nil, but other critics take a more hopeful stand when they see the apprenticeship novel as a "novel of initiation into the methods of survival in a context marked by 'the presence of the Other'" (Kandé 34; my emphasis. The acquisition of the French language and reading and writing skills through school offers a salient example of these opposite stands. An analysis of several French Caribbean novels which explore the role of school reveals the emergence of a rift as school enables young characters such as José in La Rue Cases-Nègres by Joseph Zobel or the narrator and her brother in Le Temps des Madras by Françoise Ega to achieve a certain measure of wholeness, but becomes a deadly lure for young girls such as Zétou in Le Quimboiseur l'avait Dit or Mélanée in Pluie et Vent sur Télumée-Miracle. Though the rift often follows gendered lines, it is predominantly attributable to the existence, or lack thereof, of a strong support system which enables characters to retain their Caribbean identity while acquiring the skills needed to function in a French-speaking world.

  12. A socio-cognitive strategy to address farmers' tolerance of high risk work: Disrupting the effects of apprenticeship of observation. (United States)

    Mazur, Joan M; Westneat, Susan


    Why do generations of farmers tolerate the high-risk work of agricultural work and resist safe farm practices? This study presents an analysis inspired by empirical data from studies conducted from 1993 to 2012 on the differing effects of farm safety interventions between participants who live or work on farms and those who don't, when both were learning to be farm safety advocates. Both groups show statistically significant gains in knowledge and behavioral change proxy measures. However, non-farm participants' gains consistently outstripped their live/work farm counterparts. Drawing on socio-cultural perspectives, a grounded theory qualitative analysis focused on identifying useful constructs to understand the farmers' resistance to adopt safety practices. Understanding apprenticeships of observation and its relation to experiential learning over time can expose sources of deeply anchored beliefs and how they operate insidiously to promote familiar, albeit unsafe farming practices. The challenge for intervention-prevention programs becomes how to disrupt what has been learned during these apprenticeships of observation and to address what has been obscured during this powerful socialization process. Implications focus on the design and implementation of farm safety prevention and education programs. First, farm safety advocates and prevention researchers need to attend to demographics and explicitly explore the prior experiences and background of safety program participants. Second, farm youth in particular need to explore, explicitly, their own apprenticeships of observations, preferably through the use of new social media and or digital forms of expression, resulting in a story repair process. Third, careful study of the organization of work and farm experiences and practices need to provide the foundations for intervention programs. Finally, it is crucial that farm safety programs understand apprenticeships of observation are generational and ongoing over time

  13. Two-year apprenticeships for young people with learning difficulties: a cost-benefit analysis for training firms


    Fuhrer, Marc; Schweri, Jürg


    Education policymakers are currently faced with the challenge of enabling young people with learning difficulties to achieve an upper-secondary level qualification. Switzerland has introduced a new type of combined school/work-based VET programme that lasts two years. One of the key pre-requisites for success of two-year VET programmes is the willingness of host companies to create an adequate number of apprenticeship positions. We therefore examine the costs and benefits of two-year VET prog...

  14. Effect of Internet-Based Cognitive Apprenticeship Model (i-CAM) on Statistics Learning among Postgraduate Students. (United States)

    Saadati, Farzaneh; Ahmad Tarmizi, Rohani; Mohd Ayub, Ahmad Fauzi; Abu Bakar, Kamariah


    Because students' ability to use statistics, which is mathematical in nature, is one of the concerns of educators, embedding within an e-learning system the pedagogical characteristics of learning is 'value added' because it facilitates the conventional method of learning mathematics. Many researchers emphasize the effectiveness of cognitive apprenticeship in learning and problem solving in the workplace. In a cognitive apprenticeship learning model, skills are learned within a community of practitioners through observation of modelling and then practice plus coaching. This study utilized an internet-based Cognitive Apprenticeship Model (i-CAM) in three phases and evaluated its effectiveness for improving statistics problem-solving performance among postgraduate students. The results showed that, when compared to the conventional mathematics learning model, the i-CAM could significantly promote students' problem-solving performance at the end of each phase. In addition, the combination of the differences in students' test scores were considered to be statistically significant after controlling for the pre-test scores. The findings conveyed in this paper confirmed the considerable value of i-CAM in the improvement of statistics learning for non-specialized postgraduate students.

  15. Building capacity in mental health interventions in low resource countries: an apprenticeship model for training local providers. (United States)

    Murray, Laura K; Dorsey, Shannon; Bolton, Paul; Jordans, Mark Jd; Rahman, Atif; Bass, Judith; Verdeli, Helena


    Recent global mental health research suggests that mental health interventions can be adapted for use across cultures and in low resource environments. As evidence for the feasibility and effectiveness of certain specific interventions begins to accumulate, guidelines are needed for how to train, supervise, and ideally sustain mental health treatment delivery by local providers in low- and middle-income countries (LMIC). MODEL AND CASE PRESENTATIONS: This paper presents an apprenticeship model for lay counselor training and supervision in mental health treatments in LMIC, developed and used by the authors in a range of mental health intervention studies conducted over the last decade in various low-resource settings. We describe the elements of this approach, the underlying logic, and provide examples drawn from our experiences working in 12 countries, with over 100 lay counselors. We review the challenges experienced with this model, and propose some possible solutions. We describe and discuss how this model is consistent with, and draws on, the broader dissemination and implementation (DI) literature. In our experience, the apprenticeship model provides a useful framework for implementation of mental health interventions in LMIC. Our goal in this paper is to provide sufficient details about the apprenticeship model to guide other training efforts in mental health interventions.

  16. Biogeochemical Cycling (United States)

    Bebout, Brad; Fonda, Mark (Technical Monitor)


    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.

  17. Electrically Assisted Cycling around the World


    Cappelle, Jan; Lataire, Philippe; Maggetto, Gaston; Van den Bossche, Peter; Timmermans, Jean-Marc


    This paper will report about Brussels’s contribution to the European E-Tour (Electric Two wheelers On Urban Roads) project. This project aimed to prove the viability of electric two-wheelers in different (urban) areas, by providing European cities with a clean, efficient and reliable alternative for the car. Based on a technical identification of different electric bicycles that are available on the European market and an extended questionnaire filled in by their users, we tried to get an ...

  18. Deliberate Apprenticeship in the Pediatric Emergency Department Improves Experience for Third-year Students

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    Maya Subbarao Iyer


    Full Text Available INTRODUCTION: The Pediatric Emergency Department (PED provides medical students with learning in a high-volume, fast-paced environment; characteristics that can be stressful for new students. Shadowing can improve transitioning, yet this alone does not facilitate students’ development of independent medical care competencies. This study evaluates if third-year medical students’ deliberate apprenticeship with senior residents increases students’ comfort and patient exposure in the PED. METHODS: This study took place over the 2011-2012 academic year, and study participants were all third-year medical students during their pediatric clerkship rotation. This was a prospective educational intervention assigning students to randomized control blocks of deliberate apprenticeship (DA intervention or control. DA students were paired with a senior resident who oriented and worked with the student, while control students were unpaired. All students completed a 20-question structured survey at shift end, which included questions about their perception of the learning environment, comfort with, and number of patient care responsibilities performed. We used independent Mann-Whitney and t-tests to compare experiences between the groups. Statistical significance was defined as p<0.05. We used the constant comparative method to qualitatively analyze students’ comments. RESULTS: Response rate was 85% (145/169. Students also rated on 5-point Likert-scale their level of comfort with defined aspects of working in the PED. DA students (n=76 were significantly more comfortable obtaining histories (4.2 versus 3.8 and formulating differential diagnoses (3.9 versus 3.4. DA students also performed more physical exams (2.9 versus 2.4. We categorized themes from the qualitative analysis of the students’ comments about their PED experience. The titles for these themes are as follows: PED provides a good learning experience; uncertainty about the medical student

  19. Participation in college laboratory research apprenticeships among students considering careers in medicine

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    Dorothy A. Andriole


    Full Text Available Objective: We sought to determine the prevalence of college laboratory research apprenticeship (CLRA participation among students considering medical careers and to examine the relationship between CLRA participation and medical-school acceptance among students who applied to medical school. Methods: We used multivariate logistic regression to identify predictors of: 1 CLRA participation in a national cohort of 2001–2006 Pre-Medical College Admission Test (MCAT Questionnaire (PMQ respondents and 2 among those PMQ respondents who subsequently applied to medical school, medical-school acceptance by June 2013, reporting adjusted odds ratios (aOR and 95% confidence intervals (95% CI. Results: Of 213,497 PMQ respondents in the study sample (81.2% of all 262,813 PMQ respondents in 2001–2006, 72,797 (34.1% reported CLRA participation. Each of under-represented minorities in medicine (URM race/ethnicity (vs. white, aOR: 1.04; 95% CI: 1.01–1.06, Asian/Pacific Islander race/ethnicity (vs. white, aOR: 1.20; 95% CI: 1.17–1.22, and high school summer laboratory research apprenticeship (HSLRA participation (aOR: 3.95; 95% CI: 3.84–4.07 predicted a greater likelihood of CLRA participation. Of the 213,497 PMQ respondents in the study sample, 144,473 (67.7% had applied to medical school and 87,368 (60.5% of 144,473 medical-school applicants had been accepted to medical school. Each of female gender (vs. male, aOR: 1.19; 95% CI: 1.16–1.22, URM race/ethnicity (vs. white, aOR: 3.91; 95% CI: 3.75–4.08, HSLRA participation (aOR: 1.11; 95% CI: 1.03–1.19, CLRA participation (aOR: 1.12; 95% CI: 1.09–1.15, college summer academic enrichment program participation (aOR: 1.26; 95% CI: 1.21–1.31, and higher MCAT score (per point increase, aOR: 1.31; 95% CI: 1.30–1.31 predicted a greater likelihood of medical-school acceptance. Conclusions: About one-third of all PMQ respondents had participated in CLRAs prior to taking the MCAT, and such participation

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

    Directory of Open Access Journals (Sweden)

    Dawn E. Pollon


    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.

  1. Dental Assistants (United States)

    ... State & Area Data Explore resources for employment and wages by state and area for dental assistants. Similar Occupations Compare the job duties, education, job growth, and pay of dental assistants with ...

  2. Assistive Technology (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 ...

  3. Building Science Identity in Disadvantaged Teenage Girls using an Apprenticeship Model (United States)

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


    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.

  4. NASA Ames summary high school apprenticeship research program, 1983 research papers (United States)

    Powell, P.


    Engineering enrollments are rising in universities; however, the graduate engineer shortage continues. Particularly, women and minorities will be underrepresented for years to come. As one means of solving this shortage, Federal agencies facing future scientific and technological challenges were asked to participate in the Summer High School Apprenticeship Research Program (SHARP). This program was created 4 years ago to provide an engineering experience for gifted female and minority high school students at an age when they could still make career and education decisions. The SHARP Program is designed for high school juniors (women and minorities) who are U.S. citizens, are 16 years old, and who have unusually high promise in mathematics and science through outstanding academic performance in high school. Students who are accepted into this summer program will earn as they learn by working 8 hours a day in a 5-day work week. This work-study program features weekly field trips, lectures and written reports, and job experience related to the student's career interests.

  5. Clinical teaching based on principles of cognitive apprenticeship: views of experienced clinical teachers. (United States)

    Stalmeijer, Renée E; Dolmans, Diana H J M; Snellen-Balendong, Hetty A M; van Santen-Hoeufft, Marijke; Wolfhagen, Ineke H A P; Scherpbier, Albert J J A


    To explore (1) whether an instructional model based on principles of cognitive apprenticeship fits with the practice of experienced clinical teachers and (2) which factors influence clinical teaching during clerkships from an environmental, teacher, and student level as perceived by the clinical teachers themselves. The model was designed to apply directly to teaching behaviors of clinical teachers and consists of three phases, advocating teaching behaviors such as modeling, creating a safe learning environment, coaching, knowledge articulation, and exploration. A purposive sample of 17 experienced clinical teachers from five different disciplines and four different teaching hospitals took part in semistructured individual interviews. Two researchers independently performed a thematic analysis of the interview transcripts. Coding was discussed within the research team until consensus was reached. All participants recognized the theoretical model as a structured picture of the practice of teaching activities during both regular and senior clerkships. According to participants, modeling and creating a safe learning environment were fundamental to the learning process of both regular and senior clerkship students. Division of teaching responsibilities, longer rotations, and proactive behavior of teachers and students ensured that teachers were able to apply all steps in the model. The theoretical model can offer valuable guidance in structuring clinical teaching activities and offers suggestions for the design of effective clerkships.

  6. Developing professional habitus: a Bernsteinian analysis of the modern nurse apprenticeship. (United States)

    O'Connor, Stephen J


    This paper discusses the development of professional habitus in nursing students from a sociological, and specifically, a Bernsteinian perspective. It outlines the theoretical basis for the development of this trait, regarded as one of the defining characteristics of professional practice, and discusses how its development has shaped the modern nurse apprenticeship with its current emphasis on situated learning. The paper considers some of the pitfalls to this approach and raises some caveats about the assumptions which underpin nursing education at the current time. It discusses how students' legitimate peripheral participation in the workplace may be jeopardised, and outlines how they may be faced with untenable choices in respect of 'fitting in' to the ward team or challenging poor practice where this occurs. Moreover, the paper considers how the increasing abrogation of 'caring' activities to non-registered staff threatens the very notion of professional habitus in nursing and posits some possible explanations for this. The paper concludes by arguing that a better understanding of professional habitus is required by all within the profession, and suggests that this concept provides the means by which two seemingly disparate concepts, 'professionalism' and 'vocationalism' can be brought together to the benefit of the nursing profession.

  7. Assistive Technologies (United States)

    Auat Cheein, Fernando A., Ed.


    This book offers the reader new achievements within the Assistive Technology field made by worldwide experts, covering aspects such as assistive technology focused on teaching and education, mobility, communication and social interactivity, among others. Each chapter included in this book covers one particular aspect of Assistive Technology that…

  8. Housing Assistance

    Directory of Open Access Journals (Sweden)

    Emma Baker


    Full Text Available In Australia, an increasing number of households face problems of access to suitable housing in the private market. In response, the Federal and State Governments share responsibility for providing housing assistance to these, mainly low-income, households. A broad range of policy instruments are used to provide and maintain housing assistance across all housing tenures, for example, assisting entry into homeownership, providing affordability assistance in the private rental market, and the provision of socially owned and managed housing options. Underlying each of these interventions is the premise that secure, affordable, and appropriate housing provides not only shelter but also a number of nonshelter benefits to individuals and their households. Although the nonshelter outcomes of housing are well acknowledged in Australia, the understanding of the nonshelter outcomes of housing assistance is less clear. This paper explores nonshelter outcomes of three of the major forms of housing assistance provided by Australian governments—low-income mortgage assistance, social housing, and private rent assistance. It is based upon analysis of a survey of 1,353 low-income recipients of housing assistance, and specifically measures the formulation of health and well-being, financial stress, and housing satisfaction outcomes across these three assistance types. We find clear evidence that health, finance, and housing satisfaction outcomes are associated with quite different factors for individuals in these three major housing assistance types.

  9. 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


    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.

  10. Understanding The Impact of an Apprenticeship-Based Scientific Research Program on High School Students' Understanding of Scientific Inquiry (United States)

    Aydeniz, Mehmet; Baksa, Kristen; Skinner, Jane


    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 scientific research helped the participants to develop competency in experimentation methods it had limited impact on participants' learning of the implicit aspects of scientific inquiry and NOS. Discussion focuses on the importance of making the implicit assumptions of science explicit to the students in such authentic scientific inquiry settings through structured curriculum.

  11. Virtual reality a motivation tool for the apprenticeship process; Realidade virtual como ferramenta motivadora ao processo de aprendizado

    Energy Technology Data Exchange (ETDEWEB)

    Rodrigues, Yuna; Teicheire, Ana Carolina A. [Universidade Gama Filho (UGF), Rio de Janeiro, RJ (Brazil); Mol, Antonio Carlos A., E-mail: [Universidade Gama Filho (UGF), Rio de Janeiro, RJ (Brazil); Instituto de Engenharia Nuclear (IEN/CNEN-RJ), Rio de Janeiro, RJ (Brazil); Jorge, Carlos Alexandre F., E-mail:, E-mail: [Instituto de Engenharia Nuclear (IEN/CNEN-RJ), Rio de Janeiro, RJ (Brazil)


    This paper reports the results of the computation applications development using virtual reality techniques, teaching purposes and scientific disclosure. The objective is to develop applications that can can facilitate the apprenticeship, using the computational resources that make easy to the students a ludic activity, in a way to improve their involvement with the approached themes, in order to facilitate the absorption their knowledge. The developed application results are presented, with the perspective of their utilization through presentations in laboratories of the two involved institutions

  12. Associations of airway inflammation and responsiveness markers in non asthmatic subjects at start of apprenticeship. (United States)

    Demange, Valérie; Wild, Pascal; Zmirou-Navier, Denis; Tossa, Paul; Bohadana, Abraham; Barbaud, Annick; Paris, Christophe


    Bronchial Hyperresponsiveness (BHR) is considered a hallmark of asthma. Other methods are helpful in epidemiological respiratory health studies including Fractional Exhaled Nitric Oxide (FENO) and Eosinophils Percentage (EP) in nasal lavage fluid measuring markers for airway inflammation along with the Forced Oscillatory Technique measuring Airway resistance (AR). Can their outcomes discriminate profiles of respiratory health in healthy subjects starting apprenticeship in occupations with a risk of asthma? Rhinoconjunctivitis, asthma-like symptoms, FEV1 and AR post-Methacholine Bronchial Challenge (MBC) test results, FENO measurements and EP were all investigated in apprentice bakers, pastry-makers and hairdressers not suffering from asthma. Multiple Correspondence Analysis (MCA) was simultaneously conducted in relation to these groups and this generated a synthetic partition (EI). Associations between groups of subjects based on BHR and EI respectively, as well as risk factors, symptoms and investigations were also assessed. Among the 441 apprentice subjects, 45 (10%) declared rhinoconjunctivitis-like symptoms, 18 (4%) declared asthma-like symptoms and 26 (6%) suffered from BHR. The mean increase in AR post-MBC test was 21% (sd = 20.8%). The median of FENO values was 12.6 ppb (2.6-132 range). Twenty-six subjects (6.7%) had EP exceeding 14%. BHR was associated with atopy (p < 0.01) and highest FENO values (p = 0.09). EI identified 39 subjects with eosinophilic inflammation (highest values of FENO and eosinophils), which was associated with BHR and atopy. Are any of the identified markers predictive of increased inflammatory responsiveness or of development of symptoms caused by occupational exposures? Analysis of population follow-up will attempt to answer this question.

  13. Life cycle costs for Alaska bridges. (United States)


    A study was implemented to assist the Alaska Department of Transportation and Public Facilities (ADOT&PF) with life cycle costs for : the Alaska Highway Bridge Inventory. The study consisted of two parts. Part 1 involved working with regional offices...

  14. Two Countries--One System of Vocational Education? A Comparison of the Apprenticeship Reform in the Commercial Sector in Switzerland and Germany (United States)

    Pilz, Matthias


    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,…

  15. The Effect of Cognitive Apprenticeship-Based Professional Development on Teacher Self-Efficacy of Science Teaching, Motivation, Knowledge Calibration, and Perceptions of Inquiry-Based Teaching (United States)

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


    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…

  16. Stakeholders in the German and Swiss Vocational Educational and Training System: Their Role in Innovating Apprenticeships against the Background of Academisation (United States)

    Deissinger, Thomas; Gonon, Philipp


    Purpose: The purpose of this paper is to compare stakeholders' roles in Germany and Switzerland when it comes to promoting innovation in the dual apprenticeship model. In both countries, the relevant stakeholders who represent the various occupations and, in a more narrow sense, the social partners, actively shape vocational education and training…

  17. Educational Transfer as Transformation: A Case Study about the Emergence and Implementation of Dual Apprenticeship Structures in a German Automotive Transplant in the United States (United States)

    Gessler, Michael


    The apprenticeship system in Germany is carried out both by companies and vocational schools (the Dual System). The question of whether the German Dual System is transferable is currently being asked in vocational education and training research. The analysis of current transfer discourses alludes to a research desideratum: the actual approaches…

  18. Bridging the Gap between Work and Education in Vocational Education and Training. A Study of Norwegian Apprenticeship Training Offices and E-Portfolio Systems (United States)

    Nore, Haege; Lahn, Leif Christian


    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,…

  19. 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......We use a statistical model, the cointegrated vector autoregressive model, to assess the degree to which variations in Earth's orbit and endogenous climate dynamics can be used to simulate glacial cycles during the late Quaternary (390 kyr-present). To do so, we estimate models of varying complexity...

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


    African Journals Online (AJOL)

    changed to gestodene. Although large- scale comparative trials are needed to confirm this finding, evidence suggests that cycle control with gestodene is better than for monophasic preparations containing desogestrel, norgestimate or levonorgestrel,10 as well as for levonorg- estrel-or norethisterone-containing triphasics.

  2. Menu Cycles. (United States)

    Clayton, Alfred; Almony, John

    The curriculum guide for commercial foods instruction is designed to aid the teacher in communicating the importance of menu cycles in commercial food production. It also provides information about the necessary steps in getting food from the raw form to the finished product, and then to the consumer. In addition to providing information on how to…

  3. Simple cycles


    Rivin, Igor


    We obtain sharp bounds for the number of n-cycles in a finite graph as a function of the number of edges, and prove that the complete graph is optimal in more ways than could be imagined. En route, we prove some sharp estimates on power sums.

  4. Happy Cycling

    DEFF Research Database (Denmark)

    Geert Jensen, Birgitte; Nielsen, Tom


    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...

  5. 78 FR 2443 - Comment Request for Information Collection for the Registered Apprenticeship-College Consortium... (United States)


    ...: 202-693-2796. Individuals with hearing or speech impairments may access the telephone number above via... Department of Education's (DOE) Assistant Secretary for Vocational and Adult Education (OVAE), Brenda Dann...

  6. The use of planar graphs for the apprenticeship in the evolution of spatial structure for a mobile robot (United States)

    Laumond, J.-P.


    Two algorithms are defined for mobile robots learning characteristics of an area of movement. The algorithms were tested on the Hilare robot. The goal was to configure the hierarchy of a decisional system which integrated reasoning capabilities in interaction with the environment and sophisticated navigational abilities. The algorithms decompose the perceived environment and produce planar graphic representations. Attention is focused on the identification of vertices and their intersection, and from these concepts a technique of passage constrained to between two locations (objects) is derived. A series of metric criteria are then established for subgraphs of objects, doors and colors. The ITINERARY code is used for robot navigation to a goal in terms of successive subgoals, each having their own navigation subroutine. The robot, during apprenticeship, learns the different tracks of its functional area. Three methods are discussed for enabling a robot to identify its location at any moment.

  7. Laparoscopy training in surgical education: the utility of incorporating a structured preclinical laparoscopy course into the traditional apprenticeship method. (United States)

    De Win, Gunter; Van Bruwaene, Siska; Aggarwal, Rajesh; Crea, Nicola; Zhang, Zhewen; De Ridder, Dirk; Miserez, Marc


    To investigate whether preclinical laparoscopy training offers a benefit over standard apprenticeship training and apprenticeship training in combination with simulation training. This randomized controlled trial consisted of 3 groups of first-year surgical registrars receiving a different teaching method in laparoscopic surgery. The KU LEUVEN Faculty of Medicine is the largest medical faculty in Belgium. Thirty final-year medical students starting a general surgical career in the next academic year. Thirty final-year medical students were randomized into 3 groups, which differed in the way they were exposed to laparoscopic simulation training but were comparable in regard to ambidexterity, sex, age, and laparoscopic psychomotoric skills. The control group received only clinical training during surgical residentship, whereas the interval group received clinical training in combination with simulation training. The registrars were allowed to do deliberate practice. The Centre for Surgical Technologies Preclinical Training Programme (CST PTP) group received a preclinical simulation course during the final year as medical students, but was not exposed to any extra simulation training during surgical residentship. At the beginning of surgical residentship and 6 months later, all subjects performed a standardized suturing task and a laparoscopic cholecystectomy in a POP Trainer. All procedures were recorded together with time and motion tracking parameters. All videos were scored by a blinded observer using global rating scales. At baseline the 3 groups were comparable. At 6 months, for suturing, the CST PTP group was better than both the other groups with respect to time, checklist, and amount of movements. The interval group was better than the control group on only the time and checklist score. For the cholecystectomy evaluation, there was a statistical difference between the CST PTP study group and both other groups on all evaluation scales in favor of the CST PTP

  8. Robot-Assisted Laparoscopic Fundoplications in Pediatric Surgery: Experience Review. (United States)

    Binet, Aurélien; Fourcade, Laurent; Amar, Sarah; Alzahrani, Khalid; Cook, Ann-Rose; Braïk, Karim; Cros, Jérôme; Longis, Bernard; Villemagne, Thierry; Lardy, Hubert; Ballouhey, Quentin


     Laparoscopic fundoplicature for gastroesophageal reflux disease has become the gold standard because of the improvement of postoperative rehabilitation compared with the open procedure. The robot-assisted surgery has brought new advantages for the patient and the surgeon compared with laparoscopy. We studied this new approach and the learning curve.  Sixty robot-assisted fundoplicatures were performed in two university pediatric surgery centers. Data of the patients were recorded, including peroperative data (operation length and complications), postoperative recoveries, and clinical evolution. The learning curve was evaluated retrospectively and each variable was compared along this learning curve.  We observed a flattening of the learning curve after the 20th case for one surgeon. The mean operative time decreased significantly to 80 ± 10 minutes after 20 cases. There were no conversions to an open procedure. A revision surgery was indicated for 4.7% of the patients by a surgical robot-assisted laparoscopic approach.  The robotic system appears to add many advantages for surgical ergonomic procedures. There is a potential benefit in operating time with a short technical apprenticeship period. The setting up system is easy with a short docking time. Georg Thieme Verlag KG Stuttgart · New York.

  9. Safe cycling!

    CERN Multimedia

    Anaïs Schaeffer


    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...

  10. The effectiveness of apprenticeship training: A within-track comparison of workplace-based and school-based vocational training in Hungary. (United States)

    Horn, Dániel


    Although apprenticeship training has been praised for its effectiveness in easing the transition of non-college-bound students from school to work, most studies rely on cross-country or cross-track comparisons. This study compares apprenticeship training students with non-apprentices within educational track in a relatively uncoordinated and decentralized institutional setting. Using a rich database and a unique set of observable individual-level characteristics as well as local labor market fixed effects to control for the potential selection bias, the results show that there are no significant differences in employment opportunities between apprentices and non-apprentices within just a year after graduation. This might be due to the failure of the Hungarian firms to enhance the skills of apprentices and thus increase their chances of entering the labor market compared to their school-trained peers. However, some immediate positive effect of apprenticeship training within sub-populations is apparent, which are likely to be the result of screening. Copyright © 2015 Elsevier Inc. All rights reserved.

  11. Coming Full Cycle. (United States)

    Fay, Lindsey; Carll-White, Allison; Harrell, James


    This article illustrates a collaborative, full cycle diagnostic postoccupancy evaluation (POE) conducted in an emergency department (ED) to demonstrate methods of planning a POE, conducting research to capture meaningful data, and applying outcomes through the use of a design charrette. POEs often end with the reporting of findings rather than suggesting how this knowledge feeds forward. A design charrette presents an opportunity to engage with POE evidence and integrate research into practice. Planning for the POE resulted in a multiphased, multimethodological study. Data collection and analysis utilized objective and subjective measures yielding both qualitative and quantitative data. The design charrette then served as an interactive method to assist design practitioners in both understanding and applying the research findings in the redesign of the entry/triage sequence of the ED. POE findings revealed four key issues impacting the ED experience. These include workflow, communication, privacy and confidentiality, and safety and security. In analyzing the use of the charrette to link POE findings to design application, it was determined that the charrette should include an all-inclusive, collaborative process, easily interpreted evidence, active participant engagement, and feasible outcomes grounded in research. Taking the POE process full cycle is a critical component in bridging the gap between research and its application to design. The charrette process offers a positive mark of completion to the POE and helps participants gain sensitivity to the importance of evidence-based decision-making.

  12. DoD Science and Engineering Apprenticeship Program for High School Students, 1996-󈨥 Activities (United States)


    Science Fair, A Honor Roll Baseball, Cross Country, Athletics, Weightlifting , Computers Robert Sidney Cox, III Other Male Leon High School...Sports Medicine Honor Roll Weightlifting , Swimming Marcus Mills Black Male Godby High School Florida State University Undecided FSU Incentive...mountains on the atmospheric jet stream, and two assisted in data analysis using computer programs on PCs and the VAX. These activities were part of a

  13. DoD Science and Engineering Apprenticeship Program for High School Students, 1995-󈨤 Activities (United States)


    University of Florida Sports Medicine Honor Roll Weightlifting , Swimming NAME: RACE: SEX: HIGH SCHOOL: ANTICIPATED COLLEGE: ANTICIPATED MAJOR...experiments that simulate the influence of mountains on the atmospheric jet stream, and two assisted in data analysis using computer programs on PCs and the...participated during the summer was the analysis of photo- graphic velocity data from laboratory experiments on the interaction of topography with baroclinic

  14. A Vertically Integrated Online Radiology Curriculum Developed as a Cognitive Apprenticeship: Impact on Student Performance and Learning. (United States)

    Lim-Dunham, Jennifer E; Ensminger, David C; McNulty, John A; Hoyt, Amy E; Chandrasekhar, Arcot J


    The principles of Collins' cognitive apprenticeship model were used to design a radiology curriculum in which medical students practice radiological skills using online case-based modules. The modules are embedded within clinical third-year clerkships, and students are provided with personalized feedback from the instructors. We describe the development of the vertical online radiology curriculum and evaluate its impact on student achievement and learning process using a mixed method approach. The curriculum was developed over a 2-year period. Student participation was voluntary in the first year and mandatory in the second year. For quantitative curriculum evaluation, student metrics for voluntary versus mandatory groups were assessed using independent sample t tests and variable entry method regression analysis. For qualitative analysis, responses from a survey of students about the value of the curriculum were organized into defined themes using consensus coding. Mandatory participation significantly improved (p = .001) the mean radiology examination score (82 %) compared to the voluntary group (73%), suggesting that mandatory participation had a beneficial effect on student performance. Potential preexisting differences in underlying general academic performance were accounted for by including mean basic science grades as the first variable in the regression model. The significant increase in R(2) from .16 to .28 when number of radiology cases completed was added to the original model, and the greater value of the standardized beta for this variable, suggest that the curriculum made a significant contribution to students' radiology examination scores beyond their baseline academic performance. Five dominant themes about curricular characteristics that enhanced student learning and beneficial outcomes emerged from consensus coding. These themes were (1) self-paced design, (2) receiving feedback from faculty, (3) clinical relevance of cases, (4) gaining

  15. Hydrological cycle. (United States)

    Gonçalves, H C; Mercante, M A; Santos, E T


    The Pantanal hydrological cycle holds an important meaning in the Alto Paraguay Basin, comprising two areas with considerably diverse conditions regarding natural and water resources: the Plateau and the Plains. From the perspective of the ecosystem function, the hydrological flow in the relationship between plateau and plains is important for the creation of reproductive and feeding niches for the regional biodiversity. In general, river declivity in the plateau is 0.6 m/km while declivity on the plains varies from 0.1 to 0.3 m/km. The environment in the plains is characteristically seasonal and is home to an exuberant and abundant diversity of species, including some animals threatened with extinction. When the flat surface meets the plains there is a diminished water flow on the riverbeds and, during the rainy season the rivers overflow their banks, flooding the lowlands. Average annual precipitation in the Basin is 1,396 mm, ranging from 800 mm to 1,600 mm, and the heaviest rainfall occurs in the plateau region. The low drainage capacity of the rivers and lakes that shape the Pantanal, coupled with the climate in the region, produce very high evaporation: approximately 60% of all the waters coming from the plateau are lost through evaporation. The Alto Paraguay Basin, including the Pantanal, while boasting an abundant availability of water resources, also has some spots with water scarcity in some sub-basins, at different times of the year. Climate conditions alone are not enough to explain the differences observed in the Paraguay River regime and some of its tributaries. The complexity of the hydrologic regime of the Paraguay River is due to the low declivity of the lands that comprise the Mato Grosso plains and plateau (50 to 30 cm/km from east to west and 3 to 1.5 cm/km from north to south) as well as the area's dimension, which remains periodically flooded with a large volume of water.

  16. 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


    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.

  17. The Lack of Collaboration Between Companies and Schools in the German Dual Apprenticeship System: Historical Background and Recent Data

    Directory of Open Access Journals (Sweden)

    Michael Gessler


    Full Text Available On the macro level (federal level and exo level (state or regional level, the German Dual Apprenticeship System shows a high degree of institutionalised collaboration. However, the companies and vocational schools on the meso level (institutional level and level of the actors, in contrast, are just loosely coupled with a dominant partner (i.e., companies and subordinate partner (i.e., vocational schools. How and why these structures have emerged, established and stabilised is part of a complex historical, societal and economical process. The historical developmental will be elaborated in the article. The term ‘dual system’ was invented in Germany in the 1960s, and the intention was to emphasise equal responsibilities, partnership of equals, lively encounters and close collaboration between companies and schools. This vision is not yet a reality, as the presented empirical survey demonstrates. A majority of companies do not or rather seldom collaborate with ‘their’ vocational schools. 74.2% of the companies do not or seldom coordinate their work, and 93% of the companies do not or seldom cooperate with the vocational schools. The German Dual Apprentice­ship System operates on the actual meso level just on the basis of less than 30% of its potentiality. The term ‘parallel systems’ seems to be more appropriate to characterise the actual situation on the meso level than the term ‘dual system’.

  18. [Results after assisted reproduction at a public fertility clinic]. (United States)

    Hanevik, Hans Ivar; Kahn, Jarl A; Bergh, Anette; Eriksen, Ellen; Friberg, Unn Mette; Haraldsen, Caroline Vegheim; Nilsen, Trine Gullhaug; Sydtveit, Astrid Helene; Rode, Paula


    Assisted reproduction is traditionally regarded as effective when it results in a high pregnancy rate per started treatment cycle. For the patients, it is more interesting to know how high the probability is of giving birth during a full course of assisted reproduction treatment. Retrospective series of 546 patients followed for three years of assisted reproduction at a public fertility clinic. During the follow-up period, 347 of the patients (63.6%) gave birth by means of assisted reproduction. Of the 199 remaining patients, 70 (12.8% of 546) stopped treatment because they had completed the three treatment cycles that are covered by public funding. Thirty seven patients (6.8% of 546) conceived without assisted reproduction. Assisted reproduction at public fertility clinics in Norway is as effective as that in our neighbouring countries. Over the past 18 years, the effectiveness of assisted reproduction has increased by about 50%.

  19. Examining Summer Laboratory Research Apprenticeships for High School Students as a Factor in Entry to MD/PhD Programs at Matriculation. (United States)

    Tai, Robert H; Kong, Xiaoqing; Mitchell, Claire E; Dabney, Katherine P; Read, Daniel M; Jeffe, Donna B; Andriole, Dorothy A; Wathington, Heather D


    Do summer laboratory research apprenticeships during high school have an impact on entry into MD/PhD programs? Apart from the nearly decade-long span of time between high school and matriculation into an MD/PhD program, young people have many life-shaping experiences that presumably impact their education and career trajectories. This quantitative study (n = 236,432) examines the connection between early laboratory research apprenticeship experiences at the high school level and matriculation into one of the more rigorous educational programs for scientific research training. The span of time covered by this analysis reaches across more than a decade, examining the potential importance of research experiences during the precollege years in the educational trajectory of young people. Intertwined with this question on research experiences is a second major concern regarding diversity in the life sciences research corps. Diversity in this wide-ranging discipline refers specifically to the underrepresentation of Blacks/African Americans, Hispanics/Latino/as, and American Indians/Alaska Natives among the ranks of research scientists. Thus, this study includes analyses that specifically focus on research apprenticeships of Blacks/African Americans and Hispanics/Latino/as and their entrance into MD/PhD programs. © 2017 R. H. Tai et al. CBE—Life Sciences Education © 2017 The American Society for Cell Biology. This article is distributed by The American Society for Cell Biology under license from the author(s). It is available to the public under an Attribution–Noncommercial–Share Alike 3.0 Unported Creative Commons License (

  20. Life Cycle Cost Analysis Handbook. First Edition. (United States)

    Alaska State Dept. of Education and Early Development, Juneau.

    This handbook presents guidelines on the Life Cycle Cost Analysis (LCCA) of building operations over the life of a building to assist school districts and consultants with evaluating proposed educational facility construction projects. It defines the terminology found in an LCCA, such as initial and future expenses, residual value, real discount…

  1. Heparin for assisted reproduction. (United States)

    Akhtar, Muhammad A; Sur, Shyamaly; Raine-Fenning, Nick; Jayaprakasan, Kannamannadiar; Thornton, Jim G; Quenby, Siobhan


    heterogeneity). There was also a significant improvement in the clinical pregnancy rate with use of LMWH (OR 1.61, 95% CI 1.03 to 2.53, three studies, 386 women, I(2) = 29%, very low quality evidence with low heterogeneity).However these findings should be interpreted with extreme caution as they were dependent upon the choice of statistical method: they were no longer statistically significant when a random-effects model was used.Adverse events were poorly reported in all included studies, with no comparative data available. However, LMWH did cause adverse effects including bruising, ecchymosis, bleeding, thrombocytopenia and allergic reactions. It appeared that these adverse effects were increased if heparin therapy was used over a longer duration. The results of this Cochrane review of three randomised controlled trials with a total of 386 women suggested that peri-implantation LMWH in assisted reproduction treatment (ART) cycles may improve the live birth rate in women undergoing assisted reproduction. However, these results were dependent on small low quality studies with substantial heterogeneity, and were sensitive to the choice of statistical model. There were side effects reported with use of heparin, including bruising and bleeding, and no reliable data on long-term effects. The results do not justify this use of heparin outside well-conducted research trials.These findings need to be further investigated with well-designed, adequately powered, double-blind, randomised, placebo-controlled, multicentre trials. Further investigations could also focus on the effects of the local (uterine) and not systemic application of heparin during ART.

  2. 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)


    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

  3. Learning through inter- and intradisciplinary problem solving: using cognitive apprenticeship to analyse doctor-to-doctor consultation. (United States)

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


    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.

  4. CERN apprenticeships honoured at the Cité des Métiers

    CERN Multimedia


    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...

  5. Homelessness Assistance and Resources (United States)

    ... Email Updates Need Housing Assistance? Home Homelessness Assistance Homelessness Assistance Programs CoC CoC Program Page NOFAs Laws, ... VI UT VT VA WA WV WI WY Homelessness Declines in Most Communities of the U.S. with ...

  6. Life-Cycle Costing. Educational Facilities Digest 5. (United States)

    Piele, Philip K.; Wright, Darrell

    Life-cycle costing is a management tool that may assist school administrators in making cost-effective decisions about building and improving school facilities. Life-cycle costing is defined as determining the total cost of building construction, operation, and maintenance over the assumed life of the building. An overview of the recent literature…

  7. `I Actually Contributed to Their Research': The influence of an abbreviated summer apprenticeship program in science and engineering for diverse high-school learners (United States)

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


    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 practices within working university chemistry and engineering laboratories. The experience was supplemented by discussions and activities intended to impact nature of science (NOS) and inquiry understandings and to allow for an exploration of STEM careers and issues of self-identity. Participants completed a NOS questionnaire before and after the experience, were interviewed multiple times, and were observed while working in the laboratories. Findings revealed that as a result of the program, participants (1) demonstrated positive changes in their understandings of certain NOS aspects many of which were informed by their laboratory experiences, (2) had an opportunity to explore and strengthen STEM-related future plans, and (3) examined their self-identities. A majority of participants also described a sense of belonging within the laboratory groups and believed that they were making significant contributions to the ongoing work of those laboratories even though their involvement was necessarily limited due to the short duration of the program. For students who were most influenced by the program, the belonging they felt was likely related to issues of identity and career aspirations.

  8. Essays on economic cycles

    NARCIS (Netherlands)

    Groot, de E.A. (Bert)


    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

  9. Reducing multiple births in assisted reproduction technology. (United States)

    Bhattacharya, Siladitya; Kamath, Mohan S


    Multiple pregnancy, a complication of assisted reproduction technology, is associated with poorer maternal and perinatal outcomes. The primary reason behind this is the strategy of replacing more than one embryo during an assisted reproduction technology cycle to maximise pregnancy rates. The solution to this problem is to reduce the number of embryos transferred during in-vitro fertilisation. The transition from triple- to double-embryo transfer, which decreased the risk of triplets without compromising pregnancy rates, was easily implemented. The adoption of a single embryo transfer policy has been slow because of concerns about impaired pregnancy rates in a fresh assisted reproduction technology cycle. Widespread availability of effective cryopreservation programmes means that elective single embryo transfer, along with subsequent frozen embryo transfers, could provide a way forward. Any such strategy will need to consider couples' preferences and existing funding policies, both of which have a profound influence on decision making around embryo transfer. Copyright © 2013 Elsevier Ltd. All rights reserved.

  10. Solar Cycle 25: Another Moderate Cycle? (United States)

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


    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.

  11. Influence of Paternal Age on Assisted Reproduction Outcome (United States)


    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

  12. [Simulation-based training and OR apprenticeship for medical students : A prospective, randomized, single-blind study of clinical skills]. (United States)

    Ott, T; Schmidtmann, I; Limbach, T; Gottschling, P F; Buggenhagen, H; Kurz, S; Pestel, G


    Simulation-based training (SBT) has developed into an established method of medical training. Studies focusing on the education of medical students have used simulation as an evaluation tool for defined skills. A small number of studies provide evidence that SBT improves medical students' skills in the clinical setting. Moreover, they were strictly limited to a few areas, such as the diagnosis of heart murmurs or the correct application of cricoid pressure. Other studies could not prove adequate transferability from the skills gained in SBT to the patient site. Whether SBT has an effect on medical students' skills in anesthesiology in the clinical setting is controversial. To explore this issue, we designed a prospective, randomized, single-blind trial that was integrated into the undergraduate anesthesiology curriculum of our department during the second year of the clinical phase of medical school. This study intended to explore the effect of SBT on medical students within the mandatory undergraduate anesthesiology curriculum of our department in the operating room with respect to basic skills in anesthesiology. After obtaining ethical approval, the participating students of the third clinical semester were randomized into two groups: the SIM-OR group was trained by a 225 min long SBT in basic skills in anesthesiology before attending the operating room (OR) apprenticeship. The OR-SIM group was trained after the operating room apprenticeship by SBT. During SBT the students were trained in five clinical skills detailed below. Further, two clinical scenarios were simulated using a full-scale simulator. The students had to prepare the patient and perform induction of anesthesia, including bag-mask ventilation after induction in scenario 1 and rapid sequence induction in scenario 2. Using the five-point Likert scale, five defined skills were evaluated at defined time points during the study period. 1) application of the safety checklist, 2) application of

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

    KAUST Repository

    Kim, Youngdeuk


    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.

  14. Cycling in Sydney, Australia

    Directory of Open Access Journals (Sweden)

    Alexis Zander


    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.

  15. Life cycle assessment (LCA)

    DEFF Research Database (Denmark)

    Thrane, Mikkel; Schmidt, Jannick Andresen


    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....

  16. Menstrual Cycle Problems (United States)

    ... Read MoreDepression in Children and TeensRead MoreBMI Calculator Menstrual Cycle ProblemsFrom missed periods to painful periods, menstrual cycle problems are common, but usually not serious. Follow ...

  17. Cycling To Awareness. (United States)

    Kozak, Stan


    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…

  18. An Agricultural Apprenticeship Program for Youth in Trinidad, West Indies: Can it Meet the Caribbean’s Urgent Need for Younger Farmers?

    Directory of Open Access Journals (Sweden)

    Wayne G. Ganpat


    Full Text Available To address the aging farmer population in Trinidad, W.I., a situation common to the Caribbean region, a Youth Apprenticeship Program in Agriculture (YAPA was initiated. An assessment of its effectiveness was conducted in 2007. Results indicated that present trainees went into agriculture to make “additional” income and for self employment, with “contributing to national food security” being ranked lower. They were generally satisfied with the extent of field work, the experience gained and trainers’ knowledge and skills. However, they would leave agriculture if they received other employment opportunities or if they were not provided with key resources such as land and soft loans. Past YAPA trainees had significantly changed (p

  19. 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


    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

  20. The Solar Cycle

    Directory of Open Access Journals (Sweden)

    David H. Hathaway


    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. We examine a number of other solar activity indicators 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 that vary in association with the sunspots. We examine the characteristics of individual solar cycles including their maxima and minima, cycle periods and amplitudes, cycle shape, and the nature of active latitudes, hemispheres, and longitudes. We examine long-term variability including the Maunder Minimum, the Gleissberg Cycle, and the Gnevyshev–Ohl 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.

  1. “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


    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.

  2. Pharmaceutical costs of assisted reproduction in Spain. (United States)

    Lorente, Maria-Reyes; Hernández, Juana; Antoñanzas, Fernando


    Assisted reproduction is one of the health services currently being considered for possible limitation or exclusion from the public health services portfolio in Spain. One of the main reasons claimed for this is the impact on the budget for pharmaceutical expenditure. The objective of this study was to assess the significance of the pharmaceutical costs of assisted reproduction in Spain. This study focused on medical practice in Spain, and is based on the opinions of experts in assisted reproduction and the results provided by professional societies' publications. The reference year is 2012 and the setting was secondary care. We have included all existing pharmaceutical modalities for assisted reproduction, as well as the most common drug for each modality. We have considered the pharmaceutical cost per cycle for artificial insemination, in vitro fertilisation with or without intracytoplasmic sperm injection (IVF_ICSI), and cryotransfer and donated fresh oocytes reception. In Spain, artificial insemination has a pharmaceutical cost per cycle of between €69.36 and €873.79. This amounts to an average cycle cost of €364.87 for partner's sperm and €327.10 for donor sperm. The pharmaceutical cost of IVF_ICSI ranges between €278.16 and €1,902.66, giving an average cost per cycle of €1,139.65. In the case of cryotransfer and donated fresh oocytes reception, the pharmaceutical cost per cycle is between €22.61 and €58.73, yielding an average cost of €40.67. The budgetary impact of pharmaceutical expenditure for assisted reproduction in Spain for the year 2012 was estimated at €98.7 million. In Spain, the total pharmaceutical cost of assisted reproduction is substantial. According to our results, we can say that about 29% of the total pharmaceutical expenditure for assisted reproduction techniques is funded by the National Health System and the rest represents 2.4% of the total annual out-of-pocket family expenditure on drugs.

  3. (United States)

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

  4. Assisted Reproductive Technology (ART) (United States)

    ... Cancel Close Email Share Dialog × Print Assisted Reproductive Technology (ART) ART refers to treatments and procedures that ... American Society for Reproductive Medicine. (2015). Assisted reproductive technologies: A guide for patients . Retrieved May 31, 2016, ...

  5. The Solar Cycle

    Directory of Open Access Journals (Sweden)

    David H. Hathaway


    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.

  6. Weatherization Apprenticeship Program

    Energy Technology Data Exchange (ETDEWEB)

    Watson, Eric J


    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.

  7. [Apprenticeship in general medicine]. (United States)

    Brinkley, B; Frećhelin, E; Pilet, F


    Residency in general practice/family medicine in Switzerland is ridden with structural difficulties, and suffers from low prestige among trainees and hospital-based trainers. A more attractive postgraduate training is sought by a group of practitioners, through a common initiative with local governments, general practice associations and training sites.

  8. From Lecturing to Apprenticeship

    DEFF Research Database (Denmark)

    Marchetti, Emanuela; Petersson, Eva


    a group of primary school children. Results from this process suggest that museum learning practice could be enriched, by moving toward a more non-formal learning approach, in which children and adults are engaged together in shared problem solving. Moreover, introduction of play is envisioned......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...... as an effective framework to support shared problem solving, also allowing for a symmetric dialogue to emerge between children and adults...

  9. CERN apprenticeship scheme honoured

    CERN Multimedia


    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...

  10. Driving and engine cycles

    CERN Document Server

    Giakoumis, Evangelos G


    This book presents in detail the most important driving and engine cycles used for the certification and testing of new vehicles and engines around the world. It covers chassis and engine-dynamometer cycles for passenger cars, light-duty vans, heavy-duty engines, non-road engines and motorcycles, offering detailed historical information and critical review. The book also provides detailed examples from SI and diesel engines and vehicles operating during various cycles, with a focus on how the engine behaves during transients and how this is reflected in emitted pollutants, CO2 and after-treatment systems operation. It describes the measurement methods for the testing of new vehicles and essential information on the procedure for creating a driving cycle. Lastly, it presents detailed technical specifications on the most important chassis-dynamometer cycles around the world, together with a direct comparison of those cycles.

  11. Vuilleumier Cycle Cryogenic Refrigeration (United States)


    changing pressure to produce a cooling effect is similar to that of the cold section of the Stirling cycle refrigerator , since the method by which the...AFFDL-TR-76-17 VUILLEUMIER CYCLE CRYOGENIC REFRIGERATION ENVIRONMENTAL CONTROL BRANCH 4 VEHICLE EQUIPMENT DIVISION APRIL 1976 TECHNICAL REPORT AFFDL...WORDS (Continue on reverse side if necessary and identify by block number) Cryogenic Refrigerator Vuilleumier Cycle 20. ABSTRACT (Continue on reverse

  12. [Cycling in Zagreb]. (United States)

    Matos, Stipan; Krapac, Ladislav; Krapac, Josip


    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

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

    Directory of Open Access Journals (Sweden)

    Önder KIZILKAN


    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

  14. The nitrogen cycle

    National Research Council Canada - National Science Library

    Stein, Lisa Y; Klotz, Martin G


    .... Although such abiotic reactions are still important, the extant nitrogen cycle is driven by reductive fixation of dinitrogen and an enzyme inventory that facilitates dinitrogen-producing reactions...

  15. 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)


    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)

  16. Universal cycle periods

    NARCIS (Netherlands)

    Groot, de E.A. (Bert); Franses, P.H.P.H.


    We present a meta-analysis of cycles in historical economic data. The literature on stochastic and deterministic cycles in variables such as the consumer price index, employment, interest rates, commodity prices, and GDP is huge and scattered, but our meta-analysis reveals various communalities. Our

  17. Stability through cycles

    NARCIS (Netherlands)

    Groot, de E.A. (Bert); Franses, P.H.P.H.


    Economic variables like GDP growth, employment, interest rates and consumption show signs of cyclical behavior. Many variables display multiple cycles, with lengths ranging in between 5 to even up to 100 years. We argue that multiple cycles can be associated with long-run stability of the economic

  18. Life Cycle Environmental Management

    DEFF Research Database (Denmark)

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


    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...

  19. Teaching the Krebs Cycle. (United States)

    Akeroyd, F. Michael


    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. Rock Cycle Roulette. (United States)

    Schmidt, Stan M.; Palmer, Courtney


    Introduces an activity on the rock cycle. Sets 11 stages representing the transitions of an earth material in the rock cycle. Builds six-sided die for each station, and students move to the stations depending on the rolling side of the die. Evaluates students by discussing several questions in the classroom. Provides instructional information for…

  1. Life Cycle Impact Assessment

    DEFF Research Database (Denmark)

    Rosenbaum, Ralph K.; Hauschild, Michael Zwicky; Boulay, Anne-Marie


    This chapter is dedicated to the third phase of an LCA study, the Life Cycle Impact Assessment (LCIA) where the life cycle inventory’s information on elementary flows is translated into environmental impact scores. In contrast to the three other LCA phases, LCIA is in practice largely automated...

  2. Life cycle management (LCM)

    DEFF Research Database (Denmark)

    Remmen, Arne; Thrane, Mikkel


    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....

  3. Seeing the Carbon Cycle (United States)

    Drouin, Pamela; Welty, David J.; Repeta, Daniel; Engle-Belknap, Cheryl A.; Cramer, Catherine; Frashure, Kim; Chen, Robert


    In this article, the authors present a classroom experiment that was developed to introduce middle school learners to the carbon cycle. The experiment deals with transfer of CO[subscript 2] between liquid reservoirs and the effect CO[subscript 2] has on algae growth. It allows students to observe the influence of the carbon cycle on algae growth,…

  4. The carbon cycle revisited (United States)

    Bolin, Bert; Fung, Inez


    Discussions during the Global Change Institute indicated a need to present, in some detail and as accurately as possible, our present knowledge about the carbon cycle, the uncertainties in this knowledge, and the reasons for these uncertainties. We discuss basic issues of internal consistency within the carbon cycle, and end by summarizing the key unknowns.

  5. Power Plant Cycling Costs

    Energy Technology Data Exchange (ETDEWEB)

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


    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.

  6. Assistance Focus: Africa (Brochure)

    Energy Technology Data Exchange (ETDEWEB)


    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.

  7. Turning assistive machines into assistive robots (United States)

    Argall, Brenna D.


    For decades, the potential for automation in particular, in the form of smart wheelchairs to aid those with motor, or cognitive, impairments has been recognized. It is a paradox that often the more severe a person's motor impairment, the more challenging it is for them to operate the very assistive machines which might enhance their quality of life. A primary aim of my lab is to address this confound by incorporating robotics autonomy and intelligence into assistive machines turning the machine into a kind of robot, and offloading some of the control burden from the user. Robots already synthetically sense, act in and reason about the world, and these technologies can be leveraged to help bridge the gap left by sensory, motor or cognitive impairments in the users of assistive machines. This paper overviews some of the ongoing projects in my lab, which strives to advance human ability through robotics autonomy.

  8. Climate and the Carbon Cycle (United States)

    Manley, Jim


    Climate and the Carbon Cycle EOS3a Science in tomorrow's classroom Students, like too much of the American public, are largely unaware or apathetic to the changes in world climate and the impact that these changes have for life on Earth. A study conducted by Michigan State University and published in 2011 by Science Daily titled 'What carbon cycle? College students lack scientific literacy, study finds'. This study relates how 'most college students in the United States do not grasp the scientific basis of the carbon cycle - an essential skill in understanding the causes and consequences of climate change.' The study authors call for a new approach to teaching about climate. What if teachers better understood vital components of Earth's climate system and were able to impart his understanding to their students? What if students based their responses to the information taught not on emotion, but on a deeper understanding of the forces driving climate change, their analysis of the scientific evidence and in the context of earth system science? As a Middle School science teacher, I have been given the opportunity to use a new curriculum within TERC's EarthLabs collection, Climate and the Carbon Cycle, to awaken those brains and assist my students in making personal lifestyle choices based on what they had learned. In addition, with support from TERC and The University of Texas Institute for Geophysics I joined others to begin training other teachers on how to implement this curriculum in their classrooms to expose their students to our changing climate. Through my poster, I will give you (1) a glimpse into the challenges faced by today's science teachers in communicating the complicated, but ever-deepening understanding of the linkages between natural and human-driven factors on climate; (2) introduce you to a new module in the EarthLabs curriculum designed to expose teachers and students to global scientific climate data and instrumentation; and (3) illustrate how

  9. Applied physiology of cycling. (United States)

    Faria, I E


    Historically, the bicycle has evolved through the stages of a machine for efficient human transportation, a toy for children, a finely-tuned racing machine, and a tool for physical fitness development, maintenance and testing. Recently, major strides have been made in the aerodynamic design of the bicycle. These innovations have resulted in new land speed records for human powered machines. Performance in cycling is affected by a variety of factors, including aerobic and anaerobic capacity, muscular strength and endurance, and body composition. Bicycle races range from a 200m sprint to approximately 5000km. This vast range of competitive racing requires special attention to the principle of specificity of training. The physiological demands of cycling have been examined through the use of bicycle ergometers, rollers, cycling trainers, treadmill cycling, high speed photography, computer graphics, strain gauges, electromyography, wind tunnels, muscle biopsy, and body composition analysis. These techniques have been useful in providing definitive data for the development of a work/performance profile of the cyclist. Research evidence strongly suggests that when measuring the cyclist's aerobic or anaerobic capacity, a cycling protocol employing a high pedalling rpm should be used. The research bicycle should be modified to resemble a racing bicycle and the cyclist should wear cycling shoes. Prolonged cycling requires special nutritional considerations. Ingestion of carbohydrates, in solid form and carefully timed, influences performance. Caffeine appears to enhance lipid metabolism. Injuries, particularly knee problems which are prevalent among cyclists, may be avoided through the use of proper gearing and orthotics. Air pollution has been shown to impair physical performance. When pollution levels are high, training should be altered or curtailed. Effective training programmes simulate competitive conditions. Short and long interval training, blended with long

  10. Life Cycle Management

    DEFF Research Database (Denmark)

    Bey, Niki


    This chapter gives an overview of Life Cycle Management (LCM)—a discipline that deals with the managerial tasks related to practicing sustainable development in an organisation . Just as Life Cycle Assessment, LCM advocates the life cycle perspective , and it applies this perspective in decision......-making processes. The chapter shows that LCA can play a key role in LCM since LCA provides quantitative performance measurements. It also explains, which stakeholders need to be considered, how LCA and LCM relate, how LCA can be used to develop Key Performance Indicators, and addresses how LCM can be integrated...

  11. Political Budget Cycles

    DEFF Research Database (Denmark)

    Aaskoven, Lasse; Lassen, David Dreyer


    The political budget cycle—how elections affect government fiscal policy—is one of the most studied subjects in political economy and political science. The key theoretical question is whether incumbent governments can time or structure public finances in ways that improve their chances...... on political budget cycles have recently focused on conditions under which such cycles are likely to obtain. Much recent research focuses on subnational settings, allowing comparisons of governments in similar institutional environments, and a consensus on the presences of cycles in public finances......—and in the reporting of public finances—is beginning to emerge....



    T. W. Charpe; Rathod, V. K.


    Abstract Ultrasound assisted extraction of wedelolactone, a major coumestan present in Eclipta alba, is investigated in the present work.Various process parameters such as type of solvent, power, solvent to solid ratio and extraction temperature, which affect the extraction yield, are optimized. In the ultrasound-assisted extraction with final optimized conditions, i.e., methanol as solvent, 170 W power, 60:1 solvent to solid ratio, 50 °C temperature and 60% duty cycle, amaximum extraction yi...

  13. Skeletal and Clinical Effects of Exoskeleton-Assisted Gait (United States)


    achieved. The result consists of 1) muscle lines of action and activation forces during the gait cycle , 2) joint contact forces at the ankle, knee, and...AWARD NUMBER: W81XWH-14-1-0611 TITLE: Skeletal and Clinical Effects of Exoskeleton-Assisted Gait PRINCIPAL INVESTIGATOR: Paolo Bonato, PhD...AND SUBTITLE 5a. CONTRACT NUMBER Skeletal and Clinical Effects of Exoskeleton-Assisted Gait 5b. GRANT NUMBER W81XWH-14-1-0611 5c. PROGRAM ELEMENT

  14. Assisted suicide and euthanasia. (United States)

    van der Heide, Agnes


    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. © 2013 Elsevier B.V. All rights reserved.

  15. Training Teaching Assistants. (United States)

    Rava, Susan


    Washington University's (Missouri) Department of Romance Languages and Literature requires its graduate teaching assistants to take a one-semester pedagogy course to ensure their competence and effectiveness as teaching assistants. The course features seminars in which goals, expectations, and learning theories are discussed and practice teaching…

  16. Agricultural Disaster Assistance (United States)


    ineligible for crop insurance, and include mushrooms, floriculture , ornamental nursery, Christmas tree crops , turfgrass sod, aquaculture, and ginseng. Trees...federal crop insurance, the noninsured assistance program and emergency disaster loans. Since 1988, Congress regularly has made supplemental financial...assistance available to farmers and ranchers on an ad-hoc basis, primarily in the form of direct crop disaster payments and emergency livestock

  17. Federal disaster assistance programs (United States)

    William J. Patterson


    The Robert T. Stafford Disaster Relief and Emergency Assistance Act—Public Law 93-288, as amended—is designed to provide support and assistance to citizens, state, and local government from catastrophic disasters and emergencies. The law provides support in three distinct phases, including preparedness in avoiding or minimizing the effect of a disaster, response...

  18. Service water assistance program

    Energy Technology Data Exchange (ETDEWEB)

    Munchausen, J.H. [EPRI Plant Support Engineering, Charlotte, NC (United States)


    The Service Water Assistance Program was developed to provide utility service water system engineers with a mechanism to quickly and efficiently address service water issues. Since its inception, its ability to assist utilities has resulted in a reduction in the operations and maintenance costs associated with service water systems and has provided a medium for EPRI awareness of industry service water issues.

  19. Assistive Technology (Moldinclud)


    Luján Mora, Sergio


    Slides of the seminar "Assistive Technology" taught at the Institul de Stat de Instruire Continua (Chisinau, Moldova) in november 2011. Transparencias del seminario "Assistive Technology" impartido en el Institul de Stat de Instruire Continua (Chisinau, Moldavia) en noviembre 2011. Tempus project: MOLDINCLUD, Teaching Training Centre for Inclusive Education (TEMPUS 158980-2009).

  20. Social Assistance: Theoretical Underpinnings

    African Journals Online (AJOL)


    Minas Hiruy. 90. Reflections: Social assistance: theoretical underpinnings. Minas Hiruy. 1. Key words: marginalized community, social assistance, social welfare, MDGs, development. The case of the marginalized and how society regarded or responded to the same has played a significant part in shaping human history ...

  1. Product Life Cycle Planning

    National Research Council Canada - National Science Library

    Walaszek, Jeffrey


    .... This phase of work was undertaken to: (1) provide guidelines, technical support, and planning approaches for researchers that result in realistic life cycle plans for products emerging from the RSM...

  2. The Rock Cycle (United States)

    Singh, Raman J.; Bushee, Jonathan


    Presents a rock cycle diagram suitable for use at the secondary or introductory college levels which separates rocks formed on and below the surface, includes organic materials, and separates products from processes. (SL)

  3. Cycles in graphs

    CERN Document Server

    Alspach, BR


    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.

  4. Traffic Signal Cycle Lengths (United States)

    Town of Chapel Hill, North Carolina — Traffic signal location list for the town of Chapel Hill. This data set includes light cycle information as well as as intersection information.The Town of Chapel...

  5. Life Cycle Costing. (United States)

    McCraley, Thomas L.


    Life cycle costing establishes a realistic comparison of the cost of owning and operating products. The formula of initial cost plus maintenance plus operation divided by useful life identifies the best price over the lifetime of the product purchased. (MLF)

  6. Solar Cycle Prediction

    Directory of Open Access Journals (Sweden)

    Kristóf Petrovay


    Full Text Available A review of solar cycle prediction methods and their performance is given, including forecasts for cycle 24. The review focuses on those 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 variations are the same at any point of time and, therefore, it lends itself to analysis and forecasting by time series methods. Finally, instead of an analysis of observational data alone, model based predictions use physically (more or less consistent dynamo models in their attempts to predict solar activity. In their overall performance during the course of the last few solar cycles, precursor methods have clearly been superior to extrapolation methods. Nevertheless, most precursor methods overpredicted cycle 23, while some extrapolation methods may still be worth further study. Model based forecasts have not yet had a chance to prove their skills. One method that has yielded predictions consistently in the right range during the past few solar cycles is that of K. Schatten et al., whose approach is mainly based on the polar field precursor. The incipient cycle 24 will probably mark the end of the Modern Maximum, with the Sun

  7. Menstrual Cycle: Basic Biology


    Hawkins, Shannon M.; Matzuk, Martin M.


    The basic biology of the menstrual cycle is a complex, coordinated sequence of events involving the hypothalamus, anterior pituitary, ovary, and endometrium. The menstrual cycle with all its complexities can be easily perturbed by environmental factors such as stress, extreme exercise, eating disorders, and obesity. Furthermore, genetic influences such as fragile X premutations (Chapter X), X chromosome abnormalities (Chapter X), and galactose-1-phosphate uridyltransferase (GALT) point mutati...

  8. Quantifying the Adaptive Cycle.

    Directory of Open Access Journals (Sweden)

    David G Angeler

    Full Text Available 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.

  9. Quantifying the adaptive cycle (United States)

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


    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.

  10. Contributions for the measurement of the impact of the training for work policy: A proposal for the assessment of the apprenticeship contract in Colombia

    Directory of Open Access Journals (Sweden)

    Juan Carlos Segura Ortiz


    Full Text Available The apprenticeship contract (AC is a training for work strategy that combines training in vocational aspects with a practical phase in a company. This dual training model presents advantages in terms of the improvement of workers’ employability perspectives and income, together with a reduced employee selection risk. Given the formal purpose of this training instrument in Colombia, there is an interest in evaluating its results in order to improve and correct the instrument’s current performance and to optimize its effective impact. Here, the authors offer a proposal for the assessment of the impact of ACs, based on the measurement of differences in levels of income of individuals who, having chosen technical vocational training, chose this contract as an alternative in the process’ practical phase. The text also includes a review of the relevant literature on AC, a description of the type of statistical model that has to be used in the evaluation, and a description of the data necessary to help the company advance.

  11. Rapid Cycling and Its Treatment (United States)

    ... Announcements Public Service Announcements Partnering with DBSA Rapid Cycling and its Treatment What is bipolar disorder? Bipolar ... to Depression and Manic Depression . What is rapid cycling? Rapid cycling is defined as four or more ...

  12. The Effect of Cycling Intensity on Cycling Economy During Seated and Standing Cycling. (United States)

    Arkesteijn, Marco; Jobson, Simon; Hopker, James; Passfield, Louis


    Previous research has shown that cycling in a standing position reduces cycling economy compared with seated cycling. It is unknown whether the cycling intensity moderates the reduction in cycling economy while standing. The aim was to determine whether the negative effect of standing on cycling economy would be decreased at a higher intensity. Ten cyclists cycled in 8 different conditions. Each condition was either at an intensity of 50% or 70% of maximal aerobic power at a gradient of 4% or 8% and in the seated or standing cycling position. Cycling economy and muscle activation level of 8 leg muscles were recorded. There was an interaction between cycling intensity and position for cycling economy (P = .03), the overall activation of the leg muscles (P = .02), and the activation of the lower leg muscles (P = .05). The interaction showed decreased cycling economy when standing compared with seated cycling, but the difference was reduced at higher intensity. The overall activation of the leg muscles and the lower leg muscles, respectively, increased and decreased, but the differences between standing and seated cycling were reduced at higher intensity. Cycling economy was lower during standing cycling than seated cycling, but the difference in economy diminishes when cycling intensity increases. Activation of the lower leg muscles did not explain the lower cycling economy while standing. The increased overall activation, therefore, suggests that increased activation of the upper leg muscles explains part of the lower cycling economy while standing.

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

  14. Robotic assisted laparoscopic colectomy.

    LENUS (Irish Health Repository)

    Pandalai, S


    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.

  15. 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


    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

  16. Development of life cycle assessment methodology: a focus on co-product allocation

    NARCIS (Netherlands)

    M.A. Curran (Mary Ann)


    textabstractLife Cycle Assessment (LCA) is a developing tool that can assist decision-makers in evaluating the comparative potential cradle-to-grave, environmental impacts of their actions in order to prevent unintended consequences. The LCA tool is designed to assist in the evaluation along the

  17. Helium process cycle (United States)

    Ganni, Venkatarao


    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.

  18. MHD Integrated Topping Cycle Project

    Energy Technology Data Exchange (ETDEWEB)


    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.

  19. The global sulfur cycle (United States)

    Sagan, D. (Editor)


    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.

  20. CO2 cycle (United States)

    Titus, Timothy N.; Byrne, Shane; Colaprete, Anthony; Forget, Francois; Michaels, Timothy I.; Prettyman, Thomas H.


    This chapter discusses the use of models, observations, and laboratory experiments to understand the cycling of CO2 between the atmosphere and seasonal Martian polar caps. This cycle is primarily controlled by the polar heat budget, and thus the emphasis here is on its components, including solar and infrared radiation, the effect of clouds (water- and CO2-ice), atmospheric transport, and subsurface heat conduction. There is a discussion about cap properties including growth and regression rates, albedos and emissivities, grain sizes and dust and/or water-ice contamination, and curious features like cold gas jets and araneiform (spider-shaped) terrain. The nature of the residual south polar cap is discussed as well as its long-term stability and ability to buffer atmospheric pressures. There is also a discussion of the consequences of the CO2 cycle as revealed by the non-condensable gas enrichment observed by Odyssey and modeled by various groups.

  1. Assisted Reproductive Technology (ART) (United States)

    ... com/wp-content/uploads/2016/04/third-party-reproduction-booklet.pdf (PDF - 902 KB) [top] American Society for Reproductive Medicine. (2015). Assisted reproductive technologies: A guide for patients . Retrieved May ...

  2. Superfund Technical Assistance Grants (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,...

  3. Accessibility and assistive products (United States)

    Rodríguez-Porrero, Cristina


    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.

  4. CDC-reported assisted reproductive technology live-birth rates may mislead the public. (United States)

    Kushnir, Vitaly A; Choi, Jennifer; Darmon, Sarah K; Albertini, David F; Barad, David H; Gleicher, Norbert


    The Centre for Disease Control and Prevention (CDC) publicly reports assisted reproductive technology live-birth rates (LBR) for each US fertility clinic under legal mandate. The 2014 CDC report excluded 35,406 of 184,527 (19.2%) autologous assisted reproductive technology cycles that involved embryo or oocyte banking from LBR calculations. This study calculated 2014 total clinic LBR for all patients utilizing autologous oocytes two ways: including all initiated assisted reproductive technology cycles or excluding banking cycles, as done by the CDC. The main limitation of this analysis is the CDC report did not differentiate between cycles involving long-term banking of embryos or oocytes for fertility preservation from cycles involving short-term embryo banking. Twenty-seven of 458 (6%) clinics reported over 40% of autologous cycles involved banking, collectively performing 12% of all US assisted reproductive technology cycles. LBR in these outlier clinics calculated by the CDC method, was higher than the other 94% of clinics (33.1% versus 31.1%). However, recalculated LBR including banking cycles in the outlier clinics was lower than the other 94% of clinics (15.5% versus 26.6%). LBR calculated by the two methods increasingly diverged based on proportion of banking cycles performed by each clinic reaching 4.5-fold, thereby, potentially misleading the public. Copyright © 2017 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.

  5. Computer Security Assistance Program (United States)


    Information COMPUTER SECURITY ASSISTANCE PROGRAM OPR: HQ AFCA/SYS (CMSgt Hogan) Certified by: HQ USAF/SCXX (Lt Col Francis X. McGovern) Pages: 5...Distribution: F This instruction implements Air Force Policy Directive (AFPD) 33-2, Information Protection, establishes the Air Force Computer Security Assistance...Force single point of contact for reporting and handling computer security incidents and vulnerabilities including AFCERT advisories and Defense

  6. Revenue cycle management. (United States)

    Manley, Ray; Satiani, Bhagwan


    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.

  7. 77 FR 38766 - Proposed Information Collection; Comment Request; International Client Life-Cycle Multi-Purpose... (United States)


    ... International Client Life-cycle Multi-Purpose Forms, previously titled Export Assistance Center Internet Web... International Trade Administration Proposed Information Collection; Comment Request; International Client Life-Cycle Multi-Purpose Forms AGENCY: International Trade Administration. ACTION: Notice. SUMMARY: The...

  8. Assisted reproductive technology in South Africa: First results ...

    African Journals Online (AJOL)

    Methods. All assisted reproductive technology (ART) centres in South Africa were invited to join the register. Participant centres voluntarily submitted information from 2009 on the number of ART cycles, embryo transfers, clinical pregnancies, age of female partners or egg donors, and use of fertilisation techniques.

  9. Menstrual cycle pattern and fertility

    DEFF Research Database (Denmark)

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


    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....

  10. 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...


    Directory of Open Access Journals (Sweden)

    Ignat Ion


    Full Text Available The construction of European Monetary Union has raised several questions about the existence of a common business cycle, a European one. The lack of cyclical synchronization would complicate the monetary and fiscal policies in the Union, being a negative

  12. Reasoning with Causal Cycles (United States)

    Rehder, Bob


    This article assesses how people reason with categories whose features are related in causal cycles. Whereas models based on causal graphical models (CGMs) have enjoyed success modeling category-based judgments as well as a number of other cognitive phenomena, CGMs are only able to represent causal structures that are acyclic. A number of new…

  13. LIFE-CYCLE ASSESSMENT (United States)

    Life Cycle Assessment, or LCA, is an environmental accounting and mangement approach that consider all the aspects of resource use and environmental releases associated with an industrial system from cradle-to-grave. Specifically, it is a holistic view of environmental interacti...

  14. The Degree Cycle

    DEFF Research Database (Denmark)

    Wood, Johanna


    The grammaticalization of the demonstratives this, that and thus are investigated with respect to their functions as degree adverbs using empirical data from dictionaries and historical and modern corpora. It is first argued that thus participates in the CP cycle. With respect to this and that...

  15. 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...

  16. Econometric Business Cycle Research

    NARCIS (Netherlands)

    J. Tinbergen (Jan)


    textabstractAlso published in: G. Haberler (Ed.), Readings in Business Cycles Theory, Blakiston, Philadelphia, 1944, pp. 61-86, in: Adrian C. Darnell (Ed.), The History of Econometrics, Vol. 2, Edward Elgar, Aldershot, 1994, pp. 230-247 and in: David F. Hendry and Mary S. Morgan (Eds), The

  17. Mosquito Life Cycle (United States)

    Knowing the stages of the mosquito's life will help you prevent mosquitoes around your home and help you choose the right pesticides for your needs, if you decide to use them. All mosquito species go through four distinct stages during their live cycle.

  18. Big Data and Cycling

    NARCIS (Netherlands)

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


    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

  19. The Pneumocystis life cycle

    Directory of Open Access Journals (Sweden)

    Cécile-Marie Aliouat-Denis


    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.

  20. Life Cycle Collection Management

    Directory of Open Access Journals (Sweden)

    Helen Shenton


    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.

  1. Apoptosis and cell cycle

    Directory of Open Access Journals (Sweden)

    Petrović Marija


    Full Text Available Apoptosis, a form of programmed cell death, is used to eliminate individual cells surrounded by normal cell population. It is a controlled way of cell death in which the cell actively participates by conducting precise, gene-regulated program of self-destruction, that is, cell 'suicide.' Active synthesis of macromolecules is necessary during this process. Death of individual cells is necessary to maintain a balance in living systems, so the process of apoptosis is continuously present in the body, which allows normal development, tissue homeostasis, and many other physiological processes. The molecular mechanisms that regulate apoptosis are functionally linked to other cellular mechanisms, such as control of the cell cycle, cell proliferation and differentiation, genomic stability and cellular metabolism. Damage to the DNA molecule, caused both spontaneously and under the influence of various chemical and physical agents, leads to the cell cycle arrest and activation of mechanisms that repair the damage. Depending on the type and extent of the damage, the cell either continues progression through the cell cycle, or activates the mechanisms that lead to apoptosis. Disturbances in the regulation of apoptosis and cell cycle present the molecular and biological basis of many diseases. Because of the importance of these processes during the development and progression of tumors, their use as biological markers is one of the main strategies in the formation of therapeutic approaches for the treatment of cancer.

  2. Privatization and nationalization cycles


    Chang, Roberto; Hevia, Constantino; Loayza, Norman


    This paper studies the cycles of nationalization and privatization in resource-rich economies as a prime instance of unstable institutional reform. The authors discuss the available evidence on the drivers and consequences of privatization and nationalization, review the existing literature, and present illustrative case studies. This leads to the main contribution of the paper: a static a...

  3. Re-Cycling (United States)

    Brown, Robert W.; Covault, Corbin E.


    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…

  4. The Science of Cycling (United States)

    Crompton, Zoe; Daniels, Shelley


    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…

  5. The Geologic Nitrogen Cycle (United States)

    Johnson, B. W.; Goldblatt, C.


    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

  6. 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


    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.

  7. Mobile Autonomous Humanoid Assistant (United States)

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


    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.

  8. Archaea in biogeochemical cycles. (United States)

    Offre, Pierre; Spang, Anja; Schleper, Christa


    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.

  9. Life Cycle Sustainability Dashboard

    DEFF Research Database (Denmark)

    Traverso, Marzia; Finkbeiner, Matthias; Jørgensen, Andreas


    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...... or to support decision making toward sustainable production and consumption. In both cases, LCSA results could be too disaggregated and consequently too difficult to understand and interpret by decision makers. As non-experts are usually the target audience of experts and scientists, and are also involved...... in decision-making processes, the necessity for a straightforward but comprehensive presentation of LCSA results is becoming strategically important. The implementation of the dashboard of sustainability proposed in this article offers a possible solution. An outstanding characteristic of the dashboard...

  10. Characteristics of track cycling. (United States)

    Craig, N P; Norton, K I


    Track cycling events range from a 200 m flying sprint (lasting 10 to 11 seconds) to the 50 km points race (lasting approximately 1 hour). Unlike road cycling competitions where most racing is undertaken at submaximal power outputs, the shorter track events require the cyclist to tax maximally both the aerobic and anaerobic (oxygen independent) metabolic pathways. Elite track cyclists possess key physical and physiological attributes which are matched to the specific requirements of their events: these cyclists must have the appropriate genetic predisposition which is then maximised through effective training interventions. With advances in technology it is now possible to accurately measure both power supply and demand variables under competitive conditions. This information provides better resolution of factors that are important for training programme design and skill development.

  11. Carbon cycle makeover

    DEFF Research Database (Denmark)

    Canfield, Donald Eugene; Kump, Lee R.


    In 1845, the French chemist and mining engineer Jacques-Joseph Ebelman figured out why Earth's atmosphere contains oxygen (1). Oxygen is produced by plants during photosynthesis, but almost all of this oxygen is used again in respiration. Ebelman reasoned that small amounts of organic matter rema...... 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....... 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...

  12. Cycling and erectile dysfunction

    Directory of Open Access Journals (Sweden)

    Ina Šibli


    Full Text Available Abstract: For many years medical studies have implicated bicycle riding is causing erectile dysfunction (ED in association with higher perineal pressure. This review focuses upon epidemiological studies assesing the impact of cycling on ED, pathogenesis of ED in cyclists  as well as on research considering changes of perineal pressure, hemodynamics, and nerve conduction when cycling. Investigestors were also interested in different saddle sizes, materials and geometry and also in the impact of saddle and riders position on changes to the perineum. Research on female cyclists is very limited but indicates similar genitourinary disorders as in male cyclists. We also review  research on preventative and therapeutic options regarding bicycle riding and ED.

  13. Assessing Cycling Participation in Australia

    Directory of Open Access Journals (Sweden)

    Chris Rissel


    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.

  14. [Microbial geochemical calcium cycle]. (United States)

    Zavarzin, G A


    The participation of microorganisms in the geochemical calcium cycle is the most important factor maintaining neutral conditions on the Earth. This cycle has profound influence on the fate of inorganic carbon, and, thereby, on the removal of CO2 from the atmosphere. The major part of calcium deposits was formed in the Precambrian, when prokaryotic biosphere predominated. After that, calcium recycling based on biogenic deposition by skeletal organisms became the main process. Among prokaryotes, only a few representatives, e.g., cyanobacteria, exhibit a special calcium function. The geochemical calcium cycle is made possible by the universal features of bacteria involved in biologically mediated reactions and is determined by the activities of microbial communities. In the prokaryotic system, the calcium cycle begins with the leaching of igneous rock predominantly through the action of the community of organotrophic organisms. The release of carbon dioxide to the soil air by organotrophic aerobes leads to leaching with carbonic acid and soda salinization. Under anoxic conditions, of major importance is the organic acid production by primary anaerobes (fermentative microorganisms). Calcium carbonate is precipitated by secondary anaerobes (sulfate reducers) and to a smaller degree by methanogens. The role of the cyanobacterial community in carbonate deposition is exposed by stromatolites, which are the most common organo-sedimentary Precambrian structures. Deposition of carbonates in cyanobacterial mats as a consequence of photoassimilation of CO2 does not appear to be a significant process. It is argued that carbonates were deposited at the boundary between the "soda continent", which emerged as a result of subaerial leaching with carbonic acid, and the ocean containing Ca2+. Such ecotones provided favorable conditions for the development of the benthic cyanobacterial community, which was a precursor of stromatolites.

  15. Unemployment and Business Cycles


    Lawrence J. Christiano; Martin Eichenbaum; Mathias Trabandt


    We develop and estimate a general equilibrium search and matching model that accounts for key business cycle properties of macroeconomic aggregates, including labor market variables. In sharp contrast to leading New Keynesian models, we do not impose wage inertia. Instead we derive wage inertia from our specification of how firms and workers negotiate wages. Our model outperforms a variant of the standard New Keynesian Calvo sticky wage model. According to our estimated model, there is a crit...

  16. 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...... upward sloping labordemand schedules. Its distinctive characteristic is that the skillcomposition of aggregate labor demand drives expansionary i.i.d.demand shocks. Next, the model explains the labor market dynamicsfrom the supply side, while endogenizing the capital productivityresponse to changes...

  17. Injuries in Competitive Cycling. (United States)

    Bohlmann, J T


    In brief: There are relatively few injuries in competitive cycling, and abrasions are the most common. In this study most injuries occurred to the left side of the cyclist, and most common causes were flat tires and colliding with other cyclists. The number of injuries decreased as the cyclist gained more experience. Preventive measures include keeping the bicycle in top mechanical condition, wearing strong, durable clothing and a helmet, and knowing how to fall.

  18. Centrifugal Gas Compression Cycle (United States)

    Fultun, Roy


    A centrifuged gas of kinetic, elastic hard spheres compresses isothermally and without flow of heat in a process that reverses free expansion. This theorem follows from stated assumptions via a collection of thought experiments, theorems and other supporting results, and it excludes application of the reversible mechanical adiabatic power law in this context. The existence of an isothermal adiabatic centrifugal compression process makes a three-process cycle possible using a fixed sample of the working gas. The three processes are: adiabatic mechanical expansion and cooling against a piston, isothermal adiabatic centrifugal compression back to the original volume, and isochoric temperature rise back to the original temperature due to an influx of heat. This cycle forms the basis for a Thomson perpetuum mobile that induces a loop of energy flow in an isolated system consisting of a heat bath connectable by a thermal path to the working gas, a mechanical extractor of the gas's internal energy, and a device that uses that mechanical energy and dissipates it as heat back into the heat bath. We present a simple experimental procedure to test the assertion that adiabatic centrifugal compression is isothermal. An energy budget for the cycle provides a criterion for breakeven in the conversion of heat to mechanical energy.

  19. Sales Assistants in the Making: Learning through Responsibility (United States)

    Reegård, Kaja


    The paper investigates how learning and processes of becoming are shaped and enacted in retail apprenticeship in Norway. The analysis draws upon a qualitative study of managers and apprentices in different retail sub-sectors. The empirical point of departure is managers who, more or less deliberately, throw apprentices into tasks from day one.…

  20. Terrestrial Carbon Cycle Variability. (United States)

    Baldocchi, Dennis; Ryu, Youngryel; Keenan, Trevor


    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

  1. Ductile mode electrochemical oxidation assisted micromachining for glassy carbon (United States)

    Nam, Eunseok; Lee, Chan-Young; Jun, Martin B. G.; Min, Byung-Kwon


    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.

  2. 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)


    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.)

  3. Automated respiratory cycles selection is highly specific and improves respiratory mechanics analysis. (United States)

    Rigo, Vincent; Graas, Estelle; Rigo, Jacques


    Selected optimal respiratory cycles should allow calculation of respiratory mechanic parameters focusing on patient-ventilator interaction. New computer software automatically selecting optimal breaths and respiratory mechanics derived from those cycles are evaluated. Retrospective study. University level III neonatal intensive care unit. Ten mins synchronized intermittent mandatory ventilation and assist/control ventilation recordings from ten newborns. The ventilator provided respiratory mechanic data (ventilator respiratory cycles) every 10 secs. Pressure, flow, and volume waves and pressure-volume, pressure-flow, and volume-flow loops were reconstructed from continuous pressure-volume recordings. Visual assessment determined assisted leak-free optimal respiratory cycles (selected respiratory cycles). New software graded the quality of cycles (automated respiratory cycles). Respiratory mechanic values were derived from both sets of optimal cycles. We evaluated quality selection and compared mean values and their variability according to ventilatory mode and respiratory mechanic provenance. To assess discriminating power, all 45 "t" values obtained from interpatient comparisons were compared for each respiratory mechanic parameter. A total of 11,724 breaths are evaluated. Automated respiratory cycle/selected respiratory cycle selections agreement is high: 88% of maximal κ with linear weighting. Specificity and positive predictive values are 0.98 and 0.96, respectively. Averaged values are similar between automated respiratory cycle and ventilator respiratory cycle. C20/C alone is markedly decreased in automated respiratory cycle (1.27 ± 0.37 vs. 1.81 ± 0.67). Tidal volume apparent similarity disappears in assist/control: automated respiratory cycle tidal volume (4.8 ± 1.0 mL/kg) is significantly lower than for ventilator respiratory cycle (5.6 ± 1.8 mL/kg). Coefficients of variation decrease for all automated respiratory cycle parameters in all infants. "t

  4. Digital Operating Room assistant

    NARCIS (Netherlands)

    Geudon, A.C.P.


    The Operating Room (OR) is a complex environment, where a large variety of patients and diseases can be treated and many unexpected events occur (such as emergency surgeries and unexpected progress of procedures). In practice, OR assistants support OR processes as well as they can, in order to

  5. Assistance Focus: Africa

    Energy Technology Data Exchange (ETDEWEB)


    The Clean Energy Solutions Center, an initiative of the Clean Energy Ministerial, helps countries throughout the world create policies and programs that advance the deployment of clean energy technologies. Through the Solutions Center's no-cost Ask an Expert service, a team of international experts has delivered assistance to countries in all regions of the world, including Africa.

  6. Assistive Technologies for Reading (United States)

    Ruffin, Tiece M.


    Twenty-first century teachers working with diverse readers are often faced with the question of how to integrate technology in reading instruction that meets the needs of the techno-generation. Are today's teachers equipped with the knowledge of how to effectively use Assistive Technologies (AT) for reading? This position paper discusses AT for…

  7. Robotic assisted andrological surgery (United States)

    Parekattil, Sijo J; Gudeloglu, Ahmet


    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). PMID:23241637

  8. The aeromedical physician assistant. (United States)

    Radi, Joshua; Brisson, Michael; Line, Michael


    The US Army aeromedical physician assistant (PA) serves aviation units in regards to crewmember medical readiness. All PAs are graduates of a 6-week flight surgeon course. They are responsible for conducting nearly 40% of the annual US Army flight physicals. This unique training and deployment illustrates the growing adaptability of PAs to assume a greater role in military medicine.

  9. Partnership for Prescription Assistance (United States)

    Skip to main content ☒ Close PPA is a Free Service Other companies may offer to connect consumers to these same ... Received Assistance Established in 2005 PPA is a Free Service Other companies may offer to connect consumers to these same ...

  10. Physician-assisted suicide. (United States)

    Snyder, L; Sulmasy, D P


    Medical professional codes have long prohibited physician involvement in assisting a patient's suicide. However, despite ethical and legal prohibitions, calls for the liberalization of this ban have grown in recent years. The medical profession should articulate its views on the arguments for and against changes in public policy and decide whether changes are prudent. In addressing such a contentious issue, physicians, policymakers, and society must fully consider the needs of patients, the vulnerability of particular patient groups, issues of trust and professionalism, and the complexities of end-of-life health care. Physician-assisted suicide is prominent among the issues that define our professional norms and codes of ethics. The American College of Physicians-American Society of Internal Medicine (ACP-ASIM) does not support the legalization of physician-assisted suicide. The routine practice of physician-assisted suicide raises serious ethical and other concerns. Legalization would undermine the patient-physician relationship and the trust necessary to sustain it; alter the medical profession's role in society; and endanger the value our society places on life, especially on the lives of disabled, incompetent, and vulnerable individuals. The ACP-ASIM remains thoroughly committed to improving care for patients at the end of life.

  11. Robotic assisted kidney transplantation

    Directory of Open Access Journals (Sweden)

    Pranjal Modi


    Full Text Available Kidney transplantation is the standard of care for patients with end stage renal disease. While open surgery remains the gold standard, minimally invasive surgery has recently been introduced for the recipient undergoing kidney transplantation. We review the evolution of techniques of minimally invasive surgery for kidney transplantation with specific emphasis on technical aspects of robotic assisted kidney transplantation.

  12. Towards Wearable Cognitive Assistance (United States)


    Nokia -Siemens Networks announced the availability of a “mobile edge computing platform” [1]. Wearable cognitive assistance can be viewed as a “killer...first step, providing an open-source foundation for exploring this exciting new domain. References [1] IBM and Nokia Siemens Networks Announce World’s

  13. Computer-assisted instruction

    NARCIS (Netherlands)

    Voogt, J.; Fisser, P.; Wright, J.D.


    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

  14. Assisted death and martyrdom. (United States)

    Thomasma, David C


    Against the backdrop of ancient, mediaeval and modern Catholic teaching prohibiting killing (the rule against killing), the question of assisted suicide and euthanasia is examined. In the past the Church has modified its initial repugnance for killing by developing specific guidelines for permitting killing under strict conditions. This took place with respect to capital punishment and a just war, for example. One wonders why in the least objectionable instance, when a person is already dying, suffering, and repeatedly requesting assistance in dying, there is still such widespread condemnation of assisted suicide and euthanasia. In a Gedankexperiment, I suggest that certain stories of martyrdom in the history of the Christian Church shed some light on the role of taking one's life, or putting one's life in danger out of love. I further suggest that requesting assisted suicide and/or euthanasia from the motive of love of one's family or care givers might possibly qualify as one instance of justifiable euthanasia, although I acknowledge that the Church will not be making changes in its stance any time soon.

  15. Using the Society for Assisted Reproductive Technology Clinic Outcome System morphological measures to predict live birth after assisted reproductive technology. (United States)

    Luke, Barbara; Brown, Morton B; Stern, Judy E; Jindal, Sangita K; Racowsky, Catherine; Ball, G David


    To model morphological assessments of embryo quality that are predictive of live birth. Longitudinal cohort using cycles reported in the Society for Assisted Reproductive Technology Clinic Outcomes Reporting System (SART CORS) between 2007 and 2011. Clinic-based data. Fresh autologous assisted reproductive technology (ART) cycles with ETs on day 3 or day 5 and morphological assessments reported (25,409 cycles with one embryo transferred and 96,093 cycles with two embryos transferred). Live-birth rates were modeled by morphological assessments using backward-stepping logistic regression for cycle 1 and over five cycles, separately for day 3 and day 5 transfers and number of embryos transferred (1 or 2). Additional models for each day of transfer also included the number of oocytes retrieved and the number of embryos cryopreserved. None. Live births. Morphological assessments of grade, stage, fragmentation, and symmetry were significant for the day 3 models; grade, stage, and trophectoderm were significant in the day 5 model; inner-cell mass was significant in the models when two embryos were transferred. Number of oocytes retrieved and number of embryos cryopreserved were significant for both day 3 and day 5 models. These findings confirm the significant association between embryo quality parameters reported to SART CORS and live-birth rate after ART. Copyright © 2014 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

  16. Menstrual cycle pattern and fertility

    DEFF Research Database (Denmark)

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


    OBJECTIVE: 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. DESIGN: Prospective follow-up study. SETTING: Healthy couples recruited throughout Denmark...

  17. National Urea Cycle Disorders Foundation (United States)

    ... INGESTING HIGH-PROTEIN FOODS AND PROTEIN SUPPLEMENTS FOR BODYBUILDING : Symptoms of urea cycle disorder went unrecognized as young mother, Meegan Hefford, prepared for a bodybuilding competition. Undiagnosed urea cycle disorders can be triggered ...

  18. Designing Real Time Assistive Technologies

    DEFF Research Database (Denmark)

    Sonne, Tobias; Obel, Carsten; Grønbæk, Kaj


    design criteria in relation to three core components (sensing, recognizing, and assisting) for designing real time assistive technologies for children with ADHD. Based on these design criteria, we designed the Child Activity Sensing and Training Tool (CASTT), a real time assistive prototype that captures...... 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......) real time assistive technologies have potential to assist children with ADHD in regaining attention in critical school situations....

  19. GEOSS Water Cycle Integrator (United States)

    Koike, Toshio; Lawford, Richard; Cripe, Douglas


    It is critically important to recognize and co-manage the fundamental linkages across the water-dependent domains; land use, including deforestation; ecosystem services; and food-, energy- and health-securities. Sharing coordinated, comprehensive and sustained observations and information for sound decision-making is a first step; however, to take full advantage of these opportunities, we need to develop an effective collaboration mechanism for working together across different disciplines, sectors and agencies, and thereby gain a holistic view of the continuity between environmentally sustainable development, climate change adaptation and enhanced resilience. To promote effective multi-sectoral, interdisciplinary collaboration based on coordinated and integrated efforts, the intergovernmental Group on Earth Observations (GEO) is implementing the Global Earth Observation System of Systems (GEOSS). A component of GEOSS now under development is the "GEOSS Water Cycle Integrator (WCI)", which integrates Earth observations, modeling, data and information, management systems and education systems. GEOSS/WCI sets up "work benches" by which partners can share data, information and applications in an interoperable way, exchange knowledge and experiences, deepen mutual understanding and work together effectively to ultimately respond to issues of both mitigation and adaptation. (A work bench is a virtual geographical or phenomenological space where experts and managers collaborate to use information to address a problem within that space). GEOSS/WCI enhances the coordination of efforts to strengthen individual, institutional and infrastructure capacities, especially for effective interdisciplinary coordination and integration. GEO has established the GEOSS Asian Water Cycle Initiative (AWCI) and GEOSS African Water Cycle Coordination Initiative (AfWCCI). Through regional, inter-disciplinary, multi-sectoral integration and inter-agency coordination in Asia and Africa, GEOSS

  20. Life Cycle Inventory Analysis

    DEFF Research Database (Denmark)

    Bjørn, Anders; Moltesen, Andreas; Laurent, Alexis


    of different sources. The output is a compiled inventory of elementary flows that is used as basis of the subsequent life cycle impact assessment phase. This chapter teaches how to carry out this task through six steps: (1) identifying processes for the LCI model of the product system; (2) planning......The inventory analysis is the third and often most time-consuming part of an LCA. The analysis is guided by the goal and scope definition, and its core activity is the collection and compilation of data on elementary flows from all processes in the studied product system(s) drawing on a combination...

  1. Elementary cycles of time

    Directory of Open Access Journals (Sweden)

    Dolce Donatello


    Full Text Available Elementary particles, i.e. the basic constituents of nature, are characterized by quantum recurrences in time. The flow of time of every physical system can be therefore decomposed in elementary cycles of time. This allows us to enforce the local nature of relativistic time, yielding interesting unified descriptions of fundamental aspects of modern physics, as shown in recent publications. Every particle can be regarded as a reference clock with time resolution of the order of the Compton time particle, many orders of magnitude more accurate than the atomic clocks. Here we report basic implications about the resulting notion of time.

  2. The software life cycle

    CERN Document Server

    Ince, Darrel


    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

  3. Geomicrobiological cycling of antimony (United States)

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


    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

  4. Kondratieff's Long-Wave Cycle. (United States)

    Volland, Craig S.


    The legendary Soviet economist's classic work, "Long-Wave Cycle," has been republished. Admirers believe that it explains how the world's economy works. According to Kondratieff, the world economy follows cycles lasting from 48 to 55 years. His cycle theory is discussed. (Author/RM)

  5. Entrepreneurship and the Business Cycle

    NARCIS (Netherlands)

    Ph.D. Koellinger (Philipp); A.R. Thurik (Roy)


    textabstractWe find new empirical regularities in the business cycle in a cross-country panel of 22 OECD countries for the period 1972-2007; entrepreneurship Granger-causes the cycles of the world economy. Furthermore, the entrepreneurial cycle is positively affected by the national unemployment

  6. Revenue cycle management: part I. (United States)

    Crew, Matt


    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.

  7. Sometimes "Newton's Method" Always "Cycles" (United States)

    Latulippe, Joe; Switkes, Jennifer


    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…

  8. Political Business Cycles through Lobbying


    Marco Bonomo; Cristina Terra


    In this paper we build a framework where the interplay between the lobby power of special interest groups and the voting power of the majority of the population leads to political business cycles. We apply our set up to explain electoral cycles in government expenditure composition as well as to cycles in aggregate expenditures and in real exchange rates.

  9. Effect of Embryo Banking on U.S. National Assisted Reproductive Technology Live Birth Rates. (United States)

    Kushnir, Vitaly A; Barad, David H; Albertini, David F; Darmon, Sarah K; Gleicher, Norbert


    Assisted Reproductive Technology (ART) reports generated by the Centers for Disease Control and Prevention (CDC) exclude embryo banking cycles from outcome calculations. We examined data reported to the CDC in 2013 for the impact of embryo banking exclusion on national ART outcomes by recalculating autologous oocyte ART live birth rates. Inflation of reported fresh ART cycle live birth rates was assessed for all age groups of infertile women as the difference between fresh cycle live births with reference to number of initiated fresh cycles (excluding embryo banking cycles), as typically reported by the CDC, and fresh cycle live births with reference to total initiated fresh ART cycles (including embryo banking cycles). During 2013, out of 121,351 fresh non-donor ART cycles 27,564 (22.7%) involved embryo banking. The proportion of banking cycles increased with female age from 15.5% in women 44 years. Concomitantly, the proportion of thawed cycles decreased with advancing female age (P banking cycles led to inflation of live birth rates in fresh ART cycles, increasing in size in parallel to advancing female age and utilization of embryo banking, reaching 56.3% in women age >44. The inflation of live birth rates in thawed cycles could not be calculated from the publically available CDC data but appears to be even greater. Utilization of embryo banking increased during 2013 with advancing female age, suggesting a potential age selection bias. Exclusion of embryo banking cycles from national ART outcome reports significantly inflated national ART success rates, especially among older women. Exclusion of embryo banking cycles from US National Assisted Reproductive Technology outcome reports significantly inflates reported success rates especially in older women.

  10. Culture in cycles: considering H.T. Odum's 'information cycle' (United States)

    Abel, Thomas


    'Culture' remains a conundrum in anthropology. When recast in the mold of 'information cycles,' culture is transformed. New fault lines appear. Information is splintered into parallel or nested forms. Dynamics becomes cycling. Energy is essential. And culture has function in a directional universe. The 'information cycle' is the crowning component of H.T. Odum's theory of general systems. What follows is an application of the information cycle to the cultural domains of discourse, social media, ritual, education, journalism, technology, academia, and law, which were never attempted by Odum. In information cycles, cultural information is perpetuated - maintained against Second Law depreciation. Conclusions are that culture is in fact a nested hierarchy of cultural forms. Each scale of information production is semi-autonomous, with its own evolutionary dynamics of production and selection in an information cycle. Simultaneously, each information cycle is channeled or entrained by its larger scale of information and ultimately human-ecosystem structuring.

  11. The application of cycling and cycling combined with feedback in the rehabilitation of stroke patients: a review. (United States)

    Barbosa, David; Santos, Cristina P; Martins, Maria


    Stroke is a leading cause of long-term disabilities, such as hemiparesis, inability to walk without assistance, and dependence of others in the activities of daily living. Motor function rehabilitation after stroke demands for methods oriented to the recovery of the walking capacity. Because of the similarities with walking, cycling leg exercise may present a solution to this problem. The aim of this article is to review the state of the art applications of cycling leg exercise as a (1) motor function rehabilitation method and an (2) aerobic training method for stroke patients as well as the commonly used (3) assessment tools. The cycling characteristics and applications, the applied test protocols as well as the tools used to assess the state and the recovery of patients and types of cycling devices are presented. In addition, the potential benefits of the use of other therapies, like feedback, together with cycling are explored. The application of cycling leg exercise alone and combined with feedback in stroke rehabilitation approaches has shown promising results. Positive effects on motor abilities were found in subacute and chronic patients. However, larger and normalized studies and assessments are needed because there is a high heterogeneity in the patients' characteristics, protocols and metrics. This wil allow the comparison between different studies related with cycling. Copyright © 2015 National Stroke Association. Published by Elsevier Inc. All rights reserved.

  12. Nuclear Fuel Cycle; (USA)

    Energy Technology Data Exchange (ETDEWEB)

    Cason, D.L.; Hicks, S.C. (eds.)


    Nuclear Fuel Cycle (NFC) announces on a monthly basis the current worldwide information available from the open literature on all aspects of the fuel cycle except in-reactor properties and performance of fuels. More information related to radioactive waste and to the transport and storage of spent fuel is included in the current awareness publication, Radioactive Waste Management. This publication contains the abstracts of DOE reports, journal articles, conference papers, patents, theses, and monographs added to the Energy Science and Technology Database (EDB) during the past month. Also included are other US information obtained through acquisition programs or interagency agreements and international information obtained through the International Energy Agency's Technology Data Exchange, the International Atomic Energy Agency's International Nuclear Information System, or government-to-government agreements. The digests in NFC on nuclear fuel back to 1948 are available for online searching and retrieval in EDB and Nuclear Science Abstracts (NSA) database. Current information, added daily to EDB, is available to DOE and its contractors through the DOE Integrated Technical Information System. Customized profiles can be developed to provide current information to meet each user's needs.

  13. Bovine eurytrematosis: life cycle, pathologic manifestations and public health considerations


    Headley, Selwyn Arlington


    This article describes the life cycle, pathologic manifestations and aspects of public health relative to infection of Eurytrema sp. in beef cattle and offer consise information to assist those involved in meat inspection. Eurythema sp. produces intenstitial pancreatitis with subsequent ductal obstruction and is being considered as the principal cause of rejection of pancreas in some Brazilian states methods to identify and diagnose gross alterations of Eurytrema sp. in beef cattle as well as...

  14. Preparing for Assisted Reproductive Technology (United States)

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

  15. Cycling infrastructure for reducing cycling injuries in cyclists. (United States)

    Mulvaney, Caroline A; Smith, Sherie; Watson, Michael C; Parkin, John; Coupland, Carol; Miller, Philip; Kendrick, Denise; McClintock, Hugh


    Cycling is an attractive form of transport. It is beneficial to the individual as a form of physical activity that may fit more readily into an individual's daily routine, such as for cycling to work and to the shops, than other physical activities such as visiting a gym. Cycling is also beneficial to the wider community and the environment as a result of fewer motorised journeys. Cyclists are seen as vulnerable road users who are frequently in close proximity to larger and faster motorised vehicles. Cycling infrastructure aims to make cycling both more convenient and safer for cyclists. This review is needed to guide transport planning. To:1. evaluate the effects of different types of cycling infrastructure on reducing cycling injuries in cyclists, by type of infrastructure;2. evaluate the effects of cycling infrastructure on reducing the severity of cycling injuries in cyclists;3. evaluate the effects of cycling infrastructure on reducing cycling injuries in cyclists with respect to age, sex and social group. We ran the most recent search on 2nd March 2015. We searched the Cochrane Injuries Group Specialised Register, CENTRAL (The Cochrane Library), MEDLINE (OvidSP), Embase Classic + Embase(OvidSP), PubMed and 10 other databases. We searched websites, handsearched conference proceedings, screened reference lists of included studies and previously published reviews and contacted relevant organisations. We included randomised controlled trials, cluster randomised controlled trials, controlled before-after studies, and interrupted time series studies which evaluated the effect of cycling infrastructure (such as cycle lanes, tracks or paths, speed management, roundabout design) on cyclist injury or collision rates. Studies had to include a comparator, that is, either no infrastructure or a different type of infrastructure. We excluded studies that assessed collisions that occurred as a result of competitive cycling. Two review authors examined the titles and

  16. Laser-assisted electrochemistry

    Energy Technology Data Exchange (ETDEWEB)

    Glenn, D.F.


    The effect of laser irradiation on electrodeposition processes has been investigated. These studies demonstrated that the addition of laser irradiation to an electroplating process can dramatically enhance plating rates and current efficiencies, as well as improve the morphology of the resultant electrodeposit. During the course of these investigations, the mechanism for the laser enhancement of electrodeposition processes was determined. Experimental evidence was obtained to show that laser irradiation of the substrate results in increased metal ion concentrations at the surface of the electrode due to a laser-induced Soret effect. The laser-induced Soret effect has important implications for laser-assisted electrochemical processing. The increase in the surface concentration of ions allows efficient electrodeposition from dilute solutions. As such, laser- assisted electrodeposition may develop into an environmentally conscious manufacturing process by reducing waste and limiting worker exposure to toxic chemicals.

  17. Assistance Focus: Africa

    Energy Technology Data Exchange (ETDEWEB)


    The Clean Energy Solutions Center, an initiative of the Clean Energy Ministerial, helps countries throughout the world create policies and programs that advance the deployment of clean energy technologies. Through the Solutions Center's no-cost 'Ask an Expert' service, a team of international experts has delivered assistance to countries in all regions of the world. High-impact examples from Africa are featured here.

  18. Assisted reproductive techniques. (United States)

    Huang, Jack Yu Jen; Rosenwaks, Zev


    Assisted reproductive technologies (ART) encompass fertility treatments, which involve manipulations of both oocyte and sperm in vitro. This chapter provides a brief overview of ART, including indications for treatment, ovarian reserve testing, selection of controlled ovarian hyperstimulation (COH) protocols, laboratory techniques of ART including in vitro fertilization (IVF), and intracytoplasmic sperm injection (ICSI), embryo transfer techniques, and luteal phase support. This chapter also discusses potential complications of ART, namely ovarian hyperstimulation syndrome (OHSS) and multiple gestations, and the perinatal outcomes of ART.

  19. Physician Assistant Genomic Competencies. (United States)

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


    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.

  20. Virtual Personal Assistant


    Imrie, Peter; Bednar, Peter


    Abstract This report discusses ways in which new technology could be harnessed to create an intelligent Virtual Personal Assistant (VPA) with a focus on user-based information. It will look at examples of intelligent programs with natural language processing that are currently available, with different categories of support, and examine the potential usefulness of one specific piece of software as a VPA. This engages the ability to communicate socially through natural language processing, hol...