WorldWideScience

Sample records for ceilings

  1. Multiple Glass Ceilings

    OpenAIRE

    Russo, Giovanni; Hassink, Wolter

    2011-01-01

    Both vertical (between job levels) and horizontal (within job levels) mobility can be sources of wage growth. We find that the glass ceiling operates at both margins. The unexplained part of the wage gap grows across job levels (glass ceiling at the vertical margin) and across the deciles of the intra-job-level wage distribution (glass ceiling at the horizontal margin). This implies that women face many glass ceilings, one for each job level above the second, and that the glass ceiling is a p...

  2. Diffuse ceiling ventilation

    DEFF Research Database (Denmark)

    Zhang, Chen

    Diffuse ceiling ventilation is an innovative ventilation concept where the suspended ceiling serves as air diffuser to supply fresh air into the room. Compared with conventional ventilation systems, diffuse ceiling ventilation can significantly reduce or even eliminate draught risk due to the low...... momentum supply. In addition, this ventilation system uses a ceiling plenum to deliver air and requires less energy consumption for air transport than full-ducted systems. There is a growing interest in applying diffuse ceiling ventilation in offices and other commercial buildings due to the benefits from...... both thermal comfort and energy efficient aspects. The present study aims to characterize the air distribution and thermal comfort in the rooms with diffuse ceiling ventilation. Both the stand-alone ventilation system and its integration with a radiant ceiling system are investigated. This study also...

  3. Diffuse Ceiling Ventilation

    DEFF Research Database (Denmark)

    Zhang, Chen; Heiselberg, Per; Nielsen, Peter V.

    2014-01-01

    As a novel air distribution system, diffuse ceiling ventilation combines the suspended acoustic ceiling with ventilation supply. Due to the low-impulse supply from the large ceiling area, the system does not generate draught when supplying cold air. However, heat sources play an important role...... on thermal comfort in the occupant zone. Another characteristic of this system is its lower pressure drop compared with conventional ventilation systems, which reduces the noise problem and, at the same time, the energy consumption of the fan can be reduced. This review is based on a number of experimental...... and numerical studies on diffuse ceiling ventilation. Performance in terms of thermal comfort, air quality, pressure drop as well as radiant cooling potential are examined. Finally, a discussion on the proper design of the suspended ceiling and plenum to achieve a uniform air distribution and surface...

  4. Diffuse Ceiling Ventilation

    DEFF Research Database (Denmark)

    Zhang, Chen; Yu, Tao; Heiselberg, Per Kvols

    -cooling period and night cooling potential. The investment cost of this ventilation system is about 5-10% lower than the conventional ones, because the acoustic ceiling could be directly applied as air diffuser and the use of plenum to distribute air reduces the cost of ductwork. There is a growing interest...... in applying diffuse ceiling ventilation in offices and other commercial buildings because of the benefits from both thermal comfort and energy efficiency aspects. The design guide introduces the principle and key characteristics of room air distribution with diffuse ceiling ventilation and the design...

  5. Diffuse Ceiling Ventilation

    DEFF Research Database (Denmark)

    Zhang, Chen; Yu, Tao; Heiselberg, Per Kvols

    -cooling period and night cooling potential. The investment cost of this ventilation system is about 5-10% lower than the conventional ones, because the acoustic ceiling could be directly applied as air diffuser and the use of plenum to distribute air reduces the cost of ductwork. There is a growing interest...... and manufacturers and the users of diffuse ceiling technology. The design guide introduces the principle and key characteristics of room air distribution with diffuse ceiling ventilation. It provides an overview of potential benefit and limitations of this technology. The benefits include high thermal comfort, high...

  6. What Glass Ceiling?

    Science.gov (United States)

    Lynch, Michael; Post, Katherine

    1996-01-01

    A recent study drawing on data from the Census Bureau and the Bureau of Labor Statistics suggests that the wage gap between men and women has virtually disappeared, and that the so-called "glass ceiling" results more from age and qualifications than from explicit discrimination. (SLD)

  7. Glass ceilings of professionalisation.

    Science.gov (United States)

    Stott, Dawn L

    2016-04-01

    The term glass ceiling is a political term often used to describe an unbreakable barrier that isnot visible with the human eye, but it keeps minorities from rising up i.e. it is a barrier to minoritygroups, in the past (and sometimes still) for women, that stops them from achieving theirtrue potential.

  8. Stars on the Ceiling

    Science.gov (United States)

    Krupp, E. C.

    2016-01-01

    Astronomy and celestial imagery have been incorporated into architectural ceilings from antiquity to the present to reference the sky on behalf of a variety of agendas. Burial chambers in Egyptian pyramids and tombs, the Osiris chapel on the roof of Ptolemaic Egypt's Temple of Dendera, ancient Chinese tombs, painted rock shelters in California and the American Southwest, the cupola above a hot bath from medieval Jordan, elaborately illustrated ceilings in Italian cathedrals and palaces, the main concourse in New York's Grand Central Terminal, and a variety of other public buildings in America all brought the sky inside to convey relationships between the architecture, people, and the cosmos. In these interior environments, the symbolic function of the astronomical ceiling is driven by the thematic function of the building. At Griffith Observatory in Los Angeles three signature spaces are equipped with astronomically illustrated ceilings. In content and location, these prominent murals operate symbolically to convey meaning through public display and unexpectedly prompt people to think more expansively about the universe. This artwork is familiar in Los Angeles, but its use in a public observatory puts it outside the range of most commentaries on public art. Although experienced by more than seventy-six million persons over the last eighty years, Griffith Observatory's celestial murals are not well known. Their history, content, character, meaning, and purpose are detailed here.

  9. ENERGY STAR Certified Ceiling Fans

    Science.gov (United States)

    Certified models meet all ENERGY STAR requirements as listed in the Version 3.0 ENERGY STAR Program Requirements for Ceiling Fans that are effective as of April 1, 2012. A detailed listing of key efficiency criteria are available at http://www.energystar.gov/index.cfm?c=ceiling_fans.pr_crit_ceiling_fans

  10. Breaking the glass ceiling.

    Science.gov (United States)

    Lazarus, A

    1997-03-01

    The glass ceiling is a form of organizational bias and discrimination that prevents qualified professionals from achieving positions of top governance and leadership. This article examines glass ceiling barriers that keep physicians from the upper reaches of management. While these factors apply mainly to women and minority physicians in academia, and are attributable to sexual harassment and discrimination, physicians as a class are frequently denied executive management positions. Such denial results from inadequate preparation for a career in health care administration. Important issues in the professional development of physician executives include mentoring, training and education, administrative experience, and cultural and personality factors. All of those must be considered when making the transition from medicine to management.

  11. Ceilometer (CEIL) Instrument Handbook

    Energy Technology Data Exchange (ETDEWEB)

    Morris, Victor R. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2016-04-01

    The Vaisala Laser Ceilometer (CEIL) is a self-contained, ground-based, active, remote-sensing device designed to measure cloud-base height, vertical visibility, and potential backscatter signals by aerosols. It detects up to three cloud layers simultaneously. Model CL31 has a maximum vertical range of 7700 meters (m). The laser ceilometer transmits near-infrared pulses of light, and the receiver detects the light scattered back by clouds and precipitation.

  12. ENERGY STAR Certified Ceiling Fans

    Data.gov (United States)

    U.S. Environmental Protection Agency — Certified models meet all ENERGY STAR requirements as listed in the Version 3.1 ENERGY STAR Program Requirements for Ceiling Fans that are effective as of April 1,...

  13. Jagged Edges of the Glass Ceiling

    Science.gov (United States)

    Robinson, Victoria L.

    2004-01-01

    Although many aspiring young women might believe the glass ceiling was shattered a decade ago, they still need to understand how that glass ceiling impacted an older generation of women in educational leadership. They also must be aware that some segments of the glass ceiling might still exist. This article provides a historical overview of the…

  14. The Glass Ceiling Initiative. A Report.

    Science.gov (United States)

    Department of Labor, Washington, DC.

    While minorities and women have made considerable gains in entering the workforce in the last few decades, there remains a dearth of minorities and women at management levels. This phenomenon has come to be known as the "glass ceiling." The Department of Labor defines the glass ceiling as those artificial barriers based on attitudinal or…

  15. The Glass Ceiling: Progress and Persistent Challenges

    Science.gov (United States)

    McLlwain, Wendy M.

    2012-01-01

    It has been written that since 2001, there has not been any significant progress and the glass ceiling is still intact. Women are still underrepresented in top positions (Anonymous, 2004). If this is true, the glass ceiling presents a major barrier between women and their desire to advance into executive or senior management positions. In addition…

  16. Large eddy simulation of ceiling jet behaviour

    International Nuclear Information System (INIS)

    Sharma, Pavan K.; Singh, R.K.

    2014-01-01

    Development of a ceiling jet is a primary feature of a compartment fire hydrogen transport in nuclear reactor containment. This phenomenon is caused by the buoyant fire/hydrogen plume hitting the ceiling of the compartment and spreading along it. In context of fire safety ceiling jets is of primary interest for the two main reasons. First, the rate of ceiling jet spread controls the smoke filling rate in a compartment, and eventually determines level of fire hazard to occupants. Second, activation of sprinklers and smoke detectors rely on temperature or smoke concentration rise in ceiling jets. Therefore, knowledge of fluid mechanics characteristics of ceiling jets is essential for design of fire control systems. In the present study, jet front propagation along the ceiling is predicted using the Large Eddy Simulation (LES) method. The predicted propagation rate is in good agreement with the available experimental data. Results of LES simulation are also compared with the conventional Reynolds-Averaged Navier- Stokes (RANS) predictions and correlations based on dimensional analysis. (author)

  17. Women's Career Development at the Glass Ceiling.

    Science.gov (United States)

    Inman, Pamela L.

    1998-01-01

    For women, success in shattering the glass ceiling lies not in adapting to a male workplace culture but in using career strategies such as self-knowledge, multiple mentors, integration of body and soul, and fluid, customized careers. (SK)

  18. Diversity, culture and the glass ceiling.

    Science.gov (United States)

    Wilson, Eleanor

    2014-01-01

    A reference to the term, the glass ceiling, has come to embody more than gender equality among women and men. Today the term embraces the quest of all minorities and their journey towards equality in the workplace. The purpose of this article is to bring attention to the subject of diversity, culture, and the glass ceiling. The article will discuss the history of the glass ceiling and how its broadened meaning is relevant in today's workplace. It will also provide statistics showing how diversity and culture are lacking among the top echelon of today's executives, the barriers faced by minorities as they journey towards executive leadership, and how to overcome these barriers to truly shatter the glass ceiling.

  19. 16 CFR 305.13 - Labeling for ceiling fans.

    Science.gov (United States)

    2010-01-01

    ... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Labeling for ceiling fans. 305.13 Section... Disclosures § 305.13 Labeling for ceiling fans. (a) Ceiling fans—(1) Content. Any covered product that is a ceiling fan shall be labeled clearly and conspicuously on the principal display panel with the following...

  20. 48 CFR 452.216-74 - Ceiling Price.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Ceiling Price. 452.216-74... SOLICITATION PROVISIONS AND CONTRACT CLAUSES Texts of Provisions and Clauses 452.216-74 Ceiling Price. As prescribed in 416.670, insert the following clause: Ceiling Price (FEB 1988) The ceiling price of this...

  1. Glass Ceiling for Women in Higher Education.

    Science.gov (United States)

    Schedler, Petra; Glastra, Folke; Hake, Barry

    2003-01-01

    Discusses the place of women in higher education in the Netherlands. Suggests that it is not a question of numbers but of orientation, field, and the glass ceiling. Asserts that despite some improvement, higher education may be one of the last bastions against the recognition of women's worth. (Contains 42 references.) (JOW)

  2. Ouch! Or ESL and the Glass Ceiling.

    Science.gov (United States)

    Migliacci, Naomi

    The realities of the glass ceiling, which prevents qualified women, minorities, and many English-as-a-Second-Language (ESL) students from advancement and promotion, are rarely discussed in English for Special Purposes (ESP)/ESL programs and courses. This paper explores the barriers to success, focusing on the sociolinguistic factors of verbal and…

  3. The Real Glass Ceiling. Your Career.

    Science.gov (United States)

    Savage, Adrian

    2002-01-01

    There is a powerful and common glass ceiling (barrier that prevents capable employees from being promoted) that affects men as much as women. Between middle management and the executive level, corporate culture shifts to one based on power and a worker must play by new rules even if these have never been explained. (JOW)

  4. Minimising infection--from floor to ceiling.

    Science.gov (United States)

    Peake, Sarah

    2014-10-01

    Dr Sarah Peake, product sustainability manager at specialty chemicals company, Sika--which provides solutions for concrete, waterproofing, roofing, flooring, refurbishment, sealing and bonding, and industry--looks at the fundamentals for keeping floors, walls, and ceilings in hospitals and other healthcare facilities 'in excellent health'.

  5. 48 CFR 1352.216-77 - Ceiling price.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Ceiling price. 1352.216-77... SOLICITATION PROVISIONS AND CONTRACT CLAUSES Text of Provisions and Clauses 1352.216-77 Ceiling price. As prescribed in 48 CFR 1316.601-70 and 1316.602-70, insert the following clause: Ceiling Price (APR 2010) The...

  6. Experimental study of diffuse ceiling ventilation in classroom

    DEFF Research Database (Denmark)

    Hviid, Christian Anker; Terkildsen, Søren

    Diffuse ceiling ventilation is a novel air distribution device that combines the suspended acoustic ceiling with ventilation supply. A diffuse ceiling distributes the supply air above the acoustic tiles and has proven performance in laboratory experiments. To study the performance in real...

  7. 78 FR 25626 - Energy Conservation Program for Consumer Products: Energy Conservation Standards for Ceiling Fans...

    Science.gov (United States)

    2013-05-02

    ... Conservation Program for Consumer Products: Energy Conservation Standards for Ceiling Fans and Ceiling Fan... for residential ceiling fans and ceiling fan light kits in the Federal Register. This document... other aspect of the rulemaking for ceiling fans and ceiling fan light kits. The comment period is...

  8. Numerical analysis of diffuse ceiling ventilation and its integration with a radiant ceiling system

    DEFF Research Database (Denmark)

    Zhang, Chen; Heiselberg, Per Kvols; Chen, Qingyan

    2017-01-01

    A novel system combining diffuse ceiling ventilation and radiant ceiling was proposed recently, with the aim of providing energy efficient and comfort environment to office buildings. Designing of such a system is challenging because of complex interactions between the two subsystems and a large...... number of design parameters encountered in practice. This study aimed to develop a numerical model that can reliably predict the airflow and thermal performance of the integrated system during the design stage. The model was validated by experiments under different operating conditions. The validated...

  9. Seville City Hall Chapter Room ceiling decoration

    Directory of Open Access Journals (Sweden)

    Robador, M. D.

    2010-02-01

    Full Text Available The present article describes a chemical and physical study of the colour, chemical composition and mineral phases of the decorative materials in the Seville City Hall Chapter House ceiling. The findings showed that the inner most layer of material, calcite, was covered with white lead, in turn concealed under a layer of gilded bole. The ceiling underwent re-gilding, also over bole, due in all likelihood to wear on the original gold leaf. In the nineteenth century, the entire ceiling with the exception of the inscriptions was whitewashed with calcite and white lead. Silver was employed on King John I’s sword (coffer 27. Gold leaf was used to adorn the royal attributes: crowns, belts, sceptres, swords and rosary beads. The high reliefs were likewise gilded. The pigments identified on the ceiling adornments included azurite, malachite, vermilion and gas black. A lime and ground dolomite mortar was used throughout.

    El objetivo de este trabajo es el estudio de diferentes aspectos, como el color, la composición química y las fases mineralógicas presentes en los diferentes materiales que forman la ornamentación del techo de la Sala Capitular del Ayuntamiento de Sevilla, mediante métodos físicos y químicos. Nuestros resultados muestran que el dorado fue realizado sobre una capa de bol previamente depositada sobre una lámina de blanco de plomo que cubría un estrato de calcita. Posteriormente, y probablemente debido a alteraciones en el dorado original, el techo fue de nuevo dorado usando una técnica similar. En el siglo XIX, casi todo el techo, excepto las zonas con inscripciones, fue blanqueado usando una mezcla de calcita y blanco de plomo. Se empleó plata para cubrir la espada del rey Juan I (casetón 27. Finísimas láminas de oro se usaron para decorar los atributos reales: coronas, cinturones, cetros, espadas y rosarios. En diferentes partes de la decoración fueron detectados pigmentos como azurita, malaquita, bermellón y

  10. 78 FR 16443 - Energy Efficiency Program for Consumer Products: Energy Conservation Standards for Ceiling Fans...

    Science.gov (United States)

    2013-03-15

    ... Standards for Ceiling Fans and Ceiling Fan Light Kits AGENCY: Office of Energy Efficiency and Renewable... consider amending the energy conservation standards for ceiling fans and ceiling fan light kits. DOE also....gov . Follow the instructions for submitting comments. Email: CeilingFan[email protected

  11. Perceptions of the Glass Ceiling Effect in Community Colleges

    Science.gov (United States)

    Myers, Cheryl E.

    2010-01-01

    The purpose of this study was to determine the existence of a glass ceiling effect within community colleges by examining faculty, staff and administrator's perceptions of a glass ceiling as it relates to the advancement of women at their institutions. This was done by using a cross-sectional survey administered electronically to faculty, staff…

  12. METHOD FOR EVALUATING MOLD GROWTH ON CEILING TILE

    Science.gov (United States)

    A method to extract mold spores from porous ceiling tiles was developed using a masticator blender. Ceiling tiles were inoculated and analyzed using four species of mold. Statistical analysis comparing results obtained by masticator extraction and the swab method was performed. T...

  13. 48 CFR 243.204-70-2 - Price ceiling.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Price ceiling. 243.204-70..., DEPARTMENT OF DEFENSE CONTRACT MANAGEMENT CONTRACT MODIFICATIONS Change Orders 243.204-70-2 Price ceiling. Unpriced change orders shall include a not-to-exceed price. [75 FR 48277, Aug. 10, 2010] ...

  14. 48 CFR 217.7404-2 - Price ceiling.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Price ceiling. 217.7404-2 Section 217.7404-2 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM... Contract Actions 217.7404-2 Price ceiling. UCAs shall include a not-to-exceed price. ...

  15. Diffuse Ceiling Inlet Systems and the Room Air Distribution

    DEFF Research Database (Denmark)

    Nielsen, Peter V.; Jensen, Rasmus Lund; Rong, Li

    2010-01-01

    A diffuse ceiling inlet system is an air distribution system which is supplying the air through the whole ceiling. The system can remove a large heat load without creating draught in the room. The paper describes measurements in the case of both cooling and heating, and CFD predictions are given ...

  16. Diffuse Ceiling Inlet Systems and the Room Air Distribution

    DEFF Research Database (Denmark)

    Nielsen, Peter V.; Jensen, Rasmus Lund; Rong, Li

    2010-01-01

    A diffuse ceiling inlet system is an air distribution system which is supplying the air through the whole ceiling. The system can remove a large heat load without creating draught in the room. The paper describes measurements in the case of both cooling and heating, and CFD predictions are given...

  17. Costs and benefits of energy efficiency improvements in ceiling fans

    Energy Technology Data Exchange (ETDEWEB)

    Shah, Nihar; Sathaye, Nakul; Phadke, Amol; Letschert, Virginie [Lawrence Berkeley National Lab., CA (United States). Environmental Energy Technology Division

    2013-10-15

    Ceiling fans contribute significantly to residential electricity consumption, especially in developing countries with warm climates. The paper provides analysis of costs and benefits of several options to improve the efficiency of ceiling fans to assess the global potential for electricity savings and green house gas (GHG) emission reductions. Ceiling fan efficiency can be cost-effectively improved by at least 50% using commercially available technology. If these efficiency improvements are implemented in all ceiling fans sold by 2020, 70 terawatt hours per year could be saved and 25 million metric tons of carbon dioxide equivalent (CO2-e) emissions per year could be avoided, globally. We assess how policies and programs such as standards, labels, and financial incentives can be used to accelerate the adoption of efficient ceiling fans in order to realize potential savings.

  18. Women and Politics – The Glass Ceiling

    Directory of Open Access Journals (Sweden)

    Irina Zamfirache

    2010-03-01

    Full Text Available The role of women in modern politics is a subject that needs further insight, considering the growthin number of women that nowadays have relevant political positions on the international stage.There are studies today that emphasize the equality issue and all that is gender role related, but ourinterest is to analyze the women representation in power related positions. Due to the fastmodernization of the political environment and the rapid spreading of the feminist way of thought,several authors took interest in the gender differences in politics. The article follows some keydimensions in understanding the gender-role in politics: the glass ceiling, the role of the media indrawing the image of the woman politician, the gender affinity effect. In the end we would like topoint out the differences for men and women in exploiting the opportunities and securing the positions of power.

  19. AGATHOS IN MICHELANGELO’S SISTINE CEILING

    Directory of Open Access Journals (Sweden)

    PATRICIA TRUTTY-COOHILL

    2010-11-01

    Full Text Available Michelangelo’s design of the Sistine Chapel ceiling is examined from the sense of this new journal Agathos. The paper demonstrates to the modern world the point of view, the confidence, of the Christian humanism of the Renaissance. With agathos, that combination of noble and beautiful goodness, we ascend to the overarching realms Michelangelo depicts. We look at the architectural structure, the disegno, as a Jacob’s ladder that returns us to our rightful place, the home that we forgot when we descended to the world into which we were born. Michelangelo makes our origins apparent, shows us that we are scion of the great ancestors of Christ. Through the beauty of the design we are lead to the goodness that is our true place in the universe. Michelangelo then allows our spirit to return home and in that returning to properly view our place in the divine order.

  20. Cost analysis of ceiling tile replacement for noise abatement.

    Science.gov (United States)

    Berens, R J; Weigle, C G

    1996-01-01

    Our purpose was to evaluate the cost and benefit of noise reduction after replacement of acoustic ceiling tile in an open ward neonatal intensive care unit (NICU). An observational, prospective study evaluated noise in an open ward NICU before and after suspended ceiling tiles were replaced. Noise was rated by a 10-point visual analog scale and measured with a decibel meter. The mean decibel level was 55 before and 53 after renovation (p noise evaluation, a more efficient ceiling tile might have been selected or the project may have been aborted or modified because of the low levels of noise already present.

  1. Effects of a thermal ceiling on postoperative hypothermia

    DEFF Research Database (Denmark)

    Henneberg, S; Eklund, A; Joachimsson, P O

    1985-01-01

    postoperatively with or without external heating from a heating ceiling. Central and peripheral temperatures, oxygen consumption, plasma catecholamines and shivering were measured. A method for continuous measurement of oxygen consumption and carbon dioxide production during spontaneous breathing is described...

  2. Multiprocessor Priority Ceiling Emulation for Safety-Critical Java

    DEFF Research Database (Denmark)

    Strøm, Torur Biskopstø; Schoeberl, Martin

    2015-01-01

    Priority ceiling emulation has preferable properties on uniprocessor systems, such as avoiding priority inversion and being deadlock free. This has made it a popular locking protocol. According to the safety-critical Java specication, priority ceiling emulation is a requirement for implementations....... However, implementing the protocol for multiprocessor systemsis more complex so implementations might perform worse than non-preemptive implementations. In this paper we compare two multiprocessor lock implementations with hardware support for the Java optimized processor: non-preemptive locking...

  3. Analisa Persepsi Glass Ceiling Pada Grup Hotel Accor Di Surabaya

    OpenAIRE

    Hariono, Ardhi Ananta Kurnia; Theios, Jefson

    2017-01-01

    Tujuan dilakukannya penelitian ini adalah untuk mengetahui persepsi karyawan perempuan akan glass ceiling pada grup hotel Accor Surabaya melalui hambatan pribadi, hambatan situasional, dan hambatan sosial. Penelitian ini di fokuskan pada kelompok umur dan status pernikahan. Metode pengumpulan data menggunakan survei kepada 50 karyawan perempuan yang mejabat pada posisi manajerial di grup Hotel Accor Surabaya. Hasil penelitian menunjukkan persepsi glass ceiling pada interval kecil. Untuk kelom...

  4. Potential Global Benefits of Improved Ceiling Fan Energy Efficiency

    Energy Technology Data Exchange (ETDEWEB)

    Sathaye, Nakul [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Phadke, Amol [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Shah, Nihar [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Letschert, Virginie [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2012-10-31

    Ceiling fans contribute significantly to residential electricity consumption, both in an absolute sense and as a proportion of household consumption in many locations, especially in developing countries in warm climates. However, there has been little detailed assessment of the costs and benefits of efficiency improvement options for ceiling fans and the potential resulting electricity consumption and greenhouse gas (GHG) emissions reductions. We analyze the costs and benefits of several options to improve the efficiency of ceiling fans and assess the global potential for electricity savings and GHG emission reductions with more detailed assessments for India, China, and the U.S. We find that ceiling fan efficiency can be cost-effectively improved by at least 50% using commercially available technology. If these efficiency improvements are implemented in all ceiling fans sold by 2020, 70 terrawatt hours per year (TWh/year) could be saved and 25 million metric tons of carbon dioxide (CO2) emissions per year could be avoided, globally. We assess how policies and programs such as standards, labels, and financial incentives can be used to accelerate the adoption of efficient ceiling fans in order to realize this savings potential.

  5. The glass ceiling: A biological phenomenon.

    Science.gov (United States)

    Schulpen, Tom W J

    2017-09-01

    Many brilliant and ambitious young women lose their drive for top careers after childbirth. New maternal impulses are at odds with their original ambitions and for many mothers stress and frustration will be the result as they have to combine child care with workweeks of 60-80h to reach or remain at the top. Pregnancy hormones modify the female's brain as has been demonstrated already for decades in animals. This brain plasticity due to adult neurogenesis in the so called maternal circuitry of the limbic system is long-lasting and perhaps lifelong. In humans hormonal and neuro-imaging studies show ample evidence for fundamental and long lasting pregnancy induced brain changes, not only in the limbic system, but also in the cortical networks like theory of mind and mirror neuron system. Recent research shows pronounced and long lasting brain changes in several of these areas. It can be concluded that there exists a maternal brain that drives mother's behaviour and priorities. Research in men shows that the more fathers are involved in raising their children, the more caring behaviour they develop. Structural anatomical changes are found in neural regions involved in parental motivation. These studies show that brain plasticity in fathers is experience dependent. In Nordic countries, a policy of paid paternal leave followed by a flexible shared parental leave, stimulates fatherly behaviour. This might reduce men's eagerness for top careers, thus creating better opportunities for women. Demolition of women's glass ceiling starts with the father. Copyright © 2017 Elsevier Ltd. All rights reserved.

  6. Effect of Number of Blades on Performance of Ceiling Fans

    Directory of Open Access Journals (Sweden)

    Adeeb Ehsan

    2015-01-01

    Full Text Available In this paper, the effect of number of blades on ceiling fan performance is discussed. This approach helps to satisfy tradeoff between high air flow (performance and power consumption (energy efficiency. Specifically, variation from two to six blades is considered with nonlinear forward sweep profile. Reynolds Averaged Navier-Stokes (RANS technique is used to model the flow field induced by the ceiling fan inside a generic room. The performance is gauged through response parameters namely volumetric flow rate, mass flow rate, torque and energy efficiency. The results indicate that mass and volumetric flow rates are maximized for six blade configuration and energy efficiency is maximized for two blade configuration. The study indicates the importance of tradeoff between high air flow through ceiling fan and associated energy efficiency.

  7. A Modest Manifesto for Shattering the Glass Ceiling.

    Science.gov (United States)

    Meyerson, Debra E.; Fletcher, Joyce K.

    2000-01-01

    Approaches to the glass ceiling--encouraging women to adopt "masculine" attributes, accommodating women's unique needs, or celebrating women's differences--have shortcomings. A fourth approach links equity and effectiveness. "Small wins" recognizes that gender inequity is rooted in cultural patterns and uses small initiatives…

  8. Managers' Beliefs about the Glass Ceiling: Interpersonal and Organizational Factors

    Science.gov (United States)

    Elacqua, Tina C.; Beehr, Terry A.; Hansen, Curtiss P.; Webster, Jennica

    2009-01-01

    The glass ceiling refers to the difficulty of women trying to be promoted into the top management levels. The present study examined managers' potential explanations, implicit or explicit, for why women rarely reach the top hierarchical levels in their own organization. Among 685 managers at a large Midwestern insurance company, a model was…

  9. Experience above the Glass Ceiling: A Study Of Female Executives ...

    African Journals Online (AJOL)

    The study examined the experience of female executives who have risen above the glass ceiling in male dominated work environment. A total of 230 male and female executive participated in the study. They had spent a minimum of five years in their present position, which allowed information from a wide range of ...

  10. Breaking the Educational Glass Ceiling: An Interview with Harry Lenderman

    Science.gov (United States)

    Lenderman, Harry; Sandelands, Eric

    2005-01-01

    Purpose - To examine the role that corporations can and are playing in removing restrictions to a college or university education for their employees - the educational glass ceiling. Design/methodology/approach - An interview format is used with an experienced academic, and learning and development practitioner, drawing upon experiences and…

  11. EVALUATION OF FUNGAL GROWTH (PENICILLIUM GLABRUM) ON A CEILING TILE

    Science.gov (United States)

    The paper gives results of a study employing static chambers to study the impact of different equilibrium relative humidities (RHs) and moisture conditions on the ability of a new ceiling tile to support fungal growth. Amplification of the mold, Penicillium glabrum, occurred at R...

  12. Glass Ceiling in Academic Administration in Turkey: 1990s versus 2000s

    Science.gov (United States)

    Gunluk-Senesen, Gulay

    2009-01-01

    This paper assesses the glass ceiling for academics in the Turkish universities with reference to top administration positions: rectors and deans. Glass ceiling indicators show that the glass ceiling thickened from the 1990s to late 2000s. The findings are discussed against the background of the transformation in the Turkish universities in the…

  13. Measurements on Buoyant Jet Flows from a Ceiling-Mounted Slot Diffuser

    DEFF Research Database (Denmark)

    Nielsen, Peter V.; Möller, Åke T. A.

    Ceiling-mounted slot diffusers in ventilated rooms will often generate a flow of the wall jet type. The jet follows the ceiling, entrains air from the occupied zone and generates a recirculating flow in the whole room. This paper will deal with the flow in the ceiling region. The wall jet flow...

  14. An acoustical research of the undulating wooden ceiling in the Vyborg Library

    DEFF Research Database (Denmark)

    Mortensen, Bo

    2004-01-01

    Much has been written about the Undulating Ceiling at the lecture hall of the Vyborg Library. Alvar Aalto himself claimed the ceiling to be "ninety-nine per cent acoustically perfect" and the sketches showing the acoustical considerations behind the ceiling-design is often reproduced. But how did...

  15. GROWTH EVALUATION OF FUNGI (PENICILLIUM AND ASPERGILLUS SPP.) ON CEILING TILES

    Science.gov (United States)

    The paper gives results of an evaluation of the potential for fungal growth on four different ceiling tiles in static chambers. It was found that even new ceiling tiles supported fungal growth under favorable conditions. Used ceiling tiles appeared to be more susceptible to funga...

  16. 78 FR 62494 - Energy Conservation Program: Energy Conservation Standards for Ceiling Fans

    Science.gov (United States)

    2013-10-22

    ... Conservation Program: Energy Conservation Standards for Ceiling Fans AGENCY: Office of Energy Efficiency and... rulemaking to consider setting energy conservation standards for ceiling fans. Specifically, DOE seeks information on the interaction between ceiling fan and air conditioning usage. To inform interested parties...

  17. Field Study of Diffuse Ceiling Ventilation Performance in a Landscape Office

    DEFF Research Database (Denmark)

    Zukowska-Tejsen, Daria; Wolsing, Marie; Grysbæk, Malene

    2016-01-01

    Performance of diffuse ceiling ventilation with regard to thermal comfort and limits of the cooling capacity of the system was studied in a 97 m2-landscape office. Seven operation scenarios were tested: two for mixing ventilation with ceiling mounted fan coils and five with diffuse ceiling ventil...

  18. Parametrical analysis on the diffuse ceiling ventilation by experimental and numerical studies

    DEFF Research Database (Denmark)

    Zhang, Chen; Kristensen, Martin Heine; Jensen, Jakob Sølund

    2016-01-01

    This paper aims to investigate the performance of diffuse ceiling ventilation in a classroom. An experimental study is carried out in a test chamber to examine the impact of diffuse ceiling opening area on the system cooling capacity and thermal comfort. The results indicate that diffuse ceiling...... ventilation provides a satisfied thermal comfort level in the occupied zone even under a high ventilation rate and a high heat load condition. A design chart method is adopted to compare different diffuse ceiling configurations, and the results indicate that the system with a 18% diffuse ceiling opening area...

  19. Air Distribution in a Room with Ceiling-Mounted Diffusers

    DEFF Research Database (Denmark)

    Nielsen, Peter V.; Heby, Thomas; Moeller-Jensen, Bertil

    2006-01-01

    distribution generated by a radial diffuser is partly controlled by the momentum flow from the diffusers and partly from gravity forces where the thermal load and the temperature difference between room air and supply air deflect the radial wall jet down into the occupied zone. The ceiling diffuser...... with swirling flow generates a flow pattern in the room which is rather uninfluenced by the thermal load. The flow is highly mixed above the occupied zone and the air movement penetrates the occupied zone close to the walls. All systems are tested in the same room with the same heat load consisting of two....... The characteristics of the air distribution systems are addressed by analysing the acceptable conditions for the supply flow rate and the temperature difference for the different systems. The paper shows that an air distribution system with ceiling-mounted air terminal units is able to generate comfortable velocity...

  20. Human Response to Personalized Ventilation Combined with Chilled Ceiling

    DEFF Research Database (Denmark)

    Lipczynska, Aleksandra; Kaczmarczyk, Jan; Marcol, Bartosz

    2014-01-01

    , which was responsible for keeping the design air temperature conditions in the occupied zone. Removing room sensible heat load with radiant cooling systems enables reduction of required supply airflow rates which can make it possible to use the PV as a single ventilation system in the room. Furthermore...... the recommended in the standards upper temperature limit of 26°C. In this paper response of 24 human subjects to a PV combined with chilled ceiling system (CCPV) is compared with the response to mixing ventilation combined with chilled ceiling (CCMV). Participants were provided with control of direction and flow....... At the workstation PV provided overall thermal sensation close to neutral, whereas thermal sensation above neutral was reported during the exposure with CCMV. In the room away from the workstations the thermal sensation and its’ acceptability was similar with both systems. Immediately after the increased activity...

  1. Optimal Sustainable Policies under Pollution Ceiling: The Demographic Side

    OpenAIRE

    Raouf Boucekkine; Blanca Martinez; Ramon Ruiz-Tamarit

    2013-01-01

    We study optimal sustainable policies in a benchmark logistic world (where both population and technological progress follow logistic laws of motion) subject to a pollution ceiling. The main policy in the hands of the benevolent planner is pollution abatement, ultimately leading to the control of a dirtiness index as in the early literature of the limits to growth literature. Besides inclusion of demographic dynamics, we also hypothesize that population size affects negatively the natural reg...

  2. Very short range forecasts of visibility and ceiling

    Science.gov (United States)

    Hilsenrod, A.

    1980-01-01

    The development of methods for the short range forecasting of visibility and ceiling conditions is discussed. Short range forecasts of one hour or less (5 or 30 minutes), immediately after a series of local observations can be expected to be more accurate and reliable than any forecast of more than one hour. These forecasts can be accomplished by the operational implementation of fully automated aviation observation systems and the utilization of statistical techniques such as the Generalized Equivalent Markov model.

  3. Effects of a thermal ceiling on postoperative hypothermia

    DEFF Research Database (Denmark)

    Henneberg, S; Eklund, A; Joachimsson, P O

    1985-01-01

    postoperatively with or without external heating from a heating ceiling. Central and peripheral temperatures, oxygen consumption, plasma catecholamines and shivering were measured. A method for continuous measurement of oxygen consumption and carbon dioxide production during spontaneous breathing is described....... The results suggest that postoperative external heating decreases oxygen consumption, shivering and plasma catecholamine levels. At the same time, the comfort of the patient is increased considerably....

  4. The Perception of 'Glass Ceiling' and its Impact on Career Progression of Female Managers in Malaysia

    OpenAIRE

    Khan, Maria

    2013-01-01

    The glass ceiling is a transparent barrier that prevents women and minorities from moving up in the management hierarchy. Glass ceiling researchers have attempted to determine whether a glass ceiling exists by examining the actual promotion decision to top management, the percentage of management positions held by women in an organization, salary of male versus female managers, and ratings of potential promotion candidates to top management. The aim of this research is to investigate the vari...

  5. Performance analysis of a new design of office diffuse ceiling ventilation system

    DEFF Research Database (Denmark)

    Fan, Jianhua; Hviid, Christian Anker; Yang, Honglu

    2013-01-01

    surface temperatures, pressure loss of the ceiling and ventilation effectiveness are measured for an air change rate of 3.5 h-1 and 5.1 h -1 respectively. A computational fluid dynamics model of the office with the diffuse ceiling ventilation system is built and validated by the full scale measurement....... The measurements of pressure loss across the ceiling show a low pressure drop between the plenum and the occupied zone. Ventilation effectiveness is measured to be close to 1 on average under the tested conditions. It is shown that the diffuse ceiling ventilation system is able to remove indoor pollutant...

  6. Ceiling (attic) dust: a "museum" of contamination and potential hazard.

    Science.gov (United States)

    Davis, Jeffrey J; Gulson, Brian L

    2005-10-01

    Ceiling or attic dusts provide an indirect measure of air pollution integrated over varying time periods. We undertook an investigation into the particle-size distributions and sources and exposure pathways of metals in ceiling dusts from 38 houses in the city of Sydney, Australia. The houses ranged in age from 4 to 106 years and were grouped into three settings: industrial, semi-industrial, and non-industrial. The main roof types were terracotta tile (n=23), cement tile (n=8), and corrugated iron (n=4), with two slate and one asbestos. Soils and rocks from the Sydney area were also analyzed to provide "background" values and allow the estimation of enrichment factors. The bulk of the dusts contained particles derived from soil of crustal origin and organic plant material, with an anthropogenic component estimated at up to 25%. Particle sizes from selected dust samples showed a bimodal distribution, and the volumes of fine dusts were 50% dust from the industrial site houses compared with background soils and rocks from the Sydney area were As, x 5; Cr, x2; Co, x3; Cu, x 12; Pb, x10; Sb, x 26; and Zn, 596. For the three roof types of terracotta tile, cement, and iron, median regression analyses showed that there were no significant effects with respect to age. Median regression analyses for terracotta tile, cement tile, and corrugated iron roofs showed a "roof" effect for Cu and V. Significant correlations (P0.03) were observed between most of the metals As-Cd-Cu-Pb-Sb-Zn, especially from the industrial settings. Pathways of dust exposure in this study are classified as being passive or active based upon the probable route of dust infiltration. Ceiling dusts pose a probable health hazard if the dust is disturbed and allowed to plume within the living areas of a dwelling, thereby exposing the occupants, especially children, to elevated levels of metals and fine particulates. Modeling shows that exposure to the elevated levels of Pb in dust could give rise to blood

  7. Do Asian American Faculty Face a Glass Ceiling in Higher Education?

    Science.gov (United States)

    Lee, Sharon M.

    2002-01-01

    Evaluated the glass ceiling hypothesis in relation to Asian American faculty using data from the 1993 National Study of Post-Secondary Faculty for 1,019 Asian American faculty members. Data limitations prevent concluding that such faculty do or do not face a glass ceiling; however, baseline findings for future research are established. (SLD)

  8. The effect of diffuse ceiling panel on the energy performance of thermally activated building construction

    DEFF Research Database (Denmark)

    Zhang, Chen; Heiselberg, Per Kvols; Pomianowski, Michal Zbigniew

    2016-01-01

    An integrated system combining diffuse ceiling ventilation with thermally activated building construction (TABS) was proposed recently. In this system, TABS is encapsulated by diffuse ceiling panel and cannot have directly heat exchange with the room. The aim of this study is to investigate...

  9. Ceiling art in a radiation therapy department: its effect on patient treatment experience

    Energy Technology Data Exchange (ETDEWEB)

    Bonett, Jotham [Sunshine Hospital Radiation Therapy Centre, Melbourne, Vic. (Australia)

    2015-09-15

    A new initiative has been implemented at the Sunshine Hospital Radiation Therapy Centre, to provide a calming and comforting environment for patients attending radiation therapy treatment. As part of this initiative, the department's computed tomography (CT) room and radiation therapy bunkers were designed to incorporate ceiling art that replicates a number of different visual scenes. The study was undertaken to determine if ceiling art in the radiation therapy treatment CT and treatment bunkers had an effect on a patient's experience during treatment at the department. Additionally, the study aimed to identify which of the visuals in the ceiling art were most preferred by patients. Patients were requested to complete a 12-question survey. The survey solicited a patient's opinion/perception on the unit's unique ceiling display with emphasis on aesthetic appeal, patient treatment experience and the patient's engagement due to the ceiling display. The responses were dichotomised to ‘positive’ or ‘negative’. Every sixth patient who completed the survey was invited to have a general face-to-face discussion to provide further information about their thoughts on the displays. The results demonstrate that the ceiling artwork solicited a positive reaction in 89.8% of patients surveyed. This score indicates that ceiling artwork contributed positively to patients’ experiences during radiation therapy treatment. The study suggests that ceiling artwork in the department has a positive effect on patient experience during their radiation therapy treatment at the department.

  10. Individually controlled localized chilled beam in conjunction with chilled ceiling: Part 2 – Human response

    DEFF Research Database (Denmark)

    Arghand, Taha; Pastuszka, Zuzanna; Bolashikov, Zhecho Dimitrov

    2016-01-01

    The response of 24 subjects to the local environment established by localized chilled beam combined with chilled ceiling (LCBCC) was studied and compared with response to the environment generated by mixing ventilation combined with chilled ceiling (CCMV) at two temperature conditions of 26°C and...

  11. THE IMPACT OF ORGANIZATIONAL STRUCTURE ON GLASS CEILING: AEGEAN REGION AGENCIES IN TURKEY

    OpenAIRE

    İNEL, Merve; GARAYEV, Vener; BAKAY, Aziz

    2014-01-01

    This study examined the relationship between organizationalstructure (mechanistic/organic) and glass ceiling, the concept known asnegative discrimination against women in workplace. The data collected fromrandomly selected 81 organizations in Aegean Region of Turkey was analyzedthrough hierarchical stepwise multiple regression. The results of the finalregression model suggest that glass ceiling is not dependent on organizationalstructure, while the control variable gender has a negative relat...

  12. The glass ceiling of corporate social responsibility : Consequences of a business case approach towards CSR

    NARCIS (Netherlands)

    Nijhof, A.H.J.; Jeurissen, R.J.M.

    2010-01-01

    Purpose – This paper aims to clarify that corporate social responsibility (CSR) has come a long way by the prevailing business case approach, but increasingly hits a glass ceiling. The glass ceiling metaphor refers to the inherent limitations created by a business case approach towards CSR.

  13. Ceiling art in a radiation therapy department: its effect on patient treatment experience

    International Nuclear Information System (INIS)

    Bonett, Jotham

    2015-01-01

    A new initiative has been implemented at the Sunshine Hospital Radiation Therapy Centre, to provide a calming and comforting environment for patients attending radiation therapy treatment. As part of this initiative, the department's computed tomography (CT) room and radiation therapy bunkers were designed to incorporate ceiling art that replicates a number of different visual scenes. The study was undertaken to determine if ceiling art in the radiation therapy treatment CT and treatment bunkers had an effect on a patient's experience during treatment at the department. Additionally, the study aimed to identify which of the visuals in the ceiling art were most preferred by patients. Patients were requested to complete a 12-question survey. The survey solicited a patient's opinion/perception on the unit's unique ceiling display with emphasis on aesthetic appeal, patient treatment experience and the patient's engagement due to the ceiling display. The responses were dichotomised to ‘positive’ or ‘negative’. Every sixth patient who completed the survey was invited to have a general face-to-face discussion to provide further information about their thoughts on the displays. The results demonstrate that the ceiling artwork solicited a positive reaction in 89.8% of patients surveyed. This score indicates that ceiling artwork contributed positively to patients’ experiences during radiation therapy treatment. The study suggests that ceiling artwork in the department has a positive effect on patient experience during their radiation therapy treatment at the department

  14. Individually controlled localized chilled beam in conjunction with chilled ceiling: Part 1 – Physical environment

    DEFF Research Database (Denmark)

    Arghand, Taha; Bolashikov, Zhecho Dimitrov; Kosonen, Risto

    2016-01-01

    This study investigates the indoor environment generated by localized chilled beam coupled with chilled ceiling (LCBCC) and compares it with the environment generated by mixing ventilation coupled with chilled ceiling (CCMV). The experiments were performed in a mock-up of single office (4.1 m × 4...

  15. 26 CFR 1.42-14 - Allocation rules for post-2000 State housing credit ceiling amount.

    Science.gov (United States)

    2010-04-01

    ... State's housing credit ceiling by an Agency of the State or of a constitutional home rule city in the... 26 Internal Revenue 1 2010-04-01 2010-04-01 true Allocation rules for post-2000 State housing... State housing credit ceiling amount. (a) State housing credit ceiling—(1) In general. The State housing...

  16. Temperature reduction in attic and ceiling via insulation of several passive roof designs

    Energy Technology Data Exchange (ETDEWEB)

    Ong, K.S., E-mail: Ong.Kok.Seng@eng.monash.edu.m [Monash University Sunway Campus, Jalan Lagoon Selatan, 46150 Bandar Sunway (Malaysia)

    2011-06-15

    Research highlights: {yields} Six passive roof designs were tested simultaneously outdoors. {yields} Roof, attic and ceiling temperatures were determined. {yields} Solar collector roof design provided the coolest attic and ceiling. {yields} Placing insulation under roof is preferred to above ceiling. -- Abstract: High ambient temperatures coupled with high humidity lead to uncomfortable conditions that are non-conducive for human comfort and productivity. Heat transmission through the roof could be reduced by providing insulation in the attic under the roof or above the ceiling. A roof solar collector could provide both ventilation and cooling in the attic. Several laboratory sized units of passive roof designs were constructed and tested side-by-side under outdoor conditions to obtain temperature data of the roof, attic and ceiling in order to compare their performances.

  17. Temperature reduction in attic and ceiling via insulation of several passive roof designs

    International Nuclear Information System (INIS)

    Ong, K.S.

    2011-01-01

    Research highlights: → Six passive roof designs were tested simultaneously outdoors. → Roof, attic and ceiling temperatures were determined. → Solar collector roof design provided the coolest attic and ceiling. → Placing insulation under roof is preferred to above ceiling. -- Abstract: High ambient temperatures coupled with high humidity lead to uncomfortable conditions that are non-conducive for human comfort and productivity. Heat transmission through the roof could be reduced by providing insulation in the attic under the roof or above the ceiling. A roof solar collector could provide both ventilation and cooling in the attic. Several laboratory sized units of passive roof designs were constructed and tested side-by-side under outdoor conditions to obtain temperature data of the roof, attic and ceiling in order to compare their performances.

  18. Thresholds and Glass Ceilings: Career Pattern of Women Scientists

    Science.gov (United States)

    Sonnert, Gerhard

    2004-05-01

    The Project Access study examined the careers of men and women who had received prestigious postdoctoral fellowships and thus were presumably of about equal promise at the start of their professional careers. Had the women scientists in this elite group overcome a threshold beyond which they proceeded on equal footing with their male counterparts; or did a glass ceiling impede their careers? We found gender differences in career outcomes in the group we studied (699 questionnaires, 200 interviews), but these differences varied considerably by scientific discipline. Moreover, the career disparities for women, as a group, appear now to result chiefly from a series of subtle but identifiable and sometimes counterintuitive impediments as well as from slight gender differences in socialization. Each disadvantage by itself may be small, but in their accumulation they significantly influence women's careers.

  19. Women's participation in parliament: 'Glass ceiling' syndrome and party selection

    Directory of Open Access Journals (Sweden)

    Čičkarić Lilijana

    2014-01-01

    Full Text Available The impact of 'glass ceiling' syndrome and party selection on participation of women in parliament and other political institutions are examined in this article. 'Glass ceiling' syndrome, which means invisible, but almost impenetrable border that women face in professional life, keeping them away from positions of influence and progress in career, is the main reason for the small number of women involved in politics. According to the focus of the research, there are three groups of barriers to women's political participation. Most researchers examine the influence of the political system, institutional and legal mechanisms, the question of their transparency and functional improvement. Significantly less frequent approach came from authors who are concentrated on the social and economic barriers, financial conditions and the broader social context. The third group consists of those who are considering the ideological and psychological barriers, patriarchal cultural patterns, traditional gender roles, self-confidence, ambition and women's desire to be involved in politics. Political parties are key actors in the process of discrimination against women, because they do not allow them to be selected in a number of political functions. There are many factors that determine that the issue of gender equality is variously interpreted in political parties. The most present are contextual and ideological factors, referring to a different definition of the status of women on the political agenda, the social climate in terms of gender equality and respect for human rights, the level of social development and political freedom. Then come organizational factors pertaining to the structure of parties, the manner in which the leadership is elected, whether there are internal women's pressure groups and lobbying, and are women leaders are visible on high positions in decision-making process. Finally, there are institutional-legal factors, which include the type

  20. Studi Deskriptif Persepsi Karyawan Hotel Tentang Glass Ceiling Pada Wanita Dalam Pencapaian Jabatan Puncak Manajemen Hotel Di Kota Tanjung Selor

    OpenAIRE

    Merang, Merycona

    2015-01-01

    Penelitian ini dilakukan untuk mengetahui persepsi karyawan hotel tentang glass ceiling pada wanita dalam pencapaian jabatan puncak manajemen hotel di kota Tanjung Selor. Glass ceiling memiliki enam variable yaitu diri sendiri, tingkat pendidikan, lingkungan keluarga, kesehatan, lingkungan sosial, dan lingkungan kerja.Teknik analisa yang digunakan adalah kuantitatif deskriptif, crosstab dan chi square. Hasil penelitian menunjukkan bahwa secara keseluruhan, persepsi karyawan tentang glass ceil...

  1. 10 CFR Appendix U to Subpart B of... - Uniform Test Method for Measuring the Energy Consumption of Ceiling Fans

    Science.gov (United States)

    2010-01-01

    ... of Ceiling Fans U Appendix U to Subpart B of Part 430 Energy DEPARTMENT OF ENERGY ENERGY CONSERVATION... Subpart B of Part 430—Uniform Test Method for Measuring the Energy Consumption of Ceiling Fans 1. Scope. This appendix covers the test requirements used to measure the energy performance of ceiling fans. 2...

  2. Hardware Locks with Priority Ceiling Emulation for a Java Chip-Multiprocessor

    DEFF Research Database (Denmark)

    Strøm, Torur Biskopstø; Schoeberl, Martin

    2015-01-01

    According to the safety-critical Java specification, priority ceiling emulation is a requirement for implementations, as it has preferable properties, such as avoiding priority inversion and being deadlock free on uni-core systems. In this paper we explore our hardware supported implementation...... of priority ceiling emulation on the multicore Java optimized processor, and compare it to the existing hardware locks on the Java optimized processor. We find that the additional overhead for priority ceiling emulation on a multicore processor is several times higher than simpler, non-premptive locks, mainly...

  3. Diffuse Ceiling Ventilation and the Influence of Room Height and Heat Load Distribution

    DEFF Research Database (Denmark)

    Nielsen, Peter Vilhelm; Vilsbøll, Rasmus W; Liu, Li

    2015-01-01

    Diffuse ceiling (inlet) ventilation is an air distribution system that supplies air from the entire ceiling surface, giving a low supply velocity. The flow pattern in the room is controlled by the heat sources. The system generates high mixing flow and the air velocities in the room are expected...... with a large room height and it decreases in connection with certain heat load distributions. Room geometries and heat load distributions that are optimal for diffuse ceiling ventilation are discussed. A simplified design procedure is introduced....

  4. The glass ceiling in Irish healthcare: a nursing perspective.

    Science.gov (United States)

    Tracey, Catherine

    2006-01-01

    The purpose of this study is to describe and explore from the perspectives of top-level nurses holding the formal position of director of nursing their perceptions and interpretations of their experiences in the Irish healthcare system. This paper presents some findings from a nation-wide study, which is qualitative in approach using grounded theory methodology. Semi-structured interviews were conducted with 50 directors of nursing representing general and psychiatric nursing. The study in this paper was conducted in the context of a changing healthcare system, which emphasises the flattening of organisational pyramids. However, this study's findings indicate that, while structures might be changing, behaviours remain unaltered. In particular, the medicine nursing power base remains unchanged, while the power shift between nursing and general management continues to widen in favour of general management. Research in this paper shows that directors of nursing who chose to participate in this study may have different perceptions of experiences from those who chose not to participate. In the paper the reality is neither medicine nor general management, individually or collectively, are going to share or devolve power and influence to nursing. This study's findings indicate that nursing needs to confront this power imbalance. Nursing needs to take the first steps towards shattering the glass ceiling by really examining its own behaviours, in maintaining the status quo, in the traditional balance of power.

  5. Deposit Rate Ceilings as a Tool of Prudential Regulation

    Directory of Open Access Journals (Sweden)

    Janusz Krajewski

    2007-10-01

    Full Text Available The purpose of the paper is to present one of prudential regulation instruments in an environment that favors to engage in moral hazard behavior. The last decades proved that there is a link between financial liberalization and banking crises. In order to avoid crises and prevent banks engaging in gambling behavior, the system of prudential regulations has been implemented. The emphasis has been placed on the use of capital requirements, typically using the BIS standard developed in the Basel Accord.As the excessive reliance on capital requirements can become costly for the banks and lead to loose their franchise value and undermine incentives for prudent investing. The instrument that can create the franchise value, i.e. earning profits in the current period and in the future, is a policy of deposit rate controls. In the paper was also revealed why the policy of setting interest rate ceiling on deposits had not achieved its intended objectives, especially in the view of the fail of the Regulation Q policy.

  6. Sustainability assessment of a lightweight biomimetic ceiling structure

    International Nuclear Information System (INIS)

    Antony, Florian; Speck, Thomas; Speck, Olga; Grießhammer, Rainer

    2014-01-01

    An intensive and continuous debate centres on the question of whether biomimetics has a specific potential to contribute to sustainability. In the context of a case study, the objective of this paper is to contribute to this debate by presenting the first systematic approach to assess the sustainability of a complex biomimetic product. The object of inquiry is a lecture hall's ribbed slab. Based on criteria suggested by the Association of German Engineers (VDI), it has been verified that the slab has been correctly defined as biomimetic. Moreover, a systematic comparative product sustainability assessment has been carefully carried out. For purposes of comparison, estimated static calculations have been performed for conceivable current state-of-the-art lightweight ceiling structures. Alternative options are a hollow article slab and a pre-stressed flat slab. Besides a detailed benefit analysis and a discussion of social effects, their costs have also been compared. A particularly detailed life cycle assessment on the respective environmental impacts has also been performed. Results show that the biomimetic ribbed slab built in the 1960s is able to keep up with the current state-of-the-art lightweight solutions in terms of sustainability. These promising results encourage a systematic search for a broad range of sustainable biomimetic solutions. (paper)

  7. Analyzing the glass ceiling effect among radiologic technologists.

    Science.gov (United States)

    Belinsky, Susan B; Blagg, James D

    2011-01-01

    The literature has suggested that advancement within politics, academia and the health professions is influenced by gender. Purpose The authors conducted a survey to determine whether advancement was equal by gender in the radiologic science disciplines of nuclear medicine technology, radiation therapy and radiography. The survey was mailed to 900 subjects, 300 from each discipline. The discipline groups were further stratified by initial year of American Registry of Radiologic Technology certification; the authors selected 100 subjects from each discipline who initially were certified in 1978, 100 in 1988 and 100 in 1998. Approximately 33% of those selected responded. The findings of the study provided no evidence that men are promoted differentially than women. Women perceived that men were paid more for the same work. It appears that gender bias is pervasive outside of promotion decisions and, indeed, that some illegal actions (eg, sexual harassment, inappropriate gender-related interview questions) take place in radiologic science clinical settings. It is hoped that this study will set a baseline for future research on whether there is a glass ceiling effect in radiologic clinical practice and stimulate discussion of the importance of equal opportunity regardless of gender.

  8. Modeling of a hydronic ceiling system and its environment as energetic auditing tool

    Energy Technology Data Exchange (ETDEWEB)

    Fonseca Diaz, Nestor [Universidad Tecnologica de Pereira, Facultad de Ingenieria Mecanica (Colombia); University of Liege Belgium, Thermodynamics Laboratory Campus du Sart Tilman - Bat: B49 - P33, B-4000 Liege (Belgium)

    2011-03-15

    As a part of a commissioning study, the chilled ceiling system of a large commercial building located in Belgium is evaluated. A representative office has been instrumented and data on the chilled ceiling system operating in real conditions have been collected. The simulation of the whole system is performed by means of a transient thermal model of the building and its HVAC system. The model considers the hydronic panels as a transient-state finned heat exchanger connected to a simplified lumped transient model of the building. The behavior of the hydronic ceiling system and the interactions with its environment (walls, ventilated facade, internal loads and ventilation system) has been experimentally and numerically evaluated. Commissioning test results show that the influence of surfaces temperatures inside the room, especially the facade, is considerable. Then, it is clear that the hydronic ceiling system must be evaluated together with its designed environment and not as a separate HVAC equipment. (author)

  9. Impact of personalized ventilation combined with chilled ceiling on eye irritation symptoms

    DEFF Research Database (Denmark)

    Lipczynska, Aleksandra; Marcol, Bartosz; Kaczmarczyk, Jan

    2014-01-01

    Personalized ventilation (PV) improves inhaled air quality, because it provides fresh air to each workstation and directly to occupant’s breathing zone. The PV alone can be used for room ventilation when applied in conjunction with ceiling radiant cooling system, which removes sensible heat loads......, elevated air movement toward face and increased radiant cooling may have impact on the eye symptoms. Twenty four human subjects participated in experiments with PV combined with chilled ceiling system (CCPV) and with mixing ventilation (MV) combined with chilled ceiling (CCMV). In the experiments with PV...... from the space. Combining PV with chilled ceiling may be an effective way to provide thermal comfort in rooms at air temperature higher than the recommended in the standards upper limit of 26°C (category II), because the operative temperature will be lower. However, combination of high air temperature...

  10. PERFORMANCE EVALUATION OF CEILING RADIANT COOLING SYSTEM IN COMPOSITE CLIMATE

    Energy Technology Data Exchange (ETDEWEB)

    Sharma, Anuj [Malaviya National Institute of Technology (MNIT), Jaipur, India; Mathur, Jyotirmay [Malaviya National Institute of Technology (MNIT), Jaipur, India; Bhandari, Mahabir S [ORNL

    2015-01-01

    Radiant cooling systems are proving to be an energy efficient solution due to higher thermal capacity of cooling fluid especially for the buildings that require individual zone controls and where the latent loads are moderate. The Conventional air conditioners work at very low temperature i.e.5-8 c (refrigerant evaporator inlet) while the radiant cooling systems, also referred as high temperature cooling system, work at high temperatures i.e. 14-18 c. The radiant cooling systems can maintain lower MRT (Mean Radiant Temperature) as ceiling panels maintain uniform temperature gradient inside room and provide higher human comfort. The radiant cooling systems are relatively new systems and their operation and energy savings potential are not quantified for a large number of buildings and operational parameters. Moreover, there are only limited numbers of whole building simulation studies have been carried out for these systems to have a full confidence in the capability of modelling tools to simulate these systems and predict the impact of various operating parameters. Theoretically, savings achieve due to higher temperature set point of chilled water, which reduces chiller-running time. However, conventional air conditioner runs continuously to maintain requisite temperature. In this paper, experimental study for performance evaluation of radiant cooling system carried out on system installed at Malaviya National Institute of Technology Jaipur. This paper quantifies the energy savings opportunities and effective temperature by radiant cooling system at different chilled water flow rates and temperature range. The data collected/ analysed through experimental study will used for calibration and validation of system model of building prepared in building performance simulation software. This validated model used for exploring optimized combinations of key parameters for composite climate. These optimized combinations will used in formulation of radiant cooling system

  11. 2D and 3D GPR imaging of structural ceilings in historic and existing constructions

    Science.gov (United States)

    Colla, Camilla

    2014-05-01

    GPR applications in civil engineering are to date quite diversified. With respect to civil constructions and monumental buildings, detection of voids, cavities, layering in structural elements, variation of geometry, of moisture content, of materials, areas of decay, defects, cracks have been reported in timber, concrete and masonry elements. Nonetheless, many more fields of investigation remain unexplored. This contribution gives an account of a variety of examples of structural ceilings investigation by GPR radar in reflection mode, either as 2D or 3D data acquisition and visualisation. Ceilings have a pre-eminent role in buildings as they contribute to a good structural behaviour of the construction. Primarily, the following functions can be listed for ceilings: a) they carry vertical dead and live loads on floors and distribute such loads to the vertical walls; b) they oppose to external horizontal forces such as wind loads and earthquakes helping to transfer such forces from the loaded element to the other walls; c) they contribute to create the box skeleton and behaviour of a building, connecting the different load bearing walls and reducing the slenderness and flexural instability of such walls. Therefore, knowing how ceilings are made in specific buildings is of paramount importance for architects and structural engineers. According to the type of building and age of construction, ceilings may present very different solutions and materials. Moreover, in existing constructions, ceilings may have been substituted, modified or strengthened due to material decay or to change of use of the building. These alterations may often go unrecorded in technical documentation or technical drawings may be unavailable. In many cases, the position, orientation and number of the load carrying elements in ceilings may be hidden or not be in sight, due for example to the presence of false ceilings or to technical plants. GPR radar can constitute a very useful tool for

  12. Comparative Analysis Of Mid-Level Women Managers Perception Of The Existence Of Glass Ceiling In Singaporean And Malaysian Organizations

    OpenAIRE

    Vlado Dimovski; Miha Skerlavaj; Mandy Mok Kim Man

    2010-01-01

    This study presents an overview of glass-ceiling type barriers in organizations based on the perceptions of a sample of Singaporean and Malaysian mid-level women managers. Previous studies indicated the existence of a glass ceiling in organizations and presented strategic recommendations with regard to what corporations could do to remove or reduce the glass ceiling. This study investigates how women in middle management perceive their career advancement opportunities and what they consider t...

  13. Glass Ceiling in the Workplace: An Analysis within the Stated-owned Enterprises and Multi-national Enterprises in China

    OpenAIRE

    Cao, Mengxi

    2015-01-01

    Currently, although the increasingly number of women has gained leadership positions, the glass ceiling phenomenon still exists in China, especially in multi-national enterprise. In brief, the road to the upper rungs for female is still challenging and difficult. Due to the nature of the enterprises, the performance of glass ceiling is different. The aim of this dissertation is to discuss different performance and influence of glass ceiling in the context of the multi-national enterprises (MN...

  14. Study About Ceiling Design for Main Control Room of NPP with HFE

    Science.gov (United States)

    Gu, Pengfei; Ni, Ying; Chen, Weihua; Chen, Bo; Zhang, Jianbo; Liang, Huihui

    Recently since human factor engineering (HFE) has been used in control room design of nuclear power plant (NPP), the human-machine interface (HMI) has been gradual to develop harmoniously, especially the use of the digital technology. Comparing with the analog technology which was used to human-machine interface in the past, human-machine interaction has been more enhanced. HFE and the main control room (MCR) design engineering of NPP is a combination of multidisciplinary cross, mainly related to electrical and instrument control, reactor, machinery, systems engineering and management disciplines. However, MCR is not only equipped with HMI provided by the equipments, but also more important for the operator to provide a work environment, such as the main control room ceiling. The ceiling design of main control room related to HFE which influences the performance of staff should also be considered in the design of the environment and aesthetic factors, especially the introduction of professional design experience and evaluation method. Based on Ling Ao phase II and Hong Yanhe project implementation experience, the study analyzes lighting effect, space partition, vision load about the ceiling of main control room of NPP. Combining with the requirements of standards, the advantages and disadvantages of the main control room ceiling design has been discussed, and considering the requirements of lightweight, noise reduction, fire prevention, moisture protection, the ceiling design solution of the main control room also has been discussed.

  15. Statistical Short-Range Forecast Guidance for Cloud Ceilings Over the Shuttle Landing Facility

    Science.gov (United States)

    Lambert, Winifred C.

    2001-01-01

    This report describes the results of the AMU's Short-Range Statistical Forecasting task. The cloud ceiling forecast over the Shuttle Landing Facility (SLF) is a critical element in determining whether a Shuttle should land. Spaceflight Meteorology Group (SMG) forecasters find that ceilings at the SLF are challenging to forecast. The AMU was tasked to develop ceiling forecast equations to minimize the challenge. Studies in the literature that showed success in improving short-term forecasts of ceiling provided the basis for the AMU task. A 20-year record of cool-season hourly surface observations from stations in east-central Florida was used for the equation development. Two methods were used: an observations-based (OBS) method that incorporated data from all stations, and a persistence climatology (PCL) method used as the benchmark. Equations were developed for 1-, 2-, and 3-hour lead times at each hour of the day. A comparison between the two methods indicated that the OBS equations performed well and produced an improvement over the PCL equations. Therefore, the conclusion of the AMU study is that OBS equations produced more accurate forecasts than the PCL equations, and can be used in operations. They provide another tool with which to make the ceiling forecasts that are critical to safe Shuttle landings at KSC.

  16. Final report development of a regional nitrogen ceiling; Eindrapportage ontwikkeling regionaal stikstofplafond

    Energy Technology Data Exchange (ETDEWEB)

    Bleeker, A.; Hensen, A. [ECN Environment and Energy Engineering, Petten (Netherlands); Rougoor, C. [Centrum voor Landbouw en Milieu CLM, Culemborg (Netherlands)

    2013-01-15

    The development of a methodology in which integrated nitrogen ceilings can be studied on a regional level is described. Next to the agricultural sector, also other sectors are taken into consideration (traffic, industry, etc.) with respect to the development of the nitrogen ceiling methodology. The study consists of two parts: the feasibility of a nitrogen ceiling system and the actual development of such a system [Dutch] Deze rapportage beschrijft de ontwikkeling van een methodiek waarbij integrale stikstofplafonds op gebiedsniveau kunnen worden bestudeerd. Dit onderzoek beschouwt, naast landbouw, ook andere sectoren (verkeer, industrie, etc.) voor het ontwikkelen van de stikstofplafond methodiek. Het onderzoek bestaat uit twee onderdelen: bestuderen van de haalbaarheid van een stikstofplafond systematiek en het feitelijke ontwikkelen van een dergelijke systematiek.

  17. Effects of acoustic ceiling units on the cooling performance of thermally activated building systems (TABS)

    DEFF Research Database (Denmark)

    Lacarte, Luis Marcos Domínguez; Rage, Niels; Kazanci, Ongun Berk

    2017-01-01

    removed by the TABS when 43% of the ceiling area was covered with free hanging horizontal sound absorbers at 300 mm (0.98 ft) from the active surface. This reduction was 23% for a ceiling coverage ratio of 60%. The decrease in heat absorbed by the TABS is less pronounced in the case of vertical sound...... absorbers for equivalent levels of sound absorption. A reduction of 12% of the heat removed by the TABS has been measured for vertical sound absorbers (equivalent sound absorption levels to 60% coverage ratio with horizontal sound absorbers). This reduction was of 13% for vertical sound absorbers...... the effects of two types of free hanging ceiling absorbers (horizontal and vertical) on the cooling performance of the TABS and the implications this has on the occupant thermal comfort. The measurements were carried out in a full-scale TABS test facility. The results show a reduction of 11% of the heat...

  18. Thermal environment and air quality in office with personalized ventilation combined with chilled ceiling

    DEFF Research Database (Denmark)

    Lipczynska, Aleksandra; Kaczmarczyk, Jan; Melikov, Arsen Krikor

    2015-01-01

    in thermal environment were found between studied systems. The room air mixing with PV working alone was at the same level as with mixing ventilation. No substantial differences in contaminants' concentration distribution and air-change effectiveness were found between the studied systems in the occupied......The thermal environment and air quality conditions provided with combined system of chilled ceiling and personalized ventilation (PV) were studied in a simulated office room for two occupants. The proposed system was compared with total volume HVAC solutions used today, namely mixing ventilation...... and chilled ceiling combined with mixing ventilation. The objective of the study was to evaluate whether PV can be the only ventilation system in the rooms equipped with chilled ceiling. The room air temperature was 26°C in cases with traditional systems and 28°C when PV was used. PV supplied air...

  19. Integrated Solution in an Office Room with Diffuse Ceiling Ventilation and Thermally Activated Building Constructions

    DEFF Research Database (Denmark)

    Zhang, Chen; Heiselberg, Per Kvols; Pomianowski, Michal Zbigniew

    2015-01-01

    -scale experiments in a climate chamber. The experimental results indicate that diffuse ceiling can significantly improve thermal comfort in the occupied zone, by reducing draught risk and vertical temperature gradient. The linear function between pressure drop and air change rate points out that the air flow......An integrated system is proposed in this study to combine diffuse ceiling ventilation with a thermally activated building construction (TABS), aiming to provide cooling/ heating and ventilation to an office room all year around. The performance of the integrated system is evaluated by full...... through diffuse ceiling is laminar. A thermal decay is found in the plenum air and the thermal performance of TABS may be influenced by water flow and air flow direction....

  20. Experimental Study of an Integrated System with Diffuse Ceiling Ventilation and Thermally Activated Building Constructions

    DEFF Research Database (Denmark)

    Zhang, Chen; Yu, Tao; Heiselberg, Per

    of thermal comfort and energy performance. 20 cases with different boundary conditions are conducted varying on climate condition heat load. TABS water temperature and flow rate with or without diffuse ceiling. The energy evaluation includes energy balance of test room and cooling or heating capacity of TABS....... And the thermal comfort is analyzed by draught rate vertical temperature gradient and radiant temperature asymmetry. Finally the effect of plenum and diffuse ceiling is discussed. This report mainly focuses on the experiment results and discussions. Therefore, some details about the measurement are not presented......The experiments are carried out in a climate chamber located at the Department of Civil Engineering Aalborg University. The objective of the experiments is to evaluate the performance of the system combining diffuse ceiling ventilation and thermally activated building construction (TABS) in terms...

  1. An Efficient Ceiling-view SLAM Using Relational Constraints Between Landmarks

    Directory of Open Access Journals (Sweden)

    Hyukdoo Choi

    2014-01-01

    Full Text Available In this paper, we present a new indoor 'simultaneous localization and mapping‘ (SLAM technique based on an upward-looking ceiling camera. Adapted from our previous work [17], the proposed method employs sparsely-distributed line and point landmarks in an indoor environment to aid with data association and reduce extended Kalman filter computation as compared with earlier techniques. Further, the proposed method exploits geometric relationships between the two types of landmarks to provide added information about the environment. This geometric information is measured with an upward-looking ceiling camera and is used as a constraint in Kalman filtering. The performance of the proposed ceiling-view (CV SLAM is demonstrated through simulations and experiments. The proposed method performs localization and mapping more accurately than those methods that use the two types of landmarks without taking into account their relative geometries.

  2. Peak and ceiling effects in final-product analysis of mastoidectomy performance

    DEFF Research Database (Denmark)

    West, N; Konge, L; Cayé-Thomasen, P

    2015-01-01

    BACKGROUND: Virtual reality surgical simulation of mastoidectomy is a promising training tool for novices. Final-product analysis for assessing novice mastoidectomy performance could be limited by a peak or ceiling effect. These may be countered by simulator-integrated tutoring. METHODS: Twenty......-two participants completed a single session of self-directed practice of the mastoidectomy procedure in a virtual reality simulator. Participants were randomised for additional simulator-integrated tutoring. Performances were assessed at 10-minute intervals using final-product analysis. RESULTS: In all, 45.5 per...... cent of participants peaked before the 60-minute time limit. None of the participants achieved the maximum score, suggesting a ceiling effect. The tutored group performed better than the non-tutored group but tutoring did not eliminate the peak or ceiling effects. CONCLUSION: Timing and adequate...

  3. Experimental evaluation of heat transfer coefficients between radiant ceiling and room

    DEFF Research Database (Denmark)

    Causone, Francesco; Corgnati, Stefano P.; Filippi, Marco

    2009-01-01

    The heat transfer coefficients between radiant surfaces and room are influenced by several parameters: surfaces temperature distributions, internal gains, air movements. The aim of this paper is to evaluate the heat transfer coefficients between radiant ceiling and room in typical conditions of o...... in the literature, indicating limitations and possibilities of radiant ceiling systems improvement.......The heat transfer coefficients between radiant surfaces and room are influenced by several parameters: surfaces temperature distributions, internal gains, air movements. The aim of this paper is to evaluate the heat transfer coefficients between radiant ceiling and room in typical conditions...... and convection or as one total parameter, but this choice may lead to different considerations about thermal performance of the system. In order to perform correct evaluations, it is therefore extremely important to use the proper reference temperature. The obtained values confirm tendencies found...

  4. Measurements of the response of transport aircraft ceiling panels to fuel pool fires

    Science.gov (United States)

    Bankston, C. P.; Back, L. H.

    1985-01-01

    Tests were performed to characterize the responses of various aircraft ceiling panel configurations to a simulated post-crash fire. Attention was given to one currently used and four new ceiling configurations exposed to a fuel pool fire in a circulated air enclosure. The tests were controlled to accurately represent conditions in a real fire. The panels were constructed of fiberglass-epoxy, graphite-phenolic resin, fiberglass-phenolic resin, Kevlar-epoxy, and Kevlar-phenolic resin materials. The phenolic resin-backed sheets performed the best under the circumstances, except when combined with Kevlar, which became porous when charred.

  5. Experimental investigations of heat transfer in thermo active building systems in combination with suspended ceilings

    DEFF Research Database (Denmark)

    Alvarez, Maria Alonso; Hviid, Christian Anker; Weitzmann, Peter

    2014-01-01

    Thermo Active Building Systems (TABS), described as radiant heating or cooling systems with pipes embedded in the building structure, represent a sustainable alternative to replace conventional systems by using source temperatures close to room temperatures. The use of suspended ceiling in office...... buildings to cover acoustic requirements hinders the use of TABS. To measure the reduction of the heat capacity, several experiments are performed in a room equipped with TABS in the upper deck and mixing ventilation. The heat transfer is measured for different suspended ceiling covering percentages...

  6. Effect of façade systems on the performance of cooling ceilings: In situ measurements

    Directory of Open Access Journals (Sweden)

    Katharina Eder

    2015-03-01

    Full Text Available This article presents an innovative façade system designed to increase the thermal comfort inside an office room and to enhance the cooling capacity of the suspended cooling ceiling. A series of measurements is conducted in an existing office building with different façade systems (i.e., a combination of glazing and shading. An innovative façade system is developed based on this intensive set of measurements. The new system enhances the thermal comfort and cooling capacity of the suspended cooling ceiling. The main usage of the new system is the refurbishment and improvement of existing façade systems.

  7. 26 CFR 1.501(h)-3 - Lobbying or grass roots expenditures normally in excess of ceiling amount.

    Science.gov (United States)

    2010-04-01

    ... 26 Internal Revenue 7 2010-04-01 2010-04-01 true Lobbying or grass roots expenditures normally in... § 1.501(h)-3 Lobbying or grass roots expenditures normally in excess of ceiling amount. (a) Scope... in § 56.4911-7(e)) either normally makes lobbying expenditures in excess of its lobbying ceiling...

  8. What Do We Know about Glass Ceiling Effects? A Taxonomy and Critical Review to Inform Higher Education Research

    Science.gov (United States)

    Jackson, Jerlando F. L.; O'Callaghan, Elizabeth M.

    2009-01-01

    The concept of "glass ceiling effects" has emerged in social science research in general and higher education in particular over the past 20 years. These studies have described the impediments that women and people of color encounter in their quest for senior-level positions (e.g., CEOs) in society as glass ceiling effects. Literature, both…

  9. DETECTION OF BACTERIAL CYTOTOXIC ACTIVITIES FROM WATER-DAMAGED CEILING TILE MATERIAL FOLLOWING INCUBATION ON BLOOD AGAR

    Science.gov (United States)

    Samples of ceiling tiles with high levels of bacteria exhibited cytotoxic activities on a HEP-2 tissue culture assay. Ceiling tiles containing low levels of bacterial colonization did not show cytotoxic activities on the HEP-2 tissue culture assay. Using a spread plate procedure ...

  10. Air Distribution and Ventilation Effectiveness in a room with Floor/Ceiling Heating and Mixing/Displacement Ventilation

    DEFF Research Database (Denmark)

    Wu, Xiaozhou; Fang, Lei; Olesen, Bjarne W.

    2014-01-01

    vertical air temperature differences and air velocities for different hybrid systems are less than 3 C and 0.2 m/s when supply air temperature is 19 C, air change rate is 4.2 h-1, and heated surface temperature of floor/ceiling heating system is 25 C. Ventilation effectiveness of mixing ventilation system...... combined with floor/ceiling heating systems is approximately equal to 1.0, and ventilation effectiveness of displacement ventilation system combined with floor/ceiling heating systems ranges from 1.0 to 1.2. The floor/ceiling heating systems combined with mixing ventilation system have more uniform indoor...... air distribution but smaller ventilation effectiveness compared with the floor/ceiling heating systems combined with displacement ventilation system. With regard to the building heat loss increased by non-uniform indoor air distribution and small ventilation effectiveness, there should be an optimal...

  11. Working beyond the Glass Ceiling: Women Managers in Initial Teacher Training in England

    Science.gov (United States)

    Thompson, Barbara

    2007-01-01

    Recently in England, women have been successful in obtaining managerial responsibilities in the field of teacher training. In this setting at least, it could be argued that the glass ceiling that has kept women in lower-paid and lower status posts has been shattered. In order to explore this proposition from the perspective of those who work as…

  12. Making Sense of the Glass Ceiling in Schools: An Exploration of Women Teachers' Discourses

    Science.gov (United States)

    Moreau, Marie-Pierre; Osgood, Jayne; Halsall, Anna

    2007-01-01

    There is extensive evidence of a "glass ceiling" for women across the labour market. Though schools have widely been described as "feminized" work environments, the under-representation of women at school management level is well established. Based on a study of women teachers' careers and promotion in the English school sector…

  13. Comments by ABCT's first female president on overcoming the glass ceiling.

    Science.gov (United States)

    Nelson-Gray, Rosemery O

    2012-12-01

    At the annual convention of the Association for Behavioral and Cognitive Therapies in New York City in November 2009, a most interesting panel discussion occurred: Overcoming the Glass Ceiling: A Conversation With the Trailblazers. This article is a written version of my oral presentation at this panel discussion in my role as ABCT's first female president. Copyright © 2012. Published by Elsevier Ltd.

  14. The Glass Ceiling for Women in Legal Education: Contract Positions and the Death of Tenure.

    Science.gov (United States)

    Angel, Marina

    2000-01-01

    Discussion of the glass ceiling for women in legal education first examines categories of law school personnel, especially the fast-growing category of legal-writing teachers, and then considers trends in law school hiring. Concludes that law school trends mirror those in college and university hiring generally, suggesting the weakening and…

  15. Perceptions of Women in Management: A Thematic Analysis of Razing the Glass Ceiling

    Science.gov (United States)

    Baumgartner, Mindy S.; Schneider, David E.

    2010-01-01

    Despite advances that women have made in organizations over the past century, women continue to be underrepresented in upper management positions. Based on a review of literature, six issues that women face when encountering the glass ceiling were examined. The goal of the current study involved having women who have succeeded at breaking the…

  16. Between Meditation and Propaganda. Explicit and Implicit Religious Imagery in Baroque Ceiling Painting

    Czech Academy of Sciences Publication Activity Database

    Mádl, Martin

    2011-01-01

    Roč. 16, 1/2 (2011), s. 11-28 ISSN 1408-0419 R&D Projects: GA ČR GA408/08/0745 Institutional research plan: CEZ:AV0Z80330511 Keywords : baroque * ceiling painting * iconography * church Subject RIV: AL - Art, Architecture, Cultural Heritage

  17. 42 CFR 413.40 - Ceiling on the rate of increase in hospital inpatient costs.

    Science.gov (United States)

    2010-10-01

    ... October 1, 2002, is the percentage increase projected by the hospital market basket index. (4) Target... target amount for the previous cost reporting period, updated by the market basket percentage increase... section. (3) Definitions. As used in this section— Ceiling is the aggregate upper limit on the amount of a...

  18. Microbial Volatile Organic Compound Emissions from Stachybotrys chartarum growing on Gypsum Wallboard and Ceiling tile

    Science.gov (United States)

    This study compared seven toxigenic strains of S. chartarum found in water-damaged buildings to characterize the microbial volatile organic compound (MVOC) emissions profile while growing on gypsum wallboard (W) and ceiling tile (C) coupons. The inoculated coupons with their sub...

  19. Beyond the Glass Ceiling : The Glass Cliff and Its Lessons for Organizational Policy

    NARCIS (Netherlands)

    Bruckmueller, Susanne; Ryan, Michelle K.; Rink, Floor; Haslam, S. Alexander

    It has been almost 30 years since the metaphor of the glass ceiling was coined to describe the often subtle, but very real, barriers that women face as they try to climb the organizational hierarchy. Here we review evidence for a relatively new form of gender discriminationcaptured by the metaphor

  20. Repairing Roofs and Ceilings: How To's for the Handy Homeowner

    Energy Technology Data Exchange (ETDEWEB)

    None

    2006-01-01

    This brochure provides handy homeowners with tips on how to properly repair roofs and ceilings in their homes that sustained damage during a hurricane. This publications is a part of the How To's for the Handy Homeowner Series.

  1. Dealing with fixed emissions ceilings in an uncertain future: Offsetting under environmental integrity.

    Science.gov (United States)

    Wagner, Fabian; Schöpp, Wolfgang; Amann, Markus

    2013-11-15

    National emission ceilings are a policy instrument to reduce adverse environmental impacts of transboundary air pollution. Such ceilings for SO2, NOx, NH3 and VOC are established, for example, in the Gothenburg Protocol of the Convention on Long-range Transboundary Air Pollution (UNECE, 1999) and the National Emission Ceilings (NEC) Directive of the European Union (EC, 2001a, b). They prescribe for each pollutant a fixed upper limit on emissions for a specific year. Flexibility in achieving them could lower implementation costs if reality develops differently from what was foreseen during negotiations. In this paper, we explore the conditions under which emission reductions for one pollutant (e.g., SO2) could be offset by additional cuts of another pollutant (e.g., NOx) within the same country, without compromising the environmental improvements that are envisaged from the original set of emission ceilings. We employ the impact module of the GAINS (Greenhouse gas - Air pollution Interactions and Synergies) model to examine possible exchange rates across pollutants for the 2012 negotiations on the revision of the Gothenburg Protocol in Europe. Our analysis shows that exchange rates that satisfy the environmental integrity condition can be established, but that their values vary substantially across countries. Extending the environmental integrity condition to downwind countries will require significantly higher exchange rates. We discuss aspects that decision makers would need to consider before adopting an offsetting schema for future international environmental agreements. Copyright © 2013 Elsevier Ltd. All rights reserved.

  2. Reframing the Glass Ceiling as a Socially Constructed Process: Implications for Understanding and Change.

    Science.gov (United States)

    Buzzanell, Patrice M.

    1995-01-01

    Argues that traditional definitions of "glass ceiling" perpetuate gender-biased organizational practices and create an illusion of women's opportunity, preventing critical assessment of contemporary organizational practices and of gendered communication. Creates awareness of unjust organizing processes by juxtaposing the ordinary ways of "doing…

  3. The relationship between glass ceiling and power distance as a cultural variable by a new method

    Directory of Open Access Journals (Sweden)

    Naide Jahangirov

    2015-12-01

    Full Text Available Glass ceiling symbolizes a variety of barriers and obstacles that arise from gender inequality at business life. With this mind, culture influences gender dynamics. The purpose of this research was to examine the relationship between the glass ceiling and the power distance as a cultural variable within organizations. Gender variable is taken as a moderator variable in relationship between the concepts. In addition to conventional correlation analysis, we employed a new method to investigate this relationship in detail. The survey data were obtained from 109 people working at a research center which operated as a part of the non-profit private university in Ankara, Turkey. The relationship between the variables was revealed by a new method which was developed as an addition to the correlation in survey. The analysis revealed that the female staff perceived the glass ceiling and the power distance more intensely than the male staff. In addition, the medium level relation was determined between the power distance and the glass ceiling perception among female staff.

  4. Giuseppe Bragalli and Bolognese ceiling painting in the Czech Lands in the 17th century

    Czech Academy of Sciences Publication Activity Database

    Mádl, Martin

    2011-01-01

    Roč. 59, č. 5 (2011), s. 350-379 ISSN 0049-5123 R&D Projects: GA ČR GA408/08/0745 Institutional research plan: CEZ:AV0Z80330511 Keywords : baroque art * painting * ceiling painting * architecture Subject RIV: AL - Art, Architecture, Cultural Heritage

  5. Performance of Chilled Beam with Radial Swirl Jet and Diffuse Ceiling Air Supply in Heating Mode

    DEFF Research Database (Denmark)

    Bertheussen, Bård; Mustakallio, Panu; Melikov, Arsen Krikor

    2013-01-01

    The performance of diffuse ceiling air supply and chilled beam with swirl jet (CSW) in heating mode (winter situation) was studied and compared with regard to the generated indoor environment. An office mock-up with one occupant was simulated in a test room (4.5 x 3.95 x 3.5 m3 (L x W x H...

  6. Is a Widening Gender Wage Gap Necessarily Caused by a Glass Ceiling?

    NARCIS (Netherlands)

    I.P. van Staveren (Irene)

    2012-01-01

    textabstractContrary to what is generally assumed, the gender wage gap and the glass ceiling may not necessarily be positively related. An exploratory analysis of aggregate public service personnel data for Uganda shows that the gender wage gap is small at the middle level of management, whereas it

  7. Field measurements of moisture variation in cold ventilated attics with different ceiling constructions

    DEFF Research Database (Denmark)

    Hansen, Thor; Møller, Eva B.

    2017-01-01

    Adding insulation material on ceilings against cold ventilated attics is one of the most straightforward tasks of adding insulation. Theoretically, a higher amount of insulation in the attic decreases the temperature and consequently the capability of removing infiltrated indoor humid air. Field...

  8. Airflow Pattern and Performance Analysis of Diffuse Ceiling Ventilation in an Office Room using CFD Study

    DEFF Research Database (Denmark)

    Zhang, Chen; Chen, Qingyan; Heiselberg, Per Kvols

    2015-01-01

    geometrical model and the other is a porous media model. The numerical models are validated by the full-scale experimental studies in a climate chamber. The results indicate that porous media model performed better on predicting air flow characteristic below diffuse ceiling and air velocity near the floor...

  9. Numerical investigation of diffuse ceiling ventilation in an office under different operating conditions

    DEFF Research Database (Denmark)

    Hviid, Christian Anker; Petersen, Steffen

    2014-01-01

    is a numerical study of the performance of a six person office equipped with diffuse ventilation ceiling. In total six extreme, yet realistic, operation scenarios were simulated to study the performance including different occupancy, ventilation rates and supply air temperatures. The performance was studied...

  10. An experimental investigation devoted to determine heat transfer characteristics in a radiant ceiling heating system

    Science.gov (United States)

    Koca, Aliihsan; Acikgoz, Ozgen; Çebi, Alican; Çetin, Gürsel; Dalkilic, Ahmet Selim; Wongwises, Somchai

    2018-02-01

    Investigations on heated ceiling method can be considered as a new research area in comparison to the common wall heating-cooling and cooled ceiling methods. In this work, heat transfer characteristics of a heated radiant ceiling system was investigated experimentally. There were different configurations for a single room design in order to determine the convective and radiative heat transfer rates. Almost all details on the arrangement of the test chamber, hydraulic circuit and radiant panels, the measurement equipment and experimental method including uncertainty analysis were revealed in detail indicating specific international standards. Total heat transfer amount from the panels were calculated as the sum of radiation to the unheated surfaces, convection to the air, and conduction heat loss from the backside of the panels. Integral expression of the view factors was calculated by means of the numerical evaluations using Matlab code. By means of this experimental chamber, the radiative, convective and total heat-transfer coefficient values along with the heat flux values provided from the ceiling to the unheated surrounding surfaces have been calculated. Moreover, the details of 28 different experimental case study measurements from the experimental chamber including the convective, radiative and total heat flux, and heat output results are given in a Table for other researchers to validate their theoretical models and empirical correlations.

  11. Piercing the sovereign ceiling: Issues in oil and gas project financing

    International Nuclear Information System (INIS)

    Coleman, T.S.

    1998-01-01

    In the oil and gas sector, corporations and governments face huge capital spending requirements in order to transform large resource discoveries into producing, cash-generating assets. A significant portion of this funding is expected to be done on a project finance basis, where bank lenders or bond investors take a secured position in financing a discrete project, with the expectation of being paid back by the cash flows from that project after completion. This trend is increasing demand for crediting rating services to provide credit ratings for these project financings. A key challenge is to analyze and rate credit-worthy projects in countries that have relatively low foreign currency sovereign ceilings due to economic, political, and financial risks. In most cases, the credit ratings for projects financed in currencies outside the host country are capped at the country''s foreign currency ceiling. However, in a few instances, mainly in the oil and gas sector, Moody''s has pierced the foreign currency ceiling or rated certain projects above the sovereign ratings of the countries where they are domiciled. The purpose of this article is to briefly explain some of the qualitative factors and considerations that have allowed Moody''s to pierce the ceiling in the oil and gas sector, with a focus on two recent and noteworthy projects: Ras Laffan Liquefied Natural Gas in Qatar and Petrozuata in Venezuela

  12. Modeling Outcomes with Floor or Ceiling Effects: An Introduction to the Tobit Model

    Science.gov (United States)

    McBee, Matthew

    2010-01-01

    In gifted education research, it is common for outcome variables to exhibit strong floor or ceiling effects due to insufficient range of measurement of many instruments when used with gifted populations. Common statistical methods (e.g., analysis of variance, linear regression) produce biased estimates when such effects are present. In practice,…

  13. The Law of the Ceiling of Expenses and its possible reflections in the information units

    OpenAIRE

    Cunha, Murilo Bastos da

    2018-01-01

    The editorial comments on the possible repercussions of the new Brazilian legislation, called the Ceiling of Expenditure Law, on the information units (libraries, archives and museums). In addition, are analyzed the articles included in the first issue of 2018 of the Ibero-American Journal of Information Science.

  14. Evaluation of environmental and physiological factors of a whole ceiling-type air conditioner using a salivary biomarker

    Energy Technology Data Exchange (ETDEWEB)

    Tahara, Yusuke; Yamaguchi, Masaki [Graduate School of Engineering, Iwate University, 4-3-5 Ueda, Morioka 020-8551 (Japan); Morito, Naomi; Nishimiya, Hajime; Yamagishi, Hideyuki [Asahi Kasei Homes Corporation, R and D Laboratories, 2-1 Samejima, Fuji, Shizuoka 416-8501 (Japan)

    2009-06-15

    In order to improve environmental condition such as humidity and airflow in living spaces, a whole ceiling-type air conditioner is proposed. This novel air conditioner exhaust dispersed airflow from the whole ceiling by using a 3-dimensional knit fabric. The purpose of this paper is to reveal the effects when controlling humidity and airflow using the whole ceiling-type air conditioner compared to a commercialized concentrated exhaust air conditioner (normal-type air conditioner) under the same temperature. Salivary {alpha}-amylase activity (SAA) was used as an index of sympathetic nervous activity. An acute experiment for a 15 min period was conducted using 12 healthy young female adults. No significant differences in room and skin temperatures were observed between the whole ceiling-type air conditioner and the normal-type air conditioner. The whole ceiling-type air conditioner showed 11.1% lower humidity than the normal-type air conditioner. The whole ceiling-type air conditioner showed one-thirteenth the airflow of the normal-type air conditioner. As a result, the PMV of the whole ceiling-type air conditioner was more comfortable level than the normal one. Moreover, subjective evaluation questionnaire revealed a significant difference was observed in wind perception (windy). The SAA of subjects under the whole ceiling-type air conditioner showed significantly low values compared with the normal-type air conditioner. It was found that the subject's sympathetic nervous activity has been inactivated under the conditions of the whole ceiling-type air conditioner. Thus, it was revealed that the whole ceiling-type air conditioner provides a more comfortable air environment by reducing physical stimulations to humans. (author)

  15. Monte Carlo simulations of ceiling scatter in nuclear medicine:99mTc,131I and18F.

    Science.gov (United States)

    Schnerr, Roald S; de Jong, Anouk N; Landry, Guillaume; Jeukens, Cécile R L P N; Wierts, Roel

    2017-03-01

    In the design of nuclear medicine treatment and examination rooms, an important consideration is the shielding required for ionizing radiation from the radioactive isotopes used. The shielding in the walls is normally limited to a height lower than the actual ceiling height. The direct radiation, possibly with build-up correction, can be calculated relatively easily. However, little data are available to estimate the dose contribution from ionizing radiation traveling over the wall shielding and scattering off the ceiling. We aim to determine the contribution of the ceiling scatter to the radiation dose outside nuclear medicine rooms. Monte Carlo simulations were performed using Gate for different heights of lead shielding in the wall, and different ceiling heights. A point source in air of 99m Tc (141 keV), 131 I (365 keV) or 18 F (511 keV) was placed 1.0 m above the floor, 3.0 m from the lead shielding. Simulations of ceiling scatter only and for the total radiation dose were performed for these 3 isotopes, 5 different ceiling heights and 4-8 different wall shielding heights, resulting in a total of 165 simulations. This allowed us to compare the contribution of the radiation passing through the shielding and the ceiling scatter. We find that the shielding required for the primary radiation, measured in half-value layers, is an important factor in determining the relative contribution of ceiling scatter. When more than about 4 half-value layers of shielding are used, ceiling scatter becomes the dominant factor and should be taken into account in the shielding design. In many practical cases for low energy photons (e.g. from 99m Tc; 141 keV; half-value layer of 0.26 mm lead), 2 mm of lead is used and ceiling scatter is a dominating factor contributing >~70% of the dose outside the shielded room. For higher energies (e.g. 18 F; 511 keV; half-value layer of 3.9 mm lead) the ceiling scatter is typically less than about 15% when 8 mm of lead shielding is

  16. 10 CFR Appendix V to Subpart B of... - Uniform Test Method for Measuring the Energy Consumption of Ceiling Fan Light Kits

    Science.gov (United States)

    2010-01-01

    ... of Ceiling Fan Light Kits V Appendix V to Subpart B of Part 430 Energy DEPARTMENT OF ENERGY ENERGY... Appendix V to Subpart B of Part 430—Uniform Test Method for Measuring the Energy Consumption of Ceiling Fan... of ceiling fan light kits. 2. Definitions: a. Input power means the actual total power used by all...

  17. Demonstration of an advanced solar garden with a water ceiling. Final technical report, July 1, 1979-June 30, 1980

    Energy Technology Data Exchange (ETDEWEB)

    Maes, R.; Riseng, C.; Thomas, G.; Mandeville, M.

    1980-09-01

    A history of the solar garden with the addition of the transparent water ceiling is presented, and a statement of the overall goals of the program is given. The objectives of the water ceiling grant are detailed. The rationale of the transparent water ceiling is developed and its implementation in the solar garden is described. The experimental procedures for evaluating the water ceiling as an integral part of an ongoing garden agricultural experiment are discussed and the results presented. The water ceiling has proven useful in providing extra thermal capacity to the solar garden. It provides heat at night after the water has been warmed during the day and retards overheating in the daytime by absorbing infrared energy into the water. In growing non-flowering plants, such as lettuce and Chinese cabbage, the water ceiling showed no noticeable degradation in yield or maturation rate. In flowering plants, such as tomatoes, the reduced light levels delayed yields by a couple of weeks but the total yield was only slightly diminished. In geographic areas where there is less cloud cover than in Michigan the water ceiling could be much more effective.

  18. Raising the "glass ceiling" for ethnic minority women in health care management.

    Science.gov (United States)

    Kumar, R; Johnston, G

    1999-01-01

    Ethnic minority women are well represented in the work force and in the health care system in general, but do not have a similar level of representation in the management sector. This paper explores three strategies for schools of health administration to consider to lessen the effect of a "glass ceiling" that may be encountered by ethnic minority women aspiring to positions of leadership in health services agencies. These strategies are advancing affirmative action, valuing ethnic women in health administration education, and investigating diversity management. Inherent in each of the three strategies is the need for acknowledgment and more open discussion of the "glass ceiling." Problem-solving in relation to the potential for systemic discrimination adversely affecting ethnic minority women in senior health care management positions, and greater study of the three strategies using both qualitative and quantitative methodologies is also needed.

  19. The analysis of glass ceiling phenomenon in the promotion of women’s abilities in organizations

    Directory of Open Access Journals (Sweden)

    Mahboubeh Soleymanpour Omran

    2015-09-01

    Full Text Available Women constitute almost half of the workforce of a society and there has been considerable increase in women employment rate in recent years. However, their promotion to management positions has not been very tangible. Gender inequalities in the workplace especially in the domain of management have resulted in the lack of efficient use of potential capacities of women. Even though the previous research demonstrates that women are not less ambitious than men, wrong beliefs which attribute management to men make a kind of invisible barrier, known as glass ceiling, which prevents women’s promotion to top organizational positions. The purpose of this study was to investigate the reasons for the lack of promotion of women to top management levels in the society. It was conducted with a descriptive analytic method through the review of the related literature and emphasis on the concept of glass ceiling to present practical solutions to solve the problem.

  20. Research on the operation control strategy of the cooling ceiling combined with fresh air system

    Science.gov (United States)

    Huang, Tao; Li, Hao

    2018-03-01

    The cooling ceiling combined with independent fresh air system was built by TRNSYS. And the cooling effects of the air conditioning system of an office in Beijing in a summer typical day were simulated. Based on the “variable temperature” control strategy, the operation strategy of “variable air volume auxiliary adjustment” was put forward. The variation of the indoor temperature, the indoor humidity, the temperature of supplying water and the temperature of returning water were simulated under the two control strategies. The energy consumption of system during the whole summer was compared by utilizing the two control strategies, and the indoor thermal comfort was analyzed. The optimal control strategy was proposed under the condition that the condensation on the surface of the cooling ceiling is not occurred and the indoor thermal comfort is satisfied.

  1. Hydro turbine governor’s power control of hydroelectric unit with sloping ceiling tailrace tunnel

    Science.gov (United States)

    Fu, Liang; Wu, Changli; Tang, Weiping

    2018-02-01

    The primary frequency regulation and load regulation transient process when the hydro turbine governor is under the power mode of hydropower unit with sloping ceiling tailrace are analysed by field test and numerical simulation in this paper. A simulation method based on “three-zone model” to simulate small fluctuation transient process of the sloping ceiling tailrace is proposed. The simulation model of hydraulic turbine governor power mode is established by governor’s PLC program identification and parameter measurement, and the simulation model is verified by the test. The slow-fast-slow “three-stage regulation” method which can improve the dynamic quality of hydro turbine governor power mode is proposed. The power regulation strategy and parameters are optimized by numerical simulation, the performance of primary frequency regulation and load regulation transient process when the hydro turbine governor is under power mode are improved significantly.

  2. Windows in the ceiling ... leadership advice and strategies from successful female executives

    OpenAIRE

    Setili, Colleen M.

    2001-01-01

    This thesis provides a framework for understanding specific strategies and personal characteristics women can utilize to enable them to reach the top levels of an organization. In order to do so, current literature was reviewed that was written primarily from a female perspective, and civilian women in high-grade positions working for the Army were interviewed to obtain their own personal strategies, personal characteristics, and opinions regarding the glass-ceiling concept and how to achieve...

  3. Ceiling of care decisions at an older person's mental health unit in Gloucestershire.

    Science.gov (United States)

    Slack, Philip; Rose, Anneka

    2015-01-01

    This quality improvement project was inspired as an answer to a problem that many fellow psychiatric trainees had been struggling with while on-call covering the old age mental health hospital which includes a specialist dementia ward. The issue was that decisions around ceilings of care for patients were often not discussed or at least recorded in the electronic notes and as a result when reviewing deteriorating patients out of hours trainees would find themselves without any guidance on the treating medics opinion on what was in the best interests of the patient. This led to situations where unnecessary transfers to the acute hospital would occur overnight which could have been avoided with more consistent planning. Prior to initiating the changes it was recorded that nine out of 47 inpatients had documented decisions on ceiling of care of treatment in the consultant's ward round entries. Next policies from acute hospitals were reviewed, opinions were discussed in departmental meetings, and eventually there was agreed a change in procedure with the consultant on the dementia ward around resuscitation and ceiling of care status and consistent recording of this. Following the intervention there was seen an improvement in the recording of decisions around treatment and transfer of patients on the dementia ward of 80% (4/5) fully compliant with new criteria and then 71% (5/7) in successive cycles. Further communication both with relevant professionals on the old age ward and with the trainees on the on-call rota will be necessary to sustain any change but the centralised recording of resuscitation status and ceiling of care in the ward round entries have provided much more guidance than was previously available. In the future it may be possible to spread this policy throughout the entire old age mental health unit.

  4. Design of walls and/or ceilings for radiation endangered or radiation exposed rooms

    International Nuclear Information System (INIS)

    Fischer, L.; Kraemer, P.; Seifert, A.; Scheler-Stoehr, W.; Lorenz, B.

    1986-01-01

    This invention has to do with wall or ceiling design for radiation endangered or radiation exposed rooms used for medical radiation therapy or industrial radiation applications (e.g. linear accelerators). The structure dispenses with moulds and reinforcement and consists of mountable precast concrete elements (bricks). Two elements form the structure's outer boundary surface. The interspace between them is filled with additional shielding materials like wet concrete, soil or other precast concrete elements

  5. In situ characterisation of readhesion treatments for ceiling paintings using unilateral NMR

    OpenAIRE

    Richardson, E.; Woolley, E.; Corda, K.; Julien-Lees, S.; Pinchin, S.; Roberts, Z.

    2017-01-01

    Ceiling and wall paintings pose significant challenges for historic house management due to their position at the interface between the environment and the building. Tight restrictions to modifications on built heritage prevent total control of the environment, resulting in temperature and humidity fluctuations. Different hygrothermal responses within the wall painting stratigraphy frequently lead to fracturing and lifting of paint layers, necessitating remedial conservation to readhere areas...

  6. Underrepresentation of women at academic excellence and position of power: role of harassment and glass ceiling

    OpenAIRE

    Yousaf, Rizwana; Schmiede, Rudi

    2016-01-01

    The study intends to comprehend the underrepresentation of women on positions of power and academic excellence in academia. The study explained the role of exploitation and harassment, which might hinder, when women were trying to climb to top hierarchical position. The majority of women supervised by male heads, sexual harassment could be used as a glass ceiling to hamper women to reach top hierarchal level. The majority participants were working on lower academic and administ...

  7. Preliminary research on the glass ceiling phenomenon in accounting and financial audit practice in Poland

    Directory of Open Access Journals (Sweden)

    Aleksandra Szewieczek

    2017-09-01

    Full Text Available Preliminary research on the glass ceiling phenomenon in accounting and financial audit practice in Poland The paper analyzes the glass ceiling phenomenon in the accounting practice in Poland. The essence and characteristics of this phenomenon are presented in relation to the accounting profession and statutory auditors. Research on the ‘glass ceiling’ carried out in various countries, with a particular reference to the profession of a statutory auditor, was reviewed. The paper presents results of the research on the phenomenon conducted among a selected sample of audit firms in Poland. The results of the study confirmed the occurrence of this phenomenon in Poland with greater intensity in larger entities. The large scale of the glass ceiling phenomenon in the professional life of women in accounting is reflected by a high percentage of women in the profession of statutory auditor contrasted by the very low participation in senior managerial positions, e.g. partners in auditing companies. The paper uses the method of critical analysis of the literature and empirical data. Moreover, qualitative analysis was used for the data reported by audit firms

  8. Does drywall installers' innovative idea reduce the ergonomic exposures of ceiling installation: A field case study.

    Science.gov (United States)

    Dasgupta, Priyadarshini Sengupta; Punnett, Laura; Moir, Susan; Kuhn, Sarah; Buchholz, Bryan

    2016-07-01

    The study was conducted to assess an intervention suggested by the workers to reduce the physical or ergonomic exposures of the drywall installation task. The drywall installers were asked to brainstorm on innovative ideas that could reduce their ergonomic exposures during the drywall installation work. The workers proposed the idea of using a 'deadman' (narrow panel piece) to hold the panels to the ceiling while installing them. The researcher collected quantitative exposure data (PATH, 3DSSPP) at the baseline and intervention phases and compared the phases to find out any change in the exposure while using the 'deadman'. Results showed that ergonomic exposures (such as overhead arm and awkward trunk postures and heavy load handling) were reduced at the intervention phase while using the 'deadman' with an electrically operated lift. The concept of the 'deadman', which was shown to help reduce musculoskeletal exposures during ceiling installation, can be used to fabricate a permanent ergonomic tool to support the ceiling drywall panel. Copyright © 2016 Elsevier Ltd and The Ergonomics Society. All rights reserved.

  9. Has the Copayment Ceiling Improved Financial Protection in the Korean National Health Insurance System? Evidence From the 2009 Policy Change.

    Science.gov (United States)

    Lee, Tae-Jin; Cheong, Chelim

    2017-11-01

    To relieve the financial burden faced by households, the Korean National Health Insurance (NHI) system introduced a "copayment ceiling," which evolved into a differential ceiling in 2009, with the copayment ceiling depending on patients' income. This study aimed to examine the effect of the differential copayment ceiling on financial protection and healthcare utilization, particularly focusing on whether its effects varied across different income groups. This study obtained data from the Korea Health Panel. The number of households included in the analysis was 6555 in 2008, 5859 in 2009, 5539 in 2010, and 5372 in 2011. To assess the effects of the differential copayment ceiling on utilization, out-of-pocket (OOP) payments, and catastrophic payments, various random-effects models were applied. Utilization was measured as treatment days, while catastrophic payments were defined as OOP payments exceeding 10% of household income. Among the right-hand side variables were the interaction terms of the new policy with income levels, as well as a set of household characteristics. The differential copayment ceiling contributed to increased utilization regardless of income levels both in all patients and in cancer patients. However, the new policy did not seem to reduce significantly the incidence of catastrophic payments among cancer patients, and even increased the incidence among all patients. The limited effect of the differential ceiling can be attributed to a high proportion of direct payments for services not covered by the NHI, as well as the relatively small number of households benefiting from the differential ceilings; these considerations warrant a better policy design.

  10. Experimental study of diffuse ceiling ventilation coupled with a thermally activated building construction in an office room

    DEFF Research Database (Denmark)

    Zhang, Chen; Heiselberg, Per Kvols; Pomianowski, Michal Zbigniew

    2015-01-01

    This paper presents and analyses the performance of an integrated system with diffuse ceiling ventilation and a thermally activated building construction. A full-scale experiment is carried out in a hot box with an office setup. The performance of the integrated system is evaluated under differen...... throughout the entire ceiling area and the radiation cooling potential of diffuse ceiling is not sufficient. Thus, a further study should be conducted on optimizing diffuse ceiling and plenum design.......This paper presents and analyses the performance of an integrated system with diffuse ceiling ventilation and a thermally activated building construction. A full-scale experiment is carried out in a hot box with an office setup. The performance of the integrated system is evaluated under different...... the opposite effect on energy performance when TABS is activated in heating or cooling mode. Finally, the air temperature distribution in the plenum and the surface temperature distribution of the diffuse ceiling point out that the air does not perfectly mix in the plenum, the air is not evenly distributed...

  11. Effect of a ceiling fan ventilation system on finishing young bulls' health, behaviour and growth performance.

    Science.gov (United States)

    Magrin, L; Brscic, M; Lora, I; Rumor, C; Tondello, L; Cozzi, G; Gottardo, F

    2017-06-01

    This research aimed at assessing the effects of a ceiling fan ventilation system on health, feeding, social behaviour and growth response of finishing young bulls fattened indoors during a mild summer season. A total of 69 Charolais young bulls were housed in six pens without any mechanical ventilation system (Control) and in six pens equipped with ceiling fans. The experimental period lasted 98 days from June until mid-September 2014. Four experimental days were considered in order to assess the effect of the ventilation system under two different microclimatic conditions: 2 alert days at monthly interval with temperature humidity index (THI) between 75 and 78, and 2 normal days with THI⩽74. Health and behaviour of the bulls were evaluated through 8-h observation sessions starting after morning feed delivery. The study was carried out during a rather cool summer with a climate average THI of 68.9 and 4 days with average THI>75. Despite these mild climate conditions, ceiling fans lowered litter moisture and acted as a preventive measure for bulls' dirtiness (odd ratio=47.9; 95% CI 19.6 to 117.4). The risk of abnormal breathing was increased for Control bulls (odd ratio=40.7; 95% CI 5.4 to 304.2). When exposed to alert THI conditions, respiration rate and panting scores increased and rumination duration dropped in Control bulls compared with bulls provided with a ceiling fan. During observations under alert THI, bulls spent less time eating, more time being inactive and consumed more water compared with normal THI conditions. Bulls' daily dry matter intake measured during the observation sessions decreased on alert compared with normal THI days (Pbehaviour (rumination, lying down and drinking water) and respiration rate, however. The lack of a significant improvement of bulls' growth response should not discourage beef farmers from using ceiling fans in indoor systems, considering the likely increase in frequency and intensity of heat waves in the planet

  12. Is there still a glass ceiling for women in academic surgery?

    Science.gov (United States)

    Zhuge, Ying; Kaufman, Joyce; Simeone, Diane M; Chen, Herbert; Velazquez, Omaida C

    2011-04-01

    Despite the dramatically increased entry of women into general surgery and surgical subspecialties, traditionally male-dominated fields, there remains a gross under-representation of women in the leadership positions of these departments. Women begin their careers with fewer academic resources and tend to progress through the ranks slower than men. Female surgeons also receive significantly lower salaries than their male counterparts and are more vulnerable to discrimination, both obvious and covert. Although some argue that female surgeons tend to choose their families over careers, studies have actually shown that women are as eager as men to assume leadership positions, are equally qualified for these positions as men, and are as good as men at leadership tasks.Three major constraints contribute to the glass-ceiling phenomenon: traditional gender roles, manifestations of sexism in the medical environment, and lack of effective mentors. Gender roles contribute to unconscious assumptions that have little to do with actual knowledge and abilities of an individuals and they negatively influence decision-making when it comes to promotions. Sexism has many forms, from subtle to explicit forms, and some studies show that far more women report being discriminately against than do men. There is a lack of same-sex mentors and role models for women in academic surgery, thereby isolating female academicians further. This review summarizes the manifestation of the glass-ceiling phenomenon, identifies some causes of these inequalities, and proposes different strategies for continuing the advancement of women in academic surgery and to shatter the glass ceiling.

  13. Validation of a numerical model of acoustic ceiling combined with TABS

    DEFF Research Database (Denmark)

    Rage, Nils; Kazanci, Ongun Berk; Olesen, Bjarne W.

    2016-01-01

    in the heat flow from TABS; the difference between the numerical results and measurements is in the range of -6.9% to +5.2%. The second evaluates the impact on TABS cooling capacity coefficient and room temperatures. The simulated cases led to absolute differences +4.3% higher in average for the cooling...... Elements) developed to simulate partially covered suspended ceilings such as hanging sound absorbers. The tool is validated by numerically modelling a set of similar experiments carried out in full-scale by a previous study. For this, a total of 12 scenarios from two case studies have been modelled...

  14. Use of perforated acoustic panels as supply air diffusers in diffuse ceiling ventilation systems

    DEFF Research Database (Denmark)

    Iqbal, Ahsan; Kazemi, Seyed Hossein; Ardkapan, Siamak Rahimi

    Ventilation is needed for diluting and removing the contaminants, odour and excess heat from the building interior. It is important that the inhabitants perceive the ventilated spaces as comfortable. Therefore, the supply air should reach all parts of the occupied zones. Troldtekt has been...... manufacturing perforated acoustic panels for the last 13 years. The panels can be used not only in applications related to acoustics but also as low pressure drop supply air diffusers, particularly in diffuse ceiling ventilation systems. The present study verifies on a theoretically level the performance...

  15. Building America Case Study: Raised Ceiling Interior Duct System, New Smyrna, Florida (Fact Sheet)

    Energy Technology Data Exchange (ETDEWEB)

    2014-09-01

    One of BA-PIRC's longtime Habitat for Humanity partners, S.E. Volusia CO (SEVHFH), was interested in building a home to the new Challenge Home standards. SEVHFH routinely builds ENERGY STAR V3.1 homes. The only modification to their design needed to comply with the Challenge Home criteria was the interior duct requirement. Unwilling to incur the added costs of a foam roof deck or wall heights above 8 feet to accommodate a fur-down chase SEVHFH opted to build a fur-up or raised ceiling chase.

  16. De Soweto à Ceilândia: siglas de segregação racial

    OpenAIRE

    Oliveira Lemos, Guilherme

    2017-01-01

    A proposta desse trabalho é pensar relações comuns ou, pelo menos, aproximadas sobre os processos e os instrumentos de segregação urbana racial, generificada e social nas cidades de Soweto (Joanesburgo - África do Sul) e Ceilândia (Distrito Federal - Brasil) durante as décadas de 1950 e 1970. Para tanto, comparamos os dois processos de remoção das populações dos centros para as periferias e a (re)invenção dos tipos corpóreos (“candango”, “black”, “african”, “coloured”) destinados a ocupar os ...

  17. Impacto social do programa Esporte à Meia-Noite em Ceilândia

    OpenAIRE

    Santos, Peterson Mourão dos

    2013-01-01

    O presente estudo foi realizado com a população participante do projeto Esporte à Meia Noite do Núcleo de Ceilândia, com o objetivo de verificar o impacto social sobre os participantes do projeto, em relação ao meio social e suas expectativas de vida futura. A amostra foi composta de 30 participantes do projeto onde se utilizou um questionário com dezessete perguntas contendo 3, 5 ou 9 alternativas. Os entrevistados são jovens com idade entre 14 e 23 anos com predominância do sexo masculino e...

  18. Evaluating the efficiency of an asbestos stabilizer on ceiling tiles and the characteristics of the released asbestos fibers.

    Science.gov (United States)

    Jung, Hyun-Sung; Cha, Jun-Seok; Kim, Seongmi; Lee, Wooseok; Lim, Ho-ju; Kim, Hyunwook

    2015-12-30

    The efficiency of asbestos stabilizers and their adaptability were evaluated by investigating the characteristics of asbestos fibers released from ceiling tiles. The impact of such variables as the wind speed or vibration conditions was also studied along with the asbestos stabilizers. The concentrations of the asbestos fibers released from damaged ceiling tiles treated with stabilizers decreased by 69.5-84.4% compared with those of untreated tiles for all variables, with a statistically significant difference (ptiles and stabilizers were the main factors affecting the concentration, and the reliability of these factors was estimated as 58.3%. The lengths of the chrysotile fibers released from the damaged ceiling tiles were in the range of 0.991-79.1 μm for the untreated tiles and 3.74-35.6 μm for the tiles treated with inorganic stabilizers. It was confirmed that inorganic stabilizers are more efficient for damaged ceiling tiles. The results of this study also show that the asbestos concentrations are greatly reduced after treating damaged ceiling tiles with a stabilizer. Copyright © 2015 Elsevier B.V. All rights reserved.

  19. Women's health and women's leadership in academic medicine: hitting the same glass ceiling?

    Science.gov (United States)

    Carnes, Molly; Morrissey, Claudia; Geller, Stacie E

    2008-11-01

    The term "glass ceiling" refers to women's lack of advancement into leadership positions despite no visible barriers. The term has been applied to academic medicine for over a decade but has not previously been applied to the advancement of women's health. This paper discusses (1) the historical linking of the advances in women's health with women's leadership in academic medicine, (2) the slow progress of women into leadership in academic medicine, and (3) indicators that the advancement of women's health has stalled. We make the case that deeply embedded unconscious gender-based biases and assumptions underpin the stalled advancement of women on both fronts. We conclude with recommendations to promote progress beyond the apparent glass ceiling that is preventing further advancement of women's health and women leaders. We emphasize the need to move beyond "fixing the women" to a systemic, institutional approach that acknowledges and addresses the impact of unconscious, gender-linked biases that devalue and marginalize women and issues associated with women, such as their health.

  20. An Integrated Numerical and Experimental Analysis for Enhancing the Performance of the Hidden Ceiling Fan

    Directory of Open Access Journals (Sweden)

    Sheam-Chyun Lin

    2014-02-01

    Full Text Available Since the inlet and outlet of hidden ceiling fan are almost located at the same Plane; thus, an improper housing may cause inhale-return phenomenon which significantly affects its power consumption and performance. In this study, a comprehensive investigation by numerical and experimental techniques was used to predict and identify the flow pattern, airflow rate, efficiency, and noise for ceiling fans with different design parameters. The results showed that the unique inhale-return phenomenon happens for an inappropriate housing. Several key parameters, such as fan guard, housing ring, inlet-to-outlet area ratio, and blockage height, are evaluated for finding out the criterion to avoid the inhale-return flow. Consequently the study finds that fan guard changes the airflow to a wider distribution with a lower velocity. A minimum blockage distance and a maximum height of ring-plate are set at 80 mm and 30 mm, respectively. Also, it is suggested that the inlet area must be bigger than the outlet area. Moreover, all the parameters show the same trend under various rotational speeds. In conclusion, this systematic investigation not only provides the fan engineer's design ability to avoid the inhale-return phenomenon, but also the predicting capability on its aerodynamic and acoustic performances.

  1. The Spanish gasoline market: From ceiling regulation to open market pricing

    International Nuclear Information System (INIS)

    Contin, I.; Correlje, A.; Huerta, E.

    1999-01-01

    This paper examines the evolution of the Spanish gasoline market from the abolition of the state oil monopoly (January 1993) to complete liberalization (October 1998). With the restructuring of the Spanish oil sector during the 1980s and early 1990s, a highly concentrated oligopoly emerged in the automotive fuels market. A system of price ceilings replaced the state administered prices in July 1990. Since then, new domestic and foreign operators have entered the market, particularly along the coast, near import terminals. Prices went up and then declined. These developments can be explained by an interplay of factors such as: the gradual decline in co-operation among the Spanish firms; the loss of market share of the largest of these, Repsol; the entry of independent operators and supermarkets; and the impact of the ceiling price system. By mid-1998 this system was abolished as the government considered it an impediment to further market liberalization. However, some crucial barriers to the entry of new suppliers remain

  2. Feira Central de Ceilândia e gastronomia regional : patrimônios do Distrito Federal

    OpenAIRE

    Silva, Magna Pereira da

    2017-01-01

    A Feira Central de Ceilândia – FCC - nasceu junto com a cidade, Ceilândia, região administrativa de Brasília, é um reconhecido espaço dentro da cidade que se destaca por sua capacidade em atrair visitantes, tendo como seu maior atrativo uma gastronomia regional nordestina. Esta feira acompanhou todo o processo de formação de Ceilândia, cidade que se constituiu a partir de uma Campanha de Erradicação de Invasões – CEI, termo que se originou da Campanha de Erradicação de Favelas – CEF, nas déca...

  3. Proposal for the award of an industrial support contract for paintwork, false ceilings, plasterwork and false floors at CERN

    CERN Document Server

    2006-01-01

    This document concerns the award of a contract for paintwork, false ceilings, plasterwork and false floors at CERN. The Finance Committee is invited to agree to the negotiation of a contract with the firm PREZIOSO (FR), the lowest bidder, for the provision of paintwork, false ceilings, plasterwork and false floors at CERN for a period of three years for a total amount not exceeding 538 419 euros (830 381 Swiss francs), not subject to revision for the first two years. The contract will include options for two one-year extensions beyond the initial threeyear period.

  4. Radiant Ceiling Panels Combined with Localized Methods for Improved Thermal Comfort of Both Patient and Medical Staff in Patient Room

    DEFF Research Database (Denmark)

    Mori, Sakura; Barova, Mariya; Bolashikov, Zhecho Dimitrov

    2012-01-01

    The objectives were to identify whether ceiling installed radiant heating panels can provide thermal comfort to the occupants in a patient room, and to determine a method for optimal thermal environment to both patient and medical staff simultaneously. The experiments were performed in a climate...... chamber resembling a single-bed patient room under convective air conditioning alone or combined with the ceiling installed radiant heating panels. Two thermal manikins simulated a patient lying in the bed and a doctor standing next to the patient. Conventional cotton blanket, electric blanket, electric...

  5. Influence of a Cooled Ceiling on Indoor Air Quality in a Displacement Ventilated Room Examined by Means of Computational Fluid Dynamics

    DEFF Research Database (Denmark)

    Brohus, Henrik

    The influence of a cooled ceiling on the air quality in a displacement ventilated room is examined by means of CFD. The objective of the study is to examine how the flow field in a displacement ventilated room is influenced when a cooled ceiling removes a major part of the total heat I9ad, and in...

  6. 13 CFR 107.855 - Interest rate ceiling and limitations on fees charged to Small Businesses (“Cost of Money”).

    Science.gov (United States)

    2010-01-01

    ... issued by the Small Business. (h) How to evaluate compliance with the Cost of Money ceiling. You must... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false Interest rate ceiling and limitations on fees charged to Small Businesses (âCost of Moneyâ). 107.855 Section 107.855 Business Credit and...

  7. Breaking the glass ceiling: an interview with Dr. Shirley Graves, a pioneering woman in medicine.

    Science.gov (United States)

    Ahmed, Zulfiqar; Mai, Christine L; Elder, Badrea; Rodriguez, Samuel; Yaster, Myron

    2014-04-01

    Shirley Graves M.D., D.Sc. (honorary) (1936), Professor Emeritus of Anesthesiology and Pediatrics at the University of Florida, was one of the most influential women in medicine in the 1960 and 1970s, a time when the medical profession was overwhelmingly male-dominated. In today's society, it is hard to believe that only 50 years ago, women were scarce in the field of medicine. Yet Dr. Graves was a pioneer in the fields of pediatric anesthesia and pediatric critical care medicine. She identifies her development of the pediatric intensive care unit and her leadership in the Division of Pediatric Anesthesia at the University of Florida as her defining contributions. Through her journal articles, book chapters, national and international lectures, and leadership in the American Society of Anesthesiology and the Florida Society of Anesthesiology, she inspired a generation of men and women physicians to conquer the unthinkable and break through the glass ceiling. © 2014 John Wiley & Sons Ltd.

  8. Field evaluation of performance of radiant heating/cooling ceiling panel system

    DEFF Research Database (Denmark)

    Li, Rongling; Yoshidomi, Togo; Ooka, Ryozo

    2015-01-01

    As in many other countries in the world, Japan has witnessed an increased focus on low-energy buildings.For testing different engineering solutions for energy-efficient buildings, a low-energy building was builtat the University of Tokyo as an experimental pilot project. In this building, a radiant...... heating/coolingceiling panel system is used. However, no standard exists for the in situ performance evaluation of radiantheating/cooling ceiling systems; furthermore, no published database is available for comparison. Thus,this study aims to not only clarify the system performance but also to share our......, respectively. The upwardheat flux from the panels was found to be as large as 30–40% of the water heating/cooling capacity; thiswould translate into heat loss in certain operating modes. Several proposals for reducing the upwardheat flux were discussed. The measurements also showed that a category B thermal...

  9. Hierarchical rank and women's organizational mobility: glass ceilings in corporate law firms.

    Science.gov (United States)

    Gorman, Elizabeth H; Kmec, Julie A

    2009-03-01

    This article revives the debate over whether women's upward mobility prospects decline as they climb organizational hierarchies. Although this proposition is a core element of the "glass ceiling" metaphor, it has failed to gain strong support in previous research. The article establishes a firm theoretical foundation for expecting an increasing female disadvantage, with an eye toward defining the scope conditions and extending the model to upper-level external hires. The approach is illustrated in an empirical setting that meets the proposed scope conditions: corporate law firms in the United States. Results confirm that in this setting, the female mobility disadvantage is greater at higher organizational levels in the case of internal promotions, but not in the case of external hires.

  10. Constitutional guarantees gender equality and the reality of the 'glass ceiling' for women workers

    Directory of Open Access Journals (Sweden)

    Renato Bernardi

    2015-09-01

    Full Text Available The article makes an assessment of the distinction between the sexes and the preponderance of the male role in the labor market throughout history. It analyzes the existing legal framework before the promulgation of the Constitution of 1988 and after editing the adoption of measures coibitivas to gender discrimination, specifically on discrimination against women in the workplace. Seeking to understand the various forms of discrimination and analyzes equality to be achieved today. representative numbers of labor market behavior for women in IBGE statistics are presented. These data serve to corroborate the existence of the phenomenon of the "glass ceiling", ie the imaginary line that prevents the rise of women to senior positions, and economically hierarchical command positions. The conclusion, finally, the need to break these limits by adopting measures that restrict employers to keep promotions designed to gender criteria.

  11. Experimental study of discharging PCM ceiling panels through nocturnal radiative cooling

    DEFF Research Database (Denmark)

    Bourdakis, Eleftherios; Péan, Thibault Q.; Gennari, Luca

    2016-01-01

    PhotoVoltaic/Thermal (PV/T) panels were used for cooling water through the principle of nocturnal radiative cooling. This water was utilised for discharging Phase Change Material (PCM) which was embedded in ceiling panels in a climate chamber. Three different sets of flow rates were examined...... for the solar and the PCM loops, for five days each. The highest examined water flow rate (210 l/h) in the PCM loop provided the best thermal environment in the climate chamber, namely 92% of the occupancy time was within the range of Category III of Standard EN 15251. Although the lowest examined water flow...... rate (96 l/h) in the solar loop provided the highest average cooling power, due to the significant variations in the weather conditions during the three experimental cases, made it impossible to determine to which extent the difference in the cooling power is due to the different water flow rate...

  12. Exergy characteristics of a ceiling-type residential air conditioning system operating under different climatic conditions

    Energy Technology Data Exchange (ETDEWEB)

    Ozbek, Arif [Dept. of Mechanical Engineering, Ceyhan Engineering Faculty, Cukurova University, Adana (Turkmenistan)

    2016-11-15

    In this study an energy and exergy analysis of a Ceiling-type residential air conditioning (CTRAC) system operating under different climatic conditions have been investigated for provinces within the different geographic regions of Turkey. Primarily, the hourly cooling load capacities of a sample building (Q{sub evap}) during the months of April, May, June, July, August and September were determined. The hourly total heat gain of the sample building was determined using the Hourly analysis program (HAP). The Coefficient of performance (COP), exergy efficiency (η) and exergy destruction (Ex{sub dest}) values for the whole system and for each component were obtained. The results showed that lower atmospheric temperature (T{sub atm}) influenced the performance of the system and each of its components.

  13. Technology Solutions Case Study: Raised Ceiling Interior Duct System, New Smyrna, Florida

    Energy Technology Data Exchange (ETDEWEB)

    None

    2014-09-01

    Builder S.E. Volusia County Habitat for Humanity (SEVHFH) was interested in constructing a home to the new U.S. Department of Energy (DOE) Zero Energy Ready Home standards. SEVHFH partners with DOE team Building America Partnership for Improved Residential Construction on Habitat for Humanity homes and routinely builds to ENERGY STAR V3.1. The only modification to the design needed to comply with the Zero Energy Ready Home criteria was the interior duct requirement. Unwilling to incur the added costs of a foam roof deck or wall heights that exceed 8 ft to accommodate a fur-down chase, SEVHFH opted to build a fur-up or raised ceiling chase. This case study describes the project.

  14. Sealing, especially of dropped ceiling of cubide where main circulating pump of nuclear reactor is installed

    International Nuclear Information System (INIS)

    Paucek, V.

    1980-01-01

    The sealing of the dropped ceiling of the cubicle for main circulating pump installation consists of a reinforcing ring in the space of the pump installation and the top annulus of biological shielding whose inner diameter is smaller than the outer diameter of the bottom biological shielding annulus mounted onto the pump body. The sealing comprises a vertically slidable support ring provided on its underside with an outer ring insert and an outer splice bar for functional gap formation. Slidably mounted in the gap is a guide annular plate tightly attached by means of an inner splice bar and bolts to the bottom biological shielding annulus. Spacers are provided between the reinforcing ring underside and the support ring top surface. (B.S.)

  15. Complete Model-Based Equivalence Class Testing for the ETCS Ceiling Speed Monitor

    DEFF Research Database (Denmark)

    Braunstein, Cécile; Haxthausen, Anne Elisabeth; Huang, Wen-ling

    2014-01-01

    In this paper we present a new test model written in SysML and an associated blackbox test suite for the Ceiling Speed Monitor (CSM) of the European Train Control System (ETCS). The model is publicly available and intended to serve as a novel benchmark for investigating new testing theories...... and comparing the capabilities of modelbased test automation tools. The CSM application inputs velocity values from a domain which could not be completely enumerated for test purposes with reasonable e_ort. We therefore apply a novel method for equivalence class testing that { despite the conceptually in......_nite cardinality of the input domains { is capable to produce _nite test suites that are complete (i.e. sound and exhaustive) for a given fault model. In this paper, an overview of the model and the equivalence class testing strategy is given, and tool-based evaluation results are presented. For the technical...

  16. The hidden symbols of the female anatomy in Michelangelo Buonarroti's ceiling in the Sistine Chapel.

    Science.gov (United States)

    de Campos, Deivis; Malysz, Tais; Bonatto-Costa, João Antonio; Jotz, Geraldo Pereira; de Oliveira Junior, Lino Pinto; Wichmann, Jéssica Francine; Goulart, Guilherme Reghelin; Stefani, Marco Antonio; da Rocha, Andrea Oxley

    2016-10-01

    A number of published articles have suggested that each element of Renaissance art contains an inner meaning. Some of these elements include the choice of theme and protagonists, faces selected for the characters, colors used, species of flowers and trees chosen, animals depicted, positions of the elements, posture of the characters and their gestures, juxtapositions in the scenes, and even the very scenario or landscape. All of these elements are thought to have hidden meanings. In this context, this manuscript presents a new hypothesis suggesting that Michelangelo Buonarroti (1475-1564) may have concealed symbols associated with female anatomy in the ceiling of the Sistine Chapel (painted 1508-1512) in Rome. Thus, this paper is useful to better understand the history of anatomy and corroborates recent descriptions that have suggested the possible existence of anatomic figures concealed in many of Michelangelo's works. Clin. Anat. 29:911-916, 2016. © 2016 Wiley Periodicals, Inc. © 2016 Wiley Periodicals, Inc.

  17. Convective Heat Transfer Coefficients of the Human Body under Forced Convection from Ceiling

    DEFF Research Database (Denmark)

    Kurazumi, Yoshihito; Rezgals, Lauris; Melikov, Arsen Krikor

    2014-01-01

    The average convective heat transfer coefficient for a seated human body exposed to downward flow from above was determined. Thermal manikin with complex body shape and size of an average Scandinavian female was used. The surface temperature distribution of the manikin’s body was as the skin...... temperature distribution of an average person. The measurements were performed in a room with controlled thermal environment. Air temperature was set at 26ºC for cooling and at 20ºC for heating. The radiant temperature asymmetry in horizontal and vertical direction was close to zero, i.e. mean radiant...... temperature was equal to the air temperature. The air velocity of the isothermal downward flow from the ceiling at height of 1.5 m above the floor (above the top of the head) was set in a range between still air and 0.73 m/s. Based on the analyses of the results relationships for determination...

  18. De Soweto à Ceilândia: siglas de segregação racial

    Directory of Open Access Journals (Sweden)

    Guilherme Oliveira Lemos

    2017-08-01

    Full Text Available A proposta desse trabalho é pensar relações comuns ou, pelo menos, aproximadas sobre os processos e os instrumentos de segregação urbana racial, generificada e social nas cidades de Soweto (Joanesburgo - África do Sul e Ceilândia (Distrito Federal - Brasil durante as décadas de 1950 e 1970. Para tanto, comparamos os dois processos de remoção das populações dos centros para as periferias e a (reinvenção dos tipos corpóreos (“candango”, “black”, “african”, “coloured” destinados a ocupar os limites da não-vida, ou seja, as  chamadas cidades satélites. Metodologicamente a pesquisa, de caráter inicial, fez-se através da análise indiciaria e comparativa de documentos oficiais, relatos orais e bibliografias referentes às duas cidades. A aproximação analítica/histórica entre esses casos se tornou possível através do conceito de necropolítica e da correlação entre escravidão, colonialismo e apartheid: três eventos imaginados historiograficamente como distintos, mas onde a dissociação do ser ao direito de sua própria vida rompem as barreiras do tempo e, no caso Soweto-Ceilândia, as fronteiras do Atlântico.

  19. Academe's Glass Ceiling: Societal, Professional-Organizational, and Institutional Barriers to the Career Advancement of Academic Women.

    Science.gov (United States)

    Bain, Olga; Cummings, William

    2000-01-01

    A survey of 10 national systems of higher education found that less than 10 percent of professors were women, and the proportion of female professors was negatively related to institutional prestige. This academic "glass ceiling" was related to women's shorter careers, tenure issues during hard times, and women's lower level of academic…

  20. The Time Bounded Glass Ceiling and Young Women Managers: Career Progress and Career Success--Evidence from the UK.

    Science.gov (United States)

    Simpson, Ruth; Altman, Yochanan

    2000-01-01

    A study of 130 male and 91 female managers found that more younger women than men were in senior roles. Younger women achieved seniority faster than women over 35. However, once younger women have broken the glass ceiling at lower levels, they encounter new barriers at higher levels. (SK)

  1. Simulation Study of Performance of Active Ceilings with Phase Change Material in Office Buildings under Extreme Climate Conditions

    DEFF Research Database (Denmark)

    Stefansen, Casper; Farhan, Hajan; Bourdakis, Eleftherios

    2018-01-01

    This study examined the performance of Phase Change Material (PCM) in active ceiling panels under extreme climate conditions. The purpose was to reduce the annual energy use and still maintain an indoor climate corresponding to Category II in the European Standard, EN15251. Dynamic yearly...

  2. Simulation Study of Active Ceilings with Phase Change Material in Office Buildings for Different National Building Regulations

    DEFF Research Database (Denmark)

    Farhan, Hajan; Stefansen, Casper; Bourdakis, Eleftherios

    2018-01-01

    The aim of this study was to examine the performance of phase change material (PCM) in active ceilings for an office room under different Danish building regulations for both heating and cooling purposes. A model of a two-person office room was simulated with the only heating and cooling source...

  3. Experimental study on the dynamic performance of a novel system combining natural ventilation with diffuse ceiling inlet and TABS

    DEFF Research Database (Denmark)

    Yu, Tao; Heiselberg, Per Kvols; Lei, Bo

    2016-01-01

    Highlights • Dynamic experiments are performed to study energy performance of a new HVAC system. • Designed control strategies show good utilization of natural ventilation cooling. • TABS work well with the diffuse ceiling in the dynamic measurements. • No local thermal comfort problem is found...

  4. Ceiling erosion in caves: early studies and Zdeněk Roth as author of the concept

    Czech Academy of Sciences Publication Activity Database

    Bella, P.; Bosák, Pavel

    2015-01-01

    Roč. 44, č. 1 (2015), s. 139-144 ISSN 0583-6050 Institutional support: RVO:67985831 Keywords : ceiling channel * paragenesis * antigravitative erosion * definition * Zdeněk Roth * Domica Cave * Slovak Karst Subject RIV: DB - Geology ; Mineralogy Impact factor: 0.792, year: 2015

  5. A Decision-Making Model for Analysing How the Glass Ceiling Is Maintained: Unblocking Equal Promotion Opportunities.

    Science.gov (United States)

    Large, Martin; Saunders, Mark N. K.

    1995-01-01

    Widespread structural gender inequality and job segregation still exist. The glass ceiling is maintained by a combination of both organizational barriers and individual choices. Individual decisions about working toward promotion are colored by their perceptions of the value of the rewards and the climate of the organization. (SK)

  6. Effects of Glass Ceiling on Women Career Development in Private Sector Organizations – Case of Sri Lanka

    Directory of Open Access Journals (Sweden)

    Bombuwela P. M.

    2013-06-01

    Full Text Available The study was entirely designed by centering the focal problem of the effect of Glass Ceiling on Women Career Development. The overall study was structure based on the conceptual framework built up using the information of literature survey. The study was conducted with the aim of obtaining the following objective. That is “To find out the Effect of Glass Ceiling on Women Career Development with regard to female executive level employees who are working in privatesector organizations.” At the same time, hypotheses are developed to find out whether there is a significant effect of Individual Factors, Family Factors, Organizational Factors and Cultural Factors on Women Career development. Merely this study has been completed with an empirical survey which was thoroughly conducted using a self-administered questionnaire and the sample consisted of 150 women executives. For presenting and analyzing the data both descriptive andinferential statistics were used. The findings reveal that the Glass Ceiling and Women Career Development have a moderate negative relationship, and also show that Individual Factors, OrganizationalFactors and Cultural Factors have a significant effect on Women Career Development whereas Family Factor has effects on the Glass Ceiling. Following the study results, a conclusion was eventually made that there are significant effects of the Glass Ceiling on WomenCareer Development of Executive level female employees working in private sector organizations in Sri Lanka. By taking all these facts into consideration, better recommendations have been made in this study. Finally, the most valuable suggestions for further studies and limitations of the study have been outlined.

  7. Historical, analytic-diagnostic and environmental study of the wood ceilings covered in painted paper in “Casa Romei” (Ferrara: Room of the 1500s

    Directory of Open Access Journals (Sweden)

    Salvatore Lorusso

    2003-02-01

    Full Text Available This study aims at the evaluation of the conservation state of painted paper ceilings in the museum of Casa Romei (Ferrara. These ceilings are very important as rare witnesses of the art in Ferrara in 1400 to simulate wooden ceilings through painted paper. The overall project, proposed for the study of both the manufacture techniques and the state of conservation, is divided into two stages relative to the knowledge of the materials and the conservation environment. The study involves the artefacts control (diagnostic, materials and products characterisation through biological and chemical analyses and microclimate monitoring.

  8. Exergy analysis in a space with ceiling shield; Analisis exegetico en un espacio con techo escudo

    Energy Technology Data Exchange (ETDEWEB)

    Laboratorio de Energia Solar, Universidad Nacional Autonoma de Mexico (Mexico)

    2009-07-15

    The Solar Laboratory of Energy (LES) of the Universidad Nacional Autonoma de Mexico (UNAM) was designed to be comfortable in spite of the extreme climate where it was built. One of the novel characteristics was the shield type ceiling used in cubicles. In order to compare the effect that had had with respect to the environmental conditions, one had to resort to an exergy analysis, since exergy is a measurement of the capacity of the energy to carry out a work. As a first system the data of the national meteorological system as initial conditions were used. The comparative system used as initial conditions the temperature and relative humidity measurements obtained in 1992 in a cubicle of the LES. Both systems were taken as open. The final conditions were settled at 25 Celsius degrees and 50% of relative humidity in a first case and variables (with respect to the perimeter a comfort zone) in a second case. The saving obtained was of 69% and 33% respectively. Although it is not possible to determine what percentage corresponds to the exclusive saving of the ceiling shield, we see that the cover all altogether, presents a significant exergy saving in respect to modifying the environmental conditions directly. [Spanish] El Laboratorio de Energia Solar (LES) de la Universidad Nacional Autonoma de Mexico (UNAM) fue disenado para ser confortable a pesar del clima extremoso donde fue construido. Una de las caracteristicas novedosas fue el uso de techo tipo escudo en cubiculo. Para comparar el efecto que se tuvo respecto a las condiciones ambientales, se recurrio a un analisis exergetico, ya que la exergia es una medida de la capacidad de la energia para realizar un trabajo. Como un primer sistema se utilizaron los datos del sistema meteorologico nacional como condiciones iniciales. El sistema comparativo utilizo como condiciones iniciales las mediciones de temperatura y humedad relativas obtenidas en 1992 en un cubiculo del LES. Ambos sistemas fueron tomados como abiertos

  9. Pride and prejudice beyond the glass ceiling: Brazilian female executives´ psychological type

    Directory of Open Access Journals (Sweden)

    Betania Tanure

    2014-08-01

    Full Text Available http://dx.doi.org/10.5007/2175-8077.2014v16n39p210 This paper intends to relate characteristics of female executive psychological type with their male colleagues in corporations operating in Brazil (CEOs, VPs/directors and top managers. The theoretical framework explores the glass ceiling and the prejudices faced by female executives. It was developed a mixed qualitative-quantitative method. In the quantitative part we interviewed 743 men and 222 women from 344 corporations. We applied also the questionnaire MBTI to 430 of these executives. In the qualitative part we held focus groups with 227 individuals and 104 semi-structured interviews. The most active psychological MBTI type found was the ESTJ, both to men and women. The dominant characteristics in this type is more rational, logical and less emotional. Prejudices are huge: women need to work harder to show that they are as competent as men. They also live the society's pressure in relation to the roles as mother and wife.

  10. Advanced care planning: the impact of Ceiling of Treatment plans in patients with Coordinate My Care.

    Science.gov (United States)

    Broadhurst, Helen Lucy; Droney, Joanne; Callender, Tom; Shaw, Amanda; Riley, Julia

    2018-03-22

    The aim of this evaluation is to describe the components and results of urgent care planning in Coordinate My Care (CMC), a digital clinical service for patients with life-limiting illness, for use if a patient is unable to make or express choices. Ceiling of treatment (CoT) plans were created detailing where the patient would like to receive their care and how aggressive medical interventions should be. A retrospective service evaluation was completed of all CMC records created between December 2015 and September 2016 (n=6854). CMC records were divided into two cohorts: those with a CoT plan and those without. The factors associated with these cohorts were reviewed including age, diagnosis, resuscitation status and preferences for place of death (PPD). Analysis of the non-mandatory free text section was carried out. Two-thirds of patients had recorded decisions about CoT. Regardless of which CoT option was chosen, for most patients, PPD was home or care home. Patients with a CoT plan were more likely to have a documented resuscitation status.Patients with a CoT were more likely to die in their PPD (82%vs71%, OR 1.79, pcare planning. Three facets of urgent care planning identified include PPD, CoT and resuscitation status. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  11. Breaking through the glass ceiling: women in executive leadership positions--Part I.

    Science.gov (United States)

    Parsons, Lynn C; Reiss, Patricia L

    2004-01-01

    Women have had their share of difficulties climbing the corporate ladder in their chosen professional roles. Excellent role models exist for nurses to look up to as role models for leadership and executive level positions. Nurses and women must strive to achieve their goals of attaining executive/management level positions in their respective organizations. The glass ceiling still exists; however, women are slowly eroding that glass barrier and reaching their professional goals. In reviewing the struggles that men in nursing have encountered in a predominantly female profession, one realizes that stereotypical attitudes do cross gender lines. The authors conclude that executive level positions need to be opened more to women, just as the nursing profession must be more welcoming to men. The profession of nursing will only become stronger with gender diversity. Women encounter barriers when aspiring to executive level positions. In the next issue of SCI Nursing, the authors will report on what the evidence says about women in leadership roles, and the challenges they have and will continue to face.

  12. Women in hospital medicine in the United Kingdom: glass ceiling, preference, prejudice or cohort effect?

    Science.gov (United States)

    McManus, I C; Sproston, K A

    2000-01-01

    To assess from official statistics whether there is evidence that the careers of women doctors in hospitals do not progress in the same way as those of men. The proportions of female hospital doctors overall (1963-96), and in the specialties of medicine, surgery, obstetrics and gynaecology, pathology, radiology/radiotherapy, anaesthetics and psychiatry (1974-1996) were examined. Additionally data were examined on career preferences and intentions from pre-registration house officers, final year medical students, and medical school applicants (1966-1991). Data were analysed according to cohort of entry to medical school to assess the extent of disproportionate promotion. The proportion of women in hospital career posts was largely explained by the rapidly increasing proportion of women entering medical school during the past three decades. In general there was little evidence for disproportionate promotion of women in hospital careers, although in surgery, hospital medicine and obstetrics and gynaecology, fewer women seemed to progress beyond the SHO grade, and in anaesthetics there were deficits of women at each career stage. Analyses of career preferences and intentions suggest that disproportionate promotion cannot readily be explained as differential choice by women. Although there is no evidence as such of a "glass ceiling" for women doctors in hospital careers, and the current paucity of women consultants primarily reflects historical trends in the numbers of women entering medical school, there is evidence in some cases of disproportionate promotion that is best interpreted as direct or indirect discrimination.

  13. Women's Health and Women's Leadership in Academic Medicine: Hitting the Same Glass Ceiling?

    Science.gov (United States)

    Morrissey, Claudia; Geller, Stacie E.

    2008-01-01

    Abstract The term “glass ceiling” refers to women's lack of advancement into leadership positions despite no visible barriers. The term has been applied to academic medicine for over a decade but has not previously been applied to the advancement of women's health. This paper discusses (1) the historical linking of the advances in women's health with women's leadership in academic medicine, (2) the slow progress of women into leadership in academic medicine, and (3) indicators that the advancement of women's health has stalled. We make the case that deeply embedded unconscious gender-based biases and assumptions underpin the stalled advancement of women on both fronts. We conclude with recommendations to promote progress beyond the apparent glass ceiling that is preventing further advancement of women's health and women leaders. We emphasize the need to move beyond “fixing the women” to a systemic, institutional approach that acknowledges and addresses the impact of unconscious, gender-linked biases that devalue and marginalize women and issues associated with women, such as their health. PMID:18954235

  14. Privacy-Preserved Behavior Analysis and Fall Detection by an Infrared Ceiling Sensor Network

    Directory of Open Access Journals (Sweden)

    Mineichi Kudo

    2012-12-01

    Full Text Available An infrared ceiling sensor network system is reported in this study to realize behavior analysis and fall detection of a single person in the home environment. The sensors output multiple binary sequences from which we know the existence/non-existence of persons under the sensors. The short duration averages of the binary responses are shown to be able to be regarded as pixel values of a top-view camera, but more advantageous in the sense of preserving privacy. Using the “pixel values” as features, support vector machine classifiers succeeded in recognizing eight activities (walking, reading, etc. performed by five subjects at an average recognition rate of 80.65%. In addition, we proposed a martingale framework for detecting falls in this system. The experimental results showed that we attained the best performance of 95.14% (F1 value, the FAR of 7.5% and the FRR of 2.0%. This accuracy is not sufficient in general but surprisingly high with such low-level information. In summary, it is shown that this system has the potential to be used in the home environment to provide personalized services and to detect abnormalities of elders who live alone.

  15. Kinetic and equilibrium studies of cesium adsorption on ceiling tiles from aqueous solutions.

    Science.gov (United States)

    Miah, Muhammed Yusuf; Volchek, Konstantin; Kuang, Wenxing; Tezel, F Handan

    2010-11-15

    A series of experiments were performed to quantify the adsorption of cesium on ceiling tiles as a representative of urban construction materials. Adsorption was carried out from solutions to mimic wet environmental conditions. Non-radioactive cesium chloride was used as a surrogate of the radioactive (137)Cs. The experiments were performed in the range of initial cesium concentrations of 0.114-23.9 mg L(-1) at room temperature (21°C) around three weeks. Solution samples were taken after set periods of time and analyzed by inductively coupled plasma mass spectrometry (ICP-MS). The quantity of adsorbed Cs was calculated by mass balance as a function of time. Two kinetic and three equilibrium models were employed to interpret the test results. Determination of kinetic parameters for adsorption was carried out using the first-order reaction model and the intra-particle diffusion model. Adsorption equilibrium was studied using Langmuir, Freundlich and three-parameter Langmuir-Freundlich adsorption isotherm models. A satisfactory correlation between the experimental and the predicted values was observed. Crown Copyright © 2010. Published by Elsevier B.V. All rights reserved.

  16. Kinetic and equilibrium studies of cesium adsorption on ceiling tiles from aqueous solutions

    Energy Technology Data Exchange (ETDEWEB)

    Miah, Muhammed Yusuf [Emergencies Science and Technology Section, Environment Canada, 335 River Road, Ottawa, Ontario, K1A 0H3 (Canada); Department of Applied Chemistry and Chemical Technology, Noakhali Science and Technology University (Bangladesh); Volchek, Konstantin, E-mail: Konstantin.Volchek@ec.gc.ca [Emergencies Science and Technology Section, Environment Canada, 335 River Road, Ottawa, Ontario, K1A 0H3 (Canada); Kuang, Wenxing [SAIC Canada, 335 River Road, Ottawa, Ontario, K1A 0H3 (Canada); Tezel, F. Handan [Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis-Pasteur, Ottawa, Ontario, K1N 6N5 (Canada)

    2010-11-15

    A series of experiments were performed to quantify the adsorption of cesium on ceiling tiles as a representative of urban construction materials. Adsorption was carried out from solutions to mimic wet environmental conditions. Non-radioactive cesium chloride was used as a surrogate of the radioactive {sup 137}Cs. The experiments were performed in the range of initial cesium concentrations of 0.114-23.9 mg L{sup -1} at room temperature (21 deg. C) around three weeks. Solution samples were taken after set periods of time and analyzed by inductively coupled plasma mass spectrometry (ICP-MS). The quantity of adsorbed Cs was calculated by mass balance as a function of time. Two kinetic and three equilibrium models were employed to interpret the test results. Determination of kinetic parameters for adsorption was carried out using the first-order reaction model and the intra-particle diffusion model. Adsorption equilibrium was studied using Langmuir, Freundlich and three-parameter Langmuir-Freundlich adsorption isotherm models. A satisfactory correlation between the experimental and the predicted values was observed.

  17. Transient and Steady State Phenomena of Opposing Buoyant Jets in a Ceiling Vented Room

    Science.gov (United States)

    Landreth, Glen; Caulfield, C. P.

    2001-11-01

    A ceiling vented room with opposing sources of fluid of different densities is considered. Analytical steady state solutions are found from conservation principles, and are considered for varied source velocities, volume fluxes and densities. Ultimately, a two-layer density profile is predicted to develop, and solutions are found to be independent of initial ambient density within the room. Transient effects are considered by numerically solving the governing equations for the plumes in an evolving, ventilated room. Source velocities, volume fluxes and densities are again significant, as is initial ambient density in the transient behavior of the room ambient density. Phenomena such as plume collapse and mixing driven by static instability are predicted in specific cases, and the numerical and analytical solutions are found to agree in steady state. Experimental verifications, using analogue salt bath laboratory experiments have been performed for both steady state and time dependent phenomena. Conclusions including the applicability to hybrid or mixed-mode ventilation of real buildings will be discussed.

  18. Thou shalt not pass?: Examining the existence of an immigrant glass ceiling in Sweden, 1970-1990

    Directory of Open Access Journals (Sweden)

    Jonas Helgertz

    2011-01-01

    Full Text Available The paper studies a sample of natives and 18 immigrant nationalities in the Swedish labor market between 1970 and 1990. The purpose is examining the existence of an immigrant specific glass ceiling. Results suggest a considerable overall advantage in terms of the probability of experiencing upward occupational mobility for native Swedish males. Despite this, the pattern does not correspond to the theoretical expectations of a glass ceiling. Using the ISEI classification of occupational status, the advantage experienced by Swedish males is consistent in the private manufacturing and private service sectors, compared to the experience of immigrants and women. The public sector generally suggests a similar pattern according to linguistic background. In this sector, certain groups of women are, however, observed to experience an advantage from low occupational status origins.

  19. Performance of personalized ventilation combined with chilled ceiling in an office room: inhaled air quality and contaminant distribution

    DEFF Research Database (Denmark)

    Lipczynska, Aleksandra; Kaczmarczyk, Jan; Melikov, Arsen Krikor

    2014-01-01

    . Breathing thermal manikins were used to resemble two occupants at workstations. Room air temperature was kept at 26ºC and 28°C. Personalized ventilation supplied air at 25°C. Supplied total flow rate ranged from 26 to 82 L/s. Heat gains of 66-72 W/m2 were simulated. Tracer gases simulated pollution from...... people (exhaled air, bioeffluents) and building materials (wall painting). Personalized ventilation combined with chilled ceiling ensured highest air quality at the workstation under all conditions. Pollutant concentration in the occupied zone away from the workstations did not differ substantially...... between the tested systems. Chilled ceiling combined with personalized ventilation working as the only air supplying system may be optimal solution in many buildings....

  20. Feiras como espaços de hospitalidade e identidade coletiva : Feira permanente da Ceilândia/DF

    OpenAIRE

    Leite, Daniela Carvalho Bezerra Leite

    2015-01-01

    Esta dissertação trata das feiras como espaços de hospitalidade e identidade coletiva. O objetivo é analisar os processos de hospitalidade, comensalidade e convivência que ocorrem na feira Permanente da Ceilândia/DF. A investigação se desenvolve utilizando o método qualitativo de caráter exploratório/explicativo. O método de investigação da pesquisa foi o estudo de caso – Feira Permanente da Ceilândia/DF por meio da observação participante, entrevista e imagens fotográficas que serviram para ...

  1. Development and evaluation of a ceiling ventilation system enhanced by solar photovoltaic thermal collectors and phase change materials

    International Nuclear Information System (INIS)

    Lin, Wenye; Ma, Zhenjun; Sohel, M. Imroz; Cooper, Paul

    2014-01-01

    Highlights: • A novel ceiling ventilation system enhanced by PVT and PCMs was proposed. • PCM was used to increase the local thermal mass and to serve as a storage unit. • The proposed system can enhance indoor thermal comfort in winter and summer. - Abstract: This paper presents the development and performance evaluation of a novel ceiling ventilation system integrated with solar photovoltaic thermal (PVT) collectors and phase change materials (PCMs). The PVT collectors are used to generate electricity and provide low grade heating and cooling energy for buildings by using winter daytime solar radiation and summer night-time sky radiative cooling, respectively. The PCM is integrated into the building ceiling as a part of the ceiling insulation and at the same time, as a centralized thermal energy storage to temporally store low grade energy collected from the PVT collectors. The performance of the proposed system was numerically evaluated based on a Solar Decathlon house using TRNSYS. The results showed that, in winter conditions, the proposed PVT–PCM integrated ventilation system can significantly improve the indoor thermal comfort of passive buildings without using air-conditioning systems with a maximum air temperature rise of 23.1 °C from the PVT collectors. Compared with the system using PCM but without using PVT collectors, the coefficient of thermal comfort enhancement in the kitchen, dining room and living room of the case building studied using the proposed system improved from almost zero to 0.9823 while the coefficient of thermal comfort enhancement in the study room improved from 0.0060 to 0.9921. In summer conditions, the proposed system can also enhance indoor thermal comfort through night-time sky radiative cooling

  2. Ultraviolet spectral reflectance of ceiling tiles, and implications for the safe use of upper-room ultraviolet germicidal irradiation.

    Science.gov (United States)

    Wengraitis, Stephen; Reed, Nicholas G

    2012-01-01

    Ultraviolet germicidal irradiation can be used to prevent airborne transmission of infectious diseases. A common application is to irradiate upper-room areas, by passing air from the lower room into the irradiated zone. Well-designed systems do not expose people directly; however, some UV radiation may be reflected off ceiling tiles and wall paints into the lower room. Lower room exposure should be limited to the American Conference of Governmental Industrial Hygienists threshold limit value of 6 mJ·cm(-2) of 254 nm radiation per day. To limit the lower room exposure, the reflectance of upper-room surfaces must not be high. The reflective properties of wall paints have been studied, but less is known about the UV reflectance of ceiling tiles. Using a double monochromator spectroradiometer and an integrating sphere reflectance attachment, the UV spectral reflectance of 37 ceiling tiles was measured from 200 to 400 nm. The reflectances varied from 0.020 to 0.822 in this range, and from 0.035 to 0.459 at 254 nm, the main wavelength emitted by upper room low-pressure mercury germicidal lamps. These data were then used to estimate an 8 h exposure based on several simplified workplace scenarios. The implications for workplace safety are then discussed. © 2012 Wiley Periodicals, Inc. Photochemistry and Photobiology © 2012 The American Society of Photobiology.

  3. 26 CFR 1.103(n)-7T - Election to allocate State ceiling to certain facilities for local furnishing of electricity...

    Science.gov (United States)

    2010-04-01

    ... facilities for local furnishing of electricity (temporary). 1.103(n)-7T Section 1.103(n)-7T Internal Revenue... (CONTINUED) Items Specifically Excluded from Gross Income § 1.103(n)-7T Election to allocate State ceiling to... amount that would have been New York's State ceiling (as defined in section 103(n)(4) and A-1 of § 1.103...

  4. Building an Enhanced Vocabulary of the Robot Environment with a Ceiling Pointing Camera

    Science.gov (United States)

    Rituerto, Alejandro; Andreasson, Henrik; Murillo, Ana C.; Lilienthal, Achim; Guerrero, José Jesús

    2016-01-01

    Mobile robots are of great help for automatic monitoring tasks in different environments. One of the first tasks that needs to be addressed when creating these kinds of robotic systems is modeling the robot environment. This work proposes a pipeline to build an enhanced visual model of a robot environment indoors. Vision based recognition approaches frequently use quantized feature spaces, commonly known as Bag of Words (BoW) or vocabulary representations. A drawback using standard BoW approaches is that semantic information is not considered as a criteria to create the visual words. To solve this challenging task, this paper studies how to leverage the standard vocabulary construction process to obtain a more meaningful visual vocabulary of the robot work environment using image sequences. We take advantage of spatio-temporal constraints and prior knowledge about the position of the camera. The key contribution of our work is the definition of a new pipeline to create a model of the environment. This pipeline incorporates (1) tracking information to the process of vocabulary construction and (2) geometric cues to the appearance descriptors. Motivated by long term robotic applications, such as the aforementioned monitoring tasks, we focus on a configuration where the robot camera points to the ceiling, which captures more stable regions of the environment. The experimental validation shows how our vocabulary models the environment in more detail than standard vocabulary approaches, without loss of recognition performance. We show different robotic tasks that could benefit of the use of our visual vocabulary approach, such as place recognition or object discovery. For this validation, we use our publicly available data-set. PMID:27070607

  5. In search of the glass ceiling: gender and recruitment to management in Norway's state bureaucracy.

    Science.gov (United States)

    Storvik, Aagoth Elise; Schøne, Pål

    2008-12-01

    There are still fewer female than male managers in Norway's state bureaucracy. This article asks if there are organizational barriers which prevent women from entering these positions. Is there really a glass ceiling, or must one look outside the organizational environment to find an explanation? Is it rather the case that the scarcity of female managers is caused by women's own preferences or their life situations outside work? Or do both contribute to the situation? The study shows that female managers are treated just as well as male managers in central parts of the state bureaucracy. Employers give equal shares of respect and attention to both genders. Female managers are encouraged to apply for the same number of jobs as men and are offered an equal number of jobs as men when they apply; in fact, women are offered more jobs than men, when one controls for the number of job applications. This indicates that organizational barriers are not the problem. The study also shows that there are no differences in work orientation between male and female managers. Female managers are just as ambitious as male managers. Nor do female managers find it more difficult than male managers to combine work and family life. So, how can one explain the low number of female managers? The study shows that one reason can be that female managers apply for management jobs less often than their male colleagues. The cause of this seems to be anticipated discrimination rather than lack of ambition or self-confidence. However, this slows down women's movement into higher management positions in the state bureaucracy.

  6. Building an Enhanced Vocabulary of the Robot Environment with a Ceiling Pointing Camera

    Directory of Open Access Journals (Sweden)

    Alejandro Rituerto

    2016-04-01

    Full Text Available Mobile robots are of great help for automatic monitoring tasks in different environments. One of the first tasks that needs to be addressed when creating these kinds of robotic systems is modeling the robot environment. This work proposes a pipeline to build an enhanced visual model of a robot environment indoors. Vision based recognition approaches frequently use quantized feature spaces, commonly known as Bag of Words (BoW or vocabulary representations. A drawback using standard BoW approaches is that semantic information is not considered as a criteria to create the visual words. To solve this challenging task, this paper studies how to leverage the standard vocabulary construction process to obtain a more meaningful visual vocabulary of the robot work environment using image sequences. We take advantage of spatio-temporal constraints and prior knowledge about the position of the camera. The key contribution of our work is the definition of a new pipeline to create a model of the environment. This pipeline incorporates (1 tracking information to the process of vocabulary construction and (2 geometric cues to the appearance descriptors. Motivated by long term robotic applications, such as the aforementioned monitoring tasks, we focus on a configuration where the robot camera points to the ceiling, which captures more stable regions of the environment. The experimental validation shows how our vocabulary models the environment in more detail than standard vocabulary approaches, without loss of recognition performance. We show different robotic tasks that could benefit of the use of our visual vocabulary approach, such as place recognition or object discovery. For this validation, we use our publicly available data-set.

  7. Building an Enhanced Vocabulary of the Robot Environment with a Ceiling Pointing Camera.

    Science.gov (United States)

    Rituerto, Alejandro; Andreasson, Henrik; Murillo, Ana C; Lilienthal, Achim; Guerrero, José Jesús

    2016-04-07

    Mobile robots are of great help for automatic monitoring tasks in different environments. One of the first tasks that needs to be addressed when creating these kinds of robotic systems is modeling the robot environment. This work proposes a pipeline to build an enhanced visual model of a robot environment indoors. Vision based recognition approaches frequently use quantized feature spaces, commonly known as Bag of Words (BoW) or vocabulary representations. A drawback using standard BoW approaches is that semantic information is not considered as a criteria to create the visual words. To solve this challenging task, this paper studies how to leverage the standard vocabulary construction process to obtain a more meaningful visual vocabulary of the robot work environment using image sequences. We take advantage of spatio-temporal constraints and prior knowledge about the position of the camera. The key contribution of our work is the definition of a new pipeline to create a model of the environment. This pipeline incorporates (1) tracking information to the process of vocabulary construction and (2) geometric cues to the appearance descriptors. Motivated by long term robotic applications, such as the aforementioned monitoring tasks, we focus on a configuration where the robot camera points to the ceiling, which captures more stable regions of the environment. The experimental validation shows how our vocabulary models the environment in more detail than standard vocabulary approaches, without loss of recognition performance. We show different robotic tasks that could benefit of the use of our visual vocabulary approach, such as place recognition or object discovery. For this validation, we use our publicly available data-set.

  8. A Bayesian Model and Stochastic Exposure (Dose) Estimation for Relative Exposure Risk Comparison Involving Asbestos-Containing Dropped Ceiling Panel Installation and Maintenance Tasks.

    Science.gov (United States)

    Boelter, Fred W; Xia, Yulin; Persky, Jacob D

    2017-09-01

    Assessing exposures to hazards in order to characterize risk is at the core of occupational hygiene. Our study examined dropped ceiling systems commonly used in schools and commercial buildings and lay-in ceiling panels that may have contained asbestos prior to the mid to late 1970s. However, most ceiling panels and tiles do not contain asbestos. Since asbestos risk relates to dose, we estimated the distribution of eight-hour TWA concentrations and one-year exposures (a one-year dose equivalent) to asbestos fibers (asbestos f/cc-years) for five groups of workers who may encounter dropped ceilings: specialists, generalists, maintenance workers, nonprofessional do-it-yourself (DIY) persons, and other tradespersons who are bystanders to ceiling work. Concentration data (asbestos f/cc) were obtained through two exposure assessment studies in the field and one chamber study. Bayesian and stochastic models were applied to estimate distributions of eight-hour TWAs and annual exposures (dose). The eight-hour TWAs for all work categories were below current and historic occupational exposure limits (OELs). Exposures to asbestos fibers from dropped ceiling work would be categorized as "highly controlled" for maintenance workers and "well controlled" for remaining work categories, according to the American Industrial Hygiene Association exposure control rating system. Annual exposures (dose) were found to be greatest for specialists, followed by maintenance workers, generalists, bystanders, and DIY. On a comparative basis, modeled dose and thus risk from dropped ceilings for all work categories were orders of magnitude lower than published exposures for other sources of banned friable asbestos-containing building material commonly encountered in construction trades. © 2016 The Authors Risk Analysis published by Wiley Periodicals, Inc. on behalf of Society for Risk Analysis.

  9. Research paper no. 18. Trading rules for CO2 emission permits systems. A proposal for ceilings on quantities and prices

    International Nuclear Information System (INIS)

    Criqui, P.; Viguier, L.

    2000-01-01

    Tradable emission permit (TEP) systems for greenhouse gases (GHGs) as they could develop following the Kyoto Protocol - that is if they are limited to Annex B countries and are not bound by exchange regulations) - do not appear to be greatly acceptable today, either to the United States or to the European Union. The problem of the uncertainty related to the cost of reducing emissions is strongly highlighted in the United States: in fact, the approach adopted in the Kyoto Protocol, that of quantitative emissions targets, leaves the question of the reduction programme costs wide open. For the European Union, the unregulated TEP system is hardly acceptable because it would not guarantee that the principle of 'supplementarity' adopted in the Kyoto Protocol, that is, the fact that the purchase of permits should be in addition to action taken within each of the Annex B countries. The section two of this paper is an in-depth economic analysis of the european proposal for ''concrete ceilings''. The alternative proposals, formulated in the United States and relating more to permit price ceilings or''trigger price'', are examined in Section 3. After showing that each of the foregoing proposals could have consequences unacceptable to some or others of the parties to the Protocol, Section 4 offers the proposal of a hybrid formula for regulating the rights market. In fact, the main aim of this paper is to show that the implementation of a 'hybrid solution', consisting of limiting the volume of exchanges while at the same time introducing a TEP price ceiling, could provide a market regulation framework effect allowing the benefits of most of the economic advantages to be enjoyed and also having characteristics acceptable to the various parties from an environmental as well as from an international fairness point of view. (A.L.B.)

  10. Human perception of indoor environment generated by chilled ceiling combined with mixing ventilation or localised chilled beam under cooling mode

    DEFF Research Database (Denmark)

    Bolashikov, Zhecho Dimitrov; Nygaard, Linette; Uth, Simon C.

    2014-01-01

    Experiments with 24 subjects were performed to study and compare the human perception of the indoor environment under summer conditions generated by a chilled ceiling combined with overhead mixing ventilation and localised chilled beam. The experiments were performed in an experimental chamber (4....../s during the 20 min period of physical activity, when the occupant was not at the desk with the localised chilled beam, resulting in increase of the air temperature in the room. Subjects used questionnaires to answer on thermal sensation and acceptability, perceived air quality, air movement and SBS...

  11. The Glass Ceiling Conundrum: Illusory belief or Barriers that impede Women’s Career Advancement in the Workplace.

    OpenAIRE

    Ganiyu, Rahim; Oluwafemi, Akintunde; Ademola, Afolabi; Olatunji, Okikiola

    2018-01-01

    Given the preponderance of women in the workforce, it remained a puzzle why the entry of women into higher managerial positions remains restricted and why the syndrome of ‘think manager think male is growing progressively? The objective of this paper is to examine the glass ceiling conundrum with a view of ascertain how it limits women’s career advancement in the workplace. Extensive review of literature was presented and discussed. The paper revealed that women are not making it to th...

  12. Evaluation of Coating Removal and Aggressive Surface Removal Surface Technologies Applied to Concrete Walls, Brick Walls, and Concrete Ceilings

    International Nuclear Information System (INIS)

    Ebadian, M.A.; Lagos, L.E.

    1997-01-01

    The purpose of this investigation was to test and evaluate innovative and commercially available technologies for the surface decontamination of walls and ceilings. This investigation supports the DOE's objectives of reducing risks to human health and the environment through its restoration projects at FEMP and MEMP. This project was performed at the Hemispheric Center for Environmental Technology (HCET) at Florida International University (FIU), where one innovative and four commercially available decontamination technologies were evaluated under standard, non-nuclear testing conditions. The performance data generated by this project will assist DOE site managers in the selection of the safest, most efficient, and most cost-effective decontamination technologies to accomplish their remediation objectives

  13. Performance of personalized ventilation combined with chilled ceiling in an office room: inhaled air quality and contaminant distribution

    DEFF Research Database (Denmark)

    Lipczynska, Aleksandra; Kaczmarczyk, Jan; Melikov, Arsen Krikor

    2014-01-01

    . Breathing thermal manikins were used to resemble two occupants at workstations. Room air temperature was kept at 26ºC and 28°C. Personalized ventilation supplied air at 25°C. Supplied total flow rate ranged from 26 to 82 L/s. Heat gains of 66-72 W/m2 were simulated. Tracer gases simulated pollution from...... people (exhaled air, bioeffluents) and building materials (wall painting). Personalized ventilation combined with chilled ceiling ensured highest air quality at the workstation under all conditions. Pollutant concentration in the occupied zone away from the workstations did not differ substantially...

  14. Implantação do ensino médio integrado em ceilândia: possibilidades e desafios

    OpenAIRE

    Corrêa, Joubert Almada

    2014-01-01

    O presente artigo tem como objetivo verificar a necessidade de implantação do Ensino Médio integrado a Educação Profissional Técnica de Nível Médio na modalidade presencial nas escolas públicas da cidade de Ceilândia/DF, de forma a oferecer alternativa de educação aos jovens que concluem o Ensino Fundamental e queiram realizar um curso profissionalizante visando o ingresso no competitivo mercado de trabalho e o ensino médio para acessar o ensino superior. Optou-se por realizar ...

  15. A escrita oralizada dos anúncios populares em Ceilândia : uma perspectiva ecolinguística

    OpenAIRE

    Gomes, Altair Martins

    2016-01-01

    Esta tese apresenta um estudo ecossistêmico sobre a escrita oralizada dos anúncios populares na cidade de Ceilândia e em sua periferia, o Setor Habitacional Sol Nascente. Em uma abordagem ecolinguística, pretendeu-se examinar a relação entre língua, povo e território ao investigar os diversos fenômenos fonético-fonológicos encontrados nos dados e que podem ser observados nas formas vernaculares encontradas no Português Brasileiro. A metodologia empregada é a pesquisa de levantamento de dados...

  16. Full Scale Measurements and CFD Simulations of Diffuse Ceiling Inlet for Ventilation and Cooling of Densely Occupied Rooms

    DEFF Research Database (Denmark)

    Mikeska, Tomás; Fan, Jianhua

    2015-01-01

    Spaces with high occupant densities result in high heat gains and need for relatively high air change rate.By means of traditional mechanical ventilation diffusers it becomes a challenge to supply large amountsof fresh air into the space without creating a local discomfort for occupants. One...... comfort numerically. Results of our investigations have shown that diffuse ceiling inlet is a suitable solution for the spaceswith high density occupancy. The results have shown that transient calculations using Large Eddy Simulation models can predict well temperatures and velocity magnitude of air flow...

  17. Setting limits: The development and use of factor-ceiling distributions for an urban assessment using macroinvertebrates

    Science.gov (United States)

    Carter, J.L.; Fend, S.V.

    2005-01-01

    Lotic habitats in urban settings are often more modified than in other anthropogenically influenced areas. The extent, degree, and permanency of these modifications compromise the use of traditional reference-based study designs to evaluate the level of lotic impairment and establish restoration goals. Directly relating biological responses to the combined effects of urbanization is further complicated by the nonlinear response often observed in common metrics (e.g., Ephemeroptera, Plecoptera, and Trichoptera [EPT] species richness) to measures of human influence (e.g., percentage urban land cover). A characteristic polygonal biological response often arises from the presence of a generalized limiting factor (i.e., urban land use) plus the influence of multiple additional stressors that are nonuniformly distributed throughout the urban environment. Benthic macroinvertebrates, on-site physical habitat and chemistry, and geographical information systems-derived land cover data for 85 sites were collected within the 1,600-km2 Santa Clara Valley (SCV), California urban area. A biological indicator value was derived from EPT richness and percentage EPT. Partitioned regression was used to define reference conditions and estimate the degree of site impairment. We propose that an upper-boundary condition (factor-ceiling) modeled by partitioned regression using ordinary least squares represents an attainable upper limit for biological condition in the SCV area. Indicator values greater than the factor-ceiling, which is monotonically related to existing land use, are considered representative of reference conditions under the current habitat conditions imposed by existing land cover and land use.

  18. An Improved Prediction Model for the Impact Sound Level of Lightweight Floors: Introducing Decoupled Floor-Ceiling and Beam-Plate Moment

    DEFF Research Database (Denmark)

    Mosharrof, Mohammad Sazzad; Brunskog, Jonas; Ljunggren, Fredrik

    2011-01-01

    To better understand the complex acoustic behaviour of lightweight building structures both experimental and theoretical approaches are necessary. Within the theoretical approach developing theoretical models is of great importance. The aim here is to further develop an existing method to predict...... the impact sound pressure level in a receiving room for a coupled floor structure where floor and ceiling are rigidly connected by beams. A theoretical model for predicting the impact sound level for a decoupled floor structure, which has no rigid mechanical connections between the floor and the ceiling......-third octave frequency bands. The predicted results from the model are compared with the results from the experiments on the decoupled floor-ceiling construction. The results gave agreements in line with comparisons regarding previous model. The effect of introducing beam-plate moment in the model is studied...

  19. Numerical analysis of the potential of using light radiant ceilings in combination with diffuse ventilation to achieve thermal comfort in NZEB buildings

    DEFF Research Database (Denmark)

    Krusaa, Marie Rugholm; Hviid, Christian Anker; Kolarik, Jakub

    be developed. Hydronic radiant ceiling systems with large surfaces for heat transfer are well suited for the usage of LTH-HTC. In this paper, the aim is to create a system that can be flexible and include ventilation. The system analysed are a suspended capillary tube ceiling placed on top of perforated gypsum...... basis in the dynamic building simulation tool IDA Indoor Climate and Energy (IDA ICE). The office building contains both offices and meeting rooms. Worst-case scenarios are investigated in the office building considering heat gains, solar gains and the temperature offset between supply water temperature...

  20. A Simulation Study on the Performance of Radiant Ceilings Combined with Free-Hanging Horizontal Sound Absorbers

    DEFF Research Database (Denmark)

    Kazanci, Ongun Berk; Domínguez, L. Marcos; Rage, Niels

    2018-01-01

    Radiant heating and cooling systems, and Thermally Active Building Systems (TABS) in particular, have several advantages such as benefiting from the low temperature heating and high temperature cooling principle, coupling with renewable energy sources, peak shifting and peak load reductions. When...... using TABS, most building simulation models assume an uncovered ceiling; however, this might not be the case in practice, due to the use of free-hanging horizontal (or vertical) sound absorbers for the control of room acoustic conditions. The use of sound absorbers will decrease the performance...... simulation software with a recently developed plug-in that allows simulating the effects of horizontal sound absorbers on the performance of TABS and on the thermal indoor environment. The change in thermal indoor environment and in performance of TABS were quantified, and the simulation results were...

  1. Parametric analysis of the operation of nocturnal radiative cooling panels coupled with in room PCM ceiling panels

    DEFF Research Database (Denmark)

    Bourdakis, Eleftherios; Kazanci, Ongun Berk; Péan, T.Q.

    2017-01-01

    03:00 and get activated when the temperature in the storage tank was below 21°C, 69.8°F, activate the heat pump no earlier than 05:00 and get activated when the temperature in the storage tank was below 15°C, 59°F, and lastly have a temperature difference between the output of the solar panels......The scope of this parametric simulation study was to identify the optimal combination of set-points for different parameters of a radiant PCM ceiling panels cooling system that will result in the best indoor thermal environment with the least possible energy use. The results showed that for each...

  2. Evaluation of Coating Removal and Aggressive Surface Removal Surface Technologies Applied to Concrete Walls, Brick Walls, and Concrete Ceilings

    Energy Technology Data Exchange (ETDEWEB)

    Lagos, L.E.; Ebadian, M.A.

    1997-11-01

    The purpose of this investigation was to test and evaluate innovative and commercially available technologies for the surface decontamination of walls and ceilings. This investigation supports the DOE's objectives of reducing risks to human health and the environment through its restoration projects at FEMP and MEMP. This project was performed at the Hemispheric Center for Environmental Technology (HCET) at Florida International University (FIU), where one innovative and four commercially available decontamination technologies were evaluated under standard, non-nuclear testing conditions. The performance data generated by this project will assist DOE site managers in the selection of the safest, most efficient, and most cost-effective decontamination technologies to accomplish their remediation objectives.

  3. Efficiency of overhead ceiling lifts in reducing musculoskeletal injury among carers working in long-term care institutions.

    Science.gov (United States)

    Alamgir, Hasanat; Yu, Shicheng; Fast, Catherine; Hennessy, Stephanie; Kidd, Catherine; Yassi, Annalee

    2008-05-01

    A longitudinal study was conducted in three long-term care facilities to evaluate the effectiveness and cost benefit of overhead lifts in reducing the risk of musculoskeletal injury among healthcare workers. Analysis of injury trends spanning 6 years before intervention (1996-2001) and 4 years after intervention (2002-2005) found a significant and sustained decrease in workers' compensation claims per number of beds and in working days lost per bed. The payback period was estimated under various assumptions and varied from 6.3 to 6.2 years if only direct claim-cost savings were included, and from 2.06 to 3.20 years when indirect savings were added. The significant reductions in injury rates and compensation claims support intervention with overhead ceiling lifts. A more comprehensive evaluation of such programmes should incorporate in the analysis important variables such as staffing ratios, job stresses, injury reporting systems and compensation policies during the study period.

  4. Shattering the Glass Ceiling. Issues and Solutions in Promoting the Advancement of Women and Minorities to Executive Management in Corporate America. White Paper 1966.

    Science.gov (United States)

    Microquest Corp., San Rafael, CA.

    Despite their progress in the workplace in recent years, women and minorities still remain greatly underrepresented in executive roles in major U.S. companies. The barriers, attitudes, and practices that deter the advancement of women and minorities into executive ranks collectively result in the phenomenon known as the "Glass Ceiling."…

  5. Interventions based on self-management of well-being theory: pooling data to demonstrate mediation and ceiling effects, and to compare formats.

    Science.gov (United States)

    Goedendorp, M M; Steverink, N

    2017-09-01

    Interventions based on self-management of well-being (SMW) theory have shown positive effects, but additional questions remain: (1) Are improvements in well-being, as induced by the interventions, mediated by improved self-management ability (SMA)? (2) Do the interventions show ceiling effects? (3) Is a particular format of SMW intervention (individual, group, or self-help) more effective? Data of three randomized controlled trials were pooled. The greater part of the sample (N = 445) consisted of single older females. A bootstrap analysis was performed to test for mediation. Regression analyses with interaction effects were performed to test for ceiling effects. Controlled and transformed effect sizes (proportion of maximum change) were calculated to compare formats. There was a full significant mediation of well-being by SMA. A significant interaction (ceiling) effect was found on well-being, but not on SMA. The controlled effect sizes of the raw scores were small to medium (.04-.49), and were small to large after transformation (.41-.73). None of the intervention formats was more effective. Support for SMW theory was found, i.e. increasing self-management ability lead to improved well-being. Some ceiling effect was found. We conclude that various SMW interventions formats can improve self-management abilities and well-being with medium effects.

  6. Simplified model and performance analysis for top insulated metal ceiling radiant cooling panels with serpentine tube arrangement

    Directory of Open Access Journals (Sweden)

    Guoqing Yu

    2018-03-01

    Full Text Available This paper develops a simplified model for top insulated metal ceiling radiant cooling panels with serpentine tube arrangement (CRCP-s to predict the mean panel temperature, outlet water temperature and cooling capacity. The simplified model needs no complicated calculation and can be conducted with a calculator. Experiment was conducted for two kinds of CRCP-s, comparisons indicate that the model predicted outlet water temperature and cooling capacity agree well with experiment measured results. The differences between model predicted and experiment measured results are acceptable for most engineering purpose, and the thermal performance analysis were conducted by the model. The results show that: (1 The tube spacing has significant effect on the cooling capacity within the applicable range of tube spacing from 0.05m to 0.3 m; (2 The tube thermal conductivity affect the cooling capacity significantly if it is less than 1.0 W/(m K; (3 The plate thickness has significant effect of the cooling capacity, if the plate thickness is less than 0.5 mm; (4 The water flowrate should be large enough to keep the flow in turbulent regime.

  7. Did it really happen? Memory, history and myth in Eugenia Tsoulis´ Between the ceiling and the sky

    Directory of Open Access Journals (Sweden)

    Catalina Ribas Segura

    2009-06-01

    Full Text Available World War II, the Nazi occupation and several dictatorships forced many Greek men and women into migration. In 1952 Greece signed an agreement on assisted migration to Australia and more than “250 000 Greek and Cypriot migrants from Greece (1952-74, Rumania (1952-8, Egypt and the Middle East (1952-2 [sic], Cyprus (1974-84 and other politically turbulent countries of Eastern Europe and Latin America” moved to Australia (Tamis, Anastasios M. The Greeks in Australia, 2005: 47. The lives of those migrants changed radically as they left home behind. Some of them, or their children, wrote fictional texts explaining some of their experiences. An example of this is Eugenia Tsoulis´ Behind the Ceiling and the Sky (1998, where the main characters live their lives between present and past and between memories and myths, on the one hand, and facts and the lifeworld that surround them, on the other. This paper will analyse this novel and the sometimes blurred boundaries between memory, history and myth.

  8. Effects of ceiling-mounted HEPA-UV air filters on airborne bacteria concentrations in an indoor therapy pool building.

    Science.gov (United States)

    Kujundzic, Elmira; Zander, David A; Hernandez, Mark; Angenent, Largus T; Henderson, David E; Miller, Shelly L

    2005-02-01

    The purpose of this study was to assess the effectiveness of a new generation of high-volume, ceiling-mounted high-efficiency particulate air (HEPA)-ultraviolet (UV) air filters (HUVAFs) for their ability to remove or inactivate bacterial aerosol. In an environmentally controlled full-scale laboratory chamber (87 m3), and an indoor therapy pool building, the mitigation ability of air filters was assessed by comparing concentrations of total bacteria, culturable bacteria, and airborne endotoxin with and without the air filters operating under otherwise similar conditions. Controlled chamber tests with pure cultures of aerosolized Mycobacterium parafortuitum cells showed that the HUVAF unit tested provided an equivalent air-exchange rate of 11 hr(-1). Using this equivalent air-exchange rate as a design basis, three HUVAFs were installed in an indoor therapy pool building for bioaerosol mitigation, and their effectiveness was studied over a 2-year period. The HUVAFs reduced concentrations of culturable bacteria by 69 and 80% during monitoring periods executed in respective years. The HUVAFs reduced concentrations of total bacteria by 12 and 76% during the same monitoring period, respectively. Airborne endotoxin concentrations were not affected by the HUVAF operation.

  9. Evaluation of base, optimum and ceiling temperature for (Kochia scoparia L. Schard with application of Five-Parameters-Beta Model

    Directory of Open Access Journals (Sweden)

    S. Sabouri Rad

    2016-05-01

    Full Text Available Kochia (Kochia scoparia L. Schard is an annual, halophyte and drought resistant plant, that it can be irrigated with saline water and a valuable source for forage under drought and saline ecosystems. In order to evaluate germination characteristics of kochia, an experiment was conducted at Physiology laboratory of Ferdowsi University of Mashhad, Iran, during 2009. This experiment was conducted in a completely randomized design with four replications. Germination was evaluated at 5, 10, 15, 20, 25, 30, 35 and 40°C under dark germinator with 50-60 percentage relative humidity. The results showed that the highest germination percentage was obtained at 20-30°C and the lowest obtained at 40°C. The longest and the shortest period to 20 and 50 germination percentage were recorded to 5-10°C and 20-30°C, respectively. The longest and the shortest period to 80 percentage germination were belonging to 15 and 30°C, respectively. Based on Five Parameters Beta model, base, optimum and ceiling temperatures for kochia estimated 3.4, 25 and 43.3°C, respectively. However, seed of this plant is able to germinate in wide temperature range.

  10. Evaluation of Various Retrofitting Concepts of Building Envelope for Offices Equipped with Large Radiant Ceiling Panels by Dynamic Simulations

    Directory of Open Access Journals (Sweden)

    Sabina Jordan

    2015-09-01

    Full Text Available In order to achieve significant savings in energy and an improved level of thermal comfort in retrofitted existing buildings, specific retrofitting concepts that combine new technologies and design need to be developed and implemented. Large radiant surfaces systems are now among the most promising future technologies to be used both in retrofitted and in new low-energy buildings. These kinds of systems have been the topic of several studies dealing with thermal comfort and energy utilization, but some specific issues concerning their possible use in various concepts for retrofitting are still poorly understood. In the present paper, some results of dynamic simulations, with the transient system simulation tool (TRNSYS model, of the retrofitted offices equipped with radiant ceiling panels are presented and thoroughly analysed. Based on a precise comparison of the results of these simulations with actual measurements in the offices, certain input data for the model were added, so that the model was consequently validated. The model was then applied to the evaluation of various concepts of building envelopes for office retrofitting. By means of dynamic simulations of indoor environment it was possible to determine the benefits and limitations of individual retrofitting concepts. Some specific parameters, which are relevant to these concepts, were also identified.

  11. Determination of optimum insulation thicknesses of the external walls and roof (ceiling) for Turkey's different degree-day regions

    International Nuclear Information System (INIS)

    Sisman, Nuri; Kahya, Emin; Aras, Nil; Aras, Haydar

    2007-01-01

    The external walls and roof of a building are the interface between its interior and the outdoor environment. Insulation of the external walls and roof is the most cost-effective way of controlling the outside elements to make homes more comfortable. Although insulation is generally accepted as a factor increasing the building costs, with the calculations we have shown that this is not the case. Fuel consumption and operational costs are reduced by increasing the thickness of the external walls and roof (ceiling), despite an increase in the investment costs. According to Turkish Standard Number 825 (TS 825), there are four different degree-day (DD) regions, and the required heat loads for the buildings in these regions exhibit large differences. Therefore, a method based on costs is needed for the determination of optimum insulation thicknesses of different DD regions. In this study, optimum insulation thicknesses for different DD regions of Turkey, namely, Izmir (DD: 1450), Bursa (DD: 2203), Eskisehir (DD: 3215) and Erzurum (DD: 4856), have been determined for a lifetime of N years, maximizing the present worth value of annual energy savings for insulated external walls

  12. Experimental study of the operation of the bolt joint of a bearerwith a column in precast-monolithic ceiling

    Directory of Open Access Journals (Sweden)

    Koyankin Aleksandr Aleksandrovich

    2015-05-01

    Full Text Available Precast-monolithic construction is becoming an increasingly popular form of housing. The wide distribution of this type of construction is explained by the possibility to successfully combine the advantages of precast and monolithic construction, at the same time reducing their disadvantages. Though there is a significant lack of data, including experimental data, for objective assessment of the stress-strain state of precast-monolithic floor structures. In order to investigate the structural reliability of the bolt joint of a bearer with a column in a precast-monolithic building a series of experimental investigations were carried out in the laboratory of testing the building structures of the Siberian Federal University.One of the main conclusions is that the bolt joint of a bearer with a column is characterized by sufficient rigidity, crack resistance and bearing capacity. The results of the given work have proved the data obtained in previously conducted investigations on a fragment of a precast-monolithic ceiling.

  13. Dental Stem Cell Migration on Pulp Ceiling Cavities Filled with MTA, Dentin Chips, or Bio-Oss

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    Stefania Lymperi

    2015-01-01

    Full Text Available MTA, Bio-Oss, and dentin chips have been successfully used in endodontics. The aim of this study was to assess the adhesion and migration of dental stem cells on human pulp ceiling cavities filled with these endodontic materials in an experimental model, which mimics the clinical conditions of regenerative endodontics. Cavities were formed, by a homemade mold, on untouched third molars, filled with endodontic materials, and observed with electron microscopy. Cells were seeded on cavities’ surface and their morphology and number were analysed. The phenomenon of tropism was assessed in a migration assay. All three materials demonstrated appropriate microstructures for cell attachment. Cells grew on all reagents, but they showed a differential morphology. Moreover, variations were observed when comparing cells numbers on cavity’s filling versus the surrounding dentine disc. The highest number of cells was recorded on dentin chips whereas the opposite was true for Bio-Oss. This was confirmed in the migration assay where a statistically significant lower number of cells migrated towards Bio-Oss as compared to MTA and dentin chips. This study highlights that MTA and dentin chips have a greater potential compared to Bio-Oss regarding the attraction of dental stem cells and are good candidates for bioengineered pulp regeneration.

  14. Informal markets and urban sociabilities in the periphery of Brasilia: the case of Ceilândia - DF

    Directory of Open Access Journals (Sweden)

    Breitner Tavares

    2009-06-01

    Full Text Available This article makes use of some theoretical landmarks of the theory of the city to after rethink the trajectory of Brasilia in the first years its inauguration in 1960. Initially, a quarrel is become fulfilled, in terms of its process of urban segregation and its consequences in terms of the sprouting , of informal places of commerce. After that, while empiric reference, appeals itself the trajectory of the city of Ceilândia – DF, as consequence of the fast transformation of the urban landscape of Brasília. Furthermore, the sprouting of spaces of sociability of actors will be argued insurgent citizens who faces the exclusion of the modern city from the redefinition of practical solidarity as free market of exchanges and fairs as the case of the Feira do Rolo, a kind of flea market, that in relation to other markets, offers to the consumer many products for cheaper prices. Consequently, the fair simultaneously constitutes a commercial alternative for a working class community; and one has left of the significant collective memory of the city, an immaterial heritage that has been redefined permanently by its inhabitants.

  15. Daytime space cooling with phase change material ceiling panels discharged using rooftop photovoltaic/thermal panels and night-time ventilation

    DEFF Research Database (Denmark)

    Bourdakis, Eleftherios; Pean, Thibault Quentin; Gennari, Luca

    2016-01-01

    The possibility of using photovoltaic/thermal panels for producing cold water through the process of night-time radiative cooling was experimentally examined. The cold water was used to discharge phase change material in ceiling panels in a climatic chamber. Both night-time radiative cooling...... and night-time ventilation were used as the discharging method in five experiments, simulating summer conditions. The operative temperature remained within the range of Category III of standard DS/EN 15251 for 50% to 99% of the occupancy period. The percentage of electrical energy usage covered from...... the photovoltaic/thermal varied from 56% to 122%. The phase change material ceiling panels were thus, capable of providing an acceptable thermal environment and the photovoltaic/thermal panels were able to provide most of the required electricity and cold water needed for cooling....

  16. The Glass Ceiling Effect and Its Impact on Mid-Level Female Military Officer Career Progression in the United States Marine Corps and Air Force

    Science.gov (United States)

    2004-03-01

    glass ceiling and the evolution of women in the military. Chapter V is an empirical analysis of the current level of female representation in the...members. These opportunities have enabled women to participate in more training evolutions , exercises and real time operations thus providing them not...off your whole girlish, Malibu Barbie thing that you got going on. You need to be a little bit more down to earth. That is bad because that is not

  17. Ceiling-mounted personalized ventilation system integrated with a secondary air distribution system--a human response study in hot and humid climate.

    Science.gov (United States)

    Yang, B; Sekhar, S C; Melikov, A K

    2010-08-01

    The benefits of thermal comfort and indoor air quality with personalized ventilation (PV) systems have been demonstrated in recent studies. One of the barriers for wide spread acceptance by architects and HVAC designers has been attributed to challenges and constraints faced in the integration of PV systems with the work station. A newly developed ceiling-mounted PV system addresses these challenges and provides a practical solution while retaining much of the apparent benefits of PV systems. Assessments of thermal environment, air movement, and air quality for ceiling-mounted PV system were performed with tropically acclimatized subjects in a Field Environmental Chamber. Thirty-two subjects performed normal office work and could choose to be exposed to four different PV airflow rates (4, 8, 12, and 16 L/s), thus offering themselves a reasonable degree of individual control. Ambient temperatures of 26 and 23.5 degrees C and PV air temperatures of 26, 23.5, and 21 degrees C were employed. The local and whole body thermal sensations were reduced when PV airflow rates were increased. Inhaled air temperature was perceived cooler and perceived air quality and air freshness improved when PV airflow rate was increased or temperature was reduced. The newly developed ceiling-mounted PV system offers a practical solution to the integration of PV air terminal devices (ATDs) in the vicinity of the workstation. By remotely locating the PV ATDs on the ceiling directly above the occupants and under their control, the conditioned outdoor air is now provided to the occupants through the downward momentum of the air. A secondary air-conditioning and air distribution system offers additional cooling in the room and maintains a higher ambient temperature, thus offering significant benefits in conserving energy. The results of this study provide designers and consultants with needed knowledge for design of PV systems.

  18. Uso e circulação de medicamentos em um bairro popular urbano na Ceilândia, DF Medicine's use and circulation in an urban popular neighborhood in Ceilândia, DF

    Directory of Open Access Journals (Sweden)

    Soraya Fleischer

    2012-06-01

    Full Text Available Nos subúrbios de Brasília, as cuidadoras da saúde doméstica são particularmente as mulheres idosas. Elas conhecem os atalhos oficiais e não oficiais no sistema de saúde, os medicamentos que cada membro da família deve tomar e os lugares onde os medicamentos são distribuídos ou podem ser comprados mais baratos. Elas também experimentam com pílulas e cápsulas - quais são fortes ou perigosas, quais precisam ser substituídas e combinadas com outros fármacos, etc. A partir de pesquisa etnográfica com moradores mais antigos do bairro da Guariroba na Ceilândia, DF, que convivem com hipertensão arterial sistêmica e diabetes mellitus, este artigo pretende discutir como redes informais de compartilhamento farmacêutico e formas locais de comunicação entre famílias, vizinhos e profissionais de saúde determinam uma compreensão mais ampla e complexa de "saúde". Alguns dados que nos apoiarão nessa discussão são as histórias de vida desses migrantes para o DF; o consumo de medicamentos como gerador de experiências corporais e sociais do adoecimento; a automedicação como prática também após o contato com a esfera biomédica. Esse artigo quis enfatizar que as opiniões técnicas e produtos emitidos pelos atores oficiais do cuidado da saúde não evitavam que uma rede muito mais ampla e criativa fosse constantemente acionada por essas mulheres entrevistadas, nem a substituíam. E que aperfeiçoar essa rede é uma demonstração pública do envolvimento e também do comprometimento destas cuidadoras com a recuperação ou, ao menos, a estabilidade do doente.In the suburbs of Brasilia, family health is taken care of in particular by elderly women. They know the official and non-official shortcuts inside the health system, medicines that each of the family members should take and the places where medicines can be bought cheaper or received for free. They also make experiments with pills and capsules - each ones are strong or

  19. The Glass Ceiling Conundrum: Illusory belief or Barriers that impede Women’s Career Advancement in the Workplace.

    Directory of Open Access Journals (Sweden)

    Rahim Ganiyu

    2018-01-01

    Full Text Available Given the preponderance of women in the workforce, it remained a puzzle why the entry of women into higher managerial positions remains restricted and why the syndrome of ‘think manager think male is growing progressively? The objective of this paper is to examine the glass ceiling conundrum with a view of ascertain how it limits women’s career advancement in the workplace. Extensive review of literature was presented and discussed. The paper revealed that women are not making it to the very top of their career not as a result of lack of requisite qualifications, and experience etc.; but as a result of factors that are rooted in cultural, societal, organizational, individual and psychological factors that inhibit women career advancement.  Against the aforementioned background, the paper concludes that women advance marginally to certain level in corporate executive cadre, before they experience ‘glass ceiling’ that impedes their prospect of attaining senior executive position. Accordingly, women compared to men represent an insignificant fraction of those in managerial positions due to cultural prejudice, religion convictions, family related issues, individual and organizational influences. Similarly, inadequate opportunity to networks and seek sponsorship limits women progression to top managerial hierarchy. The study recommends the need to articulate policy frameworks that promote strong organizational culture and a more helpful and supportive environment to develop women leadership skills.  Similarly, there is need to promote sponsorship for women in a way and manner that safeguard the relationships between sponsors and protégés.

  20. Gender-gaps and glass ceilings: A survey of gender-specific publication trends in Psychiatry between 1994 and 2014.

    Science.gov (United States)

    Süßenbacher, S; Amering, M; Gmeiner, A; Schrank, B

    2017-07-01

    Within academic psychiatry, women are underrepresented in the higher academic ranks. However, basic determinants of women's lack of academic advancement such as publication activity are poorly understood. The present study examines women's publication activity in high-impact psychiatry journals over two decades and reports developments in the numbers of male and female authorship over time and across cultural areas. We conducted a retrospective bibliometric review of all articles published in 2004 and 2014 in three high-ranking general psychiatry journals. Statistical comparisons were made between the two years and with results from a baseline assessment in 1994. The overall percentage of female authors increased from 24.6% in 1994 to 33.2% in 2004 to 38.9% in 2014. Though increases in female authorship were statistically significant for both decades, there was less difference between 2004 and 2014, indicating a possible ceiling effect. Rates of female first authors increased between 1994 and 2014, though to a lesser degree between 2004 and 2014. Numbers of female corresponding authors plateaued between 2004 and 2014. Within Europe, Scandinavia displayed the most balanced gender-wise first author ratios. Western European and Central European countries increased their rates of female first authors substantially between 2004 and 2014. Despite gains in some areas, our study reveals considerable deficits in the diversity of the current academic psychiatric landscape. Ongoing efforts and interventions to enhance the participation of underrepresented groups on institutional, political and editorial levels are necessary to diversify psychiatric research. Copyright © 2017 Elsevier Masson SAS. All rights reserved.

  1. Armored glass university ceilings

    Directory of Open Access Journals (Sweden)

    Ana Guil Bozal

    2016-12-01

    Full Text Available The barriers that women face to occupy the highest professional positions are well studied, yet they persist. The employment situation of women has improved, but the positions of power are still predominantly in male hands, as if men continually seek new mechanisms to keep, like viruses that change every year to survive the way vaccines. Barriers persist, although in recent decades women have managed to overcome in quantity and quality to men among university students. Women are still unable to access the best academic positions. Among university faculty only reach 40% and full professor position remain masculinized, having managed to reach the women -after many efforts and some policies- measures only 20%, which is seen clearly insufficient given their greater training. Against this background, the future is difficult, unless the university decided to endorse the cause of equality, going to assume its role of reference for the new generations and to other organizations and society in general.

  2. Participação Popular em Saúde: Um Estudo Sobre o Conselho Regional de Saúde de Ceilândia, Distrito Federal.

    Directory of Open Access Journals (Sweden)

    Andrecinda Rocha PINA

    2013-04-01

    Full Text Available A questão da participação popular para o exercício do controle social do Sistema Único de Saúde é especialmente importante para o debate da política de saúde no Brasil e, conforme estabelecido na Lei 8142 de 1990, essa participação deve ser realizada por meio dos conselhos e conferências de saúde. O presente artigo estuda a participação popular em saúde no Conselho Regional de Saúde de Ceilândia, Distrito Federal, problematizando em torno do exercício do controle social exercido pelos conselheiros do respectivo colegiado. Esta pesquisa teve por objetivo geral entender como se dá a Participação Social no Conselho Regional de Saúde de Ceilândia na gestão 2010-2011, buscando especificamente entender sua dinâmica de funcionamento. Partindo de uma abordagem metodológica qualiquantitativa, utilizamos como procedimento a análise documental, com levantamento de dados relativos à dinâmica de suas reuniões. Depreende-se do estudo realizado a participação expressiva dos segmentos integrantes. A grande maioria dos assuntos pautados foi proposta, especialmente, pelo segmento gestor. Entretanto, os itens em discussão revelam que os interesses dos usuários e trabalhadores permeavam com mais frequência os debates. Por fim, conclui-se que, em um contexto geral, o Conselho Regional de Saúde de Ceilândia é um fórum político legítimo e atuante, com atuação decisiva nas deliberações das ações e serviços de saúde a nível local. ABSTRACT The issue of popular participation in the exercise of social control Health System is especially important for the health policy debate in Brazil and, as stated in the Law 8142/1990, this participation must be done through the advice and health conferences. This paper studies popular participation in health in the Regional Health Ceilândia, Distrito Federal, questioning around the exercise of social control exercised by the directors of the respective collegiate. This research aimed

  3. Celestial Phenomena and Royal Glory: The Painted Ceiling in Ehrenstrahlsalongen by David Klöcker Ehrenstrahl at Drottningholm Palace in Sweden

    Science.gov (United States)

    Söderlund, I. E.

    2011-06-01

    This paper explores the relationship of astronomical phenomena and the painted ceiling The Glorious Deeds of Swedish Kings executed around 1694-1696 by the Swedish court painter David Klöcker Ehrenstrahl in the Royal manor Drottningholm, outside Stockholm. The central theme of the painting is how "Reputation" brings the renown of the valour of the Swedish kings to the stars. When Galileo dedicated the moons of Jupiter to the Medici's he used an already established tradition of likening prominent people to celestial phenomena. This paper explores why motifs related to the stars and heavens was considered to be so suitable in the court context in early modern Europe.

  4. Comparison of ceiling effects between two patient-rating scores and a physician-rating score in the assessment of outcome after the surgical treatment of distal radial fractures.

    Science.gov (United States)

    Kim, S-J; Lee, B-G; Lee, C-H; Choi, W-S; Kim, J-H; Lee, K-H

    2015-12-01

    We compared the ceiling effects of two patient-rating scores, the Disability of the Arm, Shoulder and Hand (DASH) and Patient-Rated Wrist Evaluation (PRWE), and a physician-rating score, the Modified Mayo Wrist Score (MMWS) in assessing the outcome of surgical treatment of an unstable distal radial fracture. A total of 77 women with a mean age of 64.2 years (50 to 88) who underwent fixation using a volar locking plate for an unstable distal radial fracture between 2011 and 2013 were enrolled in this study. All completed the DASH and PRWE questionnaires one year post-operatively and were assessed using the MMWS by the senior author. The ceiling effects in the outcome data assessed for each score were estimated. The data assessed with both patient-rating scores, the DASH and PRWE, showed substantial ceiling effects, whereas the data assessed with MMWS showed no ceiling effect. Researchers should be aware of a possible ceiling effect in the assessment of the outcome of the surgical treatment of distal radial fractures using patient-rating scores. It could also increase the likelihood of a type II error. ©2015 The British Editorial Society of Bone & Joint Surgery.

  5. Low-dose radiation pretreatment improves survival of human ceiling culture-derived proliferative adipocytes (ccdPAs) under hypoxia via HIF-1 alpha and MMP-2 induction

    International Nuclear Information System (INIS)

    Adachi, Naoki; Kubota, Yoshitaka; Kosaka, Kentarou; Akita, Shinsuke; Sasahara, Yoshitarou; Kira, Tomoe; Kuroda, Masayuki; Mitsukawa, Nobuyuki; Bujo, Hideaki; Satoh, Kaneshige

    2015-01-01

    Poor survival is a major problem of adipocyte transplantation. We previously reported that VEGF and MMPs secreted from transplanted adipocytes are essential for angiogenesis and adipogenesis. Pretreatment with low-dose (5 Gy) radiation (LDR) increased VEGF, MMP-2, and HIF-1 alpha mRNA expression in human ceiling culture-derived proliferative adipocytes (hccdPAs). Gene expression after LDR differed between adipose-derived stem cells (hASCs) and hccdPAs. Pretreatment with LDR improved the survival of hccdPAs under hypoxia, which is inevitable in the early stages after transplantation. Upregulation of VEGF and MMP-2 after LDR in hccdPAs is mediated by HIF-1 alpha expression. Our results suggest that pretreatment with LDR may improve adipocyte graft survival in a clinical setting through upregulation of VEGF and MMP-2 via HIF-1 alpha. - Highlights: • Ceiling culture-derived proliferative adipocytes (ccdPAs) react to radiation. • Low-dose radiation (LDR) pretreatment improves survival of ccdPAs under hypoxia. • Gene expression after LDR differs between ccdPAs and adipose-derived stem cells. • LDR-induced increase in MMP-2 and VEGF is dependent on HIF-1 alpha induction. • LDR pretreatment may improve the adipocyte graft survival rate in clinical settings

  6. Low-dose radiation pretreatment improves survival of human ceiling culture-derived proliferative adipocytes (ccdPAs) under hypoxia via HIF-1 alpha and MMP-2 induction

    Energy Technology Data Exchange (ETDEWEB)

    Adachi, Naoki [Department of Plastic Surgery, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba-city, Chiba, #260-8677 (Japan); Kubota, Yoshitaka, E-mail: kubota-cbu@umin.ac.jp [Department of Plastic Surgery, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba-city, Chiba, #260-8677 (Japan); Kosaka, Kentarou; Akita, Shinsuke; Sasahara, Yoshitarou; Kira, Tomoe [Department of Plastic Surgery, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba-city, Chiba, #260-8677 (Japan); Kuroda, Masayuki [Center for Advanced Medicine, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba-city, Chiba, #260-8677 (Japan); Mitsukawa, Nobuyuki [Department of Plastic Surgery, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba-city, Chiba, #260-8677 (Japan); Bujo, Hideaki [Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University, Sakura Medical Center, 564-1 Shimoshizu, Sakura-shi, Chiba, #285-8741 (Japan); Satoh, Kaneshige [Department of Plastic Surgery, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba-city, Chiba, #260-8677 (Japan)

    2015-08-07

    Poor survival is a major problem of adipocyte transplantation. We previously reported that VEGF and MMPs secreted from transplanted adipocytes are essential for angiogenesis and adipogenesis. Pretreatment with low-dose (5 Gy) radiation (LDR) increased VEGF, MMP-2, and HIF-1 alpha mRNA expression in human ceiling culture-derived proliferative adipocytes (hccdPAs). Gene expression after LDR differed between adipose-derived stem cells (hASCs) and hccdPAs. Pretreatment with LDR improved the survival of hccdPAs under hypoxia, which is inevitable in the early stages after transplantation. Upregulation of VEGF and MMP-2 after LDR in hccdPAs is mediated by HIF-1 alpha expression. Our results suggest that pretreatment with LDR may improve adipocyte graft survival in a clinical setting through upregulation of VEGF and MMP-2 via HIF-1 alpha. - Highlights: • Ceiling culture-derived proliferative adipocytes (ccdPAs) react to radiation. • Low-dose radiation (LDR) pretreatment improves survival of ccdPAs under hypoxia. • Gene expression after LDR differs between ccdPAs and adipose-derived stem cells. • LDR-induced increase in MMP-2 and VEGF is dependent on HIF-1 alpha induction. • LDR pretreatment may improve the adipocyte graft survival rate in clinical settings.

  7. Postoperative Perfection: Ceiling Effects and Lack of Discrimination With Both SRS-22 and -24 Outcomes Instruments in Patients With Adolescent Idiopathic Scoliosis.

    Science.gov (United States)

    Bastrom, Tracey P; Bartley, Carrie; Marks, Michelle C; Yaszay, Burt; Newton, Peter O

    2015-12-01

    Review of a prospective database registry. To compare the Scoliosis Research Society (SRS)-22 and SRS-24 outcomes instruments in terms of scores, rate of ceiling effects, and discriminant ability in patients with pre- and postoperative adolescent idiopathic scoliosis. Despite improvements noted with the SRS-22, the SRS-24 is still occasionally used prospectively and for comparisons with previous studies reporting SRS-24 scores. Previous work has demonstrated that postoperative scores from the 2 versions are not interchangeable. A multicenter prospective registry of patients who underwent surgical correction of adolescent idiopathic scoliosis was queried for preoperative and 2-year postoperative SRS-22 and SRS-24 scores. Scores were compared between versions and ceiling effects were identified. Groups of deformity severity were created to evaluate discriminant ability. 829 patients were identified. The SRS-22 scores for pain and general function were significantly greater than SRS-24 scores (P self-image (P self-image domain was able to discriminate between large (29°+) and small (≤11°) residual curves (P < 0.05). Scores obtained by the SRS-22 and the SRS-24 are not translatable despite shared domains. Whereas both versions demonstrated preoperative discriminant ability, postoperative discrimination of residual deformity is lacking in both. Patient-reported outcomes of treatment are crucial in advancing treatment, and improvement in the ability to assess subjective outcomes is essential. 3.

  8. Improvement of psychometric properties of a scale measuring inpatient satisfaction with care: a better response rate and a reduction of the ceiling effect

    Directory of Open Access Journals (Sweden)

    Lombrail Pierre

    2007-12-01

    Full Text Available Abstract Background The objective was to solve two problems of an already validated scale measuring inpatient opinion on care: 1 a high non-response rate for some items due to the "not applicable" response option and 2 a skewed score distribution with high ceiling effect. Methods The EQS-H scale ("échelle de qualité des soins en hospitalisation" comprised 26 items and 2 sub-scales of 13 items each, 'quality of medical information' (MI and 'relationships with staff and daily routine' (RS. Three studies were conducted: a first mono-centre study (n = 552, response rate = 83.4%, self-completion of the scale the day before discharge to construct a shorter version of the scale without the items with high non-response rate and maintaining those useful to ensure good internal validity (construct, convergent and divergent and reliability; a second mono-centre study (n = 1246, response rate = 77.9%, self-completion of the scale before discharge to confirm psychometric properties of the new version; a third multi-centre national study (n = 886, response rate 41.7%, self-completion at home 15 days after discharge to test a new response pattern in order to reduce ceiling effect. Results Six items having a non-response rate >20% were deleted, increasing rates of exhaustive response to all items from 15% to 48%. Factorial analysis supported the evidence for removing 4 more items to ensure good internal validity and reliability of the new version. These good results (initial variance explained: 43%; Cronbach's α: 0.80 (MI and 0.81 (RS were confirmed by the second study. The new response format produced a normalisation of the 2 scores with a large decrease in ceiling effect (25% to 4% for MI subscale and 61% to 8% for RS. Psychometric properties of the final version were excellent: the 2 subscales (8 items each explained 66% of the variance in principal component analysis, Cronbach's α were respectively 0.92 (MI and 0.93 (RS. Conclusion The new version of

  9. O tempo da falta e o tempo da bonança: experiências de cronicidade na Guariroba, Ceilândia/DF

    OpenAIRE

    Fleischer, Soraya; Batista, Monique

    2014-01-01

    Nesse artigo, dados etnográficos sobre a convivência com a diabetes mellitus e a hipertensão arterial sistêmica pretendem dialogar com dados referentes às mudanças urbanas na cidade da Ceilândia/DF. As narrativas comunicam experiências de doenças e também sobre os diferentes tempos e espaços vividos por um conjunto de senhores e senhoras, hoje com 60 ou 70 anos de idade, que migraram para a região no início da construção da capital. Utilizando uma alegoria – “tempos de falta” e “tempos de bon...

  10. The effects of mixing air distribution and heat load arrangement on the performance of ceiling radiant panels under cooling mode of operation

    DEFF Research Database (Denmark)

    Mustakallio, Panu; Kosonen, Risto; Melikov, Arsen Krikor

    2016-01-01

    in a test chamber equipped with two ceiling radiant panels and air distribution units flush with the radiant panels. The heat load was generated through the walls and with heated cylinders. The cooling power of the radiant panels was increased with the studied air distribution methods. The increase was from......The cooling power of radiant panels can be effected by the arrangement of heat loads and by the room air distribution system. This impact can be important because often the cooling output is the critical factor for the design and usability of radiant panels. In this study, the impact of heat load...... 5% to 17% depending on the air distribution method and the heat load arrangement. The most significant effect of the heat load arrangement occured when heat loads are located unevenly and their convection flow turns or weakens the supply air jet flushing the radiant panels....

  11. Ceiling personalized ventilation combined with desk fans for reduced direct and indirect cross-contamination and efficient use of office space

    International Nuclear Information System (INIS)

    Habchi, Carine; Ghali, Kamel; Ghaddar, Nesreen; Chakroun, Walid; Alotaibi, Sorour

    2016-01-01

    Highlights: • Cross-infection occurs by direct inhalation and contact of contaminated surfaces. • Mixing ventilation performance is degraded at reduced distance between occupants. • Ceiling personalized ventilation reduces significantly cross-contamination. • The optimized system induces large energy savings compared to mixing ventilation. • The optimized system improves the occupation density from 12 to 8 m 2 per occupant. - Abstract: Crowded offices with short distances separating workers’ stations increase the probability of respiratory cross-infection via two different paths. One path is the contaminant transmission through air by direct inhalation and the other is through the body contact of contaminated surfaces and walls. Mixed ventilation principles used today reduces the probability of cross contamination by increasing the distance between the stations challenging the efficient use of the space or by supplying more fresh air in the space which is energy inefficient. In this work, new cooling and ventilation configuration is studied by modeling using computational fluid dynamics with consideration of space occupancy density while providing good indoor air quality. The configuration considers a ceiling personalized ventilation system equipped with desk fans. The ability of the computational fluid dynamics model in computing the thermal, velocity and concentration fields was validated by experiments and published data. The main objective of the performed experiments was to ensure that the developed computational fluid dynamics model can capture the effect of the desk fan flow rate on particle behavior. The studied system is found to provide acceptable indoor air quality at shorter distance between the occupants compared to the mixing system at considerable energy savings. By optimizing the design of the proposed personalized ventilation system, the occupancy density in an office is enhanced to 8 m 2 per occupant compared to 12 m 2 per occupant for

  12. Limitations and ceiling effects with circumferential minimally invasive correction techniques for adult scoliosis: analysis of radiological outcomes over a 7-year experience.

    Science.gov (United States)

    Anand, Neel; Baron, Eli M; Khandehroo, Babak

    2014-05-01

    Minimally invasive correction of adult scoliosis is a surgical method increasing in popularity. Limited data exist, however, as to how effective these methodologies are in achieving coronal plane and sagittal plane correction in addition to improving spinopelvic parameters. This study serves to quantify how much correction is possible with present circumferential minimally invasive surgical (cMIS) methods. Ninety patients were selected from a database of 187 patients who underwent cMIS scoliosis correction. All patients had a Cobb angle greater than 15°, 3 or more levels fused, and availability of preoperative and postoperative 36-inch standing radiographs. The mean duration of follow-up was 37 months. Preoperative and postoperative Cobb angle, sagittal vertical axis (SVA), coronal balance, lumbar lordosis (LL), and pelvic incidence (PI) were measured. Scatter plots were performed comparing the pre- and postoperative radiological parameters to calculate ceiling effects for SVA correction, Cobb angle correction, and PI-LL mismatch correction. The mean preoperative SVA value was 60 mm (range 11.5-151 mm); the mean postoperative value was 31 mm (range 0-84 mm). The maximum SVA correction achieved with cMIS techniques in any of the cases was 89 mm. In terms of coronal Cobb angle, a mean correction of 61% was noted, with a mean preoperative value of 35.8° (range 15°-74.7°) and a mean postoperative value of 13.9° (range 0°-32.5°). A ceiling effect for Cobb angle correction was noted at 42°. The ability to correct the PI-LL mismatch to 10° was limited to cases in which the preoperative PI-LL mismatch was 38° or less. Circumferential MIS techniques as currently used for the treatment of adult scoliosis have limitations in terms of their ability to achieve SVA correction and lumbar lordosis. When the preoperative SVA is greater than 100 mm and a substantial amount of lumbar lordosis is needed, as determined by spinopelvic parameter calculations, surgeons should

  13. The interpretation of the figure of the prophet Jonah by Michelangelo on the ceiling of the Sistine Chapel: anatomical urological vision.

    Science.gov (United States)

    Reis, Leonardo Oliveira; Zani, Emerson Luis; Alonso, Joao Carlos; Simoes, Fabiano Andre; Rejowski, Ronald Finamore; Barreto, Gilson

    2012-01-01

    A detailed analysis in the iconography and pictorial appearance of the scene of the "Prophet Jonah" painted by the artist Michelangelo Buonarroti (1475-1564) on the ceiling of the Sistine Chapel between the years 1508 and 1512. Literature review on the Italian Renaissance period and the life of Michelangelo Buonarroti and analysis of historical aspects of the evolution of studies of human anatomy in this period and the works of the artist. A comparative analysis of the representation of the figure of the fish on the left thigh of "Jonah " with a cross section of penis shows a curious similarity. The pictorial and iconographic analysis reveals an intensity of light on the pubic area and the position of the prophet with the legs spread apart and left hand placed on this region. A tube-shaped cloth covers the region and the angel at the side seems to be looking at this anatomical region of "Jonah". In fact, sets of iconographic and pictorial relate to the deciphered code. This description helps to confirm the relationship of the Renaissance art with the human anatomy; science has been much studied in this period. The design of a cross section of the penis is revealed with the two cavernous bodies with the septum between them and the spongy body. Considering the circumstances in which Michelangelo had painted, subjectivity was fundamental due to religious motivations added to the vigorous implications of a limited scientific knowledge typical of that era.

  14. The vocational training of occupational therapists and the Undergraduate Course at the University of Brasília, Ceilândia College

    Directory of Open Access Journals (Sweden)

    Paula Giovana Furlan

    2014-04-01

    Full Text Available Health training has been discussed in the educational field, guiding curriculum changes for undergraduate courses according to the current public policies, mainly the National Health System and the new Curriculum Guidelines. Professional formation based on the active pursuit of knowledge, ensuring integrality and humanization of health care, is objectified. In this perspective, this article presents a literature review on the scientific production related to health training, specifically the training of occupational therapists, and examines how the political pedagogical project of the occupational therapy undergraduate course of the University of Brasília – Ceilândia College (UnB-FCE contemplates and prioritizes vocational training guided by current trends. We found 14 scientific articles addressing the reformulation of the curricula of undergraduate courses, favoring interdisciplinarity and practical activities in social infrastructure. The teaching practice and the student body posture interfere in the educational process, with the challenge of developing communicative, affective and relational skills in contrast with the current teaching model. The undergraduate program in occupational therapy of UnB-FCE is recent, and it aims at vocational training under the new proposed model. It is organized in relation to the fields of professional practice and human functionality, and it prioritizes the local community development through teaching, research, and extension projects associated with the health services of the Federal District.

  15. New construction standard for electrical underfloor and ceiling heatings DIN VDE 0100 part 520 A3. Pt. 2. Neue Errichtungsnorm fuer elektrische Fussboden- und Deckenheizungen DIN VDE 0100 Teil 520 A3. T. 2

    Energy Technology Data Exchange (ETDEWEB)

    Nienhaus, H.

    1991-06-01

    Several standards have to be taken into account for the installation of underfloor and ceiling heating. Mainly DIN 19560 part 1 applies to the laying of heating elements in the floors. Apart from that there are a number of additional requirements for rooms with bath tub or shower, areas of swimming pools, agricultural premises, premises and rooms with high fire risk, exterior areas. It is particularly important to explain structure and function of the underfloor or ceiling heating to the builder-owner and user of the system. Also here the information to be given is laid down in standards. At the end of the article a comprehensive list of all standards and technical regulations concerning this field is given. (BWI). Pt. 1 published in TAB, Tech. Bau (1991) v. 22(5).

  16. DIN VDE 0100 part 520 A3, a new specification for installation of electric floor and ceiling heating systems. Neue Errichtungsnorm fuer elektrische Fussboden- und Deckenheizungen - DIN VDE 0100 Teil 520 A3

    Energy Technology Data Exchange (ETDEWEB)

    Nienhaus, H. (RWE Energie AG, Essen (Germany, F.R.). Abt. Anwendungstechnik)

    1990-12-01

    In this article, the content of the new DIN/VDE draft version, which is valid for the installation of floor storage heating systems floor direct heating systems and ceiling heating systems in residential buildings and building with comparable requirements as well as of surface heating systems outdoors, is presented explanied and commented. As a conclusion, all essential standards, guidelines, laws, regulations and leaflets focusing on 'electric surface heating systems' are listed systematically. (orig.).

  17. The interpretation of the figure of the prophet Jonah by Michelangelo on the ceiling of the sistine chapel: anatomical urological vision

    Directory of Open Access Journals (Sweden)

    Leonardo Oliveira Reis

    2012-06-01

    Full Text Available PURPOSE:A detailed analysis in the iconography and pictorial appearance of the scene of the "Prophet Jonah" painted by the artist Michelangelo Buonarroti (1475-1564 on the ceiling of the Sistine Chapel between the years 1508 and 1512. MATERIALS AND METHODS:Literature review on the Italian Renaissance period and the life of Michelangelo Buonarroti and analysis of historical aspects of the evolution of studies of human anatomy in this period and the works of the artist. RESULTS:A comparative analysis of the representation of the figure of the fish on the left thigh of "Jonah" with a cross section of penis shows a curious similarity. The pictorial and iconographic analysis reveals an intensity of light on the pubic area and the position of the prophet with the legs spread apart and left hand placed on this region. A tube-shaped cloth covers the region and the angel at the side seems to be looking at this anatomical region of "Jonah". In fact, sets of iconographic and pictorial relate to the deciphered code. CONCLUSIONS: This description helps to confirm the relationship of the Renaissance art with the human anatomy; science has been much studied in this period. The design of a cross section of the penis is revealed with the two cavernous bodies with the septum between them and the spongy body. Considering the circumstances in which Michelangelo had painted, subjectivity was fundamental due to religious motivations added to the vigorous implications of a limited scientific knowledge typical of that era.

  18. Regional Reference Center on Drugs and Associated Vulnerabilities - Ceilândia College/University of Brasília

    Directory of Open Access Journals (Sweden)

    Flávia Mazitelli de Oliveira

    2015-03-01

    Full Text Available Introduction: the purpose of the creation of the Regional Reference Center on Drugs and Associated Vulnerabilities of Ceilândia College/University of Brasília was born from the recognition of drug abuse as a major public health problem in Brazil. This importance is reinforced when focus is placed on specific regions of Brazil, such as the Midwest, where this and other vulnerabilities have become even more obvious and, therefore, most in need for actions aimed at addressing these difficulties. Objectives: to empower workers of the network of attention to drug users in the municipalities of Águas Lindas de Goiás, Valparaíso de Goiás, Luziânia and Brazlândia. Methods: mapping of territories, creation and consolidation of the network of pacts with leaders and health services. The courses were organized according to the crash course model, role-play and supervisions and local discussions. Evaluation was divided into two phases: prior to and after the course. Results: it was possible to realize that the strategies employed suited several group demands and the methodology has been extremely favorable, as it has allowed the group to show active participation, bringing the debate close to the reality of the services. The project team was strengthened, becoming a permanent group, creating several Regional Reference Center developments. Conclusion: this experience has demonstrated the crucial importance of the mapping of the territory, the creation of a network of agreements, the intersectoral approach, and the constant dialogue for the effectiveness of a proposal for continuing education.

  19. How to ask about patient satisfaction? The visual analogue scale is less vulnerable to confounding factors and ceiling effect than a symmetric Likert scale.

    Science.gov (United States)

    Voutilainen, Ari; Pitkäaho, Taina; Kvist, Tarja; Vehviläinen-Julkunen, Katri

    2016-04-01

    To study the effects of scale type (visual analogue scale vs. Likert), item order (systematic vs. random), item non-response and patient-related characteristics (age, gender, subjective health, need for assistance with filling out the questionnaire and length of stay) on the results of patient satisfaction surveys. Although patient satisfaction is one of the most intensely studied issues in the health sciences, research information about the effects of possible instrument-related confounding factors on patient satisfaction surveys is scant. A quasi-experimental design was employed. A non-randomized sample of 150 surgical patients was gathered to minimize possible alterations in care quality. Data were collected in May-September 2014 from one tertiary hospital in Finland using the Revised Humane Caring Scale instrument. New versions of the instrument were created for the present purposes. In these versions, items were either in a visual analogue format or Likert-scaled, in systematic or random order. The data were analysed using an analysis of covariance and a paired samples t-test. The visual analogue scale items were less vulnerable to bias from confounding factors than were the Likert-scaled items. The visual analogue scale also avoided the ceiling effect better than Likert and the time needed to complete the visual analogue scale questionnaire was 28% shorter than that needed to complete the Likert-scaled questionnaire. The present results supported the use of visual analogue scale rather than Likert scaling in patient satisfaction surveys and stressed the need to account for as many potential confounding factors as possible. © 2015 John Wiley & Sons Ltd.

  20. Cortex shatters the glass ceiling.

    Science.gov (United States)

    Au, Edmund; Fishell, Gord

    2008-11-06

    Recreating developmental structures in vitro has been a primary challenge for stem cell biologists. Recent studies in Cell Stem Cell (Eiraku et al., 2008) and Nature (Gaspard et al., 2008) demonstrate that embryonic stem cells can recapitulate early cortical development, enabling them to generate specific cortical subtypes.

  1. Growing Crystals on the Ceiling.

    Science.gov (United States)

    Christman, Robert A.

    1980-01-01

    Described is a method of studying growing crystals in a classroom utilizing a carrousel projector standing vertically. A saturated salt solution is placed on a slide on the lens of the projector and the heat from the projector causes the water to evaporate and salt to crystalize. (Author/DS)

  2. Participação popular em saúde: um estudo sobre o conselho regional de saúde de Ceilândia, Distrito Federal-Brasil

    Directory of Open Access Journals (Sweden)

    Andrecinda Rocha de Morais Pina

    2016-03-01

    Full Text Available Introdução: a questão da participação popular para o exercício do controle social do Sistema Único de Saúde é importante para o debate da política de saúde no Brasil e, conforme estabelecido na Lei Orgânica da Saúde de 1990. Essa participação deve ser realizada por meio dos conselhos e conferências de saúde. Este artigo discute a participação popular em saúde no Conselho Regional de Saúde de Ceilândia, Distrito Federal, em torno do exercício do controle social exercido pelos conselheiros. Teve por objetivo geral entender como se dá a participação social no Conselho Regional de Saúde de Ceilândia na gestão 2010-2011. Metodologia: utilizou-se uma abordagem metodológica qualiquantitativa, com procedimento de análise documental. Resultados: a maioria dos assuntos pautados foi proposta pelo segmento gestor. Os itens em discussão revelaram que os interesses dos usuários e trabalhadores permearam com mais frequência os debates. Conclusão: concluiu que o Conselho Regional de Saúde de Ceilândia é um fórum político legítimo e atuante, com atuação decisiva nas deliberações das ações e serviços de saúde a nível local

  3. Calculation of illuminance distribution and its coefficient of variation in infinitely long interior with luminous surface ceiling by Monte Carlo simulation. Monte Carlo simulation ni yoru tenjomen kogen wo motsu mugencho shitsunal no shodo bunpu to hendo keisu

    Energy Technology Data Exchange (ETDEWEB)

    Nagata, M. (The University of Tokushima, Tokushima (Japan))

    1991-01-15

    Monte Carlo simulation (MCS) was applied to the estimation of illuminance distribution in infinitely long interiors which had visual obstructions and luminous surface ceilings, and its coefficient of variation (percentage of standard deviation to average value) was studied. The illuminance distributions obtained by MCS were compared with those calculated by theoretical equations hased on teh contour integration method, and the conservation law of photon bundles was also investigated. As a result, it was concluded that MCS results of direct illuminance distributions agree with those obtained by contour integration method in infinitely long concave interiors which have luminous surface ceilings of various shapes and four visual obstructions. The coefficient of variation varies noteworthily when visual obstructions are located in asymmetrical positions. The uniformity in illuminance distributions is improved by transparent visual obstructions. The conservation law of photon bundles holds well in the concave interiors with transparent visual obstructions. Therefore, it seems that MCS technique for illuminance calculation is a very powerful tool in infinite long concave interior spaces. 19 refs., 11 figs.

  4. Participação popular em saúde: um estudo sobre o conselho regional de saúde de Ceilândia, Distrito Federal-Brasil

    OpenAIRE

    Pina, Andrecinda Rocha de Morais

    2016-01-01

    Introdução: a questão da participação popular para o exercício do controle social do Sistema Único de Saúde é importante para o debate da política de saúde no Brasil e, conforme estabelecido na Lei Orgânica da Saúde de 1990. Essa participação deve ser realizada por meio dos conselhos e conferências de saúde. Este artigo discute a participação popular em saúde no Conselho Regional de Saúde de Ceilândia, Distrito Federal, em torno do exercício do controle social exercido pelos conselheiros. Tev...

  5. Switching from Controlled Ring-Opening Polymerization (cROP) to Controlled Ring-Closing Depolymerization (cRCDP) by Adjusting the Reaction Parameters That Determine the Ceiling Temperature.

    Science.gov (United States)

    Olsén, Peter; Undin, Jenny; Odelius, Karin; Keul, Helmut; Albertsson, Ann-Christine

    2016-12-12

    Full control over the ceiling temperature (T c ) enables a selective transition between the monomeric and polymeric state. This is exemplified by the conversion of the monomer 2-allyloxymethyl-2-ethyl-trimethylene carbonate (AOMEC) to poly(AOMEC) and back to AOMEC within 10 h by controlling the reaction from conditions that favor ring-opening polymerization (T c > T 0 ) (where T 0 is the reaction temperature) to conditions that favor ring-closing depolymerization (T c < T 0 ). The ring-closing depolymerization (RCDP) mirrors the polymerization behavior with a clear relation between the monomer concentration and the molecular weight of the polymer, indicating that RCDP occurs at the chain end. The T c of the polymerization system is highly dependent on the nature of the solvent, for example, in toluene, the T c of AOMEC is 234 °C and in acetonitrile T c = 142 °C at the same initial monomer concentration of 2 M. The control over the monomer to polymer equilibrium sets new standards for the selective degradation of polymers, the controlled release of active components, monomer synthesis and material recycling. In particular, the knowledge of the monomer to polymer equilibrium of polymers in solution under selected environmental conditions is of paramount importance for in vivo applications, where the polymer chain is subjected to both high dilution and a high polarity medium in the presence of catalysts, that is, very different conditions from which the polymer was formed.

  6. BREAKING THE GLASS CEILING FEMALE ENTREPRENEURSHIP

    Directory of Open Access Journals (Sweden)

    Ghitulete Andrada

    2010-12-01

    Full Text Available Specialists claim that the only certitude of the XXIst century is change, as these decades have been marked by the fastest and most spectacular changes in the history of human kind. Dfficult to forecast, the transformations that took place can be found in all areas: technical, economic, social, IT, educational, cultural and political. One of the most important, but insufficiently captured and considered changes is represented by the situation of the SMEs in the front line of the development: their transformation into the most dynamic factor and, in this context, the more and more active presence of women in management positions in SMEs. In Romania, The National Agency for SMEs has implemented for the first time a promotion program for entrepreneurship among women managers of the SMEs sector. The program enjoyed a great success and resulted in a big impact in the business community. The program stimulates the growth of women entrepreneur within the business community, the development of the skill and entrepreneur spirit among women and efficient use of the human capital formed by potential women entrepreneur, improving the economical performances of existing enterprises, led by women through the growth of the training of their employees. Other aims are equal access to the knowledge based economy, experience sharing among business women, establishing partnerships and encouraging the will to represent personal interests in the civil society.

  7. Ruutel appeals for compromise on rent ceilings

    Index Scriptorium Estoniae

    2004-01-01

    President Arnold Rüütel kohtus Kadriorus üüri piirmäärade alase avaliku diskussiooni osapooltega ning kutsus neid otsima kõiki rahuldavat varianti. Presidenti nõustava õigusekspertide komisjoni esindaja professor Arno Allmann tutvustas omandireformi eesmärke ja reformi reguleerivate seaduste koostoimet kehtivas õigusloomes

  8. FIRE_AX_PSU_CEIL_MAL

    Data.gov (United States)

    National Aeronautics and Space Administration — First ISCCP Regional Experiment (FIRE) Atlantic Stratocumulus Transition Experiment (ASTEX) Pennsylvania State University (PSU) Malcolm Baldridge Ceilometer Data in...

  9. Harvard and the Academic Glass Ceiling

    Science.gov (United States)

    Drago, Robert

    2007-01-01

    Drew Gilpin Faust was recently appointed president of Harvard University, and is the first female to hold the position. Women now lead half of the eight institutions that make up the Ivy League. But focusing on highly accomplished women such as Faust misses a larger point. Women may be taking faculty positions in record numbers, but most of those…

  10. The Glass Ceiling for Remotely Piloted Aircraft

    Science.gov (United States)

    2013-08-01

    words of one histo- rian, it represented “a fighting machine to which he was deeply wed - ded emotionally, an arm in which he had unshakable faith.”40...from the Holloman wing’s official designation on 25 June 2010, concurrent with the change of command ceremony for Col David Krumm, an F-15 pilot

  11. Research paper no. 18. Trading rules for CO{sub 2} emission permits systems. A proposal for ceilings on quantities and prices; Cahier de recherche no. 18. Regulation des marches de droits d'emission negociables pour le CO{sub 2}. Une proposition de plafonds pour les quantites et pour les prix

    Energy Technology Data Exchange (ETDEWEB)

    Criqui, P.; Viguier, L

    2000-01-01

    Tradable emission permit (TEP) systems for greenhouse gases (GHGs) as they could develop following the Kyoto Protocol - that is if they are limited to Annex B countries and are not bound by exchange regulations - do not appear to be greatly acceptable today, either to the United States or to the European Union. The problem of the uncertainty related to the cost of reducing emissions is strongly highlighted in the United States: in fact, the approach adopted in the Kyoto Protocol, that of quantitative emissions targets, leaves the question of the reduction programme costs wide open. For the European Union, the unregulated TEP system is hardly acceptable because it would not guarantee that the principle of 'supplementarity' adopted in the Kyoto Protocol, that is, the fact that the purchase of permits should be in addition to action taken within each of the Annex B countries. The section two of this paper is an in-depth economic analysis of the european proposal for ''concrete ceilings''. The alternative proposals, formulated in the United States and relating more to permit price ceilings or''trigger price'', are examined in Section 3. After showing that each of the foregoing proposals could have consequences unacceptable to some or others of the parties to the Protocol, Section 4 offers the proposal of a hybrid formula for regulating the rights market. In fact, the main aim of this paper is to show that the implementation of a 'hybrid solution', consisting of limiting the volume of exchanges while at the same time introducing a TEP price ceiling, could provide a market regulation framework effect allowing the benefits of most of the economic advantages to be enjoyed and also having characteristics acceptable to the various parties from an environmental as well as from an international fairness point of view. (A.L.B.)

  12. "No Ceiling on Achievement": Breaking the Glass Ceiling or Hitting a Steel Plate in Urban Schools?

    Science.gov (United States)

    Firth, Ben; Melia, Victoria; Bergan, Dave; Whitby, Lisa

    2014-01-01

    This article, written by a team of research-active teachers who are also senior leaders in a large, urban, comprehensive high school in the North of England, reports on their joint teacher inquiry project. This work has school-wide significance, given recent history, progressing from being graded as a "failing" school by the Office for…

  13. Inventory of atmospheric pollutant emissions in France under the Convention on long-distance transfrontier atmospheric pollution and the European directive on national emission ceilings (NEC) - CEE-NU/NFR and NEC, March 2011

    International Nuclear Information System (INIS)

    Mathias, Etienne; Chang, Jean-Pierre; Fontelle, Jean-Pierre; Allemand, Nadine; Jacquier, Guillaume; Andre, Jean-Marc; Joya, Romain; Deflorenne, Emmanuel; Martinet, Yann; Druart, Ariane; Nicco, Laetitia; Gavel, Antoine; Prouteau, Emilie; Gueguen, Celine; Serveau, Laetitia; Jabot, Julien; Vincent, Julien

    2011-03-01

    This report supplies emissions data, for France, concerning all the substances covered by the different protocols adopted under the Convention on Long Range Transboundary Air Pollution (LRTAP), under the aegis of the United Nations Economic Commission for Europe (UNECE) and by the directive on national emission ceilings (NEC). The substances covered are sulphur dioxide (SO 2 ), nitrogen oxides (NO x ), non-methane volatile organic compounds (NMVOCs), ammonia (NH 3 ), carbon monoxide (CO), total suspended particles (TSP), fine particles (PM 10 and PM 2.5 ), heavy metals (As, Cd, Cr, Cu, Hg, Ni, Pb, Se, Zn) and persistent organic pollutants (POPs) such as dioxins and furans (PCDD/F), specified polycyclic aromatic hydrocarbons (PAHs) compounds (BaP, BbF, BkF, IndPy), polychlorobiphenyls (PCBs) and hexa-chlorobenzene (HCB). Parties to the Convention have to report emissions of these substances annually. Since the edition of march 2010, results are reported in the format UNECE/NFR in accordance with the new specifications set out in the guidelines (ECE/EB.AIR/97 adopted in December 2008) defined by the United Nations Economic Commission for Europe. The results are presented at the national level of aggregation with the NFR nomenclature using 6 sectors and 109 sub-sectors. Conversely, the nomenclature used in the national inventory system to conduct inventories is the CORINAIR/ SNAP 97c nomenclature. A table of correspondence NFR/SNAP 97c is included in this report (cf. annex 10). For the entire period (going back as far as 1980) concerning each substance, estimates provided in the previous inventories have been reviewed and corrected to take into account updated statistics, improved knowledge and possible changes in methodology. Emission trends between the reference year and 2009 show a decline for most substances: - a very sharp decrease (at least 50%) for hexachlorobenzene (99%), lead (98%), dioxins and furans (95%), chromium (94%), zinc (92%), sulphur oxides (90

  14. Female Principals in Education: Breaking the Glass Ceiling in Spain

    Directory of Open Access Journals (Sweden)

    Enrique Javier Diez Gutierrez

    Full Text Available Abstract Spanish schools are characterised by having a high proportion of female staff. However, statistics show that a proportionately higher number of men hold leadership positions. The aim of this study was to analyse the reasons why this is so, and to determine the motivations and barriers that women encounter in attaining and exercising these positions of greater responsibility and power. Questionnaires were administered to 2,022 female teachers, 430 female principals and 322 male principals. In addition, semi-structured interviews were held with 60 female principals, 14 focus group discussions were held with female principals and 16 autobiographical narratives were compiled with female principals and school inspectors. The reasons identified were related to structural aspects linked to the patriarchal worldview that is still dominant in our society and culture. Nevertheless, we also found motivations among women for attaining and exercising leadership roles.

  15. Will women ever break the glass ceiling in medicine?

    Science.gov (United States)

    Achkar, Edgar

    2008-07-01

    Increased attention is being paid to women's working conditions in medicine. Few data are available regarding gender disparity in gastroenterology. It seems, however, that in general women are paid less than men and that their progress in academic practice tends to be slow. The GI community needs to recognize that gender disparity is not an imaginary issue and that action is necessary to attract women to gastroenterology by providing equal opportunities.

  16. Female Perceptions On Employment Equity: Is The Glass Ceiling Cracking?

    Directory of Open Access Journals (Sweden)

    Betsi Van Zyl

    2003-11-01

    Die primêre doelwit van hierdie studie was om vas te stel of daar enige perseptuele verskille tussen geslagsgroepe bestaan ten opsigte van werkgelykheidspraktyke. ’n Steekproef van 4729 deelnemers uit verskillende ondernemings en bedrywe het die Employment Equity Questionnaire voltooi. Die resultate van ’n ANOVA het aangedui dat daar beduidende verskille tussen geslagsgroepe bestaan, maar dat slegs ’n klein gedeelte van die variansie aan perseptuele verskille ten opsigte van werksgelykheidspraktyke toegeskryf kan word. Die instrument beskik dus ook ’n mate van diskriminante geldigheid. Verdere ontledings op itemvlak het aangedui dat daar betekenisvolle verskille tussen geslagsgroepe is, maar dat hierdie verskille nie aan geslagstereotipes toegeskryf kan word nie. Spesifieke werkgelykheidspraktyke is geïdentifiseer wat nadere aandag deur die bestuurskader verdien om geslagsdiskriminasie aan te spreek.

  17. Breaking the glass ceiling: hollow OmniGuide fibers

    Science.gov (United States)

    Johnson, Steven G.; Ibanescu, Mihai; Skorobogatiy, Maksim A.; Weisberg, Ori; Engeness, Torkel D.; Soljacic, Marin; Jacobs, Steven A.; Joannopoulos, John D.; Fink, Yoel

    2002-04-01

    We argue that OmniGuide fibers, which guide light within a hollow core by concentric multilayer films having the property of omnidirectional reflection, have the potential to lift several physical limitations of silica fibers. We show how the strong confinement in OmniGuide fibers greatly suppresses the properties of the cladding materials: even if highly lossy and nonlinear materials are employed, both the intrinsic losses and nonlinearities of silica fibers can be surpassed by orders of magnitude. This feat, impossible to duplicate in an index-guided fiber with existing materials, would open up new regimes for long-distance propagation and dense wavelength-division multiplexing (DWDM). The OmniGuide-fiber modes bear a strong analogy to those of hollow metallic waveguides; from this analogy, we are able to derive several general scaling laws with core radius. Moreover, there is strong loss discrimination between guided modes, depending upon their degree of confinement in the hollow core: this allows large, ostensibly multi-mode cores to be used, with the lowest-loss TE01 mode propagating in an effectively single-mode fashion. Finally, because this TE01 mode is a cylindrically symmetrical ('azimuthally' polarized) singlet state, it is immune to polarization-mode dispersion (PMD), unlike the doubly-degenerate linearly-polarized modes in silica fibers that are vulnerable to birefringence.

  18. The Cracked Glass Ceiling: Equal Work but Unequal Status

    Science.gov (United States)

    Dobele, Angela R.; Rundle-Thiele, Sharyn; Kopanidis, Foula

    2014-01-01

    The achievement of gender equity in universities continues to warrant attention. Globally, universities have much work ahead of them if they are to redress the gender imbalance in senior positions and remuneration rates. To examine this issue, multiple sources of evidence were used to observe teaching and research workload of academic staff…

  19. Teacher Diversity in Canada: Leaky Pipelines, Bottlenecks, and Glass Ceilings

    Science.gov (United States)

    Ryan, James; Pollock, Katina; Antonelli, Fab

    2009-01-01

    This article examines the racial diversity of the teacher population in Canada. In particular, we compare the number of teachers of colour in Canadian elementary and secondary schools from the 2001 and 2006 Census data with the diversity of the student and general populations. We also explore ways to understand the gap between the proportion of…

  20. Karriere, Alltag und Partnerschaft. Strukturen und Implikationen des glass ceiling

    Directory of Open Access Journals (Sweden)

    Hedwig Rudolph

    2007-11-01

    Full Text Available In dem Buch werden zum einen die strukturellen Rahmenbedingungen beleuchtet, mit denen Frauen in Führungspositionen konfrontiert sind, zum anderen ihre Lebensumstände dargestellt – jeweils im Vergleich zu ihren männlichen Kollegen. Im Hinblick auf die dokumentierten durchgängigen Differenzen zuungunsten von Frauen werden politische Gestaltungsvorschläge skizziert.

  1. Circumventing the Imposed Ceiling: Art Education as Resistance Narrative

    Science.gov (United States)

    Rolling, James Haywood, Jr.

    2011-01-01

    This article stems from a story of arts education advocacy in the midst of a bureaucracy that misunderstood the purpose of art education at the launch of a new elementary school. Contemporary visual arts education practices overlap a unique period of change in neighboring social science disciplines, a turn of the tide that involves the embrace of…

  2. 46 CFR 391.2 - Ceiling on deposits.

    Science.gov (United States)

    2010-10-01

    ... such transportation. The arm's length charge shall be determined by applying the principles of section... shall be deducted in accordance with the principles of § 1.861-8 of the Income Tax Regulations of this... the taxation of partners and partnerships), the Internal Revenue Service will recognize, solely for...

  3. 26 CFR 3.2 - Ceiling on deposits.

    Science.gov (United States)

    2010-04-01

    ... such transportation. The arm's length charge shall be determined by applying the principles of section... shall be deducted, in accordance with the principles of § 1.861-8 of the Income Tax Regulations of this... the taxation of partners and partnerships), the Internal Revenue Service will recognize, solely for...

  4. RELIABILITY ANALYSIS OF DOUBLE-LAYER RIBBED CEILING PLATE

    Directory of Open Access Journals (Sweden)

    Cheverda P.P.

    2015-12-01

    Full Text Available The research of the stress-strain state of solid plates and slabs of ribs residential building under the action of the main communication loads. The building is modeled as a spatial finite-element frame with constant stiffness characteristics for the two study options for which using software complex Monomah defined parameters of the stress-strain state. For each option slab by using the complex SCAD specifying the calculation was performed on the effects of edges on its carrying capacity and deflections. Analysis of the study results showed that the magnitude of the stress-strain state of the two options differ significantly. Therefore, the construction of industrial and civil use of precast concrete floor slabs using reinforced edges is more economical due to improved soundproofing properties homes.

  5. Ceiling effect of online user interests for the movies

    Science.gov (United States)

    Ni, Jing; Zhang, Yi-Lu; Hu, Zhao-Long; Song, Wen-Jun; Hou, Lei; Guo, Qiang; Liu, Jian-Guo

    2014-05-01

    Online users' collective interests play an important role for analyzing the online social networks and personalized recommendations. In this paper, we introduce the information entropy to measure the diversity of the user interests. We empirically analyze the information entropy of the objects selected by the users with the same degree in both the MovieLens and Netflix datasets. The results show that as the user degree increases, the entropy increases from the lowest value at first to the highest value and then begins to fall, which indicates that the interests of the small-degree and large-degree users are more centralized, while the interests of normal users are more diverse. Furthermore, a null model is proposed to compare with the empirical results. In a null model, we keep the number of users and objects as well as the user degrees unchangeable, but the selection behaviors are totally random in both datasets. Results show that the diversity of the majority of users in the real datasets is higher than that the random case, with the exception of the diversity of only a fraction of small-degree users. That may because new users just like popular objects, while with the increase of the user experiences, they quickly become users of broad interests. Therefore, small-degree users' interests are much easier to predict than the other users', which may shed some light for the cold-start problem.

  6. Karriere, Alltag und Partnerschaft. Strukturen und Implikationen des glass ceiling Book cover Career, Daily Life, and Partnership: Structures and Implications of the Glass Ceiling

    Directory of Open Access Journals (Sweden)

    Hedwig Rudolph

    2007-11-01

    Full Text Available In dem Buch werden zum einen die strukturellen Rahmenbedingungen beleuchtet, mit denen Frauen in Führungspositionen konfrontiert sind, zum anderen ihre Lebensumstände dargestellt – jeweils im Vergleich zu ihren männlichen Kollegen. Im Hinblick auf die dokumentierten durchgängigen Differenzen zuungunsten von Frauen werden politische Gestaltungsvorschläge skizziert.This book illuminates the structural and external factors confronting women in executive positions and examines their living conditions in comparison to their male colleagues. The book sketches concepts for political change with respect to the continuing differences that have been documented as harming women.

  7. Inventory of atmospheric pollutant emissions in France under the Convention on long-distance transfrontier atmospheric pollution and the European directive on national emission ceilings (NEC) - CEE-NU/NFR and NEC, March 2011; Inventaire des emissions de polluants atmospheriques en France au titre de la convention sur la pollution atmospherique transfrontaliere a longue distance et de la directive Europeenne relative aux plafonds d'emissions nationaux (NEC) - CEE-NU/NFR et NEC, mars 2011

    Energy Technology Data Exchange (ETDEWEB)

    Mathias, Etienne; Chang, Jean-Pierre; Fontelle, Jean-Pierre; Allemand, Nadine; Jacquier, Guillaume; Andre, Jean-Marc; Joya, Romain; Deflorenne, Emmanuel; Martinet, Yann; Druart, Ariane; Nicco, Laetitia; Gavel, Antoine; Prouteau, Emilie; Gueguen, Celine; Serveau, Laetitia; Jabot, Julien; Vincent, Julien

    2011-03-15

    This report supplies emissions data, for France, concerning all the substances covered by the different protocols adopted under the Convention on Long Range Transboundary Air Pollution (LRTAP), under the aegis of the United Nations Economic Commission for Europe (UNECE) and by the directive on national emission ceilings (NEC). The substances covered are sulphur dioxide (SO{sub 2}), nitrogen oxides (NO{sub x}), non-methane volatile organic compounds (NMVOCs), ammonia (NH{sub 3}), carbon monoxide (CO), total suspended particles (TSP), fine particles (PM{sub 10} and PM{sub 2.5}), heavy metals (As, Cd, Cr, Cu, Hg, Ni, Pb, Se, Zn) and persistent organic pollutants (POPs) such as dioxins and furans (PCDD/F), specified polycyclic aromatic hydrocarbons (PAHs) compounds (BaP, BbF, BkF, IndPy), polychlorobiphenyls (PCBs) and hexa-chlorobenzene (HCB). Parties to the Convention have to report emissions of these substances annually. Since the edition of march 2010, results are reported in the format UNECE/NFR in accordance with the new specifications set out in the guidelines (ECE/EB.AIR/97 adopted in December 2008) defined by the United Nations Economic Commission for Europe. The results are presented at the national level of aggregation with the NFR nomenclature using 6 sectors and 109 sub-sectors. Conversely, the nomenclature used in the national inventory system to conduct inventories is the CORINAIR/ SNAP 97c nomenclature. A table of correspondence NFR/SNAP 97c is included in this report (cf. annex 10). For the entire period (going back as far as 1980) concerning each substance, estimates provided in the previous inventories have been reviewed and corrected to take into account updated statistics, improved knowledge and possible changes in methodology. Emission trends between the reference year and 2009 show a decline for most substances: - a very sharp decrease (at least 50%) for hexachlorobenzene (99%), lead (98%), dioxins and furans (95%), chromium (94%), zinc (92

  8. From beneath glass ceilings to the top of glass cliffs: How Finnish women identify as leaders

    OpenAIRE

    Nataraj, Shalini

    2010-01-01

    Endast sammandrag. Inbundna avhandlingar kan sökas i Helka-databasen (http://www.helsinki.fi/helka). Elektroniska kopior av avhandlingar finns antingen öppet på nätet eller endast tillgängliga i bibliotekets avhandlingsterminaler. Only abstract. Paper copies of master’s theses are listed in the Helka database (http://www.helsinki.fi/helka). Electronic copies of master’s theses are either available as open access or only on thesis terminals in the Helsinki University Library. Vain tiivi...

  9. Shattering the "Glass Ceiling" in Journalism Education: Sex Discrimination in Promotion and Tenure.

    Science.gov (United States)

    Grunig, Larissa Schneider

    An informal study examined the disparate treatment in tenure and promotion decisions women journalism educators may receive because of their sex, as well as the adverse impact of such discriminatory patterns and practices on the women themselves, on their departments, and on their students. To gather information related to possible instances of…

  10. Hour-glass ceilings: Work-hour thresholds, gendered health inequities.

    Science.gov (United States)

    Dinh, Huong; Strazdins, Lyndall; Welsh, Jennifer

    2017-03-01

    Long workhours erode health, which the setting of maximum weekly hours aims to avert. This 48-h limit, and the evidence base to support it, has evolved from a workforce that was largely male, whose time in the labour force was enabled by women's domestic work and care giving. The gender composition of the workforce has now changed, and many women (as well as some men) combine care-giving with paid work, a change viewed as fundamental for gender equality. However, it raises questions on the suitability of the work time limit and the extent it is protective of health. We estimate workhour-mental health thresholds, testing if they vary for men and women due to gendered workloads and constraints on and off the job. Using six waves of data from a nationally representative sample of Australian adults (24-65 years), surveyed in the Household Income Labour Dynamics of Australia Survey (N = 3828 men; 4062 women), our study uses a longitudinal, simultaneous equation approach to address endogeneity. Averaging over the sample, we find an overall threshold of 39 h per week beyond which mental health declines. Separate curves then estimate thresholds for men and women, by high or low care and domestic time constraints, using stratified and pooled samples. We find gendered workhour-health limits (43.5 for men, 38 for women) which widen further once differences in resources on and off the job are considered. Only when time is 'unencumbered' and similar time constraints and contexts are assumed, do gender gaps narrow and thresholds approximate the 48-h limit. Our study reveals limits to contemporary workhour regulation which may be systematically disadvantaging women's health. Copyright © 2017 Elsevier Ltd. All rights reserved.

  11. Plant science and agricultural productivity: why are we hitting the yield ceiling?

    Science.gov (United States)

    de Bossoreille de Ribou, Stève; Douam, Florian; Hamant, Olivier; Frohlich, Michael W; Negrutiu, Ioan

    2013-09-01

    Trends in conventional plant breeding and in biotechnology research are analyzed with a focus on production and productivity of individual organisms. Our growing understanding of the productive/adaptive potential of (crop) plants is a prerequisite to increasing this potential and also its expression under environmental constraints. This review concentrates on growth rate, ribosome activity, and photosynthetic rate to link these key cellular processes to plant productivity. Examples of how they may be integrated in heterosis, organ growth control, and responses to abiotic stresses are presented. The yield components in rice are presented as a model. The ultimate goal of research programs, that concentrate on yield and productivity and integrating the panoply of systems biology tools, is to achieve "low input, high output" agriculture, i.e. shifting from a conventional "productivist" agriculture to an efficient sustainable agriculture. This is of critical, strategic importance, because the extent to which we, both locally and globally, secure and manage the long-term productive potential of plant resources will determine the future of humanity. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

  12. DNA Statistical Evidence and the Ceiling Principle: Science or Science Fiction

    Science.gov (United States)

    1994-03-01

    Analysis, in PROC. INT’L SYMP. ON FORENSIC ASPECTS DNA ANALYsIs 121, 124 (1989). 80. G.H. Hardy, Mendelian Proportions in a Mixed Population, 28...E. Starrs) ("All of this is familiar turf to biologists since the same Mendelian principles and the same establishment of population frequencies... heritage . Accordingly, the ethnic background of an individual suspect should be ignored in estimating the likelihood of a random match." NRC REPORT, supra

  13. Breaking through the Glass Ceiling: Consumers in Mental Health Organisations' Hierarchies.

    Science.gov (United States)

    Scholz, Brett; Bocking, Julia; Happell, Brenda

    2017-05-01

    Contemporary mental health policies call for consumers to be engaged in all levels of mental health service planning, implementation, and delivery. Critical approaches to traditional healthcare hierarchies can effectively challenge barriers to better engagement with consumers in mental health organisations. This qualitative exploratory study analyses how particular strategies for consumer leadership facilitate or hinder relationships between consumers and mental health services, and how these strategies influence hierarchical structures. Fourteen participants from a range of mental health organisations were interviewed. These interviews were analysed using thematic analytic and discursive psychological techniques. The findings highlight several benefits of having consumers within mental health organisational hierarchies, and elaborate on ways that employees within mental health services can support integration of consumers into existing hierarchies. Specific barriers to consumers in hierarchies are discussed, including a lack of clarity of structures and roles within hierarchies, and resistance to consumers reaching the highest levels of leadership within organisations. Alternative hierarchical models which privilege consumers' control over resources and power are also discussed. Mental health organisations are encouraged to integrate consumer leaders into their hierarchical structures to improve their organisational offerings, their reputation, and their service innovation.

  14. To shatter the glass ceiling in healthcare management: who supports affirmative action and why?

    Science.gov (United States)

    Weil, Peter A; Mattis, Mary C

    2003-11-01

    We examined the findings of a recent national survey of healthcare executives that showed 90% of women but only 53% of men favoured efforts to increase the proportion of women in senior healthcare management positions. Using the theories of relative deprivation and social identity, we tested hypotheses to suggest the background, work characteristics and attitudes about existing discriminatory practices in their own organizations that correlate with respondents' views about affirmative action for women. Some support is evidenced for the two theories and explanations are suggested to account for apparent anomalies.

  15. Configurational entropy measurements in extremely supercooled liquids that break the glass ceiling

    Science.gov (United States)

    Berthier, Ludovic; Charbonneau, Patrick; Coslovich, Daniele; Ninarello, Andrea; Ozawa, Misaki; Yaida, Sho

    2017-10-01

    Liquids relax extremely slowly on approaching the glass state. One explanation is that an entropy crisis, because of the rarefaction of available states, makes it increasingly arduous to reach equilibrium in that regime. Validating this scenario is challenging, because experiments offer limited resolution, while numerical studies lag more than eight orders of magnitude behind experimentally relevant timescales. In this work, we not only close the colossal gap between experiments and simulations but manage to create in silico configurations that have no experimental analog yet. Deploying a range of computational tools, we obtain four estimates of their configurational entropy. These measurements consistently confirm that the steep entropy decrease observed in experiments is also found in simulations, even beyond the experimental glass transition. Our numerical results thus extend the observational window into the physics of glasses and reinforce the relevance of an entropy crisis for understanding their formation.

  16. Some Take the Glass Escalator, Some Hit the Glass Ceiling? Career Consequences of Occupational Sex Segregation.

    Science.gov (United States)

    Hultin, Mia

    2003-01-01

    Analysis of Swedish longitudinal data (1,535 men, 1,584 women) showed that men in female-dominated occupations have substantially better internal promotion opportunities than equally qualified women. In male-dominated occupations, men and women have equal internal promotion chances. Results suggest a "glass escalator" advantage for men…

  17. Nothing Changes, Really: Why Women Who Break Through the Glass Ceiling End Up Reinforcing It

    NARCIS (Netherlands)

    Faniko, Klea; Ellemers, Naomi; Derks, Belle; Lorenzi-Cioldi, Fabio

    Two correlational studies conducted in Switzerland (N = 222) and Albania (N = 156) explained the opposition of female managers to gender quotas by examining the origins and consequences of the “Queen Bee (QB)-phenomenon,” whereby women who have been successful in male-dominated organizations do not

  18. Breaking the Stained Glass Ceiling: Women's Collaborative Leadership Style as a Model for Theological Education

    Science.gov (United States)

    Lowe, Mary E.

    2011-01-01

    One of the prevailing notions within American culture is the idea that women are prevalent in leadership positions. The reality, however, is that while women are slightly more than 50% of the population, they are underrepresented in leadership. Fewer than 10% of chief executive officers in theological education are women. Traditional roles in…

  19. Overcoming the glass ceiling: views from the cellar and the roof.

    Science.gov (United States)

    McCrady, Barbara S

    2012-12-01

    Women's experiences as professionals and behavior therapists have changed considerably in the past 40 years. The author describes early challenges and experiences of discrimination as a young female professional. Although women's opportunities have improved considerably, women still experience unique career challenges and choices. The author provides some suggestions for women's career development.

  20. Management of organizational communication in The Netherlands: glass ceiling and encroachment

    NARCIS (Netherlands)

    van Ruler, A.A.; de Lange, R.; Schorr, A.; Campbell, W.; Schenk, M.

    2003-01-01

    In the practical and theoretical literature a new field is apparently emerging, focusing on the co-ordination and steering of all marketing communications, public relations, and internal communications at a strategic level known as Management of (Organizational/Corporate) Communication. These

  1. Breaking the glass ceiling: Configurational entropy measurements in extremely supercooled liquids

    Science.gov (United States)

    Berthier, Ludovic

    Liquids relax extremely slowly on approaching the glass state. One explanation is that an entropy crisis, due to the rarefaction of available states, makes it increasingly arduous to reach equilibrium in that regime. Validating this scenario is challenging, because experiments offer limited resolution, while numerical studies lag more than eight orders of magnitude behind experimentally-relevant timescales. In this work we not only close the colossal gap between experiments and simulations but manage to create in-silico configurations that have no experimental analog yet. Deploying a range of computational tools, we obtain four independent estimates of their configurational entropy. These measurements consistently indicate that the steep entropy decrease observed in experiments is found in simulations even beyond the experimental glass transition. Our numerical results thus open a new observational window into the physics of glasses and reinforce the relevance of an entropy crisis for understanding their formation.

  2. Is the "glass ceiling" a real problem for women physicists in Argentina?

    Science.gov (United States)

    Frechero, Marisa A.; Amador, Ana; Pastor, Antonio J. Ramirez; Tamarit, Francisco

    2015-12-01

    We evaluate the distribution of female physicists in the Argentinean workforce, analyzing the distribution of women at different levels of education and research using several indicators. Although important imbalances still occur, our findings are encouraging and the distribution of female physicists seems to be changing for the better.

  3. The glass ceiling is not fragile: A response to Odum (2000).

    Science.gov (United States)

    McSweeney, F K; Swindell, S

    2001-01-01

    Odum (2000) criticized our recent conclusions about the participation of women in the experimental analysis of behavior (McSweeney & Swindell, 1998). We address her criticisms here. We argue against the need for statistical tests. We show that our conclusions still apply to all journals except the Journal of the Experimental Analysis of Behavior even when we include the senior editorial staff along with members of the editorial board. We argue that the data that Odum provides to show gender equity are limited, inconsistent with past findings, and hard to interpret in the absence of other data. Finally, we argue that Odum failed to address our most convincing argument for gender inequity and misinterpreted our suggestions for improvements.

  4. Reflections on the glass ceiling: women in the experimental analysis of behavior.

    Science.gov (United States)

    Odum, A L

    2000-01-01

    McSweeney and Swindell (1998) sought to determine whether men and women are treated equitably in the experimental analysis of behavior. They purported to show that women participate less in the Journal of the Experimental Analysis of Behavior than in similar journals and that the participation of women decreases with increases in selectivity. Their data were difficult to interpret, however, because they did not present the variability in the mean data drawn from different individuals over time. My analyses were not in accord with their conclusions. When the percentage of associate editors who are women was considered along with the mean percentages McSweeney and Swindell reported for other measures, participation did not systematically decrease with increases in selectivity in recent years. As quantified in terms of their number of publications in the Journal of the Experimental Analysis of Behavior, women who were editorial board members and associate editors were not more highly selected than their male counterparts. Finally, in the recent period from 1996 to 1998, although women submitted fewer manuscripts to the journal, rejection ratios did not differ for men and women. Efforts to increase the participation of women in the experimental analysis of behavior may best be directed toward recruitment and retention rather than some of the suggestions proposed by McSweeney and Swindell (1998), which could inadvertently create different standards for women's work.

  5. Nothing Changes, Really: Why Women Who Break Through the Glass Ceiling End Up Reinforcing It.

    Science.gov (United States)

    Faniko, Klea; Ellemers, Naomi; Derks, Belle; Lorenzi-Cioldi, Fabio

    2017-05-01

    Two correlational studies conducted in Switzerland ( N = 222) and Albania ( N = 156) explained the opposition of female managers to gender quotas by examining the origins and consequences of the "Queen Bee (QB)-phenomenon," whereby women who have been successful in male-dominated organizations do not support the advancement of junior women. Results disconfirm previous accounts of the QB-phenomenon as indicating competitiveness among women. Instead, the tendency of women managers to consider themselves as different from other women, and their opposition to gender quotas, emerged when junior women were addressed but not when they considered their direct competitors, other women managers. Personal sacrifices women managers reported having made for career success predicted self-distancing from junior women and opposition to gender quotas targeting these women. We provide a more nuanced picture of what the QB-response is really about, explaining why women managers oppose quotas for junior women, while supporting quotas for women in the same rank.

  6. Realtime ultrasound guided percutaneous tracheostomy in emergency setting: the glass ceiling has been broken.

    Science.gov (United States)

    Ravi, Parli Raghavan; Vijai, M N; Shouche, Sachin

    2017-01-01

    In recent years ultrasound guided percutaneous tracheostomy (USPCT) has become a routine practice in critical care units. Its safety and superiority over conventional percutaneous tracheostomy and bronchoscopic guided PCT is proven to be non-inferior in elective cases. However its role in emergency percutaneous tracheostomy has never been studied, since percutaneous tracheostomy itself remains an enigma in accessing emergency airway. There is no report of use of ultrasound guided percutaneous tracheostomy in emergency setting so far in the literature. We report our early experience with USPCT in emergency setting. Sixteen adult patients who required access to an emergency surgical airway after failure to accomplish emergency oro-tracheal intubation were the study population. Their airway was accessed by USPCT. Recorded data included clinical and demographic data including time taken to perform the procedure and complications. Short term and long term follow ups for a period of 2 years were done for the survivors. Twelve male and four female patients underwent the procedure and the average time of the procedure was 3.6 min with no failures nor conversions to surgical tracheostomy and no complications. The average oxygen saturation was 86% and average Glasgow coma scale was 8.4. This time period included the oxygen insufflation time. 10 patients were decannulated while six patients died due to the pathology of the disease itself. There were no complications in either short term or long term follow up. USPCT has a definitive role in emergency both in trauma and non-trauma setting. It is safe, feasible and faster in experienced hands. Use of USPCT in emergency setting has further narrowed the list of contraindications of percutaneous tracheostomy.

  7. Spiraling through the Glass Ceiling: Seven Critical Lessons for Negotiating a Leadership Position in Higher Education

    Science.gov (United States)

    Crutcher, Ronald A.

    2006-01-01

    In this article, the author discusses seven critical lessons for navigating a leadership position in higher education. The author focuses on developing a personal means of remaining centered regardless of circumstances or situations as well as building an ethical foundation for one's work. He uses spiraling as a metaphor to describe his own…

  8. Women in the World of Corporate Business: Looking at the Glass Ceiling

    Science.gov (United States)

    Berry, Priscilla; Franks, Tommy J.

    2010-01-01

    From a review of some of the literature and a brief compiling of statistics on women in positions of leadership and power, and with a quick look at the life and work of some contemporary women who have thought about and lived the life of corporate leadership, it is clear that women have made small progress into positions of power and influence.…

  9. Why Is There a Glass Ceiling for Threading Based Protein Structure Prediction Methods?

    Science.gov (United States)

    Skolnick, Jeffrey; Zhou, Hongyi

    2017-04-20

    Despite their different implementations, comparison of the best threading approaches to the prediction of evolutionary distant protein structures reveals that they tend to succeed or fail on the same protein targets. This is true despite the fact that the structural template library has good templates for all cases. Thus, a key question is why are certain protein structures threadable while others are not. Comparison with threading results on a set of artificial sequences selected for stability further argues that the failure of threading is due to the nature of the protein structures themselves. Using a new contact map based alignment algorithm, we demonstrate that certain folds are highly degenerate in that they can have very similar coarse grained fractions of native contacts aligned and yet differ significantly from the native structure. For threadable proteins, this is not the case. Thus, contemporary threading approaches appear to have reached a plateau, and new approaches to structure prediction are required.

  10. Why marathon migrants get away with high metabolic ceilings: towards an ecology of physiological restraint

    NARCIS (Netherlands)

    Piersma, T.

    2011-01-01

    Animals usually are not willing to perform at levels, or for lengths of time, of which they should be maximally capable. In stating this, exercise performance and inferred capacity are gauged with respect to body size and the duration of particular levels of energy expenditure. In such relative

  11. The Harris hip score: Do ceiling effects limit its usefulness in orthopedics?

    NARCIS (Netherlands)

    Wamper, Kim E.; Sierevelt, Inger N.; Poolman, Rudolf W.; Bhandari, Mohit; Haverkamp, Daniël

    2010-01-01

    The Harris hip score (HHS), a disease-specific health status scale that is frequently used to measure the outcome of total hip arthroplasty, has never been validated properly. A questionnaire is suitable only when all 5 psychometric properties are of sufficient quality. We questioned the usefulness

  12. Revisiting the Glass Ceiling: Career Progression for Women in the Hotel Industry

    Directory of Open Access Journals (Sweden)

    Zoe Ho, Ph.D.

    2013-01-01

    Full Text Available Despite the large number of women who enter the hospitality industry, there are relatively few hotel general managers who are female. Why? An ongoing project is exploring this topic through interviews of female hotel managers. This article provides representative excerpts from a few of the early interviews in Boston, which provide some understanding about the attitudes of such women toward their professional environment.

  13. The gender pay gap in top corporate jobs in Denmark - glass ceilings, sticky floors or both?

    DEFF Research Database (Denmark)

    Smith, Nina; Smith, Valdemar; Verner, Mette

    2011-01-01

    Purpose: This study analyses the gender pay gap among CEOs, VPs and potential top executives. We estimate how much of the gap which is explained by differences in individual characteristics and how much can be explained by firm characteristics and discriminatory processes. Design......: For VP and potential top executives, the estimated gap increased during the period 1996-2005 while for the small and selected group of CEOs, the corrected gender gap slightly decreased. Further, for this group we find that controlling for unobserved individual characteristics the estimated gender...... compensation gap is larger than the raw gender compensation gap. We interpret this result as an indication that the very few females who reach top positions in private firms are a highly selected sample who on average deviates from their male colleagues with respect to unobserved factors as motivation...

  14. Is there a glass ceiling for highly cited scientists at the top of research universities?

    Science.gov (United States)

    Ioannidis, John P A

    2010-12-01

    University leaders aim to protect, shape, and promote the missions of their institutions. I evaluated whether top highly cited scientists are likely to occupy these positions. Of the current leaders of 96 U.S. high research activity universities, only 6 presidents or chancellors were found among the 4009 U.S. scientists listed in the ISIHighlyCited.com database. Of the current leaders of 77 UK universities, only 2 vice-chancellors were found among the 483 UK scientists listed in the same database. In a sample of 100 top-cited clinical medicine scientists and 100 top-cited biology and biochemistry scientists, only 1 and 1, respectively, had served at any time as president of a university. Among the leaders of 25 U.S. universities with the highest citation volumes, only 12 had doctoral degrees in life, natural, physical or computer sciences, and 5 of these 12 had a Hirsch citation index m universities is limited. This could have consequences for the research and overall mission of universities.

  15. The Lavender Ceiling atop the Global Closet: Human Resource Development and Lesbian Expatriates

    Science.gov (United States)

    Gedro, Julie

    2010-01-01

    This literature review will examine international assignments as career development opportunities and uncover multiple issues and considerations with respect to lesbians and international assignments. There is a clear interest in the fields of management and human resource management in the privileges, challenges, and opportunities of…

  16. Transition Communities and the Glass Ceiling of Environmental Sustainability Policies at Three Universities

    Science.gov (United States)

    Pardellas Santiago, Miguel; Meira Cartea, Pablo; Iglesias da Cunha, Lucía

    2017-01-01

    Purpose: This paper deals with the experiences of three European universities that have implemented transition initiatives, using the Transition Network's methodology to promote their sustainability plans. The Transition Communities' model for change is presented from a socio-educational perspective as an effective methodology for encouraging…

  17. DNA Statistical Evidence and the "Ceiling Principle: Science or Science Fiction

    National Research Council Canada - National Science Library

    Dribben, Douglas A

    1994-01-01

    ...) statistical evidence. Use of DNA evidence is becoming widespread in criminal cases. DNA evidence has generally been admitted by state and federal courts under the test for "novel scientific evidence...

  18. The Joint Campaign Glass Ceiling - Successfully Breaking the Transition Phase Barrier

    National Research Council Canada - National Science Library

    Apland, Steven

    2002-01-01

    ...., meeting the political end state) remains the key barrier to the joint campaign. Toward the end of decisive military operations, nonmilitary instruments of power become the leading effort in the operational arena...

  19. The analysis of glass ceiling phenomenon in the promotion of women’s abilities in organizations

    OpenAIRE

    Mahboubeh Soleymanpour Omran; Homa Alizadeh; Behrang Esmaeeli

    2015-01-01

    Women constitute almost half of the workforce of a society and there has been considerable increase in women employment rate in recent years. However, their promotion to management positions has not been very tangible. Gender inequalities in the workplace especially in the domain of management have resulted in the lack of efficient use of potential capacities of women. Even though the previous research demonstrates that women are not less ambitious than men, wrong beliefs which attribute mana...

  20. Looking through the Glass Ceiling: A Qualitative Study of STEM Women’s Career Narratives

    Science.gov (United States)

    Amon, Mary J.

    2017-01-01

    Although efforts have been directed toward the advancement of women in science, technology, engineering, and mathematics (STEM) positions, little research has directly examined women’s perspectives and bottom-up strategies for advancing in male-stereotyped disciplines. The present study utilized Photovoice, a Participatory Action Research method, to identify themes that underlie women’s experiences in traditionally male-dominated fields. Photovoice enables participants to convey unique aspects of their experiences via photographs and their in-depth knowledge of a community through personal narrative. Forty-six STEM women graduate students and postdoctoral fellows completed a Photovoice activity in small groups. They presented photographs that described their experiences pursuing leadership positions in STEM fields. Three types of narratives were discovered and classified: career strategies, barriers to achievement, and buffering strategies or methods for managing barriers. Participants described three common types of career strategies and motivational factors, including professional development, collaboration, and social impact. Moreover, the lack of rewards for these workplace activities was seen as limiting professional effectiveness. In terms of barriers to achievement, women indicated they were not recognized as authority figures and often worked to build legitimacy by fostering positive relationships. Women were vigilant to other people’s perspectives, which was costly in terms of time and energy. To manage role expectations, including those related to gender, participants engaged in numerous role transitions throughout their day to accommodate workplace demands. To buffer barriers to achievement, participants found resiliency in feelings of accomplishment and recognition. Social support, particularly from mentors, helped participants cope with negative experiences and to envision their future within the field. Work-life balance also helped participants find meaning in their work and have a sense of control over their lives. Overall, common workplace challenges included a lack of social capital and limited degrees of freedom. Implications for organizational policy and future research are discussed. PMID:28265251

  1. Looking through the Glass Ceiling: A Qualitative Study of STEM Women?s Career Narratives

    OpenAIRE

    Amon, Mary J.

    2017-01-01

    Although efforts have been directed toward the advancement of women in science, technology, engineering, and mathematics (STEM) positions, little research has directly examined women’s perspectives and bottom-up strategies for advancing in male-stereotyped disciplines. The present study utilized Photovoice, a Participatory Action Research method, to identify themes that underlie women’s experiences in traditionally male-dominated fields. Photovoice enables participants to convey unique aspect...

  2. Looking through the Glass Ceiling: A Qualitative Study of STEM Women's Career Narratives.

    Science.gov (United States)

    Amon, Mary J

    2017-01-01

    Although efforts have been directed toward the advancement of women in science, technology, engineering, and mathematics (STEM) positions, little research has directly examined women's perspectives and bottom-up strategies for advancing in male-stereotyped disciplines. The present study utilized Photovoice, a Participatory Action Research method, to identify themes that underlie women's experiences in traditionally male-dominated fields. Photovoice enables participants to convey unique aspects of their experiences via photographs and their in-depth knowledge of a community through personal narrative. Forty-six STEM women graduate students and postdoctoral fellows completed a Photovoice activity in small groups. They presented photographs that described their experiences pursuing leadership positions in STEM fields. Three types of narratives were discovered and classified: career strategies, barriers to achievement, and buffering strategies or methods for managing barriers. Participants described three common types of career strategies and motivational factors, including professional development, collaboration, and social impact. Moreover, the lack of rewards for these workplace activities was seen as limiting professional effectiveness. In terms of barriers to achievement, women indicated they were not recognized as authority figures and often worked to build legitimacy by fostering positive relationships. Women were vigilant to other people's perspectives, which was costly in terms of time and energy. To manage role expectations, including those related to gender, participants engaged in numerous role transitions throughout their day to accommodate workplace demands. To buffer barriers to achievement, participants found resiliency in feelings of accomplishment and recognition. Social support, particularly from mentors, helped participants cope with negative experiences and to envision their future within the field. Work-life balance also helped participants find meaning in their work and have a sense of control over their lives. Overall, common workplace challenges included a lack of social capital and limited degrees of freedom. Implications for organizational policy and future research are discussed.

  3. Reel Royal Diversity? The Glass Ceiling in Disney’s Mulan and Princess and the Frog

    Directory of Open Access Journals (Sweden)

    Lauren Dundes

    2016-12-01

    Full Text Available Both in Mulan and Princess and the Frog, Disney eschews a traditional fairytale ending involving palatial opulence by substituting an alternative narrative for women of color. Mulan disguises herself as a male soldier in order to serve in her father’s place. After sharing victory with male companions, she willingly returns home to domesticity and the confines imposed by her gender. Tiana spends two thirds of the movie as a frog, substantially limiting her on-screen time as an African American female. Like Mulan, she is driven to please her father. She fulfills his dream of owning a high-end restaurant, ironically named Tiana’s Palace, the closest she comes to a royal lifestyle. Although protagonists with more realistic lives could potentially enhance viewers’ connection with them and model a work ethic or commitment to home life, the standard and more financially successful Disney narrative immerses viewers in a fantasy world of endless prospects including a life of royalty. These nonwhite heroines instead display a willingness to settle for more modest aspirations in stories replete with stereotypical gender and race-bound tropes. This divergent narrative suggests that protagonists of color are not entitled to a life of leisure and privilege that white Disney princesses enjoy.

  4. Reel Royal Diversity? The Glass Ceiling in Disney’s Mulan and Princess and the Frog

    OpenAIRE

    Lauren Dundes; Madeline Streiff

    2016-01-01

    Both in Mulan and Princess and the Frog, Disney eschews a traditional fairytale ending involving palatial opulence by substituting an alternative narrative for women of color. Mulan disguises herself as a male soldier in order to serve in her father’s place. After sharing victory with male companions, she willingly returns home to domesticity and the confines imposed by her gender. Tiana spends two thirds of the movie as a frog, substantially limiting her on-screen time as an African American...

  5. Simulation Study of Discharging PCM Ceiling Panels through Night - time Radiative Cooling

    DEFF Research Database (Denmark)

    Bourdakis, Eleftherios; Kazanci, Ongun Berk; Grossule, F.

    2016-01-01

    demand. In the present simulation study, the coupling of nighttime radiative cooling with PCM for cooling an office room was investigated. For cooling water through nighttime radiative cooling two types of solar panels were utilized, an unglazed solar collector and photovoltaic/thermal (PV/T) panels...... provided by the PV/T panels was 43 W/m2 for Copenhagen, while for Milan and Athens it was 36 W/m2 and 34 W/m2, respectively. The cooling power of the unglazed solar collector was negligible. Finally, the total electricity produced in Copenhagen for the simulated period was 371 kWh, while for Milan...... and increase use of renewable energy sources. The aim is that by 2020 all new buildings should be nearly zero-energy buildings. A solution that could contribute to this is the combination of photovoltaic panels for the production of electricity and phase change material (PCM) for the reduction of peak cooling...

  6. Field study evaluation of diffuse ceiling ventilation in classroom during real operating conditions

    DEFF Research Database (Denmark)

    Kristensen, Martin Heine; Jensen, Jakob Søland; Heiselberg, Per Kvols

    2017-01-01

    Highlights •Field experimental measurements during real operating conditions. •Evaluation of pressure chamber effect. •Evaluation of displacement effect. •Evaluation of thermal comfort.......Highlights •Field experimental measurements during real operating conditions. •Evaluation of pressure chamber effect. •Evaluation of displacement effect. •Evaluation of thermal comfort....

  7. The influence of profiled ceilings on sports hall acoustics : Ground effect predictions and scale model measurements

    NARCIS (Netherlands)

    Wattez, Y.C.M.; Tenpierik, M.J.; Nijs, L.

    2018-01-01

    Over the last few years, reverberation times and sound pressure levels have been measured in many sports halls. Most of these halls, for instance those made from stony materials, perform as predicted. However, sports halls constructed with profiled perforated steel roof panels have an unexpected

  8. Blank Canvas and Glass Ceiling: Using Visual Metaphors and Narratives to Examine Preservice Teacher Development

    Science.gov (United States)

    Gosselin, Colette; Meixner, Emily

    2015-01-01

    When preparing college-age teacher candidates to teach in diverse contexts, knowing how they reconcile knowledge, self-author, and negotiate social relationships can enhance pedagogy and inform program design. In this article, the authors use a developmental framework they created to examine how teacher candidates' visual metaphors about White…

  9. Collusion through price ceilings? In search of a focal-point effect

    Czech Academy of Sciences Publication Activity Database

    Engelmann, Dirk; Müller, W.

    2011-01-01

    Roč. 79, č. 3 (2011), s. 291-302 ISSN 0167-2681 Institutional research plan: CEZ:AV0Z70850503 Keywords : collusion * competition policy * experimental economics Subject RIV: AH - Economics Impact factor: 1.006, year: 2011

  10. Why marathon migrants get away with high metabolic ceilings : Towards an ecology of physiological restraint

    NARCIS (Netherlands)

    Piersma, Theunis

    Animals usually are not willing to perform at levels, or for lengths of time, of which they should be maximally capable. In stating this, exercise performance and inferred capacity are gauged with respect to body size and the duration of particular levels of energy expenditure. In such relative

  11. Evaluation of progress under the EU National Emission Ceilings Directive. Progress towards EU air quality objectives

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2012-10-15

    The objective of this report was to assess to what extent the NEC Directive's environmental and health objectives concerning acidification, eutrophication and ground-level ozone exposure for the year 2010 have been achieved. The main basis for the assessment is the emission inventory data officially reported by Member States. The analysis was conducted by using the same scientific methods of 2001 (original knowledge) and 2010 (present knowledge) that support European air pollution abatement policies. The original knowledge consisted of modelling concentrations and exposure using the older Lagrangian EMEP model (utilising a 150 x 150 km{sup 2} grid for the computation of grid-average S and N depositions and ground-level ozone concentrations, together with the 1998 European critical load database for assessing the risk of acidification and eutrophication). The assessment performed on the basis of present knowledge used the current Eulerian EMEP model on a 50 x 50 km{sup 2} grid for the computation of ecosystem-specific depositions and ground-level ozone concentrations, in combination with the 2008 European critical loads database. When assessing progress using original knowledge, the NEC Directive's interim environmental acidification objective has been met in almost all grid cells, while the eutrophication objective - provided in a footnote within the NEC Directive and which was formulated on the European Union area as a whole - has been met both for the EU-15 and the EU-27 regions as a whole. If, in contrast, the eutrophication objective had been required to be met in individual grid cells (as for acidification) or in individual Member States, it would be exceeded in many grid cells and in 11 Member States. While acidification has been markedly reduced, eutrophication is now recognised as a major environmental problem in Europe, especially in the context of its potential adverse impacts on biodiversity. An assessment using present knowledge indicates that neither the acidification nor eutrophication objective have been met. The health- and vegetation-related interim environmental ozone objectives have been achieved using present knowledge, across most of the EU.27 area. For forests, however, the objective of no exceedance of the critical limit has been violated in most Member States. This analysis also shows that model results are more optimistic than the observations about the achieved reductions in ozone concentrations between 1990 and 2010. (LN)

  12. The measurement of change in functional ability: dealing with attrition and the floor/ceiling effect

    DEFF Research Database (Denmark)

    Holstein, Bjørn E; Avlund, Kirsten; Due, Pernille

    2006-01-01

    , functional ability at baseline, relative wealth, social network, self-rated health, and life-satisfaction. Inclusion of the dead in statistical models for the study of change in functional ability reduced the attrition problem. A logistic model for paired observations of functional ability at two points......The purpose was to describe four-year change in functional ability among older persons and the relationship to sex, age, and other background factors. The baseline study, performed in 1986, is based on a random sample of older persons (n=1261). Follow-up data were collected four-years later (n=912...

  13. A SysML Test Model and Test Suite for the ETCS Ceiling Speed Monitor

    DEFF Research Database (Denmark)

    Braunstein, Cécile; Peleska, Jan; Schulze, Uwe

    2014-01-01

    dedicated to the publication of models that are of interest for the model-based testing (MBT) community, and may serve as benchmarks for comparing MBT tool capabilities. The model described here is of particular interest for analysing the capabilities of equivalence class testing strategies. The CSM...... application inputs velocity values from a domain which could not be completely enumerated for test purposes with reasonable effort. We describe a novel method for equivalence class testing that – despite the conceptually infinite cardinality of the input domains – is capable to produce finite test suites...... that are exhaustive under certain hypotheses about the internal structure of the system under test....

  14. Up Against the Glass Ceiling: Culture and Gender in the Workplace.

    Science.gov (United States)

    Cordeiro, Paula A.

    1997-01-01

    Uses a cultural map exercise to show how culture affects educators' perspectives of gender issues in school administration. Discusses individual cultural identity and the influences of educators' societal/national, regional/linguistic or racial/ethnic, and individual belief cultures. Feminist theory and its premises can help everyone understand…

  15. Performance of low pressure mechanical ventilation concept with diffuse ceiling inlet for renovation of school classrooms

    DEFF Research Database (Denmark)

    Terkildsen, Søren; Svendsen, Svend

    In a great portion of Danish primary schools the mechanical ventilation systems is outdated or simply rely on opening of windows to ventilate the classrooms. This leads to high energy consumption for fans and/or ventilation heat losses and poor indoor environment, as the ventilation systems cannot...... provide a sufficient ventilation rate. A recent study with 750 Danish classrooms show that 56 % had CO2-concentrations over a 1000 ppm, which is the recommended limit by the Danish working environment authority and this adversely affects the performance and well being of the pupils. This paper describes...... a mechanical ventilation concept to lower energy consumption and improve the indoor environment, developed for refurbishment of school classrooms. The performance of the concept is investigated through computer simulations and measurements of energy consumption and indoor environment. The measurements are made...

  16. A fixed energetic ceiling to parental effort in the great tit?

    NARCIS (Netherlands)

    Tinbergen, J.M.; Verhulst, S.

    1. To elucidate the links between avian brood size, parental effort and parental investment, we measured daily energy expenditure (DEEfem), condition (residuals of mass on tarsus) and feeding rate in female great tits Parus major L. rearing broods in which the number of young was either reduced,

  17. A fixed energetic ceiling to parental effort in the great tit?

    NARCIS (Netherlands)

    Tinbergen, J.M.; Verhulst, S.

    2000-01-01

    1. To elucidate the links between avian brood size, parental effort and parental investment, we measured daily energy expenditure (DEEfem), condition (residuals of mass on tarsus) and feeding rate in female great tits Parus major L. rearing broods in which the number of young was either reduced,

  18. A Comparison of Ceiling and Visibility Observation for NWS Manned Observation Sites and ASOS Sites

    Science.gov (United States)

    1993-05-01

    Distribution Diagram ASOS Reports Snow (7.300 data points) . 2. . . . 2W2 E 100 ’- I -1 -50 . . .20 D ifeec ByCtgr jN-SS Fiur 442. cte n rqec...wind. Knowing only the objective result of aerosol scattering within a football size volume of air, gives no indication of what a pilot will encounter

  19. Prediction of Indoor Airflow Patterns in Livestock Buildings Ventilated through a Diffuse Ceiling

    DEFF Research Database (Denmark)

    Jacobsen, L.; Nielsen, Peter Vilhelm; Morsing, S.

    2004-01-01

    The airflow conditions in an experimental pig housing unit are examined both experimentally and numerically (simulation) with particular focus on the airflow conditions in the occupational zone of the animals. Two heating setups are used, and the temperature is measured in a horizontal profile at...

  20. Birds through a ceiling of alabast: genderproblematiek in de romans van Hugo Claus

    OpenAIRE

    Lech, Laura

    2013-01-01

    In the novels of Hugo Claus in which an "impossible love" is an important issue, we find, almost without exception, characters having characteristics that are typical for members of the opposite sex. (Latent) homosexuality plays an important role. The androgyny theme is the main theme in most of Claus' novels. There are two sources to be designated for this theme. In the first place, that is Freud, the founder of psychoanalysis. The other source is the ancient belief that man is an androgynou...

  1. Birds through a ceiling of alabast : genderproblematiek in de romans van Hugo Claus

    NARCIS (Netherlands)

    Lech, Laura

    2013-01-01

    In the novels of Hugo Claus in which an "impossible love" is an important issue, we find, almost without exception, characters having characteristics that are typical for members of the opposite sex. (Latent) homosexuality plays an important role. The androgyny theme is the main theme in most of

  2. Raising the accommodation ceiling for wind power by intelligent response of demand and distributed generation

    Energy Technology Data Exchange (ETDEWEB)

    MacDougall, Pamella; Kok, Koen [TNO (Netherlands). Smart Grid group; Warmer, Cor [Energy Research Centre of the Netherlands (ECN) (Netherlands)

    2011-07-01

    With the world becoming ever more conscious of the necessity for clean, sustainable energy sources, an increased proportion of energy produced by wind resources is expected. In the current power system, the integration of such large capacity of non-controllable and intermittent supply leads to several challenges, one of which is to control the balance between demand and supply. A large - not yet utilized - source that may provide flexibility to contribute to this balance is available at the household level. Efficient heating systems such as heat pumps, distributed generation from e.g. micro-CHP and storage facilities as provided by electric vehicles can be intelligently controlled in the future smart grid in order to adapt in near real-time to fluctuating wind power. One of these enabling technologies, the PowerMatcher, has already been proven in several field trials in real-life circumstances. This multi-agent-based system uses electronic markets to coordinate devices with the objective of matching electricity supply and demand. In this paper, the potential of the PowerMatcher technology is explored to accommodate mass integration of electricity produced by wind energy by adapting flexible household demand and supply to the availability of wind power. In this way the need for - fossil fuel based - extra reserve capacity will be minimized as compared to business as usual. These studies, from the European FP 7 project Smart House Smart Grid, have been achieved by running large-scale simulations, of one million households, under real-life conditions. In these simulation studies the Dutch WLO-SE scenario has been followed, that foresees a strong increase in capacity of off-shore wind energy from 3 GW in 2020 to 10 GW in 2040 in the Netherlands. Results have been extrapolated to even faster wind energy growth scenarios as envisioned by the wind energy industry (e.g. We rate at sea). We will show that by using demand response in homes we can accommodate mass integration of electricity produced by offshore wind. Smart control can lead to reduced reserve capacity needed and the homes can absorb a much larger percentage of renewable energy from wind. (orig.)

  3. Shattering the Glass Ceiling: Ensuring the Right to Vote for Persons ...

    African Journals Online (AJOL)

    This paper suggests that the concept of unsoundness of mind should no longer be the basis for excluding persons with disabilities generally, and those with intellectual disabilities in particular, from voting. It traces provisions in law that disenfranchise persons adjudged to be of unsound mind; and provides interpretation ...

  4. Women in Leadership in Higher Education: Leadership Styles and the "Glass Ceiling"

    Science.gov (United States)

    Michael, Rebecka

    2013-01-01

    Women in upper-level leadership positions in higher education are underrepresented. This study examined the predominant leadership styles of women who have achieved upper-level leadership positions in higher education explored intentional changes in their leadership styles. Primarily, the study sought to determine if these leaders had similar…

  5. Theory in social simulation: Status-Power theory, national culture and emergence of the glass ceiling

    NARCIS (Netherlands)

    Hofstede, G.J.

    2013-01-01

    This is a conceptual exploration of the work of some
    eminent social scientists thought to be amenable to agent-based
    modelling of social reality. Kemper’s status-power theory and
    Hofstede’s dimensions of national culture are the central
    theories. The article reviews empirical work on

  6. Latino Workers Hitting a Blue-Collar Ceiling. New Journalism on Latino Children

    Science.gov (United States)

    Fuller, Bruce; McElmurry, Sara

    2011-01-01

    Chicago has a dynamic history of embracing change, evolving from an agricultural and commercial hub to the steel powerhouse that would undergird America's industrial revolution. The "City of Big Shoulders" now bears a sizeable burden, one that again requires it to embrace change. The metro area must shift to an economy built on knowledge…

  7. Inimluud Mihkli kiriku võlvidelt / Human remains on the vaulted ceiling of Mihkli Church

    Directory of Open Access Journals (Sweden)

    Martin Malve

    2012-01-01

    Full Text Available Altogether 4029 human bones or their fragments from the C 13th–18th were gathered and analysed from soil on the vaults of Mihkli (St Michael’s Church in western Estonia during the rescue works in 2011 (photo 1. Ribs and vertebrae formed the majority of bones, but wholly preserved long bones and other larger bones, as well as, hand and foot bones that are quite typical among mixed human remains were almost absent in this case. Therefore, it can be concluded that during the earthworks larger bones were taken from the soil. The minimum number of adults was determined by the ribs of the right side. Only the ribs with preserved heads (figure 1 were used in calculations. The rib fragments indicate approximately 60 adults among the assorted bones. Judging by the radius, there were at least 16 children among the bone assemblage. Scarceness of children in the Mihkli church can be the result of poor preservation, smallness and fragility of their bones, but the possibility that subadult (child and juvenile burials were fewer in the destroyed part of the churchyard cannot be ruled out.Pathological analysis of the osteological material ascertained several diseases and traumas, the most common pathologies being connected to ageing, for example, wearing of joints (Osteoarthrosis. Various diseases related to degeneration of the spine were present – spondylosis, spondyloarthrosis and osteochondrosis. Compression fractures (fractura compressiva and Schmorl´s nodes (nodi Schmorl indicated strenuous physical activity and/or traumas. Dental diseases included caries (photo 2, alveolar reduction, hypoplasia and tooth abscesses. Several upper and lower jaws showed traces of ante mortem lost teeth (photo 3. In one case a canine of the right mandible of an adult man (age 45 + years had formed but had not erupted (photo 4.Various healed fractures of ribs and limb bones formed the bulk of traumas detected on the bones. Three right ribs had fractures in a stage of healing. We can note also the left humerus of a middle aged man with a healed fracture at the distal end (photo 5, a fibula with a healed fracture (photo 5 and a talus with osteochondritis dissecans. Some bones exhibited markers of periostitis that could have been caused by trauma, infection or physical stress. Apart from diseases and traumas, anomalies of bone growth were present in osteological finds. For instance a sacrum with sacralization can be identified. Some adults and children had open suture between frontal cranial bones (metopic suture; sutura metopica, these bones usually knit at the age of 2–4 years.The analysed bones belonged to adults and children in all age groups, representing osteological material typical for an ordinary and peacetime cemetery.

  8. Who would benefit from memory training? A pilot study examining the ceiling effect of concurrent cognitive stimulation

    OpenAIRE

    Chau, Wai Wang; Yuen,K S L; Ho,Florence; Kwok,Timothy CY

    2011-01-01

    Timothy CY Kwok1,2, Wai Wang Chau1, Kenneth SL Yuen1,3, Anita YM Wong4, Jessie CY Li1, Rebecca YY Shiu4, Florence KY Ho11Jockey Club Centre for Positive Ageing, Hong Kong; 2Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong; 3Laboratory of Neuropsychology, Department of Psychology, University of Hong Kong, Pokfulam, Hong Kong; 4The Hong Kong Chinese Women's Club Madam Wong Chan Sook Ying Memorial Care and Attention Home for the Aged, Hong KongAbstr...

  9. Improved outcomes for newly diagnosed AL amyloidosis between 2000 and 2014: cracking the glass ceiling of early death.

    Science.gov (United States)

    Muchtar, Eli; Gertz, Morie A; Kumar, Shaji K; Lacy, Martha Q; Dingli, David; Buadi, Francis K; Grogan, Martha; Hayman, Suzanne R; Kapoor, Prashant; Leung, Nelson; Fonder, Amie; Hobbs, Miriam; Hwa, Yi Lisa; Gonsalves, Wilson; Warsame, Rahma; Kourelis, Taxiarchis V; Russell, Stephen; Lust, John A; Lin, Yi; Go, Ronald S; Zeldenrust, Steven; Kyle, Robert A; Rajkumar, S Vincent; Dispenzieri, Angela

    2017-04-13

    In light of major advances in immunoglobulin light chain (AL) amyloidosis, we evaluated the trends in presentation, management, and outcome among 1551 newly diagnosed AL amyloidosis patients seen in our institution from 2000 to 2014. As compared with the 2 intervals 2000-2004 and 2005-2009, patients diagnosed in 2010-2014 were less likely to have >2 involved organs. Utilization of autologous stem cell transplant (ASCT) was similar across all periods, about one-third of patients, but there was an increase in the use of pre-ASCT bortezomib induction and of unattenuated melphalan conditioning in 2010-2014 compared with earlier periods. Non-ASCT first-line regimen changed with 65% of patients in 2010-2014 received bortezomib-based therapy, 79% of patients in 2005-2009 received melphalan-dexamethasone, and 64% of patients in 2000-2004 received melphalan-prednisone. The rate of better than very good partial response (VGPR) was higher in more recent periods (66% vs 58% vs 51%; P = .001), a change largely driven by improved VGPR rates in the non-ASCT population. Overall survival (OS) has improved, with inflection points for improvement differing for the ASCT and non-ASCT groups. In the ASCT population, the greatest gains were after 2010 (4-year OS, 91% compared with 73% and 65%). In the non-ASCT group, greatest gains were after 2005 (4-year OS, 38%, 32%, and 16%). Fewer patients died within 6 months of diagnosis in the 2 later periods (24% vs 25% vs 37%; P < .001). Overall, outcomes among patients with AL amyloidosis have improved with earlier diagnosis, higher rates of VGPR, lower early mortality, and improved OS. © 2017 by The American Society of Hematology.

  10. Breaking through the glass ceiling: a survey of promotion rates of graduates of a primary care Faculty Development Fellowship Program.

    Science.gov (United States)

    Smith, Mindy A; Barry, Henry C; Dunn, Ruth Ann; Keefe, Carole; Weismantel, David

    2006-01-01

    Academic promotion has been difficult for women and faculty of minority race. We investigated whether completion of a faculty development fellowship would equalize promotion rates of female and minority graduates to those of male and white graduates. All graduates of the Michigan State University Primary Care Faculty Development Fellowship Program from 1989-1998 were sent a survey in 1999, which included questions about academic status and appointment. We compared application and follow-up survey data by gender and race/ethnicity. Telephone calls were made to nonrespondents. A total of 175 (88%) graduating fellows responded to the follow-up survey. Information on academic rank at entry and follow-up was obtained from 28 of 48 fellows with missing information on promotion. Male and female graduates achieved similar academic promotion at follow-up, but there was a trend toward lower promotion rates for minority faculty graduates compared to white graduates. In the multivariate analysis, however, only age, years in rank, initial rank, and type of appointment (academic versus clinical) were significant factors for promotion. Academic advancement is multifactorial and appears most related to time in rank, stage of life, and career choice. Faculty development programs may be most useful in providing skill development and career counseling.

  11. Breaking Through the Glass Ceiling: Recent Experimental Approaches to Probe the Properties of Supercooled Liquids near the Glass Transition.

    Science.gov (United States)

    Smith, R Scott; Kay, Bruce D

    2012-03-15

    Experimental measurements of the properties of supercooled liquids at temperatures near their glass transition temperatures, Tg, are requisite for understanding the behavior of glasses and amorphous solids. Unfortunately, many supercooled molecular liquids rapidly crystallize at temperatures far above their Tg, making such measurements difficult to nearly impossible. In this Perspective, we discuss some recent alternative approaches to obtain experimental data in the temperature regime near Tg. These new approaches may yield the additional experimental data necessary to test current theoretical models of the dynamical slowdown that occurs in supercooled liquids approaching the glass transition.

  12. Beyond the Fourth Grade Glass Ceiling: Understanding Reading Comprehension among Bilingual/Bimodal Deaf and Hard of Hearing Students

    Science.gov (United States)

    Scott, Jessica Armytage

    2015-01-01

    Research has found that, on average, deaf and hard of hearing (DHH) students graduate from high school reading at the fourth grade level (Allen, 1986). Additionally, DHH children of deaf parents (Charrow & Fletcher, 1974) and those with strong American Sign Language (ASL) proficiency (Strong & Prinz, 1997) tend to outperform DHH students…

  13. Community College Students with Criminal Justice Histories and Human Services Education: Glass Ceiling, Brick Wall, or a Pathway to Success

    Science.gov (United States)

    Rose, Lisa Hale

    2015-01-01

    In spite of open access to community college education, specifically human service associate degree programs, students with criminal justice histories do not necessarily have an unobstructed pathway to obtaining the degree and admission to the baccalaureate programs in human services and social work that are almost always selective. The first…

  14. Breaking the Glass Ceiling of Achievement for Low-Income Students and Students of Color. Shattering Expectations Series

    Science.gov (United States)

    Bromberg, Marni; Theokas, Christina

    2013-01-01

    Typically, achievement gaps between groups of students are measured as either differences in average scores or differences in proficiency rates. But, practitioners, policymakers, and researchers have long recognized that these approaches don't tell the whole story. Average scores, for example, are good at summarizing trends but can mask real…

  15. Not the Ceiling, but the Floor: Innovative Harlem Early Childhood Education Effort Complicated by Varying Government Regulations

    Science.gov (United States)

    Costa, Kristina

    2012-01-01

    This case study was produced in conjunction with the Center for American Progress's accompanying report on these issues, "Increasing the Effectiveness and Efficiency of Existing Public Investments in Early Childhood Education." This report establishes a set of policies and administrative changes on the federal level that will begin to…

  16. Bayesian fusion of ceiling mounted camera and laser range finder on a mobile robot for people detection and localization

    NARCIS (Netherlands)

    Hu, N.; Englebienne, G.; Kröse, B.J.A.

    2012-01-01

    Robust people detection and localization is a prerequisite for many applications where service robots interact with humans. Future robots will not be stand-alone any more but will operate in smart environments that are equipped with sensor systems for context awareness and activity recognition. This

  17. Maxillary Sinus Floor Augmentation Surgery with Autogenous Bone Grafts as Ceiling : A Pilot Study and Test of Principle

    NARCIS (Netherlands)

    Raghoebar, Gerry M.; Meijer, Henny J. A.; Telleman, Gerdien; Vissink, Arjan

    Background: Studies have pointed out that the mere elevation of the maxillary sinus membrane might suffice to allow for bone formation indicating the additional use of augmentation materials to be redundant. Purpose: The purpose of this study was to assess whether elevation of the sinus mucosal

  18. Breaking the glass ceiling: structural, cultural, and organizational barriers preventing women from achieving senior and executive positions.

    Science.gov (United States)

    Johns, Merida L

    2013-01-01

    The business case for gender diversity in senior and executive positions is compelling. Studies show that companies that have the best records for promoting women outstrip their competition on every measure of profitability. Yet women disproportionately are failing to attain high-level positions. Reviewing current data on women in the workplace, findings of studies on the relationship between gender diversity in senior management and company performance, and the literature on gender behavioral differences and the workplace, this article explores the possible reasons for the persistent wage and gender gap between women and men in senior leadership positions and discusses possible remedies.

  19. Breaking the Glass Ceiling: Structural, Cultural, and Organizational Barriers Preventing Women from Achieving Senior and Executive Positions

    OpenAIRE

    Johns, Merida L.

    2013-01-01

    The business case for gender diversity in senior and executive positions is compelling. Studies show that companies that have the best records for promoting women outstrip their competition on every measure of profitability. Yet women disproportionately are failing to attain high-level positions. Reviewing current data on women in the workplace, findings of studies on the relationship between gender diversity in senior management and company performance, and the literature on gender behaviora...

  20. Michelangelo Buonarroti: Restoration of the Frescoes on the Vaulted Ceiling and the Last Judgment in the Sistine Chapel

    Directory of Open Access Journals (Sweden)

    Gianluigi Colalucci

    2017-07-01

    Full Text Available The last restoration of Michelangelo’s frescoes in the Sistine Chapel was directed and conducted by the internal staff of the Vatican Museums, in the period from June 1980 to April 1994. The historical importance of this restoration is found in the recovery of the unexpected chromatic tones used by Michelangelo and hidden for centuries by the dust, black smoke and grease produced by candles and braziers, and by the animal glue, gum resin and ox bile used by restorers in the past to revive the colors. The important result was obtained without any risk, thanks to developments in the field of methods and materials, the progress made in diagnostics, and the elaboration of a theory of restoration (Brandi C. 1950 which still acts as a support to the scientific and technical guidelines used in restoration today. The good preservation of the frescoes in the Chapel is entrusted to a filter and air conditioning system which was renewed and upgraded in 2015, and to modern LED lighting installed in the same year. The cleaning of the frescoes, which were almost perfectly preserved thanks to Michelangelo’s technique, allowed us to study the artist’s painting technique and to learn that some of the techniques he employed in marble sculpting were applied to his painting, and that he introduced novel methods, such as the technique used to give three-dimensionality to figures or his particular brushstrokes, which anticipated divisionism and pointillism.

  1. Cracks in the Ceiling? Historical and Contemporary Trends of African American Deans of Schools of Social Work

    Science.gov (United States)

    Banks, Leon; Hopps, June Gary; Briggs, Harold E.

    2018-01-01

    This article presents data from an exploratory study of the demographic and published scholarship profiles of the deans and university provosts of the top 50 schools of social work as ranked by the 2016 U.S. News and World Report ratings. Method: The authors used an exploratory design to conduct a content analysis of the demographic and…

  2. Do not let the Netherlands down. Cleaner air for health and nature by a new National Emission Ceiling guideline

    International Nuclear Information System (INIS)

    2008-11-01

    An overview is provided of the seriousness of air pollution in various European countries and the hazardous effects on public health and nature. The facts and data in this publication are based on studies from authoritative research institutes in Europe. [mk] [nl

  3. Air distribution in a multi-occupant room with mixing or displacement ventilation with or without floor or ceiling heating

    DEFF Research Database (Denmark)

    Wu, Xiaozhou; Fang, Lei; Olesen, Bjarne W.

    2015-01-01

    and the horizontal distribution of indoor containment concentration in the breathing zone were measured for all six systems with a supply air temperature of 19.0°C and an air change rate of 4.2 h-1. The results showed that the mean vertical air temperature difference in the occupied zone varied from 0.1°C to 0.6°C...

  4. Glass Ceiling or Sticky Floor? Examining the Gender Pay Gap across the Wage Distribution in Urban China, 1987-2004

    OpenAIRE

    Chi, Wei; Li, Bo

    2007-01-01

    Using 1987, 1996, and 2004 data, we show that the gender pay gap in the Chinese urban labor market has increased across the wage distribution, and the increase was greater at the lower quantiles. We interpret this as evidence of the “sticky floor” effect.We use the reweighting and recentered influence function projection method proposed by Firpo, Fortin, Lemieux (2005) to decompose gender pay differentials across the wage distribution. We find that the gender differences in the re...

  5. Energy Performance of a Novel System Combining Natural Ventilation with Diffuse Ceiling Inlet and Thermally Activated Building Systems (TABS)

    DEFF Research Database (Denmark)

    Yu, Tao

    . Both steady-state and dynamic measurements are carried out in the experimental chamber to investigate the energy performance of the system and the thermal comfort in the test room. Overall, this integrated system has high energy saving potential without any compromise of thermal comfort even in extreme...... and thermally activated building systems (TABS) for cooling and ventilation in future Danish office buildings. The new solution would have the special potential of using natural ventilation all year round even in the extremely cold seasons without any draught risk. The main focuses of this study are the energy...

  6. Comparison of the Performance of Chilled Beam with Swirl Jet and Diffuse Ceiling Air Supply: Impact of Heat Load Distribution

    DEFF Research Database (Denmark)

    Bertheussen, Bård; Mustakallio, Panu; Kosonen, Risto

    2013-01-01

    temperature was controlled at 24 °C. The quality of the generated indoor environment as defined in ISO standard 7730 (2005) was assessed based on comprehensive physical measurements. The systems created Category A thermal environment in cooling situations at heat load of 50 W∙m−2 and 78 W∙m−2 (office room...... (ventilation effectiveness of 0.4) and the air flow rate had to be above minimum to safeguard the indoor air quality. The radial swirl jet of chilled beam also was not capable of creating complete mixing at high and concentrated heat load (ventilation effectiveness of 0.7)....

  7. Learning about Bones at a Science Museum: Examining the Alternate Hypotheses of Ceiling Effect and Prior Knowledge

    Science.gov (United States)

    Judson, Eugene

    2012-01-01

    Groups of children at a science museum were pre- and post-assessed with a type of concept map, known as personal meaning maps, to determine what new understandings, if any, they were gaining from participation in a series of structured hands-on activities about bones and the process of bones healing. Close examination was made regarding whether…

  8. Performance of radiant cooling ceiling combined with personalized ventilation in an office room: identification of thermal conditions

    DEFF Research Database (Denmark)

    Lipczynska, Aleksandra; Kaczmarczyk, Jan; Melikov, Arsen Krikor

    2014-01-01

    were performed in a test room arranged as an office with 2 workstations and 2 seating occupants resembled by thermal manikins. Heat gain of 66-72 W/m2 was simulated in the room (occupants, computers, lighting, solar gain). The air temperature in the chamber was maintained at 26°C and 28°C. Personalized...

  9. Emergency Cabin Lighting Installations: An Analysis of Ceiling-versus Lower Cabin-Mounted Lighting during Evacuation Trials.

    Science.gov (United States)

    1981-02-01

    otent i a I ’i"re iqht be expo)sed to, and theoca nc0rl il experimental \\ ’in fcrmat ion walqivenu ib ut the t;: -ci flu nature of the Iwell 1 qlmtinnc...8217’ T’I r’irlwt riOI with oricqency ligthting St!!t wititc 0𔃻 1V i’~i ~i i: it til!* :ottam of- ;-ɚe’ ii i -ilk t, -. ’r’,’ ed 2 owr’ to half size r...neatedit cabin micipoirit 1)r lel [RCso Ilto Of :subjec t .;etIo~a o huhsub jectiAve in nature , a x’ralereact ion t(’ the14 Iil;le-mo, ntead liqlit inq sy

  10. The glass ceiling effect and its impact on mid-level female officer career progression in the United States Marine Corps and Air Force

    OpenAIRE

    Nesbitt, Amy; Evertson, Adrienne

    2004-01-01

    Approved for public release, distribution is unlimited Women in the military are considered a minority population. Recent numbers reflect a 16% representation by women in the total Armed Forces population, with the Air Force displaying the largest proportion (17%), while the Marine Corps has the smallest proportion (6%). Multiple Defense organizations have expressed concern about the progression of women officers into senior leadership positions and the barriers they face to their cont...

  11. [Glass ceiling and slippery stairs? Gender inequalities and strategies for change in the Spanish Society of Public Health and Health Services Administration].

    Science.gov (United States)

    Colomer Revuelta, C; Peiró Pérez, R

    2002-01-01

    In scientific societies, as in other social fields, women's participation in decision making is lower than that of men. We describe the situation in SESPAS (Spanish Society of Public Health and Health Services Administration) where, despite representing a 40% of its members, very few women have been in positions in which decisions are taken or in those of professional recognition. The process of change implemented during recent years and some of the effects of the actions taken are presented. Making the existing inequalities known has generated debate and interest in the intervention. A gender and public health working group was set up. In the last two years more women have been promoted to more senior positions in SESPAS.

  12. The climb to break the glass ceiling in surgery: trends in women progressing from medical school to surgical training and academic leadership from 1994 to 2015.

    Science.gov (United States)

    Abelson, Jonathan S; Chartrand, Genevieve; Moo, Tracy-Ann; Moore, Maureen; Yeo, Heather

    2016-10-01

    There have been many efforts to increase the number of women surgeons. We provide an update of women surgeon representation along the pathway to surgical academia. Data was extracted from Association of American Medical Colleges FACTS and Faculty Administrative Management Online User System as well as GME annual reports starting in 1994 until the last year available for each. The proportion of graduating women medical students has increased on average .5% per year from 1994 to 2014. Women general surgery trainees have more than doubled in number over the same period but represented 38.3% of all general surgery trainees in 2014. Women Full Professors increased on average .3% from 1994 to 2015 but still make up less than 10% of all Full Professors. Despite improvements over the past 20 years, there are still large gender gaps in surgery for trainees and academic leadership. At the current rate of increase, women Full Professors will not achieve gender parity until in 2136. Copyright © 2016 Elsevier Inc. All rights reserved.

  13. The Ability-Track Glass Ceiling of Israeli Schooling: Lessons from a Comparative Analysis of Israeli and Australian PISA 2012 Data

    Science.gov (United States)

    Razer, Michal; Mittelberg, David; Ayalon, Snait

    2018-01-01

    Israeli students ranked in the bottom third of the countries surveyed by PISA 2012 in mathematical literacy, while the gap between the highest and lowest scores was the second largest in the OECD. This paper explores which variables led to disparities in mathematical literacy between different socioeconomic levels and between Israeli Arabs and…

  14. Breaking through the glass ceiling: The correlation between the self-diffusivity in and krypton permeation through deeply supercooled liquid nanoscale methanol films

    Science.gov (United States)

    Smith, R. Scott; Matthiesen, Jesper; Kay, Bruce D.

    2010-03-01

    Molecular beam techniques, temperature-programmed desorption (TPD), and reflection absorption infrared spectroscopy (RAIRS) are used to explore the relationship between krypton permeation through and the self-diffusivity of supercooled liquid methanol at temperatures (100-115 K) near the glass transition temperature, Tg (103 K). Layered films, consisting of CH3OH and CD3OH, are deposited on top of a monolayer of Kr on a graphene covered Pt(111) substrate at 25 K. Concurrent Kr TPD and RAIRS spectra are acquired during the heating of the composite film to temperatures above Tg. The CO vibrational stretch is sensitive to the local molecular environment and is used to determine the supercooled liquid diffusivity from the intermixing of the isotopic layers. We find that the Kr permeation and the diffusivity of the supercooled liquid are directly and quantitatively correlated. These results validate the rare-gas permeation technique as a tool for probing the diffusivity of supercooled liquids.

  15. Breaking the Glass Ceiling: Increasing the Meaningful Involvement of Women Living With HIV/AIDS (MIWA) in the Design and Delivery of HIV/AIDS Services.

    Science.gov (United States)

    Carter, Allison; Greene, Saara; Nicholson, Valerie; O'Brien, Nadia; Sanchez, Margarite; de Pokomandy, Alexandra; Loutfy, Mona; Kaida, Angela

    2015-01-01

    The meaningful involvement of women living with HIV/AIDS (MIWA) is a key feature of women-centred HIV care, yet little is known about transforming MIWA from principle to practice. Drawing on focus group data from the Canadian HIV Women's Sexual and Reproductive Health Cohort Study (CHIWOS), we explored HIV-positive women's meaningful involvement in the design and delivery of HIV/AIDS services in British Columbia, Canada. In this article, we highlight the benefits and tensions that emerge as women traverse multiple roles as service users and service providers within their care communities, and the impact this has on their access to care and overall health.

  16. Through the glass ceiling - and back again: the experiences of two of the first non-medical directors of public health in England.

    Science.gov (United States)

    Evans, David; Adams, Lee

    2007-06-01

    In 2001, the English Department of Health announced a radical re-organisation of the NHS under the banner of 'shifting the balance of power'. As part of this re-organisation health authorities were abolished and the main NHS public health responsibilities devolved to the new primary care trusts (PCTs) from April 2002. Following several years of campaigning by the Multidisciplinary Public Health Forum (MPHF), in November 2001 the Acting Minister for Public Health, Lord Hunt, announced that PCT director of public health (DPH) posts would be open to 'suitably qualified' candidates from any discipline. From April 2002 a number of new DsPH from backgrounds other than medicine were appointed. This paper reports on the experiences of two such DsPH who shared a commitment to multidisciplinary public health, but who did not wholly share the objectives of the MPHF. We place the opening of PCT DPH posts in the context of tensions within NHS public health between a focus on health services versus the wider determinants of health, and the development of multidisciplinary public health. The paper reflects on both the degree of change this opening represented and the limitations and tensions such appointments exposed.

  17. What Are the Primary Limitations in B-Cell Affinity Maturation, and How Much Affinity Maturation Can We Drive with Vaccination? Breaking through Immunity's Glass Ceiling.

    Science.gov (United States)

    Kelsoe, Garnett; Haynes, Barton F

    2017-06-19

    A key goal of HIV-1 vaccine development is the induction of broadly neutralizing antibodies (bnAbs) targeted to the vulnerable regions of the HIV envelope. BnAbs develop over time in ∼50% of HIV-1-infected individuals. However, to date, no vaccines have induced bnAbs and few or none of these vaccine-elicited HIV-1 antibodies carry the high frequencies of V(D)J mutations characteristic of bnAbs. Do the high frequencies of mutations characteristic of naturally induced bnAbs represent a fundamental barrier to the induction of bnAbs by vaccines? Recent studies suggest that high frequencies of V(D)J mutations can be achieved by serial vaccination strategies. Rather, it appears that, in the absence of HIV-1 infection, physiologic immune tolerance controls, including a germinal center process termed affinity reversion, may limit vaccine-driven bnAb development by clonal elimination or selecting for mutations incompatible with bnAb activity. Copyright © 2017 Cold Spring Harbor Laboratory Press; all rights reserved.

  18. Living Two Lives: The Ability of Low Income African American Females in Their Quest to Break the Glass Ceiling of Education through the Ellison Model (TEM) Mentoring Approach

    Science.gov (United States)

    Hoyt, DaVina J.

    2013-01-01

    It is often that during their academic pursuits, to become successful, low-income African-American women must learn to navigate an upstream current through higher education, where the established order in the academy is based on Western European values that often conflict with African-American values (Harper, Patton & Wooden, 2009; Phinney,…

  19. We'll never get past the glass ceiling! Meta-stereotyping, world-views and perceived relative group-worth.

    Science.gov (United States)

    Owuamalam, Chuma; Zagefka, Hanna

    2013-11-01

    This article examines the implications of perceived negativity from members of a dominant outgroup on the world views and perceived relative group worth of members of disadvantaged groups. We hypothesized that concerns about the negative opinions a dominant outgroup is perceived to hold of the ingroup (i.e., meta-stereotypes) would undermine group members' views about societal fairness. We expected this trend to be mediated by recall of previous personal experiences of discrimination. We further hypothesized that members' views about societal fairness would predict their perception of the ingroup's worth relative to the outgroup - such that undermined views about societal fairness would be associated with lower perceived ingroup worth relative to the outgroup. Taken jointly, results from two studies using two real intergroup contexts support these hypotheses and are discussed in terms of their implications for the social mobility of members of disadvantaged groups. © 2012 The British Psychological Society.

  20. A New Look through the Glass Ceiling: Where Are the Women? The Status of Women in Management in Ten Selected Industries.

    Science.gov (United States)

    Dingell, John D.; Maloney, Carolyn B.

    The General Accounting Office (GAO) analyzed Current Population Survey (CPS) data for 1995-2000 to assess the situation of women managers in 10 industries that employ over 70 percent of women workers. Despite a sense of continued progress toward gender equality in the workplace, in the 10 industries employing 71 percent of United States (US) women…

  1. Beyond the glass ceiling. The top 25 women in Healthcare honorees take on key roles as significant change in the industry unfolds.

    Science.gov (United States)

    Kutscher, Beth; Landen, Rachel; Zigmond, Jessica

    2013-04-08

    At a time when a national conversation is focused on the gender imbalance atop most professions, healthcare can boast of having women in some of the most important policy and executive positions. Those honored in ourTop 25 Women in Healthcare program have a few lessons to share. "Be willing to take the job that everyone else isn't migrating to and make it work for you," says Marilyn Tavenner, acting CMS administrator.

  2. Modelling of a thermally activated building system (TABS) combined with free-hanging acoustic ceiling units using computational fluid dynamics (CFD)

    DEFF Research Database (Denmark)

    Lacarte, Luis Marcos Domínguez; Fan, Jianhua

    2017-01-01

    . The active surfaces of TABS need to be as exposed as possible, but exposing bare concrete surfaces has a negative impact on the acoustic quality in the premises. Acoustic solutions capable of providing optimal acoustic comfort while allowing the heat exchange between the TABS and the room are desirable...... of the heat exchange between the TABS and the room and the occupants. The simulations are validated by comparison with full scale measurements in laboratory conditions. The study shows that for equivalent sound absorption levels, free-hanging vertical sound absorbers have a lower impact on the heat exchange......Thermally Activated Building Systems (TABS) have proven to be an energy-efficient solution to achieve optimal indoor thermal environment in buildings. This solution uses the building mass to store heat and by means of water pipes embedded in the concrete slabs adjust the temperature in the premises...

  3. Study of heating performance of radiant ceiling heating system and its impact on workers thermal comfort level of workers in typical industrial work shops

    Directory of Open Access Journals (Sweden)

    M. Aliabadi

    2013-08-01

    .Conclusion: Due to large space of these industrial units, producing appropriate heating by convection mechanism is too difficult and expensive. The results confirmed that if radiant heating system applied based on scientific design principles they could be effective in promotion of thermal comfort due to heating surrounding surface by radiant and also reducing fuel consumption.

  4. Ceiling-mounted personalized ventilation system integrated with a secondary air distribution system - a human response study in hot and humid climate

    DEFF Research Database (Denmark)

    Bin, Yang; Sekhar, S.C.; Melikov, Arsen Krikor

    2010-01-01

    performed with tropically acclimatized subjects in a Field Environmental Chamber. Thirty-two subjects performed normal office work and could choose to be exposed to four different PV airflow rates (4, 8, 12, and 16 L/s), thus offering themselves a reasonable degree of individual control. Ambient...

  5. Aqui tem violência? : as representações sociais de violência urbana dos moradores da Ceilândia

    OpenAIRE

    Paula, Jêniffer Carla de

    2011-01-01

    A violência é objeto de discussões nos mais variados espaços sociais. Muito se tem falado sobre segurança pública e mudanças de comportamento perante os índices de violência. Cresceu o debate sobre as formas de sociabilidade contemporânea e o sentimento de insegurança. A violência é um fenômeno polissêmico e multifacetado, sua definição varia quanto o meio social, o tempo, as pessoas envolvidas, seus valores e costumes. A violência urbana compreendida neste trabalho refere-se aos atos violent...

  6. Autoria, subjetividade e poder: devolução de dados em um centro de saúde na Guariroba (Ceilândia/DF

    Directory of Open Access Journals (Sweden)

    Soraya Fleischer

    2015-09-01

    Full Text Available ResumoA devolução, restituição ou compartilhamento pode significar, dentre outras possibilidades, entregar produtos aos partícipes de um empreendimento de pesquisa/extensão. A entrega de resultados não é uma prática nova na antropologia, embora ainda seja pouco usual, sistematizada e valorizada. Neste artigo, relato e discuto uma experiência de devolução de materiais de um projeto de extensão da antropologia, que foi desenvolvido dentro de um centro de saúde, na região periférica do Distrito Federal. As reações aos materiais foram muito diferentes do esperado pela equipe do projeto, mas ainda assim permitiu fazer avançar o diálogo entre os envolvidos e, mais do que isso, permitiu que o conhecimento sobre as relações de trabalho dentro dessa instituição de saúde fosse aprofundado. Não é somente porque foi logrado o aval de comitês de ética que as negociações sobre a entrada e permanência em projetos acadêmicos estão garantidas continuamente. As relações de subjetividade, poder e autoria permeiam qualquer iniciativa antropológica, antes de começá-la e muito depois de, supostamente, terminá-la.

  7. Breaking through the glass ceiling: the correlation between the self-diffusivity in and krypton permeation through deeply supercooled liquid nanoscale methanol films.

    Science.gov (United States)

    Smith, R Scott; Matthiesen, Jesper; Kay, Bruce D

    2010-03-28

    Molecular beam techniques, temperature-programmed desorption (TPD), and reflection absorption infrared spectroscopy (RAIRS) are used to explore the relationship between krypton permeation through and the self-diffusivity of supercooled liquid methanol at temperatures (100-115 K) near the glass transition temperature, T(g) (103 K). Layered films, consisting of CH(3)OH and CD(3)OH, are deposited on top of a monolayer of Kr on a graphene covered Pt(111) substrate at 25 K. Concurrent Kr TPD and RAIRS spectra are acquired during the heating of the composite film to temperatures above T(g). The CO vibrational stretch is sensitive to the local molecular environment and is used to determine the supercooled liquid diffusivity from the intermixing of the isotopic layers. We find that the Kr permeation and the diffusivity of the supercooled liquid are directly and quantitatively correlated. These results validate the rare-gas permeation technique as a tool for probing the diffusivity of supercooled liquids.

  8. Expedient Methods for Rattle-Proofing Certain Housing Components

    Science.gov (United States)

    1987-12-01

    MISCELLANEOUS ITEMS Dropped Ceilings Standard home ceilings constructed of plasterboard nailed to horizontal joists should not rattle. Some owners...properly. Other types of lighting fixtures hung from standard plasterboard ceilings are discussed under Light Fixtures below. Picture Frames and

  9. Nível de aptidão física em crianças de 08 a 12 anos da Escola Classe 22 de Ceilândia-DF

    OpenAIRE

    Oliveira, Thales Lelis de

    2013-01-01

    A constante preocupação com a qualidade de vida das pessoas vem crescendo a cada dia, uma vez que inúmeros estudos vem a público investigar a aptidão física principalmente em crianças e adolescentes. A aptidão física pode ser entendida como “a capacidade de o indivíduo executar suas atividades, com um melhor desempenho, evitando assim o desconforto durante a execução da atividade.” A aptidão física pode ser abordada de duas maneiras: Aptidão física relacionada à saúde e aptidão física voltada...

  10. New building standard for electric floor and ceiling heating systems. Pt. 1. DIN VDE 0100 part 520 A 3. Neue Errichtungsnorm fuer elektrische Fussboden- und Deckenheizungen. T. 1. DIN VDE 0100 Teil 520 A 3

    Energy Technology Data Exchange (ETDEWEB)

    Nienhaus, H. (RWE Energie AG, Essen (Germany, F.R.). Abt. Anwendungstechnik)

    1991-05-01

    The DIN 44576 deals with the planning, dimensioning and partly also construction of electric underfloor storage heatings. Although remarks about safety of operation are contained uncertainty exists in view of the measures to be applied for the protection of human beings, domestic and economically useful animals against too high body currents and temperature increases as well as for the protection of things against fire. This information is contained in the DIN VDE 100, Part 520 A3 (selection and construction of electrical equipment; cables, lines, busbars). Part 1 of the serialized report describes in detail the following subjects: protection against hazardous body currents; selection and construction of heating elements with regard to protection by cutting-off or indication; thermal resistivity and fire protection; selection and laying of heating elements depending on the type of heating system; general information on the laying of heating elements. (BWI).

  11. Cost-benefit analysis of stricter emission ceilings for air pollutants. National evaluation for the revision of the Gothenburg Protocol; Kosten en baten van strengere emissieplafonds voor luchtverontreinigende stoffen. Nationale evaluatie voor de herziening van het Gothenburg Protocol

    Energy Technology Data Exchange (ETDEWEB)

    Smeets, W.

    2012-06-15

    The Netherlands experiences high benefits of strict European emission targets for air pollutants. The Dutch live longer and are healthier because of extra emission reductions. In addition, damage to nature decreases. This emerges from a cost-benefit analysis of a number of possible variants for tightening emission targets by 2020 in the context of the revision of the Gothenburg Protocol [Dutch] Nederland ondervindt hoge baten van strenge Europese emissiedoelen voor luchtverontreinigende stoffen. Nederlanders leven langer en gezonder door extra emissiereducties. Daarnaast neemt de schade aan de natuur af. Dit blijkt uit een kosten-batenanalyse van een aantal mogelijke varianten voor aanscherping van emissiedoelen per 2020 in het kader van de herziening van het Gothenburg protocol.

  12. Breaking the Glass Ceiling in Oklahoma Higher Education: A Case Study of Kate Galt Zaneis, the First Woman President of a Public Four-Year College or University in the United States

    Science.gov (United States)

    Smarr, Debbie L.

    2011-01-01

    Women's leadership within higher education continues to be the focus of research and essays. A look into the lives of past women leaders in higher education can provide a potential "road-map" for aspiring women to follow as they develop their leadership style to aid in their upward mobility. The study of the first woman to lead a public…

  13. A Test program to Determine the Feasibility of Installing Utility Meters in Military Family Housing, Developing Energy Ceilings, and Operating a Penalty Billing System for Occupants who Overconsume Energy. Volume I.

    Science.gov (United States)

    1980-03-01

    impractical. The cost involved in placing the families in temporary housing or motels and the hardship the temporary relocation would have had on the...was further exacer- bated in 1979 by an additional pay-raise cap of 7 percent as opposed to the 10.4 percent increase the President’s Pay Agent...that a threshold of pay dissatisfaction has been achieved among military people that may be exacer- bated by new proposals that would be perceived as

  14. 45 CFR 1611.3 - Financial eligibility policies.

    Science.gov (United States)

    2010-10-01

    ... years and make adjustments as necessary. The recipient shall implement procedures consistent with its... policies, every recipient shall establish reasonable asset ceilings for individuals and households. In establishing asset ceilings, the recipient may exclude consideration of a household's principal residence...

  15. 48 CFR 16.201 - General.

    Science.gov (United States)

    2010-10-01

    ... for an adjustable price may include a ceiling price, a target price (including target cost), or both. Unless otherwise specified in the contract, the ceiling price or target price is subject to adjustment...

  16. Aiming high but keeping costs low.

    Science.gov (United States)

    Hough, Steve; Nicholls, Andrew

    2010-04-01

    Steve Hough, national sales manager, CEP Claddings, and Andrew Nicholls, sales director, CEP Ceilings, explain how modern cladding and ceiling materials can enhance the appearance of modern hospital buildings while offering practical, cost-saving, and environmental advantages.

  17. An Algorithm for the Vertical Structure of Aerosol Extinction in the Lowest Kilometer of the Atmosphere: Rev. 1

    Science.gov (United States)

    2017-11-01

    to be used. The statement of sky conditions can contain three pieces of information: the cloud ceiling height (or absence of a cloud ceiling), the...function of altitude. The statement of sky conditions can contain the following pieces of information: cloud ceiling height (or lack of a cloud ceiling...Structure ofAerosol Extinction in the Lowest Kilometerof the Atmosphere: Rev. 1 by Melvin G Heaps and Robert D Johnson US Army Electronics Research and

  18. Navigating the Labyrinth

    Science.gov (United States)

    Eagly, Alice H.; Carli, Linda L.

    2009-01-01

    The glass ceiling has shattered. The metaphor of a glass ceiling, an absolute barrier to women's advancement, is seriously outdated. Some women do make it to high positions as big-city superintendents of schools, governors, secretaries of state and, even occasionally, as Fortune 500 CEOs. The glass ceiling metaphor has great appeal but is…

  19. A case for the introduction of numerical fiscal rules in the Serbian Constitution

    Directory of Open Access Journals (Sweden)

    Begović Boris

    2017-01-01

    Full Text Available The recommendation of numerical fiscal rules in Serbia, presented in this paper, is based on the inherent bias of fiscal policy towards expenditure, and consequently continuous fiscal deficit and excessive sovereign debt. It is recommended that simple and straightforward numeric fiscal rules should be introduced into the Serbian Constitution. There should be two cumulative numerical fiscal rules, the first regarding the ceiling on sovereign debt and the second regarding the ceiling on net new borrowing. Neither of the rules may be violated. The ceiling on the debt level should be prescribed by the Constitution. The ceiling on new net borrowing should depend on the distance of the sovereign debt from the debt ceiling. An illustrative example is provided, with a debt ceiling of 60%. However, the Fiscal Council should specify a specific sovereign debt ceiling as part of the proposed constitutional amendment.

  20. In the framework of a CO{sub 2} emission prevention policy, what would be the cost of a nuclear capacity ceiling?; Dans le cadre d'une politique de lutte contre les emissions de CO{sub 2}, quel serait le cout d'une stabilisation de la capacite nucleaire?

    Energy Technology Data Exchange (ETDEWEB)

    Prevot, A. [Mines Paris Tech, 60 Boulevard Saint-Michel 75006 Paris (France)

    2011-07-01

    If we want to cut French CO{sub 2} emissions by three or four, refusal to increase nuclear capacity would-put us on a path that would require a major decrease in energy consumption in transport, lodging and the tertiary sector (with a crease of over 20 % in distances travelled per inhabitant by road and air, consumption in the construction industry 45 % lower than its trend rate) and would require spending approximately 30 billion Euros more per year than an alternative approach where mobility is not reduced and nuclear capacity is allowed to expand. (author)

  1. ¿Techos de cristal y escaleras resbaladizas?: Desigualdades de género y estrategias de cambio en SESPAS Glass ceiling and slippery stairs?: Gender inequalities and strategies for change in the Spanish Society of Public Health and Health Services Administration

    Directory of Open Access Journals (Sweden)

    C. Colomer Revuelta

    2002-08-01

    Full Text Available En las sociedades científicas, como en otros espacios públicos, la presencia de las mujeres en la toma de decisiones es menor que la de los varones. Describimos la situación en la Sociedad Española de Salud Pública y Administración Sanitaria (SESPAS donde, a pesar de existir un 40% de socias, las mujeres han estado escasamente representadas en los puestos donde se toman las decisiones y en los de reconocimiento profesional. Se explica el proceso de cambio que se ha impulsado en los últimos años y algunos de los efectos de las acciones emprendidas. Visualizar las desigualdades de género existentes provocó el debate y el interés por la acción. Se ha establecido un grupo de trabajo de género y salud pública. En los dos últimos años se han incorporado más mujeres a los puestos de poder y de reconocimiento profesional en SESPAS.In scientific societies, as in other social fields, women's participation in decision making is lower than that of men. We describe the situation in SESPAS (Spanish Society of Public Helath and Health Services Administration where, despite representing a 40% of its members, very few women have been in positions in which decisions are taken or in those of professional recognition. The process of change implemented during recent years and some of the effects of the actions taken are presented. Making the existing inequalities known has generated debate and interest in the intervention. A gender and public health working group was set up. In the last two years more women have been prometed to more senior positions in SESPAS.

  2. Cam Tavan Sendromu ve Kadınların Üst Düzey Yönetici Pozisyonuna Yükselmelerindeki Engeller: Balıkesir İli Örneği(Glass Ceiling Syndrome and the Obstacles Facing Women’s Advancement to Senior Management Positions: Evidence From Balikesir

    Directory of Open Access Journals (Sweden)

    Edip ÖRÜCÜ

    2007-01-01

    Full Text Available Examining the reasons why women’s presentation in senior management levels and strategically important positions is lower compared to men constitutes the aim of this study. Conducting a literature survey, the concept of “Glass Ceiling” has been explained and the obstacles confronting women in preferment to senior management positions have been presented depending on the related studies held in Turkey and other countries. In the application part of the study, under the light of the findings from the literature, a survey covering 200 employees, of whom 103 male and 97 female, has been conducted in order to find out about the opinions of employees in Balıkesir on the obstacles in question. The findings have revealed that the limited horizon of leadership and managerial capability, excessive familial responsibilities, and the “queen bee” syndrome are the main obstacles that hamper women in the progress towards senior level managerial positions.

  3. Daylight Redirecting Window Films

    Science.gov (United States)

    2013-09-01

    The open office area (Figure 9) is 48’ deep with a sloped ceiling designed to disperse light down into the cubicle workstations. The sloped ceiling...Ceiling Ht. 9’ , 10’* Window VT 40%, 70%* Office Furniture 60” Cubicle * Lighting Schedule ASHRAE 90.1* Blinds Control Always Closed, Automated...2829 9. SPONSORING / MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR/MONITOR’S ACRONYM(S) ESTCP Program Office Dr. James

  4. Assessment of Mobility in Older People Hospitalized for Medical Illness Using de Morton Mobility Index and Cumulated Ambulation Score-Validity and Minimal Clinical Important Difference

    DEFF Research Database (Denmark)

    Trøstrup, Jeanette; Andersen, Helle; Kam, Charlotte Agger Meiner

    2017-01-01

    and carrying out targeted interventions that ensure mobilization during hospital admission. The aim of this study was to determine convergent validity, known group validity, floor and ceiling effects, and anchor-based minimal clinically important difference (MCID) of the more time-consuming de Morton Mobility...... = 0.60, P nursing home were associated with significantly lower DEMMI and CAS scores. No floor or ceiling effects were present in the DEMMI, while a ceiling effect was present in the CAS. The MCID scores...

  5. John Rodgers WBAS, Honolulu, Hawaii. Revised Uniform Summary of Surface Weather Observations (RUSSWO), Parts A-F

    Science.gov (United States)

    1967-12-05

    EDITIONS OF 114S FORM ARE OBSOLETE ... ..... , TOM: - ____________ -w! - ’r.-* 4 W- - - -- - - - -- - - - - - - - - - - - -- - -- - * DTAt URSS IISO CEILING...THIS FORM ARE OBSOLETE I 4. L2 -v - - - - - - - - - - - - - - - - - - - - - - - - - --- -- * DTAt URSS IISO CEILING VERSUS VISIBILITY ASHEVILL19 No...yA, 4 e #~;0 i-*iWN WA PRCSSN DIISO OMAv URSS IISO CEILING VERSUS VISIBILITY41 ASHFVILLE# No C. 28801 22S21L. W0LULU OANU/JOHN RODG0ERS jIOAS 40

  6. Characteristics and performance of thin LaBr3(Ce) crystal for hard X-ray astronomy

    Science.gov (United States)

    Manchanda, R. K.

    2011-01-01

    We have developed a new detector using thin lanthanum bromide crystal (32 × 3 mm) for use in X-ray astronomy. The instrument was launched in high altitude balloon flight on two different occasions, December 21, 2007, which reached a ceiling altitude of 4.3 mbs and April 25, 2008 reaching a ceiling altitude 2.8 mbs. The observed background counting rate at the ceiling altitude of 4 mbs was ˜4 × 10-3 ct cm-2 s-1 keV-1 sr-1. This paper describes the details of the experiment, the detector characteristics, and the background behaviour at the ceiling altitude.

  7. 48 CFR 17.106-1 - General.

    Science.gov (United States)

    2010-10-01

    ... and profit objectives commensurate with contractor risk and financing arrangements. (c) Cancellation... determining cancellation ceilings, the contracting officer must estimate reasonable preproduction or startup...

  8. 9 CFR 3.2 - Indoor housing facilities.

    Science.gov (United States)

    2010-01-01

    ... odors, drafts, ammonia levels, and moisture condensation. Ventilation must be provided by windows, vents..., and any other surfaces in contact with the animals, must be impervious to moisture. The ceilings of indoor housing facilities must be impervious to moisture or be replaceable (e.g., a suspended ceiling...

  9. 24 CFR 3280.511 - Comfort cooling certificate and information.

    Science.gov (United States)

    2010-04-01

    ... delivered to the manufactured home supply air duct system. Information necessary to calculate cooling loads... is based on entrances to the air supply duct at other than the furnace plenum, the manufacturer shall... U Ceilings and roofs of dark color U Floors U Air ducts in floor U Air ducts in ceiling U Air ducts...

  10. Thermal Conditions in a Simulated Office Environment with Convective and Radiant Cooling Systems

    DEFF Research Database (Denmark)

    Mustakallio, Panu; Bolashikov, Zhecho Dimitrov; Kostov, Kalin

    2013-01-01

    The thermal conditions in a two person office room were measured with four air conditioning systems: chilled beam (CB), chilled beam with radiant panel (CBR), chilled ceiling with ceiling installed mixing ventilation (CCMV) and four desk partition mounted local radiant cooling panels with mixing...

  11. 21 CFR 1301.72 - Physical security controls for non-practitioners; narcotic treatment programs and compounders for...

    Science.gov (United States)

    2010-04-01

    ... least 8 inches of reinforced concrete or other substantial masonry, reinforced vertically and horizontally with 1/2-inch steel rods tied 6 inches on center, or the structural equivalent to such reinforced... attached to the structural ceiling of the building. A lighter gauge mesh may be used for the ceilings of...

  12. 76 FR 42688 - Updating State Residential Building Energy Efficiency Codes

    Science.gov (United States)

    2011-07-19

    ... IECC in general and the building thermal envelope (ceilings, walls, doors, windows, foundations, etc... correspond to those already in the code for steel walls. Another example is the relocation of the 51 pages of...\\ (46.5 m\\2\\). Sunroom additions are permitted to have ceiling, wall insulation, and window U-factor...

  13. 77 FR 49712 - Amendment to Class B Airspace; Salt Lake City, UT

    Science.gov (United States)

    2012-08-17

    ... operational and safety benefit of raising the ceiling based on no actual mid-air collision or conflict resolution data having been provided to support taking this action. ] This Class B airspace area modification... B airspace ceiling as noted above, there are alternatives to installing a supplemental oxygen system...

  14. Experimental study of the heat transfers and passive cooling potential of a ventilated plenum designed for uniform air distribution

    DEFF Research Database (Denmark)

    Hviid, Christian Anker; Lessing, Julian

    2016-01-01

    suspended ceiling to uniformly distribute the supply air to the occupied zone. This, in effect, increases the thermal mass of the room because the upper slab of the room no longer is isolated from the occupied zone. In this study, the cooling potential of a diffuse ceiling ventilation system is i...

  15. 48 CFR 16.403-1 - Fixed-price incentive (firm target) contracts.

    Science.gov (United States)

    2010-10-01

    ... (firm target) contracts. 16.403-1 Section 16.403-1 Federal Acquisition Regulations System FEDERAL... Fixed-price incentive (firm target) contracts. (a) Description. A fixed-price incentive (firm target) contract specifies a target cost, a target profit, a price ceiling (but not a profit ceiling or floor), and...

  16. 48 CFR 52.230-6 - Administration of Cost Accounting Standards.

    Science.gov (United States)

    2010-10-01

    ... contract prices, target prices and cost ceilings; and (ii) Estimated decreased cost accumulations are the basis for decreasing contract prices, target prices and cost ceilings. (g) For any noncompliant cost... Certificate of Current Cost or Pricing Data, whichever is earlier. (End of clause) [70 FR 11759, Mar. 9, 2005...

  17. 75 FR 9114 - Defense Federal Acquisition Regulation Supplement; Additional Requirements Applicable to...

    Science.gov (United States)

    2010-03-01

    ... Council, Crystal Square 4, Suite 200A, 241 18th Street, Arlington, VA 22202-3402. Comments received.... (ix) In the case of a contract with a cancellation ceiling in excess of $100 million, if the budget... cancellation ceiling established in the contract-- (A) The head of the agency shall, as part of this...

  18. Comparison between Different Air Distribution Systems

    DEFF Research Database (Denmark)

    Nielsen, Peter V.

    The aim of an air conditioning system is to remove excess heat in a room and replace room air with fresh air to obtain a high air quality. It is not sufficient to remove heat and contaminated air, it is also necessary to distribute and control the air movement in the room to create thermal comfort...... in the occupied zone. Most air distribution systems are based on mixing ventilation with ceiling or wall-mounted diffusers or on displacement ventilation with wall-mounted low velocity diffusers. New principles for room air distribution were introduced during the last decades, as the textile terminals mounted...... in the ceiling and radial diffusers with swirling flow also mounted in the ceiling. This paper addresses five air distribution systems in all, namely mixing ventilation from a wallmounted terminal, mixing ventilation from a ceiling-mounted diffuser, mixing ventilation from a ceiling-mounted diffuser...

  19. Testing and thermal modeling of radiant panels systems as commissioning tool

    International Nuclear Information System (INIS)

    Fonseca Diaz, Nestor; Cuevas, Cristian

    2010-01-01

    This paper presents the results of a study performed to develop a thermal modeling of radiant panels systems to be used in situ, as diagnosis tool in commissioning processes to determine the main operating conditions of the system in cooling or heating mode. The model considers the radiant panels as a finned heat exchanger in dry regime. By using as inputs the ceiling and room dimensions, the radiant ceiling material properties and the measurements of air and water mass flow rates and temperatures, the model is able to calculate the radiant ceiling capacity, ceiling surface average temperature, water exhaust temperature and resultant temperature as a comfort indicator. The modeling proposed considers combined convection, perforation effect and a detailed radiative heat exchange method for radiant ceiling systems. An example of each system considered in this study is shown, illustrating the validation of the model. A sensitive analysis of the model is performed.

  20. Is There a ‘Glass Ceiling’ for Female Managers in Singapore Organizations?

    Directory of Open Access Journals (Sweden)

    Vlado Dimovski

    2010-12-01

    Full Text Available This study presents an overview of glass-ceiling type barriers inorganizations based on the perceptions of a sample of Singaporemid-level women managers. Previous studies indicated the existenceof a glass ceiling in organizations and presented strategicrecommendations with regard to what corporations could do toremove or reduce the glass ceiling. This study investigates howwomen in middle management perceive their career advancementopportunities and what they consider their organizations tobe doing to support their advancement. Glass ceiling and informalstructures in the organizations will be analyzed from the aspectsof corporate climate, corporate practices, and corporate culture.The relevant questions are derived from the model developed byBergman and Hallberg (2002. This study aims to answer whetherthere is a glass ceiling present in Singapore companies. The studybegins with an introduction of the concept of a glass ceiling thatprevents women from advancing, and then continues with previousstudies on corporate climate, corporate practices and corporateculture, and data analysis of samples from Singapore organizations.The findings show that women middle managers inSingapore organizations face a glass ceiling in their working environmentwhich, for example, inhibits the promotion of femalemanagers, and entails a barrier to the career development opportunitiesof women presents that women do not have enough organizationalsupport, including networking, mentoring, and familyfriendly initiatives.

  1. Real-time modeling of heat distributions

    Energy Technology Data Exchange (ETDEWEB)

    Hamann, Hendrik F.; Li, Hongfei; Yarlanki, Srinivas

    2018-01-02

    Techniques for real-time modeling temperature distributions based on streaming sensor data are provided. In one aspect, a method for creating a three-dimensional temperature distribution model for a room having a floor and a ceiling is provided. The method includes the following steps. A ceiling temperature distribution in the room is determined. A floor temperature distribution in the room is determined. An interpolation between the ceiling temperature distribution and the floor temperature distribution is used to obtain the three-dimensional temperature distribution model for the room.

  2. Modeling long-term yield trends of Miscanthusxgiganteus using experimental data from across Europe

    DEFF Research Database (Denmark)

    Lesur, Claire; Jeuffroy, Marie-Hélène; Makowski, David

    2013-01-01

    . giganteus is known to have an establishment phase during which annual yields increased as a function of crop age, followed by a ceiling phase, the duration of which is unknown. We built a database including 16 European long-term experiments (i) to describe the yield evolution during the establishment...... and the ceiling phases and (ii) to determine whether M. giganteus ceiling phase is followed by a decline phase where yields decrease across years. Data were analyzed through comparisons between a set of statistical growth models. The model that best fitted the experimental data included a decline phase...

  3. Cross-cultural adaptation and validation of the French version of the Hip disability and Osteoarthritis Outcome Score (HOOS) in hip osteoarthritis patients

    DEFF Research Database (Denmark)

    Ornetti, P; Parratte, S; Gossec, L

    2010-01-01

    for total hip replacement (THR) (surgery group). The psychometric properties assessed were feasibility: percentage of responses, floor and ceiling effects; internal consistency using Cronbach's alpha; construct validity by evaluating correlations with the Lequesne's index and the visual analogic scale (VAS...... of item responses was excellent (99%). Neither a floor nor a ceiling effect was observed, except for a ceiling effect (17.8% of patients with worst possible score) observed prior to surgery in the sport and recreation subscale. The internal consistency was good for four of the five HOOS subscales...

  4. Night time cooling by ventilation or night sky radiation combined with in-room radiant cooling panels including phase change materials

    DEFF Research Database (Denmark)

    Bourdakis, Eleftherios; Olesen, Bjarne W.; Grossule, Fabio

    constructed at the Technical University of Denmark, where the outside PVT panels are connected through a storage tank to in-room radiant ceiling panels. The radiant ceiling panels include phase change material (PCM) and embedded pipes for circulating water. Due to the phase change material it is possible...... depending on the sky clearness. This cooling power was enough to remove the stored heat and regenerate the ceiling panels. The validation simulation model results related to PCM were close to the corresponding results extracted from the experiment, while the results related to the production of cold water...

  5. Natural Attenuation of the Persistent Chemical Warfare Agent ...

    Science.gov (United States)

    Report This project studied the influence of temperature on the natural attenuation of VX from five types of porous/permeable materials: unsealed concrete, plywood, rubber escalator handrail, high density polyethylene (HDPE) plastic, and acoustic ceiling tile.

  6. Multiplexing of spatial modes in the mid-IR region

    CSIR Research Space (South Africa)

    Gailele, Lucas M

    2017-02-01

    Full Text Available ceiling in the near future. Communications using orbital angular momentum (OAM) carrying modes offers in finite dimensional states, providing means to increase link capacity by multiplexing spatially overlapping modes in both the azimuthal and radial...

  7. Throwing open the doors

    Energy Technology Data Exchange (ETDEWEB)

    Nadkarni, S.

    2000-03-01

    Expansion is on the cards, as the Indian government, in a surprise move, has thrown open the coal processing sector to foreign interests, and raised the ceiling in a few select areas, such as prospecting. 1 photo.

  8. 75 FR 11516 - Notice of Petitions by Firms for Determination of Eligibility to Apply for Trade Adjustment...

    Science.gov (United States)

    2010-03-11

    ... replacement Framingham, MA fluorescent diffusers. Fluorolite 01701. Manufactures acrylic ceiling panels.... Precision Tool, Die & Machine 6901 Preston 3/3/2010 The firm produces steel parts that are put Co. Inc. d/b...

  9. Getting to the "C suite". What will it take to see diversity across health care leadership?

    Science.gov (United States)

    Larson, Laurie

    2006-03-01

    Although diversity in health care leadership has improved greatly over the past 40 years, midcareer minorities still encounter a "glass ceiling" between director-level jobs and the top four or five "chief" executive positions.

  10. 7 CFR 1955.116 - Requirements for sale of property not meeting decent, safe and sanitary (DSS) standards (housing).

    Science.gov (United States)

    2010-01-01

    ...., as appropriate. —Install *. * Insert new roof, foundation, sump pump, bathroom fixtures, etc., as appropriate. —Install R-* insulation in basement walls or ceiling, R-* insulation in attic, and storm windows...

  11. 18 CFR 367.57 - Equipment.

    Science.gov (United States)

    2010-04-01

    ... piers and foundations that are designed to be as permanent as the buildings that house the equipment, or... walls, ceilings or floors or without in some way impairing the building, must be included in the...

  12. 76 FR 6149 - Federal Housing Administration (FHA): Temporary Exemption From Compliance With FHA's Regulation...

    Science.gov (United States)

    2011-02-03

    ... the foundation, floor, ceiling, walls and roof; ii. The exterior, including siding, doors, windows... several months. Actual property defects (issues with the actual property such as holes in the walls...

  13. 7 CFR 1924.253 - Definitions.

    Science.gov (United States)

    2010-01-01

    ... significantly affect the basic integrity of the dwelling or unit such as in the foundation, footings, basement walls, slabs, floors, framing, walls, ceiling, or roof. (2) Major deficiencies in the utility components...

  14. 78 FR 66852 - Housing Assistance Due to Structural Damage

    Science.gov (United States)

    2013-11-07

    ... residence. This includes real property components, such as the foundation, exterior walls, and roof. (B... limited to, the structure's floors, walls, ceilings, and cabinetry. (F) The structure's access and egress...

  15. DMEPOS Fee Schedule

    Data.gov (United States)

    U.S. Department of Health & Human Services — The list contains the fee schedule amounts, floors, and ceilings for all procedure codes and payment category, jurisdication, and short description assigned to each...

  16. DME Prosthetics Orthotics, and Supplies Fee Schedule

    Data.gov (United States)

    U.S. Department of Health & Human Services — Durable Medical Equipment, Prosthetics-Orthotics, and Supplies Fee Schedule. The list contains the fee schedule amounts, floors, and ceilings for all procedure codes...

  17. (Ne)rovnost mužů a žen v práci

    Czech Academy of Sciences Publication Activity Database

    Křížková, Alena

    č. 9 (2003), s. 24-25 R&D Projects: GA AV ČR IBS7028002 Institutional research plan: CEZ:AV0Z7028912 Keywords : gender inequality * glass ceiling * gender stereotyping Subject RIV: AO - Sociology, Demography

  18. Asbestos Survey Results for Fort Douglas, Utah. Fort Douglas Environmental Investigation/Alternatives Analysis. Volume 2

    National Research Council Canada - National Science Library

    1991-01-01

    Partial contents: Air-Cell Insulation, Joint Compound, Joint Compound on Fiberglass, MAG-Block Insulation, Paper Pipe Wrap Insulation, Wool Pipe Wrap Insulation, Soundproofing Material, Adhesive Materials, Ceiling...

  19. "... mio capital nemico a causa della professione". Mathey´s not altogether friendly encounter in Prague with Domenico Egidio Rossi

    Czech Academy of Sciences Publication Activity Database

    Mádl, Martin

    -, č. 2 (2014), s. 139-147 ISSN 1805-3742 R&D Projects: GA ČR GAP409/12/2568 Institutional support: RVO:68378033 Keywords : Baroque * architecture * ceiling painting Subject RIV: AL - Art, Architecture, Cultural Heritage

  20. Creating Library Interiors: Planning and Design Considerations.

    Science.gov (United States)

    Jones, Plummer Alston, Jr.; Barton, Phillip K.

    1997-01-01

    Examines design considerations for public library interiors: access; acoustical treatment; assignable and nonassignable space; building interiors: ceilings, clocks, color, control, drinking fountains; exhibit space: slotwall display, floor coverings, floor loading, furniture, lighting, mechanical systems, public address, copying machines,…

  1. Asbestos Exposure and Cancer Risk

    Science.gov (United States)

    ... steam pipes, and hot water pipes. The automotive industry uses asbestos in vehicle brake shoes and clutch pads. Asbestos has also been used in ceiling and floor tiles; paints, coatings, and adhesives; and plastics. In addition, asbestos has ...

  2. Asbestos Standard for the Construction Industry

    National Research Council Canada - National Science Library

    1995-01-01

    .... In the construction industry, asbestos is found in installed products such as shingles, floor tiles, cement pipe and sheet, roofing felts, insulation, ceiling tiles, fire-resistant drywall, and acoustical products...

  3. Comprehensive analysis of the column station with depth variation

    Directory of Open Access Journals (Sweden)

    V.D. Petrenko

    2011-12-01

    Full Text Available In the article the results of complex analysis of the columnar station with variation of depth contour interval with research of mobile loading influencing on ceiling are represented.

  4. Ontology for Life-Cycle Modeling of Electrical Distribution Systems: Model View Definition

    Science.gov (United States)

    2013-06-01

    more than 100 sessions at regional and national conventions . He has taught architectural specifications at Harvard University Graduate School of...Equipment List Lighting Layout: Surface finish, clearance Raceway: Above ceiling clearance, wall construction type ( masonry /studs, etc.) Current

  5. 41 CFR 102-85.35 - What definitions apply to this part?

    Science.gov (United States)

    2010-07-01

    ... workspace excludes space owned or leased by private sector entities performing work on Government contracts... features such as exposed ceilings, unfinished perimeter and few dividing partitions. Warehouse space also...

  6. High Bay Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — This laboratory is a specially constructed facility with elevated (37 feet) ceilings and an overhead catwalk, and which is dedicated to research efforts in reducing...

  7. Air Force Journal of Logistics. Volume 34, Numbers 3 and 4, 2011

    Science.gov (United States)

    2011-01-01

    Greek Parthenon ) to illustrate officer professional development. The pillars are based on officer qualifications, assignments, and education. Unlike... Parthenon ceiling). The Navy lacks a designated logistics officer corps; however, the Navy Supply Corps performs many of the same functions (supply

  8. A Multiscale Approach to Magnesium Intercalation Batteries: Safer, Lighter, and Longer-Lasting

    Data.gov (United States)

    National Aeronautics and Space Administration — Lithium-ion batteries are the gold-standard for electrochemical energy storage; however, the ceiling for their storage potential is constrained by the most...

  9. Women and work: a ten year retrospective.

    Science.gov (United States)

    MacRae, Nancy

    2005-01-01

    A look back, after a decade, at the issues surrounding women and work. Work options, childcare and family concerns, the glass ceiling, sexual harassment, women entrepreneurs, race and poverty, unpaid work, and women with disabilities are discussed.

  10. An examination of Gender Diversity and leadership within senior management positions: New insights from the Bahraini Financial Sectors

    OpenAIRE

    Al-Halwachi, Layla Faisal

    2016-01-01

    This thesis was submitted for the award of Doctor of Philosophy and was awarded by Brunel University London. This study explores the conceptualisation of glass ceiling by Bahraini female managers in their bid to attain senior management position as a career advancement. It assesses their perception of the concept of the glass ceiling, and what coping mechanisms adopted in eliminating barriers and empowering women to attain senior executive positions in the finance sector. The s...

  11. Developmental Networks, Black Feminist Thought, and Black Women Federal Senior Executives: A Case Study Approach

    OpenAIRE

    Easley, Brian Gerard

    2011-01-01

    Abstract Private and public sector organizations have become increasingly interested in promoting diversity. Due to barriers attributed to race and gender, women and minorities often find it hard to break through the glass ceiling. Mentoring is a tool to assist with breaking through the glass ceiling. This interest has led to extensive growth in mentoring research and the design of a more expanded concept, developmental networks. Little empirical research informs our understanding of B...

  12. Methodology to quantify the effect of policies and measures in emission reductions from road transport

    OpenAIRE

    Lumbreras Martin, Julio; Guijarro Lomeña, Alberto; López Martínez, José María; Rodríguez Hurtado, María Encarnación

    2008-01-01

    Atmospheric emissions from road transport have increased all around the world since 1990 more rapidly than from other pollution sources. Moreover, they contribute in more than 25% to total emissions, in the majority of European countries. This situation confirms the importance of road transport when complying with emission ceilings (e.g. Kyoto Protocol and National Emissions Ceilings Directive). The developed methodology illustrates the effect on transport emissions of the most influential va...

  13. The Road Less Traveled: Exploring the Experiences and Successes of Women Leaders in Homeland Security

    Science.gov (United States)

    2013-03-01

    from unconscious stereotypes, inadequate access to support networks, inflexible workplace structures, and sexual harassment .26 Minority women cited...encounter difficulty. One subject stated that she felt unsuccessful because she had failed to break through the glass ceiling to achieve the highest...possible level of leadership in her organization. This subject feels that a glass ceiling still exists as it relates to women, especially in a public

  14. The Diabetes Treatment Satisfaction Questionnaire change version (DTSQc evaluated in insulin glargine trials shows greater responsiveness to improvements than the original DTSQ

    Directory of Open Access Journals (Sweden)

    Valentine John

    2007-10-01

    Full Text Available Abstract Background The results of using status measures to identify any changes in treatment satisfaction strongly suggest a need for specific change instruments designed to overcome the ceiling effects frequently observed at baseline. Status measures may leave little room to show improvement in situations where baseline ceiling effects are observed. A change version of the DTSQ (DTSQc is compared here with the original status (now called DTSQs version to test the instruments' comparative ability to demonstrate change. Methods Two multinational, openlabel, randomised-controlled trials (one for patients with type 1 diabetes, the other for type 2 compared new, longer-acting insulin glargine with standard NPH basal insulin. The DTSQs was completed at baseline and the DTSQs and DTSQc at final visit by 351 English- and German-speaking patients. DTSQc scores were compared with change from baseline for the DTSQs, using 3-way analysis of variance, to examine Questionnaire, Treatment and Ceiling effects (i.e. baseline scores at/near ceiling. Results and discussion Significant Questionnaire effects and a Questionnaire × Ceiling interaction (p Conclusion The DTSQc, used in conjunction with the DTSQs, overcomes the problem of ceiling effects encountered when only the status measure is used and provides a means for new treatments to show greater value than is possible with the DTSQs alone.

  15. Measuring fire size in tunnels

    International Nuclear Information System (INIS)

    Guo, Xiaoping; Zhang, Qihui

    2013-01-01

    A new measure of fire size Q′ has been introduced in longitudinally ventilated tunnel as the ratio of flame height to the height of tunnel. The analysis in this article has shown that Q′ controls both the critical velocity and the maximum ceiling temperature in the tunnel. Before the fire flame reaches tunnel ceiling (Q′ 1.0), Fr approaches a constant value. This is also a well-known phenomenon in large tunnel fires. Tunnel ceiling temperature shows the opposite trend. Before the fire flame reaches the ceiling, it increases very slowly with the fire size. Once the flame has hit the ceiling of tunnel, temperature rises rapidly with Q′. The good agreement between the current prediction and three different sets of experimental data has demonstrated that the theory has correctly modelled the relation among the heat release rate of fire, ventilation flow and the height of tunnel. From design point of view, the theoretical maximum of critical velocity for a given tunnel can help to prevent oversized ventilation system. -- Highlights: • Fire sizing is an important safety measure in tunnel design. • New measure of fire size a function of HRR of fire, tunnel height and ventilation. • The measure can identify large and small fires. • The characteristics of different fire are consistent with observation in real fires

  16. Experimental study of hydronic panels system and its environment

    Energy Technology Data Exchange (ETDEWEB)

    Diaz, Nestor Fonseca [University of Liege Belgium, Thermodynamics Laboratory, Campus du Sart Tilman, Bat: B49 - P33, B-4000 Liege (Belgium); Universidad Tecnologica de Pereira, Facultad de Ingenieria Mecanica (Colombia)

    2011-01-15

    An experimental analysis of hydronic cooling or heating ceiling panels coupled to the building is present in this investigation as a part of the commissioning study of this system. Two test chambers are adapted in a way to reproduce the interaction of the system to the building (windows, internal thermal loads distribution, building structure and ventilation). A series of experimental tests were performed in which the main objective is to observe the influence of parameters such as the water mass flow rate, supply water temperature, thermal load distribution, window and ventilation system effects on the hydronic ceiling capacity and comfort conditions. Test results show that the influence of asymmetric surfaces temperatures inside the room, especially the window effect is not negligible. Then, it is clear that the cooling hydronic ceiling must be evaluated coupled to the building systems and structure. (author)

  17. Experimental study of hydronic panels system and its environment

    Energy Technology Data Exchange (ETDEWEB)

    Fonseca Diaz, Nestor, E-mail: nestorfonseca5@hotmail.co [University of Liege Belgium, Thermodynamics Laboratory, Campus du Sart Tilman, Bat: B49 - P33, B-4000 Liege (Belgium); Universidad Tecnologica de Pereira, Facultad de Ingenieria Mecanica (Colombia)

    2011-01-15

    An experimental analysis of hydronic cooling or heating ceiling panels coupled to the building is present in this investigation as a part of the commissioning study of this system. Two test chambers are adapted in a way to reproduce the interaction of the system to the building (windows, internal thermal loads distribution, building structure and ventilation). A series of experimental tests were performed in which the main objective is to observe the influence of parameters such as the water mass flow rate, supply water temperature, thermal load distribution, window and ventilation system effects on the hydronic ceiling capacity and comfort conditions. Test results show that the influence of asymmetric surfaces temperatures inside the room, especially the window effect is not negligible. Then, it is clear that the cooling hydronic ceiling must be evaluated coupled to the building systems and structure.

  18. The effects of pen partitions and thermal pig simulators on airflow in a livestock test room

    DEFF Research Database (Denmark)

    Bjerg, B.; Svidt, Kjeld; Zhang, G.

    2000-01-01

    The aim of this work was to investigate the influence of pen partitions and heated simulated pigs on airflow in a slot ventilated test room and to evaluate computer fluid dynamics (CFD) as a tool to predict airflow in livestock rooms. To obtain two-dimensional flow in the occupied zone, four...... guiding plates were mounted beneath the ceiling in the test room. Experiments were carried out in three arrangements: (a) the room with guiding plates; (b) the room with guiding plates and eight heated pig simulators; and (c) the room with guiding plates, eight heated pig simulators and 0.8 m high...... partitions which divided the room into four equal-sized pens. The guiding plates beneath the ceiling were efficient in creating two-dimensional how in the occupied zone, but they increased the differences between measured and simulated air velocity close to the ceiling and close to the floor. Both...

  19. Simulation comparison between natural and hybrid ventilation by fans at night time for severe hot climate (Aswan, Egypt)

    Energy Technology Data Exchange (ETDEWEB)

    Rizk, A. [Department of Architectural Engineering, Faculty of Engineering, Tanta University, Tanta (Egypt); El-Deberky, A. [Department of Architecture, Faculty of Fine Arts, Minya University, Minya (Egypt); Guirguis, N. M. [Housing and Building Research Center, Cairo (Egypt)

    2010-07-01

    During the summer in Aswan, Egypt, indoor temperatures rise to a level exceeding thermal comfort. Due to the lag time of the building's envelope, temperature at night is higher inside than outside during the overheated period. The aim of this paper is to assess the effectiveness of ceiling and wall falls in lowering indoor air temperature at night. Computer simulations were carried out with ANSYS FLOTRAN computational fluid dynamic on a single room; 3 models were studied: natural ventilation, hybrid ventilation with a wall fan and hybrid ventilation with a ceiling fan. Results showed that hybrid ventilation fan is more effective in decreasing the temperature than natural cross ventilation alone and it was found that a wall fan is better than a ceiling fan. This study demonstrated that using hybrid ventilation with a side fan is the best option to reduce the air temperature in a room in Aswan, Egypt.

  20. O desempenho acadêmico e o fenômeno da evasão em cursos de graduação da área da saúde

    OpenAIRE

    Silva, Fernanda Cardoso da

    2016-01-01

    O presente estudo tem como tema central o fenômeno da evasão e a variável desempenho acadêmico nos cursos de graduação da Universidade de Brasília Campus Ceilândia – UnB/ Ceilândia. Objetivo: Analisar o fenômeno da evasão em cinco cursos de graduação da área da saúde da UnB/Ceilândia, no período de 2008/2 a 2014/2 e implementar estratégia de intervenção para melhoria do desempenho acadêmico em quatro disciplinas iniciais do módulo modo de vida nos dois semestres de 2015. Método: O estudo é ex...

  1. Il controllo quantitativo del credito: i "massimali" come strumento di politica monetaria.

    Directory of Open Access Journals (Sweden)

    F. COTULA

    2014-08-01

    Full Text Available Generally speaking, the application of credit ceilings confronts the monetary authorities with a number of political and technical problems, such as the acceptability of distortions of and limits to market forces, the difficulty of administrative controls, and so on. Moreover, a systematic analysis of the economic implications of credit ceilings still has to be made, probably because of the novelty of these policy instruments. The present paper studies the effects and scope of the application of credit ceilings, whether they be considered a substitute for monetary base management or as an additional tool. The analysis is developed on the assumption that the banking system is made of a single large bank with many branches.JEL: E51, E52, G28

  2. Atmospheric Boundary Layer Wind Data During the Period January 1, 1998 Through January 21, 1999 at the Dallas-Fort Worth Airport. Volume 2; Data and Processing

    Science.gov (United States)

    Zak, J. Allen; Rodgers, William G., Jr.

    2000-01-01

    The NASA Langley Research Center's Aircraft Vortex Spacing System (AVOSS) requires accurate winds and turbulence to determine aircraft wake vortex behavior near the ground. Volume 1 described the wind input and quality analysis process. This volume documents the data available during the period January 1998 through January 1999 and the partitioning and concatenation of files for time of day, turbulence, non duplication, cross wind profile quality and ceiling and visibility. It provides the resultant filtered files for the first three partitions as well as identification of ceiling/visibility conditions when they were below 5000 feet and 5 miles respectively. It also includes the wind profile quality flags to permit automatic selection of files for AVOSS application using selected ceiling/visibility and wind profile quality values and flags (or no flags).

  3. Symmetry or asymmetry -- Comfort is the question. (A study of the second floor of the west office wing of the Water Pollution Control Laboratory in Portland, Oregon.)

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez, A.F.; Gaba, P.; Kowitanupong, C.

    1999-07-01

    This article explores the effects of an asymmetric distribution of building components, and their relation to human comfort. The studied building was the Water Pollution Control Laboratory in Portland, Oregon. This project, designed by the Miller/Hull Partnership, provides the perfect conditions to do such a study since it has very different ceiling heights within the same space, and an asymmetric distribution of the fenestration as well. Findings show that: (a) Variable ceiling heights affect the quantity of daylight received, and also affect the quality and distribution of electric light; (b) An asymmetric distribution of the fenestration creates very different conditions in both the luminous and thermal environments; and (c) The design of lighting and HVAC systems must take into consideration variations in ceiling height and the position of the fenestration into the space.

  4. Factors affecting seasonal gas prices: Analysis of trends and R and D implications. Final report, November 1990-February 1992

    International Nuclear Information System (INIS)

    Denhardt, R.C.

    1992-02-01

    Three economic factors were identified which influence the seasonality of gas prices: fuel switching, storage, and utilization of wellhead deliverability. Also, contract structures will have an influence on the seasonality of natural gas prices. Increases in the utilization of wellhead deliverability tends to increase the seasonality of gas prices. Price-induced fuel switching capability is too small to significantly influence the seasonality of gas prices. If there is adequate deliverability, the cost of interruptible storage, including carry cost, will place a ceiling on the seasonability of gas prices. This cost is about $.70 per MMBtu. If deliverability tightens, then the cost of firm storage or producer shut-ins will place a ceiling on gas prices. The ceiling would range from $1.00 to $1.20 per MMBtu. There is concern about whether the current market structure will provide for a smooth return to full cycle pricing. The current premiums for new contracts are inadequate to achieve this objective

  5. Detailed measurements and modelling of thermo active components using a room size test facility

    DEFF Research Database (Denmark)

    Weitzmann, Peter; Svendsen, Svend

    2005-01-01

    measurements in an office sized test facility with thermo active ceiling and floor as well as modelling of similar conditions in a computer program designed for analysis of building integrated heating and cooling systems. A method for characterizing the cooling capacity of thermo active components is described...... based on measurements of the energy balance of the thermo active deck. A cooling capacity of around 60W/m² at a temperature difference of 10K between room and fluid temperature has been found. It is also shown, that installing a lowered acoustic ceiling covering around 50% of the ceiling surface area...... only causes a reduction in the cooling capacity of around 10%. At the same time, the simulation model is able to reproduce the results from the measurements. Especially the heat flows are well predicted with a deviation of only a few percent, while the temperatures are not as well predicted, though...

  6. Can painted glass felt or glass fibre cloth be used as vapour barrier?

    DEFF Research Database (Denmark)

    El-Khattam, Amira; Andersen, Mie Them; Hansen, Kurt Kielsgaard

    2014-01-01

    with a ventilated attic where the ceiling may be air tight but has no vapour barrier; post-insulation of the attic may cause the need for a vapour barrier. Placing a vapour barrier above the ceiling can be tiresome and it is difficult to ensure tightness. A simpler way is to paint a vapour barrier directly...... it is essential to know how much influence a surface treatment has on the water vapour transport. Traditionally, there has been most focus on paints that affect the permeability as little as possible. However, sometimes water vapour resistance is desirable. Especially, this is relevant in existing buildings...... on the ceiling e.g. as an ordinary paint. This paper presents the results of an investigation of the water vapour resistance of surface treatments which are commonly used in-door. The water vapour resistance was measured by the cup method. Aerated concrete was investigated with and without various surface...

  7. Good validity and reliability of the forgotten joint score in evaluating the outcome of total knee arthroplasty

    DEFF Research Database (Denmark)

    Thomsen, Morten G; Latifi, Roshan; Kallemose, Thomas

    2016-01-01

    in a validity study and 150 in a reliability study. Correlation between the Oxford knee score (OKS) and the FJS was examined and test-retest evaluation was performed. A ceiling effect was defined as participants reaching a score within 15% of the maximum achievable score. Results - The validity study revealed...... of the FJS (ICC? 0.79). We found a high level of internal consistency (Cronbach's? = 0.96). The ceiling effect for the FJS was 16%, as compared to 37% for the OKS. Interpretation - The FJS showed good construct validity and test-retest reliability. It had a lower ceiling effect than the OKS. The FJS appears....... We investigated the validity and reliability of the FJS. Patients and methods - A Danish version of the FJS questionnaire was created according to internationally accepted standards. 360 participants who underwent primary TKA were invited to participate in the study. Of these, 315 were included...

  8. The market equilibrium of OPEC's pricing mechanism

    International Nuclear Information System (INIS)

    Hammoudeh, S.; Madan, V.

    1990-01-01

    At least twice a year, oil ministers of the Organization of the Petroleum Exporting Countries (OPEC) meet in Vienna or Geneva to adjust the group's output ceiling to eliminate discrepancies between the market price and the target price. If the market imbalances are persistent, then the target price is also adjusted. Often, OPEC's members differ in their assessment of future market demand for their oil and, thus, present different views on the need to adjust the output celing and the target price. During periods of downward pressures on oil prices, the high absorbers of capital (i.e., oil revenues) prefer a speedy downward adjustment to the celing, while the low absorbers are slow to react. However, in the event of tightening markets, the low absorbers usually respond by exceeding their quotas before agreeing on a ceiling adjustment. Therefore, OPEC nations have different desirable speeds of adjustment. This paper specifies and examines the stability of OPEC's pricing mechanism. It presents a strategy which would enable the organization to achieve a target price-based market equilibrium with increased rapidity through the appropriate manipulation of the speed of output ceiling adjustment. This strategy is applied using data on market and target prices, actual output, and output ceilings for the first quarter of 1991. The main finding is that, given the target price, OPEC's equilibrium market demand is significantly lower than the assigned output ceiling. Production should have been reduced by at least 3 million barrels a day for OPEC to realize the $21 per barrel target price in the first quarter of 1991. Seasonal factors can cause slight variations in this output but would not bring out compatibility between the target price and the output ceiling within a reasonable period of time unless OPEC follows an activist policy of output adjustment. 3 figs., 1 tab

  9. Operational Evaluation of Tug/Barge Systems.

    Science.gov (United States)

    1979-07-01

    PRODUCTS . ------- -40 ........... ,129 -.- .... .......... 1- .31 9.1 16,993 $TON. CLAT. 16 GASS, CONCRETE PRO0. 2211 GLASS A040 GLASS PRODUCTS...marks. Their definition should be understood from context. if there is question about their meaning, detailed definitons are provided in Section D.5 (2...34~ "mibarql’= ci] 30. 5x" ruriioadlI ’runloadlŔO "minbargel"= cel"mflowavcl" 7. ceil (3O rltld. miflowavel" "mflowave2" none "minbarge2"= ceil (3 xrnod

  10. Projection Models 2010

    DEFF Research Database (Denmark)

    Illerup, J. B.; Birr-Pedersen, K.; Mikkelsen, M. H

    Models for projection of SO2-, NOx-, NMVOC- and NH3-emissions to the atmosphere have been developed and the Danish emissions have been projected until 2010 from a basis scenario including all implemented and planned measures. The projections of the four pollutants indicate that it may be difficult...... to achieve the emission ceilings given in the Gothenburg Protocol and the EU directive on national emission ceilings in 2010. In addition to the basis scenario, 8 emission reduction scenarios for different sectors have been analysed in order to estimate the emission saving potential and financial and welfare...

  11. Silence Please

    OpenAIRE

    Linde, Dirkjan van der

    2017-01-01

    Publication of a sound recording The recorded sound is a field recording that took place inside the Sistine Chapel in Rome, a high rectangular space with a vaulted ceiling, a floor area of about 41 by 13 meter and a height of 21 meter. At all time during the recording the space was filled with people passing by the murals that cover the entire ceiling and all the walls. People are in constant conversation with each other. The duration of the soundtrack is a little under 1 hour. The...

  12. Dynamic Measurements of a Novel System

    DEFF Research Database (Denmark)

    Yu, Tao; Zhang, Chen; Heiselberg, Per Kvols

    In the PSO project 345-061, a novel system solution combining natural ventilation with diffuse ceiling inlet and thermally activated building systems (TABS) has been proposed for cooling and ventilation in Danish office buildings. Due to the application of diffuse ceiling inlet, cold outdoor air...... can be supplied into the room without any risk of draught even in the extreme winter. This means that natural ventilation is available even in winter and it is beneficial to reduce the energy consumption for buildings with cooling demand in cold seasons....

  13. Measuring reliable change of emotional and behavioural problems in children

    DEFF Research Database (Denmark)

    Iachina, Maria; Bilenberg, Niels

    2012-01-01

    The purpose of this study was to estimate true treatment effect measured by clinicians using the Health of the Nation Outcome Scale for Children and Adolescent (HoNOSCA) corrected for regression to the mean (RTM), and for ceiling and floor effects. The present study was based on routine clinical...... that if these corrections are implemented in routine outcome measurement of children diagnosed with Hyperkinetic Disorder (HKD), the estimate of change in total HoNOSCA score after adjustment is clearly smaller in absolute value than the absolute difference estimate. If RTM and the ceiling/floor effect is ignored...

  14. Ammonia emissions in Europe

    DEFF Research Database (Denmark)

    Jacobsen, Brian H.

    2012-01-01

    The NEC (National Emission Ceiling) directive has set targets for the 2010 ammonia emissions from a number of European countries. The target will be reached by most EU-countries and the total emission for EU-27 has been reduced by 22% from 1990 to 2007. Denmark is one of the countries with the la......The NEC (National Emission Ceiling) directive has set targets for the 2010 ammonia emissions from a number of European countries. The target will be reached by most EU-countries and the total emission for EU-27 has been reduced by 22% from 1990 to 2007. Denmark is one of the countries...

  15. Maintenance Resources by Building Use for Installations in Germany

    Science.gov (United States)

    1991-11-01

    14:t j8 a. w W~I Z* W~E’W ! IAN * 0 5 *NO1 waLj1 afi WW0. *o3 a- t NWo WNK W9 AKW eW 3W ;1 -m0-4--t - m-- m-um- 2a. ul 33 W - u u u gay 2o 2fv 2M 2 2...PERCENT OF TOTAL 0632105 REPLACE ACOUSTIC TILE CEILING FINISH 178343. .02 0632202 REPAIR ACOUSTIC TILE( DROPPO )CEILING FIN. 472217. .04 0632205 REPLACE

  16. PREDICTORS OF WOMEN ACADEMICS' CAREER PROGRESSION: EVIDENCE FROM AUSTRALIA

    Directory of Open Access Journals (Sweden)

    Hadrian G. Djajadikerta

    2007-01-01

    Full Text Available The issue of glass ceiling, invisible barriers that limit the access of women to higher level occupations and positions, continues to be of concern. Prior studies in this topic have been mostly conducted based on two perspectives: systemic and personal. However, neither of these two perspectives have managed to completely explain the glass ceiling phenomena in organizations. This paper focuses on higher education institutions in Australia. Incorporating both of these perspectives, this paper investigates the factors that influence career progression of women academics in Australian universities.

  17. Thermal environment in a simulated double office room with convective and radiant cooling systems

    DEFF Research Database (Denmark)

    Mustakallio, Panu; Bolashikov, Zhecho Dimitrov; Rezgals, Lauris

    2017-01-01

    The thermal environment in a double office room obtained with chilled beam (CB), chilled beam with radiant panel (CBR), chilled ceiling with ceiling installed mixing ventilation (CCMV) and overhead mixing total volume ventilation (MTVV) under summer (cooling) condition was compared. Design (peak......) and usual (average) heat load from solar radiation, office equipment, lighting and occupants was simulated, respectively at 62 W/m2 and 38 W/m2 under four different workstation layouts. Air temperature, globe (operative) temperature, radiant asymmetry, air velocity and turbulent intensity were measured...

  18. Effect of supply air temperature on air distribution in a room with radiant heating and mechanical ventilation

    DEFF Research Database (Denmark)

    Wu, Xiaozhou; Zhao, Jianing; Fang, Lei

    2017-01-01

    The present study focused on the effect of supply air temperature on air distribution in a room with floor heating (FH) or ceiling heating (CH) and mixing ventilation (MV) or displacement ventilation (DV). The vertical distribution of air temperature and velocity in the occupied zone and the hori...... are relevant to the design and control of the hybrid systems with radiant heating systems and mechanical ventilation systems.......The present study focused on the effect of supply air temperature on air distribution in a room with floor heating (FH) or ceiling heating (CH) and mixing ventilation (MV) or displacement ventilation (DV). The vertical distribution of air temperature and velocity in the occupied zone...

  19. Act of 25 February 1976 amending amounts and limits of the Civil Law

    International Nuclear Information System (INIS)

    1976-01-01

    The Federal Act of 29 April 1964 on nuclear third party liability was modified by Section XXXIII of the Federal Act of 25 February 1976 amending amounts and limits fixed by the Civil Law. This modification came into force on 1 April 1976. For operators of nuclear installations and carriers the ceiling is now 500 million Austrian schillings. For radioisotope holders, the maximum amount depends on the radioactivity and the radiotoxicity of the isotope involved. The present ceiling ranges from 1.2 to 18 million schillings. (NEA) [fr

  20. Cross-cultural adaptation and validation of the French version of the Knee injury and Osteoarthritis Outcome Score (KOOS) in knee osteoarthritis patients

    DEFF Research Database (Denmark)

    Ornetti, P; Parratte, S; Gossec, L

    2008-01-01

    ). The psychometric properties evaluated were feasibility: percentage of responses, floor and ceiling effects; construct validity: internal consistency using Cronbach's alpha, correlations with osteoarthritis knee and hip quality of life domains using Spearman's rank test, and known group comparison between medicine......, mean age=70+/-10 years) and 30 in the surgery group (73% women, mean age=71+/-10 years). The percentage of responses was excellent. Neither a floor nor a ceiling effect was observed, except for the sport and recreation subscale (20.6% of patients with the worst possible score in the medicine group, 40...

  1. Psychometric properties of the French translation of the reduced KOOS and HOOS (KOOS-PS and HOOS-PS)

    DEFF Research Database (Denmark)

    Ornetti, P; Perruccio, A V; Roos, E M

    2009-01-01

    questionnaire (OAKHQOL). The patients were given a second KOOS or HOOS questionnaire to complete and return by mail 2 weeks later. Feasibility was assessed by calculating the percentage of missing items and the floor and ceiling effects. Test-retest reliability was evaluated using the intra-class correlation......-articular hyaluronic acid injection, using standardized response mean (SRM) and effect-size (ES). RESULTS: Eighty-seven patients with knee OA and 50 hip OA patients were included. The KOOS-PS and HOOS-PS scores were obtained for all patients as there were no missing items. Neither a floor nor a ceiling effect...

  2. Teto da Igreja do Carmo de Itú: original ou apenas diferente?

    Directory of Open Access Journals (Sweden)

    Maria Lucília Viveiros Araújo

    1997-06-01

    Full Text Available Mário de Andrade consecrated his criticism about the composition of the painting on the ceiling of the Church of Carmo, Itu. He estimated it as unusual, popular and Brazilian. In his opinion, Padre Jesuíno do Monte Carmelo innovated because he ignored the academic rules. My propose is to reverse this point of view: on the contrary, it may be argued that the painting on the ceiling of the Church of Carmo in Itu represented a general tendency towards simplification and introduction of festoons. This tendency was vehiculated by religious and laic portuguese publications.

  3. Evaluations of fiber optic sensors for interior applications

    Energy Technology Data Exchange (ETDEWEB)

    Sandoval, M.W.; Malone, T.P.

    1996-02-01

    This report addresses the testing and evaluation of commercial fiber optic intrusion detection systems in interior applications. The applications include laying optical fiber cable above suspended ceilings to detect removal of ceiling tiles, embedding optical fibers inside a tamper or item monitoring blanket that could be placed over an asset, and installing optical fibers on a door to detect movement or penetration. Detection capability of the fiber optic sensors as well as nuisance and false alarm information were focused on during the evaluation. Fiber optic sensor processing, system components, and system setup are described.

  4. Industrial Technology Modernization Program. Project 44. Modernize Facility Equipment and Processes. Volume 1. Revision 2. Phase 2

    Science.gov (United States)

    1988-05-01

    ceilings. High decibels created by the Punch Press and Air Press will be directed up into sound deadening material by a hanging strip plastic machine...acoustical tile on the walls and ceiling. High decibels created by the punch press will be directed up into sound deadening material by hanging plastic-strip...CHROMATE CLASS 37 S/C IMPREGNATE I - ’ 7 S/C IMPREGNATE GLASS BLAST t F MASK CHROMATE CLASS 3 INSTALL HELi-COILS " BLUE COAT 7 F MASK PAINT UNMASK LAP

  5. Evaluation Method of Accumulated Cooking Oil Stains in Room

    OpenAIRE

    五十嵐, 由利子; 中村, 和吉; 萬羽, 郁子; Igarashi, Yuriko; Nakamura, Kazuyoshi; Banba, Ikuko

    2005-01-01

    The diffusion of the oil mist while cooking affects the entire room, leaving stains on the ceiling and walls. The validity of measuring the color difference of stains was examined by installing teflon plates in the kitchen and the adjacent space with a view to assessing the oil diffusion. Four houses were designated for the examination. In each house, four teflon plates (20×40mm) were installed on the ceiling and walls of the kitchen and the space adjacent to it. Then, one plate was removed a...

  6. Station Climatic Summaries, Latin America

    Science.gov (United States)

    1990-06-01

    FREQ) OF CEILING AND/OR VISIBILITY (CIG/VIS) < 3000/3 STATUTE MILKS (MI) (SOURCE NO. 1): JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC A.’N 00...DEC 83 2. WOR1.7 CM.IMATIC DATA 3. 7. PERCENTAGE FREQUENCY OF OCCURRENCE (% FREQ) OF CEILING AND/OR VISIBILITY (CIG/VIS) < 3000/3 STATUTE MILKS (MI...804070 ICAO IC: ?-1VMCLOCATION: 10-34’N, 71°44’W ELEVATION (FEET): 235 LST UHT -4 PREPARED BY USAFETAC/ECR JAN 1985 PERIOD: VARIED SOURCE NO. JAN

  7. Proliferación de las células no neuronales del ganglio ciliar en cultivos in vitro

    OpenAIRE

    Padilla-Alvarez, F.; Alcaín Tejada, F.J.; Bustos Ruiz, M.

    1981-01-01

    In our investigations, non-neuron cells from ciliary ganglion of chick embryos (8 days-old), were cultured on tissue culture plastic dis¬hes, using as culture media heart-conditioned medium (HCM), HCM supple¬mented "with glucose (HCMC) and with phytohemagglutinin (PHA) added to HCM (HCMPHA). The low rate of proliferation observed in these ceil.s in ovo, per¬sists when the cells are cultured in vitro. The higest index of ,proliferation is obtained by using HCM as cultu re medium. We observed t...

  8. 16 CFR 305.20 - Paper catalogs and websites.

    Science.gov (United States)

    2010-01-01

    ... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Paper catalogs and websites. 305.20 Section... Disclosures § 305.20 Paper catalogs and websites. (a) Any manufacturer, distributor, retailer, or private labeler who advertises in a catalog, a covered product (except ceiling fan, fluorescent lamp ballasts...

  9. A short assessment of health literacy (SAHL) in the Netherlands

    NARCIS (Netherlands)

    Pander Maat, Henk; Essink-Bot, Marie-Louise; Leenaars, Karlijn EF; Fransen, Mirjam P.

    2014-01-01

    Abstract Background: An earlier attempt to adapt the REALM (Rapid Estimate of Adult Literacy in Medicine) word recognition test to Dutch was not entirely successful due to ceiling effects. In contrast to REALM, the Short Assessment of Health Literacy (SAHL) assesses both word recognition and

  10. A short assessment of health literacy (SAHL) in the Netherlands

    NARCIS (Netherlands)

    Pander Maat, Henk; Essink-Bot, Marie-Louise; Leenaars, Karlijn E. F.; Fransen, Mirjam P.

    2014-01-01

    An earlier attempt to adapt the REALM (Rapid Estimate of Adult Literacy in Medicine) word recognition test to Dutch was not entirely successful due to ceiling effects. In contrast to REALM, the Short Assessment of Health Literacy (SAHL) assesses both word recognition and comprehension in the health

  11. Fort Campbell Childers House: Historic Maintenance and Repair Manual

    Science.gov (United States)

    2006-09-01

    21 Figure 20. Aluminum covering original porch columns, fascia , and ceiling. ......................................23 Figure 21...book, Houses for Homemakers. ..........40 Figure 34. Proposed planting plan for Childers House...44 Figure 35. Elevation illustrating proposed planting plan for Childers House. ....................................45 Figure 36

  12. Cracked but Not Broken: The Continued Gender Gap in Senior Administrative Positions

    Science.gov (United States)

    Gander, Michelle

    2010-01-01

    Much has been written about the glass ceiling and pay differentials in higher and further education (HE, FE) for women academics (McTavish and Miller 2009, Rees 2007) but very little about discrepancies for women "professional managers" within UK higher education. Professional managers as a term needs to be defined as universities call…

  13. Fort Leonard Wood - Building 2101: Interior Character-Defining Features, Inventory and Assessment

    Science.gov (United States)

    2014-04-01

    18 Figure 17. Non-original dropped ceiling in the shower room in the southeast shower room (originally an officers... shower in southeast room which was originally an officers’ toilet during WWII (ERDC-CERL, 2013...Non-original kitchen with cabinets, sink , and shelf in the northwest portion of the building (ERDC-CERL, 2013

  14. The "Reading the Mind in the Voice" Test-Revised: A Study of Complex Emotion Recognition in Adults with and Without Autism Spectrum Conditions

    Science.gov (United States)

    Golan, Ofer; Baron-Cohen, Simon; Hill, Jacqueline J.; Rutherford, M. D.

    2007-01-01

    This study reports a revised version of the "Reading the Mind in the Voice" (RMV) task. The original task (Rutherford et al., (2002), "Journal of Autism and Developmental Disorders, 32," 189-194) suffered from ceiling effects and limited sensitivity. To improve that, the task was shortened and two more foils were added to each of the remaining…

  15. 75 FR 43105 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes

    Science.gov (United States)

    2010-07-23

    ... airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct... manufacturing error, some rivets, required by drawings, were not installed in the joints between two ceiling... weaken the structure, compromising the fuselage structural integrity. The proposed AD would require...

  16. 75 FR 20533 - Interpretation of “Children's Product”

    Science.gov (United States)

    2010-04-20

    ... used as an imaginary knight's lance, a horse, a magical flying vehicle, or another role-playing prop..., children become very interested in role-playing, and they desire increasingly more realistic props during..., shelving units, televisions, digital music players, ceiling fans, humidifiers, air purifiers, window...

  17. 78 FR 57545 - Proposed Amendment of Class D Airspace; Dallas, Addison Airport, TX

    Science.gov (United States)

    2013-09-19

    ... Airport, TX AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking... Class D airspace ceiling at Addison Airport, Dallas, TX, is being withdrawn. Upon review, the FAA... 6, 2013, a NPRM was published in the Federal Register proposing to amend the Addison Airport Class D...

  18. Achieving Zero Net Migration.

    Science.gov (United States)

    Mann, Donald

    1984-01-01

    Unemployment in the United States can only be made worse by continued high levels of legal immigration. Especially serious is the threat from Latin America. We must help developing countries halt their population growth and impose a ceiling of 100,000 a year for total immigration to the United States. (RM)

  19. Counterintuitive Behavior in Mechanical Networks

    Science.gov (United States)

    Peters, Sarah; Vondracek, Mark

    2012-01-01

    Almost all introductory physics classes will, at some point, include springs and elastic forces. When studying such topics, it is interesting to consider the spring system shown in Fig. 1. In this system, two identical springs are arranged with the top of one spring anchored to the ceiling and the bottom of the second spring attached to a hanging…

  20. The 1983 A.A.M.D. Definition and Classification of Mental Retardation: The Apparent Impact of the CEC-MR Position.

    Science.gov (United States)

    Kidd, John W.

    1983-01-01

    The 1983 definition and classification of mental retardation of the American Association on Mental Deficiency reflects positions of the Council for Exceptional Children's Mental Retardation division by raising the ceiling IQ for classification, abandoning the standard deviation as a measurement criterion, and providing flexibility in IQ scores at…