Yours, Mine, Theirs: Multiple Generations in Today's Workplace

Science.gov (United States)

Grotophorst, Julie

2011-01-01

For the first time in history, four distinct generations are sharing the same workspace. Veterans, Baby Boomers, Gen-Xers, and Generation Y (the Millennials) are all bringing very different life experiences, expectations, and value systems to the work table. How do leaders bridge the gap among these generations and provide common ground on which…

Generational influences in academic emergency medicine: teaching and learning, mentoring, and technology (part I).

Science.gov (United States)

Mohr, Nicholas M; Moreno-Walton, Lisa; Mills, Angela M; Brunett, Patrick H; Promes, Susan B

2011-02-01

For the first time in history, four generations are working together-traditionalists, baby boomers, generation Xers (Gen Xers), and millennials. Members of each generation carry with them a unique perspective of the world and interact differently with those around them. Through a review of the literature and consensus by modified Delphi methodology of the Society for Academic Emergency Medicine Aging and Generational Issues Task Force, the authors have developed this two-part series to address generational issues present in academic emergency medicine (EM). Understanding generational characteristics and mitigating strategies can help address some common issues encountered in academic EM. Through recognition of the unique characteristics of each of the generations with respect to teaching and learning, mentoring, and technology, academicians have the opportunity to strategically optimize interactions with one another. © 2011 by the Society for Academic Emergency Medicine.

The Comonotonic Sure-Thing Principle

NARCIS (Netherlands)

Wakker, P.P.; Chew, S.H.

1996-01-01

This article identifies the common characterizing condition, the comonotonic sure-thing principle, that underlies the rank-dependent direction in non-expected utility. This condition restricts Savage's sure-thing principle to comonotonic acts, and is characterized in full generality by means of a

Generations at School: Building an Age-Friendly Learning Community

Science.gov (United States)

Lovely, Suzette; Buffum, Austin G.; Barth, Roland S.

2007-01-01

Today's workforce comprises distinct generational cohorts-Veterans, Baby Boomers, Gen-Xers, and Millennials. "Generations at School" provides educators with the knowledge and tools to create and sustain true collaboration, teamwork, and consensus. Suzette Lovely and Austin G. Buffum introduce the traits and tipping points of these diverse age…

The SURE House (Solar Decathlon 2015)

Energy Technology Data Exchange (ETDEWEB)

Nastasi, John [Stevens Inst. of Technology, Hoboken, NJ (United States); May, Edwin [Stevens Inst. of Technology, Hoboken, NJ (United States)

2017-02-21

architecture for New Jersey and beyond. This is what informed the architectural design of the house. Configured about a compact form, thickly insulated and air-sealed walls eliminate thermal bridging and minimize energy losses while advanced glazing brings in free solar heat during the winter months. As a result of these passive design strategies, the SURE HOUSE has a greatly reduced carbon footprint requiring 91% less energy than a typical New Jersey home. Photovoltaic (PV) arrays on both the rooftop and operable shutters easily provide energy in excess of the home’s modest demands. The Stevens team considers a truly sustainable home in the era of climate change, one that prioritizes low energy use, and integrates right-sized renewable generation to supply the home’s needs. Low consumption, low production. RESILIENT In October of 2012, Hurricane Sandy wreaked havoc along the east coast of the US. In New Jersey alone there was an estimated 29.4 billion dollars in damages, 346,000 homes affected, and almost two and a half million people left without power, in some cases for over 10 days. Recovery from this storm and associated flooding is ongoing to this day, as many New Jersey homeowners grapple with the large costs of rebuilding and struggle to adapt to complicated new home building regulations. Damage from this storm to Hoboken, the home of the Stevens Institute of Technology’s campus, and to the New Jersey shore was extensive and many students on the SURE HOUSE team were directly affected by this historic event. The Stevens design team recognizes that in a world of more frequent and stronger storms, the ability to absorb and adapt to change is more important than ever. Successfully weathering the next storm and its aftermath is one of the primary goals in the design of the SURE HOUSE prototype. The SURE HOUSE introduces unique ‘dry flood-proofing’ methods to residential construction. Innovative wall and floor flood-proofing, utilizing durable composite sheathing

Differences in motives between Millennial and Generation X medical students.

Science.gov (United States)

Borges, Nicole J; Manuel, R Stephen; Elam, Carol L; Jones, Bonnie J

2010-06-01

OBJECTIVES Three domains comprise the field of human assessment: ability, motive and personality. Differences in personality and cognitive abilities between generations have been documented, but differences in motive between generations have not been explored. This study explored generational differences in medical students regarding motives using the Thematic Apperception Test (TAT). METHODS Four hundred and twenty six students (97% response rate) at one medical school (Generation X = 229, Millennials = 197) who matriculated in 1995 & 1996 (Generation X) or in 2003 & 2004 (Millennials) wrote a story after being shown two TAT picture cards. Student stories for each TAT card were scored for different aspects of motives: Achievement, Affiliation, and Power. RESULTS A multiple analysis of variance (p Millennials' and Generation X-ers' needs for Power on both TAT cards and needs for Achievement and Affiliation on one TAT card. The main effect for gender was significant for both TAT cards regarding Achievement. No main effect for ethnicity was noted. CONCLUSIONS Differences in needs for Achievement, Affiliation and Power exist between Millennial and Generation X medical students. Generation X-ers scored higher on the motive of Power, whereas Millennials scored higher on the motives of Achievement and Affiliation.

Generations Apart: Xers and Boomers in the Officer Corps

National Research Council Canada - National Science Library

Wong, Leonard

2000-01-01

.... Using empirical evidence to support the generational differences literature, the author points out that Generation X officers are more confident in their abilities, perceive loyalty differently, want...

FinTech Adoption Across Generations

DEFF Research Database (Denmark)

Carlin, Bruce; Olafsson, Arna; Pagel, Michaela

financial fee payments and penalties, but differs cross-sectionally in the population. After adopting the new technology, Millennials and members of Generation X incur fewer financial fees and penalties, whereas Baby Boomers do not benefit from the technological advance. Millennials and Gen Xers save fees...... by using their credit cards rather than overdrafts to manage short-term liabilities. Moreover, Millennials shift some of their spending to discretionary entertainment, whereas members of Generation X remain more austere. Finally, while men tend to adopt new technology and access information at a higher...

Sure start: voices of the 'hard-to-reach'.

Science.gov (United States)

Coe, C; Gibson, A; Spencer, N; Stuttaford, M

2008-07-01

This research aimed to look in depth at the factors affecting the ability of four Sure Start local programmes, based in a multicultural Midlands city, to engage with 'hard-to-reach' populations. A variety of research strategies and methods were employed. Geographical information systems, participatory research methods and interviews were used in order to understand the extent of the challenge, and hear first hand, why parents may not get involved with Sure Start. The mapping exercise involved collation and mapping of postcode data with respect to boundaries and potential and actual users of Sure Start services. This made possible the identification of any geographical patterning in the distribution of service users and non-users. Participatory research methods were used with parents, enabling them to conduct short interviews within their own communities and make sense of the data collected. Interviews were also conducted with 70 parents across the city, recruited through local schools. The results indicate that parental decisions regarding Sure Start are the product of a complex interaction between numerous factors which may act as either barriers or facilitators to service utilization. The results suggest that a multi-method approach to data collection is useful and appropriate in gaining access to those parents who are non-users of the Sure Start services and enabling their voices to be heard. These findings offer some explanations and insight into the apparent ambivalent attitudes of some families toward Sure Start services. Implications for future practice are discussed.

Generations at School: Building an Age-Friendly Workplace

Science.gov (United States)

Lovely, Suzette

2010-01-01

In schools around the country, Gen Xers, Millennials, Baby Boomers, and even a Veteran or two are working side by side. While anyone holding a job in this shaky economy is grateful, gratitude does not make generational clashes less difficult. Adding to the mix, many Baby Boomers initially poised for a mass exodus by 2010 are holding on for dear…

Factors affecting the retention of Generation X public servants: An exploratory study

OpenAIRE

Vhutshilo Masibigiri; Hester Nienaber

2011-01-01

Orientation: Retaining employees, especially Generation Xers, is imperative to ensure the high performance of organisations. Purpose: The purpose of this study was to explore the factors that affect the retention of Generation X public servants. Motivation for the study: Given their unique characteristics, it is a challenge to retain Generation X employees. This problem may be worse in the public sector than in the private sector, as there are fewer financial rewards in the public ...

Are you ready for generation X?

Science.gov (United States)

Washburn, E R

2000-01-01

Generational analysis considers the differences in world view and attitude between various generations of Americans and uses this information to develop insight and business strategies. The much discussed generation gap between the Baby Boomers and their elders during the 1960s and 1970s is equaled or exceeded by the differences between Generations X and Y and the Boomers. Generation X physicians will be coming into practice over the next two decades. Successful medical leaders must understand Gen-Xers to create clinical environments that meet their unique needs and concerns. This article describes some of the philosophical and attitudinal differences between the generations and what these differences may mean to the future of medicine and health care organizations.

The sure-thing principle and the comonotonic sure-thing principle: An axiomatic analysis

NARCIS (Netherlands)

P.P. Wakker (Peter)

1996-01-01

textabstractThis paper compares classical expected utility with the more general rank-dependent utility models. It shows that the difference between the sure-thing principle for preferences of expected utility and its comonotonic generalization in rank-dependent utility provides the exact

The Sure-Thing Principle and the Comonotonic Sure-Thing Principle: An Axiomatic Analysis

NARCIS (Netherlands)

Wakker, P.P.

1996-01-01

This paper compares classical expected utility with the more general rank-dependent utility models. It shows that the difference between the sure-thing principle for preferences of expected utility and its comonotonic generalization in rank-dependent utility provides the exact demarcation between

A novel SURE-based criterion for parametric PSF estimation.

Science.gov (United States)

Xue, Feng; Blu, Thierry

2015-02-01

We propose an unbiased estimate of a filtered version of the mean squared error--the blur-SURE (Stein's unbiased risk estimate)--as a novel criterion for estimating an unknown point spread function (PSF) from the degraded image only. The PSF is obtained by minimizing this new objective functional over a family of Wiener processings. Based on this estimated blur kernel, we then perform nonblind deconvolution using our recently developed algorithm. The SURE-based framework is exemplified with a number of parametric PSF, involving a scaling factor that controls the blur size. A typical example of such parametrization is the Gaussian kernel. The experimental results demonstrate that minimizing the blur-SURE yields highly accurate estimates of the PSF parameters, which also result in a restoration quality that is very similar to the one obtained with the exact PSF, when plugged into our recent multi-Wiener SURE-LET deconvolution algorithm. The highly competitive results obtained outline the great potential of developing more powerful blind deconvolution algorithms based on SURE-like estimates.

War of the Generations: Reentering the Underemployed Workforce

Science.gov (United States)

Finkelstein, Jim

2011-01-01

There is an interesting new dynamic in today's workplace--Millennials, GenXers, baby boomers and seniors are fighting for the same jobs. Millennials are seeking to enter for the first time; GenXers are seeking to upgrade their positions; boomers are seeking to, in many cases, re-enter the workplace, having had their retirement nest eggs seriously…

SureTrak Probability of Impact Display

Science.gov (United States)

Elliott, John

2012-01-01

The SureTrak Probability of Impact Display software was developed for use during rocket launch operations. The software displays probability of impact information for each ship near the hazardous area during the time immediately preceding the launch of an unguided vehicle. Wallops range safety officers need to be sure that the risk to humans is below a certain threshold during each use of the Wallops Flight Facility Launch Range. Under the variable conditions that can exist at launch time, the decision to launch must be made in a timely manner to ensure a successful mission while not exceeding those risk criteria. Range safety officers need a tool that can give them the needed probability of impact information quickly, and in a format that is clearly understandable. This application is meant to fill that need. The software is a reuse of part of software developed for an earlier project: Ship Surveillance Software System (S4). The S4 project was written in C++ using Microsoft Visual Studio 6. The data structures and dialog templates from it were copied into a new application that calls the implementation of the algorithms from S4 and displays the results as needed. In the S4 software, the list of ships in the area was received from one local radar interface and from operators who entered the ship information manually. The SureTrak Probability of Impact Display application receives ship data from two local radars as well as the SureTrak system, eliminating the need for manual data entry.

A safety-based comparison of pure LigaSure use and LigaSure-tie technique in total thyroidectomy.

Science.gov (United States)

Pergel, A; Yucel, A Fikret; Aydin, I; Sahin, D A; Aras, S; Kulacoglu, H

2014-01-01

Sutureless total thyroidectomy by using vessel sealing devices has been shown to be safe in some recent clinical studies. However, some surgeons are still concerned about the use of these energy devices in the vicinity of there current laryngeal nerve and parathyroid glands. The objective of this study was to investigate the effects of the use of pure LigaSure on postoperative complications and to discuss the pertinent literature. A total of 456 patients having undergone a total thyroidectomy operation between June 2009 and March 2011 were included in the study. Data were prospectively collected and retrospectively evaluated. Patients were separated into 2 groups. Group L comprised of 182 patients where onlyLigaSure was used, and group LT consisted of 274 patients where ligation was used in the vicinity of the recurrent laryngeal nerve and parathyroid glands, and LigaSure was used in all other parts of the surgery. Patient's blood calcium values were checked preoperatively and at postoperative 24, 48, and 72 hours. Groups were assessed in terms of demographic properties, thyroid pathology, duration of operation, and postoperative complications. Groups were similar in respect of demographic properties, operation duration, thyroid gland pathology. No mortality rate was recorded. Laboratory hypocalcemia rate was higher in group L (P 0.003), but no significant difference was identified between groups in terms of symptomatic hypocalcemia.No permanent hypocalcemia or recurrent laryngeal nerve injury developed in any of the patients in the two groups. Pure LigaSure for total thyroidectomy may increase laboratory hypocalcemia rate, but not symptomatic hypocalcemia. Hemorrhage related complications were similar and low in the two groups. Ligations in the places close to delicate anatomic structures did not cause longer operative times and may be a safer option in total thyroidectomy. Celsius.

How the millennial generation is transforming employee benefits.

Science.gov (United States)

Howe, Neil

2014-01-01

According to a number of recent studies, the millennial generation, today's incoming young-adult employees, shows far more interest than older generations in a broad spectrum of employee bene its to protect them from various life risks. They are more cautious than boomers or Gen Xers in choosing their financial portfolios and more focused on planning for their long-term future. Millennials even value health insurance almost as much as older adults--despite the fact they're much less likely to use it. These findings are in broad alignment with broader millennial generational traits that LifeCourse Associates has been studying fo many years.

Detection of cervical precancerous lesions with Aptima HPV assays using SurePath preservative fluid specimens

Directory of Open Access Journals (Sweden)

Max Chernesky

2017-06-01

Full Text Available SurePath specimens from women referred to colposcopy were treated with Aptima Transfer Solution (ATS before testing in Aptima HPV (AHPV and Aptima HPV 16, 18/45 (AHPV-GT assays. Untreated SurePath specimens were tested with the cobas HPV test. PreservCyt specimens were assessed for cytology and tested with AHPV. High-grade cervical intraepithelial neoplasia lesions served as the reference standard. Excellent agreement (95.5%; k=0.91 was observed for ATS-treated SurePath specimens between Tigris and Panther systems and between the PreservCyt and ATS-treated SurePath specimens (91.1%, k=0.81 with the AHPV assay on Tigris. Agreement between the AHPV and cobas assays with SurePath specimens was substantial (89.9%, k=0.80. AHPV sensitivity for CIN2+(n=147 was 91.2% for SurePath and PreservCyt. Cobas HPV sensitivity was 93.9% for SurePath specimens. AHPV testing of SurePath specimens was more specific (59.4% than cobas (54.7% (p<0.001. Detection and genotyping showed similar absolute and relative risks. ATS-treated SurePath specimens tested with AHPV and AHPV-GT assays showed similar performance with greater specificity than cobas HPV on SurePath specimens. Similar overall results were seen using a CIN3 disease endpoint. Keywords: Human papillomavirus, SurePath, PreservCyt, Cervical intraepithelial neoplasia, CIN2+, Aptima transfer solution (ATS

Evaluation of the Thermo Scientific™ SureTect™ Listeria species Assay.

Science.gov (United States)

Cloke, Jonathan; Evans, Katharine; Crabtree, David; Hughes, Annette; Simpson, Helen; Holopainen, Jani; Wickstrand, Nina; Kauppinen, Mikko

2014-03-01

The Thermo Scientific™ SureTect™ Listeria species Assay is a new real-time PCR assay for the detection of all species of Listeria in food and environmental samples. This validation study was conducted using the AOAC Research Institute (RI) Performance Tested MethodsSM program to validate the SureTect Listeria species Assay in comparison to the reference method detailed in International Organization for Standardization 11290-1:1996 including amendment 1:2004 in a variety of foods plus plastic and stainless steel. The food matrixes validated were smoked salmon, processed cheese, fresh bagged spinach, cantaloupe, cooked prawns, cooked sliced turkey meat, cooked sliced ham, salami, pork frankfurters, and raw ground beef. All matrixes were tested by Thermo Fisher Scientific, Microbiology Division, Basingstoke, UK. In addition, three matrixes (pork frankfurters, fresh bagged spinach, and stainless steel surface samples) were analyzed independently as part of the AOAC-RI-controlled independent laboratory study by the University of Guelph, Canada. Using probability of detection statistical analysis, a significant difference in favour of the SureTect assay was demonstrated between the SureTect and reference method for high level spiked samples of pork frankfurters, smoked salmon, cooked prawns, stainless steel, and low-spiked samples of salami. For all other matrixes, no significant difference was seen between the two methods during the study. Inclusivity testing was conducted with 68 different isolates of Listeria species, all of which were detected by the SureTect Listeria species Assay. None of the 33 exclusivity isolates were detected by the SureTect Listeria species Assay. Ruggedness testing was conducted to evaluate the performance of the assay with specific method deviations outside of the recommended parameters open to variation, which demonstrated that the assay gave reliable performance. Accelerated stability testing was additionally conducted, validating the

Effect of Undiagnosed Deep Adenomyosis After Failed NovaSure Endometrial Ablation

NARCIS (Netherlands)

Mengerink, B.B.; Wurff, A.A. van der; Haar, J.F. ter; Rooij, I.A.L.M. van; Pijnenborg, J.M.

2015-01-01

STUDY OBJECTIVE: To determine the prevalence of adenomyosis and deep adenomyosis after NovaSure (Hologic Inc., Newark, DE) endometrial ablation in hysterectomy specimens after NovaSure endometrial ablation failure. DESIGN: Prospective observational study (Canadian Task Force classification II-2).

Generation Rx.com. What are young people really doing online?

Science.gov (United States)

Rideout, Victoria

2002-01-01

The Kaiser Family Foundation examined the ways Generation Xers use the Web to find health information and found some surprising results. Not only do young adults access online health information, but they seek it more often than they check sports scores, purchase merchandise, or participate in a chat room. They're also likely to be influenced by what they find online, and many report that they've changed their behavior based on what they've learned.

Ten-year literature review of global endometrial ablation with the NovaSure® device

Directory of Open Access Journals (Sweden)

Gimpelson RJ

2014-03-01

Full Text Available Richard J Gimpelson Mercy Clinic, Minimally Invasive Gynecology, Department of Obstetrics and Gynecology, Mercy Hospital St Louis, St Louis, MO, USA Abstract: This review examines the peer-reviewed literature describing prospective studies that report amenorrhea rates, patient satisfaction, and surgical reintervention rates following the NovaSure® endometrial ablation procedure. A search of the English-language literature published from 2000 to 2011 was conducted using PubMed. Ten prospective studies, six single-arm NovaSure trials, and four randomized controlled trials comparing the NovaSure procedure with other global endometrial ablation modalities met the inclusion criteria and were reviewed. The follow-up periods ranged from 6 to 60 months. Amenorrhea rates for the NovaSure procedure ranged from 30.0% to 75.0%. Patients who reported being satisfied with the NovaSure procedure ranged from 85.0% to 94.0%. In randomized controlled trials with other global endometrial ablation modalities, amenorrhea rates at 12 months with the NovaSure procedure ranged from 43.0% to 56.0%, while other modalities ranged from 8% to 24%. In addition, this manuscript reviews the following: the NovaSure technology; use of the NovaSure procedure in the office setting; intraoperative and postoperative pain; effects on premenstrual syndrome (PMS; dysmenorrhea; special circumstances, including presence of uterine disease, history of cesarean delivery, coagulopathy, or use of anticoagulant medication; post-procedure uterine cavity assessment and cancer risk; contraception and pregnancy; and safety. Keywords: abnormal uterine bleeding, menorrhagia, endometrial ablation, NovaSure®

Is My Teaching Disturbing You? Strategies for Addressing Disruptive Behaviors in the College Classroom

Science.gov (United States)

Murphy, Kelle

2010-01-01

Faculty in higher education are experiencing a new generation of college students referred to as Generation X (Gen-Xers) and Millennials. The characteristics and behaviors of Gen-Xers and Millennials have created a more challenging classroom learning environment. Some educators may choose to ignore disruptive behaviors or may simply not know which…

The Career Officer Attrition Dilemma: An Underlying Cause

Science.gov (United States)

2002-04-09

BOOMER, XER, & MILLENIAL TRAITS COMPARISON ..................................... 23 vii viii THE CAREER OFFICER ATTRITION DILEMMA: AN UNDERLYING...provide a sustainable solution. Multiple generations in the military will always be present. What will change, however, is which generation will be in the... MILLENIAL TRAITS COMPARISON cause serious frustration both for the senior leadership and their subordinates. Even as the Xers begin to take over from

Measles: Make Sure Your Child Is Fully Immunized

Science.gov (United States)

... this? Submit What's this? Submit Button Past Emails Measles: Make Sure Your Child is Fully Immunized Language: ... also become infected if they are not protected. Measles in the U.S. From January 2 to March ...

Investigating Early and Late Complications in Conventional and LigaSure Hemorroidectomy

Directory of Open Access Journals (Sweden)

M Zare

2014-06-01

Full Text Available Introduction: The traditional Milligan-Morgan and the Ferguson operations are still the most used for patients with symptomatic haemorrhoids of III and IV degrees. Nowadays LigaSure is used as a new technique to decrease the complications resulting from conventional hemorroidectomy. In this study, patients were investigated on the basis of the following main outcomes: mean operative time, postoperative pain (score and duration, bleeding loss in operation, early (within the first month after surgery and late (after the first month complications in conventional as well as LigaSure hemorroidectomy. Methods: it is an analytical study conducted on 101 patients aged 19–80 years old of both males and females with III and IV-degree hemorrhoids who had been gone to Shahid Sadoughi hospital between 2011 and 2012. Forty-three patients were treated by conventional diathermy and fifty -eight by LigaSure. Patients received analgesic administration for about 24 hours after operations and, after hospital discharge. In fact, analgesia was administered until 5 days (three times a day. All patients were required to record pain from the first postoperative day until the 28th postoperative day on a self-administered NAS scale (0–10. Results: Patients completed a questionnaire face to face one week, one month, six, and twelve months after the operation. The mean operative time, bleeding loss in operation and return to work were significantly shorter in LS group, whereas there were no difference in hospital stay period, anal stenosis, healing time of wound and retention of urinary. A statistically significant difference in pain score was observed three and four days after the operation. Finally, patients with LigaSure haemorrhoidectomy recovered from pain earlier than those with conventional diathermy. Conclusions: although LigaSure proposes additional costs, it is an effective instrument in order to treat hemorrhoids of III and IV degrees.

Generational Influences in Academic Emergency Medicine: Teaching and Learning, Mentoring, and Technology (Part I)

Science.gov (United States)

Mohr, Nicholas M.; Moreno-Walton, Lisa; Mills, Angela M.; Brunett, Patrick H.; Promes, Susan B.

2010-01-01

For the first time in history, four generations are working together – Traditionalists, Baby Boomers, Generation Xers, and Millennials. Members of each generation carry with them a unique perspective of the world and interact differently with those around them. Through a review of the literature and consensus by modified Delphi methodology of the Society for Academic Emergency Medicine (SAEM) Aging and Generational Issues Task Force, the authors have developed this two-part series to address generational issues present in academic emergency medicine (EM). Understanding generational characteristics and mitigating strategies can help address some common issues encountered in academic EM. Through recognition of the unique characteristics of each of the generations with respect to teaching and learning, mentoring, and technology, academicians have the opportunity to strategically optimize interactions with one another. PMID:21314779

Florística y fisonomía de un matorral xerófilo espinoso intervenido en Punta de Piedras, Municipio Miranda, Estado Zulia, Venezuela

Directory of Open Access Journals (Sweden)

Antonio Vera

2009-06-01

Full Text Available Se determinaron los aspectos florísticos y fisonómicos de un matorral xerófilo espinoso intervenido de Punta de Piedras, municipio Miranda, estado Zulia, Venezuela. Se realizaron dieciséis muestreos quincenales, entre noviembre 2005 y junio 2006, para la recolecta, identificación y conteo de las especies tanto en el periodo lluvioso como en el seco. Los muestreos se llevaron a cabo en 10 manchones de vegetación con un área promedio de 718 ± 706.24 m², en una formación graminiforme en la que se emplearon tres parcelas de 20 x 20 (400 m², dividiéndose cada una de éstas en cuatro subparcelas de 20 x 5 (100 m² y a su vez, dentro de ellas, se delimitaron 12 subparcelas de 1 x 1. (1 m², y también se realizaron recorridos para el reconocimiento de otras especies de la zona. El matorral xerófilo espinoso mostró evidencias de intervención antropogénica como quemas periódicas, deposición de desechos sólidos, caminerías para el tránsito de las personas y asentamientos poblacionales en las zonas circunvecinas; y presentó una vegetación semiárida de espinar costero característica y comparable a la señalada para otras regiones del país. Se identificaron 45 especies agrupadas en 22 familias, entre las cuales destacaron: las Poaceae (6, Mimosaceae (4, Boraginaceae (3, Cactaceae (3 Caesalpinaceae (3, Euphorbiaceae (3 y Fabaceae (3. La intervención antropogénica parece generar la aparición de manchones de vegetación arbustiva y arbórea y de una formación graminiforme o pastizal. En esta última, Aristida venesuelae, Aristida pittieri y Portulaca pilosa presentaron los mayores valores de abundancia y frecuencia relativa cuya sumatoria corresponde a 49.38% y 46.86%, respectivamente; mientras que en los manchones se destacaron dos estratos: uno herbáceo menor a 1 m, y otro estrato arbustivo-arbóreo de bajo porte (2.63 ± 1.37 m de altura media, conformado principalmente por Opuntia wentiana, Piptadenia flava y Jatropha

Nurses' perception of their manager's leadership style and unit climate: are there generational differences?

Science.gov (United States)

Farag, Amany A; Tullai-McGuinness, Susan; Anthony, Mary K

2009-01-01

To describe and compare how nurses representing four age cohorts perceive their manager's leadership style and unit climate. The current workforce consists of nurses representing four generational cohorts. Nursing literature suggests that nurses from each age cohort think, behave and approach work differently. Limited empirical evidence, however, exists about how nurses from each age cohort perceive two aspects of their work environment: their managers' leadership style and unit climate. This cross-sectional, descriptive survey was conducted using a convenience sample of 475 registered nurses working in different inpatient units in three community non-magnet hospitals. Only nurses from Boomer and Gen-Xers had sufficient representation to be included in the data analysis. Nurses from the two main age cohorts did not differ in their perceptions of their manager's leadership style. Significant differences were found in two unit climate dimensions. The Gen-Xers had a less favourable perception of their unit climate related to warmth and belonging and administrative support. Nurse manager's might reflect on how they interact with different age cohorts; and to involve nurses from various age cohorts in the development of policies to create a flexible work environment.

Intersection of a Sure Ellipsoid and a Random Ellipsoid

Directory of Open Access Journals (Sweden)

Arjun K. Gupta

2012-07-01

Full Text Available Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} An Expression for the expected value of the intersection of a sure sphere and a random sphere has been derived by Laurent (1974. In the present paper we derive the expression for the expected intersection volume of a sure ellipsoid and a random ellipsoid

Evaluation of the Thermo Scientific SureTect Listeria monocytogenes Assay.

Science.gov (United States)

Cloke, Jonathan; Leon-Velarde, Carlos; Larson, Nathan; Dave, Keron; Evans, Katharine; Crabtree, David; Hughes, Annette; Hopper, Craig; Simpson, Helen; Withey, Sophie; Oleksiuk, Milena; Holopainen, Jani; Wickstrand, Nina; Kauppinen, Mikko

2014-01-01

The Thermo Scientific SureTect Listeria monocytogenes Assay is a new real-time PCR assay for the detection of Listeria monocytogenes in food and environmental samples. This assay was validated using the AOAC Research Institute (AOAC-RI) Performance Tested Methods program in comparison to the reference method detailed in International Organization for Standardization 11290-1:1996, including Amendment 1:2004 with the following foods and food contact surfaces: smoked salmon, processed cheese, fresh bagged spinach, fresh cantaloupe, cooked prawns (chilled product), cooked sliced turkey meat (chilled product), ice cream, pork frankfurters, salami, ground raw beef meat (12% fat), plastic, and stainless steel. All matrixes were tested by Thermo Fisher Scientific, Microbiology Division, Basingstoke, UK. In addition, three matrixes (pork frankfurters, bagged lettuce, and stainless steel) were analyzed independently as part of the AOAC-RI controlled laboratory study by the University of Guelph, Canada. Using probability of detection (POD) statistical analysis, a significant difference was demonstrated between the candidate and reference methods for salami, cooked sliced turkey and ice cream in favor of the SureTect assay. For all other matrixes, no significant difference by POD was seen between the two methods during the study. Inclusivity and exclusivity testing was also conducted with 53 and 30 isolates, respectively, which demonstrated that the SureTect assay was able to detect all serotypes of L. monocytogenes. None of the exclusivity isolates analyzed were detected by the SureTect assay. Ruggedness testing was conducted to evaluate the performance of the assay with specific method deviations outside the recommended parameters open to variation, i.e., enrichment time and temperature and lysis temperature, which demonstrated that the assay gave reliable performance. Accelerated stability testing was also conducted, validating the assay shelf life.

Almost Surely Asymptotic Stability of Exact and Numerical Solutions for Neutral Stochastic Pantograph Equations

Directory of Open Access Journals (Sweden)

Zhanhua Yu

2011-01-01

Full Text Available We study the almost surely asymptotic stability of exact solutions to neutral stochastic pantograph equations (NSPEs, and sufficient conditions are obtained. Based on these sufficient conditions, we show that the backward Euler method (BEM with variable stepsize can preserve the almost surely asymptotic stability. Numerical examples are demonstrated for illustration.

Evaluation of the Thermo Scientific™ SureTect™ Salmonella species Assay.

Science.gov (United States)

Cloke, Jonathan; Clark, Dorn; Radcliff, Roy; Leon-Velarde, Carlos; Larson, Nathan; Dave, Keron; Evans, Katharine; Crabtree, David; Hughes, Annette; Simpson, Helen; Holopainen, Jani; Wickstrand, Nina; Kauppinen, Mikko

2014-03-01

The Thermo Scientific™ SureTect™ Salmonella species Assay is a new real-time PCR assay for the detection of Salmonellae in food and environmental samples. This validation study was conducted using the AOAC Research Institute (RI) Performance Tested MethodsSM program to validate the SureTect Salmonella species Assay in comparison to the reference method detailed in International Organization for Standardization 6579:2002 in a variety of food matrixes, namely, raw ground beef, raw chicken breast, raw ground pork, fresh bagged lettuce, pork frankfurters, nonfat dried milk powder, cooked peeled shrimp, pasteurized liquid whole egg, ready-to-eat meal containing beef, and stainless steel surface samples. With the exception of liquid whole egg and fresh bagged lettuce, which were tested in-house, all matrixes were tested by Marshfield Food Safety, Marshfield, WI, on behalf of Thermo Fisher Scientific. In addition, three matrixes (pork frankfurters, lettuce, and stainless steel surface samples) were analyzed independently as part of the AOAC-RI-controlled laboratory study by the University of Guelph, Canada. No significant difference by probability of detection or McNemars Chi-squared statistical analysis was found between the candidate or reference methods for any of the food matrixes or environmental surface samples tested during the validation study. Inclusivity and exclusivity testing was conducted with 117 and 36 isolates, respectively, which demonstrated that the SureTect Salmonella species Assay was able to detect all the major groups of Salmonella enterica subspecies enterica (e.g., Typhimurium) and the less common subspecies of S. enterica (e.g., arizoniae) and the rarely encountered S. bongori. None of the exclusivity isolates analyzed were detected by the SureTect Salmonella species Assay. Ruggedness testing was conducted to evaluate the performance of the assay with specific method deviations outside of the recommended parameters open to variation

Safety and Effectiveness of NovaSure® Endometrial Ablation After Placement of Essure® Micro-Inserts.

Science.gov (United States)

Basinski, Cindy M; Price, Pamela; Burkhart, Jamie; Johnson, Jamie

2012-04-01

Objective: In-office NovaSure ® after Essure ® is a clinical paradigm for which physicians are seeking information. A PubMed search (July 2011) revealed no peer-reviewed articles describing this treatment sequence. To address the paucity of data on this topic, patients who had undergone Essure followed by NovaSure in a private practice office between July 1, 2008 and December 31, 2009 were evaluated. The objective was to evaluate safety and feasibility of in-office NovaSure after Essure, and to determine if the effectiveness of either procedure was altered by this treatment sequence. Design: This was a retrospective cohort study of 117 women (ages 24-52). Methods: Patients underwent Essure followed by NovaSure in two in-office sessions, separated by a median of 14 days. All patients had menorrhagia and desired permanent sterilization. A postprocedure patient questionnaire was administered to assess satisfaction and perceived effectiveness. Results: Among patients who underwent Essure followed by NovaSure, 83/117 (71%) returned for a 3-month hysterosalpingogram (HSG). Satisfactory placement and tubal occlusion were noted in 79/83 (95%) of these patients. Amenorrhea or spotting was observed in 72/97 (74%) of patients, 22/97 (23%) reported a satisfactory decrease in menstrual flow, and 3/97 (3%) reported ablation failure. Essure followed by NovaSure did not decrease the effectiveness of either procedure, and no adverse events were attributed to the combination of the two procedures. Patients reported high levels of satisfaction with both procedures. Conclusions: In women seeking permanent birth control and menorrhagia reduction, in-office Essure followed by NovaSure appeared to be safe, effective, and associated with high patient satisfaction. (J GYNECOL SURG 28:1).

Jardín xerófito para divulgación científica

Directory of Open Access Journals (Sweden)

Arcadio Monroy-Ata

2014-01-01

Full Text Available En este trabajo se diseñó y estableció un jardín xerófito con fines de divulgación científica. Ésto se realizó en las áreas verdes del Campus I de la Facultad de Estudios Superiores Zaragoza, de la Universidad Nacional, al oriente de la Ciudad de México. El diseño del jardín consistió en trazar y dibujar, en la superficie del suelo, una espiral logarítmica, una estrella de Vitrubius, un pentágono fractal y un rectángulo áureo. Se utilizaron estacas de 10 cm de alto, pintadas de blanco, para delimitar las curvas y plantas crasas para remarcar las figuras geométricas. Se trasplantaron 29 especies vegetales, con 144 individuos en total, y se instaló un atrapanieblas como modelo de cosecha de agua atmosférica para riego vegetal. La divulgación científica de los conceptos geométricos se ha realizado mediante visitas guiadas. Se concluye que es factible establecer un jardín urbano de cero riego en el Oriente de la capital mexicana, sin embargo, es necesario reforzar las estructuras de las curvas geométricas. También, se requiere establecer páneles informativos sobre las figuras dibujadas sobre el suelo y cédulas con datos técnicos de las especies vegetales, para facilitar la divulgación de los conceptos científicos del diseño base del jardín y la explicación de la función del atrapanieblas.

Evaluation of the Thermo Scientific SureTect Listeria species assay. AOAC Performance Tested Method 071304.

Science.gov (United States)

Cloke, Jonathan; Evans, Katharine; Crabtree, David; Hughes, Annette; Simpson, Helen; Holopainen, Jani; Wickstrand, Nina; Kauppinen, Mikko; Leon-Velarde, Carlos; Larson, Nathan; Dave, Keron

2014-01-01

The Thermo Scientific SureTect Listeria species Assay is a new real-time PCR assay for the detection of all species of Listeria in food and environmental samples. This validation study was conducted using the AOAC Research Institute (RI) Performance Tested Methods program to validate the SureTect Listeria species Assay in comparison to the reference method detailed in International Organization for Standardization 11290-1:1996 including amendment 1:2004 in a variety of foods plus plastic and stainless steel. The food matrixes validated were smoked salmon, processed cheese, fresh bagged spinach, cantaloupe, cooked prawns, cooked sliced turkey meat, cooked sliced ham, salami, pork frankfurters, and raw ground beef. All matrixes were tested by Thermo Fisher Scientific, Microbiology Division, Basingstoke, UK. In addition, three matrixes (pork frankfurters, fresh bagged spinach, and stainless steel surface samples) were analyzed independently as part of the AOAC-RI-controlled independent laboratory study by the University ofGuelph, Canada. Using probability of detection statistical analysis, a significant difference in favour of the SureTect assay was demonstrated between the SureTect and reference method for high level spiked samples of pork frankfurters, smoked salmon, cooked prawns, stainless steel, and low-spiked samples of salami. For all other matrixes, no significant difference was seen between the two methods during the study. Inclusivity testing was conducted with 68 different isolates of Listeria species, all of which were detected by the SureTect Listeria species Assay. None of the 33 exclusivity isolates were detected by the SureTect Listeria species Assay. Ruggedness testing was conducted to evaluate the performance of the assay with specific method deviations outside of the recommended parameters open to variation, which demonstrated that the assay gave reliable performance. Accelerated stability testing was additionally conducted, validating the assay

New technique using LigaSure for endoscopic mucomyotomy of Zenker's diverticulum

DEFF Research Database (Denmark)

Nielsen, Hans Ulrik Kjaerem; Trolle, Waldemar; Rubek, Niclas

2014-01-01

OBJECTIVES/HYPOTHESIS: The purpose of this study is to present a new approach for treatment of Zenker's diverticulum using the LigaSure (Covidien, Mansfield, MA) technique. STUDY DESIGN: A consecutive study with follow-up of 15 patients with Zenker's diverticulum endoscopically treated using...... patients were followed up 5 to 14 months after discharge. RESULTS: The median age of patients was 76 years. The diverticula measured between 2 and 7 cm. The median time of surgery was 33 minutes. All patients but one resumed oral intake within 24 hours. One patient experienced prolonged coughing...... condition. As a new operative instrument, the LigaSure technique constitutes in our opinion a valid and easy alternative for treatment of Zenker's diverticulum compared to other endoscopic techniques....

Validation of the Welch Allyn SureBP (inflation) and StepBP (deflation) algorithms by AAMI standard testing and BHS data analysis.

Science.gov (United States)

Alpert, Bruce S

2011-04-01

We evaluated two new Welch Allyn automated blood pressure (BP) algorithms. The first, SureBP, estimates BP during cuff inflation; the second, StepBP, does so during deflation. We followed the American National Standards Institute/Association for the Advancement of Medical Instrumentation SP10:2006 standard for testing and data analysis. The data were also analyzed using the British Hypertension Society analysis strategy. We tested children, adolescents, and adults. The requirements of the American National Standards Institute/Association for the Advancement of Medical Instrumentation SP10:2006 standard were fulfilled with respect to BP levels, arm sizes, and ages. Association for the Advancement of Medical Instrumentation SP10 Method 1 data analysis was used. The mean±standard deviation for the device readings compared with auscultation by paired, trained, blinded observers in the SureBP mode were -2.14±7.44 mmHg for systolic BP (SBP) and -0.55±5.98 mmHg for diastolic BP (DBP). In the StepBP mode, the differences were -3.61±6.30 mmHg for SBP and -2.03±5.30 mmHg for DBP. Both algorithms achieved an A grade for both SBP and DBP by British Hypertension Society analysis. The SureBP inflation-based algorithm will be available in many new-generation Welch Allyn monitors. Its use will reduce the time it takes to estimate BP in critical patient care circumstances. The device will not need to inflate to excessive suprasystolic BPs to obtain the SBP values. Deflation is rapid once SBP has been determined, thus reducing the total time of cuff inflation and reducing patient discomfort. If the SureBP fails to obtain a BP value, the StepBP algorithm is activated to estimate BP by traditional deflation methodology.

DISIS: prediction of drug response through an iterative sure independence screening.

Directory of Open Access Journals (Sweden)

Yun Fang

Full Text Available Prediction of drug response based on genomic alterations is an important task in the research of personalized medicine. Current elastic net model utilized a sure independence screening to select relevant genomic features with drug response, but it may neglect the combination effect of some marginally weak features. In this work, we applied an iterative sure independence screening scheme to select drug response relevant features from the Cancer Cell Line Encyclopedia (CCLE dataset. For each drug in CCLE, we selected up to 40 features including gene expressions, mutation and copy number alterations of cancer-related genes, and some of them are significantly strong features but showing weak marginal correlation with drug response vector. Lasso regression based on the selected features showed that our prediction accuracies are higher than those by elastic net regression for most drugs.

Time-varying coefficient estimation in SURE models. Application to portfolio management

DEFF Research Database (Denmark)

Casas, Isabel; Ferreira, Eva; Orbe, Susan

This paper provides a detailed analysis of the asymptotic properties of a kernel estimator for a Seemingly Unrelated Regression Equations model with time-varying coefficients (tv-SURE) under very general conditions. Theoretical results together with a simulation study differentiates the cases...

Additional collection devices used in conjunction with the SurePath Liquid-Based Pap Test broom device do not enhance diagnostic utility

Directory of Open Access Journals (Sweden)

O'Connor Jason C

2004-09-01

Full Text Available Abstract Background We have previously shown that use of an EC brush device in combination with the Rovers Cervex-Brush (SurePath broom offered no significant improvement in EC recovery. Here we determine if use of additional collection devices enhance the diagnostic utility of the SurePath Pap for gynecologic cytology. Methods After informed consent, 37 women ages 18–56 receiving their routine cervical examinations were randomized into four experimental groups. Each group was first sampled with the SurePath broom then immediately re-sampled with an additional collection device or devices. Group 1: Rover endocervix brush (n = 8. Group 2: Medscand CytoBrush Plus GT (n = 7. Group 3: Rover spatula + endocervix brush (n = 11. Group 4: Medscand spatula + CytoBrush Plus GT (n = 11. Results Examination of SurePath broom-collected cytology yielded the following abnormal diagnoses: atypia (n = 2, LSIL (n = 5 and HSIL (n = 3. Comparison of these diagnoses to those obtained from paired samples using the additional collection devices showed that use of a second and or third device yielded no additional abnormal diagnoses. Importantly, use of additional devices did not improve upon the abnormal cell recovery of the SurePath broom and in 4/10 cases under-predicted or did not detect the SurePath broom-collected lesion as confirmed by cervical biopsy. Finally, in 36/37 cases, the SurePath broom successfully recovered ECs. Use of additional devices, in Group 3, augmented EC recovery to 37/37. Conclusions Use of additional collection devices in conjunction with the SurePath broom did not enhance diagnostic utility of the SurePath Pap. A potential but not significant improvement in EC recovery might be seen with the use of three devices.

Cytological Evaluation and REBA HPV-ID HPV Testing of Newly Developed Liquid-Based Cytology, EASYPREP: Comparison with SurePath.

Science.gov (United States)

Lee, Youn Soo; Gong, Gyungyub; Sohn, Jin Hee; Ryu, Ki Sung; Lee, Jung Hun; Khang, Shin Kwang; Cho, Kyung-Ja; Kim, Yong-Man; Kang, Chang Suk

2013-06-01

The objective of this study was to evaluate a newly-developed EASYPREP liquid-based cytology method in cervicovaginal specimens and compare it with SurePath. Cervicovaginal specimens were prospectively collected from 1,000 patients with EASYPREP and SurePath. The specimens were first collected by brushing for SurePath and second for EASYPREP. The specimens of both methods were diagnosed according to the Bethesda System. Additionally, we performed to REBA HPV-ID genotyping and sequencing analysis for human papillomavirus (HPV) on 249 specimens. EASYPREP and SurePath showed even distribution of cells and were equal in cellularity and staining quality. The diagnostic agreement between the two methods was 96.5%. Based on the standard of SurePath, the sensitivity, specificity, positive predictive value, and negative predictive value of EASYPREP were 90.7%, 99.2%, 94.8%, and 98.5%, respectively. The positivity of REBA HPV-ID was 49.4% and 95.1% in normal and abnormal cytological samples, respectively. The result of REBA HPV-ID had high concordance with sequencing analysis. EASYPREP provided comparable results to SurePath in the diagnosis and staining quality of cytology examinations and in HPV testing with REBA HPV-ID. EASYPREP could be another LBC method choice for the cervicovaginal specimens. Additionally, REBA HPV-ID may be a useful method for HPV genotyping.

Green4sure. The Green Energy Plan. Background report; Green4sure. Het Groene Energieplan. Achtergrondrapport

Energy Technology Data Exchange (ETDEWEB)

Rooijers, F.J. (ed.) (and others)

2007-05-15

The Green Energy Plan indicates how the ambitious climate targets of the cabinet can be achieved at the lowest cost. Main issue is that all energy consumers individually (industry, electricity production, aviation) or collectively (built environment, transport) are placed in an emission credits system with climate budget. The effort and costs are differentiated in order to ensure a largest possible acceptance. Moreover, new standards will be introduced for vehicles, buildings (existing and new) and appliances. The effects of the plan have been calculated and will lead to the desired halving of greenhouse gas emissions, an annual efficiency improvement of 2.1%. In 2030 the annual cost will amount to over 4 billion euro, but there are also substantial social benefits. This background report focuses on households, utilities and SME, greenhouse farming, traffic, industry, electricity, renewable energy, biomass and biodiversity, CO2 storage, external costs and benefits of Green4Sure, employment and socio-economic effects as well as the climate act. [mk]. [Dutch] Het Groene Energieplan geeft aan hoe de ambitieuze klimaatdoelen van het kabinet gehaald kunnen worden tegen de laagste kosten. Belangrijkste punten zijn dat alle energiegebruikers individueel (industrie, elektriciteitsproductie, luchtvaart) of collectief (gebouwde omgeving, transport) onder een emissierechtensysteem met klimaatbudget komen te vallen. De inspanningen, en daarmee de kosten zijn gedifferentieerd om de acceptatie zo groot mogelijk te laten zijn. Daarnaast komen er normen voor voertuigen, gebouwen (nieuw en bestaand) en apparaten. De effecten van het plan zijn doorgerekend en leiden tot de gewenste halvering van de broeikasgassen, een jaarlijkse efficiencyverbetering van 2,1%. De kosten bedragen in 2030 jaarlijks ruim 4 miljard euro, maar er zijn ook forse maatschappelijke baten. In dit achtergrondrapport wordt aandacht besteed aan huishoudens, utiliteiten en MKB, glastuinbouw, verkeer, industrie

Efficacy and patient satisfaction after NovaSure and Minerva endometrial ablation for treating abnormal uterine bleeding: a retrospective comparative study.

Science.gov (United States)

Scordalakes, Constantine; delRosario, Robert; Shimer, Andrew; Stankiewicz, Russell

2018-01-01

Compare amenorrhea rate, menstrual symptoms, patient satisfaction, and adverse events in women who underwent endometrial ablation with the NovaSure versus the Minerva radiofrequency ablation systems. We surveyed 189 premenopausal women (mean 40.8±6.2 years old) who underwent endometrial ablation for abnormal uterine bleeding using the NovaSure (n=97) or Minerva (n=92) systems, at four private US gynecology clinics, and whose procedure date was after July 2015 with follow-up ≥3 months. Women were surveyed an average of 11.3±3.9 months (range 137-532 days) after ablation. The subject-reported amenorrhea rate was 52% higher in NovaSure subjects than Minerva subjects (64% and 42%, respectively; p =0.004). Age and bleeding cyclicity did not affect amenorrhea rate in either group. Normal-to-no bleeding was reported by >90% of subjects after either treatment. NovaSure was significantly more effective than Minerva at reducing pad/tampon use in women with any residual bleeding (2.4±5.2 items/day versus 4.7±5.5 items/day, p =0.049). NovaSure was significantly more effective than Minerva at reducing premenstrual syndrome (PMS) symptoms ( p =0.019) and menstrual pain ( p =0.003), and more NovaSure subjects (94%) than Minerva subjects (78%) were satisfied with clinical outcomes ( p =0.003). Adverse events did not differ by treatment; three women in each group progressed to hysterectomy. While overall bleeding reduction in premenopausal women with abnormal uterine bleeding was excellent with either endometrial ablation system, NovaSure treatment resulted in a higher patient-reported 1-year amenorrhea rate, and women with residual bleeding used fewer pads and tampons than Minerva-treated women. Additionally, NovaSure subjects reported better menstrual-related life quality and PMS symptom alleviation, and greater satisfaction with outcomes than Minerva-treated women.

How Can Consumers Be Sure a Genetic Test Is Valid and Useful?

Science.gov (United States)

... a genetic test is valid and useful? How can consumers be sure a genetic test is valid ... particular gene or genetic change. In other words, can the test accurately detect whether a specific genetic ...

From Head Start to Sure Start: Reflections on Policy Transfer

Science.gov (United States)

Welshman, John

2010-01-01

This article uses the history of debates over the US Head Start programme (1965), Early Head Start (1994) and the UK Sure Start initiative (1998), as a window on to policy transfer. In all the three, the aim was that early intervention could offer a means of boosting children's educational attainment and of countering the wider effects of poverty…

Are Baby Boomers healthier than Generation X? A profile of Australia's working generations using National Health Survey data.

Directory of Open Access Journals (Sweden)

Rhiannon Pilkington

Full Text Available BACKGROUND: To determine differences in sociodemographic and health related characteristics of Australian Baby Boomers and Generation X at the same relative age. METHODS: The 1989/90 National Health Survey (NHS for Boomers (1946-1965 and the 2007/08 NHS for Generation Xers (1966-1980 was used to compare the cohorts at the same age of 25-44 years. Generational differences for males and females in education, employment, smoking, physical activity, Body Mass Index (BMI, self-rated health, and diabetes were determined using Z tests. Prevalence estimates and p-values are reported. Logistic regression models examining overweight/obesity (BMI≥25 and diabetes prevalence as the dependent variables, with generation as the independent variable were adjusted for sex, age, education, physical activity, smoking and BMI(diabetes model only. Adjusted odds ratios (OR and 95% confidence intervals are reported. RESULTS: At the same age, tertiary educational attainment was higher among Generation X males (27.6% vs. 15.2% p30. There were no differences in physical activity. Modelling indicated that Generation X were more likely than Boomers to be overweight/obese (OR:2.09, 1.77-2.46 and have diabetes (OR:1.79, 1.47-2.18. CONCLUSION: Self-rated health has deteriorated while obesity and diabetes prevalence has increased. This may impact workforce participation and health care utilization in the future.

Value priorities and their relations with quality of life in the Baby Boomer generation of Lithuanian nurses: a cross-sectional survey.

Science.gov (United States)

Blazeviciene, Aurelija; Jakusovaite, Irayda

2007-11-08

The understanding of the values of nurses is especially important, since nurses constitute 80% of workforce in the healthcare system in Lithuania. In addition to that, nursing is one of the major constituents of healthcare. The aim of this study was to determine what values predominate in the cohort of Baby Boomer nurses, and to evaluate the relation of these values with quality of life using M. Rokeach's terminal and instrumental values scale. M.Rokeach distinguished terminal values (such as world peace, wisdom, and happiness), which are preferred end-states of existence, and instrumental values (such as responsibility and cooperation), which are preferred modes of conduct. We performed a representative anonymous questionnaire-based inquiry of nurses working in regional hospitals of Lithuania. The nurses who participated in the study were distributed into four work cohorts: the Veterans, the Baby Boomers, the Generation Xers, and the Generation Nexters. The majority of the nurses belonged to the Baby Boomers and the Generation Xers cohorts. Since in Lithuania, like in the whole Europe, the representatives of the Baby Boomers generation are predominating among working people, we selected this cohort (N = 387) for the analysis. The survey data was processed using the SPSS statistical software package The main values in life were family security, tranquility, and a sense of accomplishment. However, such values as true friendship, equality, and pleasurable and leisured life were seen as rather insignificant. The most important instrumental values were honesty, skillfulness, and responsibility. Our study showed a statistically significant (albeit weak) correlation between the QOL and terminal values such as the sense of accomplishment, tranquility, equality, and pleasure, as well as the instrumental value - obedience. We detected a statistically significant relationship between good QOL and satisfaction with oneself, relationships with the surrounding people, and

LigaSure small jaws versus cold knife dissection in superficial parotidectomy

DEFF Research Database (Denmark)

Hahn, Christoffer Holst; Sørensen, Christian Hjort

2013-01-01

parotidectomy, and 19 patients had cold knife parotidectomy. Operative time, blood loss, facial palsy and other complications were assessed. The use of LigaSure was associated with a significant reduction in mean operative time (128 min vs. 155, p = 0.04) and intraoperative blood loss (40 mL vs. 115 mL, p ...

Towards a Model of Human Resource Solutions for Achieving Intergenerational Interaction in Organisations

Science.gov (United States)

McGuire, David; By, Rune Todnem; Hutchings, Kate

2007-01-01

Purpose: Achieving intergenerational interaction and avoiding conflict is becoming increasingly difficult in a workplace populated by three generations--Baby Boomers, Generation X-ers and Generation Y-ers. This paper presents a model and proposes HR solutions towards achieving co-operative generational interaction. Design/methodology/approach:…

Generational differences of the frontline nursing workforce in relation to job satisfaction: what does the literature reveal?

Science.gov (United States)

Saber, Deborah A

2013-01-01

The job satisfaction of registered nurses has been found to be associated with retention, organizational commitment, workforce safety, and cost savings to health care organizations. Satisfaction of the workforce is vital because nursing turnover can be detrimental for a labor force that is growing older. However, the summation of the most important variables that are linked to job satisfaction has been difficult to discern in part because the workforce includes 3 main generations (ie, Baby Boomers, Gen Xers, and Millennials) with unique work values that drive their job satisfiers. This article provides a review of existing literature to examine the differences in variables that are linked to job satisfaction that exist between the generational cohorts. Differences in stress sources, need for work-life balance, and compensation are discussed. The knowledge about generationally driven variables that influence job satisfaction can help managers develop strategies to maintain a diverse nursing workforce.

Generation X, intergenerational justice and the renewal of the traditioning process

Directory of Open Access Journals (Sweden)

Cory L. Seibel

2010-10-01

Full Text Available The church has the task of transmitting its faith tradition from one generation to the next. In the transition to postmodernity, many established congregations have proven to be ineffective at this traditioning process in relation to Generation X (Gen X, the first postmodern generation. The reasons for the ineffectiveness are complex. This article focuses on two key factors that contribute to the problem: the reduction of the church’s tradition to its particular expression within the culture of modernity and the marginalisation experienced by Gen Xers within many established churches. The latter has prevented them from becoming effective bearers of the church’s tradition. If this trend is to be reversed, churches should succeed in renewing their traditions in a way that is meaningful in a postmodern context. The challenge will be to overcome the dynamics of reductionism and marginalisation. In developing the argument, the jubilee themes of ‘return’ and ‘release’ are applied to the intergenerational dynamics of established congregations. The article concludes that local congregations should embrace a renewed commitment to intergenerational justice, which will encourage equity between the generations.

Almost Surely Asymptotic Stability of Numerical Solutions for Neutral Stochastic Delay Differential Equations

Directory of Open Access Journals (Sweden)

Zhanhua Yu

2011-01-01

convergence theorem. It is shown that the Euler method and the backward Euler method can reproduce the almost surely asymptotic stability of exact solutions to NSDDEs under additional conditions. Numerical examples are demonstrated to illustrate the effectiveness of our theoretical results.

7 CFR 760.102 - Administration of ELAP, LFP, LIP, SURE, and TAP.

Science.gov (United States)

2010-01-01

... 7 Agriculture 7 2010-01-01 2010-01-01 false Administration of ELAP, LFP, LIP, SURE, and TAP. 760.102 Section 760.102 Agriculture Regulations of the Department of Agriculture (Continued) FARM SERVICE... TAP. (a) The programs in subparts C through H of this part will be administered under the general...

Almost sure exponential stability of stochastic fuzzy cellular neural networks with delays

International Nuclear Information System (INIS)

Zhao Hongyong; Ding Nan; Chen Ling

2009-01-01

This paper is concerned with the problem of exponential stability analysis for fuzzy cellular neural network with delays. By constructing suitable Lyapunov functional and using stochastic analysis we present some sufficient conditions ensuring almost sure exponential stability for the network. Moreover, an example is given to demonstrate the advantages of our method.

Are Baby Boomers healthier than Generation X? A profile of Australia's working generations using National Health Survey data.

Science.gov (United States)

Pilkington, Rhiannon; Taylor, Anne W; Hugo, Graeme; Wittert, Gary

2014-01-01

To determine differences in sociodemographic and health related characteristics of Australian Baby Boomers and Generation X at the same relative age. The 1989/90 National Health Survey (NHS) for Boomers (1946-1965) and the 2007/08 NHS for Generation Xers (1966-1980) was used to compare the cohorts at the same age of 25-44 years. Generational differences for males and females in education, employment, smoking, physical activity, Body Mass Index (BMI), self-rated health, and diabetes were determined using Z tests. Prevalence estimates and p-values are reported. Logistic regression models examining overweight/obesity (BMI≥25) and diabetes prevalence as the dependent variables, with generation as the independent variable were adjusted for sex, age, education, physical activity, smoking and BMI(diabetes model only). Adjusted odds ratios (OR) and 95% confidence intervals are reported. At the same age, tertiary educational attainment was higher among Generation X males (27.6% vs. 15.2% pBoomer females had a higher rate of unemployment (5.6% vs. 2.5% pBoomer males and females had a higher prevalence of "excellent" self-reported health (35.9% vs. 21.8% pGeneration X males (18.3% vs. 9.4% p30). There were no differences in physical activity. Modelling indicated that Generation X were more likely than Boomers to be overweight/obese (OR:2.09, 1.77-2.46) and have diabetes (OR:1.79, 1.47-2.18). Self-rated health has deteriorated while obesity and diabetes prevalence has increased. This may impact workforce participation and health care utilization in the future.

Keeping All Generations Happy: the Xers, Boomers, and Beyond...

Science.gov (United States)

Baker, George A.

1998-01-01

Analyzes the developmental learning needs of community college students by age group, using data gathered by North Carolina State University's Student Assessment of the College Environment (SACE). Asserts that colleges must accommodate students ranging in age from under 20 to over 70. (JDI)

Lasers in tattoo and pigmentation control: role of the PicoSure(®) laser system.

Science.gov (United States)

Torbeck, Richard; Bankowski, Richard; Henize, Sarah; Saedi, Nazanin

2016-01-01

The use of picosecond lasers to remove tattoos has greatly improved due to the long-standing outcomes of nanosecond lasers, both clinically and histologically. The first aesthetic picosecond laser available for this use was the PicoSure(®) laser system (755/532 nm). Now that a vast amount of research on its use has been conducted, we performed a comprehensive review of the literature to validate the continued application of the PicoSure(®) laser system for tattoo removal. A PubMed search was conducted using the term "picosecond" combined with "laser", "dermatology", and "laser tattoo removal". A total of 13 articles were identified, and ten of these met the inclusion criteria for this review. The majority of studies showed that picosecond lasers are an effective and safe treatment mode for the removal of tattoo pigments. Several studies also indicated potential novel applications of picosecond lasers in the removal of various tattoo pigments (eg, black, red, and yellow). Adverse effects were generally mild, such as transient hypopigmentation or blister formation, and were rarely more serious, such as scarring and/or textural change. Advancements in laser technologies and their application in cutaneous medicine have revolutionized the field of laser surgery. Computational modeling provides evidence that the optimal pulse durations for tattoo ink removal are in the picosecond domain. It is recommended that the PicoSure(®) laser system continue to be used for safe and effective tattoo removal, including for red and yellow pigments.

Role of minor salivary glands in developing patient-rated xerostomia and sticky saliva during day and night

International Nuclear Information System (INIS)

Beetz, Ivo; Schilstra, Cornelis; Visink, Arjan; Schaaf, Arjen van der; Bijl, Henk P.; Laan, Bernard F.A.M. van der; Steenbakkers, Roel J.H.M.; Langendijk, Johannes A.

2013-01-01

Purpose: The purpose of this prospective study was to investigate the relationship between xerostomia during the day (XER day ) and night (XER night ) and sticky saliva during the day (STIC day ) and night (STIC night ) and dose distributions in different major and minor salivary glands among head and neck cancer (HNC) patients treated with primary radiotherapy (RT) or chemoradiation (CHRT). Methods and materials: The study population was composed of 201 consecutive HNC patients treated with intensity modulated radiotherapy (IMRT) or 3-dimensional conformal radiotherapy (3D-CRT). All patients were included in a standard follow up programme in which acute and late side effects and quality of life (QoL) were prospectively assessed, prior to, during and after treatment. The primary endpoints were XER day , XER night , STIC day , STIC night as assessed by the Groningen Radiotherapy Induced Xerostomia questionnaire (GRIX) six months after completion of treatment. Organs at risk (OARs) potentially involved in salivary function were delineated on planning-CT, including the parotid, submandibular and sublingual glands and the minor glands in the soft palate, buccal mucosa and lips. Patients with moderate-to-severe xerostomia or moderate-to-severe sticky saliva, respectively, at baseline were excluded. In order to determine which salivary glands were most important, a multivariate logistic regression analysis with an extended bootstrapping technique was used. Results: In total, 29% and 19% of the cases suffered from XER day and XER night , respectively. The multivariate analysis showed that baseline xerostomia and the mean parotid gland dose were the most important predictors for XER day and XER night . At 6 months after (CH)RT, 10% and 12% of the cases reported STIC day and STIC night respectively. We were not able to identify prognostic factors related to dose distributions with regard to STIC day . The mean submandibular gland dose was associated with STIC night

Value priorities and their relations with quality of life in the Baby Boomer generation of Lithuanian nurses: a cross-sectional survey

Directory of Open Access Journals (Sweden)

Jakusovaite Irayda

2007-11-01

Full Text Available Abstract Background The understanding of the values of nurses is especially important, since nurses constitute 80% of workforce in the healthcare system in Lithuania. In addition to that, nursing is one of the major constituents of healthcare. The aim of this study was to determine what values predominate in the cohort of Baby Boomer nurses, and to evaluate the relation of these values with quality of life using M. Rokeach's terminal and instrumental values scale. M.Rokeach distinguished terminal values (such as world peace, wisdom, and happiness, which are preferred end-states of existence, and instrumental values (such as responsibility and cooperation, which are preferred modes of conduct. Methods We performed a representative anonymous questionnaire-based inquiry of nurses working in regional hospitals of Lithuania. The nurses who participated in the study were distributed into four work cohorts: the Veterans, the Baby Boomers, the Generation Xers, and the Generation Nexters. The majority of the nurses belonged to the Baby Boomers and the Generation Xers cohorts. Since in Lithuania, like in the whole Europe, the representatives of the Baby Boomers generation are predominating among working people, we selected this cohort (N = 387 for the analysis. The survey data was processed using the SPSS statistical software package Results The main values in life were family security, tranquility, and a sense of accomplishment. However, such values as true friendship, equality, and pleasurable and leisured life were seen as rather insignificant. The most important instrumental values were honesty, skillfulness, and responsibility. Our study showed a statistically significant (albeit weak correlation between the QOL and terminal values such as the sense of accomplishment, tranquility, equality, and pleasure, as well as the instrumental value – obedience. We detected a statistically significant relationship between good QOL and satisfaction with oneself

′Sure closure′-skin stretching system, our clinical experience

Directory of Open Access Journals (Sweden)

Subramania K

2005-01-01

Full Text Available Objective: In clinical practice of reconstructive surgery one of the problems one routinely comes across is skin and soft tissue defects, which require coverage. Coverage of such wounds requires primary/secondary closure, skin grafting or flaps. The objective of our clinical series was to assess the efficacy of sure closure skin stretching system for closure of defects which otherwise would have required major flap cover or skin grafting. Methods: Our series included five patients with different causes and types of wound defects namely: 1. Post-traumatic soft tissue defect on dorsum of hand. 2. Post fasciotomy wound on leg (anterolateral aspect. 3. Abdominal wound dehiscence following surgery for enterocutaneous fistula. 4. Leg soft tissue defect following dehiscence of fasciocutaneous flap. 5. Secondary defect following harvesting a lateral arm/forearm free flap. The device was applied to skin edges after preparing the wound under local anesthesia and the skin edges were brought together by turning the skin-stretching knob. After adequate approximation of the edges of the wound it was sutured by conventional suturing techniques. Results: All the wounds could be successfully closed using the skin stretching system in our series. The time taken for the closure ranged from 2 to 48 h. Conclusions: Sure closure skin stretching system is an effective device for closing some of the skin defects which otherwise would have required skin flaps or grafts. In all the patients wound closure could be achieved by this method and was carried out under local anesthesia. Use of this technique is simple and helps to reduce the morbidity and cost of treatment by allowing the reconstructive surgeon to avoid using major flaps or grafts.

Evaluation of the Thermo Scientific SureTect Salmonella species assay. AOAC Performance Tested Method 051303.

Science.gov (United States)

Cloke, Jonathan; Clark, Dorn; Radcliff, Roy; Leon-Velarde, Carlos; Larson, Nathan; Dave, Keron; Evans, Katharine; Crabtree, David; Hughes, Annette; Simpson, Helen; Holopainen, Jani; Wickstrand, Nina; Kauppinen, Mikko

2014-01-01

The Thermo Scientific SureTect Salmonella species Assay is a new real-time PCR assay for the detection of Salmonellae in food and environmental samples. This validation study was conducted using the AOAC Research Institute (RI) Performance Tested Methods program to validate the SureTect Salmonella species Assay in comparison to the reference method detailed in International Organization for Standardization 6579:2002 in a variety of food matrixes, namely, raw ground beef, raw chicken breast, raw ground pork, fresh bagged lettuce, pork frankfurters, nonfat dried milk powder, cooked peeled shrimp, pasteurized liquid whole egg, ready-to-eat meal containing beef, and stainless steel surface samples. With the exception of liquid whole egg and fresh bagged lettuce, which were tested in-house, all matrixes were tested by Marshfield Food Safety, Marshfield, WI, on behalf of Thermo Fisher Scientific. In addition, three matrixes (pork frankfurters, lettuce, and stainless steel surface samples) were analyzed independently as part of the AOAC-RI-controlled laboratory study by the University of Guelph, Canada. No significant difference by probability of detection or McNemars Chi-squared statistical analysis was found between the candidate or reference methods for any of the food matrixes or environmental surface samples tested during the validation study. Inclusivity and exclusivity testing was conducted with 117 and 36 isolates, respectively, which demonstrated that the SureTect Salmonella species Assay was able to detect all the major groups of Salmonella enterica subspecies enterica (e.g., Typhimurium) and the less common subspecies of S. enterica (e.g., arizoniae) and the rarely encountered S. bongori. None of the exclusivity isolates analyzed were detected by the SureTect Salmonella species Assay. Ruggedness testing was conducted to evaluate the performance of the assay with specific method deviations outside of the recommended parameters open to variation (enrichment time

An Almost Sure Ergodic Theorem for Quasistatic Dynamical Systems

International Nuclear Information System (INIS)

Stenlund, Mikko

2016-01-01

We prove an almost sure ergodic theorem for abstract quasistatic dynamical systems, as an attempt of taking steps toward an ergodic theory of such systems. The result at issue is meant to serve as a working counterpart of Birkhoff’s ergodic theorem which fails in the quasistatic setup. It is formulated so that the conditions, which essentially require sufficiently good memory-loss properties, could be verified in a straightforward way in physical applications. We also introduce the concept of a physical family of measures for a quasistatic dynamical system. These objects manifest themselves, for instance, in numerical experiments. We then illustrate the use of the theorem by examples.

An Almost Sure Ergodic Theorem for Quasistatic Dynamical Systems

Energy Technology Data Exchange (ETDEWEB)

Stenlund, Mikko, E-mail: mikko.stenlund@helsinki.fi [University of Helsinki, Department of Mathematics and Statistics (Finland)

2016-09-15

We prove an almost sure ergodic theorem for abstract quasistatic dynamical systems, as an attempt of taking steps toward an ergodic theory of such systems. The result at issue is meant to serve as a working counterpart of Birkhoff’s ergodic theorem which fails in the quasistatic setup. It is formulated so that the conditions, which essentially require sufficiently good memory-loss properties, could be verified in a straightforward way in physical applications. We also introduce the concept of a physical family of measures for a quasistatic dynamical system. These objects manifest themselves, for instance, in numerical experiments. We then illustrate the use of the theorem by examples.

Lasers in tattoo and pigmentation control: role of the PicoSure® laser system

Science.gov (United States)

Torbeck, Richard; Bankowski, Richard; Henize, Sarah; Saedi, Nazanin

2016-01-01

Background and objectives The use of picosecond lasers to remove tattoos has greatly improved due to the long-standing outcomes of nanosecond lasers, both clinically and histologically. The first aesthetic picosecond laser available for this use was the PicoSure® laser system (755/532 nm). Now that a vast amount of research on its use has been conducted, we performed a comprehensive review of the literature to validate the continued application of the PicoSure® laser system for tattoo removal. Study design and methods A PubMed search was conducted using the term “picosecond” combined with “laser”, “dermatology”, and “laser tattoo removal”. Results A total of 13 articles were identified, and ten of these met the inclusion criteria for this review. The majority of studies showed that picosecond lasers are an effective and safe treatment mode for the removal of tattoo pigments. Several studies also indicated potential novel applications of picosecond lasers in the removal of various tattoo pigments (eg, black, red, and yellow). Adverse effects were generally mild, such as transient hypopigmentation or blister formation, and were rarely more serious, such as scarring and/or textural change. Conclusion Advancements in laser technologies and their application in cutaneous medicine have revolutionized the field of laser surgery. Computational modeling provides evidence that the optimal pulse durations for tattoo ink removal are in the picosecond domain. It is recommended that the PicoSure® laser system continue to be used for safe and effective tattoo removal, including for red and yellow pigments. PMID:27194919

Comparison of SureSight autorefractor and plusoptiX A09 photoscreener for vision screening in rural Honduras.

Science.gov (United States)

Silbert, David I; Matta, Noelle S; Ely, Amanda L

2014-02-01

To evaluate the SureSight autorefractor and compare it to the plusoptiX A09 photoscreener in the detection of amblyopia risk factors in a cohort of Honduran children examined during medical mission work and to assess the utility of both devices in the rural setting. The medical records of patients who had undergone SureSight autorefractor screening, plusoptiX photoscreening, and a gold standard pediatric ophthalmology examination, including cycloplegic refraction, during a recent medical mission trip to Honduras were retrospectively reviewed. A total of 216 children were examined. Of these, 9 (4%) were found to have amblyopia risk factors based on the current referral criteria of the American Association for Pediatric Ophthalmology and Strabismus on ophthalmological examination. The plusoptiX was found to have 89% sensitivity and 80% specificity; the SureSight, using manufacturer's referral criteria, was found to have sensitivity of 89% and specificity of 71%. Both devices were found to be reliable vision screening devices when used on the general population of remote villages in Honduras, although the specificity of the plusoptiX A09 was higher. Copyright © 2014 American Association for Pediatric Ophthalmology and Strabismus. Published by Mosby, Inc. All rights reserved.

Do baby boomers use more healthcare services than other generations? Longitudinal trajectories of physician service use across five birth cohorts

Science.gov (United States)

Canizares, Mayilee; Gignac, Monique; Hogg-Johnson, Sheilah; Glazier, Richard H; Badley, Elizabeth M

2016-01-01

Objective In light of concerns for meeting the provision of healthcare services given the large numbers of ageing baby boomers, we compared the trajectories of primary care and specialist services use across the lifecourse of 5 birth cohorts and examined factors associated with birth cohort differences. Design Longitudinal panel. Setting Canadian National Population Health Survey (1994–2011). Population Sample of 10 186 individuals aged 20–69 years in 1994–1995 and who were from 5 birth cohorts: Generation X (Gen X; born: 1965–1974), Younger Baby Boomers (born: 1955–1964), Older Baby Boomers (born: 1945–1954), World War II (born: 1935–1944) and pre-World War II (born: 1925–1934). Main outcomes Use of primary care and specialist services. Results Although the overall pattern suggested less use of physician services by each successive recent cohort, this blinded differences in primary and specialist care use by cohort. Multilevel analyses comparing cohorts showed that Gen Xers and younger boomers, particularly those with multimorbidity, were less likely to use primary care than earlier cohorts. In contrast, specialist use was higher in recent cohorts, with Gen Xers having the highest specialist use. These increases were explained by the increasing levels of multimorbidity. Education, income, having a regular source of care, sedentary lifestyle and obesity were significantly associated with physician services use, but only partially contributed to cohort differences. Conclusions The findings suggest a shift from primary care to specialist care among recent cohorts, particularly for those with multimorbidity. This is of concern given policies to promote primary care services to prevent and manage chronic conditions. There is a need for policies to address important generational differences in healthcare preferences and the balance between primary and specialty care to ensure integration and coordination of healthcare delivery. PMID:27687902

Comparison and Efficacy of LigaSure and Rubber Band Ligature in Closing the Inflamed Cecal Stump in a Rat Model of Acute Appendicitis

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Chun-Chieh Yeh

2015-01-01

Full Text Available Safety of either LigaSure or rubber band in closing inflamed appendiceal stump in acute appendicitis has been less investigated. In this study, cecal ligation followed by resecting inflamed cecum was performed to mimic appendectomy in a rat model of acute appendicitis. Rats were sacrificed immediately (Group A and 7 days (Group B after cecal resection, respectively. The cecal stumps were closed by silk ligature (S, 5 mm LigaSure (L, or rubber band (R. Seven days after cecal resection, the LigaSure (BL and silk subgroups (BS had significantly less intra-abdominal adhesion and better laparotomy wound healing than rubber band subgroup (BR. The initial bursting pressure at cecal stump was comparable among the three methods; along with tissue healing process, both BL and BS provided a higher bursting pressure than BR 7 days after appendectomy. BL subgroup had more abundant hydroxyproline deposition than BS and BR subgroup. Furthermore, serum TNF-α in BR group kept persistently increasing along with time after cecal resection. Thus, the finding that LigaSure but not rubber band is safe in sealing off the inflamed cecal stump in rat model of acute appendicitis suggests the possibility of applying LigaSure for appendectomy via single port procedure or natural orifice transluminal endoscopic surgery (NOTES.

Equidistribution for Nonuniformly Expanding Dynamical Systems, and Application to the Almost Sure Invariance Principle

Science.gov (United States)

Korepanov, Alexey

2017-12-01

Let {T : M \\to M} be a nonuniformly expanding dynamical system, such as logistic or intermittent map. Let {v : M \\to R^d} be an observable and {v_n = \\sum_{k=0}^{n-1} v circ T^k} denote the Birkhoff sums. Given a probability measure {μ} on M, we consider v n as a discrete time random process on the probability space {(M, μ)} . In smooth ergodic theory there are various natural choices of {μ} , such as the Lebesgue measure, or the absolutely continuous T-invariant measure. They give rise to different random processes. We investigate relation between such processes. We show that in a large class of measures, it is possible to couple (redefine on a new probability space) every two processes so that they are almost surely close to each other, with explicit estimates of "closeness". The purpose of this work is to close a gap in the proof of the almost sure invariance principle for nonuniformly hyperbolic transformations by Melbourne and Nicol.

Are Baby Boomers Healthier than Generation X? A Profile of Australia’s Working Generations Using National Health Survey Data

Science.gov (United States)

Pilkington, Rhiannon; Taylor, Anne W.; Hugo, Graeme; Wittert, Gary

2014-01-01

Background To determine differences in sociodemographic and health related characteristics of Australian Baby Boomers and Generation X at the same relative age. Methods The 1989/90 National Health Survey (NHS) for Boomers (1946–1965) and the 2007/08 NHS for Generation Xers (1966–1980) was used to compare the cohorts at the same age of 25–44 years. Generational differences for males and females in education, employment, smoking, physical activity, Body Mass Index (BMI), self-rated health, and diabetes were determined using Z tests. Prevalence estimates and p-values are reported. Logistic regression models examining overweight/obesity (BMI≥25) and diabetes prevalence as the dependent variables, with generation as the independent variable were adjusted for sex, age, education, physical activity, smoking and BMI(diabetes model only). Adjusted odds ratios (OR) and 95% confidence intervals are reported. Results At the same age, tertiary educational attainment was higher among Generation X males (27.6% vs. 15.2% pBoomer females had a higher rate of unemployment (5.6% vs. 2.5% pBoomer males and females had a higher prevalence of “excellent” self-reported health (35.9% vs. 21.8% pGeneration X males (18.3% vs. 9.4% p30). There were no differences in physical activity. Modelling indicated that Generation X were more likely than Boomers to be overweight/obese (OR:2.09, 1.77–2.46) and have diabetes (OR:1.79, 1.47–2.18). Conclusion Self-rated health has deteriorated while obesity and diabetes prevalence has increased. This may impact workforce participation and health care utilization in the future. PMID:24671114

Reshaping Millennials as Future Leaders of the Marine Corps

Science.gov (United States)

2016-02-04

children of divorce, and kids with two working parents , the upbringing of Millennials consisted of “helicopter parents ” who hovered over them their...including Baby Boomers, Generation Xers, and Millennials. Each generation has unique characteristics that influence how they prefer to lead and be...Leadership ...................................................................................... 9 Idealized Influence

Lasers in tattoo and pigmentation control: role of the PicoSure® laser system

Directory of Open Access Journals (Sweden)

Torbeck R

2016-05-01

Full Text Available Richard Torbeck,1 Richard Bankowski,2 Sarah Henize,3 Nazanin Saedi,11Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, 2Cynosure, Inc, Westford, MA, 3Huron Consulting Group, Chicago, IL, USABackground and objectives: The use of picosecond lasers to remove tattoos has greatly improved due to the long-standing outcomes of nanosecond lasers, both clinically and histologically. The first aesthetic picosecond laser available for this use was the PicoSure® laser system (755/532 nm. Now that a vast amount of research on its use has been conducted, we performed a comprehensive review of the literature to validate the continued application of the PicoSure® laser system for tattoo removal.Study design and methods: A PubMed search was conducted using the term "picosecond" combined with "laser", "dermatology", and "laser tattoo removal".Results: A total of 13 articles were identified, and ten of these met the inclusion criteria for this review. The majority of studies showed that picosecond lasers are an effective and safe treatment mode for the removal of tattoo pigments. Several studies also indicated potential novel applications of picosecond lasers in the removal of various tattoo pigments (eg, black, red, and yellow. Adverse effects were generally mild, such as transient hypopigmentation or blister formation, and were rarely more serious, such as scarring and/or textural change.Conclusion: Advancements in laser technologies and their application in cutaneous medicine have revolutionized the field of laser surgery. Computational modeling provides evidence that the optimal pulse durations for tattoo ink removal are in the picosecond domain. It is recommended that the PicoSure® laser system continue to be used for safe and effective tattoo removal, including for red and yellow pigments.Keywords: tattoo, removal, laser, picosecond 

Electrocautery versus Ultracision versus LigaSure in Surgical Management of Hyperhidrosis.

Science.gov (United States)

Divisi, Duilio; Di Leonardo, Gabriella; De Vico, Andrea; Crisci, Roberto

2015-12-01

The aim of the study was to evaluate the sympathectomy procedures for primary hyperhidrosis in terms of complications and effectiveness. From January 2010 to September 2012 we performed 130 sympathectomies in 65 patients, 27 males (42%) and 38 females (58%). Electrocoagulation was used in 20 procedures (15%), ultrasonic scalpel in 54 (42%), and radiofrequency dissector in 56 (43%). Seven patients (11%) underwent bilateral sympathectomy in the same surgical session, while in 58 (89%) the right surgical approach was delayed 30 days from the first procedure. We noticed 12 complications (9%): (a) chest pain in 6 patients (4 with electrocoagulation, 1 with ultrasonic scalpel, and 1 with radiofrequency dissector), which disappeared in 20 ± 1 day; (b) paresthesias in 3 electrocoagulation patients, was solved in 23 ± 5 days; (c) bradycardia in 1 ultrasonic patient, normalized in 4th postoperative hour; (d) unilateral relapse in 2 electrocoagulation patients after the second side approach, positively treated in 1 patient by resurgery in video-assisted thoracoscopy (VAT). The quality-adjusted life year and the quality of life evaluation revealed a statistically significant improvement (p = 0.02) in excessive sweating and general satisfaction after surgery, with Ultracision and LigaSure showing better findings than electrocoagulation. The latest generation devices offered greater efficacy in the treatment of hyperhidrosis, minimizing complications and facilitating the resumption of normal work and social activity of patients. Georg Thieme Verlag KG Stuttgart · New York.

Chromosomal Amplification of the blaOXA-58 Carbapenemase Gene in a Proteus mirabilis Clinical Isolate.

Science.gov (United States)

Girlich, Delphine; Bonnin, Rémy A; Bogaerts, Pierre; De Laveleye, Morgane; Huang, Daniel T; Dortet, Laurent; Glaser, Philippe; Glupczynski, Youri; Naas, Thierry

2017-02-01

Horizontal gene transfer may occur between distantly related bacteria, thus leading to genetic plasticity and in some cases to acquisition of novel resistance traits. Proteus mirabilis is an enterobacterial species responsible for human infections that may express various acquired β-lactam resistance genes, including different classes of carbapenemase genes. Here we report a Proteus mirabilis clinical isolate (strain 1091) displaying resistance to penicillin, including temocillin, together with reduced susceptibility to carbapenems and susceptibility to expanded-spectrum cephalosporins. Using biochemical tests, significant carbapenem hydrolysis was detected in P. mirabilis 1091. Since PCR failed to detect acquired carbapenemase genes commonly found in Enterobacteriaceae, we used a whole-genome sequencing approach that revealed the presence of bla OXA-58 class D carbapenemase gene, so far identified only in Acinetobacter species. This gene was located on a 3.1-kb element coharboring a bla AmpC -like gene. Remarkably, these two genes were bracketed by putative XerC-XerD binding sites and inserted at a XerC-XerD site located between the terminase-like small- and large-subunit genes of a bacteriophage. Increased expression of the two bla genes resulted from a 6-time tandem amplification of the element as revealed by Southern blotting. This is the first isolation of a clinical P. mirabilis strain producing OXA-58, a class D carbapenemase, and the first description of a XerC-XerD-dependent insertion of antibiotic resistance genes within a bacteriophage. This study revealed a new role for the XerC-XerD recombinase in bacteriophage biology. Copyright © 2017 American Society for Microbiology.

Tourism's impact on future transportation needs

Science.gov (United States)

2002-02-01

This report focuses on the changes evolving in the tourist industry and their impact on future transportation needs. First, the report concentrates on the changing of the demographic guard--from Baby Boomers to Generation Xers, and finally, to the en...

Making Earth Science Data Records for Use in Research Environments (MEaSUREs) Projects Data and Services at the GES DISC

Science.gov (United States)

Vollmer, Bruce E.; Ostrenga, D.; Savtchenko, A.; Johnson, J.; Wei, J.; Teng, W.; Gerasimov, I.

2011-01-01

NASA's Earth Science Program is dedicated to advancing Earth remote sensing and pioneering the scientific use of satellite measurements to improve human understanding of our home planet. Through the MEaSUREs Program, NASA is continuing its commitment to expand understanding of the Earth system using consistent data records. Emphasis is on linking together multiple data sources to form coherent time-series, and facilitating the use of extensive data in the development of comprehensive Earth system models. A primary focus of the MEaSUREs Program is the creation of Earth System Data Records (ESDRs). An ESDR is defined as a unified and coherent set of observations of a given parameter of the Earth system, which is optimized to meet specific requirements for addressing science questions. These records are critical for understanding Earth System processes; for the assessment of variability, long-term trends, and change in the Earth System; and for providing input and validation means to modeling efforts. Seven MEaSUREs projects will be archived and distributed through services at the Goddard Earth Sciences Data and Information Services Center (GES DISC).

LP DAAC MEaSUREs Project Artifact Tracking Via the NASA Earthdata Collaboration Environment

Science.gov (United States)

Bennett, S. D.

2015-12-01

The Land Processes Distributed Active Archive Center (LP DAAC) is a NASA Earth Observing System (EOS) Data and Information System (EOSDIS) DAAC that supports selected EOS Community non-standard data products such as the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Emissivity Database (GED), and also supports NASA Earth Science programs such as Making Earth System Data Records for Use in Research Environments (MEaSUREs) to contribute in providing long-term, consistent, and mature data products. As described in The LP DAAC Project Lifecycle Plan (Daucsavage, J.; Bennett, S., 2014), key elements within the Project Inception Phase fuse knowledge between NASA stakeholders, data producers, and NASA data providers. To support and deliver excellence for NASA data stewardship, and to accommodate long-tail data preservation with Community and MEaSUREs products, the LP DAAC is utilizing NASA's own Earthdata Collaboration Environment to bridge stakeholder communication divides. By leveraging a NASA supported platform, this poster describes how the Atlassian Confluence software combined with a NASA URS/Earthdata support can maintain each project's members, status, documentation, and artifact checklist. Furthermore, this solution provides a gateway for project communities to become familiar with NASA clients, as well as educating the project's NASA DAAC Scientists for NASA client distribution.

40 CFR 62.15185 - How do I make sure my continuous emission monitoring systems are operating correctly?

Science.gov (United States)

2010-07-01

... emission monitoring systems are operating correctly? 62.15185 Section 62.15185 Protection of Environment... make sure my continuous emission monitoring systems are operating correctly? (a) Conduct initial, daily, quarterly, and annual evaluations of your continuous emission monitoring systems that measure oxygen (or...

Can an inadequate cervical cytology sample in ThinPrep be converted to a satisfactory sample by processing it with a SurePath preparation?

Science.gov (United States)

Sørbye, Sveinung Wergeland; Pedersen, Mette Kristin; Ekeberg, Bente; Williams, Merete E Johansen; Sauer, Torill; Chen, Ying

2017-01-01

The Norwegian Cervical Cancer Screening Program recommends screening every 3 years for women between 25 and 69 years of age. There is a large difference in the percentage of unsatisfactory samples between laboratories that use different brands of liquid-based cytology. We wished to examine if inadequate ThinPrep samples could be satisfactory by processing them with the SurePath protocol. A total of 187 inadequate ThinPrep specimens from the Department of Clinical Pathology at University Hospital of North Norway were sent to Akershus University Hospital for conversion to SurePath medium. Ninety-one (48.7%) were processed through the automated "gynecologic" application for cervix cytology samples, and 96 (51.3%) were processed with the "nongynecological" automatic program. Out of 187 samples that had been unsatisfactory by ThinPrep, 93 (49.7%) were satisfactory after being converted to SurePath. The rate of satisfactory cytology was 36.6% and 62.5% for samples run through the "gynecology" program and "nongynecology" program, respectively. Of the 93 samples that became satisfactory after conversion from ThinPrep to SurePath, 80 (86.0%) were screened as normal while 13 samples (14.0%) were given an abnormal diagnosis, which included 5 atypical squamous cells of undetermined significance, 5 low-grade squamous intraepithelial lesion, 2 atypical glandular cells not otherwise specified, and 1 atypical squamous cells cannot exclude high-grade squamous intraepithelial lesion. A total of 2.1% (4/187) of the women got a diagnosis of cervical intraepithelial neoplasia 2 or higher at a later follow-up. Converting cytology samples from ThinPrep to SurePath processing can reduce the number of unsatisfactory samples. The samples should be run through the "nongynecology" program to ensure an adequate number of cells.

40 CFR 60.1240 - How do I make sure my continuous emission monitoring systems are operating correctly?

Science.gov (United States)

2010-07-01

... emission monitoring systems are operating correctly? 60.1240 Section 60.1240 Protection of Environment... Continuous Emission Monitoring § 60.1240 How do I make sure my continuous emission monitoring systems are operating correctly? (a) Conduct initial, daily, quarterly, and annual evaluations of your continuous...

Sulphate reduction experiment: SURE-1

International Nuclear Information System (INIS)

Pedersen, K.; Arlinger, J.; Bengtsson, A.; Edlund, J.; Eriksson, L.; Hallbeck, L.; Johansson, J.; Paeaejaervi, A.; Rabe, L.

2013-11-01

It was previously concluded that opposing gradients of sulphate and methane, observations of 16S rDNA sequences displaying great similarity to those of anaerobic methane-oxidizing Archaea, and a peak in sulphide concentration in groundwater from a depth of 250-350 m in Olkiluoto, Finland, indicated proper conditions for methane oxidation with sulphate. In the present research (SURE-1), pressure-resistant, gas-tight circulating systems were constructed to enable the investigation of attached and unattached anaerobic microbial populations from a depth of 327 m in Olkiluoto under in situ pressure (2.4 MPa), diversity, dissolved gas, and hydrochemical conditions of groundwater station ONKPVA6. Three parallel flow cell cabinets were configured to allow observation of the influence on microbial metabolic activity of 11 mM methane, 11 mM methane plus 10 mM H 2 , or 2.1 mM O 2 plus 7.9 mM N 2 (i.e., air). The concentrations of these gases and of organic acids and carbon, sulphur chemistry, pH and E h , ATP, numbers of cultivable microorganisms, and total numbers of cells and bacteriophages were subsequently recorded under batch conditions for 105 d. The system containing H 2 and methane displayed microbial reduction of 0.7 mM sulphate to sulphide, while the system containing only methane produced 0.2 mM reduced sulphate. The system containing added air became inhibited and displayed no signs of microbial activity. Added H 2 and methane induced increasing numbers of lysogenic bacteriophages per cell. It appears possible that a microbial anaerobic methane-oxidizing process coupled to acetate formation and sulphate reduction may be ongoing in aquifers at a depth of 250-350 m in Olkiluoto, but clear evidence of such an AOM process was not obtained. (orig.)

Sulphate reduction experiment: SURE-1

Energy Technology Data Exchange (ETDEWEB)

Pedersen, K.; Arlinger, J.; Bengtsson, A.; Edlund, J.; Eriksson, L.; Hallbeck, L.; Johansson, J.; Paeaejaervi, A.; Rabe, L. [Microbial Analytics Sweden AB, Moelnlycke (Sweden)

2013-11-15

It was previously concluded that opposing gradients of sulphate and methane, observations of 16S rDNA sequences displaying great similarity to those of anaerobic methane-oxidizing Archaea, and a peak in sulphide concentration in groundwater from a depth of 250-350 m in Olkiluoto, Finland, indicated proper conditions for methane oxidation with sulphate. In the present research (SURE-1), pressure-resistant, gas-tight circulating systems were constructed to enable the investigation of attached and unattached anaerobic microbial populations from a depth of 327 m in Olkiluoto under in situ pressure (2.4 MPa), diversity, dissolved gas, and hydrochemical conditions of groundwater station ONKPVA6. Three parallel flow cell cabinets were configured to allow observation of the influence on microbial metabolic activity of 11 mM methane, 11 mM methane plus 10 mM H{sub 2}, or 2.1 mM O{sub 2} plus 7.9 mM N{sub 2} (i.e., air). The concentrations of these gases and of organic acids and carbon, sulphur chemistry, pH and E{sub h}, ATP, numbers of cultivable microorganisms, and total numbers of cells and bacteriophages were subsequently recorded under batch conditions for 105 d. The system containing H{sub 2} and methane displayed microbial reduction of 0.7 mM sulphate to sulphide, while the system containing only methane produced 0.2 mM reduced sulphate. The system containing added air became inhibited and displayed no signs of microbial activity. Added H{sub 2} and methane induced increasing numbers of lysogenic bacteriophages per cell. It appears possible that a microbial anaerobic methane-oxidizing process coupled to acetate formation and sulphate reduction may be ongoing in aquifers at a depth of 250-350 m in Olkiluoto, but clear evidence of such an AOM process was not obtained. (orig.)

Cost effectiveness of endometrial ablation with the NovaSure® system versus other global ablation modalities and hysterectomy for treatment of abnormal uterine bleeding: US commercial and Medicaid payer perspectives

Directory of Open Access Journals (Sweden)

Miller JD

2015-01-01

Full Text Available Jeffrey D Miller,1 Gregory M Lenhart,1 Machaon M Bonafede,1 Cindy M Basinski,2 Andrea S Lukes,3 Kathleen A Troeger4 1Truven Health Analytics, Cambridge, MA, 2Basinski, LLC, Newburgh, IN, 3Carolina Women’s Research and Wellness Center, Durham, NC, 4Hologic, Inc, Marlborough, MA, USA Objectives: Abnormal uterine bleeding (AUB interferes with physical, emotional, and social well-being, impacting the quality of life of more than 10 million women in the USA. Hysterectomy, the most common surgical treatment of AUB, has significant morbidity, low mortality, long recovery, and high associated health care costs. Global endometrial ablation (GEA provides a surgical alternative with reduced morbidity, cost, and recovery time. The NovaSure® system utilizes unique radiofrequency impedance-based GEA technology. This study evaluated cost effectiveness of AUB treatment with NovaSure ablation versus other GEA modalities and versus hysterectomy from the US commercial and Medicaid payer perspectives. Methods: A health state transition (semi-Markov model was developed using epidemiologic, clinical, and economic data from commercial and Medicaid claims database analyses, supplemented by published literature. Three hypothetical cohorts of women receiving AUB interventions were simulated over 1-, 3-, and 5-year horizons to evaluate clinical and economic outcomes for NovaSure, other GEA modalities, and hysterectomy. Results: Model analyses show lower costs for NovaSure-treated patients than for those treated with other GEA modalities or hysterectomy over all time frames under commercial payer and Medicaid perspectives. By Year 3, cost savings versus other GEA were $930 (commercial and $3,000 (Medicaid; cost savings versus hysterectomy were $6,500 (commercial and $8,900 (Medicaid. Coinciding with a 43%–71% reduction in need for re-ablation, there were 69%–88% fewer intervention/reintervention complications for NovaSure-treated patients versus other GEA modalities

Developing positive attitudes toward geriatric nursing among Millennials and Generation Xers.

Science.gov (United States)

Heise, Barbara A; Johnsen, Vickie; Himes, Deborah; Wing, Debra

2012-01-01

Despite the increase of the older adult population, there exists a shortage of health care professionals trained to help this population remain independent as long as possible. Ageism, common among younger adults, affects the capacity building of health care for older adults. Research has indicated that increased knowledge about older adults, as well as exposure to the elderly, may alter nursing students' attitudes regarding careers in gerontological nursing. However, questions remain as to what are the most effective ways to provide gerontological content in nursing programs and enhance attitudes toward older adults.With the understanding that younger adults see a need to balance work and play, a baccalaureate nursing program provides examples of ways to accomplish this through integration of courses, simulations, positive images of aging, and learning activities that enhance empathy for both frail and healthy older adults.

Prevalence of Human Papillomavirus Infection in Unselected SurePath Samples Using the APTIMA HPV mRNA Assay

DEFF Research Database (Denmark)

Rebolj, Matejka; Preisler, Sarah; Ejegod, Ditte M

2013-01-01

The APTIMA Human Papillomavirus (HPV) Assay detects E6/E7 mRNA from 14 human papillomavirus genotypes. Horizon was a population-based split-sample study among well-screened women, with an aim to compare APTIMA, Hybrid Capture 2 (HC2), and liquid-based cytology (LBC) using SurePath samples. APTIMA...

Light in intermediate acclimatization of in vitro germinated seedlings of Dendrobium phalaenopsis Deang Suree

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José Carlos Sorgato

2015-02-01

Full Text Available The success in micropropagation of Dendrobium phalaenopsis Deang Suree is high, but when transplanted into the greenhouse, their survival is minimal. To increase survival in production in the present study it was evaluated the effect of intermediate acclimatization for 30 days in a grow room utilizing the following luminosity conditions: 1- white fluorescent light (B (18.9µmol m-2 s-1; 2- white fluorescent light + red fluorescent light (GRO-LUX(r (BV (14.85µmol m-2 s-1; 3- red fluorescent light (GRO-LUX(r (V (9.45µmol m-2 s-1 and the control plants were accommodated directly in a greenhouse (162.0µmol m-2 s-1. After this the leaves were characterized anatomically and the plants transferred to the control greenhouse. It was evaluated survival percentage and final number of roots, and calculated the relations between the final and initial values of fresh weight, number of leaves, length and diameter of the largest pseudo bulb, number of pseudo bulbs and longest root length. Only plants submitted to red light, were statistically better than the control in relation to the survival percentage and in relation to fresh weight, while the control showed a higher number of roots that plants acclimatized in this luminosity conditions. Intermediate acclimatization, using red light or red + white light, is recommended for D. phalaenopsis Deang Suree.

Patient satisfaction and amenorrhea rate after endometrial ablation by ThermaChoice III or NovaSure: a retrospective cohort study

NARCIS (Netherlands)

Muller, I.; van der Palen, Jacobus Adrianus Maria; Massop-Helmink, D.; Vos-de Bruin, R.; Sikkema, J.M.

2015-01-01

Heavy menstrual bleeding poses an important health problem, which can be managed, besides other treatments, with endometrial ablation. Nowadays, the bipolar radio frequency device (NovaSure) is the most commonly used device for endometrial ablation, followed by the thermal balloon device

Validation of the Thermo Scientific SureTect Escherichia coli O157:H7 Real-Time PCR Assay for Raw Beef and Produce Matrixes.

Science.gov (United States)

Cloke, Jonathan; Crowley, Erin; Bird, Patrick; Bastin, Ben; Flannery, Jonathan; Agin, James; Goins, David; Clark, Dorn; Radcliff, Roy; Wickstrand, Nina; Kauppinen, Mikko

2015-01-01

The Thermo Scientific™ SureTect™ Escherichia coli O157:H7 Assay is a new real-time PCR assay which has been validated through the AOAC Research Institute (RI) Performance Tested Methods(SM) program for raw beef and produce matrixes. This validation study specifically validated the assay with 375 g 1:4 and 1:5 ratios of raw ground beef and raw beef trim in comparison to the U.S. Department of Agriculture, Food Safety Inspection Service, Microbiology Laboratory Guidebook (USDS-FSIS/MLG) reference method and 25 g bagged spinach and fresh apple juice at a ratio of 1:10, in comparison to the reference method detailed in the International Organization for Standardization 16654:2001 reference method. For raw beef matrixes, the validation of both 1:4 and 1:5 allows user flexibility with the enrichment protocol, although which of these two ratios chosen by the laboratory should be based on specific test requirements. All matrixes were analyzed by Thermo Fisher Scientific, Microbiology Division, Vantaa, Finland, and Q Laboratories Inc, Cincinnati, Ohio, in the method developer study. Two of the matrixes (raw ground beef at both 1:4 and 1:5 ratios) and bagged spinach were additionally analyzed in the AOAC-RI controlled independent laboratory study, which was conducted by Marshfield Food Safety, Marshfield, Wisconsin. Using probability of detection statistical analysis, no significant difference was demonstrated by the SureTect kit in comparison to the USDA FSIS reference method for raw beef matrixes, or with the ISO reference method for matrixes of bagged spinach and apple juice. Inclusivity and exclusivity testing was conducted with 58 E. coli O157:H7 and 54 non-E. coli O157:H7 isolates, respectively, which demonstrated that the SureTect assay was able to detect all isolates of E. coli O157:H7 analyzed. In addition, all but one of the nontarget isolates were correctly interpreted as negative by the SureTect Software. The single isolate giving a positive result was an E

Military Families In Transition: Stress, Resilience, And Well-Being

Science.gov (United States)

2014-01-01

Health Martha Farnsworth Riche , PhD Farnsworth Riche Associates Trumansburg, NY Lyndon A. Riviere, PhD Research Psychologist, Military Psychiatry...like all families, are capable of becoming more resilient as they face future challenges. Sustaining and enhancing this capacity for resilience is a...The Army will also be more populated with this younger generation. How will a bunch of Generation Xers manage with a bunch of Millennials being in the

CT image biomarkers to improve patient-specific prediction of radiation-induced xerostomia and sticky saliva.

Science.gov (United States)

van Dijk, Lisanne V; Brouwer, Charlotte L; van der Schaaf, Arjen; Burgerhof, Johannes G M; Beukinga, Roelof J; Langendijk, Johannes A; Sijtsema, Nanna M; Steenbakkers, Roel J H M

2017-02-01

Current models for the prediction of late patient-rated moderate-to-severe xerostomia (XER 12m ) and sticky saliva (STIC 12m ) after radiotherapy are based on dose-volume parameters and baseline xerostomia (XER base ) or sticky saliva (STIC base ) scores. The purpose is to improve prediction of XER 12m and STIC 12m with patient-specific characteristics, based on CT image biomarkers (IBMs). Planning CT-scans and patient-rated outcome measures were prospectively collected for 249 head and neck cancer patients treated with definitive radiotherapy with or without systemic treatment. The potential IBMs represent geometric, CT intensity and textural characteristics of the parotid and submandibular glands. Lasso regularisation was used to create multivariable logistic regression models, which were internally validated by bootstrapping. The prediction of XER 12m could be improved significantly by adding the IBM "Short Run Emphasis" (SRE), which quantifies heterogeneity of parotid tissue, to a model with mean contra-lateral parotid gland dose and XER base . For STIC 12m , the IBM maximum CT intensity of the submandibular gland was selected in addition to STIC base and mean dose to submandibular glands. Prediction of XER 12m and STIC 12m was improved by including IBMs representing heterogeneity and density of the salivary glands, respectively. These IBMs could guide additional research to the patient-specific response of healthy tissue to radiation dose. Copyright © 2016 The Authors. Published by Elsevier B.V. All rights reserved.

Cervical cancer incidence after normal cytological sample in routine screening using SurePath, ThinPrep, and conventional cytology

DEFF Research Database (Denmark)

Rozemeijer, Kirsten; Naber, Steffie K; Penning, Corine

2017-01-01

of histo- and cytopathology in the Netherlands (PALGA), January 2000 to March 2013.Population Women with 5 924 474 normal screening samples (23 833 123 person years).Exposure Use of SurePath or ThinPrep versus conventional cytology as screening test.Main outcome measure 72 month cumulative incidence...

Summary of the PNL aircraft flights during the MAP3S-SURE cooperative program for summer 1978

International Nuclear Information System (INIS)

Alkezweeny, A.J.; Arbuthnot, D.R.; Busness, K.M.; Easter, R.C.; Lee, R.N.

1979-01-01

A summary of the Pacific Northwest Laboratory (PNL) aircraft flights, which were part of the Sulfur Regional (SURE) Intensive Experiment, conducted during the summer of 1978, is presented, and some preliminary measurement results are reported. The PNL DC-3 and Cessna 411 research aircraft were used on two consecutive days during the experiment to measure regional-scale pollutant problems over the Ohio Valley

Distributed Generation Using Indirect Matrix Converter in Reverse Power Mode

DEFF Research Database (Denmark)

Liu, Xiong; Chiang Loh, Poh; Wang, Peng

2013-01-01

Indirect matrix converter (IMC) is an alternative for ac/ac energy conversion, usually operated with a voltage stepped-down gain of only 0.866. For applications like distribution generation where voltage-boost functionality is required, the traditional style of operating the IMC is therefore...... not appropriate. Like most power converters, the operation of the IMC can surely be reversed to produce a boosted gain, but so far its relevant control principles have not been discussed. These challenges are now addressed in this paper with distributed generation suggested as a potential application. Simulation...

SureClick® (Darbepoetin alfa) can improve perceived satisfaction and competence for anemia treatment and increase self-administration in non-dialyzed patients with chronic kidney disease.

Science.gov (United States)

Bonafont, Xavier; Romero, Ramón; Martínez, Isabel; del Pino, María D; Gil, José M; Aranda, Pedro; Roca, Ramón; Claverol, Joana; Cucala, Mercedes

2013-01-01

SureClick® is a prefilled pen for administration of darbepoetin alfa (DA) that is ready-to-use. We explored patient satisfaction with SureClick® compared with prefilled syringes (PFS). Multicenter, prospective, 6-months, observational study in non-dialyzed patients with chronic kidney disease (CKD) treated with DA in PFS who switched to SureClick® at baseline. Main outcomes were: change in Anemia Treatment Satisfaction Questionnaire (ATSQ-S), Perceived Competence for Anemia Scale (PCAS) and self-administration rate. We enrolled 132 patients with a mean(SD) age of 71.3 (14.6) years, 57.6% women. Mean(SD) ATSQ-S scores at baseline and final records were 25.5 (7.9) and 31.6 (4.9) (on a scale from 0 to 36 maximum satisfaction-, mean change: 6.2, 95%CI: 4.6-7.8, pscale from 1 to 7 maximum competence, pperceived competence in anemia management in non-dialyzed CKD patients, and could increase the self-administration rate, thereby reducing use of health resources.

Geometric Image Biomarker Changes of the Parotid Gland Are Associated With Late Xerostomia.

Science.gov (United States)

van Dijk, Lisanne V; Brouwer, Charlotte L; van der Laan, Hans Paul; Burgerhof, Johannes G M; Langendijk, Johannes A; Steenbakkers, Roel J H M; Sijtsema, Nanna M

2017-12-01

To identify a surrogate marker for late xerostomia 12 months after radiation therapy (Xer 12m ), according to information obtained shortly after treatment. Differences in parotid gland (PG) were quantified in image biomarkers (ΔIBMs) before and 6 weeks after radiation therapy in 107 patients. By performing stepwise forward selection, ΔIBMs that were associated with Xer 12m were selected. Subsequently other variables, such as PG dose and acute xerostomia scores, were added to improve the prediction performance. All models were internally validated. Prediction of Xer 12m based on PG surface reduction (ΔPG-surface) was good (area under the receiver operating characteristic curve, 0.82). Parotid gland dose was related to ΔPG-surface (Pxerostomia scores to the ΔPG-surface improved the prediction of Xer 12m significantly, and vice versa. The final model including ΔPG-surface and acute xerostomia had outstanding performance in predicting Xer 12m early after radiation therapy (area under the receiver operating characteristic curve, 0.90). Parotid gland surface reduction was associated with late xerostomia. The early posttreatment model with ΔPG-surface and acute xerostomia scores can be considered as a surrogate marker for late xerostomia. Copyright © 2017 The Author(s). Published by Elsevier Inc. All rights reserved.

Comparison of the clinical performances of the AdvanSure HPV Screening Real-Time PCR, the Abbott Real-Time High-Risk HPV Test, and the Hybrid Capture High-Risk HPV DNA Test for Cervical Cancer Screening.

Science.gov (United States)

Chung, Hae-Sun; Hahm, Chorong; Lee, Miae

2014-09-01

The clinical performance of three human papillomavirus (HPV) DNA commercial assays for cervical cancer screening was evaluated; the AdvanSure HPV Screening Real-Time PCR (AdvanSure PCR; LG Life Sciences) that was developed recently for the detection of both high-risk and low-risk genotypes, the Abbott RealTime High-Risk HPV Test (Abbott PCR; Abbott Molecular) and the Hybrid Capture High-Risk HPV DNA test (HC2; Qiagen). The three different HPV DNA tests were compared using cytology samples obtained from 619 women who underwent routine cervical cancer screening. The gold-standard assay was histopathological confirmation of cervical intraepithelial neoplasia of grade 2 or worse. The clinical sensitivities of the AdvanSure PCR, the Abbott PCR and the HC2 for the detection of cervical intraepithelial neoplasia of grade 2 or worse were 95.5%, 95.5% and 100%, respectively, while the clinical specificities were 61.6%, 86.4% and 83.3%, respectively. There were no significant differences in the clinical sensitivities of the Abbott PCR and the AdvanSure PCR compared to the HC2. The clinical specificities of the Abbott PCR and the AdvanSure PCR for the detection of HPV types 16/18 were 97.8% and 98.5%, respectively. For cervical cancer screening, all three tests showed relatively good clinical sensitivities, but the AdvanSure PCR had lower clinical specificity than the Abbott PCR and the HC2. The AdvanSure PCR and the Abbott PCR assays have the advantage of being automated and the ability to distinguish between HPV types 16/18 and other HPV types. The two real-time PCR assays could be useful tools in HPV testing for cervical cancer screening. Copyright © 2014 Elsevier B.V. All rights reserved.

Replication termination and chromosome dimer resolution in the archaeon Sulfolobus solfataricus.

Science.gov (United States)

Duggin, Iain G; Dubarry, Nelly; Bell, Stephen D

2011-01-05

Archaea of the genus Sulfolobus have a single-circular chromosome with three replication origins. All three origins fire in every cell in every cell cycle. Thus, three pairs of replication forks converge and terminate in each replication cycle. Here, we report 2D gel analyses of the replication fork fusion zones located between origins. These indicate that replication termination involves stochastic fork collision. In bacteria, replication termination is linked to chromosome dimer resolution, a process that requires the XerC and D recombinases, FtsK and the chromosomal dif site. Sulfolobus encodes a single-Xer homologue and its deletion gave rise to cells with aberrant DNA contents and increased volumes. Identification of the chromosomal dif site that binds Xer in vivo, and biochemical characterization of Xer/dif recombination revealed that, in contrast to bacteria, dif is located outside the fork fusion zones. Therefore, it appears that replication termination and dimer resolution are temporally and spatially distinct processes in Sulfolobus.

Xenoestrogenic activity in blood of European and Inuit populations

Directory of Open Access Journals (Sweden)

Manicardi Gian-Carlo

2006-05-01

Full Text Available Abstract Background Human exposure to persistent organic pollutants (POPs is ubiquitous and found in all individuals. Studies have documented endocrine disrupting effects and impact on reproduction. The aim of the present study was to compare the level of xenoestrogenic activity in serum of groups with varying POP exposure, and to evaluate correlations to the POP biomarkers, 2,2',4,4',5,5'-hexachlorobiphenyl (CB-153 and 1,1-dichloro-2,2-bis (p-chlorophenyl-ethylene (p,p'-DDE. Methods The study included 358 men: Greenlandic Inuit's, Swedish fishermen, and Warsaw (Poland and Kharkiv (Ukraine inhabitants. Xenoestrogenicity of serum extracts alone (XER and XER competitive (XERcomp effect on 17β-estradiol induced estrogen receptor (ER transactivity were assessed in the hormone free, lipophilic serum fraction containing the POPs using the MVLN human breast cancer cell line. Results No agonistic XER activity was exhibited for Inuit serum samples, while 12 – 24% of the European samples had detectable agonistic XER activity. On the contrary, 71% of Inuit serum samples antagonized XERcomp compared to 7 – 30 % in the other regions. XER and XERcomp were not or weakly correlated to the two POP markers. XER activity of Inuit samples was negatively associated to levels of CB-153 and p,p'-DDE. For the Warsaw group a positive and negative correlation between XER and p,p'-DDE and estradiol equivalence level and CB-153 levels was found. Conclusion No strong consistent association between xenoestrogenic net activity and the two POP markers was found. The results showed that the selected POP markers alone can not predict the integrated xenoestrogenic serum activity. Correlations to the POP markers were found at the extreme edge; the Inuit's and Warsaw study groups eliciting high frequency of samples with ER antagonistic and agonistic activity, respectively. We suggest that the variation in xenoestrogenic serum activity reflects differences in POP exposure

Converging values: matures, boomers, xers, and nexters in the health care workforce.

Science.gov (United States)

Parsons, Lynn C

2002-01-01

The successful leader will try several strategies to bridge the generational gap and use the expertise of each cohort group to facilitate patient care. The energy, technoliteracy, and commitment to a balance between work and personal time by the Generation X and Nexters will complement the wisdom and nursing experience of the Mature and Baby Boomer generations. Time must be taken to understand the differences between the generations. Recognizing differences and appreciating the expertise that everyone brings to the workplace will create an environment that embraces generational diversity. Celebrating individual differences comes from taking time to learn about coworkers and will enhance a healthy work environment.

A note on the almost sure central limit theorems for the maxima of strongly dependent nonstationary Gaussian vector sequences

Directory of Open Access Journals (Sweden)

Xiang Zeng

2016-06-01

Full Text Available Abstract We prove some almost sure central limit theorems for the maxima of strongly dependent nonstationary Gaussian vector sequences under some mild conditions. The results extend the ASCLT to nonstationary Gaussian vector sequences and give substantial improvements for the weight sequence obtained by Lin et al. (Comput. Math. Appl. 62(2:635-640, 2011.

Age and Time Population Differences: Young Adults, Gen Xers, and Millennials

Science.gov (United States)

Menard, Lauren A.

2013-01-01

Age and Time disparities in young adult research populations are common because young adults are defined by varying age spans; members of Generation X and Millennial generations may both be considered young adults; study years vary, affecting populations; and qualitative methods with limited age/year samples are frequently utilized. The current…

On the almost sure convergence of weighted sums of random elements in D[0,1

Directory of Open Access Journals (Sweden)

R. L. Taylor

1981-01-01

Full Text Available Let {wn} be a sequence of positive constants and Wn=w1+…+wn where Wn→∞ and wn/Wn→∞. Let {Wn} be a sequence of independent random elements in D[0,1]. The almost sure convergence of Wn−1∑k=1nwkXk is established under certain integral conditions and growth conditions on the weights {wn}. The results are shown to be substantially stronger than the weighted sums convergence results of Taylor and Daffer (1980 and the strong laws of large numbers of Ranga Rao (1963 and Daffer and Taylor (1979.

The BD Onclarity HPV assay on SurePath collected samples meets the International Guidelines for Human Papillomavirus Test Requirements for Cervical Screening

DEFF Research Database (Denmark)

Ejegod, Ditte; Bottari, Fabio; Pedersen, Helle

2016-01-01

This study describes a validation of the BD Onclarity HPV (Onclarity) assay using the international guidelines for HPV test requirements for cervical cancer screening of women 30 years and above using Danish SurePath screening samples. The clinical specificity (0.90, 95% CI: 0.88-0.91) and sensit......This study describes a validation of the BD Onclarity HPV (Onclarity) assay using the international guidelines for HPV test requirements for cervical cancer screening of women 30 years and above using Danish SurePath screening samples. The clinical specificity (0.90, 95% CI: 0.......88-0.91) and sensitivity (0.97, 95% CI: 0.87-1.0) of the Onclarity assay were shown to be non-inferior to the reference assay (specificity 0.90, 95% CI: 0.88-0.92, sensitivity 0.98, 95% CI: 0.91-1.0). The intra-laboratory reproducibility of Onclarity was 97% with a lower confidence bound of 96% (kappa value: 0...

Comparison of conventional Papanicolaou smear and SurePath® liquid-based cytology in the Copenhagen population screening programme for cervical cancer

DEFF Research Database (Denmark)

Kirschner, Benny; Simonsen, Kåre; Junge, Jette

2006-01-01

OBJECTIVE: To compare diagnostic performance of conventional Papanicolaou smear with SurePath liquid-based cytology in a population screening programme. METHODS: A retrospective comparison was performed on data from two 18-month periods of the screening programme for cervical cancer in the munici......OBJECTIVE: To compare diagnostic performance of conventional Papanicolaou smear with SurePath liquid-based cytology in a population screening programme. METHODS: A retrospective comparison was performed on data from two 18-month periods of the screening programme for cervical cancer...... in the municipality of Copenhagen with conventional Papanicolaou technique (n = 82,116) and liquid-based cytology (n = 84,414). RESULTS: After the conversion to liquid-based cytology the percentage of unsatisfactory samples decreased from 2.3% to 0.3% (P ...-based technique. CONCLUSIONS: This study showed the number of unsatisfactory samples to be significantly reduced with the liquid-based technique. The data suggest that there is an increased detection rate of cervical precancerous lesions with liquid-based cytology, but the number of false positive tests is still...

Vpma phase variation is important for survival and persistence of Mycoplasma agalactiae in the immunocompetent host.

Directory of Open Access Journals (Sweden)

Rohini Chopra-Dewasthaly

2017-09-01

Full Text Available Despite very small genomes, mycoplasmas retain large multigene families encoding variable antigens whose exact role in pathogenesis needs to be proven. To understand their in vivo significance, we used Mycoplasma agalactiae as a model exhibiting high-frequency variations of a family of immunodominant Vpma lipoproteins via Xer1-mediated site-specific recombinations. Phase-Locked Mutants (PLMs expressing single stable Vpma products served as first breakthrough tools in mycoplasmology to study the role of such sophisticated antigenic variation systems. Comparing the general clinical features of sheep infected with a mixture of phase-invariable PLMs (PLMU and PLMY and the wild type strain, it was earlier concluded that Vpma phase variation is not necessary for infection. Conversely, the current study demonstrates the in vivo indispensability of Vpma switching as inferred from the Vpma phenotypic and genotypic analyses of reisolates obtained during sheep infection and necropsy. PLMY and PLMU stably expressing VpmaY and VpmaU, respectively, for numerous in vitro generations, switched to new Vpma phenotypes inside the sheep. Molecular genetic analysis of selected 'switchover' clones confirmed xer1 disruption and revealed complex new rearrangements like chimeras, deletions and duplications in the vpma loci that were previously unknown in type strain PG2. Another novel finding is the differential infection potential of Vpma variants, as local infection sites demonstrated an almost complete dominance of PLMY over PLMU especially during early stages of both conjunctival and intramammary co-challenge infections, indicating a comparatively better in vivo fitness of VpmaY expressors. The data suggest that Vpma antigenic variation is imperative for survival and persistence inside the immunocompetent host, and although Xer1 is necessary for causing Vpma variation in vitro, it is not a virulence factor because alternative Xer1-independent mechanisms operate in

Cervical histology after routine ThinPrep or SurePath liquid-based cytology and computer-assisted reading in Denmark

DEFF Research Database (Denmark)

Rebolj, Matejka; Rask, Johanne; van Ballegooijen, Marjolein

2015-01-01

nationwide registers, technological phases were identified by slide preparation, reading technique, and triage of borderline cytology. Trends in the detection of cervical intraepithelial neoplasia (CIN) were an indicator of the technology's relative sensitivity, and trends in false-positive tests......BACKGROUND: We compared the sensitivity and specificity of liquid-based cytology (LBC) and computer-assisted reading for SurePath/FocalPoint and ThinPrep with those of manually read conventional cytology in routine cervical screening in four Danish laboratories. METHODS: Using data from five...

25 CFR 256.22 - How can I be sure that the work that is being done on my dwelling meets minimum construction...

Science.gov (United States)

2010-04-01

... 25 Indians 1 2010-04-01 2010-04-01 false How can I be sure that the work that is being done on my dwelling meets minimum construction standards? 256.22 Section 256.22 Indians BUREAU OF INDIAN AFFAIRS... is being done on my dwelling meets minimum construction standards? (a) At various stages of...

Generating Code with Polymorphic let: A Ballad of Value Restriction, Copying and Sharing

Directory of Open Access Journals (Sweden)

Oleg Kiselyov

2017-02-01

Full Text Available Getting polymorphism and effects such as mutation to live together in the same language is a tale worth telling, under the recurring refrain of copying vs. sharing. We add new stanzas to the tale, about the ordeal to generate code with polymorphism and effects, and be sure it type-checks. Generating well-typed-by-construction polymorphic let-expressions is impossible in the Hindley-Milner type system: even the author believed that. The polymorphic-let generator turns out to exist. We present its derivation and the application for the lightweight implementation of quotation via a novel and unexpectedly simple source-to-source transformation to code-generating combinators. However, generating let-expressions with polymorphic functions demands more than even the relaxed value restriction can deliver. We need a new deal for let-polymorphism in ML. We conjecture the weaker restriction and implement it in a practically-useful code-generation library. Its formal justification is formulated as the research program.

What differences does age make? Coal mining injuries

Energy Technology Data Exchange (ETDEWEB)

Mallett, L.; Schwerha, D.J. [National Institute for Occupational Safety and Health, Pittsburgh, PA (United States). Research Laboratory

2007-02-15

The US Bureau of Labor Statistics says that in 2002 the coal mine workforce in the USA had a higher medium age than the workforce in any other sector of mining. Many older miners are part of the generation group known as Baby Boomers. The article gives figures for injuries received in underground coal mining, surface coal mining and coal preparation plant workers, analysed by age groups (Nexters, {lt}22; Generation Xers, 22-41; Baby Boomers, 42-59; Veterans, 60 and above), and also by job title. In all generation groups, more injuries were recorded in miners with less than two years experience. 4 refs., 3 tabs., 6 charts.

Procedure guide of design, construction of prototypes, calibration and sure operation of nucleonic control systems

International Nuclear Information System (INIS)

Banados Perez, H.; Griffith Martinez, J.; Desdin Garcia, L.F.; Rodriguez Cardona, R.L.; Molina, G.; Sebastian Calvo, C.

1999-01-01

This Guide was elaborated in the mark of the project RLA/8/024 ARCAL XLII 'Industrial Applications of the Tracer Technology and Nucleonic Control Systems'. Its objective is to establish the approaches for the design, the construction, the selection and the procedures for the sure operation of the Nucleonic Control Systems (NCS) in the industry. The NCS is used to control processes to high speeds, materials with extreme conditions or with noxious chemical properties, susceptible materials of being damaged by contact and packed products. In this document is defined the scope of the procedure. The SCN are classified according to: type of radiations, the mobility of the components, the degree of the beams collimation; and in function of the security. The design and construction criteria of the nuclear meters and of the systems of control nucleonic are exposed

Making sure natural gas gets to market

International Nuclear Information System (INIS)

Pleckaitis, A.

2004-01-01

The role of natural gas in power generation was discussed with reference to price implications and policy recommendations. New natural gas supply is not keeping pace with demand. Production is leveling out in traditional basins and industry investment is not adequate. In addition, energy deregulation is creating disconnects. This presentation included a map depicting the abundant natural gas reserves across North America. It was noted that at 2002 levels of domestic production, North America has approximately 80 years of natural gas. The AECO consensus wholesale natural gas price forecast is that natural gas prices in 2010 will be lower than today. The use of natural gas for power generation was outlined with reference to fuel switching, distributed generation, and central generation. It was emphasized that government, regulators and the energy industry must work together to address policy gaps and eliminate barriers to new investment. 13 figs

Cross-Cultural Investigation of Consumers’ Generations Attitudes Towards Purchase of Environmentally Friendly Products in Apparel Retail

Directory of Open Access Journals (Sweden)

Dabija Dan-Cristian

2017-12-01

Full Text Available Recent changes of the environment and in the society have altered consumers’ preferences and brought new concerns among local communities regarding environmental protection and organizations responsibility, the adoption of environmentally friendly strategies, as well as offering more sustainable products. Consumers tend to select retailers based on their focus on environmental friendly products and on various “green” strategies regarding waste disposal, package recycling, etc. This study aims to highlight Romanian and Slovak consumers’ attitudes towards purchasing of goods from retailers that strive a clear focus on environmental responsibility and environmental friendly practices in apparel, footwear and sportswear retail. By means of a quantitative research based on a questionnaire administered to consumers of international retail chains with operations in both countries, the authors highlight differences in their perceptions and attitudes for buying green apparel, footwear and sportswear. Whereas Millennials and Gen Xers consumers in Romania and Slovakia believe that international apparel, footwear and sportswear retailers are less concerned about environmentally responsible behavior and the need of selling green products, Baby Boomers are more sensitive to such aspects and carefully select retailers according to their green strategy. This research provides specific findings about attitudes of different consumers’ generations within two emerging European countries (Romania, Slovakia.

Is the environmental performance of industrialized countries converging? A 'SURE' approach to testing for convergence

International Nuclear Information System (INIS)

Camarero, Mariam; Picazo-Tadeo, Andres J.; Tamarit, Cecilio

2008-01-01

In this paper, we test for convergence in the environmental performance of a sample of OECD countries, with data ranging from 1971 to 2002. First, we use Data Envelopment Analysis (DEA) to compute two environmental performance indicators (EPIs) in the production theory framework. Second, we propose the use of a sequential multivariate approach to test for convergence in environmental performance. These tests allow us to reconcile the time series literature with the cross-sectional dimension, which is basic when testing for convergence in regional blocs. The SURE technique is used, which allows for the existence of correlations across the series without imposing a common speed of mean reversion. The empirical results show that the group of countries as a whole, as well as the majority of countries considered on an individual basis (results for some countries vary between EPIs), are catching-up with Switzerland (the benchmark country). (author)

Managing expectations: assessment of chemistry databases generated by automated extraction of chemical structures from patents.

Science.gov (United States)

Senger, Stefan; Bartek, Luca; Papadatos, George; Gaulton, Anna

2015-12-01

First public disclosure of new chemical entities often takes place in patents, which makes them an important source of information. However, with an ever increasing number of patent applications, manual processing and curation on such a large scale becomes even more challenging. An alternative approach better suited for this large corpus of documents is the automated extraction of chemical structures. A number of patent chemistry databases generated by using the latter approach are now available but little is known that can help to manage expectations when using them. This study aims to address this by comparing two such freely available sources, SureChEMBL and IBM SIIP (IBM Strategic Intellectual Property Insight Platform), with manually curated commercial databases. When looking at the percentage of chemical structures successfully extracted from a set of patents, using SciFinder as our reference, 59 and 51 % were also found in our comparison in SureChEMBL and IBM SIIP, respectively. When performing this comparison with compounds as starting point, i.e. establishing if for a list of compounds the databases provide the links between chemical structures and patents they appear in, we obtained similar results. SureChEMBL and IBM SIIP found 62 and 59 %, respectively, of the compound-patent pairs obtained from Reaxys. In our comparison of automatically generated vs. manually curated patent chemistry databases, the former successfully provided approximately 60 % of links between chemical structure and patents. It needs to be stressed that only a very limited number of patents and compound-patent pairs were used for our comparison. Nevertheless, our results will hopefully help to manage expectations of users of patent chemistry databases of this type and provide a useful framework for more studies like ours as well as guide future developments of the workflows used for the automated extraction of chemical structures from patents. The challenges we have encountered

Next generation reactor development activity at Hitachi, Ltd

International Nuclear Information System (INIS)

Yamashita, Junichi

2005-01-01

Developments of innovative nuclear systems in Japan have been highly requested to cope with uncertain future nuclear power generation and fuel cycle situation. Next generation reactor system shall be surely deployed earlier to be capable to provide with several options such as plutonium multi-recycle, intermediate storage of spent fuels, simplified reprocessing of spent fuels and separated storage of 'Pu+FP' and 'U', spent fuels storage after Pu LWR recycle and their combinations, while future reactor system will be targeted at ideal fuel recycle system of higher breeding gain and transmutation of radioactive wastes. Modified designs of the ABWR at large size and medium and small size have been investigated as well as a BWR based RMWR and a supercritical-pressure LWR to ensure safety and improve economics. Advanced fuel cycle technologies of a combination of fluoride volatility process and PUREX process with high decontamination (FLUOREX process) and a modified fluoride volatility process with low decontamination have been developed. (T. Tanaka)

Pseudo-Random Sequences Generated by a Class of One-Dimensional Smooth Map

Science.gov (United States)

Wang, Xing-Yuan; Qin, Xue; Xie, Yi-Xin

2011-08-01

We extend a class of a one-dimensional smooth map. We make sure that for each desired interval of the parameter the map's Lyapunov exponent is positive. Then we propose a novel parameter perturbation method based on the good property of the extended one-dimensional smooth map. We perturb the parameter r in each iteration by the real number xi generated by the iteration. The auto-correlation function and NIST statistical test suite are taken to illustrate the method's randomness finally. We provide an application of this method in image encryption. Experiments show that the pseudo-random sequences are suitable for this application.

SureCure{sup (R)}-A new material to reduces curing time and improve curing reproducibility of lead-acid batteries

Energy Technology Data Exchange (ETDEWEB)

Boden, David P.; Loosemore, Daniel V.; Botts, G. Dean [Hammond Lead Products Division, Hammond Group Inc., 2323 165th Street, Hammond, IN 46320 (United States)

2006-08-25

This paper introduces a technology that considerably reduces the time to cure the positive plates of lead-acid batteries. In each of several full-scale trials at automotive and industrial battery manufacturers, the simple replacement of 1wt.% of leady oxide with finely-divided tetrabasic lead sulfate (SureCure(TM) by Hammond Group Inc.) is shown to accelerate significantly the conversion of tribasic lead sulfate (3BS) to tetrabasic lead sulfate (4BS) in the curing process while improving crystal structure and reproducibility. Shorter curing times result in reduced labour and energy costs, as well as reduced fixed (curing chambers and plant footprint) and working (plate inventory) capital investment. (author)

Are you sure, Mr. Carnot?

International Nuclear Information System (INIS)

Liszka, John.

1992-01-01

The author discusses the importance and historical background of the second law of thermodynamics as applied to power generation. He considers a device called an 'adiabatic separator' as not having been envisioned by Carnot, and possibly producing a spontaneous temperature difference, thereby violating the second law; however, he does not consider that the Carnot cycle is not the sole theoretical basis of the second law, but only a didactic exemplification thereof; moreover, the device considered by the author will not work continuously without an external supply of energy

Long-Term Stability of Human Genomic and Human Papillomavirus DNA Stored in BD SurePath and Hologic PreservCyt Liquid-Based Cytology Media

Science.gov (United States)

Agreda, Patricia M.; Beitman, Gerard H.; Gutierrez, Erin C.; Harris, James M.; Koch, Kristopher R.; LaViers, William D.; Leitch, Sharon V.; Maus, Courtney E.; McMillian, Ray A.; Nussbaumer, William A.; Palmer, Marcus L. R.; Porter, Michael J.; Richart, Gregory A.; Schwab, Ryan J.

2013-01-01

We evaluated the effect of storage at 2 to 8°C on the stability of human genomic and human papillomavirus (HPV) DNA stored in BD SurePath and Hologic PreservCyt liquid-based cytology media. DNA retained the ability to be extracted and PCR amplified for more than 2.5 years in both medium types. Prior inability to detect DNA in archived specimens may have been due to failure of the extraction method to isolate DNA from fixed cells. PMID:23678069

Multigenerational Challenges: Team-Building for Positive Clinical Workforce Outcomes

Science.gov (United States)

Moore, Jill M; Everly, Marcee; Bauer, Renee

2016-05-31

Patient acuity in hospital settings continues to increase, and there is greater emphasis on patient outcomes. The current nursing workforce is comprised of four distinct generational cohorts that include veterans, baby boomers, millennials, and generation Xers. Each group has unique characteristics that add complexity to the workforce and this can add challenges to providing optimal patient care. Team building is one strategy to increase mutual understanding, communication, and respect, and thus potentially improve patient outcomes. In this article, we first briefly define generational cohorts by characteristics, and discuss differing expectations for work/life balance and potential negative outcomes. Our discussion offers team building strategies for positive outcomes, a case scenario, and concludes with resources for team building and organizational opportunities.

Pseudo-Random Sequences Generated by a Class of One-Dimensional Smooth Map

International Nuclear Information System (INIS)

Wang Xing-Yuan; Qin Xue; Xie Yi-Xin

2011-01-01

We extend a class of a one-dimensional smooth map. We make sure that for each desired interval of the parameter the map's Lyapunov exponent is positive. Then we propose a novel parameter perturbation method based on the good property of the extended one-dimensional smooth map. We perturb the parameter r in each iteration by the real number x i generated by the iteration. The auto-correlation function and NIST statistical test suite are taken to illustrate the method's randomness finally. We provide an application of this method in image encryption. Experiments show that the pseudo-random sequences are suitable for this application. (general)

Retrospective comparison of Traditional vs. LigaSure impact dissection during pancreatoduodenectomy: how to save money by using an expensive device.

Science.gov (United States)

Piccinni, Giuseppe; Pasculli, Alessandro; D'Ambrosio, Erasmina; Gurrado, Angela; Lissidini, Germana; Testini, Mario

2013-09-01

Pancreatoduodenectomy is an exceptional procedure that requires an extensive dissection of the supramesocolic region extended to the first jejunal limb. Lymphadenectomy, required for cancer, increases the dissection surface. The extensive preparation of the area is traditionally conducted with bipolar ormonopolar instruments, while clips, ligatures, and sutures are used for haemostasis. LigaSure™ vessel sealing(LSVS; Valleylab, Boulder, CO) is a technology that obtains vessel closure by using the body's own collagen and elastin to create a permanent fusion zone. This is obtained by a combination of forceps pressure and radio frequency. This effect has been improved by the introduction of the Force Triad™ (Valleylab, Boulder,CO) energy platform, controlled by TissueFect™ (Valleylab, Boulder, CO) sensing technology. With this device, the surgeon is able to fuse vessels up to 7 mm, lymphatics, tissue bundles, and pulmonary vasculature in a fast-seal cycle of almost 4 seconds. In our daily practice of open surgery we observe a rapid improvement of abdominal drainage output with a drastic reduction of protein loss. Its practical significance is, in our opinion, that we obtain a rapid recovery of normal serum protein levels with a low number of blood/plasmasac transfusions and a real improvement of anastomosis healing. Moreover, the efficacy and the speed of work of the device allow us to reduce the operating time significantly but safely. We performed a retrospective analysis of the data of 20 pancreatic resections conducted both with traditional dissection and with the Liga-Sure Impact device with Force Triad platform in order to verify whether observed data were real. Our clinical results show that the use of the LigaSure Impact device with Force Triad energy platform is really useful in open surgery to save operating time, number of postoperative days, and hemoderivate administration.

Cultivation period, lighting conditions and BAP concentrations on in vitro induction shoots of Dendrobium phalaenopsis Deang Suree

Directory of Open Access Journals (Sweden)

Yara Brito Chaim Jardim Rosa

2015-12-01

Full Text Available The technique of in vitro micropropagation allows the production of large amounts of plants. However, some aspects of the orchid’s in vitro micropropagation are still poorly studied. This study analyzed the lighting conditions, time of cultivation and BAP concentrations on in vitro budburst of Dendrobium phalaenopsis Deang Suree. Therefore, a quantitative analysis of biometric parameters of plants grown during 90 and 180 days on ½ MS medium under different lighting conditions (18.90 mol m-2 s-1, 14.85 mol m-2 s-1, 9.45 mol m-2 s-1 and concentrations of BAP (0; 0.5; 1; 1.5; 2; 2.5 e 3 mg L-1. The best results of budburst were obtained during 180 days, under white fluorescent light (18.90 mol m-2 s-1 and using 1.5±0.1 mg L-1 of BAP.

Implementation of Targeted Next Generation Sequencing in Clinical Diagnostics

DEFF Research Database (Denmark)

Larsen, Martin Jakob; Burton, Mark; Thomassen, Mads

Accurate mutation detection is essential in clinical genetic diagnostics of monogenic hereditary diseases. Targeted next generation sequencing (NGS) provides a promising and cost-effective alternative to Sanger sequencing and MLPA analysis currently used in most diagnostic laboratories. One...... of mutation positive controls previously characterized by Sanger/MLPA analysis. Agilent SureSelect Target-Enrichment kits were used for capturing a set of genes associated with hereditary breast and ovarian cancer syndrome and a compilation of genes involved in multiple rare single gene disorders......, respectively. For diagnostics, the sequencing coverage is essential, wherefore a minimum coverage of 30x per nucleotide in the coding regions was used as our primary quality criterion. For the majority of the included genes, we obtained adequate gene coverage, in which we were able to detect 100% of the known...

Hybrid Capture 2 and cobas human papillomavirus assays perform similarly on SurePath samples from women with abnormalities

DEFF Research Database (Denmark)

Fornari, D; Rebolj, M; Bjerregaard, B

2016-01-01

OBJECTIVE: In two laboratories (Departments of Pathology, Copenhagen University Hospitals of Herlev and Hvidovre), we compared cobas and Hybrid Capture 2 (HC2) human papillomavirus (HPV) assays using SurePath® samples from women with atypical squamous cells of undetermined significance (ASCUS......) at ≥30 years and women after treatment of cervical intraepithelial neoplasia (CIN). METHODS: Samples from 566 women with ASCUS and 411 women after treatment were routinely tested with HC2 and, thereafter, with cobas. Histological outcomes were retrieved from the Danish Pathology Data Base. We calculated...... the overall agreement between the assays, and compared their sensitivity and specificity for ≥CIN2. RESULTS: In women with ASCUS, HC2 and cobas testing results were similar in the two laboratories. The overall agreement was 91% (95% CI, 88-93). After CIN treatment, the overall agreement was 87% (95% CI, 82...

Dispersión polínica y éxito reproductivo de cuatro especies arbóreas de un bosque xerófito de Argentina

Directory of Open Access Journals (Sweden)

Juan Pablo Torretta

2009-06-01

Full Text Available Los "talares" del E de la provincia de Buenos Aires son bosques xerófitos costeros estructurados por pocas especies arbóreas rodeados de una matriz de suelos más bajos y húmedos. Estudiamos los parámetros reproductivos de las especies arbóreas más representativas (Celtis tala, Scutia buxifolia, Jodina rhombifolia y Schinus longifolia. La dispersión polínica fue estudiada a través de trampas para visitantes florales (dispersión biótica y utilizando recolectores gravimétricos de polen (dispersión abiótica. El éxito reproductivo (tasa de formación de frutos de las especies focales fue estudiado a través de embolsado de flores con bolsas de distintos tipos de malla. El sistema reproductivo varió entre las especies. C. tala resultó anemófila y autocompatible, S. buxifolia fue entomófila y dependiente de los visitantes florales. J. rhombifolia fue una especie entomófila, aunque la autogamia espontánea podría favorecer al aseguramiento reproductivo en caso de falta de polinizadores. Finalmente, S. longifolia podría ser una especie ambófila (polinizada por insectos y por el viento. Este sistema dual podría ser el resultado de un mecanismo de flexibilidad del sistema de polinización o una transición evolutiva.Pollen dispersion and reproductive success of four tree species of a xerophytic forest from Argentina. The "talares" in eastern Buenos Aires province, Argentina, are coastal xerophitic forests structured by few arboreal species surrounded by a lower and moister soil matrix. We studied the reproductive parameters of the most representative arboreal species (Celtis tala, Scutia buxifolia, Jodina rhombifolia,and Schinus longifolia. Pollen dispersion was studied through floral visitor traps (biotic dispersion and using gravimetric pollen collectors (abiotic dispersion. The reproductive success (fruit formation rate of the focal species was studied by enclosing flowers with different mesh bags. The reproductive system varied

The impact of liberalization on the scope of efficiency improvement in electricity-generating portfolios for the United States and Switzerland

Energy Technology Data Exchange (ETDEWEB)

Krey, B.; Zweifel, P. [Socioeconomic Institute, Zurich (Switzerland)

2008-09-15

In this study, Markowitz mean-variance portfolio theory is applied to electricity-generating technologies of the United States and Switzerland. Both an investor (focused on changes in return) and a current user (focused on return in levels) view are adopted to determine efficient frontiers of electricity generation technologies in terms of expected return and risk as of 2003. Since shocks in generation costs per kWh (the inverse of returns) are correlated, Seemingly Unrelated Regression Estimation (SURE) is used to filter out the systematic components of the covariance matrix. Results suggest that risk-averse investors and risk-neutral current users in the United States are considerably closer to their efficiency frontier than their Swiss counterparts. This may be due to earlier and more thorough deregulation of electricity markets in the United States. (orig.)

COMPARISON OF UAS-BASED PHOTOGRAMMETRY SOFTWARE FOR 3D POINT CLOUD GENERATION: A SURVEY OVER A HISTORICAL SITE

Directory of Open Access Journals (Sweden)

F. Alidoost

2017-11-01

Full Text Available Nowadays, Unmanned Aerial System (UAS-based photogrammetry offers an affordable, fast and effective approach to real-time acquisition of high resolution geospatial information and automatic 3D modelling of objects for numerous applications such as topography mapping, 3D city modelling, orthophoto generation, and cultural heritages preservation. In this paper, the capability of four different state-of-the-art software packages as 3DSurvey, Agisoft Photoscan, Pix4Dmapper Pro and SURE is examined to generate high density point cloud as well as a Digital Surface Model (DSM over a historical site. The main steps of this study are including: image acquisition, point cloud generation, and accuracy assessment. The overlapping images are first captured using a quadcopter and next are processed by different software to generate point clouds and DSMs. In order to evaluate the accuracy and quality of point clouds and DSMs, both visual and geometric assessments are carry out and the comparison results are reported.

Comparison of Uas-Based Photogrammetry Software for 3d Point Cloud Generation: a Survey Over a Historical Site

Science.gov (United States)

Alidoost, F.; Arefi, H.

2017-11-01

Nowadays, Unmanned Aerial System (UAS)-based photogrammetry offers an affordable, fast and effective approach to real-time acquisition of high resolution geospatial information and automatic 3D modelling of objects for numerous applications such as topography mapping, 3D city modelling, orthophoto generation, and cultural heritages preservation. In this paper, the capability of four different state-of-the-art software packages as 3DSurvey, Agisoft Photoscan, Pix4Dmapper Pro and SURE is examined to generate high density point cloud as well as a Digital Surface Model (DSM) over a historical site. The main steps of this study are including: image acquisition, point cloud generation, and accuracy assessment. The overlapping images are first captured using a quadcopter and next are processed by different software to generate point clouds and DSMs. In order to evaluate the accuracy and quality of point clouds and DSMs, both visual and geometric assessments are carry out and the comparison results are reported.

Xenoestrogenic activity in blood of European and Inuit populations

DEFF Research Database (Denmark)

Bonefeld-Jørgensen, Eva Cecilie; Hjelmborg, Philip Sebastian; Reinert, Line S

2006-01-01

BACKGROUND: Human exposure to persistent organic pollutants (POPs) is ubiquitous and found in all individuals. Studies have documented endocrine disrupting effects and impact on reproduction. The aim of the present study was to compare the level of xenoestrogenic activity in serum of groups......) inhabitants. Xenoestrogenicity of serum extracts alone (XER) and XER competitive (XERcomp) effect on 17beta-estradiol induced estrogen receptor (ER) transactivity were assessed in the hormone free, lipophilic serum fraction containing the POPs using the MVLN human breast cancer cell line. RESULTS...... of samples with ER antagonistic and agonistic activity, respectively. We suggest that the variation in xenoestrogenic serum activity reflects differences in POP exposure mixture, genetic factors and/or life style factors....

Clonal spread of blaOXA-72-carrying Acinetobacter baumannii sequence type 512 in Taiwan.

Science.gov (United States)

Kuo, Han-Yueh; Hsu, Po-Jui; Chen, Jiann-Yuan; Liao, Po-Cheng; Lu, Chia-Wei; Chen, Chang-Hua; Liou, Ming-Li

2016-07-01

This is the first report to show an insidious outbreak of armA- and blaOXA-72-carrying Acinetobacter baumannii sequence type 512 (ST512) at a study hospital in northern Taiwan. Multilocus sequence typing revealed that this was a ST512 clone. All of the isolates with ST512 carried a novel 12,056-bp repGR2 in combination with a repGR12-type plasmid. This plasmid, designated pAB-ML, had one copy of the blaOXA-72 gene that was flanked by XerC/XerD-like sites and conferred resistance to carbapenems. Copyright © 2016 Elsevier B.V. and International Society of Chemotherapy. All rights reserved.

Clinical outcomes for patients finished with the SureSmile™ method compared with conventional fixed orthodontic therapy

Science.gov (United States)

Alford, Timothy J.; Roberts, W. Eugene; Hartsfield, James K.; Eckert, George J.; Snyder, Ronald J.

2016-01-01

Objective Utilize American Board of Orthodontics (ABO) cast/radiographic evaluation (CRE) to compare a series of 63 consecutive patients, finished with manual wire bending (conventional) treatment, vs a subsequent series of 69 consecutive patients, finished by the same orthodontist using the SureSmile™ (SS) method. Materials and Methods Records of 132 nonextraction patients were scored by a calibrated examiner blinded to treatment mode. Age and discrepancy index (DI) between groups were compared by t-tests. A chi-square test was used to compare for differences in sex and whether the patient was treated using braces only (no orthopedic correction). Analysis of covariance tested for differences in CRE outcomes and treatment times, with sex and DI included as covariates. A logarithmic transformation of CRE outcomes and treatment times was used because their distributions were skewed. Significance was defined as P space closure; however, second-order root angulation (RA) was inferior. Conclusion SS patients were treated in less time to better CRE scores for first-order rotation (AR) and interproximal space closure (IC) but on the average, malocclusions were less complex and second order root alignment was inferior, compared with patients finished with manual wire bending. PMID:21261488

Seed rain after a fire in a xerophytic shrubland Lluvia de semillas después de un incendio en un matorral xerófilo

Directory of Open Access Journals (Sweden)

Yuriana Martínez-Orea

2012-06-01

Full Text Available Fire causes a reduction of plant cover due to the death of several structures, especially of those that are not isolated from high temperatures; such as seeds and fruits. After a disturbance the availability of diaspores is crucial for the recovery of the community. This work studied the composition and abundance of the seed rain in the xerophytic shrubland of the Pedregal de San Ángel Ecological Reserve, located at the Universidad Nacional Autónoma de México campus in Mexico City, which was affected by a surface fire. In order to understand the role of diaspores in the natural regeneration of a burned site, seed traps were placed on 2 sites, one affected by the fire and the other in an unburned location. During 1 year the dispersed seeds and fruits were collected and identified. Results showed that species richness, life forms, and dispersal syndromes were different between sites. The highest abundance and richness values were observed in the burned site. This work offers basic data on the availability of species as diaspores, information which is useful for potential restoration strategies especially in those areas under constant anthropogenic disturbances.El fuego causa la reducción de la cobertura vegetal debido a la muerte de diversas estructuras, especialmente de aquellas que no están aisladas de las altas temperaturas, tal es el caso de semillas y frutos. Dado que estas diásporas permiten la recuperación de la vegetación, resulta crucial entender su composición y abundancia sobre todo después de un disturbio. Este trabajo estudió la composición y abundancia de la lluvia de semillas en el matorral xerófilo Reserva ecológica del Pedregal de San Ángel, localizado en el campus de la Universidad Nacional Autónoma de México en la ciudad de México, el cual fue afectado por un incendio superficial. Con el fin de entender el papel de las diásporas en la regeneración natural se colocaron trampas de semillas en dos sitios, uno

Exome sequencing generates high quality data in non-target regions

Directory of Open Access Journals (Sweden)

Guo Yan

2012-05-01

Full Text Available Abstract Background Exome sequencing using next-generation sequencing technologies is a cost efficient approach to selectively sequencing coding regions of human genome for detection of disease variants. A significant amount of DNA fragments from the capture process fall outside target regions, and sequence data for positions outside target regions have been mostly ignored after alignment. Result We performed whole exome sequencing on 22 subjects using Agilent SureSelect capture reagent and 6 subjects using Illumina TrueSeq capture reagent. We also downloaded sequencing data for 6 subjects from the 1000 Genomes Project Pilot 3 study. Using these data, we examined the quality of SNPs detected outside target regions by computing consistency rate with genotypes obtained from SNP chips or the Hapmap database, transition-transversion (Ti/Tv ratio, and percentage of SNPs inside dbSNP. For all three platforms, we obtained high-quality SNPs outside target regions, and some far from target regions. In our Agilent SureSelect data, we obtained 84,049 high-quality SNPs outside target regions compared to 65,231 SNPs inside target regions (a 129% increase. For our Illumina TrueSeq data, we obtained 222,171 high-quality SNPs outside target regions compared to 95,818 SNPs inside target regions (a 232% increase. For the data from the 1000 Genomes Project, we obtained 7,139 high-quality SNPs outside target regions compared to 1,548 SNPs inside target regions (a 461% increase. Conclusions These results demonstrate that a significant amount of high quality genotypes outside target regions can be obtained from exome sequencing data. These data should not be ignored in genetic epidemiology studies.

Changes in the use practitioner-based complementary and alternative medicine over time in Canada: Cohort and period effects.

Directory of Open Access Journals (Sweden)

Mayilee Canizares

Full Text Available The use of complementary and alternative medicine (CAM is growing. However the factors contributing to changes over time and to birth cohort differences in CAM use are not well understood.We used data from 10186 participants, who were aged 20-69 years at the first cycle of data collection in the longitudinal component of the Canadian National Population Health Survey (1994/95-2010/11. We examined chiropractic and other practitioner-based CAM use with a focus on five birth cohorts: pre-World War II (born 1925-1934; World War II (born 1935-1944; older baby boomers (born 1945-1954; younger baby boomers (born 1955-1964; and Gen Xers (born 1965-1974. The survey collected data every two years on predisposing (e.g., sex, education, enabling (e.g., income, behavior-related factors (e.g., obesity, need (e.g., chronic conditions, and use of conventional care (primary care and specialists.The findings suggest that, at corresponding ages, more recent cohorts reported greater CAM (OR = 25.9, 95% CI: 20.0; 33.6 for Gen Xers vs. pre-World War and chiropractic use than their predecessors (OR = 2.2, 95% CI: 1.7; 2.8 for Gen Xers vs. pre-World War. There was also a secular trend of increasing CAM use, but not chiropractic use, over time (period effect across all ages. Factors associated with cohort differences were different for CAM and chiropractic use. Cohort differences in CAM use were partially related to a period effect of increasing CAM use over time across all ages while cohort differences in chiropractic use were related to the higher prevalence of chronic conditions among recent cohorts. The use of conventional care was positively related to greater CAM use (OR = 1.8, 95% CI: 1.6; 2.0 and chiropractic use (OR = 1.2, 95% CI: 1.1; 1.4 but did not contribute to changes over time or to cohort differences in CAM and chiropractic use.The higher CAM use over time and in recent cohorts could reflect how recent generations are approaching their healthcare needs

What causes EBRI retirement readiness ratings to vary: results from the 2014 Retirement Security Projection Model.

Science.gov (United States)

VanDerhei, Jack

2014-02-01

RETIREMENT INCOME ADEQUACY IMPROVED SLIGHTLY IN 2013: Due to the increase in financial market and housing values during 2013, the probability that Baby Boomers and Generation Xers would NOT run short of money in retirement increases between 0.5 and 1.6 percentage points, based on the Employee Benefit Research Institute (EBRI) Retirement Readiness Ratings (RRRs). ELIGIBILITY FOR PARTICIPATION IN AN EMPLOYER-SPONSORED DEFINED CONTRIBUTION PLAN REMAINS ONE OF THE MOST IMPORTANT FACTORS FOR RETIREMENT INCOME ADEQUACY: RRR values double for Gen Xers in the lowest-income quartile when comparing those with 20 or more years of future eligibility with those with no years of future eligibility, while those in the middle income quartiles experience increases in RRR values by 27.1-30.3 percentage points. FUTURE SOCIAL SECURITY BENEFITS MAKE A HUGE DIFFERENCE FOR THE RETIREMENT INCOME ADEQUACY OF SOME HOUSEHOLDS, ESPECIALLY GEN XERS IN THE LOWEST-INCOME QUARTILE: If Social Security benefits are subject to proportionate decreases beginning in 2033 (according to the values in Figure 8), the RRR values for those households will drop by more than 50 percent: from 20.9 percent to 10.3 percent. LONGEVITY RISK AND STOCHASTIC HEALTH CARE RISK ARE ASSOCIATED WITH HUGE VARIATIONS IN RETIREMENT INCOME ADEQUACY: For both of these factors, a comparison between the most "risky" quartile with the least risky quartile shows a spread of approximately 30 percentage points for the lowest income range, approximately 25 to 40 percentage points for the highest income range, and even larger spreads for those in the middle income ranges. A GREAT DEAL OF THE VARIABILITY IN RETIREMENT INCOME ADEQUACY COULD BE MITIGATED BY APPROPRIATE RISK-MANAGEMENT TECHNIQUES AT OR NEAR RETIREMENT AGE: For example, the annuitization of a portion of the defined contribution and IRA balances may substantially increase the probability of not running short of money in retirement. Moreover, a well-functioning market in long

Electricity generation with natural gas or with uranium?

International Nuclear Information System (INIS)

Villanueva M, C.

2009-10-01

The program of works and investments of electric sector that actualize each year the Federal Commission of Electricity, include to the projects of electric power generating stations that will begin its commercial operation inside the horizon of the next ten years, in order to satisfy opportunely with appropriate reservation margins the demand of power and energy in the national interconnected system that grows year to year. In spite of its inherent advantages, in the electric sector prospective 2008-2017 are not considered explicitly to the nuclear power plants, except for the small amplification of capacity of nuclear power plant of Laguna Verde, that already is executing. In this context, the objective of this work is to present and to discuss arguments to favor and against the combined cycle and nuclear technologies, to indicate the risks and disadvantages in that it incurs the electric sector when leaning on so disproportionately on the fossil fuels for the electricity generation, in particular the natural gas, deferring to an indefinite future the installation of nuclear plants whose proven technology is economic, sure, clean and reliable and it contributes decisively to the national energy security. To mitigate the harmful effects of excessive dependence on natural gas to generate electric power, was propose alternatives to the expansion program of electric sector to year 2017, which would have as benefits the decrease of the annual total cost of electric power supply for public service, the significant reduction of natural gas imports and emissions reduction of CO 2 to the atmosphere. (Author)

SurePath Specimens Versus ThinPrep Specimen Types on the COBAS 4800 Platform: High-Risk HPV Status and Cytology Correlation in an Ethnically Diverse Bronx Population.

Science.gov (United States)

Naeem, R C; Goldstein, D Y; Einstein, Mark H; Ramos Rivera, G; Schlesinger, K; Khader, S N; Suhrland, M; Fox, A S

2017-08-01

To compare the cytologic preparations of 130 cervical specimens (from women of various ethnicities at high risk for human papillomavirus [HPV] infection) using the SurePath (SP) collection system with specimens gathered using the ThinPrep (TP) system, as processed on the Cobas 4800 analyzer, to determine which collection method more accurately identifies HPV infection. In our prospective study, specimens were collected from 130 women of various ethnicities residing in or near Bronx County, NY. The SP-collected specimen was first processed for cytologic findings; if clinical HPV testing was requested on that specimen, it was tested using Hybrid Capture II (HC2) methodology. We tested the remnant SP-collected cell concentrate using the Cobas analyzer. Then, the TP-collected and SP-collected specimens were tested in the same run on that analyzer, and the results were compared. We also compared the results with the concurrent cytologic findings. The results were concordant for overall HR-HPV status in 93.8% of cases. Also, a statistically significant lower cycle threshold value was observed with Cobas testing of specimen concentrates tested via the BD SurePath Pap Test (P = .001), suggesting higher sensitivity compared with specimens tested via the ThinPrep Pap Test. Cobas 4800 HPV testing of SP-collected specimen concentrates yields comparable results to TP-collected specimen concentrates. Based on the limited data that we derived, SP collection may be a more favorable methodology than TP collection for HPV testing of individuals at high risk in our ethnically diverse, urban patient population. © American Society for Clinical Pathology, 2017. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com

Xenoestrogenic and dioxin-like activity in blood of East Greenland polar bears (Ursus maritimus)

DEFF Research Database (Denmark)

Erdmann, Simon Erik; Dietz, Rune; Sonne, Christian

2013-01-01

The aims of the project were to (i) extract the lipophilic persistent organic pollutants (POPs) from the blood of 99 East Greenland polar bears and assess the combined mixture effect on the estrogen receptor (ER) and the aryl hydrocarbon receptor (AhR) mediated transactivity; (ii) To evaluate...... whether the receptor transactivities were associated with selected POP markers, and (iii) compare the receptor transactivities in polar bears with earlier studies on Greenlandic Inuit. Lipophilic POPs were extracted using a combination of solid-phase extraction (SPE) and high performance liquid...... induced ER response. Positive correlations were found in subadult bears between XER and several POP biomarkers. XER and XERcomp correlated positively to each other. A total of 91% of the polar bear blood extracts elicited agonistic AhR transactivity. The AhR-TCDD equivalent (AhR-TEQ) median levels were...

Rcupcake: an R package for querying and analyzing biomedical data through the BD2K PIC-SURE RESTful API.

Science.gov (United States)

Gutiérrez-Sacristán, Alba; Guedj, Romain; Korodi, Gabor; Stedman, Jason; Furlong, Laura I; Patel, Chirag J; Kohane, Isaac S; Avillach, Paul

2018-04-15

In the era of big data and precision medicine, the number of databases containing clinical, environmental, self-reported and biochemical variables is increasing exponentially. Enabling the experts to focus on their research questions rather than on computational data management, access and analysis is one of the most significant challenges nowadays. We present Rcupcake, an R package that contains a variety of functions for leveraging different databases through the BD2K PIC-SURE RESTful API and facilitating its query, analysis and interpretation. The package offers a variety of analysis and visualization tools, including the study of the phenotype co-occurrence and prevalence, according to multiple layers of data, such as phenome, exposome or genome. The package is implemented in R and is available under Mozilla v2 license from GitHub (https://github.com/hms-dbmi/Rcupcake). Two reproducible case studies are also available (https://github.com/hms-dbmi/Rcupcake-case-studies/blob/master/SSCcaseStudy_v01.ipynb, https://github.com/hms-dbmi/Rcupcake-case-studies/blob/master/NHANEScaseStudy_v01.ipynb). paul_avillach@hms.harvard.edu. Supplementary data are available at Bioinformatics online.

Numerical generation and study of synthetic bainitic microstructures

International Nuclear Information System (INIS)

Osipov, N.; Gourgues-Lorenzon, A.F.; Cailletaud, G.; Diard, O.; Marini, B.

2006-01-01

Models classically used to describe the probability of brittle fracture in nuclear power plants are written on the macroscopic scale. Its is not easy to surely capture the physical phenomena in such a type of approach, so that the application of the models far from their identification domain (temperature history, loading path) may become questionable. To improve the quality of the prediction of resistance and life time, microstructural information, describing the heterogeneous character of the material and its deformation mechanisms has to be taken into consideration. This paper is devoted to 16MND5 bainitic steel. Bainitic packets grow in former austenitic grains, and are not randomly oriented. Knowing the macroscopic stress is thus not sufficient to describe the stress-strain state in ferrite. An accurate model must take into account the actual microstructure, in order to provide realistic local stress and strain fields, to be used as inputs of a new class of cleavage models based on the local behavior. The paper shows the approach used to generate a synthetic microstructure and demonstrates that the resulting morphologies present a quantitative agreement with the experimental images. (authors)

Child oral health concerns amongst parents and primary care givers in a Sure Start local programme.

Science.gov (United States)

Daly, B; Clarke, W; McEvoy, W; Periam, K; Zoitopoulos, L

2010-09-01

To conduct an oral health promotion needs assessment amongst parents and primary care givers of pre-school children in a South East London Sure Start Local Programme (SSLP). To explore the oral health concerns and oral health literacy with regard to children's oral health amongst parents and primary care givers in a South East London SSLP. A qualitative study using four in-depth focus groups with a purposive sample of 20 participants. Data were analysed using the framework method. The SSLP was identified as an important source of information, support and social interaction for participants. Participants rated the informal networks of the programme as equally authoritative as other formal sources of information. Oral health concerns included: introducing healthy eating, establishing tooth brushing, teething and access to dental care. While participants had adequate knowledge of how to prevent oral disease they cited many barriers to acting on their knowledge which included: parents' tiredness, lack of confidence in parenting skills, confusing information, widespread availability of sugary foods and drinks, and lack of local child friendly dentists. Parenting skills and the social support provided by the SSLP appeared to be integral to the introduction of positive oral health behaviours. SSLPs were seen as a trusted source of support and information for carers of pre-school children. Integration of oral health promotion into SSLPs has the potential to tap into early interventions which tackle the wider support needs of carers of pre-school children while also supporting the development of positive oral health behaviours.

Xenoestrogenic and dioxin-like activity in blood of East Greenland polar bears (Ursus maritimus).

Science.gov (United States)

Erdmann, Simon E; Dietz, Rune; Sonne, Christian; Bechshøft, Thea Ø; Vorkamp, Katrin; Letcher, Robert J; Long, Manhai; Bonefeld-Jørgensen, Eva C

2013-07-01

The aims of the project were to (i) extract the lipophilic persistent organic pollutants (POPs) from the blood of 99 East Greenland polar bears and assess the combined mixture effect on the estrogen receptor (ER) and the aryl hydrocarbon receptor (AhR) mediated transactivity; (ii) To evaluate whether the receptor transactivities were associated with selected POP markers, and (iii) compare the receptor transactivities in polar bears with earlier studies on Greenlandic Inuit. Lipophilic POPs were extracted using a combination of solid-phase extraction (SPE) and high performance liquid chromatography (HPLC). ER mediated transactivity was determined using the ER luciferase reporter MVLN cell assay. The extracts were tested alone (XER) and together with 17β-estradiol (E2) as a physiological mimic (XERcomp). Dioxins and dioxin-like (DL) compounds were extracted by a combination of SPE and the Supelco Dioxin Prep System®. AhR mediated dioxin-like transactivity was determined using the AhR luciferase reporter Hepa 1.12cR cell assay. Agonistic ER transactivity was elicited by 19% of the samples, and a further increased E2 induced ER response was found for 52%, whereas 17% antagonized the E2 induced ER response. Positive correlations were found in subadult bears between XER and several POP biomarkers. XER and XERcomp correlated positively to each other. A total of 91% of the polar bear blood extracts elicited agonistic AhR transactivity. The AhR-TCDD equivalent (AhR-TEQ) median levels were higher among adult bears compared to subadult bears, but not significantly. Copyright © 2013 Elsevier Ltd. All rights reserved.

Experimental and numerical study of impact of voltage fluctuate, flicker and power factor wave electric generator to local distribution

Science.gov (United States)

Hadi, Nik Azran Ab; Rashid, Wan Norhisyam Abd; Hashim, Nik Mohd Zarifie; Mohamad, Najmiah Radiah; Kadmin, Ahmad Fauzan

2017-10-01

Electricity is the most powerful energy source in the world. Engineer and technologist combined and cooperated to invent a new low-cost technology and free carbon emission where the carbon emission issue is a major concern now due to global warming. Renewable energy sources such as hydro, wind and wave are becoming widespread to reduce the carbon emissions, on the other hand, this effort needs several novel methods, techniques and technologies compared to coal-based power. Power quality of renewable sources needs in depth research and endless study to improve renewable energy technologies. The aim of this project is to investigate the impact of renewable electric generator on its local distribution system. The power farm was designed to connect to the local distribution system and it will be investigated and analyzed to make sure that energy which is supplied to customer is clean. The MATLAB tools are used to simulate the overall analysis. At the end of the project, a summary of identifying various voltage fluctuates data sources is presented in terms of voltage flicker. A suggestion of the analysis impact of wave power generation on its local distribution is also presented for the development of wave generator farms.

CT image biomarkers to improve patient-specific prediction of radiation-induced xerostomia and sticky saliva

NARCIS (Netherlands)

van Dijk, Lisanne V.; Brouwer, Charlotte L.; van der Schaaf, Arjen; Burgerhof, Johannes G. M.; Beukinga, Roelof J.; Langendijk, Johannes A.; Sijtsema, Nanna M.; Steenbakkers, Roel J. H. M.

Background and purpose: Current models for the prediction of late patient-rated moderate-to-severe xerostomia (XER12m) and sticky saliva (STIC12m) after radiotherapy are based on dose-volume parameters and baseline xerostomia (XERbase) or sticky saliva (STICbase) scores. The purpose is to improve

Nuclear position in power generation sector - under the pressure of anti-global warming and power market reform

International Nuclear Information System (INIS)

Hayashi, Taizo

2005-01-01

privately organized and also, structure of power companies to private companies if they are publicly organized one. For it is very difficult or almost impossible to maintain nuclear power plant by private electricity company, which require longer lead time and substantial initial investment cost. And also, nuclear power plant operation requires, I understand, opening relevant information to the public. This is not necessarily ''the must'' from historical viewpoint, because nuclear usage originated from military use but desirable future. Therefore, people will gradually require opening up information with their political democratization. Here is another political difficulty surrounding nuclear power generation, besides economic rationale. Or, in other word, this PA (or public acceptance) problem is surely one of the main obstacles, which developed countries faced or has been facing. And this process will be that for present LDCs, which will surely meet sooner or later when they choose nuclear power as a major power supply source within their power generation mixture. (Author)

Report on results of contract research. 'Research on MHD generation system'; MHD hatsuden system no kenkyu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1983-03-01

'Research on MHD generation system' was implemented by its expert committee in the electric joint study group, with the results of fiscal 1982 reported. This year is the final year of this research; therefore, reexamination was made from the practical standpoint on the R and D of coal fired MHD generation, evaluating the present technological level as well as clarifying the development procedures, with proposals made as to the R and D from now on. The present technological level in the practicability is still in the basic stage, where the essential problem is the development of combustors, air heaters and generation channels in particular. An examination was conducted for the problems, procedures and period of the development for each component equipment, with the results provided as materials for studying the path to the experimental plant of 100 MW heat input. In the method of proceeding with the R and D in the future, it was decided as essential, in order to enter the stage of the experimental plant from the element technology development, that R and D is carried out on the unestablished component technology, making sure that no excessive risk is taken in scaling up to the next stage. (NEDO)

Contract Management Process and Mentorship Analysis of United States Special Operations Command’s (USSOCOM) Special Operations Acquisition and Logistics Directorate of Procurement (SOAL-K)

Science.gov (United States)

2009-12-01

classroom instruction and by reading printed text and remain comfortable with both. They are verbally adept.  Gen X-ers (born 1965-1979)—Adapt easily to...11. Peer Assist 12. Podcasts 13. Retrospect (team meeting held after an event) 14. Storytelling (water-cooler conversation) 15. Wikis (web

Design of nuclear power generation plants adopting model engineering method

International Nuclear Information System (INIS)

Waki, Masato

1983-01-01

The utilization of model engineering as the method of design has begun about ten years ago in nuclear power generation plants. By this method, the result of design can be confirmed three-dimensionally before actual production, and it is the quick and sure method to meet the various needs in design promptly. The adoption of models aims mainly at the improvement of the quality of design since the high safety is required for nuclear power plants in spite of the complex structure. The layout of nuclear power plants and piping design require the model engineering to arrange rationally enormous quantity of things in a limited period. As the method of model engineering, there are the use of check models and of design models, and recently, the latter method has been mainly taken. The procedure of manufacturing models and engineering is explained. After model engineering has been completed, the model information must be expressed in drawings, and the automation of this process has been attempted by various methods. The computer processing of design is in progress, and its role is explained (CAD system). (Kako, I.)

NTCP models for patient-rated xerostomia and sticky saliva after treatment with intensity modulated radiotherapy for head and neck cancer: The role of dosimetric and clinical factors

International Nuclear Information System (INIS)

Beetz, Ivo; Schilstra, Cornelis; Schaaf, Arjen van der; Heuvel, Edwin R. van den; Doornaert, Patricia; Luijk, Peter van; Vissink, Arjan; Laan, Bernard F.A.M. van der; Leemans, Charles R.; Bijl, Henk P.; Christianen, Miranda E.M.C.; Steenbakkers, Roel J.H.M.; Langendijk, Johannes A.

2012-01-01

Purpose: The purpose of this multicentre prospective study was to develop multivariable logistic regression models to make valid predictions about the risk of moderate-to-severe patient-rated xerostomia (XER M6 ) and sticky saliva 6 months (STIC M6 ) after primary treatment with intensity modulated radiotherapy (IMRT) with or without chemotherapy for head and neck cancer (HNC). Methods and materials: The study population was composed of 178 consecutive HNC patients treated with IMRT. All patients were included in a standard follow up programme in which acute and late side effects and quality of life were prospectively assessed, prior to, during and after treatment. The primary endpoints were XER M6 and STIC M6 as assessed by the EORTC QLQ-H and N35 after completing IMRT. Organs at risk (OARs) potentially involved in salivary function were delineated on planning-CT, including the parotid, submandibular and sublingual glands and the minor glands in the soft palate, cheeks and lips. Patients with moderate-to-severe xerostomia or sticky saliva, respectively, at baseline were excluded. The optimal number of variables for a multivariate logistic regression model was determined using a bootstrapping method. Results: Eventually, 51.6% of the cases suffered from XER M6 . The multivariate analysis showed that the mean contralateral parotid gland dose and baseline xerostomia (none vs. a bit) were the most important predictors for XER M6 . For the multivariate NTCP model, the area under the receiver operating curve (AUC) was 0.68 (95% CI 0.60–0.76) and the discrimination slope was 0.10, respectively. Calibration was good with a calibration slope of 1.0. At 6 months after IMRT, 35.6% of the cases reported STIC M6 . The mean contralateral submandibular gland dose, the mean sublingual dose and the mean dose to the minor salivary glands located in the soft palate were most predictive for STIC M6 . For this model, the AUC was 0.70 (95% CI 0.61–0.78) and the discrimination slope

Baltisk inflytande växer starkt / Hans Norrbom

Index Scriptorium Estoniae

Norrbom, Hans

2004-01-01

Põhjamaade Ministrite Nõukogu peasekretäri Per Unckelѫi arvates kasvab Baltimaade mõju riikide vahelises koostöös pidevalt. Tema arvates võivad Põhja-Euroopas peagi tekkida uued poliitilised koostööorganisatsioonid, kus Balti riigid osalevad võrdväärsete partneritena

Fixation effect of SurePath preservative fluids using epidermal growth factor receptor mutation-specific antibodies for immunocytochemistry.

Science.gov (United States)

Kawahara, Akihiko; Taira, Tomoki; Abe, Hideyuki; Watari, Kosuke; Murakami, Yuichi; Fukumitsu, Chihiro; Takase, Yorihiko; Yamaguchi, Tomohiko; Azuma, Koichi; Akiba, Jun; Ono, Mayumi; Kage, Masayoshi

2014-02-01

Cytological diagnosis of respiratory disease has become important, not only for histological typing using immunocytochemistry (ICC) but also for molecular DNA analysis of cytological material. The aim of this study was to investigate the fixation effect of SurePath preservative fluids. Human lung cancer PC9 and 11-18 cell lines, and lung adenocarcinoma cells in pleural effusion, were fixed in CytoRich Blue, CytoRich Red, 15% neutral-buffered formalin, and 95% ethanol, respectively. PC9 and 11-18 cell lines were examined by ICC with epidermal growth factor receptor (EGFR) mutation-specific antibodies, the EGFR mutation DNA assay, and fluorescence in situ hybridization. The effect of antigenic storage time was investigated in lung adenocarcinoma cells in pleural effusion by ICC using the lung cancer detection markers. PC9 and 11-18 cell lines in formalin-based fixatives showed strong staining of EGFR mutation-specific antibodies and lung cancer detection markers by ICC as compared with ethanol-based fixatives. DNA preservation with CytoRich Blue and CytoRich Red was superior to that achieved with 95% ethanol and 15% neutral-buffered formalin fixatives, whereas EGFR mutations by DNA assay and EGFR gene amplification by fluorescence in situ hybridization were successfully identified in all fixative samples. Although cytoplasmic antigens maintained high expression levels, expression levels in nuclear antigens fell as storage time increased. These results indicate that CytoRich Red is not only suitable for ICC with EGFR mutation-specific antibodies, but also for DNA analysis of cytological material, and is useful in molecular testing of lung cancer, for which various types of analyses will be needed in future. © 2013 American Cancer Society.

Filtering Photogrammetric Point Clouds Using Standard LIDAR Filters Towards DTM Generation

Science.gov (United States)

Zhang, Z.; Gerke, M.; Vosselman, G.; Yang, M. Y.

2018-05-01

Digital Terrain Models (DTMs) can be generated from point clouds acquired by laser scanning or photogrammetric dense matching. During the last two decades, much effort has been paid to developing robust filtering algorithms for the airborne laser scanning (ALS) data. With the point cloud quality from dense image matching (DIM) getting better and better, the research question that arises is whether those standard Lidar filters can be used to filter photogrammetric point clouds as well. Experiments are implemented to filter two dense matching point clouds with different noise levels. Results show that the standard Lidar filter is robust to random noise. However, artefacts and blunders in the DIM points often appear due to low contrast or poor texture in the images. Filtering will be erroneous in these locations. Filtering the DIM points pre-processed by a ranking filter will bring higher Type II error (i.e. non-ground points actually labelled as ground points) but much lower Type I error (i.e. bare ground points labelled as non-ground points). Finally, the potential DTM accuracy that can be achieved by DIM points is evaluated. Two DIM point clouds derived by Pix4Dmapper and SURE are compared. On grassland dense matching generates points higher than the true terrain surface, which will result in incorrectly elevated DTMs. The application of the ranking filter leads to a reduced bias in the DTM height, but a slightly increased noise level.

Bismuth oxide based ceramics with improved electrical and mechanical properties: Part II. Structural and mechanical properties

NARCIS (Netherlands)

Kruidhof, H.; Seshan, Kulathuiyer; van de Velde, G.M.H.; de Vries, K.J.; Burggraaf, A.J.

1988-01-01

Coprecipitation as a method of preparation for bismuth oxides based ceramics yields relatively strong and machineable materials in comparison with the solid state reaction. Compositions within the system (1−x)Bi2O3|xEr2O3 containing up to twenty five mole percent of erbium oxide show a slow

Designing Production Based Learning as a Basic Strategy for Creating Income Generating Units at Universitas Pendidikan Indonesia

Science.gov (United States)

Suryadi, D.; Supriatna, N.

2018-02-01

The establishment of Universitas Pendidikan Indonesia (later to be referred as UPI) Statute as a State-Owned State University (PTN-BH) has implications for UPI requirements. One of them is the need for UPI to generate an Income Generating Unit (IGU) of at least IDR 100 Billion (one hundred billion rupiah). This requirement is considered difficult since UPI is one of the universities whose focus is on the world of education and not the business and industry. Surely this becomes the thinking of the entire academic community to make a breakthrough by optimizing their potential. This study aims to find the pattern of learning practice that produces economic value products as one indicator of IGU value achievement as an effort to support UPI as PTN-BH. Learning strategy is done by designing and implementing the production base learning (PBL) approach as the basis strategy for the development of production units capable of becoming IGU in UPI. The research method used refers to research and development methods with adjustments taking into account the effectiveness in validating and conducting field model trials. The result of this research is the basic design of PBL model as the development strategy of production unit in the achievement of IGU UPI PTN-BH.

Sure I'm sure : Prefrontal oscillations support metacognitive monitoring of decision-making

NARCIS (Netherlands)

Wokke, M.E.; Cleeremans, A.; Ridderinkhof, K.R.

2017-01-01

Successful decision-making critically involves metacognitive processes such as monitoring and control of our decision process. Metacognition enables agents to adaptively modify on-going behavior and to determine what to do next in situations where external feedback is not (immediately) available.

Advanced Soldier Thermoelectric Power System for Power Generation from Battlefield Heat Sources

Science.gov (United States)

2010-09-01

Figure 6.10 TE Module with Microtherm Added Around & Between Legs ............................................................... 57  Figure 6.11 Short... Microtherm ® insulation, 2.6 (W) of heater power was required to maintain a temperature of 400 ºC. This is an indication of the losses in the system...side of the module to the cold plate.  Pour in Microtherm to insulate the module.  Make sure to clean all insulation from the hot side electrodes

End-Stage Renal Disease Outcomes among the Kaiser Permanente Southern California Creatinine Safety Program (Creatinine SureNet): Opportunities to Reflect and Improve.

Science.gov (United States)

Sim, John J; Batech, Michael; Danforth, Kim N; Rutkowski, Mark P; Jacobsen, Steven J; Kanter, Michael H

2017-01-01

The Kaiser Permanente Southern California (KPSC) creatinine safety program (Creatinine SureNet) identifies and outreaches to thousands of people annually who may have had a missed diagnosis for chronic kidney disease (CKD). We sought to determine the value of this outpatient program and evaluate opportunities for improvement. Longitudinal cohort study (February 2010 through December 2015) of KPSC members captured into the creatinine safety program who were characterized using demographics, laboratory results, and different estimations of glomerular filtration rate. Age- and sex-adjusted rates of end-stage renal disease (ESRD) were compared with those in the overall KPSC population. Among 12,394 individuals, 83 (0.7%) reached ESRD. The age- and sex-adjusted relative risk of ESRD was 2.7 times higher compared with the KPSC general population during the same period (94.7 vs 35.4 per 100,000 person-years; p creatinine measurements, only 13% had a urine study performed (32% among patients with confirmed CKD). Our study found a higher incidence of ESRD among individuals captured into the KPSC creatinine safety program. If the Chronic Kidney Disease Epidemiology Collaboration equation were used, fewer people would have been captured while improving the accuracy for diagnosing CKD. Urine testing was low even among patients with confirmed CKD. Our findings demonstrate the importance of a creatinine safety net program in an integrated health system but also suggest opportunities to improve CKD care and screening.

Procedure guide of design, construction of prototypes, calibration and sure operation of nucleonic control systems; Guia de procedimientos de diseno, construccion de prototipos, calibracion y operacion segura de sistemas de control nucleonico

Energy Technology Data Exchange (ETDEWEB)

Banados Perez, H [Instituto de Pesquizas Energia Nuclear, Sao Paulo (Brazil); Griffith Martinez, J [Instituto de Investigaciones de la Cana de Azucar, La Habana (Cuba); Desdin Garcia, L F [Centro de Estudios Aplicados al Desarrollo Nuclear, La Habana (Cuba); Rodriguez Cardona, R L [Agencia de Energia Nuclear, La Habana (Cuba); Molina, G [Instituto de Investigaciones Nucleares, Mexico City (Mexico); Sebastian Calvo, C [Instituto Peruano de Energia Nuclear, Lima (Peru)

1999-09-24

This Guide was elaborated in the mark of the project RLA/8/024 ARCAL XLII 'Industrial Applications of the Tracer Technology and Nucleonic Control Systems'. Its objective is to establish the approaches for the design, the construction, the selection and the procedures for the sure operation of the Nucleonic Control Systems (NCS) in the industry. The NCS is used to control processes to high speeds, materials with extreme conditions or with noxious chemical properties, susceptible materials of being damaged by contact and packed products. In this document is defined the scope of the procedure. The SCN are classified according to: type of radiations, the mobility of the components, the degree of the beams collimation; and in function of the security. The design and construction criteria of the nuclear meters and of the systems of control nucleonic are exposed.

Contribution of different Erbium sublattices in magnetic ordering of the reentrant superconductor [Snsub(1-x)Ersub(x)]Er4Rh6Sn18

International Nuclear Information System (INIS)

Hodeau, J.L.; Marezio, M.; Pannetier, J.; Benoit, A.

1984-01-01

The compound [Sn(1)sub(1-x)Er(1)sub(x)]Er(2) 4 Rh 6 Sn 18 with x = 1/3 is a reentrant superconductor; it belongs to a series of compounds whose formula is MRhsub(x)Snsub(y), M = rare earth. We have determined by X-ray diffraction the structure of these compounds and we have also studied the magnetic ordering by neutron diffraction of the reentrant superconductor [fr

Legalisering som lösning? Erfarenheter av holländsk eutanasipraxis

NARCIS (Netherlands)

Boer, Th.A.

2002-01-01

Fastän vi lever i ett Europa som växer samman, så fortsätter dock många gränser att bestå. Vissa skillnader förblir eller har i de förgångna årtiondena till och med blivit djupare. Dödshjälpsdebatterna i Holland och Skandinavien ger oss ett exempel. Två stater med till stor del lika kultur, men

Safety concerns and hidden agenda behind HPV vaccines: another generation of drug-dependent society?

Science.gov (United States)

Khatami, Mahin

2016-12-01

Analyses of data and hidden agenda behind repeated failed outcomes of cancer research and therapy, status of American health, safety concerns for HPV vaccines and future research considerations are summarized in this commentary. A closer look at cancer science reveals that highly power structure (system) in medical establishment vs. anti-system and chaos in cancer research ('medical/scientific ponzi schemes') is potent recipe for failed therapeutics that kills patients but generates huge corporate profit. American health status ranks last among other developed nations despite the highest amount that USA invests in healthcare. This is a wake-up call to make sure that the evil part of human being does not prevent the health services that the public deserves. Otherwise, 'it does not matter how many resources you have, if you don't know, or don't want to know, how to use them, they will never be enough'. Answer to cancer and improved public health is possible only by switching the current corruptive and abusive culture of 'who you know' to a culture of 'what you know'. Policy makers and professionals in decision making roles are urged to return to common sense and logics that our Forefathers used to serve the public.

Self generation, small generation, and embedded generation issues

International Nuclear Information System (INIS)

2001-01-01

The New Brunswick Market Design Committee for electric power restructuring has been directed to examine issues regarding cogeneration and small-scale, on-site generation and how they will fit within the framework of the bilateral contract market. The Committee will also have to deal with issues of generation embedded in a distribution system. The Committee has defined cogeneration as the simultaneous production of electricity and useful thermal energy. Self-generation has been defined as small-scale power generation by an end-user, while embedded generation has been defined as a generation facility that is located within a distribution utility but is not directly connected to the transmission system. The Committee has postponed its decision on whether embedded generation will be eligible to participate under the bilateral contract market for electricity. This report discusses general issues such as the physical support of generation, market support of generation, transition issues and policy issues. It also discusses generation support issues such as operating reserves, transmission tariff issues, and distribution tariffs. Market support issues such as transmission access for generation sales were also considered, along with market access for generation sales, and net metering for behind the meter generation. 7 refs., 1 tab

Differentiating between endocervical glandular neoplasia and high grade squamous intraepithelial lesions in endocervical crypts: cytological features in ThinPrep and SurePath cervical cytology samples.

Science.gov (United States)

Thiryayi, Sakinah A; Marshall, Janet; Rana, Durgesh N

2009-05-01

A recent audit at our institution revealed a higher number of cases diagnosed as endocervical glandular neoplasia on ThinPrep (TP) cervical cytology samples (9 cases) as opposed to SurePath (SP) (1 case), which on histology showed only high-grade cervical intraepithelial neoplasia (CIN) with endocervical crypt involvement (CI). We attempted to ascertain the reasons for this finding by reviewing the available slides of these cases, as well as slides of cases diagnosed as glandular neoplasia on cytology and histology; cases diagnosed as high-grade squamous intraepithelial lesions (HSIL) on cytology which had CIN with CI on histology and cases with mixed glandular and squamous abnormalities diagnosed both cytologically and histologically. Single neoplastic glandular cells and short pseudostratified strips were more prevalent in SP than TP with the cell clusters in glandular neoplasia 3-4 cells thick, in contrast to the dense crowded centre of cell groups in HSIL with CI. The cells at the periphery of groups can be misleading. Cases with HSIL and glandular neoplasia have a combination of the features of each entity in isolation. The diagnosis of glandular neoplasia remains challenging and conversion from conventional to liquid based cervical cytology requires a period of learning and adaptation, which can be facilitated by local audit and review of the cytology slides in cases with a cytology-histology mismatch. (c) 2009 Wiley-Liss, Inc.

Super long-term scenario of world nuclear power generation and uranium supply and demand until 2030 and further 2100

International Nuclear Information System (INIS)

Komiyama, Ryoichi; Kakinoki, Tatsuro

2007-01-01

Based on latest nuclear policy and development trend in each country in the world, quantity of nuclear power generation and the uranium supply and demand until 2030 and further 2100 were predicted. As a result, the introduction of nuclear power stations spreads around Asia until 2030. The limitation on the uranium resources clearly does not exist until 2030, but a development period of around 10 years is necessary for exploitation of uranium resources. If timely development investment does not advance, it may invite shortage of uranium supply and promote a remarkable rise of uranium supply price. If the reinforcement of the anti-global warming measure and the diversification of the energy source advance at the super long-term time span called 2100, the world coal power largely decreases and the introduction of the nuclear power enlarges steadily. Introduction of the light water reactor (LWR) extends until 2080 since the fuel uses uranium resources of about 70 year ratio of reserves to production, but quantity of LWR power stations and power generation changes for the decrease due to the limitation of uranium resources after it. On the other hand, sustained expansion of the plutonium utilization by the fuel cycle technology and the introduction of the fast breeder reactor (FBR) advance after 2050. Then the sustained expansion of nuclear power is surely expected to occupy the first share of power generation in 2100. On this account it is necessary to push forward the plutonium use, backend technology and FBR development globally, and Japan is expected to carry a positive role to lead international nuclear energy technology development as a nuclear energy developed nation. (T. Tanaka)

National Renewable Energy Laboratory program on lightning risk and wind turbine generator protection

Energy Technology Data Exchange (ETDEWEB)

Muljadi, E. [National Renewable Energy Lab., Golden, CO (United States); McNiff, B. [McNiff Light Industry, Blue Hill, ME (United States)

1997-12-31

In the early development of wind turbine generators (WTG) in the United States, wind farms were primarily located in California where lightning activity is the lowest in the United States. As such, lightning protection for wind turbines was not considered to be a major issue for designers or wind farm operators. However, wind turbine installations are expanding into the Midwest, Southwest and other regions of the United States where lightning activity is significantly more intense and lightning damage to wind turbines is more common. There is a growing need, therefore, to better understand lightning activity on wind farms and to improve wind turbine lightning protection systems. In support of the U.S. Department of Energy/Electric Power Research Institute (DOE/EPRI) Utility Wind Turbine Verification Program (TVP), the National Renewable Energy Laboratory (NREL) has recently begun to take steps to determine the extent of damage due to lightning and the effectiveness of various lightning protection techniques for wind power plants. Working through the TVP program, NREL will also perform outreach and education to (1) help manufacturers to provide equipment that is adequately designed to survive lightning, (2) make sure that operators are aware of effective safety procedures, and (3) help site designers and wind farm developers take the risk of lightning into account as effectively as possible.

Software Assessment of the Global Force Management (GFM) Search Capability Study

Science.gov (United States)

2017-02-01

MOS Capability Vector Work 3 3.3 Schema and Database Work Breakdown 4 3.3.1 Overall Generation 4 3.3.2 Algorithm Descriptions 5 3.3.3 Java API...battalion for example) and makes sure the results have a known name (not ‘%NKN’). 3.3.3 Java API Description Generation API call: GenerateAll.run...Database Login Username databaseUsername=root #Database Login Password databasePassword= mysql #Application Database Name appDatabaseName=Simple_GFM

Demand management in steam generation?; Administracion de la demanda en la generacion de vapor?

Energy Technology Data Exchange (ETDEWEB)

Plauchu L., A.; Plauchu A., J. A. [Ingenieros consultores (Mexico)

1997-12-31

Energy management has acquired capital importance in all the branches of the industrial activity and services either private o public and it has been, from years behind, more familiar the technology for the demand control in the electric power distribution systems, with excellent results in the energy conservation and economy. The rate of consumption for the different forms of energy shows the prevalence of the thermal energy in a variety of end uses. Not much or almost nothing has been said of the term Demand Management or Control in Steam Generation although 12% of the total energy supply is used for this purpose. Steam demand management and control can avoid unnecessary investments that bring along the increment of operational and maintenance problems and it is for sure that it will always give raise to a more rational and economical utilization of the real capacity of steam generation. A real case is commented. [Espanol] La administracion de la energia ha cobrado importancia capital en todos los giros de actividad industrial y de servicios, privados y publicos y es de varios anos atras cada vez mas familiar la tecnologia en el control de demanda en los sistemas de distribucion de energia electrica, con magnificos resultados en el ahorro, energetico y economico. La relacion de consumos para las diferentes formas de energia muestra el predominio de la energia termica en una variedad de usos finales. Poco o nada oimos del termino Administracion o Control de Demanda en la Generacion de Vapor aun cuando el 12% de la oferta total de energia tiene como destino esta aplicacion. La administracion y control de la demanda de vapor puede evitar inversiones innecesarias e incremento de problemas de operacion y mantenimiento y con seguridad reportaran siempre una utilizacion mas racional y economica de la capacidad real de generacion de vapor, se comenta un caso real.

Demand management in steam generation?; Administracion de la demanda en la generacion de vapor?

Energy Technology Data Exchange (ETDEWEB)

Plauchu L, A; Plauchu A, J A [Ingenieros consultores (Mexico)

1998-12-31

Energy management has acquired capital importance in all the branches of the industrial activity and services either private o public and it has been, from years behind, more familiar the technology for the demand control in the electric power distribution systems, with excellent results in the energy conservation and economy. The rate of consumption for the different forms of energy shows the prevalence of the thermal energy in a variety of end uses. Not much or almost nothing has been said of the term Demand Management or Control in Steam Generation although 12% of the total energy supply is used for this purpose. Steam demand management and control can avoid unnecessary investments that bring along the increment of operational and maintenance problems and it is for sure that it will always give raise to a more rational and economical utilization of the real capacity of steam generation. A real case is commented. [Espanol] La administracion de la energia ha cobrado importancia capital en todos los giros de actividad industrial y de servicios, privados y publicos y es de varios anos atras cada vez mas familiar la tecnologia en el control de demanda en los sistemas de distribucion de energia electrica, con magnificos resultados en el ahorro, energetico y economico. La relacion de consumos para las diferentes formas de energia muestra el predominio de la energia termica en una variedad de usos finales. Poco o nada oimos del termino Administracion o Control de Demanda en la Generacion de Vapor aun cuando el 12% de la oferta total de energia tiene como destino esta aplicacion. La administracion y control de la demanda de vapor puede evitar inversiones innecesarias e incremento de problemas de operacion y mantenimiento y con seguridad reportaran siempre una utilizacion mas racional y economica de la capacidad real de generacion de vapor, se comenta un caso real.

Pious Entertainment: Hizbullah's Islamic Cultural Sphere

NARCIS (Netherlands)

Alagha, J.E.; Nieuwkerk, K. van

2011-01-01

Alagha’s chapter on Hezbollah’s Islamic cultural sphere is sure to generate some of the most interesting discussion. Lebanon and Hezbollah in particular are among the hottest topics in the studies of contemporary Islam, but few people actually have the appropriate levels of both access to and

Magnet Free Generators - 3rd Generation Wind Turbine Generators

DEFF Research Database (Denmark)

Jensen, Bogi Bech; Mijatovic, Nenad; Henriksen, Matthew Lee

2013-01-01

This paper presents an introduction to superconducting wind turbine generators, which are often referred to as 3rd generation wind turbine generators. Advantages and challenges of superconducting generators are presented with particular focus on possible weight and efficiency improvements. A comp...

A highly efficient method for generation of therapeutic quality human pluripotent stem cells by using naive induced pluripotent stem cells nucleus for nuclear transfer.

Science.gov (United States)

Sanal, Madhusudana Girija

2014-01-01

Even after several years since the discovery of human embryonic stem cells and induced pluripotent stem cells (iPSC), we are still unable to make any significant therapeutic benefits out of them such as cell therapy or generation of organs for transplantation. Recent success in somatic cell nuclear transfer (SCNT) made it possible to generate diploid embryonic stem cells, which opens up the way to make high-quality pluripotent stem cells. However, the process is highly inefficient and hence expensive compared to the generation of iPSC. Even with the latest SCNT technology, we are not sure whether one can make therapeutic quality pluripotent stem cell from any patient's somatic cells or by using oocytes from any donor. Combining iPSC technology with SCNT, that is, by using the nucleus of the candidate somatic cell which got reprogrammed to pluripotent state instead that of the unmodified nucleus of the candidate somatic cell, would boost the efficiency of the technique, and we would be able to generate therapeutic quality pluripotent stem cells. Induced pluripotent stem cell nuclear transfer (iPSCNT) combines the efficiency of iPSC generation with the speed and natural reprogramming environment of SCNT. The new technique may be called iPSCNT. This technique could prove to have very revolutionary benefits for humankind. This could be useful in generating organs for transplantation for patients and for reproductive cloning, especially for childless men and women who cannot have children by any other techniques. When combined with advanced gene editing techniques (such as CRISPR-Cas system) this technique might also prove useful to those who want to have healthy children but suffer from inherited diseases. The current code of ethics may be against reproductive cloning. However, this will change with time as it happened with most of the revolutionary scientific breakthroughs. After all, it is the right of every human to have healthy offspring and it is the question of

A highly efficient method for generation of therapeutic quality human pluripotent stem cells by using naive induced pluripotent stem cells nucleus for nuclear transfer

Directory of Open Access Journals (Sweden)

Madhusudana Girija Sanal

2014-09-01

Full Text Available Even after several years since the discovery of human embryonic stem cells and induced pluripotent stem cells (iPSC, we are still unable to make any significant therapeutic benefits out of them such as cell therapy or generation of organs for transplantation. Recent success in somatic cell nuclear transfer (SCNT made it possible to generate diploid embryonic stem cells, which opens up the way to make high-quality pluripotent stem cells. However, the process is highly inefficient and hence expensive compared to the generation of iPSC. Even with the latest SCNT technology, we are not sure whether one can make therapeutic quality pluripotent stem cell from any patient’s somatic cells or by using oocytes from any donor. Combining iPSC technology with SCNT, that is, by using the nucleus of the candidate somatic cell which got reprogrammed to pluripotent state instead that of the unmodified nucleus of the candidate somatic cell, would boost the efficiency of the technique, and we would be able to generate therapeutic quality pluripotent stem cells. Induced pluripotent stem cell nuclear transfer (iPSCNT combines the efficiency of iPSC generation with the speed and natural reprogramming environment of SCNT. The new technique may be called iPSCNT. This technique could prove to have very revolutionary benefits for humankind. This could be useful in generating organs for transplantation for patients and for reproductive cloning, especially for childless men and women who cannot have children by any other techniques. When combined with advanced gene editing techniques (such as CRISPR-Cas system this technique might also prove useful to those who want to have healthy children but suffer from inherited diseases. The current code of ethics may be against reproductive cloning. However, this will change with time as it happened with most of the revolutionary scientific breakthroughs. After all, it is the right of every human to have healthy offspring and it is

LigaSure Impact™ versus conventional dissection technique in pylorus-preserving pancreatoduodenectomy in clinical suspicion of cancerous tumours on the head of the pancreas: study protocol for a randomised controlled trial

Directory of Open Access Journals (Sweden)

Müller-Stich Beat P

2011-06-01

Full Text Available Abstract Background The pp-Whipple procedure requires extensive preparation. The conventional preparation technique is done with scissors for dissection and ligatures, and with clips and sutures for hemostasis. This procedure is very time-consuming and requires numerous changes of instruments. The LigaSure™ device allows dissection and hemostasis for preparation with one instrument. Up to now there has been no comparison of the two techniques with regard to operating time and the patients' outcome. It is still unclear which technique has the optimal benefit/risk ratio for the patient. Methods/Design A single-center, randomized, single-blinded, controlled superiority trial to compare two different techniques for dissection in a pp-Whipple procedure. 102 patients will be included and randomized pre-operatively. All patients aged 18 years or older scheduled for primary elective pp-Whipple procedure who signed the informed consent will be included. The primary endpoint is the operating time of the randomized technique. Control Intervention: Conventional dissection technique; experimental intervention: LigaSureTM dissection technique. Duration of study: Approximately 15 months; follow up time: 3 years. The trial is registered at German ClinicalTrials Register (DRKS00000166.

Nuclear Energy In Switzerland: It's going ahead. Challenges For The Swiss Nuclear Society Young Generation Group

International Nuclear Information System (INIS)

Streit, Marco; Bichsel, Thomas; Fassbender, Andre; Horvath, Matthias

2008-01-01

Swiss energy policy is focused on generating domestic electric power without combusting fossil fuels for already four decades. Roughly 60% of the electricity is generated in hydroelectric plants, which is possible due to the country's favourable topography; the remaining 40% are produced by the country's five nuclear power plants (NPPs). As in any other country nuclear power has its enemies in Switzerland. Due to the direct democracy system in Switzerland the nuclear opposition has a lot of possibilities to disturb the energy policy. Since 1969, when the first Swiss nuclear power plant went online, four plebiscites were held on the issue of civil use of nuclear energy. Four times Swiss citizens voted in favour of further operation of the existing plants also in the latest battle for nuclear energy, which was won in 2003. In 2005 and 2006 several Swiss studies about the future energy situation, especially the electricity situation, have been published. All off them show clearly that there will be a big gab around the year 2020 when the oldest three nuclear power plants will fade out. A public debate was started, how to solve the problem. Beside others, building new nuclear power plants was mentioned and discussed rationally. In 2007 the energy police of the Swiss government changed into a more nuclear friendly position and at the end of the same year some electricity companies lunched a new build program. Hosting the International Youth Nuclear Congress 2008 (IYNC 2008) in Switzerland seems to be just the right moment for the nuclear industry in our country. The slightly changed surroundings effected the organization of Swiss Nuclear Society (SNS) and SNS Young Generation Group (SNSYG) and enlarged the fields of activities for SNSYG. Those activities mentioned in the previous chapters will be developed in the future. The discussion about new builds in Switzerland has started and because of that more nuclear activities in Switzerland will occur. And surely there will

Military Service Members and Veterans: In the Classroom and on the Police Force

Science.gov (United States)

Olson, Dustin; Gabriel-Olson, Kirsten

2012-01-01

With the troop levels in Iraq decreasing and more service members being discharged, the number of veterans on campuses is steadily increasing. On average, these warriors-turning-college-students will be 24 or older, ethnic minorities, and first-generation college students. It is important to make sure that departments, campuses and communities are…

"Shut up and Calculate": The Available Discursive Positions in Quantum Physics Courses

Science.gov (United States)

Johansson, Anders; Andersson, Staffan; Salminen-Karlsson, Minna; Elmgren, Maja

2018-01-01

Educating new generations of physicists is often seen as a matter of attracting good students, teaching them physics and making sure that they stay at the university. Sometimes, questions are also raised about what could be done to increase diversity in recruitment. Using a discursive perspective, in this study of three introductory quantum…

El género Capparis en Colombia

Directory of Open Access Journals (Sweden)

Dugand Armando

1941-06-01

Full Text Available Las plantas del género Capparis L., familia Capparidaceæ -a la que pertenece el alcaparro común originario del mediodía de Europa y del Oriente, cuyos botones florales se emplean macerados en vinagre como condimento aperitivo- forman un elemento importante y conspicuo de Ia asociación vegetal xerófila en el Iitoral Caribe de Colombia y, aunque en menor proporción, en todas las demás regiones áridas del país.

Prevalência das injúrias orofaciais e uso de protetores bucais em uma população de atletas que praticam futebol e jiu-jitsu

OpenAIRE

Rafaela Amarante de Andrade Vieira

2013-01-01

Este estudo epidemiológico teve por objetivo investigar a prevalência de injúria orofacial em dois grupos de atletas. O primeiro grupo foi de atletas integrantes do Fluminense Futebol Clube, em Xerém, e o segundo de atletas praticantes do jiu-jitsu em diferentes academias ou que participaram do Campeonato Brasileiro em 2011, no Rio de Janeiro. Um examinador calibrado, auxiliado por um assistente, preencheu os questionários com todos os atletas, seguido do exame clínico de todos. Grupo I: 260 ...

PMJ panel discussion overview on mask complexities, cost, and cycle time in 32-nm system LSI generation: conflict or concurrent?

Science.gov (United States)

Hosono, Kunihiro; Kato, Kokoro

2008-10-01

This is a report on a panel discussion organized in Photomask Japan 2008, where the challenges about "Mask Complexities, Cost, and Cycle Time in 32-nm System LSI Generation" were addressed to have a look over the possible solutions from the standpoints of chipmaker, commercial mask shop, DA tool vendor and equipments makers. The wrap-up is as follows: Mask complexities justify the mask cost, while the acceptable increase rate of 32nm-mask cost significantly differs between mask suppliers or users side. The efficiency progress by new tools or DFM has driven their cycle-time reductions. Mask complexities and cost will be crucial issues prior to cycle time, and there seems to be linear correlation between them. Controlling complexity and cycle time requires developing a mix of advanced technologies, and especially for cost reduction, shot prices in writers and processing rates in inspection tools have been improved remarkably by tool makers. In addition, activities of consortium in Japan (Mask D2I) are expected to enhance the total optimization of mask design, writing and inspection. The cycle-time reduction potentially drives the lowering of mask cost, and, on the other, the pattern complexities and tighter mask specifications get in the way to 32nm generation as well as the nano-economics and market challenges. There are still many difficult problems in mask manufacturing now, and we are sure to go ahead to overcome a 32nm hurdle with the advances of technologies and collaborations by not only technologies but also finance.

Design, fabrication, and characterization of a solenoid system to ...

Indian Academy of Sciences (India)

system to generate magnetic field for an ECR proton source. S K JAIN .... The bore of the solenoid coils was fabricated using high voltage glass epoxy. Each ... sure drop and flow, the inlet and outlet connections were provided. ... stability of an ECR plasma source, as any small change in the distribution of the axial magnetic.

Proceedings – Mathematical Sciences | Indian Academy of Sciences

Indian Academy of Sciences (India)

The notion of ergodicity of a measure preserving group of automorphisms of the probability space , is used to prove the almost sure independence of the Arveson spectrum S p ( T ( ) ) of T t ( ) . As a consequence, for any family of ( T ( ) , ) -KMS states {ρ()}, the spectrum of the generator of the group of unitaries ...

External validation of three dimensional conformal radiotherapy based NTCP models for patient-rated xerostomia and sticky saliva among patients treated with intensity modulated radiotherapy

International Nuclear Information System (INIS)

Beetz, Ivo; Schilstra, Cornelis; Luijk, Peter van; Christianen, Miranda E.M.C.; Doornaert, Patricia; Bijl, Henk P.; Chouvalova, Olga; Heuvel, Edwin R. van den; Steenbakkers, Roel J.H.M.; Langendijk, Johannes A.

2012-01-01

Purpose: The purpose of this study was to investigate the ability of predictive models for patient-rated xerostomia (XER 6M ) and sticky saliva (STIC 6M ) at 6 months after completion of primary (chemo)radiation developed in head and neck cancer patients treated with 3D-conformal radiotherapy (3D-CRT) to predict outcome in patients treated with intensity modulated radiotherapy (IMRT). Methods and materials: Recently, we published the results of a prospective study on predictive models for patient-rated xerostomia and sticky saliva in head and neck cancer patients treated with 3D-CRT (3D-CRT based NTCP models). The 3D-CRT based model for XER 6M consisted of three factors, including the mean parotid dose, age, and baseline xerostomia (none versus a bit). The 3D-CRT based model for STIC 6M consisted of the mean submandibular dose, age, the mean sublingual dose, and baseline sticky saliva (none versus a bit). In the current study, a population consisting of 162 patients treated with IMRT was used to test the external validity of these 3D-CRT based models. External validity was described by the explained variation (R 2 Nagelkerke) and the Brier score. The discriminative abilities of the models were calculated using the area under the receiver operating curve (AUC) and calibration (i.e. the agreement between predicted and observed outcome) was assessed with the Hosmer–Lemeshow “goodness-of-fit” test. Results: Overall model performance of the 3D-CRT based predictive models for XER 6M and STIC 6M was significantly worse in terms of the Brier score and R 2 Nagelkerke among patients treated with IMRT. Moreover the AUC for both 3D-CRT based models in the IMRT treated patients were markedly lower. The Hosmer–Lemeshow test showed a significant disagreement for both models between predicted risk and observed outcome. Conclusion: 3D-CRT based models for patient-rated xerostomia and sticky saliva among head and neck cancer patients treated with primary radiotherapy or

Financing Waste to Wealth Project-Malaysian Experience

International Nuclear Information System (INIS)

Abdul Nasir Adnan

2010-01-01

In Malaysia, waste were coming from industrial waste, residential waste and others. So, all of these wastes were dumped into landfill and some was treated back for several purposes. All these efforts will need more money to make sure it proceeds. So, this presentation focused on how we can generate back our money from these waste. According to statistics, more than 95 % waste will go to landfills and only 5 % was recycled. 47 % were organic waste, 15 % paper, 14 % plastics, 4 % metal and only 3 % were glass or ceramics with 291 open dumpsites all over the country. So, with the establishment of RRC/ RDF-WTE, all of these wastes were managed systematically. The establishment of waste RDF plants to generate electricity also can give opportunities to government as alternative ways from depending on fossil fuel plants. Although there are several challenges such as market failure, absence of legal framework, lack of institutional measures and others, these will not break the spirit to make sure that someday all of these efforts will meet their targets.

Crecimiento y supervivencia de plántulas de cinco especies de Acacia (Fabaceae, que coexisten en bosques secos neotropicales de Argentina, en distintas condiciones de disponibilidad de luz y agua

Directory of Open Access Journals (Sweden)

Paula Venier

2013-06-01

Full Text Available El establecimiento de la plántula es una de las etapas más riesgosas para las plantas, especialmente en zonas áridas y semiáridas donde la sequía y alta radiación solar influyen sobre su emergencia, desarrollo y supervivencia. Se evaluó en invernadero la supervivencia y variables de crecimiento en plántulas sometidas a estrés hídrico y a distintas condiciones de luz, en cinco especies de Acacia (A. aroma, A. caven, A. atramentaria, A. gilliesii y A. praecox que coexisten en los bosques xerófilos de Córdoba, Argentina. Aunque se encontraron diferencias entre las especies (F=5.66, p=0.001, todas tuvieron altos porcentajes de supervivencia en las distintas condiciones de luz y agua, sugiriendo que serían tolerantes al estrés hídrico y podrían establecerse bajo luz o sombra. Si bien todas las especies mejoraron el crecimiento con luz y sin estrés hídrico, A. aroma, A. caven y A. atramentaria mostraron una tendencia hacia un mayor crecimiento en la mayoría de las variables consideradas (F=41.9, p<0.0001; F=7.06, p<0.0001; F=53.59, p<0.0001. Estos resultados sumados a otros ya reportados indicarían una diferenciación de nichos regenerativos favoreciendo la coexistencia regional de estas especies en los bosques xerófilos de Córdoba.

Monomer-dimer control of the ColE1 P(cer) promoter.

Science.gov (United States)

Chatwin, H M; Summers, D K

2001-11-01

XerCD-mediated recombination at cer converts multimers of plasmid ColE1 to monomers, maximizing the number of independently segregating molecules and minimizing the frequency of plasmid loss. In addition to XerCD, recombination requires the accessory factors ArgR and PepA. The promoter P(cer), located centrally within cer, is also required for stable plasmid maintenance. P(cer) is active in plasmid multimers and directs transcription of a short RNA, Rcd, which appears to inhibit cell division. It has been proposed that Rcd is part of a checkpoint which ensures that multimer resolution is complete before the cell divides. This study has shown that ArgR does not act as a transcriptional repressor of P(cer) in plasmid monomers. P(cer) is unusual in that the -35 and -10 hexamers are separated by only 15 bp and this study has demonstrated that increasing this to a more conventional spacing results in elevated activity. An increase to 17 bp resulted in a 10- to 20-fold increase in activity, while smaller effects were seen when the spacer was increased to 16 bp or 18 bp. These observations are consistent with the hypothesis that P(cer) activation involves realignment of the -35 and -10 sequences within a recombinational synaptic complex. This predicts that a 17 bp spacer promoter derivative should be down-regulated by plasmid multimerization, and this is confirmed experimentally.

Commanding Generation Y: How Generation X Military Leaders Can Better Utilize Generational Tendencies

Science.gov (United States)

2013-03-21

generation ( Baby Boomers ). Although the profession of arms is a time-honored tradition steeped in discipline...senior leadership generational tendencies. Command; Leadership; Generation ; Baby Boomer ; Generation X; Generation Y Unclass Unclass Unclass UU 32 USMC...enable commanders to better lead Generation Y within the U.S. military. Discussion: Baby Boomers , Generation X, and Generation Y are

A Simple, Inexpensive Pollen Trap

Science.gov (United States)

P. E. Hoekstra

1965-01-01

Pollen plays a role of vital importance in the sexual reproduction of all plants but it is especially important in forestry. With few exceptions, sexual reproduction is the only link between succeeding generations in the forest. To be sure, vegetative reproduction is important for special purposes, but it will probably not be used on a mass scale in timber...

Nuclear Energy In Switzerland: It's going ahead. Challenges For The Swiss Nuclear Society Young Generation Group

Energy Technology Data Exchange (ETDEWEB)

Streit, Marco [Aare-Tessin Ltd for Electricity, Bahnhofquai 12, CH-4601 Olten (Switzerland); Bichsel, Thomas [BKW FMB Energie AG, NPP Muehleberg, CH-3203 Muehleberg (Switzerland); Fassbender, Andre [NPP Goesgen-Daeniken AG, CH-4658 Daeniken (Switzerland); Horvath, Matthias [National Emergency Operations Centre, CH-8044 Zurich (Switzerland)

2008-07-01

Swiss energy policy is focused on generating domestic electric power without combusting fossil fuels for already four decades. Roughly 60% of the electricity is generated in hydroelectric plants, which is possible due to the country's favourable topography; the remaining 40% are produced by the country's five nuclear power plants (NPPs). As in any other country nuclear power has its enemies in Switzerland. Due to the direct democracy system in Switzerland the nuclear opposition has a lot of possibilities to disturb the energy policy. Since 1969, when the first Swiss nuclear power plant went online, four plebiscites were held on the issue of civil use of nuclear energy. Four times Swiss citizens voted in favour of further operation of the existing plants also in the latest battle for nuclear energy, which was won in 2003. In 2005 and 2006 several Swiss studies about the future energy situation, especially the electricity situation, have been published. All off them show clearly that there will be a big gab around the year 2020 when the oldest three nuclear power plants will fade out. A public debate was started, how to solve the problem. Beside others, building new nuclear power plants was mentioned and discussed rationally. In 2007 the energy police of the Swiss government changed into a more nuclear friendly position and at the end of the same year some electricity companies lunched a new build program. Hosting the International Youth Nuclear Congress 2008 (IYNC 2008) in Switzerland seems to be just the right moment for the nuclear industry in our country. The slightly changed surroundings effected the organization of Swiss Nuclear Society (SNS) and SNS Young Generation Group (SNSYG) and enlarged the fields of activities for SNSYG. Those activities mentioned in the previous chapters will be developed in the future. The discussion about new builds in Switzerland has started and because of that more nuclear activities in Switzerland will occur. And surely

Motivation beroende på anställningsform? : En fallstudie om motivationsrelaterade skillnader mellan fast anställda och inhyrda medarbetare på ett bank- och försäkringsföretag

OpenAIRE

Sundqvist Swahn, Sofia; Emthén, Niklas; Persson, Katarina

2011-01-01

Bemanningsbranschen växer och allt fler personer blir anställda via bemanningsföretag. Bemanningsföretagens viktigaste uppgift är att öka flexibiliteten på arbetsmarknaden. De gör det lättare för företagen att snabbt anpassa arbetsstyrkan till efterfrågan. Samtidigt finns problem och risker med att hyra in personal. Flertalet studier kring dessa problem tangerar ämnena motivation och/eller inhyrda medarbetare, men forskningen är begränsad vad gäller inhyrda medarbetares motivation. Under anta...

La transformación de los medios forestales en el Norte de Argentina. Implicaciones sociales y ambientales.

OpenAIRE

Cuadra, Dante Edin

2016-01-01

En el Norte de Argentina se encuentran las mayores extensiones de bosques nativos del país. Se trata de un ámbito subtropical con marcadas variaciones pluviométricas, resultantes de la dinámica atmosférica, los tipos y disposiciones del relieve y la distancia al mar, factores que han posibilitado el desarrollo de formaciones vegetales diferenciadas como las selvas de riberas y mesetas en el Este, los bosques húmedos y xerófilos en el centro y las selvas serranas en el Oeste. Las primeras ...

Manual for the ELL (2) - parser generator and tree generator generator

OpenAIRE

Heckmann, Reinhold

1986-01-01

Regular right part grammars extended by tree generator specifications are interpreted by a combined parser generator and tree generator that produces an ELL(2) parser. This parser is able to translate programs of the specified language into abstract syntax trees according to the tree specifications in the generator input.

Evaluation of an easy, standardized and clinically practical method (SurePrep) for the preparation of electrode–skin contact in neurophysiological recordings

International Nuclear Information System (INIS)

Stjerna, Susanna; Mäki, Jarmo; Vanhatalo, Sampsa; Alatalo, Päivi

2010-01-01

The aim of this study was to assess the practicality, reliability and safety of a recently introduced method of skin preparation for EEG recordings. We compared the traditional skin abrasion (SA) method to a method called SurePrep (SP), which creates tiny incisions through the upper epithelial layers. The study comprised three parts. In part 1, forearm recordings (n = 400; ten healthy volunteers) were conducted to examine acute and late (24 h) impedances, skin reactions, as well as the effects on electrode movement artefacts. In part 2, the effect of repeated (up to nine) SP sticks on impedances was examined on the forearm skin in two subjects (n = 99). In part 3, preparation speed and skin impedances were measured from preparation of a standard EEG cap in four subjects (n = 74). Immediately after preparation, skin impedances were a little lower (n.s.) after SA, but the variability in impedances was significantly less after SP (p < 0.01). After one day, there was no mean impedance difference but a greater proportion of SP sites were >10 kΩ. The frequency of immediate skin irritations (93.5%) was much higher after SA compared to 42.5% after SP, but there was no clinically significant difference observed after one day. The SP method exposed interstitial fluid in 5% of cases, while SA caused a wound-like lesion in 4.5% of the sites. No macroscopic blood was observed in any case (n = 400). Three sticks with the SP device produced clinically sufficient (<10 kΩ) impedances in 85% of the cases, and a total of five to six sticks secured a sufficient skin contact in all skin sites examined (n = 99). Preparation of skin contacts in the EEG cap was faster by SP compared to SA in all four study subjects. Our results demonstrate that skin contacts of sufficient quality can be reliably, easily and quickly prepared by the SP method. SP is a useful alternative for EEG recordings in general, although SA may provide the slightly better preserved skin contacts needed for long

Comparison and evaluation of two exome capture kits and sequencing platforms for variant calling.

Science.gov (United States)

Zhang, Guoqiang; Wang, Jianfeng; Yang, Jin; Li, Wenjie; Deng, Yutian; Li, Jing; Huang, Jun; Hu, Songnian; Zhang, Bing

2015-08-05

To promote the clinical application of next-generation sequencing, it is important to obtain accurate and consistent variants of target genomic regions at low cost. Ion Proton, the latest updated semiconductor-based sequencing instrument from Life Technologies, is designed to provide investigators with an inexpensive platform for human whole exome sequencing that achieves a rapid turnaround time. However, few studies have comprehensively compared and evaluated the accuracy of variant calling between Ion Proton and Illumina sequencing platforms such as HiSeq 2000, which is the most popular sequencing platform for the human genome. The Ion Proton sequencer combined with the Ion TargetSeq Exome Enrichment Kit together make up TargetSeq-Proton, whereas SureSelect-Hiseq is based on the Agilent SureSelect Human All Exon v4 Kit and the HiSeq 2000 sequencer. Here, we sequenced exonic DNA from four human blood samples using both TargetSeq-Proton and SureSelect-HiSeq. We then called variants in the exonic regions that overlapped between the two exome capture kits (33.6 Mb). The rates of shared variant loci called by two sequencing platforms were from 68.0 to 75.3% in four samples, whereas the concordance of co-detected variant loci reached 99%. Sanger sequencing validation revealed that the validated rate of concordant single nucleotide polymorphisms (SNPs) (91.5%) was higher than the SNPs specific to TargetSeq-Proton (60.0%) or specific to SureSelect-HiSeq (88.3%). With regard to 1-bp small insertions and deletions (InDels), the Sanger sequencing validated rates of concordant variants (100.0%) and SureSelect-HiSeq-specific (89.6%) were higher than those of TargetSeq-Proton-specific (15.8%). In the sequencing of exonic regions, a combination of using of two sequencing strategies (SureSelect-HiSeq and TargetSeq-Proton) increased the variant calling specificity for concordant variant loci and the sensitivity for variant loci called by any one platform. However, for the

The next 20 years: how customer and workforce attitudes will evolve.

Science.gov (United States)

Howe, Neil; Strauss, William

2007-01-01

Business projects with very long time horizons--such as those involving product R&D, workplace design, and total compensation planning--have to contend with a crucial question: What will be the needs, demands, and desires of consumers and employees decades from now? If you think the answer is "Just more of the same," you're in for a surprise. Howe and Strauss, the authors of Generations, The Fourth Turning, Millennials Rising, and other books, have studied the differences among generations for some 30 years. Their extensive research has revealed a fascinating pattern--one so strong that it supports a measure of predictability. On the basis of historical precedent, they say, we can foresee how the generations that are alive today will think and act in decades to come. Three of those generations will still be vital forces in American society 20 years from now: Boomers, Generation X, and Millennials. Their attitudes and behaviors will have profound effects on the economy, the workplace, and social institutions in general. For example, as aging Boomers eschew high-tech medicine in favor of holistic self-care, natural foods, and mind-body healing techniques, some hospitals are opening new wings featuring alternative medicine and spiritual counseling. Gen Xers, having grown up in an era of failing schools and marriages, will remain alienated, disaffected, and pragmatic as they enter midlife. Already the greatest entrepreneurial generation in U.S. history, they will be highly effective at pushing innovation, efficiency, and mass customization. In contrast, young adult Millennials will favor teamwork, close family relationships, job security, and a bland popular culture. Their unprecedented digital empowerment and talent for organizing will create a political powerhouse and may even revitalize the union movement.

Comparing Generative and Inter-generative Subjectivity in Post-Revolutionary Academic Generations in Iran

Directory of Open Access Journals (Sweden)

mehran Sohrabzadeh

2010-01-01

Full Text Available Comparative study of different post-revolutionary generation has been broadly applied by social scientists; among them some believe there is a gulf between generations, while some others endorsing some small differences among generations, emphasis that this variety is natural. Avoiding being loyal to any of these two views, the present study attempts to compare three different post-revolutionary academic generations using theory of “generative objects” which explores generations’ view about their behaviors, Beliefs, and historical monuments. Sampling was carried among 3 generations; firstly ones who were student in 60s and now are experienced faculties in the university, secondly ones who are recently employed as faculty members, and finally who are now students in universities. Results show that in all 3 generations there are essential in-generation similarities, while comparatively there are some differentiations in inter-generative analysis.

Trip generation characteristics of special generators

Science.gov (United States)

2010-03-01

Special generators are introduced in the sequential four-step modeling procedure to represent certain types of facilities whose trip generation characteristics are not fully captured by the standard trip generation module. They are also used in the t...

ESR evidence of octahedral site occupation in ScH/sub x/:Er

International Nuclear Information System (INIS)

Venturini, E.L.

1978-01-01

The Er 3+ electron spin resonance spectrum at low temperatures in powdered Sc 9988 Er 0012 H 1 91 contains a GAMMA 7 doublet and associated hyperfine components with cubic site symmetry plus four additinal resonances arising from two distinct transitions with axial site symmetry. The axial lines are attributed to octahedral site occupation by protons in the vicinity of some Er 3+ impurities. The two axial transitions may be associated with two different types of distortions of the GAMMA 7 wave functions or possibly a GAMMA 8 1 quartet state

Perception Study on Workspace for Government Office in Malaysia

Directory of Open Access Journals (Sweden)

Zawawi E.M.A

2014-01-01

Full Text Available Nowadays, office workspaces consist of four (4 different generations; Veterans, Boomers, X-ers and Millenial, which different generation have different preferences. It is essential as Facilities Management Manager to understand the effects of the workspace design satisfactions on the generational of office employee and to improve the office working spaces. This research is focused only for government offices building in Selangor which consisted of ten (10 departments. This study aims to investigate the office workspace configuration that has been implemented in government offices as this influence the satisfaction of the employee and the organisation as a whole a long with creating better office workspace in reaching suitable office workspace. The study is a cross-sectional survey that used self-administered structured questionnaire to the target population of employees. Out of the one hundred and ninety (190 questionnaire administered, one hundred and eighty six (186 questionnaire were obtained constituting 98% for analysis. Non-parametric of SPSS approach was used to analyse data such as cumulative percentage of Demographic variables, percentage of the elements of workspace design (usability, flexibility, controllability and suitability, the level of employee’s satisfaction and the mean rank of the preference of crucial choices in creating better office workspace (Location, Use, Layout, Appearance, Support Spaces and Standardisation. The study develops understanding of which elements of satisfactions of workspace design and the crucial choices in creating better office workspace in providing satisfying design features. The study thereby provides advice for facility management decision making.

Distributed generation induction and permanent magnet generators

CERN Document Server

Lai, L

2007-01-01

Distributed power generation is a technology that could help to enable efficient, renewable energy production both in the developed and developing world. It includes all use of small electric power generators, whether located on the utility system, at the site of a utility customer, or at an isolated site not connected to the power grid. Induction generators (IGs) are the cheapest and most commonly used technology, compatible with renewable energy resources. Permanent magnet (PM) generators have traditionally been avoided due to high fabrication costs; however, compared with IGs they are more reliable and productive. Distributed Generation thoroughly examines the principles, possibilities and limitations of creating energy with both IGs and PM generators. It takes an electrical engineering approach in the analysis and testing of these generators, and includes diagrams and extensive case study examples o better demonstrate how the integration of energy sources can be accomplished. The book also provides the ...

Internprissättning : En studie av svenska företag

OpenAIRE

Körner, John; Davidsson, Niclas

2009-01-01

Begreppet ekonomistyrning innefattar många aktiviteter som i grunden handlar om att uppnå ekonomiska mål. Internprissättning är ett av dessa. När ett företag växer i storlek uppkommer ofta en diskussion om hur organisationen ska decentraliseras och vem som ska fatta beslut. Vanligt idag är att företagen decentraliseras och fler och fler beslut fattas lokalt. 1967 gjordes en enkätundersökning som innefattade totalt 235 svenska företag varav bland annat alla börsnoterade. Man ville undersök...

Dimorfismo sexual y morfometría de una población de Liolaemus olongasta (Iguania: Liolaeminae en La Laja, Albardón, San Juan, Argentina

Directory of Open Access Journals (Sweden)

Canovas, M. Gabriela

2005-12-01

Full Text Available El objetivo de este trabajo es analizar el dimorfismo sexual en una población de Liolaemus olongasta, utilizando variables morfométricas y generar hipótesis apartir de los resultados obtenidos. Los ejemplares fueron capturados en La Laja, Departamento Albardón, Provincia de San Juan (31º 19'S, 68º 41'W, durante los años 2000 y 2001. Dicha localidad se encuentra ubicada fitogeográficamente en la Región Neotropical, Dominio Chaqueño, Provincia del Monte, donde predominan las estepas arbustivas xerófilas, psammófilas o halófitas.

Optical Properties of Erbium Zinc Tellurite Glass System

Directory of Open Access Journals (Sweden)

Sidek Hj. Abdul Aziz

2015-01-01

Full Text Available Er3+-doped tellurite glasses with molar compositions of xEr2O3-20ZnO-(80-xTeO2 (x=0, 1, 2, 3, and 4 mole% (EZT have been successfully synthesized by the melt-quenching method. Density and molar volume have been measured. UV-VIS absorption spectra in the wavelength range of 400–800 nm at room temperature has been measured. The band gap for every composition has been calculated. Photoluminescence spectroscopy in the wavelength range of 400–650 nm and at room temperature has been evaluated.

'Sure, I Would Like to Continue'

DEFF Research Database (Denmark)

Schoenau-Fog, Henrik; Bjørner, Thomas

2012-01-01

In order to explore one aspect of the engaging nature of computer games, this study will propose a method that aims at classifying the experience of engagement in video games. Inspired by a literature review, we will focus on the fundamental causes of engagement that motivate a player so much...... that he or she wants to continue playing. By organizing this willingness to continue playing into six broad types of causes of engagement—intellectual, physical, sensory, social, narrative, and emotional—we describe a typology of player engagement and a method that is intended to map players’ experience...

Surely you're joking, Mr Duchamp!

Science.gov (United States)

Crease, Robert P.

2009-12-01

If you wander through the warren of galleries on the fifth floor of the Museum of Modern Art (MoMA) in New York, you encounter some of the most famous artworks of the late 19th and early 20th century. Vincent Van Gogh's Starry Night hangs in one room, Salvador Dali's The Persistence of Memory in another, Henri Matisse's Dance in a third. You will walk through a roomful of Piet Mondrian compositions, including Broadway Boogie Woogie, and it seems like every other painting is by Pablo Picasso, including his Les Demoiselles d'Avignon.

Sure confinement of spent sealed sources

International Nuclear Information System (INIS)

Lizcano, D.

2013-10-01

The industrial and technological development of the last decades produced and increment in the radiations application in different human activities. One of the main effects has been the production of radioactive wastes of all the levels. In Mexico, several stages of the waste management of low and intermediate level have not been completely resolved, as the case of the treatment and the final storage. In this work the confinement of spent sealed sources is described, maintaining as main objective the security of these sources and the protection to the workers and the people. (author)

APTIMA assay on SurePath liquid-based cervical samples compared to endocervical swab samples facilitated by a real time database

Directory of Open Access Journals (Sweden)

Khader Samer

2010-01-01

Full Text Available Background: Liquid-based cytology (LBC cervical samples are increasingly being used to test for pathogens, including: HPV, Chlamydia trachomatis (CT and Neisseria gonorrhoeae (GC using nucleic acid amplification tests. Several reports have shown the accuracy of such testing on ThinPrep (TP LBC samples. Fewer studies have evaluated SurePath (SP LBC samples, which utilize a different specimen preservative. This study was undertaken to assess the performance of the Aptima Combo 2 Assay (AC2 for CT and GC on SP versus endocervical swab samples in our laboratory. Materials and Methods: The live pathology database of Montefiore Medical Center was searched for patients with AC2 endocervical swab specimens and SP Paps taken the same day. SP samples from CT- and/or GC-positive endocervical swab patients and randomly selected negative patients were studied. In each case, 1.5 ml of the residual SP vial sample, which was in SP preservative and stored at room temperature, was transferred within seven days of collection to APTIMA specimen transfer tubes without any sample or patient identifiers. Blind testing with the AC2 assay was performed on the Tigris DTS System (Gen-probe, San Diego, CA. Finalized SP results were compared with the previously reported endocervical swab results for the entire group and separately for patients 25 years and younger and patients over 25 years. Results: SP specimens from 300 patients were tested. This included 181 swab CT-positive, 12 swab GC-positive, 7 CT and GC positive and 100 randomly selected swab CT and GC negative patients. Using the endocervical swab results as the patient′s infection status, AC2 assay of the SP samples showed: CT sensitivity 89.3%, CT specificity 100.0%; GC sensitivity and specificity 100.0%. CT sensitivity for patients 25 years or younger was 93.1%, versus 80.7% for patients over 25 years, a statistically significant difference (P = 0.02. Conclusions: Our results show that AC2 assay of 1.5 ml SP

Steam-Generator Integrity Program/Steam-Generator Group Project

International Nuclear Information System (INIS)

1982-10-01

The Steam Generator Integrity Program (SGIP) is a comprehensive effort addressing issues of nondestructive test (NDT) reliability, inservice inspection (ISI) requirements, and tube plugging criteria for PWR steam generators. In addition, the program has interactive research tasks relating primary side decontamination, secondary side cleaning, and proposed repair techniques to nondestructive inspectability and primary system integrity. The program has acquired a service degraded PWR steam generator for research purposes. This past year a research facility, the Steam Generator Examination Facility (SGEF), specifically designed for nondestructive and destructive examination tasks of the SGIP was completed. The Surry generator previously transported to the Hanford Reservation was then inserted into the SGEF. Nondestructive characterization of the generator from both primary and secondary sides has been initiated. Decontamination of the channelhead cold leg side was conducted. Radioactive field maps were established in the steam generator, at the generator surface and in the SGEF

Refrigeration generation using expander-generator units

Science.gov (United States)

Klimenko, A. V.; Agababov, V. S.; Koryagin, A. V.; Baidakova, Yu. O.

2016-05-01

The problems of using the expander-generator unit (EGU) to generate refrigeration, along with electricity were considered. It is shown that, on the level of the temperatures of refrigeration flows using the EGU, one can provide the refrigeration supply of the different consumers: ventilation and air conditioning plants and industrial refrigerators and freezers. The analysis of influence of process parameters on the cooling power of the EGU, which depends on the parameters of the gas expansion process in the expander and temperatures of cooled environment, was carried out. The schematic diagram of refrigeration generation plant based on EGU is presented. The features and advantages of EGU to generate refrigeration compared with thermotransformer of steam compressive and absorption types were shown, namely: there is no need to use the energy generated by burning fuel to operate the EGU; beneficial use of the heat delivered to gas from the flow being cooled in equipment operating on gas; energy production along with refrigeration generation, which makes it possible to create, using EGU, the trigeneration plants without using the energy power equipment. It is shown that the level of the temperatures of refrigeration flows, which can be obtained by using the EGU on existing technological decompression stations of the transported gas, allows providing the refrigeration supply of various consumers. The information that the refrigeration capacity of an expander-generator unit not only depends on the parameters of the process of expansion of gas flowing in the expander (flow rate, temperatures and pressures at the inlet and outlet) but it is also determined by the temperature needed for a consumer and the initial temperature of the flow of the refrigeration-carrier being cooled. The conclusion was made that the expander-generator units can be used to create trigeneration plants both at major power plants and at small energy.

Comparative Genomics of DNA Recombination and Repair in Cyanobacteria: Biotechnological Implications

Science.gov (United States)

Cassier-Chauvat, Corinne; Veaudor, Théo; Chauvat, Franck

2016-01-01

Cyanobacteria are fascinating photosynthetic prokaryotes that are regarded as the ancestors of the plant chloroplast; the purveyors of oxygen and biomass for the food chain; and promising cell factories for an environmentally friendly production of chemicals. In colonizing most waters and soils of our planet, cyanobacteria are inevitably challenged by environmental stresses that generate DNA damages. Furthermore, many strains engineered for biotechnological purposes can use DNA recombination to stop synthesizing the biotechnological product. Hence, it is important to study DNA recombination and repair in cyanobacteria for both basic and applied research. This review reports what is known in a few widely studied model cyanobacteria and what can be inferred by mining the sequenced genomes of morphologically and physiologically diverse strains. We show that cyanobacteria possess many E. coli-like DNA recombination and repair genes, and possibly other genes not yet identified. E. coli-homolog genes are unevenly distributed in cyanobacteria, in agreement with their wide genome diversity. Many genes are extremely well conserved in cyanobacteria (mutMS, radA, recA, recFO, recG, recN, ruvABC, ssb, and uvrABCD), even in small genomes, suggesting that they encode the core DNA repair process. In addition to these core genes, the marine Prochlorococcus and Synechococcus strains harbor recBCD (DNA recombination), umuCD (mutational DNA replication), as well as the key SOS genes lexA (regulation of the SOS system) and sulA (postponing of cell division until completion of DNA reparation). Hence, these strains could possess an E. coli-type SOS system. In contrast, several cyanobacteria endowed with larger genomes lack typical SOS genes. For examples, the two studied Gloeobacter strains lack alkB, lexA, and sulA; and Synechococcus PCC7942 has neither lexA nor recCD. Furthermore, the Synechocystis PCC6803 lexA product does not regulate DNA repair genes. Collectively, these findings

Power Generation for River and Tidal Generators

Energy Technology Data Exchange (ETDEWEB)

Muljadi, Eduard [National Renewable Energy Lab. (NREL), Golden, CO (United States); Wright, Alan [National Renewable Energy Lab. (NREL), Golden, CO (United States); Gevorgian, Vahan [National Renewable Energy Lab. (NREL), Golden, CO (United States); Donegan, James [Ocean Renewable Power Company (ORPC), Portland, ME (United States); Marnagh, Cian [Ocean Renewable Power Company (ORPC), Portland, ME (United States); McEntee, Jarlath [Ocean Renewable Power Company (ORPC), Portland, ME (United States)

2016-06-01

Renewable energy sources are the second largest contributor to global electricity production, after fossil fuels. The integration of renewable energy continued to grow in 2014 against a backdrop of increasing global energy consumption and a dramatic decline in oil prices during the second half of the year. As renewable generation has become less expensive during recent decades, and it becomes more accepted by the global population, the focus on renewable generation has expanded from primarily wind and solar to include new types with promising future applications, such as hydropower generation, including river and tidal generation. Today, hydropower is considered one of the most important renewable energy sources. In river and tidal generation, the input resource flow is slower but also steadier than it is in wind or solar generation, yet the level of water turbulent flow may vary from one place to another. This report focuses on hydrokinetic power conversion.

Technology and Social Media Use Among Patients Enrolled in Outpatient Addiction Treatment Programs: Cross-Sectional Survey Study.

Science.gov (United States)

Ashford, Robert D; Lynch, Kevin; Curtis, Brenda

2018-03-06

Substance use disorder research and practice have not yet taken advantage of emerging changes in communication patterns. While internet and social media use is widespread in the general population, little is known about how these mediums are used in substance use disorder treatment. The aims of this paper were to provide data on patients' with substance use disorders mobile phone ownership rates, usage patterns on multiple digital platforms (social media, internet, computer, and mobile apps), and their interest in the use of these platforms to monitor personal recovery. We conducted a cross-sectional survey of patients in 4 intensive outpatient substance use disorder treatment facilities in Philadelphia, PA, USA. Logistic regressions were used to examine associations among variables. Survey participants (N=259) were mostly male (72.9%, 188/259), African American (62.9%, 163/259), with annual incomes less than US $10,000 (62.5%, 161/259), and averaged 39 (SD 12.24) years of age. The vast majority of participants (93.8%, 243/259) owned a mobile phone and about 64.1% (166/259) owned a mobile phone with app capabilities, of which 85.1% (207/243) accessed the internet mainly through their mobile phone. There were no significant differences in age, gender, ethnicity, or socio-economic status by computer usage, internet usage, number of times participants changed their phone, type of mobile phone contract, or whether participants had unlimited calling plans. The sample was grouped into 3 age groups (Millennials, Generation Xers, and Baby Boomers). The rates of having a social media account differed across these 3 age groups with significant differences between Baby Boomers and both Generation Xers and Millennials (Psocial media account (73.6%, 190/259), most (76.1%, 144/190) reported using it daily and nearly all (98.2%, 186/190) used Facebook. Nearly half of participants (47.4%, 90/190) reported viewing content on social media that triggered substance cravings and an

Modeling and simulation of grid connected permanent magnet generator based small wind energy conversion systems

Energy Technology Data Exchange (ETDEWEB)

Arifujjaman, Md.

2011-07-01

In order to recover the maximum energy from small scale wind turbine systems many parameters have to be controlled. The aim of this paper is to propose a control strategy for the grid connected PMG-based small wind turbine systems. A mathematical model of small wind turbine systems was developed and the system simulated. Results show demonstrated that the control strategy is highly efficient. Sure enough it reduces the dependence on system variables, diminishes the system complexity, its furling and maximum power point controllers are efficient and it provides a stable operation for multiple wind speeds. This study developed a modeling and control strategy which was proved to be feasible by simulation results.

Unearthing the Past

DEFF Research Database (Denmark)

Bagger-Petersen, Mai Corlin

2013-01-01

Wu Wenguang, considered the father of independent Chinese documentary film, has since 2005 slowly but surely been handing over the camera to people on the margins and to younger generations of Chinese documentary filmmaking. In 2010 Wu and Caochangdi Workstation initiated the Folk Memory Document...... Documentary Project, where young filmmakers go to the countryside to gather and document memories of the Great Famine (1959-1961) from elderly villagers....

《中国合伙人》(英文)

Institute of Scientific and Technical Information of China (English)

Zhou; Zhiyong; Zhang; Ji; Lin; Aihua

2013-01-01

If Aaron Sorkin penned Chinese movies glamorizing the rise and fall of entrepreneurs in the 90s,then American Dreams in China surely would have been the jewel in his crown.In just 10 days,Dreams became the largest current-grossing blockbuster in China,generating nearly 51million USD—leading to its surreptitiouslymentioned subtitle:'The Chinese Social Network'.Alas,Sorkin had no role in the creation of Dreams;instead,Hong Kong

Alternative energy and distributed generation: thinking generations ahead

International Nuclear Information System (INIS)

Hunt, P.D.

2001-01-01

Alternative Energy will be discussed in the context of Distributed Generation, which is defined as a delivery platform for micro-power generation, close to the end-users, that can also supplement regional electricity grids. Many references in the paper pertain to Alberta. This is for two reasons: First, familiarity by the author, and more importantly, Alberta is the first region in Canada that has de-regulated it's electricity sector. De-regulation allows independent and smaller power generators to enter the market. Focussing on Alberta, with some references to other Canadian provinces and USA, electricity consumption trends will be reviewed and the pressures to decentralize electricity generation discussed. Re-structuring of the electricity sector, convergence of power generation and natural gas industries, advances in technologies, and environmental concerns are collectively contributing to the creation of a new business called 'Distributed Generation'. Efficiency benefits of combined heat and power associated with the more prominent emerging distributed generation technologies like micro-turbines and fuel cells, will be highlighted. Areas of research, development and demonstration that will enable the successful deployment of Distributed Generation will be suggested with respect to Generation Technologies, Systems Controls, Supporting Infrastructure, and Socio-Political Barriers. Estimates of investments in the various alternative energy technologies will be presented. Using current trends and emerging technologies the Paper will conclude with some predictions of future scenarios. (author)

Generative Contexts: Generating value between community and educational settings

Directory of Open Access Journals (Sweden)

Dan Lyles

2016-12-01

Full Text Available As educators and researchers, the authors of this paper participated, at different points in time, in a National Science Foundation funded research program to place culturally responsive education into generative justice frameworks. We discovered that the mechanisms to create generative contexts—contexts where value can possibly be returned to the community where the people generating that value live and work—in-school, after-school, and not-school were not uniform and required individual attention and care. One can think of generative contexts as the educational preconditions for generative justice. We aim to show how generative contexts are crucial to understanding a larger theory of generative justice. To do this we provide three examples of generative contexts. First is a generative context in-school, where a technology teacher brought a community hairstylist into her classroom to help teach computer programming through cornrow braiding; a skill relevant to her African American students. Next is a generative context after-school where a student demonstrates soldering skills that she learned from family members. The third is a not-school “E-Waste to Makerspace” workshop where students created garden-technology designs for low-income communities. 

Teaching Millennials and Generation Z: Bridging the Generational Divide.

Science.gov (United States)

Shatto, Bobbi; Erwin, Kelly

2017-02-01

Most undergraduate students today are part of the millennial generation. However, the next wave of students-Generation Z-are just beginning to enter universities. Although these groups share many similarities, they each have unique characteristics that create challenges in the classroom. Incorporating technology, engaging students with adaptive learning activities, and understanding basic generational differences are ways to limit the effects of generational conflict while keeping both millennials and Generation Z students engaged in learning. It is important to understand basic differences and distinctions across generations for developing pedagogy that reaches these unique student populations.

Cheaper power generation from surplus steam generating capacities

International Nuclear Information System (INIS)

Gupta, K.

1996-01-01

Prior to independence most industries had their own captive power generation. Steam was generated in own medium/low pressure boilers and passed through extraction condensing turbines for power generation. Extraction steam was used for process. With cheaper power made available in Nehru era by undertaking large hydro power schemes, captive power generation in industries was almost abandoned except in sugar and large paper factories, which were high consumers of steam. (author)

Isolation and sequence analysis of pCS36-4CPA, a small plasmid from Citrobacter sp. 36-4CPA.

Science.gov (United States)

Zharikova, Natalia V; Iasakov, Timur R; Bumazhkin, Boris K; Patutina, Ekaterina O; Zhurenko, Evgeniia I; Korobov, Vladislav V; Sagitova, Alina I; Kuznetsov, Boris B; Markusheva, Tatiana V

2018-05-01

A small plasmid designated pCS36-4CPA with a size of 5217 base pairs and G-C content of 50.74% was isolated from Citrobacter sp. 36-4CPA. The origin of replication ( ori ) of the plasmid was identified as a region of about 800 bp in length with an identity of 67.1% to the ColE1 plasmid at the nucleotide level. The replication region contained typical elements of ColE1-like plasmids: RNA I and RNA II with their corresponding -10 and -35 boxes, a single-strand initiation site ( ssi ), and a lagging-strand termination site ( terH ). As seen in other ColE1-like plasmids, pCS36-4CPA carried mobilisation machinery that include mobABCD genes but it did not possess the rom gene. Analysis of the multimer resolution site ( mrs ) was performed and XerC and XerD binding sites were identified. Also, the 70-nt transcript Rcd of pCS36-4CPA was predicted and similarity of the transcript's secondary structure with those of the ColE1-family was shown. The cargo module of pCS36-4CPA contained three open reading frames (ORFs). Two of them (ORF5 and ORF6) showed no significant homology to any known gene sequences but contained putative THAP DNA-binding (DBD) and type II restriction endonuclease Eco O109I domains. The seventh open reading frame (ORF7) encodes YhdJ-like DNA modification methylase. The region highly homologous to pCS36-4CPA was found in the Salmonella phage SE2 genome.

The different generation of nuclear reactors from Generation-1 to Generation-4

International Nuclear Information System (INIS)

Cognet, G.

2010-01-01

In this work author deals with the history of the development of nuclear reactors from Generation-1 to Generation-4. The fuel cycle and radioactive waste management as well as major accidents are presented, too.

A large capacity turbine generator for nuclear power generation

International Nuclear Information System (INIS)

Maeda, Susumu; Miki, Takahiro; Suzuki, Kazuichi

2000-01-01

In future large capacity nuclear power plant, capacity of a generator to be applied will be 1800 MVA of the largest class in the world. In response to this, the Mitsubishi Electric Co., Ltd. began to carry out element technology verification of a four-pole large capacity turbine generator mainly using upgrading technique of large capacity, since 1994 fiscal year. And, aiming at reliability verification of the 1800 MVA class generator, a model generator with same cross-section as that of an actual one was manufactured, to carry out some verifications on its electrified tests, and so on. Every performance evaluation result of tests on the model generator were good, and high reliability to design and manufacturing technique of the 1800 MVA class generator could be verified. In future, on the base of these technologies, further upgrading of reliability on the large capacity turbine generator for nuclear power generation is intended to be carried out. (G.K.)

Generational diversity.

Science.gov (United States)

Kramer, Linda W

2010-01-01

Generational diversity has proven challenges for nurse leaders, and generational values may influence ideas about work and career planning. This article discusses generational gaps, influencing factors and support, and the various generational groups present in today's workplace as well as the consequences of need addressing these issues. The article ends with a discussion of possible solutions.

A viable technology to generate third-generation biofuel

DEFF Research Database (Denmark)

Singh, Anoop; Olsen, Stig Irving; Nigam, Poonam Singh

2011-01-01

First generation biofuels are commercialized at large as the production technologies are well developed. However, to grow the raw materials, there is a great need to compromise with food security, which made first generation biofuels not so much promising. The second generation of biofuels does...

Convergence Analysis of a Class of Computational Intelligence Approaches

Directory of Open Access Journals (Sweden)

Junfeng Chen

2013-01-01

Full Text Available Computational intelligence approaches is a relatively new interdisciplinary field of research with many promising application areas. Although the computational intelligence approaches have gained huge popularity, it is difficult to analyze the convergence. In this paper, a computational model is built up for a class of computational intelligence approaches represented by the canonical forms of generic algorithms, ant colony optimization, and particle swarm optimization in order to describe the common features of these algorithms. And then, two quantification indices, that is, the variation rate and the progress rate, are defined, respectively, to indicate the variety and the optimality of the solution sets generated in the search process of the model. Moreover, we give four types of probabilistic convergence for the solution set updating sequences, and their relations are discussed. Finally, the sufficient conditions are derived for the almost sure weak convergence and the almost sure strong convergence of the model by introducing the martingale theory into the Markov chain analysis.

Implementation of the new solid waste management and public cleansing act-The way forward

International Nuclear Information System (INIS)

Sanusi Awi

2010-01-01

In Malaysia, Act 672 are one act that mention on Public Cleansing Managements Services and Solid Waste Management. Scope of Public Cleansing Managements Services included public places, public drains, public toilets, public hawker centers, public markets and so on. These act also mentioned about recycling, control of solid waste, enforcement provision, and assumption of control, tribunal, charges, licensing and many more. So, for the implementation, we have collecting households waste, licensing collectors for all categories of solid waste, improving Solid Waste Management facilities and others. We can monitor the concession using hand held system. Through this systems, we recorded evidence of defaults, then we upload the data, after that, we determine the penalty for each scheme area and then we report the generation. All of these was doing in order to make sure all the Malaysian citizens obey the rules and to make sure there is no abuse on these issues. Fortunately, these can increase our environment safe and sustained forever.

Xenoestrogenic and dioxin-like activity in blood of East Greenland polar bears (Ursus maritimus)

DEFF Research Database (Denmark)

Erdmann, Simon Erik; Dietz, Rune; Sonne, Christian

2013-01-01

chromatography (HPLC). ER mediated transactivity was determined using the ER luciferase reporter MVLN cell assay. The extracts were tested alone (XER) and together with 17β-estradiol (E2) as a physiological mimic (XERcomp). Dioxins and dioxin-like (DL) compounds were extracted by a combination of SPE...... and the Supelco Dioxin Prep System®. AhR mediated dioxin-like transactivity was determined using the AhR luciferase reporter Hepa 1.12cR cell assay. Agonistic ER transactivity was elicited by 19% of the samples, and a further increased E2 induced ER response was found for 52%, whereas 17% antagonized the E2...

Motor/generator

Science.gov (United States)

Hickam, Christopher Dale [Glasford, IL

2008-05-13

A motor/generator is provided for connecting between a transmission input shaft and an output shaft of a prime mover. The motor/generator may include a motor/generator housing, a stator mounted to the motor/generator housing, a rotor mounted at least partially within the motor/generator housing and rotatable about a rotor rotation axis, and a transmission-shaft coupler drivingly coupled to the rotor. The transmission-shaft coupler may include a clamp, which may include a base attached to the rotor and a plurality of adjustable jaws.

Wind Generators

Science.gov (United States)

1989-01-01

When Enerpro, Inc. president, Frank J. Bourbeau, attempted to file a patent on a system for synchronizing a wind generator to the electric utility grid, he discovered Marshall Space Flight Center's Frank Nola's power factor controller. Bourbeau advanced the technology and received a NASA license and a patent for his Auto Synchronous Controller (ASC). The ASC reduces generator "inrush current," which occurs when large generators are abruptly brought on line. It controls voltage so the generator is smoothly connected to the utility grid when it reaches its synchronous speed, protecting the components from inrush current damage. Generator efficiency is also increased in light winds by applying lower than rated voltage. Wind energy is utilized to drive turbines to generate electricity for utility companies.

Sustainability in the Chemical Industry. By Eric Johnson, Springer, 2012; 173 pages. Price CHF 133.50, ISBN 978-94-007-3834-8

Directory of Open Access Journals (Sweden)

Shu-Kun Lin

2013-01-01

Full Text Available It’s the new rock and roll. It’s the new black. Sustainability is trendy, and not just among hipsters and pop stars. The uncool chemical sector helped pioneer it, and today, companies inside and outside the sector have embraced it. But what have they embraced? Surely not the Brundtland definition of meeting “the needs of the present without compromising the ability of future generations to meet their own needs.”

Parameterization and Observability Analysis of Scalable Battery Clusters for Onboard Thermal Management

Science.gov (United States)

2011-12-01

which includes the current from regenerative braking . Repeated UAC cycles are used as the model input to generate the surface temperature Ts to test...battery thermal dynamics is the key to an effective thermal management system and to main- tain safety, performance, and life longevity of these Li-Ion...the current and surface temperature of the battery, which are the commonly mea- sured signals in a vehicle battery management system . It is shown that

[Intel random number generator-based true random number generator].

Science.gov (United States)

Huang, Feng; Shen, Hong

2004-09-01

To establish a true random number generator on the basis of certain Intel chips. The random numbers were acquired by programming using Microsoft Visual C++ 6.0 via register reading from the random number generator (RNG) unit of an Intel 815 chipset-based computer with Intel Security Driver (ISD). We tested the generator with 500 random numbers in NIST FIPS 140-1 and X(2) R-Squared test, and the result showed that the random number it generated satisfied the demand of independence and uniform distribution. We also compared the random numbers generated by Intel RNG-based true random number generator and those from the random number table statistically, by using the same amount of 7500 random numbers in the same value domain, which showed that the SD, SE and CV of Intel RNG-based random number generator were less than those of the random number table. The result of u test of two CVs revealed no significant difference between the two methods. Intel RNG-based random number generator can produce high-quality random numbers with good independence and uniform distribution, and solves some problems with random number table in acquisition of the random numbers.

Modeling and Simulation of Generator Side Converter of Doubly Fed Induction Generator-Based Wind Power Generation System

DEFF Research Database (Denmark)

Guo, Yougui; Zeng, Ping; Blaabjerg, Frede

2010-01-01

A real wind power generation system is given in this paper. SVM control strategy and vector control is applied for generator side converter and doubly fed induction generator respectively. First the mathematical models of the wind turbine rotor, drive train, generator side converter are described...

Second harmonic generation and sum frequency generation

International Nuclear Information System (INIS)

Pellin, M.J.; Biwer, B.M.; Schauer, M.W.; Frye, J.M.; Gruen, D.M.

1990-01-01

Second harmonic generation and sum frequency generation are increasingly being used as in situ surface probes. These techniques are coherent and inherently surface sensitive by the nature of the mediums response to intense laser light. Here we will review these two techniques using aqueous corrosion as an example problem. Aqueous corrosion of technologically important materials such as Fe, Ni and Cr proceeds from a reduced metal surface with layer by layer growth of oxide films mitigated by compositional changes in the chemical makeup of the growing film. Passivation of the metal surface is achieved after growth of only a few tens of atomic layers of metal oxide. Surface Second Harmonic Generation and a related nonlinear laser technique, Sum Frequency Generation have demonstrated an ability to probe the surface composition of growing films even in the presence of aqueous solutions. 96 refs., 4 figs

Next generation of weather generators on web service framework

Science.gov (United States)

Chinnachodteeranun, R.; Hung, N. D.; Honda, K.; Ines, A. V. M.

2016-12-01

Weather generator is a statistical model that synthesizes possible realization of long-term historical weather in future. It generates several tens to hundreds of realizations stochastically based on statistical analysis. Realization is essential information as a crop modeling's input for simulating crop growth and yield. Moreover, they can be contributed to analyzing uncertainty of weather to crop development stage and to decision support system on e.g. water management and fertilizer management. Performing crop modeling requires multidisciplinary skills which limit the usage of weather generator only in a research group who developed it as well as a barrier for newcomers. To improve the procedures of performing weather generators as well as the methodology to acquire the realization in a standard way, we implemented a framework for providing weather generators as web services, which support service interoperability. Legacy weather generator programs were wrapped in the web service framework. The service interfaces were implemented based on an international standard that was Sensor Observation Service (SOS) defined by Open Geospatial Consortium (OGC). Clients can request realizations generated by the model through SOS Web service. Hierarchical data preparation processes required for weather generator are also implemented as web services and seamlessly wired. Analysts and applications can invoke services over a network easily. The services facilitate the development of agricultural applications and also reduce the workload of analysts on iterative data preparation and handle legacy weather generator program. This architectural design and implementation can be a prototype for constructing further services on top of interoperable sensor network system. This framework opens an opportunity for other sectors such as application developers and scientists in other fields to utilize weather generators.

Lexicon generation methods, lexicon generation devices, and lexicon generation articles of manufacture

Science.gov (United States)

Carter, Richard J [Richland, WA; McCall, Jonathon D [West Richland, WA; Whitney, Paul D [Richland, WA; Gregory, Michelle L [Richland, WA; Turner, Alan E [Kennewick, WA; Hetzler, Elizabeth G [Kennewick, WA; White, Amanda M [Kennewick, WA; Posse, Christian [Seattle, WA; Nakamura, Grant C [Kennewick, WA

2010-10-26

Lexicon generation methods, computer implemented lexicon editing methods, lexicon generation devices, lexicon editors, and articles of manufacture are described according to some aspects. In one aspect, a lexicon generation method includes providing a seed vector indicative of occurrences of a plurality of seed terms within a plurality of text items, providing a plurality of content vectors indicative of occurrences of respective ones of a plurality of content terms within the text items, comparing individual ones of the content vectors with respect to the seed vector, and responsive to the comparing, selecting at least one of the content terms as a term of a lexicon usable in sentiment analysis of text.

Methodological study for management of the generated effluents during MTR-type fuel elements fabrication at IPEN/CNEN-SP plant

International Nuclear Information System (INIS)

Tanzillo Santos, Glaucia Regina

2008-01-01

Full text: The aim of the industrial activities success, front to a more and more informed and demanding society and to a more and more competitive market demands an environmental administration policy which doesn't limit itself to assist the legislation but anticipate and prevent, in a responsible way, possible damages to the environment. One of the main programs of the Institute of Energetic and Nuclear Research of the National Commission of Nuclear Energy located in Brazil, through the Center of Nuclear Fuel -CCN- is to manufacture MTR-type fuel elements using low-enrichment uranium (20 wt % 235 U), to supply its IEA-R1 research reactor. Integrated in this program, this work aims at well developing and assuring a methodology to implant an environment, health and safety policy, foreseeing its management with the use of detailed data reports and through the adoption of new tools for improving the management, in order to fulfil the applicable legislation and accomplish all the environmental, operational and works aspects. The applied methodology for the effluents management comprises different aspects, including the specific environmental legislation of a country, main available effluents treatment techniques, process flow analyses from raw materials and intakes to products, generated effluents, residuals and emissions. Data collections were accomplished for points gathering and tests characterization, classification and compatibility of the generated effluents and their eventual environmental impacts. This study aims to implant the sustainability concept in order to guarantee access to financial resources, allowing cost reduction, maximizing long-term profits, preventing and reducing environmental accident risks and stimulating both the attraction and the keeping of a motivated manpower. Work on this project has already started and, even though many technical actions have not still ended, the results have being extremely valuable. These results can already give to

Instant Generation

Science.gov (United States)

Loveland, Elaina

2017-01-01

Generation Z students (born between 1995-2010) have replaced millennials on college campuses. Generation Z students are entrepreneurial, desire practical skills with their education, and are concerned about the cost of college. This article presents what need to be known about this new generation of students.

Radionuclide generators

International Nuclear Information System (INIS)

Lambrecht, R.M.; Wollongong Univ.; Tomiyoshi, K.; Sekine, T.

1997-01-01

The present status and future directions of research and development on radionuclide generator technology are reported. The recent interest to develop double-neutron capture reactions for production of in vivo generators; neutron rich nuclides for radio-immunotherapeutic pharmaceuticals: and advances with ultra-short lived generators is highlighted. Emphasis is focused on: production of the parent radionuclide; the selection and the evaluation of support materials and eluents with respect to the resultant radiochemical yield of the daughter, and the breakthrough of the radionuclide parent: and, the uses of radionuclide generators in radiopharmaceutical chemistry, biomedical and industrial applications. The 62 Zn → 62 Cu, 66 Ni → 66 Cu, 103m Rh → 103 Rh, 188 W → 188 Re and the 225 Ac → 221 Fr → 213 Bi generators are predicted to be emphasized for future development. Coverage of the 99 Mo → 99m Tc generator was excluded, as it the subject of another review. The literature search ended June, 1996. (orig.)

Cylindrical neutron generator

Science.gov (United States)

Leung, Ka-Ngo [Hercules, CA

2008-04-22

A cylindrical neutron generator is formed with a coaxial RF-driven plasma ion source and target. A deuterium (or deuterium and tritium) plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical neutron generating target is coaxial with the ion generator, separated by plasma and extraction electrodes which contain many slots. The plasma generator emanates ions radially over 360.degree. and the cylindrical target is thus irradiated by ions over its entire circumference. The plasma generator and target may be as long as desired. The plasma generator may be in the center and the neutron target on the outside, or the plasma generator may be on the outside and the target on the inside. In a nested configuration, several concentric targets and plasma generating regions are nested to increase the neutron flux.

Leading Generation Y

National Research Council Canada - National Science Library

Newman, Jill M

2008-01-01

.... Whether referred to as the Millennial Generation, Generation Y or the Next Generation, the Army needs to consider the gap between Boomers, Generation X and the Soldiers that fill our junior ranks...

Random pulse generator

International Nuclear Information System (INIS)

Guo Ya'nan; Jin Dapeng; Zhao Dixin; Liu Zhen'an; Qiao Qiao; Chinese Academy of Sciences, Beijing

2007-01-01

Due to the randomness of radioactive decay and nuclear reaction, the signals from detectors are random in time. But normal pulse generator generates periodical pulses. To measure the performances of nuclear electronic devices under random inputs, a random generator is necessary. Types of random pulse generator are reviewed, 2 digital random pulse generators are introduced. (authors)

Generation Z: Educating and Engaging the Next Generation of Students

Science.gov (United States)

Seemiller, Corey; Grace, Meghan

2017-01-01

In 1995, the Internet was born. So, too, was Generation Z. The oldest of this post-Millennial generation arrived to college in 2013, and more than four years later, Generation Z students fill the nation's classrooms, campus programs, and residence halls. In order to recruit, educate, and graduate this new generational cohort effectively, educators…

The micro hydraulic power, a sure value

International Nuclear Information System (INIS)

Anon.

2003-01-01

The micro hydroelectricity is a proven technology which has now reached maturity. Ideal for electrification of remote sites, it also serves a complement to national electric production. A recent study carried out by the ESHA estimates the potential which still available in terms of micro hydraulic power plants at 5939 MW. The small hydro power capacity (>10 MW) installed in European union and the available potential of small hydro power are presented. (A.L.B.)

The slow but sure path to recovery

Energy Technology Data Exchange (ETDEWEB)

O' Mahoney, H.

2000-02-01

North Asia is in economic recovery, resulting in an upturn in imported coal and iron ore at the turn of the year, although with a somewhat sluggish recovery in steel production when compared with the global market. The article discusses recent figures and future forecasts for steel, iron ore, coking coal and steam coal markets. Figures given for imports to Japan, South Korea, Taiwan and China show expected increases of imports for 1999 and 2000. 2 tabs., 3 photos.

"Make Sure Somebody Will Survive From This"

DEFF Research Database (Denmark)

B. Jensen, Anja M.

2016-01-01

Based on anthropological fieldwork among Danish organ donor families and hospital staff in neurointensive care units, this article explores the transformative practices of hope in Danish organ donation. Focusing on various phases of the organ donation process, I demonstrate how families and profe......Based on anthropological fieldwork among Danish organ donor families and hospital staff in neurointensive care units, this article explores the transformative practices of hope in Danish organ donation. Focusing on various phases of the organ donation process, I demonstrate how families...... and professionals practice hope in astounding ways: when hoping for organs, when hoping for the end of patient suffering, when hoping for the usability of the donor body, and when hoping to help future donor families by sharing painful experiences. By focusing on such practices and transformations of hope......, this article sheds light on the social negotiations of life and death among families and staffs in medical contexts and describes how the dignity of the deceased donor and the usability of the donor body are closely connected in family attempts to make donation decisions meaningful during and after a tragic...

The next accident is sure to come

International Nuclear Information System (INIS)

Hirsch, H.

1986-01-01

In case of a serious nuclear accident, the region in the vicinity of the nuclear power plant is always most affected. So shutting off the nuclear power plants in one's own country would certainly bring about more safety. It must be mentioned in this context that in our country, the population density in the regions surrounding nuclear power stations in general is twenty times higher than that of the Chernobyl region. In the light of the problems accompanying nuclear energy, a fast nuclear power phaseout - over let's say one or two years - seems to be a sensible and feasible strategy. Short-term effects would be not only cost increases, but also a less fast cut-back of emissions from fossil-fueled power plants. On the medium or long run, this strategy would give us the chance of switching to a more economic energy policy, and a less harmful one at that. Making the phaseout period longer than just a couple of years would create more problems than advantages: Making it ten years, the radioactive waste will have doubled by then. And nuclear waste disposal also is a problem of volume and quantity and nobody can predict today to what extent ever growing quantities of waste will create qualitative surges of the hazards involved (e.g.) due to the relatively safest disposal sites being filled up). (orig./GL) [de

Almost-sure identifiability of multidimensional harmonic retrieval

NARCIS (Netherlands)

Jiang, T; Sidiropoulos, ND; ten Berge, JMF

Two-dimensional (2-D) and, more generally, multidimensional harmonic retrieval is of interest in a variety of applications, including transmitter localization and joint time and frequency offset estimation in wireless communications. The associated identifiability problem is key in understanding the

Making Sure you Solve the Right Problem

Directory of Open Access Journals (Sweden)

Kim Cartledge

2009-12-01

Full Text Available Macleod et al. have given us an admirable case study and argued that "... there is an urgent need to create stronger and more transparent, integrated, and adaptive linkages between opening-up and closing down mechanisms at the science-policy interface." Two questions must be addressed: what sorts of managerial reform would be required to achieve this? and Is this likely to happen? A natural subsidiarity makes large institutions more inclined to "closing down" (specification actions and smaller ones more inclined to open problems up. The method of boundary judgments developed in integrative research could be applied to the science-policy interface but there are political and sociological reasons why this is unlikely to happen. Receptiveness to opening up actions is a prerequisite of innovation. Innovations are suppressed in times of geopolitical and economic stress. The result is often an ill-structured, co-evolutionary dynamic in which the actions of one species or population reduce the fitness of another.

Optimising generators

Energy Technology Data Exchange (ETDEWEB)

Guerra, E.J.; Garcia, A.O.; Graffigna, F.M.; Verdu, C.A. (IMPSA (Argentina). Generators Div.)

1994-11-01

A new computer tool, the ARGEN program, has been developed for dimensioning large hydroelectric generators. This results in better designs, and reduces calculation time for engineers. ARGEN performs dimensional tailoring of salient pole synchronous machines in generators, synchronous condensers, and generator-motors. The operation and uses of ARGEN are explained and its advantages are listed in this article. (UK)

DC Motor control using motor-generator set with controlled generator field

Science.gov (United States)

Belsterling, Charles A.; Stone, John

1982-01-01

A d.c. generator is connected in series opposed to the polarity of a d.c. power source supplying a d.c. drive motor. The generator is part of a motor-generator set, the motor of which is supplied from the power source connected to the motor. A generator field control means varies the field produced by at least one of the generator windings in order to change the effective voltage output. When the generator voltage is exactly equal to the d.c. voltage supply, no voltage is applied across the drive motor. As the field of the generator is reduced, the drive motor is supplied greater voltage until the full voltage of the d.c. power source is supplied when the generator has zero field applied. Additional voltage may be applied across the drive motor by reversing and increasing the reversed field on the generator. The drive motor may be reversed in direction from standstill by increasing the generator field so that a reverse voltage is applied across the d.c. motor.

Computer applications in diagnostic imaging.

Science.gov (United States)

Horii, S C

1991-03-01

This article has introduced the nature, generation, use, and future of digital imaging. As digital technology has transformed other aspects of our lives--has the reader tried to buy a conventional record album recently? almost all music store stock is now compact disks--it is sure to continue to transform medicine as well. Whether that transformation will be to our liking as physicians or a source of frustration and disappointment is dependent on understanding the issues involved.

Finding gold in the supply chain.

Science.gov (United States)

Caudle, Allen

2009-12-01

To optimize supply chain performance and achieve savings that enhance the bottom line, hospitals should: Generate purchase orders for every item purchased. Ensure the organization is protected from undue vendor influence. Keep track of where supply chain dollars are going. Review contracts regularly to ensure competitiveness. Have a contract for each product category. Buy only what the organization is sure to use. Get rid of excess inventory. Develop a strategic plan for continued supply chain savings.

Generational Differences in Work Attitudes : A comparative analysis of Generation Y and preceding generations from companies in Sweden

OpenAIRE

Sajjadi, Amir; Åkesson Castillo, Lars Christian Felipe; Sun, Bicen

2012-01-01

Introduction: A population that can live and work longer has resulted in a wider range of generations being active in the workplace simultaneously and the diverse multi-generational work environment is a new challenge for human resource management. The most recent generation that is entering the job market is Generation Y, which is also referred to as Millennials. Currently, organizations and Human Resource departments are facing the issue of Generation Y entering the workforce and the issue ...

Nine Weddings in Half a Century

Institute of Scientific and Technical Information of China (English)

JENNIFER; LIM

1999-01-01

THERE is a Chinese saying the sentimentof which I am sure you all know: "Themore children you have, the greater your goodfortune and happiness." Here we see a mind-set that existed in China for generations, thebelief that having more children will not onlysafeguard your well-being and care in old agebut will help the healthy development of theclan. My parents belong to a generation whooft stated this philosophy. My mother married young (she was not yetsixteen) and managed to fit in nine children inall - eight boys and one girl, me. When mymother reflects on the past she says that shedid not experience much of the luck the

Digital generation, net generation, millennials, Y generation: reflecting about the relation between the youths and digital technologies

OpenAIRE

Martins, Cristina; Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) Rede La Salle

2015-01-01

This study aimed is critically reflect on the relationship of the youths with the TD, by discussing the generational approach. This approach in different researches linked the youths, through terms like Digital Generation, Net Generation, Millennials and Y Generation, creating stereotypes and excluding social, cultural, economic and political perspectives. The results of this qualitative research, based on reflections through literature, sees reality of Brazilian youths that do not have acces...

Isotope generator

International Nuclear Information System (INIS)

1979-01-01

The patent describes an isotope generator incorporating the possibility of stopping elution before the elution vessel is completely full. Sterile ventilation of the whole system can then occur, including of both generator reservoir and elution vessel. A sterile, and therefore pharmaceutically acceptable, elution fluid is thus obtained and the interior of the generator is not polluted with non-sterile air. (T.P.)

Generation unit selection via capital asset pricing model for generation planning

Energy Technology Data Exchange (ETDEWEB)

Romy Cahyadi; K. Jo Min; Chung-Hsiao Wang; Nick Abi-Samra [College of Engineering, Ames, IA (USA)

2003-11-01

The USA's electric power industry is undergoing substantial regulatory and organizational changes. Such changes introduce substantial financial risk in generation planning. In order to incorporate the financial risk into the capital investment decision process of generation planning, this paper develops and analyses a generation unit selection process via the capital asset pricing model (CAPM). In particular, utilizing realistic data on gas-fired, coal-fired, and wind power generation units, the authors show which and how concrete steps can be taken for generation planning purposes. It is hoped that the generation unit selection process will help utilities in the area of effective and efficient generation planning when financial risks are considered. 20 refs., 14 tabs.

The Employees of Baby Boomers Generation, Generation X, Generation Y and Generation Z in Selected Czech Corporations as Conceivers of Development and Competitiveness in their Corporation

Directory of Open Access Journals (Sweden)

Bejtkovský Jiří

2016-12-01

Full Text Available The corporations using the varied workforce can supply a greater variety of solutions to problems in service, sourcing, and allocation of their resources. The current labor market mentions four generations that are living and working today: the Baby boomers generation, the Generation X, the Generation Y and the Generation Z. The differences between generations can affect the way corporations recruit and develop teams, deal with change, motivate, stimulate and manage employees, and boost productivity, competitiveness and service effectiveness. A corporation’s success and competitiveness depend on its ability to embrace diversity and realize the competitive advantages and benefits. The aim of this paper is to present the current generation of employees (the employees of Baby Boomers Generation, Generation X, Generation Y and Generation Z in the labor market by secondary research and then to introduce the results of primary research that was implemented in selected corporations in the Czech Republic. The contribution presents a view of some of the results of quantitative and qualitative research conducted in selected corporations in the Czech Republic. These researches were conducted in 2015 on a sample of 3,364 respondents, and the results were analyzed. Two research hypotheses and one research question have been formulated. The verification or rejection of null research hypothesis was done through the statistical method of the Pearson’s Chi-square test. It was found that perception of the choice of superior from a particular generation does depend on the age of employees in selected corporations. It was also determined that there are statistically significant dependences between the preference for eterogeneous or homogeneous cooperation and the age of employees in selected corporations.

Gamma ray generator

Science.gov (United States)

Firestone, Richard B; Reijonen, Jani

2014-05-27

An embodiment of a gamma ray generator includes a neutron generator and a moderator. The moderator is coupled to the neutron generator. The moderator includes a neutron capture material. In operation, the neutron generator produces neutrons and the neutron capture material captures at least some of the neutrons to produces gamma rays. An application of the gamma ray generator is as a source of gamma rays for calibration of gamma ray detectors.

Semi-Supervised Generation with Cluster-aware Generative Models

DEFF Research Database (Denmark)

Maaløe, Lars; Fraccaro, Marco; Winther, Ole

2017-01-01

Deep generative models trained with large amounts of unlabelled data have proven to be powerful within the domain of unsupervised learning. Many real life data sets contain a small amount of labelled data points, that are typically disregarded when training generative models. We propose the Clust...... a log-likelihood of −79.38 nats on permutation invariant MNIST, while also achieving competitive semi-supervised classification accuracies. The model can also be trained fully unsupervised, and still improve the log-likelihood performance with respect to related methods.......Deep generative models trained with large amounts of unlabelled data have proven to be powerful within the domain of unsupervised learning. Many real life data sets contain a small amount of labelled data points, that are typically disregarded when training generative models. We propose the Cluster...

Should LSIL with ASC-H (LSIL-H in cervical smears be an independent category? A study on SurePath™ specimens with review of literature

Directory of Open Access Journals (Sweden)

Shidham Vinod B

2007-03-01

Full Text Available Abstract Background Cervical smears exhibiting unequivocal features of 'low grade squamous intraepithelial lesion' (LSIL are occasionally also admixed with some cells suspicious for, but not diagnostic of, 'high grade squamous intraepithelial lesion' (HSIL. Only a few studies, mostly reported as abstracts, have evaluated this concurrence. In this study, we evaluate the current evidence that favors a distinct category for "LSIL, cannot exclude HSIL" (LSIL-H, and suggest a management algorithm based on combinations of current ASCCP guidelines for related interpretations. Methods We studied SurePath™ preparations of cervical specimens from various institutions during one year period. Cytohisto correlation was performed in cases with cervical biopsies submitted to our institution. The status of HPV DNA testing was also noted in some LSIL-H cases with biopsy results. Results Out of 77,979 cases 1,970 interpreted as LSIL (1,523, LSIL-H (146, 'atypical squamous cells, cannot exclude HSIL' (ASC-H (109, and HSIL (192 were selected. Concurrent biopsy results were available in 40% (Total 792 cases: 557 LSIL, 88 LSIL-H, 38 ASCH, and 109 HSIL. Biopsy results were grouped into A. negative for dysplasia (ND, B. low grade (HPV, CIN1, CIN1 with HPV, and C. high grade (CIN 2 and above. The positive predictive values for various biopsy results in relation to initial cytopathologic interpretation were: a. LSIL: (557 cases: ND 32% (179, low grade- 58% (323, high grade- 10% (55; b. LSIL-H: (88 cases: ND 24% (21, low grade- 43% (38, high grade- 33% (29; c. ASCH: (38 cases: ND 32% (12, low grade- 37% (14, high grade- 31% (12; d. HSIL (109 cases: ND 5% (6, low grade 26% (28, high grade 69% (75. The patterns of cervical biopsy results in cases reported as LSIL-H were compared with that observed in cases with LSIL, ASC-H, and HSIL. 94% (32 of 34 of LSIL-H were positive for high risk (HR HPV, 1 was negative for HR HPV but positive for low risk (LR, and 1 LSIL-H was

Will Large DSO-Managed Group Practices Be the Predominant Setting for Oral Health Care by 2025? Two Viewpoints: Viewpoint 1: Large DSO-Managed Group Practices Will Be the Setting in Which the Majority of Oral Health Care Is Delivered by 2025 and Viewpoint 2: Increases in DSO-Managed Group Practices Will Be Offset by Models Allowing Dentists to Retain the Independence and Freedom of a Traditional Practice.

Science.gov (United States)

Cole, James R; Dodge, William W; Findley, John S; Young, Stephen K; Horn, Bruce D; Kalkwarf, Kenneth L; Martin, Max M; Winder, Ronald L

2015-05-01

This Point/Counterpoint article discusses the transformation of dental practice from the traditional solo/small-group (partnership) model of the 1900s to large Dental Support Organizations (DSO) that support affiliated dental practices by providing nonclinical functions such as, but not limited to, accounting, human resources, marketing, and legal and practice management. Many feel that DSO-managed group practices (DMGPs) with employed providers will become the setting in which the majority of oral health care will be delivered in the future. Viewpoint 1 asserts that the traditional dental practice patterns of the past are shifting as many younger dentists gravitate toward employed positions in large group practices or the public sector. Although educational debt is relevant in predicting graduates' practice choices, other variables such as gender, race, and work-life balance play critical roles as well. Societal characteristics demonstrated by aging Gen Xers and those in the Millennial generation blend seamlessly with the opportunities DMGPs offer their employees. Viewpoint 2 contends the traditional model of dental care delivery-allowing entrepreneurial practitioners to make decisions in an autonomous setting-is changing but not to the degree nor as rapidly as Viewpoint 1 professes. Millennials entering the dental profession, with characteristics universally attributed to their generation, see value in the independence and flexibility that a traditional practice allows. Although DMGPs provide dentists one option for practice, several alternative delivery models offer current dentists and future dental school graduates many of the advantages of DMGPs while allowing them to maintain the independence and freedom a traditional practice provides.

Generation unit selection via capital asset pricing model for generation planning

Energy Technology Data Exchange (ETDEWEB)

Cahyadi, Romy; Jo Min, K. [College of Engineering, Ames, IA (United States); Chunghsiao Wang [LG and E Energy Corp., Louisville, KY (United States); Abi-Samra, Nick [Electric Power Research Inst., Palo Alto, CA (United States)

2003-07-01

The electric power industry in many parts of U.S.A. is undergoing substantial regulatory and organizational changes. Such changes introduce substantial financial risk in generation planning. In order to incorporate the financial risk into the capital investment decision process of generation planning, in this paper, we develop and analyse a generation unit selection process via the capital asset pricing model (CAPM). In particular, utilizing realistic data on gas-fired, coal-fired, and wind power generation units, we show which and how concrete steps can be taken for generation planning purposes. It is hoped that the generation unit selection process developed in this paper will help utilities in the area of effective and efficient generation planning when financial risks are considered. (Author)

Teoretisk och praktisk genomgång av IPv6 och dess säkerhetsaspekter

OpenAIRE

Andersson, David

2012-01-01

Den här uppsatsen går teoretiskt och praktiskt igenom IPv6 för att skapa en förståelse för det nya protokollet. Uppsatsen beskriver utöver den teoretiska genomgången av protokollet även det praktiska arbete som ligger bakom implementationen som är tänkt att kunna ge såväl privatpersoner som mindre organisationer tillgång till en säker IPv6 lösning även om Internetleverantören endast kan erbjuda IPv4.   Arbetet är gjort på eget initiativ då behovet av kunskap kring IPv6 växer lavinartat och då...

Hur hotellgäster väljer att ta ton & vad vill de egentligen ha? : En kvantitativ studie om gästers uppfattning av service recovery inom hotellbranschen.

OpenAIRE

Nilsson, Caroline; Sundholm, Matilda

2015-01-01

Hotellbranschen är en bransch som ständigt expanderar. Även om beläggningsgraden på hotellen inte ökar avsevärt växer antalet övernattningar på hotell vilket tyder på en ökad konkurrensbild på marknaden. Samtidigt fokuserar tjänsteföretagen alltmer på företagets personalresurser och att kunna erbjuda något utöver kärntjänsten för att differentiera företagets position på marknaden. På ett hotell där hotellrummen är den huvudsakliga tjänsten läggs ett allt större f...

Solar thermoelectric generator

Science.gov (United States)

Toberer, Eric S.; Baranowski, Lauryn L.; Warren, Emily L.

2016-05-03

Solar thermoelectric generators (STEGs) are solid state heat engines that generate electricity from concentrated sunlight. A novel detailed balance model for STEGs is provided and applied to both state-of-the-art and idealized materials. STEGs can produce electricity by using sunlight to heat one side of a thermoelectric generator. While concentrated sunlight can be used to achieve extremely high temperatures (and thus improved generator efficiency), the solar absorber also emits a significant amount of black body radiation. This emitted light is the dominant loss mechanism in these generators. In this invention, we propose a solution to this problem that eliminates virtually all of the emitted black body radiation. This enables solar thermoelectric generators to operate at higher efficiency and achieve said efficient with lower levels of optical concentration. The solution is suitable for both single and dual axis solar thermoelectric generators.

Generating Units

Data.gov (United States)

Department of Homeland Security — Generating Units are any combination of physically connected generators, reactors, boilers, combustion turbines, and other prime movers operated together to produce...

Understanding portable generators

Energy Technology Data Exchange (ETDEWEB)

Hills, A.; Hawkins, B. [Guelph Univ., ON (Canada); Clarke, S. [Ontario Ministry of Agriculture, Food and Rural Affairs, Toronto, ON (Canada)

2000-06-01

This factsheet is intended to help consumers select a small portable generator for emergency electrical needs. Interest in standby generators has been heightened ever since the prolonged power outage in Eastern Ontario and Southwestern Quebec during the 1998 ice storm and the concern over Y2K related outages. Farmers, in particular, have been reassessing their need for emergency electrical power supply. This document presents some of the factors that should be considered when purchasing and operating a portable generator in the 3 to 12 kW size. It provides a detailed review of power quality and describes the use of tractor-driven power-take-off generators of 15 kW and larger. Several manufacturers make portable generators in many sizes with a whole range of features. This document includes a table depicting generator Feature/Benefit analysis to help consumers understand the differences between features and benefits. A second table provides a check list for generator feature/benefits. Specific details for the operations of various generators are available from manufacturers, distributors and electrical contractors. 2 tabs., 1 fig.

Generativity Does Not Necessarily Satisfy All Your Needs: Associations among Cultural Demand for Generativity, Generative Concern, Generative Action, and Need Satisfaction in the Elderly in Four Cultures

Science.gov (United States)

Hofer, Jan; Busch, Holger; Au, Alma; Polácková Šolcová, Iva; Tavel, Peter; Tsien Wong, Teresa

2016-01-01

The present study examines the association between various facets of generativity, that is, cultural demand for generativity, generative concern, and generative action, with the satisfaction of the needs for relatedness, competence, and autonomy in samples of elderly from Cameroon, China (Hong Kong), the Czech Republic, and Germany. Participants…

Knowing Generation Y: a new generation of nurses in practice.

Science.gov (United States)

Chung, Stephanie M

Generation Y is commonly defined as those people born between 1980 and 2000, now aged in their 20s and 30s. Their grandparents experienced post-World War II reconstruction, their parents the economic boom of the 1980s. There are currently 81 million individuals in the Generation Y cohort in the USA, making it the second-largest, and possibly most influential, cohort since World War II (Manion, 2009). Members of Generation Y are diverse, technologically advanced and vocal about their opinions. They tend to resist traditional hierarchy, want recognition/reward for achievements and distrust institutions. Knowing these characteristics is useful for nurse managers, preceptors and team members working with members of Generation Y. Studies have proven that Generation Y is challenging the nursing workforce through rapid turnover (Cogin, 2012). This article explores a theoretical model that predicts retention and/or turnover of nurses in light of Generation Y behaviours and motivators-for example, moving from agency to agency rather than devoting many years to a single practice. Further research is needed to find out whether these behaviours and motivators are unique to Generation Y alone.

FlexibleSUSY-A spectrum generator generator for supersymmetric models

Science.gov (United States)

Athron, Peter; Park, Jae-hyeon; Stöckinger, Dominik; Voigt, Alexander

2015-05-01

We introduce FlexibleSUSY, a Mathematica and C++ package, which generates a fast, precise C++ spectrum generator for any SUSY model specified by the user. The generated code is designed with both speed and modularity in mind, making it easy to adapt and extend with new features. The model is specified by supplying the superpotential, gauge structure and particle content in a SARAH model file; specific boundary conditions e.g. at the GUT, weak or intermediate scales are defined in a separate FlexibleSUSY model file. From these model files, FlexibleSUSY generates C++ code for self-energies, tadpole corrections, renormalization group equations (RGEs) and electroweak symmetry breaking (EWSB) conditions and combines them with numerical routines for solving the RGEs and EWSB conditions simultaneously. The resulting spectrum generator is then able to solve for the spectrum of the model, including loop-corrected pole masses, consistent with user specified boundary conditions. The modular structure of the generated code allows for individual components to be replaced with an alternative if available. FlexibleSUSY has been carefully designed to grow as alternative solvers and calculators are added. Predefined models include the MSSM, NMSSM, E6SSM, USSM, R-symmetric models and models with right-handed neutrinos.

FOREIGN ECONOMIC AFFAIRS INTERNATIONALIZATION BY FRANCHISING OPERATIONS

OpenAIRE

Lorena POPESCU DUDUIALĂ

2010-01-01

Nowadays, franchise is the way to do business at the fastest pace in the world. More than 600,000 franchise business activities are spread all over the American continent generating sales of one trillion dollars. Over 40% of the US retail trade in products and services are achieved by franchises. A new franchise opens somewhere in the US every 12 minutes. Franchise is surely the success story of this decade. Romania is represented on this list by 171 franchise ne...

Memories of vacant lots: how and why residents used informal urban green space as children and teenagers in Brisbane, Australia, and Sapporo, Japan

OpenAIRE

Rupprecht, Christoph D. D; Byrne, Jason A.; Lo, Alex Y.

2015-01-01

Contact with nature is vital for the development of children and teenagers. In the past, informal urban green spaces (IGS) such as vacant lots appear to have been used for such purposes. We need to better understand how previous generations used IGS to make sure young people today can also enjoy its social, mental, emotional and physical health benefits. This study quantitatively compared adult residents' memories of IGS use in their childhood and teenage years in two geographically and cultu...

Generator for radionuclide

International Nuclear Information System (INIS)

Weisner, P.S.; Forrest, T.R.F.

1985-01-01

This invention provides a radionuclide generator of the kind in which a parent radionuclide, adsorbed on a column of particulate material, generates a daughter radionuclide which is periodically removed from the column. This invention is particularly concerned with technetium generators using single collection vials. The generator comprises a column, a first reservoir for the eluent, a second reservoir to contain the volume of eluent required for a single elution, and means connecting the first reservoir to the second reservoir and the second reservoir to the column. Such a generator is particularly suitable for operation by vacuum elution

Advancing the CANDU reactor: From generation to generation

International Nuclear Information System (INIS)

Hopwood, Jerry; Duffey, Romney B.; Yu, Steven; Torgerson, Dave F.

2006-01-01

Emphasizing safety, reliability and economics, the CANDU reactor development strategy is one of continuous improvement, offering value and assured support to customers worldwide. The Advanced CANDU Reactor (ACR-1000) generation, designed by Atomic Energy of Canada Limited (AECL), meets the new economic expectation for low-cost power generation with high capacity factors. The ACR is designed to meet customer needs for reduced capital cost, shorter construction schedule, high plant capacity factor, low operating cost, increased operating life, simple component replacement, enhanced safety features, and low environmental impact. The ACR-1000 design evolved from the internationally successful medium-sized pressure tube reactor (PTR) CANDU 6 and incorporates operational feedback from eight utilities that operate 31 CANDU units. This technical paper provides a brief description of the main features of the ACR-1000, and its major role in the development path of the generations of the pressure tube reactor concept. The motivation, philosophy and design approach being taken for future generation of CANDU pressure tube reactors are described

The Perceived Work Ethic of K-12 Teachers by Generational Status: Generation X vs. Baby Boom Generation

Science.gov (United States)

Petty, Gregory C.

2013-01-01

This was an investigation of the work ethic of K-12 educators from Generation X and Baby Boomer generations. Teachers of the baby boom generation were born between 1946 and 1964, and many are beginning to retire. There is an impending teacher shortage due to the large numbers of this group retiring or leaving the profession. School administrators…

Steam generator life cycle management: Ontario Power Generation (OPG) experience

International Nuclear Information System (INIS)

Maruska, C.C.

2002-01-01

A systematic managed process for steam generators has been implemented at Ontario Power Generation (OPG) nuclear stations for the past several years. One of the key requirements of this managed process is to have in place long range Steam Generator Life Cycle Management (SG LCM) plans for each unit. The primary goal of these plans is to maximize the value of the nuclear facility through safe and reliable steam generator operation over the expected life of the units. The SG LCM plans integrate and schedule all steam generator actions such as inspection, operation, maintenance, modifications, repairs, assessments, R and D, performance monitoring and feedback. This paper discusses OPG steam generator life cycle management experience to date, including successes, failures and how lessons learned have been re-applied. The discussion includes relevant examples from each of the operating stations: Pickering B and Darlington. It also includes some of the experience and lessons learned from the activities carried out to refurbish the steam generators at Pickering A after several years in long term lay-up. The paper is structured along the various degradation modes that have been observed to date at these sites, including monitoring and mitigating actions taken and future plans. (author)

Radio-isotope generator

International Nuclear Information System (INIS)

Benjamins, H.M.

1983-01-01

A device is claimed for interrupting an elution process in a radioisotope generator before an elution vial is entirely filled. The generator is simultaneously exposed to sterile air both in the direction of the generator column and of the elution vial

Limitations of widely used high-risk human papillomavirus laboratory-developed testing in cervical cancer screening

Directory of Open Access Journals (Sweden)

Naryshkin S

2012-11-01

Full Text Available Sonya Naryshkin,1 R Marshall Austin21Department of Pathology, Mercy Health System, Janesville, WI; 2Department of Pathology, Magee-Womens Hospital of University of Pittsburgh Medical Center, Pittsburgh, PA, USAObjective: To increase awareness of the limitations of high-risk human papillomavirus (hrHPV laboratory-developed testing (LDT widely used in US cervical cancer screening.Methods and results: A young woman in her 30s was diagnosed and treated for stage 1B1 cervical squamous cell carcinoma in which HPV 16 DNA was detected using polymerase chain reaction testing. Both 1 month before and 42 months before cervical cancer diagnosis, the patient had highly abnormal cytology findings; however, residual SurePath™ (Becton, Dickson and Company, Franklin Lakes, NJ vial fluid yielded negative Hybrid Capture 2 (HC2; Qiagen NV, Hilden, Germany hrHPV LDT results from each of the two specimens. This prompted questions to be asked concerning the performance characteristics of hrHPV LDT. A review of the available data indicates that (1 purification of DNA from SurePath specimens requires complex sample preparation due to formaldehyde crosslinking of proteins and nucleic acids, (2 HC2–SurePath hrHPV testing had not been Food and Drug Administration-approved after multiple premarket approval submissions, (3 detectible hrHPV DNA in the SurePath vial decreases over time, and (4 US laboratories performing HC2–SurePath hrHPV LDT testing are not using a standardized manufacturer-endorsed procedure.Conclusion: Recently updated cervical screening guidelines in the US recommend against the use of hrHPV LDT in cervical screening, including widely used HC2 testing from the SurePath vial. The manufacturer recently issued a technical bulletin specifically warning that use of SurePath samples with the HC2 hrHPV test may provide false negative results and potentially compromise patient safety. Co-collection using a Food and Drug Administration-approved hrHPV test

Experimental Testing of a Van De Graaff Generator as an Electromagnetic Pulse Generator

Science.gov (United States)

2016-07-01

EXPERIMENTAL TESTING OF A VAN DE GRAAFF GENERATOR AS AN ELECTROMAGNETIC PULSE GENERATOR THESIS...protection in the United States AFIT-ENP-MS-16-S-075 EXPERIMENTAL TESTING OF A VAN DE GRAAFF GENERATOR AS AN ELECTROMAGNETIC PULSE GENERATOR...RELEASE; DISTRIBUTION UNLIMITED. AFIT-ENP-MS-16-S-075 EXPERIMENTAL TESTING OF A VAN DE GRAAFF GENERATOR AS AN ELECTROMAGNETIC PULSE GENERATOR

GeneratorSE: A Sizing Tool for Variable-Speed Wind Turbine Generators

Energy Technology Data Exchange (ETDEWEB)

Sethuraman, Latha [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Dykes, Katherine L [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

2017-09-22

This report documents a set of analytical models employed by the optimization algorithms within the GeneratorSE framework. The initial values and boundary conditions employed for the generation of the various designs and initial estimates for basic design dimensions, masses, and efficiency for the four different models of generators are presented and compared with empirical data collected from previous studies and some existing commercial turbines. These models include designs applicable for variable-speed, high-torque application featuring direct-drive synchronous generators and low-torque application featuring induction generators. In all of the four models presented, the main focus of optimization is electromagnetic design with the exception of permanent-magnet and wire-wound synchronous generators, wherein the structural design is also optimized. Thermal design is accommodated in GeneratorSE as a secondary attribute by limiting the winding current densities to acceptable limits. A preliminary validation of electromagnetic design was carried out by comparing the optimized magnetic loading against those predicted by numerical simulation in FEMM4.2, a finite-element software for analyzing electromagnetic and thermal physics problems for electrical machines. For direct-drive synchronous generators, the analytical models for the structural design are validated by static structural analysis in ANSYS.

HTGR steam generator development

International Nuclear Information System (INIS)

Schuetzenduebel, W.G.; Hunt, P.S.; Weber, M.

1976-01-01

More than 40 gas-cooled reactor plants have produced in excess of 400 reactor years of operating experience which have proved a reasonably high rate of gas-cooled reactor steam generator availability. The steam generators used in these reactors include single U-tube and straight-tube steam generators as well as meander type and helically wound or involute tube steam generators. It appears that modern reactors are being equipped with helically wound steam generators of the once-through type as the end product of steam generator evolution in gas-cooled reactor plants. This paper provides a general overview of gas-cooled reactor steam generator evolution and operating experience and shows how design criteria and constraints, research and development, and experience data are factored into the design/development of modern helically wound tube steam generators for the present generation of gas-cooled reactors

Distributed generation - customer owned generation - Duke Energy case study

Energy Technology Data Exchange (ETDEWEB)

Iung, Anderson M. [Duke Energy International, Geracao Paranapanema S.A., SP (Brazil). Market Analysis Dept.; Ribeiro, Paulo F. [Calvin College, Grand Rapids, MI (United States); Oliveira, A.R. [Centro Federal de Educacao Tecnologica de Minas Gerais (CEFET-MG), Belo Horizonte, MG (Brazil)

2009-07-01

Distributed generation (DG) is getting more attractive. Although unit costs show strong economies of scale for all generation technology types, there is a potential niche market for DG technology to drive growth in addition to environmental concern issues. Duke Energy encourages the installation of cost effective small scale costumer owned generation. The objective of this article is to evaluate some aspects of DG connection in the Duke's distribution system regarding power quality, voltage stability, system protection, power balance control policy and the economical viability. (author)

Comparing Generation X and Generation Y on their preferred emotional leadership style

OpenAIRE

Kraus, Markus

2017-01-01

Research Question: What are the differences and similarities between employees of Generation X and Gen-eration Y and do these generations prefer different emotional leadership styles? Methods: Empirical study across different organizations using an online survey to examine potential dif-ferences in the emotional leadership style preferences of Generation X and Y. Results: The results of the theoretical part demonstrate an increasing tendency of similarities between Generation X and Y with res...

Compact neutron generator

Science.gov (United States)

Leung, Ka-Ngo; Lou, Tak Pui

2005-03-22

A compact neutron generator has at its outer circumference a toroidal shaped plasma chamber in which a tritium (or other) plasma is generated. A RF antenna is wrapped around the plasma chamber. A plurality of tritium ion beamlets are extracted through spaced extraction apertures of a plasma electrode on the inner surface of the toroidal plasma chamber and directed inwardly toward the center of neutron generator. The beamlets pass through spaced acceleration and focusing electrodes to a neutron generating target at the center of neutron generator. The target is typically made of titanium tubing. Water is flowed through the tubing for cooling. The beam can be pulsed rapidly to achieve ultrashort neutron bursts. The target may be moved rapidly up and down so that the average power deposited on the surface of the target may be kept at a reasonable level. The neutron generator can produce fast neutrons from a T-T reaction which can be used for luggage and cargo interrogation applications. A luggage or cargo inspection system has a pulsed T-T neutron generator or source at the center, surrounded by associated gamma detectors and other components for identifying explosives or other contraband.

Microwatt thermoelectric generator

International Nuclear Information System (INIS)

Goslee, D.E.

1976-01-01

A microwatt thermoelectric generator suitable for implanting in the body is described. The disclosed generator utilizes a nuclear energy source. Provision is made for temporary electrical connection to the generator for testing purposes, and for ensuring that the heat generated by the nuclear source does not bypass the pile. Also disclosed is a getter which is resistant to shrinkage during sintering, and a foil configuration for controlling the radiation of heat from the nuclear source to the hot plate of the pile

Microwatt thermoelectric generator

International Nuclear Information System (INIS)

Goslee, D.E.; Bustard, T.S.

1976-01-01

A microwatt thermoelectric generator suitable for implanting in the body is described. The generator utilizes a nuclear energy source. Provision is made for temporary electrical connection to the generator for testing purposes, and for ensuring that the heat generated by the nuclear source does not bypass the pile. Also disclosed is a getter which is resistant to shrinkage during sintering, and a foil configuration for controlling the radiation of heat from the nuclear source to the hot plate of the pile

Third generation coaching

DEFF Research Database (Denmark)

Stelter, Reinhard

2014-01-01

Third generation coaching unfolds a new universe for coaching and coaching psychology in the framework of current social research, new learning theories and discourses about personal leadership. Third generation coaching views coaching in a societal perspective. Coaching has become important...... transformation. Coaching thus facilitates new reflections and perspectives, as well as empowerment and support for self-Bildung processes. Third generation coaching focuses on the coach and the coachee in their narrative collaborative partnership. Unlike first generation coaching, where the goal is to help...

Experiment of Neutron Generation by Using Prototype D-D Neutron Generator

International Nuclear Information System (INIS)

Kim, In Jung; Kim, Suk Kwon; Park, Chang Su; Jung, Nam Suk; Jung, Hwa Dong; Park, Ji Young; Hwang, Yong Seok; Choi, H.D.

2005-01-01

Experiment of neutron generation was performed by using a prototype D-D neutron generator. The characteristics of D-D neutron generation in drive-in target was studied. The increment of neutron yield by increasing ion beam energy was investigated, too

Magnetic field generation device for magnetohydrodynamic electric power generation

International Nuclear Information System (INIS)

Kuriyama, Yoshihiko.

1993-01-01

An existent magnetic field generation device for magnetohydrodynamic electric power generation comprises at least a pair of permanent magnets disposed to an inner circumferential surface of a yoke having such a cross sectional area that two pairs of parallel sides are present, in which different magnetic poles are opposed while interposing a flow channel for a conductive fluid therebetween. Then, first permanent magnets which generate main magnetic fields are disposed each at a gap sandwiching a plane surface including a center axis of a flow channel for the conductive fluid. Second permanent magnets which generate auxiliary magnetic fields are disposed to an inner circumferential surface of a yoke intersecting the yoke to which the first permanent magnets are disposed. The magnetic poles on the side of the flow channel for the second permanent magnets have identical polarity with that of the magnetic poles of the adjacent first permanent magnets. As a result, a magnetic flux density in the flow channel for the conductive fluid can be kept homogeneous and at a high level from a position of the axial line of the flow channel to the outer circumference, thereby enabling to remarkably improve a power generation efficiency. (N.H.)

Evaluation of the efficiency and fault density of software generated by code generators

Science.gov (United States)

Schreur, Barbara

1993-01-01

Flight computers and flight software are used for GN&C (guidance, navigation, and control), engine controllers, and avionics during missions. The software development requires the generation of a considerable amount of code. The engineers who generate the code make mistakes and the generation of a large body of code with high reliability requires considerable time. Computer-aided software engineering (CASE) tools are available which generates code automatically with inputs through graphical interfaces. These tools are referred to as code generators. In theory, code generators could write highly reliable code quickly and inexpensively. The various code generators offer different levels of reliability checking. Some check only the finished product while some allow checking of individual modules and combined sets of modules as well. Considering NASA's requirement for reliability, an in house manually generated code is needed. Furthermore, automatically generated code is reputed to be as efficient as the best manually generated code when executed. In house verification is warranted.

Conceptualizing Media Generations: the Print-, Online- and Individualized Generations

DEFF Research Database (Denmark)

Westlund, Oscar; A Färdigh, Mathias

2012-01-01

During the 1990s news publishers established an online presence and in the 2000s they developed cross-media news work. This has resulted in changing news accessing habits, with varied magnitude among generations. This article aims to construct theoretically sound news media generations, through...... statistical analysis of data from a nationally representative scientific omnibus survey conducted in 2010. Firstly the article presents a descriptive and explanatory analysis of how eight generational cohorts utilize news in print and/or online and/or mobile. Secondly these findings are used for merging...... highest of online only news accessing (Pearson’s r = .135). The heterogeneous news usage patterns exhibited by the individualized generation (1980s-1990s) were accommodated for by two cohorts. The online cohort shows high probability for online-only news usage (49%) and a positive correlation (Pearson’s r...

NEGATIVE GATE GENERATOR

Science.gov (United States)

Jones, C.S.; Eaton, T.E.

1958-02-01

This patent relates to pulse generating circuits and more particularly to rectangular pulse generators. The pulse generator of the present invention incorporates thyratrons as switching elements to discharge a first capacitor through a load resistor to initiate and provide the body of a Pulse, and subsequently dlscharge a second capacitor to impress the potential of its charge, with opposite potential polarity across the load resistor to terminate the pulse. Accurate rectangular pulses in the millimicrosecond range are produced across a low impedance by this generator.

Microwatt thermoelectric generator

International Nuclear Information System (INIS)

Hittman, F.; Bustard, T.S.

1976-01-01

A microwatt thermoelectric generator suitable for implanting in the body is described. The generator utilizes a nuclear energy source. Provision is made for temporary electrical connection to the generator for testing purposes, and for ensuring that the heat generated by the nuclear source does not bypass the pile. Also disclosed is a getter which is resistant to shrinkage during sintering, and a foil configuration for controlling the radiation of heat from the nuclear source to the hot plate of the pile. 2 claims, 4 drawing figures

Microwatt thermoelectric generator

International Nuclear Information System (INIS)

Barr, H.N.

1978-01-01

A microwatt thermoelectric generator suitable for implanting in the body is described. The disclosed generator utilizes a nuclear energy source. Provision is made for temporary electrical connection to the generator for testing purposes, and for ensuring that the heat generated by the nuclear source does not bypass the pile. Also disclosed is a getter which is resistant to shrinkage during sintering, and a foil configuration for controlling the radiation of heat from the nuclear source to the hot plate of the pile. 4 claims, 4 figures

Comparison and clinical utility evaluation of four multiple allergen simultaneous tests including two newly introduced fully automated analyzers

Directory of Open Access Journals (Sweden)

John Hoon Rim

2016-04-01

Full Text Available Background: We compared the diagnostic performances of two newly introduced fully automated multiple allergen simultaneous tests (MAST analyzers with two conventional MAST assays. Methods: The serum samples from a total of 53 and 104 patients were tested for food panels and inhalant panels, respectively, in four analyzers including AdvanSure AlloScreen (LG Life Science, Korea, AdvanSure Allostation Smart II (LG Life Science, PROTIA Allergy-Q (ProteomeTech, Korea, and RIDA Allergy Screen (R-Biopharm, Germany. We compared not only the total agreement percentages but also positive propensities among four analyzers. Results: Evaluation of AdvanSure Allostation Smart II as upgraded version of AdvanSure AlloScreen revealed good concordance with total agreement percentages of 93.0% and 92.2% in food and inhalant panel, respectively. Comparisons of AdvanSure Allostation Smart II or PROTIA Allergy-Q with RIDA Allergy Screen also showed good concordance performance with positive propensities of two new analyzers for common allergens (Dermatophagoides farina and Dermatophagoides pteronyssinus. The changes of cut-off level resulted in various total agreement percentage fluctuations among allergens by different analyzers, although current cut-off level of class 2 appeared to be generally suitable. Conclusions: AdvanSure Allostation Smart II and PROTIA Allergy-Q presented favorable agreement performances with RIDA Allergy Screen, although positive propensities were noticed in common allergens. Keywords: Multiple allergen simultaneous test, Automated analyzer

Steam generator

International Nuclear Information System (INIS)

Fenet, J.-C.

1980-01-01

Steam generator particularly intended for use in the coolant system of a pressurized water reactor for vaporizing a secondary liquid, generally water, by the primary cooling liquid of the reactor and comprising special arrangements for drying the steam before it leaves the generator [fr

Logarithmic-function generator

Science.gov (United States)

Caron, P. R.

1975-01-01

Solid-state logarithmic-function generator is compact and provides improved accuracy. Generator includes a stable multivibrator feeding into RC circuit. Resulting exponentially decaying voltage is compared with input signal. Generator output is proportional to time required for exponential voltage to decay from preset reference level to level of input signal.

Composite electric generator equipped with steam generator for heating reactor coolant

International Nuclear Information System (INIS)

Watabe, Masaharu; Soman, Yoshindo; Kawanishi, Kohei; Ota, Masato.

1997-01-01

The present invention concerns a composite electric generator having coolants, as a heating source, of a PWR type reactor or a thermonuclear reactor. An electric generator driving gas turbine is disposed, and a superheater using a high temperature exhaust gas of the gas turbine as a heating source is disposed, and main steams are superheated by the superheater to elevate the temperature at the inlet of the turbine. This can increase the electric generation capacity as well as increase the electric generation efficiency. In addition, since the humidity in the vicinity of the exit of the steam turbine is reduced, occurrence of loss and erosion can be suppressed. When cooling water of the thermonuclear reactor is used, the electric power generated by the electric generator driven by the gas turbine can be used upon start of the thermonuclear reactor, and it is not necessary to dispose a large scaled special power source in the vicinity, which is efficient. (N.H.)

Quantum random number generator

Science.gov (United States)

Pooser, Raphael C.

2016-05-10

A quantum random number generator (QRNG) and a photon generator for a QRNG are provided. The photon generator may be operated in a spontaneous mode below a lasing threshold to emit photons. Photons emitted from the photon generator may have at least one random characteristic, which may be monitored by the QRNG to generate a random number. In one embodiment, the photon generator may include a photon emitter and an amplifier coupled to the photon emitter. The amplifier may enable the photon generator to be used in the QRNG without introducing significant bias in the random number and may enable multiplexing of multiple random numbers. The amplifier may also desensitize the photon generator to fluctuations in power supplied thereto while operating in the spontaneous mode. In one embodiment, the photon emitter and amplifier may be a tapered diode amplifier.

Validering av vattenkraftmodeller i ARISTO

OpenAIRE

Lundbäck, Maja

2013-01-01

This master thesis was made to validate hydropower models of a turbine governor, Kaplan turbine and a Francis turbine in the power system simulator ARISTO at Svenska Kraftnät. The validation was made in three steps. The first step was to make sure the models was implement correctly in the simulator. The second was to compare the simulation results from the Kaplan turbine model to data from a real hydropower plant. The comparison was made to see how the models could generate simulation result ...

Hydrogen generator characteristics for storage of renewably-generated energy

International Nuclear Information System (INIS)

Kotowicz, Janusz; Bartela, Łukasz; Węcel, Daniel; Dubiel, Klaudia

2017-01-01

The paper presents a methodology for determining the efficiency of a hydrogen generator taking the power requirements of its auxiliary systems into account. Authors present results of laboratory experiments conducted on a hydrogen generator containing a PEM water electrolyzer for a wide range of device loads. On the basis of measurements, the efficiency characteristics of electrolyzers were determined, including that of an entire hydrogen generator using a monitored power supply for its auxiliary devices. Based on the results of the experimental tests, the authors have proposed generalized characteristics of hydrogen generator efficiency. These characteristics were used for analyses of a Power-to-Gas system cooperating with a 40 MW wind farm with a known yearly power distribution. It was assumed that nightly-produced hydrogen is injected into the natural gas transmission system. An algorithm for determining the thermodynamic and economic characteristics of a Power-to-Gas installation is proposed. These characteristics were determined as a function of the degree of storage of the energy produced in a Renewable Energy Sources (RES) installation, defined as the ratio of the amount of electricity directed to storage to the annual amount of electricity generated in the RES installation. Depending on the degree of storage, several quantities were determined. - Highlights: • The efficiency characteristics of PEM electrolyzer are determined. • Generalized characteristics of hydrogen generator efficiency are proposed. • Method of choice of electrolyser nominal power for Power-to-Gas system was proposed. • Development of Power-to-Gas systems requires implementation of support mechanisms.

Sound generator

NARCIS (Netherlands)

Berkhoff, Arthur P.

2008-01-01

A sound generator, particularly a loudspeaker, configured to emit sound, comprising a rigid element (2) enclosing a plurality of air compartments (3), wherein the rigid element (2) has a back side (B) comprising apertures (4), and a front side (F) that is closed, wherein the generator is provided

Sound generator

NARCIS (Netherlands)

Berkhoff, Arthur P.

2010-01-01

A sound generator, particularly a loudspeaker, configured to emit sound, comprising a rigid element (2) enclosing a plurality of air compartments (3), wherein the rigid element (2) has a back side (B) comprising apertures (4), and a front side (F) that is closed, wherein the generator is provided

Sound generator

NARCIS (Netherlands)

Berkhoff, Arthur P.

2007-01-01

A sound generator, particularly a loudspeaker, configured to emit sound, comprising a rigid element (2) enclosing a plurality of air compartments (3), wherein the rigid element (2) has a back side (B) comprising apertures (4), and a front side (F) that is closed, wherein the generator is provided

Free piston linear generator for low grid power generation

Directory of Open Access Journals (Sweden)

Abdalla Izzeldin

2017-01-01

Full Text Available Generating power is of great importance nowadays across the world. However, recently, the world became aware of the climatic changes due to the greenhouse effect caused by CO2 emissions and began seeking solutions to reduce the negative impact on the environment. Besides, the exhaustion of fossil fuels and their environmental impact, make it is crucial to develop clean energy sources, and efforts are focused on developing and improving the efficiency of all energy consuming systems. The tubular permanent magnet linear generators (TPMLGs are the best candidate for energy converters. Despite being suffering problem of attraction force between permanent magnets and stator teeth, to eliminate such attraction force, ironless-stator could be considered. Thus, they could waive the presence of any magnetic attraction between the moving and stator part. This paper presents the design and analysis of ironless -cored TPMLG for low grid power generation. The main advantages of this generator are the low cogging force and high efficiency. Therefore, the magnetic field computation of the proposed generator has been performed by applying a magnetic vector potential and utilizing a 2-D finite element analysis (FEA. Moreover, the experimental results for the current profile, pressure profile and velocity profile have been presented.

Emotion-driven level generation

OpenAIRE

Togelius, Julian; Yannakakis, Georgios N.

2016-01-01

This chapter examines the relationship between emotions and level generation. Grounded in the experience-driven procedural content generation framework we focus on levels and introduce a taxonomy of approaches for emotion-driven level generation. We then review four characteristic level generators of our earlier work that exemplify each one of the approaches introduced. We conclude the chapter with our vision on the future of emotion-driven level generation.

Design of improved controller for thermoelectric generator used in distributed generation

Energy Technology Data Exchange (ETDEWEB)

Molina, M.G. [CONICET, Instituto de Energia Electrica, Universidad Nacional de San Juan, Av. Libertador San Martin Oeste, 1109, J5400ARL, San Juan (Argentina); Juanico, L.E. [CONICET, Centro Atomico Bariloche, 8400 Bariloche (Argentina); Rinalde, G.F.; Taglialavore, E.; Gortari, S. [Centro Atomico Bariloche, 8400 Bariloche (Argentina)

2010-06-15

This paper investigates the application of thermal generation based on solid-state devices such as thermoelectric generators (TEGs) as a novel technological alternative of distributed generation (DG). The full detailed modeling and the dynamic simulation of a three-phase grid-connected TEG used as a dispersed generator is studied. Moreover, a new control scheme of the TEG is proposed, which consists of a multi-level hierarchical structure and incorporates a maximum power point tracker (MPPT) for better use of the thermal resource. In addition, reactive power compensation of the electric grid is included, operating simultaneously and independently of the active power generation. Validation of models and control schemes is performed by using the MATLAB/Simulink environment. Moreover, a small-scale TEG experimental set-up was employed to demonstrate the accuracy of proposed models. (author)

Generative Semantics.

Science.gov (United States)

King, Margaret

The first section of this paper deals with the attempts within the framework of transformational grammar to make semantics a systematic part of linguistic description, and outlines the characteristics of the generative semantics position. The second section takes a critical look at generative semantics in its later manifestations, and makes a case…

Talkin' 'bout My Generation

Science.gov (United States)

Rickes, Persis C.

2010-01-01

The monikers are many: (1) "Generation Y"; (2) "Echo Boomers"; (3) "GenMe"; (4) the "Net Generation"; (5) "RenGen"; and (6) "Generation Next". One name that appears to be gaining currency is "Millennials," perhaps as a way to better differentiate the current generation from its…

Shin splints - self-care

Science.gov (United States)

... to make sure you do not have a stress fracture. You will also be checked to make sure you do not have ... Pain - shins - self-care; Anterior tibial pain - self-care; Medial tibial stress syndrome - self- ...

Work Values across Generations

Science.gov (United States)

Hansen, Jo-Ida C.; Leuty, Melanie E.

2012-01-01

Mainstream publication discussions of differences in generational cohorts in the workplace suggest that individuals of more recent generations, such as Generation X and Y, have different work values than do individuals of the Silent and Baby Boom generations. Although extant research suggests that age may influence work values, few of the…

TFTR Motor Generator

International Nuclear Information System (INIS)

Murray, J.G.; Bronner, G.; Horton, M.

1977-01-01

A general description is given of 475 MVA pulsed motor generators for TFTR at Princeton Plasma Physics Laboratory. Two identical generators operating in parallel are capable of supplying 950 MVA for an equivalent square pulse of 6.77 seconds and 4,500 MJ at 0.7 power factor to provide the energy for the pulsed electrical coils and heating system for TFTR. The description includes the operational features of the 15,000 HP wound rotor motors driving each generator with its starting equipment and cycloconverter for controlling speed, power factor, and regulating line voltage during load pulsing where the generator speed changes from 87.5 to 60 Hz frequency variation to provide the 4,500 MJ or energy. The special design characteristics such as fatigue stress calculations for 10 6 cycles of operation, forcing factor on exciter to provide regulation, and low generator impedance are reviewed

Radionuclide generators

International Nuclear Information System (INIS)

Lambrecht, R.M.

1983-01-01

The status of radionuclide generators for chemical research and applications related to the life sciences and biomedical research are reviewed. Emphasis is placed upon convenient, efficient and rapid separation of short-lived daughter radionuclides in a chemical form suitable for use without further chemical manipulation. The focus is on the production of the parent, the radiochemistry associated with processing the parent and daughter, the selection and the characteristic separation methods, and yields. Quality control considerations are briefly noted. The scope of this review includes selected references to applications of radionuclide generators in radiopharmaceutical chemistry, and the life sciences, particularly in diagnostic and therapeutic medicine. The 99 Mo-sup(99m)Tc generator was excluded. 202 references are cited. (orig.)

Generational differences in work ethic among 3 generations of registered nurses.

Science.gov (United States)

Jobe, Laura L

2014-05-01

The purpose of this study was to understand if differences in dimensions of work ethic exist among 3 generations of nurses working in an inpatient setting at an acute care facility. Generational differences are linked with increased turnover, with work ethic frequently cited as an important difference. The quantitative, quasi-experimental cross-sectional study recruited inpatient registered nurses from 2 teaching hospitals in a southern US metropolitan area to complete the Multidimensional Work Ethic Profile online. The 285 completed surveys indicated that similarities exist among the 3 generations, with statistically significant differences only in leisure, hard work, and delay of gratification dimensions. Understanding differences in work ethic dimensions could lead to strategies for improving the generational conflict. These results also lead to the conclusion that work ethic differences may not be the cause of the generational conflict among nurses.

Minding the Generation Gap

Science.gov (United States)

Field, John

2011-01-01

Generational conflict is back. After years of relative silence, and mutual ignorance, the young and old are once more at war. With youth unemployment high on the political agenda, the fortunes of the "jobless generation" are being contrasted with those of the "golden generation" of baby boomers, but is one generation really…

Generative Semantics

Science.gov (United States)

Bagha, Karim Nazari

2011-01-01

Generative semantics is (or perhaps was) a research program within linguistics, initiated by the work of George Lakoff, John R. Ross, Paul Postal and later McCawley. The approach developed out of transformational generative grammar in the mid 1960s, but stood largely in opposition to work by Noam Chomsky and his students. The nature and genesis of…

New Generator Technology

Energy Technology Data Exchange (ETDEWEB)

Nielsen, Roy S. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

2015-02-17

New generator technology project is driven by the need to be able to remotely deploy generator technology where it is needed, when it is needed. Both the military and aid programs that provide assistance after disasters could use the ability to deploy energy generation that fits the needs of the situation. Currently, pre-specified generators are deployed, sometime more than half way around the world to provide electricity. Through our Phase-I to Phase III DARPA grant, we will provide a mechanism where a 3d print station and raw materials could be shipped to a deployment site and remotely deployed personnel. These remote personnel can collaborate with engineers at a home location where 3d print plans can be optimized for the remote purpose. The plans can then be sent electronically to the remote location for printing, much like NASA sent the plans for a socket wrench to the International Space Station for printing in . If multiple generators need to be deployed at different remote locations, within miles of each other the printer rig can be moved to print the generators where they are needed. 3d printing is growing in the field of manufacturing. 3d printing has matured to the point where many types of materials are now available for many types of manufacturing. Both magnetic and electrically conductive material materials have recently been developed which can now lead to 3d printing of engines and generators. Our project will provide a successful printer rig that can be remotely deployed, to print a generator design in the field as well as provide a process for deploying the printed generator as well. This Systems Engineering Management Plan(SEMP) will provide the planning required for a Phase I DARPA grant that may also include goals for Phase II and Phase II grants. The SEMP provides a proposed project schedule, references, system engineering processes, specialty engineering system deployment and product support sections. Each section will state how our company

Wind Turbine Generator Efficiency Based on Powertrain Combination and Annual Power Generation Prediction

Directory of Open Access Journals (Sweden)

Dongmyung Kim

2018-05-01

Full Text Available Wind turbine generators are eco-friendly generators that produce electric energy using wind energy. In this study, wind turbine generator efficiency is examined using a powertrain combination and annual power generation prediction, by employing an analysis model. Performance testing was conducted in order to analyze the efficiency of a hydraulic pump and a motor, which are key components, and so as to verify the analysis model. The annual wind speed occurrence frequency for the expected installation areas was used to predict the annual power generation of the wind turbine generators. It was found that the parallel combination of the induction motors exhibited a higher efficiency when the wind speed was low and the serial combination showed higher efficiency when wind speed was high. The results of predicting the annual power generation considering the regional characteristics showed that the power generation was the highest when the hydraulic motors were designed in parallel and the induction motors were designed in series.

Factor Xa generation by computational modeling: an additional discriminator to thrombin generation evaluation.

Directory of Open Access Journals (Sweden)

Kathleen E Brummel-Ziedins

Full Text Available Factor (fXa is a critical enzyme in blood coagulation that is responsible for the initiation and propagation of thrombin generation. Previously we have shown that analysis of computationally generated thrombin profiles is a tool to investigate hemostasis in various populations. In this study, we evaluate the potential of computationally derived time courses of fXa generation as another approach for investigating thrombotic risk. Utilizing the case (n = 473 and control (n = 426 population from the Leiden Thrombophilia Study and each individual's plasma protein factor composition for fII, fV, fVII, fVIII, fIX, fX, antithrombin and tissue factor pathway inhibitor, tissue factor-initiated total active fXa generation was assessed using a mathematical model. FXa generation was evaluated by the area under the curve (AUC, the maximum rate (MaxR and level (MaxL and the time to reach these, TMaxR and TMaxL, respectively. FXa generation was analyzed in the entire populations and in defined subgroups (by sex, age, body mass index, oral contraceptive use. The maximum rates and levels of fXa generation occur over a 10- to 12- fold range in both cases and controls. This variation is larger than that observed with thrombin (3-6 fold in the same population. The greatest risk association was obtained using either MaxR or MaxL of fXa generation; with an ∼2.2 fold increased risk for individuals exceeding the 90(th percentile. This risk was similar to that of thrombin generation(MaxR OR 2.6. Grouping defined by oral contraceptive (OC use in the control population showed the biggest differences in fXa generation; a >60% increase in the MaxR upon OC use. FXa generation can distinguish between a subset of individuals characterized by overlapping thrombin generation profiles. Analysis of fXa generation is a phenotypic characteristic which may prove to be a more sensitive discriminator than thrombin generation among all individuals.

A high-voltage pulse generator for corona plasma generation

NARCIS (Netherlands)

Yan, K.; Heesch, van E.J.M.; Pemen, A.J.M.; Huijbrechts, P.A.H.J.; Gompel, van F.M.; Leuken, van H.E.M.; Matyas, Z.

2002-01-01

This paper discusses a high-voltage pulse generator for producing corona plasma. The generator consists of three resonant charging circuits, a transmission line transformer, and a triggered spark-gap switch. Voltage pulses in the order of 30-100 kV with a rise time of 10-20 ns, a pulse duration of

Generation by Generation Correlation and Path Analysis for Yield ...

African Journals Online (AJOL)

Six advanced generations (F7 - F12) of tomato hybrids were evaluated in the Department of Crop Science Research Farm, University of Nigeria, Nsukka from 2004 to 2008 to estimate the magnitude of character association of yield and yield related attributes in each filial generation. Traits under focus were days to flowering, ...

Distributed generation hits market

International Nuclear Information System (INIS)

Anon.

1997-01-01

The pace at which vendors are developing and marketing gas turbines and reciprocating engines for small-scale applications may signal the widespread growth of distributed generation. Loosely defined to refer to applications in which power generation equipment is located close to end users who have near-term power capacity needs, distributed generation encompasses a broad range of technologies and load requirements. Disagreement is inevitable, but many industry observers associate distributed generation with applications anywhere from 25 kW to 25 MW. Ten years ago, distributed generation users only represented about 2% of the world market. Today, that figure has increased to about 4 or 5%, and probably could settle in the 20% range within a 3-to-5-year period, according to Michael Jones, San Diego, Calif.-based Solar Turbines Inc. power generation marketing manager. The US Energy Information Administration predicts about 175 GW of generation capacity will be added domestically by 2010. If 20% comes from smaller plants, distributed generation could account for about 35 GW. Even with more competition, it's highly unlikely distributed generation will totally replace current market structures and central stations. Distributed generation may be best suited for making market inroads when and where central systems need upgrading, and should prove its worth when the system can't handle peak demands. Typical applications include small reciprocating engine generators at remote customer sites or larger gas turbines to boost the grid. Additional market opportunities include standby capacity, peak shaving, power quality, cogeneration and capacity rental for immediate demand requirements. Integration of distributed generation systems--using gas-fueled engines, gas-fired combustion engines and fuel cells--can upgrade power quality for customers and reduce operating costs for electric utilities

Review of Micro Magnetic Generator

OpenAIRE

Lin DU; Gengchen SHI; Jingjing ZHAO

2014-01-01

This paper discusses the research progress of micro magnetic generator systems. Micro magnetic generator systems convert energy from the environment to electric energy with advantages as high reliability, high power density, long life time and can be applied to extreme environment. This paper summarizes methods for improving generator performance of micro magnetic generator, including rotational magnetic generator, vibrational magnetic generator and hybrid magnetic generator, analyzes and com...

Magnetohydrodynamic (MHD) power generation

International Nuclear Information System (INIS)

Chandra, Avinash

1980-01-01

The concept of MHD power generation, principles of operation of the MHD generator, its design, types, MHD generator cycles, technological problems to be overcome, the current state of the art in USA and USSR are described. Progress of India's experimental 5 Mw water-gas fired open cycle MHD power generator project is reported in brief. (M.G.B.)

Bathroom safety - children

Science.gov (United States)

Well child - bathroom safety ... be put in charge of a younger child's safety. There should be an adult in the bathroom ... sure grandparents, friends, and other caretakers follow bathroom safety guidelines. Make sure your child's daycare also follows ...

Dynamic participation of doubly fed induction generator in automatic generation control

Energy Technology Data Exchange (ETDEWEB)

Bhatt, Praghnesh [Department of Electrical Engineering, Charotar Institute of Technology, Changa, Gujarat-388421 (India); Roy, Ranjit [Department of Electrical Engineering, S.V. National Institute of Technology, Surat, Gujarat-395007 (India); Ghoshal, S.P. [Department of Electrical Engineering, National Institute of Technology, Durgapur, West Bengal-713209 (India)

2011-04-15

Increasing levels of wind generation have resulted in an urgent need for the assessment of their impact on frequency control of power systems. The displacement of conventional generation with wind generation will result in erosion of system frequency. The paper analyzed the dynamic participation of doubly fed induction generator (DFIG) to system frequency responses of two-area interconnected power system having variety of conventional generating units. Frequency control support function responding proportionally to frequency deviation is proposed to take out the kinetic energy of turbine blades in order to improve the frequency response of the system. Impacts of different wind penetrations in the system and varying active power support from wind farm on frequency control have been investigated. Integral gains of AGC loop are optimized through craziness-based particle swarm optimization (CRPSO) in order to have optimal transient responses of area frequencies, tie-line power deviation and DFIG parameters. (author)

[Generation Y in ENT: leading a young generation of doctors].

Science.gov (United States)

Schmidt, K; Meyer, J; Liebeneiner, J; Schmidt, C E; Hüttenbrink, K B

2012-11-01

The shortage of qualified doctors and nurses has led to a competition between hospitals. Analyzing the circumstances of the competition, nurses and doctors of so-called generation Y are important. These employees are mainly female and have different requirements compared to previous generations. Therefore, knowledge of these requirements will become a critical success factor for hospitals in the future. We interviewed medical students in Kiel and Hannover from 2005 to 2011 about the clinical department chosen, the criteria for choosing a specific clinic, and the importance of MD and PhD programs. In addition, we conducted an internet and Medline search for scientific studies on labor shortage, generation Y, and demographics. The data were sorted by main categories and relevance for hospitals. Statistical analyses were performed using descriptive measures. We received 1,097 answers which represents approx. 75% of all students. Sixty-seven percent of the students were female, 33% male. Preferences for departments revealed internal medicine, pediatrics, and anesthesiology as the top three. ENT followed at rank 10. The main criteria for choosing a clinic were working climate, structure and broadness of education, family friendliness, and respect. MD programs were rated 2.6, while PhD programs were rated 3.6. Staff members of Generation Y "live while working" and disagree with hierarchies. Internet and computers are part of their daily routine. Employees of Generation Y challenge leadership in hospitals by increasing demands. However, Generation Y can increase professionalization and competitiveness for hospitals significantly.

Pulse Generator

Science.gov (United States)

Greer, Lawrence (Inventor)

2017-01-01

An apparatus and a computer-implemented method for generating pulses synchronized to a rising edge of a tachometer signal from rotating machinery are disclosed. For example, in one embodiment, a pulse state machine may be configured to generate a plurality of pulses, and a period state machine may be configured to determine a period for each of the plurality of pulses.

Magnetohydrodynamic generation method

International Nuclear Information System (INIS)

Masai, Tadahisa; Ishibashi, Eiichi; Kojima, Akihiro.

1967-01-01

The present invention relates to a magneto-hydrodynamic generation method which increases the conductivity of active gas and the generated energy. In the conventional method of open-cycle magnetohydrodynamic generation, the working fluid does not possess a favorable electric conductivity since the collision cross section is large when the combustion is carried out in a condition of excess oxygen. Furthermore, combustion under a condition of oxygen shortage is uncapable of completely converting the generated energy. The air preheater or boiler is not sufficient to collect the waste gas resulting in damage and other economic disadvantages. In the present invention, the combustion gas caused by excess fuel in the combuster is supplied to the generator as the working gas, to which air or fully oxidized air is added to be reheated. While incomplete gas used for heat collection is not adequate, the unburned damage may be eliminated by combusting again and increasing the gas temperature and heat collection rate. Furthermore, a diffuser is mounted at the rear side of the generator to decrease the gas combustion rate. Thus, even when directly absorbing the preheated fully oxidized air or the ordinary air, the boiler is free from damage caused by combustion delay or impulsive force. (M. Ishida)

Next generation PWR

International Nuclear Information System (INIS)

Tanaka, Toshihiko; Fukuda, Toshihiko; Usui, Shuji

2001-01-01

Development of LWR for power generation in Japan has been intended to upgrade its reliability, safety, operability, maintenance and economy as well as to increase its capacity in order, since nuclear power generation for commercial use was begun on 1970, to steadily increase its generation power. And, in Japan, ABWR (advanced BWR) of the most promising LWR in the world, was already used actually and APWR (advanced PWR) with the largest output in the world is also at a step of its actual use. And, development of the APWR in Japan was begun on 1980s, and is at a step of plan on construction of its first machine at early of this century. However, by large change of social affairs, economy of nuclear power generation is extremely required, to be positioned at an APWR improved development reactor promoted by collaboration of five PWR generation companies and the Mitsubishi Electric Co., Ltd. Therefore, on its development, investigation on effect of change in social affairs on nuclear power stations was at first carried out, to establish a design requirement for the next generation PWR. Here were described on outline, reactor core design, safety concept, and safety evaluation of APWR+ and development of an innovative PWR. (G.K.)

Heat wave generates questions about Ontario's generation capacity

International Nuclear Information System (INIS)

Horne, D.

2005-01-01

Concerns regarding Ontario's power generation capacity were raised following a major blackout which occurred in August 2003. Power demand reached 26,170 MW during the weeks leading to the blackout, forcing the Independent Electricity System Operator (IESO) to ask residents to reduce electricity use during the day. The grid operator had also issued a forecast that Toronto could face rolling blackouts during times of heavy power demand. Ontario power consumption records were set in June and July of 2003 due to a heat wave, with hourly demand exceeding 25,000 MW on 53 occasions. Ontario was forced to import up to 3,400 MW (13 per cent of its power needs) from neighbouring provinces and the United States. During that period, the price of power had risen sharply to over 30 cents a kilowatt hour, although household consumers were still charged in the 5 to 10 cent range per kilowatt hour. However, it was noted that taxpayers will eventually bear the cost of importing power. The IESO noted that importing electricity is cheaper than the generation available in Ontario and that it is more economical to import, based on the market clearing price of all generators. In 2004, the IESO purchased 6 per cent of their electricity from the United States. That figure is expected to increase for 2005. Ontario generators produced 26.9 million MWh more in the summer of 2005 than during the same period in 2004 to meet electricity demand levels. It was noted that although importing power presently meets peak demand, the IESO agrees there is a need for new generation within Ontario. In addition to restarting Ontario's Pickering and Bruce nuclear facilities, more than 3,300 MW of new gas-fired generation is under construction or approved, and more than 9,000 MW are in various stages of approval. This paper discussed the effect of high energy costs on industry and Ontario's ability to meet future electricity demand in comparison to neighbouring jurisdictions. Issues regarding grid maintenance

Study of entropy generation in a slab with non-uniform internal heat generation

Directory of Open Access Journals (Sweden)

El Haj Assad Mamdouh

2013-01-01

Full Text Available Analysis of entropy generation in a rectangular slab with a nonuniform internal heat generation is presented. Dimensionless local and total entropy generation during steady state heat conduction through the slab are obtained. Two different boundary conditions have been considered in the analysis, the first with asymmetric convection and the second with constant slab surface temperature. Temperature distribution within the slab is obtained analytically. The study investigates the effect of some relevant dimensionless heat transfer parameters on entropy generation. The results show that there exists a minimum local entropy generation but there does not exist a minimum total entropy generation for certain combinations of the heat transfer parameters. The results of calculations are presented graphically.

HARMONISATION OF EUROPEAN CONTRACT LAW: SLOWLY BUT SURELY?

Directory of Open Access Journals (Sweden)

GEMA TOMÁS

2013-05-01

Full Text Available This paper deals with the harmonisation of European Contract Law from a gradual point of view. The main objective is to show the different academic and official steps carried out in this field. The so called Commission on European Contract Law under the leadership of Professor Ole Lando was the starting point in 1982. Some international research teams set up by European scholars and lawyers have been devoted to this aim for two decades. Time and effort have been made in the academic level to get a serious advance on bringing closer contractual national rules. This bottom-up approach met a stronger support in the last years although the European Parliament had “requested” the creation of a European Civil Code already in 1989. The momentous time comes in 2010 with a Green Paper from the European Commission on policy options for progress towards a European Contract Law for consumers and businesses. This Green Paper opened a public consultation period in 2011 and afterwards an expert group was appointed to draft a feasibility study for a future Instrument in European Contract Law. After all, a Proposal for a Regulation of the European Parliament and of the Council on a Common European Sales Law was adopted in October 2011 arising not few doubts, worries and misgivings from different points of view. This will be not the last step in this process.

E-Commerce Comes Slowly But Surely to Education.

Science.gov (United States)

Revenaugh, Mickey

2000-01-01

Discusses why e-commerce is being used so sparingly by big business and school purchasers alike, the benefits on going on-line for school buyers, and the integration of e-commerce with the district's accounting and management information systems. Available online services are detailed. (GR)

Digitization: surely it can’t be that difficult?

Directory of Open Access Journals (Sweden)

David Walsh

2013-11-01

Full Text Available With some five million collections items comprising art, film, photographs, sound, new media, writings and objects, the possibilities which digitization opens up for the Imperial War Museums (IWM are only limited by the imagination: new ways of reaching and engaging with audiences, slicker commercial activities, online access to superbly restored film and photographic images. But without the financial clout of a Google-style business, and where systems and standards are still very much in development, heritage institutions struggle to bridge the gulf between aspiration and reality. Hiding behind the term digitization lies a mass of activities and responsibilities, all critical to its success. With several years of experience of digitizing anything from posters to motion picture film, and of capturing high-quality digital images of a range of objects from medals to missiles, IWM has now learnt, often the hard way, most of the lessons.

Analisis Perbandingan Karakteristik Berbeban Generator Arus Searah Penguatan Bebas Dengan Generator Arus Searah Penguatan Shunt

OpenAIRE

Ardian S., Randy Niko

2010-01-01

Berdasarkan cara memberikan fluks pada kumparan medannya, generator DC dikelompokkan menjadi dua yaitu generator berpenguatan bebas dan generator berpenguatan sendiri. Karakteristik yang ada pada generator DC antara lain karakteristik beban nol, karakterik berbeban, dan karakteristik luar. Pada karakteristik berbeban sebuah generator DC menunjukkan bagaimana hubungan antara tegangan terminal Vt dan arus medan If ketika generator dibebani. Bila generator dibebani maka akan mengalir arus beb...

Cue generation and memory construction in direct and generative autobiographical memory retrieval.

Science.gov (United States)

Harris, Celia B; O'Connor, Akira R; Sutton, John

2015-05-01

Theories of autobiographical memory emphasise effortful, generative search processes in memory retrieval. However recent research suggests that memories are often retrieved directly, without effortful search. We investigated whether direct and generative retrieval differed in the characteristics of memories recalled, or only in terms of retrieval latency. Participants recalled autobiographical memories in response to cue words. For each memory, they reported whether it was retrieved directly or generatively, rated its visuo-spatial perspective, and judged its accompanying recollective experience. Our results indicated that direct retrieval was commonly reported and was faster than generative retrieval, replicating recent findings. The characteristics of directly retrieved memories differed from generatively retrieved memories: directly retrieved memories had higher field perspective ratings and lower observer perspective ratings. However, retrieval mode did not influence recollective experience. We discuss our findings in terms of cue generation and content construction, and the implication for reconstructive models of autobiographical memory. Copyright © 2015 Elsevier Inc. All rights reserved.

Constraint on the QED vertex from the mass anomalous dimension γm = 1

International Nuclear Information System (INIS)

Bashir, A.; Pennington, M.R.

1995-10-01

We discuss the structure of the non-perturbative fermion-boson vertex in quenched QED. We show that it is possible to construct a vertex which not only ensures that the fermion propagator is multiplicatively renormalizable, obeys the appropriate Ward-Takahashi identity, reproduces perturbation theory for weak couplings and guarantees that the critical coupling at which the mass is dynamically generated is gauge independent but also makes sure that the value for the anomalous dimension for the mass function is strictly 1, as Holdom and Mahanta have proposed. (author). 8 refs

Clairvoyance in cats: or eight good reasons to publish before writing up your thesis

OpenAIRE

Allen, Rory

2008-01-01

After a hard day testing participants and worrying about how to analyze the data, the last thing most of us want to think about is generating more work. Here we are, wanting to make the process of becoming “Dr X” as short as possible. Surely a straight line is the shortest distance between two points?\\ud \\ud Yet sometimes things are not so simple. It could seem like a diversion of time and effort from the direct path to a PhD, but writing up findings for journal publication can bring a lot of...

Digital random-number generator

Science.gov (United States)

Brocker, D. H.

1973-01-01

For binary digit array of N bits, use N noise sources to feed N nonlinear operators; each flip-flop in digit array is set by nonlinear operator to reflect whether amplitude of generator which feeds it is above or below mean value of generated noise. Fixed-point uniform distribution random number generation method can also be used to generate random numbers with other than uniform distribution.

Modular Stirling Radioisotope Generator

Science.gov (United States)

Schmitz, Paul C.; Mason, Lee S.; Schifer, Nicholas A.

2016-01-01

High-efficiency radioisotope power generators will play an important role in future NASA space exploration missions. Stirling Radioisotope Generators (SRGs) have been identified as a candidate generator technology capable of providing mission designers with an efficient, high-specific-power electrical generator. SRGs high conversion efficiency has the potential to extend the limited Pu-238 supply when compared with current Radioisotope Thermoelectric Generators (RTGs). Due to budgetary constraints, the Advanced Stirling Radioisotope Generator (ASRG) was canceled in the fall of 2013. Over the past year a joint study by NASA and the Department of Energy (DOE) called the Nuclear Power Assessment Study (NPAS) recommended that Stirling technologies continue to be explored. During the mission studies of the NPAS, spare SRGs were sometimes required to meet mission power system reliability requirements. This led to an additional mass penalty and increased isotope consumption levied on certain SRG-based missions. In an attempt to remove the spare power system, a new generator architecture is considered, which could increase the reliability of a Stirling generator and provide a more fault-tolerant power system. This new generator called the Modular Stirling Radioisotope Generator (MSRG) employs multiple parallel Stirling convertor/controller strings, all of which share the heat from the General Purpose Heat Source (GPHS) modules. For this design, generators utilizing one to eight GPHS modules were analyzed, which provided about 50 to 450 W of direct current (DC) to the spacecraft, respectively. Four Stirling convertors are arranged around each GPHS module resulting in from 4 to 32 Stirling/controller strings. The convertors are balanced either individually or in pairs, and are radiatively coupled to the GPHS modules. Heat is rejected through the housing/radiator, which is similar in construction to the ASRG. Mass and power analysis for these systems indicate that specific

Experience and Its Generation

Institute of Scientific and Technical Information of China (English)

Chen Youqing

2006-01-01

Experience iS an activity that arouses emotions and generates meanings based on vivid sensation and profound compreh ension.It iS emotional,meaningful,and personal,playing a key role in the course of forming and developing one'S qualities.The psychological process of experience generation consists of such links as sensing things,arousing emotions,promoting comprehension and association,generating insights and meanings,and deepening emotional responses.Undergoing things personally by means of direct sensation,taking part in activities,and living life are the most important preconditions of experience generation.Emotional influence,situational edification,and arts edification ale extemal factors that induce experience generation.

Generators for Miranda

Energy Technology Data Exchange (ETDEWEB)

Angiolini, G.; Borgna, H.; Garcia, A.; Fernandez, M.; Piriz, H.; Verdu, C. [IMPSA Hydrogenerators (Argentina)

2000-10-01

The three generators at the Miranda hydroelectric power plant on the Araguari river northwest of Belo Horizonte in the state of Minas Gerais began operation in 1998. All the electromechanical equipment for the project was supplied by IMPSA. The generators, which are driven by Francis turbines, are vertical shaft, three-phase, salient-pole synchronous machines with an output of 137 MVA. The generators successfully completed a series of studies and trials before commercial operation began and Companhia Energetica de Minas Gerais (CEMIG) is considering increasing the operation power to 150 MVA. The specification and design of the electrical aspects, stator winding, rotor, bearings, shaft line, generator cooling system, excitation system and monitoring systems are described. Electromagnetic requirements and acceptance testing results are given in two summary tables.

Fast generation of computer-generated holograms using wavelet shrinkage.

Science.gov (United States)

Shimobaba, Tomoyoshi; Ito, Tomoyoshi

2017-01-09

Computer-generated holograms (CGHs) are generated by superimposing complex amplitudes emitted from a number of object points. However, this superposition process remains very time-consuming even when using the latest computers. We propose a fast calculation algorithm for CGHs that uses a wavelet shrinkage method, eliminating small wavelet coefficient values to express approximated complex amplitudes using only a few representative wavelet coefficients.

Solar fuels generator

Science.gov (United States)

Lewis, Nathan S.; Spurgeon, Joshua M.

2016-10-25

The solar fuels generator includes an ionically conductive separator between a gaseous first phase and a second phase. A photoanode uses one or more components of the first phase to generate cations during operation of the solar fuels generator. A cation conduit is positioned provides a pathway along which the cations travel from the photoanode to the separator. The separator conducts the cations. A second solid cation conduit conducts the cations from the separator to a photocathode.

MHD Generating system

Science.gov (United States)

Petrick, Michael; Pierson, Edward S.; Schreiner, Felix

1980-01-01

According to the present invention, coal combustion gas is the primary working fluid and copper or a copper alloy is the electrodynamic fluid in the MHD generator, thereby eliminating the heat exchangers between the combustor and the liquid-metal MHD working fluids, allowing the use of a conventional coalfired steam bottoming plant, and making the plant simpler, more efficient and cheaper. In operation, the gas and liquid are combined in a mixer and the resulting two-phase mixture enters the MHD generator. The MHD generator acts as a turbine and electric generator in one unit wherein the gas expands, drives the liquid across the magnetic field and thus generates electrical power. The gas and liquid are separated, and the available energy in the gas is recovered before the gas is exhausted to the atmosphere. Where the combustion gas contains sulfur, oxygen is bubbled through a side loop to remove sulfur therefrom as a concentrated stream of sulfur dioxide. The combustor is operated substoichiometrically to control the oxide level in the copper.

Electromechanical x-ray generator

Science.gov (United States)

Watson, Scott A; Platts, David; Sorensen, Eric B

2016-05-03

An electro-mechanical x-ray generator configured to obtain high-energy operation with favorable energy-weight scaling. The electro-mechanical x-ray generator may include a pair of capacitor plates. The capacitor plates may be charged to a predefined voltage and may be separated to generate higher voltages on the order of hundreds of kV in the AK gap. The high voltage may be generated in a vacuum tube.

Passive flow heat exchanger simulation for power generation from solar pond using thermoelectric generators

Science.gov (United States)

Baharin, Nuraida'Aadilia; Arzami, Amir Afiq; Singh, Baljit; Remeli, Muhammad Fairuz; Tan, Lippong; Oberoi, Amandeep

2017-04-01

In this study, a thermoelectric generator heat exchanger system was designed and simulated for electricity generation from solar pond. A thermoelectric generator heat exchanger was studied by using Computational Fluid Dynamics to simulate flow and heat transfer. A thermoelectric generator heat exchanger designed for passive in-pond flow used in solar pond for electrical power generation. A simple analysis simulation was developed to obtain the amount of electricity generated at different conditions for hot temperatures of a solar pond at different flow rates. Results indicated that the system is capable of producing electricity. This study and design provides an alternative way to generate electricity from solar pond in tropical countries like Malaysia for possible renewable energy applications.

Measurement for skyshine of neutron generated by the K-600 neutron generator

International Nuclear Information System (INIS)

Zhen Huazhi; Li Guisheng; Wu Jingmin; Li Jianping

1988-01-01

The attenuation low of neutron scattering in atmosphere that generated by K-600 neutron generator at IMP was measured in order to evaluate the effect of the neutron generator to surroundings. The attenuation lenth λ = 396m was obtained and this result is in aggreement with the measured data at some laboratories abroad

Wind Generators and Market Power

DEFF Research Database (Denmark)

Misir, Nihat

price thresholds are significantly higher when the monopolist at the peakload level owns both types of generators. Furthermore, when producing electricity with the peakload generator, the monopolist can avoid facing prices below marginal cost by owning a certain share of the wind generators.......Electricity production from wind generators holds significant importance in European Union’s 20% renewable energy target by 2020. In this paper, I show that ownership of wind generators affects market outcomes by using both a Cournot oligopoly model and a real options model. In the Cournot...... oligopoly model, ownership of the wind generators by owners of fossil-fueled (peakload) generators decreases total peakload production and increases the market price. These effects increase with total wind generation and aggregate wind generator ownership. In the real options model, start up and shut down...

Nanosecond neutron generator

International Nuclear Information System (INIS)

Lobov, S.I.; Pavlovskaya, N.G.; Pukhov, S.P.

1991-01-01

High-voltage nanosecond neutron generator for obtaining neutrons in D-T reaction is described. Yield of 6x10 6 neutron/pulse was generated in a sealed gas-filled diode with a target on the cathode by accelerating pulse voltage of approximately 0.5 MV and length at half-height of 0.5 ns and deuterium pressure of 6x10 -2 Torr. Ways of increasing neutron yield and possibilities of creating generators of nanosecond neutron pulses with great service life are considered

Quantum random number generator

Science.gov (United States)

Soubusta, Jan; Haderka, Ondrej; Hendrych, Martin

2001-03-01

Since reflection or transmission of a quantum particle on a beamsplitter is inherently random quantum process, a device built on this principle does not suffer from drawbacks of neither pseudo-random computer generators or classical noise sources. Nevertheless, a number of physical conditions necessary for high quality random numbers generation must be satisfied. Luckily, in quantum optics realization they can be well controlled. We present an easy random number generator based on the division of weak light pulses on a beamsplitter. The randomness of the generated bit stream is supported by passing the data through series of 15 statistical test. The device generates at a rate of 109.7 kbit/s.

Analisis Perbandingan Karakteristik Luar Generator Arus Searah Penguatan Bebas Dengan Generator Arus Searah Penguat Shunt

OpenAIRE

Arwinsyah

2009-01-01

Generator DC digunakan untuk peralatan yang membutuhkan supply arus searah. Berdasarkan cara memberikan fluks pada kumparan medannya, generator DC dikelompokkan menjadi dua yaitu generator berpenguatan bebas dan generator berpenguatan sendiri. Karakteristik yang ada pada generator DC antara lain karakteristik beban nol, karakterik berbeban, dan karakteristik luar. Karakteristik luar sebuah generator DC menunjukkan bagaimana perubahan tegangan terminal ( Vt ) terhadap beban yang berubah – ubah...

Self-assembling software generator

Science.gov (United States)

Bouchard, Ann M [Albuquerque, NM; Osbourn, Gordon C [Albuquerque, NM

2011-11-25

A technique to generate an executable task includes inspecting a task specification data structure to determine what software entities are to be generated to create the executable task, inspecting the task specification data structure to determine how the software entities will be linked after generating the software entities, inspecting the task specification data structure to determine logic to be executed by the software entities, and generating the software entities to create the executable task.

Airburst-Generated Tsunamis

Science.gov (United States)

Berger, Marsha; Goodman, Jonathan

2018-04-01

This paper examines the questions of whether smaller asteroids that burst in the air over water can generate tsunamis that could pose a threat to distant locations. Such airburst-generated tsunamis are qualitatively different than the more frequently studied earthquake-generated tsunamis, and differ as well from tsunamis generated by asteroids that strike the ocean. Numerical simulations are presented using the shallow water equations in several settings, demonstrating very little tsunami threat from this scenario. A model problem with an explicit solution that demonstrates and explains the same phenomena found in the computations is analyzed. We discuss the question of whether compressibility and dispersion are important effects that should be included, and show results from a more sophisticated model problem using the linearized Euler equations that begins to addresses this.

Power Maximization Control of Variable Speed Wind Generation System Using Permanent Magnet Synchronous Generator

Science.gov (United States)

Morimoto, Shigeo; Nakamura, Tomohiko; Takeda, Yoji

This paper proposes the sensorless output power maximization control of the wind generation system. A permanent magnet synchronous generator (PMSG) is used as a variable speed generator in the proposed system. The generator torque is suitably controlled according to the generator speed and thus the power from a wind turbine settles down on the maximum power point by the proposed MPPT control method, where the information of wind velocity is not required. Moreover, the maximum available generated power is obtained by the optimum current vector control. The current vector of PMSG is optimally controlled according to the generator speed and the required torque in order to minimize the losses of PMSG considering the voltage and current constraints. The proposed wind power generation system can be achieved without mechanical sensors such as a wind velocity detector and a position sensor. Several experimental results show the effectiveness of the proposed control method.

77 FR 3236 - Proposed Collection; Comment Request

Science.gov (United States)

2012-01-23

...: ``Department of Defense Education Activity (DoDEA) Sure Start Parent Questionnaire,'' OMB CONTROL NUMBER 0704... Collection The Department of Defense Education Activity (DoDEA) Sure Start Parent Questionnaire will be... nutrition, social, and parent involvement services. Close collaboration between families, schools, and the...

The invention of the indepence condition for preferences

NARCIS (Netherlands)

Wakker, P.P.; Fishburn, P.C.

1995-01-01

This paper discusses the history and interrelations of three central ideas in preference theory: the independence condition in decision making under risk, the sure-thing principle in decision making under uncertainty, and independence in consumer theory. Independence and the sure-thing principle are

Bone marrow transplant – children - discharge

Science.gov (United States)

... or drink anything that may be undercooked or spoiled at home or when eating out. Learn how to cook and store foods safely. Make sure their water is safe to drink. Make sure your child washes their hands with soap and water often, ...

The additive congruential random number generator--A special case of a multiple recursive generator

Science.gov (United States)

Wikramaratna, Roy S.

2008-07-01

This paper considers an approach to generating uniformly distributed pseudo-random numbers which works well in serial applications but which also appears particularly well-suited for application on parallel processing systems. Additive Congruential Random Number (ACORN) generators are straightforward to implement for arbitrarily large order and modulus; if implemented using integer arithmetic, it becomes possible to generate identical sequences on any machine. Previously published theoretical analysis has demonstrated that a kth order ACORN sequence approximates to being uniformly distributed in up to k dimensions, for any given k. ACORN generators can be constructed to give period lengths exceeding any given number (for example, with period length in excess of 230p, for any given p). Results of empirical tests have demonstrated that, if p is greater than or equal to 2, then the ACORN generator can be used successfully for generating double precision uniform random variates. This paper demonstrates that an ACORN generator is a particular case of a multiple recursive generator (and, therefore, also a special case of a matrix generator). Both these latter approaches have been widely studied, and it is to be hoped that the results given in the present paper will lead to greater confidence in using the ACORN generators.

Coal-fired generation

CERN Document Server

Breeze, Paul

2015-01-01

Coal-Fired Generation is a concise, up-to-date and readable guide providing an introduction to this traditional power generation technology. It includes detailed descriptions of coal fired generation systems, demystifies the coal fired technology functions in practice as well as exploring the economic and environmental risk factors. Engineers, managers, policymakers and those involved in planning and delivering energy resources will find this reference a valuable guide, to help establish a reliable power supply address social and economic objectives. Focuses on the evolution of the traditio

Review of Micro Magnetic Generator

Directory of Open Access Journals (Sweden)

Lin DU

2014-08-01

Full Text Available This paper discusses the research progress of micro magnetic generator systems. Micro magnetic generator systems convert energy from the environment to electric energy with advantages as high reliability, high power density, long life time and can be applied to extreme environment. This paper summarizes methods for improving generator performance of micro magnetic generator, including rotational magnetic generator, vibrational magnetic generator and hybrid magnetic generator, analyzes and compares their design and performance, and concludes key technologies and ongoing challenges for further progress. The paper is instructive and meaningful to for research work of related field.

Generational Accounting in Iran

Directory of Open Access Journals (Sweden)

Mahdi Salehi

2013-09-01

Full Text Available The aim of this paper is to study of the generation accounts for Iranian’s generation. We applied the method of Auerbach, Gokhale and Kotlihoff (1991 on the period 1967-2008 in Iran. Our calculation shows with compare to industrial countries, fiscal burden for Iranian’s population is very chip and that depend on fiscal system in Iran. Except the recent years the rate of tax in Iran has been very low. The generation account for the old people (40 olds is 2117 $ but the future generation (t+1 is 36985 $. The share of male and female, during the years, in this burden is similar. Fiscal burden for Iranian’s generation is low but this population should support other burden that calls inflation. Because when the government do not receive the tax income, a low generation account transfer to price general level.

EGG: Empirical Galaxy Generator

Science.gov (United States)

Schreiber, C.; Elbaz, D.; Pannella, M.; Merlin, E.; Castellano, M.; Fontana, A.; Bourne, N.; Boutsia, K.; Cullen, F.; Dunlop, J.; Ferguson, H. C.; Michałowski, M. J.; Okumura, K.; Santini, P.; Shu, X. W.; Wang, T.; White, C.

2018-04-01

The Empirical Galaxy Generator (EGG) generates fake galaxy catalogs and images with realistic positions, morphologies and fluxes from the far-ultraviolet to the far-infrared. The catalogs are generated by egg-gencat and stored in binary FITS tables (column oriented). Another program, egg-2skymaker, is used to convert the generated catalog into ASCII tables suitable for ingestion by SkyMaker (ascl:1010.066) to produce realistic high resolution images (e.g., Hubble-like), while egg-gennoise and egg-genmap can be used to generate the low resolution images (e.g., Herschel-like). These tools can be used to test source extraction codes, or to evaluate the reliability of any map-based science (stacking, dropout identification, etc.).

Procedure generation and verification

International Nuclear Information System (INIS)

Sheely, W.F.

1986-01-01

The Department of Energy has used Artificial Intelligence of ''AI'' concepts to develop two powerful new computer-based techniques to enhance safety in nuclear applications. The Procedure Generation System, and the Procedure Verification System, can be adapted to other commercial applications, such as a manufacturing plant. The Procedure Generation System can create a procedure to deal with the off-normal condition. The operator can then take correct actions on the system in minimal time. The Verification System evaluates the logic of the Procedure Generator's conclusions. This evaluation uses logic techniques totally independent of the Procedure Generator. The rapid, accurate generation and verification of corrective procedures can greatly reduce the human error, possible in a complex (stressful/high stress) situation

Use of an electrothermal bipolar sealing device in ligation of major mesenteric vessels during laparoscopic colorectal resection.

LENUS (Irish Health Repository)

Martin, S T

2012-02-01

BACKGROUND: A variety of approaches are available for division of major vascular structures during laparoscopic colorectal resection. Ultrasonic coagulating shears (UCS), vascular staplers, plastic or titanium clips and electrothermal bipolar vessel sealing (EBVS) are currently available. We report our experience with an EBVS device, LigaSure (Covidien AG), used in division of the ileocolic, middle colic and inferior mesenteric arteries during laparoscopic colorectal resection. METHODS: We report the immediate outcome of 802 consecutive unselected patients who underwent elective laparoscopic colorectal cancer resection performed with use of the LigaSure (5 and 10 mm) at our institution over a 5-year period. Operative procedures included right hemicolectomy (n = 180), left hemicolectomy (n = 96), sigmoid colectomy (n = 347) and anterior resection (n = 179). Data were collected from a prospectively maintained cancer database and operative records. The procedures were performed primarily by three consultant surgeons with an interest in laparoscopic colorectal resection. RESULTS: Of 802 cases in which the LigaSure device was employed to divide major vascular structures, immediate effective vessel sealing was achieved in 99.8% (n = 800). Two patients experienced related adverse events both following division of the inferior mesenteric artery with a 5 mm LigaSure. Both patients had immediate uncontrolled haemorrhage that required laparotomy. CONCLUSIONS: Use of the LigaSure device to seal and divide the major mesenteric vessels during laparoscopic colorectal resection is very effective, with a high success rate of 99.8%. Caution should be exercised in elderly atherosclerotic patients, particularly when using the 5-mm LigaSure device.

Next-generation phylogenomics

Directory of Open Access Journals (Sweden)

Chan Cheong Xin

2013-01-01

Full Text Available Abstract Thanks to advances in next-generation technologies, genome sequences are now being generated at breadth (e.g. across environments and depth (thousands of closely related strains, individuals or samples unimaginable only a few years ago. Phylogenomics – the study of evolutionary relationships based on comparative analysis of genome-scale data – has so far been developed as industrial-scale molecular phylogenetics, proceeding in the two classical steps: multiple alignment of homologous sequences, followed by inference of a tree (or multiple trees. However, the algorithms typically employed for these steps scale poorly with number of sequences, such that for an increasing number of problems, high-quality phylogenomic analysis is (or soon will be computationally infeasible. Moreover, next-generation data are often incomplete and error-prone, and analysis may be further complicated by genome rearrangement, gene fusion and deletion, lateral genetic transfer, and transcript variation. Here we argue that next-generation data require next-generation phylogenomics, including so-called alignment-free approaches. Reviewers Reviewed by Mr Alexander Panchin (nominated by Dr Mikhail Gelfand, Dr Eugene Koonin and Prof Peter Gogarten. For the full reviews, please go to the Reviewers’ comments section.

Financing Distributed Generation

International Nuclear Information System (INIS)

Walker, A.

2001-01-01

This paper introduces the engineer who is undertaking distributed generation projects to a wide range of financing options. Distributed generation systems (such as internal combustion engines, small gas turbines, fuel cells and photovoltaics) all require an initial investment, which is recovered over time through revenues or savings. An understanding of the cost of capital and financing structures helps the engineer develop realistic expectations and not be offended by the common requirements of financing organizations. This paper discusses several mechanisms for financing distributed generation projects: appropriations; debt (commercial bank loan); mortgage; home equity loan; limited partnership; vendor financing; general obligation bond; revenue bond; lease; Energy Savings Performance Contract; utility programs; chauffage (end-use purchase); and grants. The paper also discusses financial strategies for businesses focusing on distributed generation: venture capital; informal investors (''business angels''); bank and debt financing; and the stock market

Power generation technologies

CERN Document Server

Breeze, Paul

2014-01-01

The new edition of Power Generation Technologies is a concise and readable guide that provides an introduction to the full spectrum of currently available power generation options, from traditional fossil fuels and the better established alternatives such as wind and solar power, to emerging renewables such as biomass and geothermal energy. Technology solutions such as combined heat and power and distributed generation are also explored. However, this book is more than just an account of the technologies - for each method the author explores the economic and environmental costs and risk factor

PC Scene Generation

Science.gov (United States)

Buford, James A., Jr.; Cosby, David; Bunfield, Dennis H.; Mayhall, Anthony J.; Trimble, Darian E.

2007-04-01

AMRDEC has successfully tested hardware and software for Real-Time Scene Generation for IR and SAL Sensors on COTS PC based hardware and video cards. AMRDEC personnel worked with nVidia and Concurrent Computer Corporation to develop a Scene Generation system capable of frame rates of at least 120Hz while frame locked to an external source (such as a missile seeker) with no dropped frames. Latency measurements and image validation were performed using COTS and in-house developed hardware and software. Software for the Scene Generation system was developed using OpenSceneGraph.

Generational Pension Plan Designs

NARCIS (Netherlands)

Huang, Xiaohong; Mahieu, Ronald

2010-01-01

We propose a generational plan for the occupational pension provision in which people from the same generation are pooled in a generational fund. Each fund can set its own policies independently. This plan provides the benefits of differentiation missing in the prevailing collective plan and the

Using Multivariate Regression Model with Least Absolute Shrinkage and Selection Operator (LASSO) to Predict the Incidence of Xerostomia after Intensity-Modulated Radiotherapy for Head and Neck Cancer

Science.gov (United States)

Ting, Hui-Min; Chang, Liyun; Huang, Yu-Jie; Wu, Jia-Ming; Wang, Hung-Yu; Horng, Mong-Fong; Chang, Chun-Ming; Lan, Jen-Hong; Huang, Ya-Yu; Fang, Fu-Min; Leung, Stephen Wan

2014-01-01

Purpose The aim of this study was to develop a multivariate logistic regression model with least absolute shrinkage and selection operator (LASSO) to make valid predictions about the incidence of moderate-to-severe patient-rated xerostomia among head and neck cancer (HNC) patients treated with IMRT. Methods and Materials Quality of life questionnaire datasets from 206 patients with HNC were analyzed. The European Organization for Research and Treatment of Cancer QLQ-H&N35 and QLQ-C30 questionnaires were used as the endpoint evaluation. The primary endpoint (grade 3+ xerostomia) was defined as moderate-to-severe xerostomia at 3 (XER3m) and 12 months (XER12m) after the completion of IMRT. Normal tissue complication probability (NTCP) models were developed. The optimal and suboptimal numbers of prognostic factors for a multivariate logistic regression model were determined using the LASSO with bootstrapping technique. Statistical analysis was performed using the scaled Brier score, Nagelkerke R2, chi-squared test, Omnibus, Hosmer-Lemeshow test, and the AUC. Results Eight prognostic factors were selected by LASSO for the 3-month time point: Dmean-c, Dmean-i, age, financial status, T stage, AJCC stage, smoking, and education. Nine prognostic factors were selected for the 12-month time point: Dmean-i, education, Dmean-c, smoking, T stage, baseline xerostomia, alcohol abuse, family history, and node classification. In the selection of the suboptimal number of prognostic factors by LASSO, three suboptimal prognostic factors were fine-tuned by Hosmer-Lemeshow test and AUC, i.e., Dmean-c, Dmean-i, and age for the 3-month time point. Five suboptimal prognostic factors were also selected for the 12-month time point, i.e., Dmean-i, education, Dmean-c, smoking, and T stage. The overall performance for both time points of the NTCP model in terms of scaled Brier score, Omnibus, and Nagelkerke R2 was satisfactory and corresponded well with the expected values. Conclusions

Morfoanatomia vegetativa de Opuntia brasiliensis (Willd Haw / Vegetative morphology and anatomy of Opuntia brasiliensis (Willd Haw

Directory of Open Access Journals (Sweden)

Camila Firmino de Azevedo

2013-01-01

Full Text Available Opuntia brasiliensis (Willd Haw. é uma Cactaceae nativa do Brasil utilizada como ornamental, que apresenta caracteres morfológicos semelhantes a outras espécies do gênero, o que dificulta sua identificação. Dessa forma, foi realizado uma descrição morfoanatômica de O. brasiliensis com o objetivo de ampliar o conhecimento sobre a organização estrutural do gênero e fornecer subsídios para a identificação da espécie, bem como observar caracteres importantes na adaptação a ambientes xerófilos. Foram feitas secções transversais e paradérmicas da raiz, caule principal e cladódios com espécimes coletados na zona rural da cidade de Serra Branca (PB, localizada na região do cariri ocidental. O. brasiliensis apresenta raiz ramificada e caule clorofilado formando um eixo principal de onde partem inúmeros cladódios delgados. Observamse pelos e epiderme unisseriada irregular na raiz, que possui córtex formado por parênquima, seguido de endoderme multisseriada e periciclo. No cilindro central da raiz, ocorrem tecidos vasculares formando cinco pólos seguidos de medula. O caule e o cladódio apresentam epiderme com paredes sinuosas, em que encontram-se estômatos paralelocíticos que apresentam câmara subestomática; e na camada subsequente, hipoderme com grande quantidade de drusas de oxalato de cálcio. O córtex é formado por parênquimas clorofiliano e aquífero, onde observam-se feixes vasculares, com raios de floema voltados para o lado externo, seguido de xilema helicoidal. Porém, nos cladódios, o parênquima clorofiliano é bem mais denso e os feixes vasculares são dispostos irregularmente, enquanto no caule estão distribuídos no sentido radial. O. brasiliensis apresenta várias características importantes na sua identificação, bem como adaptações estruturais a ambientes xerófilos

Multispacer typing of Rickettsia isolates from humans and ticks in Tunisia revealing new genotypes.

Science.gov (United States)

Znazen, Abir; Khrouf, Fatma; Elleuch, Nihel; Lahiani, Dorra; Marrekchi, Chakib; M'Ghirbi, Youmna; Ben Jemaa, Mounir; Bouattour, Ali; Hammami, Adnene

2013-12-31

Rickettsioses are important remerging vector born infections. In Tunisia, many species have been described in humans and vectors. Genotyping is important for tracking pathogen movement between hosts and vectors. In this study, we characterized Rickettsia species detected in patients and vectors using multispacer typing (MST), proposed by Founier et al. and based on three intergenic spacers (dksA-xerC, rmpE- tRNA(fMet), mppA-pruC) sequencing. Our study included 25 patients hospitalized during 2009. Ticks and fleas were collected in the vicinity of confirmed cases. Serology was performed on serum samples by microimmunofluorescence using Rickettsia conorii and Rickettsia typhi antigens. To detect and identify Rickettsia species, PCR targeting ompA, ompB and gltA genes followed by sequencing was performed on 18 obtained skin biopsies and on all collected vectors. Rickettsia positive samples were further characterized using primers targeting three intergenic spacers (dksA-xerC, rmpE- tRNA(fMet) and mppA-purC). A rickettsial infection was confirmed in 15 cases (60%). Serology was positive in 13 cases (52%). PCR detected Rickettsia DNA in four biopsies (16%) allowing the identification of R. conorii subsp israelensis in three cases and R. conorii subsp conorii in one case. Among 380 collected ticks, nine presented positive PCR (2.4%) allowing the identification of six R. conorii subsp israelensis, two R. massiliae and one R. conorii subsp conorii. Among 322 collected fleas, only one was positive for R. felis. R. conorii subsp israelensis strains detected in humans and vectors clustered together and showed a new MST genotype. Similarly, R. conorii subsp conorii strains detected in a skin biopsy and a tick were genetically related and presented a new MST genotype. New Rickettsia spotted fever strain genotypes were found in Tunisia. Isolates detected in humans and vectors were genetically homogenous despite location differences in their original isolation suggesting

Solar Fuel Generator

Science.gov (United States)

Lewis, Nathan S. (Inventor); West, William C. (Inventor)

2017-01-01

The disclosure provides conductive membranes for water splitting and solar fuel generation. The membranes comprise an embedded semiconductive/photoactive material and an oxygen or hydrogen evolution catalyst. Also provided are chassis and cassettes containing the membranes for use in fuel generation.

Sadhana | Indian Academy of Sciences

Indian Academy of Sciences (India)

Home; Journals; Sadhana. PALLAVIRAM SURE. Articles written in Sadhana. Volume 40 Issue 7 October 2015 pp 2111-2128. Weighted-noise threshold based channel estimation for OFDM systems · Pallaviram Sure Chandra Mohan Bhuma · More Details Abstract Fulltext PDF. Orthogonal frequency division multiplexing ...

Diagnostic system of steam generator, especially molten metal heated steam generator

International Nuclear Information System (INIS)

Matal, O.; Martoch, J.

1986-01-01

A diagnostic system is described and graphically represented consisting of a leak detector, a medium analyzer and sensors placed on the piping connected to the indication sections of both tube plates. The advantage of the designed system consists in the possibility of detecting tube failure immediately on leak formation, especially in generators with duplex tubes. This shortens the period of steam generator shutdown for repair and reduces power losses. The design also allows to make periodical leak tests during planned steam generator shutdowns. (A.K.)

Food Simulating Organic Solvents for Evaluating Crosslink Density of Bulk Fill Composite Resin

Directory of Open Access Journals (Sweden)

Neveen M. Ayad

2017-01-01

Full Text Available Objectives. To evaluate crosslink densities of two bulk fill composite resins and determine if the used Food Simulating Organic Solvent (FSOS affected them. Methods. Forty specimens were prepared from SureFill and SonicFill bulk fill composite resins, 20 each. All specimens were stored dry for 24 h. Each group was divided into 2 subgroups: stored in ethanol (E 75% or in methyl ethyl ketone (MEK 100% for 24 h. Crosslink density was evaluated by calculating the difference between the Vickers hardness numbers of the specimens stored dry and after their storage in FSOS. The data were statistically analyzed using t-test. Results. The means of crosslink density in E and MEK were 6.99% and 9.44% for SureFill and 10.54% and 11.92% for SonicFill, respectively. t-test displayed significant differences between crosslink densities of SureFill and SonicFill: (P<0.0001 in E and (P=0.02 in MEK and between crosslink densities of SureFill in E and MEK (P=0.02. Conclusions. Crosslink density of bulk fill composite resin can be evaluated using E or MEK. SureFill has higher crosslink density than SonicFill in both E and MEK.

OMG: Open Molecule Generator.

Science.gov (United States)

Peironcely, Julio E; Rojas-Chertó, Miguel; Fichera, Davide; Reijmers, Theo; Coulier, Leon; Faulon, Jean-Loup; Hankemeier, Thomas

2012-09-17

Computer Assisted Structure Elucidation has been used for decades to discover the chemical structure of unknown compounds. In this work we introduce the first open source structure generator, Open Molecule Generator (OMG), which for a given elemental composition produces all non-isomorphic chemical structures that match that elemental composition. Furthermore, this structure generator can accept as additional input one or multiple non-overlapping prescribed substructures to drastically reduce the number of possible chemical structures. Being open source allows for customization and future extension of its functionality. OMG relies on a modified version of the Canonical Augmentation Path, which grows intermediate chemical structures by adding bonds and checks that at each step only unique molecules are produced. In order to benchmark the tool, we generated chemical structures for the elemental formulas and substructures of different metabolites and compared the results with a commercially available structure generator. The results obtained, i.e. the number of molecules generated, were identical for elemental compositions having only C, O and H. For elemental compositions containing C, O, H, N, P and S, OMG produces all the chemically valid molecules while the other generator produces more, yet chemically impossible, molecules. The chemical completeness of the OMG results comes at the expense of being slower than the commercial generator. In addition to being open source, OMG clearly showed the added value of constraining the solution space by using multiple prescribed substructures as input. We expect this structure generator to be useful in many fields, but to be especially of great importance for metabolomics, where identifying unknown metabolites is still a major bottleneck.

OMG: Open Molecule Generator

Directory of Open Access Journals (Sweden)

Peironcely Julio E

2012-09-01

Full Text Available Abstract Computer Assisted Structure Elucidation has been used for decades to discover the chemical structure of unknown compounds. In this work we introduce the first open source structure generator, Open Molecule Generator (OMG, which for a given elemental composition produces all non-isomorphic chemical structures that match that elemental composition. Furthermore, this structure generator can accept as additional input one or multiple non-overlapping prescribed substructures to drastically reduce the number of possible chemical structures. Being open source allows for customization and future extension of its functionality. OMG relies on a modified version of the Canonical Augmentation Path, which grows intermediate chemical structures by adding bonds and checks that at each step only unique molecules are produced. In order to benchmark the tool, we generated chemical structures for the elemental formulas and substructures of different metabolites and compared the results with a commercially available structure generator. The results obtained, i.e. the number of molecules generated, were identical for elemental compositions having only C, O and H. For elemental compositions containing C, O, H, N, P and S, OMG produces all the chemically valid molecules while the other generator produces more, yet chemically impossible, molecules. The chemical completeness of the OMG results comes at the expense of being slower than the commercial generator. In addition to being open source, OMG clearly showed the added value of constraining the solution space by using multiple prescribed substructures as input. We expect this structure generator to be useful in many fields, but to be especially of great importance for metabolomics, where identifying unknown metabolites is still a major bottleneck.

Financing Distributed Generation

Energy Technology Data Exchange (ETDEWEB)

Walker, A.

2001-06-29

This paper introduces the engineer who is undertaking distributed generation projects to a wide range of financing options. Distributed generation systems (such as internal combustion engines, small gas turbines, fuel cells and photovoltaics) all require an initial investment, which is recovered over time through revenues or savings. An understanding of the cost of capital and financing structures helps the engineer develop realistic expectations and not be offended by the common requirements of financing organizations. This paper discusses several mechanisms for financing distributed generation projects: appropriations; debt (commercial bank loan); mortgage; home equity loan; limited partnership; vendor financing; general obligation bond; revenue bond; lease; Energy Savings Performance Contract; utility programs; chauffage (end-use purchase); and grants. The paper also discusses financial strategies for businesses focusing on distributed generation: venture capital; informal investors (''business angels''); bank and debt financing; and the stock market.

LMFBR steam generator development: duplex bayonet tube steam generator. Volume II

International Nuclear Information System (INIS)

DeFur, D.D.

1975-04-01

This report represents the culmination of work performed in fulfillment of ERDA Contract AT(11-1)-2426, Task Agreement 2, in which alternate steam generator designs were developed and studied. The basic bayonet tube generator design previously developed by C-E under AEC Contract AT(11-1)-3031 was expanded by incorporating duplex heat transfer tubes to enhance the unit's overall safety and reliability. The effort consisted of providing and evaluating conceptual designs of the evaporator, superheater and reheater components for a large plant LMFBR steam generator (950 MWt per heat transport loop)

Optimized Generator Designs for the DTU 10-MW Offshore Wind Turbine using GeneratorSE

Energy Technology Data Exchange (ETDEWEB)

Sethuraman, Latha; Maness, Michael; Dykes, Katherine

2017-01-09

Compared to land-based applications, offshore wind imposes challenges for the development of next generation wind turbine generator technology. Direct-drive generators are believed to offer high availability, efficiency, and reduced operation and maintenance requirements; however, previous research suggests difficulties in scaling to several megawatts or more in size. The resulting designs are excessively large and/or massive, which are major impediments to transportation logistics, especially for offshore applications. At the same time, geared wind turbines continue to sustain offshore market growth through relatively cheaper and lightweight generators. However, reliability issues associated with mechanical components in a geared system create significant operation and maintenance costs, and these costs make up a large portion of overall system costs offshore. Thus, direct-drive turbines are likely to outnumber their gear-driven counterparts for this market, and there is a need to review the costs or opportunities of building machines with different types of generators and examining their competitiveness at the sizes necessary for the next generation of offshore wind turbines. In this paper, we use GeneratorSE, the National Renewable Energy Laboratory's newly developed systems engineering generator sizing tool to estimate mass, efficiency, and the costs of different generator technologies satisfying the electromagnetic, structural, and basic thermal design requirements for application in a very large-scale offshore wind turbine such as the Technical University of Denmark's (DTU) 10-MW reference wind turbine. For the DTU reference wind turbine, we use the previously mentioned criteria to optimize a direct-drive, radial flux, permanent-magnet synchronous generator; a direct-drive electrically excited synchronous generator; a medium-speed permanent-magnet generator; and a high-speed, doubly-fed induction generator. Preliminary analysis of leveled costs of

Pulse-voltage fast generator

International Nuclear Information System (INIS)

Valeev, R.I.; Nikiforov, M.G.; Kharchenko, A.F.

1988-01-01

The design is described and the test results of a four-channel pulse-voltage generator with maximum output voltage 200 kV are presented. The measurement results of generator triggering time depending on the value and polarity of the triggering voltage pulse for different triggering circuits are presented. The tests have shown stable triggering of all four channels of the generator in the range up to 40 % from selfbreakdown voltage. The generator triggering delay in the given range is <25 ns, asynchronism in channel triggering is <±1 ns

Uniform random number generators

Science.gov (United States)

Farr, W. R.

1971-01-01

Methods are presented for the generation of random numbers with uniform and normal distributions. Subprogram listings of Fortran generators for the Univac 1108, SDS 930, and CDC 3200 digital computers are also included. The generators are of the mixed multiplicative type, and the mathematical method employed is that of Marsaglia and Bray.

Generation and Context Memory

Science.gov (United States)

Mulligan, Neil W.; Lozito, Jeffrey P.; Rosner, Zachary A.

2006-01-01

Generation enhances memory for occurrence but may not enhance other aspects of memory. The present study further delineates the negative generation effect in context memory reported in N. W. Mulligan (2004). First, the negative generation effect occurred for perceptual attributes of the target item (its color and font) but not for extratarget…

Third Generation Coaching

DEFF Research Database (Denmark)

Stelter, Reinhard

2016-01-01

, Gruppen oder Teams neue Orientierung auf einer tieferen Sinnebene ermöglicht. Im Gegensatz zum Coaching der ersten Generation, bei dem das Erreichen bestimmter, festgeschriebener Ziele im Vordergrund steht, und im Gegensatz zum Coaching der zweiten Generation, in dem wünschenswerte zukünftige...

Steam generator life management

International Nuclear Information System (INIS)

Tapping, R.L.; Nickerson, J.; Spekkens, P.; Maruska, C.

1998-01-01

Steam generators are a critical component of a nuclear power reactor, and can contribute significantly to station unavailability, as has been amply demonstrated in Pressurized Water Reactors (PWRs). CANDU steam generators are not immune to steam generator degradation, and the variety of CANDU steam generator designs and tube materials has led to some unexpected challenges. However, aggressive remedial actions, and careful proactive maintenance activities, have led to a decrease in steam generator-related station unavailability of Canadian CANDUs. AECL and the CANDU utilities have defined programs that will enable existing or new steam generators to operate effectively for 40 years. Research and development work covers corrosion and mechanical degradation of tube bundles and internals, chemistry, thermal hydraulics, fouling, inspection and cleaning, as well as provision for specially tool development for specific problem solving. A major driving force is development of CANDU-specific fitness-for-service guidelines, including appropriate inspection and monitoring technology to measure steam generator condition. Longer-range work focuses on development of intelligent on-line monitoring for the feedwater system and steam generator. New designs have reduced risk of corrosion and fouling, are more easily inspected and cleaned, and are less susceptible to mechanical damage. The Canadian CANDU utilities have developed programs for remedial actions to combat degradation of performance (Gentilly-2, Point Lepreau, Bruce A/B, Pickering A/B), and have developed strategic plans to ensure that good future operation is ensured. This report shows how recent advances in cleaning technology are integrated into a life management strategy, discusses downcomer flow measurement as a means of monitoring steam generator condition, and describes recent advances in hideout return as a life management tool. The research and development program, as well as operating experience, has identified

Graph Generator Survey

Energy Technology Data Exchange (ETDEWEB)

Lothian, Joshua [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Powers, Sarah S. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Sullivan, Blair D. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Baker, Matthew B. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Schrock, Jonathan [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Poole, Stephen W. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

2013-10-01

The benchmarking effort within the Extreme Scale Systems Center at Oak Ridge National Laboratory seeks to provide High Performance Computing benchmarks and test suites of interest to the DoD sponsor. The work described in this report is a part of the effort focusing on graph generation. A previously developed benchmark, SystemBurn, allowed the emulation of different application behavior profiles within a single framework. To complement this effort, similar capabilities are desired for graph-centric problems. This report examines existing synthetic graph generator implementations in preparation for further study on the properties of their generated synthetic graphs.

Superconducting current generators

International Nuclear Information System (INIS)

Genevey, P.

1970-01-01

After a brief summary of the principle of energy storage and liberation with superconducting coils,two current generators are described that create currents in the range 600 to 1400 A, used for two storage experiments of 25 kJ and 50 kJ respectively. The two current generators are: a) a flux pump and b) a superconducting transformer. Both could be developed into more powerful units. The study shows the advantage of the transformer over the flux pump in order to create large currents. The efficiencies of the two generators are 95 per cent and 40 to 60 per cent respectively. (author) [fr

PULSE SYNTHESIZING GENERATOR

Science.gov (United States)

Kerns, Q.A.

1963-08-01

>An electronlc circuit for synthesizing electrical current pulses having very fast rise times includes several sinewave generators tuned to progressively higher harmonic frequencies with signal amplitudes and phases selectable according to the Fourier series of the waveform that is to be synthesized. Phase control is provided by periodically triggering the generators at precisely controlled times. The outputs of the generators are combined in a coaxial transmission line. Any frequency-dependent delays that occur in the transmission line can be readily compensated for so that the desired signal wave shape is obtained at the output of the line. (AEC)

Magnetohydrodynamic power generation

International Nuclear Information System (INIS)

Sheindlin, A.E.; Jackson, W.D.; Brzozowski, W.S.; Rietjens, L.H.Th.

1979-01-01

The paper describes research and development in the field of magnetohydrodynamic power generation technology, based on discussions held in the Joint IAEA/UNESCO International Liaison Group on MHD electrical power generation. Research and development programmes on open cycle, closed cycle plasma and liquid-metal MHD are described. Open cycle MHD has now entered the engineering development stage. The paper reviews the results of cycle analyses and economic and environmental evaluations: substantial agreement has been reached on the expected overall performance and necessary component specifications. The achievement in the Soviet Union on the U-25 MHD pilot plant in obtaining full rated electrical power of 20.4 MW is described, as well as long duration testing of the integrated operation of MHD components. Work in the United States on coal-fired MHD generators has shown that, with slagging of the walls, a run time of about one hundred hours at the current density and electric field of a commercial MHD generator has been achieved. Progress obtained in closed cycle plasma and liquid metal MHD is reviewed. Electrical power densities of up to 140 MWe/m 3 and an enthalpy extraction as high as 24 per cent have been achieved in noble gas MHD generator experiments. (Auth.)

Impacts on power generation

International Nuclear Information System (INIS)

Myers, J.; Sidebotton, P.

1998-01-01

The future impact of the arrival of natural gas in the Maritime provinces on electricity generation in the region was discussed. Currently, electrical generation sources in Nova Scotia include hydro generation (9 per cent), coal generation (80 per cent), heavy fuel oil generation (8 per cent), and light oil, wood chips and purchased power (3 per cent). It is expected that with the introduction of natural gas electric utilities will take advantage of new gas combustion turbines which have high efficiency rates. An overview of Westcoast Power's operations across Canada was also presented. The Company has three projects in the Maritimes - the Courtney Bay project in New Brunswick, the Bayside Power project, the Irving Paper project - in addition to the McMahon cogeneration plant in Taylor, B.C. figs

Pulsed corona generation using a diode-based pulsed power generator

Science.gov (United States)

Pemen, A. J. M.; Grekhov, I. V.; van Heesch, E. J. M.; Yan, K.; Nair, S. A.; Korotkov, S. V.

2003-10-01

Pulsed plasma techniques serve a wide range of unconventional processes, such as gas and water processing, hydrogen production, and nanotechnology. Extending research on promising applications, such as pulsed corona processing, depends to a great extent on the availability of reliable, efficient and repetitive high-voltage pulsed power technology. Heavy-duty opening switches are the most critical components in high-voltage pulsed power systems with inductive energy storage. At the Ioffe Institute, an unconventional switching mechanism has been found, based on the fast recovery process in a diode. This article discusses the application of such a "drift-step-recovery-diode" for pulsed corona plasma generation. The principle of the diode-based nanosecond high-voltage generator will be discussed. The generator will be coupled to a corona reactor via a transmission-line transformer. The advantages of this concept, such as easy voltage transformation, load matching, switch protection and easy coupling with a dc bias voltage, will be discussed. The developed circuit is tested at both a resistive load and various corona reactors. Methods to optimize the energy transfer to a corona reactor have been evaluated. The impedance matching between the pulse generator and corona reactor can be significantly improved by using a dc bias voltage. At good matching, the corona energy increases and less energy reflects back to the generator. Matching can also be slightly improved by increasing the temperature in the corona reactor. More effective is to reduce the reactor pressure.

BUILDOUT AND UPGRADE OF CENTRAL EMERGENCY GENERATOR SYSTEM, GENERATOR 3 AND 4 ELECTRICAL INSTALLATION

Energy Technology Data Exchange (ETDEWEB)

Gary D. Seifert; G. Shawn West; Kurt S. Myers; Jim Moncur

2006-07-01

SECTION 01000—SUMMARY OF WORK PART 1—GENERAL 1.1 SUMMARY The work to be performed under this project consists of providing the labor, equipment, and materials to perform "Buildout and Upgrade of Central Emergency Generator System, Generator 3 and 4 Electrical Installation" for the National Aeronautics and Space Administration at the Dryden Flight Research Center (NASA/DFRC), Edwards, California 93523. All modifications to existing substations and electrical distribution systems are the responsibility of the contractor. It is the contractor’s responsibility to supply a complete and functionally operational system. The work shall be performed in accordance with these specifications and the related drawings. The work of this project is defined by the plans and specifications contained and referenced herein. This work specifically includes but is not limited to the following: Scope of Work - Installation 1. Install all electrical wiring and controls for new generators 3 and 4 to match existing electrical installation for generators 1 and 2 and in accordance with drawings. Contractor shall provide as-built details for electrical installation. 2. Install battery charger systems for new generators 3 and 4 to match existing battery charging equipment and installation for generators 1 and 2. This may require exchange of some battery charger parts already on-hand. Supply power to new battery chargers from panel and breakers as shown on drawings. Utilize existing conduits already routed to generators 3 and 4 to field route the new wiring in the most reasonable way possible. 3. Install electrical wiring for fuel/lube systems for new generators 3 and 4 to match existing installation for generators 1 and 2. Supply power to lube oil heaters and fuel system (day tanks) from panel and breakers as shown on drawings. Utilize existing conduits already routed to generators 3 and 4 to field route the new wiring in the most reasonable way possible. Add any conduits necessary to

If My Child Has Asthma, Can We Keep Our Pet?

Science.gov (United States)

... your only choice might be to find a new home for your pet. If so, be sure to discuss this with your child. Reassure your child that this isn't his or her "fault" — and make sure siblings don't blame the child. Losing a pet, ...

77 FR 75413 - Submission for OMB Review; Comment Request

Science.gov (United States)

2012-12-20

.... Title and OMB Number: Department of Defense Education Activity (DoDEA) Sure Start Parent Questionnaire... Hours: 367 hours. Needs and Uses: The Sure Start Parent Questionnaire is an instrument to measure the... Internet at http://www.regulations.gov as they are received without change, including any personal...

The external costs of electricity generation: a comparison of generation technologies

Energy Technology Data Exchange (ETDEWEB)

Ozdemiroglu, E [Economics for the Environment Consultancy, London (United Kingdom)

1995-12-01

Electricity generation, like any economic activity, leads to costs that can be grouped in two categories: (a) private or internal and (b) external. Private costs are those paid by the buyers and sellers of energy within the market system. The external costs, however, are not included in the market price mechanism as they accrue to third parties other than the buyer and the seller. External costs include environmental external costs and non-environmental external costs. There are two conditions for the existence of external costs: (a) market failure, or the inability of markets to account for the cost of environmental impacts of energy generation and the market structure and (b) government or policy failure, or the policies that cause private generators to pay either higher or lower costs than they would if these interventions did not exist. A third reason can be added for the existence of non-environmental externalities: energy security, or certain costs faced by society as a result of over-reliance on imported energy. Section A introduces the concept of external costs and benefits. Section B looks at the environmental externalities of energy generation. The procedure is to develop the methodology to estimate what are known as externality adders, i.e. a monetary value for the environmental costs and benefits associated with selected generation technologies, expressed in pence per kilowatt-hour. The result is an `adder` because, in principle, the sum can be added to the private cost of generating electricity to obtain a measure of the `full` or `social` cost. The selected generation technologies are conventional coal, wind power, small-scale hydro, energy crops, incineration of municipal solid waste and energy recovery from landfill. The data reported are based on the application of the technologies in Scotland, but the methodology can be applied anywhere. Section C takes a brief look at the non-environmental externalities including the general theory and evidence

The external costs of electricity generation: a comparison of generation technologies

International Nuclear Information System (INIS)

Ozdemiroglu, E.

1995-01-01

Electricity generation, like any economic activity, leads to costs that can be grouped in two categories: (a) private or internal and (b) external. Private costs are those paid by the buyers and sellers of energy within the market system. The external costs, however, are not included in the market price mechanism as they accrue to third parties other than the buyer and the seller. External costs include environmental external costs and non-environmental external costs. There are two conditions for the existence of external costs: (a) market failure, or the inability of markets to account for the cost of environmental impacts of energy generation and the market structure and (b) government or policy failure, or the policies that cause private generators to pay either higher or lower costs than they would if these interventions did not exist. A third reason can be added for the existence of non-environmental externalities: energy security, or certain costs faced by society as a result of over-reliance on imported energy. Section A introduces the concept of external costs and benefits. Section B looks at the environmental externalities of energy generation. The procedure is to develop the methodology to estimate what are known as externality adders, i.e. a monetary value for the environmental costs and benefits associated with selected generation technologies, expressed in pence per kilowatt-hour. The result is an 'adder' because, in principle, the sum can be added to the private cost of generating electricity to obtain a measure of the 'full' or 'social' cost. The selected generation technologies are conventional coal, wind power, small-scale hydro, energy crops, incineration of municipal solid waste and energy recovery from landfill. The data reported are based on the application of the technologies in Scotland, but the methodology can be applied anywhere. Section C takes a brief look at the non-environmental externalities including the general theory and evidence

Cystic Duct Closure by Sealing With Bipolar Electrocoagulation

Science.gov (United States)

Damgaard, B.; Jorgensen, L. N.; Larsen, S. S.; Kristiansen, V. B.

2010-01-01

Background: Cystic duct leakage after cholecystectomy is not uncommon and is a potentially serious complication. The aim of this study was to assess a bipolar sealing system (LigaSure®) for closure of the cystic duct. Methods: The records from consecutive laparoscopic cholecystectomies performed in 2 hospitals with closure of the cystic duct with LigaSure after informed consent were recorded and complications and morbidity registered. The records were compared with those of patients undergoing laparoscopic cholecystectomy with closure of the cystic duct with clips during the same period. Results: During the study period, 218 laparoscopic cholecystectomies were performed; 102 of these were performed with the LigaSure. One patient was excluded due to violation of the protocol. We experienced no cases of cystic duct leakage, but in one patient, bile leakage from the gallbladder bed was observed probably due to a small aberrant duct. Conclusion: The LigaSure system was safe and effective for closure and division of the cystic duct in laparoscopic cholecystectomy. PMID:20412641

Mixed Frames and Risky Decision-Making.

Science.gov (United States)

Peng, Jiaxi; Zhang, Jiaxi; Sun, Hao; Zeng, Zhicong; Mai, Yuexia; Miao, Danmin

2017-01-01

By applying unitive vocabulary, "die" or "save," to respective frames of the Asian disease problem, Tversky and Kahneman were able to define framing effect. In this study, we preliminarily explored the effect of mixed frames, which are characterized by the use of different vocabulary in one frame. In study 1, we found that only the sure option description had significant effect on decision-making, while the effects of risky option descriptions were not significant, nor were interactions between descriptions. In study 2, the results suggested that after controlling the effects of the hedonic tone of the sure options, risky option description did not significantly predict decision-making. In study 3, we found that neither the sure-to-risky option presentation order nor presentation order within risky options had significant effect on decision-making. We thus concluded that sure option description can serve as the decision-making foundation (reference point) for decision-makers in mixed frames.

Tredje generations coaching

DEFF Research Database (Denmark)

Stelter, Reinhard

2012-01-01

”Tredje generations coaching” udfolder et nyt univers for coaching og coachingpsykologi gennem en bearbejdelse af aktuel samfundsforskning, nye læringsteorier og diskurser om det personlige lederskab. ”Tredje generations coaching” er funderet på en samfundsmæssig forståelse af coaching. Coaching er...... blevet så betydningsfuld, fordi samfundet opleves som uoverskueligt og hyperkomplekst. Viden skal nu udformes og anvendes i specifikke kontekster og situationer, og både i privatliv og i det offentlige rum skal vi lære at forhandle os til rette. Coaching kan hjælpe os til at skabe ny viden og mestre...... sociale forhandlinger. Coaching er dermed en slags fødselshjælp til nye refleksioner og perspektiver, en hjælp til selvhjælp og en støtte til ens egen selvdannelsesproces. ”Tredje generations coaching” fremhæver coach og coachee i deres narrativ-samskabende partnerskab. Til forskel fra første generations...

Simple and Realistic Data Generation

DEFF Research Database (Denmark)

Pedersen, Kenneth Houkjær; Torp, Kristian; Wind, Rico

2006-01-01

This paper presents a generic, DBMS independent, and highly extensible relational data generation tool. The tool can efficiently generate realistic test data for OLTP, OLAP, and data streaming applications. The tool uses a graph model to direct the data generation. This model makes it very simple...... to generate data even for large database schemas with complex inter- and intra table relationships. The model also makes it possible to generate data with very accurate characteristics....

Consolidated nuclear steam generator

International Nuclear Information System (INIS)

Jabsen, F.S.; Schluderberg, D.C.; Paulson, A.E.

1978-01-01

An improved system of providing power has a unique generating means for nuclear reactors with a number of steam generators in the form of replaceable modular units of the expendable type to attain the optimum in effective and efficient vaporization of fluid during the generating power. The system is most adaptable to undrground power plants and marine usage

Gearless wind power generator

Energy Technology Data Exchange (ETDEWEB)

Soederlund, L.; Ridanpaeae, P.; Vihriaelae, H.; Peraelae, R. [Tampere Univ. of Technology (Finland). Lab. of Electricity and Magnetism

1998-12-31

During the wind power generator project a design algorithm for a gearless permanent magnet generator with an axially orientated magnetic flux was developed and a 10 kW model machine was constructed. Utilising the test results a variable wind speed system of 100 kW was designed that incorporates a permanent magnet generator, a frequency converter and a fuzzy controller. This system produces about 5-15% more energy than existing types and stresses to the blades are minimised. The type of generator designed in the project represents in general a gearless solution for slow-speed electrical drives. (orig.)

SMUG: Scientific Music Generator

DEFF Research Database (Denmark)

Scirea, Marco; A B Barros, Gabriella; Togelius, Julian

2015-01-01

Music is based on the real world. Composers use their day-to-day lives as inspiration to create rhythm and lyrics. Procedural music generators are capable of creating good quality pieces, and while some already use the world as inspiration, there is still much to be explored in this. We describe...... a system to generate lyrics and melodies from real-world data, in particular from academic papers. Through this we want to create a playful experience and establish a novel way of generating content (textual and musical) that could be applied to other domains, in particular to games. For melody generation...

Submersible Generator for Marine Hydrokinetics

Energy Technology Data Exchange (ETDEWEB)

Cinq-Mars, Robert S; Burke, Timothy; Irish, James; Gustafson, Brian; Kirtley, James; Alawa, Aiman

2011-09-01

A submersible generator was designed as a distinct and critical subassembly of marine hydrokinetics systems, specifically tidal and stream energy conversion. The generator is designed to work with both vertical and horizontal axis turbines. The final product is a high-pole-count, radial-flux, permanent magnet, rim mounted generator, initially rated at twenty kilowatts in a two-meter-per-second flow, and designed to leverage established and simple manufacturing processes. The generator was designed to work with a 3 meter by 7 meter Gorlov Helical Turbine or a marine hydrokinetic version of the FloDesign wind turbine. The team consisted of experienced motor/generator design engineers with cooperation from major US component suppliers (magnetics, coil winding and electrical steel laminations). Support for this effort was provided by Lucid Energy Technologies and FloDesign, Inc. The following tasks were completed: Identified the conditions and requirements for MHK generators. Defined a methodology for sizing and rating MHK systems. Selected an MHK generator topology and form factor. Completed electromechanical design of submersible generator capable of coupling to multiple turbine styles. Investigated MHK generator manufacturing requirements. Reviewed cost implications and financial viability. Completed final reporting and deliverables

78 FR 32385 - Exelon Generation Company, LLC; CER Generation II, LLC; Constellation Mystic Power, LLC...

Science.gov (United States)

2013-05-30

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. EL13-64-000] Exelon Generation Company, LLC; CER Generation II, LLC; Constellation Mystic Power, LLC; Constellation NewEnergy...) Rules of Practice and Procedure, 18 CFR 385.207, Exelon Generation Company, LLC, CER Generation II, LLC...

The Switching Generator: New Clock-Controlled Generator with Resistance against the Algebraic and Side Channel Attacks

Directory of Open Access Journals (Sweden)

Jun Choi

2015-06-01

Full Text Available Since Advanced Encryption Standard (AES in stream modes, such as counter (CTR, output feedback (OFB and cipher feedback (CFB, can meet most industrial requirements, the range of applications for dedicated stream ciphers is decreasing. There are many attack results using algebraic properties and side channel information against stream ciphers for hardware applications. Al-Hinai et al. presented an algebraic attack approach to a family of irregularly clock-controlled linear feedback shift register systems: the stop and go generator, self-decimated generator and alternating step generator. Other clock-controlled systems, such as shrinking and cascade generators, are indeed vulnerable against side channel attacks. To overcome these threats, new clock-controlled systems were presented, e.g., the generalized alternating step generator, cascade jump-controlled generator and mutual clock-controlled generator. However, the algebraic attack could be applied directly on these new systems. In this paper, we propose a new clock-controlled generator: the switching generator, which has resistance to algebraic and side channel attacks. This generator also preserves both security properties and the efficiency of existing clock-controlled generators.

Random number generation

International Nuclear Information System (INIS)

Coveyou, R.R.

1974-01-01

The subject of random number generation is currently controversial. Differing opinions on this subject seem to stem from implicit or explicit differences in philosophy; in particular, from differing ideas concerning the role of probability in the real world of physical processes, electronic computers, and Monte Carlo calculations. An attempt is made here to reconcile these views. The role of stochastic ideas in mathematical models is discussed. In illustration of these ideas, a mathematical model of the use of random number generators in Monte Carlo calculations is constructed. This model is used to set up criteria for the comparison and evaluation of random number generators. (U.S.)

Protocol Implementation Generator

DEFF Research Database (Denmark)

Carvalho Quaresma, Jose Nuno; Probst, Christian W.

2010-01-01

Users expect communication systems to guarantee, amongst others, privacy and integrity of their data. These can be ensured by using well-established protocols; the best protocol, however, is useless if not all parties involved in a communication have a correct implementation of the protocol and a...... Generator framework based on the LySatool and a translator from the LySa language into C or Java....... necessary tools. In this paper, we present the Protocol Implementation Generator (PiG), a framework that can be used to add protocol generation to protocol negotiation, or to easily share and implement new protocols throughout a network. PiG enables the sharing, verification, and translation...

When Generations Collide

Science.gov (United States)

Fogg, Piper

2008-01-01

When four generations converge in the academic workplace, it can create serious culture clashes. It is happening across college campuses--in offices as diverse as admissions, student affairs, legal affairs, and technology. It is especially striking in the faculty ranks, where generational challenges have extra significance amid recruiting efforts,…

Breathing difficulties - first aid

Science.gov (United States)

... your home. If you have asthma, see the article on asthma to learn ways to manage it. Make sure your child gets the whooping cough (pertussis) vaccine . Make sure your tetanus booster is up to date. When traveling by airplane, get up and walk around every few hours ...

Solar thermal aided power generation

International Nuclear Information System (INIS)

Hu, Eric; Yang, YongPing; Nishimura, Akira; Yilmaz, Ferdi; Kouzani, Abbas

2010-01-01

Fossil fuel based power generation is and will still be the back bone of our world economy, albeit such form of power generation significantly contributes to global CO 2 emissions. Solar energy is a clean, environmental friendly energy source for power generation, however solar photovoltaic electricity generation is not practical for large commercial scales due to its cost and high-tech nature. Solar thermal is another way to use solar energy to generate power. Many attempts to establish solar (solo) thermal power stations have been practiced all over the world. Although there are some advantages in solo solar thermal power systems, the efficiencies and costs of these systems are not so attractive. Alternately by modifying, if possible, the existing coal-fired power stations to generate green sustainable power, a much more efficient means of power generation can be reached. This paper presents the concept of solar aided power generation in conventional coal-fired power stations, i.e., integrating solar (thermal) energy into conventional fossil fuelled power generation cycles (termed as solar aided thermal power). The solar aided power generation (SAPG) concept has technically been derived to use the strong points of the two technologies (traditional regenerative Rankine cycle with relatively higher efficiency and solar heating at relatively low temperature range). The SAPG does not only contribute to increase the efficiencies of the conventional power station and reduce its emission of the greenhouse gases, but also provides a better way to use solar heat to generate the power. This paper presents the advantages of the SAPG at conceptual level.

Photovoltaic Bias Generator

Science.gov (United States)

2018-02-01

Department of the Army position unless so designated by other authorized documents. Citation of manufacturer’s or trade names does not constitute an... Interior view of the photovoltaic bias generator showing wrapped-wire side of circuit board...3 Fig. 4 Interior view of the photovoltaic bias generator showing component side of circuit board

Fourth-generation storage rings

International Nuclear Information System (INIS)

Galayda, J. N.

1999-01-01

It seems clear that a linac-driven free-electron laser is the accepted prototype of a fourth-generation facility. This raises two questions: can a storage ring-based light source join the fourth generation? Has the storage ring evolved to its highest level of performance as a synchrotrons light source? The answer to the second question is clearly no. The author thinks the answer to the first question is unimportant. While the concept of generations has been useful in motivating thought and effort towards new light source concepts, the variety of light sources and their performance characteristics can no longer be usefully summed up by assignment of a ''generation'' number

Auxiliary Deep Generative Models

DEFF Research Database (Denmark)

Maaløe, Lars; Sønderby, Casper Kaae; Sønderby, Søren Kaae

2016-01-01

Deep generative models parameterized by neural networks have recently achieved state-of-the-art performance in unsupervised and semi-supervised learning. We extend deep generative models with auxiliary variables which improves the variational approximation. The auxiliary variables leave...... the generative model unchanged but make the variational distribution more expressive. Inspired by the structure of the auxiliary variable we also propose a model with two stochastic layers and skip connections. Our findings suggest that more expressive and properly specified deep generative models converge...... faster with better results. We show state-of-the-art performance within semi-supervised learning on MNIST (0.96%), SVHN (16.61%) and NORB (9.40%) datasets....

EPRI steam generator programs

International Nuclear Information System (INIS)

Martel, L.J.; Passell, T.O.; Bryant, P.E.C.; Rentler, R.M.

1977-01-01

The paper describes the current overall EPRI steam generator program plan and some of the ongoing projects. Because of the recent occurrence of a corrosion phenomenon called ''denting,'' which has affected a number of operating utilities, an expanded program plan is being developed which addresses the broad and urgent needs required to achieve improved steam generator reliability. The goal of improved steam generator reliability will require advances in various technologies and also a management philosophy that encourages conscientious efforts to apply the improved technologies to the design, procurement, and operation of plant systems and components that affect the full life reliability of steam generators

Welcome to the iGeneration!

Science.gov (United States)

Rosen, Larry

2010-01-01

Defining and understanding a generation of Americans has always been difficult until years after the generation ends. Although there is universal agreement on the Baby Boomer generation (1946-1964) and most people agree that Generation X started in 1965 and ended around 1979, after that it gets murky. In his research, the author believes that the…

Procedure for generating steam and steam generator for operating said procedure

International Nuclear Information System (INIS)

Chlique, Bernard.

1975-01-01

This invention concerns the generation of steam by bringing the water to be vaporised into indirect thermal exchange relation with the heating steam which condenses when passing in series, along alternate routes, through bundles of tubes immersed in a vaporising chamber. A number of steam generators working on this principle already exist. The purpose of the invention is to modify the operating method of these steam generators by means of a special disposition making it possible to build a compact unit including an additional bundle of tubes heated by the condensates collected at the outlet of each bundle through which the heating steam passes [fr

Energy generation device

International Nuclear Information System (INIS)

Araki, Takashi; Tatsumi, Masami; Tada, Koji.

1990-01-01

In a reaction estimated as nuclear fusion, a portion near of electrode is heated locally to a high temperature by the heat of the reaction generated on the electrode, by which the electrode is melted or heavy water is boiled. Then, Continuous reaction is difficult and not practical. In view of the above, a cathode made of deuterium absorbing materials is put into heavy water and electric current is supplied, to continuously take place the reaction and an anode is disposed in a cylindrical cathode to cause reaction of energy generation therein in order to continuously take out the generated energy to the outside safely. Further, heavy water is circulated inside the cylindrical cathode to externally take out heavy water the temperature of which is elevated by the generated energy, and fresh heavy water is supplied to the inside of the cylindrical cathode. Thus, heavy water does not boil on the electrode, temperature elevation can be suppressed and melting of the electrode itself can be prevented. (N.H.)

Deep Convolutional Generative Adversarial Network for Procedural 3D Landscape Generation Based on DEM

OpenAIRE

Wulff-Jensen, Andreas; Rant, Niclas Nerup; Møller, Tobias Nordvig; Billeskov, Jonas Aksel

2018-01-01

This paper proposes a novel framework for improving procedural generation of 3D landscapes using machine learning. We utilized a Deep Convolutional Generative Adversarial Network (DC-GAN) to generate heightmaps. The network was trained on a dataset consisting of Digital Elevation Maps (DEM) of the alps. During map generation, the batch size and learning rate were optimized for the most efficient and satisfying map production. The diversity of the final output was tested against Perlin noise u...

Spherical neutron generator

Science.gov (United States)

Leung, Ka-Ngo

2006-11-21

A spherical neutron generator is formed with a small spherical target and a spherical shell RF-driven plasma ion source surrounding the target. A deuterium (or deuterium and tritium) ion plasma is produced by RF excitation in the plasma ion source using an RF antenna. The plasma generation region is a spherical shell between an outer chamber and an inner extraction electrode. A spherical neutron generating target is at the center of the chamber and is biased negatively with respect to the extraction electrode which contains many holes. Ions passing through the holes in the extraction electrode are focused onto the target which produces neutrons by D-D or D-T reactions.

Generation Expansion Planning Considering Integrating Large-scale Wind Generation

DEFF Research Database (Denmark)

Zhang, Chunyu; Ding, Yi; Østergaard, Jacob

2013-01-01

necessitated the inclusion of more innovative and sophisticated approaches in power system investment planning. A bi-level generation expansion planning approach considering large-scale wind generation was proposed in this paper. The first phase is investment decision, while the second phase is production...... optimization decision. A multi-objective PSO (MOPSO) algorithm was introduced to solve this optimization problem, which can accelerate the convergence and guarantee the diversity of Pareto-optimal front set as well. The feasibility and effectiveness of the proposed bi-level planning approach and the MOPSO...

Modeling and analysis with induction generators

CERN Document Server

Simões, M Godoy

2014-01-01

ForewordPrefaceAcknowledgmentsAuthorsPrinciples of Alternative Sources of Energy and Electric GenerationScope of This ChapterLegal DefinitionsPrinciples of Electrical ConversionBasic Definitions of Electrical PowerCharacteristics of Primary SourcesCharacteristics of Remote Industrial, Commercial, and Residential Sites and Rural EnergySelection of the Electric GeneratorInterfacing Primary Source, Generator, and LoadExample of a Simple Integrated Generating and Energy-Storing SystemSolved ProblemsSuggested ProblemsReferencesSteady-State Model of Induction GeneratorsScope of This ChapterInterconnection and Disconnection of the Electric Distribution NetworkRobustness of Induction GeneratorsClassical Steady-State Representation of the Asynchronous MachineGenerated PowerInduced TorqueRepresentation of Induction Generator LossesMeasurement of Induction Generator ParametersBlocked Rotor Test (s = 1)No-Load Test (s = 0)Features of Induction Machines Working as Generators Interconnected to the Distribution NetworkHigh-...

Steam generator tube failures

International Nuclear Information System (INIS)

MacDonald, P.E.; Shah, V.N.; Ward, L.W.; Ellison, P.G.

1996-04-01

A review and summary of the available information on steam generator tubing failures and the impact of these failures on plant safety is presented. The following topics are covered: pressurized water reactor (PWR), Canadian deuterium uranium (CANDU) reactor, and Russian water moderated, water cooled energy reactor (VVER) steam generator degradation, PWR steam generator tube ruptures, the thermal-hydraulic response of a PWR plant with a faulted steam generator, the risk significance of steam generator tube rupture accidents, tubing inspection requirements and fitness-for-service criteria in various countries, and defect detection reliability and sizing accuracy. A significant number of steam generator tubes are defective and are removed from service or repaired each year. This wide spread damage has been caused by many diverse degradation mechanisms, some of which are difficult to detect and predict. In addition, spontaneous tube ruptures have occurred at the rate of about one every 2 years over the last 20 years, and incipient tube ruptures (tube failures usually identified with leak detection monitors just before rupture) have been occurring at the rate of about one per year. These ruptures have caused complex plant transients which have not always been easy for the reactor operators to control. Our analysis shows that if more than 15 tubes rupture during a main steam line break, the system response could lead to core melting. Although spontaneous and induced steam generator tube ruptures are small contributors to the total core damage frequency calculated in probabilistic risk assessments, they are risk significant because the radionuclides are likely to bypass the reactor containment building. The frequency of steam generator tube ruptures can be significantly reduced through appropriate and timely inspections and repairs or removal from service

Next generation initiation techniques

Science.gov (United States)

Warner, Tom; Derber, John; Zupanski, Milija; Cohn, Steve; Verlinde, Hans

1993-01-01

Four-dimensional data assimilation strategies can generally be classified as either current or next generation, depending upon whether they are used operationally or not. Current-generation data-assimilation techniques are those that are presently used routinely in operational-forecasting or research applications. They can be classified into the following categories: intermittent assimilation, Newtonian relaxation, and physical initialization. It should be noted that these techniques are the subject of continued research, and their improvement will parallel the development of next generation techniques described by the other speakers. Next generation assimilation techniques are those that are under development but are not yet used operationally. Most of these procedures are derived from control theory or variational methods and primarily represent continuous assimilation approaches, in which the data and model dynamics are 'fitted' to each other in an optimal way. Another 'next generation' category is the initialization of convective-scale models. Intermittent assimilation systems use an objective analysis to combine all observations within a time window that is centered on the analysis time. Continuous first-generation assimilation systems are usually based on the Newtonian-relaxation or 'nudging' techniques. Physical initialization procedures generally involve the use of standard or nonstandard data to force some physical process in the model during an assimilation period. Under the topic of next-generation assimilation techniques, variational approaches are currently being actively developed. Variational approaches seek to minimize a cost or penalty function which measures a model's fit to observations, background fields and other imposed constraints. Alternatively, the Kalman filter technique, which is also under investigation as a data assimilation procedure for numerical weather prediction, can yield acceptable initial conditions for mesoscale models. The

Generation Y Perspectives

Science.gov (United States)

Skytland, Nicholas; Painting, Kristen; Barrera, Aaron; Fitzpatrick, Garret

2008-01-01

This viewgraph presentation reviews the perception of NASA and the importance of engaging those people born between 1977 and 2000, also known as Generation Y. It examines some of the differences in attitudes and experiences, and how it reflects on how they view NASA. It also discusses use of the internet in connecting to the people from that generation.

Generativity does not necessarily satisfy all your needs: Associations among cultural demand for generativity, generative concern, generative action, and need satisfaction in the elderly in four cultures

Czech Academy of Sciences Publication Activity Database

Hofer, J.; Busch, H.; Au, A.; Poláčková Šolcová, Iva; Tavel, P.; Wong, T.T.

2016-01-01

Roč. 52, č. 3 (2016), s. 509-519 ISSN 0012-1649 R&D Projects: GA ČR(CZ) GP14-02889P Institutional support: RVO:68081740 Keywords : generative concern * internalized cultural demands * value orientations * generative behavior * basic need satisfaction * culture Subject RIV: AN - Psychology Impact factor: 3.228, year: 2016

Horizontal steam generator thermal-hydraulics

Energy Technology Data Exchange (ETDEWEB)

Ubra, O. [SKODA Praha Company, Prague (Czechoslovakia); Doubek, M. [Czech Technical Univ., Prague (Czechoslovakia)

1995-09-01

Horizontal steam generators are typical components of nuclear power plants with pressure water reactor type VVER. Thermal-hydraulic behavior of horizontal steam generators is very different from the vertical U-tube steam generator, which has been extensively studied for several years. To contribute to the understanding of the horizontal steam generator thermal-hydraulics a computer program for 3-D steady state analysis of the PGV-1000 steam generator has been developed. By means of this computer program, a detailed thermal-hydraulic and thermodynamic study of the horizontal steam generator PGV-1000 has been carried out and a set of important steam generator characteristics has been obtained. The 3-D distribution of the void fraction and 3-D level profile as functions of load and secondary side pressure have been investigated and secondary side volumes and masses as functions of load and pressure have been evaluated. Some of the interesting results of calculations are presented in the paper.

Generative Contexts

Science.gov (United States)

Lyles, Dan Allen

Educational research has identified how science, technology, engineering, and mathematics (STEM) practice and education have underperforming metrics in racial and gender diversity, despite decades of intervention. These disparities are part of the construction of a culture of science that is alienating to these populations. Recent studies in a social science framework described as "Generative Justice" have suggested that the context of social and scientific practice might be modified to bring about more just and equitable relations among the disenfranchised by circulating the value they and their non-human allies create back to them in unalienated forms. What is not known are the underlying principles of social and material space that makes a system more or less generative. I employ an autoethnographic method at four sites: a high school science class; a farm committed to "Black and Brown liberation"; a summer program geared towards youth environmental mapping; and a summer workshop for Harlem middle school students. My findings suggest that by identifying instances where material affinity, participatory voice, and creative solidarity are mutually reinforcing, it is possible to create educational contexts that generate unalienated value, and circulate it back to the producers themselves. This cycle of generation may help explain how to create systems of justice that strengthen and grow themselves through successive iterations. The problem of lack of diversity in STEM may be addressed not merely by recruiting the best and the brightest from underrepresented populations, but by changing the context of STEM education to provide tools for its own systematic restructuring.

Generators for gearless wind energy converters

Energy Technology Data Exchange (ETDEWEB)

Grauers, A. [Chalmers Univ. of Technology, Goeteborg (Sweden). Dept. of Electric Power Engineering

1996-12-01

This paper discusses some design alternatives for directly driven generators, and one specific generator type is investigated for a wide range of rated power. First, the specification for a directly driven generator is presented, then different design alternatives are discussed. A radial-flux permanent magnet generator for frequency converter connection has been chosen for a more detailed investigation. The design, optimization and performance of that generator type are presented. Generators from 30 kW to 3 MW are designed and compared with conventional four-pole generators with gear. It is found that a directly driven generator can be more efficient than a conventional generator and gear and have a rather small diameter and a low active weight. 8 refs, 7 figs, 2 tabs

Making Sure They Make It! Best Practices for Ensuring the Academic Success of First-Generation College Students. CIC/Walmart College Success Awards Report

Science.gov (United States)

Strand, Kerry J.

2013-01-01

A baccalaureate degree is essential to success in the contemporary United States. The degree offers improved economic security and the development of capabilities such as critical thinking, effective communication, quantitative reasoning, creativity, problem solving, personal and social responsibility, and social and cultural capital. Failure to…

Optimized Generator Designs for the DTU 10-MW Offshore Wind Turbine using GeneratorSE: Preprint

Energy Technology Data Exchange (ETDEWEB)

Sethuraman, Latha; Maness, Michael; Dykes, Katherine

2017-01-01

Compared to land-based applications, offshore wind imposes challenges for the development of next generation wind turbine generator technology. Direct-drive generators are believed to offer high availability, efficiency, and reduced operation and maintenance requirements; however, previous research suggests difficulties in scaling to several megawatts or more in size. The resulting designs are excessively large and/or massive, which are major impediments to transportation logistics, especially for offshore applications. At the same time, geared wind turbines continue to sustain offshore market growth through relatively cheaper and lightweight generators. However, reliability issues associated with mechanical components in a geared system create significant operation and maintenance costs, and these costs make up a large portion of overall system costs offshore. Thus, direct-drive turbines are likely to outnumber their gear-driven counterparts for this market, and there is a need to review the costs or opportunities of building machines with different types of generators and examining their competitiveness at the sizes necessary for the next generation of offshore wind turbines. In this paper, we use GeneratorSE, the National Renewable Energy Laboratory's newly developed systems engineering generator sizing tool to estimate mass, efficiency, and the costs of different generator technologies satisfying the electromagnetic, structural, and basic thermal design requirements for application in a very large-scale offshore wind turbine such as the Technical University of Denmark's (DTU) 10-MW reference wind turbine. For the DTU reference wind turbine, we use the previously mentioned criteria to optimize a direct-drive, radial flux, permanent-magnet synchronous generator; a direct-drive electrically excited synchronous generator; a medium-speed permanent-magnet generator; and a high-speed, doubly-fed induction generator. Preliminary analysis of leveled costs of

Accuracy, reproducibility, and time efficiency of dental measurements using different technologies.

Science.gov (United States)

Grünheid, Thorsten; Patel, Nishant; De Felippe, Nanci L; Wey, Andrew; Gaillard, Philippe R; Larson, Brent E

2014-02-01

Historically, orthodontists have taken dental measurements on plaster models. Technological advances now allow orthodontists to take these measurements on digital models. In this study, we aimed to assess the accuracy, reproducibility, and time efficiency of dental measurements taken on 3 types of digital models. emodels (GeoDigm, Falcon Heights, Minn), SureSmile models (OraMetrix, Richardson, Tex), and AnatoModels (Anatomage, San Jose, Calif) were made for 30 patients. Mesiodistal tooth-width measurements taken on these digital models were timed and compared with those on the corresponding plaster models, which were used as the gold standard. Accuracy and reproducibility were assessed using the Bland-Altman method. Differences in time efficiency were tested for statistical significance with 1-way analysis of variance. Measurements on SureSmile models were the most accurate, followed by those on emodels and AnatoModels. Measurements taken on SureSmile models were also the most reproducible. Measurements taken on SureSmile models and emodels were significantly faster than those taken on AnatoModels and plaster models. Tooth-width measurements on digital models can be as accurate as, and might be more reproducible and significantly faster than, those taken on plaster models. Of the models studied, the SureSmile models provided the best combination of accuracy, reproducibility, and time efficiency of measurement. Copyright © 2014 American Association of Orthodontists. Published by Mosby, Inc. All rights reserved.

Steam generators - problems and prognosis

International Nuclear Information System (INIS)

Tapping, R.L.

1997-05-01

Steam-generator problems, largely a consequence of corrosion and fouling, have resulted in increased inspection requirements and more regulatory attention to steam-generator integrity. In addition, utilities have had to develop steam-generator life-management strategies, including cleaning and replacement, to achieve design life. This paper summarizes the pertinent data to 1993/1994, and presents an overview of current steam-generator management practices. (author)

What Is the Best NGS Enrichment Method for the Molecular Diagnosis of Monogenic Diabetes and Obesity?

Directory of Open Access Journals (Sweden)

Julien Philippe

Full Text Available Molecular diagnosis of monogenic diabetes and obesity is of paramount importance for both the patient and society, as it can result in personalized medicine associated with a better life and it eventually saves health care spending. Genetic clinical laboratories are currently switching from Sanger sequencing to next-generation sequencing (NGS approaches but choosing the optimal protocols is not easy. Here, we compared the sequencing coverage of 43 genes involved in monogenic forms of diabetes and obesity, and variant detection rates, resulting from four enrichment methods based on the sonication of DNA (Agilent SureSelect, RainDance technologies, or using enzymes for DNA fragmentation (Illumina Nextera, Agilent HaloPlex. We analyzed coding exons and untranslated regions of the 43 genes involved in monogenic diabetes and obesity. We found that none of the methods achieves yet full sequencing of the gene targets. Nonetheless, the RainDance, SureSelect and HaloPlex enrichment methods led to the best sequencing coverage of the targets; while the Nextera method resulted in the poorest sequencing coverage. Although the sequencing coverage was high, we unexpectedly found that the HaloPlex method missed 20% of variants detected by the three other methods and Nextera missed 10%. The question of which NGS technique for genetic diagnosis yields the highest diagnosis rate is frequently discussed in the literature and the response is still unclear. Here, we showed that the RainDance enrichment method as well as SureSelect, which are both based on the sonication of DNA, resulted in a good sequencing quality and variant detection, while the use of enzymes to fragment DNA (HaloPlex or Nextera might not be the best strategy to get an accurate sequencing.

Generation 4 and the Nea

International Nuclear Information System (INIS)

Dujardin, T.

2002-01-01

In the previous edition of NEA News, W. D. Magwood of the US Department of Energy (DOE) outlined the future of nuclear energy in the context of the new US national energy policy. He cited the Generation IV initiative as a mechanism to implement a longer-term aspect of this policy. Although initiated in the US, the Generation IV initiative has quickly become an international effort and today ten countries are participating in the Generation IV International Forum (GIF). This article briefly reviews the context of Generation IV and describes NEA involvement in the Generation IV process. (author)

Glas generator for the steam gasification of coal with nuclear generated heat

International Nuclear Information System (INIS)

Buchner, G.

1980-01-01

The use of heat from a High Temperature Reactor (HTR) for the steam gasification of coal saves coal, which otherwise is burnt to generate the necessary reaction heat. The gas generator for this process, a horizontal pressure vessel, contains a fluidized bed of coal and steam. An ''immersion-heater'' type of heat exchanger introduces the nuclear generated heat to the process. Some special design problems of this gasifier are presented. Reference is made to the present state of development of the steam gasification process with heat from high temperature reactors. (author)

The Gel Generator option

International Nuclear Information System (INIS)

Boyd, R.E.

1999-01-01

The development of a national policy for guaranteeing an ample supply of 99m Tc to nuclear medicine, involves issues which go beyond the means by which radioactivation is achieved. Indeed, in such an exercise the pragmatic dictates of business and the sensitivities of politics must also be taken into account. Furthermore where a preference towards the nuclear reactor or the potential of cyclotrons is being questioned, the debate is incomplete if the only options that are considered are the fission-based 99 Mo generator versus the direct cyclotron production of 99m Tc. There is a third option (also neutron γ-based), an alternative to the fission 99 Mo generator, which ought not be overlooked. The application of low specific activity (n,γ) 99 Mo to a new type of generator, the Gel Generator, has been the focus of much research, particularly in Australia and more recently in China. After the initial concept had been established in the laboratory, the Australian researchers then undertook a comprehensive program of tests on the Gel Generator to assess its potential, either in the clinical laboratory or the centralised radiopharmacy, for supplying 99m Tc suitable for nuclear medicine. The outcome of this program was a clear indication that the Gel Generator innovation had the capability to provide both technical and economic advantages to the nuclear medicine industry. These advantages are described. Since that time the Gel Generator has been selected for routine use in China where it now satisfies more than 30% of the 99m Tc demand. (author)

Acceptance of a reusable self-injection device for recombinant human growth hormone: final data from a questionnaire-based, cross-sectional, international, multicenter, observational study in pediatric patients

Directory of Open Access Journals (Sweden)

Schnabel D

2016-09-01

Full Text Available Dirk Schnabel,1 Carl-Joachim Partsch,2 Muriel Houang,3 Sarah Ehtisham,4 Helen Johnstone,5 Markus Zabransky,6 Wieland Kiess7 1Pediatric Endocrinology, Center for Chronic Sick Children, Otto-Heubner-Centrum für Kinder- und Jugendmedizin, Charite, University Medicine, Berlin, Germany; 2Endokrinologikum Hamburg, Hamburg, Germany; 3Explorations Fonctionnelles Endocriniennes, Hôpital Armand Trousseau, Paris, France; 4Mediclinic City Hospital, Dubai Healthcare City, Dubai, United Arab Emirates; 5The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle, UK; 6Sandoz International GmbH, Holzkirchen, 7Department of Women and Child Health, Hospital for Children and Adolescents, University Hospitals, University of Leipzig, Leipzig, Germany Background: A questionnaire-based survey was conducted to assess attitudes toward a reusable self-injection system (SurePal™ among pediatric patients with growth disturbances who were prescribed treatment with Omnitrope® within routine clinical practice.Methods: This was a multicenter, observational study, incorporated into the noninterventional PAtients TReated with Omnitrope® (PATRO Children study. Included subjects, or their caregivers, completed a questionnaire on the following five main areas: attractiveness of SurePal™, training received, using the device, the low drug wastage system, and experience versus other devices used previously (pretreated patients. Responses were based on a 5-point scale, with 2 being the best possible outcome and −2 the worst possible outcome.Results: In total, 550 patients were included in this study (338 from France, 169 from Germany, and 43 from the UK. The mean age ± standard deviation of participants was 10.8±3.5 years; the majority (57% were male and growth hormone treatment naïve (88%. Almost half (49.8% of children prepared their SurePal™ for injection themselves and 45.5% performed injections themselves. As patients progressed into their teens, the majority

Status of thermal power generation in India-Perspectives on capacity, generation and carbon dioxide emissions

International Nuclear Information System (INIS)

Ghosh, Subhodip

2010-01-01

India's reliance on fossil-fuel based electricity generation has aggravated the problem of high carbon dioxide (CO 2 ) emissions from combustion of fossil fuels, primarily coal, in the country's energy sector. The objective of this paper is to analyze thermal power generation in India for a four-year period and determine the net generation from thermal power stations and the total and specific CO 2 emissions. The installed generating capacity, net generation and CO 2 emissions figures for the plants have been compared and large generators, large emitters, fuel types and also plant vintage have been identified. Specific emissions and dates of commissioning of plants have been taken into account for assessing whether specific plants need to be modernized. The focus is to find out areas and stations which are contributing more to the total emissions from all thermal power generating stations in the country and identify the overall trends that are emerging.

Rechargeable radioactive isotope generator

International Nuclear Information System (INIS)

Thornton, A.K.; Cerone, F.E.

1978-01-01

The description is given of a rechargeable radioactive isotope generator having the following features: a box containing a transport shield, a shielded generator including elements for the absorption and holding of the parent isotope, an eluant tank, a first pipe causing this tank to communicate with the transport shield, a second pipe causing this transport shield to communicate with the shielded generator and a third pipe placing the shielded generator in communication with the outside of the unit. It also includes a shelf across the external front part of the unit a part of which is shielded by external components, a shielded elution flask in which the eluate is poured and a filter set at a point between the flask and the third pipe [fr

Generation and memory for contextual detail.

Science.gov (United States)

Mulligan, Neil W

2004-07-01

Generation enhances item memory but may not enhance other aspects of memory. In 12 experiments, the author investigated the effect of generation on context memory, motivated in part by the hypothesis that generation produces a trade-off in encoding item and contextual information. Participants generated some study words (e.g., hot-c__) and read others (e.g., hot-cold). Generation consistently enhanced item memory but did not enhance context memory. More specifically, generation disrupted context memory for the color of the target word but did not affect context memory for location, background color, and cue-word color. The specificity of the negative generation effect in context memory argues against a general item-context trade-off. A processing account of generation meets greater success. In addition, the results provide no evidence that generation enhances recollection of contextual details. Copyright 2004 APA, all rights reserved

Third generation nuclear plants

Science.gov (United States)

Barré, Bertrand

2012-05-01

After the Chernobyl accident, a new generation of Light Water Reactors has been designed and is being built. Third generation nuclear plants are equipped with dedicated systems to insure that if the worst accident were to occur, i.e. total core meltdown, no matter how low the probability of such occurrence, radioactive releases in the environment would be minimal. This article describes the EPR, representative of this "Generation III" and a few of its competitors on the world market.

High-voltage pulse generator

International Nuclear Information System (INIS)

Roche, M.

1991-01-01

This generator is composed of elementary impulsion generators connected in series. Each of them have -storage capacities, and switchs. The closure of switch causes an accumulator discharge. -control means of these switches are electrically independent and forecast to switch on by pulses in the same time -loading means of storage means have a very low enough electric dependence not to induce a loss of power at the exit of the generator. Applications to particle accelerators [fr

Semantic attributes based texture generation

Science.gov (United States)

Chi, Huifang; Gan, Yanhai; Qi, Lin; Dong, Junyu; Madessa, Amanuel Hirpa

2018-04-01

Semantic attributes are commonly used for texture description. They can be used to describe the information of a texture, such as patterns, textons, distributions, brightness, and so on. Generally speaking, semantic attributes are more concrete descriptors than perceptual features. Therefore, it is practical to generate texture images from semantic attributes. In this paper, we propose to generate high-quality texture images from semantic attributes. Over the last two decades, several works have been done on texture synthesis and generation. Most of them focusing on example-based texture synthesis and procedural texture generation. Semantic attributes based texture generation still deserves more devotion. Gan et al. proposed a useful joint model for perception driven texture generation. However, perceptual features are nonobjective spatial statistics used by humans to distinguish different textures in pre-attentive situations. To give more describing information about texture appearance, semantic attributes which are more in line with human description habits are desired. In this paper, we use sigmoid cross entropy loss in an auxiliary model to provide enough information for a generator. Consequently, the discriminator is released from the relatively intractable mission of figuring out the joint distribution of condition vectors and samples. To demonstrate the validity of our method, we compare our method to Gan et al.'s method on generating textures by designing experiments on PTD and DTD. All experimental results show that our model can generate textures from semantic attributes.

Micromotor-based energy generation.

Science.gov (United States)

Singh, Virendra V; Soto, Fernando; Kaufmann, Kevin; Wang, Joseph

2015-06-01

A micromotor-based strategy for energy generation, utilizing the conversion of liquid-phase hydrogen to usable hydrogen gas (H2), is described. The new motion-based H2-generation concept relies on the movement of Pt-black/Ti Janus microparticle motors in a solution of sodium borohydride (NaBH4) fuel. This is the first report of using NaBH4 for powering micromotors. The autonomous motion of these catalytic micromotors, as well as their bubble generation, leads to enhanced mixing and transport of NaBH4 towards the Pt-black catalytic surface (compared to static microparticles or films), and hence to a substantially faster rate of H2 production. The practical utility of these micromotors is illustrated by powering a hydrogen-oxygen fuel cell car by an on-board motion-based hydrogen and oxygen generation. The new micromotor approach paves the way for the development of efficient on-site energy generation for powering external devices or meeting growing demands on the energy grid. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Laboratory generation of gravitational waves

International Nuclear Information System (INIS)

Pinto, I.M.; Rotoli, G.

1988-01-01

The authors have performed calculations on the basic type of gravitational wave electromagnetic laboratory generators. Their results show that laboratory generations of gravitational wave is at limit of state-of-the-art of present-day giant electromagnetic field generation

CO-GENERATION AND OPERATING NETWORK CELLS

DEFF Research Database (Denmark)

Nielsen, John Eli

2008-01-01

In Denmark several thousands of generators are connected to the distribution system (10 kV and 0.4 kV). The production from these generators many times exceeds the load. The generators can be divided into two types, Wind turbines and CHP generators. These generators have one thing in common......, the power system they are connected to, has never been designed to accommodate so many generators. In Denmark we now expect a third type of generators: the microgenerators. This time we want to be prepared. Denmark therefore now participates in a lot of research and full scale demonstration projects. A key...

Millennials at Work: Investigating the Specificity of Generation Y versus Other Generations

Directory of Open Access Journals (Sweden)

Florina PÎNZARU

2016-06-01

Full Text Available The present study intends to discuss the psychological profile of Generation Y versus other generations.The differences between Millennials and other generations are addressed in terms of values, personality characteristics, and reactions under stress. The topicality and relevance of the research theme are supported by the fact that most of the people who are currently employed in companies all over the world are members of the Generation Y. This situation requires a proper investigation of the characteristics and specificity of the so-called Millennials with a view to provide organizations with pertinent inputs for designing well-informed policies and for smoothly integrating Millennials in the workplace. To this end, Hogan Assessments personality inventories were applied online to more than 1000 persons from Generation Y (up to 29 years old and more than 3000 persons from other generations (above 29 years old. Among others, the findings show that Millennials are motivated by recognition, public acknowledgment, instant and frequent positive feedback and gratification. As they need balance between personal and professional life, as well as a comfortable environment, they require a flexible work schedule, resent staying after hours. Being motivated to become part of various social networks, work in various teams, Millennials are able to easily find satisfaction in missions that involve interactions with new persons coming from different cultures and geographical areas. They are motivated by work in a nonconformist environment without strict rules and traditional work approaches, they tend to challenge the status quo and they will not be patient to keep the same job many years.

Power generating device

Energy Technology Data Exchange (ETDEWEB)

Onodera, Toshihiro

1989-05-02

The existing power generating device consisting of static components only lacks effective measures to utilize solar energy and maintain power generation, hence it is inevitable to make the device much larger and more complicated in order to utilize it as the primary power source for artificial satellites. In view of the above, in order to offer a power generating device useful for the primary power source for satellites which is simple and can keep power generation by solar energy, this invention proposes a power generating device composed of the following elements: (1) a rectangular parallelopiped No. II superconductor plate; (2) a measure to apply a magnetic field to one face of the above superconductor plate; (3) a measure to provide a temperature difference within the range between the starting temperature and the critical temperature of superconductivity to a pair of faces meeting at right angles with the face to which the magnetic field was applied by the above measure; (4) a measure to provide an electrode on each of the other pair of faces meeting at right angles with the face to which the magnetic field was applied by the above measure and form a closed circuit by connecting the each electrode above to each of a pair of electrodes of the load respectively; and (5) a switching measure which is installed in the closed circuit prepared by the above measure and shuts off the closed circuit when the direction of the electric current running the above closed circuit is reversed. 6 figs.

Plasmonic vortex generator without polarization dependence

Science.gov (United States)

Wang, Han; Liu, Lixia; Liu, Chunxiang; Li, Xing; Wang, Shuyun; Xu, Qing; Teng, Shuyun

2018-03-01

In view of the limitations of vortex generators with polarization dependence at present, we propose a plasmonic vortex generator composed of rectangular holes etched in silver film, in which the optical vortex can be generated under arbitrary linearly polarized light illumination. Two sets of rectangular holes are arranged equidistantly on a circle and rotate in postulate directions. Theoretical analysis provides the design principle for the vortex generator, and numerical simulations give guidance on designating the vortex generator parameters. Experimental measurements verify the performance of the proposed vortex generator. Moreover, two alternative structures for the generation of a plasmonic vortex are also provided in this paper. The resulting perfect vortex, compact structure and flexible illumination conditions will lead to wide applications of this plasmonic vortex generator.

Neutron generator instrumentation at the Department 2350 Neutron Generator Test Facility

International Nuclear Information System (INIS)

Bryant, T.C.; Mowrer, G.R.

1979-06-01

The computer and waveform digitizing capability at the test facility has allowed several changes in the techniques used to test neutron generators. These changes include methods used to calibrate the instrumentation and changes in the operation of the test facility. These changes have increased the efficiency of the test facility as well as increasing both timing and amplitude accuracy of neutron generator waveforms

Generation IV reactors: economics

International Nuclear Information System (INIS)

Dupraz, B.; Bertel, E.

2003-01-01

The operating nuclear reactors were built over a short period: no more than 10 years and today their average age rounds 18 years. EDF (French electricity company) plans to renew its reactor park over a far longer period : 30 years from 2020 to 2050. According to EDF this objective implies 3 constraints: 1) a service life of 50 to 60 years for a significant part of the present operating reactors, 2) to be ready to built a generation 3+ unit in 2020 which infers the third constraint: 3) to launch the construction of an EPR (European pressurized reactor) prototype as soon as possible in order to have it operating in 2010. In this scheme, generation 4 reactor will benefit the feedback experience of generation 3 and will take over in 2030. Economic analysis is an important tool that has been used by the generation 4 international forum to select the likely future reactor systems. This analysis is based on 4 independent criteria: the basic construction cost, the construction time, the operation and maintenance costs and the fuel cycle cost. This analysis leads to the evaluation of the global cost of electricity generation and of the total investment required for each of the reactor system. The former defines the economic competitiveness in a de-regulated energy market while the latter is linked to the financial risk taken by the investor. It appears, within the limits of the assumptions and models used, that generation 4 reactors will be characterized by a better competitiveness and an equivalent financial risk when compared with the previous generation. (A.C.)

TFTR generator load assessment

International Nuclear Information System (INIS)

Heck, F.M.

1975-10-01

Typical experimental load demands on the TFTR generators are illustrated based on the electrical characteristics of the field coils, the coil leads, the main bus work, the various auxiliary bus work, the rectifiers, and transformers. The generator MW capacities are shown to be adequate for the proposed experimental operations with allowances made for variations in the final designs. The generator MVA capacities are shown to be adequate provided portions of the TF and EF rectifiers are freewheeled at selected times

The generation problem

International Nuclear Information System (INIS)

Ecker, G.

1983-01-01

Evidence for the generation structure of quarks and leptons is reviewed. The two main aspects of the generation problem are emphasized. The concept and possible problems of horizontal symmetries are discussed. Two different mechanisms for horizontal symmetries are considered leading to a generalized permutation symmetry in SU(2)sub(L) x u(1) in one case. The second mechanism uses the discrete unbroken subgroup of an axial U(1) with hypercolour anomalies in composite models. A concrete realization in the rishon model is investigated. The two different approaches produce almost identical quark mass matrices for three generations. In addition to a correct prediction for the Cabibbo angle the models yield a very small Kobayashi-Maskawa mixing angle Theta 3 and thus provide for a natural explanation of the smallness of CP violation. (Author)

Third Generation Coaching

DEFF Research Database (Denmark)

Stelter, Reinhard

2016-01-01

German abstract: Auf der Grundlage aktueller Sozialforschung, neuer Lerntheorien und Diskurse der Personalführung entfaltet sich ein neues Verständnis von Coaching und Coaching-Psychologie. In der dritten Generation wird Coaching aus gesellschaftlicher Perspektive betrachtet. Wenn sich die...... Gesellschaft verändert, muss sich auch Coaching als spezifische Form der Interaktion weiterentwickeln: Die Mission des Third Generation Coaching ist die Entwicklung von Nachhaltigkeit in der Anwendung, indem sich der Dialog stärker auf Werte und Sinn-Schaffen ausrichtet, weg vom einengenden Zielfokus hin zur...... Betonung von Aspirationen, Leidenschaften und Werten. In diesem Sinne trägt Third Generation Coaching zur Entfaltung und Weiterentwicklung persönlicher Identität bei – ein entscheidender Faktor für die menschliche Entwicklung in unserer Zeit. Auf der Basis kollaborativer Zusammenarbeit dieses Ansatzes...

Online branding to generation Z

OpenAIRE

Wirokarto, Dewi Alismah

2013-01-01

Mestrado em Marketing/ JEL Classification System: M31, I21, D71 Generation Z is the first generation growing up in a digitalized world, where Internet has become a primary need. Growing up with touch screens, smartphones and tablets impacts the development of this generation. They are born between mid 1990s and 2010. This research will attempt to demonstrate and support the assumption that Generation Z exhibits more Early adopters than the other adopter levels. Analyses...

Highly Reconfigurable Beamformer Stimulus Generator

Science.gov (United States)

Vaviļina, E.; Gaigals, G.

2018-02-01

The present paper proposes a highly reconfigurable beamformer stimulus generator of radar antenna array, which includes three main blocks: settings of antenna array, settings of objects (signal sources) and a beamforming simulator. Following from the configuration of antenna array and object settings, different stimulus can be generated as the input signal for a beamformer. This stimulus generator is developed under a greater concept with two utterly independent paths where one is the stimulus generator and the other is the hardware beamformer. Both paths can be complemented in final and in intermediate steps as well to check and improve system performance. This way the technology development process is promoted by making each of the future hardware steps more substantive. Stimulus generator configuration capabilities and test results are presented proving the application of the stimulus generator for FPGA based beamforming unit development and tuning as an alternative to an actual antenna system.

The nuclear power generation

International Nuclear Information System (INIS)

Serres, R.

1999-01-01

The French nuclear generating industry is highly competitive. The installations have an average age of fifteen years and are half way through their expected life. Nuclear power accounts for 70% of the profits of the French generating company, EDF. Nuclear generation has a minimal effect on the atmosphere and France has a level of CO 2 emissions, thought to be the main cause of the greenhouse effect, half that of Europe as a whole. The air in France is purer than in neighbouring countries, mainly because 75% of all electrical power is generated in nuclear plants and 15% in hydroelectric stations. The operations and maintenance of French nuclear power plants in the service and distribution companies out of a total of 100 000 employees in all, 90 % of whom are based in mainland France. (authors)

Generating Community, Generating Justice? The production and circulation of value in community energy initiatives

Directory of Open Access Journals (Sweden)

Taylor Chase Dotson

2016-12-01

Full Text Available In this paper, we explore the potentialities and interconnections between existing and hypothetical community energy systems and the concept of generative justice. New York State’s more recent official energy plan, for instance, includes provisions for community-scale microgrids, and several European nations offer significant financial support to citizens interested in building micro and intermediate-scale renewable energy systems. Such efforts and technologies appear to promise some degree of generative justice, returning much of the value generated by distributed renewable energy back to the community producing it. However, most currently conceived and implemented community energy systems recirculate value in very narrow and limited ways. Building upon an analysis of New York energy policy and on-the-ground cases, we explore community energy’s potential. What kinds of value are being generated by community energy systems and for whom? How could such efforts be more generative of justice across a broad range of values, not just electrons and dollars? Through the attempt to broaden thinking not only about community energy systems but also the concept of generative justice, we connect technological and organizational configurations of community energy systems and the forms of value they have the potential to generate: including, the production of grassroots energy and organizational expertise, the capacity for local and personal autonomy in energy planning and decision-making, and the enhancement of an affective sense and embodied experience of community. Finally, we examine some of the barriers to realizing more generatively just community energy systems. 

Power generation enhancement in a salinity-gradient solar pond power plant using thermoelectric generator

International Nuclear Information System (INIS)

Ziapour, Behrooz M.; Saadat, Mohammad; Palideh, Vahid; Afzal, Sadegh

2017-01-01

Highlights: • Thermoelectric generator was used and simulated within a salinity-gradient solar pond power plant. • Results showed that the thermoelectric generator can be able to enhance the power plant efficiency. • Results showed that the presented models can be able to produce generation even in the cold months. • The optimum size of area of solar pond based on its effect on efficiency is 50,000 m 2 . - Abstract: Salinity-gradient solar pond (SGSP) has been a reliable supply of heat source for power generation when it has been integrated with low temperature thermodynamics cycles like organic Rankine cycle (ORC). Also, thermoelectric generator (TEG) plays a critical role in the production of electricity from renewable energy sources. This paper investigates the potential of thermoelectric generator as a power generation system using heat from SGSP. In this work, thermoelectric generator was used instead of condenser of ORC with the purpose of improving the performance of system. Two new models of SGSP have been presented as: (1) SGSP using TEG in condenser of ORC without heat exchanger and (2) SGSP using TEG in condenser of ORC with heat exchanger. These proposed systems was evaluated through computer simulations. The ambient conditions were collected from beach of Urmia lake in IRAN. Simulation results indicated that, for identical conditions, the model 1 has higher performance than other model 2. For models 1 and 2 in T LCZ = 90 °C, the overall thermal efficiency of the solar pond power plant, were obtained 0.21% and 0.2% more than ORC without TEG, respectively.

1 MV low-induction pulse generator

International Nuclear Information System (INIS)

Koba, G.I.; Koba, Yu.V.; Slivkov, I.N.; Sukhov, A.D.; Tarumov, Eh.Z.

1980-01-01

A high-voltage pulse generator is described. The generator Uses the Arkadiev-Marx circuit at 1 MV voltage and 12 kJ energy; the inductance of the discharge circuit is 1.3 μN. Low inductance of the generator has been obtained due to the use of low-inductance capacitors and employment of bifilar buses with oil barrier insulation. To provide reliable generator triggering, an ignition circuit has been developed with a resistive coupling between generator steps, based on controlled three-electrode sparkgaps with a distorted field. The generator switching time is slightly dependent on pressure and constitutes 200-300 ns. The generator efficiency is 83%

Distributed generation: definition, benefits and issues

International Nuclear Information System (INIS)

Pepermans, G.; Driesen, J.; Haeseldonckx, D.; Belmans, R.; D'haeseleer, W.

2005-01-01

This paper starts from the observation that there is a renewed interest in small-scale electricity generation. The authors start with a survey of existing small-scale generation technologies and then move on with a discussion of the major benefits and issues of small-scale electricity generation. Different technologies are evaluated in terms of their possible contribution to the listed benefits and issues. Small-scale generation is also commonly called distributed generation, embedded generation or decentralised generation. In a final section, an attempt is made to define the latter concepts more precisely. It appears that there is no consensus on a precise definition as the concept encompasses many technologies and applications

Multi-objective Generation Expansion Planning for Integrating Largescale Wind Generation

DEFF Research Database (Denmark)

Zhang, Chunyu; Ding, Yi; Kang, Chongqing

2013-01-01

Due to the growth of energy consumption, the extensive use of conventional fossil fuels from the exhaustible resources and the environmental concerns, high penetration of renewable energy resources is considerably observed worldwide. Wind power generation is holding the first rank in terms...... of utilization and importance. In the last decade, the growth rate of the global installed wind capacity has been about 30% per annum. Denmark, Germany, and Spain are the first few countries generating 20% of their electricity from wind turbines....

Intersectionality family, generation and breastfeeding

Directory of Open Access Journals (Sweden)

Michelle Araújo Moreira

2013-06-01

Full Text Available Breastfeeding, sociocultural complex and multifaceted process, allows women of the same or of different generations within a group, parental experience and/or develop multiple meanings that can be modified or not depending on the social time in which they lived. Therefore, breastfeeding contributes to the interaction between family members, especially grandmothers, daughters and granddaughters when new generations appreciate lessons learned from the wisdom of a more experienced group. Therefore, it is a qualitative study, descriptive, exploratory-type literature review that had timeless selection for books, dissertations and theses, as series of articles from 1998 to 2008. The objective was to discuss the interface between family, generation and breastfeeding, underscoring the importance of aging and experience of older generations in the process of teaching and learning about breastfeeding to new generations. The literature review was done in the databases SciELO, LILACS and MEDLINE plus books, dissertations and theses, with the keywords: breastfeeding, family and generation. We identified 20 articles, 14 books, dissertations 4, 6 and 2 academic papers theses that were submitted to content analysis. In the analysis, it was noticed that the generations have a close relationship with each other, revealing that aging and maturity of the first generations contribute to greater acquisition of knowledge to be transmitted to younger generations of mothers who breastfeed. We conclude, believing that this study will look amplified, not only of health and related fields, but for those who want to analyze the possibilities of breastfeeding from intergenerational understanding it from the perspective of policymaker’s agents.

Dynamic models for distributed generation resources

Energy Technology Data Exchange (ETDEWEB)

Morched, A.S. [BPR Energie, Sherbrooke, PQ (Canada)

2010-07-01

Distributed resources can impact the performance of host power systems during both normal and abnormal system conditions. This PowerPoint presentation discussed the use of dynamic models for identifying potential interaction problems between interconnected systems. The models were designed to simulate steady state behaviour as well as transient responses to system disturbances. The distributed generators included directly coupled and electronically coupled generators. The directly coupled generator was driven by wind turbines. Simplified models of grid-side inverters, electronically coupled wind generators and doubly-fed induction generators (DFIGs) were presented. The responses of DFIGs to wind variations were evaluated. Synchronous machine and electronically coupled generator responses were compared. The system model components included load models, generators, protection systems, and system equivalents. Frequency responses to islanding events were reviewed. The study demonstrated that accurate simulations are needed to predict the impact of distributed generation resources on the performance of host systems. Advances in distributed generation technology have outpaced the development of models needed for integration studies. tabs., figs.

Design of SMART steam generator cassette

International Nuclear Information System (INIS)

Kim, Y. W.; Kim, J. I.; Jang, M. H.

2001-01-01

Basic design development for the steam generator to be installed in the integral reactor SMART has been performed. Optimization of the steam generator shape, determination of the basic dimension and confirmation of the structural strength have been carried out. Individual steam generator cassette can be replaced in the optimized design concept of steam generator. Shape design of the steam generator cassette has been done on the computer based on 3-D CAE strategy. The structural integrity of the developed steam generator was investigated by performing the dynamic analysis for the steam generator cassette, flow induced vibration analysis for the tube bundle, and the thermo-mechanical analysis for the module header and tube. As for the manufacturing of steam generator, the numerical and the experimental simulation have been carried to control the amount of spring back and to eliminate residual stress. SMART steam generator cassette was developed by a sequential research of the aforementioned activities

Looking ahead to our next generation of nurse leaders: Generation X Nurse Managers.

Science.gov (United States)

Keys, Yolanda

2014-01-01

The present inquiry identifies elements of professional success, and personal and professional fulfilment as defined by Generation X Nurse Managers. Although work concerning Nurse Manager preparation has been documented, there is a paucity of research specific to the generation of nurses next in line to assume leadership roles. For the purposes of this study, a qualitative approach was used to develop insight regarding Generation X Nurse Managers and their perspectives on professional success, personal and professional fulfilment, and organisational environments that are conducive to loyalty and long-term professional commitment. Findings from this study reinforced those identified in the original study in that inflexible organisational cultures, a lack of opportunities for upward mobility, the need to be available at all times, feeling stereotyped or undervalued can all be barriers to members of Generation X perceptions of professional success and professional and personal fulfilment. Study findings suggest that Generation X Nurse Managers would benefit from initiatives focused on better preparation for the Nurse Manager role, openness to innovative scheduling alternatives and tailored support and feedback. © 2014 John Wiley & Sons Ltd.

Y and Z Generations at Workplaces

Directory of Open Access Journals (Sweden)

Bencsik Andrea

2016-09-01

Full Text Available At present, more and more researches deals with the characteristic features of generation Y and generation Z. As it is about the present and future generations, corporate success and the competitive operation are determined by the behav our of these generations in the long-run. Researches justifies that there are significant differences between the two generations despite the similarities. These differences appear rather emphasized in the corporate environment when several questions arise at workplaces in the process of cooperation – especially in the field of knowledge-sharing and knowledge transfer-regarding the characteristics of the two generations. Last year, the authors carried out a quantitative research by questionnaires in order to reveal what the managing of these two generations mean for the managers and also what difficulties occur when the two generations cooperate with each other and with elder generations as well. The main question of the research was how to approach the new generations from the view of HR? Although the research cannot be considered representative (410 respondents participated in the survey, it can give a picture about the examined issues. The hypothesis phrased by the authors was justified according to which of the HR activities have to adapt to the requirements of the new generations upon their appearance.

Powerful nanosecond pulse train generator

International Nuclear Information System (INIS)

Isakov, I.F.; Logachev, E.I.; Opekunov, M.S.; Pechenkin, S.A.; Remnev, G.E.; Usov, Yu.P.

1987-01-01

A generator permitting to shape on the load pulsed with the repetition frequency of 10 3 -10 6 Hz and more is described. The amplitude of shaped voltage pulses is up to 150 kV at pulse duration equal to 50 ns. The generator comprises connected in-series with the load two shaping and two transmission lines realized on the base of the KVI-300 low-ohmic cable. The shaping lines are supplied from two independently connected pulse voltage generators for obtaining time interval between pulses > 10 -6 s; they may be also supplied from one generator for obtaining time interval -6 s. At the expense of reducing losses in the discharge circuit the amplitude of the second pulse grows with increase of time interval between pulses up to 300 ns, further on the curve flat-topping exists. The described generator is used in high-current accelerators, in which the primary negative pulse results in generation of explosive-emission plasma, and the second positive pulse provides ion beam shaping including ions of heavy metal used for production of a potential electrode. The generator multipulse mode is used for successive ion acceleration in the transport system

Laser light absorption and harmonic generation due to self-generated magnetic fields

International Nuclear Information System (INIS)

Kruer, W.L.; Estabrook, K.G.

1977-01-01

It is shown that self-generated magnetic fields can play a significant role in laser light absorption. Even normally incident light will then be resonantly absorbed. Computer simulations and theoretical estimates for this absorption and the concomitant harmonic generation are given for parameters characteristic of some recent experiments

Hybrid preheat/recirculating steam generator

International Nuclear Information System (INIS)

Lilly, G.P.

1985-01-01

The patent describes a hybrid preheat/recirculating steam generator for nuclear power plants. The steam generator utilizes recirculated liquid to preheat incoming liquid. In addition, the steam generator incorporates a divider so as to limit the amount of recirculating water mixed with the feedwater. (U.K.)

Electromechanically generating electricity with a gapped-graphene electric generator

Science.gov (United States)

Dressen, Donald; Golovchenko, Jene

2015-03-01

We demonstrate the fabrication and operation of a gapped-graphene electric generator (G-GEG) device. The G-GEG generates electricity from the mechanical oscillation of droplets of electrolytes and ionic liquids. The spontaneous adsorption of ionic species on graphene charges opposing electric double-layer capacitors (EDLCs) on each half of the device. Modulating the area of contact between the droplet and graphene leads to adsorption/desorption of ions, effectively charging/discharging each EDLC and generating a current. The flow of current supports a potential difference across the G-GEG due to the device's internal impedance. Both the magnitude and polarity of the induced current and voltage show a strong dependence on the type of ionic species used, suggesting that certain ions interact more strongly with graphene than others. We find that a simple model circuit consisting of an AC current source in series with a resistor and a time-varying capacitor accurately predicts the device's dynamic behavior. Additionally, we discuss the effect of graphene's intrinsic quantum capacitance on the G-GEG's performance and speculate on the utility of the device in the context of energy harvesting.

Micro thrust and heat generator

Science.gov (United States)

Garcia, E.J.

1998-11-17

A micro thrust and heat generator have a means for providing a combustion fuel source to an ignition chamber of the micro thrust and heat generator. The fuel is ignited by a ignition means within the micro thrust and heat generator`s ignition chamber where it burns and creates a pressure. A nozzle formed from the combustion chamber extends outward from the combustion chamber and tappers down to a narrow diameter and then opens into a wider diameter where the nozzle then terminates outside of said combustion chamber. The pressure created within the combustion chamber accelerates as it leaves the chamber through the nozzle resulting in pressure and heat escaping from the nozzle to the atmosphere outside the micro thrust and heat generator. The micro thrust and heat generator can be microfabricated from a variety of materials, e.g., of polysilicon, on one wafer using surface micromachining batch fabrication techniques or high aspect ratio micromachining techniques (LIGA). 30 figs.