WorldWideScience

Sample records for technique widely employed

  1. Evaluation of fish handling techniques employed by artisanal fishers ...

    African Journals Online (AJOL)

    Evaluation of fish handling techniques employed by artisanal fishers on quality of ... genera at landing time along the Kenyan coast using sensory and microbiological methods. ... African Journal of Food, Agriculture, Nutrition and Development.

  2. Pedagogical Techniques Employed by the Television Show "MythBusters"

    Science.gov (United States)

    Zavrel, Erik

    2016-11-01

    "MythBusters," the long-running though recently discontinued Discovery Channel science entertainment television program, has proven itself to be far more than just a highly rated show. While its focus is on entertainment, the show employs an array of pedagogical techniques to communicate scientific concepts to its audience. These techniques include: achieving active learning, avoiding jargon, employing repetition to ensure comprehension, using captivating demonstrations, cultivating an enthusiastic disposition, and increasing intrinsic motivation to learn. In this content analysis, episodes from the show's 10-year history were examined for these techniques. "MythBusters" represents an untapped source of pedagogical techniques, which science educators may consider availing themselves of in their tireless effort to better reach their students. Physics educators in particular may look to "MythBusters" for inspiration and guidance in how to incorporate these techniques into their own teaching and help their students in the learning process.

  3. Feature Analysis of Recommender Techniques Employed in the Recommendation Engines

    Directory of Open Access Journals (Sweden)

    Gopinath Ganapathy

    2010-01-01

    Full Text Available Problem statement: Recommender Systems (RS have become a widely researched area as it is extensively used in web usage mining and E-commerce platforms. Approach: There were a number of recommender systems available to suggest the web pages for the web users. Results: A recommender system acted as an intelligent intermediary that automatically generates and predicts information and web pages, which suit the users’ behavior and users’ needs. Conclusion: The various recommender models and analyzing the key features of those models and analyzing the features of portal sites that employ recommender systems to help the research community are the key features of this study and survey.

  4. A travelling photothermal technique employing pyroelectric detection to measure thermal diffusivity of films and coatings

    Science.gov (United States)

    Philip, J.; Manjusha, M. V.; Soumya, H.

    2011-10-01

    A travelling thermal wave technique employing optical excitation and pyroelectric detection of thermal waves propagating along a material film/coating on a substrate is described. The method enables direct measurement of thermal diffusivity. The technique involves measurement of the phase lag undergone by an optically excited thermal wave as it propagates along the coating. The set up has been automated for convenient and fast data acquisition and analysis. The technique has been adapted to measurement of thermal diffusivity of a commercial paint sample coated on glass and copper substrates. It is found that thermal diffusivity of the coating is independent of the thermal conductivity of the substrate. Dependence of thermal diffusivity on coating thickness shows exponential increase, with value reaching a constant at a characteristic high thickness. Measurements have been carried out on a few other samples with wide variations in thermal diffusivity, and the results compared with available reports or results obtained following other techniques. Analyses of the results show that the technique allows measurement of thermal diffusivity of coatings and films with uncertainties better than ±2.5%.

  5. Transition to sustainable employment: using backcasting technique for designing policies:

    OpenAIRE

    Alexandra Köves; Gábor Király; György Pataki; Bálint Balázs

    2013-01-01

    The article presents the experience and results of a research project that used the technique of backcasting. Backcasting is a preferred method in transition management – especially with regard to sustainability issues – as it facilitates the deliberation of complex socio-economic issues and enables participants to think freely outside the realms of present cognitive frames and still find adequate, future-oriented policy answers. In the case of this particular Hungarian backcasting experiment...

  6. Long term country-wide rainfall monitoring employing cellular communication networks

    Science.gov (United States)

    Overeem, Aart; Leijnse, Hidde; Uijlenhoet, Remko

    2013-04-01

    Accurate rainfall observations with high spatial and temporal resolutions are needed for hydrological applications, agriculture, meteorology, and climate monitoring. However, the majority of the land surface of the earth lacks accurate rainfall information and the number of rain gauges is even severely declining in Europe, South-America, and Africa. This calls for alternative sources of rainfall information. Various studies have shown that microwave links from operational cellular telecommunication networks may be employed for rainfall monitoring. Such networks cover 20% of the land surface of the earth and have a high density, especially in urban areas. The basic principle of rainfall monitoring using microwave links is as follows. Rainfall attenuates the electromagnetic signals transmitted from one telephone tower to another. By measuring the received power at one end of a microwave link as a function of time, the path-integrated attenuation due to rainfall can be calculated. Previous studies have shown that average rainfall intensities over the length of a link can be derived from the path-integrated attenuation. This is particularly interesting for those countries where few surface rainfall observations are available. Here we present preliminary results of long term country-wide rainfall monitoring employing cellular communication networks. A dataset from a commercial microwave link network over the Netherlands is analyzed, containing data from an unprecedented number of links (~ 2000) covering the land surface of the Netherlands (35500 square kilometres). This dataset spans from January 2011 through October 2012. Daily rainfall maps (1 km spatial resolution) are derived from the microwave link data and compared to maps from a gauge-adjusted radar dataset. The performance of the rainfall retrieval algorithm will be investigated, particularly a possible seasonal dependence.

  7. Employing image processing techniques for cancer detection using microarray images.

    Science.gov (United States)

    Dehghan Khalilabad, Nastaran; Hassanpour, Hamid

    2017-02-01

    Microarray technology is a powerful genomic tool for simultaneously studying and analyzing the behavior of thousands of genes. The analysis of images obtained from this technology plays a critical role in the detection and treatment of diseases. The aim of the current study is to develop an automated system for analyzing data from microarray images in order to detect cancerous cases. The proposed system consists of three main phases, namely image processing, data mining, and the detection of the disease. The image processing phase performs operations such as refining image rotation, gridding (locating genes) and extracting raw data from images the data mining includes normalizing the extracted data and selecting the more effective genes. Finally, via the extracted data, cancerous cell is recognized. To evaluate the performance of the proposed system, microarray database is employed which includes Breast cancer, Myeloid Leukemia and Lymphomas from the Stanford Microarray Database. The results indicate that the proposed system is able to identify the type of cancer from the data set with an accuracy of 95.45%, 94.11%, and 100%, respectively.

  8. Transition to Sustainable Employment: Using Backcasting Technique for Designing Policies

    Directory of Open Access Journals (Sweden)

    Alexandra Köves

    2013-01-01

    Full Text Available The article presents the experience and results of a research project thatused the technique of backcasting. Backcasting is a preferred methodin transition management – especially with regard to sustainability issues– as it facilitates the deliberation of complex socio-economic issuesand enables participants to think freely outside the realms of presentcognitive frames and still find adequate, future-oriented policy answers.In the case of this particular Hungarian backcasting experiment, a sustainableemployment scenario was developed and policy recommendationswere determined for reaching such a desired future. The articleattempts to demonstrate that applying future-oriented methodologicalapproaches can indeed lead to the design of feasible sustainability policieseven when dealing with path-dependent systems burdened withlock-in effects.

  9. Open-Loop Wide-Bandwidth Phase Modulation Techniques

    Directory of Open Access Journals (Sweden)

    Nitin Nidhi

    2011-01-01

    Full Text Available The ever-increasing growth in the bandwidth of wireless communication channels requires the transmitter to be wide-bandwidth and power-efficient. Polar and outphasing transmitter topologies are two promising candidates for such applications, in future. Both these architectures require a wide-bandwidth phase modulator. Open-loop phase modulation presents a viable solution for achieving wide-bandwidth operation. An overview of prior art and recent approaches for phase modulation is presented in this paper. Phase quantization noise cancellation was recently introduced to lower the out-of-band noise in a digital phase modulator. A detailed analysis on the impact of timing and quantization of the cancellation signal is presented. Noise generated by the transmitter in the receive band frequency poses another challenge for wide-bandwidth transmitter design. Addition of a noise transfer function notch, in a digital phase modulator, to reduce the noise in the receive band during phase modulation is described in this paper.

  10. Ultra Wide Band localization and tracking hybrid technique using VRTs

    Directory of Open Access Journals (Sweden)

    Mohd Shamian Zianal

    2012-12-01

    Full Text Available This research presents hybrid radar tracking technique consisting of Time Of Arrival (TOA and Received Signal Strength (RSS techniques. This hybrid design increases efficiency, accuracy and sensitivity of radar system. The radar used in this research is multistatic radar with one transmitter and three receivers. One common drawback in RSS and TOA techniques is high level synchronization in transmitter and receivers. The hybrid design also suffers from transmitter-receiver synchronization. To overcome TX-RX synchronization problem Virtual Reference Tags (VRTs are used. These tags are virtually mapped over the surveillance area giving radar design different reference points from which it can accurately locate intruder and monitor its movements. Also four cases of different

  11. Two years of country-wide rainfall maps employing cellular communication networks

    Science.gov (United States)

    Uijlenhoet, Remko; Overeem, Aart; Leijnse, Hidde; Rios Gaona, Manuel Felipe

    2014-05-01

    Accurate rainfall observations with high spatial and temporal resolutions are needed for hydrological applications, agriculture, meteorology, and climate monitoring. However, the majority of the land surface of the earth lacks accurate rainfall information and the number of rain gauges is even severely declining in Europe, South-America, and Africa. This calls for alternative sources of rainfall information. Various studies have shown that microwave links from operational cellular telecommunication networks may be employed for rainfall monitoring. Such networks cover 20% of the land surface of the earth and have a high density, especially in urban areas. The basic principle of rainfall monitoring using microwave links is as follows. Rainfall attenuates the electromagnetic signals transmitted from one telephone tower to another. By measuring the received power at one end of a microwave link as a function of time, the path-integrated attenuation due to rainfall can be calculated. Previous studies have shown that average rainfall intensities over the length of a link can be derived from the path-integrated attenuation. This is particularly interesting for those countries where few surface rainfall observations are available. Here we present almost two years of country-wide rainfall maps employing cellular communication networks. A data set from a commercial microwave link network over the Netherlands is analyzed, containing data from an unprecedented number of links (~ 2000) covering the land surface of the Netherlands (35500 square kilometers). This data set almost completely covers the years 2011 and 2012. Fifteen-minute and daily rainfall maps (1 km spatial resolution) are derived from the microwave link data and compared to maps from a gauge-adjusted radar data set. The performance of the rainfall retrieval algorithm will be studied, particularly differences in time and space. Time series of air temperature and snow from automatic weather stations, operated by the

  12. The Employability Advantage: Embedding Skills through a University-Wide Language Programme

    Science.gov (United States)

    Cervi-Wilson, Tiziana; Brick, Billy

    2016-01-01

    As the employment of graduates appears among the performance indicators of institutions in higher education, universities are focussing more and more upon the development of employability related skills to enhance students' prospects in the job market. All UK universities are measured on the first jobs that their students acquire after graduation.…

  13. Annual Survey of Public Employment & Payroll Summary Report: 2013. Economy-Wide Statistics Briefs: Public Sector

    Science.gov (United States)

    Willhide, Robert Jesse

    2014-01-01

    This report is part of a series of reports that provides information on the structure, function, finances, taxation, employment, and pension systems of the United States' approximately 90,000 state and local governments. This report presents data on state and local government employment and payroll based on information collected by the 2013 Annual…

  14. Applying a Schema for Studying the Instructive Techniques Employed by Authors of Four Novels for Adolescents.

    Science.gov (United States)

    Severin, Mary Susan

    The purpose of this study was to apply a schema to adolescent novels, to determine what lessons the authors teach and what techniques they employ in their teaching. A historical review of literary criticism established a background for interpreting the educational function of literature. A schema of questions based on the historical background was…

  15. Design and Development of Hybrid Multilevel Inverter employing Dual Reference Modulation Technique for Fuel Cell Applications

    Directory of Open Access Journals (Sweden)

    R. Seyezhai

    2011-10-01

    Full Text Available MultiLevel Inverter (MLI has been recognized as an attractive topology for high voltage DC-AC conversion. This paper focuses on a new dual reference modulation technique for a hybrid multilevel inverter employing Silicon carbide (SiC switches for fuel cell applications. The proposed modulation technique employs two reference waveforms and a single inverted sine wave as the carrier waveform. This technique is compared with the conventional dual carrier waveform in terms of output voltage spectral quality and switching losses. An experimental five-level hybrid inverter test rig has been built using SiC switches to implement the proposed algorithm. Gating signals are generated using PIC microcontroller. The performance of the inverter has been analyzed and compared with the result obtained from theory and simulation. Simulation study of Proportional Integral (PI controller for the inverter employing the proposed modulation strategy has been done in MATLAB/SIMULINK. Keywords: Multilevel inverter, SiC , dual reference modulation, switching losses, PI

  16. Coil migrating out of a small wide-necked aneurysm embolized with stent-assisted technique

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ Stent-assisted coiling is one of the techniques used to treat intracranial aneurysms with wide necks or unfavorable neck-to-fundus ratios, which have been traditionally considered as poor candidates for Guglielmi detachable coil ( GDC ) embolization owing to the significant risk of coil herniation into the parent artery[1-5]. With this technique, fusiform, wide-necked and geometrically difficult aneurysms as well as pseudoaneurysms have been successfully treated with different follow-up results. Herein, we present an aneurysm case with a coil escaping from the confinement of the stent.

  17. Application of Multivariable Statistical Techniques in Plant-wide WWTP Control Strategies Analysis

    DEFF Research Database (Denmark)

    Flores Alsina, Xavier; Comas, J.; Rodríguez-Roda, I.

    2007-01-01

    The main objective of this paper is to present the application of selected multivariable statistical techniques in plant-wide wastewater treatment plant (WWTP) control strategies analysis. In this study, cluster analysis (CA), principal component analysis/factor analysis (PCA/FA) and discriminant...

  18. Trends in demolition planning and in the cutting techniques employed; Trends bei der Rueckbauplanung und den verwendeten Schneidverfahren

    Energy Technology Data Exchange (ETDEWEB)

    Brueggemann, Pascal [NUKEM Technologies GmbH, Alzenau (Germany)

    2009-08-15

    The past couple of years have seen the continuous further development of cutting techniques employed in demolishing nuclear facilities. This trend is continuing. After mostly mechanical cutting techniques had been used initially, there has been a tendency in the past few years to make increasing use of thermal cutting. Reasons for this preference are the reduced space requirement and the advantages this technique offers in remote handling because of the low weight and the small dimensions of the cutting heads, and the high flexibility in materials to be cut. This results in greater planning reliability in calculating quotations and performing the demolition work. The emissions generated by these techniques are manageable reliably at low additional expense for the required extraction and filter systems. Thermal cutting is likely to achieve wide use in dismantling and demolition of nuclear plant components also in the future. Advanced developments in computer hardware and software allow more and more detailed planning of demolition work. While, in the past, CAD had been applied only to generate two-dimensional drawings, current 3D applications allow animated representations of entire demolition scenes with high accuracy in detail. In this way, potential problems associated with handling large components or using manipulators for cutting can be detected and solved much more easily in the preparatory phase. Although current CAD use can be no substitute for mockup tests, it does help to enhance clearly reliability in planning prior to running mockup tests. (orig.)

  19. Nanosecond pulsed laser ablation of Ge investigated by employing photoacoustic deflection technique and SEM analysis

    Energy Technology Data Exchange (ETDEWEB)

    Yaseen, Nazish; Bashir, Shazia; Shabbir, Muhammad Kaif; Jalil, Sohail Abdul; Akram, Mahreen; Hayat, Asma; Mahmood, Khaliq; Haq, Faizan-ul; Ahmad, Riaz; Hussain, Tousif

    2016-06-01

    Nanosecond pulsed laser ablation phenomena of single crystal Ge (100) has been investigated by employing photoacoustic deflection as well as SEM analysis techniques. Nd: YAG laser (1064 nm, 10 ns, 1–10 Hz) at various laser fluences ranging from 0.2 to 11 J cm{sup −2} is employed as pump beam to ablate Ge targets. In order to evaluate in-situe ablation threshold fluence of Ge by photoacoustic deflection technique, Continuous Wave (CW) He–Ne laser (632 nm, power 10 mW) is employed as a probe beam. It travels parallel to the target surface at a distance of 3 mm and after passing through Ge plasma it causes deflection due to density gradient of acoustic waves. The deflected signal is detected by photodiode and is recorded by oscilloscope. The threshold fluence of Ge, the velocity of ablated species and the amplitude of the deflected signal are evaluated. The threshold fluence of Ge comes out to be 0.5 J cm{sup −2} and is comparable with the analytical value. In order to compare the estimated value of threshold with ex-situe measurements, the quantitative analysis of laser irradiated Ge is performed by using SEM analysis. For this purpose Ge is exposed to single and multiple shots of 5, 10, 50 and 100 at various laser fluences ranging from 0.2 to 11 J cm{sup −2}. The threshold fluence for single and multiple shots as well as incubation coefficients are evaluated. It is observed that the value of incubation co-efficient decreases with increasing number of pulses and is therefore responsible for lowering the threshold fluence of Ge. SEM analysis also reveals the growth of various features such as porous structures, non-uniform ripples and blisters on the laser irradiated Ge. It is observed that both the fluence as well as number of laser shots plays a significant role for the growth of these structures.

  20. Nanosecond pulsed laser ablation of Ge investigated by employing photoacoustic deflection technique and SEM analysis

    Science.gov (United States)

    Yaseen, Nazish; Bashir, Shazia; Shabbir, Muhammad Kaif; Jalil, Sohail Abdul; Akram, Mahreen; Hayat, Asma; Mahmood, Khaliq; Haq, Faizan-ul; Ahmad, Riaz; Hussain, Tousif

    2016-06-01

    Nanosecond pulsed laser ablation phenomena of single crystal Ge (100) has been investigated by employing photoacoustic deflection as well as SEM analysis techniques. Nd: YAG laser (1064 nm, 10 ns, 1-10 Hz) at various laser fluences ranging from 0.2 to 11 J cm-2 is employed as pump beam to ablate Ge targets. In order to evaluate in-situe ablation threshold fluence of Ge by photoacoustic deflection technique, Continuous Wave (CW) He-Ne laser (632 nm, power 10 mW) is employed as a probe beam. It travels parallel to the target surface at a distance of 3 mm and after passing through Ge plasma it causes deflection due to density gradient of acoustic waves. The deflected signal is detected by photodiode and is recorded by oscilloscope. The threshold fluence of Ge, the velocity of ablated species and the amplitude of the deflected signal are evaluated. The threshold fluence of Ge comes out to be 0.5 J cm-2 and is comparable with the analytical value. In order to compare the estimated value of threshold with ex-situe measurements, the quantitative analysis of laser irradiated Ge is performed by using SEM analysis. For this purpose Ge is exposed to single and multiple shots of 5, 10, 50 and 100 at various laser fluences ranging from 0.2 to 11 J cm-2. The threshold fluence for single and multiple shots as well as incubation coefficients are evaluated. It is observed that the value of incubation co-efficient decreases with increasing number of pulses and is therefore responsible for lowering the threshold fluence of Ge. SEM analysis also reveals the growth of various features such as porous structures, non-uniform ripples and blisters on the laser irradiated Ge. It is observed that both the fluence as well as number of laser shots plays a significant role for the growth of these structures.

  1. Applied Techniques for High Bandwidth Data Transfers across Wide Area Networks

    Institute of Scientific and Technical Information of China (English)

    JasonLee; BillAllcock; 等

    2001-01-01

    Large distributed systems such as Computational/Data Grids require large amounts of data to be co-located with the computing facilities for processing.From our work develogpin a scalable distributed network cache.we have gained experience with techniques necessary to achieve high data throughput over high bandwidth Wide Area Networks(WAN).In this paper,we discuss several hardware and software dsign techniques,and then describe their application to an implementation of an enhanced FTP protocol called GridFTP,We describe results from the Supercomputing 2000 conference.

  2. Energy saving techniques applied over a nation-wide mobile network

    DEFF Research Database (Denmark)

    Perez, Eva; Frank, Philipp; Micallef, Gilbert;

    2014-01-01

    Traffic carried over wireless networks has grown significantly in recent years and actual forecasts show that this trend is expected to continue. However, the rapid mobile data explosion and the need for higher data rates comes at a cost of increased complexity and energy consumption of the mobile...... on the energy consumption based on a nation-wide network of a leading European operator. By means of an extensive analysis, we show that with the proposed techniques significant energy savings can be realized....... networks. Although base station equipment is improving its energy efficiency by means of new power amplifiers and increased processing power, additional techniques are required to further reduce the energy consumption. In this paper, we evaluate different energy saving techniques and study their impact...

  3. Musculoskeletal wide detector CT: Principles, techniques and applications in clinical practice and research

    Energy Technology Data Exchange (ETDEWEB)

    Gondim Teixeira, Pedro Augusto, E-mail: ped_gt@hotmail.com [Guilloz Imaging Department, Central Hospital, University Hospital Center of Nancy, 29 avenue du Maréchal de Lattre de Tassigny, 54035 Nancy Cedex (France); Gervaise, Alban [Medical Imaging Department, Legouest Military Instruction Hospital, 27 Avenue de Plantières, BP 90001, 57077 Metz Cedex 3 (France); Louis, Matthias; Lecocq, Sophie; Raymond, Ariane; Aptel, Sabine; Blum, Alain [Guilloz Imaging Department, Central Hospital, University Hospital Center of Nancy, 29 avenue du Maréchal de Lattre de Tassigny, 54035 Nancy Cedex (France)

    2015-05-15

    Highlights: • Wide area-detector CT availability is growing steadily. • Advanced techniques such as Dynamic CT, Perfusion CT and dual energy can be used in clinical practice. • Optimal acquisition protocol is needed to increase diagnostic performance and limit dose exposure. • Guidelines for data acquisition and interpretation may increase diagnostic performance and reproducibility. - Abstract: A progressive increase in the detector width in CT scanners has meant that advanced techniques such as dynamic, perfusion and dual-energy CT are now at the radiologist's disposal. Although these techniques may be important for the diagnosis of various musculoskeletal diseases, data acquisition and interpretation can be challenging. This article offers a practical guide for the use of these tools including acquisition protocol, post-processing options and data interpretation based on 7 years of clinical experience in a tertiary university hospital.

  4. Applied techniques for high bandwidth data transfers across wide area networks

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Jason; Gunter, Dan; Tierney, Brian; Allcock, Bill; Bester, Joe; Bresnahan, John; Tuecke, Steve

    2001-04-30

    Large distributed systems such as Computational/Data Grids require large amounts of data to be co-located with the computing facilities for processing. Ensuring that the data is there in time for the computation in today's Internet is a massive problem. From our work developing a scalable distributed network cache, we have gained experience with techniques necessary to achieve high data throughput over high bandwidth Wide Area Networks (WAN). In this paper, we discuss several hardware and software design techniques and issues, and then describe their application to an implementation of an enhanced FTP protocol called GridFTP. We also describe results from two applications using these techniques, which were obtained at the Supercomputing 2000 conference.

  5. Universal filters of arbitrary order and type employing square-root-domain technique

    Science.gov (United States)

    Khanday, F. A.; Psychalinos, C.; Shah, N. A.

    2014-07-01

    Novel Single Input Multiple Output (SIMO) and Multiple Input Single Output (MISO) universal filter topologies of arbitrary order and type are introduced in this paper. The proposed topologies have been realised by employing Square-Root Domain (SRD) technique. An offered benefit of the universal filter topologies is that only grounded capacitors are required for their implementations and the resonant frequency of the filters can be electronically controlled by an appropriate dc current. The proposed universal filters simultaneously offer all the five standard filtering functions i.e. Lowpass (LP), Highpass (HP) and Bandpass (BP), Bandstop (BS) and Allpass (AP) frequency responses. In addition, the SIMO topology is generic in the sense that it can yield four different stable filter configurations. Two design examples are provided in each configuration and the correct operation of the corresponding topologies has been evaluated through the PSPICE software with BSIM 0.35-µm CMOS process model parameters.

  6. Technique for enhancing the power output of an electrostatic generator employing parametric resonance

    Science.gov (United States)

    Post, Richard F.

    2016-02-23

    A circuit-based technique enhances the power output of electrostatic generators employing an array of axially oriented rods or tubes or azimuthal corrugated metal surfaces for their electrodes. During generator operation, the peak voltage across the electrodes occurs at an azimuthal position that is intermediate between the position of minimum gap and maximum gap. If this position is also close to the azimuthal angle where the rate of change of capacity is a maximum, then the highest rf power output possible for a given maximum allowable voltage at the minimum gap can be attained. This rf power output is then coupled to the generator load through a coupling condenser that prevents suppression of the dc charging potential by conduction through the load. Optimized circuit values produce phase shifts in the rf output voltage that allow higher power output to occur at the same voltage limit at the minimum gap position.

  7. Optical double image encryption employing a pseudo image technique in the Fourier domain

    Science.gov (United States)

    Guo, Changliang; Liu, Shi; Sheridan, John T.

    2014-06-01

    A novel optical encryption method is proposed involving double image encryption in which one image is introduced as the pseudo image while the other is the original object image. The Double Random Phase Encoding technique is used to encrypt both the pseudo and object images into complex images. A unique binary image is then employed to first generate the random phase key for the object image encryption and then to embed the encrypted object image into the encrypted pseudo image, which acts as host image. Both the second random phase mask used for encoding the pseudo image and the binary image act as encryption keys. If an attacker attempts to crack the random phase key and decrypt the original object image, the pseudo image will be obtained instead. Simulation results and robustness tests are performed which demonstrate the feasibility of the algorithm.

  8. A VLSI Implementation of Rank-Order Searching Circuit Employing a Time-Domain Technique

    Directory of Open Access Journals (Sweden)

    Trong-Tu Bui

    2013-01-01

    Full Text Available We present a compact and low-power rank-order searching (ROS circuit that can be used for building associative memories and rank-order filters (ROFs by employing time-domain computation and floating-gate MOS techniques. The architecture inherits the accuracy and programmability of digital implementations as well as the compactness and low-power consumption of analog ones. We aim to implement identification function as the first priority objective. Filtering function would be implemented once the location identification function has been carried out. The prototype circuit was designed and fabricated in a 0.18 μm CMOS technology. It consumes only 132.3 μW for an eight-input demonstration case.

  9. Emerging Technologies and Techniques for Wide Area Radiological Survey and Remediation

    Energy Technology Data Exchange (ETDEWEB)

    Sutton, M. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Zhao, P. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-03-24

    Technologies to survey and decontaminate wide-area contamination and process the subsequent radioactive waste have been developed and implemented following the Chernobyl nuclear power plant release and the breach of a radiological source resulting in contamination in Goiania, Brazil. These civilian examples of radioactive material releases provided some of the first examples of urban radiological remediation. Many emerging technologies have recently been developed and demonstrated in Japan following the release of radioactive cesium isotopes (Cs-134 and Cs-137) from the Fukushima Dai-ichi nuclear power plant in 2011. Information on technologies reported by several Japanese government agencies, such as the Japan Atomic Energy Agency (JAEA), the Ministry of the Environment (MOE) and the National Institute for Environmental Science (NIES), together with academic institutions and industry are summarized and compared to recently developed, deployed and available technologies in the United States. The technologies and techniques presented in this report may be deployed in response to a wide area contamination event in the United States. In some cases, additional research and testing is needed to adequately validate the technology effectiveness over wide areas. Survey techniques can be deployed on the ground or from the air, allowing a range of coverage rates and sensitivities. Survey technologies also include those useful in measuring decontamination progress and mapping contamination. Decontamination technologies and techniques range from non-destructive (e.g., high pressure washing) and minimally destructive (plowing), to fully destructive (surface removal or demolition). Waste minimization techniques can greatly impact the long-term environmental consequences and cost following remediation efforts. Recommendations on technical improvements to address technology gaps are presented together with observations on remediation in Japan.

  10. The Adequacy of Environmental Education Techniques and Strategies Employed in Uluguru Mountains Hotspot

    Directory of Open Access Journals (Sweden)

    Joseph Manase

    2016-10-01

    Full Text Available Various studies about the environment consider different factors as sources of environmental deterioration. Such studies have not paid much attention on education as the remedy for environmental sustainability. Other studies have rarely considered environmental education approaches as the reason for lack of success in environmental education arrangements. This research had a focus on the adequacy of environmental education approaches, techniques and strategies employed in Uluguru Mountains in Morogoro. Social constructivist theory by Vigortsky (1958 was employed while case study research design and qualitative approach were deemed important for this research. Data collection was done by using interview and Focus Group Discussion methods. Objectives of the research were to: investigate adequacy of Environmental Education content, methods, awareness as well as the use of indigenous environmental knowledge. The findings show that, environmental education methods implemented in Uluguru Mountains are not satisfactory enough to improve environmental conditions. Again, indigenous knowledge has been less integrated into Environmental Education. Different environmental education methods need to be improved and integrated to create sustainable learning outcomes within Environmental Education. Keywords: Adequacy, Environmental Education, Approaches, Strategies, hotspot

  11. Landscaping climate change: a mapping technique for understanding science and technology debates on the world wide web

    NARCIS (Netherlands)

    Rogers, R.; Marres, N.

    2000-01-01

    New World Wide Web (web) mapping techniques may inform and ultimately facilitate meaningful participation in current science and technology debates. The technique described here "landscapes" a debate by displaying key "webby" relationships between organizations. "Debate-scaping" plots two organizati

  12. Landscaping climate change: a mapping technique for understanding science and technology debates on the world wide web

    NARCIS (Netherlands)

    Rogers, R.; Marres, N.

    2000-01-01

    New World Wide Web (web) mapping techniques may inform and ultimately facilitate meaningful participation in current science and technology debates. The technique described here "landscapes" a debate by displaying key "webby" relationships between organizations. "Debate-scaping" plots two organizati

  13. Landscaping climate change: a mapping technique for understanding science and technology debates on the world wide web

    NARCIS (Netherlands)

    Rogers, R.; Marres, N.

    2000-01-01

    New World Wide Web (web) mapping techniques may inform and ultimately facilitate meaningful participation in current science and technology debates. The technique described here "landscapes" a debate by displaying key "webby" relationships between organizations. "Debate-scaping" plots two

  14. Novel Numerical Technique Employed in Accurate Simulations on White-Light Generation in Bulk Material

    CERN Document Server

    Zia, Haider

    2016-01-01

    An accurate simulation has been devised, employing a new numerical technique to simulate the generalised non-linear Schr\\"odinger equation in all three spatial dimensions and time. The simulations model all pertinent higher order effects such as self-steepening and plasma for the non-linear propagation of ultrafast optical radiation in bulk material. Simulation results are accurate and the novel numerical technique uses reduced computational resources. Simulation results are compared to published experimental data of an example ytterbium aluminum garnet (YAG) system at 3.1um radiation and fits to within a factor of 5. The simulation shows that there is a stability point near the end of the 2 mm crystal where the pulse is both collimated at a reduced diameter (factor of ~2) and there exists a near temporal soliton at the optical center. The temporal intensity profile within this stable region is compressed by a factor of ~4 compared to the input. This explains the reported stable regime found in the experiment...

  15. Education of hand rubbing technique to prospective medical staff, employing UV-based digital imaging technology.

    Science.gov (United States)

    Lehotsky, Ákos; Szilágyi, László; Demeter-Iclănzan, Annamária; Haidegger, Tamás; Wéber, György

    2016-06-01

    The aim of this study was to objectively assess the hand hygiene performance of medical students. Hand rubbing technique was evaluated by employing innovative UV-light-based imaging technology, identifying patterns and trends in missed areas after applying WHO's six-step protocol. This specially designed hand hygiene education and assessment program targeted 1,344 medical students at two distant sites in Central Europe. Students were introduced to a short video, presenting the basics of hand hygiene, and then received further demonstration from professional trainers, focusing on the correct execution of WHO's six-step technique. To verify the acquired skill, participants rubbed their hands with UV-marked alcohol-based solution. Digital images of the hands were recorded under UV light, followed by computer evaluation and assessment. Immediate objective visual feedback was given to the participants showing missed areas on their hands. The statistical analysis of missed spots was based on retrospective expert-driven manual evaluation. Significant difference in rubbing quality was found between female and male participants [35.3% (CI 95%: 33-38%) versus 29.0% (CI 95%: 27-31%), p hands [43.4% (CI 95%: 39-48%) versus 34.9% (CI 95%: 32-38%), p = 0.002], and various zones of the hands' dorsal side. Based on the participants' feedback and the evaluation of the infection control specialists, it can be stated that the identification of typically missed patterns and the instant visual feedback have a vital role in improving the hand hygiene technique of prospective medical staff.

  16. A Novel Implementation of RISI Controller Employing Adaptive Clock Gating Technique

    Directory of Open Access Journals (Sweden)

    M.Kamaraju

    2011-11-01

    Full Text Available With the scaling of technology and the need for higher performance and more functionality power dissipation is becoming a major issue for controller design. Interrupt based programming is widely used for interfacing a processor with peripherals. The proposed architecture implements a mechanism which combines interrupt controller and RIS (Reduced Instruction Set CPU (Central processing unit on a single die. RISI Controller takes only one cycle for both interrupt request generation and acknowledgement. The architecture have a dynamic control unit which consists of a program flow controller, interrupt controller and I/O controller. Adaptive clock gating technique is used to reduce power consumption in the dynamic control unit. The controller consumes a power of 174µw@1MHz and is implemented in verilog HDL using Xilinx platform

  17. Visible Perforating Lateral Osteotomy: Internal Perforating Technique with Wide Periosteal Dissection

    Directory of Open Access Journals (Sweden)

    Bong Il Rho

    2016-01-01

    Full Text Available There are two general categories of lateral osteotomy techniques—the external perforating method and the internal continuous method. Regardless of which technique is used, procedural effectiveness is hampered by limited visualization in the surgical field. Considering this point, we devised a new technique that involves using a wide subperiosteal dissection and internal perforation under direct visualization. Using an intranasal approach, whereby the visibility of the intended fracture line was maintained, enabled a greater degree of control, and in turn, results that were more precise, and thus predictable and reproducible. Traditionally, it has been taken as dogma that the periosteum must be preserved, considering the potential for dead space and bony instability; however, under sufficient visualization of the surgical field with an internal perforating method, complete osteotomy with fully preserved intranasal mucosa could be conducted exactly as intended. This intact mucosal lining compensates for the elevated periosteum. Compressive dressing and drainage through a Silastic angio-needle catheter enabled the elimination of dead space. Therefore, precise, reproducible, and predictable osteotomy minimizing the potential for associated complications such as ecchymosis, that is, bruising owing to hemorrhage, could be performed. In this article, we introduce a novel technique for lateral osteotomy with improved visualization.

  18. Employing socially driven techniques for framing, contextualization, and collaboration in complex analytical threads

    Science.gov (United States)

    Wollocko, Arthur; Danczyk, Jennifer; Farry, Michael; Jenkins, Michael; Voshell, Martin

    2015-05-01

    The proliferation of sensor technologies continues to impact Intelligence Analysis (IA) work domains. Historical procurement focus on sensor platform development and acquisition has resulted in increasingly advanced collection systems; however, such systems often demonstrate classic data overload conditions by placing increased burdens on already overtaxed human operators and analysts. Support technologies and improved interfaces have begun to emerge to ease that burden, but these often focus on single modalities or sensor platforms rather than underlying operator and analyst support needs, resulting in systems that do not adequately leverage their natural human attentional competencies, unique skills, and training. One particular reason why emerging support tools often fail is due to the gap between military applications and their functions, and the functions and capabilities afforded by cutting edge technology employed daily by modern knowledge workers who are increasingly "digitally native." With the entry of Generation Y into these workplaces, "net generation" analysts, who are familiar with socially driven platforms that excel at giving users insight into large data sets while keeping cognitive burdens at a minimum, are creating opportunities for enhanced workflows. By using these ubiquitous platforms, net generation analysts have trained skills in discovering new information socially, tracking trends among affinity groups, and disseminating information. However, these functions are currently under-supported by existing tools. In this paper, we describe how socially driven techniques can be contextualized to frame complex analytical threads throughout the IA process. This paper focuses specifically on collaborative support technology development efforts for a team of operators and analysts. Our work focuses on under-supported functions in current working environments, and identifies opportunities to improve a team's ability to discover new information and

  19. (A new time of flight) Acoustic flow meter using wide band signals and adaptive beamforming techniques

    Science.gov (United States)

    Murgan, I.; Ioana, C.; Candel, I.; Anghel, A.; Ballester, J. L.; Reeb, B.; Combes, G.

    2016-11-01

    In this paper we present the result of our research concerning the improvement of acoustic time of flight flow metering for water pipes. Current flow meters are based on the estimation of direct time of flight by matched filtering of the received and emitted signals by acoustic transducers. Currently, narrow band signals are used, as well as a single emitter/receptor transducer configuration. Although simple, this configuration presents a series of limitations such as energy losses due to pipe wall/water interface, pressure/flow transients, sensitivity to flow induced vibrations, acoustic beam deformations and shift due to changes in flow velocity and embedded turbulence in the flow. The errors associated with these limitations reduce the overall robustness of existing flow meters, as well as the measured flow rate range and lower accuracy. In order to overcome these limitations, two major innovations were implemented at the signal processing level. The first one concerns the use of wide band signals that optimise the power transfer throughout the acoustic path and also increase the number of velocity/flow readings per second. Using wide band signals having a high duration-bandwidth product increases the precision in terms of time of flight measurements and, in the same time, improves the system robustness. The second contribution consists in the use of a multiple emitter - multiple receivers configuration (for one path) in order to compensate the emitted acoustic beam shift, compensate the time of flight estimation errors and thus increase the flow meter's robustness in case of undesired effects such as the “flow blow” and transient/rapid flow rate/velocity changes. Using a new signal processing algorithm that take advantage of the controlled wide band content coming from multiple receivers, the new flow meters achieves a higher accuracy in terms of flow velocity over a wider velocity range than existing systems. Tests carried out on real scale experimental

  20. The anti-CMS technique for genome-wide mapping of 5-hydroxymethylcytosine.

    Science.gov (United States)

    Huang, Yun; Pastor, William A; Zepeda-Martínez, Jorge A; Rao, Anjana

    2012-10-01

    5-Hydroxymethylcytosine (5hmC) is a recently discovered base in the mammalian genome, produced upon oxidation of 5-methylcytosine (5mC) in a process catalyzed by TET proteins. The biological functions of 5hmC and further oxidation products of 5mC are under intense investigation, as they are likely intermediates in DNA demethylation pathways. Here we describe a novel protocol to profile 5hmC at a genome-wide scale. This approach is based on sodium bisulfite-mediated conversion of 5hmC to cytosine-5-methylenesulfonate (CMS); CMS-containing DNA fragments are then immunoprecipitated using a CMS-specific antiserum. The anti-CMS technique is highly specific with a low background, and is much less dependent on 5hmC density than anti-5hmC immunoprecipitation (IP). Moreover, it does not enrich for CA and CT repeats, as noted for 5hmC DNA IP using antibodies to 5hmC. The anti-CMS protocol takes 3 d to complete.

  1. Transient excitation and data processing techniques employing the fast fourier transform for aeroelastic testing

    Science.gov (United States)

    Jennings, W. P.; Olsen, N. L.; Walter, M. J.

    1976-01-01

    The development of testing techniques useful in airplane ground resonance testing, wind tunnel aeroelastic model testing, and airplane flight flutter testing is presented. Included is the consideration of impulsive excitation, steady-state sinusoidal excitation, and random and pseudorandom excitation. Reasons for the selection of fast sine sweeps for transient excitation are given. The use of the fast fourier transform dynamic analyzer (HP-5451B) is presented, together with a curve fitting data process in the Laplace domain to experimentally evaluate values of generalized mass, model frequencies, dampings, and mode shapes. The effects of poor signal to noise ratios due to turbulence creating data variance are discussed. Data manipulation techniques used to overcome variance problems are also included. The experience is described that was gained by using these techniques since the early stages of the SST program. Data measured during 747 flight flutter tests, and SST, YC-14, and 727 empennage flutter model tests are included.

  2. Comparison of Modulation Techniques for Underwater Optical Wireless Communication Employing APD Receivers

    Directory of Open Access Journals (Sweden)

    Mazin Ali A. Ali

    2015-06-01

    Full Text Available In this study, we theoretically analyze the performance of an underwater optical wireless communications system using different modulation techniques and an avalanche photodiode APD receiver over underwater environment channels. Based on the LOS geometrical model and combined with signal to noise ratio model for Si and Ge APD and BER; then the impact of the distance of transmission and power of the transmitter and Jerlov water type are analyzed. The characteristics of bit error rate BER for different optical modulation techniques are studied. Simulation results indicate that the performance of H-QAM is more suited for an underwater optical wireless communication. On the other hand, the suitability of avalanche photodiodes under these modulation techniques is discussed, because the photodiode Si APD has more advantages compared with Ge APD when used in an underwater optical communication.

  3. An electromagnetic signals monitoring and analysis wireless platform employing personal digital assistants and pattern analysis techniques

    Science.gov (United States)

    Ninos, K.; Georgiadis, P.; Cavouras, D.; Nomicos, C.

    2010-05-01

    This study presents the design and development of a mobile wireless platform to be used for monitoring and analysis of seismic events and related electromagnetic (EM) signals, employing Personal Digital Assistants (PDAs). A prototype custom-developed application was deployed on a 3G enabled PDA that could connect to the FTP server of the Institute of Geodynamics of the National Observatory of Athens and receive and display EM signals at 4 receiver frequencies (3 KHz (E-W, N-S), 10 KHz (E-W, N-S), 41 MHz and 46 MHz). Signals may originate from any one of the 16 field-stations located around the Greek territory. Employing continuous recordings of EM signals gathered from January 2003 till December 2007, a Support Vector Machines (SVM)-based classification system was designed to distinguish EM precursor signals within noisy background. EM-signals corresponding to recordings preceding major seismic events (Ms≥5R) were segmented, by an experienced scientist, and five features (mean, variance, skewness, kurtosis, and a wavelet based feature), derived from the EM-signals were calculated. These features were used to train the SVM-based classification scheme. The performance of the system was evaluated by the exhaustive search and leave-one-out methods giving 87.2% overall classification accuracy, in correctly identifying EM precursor signals within noisy background employing all calculated features. Due to the insufficient processing power of the PDAs, this task was performed on a typical desktop computer. This optimal trained context of the SVM classifier was then integrated in the PDA based application rendering the platform capable to discriminate between EM precursor signals and noise. System's efficiency was evaluated by an expert who reviewed 1/ multiple EM-signals, up to 18 days prior to corresponding past seismic events, and 2/ the possible EM-activity of a specific region employing the trained SVM classifier. Additionally, the proposed architecture can form a

  4. Employing Cognitive Chunking Techniques to Enhance Sight-Reading Performance of Undergraduate Group-Piano Students

    Science.gov (United States)

    Pike, Pamela D.; Carter, Rebecca

    2010-01-01

    The purpose of this study was to compare the effect of cognitive chunking techniques among first-semester group-piano music majors. The ability to group discrete pieces of information into larger, more meaningful chunks is essential for efficient cognitive processing. Since reading keyboard music and playing the piano is a cognitively complex…

  5. Employing Cognitive Chunking Techniques to Enhance Sight-Reading Performance of Undergraduate Group-Piano Students

    Science.gov (United States)

    Pike, Pamela D.; Carter, Rebecca

    2010-01-01

    The purpose of this study was to compare the effect of cognitive chunking techniques among first-semester group-piano music majors. The ability to group discrete pieces of information into larger, more meaningful chunks is essential for efficient cognitive processing. Since reading keyboard music and playing the piano is a cognitively complex…

  6. Literary Techniques Employed to Develop Celie's Character in The Color Purple

    Institute of Scientific and Technical Information of China (English)

    褚妍

    2014-01-01

    In 1982, Alice Walker's The Color Purple, was published and became one of the best sellers. As the novel progressed, Celie's acquiescent behavior transformed into one of resilience and dignity. By incorporating the literary techniques of tone, symbolism, and juxtaposition into her novel, Alice Walker was able to develop Celie's character, emphasizing her progression from subservience to independence.

  7. Detection of Pseudomonas aeruginosa Metabolite Pyocyanin in Water and Saliva by Employing the SERS Technique

    Directory of Open Access Journals (Sweden)

    Olga Žukovskaja

    2017-07-01

    Full Text Available Pyocyanin (PYO is a metabolite specific for Pseudomonas aeruginosa. In the case of immunocompromised patients, it is currently considered a biomarker for life-threating Pseudomonas infections. In the frame of this study it is shown, that PYO can be detected in aqueous solution by employing surface-enhanced Raman spectroscopy (SERS combined with a microfluidic platform. The achieved limit of detection is 0.5 μM. This is ~2 orders of magnitude below the concentration of PYO found in clinical samples. Furthermore, as proof of principle, the SERS detection of PYO in the saliva of three volunteers was also investigated. This body fluid can be collected in a non-invasive manner and is highly chemically complex, making the detection of the target molecule challenging. Nevertheless, PYO was successfully detected in two saliva samples down to 10 μM and in one sample at a concentration of 25 μM. This indicates that the molecules present in saliva do not inhibit the efficient adsorption of PYO on the surface of the employed SERS active substrates.

  8. SSPA's Using Reduced Conduction Angle Techniques on Wide-Bandgap Devices for Ultra High Efficiency Project

    Data.gov (United States)

    National Aeronautics and Space Administration — A novel approach is proposed for very efficient, very reliable, low weight, wide-bandgap medium power SSPAs for Space applications operating at 400 MHz and 8GHz.

  9. Signal Processing for Fibre-optic Distributed Sensing Techniques Employing Brillouin Scattering

    Institute of Scientific and Technical Information of China (English)

    XIAO Shang-hui; LI Li

    2009-01-01

    As fibre optic distributed scattering sensing systems are providing innovative solutions for the monitoring of large structures, Brillouin-based distributed scattering sensing techniques represent a new physical approach for structures health monitoring, which seems extremely promising and is receiving most attentions. This paper comprehensively presents some methods of signal interrogation for fibre optic Brillouin-based distributed scattering sensing technology, especially establishes an accurate Pseudo-Voigt model of Brillouin gain spectrum and gives some results on spectrum analysis and data processing.

  10. Biomechanical analysis of the herringbone technique as employed by elite cross-country skiers.

    Science.gov (United States)

    Andersson, E; Stöggl, T; Pellegrini, B; Sandbakk, O; Ettema, G; Holmberg, H-C

    2014-06-01

    This investigation was designed to analyse the kinematics and kinetics of cross-country skiing at different velocities with the herringbone technique on a steep incline. Eleven elite male cross-country skiers performed this technique at maximal, high, and moderate velocities on a snow-covered 15° incline. They positioned their skis laterally (25 to 30°) with a slight inside tilt and planted their poles laterally (8 to 12°) with most leg thrust force exerted on the inside forefoot. Although 77% of the total propulsive force was generated by the legs, the ratio between propulsive and total force was approximately fourfold higher for the poles. The cycle rate increased with velocity (1.20 to 1.60 Hz), whereas the cycle length increased from moderate up to high velocity, but then remained the same at maximal velocity (2.0 to 2.3 m). In conclusion, with the herringbone technique, the skis were angled laterally without gliding, with the forces distributed mainly on the inside forefoot to enable grip for propulsion. The skiers utilized high cycle rates with major propulsion by the legs, highlighting the importance of high peak and rapid generation of leg forces.

  11. Techniques Employed to Conduct Postshot Drilling at the former Nevada Test Site

    Energy Technology Data Exchange (ETDEWEB)

    Dekin, W D

    2011-04-14

    Postshot drilling provided essential data on the results of the underground nuclear tests conducted at the Nevada Test Site (NTS), now identified as the Nevada National Security Site (NNSS). It was the means by which samples from the zone of interest were obtained for radiochemical analysis. This handbook describes how Lawrence Livermore National Laboratory (LLNL) conducted postshot drilling operations at the NTS, and it provides a general understanding of the process. Postshot drilling is a specialized application of rotary drilling. Accordingly, this handbook gives a brief description of rotary drilling in Section 2 to acquaint the reader with the general subject before proceeding to the specialized techniques used in postshot drilling. In Section 3, the handbook describes the typical postshot drilling situation at the former NTS and the drilling methods used. Section 4 describes the typical sequence of operations in postshot drilling at the former NTS. Detailed information on special equipment and techniques is given in a series of appendices (A through F) at the end of the handbook.

  12. A Generic Current Mode Design for Multifunction Grounded Capacitor Filters Employing Log-Domain Technique

    Directory of Open Access Journals (Sweden)

    N. A. Shah

    2011-01-01

    Full Text Available A generic design (GD for realizing an nth order log-domain multifunction filter (MFF, which can yield four possible stable filter configurations, each offering simultaneously lowpass (LP, highpass (HP, and bandpass (BP frequency responses, is presented. The features of these filters are very simple, consisting of merely a few exponential transconductor cells and capacitors; all grounded elements, capable of absorbing the shunt parasitic capacitances, responses are electronically tuneable, and suitable for monolithic integration. Furthermore, being designed using log-domain technique, it offers all its advantages. As an example, 5th-order MFFs are designed in each case and their performances are evaluated through simulation. Lastly, a comparative study of the MFFs is also carried, which helps in selecting better high-order MFF for a given application.

  13. The teaching of all-ceramic restorations in North American dental schools: materials and techniques employed.

    Science.gov (United States)

    Frazier, K B; Mjör, I A

    1997-01-01

    North American dental schools were surveyed to determine the types of clinical experiences and the extent of material use that predoctoral students encounter with restorative procedures that employ all-ceramic materials. The results were based on an overall response rate of 80% from the 64 surveyed schools. The majority (96%) of the 51 schools responding to the survey did offer an opportunity to become experienced with all-ceramic restorations. The selection of bases and liners for all-ceramic restorations included dentin adhesive agents, glass ionomer materials, and calcium hydroxide products, by a ratio of 5:4:1, respectively. The most commonly used impression material types were addition silicone and polyether. One or both of these materials were used by every school. Dicor glass ceramic and alumina core ceramic were the most commonly used materials by the responding schools for veneers, onlays, and crowns. Dicor glass ceramic and CAD/CAM ceramic were most commonly used for inlays. Crowns were made of more different all-ceramic material types than the other restoration classes. Fabrication of all-ceramic restorations was primarily by commercial laboratories and school technicians. Students have hands-on experience in the fabrication of all-ceramic restorations in 6% of the responding schools. Luting agents for all-ceramic restorations include dual-cured resin, in 96% of the responding schools, light-cured resin, 43%, and glass ionomer cement, 33%. Zinc phosphate, chemical-cured composite, and polycarboxylate were used by less than one fourth of the respondents. Only resin-based composite materials were used to lute ceramic veneers. Rubber dam was applied primarily during luting procedures involving all-ceramic inlays and onlays. Crowns and veneers were isolated by this method in less than 30% of the responding schools. Finishing procedures with all-ceramic restorations were accomplished with three or more instruments by 89% of the schools.

  14. Endovascular treatment of wide-necked intracranial aneurysms using of "remodeling technique" with the HyperForm balloon

    Institute of Scientific and Technical Information of China (English)

    MU Shi-qing; YANG Xin-jian; LI You-xiang; ZHANG You-ping; L(U) Ming; WU Zhong-xue

    2008-01-01

    Background Aneurysms with wide-necked or a large neck/fundus ratio, especially located on an arterial bifurcation or a small artery, are challenges for interventional neuroradiologist because of the risk of coil migration or coil protrusion into the parent vessels. Our study was designed to improve the efficacy and safety of the "remodeling technique" with the HyperForm balloon for these difficult aneurysms and was confirmed by a follow-up result. Methods From June 2004 to September 2006, forty-two patients(20 men, 22 women)with wide-necked or large neck/fundus ratio aneurysms were treated by using the"remodeling technique"with the HyperForm balloon. Results Forty wide-necked aneurysms were successfully treated with the HyperForm balloon remodeling technique with only two failed cases. Final results consisted of total occlusion in 34 cases(80.9%), subtotal in 4 (9.5%) and incomplete in 2(4.8%). One aneurysmal rupture occurred, but no clinical consequence was shown. No thromboembolic events were observed during treatment. Final angiographic follow-up time ranged from 3 to 18 months. Conclusions The "remodeling technique" with the HyperForm balloon is a very useful tool in the treatment of wide-necked or unfavorable neck/fundus ratio intracranial aneurysms-located on an arterial bifurcation or a small artery and, especially, located on the bifurcation of a large artery and a small one. In our experience, this technique provided a safe and efficient treatment for difficult aneurysms when the standard remodeling technique might have failed.

  15. Development of cobalt ferrite powder preparation employing the sol-gel technique and its structural characterisation

    Directory of Open Access Journals (Sweden)

    Olabi A.G.

    2010-06-01

    Full Text Available This work focuses on the development of a method to make nano cobalt ferrite powder using a solgel process. A particular emphasis is devoted to the understanding of the role of the chemical parameters involved in the solgel technique, and of the heat treatment on the structures and morphologies of the materials obtained. Several samples of cobalt ferrite powder were obtained by varying the initial parameters of the process in addition to the heat treatment temperature. Xray diffraction and scanning electron microscopy were used to identify the structure and morphology of samples demonstrating the influence of the initial parameters. DTA/TGA was carried out on one sample to identify important reaction temperatures during the heat treatment. The average particle size, as estimated for one sample by the full width at half maximum (FWHM of the strongest Xray diffraction (XRD peak, was found to be about 45 nm. It has been found that the chelating agent and the crosslinker have a critical influence on the resultant structure, the particle size and the particle size distribution.

  16. Development of chromatofocusing techniques employing mixed-mode column packings for protein separations.

    Science.gov (United States)

    Guo, Hui; Li, Xiang; Frey, Douglas D

    2014-01-03

    Recent studies reported in the literature using mixed-mode chromatography (MMC) column packings have shown that multiple modes of interactions between the column packing and proteins can be usefully exploited to yield excellent resolution as well as salt-tolerant adsorption of the target protein. In this study, a mixed-mode separation method using commercially available column packings was explored which combines the techniques of hydrophobic-interaction chromatography and chromatofocusing. Two different column packings, one based on mercapto-ethyl-pyridine (MEP) and the other based on hexylamine (HEA) were investigated with regard to their ability to separate proteins when using internally generated, retained pH gradients. The effects of added salt and urea on the behavior of the retained pH gradient and the protein separation achieved when using MMC column packings for chromatofocusing were also investigated. Numerical simulations using methods developed in previous work were shown to agree with experimental results when using reasonable physical parameters. These numerical simulations were also shown to be a useful qualitative method to select the compositions of the starting and elution buffers in order to achieve desired shapes for the pH and ionic strength gradients. The use of the method to fractionate blood serum was explored as a prototype example application. Copyright © 2013 Elsevier B.V. All rights reserved.

  17. A bootstrapped switch employing a new clock feed-through compensation technique

    Institute of Scientific and Technical Information of China (English)

    Wu Xiaofeng; Liu Hongxia; Su Li; Hao Yue; Li Di; Hu Shigang

    2009-01-01

    Nonlinearity caused by the clock feed-through of a bootstrapped switch and its compensation techniques are analyzed. All kinds of clock feed-through compensation configurations and their drawbacks are also investigated.It is pointed out that the delay path match of the clock boosting circuit is the critical factor that affects the effective-ness of clock feed-through compensation. Based on that, a new clock feed-through compensation configuration and corresponding bootstrapped switch are presented and designed optimally with the UMC mixed-mode/RF 0.18μm 1P6M P-sub twin-well CMOS process by orientating and elaborately designing the switch MOSFETs that influence the delay path match of the clock boosting circuit. HSPICE simulation results show that the proposed clock feed-through compensation configuration can not only enhance the sampling accuracy under variations of process, power supply voltage, temperature and capacitors but also decrease the even harmonic, high-order odd harmonic and THD on the whole effectively.

  18. Optical Coherence Tomography Angiography: Employing a Novel Technique for Investigation in Vogt-Koyanagi-Harada Disease

    Directory of Open Access Journals (Sweden)

    Panagiotis Giannakouras

    2017-07-01

    Full Text Available Purpose: To report a case of Vogt-Koyanagi-Harada (VKH disease and describe the imaging findings by means of optical coherence tomography angiography (OCTA. Methods: Medical and ophthalmological history, ophthalmological examination, laboratory evaluation, B-scan ultrasonography, fluorescein and indocyanine angiography, and optical coherence tomography (OCT were performed at baseline, as well as OCTA. Results: A 50-year-old healthy female presented with decreased vision in both eyes. A Topcon DRI OCT Triton Plus swept source OCT system was used to visualize and evaluate the retinal and choroidal vascular plexus. Patchy and confluent dark areas in the superficial and deep retinal capillary plexus and choriocapillaris corresponded to areas of hypoperfusion, analyzed as areas of ischemia. Conclusions and Importance: VKH disease is characterized by ocular, neurological, and integumentary findings in its complete form. We present a case of incomplete disease in a 50-year-old female evaluated by means of OCTA which is a novel technique that provides depth-resolved images of the retina and choroidal microvasculature without dye injection that allows better visualization and detailed evaluation of the retinal and choroidal vascular plexus.

  19. Genome-wide linkage analysis of QTL for growth and body composition employing the PorcineSNP60 BeadChip

    Directory of Open Access Journals (Sweden)

    Fernández Ana I

    2012-05-01

    Full Text Available Abstract Background The traditional strategy to map QTL is to use linkage analysis employing a limited number of markers. These analyses report wide QTL confidence intervals, making very difficult to identify the gene and polymorphisms underlying the QTL effects. The arrival of genome-wide panels of SNPs makes available thousands of markers increasing the information content and therefore the likelihood of detecting and fine mapping QTL regions. The aims of the current study are to confirm previous QTL regions for growth and body composition traits in different generations of an Iberian x Landrace intercross (IBMAP and especially identify new ones with narrow confidence intervals by employing the PorcineSNP60 BeadChip in linkage analyses. Results Three generations (F3, Backcross 1 and Backcross 2 of the IBMAP and their related animals were genotyped with PorcineSNP60 BeadChip. A total of 8,417 SNPs equidistantly distributed across autosomes were selected after filtering by quality, position and frequency to perform the QTL scan. The joint and separate analyses of the different IBMAP generations allowed confirming QTL regions previously identified in chromosomes 4 and 6 as well as new ones mainly for backfat thickness in chromosomes 4, 5, 11, 14 and 17 and shoulder weight in chromosomes 1, 2, 9 and 13; and many other to the chromosome-wide signification level. In addition, most of the detected QTLs displayed narrow confidence intervals, making easier the selection of positional candidate genes. Conclusions The use of higher density of markers has allowed to confirm results obtained in previous QTL scans carried out with microsatellites. Moreover several new QTL regions have been now identified in regions probably not covered by markers in previous scans, most of these QTLs displayed narrow confidence intervals. Finally, prominent putative biological and positional candidate genes underlying those QTL effects are listed based on recent porcine

  20. Non-Linearity in Wide Dynamic Range CMOS Image Sensors Utilizing a Partial Charge Transfer Technique

    Directory of Open Access Journals (Sweden)

    Izhal Abdul Halin

    2009-11-01

    Full Text Available The partial charge transfer technique can expand the dynamic range of a CMOS image sensor by synthesizing two types of signal, namely the long and short accumulation time signals. However the short accumulation time signal obtained from partial transfer operation suffers of non-linearity with respect to the incident light. In this paper, an analysis of the non-linearity in partial charge transfer technique has been carried, and the relationship between dynamic range and the non-linearity is studied. The results show that the non-linearity is caused by two factors, namely the current diffusion, which has an exponential relation with the potential barrier, and the initial condition of photodiodes in which it shows that the error in the high illumination region increases as the ratio of the long to the short accumulation time raises. Moreover, the increment of the saturation level of photodiodes also increases the error in the high illumination region.

  1. Non-Linearity in Wide Dynamic Range CMOS Image Sensors Utilizing a Partial Charge Transfer Technique

    Science.gov (United States)

    Shafie, Suhaidi; Kawahito, Shoji; Halin, Izhal Abdul; Hasan, Wan Zuha Wan

    2009-01-01

    The partial charge transfer technique can expand the dynamic range of a CMOS image sensor by synthesizing two types of signal, namely the long and short accumulation time signals. However the short accumulation time signal obtained from partial transfer operation suffers of non-linearity with respect to the incident light. In this paper, an analysis of the non-linearity in partial charge transfer technique has been carried, and the relationship between dynamic range and the non-linearity is studied. The results show that the non-linearity is caused by two factors, namely the current diffusion, which has an exponential relation with the potential barrier, and the initial condition of photodiodes in which it shows that the error in the high illumination region increases as the ratio of the long to the short accumulation time raises. Moreover, the increment of the saturation level of photodiodes also increases the error in the high illumination region. PMID:22303133

  2. A Validation Study of Merging and Spacing Techniques in a NAS-Wide Simulation

    Science.gov (United States)

    Glaab, Patricia C.

    2011-01-01

    In November 2010, Intelligent Automation, Inc. (IAI) delivered an M&S software tool to that allows system level studies of the complex terminal airspace with the ACES simulation. The software was evaluated against current day arrivals in the Atlanta TRACON using Atlanta's Hartsfield-Jackson International Airport (KATL) arrival schedules. Results of this validation effort are presented describing data sets, traffic flow assumptions and techniques, and arrival rate comparisons between reported landings at Atlanta versus simulated arrivals using the same traffic sets in ACES equipped with M&S. Initial results showed the simulated system capacity to be significantly below arrival capacity seen at KATL. Data was gathered for Atlanta using commercial airport and flight tracking websites (like FlightAware.com), and analyzed to insure compatible techniques were used for result reporting and comparison. TFM operators for Atlanta were consulted for tuning final simulation parameters and for guidance in flow management techniques during high volume operations. Using these modified parameters and incorporating TFM guidance for efficiencies in flowing aircraft, arrival capacity for KATL was matched for the simulation. Following this validation effort, a sensitivity study was conducted to measure the impact of variations in system parameters on the Atlanta airport arrival capacity.

  3. [Harvesting technique of chimeric multiple paddles fibular flap for wide oromandibular defects].

    Science.gov (United States)

    Foy, J-P; Qassemyar, Q; Assouly, N; Temam, S; Kolb, F

    2016-08-01

    Carcinological head and neck reconstruction still remains a challenge due to the volume and varied tissues needed. Large and wide oromandibular defects require, not just the bone but also soft tissues for the pelvilingual reconstruction and therefore, a second free flap may become necessary in addition to a fibular flap. The option of an unique chimeric flap based on the fibular artery and its branches is less known whereas it offers the advantage of a unique flap with bone, muscle and multiple skin paddles, independent of each other. The aim of this technical note is to present step by step the surgical procedure of this chimeric flap and share this method that avoids a second free flap.

  4. Pigmented villonodular synovitis of the elbow treated with the Tsuge wide joint exposure technique.

    Science.gov (United States)

    Chida, Shuichi; Okada, Kyoji; Takahashi, Shu; Nagasawa, Hiroyuki; Sasaki, Hiroshi; Shimada, Yoichi

    2010-02-01

    Pigmented villonodular synovitis (PVNS) is a benign, locally aggressive disease of the synovium; its cause remains unclear. The most frequently involved joint is the knee, followed by the hip, ankle, wrist, and shoulder. Pigmented villonodular synovitis of the elbow joint is rare. Synovectomy is currently believed to be the best treatment for PVNS. Open or arthroscopic synovectomy is usually selected. During synovectomy for PVNS, the possibility of local recurrence after surgery must be considered. The recurrence rate after synovectomy of any joint for PVNS is approximately 40%. Therefore, surgical treatment for PVNS of the elbow requires sufficient removal of the lesion. For good functional results, prevention of postoperative joint stiffness is also necessary. This article describes a case of a 29-year-old woman with PVNS of the right elbow who was treated by total synovectomy using the Tsuge technique. Tsuge reported a new surgical technique for debridement arthroplasty using a posterolateral approach to the elbow in 1987. He has also reported using this procedure during arthroplasty for posttraumatic stiff elbow and for synovectomy in rheumatoid arthritis. This approach permits easy dislocation of the elbow and provides a good view of the whole joint. Although the recurrence rate of PVNS of the elbow is high, our patient has retained good elbow function with no evidence of local recurrence at 30 months postoperatively. Copyright 2010, SLACK Incorporated.

  5. A wide dynamic range CMOS image sensor with dual charge storage in a pixel and a multiple sampling technique

    Science.gov (United States)

    Shafie, Suhaidi; Kawahito, Shoji

    2008-02-01

    This paper presents a dynamic range expansion technique of CMOS image sensors with dual charge storage in a pixel and multiple exposures. Each pixel contains two photodiodes, PD1 and PD2 whose sensitivity can be set independently by the accumulation time. The difference of charge accumulation time in both photodiode can be manipulated to expand the dynamic range of the sensor. It allows flexible control of the dynamic range since the accumulation time in PD2 is adjustable. The multiple exposure technique used in the sensor reduces the motion blur in the synthesized wide dynamic range image when capturing fast-moving objects. It also reduces the signal-to-nose ratio dip at the switching point of the PD1 signal to the PD2 signals in the synthesized wide dynamic range image. A wide dynamic range camera with 320x240 pixels image sensor has been tested. It is found that the sampling of 4 times for the short accumulation time signals is sufficient for the reduction of motion blur in the synthesized wide dynamic range image, and the signal-to-noise ratio dip at the switching point of the PD1 signal to the PD2 signal is improved by 6 dB using 4 short-time exposures.

  6. Understanding defect related luminescence processes in wide bandgap materials using low temperature multi-spectroscopic techniques

    DEFF Research Database (Denmark)

    Prasad, Amit Kumar

    ; it is, therefore, not likely to suffer from same problems as the IRSL signal. The IRPL signal, increases with dose and can be probed non-destructively (especially at low temperatures). Preliminary dating investigations suggest that this signal does not suffer from anomalous fading. There are two...... Quaternary climate changes, landscape development and human evolution and dispersal. Optical properties of feldspar originate from a) a wide band gap (∼ 7.7 eV, b) crystal defects (impurity atoms and distortions) that create localized energy states within the bandgap, and c) the low-mobility band tail states, which...... dosimetric trap to holes located elsewhere in the lattice, which is affected by sensitivity changes leading to several uncertainties in the dose measurement. In contrast, it is shown here that the IRPL signal arises from intra-defect excitation and subsequent radiative emission within the IR dosimetric trap...

  7. Investigations of ultrafast charge dynamics in laser-irradiated targets by a self probing technique employing laser driven protons

    Energy Technology Data Exchange (ETDEWEB)

    Ahmed, H. [School of Mathematics and Physics, Queen' s University Belfast, BT7 1NN (United Kingdom); Kar, S., E-mail: s.kar@qub.ac.uk [School of Mathematics and Physics, Queen' s University Belfast, BT7 1NN (United Kingdom); Cantono, G. [School of Mathematics and Physics, Queen' s University Belfast, BT7 1NN (United Kingdom); Department of Physics “E. Fermi”, Largo B. Pontecorvo 3, 56127 Pisa (Italy); Consiglio Nazionale delle Ricerche, Istituto Nazionale di Ottica, Research Unit Adriano Gozzini, via G. Moruzzi 1, Pisa 56124 (Italy); Nersisyan, G. [School of Mathematics and Physics, Queen' s University Belfast, BT7 1NN (United Kingdom); Brauckmann, S. [Institut für Laser-und Plasmaphysik, Heinrich-Heine-Universität, Düsseldorf (Germany); Doria, D.; Gwynne, D. [School of Mathematics and Physics, Queen' s University Belfast, BT7 1NN (United Kingdom); Macchi, A. [Department of Physics “E. Fermi”, Largo B. Pontecorvo 3, 56127 Pisa (Italy); Consiglio Nazionale delle Ricerche, Istituto Nazionale di Ottica, Research Unit Adriano Gozzini, via G. Moruzzi 1, Pisa 56124 (Italy); Naughton, K. [School of Mathematics and Physics, Queen' s University Belfast, BT7 1NN (United Kingdom); Willi, O. [Institut für Laser-und Plasmaphysik, Heinrich-Heine-Universität, Düsseldorf (Germany); Lewis, C.L.S.; Borghesi, M. [School of Mathematics and Physics, Queen' s University Belfast, BT7 1NN (United Kingdom)

    2016-09-01

    The divergent and broadband proton beams produced by the target normal sheath acceleration mechanism provide the unique opportunity to probe, in a point-projection imaging scheme, the dynamics of the transient electric and magnetic fields produced during laser-plasma interactions. Commonly such experimental setup entails two intense laser beams, where the interaction produced by one beam is probed with the protons produced by the second. We present here experimental studies of the ultra-fast charge dynamics along a wire connected to laser irradiated target carried out by employing a ‘self’ proton probing arrangement – i.e. by connecting the wire to the target generating the probe protons. The experimental data shows that an electromagnetic pulse carrying a significant amount of charge is launched along the wire, which travels as a unified pulse of 10s of ps duration with a velocity close to speed of light. The experimental capabilities and the analysis procedure of this specific type of proton probing technique are discussed. - Highlights: • Prompt charging of laser irradiated target generates ultra-short EM pulses. • Its ultrafast propagation along a wire was studied by self-proton probing technique. • Self-proton probing technique is the proton probing with one laser pulse. • Pulse temporal profile and speed along the wire were measured with high resolution.

  8. Synthesis of CaTiO3 from calcium titanyl oxalate hexahydrate (CTO) as precursor employing microwave heating technique

    Indian Academy of Sciences (India)

    B M Patil; R S Srinivasa; S R Dharwadkar

    2007-06-01

    Calcium titanate, CaTiO3, an important microwave dielectric material and one of major phases in synroc (synthetic rock), a titanate ceramic with potential application for fixation of high level nuclear waste was synthesized from calcium titanyl oxalate [CaTiO (C2O4)2.6H2O] (CTO) by employing microwave heating technique. CTO heated in microwave heating system in air at 500°C for 1 h gave a perovskite, CaTiO3. The product obtained by heating of CTO in the same system at 700°C for the same duration was however, much more crystalline. CaTiO3 obtained by the present method was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and BET surface area measurement.

  9. An information system design for watershed-wide modeling of water loss to the atmosphere using remote sensing techniques

    Science.gov (United States)

    Khorram, S.

    1977-01-01

    Results are presented of a study intended to develop a general location-specific remote-sensing procedure for watershed-wide estimation of water loss to the atmosphere by evaporation and transpiration. The general approach involves a stepwise sequence of required information definition (input data), appropriate sample design, mathematical modeling, and evaluation of results. More specifically, the remote sensing-aided system developed to evaluate evapotranspiration employs a basic two-stage two-phase sample of three information resolution levels. Based on the discussed design, documentation, and feasibility analysis to yield timely, relatively accurate, and cost-effective evapotranspiration estimates on a watershed or subwatershed basis, work is now proceeding to implement this remote sensing-aided system.

  10. Compact Liquid Crystal Based Tunable Band-Stop Filter with an Ultra-Wide Stopband by Using Wave Interference Technique

    Directory of Open Access Journals (Sweden)

    Longzhu Cai

    2017-01-01

    Full Text Available A wave interference filtering section that consists of three stubs of different lengths, each with an individual stopband of its own central frequency, is reported here for the design of band-stop filters (BSFs with ultra-wide and sharp stopbands as well as large attenuation characteristics. The superposition of the individual stopbands provides the coverage over an ultra-wide frequency range. Equations and guidelines are presented for the application of a new wave interference technique to adjust the rejection level and width of its stopband. Based on that, an electrically tunable ultra-wide stopband BSF using a liquid crystal (LC material for ultra-wideband (UWB applications is designed. Careful treatment of the bent stubs, including impedance matching of the main microstrip line and bent stubs together with that of the SMA connectors and impedance adaptors, was carried out for the compactness and minimum insertion and reflection losses. The experimental results of the fabricated device agree very well with that of the simulation. The centre rejection frequency as measured can be tuned between 4.434 and 4.814 GHz when a biased voltage of 0–20 Vrms is used. The 3 dB and 25 dB stopband bandwidths were 4.86 GHz and 2.51 GHz, respectively, which are larger than that of other recently reported LC based tunable BSFs.

  11. Modified partially wide tangents technique in post-mastectomy radiotherapy for patients with left-sided breast cancer

    Institute of Scientific and Technical Information of China (English)

    ZHANG Qian; CHEN Jia-yi; HU Wei-gang; GUO Xiao-mao

    2010-01-01

    Background The role of internal mammary nodes (IMN) irradiation for breast cancer patients after mastectomy remains controversial. This study aimed to compare different techniques for radiation of the chest wall (CW) and IMN post-mastectomy for left-breast cancer patients in terms of dose homogeneity within planning target volume (PTV) and dose to critical structures.Methods Thirty patients underwent CT simulation, while CW, IMN, left lung, heart and contralateral breast were contoured. Three three-dimensional conformal radiotherapy (3D-CRT) techniques, namely, standard tangents, partially wide tangents (PWT), and modified PWT techniques plus intensity modulated radiotherapy (IMRT) technique have been used to radiate CW and IMN. In addition to the target coverage and dose homogeneity, we also evaluated the dose to the critical structures including heart, left lung and contralateral breast.Results All three 3D-CRT techniques provided satisfactory coverage regarding total PTV. The PWT and the modified PWT gave better coverage of IMN PTV with V47.5 of (96.83±4.56)% and (95.19±3.90)% compared to standard tangents ((88.16±7.77)%), P <0.05. The standard tangents also contributed the biggest IMN VD105%, VD110%, VD115% and VD120%. The lowest mean dose of the heart was achieved by the modified PWT ((8.47±2.30) Gy), compared with PWT ((11.97±3.54)Gy) and standard tangents ((11.18±2.53) Gy). The mean dose of lung and contralateral breast with the modified PWT was significantly lower than those with PWT. Comparing IMRT with the modified PWT, both techniques provided satisfactory coverage. The conformity indexes (CI) with IMRT (CI1: 0.71±0.02; CI2: 0.64±0.02) were better than those with the modified PWT (CI1: 0.50±0.02; CI2: 0.45±0.02). The mean dose, V5, V10 and V5-10 of heart and left lung with the modified PWT were significantly lower than those with the IMRT. The mean dose and VD2% of contralateral breast with the modified PWT were not significantly different

  12. Semi-Jailing Technique Using a Neuroform3 Stent for Coiling of Wide-Necked Intracranial Aneurysms

    Science.gov (United States)

    Ko, Jun Kyeung; Cho, Won Ho; Cha, Seung Heon; Choi, Chang Hwa; Lee, Sang Weon; Lee, Tae Hong

    2017-01-01

    Objective The semi-jailing technique (SJT) provides stent-assisted remodeling of the aneurysm neck during coil embolization without grasping the coil delivery microcatheter. We retrospectively evaluated the efficacy and safety of SJT using a Neuroform3 stent for coiling of wide-necked intracranial aneurysms. Methods We collected the clinical and radiological data between January 2009 and June 2015 of the wide-necked aneurysms treated with SJT using a Neuroform3 stent. Results SJT using a Neuroform3 stent was attempted in 70 wide-necked aneurysms (68 patients). There were 56 unruptured and 14 ruptured aneurysms. The size of aneurysm ranged from 1.7 to 28.1 mm (mean 6.1 mm). The immediate angiographic results were complete occlusion in 55 aneurysms (78.6%), neck remnant in 7 (10.0%), and aneurysm remnant in 8 (11.4%). Overall, periprocedural complications occurred in 13 patients (19.1%), including asymptomatic thromboembolism in 7 (10.3%), symptomatic thromboembolism in 4 (5.9%), and symptomatic hemorrhagic complications in 2 (2.9%). Conventional angiography follow-up was obtained in 55 (78.6%) of 70 aneurysms (mean, 10.9 months). The result showed progressive occlusion in 7 aneurysms (12.7%) and recanalization in 1 aneurysm (1.8%). At the end of the observation period (mean, 17.5 months), all 54 patients without subarachnoid hemorrhage showed excellent clinical outcomes (modified Rankin Scale [mRS] 0), except two (mRS 1 or 2) and seven of 14 patients with subarachnoid hemorrhage remained symptom-free (mRS 0). Conclusion In this report of 70 aneurysms, SJT using a Neuroform3 stent for coiling of wide-necked intracranial aneurysms showed good technical safety, as well as favorable clinical and angiographic outcomes. PMID:28264234

  13. Entire Papilla Preservation Technique: A Novel Surgical Approach for Regenerative Treatment of Deep and Wide Intrabony Defects.

    Science.gov (United States)

    Aslan, Serhat; Buduneli, Nurcan; Cortellini, Pierpaolo

    Primary wound closure and uneventful early wound stability over the biomaterials are the most critical elements of successful periodontal regeneration. Yet the surgical elevation of the interdental papilla to access deep and wide intrabony defects entails an impairment of the papillary blood supply that can result in difficult healing due to a lack of primary closure in the early healing period. This negative event might complicate the healing process, favoring bacterial contamination. A novel modified tunnel surgical technique designed to maintain the integrity of the interdental papilla is presented in this article, with the aim of providing an optimal environment for wound healing in regenerative procedures. Entire papilla preservation is described and applied in three different cases, in association with the use of a combination of bone substitutes and enamel matrix derivative for periodontal regeneration. The entire papilla preservation technique was successfully applied to the three selected cases, resulting in an uneventful postsurgical period and a substantial defect fill over the 8-month follow-up. This tunnel-like technique can be recommended for further research to support the success identified in this case series.

  14. Thermophysical properties of solid phase ruthenium measured by the pulse calorimetry technique over a wide temperature range

    Energy Technology Data Exchange (ETDEWEB)

    Milosevic, Nenad; Nikolic, Ivana [Belgrade Univ. (Serbia). Vinca Institute of Nuclear Sciences

    2015-04-15

    This paper presents experimental results on four thermophysical properties of pure polycrystalline ruthenium samples over a wide temperature range. Specific heat capacity and specific electrical resistivity were measured from 250 to 2 500 K, while hemispherical total emissivity and normal spectral emissivity at 900 nm were measured from 1 300 to 2 500 K. All the properties were obtained by using the pulse calorimetry technique. The 200 mm long specimens were in the form of a thin rod, of about 3 mm in diameter. For necessary corrections, literature data on thermal linear expansion were applied. The results are compared with available literature data and discussed. The specific heat capacity and specific electrical resistivity measurements did not indicate any allotropic transformation of the samples over the entire temperature range.

  15. Applying the nominal group technique in an employment relations conflict situation: A case study of a university maintenance section in South Africa

    Directory of Open Access Journals (Sweden)

    Cornelis (Kees S. van der Waal

    2009-04-01

    Full Text Available After a breakdown in employment relations in the maintenance section of a higher education institution, the authors were asked to intervene in order to try and solve the employment relations conflict situation. It was decided to employ the Nominal Group Technique (NGT as a tool in problem identification during conflict in the workplace. An initial investigation of documentation and interviews with prominent individuals in the organisation was carried out. The NGT was then used in four focus group discussions to determine the important issues as seen by staff members. The NGT facilitates the determination of shared perceptions and the ranking of ideas. The NGT was used in diverse groups, necessitating adaptations to the technique. The perceived causes of the conflict were established. The NGT can be used in a conflict situation in the workplace in order to establish the perceived causes of employment relations conflict.

  16. Genome-Wide Screening of Cytogenetic Abnormalities in Multiple Myeloma Patients Using Array-CGH Technique: A Czech Multicenter Experience

    Directory of Open Access Journals (Sweden)

    Jan Smetana

    2014-01-01

    Full Text Available Characteristic recurrent copy number aberrations (CNAs play a key role in multiple myeloma (MM pathogenesis and have important prognostic significance for MM patients. Array-based comparative genomic hybridization (aCGH provides a powerful tool for genome-wide classification of CNAs and thus should be implemented into MM routine diagnostics. We demonstrate the possibility of effective utilization of oligonucleotide-based aCGH in 91 MM patients. Chromosomal aberrations associated with effect on the prognosis of MM were initially evaluated by I-FISH and were found in 93.4% (85/91. Incidence of hyperdiploidy was 49.5% (45/91; del(13(q14 was detected in 57.1% (52/91; gain(1(q21 occurred in 58.2% (53/91; del(17(p13 was observed in 15.4% (14/91; and t(4;14(p16;q32 was found in 18.6% (16/86. Genome-wide screening using Agilent 44K aCGH microarrays revealed copy number alterations in 100% (91/91. Most common deletions were found at 13q (58.9%, 1p (39.6%, and 8p (31.1%, whereas gain of whole 1q was the most often duplicated region (50.6%. Furthermore, frequent homozygous deletions of genes playing important role in myeloma biology such as TRAF3, BIRC1/BIRC2, RB1, or CDKN2C were observed. Taken together, we demonstrated the utilization of aCGH technique in clinical diagnostics as powerful tool for identification of unbalanced genomic abnormalities with prognostic significance for MM patients.

  17. Simple Method to Synthesize Functionalized Carbon Nanotubes Employing Cobalt Nitrate and Acetone by Using Spray Pyrolysis Deposition Technique

    Directory of Open Access Journals (Sweden)

    Jorge A. Gómez

    2012-01-01

    Full Text Available Recently alcohols and ketones have been employed to sensitize CNT by CVD. A study has shown the importance of the chemical nature of those carbon precursors on the characteristics of the CNT (carbon nanotubes obtained. In the present work we show the influence of the catalyst employed on the synthesis of functionalized multiwall carbon nanotubes (MWCNTs utilizing acetone as carbon source and cobalt nitrate Co(NO32 as catalyst.

  18. Generation and distribution of a wide-band continuously tunable millimeter-wave signal with an optical external modulation technique

    Science.gov (United States)

    Qi, Guohua; Yao, Jianping; Seregelyi, J.; Paquet, S.; Belisle, C.

    2005-10-01

    A new technique to generate and distribute a wide-band continuously tunable millimeter-wave signal using an optical external modulator and a wavelength-fixed optical notch filter is proposed. The optical intensity modulator is biased to suppress the odd-order optical sidebands. The wavelength-fixed optical notch filter is then used to filter out the optical carrier. Two second-order optical sidebands are obtained at the output of the notch filter. A millimeter-wave signal that has four times the frequency of the microwave drive signal is generated by beating the two second-order optical sidebands at a photodetector. Since no tunable optical filter is used, the system is easy to implement. A system using an LiNbO3 intensity modulator and a fiber Bragg grating filter is built. A stable and high spectral purity millimeter-wave signal tunable from 32 to 50 GHz is obtained by tuning the microwave drive signal from 8 to 12.5 GHz. The integrity of the generated millimeter-wave signal is maintained after transmission over a 25-km standard single-mode fiber. Theoretical analysis on the harmonic suppression with different modulation depths and filter attenuations is also discussed.

  19. Highly Sensitive and Wide-Dynamic-Range Multichannel Optical-Fiber pH Sensor Based on PWM Technique.

    Science.gov (United States)

    Khan, Md Rajibur Rahaman; Kang, Shin-Won

    2016-11-09

    In this study, we propose a highly sensitive multichannel pH sensor that is based on an optical-fiber pulse width modulation (PWM) technique. According to the optical-fiber PWM method, the received sensing signal's pulse width changes when the optical-fiber pH sensing-element of the array comes into contact with pH buffer solutions. The proposed optical-fiber PWM pH-sensing system offers a linear sensing response over a wide range of pH values from 2 to 12, with a high pH-sensing ability. The sensitivity of the proposed pH sensor is 0.46 µs/pH, and the correlation coefficient R² is approximately 0.997. Additional advantages of the proposed optical-fiber PWM pH sensor include a short/fast response-time of about 8 s, good reproducibility properties with a relative standard deviation (RSD) of about 0.019, easy fabrication, low cost, small size, reusability of the optical-fiber sensing-element, and the capability of remote sensing. Finally, the performance of the proposed PWM pH sensor was compared with that of potentiometric, optical-fiber modal interferometer, and optical-fiber Fabry-Perot interferometer pH sensors with respect to dynamic range width, linearity as well as response and recovery times. We observed that the proposed sensing systems have better sensing abilities than the above-mentioned pH sensors.

  20. Glass transition and dynamics in BSA-water mixtures over wide ranges of composition studied by thermal and dielectric techniques.

    Science.gov (United States)

    Panagopoulou, A; Kyritsis, A; Sabater I Serra, R; Gómez Ribelles, J L; Shinyashiki, N; Pissis, P

    2011-12-01

    Protein-water dynamics in mixtures of water and a globular protein, bovine serum albumin (BSA), was studied over wide ranges of composition, in the form of solutions or hydrated solid pellets, by differential scanning calorimetry (DSC), thermally stimulated depolarization current technique (TSDC) and dielectric relaxation spectroscopy (DRS). Additionally, water equilibrium sorption isotherm (ESI) measurements were performed at room temperature. The crystallization and melting events were studied by DSC and the amount of uncrystallized water was calculated by the enthalpy of melting during heating. The glass transition of the system was detected by DSC for water contents higher than the critical water content corresponding to the formation of the first sorption layer of water molecules directly bound to primary hydration sites, namely 0.073 (grams of water per grams of dry protein), estimated by ESI. A strong plasticization of the T(g) was observed by DSC for hydration levels lower than those necessary for crystallization of water during cooling, i.e. lower than about 0.3 (grams of water per grams of hydrated protein) followed by a stabilization of T(g) at about -80°C for higher water contents. The α relaxation associated with the glass transition was also observed in dielectric measurements. In TSDC a microphase separation could be detected resulting in double T(g) for some hydration levels. A dielectric relaxation of small polar groups of the protein plasticized by water, overlapped by relaxations of uncrystallized water molecules, and a separate relaxation of water in the crystallized water phase (bulk ice crystals) were also recorded.

  1. Highly Sensitive and Wide-Dynamic-Range Multichannel Optical-Fiber pH Sensor Based on PWM Technique

    Directory of Open Access Journals (Sweden)

    Md. Rajibur Rahaman Khan

    2016-11-01

    Full Text Available In this study, we propose a highly sensitive multichannel pH sensor that is based on an optical-fiber pulse width modulation (PWM technique. According to the optical-fiber PWM method, the received sensing signal’s pulse width changes when the optical-fiber pH sensing-element of the array comes into contact with pH buffer solutions. The proposed optical-fiber PWM pH-sensing system offers a linear sensing response over a wide range of pH values from 2 to 12, with a high pH-sensing ability. The sensitivity of the proposed pH sensor is 0.46 µs/pH, and the correlation coefficient R2 is approximately 0.997. Additional advantages of the proposed optical-fiber PWM pH sensor include a short/fast response-time of about 8 s, good reproducibility properties with a relative standard deviation (RSD of about 0.019, easy fabrication, low cost, small size, reusability of the optical-fiber sensing-element, and the capability of remote sensing. Finally, the performance of the proposed PWM pH sensor was compared with that of potentiometric, optical-fiber modal interferometer, and optical-fiber Fabry–Perot interferometer pH sensors with respect to dynamic range width, linearity as well as response and recovery times. We observed that the proposed sensing systems have better sensing abilities than the above-mentioned pH sensors.

  2. MR assessment of left ventricular function: quantitative comparison of fast imaging employing steady-state acquisition (FIESTA) with fast gradient echo cine technique.

    Science.gov (United States)

    Li, Wei; Stern, Jessica S; Mai, Vu M; Pierchala, Linda N; Edelman, Robert R; Prasad, Pottumarthi V

    2002-11-01

    To evaluate the agreement of fast imaging employing steady-state acquisition (FIESTA) cine technique with segmented k-space fast gradient echo (GRE) cine technique when using them for assessment of cardiac function. Eleven MR cine studies were performed on six healthy volunteers and five patients, using FIESTA and fast GRE techniques. The quantitative measurements of ventricular function obtained from the two techniques were compared. The data analysis was performed by two observers independently. Compared to fast GRE cine technique, FIESTA cine technique consistently resulted in higher end-diastolic volume (10.2%) and end-systolic volume (21.6%), but lower myocardial mass of left ventricle (19.2%) and ejection fraction (9.9%). The stroke volume obtained from the two techniques was very close. The primary explanation for this variability is that the two techniques have different mechanisms on establishing signal contrast. Compared to fast GRE technique, FIESTA provides significantly different results when using it for assessment of left ventricular function. It is important to consider this difference in the assessment of cardiac function. Copyright 2002 Wiley-Liss, Inc.

  3. New Techniques in Time-Frequency Analysis: Adaptive Band, Ultra-Wide Band and Multi-Rate Signal Processing

    Science.gov (United States)

    2016-03-02

    There are numerous motivations for extending signal processing, and in particular, sampling theory , to non- Euclidean spaces, and in particular...AVAILABILITY STATEMENT Unlimited DISTRIBUTION A 13. SUPPLEMENTARY NOTES 14. ABSTRACT The project led to the development of new techniques and theories ...in the analysis of signals. These techniques and theories were extensions of known techniques -- sampling, Fourier, Gabor and wavelet analysis, and

  4. High efficiency 600-mW pHEMT distributed power amplifier employing drain impedance tapering technique

    DEFF Research Database (Denmark)

    Narendra, Kumar; Anand, Lokesh; Pragash, Sangaran;

    2008-01-01

    4-stage distributed power amplifier (DPA) employing tapering the drain load networks to achieve high efficiency is reported. The active device with enhancement mode pHEMT (pseudomorphic High Electron Mobility Transistor) technology is used. Measurement results of 600 mW, 30 % of power-aided-effic......-aided-efficiency (PAE) and gain of 10 dB is achieved within frequency range of 10–1800 MHz. Low supply voltage of 4.5 V is used for each device. Good agreement between measured and simulated results is obtained....

  5. High efficiency 600-mW pHEMT distributed power amplifier employing drain impedance tapering technique

    DEFF Research Database (Denmark)

    Narendra, Kumar; Anand, Lokesh; Pragash, Sangaran

    2008-01-01

    4-stage distributed power amplifier (DPA) employing tapering the drain load networks to achieve high efficiency is reported. The active device with enhancement mode pHEMT (pseudomorphic High Electron Mobility Transistor) technology is used. Measurement results of 600 mW, 30 % of power-aided-efficiency...... (PAE) and gain of 10 dB is achieved within frequency range of 10–1800 MHz. Low supply voltage of 4.5 V is used for each device. Good agreement between measured and simulated results is obtained....

  6. The "Robustness" of Vocabulary Intervention in the Public Schools: Targets and Techniques Employed in Speech-Language Therapy

    Science.gov (United States)

    Justice, Laura M.; Schmitt, Mary Beth; Murphy, Kimberly A.; Pratt, Amy; Biancone, Tricia

    2014-01-01

    This study examined vocabulary intervention--in terms of targets and techniques--for children with language impairment receiving speech-language therapy in public schools (i.e., non-fee-paying schools) in the United States. Vocabulary treatments and targets were examined with respect to their alignment with the empirically validated practice of…

  7. Solution-Phase Synthesis of Dipeptides: A Capstone Project That Employs Key Techniques in an Organic Laboratory Course

    Science.gov (United States)

    Marchetti, Louis; DeBoef, Brenton

    2015-01-01

    A contemporary approach to the synthesis and purification of several UV-active dipeptides has been developed for the second-year organic laboratory. This experiment exposes students to the important technique of solution-phase peptide synthesis and allows an instructor to highlight the parallel between what they are accomplishing in the laboratory…

  8. Solution-Phase Synthesis of Dipeptides: A Capstone Project That Employs Key Techniques in an Organic Laboratory Course

    Science.gov (United States)

    Marchetti, Louis; DeBoef, Brenton

    2015-01-01

    A contemporary approach to the synthesis and purification of several UV-active dipeptides has been developed for the second-year organic laboratory. This experiment exposes students to the important technique of solution-phase peptide synthesis and allows an instructor to highlight the parallel between what they are accomplishing in the laboratory…

  9. Wide-angle KTa1- x Nb x O3 deflector for swept light source using DC charge technique

    Science.gov (United States)

    Akiyama, Tatsuhiro; Shinagawa, Mitsuru; Ueno, Masahiro; Sasaki, Yuzo; Toyoda, Seiji; Sakamoto, Tadashi

    2016-09-01

    A 5-pass KTa1- x Nb x O3 (KTN) deflector based on a DC charge technique for the swept light source of an optical coherence tomography system is proposed. The DC charge technique used in a 3-pass KTN deflector enables us to obtain the long-term stability of the optical power without any degradation of the important features of the swept light source. Experimental results confirm that the coherence length of a swept light source with the 5-pass KTN deflector using the DC charge technique is almost equal to that using a precharge technique reported previously. This means that the DC charge technique does not degrade the coherence length. There are limitation values for applied voltage, the KTN electrode gap, relative dielectric constant, and sweep frequency of the KTN deflector in terms of obtaining long coherence length. We believe that a 7-pass KTN deflector is effective for obtaining a longer coherence length.

  10. Employing a CGE model in analysing the environmental and economy-wide impacts of CO2 emission abatement policies in Malaysia.

    Science.gov (United States)

    Yahoo, Masoud; Othman, Jamal

    2017-04-15

    The impact of global warming has received much international attention in recent decades. To meet climate-change mitigation targets, environmental policy instruments have been designed to transform the way goods and services are produced as well as alter consumption patterns. The government of Malaysia is strongly committed to reducing CO2 gas emissions as a proportion of GDP by 40% from 2005 levels by the year 2020. This study evaluates the economy-wide impacts of implementing two different types of CO2 emission abatement policies in Malaysia using market-based (imposing a carbon tax) and command-and-control mechanism (sectoral emission standards). The policy simulations conducted involve the removal of the subsidy on petroleum products by the government. A carbon emission tax in conjunction with the revenue neutrality assumption is seen to be more effective than a command-and-control policy as it provides a double dividend. This is apparent as changes in consumption patterns lead to welfare enhancements while contributing to reductions in CO2 emissions. The simulation results show that the production of renewable energies is stepped up when the imposition of carbon tax and removal of the subsidy is augmented by revenue recycling. This study provides an economy-wide assessment that compares two important tools for assisting environment policy makers evaluate carbon emission abatement initiatives in Malaysia.

  11. The 'robustness' of vocabulary intervention in the public schools: targets and techniques employed in speech-language therapy.

    Science.gov (United States)

    Justice, Laura M; Schmitt, Mary Beth; Murphy, Kimberly A; Pratt, Amy; Biancone, Tricia

    2014-01-01

    This study examined vocabulary intervention-in terms of targets and techniques-for children with language impairment receiving speech-language therapy in public schools (i.e., non-fee-paying schools) in the United States. Vocabulary treatments and targets were examined with respect to their alignment with the empirically validated practice of rich vocabulary intervention. Participants were forty-eight 5-7-year-old children participating in kindergarten or the first-grade year of school, all of whom had vocabulary-specific goals on their individualized education programmes. Two therapy sessions per child were coded to determine what vocabulary words were being directly targeted and what techniques were used for each. Study findings showed that the majority of words directly targeted during therapy were lower-level basic vocabulary words (87%) and very few (1%) were academically relevant. On average, three techniques were used per word to promote deep understanding. Interpreting findings against empirical descriptions of rich vocabulary intervention indicates that children were exposed to some but not all aspects of this empirically supported practice.

  12. Automatic Classification of the Sub-Techniques (Gears Used in Cross-Country Ski Skating Employing a Mobile Phone

    Directory of Open Access Journals (Sweden)

    Thomas Stöggl

    2014-10-01

    Full Text Available The purpose of the current study was to develop and validate an automatic algorithm for classification of cross-country (XC ski-skating gears (G using Smartphone accelerometer data. Eleven XC skiers (seven men, four women with regional-to-international levels of performance carried out roller skiing trials on a treadmill using fixed gears (G2left, G2right, G3, G4left, G4right and a 950-m trial using different speeds and inclines, applying gears and sides as they normally would. Gear classification by the Smartphone (on the chest and based on video recordings were compared. Formachine-learning, a collective database was compared to individual data. The Smartphone application identified the trials with fixed gears correctly in all cases. In the 950-m trial, participants executed 140 ± 22 cycles as assessed by video analysis, with the automatic Smartphone application giving a similar value. Based on collective data, gears were identified correctly 86.0% ± 8.9% of the time, a value that rose to 90.3% ± 4.1% (P < 0.01 with machine learning from individual data. Classification was most often incorrect during transition between gears, especially to or from G3. Identification was most often correct for skiers who made relatively few transitions between gears. The accuracy of the automatic procedure for identifying G2left, G2right, G3, G4left and G4right was 96%, 90%, 81%, 88% and 94%, respectively. The algorithm identified gears correctly 100% of the time when a single gear was used and 90% of the time when different gears were employed during a variable protocol. This algorithm could be improved with respect to identification of transitions between gears or the side employed within a given gear.

  13. Automatic classification of the sub-techniques (gears) used in cross-country ski skating employing a mobile phone.

    Science.gov (United States)

    Stöggl, Thomas; Holst, Anders; Jonasson, Arndt; Andersson, Erik; Wunsch, Tobias; Norström, Christer; Holmberg, Hans-Christer

    2014-10-31

    The purpose of the current study was to develop and validate an automatic algorithm for classification of cross-country (XC) ski-skating gears (G) using Smartphone accelerometer data. Eleven XC skiers (seven men, four women) with regional-to-international levels of performance carried out roller skiing trials on a treadmill using fixed gears (G2left, G2right, G3, G4left, G4right) and a 950-m trial using different speeds and inclines, applying gears and sides as they normally would. Gear classification by the Smartphone (on the chest) and based on video recordings were compared. Formachine-learning, a collective database was compared to individual data. The Smartphone application identified the trials with fixed gears correctly in all cases. In the 950-m trial, participants executed 140 ± 22 cycles as assessed by video analysis, with the automatic Smartphone application giving a similar value. Based on collective data, gears were identified correctly 86.0% ± 8.9% of the time, a value that rose to 90.3% ± 4.1% (P < 0.01) with machine learning from individual data. Classification was most often incorrect during transition between gears, especially to or from G3. Identification was most often correct for skiers who made relatively few transitions between gears. The accuracy of the automatic procedure for identifying G2left, G2right, G3, G4left and G4right was 96%, 90%, 81%, 88% and 94%, respectively. The algorithm identified gears correctly 100% of the time when a single gear was used and 90% of the time when different gears were employed during a variable protocol. This algorithm could be improved with respect to identification of transitions between gears or the side employed within a given gear.

  14. Guidelines for the use of mathematics in operational area-wide integrated pest management programs using the sterile insect technique with a special focus on Tephritid Fruit Flies

    Science.gov (United States)

    Pest control managers can benefit from using mathematical approaches, particularly models, when implementing area-wide pest control programs that include sterile insect technique (SIT), especially when these are used to calculate required rates of sterile releases to result in suppression or eradica...

  15. Reconstruction of a Tornado Disaster Employing Remote Sensing Techniques: A Case Study of the 1999 Moore, Oklahoma Tornado

    Science.gov (United States)

    Wagner, Melissa A.

    Remote sensing has demonstrated to be an instrumental tool in monitoring land changes as a result of anthropogenic change or natural disasters. Most disaster studies have focused on large-scale events with few analyzing small-scale disasters such as tornadoes. These studies have only provided a damage assessment perspective with the continued need to assess reconstruction. This study attempts to fill that void by examining recovery from the 1999 Moore, Oklahoma Tornado utilizing Landsat TM and ETM+ imagery. Recovery was assessed for 2000, 2001 and 2002 using spectral enhancements (vegetative and urban indices and a combination of the two), a recovery index and different statistical thresholds. Classification accuracy assessments were performed to determine the precision of recovery and select the best results. This analysis proved that medium resolution imagery could be used in conjunction with geospatial techniques to capture recovery. The new indices, Shortwave Infrared Index (SWIRI) and Coupled Vegetation and Urban Index (CVUI), developed for disaster management, were the most effective at discerning reconstruction using the 1.5 standard deviation threshold. Recovery rates for F-scale damages revealed that the most incredibly damaged areas associated with an F5 rating were the slowest to recover, while the lesser damaged areas associated with F1-F3 ratings were the quickest to rebuild. These findings were consistent for 2000, 2001 and 2002 also exposing that complete recovery was never attained in any of the F-scale damage zones by 2002. This study illustrates the significance the biophysical impact has on recovery as well as the effectiveness of using medium resolution imagery such as Landsat in future research.

  16. Combined multiaxial deformation of polymers with in situ small angle and wide angle x-ray scattering techniques.

    Science.gov (United States)

    Gurun, B; Thio, Y S; Bucknall, D G

    2009-12-01

    A unique multiaxial deformation device has been designed and built specifically for simultaneous synchrotron small angle x-ray scattering (SAXS) and wide angle x-ray scattering (WAXS) measurements. The device can operate at strain rates of 0.0005-0.3 s(-1) and induce strains up to stretch ratios of 5. Measurements can either be made at ambient or at elevated temperatures (up to approximately 150 degrees C), the latter using a heating unit. The capabilities of the device coupled with simultaneous SAXS/WAXS measurements have been demonstrated by studying the morphological evolution of a number of polymers and their nanocomposites.

  17. A-189 dBc/Hz FoMT Wide Tuning Range VCO Using Q-Factor Enhancement Technique

    Science.gov (United States)

    Liu, Faen; Wang, Zhigong; Li, Zhiqun; Li, Qin; Wang, Rong; Yang, Geliang; Li, Zhu

    2015-06-01

    A 28-GHz voltage-controlled oscillator (VCO) with a wide tuning range and a low phase noise is presented in this paper. A PMOS-only cross-coupled pair with a lower flicker noise is exploited to provide the negative resistance. The mechanisms for enhancing the Q-factor of the LC tank at millimeter-wave (mm-wave) frequencies are analyzed and applied to optimize the proposed VCO design to obtain a low phase noise. To guarantee accurate oscillating frequencies, distributed interconnections are carefully modeled by EM simulations. Fabricated in a standard 90-nm CMOS process, the proposed VCO achieves a wide tuning range of 20.1 %, from 25 to 30.66 GHz and a low phase noise of -105.47 dBc/Hz at 1-MHz offset. The current of the core circuit is 10.5 mA under a single 1.2-V supply. The core area of the chip is 0.38 mm × 0.24 mm.

  18. Ultra Wide X-Band Microwave Imaging of Concealed Weapons and Explosives Using 3D-SAR Technique

    Directory of Open Access Journals (Sweden)

    P. Millot

    2015-01-01

    Full Text Available In order to detect and image concealed weapons and explosives, an electromagnetic imaging tool with its related signal processing is presented. The aim is to penetrate clothes and to find personal-born weapons and explosives under clothes. The chosen UWB frequency range covers the whole X-band. The frequency range is justified after transmission measurements of numerous clothes that are dry or slightly wet. The apparatus and the 3D near-field SAR processor are described. A strategy for contour identification is presented with results of some simulants of weapon and explosive. A conclusion is drawn on the possible future of this technique.

  19. Off-axis sparse aperture imaging using phase optimization techniques for application in wide-area imaging systems.

    Science.gov (United States)

    Mahalanobis, Abhijit; Neifeld, Mark; Bhagavatula, Vijaya Kumar; Haberfelde, Thomas; Brady, David

    2009-10-01

    Sparse apertures find imaging applications in diverse fields such as astronomy and medicine. We are motivated by the design of a wide-area imaging system where sparse apertures can be used to construct novel and efficient optical designs. Specifically, we investigate the use of sparse apertures for off-axis imaging at infrared wavelengths while combating the effects of chromaticity to preserve resolution. In principle, several such sparse apertures can be interleaved within a common aperture to simultaneously image in multiple directions. This can ultimately lead to the design of wide-area imaging systems that require considerably less optical and electronic hardware. The resolution achievable using a sparse aperture is the same as that of a fully open aperture. In the case of off-axis imaging, however, the point spread function (PSF) introduces a blur due to chromaticity that degrades the resolution of the system. Of course, the blur can be eliminated by imaging at a single wavelength. However the signal-to-noise ratio (SNR) is poor, which ultimately degrades image quality. To improve SNR, it is necessary to widen the band of wavelengths, which of course degrades resolution due to chromaticity. Hence there is a fundamental trade between the SNR and the resolution as a function of bandwidth. We show that by using a combination of microprisms and phase optimized micropistons it is possible to reduce the chromatic blur over a band of wavelengths and improve the PSF considerably to restore the resolution of the image. The concepts are validated by means of simulations and verified with experimental data to demonstrate the advantages of phase optimized micropistons in off-axis sparse aperture imaging systems.

  20. Terahertz Wide-Angle Imaging and Analysis on Plane-wave Criteria Based on Inverse Synthetic Aperture Techniques

    Science.gov (United States)

    Gao, Jing Kun; Qin, Yu Liang; Deng, Bin; Wang, Hong Qiang; Li, Jin; Li, Xiang

    2016-04-01

    This paper presents two parts of work around terahertz imaging applications. The first part aims at solving the problems occurred with the increasing of the rotation angle. To compensate for the nonlinearity of terahertz radar systems, a calibration signal acquired from a bright target is always used. Generally, this compensation inserts an extra linear phase term in the intermediate frequency (IF) echo signal which is not expected in large-rotation angle imaging applications. We carried out a detailed theoretical analysis on this problem, and a minimum entropy criterion was employed to estimate and compensate for the linear-phase errors. In the second part, the effects of spherical wave on terahertz inverse synthetic aperture imaging are analyzed. Analytic criteria of plane-wave approximation were derived in the cases of different rotation angles. Experimental results of corner reflectors and an aircraft model based on a 330-GHz linear frequency-modulated continuous wave (LFMCW) radar system validated the necessity and effectiveness of the proposed compensation. By comparing the experimental images obtained under plane-wave assumption and spherical-wave correction, it also showed to be highly consistent with the analytic criteria we derived.

  1. Ultralow-quiescent-current and wide-load-range low-dropout linear regulator with self-biasing technique for micropower battery management

    Science.gov (United States)

    Ozaki, Toshihiro; Hirose, Tetsuya; Asano, Hiroki; Kuroki, Nobutaka; Numa, Masahiro

    2017-04-01

    In this paper, we present a 151 nA quiescent and 6.8 mA maximum-output-current low-dropout (LDO) linear regulator for micropower battery management. The LDO regulator employs self-biasing and multiple-stacked cascode techniques to achieve efficient, accurate, and high-voltage-input-tolerant operation. Measurement results demonstrated that the proposed LDO regulator operates with an ultralow quiescent current of 151 nA. The maximum output currents with a 4.16 V output were 1.0 and 6.8 mA when the input voltages were 4.25 and 5.0 V, respectively.

  2. The comparative accuracy of the ROSA stereotactic robot across a wide range of clinical applications and registration techniques.

    Science.gov (United States)

    Brandmeir, Nicholas J; Savaliya, Sandip; Rohatgi, Pratik; Sather, Michael

    2017-05-08

    Robot-assisted stereotactic neurosurgery is an emerging technology with a growing range of applications. The ROSA system is a robotic stereotactic system that has been shown to be accurate in laboratory studies and large case series. The goal of this study was to examine the accuracy of the ROSA across different registration methods as well as different clinical applications. Sixteen patients with one hundred and seventeen stereotactic trajectories were examined. Accuracy was compared by measuring the distance between the trajectory target and the actual termination of the device as determined by imaging. Entry error and angular deviation were also measured. Variables included bone fiducials vs. laser facial scanning, the clinical indication for stereotactic surgery, and the effect of lead deflection on accuracy. Bone fiducials did not offer an accuracy benefit over laser facial scanning (mean target error 4.5-3.9 mm, p = 0.34) in these clinical scenarios. Laser interstitial thermal therapy, responsive neurostimulation, and stereo electroencephalography were equally accurate when placed by the ROSA (mean target error 4.4-4.3-4.0 mm, respectively, p = 0.69). Deflection did not affect lead accuracy (mean target error 4.4-3.9 mm, p = 0.11). Similar results are seen for entry error and angular deviation. ROSA is a highly accurate stereotactic system. Laser facial scanning provides the same accuracy as bone fiducials in these stereotactic applications. The ROSA is equally accurate across a wide spectrum of applications. The ROSA is effective at limiting lead deflection, and when it does occur, it does not impact target accuracy in a significant way.

  3. Application of wide-angle scattering techniques using microfocus X-ray beam to investigate structural variation in polymer laminates

    Energy Technology Data Exchange (ETDEWEB)

    Bhagat, R

    1999-09-01

    Experiments have been conducted at the European Synchrotron Radiation Facility (ESRF) at Grenoble (France). The Synchrotron Radiation used provides a monochromatic X-ray beam with brilliance and flux density far greater than is attainable with a rotating anode laboratory source. In addition the glass capillary optics used, increases the flux density at the capillary exit as well as providing a sub-micron beam which coupled with the XYZ stage allows data to be collected at high spatial resolution. A Photonics Science CCD detector coupled to a frame grabber has permitted data to be collected at high temporal resolution (40ms) as well as displaying the data in real-time mode. Software used during analysis was used to reduce the amount of spurious signals due to background scatter as well as enable results to be calculated with a high degree of confidence. The aim of this research was to investigate the effect of industrial processing parameters in production of PET laminates and PEN films. Wide Angle X-ray Scattering (WAXS) patterns have been collected, using a beam size of 2.3 {mu}m at intervals of 1 {mu}m through the sample. Crystallite sizeand orientation analyses on patterns collected have been used as an indication of changes in the structural morphology through the thickness of the films. Data analyses of PET films show that biaxial stretching of films is very complex and depending on the parameters at each stage of the process, the final film has very different characteristics. It has been shown that the effects of draw ratio and draw temperature in the forward direction results in a range of crystallite sizes that lead to either crystal fracture or reorientation of the crystallites as the dominant process in the transverse draw. The effects of annealing can also lead to crystal welding or melting and re-crystallisation depending on the amount of time spent in the lamination process. Data analyses of PEN films show that the choice of parameters in biaxial

  4. Flow velocity profiling using acoustic time of flight flow metering based on wide band signals and adaptive beam-forming techniques

    Science.gov (United States)

    Murgan, I.; Candel, I.; Ioana, C.; Digulescu, A.; Bunea, F.; Ciocan, G. D.; Anghel, A.; Vasile, G.

    2016-11-01

    In this paper, we present a novel approach to non-intrusive flow velocity profiling technique using multi-element sensor array and wide-band signal's processing methods. Conventional techniques for the measurements of the flow velocity profiles are usually based on intrusive instruments (current meters, acoustic Doppler profilers, Pitot tubes, etc.) that take punctual velocity readings. Although very efficient, these choices are limited in terms of practical cases of applications especially when non-intrusive measurements techniques are required and/or a spatial accuracy of the velocity profiling is required This is due to factors related to hydraulic machinery down time, the often long time duration needed to explore the entire section area, the frequent cumbersome number of devices that needs to be handled simultaneously, or the impossibility to perform intrusive tests. In the case of non-intrusive flow profiling methods based on acoustic techniques, previous methods concentrated on using a large number of acoustic transducers placed around the measured section. Although feasible, this approach presents several major drawbacks such as a complicated signal timing, transmission, acquisition and recording system, resulting in a relative high cost of operation. In addition, because of the geometrical constraints, a desired number of sensors may not be installed. Recent results in acoustic flow metering based on wide band signals and adaptive beamforming proved that it is possible to achieve flow velocity profiles using less acoustic transducers. In a normal acoustic time of flight path the transducers are both emitters and receivers, sequentially changing their roles. In the new configuration, proposed in this paper, two new receivers are added on each side. Since the beam angles of each acoustic transducer are wide enough the newly added transducers can receive the transmitted signals and additional time of flight estimation can be done. Thus, several flow

  5. IN VIVO KINEMATICS OF THE ANTERIOR CRUCIATE LIGAMENT DEFICIENT KNEE DURING WIDE-BASED SQUAT USING A 2D/3D REGISTRATION TECHNIQUE

    Directory of Open Access Journals (Sweden)

    Takeshi Miyaji

    2012-12-01

    Full Text Available Anterior cruciate ligament (ACL deficiency increases the risk of early osteoarthritis (OA. Studies of ACL deficient knee kinematics would be important to reveal the disease process and therefore to find mechanisms which would potentially slow OA progression. The purpose of this study was to determine if in vivo kinematics of the anterior cruciate ligament deficient (ACLD knee during a wide-based squat activity differ from kinematics of the contralateral intact knee. Thirty-three patients with a unilateral ACLD knee consented to participate in this institutional review board approved study with the contralateral intact knee serving as the control. In vivo knee kinematics during the wide-based squat were analyzed using a 2D/3D registration technique utilizing CT-based bone models and lateral fluoroscopy. Comparisons were performed using values between 0 and 100° flexion both in flexion and extension phases of the squat activity. Both the ACLD and intact knees demonstrated increasing tibial internal rotation with knee flexion, and no difference was observed in tibial rotation between the groups. The tibia in the ACLD knee was more anterior than that of the contralateral knees at 0 and 5° flexion in both phases (p < 0.05. Tibiofemoral medial contact points of the ACLD knees were more posterior than that of the contralateral knees at 5, 10 and 15° of knee flexion in the extension phase of the squat activity (p < 0.05. Tibiofemoral lateral contact points of the ACLD knees were more posterior than that of the contralateral knees at 0° flexion in the both phases (p < 0.05. The kinematics of the ACLD and contralateral intact knees were similar during the wide-based squat except at the low flexion angles. Therefore, we conclude the wide-based squat may be recommended for the ACLD knee by avoiding terminal extension

  6. Identification of early salt-stress responsive proteins in seedling roots of upland cotton (Gossypium hirsutum L. employing iTRAQ-based proteomic technique

    Directory of Open Access Journals (Sweden)

    Wu eLi

    2015-09-01

    Full Text Available Soil salinity is a major abiotic stress that limits plant growth and agricultural productivity. Upland cotton (Gossypium hirsutum L. is highly tolerant to salinity; however, large-scale proteomic data of cotton in response to salt-stress are still scanty. Here, an iTRAQ-based proteomic technique was employed to identify the early differentially expressed proteins (DEPs from salt-treated cotton roots. 77 up-regulated and 52 down-regulated proteins were identified. The majority of the proteins have functions related to carbohydrate and energy metabolism, transcription related, protein metabolism, cell wall and cytoskeleton metabolism, membrane and transport, signal transduction, as well as stress and defense. It is worth emphasizing that some novel salt-responsive proteins were identified, which involved in cell cytoskeleton metabolism(ARP2 and FLAs), membrane transport(TIPs and PIPs), signal transduction(LRR-RLKs)and stress responses(TLP, USP, DIR,desiccation-related protein PCC13-62. High positive correlation was evaluated between the abundance of some altered proteins (SOD, POD, GST, MDAR and MDH and their enzyme activity. The results demonstrate the iTRAQ-based proteomic technique is reliable for identifying and quantifying a large number of cotton root proteins. qRT-PCR was used to study the gene expression levels of five above-mentioned proteins, four patterns are consistent with those of induced protein. These results showed that cotton’s proteome to NaCl stress is complex, and that the comparative protein profiles of roots under salinity vs control improve the understanding of the molecular mechanisms involved in the tolerance of plants to salt stress. It provides a good starting point for further functional elucidation of these DEPs using genetic and/or other approaches, and thereby candidate genes for genetic engineering to improve crop salt tolerance.

  7. Nuclear and non-nuclear techniques for area-wide assessment of water use efficiency and ecohydrology outcomes among mixed land uses

    Science.gov (United States)

    Burgess, S. S. O.; Nguyen, M. L.

    2009-04-01

    Managing water use efficiency and ecohydrology is important for providing food, water and essential ecosystem services. Many agricultural, ecological, atmospheric and hydrological processes cannot be meaningfully managed without an area-wide or catchment-level perspective. However a vast number of factors, including mixed land uses are incorporated at such scales. There is a need for integrative, mobile and adaptable techniques to make water related measurements over large areas and mixed land uses. Nuclear techniques and analogous non-nuclear techniques may be deployed in a number of spheres within the soil-plant-atmosphere continuum (e.g. rhizosphere and above-canopy microclimate) with nuclear techniques having a distinct contribution owing to their unique ability to trace biogeochemical processes including the movement and transformation of water, nutrients and agrochemicals. 1) Soils. Isotopes can be used to trace water sources to understand groundwater dependence, rooting depth, etc. but not at all sites: early success in central USA studies has not always been repeatable in climates which produce more uniform isotopic signatures in various water sources. Soil water resources available to crops can also be studied using neutron moisture meters, but training, transport and safety issues argue for stringent management and inclusion of electrical capacitance probes for routine or automated applications. Results from capacitance probes can benefit from benchmarking against neutron probe measurements, which remain more powerful for sampling larger volumes in cases of heterogenous soils or where salinity levels are problematic. Because interpretation of soil water content in terms of plant available water also requires knowledge of soil organic matter characteristics, 13C and compound specific stable isotopes can help to identify changes in soil organic matter composition and hence water and plant nutrient availability. 2) Plants. Analysis of carbon isotope

  8. Improving the sterile sperm identification method for its implementation in the Area-wide Sterile Insect Technique Program against Ceratitis capitata (Diptera: Tephritidae) in Spain.

    Science.gov (United States)

    Juan-Blasco, M; Urbaneja, A; San Andrés, V; Castañera, P; Sabater-Muñoz, B

    2013-12-01

    The success of sterile males in area-wide sterile insect technique (aw-SIT) programs against Ceratitis capitata (Wiedemann) is currently measured by using indirect methods as the wild:sterile male ratio captured in monitoring traps. In the past decade, molecular techniques have been used to improve these methods. The development of a polymerase chain reaction-restriction fragment-length polymorphism-based method to identify the transfer of sterile sperm to wild females, the target of SIT, was considered a significant step in this direction. This method relies on identification of sperm by detecting the presence of Y chromosomes in spermathecae DNA extract complemented by the identification of the genetic origin of this sperm: Vienna-8 males or wild haplotype. However, the application of this protocol to aw-SIT programs is limited by handling time and personnel cost. The objective of this work was to obtain a high-throughput protocol to facilitate the routine measurement in a pest population of sterile sperm presence in wild females. The polymerase chain reaction-restriction fragment-length polymorphism markers previously developed were validated in Mediterranean fruit fly samples collected from various locations worldwide. A laboratory protocol previously published was modified to allow for the analysis of more samples at the same time. Preservation methods and preservation times commonly used for Mediterranean fruit fly female samples were assessed for their influence on the correct molecular detection of sterile sperm. This high-throughput methodology, as well as the results of sample management presented here, provide a robust, efficient, fast, and economical sterile sperm identification method ready to be used in all Mediterranean fruit fly SIT programs.

  9. PIGC™ - A low cost fugitive emissions and methane detection system using advanced gas filter correlation techniques for local and wide area monitoring

    Science.gov (United States)

    Lachance, R. L.; Gordley, L. L.; Marshall, B. T.; Fisher, J.; Paxton, G.; Gubeli, J. F.

    2015-12-01

    Currently there is no efficient and affordable way to monitor gas releases over small to large areas. We have demonstrated the ability to accurately measure key greenhouse and pollutant gasses with low cost solar observations using the breakthrough sensor technology called the "Pupil Imaging Gas Correlation", PIGC™, which provides size and complexity reduction while providing exceptional resolution and coverage for various gas sensing applications. It is a practical implementation of the well-known Gas Filter Correlation Radiometry (GFCR) technique used for the HALOE and MOPITT satellite instruments that were flown on successful NASA missions in the early 2000s. This strong space heritage brings performance and reliability to the ground instrument design. A methane (CH4) abundance sensitivity of 0.5% or better of ambient column with uncooled microbolometers has been demonstrated with 1 second direct solar observations. These under $10 k sensors can be deployed in precisely balanced autonomous grids to monitor the flow of chosen gasses, and infer their source locations. Measureable gases include CH4, 13CO2, N2O, NO, NH3, CO, H2S, HCN, HCl, HF, HDO and others. A single instrument operates in a dual operation mode, at no additional cost, for continuous (real-time 24/7) local area perimeter monitoring for the detection of leaks for safety & security needs, looking at an artificial light source (for example a simple 60 W light bulb placed 100 m away), while simultaneously allowing solar observation for quasi-continuous wide area total atmospheric column scanning (3-D) for environmental monitoring (fixed and mobile configurations). The second mode of operation continuously quantifies the concentration and flux of specific gases over different ground locations, determined the amount of targeted gas being released from the area or getting into the area from outside locations, allowing better tracking of plumes and identification of sources. This paper reviews the

  10. Engaging Employers?

    Science.gov (United States)

    Hillier, Yvonne

    2008-01-01

    A key factor in the successful development of workplace learning is employer engagement (Leitch, 2006; DfES, 2007). However, despite numerous approaches by government in the United Kingdom to bring together employers, providers and learners so that economic success is generated by a skilled and flexible workforce, there continue to be challenges…

  11. Industry Employment

    Science.gov (United States)

    Occupational Outlook Quarterly, 2012

    2012-01-01

    This article illustrates projected employment change by industry and industry sector over 2010-20 decade. Workers are grouped into an industry according to the type of good produced or service provided by the establishment for which they work. Industry employment projections are shown in terms of numeric change (growth or decline in the total…

  12. Performance of a Genetically Modified Strain of the Mediterranean Fruit Fly (Diptera: Tephritidae) for Area-Wide Integrated Pest Management With the Sterile Insect Technique.

    Science.gov (United States)

    Ramírez-Santos, Edwin M; Rendón, Pedro; Ruiz-Montoya, Lorena; Toledo, Jorge; Liedo, Pablo

    2016-12-23

    The genetically modified strain of Ceratitis capitata (Wiedemann) VIENNA 8 1260 has two morphological markers that exhibit fluorescence in body and sperm. To assess the feasibility of its use in area-wide integrated pest management (AW-IPM) programs using the sterile insect technique, its rearing performance and quality control profile under small, medium, and large scales was evaluated, as well as in field cages. The VIENNA 8 1260 strain had a lower yield than the control strains, VIENNA 8 with D53 inversion (VIENNA 8) and without D53 inversion (VIENNA 8 D53-). At mass-rearing scale, yield gradually increased in three generations without reaching the control strain values. The VIENNA 8 1260 strain was stable in the genetic sexing mechanism (>99.9%) and expression of fluorescence (100%). In field cages, the VIENNA 8 1260 males reduced the mating potential of wild males in the same magnitude as the VIENNA 8, when evaluated in independent cage tests. However, the relative sterility index and the strain male relative performance index of VIENNA 8 1260 males were significantly lower than those of the VIENNA 8. There were no significant differences in longevity of these strains. The potential application of the VIENNA 8 1260 in AW-IPM programs is further discussed.

  13. Agency employment

    OpenAIRE

    Tomčíková, Ilona

    2012-01-01

    - Agency Employment For my thesis topic, I have chosen "Agency Employment". It's a relatively young institute, which was incorporated into our legal system only on October 1st, 2004. I believe that Agency Employment topic can be always considered current and positive, because it allows us to flexibly react to the needs of the job market. Since the topic is very broad, the goal of this paper is not a detailed analysis of all aspects of this institute, but only a few of them that I consider to ...

  14. Employer Branding

    DEFF Research Database (Denmark)

    Frimann, Søren; Mønsted, Bolette Rye

    2012-01-01

    Employer branding er både for den private og den offentlige sektor blevet en måde, de kan imødekomme ændrede arbejdsmarkedsvilkår og organisatoriske udfordringer i en postmoderne og globaliseret verden. Den aktuelle finanskrise har skabt nye udfordringer for organisationer i deres bestræbelser på...... at tiltrække- og fastholde attraktive medarbejdere. Men hvilken betydning har det, når Grundfos siger ”Mennesket er i fokus”, og hvad siger ”mangfoldighed” om Københavns Kommune som arbejdsplads i relation til employer branding? Er der egentlig sammenhæng mellem tankerne bag employer branding og de eksternt...... kommunikerede employer brandprodukter. Eller bliver det unikke ved arbejdspladserne ersattet af buzzwords uden substans og inddragelse af ansatte og interessenter? Artiklen har til formål at vurdere disse spørgsmål på baggrund af analyser af to cases med employer branding....

  15. Employer Branding

    DEFF Research Database (Denmark)

    Frimann, Søren; Mønsted, Bolette Rye

    2012-01-01

    Employer branding er både for den private og den offentlige sektor blevet en måde, de kan imødekomme ændrede arbejdsmarkedsvilkår og organisatoriske udfordringer i en postmoderne og globaliseret verden. Den aktuelle finanskrise har skabt nye udfordringer for organisationer i deres bestræbelser på...... at tiltrække- og fastholde attraktive medarbejdere. Men hvilken betydning har det, når Grundfos siger ”Mennesket er i fokus”, og hvad siger ”mangfoldighed” om Københavns Kommune som arbejdsplads i relation til employer branding? Er der egentlig sammenhæng mellem tankerne bag employer branding og de eksternt...... kommunikerede employer brandprodukter. Eller bliver det unikke ved arbejdspladserne ersattet af buzzwords uden substans og inddragelse af ansatte og interessenter? Artiklen har til formål at vurdere disse spørgsmål på baggrund af analyser af to cases med employer branding....

  16. Ureteric Embolization for Lower Urinary Tract Fistulae: Use of Two Amplatzer Vascular Plugs and N-Butyl Cyanoacrylate Employing the 'Sandwich' Technique

    Energy Technology Data Exchange (ETDEWEB)

    Saad, Wael E. A., E-mail: ws6r@virginia.edu; Kalagher, S.; Turba, U. C.; Sabri, S. S.; Park, A.-W.; Stone, J.; Angle, J. F.; Matsumoto, A. H. [University of Virginia Health System, Department of Radiology and Medical Imaging, Division of Vascular Interventional Radiology (United States)

    2013-08-01

    PurposeThis study describes and evaluated the effectiveness of occluding distal ureters in the clinical setting of urinary vaginal (vesicovaginal or enterovesicovaginal) fistulae utilizing a new technique which combines Amplatzer vascular plugs and N-butyl cyanoacrylate.MaterialsThis is a retrospective study (January 2007-December 2010) of patients with urinary-vaginal fistulae undergoing distal ureter embolization utilizing an Amplatzer- N-butyl cyanoacrylate-Amplatzer sandwich technique. An 8-12-mm type-I or type-II Amplatzer vascular plug was delivered using the sheath and deployed in the ureter distal to the pelvic brim. Instillation of 0.8-1.5 cc of N-butyl cyanoacrylate into ureter proximal to the Amplatzer plug was performed. This was followed by another set of 8-12-mm type-I or type-II Amplatzer vascular plugs in a technique referred to as the 'sandwich technique.'ResultsFive ureters in three patients were occluded utilizing the above-described technique during the 4-year study period. Mean maximum size Amplatzer used per ureter was 10.8 mm (range, 8-12). One ureter required three Amplatzer plugs and the rest required two. Two patients (3 ureters) were clinically successful with complete resolution of symptoms in 36-48 h. The third patient (2 ureters) was partly successful and required a second Amplatzer- N-butyl cyanoacrylate sandwich technique embolization. The mean clinical follow-up was 11.3 months (range, 1.7-29.2).ConclusionsThe Amplatzer- N-butyl cyanoacrylate-Amplatzer sandwich technique for occluding the distal ureter is safe and effective with a quick (probably due to the N-butyl cyanoacrylate) and durable (probably due to the Amplatzer plugs) clinical response.

  17. Illegal employment

    Directory of Open Access Journals (Sweden)

    Jana Mervartová

    2013-01-01

    Full Text Available Since 2007 Labour Code contains the definition of dependent work, which can be carried out only in labour-law relations. The Amendment to Labour Code from 2012 makes the definition more precise, when it stipulates essential elements of dependent work and designates the others as conditions, under which dependent work should be carried out. The Amendment to Employment Act changes the definition of illegal work. Illegal work is a performance of dependent work by natural person except for labour-law relation, or if natural person – foreigner carries out work in conflict with issued permission to employment or without this permission. Since 2012 sanctions for illegal work were increased. Labour inspection is entitled to impose sanctions, in case of foreigners it is Customs Office. For control purposes employer is obliged to have copies of documents at the workplace proving the existence of labour-law relation. Goal of controls and high fines is to limit illegal employment of citizens of Czech Republic and foreigners as well. Illegal work has unfavourable economic impact on state budget. It comes to extensive tax evasions and also to evasions within health insurance and social security. If a concluded commercial-law relation meets the attributes of dependent work, then it stands for a concealed legal relationship. Tax Office can subsequently assess an income tax to businessman. Labour-law relationship enjoys a higher legal protection than commercial-law relationship; nonetheless it is not suitable to limit liberty of contract in cases when it is not unambiguously a dependent activity.

  18. The stucco decorations from St. Lorenzo in Laino (Como, Italy): The materials and the techniques employed by the 'Magistri Comacini'

    Energy Technology Data Exchange (ETDEWEB)

    Rampazzi, Laura [Dipartimento di Scienze Chimiche e Ambientali, Universita degli Studi dell' Insubria, via Valleggio 11, 22100 Como (Italy)], E-mail: laura.rampazzi@uninsubria.it; Rizzo, Biagio [Dipartimento di Scienze Chimiche e Ambientali, Universita degli Studi dell' Insubria, via Valleggio 11, 22100 Como (Italy); Colombo, Chiara; Conti, Claudia; Realini, Marco [Istituto per la Conservazione e la Valorizzazione dei Beni Culturali, Unita di Milano ' Gino Bozza' , Area della Ricerca Milano 3 Bicocca, via Cozzi 53, 20125 Milano (Italy); Bartolucci, Ugo; Colombini, Maria Perla [Dipartimento di Chimica e Chimica Industriale, Universita degli Studi di Pisa, Universita di Pisa, Via Risorgimento 35, 56126 Pisa (Italy); Spiriti, Andrea; Facchin, Laura [Dipartimento di Informatica e Comunicazione, Universita degli Studi dell' Insubria, Via Mazzini 5, 21100 Varese (Italy)

    2008-12-07

    The paper reports a cross-cutting and systematic approach to the analytical study of Baroque stucco decorations by Italian artists known as 'Magistri Comacini'. Samples from the Church of St. Lorenzo in Laino (Como, Italy) were analysed using chemical and mineralogical techniques and the results interpreted with the help of art historians in order to enlighten the artistic techniques. The characterisation of the binder, aggregate and organic fractions was carried out through optical microscopy, scanning electron microscopy with microprobe, X-ray powder diffraction, Fourier transform infrared spectroscopy, gas chromatography-mass spectrometry and laser ablation mass spectrometry equipped with plasma source spectrometry. The results on major, minor and trace components ascertained various recipes. In particular, the investigation of the finishing layers corroborated hypotheses of attribution and chronology and stressed the different skills of the artists working in the building, shedding a light on details of the decoration technique.

  19. Improvement of the supply chain for the sugar cane exportation process employing discrete events simulation techniques - doi: 10.4025/actascitechnol.v35i4.17468

    Directory of Open Access Journals (Sweden)

    Maria Alejandra Guerrero Hernandez

    2013-10-01

    Full Text Available Current paper proposes a reduction on all logistic costs involved in the sugar cane exportation process for an important medium-size cargo harbor in South America. The strategy consisted in studying and improving the efficiency of the logistics transportation flow of merchandise between the sugar cane mills and the cargo ports by employing discrete events simulation as a methodology and the ProModel software as a simulation platform. The simulated scenarios show 89% reductions in additional costs for inventory management; 50% of the resources used for loading the containers; and an 11.4% increment in the efficiency of operations. In addition, the new planning strategy was also evaluated with either a positive or negative variation of the demand. It should be underscored that the improved scenarios (out of those simulated do not involve investments in facilities or in machinery purchasing.  

  20. Novel Techniques and Their Wide Applications to Health Foods, Medical and Agricultural Biotechnology in Relation to Policy Making on Genetically Modified Crops and Foods

    CERN Document Server

    Baianu, I C; Lozano, P; Lin, H C

    2004-01-01

    Selected applications of novel techniques in Agricultural Biotechnology, Health Food formulations and Medical Biotechnology are being reviewed with the aim of unraveling future developments and policy changes that are likely to open new markets for Biotechnology and prevent the shrinking or closing of existing ones. Amongst the selected novel techniques with applications in both Agricultural and Medical Biotechnology are: immobilized bacterial cells and enzymes, microencapsulation and liposome production, genetic manipulation of microorganisms, development of novel vaccines from plants, epigenomics of mammalian cells and organisms, and biocomputational tools for molecular modeling related to disease and Bioinformatics. Both fundamental and applied aspects of the emerging new techniques are being discussed in relation to their anticipated, marked impact on future markets and present policy changes that are needed for success in either Agricultural or Medical Biotechnology. The novel techniques are illustrated ...

  1. Development of steady-state electrical-heating fluorescence-sensing (SEF) technique for thermal characterization of one dimensional (1D) structures by employing graphene quantum dots (GQDs) as temperature sensors

    Science.gov (United States)

    Wan, Xiang; Li, Changzheng; Yue, Yanan; Xie, Danmei; Xue, Meixin; Hu, Niansu

    2016-11-01

    A fluorescence signal has been demonstrated as an effective implement for micro/nanoscale temperature measurement which can be realized by either direct fluorescence excitation from materials or by employing nanoparticles as sensors. In this work, a steady-state electrical-heating fluorescence-sensing (SEF) technique is developed for the thermal characterization of one-dimensional (1D) materials. In this method, the sample is suspended between two electrodes and applied with steady-state Joule heating. The temperature response of the sample is monitored by collecting a simultaneous fluorescence signal from the sample itself or nanoparticles uniformly attached on it. According to the 1D heat conduction model, a linear temperature dependence of heating powers is obtained, thus the thermal conductivity of the sample can be readily determined. In this work, a standard platinum wire is selected to measure its thermal conductivity to validate this technique. Graphene quantum dots (GQDs) are employed as the fluorescence agent for temperature sensing. Parallel measurement by using the transient electro-thermal (TET) technique demonstrates that a small dose of GQDs has negligible influence on the intrinsic thermal property of platinum wire. This SEF technique can be applied in two ways: for samples with a fluorescence excitation capability, this method can be implemented directly; for others with weak or no fluorescence excitation, a very small portion of nanoparticles with excellent fluorescence excitation can be used for temperature probing and thermophysical property measurement.

  2. Genome-wide association mapping in winter barley for grain yield and culm cell wall polymer content using the high-throughput CoMPP technique

    DEFF Research Database (Denmark)

    Bellucci, Andrea; Tondelli, Alessandro; Fangel, Jonatan Ulrik

    2017-01-01

    -wide association study (GWAS). Marker-trait associations (MTA) were analyzed for grain yield and cell wall determination by LM6 and JIM13 as these were the traits showing significant correlations between the years. A single QTL for GYLD containing three MTAs was found on chromosome 3H located close to the Hv-eIF4E...

  3. An Inter-Comparison of Techniques for Determining Velocities of Maritime Arctic Glaciers, Svalbard, Using Radarsat-2 Wide Fine Mode Data

    Directory of Open Access Journals (Sweden)

    Thomas Schellenberger

    2016-09-01

    Full Text Available Glacier dynamics play an important role in the mass balance of many glaciers, ice caps and ice sheets. In this study we exploit Radarsat-2 (RS-2 Wide Fine (WF data to determine the surface speed of Svalbard glaciers in the winters of 2012/2013 and 2013/2014 using Synthetic Aperture RADAR (SAR offset and speckle tracking. The RS-2 WF mode combines the advantages of the large spatial coverage of the Wide mode (150 × 150 km and the high pixel resolution (9 m of the Fine mode and thus has a major potential for glacier velocity monitoring from space through offset and speckle tracking. Faster flowing glaciers (1.95 m·d−1–2.55 m·d−1 that are studied in detail are Nathorstbreen, Kronebreen, Kongsbreen and Monacobreen. Using our Radarsat-2 WF dataset, we compare the performance of two SAR tracking algorithms, namely the GAMMA Remote Sensing Software and a custom written MATLAB script (GRAY method that has primarily been used in the Canadian Arctic. Both algorithms provide comparable results, especially for the faster flowing glaciers and the termini of slower tidewater glaciers. A comparison of the WF data to RS-2 Ultrafine and Wide mode data reveals the superiority of RS-2 WF data over the Wide mode data.

  4. Temporal and spatial distribution of roots and competition for nitrogen in pea-barley intercrops - a field study employing P-32 technique

    DEFF Research Database (Denmark)

    Hauggaard-Nielsen, H.; Ambus, P.; Jensen, E.S.

    2001-01-01

    Root system dynamics, productivity and N use were studied in inter- and sole crops of field pea (Pisum sativum L.) and spring barley (Hordeum vulgare L.) on a temperate sandy loam. A P-32 tracer placed at a depth of 12.5, 37.5, 62.5 or 87.5 cm was employed to determine root system dynamics...... by sampling crop leaves at 0, 15, 30 and 45 cm lateral distance. N-15 addition was used to estimate N-2 fixation by pea, using sole cropped barley as reference crop. The Land Equivalent Ratio (LER), which is defined as the relative land area under sole crops that is required to produce the yields achieved...... in intercropping, were used to compare the crop growth in intercrops relative to the respective sole crops. The P-32 appearance in leaves revealed that the barley root system grows faster than that of pea. P uptake by the barley root system during early growth stages was approximately 10 days ahead...

  5. Study of USGS/NASA land use classification system. [compatibility of land use classification system with computer processing techniques employed for land use mapping from ERTS data

    Science.gov (United States)

    Spann, G. W.; Faust, N. L.

    1974-01-01

    It is known from several previous investigations that many categories of land-use can be mapped via computer processing of Earth Resources Technology Satellite data. The results are presented of one such experiment using the USGS/NASA land-use classification system. Douglas County, Georgia, was chosen as the test site for this project. It was chosen primarily because of its recent rapid growth and future growth potential. Results of the investigation indicate an overall land-use mapping accuracy of 67% with higher accuracies in rural areas and lower accuracies in urban areas. It is estimated, however, that 95% of the State of Georgia could be mapped by these techniques with an accuracy of 80% to 90%.

  6. Modification of Inert Gas Condensation Technique to Achieve Wide Area Distribution of Nanoparticles and Synthesis and Characterization of Nanoparticles for Semiconductor Applications

    Science.gov (United States)

    Pandya, Sneha G.

    The aim of this dissertation is to develop a versatile experimental technique for synthesis of nanoparticles (NPs), which can be used to deposit NPs in various patterns for semiconductor device applications. In addition, the dissertation also aims at the synthesis and characterization of semiconductor NPs capable of nano-scale temperature measurement and infrared sensing. (Abstract shortened by ProQuest.).

  7. A digital calibration technique for an ultra high-speed wide-bandwidth folding and interpolating analog-to-digital converter in 0.18-μm CMOS technology*

    Institute of Scientific and Technical Information of China (English)

    Yu Jinshan; Zhang Ruitao; Zhang Zhengping; Wang Yonglu; Zhu Can; Zhang Lei; Yu Zhou; Han Yong

    2011-01-01

    A digital calibration technique for an ultra high-speed folding and interpolating analog-to-digital converter in 0.18-μm CMOS technology is presented. The similar digital calibration techniques are taken for high 3-bit flash converter and low 5-bit folding and interpolating converter, which are based on well-designed calibration reference, calibration DAC and comparators. The spice simulation and the measured results show the ADC produces 5.9 ENOB with calibration disabled and 7.2 ENOB with calibration enabled for high-frequency wide-bandwidth analog input.

  8. ENTREPRENEURSHIP DEVELOPMENT AND EMPLOYMENT GENERATION IN NIGERIA: A STUDY OF THE NATIONAL DIRECTORATE OF EMPLOYMENT

    Directory of Open Access Journals (Sweden)

    John N. N. Ugoani

    2015-09-01

    Full Text Available The issues of entrepreneurship development and employment generation continue to receive high attention because of their impact on unemployment and poverty reduction in many parts of the world. The National Directorate of Employment was introduced by government in its efforts toward employment generation. In furtherance of attempts toward tackling unemployment, addressing issues of poverty and vulnerability and promoting inclusive finance at the grass-root levels, the Directorate has a Special Micro Empowerment Scheme which is aimed at promoting social inclusion and job creation. Micro, Small and Medium enterprises such as  water/beverage sales, shoemaking, shining, among other vocations account for about 99.6 percent of registered businesses in Nigeria by which about 63 percent of the labour force earn a living. The Directorate has created over 2.076 million employments since it was established. The NDEs one million job creation programme remains a wonderful idea in employment generation. The survey research method was used for the study. Surveys refer to an investigation of events that exist at the time of the research and connected with some problem situations that is felt over a wide area. Data analysis was done through Pearson’s techniques. The result showed a very strong positive correlation between entrepreneurship development and employment generation. This is the aim of the study.

  9. Predator Presence and Vegetation Density Affect Capture Rates and Detectability of Litoria aurea Tadpoles: Wide-Ranging Implications for a Common Survey Technique.

    Science.gov (United States)

    Sanders, Madeleine R; Clulow, Simon; Bower, Deborah S; Clulow, John; Mahony, Michael J

    2015-01-01

    Trapping is a common sampling technique used to estimate fundamental population metrics of animal species such as abundance, survival and distribution. However, capture success for any trapping method can be heavily influenced by individuals' behavioural plasticity, which in turn affects the accuracy of any population estimates derived from the data. Funnel trapping is one of the most common methods for sampling aquatic vertebrates, although, apart from fish studies, almost nothing is known about the effects of behavioural plasticity on trapping success. We used a full factorial experiment to investigate the effects that two common environmental parameters (predator presence and vegetation density) have on the trapping success of tadpoles. We estimated that the odds of tadpoles being captured in traps was 4.3 times higher when predators were absent compared to present and 2.1 times higher when vegetation density was high compared to low, using odds ratios based on fitted model means. The odds of tadpoles being detected in traps were also 2.9 times higher in predator-free environments. These results indicate that common environmental factors can trigger behavioural plasticity in tadpoles that biases trapping success. We issue a warning to researchers and surveyors that trapping biases may be commonplace when conducting surveys such as these, and urge caution in interpreting data without consideration of important environmental factors present in the study system. Left unconsidered, trapping biases in capture success have the potential to lead to incorrect interpretations of data sets, and misdirection of limited resources for managing species.

  10. Evaluating Employability Skills: Employer and Student Perceptions

    Science.gov (United States)

    Saunders, Venetia; Zuzel, Katherine

    2010-01-01

    Graduate employability is a key issue for Higher Education. In this two-part study student employability skills have been evaluated from the perspective of sandwich students and graduates in biomolecular science, and their employers. A strong correlation was found between employer and sandwich student/graduate perceptions of the relative…

  11. Evaluating Employability Skills: Employer and Student Perceptions

    Science.gov (United States)

    Saunders, Venetia; Zuzel, Katherine

    2010-01-01

    Graduate employability is a key issue for Higher Education. In this two-part study student employability skills have been evaluated from the perspective of sandwich students and graduates in biomolecular science, and their employers. A strong correlation was found between employer and sandwich student/graduate perceptions of the relative…

  12. Employer-sponsored pension plans

    Directory of Open Access Journals (Sweden)

    Rakonjac-Antić Tatjana N.

    2004-01-01

    Full Text Available Apart from pension plans within social insurance, in developed pension systems there are also available to individuals schemes which may to a large extent ensure a significant part of their total pension. Among them are the following: employer-sponsored pension plans or individual pension plans. The most widely used employer-sponsored pension plan in the USA is 401(k, in which both the employer and the employee contribute to the financing of the pension. These contributions as well as the return to their investment have a preferential tax treatment, i.e. do not enter a tax base. The funds are taxed only when drawn from the account in the form of a pension. This paper aims to present the functioning of 401(k pension plan as the most widely used employer sponsored pension plan in the USA, which is likely, in a modified form, to have an important place within our future reformed pension insurance system.

  13. Analysis of the chemical elements behavior in leaves infected with fumagina employing X-ray fluorescence technique; Analise do comportamento de elementos quimicos em folhas infectadas com fumagina atraves da tecnica de fluorescencia de raios-X

    Energy Technology Data Exchange (ETDEWEB)

    Blonski, Maria Selia

    2002-02-01

    Fumagina is produced by the Capnodium fungi, a mushroom from Dothideales order, that lives associated with the yellow aphid (Monelliopsis pecanis), excreting a heavy load of a sugared substance that provides the sooty fungus development, covering, in some cases the totality, of leaves, fruits and branches surfaces. One of the big problems caused by this disease is the physic photosynthesis stuckness, reducing in 98% the active photosynthesis radiation and in 70% the net photosynthesis. This photosynthesis reduction affects the plants carbohydrate reservoirs, resulting in reduced and bad qualified crops. It was employed the Energy Dispersion X-Ray Fluorescence Technique (EDXRF) to study the fumagina disease. The measurements were realized with infected and healthy leaves of citric plants (orange and lemon trees), collected at the Farm School of the State University of Londrina, and also leaves of icsora plant from Piracicaba-SP. Through this technique it was observed a metabolic disorder related to Fe and Ca elements. By comparing the EDXRF spectra of the healthy plant leaves with the infected ones, it was verified that the concentration of Ca is higher than the concentration Fe in leaves of healthy plants, while for the leaves of plants infected with fumagina, it was observed a higher concentration of Fe. Employing EDXRF and the emission/transmission method for the matrix effect correction, samples of the citric plants were also analysed in pellet. The elements K, Ca, Ti, Mn , Fe, Cu and Zn were quantified. It was verified a higher Fe concentration in fumagina samples compared to the samples without fumagina. For all the elements of interest the minimum level of detection found was at the order of {mu}g g{sup -1}. (author)

  14. 大学生择业指导中咨询技术的运用*--基于一则案例的分析%Application of Advisory Techniques in College Students'Employment Guidance

    Institute of Scientific and Technical Information of China (English)

    宋红丽

    2014-01-01

    对毕业生进行深度择业指导需要灵活运用咨询技术和职业生涯规划的相关理论和方法。本案例就一名大学生在辅导员的帮助下对求职过程中遇到的系列困扰进行深入分析,最终做出了理性选择。通过职业指导咨询技术运用帮助求职者系统全面地深入思考,做出科学理性的决策。%In -depth employment guidance for graduating college students requires flexible advisory techniques and theories and methods relevant to career planning .T his paper looks into the confusions a student experienced when he was seeking a job and tells how the advisor helped the student to make a rational choice . T he paper urges advisors to use advisory techniques to help job hunters to think deeply ,roundly and systematically so they can make scientific and rational decisions .

  15. Schizophrenia and employment - a review.

    Science.gov (United States)

    Marwaha, Steven; Johnson, Sonia

    2004-05-01

    Little is known about the extent to which work contributes to the recovery of people with schizophrenia. There is increasing interest in the subject because of new service models and the economic cost of unemployment in people with severe mental illness. A literature search was carried out with the aim of investigating: a). employment rates in schizophrenia and first-episode psychosis and the extent to which they have changed over time; b). the barriers to work; c). the factors associated with being employed among people with schizophrenia; and d). whether employment influences other outcomes in schizophrenia. There are wide variations in reported employment rates in schizophrenia. Most recent European studies report rates between 10 % and 20%, while the rate in the US is less clear. There is a higher level of employment among first-episode patients. The employment rate in schizophrenia appears to have declined over the last 50 years in the UK. Barriers to getting employment include stigma,discrimination, fear of loss of benefits and a lack of appropriate professional help. The most consistent predictor of employment is previous work history. Working is correlated with positive outcomes in social functioning, symptom levels, quality of life and self esteem, but a clear causal relationship has not been established. Very low employment rates are not intrinsic to schizophrenia, but appear to reflect an interplay between the social and economic pressures that patients face, the labour market and psychological and social barriers to working.

  16. Employer Engagement in Education: Literature Review

    Science.gov (United States)

    Mann, Anthony; Dawkins, James

    2014-01-01

    The subject of this paper is employer engagement in education. In this, the authors consider the range of different ways that employers can support the learning and progression of young people in British schools. The paper draws on a wide range of source material to ask: What are the typical benefits of different types of employer engagement? Do…

  17. Proteome-wide dataset generated by iTRAQ-3DLCMS/MS technique for studying the role of FerB protein in oxidative stress in Paracoccus denitrificans

    Directory of Open Access Journals (Sweden)

    Vendula Pernikářová

    2015-09-01

    Full Text Available 3DLC protein- and peptide-fractionation technique combined with iTRAQ-peptide labeling and Orbitrap mass spectrometry was employed to quantitate Paracoccus dentirificans total proteome with maximal coverage. This resulted in identification of 24,948 peptides representing 2627 proteins (FDR<0.01 in P. dentirificans wild type and ferB mutant strains grown in the presence or absence of methyl viologen as an oxidative stressor. The data were generated for assessment of FerB protein role in oxidative stress as published by Pernikářová et al.; proteomic responses to a methyl viologen-induced oxidative stress in the wild type and FerB mutant strains of P. denitrificans, J. Proteomics 2015;125:68–75. Dataset is supplied in the article.

  18. Employment of kernel methods on wind turbine power performance assessment

    DEFF Research Database (Denmark)

    Skrimpas, Georgios Alexandros; Sweeney, Christian Walsted; Marhadi, Kun S.

    2015-01-01

    A power performance assessment technique is developed for the detection of power production discrepancies in wind turbines. The method employs a widely used nonparametric pattern recognition technique, the kernel methods. The evaluation is based on the trending of an extracted feature from...... the kernel matrix, called similarity index, which is introduced by the authors for the first time. The operation of the turbine and consequently the computation of the similarity indexes is classified into five power bins offering better resolution and thus more consistent root cause analysis. The accurate...

  19. Emerging optical nanoscopy techniques

    Directory of Open Access Journals (Sweden)

    Montgomery PC

    2015-09-01

    Full Text Available Paul C Montgomery, Audrey Leong-Hoi Laboratoire des Sciences de l'Ingénieur, de l'Informatique et de l'Imagerie (ICube, Unistra-CNRS, Strasbourg, France Abstract: To face the challenges of modern health care, new imaging techniques with subcellular resolution or detection over wide fields are required. Far field optical nanoscopy presents many new solutions, providing high resolution or detection at high speed. We present a new classification scheme to help appreciate the growing number of optical nanoscopy techniques. We underline an important distinction between superresolution techniques that provide improved resolving power and nanodetection techniques for characterizing unresolved nanostructures. Some of the emerging techniques within these two categories are highlighted with applications in biophysics and medicine. Recent techniques employing wider angle imaging by digital holography and scattering lens microscopy allow superresolution to be achieved for subcellular and even in vivo, imaging without labeling. Nanodetection techniques are divided into four subcategories using contrast, phase, deconvolution, and nanomarkers. Contrast enhancement is illustrated by means of a polarized light-based technique and with strobed phase-contrast microscopy to reveal nanostructures. Very high sensitivity phase measurement using interference microscopy is shown to provide nanometric surface roughness measurement or to reveal internal nanometric structures. Finally, the use of nanomarkers is illustrated with stochastic fluorescence microscopy for mapping intracellular structures. We also present some of the future perspectives of optical nanoscopy. Keywords: microscopy, imaging, superresolution, nanodetection, biophysics, medical imaging

  20. Emerging optical nanoscopy techniques

    Science.gov (United States)

    Montgomery, Paul C; Leong-Hoi, Audrey

    2015-01-01

    To face the challenges of modern health care, new imaging techniques with subcellular resolution or detection over wide fields are required. Far field optical nanoscopy presents many new solutions, providing high resolution or detection at high speed. We present a new classification scheme to help appreciate the growing number of optical nanoscopy techniques. We underline an important distinction between superresolution techniques that provide improved resolving power and nanodetection techniques for characterizing unresolved nanostructures. Some of the emerging techniques within these two categories are highlighted with applications in biophysics and medicine. Recent techniques employing wider angle imaging by digital holography and scattering lens microscopy allow superresolution to be achieved for subcellular and even in vivo, imaging without labeling. Nanodetection techniques are divided into four subcategories using contrast, phase, deconvolution, and nanomarkers. Contrast enhancement is illustrated by means of a polarized light-based technique and with strobed phase-contrast microscopy to reveal nanostructures. Very high sensitivity phase measurement using interference microscopy is shown to provide nanometric surface roughness measurement or to reveal internal nanometric structures. Finally, the use of nanomarkers is illustrated with stochastic fluorescence microscopy for mapping intracellular structures. We also present some of the future perspectives of optical nanoscopy. PMID:26491270

  1. Comparative research on women's employment.

    NARCIS (Netherlands)

    Lippe, T. van der; Dijk, L. van

    2002-01-01

    Women's employment has been widely studied in both Western countries and Eastern Europe. In this article, the most frequently used measurements and descriptions of women's paid work are given, namely, participation rate, number of hours worked, gender segregation, and the gender gap in earnings. Nex

  2. Employer's investments in hospital workers' employability and employment opportunities

    NARCIS (Netherlands)

    van Harten, E.J.; Knies, E.; Leisink, P.L.M.

    2016-01-01

    Purpose – The purpose of this paper is to examine the relationship between employer’s investments (through job characteristics and managerial support) and employees’ employment opportunities, with employability, conceptualized as perceived up-to-date expertise and willingness to change, as a mediati

  3. COINING: AN ANCIENT TREATMENT WIDELY PRACTICED AMONG ASIANS

    Directory of Open Access Journals (Sweden)

    TAN AK

    2011-01-01

    Full Text Available Coining is a technique used in treating many illnesses since ancient times. It is a form of dermabrasion therapy still widely practicedin China and South East Asia. This ancient treatment method is employed to rid the body of “heatiness” or “negative energies”.Coining is associated with serious complications, and has been confused with child abuse by physicians unfamiliar to Asian cultures. Despite the availability of more simple and effective treatment for fever, coining is still widely practiced among Asians.

  4. Effects of spaceflight in the adductor longus muscle of rats flown in the Soviet Biosatellite COSMOS 2044. A study employing neural cell adhesion molecule (N-CAM) immunocytochemistry and conventional morphological techniques (light and electron microscopy)

    Science.gov (United States)

    D'Amelio, F.; Daunton, N. G.

    1992-01-01

    The effects of spaceflight upon the "slow" muscle adductor longus were examined in rats flown in the Soviet Biosatellite COSMOS 2044. The techniques employed included standard methods for light microscopy, neural cell adhesion molecule (N-CAM) immunocytochemistry and electron microscopy. Light microscopic observations revealed myofiber atrophy and segmental necrosis accompanied by cellular infiltrates composed of macrophages, leukocytes and mononuclear cells. Neural cell adhesion molecule immunoreactivity (N-CAM-IR) was seen on the myofiber surface and in regenerating myofibers. Ultrastructural alterations included Z band streaming, disorganization of myofibrillar architecture, sarcoplasmic degradation, extensive segmental necrosis with apparent preservation of the basement membrane, degenerative phenomena of the capillary endothelium and cellular invasion of necrotic areas. Regenerating myofibers were identified by the presence of increased amounts of ribosomal aggregates and chains of polyribosomes associated with myofilaments. The principal electron microscopic changes of the neuromuscular junctions showed axon terminals with a decrease or absence of synaptic vesicles replaced by microtubules and neurofilaments, degeneration of axon terminals, vacant axonal spaces and changes suggestive of axonal sprouting. The present observations suggest that alterations such as myofibrillar disruption and necrosis, muscle regeneration and denervation and synaptic remodeling at the level of the neuromuscular junction may take place during spaceflight.

  5. Acoustic bandpass filters employing shaped resonators

    Science.gov (United States)

    Červenka, M.; Bednařík, M.

    2016-11-01

    This work deals with acoustic bandpass filters realized by shaped waveguide-elements inserted between two parts of an acoustic transmission line with generally different characteristic impedance. It is shown that the formation of a wide passband is connected with the eigenfrequency spectrum of the filter element which acts as an acoustic resonator and that the required filter shape substantially depends on whether the filter characteristic impedance is higher or lower than the characteristic impedance of the waveguide. It is further shown that this class of filters can be realized even without the need of different characteristic impedance. A heuristic technique is proposed to design filter shapes with required transmission properties; it is employed for optimization of low-frequency bandpass filters as well as for design of bandpass filters with wide passband surrounded by wide stopbands as it is typical for phononic crystals, however, in this case the arrangement is much simpler as it consists of only one simple-shaped homogeneous element.

  6. Modified Sandwich-graft Technique Employing Aorfix and Viabahn Stent-grafts to Preserve Hypogastric Flow in Cases of Complex Aortoiliac and Isolated Common Iliac Artery Aneurysms Including the Internal Iliac Artery Ostium.

    Science.gov (United States)

    Lim, C S; Naji, Y; Hussain, S T; Pleban, E; Wiszniewski, A; Onida, S; Mosquera Arochena, N J; Szopinski, P

    2016-03-01

    The aim was to assess the early and mid-term safety and clinical outcomes of a modified sandwich-graft technique (MSGT) that employed the Aorfix and Viabahn stent-grafts to preserve hypogastric flow in cases of complex aortoiliac and isolated common iliac artery (CIA) aneurysms including internal iliac artery (IIA) ostium who were not suitable for an iliac branch device (IBD). A review of prospective collected data of all consecutive cases of treatment of complex aortoiliac or isolated CIA aneurysms including IIA ostium using the MSGT to preserve the hypogastric flow in three European centres between April 1, 2010, and December 31, 2013, was performed. All patients included were unfit for open repair and not suitable for an IBD. During the study period, 21 patients met the study criteria and had 25 MSGTs. The mean follow-up duration was 17.2 months. The technical success rate was 100%, with no perioperative mortality and stent-graft or MSGT-treated IIA occlusions. There were two cases with Type Ib endoleaks and one Type III endoleaks intraoperatively that were successfully managed. There was also no reported early and late pelvic ischaemia. The primary patency rate was 90.5%, and two cases of MGST treated IIA occlusions with no reported symptoms of pelvic ischaemia during follow-up. MSGT was a safe and feasible strategy to preserve hypogastric flow in cases of complex aortoiliac and isolated CIA aneurysms including IIA ostium and who were not suitable for IBD, with encouraging early and mid-term outcomes. Copyright © 2015 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved.

  7. Monopoly, employment and wages

    OpenAIRE

    2002-01-01

    This paper shows that monopoly in the capital equipment market results in higher productivity and wages but lower employment in comparison with the benchmark of competition. The combined effect on workers' welfare is negative, for expected earnings (defined as the product of the probability of employment and the wage earned when employed) are lowered. Indeed, low skill workers suffer relatively greater declines in employment and expected earnings. Furthermore, the employment and expected earn...

  8. A wide-band measurement method for transmission coefficients based on pulse compression technique%基于脉冲压缩技术的宽带透射系数测量方法

    Institute of Scientific and Technical Information of China (English)

    于盛齐; 黄益旺; 吴琼

    2013-01-01

    Transmission coefficient is one of the most significant parameters of underwater acoustic materials. In order to measure a transmission coefficient in a tank, a method based on pulse compression technique was proposed. With it, a directive wave was extracted from a compressed signal. The method could overcome unavoidable multi-path disturbance in tests, and easily obtain transmission coefficients for all the frequencies in the measured frequency band simultaneously, i. e. , a wide-band measurement was realized. This method was verified through comparison between the results of narrow and wide-band measurements of a glass box, they were conducted in the frequency range of 20 ~60 kHz in a tank.%透射系数是水声材料的一项重要声学参数,为在水池中对水声材料的透射系数进行测量,提出基于脉冲压缩技术的测量方法,对接收信号进行压缩提取直达波.该方法不仅能克服实验过程中经常遇到的多途干扰,且测量过程简单,可同时获得测量频带内所有频点的透射系数,实现对透射系数的宽带测量.在水池环境下,通过对20 ~60 kHz频率范围内玻璃缸的窄带测量与宽带测量结果比较,验证该方法的有效性.

  9. Employment and winter construction

    DEFF Research Database (Denmark)

    Hansen, Ernst Jan de Place; Larsen, Jacob Norvig

    2011-01-01

    possibilities exist for reducing seasonal variation in employment? In addition to a literature review related to winter construction, European and national employment and meteorological data were studied. Finally, ministerial acts, ministerial orders or other public policy documents related to winter...

  10. Graduate Identity and Employability

    Science.gov (United States)

    Hinchliffe, Geoffrey William; Jolly, Adrienne

    2011-01-01

    This paper develops the concept of graduate identity as a way of deepening the understanding of graduate employability. It does this through presenting research in which over 100 employers in East Anglia were asked to record their perceptions of graduates in respect of their employability. The findings suggest a composite and complex graduate…

  11. Institutionalized Employer Collective Action

    DEFF Research Database (Denmark)

    Ibsen, Christian Lyhne; Navrbjerg, Steen Erik

    2016-01-01

    Recent studies show that employer associations continue to exist in new ways despite internationalisation of the economy, liberalisation of markets and the decline of trade unions. This paradox raises two questions regarding EOs in today’s labour markets: Which employers join employer association...

  12. Application of double microcatheter technique in the treatment of intracranial wide necked aneu-rysm%应用双微导管技术治疗颅内宽颈动脉瘤

    Institute of Scientific and Technical Information of China (English)

    张国良; 李双萍; 李强; 张文燕

    2015-01-01

    目的:分析应用双微导管技术治疗颅内宽颈动脉瘤疗效、复发及并发症。方法回顾性分析13例采用双微导管技术栓塞破裂的宽颈动脉瘤患者的临床资料,均随访3年以上。均采用动脉瘤栓塞程度的判断标准及格拉斯哥评分(GCS)进行评估,并总结了长期疗效、复发及并发症情况。结果经长期随访,在急性期应用双微导管技术栓塞破裂动脉瘤,复查全脑血管造影(DSA)示动脉瘤瘤腔闭塞100%者9例(69.2%),闭塞95%以上者2例(15.3%),闭塞90%者1例(7.69%),栓塞小于80%者1例(7.69%)。格拉斯哥预后评分(GOS)5分9例(69.23%),4分3例(23.08),3分1例(7.69%)。结论对于常规方法治疗宽颈动脉困难或者失败的病例,尝试应用双微导管技术栓塞,是一种有效的治疗方法。%Objective To analyze the dual micro- catheter treatment of wide- necked intracranial aneurysm, the palindromia and the complication. Methods We use retrospective analysis to study 13 clinical materials of the patients of wide-necked aneurysm, follow up more than 3 years. In the meanwhile,we adopt the criterion of embolization degree and estimate the Glasgow Rating, combined the situation of long- term curative effect, the palindromia and the complication. Result We come to a conclusion about the review of DSA aneurysms lumen occlusion with long-term fl.up, applying of dual the microcatheter ruptured aneurysms embolization technique in the emergency period: 9 cases of 100% (69.2%) of occlusion, 2 cases of over 90% (15.3%) of occlusion, 1 case of 90% of occlusion (7.69%) and 1 case of below 80% of embolism. Finally, there are 9 cases of 5 points (69.23%), 3 cases of 4 points (23.8%) and a case of 3 points (7.69%), according to the final grade of Glasgow Rating. Conclusion It’ s an effective method to use the dual microcatheter ruptured aneurysms embolization technique applying to the difficult cases or aborted cases, which are using the

  13. Information Literacy and Employability

    OpenAIRE

    O'Keeffe, Colin

    2016-01-01

    Information Literacy (IL) and its relationship to third level graduates’ employability has gained more attention in recent years. This article examines how IL has evolved from skills initially associated with academic libraries into a key workplace skill set of the knowledge economy. It outlines the challenges interviewees encounter when selling IL to employers, how IL can be utilised when preparing for upcoming interviews and suggests a distinction between workplace IL and employability IL. ...

  14. General Outside Employment

    Data.gov (United States)

    Montgomery County of Maryland — This dataset contains all outside employment requests held by employees of Montgomery County (excluding uniformed police officer) approved by the Ethics Commission...

  15. Supported Employment in Spain.

    Science.gov (United States)

    Verdugo, Miguel Angel; Borja, F.; de Urries, Jordan; Bellver, Fernando; Martinez, Salvador

    1998-01-01

    Supported employment is growing in Spain, assisted by models from other countries and national legislation. The Spanish Association of Supported Employment is providing a framework for program development. The field must deal with the lack of systematic evaluation and with funding problems. (SK)

  16. Employment Challenges in Kenya

    African Journals Online (AJOL)

    Dr Kazungu

    that improving the productivity of the informal sector with a well balanced mix of ... The agreements aimed at increasing employment levels by at least ... promotion and improvement in labour market information systems. .... Other wage employment dynamics in Kenya reveal inequities in access to ..... core policy priority.

  17. Listening to Employers

    Science.gov (United States)

    Machalski, Jan; Riley, Alison; Aubrey, Karl

    2009-01-01

    Various government initiatives have highlighted the importance of employer engagement in schools, further education and higher education. However, speaking as a team of lecturers in HE the authors have found that there is a tension between the perceptions of government and those of employers. Clearly, it would be a good thing if, particularly in…

  18. Investor Sentiment and Employment

    NARCIS (Netherlands)

    M. Montone (Maurizio); R.C.J. Zwinkels (Remco)

    2015-01-01

    markdownabstract__Abstract__ We find that investor sentiment should affect a firm's employment policy in a world with moral hazard and noise traders. Consistent with the model's predictions, we show that higher sentiment among US investors leads to: (1) higher employment growth worldwide; (2) lower

  19. Maine's Employability Skills Program

    Science.gov (United States)

    McMahon, John M.; Wolffe, Karen E.; Wolfe, Judy; Brooker, Carrie

    2013-01-01

    This Practice Report describes the development and implementation of the "Maine Employability Skills Program," a model employment program developed by the Maine Division for the Blind and Visually Impaired (DBVI). The program was designed to support the efforts of the chronically unemployed or underemployed. These consumers were either…

  20. Employment and Training Programs.

    Science.gov (United States)

    Minnesota State Office of the Legislative Auditor, St. Paul. Program Evaluation Div.

    This report examines the effectiveness of employment and training programs in Minnesota and discusses the impact of the 1985 Jobs Bill state legislation. Chapter 1 provides an introduction to Minnesota's programs and to studies of employment and training programs conducted nationwide. Chapter 2 studies the use of Job Training Partnership Act funds…

  1. Wide-Area Chemical Sensor

    Science.gov (United States)

    2014-11-01

    2014www.ll.mit.edu The detection and localization of gas releases such as methane from leaking natural gas pipelines or nitrogen oxides from failing electrical...reference gas cells, such as methane buffered by nitro- gen, and a low-concentration gas cell that contains the target species to calibrate the...self-referencing technique employed by WACS is particularly suited to detecting chemical agents composed of primarily small molecules— methane , various

  2. Retail Employment Trends

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Robert Walters, one of the world’s leading professional specialist recruitment consultancies, has recently released a report on employment opportunities in China’s consumer goods retail industry in the first half of this year. Excerpts follow:

  3. Deficiency of employability capacity

    Directory of Open Access Journals (Sweden)

    Pelse I.

    2012-10-01

    Full Text Available Young unemployed people have comprised one of the significantly largest groups of the unemployed people in Latvia in recent years. One of the reasons why young people have difficulty integrating into the labour market is the “expectation gap” that exists in the relations between employers and the new generation of workers. Employers focus on capacity-building for employability such individual factors as strength, patience, self-discipline, self-reliance, self-motivation, etc., which having a nature of habit and are developed in a long-term work socialization process, which begins even before the formal education and will continue throughout the life cycle. However, when the socialization is lost, these habits are depreciated faster than they can be restored. Currently a new generation is entering the labour market, which is missing the succession of work socialization. Factors, such as rising unemployment and poverty in the background over the past twenty years in Latvia have created a very unfavourable employability background of “personal circumstances” and “external factors”, which seriously have impaired formation of the skills and attitudes in a real work environment. The study reveals another paradox – the paradox of poverty. Common sense would want to argue that poverty can be overcome by the job. However, the real state of affairs shows that unfavourable coincidence of the individual, personal circumstances and external factors leads to deficit of employability capacity and possibility of marked social and employment deprivation.

  4. The Senior Community Service Employment Program: The First 25 Years.

    Science.gov (United States)

    Salisbury, Karen, Ed.

    The Senior Community Service Employment Program (SCSEP) provides subsidized, part-time employment to low-income persons age 55 and older. Participants work an average of 20 hours a week and are employed in a wide variety of community service activities and facilities, including home health care, adult day care, and nutritional services. The 11…

  5. Authenticity in Employment Relations

    DEFF Research Database (Denmark)

    Tackney, Charles Thomas

    This research takes up the concept of authenticity as a criterion variable for theology of the workplace analysis, a domain which explores employment parameters in light of religious teaching on the social question at national, organizational or firm-specific levels. Following a review of the con......This research takes up the concept of authenticity as a criterion variable for theology of the workplace analysis, a domain which explores employment parameters in light of religious teaching on the social question at national, organizational or firm-specific levels. Following a review...... of the concept in Western culture, philosophy, and management studies, Religious Society of Friends (Quaker) and Roman Catholic social teachings are investigated for positively correlative data to help develop the criterion variable. From the literature review of concept and historical data in both traditions......, it becomes possible to specify employment relations parameters between the indirect and direct employer and employees in a manner that will ensure working conditions consistent with these traditions, substantially enhancing the prospect of authenticity in employment relations. This theology of the workplace...

  6. Implementing public employment policy

    DEFF Research Database (Denmark)

    Larsen, Flemming; Bredgaard, Thomas

    disciplining of the unemployed (work first) (cf.Bredgaard & Larsen, 2005; Sol & Westerweld, 2005). It is, however, remarkable that in the research field there seems to be a division of labour so that changes in public administration and changes in the substance of employment policies are dealt with separately...... an intended policy shift, there seems to be very little public discussion about them. Far-reaching policy changes become politically invisible and de-politicized. Our empirical case is the contracting out of the public employment services in Australia, the Netherlands and Denmark. The main question is what...... happens to public employment policies when they are contracted out to various non-public (for-profit and non-profit) agencies. The data consist of in-depth interviews with key respondents in the three countries, observations at service delivery agencies, and desk studies of existing research....

  7. Implementing public employment policy

    DEFF Research Database (Denmark)

    Larsen, Flemming; Bredgaard, Thomas

    disciplining of the unemployed (work first) (cf.Bredgaard & Larsen, 2005; Sol & Westerweld, 2005). It is, however, remarkable that in the research field there seems to be a division of labour so that changes in public administration and changes in the substance of employment policies are dealt with separately....... But there is an interesting question to investigate here: whether and if so how, NPM-inspired reforms are related to changes in employment policy towards a work-first approach? Are changes in public management systems created as deliberate policy changes, or do they bring about more indirect and unintended policy changes...... an intended policy shift, there seems to be very little public discussion about them. Far-reaching policy changes become politically invisible and de-politicized. Our empirical case is the contracting out of the public employment services in Australia, the Netherlands and Denmark. The main question is what...

  8. Urban rainfall estimation employing commercial microwave links

    Science.gov (United States)

    Overeem, Aart; Leijnse, Hidde; Uijlenhoet, Remko; ten Veldhuis, Marie-claire

    2015-04-01

    Urban areas often lack rainfall information. To increase the number of rainfall observations in cities, microwave links from operational cellular telecommunication networks may be employed. Although this new potential source of rainfall information has been shown to be promising, its quality needs to be demonstrated more extensively. In the Rain Sense kickstart project of the Amsterdam Institute for Advanced Metropolitan Solutions (AMS), sensors and citizens are preparing Amsterdam for future weather. Part of this project is rainfall estimation using new measurement techniques. Innovative sensing techniques will be utilized such as rainfall estimation from microwave links, umbrellas for weather sensing, low-cost sensors at lamp posts and in drainage pipes for water level observation. These will be combined with information provided by citizens in an active way through smartphone apps and in a passive way through social media posts (Twitter, Flickr etc.). Sensor information will be integrated, visualized and made accessible to citizens to help raise citizen awareness of urban water management challenges and promote resilience by providing information on how citizens can contribute in addressing these. Moreover, citizens and businesses can benefit from reliable weather information in planning their social and commercial activities. In the end city-wide high-resolution rainfall maps will be derived, blending rainfall information from microwave links and weather radars. This information will be used for urban water management. This presentation focuses on rainfall estimation from commercial microwave links. Received signal levels from tens of microwave links within the Amsterdam region (roughly 1 million inhabitants) in the Netherlands are utilized to estimate rainfall with high spatial and temporal resolution. Rainfall maps will be presented and compared to a gauge-adjusted radar rainfall data set. Rainfall time series from gauge(s), radars and links will be compared.

  9. Implementing the employability agenda

    DEFF Research Database (Denmark)

    Lee, Donna; Snaith, Holly Grace; Foster, Emma

    2014-01-01

    This article draws on research commissioned by the Higher Education Academy (HEA) and conducted during 2013. It interrogates the ways in which the employability agenda has been fed through to the level of individual politics departments. The project was particularly concerned with establishing...... whether, and how, colleagues in politics and international relations (IR) had taken ownership of student employability at the level of the curriculum. In the article, the key findings of the research are summarised. There is also discussion of the (sometimes troubling) professional implications...

  10. Employment certificates on HRT

    CERN Multimedia

    HR Department

    2008-01-01

    As part of the ongoing drive to simplify and streamline administrative procedures and processes, the IT and HR Departments have made employment certificates available on a self-service basis on the HRT application, in the main menu under "My self services". All members of the personnel can thus obtain a certificate of employment or association, in French or in English, for the present or past contractual period. The HR Department’s Records Office remains responsible for issuing any special certificates that might be required. IT-AIS (Administrative Information Services) HR-SPS (Services, Procedures & Social) Records Office – Tel. 73700

  11. Governing EU employment policy

    DEFF Research Database (Denmark)

    Sørensen, Eva; Triantafillou, Peter; Damgaard, Bodil

    2015-01-01

    In the European Union (EU), employment policy is a prerogative of the member states. Therefore the EU's ability to govern in this area depends on its capability to involve national governments and relevant stakeholders in a collaborative effort to formulate and implement shared policy objectives....... Drawing an analytical distinction between cooperation, coordination and collaboration, the article analyses the formulation and implementation of EU employment policies. It concludes that while the formulation of policy objectives and the discussion of national policy approaches do involve elements...

  12. A Stochastic Employment Problem

    Science.gov (United States)

    Wu, Teng

    2013-01-01

    The Stochastic Employment Problem(SEP) is a variation of the Stochastic Assignment Problem which analyzes the scenario that one assigns balls into boxes. Balls arrive sequentially with each one having a binary vector X = (X[subscript 1], X[subscript 2],...,X[subscript n]) attached, with the interpretation being that if X[subscript i] = 1 the ball…

  13. Employment Relations in Denmark

    DEFF Research Database (Denmark)

    Madsen, Jørgen Steen; Due, Jesper Jørgen; Andersen, Søren Kaj

    2011-01-01

    Jørgen Steen Madsen, Jesper Due og Søren Kaj Andersen har skrevet et kapitel om udviklingen i dansk arbejdsmarkedsregulering til bogen International and Comparative Employment Relations, redigeret af Greg Bamber, Russell Lansbury og Nick Wailes. Bogen indeholder bidrag, der præsenterer og...

  14. Industrialisation, Exports and Employment.

    Science.gov (United States)

    Sabolo, Yves

    1980-01-01

    After reviewing trends in industrial production, exports, and employment in the Third World since 1960, the author discusses industrialization strategies based on the local processing of raw materials for export. Such processing has proved to be a major factor in job creation. (Author/SK)

  15. Challenging Scandinavian employment relations

    DEFF Research Database (Denmark)

    Ibsen, Christian Lyhne; Larsen, Trine Pernille; Madsen, Jørgen Steen

    2011-01-01

    and employment relations in the Danish, Norwegian and Swedish public sector. In this paper, we argue that although differences exist across the Scandinavian countries, it is evident that they have managed to adopt and implement NPM-inspired reforms without dismantling their universal welfare services and strong...

  16. Learning Disabilities and Employment.

    Science.gov (United States)

    Gerber, Paul J., Ed.; Brown, Dale S., Ed.

    This book provides information on preparing individuals with learning disabilities for the challenges of employment and outlines the rights of those with learning disabilities in the workplace. Introductory chapters in Part 1 include: "Life after School: Challenges in the Workplace" (Paul J. Gerber); "The New Economy in the 21st…

  17. Employer Engagement in Education

    Science.gov (United States)

    Mann, Anthony; Dawkins, James

    2014-01-01

    The subject of this paper is employer engagement in education as it supports the learning and progression of young people through activities including work experience, job shadowing, workplace visits, career talks, mock interviews, CV workshops, business mentoring, enterprise competitions and the provision of learning resources. Interest has grown…

  18. Shifting employment revisited

    NARCIS (Netherlands)

    Cremers, Jan; Gramuglia, Alessia

    2014-01-01

    The CLR-network examined in 2006 the phenomenon of undeclared labour, with specific regard to the construction sector. The resulting study, Shifting Employment: undeclared labour in construction (Shifting-study hereafter), gave evidence that this is an area particularly affected by undeclared activi

  19. Employability through covenants

    NARCIS (Netherlands)

    Korver, T.; Oeij, P.R.A.

    2004-01-01

    How can a sustainable employment insurance system be guaranteed as a major element of the ESM? First a summary overview of the Lisbon targets and their impact on the policies of and in the member states of the European Union is given. Then follow data and problems associated with the target of enhan

  20. Vietnamese Students Employability Skills

    Science.gov (United States)

    Tuan, Nguyen Minh

    2011-01-01

    This paper attempts to investigate if the International University (IU) students' core competencies can meet the requirements set by employers, what are the differences in core competencies in final year students (or undergraduates), and how they view themselves compared with ex-students after one or two years in working environment, how…

  1. Employment impacts of solar energy in Turkey

    Energy Technology Data Exchange (ETDEWEB)

    Cetin, Muejgan, E-mail: mujgan@sistemyon.com.tr [SISTEM Yoenetim Danismanligi Ltd. Sti. Atatuerk Cad. Ulastirici sok. Eris Sitesi A Blok No:3/7 Sahrayicedid-Erenkoey Istanbul (Turkey); Egrican, Niluefer [Suntek International Orhangazi Cad. No:54/A Dragos- Istanbul (Turkey)

    2011-11-15

    Solar energy is considered a key source for the future, not only for Turkey, also for all of the world. Therefore the development and usage of solar energy technologies are increasingly becoming vital for sustainable economic development. The main objective of this study is investigating the employment effects of solar energy industry in Turkey. Some independent reports and studies, which analyze the economic and employment impacts of solar energy industry in the world have been reviewed. A wide range of methods have been used in those studies in order to calculate and to predict the employment effects. Using the capacity targets of the photovoltaic (PV) and concentrated solar power (CSP) plants in the solar Roadmap of Turkey, the prediction of the direct and indirect employment impacts to Turkey's economy is possible. As a result, solar energy in Turkey would be the primary source of energy demand and would have a big employment effects on the economics. That can only be achieved with the support of governmental feed-in tariff policies of solar energy and by increasing research-development funds. - Highlights: > The objective of the study, is investigating employment effects of solar energy. > Using the capacity targets of the PV and CSP plants in solar roadmap of Turkey. > Direct employment has been calculated by constructing of the solar power plant. > If multiplier effect is accepted as 2, total employment will be doubled. > Validity of the figures depends on the government's policies.

  2. Widely tunable Tm-doped mode-locked all-fiber laser

    Science.gov (United States)

    Yan, Zhiyu; Sun, Biao; Li, Xiaohui; Luo, Jiaqi; Shum, Perry Ping; Yu, Xia; Zhang, Ying; Wang, Qi Jie

    2016-06-01

    We demonstrated a widely tunable Tm-doped mode-locked all-fiber laser, with the widest tunable range of 136 nm, from 1842 to 1978 nm. Nonlinear polarization evolution (NPE) technique is employed to enable mode-locking and the wavelength-tunable operation. The widely tunable range attributes to the NPE-induced transmission modulation and bidirectional pumping mechanism. Such kind of tunable mode-locked laser can find various applications in optical communications, spectroscopy, time-resolved measurement, and among others.

  3. SMRT交直分网混合实时仿真接口关键技术与实现%Key Techniques and Implementation of SMRT Hybrid Real-time Simulation Employing AC/DC Partitioning Scheme

    Institute of Scientific and Technical Information of China (English)

    张树卿; 童陆园; 郭琦; 李伟; 欧开健; 胡云

    2015-01-01

    Based on super mixed real-time simulation ( SMRT) , which interfaces real-time digital simulation ( RTDS) and digital com-puter, this paper presents the architecture design and basic implementation, and the difficulties and key techniques for utilization of hy-brid simulation in AC and DC power system. Key techniques on how to smoothly interface the electromagnetic and electromechanical tran-sient simulation modes are studied and described in detail, including stability analysis and stabilizing method for the computational sys-tem. practical equivalent interface impedance in low frequency band, leading estimation of interface states based interface and interaction protocol, asymmetric interface method by three-sequence current injection, and three-sequence fundamental power calculation with close-loop auto calibration correction. Finally, the overall scheme and key techniques are verified by case analysis. More tests and practices have proven that SMRT basically meets the requirement of synthesis transient processes simulation of large AC and DC power system.%基于实时数字仿真( real-time digital simulation, RTDS)和数字计算机接口的电磁暂态、机电暂态混合实时仿真( super mixed real-time simulation, SMRT),深入阐述了电磁暂态、机电暂态两种模式的仿真平滑接口的关键技术,包括接口交互系统稳定性分析与稳定方法、实用低频段接口等效阻抗、基于超前估算的接口交互方法、三序分立电流注入不对称接口方法和闭环自校正三序基波功率计算方法。案例分析和方案整体验证证明SMRT已基本满足交直流大系统暂态综合过程仿真分析的需求。

  4. Double combined Z-plasty for wide-scar contracture release.

    Science.gov (United States)

    Yotsuyanagi, Takatoshi; Yamashita, Ken; Gonda, Ayako; Kato, Shinji; Sugai, Asuka; Yamada, Tetsuo; Kayama, Musashi; Ikeda, Kanae; Yamauchi, Makoto; Saito, Tamotsu

    2013-05-01

    Z-plasty is one of the most widely employed techniques in plastic surgery and mainly serves the following purposes: elongation along the axis of the scar, dispersal of the scar followed by breaking up the straight-line scar and realigning the scar within the lines of minimal tension. It is useful especially to release linear-scar contracture, yet difficult for wide scars. This report describes a novel technique to release contracture effectively for any wide scars using a new design called double combined Z-plasty. The design is simple. The main limb is set to incise the wide scar, and this main limb is shared as a peripheral limb by two other Z-plasty designs. From the main limb, each central limb is designed along the margin of the scar in the opposite direction. The main and central limbs have 90° between them. Other peripheral limbs are then designed facing laterally to the intact skin to make 60° for the central limb. After skin incision, two triangular intact skin flaps could be inserted into the wide scar from both sides, making it possible to release contracture. We performed this technique on eight patients. All wounds healed well and scar contracture was satisfactorily released. This procedure is very useful for wide-scar contracture, compared to conventional Z-plasty. Copyright © 2013 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.

  5. Employer`s contributions to the training of professional statisticians

    Energy Technology Data Exchange (ETDEWEB)

    Rustagi, J.S. [Ohio State Univ., Columbus, OH (United States). Statistics Dept.; Wright, T. [Oak Ridge National Lab., TN (United States). Mathematical Sciences Section]|[Bureau of the Census, Washington, DC (United States)

    1995-07-01

    Statistical science provides important techniques for decision making in a large variety of fields of human endeavor mainly through statistical practice. According to Deming (1965), ``Statistical practice is mostly a collaborative venture between (professional) statisticians and experts in subject-matter (area).`` The professional statistician must be properly trained in areas of statistical science most suited to the discipline in which the applications are made. Due to a large variety of applications. The education of a professional statistician by universities can only be very general. Higher education provides the theoretical basis of statistical science whereas the specific expertise needed by the professional statistician is given by the application areas. In this paper, the authors review the approach of academic programs which are geared towards applications and discuss some of the innovative strategies for preparing statisticians as consultants in industry and business. A survey (census) of statisticians at the national laboratories of the US Department of Energy was made to assess their training by universities and to get a broad view of additional training which has brought them to their present professional status. A particular interest is the extent to which employers have contributed to the training of statisticians. A few recommendations are made which may serve to improve the future training of statisticians for applied collaborative work by universities and employers.

  6. Employer`s contributions to the training of professional statisticians

    Energy Technology Data Exchange (ETDEWEB)

    Rustagi, J.S. [Ohio State Univ., Columbus, OH (United States). Statistics Dept.; Wright, T. [Oak Ridge National Lab., TN (United States). Mathematical Sciences Section]|[Bureau of the Census, Washington, DC (United States)

    1995-07-01

    Statistical science provides important techniques for decision making in a large variety of fields of human endeavor mainly through statistical practice. According to Deming (1965), ``Statistical practice is mostly a collaborative venture between (professional) statisticians and experts in subject-matter (area).`` The professional statistician must be properly trained in areas of statistical science most suited to the discipline in which the applications are made. Due to a large variety of applications. The education of a professional statistician by universities can only be very general. Higher education provides the theoretical basis of statistical science whereas the specific expertise needed by the professional statistician is given by the application areas. In this paper, the authors review the approach of academic programs which are geared towards applications and discuss some of the innovative strategies for preparing statisticians as consultants in industry and business. A survey (census) of statisticians at the national laboratories of the US Department of Energy was made to assess their training by universities and to get a broad view of additional training which has brought them to their present professional status. A particular interest is the extent to which employers have contributed to the training of statisticians. A few recommendations are made which may serve to improve the future training of statisticians for applied collaborative work by universities and employers.

  7. Entrepreneurship and Employment Stability

    DEFF Research Database (Denmark)

    Failla, Virgilio; Melillo, Francesca; Reichstein, Toke

    2017-01-01

    are identified and empirically explored: (i) job matching, (ii) labour market value, and (iii) personal commitment. Entrepreneurs appear to be more productive and thus better matched compared to wageworkers. However, they also appear to be locked in entrepreneurship because of their anticipated lower value...... in the labour market and because of their personal attachment to the venture. The counter-intuitive finding – entrepreneurship yields greater employment stability – only holds with respect to subsequent transitions to wagework and not for new venture founding. The results have implications for our understanding......This paper challenges the conventional belief that entrepreneurship is an unstable career path. Using longitudinal matched employer–employee data from Denmark, the analysis reveals that a transition to entrepreneurship decreases individual's employment turnover tendency. Three explanations...

  8. Rebirth through supported employment.

    Science.gov (United States)

    Strickler, David C

    2014-06-01

    In this column, the author describes how supported employment was a conduit for employment for him, and allowed for a remarkable journey of recovery, involving discovery and empowerment, incorporation, purpose, and belonging. After two decades of unemployment or underemployment, he began to see that work was possible through supported education at college, where he excelled. Federal and state grants paid for two thirds of his college education. He periodically met with a vocational rehabilitation counselor, who was very encouraging. He also had a case manager through a private psychiatric organization who provided support. The author concludes that the root of his problems was the lack of supports to help him become incorporated into society-a lack that ushered in a host of problems, probably similar to what others experience. When supports were given, many of those symptoms disappeared.

  9. Small business & employment

    OpenAIRE

    Lieshout, Harm van

    2015-01-01

    Understanding SMEs is essential to our aspired succes as an economic partner. Small enterprises are not small big enterprises, and differ substantially among them The key ingredient to our help from education remains the education of a new highly skilled generation of workers … and entrepreneurs. Entrepreneurs do not necessarily want to be employers, and are not necessarily good at it. But to ensure a healthy life in a healthy business, they need to be.

  10. Languages and Employability

    OpenAIRE

    DE SOUSA LOBO BORGES DE ARAUJO LUISA; DINIS MOTA DA COSTA PATRICIA; FLISI SARA; SOTO CALVO ELENA

    2015-01-01

    This report reviews evidence regarding the foreign language competences of European citizens and presents new findings about the relationship between foreign language skills and the likelihood of being in employment. In view of providing research evidence that can inform European Union (EU) policy initiatives, it reviews studies that frame knowledge of languages as a form of human capital, presents descriptive statistics about language knowledge and investigates whether this knowledge is rela...

  11. Soldiers’ employment attitude and employability: An exploratory study

    Directory of Open Access Journals (Sweden)

    Peng Gao

    2015-04-01

    Full Text Available Purpose: Nowadays it is very difficult for Chinese retired soldiers to find proper jobs, and the primary reason is the significant gap between job requirements and soldiers owned job skills. Therefore, it is very important to improve the soldiers’ job skills and enhance their understanding of employment.Design/methodology/approach: This paper expands the study scope from the soldiers’ job skills to the employability, initiatively introduces the employment attitude which has obvious impact on the employment of soldiers, and analyses the influence that employment attitude can play on employability. At last, this paper develops statistical method to find the relationship between soldiers’ employment attitude and employability.Findings: The empirical analysis shows that soldiers’ employment attitude has the positive linkage with employability, which makes the employment attitude a measurable variable for the employability rather than an absolute standard.Research limitations/implications: According to the research purpose, more variables should be considered in the model, consequently, there are only three indicators to describe solders’ employment attitude and four indicators to describe solders’ employability.Originality/value: This paper takes research on soldiers’ employability in a new perspective. The soldiers’ employment attitude is served as the entry point, showing the influence that soldiers’ employment attitude has on employability.

  12. Terahertz Imaging Systems With Aperture Synthesis Techniques

    DEFF Research Database (Denmark)

    Krozer, Viktor; Löffler, Torsten; Dall, Jørgen

    2010-01-01

    imaging systems are reviewed in terms of the employed architecture and data processing strategies. Active multichannel measurement method is found to be promising for real-time applications among the various terahertz imaging techniques and is chosen as a basis for the imaging instruments presented......This paper presents the research and development of two terahertz imaging systems based on photonic and electronic principles, respectively. As part of this study, a survey of ongoing research in the field of terahertz imaging is provided focusing on security applications. Existing terahertz...... in this paper. An active system operation allows for a wide dynamic range, which is important for image quality. The described instruments employ a multichannel high-sensitivity heterodyne architecture and aperture filling techniques, with close to real-time image acquisition time. In the case of the photonic...

  13. Employment opportunities for the disabled

    NARCIS (Netherlands)

    Delsen, L.W.M.

    1996-01-01

    Policy makers in the OECD Member States have developed quite different programmes and institutional arrangements to create and promote employment opportunities for the disabled. These policy approaches include legal interventions, employment support services, financial support of open employment and

  14. 2007 Veterans Employability Research Survey

    Data.gov (United States)

    Department of Veterans Affairs — The 2007 Veterans Employability Research Survey (VERS) was conducted to determine the factors that impact veterans' employability resulting from participation in the...

  15. 2007 Veterans Employability Research Survey

    Data.gov (United States)

    Department of Veterans Affairs — The 2007 Veterans Employability Research Survey (VERS) was conducted to determine the factors that impact veterans' employability resulting from participation in the...

  16. Graduate Employability: A Conceptual Framework for Understanding Employers' Perceptions

    Science.gov (United States)

    Cai, Yuzhuo

    2013-01-01

    This study provides a conceptual framework for understanding what employers think about the value of graduates with similar educational credentials in the workplace (their employability), using insights from the new institutionalism. In this framework, the development of employers' beliefs about graduates' employability is broken into a number of…

  17. Employment without Growth

    DEFF Research Database (Denmark)

    Nørgaard, Jørgen

    Employment is a central argument for economic growth in the Western world. But environmental problems like global warming points towards limits to growth. The presentation outlines the history of what has lead to this dilemma. Fortunately citizens attitudes now points towards a preference for less...... more work. There are no indication that growth at Western economies increases satisfaction or happiness. A new look at the full economy divides it into professional economy and amateur economy, and it is suggested that a reversal of the trend hitherto to draw still more of the whole economy...

  18. Challenging Scandinavian employment relations

    DEFF Research Database (Denmark)

    Ibsen, Christian Lyhne; Larsen, Trine Pernille; Madsen, Jørgen Steen

    2011-01-01

    and employment relations in the Danish, Norwegian and Swedish public sector. In this paper, we argue that although differences exist across the Scandinavian countries, it is evident that they have managed to adopt and implement NPM-inspired reforms without dismantling their universal welfare services and strong......Building on the convergence/divergence approach, this paper examines whether recent new public management (NPM) inspired reforms entailing inter alia cutbacks in the public sector, marketisation and management by performance measures have had significant implications for service provision...... traditions of collective bargaining in the public sector. However, this restructuring is taking its toll on the work environment....

  19. EMPLOYMENT AND WELFARE

    Directory of Open Access Journals (Sweden)

    Valentina VASILE

    2008-12-01

    Full Text Available In consideration of the Lisbon Agenda, the Romanian Government drew up the National Programme for Reform for 2007-2010, which established national priorities, and ways and tools to achieve economic reform and growth. Transition in Romania implied a complex and extensive system of regulations and institutions for stimulating employment and creating a flexible system of social protection. The new regulations were focused on harmonisation with the Community labour law. Increasing investment in human capital is essential for a competitive and dynamic economy. Besides, labour market policies were formulated for correcting labour market imbalances.

  20. Direction of Arrival Estimation of Wide-Band Emitters

    Science.gov (United States)

    Hojati, Shahram

    Most published algorithms for DOA (Direction of Arrival) estimation of incoming signals by spatially dispersed electromagnetic or acoustic sources rely on the narrow -band approximation. This approach is inadequate from at least two standpoints. First, the approximation breaks down in many practical situation of interest; and, second, it inhibits the exploitation of intrinsic degrees of freedom of wide-band emitters to achieve additional improvements in angular resolution. In this dissertation the direction of arrival estimation problem is examined without employing the customary narrow-band restriction. A class of algorithms that has been successfully employed for DOA estimation of narrow-band signals exploits the eigenstructure of the array correlation matrix. Although they are sub-optimum, these algorithms enjoy substantial computational advantages over the optimum maximum likelihood approaches. It is shown that the frequency domain representation of the array output leads to a spectral coherence matrix that exhibits an eigenstructure similar to the correlation matrix used under the narrow-band approximation. As a consequence, narrow-band eigenbased algorithms can be adopted to DOA estimation without restrictions on signal bandwidth. The Spectral Coherence Technique (SCT) is applied in conjunction with the MUSIC, the Root-Music and a modified form of the Pisarenko algorithms to DOA estimation of wide -band emitters using linear arrays. Simulation indicate that all three algorithms afford comparable performance: the variance of the angle of arrival estimate decreases approximately inversely with the signal time bandwidth product. They differ, however, with regard to computational efficiency. In particular, the wide-band version of the algorithm MUSIC requires substantially more processing time than either the Pisarenko or the Root-Music algorithms. These algorithms also yield comparable performance to an alternative approach using frequency segmentation (WiDE

  1. Life Sciences and employability

    Directory of Open Access Journals (Sweden)

    Wynand J. Boshoff

    2012-03-01

    Full Text Available This article addresses unemployment in rural areas. South Africa is also characterised by skills shortage and high unemployment figures, especially in rural areas as compared to urban areas. The institutional reality of education is that every rural village hosts a high school which is primarily engaged in preparing learners for further studies, whilst the Further Training Colleges (previously known as technical colleges are mainly located in the larger centres. It is with this scenario as a backdrop that the possible role of high schools to alleviate the problem is being argued. It is clear that rural employers do not expect from school leavers to be in possession of applicable knowledge, but rather to be in possession of the ability as well as certain personal characteristics that would make them employable. Unfortunately, however, this is not always found in young persons who have completed their schooling successfully. Life Sciences educators can render a valuable service should certain nontraditional approaches be incorporated into the teaching practice. This will enable them to contribute to solving one of South Africa’s serious problems.

  2. Surface science techniques

    CERN Document Server

    Bracco, Gianangelo

    2013-01-01

    The book describes the experimental techniques employed to study surfaces and interfaces. The emphasis is on the experimental method. Therefore all chapters start with an introduction of the scientific problem, the theory necessary to understand how the technique works and how to understand the results. Descriptions of real experimental setups, experimental results at different systems are given to show both the strength and the limits of the technique. In a final part the new developments and possible extensions of the techniques are presented. The included techniques provide microscopic as well as macroscopic information. They cover most of the techniques used in surface science.

  3. Terahertz wide aperture reflection tomography

    Science.gov (United States)

    Pearce, Jeremy; Choi, Hyeokho; Mittleman, Daniel M.; White, Jeff; Zimdars, David

    2005-07-01

    We describe a powerful imaging modality for terahertz (THz) radiation, THz wide aperture reflection tomography (WART). Edge maps of an object's cross section are reconstructed from a series of time-domain reflection measurements at different viewing angles. Each measurement corresponds to a parallel line projection of the object's cross section. The filtered backprojection algorithm is applied to recover the image from the projection data. To our knowledge, this is the first demonstration of a reflection computed tomography technique using electromagnetic waves. We demonstrate the capabilities of THz WART by imaging the cross sections of two test objects.

  4. Employability Skills Assessment Tool Development

    Science.gov (United States)

    Rasul, Mohamad Sattar; Rauf, Rose Amnah Abd; Mansor, Azlin Norhaini; Puvanasvaran, A. P.

    2012-01-01

    Research nationally and internationally found that technical graduates are lacking in employability skills. As employability skills are crucial in outcome-based education, the main goal of this research is to develop an Employability Skill Assessment Tool to help students and lecturers produce competent graduates in employability skills needed by…

  5. Employment in the Public Sector.

    Science.gov (United States)

    Organisation for Economic Cooperation and Development, Paris (France).

    This report synthesizes the findings from several areas of work undertaken to assess what impact public sector employment has had on both the level and structure of employment. It also examines the impact of the public sector as employer on the labor market from two viewpoints: the level and share of public sector employment and the structure of…

  6. Employability. NIACE Briefing Sheet 88

    Science.gov (United States)

    National Institute of Adult Continuing Education, 2009

    2009-01-01

    Employability skills are central to gaining and keeping employment (e.g. whether paid or unpaid, as an employee or self employed) as well as career progression. The lack of such skills is regularly referred to as one reason for the United Kingdom's often cited long tail of underachievement. Employability skills are at the forefront of government…

  7. Consistency in the World Wide Web

    DEFF Research Database (Denmark)

    Thomsen, Jakob Grauenkjær

    Tim Berners-Lee envisioned that computers will behave as agents of humans on the World Wide Web, where they will retrieve, extract, and interact with information from the World Wide Web. A step towards this vision is to make computers capable of extracting this information in a reliable...... and consistent way. In this dissertation we study steps towards this vision by showing techniques for the specication, the verication and the evaluation of the consistency of information in the World Wide Web. We show how to detect certain classes of errors in a specication of information, and we show how...... the World Wide Web, in order to help perform consistent evaluations of web extraction techniques. These contributions are steps towards having computers reliable and consistently extract information from the World Wide Web, which in turn are steps towards achieving Tim Berners-Lee's vision. ii...

  8. Multivariate optimization and simultaneous determination of hydride and non-hydride-forming elements in samples of a wide pH range using dual-mode sample introduction with plasma techniques: application on leachates from cement mortar material.

    Science.gov (United States)

    Mulugeta, Mesay; Wibetoe, Grethe; Engelsen, Christian J; Asfaw, Alemayehu

    2009-02-01

    Analytical methods have been developed for the simultaneous determination of hydride-forming (As, Sb) and non-hydride-forming (Cr, Mo, V) elements in aqueous samples of a wide pH range (pH 3-13). The methods used dual-mode (DM) sample introduction with ICP-AES and ICP-MS instruments. The effect of selected experimental variables, i.e., sample pH and concentrations of HNO(3), thiourea, and NaBH(4), were studied in a multivariate way using face-centered central composite design (FC-CCD). Compromised optimum values of the experimental parameters were identified using a response optimizer. The statistically found optimum values were verified experimentally. The methods provided improved sensitivities for the hydride-forming elements compared with the respective conventional nebulization (Neb) systems by factors of 67 (As) and 64 (Sb) for ICP-AES and 36 (As) and 54 (Sb) for ICP-MS. Slight sensitivity improvements were also observed for the non-hydride-forming elements. The limits of detection (LOD) of As and Sb were lowered, respectively, to 0.8 and 0.9 microg L(-1) with the DM-ICP-AES system and to 0.01 and 0.02 microg L(-1) with the DM-ICP-MS system. The short-term stabilities of both methods were between 2.1 and 5.4%. The methods were applied for the analysis of leachates of a cement mortar material prepared in the pH range 3-13. The elemental concentration of the leachates determined by the two DM methods were statistically compared with the values obtained from Neb-ICP-MS analysis; the values showed good agreement at the 95% confidence level. Quantitative spike recoveries were obtained for the analytes from most of the leachates using both DM methods.

  9. Employment Trajectories Beyond Retirement.

    Science.gov (United States)

    Burkert, Carola; Hochfellner, Daniela

    2017-01-01

    Within the political and academic debate on working longer, post-retirement employment is discussed as an alternative to maintain older workers in the labor market. Our article enhances this discussion by studying determinants of transitions into post-retirement jobs within differing work environments of birth cohorts 1940-1942. We estimate proportional subhazard models accounting for competing risks using unique German social security data linked to pension accounts. Our findings suggest that individuals' preferences to take up post-retirement jobs are not mutually exclusive. Our study provides evidence that taking up post-retirement jobs is related to seeking financial security, continuity, and work ability, suggesting that public policy has to develop target-oriented support through a public policy mix of different measures aligned to the different peer groups in the labor market.

  10. Research on L-Ascorbic Acid and Thiamine Based on Wide-Band Terahertz Spectroscopy Technique%宽频段太赫兹光谱技术的抗坏血酸和硫胺素研究

    Institute of Scientific and Technical Information of China (English)

    李春; 李淼; 蒋玲

    2015-01-01

    采用太赫兹时域光谱(THz-TDS)和傅里叶变换红外光谱(FTIR),测量了 L-抗坏血酸与硫胺素在0.10~3.50 THz 的光谱特性。给出了两种维生素的分子模型,详细分析比较了抗坏血酸与硫胺素在两种方法测量下吸收光谱的异同。结果表明:利用太赫兹时域光谱和傅里叶红外光谱测得的特征吸收谱在0.70~3.00 THz 完全吻合,而在较低频段0.30~0.50 THz,两种样品的傅里叶红外光谱展现了太赫兹时域光谱所没有的特征峰,同时硫胺素样品在8.00~12.00 THz 范围内,8.75,8.85,9.00,9.30和10.30 THz 出现指纹峰;研究了样品掺杂不同比例聚乙烯粉末时 THz 吸收光谱的差异,抗坏血酸对太赫兹吸收较弱,总结了两种维生素的折射率曲线与其吸收峰的对应关系;结果对抗坏血酸和硫胺素的分析识别以及维生素太赫兹光谱数据库的建立具有重要参考意义。%We employed terahertz time-domain spectra (THz-TDS)and Fourier transform infrared spectra (FTIR)to measure the terahertz spectroscopy of L-ascorbic acid and thiamine in the frequency region ranging from 0.10 to 3.50 THz.Molecular models of two vitamins have been shown,and based on above two spectroscopies,we compared the differences about the absorp-tion spectra between the L-ascorbic acid and the thiamine.The measured results show that the absorption spectra obtained based on THz-TDS and FTIR are completely consistent in the frequency range of 0.70 to 3.00 THz.New fingerprint peaks obtained by the FTIR in the low frequency region from 0.30 to 0.50 THz in terms of high sensitive silicon bolometer detector,which are not found by the THz-TDS.Furthermore,several bands at 8.75,8.85,9.00,9.30 and 10.30 THz,fingerprint peaks have been found in the frequency region from 8.00 to 12.00 THz for the thiamine sample obtained by the FTIR.Measurement results indicate the absorption spectra depend on the

  11. Endoscopic thyroidectomy: Our technique

    Directory of Open Access Journals (Sweden)

    Puntambekar Shailesh

    2007-01-01

    Full Text Available Minimally invasive surgery is widely employed for the treatment of thyroid diseases. Several minimal access approaches to the thyroid gland have been described. The commonly performed surgeries have been endoscopic lobectomies. We have performed endoscopic total thyroidectomy by the anterior chest wall approach. In this study, we have described our technique and evaluated the feasibility and efficacy of this procedure. Materials and Methods: From June 2005 to August 2006, 15 cases of endoscopic thyroidectomy were done at our institute. Five patients were male and 10 were female. Mean age was 45 years. (Range 23 to 71 years. Four patients had multinodular goiter and underwent near-total thyroidectomy; four patients had follicular adenoma and underwent hemithyroidectomy. Out of the seven patients of papillary carcinoma, four were low-risk and so a hemithyroidectomy was performed while three patients in the high risk group underwent total thyroidectomy. A detailed description of the surgical technique is provided. Results : The mean nodule size was 48 mm (range 20-80 mm and the mean operating time was 85 min (range 60-120 min. In all cases, the recurrent laryngeal nerve was identified and preserved intact, the superior and inferior parathyroids were also identified in all patients. No patients required conversion to an open cervicotomy. All patients were discharged the day after surgery. All thyroidectomies were completed successfully. No recurrent laryngeal nerve palsies or postoperative tetany occurred. The postoperative course was significantly less painful and all patients were satisfied with the cosmetic results. Conclusions : It is possible to remove large nodules and perform as well as total thyroidectomies using our endoscopic approach. It is a safe and effective technique in the hands of an appropriately trained surgeon. The patients get a cosmetic benefit without any morbidity.

  12. Critique of Sikkink and Keane's comparison of surface fuel sampling techniques

    Science.gov (United States)

    Clinton S. Wright; Roger D. Ottmar; Robert E. Vihnanek

    2010-01-01

    The 2008 paper of Sikkink and Keane compared several methods to estimate surface fuel loading in western Montana: two widely used inventory techniques (planar intersect and fixed-area plot) and three methods that employ photographs as visual guides (photo load, photoload macroplot and photo series). We feel, however, that their study design was inadequate to evaluate...

  13. The Compu-pet 100: a versatile dispenser-diluter for the mechanization of microbiological techniques.

    Science.gov (United States)

    Cremer, A W; Mellars, B; Stokes, E J

    1975-01-01

    The Compu-pet 100 diluter/dispenser is a versatile and accurate instrument which can be employed for a wide variety of microbiological tests and techniques. Time in performing tests is often more than halved when the diluter is used. Large numbers of tests can be performed with minimal fatigue.

  14. Genome-wide transcriptional reprogramming under drought stress

    KAUST Repository

    Chen, Hao

    2012-01-01

    Soil water deficit is one of the major factors limiting plant productivity. Plants cope with this adverse environmental condition by coordinating the up- or downregulation of an array of stress responsive genes. Reprogramming the expression of these genes leads to rebalanced development and growth that are in concert with the reduced water availability and that ultimately confer enhanced stress tolerance. Currently, several techniques have been employed to monitor genome-wide transcriptional reprogramming under drought stress. The results from these high throughput studies indicate that drought stress-induced transcriptional reprogramming is dynamic, has temporal and spatial specificity, and is coupled with the circadian clock and phytohormone signaling pathways. © 2012 Springer-Verlag Berlin Heidelberg. All rights are reserved.

  15. Ultra wide band antennas

    CERN Document Server

    Begaud, Xavier

    2013-01-01

    Ultra Wide Band Technology (UWB) has reached a level of maturity that allows us to offer wireless links with either high or low data rates. These wireless links are frequently associated with a location capability for which ultimate accuracy varies with the inverse of the frequency bandwidth. Using time or frequency domain waveforms, they are currently the subject of international standards facilitating their commercial implementation. Drawing up a complete state of the art, Ultra Wide Band Antennas is aimed at students, engineers and researchers and presents a summary of internationally recog

  16. THE BANGLADESHI EMPLOYMENT SECTOR: EMPLOYER PERSPECTIVES CONCERNING ENGLISH PROFICIENCY

    OpenAIRE

    Rubina Khan; Tazin Aziz Chaudhury

    2012-01-01

    Abstract: This paper presents a brief summary of a study which was carried out to investigate how employers representing major employment sectors in the Bangladeshi Industry view the skills and English proficiency level of the current employees. Opinions were also solicited on what skills are required for fresh recruits. Semi-structured interviews were conducted with 30 employers representing the major employment sectors in Bangladeshi Industry. Results revealed the importance of English as a...

  17. A Conceptual Understanding of Employability: The Employers' View in Rwanda

    Science.gov (United States)

    Bamwesiga, Penelope Mbabazi

    2013-01-01

    Many governments believe that investing in human capital should increase citizens' employability, which is why it is often presented as a solution to the problems of knowledge-based economies and societies, rising unemployment rates and economic competiveness. The aim of this study is to understand employers' views regarding the employability of…

  18. Disability and Supported Employment: Impact on Employment, Income, and Allowances

    Science.gov (United States)

    Germundsson, Per; Gustafsson, Johanna; Lind, Martin; Danermark, Berth

    2012-01-01

    In this article, we examine supported employment and its impact on the level of employment, disposable income, and sum of allowances, targeting a group of individuals with disabilities. We have particularly focused on individuals with psychiatric disabilities. Supported employment is a vocational rehabilitation service with an empowerment approach…

  19. Book review: The Oxford handbook of offshoring and global employment

    OpenAIRE

    2013-01-01

    "The Oxford Handbook of Offshoring and Global Employment." Ashok Bardhan, Dwight M Jafee & Cynthia A Kroll (eds.). Oxford University Press. May 2013. --- \\ud How do globalization, economic growth and technological developments interact to impact employment? This Handbook brings together eminent authors from a wide range of countries to assess how global economic changes have affected employment opportunities. Chapters cover both manufacturing and services sectors, and also address policy issu...

  20. World wide biomass resources

    NARCIS (Netherlands)

    Faaij, A.P.C.

    2012-01-01

    In a wide variety of scenarios, policy strategies, and studies that address the future world energy demand and the reduction of greenhouse gas emissions, biomass is considered to play a major role as renewable energy carrier. Over the past decades, the modern use of biomass has increased rapidly in

  1. Health Care Wide Hazards

    Science.gov (United States)

    ... Other Hazards (Lack of) PPE Slips/Trips/Falls Stress Tuberculosis Universal Precautions Workplace Violence Use of Medical Lasers Health Effects Use ... Needlesticks Noise Mercury Inappropriate PPE Slips/Trips/Falls ... of Universal Precautions Workplace Violence For more information, see Other Healthcare Wide ...

  2. World wide biomass resources

    NARCIS (Netherlands)

    Faaij, A.P.C.

    2012-01-01

    In a wide variety of scenarios, policy strategies, and studies that address the future world energy demand and the reduction of greenhouse gas emissions, biomass is considered to play a major role as renewable energy carrier. Over the past decades, the modern use of biomass has increased rapidly in

  3. World wide biomass resources

    NARCIS (Netherlands)

    Faaij, A.P.C.

    2012-01-01

    In a wide variety of scenarios, policy strategies, and studies that address the future world energy demand and the reduction of greenhouse gas emissions, biomass is considered to play a major role as renewable energy carrier. Over the past decades, the modern use of biomass has increased

  4. Office of Disability Employment Policy

    Science.gov (United States)

    ... OF LABOR Facebook Twitter RSS Email Office of Disability Employment Policy (ODEP) Menu About ODEP About ODEP ... Youth in Transition Publications for Order and Download Disability Statistics September 2017 Disability Employment Statistics Ages 16 ...

  5. Employment relations, flexibility and risk

    DEFF Research Database (Denmark)

    Jensen, Carsten Strøby

    Employment relations literature often distinguishes between social democratic/corporatist models of employment relations and liberal models of employment relations as they are seen as opposite or at least different ways of organizing labor markets. They are often characterized as having very...... different risk profiles in terms of relationships between employees, employers, and the state. Low levels of labor market regulation very often characterize the liberal models of employment relations as we know them from, for instance, the USA and the UK. This means that employment conditions are very often...... insecure and that the burden of unemployment risk mostly lies with the employees rather than the employer. Corporatist – or social democratic – employment relations models are, in contrast to the liberal models, often characterized by stricter regulation of the labor market and by high standards...

  6. Single-employer Pension Plans

    Data.gov (United States)

    Pension Benefit Guaranty Corporation — This spreadsheet lists the active single-employer pensions plans insured by PBGC. Plans are identified by name, employer identification number (EIN) and plan number...

  7. Employer Training Needs in Hawaii

    OpenAIRE

    Woodbury, Stephen A.

    1992-01-01

    The Survey of Employer Training Needs in Hawaii was undertaken to gather information and data on the needs and preferences of employers in Hawaii regarding government assistance with training. The need for such information was created by passage of Act 68, Session Laws of Hawaii 1991, which created the Hawaii Employment and Training Fund "to assist employers and workers through innovative programs to include, but not be limited to, business-specific training, upgrade training, new occupationa...

  8. Employability of nursing care graduates:

    OpenAIRE

    Donik Barbara; Pajnkihar Majda; Bernik Mojca

    2015-01-01

    Starting points: In Slovenia, the higher education institution for nursing started exploring employability opportunities in nursing care in connection with the achievement of competencies from students and employers point of view. This article highlights the importance of monitoring nursing graduates employability. Its aim is to examine the employability of nursing care graduates based on the self-evaluation of competences obtained during the last study year and to establish a link between th...

  9. Maternal employment and birth outcomes

    DEFF Research Database (Denmark)

    Wüst, Miriam

    selection of mothers between pregnancies drives the results, I focus on mothers whose change in employment status is likely not to be driven by underlying health (unemployed mothers and students). Given generous welfare bene ts and strict workplace regulations in Denmark, my findings support a residual...... explanation, namely, that exclusion from employment may stress mothers in countries with high-female employment rates....

  10. Employment protection legislation in Croatia

    National Research Council Canada - National Science Library

    Kunovac, Marina

    2014-01-01

    ... the observed period, primarily as concerns individual dismissal in the cases of regular employment contracts, while in the case of temporary employment the protection strengthened slightly. On the other hand, despite the adoption of amendments to the Labour Act (LA), Croatian labour legislation governing employment protection for regular employme...

  11. Employment Impact of Electronic Business.

    Science.gov (United States)

    Hecker, Daniel E.

    2001-01-01

    Electronic business is stimulating employment in some sectors across industries, such as computer-related and customer service occupations, and diminishing employment in others, such as administrative support and marketing/sales. Similarly, employment impacts will vary by industry. (Contains 56 notes and references.) (SK)

  12. Improved Search Techniques

    Science.gov (United States)

    Albornoz, Caleb Ronald

    2012-01-01

    Thousands of millions of documents are stored and updated daily in the World Wide Web. Most of the information is not efficiently organized to build knowledge from the stored data. Nowadays, search engines are mainly used by users who rely on their skills to look for the information needed. This paper presents different techniques search engine users can apply in Google Search to improve the relevancy of search results. According to the Pew Research Center, the average person spends eight hours a month searching for the right information. For instance, a company that employs 1000 employees wastes $2.5 million dollars on looking for nonexistent and/or not found information. The cost is very high because decisions are made based on the information that is readily available to use. Whenever the information necessary to formulate an argument is not available or found, poor decisions may be made and mistakes will be more likely to occur. Also, the survey indicates that only 56% of Google users feel confident with their current search skills. Moreover, just 76% of the information that is available on the Internet is accurate.

  13. Ethnic variations in immigrant poverty exit and female employment: the missing link.

    Science.gov (United States)

    Kaida, Lisa

    2015-04-01

    Despite widespread interest in poverty among recent immigrants and female immigrant employment, research on the link between the two is limited. This study evaluates the effect of recently arrived immigrant women's employment on the exit from family poverty and considers the implications for ethnic differences in poverty exit. It uses the bivariate probit model and the Fairlie decomposition technique to analyze data from the Longitudinal Survey of Immigrants to Canada (LSIC), a nationally representative survey of immigrants arriving in Canada, 2000-2001. Results show that the employment of recently arrived immigrant women makes a notable contribution to lifting families out of poverty. Moreover, the wide ethnic variations in the probability of exit from poverty between European and non-European groups are partially explained by the lower employment rates among non-European women. The results suggest that the equal earner/female breadwinner model applies to low-income recent immigrant families in general, but the male breadwinner model explains the low probability of poverty exit among select non-European groups whose female employment rates are notably low.

  14. Rethinking UK Small Employers' Skills Policies and the Role of Workplace Learning

    Science.gov (United States)

    Kitching, John

    2008-01-01

    Small business employers in the UK are widely perceived as adopting a reactive, ad hoc approach to employee skill formation. Employer reliance on workplace learning is often treated, explicitly or implicitly, as evidence of such an approach. Small employers' approaches to skill creation are investigated using data from two employer samples. Three…

  15. Wide-field TCSPC: methods and applications

    Science.gov (United States)

    Hirvonen, Liisa M.; Suhling, Klaus

    2017-01-01

    Time-correlated single photon counting (TCSPC) is a widely used, robust and mature technique to measure the photon arrival time in applications such as fluorescence spectroscopy and microscopy, LIDAR and optical tomography. In the past few years there have been significant developments with wide-field TCSPC detectors, which can record the position as well as the arrival time of the photon simultaneously. In this review, we summarise different approaches used in wide-field TCSPC detection, and discuss their merits for different applications, with emphasis on fluorescence lifetime imaging.

  16. The Employer Perspective on Sustainable Employability in the Construction Industry.

    Science.gov (United States)

    Tonnon, Susanne C; van der Veen, Rozan; Westerman, Marjan J; Robroek, Suzan J W; van der Ploeg, Hidde P; van der Beek, Allard J; Proper, Karin I

    2017-01-01

    To determine the measures employers in the construction industry take to promote sustainable employability, the barriers and facilitators that influence implementation and employer needs. Questionnaire among 499 employers and interviews with 17 employers. Employers expressed a need for alternative jobs for workers who can no longer perform physically demanding tasks, as well as means to stimulate proactive employee behavior. Measures frequently targeted the work environment (95%) and employee health (79%), less frequently personal development (63%) and organization (65%). Implementation was influenced by economic factors, rules and regulations, client demands, employee demands, company vision, company culture, and time/manpower/expertise. Implementation of measures aimed at reducing physical load and the promotion of personal development are needed.

  17. Jihadism, Narrow and Wide

    DEFF Research Database (Denmark)

    Sedgwick, Mark

    2015-01-01

    The term “jihadism” is popular, but difficult. It has narrow senses, which are generally valuable, and wide senses, which may be misleading. This article looks at the derivation and use of “jihadism” and of related terms, at definitions provided by a number of leading scholars, and at media usage....... It distinguishes two main groups of scholarly definitions, some careful and narrow, and some appearing to match loose media usage. However, it shows that even these scholarly definitions actually make important distinctions between jihadism and associated political and theological ideology. The article closes...

  18. Lessons Learned: Employment and Tactical Use of The Combat Medic During Stability Support Operations.

    Science.gov (United States)

    Eldred, Michael S

    2016-01-01

    It is the intent of this article to define the strategy by which Combat Medics have been employed in contemporary stability operations and counterinsurgency conflicts. This article describes the advances in training based on Tactical Combat Casualty Care and how training evolved into an evidence-based model. Training platforms evolved with shifts in mission requirements, new technology, improved medical techniques, and changing protocols. The last portion of this article details recommendations in doctrine, materiel, and training that could enable optimal sustainment standards while retaining operational capability across a wide variety of combat and peace operations. Lessons learned and changes adapted for Medics that are addressed: (1) advances in training and employment of the Combat Medic necessitated by tactics and strategy of current conflicts, (2) Combat Medic regulatory requirements and centralized, just-in-time training, and (3) changes in sustainment training driven by certification requirements and use of medical simulation training centers.

  19. Employment strategy of the Russians

    Directory of Open Access Journals (Sweden)

    Vladimir Borisovich Toreev

    2015-05-01

    Full Text Available During the crisis it is especially important to choose a correct employment strategy. Every employee uses an employment strategy, as he/she selects the direction of long-term employment consciously or intuitively. The choice of strategy is determined by a number of factors shaping the person’s attitudes: health, character, upbringing, education, social environment, institutional environment. The employment strategies of the young people newly entering the labor market differ from lab our strategies of workers. Young people do not have such experience and can plan their life “from scratch”. The Soviet specialists, people who started their career in the planned economy, have their own features of employment strategies. The article describes employment strategies of the Russians

  20. Business/Employers Influenza Toolkit

    Centers for Disease Control (CDC) Podcasts

    2011-09-06

    This podcast promotes the "Make It Your Business To Fight The Flu" toolkit for Businesses and Employers. The toolkit provides information and recommended strategies to help businesses and employers promote the seasonal flu vaccine. Additionally, employers will find flyers, posters, and other materials to post and distribute in the workplace.  Created: 9/6/2011 by Office of Infectious Diseases, Office of the Director (OD).   Date Released: 9/7/2011.

  1. Rational inattention and employer learning

    OpenAIRE

    Habermalz, Steffen

    2010-01-01

    Research on employer learning has provided important insights into the dynamic process that determines individual wages, especially during the early part of a worker's career. However, the recent evidence on the absence of employer learning for college graduates by Arcidiacono et al. (2008) and results that economic conditions at labor market entry have persistent effects on wages (for example Oreopoulos et al. (2008)) cast doubt on the model's validity. This paper extends the employer learni...

  2. Caseworker Behavior and Clients' Employability

    DEFF Research Database (Denmark)

    Weatherall, Cecilie Dohlmann; Markwardt, Kristoffer

    empirically looked at the link between caseworker behavior and clients’ employability. A very rich survey dataset on caseworker behavior combined with informative panel data on the caseworker’s client—the unemployed—makes it possible to study the link between caseworker behavior and clients’ job possibilities....... Results show that there is a relationship between caseworker behavior and employment among the unemployed. Especially the employability among the insured unemployed is related to the concepts of coping, and professional distance....

  3. Maternal Employment and Childhood Obesity

    DEFF Research Database (Denmark)

    Gwozdz, Wencke; Sousa-Poza, Alfonso; Reisch, Lucia

    The substantial increase in female employment rates in Europe over the past two decades has often been linked in political and public rhetoric to negative effects on child development, including obesity. We analyse this association between maternal employment and childhood obesity using rich...... on obesity's main drivers: calorie intake and physical activity. Our analysis provides little evidence for any association between maternal employment and childhood obesity, diet or physical activity....

  4. Conceptualizing Learning and Employability "Learning and Employability Framework"

    Science.gov (United States)

    Sumanasiri, Erabaddage Gishan Tharanga; Yajid, Mohd Shukri Ab; Khatibi, Ali

    2015-01-01

    Extensive studies have been done on employability and the factors that lead to employability. Previous studies have focused on career development programs, internships, work experience programs, soft-skill development programs, and even university admission criteria which can be considered external factors to university student learning…

  5. Graduates', University Lecturers' and Employers' Perceptions towards Employability Skills

    Science.gov (United States)

    Wickramasinghe, Vathsala; Perera, Lasantha

    2010-01-01

    Purpose: The purpose of this study is to explore employability skills that employers, university lecturers and graduates value to bring to the workplace, when graduates are applying for entry-level graduate jobs in the field of computer science in Sri Lanka. Design/methodology/approach: A total of three samples were selected for this exploratory…

  6. Graduates', University Lecturers' and Employers' Perceptions towards Employability Skills

    Science.gov (United States)

    Wickramasinghe, Vathsala; Perera, Lasantha

    2010-01-01

    Purpose: The purpose of this study is to explore employability skills that employers, university lecturers and graduates value to bring to the workplace, when graduates are applying for entry-level graduate jobs in the field of computer science in Sri Lanka. Design/methodology/approach: A total of three samples were selected for this exploratory…

  7. Using propensity score matching to estimate an "unbiased effect-size" between women's employment and partner violence in Tanzania.

    Science.gov (United States)

    Vyas, Seema; Heise, Lori

    2014-11-01

    Estimates of the effect of employment on women's risk of partner violence in cross-sectional studies are subject to potential "self-selection bias." Women's personal choice of whether to pursue employment or not may create fundamental differences between the group of women who are employed and those who are not employed that standard regression methods cannot account for even after adjusting for confounding. The aim of this study is to demonstrate the utility of propensity score matching (PSM), a technique used widely in econometrics, to address this bias in cross-sectional studies. We use PSM to estimate an unbiased effect-size of women's employment on their risk of experiencing partner violence in urban and rural Tanzania using data from the 2010 Tanzania Demographic and Health Survey (DHS). Three different measures of women's employment were analyzed: whether they had engaged in any productive work outside of the home in the past year, whether they received payment in cash for this productive work, and whether their employment was stable. Women who worked outside of the home were significantly different from those who did not. In both urban and rural Tanzania, women's risk of violence appears higher among women who worked in the past year than among those who did not, even after using PSM to account for underlying differences in these two groups of women. Being paid in cash reversed this effect in rural areas whereas stability of employment reduced this risk in urban centers. The estimated size of effect varied by type of matching estimator, but the direction of the association remained largely consistent. This study's findings suggest substantial self-selection into employment. PSM methods, by compensating for this bias, appear to be a useful tool for estimating the relationship between women's employment and partner violence in cross-sectional studies.

  8. Employment effects of foreign acquisition

    DEFF Research Database (Denmark)

    Bandick, Roger; Karpaty, Patrik

    2011-01-01

    that the employment of skilled labor increasesmore than that of less-skilled labor. Our results indicate that the positive employment effects are more pronounced in acquired non-MNEs than in Swedish MNEs. Furthermore, we observe shifts in skill intensities toward higher shares of skilled labor in non-MNEs taken over......This paper investigates the employment effects of foreign acquisitions in acquired firms in Swedish manufacturing during the 1990s; a period characterized by a dramatic increase in foreign ownership. We find some evidence of positive employment effects in acquired firms and it seems...

  9. THE BANGLADESHI EMPLOYMENT SECTOR: EMPLOYER PERSPECTIVES CONCERNING ENGLISH PROFICIENCY

    Directory of Open Access Journals (Sweden)

    Rubina Khan

    2012-07-01

    Full Text Available Abstract: This paper presents a brief summary of a study which was carried out to investigate how employers representing major employment sectors in the Bangladeshi Industry view the skills and English proficiency level of the current employees. Opinions were also solicited on what skills are required for fresh recruits. Semi-structured interviews were conducted with 30 employers representing the major employment sectors in Bangladeshi Industry. Results revealed the importance of English as an indispensible means of communication in the Bangladeshi corporate sector and showed that the business enterprises use extensive amounts of English. It also highlighted that the existent English proficiency of the employees was far below the required proficiency level. Recommendations were made to address the gap and prepare the youth to meet the demands of the global market. Keywords: English proficiency, competency, employability skills, global literacy skills

  10. Wide-Screen Cinema and Stereophonic Sound.

    Science.gov (United States)

    Wysotsky, Michael Z.

    Developments in the techniques of wide screen cinema and stereophonic sound throughout the world are detailed in this book. Particular attention is paid to progress in the Soviet Union in these fields. Special emphasis is placed on the Soviet view of stereophonic sound as a vital adjunct in the search for enchanced realism as opposed to the…

  11. Michelson wide-field stellar interferometry: principles and experimental verification

    NARCIS (Netherlands)

    Montilla, I.; Pereira, S.F.; Braat, J.J.M.

    2005-01-01

    A new interferometric technique for Michelson wide-field interferometry is presented that consists of a Michelson pupil-plane combination scheme in which a wide field of view can be achieved in one shot. This technique uses a stair-shaped mirror in the intermediate image plane of each telescope in t

  12. Wide Band Artificial Pulsar

    Science.gov (United States)

    Parsons, Zackary

    2017-01-01

    The Wide Band Artificial Pulsar (WBAP) is an instrument verification device designed and built by the National Radio Astronomy Observatory (NRAO) in Green Bank, West Virgina. The site currently operates the Green Bank Ultimate Pulsar Processing Instrument (GUPPI) and the Versatile Green Bank Astronomical Spectrometer (VEGAS) digital backends for their radio telescopes. The commissioning and continued support for these sophisticated backends has demonstrated a need for a device capable of producing an accurate artificial pulsar signal. The WBAP is designed to provide a very close approximation to an actual pulsar signal. This presentation is intended to provide an overview of the current hardware and software implementations and to also share the current results from testing using the WBAP.

  13. Proteome-Wide Quantitation by SILAC

    DEFF Research Database (Denmark)

    Rigbolt, Kristoffer T G; Blagoev, Blagoy

    2010-01-01

    isotope labeling by amino acids in cell culture (SILAC) has emerged as a powerful and versatile approach for proteome-wide quantitation by mass spectrometry. SILAC utilizes the cells' own metabolism to incorporate isotopically labeled amino acids into its proteome which can be mixed with the proteome...... detailed procedure for performing SILAC-based experiment for proteome-wide quantitation, including a protocol for optimizing SILAC labeling. We also provide an update on the most recent developments of this technique....... of unlabeled cells and differences in protein expression can easily be read out by comparing the abundance of the labeled versus unlabeled proteins. SILAC has been applied to numerous different cell lines and the technique has been adapted for a wide range of experimental procedures. In this chapter we provide...

  14. Use of World Wide Web and NCSA Mcsaic at Langley

    Science.gov (United States)

    Nelson, Michael

    1994-01-01

    A brief history of the use of the World Wide Web at Langley Research Center is presented along with architecture of the Langley Web. Benefits derived from the Web and some Langley projects that have employed the World Wide Web are discussed.

  15. Genome-wide analyses of small noncoding RNAs in streptococci

    Directory of Open Access Journals (Sweden)

    Nadja ePatenge

    2015-05-01

    Full Text Available Streptococci represent a diverse group of Gram-positive bacteria, which colonize a wide range of hosts among animals and humans. Streptococcal species occur as commensal as well as pathogenic organisms. Many of the pathogenic species can cause severe, invasive infections in their hosts leading to a high morbidity and mortality. The consequence is a tremendous suffering on the part of men and livestock besides the significant financial burden in the agricultural and healthcare sectors. An environmentally stimulated and tightly controlled expression of virulence factor genes is of fundamental importance for streptococcal pathogenicity. Bacterial small noncoding RNAs (sRNAs modulate the expression of genes involved in stress response, sugar metabolism, surface composition, and other properties that are related to bacterial virulence. Even though the regulatory character is shared by this class of RNAs, variation on the molecular level results in a high diversity of functional mechanisms. The knowledge about the role of sRNAs in streptococci is still limited, but in recent years, genome-wide screens for sRNAs have been conducted in an increasing number of species. Bioinformatics prediction approaches have been employed as well as expression analyses by classical array techniques or next generation sequencing. This review will give an overview of whole genome screens for sRNAs in streptococci with a focus on describing the different methods and comparing their outcome considering sRNA conservation among species, functional similarities, and relevance for streptococcal infection.

  16. A wide angle low coherence interferometry based eye length optometer

    Science.gov (United States)

    Meadway, Alexander; Siegwart, John; Wildsoet, Christine; Norton, Thomas; Zhang, Yuhua

    2015-03-01

    Interest in eye growth regulation has burgeoned with the rise in myopia prevalence world-wide. Eye length and eye shape are fundamental metrics for related research, but current in vivo measurement techniques are generally limited to the optical axis of the eye. We describe a high resolution, time domain low coherence interferometry based optometer for measuring the eye length of small animals over a wide field of view. The system is based upon a Michelson interferometer using a superluminescent diode as a source, including a sample arm and a reference arm. The sample arm is split into two paths by a polarisation beam splitter; one focuses the light on the cornea and the other focuses the light on the retina. This method has a high efficiency of detection for reflections from both surfaces. The reference arm contains a custom high speed linear motor with 25 mm stroke and equipped with a precision displacement encoder. Light reflected from the cornea and the retina is combined with the reference beam to generate low coherence interferograms. Two galvo scanners are employed to steer the light to different angles so that the eye length over a field of view of 20° × 20° can be measured. The system has an axial resolution of 6.8 μm (in air) and the motor provides accurate movement, allowing for precise and repeatable measurement of coherence peak positions. Example scans from a tree shrew are presented.

  17. Innovation, Industry Evoluation and Employment

    NARCIS (Netherlands)

    D.B. Audretsch (David); A.R. Thurik (Roy)

    1999-01-01

    textabstractThe purpose of this paper is to introduce a series of articles on the links between innovation, the evolution of industry and employment. These relations provide the building blocks of a new industrial policy. The articles are included in Innovation, Industry Evolution and Employment pub

  18. Sensor employing internal reference electrode

    DEFF Research Database (Denmark)

    2013-01-01

    The present invention concerns a novel internal reference electrode as well as a novel sensing electrode for an improved internal reference oxygen sensor and the sensor employing same.......The present invention concerns a novel internal reference electrode as well as a novel sensing electrode for an improved internal reference oxygen sensor and the sensor employing same....

  19. Leading Gainful Employment Metric Reporting

    Science.gov (United States)

    Powers, Kristina; MacPherson, Derek

    2016-01-01

    This chapter will address the importance of intercampus involvement in reporting of gainful employment student-level data that will be used in the calculation of gainful employment metrics by the U.S. Department of Education. The authors will discuss why building relationships within the institution is critical for effective gainful employment…

  20. Global Prospects for Full Employment

    Directory of Open Access Journals (Sweden)

    Ivo Šlaus

    2011-04-01

    Full Text Available The recent international financial crisis highlights the crucial role of employment in human welfare and social stability. Access to remunerative employment opportunities is essential for economic security in a market-based economic system. As the rise of democracy compelled nations to extend the voting right to all citizens, employment must be recognized as a fundamental human right. In total defiance of conventional wisdom, since 1950 job growth has outpaced the explosive growth of population, the rapid adoption of labor-saving technologies, the manifold expansion of world trade, and the dramatic shift from manual labor to white collar work. In an increasingly globalized labor market, current nation-centric theories and models of employment need to be replaced with a human-centered global perspective complemented by new indicators that recognize the central and essential contribution of employment to human economic welfare. Employment and economy are subsets of society and their growth is driven by the more fundamental process of social development. A vast array of unmet social needs combined with an enormous reservoir of underutilized social resources – technological, scientific, educational, organizational, cultural and psychological – can be harnessed to dramatically expand employment opportunities and achieve full employment on a global basis. This paper examines the theoretical basis, policy issues and strategies required to eradicate unemployment nationally and globally.

  1. Employability Skills. At a Glance

    Science.gov (United States)

    Wibrow, Bridget

    2011-01-01

    In a competitive workforce it is not just having the right qualification or technical skills that will land an individual a job; it could very well be their interpersonal skills. How someone communicates is often the first impression an employer has of a possible worker. Yet, it is precisely communication skills that employers feel applicants are…

  2. Employability: Review and Research Prospects

    Science.gov (United States)

    Guilbert, Laure; Bernaud, Jean-Luc; Gouvernet, Brice; Rossier, Jérôme

    2016-01-01

    Professional transition, employment, and reemployment are major concerns for nations facing adverse economic situations. The employability construct represents a scientific challenge in order to better understand the relationship between the job seekers' issues and the expectations of the world of work. This paper presents a review of the concept…

  3. Employer Demands from Business Graduates

    Science.gov (United States)

    McMurray, Stephen; Dutton, Matthew; McQuaid, Ronald; Richard, Alec

    2016-01-01

    Purpose: The purpose of this paper is to report on research carried out with employers to determine demand for business and management skills in the Scottish workforce. Design/methodology/approach: The research used a questionnaire in which employers were interviewed (either telephone or face to face), completed themselves and returned by e-mail,…

  4. Growth, Employment and Structural Change

    DEFF Research Database (Denmark)

    Aggarwal, Aradhna

    2016-01-01

    but structural shifts have paid off well in terms of diversification of the economy and their contribution to labour productivity especially for manufacturing. Overall employment effect had been negative but this was essentially due to contraction in the labour force; the employment rate effect turned out....... It reviews the theoretical rationale, presents the growth patterns in GSDP and employment, and estimates the employment-productivity components of GSDP growth per capita using the Shapley decomposition analysis. The results show that Punjab has slipped in terms of GSDP per capita over this period...... to be positive. Finally, while the state was outpaced by other states in terms of growth rate in GSDP per capita and even employment, structural change in the economy has been a positive feature of growth in the state....

  5. Machine learning techniques in optical communication

    DEFF Research Database (Denmark)

    Zibar, Darko; Piels, Molly; Jones, Rasmus Thomas

    2015-01-01

    Techniques from the machine learning community are reviewed and employed for laser characterization, signal detection in the presence of nonlinear phase noise, and nonlinearity mitigation. Bayesian filtering and expectation maximization are employed within nonlinear state-space framework...

  6. Machine learning techniques in optical communication

    DEFF Research Database (Denmark)

    Zibar, Darko; Piels, Molly; Jones, Rasmus Thomas

    2016-01-01

    Machine learning techniques relevant for nonlinearity mitigation, carrier recovery, and nanoscale device characterization are reviewed and employed. Markov Chain Monte Carlo in combination with Bayesian filtering is employed within the nonlinear state-space framework and demonstrated for parameter...

  7. Widely tunable edge emitters

    Science.gov (United States)

    Sarlet, Gert; Wesstrom, Jan-Olof; Rigole, Pierre-Jean; Broberg, Bjoern

    2001-11-01

    We will present the current state-of-the-art in widely tunable edge emitting lasers for WDM applications. Typical applications for a tunable laser will be discussed, and the different types of tunable lasers available today will be compared with respect to the requirements posed by these applications. We will focus on the DBR-type tunable lasers - DBR, SG-DBR and GCSR - which at present seem to be the only tunable lasers mature enough for real-life applications. Their main advantages are that they are all monolithic, with no moving parts, and can be switched from one frequency to the other very rapidly since the tuning is based on carrier injection and not on thermal or mechanical changes. We will briefly discuss the working principle of each of these devices, and present typical performance characteristics. From a manufacturing point of view, rapid characterization of the lasers is crucial; therefore an overview will be given of different characterization schemes that have recently been proposed. For the end user, reliability is the prime issue. We will show results of degradation studies on these lasers and outline how the control electronics that drive the laser can compensate for any frequency drift. Finally, we will also discuss the impact of the requirement for rapid frequency switching on the design of the control electronics.

  8. Wide HI profile galaxies

    CERN Document Server

    Brosch, Noah; Zitrin, Adi

    2011-01-01

    We investigate the nature of objects in a complete sample of 28 galaxies selected from the first sky area fully covered by ALFALFA, being well-detected and having HI profiles wider than 550 km/s. The selection does not use brightness, morphology, or any other property derived from optical or other spectral bands. We investigate the degree of isolation, the morphology, and other properties gathered or derived from open data bases and show that some objects have wide HI profiles probably because they are disturbed or are interacting, or might be confused in the ALFALFA beam. We identify a sub-sample of 14 galaxies lacking immediate interacting neighbours and showing regular, symmetric, two-horned HI profiles that we propose as candidate high-mass disk systems (CHMDs). We measure the net-Halpha emission from the CHMDs and combine this with public multispectral data to model the global star formation (SF) properties of each galaxy. The Halpha observations show SFRs not higher than a few solar masses per year. Sim...

  9. Tools & techniques--statistics: propensity score techniques.

    Science.gov (United States)

    da Costa, Bruno R; Gahl, Brigitta; Jüni, Peter

    2014-10-01

    Propensity score (PS) techniques are useful if the number of potential confounding pretreatment variables is large and the number of analysed outcome events is rather small so that conventional multivariable adjustment is hardly feasible. Only pretreatment characteristics should be chosen to derive PS, and only when they are probably associated with outcome. A careful visual inspection of PS will help to identify areas of no or minimal overlap, which suggests residual confounding, and trimming of the data according to the distribution of PS will help to minimise residual confounding. Standardised differences in pretreatment characteristics provide a useful check of the success of the PS technique employed. As with conventional multivariable adjustment, PS techniques cannot account for confounding variables that are not or are only imperfectly measured, and no PS technique is a substitute for an adequately designed randomised trial.

  10. Growth of Bulk Wide Bandgap Semiconductor Crystals and Their Potential Applications

    Science.gov (United States)

    Chen, Kuo-Tong; Shi, Detang; Morgan, S. H.; Collins, W. Eugene; Burger, Arnold

    1997-01-01

    Developments in bulk crystal growth research for electro-optical devices in the Center for Photonic Materials and Devices since its establishment have been reviewed. Purification processes and single crystal growth systems employing physical vapor transport and Bridgman methods were assembled and used to produce high purity and superior quality wide bandgap materials such as heavy metal halides and II-VI compound semiconductors. Comprehensive material characterization techniques have been employed to reveal the optical, electrical and thermodynamic properties of crystals, and the results were used to establish improved material processing procedures. Postgrowth treatments such as passivation, oxidation, chemical etching and metal contacting during the X-ray and gamma-ray device fabrication process have also been investigated and low noise threshold with improved energy resolution has been achieved.

  11. Does Marital Status Influence the Parenting Styles Employed by Parents?

    Science.gov (United States)

    Ashiono, Benard Litali; Mwoma, Teresa B.

    2015-01-01

    The current study sought to establish whether parents' marital status, influence their use of specific parenting styles in Kisauni District, Kenya. A correlational research design was employed to carry out this study. Stratified sampling technique was used to select preschools while purposive sampling technique was used to select preschool…

  12. Experimental techniques; Techniques experimentales

    Energy Technology Data Exchange (ETDEWEB)

    Roussel-Chomaz, P. [GANIL CNRS/IN2P3, CEA/DSM, 14 - Caen (France)

    2007-07-01

    This lecture presents the experimental techniques, developed in the last 10 or 15 years, in order to perform a new class of experiments with exotic nuclei, where the reactions induced by these nuclei allow to get information on their structure. A brief review of the secondary beams production methods will be given, with some examples of facilities in operation or under project. The important developments performed recently on cryogenic targets will be presented. The different detection systems will be reviewed, both the beam detectors before the targets, and the many kind of detectors necessary to detect all outgoing particles after the reaction: magnetic spectrometer for the heavy fragment, detection systems for the target recoil nucleus, {gamma} detectors. Finally, several typical examples of experiments will be detailed, in order to illustrate the use of each detector either alone, or in coincidence with others. (author)

  13. Experiment K-7-18: Effects of Spaceflight in the Muscle Adductor Longus of Rats Flown in the Soviet Biosatellite Cosmos 2044. Part 1; A Study Employing Neural Cell Adhesion Molecules (N-CAM) Immunocytochemistry and Conventional Morphological Techniques (Light and Electron Microscopy)

    Science.gov (United States)

    Daunton, N. G.; DAmelio, F.; Wu, L.; Ilyina-Kakueva, E. I.; Krasnov, I. B.; Hyde, T. M.; Sigworth, S. K.

    1994-01-01

    The effects of spaceflight upon the 'slow' muscle adductor longus was examined in rats flown in the Soviet Biosatellite COSMOS 2044. Three groups - synchronous, vivarium and basal served as controls. The techniques employed included standard methods for light microscopy, N-CAM immunocytochemistry and electron microscopy. Light microscopic observations revealed myofiber atrophy, contraction bands and segmental necrosis accompanied by cellular infiltrates composed of macrophages, leucocytes and mononuclear cells. N-CAM immunoreactivity was seen (N-CAM-IR) on the myofiber surface, satellite cells and in regenerating myofibers reminiscent of myotubes. Ultrastructural alterations included Z band streaming, disorganization of myofibrillar architecture, sarcoplasmic degradation, extensive segmental necrosis with preservation of the basement membrane, degenerative phenomena of the capillary endothelium and cellular invasion of necrotic areas. Regenerating myofibers were identified by the presence of increased amounts of ribosomal aggregates and chains of polyribosomes associated with myofilaments that displayed varied distributive patterns. The principal electron microscopic changes of the neuromuscular junctions consisted of a decrease or absence of synaptic vesicles, degeneration of axon terminals, increased number of microtubules, vacant axonal spaces and axonal sprouting. The present observations indicate that major alterations such as myofibrillar disruption and necrosis, muscle regeneration and denervation and synaptic remodeling at the level of the neuromuscular junction may take place during spaceflight.

  14. Evaluación de la calidad de los reactivos que se utilizan en la tecnica de contrainmunoelectroforesis para la determinación de anticuerpos antirrábicos Evaluation of the quality of the reagents employed in the counterimmunoelectrophoresis technique for the determination of rabies antibodies

    Directory of Open Access Journals (Sweden)

    A. M. Díaz

    1991-02-01

    Full Text Available En este estudio se comprobó que el Instituto Butantan produce antígenos y sueros indicadores que se pueden utilizar con éxito en la prueba de contrainmunoelectroforesis para titular anticuerpos antirrábicos en personas inmunizadas. No se pudieron demostrar diferencias estadísticamente significativas entre los resultados de las pruebas de estandarización realizadas en el Instituto Butantan y las pruebas de control de referencia llevadas a cabo en el Centro Panamericano de Zoonosis. Se propone que el Instituto Butantan produzca y distribuya a nivel nacional los reactivos para que los laboratorios de diagnóstico apliquen la técnica de contrainmunoelectroforesis para la determinación de anticuerpos antirrábicos.This study demonstrated that the antigens and indicator sera produced by the Butantan Institute may be employed with success in the counterimmunoelectrophoresis technique for the titration of rabies antibodies in sera from immunized individuals. No statistically significant differences were demonstrated between the results obtained in the standardization tests carried out at the Butantan Institute and the reference control tests performed at the Pan American Zoonoses Center. It is proposed that the Butantan Institute be in charge of the production and distribution of these reagents at the national level.

  15. Study on effects of technique of wide plastic-film mulching on soil water and soil temperature for seed-melon on dryland covered with sand%旱砂田宽膜覆盖籽瓜栽培技术土壤水温效应研究

    Institute of Scientific and Technical Information of China (English)

    傅亲民; 王彩斌; 刘生学

    2011-01-01

    采用田间小区试验分析研究了旱砂田宽膜覆盖与其它覆膜方式的籽瓜土壤水分和温度效应.结果表明,砂田宽膜覆盖能显著保蓄土壤水分,增加籽瓜土壤水分含量.开花期较播种,砂田全膜覆盖、砂田宽膜覆盖和砂田半膜覆盖较对照砂田不覆膜0 ~ 20 cm土壤含水量分别高3.5、3.4和2.6个百分点,1m土壤贮水量分别多34.3 mm、33.0 mm和20.3 mm.砂田宽膜覆盖大幅度提高了农田降水利用率和籽瓜水分利用效率,砂田全膜覆盖、砂田宽膜覆盖、砂田半膜覆盖降水利用率分别达到78.5%、78.2%和74.1%,籽瓜水分利用效率分别达到10.15kg/(mm·hm2)、10.05 kg/(mm·hm2)和8.22 kg/(mm·hm2).砂田宽膜覆盖显著地提高了籽瓜生育期土壤有效积温,并使平均地温达到籽瓜生长发育的最佳温度.在籽瓜膨大期,砂田全膜覆盖、砂田宽膜覆盖、砂田半膜覆盖较砂田不覆膜0~20 cm土壤平均温度较播种分别高0~4.6℃、0~4.4℃和0~ 2.4℃,土壤总积温分别高484.7℃、465.5℃和242.7℃,平均地温分别高3.8℃、3.6℃和1.9℃.与砂田全膜覆盖、砂田半膜覆盖和砂田不覆膜相比,砂田宽膜覆盖具有显著的经济效益,是目前旱砂田的最佳覆膜方式.%Field plot experiments were conducted to analyze and investigate the effect of technique of wide plastic-film mulching on soil water and soil temperature for seed-melon on dryland covered with sand. The results showed that the technique of wide film mulching could collect and keep soil water and increase soil water content for seed-melon significantly. Compared with no film mulching (CK), full film mulching, wide film mulching and half film mulching increased water content of 0 ~ 20 cm soil layer by 0-3.5%, 0-3.4% and 0-2.6% respectively, and increased water storage of lm soil layer by 0 ~ 34.3 mm, 0 - 33 .0 mm and 0 ~ 20.3 mm respectively before seed-melon anthesis. The technique increased field

  16. Toward the Employability-Link Model: Current Employment Transition to Future Employment Perspectives

    NARCIS (Netherlands)

    Thijssen, Johannes G.L.; Heijden, van der Beatrice I.J.M.; Rocco, Tonette S.

    2008-01-01

    This article goes into a critical analysis of the concept of employability, its development across historical periods, its components, and different strategic approaches to enhance workers' employability throughout their career. Given the need for a systematic analysis and more empirical research in

  17. Merchandising Techniques and Libraries.

    Science.gov (United States)

    Green, Sylvie A.

    1981-01-01

    Proposes that libraries employ modern booksellers' merchandising techniques to improve circulation of library materials. Using displays in various ways, the methods and reasons for weeding out books, replacing worn book jackets, and selecting new books are discussed. Suggestions for learning how to market and 11 references are provided. (RBF)

  18. Employability of Nursing Care Graduates

    Directory of Open Access Journals (Sweden)

    Donik Barbara

    2015-12-01

    Full Text Available Starting points: In Slovenia, the higher education institution for nursing started exploring employability opportunities in nursing care in connection with the achievement of competencies from students’ and employers’ point of view. This article highlights the importance of monitoring nursing graduates’ employability. Its aim is to examine the employability of nursing care graduates based on the self-evaluation of competences obtained during the last study year and to establish a link between the self-evaluation of competences and students’ academic performance.

  19. Efficient Wide Baseline Structure from Motion

    Science.gov (United States)

    Michelini, Mario; Mayer, Helmut

    2016-06-01

    This paper presents a Structure from Motion approach for complex unorganized image sets. To achieve high accuracy and robustness, image triplets are employed and (an approximate) camera calibration is assumed to be known. The focus lies on a complete linking of images even in case of large image distortions, e.g., caused by wide baselines, as well as weak baselines. A method for embedding image descriptors into Hamming space is proposed for fast image similarity ranking. The later is employed to limit the number of pairs to be matched by a wide baseline method. An iterative graph-based approach is proposed formulating image linking as the search for a terminal Steiner minimum tree in a line graph. Finally, additional links are determined and employed to improve the accuracy of the pose estimation. By this means, loops in long image sequences are implicitly closed. The potential of the proposed approach is demonstrated by results for several complex image sets also in comparison with VisualSFM.

  20. Making sense of employer collectivism

    DEFF Research Database (Denmark)

    Ibsen, Christian Lyhne

    2016-01-01

    – rather than accurate – rational strategies among many alternatives through so-called sensemaking. Sensemaking refers to the process by which employers continuously make sense of their competitive environment by building causal stories of competitive advantages. The article therefore tries to provide......This conceptual article argues that preferences of employers for collective action cannot be reduced to rational actors making decisions based on market structures or institutional logics. Both markets and institutions are inherently ambiguous and employers therefore have to settle for plausible......, unlike countries in similar situations, for example Finland and Sweden, Danish employers retained a coordinated industry-level bargaining system, which makes it an interesting paradox to study from the vantage point of sensemaking....

  1. Youth employment and substance use.

    Science.gov (United States)

    Kaestner, Robert; Sasso, Anthony Lo; Callison, Kevin; Yarnoff, Benjamin

    2013-01-01

    A significant portion of teens work while in school and the consequences of that work are of potential concern to society. While there is widespread support for combining work and school, and some evidence that employment has positive effects on youth development, previous research has revealed some potentially harmful consequences of employment among teens. In this paper, we investigate the relationship between teen employment and substance use. We extended this literature by studying two different cohorts of youth, and by exploiting arguably exogenous variation in youth employment and earnings caused by changes in minimum wages and the business cycle (unemployment). Estimates suggest that hours of work are positively associated with alcohol and cigarette use. However, if selection on unobserved variables were equal to selection on observed variables, these associations would be close to zero. With respect to the association between earnings and substance use, the evidence is less clear.

  2. Employment Age Discrimination on Women

    Institute of Scientific and Technical Information of China (English)

    黄捧

    2015-01-01

    Employment age discrimination against women is not an unusual phenomenon in China.Through describing the present situation and negative effect of this phenomenon,this paper claims laws are very important weapon to eliminate age discrimination against women.

  3. Are Sanctions on Employers Constitutional?

    Science.gov (United States)

    Gollobin, Ira

    1988-01-01

    Questions the constitutional validity of employer sanctions used to deter illegal immigration under the Immigration Reform and Control Act. Points out the anomaly of using criminal penalties to deter a civil, administrative violation. (FMW)

  4. Maternal Employment and Childhood Obesity

    DEFF Research Database (Denmark)

    Gwozdz, Wencke; Sousa-Poza, Alfonso; Reisch, Lucia

    2013-01-01

    The substantial increase in female employment rates in Europe over the past two decades has often been linked in political and public rhetoric to negative effects on child development, including obesity. We analyse this association between maternal employment and childhood obesity using rich...... objective reports of various anthropometric and other measures of fatness from the IDEFICS study of children aged 2-9 in 16 regions of eight European countries. Based on such data as accelerometer measures and information from nutritional diaries, we also investigate the effects of maternal employment...... on obesity's main drivers: calorie intake and physical activity. Our analysis provides little evidence for any association between maternal employment and childhood obesity, diet or physical activity....

  5. Veterans' Employment and Training Service

    Science.gov (United States)

    ... and Careers Women Who Served Programs & Services Transition GPS Frequently Asked Questions Hire a Veteran Find qualified Veterans Policy & Compliance Employer Toolkit Strengthening Military Families Apprenticeships Service Providers Grants & Opportunities Compliance Assistance ...

  6. Maternal Employment and Childhood Obesity

    DEFF Research Database (Denmark)

    Gwozdz, Wencke; Sousa-Poza, Alfonso; Reisch, Lucia

    The substantial increase in female employment rates in Europe over the past two decades has often been linked in political and public rhetoric to negative effects on child development, including obesity. We analyse this association between maternal employment and childhood obesity using rich...... objective reports of various anthropometric and other measures of fatness from the IDEFICS study of children aged 2-9 in 16 regions of eight European countries. Based on such data as accelerometer measures and information from nutritional diaries, we also investigate the effects of maternal employment...... on obesity's main drivers: calorie intake and physical activity. Our analysis provides little evidence for any association between maternal employment and childhood obesity, diet or physical activity....

  7. Are Sanctions on Employers Constitutional?

    Science.gov (United States)

    Gollobin, Ira

    1988-01-01

    Questions the constitutional validity of employer sanctions used to deter illegal immigration under the Immigration Reform and Control Act. Points out the anomaly of using criminal penalties to deter a civil, administrative violation. (FMW)

  8. Genome-Wide Approaches to Drosophila Heart Development

    Directory of Open Access Journals (Sweden)

    Manfred Frasch

    2016-05-01

    Full Text Available The development of the dorsal vessel in Drosophila is one of the first systems in which key mechanisms regulating cardiogenesis have been defined in great detail at the genetic and molecular level. Due to evolutionary conservation, these findings have also provided major inputs into studies of cardiogenesis in vertebrates. Many of the major components that control Drosophila cardiogenesis were discovered based on candidate gene approaches and their functions were defined by employing the outstanding genetic tools and molecular techniques available in this system. More recently, approaches have been taken that aim to interrogate the entire genome in order to identify novel components and describe genomic features that are pertinent to the regulation of heart development. Apart from classical forward genetic screens, the availability of the thoroughly annotated Drosophila genome sequence made new genome-wide approaches possible, which include the generation of massive numbers of RNA interference (RNAi reagents that were used in forward genetic screens, as well as studies of the transcriptomes and proteomes of the developing heart under normal and experimentally manipulated conditions. Moreover, genome-wide chromatin immunoprecipitation experiments have been performed with the aim to define the full set of genomic binding sites of the major cardiogenic transcription factors, their relevant target genes, and a more complete picture of the regulatory network that drives cardiogenesis. This review will give an overview on these genome-wide approaches to Drosophila heart development and on computational analyses of the obtained information that ultimately aim to provide a description of this process at the systems level.

  9. Globalization and Protection of Employment

    OpenAIRE

    Fischer, Justina AV; Somogyi, Frank

    2009-01-01

    Unionists and politicians frequently claim that globalization lowers employment protection of workers. This paper tests this hypothesis in a panel of 28 OECD countries from 1985 to 2003, differentiating between three dimensions of globalization and two labor market segments. While overall globalization is shown to loosen protection of the regularly employed, it increases regulation in the segment of limited-term contracts. We find economic and political globalization to drive deregulation for...

  10. Wide-field fluorescence molecular tomography with compressive sensing based preconditioning.

    Science.gov (United States)

    Yao, Ruoyang; Pian, Qi; Intes, Xavier

    2015-12-01

    Wide-field optical tomography based on structured light illumination and detection strategies enables efficient tomographic imaging of large tissues at very fast acquisition speeds. However, the optical inverse problem based on such instrumental approach is still ill-conditioned. Herein, we investigate the benefit of employing compressive sensing-based preconditioning to wide-field structured illumination and detection approaches. We assess the performances of Fluorescence Molecular Tomography (FMT) when using such preconditioning methods both in silico and with experimental data. Additionally, we demonstrate that such methodology could be used to select the subset of patterns that provides optimal reconstruction performances. Lastly, we compare preconditioning data collected using a normal base that offers good experimental SNR against that directly acquired with optimal designed base. An experimental phantom study is provided to validate the proposed technique.

  11. Employment protection legislation in Croatia

    Directory of Open Access Journals (Sweden)

    Marina Kunovac

    2014-06-01

    Full Text Available According to business climate and competitiveness indicators published by international organisations, Croatia is a country with a rigid labour market and a high level of the legal protection of employees. Given that an Act on Amendments to the Labour Act (OG 73/13 entered into force in Croatia in June 2013, this paper examines changes in employment protection legislation in Croatia and Central and Eastern European (CEE countries, as well as in Croatia's main trading partners during the period between 2008 and 2013. A cross-country comparison shows a strong downward trend in legal employment protection in most CEE countries during the observed period, primarily as concerns individual dismissal in the cases of regular employment contracts, while in the case of temporary employment the protection strengthened slightly. On the other hand, despite the adoption of amendments to the Labour Act (LA, Croatian labour legislation governing employment protection for regular employment contracts remains relatively inflexible compared to that in other countries.

  12. Employers, workers, and the future of employment-based health benefits.

    Science.gov (United States)

    Blakely, Stephen

    2010-02-01

    EBRI'S BIANNUAL POLICY FORUM: This Issue Brief summarizes presentations at EBRI's 65th biannual policy forum, held in Washington, DC, on Dec. 10, 2009, on the topic, "Employers, Workers, and the Future of Employment-Based Health Benefits." The forum brought together a wide range of economic, benefits, management, and labor experts to share their expertise at a time when major health reform legislation was being debated in Congress. The focus: How might this affect the way that the vast majority of Americans currently get their health insurance coverage? THE EMPLOYMENT-BASED HEALTH INSURANCE SYSTEM: Most people who have health insurance coverage in the United States get it through their job: In 2008, about 61 percent of the nonelderly population had employment-based health benefits, 19 percent were covered by public programs, 6 percent had individual coverage, and 17 percent were uninsured. Not surprisingly, given the deep conflicts that exist over President Obama's health reform plan and the different bills that have passed the House and Senate, benefits experts also do not agree on what "health reform" will mean for either workers or employers. Views ranged from "Will anyone notice?" to predictions of great upheaval for workers and their employers, patients and health care providers, and the entire U.S. health care system. One point of consensus among both labor and management representatives: Imposing a tax on health benefits is likely to cause major cuts in health benefits and might result in structural changes in the employment-based benefits system. A common disappointment voiced at the forum was that the initial effort to reform the delivery and cost of health care in America gradually became focused on just financing and coverage of health insurance. The ever-rising cost of health insurance affects different employers and workers in different ways--with small employers and low-wage workers being the most disadvantaged. With health premiums having risen

  13. Wide-Bandgap Semiconductors

    Energy Technology Data Exchange (ETDEWEB)

    Chinthavali, M.S.

    2005-11-22

    With the increase in demand for more efficient, higher-power, and higher-temperature operation of power converters, design engineers face the challenge of increasing the efficiency and power density of converters [1, 2]. Development in power semiconductors is vital for achieving the design goals set by the industry. Silicon (Si) power devices have reached their theoretical limits in terms of higher-temperature and higher-power operation by virtue of the physical properties of the material. To overcome these limitations, research has focused on wide-bandgap materials such as silicon carbide (SiC), gallium nitride (GaN), and diamond because of their superior material advantages such as large bandgap, high thermal conductivity, and high critical breakdown field strength. Diamond is the ultimate material for power devices because of its greater than tenfold improvement in electrical properties compared with silicon; however, it is more suited for higher-voltage (grid level) higher-power applications based on the intrinsic properties of the material [3]. GaN and SiC power devices have similar performance improvements over Si power devices. GaN performs only slightly better than SiC. Both SiC and GaN have processing issues that need to be resolved before they can seriously challenge Si power devices; however, SiC is at a more technically advanced stage than GaN. SiC is considered to be the best transition material for future power devices before high-power diamond device technology matures. Since SiC power devices have lower losses than Si devices, SiC-based power converters are more efficient. With the high-temperature operation capability of SiC, thermal management requirements are reduced; therefore, a smaller heat sink would be sufficient. In addition, since SiC power devices can be switched at higher frequencies, smaller passive components are required in power converters. Smaller heat sinks and passive components result in higher-power-density power converters

  14. Employer attractiveness from a generational perspective: Implications for employer branding

    Directory of Open Access Journals (Sweden)

    Germano Glufke Reis

    2016-03-01

    Full Text Available ABSTRACT This study aimed to identify the employer attractiveness factors prioritized by different generations: Baby Boomers, Generation X, and Generation Y. The survey was conducted with a sample of 937 professionals, working in various areas and companies, most of them were managers and had a high education level. The Employer Attractiveness Scale proposed by Berthon et al. (2005 was adopted and the results indicate that, when choosing a company, the generations under study have specific features regarding the attractiveness attributes they prioritize. It was also observed that Generation Y discriminates and ranks such attributes more clearly than the others. Possible implications for employer branding and research limitations are discussed at the end of the article.

  15. Pictorial Narrative Mapping as a Qualitative Analytic Technique

    Directory of Open Access Journals (Sweden)

    Jennifer L. Lapum

    2015-12-01

    Full Text Available Qualitative analysis is often a textual undertaking. However, it can be helpful to think about and represent study phenomena or narrative accounts in nontextual ways. In this article, we share our unique and artistic process in developing and employing pictorial narrative mapping as a qualitative analytic technique. We recast a nontextual, artistic–analytic technique by combining elements related to narrative mapping and narrative art. This technique involves aesthetic attunement to data and visual representation through pictorial design. We advanced this technique in the context of a narrative study about how arts-informed dissemination methods influence health-care practitioners’ delivery of care. We found that the Pictorial Narrative Mapping process prompted an aesthetic and imaginative experience in the analytic process of qualitative inquiry. As an analytic technique, Pictorial Narrative Mapping extends the inquiry process and enhances rigor through artistic means as well as iterative and critical dialogue. Additionally, pictorial narrative maps can provide a holistic account of the phenomenon under study and assist researchers to make meaning of nuances within complex narratives. As researchers consider employing Pictorial Narrative Mapping, we recommend that they draw upon this technique as a malleable script yielding to an organic process that emerges from both their own data and analytic discussions. We are further curious about its imaginative capacities in social and health science literature, its possibilities in other disciplinary contexts, and the prospects of what Maxine Greene refers to as becoming more wide awake—in our case, in future research analytic endeavors.

  16. Employment profiles in neuromuscular diseases.

    Science.gov (United States)

    Fowler, W M; Abresch, R T; Koch, T R; Brewer, M L; Bowden, R K; Wanlass, R L

    1997-01-01

    Consumer and rehabilitation provider factors that might limit employment opportunities for 154 individuals with six slowly progressive neuromuscular diseases (NMD) were investigated. The NMDs were spinal muscular atrophy (SMA), hereditary motor sensory neuropathy (HMSN), Becker's muscular dystrophy (BMD), facioscapulohumeral muscular dystrophy (FSHD), myotonic muscular dystrophy (MMD), and limb-girdle syndrome (LGS). Forty percent were employed in the competitive labor market at the time of the study, 50% had been employed in the past, and 10% had never been employed. The major consumer barrier to employment was education. Other important factors were type of occupation, intellectual capacity, psychosocial adjustment, and the belief by most individuals that their physical disability was the only or major barrier to obtaining a job. Psychological characteristics were associated with level of unemployment. However, physical impairment and disability were not associated with level of unemployment. There also were differences among the types of NMDs. Compared with the SMA, HMSN, BMD, and FSHD groups, the MMD and LGS groups had significantly higher levels of unemployment, lower educational levels, and fewer employed professional, management, and technical workers. Nonphysical impairment factors such as a low percentage of college graduates, impaired intellectual function in some individuals, and poor psychological adjustment were correlated with higher unemployment levels in the MMD group. Unemployment in the LGS group was correlated with a failure to complete high school. Major provider barriers to employment were the low level of referrals to Department of Rehabilitation by physicians and the low percentage of acceptance into the State Department of Rehabilitation. The low rate of acceptance was primarily attributable to the low number of referrals compounded by a lack of counselor experience with individuals with NMD. Both consumer and provider barriers may

  17. Europlat Employability Survey: Core findings and implications

    OpenAIRE

    Ježek Stanislav; Mareš Jan; Neusar Aleš

    2012-01-01

    Paper presents the core findings of the Europlat employability survey focusing on employability issues related to the post-Bologna transformations of psychology study programmes across the European Union. The objectives of the survey were to find out: (1) how relevant the employability/employment issue is; (2) what the current problems are in the employability/employment area; and (3) to explore the best practices in dealing with employability/employment issues. Findings cover both the nation...

  18. Forces affecting employment dynamics in Groningen; Case study in a lagging rural region in the Netherlands

    NARCIS (Netherlands)

    Terluin, I.J.; Post, J.H.; Wisselink, A.J.; Overbeek, M.M.M.

    1999-01-01

    In this report the focus is on employment dynamics in Groningen since the beginning of the 1980s. This study is part of an EU wide research project on employment development in leading and lagging rural regions of the EU. Total employment in Groningen increased by 36,000 jobs or with one quarter in

  19. Forces affecting employment dynamics in Drenthe; Case study in a leading rural region in the Netherlands

    NARCIS (Netherlands)

    Terluin, I.J.; Post, J.H.; Wisselink, A.J.; Overbeek, M.M.M.

    1999-01-01

    In this report the focus is on employment dynamics in Drenthe since the beginning of the 1980s. This study is part of an EU wide research project on employment development in leading and lagging rural regions of the EU. Total employment in Drenthe increased by 24,500 jobs or with over 20% in the

  20. Forces affecting employment dynamics in Drenthe; Case study in a leading rural region in the Netherlands

    NARCIS (Netherlands)

    Terluin, I.J.; Post, J.H.; Wisselink, A.J.; Overbeek, M.M.M.

    1999-01-01

    In this report the focus is on employment dynamics in Drenthe since the beginning of the 1980s. This study is part of an EU wide research project on employment development in leading and lagging rural regions of the EU. Total employment in Drenthe increased by 24,500 jobs or with over 20% in the per

  1. Forces affecting employment dynamics in Groningen; Case study in a lagging rural region in the Netherlands

    NARCIS (Netherlands)

    Terluin, I.J.; Post, J.H.; Wisselink, A.J.; Overbeek, M.M.M.

    1999-01-01

    In this report the focus is on employment dynamics in Groningen since the beginning of the 1980s. This study is part of an EU wide research project on employment development in leading and lagging rural regions of the EU. Total employment in Groningen increased by 36,000 jobs or with one quarter in

  2. Employability Skills, the Student Path, and the Role of the Academic Library and Partners

    Science.gov (United States)

    Tyrer, Gwyneth; Ives, Joanne; Corke, Charlotte

    2013-01-01

    This case study explores the introduction of a university wide employability program by the World of Work Careers Centre (WOWCC) at Liverpool John Moores University (LJMU). The article reports the background against which an employability program was implemented; the justification and growing demand for more emphasis on employability skills in…

  3. Employability Skills, the Student Path, and the Role of the Academic Library and Partners

    Science.gov (United States)

    Tyrer, Gwyneth; Ives, Joanne; Corke, Charlotte

    2013-01-01

    This case study explores the introduction of a university wide employability program by the World of Work Careers Centre (WOWCC) at Liverpool John Moores University (LJMU). The article reports the background against which an employability program was implemented; the justification and growing demand for more emphasis on employability skills in…

  4. Photomontage technique for artists using stereograms

    Science.gov (United States)

    Boyd, Patrick K.

    1994-01-01

    With more and more holographers using Stereograms, existing photographic techniques can be employed for creative uses. Using stereograms gives the artist/holographer new increased creative possibilities with fewer restrictions in subject matter. Photomontage techniques increase these possibilities even more.

  5. Employing Artificial Intelligence To Minimise Internet Fraud

    Directory of Open Access Journals (Sweden)

    Edward Wong Sek Khin

    2009-12-01

    Full Text Available Internet fraud is increasing on a daily basis with new methods for extracting funds from government, corporations, businesses in general, and persons appearing almost hourly. The increases in on-line purchasing and the constant vigilance of both seller and buyer have meant that the criminal seems to be one-step ahead at all times. To pre-empt or to stop fraud before it can happen occurs in the non-computer based daily transactions of today because of the natural intelligence of the players, both seller and buyer. Currently, even with advances in computing techniques, intelligence is not the current strength of any computing system of today, yet techniques are available which may reduce the occurrences of fraud, and are usually referred to as artificial intelligence systems.This paper provides an overview of the use of current artificial intelligence (AI techniques as a means of combating fraud.Initially the paper describes how artificial intelligence techniques are employed in systems for detecting credit card fraud (online and offline fraud and insider trading.Following this, an attempt is made to propose the using of MonITARS (Monitoring Insider Trading and Regulatory Surveillance Systems framework which use a combination of genetic algorithms, neural nets and statistical analysis in detecting insider dealing. Finally, the paper discusses future research agenda to the role of using MonITARS system.

  6. China's Employment Promotion Law Guarantees Right to Employment

    Institute of Scientific and Technical Information of China (English)

    YOU XUEYUN

    2007-01-01

    @@ China's legislature is soliciting comments and suggestions to the draft of Employment Promotion Law as an endeavor to democratize its process of legislation. Up to April 25 the National People's Congress had received over 11,000items of comments and suggestions.

  7. Employability and Employment Outcomes of No-Fee Preservice Students

    Science.gov (United States)

    Jin, Yule; Li, Ling; Ding, Shujing; Li, Zhichao

    2013-01-01

    This study used interviews and questionnaires to survey 770 no-fee preservice students. Its findings were as follows: (1) Their employability encompasses five dimensions: teaching skills, ability to learn specialized knowledge, ability to grasp elementary and secondary teaching materials and methods, communication skills, and ability to apply for…

  8. Employment, Employability and Higher Education in India: The Missing Links

    Science.gov (United States)

    Khare, Mona

    2014-01-01

    The demand for labour in India is likely to remain high and robust in the coming years, both nationally and internationally. But this would demand skilled and qualified labour. The employability of Indian youth has emerged as a major concern in recent years. Ironically, it is not just the uneducated and untrained that lack skills but it is also…

  9. Graduates' Employability: What Do Graduates and Employers Think?

    Science.gov (United States)

    Matsouka, Kyriaki; Mihail, Dimitrios M.

    2016-01-01

    The purpose of this article is to investigate the views of university graduates and human resource managers (HRMs) on graduates' employability in terms of the soft skills required by the labour market. Soft skills (personal attributes that enhance an individual's interactions, job performance and career prospects) are necessary in the labour…

  10. Employability and Employment Outcomes of No-Fee Preservice Students

    Science.gov (United States)

    Jin, Yule; Li, Ling; Ding, Shujing; Li, Zhichao

    2013-01-01

    This study used interviews and questionnaires to survey 770 no-fee preservice students. Its findings were as follows: (1) Their employability encompasses five dimensions: teaching skills, ability to learn specialized knowledge, ability to grasp elementary and secondary teaching materials and methods, communication skills, and ability to apply for…

  11. The Wide Field Imaging Interferometry Testbed

    CERN Document Server

    Zhang, X; Leisawitz, D T; Leviton, D B; Martino, A J; Mather, J C; Zhang, Xiaolei; Feinberg, Lee; Leisawitz, Dave; Leviton, Douglas B.; Martino, Anthony J.; Mather, John C.

    2001-01-01

    We are developing a Wide-Field Imaging Interferometry Testbed (WIIT) in support of design studies for NASA's future space interferometry missions, in particular the SPIRIT and SPECS far-infrared/submillimeter interferometers. WIIT operates at optical wavelengths and uses Michelson beam combination to achieve both wide-field imaging and high-resolution spectroscopy. It will be used chiefly to test the feasibility of using a large-format detector array at the image plane of the sky to obtain wide-field interferometry images through mosaicing techniques. In this setup each detector pixel records interferograms corresponding to averaging a particular pointing range on the sky as the optical path length is scanned and as the baseline separation and orientation is varied. The final image is constructed through spatial and spectral Fourier transforms of the recorded interferograms for each pixel, followed by a mosaic/joint-deconvolution procedure of all the pixels. In this manner the image within the pointing range ...

  12. Maternal employment and birth outcomes

    DEFF Research Database (Denmark)

    Wüst, Miriam

    I use Danish survey and administrative data to examine the impact of maternal employment during pregnancy on birth outcomes. As healthier mothers are more likely to work and health shocks to mothers may impact employment and birth outcomes, I combine two strategies: First, I control extensively...... for time-varying factors that may correlate with employment and birth outcomes, such as pre-pregnancy family income and maternal occupation, pregnancy-related health shocks, maternal sick listing, and health behaviors (smoking and alcohol consumption). Second, to account for remaining time......-invariant heterogeneity between mothers, I compare outcomes of mothers' consecutive children. Mothers who work during the first pregnancy trimester have a lower risk of preterm birth. I fi nd no eff ect on the probability of having a baby of small size for gestational age (SGA). To rule out the possibility that health...

  13. Research on population and employment under the world employment program.

    Science.gov (United States)

    1974-01-01

    In 1972 the ILO launched a comprehensive research project to: 1) for mulate a series of economic-demographic simulation models dealing with the direct and indirect effects of population on employment, output, and income distribution, and vice versa; 2) fund empirical studies dealing with important elements in the relationship between population and employment growth and focusing on policy issues. The project has 2 special features, the feedback between the empirical research and the model activity and the joint participation of the ILO with national research organizations in different regions. A large number of economic-demographic models have been developed in recent years. However, most of them take demographic variables as exogenous and analyze consequences in a neoclassical framework or they seek to analyze demographic responses to economic and social changes which are treated as exogenous variables. Interaction among different sets of variables is closer to reality, not uni-directional causation. Effective demand is as important as the increase in resource inputs. The situation in de veloping economies is further complicated by the coexistence of modern and traditional sectors which show many fundamental differences. Detail ed descriptions of several models under development are given. Studies being conducted include: labor force analysis, with special emphasis on developing countries; the socioeconomic determinants of fertility; studies on population, consumption patterns, and savings; an analysis of the extent to which the labor market signals through wage adjustments the rapid growth of population and labor force and the resulting excess supply of labor in relation to modern sector jobs; capital accumulation and employment in a labor-surplus situation; and the effects of population pressure on land tenure, agricultural productivity, and employment. It is hoped this research will suggest possible optimal mixes of demographic, economic, and social policies

  14. Re-employment Is Crucial

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    The U.S.-led global financial turmoil is weighing down China’s real economy, which has relied heavily on exports of labor-intensive products for growth. China’s employment suffers when the world economy succumbs to a recession. A large number of migrant workers in southeastern coastal areas are returning home because of factory closures and production suspension. Du Yang, a labor expert at the Institute of Population and Labor Economics under the Chinese Academy of Social Sciences, published an article in China Finance that argued boosting employment, especially in rural areas, should be the primary goal of economic recovery. Edited excerpts follow:

  15. Caseworker Behavior and Clients' Employability

    DEFF Research Database (Denmark)

    Weatherall, Cecilie Dohlmann; Markwardt, Kristoffer

    experience, economic environment, and rules and restrictions with respect to active labor market policies. A few studies show that organizational structures and managerial organization within the unemployment offices also influence the employability of unemployed clients. But until now, no studies have...... empirically looked at the link between caseworker behavior and clients’ employability. A very rich survey dataset on caseworker behavior combined with informative panel data on the caseworker’s client—the unemployed—makes it possible to study the link between caseworker behavior and clients’ job possibilities...

  16. Employment Growth and International Trade

    DEFF Research Database (Denmark)

    Ibsen, Rikke; Warzynski, Frederic; Westergård-Nielsen, Niels Chr.

    In this paper, we use a detailed dataset containing information about all international trade transactions of the population of Danish ?rms over more than a decade to analyze the relationship between export and import decisions and employment growth. We further distinguish between imports of ?nal...... goods and imports of intermedi­ate products. We ?nd that both imports and exports decisions are positively related to employment growth. Interestingly, both ?nished goods and intermediate goods imports have a positive link. We also control for the re-exporting process, i.e. ?rms importing ?nal goods...... to re-export them afterwards....

  17. SEASONAL ADJUSTMENT AND FORECASTING OF THE ROMANIAN AGRICULTURAL EMPLOYMENT RATE

    Directory of Open Access Journals (Sweden)

    Calcedonia ENACHE

    2015-04-01

    Full Text Available The economic policy directly related to employment and labour force aims the economic growth and the increase of the living standard using the best the capacities of economy: increasing productivity, reducing unemployment, using a larger proportion of working time. This paper aimed to use the statistical and econometric techniques to test and reveal trends in the evolution of the quarterly employment rate in agriculture, and on this basis to extrapolate the investigated characteristic.

  18. Multidirectional mobilities: Advanced measurement techniques and applications

    Science.gov (United States)

    Ivarsson, Lars Holger

    Today high noise-and-vibration comfort has become a quality sign of products in sectors such as the automotive industry, aircraft, components, households and manufacturing. Consequently, already in the design phase of products, tools are required to predict the final vibration and noise levels. These tools have to be applicable over a wide frequency range with sufficient accuracy. During recent decades a variety of tools have been developed such as transfer path analysis (TPA), input force estimation, substructuring, coupling by frequency response functions (FRF) and hybrid modelling. While these methods have a well-developed theoretical basis, their application combined with experimental data often suffers from a lack of information concerning rotational DOFs. In order to measure response in all 6 DOFs (including rotation), a sensor has been developed, whose special features are discussed in the thesis. This transducer simplifies the response measurements, although in practice the excitation of moments appears to be more difficult. Several excitation techniques have been developed to enable measurement of multidirectional mobilities. For rapid and simple measurement of the loaded mobility matrix, a MIMO (Multiple Input Multiple Output) technique is used. The technique has been tested and validated on several structures of different complexity. A second technique for measuring the loaded 6-by-6 mobility matrix has been developed. This technique employs a model of the excitation set-up, and with this model the mobility matrix is determined from sequential measurements. Measurements on ``real'' structures show that both techniques give results of similar quality, and both are recommended for practical use. As a further step, a technique for measuring the unloaded mobilities is presented. It employs the measured loaded mobility matrix in order to calculate compensation forces and moments, which are later applied in order to compensate for the loading of the

  19. GROUP PROFILE Computer Technique

    Directory of Open Access Journals (Sweden)

    Andrey V. Sidorenkov

    2015-01-01

    Full Text Available This article contains a description of the structure, the software and functional capabilities, and the scope and purposes of application of the Group Profile (GP computer technique. This technique rests on a conceptual basis (the microgroup theory, includes 16 new and modified questionnaires, and a unique algorithm, tied to the questionnaires, for identification of informal groups. The GP yields a wide range of data about the group as a whole (47 indices, each informal group (43 indices, and each group member (16 indices. The GP technique can be used to study different types of groups: production (work groups, design teams, military units, etc., academic (school classes, student groups, and sports.

  20. Spectrometric techniques 4

    CERN Document Server

    Vanasse, George A

    2013-01-01

    Spectrometric Techniques, Volume IV discusses three widely diversified areas of spectrometric techniques. The book focuses on three spectrometric methods. Chapter 1 discusses the phenomenology and applications of Coherent Anti-Stokes Raman Spectroscopy (CARS), the most commonly used optical technique that exploit the Raman effect. The second chapter is concerned with diffraction gratings and mountings for the Vacuum Ultraviolet Spectral Region. Chapter 3 accounts the uses of mass spectrometry, detectors, types of spectrometers, and ion sources. Physicists and chemists will find the book a go

  1. Employment and Unemployment in Lagos

    NARCIS (Netherlands)

    O. Fapohunda (Olanrewaju)

    1977-01-01

    textabstractWage-earning employment was non-existent in Nigeria before the advent of the white man and the British administration. The average Nigerian engaged in subsistence agriculture or some cottage industry like weaving, pottery or carving. The first wage earners in Nigeria were probably the po

  2. Higher Education, Employability and Competitiveness

    Science.gov (United States)

    Pavlin, Samo; Svetlicic, Marjan

    2012-01-01

    This paper studies the relationship between competitiveness and higher education systems in Europe. It explores whether more competitive countries have developed more labour-market-oriented systems of higher education (HE) that thereby give their graduates greater short term employability potential. Based on and a large-scale survey among 45.000…

  3. Employer-Led Quality Assurance

    Science.gov (United States)

    Tyszko, Jason A.

    2017-01-01

    Recent criticism of higher education accreditation has prompted calls for reform and sparked interest in piloting alternative quality assurance methods that better address student learning and employment outcomes. Although this debate has brought much needed attention to improving the outcomes of graduates and safeguarding federal investment in…

  4. Higher Education, Employability and Competitiveness

    Science.gov (United States)

    Pavlin, Samo; Svetlicic, Marjan

    2012-01-01

    This paper studies the relationship between competitiveness and higher education systems in Europe. It explores whether more competitive countries have developed more labour-market-oriented systems of higher education (HE) that thereby give their graduates greater short term employability potential. Based on and a large-scale survey among 45.000…

  5. Somerset County Employer Needs Assessment.

    Science.gov (United States)

    Rephann, Terance J.

    Allegany Community College in Cumberland, Maryland, conducted an employer assessment survey of Somerset County businesses during the winter of 1995 in order to provide evaluation data for planning and curriculum development for the secondary and postsecondary educational institutions. The survey was mailed to 760 establishments, with a 29 percent…

  6. Employment Effects of Trade Expansion

    Science.gov (United States)

    Lydall, H. F.

    1975-01-01

    The study to estimate the employment effects of an increase of manufactured and semi-manufactured products exported from developing to developed countries concluded that the lower the degree of development, the greater the number of jobs generated. Available from: ILO Publications, International Labour Office, CH-1211, Geneva 22, Switzerland.…

  7. Towards a New Employment Policy.

    Science.gov (United States)

    Laroque, Pierre

    1989-01-01

    International employment policy must change in order to provide people with work suited to their abilities at every life stage. If technology fails to create sufficient jobs, available work should be redistributed to ensure that large numbers of people do not remain inactive at the community's expense. (Author/CH)

  8. The employer's perspective on retirement

    NARCIS (Netherlands)

    K. Henkens; H.P. van Dalen

    2013-01-01

    In this chapter we discuss the literature with respect to the role of employers in retirement processes of older workers and provide suggestions for future research. In the first part of this chapter we will review existing theoretical insights regarding the employers’ actions and attitudes toward o

  9. The employer's perspective on retirement

    NARCIS (Netherlands)

    Henkens, C.J.I.M.; van Dalen, H.P.

    2011-01-01

    In this chapter we discuss the literature with respect to the role of employers in retirement processes of older workers and provide suggestions for future research. In the first part of this chapter we will review existing theoretical insights regarding the employers’ actions and attitudes toward o

  10. Youth Employability Training: Two Experiments

    Science.gov (United States)

    Brown, Travor; Hillier, Tara-Lynn; Warren, Amy M.

    2010-01-01

    Purpose: This paper aims to assess the effectiveness of verbal self-guidance (VSG) and self-management on youth employability. It seeks to access the joint effectiveness of these interventions, grounded in social cognitive and goal setting theories, for youth job seekers. Design/methodology/approach: The studies used experimental designs involving…

  11. Job satisfaction and contingent employment

    NARCIS (Netherlands)

    de Graaf-Zijl, M.

    2012-01-01

    This paper analyses job satisfaction as an aggregate of satisfaction with several job aspects, with special focus on the influence of contingent-employment contracts. Fixed-effect analysis is applied on a longitudinal sample of Dutch employees in four work arrangements: regular, fixed-term, on-call

  12. Employment status and working conditions

    NARCIS (Netherlands)

    Goudswaard, A.; Andries, F.

    2002-01-01

    In the 1990s an increasing number of employees were engaged in non-permanent contract work in the European Union. This can, to a large extent, be explained by an active labour market policy where job creation was the focus, and this type of employment provided a way of meeting the increased demand f

  13. Supported employment: randomised controlled trial*

    Science.gov (United States)

    Howard, Louise M.; Heslin, Margaret; Leese, Morven; McCrone, Paul; Rice, Christopher; Jarrett, Manuela; Spokes, Terry; Huxley, Peter; Thornicroft, Graham

    2010-01-01

    Background There is evidence from North American trials that supported employment using the individual placement and support (IPS) model is effective in helping individuals with severe mental illness gain competitive employment. There have been few trials in other parts of the world. Aims To investigate the effectiveness and cost-effectiveness of IPS in the UK. Method Individuals with severe mental illness in South London were randomised to IPS or local traditional vocational services (treatment as usual) (ISRCTN96677673). Results Two hundred and nineteen participants were randomised, and 90% assessed 1 year later. There were no significant differences between the treatment as usual and intervention groups in obtaining competitive employment (13% in the intervention group and 7% in controls; risk ratio 1.35, 95% CI 0.95–1.93, P = 0.15), nor in secondary outcomes. Conclusions There was no evidence that IPS was of significant benefit in achieving competitive employment for individuals in South London at 1-year follow-up, which may reflect suboptimal implementation. Implementation of IPS can be challenging in the UK context where IPS is not structurally integrated with mental health services, and economic disincentives may lead to lower levels of motivation in individuals with severe mental illness and psychiatric professionals. PMID:20435968

  14. Job satisfaction and contingent employment

    NARCIS (Netherlands)

    de Graaf-Zijl, M.

    2012-01-01

    This paper analyses job satisfaction as an aggregate of satisfaction with several job aspects, with special focus on the influence of contingent-employment contracts. Fixed-effect analysis is applied on a longitudinal sample of Dutch employees in four work arrangements: regular, fixed-term, on-call

  15. INDISPENSABILITY OF ENGLISH FOR EMPLOYABILITY

    Directory of Open Access Journals (Sweden)

    Dr. Arun K Behera

    2013-07-01

    Full Text Available This paper discusses how English acts as a binding language across the world. The advent of English as a force in the third world countries is dealt with in detail, including aspects like economic and financial growth of the third world countries. Moreover, the impact of the rise in educational and awareness levels, combined with the growth in per capita income on the employability of the citizens of the third world countries has also been taken up. Growing desires of the people, coupled with a deep - rooted need to have an improved standard of living has been touched upon. Attempts have been made here how these factors play a vital role in employability. The economic and cultural change in the third world countries and how it has impacted the employment opportunities, plus the reasons why English plays a vital role in all these are also covered in the paper. I have tried to deal with the attitudinal change in the government organizations and their role in adding to the burgeoning employment opportunities and the accompanying importance of English.

  16. Improving Graduates' Employment Competitiveness: A Practice in Peking University

    Science.gov (United States)

    Qi, Yanli

    2011-01-01

    The paper introduces data on the employment of postgraduates in the Department of Information Management of Peking University in 2000-2009. Master's graduates in LIS in Peking University have a wide job choice. In China, the job market for postgraduates in LIS is composed of enterprises and business organizations, rather than libraries and…

  17. The perceived employability of ex-prisoners and offenders.

    Science.gov (United States)

    Graffam, Joseph; Shinkfield, Alison J; Hardcastle, Lesley

    2008-12-01

    A large-scale study was conducted to examine the perceived employability of ex-prisoners and offenders. Four participant groups comprising 596 (50.4%) employers, 234 (19.8%) employment service workers, 176 (14.9%) corrections workers, and 175 (14.8%) prisoners and offenders completed a questionnaire assessing the likelihood of a hypothetical job seeker's both obtaining and maintaining employment; the importance of specific skills and characteristics to employability; and the likelihood that ex-prisoners, offenders, and the general workforce exhibit these skills and characteristics. Apart from people with an intellectual or psychiatric disability, those with a criminal background were rated as being less likely than other disadvantaged groups to obtain and maintain employment. In addition, ex-prisoners were rated as being less likely than offenders and the general workforce to exhibit the skills and characteristics relevant to employability. Implications for the preparation and support of ex-prisoners and offenders into employment are discussed, together with broader community-wide initiatives to promote reintegration.

  18. Employment, Social Networks and Undocumented Migrants: The Employer Perspective.

    Science.gov (United States)

    Bloch, Alice; McKay, Sonia

    2015-02-01

    This article draws on data from qualitative interviews with ethnic enclave and ethnic economy business entrepreneurs from Chinese, Bangladeshi and Turkish-speaking communities in London. Routes into business and worker recruitment practices are explored, demonstrating the centrality of social capital in the form of family and other social networks within these processes. The article investigates what employers consider the desirable characteristics of workers: trust, kinship, gender, social networks, language compatibility and the needs of the business intersect with racialised notions of workers' strengths and characteristics. Finally, we consider changing practices in relation to the employment of undocumented migrants, in the context of an increasingly punitive legislative regime. The complex and variable impact of policy alongside the ways in which other obligations and positions outweigh the fear and risks of sanctions associated with non-compliance is revealed.

  19. Employment, Social Networks and Undocumented Migrants: The Employer Perspective

    Science.gov (United States)

    Bloch, Alice; McKay, Sonia

    2015-01-01

    This article draws on data from qualitative interviews with ethnic enclave and ethnic economy business entrepreneurs from Chinese, Bangladeshi and Turkish-speaking communities in London. Routes into business and worker recruitment practices are explored, demonstrating the centrality of social capital in the form of family and other social networks within these processes. The article investigates what employers consider the desirable characteristics of workers: trust, kinship, gender, social networks, language compatibility and the needs of the business intersect with racialised notions of workers’ strengths and characteristics. Finally, we consider changing practices in relation to the employment of undocumented migrants, in the context of an increasingly punitive legislative regime. The complex and variable impact of policy alongside the ways in which other obligations and positions outweigh the fear and risks of sanctions associated with non-compliance is revealed. PMID:25866421

  20. Joint Degree Program: the Perspective of Employers

    Directory of Open Access Journals (Sweden)

    Tatjana Bilevičienė

    2013-08-01

    answers can be analyzed as qualitative research results, results can be only achieved by performing an overview of experts’opinions. Practical implications — evaluation of respondents’ choices shows that more than half of employers that surveyed the joint degree program do not see an advantage. However, their indication of the shortcomings is related more to physical circumstances and developments, while highlighting the advantages associated with the program content and trained student competencies. In addition, a majority of respondents confirm that the labour market is in need of students who graduated from the joint programs. The opinion survey carried out must be taken in formulating education policy and university policy. Originality/Value — though joint degree and double degree is kind of new trend in high education, the social implications and importance have not yet been widely investigated, the strong and weak sides were not validated by scientific research methods. This article extends to students opinion research with new data giving insights to employers opinions on the same question and even looks for the points were those opinions are the same and on which aspects it implements EU and Bologna process goals. Research type: research paper and viewpoint.

  1. Telescopes and Techniques

    CERN Document Server

    Kitchin, C R

    2013-01-01

    Telescopes and Techniques has proved itself in its first two editions, having become probably one of the most widely used astronomy texts, both for amateur astronomers and astronomy and astrophysics undergraduates. Both earlier editions of the book were widely used for introductory practical astronomy courses in many universities. In this Third Edition the author guides the reader through the mathematics, physics and practical techniques needed to use today's telescopes (from the smaller models to the larger instruments installed in many colleges) and how to find objects in the sky. Most of the physics and engineering involved is described fully and requires little prior knowledge or experience. Both visual and electronic imaging techniques are covered, together with an introduction to how data (measurements) should be processed and analyzed. A simple introduction to radio telescopes is also included. Brief coverage of the more advanced topics of photometry and spectroscopy are included, but mainly to enable ...

  2. Genome-wide transcriptome analysis of 150 cell samples†

    Science.gov (United States)

    Russom, Aman; Xiao, Wenzhong; Wilhelmy, Julie; Wang, Shenglong; Heath, Joe Don; Kurn, Nurith; Tompkins, Ronald G.; Davis, Ronald W.; Toner, Mehmet

    2013-01-01

    A major challenge in molecular biology is interrogating the human transcriptome on a genome wide scale when only a limited amount of biological sample is available for analysis. Current methodologies using microarray technologies for simultaneously monitoring mRNA transcription levels require nanogram amounts of total RNA. To overcome the sample size limitation of current technologies, we have developed a method to probe the global gene expression in biological samples as small as 150 cells, or the equivalent of approximately 300 pg total RNA. The new method employs microfluidic devices for the purification of total RNA from mammalian cells and ultra-sensitive whole transcriptome amplification techniques. We verified that the RNA integrity is preserved through the isolation process, accomplished highly reproducible whole transcriptome analysis, and established high correlation between repeated isolations of 150 cells and the same cell culture sample. We validated the technology by demonstrating that the combined microfluidic and amplification protocol is capable of identifying biological pathways perturbed by stimulation, which are consistent with the information recognized in bulk-isolated samples. PMID:20023796

  3. Genome-wide transcriptome analysis of 150 cell samples.

    Science.gov (United States)

    Irimia, Daniel; Mindrinos, Michael; Russom, Aman; Xiao, Wenzhong; Wilhelmy, Julie; Wang, Shenglong; Heath, Joe Don; Kurn, Nurith; Tompkins, Ronald G; Davis, Ronald W; Toner, Mehmet

    2009-01-01

    A major challenge in molecular biology is interrogating the human transcriptome on a genome wide scale when only a limited amount of biological sample is available for analysis. Current methodologies using microarray technologies for simultaneously monitoring mRNA transcription levels require nanogram amounts of total RNA. To overcome the sample size limitation of current technologies, we have developed a method to probe the global gene expression in biological samples as small as 150 cells, or the equivalent of approximately 300 pg total RNA. The new method employs microfluidic devices for the purification of total RNA from mammalian cells and ultra-sensitive whole transcriptome amplification techniques. We verified that the RNA integrity is preserved through the isolation process, accomplished highly reproducible whole transcriptome analysis, and established high correlation between repeated isolations of 150 cells and the same cell culture sample. We validated the technology by demonstrating that the combined microfluidic and amplification protocol is capable of identifying biological pathways perturbed by stimulation, which are consistent with the information recognized in bulk-isolated samples.

  4. Healthcare employers' policies on nurse education.

    Science.gov (United States)

    Pittman, Patricia; Herrera, Carolina-Nicole S; Horton, Katherine; Thompson, Pamela A; Ware, Jamie M; Terry, Margaret

    2013-01-01

    The 2010 recommendation that the proportion of registered nurses with BSN (bachelor of science in nursing) degrees in the nursing workforce should increase from the current 40% to 80% by the year 2020 has shifted the focus on nurses educational progression from state legislatures-where changes in entry-level requirements were debated for decades-to the executive suites of large healthcare providers. The recommendation, contained in the report titled The Future of Nursing: Leading Change, Advancing Health, by the Robert Wood Johnson Foundation Initiative on the Future of Nursing at the Institute of Medicine, suggests that human resources policies for nurses have the potential to double the rates of college degree completions (IOM, 2010). We surveyed 447 nurse executives in hospitals, nurse-led clinics, and home and hospice companies to explore the current practices of healthcare employers with regard to this recommendation. Almost 80% of respondents reported that their institution either preferred or required newly hired nurses to have a bachelor's degree, and 94% of the facilities offered some level of tuition reimbursement. Only 25%, however, required their nurses to earn a BSN or offered salary differentials on the basis of educational attainment (9%). We conclude that if employers are serious about wanting a more highly educated nurse workforce, they need to adopt requirements for degree completion and wage differentials in the coming years. The likelihood that such policies will be widely adopted, however, is dramatically affected by the dynamics of nursing supply and demand.

  5. Contentious Conversations: Using Mediation Techniques in Difficult Clinical Ethics Consultations.

    Science.gov (United States)

    Fiester, Autumn

    2015-01-01

    Mediators utilize a wide range of skills in the process of facilitating dialogue and resolving conflicts. Among the most useful techniques for clinical ethics consultants (CECs)-and surely the least discussed-are those employed in acrimonious, hostile conversations between stakeholders. In the context of clinical ethics disputes or other bedside conflicts, good mediation skills can reverse the negative interactions that have prevented the creation of workable treatment plans or ethical consensus. This essay lays out the central framework mediators use in distinguishing positions from interests and describes a set of strategies for managing contentious ethics consultations or working with "difficult" patients, families, or patient-careprovider interactions.

  6. Wireless communications algorithmic techniques

    CERN Document Server

    Vitetta, Giorgio; Colavolpe, Giulio; Pancaldi, Fabrizio; Martin, Philippa A

    2013-01-01

    This book introduces the theoretical elements at the basis of various classes of algorithms commonly employed in the physical layer (and, in part, in MAC layer) of wireless communications systems. It focuses on single user systems, so ignoring multiple access techniques. Moreover, emphasis is put on single-input single-output (SISO) systems, although some relevant topics about multiple-input multiple-output (MIMO) systems are also illustrated.Comprehensive wireless specific guide to algorithmic techniquesProvides a detailed analysis of channel equalization and channel coding for wi

  7. Geolocation Techniques Principles and Applications

    CERN Document Server

    Gentile, Camillo; Raulefs, Ronald; Teolis, Carole

    2013-01-01

    Geolocation Techniques: Principles and Applications provides a comprehensive overview of geolocation technologies and techniques, from radio-frequency based to inertial based. The focus of this book is to provide an overview on the different types of infra-structure supported by most commercial localization systems as well as on the most popular computational techniques which these systems employ. This book can serve as a reference for scholarly activities such as teaching, self-learning, or research.

  8. Employment growth and regional development

    DEFF Research Database (Denmark)

    Eriksson, Rikard; Hansen, Høgni Kalsø; Winther, Lars

    2017-01-01

    This paper explores the potential drivers behind uneven regional development in the context of employment growth in Denmark and Sweden. In particular, we are interested in the roles of urbanization, industrial change and the rise of the new economy as manifested in the growth of the two economies...... in 2002–2007. The aim of this paper is, therefore, to analyse the impact of a number of key industrial sectors on regional employment growth in the two countries. The empirical analysis is based on longitudinal matched employer–employee data retrieved from official registers in each economy from 2002...... economies, we find that, although in general these economies react relatively similarly to changes, embarking on a narrower analysis of the individual sectors reveals marked national differences. This indicates that context matters in the analysis of regional economic dynamics in terms of structure, system...

  9. Employment trends: an international comparison

    Directory of Open Access Journals (Sweden)

    C. DELL’ARINGA

    2013-12-01

    Full Text Available Interest in employment trend forecasts has grown significantly in recent years, especially those related to the long term. What is surprising is the large differences in trends that emerge from country to country, even from estimates by international organisations that compare the experiences of various countries. It is unclear if the reasons for such differences lie in differing effects of general phenomena that characterise the experience of all countries, such as technical progress, or rather specific phenomena peculiar to each country. What seems clear, however, is the extrapolative nature of the forecasts. The present note looks at the difficult task of identifying the historical determinants of the evolution of employment in the long run, in order to better understand the way in which forecasts are devised today.

  10. Interferometric imaging with the 32 element Murchison Wide-field Array

    CERN Document Server

    Ord, S M; Wayth, R B; Greenhill, L J; Bernardi, G; Gleadow, S; Edgar, R G; Clark, M A; Allen, G; Arcus, W; Benkevitch, L; Bowman, J D; Briggs, F H; Bunton, J D; Burns, S; Cappallo, R J; Coles, W A; Corey, B E; deSouza, L; Doeleman, S S; Derome, M; Deshpande, A; Emrich, D; Goeke, R; Gopalakrishna, M R; Herne, D; Hewitt, J N; Kamini, P A; Kaplan, D L; Kasper, J C; Kincaid, B B; Kocz, J; Kowald, E; Kratzenberg, E; Kumar, D; Lonsdale, C J; Lynch, M J; McWhirter, S R; Madhavi, S; Matejek, M; Morales, M F; Morgan, E; Oberoi, D; Pathikulangara, J; Prabu, T; Rogers, A E E; Roshi, A; Salah, J E; Schinkel, A; Shankar, N Udaya; Srivani, K S; Stevens, J; Tingay, S J; Vaccarella, A; Waterson, M; Webster, R L; Whitney, A R; Williams, A; Williams, C

    2010-01-01

    The Murchison Wide-field Array (MWA) is a low frequency radio telescope, currently under construction, intended to search for the spectral signature of the epoch of re-ionisation (EOR) and to probe the structure of the solar corona. Sited in Western Australia, the full MWA will comprise 8192 dipoles grouped into 512 tiles, and be capable of imaging the sky south of 40 degree declination, from 80 MHz to 300 MHz with an instantaneous field of view that is tens of degrees wide and a resolution of a few arcminutes. A 32-station prototype of the MWA has been recently commissioned and a set of observations taken that exercise the whole acquisition and processing pipeline. We present Stokes I, Q, and U images from two ~4 hour integrations of a field 20 degrees wide centered on Pictoris A. These images demonstrate the capacity and stability of a real-time calibration and imaging technique employing the weighted addition of warped snapshots to counter extreme wide field imaging distortions.

  11. Measures Taken to Secure Employment

    Institute of Scientific and Technical Information of China (English)

    Li Qi

    2009-01-01

    @@ The background In 2008, the financial crisis has swept the globe and its tentacles went across the Pacific Ocean to mainland China. Along with the global economic recession and the slowdown of domestic economic growth, the unemployed and the new em-ployees have become the direct victims of this economic cold wave. The issue of employment is the focus of attention of society from all walks of life.

  12. Maintenance of employment on dialysis.

    Science.gov (United States)

    Rasgon, S; James-Rogers, A; Chemleski, B; Ledezma, M; Mercado, L; Besario, M; Trivedi, J; Miller, M; Dee, L; Pryor, L; Yeoh, H

    1997-04-01

    This article describes the components of a multidisciplinary effort focused on promoting, among other goals, continued employment during end-stage renal disease (ESRD) treatment. The education and guidance of the patient begin during the pre-ESRD period, intensify through dialysis treatment, and continue even through posttransplantation follow-up. Such focused programs support patients in retaining their usual lifestyle, staying in their current jobs where possible, and maximizing self-esteem and quality of life.

  13. Diamond Synthesis Employing Nanoparticle Seeds

    Science.gov (United States)

    Uppireddi, Kishore (Inventor); Morell, Gerardo (Inventor); Weiner, Brad R. (Inventor)

    2014-01-01

    Iron nanoparticles were employed to induce the synthesis of diamond on molybdenum, silicon, and quartz substrates. Diamond films were grown using conventional conditions for diamond synthesis by hot filament chemical vapor deposition, except that dispersed iron oxide nanoparticles replaced the seeding. This approach to diamond induction can be combined with dip pen nanolithography for the selective deposition of diamond and diamond patterning while avoiding surface damage associated to diamond-seeding methods.

  14. Achieving and sustaining full employment.

    Science.gov (United States)

    Rosen, S M

    1995-01-01

    Human rights and public health considerations provide strong support for policies that maximize employment. Ample historical and conceptual evidence supports the feasibility of full employment policies. New factors affecting the labor force, the rate of technological change, and the globalization of economic activity require appropriate policies--international as well as national--but do not invalidate the ability of modern states to apply the measures needed. Among these the most important include: (I) systematic reduction in working time with no loss of income, (2) active labor market policies, (3) use of fiscal and monetary measures to sustain the needed level of aggregate demand, (4) restoration of equal bargaining power between labor and capital, (5) social investment in neglected and outmoded infrastructure, (6) accountability of corporations for decisions to shift or reduce capital investment, (7) major reductions in military spending, to be replaced by socially needed and economically productive expenditures, (8) direct public sector job creation, (9) reform of monetary policy to restore emphasis on minimizing unemployment and promoting full employment. None are without precedent in modern economies. The obstacles are ideological and political. To overcome them will require intellectual clarity and effective advocacy.

  15. System, Apparatus and Method Employing a Dual Head Laser

    Science.gov (United States)

    Coyle, Donald B. (Inventor); Stysley, Paul R. (Inventor); Poulios, Demetrios (Inventor)

    2015-01-01

    A system, apparatus and method employing a laser with a split-head, V-assembly gain material configuration. Additionally, the present invention is directed to techniques to better dissipate or remove unwanted energies in laser operations. The present invention is also directed to techniques for better collimated laser beams, with single spatial mode quality (TEM00), with improved efficiency, in extreme environments, such as in outer space.

  16. Factors Influencing Self Employment Media Service Providers ...

    African Journals Online (AJOL)

    Factors Influencing Self Employment Media Service Providers among Tertiary ... role stereotype and common business practices on media self employment in ... Sex, Psycho-social Characteristics, self Employment, Providing Media Services.

  17. 76 FR 5212 - Employment and Training Administration

    Science.gov (United States)

    2011-01-28

    ... Employment and Training Administration Comment Request for Information Collection for Internal Fraud and...: Employment and Training Administration (ETA), Department of Labor. ACTION: Notice. SUMMARY: The Department of.... Currently, the Employment and Training Administration is soliciting comments concerning the Office...

  18. 78 FR 32470 - Employment and Training Administration

    Science.gov (United States)

    2013-05-30

    ... Employment and Training Administration Investigations Regarding Eligibility To Apply for Worker Adjustment..., the Director of the Office of Trade Adjustment Assistance, Employment and Training Administration, has... Trade Adjustment Assistance, Employment and Training Administration, U.S. Department of Labor, Room...

  19. 76 FR 45621 - Employment and Training Administration

    Science.gov (United States)

    2011-07-29

    ... Employment and Training Administration Comment Request for Extension of Information Collection (Without... Temporary Employment Certification AGENCY: Employment and Training Administration. ACTION: Notice. SUMMARY... Training Administration (ETA) is soliciting comments concerning the extension of the approval for...

  20. Employment and salary characteristics of nurse practitioners.

    Science.gov (United States)

    Rogers, B; Sweeting, S; Davis, B

    1989-09-01

    Nurse practitioners provide high-quality, cost-effective care to health care consumers, yet they continue to experience low economic compensation and salary compression. The nursing literature is limited with respect to data regarding salaries, benefits and trends in compensation for nurse practitioners. In order to provide baseline data for nurse practitioners to use in negotiating compensation benefits and packages, 459 certified nurse practitioners in North Carolina were surveyed regarding demographic and employment characteristics and job satisfaction. Of the 83 percent who responded, nearly two-thirds earned less than $30,000 per year. Benefits and salary adjustment for certification are reported, and techniques for compensation negotiation are discussed. Although information obtained is specific to North Carolina, geographic similarities may be apparent.

  1. Methods for the analysis of azo dyes employed in food industry--A review.

    Science.gov (United States)

    Yamjala, Karthik; Nainar, Meyyanathan Subramania; Ramisetti, Nageswara Rao

    2016-02-01

    A wide variety of azo dyes are generally added for coloring food products not only to make them visually aesthetic but also to reinstate the original appearance lost during the production process. However, many countries in the world have banned the use of most of the azo dyes in food and their usage is highly regulated by domestic and export food supplies. The regulatory authorities and food analysts adopt highly sensitive and selective analytical methods for monitoring as well as assuring the quality and safety of food products. The present manuscript presents a comprehensive review of various analytical techniques used in the analysis of azo dyes employed in food industries of different parts of the world. A brief description on the use of different extraction methods such as liquid-liquid, solid phase and membrane extraction has also been presented.

  2. Electrolytes for Wide Operating Temperature Lithium-Ion Cells

    Science.gov (United States)

    Smart, Marshall C. (Inventor); Bugga, Ratnakumar V. (Inventor)

    2016-01-01

    Provided herein are electrolytes for lithium-ion electrochemical cells, electrochemical cells employing the electrolytes, methods of making the electrochemical cells and methods of using the electrochemical cells over a wide temperature range. Included are electrolyte compositions comprising a lithium salt, a cyclic carbonate, a non-cyclic carbonate, and a linear ester and optionally comprising one or more additives.

  3. Is education an engine for immigrants' employment outcome?

    NARCIS (Netherlands)

    A. Zorlu

    2014-01-01

    This paper assesses the role of (foreign) education in determining the adjustment profile of immigrants in employment using the Dutch Labour Force Survey and regression analysis techniques. The disadvantaged labour market position of immigrants from developing countries is often linked to their lowe

  4. Purchasing cooperatives for small employers.

    Science.gov (United States)

    Mallozzi, J

    1997-12-01

    Despite a booming economy, the number of uninsured Americans is rising. It hit nearly 42 million in 1996. Many of the uninsured work at businesses with fewer than 50 employees. Because small firms have traditionally found it difficult to provide health benefits, purchasing cooperatives have grown in scope and size across the country in recent years. By bringing small businesses together to buy insurance as a group, these organizations can help employers provide greater choice to their workers at a lower cost. However, to operate well in the insurance market, purchasing cooperatives must be well-designed and provided with adequate legal protections.

  5. INDISPENSABILITY OF ENGLISH FOR EMPLOYABILITY

    OpenAIRE

    Dr. Arun K Behera

    2013-01-01

    This paper discusses how English acts as a binding language across the world. The advent of English as a force in the third world countries is dealt with in detail, including aspects like economic and financial growth of the third world countries. Moreover, the impact of the rise in educational and awareness levels, combined with the growth in per capita income on the employability of the citizens of the third world countries has also been taken up. Growing desires of the people, coupled wit...

  6. Employability Skills, Personal Qualities, and Early Employment Problems of Entry-Level Auditors: Perspectives from Employers, Lecturers, Auditors, and Students

    Science.gov (United States)

    Lim, Yet-Mee; Lee, Teck Heang; Yap, Ching Seng; Ling, Chui Ching

    2016-01-01

    The authors examine the issue of employability of university accounting students from the perspectives of accounting firm employers, junior auditors, accounting lecturers, and accounting students. Areas of investigation include perceived importance of employability skills and desirable personal qualities; and early employment problems encountered…

  7. Employability Skills, Personal Qualities, and Early Employment Problems of Entry-Level Auditors: Perspectives from Employers, Lecturers, Auditors, and Students

    Science.gov (United States)

    Lim, Yet-Mee; Lee, Teck Heang; Yap, Ching Seng; Ling, Chui Ching

    2016-01-01

    The authors examine the issue of employability of university accounting students from the perspectives of accounting firm employers, junior auditors, accounting lecturers, and accounting students. Areas of investigation include perceived importance of employability skills and desirable personal qualities; and early employment problems encountered…

  8. System Wide Information Management (SWIM)

    Science.gov (United States)

    Hritz, Mike; McGowan, Shirley; Ramos, Cal

    2004-01-01

    This viewgraph presentation lists questions regarding the implementation of System Wide Information Management (SWIM). Some of the questions concern policy issues and strategies, technology issues and strategies, or transition issues and strategies.

  9. Contingent and Continuing Employment: Comparative National and Historical Perspectives

    DEFF Research Database (Denmark)

    Marens, Richard; Tackney, Charles T.

    This symposium focuses on the comparative impact of social institutions and labor laws on both contingent and continuing employment. Presenters will apply a wide range of analytical concepts to the history and culture of five individual nations. These concepts include a diverse set of theoretical...... approaches aimed at understanding the web of rules governing comparative industrial and employment relations around the world. The approaches include path dependence, institutional theory, historical materialism, and post-modernism. The central strength of this symposium is its comprehensive and inclusive...

  10. More of the same? The European Employment Strategy and the normalization of British employment policies

    DEFF Research Database (Denmark)

    Triantafillou, Peter

    2011-01-01

    of activation, the European Employment Strategy contributes to the legitimation of British employment policies. By addressing unemployment as a problem of structural labor market barriers, missing incentives and inadequate employability, the European Employment Strategy serves to reinforce the British...

  11. 20 CFR 655.510 - Employer attestations.

    Science.gov (United States)

    2010-04-01

    ... completed Form ETA 9033, which shall be signed by the employer (or the employer's designated agent or... address of the employer's designated agent or representative). Copies of Form ETA 9033 are available at... shall accompany the Form ETA 9033, and any underlying documentation which supports the employer's...

  12. 34 CFR 104.13 - Employment criteria.

    Science.gov (United States)

    2010-07-01

    ... 34 Education 1 2010-07-01 2010-07-01 false Employment criteria. 104.13 Section 104.13 Education Regulations of the Offices of the Department of Education OFFICE FOR CIVIL RIGHTS, DEPARTMENT OF EDUCATION... Employment Practices § 104.13 Employment criteria. (a) A recipient may not make use of any employment test...

  13. 38 CFR 21.58 - Redetermination of employment handicap and serious employment handicap.

    Science.gov (United States)

    2010-07-01

    ... employment handicap and serious employment handicap. 21.58 Section 21.58 Pensions, Bonuses, and Veterans... of employment handicap and serious employment handicap. (a) Prior to induction into a program. A determination as to employment handicap, serious employment handicap, or eligibility for a program of...

  14. Employability Skills Valued by Employers as Important for Entry-Level Employees with and without Disabilities

    Science.gov (United States)

    Ju, Song; Zhang, Dalun; Pacha, Jacqueline

    2012-01-01

    Individuals with disabilities face persistent challenges in gaining meaningful employment. One of the barriers to successful employment is a lack of employability skills. The purpose of this study was to identify employability skills that employers value as being important and to examine whether employers have different expectations for…

  15. Employability Skills Valued by Employers as Important for Entry-Level Employees with and without Disabilities

    Science.gov (United States)

    Ju, Song; Zhang, Dalun; Pacha, Jacqueline

    2012-01-01

    Individuals with disabilities face persistent challenges in gaining meaningful employment. One of the barriers to successful employment is a lack of employability skills. The purpose of this study was to identify employability skills that employers value as being important and to examine whether employers have different expectations for…

  16. Youth Employment in a Globalising World

    DEFF Research Database (Denmark)

    Gough, Katherine V.; Langevang, Thilde; Owusu, George

    2013-01-01

    and the nature of policies introduced to tackle youth (un)employment. It provides an overview of the six papers that make up this special issue and shows how highlighting the complexities and diversities of youth employment strategies in sub-Saharan Africa provides valuable lessons, both for enhancing current......Young people in the global South are seeking employment opportunities in challenging economic and social environments. This paper provides an overview of current debates regarding youth employment, highlighting conceptualisations of youth and (un)employment, emerging youth employment trends...... conceptualisations and theorisation of youth employment and in terms of related policy instruments....

  17. Optimization techniques for Transportation Problems

    Directory of Open Access Journals (Sweden)

    Gauthaman.P

    2017-06-01

    Full Text Available This paper infers about optimization technique for various problems in transportation engineering. While for pavement engineering, maintenance is priority issue, for traffic it is signalling which is priority issue. Many optimization methods are discussed though given importance of genetic algorithm approach. While optimization techniques nearly approach practicality, research works are on for modern optimization techniques which not only adds ease of structure but also provide compatibility to modern day problems encountered in transportation engineering. Some of the modern tools are discussed to employ optimization techniques which are quite simple to use and implement once it is calibrated to the desired objective.

  18. Detection Techniques of Femtosecond Lasers

    Institute of Scientific and Technical Information of China (English)

    LIU Li-peng; ZHOU Ming; DAI Qi-xun; CAI Lan

    2004-01-01

    The measurement techniques of femtosecond spectroscopy are effective method to investigate ultrafast dynamics, they are widely used in the fields of physics, chemistry and biology. In this paper, the principle, experiment setup and the approaches to deal with the experiment data were presented. Then different measurement techniques such as transient absorption spectroscopy, photon echoes, optical Kerr effect and degenerate four-wave mixing were explained with special examples. At last, the application prospect of measurement techniques of femtosecond spectroscopy was forecasted.

  19. Preferred Materials and Methods Employed for Endodontic Treatment by Iranian General Practitioners

    Science.gov (United States)

    Raoof, Maryam; Zeini, Negar; Haghani, Jahangir; Sadr, Saeedeh; Mohammadalizadeh, Sakineh

    2015-01-01

    Introduction: The aim of this study was to gather information on the materials and methods employed in root canal treatment (RCT) by general dental practitioners (GDPs) in Iran. Methods and Materials: A questionnaire was distributed among 450 dentists who attended the 53th Iranian Dental Association congress. Participants were asked to consider demographic variables and answer the questions regarding the materials and methods commonly used in RCT. Descriptive statistics were given as absolute frequencies and valid percentages. The chi-square test was used to investigate the influence of gender and the years of professional activity for the employed materials and techniques. Results: The response rate was 84.88%. The results showed that 61.5% of the participants did not perform pulp sensitivity tests prior to RCT. Less than half of the general dental practitioners (47.4%) said that they would trace a sinus tract before starting the treatment. Nearly 16% of practitioners preferred the rubber dam isolation method. Over 36% of the practitioners reported using formocresol for pulpotomy. The combined approach of working length (WL) radiographs and electronic apex locators was used by 35.2% of the practitioners. Most of the respondents used K-file hand instruments for canal preparation and the technique of choice was step-back (43.5%), while 40.1% of respondents used NiTi rotary files, mostly ProTaper and RaCe. The most widely used irrigant was normal saline (61.8%). Calcium hydroxide was the most commonly used inter appointment medicament (84.6%). The most popular obturation technique was cold lateral condensation (81.7%) with 51% using zinc oxide-eugenol-based sealers. Conclusions: The majority of Iranian GDPs who participated in the present survey do not comply with quality guidelines of endodontic treatment. PMID:25834595

  20. Wide field of view telescope

    Energy Technology Data Exchange (ETDEWEB)

    Ackermann, Mark R. (Albuquerque, NM); McGraw, John T. (Placitas, NM); Zimmer, Peter C. (Albuquerque, NM)

    2008-01-15

    A wide field of view telescope having two concave and two convex reflective surfaces, each with an aspheric surface contour, has a flat focal plane array. Each of the primary, secondary, tertiary, and quaternary reflective surfaces are rotationally symmetric about the optical axis. The combination of the reflective surfaces results in a wide field of view in the range of approximately 3.8.degree. to approximately 6.5.degree.. The length of the telescope along the optical axis is approximately equal to or less than the diameter of the largest of the reflective surfaces.

  1. The molecular genetic architecture of self-employment.

    Directory of Open Access Journals (Sweden)

    Matthijs J H M van der Loos

    Full Text Available Economic variables such as income, education, and occupation are known to affect mortality and morbidity, such as cardiovascular disease, and have also been shown to be partly heritable. However, very little is known about which genes influence economic variables, although these genes may have both a direct and an indirect effect on health. We report results from the first large-scale collaboration that studies the molecular genetic architecture of an economic variable-entrepreneurship-that was operationalized using self-employment, a widely-available proxy. Our results suggest that common SNPs when considered jointly explain about half of the narrow-sense heritability of self-employment estimated in twin data (σ(g(2/σ(P(2 = 25%, h(2 = 55%. However, a meta-analysis of genome-wide association studies across sixteen studies comprising 50,627 participants did not identify genome-wide significant SNPs. 58 SNPs with p<10(-5 were tested in a replication sample (n = 3,271, but none replicated. Furthermore, a gene-based test shows that none of the genes that were previously suggested in the literature to influence entrepreneurship reveal significant associations. Finally, SNP-based genetic scores that use results from the meta-analysis capture less than 0.2% of the variance in self-employment in an independent sample (p≥0.039. Our results are consistent with a highly polygenic molecular genetic architecture of self-employment, with many genetic variants of small effect. Although self-employment is a multi-faceted, heavily environmentally influenced, and biologically distal trait, our results are similar to those for other genetically complex and biologically more proximate outcomes, such as height, intelligence, personality, and several diseases.

  2. The Molecular Genetic Architecture of Self-Employment

    Science.gov (United States)

    van der Loos, Matthijs J. H. M.; Rietveld, Cornelius A.; Eklund, Niina; Koellinger, Philipp D.; Rivadeneira, Fernando; Abecasis, Gonçalo R.; Ankra-Badu, Georgina A.; Baumeister, Sebastian E.; Benjamin, Daniel J.; Biffar, Reiner; Blankenberg, Stefan; Boomsma, Dorret I.; Cesarini, David; Cucca, Francesco; de Geus, Eco J. C.; Dedoussis, George; Deloukas, Panos; Dimitriou, Maria; Eiriksdottir, Guðny; Eriksson, Johan; Gieger, Christian; Gudnason, Vilmundur; Höhne, Birgit; Holle, Rolf; Hottenga, Jouke-Jan; Isaacs, Aaron; Järvelin, Marjo-Riitta; Johannesson, Magnus; Kaakinen, Marika; Kähönen, Mika; Kanoni, Stavroula; Laaksonen, Maarit A.; Lahti, Jari; Launer, Lenore J.; Lehtimäki, Terho; Loitfelder, Marisa; Magnusson, Patrik K. E.; Naitza, Silvia; Oostra, Ben A.; Perola, Markus; Petrovic, Katja; Quaye, Lydia; Raitakari, Olli; Ripatti, Samuli; Scheet, Paul; Schlessinger, David; Schmidt, Carsten O.; Schmidt, Helena; Schmidt, Reinhold; Senft, Andrea; Smith, Albert V.; Spector, Timothy D.; Surakka, Ida; Svento, Rauli; Terracciano, Antonio; Tikkanen, Emmi; van Duijn, Cornelia M.; Viikari, Jorma; Völzke, Henry; Wichmann, H. -Erich; Wild, Philipp S.; Willems, Sara M.; Willemsen, Gonneke; van Rooij, Frank J. A.; Groenen, Patrick J. F.; Uitterlinden, André G.; Hofman, Albert; Thurik, A. Roy

    2013-01-01

    Economic variables such as income, education, and occupation are known to affect mortality and morbidity, such as cardiovascular disease, and have also been shown to be partly heritable. However, very little is known about which genes influence economic variables, although these genes may have both a direct and an indirect effect on health. We report results from the first large-scale collaboration that studies the molecular genetic architecture of an economic variable–entrepreneurship–that was operationalized using self-employment, a widely-available proxy. Our results suggest that common SNPs when considered jointly explain about half of the narrow-sense heritability of self-employment estimated in twin data (σg2/σP2 = 25%, h2 = 55%). However, a meta-analysis of genome-wide association studies across sixteen studies comprising 50,627 participants did not identify genome-wide significant SNPs. 58 SNPs with p<10−5 were tested in a replication sample (n = 3,271), but none replicated. Furthermore, a gene-based test shows that none of the genes that were previously suggested in the literature to influence entrepreneurship reveal significant associations. Finally, SNP-based genetic scores that use results from the meta-analysis capture less than 0.2% of the variance in self-employment in an independent sample (p≥0.039). Our results are consistent with a highly polygenic molecular genetic architecture of self-employment, with many genetic variants of small effect. Although self-employment is a multi-faceted, heavily environmentally influenced, and biologically distal trait, our results are similar to those for other genetically complex and biologically more proximate outcomes, such as height, intelligence, personality, and several diseases. PMID:23593239

  3. Multiagents-based wide area protection with best-effort adaptive strategy

    Energy Technology Data Exchange (ETDEWEB)

    Zhu, Yongli; Wang, Dewen [North China Electric Power University, Baoding (China); Song, Shaoqun [Fuzhou Electric Power Industry Bureau, Fujian Province (China)

    2009-02-15

    Abstract - Multi-trips of circuit breakers often occur within a short period in a severe blackout, and the tripping usually relates to relays' mal-operations. In fact, when two ore more electric primary devices are isolated by circuit breakers, the settings of most relays to protect their power system are getting infeasible and uncoordinated. Adaptive settings are needed to prevent them from wrong operation. This paper presents an adaptive protection scheme based on wide area information with best-effort protection strategy, and the outline of multiagents and WAN Based Adaptive Protection System (MAWAPS). In the scheme, the best-effort adaptive strategy is used to guarantee the adaptive settings to operate safely and effectively in most situations. The IP/SDH-based wide area network (WAN) is used to realize real-time wide area information exchange in the proposed protection scheme. Adaptive setting algorithms for the second stage zero-sequence current and phase overcurrent relays are proposed, which can provide larger line coverage than traditional relays. Moreover, multiagent techniques and IEC 61850 are employed to realize the fast communication between different agents, and MMS plays a prominent role in real-time remote communication. A simulating system has been developed according to the above ideas and approaches, and the experimental results show that the proposed adaptive protection scheme is feasible from the view of protective performance including the executing time. (author)

  4. Quality Qualification of the Self-Employed

    Directory of Open Access Journals (Sweden)

    Neva Maher

    1996-12-01

    Full Text Available A topical issue nowadays is how to increase direct and indirect efficiency of education of the unemployed in view of the relatively high funds available. Along with the swing of the enterprises the quality and quantity of educating and qualifying people increased. But quality does not mean only a higher level of professional knowledge. The goal is clear: to offer the self-employed functional knowledge needed. Such knowledge, offered in a suitably transformed didactic form and considering the specific situation of the unemployed should help them reach the optimal goal: find and make good use of entrepreneurial chance. In addition to the principles of the andragogic process and specific technological needs teacher plays an extremely important role in this process. Who is the one offering knowledge to the self­ employed? Who is the one explaining the economic principles of the environment and providing the leamers with knowledge at the time when they crit­ically Jack motivation? Is this a lecturer, teacher, tutor, counsellor, trainer or stimulator? The teacher has to be fully aware of the specific needs of the unemployed adults in educational process, thus he/she has to combine theoretical knowledge and practice with personal and emotional developmental stage of the participants.This it is only possible to influence the attitudes and strategies, as the quality of knowledge will take precedence over the quantity. But teachers should not be alone in their endeavours. They need to be additionally equipped with appropriate knowledge. As teaching a group of adults means total responsibility of the teacher, he/she should master the methods and techniques of recognizing the participants (their personal characteristics, their cognitive abilities. They should be able to estimate their previous knowledge and experiences as well as to evaluate and supplement their newly acquired knowledge. Relationship between participants and teachers shall be balanced

  5. Productivity and Regional Employment in Spain: A Dynamic Approach

    Directory of Open Access Journals (Sweden)

    F. Javier Escribá Pérez

    2013-01-01

    Full Text Available This paper analyses the impact of sectorial and territorial factors on the dynamics of employment in regional industries in Spain over the period 1980-2006. A dynamic panel data model is estimated using panel data techniques (System-GMM, which provide an alternative methodology for addressing the problem of variable endogeneity. The results confirm the robustness of the contemporary effects: diversification, market size and dynamics in the sector affect employment in the short term. However, effects in the long term are more uncertain.

  6. Physicochemical characterization techniques for solid lipid nanoparticles: principles and limitations.

    Science.gov (United States)

    Kathe, Niranjan; Henriksen, Brian; Chauhan, Harsh

    2014-12-01

    Solid lipid nanoparticles (SLNs) are gaining importance due to numerous advantages they offer as a drug delivery system. SLN incorporate poorly soluble drugs, proteins, biologicals, etc. SLN are prepared by techniques like high-pressure homogenization, sonication and employs a wide range of lipids and surfactants. Physicochemical characterization techniques include particle size analysis, zeta potential and determination of crystallinity/polymorphism. Furthermore, drug loading and drug entrapment efficiency are common parameters used to test the efficiency of SLN. Most importantly, the functionality assay of SLN is essential to predict the activity and performance in vivo. The review presented discusses the importance of SLN in drug delivery with emphasis on principles and limitations associated with their physicochemical characterization.

  7. Linear circuit transfer functions an introduction to fast analytical techniques

    CERN Document Server

    Basso, Christophe P

    2016-01-01

    Linear Circuit Transfer Functions: An introduction to Fast Analytical Techniques teaches readers how to determine transfer functions of linear passive and active circuits by applying Fast Analytical Circuits Techniques. Building on their existing knowledge of classical loop/nodal analysis, the book improves and expands their skills to unveil transfer functions in a swift and efficient manner. Starting with simple examples, the author explains step-by-step how expressing circuits time constants in different configurations leads to writing transfer functions in a compact and insightful way. By learning how to organize numerators and denominators in the fastest possible way, readers will speed-up analysis and predict the frequency resp nse of simple to complex circuits. In some cases, they will be able to derive the final expression by inspection, without writing a line of algebra. Key features: * Emphasizes analysis through employing time constant-based methods discussed in other text books but not widely us...

  8. Error and Bias in Determining Exposure Potential of Children at School Locations Using Proximity-Based GIS Techniques

    OpenAIRE

    Zandbergen, Paul A.; Green, Joseph W.

    2007-01-01

    Background The widespread availability of powerful tools in commercial geographic information system (GIS) software has made address geocoding a widely employed technique in spatial epidemiologic studies. Objective The objective of this study was to determine the effect of the positional error in geocoding on the analysis of exposure to traffic-related air pollution of children at school locations. Methods For a case study of Orange County, Florida, we determined the positional error of geoco...

  9. Paracetamol, widely used hardly understood

    NARCIS (Netherlands)

    C.D. van der Marel (Caroline)

    2003-01-01

    markdownabstract__Abstract__ Paracetamol (APAP), in the USA known as acetaminophen, is widely used both in hospital settings and at home for antipyresis and mild (postoperative) pain. Although APAP is available over the counter and is ranked on the third place, following nystatin and cisapride, whe

  10. World Wide Web Homepage Design.

    Science.gov (United States)

    Tillman, Michael L.

    This paper examines hypermedia design and draws conclusions about how educational research and theory applies to various aspects of World Wide Web (WWW) homepage design. "Hypermedia" is defined as any collection of information which may be textual, graphical, visual, or auditory in nature and which may be accessed via a nonlinear route.…

  11. Medication-wide association studies

    NARCIS (Netherlands)

    P.B. Ryan (Patrick); D. Madigan (David); P.E. Stang (Paul); M.J. Schuemie (Martijn); G. Hripcsak (G.)

    2013-01-01

    textabstractUndiscovered side effects of drugs can have a profound effect on the health of the nation, and electronic health-care databases offer opportunities to speed up the discovery of these side effects. We applied a "medication-wide association study" approach that combined multivariate analys

  12. The World Wide Web Revisited

    Science.gov (United States)

    Owston, Ron

    2007-01-01

    Nearly a decade ago the author wrote in one of the first widely-cited academic articles, Educational Researcher, about the educational role of the web. He argued that educators must be able to demonstrate that the web (1) can increase access to learning, (2) must not result in higher costs for learning, and (3) can lead to improved learning. These…

  13. Medication-wide association studies

    NARCIS (Netherlands)

    P.B. Ryan (Patrick); D. Madigan (David); P.E. Stang (Paul); M.J. Schuemie (Martijn); G. Hripcsak (G.)

    2013-01-01

    textabstractUndiscovered side effects of drugs can have a profound effect on the health of the nation, and electronic health-care databases offer opportunities to speed up the discovery of these side effects. We applied a "medication-wide association study" approach that combined multivariate analys

  14. World-Wide Information Networks.

    Science.gov (United States)

    Samuelson, Kjell A. H. W.

    The future paths of research and development towards world-wide, automated information networks in full operation are examined. From international networked planning and projects under way it appears that exploratory as well as normative approaches have been taken. To some extent adequate technolgical facilities have already come into existence…

  15. Employing Helicity Amplitudes for Resummation

    CERN Document Server

    Moult, Ian; Tackmann, Frank J; Waalewijn, Wouter J

    2015-01-01

    Many state-of-the-art QCD calculations for multileg processes use helicity amplitudes as their fundamental ingredients. We construct a simple and easy-to-use helicity operator basis in soft-collinear effective theory (SCET), for which the hard Wilson coefficients from matching QCD onto SCET are directly given in terms of color-ordered helicity amplitudes. Using this basis allows one to seamlessly combine fixed-order helicity amplitudes at any order they are known with a resummation of higher-order logarithmic corrections. In particular, the virtual loop amplitudes can be employed in factorization theorems to make predictions for exclusive jet cross sections without the use of numerical subtraction schemes to handle real-virtual infrared cancellations. We also discuss matching onto SCET in renormalization schemes with helicities in $4$- and $d$-dimensions. To demonstrate that our helicity operator basis is easy to use, we provide an explicit construction of the operator basis, as well as results for the hard m...

  16. Career Services Perspectives on the Use of Portfolios in the Teacher Employment Process: A Survey

    Science.gov (United States)

    Boody, Robert M.

    2009-01-01

    Portfolios are widely required in teacher education programs. One of the rationales often given for their use is their value in the employment process. The issue addressed in this study--the use of portfolios for employment--is separate from the issue of whether portfolios are useful for teacher credentialing or within a teacher education program…

  17. The Contribution of Work-Integrated Learning to Undergraduate Employability Skill Outcomes

    Science.gov (United States)

    Jackson, Denise

    2013-01-01

    WIL has attracted considerable attention as an instrument for enhancing professional practice and developing work-readiness in new graduates. It is widely considered as a point of difference in developing graduate employability by enhancing skill outcomes, such as team-work, communication, self-management and problem solving, employment prospects…

  18. Voices from the Field: Developing Employability Skills for Archaeological Students Using a Project Based Learning Approach

    Science.gov (United States)

    Wood, Gaynor

    2016-01-01

    Graduate employment statistics are receiving considerable attention in UK universities. This paper looks at how a wide range of employability attributes can be developed with students, through the innovative use of the Project Based Learning (PjBL) approach. The case study discussed here involves a group of archaeology students from the University…

  19. Flexible employment, precarious employees? Job-, employer- and institutional explanations for numerical flexibility, and its relation to precarious employment

    NARCIS (Netherlands)

    Olsthoorn, M.

    2015-01-01

    This dissertation presents a study of numerical flexibility and its relation to precarious employment in contemporary labour markets. Precarious employment is defined as the situation in which an employee has both insecure employment and insecure finances. More specifically, precarious employees are

  20. Flexible employment, precarious employees? Job-, employer- and institutional explanations for numerical flexibility, and its relation to precarious employment

    NARCIS (Netherlands)

    Olsthoorn, M.

    2015-01-01

    This dissertation presents a study of numerical flexibility and its relation to precarious employment in contemporary labour markets. Precarious employment is defined as the situation in which an employee has both insecure employment and insecure finances. More specifically, precarious employees are

  1. Measuring precarious employment in times of crisis: the revised Employment Precariousness Scale (EPRES) in Spain.

    Science.gov (United States)

    Vives, Alejandra; González, Francisca; Moncada, Salvador; Llorens, Clara; Benach, Joan

    2015-01-01

    This study examines the psychometric properties of the revised Employment Precariousness Scale (EPRES-2010) in a context of economic crisis and growing unemployment. Data correspond to salaried workers with a contract (n=4,750) from the second Psychosocial Work Environment Survey (Spain, 2010). Analyses included acceptability, scale score distributions, Cronbach's alpha coefficient and exploratory factor analysis. Response rates were 80% or above, scores were widely distributed with reductions in floor effects for temporariness among permanent workers and for vulnerability. Cronbach's alpha coefficients were 0.70 or above; exploratory factor analysis confirmed the theoretical allocation of 21 out of 22 items. The revised version of the EPRES demonstrated good metric properties and improved sensitivity to worker vulnerability and employment instability among permanent workers. Furthermore, it was sensitive to increased levels of precariousness in some dimensions despite decreases in others, demonstrating responsiveness to the context of the economic crisis affecting the Spanish labour market. Copyright © 2015 SESPAS. Published by Elsevier Espana. All rights reserved.

  2. Acquired Techniques

    DEFF Research Database (Denmark)

    Lunde Nielsen, Espen; Halse, Karianne

    2013-01-01

    Acquired Techniques - a Leap into the Archive, at Aarhus School of Architecture. In collaboration with Karianne Halse, James Martin and Mika K. Friis. Following the footsteps of past travelers this is a journey into tools and techniques of the architectural process. The workshop will focus upon...... architectural production as a conglomerate of various analogue and digital methods, and provide the basics, the tips/tricks - and how the tool themselves becomes operational for spatial/thematic investigations. Eventually, this will become a city, exhibition and phamplet inhabited by the (by...

  3. 5 CFR 315.704 - Conversion to career employment from indefinite or temporary employment.

    Science.gov (United States)

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Conversion to career employment from... MANAGEMENT CIVIL SERVICE REGULATIONS CAREER AND CAREER-CONDITIONAL EMPLOYMENT Conversion to Career or Career-Conditional Employment From Other Types of Employment § 315.704 Conversion to career employment...

  4. 78 FR 17423 - Filing Procedures for Employment Authorization and Automatic Extension of Existing Employment...

    Science.gov (United States)

    2013-03-21

    ... Employers are reminded that the laws requiring proper employment eligibility verification and prohibiting... languages. To comply with the law, employers must accept any document or combination of documents acceptable... employers may determine which EADs are automatically extended and their impact on Employment Eligibility...

  5. Employment: Labor Force Status (1983-2012)

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — Civilian labor force data consists of the number of employed persons, the number of unemployed persons, an unemployment rate and the total count of both employed and...

  6. Employment Characteristics of Indochinese Refugees: January 1979.

    Science.gov (United States)

    Bach, Robert L.

    1980-01-01

    Summarizes Immigration and Naturalization Service data on demographic characteristics and employment of Indochinese refugees. Reports that employment increases with time in the United States, and that refugee dependence on public assistance will be reduced. (ST)

  7. Employer's Perceptions of Agribusiness Placement SOE Programs.

    Science.gov (United States)

    Fletcher, Gregory W.; And Others

    1985-01-01

    Research was conducted to determine the benefits derived from agribusiness supervised occupational experience programs and to identify factors important in planning and/or conducting students' agribusiness employment experiences as perceived by employers of vocational agriculture students. (CT)

  8. SEEMP: A Networked Marketplace for Employment Services

    Science.gov (United States)

    Celino, Irene; Cerizza, Dario; Cesarini, Mirko; Valle, Emanuele Della; de Paoli, Flavio; Estublier, Jacky; Fugini, Mariagrazia; Pérez, Asuncion Gómez; Kerrigan, Mick; Guarrera, Pascal; Mezzanzanica, Mario; Ramìrez, Jaime; Villazon, Boris; Zhao, Gang

    Human capital is more and more the key factor of economic growth and competitiveness in the information age and knowledge economy. But due to a still fragmented employment market compounded by the enlargement of the EU, the human resources are not effectively exchanged and deployed. The business innovation of SEEMP1 develops a vision of an Employment Mediation Marketplace (EMM) for market transparency and effic ient mediation. Its technological innovation provides a federated marketplace of employment agencies through a peer-to-peer network of employment data and mediation services. In other words, the solution under development is a de-fragmentation of the employment market by a web-based collaborative network. The SEEMP-enabled employment marketplace will strengthen the social organization of public employment administration, maximize the business turnover of private employment agencies, improve citizens' productivity and welfare, and increase the competitiveness and performance of business.

  9. Cache Energy Optimization Techniques For Modern Processors

    Energy Technology Data Exchange (ETDEWEB)

    Mittal, Sparsh [ORNL

    2013-01-01

    Modern multicore processors are employing large last-level caches, for example Intel's E7-8800 processor uses 24MB L3 cache. Further, with each CMOS technology generation, leakage energy has been dramatically increasing and hence, leakage energy is expected to become a major source of energy dissipation, especially in last-level caches (LLCs). The conventional schemes of cache energy saving either aim at saving dynamic energy or are based on properties specific to first-level caches, and thus these schemes have limited utility for last-level caches. Further, several other techniques require offline profiling or per-application tuning and hence are not suitable for product systems. In this book, we present novel cache leakage energy saving schemes for single-core and multicore systems; desktop, QoS, real-time and server systems. Also, we present cache energy saving techniques for caches designed with both conventional SRAM devices and emerging non-volatile devices such as STT-RAM (spin-torque transfer RAM). We present software-controlled, hardware-assisted techniques which use dynamic cache reconfiguration to configure the cache to the most energy efficient configuration while keeping the performance loss bounded. To profile and test a large number of potential configurations, we utilize low-overhead, micro-architecture components, which can be easily integrated into modern processor chips. We adopt a system-wide approach to save energy to ensure that cache reconfiguration does not increase energy consumption of other components of the processor. We have compared our techniques with state-of-the-art techniques and have found that our techniques outperform them in terms of energy efficiency and other relevant metrics. The techniques presented in this book have important applications in improving energy-efficiency of higher-end embedded, desktop, QoS, real-time, server processors and multitasking systems. This book is intended to be a valuable guide for both

  10. Practical hacking techniques and countermeasures

    CERN Document Server

    Spivey, Mark D

    2006-01-01

    Examining computer security from the hacker''s perspective, Practical Hacking Techniques and Countermeasures employs virtual computers to illustrate how an attack is executed, including the script, compilation, and results. It provides detailed screen shots in each lab for the reader to follow along in a step-by-step process in order to duplicate and understand how the attack works. It enables experimenting with hacking techniques without fear of corrupting computers or violating any laws.Written in a lab manual style, the book begins with the installation of the VMware® Workstation product and guides the users through detailed hacking labs enabling them to experience what a hacker actually does during an attack. It covers social engineering techniques, footprinting techniques, and scanning tools. Later chapters examine spoofing techniques, sniffing techniques, password cracking, and attack tools. Identifying wireless attacks, the book also explores Trojans, Man-in-the-Middle (MTM) attacks, and Denial of S...

  11. Demonstration of the Wide-Field Imaging Interferometer Testbed Using a Calibrated Hyperspectral Image Projector

    Science.gov (United States)

    Bolcar, Matthew R.; Leisawitz, David; Maher, Steve; Rinehart, Stephen

    2012-01-01

    The Wide-field Imaging Interferometer testbed (WIIT) at NASA's Goddard Space Flight Center uses a dual-Michelson interferometric technique. The WIIT combines stellar interferometry with Fourier-transform interferometry to produce high-resolution spatial-spectral data over a large field-of-view. This combined technique could be employed on future NASA missions such as the Space Infrared Interferometric Telescope (SPIRIT) and the Sub-millimeter Probe of the Evolution of Cosmic Structure (SPECS). While both SPIRIT and SPECS would operate at far-infrared wavelengths, the WIIT demonstrates the dual-interferometry technique at visible wavelengths. The WIIT will produce hyperspectral image data, so a true hyperspectral object is necessary. A calibrated hyperspectral image projector (CHIP) has been constructed to provide such an object. The CHIP uses Digital Light Processing (DLP) technology to produce customized, spectrally-diverse scenes. CHIP scenes will have approximately 1.6-micron spatial resolution and the capability of . producing arbitrary spectra in the band between 380 nm and 1.6 microns, with approximately 5-nm spectral resolution. Each pixel in the scene can take on a unique spectrum. Spectral calibration is achieved with an onboard fiber-coupled spectrometer. In this paper we describe the operation of the CHIP. Results from the WIIT observations of CHIP scenes will also be presented.

  12. Flexible Employment Arrangements and Workplace Performance

    OpenAIRE

    GIOVANIS, Eleftherios

    2016-01-01

    There is an increasing concern on the quality of jobs and productivity that is witnessed in the flexible employment arrangements. However, the effects of the employment flexible types on workplace performance has not been explored in Britain. In this study the relationship between two employment arrangements and the workplace performance is examined. More specifically, teleworking and compress hours are two main employment types examined using the Workplace Employee R...

  13. Strategies to improve English major graduates’ employability

    Institute of Scientific and Technical Information of China (English)

    Zhou; Qi

    2012-01-01

    Universities’strategies to improve English major graduates’s employability are as follows:update teaching concept,optimize the arrangement of majors, improve teaching methods and increase educational efficiency, strengthen career guidance, ect. Students should improve their employability through making career planning,renewing employment idea and change employment psychology,enhance their own core competitive ness as well as grasp job-hunting skills,ect.

  14. Translation Techniques

    Directory of Open Access Journals (Sweden)

    Marcia Pinheiro

    2015-05-01

    Full Text Available In this paper, we discuss three translation techniques: literal, cultural, and artistic. Literal translation is a well-known technique, which means that it is quite easy to find sources on the topic. Cultural and artistic translation may be new terms. Whilst cultural translation focuses on matching contexts, artistic translation focuses on matching reactions. Because literal translation matches only words, it is not hard to find situations in which we should not use this technique.  Because artistic translation focuses on reactions, judging the quality of an artistic translation work is one of the most difficult things one can do. We end up having a score of complexity and humanity for each one of the mentioned techniques: Literal translation would be the closest thing we have to the machines world and artistic translation would be the closest thing we have to the purely human world. By creating these classifications and studying the subtleties of each one of them, we are adding degrees of quality to our courses and to translation as a professional field. The main contribution of this paper is then the formalization of such a piece of knowledge. We, however, also lay the foundations for studies of this type.

  15. Experimental Techniques

    CERN Document Server

    Engelfried, J

    1999-01-01

    In this course we will give examples for experimental techniques used in particle physics experiments. After a short introduction, we will discuss applications in silicon microstrip detectors, wire chambers, and single photon detection in Ring Imaging Cherenkov (RICH) counters. A short discussion of the relevant physics processes, mainly different forms of energy loss in matter, is enclosed.

  16. The LOFT wide field monitor

    DEFF Research Database (Denmark)

    Brandt, Søren; Hernanz, M.; Alvarez, L.

    2012-01-01

    class large area detector (LAD) with a field of view and a wide field monitor (WFM) instrument based on the coded mask principle, providing coverage of more than 1/3 of the sky. The LAD will provide an effective area ~20 times larger than any previous mission and will by timing studies...... be able to address fundamental questions about strong gravity in the vicinity of black holes and the equation of state of nuclear matter in neutron stars. The prime goal of the WFM will be to detect transient sources to be observed by the LAD. However, with its wide field of view and good energy...... resolution of field of the Galactic Center. The high duty...

  17. Wide Bandgap Extrinsic Photoconductive Switches

    Energy Technology Data Exchange (ETDEWEB)

    Sullivan, James S. [State Univ. of New York (SUNY), Plattsburgh, NY (United States); Univ. of California, Davis, CA (United States)

    2012-01-20

    Photoconductive semiconductor switches (PCSS) have been investigated since the late 1970s. Some devices have been developed that withstand tens of kilovolts and others that switch hundreds of amperes. However, no single device has been developed that can reliably withstand both high voltage and switch high current. Yet, photoconductive switches still hold the promise of reliable high voltage and high current operation with subnanosecond risetimes. Particularly since good quality, bulk, single crystal, wide bandgap semiconductor materials have recently become available. In this chapter we will review the basic operation of PCSS devices, status of PCSS devices and properties of the wide bandgap semiconductors 4H-SiC, 6H-SiC and 2H-GaN.

  18. Digital Survey Techniques for the Documentation of Wooden Shipwrecks

    Science.gov (United States)

    Costa, E.; Balletti, C.; Beltrame, C.; Guerra, F.; Vernier, P.

    2016-06-01

    Nowadays, researchers widely employ the acquisition of point clouds as one of the principal type of documentation for cultural heritage. In this paper, different digital survey techniques are employed to document a wooden ancient shipwreck, a particular and difficult kind of archaeological finding due to its material characteristics. The instability of wood and the high costs of restoration do not always offer the opportunity of recovering and showing the hull to researchers and public and three-dimensional surveys are fundamental to document the original conditions of the wood. The precarious conditions of this material in contact with air could modify the structure and the size of the boat, requiring a fast and accurate recording technique. The collaboration between Ca' Foscari University and the Laboratory of Photogrammetry of Iuav University of Venice has given the possibility to demonstrate the utility of these technology. We have surveyed a sewn boat of Roman age through multi-image photogrammetry and laser scanner. Point clouds were compared and a residual analysis was done, to verify the characteristics and the opportunity of the two techniques, both of them have allowed obtaining a very precise documentation from a metrical point of view.

  19. Wide and High Additive Manufacturing

    Energy Technology Data Exchange (ETDEWEB)

    Post, Brian K. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Roschli, Alex C. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2017-03-01

    The goal of this project is to develop and demonstrate the enabling technologies for Wide and High Additive Manufacturing (WHAM). WHAM will open up new areas of U.S. manufacturing for very large tooling in support of the transportation and energy industries, significantly reducing cost and lead time. As with Big Area Additive Manufacturing (BAAM), the initial focus is on the deposition of composite materials.

  20. Employer strategies to combat health care plan fraud.

    Science.gov (United States)

    Pflaum, B B; Rivers, J S

    1991-01-01

    Each year health care fraud drains millions of dollars from employer-sponsored health plans. Historically, employers have taken a rather tolerant view of fraud. As the pressure to manage health plan costs increases, however, many employers are beginning to see the detection and prosecution of fraud as an appropriate part of a cost management program. Fraud in medical insurance covers a wide range of activities in terms of cost and sophistication--from misrepresenting information on a claim, to billing for services never rendered, to falsifying the existence of an entire medical organization. To complicate matters, fraudulent activities can emanate from many, many sources. Perpetrators can include employees, dependents or associates of employees, providers and employees of providers--virtually anyone able to make a claim against a plan. This article addresses actions that employers can take to reduce losses from fraud. The first section suggests policy statements and administrative procedures and guidelines that can be used to discourage employee fraud. Section two addresses the most prevalent form of fraud--provider fraud. To combat provider fraud, employers should set corporate guidelines and should enlist the assistance of employees in identifying fraudulent provider activities. Section three suggests ways to improve fraud detection through the claims payment system--often the first line of defense against fraud. Finally, section four discusses the possibility of civil and criminal remedies and reviews the legal theories under which an increasing number of fraud cases have been prosecuted.

  1. Exoplanet Detection Techniques

    CERN Document Server

    Fischer, Debra A; Laughlin, Greg P; Macintosh, Bruce; Mahadevan, Suvrath; Sahlmann, Johannes; Yee, Jennifer C

    2015-01-01

    We are still in the early days of exoplanet discovery. Astronomers are beginning to model the atmospheres and interiors of exoplanets and have developed a deeper understanding of processes of planet formation and evolution. However, we have yet to map out the full complexity of multi-planet architectures or to detect Earth analogues around nearby stars. Reaching these ambitious goals will require further improvements in instrumentation and new analysis tools. In this chapter, we provide an overview of five observational techniques that are currently employed in the detection of exoplanets: optical and IR Doppler measurements, transit photometry, direct imaging, microlensing, and astrometry. We provide a basic description of how each of these techniques works and discuss forefront developments that will result in new discoveries. We also highlight the observational limitations and synergies of each method and their connections to future space missions.

  2. Dynamical Evolution of Wide Binaries

    Directory of Open Access Journals (Sweden)

    Esmeralda H. Mallada

    2001-01-01

    Full Text Available We simulate numerically encounters of wide binaries with field stars and Giant Molecular Clouds (GMCs by means of the impulse approximation. We analyze the time evolution of the distributions of eccentricities and semimajor axes of wide binaries with given initial conditions, at intervals of 109 yr, up to 1010 yr (assumed age of the Galaxy. We compute the fraction of surviving binaries for stellar encounters, for GMC encounters and for a combination of both, and hence, the dynamical lifetime for different semimajor axes and different masses of binaries (0.5, 1, 1.2, 1.5, 2.5, and 3 Msolar. We find that the dynamical lifetime of wide binaries considering only GMCs is half than that considering only stars. For encounters with GMCs we analyze the influence of the initial inclination of the orbital plane of the binary with respect to the plane perpendicular to the relative velocity vector of the binary and the GMC. We find that the perturbation is maximum when the angle is minimum.

  3. Wide Bandgap Extrinsic Photoconductive Switches

    Energy Technology Data Exchange (ETDEWEB)

    Sullivan, James S. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2013-07-03

    Semi-insulating Gallium Nitride, 4H and 6H Silicon Carbide are attractive materials for compact, high voltage, extrinsic, photoconductive switches due to their wide bandgap, high dark resistance, high critical electric field strength and high electron saturation velocity. These wide bandgap semiconductors are made semi-insulating by the addition of vanadium (4H and 6HSiC) and iron (2H-GaN) impurities that form deep acceptors. These deep acceptors trap electrons donated from shallow donor impurities. The electrons can be optically excited from these deep acceptor levels into the conduction band to transition the wide bandgap semiconductor materials from a semi-insulating to a conducting state. Extrinsic photoconductive switches with opposing electrodes have been constructed using vanadium compensated 6H-SiC and iron compensated 2H-GaN. These extrinsic photoconductive switches were tested at high voltage and high power to determine if they could be successfully used as the closing switch in compact medical accelerators.

  4. Does self-employment reduce unemployment?

    NARCIS (Netherlands)

    Thurik, A.R.; Carree, M.A.; van Stel, A.; Audretsch, D.B.

    2008-01-01

    This paper investigates the dynamic relationship between self-employment and unemployment rates. On the one hand, high unemployment rates may lead to start-up activity of self-employed individuals (the "refugee" effect). On the other hand, higher rates of self-employment may indicate increased entre

  5. Offshoring and Changes in Firms’ Domestic Employment

    DEFF Research Database (Denmark)

    Timmermans, Bram; Østergaard, Christian Richter

    2014-01-01

    In this study, we investigate the difference in changes in employment between offshoring and non-offshoring firms that are active in manufacturing industries and business services in Denmark. We measure the mean difference on a set of employment characteristics, i.e. employment growth, growth in ...

  6. 45 CFR 1151.33 - Employment criteria.

    Science.gov (United States)

    2010-10-01

    ... sensory, manual, or speaking skills, the test results accurately reflect the applicant's or employee's job... HUMANITIES NATIONAL ENDOWMENT FOR THE ARTS NONDISCRIMINATION ON THE BASIS OF HANDICAP Discrimination Prohibited Employment § 1151.33 Employment criteria. (a) A recipient may not make use of any employment...

  7. 29 CFR 801.8 - Employment relationship.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Employment relationship. 801.8 Section 801.8 Labor... OF THE EMPLOYEE POLYGRAPH PROTECTION ACT OF 1988 General § 801.8 Employment relationship. (a) EPPA... employer in relationship to an employee or prospective employee” (EPPA section 2(2)). (b) EPPA restrictions...

  8. 7 CFR 15a.51 - Employment.

    Science.gov (United States)

    2010-01-01

    ... FEDERAL FINANCIAL ASSISTANCE Discrimination on the Basis of Sex in Employment in Education Programs and...) A recipient shall make all employment decisions in any education program or activity operated by... 7 Agriculture 1 2010-01-01 2010-01-01 false Employment. 15a.51 Section 15a.51 Agriculture...

  9. 14 CFR 1253.505 - Employment criteria.

    Science.gov (United States)

    2010-01-01

    ... OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE Discrimination on the Basis of Sex in Employment in Education Programs or Activities Prohibited § 1253.505 Employment... 14 Aeronautics and Space 5 2010-01-01 2010-01-01 false Employment criteria. 1253.505 Section...

  10. 22 CFR 146.505 - Employment criteria.

    Science.gov (United States)

    2010-04-01

    ... Employment in Education Programs or Activities Prohibited § 146.505 Employment criteria. A recipient shall... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Employment criteria. 146.505 Section 146.505 Foreign Relations DEPARTMENT OF STATE CIVIL RIGHTS NONDISCRIMINATION ON THE BASIS OF SEX IN...

  11. 22 CFR 229.505 - Employment criteria.

    Science.gov (United States)

    2010-04-01

    ... Employment in Education Programs or Activities Prohibited § 229.505 Employment criteria. A recipient shall... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Employment criteria. 229.505 Section 229.505 Foreign Relations AGENCY FOR INTERNATIONAL DEVELOPMENT NONDISCRIMINATION ON THE BASIS OF SEX IN...

  12. 28 CFR 54.505 - Employment criteria.

    Science.gov (United States)

    2010-07-01

    ... EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE Discrimination on the Basis of Sex in Employment in Education Programs or Activities Prohibited § 54.505 Employment criteria. A... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Employment criteria. 54.505 Section...

  13. 40 CFR 5.505 - Employment criteria.

    Science.gov (United States)

    2010-07-01

    ... OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE Discrimination on the Basis of Sex in Employment in Education Programs or Activities Prohibited § 5.505 Employment... 40 Protection of Environment 1 2010-07-01 2010-07-01 false Employment criteria. 5.505 Section...

  14. 75 FR 43615 - Program Integrity: Gainful Employment

    Science.gov (United States)

    2010-07-26

    ... Education 34 CFR Part 668 Program Integrity: Gainful Employment; Proposed Rule #0;#0;Federal Register / Vol... RIN 1840-AD04 Program Integrity: Gainful Employment AGENCY: Office of Postsecondary Education... against the education and training (and increased employment income) that higher education can provide....

  15. 24 CFR 8.12 - Employment criteria.

    Science.gov (United States)

    2010-04-01

    ... applicant's or employee's job skills, aptitude, or whatever other factor the test purports to measure... URBAN DEVELOPMENT Employment § 8.12 Employment criteria. (a) A recipient may not use any employment test... any class of individuals with handicaps unless: (1) The recipient demonstrates that the test score...

  16. 45 CFR 400.154 - Employability services.

    Science.gov (United States)

    2010-10-01

    ...) Employability assessment services, including aptitude and skills testing. (c) On-the job training, when such... driver education and training when provided as part of an individual employability plan. (f) Skills... 45 Public Welfare 2 2010-10-01 2010-10-01 false Employability services. 400.154 Section 400.154...

  17. Employment of Handicapped People in Leisure Occupations.

    Science.gov (United States)

    Compton, David M.; Vinton, Dennis A.

    In response to the need for up-to-date information on employment opportunities for handicapped people in the leisure occupations, a national survey was conducted to determine both existing levels of employment and employer practices. The survey was sent to 500 agencies and businesses representing four leisure occupational subclusters: travel,…

  18. Offshoring and Changes in Firms’ Domestic Employment

    DEFF Research Database (Denmark)

    Timmermans, Bram; Østergaard, Christian Richter

    2014-01-01

    In this study, we investigate the difference in changes in employment between offshoring and non-offshoring firms that are active in manufacturing industries and business services in Denmark. We measure the mean difference on a set of employment characteristics, i.e. employment growth, growth in ...

  19. Measurement of neutron excitation functions using wide energy neutron beams

    Energy Technology Data Exchange (ETDEWEB)

    Loevestam, Goeran [EC-JRC-Institute for Reference Materials and Measurements (IRMM), Retieseweg 111, B-2440 Geel (Belgium)], E-mail: goeran.loevestam@ec.europa.eu; Hult, Mikael; Fessler, Andreas; Gamboni, Thierry; Gasparro, Joel; Geerts, Wouter; Jaime, Ricardo; Lindahl, Patric; Oberstedt, Stephan [EC-JRC-Institute for Reference Materials and Measurements (IRMM), Retieseweg 111, B-2440 Geel (Belgium); Tagziria, Hamid [EC-JRC-Institute for the Protection and the Security of the Citizen (IPSC), Via E. Fermi 1, I-21020 Ispra (Italy)

    2007-10-11

    A technique for measuring neutron excitation functions using wide energy neutron beams is explored. Samples are activated with a set of neutron fields, each covering a relatively wide energy interval and created using an ion accelerator and conventional nuclear reactions. Measured activities are determined using gamma-ray spectrometry and reduced to excitation curves using spectrum unfolding. The technique is demonstrated on the measurement of the excitation function curve up to 5.6 MeV for {sup 113}In(n,n'){sup 113}In{sup m} using the {sup 115}In(n,n'){sup 115}In{sup m} reaction as an internal standard.

  20. Sound Employment in the Adapted Movie-Daisy Miller

    Institute of Scientific and Technical Information of China (English)

    钦白兰

    2009-01-01

    Daisy Miller is a 1974 Ameriean drama movie directed by Peter Bogdanovich.It iS an adaptation of the Henry James‘novella of the same name.The movie,conmimng many symbolic cinematic techniques,iS about a beautiful young American girl died of"Roman fever"in Europe.This paper is devoted to the cinematic sound employment in the movie-Daisy Miller,with a purpose to show how the movie employs different sounds,difierent from the novella.to activate its theme.From the cinematic sound perspective,the paper claims that as all adapted movie,cinematic sound employment deeps the thematic realization,subtly intriguing with James,for the audience.

  1. Intensity techniques

    DEFF Research Database (Denmark)

    Jacobsen, Finn

    2008-01-01

    The Handbook of Signal Processing in Acoustics will compile the techniques and applications of signal processing as they are used in the many varied areas of Acoustics. The Handbook will emphasize the interdisciplinary nature of signal processing in acoustics. Each Section of the Handbook...... will present topics on signal processing which are important in a specific area of acoustics. These will be of interest to specialists in these areas because they will be presented from their technical perspective, rather than a generic engineering approach to signal processing. Non-specialists, or specialists...... from different areas, will find the self-contained chapters accessible and will be interested in the similarities and differences between the approaches and techniques used in different areas of acoustics....

  2. New techniques to characterise the vaginal microbiome in pregnancy

    Directory of Open Access Journals (Sweden)

    Nadeem O. Kaakoush

    2016-03-01

    Full Text Available Understanding of the vaginal microbiome in health and disease is essential to screen, detect and manage complications in pregnancy. One of the major complications of pregnancy is preterm birth, which is the leading world-wide cause of death and disability in children under five years of age. The aetiology of preterm birth is multifactorial, but a causal link has been established with infection. Despite the importance of understanding the vaginal microbiome in pregnancy in order to evaluate strategies to prevent and manage PTB, currently used culture based techniques provide limited information as not all pathogens are able to be cultured.The implementation of culture-independent high-throughput techniques and bioinformatics tools are advancing our understanding of the vaginal microbiome. New methods employing 16S rRNA and metagenomics analyses make possible a more comprehensive description of the bacteria of the human microbiome. Several studies on the vaginal microbiota of pregnant women have identified a large number of taxa. Studies also suggest reduced diversity of the microbiota in pregnancy compared to non-pregnant women, with a relative enrichment of the overall abundance of Lactobacillus species, and significant differences in the diversity of Lactobacillus spp. A number of advantages and disadvantages of these techniques are discussed briefly. The potential clinical importance of the new techniques is illustrated through recent reports where traditional culture-based techniques failed to identify pathogens in high risk complicated pregnancies whose presence subsequently was established using culture-independent, high-throughput analyses.

  3. Wide-angle energy-momentum spectroscopy

    CERN Document Server

    Dodson, Christopher M; Li, Dongfang; Zia, Rashid

    2014-01-01

    Light emission is defined by its distribution in energy, momentum, and polarization. Here, we demonstrate a method that resolves these distributions by means of wide-angle energy-momentum spectroscopy. Specifically, we image the back focal plane of a microscope objective through a Wollaston prism to obtain polarized Fourier-space momentum distributions, and disperse these two-dimensional radiation patterns through an imaging spectrograph without an entrance slit. The resulting measurements represent a convolution of individual radiation patterns at adjacent wavelengths, which can be readily deconvolved using any well-defined basis for light emission. As an illustrative example, we use this technique with the multipole basis to quantify the intrinsic emission rates for electric and magnetic dipole transitions in europium-doped yttrium oxide (Eu$^{3+}$:Y$_{2}$O$_{3}$) and chromium-doped magnesium oxide (Cr$^{3+}$:MgO). Once extracted, these rates allow us to reconstruct the full, polarized, two-dimensional radi...

  4. Electrochemical Techniques

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Gang; Lin, Yuehe

    2008-07-20

    Sensitive and selective detection techniques are of crucial importance for capillary electrophoresis (CE), microfluidic chips, and other microfluidic systems. Electrochemical detectors have attracted considerable interest for microfluidic systems with features that include high sensitivity, inherent miniaturization of both the detection and control instrumentation, low cost and power demands, and high compatibility with microfabrication technology. The commonly used electrochemical detectors can be classified into three general modes: conductimetry, potentiometry, and amperometry.

  5. Vírus da leucemia felina: análise da classificação da infecção, das técnicas de diagnóstico e da eficácia da vacinação com o emprego de técnicas sensíveis de detecção viral Feline leukemia virus: infection outcomes, diagnostic techniques and vaccine efficacy analysis employing sensitive techniques of virus detection

    Directory of Open Access Journals (Sweden)

    Andreza Soriano Figueiredo

    2011-11-01

    Full Text Available O Vírus da leucemia felina (FeLV pertence à família Retroviridae, gênero Gammaretrovirus. Diferentemente de outras retroviroses, uma parcela dos gatos jovens e adultos exposta ao FeLV não apresenta antigenemia/viremia, de acordo com as técnicas convencionais de detecção viral, como isolamento em cultivo celular, imunofluorescência direta e ELISA. O emprego de técnicas de maior sensibilidade para detecção e quantificação viral, como o PCR quantitativo, permitiu a identificação de animais positivos para a presença de DNA proviral e RNA na ausência de antigenemia/viremia e, com isso, um refinamento da análise das diferentes evoluções da infecção. Assim, reclassificou-se a patogenia do FeLV em 4 categorias: infecção abortiva, regressiva, latente e progressiva. Foi possível também detectar DNA proviral e RNA em animais considerados imunes ao FeLV após vacinação. Diante disso, os objetivos desta revisão de literatura foram demonstrar as implicações da utilização de técnicas sensíveis de detecção viral na interpretação e classificação da infecção do FeLV e rever as técnicas de detecção do vírus para fins de diagnóstico. Além disso, apresentar os resultados referentes à eficácia da vacinação contra o FeLV com a utilização dessas técnicas.Feline leukemia virus (FeLV belongs to the Retroviridae family, genus Gammaretrovirus. Unlike other retroviruses, a portion of FeLV exposed animals eliminates antigenemia/viremia, according to convectional techniques of virus detection, such as isolation in cell culture, direct fluorescent antibody test and ELISA. The use of more sensitive techniques to detect and quantify viruses enabled the detection of proviral DNA and RNA in cats with undetectable antigenemia/viremia, and thus the refinement of the different infection outcomes analysis. As a result, FeLV pathogenesis was reclassified in 4 categories: abortive, regressive, latent and progressive infections. It

  6. Spectroscopic subsystems in nearby wide binaries

    CERN Document Server

    Tokovinin, Andrei

    2015-01-01

    Radial velocity (RV) monitoring of solar-type visual binaries has been conducted at the CTIO/SMARTS 1.5-m telescope to study short-period systems. Data reduction is described, mean and individual RVs of 163 observed objects are given. New spectroscopic binaries are discovered or suspected in 17 objects, for some of them orbital periods could be determined. Subsystems are efficiently detected even in a single observation by double lines and/or by the RV difference between the components of visual binaries. The potential of this detection technique is quantified by simulation and used for statistical assessment of 96 wide binaries within 67pc. It is found that 43 binaries contain at least one subsystem and the occurrence of subsystems is equally probable in either primary or secondary components. The frequency of subsystems and their periods match the simple prescription proposed by the author (2014, AJ, 147, 87). The remaining 53 simple wide binaries with a median projected separation of 1300AU have the distri...

  7. Profiling genome-wide DNA methylation.

    Science.gov (United States)

    Yong, Wai-Shin; Hsu, Fei-Man; Chen, Pao-Yang

    2016-01-01

    DNA methylation is an epigenetic modification that plays an important role in regulating gene expression and therefore a broad range of biological processes and diseases. DNA methylation is tissue-specific, dynamic, sequence-context-dependent and trans-generationally heritable, and these complex patterns of methylation highlight the significance of profiling DNA methylation to answer biological questions. In this review, we surveyed major methylation assays, along with comparisons and biological examples, to provide an overview of DNA methylation profiling techniques. The advances in microarray and sequencing technologies make genome-wide profiling possible at a single-nucleotide or even a single-cell resolution. These profiling approaches vary in many aspects, such as DNA input, resolution, genomic region coverage, and bioinformatics analysis, and selecting a feasible method requires knowledge of these methods. We first introduce the biological background of DNA methylation and its pattern in plants, animals and fungi. We present an overview of major experimental approaches to profiling genome-wide DNA methylation and hydroxymethylation and then extend to the single-cell methylome. To evaluate these methods, we outline their strengths and weaknesses and perform comparisons across the different platforms. Due to the increasing need to compute high-throughput epigenomic data, we interrogate the computational pipeline for bisulfite sequencing data and also discuss the concept of identifying differentially methylated regions (DMRs). This review summarizes the experimental and computational concepts for profiling genome-wide DNA methylation, followed by biological examples. Overall, this review provides researchers useful guidance for the selection of a profiling method suited to specific research questions.

  8. Eccentricity distribution of wide binaries

    CERN Document Server

    Tokovinin, Andrei

    2015-01-01

    A sample of 477 solar-type binaries within 67pc with projected separations larger than 50AU is studied by a new statistical method. Speed and direction of the relative motion are determined from the short observed arcs or known orbits, and their joint distribution is compared to the numerical simulations. By inverting the observed distribution with the help of simulations, we find that average eccentricity of wide binaries is 0.59+-0.02 and the eccentricity distribution can be modeled as f(e) ~= 1.2 e + 0.4. However, wide binaries containing inner subsystems, i.e. triple or higher-order multiples, have significantly smaller eccentricities with the average e = 0.52+-0.05 and the peak at e ~ 0.5. We find that the catalog of visual orbits is strongly biased against large eccentricities. A marginal evidence of eccentricity increasing with separation (or period) is found for this sample. Comparison with spectroscopic binaries proves the reality of the controversial period-eccentricity relation. The average eccentr...

  9. The LOFT Wide Field Monitor

    CERN Document Server

    Brandt, S; Alvarez, L; Azzarello, P; Barret, D; Bozzo, E; Budtz-Jørgensen,; Campana, R; del Monte, E; Donnarumma, I; Evangelista, Y; Feroci, M; Sanchez, J L Galvez; Götz, D; Hansen, F; Herder, J W den; Hudec, R; Huovelin, J; Karelin, D; Korpela, S; Lund, N; Orleanski, P; Pohl, M; Rachevski, A; Santangelo, A; Schanne, S; Schmid, C; Suchy, S; Tenzer, C; Vacchi, A; Wilms, J; Zampa, G; Zampa, N; Zand, J in't; Zdziarski, A

    2012-01-01

    LOFT (Large Observatory For x-ray Timing) is one of the four missions selected in 2011 for assessment study for the ESA M3 mission in the Cosmic Vision program, expected to be launched in 2024. The LOFT mission will carry two instruments with their prime sensitivity in the 2-30 keV range: a 10 m^2 class large area detector (LAD) with a <1{\\deg} collimated field of view and a wide field monitor (WFM) instrument based on the coded mask principle, providing coverage of more than 1/3 of the sky. The LAD will provide an effective area ~20 times larger than any previous mission and will by timing studies be able to address fundamental questions about strong gravity in the vicinity of black holes and the equation of state of nuclear matter in neutron stars. The prime goal of the WFM will be to detect transient sources to be observed by the LAD. However, with its wide field of view and good energy resolution of <300 eV, the WFM will be an excellent monitoring instrument to study long term variability of many cl...

  10. Comparison of destructive and nondestructive sampling techniques of retail chicken carcasses for enumeration of hygiene indicator microorganisms.

    Science.gov (United States)

    Cossi, Marcus Vinícius Coutinho; de Almeida, Michelle Vieira; Dias, Mariane Rezende; de Arruda Pinto, Paulo Sérgiode; Nero, Luís Augusto

    2012-01-01

    The type of sampling technique used to obtain food samples is fundamental to the success of microbiological analysis. Destructive and nondestructive techniques, such as tissue excision and rinsing, respectively, are widely employed in obtaining samples from chicken carcasses. In this study, four sampling techniques used for chicken carcasses were compared to evaluate their performances in the enumeration of hygiene indicator microorganisms. Sixty fresh chicken carcasses were sampled by rinsing, tissue excision, superficial swabbing, and skin excision. All samples were submitted for enumeration of mesophilic aerobes, Enterobacteriaceae, coliforms, and Escherichia coli. The results were compared to determine the statistical significance of differences and correlation (P sampling techniques evaluated for most of the hygiene indicators. Despite presenting a higher recovery ability, tissue excision did not present significant differences for microorganism enumeration compared with other nondestructive techniques, such as rinsing, indicating its adequacy for microbiological analysis of chicken carcasses.

  11. MRX measurement setup employing a directly-coupled high-T{sub c} SQUID with slotted pickup loop

    Energy Technology Data Exchange (ETDEWEB)

    Guillaume, Alexander; Ludwig, Frank; Scholtyssek, Jan M.; Schilling, Meinhard [Institut fuer Elektrische Messtechnik und Grundlagen der Elektrotechnik, Technische Universitaet Braunschweig, Hans-Sommer-Str. 66, D-38106 Braunschweig (Germany)

    2013-07-01

    Magnetic nanoparticles (MNP) are employed in a wide range of medical and industrial applications. Besides other characterization techniques, magnetorelaxometry (MRX) is well established. In our MRX setup, we employ a directly-coupled high-T{sub c} SQUID with a slotted pickup loop as magnetic field sensor. The whole setup is installed in a magnetically shielded room. The MNP sample, which is attached to a glass dipstick containing the SQUID, is magnetized by a pair of Helmholtz-coils. In order to prevent flux vortices from entering the SQUID, the sensor is aligned parallel to the magnetizing field so that only the stray field of the MNP is measured. The aligning process is accomplished by using three alignment screws. Hence, the SQUID only measures 1 ppm of the magnetizing field which is in the order of several mT. Since the magnetic nanoparticles are placed in liquid nitrogen, the relaxation time constant increases in comparison to a measurement of the particles at room temperature allowing to investigate particle sizes down to 10 nm. Here, we present our MRX setup and the employed SQUID design. We evaluate its performance by carrying out MRX measurements on immobilized MNPs.

  12. Sample Subset Optimization Techniques for Imbalanced and Ensemble Learning Problems in Bioinformatics Applications.

    Science.gov (United States)

    Yang, Pengyi; Yoo, Paul D; Fernando, Juanita; Zhou, Bing B; Zhang, Zili; Zomaya, Albert Y

    2014-03-01

    Data sampling is a widely used technique in a broad range of machine learning problems. Traditional sampling approaches generally rely on random resampling from a given dataset. However, these approaches do not take into consideration additional information, such as sample quality and usefulness. We recently proposed a data sampling technique, called sample subset optimization (SSO). The SSO technique relies on a cross-validation procedure for identifying and selecting the most useful samples as subsets. In this paper, we describe the application of SSO techniques to imbalanced and ensemble learning problems, respectively. For imbalanced learning, the SSO technique is employed as an under-sampling technique for identifying a subset of highly discriminative samples in the majority class. In ensemble learning, the SSO technique is utilized as a generic ensemble technique where multiple optimized subsets of samples from each class are selected for building an ensemble classifier. We demonstrate the utilities and advantages of the proposed techniques on a variety of bioinformatics applications where class imbalance, small sample size, and noisy data are prevalent.

  13. Improvement of ultrasound speckle image velocimetry using image enhancement techniques.

    Science.gov (United States)

    Yeom, Eunseop; Nam, Kweon-Ho; Paeng, Dong-Guk; Lee, Sang Joon

    2014-01-01

    Ultrasound-based techniques have been developed and widely used in noninvasive measurement of blood velocity. Speckle image velocimetry (SIV), which applies a cross-correlation algorithm to consecutive B-mode images of blood flow has often been employed owing to its better spatial resolution compared with conventional Doppler-based measurement techniques. The SIV technique utilizes speckles backscattered from red blood cell (RBC) aggregates as flow tracers. Hence, the intensity and size of such speckles are highly dependent on hemodynamic conditions. The grayscale intensity of speckle images varies along the radial direction of blood vessels because of the shear rate dependence of RBC aggregation. This inhomogeneous distribution of echo speckles decreases the signal-to-noise ratio (SNR) of a cross-correlation analysis and produces spurious results. In the present study, image-enhancement techniques such as contrast-limited adaptive histogram equalization (CLAHE), min/max technique, and subtraction of background image (SB) method were applied to speckle images to achieve a more accurate SIV measurement. A mechanical sector ultrasound scanner was used to obtain ultrasound speckle images from rat blood under steady and pulsatile flows. The effects of the image-enhancement techniques on SIV analysis were evaluated by comparing image intensities, velocities, and cross-correlation maps. The velocity profiles and wall shear rate (WSR) obtained from RBC suspension images were compared with the analytical solution for validation. In addition, the image-enhancement techniques were applied to in vivo measurement of blood flow in human vein. The experimental results of both in vitro and in vivo SIV measurements show that the intensity gradient in heterogeneous speckles has substantial influence on the cross-correlation analysis. The image-enhancement techniques used in this study can minimize errors encountered in ultrasound SIV measurement in which RBCs are used as flow

  14. PENGEMBANGAN EMPLOYABILITY SKILLS SISWA SMK DITINJAU DARI IMPLEMENTASI PENDEKATAN SAINTIFIK

    Directory of Open Access Journals (Sweden)

    Sunardi Sunardi

    2016-07-01

    Full Text Available The industry now needs a workforce that has the technical skills and employability skills. Completion of the CMS so that students have a technical skill and employability skills based on a scientific approach to implementation that is one indicator of the quality of learning. This research aims to know the contribution of the scientific approach towards implementation of employability skills the students of SMK Package Engineering Machining in South Sulawesi. Research using quantitative non experimental design approach is the type of survey that is ex-post facto. Pupulasi research is a grade XII Package Engineering Machining on SMK in South Sulawesi as much as 503 students with samples of 221. Data collection techniques used are the now. Research data were analyzed with descriptive analysis, comfirmatory factor analysis (CFA, regression analysis. The data analysis was done with the help of SPSS software version 4.5 for Windows and version of LISREL 9.10 Windows Application. Based on the results of the study it can be concluded that the implementation of the scientific approach contributes to employability skills students of SMK Package Engineering Machining in South Sulawesi. Therefore it can be said that the implementation of the scientific approach as a system of learning can develop employability skills graduates SMK. Industri saat ini membutuhkan tenaga kerja yang memiliki keterampilan teknis dan employability skill. Penyiapan siswa SMK agar memiliki keterampilan teknis dan employability skills berpangkal pada implementasi pendekatan saintifik yang merupakan salah satu indikator kualitas pembelajaran. Penelitian ini bertujuan untuk mengetahui kontribusi implementasi pendekatan saintifik terhadap employability skills siswa SMK Paket Keahlian Teknik Pemesinan di Sulawesi Selatan. Penelitian menggunakan pendekatan kuantitatif rancangan non eksperimen jenis survey yang bersifat ex-post facto. Pupulasi penelitian adalah siswa kelas XII Paket

  15. Contrast-enhanced peripheral MRA. Technique and contrast agents

    Energy Technology Data Exchange (ETDEWEB)

    Nielsen, Yousef W. [Dept. of Radiology, Copenhagen Univ. Hospital Bispebjerg, Bispebjerg (Denmark)], e-mail: ywnielsen@gmail.com; Thomsen, Henrik S. [Dept. of Diagnostic Radiology, Copenhagen Univ. Hospital Herlev, Herlev (Denmark)

    2012-09-15

    In the last decade contrast-enhanced magnetic resonance angiography (CE-MRA) has gained wide acceptance as a valuable tool in the diagnostic work-up of patients with peripheral arterial disease. This review presents current concepts in peripheral CE-MRA with emphasis on MRI technique and contrast agents. Peripheral CE-MRA is defined as an MR angiogram of the arteries from the aortic bifurcation to the feet. Advantages of CE-MRA include minimal invasiveness and lack of ionizing radiation. The basic technique employed for peripheral CE-MRA is the bolus-chase method. With this method a paramagnetic MRI contrast agent is injected intravenously and T1-weighted images are acquired in the subsequent arterial first-pass phase. In order to achieve high quality MR angiograms without interfering venous contamination or artifacts, a number of factors need to be taken into account. This includes magnetic field strength of the MRI system, receiver coil configuration, use of parallel imaging, contrast bolus timing technique, and k-space filling strategies. Furthermore, it is possible to optimize peripheral CE-MRA using venous compression techniques, hybrid scan protocols, time-resolved imaging, and steady-state MRA. Gadolinium(Gd)-based contrast agents are used for CE-MRA of the peripheral arteries. Extracellular Gd agents have a pharmacokinetic profile similar to iodinated contrast media. Accordingly, these agents are employed for first-pass MRA. Blood-pool Gd-based agents are characterized by prolonged intravascular stay, due to macromolecular structure or protein binding. These agents can be used for first-pass, as well as steady-state MRA. Some Gd-based contrast agents with low thermodynamic stability have been linked to development of nephrogenic systemic fibrosis in patients with severe renal insufficiency. Using optimized technique and a stable MRI contrast agent, peripheral CE-MRA is a safe procedure with diagnostic accuracy close to that of conventional catheter X

  16. Genome-wide RNA Tomography in the Zebrafish Embryo

    NARCIS (Netherlands)

    Junker, Jan Philipp; Noël, Emily S; Guryev, Victor; Peterson, Kevin A; Shah, Gopi; Huisken, Jan; McMahon, Andrew P; Berezikov, Eugene; Bakkers, Jeroen; van Oudenaarden, Alexander

    2014-01-01

    Advancing our understanding of embryonic development is heavily dependent on identification of novel pathways or regulators. Although genome-wide techniques such as RNA sequencing are ideally suited for discovering novel candidate genes, they are unable to yield spatially resolved information in

  17. Genome-wide RNA Tomography in the zebrafish embryo

    NARCIS (Netherlands)

    Junker, Jan Philipp; Noël, Emily S; Guryev, Victor; Peterson, Kevin A; Shah, Gopi; Huisken, Jan; McMahon, Andrew P; Berezikov, Eugene; Bakkers, Jeroen; van Oudenaarden, Alexander

    2014-01-01

    Advancing our understanding of embryonic development is heavily dependent on identification of novel pathways or regulators. Although genome-wide techniques such as RNA sequencing are ideally suited for discovering novel candidate genes, they are unable to yield spatially resolved information in

  18. Surfing the Net. Creativity on the World Wide Web.

    Science.gov (United States)

    Berger, Sandra

    2001-01-01

    This article discusses how the World Wide Web can empower students to think creatively, especially the gifted. It profiles 3 Web sites that discuss techniques, games, and strategies for enhancing creative thinking and 13 Web sites that contain information on inventors and inventions to stimulate gifted students. (Contains one reference.) (CR)

  19. Whole cell entrapment techniques.

    Science.gov (United States)

    Trelles, Jorge A; Rivero, Cintia W

    2013-01-01

    Microbial whole cells are efficient, ecological, and low-cost catalysts that have been successfully applied in the pharmaceutical, environmental, and alimentary industries, among others. Microorganism immobilization is a good way to carry out the bioprocess under preparative conditions. The main advantages of this methodology lie in their high operational stability, easy upstream separation and bioprocess scale-up feasibility. Cell entrapment is the most widely used technique for whole cell immobilization. This technique-in which the cells are included within a rigid network-is porous enough to allow the diffusion of substrates and products, protects the selected microorganism from the reaction medium, and has high immobilization efficiency (100 % in most cases).

  20. RADIOMETRIC TECHNIQUES IN HEAVY MINERAL EXPLORATION AND EXPLOITATION

    NARCIS (Netherlands)

    DEMEIJER, RJ; TANCZOS, IC; STAPEL, C

    1994-01-01

    In recent years the Environmental Research Group of the KVI has been developing a number of radiometric techniques that may be employed in mineral sand exploration. These techniques involve: radiometric fingerprinting for assessing sand provenances and mineralogical composition; thermoluminescence

  1. RADIOMETRIC TECHNIQUES IN HEAVY MINERAL EXPLORATION AND EXPLOITATION

    NARCIS (Netherlands)

    DEMEIJER, RJ; TANCZOS, IC; STAPEL, C

    1994-01-01

    In recent years the Environmental Research Group of the KVI has been developing a number of radiometric techniques that may be employed in mineral sand exploration. These techniques involve: radiometric fingerprinting for assessing sand provenances and mineralogical composition; thermoluminescence f

  2. Characterization of torque-spectroscopy techniques for probing rotary nanomotors

    NARCIS (Netherlands)

    Van Oene, M.M.

    2016-01-01

    This thesis describes developments in the characterization of torque-spectroscopy techniques, in particular magnetic and optical tweezers, with the goal of employing these techniques in studies on the bacterial flagellar motor of Escherichia coli.

  3. Backcasting for Sustainable Employment: A Hungarian Experience

    OpenAIRE

    Bálint Balázs; Gábor Király; György Pataki; Alexandra Köves

    2013-01-01

    Sustainability and employment are terms seldom used together. Especially when defining sustainability in the stricter sense of the word, delineating a world where strong sustainability is the norm, it is problematic to deduct which elements may compose sustainable employment. In the relevant discourse, two distinct directions can be identified. Ecological modernization promises “quick fixes” to employment problems while reducing environmentally harmful economic activities without initiating m...

  4. Unemployment Insurance, Job Search, and Informal Employment

    OpenAIRE

    Margolis, David N.; Navarro, Lucas; Robalino, David A.

    2014-01-01

    International audience; This paper analyses the potential impacts of introducing unemployment insurance (UI) in middle income countries using the case of Malaysia, which today does not have such a system. The analysis is based on a job search model with unemployment and three employment sectors: formal and informal wage employment, and self employment. The parameters of the model are estimated to replicate the structure of the labor market in Malaysia in 2009 and the distribution of earnings ...

  5. Fiscal Transparency, Elections and Public Employment

    DEFF Research Database (Denmark)

    Aaskoven, Lasse

    2016-01-01

    There is considerable variation in levels and changes in public employment within and between developed democracies. This article highlights the importance of fiscal transparency in determining changes in public employment. It argues that economic growth increases public employment under low fiscal...... transparency and that this effect is strongest in years of election. These hypotheses are tested on a panel of 20 OECD countries from 1995 to 2010. The analyses show substantial evidence in favor of the arguments. Fiscal transparency lowers the positive effect of growth on public employment, a relationship...

  6. Government employers in Sweden, Denmark and Norway

    DEFF Research Database (Denmark)

    Hansen, Nana Wesley; Seip, Åsmund Arup

    2017-01-01

    power: direct political intervention, attempts to decentralize wage bargaining and control of wage movements. We argue that government employers in the three countries have similar institutional capacities for power, but their ways of exercising power vary according to political norms and practice.......How do government employers exercise power in highly voluntarist bargaining models? In this article, we analyse the potential power of public employers in Sweden, Denmark and Norway and examine how they use this potential. We call attention to three areas in which government employers exercise...

  7. Predictors of employment after liver transplantation.

    Science.gov (United States)

    Sahota, Amandeep; Zaghla, Hassan; Adkins, Rodney; Ramji, Alnoor; Lewis, Susan; Moser, Jennifer; Sher, Linda S; Fong, Tse-Ling

    2006-01-01

    Employment after orthotopic liver transplantation (OLT) indicates recipients' physical/psychosocial adjustment. Our aim was to determine clinical, socioeconomic and health-related quality of life parameters influencing employment after OLT. Questionnaire on demographics, medical conditions, alcohol and drug use before/after OLT, and a validated 12-Item Short Form Health Survey (SF-12) were mailed to 126 adult OLT patients. Stepwise logistic regression was conducted to identify best predictors of post-OLT employment. Among non-retirees, 49% were employed after OLT. The predictors of employment were: employment status, income, disability status before OLT and Model of End Stage Liver Disease score. These variables had prediction rate of 82%. Individuals working during the five yr prior to OLT were likely to return to work (p6 months prior to OLT (p$80 000 before OLT compared with or=6 months prior to OLT, were less likely to work (p=0.0005). Severity/duration of liver dysfunction prior to OLT did not correlate with employment. Sense of physical health was poorer in those employed after OLT than in unemployed (p=0.0003). Socioeconomic factors were the most important predictors of post-OLT employment.

  8. Employer Practices in Improving Employment Outcomes for People with Disabilities: A Transdisciplinary and Employer-Inclusive Research Approach

    Science.gov (United States)

    Barrington, Linda; Bruyère, M.; Waelder, Margaret

    2014-01-01

    Objective: Share new knowledge about workplace practices related to employer success in hiring, retaining, and promoting people with disabilities, and promote use of findings to employers and service providers. Design: A transdisciplinary and multifaceted data gathering approach. Results: Provides an overview of the research approach taken and the…

  9. Employer Practices in Improving Employment Outcomes for People with Disabilities: A Transdisciplinary and Employer-Inclusive Research Approach

    Science.gov (United States)

    Barrington, Linda; Bruyère, M.; Waelder, Margaret

    2014-01-01

    Objective: Share new knowledge about workplace practices related to employer success in hiring, retaining, and promoting people with disabilities, and promote use of findings to employers and service providers. Design: A transdisciplinary and multifaceted data gathering approach. Results: Provides an overview of the research approach taken and the…

  10. Employer perspectives on the role of soft skills in subsidized employment relationships

    OpenAIRE

    Camochan, S; Taylor, S.; Pascual, G.; Austin, MJ

    2014-01-01

    ©Alliance for Children and Families. The dual objective of subsidized employment programs is to support employers and low-income job seekers. However, few studies of these programs have examined employer perspectives or reflected critically on the role of soft skills in relationships between employers and subsidized employees. This qualitative study examined employer perspectives on soft skills, drawing on the concept of fit from the person-in-environment perspective, as framed by personnel p...

  11. Combinatorial techniques

    CERN Document Server

    Sane, Sharad S

    2013-01-01

    This is a basic text on combinatorics that deals with all the three aspects of the discipline: tricks, techniques and theory, and attempts to blend them. The book has several distinctive features. Probability and random variables with their interconnections to permutations are discussed. The theme of parity has been specially included and it covers applications ranging from solving the Nim game to the quadratic reciprocity law. Chapters related to geometry include triangulations and Sperner's theorem, classification of regular polytopes, tilings and an introduction to the Eulcidean Ramsey theory. Material on group actions covers Sylow theory, automorphism groups and a classification of finite subgroups of orthogonal groups. All chapters have a large number of exercises with varying degrees of difficulty, ranging from material suitable for Mathematical Olympiads to research.

  12. Escaping Antiangiogenic Therapy: Strategies Employed by Cancer Cells

    Directory of Open Access Journals (Sweden)

    Mauricio P. Pinto

    2016-09-01

    Full Text Available Tumor angiogenesis is widely recognized as one of the “hallmarks of cancer”. Consequently, during the last decades the development and testing of commercial angiogenic inhibitors has been a central focus for both basic and clinical cancer research. While antiangiogenic drugs are now incorporated into standard clinical practice, as with all cancer therapies, tumors can eventually become resistant by employing a variety of strategies to receive nutrients and oxygen in the event of therapeutic assault. Herein, we concentrate and review in detail three of the principal mechanisms of antiangiogenic therapy escape: (1 upregulation of compensatory/alternative pathways for angiogenesis; (2 vasculogenic mimicry; and (3 vessel co-option. We suggest that an understanding of how a cancer cell adapts to antiangiogenic therapy may also parallel the mechanisms employed in the bourgeoning tumor and isolated metastatic cells delivering responsible for residual disease. Finally, we speculate on strategies to adapt antiangiogenic therapy for future clinical uses.

  13. Total reflection of x-ray fluorescence (TXRF): a mature technique for environmental chemical nanoscale metrology

    Science.gov (United States)

    Borgese, L.; Zacco, A.; Bontempi, E.; Colombi, P.; Bertuzzi, R.; Ferretti, E.; Tenini, S.; Depero, L. E.

    2009-08-01

    Total reflection x-ray fluorescence (TXRF) is a technique well established for chemical analysis of samples deposited as a thin layer. Nowadays it is mainly employed for electronic industry quality control. Recently, very compact and economic TXRF instrumentation was proposed. Combining this with the capability to analyze liquid samples, this technique is suitable to be employed in many different applications, comprising the very critical field of environmental analysis. Comparisons with the standard atomic absorption spectroscopy (AAS) technique show that TXRF is a practical, accurate, and reliable technique. Indeed, round-robin activities have already been started. Despite the efficiency and economy of the developed portable TXRF instrumentation, this is not widely employed for chemical laboratory analysis probably because TXRF is not an officially recognized technique, i.e. it is not yet normative-subjected. This fact could also be due to the long background of analytical applications developed for AAS, ICPS or inductively coupled plasma mass spectroscopy (ICP-MS) up to now. In this paper, we present a work of environmental monitoring of an industrial site, performed by means of bioindicators (lichens). The analysis of trace elements concentration in lichen was usually conducted with spectrophotometric techniques, such as AAS and ICP-MS, which were accepted by common regulations and normative-subjected. In this study, we accomplished a comparative lichen analysis by AAS and TXRF. The reproducibility of the obtained results showed the high correspondence between the two techniques. This comparison highlighted the versatility of the TXRF apparatus that allowed more rapid and simultaneous element detection. The obtained results suggested that this portable TXRF system could be suitable for regulation to produce certificated analysis upto ppb concentrations for some elements.

  14. Model-based sub-Nyquist sampling and reconstruction technique for ultra-wideband (UWB) radar

    Science.gov (United States)

    Nguyen, Lam; Tran, Trac D.

    2010-04-01

    The Army Research Lab has recently developed an ultra-wideband (UWB) synthetic aperture radar (SAR). The radar has been employed to support proof-of-concept demonstration for several concealed target detection programs. The radar transmits and receives short impulses to achieve a wide-bandwidth from 300 MHz to 3000 MHz. Since the radar directly digitizes the wide-bandwidth receive signals, the challenges is to how to employ relatively slow and inexpensive analog-to-digital (A/D) converters to sample the signals with a rate that is greater than the minimum Nyquist rate. ARL has developed a sampling technique that allows us to employ inexpensive A/D converters (ADC) to digitize the widebandwidth signals. However, this technique still has a major drawback due to the longer time required to complete a data acquisition cycle. This in turn translates to lower average power and lower effective pulse repetition frequency (PRF). Compressed Sensing (CS) theory offers a new approach in data acquisition. From the CS framework, we can reconstruct certain signals or images from much fewer samples than the traditional sampling methods, provided that the signals are sparse in certain domains. However, while the CS framework offers the data compression feature, it still does not address the above mentioned drawback, that is the data acquisition must be operated in equivalent time since many global measurements (obtained from global random projections) are required as depicted by the sensing matrix Φ in the CS framework. In this paper, we propose a new technique that allows the sub-Nyquist sampling and the reconstruction of the wide-bandwidth data. In this technique, each wide-bandwidth radar data record is modeled as a superposition of many backscatter signals from reflective point targets. The technique is based on direct sparse recovery using a special dictionary containing many time-delayed versions of the transmitted probing signal. We demonstrate via simulated as well as

  15. Advances of the IBIC technique

    Energy Technology Data Exchange (ETDEWEB)

    Breese, M.B.H.; Laird, J.S.; Jamieson, D.N. [Melbourne Univ., Parkville, VIC (Australia). School of Physics

    1993-12-31

    The ion beam induced charge (IBIC) technique has been used for a wide variety of analytical applications in the study of semiconductor materials. This paper briefly reviews these uses and identifies those areas which require further development in order to facilitate the more widespread use of the IBIC method. Progress towards implementing these improvements is discussed. 14 refs., 1 fig.

  16. The Ooty Wide Field Array

    Indian Academy of Sciences (India)

    C. R. Subrahmanya; P. K. Manoharan; Jayaram N. Chengalur

    2017-03-01

    We describe here an ongoing upgrade to the legacy Ooty Radio Telescope (ORT). The ORT is a cylindrical parabolic cylinder 530 m × 30 m in size operating at a frequency of 326.5 (or $z \\sim 3.35$ for the HI 21-cm line). The telescope has been constructed on a North–South hill slope whose gradient is equal to the latitude of the hill, making it effectively equatorially mounted. The feed consists of an array of 1056 dipoles. The key feature of this upgrade is the digitization and cross-correlation of the signals of every set of 4-dipoles. This converts the ORT into a 264 element interferometer with a field-of-view of $ 2^{\\circ} \\times 27.4^{\\circ} \\cos(\\delta)$. This upgraded instrument is called the Ooty Wide Field Array (OWFA). This paper briefly describes the salient features of the upgrade, as well as its main science drivers. There are three main science drivers viz. (1) observations of the large scale distribution of HI in the post-reionization era, (2) studies of the propagation of plasma irregularities through the inner heliosphere and (3) blind surveys for transient sources. More details on the upgrade, as well as on the expected science uses can be found in other papers in this special issue.

  17. Wide area continuous offender monitoring

    Energy Technology Data Exchange (ETDEWEB)

    Hoshen, J. [Lucent Technologies (United States); Drake, G. [New Mexico Dept. of Corrections, Santa Fe, NM (United States); Spencer, D. [Sandia National Labs., Albuquerque, NM (United States)

    1996-11-01

    The corrections system in the U.S. is supervising over five million offenders. This number is rising fast and so are the direct and indirect costs to society. To improve supervision and reduce the cost of parole and probation, first generation home arrest systems were introduced in 1987. While these systems proved to be helpful to the corrections system, their scope is rather limited because they only cover an offender at a single location and provide only a partial time coverage. To correct the limitations of first-generation systems, second-generation wide area continuous electronic offender monitoring systems, designed to monitor the offender at all times and locations, are now on the drawing board. These systems use radio frequency location technology to track the position of offenders. The challenge for this technology is the development of reliable personal locator devices that are small, lightweight, with long operational battery life, and indoors/outdoors accuracy of 100 meters or less. At the center of a second-generation system is a database that specifies the offender`s home, workplace, commute, and time the offender should be found in each. The database could also define areas from which the offender is excluded. To test compliance, the system would compare the observed coordinates of the offender with the stored location for a given time interval. Database logfiles will also enable law enforcement to determine if a monitored offender was present at a crime scene and thus include or exclude the offender as a potential suspect.

  18. Employment Equity for the Disabled in Canada.

    Science.gov (United States)

    Raskin, Carl

    1994-01-01

    Less emphasis should be placed on numbers of disabled people employed and more on their equitable distribution within organizations. An affirmative action model categorizing jobs as nonable-body dominated and able-body dominated would distinguish types of disability and reduce structural barriers to employment. (SK)

  19. 45 CFR 86.51 - Employment.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Employment. 86.51 Section 86.51 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION NONDISCRIMINATION ON THE BASIS OF SEX IN...) Recruitment, advertising, and the process of application for employment; (2) Hiring, upgrading,...

  20. China's Employment Situation and Policies

    Institute of Scientific and Technical Information of China (English)

    Excerpts

    2004-01-01

    With a large working-age population with a relatively low average level of education, China is facing severe challenges in employment. These include: the contradiction between workforce supply and demand; irrational employment structure;increasing pressure on the urban labor market;

  1. Employers' Perceptions of Online Accounting Education

    Science.gov (United States)

    Tabatabaei, Manouchehr; Solomon, Alison; Strickland, Emily; Metrejean, Eddie

    2014-01-01

    The main focus of this research is on perceptions of accounting employers of those individuals obtaining their accounting education online. An online survey of accounting professionals was conducted, and the findings suggest that a candidate with a traditional education is more suitable for employment than a candidate with an online education.…

  2. Employment protection in Dutch collective labour agreements

    NARCIS (Netherlands)

    T. Schils

    2007-01-01

    The Dutch system of employment protection is often perceived as too strict for workers on permanent contracts, because of the large procedural inconveniences, difficulty of dismissal and high severance pay. It is suggested that the system of employment protection lowers labour market flexibility by

  3. Employers' Perceptions of Online Accounting Education

    Science.gov (United States)

    Tabatabaei, Manouchehr; Solomon, Alison; Strickland, Emily; Metrejean, Eddie

    2014-01-01

    The main focus of this research is on perceptions of accounting employers of those individuals obtaining their accounting education online. An online survey of accounting professionals was conducted, and the findings suggest that a candidate with a traditional education is more suitable for employment than a candidate with an online education.…

  4. Crisis and Employment: The Case of Korea

    Science.gov (United States)

    Cho, Dongchul; Shin, Sukha

    2012-01-01

    This paper examines Korea's employment dynamics and analyzes how adverse impacts could be mitigated during the recent economic crisis in comparison with the 1997 to 1998 Asian crisis. A clear lesson is that policies to mitigate adverse impacts of financial crisis on the macroeconomic level should be given priority for preserving employment. In…

  5. Special Issue: Productive Employment for the Poor.

    Science.gov (United States)

    Gaude, Jacques, Ed.; Miller, Steven, Ed.

    1992-01-01

    This special issue contains nine articles on labor-intensive public works, social investment funds, rural infrastructure projects, grassroots socioeconomic rights, remuneration systems for self-help projects, road construction and rural transport, employment and environmental rehabilitation, and water as a source of employment. (SK)

  6. Critical Elements of the Employment Relationship.

    Science.gov (United States)

    Beckham, Joseph

    The employment relationship in public schools is governed by constitutional mandates, federal and state statutes, administrative regulations, and contractual obligations. This chapter discusses fundamental aspects of the employment relationship that are influenced by legal principles derived from state law, local district policy and practice, and…

  7. Employment Opportunities in Agribusiness. A Report.

    Science.gov (United States)

    Dempsey, Richard E.

    This report, which was written during a project to develop a better understanding of which occupations may relate to agribusiness and to identify employment opportunities in agribusiness, is designed to assist state occupational information coordinating committees and state employment security agencies in developing special reports/lists of…

  8. 15 CFR 8b.13 - Employment criteria.

    Science.gov (United States)

    2010-01-01

    ... sensory, manual, or speaking skills, the test results accurately to reflect the applicant's or employee's....13 Commerce and Foreign Trade Office of the Secretary of Commerce PROHIBITION OF DISCRIMINATION... Practices § 8b.13 Employment criteria. (a) A recipient may not make use of any employment test or...

  9. Is Maternal Employment Related to Childhood Obesity?

    DEFF Research Database (Denmark)

    Gwozdz, Wencke

    2016-01-01

    Childhood obesity has been rising steadily in most parts of the world. Popular speculation attributes some of that increase to rising maternal employment. Employed mothers spend less time at home and thus less time with their children, whose diets and physical activity may suffer. Also, children...

  10. 31 CFR 28.500 - Employment.

    Science.gov (United States)

    2010-07-01

    ... employment on the basis of attendance at any educational institution or entity that admits as students only... students to discrimination prohibited by §§ 28.500 through 28.550, including relationships with employment...) Rates of pay or any other form of compensation, and changes in compensation; (4) Job assignments...

  11. 6 CFR 17.500 - Employment.

    Science.gov (United States)

    2010-01-01

    ... employment on the basis of attendance at any educational institution or entity that admits as students only... students to discrimination prohibited by §§ 17.500 through 17.550, including relationships with employment..., termination, application of nepotism policies, right of return from layoff, and rehiring; (3) Rates of pay or...

  12. 40 CFR 5.500 - Employment.

    Science.gov (United States)

    2010-07-01

    ... employment on the basis of attendance at any educational institution or entity that admits as students only... students to discrimination prohibited by §§ 5.500 through 5.550, including relationships with employment...) Rates of pay or any other form of compensation, and changes in compensation; (4) Job assignments...

  13. 28 CFR 54.500 - Employment.

    Science.gov (United States)

    2010-07-01

    ... employment on the basis of attendance at any educational institution or entity that admits as students only... students to discrimination prohibited by §§ 54.500 through 54.550, including relationships with employment...) Rates of pay or any other form of compensation, and changes in compensation; (4) Job assignments...

  14. Crisis and Employment: The Case of Korea

    Science.gov (United States)

    Cho, Dongchul; Shin, Sukha

    2012-01-01

    This paper examines Korea's employment dynamics and analyzes how adverse impacts could be mitigated during the recent economic crisis in comparison with the 1997 to 1998 Asian crisis. A clear lesson is that policies to mitigate adverse impacts of financial crisis on the macroeconomic level should be given priority for preserving employment. In…

  15. Employment after liver transplantation: a review.

    Science.gov (United States)

    Huda, A; Newcomer, R; Harrington, C; Keeffe, E B; Esquivel, C O

    2015-03-01

    Return to productive employment is often an important milestone in the recovery and rehabilitation process after liver transplantation (OLT). This literature review identifies factors associated with employment in patients who underwent OLT. We searched PubMed for articles that addressed the various factors affecting employment after OLT. The studies demonstrated improvement in the quality of life and examined factors that predicted whether patients would return to work after OLT. Demographic variable associated with posttransplant employment included young age, male sex, college degree, Caucasian race, and pretransplant employment. Patients with alcohol-related liver disease had a significantly lower rate of employment than did those with other etiologies of liver disease. Recipients who were employed after transplantation had a significantly better posttransplant functional status than did those who were not employed. Economic pressures are increasing the expectation that patients who undergo successful OLT will return to work. Thus, transplant teams need to have a better understanding of posttransplant work outcomes for this vulnerable population, and greater attention must be paid to the full social rehabilitation of transplant recipients. Specific interventions for OLT recipients should be designed to evaluate and change their health perceptions and encourage their return to work. Published by Elsevier Inc.

  16. 20 CFR 655.940 - Employer attestations.

    Science.gov (United States)

    2010-04-01

    ... attestation on Form ETA-9034. The attestation shall be signed by the employer (or the employer's designated... shall be submitted, by U.S. mail, private carrier, or facsimile transmission, to the appropriate ETA... seeks to hire any F-1 student(s). Attestations may be filed simultaneously with ETA and the DSO, or...

  17. 5 CFR 3801.106 - Outside employment.

    Science.gov (United States)

    2010-01-01

    ....106 Administrative Personnel DEPARTMENT OF JUSTICE SUPPLEMENTAL STANDARDS OF ETHICAL CONDUCT FOR... section, outside employment means any form of employment, business relationship or activity, involving the... duties. It includes, but is not limited to, services as a lawyer, officer, director, trustee, employee...

  18. Some New Ideas on Employability Counseling.

    Science.gov (United States)

    Goalder, James S.; Mann, William H.

    1981-01-01

    Discusses common disadvantages of most current Employability Development Plans (EDPs) and suggests specific remedies that organize the decision-making thrust of employability counseling. Presents a theory-based, developmental model for assessment and EDP systems, and reviews general problems in implementing this model. (Author)

  19. 22 CFR 62.74 - Student employment.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Student employment. 62.74 Section 62.74 Foreign Relations DEPARTMENT OF STATE PUBLIC DIPLOMACY AND EXCHANGES EXCHANGE VISITOR PROGRAM Student and Exchange Visitor Information System (SEVIS) § 62.74 Student employment. (a) Students meeting the definition...

  20. Public Service Employment as Macroeconomic Policy.

    Science.gov (United States)

    Baily, Martin N.; Solow, Robert M.

    1979-01-01

    Authors assert that public service employment (PSE) is one form of macroeconomic policy and compare PSE to tax reduction, federal subsidies, and other forms. They propose a design for an ongoing federal employment program and conclude that a PSE program aimed at the structurally unemployed creates more jobs per GNP dollar than other policies. (SK)