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1

A comparative analysis of users and non-users of prescribed psychotropic medication among individuals who reported mental health problems  

Directory of Open Access Journals (Sweden)

Full Text Available Objective: The use of psychotropic medication has increased over the years and there are concerns about the inappropriate use and prescribing of such medication. The objective of this study was to compare the characteristics of users and non-users of prescribed psychotropic medication among individuals who report mental health problems. Method: Data from the 2006 Health Research Board, National Psychological Wellbeing and Distress Survey (HRB NPWDS) was used to compare users and non-users of prescribed psychotropic medication among 382 individuals who reported mental health problems. The HRB NPWDS was carried out between December 2005 and April 2006. Results: One-third of respondents who had experienced a mental health problem in the past 12 months had used prescribed psychotropic medication. The majority of the respondents had their medication prescribed by the general practitioner (GP). Those who had used psychotropic medication in the previous year had also used more supports than those who had not used medication. Users were also more likely to have lower weekly income, attend the GP more often and have lower perceived mental health status. Users were not more willing to disclose distressing information and did not have higher levels of psychological distress. Conclusion: The findings highlight the importance of the GP in the treatment and care of common mental health problems. Furthermore, the findings highlight the gap in treatment for those who are experiencing mental health problems.

Silvia Gallagher; Donna Tedstone Doherty

2010-01-01

2

Comparing Text-based and Graphic User Interfaces for Novice and Expert Users  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Graphic User Interface (GUI) is commonly considered to be superior to Text-based User Interface (TUI). This study compares GUI and TUI in an electronic dental record system. Several usability analysis techniques compared the relative effectiveness of a GUI and a TUI. Expert users and novice users we...

Chen, Jung-Wei; Zhang, Jiajie

3

Comparing Text-based and Graphic User Interfaces for novice and expert users.  

Science.gov (United States)

Graphic User Interface (GUI) is commonly considered to be superior to Text-based User Interface (TUI). This study compares GUI and TUI in an electronic dental record system. Several usability analysis techniques compared the relative effectiveness of a GUI and a TUI. Expert users and novice users were evaluated in time required and steps needed to complete the task. A within-subject design was used to evaluate if the experience with either interface will affect task performance. The results show that the GUI interface was not better than the TUI for expert users. GUI interface was better for novice users. For novice users there was a learning transfer effect from TUI to GUI. This means a user interface is user-friendly or not depending on the mapping between the user interface and tasks. GUI by itself may or may not be better than TUI. PMID:18693811

Chen, Jung-Wei; Zhang, Jiajie

2007-10-11

4

MAUS: MICE Analysis User Software  

CERN Document Server

The Muon Ionization Cooling Experiment (MICE) has developed the MICE Analysis User Software (MAUS) to simulate and analyse experimental data. It serves as the primary codebase for the experiment, providing for online data quality checks and offline batch simulation and reconstruction. The code is structured in a Map-Reduce framework to allow parallelization whether on a personal machine or in the control room. Various software engineering practices from industry are also used to ensure correct and maintainable physics code, which include unit, functional and integration tests, continuous integration and load testing, code reviews, and distributed version control systems. Lastly, there are various small design decisions like using JSON as the data structure, using SWIG to allow developers to write components in either Python or C++, or using the SCons python-based build system that may be of interest to other experiments.

CERN. Geneva

2012-01-01

5

[User benefit of modern hearing aids : A comparative study].  

UK PubMed Central (United Kingdom)

BACKGROUND: In the face of the rapid development of hearing aid system technology it is helpful to regularly study the user benefit of the current generation. TEST PERSONS AND METHODS: To contribute to the question on how the user benefit of current hearing aids compares with the benefit of the previous generation of hearing aids, a multicentre study was carried out in cooperation with 79 hearing aid acoustics companies in Germany. The user benefit of modern hearing aids in everyday life was assessed by asking end users to participate in a survey by completing a questionnaire. The questionnaire consisted of 20 items, 10 of which were taken from validated international inventories (SSQ: Speech, Spatial and Qualities of Hearing scale, IOI-HA: International Outcome Inventory for Hearing Aids) and the other 10 were formulated particularly for this purpose. RESULTS: A total of 664 usable questionnaires were returned whereby 421 responders were first time users and 243 responders were previous hearing aid users. The results of the present study showed that modern hearing aid system technology provides significant extra benefits at the 5 % level relative to the previous generation of hearing aids for all variables tested in this study. CONCLUSIONS: Even though the amount of gain in terms of user benefit may be overestimated due to well-known placebo effects, an obvious net effect was evident. Correlations between the level of hearing aid benefit and possible influencing factors, such as age, gender, subjects own hearing aid, duration of use or hearing loss, could not be identified.

Kießling J; Kreikemeier S

2013-08-01

6

MEGA (Mechanical Engineering General Analysis) User's Document.  

Science.gov (United States)

MEGA (Mechanical Engineering General Analysis) is a FORTRAN computer code, which allows the user to analyze data, generated by a variety of data acquisition systems currently being used by Engineering Sciences Division (DVM Node, Transient Recorder, Fract...

B. Voegeli C. K. Wong

1983-01-01

7

LEXICAL ANALYSIS TO EFFECTIVELY DETECT USERS’ OPINION  

Directory of Open Access Journals (Sweden)

Full Text Available In this paper we present a lexical approach that will identify opinion of web users popularly expressedusing short words or sms words. These words are pretty popular with diverse web users and are used forexpressing their opinion on the web. The study of opinion from web arises to know the diverse opinion ofweb users. The opinion expressed by web users may be on diverse topics such as politics, sports, products,movies etc. These opinions will be very useful to others such as, leaders of political parties, selectioncommittees of various sports, business analysts and other stake holders of products, directors andproducers of movies as well as to the other concerned web users. We use semantic based approach to findusers opinion from short words or sms words apart of regular opinionated phrases. Our approachefficiently detects opinion from opinionated texts using lexical analysis and is found to be better than theother approaches on different data sets.

Anil Kumar K.M; Suresha

2011-01-01

8

Similar methodological analysis involving the user experience.  

UK PubMed Central (United Kingdom)

This article deals with the use of a protocol for analysis of similar methodological analysis related to user experience. For both, were selected articles recounting experiments in the area. They were analyze based on the similar analysis protocol and finally, synthesized and associated.

Almeida e Silva CM; Okimoto ML; Tanure RL

2012-01-01

9

Similar methodological analysis involving the user experience.  

Science.gov (United States)

This article deals with the use of a protocol for analysis of similar methodological analysis related to user experience. For both, were selected articles recounting experiments in the area. They were analyze based on the similar analysis protocol and finally, synthesized and associated. PMID:22316847

Almeida e Silva, Caio Márcio; Okimoto, Maria Lúcia R L; Tanure, Raffaela Leane Zenni

2012-01-01

10

User analysis of LHCb data with Ganga  

Energy Technology Data Exchange (ETDEWEB)

GANGA (http://cern.ch/ganga) is a job-management tool that offers a simple, efficient and consistent user analysis tool in a variety of heterogeneous environments: from local clusters to global Grid systems. Experiment specific plug-ins allow GANGA to be customised for each experiment. For LHCb users GANGA is the officially supported and advertised tool for job submission to the Grid. The LHCb specific plug-ins allow support for end-to-end analysis helping the user to perform his complete analysis with the help of GANGA. This starts with the support for data selection, where a user can select data sets from the LHCb Bookkeeping system. Next comes the set up for large analysis jobs: with tailored plug-ins for the LHCb core software, jobs can be managed by the splitting of these analysis jobs with the subsequent merging of the resulting files. Furthermore, GANGA offers support for Toy Monte-Carlos to help the user tune their analysis. In addition to describing the GANGA architecture, typical usage patterns within LHCb and experience with the updated LHCb DIRAC workload management system are presented.

Maier, Andrew; Gaidioz, Benjamin; Moscicki, Jakub; Muraru, Adrian; Ster, Daniel van der [European Organization for Nuclear Research, CERN CH-1211, Geneve 23 (Switzerland); Brochu, Frederic [Department of Physics, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE (United Kingdom); Cowan, Greg [Particle Physics Experiments Group, School of Physics, University of Edinburgh, Edinburgh EH9 3JZ (United Kingdom); Egede, Ulrik; Reece, Will; Williams, Mike [Department of Physics, Imperial College London, Prince Consort Road, London SW7 2AZ (United Kingdom); Elmsheuser, Johannes [Ludwig-Maximilians-Universitaet Muenchen, Geschwister-Scholl-Platz 1, 80539 Munich (Germany); Harrison, Karl; Slater, Mark; Tan, Chun Lik [School of Physics and Astronomy, The University of Birmingham, Edgbaston, Birmingham, B15 2TT (United Kingdom); Lee, Hurng-Chun [Nationaal instituut voor subatomaire fysica (NIKHEF), Science Park 105, 1098 XG Amsterdam (Netherlands); Liko, Dietrich [Institute of High Energy Physics of the Austrian Academy of Sciences, Nikolsdorfer Gasse 18, A-1050 Wien (Austria); Pajchel, Katarina; Samset, Bjoern [Experimental Particle Physics Group, Department of Physics, University of Oslo, PO Box 1048, Blindern, NO-0316 Oslo (Norway); Soroko, Alexander, E-mail: andrew.maier@cern.c [University of Oxford (United Kingdom)

2010-04-01

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Anaerobic digestion analysis model: User`s manual  

Energy Technology Data Exchange (ETDEWEB)

The Anaerobic Digestion Analysis Model (ADAM) has been developed to assist investigators in performing preliminary economic analyses of anaerobic digestion processes. The model, which runs under Microsoft Excel{trademark}, is capable of estimating the economic performance of several different waste digestion process configurations that are defined by the user through a series of option selections. The model can be used to predict required feedstock tipping fees, product selling prices, utility rates, and raw material unit costs. The model is intended to be used as a tool to perform preliminary economic estimates that could be used to carry out simple screening analyses. The model`s current parameters are based on engineering judgments and are not reflective of any existing process; therefore, they should be carefully evaluated and modified if necessary to reflect the process under consideration. The accuracy and level of uncertainty of the estimated capital investment and operating costs are dependent on the accuracy and level of uncertainty of the model`s input parameters. The underlying methodology is capable of producing results accurate to within {+-} 30% of actual costs.

Ruth, M.; Landucci, R.

1994-08-01

12

Component analysis of respirator user training.  

UK PubMed Central (United Kingdom)

Respirators must be properly used to be effective. In an experimental protocol, 145 subjects were trained and then observed donning and doffing respirators. Filtering facepiece and dual cartridge half face mask types were studied. Subjects were then tested for knowledge and for proper performance using video recording analysis. Knowledge tests showed adequate learning, but performance was often poor. Inspection, strap tension (half mask), seal checking, and avoiding mask contact during doffing were particularly problematic. Mask positioning was generally well done. Correlation between knowledge and performance for specific items was generally poor, although there was a weak correlation between overall knowledge and overall performance (rho = 0.32) for the half mask users. Actual unprompted performance as well as knowledge and fit-testing should be assessed for user certification. Respirator design approval should consider users' ability to learn proper technique.

Harber P; Boumis RJ; Su J; Barrett S; Alongi G

2013-01-01

13

Comparing safety analysis techniques  

International Nuclear Information System (INIS)

In process industry Safety Instrumented Systems (SIS) and Emergency Shutdown Systems (ESD) are very important for the management/reduction of risk. In new standards (e.g. Ref. ) on functional safety of electrical/electronic/programmable electronic safety-related systems a quantification of the achieved safety is often required. These new standards do not prescribe how to calculate the achieved safety. Only guidelines and recommendations are given. The problem with this approach is that all kinds of different analysis techniques will be used and in industry the results of the analysis will be compared. These different analysis techniques all use different methodologies and assumptions, which implies that the results may not be comparable. In this paper an approach for comparing different analysis techniques and the qualitative and quantitative results from this comparison are described. The author suggests that, because of the differences in the analysis techniques, one analysis technique is to be preferred. The Enhanced Markov Analysis technique, described in this paper, could be used for this purpose because it covers most aspects relevant for quantification of safety.

2002-01-01

14

Lipid profile in antipsychotic drug users: A comparative study.  

UK PubMed Central (United Kingdom)

BACKGROUND: Schizophrenic patients who receive antipsychotic drugs may be highly prone to metabolic disorders such as weight gain, dyslipidemia, and insulin resistance. The objective of the present study was to compare the effect of atypical and conventional antipsychotics on lipid profile. METHODS: 128 schizophrenic patients were enrolled into the study. Patients were divided into two groups. One group had received one type of atypical antipsychotic drug, and, the other, one type of conventional antipsychotic drug. They were considered as atypical and conventional groups. Moreover, both groups had not used any other antipsychotic drugs during the past year. Demographic data and food frequency questionnaire were completed by the participants. Serum triglyceride, total cholesterol (TC), high-density lipoprotein and low-density lipoprotein (LDL) cholesterols, and apolipoprotein A and B (Apo B) were tested by blood sample drawing after 12 hours of fasting through the antecubital vein. Student's t-test was used to compare atypical and conventional groups. RESULTS: There was no significant difference in age, gender, duration of illness, period of drug consumption, and age at onset of illness in the two groups. Patients in the atypical group used clozapine and risperidone (46.9%) more than olanzapine. In the conventional group 81.3% of patients used phenothiazines. Comparison between lipid profile in the conventional and atypical groups showed a significantly higher mean in TC (P = 0.01), LDL (P = 0.03), and Apo B (P = 0.01) in conventional group than the atypical group. CONCLUSION: In schizophrenic patients, the level of lipid profile had been increased in both atypical and conventional antipsychotic users, especially conventional users, so the effect of antipsychotic drugs should be investigated periodically.

Roohafza H; Khani A; Afshar H; Garakyaraghi M; Amirpour A; Ghodsi B

2013-05-01

15

CONPAS 1.0 (CONtainment Performance Analysis System). User`s manual  

Energy Technology Data Exchange (ETDEWEB)

CONPAS (CONtainment Performance Analysis System) is a verified computer code package to integrate the numerical, graphical, and results-operation aspects of Level 2 probabilistic safety assessments (PSA) for nuclear power plants automatically under a PC window environment. Compared with the existing DOS-based computer codes for Level 2 PSA, the most important merit of the window-based computer code is that user can easily describe and quantify the accident progression models, and manipulate the resultant outputs in a variety of ways. As a main logic for accident progression analysis, CONPAS employs a concept of the small containment phenomenological event tree (CPET) helpful to trace out visually individual accident progressions and of the large supporting event tree (LSET) for its detailed quantification. For the integrated analysis of Level 2 PSA, the code utilizes four distinct, but closely related modules; (1) ET Editor for construction of several event tree models describing the accident progressions, (2) Computer for quantification of the constructed event trees and graphical display of the resultant outputs, (3) Text Editor for preparation of input decks for quanification and utilization of calculational results, and (4) Mechanistic Code Plotter for utilization of results obtained from severe accident analysis codes. Compared with other existing computer codes for Level 2 PSA, the CONPAS code provides several advanced features: computational aspects including systematic uncertainty analysis, importance analysis, sensitivity analysis and data interpretation, reporting aspects including tabling and graphic as well as user-friend interface. 10 refs. (Author) .new.

Ahn, Kwang Il; Jin, Young Ho [Korea Atomic Energy Research Institute, Daeduk (Korea, Republic of)

1996-04-01

16

Composing user models through logic analysis.  

UK PubMed Central (United Kingdom)

The evaluation of tutorial strategies, interface designs, and courseware content is an area of active research in the medical education community. Many of the evaluation techniques that have been developed (e.g., program instrumentation), commonly produce data that are difficult to decipher or to interpret effectively. We have explored the use of decision tables to automatically simplify and categorize data for the composition of user models--descriptions of student's learning styles and preferences. An approach to user modeling that is based on decision tables has numerous advantages compared with traditional manual techniques or methods that rely on rule-based expert systems or neural networks. Decision tables provide a mechanism whereby overwhelming quantities of data can be condensed into an easily interpreted and manipulated form. Compared with conventional rule-based expert systems, decision tables are more amenable to modification. Unlike classification systems based on neural networks, the entries in decision tables are readily available for inspection and manipulation. Decision tables, descriptions of observations of behavior, also provide automatic checks for ambiguity in the tracking data.

Bergeron BP; Shiffman RN; Rouse RL; Greenes RA

1991-01-01

17

Composing user models through logic analysis.  

Science.gov (United States)

The evaluation of tutorial strategies, interface designs, and courseware content is an area of active research in the medical education community. Many of the evaluation techniques that have been developed (e.g., program instrumentation), commonly produce data that are difficult to decipher or to interpret effectively. We have explored the use of decision tables to automatically simplify and categorize data for the composition of user models--descriptions of student's learning styles and preferences. An approach to user modeling that is based on decision tables has numerous advantages compared with traditional manual techniques or methods that rely on rule-based expert systems or neural networks. Decision tables provide a mechanism whereby overwhelming quantities of data can be condensed into an easily interpreted and manipulated form. Compared with conventional rule-based expert systems, decision tables are more amenable to modification. Unlike classification systems based on neural networks, the entries in decision tables are readily available for inspection and manipulation. Decision tables, descriptions of observations of behavior, also provide automatic checks for ambiguity in the tracking data. PMID:1807690

Bergeron, B P; Shiffman, R N; Rouse, R L; Greenes, R A

1991-01-01

18

Social network based microblog user behavior analysis  

Science.gov (United States)

The influence of microblog on information transmission is becoming more and more obvious. By characterizing the behavior of following and being followed as out-degree and in-degree respectively, a microblog social network was built in this paper. It was found to have short diameter of connected graph, short average path length and high average clustering coefficient. The distributions of out-degree, in-degree and total number of microblogs posted present power-law characters. The exponent of total number distribution of microblogs is negatively correlated with the degree of each user. With the increase of degree, the exponent decreases much slower. Based on empirical analysis, we proposed a social network based human dynamics model in this paper, and pointed out that inducing drive and spontaneous drive lead to the behavior of posting microblogs. The simulation results of our model match well with practical situation.

Yan, Qiang; Wu, Lianren; Zheng, Lan

2013-04-01

19

Safety Analysis of the Druide User-Interface  

UK PubMed Central (United Kingdom)

s and compressed postscriptfiles are available via http://svrc.it.uq.edu.auSafety Analysis of the Druide User-InterfaceAndrew HusseyAbstractWe give a model for hazard analysis of user-interaction based on HAZOP. We consider the roleof formal specification and user-interface design in such a hazard analysis. Formal specificationscan be used to describe tasks, while the user-interface design describes executions to effect tasks.We illustrate the user-interface hazard analysis process by considering execution errors for a"data-link" air-traffic control system and suggesting possible improvements.Keywords: safety critical, HAZOP, formal specification, user-interface design.1 IntroductionMany computer systems provide human users with a presentation of a physical system and allow theuser to affect the physical system by manipulating objects in the presentation. The correctness of sucha computer system is safety critical when the potential arises for injury or loss o...

Andrew Hussey

20

User controlled analysis of gamma ray spectra  

International Nuclear Information System (INIS)

The program 'ANGES' was designed as a general purpose high-resolution ? ray spectrometry program. It offers all main features as commercial software packages except control of acquisition process. The program is able to perform automatic analysis of spectra but it is announced as 'user controlled' because it supplies all intermediate results and gives the opportunity these results to be analyzed and corrected by the user. ANGES offers: multi document Windows interface; detailed visualization of spectra; nuclide library based on another contribution to CRP; energy and FWHM calibrations calculated by means of orthonormal polynomial fitting; peak processing engine based on a non-linear LSQ method for fitting peaks; peak location engine, based on first derivative method is provided to ease the preparation of a spectrum for processing; two methods for efficiency calibration (an efficiency calibration curve and reference table); peak identification and activity calculation procedure; a number of corrections (true coincidence summing, background correction, pile up rejection and so on); an option for processing series of similar spectra. The fitting procedure can be applied to the whole spectrum or to a single Region-of-Interest (ROI). The assumed peak shape is pure Gaussian. All peaks in single ROI are assumed to have the same FWHM. The maximum number of peaks in a single ROI is restricted to 25, the maximum ROI length is 512 cls, and the baseline is described with a polynomial of a degree up to 4. As a result of the identification procedure a report file is issued containing spectrum processing results, list of identified and not identified peaks, list of identified nuclides and background nuclides. (author)

2002-01-01

 
 
 
 
21

Reactor safety analysis computer program features that enhance user productivity  

Energy Technology Data Exchange (ETDEWEB)

The MARY computer program has enabled higher user productivity in performing non-LOCA safety analyses for the SRS K reactor. The user productivity features of the code have been facilitated by having ownership of the program within the safety analysis organization, i.e., the code`s users direct its programmers. Enhancements to user productivity have received high priority in planning modifications to the code.

Burnett, T.W.T.; Cleaver, B.H.; Fields, C.C.; Finfrock, S.H.; McKinney, J.S.; Wooten, L.A.

1994-12-31

22

User image mismatch in anesthesia alarms: a cognitive systems analysis.  

UK PubMed Central (United Kingdom)

In this study, principles of Cognitive Systems Engineering are used to better understand the human-machine interaction manifesting in the use of anaesthesia alarms. The hypothesis is that the design of the machine incorporates built-in assumptions of the user that are discrepant with the anaesthesiologist's self-assessment, creating 'user image mismatch'. Mismatch was interpreted by focusing on the 'user image' as described from the perspectives of both machine and user. The machine-embedded image was interpreted through document analysis. The user-described image was interpreted through user (anaesthesiologist) interviews. Finally, an analysis was conducted in which the machine-embedded and user-described images were contrasted to identify user image mismatch. It is concluded that analysing user image mismatch expands the focus of attention towards macro-elements in the interaction between man and machine. User image mismatch is interpreted to arise from complexity of algorithm design and incongruity between alarm design and tenets of anaesthesia practice. Practitioner Summary: Cognitive system engineering principles are applied to enhance the understanding of the interaction between anaesthesiologist and alarm. The 'user image' is interpreted and contrasted from the perspectives of machine as well as the user. Apparent machine-user mismatch is explored pertaining to specific design features.

Raymer KE; Bergström J

2013-09-01

23

CGAS: comparative genomic analysis server.  

UK PubMed Central (United Kingdom)

SUMMARY: Comparative approach is one of the most essential methods for extracting functional and evolutionary information from genomic sequences. So far, a number of sequence comparison tools have been developed, and most are either for on-site use, requiring program installation but providing a wide variety of analyses, or for the online search of user's sequences against given databases on a server. We newly devised an Asynchronous JavaScript and XML (Ajax)-based system for comparative genomic analyses, CGAS, with highly interactive interface within a browser, requiring no software installation. The current version, CGAS version 1, provides functionality for viewing similarity relationships between user's sequences, including a multiple dot plot between sequences with their annotation information. The scrollbar-less 'draggable' interface of CGAS is implemented with Google Maps API version 2. The annotation information associated with the genomic sequences compared is synchronously displayed with the comparison view. The multiple-comparison viewer is one of the unique functionalities of this system to allow the users to compare the differences between different pairs of sequences. In this viewer, the system tells orthologous correspondences between the sequences compared interactively. This web-based tool is platform-independent and will provide biologists having no computational skills with opportunities to analyze their own data without software installation and customization of the computer system. Availability and Implementation: CGAS is available at http://cgas.ist.hokudai.ac.jp/.

Itoh M; Watanabe H

2009-04-01

24

The Radiological Safety Analysis Computer Program (RSAC-5) user`s manual. Revision 1  

Energy Technology Data Exchange (ETDEWEB)

The Radiological Safety Analysis Computer Program (RSAC-5) calculates the consequences of the release of radionuclides to the atmosphere. Using a personal computer, a user can generate a fission product inventory from either reactor operating history or nuclear criticalities. RSAC-5 models the effects of high-efficiency particulate air filters or other cleanup systems and calculates decay and ingrowth during transport through processes, facilities, and the environment. Doses are calculated through the inhalation, immersion, ground surface, and ingestion pathways. RSAC+, a menu-driven companion program to RSAC-5, assists users in creating and running RSAC-5 input files. This user`s manual contains the mathematical models and operating instructions for RSAC-5 and RSAC+. Instructions, screens, and examples are provided to guide the user through the functions provided by RSAC-5 and RSAC+. These programs are designed for users who are familiar with radiological dose assessment methods.

Wenzel, D.R.

1994-02-01

25

Factors affecting mobile users' switching intentions: a comparative study between the brazilian and german markets  

Scientific Electronic Library Online (English)

Full Text Available Abstract in english In the competitive wireless market, there are many drivers behind customer defection. Switching barriers, service performance, perceived value in carriers' offers, satisfaction and other constructs can play a pivotal role in customer switching processes among carriers. This study attempts to compare the influence of these factors, taking into account cultural similarities and dissimilarities, between Brazilian and German mobile users. A survey was conducted on two samples (more) , comprising 202 users in Brazil and 200 users in Germany, with culture being employed as a context variable to compare their behavior. Analysis by means of multi-group structural equation modeling suggests that, in both countries, customer satisfaction, service performance and perceived value have important roles in defining customer switching intentions, while switching barriers did not prove to have significant effects upon switching behavior. The results also suggest that the two cultures are sufficiently similar (considering the sample and the variables involved in the model) to not present differences in the studied consumer behavior, except for the effect of service performance upon satisfaction.

Martins, Rodrigo C.; Hor-Meyll, Luis Fernando; Ferreira, Jorge Brantes

2013-09-01

26

Trajectory Based Behavior Analysis for User Verification  

Science.gov (United States)

Many of our activities on computer need a verification step for authorized access. The goal of verification is to tell apart the true account owner from intruders. We propose a general approach for user verification based on user trajectory inputs. The approach is labor-free for users and is likely to avoid the possible copy or simulation from other non-authorized users or even automatic programs like bots. Our study focuses on finding the hidden patterns embedded in the trajectories produced by account users. We employ a Markov chain model with Gaussian distribution in its transitions to describe the behavior in the trajectory. To distinguish between two trajectories, we propose a novel dissimilarity measure combined with a manifold learnt tuning for catching the pairwise relationship. Based on the pairwise relationship, we plug-in any effective classification or clustering methods for the detection of unauthorized access. The method can also be applied for the task of recognition, predicting the trajectory type without pre-defined identity. Given a trajectory input, the results show that the proposed method can accurately verify the user identity, or suggest whom owns the trajectory if the input identity is not provided.

Pao, Hsing-Kuo; Lin, Hong-Yi; Chen, Kuan-Ta; Fadlil, Junaidillah

27

Supporting the habit: income generation activities of frequent crack users compared with frequent users of other hard drugs.  

Science.gov (United States)

US Federal sentencing guidelines punish possession of crack cocaine very differently from powder cocaine, based partially upon the assumption that crack users engage more frequently in criminal behavior to pay for their habit. This article analyzed frequent users (those who have used at least 15 of the last 30 days) of crack with subgroups of less frequent hard drug users in terms of various income generation activities reported during the past 30 days. The sample consists of 602 African-Americans who were current (in past 30 days) users or sellers of cocaine powder, crack, and heroin. They were carefully recruited from randomly selected blocks in the Central Harlem area of New York City and interviewed extensively in 1998-1999. Their IGAs were classified into six categories. Compared with not-frequent (less than 15 days) hard drug users, frequent crack and multiple hard drug users were equally likely to be involved in drug distribution activities, but were significantly less likely to have full-time jobs, part-time jobs, aid to families with dependent children or welfare support. They had much higher odds ratios for non-drug related illegal (theft mainly) income generation activities and sex work among women. Often, gender and birth cohort variables had higher odds ratios with specific income generation activities than the frequent use of the primary drug(s). This evidence suggests that very frequent crack users have been stigmatized by, are largely excluded from, and perform very marginal economic roles in the legal economic system (jobs and welfare), the illegal economic system, and even in the hard drug distribution system. PMID:11543989

Cross, J C; Johnson, B D; Davis, W R; Liberty, H J

2001-10-01

28

A Comparative Analysis of Task Modeling Notations  

Directory of Open Access Journals (Sweden)

Full Text Available Entender la forma de cómo realizar el trabajo en las organizaciones es parte importante para alcanzar los objetivos, los modelos de tareas ayudan a realizar esta tarea. Estos modelos son la intersección entre el diseño de la interfaz de usuario y enfoques sistemáticos. Existen diferentes niveles de abstracción para representar un modelo de tarea. Cuando los diseñadores requieren sólo especificar los requisitos con respecto a cómo las actividades se deben realizar, consideran sólo las tareas de alto nivel. Por otro lado, cuando los diseñadores tienen por objeto proporcionar indicaciones precisas entonces las actividades están representadas con mayor granularidad, incluidos los aspectos relacionados con el modelo de diálogo de una interfaz de usuario (que define cómo las acciones del sistema y el usuario pueden ser secuenciados). En este artículo se presenta un análisis comparativo de modelos de tareas con el fin de identificar conceptos comunes. Este análisis comparativo se basa en tres criterios: información, la cobertura conceptual y expresividad. La fusión de los resultados derivó en un meta-modelo robusto que cubre la mayoría de las situaciones concernientes al modelado de tareas, incluyendo: la interacción de varios usuarios, los sistemas de información, el flujo de trabajo, y CSCW.Task Models describe how to perform activities to reach users' goals. Task models represent the intersection between user interface design and more systematic approaches. Task models can be represented at various abstraction levels. When designers want to specify only requirements regarding how activities should be performed, they consider only the main high-level tasks. On the other hand, when designers aim to provide precise design indications then the activities are represented at a small granularity, thus including aspects related to the dialogue model of a user interface (which defines how system and user actions can be sequenced). In this paper a comparative analysis of selected models involving multiple users in an interaction is provided in order to identify concepts which are underexplored in today's multi-user interaction task modeling. This comparative analysis is based on three families of criteria: information criteria, conceptual coverage, and expressiveness. Merging the meta-models of the selected models enables to come up with a broader meta-model that could be instantiated in most situations involving multi-user interaction, like workflow information systems, CSCW.

Josefina García-Guerrero; Juan González-Calleros; Jean Vanderdonckt

2012-01-01

29

Web Sites that Compare Loans Gain Users, Lose Lenders  

Science.gov (United States)

|Web sites that allow borrowers to compare student loans proliferated in the wake of last year's scandals that exposed conflicts of interest in the lending industry. Now the credit crunch is shifting demand for loan-comparison sites again, providing both new challenges and opportunities. More financial-aid officers are also pointing their students…

Norton, Ingrid

2008-01-01

30

Comparing user interaction with low and high fidelity prototypes of tabletop surfaces  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper describes a comparative study between the usage of low-fidelity and a high-fidelity prototyping for the creation of multi-user multi-touch interfaces. The multi-touch interface presented in this paper allows users to collaboratively search for existing multimedia content, create new compo...

De Roeck, Dries; Derboven, Jan; Verstraete, Mathijs; Geerts, David; SCHNEIDER BARNES, Jan; LUYTEN, Kris

31

User Behavior and IM Topology Analysis  

Directory of Open Access Journals (Sweden)

Full Text Available The use of Instant Messaging, or IM, has become widely adopted in private and corporate communication. They can provide instant, multi-directed and multi-types of communications which make the message spreading in IM different from those in WWW, Blog and email systems. Groups have great impacts on message spreading in IM. The research demonstrates the power law distribution of groups in MSN with parameter ? ranging from 0.76 to 1.22. Based on an online survey, IM user behavior is analyzed from the aspects of message sending/receiving and contacts maintaining. According to the results, degree distribution of users has a peak value and doesn't present power law character. This may indicate that social networks should be a prospective direction for the research on IM topology.

Qiang Yan; Xiaoyan Huang

2008-01-01

32

Statistical Analysis and Learning Method on Users' Feedbacks  

Directory of Open Access Journals (Sweden)

Full Text Available Problem statement: The purpose of this study was constructing an effective algorithm in order to learn the users? feedbacks from their displayed visualization. This is due to existing visualization tools typically involve presenting network data regardless of considering level of network data knowledge among different levels of computer users. The machine learning algorithm has been applied in order to find the most effective statistical analysis and learning algorithm in learning users? feedbacks. Approach: The objectives of this study were to conduct statistical analysis and learning algorithm model for different levels of computer users? feedbacks and procedure to test the classifier. Results: WEKA the machine learning workbench that supports many activities of machine learning practitioners will be used to implement the proposed algorithm. The implemented program will work as training testing model. Conclusion: We can produce an adaptive visualization to the different levels of computer users as we have learnt their feedbacks (behavior) and update the classifier model.

Doris H.T. Wong; Sureswaran Ramadass

2011-01-01

33

Preliminary analysis of GASIS user needs  

Energy Technology Data Exchange (ETDEWEB)

The GASIS (Gas Information System) project is a three year effort to develop a personal computer-based (CD-ROM) natural gas database and information system for the United States. GASIS will have two components: a ``Source Directory`` documenting natural gas supply-related databases and information centers and a ``Reservoir Data System`` of information for individual gas reservoirs. The Source Directory will document the location, characteristics, and accessibility of natural gas supply information sources, such as bibliographic databases, engineering and/or geological data compilations, and natural gas information centers. The Data System will be the largest portion of GASIS and will contain geological and engineering data at the reservoir level. The GASIS project will involve the compilation of existing public domain data, excerpts from Dwight`s databases, and the collection of new reservoir data. Data assembly and collection will be prioritized by the User Needs study. A ``User Needs`` assessment for the planned GASIS data system has been underway since September of this year. It is designed to cover all major segments of the gas industry, including major and independent producers, state and federal agencies, pipelines, research organizations, banks, and service companies. The objectives of the evaluation are: To design GASIS to meet the needs of industry and the research community; to determine potential applications for GASIS in order to better design the database; to prioritize data categories and specific data collection activities; to evaluate industry software and data exchange requirements.

Vidas, E.H.; Hugman, R.H.

1993-12-31

34

Comparative Analysis of University Sports  

Directory of Open Access Journals (Sweden)

Full Text Available The authors compare collegiate sports governance in Turkey and the United States using comparative analysis techniques. Using the U.S. National Collegiate Athletic Association as a model, the authors evaluate structural and political aspects of the Turkish University Sports Federation to identify new potentialities for its growth and for the support of collegiate sports within Turkey.

?. ?sra ?rturan; Natasha Brison; Tiffany Allen

2012-01-01

35

The Radiological Safety Analysis Computer Program (RSAC-5) user's manual  

International Nuclear Information System (INIS)

[en] The Radiological Safety Analysis Computer Program (RSAC-5) calculates the consequences of the release of radionuclides to the atmosphere. Using a personal computer, a user can generate a fission product inventory from either reactor operating history or nuclear criticalities. RSAC-5 models the effects of high-efficiency particulate air filters or other cleanup systems and calculates decay and ingrowth during transport through processes, facilities, and the environment. Doses are calculated through the inhalation, immersion, ground surface, and ingestion pathways. RSAC+, a menu-driven companion program to RSAC-5, assists users in creating and running RSAC-5 input files. This user's manual contains the mathematical models and operating instructions for RSAC-5 and RSAC+. Instructions, screens, and examples are provided to guide the user through the functions provided by RSAC-5 and RSAC+. These programs are designed for users who are familiar with radiological dose assessment methods

1994-01-01

36

TRANSNET: a user-accessible network of transportation analysis models  

International Nuclear Information System (INIS)

Models and associated data bases, developed under the sponsorship of the Department of Energy (DOE) through the Transportation Technology Center at Sandia National Laboratories, have been used to support transportation analysis efforts for specific sites and for the assessments of the impacts of transportation of specific waste forms to processing/storage sites. TRANSNET, an interactive computer network, was developed to allow outside users access to these models. TRANSNET contains the most recent versions of models developed under DOE/TTC sponsorship - code modifications that have been made since the last published documentation is noted to the user on the TRANSNET screens. To permit a greater spectrum of users to utilize the models, considerable attention has been given to making the models user-friendly and in providing default data sets for typical problems. TRANSNET access and use is limited to support of DOE related program activities; for such activities there are currently no access or user charges

1987-01-01

37

Beyond Categories: A Structural Analysis of the Social Representations of Information Users' Collective Perceptions on 'Relevance'  

Directory of Open Access Journals (Sweden)

Full Text Available Relevance has a long history of scholarly investigation and discussion in information science. One of its notable concepts is that of 'user-based' relevance. The purpose of this study is to examine how users construct their perspective on the concept of relevance; to analyze what the constituent elements (facets) of relevance are, in terms of core-periphery status; and to compare the difference of constructions of two groups of users (information users vs. information professionals) as applied with a social representations theory perspective. Data were collected from 244 information users and 123 information professionals through use of a free word association method. Three methods were employed to analyze data: (1) content analysis was used to elicit 26 categories (facets) of the concept of relevance; (2) structural analysis of social representations was used to determine the core-periphery status of those facets in terms of coreness, sum of similarity, and weighted frequency; and, (3) maximum tree analysis was used to present and compare the differences between the two groups. Elicited categories in this study overlap with the ones from previous relevance studies, while the findings of a core-periphery analysis show that Topicality, User-needs, Reliability/Credibility, and Importance are configured as core concepts for the information user group, while Topicality, User-needs, Reliability/Credibility, and Currency are core concepts for the information professional group. Differences between the social representations of relevance revealed that Topicality was similar to User-needs and to Importance. Author is closely related to Title while Reliability/Credibility is linked with Currency. Easiness/Clarity is similar to Accuracy. Overall, information users and professionals function with a similar social collective of shared meanings for the concept of relevance. The overall findings identify the core and periphery concepts of relevance and their relationships in terms of coreness, similarity, and weighted frequency.

Boryung Ju; Daniel O. O’Connor

2013-01-01

38

Comparing two anesthesia information management system user interfaces: a usability evaluation.  

UK PubMed Central (United Kingdom)

INTRODUCTION: Anesthesia information management systems (AIMS) have been developed by multiple vendors and are deployed in thousands of operating rooms around the world, yet not much is known about measuring and improving AIMS usability. We developed a methodology for evaluating AIMS usability in a low-fidelity simulated clinical environment and used it to compare an existing user interface with a revised version. We hypothesized that the revised user interface would be more useable. METHODS: In a low-fidelity simulated clinical environment, twenty anesthesia providers documented essential anesthetic information for the start of the case using both an existing and a revised user interface. Participants had not used the revised user interface previously and completed a brief training exercise prior to the study task. All participants completed a workload assessment and a satisfaction survey. All sessions were recorded. Multiple usability metrics were measured. The primary outcome was documentation accuracy. Secondary outcomes were perceived workload, number of documentation steps, number of user interactions, and documentation time. The interfaces were compared and design problems were identified by analyzing recorded sessions and survey results. RESULTS: Use of the revised user interface was shown to improve documentation accuracy from 85.1% to 92.4%, a difference of 7.3% (95% confidence interval [CI] for the difference 1.8 to 12.7). The revised user interface decreased the number of user interactions by 6.5 for intravenous documentation (95% CI 2.9 to 10.1) and by 16.1 for airway documentation (95% CI 11.1 to 21.1). The revised user interface required 3.8 fewer documentation steps (95% CI 2.3 to 5.4). Airway documentation time was reduced by 30.5 seconds with the revised workflow (95% CI 8.5 to 52.4). There were no significant time differences noted in intravenous documentation or in total task time. No difference in perceived workload was found between the user interfaces. Two user interface design problems were identified in the revised user interface. DISCUSSION: The usability of anesthesia information management systems can be evaluated using a low-fidelity simulated clinical environment. User testing of the revised user interface showed improvement in some usability metrics and highlighted areas for further revision. Vendors of AIMS and those who use them should consider adopting methods to evaluate and improve AIMS usability.

Wanderer JP; Rao AV; Rothwell SH; Ehrenfeld JM

2012-11-01

39

CMS Configuration Editor: GUI based application for user analysis job  

International Nuclear Information System (INIS)

[en] We present the user interface and the software architecture of the Configuration Editor for the CMS experiment. The analysis workflow is organized in a modular way integrated within the CMS framework that organizes in a flexible way user analysis code. The Python scripting language is adopted to define the job configuration that drives the analysis workflow. It could be a challenging task for users, especially for newcomers, to develop analysis jobs managing the configuration of many required modules. For this reason a graphical tool has been conceived in order to edit and inspect configuration files. A set of common analysis tools defined in the CMS Physics Analysis Toolkit (PAT) can be steered and configured using the Config Editor. A user-defined analysis workflow can be produced starting from a standard configuration file, applying and configuring PAT tools according to the specific user requirements. CMS users can adopt this tool, the Config Editor, to create their analysis visualizing in real time which are the effects of their actions. They can visualize the structure of their configuration, look at the modules included in the workflow, inspect the dependences existing among the modules and check the data flow. They can visualize at which values parameters are set and change them according to what is required by their analysis task. The integration of common tools in the GUI needed to adopt an object-oriented structure in the Python definition of the PAT tools and the definition of a layer of abstraction from which all PAT tools inherit.

2011-12-23

40

Developing a Protocol for Observational Comparative Effectiveness Research: A User's Guide  

UK PubMed Central (United Kingdom)

The Observational CER User's Guide serves as a resource for investigators and stakeholders when designing observational comparative effectiveness research (CER) studies, particularly those with findings that are intended to translate into decisions or actions. The User's Guide provides principles for designing research that will inform health care decisions of patients and other stakeholders. Furthermore, it serves as a reference for increasing the transparency of the methods used in a study and standardizing the review of protocols through checklists provided in every chapter.

 
 
 
 
41

Users guide to E859 phoswich analysis  

Energy Technology Data Exchange (ETDEWEB)

In this memo the authors describe the analysis path used to transform the phoswich data from raw data banks into cross sections suitable for publication. The primary purpose of this memo is not to document each analysis step in great detail but rather to point the reader to the fortran code used and to point out the essential features of the analysis path. A flow chart which summarizes the various steps performed to massage the data from beginning to end is given. In general, each step corresponds to a fortran program which was written to perform that particular task. The automation of the data analysis has been kept purposefully minimal in order to ensure the highest quality of the final product. However, tools have been developed which ease the non--automated steps. There are two major parallel routes for the data analysis: data reduction and acceptance determination using detailed GEANT Monte Carlo simulations. In this memo, the authors will first describe the data reduction up to the point where PHAD banks (Pass 1-like banks) are created. They the will describe the steps taken in the GEANT Monte Carlo route. Note that a detailed memo describing the methodology of the acceptance corrections has already been written. Therefore the discussion of the acceptance determination will be kept to a minimum and the reader will be referred to the other memo for further details. Finally, they will describe the cross section formation process and how final spectra are extracted.

Costales, J.B.; E859 Collaboration

1992-11-30

42

Dairy Analytics and Nutrient Analysis (DANA) Prototype System User Manual  

Energy Technology Data Exchange (ETDEWEB)

This document is a user manual for the Dairy Analytics and Nutrient Analysis (DANA) model. DANA provides an analysis of dairy anaerobic digestion technology and allows users to calculate biogas production, co-product valuation, capital costs, expenses, revenue and financial metrics, for user customizable scenarios, dairy and digester types. The model provides results for three anaerobic digester types; Covered Lagoons, Modified Plug Flow, and Complete Mix, and three main energy production technologies; electricity generation, renewable natural gas generation, and compressed natural gas generation. Additional options include different dairy types, bedding types, backend treatment type as well as numerous production, and economic parameters. DANA’s goal is to extend the National Market Value of Anaerobic Digester Products analysis (informa economics, 2012; Innovation Center, 2011) to include a greater and more flexible set of regional digester scenarios and to provide a modular framework for creation of a tool to support farmer and investor needs. Users can set up scenarios from combinations of existing parameters or add new parameters, run the model and view a variety of reports, charts and tables that are automatically produced and delivered over the web interface. DANA is based in the INL’s analysis architecture entitled Generalized Environment for Modeling Systems (GEMS) , which offers extensive collaboration, analysis, and integration opportunities and greatly speeds the ability construct highly scalable web delivered user-oriented decision tools. DANA’s approach uses server-based data processing and web-based user interfaces, rather a client-based spreadsheet approach. This offers a number of benefits over the client-based approach. Server processing and storage can scale up to handle a very large number of scenarios, so that analysis of county, even field level, across the whole U.S., can be performed. Server based databases allow dairy and digester parameters be held and managed in a single managed data repository, while allows users to customize standard values and perform individual analysis. Server-based calculations can be easily extended, versions and upgrades managed, and any changes are immediately available to all users. This user manual describes how to use and/or modify input database tables, run DANA, view and modify reports.

Sam Alessi; Dennis Keiser

2012-10-01

43

Primary User Emulation Attacks Analysis for Cognitive Radio Networks Communication  

Directory of Open Access Journals (Sweden)

Full Text Available Cognitive Radio Network is an effective technology and a hot research direction which can solve the problem of deficient resource and revolutionize utilization. And its safety technology attracts more and more researches. Primary user emulation attacks (PUEAs) are typically easy and largely affecting. PUEAs come from both malicious misbehavior secondary users (MMUs) and selfish misbehavior secondary users (SMUs). The former is studied much more deeply than the later one. Distinguishing MMU and SMU, we propose a Four Dimensional Continuous Time Markov Chain model to analyze the communication performance of normal secondary users under PUEAs, and typically affected by SMUs. Furthermore, we compare several PUEA detection schemes. The emulation results indicate that the SMU detection mechanism is essential for the PUEA detection schemes, which can improve the detection effects largely.

Wang Shan-Shan; Luo Xing-Guo; Li Bai-Nan

2013-01-01

44

User-level sentiment analysis incorporating social networks  

CERN Document Server

We show that information about social relationships can be used to improve user-level sentiment analysis. The main motivation behind our approach is that users that are somehow "connected" may be more likely to hold similar opinions; therefore, relationship information can complement what we can extract about a user's viewpoints from their utterances. Employing Twitter as a source for our experimental data, and working within a semi-supervised framework, we propose models that are induced either from the Twitter follower/followee network or from the network in Twitter formed by users referring to each other using "@" mentions. Our transductive learning results reveal that incorporating social-network information can indeed lead to statistically significant sentiment-classification improvements over the performance of an approach based on Support Vector Machines having access only to textual features.

Tan, Chenhao; Tang, Jie; Jiang, Long; Zhou, Ming; Li, Ping

2011-01-01

45

GRAFLAB 2.3 for UNIX - A MATLAB database, plotting, and analysis tool: User`s guide  

Energy Technology Data Exchange (ETDEWEB)

This report is a user`s manual for GRAFLAB, which is a new database, analysis, and plotting package that has been written entirely in the MATLAB programming language. GRAFLAB is currently used for data reduction, analysis, and archival. GRAFLAB was written to replace GRAFAID, which is a FORTRAN database, analysis, and plotting package that runs on VAX/VMS.

Dunn, W.N.

1998-03-01

46

Conversation Analysis and the User Experience  

CERN Multimedia

We provide two case studies in the application of ideas drawn from conversation analysis to the design of technologies that enhance the experience of human conversation. We first present a case study of the design of an electronic guidebook, focusing on how conversation analytic principles played a role in the design process. We then discuss how the guidebook project has inspired our continuing work in social, mobile audio spaces. In particular, we describe some as yet unrealized concepts for adaptive audio spaces.

Woodruff, A; Woodruff, Allison; Aoki, Paul M.

2004-01-01

47

Comparative genomics analysis of the metallomes.  

UK PubMed Central (United Kingdom)

Biological trace metals are needed in small quantities, but used by all living organisms. They are employed in key cellular functions in a variety of biological processes, resulting in the various degree of dependence of organisms on metals. Most effort in the field has been placed on experimental studies of metal utilization pathways and metal-dependent proteins. On the other hand, systemic level analyses of metalloproteomes (or metallomes) have been limited for most metals. In this chapter, we focus on the recent advances in comparative genomics, which provides many insights into evolution and function of metal utilization. These studies suggested that iron and zinc are widely used in biology (presumably by all organisms), whereas some other metals such as copper, molybdenum, nickel, and cobalt, show scattered occurrence in various groups of organisms. For these metals, most user proteins are well characterized and their dependence on a specific element is evolutionarily conserved. We also discuss evolutionary dynamics of the dependence of user proteins on different metals. Overall, comparative genomics analysis of metallomes provides a foundation for the systemic level understanding of metal utilization as well as for investigating the general features, functions, and evolutionary dynamics of metal use in the three domains of life.

Gladyshev VN; Zhang Y

2013-01-01

48

Residence time distribution software analysis. User's manual  

International Nuclear Information System (INIS)

Radiotracer applications cover a wide range of industrial activities in chemical and metallurgical processes, water treatment, mineral processing, environmental protection and civil engineering. Experiment design, data acquisition, treatment and interpretation are the basic elements of tracer methodology. The application of radiotracers to determine impulse response as RTD as well as the technical conditions for conducting experiments in industry and in the environment create a need for data processing using special software. Important progress has been made during recent years in the preparation of software programs for data treatment and interpretation. The software package developed for industrial process analysis and diagnosis by the stimulus-response methods contains all the methods for data processing for radiotracer experiments

1996-01-01

49

[The outcome analysis of different age paragraph hearing aid users].  

UK PubMed Central (United Kingdom)

OBJECTIVE: To compare and analysis outcomes of different age paragraph hearing aid users by questionnaires. METHOD: The questionnaire was deployed to 90 hearing aid users, 40 females and 50 males, with ages between 19 and 80 years-from junior high school education to university education, suffering binaural severe or moderate sensorineural deafness. The subjects were devided into 3 groups, the A group with ages between 19 and 40 years, the B group with ages between 41 and 60 years, the C group with ages between 61 and 80 years. After being fitted with hearing aids for 6 weeks, 6 months and 12 months, SADL and IOI-HA were applied to evaluating 90 subjects. The study was carried out through face to face interview or by telephone. RESULT: There were significant differences in SADL scores of positive effect, service and Personal image among the 3 groups (P < 0.01). The scores of the A group was the highest, and the B group was higher than the C group. On the contrary, there were significant differences in SADL scores of negative effect among the 3 groups (P < 0.01), with the scores of the A group being the lowest, and the B group being lower than the C group. There were also significant differences in IOI-HA scores among the 3 groups (P < 0.01). The scores of the A group was the highest, and the B group was higher than the C group. CONCLUSION: The outcome and satisfaction of hearing aids among different age paragraph is improved with the wearing time growth, but the outcome and satisfaction of hearing aids are decreased with the age growth.

Xu Q; Zhou H; Zhang J; Guo Y; Wang X

2012-05-01

50

Informatics Security Metrics Comparative Analysis  

Directory of Open Access Journals (Sweden)

Full Text Available The informatics security concept is defined. For informatics applications which have a classical structure, the development, current use, maintenance, and reengineering particularities are described for distributed systems and m-applications. Metrics are built for the security of open informatics applications and a method for their validation is proposed. To see when a metric is adequate a comparative analysis is made for each indicator using a representative diversity of data sets for the test.

Ion IVAN; Luckacs BREDA

2007-01-01

51

Multiple-user data acquisition and analysis system  

Energy Technology Data Exchange (ETDEWEB)

The nuclear physics program at the Brookhaven National Laboratory High Flux Beam Reactor (HFBR) employs a pair of PDP-11 computers for the dual functions of data acquisition and analysis. The data acquisition is accomplished through CAMAC and features a microprogrammed branch driver to accommodate various experimental inputs. The acquisition computer performs the functions of multi-channel analyzers, multiscaling and time-sequenced multichannel analyzers and gamma-ray coincidence analyzers. The data analysis computer is available for rapid processing of data tapes written by the acquisition computer. The ability to accommodate many users is facilitated by separating the data acquisition and analysis functions, and allowing each user to tailor the analysis to the specific requirements of his own experiment. The system is to be upgraded soon by the introduction of a dual port disk to allow a data base to be available to each computer.

Manzella, V.; Chrien, R.E.; Gill, R.L.; Liou, H.I.; Stelts, M.L.

1981-01-01

52

Multiple-user data acquisition and analysis system  

International Nuclear Information System (INIS)

[en] The nuclear physics program at the Brookhaven National Laboratory High Flux Beam Reactor (HFBR) employs a pair of PDP-11 computers for the dual functions of data acquisition and analysis. The data acquisition is accomplished through CAMAC and features a microprogrammed branch driver to accommodate various experimental inputs. The acquisition computer performs the functions of multi-channel analyzers, multiscaling and time-sequenced multichannel analyzers and gamma-ray coincidence analyzers. The data analysis computer is available for rapid processing of data tapes written by the acquisition computer. The ability to accommodate many users is facilitated by separating the data acquisition and analysis functions, and allowing each user to tailor the analysis to the specific requirements of his own experiment. The system is to be upgraded soon by the introduction of a dual port disk to allow a data base to be available to each computer

1981-05-30

53

Sleep quality of benzodiazepine users in nursing homes: a comparative study with nonusers.  

UK PubMed Central (United Kingdom)

OBJECTIVES: We aim to describe subjective sleep quality among long-term users of benzodiazepines (BZDs) in Belgian nursing homes, to compare it to nonusers, and to investigate determinants of poor sleep quality. METHODS: All mentally competent residents from 10 nursing homes were screened and compiled in a group of long-term BZD users or in a group of nonusers based on the medication chart. We collected demographic, functional, and medication characteristics and global and specific sleep parameters using the Pittsburgh Sleep Quality Index (PSQI). Linear regression was used to investigate which parameters were associated with sleep quality. RESULTS: Of the 300 residents, 178 (59%) were long-term BZD users and 122 were nonusers. The 2 groups did not differ in demographic and functional characteristics (mean age, 85.5 y; range, 57-100; 75% women). The users reported significantly more difficulties with falling asleep, had more midnight awakenings, felt less rested in the morning, and had a poorer self-perceived sleep quality compared to nonusers. Sleep duration and time to fall asleep did not differ. The self-perceived sleep quality was mainly determined by difficulties during initiation of sleep. After controlling for demographic, medication, and functional characteristics, BZD use remained strongly associated with poor sleep (r=0.173; P=.003), and a study centre effect (differences among nursing homes) was observed (r=0.229; P<.001). CONCLUSION: Our findings do not support long-term effectiveness of BZDs; long-term users slept more poorly than nonusers and were even more outspoken in users of long-acting BZDs. In future longitudinal comparative studies of sleep quality, unexplained variability needs further assessment with medical, psychologic, and institutional parameters.

Bourgeois J; Elseviers MM; Van Bortel L; Petrovic M; Vander Stichele RH

2013-07-01

54

Boom Analysis Monitor (BAM) System: User Manual and System Description  

Canada Institute for Scientific and Technical Information (Canada)

The sonic Boom Analysis and Measurement (BAM) system is portable, user configurable and is rapidly deployable. The BAM system user's manual is designed to familiarize the user by providing concise steps so that the system can be properly installed and operated. The manual also contains information that will allow the operator to confirm that the system is functioning properly before deployment and contains some basic field-level maintenance information. The system has been developed for and with the assistance of the Air Force Research Laboratory at Wright-Patterson AFB, OH. The BAM system has been designed to detect sonic booms. The system was developed to have superior performance to the existing Boom Event Analyzer Recorder (BEAR) system.

1999-01-01

55

Comparative analysis of Bragg fibers.  

Science.gov (United States)

In this paper, we compare three analysis methods for Bragg fibers, viz. the transfer matrix method, the asymptotic method and the Galerkin method. We also show that with minor modifications, the transfer matrix method is able to calculate exactly the leakage loss of Bragg fibers due to a finite number of H/L layers. This approach is more straightforward than the commonly used Chew's method. It is shown that the asymptotic approximation condition should be satisfied in order to get accurate results. The TE and TM modes, and the band gap structures are analyzed using Galerkin method. PMID:19471526

Guo, Shangping; Albin, Sacharia; Rogowski, Robert

2004-01-12

56

Comparative analysis of Bragg fibers.  

UK PubMed Central (United Kingdom)

In this paper, we compare three analysis methods for Bragg fibers, viz. the transfer matrix method, the asymptotic method and the Galerkin method. We also show that with minor modifications, the transfer matrix method is able to calculate exactly the leakage loss of Bragg fibers due to a finite number of H/L layers. This approach is more straightforward than the commonly used Chew's method. It is shown that the asymptotic approximation condition should be satisfied in order to get accurate results. The TE and TM modes, and the band gap structures are analyzed using Galerkin method.

Guo S; Albin S; Rogowski R

2004-01-01

57

Comparative Analysis of Packet Scheduling Schemes for HSDPA Cellular Networks  

Directory of Open Access Journals (Sweden)

Full Text Available In this paper we present comparison analysis for packet scheduling algorithms for HSDPA (High Speed Downlink Packet Networks). In particular, we analyze the round robin, max C/I and FCDS packet scheduling algorithms in HSDPA by comparing the average throughput, delay and fairness of the users, changing the number of the users in pedestrian and vehicular environment. The results have showed that the number of the users in a given coverage area is very important when choosing which packet scheduling algorithm for HSDPA networks. These results will be very useful for choosing the adequate scheduling algorithm in HSDPA network with aim to satisfy the desired quality of service for the mobile users.

T. Janevski; K. Jakimoski

2009-01-01

58

The high prevalence of substance use disorders among recent MDMA users compared with other drug users: implications for intervention  

Science.gov (United States)

Aim In light of the resurgence in MDMA use and its association with polysubstance use, we investigated the 12-month prevalence of substance use disorders (SUDs) among adult MDMA users to determine whether they are at risk of other drug-related problems that would call for targeted interventions. Methods Data were drawn from the 2006 National Survey on Drug Use and Health. Past-year adult drug users were grouped into three mutually exclusive categories: 1) recent MDMA users, who had used the drug within the past year; 2) former MDMA users, who had a history of using this drug but had not done so within the past year; and 3) other drug users, who had never used MDMA. Logistic regression procedures were used to estimate the association between respondents’ SUDs and MDMA use while adjusting for their socioeconomic status, mental health, age of first use, and history of polydrug use. Results Approximately 14% of adults reported drug use in the past year, and 24% of those past-year drug users reported a history of MDMA use. Recent MDMA users exhibited the highest prevalence of disorders related to alcohol (41%), marijuana (30%), cocaine (10%), pain reliever/opioid (8%), and tranquilizer (3%) use. Adjusted logistic regression analyses revealed that, relative to other drug users, those who had recently used MDMA were twice as likely to meet criteria for marijuana and pain reliever/opioid use disorders. They were also about twice as likely as former MDMA users to meet criteria for marijuana, cocaine, and tranquilizer use disorders. Conclusions Seven out of ten recent MDMA users report experiencing an SUD in the past year. Adults who have recently used MDMA should be screened for possible SUDs to ensure early detection and treatment.

Wu, Li-Tzy; Parrott, Andy C.; Ringwalt, Christopher L.; Patkar, Ashwin A.; Mannelli, Paolo; Blazer, Dan G.

2009-01-01

59

Comparative analysis of collaboration networks  

International Nuclear Information System (INIS)

In this paper we carry out a comparative analysis of the word network as the collaboration network based on the novel by M. Bulgakov 'Master and Margarita', the synonym network of the Russian language as well as the Russian movie actor network. We have constructed one-mode projections of these networks, defined degree distributions for them and have calculated main characteristics. In the paper a generation algorithm of collaboration networks has been offered which allows one to generate networks statistically equivalent to the studied ones. It lets us reveal a structural correlation between word network, synonym network and movie actor network. We show that the degree distributions of all analyzable networks are described by the distribution of q-type.

2011-03-14

60

Mental health recovery on care farms and day centres: a qualitative comparative study of users' perspectives.  

UK PubMed Central (United Kingdom)

Abstract Purpose: Mental health services increasingly incorporate the vision of recovery. This qualitative study analysed and compared experiences of recovery on prevocational services, in order to assess if users make progress towards recovery, relative to a staged recovery model. Method: Data were collected through semi-structured interviews with participants on care farms (n?=?14), work (n?=?7) and creative projects (n?=?5). Results: The transition from past to current lives was described as a progressive, non-linear process, with different stages guided by different goals. Participants on creative projects lacked clear goals, presented less interest in peers and high need for emotional support. Participants on work projects aimed for occupational rehabilitation, but struggled with the patient culture of the peer community. Participants on care farms aimed for daytime occupations and closer contact with society. They experienced care farms as open, real-life work settings where they could exercise responsibility and connect with people. Conclusions: Participants progressed towards recovery, as care farms, work- and creative projects empowered them to leave behind inactive, isolated or disorganized living. In day centres, users focused on self-reflection and personal development (creative projects) or on occupational performance (work projects), whereas on care farms, users fulfilled worker roles in a real-life, open community environment. Implications for Rehabilitation Organized as open communities in real-life settings, care farms facilitate the reflection on personal and social responsibility, and therefore have the potential to help users internalize worker identities and improve their motivation to progress towards recovery. Supervisors on care farms are regarded by users as close contacts within the social networks they develop on the service, a position that allows supervisors to actively engage and promote users' progress towards recovery. Elements of the farm environment (such as the "normal life", presence of family members and visitors, and nature) can serve as anchors for supporting the progress towards recovery.

Iancu SC; Zweekhorst MB; Veltman DJ; van Balkom AJ; Bunders JF

2013-06-01

 
 
 
 
61

Reactor safety analysis computer program features that enhance user productivity  

Energy Technology Data Exchange (ETDEWEB)

This paper describes several design features of the MARY computer program that increase user productivity. The MARY program was used to analyze behavior of the Savannah River Site (SRS) K Reactor during postulated nuclear and thermal-hydraulic transients, such as overpower and underflow events, before K Reactor was placed in cold standby in 1993. These analyses provide the bases for portions of the accident chapter of the K-Reactor Safety Analysis Report.

Burnett, T.W.T. [Westinghouse Electric Corp., Pittsburgh, PA (United States); Cleaver, B.H. [ABB Government Services, Inc. (United States); Fields, C.C.; McKinney, J.S.; Wooten, L.A. [Westinghouse Savannah River Co., Aiken, SC (United States); Finfrock, S.H. [Westinghouse Hanford Co., Richland, WA (United States)

1993-09-01

62

Vascular stiffness in dipping tobacco users - a pulse wave analysis  

Directory of Open Access Journals (Sweden)

Full Text Available Background: Tobacco use in the form of dipping tobacco (DT) is on the rise due its cheaper price, long lasting effect and the official ban on smoking tobacco. Tobacco in any form is known for harmful effect on vital systems in the body such as cardiovascular system (CVS) and respiratory system (RS). Dipping tobacco is also equally harmful on these systems. In the present study, the infleunce of dipping tobacco on the changes in the stiffness of arterial wall is explored. Methods: Blood pressure (BP) and finger arterial pulse (FAP) were recorded in 15 dipping tobaco users and 15 non users of tobacco in any form using Digital polywrite. Data were analysed for statistical significance using SPSS.V.17.0. Results: Dipping tobacco users showed statitically significant increase in arterial wall stiffness leading to high BP compared to the non-users of tobacco. Conclusions: Increased arterial wall stiffness is an important earlier marker for devastating adverse effect of DT on cardiovascular morbidity.

Gladmohesh MI; Rajashree R, Sembulingam K

2011-01-01

63

Comparing four approaches to generalized redirected walking: simulation and live user data.  

UK PubMed Central (United Kingdom)

Redirected walking algorithms imperceptibly rotate a virtual scene and scale movements to guide users of immersive virtual environment systems away from tracking area boundaries. These distortions ideally permit users to explore large and potentially unbounded virtual worlds while walking naturally through a physically limited space. Estimates of the physical space required to perform effective redirected walking have been based largely on the ability of humans to perceive the distortions introduced by redirected walking and have not examined the impact the overall steering strategy used. This work compares four generalized redirected walking algorithms, including Steer-to-Center, Steer-to-Orbit, Steer-to-Multiple-Targets and Steer-to-Multiple+Center. Two experiments are presented based on simulated navigation as well as live-user navigation carried out in a large immersive virtual environment facility. Simulations were conducted with both synthetic paths and previously-logged user data. Primary comparison metrics include mean and maximum distances from the tracking area center for each algorithm, number of wall contacts, and mean rates of redirection. Results indicated that Steer-to-Center out-performed all other algorithms relative to these metrics. Steer-to-Orbit also performed well in some circumstances.

Hodgson E; Bachmann E

2013-04-01

64

User's manual for the Composite HTGR Analysis Program (CHAP-1)  

International Nuclear Information System (INIS)

CHAP-1 is the first release version of an HTGR overall plant simulation program with both steady-state and transient solution capabilities. It consists of a model-independent systems analysis program and a collection of linked modules, each representing one or more components of the HTGR plant. Detailed instructions on the operation of the code and detailed descriptions of the HTGR model are provided. Information is also provided to allow the user to easily incorporate additional component modules, to modify or replace existing modules, or to incorporate a completely new simulation model into the CHAP systems analysis framework

1977-01-01

65

Strategic Analysis of Trust Models for User-Centric Networks  

Directory of Open Access Journals (Sweden)

Full Text Available We present a strategic analysis of a trust model that has recently been proposed for promoting cooperative behaviour in user-centric networks. The mechanism for cooperation is based on a combination of reputation and virtual currency schemes in which service providers reward paying customers and punish non-paying ones by adjusting their reputation, and hence the price they pay for services. We model and analyse this system using PRISM-games, a tool that performs automated verification and strategy synthesis for stochastic multi-player games using the probabilistic alternating-time temporal logic with rewards (rPATL). We construct optimal strategies for both service users and providers, which expose potential risks of the cooperation mechanism and which we use to devise improvements that counteract these risks.

Marta Kwiatkowska; David Parker; Aistis Simaitis

2013-01-01

66

Nimbus-7 ERB Solar Analysis Tape (ESAT) user's guide  

Science.gov (United States)

Seven years and five months of Nimbus-7 Earth Radiation Budget (ERB) solar data are available on a single ERB Solar Analysis Tape (ESAT). The period covered is November 16, 1978 through March 31, 1986. The Nimbus-7 satellite performs approximately 14 orbits per day and the ERB solar telescope observes the sun once per orbit as the satellite crosses the southern terminator. The solar data were carefully calibrated and screened. Orbital and daily mean values are given for the total solar irradiance plus other spectral intervals (10 solar channels in all). In addition, selected solar activity indicators are included on the ESAT. The ESAT User's Guide is an update of the previous ESAT User's Guide (NASA TM 86143) and includes more detailed information on the solar data calibration, screening procedures, updated solar data plots, and applications to solar variability. Details of the tape format, including source code to access ESAT, are included.

Major, Eugene; Hickey, John R.; Kyle, H. Lee; Alton, Bradley M.; Vallette, Brenda J.

1988-11-01

67

GPP user`s guide - a general-purpose postprocessor for wind turbine data analysis  

Energy Technology Data Exchange (ETDEWEB)

GPP (pronounced {open_quotes}jeep{close_quotes}) is a General-Purpose Postprocessor for wind turbine data analysis. The author, a member of the Wind Technology Division (WTD) of the National Renewable Energy Laboratory (NREL), developed GPP to postprocess test data and simulation predictions. GPP reads data into large arrays and allows the user to run many types of analyses on the data stored in memory. It runs on inexpensive computers common in the wind industry. One can even use it on a laptop in the field. The author wrote the program in such a way as to make it easy to add new types of analyses and to port it to many types of computers. Although GPP is very powerful and feature-rich, it is still very easy to learn and to use. Exhaustive error trapping prevents one from losing valuable work due to input errors. GPP will, hopefully, make a significant impact on engineering productivity in the wind industry.

Buhl, M.L. Jr.

1995-01-01

68

A Comparative analysis: QA evaluation questions versus real-world queries  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper presents a comparative analysis of user queries to a web search engine, questions to a Q&A service (answers.com), and questions employed in question answering (QA) evaluations at TREC and CLEF. The analysis shows that user queries to search engines contain mostly content words (i.e. keywo...

Leveling, Johannes

69

[Comparative analysis in artificial nutrition].  

UK PubMed Central (United Kingdom)

INTRODUCTION: It is well known to Hungarian experts in the field of nutrition that hospital inpatients in this country do not have the required nutrition. AIM: To compare data of intensive care national costing analysis from England and intensive care unit in County Hospital, Eger, Hungary in order to advise a cost effective nutrition protocol. METHOD: English data were extracted from the report of Intensive Care National Cost Block Programme, year 1999. The Hungarian data were obtained by top down method from annual costing report of the same year. The authors used Purchasing Power Parity to make international cost comparison between these countries. RESULTS: In proportion to Purchasing Power Parity, the hospital budget per patient for nutrition is more than double in England than in the studied intensive care unit in Hungary. Intensive care units in England spend 1% on nutrition, 13% on drugs and 10% on disposables. There is only 0.2% spent on nutrition, 29.8% on drugs and 8% on disposables in the studied intensive care unit in Hungary. Cost of nutrition per patient day is HUF 117 in Hungary, which is even lower than the hospital budget per patient day for nutrition. CONCLUSION: On the basis of the above findings and literature review as well, the authors set up a cost effective nutrition guideline: 1. Identify malnourished patient. 2. Nutrition can be delayed for 4-5 days in not malnourished patient. 3. Enteral nutrition should always be the first choice. 4. Total parenteral nutrition is beneficial only if given over at least 7 days. 5) It is cost effective to prevent nosocomial infections even at higher cost.

Csomós A; Okrös I

2003-03-01

70

Learning Mobile App Design from User Review Analysis  

Directory of Open Access Journals (Sweden)

Full Text Available This paper presents a new learning environment for developers of mobile apps that merges two quite different views of the same topic. Creative design and system engineering are core issues in the development process that are based on diverging principles. This new learning environment aims to address both points of view by not suppressing one of them but trying to benefit from both. User review content analysis is introduced as a tool to generate information that is useful for both aspects.

Elisabeth Platzer; Otto Petrovic

2011-01-01

71

User-friendly software for Moessbauer spectrum analysis  

International Nuclear Information System (INIS)

A new user-friendly software for analysis of Moessbauer-spectra has been developed. The program makes use of the advantages provided by the current generation of fast personal computers. An Evolution Algorithm1,2 is used for global search of Moessbauer parameters in order to enhance the reliability of the obtained results. Fitting of Lorentzians, Pseudo-Voigt line profiles, and deriving hyperfine-field distributions including correlations and combinations and Moessbauer Line Sharpening by Fourier transformation provide a wide range of applicability. (author). 20 refs., 7 figs.

1996-01-01

72

Systems Analysis Language Translator (SALT): user's guide  

Energy Technology Data Exchange (ETDEWEB)

The Systems Analysis Language Translator (SALT), a systems-analysis and process-simulation computer code for steady-state and dynamic systems, can also be used for optimization and sensitivity studies. The SALT code uses sophisticated numerical techniques, including a hybrid steepest-descent/quasi-Newtonian multidimensional nonlinear equation solver, sequential quadratic programming methods as optimizers, and multistep integration methods for both stiff and nonstiff systems of equations. Based on a preprocessor concept, the code uses a language translator to allow the user great flexibility in specifying a systems-analysis problem using a mostly free format and user-defined labels. The code uses precompiled component models, several flow types, and numerous thermodynamic and transport property routines, including a gas chemical-equilibrium code. The SALT code has been used to study open-cycle and liquid-metal magnetohydrodynamic systems, fuel cells, ocean thermal energy conversion, municipal-solid-waste processing, fusion, breeder reactors, and geothermal and solar-energy systems. 11 refs.

Geyer, H.K.; Berry, G.F.

1985-01-01

73

User's manual of JT-60 experimental data analysis system  

International Nuclear Information System (INIS)

In the Japan Atomic Energy Agency Naka Fusion Institute, a lot of experiments have been conducted by using the large tokamak device JT-60 aiming to realize fusion power plant. In order to optimize the JT-60 experiment and to investigate complex characteristics of plasma, JT-60 experimental data analysis system was developed and used for collecting, referring and analyzing the JT-60 experimental data. Main components of the system are a data analysis server and a database server for the analyses and accumulation of the experimental data respectively. Other peripheral devices of the system are magnetic disk units, NAS (Network Attached Storage) device, and a backup tape drive. This is a user's manual of the JT-60 experimental data analysis system. (author)

2010-01-01

74

Architecture of collaborating frameworks simulation, visualisation, user interface and analysis  

CERN Multimedia

The Anaphe project is an ongoing effort to provide an Object Oriented software environment for data analysis in HENP experiments. A range of commercial and public domain libraries is used to cover basic functionalities; on top of these libraries a set of HENP-specific C++ class libraries for histogram management, fitting, plotting and ntuple-like data analysis has been developed. In order to comply with the user requirements for a command-line driven tool, we have chosen to use a scripting language (Python) as the front-end for a data analysis tool. The loose coupling provided by the consequent use of (AIDA compliant) Abstract Interfaces for each component in combination with the use of shared libraries for their implementation provides an easy integration of existing libraries into modern scripting languages thus allowing for rapid application development. This integration is simplified even further using a specialised toolkit (SWIG) to create "shadow classes" for the Python language, which map the definitio...

Pfeier, A; Ferrero-Merlino, B; Giannitrapani, R; Longo, F; Nieminen, P; Pia, M G; Santin, G

2001-01-01

75

[Assisted human reproduction techniques: determination of parentage and users in comparative law].  

UK PubMed Central (United Kingdom)

The paper undertakes the determination of parentage and users of assisted reproduction techniques in comparative law, particularly in three European Union countries: Italy, France and Spain. The idea of artificially conceived child protection, present in the Italian provision, is substituted, partially in French law, and totally in Spanish law, by an exclusively individualistic outlook, configuring a true ?right to maternity? for married women and for those not living with a male partner (single women, divorced or widowed) or with a female partner (lesbians), and for women inseminated artificially by the semen of the husband before or after their death, and for women already having culminated their fertile life.

Germán Zurriaráin R

2011-05-01

76

Comparative Analysis of Control Strategies  

CERN Document Server

Different ways of modelling quantum control systems, formulating control problems and solving the resulting problems are considered and compared. In particular, we compare the performance of geometric and optimal control, as well as iterative techniques for optimal control design versus local gradient optimization using a Lyapunov-type potential function for two problems of general interest: global control of qubits and entanglement generation in the form of Bell state preparation.

Schirmer, Sonia G; Wang, Xiaoting

2008-01-01

77

Sociological analysis and comparative education  

Science.gov (United States)

It is argued that comparative education is essentially a derivative field of study, in that it borrows theories and methods from academic disciplines. After a brief humanistic phase, in which history and philosophy were central for comparative education, sociology became an important source. In the mid-50's and 60's, sociology in the United States was characterised by Structural Functionalism as a theory, and Social Survey as a dominant methodology. Both were incorporated into the development of comparative education. Increasingly in the 70's, and certainly today, the new developments in sociology are characterised by an attack on Positivism, which is seen as the philosophical position underlying both functionalism and survey methods. New or re-discovered theories with their attendant methodologies included Marxism, Phenomenological Sociology, Critical Theory, and Historical Social Science. The current relationship between comparative education and social science is one of uncertainty, but since social science is seen to be returning to its European roots, the hope is held out for the development of an integrated social theory and method which will provide a much stronger basis for developments in comparative education.

Woock, Roger R.

1981-12-01

78

Quality of Online Chat Reference Answers Differ between Local and Consortium Library Staff: Providing Consortium Staff with More Local Information Can Mitigate these Differences. A Review of: Meert, D.L., & Given, L.M. (2009). Measuring quality in chat reference consortia: A comparative analysis of responses to users’ queries.” College & Research Libraries, 70(1), 71?84.  

Directory of Open Access Journals (Sweden)

Full Text Available Objective – To evaluate the quality of answers from a 24/7 online chat reference service by comparing the responses given by local and consortia library staff using in?house reference standards, and by assessing whether or not the questions were answered in real time.Design – Comparative analysis of online chat reference transcripts.Setting – Large academic library in Alberta, Canada.Subjects – A total of online chat reference transcripts from the first year of consortium service were analyzed for this study. Of these, 252 were answered by local library staff and 226 from consortia (non?local) library staff.Methods – A stratified random sample of 1,402 transcripts were collected from the first year of consortium service (beginning of October to end of April). This method was then applied monthly, resulting in a sample size of 478 transcripts. In the first part of the study, responses were coded within the transcripts with a “yes” or “no” label to determine if they met the standards set by the local university library’s reference management. Reference transaction standards included questions regarding whether or not correct information or instructions were given and if not, whether the user was referred to an authoritative source for the correct information. The second part of the study coded transcripts with a “yes” or “no” designation as to whether the user received an answer from the staff member in “real time” and if not, was further analyzed to determine why the user did not receive a real?time response. Each transcript was coded as reflecting one of four “question categories” that included library user information, request for instruction, request for academic information, and miscellaneous/non?library questions.Main Results – When all question types were integrated, analysis revealed that local library staff met reference transaction standards 94% of the time. Consortia staff met these same standards 82% of the time. The groups showed the most significant differences when separated into the question categories. Local library staff met the standards for “Library User Information” questions 97% of the time, while consortia staff met the standards only 76% of the time. “Request for Instruction” questions were answered with 97% success by local library staff and with 84% success by consortia. Local library staff met the “Request for Academic Information” standards 90% of the time while consortia staff met these standards 87% of the time. For “Miscellaneous Non?Library Information” questions, 93% of local and 83% of consortia staff met the reference transaction standards. For the second part of the study, 89% of local library staff answered the questions in real time, as opposed to only 69% of non?local staff. The three most common reasons for not answering in real time (known as deferment categories) included not knowing the answer (48% local; 40% consortia), technical difficulty (26% local; 16% consortia), and information not being available (15% local; 31% consortia).Conclusion – The results of this research reveal that there are differences in the quality of answers between local and non?local staff when taking part in an online chat reference consortium, although these discrepancies vary depending on the type of question. Providing non?local librarians with the information they need to answer questions accurately and in real time can mitigate these differences.

Laura Newton Miller

2010-01-01

79

User`s guide for a thermal analysis program for small induction machines  

Energy Technology Data Exchange (ETDEWEB)

The report is a user`s guide for two Matlab programs, `ASYTEMPSTAT` and `ASYTEMPTRAN` which calculates the steady-state and time-dependent temperature distributions in cage induction machines. The programs are based on a thermal network with 107 nodes

Kylander, G. [Chalmers Univ. of Technology, Goeteborg (Sweden). Dept. of Electrical Machines and Power Electronics

1995-12-31

80

Utilization of HIV/AIDS treatment services: comparing injecting drug users and other clients  

Directory of Open Access Journals (Sweden)

Full Text Available This study compared healthcare utilization by injection drug users (IDUs) and non-IDUs. Data were abstracted from patients' medical records, admitted on HIV/AIDS treatment centers, between 1986 and 2002, forming a non-concurrent cohort study. Variables included: sociodemographics, HIV/AIDS exposure group, healthcare utilization (consultations, procedures, and prescriptions). Descriptive analyses included age-period and cohort effects. Out of 170 patients, with an average age of 30 years, 39.4% were IDUs, 71.8% were males and had low levels of education. At the first consultation, 86.5% neither received an ARV prescription nor had a request for CD4 or viral load. Injection drug users, as compared to non-IDUs, were less likely to receive ARV prescriptions and requests for CD4 lymphocyte and viral load counts, even though the number of consultations did not differ between the two groups. Healthcare utilization increased in calendar-year in the non-IDUs group, parallel to the implementation of the Brazilian health policy of universal care. However, this favorable trend was not observed among IDUs. Differential outcomes for HIV/AIDS among IDUs, towards worse prognosis, suggest difficulties in terms of adherence and follow-up of ARV therapy in this population.

Melo Angelita Cristine de; Caiaffa Waleska Teixeira; César Cibele Comini; Dantas Ricardo Vieira; Couttolenc Bernard François

2006-01-01

 
 
 
 
81

Automatic generation of user material subroutines for biomechanical growth analysis.  

Science.gov (United States)

The analysis of the biomechanics of growth and remodeling in soft tissues requires the formulation of specialized pseudoelastic constitutive relations. The nonlinear finite element analysis package ABAQUS allows the user to implement such specialized material responses through the coding of a user material subroutine called UMAT. However, hand coding UMAT subroutines is a challenge even for simple pseudoelastic materials and requires substantial time to debug and test the code. To resolve this issue, we develop an automatic UMAT code generation procedure for pseudoelastic materials using the symbolic mathematics package MATHEMATICA and extend the UMAT generator to include continuum growth. The performance of the automatically coded UMAT is tested by simulating the stress-stretch response of a material defined by a Fung-orthotropic strain energy function, subject to uniaxial stretching, equibiaxial stretching, and simple shear in ABAQUS. The MATHEMATICA UMAT generator is then extended to include continuum growth by adding a growth subroutine to the automatically generated UMAT. The MATHEMATICA UMAT generator correctly derives the variables required in the UMAT code, quickly providing a ready-to-use UMAT. In turn, the UMAT accurately simulates the pseudoelastic response. In order to test the growth UMAT, we simulate the growth-based bending of a bilayered bar with differing fiber directions in a nongrowing passive layer. The anisotropic passive layer, being topologically tied to the growing isotropic layer, causes the bending bar to twist laterally. The results of simulations demonstrate the validity of the automatically coded UMAT, used in both standardized tests of hyperelastic materials and for a biomechanical growth analysis. PMID:20887023

Young, Jonathan M; Yao, Jiang; Ramasubramanian, Ashok; Taber, Larry A; Perucchio, Renato

2010-10-01

82

Blog Content and User Engagement - An Insight Using Statistical Analysis.  

Directory of Open Access Journals (Sweden)

Full Text Available Since the past few years organizations have increasingly realized the value of social media in positioning, propagating and marketing the product/service and organization itself. Today every organization be it small or big has realized the essence of creating a space in the World Wide Web. Social Media through its multifaceted platforms has enabled the organizations to propagate their brands. There are a number of social media networks which are helpful in spreading the message to customers. Many organizations are having full time web analytics teams that are regularly trying to ensure that prospectivecustomers are visiting their organization through various forms of social media. Web analytics is foreseen as a tool for Business Intelligence by organizations and there are a large number of analytics tools available for monitoring the visibility of a particular brand on the web. For example, Google has its ownanalytic tool that is very widely used. There are number of free as well as paid analytical tools available on the internet. The objective of this paper is to study what content in a blog present in the social media creates a greater impact on user engagement. The study statistically analyzes the relation between content of the blog and user engagement. The statistical analysis was carried out on a blog of a reputed management institute in Pune to arrive at conclusions.

Apoorva Vikrant Kulkarni; Shaji Joseph; R. Raman; S. Vijayakumar Bharathi; Anuradha Goswami; Bhooshan Kelkar

2013-01-01

83

User's guide for the REBUS-3 fuel cycle analysis capability  

International Nuclear Information System (INIS)

[en] REBUS-3 is a system of programs designed for the fuel-cycle analysis of fast reactors. This new capability is an extension and refinement of the REBUS-3 code system and complies with the standard code practices and interface dataset specifications of the Committee on Computer Code Coordination (CCCC). The new code is hence divorced from the earlier ARC System. In addition, the coding has been designed to enhance code exportability. Major new capabilities not available in the REBUS-2 code system include a search on burn cycle time to achieve a specified value for the multiplication constant at the end of the burn step; a general non-repetitive fuel-management capability including temporary out-of-core fuel storage, loading of fresh fuel, and subsequent retrieval and reloading of fuel; significantly expanded user input checking; expanded output edits; provision of prestored burnup chains to simplify user input; option of fixed-or free-field BCD input formats; and, choice of finite difference, nodal or spatial flux-synthesis neutronics in one-, two-, or three-dimensions

1983-01-01

84

Work-site health promotion of frequent computer users: Comparing selected interventions.  

Science.gov (United States)

OBJECTIVE: Frequent computer use is associated with an increase in musculoskeletal complaints. The present study aims at comparing the relative efficacy of three novel interventions for the preventions of musculoskeletal complaints in frequent computer users. PARTICIPANTS: 93 employees (56 woman, 37 men, mean age 40.1 ± 8.8 years) with frequent computer use. METHODS: Participants were assigned on the basis of preference to one of the following interventions of 8 week duration: Nordic Walking (NW), biofeedback assisted relaxation and stretching (BFB), balance exercises on a wobble board (BAL) or a waiting list control group. Outcome measures were musculoskeletal complaints, emotional well-being, fatigue, job dissatisfaction as well as neuromuscular activity in the neck/shoulder region at rest and during computer work assessed before and after the intervention and at 3 months follow-up. RESULTS: The average number of training-units per week was 2.2 ± 0.8, 5.5 ± 3.5 and 4.1 ± 2.9 for NW, BFB and BAL, respectively. NW led to short and medium term improvement of musculoskeletal complaints, BFB to a short term improvement of musculoskeletal complaints. Effects on the well-being related variables or on neuromuscular activity were not found. BAL had no effect on the studied variables. CONCLUSION: NW and to a limited extent BFB areinterventionspotentially useful for reducing musculoskeletal complaints in frequent computer users. PMID:23324690

Blasche, Gerhard; Pfeffer, Manuela; Thaler, Helga; Gollner, Erwin

2013-01-01

85

Work-site health promotion of frequent computer users: Comparing selected interventions.  

UK PubMed Central (United Kingdom)

OBJECTIVE: Frequent computer use is associated with an increase in musculoskeletal complaints. The present study aims at comparing the relative efficacy of three novel interventions for the preventions of musculoskeletal complaints in frequent computer users. PARTICIPANTS: 93 employees (56 woman, 37 men, mean age 40.1 ± 8.8 years) with frequent computer use. METHODS: Participants were assigned on the basis of preference to one of the following interventions of 8 week duration: Nordic Walking (NW), biofeedback assisted relaxation and stretching (BFB), balance exercises on a wobble board (BAL) or a waiting list control group. Outcome measures were musculoskeletal complaints, emotional well-being, fatigue, job dissatisfaction as well as neuromuscular activity in the neck/shoulder region at rest and during computer work assessed before and after the intervention and at 3 months follow-up. RESULTS: The average number of training-units per week was 2.2 ± 0.8, 5.5 ± 3.5 and 4.1 ± 2.9 for NW, BFB and BAL, respectively. NW led to short and medium term improvement of musculoskeletal complaints, BFB to a short term improvement of musculoskeletal complaints. Effects on the well-being related variables or on neuromuscular activity were not found. BAL had no effect on the studied variables. CONCLUSION: NW and to a limited extent BFB areinterventionspotentially useful for reducing musculoskeletal complaints in frequent computer users.

Blasche G; Pfeffer M; Thaler H; Gollner E

2013-01-01

86

Replacement Energy Cost Analysis Package (RECAP): User's guide. Revision 1  

International Nuclear Information System (INIS)

A microcomputer program called the Replacement Energy Cost Analysis Package (RECAP) has been developed to assist the US Nuclear Regulatory Commission (NRC) in determining the replacement energy costs associated with short-term shutdowns or deratings of one or more nuclear reactors. The calculations are based on the seasonal, unit-specific cost estimates for 1993--1996 previously published in NRC Report NUREG/CR--4012, Vol. 3 (1992), for all 112 US reactors. Because the RECAP program is menu-driven, the user can define specific case studies in terms of such parameters as the units to be included, the length and timing of the shutdown or derating period, the unit capacity factors, and the reference year for reporting cost results. In addition to simultaneous shutdown cases, more complicated situations, such as overlapping shutdown periods or shutdowns that occur in different years, can be examined through the use of a present-worth calculation option

1994-01-01

87

Motives, barriers and quality evaluation in fish consumption situations : Exploring and comparing heavy and light users in Spain and Belgium  

DEFF Research Database (Denmark)

Purpose - The purpose of this paper is to investigate motives and barriers for eating fish among light users and heavy users, to discuss consumer evaluation of fish quality, and to explore the existence of cross-cultural fish consumer  segments. Design/methodology/approach - Qualitative data were collected through six focus group discussions, three in Spain and three in Belgium. In each country, one group consisted of heavy users while two groups included light users. Findings - The same attitudinal motives and barriers for fish consumption can be found in both countries and across user groups, even though fish consumption levels differ considerably. The main motives for eating fish are health and taste, while the main barriers are price perception, smell when cooking fish, and that fish does not deliver the same level of satiety as compared to meat. Big differences are found between countries and user groups with respect to preparation skills and the use of quality cues. Heavy users are very skilled in evaluating fish quality, especially those in Spain, while light users, especially those in Belgium, make seemingly irrational assumptions when evaluating the quality of fish. Research limitations/implications - This study is based on qualitative focus group discussions in two European countries only. Originality/value - This study explores and compares motives, barriers and quality evaluation among heavy and light fish consumers in two European countries. The paper yields valuable insights for further quantitative research into explaining variations in fish consumption, as well as for fish quality evaluation and fish market segmentation studies.

BrunsØ, Karen; Verbeke, Wim

2009-01-01

88

Motives, barriers and quality evaluation in fish consumption situations: Exploring and comparing heavy and light users in Spain and Belgium.  

UK PubMed Central (United Kingdom)

Purpose - The purpose of this paper is to investigate motives and barriers for eating fish among light users and heavy users, to discuss consumer evaluation of fish quality, and to explore the existence of cross-cultural fish consumer segments. Design/methodology/approach - Qualitative data were collected through six focus group discussions, three in Spain and three in Belgium. In each country, one group consisted of heavy users while two groups included light users. Findings - The same attitudinal motives and barriers for fish consumption can be found in both countries and across user groups, even though fish consumption levels differ considerably. The main motives for eating fish are health and taste, while the main barriers are price perception, smell when cooking fish, and that fish does not deliver the same level of satiety as compared to meat. Big differences are found between countries and user groups with respect to preparation skills and the use of quality cues. Heavy users are very skilled in evaluating fish quality, especially those in Spain, while light users, especially those in Belgium, make seemingly irrational assumptions when evaluating the quality of fish. Research limitations/implications - This study is based on qualitative focus group discussions in two European countries only. Originality/value - This study explores and compares motives, barriers and quality evaluation among heavy and light fish consumers in two European countries. The paper yields valuable insights for further quantitative research into explaining variations in fish consumption, as well as for fish quality evaluation and fish market segmentation studies.

Brunso Karen; Verbeke Wim; Olsen SveinOttar; Jeppesen LisbethFruensgaard

2009-01-01

89

Development of Point Kernel Shielding Analysis Computer Program Implementing Recent Nuclear Data and Graphic User Interfaces  

International Nuclear Information System (INIS)

In order to comply with revised national regulationson radiological protection and to implement recent nuclear data and dose conversion factors, KOPEC developed a new point kernel gamma and beta ray shielding analysis computer program. This new code, named VisualShield, adopted mass attenuation coefficient and buildup factors from recent ANSI/ANS standards and flux-to-dose conversion factors from the International Commission on Radiological Protection (ICRP) Publication 74 for estimation of effective/equivalent dose recommended in ICRP 60. VisualShield utilizes graphical user interfaces and 3-D visualization of the geometric configuration for preparing input data sets and analyzing results, which leads users to error free processing with visual effects. Code validation and data analysis were performed by comparing the results of various calculations to the data outputs of previous programs such as MCNP 4B, ISOSHLD-II, QAD-CGGP, etc.

2001-01-01

90

A Comparative Analysis of Web Page Ranking Algorithms  

Directory of Open Access Journals (Sweden)

Full Text Available Web is expending day by day and people generally rely on search engine to explore the web. In such a scenario it is the duty of service provider to provide proper, relevant and quality information to the internet user against their query submitted to the search engine. It is a challenge for service provider to provide proper, relevant and quality information to the internet user by using the web page contents and hyperlink between the web pages. This paperdeals with analysis and comparison of web page ranking algorithms based on various parameter to find out their advantages and limitations for the ranking of the web pages. Based on the analysis of different web page ranking algorithms, a comparative study is done to find out their relative strengths and limitations to find out the further scope of research in web page ranking algorithm.

Dilip Kumar Sharma,; A. K. Sharma

2010-01-01

91

RENT CONTROL: A COMPARATIVE ANALYSIS  

Directory of Open Access Journals (Sweden)

Full Text Available Recent case law shows that vulnerable, previously disadvantaged private sector tenants are currently facing eviction orders – and consequential homelessness – on the basis that their leases have expired. In terms of the case law it is evident that once their leases have expired, these households do not have access to alternative accommodation. In terms of the Constitution, this group of marginalised tenants have a constitutional right of access to adequate housing and a right to occupy land with legally secure tenure. The purpose of this article is to critically analyse a number of legislative interventions, and specifically rent control, that were imposed in various jurisdictions in order to provide strengthened tenure protection for tenants. The rationale for this analysis is to determine whether the current South African landlord-tenant regime is able to provide adequate tenure protection for vulnerable tenants and therefore in the process of transforming in line with the Constitution. The legal construction of rent control was adopted in pre-1994 South Africa, England and New York City to provide substantive tenure protection for tenants during housing shortages. These statutory interventions in the different private rental markets were justified on the basis that there was a general need to protect tenants against exploitation by landlords. However, the justification for the persistent imposition of rent control in New York City is different since it protects a minority group of financially weak tenants against homelessness. The English landlord-tenant regime highlights the importance of a well-structured social sector that can provide secure, long-term housing options for low-income households who are struggling to access the private rental sector. Additionally, the English rental housing framework shows that if the social sector is functioning as a "safety net" for low-income households, the private sector would be able to uphold deregulation. In light of these comparisons and the fact that the South African social sector is not functioning optimally yet, the question is whether the South African private sector is able to provide the required level of tenure protection for struggling tenants. Recent case law shows that tenants are at liberty to lodge unfair practice complaints with the Rental Housing Tribunals on the basis that the landlords' ground for termination of the lease constitutes an unfair practice. The Court defined an unfair practice as a practice that unreasonably prejudices the tenants' rights or interests. This judicial development signifies some transformation in the private sector since it allows the Tribunals to scrutinise landlords' reasons for termination of tenancies in light of tenants' personal and socio-economic circumstances. The Tribunals are therefore empowered to weigh the interests of both parties and decide whether to confirm termination of the lease or set aside such termination. In light of this recent development, the Tribunals can provide strengthened tenure protection for destitute tenants on a case by case basis, which incorporates a flexible context-sensitive approach to the provision of secure housing rights in the landlord-tenant framework. This methodology is similar to the German approach. Even though this judicial development is welcomed, it raises some concerns with regard to landlords' property rights and specifically landlords' constitutional property rights since Tribunals are now at liberty to set aside contractually agreed grounds for termination of leases without any statutory guidance. The legislation fails to provide any information regarding legitimate grounds for termination, which might have to be rectified in future. The grounds listed in the rent control legislation should serve as a starting point to determine which grounds for termination of a lease should generally be upheld. However, German landlord-tenant law shows that a statutory ground for termination of a lease should not be imposed in an absolutist fashion but rather place a

Sue-Mari Maass

2012-01-01

92

Rent control: a comparative analysis  

Scientific Electronic Library Online (English)

Full Text Available Abstract in english Recent case law shows that vulnerable, previously disadvantaged private sector tenants are currently facing eviction orders - and consequential homelessness - on the basis that their leases have expired. In terms of the case law it is evident that once their leases have expired, these households do not have access to alternative accommodation. In terms of the Constitution, this group of marginalised tenants have a constitutional right of access to adequate housing and a r (more) ight to occupy land with legally secure tenure. The purpose of this article is to critically analyse a number of legislative interventions, and specifically rent control, that were imposed in various jurisdictions in order to provide strengthened tenure protection for tenants. The rationale for this analysis is to determine whether the current South African landlord-tenant regime is able to provide adequate tenure protection for vulnerable tenants and therefore in the process of transforming in line with the Constitution. The legal construction of rent control was adopted in pre-1994 South Africa, England and New York City to provide substantive tenure protection for tenants during housing shortages. These statutory interventions in the different private rental markets were justified on the basis that there was a general need to protect tenants against exploitation by landlords. However, the justification for the persistent imposition of rent control in New York City is different since it protects a minority group of financially weak tenants against homelessness. The English landlord-tenant regime highlights the importance of a well-structured social sector that can provide secure, long-term housing options for low-income households who are struggling to access the private rental sector. Additionally, the English rental housing framework shows that if the social sector is functioning as a "safety net" for low-income households, the private sector would be able to uphold deregulation. In light of these comparisons and the fact that the South African social sector is not functioning optimally yet, the question is whether the South African private sector is able to provide the required level of tenure protection for struggling tenants. Recent case law shows that tenants are at liberty to lodge unfair practice complaints with the Rental Housing Tribunals on the basis that the landlords' ground for termination of the lease constitutes an unfair practice. The Court defined an unfair practice as a practice that unreasonably prejudices the tenants' rights or interests. This judicial development signifies some transformation in the private sector since it allows the Tribunals to scrutinise landlords' reasons for termination of tenancies in light of tenants' personal and socioeconomic circumstances. The Tribunals are therefore empowered to weigh the interests of both parties and decide whether to confirm termination of the lease or set aside such termination. In light of this recent development, the Tribunals can provide strengthened tenure protection for destitute tenants on a case by case basis, which incorporates a flexible context-sensitive approach to the provision of secure housing rights in the landlord-tenant framework. This methodology is similar to the German approach. Even though this judicial development is welcomed, it raises some concerns with regard to landlords' property rights and specifically landlords' constitutional property rights since Tribunals are now at liberty to set aside contractually agreed grounds for termination of leases without any statutory guidance. The legislation fails to provide any information regarding legitimate grounds for termination, which might have to be rectified in future. The grounds listed in the rent control legislation should serve as a starting point to determine which grounds for termination of a lease should generally be upheld. However, German landlord-tenant law shows that a statutory ground for termination of a lease should not be imposed in an absolutist fash

Maass, S

2012-01-01

93

Web Users Session Analysis Using DBSCAN and Two Phase Utility Mining Algorithms  

Directory of Open Access Journals (Sweden)

Full Text Available One of the important issues in data mining is the interestingness problem. Typically, in a data mining process, the number of patterns discovered can easily exceed the capabilities of a human user to identify interesting results. To address this problem, utility measures have been used to reduce the patterns prior to presenting them to the user. A frequent itemset only reflects the statistical correlation between items, and it does not reflect the semantic significance of the items. This proposed approach uses a utility based itemset mining approach to overcome this limitation. This proposed system first uses Dbscan clustering algorithm which identifies the behavior of the users page visits, order of occurrence of visits. After applying the clustering technique High Two phase utility mining algorithm is applied, aimed at finding itemsets that contribute high utility.Mining web access sequences can discover very useful knowledge from web logs with broad applications. Mining useful Web path traversal patterns is a very important research issue in Web technologies. Knowledge about the frequent Web path traversal patterns enables us to discover the most interesting Websites traversed by the users. However, considering only the binary (presence/absence) occurrences of the Websites in the Web traversal paths, real world scenarios may not be reflected. Therefore, if we consider the time spent by each user as a utility value of a website, more interesting web traversal paths can be discovered using proposed two-phase algorithm. User page visits are sequential in nature. In this paper MSNBC web navigation dataset is used to compare the efficiency and performance in web usage mining is finding the groups which share common interests General Terms Web session mining, log analysis.

G. Sunil Kumar; C.V.K Sirisha; Kanaka Durga.R; A.Devi

2012-01-01

94

Comparing the Performance of Expert User Heuristics and an Integer Linear Program in Aircraft Carrier Deck Operations.  

UK PubMed Central (United Kingdom)

Planning operations across a number of domains can be considered as resource allocation problems with timing constraints. An unexplored instance of such a problem domain is the aircraft carrier flight deck, where, in current operations, replanning is done without the aid of any computerized decision support. Rather, veteran operators employ a set of experience-based heuristics to quickly generate new operating schedules. These expert user heuristics are neither codified nor evaluated by the United States Navy; they have grown solely from the convergent experiences of supervisory staff. As unmanned aerial vehicles (UAVs) are introduced in the aircraft carrier domain, these heuristics may require alterations due to differing capabilities. The inclusion of UAVs also allows for new opportunities for on-line planning and control, providing an alternative to the current heuristic-based replanning methodology. To investigate these issues formally, we have developed a decision support system for flight deck operations that utilizes a conventional integer linear program-based planning algorithm. In this system, a human operator sets both the goals and constraints for the algorithm, which then returns a proposed schedule for operator approval. As a part of validating this system, the performance of this collaborative human-automation planner was compared with that of the expert user heuristics over a set of test scenarios. The resulting analysis shows that human heuristics often outperform the plans produced by an optimization algorithm, but are also often more conservative.

Ryan JC; Banerjee AG; Cummings ML; Roy N

2013-08-01

95

STAR (structural test and analysis database for reliable design) Version 7.1. User`s manual  

Energy Technology Data Exchange (ETDEWEB)

The STAR is characterized by having two supporting functions for developing strength evaluation methods in addition to usual data base management system, an automatic damage calculation function with external programs and an analysis system on accuracy of prediction. This report describes the structure and user information for execution of STAR code. (K. Itami)

Hosogai, Hiromi [Joyo Industries Co. Ltd., Tokai, Ibaraki (Japan); Kawasaki, Nobuchika; Kasahara, Naoto

1998-12-01

96

Matrix analysis of the insider threat (MAIT) user's manual  

International Nuclear Information System (INIS)

MAIT is a sophisticated method for the analysis of safeguards or security systems that determines if single or multiple insiders can covertly sabotage a facility or system, or can covertly divert a resource that is present in the facility or system. The MAIT method provides a detailed, organized way to exhaustively examine the safeguards or security system against these covert threats. An evaluation of this broad scope is beyond the reasonable capability of an analyst working without computer assistance. The MAIT analysis is conducted by first manually collecting detailed facility design data and access and control information for each individual safeguard measure. With this information, the MAIT computer code synthesizes every possible situation and returns data to the analyst concerning those particular events that are not adequately protected. This report replaces the previous user's manual (SAI-78-960-LJ). It includes the details that an analyst needs to know to use the upgraded MAIT evaluation method. The major changes incorporated in the present version of the method include the evaluation of scenarios that span two conditions, the consolidation of theft and sabotage versions of the program and the incorporation and consideration of secondary targets in a path.

1981-01-01

97

Analysis of Web Logs And Web User In Web Mining  

Directory of Open Access Journals (Sweden)

Full Text Available Log files contain information about User Name, IP Address, Time Stamp, Access Request, number of Bytes Transferred, Result Status, URL that Referred and User Agent. The log files are maintained by the web servers. By analysing these log files gives a neat idea about the user. This paper gives a detailed discussion about these log files, their formats, their creation, access procedures, their uses, various algorithms used and the additional parameters that can be used in the log files which in turn gives way to an effective mining. It also provides the idea of creating an extended log file and learning the user behaviour.

L.K. Joshila Grace; V.Maheswari; Dhinaharan Nagamalai

2011-01-01

98

MAKING QUANTAL ANALYSIS MORE CONVENIENT, FAST, AND ACCURATE: USER FRIENDLY SOFTWARE QUANTAN  

Science.gov (United States)

Quantal analysis of synaptic transmission is an important tool for understanding the mechanisms of synaptic plasticity and synaptic regulation. Although several custom-made and commercial algorithms have been created for the analysis of spontaneous synaptic activity, software for the analysis of action potential evoked release remains very limited. The present paper describes a user-friendly software package QUANTAN which has been created to analyze electrical recordings of postsynaptic responses. The program package is written using Borland C++ under Windows platform. QUANTAN employs and compares several algorithms to extract the average quantal content of synaptic responses, including direct quantal counts, the analysis of synaptic amplitudes, and the analysis of integrated current traces. The integration of several methods in one user friendly program package makes quantal analysis of action potential evoked release more reliable and accurate. To evaluate the variability in quantal content, QUANTAN performs deconvolution of the distributions of amplitudes or areas of synaptic responses employing a ridge regression method. Other capabilities of QUANTAN include the analysis of the time-course and stationarity of quantal release. In summary, QUANTAN uses digital records of synaptic responses as an input and computes the distribution of quantal content and synaptic parameters. QUANTAN is freely available to other scholars over the internet.

Bykhovskaia, Maria

2008-01-01

99

Making quantal analysis more convenient, fast, and accurate: user-friendly software QUANTAN.  

UK PubMed Central (United Kingdom)

Quantal analysis of synaptic transmission is an important tool for understanding the mechanisms of synaptic plasticity and synaptic regulation. Although several custom-made and commercial algorithms have been created for the analysis of spontaneous synaptic activity, software for the analysis of action potential evoked release remains very limited. The present paper describes a user-friendly software package QUANTAN which has been created to analyze electrical recordings of postsynaptic responses. The program package is written using Borland C++ under Windows platform. QUANTAN employs and compares several algorithms to extract the average quantal content of synaptic responses, including direct quantal counts, the analysis of synaptic amplitudes, and the analysis of integrated current traces. The integration of several methods in one user-friendly program package makes quantal analysis of action potential evoked release more reliable and accurate. To evaluate the variability in quantal content, QUANTAN performs deconvolution of the distributions of amplitudes or areas of synaptic responses employing a ridge regression method. Other capabilities of QUANTAN include the analysis of the time-course and stationarity of quantal release. In summary, QUANTAN uses digital records of synaptic responses as an input and computes the distribution of quantal content and synaptic parameters. QUANTAN is freely available to other scholars over the internet.

Bykhovskaia M

2008-03-01

100

Making quantal analysis more convenient, fast, and accurate: user-friendly software QUANTAN.  

Science.gov (United States)

Quantal analysis of synaptic transmission is an important tool for understanding the mechanisms of synaptic plasticity and synaptic regulation. Although several custom-made and commercial algorithms have been created for the analysis of spontaneous synaptic activity, software for the analysis of action potential evoked release remains very limited. The present paper describes a user-friendly software package QUANTAN which has been created to analyze electrical recordings of postsynaptic responses. The program package is written using Borland C++ under Windows platform. QUANTAN employs and compares several algorithms to extract the average quantal content of synaptic responses, including direct quantal counts, the analysis of synaptic amplitudes, and the analysis of integrated current traces. The integration of several methods in one user-friendly program package makes quantal analysis of action potential evoked release more reliable and accurate. To evaluate the variability in quantal content, QUANTAN performs deconvolution of the distributions of amplitudes or areas of synaptic responses employing a ridge regression method. Other capabilities of QUANTAN include the analysis of the time-course and stationarity of quantal release. In summary, QUANTAN uses digital records of synaptic responses as an input and computes the distribution of quantal content and synaptic parameters. QUANTAN is freely available to other scholars over the internet. PMID:18045692

Bykhovskaia, Maria

2007-10-23

 
 
 
 
101

Comparative Analysis of Virtual Education Applications  

Directory of Open Access Journals (Sweden)

Full Text Available The research was conducted in order to make comparative analysis of virtual education applications. The research is conducted in survey model. The study group consists of total 300 institutes providing virtual education in the fall, spring and summer semesters of 2004; 246 in USA, 10 in Australia, 3 in South Africa, 10 in India, 21 in UK, 6 in Japan, 4 in Turkey. The information has been collected by online questionnaire sent to the target mass by e-mail. The questionnaire has been developed in two information categories as personal information and institutes and their virtual education applications. The English web design of the online questionnaire and the database has been prepared by Microsoft ASP codes which is the script language of Microsoft Front Page editor and has been tested on personal web site. The questionnaire has been pre applied in institutions providing virtual education in Australia. The English text of the questionnaire and web site design have been sent to educational technology and virtual education specialists in the countries of the study group. With the feedback received, the spelling mistakes have been corrected and concept and language validity have been completed. The application of the questionnaire has taken 40 weeks during March-November 2004. Only 135 institutes have replied. Two of the questionnaires have been discharged because they included mistaken coding, names of the institutions and countries. Valid 133 questionnaires cover approximately 44% of the study group. Questionnaires saved in the online database have been transferred to Microsoft Excel and then to SPSS by external database connection. In regards of the research objectives, the data collected has been analyzed on computer and by using SPSS statistics package program. In data analysis frequency (f), percentage (%) and arithmetic mean () have been used. In comparisons of country, institute, year, and other variables, che-square test, independent t-Test and one way variance analysis (F Test) have been used. Kruskal-Wallis H test and Mann-Whitney U test have been used. Although virtual education applications differentiate in choices and applications in different countries, education levels and types, after completion of the data analysis it is seen that study group consists of people whom are graduate and undergraduate level, personal users having education expectations, between the ages of 18-45 and working full time. They mostly offer programs providing undergraduate and graduate education in social sciences, giving accredited document, certificate and title. It is seen that most of the instructors have taken a planned education and they are mostly working as full time instructors and they are taking technical support. Financial resources are obtained from fees taken from students and the resources are mostly used for personnel costs. In applications central administration and organization take place and it is seen that they interfere with universities, for physical facilities they use information process centers and virtual classrooms, and for infrastructure and support services they use information process services. It is seen that while in the teaching process they use both synchronous and asynchronous presentation technologies; in order to support course content they use e-mail, web, cd, and course book technologies to provide basic learning environment function; they prefer different environments to cover face to face education needs; they take self learning and collaboration as basis and they take projects and term paper evaluations serious; they mostly prefer multiple choice tests and they usually make virtual courses exams through the internet. Regarding the characteristics of their institutions’ applications, the study group have agreed on mostly to connection and being dependent on connection opportunities. A significant difference between their institutions’ characteristics and the model for developing computer labs, when they had started to provide virtual lessons and presentation technologi

Mehmet KURT

2006-01-01

102

Earth Science Enterprise Solutions Network User Needs Analysis  

Science.gov (United States)

The University of Mississippi and Mississippi State University are partnering with National Aeronautics and Space Administration (NASA) to develop a Research Projects Knowledge Base (RPKB) and a Partner Network Knowledge Base (PNKB) that will allow the user community to more easily locate the results of NASA funded research and be able to contact potential partners for future research. The RPKB and PNKB will also help NASA and the user community generate new topics for research projects that benefit society. The assessment of the needs of the user community for the RPKB and the PNKB was conducted through a combination of phone interviews with representatives of the user community, evaluations of existing data and tools currently employed by scientists, collaborations between NASA and the MRC, and the results of a November, 2006 workshop. This information was combined with an email survey, resulting in a report that describes how the users of the RPKB and the PNKB want to access the information in the knowledge bases, input new information into the RPKB and PNKB, and generate reports and diagrams, such as formulation reports. The compilation of the user's needs presented here is being used to design access and input tools for the user community. When fully developed the RPKB and the PNKB will use the NASA enterprise architecture modeling and viewing capability to provide NASA and the user community a more efficient way to identify potential research projects and partners.

Mita, D.; Easson, G.; Anderson, D. J.

2006-12-01

103

Analysis of Users Web Browsing Behavior Using Markov chain Model  

Directory of Open Access Journals (Sweden)

Full Text Available In present days of growing information technology, many browsers available for surfing and web mining. A user has option to use any of them at a time to mine out the desired website. Every browser has pre-defined level of popularity and reputation in the market. This paper considers the setup of only two browsers in a computer system and a user prefers to any one, if fails, switches to the other one .The behavior of user is modeled through Markov chain procedure and transition probabilities are calculated. The quitting to browsing is treated as a parameter of variation over the popularity. Graphical study is performed to explain the inter relationship between user behavior parameters and browser market popularity parameters. If rate of a company is lowest in terms of browser failure and lowest in terms of quitting probability then company enjoys better popularity and larger user proportion

Diwakar Shukla; Rahul Singhai

2011-01-01

104

Mobile Phone Usage for M-Learning: Comparing Heavy and Light Mobile Phone Users  

Science.gov (United States)

|Purpose: Mobile technologies offer the opportunity to embed learning in a natural environment. The objective of the study is to examine how the usage of mobile phones for m-learning differs between heavy and light mobile phone users. Heavy mobile phone users are hypothesized to have access to/subscribe to one type of mobile content than light…

Suki, Norbayah Mohd; Suki, Norazah Mohd

2007-01-01

105

A generic analysis code of dynamic compartment model for evaluation of doses in terrestrial biosphere. GACOM user`s manual  

Energy Technology Data Exchange (ETDEWEB)

A computer code GACOM (Generic Analysis code for dynamic COmpartment Model) has been developed to evaluate the behavior of radionuclides in terrestrial biosphere and the subsequent individual doses. In this code, the simultaneous ordinary differential equations are solved by using the sixth-step fifth-order Runge-Kutta method called Fehlberg formula. This principal characteristics of this code are shown as follows; (1) user definition of such as a number of compartments and transfer pathways of nuclides makes it possible to apply this code to various subjects of analysis, (2) various kinds of equations for evaluating doses in terrestrial biosphere are available for making input data of this code, (3) the units of time and nuclides can be defined flexibly, (4) probabilistic analysis by using the Monte-Carlo simulation is possible. This report describes the structure and user information for execution of GACOM code. (author)

Takahashi, Tomoyuki [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

1998-02-01

106

Model for Analysis of Energy Demand (MAED-2). User's manual  

International Nuclear Information System (INIS)

The IAEA has been supporting its Member States in the area of energy planning for sustainable development. Development and dissemination of appropriate methodologies and their computer codes are important parts of this support. This manual has been produced to facilitate the use of the MAED model: Model for Analysis of Energy Demand. The methodology of the MAED model was originally developed by. B. Chateau and B. Lapillonne of the Institute Economique et Juridique de l'Energie (IEJE) of the University of Grenoble, France, and was presented as the MEDEE model. Since then the MEDEE model has been developed and adopted to be appropriate for modelling of various energy demand system. The IAEA adopted MEDEE-2 model and incorporated important modifications to make it more suitable for application in the developing countries, and it was named as the MAED model. The first version of the MAED model was designed for the DOS based system, which was later on converted for the Windows system. This manual presents the latest version of the MAED model. The most prominent feature of this version is its flexibility for representing structure of energy consumption. The model now allows country-specific representations of energy consumption patterns using the MAED methodology. The user can now disaggregate energy consumption according to the needs and/or data availability in her/his country. As such, MAED has now become a powerful tool for modelling widely diverse energy consumption patterns. This manual presents the model in details and provides guidelines for its application

2007-01-01

107

Model for Analysis of Energy Demand (MAED-2). User's manual  

International Nuclear Information System (INIS)

The IAEA has been supporting its Member States in the area of energy planning for sustainable development. Development and dissemination of appropriate methodologies and their computer codes are important parts of this support. This manual has been produced to facilitate the use of the MAED model: Model for Analysis of Energy Demand. The methodology of the MAED model was originally developed by. B. Chateau and B. Lapillonne of the Institute Economique et Juridique de l'Energie (IEJE) of the University of Grenoble, France, and was presented as the MEDEE model. Since then the MEDEE model has been developed and adopted to be appropriate for modelling of various energy demand system. The IAEA adopted MEDEE-2 model and incorporated important modifications to make it more suitable for application in the developing countries, and it was named as the MAED model. The first version of the MAED model was designed for the DOS based system, which was later on converted for the Windows system. This manual presents the latest version of the MAED model. The most prominent feature of this version is its flexibility for representing structure of energy consumption. The model now allows country-specific representations of energy consumption patterns using the MAED methodology. The user can now disaggregate energy consumption according to the needs and/or data availability in her/his country. As such, MAED has now become a powerful tool for modelling widely diverse energy consumption patterns. This manual presents the model in details and provides guidelines for its application

2006-01-01

108

Analysis of Mobile Users’ Perception towards SMS Voting  

Directory of Open Access Journals (Sweden)

Full Text Available Voting through Short Message Service (SMS) technology is fast and reliable as the mobile technology in Malaysia is quite advanced. Most of the SMS voting mechanism is easily understood by the public. There is no need to explain the voting process in detail as almost 80% of the mobile users know how to use the SMS service. SMS voting is just another way of sending a vote to the recipient by using short code instead of using a normal mobile number. SMS voting provides a useful, secure and reliable process as mobile users are informed of the charges incurred and receive a return SMS to acknowledge that their SMS vote has been received. The objective of this study is to study the characteristics of SMS voting adopters in terms of demographic factors as well as to explore the mobile users’ perception towards SMS voting. A survey using questionnaires was conducted to gain information and opinions from a convenience sample of 300 Malaysian mobile users regarding their perceptions on using SMS to vote. The findings revealed that approximately two-thirds of the Malay respondents use SMS voting, most mobile users in the sample are single and female, and that mobile users like to send their votes using SMS. There is a significant difference between the usage of SMS voting among female respondents. Of the respondents 80 per cent perceive that the ease of use factor has greatly influenced mobile users in using SMS for voting purposes.

NG KAI SIN; Ainin Sulaiman; Ali Hussein Saleh Zolait

2008-01-01

109

Elevated impulsivity and impaired decision-making in abstinent Ecstasy (MDMA) users compared to polydrug and drug-naive controls.  

UK PubMed Central (United Kingdom)

Ecstasy (MDMA; 3,4-methylenedioxymethamphetamine) has a well-recognized neurotoxic effect on central serotonergic (5-HT) systems in animals, and there is some evidence of persistent serotonergic dysregulation in human ecstasy users. Serotonin is believed to mediate impulsive behavior and effective decision-making. Thus, the aim of the present study was to investigate impulsive behavior and decision-making in abstinent regular ecstasy users. Three groups were compared: 'ecstasy users' (recreational ecstasy users who reported modest use of illicit drugs other than cannabis), 'polydrug controls' (ecstasy naïve illicit drug users), and 'drug-naïve controls'. All participants completed personal details and general drug history questionnaires, the National Adult Reading Test, Matching Familiar Figures Test (MFF20), a risky decision-making task (RDMT), and the Card Arranging Reward Responsivity Objective Test (CARROT). The groups did not differ on the CARROT measure of responsiveness to financial incentive; however, the ecstasy group displayed significantly elevated MFF20 impulsivity, and showed reduced discrimination between magnitudes of prospective gains and losses when making risky decisions, compared to the 'polydrug' and 'drug-naïve' control groups. These findings may reflect a vulnerability of 5-HT systems in the orbital prefrontal cortex and interconnected corticolimbic circuitry to the cumulative neurotoxic effects of ecstasy and have clinical significance for regular ecstasy users. The combination of elevated impulsivity and impaired use of reinforcement cues in uncertain decision-making may comprise risk factors for continued drug abuse and everyday functioning.

Morgan MJ; Impallomeni LC; Pirona A; Rogers RD

2006-07-01

110

Comparative analysis of peat gasification reactor configuration  

Energy Technology Data Exchange (ETDEWEB)

A comparative analysis of two generic (fluidized and entrained beds) and two specific (PEATGAS and the Rockwell International) hydrogasifiers involved data-base assessment, regression analysis, a chemical-engineering evaluation of down- and upstream equipment needs, and computer simulation. The study concluded that the PEATGAS reactor is closer to commercialization than the Rockwell.

1981-07-01

111

Comparative analysis of methods of hardness assessment  

Directory of Open Access Journals (Sweden)

Full Text Available Purpose: The aim of this paper is to show how it could utilize the statistical methods for the process management.Design/methodology/approach: The research methodology bases on a theoretical analysis and empirical researches. A practical solution is presented to compare measurements methods of hardness and to estimate capability indices of measurement system.Findings: Measurement system analysis (MSA), particularly theory of statistical tests brings correct results for the analysed case.Research limitations/implications: Comparative analysis of measurement methods – interlaboratory studies, delivery control etc. is necessary in the interpretation of results.Practical implications: Described methodology and results can be employed in the industrial practice.Originality/value: The complete statistical comparative analysis of methods of hardness measurement with the help of a stationary and mobile hardness tester.

A. Czarski

2009-01-01

112

Users, User-Friendliness and Projected Uses of Isichazamazwi SesiNdebele: An Analysis  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract: This article discusses the first-ever monolingual general Ndebele dictionary, Isichazamazwi SesiNdebele (henceforth the ISN) within the context of the history of lexicography and the compilation of dic-tionaries in Ndebele. It further assesses the scope of the dictionary with regard to its structure. It also dis-cusses decisions taken by the editors during the writing of the ISN in an attempt to compile a user-friendly dictionary primarily aimed at secondary schools and the general Ndebele population. The assumptions of the editors, coming from a non-existing lexicographic tradition, were mainly based on their experiences and intuitions as Ndebele mother-tongue speakers, educators and language practitioners. The article also ac-counts for four major uses of the dictionary.

Langa Khumalo

2011-01-01

113

Analysis of diversified concept of users on the energy service  

Energy Technology Data Exchange (ETDEWEB)

On the basis of rapid environmental change in the electrical business, fine and delicate service on the user's side is desired to be adopted as well as the conventional abundunt, cheap, and stable power supply. By conducting a questionaire survey during 1986-1987 throughout the country, features of the concept and needs of the users concerning the energy service were clarified. The results of survey were as follows: (1) Determining factor for the image of energy is such benefit factors as comfort and cleanliness as such cost factors as economy and energy-saving. (2) Diversified life styles of the users were extracted to find concepts and needs of the respective life style. (3) Middle-aged housewives especially regard electicity as a costly energy than other energies although it is comfortable and clean. (7 figs, 3 tabs, 4 refs)

Ono, Kenji; Morikiyo, Takashi

1987-09-10

114

Transportation Routing Analysis Geographic Information System (TRAGIS) User's Manual  

Energy Technology Data Exchange (ETDEWEB)

The Transportation Routing Analysis Geographic Information System (TRAGIS) model is used to calculate highway, rail, or waterway routes within the United States. TRAGIS is a client-server application with the user interface and map data files residing on the user's personal computer and the routing engine and network data files on a network server. The user's manual provides documentation on installation and the use of the many features of the model.

Johnson, PE

2003-09-18

115

Comparing intervention strategies among rural, low SES, young adult tobacco users.  

UK PubMed Central (United Kingdom)

OBJECTIVE: To evaluate 3-month tobacco quit rates of young adult tobacco users randomized to 2 intervention conditions. METHODS: Overall 192 non-treatment-seeking 18-to-24-year-old tobacco users received educational information and advice to quit smoking. Participants were then block randomized to 2 brief intervention conditions: (1) a telephone quitline (TQ) N = 90; or (2) a brief direct treatment intervention (BDTI) N = 102. RESULTS: A 90-day follow-up evaluation found that 19.6% of BDTI and 10.2% of TQ participants reported 30-day point prevalence tobacco quit rates (chi-square = 2.37, P = .09). CONCLUSIONS: BDTI can help non-treatment-seeking, low SES, young adult tobacco users quit smoking.

Zanis DA; Hollm RE; Derr D; Ibrahim JK; Collins BN; Coviello D; Melochick JR

2011-03-01

116

User`s guide for the frequency domain algorithms in the LIFE2 fatigue analysis code  

Energy Technology Data Exchange (ETDEWEB)

The LIFE2 computer code is a fatigue/fracture analysis code that is specialized to the analysis of wind turbine components. The numerical formulation of the code uses a series of cycle count matrices to describe the cyclic stress states imposed upon the turbine. However, many structural analysis techniques yield frequency-domain stress spectra and a large body of experimental loads (stress) data is reported in the frequency domain. To permit the analysis of this class of data, a Fourier analysis is used to transform a frequency-domain spectrum to an equivalent time series suitable for rainflow counting by other modules in the code. This paper describes the algorithms incorporated into the code and their numerical implementation. Example problems are used to illustrate typical inputs and outputs.

Sutherland, H.J. [Sandia National Labs., Albuquerque, NM (United States); Linker, R.L. [New Mexico Engineering Research Inst., Albuquerque, NM (United States)

1993-10-01

117

Comparative Analysis on Constitutional Supervision Modes  

Directory of Open Access Journals (Sweden)

Full Text Available Constitution is the fundamental law of a nation and also the general regulations on administering state affairs and ensuring national security. This is why constitutional supervision is so important for a country. However, there are still many problems existing under the supervision mechanism regarding to its operability, materiality, and rationality. This paper tries to give proper suggestions on perfecting Chinese constitutional supervision through comparative analysis and other countries’ advanced experiences.Key words: Constitutional supervision modes; Comparative study

Wenjing WANG; Xiaorui WANG

2012-01-01

118

Modelling User-Costs in Life Cycle Cost-Benefit (LCCB) analysis  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The importance of including user's costs in Life-Cycle Cost-Benefit analysis of structures is discussed in this paper. This is especially for bridges of great importance. Repair or/and failure of a bridge will usually result in user costs greater than the repair or replacement costs of the bridge. F...

Thoft-Christensen, Palle

119

Comparing injunctive marijuana use norms of salient reference groups among college student marijuana users and nonusers.  

UK PubMed Central (United Kingdom)

Marijuana is the most commonly used illicit drug among college students and has the potential for various negative outcomes. Perceptions of what constitutes typical approval/acceptability of a reference group (i.e. injunctive social norms) have been shown to have strong utility as predictors of health-risk behaviors in the college context, yet this construct remains significantly understudied for marijuana use despite its potential for use in social norms-based interventions. The current research evaluated individuals' marijuana approval level and their perceptions of others' marijuana approval level (i.e. injunctive norms) for various reference groups (typical student on campus, one's close friends, and one's parents) as a function of individual user status (abstainers, experimenters, occasional users, and regular users). A diverse sample of 3553 college students from two universities completed an online survey. Among all user status groups, individual approval yielded mean scores paralleling that of perceived close friends' approval and all groups were relatively uniform in their perception of typical students' approval. Higher levels of marijuana use tended to produce higher endorsements of individual approval, perceived close friends' approval, and perceived parental approval. Among occasional and regular users, there were no differences between one's own approval level for use and the perceptions of close friends' approval, nor did they think the typical student was more approving than themselves. Abstainers and experimenters, however, perceived typical students and close friends to have more permissive attitudes than themselves. Implications and future directions for research regarding the role of injunctive marijuana use norms in the development of social norms intervention are discussed.

LaBrie JW; Hummer JF; Lac A

2011-07-01

120

Cytomorphometric analysis of the buccal mucosa of tobacco users.  

Directory of Open Access Journals (Sweden)

Full Text Available OBJECTIVE: This study has been carried out to assess the effect of tobacco smoking and of betel quid chewing with tobacco on buccal mucosa by cytomorphometry, in a south Indian population. STUDY DESIGN: Cellular diameter (CD) and nuclear diameter (ND) of exfoliated buccal squames obtained from clinically normal appearing buccal mucosa of tobacco smokers, betel quid with tobacco chewers, and those with a combined habit, stained by the Papanicolaou method, were measured. Non-users served as negative controls and oral squamous cell carcinomas in tobacco users served as positive controls. One way ANOVA test of the values obtained followed by multiple range comparison with Tukey-HSD procedure (at p=0.05) was carried out. RESULTS: A statistically significant reduction in CD and increase in ND in smokers and those with a combined habit were observed. CONCLUSION: The use of tobacco in the form of smoking influences the cytomorphology of buccal mucosa.

Einstein T; Sivapathasundharam B

2005-01-01

 
 
 
 
121

Diagnosing MOV problems using comparative trace analysis  

International Nuclear Information System (INIS)

The paper presents the concept of comparative trace analysis and shows it to be very effective in diagnosing motor operated valve (MOV) problems. Comparative trace analysis is simply the process of interpreting simultaneously gathered traces, each presenting a different perspective on the same series of events. The opening and closing of a motor operated valve is such a series of events. The simultaneous traces are obtained using Liberty Technologies' Valve Operation Test and Evaluation System (VOTES)reg-sign. The traces include stem thrust, motor current, motor power factor, motor power, switch actuations, vibration in three different frequency bands, spring pack displacement, and spring pack force. Spare and auxiliary channels enable additional key parameters to be measured, such as differential pressure and stem displacement. Though not specifically illustrated in this paper, the VOTES system also provides for FFT analysis on all traces except switches.

1992-01-01

122

Users' manual for fault tree analysis code: CUT-TD  

International Nuclear Information System (INIS)

The CUT-TD code has been developed to find minimal cut sets for a given fault tree and to calculate the occurrence probability of its top event. This code uses an improved top-down algorithm which can enhance the efficiency in deriving minimal cut sets. The features in processing techniques incorporated into CUT-TD are as follows: (1) Consecutive OR gates or consecutive AND gates can be coalesced into a single gate. As a result, this processing directly produces cut sets for the redefined single gate with each gate not being developed. (2) The independent subtrees are automatically identified and their respective cut sets are separately found to enhance the efficiency in processing. (3) The minimal cut sets can be obtained for the top event of a fault tree by combining their respective minimal cut sets for several gates of the fault tree. (4) The user can reduce the computing time for finding minimal cut sets and control the size and significance of cut sets by inputting a minimum probability cut off and/or a maximum order cut off. (5) The user can select events that need not to be further developed in the process of obtaining minimal cut sets. This option can reduce the number of minimal cut sets, save the computing time and assists the user in reviewing the result. (6) Computing time is monitored by the CUT-TD code so that it can prevent the running job from abnormally ending due to excessive CPU time and produce an intermediate result. The CUT-TD code has the ability to restart the calculation with use of the intermediate result. This report provides a users' manual for the CUT-TD code. (author).

1992-01-01

123

Analysis and Improvement of a User Authentication Improved Protocol  

Directory of Open Access Journals (Sweden)

Full Text Available Remote user authentication always adopts the method of password to login the server within insecure network environments. Recently, Peyravin and Jeffries proposed a practical authentication scheme based on one-way collision-resistant hash functions. However, Shim and Munilla independently showed that the scheme is vulnerable to off-line guessing attacks. In order to remove the weakness, Hölbl, Welzer and Brumenn presented an improved secure password-based protocols for remote user authentication, password change and session key establishment.  Unfortunately, the remedies of their improved scheme cannot work. The improved scheme still suffers from the off-line attacks. And the password change protocol is insecure against Denial-of-Service attack. A proposed scheme is presented which overcomes these weaknesses. Detailed cryanalysis show that the proposed password-based protocols for remote user authentication, password change and session key establishment are immune against man-in-the-middle attacks, replay attacks, password guessing attacks, outsider attacks, denial-of-Service attacks and impersonation attacks.

Zuowen Tan

2010-01-01

124

Psychosocial characteristics of benzodiazepine addicts compared to not addicted benzodiazepine users.  

UK PubMed Central (United Kingdom)

OBJECTIVE: Although the addictive potential of benzodiazepine drugs has been known for a long time, new cases of benzodiazepine addictions keep emerging in clinical practice. The etiology of benzodiazepine addiction seems to be multifactorial. The objective of this study was to investigate and measure psychological and situational factors differentiating benzodiazepine addicts from not addicted users. METHODS: A psychological profile and situational factors of patients with the diagnosis of benzodiazepine addiction and a carefully matched control group of not addicted former benzodiazepine users were defined and investigated. RESULTS: The investigated benzodiazepine addicts differed significantly from the control group in particular psychological dimensions, such as higher neuroticism and introversion, prevalence of emotional rather than task based coping mechanisms. There were also significant correlations between the addiction and situational factors such as BZD - treatment circumstances and adverse life events previous to the treatment. CONCLUSIONS: The results show psychological and situational factors which differentiate benzodiazepine addicts from not addicted benzodiazepine users. This data suggest that benzodiazepine addiction might be associated with higher neuroticism, introversion and less effective coping mechanisms as well as with previous accumulation of adverse life events and/or inadequate BZD treatment. The psychological and situational factors mentioned above might be considered as potential risk factors for benzodiazepine addiction.

Konopka A; Pe?ka-Wysiecka J; Grzywacz A; Samochowiec J

2013-01-01

125

Detailed description and user`s manual of high burnup fuel analysis code EXBURN-I  

Energy Technology Data Exchange (ETDEWEB)

EXBURN-I has been developed for the analysis of LWR high burnup fuel behavior in normal operation and power transient conditions. In the high burnup region, phenomena occur which are different in quality from those expected for the extension of behaviors in the mid-burnup region. To analyze these phenomena, EXBURN-I has been formed by the incorporation of such new models as pellet thermal conductivity change, burnup-dependent FP gas release rate, and cladding oxide layer growth to the basic structure of low- and mid-burnup fuel analysis code FEMAXI-IV. The present report describes in detail the whole structure of the code, models, and materials properties. Also, it includes a detailed input manual and sample output, etc. (author). 55 refs.

Suzuki, Motoe [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment; Saitou, Hiroaki

1997-11-01

126

Comparative promoter region analysis powered by CORG  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Promoters are key players in gene regulation. They receive signals from various sources (e.g. cell surface receptors) and control the level of transcription initiation, which largely determines gene expression. In vertebrates, transcription start sites and surrounding regulatory elements are often poorly defined. To support promoter analysis, we present CORG http://corg.molgen.mpg.de, a framework for studying upstream regions including untranslated exons (5' UTR). Description The automated annotation of promoter regions integrates information of two kinds. First, statistically significant cross-species conservation within upstream regions of orthologous genes is detected. Pairwise as well as multiple sequence comparisons are computed. Second, binding site descriptions (position-weight matrices) are employed to predict conserved regulatory elements with a novel approach. Assembled EST sequences and verified transcription start sites are incorporated to distinguish exonic from other sequences. As of now, we have included 5 species in our analysis pipeline (man, mouse, rat, fugu and zebrafish). We characterized promoter regions of 16,127 groups of orthologous genes. All data are presented in an intuitive way via our web site. Users are free to export data for single genes or access larger data sets via our DAS server http://tomcat.molgen.mpg.de:8080/das. The benefits of our framework are exemplarily shown in the context of phylogenetic profiling of transcription factor binding sites and detection of microRNAs close to transcription start sites of our gene set. Conclusion The CORG platform is a versatile tool to support analyses of gene regulation in vertebrate promoter regions. Applications for CORG cover a broad range from studying evolution of DNA binding sites and promoter constitution to the discovery of new regulatory sequence elements (e.g. microRNAs and binding sites).

Dieterich Christoph; Grossmann Steffen; Tanzer Andrea; Röpcke Stefan; Arndt Peter F; Stadler Peter F; Vingron Martin

2005-01-01

127

SYNCH: A program for design and analysis of synchrotrons and beamlines -- user`s guide  

Energy Technology Data Exchange (ETDEWEB)

SYNCH is a computer program for use in the design and analysis of synchrotrons, storage rings, and beamlines. It has a large repertoire of commands that can be accessed in a flexible way. The input statements and the results of the calculations they invoke are saved in an internal database so that this information may be shared by other statements. SYNCH is the first accelerator program to organize its input in the form of a language. The statements, which resemble sentences, provide a natural way of describing lattices and invoking relevant calculations. The organization of the program is modular, so that it has been possible to expand its capabilities progressively.

Garren, A.A.; Kenney, A.S.; Courant, E.D.; Russell, A.D.; Syphers, M.J.

1993-12-31

128

Image analysis in comparative genomic hybridization  

Energy Technology Data Exchange (ETDEWEB)

Comparative genomic hybridization (CGH) is a new technique by which genomic imbalances can be detected by combining in situ suppression hybridization of whole genomic DNA and image analysis. We have developed software for rapid, quantitative CGH image analysis by a modification and extension of the standard software used for routine karyotyping of G-banded metaphase spreads in the Magiscan chromosome analysis system. The DAPI-counterstained metaphase spread is karyotyped interactively. Corrections for image shifts between the DAPI, FITC, and TRITC images are done manually by moving the three images relative to each other. The fluorescence background is subtracted. A mean filter is applied to smooth the FITC and TRITC images before the fluorescence ratio between the individual FITC and TRITC-stained chromosomes is computed pixel by pixel inside the area of the chromosomes determined by the DAPI boundaries. Fluorescence intensity ratio profiles are generated, and peaks and valleys indicating possible gains and losses of test DNA are marked if they exceed ratios below 0.75 and above 1.25. By combining the analysis of several metaphase spreads, consistent findings of gains and losses in all or almost all spreads indicate chromosomal imbalance. Chromosomal imbalances are detected either by visual inspection of fluorescence ratio (FR) profiles or by a statistical approach that compares FR measurements of the individual case with measurements of normal chromosomes. The complete analysis of one metaphase can be carried out in approximately 10 minutes. 8 refs., 7 figs., 1 tab.

Lundsteen, C.; Maahr, J.; Christensen, B. [and others

1995-01-01

129

Dashboard Task Monitor for managing ATLAS user analysis on the Grid  

CERN Multimedia

The organization of the distributed user analysis on the Worldwide LHC Computing Grid (WLCG) infrastructure is one of the most challenging tasks among the computing activities at the Large Hadron Collider. The Experiment Dashboard offers a solution that not only monitors but also manages (kill, resubmit) user tasks and jobs via a web interface. The ATLAS Dashboard Task Monitor provides analysis users with a tool that is operating system and GRID environment independent. This contribution describes the functionality of the application and its implementation details, in particular authentication, authorization and audit of the management operations.

Sargsyan, L; The ATLAS collaboration; Jha, M; Karavakis, E; Kokoszkiewicz, L; Saiz, P; Schovancova, J; Tuckett, D

2013-01-01

130

Dashboard Task Monitor for managing ATLAS user analysis on the Grid  

CERN Multimedia

The organization of the distributed user analysis on the Worldwide LHC Computing Grid (WLCG) infrastructure is one of the most challenging tasks among the computing activities at the Large Hadron Collider. The Experiment Dashboard offers a solution that not only monitors but also manages (kill, resubmit) user tasks and jobs via a web interface. The ATLAS Dashboard Task Monitor provides analysis users with a tool that is independent of the operating system and GRID environment . This contribution describes the functionality of the application and its implementation details, in particular authentication, authorization and audit of the management operations.

Sargsyan, L; The ATLAS collaboration; Jha, M; Karavakis, E; Kokoszkiewicz, L; Saiz, P; Schovancova, J; Tuckett, D

2013-01-01

131

TMVA - Toolkit for Multivariate Data Analysis with ROOT Users guide  

CERN Document Server

Multivariate machine learning techniques for the classification of data from high-energy physics experiments have become a fundamental ingredient to most analyses. The multivariate classifiers themselves have significantly evolved in recent years, also driven by developments in other areas inside and outside science. TMVA is a ROOT-integrated toolkit, which hosts a large variety of multivariate classification algorithms ranging from rectangular cut optimisation (using a genetic algorithm) and likelihood estimators, over linear and non-linear discriminants (neural networks), to sophisticated recent developments like boosted decision trees and rule ensemble fitting. TMVA allows the simultaneous training, testing and performance evaluation of all these classifiers with user-friendly interfaces.

Höcker, A; Tegenfeldt, F; Voss, H; Voss, K; Christov, A; Henrot-Versillé, S; Jachowski, M; Krasznahorkay, A; Mahalalel, Y; Prudent, X; Speckmayer, P

2007-01-01

132

Synfuel program analysis. Volume II. VENVAL users manual  

Energy Technology Data Exchange (ETDEWEB)

This volume is intended for program analysts and is a users manual for the VENVAL model. It contains specific explanations as to input data requirements and programming procedures for the use of this model in handling various cases. VENVAL is a generalized computer program to aid in evaluation of prospective private-sector production ventures. The program can project interrelated values of installed capacity, production, sales revenue, operating costs, depreciation, investment, debt, earnings, taxes, return on investment, depletion, and cash flow measures. It can also compute related public sector and other external costs and revenues if unit costs are furnished. (DMC)

Muddiman, J.B.; Whelan, J.W.

1980-07-01

133

Comparative analysis of twelve Dothideomycete plant pathogens  

Energy Technology Data Exchange (ETDEWEB)

The Dothideomycetes are one of the largest and most diverse groups of fungi. Many are plant pathogens and pose a serious threat to agricultural crops grown for biofuel, food or feed. Most Dothideomycetes have only a single host and related Dothideomycete species can have very diverse host plants. Twelve Dothideomycete genomes have currently been sequenced by the Joint Genome Institute and other sequencing centers. They can be accessed via Mycocosm which has tools for comparative analysis

Ohm, Robin; Aerts, Andrea; Salamov, Asaf; Goodwin, Stephen B.; Grigoriev, Igor

2011-03-11

134

Reporting the Findings of Updated Systematic Reviews of Comparative Effectiveness: How Do Users Want To View New Information?  

UK PubMed Central (United Kingdom)

BACKGROUND: To remain useful, comparative effectiveness reviews (CERs) and other systematic reviews require periodic updating. Although several studies have been conducted assessing when and how to update, no research has been conducted on optimal formats for presenting the results to users. The aim of the present study was to gather the input of various users of CERS regarding the usability of a range of formatting methods for showing the changes from the original to the update report. METHODS: Using the executive summaries of a comparative effectiveness review our Evidence-based Practice Center conducted in 2001 and the update review we conducted in 2008, we initially created five different versions of the update summary. Each succeeding version used a different format to show changes from the original to the update report (e.g., new and retired Key Questions, changes in search strategies and inclusion/exclusion criteria) and changes in the findings. To test the five differently formatted summaries, we identified several categories of users of CERs, convened an informal virtual focus group comprising various users, and asked them to evaluate the summaries on several dimensions, first via an email questionnaire and then in a group conference call where we presented the results of the questionnaire. Based on group feedback, we created two additional versions and tested them in a second focus group and among a third small group. The rationales for the selection of formats were two-fold: to imitate, and thus evaluate, the formats used by several organizations whose role is to conduct systematic reviews and updates and to create and test novel formats in response to users' suggestions. RESULTS: Policymakers who rely on CERs and other systematic reviews as the basis for policy (including health insurance companies, health care organizations, research funders, and guideline makers) expressed the need to see changes in review process as well as outcomes clearly marked, (with changes in outcomes and conclusions preferably shown in graphic form), while at the same time having access to the entire set of data and the analyses on which the conclusions were based. The small group of clinicians preferred to see the skeleton of the report (Key Questions, conceptual framework, inclusion/exclusion criteria) as well as the outcomes and conclusions presented entirely in graphic form for ease of reading. CONCLUSIONS: Different users of CERs clearly have different information needs. Yet whereas policymakers need access to the entire data set and analyses that comprise a systematic review (the original and the update), all users benefit from summaries that clearly show what changed in as succinct a format as possible, preferable in graphic form.

Newberry SJ; Shekelle PG; Vaiana M; Motala A

135

Embedded Hyperchaotic Generators: A Comparative Analysis  

Science.gov (United States)

In this paper, we present a comparative analysis of FPGA implementation performances, in terms of throughput and resources cost, of five well known autonomous continuous hyperchaotic systems. The goal of this analysis is to identify the embedded hyperchaotic generator which leads to designs with small logic area cost, satisfactory throughput rates, low power consumption and low latency required for embedded applications such as secure digital communications between embedded systems. To implement the four-dimensional (4D) chaotic systems, we use a new structural hardware architecture based on direct VHDL description of the forth order Runge-Kutta method (RK-4). The comparative analysis shows that the hyperchaotic Lorenz generator provides attractive performances compared to that of others. In fact, its hardware implementation requires only 2067 CLB-slices, 36 multipliers and no block RAMs, and achieves a throughput rate of 101.6 Mbps, at the output of the FPGA circuit, at a clock frequency of 25.315 MHz with a low latency time of 316 ns. Consequently, these good implementation performances offer to the embedded hyperchaotic Lorenz generator the advantage of being the best candidate for embedded communications applications.

Sadoudi, Said; Tanougast, Camel; Azzaz, Mohamad Salah; Dandache, Abbas

136

Validating Utility of TEIM: A Comparative Analysis  

Directory of Open Access Journals (Sweden)

Full Text Available Concrete efforts to integrate Software Engineering and Human Computer Interaction exist in the form of models by many researchers. An unconventional model called TEIM (The Evolved Integrated Model) of Software Engineering and Human Computer Interaction was proposed by us. There is a need to establish correlation with prior models as well validate utility of TEIM. In this paper product PS designed using SE-HCI integration model TEIM is evaluated by making a comparative analysis. For evaluation UGAM and IOI tools designed by DR.Anirudha Joshi are used. Our analysis showed that correlation of TEIM exists with prior models. Regression analysis showed that high correlation exists between TEIM and prior model.

Rajesh Kulkarni; P.Padmanabham

2013-01-01

137

Comparative Genome Analysis in the Integrated Microbial Genomes(IMG) System  

Energy Technology Data Exchange (ETDEWEB)

Comparative genome analysis is critical for the effectiveexploration of a rapidly growing number of complete and draft sequencesfor microbial genomes. The Integrated Microbial Genomes (IMG) system(img.jgi.doe.gov) has been developed as a community resource thatprovides support for comparative analysis of microbial genomes in anintegrated context. IMG allows users to navigate the multidimensionalmicrobial genome data space and focus their analysis on a subset ofgenes, genomes, and functions of interest. IMG provides graphicalviewers, summaries and occurrence profile tools for comparing genes,pathways and functions (terms) across specific genomes. Genes can befurther examined using gene neighborhoods and compared with sequencealignment tools.

Kyrpides, Nikos C.; Markowitz, Victor M.

2006-03-01

138

Highly comparative fetal heart rate analysis.  

UK PubMed Central (United Kingdom)

A database of fetal heart rate (FHR) time series measured from 7 221 patients during labor is analyzed with the aim of learning the types of features of these recordings that are informative of low cord pH. Our 'highly comparative' analysis involves extracting over 9 000 time-series analysis features from each FHR time series, including measures of autocorrelation, entropy, distribution, and various model fits. This diverse collection of features was developed in previous work [1]. We describe five features that most accurately classify a balanced training set of 59 'low pH' and 59 'normal pH' FHR recordings. We then describe five of the features with the strongest linear correlation to cord pH across the full dataset of FHR time series. The features identified in this work may be used as part of a system for guiding intervention during labor in future. This work successfully demonstrates the utility of comparing across a large, interdisciplinary literature on time-series analysis to automatically contribute new scientific results for specific biomedical signal processing challenges.

Fulcher BD; Georgieva AE; Redman CW; Jones NS

2012-01-01

139

Chronic illness and multimorbidity among problem drug users: a comparative cross sectional pilot study in primary care  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Although multimorbidity has important implications for patient care in general practice, limited research has examined chronic illness and health service utilisation among problem drug users. This study aimed to determine chronic illness prevalence and health service utilisation among problem drug users attending primary care for methadone treatment, to compare these rates with matched 'controls' and to develop and pilot test a valid study instrument. Methods A cross-sectional study of patients attending three large urban general practices in Dublin, Ireland for methadone treatment was conducted, and this sample was compared with a control group matched by practice, age, gender and General Medical Services (GMS) status. Results Data were collected on 114 patients. Fifty-seven patients were on methadone treatment, of whom 52(91%) had at least one chronic illness (other then substance use) and 39(68%) were prescribed at least one regular medication. Frequent utilisation of primary care services and secondary care services in the previous six months was observed among patients on methadone treatment and controls, although the former had significantly higher chronic illness prevalence and primary care contact rates. The study instrument facilitated data collection that was feasible and with minimal inter-observer variation. Conclusion Multimorbidity is common among problem drug users attending general practice for methadone treatment. Primary care may therefore have an important role in primary and secondary prevention of chronic illnesses among this population. This study offers a feasible study instrument for further work on this issue. (238 words)

Cullen Walter; O'Brien Sarah; O'Carroll Austin; O'Kelly Fergus D; Bury Gerard

2009-01-01

140

Comparative analysis of microbial DNA labeling methods  

Energy Technology Data Exchange (ETDEWEB)

A comparative analysis was conducted on several methods of radio-labeling microbial DNA, both plasmid and chromosomal molecules, using E. coli, B. subtilis, RI drd 19 and pBR 322 DNA. DNA-DNA hybridization and thermal stability of the duplexes was used to monitor labeling efficiency. Comparison of in vivo, nick-translation, and enzymatic methylation methods demonstrated that the in vivo radiolabeling approach yielded preparations with the lowest specific radioactivity, whereas that of the latter two methods was generally comparable and up to an order of magnitude greater (e.g., 10{sup 4} vs. 10{sup 5} or 10{sup 6} cpm/{mu}g). An advantage of the enzymatic methylation method over the nick-translation approach was the greater stability of the hybrid duplexes, as well as the fact that the reagents used are less expensive. 9 refs., 1 fig.

Svetlichkin, V.V.; Lysenko, A.M.; Ignashov, V.G.; Petrov., N.B.

1985-10-01

 
 
 
 
141

Comparative analysis of three thermal fatigue experiments  

International Nuclear Information System (INIS)

This paper presents an analysis of the ability of different criteria to predict fatigue crack initiation under thermal loading. More precisely the predictions of the number of cycles to crack initiation are compared with experimental results obtained using five different fatigue criteria in three types of thermal fatigue tests (namely the FAT3D, JRC and SPLASH test campaigns). This analysis has revealed that: The conventional criteria based on equivalent strain variation substantially overestimate the lifespan of a structure subjected to thermal loading. A criterion making account for loading multi-axiality is required to estimate thermal fatigue life. Three of the criteria studied give satisfactory results: the Zamrik criterion, the Park and Nelson criterion and a criterion taking hydrostatic pressure into consideration proposed by Amiable et al. The latter should be preferred for the accuracy of its results and the Zamrik criterion for its simplicity. (authors)

2008-01-01

142

Modelling User-Costs in Life Cycle Cost-Benefit (LCCB) analysis  

DEFF Research Database (Denmark)

The importance of including user's costs in Life-Cycle Cost-Benefit analysis of structures is discussed in this paper. This is especially for bridges of great importance. Repair or/and failure of a bridge will usually result in user costs greater than the repair or replacement costs of the bridge. For the society (and the user's) it is therefore of great importance that maintenance or replacement of a bridge is performed in such a way that all costs are minimized - not only the owners cost.

Thoft-Christensen, Palle

2008-01-01

143

Towards for Analyzing Alternatives of Interaction Design Based on Verbal Decision Analysis of User Experience  

Directory of Open Access Journals (Sweden)

Full Text Available In domains (as digital TV, smart home, and tangible interfaces) that represent a new paradigm of interactivity, the decision of the most appropriate interaction design solution is a challenge. HCI researchers have promoted in their works the validation of design alternative solutions with users before producing the final solution. User experience with technology is a subject that has also gained ground in these works in order to analyze the appropriate solution(s). Following this concept, a study was accomplished under the objective of finding a better interaction solution for an application of mobile TV. Three executable applications of mobile TV prototypes were built. A Verbal Decision Analysis model was applied on the investigations for the favorite characteristics in each prototype based on the user’s experience and their intentions of use. This model led a performance of a qualitative analysis which objectified the design of a new prototype.

Marília Soares Mendes; Ana Lisse Carvalho; Elizabeth Furtado; Plácido Rogério Pinheiro

2010-01-01

144

Computer image analysis of comparative genomic hybridization  

Energy Technology Data Exchange (ETDEWEB)

We describe and evaluate the image-processing and analysis techniques we have developed for the quantitative analysis of comparative genomic hybridization. In a typical CGH application, two genomic DNA samples are simultaneously hybridized to metaphase chromosomes and detected with different fluorochromes. The primary data in CGH are contained in the intensity ratios of the fluorochromes as a function of position on the chromosomes, which reflect variation in DNA copy number ratio between the two DNA samples. Analysis involves chromosome segmentation, intensity normalization, background corrections, and calculation of the fluorescence intensity profiles and the ratio profile along the chromosome`s length. Profiles from several copies of the same chromosome in different metaphases are averaged to reduce the noise. Confidence intervals are calculated and displayed for the mean profiles. The techniques were evaluated by examining the variability found in comparisons of two normal genomic DNAs, where the ratio was expected to be constant, and by measuring the ratios obtained for cell lines with cytogenetically documented copy number changes involving several chromosomal segments. The limits of sensitivity of CGH analysis were investigated by simulation. Guidelines for the interpretation of CGH data and indications of areas for future development of the analytical techniques are also presented. 15 refs., 11 figs., 2 tabs.

Piper, J.; Sudar, D.; Pinkel, D. [Lawrence Berkeley Lab., CA (United States)] [and others

1995-01-01

145

Computer image analysis of comparative genomic hybridization.  

UK PubMed Central (United Kingdom)

We describe and evaluate the image-processing and analysis techniques we have developed for the quantitative analysis of comparative genomic hybridization (CGH; Science 258:818, 1992). In a typical CGH application, two genomic DNA samples are simultaneously hybridized to metaphase chromosomes and detected with different fluorochromes. The primary data in CGH are contained in the intensity ratios of the fluorochromes as a function of position on the chromosomes, which reflect variation in DNA copy number ratio between the two DNA samples. Analysis involves chromosome segmentation, intensity normalization, background corrections, and calculation of the fluorescence intensity profiles and the ratio profile along the chromosome's length. Profiles from several copies of the same chromosome in different metaphases are averaged to reduce the noise. Confidence intervals are calculated and displayed for the mean profiles. The techniques were evaluated by examining the variability found in comparisons of two normal genomic DNAs, where the ratio was expected to be constant, and by measuring the ratios obtained for cell lines with cytogenetically documented copy number changes involving several chromosomal segments. The limits of sensitivity of CGH analysis were investigated by simulation. Guidelines for the interpretation of CGH data and indications of areas for future development of the analytical techniques are also presented.

Piper J; Rutovitz D; Sudar D; Kallioniemi A; Kallioniemi OP; Waldman FM; Gray JW; Pinkel D

1995-01-01

146

Light water reactor fuel analysis code FEMAXI-IV(Ver.2). Detailed structure and user`s manual  

Energy Technology Data Exchange (ETDEWEB)

A light water reactor fuel behavior analysis code FEMAXI-IV(Ver.2) was developed as an improved version of FEMAXI-IV. Development of FEMAXI-IV has been already finished in 1992, though a detailed structure and input manual of the code have not been open to users yet. Here, the basic theories and structure, the models and numerical solutions applied to FEMAXI-IV(Ver.2), and the material properties adopted in the code are described in detail. In FEMAXI-IV(Ver.2), programming bugs in previous FEMAXI-IV were eliminated, renewal of the pellet thermal conductivity was performed, and a model of thermal-stress restraint on FP gas release was incorporated. For facilitation of effective and wide-ranging application of the code, methods of input/output of the code are also described in detail, and sample output is included. (author)

Suzuki, Motoe [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment; Saitou, Hiroaki

1997-11-01

147

Family of users of a psychosocial attention center: a comprehensive analysis in Schütz - preview note  

Directory of Open Access Journals (Sweden)

Full Text Available Introduction: Because of the recent advances reached by Brazilian Psychiatric Reform movement, it becomes important to evaluate the alternative services, amongst them, the Psychosocial Attention Centers (CAPS), in the family of the user’s point of view about these services. Objective: Understanding the perception of the user’s family about a CAPS, concerning to the team work. Methodology: The study follows a qualitative and phenomenological approach. After the approval of the ethics committee, data collection was made in “CAIS Mental Centro” CAPS, in Porto Alegre city, Rio Grande do Sul State, during October and November, 2006, with the following guiding question: “Talk about the work of the team of CAIS Mental Centro - Psychosocial Attention Center.” Results: We carried through 13 interviews with the familiars that were more interested in the treatment of the user. Information analysis will be developed according to the comprehensive interpretation, from the following analysis categories: social everyday, intersubjectivity, typification, social relations and social action. So, we will search for the comprehension on how the familiar one experience the work of the team in a CAPS, using as support the phenomenological sociology of Alfred Schütz. Conclusion: We will deepen the analysis later, however, we can stand out that this research will be important because it will be able to contribute for the improvement of the mental health assistance of the users and families that use the CAPS, beyond serving as knowledge source for the construction of possible actions in mental health.

Marcio Wagner Camatta; Jacó Fernando Schneider

2007-01-01

148

Regression Analysis of Effective Factor on People Participation in Protecting, Revitalizing, Developing and Using Renewable Natural Resources in Ilam Province from the View of Users  

Directory of Open Access Journals (Sweden)

Full Text Available Problem statement: The purpose of this study was the regression analysis of effective factor on people participation in protecting, revitalizing, developing and using renewable natural resources in Ilam province. Approach: This study was a casual comparative and applies one. Sample was taken from natural resources users. Results: The sample size of groups was 317 for users respectively. For sample selection, stratified, cluster and multiple sampling were utilized. The main tools for gathering data were questionnaire. The reliability and validity of the questionnaire were obtained by experts and pilot study and its Alfa level was 88%. Descriptive and inferential statistics were used and data was analyzed by sp. 15. To test the hypothesis, correlation, multiple regressions were employed. Conclusion: The result indicated that level of education, rate of media using, users trusting on natural resources executive, consulting with users before implementation the plans, number of cattles, kind of occupation, users membership in public institution and organization, social status of users, Technical knowledge of users, present status of natural of natural resources extensive plans, political and low full support of users, amount of loan received by users and organizing nature assistant, have a significant role on people participation on protecting, revitalizing, developing and using renewable natural resources.

Bagher Arayesh; Sayed J. Hosseini

2010-01-01

149

"Do Users Do What They Think They Do?"- A Comparative Study of User Perceived and Actual Information Searching Behaviour in the National Electronic Library of Infection  

Science.gov (United States)

In the last decade, the Internet has profoundly changed the delivery of healthcare. Medical websites for professionals and patients are playing an increasingly important role in providing the latest evidence-based knowledge for professionals, facilitating virtual patient support groups, and providing an invaluable information source for patients. Information seeking is the key user activity on the Internet. However, the discrepancy between what information is available and what the user is able to find has a profound effect on user satisfaction. The UK National electronic Library of Infection (NeLI, www.neli.org.uk) and its subsidiary projects provide a single-access portal for quality-appraised evidence in infectious diseases. We use this national portal, as test-bed for investigating our research questions. In this paper, we investigate actual and perceived user navigation behaviour that reveals important information about user perceptions and actions, in searching for information. Our results show: (i) all users were able to access information they were seeking; (ii) broadly, there is an agreement between "reported" behaviour (from questionnaires) and "observed" behaviour (from web logs), although some important differences were identified; (iii) both browsing and searching were equally used to answer specific questions and (iv) the preferred route for browsing for data on the NeLI website was to enter via the "Top Ten Topics" menu option. These findings provide important insights into how to improve user experience and satisfaction with health information websites.

Roy, Anjana; Kostkova, Patty; Catchpole, Mike; Carson, Ewart

150

User Suggestions Extraction from customer Reviews A Sentiment Analysis approach  

Directory of Open Access Journals (Sweden)

Full Text Available Customer review is a major criterion for the improvement of the quality of services rendered and enhancement of the deliverables. Blogs, articles and discussion forums, provide manufacturers or sellers with a good understanding of the reception level of their products in the competitive market. An interesting area from the business analysis perspective, this paper discusses an opinion based mining technique for the extraction of the relevant data using Natural Language Processing and text analysis, and comprehends suggestions from an actionable feedback.

Vishwanath.J,; Aishwarya.S

2011-01-01

151

Blowfish Encryption: A Comparative Analysis using VHDL  

Directory of Open Access Journals (Sweden)

Full Text Available Data security has always been important in all aspects of life. Data may contain several form of information that we want to secure from any unauthorized access. It can be all the more important as technology continues to control various operations in our day to day life Reprogrammable devices are highly attractive options for hardware implementations of encryption algorithms as they provide cryptographic algorithm agility, physical security, and potentially much higher performance, therefore this paper investigates a hardware design to efficiently implement a special type block ciphers in VHDL and its comparative analysis in different parameter variation . This hardware design is applied to the new secret and variable size key block cipher called Blowfish designed to meet the requirements of the previous known standard and to increase security and to improve performance. The proposed algorithm will be used a variable key size.

Deepak Kumar Dakate; Pawan Dubey

2012-01-01

152

Empirical analysis of web-based user-object bipartite networks  

CERN Multimedia

Understanding the structure and evolution of web-based user-object networks is a significant task since they play a crucial role in e-commerce nowadays. This Letter reports the empirical analysis on two large-scale web sites, audioscrobbler.com and del.icio.us, where users are connected with music groups and bookmarks, respectively. The degree distributions and degree-degree correlations for both users and objects are reported. We propose a new index, named collaborative clustering coefficient, to quantify the clustering behavior based on the collaborative selection. Accordingly, the clustering properties and clustering-degree correlations are investigated. We report some novel phenomena well characterizing the selection mechanism of web users and outline the relevance of these phenomena to the information recommendation problem.

Shang, Mingsheng; Zhang, Yi-Cheng; Zhou, Tao

2009-01-01

153

Comparative Analysis of Various Cloud Technologies  

Directory of Open Access Journals (Sweden)

Full Text Available With the increasing prevalence and demand of large scale cloud computing environment, a researcher has to draw more attention towards the services provided by the CLOUD. As the access to the server is increasing, centralized and distributed computing architecture will produce bottlenecks data which affect the quality of cloud computing services and bring the huge support to users. In this paper we are going to propose certain vital aspects such as memory utilization, storage capacity to check the efficiency and performance of various clouds in cloud computing environment. This is based upon the static data. The proposed mechanism enables users to access memories in various systems depending on the predefined criteria. Selection method for accessing the memory of a resource is properly introduced in this paper. Our evaluation results show that the aggregation of various clouds is effective in indicating the better efficiency and also to reduce network traffic sent over cloud networks.

akanksha garg; Dr. Gurdev Singh

2012-01-01

154

Matrix Analysis of the Insider Threat (MAIT) User's Manual.  

Science.gov (United States)

MAIT is a sophisticated method for the analysis of safeguards or security systems that determines if single or multiple insiders can covertly sabotage a facility or system, or can covertly divert a resource that is present in the facility or system. The M...

J. A. Stoddard T. L. McDaniel

1981-01-01

155

Comparative Analysis of Competitive Strategy Implementation  

Directory of Open Access Journals (Sweden)

Full Text Available This paper presents research findings on Competitive Strategy Implementation which compared the levels of strategy implementation achieved by different generic strategy groups, comprising firms inclined towards low cost leadership, differentiation or dual strategic advantage.  The study sought to determine the preferences for use of implementation armaments and compared how such armaments related to the level of implementation achieved.   Respondents comprised 71 top executives from 59 companies among the top 300 private sector firms in Kenya.  SPSS software was used to conduct t-test, ANOVA, and multiple linear regression analysis, to within 95% confidence interval or 5% statistical significance. The results indicated that there was no significant difference between the levels of strategy implementation achieved by any pair set of the three strategic groups.  The study revealed that the predictors of strategy implementation include the firm’s capacity to overcome resistance to change, having incentives based on meeting strictly quantitative targets, adopting a win-lose competitive posture, its effectiveness in strategy implementation, and the environmental rate of change.  The results also indicated that there was no significant difference between the preferences for use of either win-lose or win-win competition by any pair set of the strategic groups. 

Maina A. S. Waweru

2011-01-01

156

Comparative analysis of selected fuel cell vehicles  

Energy Technology Data Exchange (ETDEWEB)

Vehicles powered by fuel cells operate more efficiently, more quietly, and more cleanly than internal combustion engines (ICEs). Furthermore, methanol-fueled fuel cell vehicles (FCVs) can utilize major elements of the existing fueling infrastructure of present-day liquid-fueled ICE vehicles (ICEVs). DOE has maintained an active program to stimulate the development and demonstration o fuel cell technologies in conjunction with rechargeable batteries in road vehicles. The purpose of this study is to identify and assess the availability of data on FCVs, and to develop a vehicle subsystem structure that can be used to compare both FCVs and ICEV, from a number of perspectives--environmental impacts, energy utilization, materials usage, and life cycle costs. This report focuses on methanol-fueled FCVs fueled by gasoline, methanol, and diesel fuel that are likely to be demonstratable by the year 2000. The comparative analysis presented covers four vehicles--two passenger vehicles and two urban transit buses. The passenger vehicles include an ICEV using either gasoline or methanol and an FCV using methanol. The FCV uses a Proton Exchange Membrane (PEM) fuel cell, an on-board methanol reformer, mid-term batteries, and an AC motor. The transit bus ICEV was evaluated for both diesel and methanol fuels. The transit bus FCV runs on methanol and uses a Phosphoric Acid Fuel Cell (PAFC) fuel cell, near-term batteries, a DC motor, and an on-board methanol reformer. 75 refs.

NONE

1993-05-07

157

COMPARATIVE ANALYSIS OF PTERYGIUM CLINICAL CHARACTERISTICS  

Directory of Open Access Journals (Sweden)

Full Text Available The aim of the research was to investigate the mutual relatedness of the clinical characteristics of pterygium (duration of the disease, size, grade, presence of Fuchs' patches and recurrence) and to point to the possibility of predicting the recurrence.For the purpose of research, a group of 55 patients with pterygium was recruited. The patients were operated using the technique by Arlt at the Ophthalmology Clinic in Nis, where a complete clinical examination was also performed. Anamnestic data were collected preoperatively. The size of external scum was measured with a millimeter scale ruler and Tan's biomicroscopic method was used to verify the grade. In order to observe the complications and recurrence, all patients were monitored postoperatively for one year.Pterygium represents a slow-growing formation which is confirmed by a high statistical significance (p < 0.001) of a correlation between its size and duration of development. Along with the growth of pterygium, its grade also increases. The reported difference in size between the two farthest grades – I and III has statistical significance (p < 0.001). Statistically, Fuchs' patches are more often present (p < 0.05) in larger pterygia. Compared to other factors, the presence of Fuchs' patches in pterygia increases the relative risk of recurrence by 6.62 times.A comparative analysis of clinical characteristics of pterygium is a good basis for predicting the recurrence, which represents the greatest problem in the treatment of this widespread disease.

Boban Dzunic; Predrag Jovanovic; Aleksandar Petrovic

2009-01-01

158

User Defined Data in the New Analysis Model of the BaBar Experiment  

International Nuclear Information System (INIS)

The BaBar experiment has recently revised its Analysis Model. One of the key ingredient of BaBar new Analysis Model is the support of the capability to add to the Event Store user defined data, which can be the output of complex computations performed at an advanced stage of a physics analysis, and are associated to analysis objects. In order to provide flexibility and extensibility with respect to object types, template generic programming has been adopted. In this way the model is non-intrusive with respect to reconstruction and analysis objects it manages, not requiring changes in their interfaces and implementations. Technological details are hidden as much as possible to the user, providing a simple interface. In this paper we present some of the limitations of the old model and how they are addressed by the new Analysis Model.

2005-01-01

159

NFAP: the nonlinear finite element analysis program. Users manual; Version 1977  

International Nuclear Information System (INIS)

A brief outline of the analysis capability together with the input instructions are given for a nonlinear finite element analysis program called NFAP, which is an extended version of the NONSAP Program. Extensions include additional element types, material models and several user's features as further described in the report. Similar to NONSAP, the NFAP program can be used for conducting linear or nonlinear analysis of various structures under static or dynamic loadings. Nonlinearities involve both nonlinear materials and large deformations.

1978-01-01

160

Anti-human immunodeficiency virus-1 antibody titers in injection drug users compared to sexually infected individuals  

Scientific Electronic Library Online (English)

Full Text Available Abstract in english Sera from infected injection drug users (IDU) have shown to have antibodies against synthetic human immunodeficiency virus-1 (HIV-1) envelope peptides more frequently. In this study, reactivity of 48 IDU plasma were compared to 60 plasmas obtained from sexually infected individuals (S). The overall reactivity of plasma from IDU compared to S was higher, and the reactivity titers were much higher for IDU plasma than S. IDU plasma also showed a broader antibody response. Th (more) e higher reactivity titers were observed mainly for the gp41 immunodominant epitope and V3 peptides corresponding to the consensus sequences of HIV-1 subtypes/variants prevalent in Brazil (B, F, C) indicating the specificity in the higher immune response of IDU.

Bongertz, Vera; Ouverney, Elaine Priscilla; Teixeira, Sylvia LM; Silva-de-Jesus, Carlos; Hacker, Mariana A; Morgado, Mariza G; Bastos, Francisco I; The Brazilian Network for HIV Isolation and Characterization

2003-03-01

 
 
 
 
161

Anti-human immunodeficiency virus-1 antibody titers in injection drug users compared to sexually infected individuals  

Directory of Open Access Journals (Sweden)

Full Text Available Sera from infected injection drug users (IDU) have shown to have antibodies against synthetic human immunodeficiency virus-1 (HIV-1) envelope peptides more frequently. In this study, reactivity of 48 IDU plasma were compared to 60 plasmas obtained from sexually infected individuals (S). The overall reactivity of plasma from IDU compared to S was higher, and the reactivity titers were much higher for IDU plasma than S. IDU plasma also showed a broader antibody response. The higher reactivity titers were observed mainly for the gp41 immunodominant epitope and V3 peptides corresponding to the consensus sequences of HIV-1 subtypes/variants prevalent in Brazil (B, F, C) indicating the specificity in the higher immune response of IDU.

Vera Bongertz; Elaine Priscilla Ouverney; Sylvia LM Teixeira; Carlos Silva-de-Jesus; Mariana A Hacker; Mariza G Morgado; Francisco I Bastos

2003-01-01

162

Comparative kinetic analysis of two fungal ?-glucosidases  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background The enzymatic hydrolysis of cellulose is still considered as one of the main limiting steps of the biological production of biofuels from lignocellulosic biomass. It is a complex multistep process, and various kinetic models have been proposed. The cellulase enzymatic cocktail secreted by Trichoderma reesei has been intensively investigated. ?-glucosidases are one of a number of cellulolytic enzymes, and catalyze the last step releasing glucose from the inhibitory cellobiose. ?-glucosidase (BGL1) is very poorly secreted by Trichoderma reesei strains, and complete hydrolysis of cellulose often requires supplementation with a commercial ?-glucosidase preparation such as that from Aspergillus niger (Novozymes SP188). Surprisingly, kinetic modeling of ?-glucosidases lacks reliable data, and the possible differences between native T. reesei and supplemented ?-glucosidases are not taken into consideration, possibly because of the difficulty of purifying BGL1. Results A comparative kinetic analysis of ?-glucosidase from Aspergillus niger and BGL1 from Trichoderma reesei, purified using a new and efficient fast protein liquid chromatography protocol, was performed. This purification is characterized by two major steps, including the adsorption of the major cellulases onto crystalline cellulose, and a final purification factor of 53. Quantitative analysis of the resulting ?-glucosidase fraction from T. reesei showed it to be 95% pure. Kinetic parameters were determined using cellobiose and a chromogenic artificial substrate. A new method allowing easy and rapid determination of the kinetic parameters was also developed. ?-Glucosidase SP188 (Km = 0.57 mM; Kp = 2.70 mM) has a lower specific activity than BGL1 (Km = 0.38 mM; Kp = 3.25 mM) and is also more sensitive to glucose inhibition. A Michaelis-Menten model integrating competitive inhibition by the product (glucose) has been validated and is able to predict the ?-glucosidase activity of both enzymes. Conclusions This article provides a useful comparison between the activity of ?-glucosidases from two different fungi, and shows the importance of fully characterizing both enzymes. A Michaelis-Menten model was developed, including glucose inhibition and kinetic parameters, which were accurately determined and compared. This model can be further integrated into a cellulose hydrolysis model dissociating ?-glucosidase activity from that of other cellulases. It can also help to define the optimal enzymatic cocktails for new ?-glucosidase activities.

Chauve Marie; Mathis Hugues; Huc Delphine; Casanave Dominique; Monot Frédéric; Ferreira Nicolas

2010-01-01

163

CULTURE AND SOCIAL MEDIA USAGE: ANALYSIS OF JAPANESE TWITTER USERS  

Directory of Open Access Journals (Sweden)

Full Text Available Twitter, one of the most popular microblogging tools, has been used extensively all around the world. However, up to date, no study has addressed how culture influences the use of this communication platform. In order to close the literature gap and promote cross-cultural understandings, this paper content analyzed 4,000 tweets from 200 college students in Japan and the USA. The results showed that Japanese college students post more self-related messages and ask fewer questions compared to American college students. It was also found that tweets that refer to TV are more common in Japan, whereas sports and news tweets stand out in the USA. The evidence from this study suggests that there is a subtle and complicated relationship between culture and Twitter use.

Adam Acar; Ayaka Deguchi

2013-01-01

164

Enabling Semantic Analysis of User Browsing Patterns in the Web of Data  

CERN Multimedia

A useful step towards better interpretation and analysis of the usage patterns is to formalize the semantics of the resources that users are accessing in the Web. We focus on this problem and present an approach for the semantic formalization of usage logs, which lays the basis for eective techniques of querying expressive usage patterns. We also present a query answering approach, which is useful to nd in the logs expressive patterns of usage behavior via formulation of semantic and temporal-based constraints. We have processed over 30 thousand user browsing sessions extracted from usage logs of DBPedia and Semantic Web Dog Food. All these events are formalized semantically using respective domain ontologies and RDF representations of the Web resources being accessed. We show the eectiveness of our approach through experimental results, providing in this way an exploratory analysis of the way users browse theWeb of Data.

Hoxha, Julia; Agarwal, Sudhir

2012-01-01

165

QoS Perceived by Users of Ubiquitous UMTS: Compositional Models and Thorough Analysis  

Directory of Open Access Journals (Sweden)

Full Text Available .This paper provides a QoS analysis of a dynamic, ubiquitous UMTS network scenario in the automotive context identi_ed in the ongoing EC HIDENETS project. The scenario comprises different types of mobile users, applications, traffic conditions, and outage events reducing the available network resources. Adopting a compositional modeling approach based on Stochastic Activity Networks (SAN) formalism, we analyze the Quality of Service (QoS) both from the users' perspective and from the mobile operator's one. The classical QoS analysis is enhanced by taking into account the congestion both caused by the outage events and by the varying traffic conditions. The impact of users' mobility on the selected QoS indicators is further investigated combining the SAN modelling approach with an ad-hoc mobility simulator, which also allows to re_ne the model representing the UMTS network behavior.

Andrea Bondavalli; Paolo Lollini; Leonardo Montecchi

2009-01-01

166

Neutron activation analysis at the Californium User Facility for Neutron Science  

International Nuclear Information System (INIS)

The Californium User Facility (CUF) for Neutron Science has been established to provide 252Cf-based neutron irradiation services and research capabilities including neutron activation analysis (NAA). A major advantage of the CUF is its accessibility and controlled experimental conditions compared with those of a reactor environment The CUF maintains the world's largest inventory of compact 252Cf neutron sources. Neutron source intensities of ? 1011 neutrons/s are available for irradiations within a contamination-free hot cell, capable of providing thermal and fast neutron fluxes exceeding 108 cm-2 s-1 at the sample. Total flux of ?109 cm-2 s-1 is feasible for large-volume irradiation rabbits within the 252Cf storage pool. Neutron and gamma transport calculations have been performed using the Monte Carlo transport code MCNP to estimate irradiation fluxes available for sample activation within the hot cell and storage pool and to design and optimize a prompt gamma NAA (PGNAA) configuration for large sample volumes. Confirmatory NAA irradiations have been performed within the pool. Gamma spectroscopy capabilities including PGNAA are being established within the CUF for sample analysis

1997-01-01

167

Comparative analysis of haplotype association mapping algorithms  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Finding the genetic causes of quantitative traits is a complex and difficult task. Classical methods for mapping quantitative trail loci (QTL) in miceuse an F2 cross between two strains with substantially different phenotype and an interval mapping method to compute confidence intervals at each position in the genome. This process requires significant resources for breeding and genotyping, and the data generated are usually only applicable to one phenotype of interest. Recently, we reported the application of a haplotype association mapping method which utilizes dense genotyping data across a diverse panel of inbred mouse strains and a marker association algorithm that is independent of any specific phenotype. As the availability of genotyping data grows in size and density, analysis of these haplotype association mapping methods should be of increasing value to the statistical genetics community. Results We describe a detailed comparative analysis of variations on our marker association method. In particular, we describe the use of inferred haplotypes from adjacent SNPs, parametric and nonparametric statistics, and control of multiple testing error. These results show that nonparametric methods are slightly better in the test cases we study, although the choice of test statistic may often be dependent on the specific phenotype and haplotype structure being studied. The use of multi-SNP windows to infer local haplotype structure is critical to the use of a diverse panel of inbred strains for QTL mapping. Finally, because the marginal effect of any single gene in a complex disease is often relatively small, these methods require the use of sensitive methods for controlling family-wise error. We also report our initial application of this method to phenotypes cataloged in the Mouse Phenome Database. Conclusion The use of inbred strains of mice for QTL mapping has many advantages over traditional methods. However, there are also limitations in comparison to the traditional linkage analysis from F2 and RI lines. Application of these methods requires careful consideration of algorithmic choices based on both theoretical and practical factors. Our findings suggest general guidelines, though a complete evaluation of these methods can only be performed as more genetic data in complex diseases becomes available.

McClurg Phillip; Pletcher Mathew T; Wiltshire Tim; Su Andrew I

2006-01-01

168

Comparative analysis of haplotype association mapping algorithms.  

UK PubMed Central (United Kingdom)

BACKGROUND: Finding the genetic causes of quantitative traits is a complex and difficult task. Classical methods for mapping quantitative trail loci (QTL) in miceuse an F2 cross between two strains with substantially different phenotype and an interval mapping method to compute confidence intervals at each position in the genome. This process requires significant resources for breeding and genotyping, and the data generated are usually only applicable to one phenotype of interest. Recently, we reported the application of a haplotype association mapping method which utilizes dense genotyping data across a diverse panel of inbred mouse strains and a marker association algorithm that is independent of any specific phenotype. As the availability of genotyping data grows in size and density, analysis of these haplotype association mapping methods should be of increasing value to the statistical genetics community. RESULTS: We describe a detailed comparative analysis of variations on our marker association method. In particular, we describe the use of inferred haplotypes from adjacent SNPs, parametric and nonparametric statistics, and control of multiple testing error. These results show that nonparametric methods are slightly better in the test cases we study, although the choice of test statistic may often be dependent on the specific phenotype and haplotype structure being studied. The use of multi-SNP windows to infer local haplotype structure is critical to the use of a diverse panel of inbred strains for QTL mapping. Finally, because the marginal effect of any single gene in a complex disease is often relatively small, these methods require the use of sensitive methods for controlling family-wise error. We also report our initial application of this method to phenotypes cataloged in the Mouse Phenome Database. CONCLUSION: The use of inbred strains of mice for QTL mapping has many advantages over traditional methods. However, there are also limitations in comparison to the traditional linkage analysis from F2 and RI lines. Application of these methods requires careful consideration of algorithmic choices based on both theoretical and practical factors. Our findings suggest general guidelines, though a complete evaluation of these methods can only be performed as more genetic data in complex diseases becomes available.

McClurg P; Pletcher MT; Wiltshire T; Su AI

2006-01-01

169

Comparative analysis of safety related site characteristics  

Energy Technology Data Exchange (ETDEWEB)

This document presents a comparative analysis of site characteristics related to long-term safety for the two candidate sites for a final repository for spent nuclear fuel in Forsmark (municipality of Oesthammar) and in Laxemar (municipality of Oskarshamn) from the point of view of site selection. The analyses are based on the updated site descriptions of Forsmark /SKB 2008a/ and Laxemar /SKB 2009a/, together with associated updated repository layouts and designs /SKB 2008b and SKB 2009b/. The basis for the comparison is thus two equally and thoroughly assessed sites. However, the analyses presented here are focussed on differences between the sites rather than evaluating them in absolute terms. The document serves as a basis for the site selection, from the perspective of long-term safety, in SKB's application for a final repository. A full evaluation of safety is made for a repository at the selected site in the safety assessment SR-Site /SKB 2011/, referred to as SR-Site main report in the following

Andersson, Johan (ed.)

2010-12-15

170

Comparative analysis of safety related site characteristics  

International Nuclear Information System (INIS)

This document presents a comparative analysis of site characteristics related to long-term safety for the two candidate sites for a final repository for spent nuclear fuel in Forsmark (municipality of Oesthammar) and in Laxemar (municipality of Oskarshamn) from the point of view of site selection. The analyses are based on the updated site descriptions of Forsmark /SKB 2008a/ and Laxemar /SKB 2009a/, together with associated updated repository layouts and designs /SKB 2008b and SKB 2009b/. The basis for the comparison is thus two equally and thoroughly assessed sites. However, the analyses presented here are focussed on differences between the sites rather than evaluating them in absolute terms. The document serves as a basis for the site selection, from the perspective of long-term safety, in SKB's application for a final repository. A full evaluation of safety is made for a repository at the selected site in the safety assessment SR-Site /SKB 2011/, referred to as SR-Site main report in the following

2010-01-01

171

Network and Internetwork a compared Multiwavelength Analysis  

CERN Multimedia

We analyze the temporal behavior of Network Bright Points (NBPs), present in the solar atmosphere, using a set of data acquired during coordinated observations between ground-based observatories (mainly at the NSO/Sacramento Peak) and the Michelson Doppler Interferometer onboard SOHO. We find that, at any time during the observational sequence, all the NBPs visible in the NaD2 images are co-spatial within 1 arcsec with locations of enhanced magnetic field. In analogy with the Ca II K line, the NaD2 line center emission can be used as a proxy for magnetic structures. We also compare the oscillation properties of NBPs and internetwork areas. At photospheric levels no differences between the two structures are found in power spectra, but analysis of phase and coherence spectra suggests the presence of downward propagating waves in the internetwork. At chromospheric levels some differences are evident in the power spectrum between NBPs and internetwork. The power spectrum of NBPs at the Halpha core wavelength sho...

Cauzzi, G; Falciani, R

2000-01-01

172

System Reconfiguration Analysis Program (SYSRAP): User's manual  

Energy Technology Data Exchange (ETDEWEB)

SYSRAP (for System Reconfiguration Analysis Program) is a distribution automation applications software package for assessing system reconfiguration opportunities and volt/var control on radial electric distribution feeders. The software program which is written in Turbo Pascal Version 5.0 was developed by the Oak Ridge National Laboratory as part of the Athens Automation and Control Experiment (AACE), a large-scale distribution automation and control project sponsored by the US Department of Energy, Office of Energy Management. SYSRAP is unique because it combines power flow and short-circuit analyses with data base management and is especially well suited for answering system operator questions with respect to switch orders, capacitor bank dispatch, and regulator tap adjustments. The program runs on a personal computer, executes power flow and short-circuit analyses for detailed feeder models including voltage-sensitive loads, and is adept at reorganizing the feeders' data base to reflect switching operations and changes in the status of volt/var equipment. The topics covered in the manual include: the installation of SYSRAP on an IBM or IBM-compatible personal computer; background and motivation for the software program along with functional descriptions of its capabilities, algorithms, and data handling techniques; descriptions of the SYSRAP screens, menus, and expected input data; and help information for menu selections. Also, the manual illustrates the use of SYSRAP to investigate some distribution automation applications; and describes how RTSYSRAP, the real-time version of SYSRAP, interfaces to a Supervisory Control and Data Acquisition System via an ASCII data file consisting of distribution system analog and status values. 18 figs., 7 tabs.

Patton, J.B. (Patton (J.B.), Knoxville, TN (USA)); Rizy, D.T. (Oak Ridge National Lab., TN (USA)); Lawler, J.S. (Tennessee Univ., Knoxville, TN (USA). Dept. of Electrical Engineering)

1991-04-01

173

STAR (structural test and analysis database for reliable design) Version 7.1. User's manual  

International Nuclear Information System (INIS)

The STAR is characterized by having two supporting functions for developing strength evaluation methods in addition to usual data base management system, an automatic damage calculation function with external programs and an analysis system on accuracy of prediction. This report describes the structure and user information for execution of STAR code. (K. Itami)

1998-01-01

174

Digital Avionics Information System (DAIS): Training Requirements Analysis Model Users Guide. Final Report.  

Science.gov (United States)

This user's guide describes the functions, logical operations and subroutines, input data requirements, and available outputs of the Training Requirements Analysis Model (TRAMOD), a computerized analytical life cycle cost modeling system for use in the early stages of system design. Operable in a stand-alone mode, TRAMOD can be used for the…

Czuchry, Andrew J.; And Others

175

Inventory of activation analysis facilities available in the European Community to Industrial users  

International Nuclear Information System (INIS)

This inventory includes lists of activation equipment produced in the European Community, facilities available for industrial users and activation laboratories existing in the European companies. The aim of this inventory is to provide all information that may be useful, to companies interested in activation analysis, as well as to give an idea on existing routine applications and on the European market in facilities.

1975-01-01

176

Cultural Diversity and End-User Searching: An Analysis by Gender and Language Background.  

Science.gov (United States)

Discusses the increasing diversity on college campuses with foreign students and reports results of a study on end-user searching that employs both gender and language variables in analyzing search success, techniques, and satisfaction. An analysis by language background indicates a correlation between native language and searching ability.…

Zoe, Lucinda R.; DiMartino, Diane

2000-01-01

177

Iterative Analysis of Pages in Document Collections for Efficient User Interaction  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The analysis of sets of degraded documents, like historical ones, is error-prone and requires human help to achieve acceptable quality levels. However, human interaction raises 3 main issues when processing important amounts of pages: none of the user or the system should wait for work; information ...

Chazalon, Joseph; Coüasnon, Bertrand; Lemaitre, Aurélie

178

Comparative analysis of pharmacophore screening tools.  

UK PubMed Central (United Kingdom)

The pharmacophore concept is of central importance in computer-aided drug design (CADD) mainly because of its successful application in medicinal chemistry and, in particular, high-throughput virtual screening (HTVS). The simplicity of the pharmacophore definition enables the complexity of molecular interactions between ligand and receptor to be reduced to a handful set of features. With many pharmacophore screening softwares available, it is of the utmost interest to explore the behavior of these tools when applied to different biological systems. In this work, we present a comparative analysis of eight pharmacophore screening algorithms (Catalyst, Unity, LigandScout, Phase, Pharao, MOE, Pharmer, and POT) for their use in typical HTVS campaigns against four different biological targets by using default settings. The results herein presented show how the performance of each pharmacophore screening tool might be specifically related to factors such as the characteristics of the binding pocket, the use of specific pharmacophore features, and the use of these techniques in specific steps/contexts of the drug discovery pipeline. Algorithms with rmsd-based scoring functions are able to predict more compound poses correctly as overlay-based scoring functions. However, the ratio of correctly predicted compound poses versus incorrectly predicted poses is better for overlay-based scoring functions that also ensure better performances in compound library enrichments. While the ensemble of these observations can be used to choose the most appropriate class of algorithm for specific virtual screening projects, we remarked that pharmacophore algorithms are often equally good, and in this respect, we also analyzed how pharmacophore algorithms can be combined together in order to increase the success of hit compound identification. This study provides a valuable benchmark set for further developments in the field of pharmacophore search algorithms, e.g., by using pose predictions and compound library enrichment criteria.

Sanders MP; Barbosa AJ; Zarzycka B; Nicolaes GA; Klomp JP; de Vlieg J; Del Rio A

2012-06-01

179

Comparative analysis of pharmacophore screening tools.  

Science.gov (United States)

The pharmacophore concept is of central importance in computer-aided drug design (CADD) mainly because of its successful application in medicinal chemistry and, in particular, high-throughput virtual screening (HTVS). The simplicity of the pharmacophore definition enables the complexity of molecular interactions between ligand and receptor to be reduced to a handful set of features. With many pharmacophore screening softwares available, it is of the utmost interest to explore the behavior of these tools when applied to different biological systems. In this work, we present a comparative analysis of eight pharmacophore screening algorithms (Catalyst, Unity, LigandScout, Phase, Pharao, MOE, Pharmer, and POT) for their use in typical HTVS campaigns against four different biological targets by using default settings. The results herein presented show how the performance of each pharmacophore screening tool might be specifically related to factors such as the characteristics of the binding pocket, the use of specific pharmacophore features, and the use of these techniques in specific steps/contexts of the drug discovery pipeline. Algorithms with rmsd-based scoring functions are able to predict more compound poses correctly as overlay-based scoring functions. However, the ratio of correctly predicted compound poses versus incorrectly predicted poses is better for overlay-based scoring functions that also ensure better performances in compound library enrichments. While the ensemble of these observations can be used to choose the most appropriate class of algorithm for specific virtual screening projects, we remarked that pharmacophore algorithms are often equally good, and in this respect, we also analyzed how pharmacophore algorithms can be combined together in order to increase the success of hit compound identification. This study provides a valuable benchmark set for further developments in the field of pharmacophore search algorithms, e.g., by using pose predictions and compound library enrichment criteria. PMID:22646988

Sanders, Marijn P A; Barbosa, Arménio J M; Zarzycka, Barbara; Nicolaes, Gerry A F; Klomp, Jan P G; de Vlieg, Jacob; Del Rio, Alberto

2012-06-13

180

AUDITOR ROTATION - A CRITICAL AND COMPARATIVE ANALYSIS  

Directory of Open Access Journals (Sweden)

Full Text Available The present paper starts out from the challenge regarding auditor tenure launched in 2010 by the Green Paper of the European Commission Audit Policy: Lessons from the Crisis. According to this document, the European Commission speaks both in favor of the mandatory rotation of the audit firm, and in favor of the mandatory rotation of audit partners. Rotation is considered a solution to mitigate threats to independence generated by familiarity, intimidation and self-interest in the context of a long-term audit-client relationship. At international level, there are several studies on auditor rotation, both empirical (e.g. Lu and Sivaramakrishnan, 2009, Li, 2010, Kaplan and Mauldin, 2008, Jackson et al., 2008) and normative in nature (e.g. Marten et al., 2007, Muller, 2006 and Gelter, 2004). The objective of the present paper is to perform a critical and comparative analysis of the regulations on internal and external rotation in force at international level, in the European Union and in the United States of America. Moreover, arguments both in favor and against mandatory rotation are brought into discussion. With regard to the research design, the paper has a normative approach. The main findings are first of all that by comparison, all regulatory authorities require internal rotation at least in the case of public interest entities, while the external rotation is not in the focus of the regulators. In general, the most strict and detailed requirements are those issued by the Securities and Exchange Commission from the United States of America. Second of all, in favor of mandatory rotation speaks the fact that the auditor becomes less resilient in case of divergence of opinions between him and company management, less stimulated to follow his own interest, and more scrupulous in conducting the audit. However, mandatory rotation may also have negative consequences, thus the debate on the opportunity of this regulatory measure remains open-ended.

Mocanu Mihaela; Stefanescu Aurelia; Turlea Eugeniu

2011-01-01

 
 
 
 
181

Premo and Kansei: A Comparative Analysis  

Directory of Open Access Journals (Sweden)

Full Text Available Kansei Engineering is a technology that enables incorporation of human emotion in design requirements. It has in its perspective that Kansei is unique for different domain and unique for different target user group, and use mainly a verbal measurement instruments in its methodology. The technology is seen to have little shortcoming when there is a need to build universal design for universal target user. It will involve complexity when handling semantics since people do not speak the same language across the planet. Hence, a non-verbal emotion measurement tool is assumed to enhance the capability of K.E. in managing universal Kansei. This study aims to investigate the possibility of integrating PrEmo, a non-verbal self-reporting tool which were developed based on studies across culture and demographical setting into Kansei Engineering. The objectives are to analyze the similarities and differences of Kansei structure resulted by two different measurement tools, non-verbal (PrEmo) and verbal (Kansei checklist) self-reporting instrument, to provide hypothetical evidence of the feasibility of PrEmo as a tool to measure Kansei. 10 websites with significant visual design differences were used as stimuli in the evaluation procedure involving 30 respondents, who provided their Kansei responses using both instruments. The result has shown that the Kansei structure by both instruments are mostly similar, thus provide hypothetical evidence that PrEmo could be used as non-verbal self-reporting instrument to measure Kansei. The findings provide insights into future research for integration of universal Kansei.

Anitawati Mohd Lokman; Khairul Khalil Ishak; Ana Hadiana

2013-01-01

182

Code development and analysis program. RELAP4/MOD7 (Version 2): user's manual  

International Nuclear Information System (INIS)

This manual describes RELAP4/MOD7 (Version 2), which is the latest version of the RELAP4 LPWR blowdown code. Version 2 is a precursor to the final version of RELAP4/MOD7, which will address LPWR LOCA analysis in integral fashion (i.e., blowdown, refill, and reflood in continuous fashion). This manual describes the new code models and provides application information required to utilize the code. It must be used in conjunction with the RELAP4/MOD5 User's Manual (ANCR-NUREG-1335, dated September 1976), and the RELAP4/MOD6 User's Manual.

1978-01-01

183

Sentiment Analysis Based Approaches for Understanding User Context in Web Content?  

Directory of Open Access Journals (Sweden)

Full Text Available In our day to day lives, we highly value the opinions of friends in making decisions about issueslike which brand to buy or which movie to watch. With the increasing popularity of blogs, online reviews andsocial networking sites, the current trend is to look up reviews, expert opinions and discussions on the Web,so that one can make an informed decision. Sentiment analysis, also known as opinion mining is thecomputational study of opinions, sentiments and emotions expressed in natural language for the purpose ofdecision making. Sentiment analysis applies natural language processing techniques and computationallinguistics to extract information about sentiments expressed by authors and readers about a particularsubject, thus helping users in making sense of huge volume of unstructured Web data. Applications likereview classification, product review mining and trend prediction benefit from sentiment analysis basedtechniques. This paper presents a study of different approaches in this field, the state of the art techniquesand current research in Sentiment Analysis based approaches for understanding user's context.We show that information about social relationships can be used to improve user-level sentiment analysis.The main motivation behind our approach is that users that are somehow "connected" may be more likely tohold similar opinions; therefore, relationship information can complement what we can extract about auser's viewpoints from their utterances. Employing Twitter as a source for our experimental data, andworking within a semi-supervised framework, we propose models that are induced either from the Twitterfollower/follower network or from the network in Twitter formed by users referring to each other using "@"mentions. Our transductive learning results reveal that incorporating social-network information can indeedlead to statistically significant sentiment classification improvements over the performance of an approachbased on Support Vector Machines having access only to textual features.

M. SAKTHIVEL; G. HEMA?

2013-01-01

184

Comparing Results from Constant Comparative and Computer Software Methods: A Reflection about Qualitative Data Analysis  

Science.gov (United States)

This study compared qualitative research results obtained by manual constant comparative analysis with results obtained by computer software analysis of the same data. An investigated about issues of trustworthiness and accuracy ensued. Results indicated that the inductive constant comparative data analysis generated 51 codes and two coding levels…

Putten, Jim Vander; Nolen, Amanda L.

2010-01-01

185

Comparative Metagenomics of Gut and Ocean: Identification of Microbial Marker Genes for Complex Environmental Properties(2011 JGI User Meeting)  

Energy Technology Data Exchange (ETDEWEB)

The U.S. Department of Energy Joint Genome Institute (JGI) invited scientists interested in the application of genomics to bioenergy and environmental issues, as well as all current and prospective users and collaborators, to attend the annual DOE JGI Genomics of Energy & Environment Meeting held March 22-24, 2011 in Walnut Creek, Calif. The emphasis of this meeting was on the genomics of renewable energy strategies, carbon cycling, environmental gene discovery, and engineering of fuel-producing organisms. The meeting features presentations by leading scientists advancing these topics. Peer Bork of the European Molecular Biology Laboratory on "Comparative Metagenomics of Gut and Ocean: Identification of Microbial Marker Genes for Complex Environmental Properties" at the 6th annual Genomics of Energy & Environment Meeting on March 23, 2011

Bork, Peer

2011-03-23

186

Delight2 Daylighting Analysis in Energy Plus: Integration and Preliminary User Results  

Energy Technology Data Exchange (ETDEWEB)

DElight is a simulation engine for daylight and electric lighting system analysis in buildings. DElight calculates interior illuminance levels from daylight, and the subsequent contribution required from electric lighting to meet a desired interior illuminance. DElight has been specifically designed to integrate with building thermal simulation tools. This paper updates the DElight capability set, the status of integration into the simulation tool EnergyPlus, and describes a sample analysis of a simple model from the user perspective.

Carroll, William L.; Hitchcock, Robert J.

2005-04-26

187

Bone turnover markers in statin users: a population-based analysis from the Camargo Cohort Study.  

UK PubMed Central (United Kingdom)

OBJECTIVE: To analyze the effects of statin use on bone turnover markers (BTM), in participants from a large population-based cohort. SUBJECTS AND METHODS: Cross-sectional study that included 2431 subjects (1401 women and 930 men) from the Camargo Cohort. We analyzed the differences in serum BTM between statin or non-statin users, by means of a generalized linear model, adjusted for a wide set of covariates and stratified by diabetes status. We also studied the effect of the type of statin, dose, pharmacokinetic properties, and length of treatment, on BTM. RESULTS: Five hundred subjects (21%) were taking statins (273 women and 227 men). Overall, they had lower levels of aminoterminal propeptide of type I collagen (PINP) and C-terminal telopeptide of type I collagen (CTX) than non-users (p<0.0001). BTM levels were significantly lower in diabetic women using statins, than in female non-statin users with diabetes. In men, we found similar results, but only for CTX. All the statins users had lower levels of BTM than non-users, except subjects taking fluvastatin that showed slightly higher values. In the whole sample, no differences between dose or drug-potency were noted regarding BTM. When comparing with non-statin users, only subjects taking lipophilic statins had lower BTM levels (p<0.0001). Serum CTX levels were lower in women using statins for more than 3 vs. 1-3 years (p=0.006). CONCLUSIONS: In a large population-based cohort, serum BTM were lower in participants taking statins than in non-users, and this effect was modulated by diabetes status. Overall, this decrease in BTM was more evident in subjects receiving the more lipophilic statins, especially when using for more than 3 years.

Hernández JL; Olmos JM; Romaña G; Martinez J; Castillo J; Yezerska I; Ramos C; González-Macías J

2013-05-01

188

AITRAC: Augmented Interactive Transient Radiation Analysis by Computer. User's information manual  

International Nuclear Information System (INIS)

AITRAC is a program designed for on-line, interactive, DC, and transient analysis of electronic circuits. The program solves linear and nonlinear simultaneous equations which characterize the mathematical models used to predict circuit response. The program features 100 external node--200 branch capability; conversional, free-format input language; built-in junction, FET, MOS, and switch models; sparse matrix algorithm with extended-precision H matrix and T vector calculations, for fast and accurate execution; linear transconductances: beta, GM, MU, ZM; accurate and fast radiation effects analysis; special interface for user-defined equations; selective control of multiple outputs; graphical outputs in wide and narrow formats; and on-line parameter modification capability. The user describes the problem by entering the circuit topology and part parameters. The program then automatically generates and solves the circuit equations, providing the user with printed or plotted output. The circuit topology and/or part values may then be changed by the user, and a new analysis, requested. Circuit descriptions may be saved on disk files for storage and later use. The program contains built-in standard models for resistors, voltage and current sources, capacitors, inductors including mutual couplings, switches, junction diodes and transistors, FETS, and MOS devices. Nonstandard models may be constructed from standard models or by using the special equations interface. Time functions may be described by straight-line segments or by sine, damped sine, and exponential functions. 42 figures, 1 table

1977-01-01

189

A multivariate analysis of the factors that influence the modification of sexual desire in oral hormonal contraceptive (OC) users  

Directory of Open Access Journals (Sweden)

Full Text Available Objective. This work studied the influencing factors of age, level of education, family planning awareness, relationship with partner, the age at which sexual relationships were initiated, parity, the method of contraceptive previously used, the type of contraceptive pill used and the duration of oral hormonal contraception (OC) use in relation to the modification of sexual desire in OC users. Materials and Methods. Prospective study of 760 OC users at the Family Planning Center “Marina Alta” in Alicante (Spain). A logistical regression analysis was carried out to study the relative risk of reduction in libido, taking other risk factors into account. Results. In the simple analysis, women who initiated sexual relationships between 18 and 25 years of age had a lower sexual desire in comparison with women who were sexually active before the age of 18 (OR = 2.11; CI: 1.15 - 3.91). Nulliparous women had a reduced sexual desire compared with those women that had given birth (OR = 2.32; CI: 1.41 - 3.82). An OC use of between 6 months and 1 year reduced sexual desire in comparison with a use of less than 6 months (OR = 0.24; CI: 0.09 - 0.64). In the multivariate analysis, age (OR = 1.12; CI: 1.01 - 1.21) and the use of OC within an initial 6 month to a year period (OR = 0.24; CI: 0.09 - 0.64) presented a statistically significant relationship with the modification of sexual desire. The level of education, family planning awareness, relationship with partner, the method of contraception previously used and the type of contraceptive pill prescribed showed no statistical significance with the modification of sexual desire in OC users. Conclusions. Sexual desire in OC users decreases as a woman’s age increases and in an early stage of use in the first six months after beginning OC treatment.

Mariano Martin-Loeches; Yadira Pallas; Pedro Lopez Sanchez; Manuel Lloret; Jose Jesús Lopez-Galvez

2011-01-01

190

Formal Model for Data Dependency Analysis between Controls and Actions of a Graphical User Interface  

Directory of Open Access Journals (Sweden)

Full Text Available End-user development is an emerging computer science discipline that provides programming paradigms, techniques, and tools suitable for users not trained in software engineering. One of the techniques that allow ordinary computer users to develop their own applications without the need to learn a classic programming language is a GUI-level programming based on programming-by-demonstration. To build wizard-based tools that assist users in application development and to verify the correctness of user programs, a computer-supported method for GUI-level data dependency analysis is necessary. Therefore, formal model for GUI representation is needed. In this paper, we present a finite state machine for modeling the data dependencies between GUI controls and GUI actions. Furthermore, we present an algorithm for automatic construction of finite state machine for arbitrary GUI application. We show that proposed state aggregation scheme successfully manages state explosion in state machine construction algorithm, which makes the model applicable for applications with complex GUIs.

SKVORC, D.; ZUZAK, I.; SRBLJIC, S.

2012-01-01

191

Transversal analysis of public policies on user fees exemptions in six West African countries.  

UK PubMed Central (United Kingdom)

BACKGROUND: While more and more West African countries are implementing public user fees exemption policies, there is still little knowledge available on this topic. The long time required for scientific production, combined with the needs of decision-makers, led to the creation in 2010 of a project to support implementers in aggregating knowledge on their experiences. This article presents a transversal analysis of user fees exemption policies implemented in Benin, Burkina Faso, Mali, Niger, Togo and Senegal. METHODS: This was a multiple case study with several embedded levels of analysis. The cases were public user fees exemption policies selected by the participants because of their instructive value. The data used in the countries were taken from documentary analysis, interviews and questionnaires. The transversal analysis was based on a framework for studying five implementation components and five actors' attitudes usually encountered in these policies. RESULTS: The analysis of the implementation components revealed: a majority of State financing; maintenance of centrally organized financing; a multiplicity of reimbursement methods; reimbursement delays and/or stock shortages; almost no implementation guides; a lack of support measures; communication plans that were rarely carried out, funded or renewed; health workers who were given general information but not details; poorly informed populations; almost no evaluation systems; ineffective and poorly funded coordination systems; low levels of community involvement; and incomplete referral-evacuation systems. With regard to actors' attitudes, the analysis revealed: objectives that were appreciated by everyone; dissatisfaction with the implementation; specific tensions between healthcare providers and patients; overall satisfaction among patients, but still some problems; the perception that while the financial barrier has been removed, other barriers persist; occasionally a reorganization of practices, service rationing due to lack of reimbursement, and some overcharging or shifting of resources. CONCLUSIONS: This transversal analysis confirms the need to assign a great deal of importance to the implementation of user fees exemption policies once these decisions have been taken. It also highlights some practices that suggest avenues of future research.

Ridde V; Queuille L; Kafando Y; Robert E

2012-01-01

192

CGAP: a new comprehensive platform for the comparative analysis of chloroplast genomes.  

UK PubMed Central (United Kingdom)

BACKGROUND: Chloroplast is an essential organelle in plants which contains independent genome. Chloroplast genomes have been widely used for plant phylogenetic inference recently. The number of complete chloroplast genomes increases rapidly with the development of various genome sequencing projects. However, no comprehensive platform or tool has been developed for the comparative and phylogenetic analysis of chloroplast genomes. Thus, we constructed a comprehensive platform for the comparative and phylogenetic analysis of complete chloroplast genomes which was named as chloroplast genome analysis platform (CGAP). RESULTS: CGAP is an interactive web-based platform which was designed for the comparative analysis of complete chloroplast genomes. CGAP integrated genome collection, visualization, content comparison, phylogeny analysis and annotation functions together. CGAP implemented four web servers including creating complete and regional genome maps of high quality, comparing genome features, constructing phylogenetic trees using complete genome sequences, and annotating draft chloroplast genomes submitted by users. CONCLUSIONS: Both CGAP and source code are available at http://www.herbbol.org:8000/chloroplast. CGAP will facilitate the collection, visualization, comparison and annotation of complete chloroplast genomes. Users can customize the comparative and phylogenetic analysis using their own unpublished chloroplast genomes.

Cheng J; Zeng X; Ren G; Liu Z

2013-01-01

193

Integrated Reliability and Risk Analysis System (IRRAS) Version 2. 0 user's guide  

Energy Technology Data Exchange (ETDEWEB)

The Integrated Reliability and Risk Analysis System (IRRAS) is a state-of-the-art, microcomputer-based probabilistic risk assessment (PRA) model development and analysis tool to address key nuclear plant safety issues. IRRAS is an integrated software tool that gives the user the ability to create and analyze fault trees and accident sequences using a microcomputer. This program provides functions that range from graphical fault tree construction to cut set generation and quantification. Also provided in the system is an integrated full-screen editor for use when interfacing with remote mainframe computer systems. Version 1.0 of the IRRAS program was released in February of 1987. Since that time, many user comments and enhancements have been incorporated into the program providing a much more powerful and user-friendly system. This version has been designated IRRAS 2.0 and is the subject of this user's guide. Version 2.0 of IRRAS provides all of the same capabilities as Version 1.0 and adds a relational data base facility for managing the data, improved functionality, and improved algorithm performance. 9 refs., 292 figs., 4 tabs.

Russell, K.D.; Sattison, M.B. (EG and G Idaho, Inc., Idaho Falls, ID (USA)); Rasmuson, D.M. (Nuclear Regulatory Commission, Washington, DC (USA). Div. of Systems Research)

1990-06-01

194

Development of a graphical user interface for the TRAC plant/safety analysis code  

International Nuclear Information System (INIS)

A graphical user interface (GUI) for the Transient Reactor Analysis Code (TRAC) has been developed at Knolls Atomic Power Laboratory. This X Window based GUI supports the design and analysis process, acting as a preprocessor, runtime editor, help system and post processor to TRAC-PF1/MOD2. TRAC was developed at the Los Alamos National Laboratory (LANL). The preprocessor is an icon-based interface which allows the user to create a TRAC model. When the model is complete, the runtime editor provides the capability to execute and monitor TRAC runs on the workstation or supercomputer. After runs are made, the output processor allows the user to extract and format data from the TRAC graphics file. The TRAC GUI is currently compatible with TRAC-PF1/MOD2 V5.3 and is available with documentation from George Niederauer, Section Leader of the Software Development Section, Group TSA-8, at LANL. Users may become functional in creating, running, and interpreting results from TRAC without having to know Unix commands and the detailed format of any of the data files. This reduces model development and debug time and increases quality control. Integration with post-processing and visualization tools increases engineering effectiveness

1995-01-01

195

Integrated Reliability and Risk Analysis System (IRRAS) Version 2.0 user's guide  

International Nuclear Information System (INIS)

The Integrated Reliability and Risk Analysis System (IRRAS) is a state-of-the-art, microcomputer-based probabilistic risk assessment (PRA) model development and analysis tool to address key nuclear plant safety issues. IRRAS is an integrated software tool that gives the user the ability to create and analyze fault trees and accident sequences using a microcomputer. This program provides functions that range from graphical fault tree construction to cut set generation and quantification. Also provided in the system is an integrated full-screen editor for use when interfacing with remote mainframe computer systems. Version 1.0 of the IRRAS program was released in February of 1987. Since that time, many user comments and enhancements have been incorporated into the program providing a much more powerful and user-friendly system. This version has been designated IRRAS 2.0 and is the subject of this user's guide. Version 2.0 of IRRAS provides all of the same capabilities as Version 1.0 and adds a relational data base facility for managing the data, improved functionality, and improved algorithm performance. 9 refs., 292 figs., 4 tabs

1990-01-01

196

A Novel Biometric Identification Based on a User’s Input Pattern Analysis for Intelligent Mobile Devices  

Directory of Open Access Journals (Sweden)

Full Text Available As intelligent mobile devices become more popular, security threats targeting them are increasing. The resource constraints of mobile devices, such as battery life and computing power, however, make it harder to handle such threats effectively. The existing physical and behavioural biometric identification methods ? looked upon as good alternatives ? are unsuitable for the current mobile environment. This paper proposes a specially designed biometric identification method for intelligent mobile devices by analysing the user’s input patterns, such as a finger’s touch duration, pressure level and the touching width of the finger on the touch screen. We collected the input pattern data of individuals to empirically test our method. Our testing results show that this method effectively identifies users with near a 100% rate of accuracy.

Hojin Seo; Eunjin Kim; Huy Kang Kim

2012-01-01

197

Comparative analysis of seismic risk assessment methodology  

Energy Technology Data Exchange (ETDEWEB)

SRA methodologies are separated into SPSA and SMM. SPSA methodology that has been widely used for seismic risk analysis has two kinds of methodologies such as Zion method and SSMRP method. SPSA methodology is suitable to interfacing with the analysis of internal event. However, the results of SPSA have uncertainties because of uncertainties in seismic hazard analysis and subjective judgement. Zion method specially developed for commercial use is less expensive and less time consuming but more uncertain than SSMRP method, since the former performs the fragility analysis less in detail than the latter. SMM is impossible to interface with the analysis of internal event but the uncertainties that are occurred during seismic hazard analysis is reduced because of the screening using RLE (review level earthquake). Therefore, if SPSA-based SMM methodology is chosen to be developed, the results of SRA will be more reliable and it requires low costs and time. In addition, the new methodology will require the development of a new evaluating code for SRA. (Author) 26 refs., 25 figs., 16 tabs.

Park, Chang Kyoo; Kim, Tae Woon; Hwang, Mi Jung [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

1994-07-01

198

Comparative analysis of seismic risk assessment methodology  

International Nuclear Information System (INIS)

SRA methodologies are separated into SPSA and SMM. SPSA methodology that has been widely used for seismic risk analysis has two kinds of methodologies such as Zion method and SSMRP method. SPSA methodology is suitable to interfacing with the analysis of internal event. However, the results of SPSA have uncertainties because of uncertainties in seismic hazard analysis and subjective judgement. Zion method specially developed for commercial use is less expensive and less time consuming but more uncertain than SSMRP method, since the former performs the fragility analysis less in detail than the latter. SMM is impossible to interface with the analysis of internal event but the uncertainties that are occurred during seismic hazard analysis is reduced because of the screening using RLE (review level earthquake). Therefore, if SPSA-based SMM methodology is chosen to be developed, the results of SRA will be more reliable and it requires low costs and time. In addition, the new methodology will require the development of a new evaluating code for SRA. (Author) 26 refs., 25 figs., 16 tabs

1994-01-01

199

CORCON-MOD3: An integrated computer model for analysis of molten core-concrete interactions. User`s manual  

Energy Technology Data Exchange (ETDEWEB)

The CORCON-Mod3 computer code was developed to mechanistically model the important core-concrete interaction phenomena, including those phenomena relevant to the assessment of containment failure and radionuclide release. The code can be applied to a wide range of severe accident scenarios and reactor plants. The code represents the current state of the art for simulating core debris interactions with concrete. This document comprises the user`s manual and gives a brief description of the models and the assumptions and limitations in the code. Also discussed are the input parameters and the code output. Two sample problems are also given.

Bradley, D.R.; Gardner, D.R.; Brockmann, J.E.; Griffith, R.O. [Sandia National Labs., Albuquerque, NM (United States)

1993-10-01

200

Analysis of chromosomal aberrations, micronuclei and hematological disorders among workers of wireless communication instruments and cell phone (Mobile) users  

International Nuclear Information System (INIS)

This study was carried out to investigate the hazardous effect of electromagnetic radiation (EMR) such as chromosomal aberration, disturbed micronucleus formation and hematological disorders that may detected among workers of wireless communication instruments and mobile phone users. Seven individuals ( 3 males and 4 females) of a central workers in the microwave unit of the wireless station and 7 users of Mobil phone (4 males and 3 females ) were volunteered to give blood samples. Chromosomes and micronucleus were prepared for cytogenetic analysis as well as blood film for differential count. The results obtained in the microwave group indicated that, the total summation of all types of aberrations (chromosomes and chromatid aberrations) had a frequency of 6. 14% for the exposed group, whereas, the frequency in the control group amounted to 1.57%. In Mobil phone users, the total summation of all types of aberrations(chromosome and chromatid aberrations) had a frequency of 4.43% for the exposed group and 1.71% for the control group. The incidence of the total number of micronuclei in the exposed microwave group was increased 4.3 folds as compared with those of the control group The incidence of the total number of micronuclei in the exposed mobile phone group was increased 2 fold as compared with those in the control group. On the other hand, normal ranges of total white blood cells counts were determined for mobile phone users but abnormalities in the differential counts of the different types of the white blood cells such as neutropenia, eosinophilia and lymphocytosis were observed in the individuals number 1,2,3,7 in microwave group

2003-01-01

 
 
 
 
201

User's manual of VARS: a computer code system for uncertainty analysis  

International Nuclear Information System (INIS)

[en] This report describes the user's manual of the computer code system VARS for the uncertainty analysis. The VARS code system calculates uncertainties in output data of a computer code caused by propagation of uncertainties in input data using a response surface method. The VARS code system consists of a group of computer codes which have the following function: determination of cases of computer run based on an orthogonal factorial design, analysis of variance, regression analysis, and Monte Carlo calculation based on the regression equation. The uncertainties in output data are obtained in terms of a probability density function and a cumulative function. (author)

1988-01-01

202

Facts and figures: a comparative statistical analysis  

Energy Technology Data Exchange (ETDEWEB)

The six sections of this reference guide, which emphasizes OPEC's role in world energy production and consumption, provide comparative charts and graphs on trends in world primary energy, oil and gas, energy resources, OPEC flows and volumes, OPEC prices and values, and economic comparisons. The comparisons are based upon statistical analyses of 1985 production, consumption, price, and trade data. 34 figures.

1985-01-01

203

Kenya Constitutional Documents:A Comparative Analysis  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This study compares the three constitutional documents listed below that were the subject of debate in Kenya’s constitutional reform process in 2005: 1. The Constitution of Kenya (the present constitution with amendments that has been in existence since 1969); 2. The Draft Constitution of Kenya, 200...

Chitere, Preston; Chweya, Ludeki; Masya, Japhet; Tostensen, Arne; Waiganjo, Kamotho

204

Comparing Electoral Systems: A Geometric Analysis  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper constructs a game-theoretic model of elections in alternative electoral systems with three or four candidates. Each electoral system specifies how the platforms of the candidates and their scores give rise to an outcome. When geometrical analysis shows that two outcomes can compete agains...

Riviere, Anouk

205

A Cooperative Diversity Analysis of Two User Mobile Communication System with Maximal Ratio Combining  

Directory of Open Access Journals (Sweden)

Full Text Available Cooperative communication is going to play a vital role in the next generation wireless networks. In this paper we derive the expression for symbol error probability (SEP) of a two-user cooperative diversity system, where two users cooperate through the decode-and-forward (DF) relaying with binary phase-shift keying (BPSK) modulation in a flat Rayleigh fading environment. We compare the computational results obtained by the SEP expression with the simulation results using maximal-ratio combining (MRC), equal-gain combining (EGC) and selection combining (SC) techniques. Numerical results show the performance of a cooperative diversity system with maximal-ratio combining is giving better results compared to SC and EGC techniques.

Sateeshkrishna Dhuli; V. V. Mani

2013-01-01

206

Anthropometric analysis of wheelchair users: methodological factors which influence interpopulational comparison.  

UK PubMed Central (United Kingdom)

This study identified the factors existing in the methods and techniques used in the anthropometric analysis of wheelchair users which may adversely affect inter-population comparisons. Five studies of anthropometric analysis of wheelchair users were examined: Nowak (1996), Jarosz (1996), Das and Kozey (1999), Kozey and Das (2004) and Paquet and Feathers (2004). All the selected studies presented intra- and inter-population data. After having identified the methods and techniques cited, a comparison was made between the procedures used by these authors and those adopted by Barros (2007). The results indicate that inter-population comparison is valid only when there is similarity between the procedures and techniques used to collect data and the functional characteristics of the people evaluated.

Barros HO; Soares MM

2012-01-01

207

An improved method of studying user-system interaction by combining transaction log analysis and protocol analysis  

Directory of Open Access Journals (Sweden)

Full Text Available The paper reports a novel approach to studying user-system interaction that captures a complete record of the searcher's actions, the system responses and synchronised talk-aloud comments from the searcher. The data is recorded unobtrusively and is available for later analysis. The approach is set in context by a discussion of transaction logging and protocol analysis and examples of the search logging in operation are presented

Jillian R. Griffiths; R.J. Hartley; Jonathan P. Willson

2002-01-01

208

An Irish Cross-Institutional User Needs Analysis of Undergraduate Programming  

Directory of Open Access Journals (Sweden)

Full Text Available Research literature and practical experience of subject experts indicate that teaching programming to novices has proven challenging for both learner and lecturer. A number of difficulties arise when teaching novices to program. These ranges from the inadequacy of the undergraduate students’ problem-solving skills, problems with understanding programming constructs, to the complexity of the environments in which the students develop their solutions. This paper outlines a project which aims to address some of the challenges faced by novice programmers by providing them with an innovative learning tool, incorporating a set of Reusable Learning Objects (RLOs), based on sound pedagogical principles and encapsulated in a Constructivist Learning Environment (CLE). The Learning Objects will focus on the common areas of weaknesses that are determined by an Irish cross-institutional User Needs Analysis. The initial research activity was to conduct a User Needs Analysis, which was carried out in the three third level academic partner institutions and which will inform and direct the remainder of the research project. The User Needs Analysis confirmed that first year undergraduate students find programming the most challenging module they study. Programming constructs such as Arrays, Looping and Selection were shown to be the most problematic in semester one, and Methods and Polymorphism posing difficulties in semester two. Interestingly the students’ actual and perceived difficulties with the concepts were not in-line, with the students perceiving their difficulties to be less than they actually were. The students acknowledge that problem-solving abilities impacted on their performance but only 20% of students in one college admitted to thinking about their approach in designing programming solutions. The results of the User Needs Analysis directs the design and development of the RLOs and the learning tool.

Nora Brophy; Frances Murphy; Patricia Magee; Elizabeth Anne Sherry; Eileen Mary Costelloe

2006-01-01

209

A new user-friendly visual environment for breast MRI data analysis.  

UK PubMed Central (United Kingdom)

In this paper a novel, user friendly visual environment for Breast MRI Data Analysis is presented (BreDAn). Given planar MRI images before and after IV contrast medium injection, BreDAn generates kinematic graphs, color maps of signal increase and decrease and finally detects high risk breast areas. The advantage of BreDAn, which has been validated and tested successfully, is the automation of the radiodiagnostic process in an accurate and reliable manner. It can potentially facilitate radiologists' workload.

Antonios D; Dimitrios VA; Theoharis T

2013-06-01

210

Comparative elemental analysis of man's bone tissue  

International Nuclear Information System (INIS)

In order to compare two methods for definition of man's bone elemental composition and to transit from relative to absolute quantity of the elemental contents the comparative study of elemental composition of spongy man's bone has been carried out by using both negative muons and physicochemical methods. As a result, the calibration coefficients have been obtained by multiplying by which of K-series muonic X-ray relative intensities of elements one can determine the weight concentration of these elements in a bone tissue. It is shown that from the muon atomic capture viewpoint the man's spongy bone could be considered within the 7% error as a mechanical mixture of mineral and organic components. The results of this work open wide possibilities for future special studies of alive organisms elemental contents.

1980-01-01

211

Comparative analysis of Hoxa5 allelic series.  

Science.gov (United States)

Analysis of the Hoxa5(-/-) mutants has revealed the critical role of Hoxa5 in survival, specification of axial identity, and ontogeny of organs, including the respiratory tract. The presence of the selection cassette in the original Hoxa5(-/-) mutation may interfere with the interpretation of the phenotypes. To circumvent this aspect and to bypass the lethality of the Hoxa5 mutation, we have designed a conditional approach and generated Hoxa5 allelic variants. The conditional allele (Hoxa5(floxed)) behaves as a wild-type allele. In contrast, both the Hoxa5(Delta) and the Hoxa5(floxneo) alleles are characterized by the loss of the functional transcript and protein, the lethality due to lung defects and the skeletal homeotic transformations similar to those of the Hoxa5(-/-) mutants. Analysis of neighboring Hox gene expression patterns in the Hoxa5 mutants produced further confirmed that the Hoxa5 allelic variants are true null alleles. PMID:17417799

Tabariès, Sébastien; Lemieux, Margot; Aubin, Josée; Jeannotte, Lucie

2007-04-01

212

Comparative analysis of Hoxa5 allelic series.  

UK PubMed Central (United Kingdom)

Analysis of the Hoxa5(-/-) mutants has revealed the critical role of Hoxa5 in survival, specification of axial identity, and ontogeny of organs, including the respiratory tract. The presence of the selection cassette in the original Hoxa5(-/-) mutation may interfere with the interpretation of the phenotypes. To circumvent this aspect and to bypass the lethality of the Hoxa5 mutation, we have designed a conditional approach and generated Hoxa5 allelic variants. The conditional allele (Hoxa5(floxed)) behaves as a wild-type allele. In contrast, both the Hoxa5(Delta) and the Hoxa5(floxneo) alleles are characterized by the loss of the functional transcript and protein, the lethality due to lung defects and the skeletal homeotic transformations similar to those of the Hoxa5(-/-) mutants. Analysis of neighboring Hox gene expression patterns in the Hoxa5 mutants produced further confirmed that the Hoxa5 allelic variants are true null alleles.

Tabariès S; Lemieux M; Aubin J; Jeannotte L

2007-04-01

213

GEDI: a user-friendly toolbox for analysis of large-scale gene expression data  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Several mathematical and statistical methods have been proposed in the last few years to analyze microarray data. Most of those methods involve complicated formulas, and software implementations that require advanced computer programming skills. Researchers from other areas may experience difficulties when they attempting to use those methods in their research. Here we present an user-friendly toolbox which allows large-scale gene expression analysis to be carried out by biomedical researchers with limited programming skills. Results Here, we introduce an user-friendly toolbox called GEDI (Gene Expression Data Interpreter), an extensible, open-source, and freely-available tool that we believe will be useful to a wide range of laboratories, and to researchers with no background in Mathematics and Computer Science, allowing them to analyze their own data by applying both classical and advanced approaches developed and recently published by Fujita et al. Conclusion GEDI is an integrated user-friendly viewer that combines the state of the art SVR, DVAR and SVAR algorithms, previously developed by us. It facilitates the application of SVR, DVAR and SVAR, further than the mathematical formulas present in the corresponding publications, and allows one to better understand the results by means of available visualizations. Both running the statistical methods and visualizing the results are carried out within the graphical user interface, rendering these algorithms accessible to the broad community of researchers in Molecular Biology.

Fujita André; Sato João R; Ferreira Carlos E; Sogayar Mari C

2007-01-01

214

Large-System Analysis of Joint User Selection and Vector Precoding for Multiuser MIMO Downlink  

CERN Multimedia

Joint user selection (US) and vector precoding (US-VP) is proposed for multiuser multiple-input multiple-output (MU-MIMO) downlink. The main difference between joint US-VP and conventional US is that US depends on data symbols for joint US-VP, whereas conventional US is independent of data symbols. The replica method is used to analyze the performance of joint US-VP in the large-system limit, where the numbers of transmit antennas, users, and selected users tend to infinity while their ratios are kept constant. The analysis under the assumptions of replica symmetry (RS) and 1-step replica symmetry breaking (1RSB) implies that optimal data-independent US provides nothing but the same performance as random US in the large-system limit, whereas data-independent US is capacity-achieving as only the number of users tends to infinity. It is shown that joint US-VP can provide a substantial reduction of the energy penalty in the large-system limit. Consequently, joint US-VP outperforms separate US-VP in terms of the ...

Takeuchi, Keigo; Kawabata, Tsutomu

2012-01-01

215

Alice Meets Bob: A Comparative Usability Study of Wireless Device Pairing Methods for a "Two-User" Setting  

CERN Multimedia

When users want to establish wireless communication between/among their devices, the channel has to be bootstrapped first. To prevent any malicious control of or eavesdropping over the communication, the channel is desired to be authenticated and confidential. The process of setting up a secure communication channel between two previously unassociated devices is referred to as "Secure Device Pairing". When there is no prior security context, e.g., shared secrets, common key servers or public key certificates, device pairing requires user involvement into the process. The idea usually involves leveraging an auxiliary human-perceptible channel to authenticate the data exchanged over the insecure wireless channel. We observe that the focus of prior research has mostly been limited to pairing scenarios where a single user controls both the devices. In this paper, we consider more general and emerging "two-user" scenarios, where two different users establish pairing between their respective devices. Although a num...

Kumar, Arun; Uzun, Ersin

2009-01-01

216

Comparative genomic analysis of soybean flowering genes.  

UK PubMed Central (United Kingdom)

Flowering is an important agronomic trait that determines crop yield. Soybean is a major oilseed legume crop used for human and animal feed. Legumes have unique vegetative and floral complexities. Our understanding of the molecular basis of flower initiation and development in legumes is limited. Here, we address this by using a computational approach to examine flowering regulatory genes in the soybean genome in comparison to the most studied model plant, Arabidopsis. For this comparison, a genome-wide analysis of orthologue groups was performed, followed by an in silico gene expression analysis of the identified soybean flowering genes. Phylogenetic analyses of the gene families highlighted the evolutionary relationships among these candidates. Our study identified key flowering genes in soybean and indicates that the vernalisation and the ambient-temperature pathways seem to be the most variant in soybean. A comparison of the orthologue groups containing flowering genes indicated that, on average, each Arabidopsis flowering gene has 2-3 orthologous copies in soybean. Our analysis highlighted that the CDF3, VRN1, SVP, AP3 and PIF3 genes are paralogue-rich genes in soybean. Furthermore, the genome mapping of the soybean flowering genes showed that these genes are scattered randomly across the genome. A paralogue comparison indicated that the soybean genes comprising the largest orthologue group are clustered in a 1.4 Mb region on chromosome 16 of soybean. Furthermore, a comparison with the undomesticated soybean (Glycine soja) revealed that there are hundreds of SNPs that are associated with putative soybean flowering genes and that there are structural variants that may affect the genes of the light-signalling and ambient-temperature pathways in soybean. Our study provides a framework for the soybean flowering pathway and insights into the relationship and evolution of flowering genes between a short-day soybean and the long-day plant, Arabidopsis.

Jung CH; Wong CE; Singh MB; Bhalla PL

2012-01-01

217

Facts and figures: a comparative statistical analysis  

Energy Technology Data Exchange (ETDEWEB)

The facts and statistics which make up this revised edition emphasize important international energy and eocnomic trends. The information is divided into four major groupings covering (1) the basic structure of world energy patterns; (2) an economic comparison of world gross national product, trade, and aid; (3) an analysis of oil-related topics and the way in which OPEC is involved in the international oil industry, both upstream and downstream; and (4) some statistics about world energy resources and their future development. Many earlier themes are updated, and new themes taken up to give a wider perspective of the real value of OPEC oil revenues, 30 references, 31 figures. (DCK)

1981-01-01

218

Comparative analysis of observer depression scales.  

UK PubMed Central (United Kingdom)

The Hamilton Depression Scale (HAMD), Bech Rafaelsen Melancholia Scale (BRMS) and Montgomery Asberg Depression Rating Scale (MADRS) are analyzed according to mean discriminatory power, internal consistency, homogeneity and transferability. The analysis was done separately in different samples of patients with depressive syndromes: a) operationally defined depressive syndrome; b) Major Depressive Disorder (RDC); c) Major Depressive Disorder, endogenous type (RDC). BRMS and MADRS were superior to HAMD in all evaluated aspects. Further, the BRMS was superior to MADRS according to the criteria of homogeneity and transferability.

Maier W; Philipp M

1985-09-01

219

Comparative analysis of life insurance market  

Directory of Open Access Journals (Sweden)

Full Text Available The article deals with the comprehensive analysis of statistic insight into development of the world and regional life insurance markets on the basis of macroeconomic indicators. The author located domestic life insurance market on the global scale, analyzed its development and suggested the methods to calculate the marketing life insurance index. There was also approbated the mentioned methods on database of 77 countries all over the world. The author also defined the national rating on the basis of marketing life insurance index.

Malynych, Anna Mykolayivna

2011-01-01

220

Quantitative analysis of comparative genomic hybridization.  

UK PubMed Central (United Kingdom)

Comparative genomic hybridization (CGH) is a new molecular cytogenetic method for the detection of chromosomal imbalances. Following cohybridization of DNA prepared from a sample to be studied and control DNA to normal metaphase spreads, probes are detected via different fluorochromes. The ratio of the test and control fluorescence intensities along a chromosome reflects the relative copy number of segments of a chromosome in the test genome. Quantitative evaluation of CGH experiments is required for the determination of low copy changes, e.g., monosomy or trisomy, and for the definition of the breakpoints involved in unbalanced rearrangements. In this study, a program for quantitation of CGH preparations is presented. This program is based on the extraction of the fluorescence ratio profile along each chromosome, followed by averaging of individual profiles from several meta phase spreads. Objective parameters critical for quantitative evaluations were tested, and the criteria for selection of suitable CGH preparations are described. The granularity of the chromosome painting and the regional inhomogeneity of fluorescence intensities in metaphase spreads proved to be crucial parameters. The coefficient of variation of the ratio value for chromosomes in balanced state (CVBS) provides a general quality criterion for CGH experiments. Different cutoff levels (thresholds) of average fluorescence ratio values were compared for their specificity and sensitivity with regard to the detection of chromosomal imbalances.

du Manoir S; Schröck E; Bentz M; Speicher MR; Joos S; Ried T; Lichter P; Cremer T

1995-01-01

 
 
 
 
221

Quantitative analysis of comparative genomic hybridization.  

Science.gov (United States)

Comparative genomic hybridization (CGH) is a new molecular cytogenetic method for the detection of chromosomal imbalances. Following cohybridization of DNA prepared from a sample to be studied and control DNA to normal metaphase spreads, probes are detected via different fluorochromes. The ratio of the test and control fluorescence intensities along a chromosome reflects the relative copy number of segments of a chromosome in the test genome. Quantitative evaluation of CGH experiments is required for the determination of low copy changes, e.g., monosomy or trisomy, and for the definition of the breakpoints involved in unbalanced rearrangements. In this study, a program for quantitation of CGH preparations is presented. This program is based on the extraction of the fluorescence ratio profile along each chromosome, followed by averaging of individual profiles from several meta phase spreads. Objective parameters critical for quantitative evaluations were tested, and the criteria for selection of suitable CGH preparations are described. The granularity of the chromosome painting and the regional inhomogeneity of fluorescence intensities in metaphase spreads proved to be crucial parameters. The coefficient of variation of the ratio value for chromosomes in balanced state (CVBS) provides a general quality criterion for CGH experiments. Different cutoff levels (thresholds) of average fluorescence ratio values were compared for their specificity and sensitivity with regard to the detection of chromosomal imbalances. PMID:7705182

du Manoir, S; Schröck, E; Bentz, M; Speicher, M R; Joos, S; Ried, T; Lichter, P; Cremer, T

1995-01-01

222

Quantitative analysis of comparative genomic hybridization  

Energy Technology Data Exchange (ETDEWEB)

Comparative genomic hybridization (CGH) is a new molecular cytogenetic method for the detection of chromosomal imbalances. Following cohybridization of DNA prepared from a sample to be studied and control DNA to normal metaphase spreads, probes are detected via different fluorochromes. The ratio of the test and control fluorescence intensities along a chromosome reflects the relative copy number of segments of a chromosome in the test genome. Quantitative evaluation of CGH experiments is required for the determination of low copy changes, e.g., monosomy or trisomy, and for the definition of the breakpoints involved in unbalanced rearrangements. In this study, a program for quantitation of CGH preparations is presented. This program is based on the extraction of the fluorescence ratio profile along each chromosome, followed by averaging of individual profiles from several metaphase spreads. Objective parameters critical for quantitative evaluations were tested, and the criteria for selection of suitable CGH preparations are described. The granularity of the chromosome painting and the regional inhomogeneity of fluorescence intensities in metaphase spreads proved to be crucial parameters. The coefficient of variation of the ratio value for chromosomes in balanced state (CVBS) provides a general quality criterion for CGH experiments. Different cutoff levels (thresholds) of average fluorescence ratio values were compared for their specificity and sensitivity with regard to the detection of chromosomal imbalances. 27 refs., 15 figs., 1 tab.

Manoir, S. du; Bentz, M.; Joos, S. [Abteilung Organisation komplexer Genome, Heidelberg (Germany)]|[Institut fuer Humangenetik, Heidelberg (Germany)] [and others

1995-01-01

223

The Constant Comparative Method of Qualitative Analysis  

Directory of Open Access Journals (Sweden)

Full Text Available Currently, the general approaches to the analysis of qualitative data are these:1.) If the analyst wishes to convert qualitative data into crudely quantifiable form so that he can provisionally test a hypothesis, he codes the data first and then analyzes it. He makes an effort to code “all relevant data [that] can be brought to bear on a point,” and then systematically assembles, assesses and analyzes these data in a fashion that will “constitute proof for a given proposition.”i2.) If the analyst wishes only to generate theoretical ideasnew categories and their properties, hypotheses and interrelated hypotheses- he cannot be confined to the practice of coding first and then analyzing the data since, in generating theory, he is constantly redesigning and reintegrating his theoretical notions as he reviews his material.ii Analysis with his purpose, but the explicit coding itself often seems an unnecessary, burdensome task. As a result, the analyst merely inspects his data for new properties of his theoretical categories, and writes memos on these properties.We wish to suggest a third approach

Barney G. Glaser, Ph.D.

2008-01-01

224

Alcohol and illegal drug use behaviors and prescription opioids use: how do nonmedical and medical users compare, and does motive to use really matter?  

UK PubMed Central (United Kingdom)

BACKGROUND/AIMS: This study compares illegal drug and alcohol use behaviors between medical and nonmedical users of prescription opioids (PO) and nonmedical users with distinct motives to use. METHOD: An ethically approved cross-sectional study (2010) was conducted on a representative sample of private university students (n = 570), using a self-filled anonymous questionnaire. RESULTS: About 25% reported using PO only medically and 15% nonmedically. The prevalence of alcohol and illegal drug use was consistently higher among nonmedical than medical PO users. Adjusting for age and gender, lifetime medical users of PO were more likely to use marijuana only (OR = 1.8, 95% CI: 1.1, 2.8), while nonmedical users were at higher odds of using marijuana, ecstasy, cocaine/crack, and alcohol problematically. Compared to nonusers, students who took PO nonmedically for nontherapeutic reasons were more likely to use various illegal drugs, but nonmedical users who took PO to relieve pain/help in sleep were only more likely to use marijuana (OR = 2.5, 95% CI: 1.1, 5.4) and alcohol (e.g. alcohol abuse; OR = 3.8, 95% CI: = 1.4, 10.1). CONCLUSION: Youth who use PO nonmedically to self-treat have a different alcohol and illegal drug-using profile than those who take it for nontherapeutic reasons.

Ghandour LA; El Sayed DS; Martins SS

2013-01-01

225

Comparative chromatin analysis of Trypanosoma congolense  

Directory of Open Access Journals (Sweden)

Full Text Available The chromatin of Trypanosoma congolense was analyzed by electron microscopy. The chromatin is organized as nucleosome filaments but does not form a 30 nm fiber. There are five groups of histones, including a histone H1-like protein, which has a molecular weight within the range of the core histones, and is extremely hydrophilic. Weak histone-histone interaction, a typical feature of trypanosoma chromatin, was found. These results are similar to those for T. cruzi and T. b. brucei, but differ significantly from those for higher eukaryotes. The results confirm the model of trypanosome chromatin, and support the theory of their early separation from the other eukaryotes during the evolution. T. congolensis is an excellent model for chromatin research on trypanosomes, because it is easy to cultivate and its chromatin has, a relatively high stability, compared to that of other trypanosomes.

Wolfram Schlimme; Markus Burri; Bruno Betschart; Hermann Hecker

1994-01-01

226

Resilience and electricity systems: A comparative analysis  

International Nuclear Information System (INIS)

[en] Electricity systems have generally evolved based on the natural resources available locally. Few metrics exist to compare the security of electricity supply of different countries despite the increasing likelihood of potential shocks to the power system like energy price increases and carbon price regulation. This paper seeks to calculate a robust measure of national power system resilience by analysing each step in the process of transformation from raw energy to consumed electricity. Countries with sizeable deposits of mineral resources are used for comparison because of the need for electricity-intensive metals processing. We find that shifts in electricity-intensive industry can be predicted based on countries' power system resilience. - Highlights: ? We establish a resilience index measure for major electricity systems. ? We examine a range of OECD and developing nations electricity systems and their ability to cope with shocks. ? Robustness measures are established to show resilience of electricity systems.

2012-01-01

227

[Comparative analysis of mice models for preeclampsia].  

UK PubMed Central (United Kingdom)

Preeclampsia is a multifactorial disease of pregnancy. It is a major cause of maternal and perinatal mortality and morbidity and is defined by the de novo onset of hypertension and proteinuria after the 20th week of pregnancy. This pathology manifests during the early stages of pregnancy, making it hard to predict and very difficult to study in humans (presymptomatic phase and lack of tissues access). Animal models are therefore necessary to study the physiopathology of preeclampsia, however, since this pathology is specifically human, there are no spontaneous models. Animal models have thus been engineered. In this review, the models obtained in mice are described and compared. These models are essential for the development of new therapeutic strategies.

Doridot L; Méhats C; Vaiman D

2012-06-01

228

[Comparative analysis of mice models for preeclampsia].  

Science.gov (United States)

Preeclampsia is a multifactorial disease of pregnancy. It is a major cause of maternal and perinatal mortality and morbidity and is defined by the de novo onset of hypertension and proteinuria after the 20th week of pregnancy. This pathology manifests during the early stages of pregnancy, making it hard to predict and very difficult to study in humans (presymptomatic phase and lack of tissues access). Animal models are therefore necessary to study the physiopathology of preeclampsia, however, since this pathology is specifically human, there are no spontaneous models. Animal models have thus been engineered. In this review, the models obtained in mice are described and compared. These models are essential for the development of new therapeutic strategies. PMID:22626651

Doridot, L; Méhats, C; Vaiman, D

2012-05-08

229

Comparative Analysis of Various Cryptographic Algorithms  

Directory of Open Access Journals (Sweden)

Full Text Available Does increased security provide comfort to fearful people? Or does security provide some very basic protections that we are inexperienced to believe that we don't need? During this time when the Internet provides essential communication between millions of people and is being increasingly used as a tool for commerce, trading, research & banking, security becomes a tremendously important issue to deal with. There are many aspects to security and many applications, ranging from secure commerce and payments to private communications and protecting passwords. This paper has two major purposes. The first is to define some of the terms and concepts behind basic cryptographic methods, and second is to offer a way to compare the myriad cryptographic algorithms in use today.

Satish Kumar

2012-01-01

230

Comparative chromatin analysis of Trypanosoma congolense.  

UK PubMed Central (United Kingdom)

The chromatin of Trypanosoma congolense was analyzed by electron microscopy. The chromatin is organized as nucleosome filaments but does not form a 30 nm fiber. There are five groups of histones, including a histone H1-like protein, which as a molecular weight within the range of the core histones, and is extremely hydrophilic. Weak histone-histone interaction, a typical feature of trypanosome chromatin, was found. These results are similar to those for T. cruzi and T. b. brucei, but differ significantly from those for higher eukaryotes. The results confirm the model of trypanosome chromatin, and support the theory of their early separation from the other eukaryotes during the evolution. T. congolensis is an excellent model for chromatin research on trypanosomes, because it is easy to cultivate and its chromatin has, a relatively high stability, compared to that of other trypanosomes.

Schlimme W; Burri M; Betschart B; Hecker H

1994-04-01

231

Comparative analysis of some search engines  

Directory of Open Access Journals (Sweden)

Full Text Available We compared the information retrieval performances of some popular search engines (namely, Google, Yahoo, AlltheWeb, Gigablast, Zworks and AltaVista and Bing/MSN) in response to a list of ten queries, varying in complexity. These queries were run on each search engine and the precision and response time of the retrieved results were recorded. The first ten documents on each retrieval output were evaluated as being ‘relevant’ or ‘non-relevant’ for evaluation of the search engine’s precision. To evaluate response time, normalised recall ratios were calculated at various cut-off points for each query and search engine. This study shows that Google appears to be the best search engine in terms of both average precision (70%) and average response time (2 s). Gigablast and AlltheWeb performed the worst overall in this study.

Joseph Edosomwan; Taiwo O. Edosomwan

2010-01-01

232

A Comparative Analysis of Selection Scheme  

Directory of Open Access Journals (Sweden)

Full Text Available Selection scheme is an important part of geneticalgorithms, which chooses a chromosome from the currentgeneration’s population for inclusion in the next generation’spopulation, is the main subject of this paper. A selection operatorselects the best chromosome using fitness function. Selectionscheme is used to improve chances of the survivals of the fittestindividuals. This paper recommends a number of selection(reproduction) methods most commonly used in geneticalgorithms and analyzes them. These methods are: roulettewheel, rank selection, Boltzmann selection, tournamentselection, steady state selection and elitism are compared on thebasis of performance and takeover time computations .theanalysis provides approximate or exact solutions. The paperrecommends practical application and analyses a number ofways for more detailed analytical investigation of selectionschemes.

Sonali Gandhi; Deeba Khan; Vikram Singh Solanki

2012-01-01

233

Community detection algorithms: a comparative analysis  

CERN Document Server

Uncovering the community structure exhibited by real networks is a crucial step towards an understanding of complex systems that goes beyond the local organization of their constituents. Many algorithms have been proposed so far, but none of them has been subjected to strict tests to evaluate their performance. Most of the sporadic tests performed so far involved small networks with known community structure and/or artificial graphs with a simplified structure, which is very uncommon in real systems. Here we test several methods against a recently introduced class of benchmark graphs, with heterogeneous distributions of degree and community size. The methods are also tested against the benchmark by Girvan and Newman and on random graphs. As a result of our analysis, three recent algorithms introduced by Rosvall and Bergstrom, Blondel et al. and Ronhovde and Nussinov, respectively, have an excellent performance, with the additional advantage of low computational complexity, which enables one to analyze large s...

Lancichinetti, Andrea

2009-01-01

234

Comparative study of the blinking time between young adult and adult video display terminal users in indoor environment.  

UK PubMed Central (United Kingdom)

OBJECTIVE: Investigate the average blinking time in conversation and in Video Display Terminal use of young adults and adults in the presbyopic age group. METHODS: A transversal analytical study in a readily accessible sample consisting of Volkswagen do Brasil - Curitiba, Paraná employees was performed. The cohort group consisted of 108 subjects divided into two age groups: Group 1, the young adult group (age range 20-39): 77 employees, mean age of 30.09 +/- 5.09; Group 2, the presbyopic adult group, (age range 40-53): 31 employees, mean age of 44.17 +/- 3. Subjects under 18 years of age, with a history of ocular disorders, contact lens wearers and computer non-users were excluded. The subjects had their faces filmed for 10 minutes in conversation and VDT reading. Student's t-test was used and the statistical significance level was 95%. RESULTS: The average time between blinks in Group 1 for conversation and VDT reading was 5.16 +/- 1.83 and 10.42 +/- 7.78 seconds, respectively; in Group 2. 4,9 +/- 1.49 and 10.46 +/- 5.54 seconds. In both age groups, the time between blinks in VDT reading situations was higher (p<0.0001). There was no statistically meaningful difference for conversation and VDT reading situations when the two studied age groups were compared (p>0.05). CONCLUSION: There was an increase in the blinking time between young adults and the presbyopic group in VDT use situations when compared with reading situations. The difference in the blinking frequency between young adults and the presbyopic group in VDT use and reading situations was not statistically significant.

Schaefer TM; Schaefer AR; Abib FC; José NK

2009-09-01

235

A randomized, comparative safety study of a prefilled plastic and user-filled paper applicator with candidate microbicide tenofovir 1% gel.  

UK PubMed Central (United Kingdom)

BACKGROUND: A bridging study was performed to compare the safety, dose delivery, and acceptability of a prefilled plastic and user-filled paper applicator to assess whether a low-cost, user-filled, paper applicator could serve as a delivery option for tenofovir (TFV) 1% vaginal microbicide gel. METHODS: The study used a randomized crossover design with 25 healthy women randomized to begin with the prefilled or user-filled applicator. Within each study arm, participants delivered two 4.0-mL doses of TFV 1% gel vaginally for 7 days, with one dose delivered at the clinic each morning and a second dose delivered at home each evening. To assess the primary objective, applicator safety, colposcopy examinations were performed at 2 time points in each study arm. RESULTS: There were no colposcopic findings or adverse events attributable to either applicator. One case of vulvovaginal candidiasis was considered possibly related to gel use. On average, the user-filled applicator delivered 96% of the target dose, with 85% of doses falling within ± 10% of the average dose volume. Participants found both applicators comparable for ease of use, insertion, and dispensing gel, with 60% of participants preferring the user-filled applicator. CONCLUSIONS: This study suggests that both applicators are safe, and most women delivered TFV with the user-filled applicator as directed. Participants found both applicators acceptable, with a slight majority preferring the user-filled applicator. Incorporating a low-cost, user-filled, paper applicator to deliver TFV could help reduce costs and improve access to TFV 1% gel, especially in resource-limited settings heavily impacted by HIV.

Cohen JA; Brache V; Foster J; Cochon L; Callahan M; Schwartz J

2013-06-01

236

Comparative analysis of mobilizable genomic islands.  

UK PubMed Central (United Kingdom)

Mobilizable genomic islands (MGIs) are small genomic islands of less than 35 kbp containing an integrase gene and a sequence that resembles the origin of transfer (oriT) of an integrating conjugative element (ICE). MGIs have been shown to site-specifically integrate and excise from the chromosome of bacterial hosts and hijack the conjugative machinery of a coresident ICE to disseminate. To date, MGIs have been described in three strains belonging to three different Vibrio species. In this study, we report the discovery of 11 additional putative MGIs found in various species of Vibrio, Alteromonas, Pseudoalteromonas, and Methylophaga. We designed an MGI capture system that allowed us to relocate chromosomal MGIs onto a low-copy-number plasmid and facilitate their isolation and sequencing. Comparative genomics and phylogenetic analyses of these mobile genetic elements revealed their mosaic structure and their evolution through recombination and acquisition of exogenous DNA. MGIs were found to belong to a larger family of genomic islands (GIs) sharing a similar integrase gene and often integrated into the same integration site yet exhibiting a different mechanism of regulation of excision and mobilization. We found that MGIs can excise only when an ICE of the SXT/R391 family is coresident in the same cell, while GIs still excise regardless.

Daccord A; Ceccarelli D; Rodrigue S; Burrus V

2013-02-01

237

Comparative Analysis of Various Scheduling Algorithms  

Directory of Open Access Journals (Sweden)

Full Text Available Scheduling is the technique used for controlling the order of the job which is to be performed by a CPU of a computer. The motive of scheduling is to engage the CPU at its maximum capacity and no process shall wait for longer time and to finish the entire task in minimum possible time. In this paper, we discuss various types of Scheduling algorithms and Compare their performance on terms of throughput and waiting time. First of them is First Come First Served (FCFS) which is a non-preemptive and the simplest scheduling. FCFS is good for long job. Second is Shortest Job First (SJF) scheduling which selects that job first which has least processing time i.e. the processing demanding the less CPU time is executed first. Next is Round Robin (RR) scheduling, it removes the drawbacks of FCFS by preempting running jobs periodically. But if the length of time quantum is too short then more time will waste in context switching. Last one is Priority Based scheduling where each process is assigned a priority (preference) to create the order of execution.

Lalit Kishor, Dinesh Goyal

2013-01-01

238

Gender and work values: a comparative analysis.  

Science.gov (United States)

The results of recent investigations on work values suggest that the contradictory findings in regard to gender differences may be rooted in variations in the underlying structure of the work-values domain. In the present study a definitional framework for work values was proposed and tested. Smallest space analysis (SSA; Guttman, 1968) was performed on the ratings of 24 work-value items by samples of men and women from Hungary, Israel, and the Netherlands. A double-ordered conceptual system, a radex structure, was obtained in each of the samples, reflecting two hypothesized facets: modality of outcome (cognitive, affective, and instrumental) and type of system performance contingency. Essentially the same structure was obtained for women and men. However, women ranked affective outcomes as well as some of the instrumental and cognitive values higher than men did, whereas men ranked some other cognitive (influence, independence, responsibility) and instrumental (pay) items higher than women did. Personal growth and use of abilities were ranked higher by men in some samples and by women in others. PMID:8201817

Elizur, D

1994-04-01

239

Gender and work values: a comparative analysis.  

UK PubMed Central (United Kingdom)

The results of recent investigations on work values suggest that the contradictory findings in regard to gender differences may be rooted in variations in the underlying structure of the work-values domain. In the present study a definitional framework for work values was proposed and tested. Smallest space analysis (SSA; Guttman, 1968) was performed on the ratings of 24 work-value items by samples of men and women from Hungary, Israel, and the Netherlands. A double-ordered conceptual system, a radex structure, was obtained in each of the samples, reflecting two hypothesized facets: modality of outcome (cognitive, affective, and instrumental) and type of system performance contingency. Essentially the same structure was obtained for women and men. However, women ranked affective outcomes as well as some of the instrumental and cognitive values higher than men did, whereas men ranked some other cognitive (influence, independence, responsibility) and instrumental (pay) items higher than women did. Personal growth and use of abilities were ranked higher by men in some samples and by women in others.

Elizur D

1994-04-01

240

An Exploratory Analysis of the Impact of Named Ranges on the Debugging Performance of Novice Users  

CERN Document Server

This paper describes an exploratory empirical study of the effect of named ranges on spreadsheet debugging performance. Named ranges are advocated in both academia and industry, yet no experimental evidence has been cited to back up these recommendations. This paper describes an exploratory experiment involving 21 participants that assesses the performance of novices debugging a spreadsheet containing named ranges. The results are compared with the performance of a different set of novices debugging the same spreadsheet without named ranges. The findings suggest that novice users debug on average significantly fewer errors if the spreadsheet contains named ranges. The purpose of the investigative study is to derive a detailed and coherent set of research questions regarding the impact of range names on the debugging performance and behaviour of spreadsheet users. These will be answered through future controlled experiments.

McKeever, Ruth; Bishop, Brian

2009-01-01

 
 
 
 
241

Discovering Latent Patterns from the Analysis of User-Curated Movie Lists  

CERN Multimedia

User content curation is becoming an important source of preference data, as well as providing information regarding the items being curated. One popular approach involves the creation of lists. On Twitter, these lists might contain accounts relevant to a particular topic, whereas on a community site such as the Internet Movie Database (IMDb), this might take the form of lists of movies sharing common characteristics. While list curation involves substantial combined effort on the part of users, researchers have rarely looked at mining the outputs of this kind of crowdsourcing activity. Here we study a large collection of movie lists from IMDb. We apply network analysis methods to a graph that reflects the degree to which pairs of movies are "co-listed", that is, assigned to the same lists. This allows us to uncover a more nuanced grouping of movies that goes beyond categorisation schemes based on attributes such as genre or director.

Greene, Derek

2013-01-01

242

Comparative and demographic analysis of orangutan genomes  

Science.gov (United States)

“Orangutan” is derived from the Malay term “man of the forest” and aptly describes the Southeast Asian great apes native to Sumatra and Borneo. The orangutan species, Pongo abelii (Sumatran) and Pongo pygmaeus (Bornean), are the most phylogenetically distant great apes from humans, thereby providing an informative perspective on hominid evolution. Here we present a Sumatran orangutan draft genome assembly and short read sequence data from five Sumatran and five Bornean orangutan genomes. Our analyses reveal that, compared to other primates, the orangutan genome has many unique features. Structural evolution of the orangutan genome has proceeded much more slowly than other great apes, evidenced by fewer rearrangements, less segmental duplication, a lower rate of gene family turnover and surprisingly quiescent Alu repeats, which have played a major role in restructuring other primate genomes. We also describe the first primate polymorphic neocentromere, found in both Pongo species, emphasizing the gradual evolution of orangutan genome structure. Orangutans have extremely low energy usage for a eutherian mammal1, far lower than their hominid relatives. Adding their genome to the repertoire of sequenced primates illuminates new signals of positive selection in several pathways including glycolipid metabolism. From the population perspective, both Pongo species are deeply diverse; however, Sumatran individuals possess greater diversity than their Bornean counterparts, and more species-specific variation. Our estimate of Bornean/Sumatran speciation time, 400k years ago (ya), is more recent than most previous studies and underscores the complexity of the orangutan speciation process. Despite a smaller modern census population size, the Sumatran effective population size (Ne) expanded exponentially relative to the ancestral Ne after the split, while Bornean Ne declined over the same period. Overall, the resources and analyses presented here offer new opportunities in evolutionary genomics, insights into hominid biology, and an extensive database of variation for conservation efforts.

Locke, Devin P.; Hillier, LaDeana W.; Warren, Wesley C.; Worley, Kim C.; Nazareth, Lynne V.; Muzny, Donna M.; Yang, Shiaw-Pyng; Wang, Zhengyuan; Chinwalla, Asif T.; Minx, Pat; Mitreva, Makedonka; Cook, Lisa; Delehaunty, Kim D.; Fronick, Catrina; Schmidt, Heather; Fulton, Lucinda A.; Fulton, Robert S.; Nelson, Joanne O.; Magrini, Vincent; Pohl, Craig; Graves, Tina A.; Markovic, Chris; Cree, Andy; Dinh, Huyen H.; Hume, Jennifer; Kovar, Christie L.; Fowler, Gerald R.; Lunter, Gerton; Meader, Stephen; Heger, Andreas; Ponting, Chris P.; Marques-Bonet, Tomas; Alkan, Can; Chen, Lin; Cheng, Ze; Kidd, Jeffrey M.; Eichler, Evan E.; White, Simon; Searle, Stephen; Vilella, Albert J.; Chen, Yuan; Flicek, Paul; Ma, Jian; Raney, Brian; Suh, Bernard; Burhans, Richard; Herrero, Javier; Haussler, David; Faria, Rui; Fernando, Olga; Darre, Fleur; Farre, Domenec; Gazave, Elodie; Oliva, Meritxell; Navarro, Arcadi; Roberto, Roberta; Capozzi, Oronzo; Archidiacono, Nicoletta; Valle, Giuliano Della; Purgato, Stefania; Rocchi, Mariano; Konkel, Miriam K.; Walker, Jerilyn A.; Ullmer, Brygg; Batzer, Mark A.; Smit, Arian F. A.; Hubley, Robert; Casola, Claudio; Schrider, Daniel R.; Hahn, Matthew W.; Quesada, Victor; Puente, Xose S.; Ordonez, Gonzalo R.; Lopez-Otin, Carlos; Vinar, Tomas; Brejova, Brona; Ratan, Aakrosh; Harris, Robert S.; Miller, Webb; Kosiol, Carolin; Lawson, Heather A.; Taliwal, Vikas; Martins, Andre L.; Siepel, Adam; RoyChoudhury, Arindam; Ma, Xin; Degenhardt, Jeremiah; Bustamante, Carlos D.; Gutenkunst, Ryan N.; Mailund, Thomas; Dutheil, Julien Y.; Hobolth, Asger; Schierup, Mikkel H.; Chemnick, Leona; Ryder, Oliver A.; Yoshinaga, Yuko; de Jong, Pieter J.; Weinstock, George M.; Rogers, Jeffrey; Mardis, Elaine R.; Gibbs, Richard A.; Wilson, Richard K.

2011-01-01

243

Alkahest NuclearBLAST : a user-friendly BLAST management and analysis system  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background - Sequencing of EST and BAC end datasets is no longer limited to large research groups. Drops in per-base pricing have made high throughput sequencing accessible to individual investigators. However, there are few options available which provide a free and user-friendly solution to the BLAST result storage and data mining needs of biologists. Results - Here we describe NuclearBLAST, a batch BLAST analysis, storage and management system designed for the biologist. It is a wrapper for NCBI BLAST which provides a user-friendly web interface which includes a request wizard and the ability to view and mine the results. All BLAST results are stored in a MySQL database which allows for more advanced data-mining through supplied command-line utilities or direct database access. NuclearBLAST can be installed on a single machine or clustered amongst a number of machines to improve analysis throughput. NuclearBLAST provides a platform which eases data-mining of multiple BLAST results. With the supplied scripts, the program can export data into a spreadsheet-friendly format, automatically assign Gene Ontology terms to sequences and provide bi-directional best hits between two datasets. Users with SQL experience can use the database to ask even more complex questions and extract any subset of data they require. Conclusion - This tool provides a user-friendly interface for requesting, viewing and mining of BLAST results which makes the management and data-mining of large sets of BLAST analyses tractable to biologists.

Diener Stephen E; Houfek Thomas D; Kalat Sam E; Windham DE; Burke Mark; Opperman Charles; Dean Ralph A

2005-01-01

244

GUARDD: user-friendly MATLAB software for rigorous analysis of CPMG RD NMR data  

Energy Technology Data Exchange (ETDEWEB)

Molecular dynamics are essential for life, and nuclear magnetic resonance (NMR) spectroscopy has been used extensively to characterize these phenomena since the 1950s. For the past 15 years, the Carr-Purcell Meiboom-Gill relaxation dispersion (CPMG RD) NMR experiment has afforded advanced NMR labs access to kinetic, thermodynamic, and structural details of protein and RNA dynamics in the crucial {mu}s-ms time window. However, analysis of RD data is challenging because datasets are often large and require many non-linear fitting parameters, thereby confounding assessment of accuracy. Moreover, novice CPMG experimentalists face an additional barrier because current software options lack an intuitive user interface and extensive documentation. Hence, we present the open-source software package GUARDD (Graphical User-friendly Analysis of Relaxation Dispersion Data), which is designed to organize, automate, and enhance the analytical procedures which operate on CPMG RD data (http://code.google.com/p/guardd/http://code.google.com/p/guardd/). This MATLAB-based program includes a graphical user interface, permits global fitting to multi-field, multi-temperature, multi-coherence data, and implements {chi}{sup 2}-mapping procedures, via grid-search and Monte Carlo methods, to enhance and assess fitting accuracy. The presentation features allow users to seamlessly traverse the large amount of results, and the RD Simulator feature can help design future experiments as well as serve as a teaching tool for those unfamiliar with RD phenomena. Based on these innovative features, we expect that GUARDD will fill a well-defined gap in service of the RD NMR community.

Kleckner, Ian R., E-mail: ian.kleckner@gmail.com [Biophysics Program, Ohio State University (United States); Foster, Mark P., E-mail: Foster.281@osu.edu [Ohio State University, Biochemistry Department (United States)

2012-01-15

245

Alkahest NuclearBLAST : a user-friendly BLAST management and analysis system.  

UK PubMed Central (United Kingdom)

BACKGROUND: Sequencing of EST and BAC end datasets is no longer limited to large research groups. Drops in per-base pricing have made high throughput sequencing accessible to individual investigators. However, there are few options available which provide a free and user-friendly solution to the BLAST result storage and data mining needs of biologists. RESULTS: Here we describe NuclearBLAST, a batch BLAST analysis, storage and management system designed for the biologist. It is a wrapper for NCBI BLAST which provides a user-friendly web interface which includes a request wizard and the ability to view and mine the results. All BLAST results are stored in a MySQL database which allows for more advanced data-mining through supplied command-line utilities or direct database access. NuclearBLAST can be installed on a single machine or clustered amongst a number of machines to improve analysis throughput. NuclearBLAST provides a platform which eases data-mining of multiple BLAST results. With the supplied scripts, the program can export data into a spreadsheet-friendly format, automatically assign Gene Ontology terms to sequences and provide bi-directional best hits between two datasets. Users with SQL experience can use the database to ask even more complex questions and extract any subset of data they require. CONCLUSION: This tool provides a user-friendly interface for requesting, viewing and mining of BLAST results which makes the management and data-mining of large sets of BLAST analyses tractable to biologists.

Diener SE; Houfek TD; Kalat SE; Windham DE; Burke M; Opperman C; Dean RA

2005-01-01

246

Allograft materials in phalloplasty: a comparative analysis.  

UK PubMed Central (United Kingdom)

INTRODUCTION: Allograft use has increased recently with the rising use of allograft materials in breast surgery. There are few data that compare the performance of the various allograft materials in this application, despite marketing efforts by the manufacturers to present one allograft material as superior to another. Phalloplasty is a procedure that uses allografts for penis girth augmentation. Preparation of these grafts differs with each manufacturer. We report our experience with 3 different types of allografts for this procedure. This allows for the comparison of these materials in their performance with a single model. METHODS: Forty-seven patients who underwent penis girth enhancement with allograft material were reviewed. All patients underwent circumferential grafting to the shaft of the penis at the level of Buck's fascia. Graft materials included AlloDerm (n = 9), Belladerm (n = 20), and Repriza (n = 21). Charts were reviewed for material type, presence and type of infection, wound exposure, and graft loss with attention to the type of allograft material that was used. RESULTS: Follow-up ranged from 1 to 120 months with an average of 11.25 months. Infection, defined as an open wound with graft exposure, occurred in 20 (42%) of 47 patients. Of these, graft exposure only occurred in 17 (36%) patients, whereas 3 (6%) patients sustained total graft loss. Graft exposure or loss occurred in 3 patients who had AlloDerm, 9 patients with Belladerm, and 8 patients with Repriza. No patients with AlloDerm sustained graft loss, whereas 2 patients with Belladerm and 1 patient with Repriza sustained graft loss. There were no statistical differences among these graft types with regard to infection or graft loss. CONCLUSIONS: Three different brands of allograft material were used in 1 surgical procedure and followed up for their performance with regard to exposure and infection. In this model, there is no difference in the rate of infection in these materials despite their different methods of preparation. Implications of this fact are discussed in the approach surgeons should consider when using these materials.

Solomon MP; Komlo C; Defrain M

2013-09-01

247

Analysis of Comparative Advantage and Agricultural Trade in Mozambique.  

Science.gov (United States)

Contents: Foreword; Executive Summary; Glossary of Acronyms and Abbreviations; Introduction; Agricultural Production and Trade; Analytical Framework; Empirical Framework and Data Analysis; Results of Research and Analysis of Comparative Advantage and Agri...

F. G. Mucavele

2000-01-01

248

GRIZ: Finite element analysis results visualization for unstructured grids. User manual  

Energy Technology Data Exchange (ETDEWEB)

GRIZ supports interactive visualization of finite element analysis results on unstructured grids. GRIZ is a general-purpose post-processing application which is designed to work with a variety of an analysis codes. Currently, GRIZ is capable of calculating and displaying derived variables for the DYNA3D, NIKE3D and TOPAZ3D analysis codes. GRIZ reads in data files in the ``MDG plotfile`` format. GRIZ provides support for modern 3D visualization techniques such as isosurface display, cutting planes and display of vector data. GRIZ also incorporates the ability to animate data over time and to store animation frames to a video disk. GRIZ is designed to utilize the capabilities of modern graphics workstations which provide hardware support for 3D graphics, thereby giving the user as much interactive performance as possible. This should make it easier for analysts to explore and interrogate their analysis results.

Dovey, D.J.; Spelce, T.E.

1993-10-01

249

Risk Analysis and Decision-Making Software Package (1997 Version) User Manual  

Energy Technology Data Exchange (ETDEWEB)

This manual provides instructions for using the U.S. Department of Energy's (DOE) risk analysis and decision making software (1997 version) developed at BDM Petroleum Technologies by BDM-Oklahoma, Inc. for DOE, under contract No. DE-AC22-94PC91OO8. This software provides petroleum producers with a simple, handy tool for exploration and production risk analysis and decision-making. It collects useful risk analysis tools in one package so that users do not have to use several programs separately. The software is simple to use, but still provides many functions. The 1997 version of the software package includes the following tools: (1) Investment risk (Gambler's ruin) analysis; (2) Monte Carlo simulation; (3) Best fit for distribution functions; (4) Sample and rank correlation; (5) Enhanced oil recovery method screening; and (6) artificial neural network. This software package is subject to change. Suggestions and comments from users are welcome and will be considered for future modifications and enhancements of the software. Please check the opening screen of the software for the current contact information. In the future, more tools will be added to this software package. This manual includes instructions on how to use the software but does not attempt to fully explain the theory and algorithms used to create it.

Chung, F.T.H.

1999-02-11

250

Atherosclerotic plaque burden in cocaine users with acute chest pain: analysis by coronary computed tomography angiography.  

UK PubMed Central (United Kingdom)

Chest pain associated with cocaine use represents an increasing problem in the emergency department (ED). Cocaine use has been linked to the acute coronary syndrome (ACS) and acute myocardial infarction (AMI). We used coronary computed tomography angiography (cCTA) to evaluate the prevalence, severity and composition of atherosclerotic lesions in cocaine users. We studied 78 patients with non-occasional cocaine use (52 men, 44 ± 7 years, 23 under the acute influence) and acute chest pain but without ACS, who had undergone cCTA in the ED. Patients were matched one-to-one by gender, race, symptoms, and risk-factors with a control cohort (n = 78; 52 men, 45 ± 6 years) not using cocaine. Each coronary segment was evaluated for the presence and composition (calcified, non-calcified, partially calcified) of atherosclerotic plaque and for stenosis. The prevalence of coronary stenosis was not significantly different between patients with and without cocaine use (13% versus 5%, P > 0.05). However, cocaine users on average had significantly more atherosclerotic plaques (0.44 ± 0.88 versus 0.29 ± 0.83, P < 0.05) and a tendency towards more calcified (0.64 ± 1.23 versus 0.55 ± 1.22, P > 0.05) and non-calcified plaques (0.26 ± 0.63 versus 0.17 ± 0.57, P > 0.05), yet not reaching statistical significance. Furthermore, cocaine users had significantly more partially calcified plaques (0.41 ± 0.61 versus 0.17 ± 0.41, P < 0.05) and higher partially calcified plaque volume (59.7 ± 33.3 mm(3) versus 25.6 ± 12.6 mm(3), P < 0.05). Thus, cocaine users tend to have more pronounced coronary atherosclerosis compared to patients without cocaine use at the time of presentation with acute chest pain.

Ebersberger U; Sudarski S; Schoepf UJ; Bamberg F; Tricarico F; Apfaltrer P; Blanke P; Schindler A; Makowski MR; Headden GF; Leber AW; Hoffmann E; Vliegenthart R

2013-08-01

251

User Centered Design as a Framework for Applying Conversation Analysis in Hearing Aid Consultations  

DEFF Research Database (Denmark)

Recurrent issues in applying CA results to change in institutional practices concern the degree to which the CA researcher is involved and what aspects of the change process CA researchers is involved in. This paper presents a methodology from innovation studies called User Centered Design (Buur and Bagger, 1999) and, more recently, Participatory Innovation (Buur and Matthews, 2008) which is uniquely compatible with conversation analysis. Designers following this approach study how a ‘user’ of goods or services interacts with products and other interaction partners in order to derive ideas for innovation. Although this methodological convergence of disciplines is rooted in different traditions, it augurs well for successful cooperation. This paper reports on such a collaboration carried out within a federally funded research center for innovation. We present principles of the interdisciplinary collaboration, as well as successes and pitfalls. In particular we focus on the role of conversation analysistsboth from the perspective of the designers and the conversation analysts. To illustrate this, we have selected a project on hearing aid fitting. To understand the perspective of the users (the person with hearing loss and the hearing aid fitter is imperative because the compliance rate for hearing aid use is staggeringly low. One of the barriers of hearing aid use lies in problematic encounters between the person with hearing loss and audiologists. Buur, J and Matthews, B. (2008) ‘Participatory Innovation’ International Journal of Innovation Management. vol. 12, no. 3, pp. 255-273. Buur, J. and Bagger, K. (1999). ‘Replacing usability testing with user dialogue’ Communications of the ACM 42(5), pp. 63-66.

Egbert, Maria; Matthews, Ben

2011-01-01

252

European computing curricula: a guide and comparative analysis.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper presents a guide to, and comparative analysis of, computing curricula in the European Community (EC). The guide consists of a detailed account of the computing curricula taken from selected university institutions in each country of the EC. A comparative analysis is given which examines: ...

Finkelstein, A.

253

LISA package user guide. Part III: SPOP (Statistical POst Processor). Uncertainty and sensitivity analysis for model output. Program description and user guide  

International Nuclear Information System (INIS)

This manual is subdivided into three parts. In the third part, the SPOP (Statistical POst Processor) code is described as a tool to perform Uncertainty and Sensitivity Analyses on the output of a User implemented model. It has been developed at the joint Research Centre of Ispra as part of the LISA package. SPOP performs Sensitivity Analysis (SA) and Uncertainty Analysis (UA) on a sample output from a Monte Carlo simulation. The sample is generated by the User and contains values of the output variable (in the form of a time series) and values of the input variables for a set of different simulations (runs), which are realised by varying the model input parameters. The User may generate the Monte Carlo sample with the PREP pre-processor, another module of the LISA package. The SPOP code is completely written in FORTRAN 77 using structured programming. Among the tasks performed by the code are the computation of Tchebycheff and Kolmogorov confidence bounds on the output variable (UA), and the use of effective non-parametric statistics to rank the influence of model input parameters (SA). The statistics employed are described in the present manual. 19 refs., 16 figs., 2 tabs. Note: This PART III is a revised version of the previous EUR report N.12700EN (1990)

1992-01-01

254

Three looks at users: a comparison of methods for studying digital library use. User studies, Digital libraries, Digital music libraries, Music, Information use, Information science, Contextual inquiry, Contextual design, User research, Questionnaires, Log file analysis  

Directory of Open Access Journals (Sweden)

Full Text Available Compares three user research methods of studying real-world digital library usage within the context of the Variations and Variations2 digital music libraries at Indiana University. After a brief description of both digital libraries, each method is described and illustrated with findings from the studies. User satisfaction questionnaires were used in two studies, one of Variations (n=30) and the other of Variations2 (n=12). Second, session activity log files were examined for 175 Variations2 sessions using both quantitative and qualitative methods. The third method, contextual inquiry, is illustrated with results from field observations of four voice students' information usage patterns. The three methods are compared in terms of expertise required; time required to set up, conduct, and analyse resulting data; and the benefits derived. Further benefits are achieved with a mixed-methods approach, combining the strengths of the methods to answer questions lingering as a result of other methods.

Mark Notess

2004-01-01

255

Explicet: Graphical user interface software for metadata-driven management, analysis, and visualization of microbiome data.  

UK PubMed Central (United Kingdom)

SUMMARY: Studies of the human microbiome, and microbial community ecology in general, have blossomed of late and are now a burgeoning source of exciting research findings. Along with the advent of next-generation sequencing platforms, which have dramatically increased the scope of microbiome-related projects, several high-performance sequence analysis pipelines (e.g., QIIME, MOTHUR, VAMPS) are now available to investigators for microbiome analysis. The subject of our manuscript, the graphical-user interface based Explicet software package, fills a previously unmet need for a robust, yet intuitive means of integrating the outputs of the software pipelines with user-specified metadata and then visualizing the combined data.Availability and Implementation: Explicet is implemented in C++ via the Qt framework and supported in native code on all major operating systems (Windows, Macintosh, Linux). The source code, documents, and tutorials are freely under an open-source license at www.explicet.org. CONTACT: Charles.Robertson@colorado.edu; Daniel.Frank@ucdenver.edu.

Robertson CE; Harris JK; Wagner BD; Granger D; Browne K; Tatem B; Feazel LM; Park K; Pace NR; Frank DN

2013-09-01

256

Arbor: comparative analysis workflows for the tree of life.  

UK PubMed Central (United Kingdom)

We describe our efforts to develop a software package, Arbor, that will enable scientific research in all aspects of comparative biology. This software will enable developmental biologists, geneticists, ecologists, geographers, paleobiologists, educators, and students to analyze diverse types of comparative data at multiple phylogenetic and spatiotemporal scales using an intuitive visual interface. Arbor's user-defined workflows will be exported and shared so that entire analyses can be quickly replicated with new or updated data. Arbor will also be designed to easily and seamlessly expand to include novel analytical tools as they are developed. Here we describe the core components of Arbor, as well as provide details of one proposed test case to illustrate the software's key functionality.

Harmon LJ; Baumes J; Hughes C; Soberon J; Specht CD; Turner W; Lisle C; Thacker RW

2013-01-01

257

A comparative study between release analysis and column flotation  

Energy Technology Data Exchange (ETDEWEB)

This paper shows the results of a comparative study between release analysis and column flotation of three Colombian coals: Guachinte (South West), Cerrejon (North) and Nech (Midlands). Analysis release was used in order to evaluate the coal potential cleaning in terms of both low ash and high organic recovery of froth. Results from release analysis were compared with those from a column flotation and showed that the froth from Nechi coal had the highest recovery and the lowest ash, followed by Cerrejon and then by Guachinte. Results of release analysis were in agreement with the column flotation. 10 refs., 4 figs., 1 tab.

Jorge Pineres; Juan Barraza [Universidad del Valle, Cali (Colombia)

2007-07-01

258

Life-Cycle Cost-Benefit (LCCB) Analysis of Bridges from a User and Social Point of View  

DEFF Research Database (Denmark)

During the last two decades, important progress has been made in the life-cycle cost-benefit (LCCB) analysis of structures, especially offshore platforms, bridges and nuclear installations. Due to the large uncertainties related to the deterioration, maintenance, and benefits of such structures, analysis based on stochastic modelling of all significant parameters seems to be the only relevant analysis. However, a great number of difficulties are involved, not only in the modelling, but also in the practical implementation of the models developed at present. The main purpose of this paper is to present and discuss some of these problems from a user and social point of view. A brief presentation of a preliminary study of the importance of including benefits in life-cycle cost-benefit analysis in management systems for bridges is shown. Benefits may be positive as well as negative from the user point of view. In the paper, negative benefits (user costs) are discussed in relation to the maintenance of concrete bridges. A limited number of excerpts from published reports that are related to the importance of estimating user costs when repairs of bridges are planned, and when optimized strategies are formulated, are shown. These excerpts clearly show that user costs in several cases completely dominate the total costs. In some cases, the user costs are more than ten times higher than the repair costs. A simple example of how to relate and estimate user costs to the repair of a single bridge is shown. Finally, how the total maintenance costs (including user costs) may be estimated for a large bridge stock is discussed.

Thoft-Christensen, Palle

2009-01-01

259

Advanced analysis system and user interface for gyrokinetic simulations of microturbulence  

Science.gov (United States)

Fully-global, 5D gyrokinetic simulations of turbulent transport in tokamak devices generate a large amount of time-dependant data that contain a wealth of information about waves, particles, and their self-consistent interactions. To explore these data in spectral space, in both wave numbers and frequencies, the information needs to be written out and analyzed in a post-process stage. This work describes the development of a MATLAB-based system for the extensive analysis of gyrokinetic simulation data, with particular application to the Gyrokinetic Tokamak Simulation code (GTS), which is being used for studying experimental discharges from NSTX, DIIID, and C-MOD. Parallel FORTRAN and C routines are used in some cases to read in the large amount of data and carry out the first stage of post-processing. Advanced MATLAB functions are then used for calculating statistical quantities, correlations, etc. A graphical user interface enhances the user experience and provides advanced plotting capabilities. Examples of microturbulence data analyses are given and discussed.

Lestz, Jeff; Shahidain, Sadik; Ethier, Stephane; Wang, Weixing

2012-10-01

260

A graphical user interface for real-time analysis of XPCS using HPC  

International Nuclear Information System (INIS)

With the development of third generation synchrotron radiation sources, X-ray photon correlation spectroscopy has emerged as a powerful technique for characterizing equilibrium and non-equilibrium dynamics in complex materials at nanometer length scales over a wide range of time-scales (0.001-1000 s). Moreover, the development of powerful new direct detection CCD cameras has allowed investigation of faster dynamical processes. A consequence of these technical improvements is the need to reduce a very large amount of area detector data within a short time. This problem can be solved by utilizing a large number of processors (32-64) in the cluster architecture to improve the efficiency of the calculations by 1-2 orders of magnitude (Tieman et al., this issue). However, to make such a data analysis system operational, powerful and user-friendly control software needs to be developed. As a part of the effort to maintain a high data acquisition and reduction rate, we have developed a Matlab-based software that acts as an interface between the user and the high performance computing (HPC) cluster.

2011-09-01

 
 
 
 
261

[Analysis of retinal nerve fiber layer in chronic tobacco and alcohol users].  

UK PubMed Central (United Kingdom)

PURPOSES: To evaluate the retinal nerve fiber layer using GDx in chronic alcohol and tobacco users. METHODS: Twenty-three chronic alcohol and tobacco users were studied (study group). As a control group, sixteen volunteers without use of alcohol and tobacco with similar characteristics (age, gender and race) were included. Both eyes were tested for analysis of the retinal nerve fiber layer with GDx. RESULTS: There was alteration in the Deviation from normal graph with a loss of nerve fibers in 43.4% of patients in the study group. In the control group this alteration was observed in 14 eyes (18.7%). As regards the parameters that allow comparison between the study and control groups there was a statistically significant difference regarding the following parameters: Ellipse modulation, Inferior ratio and Max modulation. CONCLUSIONS: The chronic use of tobacco and alcohol was associated with alteration of the nerve fiber layer. Thus, these results can contribute to the early diagnosis of nerve fiber layer loss in optic neuropathy.

de Lima Rde C; Carvalho F; Campos Sde B; Dantas H

2006-05-01

262

User's manual of SECOM2-DQFM. A computer code for seismic system reliability analysis  

International Nuclear Information System (INIS)

[en] This is the English translation of the Japanese version of the user's manual of SECOM2-DQFM, which is developed for seismic reliability analysis of complex engineering systems, such as nuclear power plants. Given that the seismic hazard curve of the location site of a plant and the fault tree/event tree (FT/ET) models of this plant were known, if the capacities and responses of components were available, the conditional occurrence probability (or frequency) of the top event of the FT models could be estimated with SECOM2-DQFM. In addition, the importance of each basic event as well as the occurrence frequency of each accident sequence could also be obtained. In order to evaluate the concurrent failure probability of multiple components due to earthquake, the method of Direct Quantification of Fault Tree using Monte Carlo simulation (DQFM) is adopted in SECOM2-DQFM. In this method, the capacity and response of each component are generated from their probability distributions. Then the capacities (as well as responses) of several components are made correlated following a given set of correlation rules. As a user manual of SECOM2-DQFM, this report is organized as follows. Chapter 1 gives a short summary of SECOM2-DQFM. Then how to combine and execute SECOM2-DQFM is described in Chapter 2. Further, how to prepare the original SECOM2 format input data is written in Chapter 3. Finally, how to prepare the NAMELIST format input data is given in Chapter 4. (author)

2008-01-01

263

'I just want to be normal': An analysis of discourses of normality among recovering heroin users.  

UK PubMed Central (United Kingdom)

Research that has explored the lives of men and women recovering from heroin addiction has reported that users often claim that they 'just want to be normal'. Working within a Foucauldian tradition, we argue in this article that the notions of 'governmentality' and the 'norm' are especially apposite to understanding the ubiquity of this aspiration. Here we focus not on the formal institutions of governance that encourage individuals to adhere to social, cultural and political norms, but rather seek to explore recovering users' accounts of normality as they are envisaged and expressed. The reported empirical data were generated from interviews with 40 men and women in England at various stages of recovery from heroin use. The analytic focus is upon the accounts of normality articulated during the interviews in order to identify the ways in which being normal is presented by the participants. In keeping with the methodological tradition of discourse analysis we identify six discursive repertoires of 'normality talk' that transcend the accounts. It is concluded that the negotiation of normality is a precarious route for this social group. Articulations of a desire to be normal are replete with tensions; there are expressions of both resistance and resignation. Despite claims by some contemporary social theorists that diversity is the 'new normality', the accepted bounds of 'difference' are limited for those who have been addicted to heroin.

Nettleton S; Neale J; Pickering L

2013-03-01

264

User's guide for the REBUS-3 fuel cycle analysis capability  

Energy Technology Data Exchange (ETDEWEB)

REBUS-3 is a system of programs designed for the fuel-cycle analysis of fast reactors. This new capability is an extension and refinement of the REBUS-3 code system and complies with the standard code practices and interface dataset specifications of the Committee on Computer Code Coordination (CCCC). The new code is hence divorced from the earlier ARC System. In addition, the coding has been designed to enhance code exportability. Major new capabilities not available in the REBUS-2 code system include a search on burn cycle time to achieve a specified value for the multiplication constant at the end of the burn step; a general non-repetitive fuel-management capability including temporary out-of-core fuel storage, loading of fresh fuel, and subsequent retrieval and reloading of fuel; significantly expanded user input checking; expanded output edits; provision of prestored burnup chains to simplify user input; option of fixed-or free-field BCD input formats; and, choice of finite difference, nodal or spatial flux-synthesis neutronics in one-, two-, or three-dimensions.

Toppel, B.J.

1983-03-01

265

MultiMetEval: comparative and multi-objective analysis of genome-scale metabolic models.  

Science.gov (United States)

Comparative metabolic modelling is emerging as a novel field, supported by the development of reliable and standardized approaches for constructing genome-scale metabolic models in high throughput. New software solutions are needed to allow efficient comparative analysis of multiple models in the context of multiple cellular objectives. Here, we present the user-friendly software framework Multi-Metabolic Evaluator (MultiMetEval), built upon SurreyFBA, which allows the user to compose collections of metabolic models that together can be subjected to flux balance analysis. Additionally, MultiMetEval implements functionalities for multi-objective analysis by calculating the Pareto front between two cellular objectives. Using a previously generated dataset of 38 actinobacterial genome-scale metabolic models, we show how these approaches can lead to exciting novel insights. Firstly, after incorporating several pathways for the biosynthesis of natural products into each of these models, comparative flux balance analysis predicted that species like Streptomyces that harbour the highest diversity of secondary metabolite biosynthetic gene clusters in their genomes do not necessarily have the metabolic network topology most suitable for compound overproduction. Secondly, multi-objective analysis of biomass production and natural product biosynthesis in these actinobacteria shows that the well-studied occurrence of discrete metabolic switches during the change of cellular objectives is inherent to their metabolic network architecture. Comparative and multi-objective modelling can lead to insights that could not be obtained by normal flux balance analyses. MultiMetEval provides a powerful platform that makes these analyses straightforward for biologists. Sources and binaries of MultiMetEval are freely available from https://github.com/PiotrZakrzewski/MetEval/downloads. PMID:23272111

Zakrzewski, Piotr; Medema, Marnix H; Gevorgyan, Albert; Kierzek, Andrzej M; Breitling, Rainer; Takano, Eriko

2012-12-14

266

MultiMetEval: comparative and multi-objective analysis of genome-scale metabolic models.  

UK PubMed Central (United Kingdom)

Comparative metabolic modelling is emerging as a novel field, supported by the development of reliable and standardized approaches for constructing genome-scale metabolic models in high throughput. New software solutions are needed to allow efficient comparative analysis of multiple models in the context of multiple cellular objectives. Here, we present the user-friendly software framework Multi-Metabolic Evaluator (MultiMetEval), built upon SurreyFBA, which allows the user to compose collections of metabolic models that together can be subjected to flux balance analysis. Additionally, MultiMetEval implements functionalities for multi-objective analysis by calculating the Pareto front between two cellular objectives. Using a previously generated dataset of 38 actinobacterial genome-scale metabolic models, we show how these approaches can lead to exciting novel insights. Firstly, after incorporating several pathways for the biosynthesis of natural products into each of these models, comparative flux balance analysis predicted that species like Streptomyces that harbour the highest diversity of secondary metabolite biosynthetic gene clusters in their genomes do not necessarily have the metabolic network topology most suitable for compound overproduction. Secondly, multi-objective analysis of biomass production and natural product biosynthesis in these actinobacteria shows that the well-studied occurrence of discrete metabolic switches during the change of cellular objectives is inherent to their metabolic network architecture. Comparative and multi-objective modelling can lead to insights that could not be obtained by normal flux balance analyses. MultiMetEval provides a powerful platform that makes these analyses straightforward for biologists. Sources and binaries of MultiMetEval are freely available from https://github.com/PiotrZakrzewski/MetEval/downloads.

Zakrzewski P; Medema MH; Gevorgyan A; Kierzek AM; Breitling R; Takano E

2012-01-01

267

BPO crude oil analysis data base user`s guide: Methods, publications, computer access correlations, uses, availability  

Energy Technology Data Exchange (ETDEWEB)

The Department of Energy (DOE) has one of the largest and most complete collections of information on crude oil composition that is available to the public. The computer program that manages this database of crude oil analyses has recently been rewritten to allow easier access to this information. This report describes how the new system can be accessed and how the information contained in the Crude Oil Analysis Data Bank can be obtained.

Sellers, C.; Fox, B.; Paulz, J.

1996-03-01

268

User's manuals of probabilistic fracture mechanics analysis code for aged piping, PASCAL-SP  

International Nuclear Information System (INIS)

As a part of research on the material degradation and structural integrity assessment for aged LWR components, a PFM (Probabilistic Fracture Mechanics) analysis code PASCAL-SP (PFM Analysis of Structural Components in Aging LWR - Stress Corrosion Cracking at Welded Joints of Piping) has been developed. This code evaluates the failure probabilities at welded joints of aged piping by a Monte Carlo method. PASCAL-SP treats stress corrosion cracking (SCC) and fatigue crack growth in piping, according to the approaches of NISA and JSME FFS Code. The development of the code has been aimed to improve the accuracy and reliability of analysis by introducing new analysis methodologies and algorithms considering the latest knowledge in the SCC assessment and fracture criteria of piping. In addition, the accuracy of flaw detection and sizing at in-service inspection and residual stress distribution were modeled based on experimental data and introduced into PASCAL-SP. This code has been developed for a cross-check use by the regulatory body in Japan. In addition to this, this code can also be used for a research purpose by researchers in academia and industries. This report provides the user's manual and theoretical background of the code. (author)

2010-01-01

269

User guide for data analysis of estimation algorithm of loose parts  

International Nuclear Information System (INIS)

Generally, it is known that loose parts in the reactor coolant systems (RCS) bring serious damage into the system components and impede the normal function of the system. So, it is necessary to rapidly respond when the impact event has occurred. But the existing system is known to only alarm information for the operator. The report presented the user guide of the estimation algorithm needed to diagnosis and proposed how to use the impact test and actual impact of Database. The Database will be used to compare the test data with the actual data when the impact event has occurred. Appendix I include that the estimation algorithm applied to the impact test data and actual impact data is proposed. Appendix II is represented to the report about the actual impact data sent to the operator, until now. Appendix III shows the flowchart of LPMS's Monitoring and diagnosis at each plant

2001-01-01

270

Design and Analysis of Multi-User SDMA Systems with Noisy Limited CSIT Feedback  

CERN Multimedia

In this paper, we consider spatial-division multiple-access (SDMA) systems with one base station with multiple antennae and a number of single antenna mobiles under noisy limited CSIT feedback. We propose a robust noisy limited feedback design for SDMA systems. The solution consists of a real-time robust SDMA precoding, user selection and rate adaptation as well as an offline feedback index assignment algorithm. The index assignment problem is cast into a Traveling Sales Man problem (TSP). Based on the specific structure of the feedback constellation and the precoder, we derive a low complex but asymptotically optimal solution. Simulation results show that the proposed framework has significant goodput gain compared to the traditional naive designs under noisy limited feedback channel. Furthermore, we show that despite the noisy feedback channel, the average SDMA system goodput grows with the number of feedback bits in the interference limited regime while in noise limited regime increases linearly with the n...

Wu, Tianyu

2010-01-01

271

Analysis of conditions and organization of work of notebook computer users.  

UK PubMed Central (United Kingdom)

AIM: The aim of this study was to evaluate working conditions with a notebook computer (notebook) as a potential cause of musculoskeletal disorders. MATERIAL AND METHODS: The study had 2 stages. The first one was a questionnaire survey among 300 notebook users. The next stage was an expert analysis of 53 randomly selected workstations. The questionnaire survey included questions about the participants, their working conditions, work organization and also duration of work with a notebook. RESULTS AND CONCLUSIONS: The results of the research showed that most examined operators used a notebook as a basic working tool. The most important irregularities included an unadjustable working surface, unadjustable height of the seat pan and backrest, unadjustable height and distance between the armrests and no additional ergonomic devices (external keyboard, docking station, notebook stand or footstool).

Mali?ska M; Bugajska J; Kami?ska J; J?dryka-Góral A

2012-01-01

272

Light water reactor fuel analysis code FEMAXI-IV(Ver.2). Detailed structure and user's manual  

International Nuclear Information System (INIS)

A light water reactor fuel behavior analysis code FEMAXI-IV(Ver.2) was developed as an improved version of FEMAXI-IV. Development of FEMAXI-IV has been already finished in 1992, though a detailed structure and input manual of the code have not been open to users yet. Here, the basic theories and structure, the models and numerical solutions applied to FEMAXI-IV(Ver.2), and the material properties adopted in the code are described in detail. In FEMAXI-IV(Ver.2), programming bugs in previous FEMAXI-IV were eliminated, renewal of the pellet thermal conductivity was performed, and a model of thermal-stress restraint on FP gas release was incorporated. For facilitation of effective and wide-ranging application of the code, methods of input/output of the code are also described in detail, and sample output is included. (author).

1997-01-01

273

Analysis of Audit Expectation Gap Between Users of Audit Reports and Independent Auditors About the Features of Independent Auditors  

Directory of Open Access Journals (Sweden)

Full Text Available IDifferences between what users expect from the auditor and what the auditor actually provides is often called the 'audit expectation gap'. The study tries to identify the gaps between users of audit reports and independent auditors about the features of independent auditors and offer a solution to reduce it. For this purpose, intended features of independent auditors will play the role of component for developed hypotheses. This research was performed through distributing questionnaire among the independent auditors and users (stockholders and managers). In addition, Kruskal-Wallis test, Analysis of Variance (ANOVA) and Tukey post hoc test were used to test hypotheses. The results of the study indicate that there is a significant different between users of audit reports and independent auditors about the features of independent auditors.

Saeid Jabbarzadeh Kangarlouei; Morteza Motavassel; Yaghoub Pourkarim; Asghar Emamdoost; Vali Pourkarim

2012-01-01

274

User's manual for seismic analysis code 'SONATINA-2V'  

Energy Technology Data Exchange (ETDEWEB)

The seismic analysis code, SONATINA-2V, has been developed to analyze the behavior of the HTTR core graphite components under seismic excitation. The SONATINA-2V code is a two-dimensional computer program capable of analyzing the vertical arrangement of the HTTR graphite components, such as fuel blocks, replaceable reflector blocks, permanent reflector blocks, as well as their restraint structures. In the analytical model, each block is treated as rigid body and is restrained by dowel pins which restrict relative horizontal movement but allow vertical and rocking motions between upper and lower blocks. Moreover, the SONATINA-2V code is capable of analyzing the core vibration behavior under both simultaneous excitations of vertical and horizontal directions. The SONATINA-2V code is composed of the main program, pri-processor for making the input data to SONATINA-2V and post-processor for data processing and making the graphics from analytical results. Though the SONATINA-2V code was developed in order to work in the MSP computer system of Japan Atomic Energy Research Institute (JAERI), the computer system was abolished with the technical progress of computer. Therefore, improvement of this analysis code was carried out in order to operate the code under the UNIX machine, SR8000 computer system, of the JAERI. The users manual for seismic analysis code, SONATINA-2V, including pri- and post-processor is given in the present report. (author)

Hanawa, Satoshi; Iyoku, Tatsuo [Japan Atomic Energy Research Inst., Oarai, Ibaraki (Japan). Oarai Research Establishment

2001-08-01

275

A graphical user-interface-driven waveform data acquisition and analysis system  

Energy Technology Data Exchange (ETDEWEB)

We have developed a computerized waveform data acquisition and analysis system that uses the graphic user interface of the Macintosh computer. The system provides the means fro acquiring single-shot waveforms from a variety of recorders and digital oscilloscopes on an IEEE-488 instrument bus. The computer interrogates each address on the bus to determine the identity and configuration of any combination of CAMAC crates and oscilloscopes connected to the IEEE-488 bus. Graphic representations of each instrument and/or CAMAC module are displayed on the computer screen. A unique method is used to configure the software to represent graphically the signal path and content. The operator may draw connections through intermediate modules and enter calibrations for signal sources to give a complete data base of transfer functions and signal paths. The data base is used to generate graphs of the waveforms reduced to the desired engineering units. This system is designed to reduce the operator workload and specialized knowledge by providing guidance for the use of a particular instrument. Once acquired, the data may be manipulated by means of several signal-processing functions, such as smoothing, filtering, fitting, and Fourier analysis. Waveforms may be combined into complex data sets for complete Fourier analysis. The data are normally stored in a compact binary format to minimize the impact on archival storage. However, they may be translated to more general ASC2 formates, if desired. Any waveform graphic may be transferred to word-processing and page layout software for publication. 8 figs.

Chamberlin, A.; Holder, M.D.; McAfee, J.M.

1990-01-01

276

C language program analysis system (CLAS) part 1: graphical user interface (GUI)  

International Nuclear Information System (INIS)

[en] CLAS (C Language Program Analysis System) is a reverse engineering tool intended for use in the verification and validation (V and V) phase of software programs developed in the ANSI C language. From the source code, CLAS generates data pertaining to two conceptual models of software programs viz., Entity-Relationship (E-R) model and Control Flow Graphs (CFG) model. Browsing tools within CLAS, make use of this data, to provide different graphical views of the project. Static analysis tools have been developed earlier for analysing assembly language programs. CLAS is a continuation of this work to provide automated support in analysis of ANSI C language programs. CLAS provides an integrated Graphical User Interface (GUI) based environment under which programs can be analysed into the above mentioned models and the analysed data can be viewed using the browsing tools. The GUI of CLAS is implemented using an OPEN LOOK compliant tool kit XVIEW on Sun SPARC IPC workstation running Sun OS 4.1.1 rev. B. This report describes the GUI of CLAS. CLAS is also expected to be useful in other contexts which may involve understanding architecture/structure of already developed C language programs. Such requirements can arise while carrying out activities like code modification, parallelising etc. (author). 5 refs., 13 figs., 1 appendix

1994-01-01

277

Using digital photogrammetry to conduct an anthropometric analysis of wheelchair users.  

UK PubMed Central (United Kingdom)

This study deals with using digital photogrammetry to make an anthropometric analysis of wheelchair users. To analyse the data, Digita software was used, which was made available by means of the agreement of the Design Department of the Federal University of Pernambuco--Brazil--with the Department of Ergonomics of the Technical University of Lisbon--Portugal. Data collection involved a random sample of 18 subjects and occurred in the Biomechanics Laboratory of the Maurice of Nassau Faculty, located in Recife, Pernambuco. The methodology applied comprises the steps of Ergonomic Assessment, Configuration of the Data Base, Taking Digital Photographs, Digitalising the Coordinates and Presentation of Results. 15 structural variables related to static anthropometry were analysed, and 4 functional range variables relating to dynamic anthropometry. The results were presented by analysing personal data, classified by gender, ethnicity and age; by functional analysis of the sample, classified by clinical diagnosis, results of assessing the joints, results of the evaluation through motion and postural evaluation; and of the analysis of the anthropometric sample, which indicated for each variable the number of people, the mean, the standard deviation, and the minimum, median and maximum values.

Barros HO; Soares M

2012-01-01

278

Comparative analysis of traditional and alternative energy sources  

Directory of Open Access Journals (Sweden)

Full Text Available The presented thesis with designation of Comparing analysis of traditional and alternative energy resources includes, on basisof theoretical information source, research in firm, internal data, trends in company development and market, descriptionof the problem and its application. Theoretical information source is dedicated to the traditional and alternative energy resources,reserves of it, trends in using and development, the balance of it in the world, EU and in Slovakia as well. Analysis of the thesisis reflecting profile of the company and the thermal pump market evaluation using General Electric method. While the companyis implementing, except other products, the thermal pumps on geothermal energy base and surround energy base (air), the missionof the comparing analysis is to compare traditional energy resources with thermal pump from the ecological, utility and economic sideof it. The results of the comparing analysis are resumed in to the SWOT analysis. The part of the thesis includes he questionnaire offerfor effectiveness improvement and customer satisfaction analysis, and expected possibilities of alternative energy resources assistance(benefits) from the government and EU funds.

Adriana Csikósová; Lívia Bodonská

2008-01-01

279

Comparative analysis of traditional and alternative energy sources  

International Nuclear Information System (INIS)

[en] The presented thesis with designation of Comparing analysis of traditional and alternative energy resources includes, on basis of theoretical information source, research in firm, internal data, trends in company development and market, description of the problem and its application. Theoretical information source is dedicated to the traditional and alternative energy resources, reserves of it, trends in using and development, the balance of it in the world, EU and in Slovakia as well. Analysis of the thesis is reflecting profile of the company and the thermal pump market evaluation using General Electric method. While the company is implementing, except other products, the thermal pumps on geothermal energy base and surround energy base (air), the mission of the comparing analysis is to compare traditional energy resources with thermal pump from the ecological, utility and economic side of it. The results of the comparing analysis are resumed in to the SWOT analysis. The part of the thesis includes t he questionnaire offer for effectiveness improvement and customer satisfaction analysis, and expected possibilities of alternative energy resources assistance (benefits) from the government and EU funds. (authors)

2008-01-01

280

Theoretical and user`s manual for pc-PRAISE: A probabilistic fracture mechanics computer code for piping reliability analysis  

Energy Technology Data Exchange (ETDEWEB)

The purpose of this document is to collect under one cover and update the documentation related to the PRAISE Computer Code. pc-PRAISE is the most recent version of the code, which is a probabilistic fracture mechanics code that has recently been modified to run on an IBM personal computer to evaluate the reliability of welds in nuclear power plant piping systems. pc-PRAISE was adapted from the PRAISE Computer Code, which was originally developed in 1980--81 by Lawrence Livermore National Laboratory (LLNL) under funding from the US Nuclear Regulatory Commission for assessment of the influence of seismic events on the failure probability of piping in pressurized water reactors. PRAISE is an acronym for Piping Reliability Analysis Including Seismic Events, and has been significantly expanded in recent years to allow consideration of both crack initiation and growth in a variety of piping materials in pressurized and boiling water reactors. PRAISE has a deterministic basis in fracture mechanics. Some of the inputs, such as initial crack size and inspection detection probability, are considered to be random variables, and failure probability versus time for a given weldment is evaluated by Monte Carlo simulation. Complex realistic stress histories can be treated by the code, and sets of random material properties for representative piping materials are built into the code. This document provides a comprehensive summary of the deterministic basis of the code, along with description of statistical distributions of random variables. Code inputs are described and an extensive set of sample problems is provided along with descriptions of representative outputs.

Harris, D.O.; Dedhia, D.D. [Failure Analysis Associates, Inc., Menlo Park, CA (United States); Lu, S.C. [Lawrence Livermore National Lab., CA (United States)

1992-07-01

 
 
 
 
281

Recent national trends in Salvia divinorum use and substance-use disorders among recent and former Salvia divinorum users compared with nonusers  

Directory of Open Access Journals (Sweden)

Full Text Available Li-Tzy Wu1, George E Woody2, Chongming Yang3, Jih-Heng Li4, Dan G Blazer11Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA; 2Department of Psychiatry, University of Pennsylvania and Treatment Research Institute, Philadelphia, PA, USA; 3Social Science Research Institute, Duke University, Durham, NC, USA; 4College of Pharmacy, Kaohsiung Medical University, Kaohsiung, TaiwanContext: Media and scientific reports have indicated an increase in recreational use of Salvia divinorum. Epidemiological data are lacking on the trends, prevalence, and correlates of S. divinorum use in large representative samples, as well as the extent of substance use and mental health problems among S. divinorum users.Objective: To examine the national trend in prevalence of S. divinorum use and to identify sociodemographic, behavioral, mental health, and substance-use profiles of recent (past-year) and former users of S. divinorum.Design: Analyses of public-use data files from the 2006–2008 United States National Surveys on Drug Use and Health (N = 166,453).Setting: Noninstitutionalized individuals aged 12 years or older were interviewed in their places of residence.Main measures: Substance use, S. divinorum, self-reported substance use disorders, criminality, depression, and mental health treatment were assessed by standardized survey questions administered by the audio computer-assisted self-interviewing method.Results: Among survey respondents, lifetime prevalence of S. divinorum use had increased from 0.7% in 2006 to 1.3% in 2008 (an 83% increase). S. divinorum use was associated with ages 18–25 years, male gender, white or multiple race, residence of large metropolitan areas, arrests for criminal activities, and depression. S. divinorum use was particularly common among recent drug users, including users of lysergic acid diethylamide (53.7%), ecstasy (30.1%), heroin (24.2%), phencyclidine (22.4%), and cocaine (17.5%). Adjusted multinomial logistic analyses indicated polydrug use as the strongest determinant for recent and former S. divinorum use. An estimated 43.0% of past-year S. divinorum users and 28.9% of former S. divinorum users had an illicit or nonmedical drug-use disorder compared with 2.5% of nonusers. Adjusted logistic regression analyses showed that recent and former S. divinorum users had greater odds of having past-year depression and a substance-use disorder (alcohol or drugs) than past-year alcohol or drug users who did not use S. divinorum.Conclusion: S. divinorum use is prevalent among recent or active drug users who have used other hallucinogens or stimulants. The high prevalence of substance use disorders among recent S. divinorum users emphasizes the need to study health risks of drug interactions.Keywords: alcohol-use disorders, drug-use disorders, ecstasy, lysergic acid diethylamide, major depression, multiple race, nicotine dependence, phencyclidine, prescription drug abuse

Wu LT; Woody GE; Yang C; Li JH; Blazer DG

2011-01-01

282

Vertical guidance performance analysis of the L1-L5 dual-frequency GPS/WAAS user avionics sensor.  

Science.gov (United States)

This paper investigates the potential vertical guidance performance of global positioning system (GPS)/wide area augmentation system (WAAS) user avionics sensor when the modernized GPS and Galileo are available. This paper will first investigate the airborne receiver code noise and multipath (CNMP) confidence (?air). The ?air will be the dominant factor in the availability analysis of an L1-L5 dual-frequency GPS/WAAS user avionics sensor. This paper uses the MATLAB Algorithm Availability Simulation Tool (MAAST) to determine the required values for the ?air, so that an L1-L5 dual-frequency GPS/WAAS user avionics sensor can meet the vertical guidance requirements of APproach with Vertical guidance (APV) II and CATegory (CAT) I over conterminous United States (CONUS). A modified MAAST that includes the Galileo satellite constellation is used to determine under what user configurations WAAS could be an APV II system or a CAT I system over CONUS. Furthermore, this paper examines the combinations of possible improvements in signal models and the addition of Galileo to determine if GPS/WAAS user avionics sensor could achieve 10 m Vertical Alert Limit (VAL) within the service volume. Finally, this paper presents the future vertical guidance performance of GPS user avionics sensor for the United States' WAAS, Japanese MTSAT-based satellite augmentation system (MSAS) and European geostationary navigation overlay service (EGNOS). PMID:22319263

Jan, Shau-Shiun

2010-03-25

283

Vertical Guidance Performance Analysis of the L1-L5 Dual-Frequency GPS/WAAS User Avionics Sensor  

Directory of Open Access Journals (Sweden)

Full Text Available This paper investigates the potential vertical guidance performance of global positioning system (GPS)/wide area augmentation system (WAAS) user avionics sensor when the modernized GPS and Galileo are available. This paper will first investigate the airborne receiver code noise and multipath (CNMP) confidence (?air). The ?air will be the dominant factor in the availability analysis of an L1-L5 dual-frequency GPS/WAAS user avionics sensor. This paper uses the MATLAB Algorithm Availability Simulation Tool (MAAST) to determine the required values for the ?air, so that an L1-L5 dual-frequency GPS/WAAS user avionics sensor can meet the vertical guidance requirements of APproach with Vertical guidance (APV) II and CATegory (CAT) I over conterminous United States (CONUS). A modified MAAST that includes the Galileo satellite constellation is used to determine under what user configurations WAAS could be an APV II system or a CAT I system over CONUS. Furthermore, this paper examines the combinations of possible improvements in signal models and the addition of Galileo to determine if GPS/WAAS user avionics sensor could achieve 10 m Vertical Alert Limit (VAL) within the service volume. Finally, this paper presents the future vertical guidance performance of GPS user avionics sensor for the United States’ WAAS, Japanese MTSAT-based satellite augmentation system (MSAS) and European geostationary navigation overlay service (EGNOS).

Shau-Shiun Jan

2010-01-01

284

Vertical guidance performance analysis of the L1-L5 dual-frequency GPS/WAAS user avionics sensor.  

UK PubMed Central (United Kingdom)

This paper investigates the potential vertical guidance performance of global positioning system (GPS)/wide area augmentation system (WAAS) user avionics sensor when the modernized GPS and Galileo are available. This paper will first investigate the airborne receiver code noise and multipath (CNMP) confidence (?air). The ?air will be the dominant factor in the availability analysis of an L1-L5 dual-frequency GPS/WAAS user avionics sensor. This paper uses the MATLAB Algorithm Availability Simulation Tool (MAAST) to determine the required values for the ?air, so that an L1-L5 dual-frequency GPS/WAAS user avionics sensor can meet the vertical guidance requirements of APproach with Vertical guidance (APV) II and CATegory (CAT) I over conterminous United States (CONUS). A modified MAAST that includes the Galileo satellite constellation is used to determine under what user configurations WAAS could be an APV II system or a CAT I system over CONUS. Furthermore, this paper examines the combinations of possible improvements in signal models and the addition of Galileo to determine if GPS/WAAS user avionics sensor could achieve 10 m Vertical Alert Limit (VAL) within the service volume. Finally, this paper presents the future vertical guidance performance of GPS user avionics sensor for the United States' WAAS, Japanese MTSAT-based satellite augmentation system (MSAS) and European geostationary navigation overlay service (EGNOS).

Jan SS

2010-01-01

285

Using financial ratio analysis to compare hospitals' performance.  

UK PubMed Central (United Kingdom)

Financial ratio analysis allows a hospital to evaluate its own performance over time and to compare itself with other hospitals. Through reclassification procedures, potential distortions are reduced, and administrative decisions can be based on more reliable rations. Step 1 reclassifies financial statements for analysis, step 2 computes and explains ratios, and step 3 combines ratios into patterns for interpretations. Step 4 describes the 209-hospital sample, step 5 compares three individual hospitals' ratios to industry ratios, and step 6 discusses behavior of two hospitals' ratios and industry ratios over time.

Choate GM; Tanaka K

1979-12-01

286

Matrix analysis of the insider threat (MAIT) user's manual  

Energy Technology Data Exchange (ETDEWEB)

MAIT is a sophisticated method for the analysis of safeguards or security systems that determines if single or multiple insiders can covertly sabotage a facility or system, or can covertly divert a resource that is present in the facility or system. The MAIT method provides a detailed, organized way to exhaustively examine the safeguards or security system against these covert threats. An evaluation of this broad scope is beyond the reasonable capability of an analyst working without computer assistance. The MAIT analysis is conducted by first manually collecting detailed facility design data and access and control information for each individual safeguard measure. With this information, the MAIT computer code synthesizes every possible situation and returns data to the analyst concerning those particular events that are not adequately protected. This report replaces the previous user's manual (SAI-78-960-LJ). It includes the details that an analyst needs to know to use the upgraded MAIT evaluation method. The major changes incorporated in the present version of the method include the evaluation of scenarios that span two conditions, the consolidation of theft and sabotage versions of the program and the incorporation and consideration of secondary targets in a path.

McDaniel, T.L.; Stoddard, J.A.

1981-11-01

287

[Comparative molecular field analysis (CoMFA) of allylamine antimycotics  

UK PubMed Central (United Kingdom)

Active analog approach has been applied to determine the pharmacophoric conformations of the allylamine antimycotics. Comparative molecular field analysis (CoMFA) has been used to establish 3D-QSAR of 48 allylamine antimycotics against six common human pathogenic fungi. Two different alignment rules were compared in the meantime. Five new synthetic compounds have been successfully employed to examine the predictive abilities of the CoMFA models against Trichophyton mentagrophytes and Aspergillus fumigatus.

Ji HT; Zhang WN; Zhou YJ; Lu JG; Li K; Zhu J; Liu N

1997-08-01

288

Gap Analysis Comparing LLNL ISMS and ISO 14001  

Energy Technology Data Exchange (ETDEWEB)

A gap analysis was conducted comparing the Lawrence Livermore National Laboratory (LLNL) Integrated Safety Management System (ISMS) with the international standard ISO 14001 Environmental Management System and with Department of Energy (DOE) Order 450.1. This analysis was accomplished as part of LLNL's assessment of the impacts of adopting DOE Order 450.1 and comprises a portion of its continuous improvement efforts under ISMS.

Doerr, T B

2004-08-09

289

Comparative Analysis of the Main Business Intelligence Solutions  

Directory of Open Access Journals (Sweden)

Full Text Available Nowadays, Business Intelligence solutions are the main tools for analyzing and monitoring the company’s performance at any organizational level. This paper presents a comparative analysis of the most powerful Business Intelligence solutions using a set of technical features such as infrastructure of the platform, development facilities, complex analysis tools, interactive dashboards and scorecards, mobile integration and complex implementation of performance management methodologies.

Alexandra RUSANEANU

2013-01-01

290

A cluster analysis of not-in-treatment drug users at risk for HIV infection.  

Science.gov (United States)

The purpose of the analysis described here was to classify not-in-treatment drug users participating in the National Institute on Drug Abuse (NIDA)-sponsored Cooperative Agreement study into several "homogeneous" HIV risk groups using cluster analysis. Data for this analysis (N=17,778) were collected at 19 study sites in the United States and Puerto Rico. Measures selected for the cluster analysis were limited to (a) current drug use and HIV risk behaviors, (b) mutually exclusive behaviors, (c) behaviors directly related to HIV risk, and (d) behaviors that were not statistically rare. Eight homogeneous HIV risk clusters were produced. Crack cocaine use was the most distinguishing feature of three clusters. Another three clusters were distinguishable by drug injection and needle use practices. Two additional clusters could not be grouped with either the crack- or the injection-dominant clusters. Prostitution was the most distinguishing risk behavior of one of these clusters, and extremely high drug injection frequencies and relative rates of risky needle use characterized the other. Composition of the clusters varied significantly by gender, race/ethnicity, educational attainment, and drug use characteristics. In addition, perceptions and behaviors initiated to reduce the chances of becoming infected with HIV varied by cluster. Subjects in the crack-predominant clusters reported low perceptions of the chances of getting AIDS. Perceptions of the chances of becoming infected with HIV among subjects in the injection-predominant clusters were strongly related to injection frequency. Seroprevalence was also related to cluster. Higher rates of HIV infection were evident among the injection-predominant clusters, and higher rates were related to frequency of injection and the rate of risky needle use. Among the crack-predominant clusters, the relationship between drug use and sexual behaviors and HIV infection was less clear. PMID:9643462

Williams, M L; Zhao, Z; Freeman, R C; Elwood, W N; Rusek, R; Booth, R E; Dennis, M L; Fisher, D G; Rhodes, F; Weatherby, N L

1998-05-01

291

Creating an Efficient User Interface for the Analysis and Download of SPICE Spacecraft and Planet Kernel (SPK) Files  

Science.gov (United States)

NASA's SPICE ancillary information system deals with observation geometry, time, and events which support the planning for and analysis of science instrument data. Since its development, SPICE has proven to be an invaluable tool to a variety of users involved in mission planning, pre-flight mission evaluation, detailed science observation planning, mission operations engineering functions, science data analysis, data archiving, and education and public outreach. SPICE users now range from scientists and engineers in the Space Science Community to researchers in the Earth Sciences. A need has been established for a utility program where users of SPICE data files-called kernels-can efficiently choose specific kernel files to download for use in analyzing data returned from instruments onboard planetary exploration spacecraft. This interface would provide the user with a way of selecting kernels, specifically Spacecraft and Planet Kernels (SPK) containing ephemeris data of target bodies from these missions, which satisfy a user's search criteria. This project chronicles the research and development of a tool that utilizes graphical representations of SPK files to help a user search for, analyze, and select SPK files to download from the SPICE server at JPL directly to the user's own workstation. These graphs would represent the time-coverage and continuity of SPKs, and even further, the epochs, called segments, contained within these SPKs. This utility includes interactive features such as buttons, that when selected can either narrow the scope of the SPK files requested, show a more detailed representation of the selected kernels, or present a summary and/or comments about each kernel. These tools are all intended to streamline the search and selection process of SPK files containing spacecraft parameters important for the scientific interpretation of planetary data. This work is funded by NASA's Planetary Data System (PDS) College Student Investigator (CSI) program.

Bulalacao, John Matthew; Jet Propulsion Laboratory, NASA; Navigation; Information Facility, Ancillary; Data System, Planetary; Maryland, University of; County, Baltimore

2007-10-01

292

[Overview of design, implementation and analysis of comparative effectiveness research].  

UK PubMed Central (United Kingdom)

Comparative effectiveness research (CER) has been regarded as a hot topic in health care recently. Many medicalresearchers currently deem CER as a potential powerful instrument for improving the quality of healthcare and cut medical cost. However, in the past, classic efficacy studies are always focusing on comparing one new intervention with placebo under complete controlled environment. Now CER turns to comparing different interventions directly in real world of routine practice. This article reviewed a series of literature about the design, implementation and analysis of CER in order to give a clue for Chinese medicine researchers in future.

Liao X; Xie YM; Tian F; Shen H

2013-03-01

293

Tools for comparative protein structure modeling and analysis.  

Science.gov (United States)

The following resources for comparative protein structure modeling and analysis are described (http://salilab.org): MODELLER, a program for comparative modeling by satisfaction of spatial restraints; MODWEB, a web server for automated comparative modeling that relies on PSI-BLAST, IMPALA and MODELLER; MODLOOP, a web server for automated loop modeling that relies on MODELLER; MOULDER, a CPU intensive protocol of MODWEB for building comparative models based on distant known structures; MODBASE, a comprehensive database of annotated comparative models for all sequences detectably related to a known structure; MODVIEW, a Netscape plugin for Linux that integrates viewing of multiple sequences and structures; and SNPWEB, a web server for structure-based prediction of the functional impact of a single amino acid substitution. PMID:12824331

Eswar, Narayanan; John, Bino; Mirkovic, Nebojsa; Fiser, Andras; Ilyin, Valentin A; Pieper, Ursula; Stuart, Ashley C; Marti-Renom, Marc A; Madhusudhan, M S; Yerkovich, Bozidar; Sali, Andrej

2003-07-01

294

GProX, a User-Friendly Platform for Bioinformatics Analysis and Visualization of Quantitative Proteomics Data  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Recent technological advances have made it possible to identify and quantify thousands of proteins in a single proteomics experiment. As a result of these developments, the analysis of data has become the bottleneck of proteomics experiment. To provide the proteomics community with a user-friendly p...

Rigbolt, Kristoffer T G; Vanselow, Jens T; Blagoev, Blagoy

295

Initial Implementation of a Comparative Data Analysis Ontology  

Directory of Open Access Journals (Sweden)

Full Text Available Comparative analysis is used throughout biology. When entities under comparison (e.g. proteins, genomes, species) are related by descent, evolutionary theory provides a framework that, in principle, allows N-ary comparisons of entities, while controlling for non-independence due to relatedness. Powerful software tools exist for specialized applications of this approach, yet it remains under-utilized in the absence of a unifying informatics infrastructure. A key step in developing such an infrastructure is the definition of a formal ontology. The analysis of use cases and existing formalisms suggests that a significant component of evolutionary analysis involves a core problem of inferring a character history, relying on key concepts: “Operational Taxonomic Units” (OTUs), representing the entities to be compared; “character-state data” representing the observations compared among OTUs; “phylogenetic tree”, representing the historical path of evolution among the entities; and “transitions”, the inferred evolutionary changes in states of characters that account for observations. Using the Web Ontology Language (OWL), we have defined these and other fundamental concepts in a Comparative Data Analysis Ontology (CDAO). CDAO has been evaluated for its ability to represent token data sets and to support simple forms of reasoning. With further development, CDAO will provide a basis for tools (for semantic transformation, data retrieval, validation, integration, etc.) that make it easier for software developers and biomedical researchers to apply evolutionary methods of inference to diverse types of data, so as to integrate this powerful framework for reasoning into their research.

Francisco Prosdocimi; Brandon Chisham; Enrico Pontelli; Julie D. Thompson; Arlin Stoltzfus

2009-01-01

296

Initial Implementation of a comparative Data Analysis Ontology  

Directory of Open Access Journals (Sweden)

Full Text Available Comparative analysis is used throughout biology. When entities under comparison (e.g. proteins, genomes, species) are related by descent, evolutionary theory provides a framework that, in principle, allows N-ary comparisons of entities, while controlling for non-independence due to relatedness. Powerful software tools exist for specialized applications of this approach, yet it remains under-utilized in the absence of a unifying informatics infrastructure. A key step in developing such an infrastructure is the definition of a formal ontology. The analysis of use cases and existing formalisms suggests that a significant component of evolutionary analysis involves a core problem of inferring a character history, relying on key concepts: “Operational Taxonomic Units” (OTUs), representing the entities to be compared; “character-state data” representing the observations compared among OTUs; “phylogenetic tree”, representing the historical path of evolution among the entities; and “transitions”, the inferred evolutionary changes in states of characters that account for observations. Using the Web Ontology Language (OWL), we have defined these and other fundamental concepts in a Comparative Data Analysis Ontology (CDAO). CDAO has been evaluated for its ability to represent token data sets and to support simple forms of reasoning. With further development, CDAO will provide a basis for tools (for semantic transformation, data retrieval, validation, integration, etc.) that make it easier for software developers and biomedical researchers to apply evolutionary methods of inference to diverse types of data, so as to integrate this powerful framework for reasoning into their research.

Francisco Prosdocimi; Brandon Chisham; Enrico Pontelli; Julie D. Thompson; Arlin Stoltzfus

2009-01-01

297

Comparative Analysis and Evaluation of Existing Risk Management Software  

Directory of Open Access Journals (Sweden)

Full Text Available The focus of this article lies on the specific features of the existing software packages for risk management differentiating three categories. Representative for these categories we consider the Crystal Ball, Haufe Risikomanager and MIS - Risk Management solutions, outlining the strenghts and weaknesses in a comparative analysis.

Iulia APOSTOL-MAURER

2007-01-01

298

Comparative Analysis of Fare Collection System on Bus Operations  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This study presents a comparative analysis of fare collection systems for inter-city bus operation. One of the important issues in the bus scheduling model is stops of buses in the bus stations (called dwell time -where buses have to stop for boarding and alighting passengers in the bus station). Th...

M.H. Hafezi; A. Ismail; A.A. Shariff

299

COMPARATIVE ANALYSIS OF HEALTH RISK ASSESSMENTS FOR MUNICIPAL WASTE COMBUSTORS  

Science.gov (United States)

Quantitative health risk assessments have been performed for a number of proposed municipal waste combustor (MWC) facilities over the past several years. his article presents the results of a comparative analysis of a total of 21 risk assessments, focusing on seven of the most co...

300

A disaster-severity assessment DSS comparative analysis  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper aims to provide a comparative analysis of fuzzy rule-based systems and some standard statistical and other machine learning techniques in the context of the development of a decision support system (DSS) for the assessment of the severity of natural disasters. This DSS, whichwill be refer...

Tinguaro Rodríguez, Juan; Vitoriano Villanueva, Begoña; Montero de Juan, Francisco Javier; Kecman, Vojislav

 
 
 
 
301

New Software Product Feature Identification: An Analysis of E-mail User Characteristics and Functional Requirements  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Improving the product development process is becoming more important as business environment gets more competitive. This study aims at understanding and characterizing potential users of a software product through idea sharing of users. It also targets to create a new product concept through underst...

Ecehan Sofuoglu; Nuri Basoglu; Tugrul Daim

302

User Interface in the Control Room of the Copenhagen S-Lane: Evaluation and Analysis  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This thesis focuses on the contribution of the current user interface in the management the train traffic system on the Copenhagen S-Lane. The contribution is designed in a form of evaluation, looking at three aspects of the user interface. At ?rst, it evaluates the different characteristics and con...

Ngassa, Jean-Luc

303

New Software Product Feature Identification: An Analysis of E-mail User Characteristics and Functional Requirements  

Directory of Open Access Journals (Sweden)

Full Text Available Improving the product development process is becoming more important as business environment gets more competitive. This study aims at understanding and characterizing potential users of a software product through idea sharing of users. It also targets to create a new product concept through understanding the common features users prefer most. During this product conceptualization stage, the customer ideas are captured through use of a questionnaire. The target users, priority of product functions and features are investigated and the details of the existing e-mail systems as well as of the ideal e-mail systems are identified. Some of the key results included users with demographic differences having different usage and requirements characteristics, expectations of females being higher than those of males and the software functions used and characteristics required being different for those with different job categories or educational backgrounds.

Ecehan Sofuoglu; Nuri Basoglu; Tugrul Daim

2007-01-01

304

An analysis of specialist and non-specialist user requirements for geographic climate change information.  

Science.gov (United States)

The EU EuroClim project developed a system to monitor and record climate change indicator data based on satellite observations of snow cover, sea ice and glaciers in Northern Europe and the Arctic. It also contained projection data for temperature, rainfall and average wind speed for Europe. These were all stored as data sets in a GIS database for users to download. The process of gathering requirements for a user population including scientists, researchers, policy makers, educationalists and the general public is described. Using an iterative design methodology, a user survey was administered to obtain initial feedback on the system concept followed by panel sessions where users were presented with the system concept and a demonstrator to interact with it. The requirements of both specialist and non-specialist users is summarised together with strategies for the effective communication of geographic climate change information. PMID:23642475

Maguire, Martin C

2013-05-02

305

An analysis of specialist and non-specialist user requirements for geographic climate change information.  

UK PubMed Central (United Kingdom)

The EU EuroClim project developed a system to monitor and record climate change indicator data based on satellite observations of snow cover, sea ice and glaciers in Northern Europe and the Arctic. It also contained projection data for temperature, rainfall and average wind speed for Europe. These were all stored as data sets in a GIS database for users to download. The process of gathering requirements for a user population including scientists, researchers, policy makers, educationalists and the general public is described. Using an iterative design methodology, a user survey was administered to obtain initial feedback on the system concept followed by panel sessions where users were presented with the system concept and a demonstrator to interact with it. The requirements of both specialist and non-specialist users is summarised together with strategies for the effective communication of geographic climate change information.

Maguire MC

2013-11-01

306

Comparative analysis of equalization methods for SC-FDMA  

DEFF Research Database (Denmark)

In this paper we introduce comparative analysis for different types of equalization schemes, based on the minimum mean square error (MMSE) optimization. The following types of equalizers were compared: linear equalization, decision feedback equalization (DFE) and turbo equalization. Performance and complexity of these schemes were tested for Single Carrier Frequency Division Multiple Access (SC-FDMA) system with Single Input Single Output (SISO) antenna configuration. SC-FDMA is a common technique, which is used in the UTRA LTE Uplink, so the results of complexity and performance analysis could be applied to find the appropriate equalization algorithm to be used in the Uplink channel of the LTE – the famous standard in 4G telecommunications. Simulation results in the end in this paper show bit error ratio (BER) and modulation error ratio (MER) for compared schemes.

Dogadaev, Anton Konstantinovich; Kozlov, Alexander

2010-01-01

307

Comparative embodied energy analysis to assess green roof sustainability  

Energy Technology Data Exchange (ETDEWEB)

Ecologically engineered ecosystems are now a common strategy for earning green building certification through the Leadership in Energy and Environmental Design (LEED) program as a result of their ability to reduce energy consumption, mitigate greenhouse gas (GHG) emissions, and manage urban storm water. This study evaluated the environmental impact of constructing green roofs. A comparative embodied energy analysis for 2 green engineered roofs was compared with an energy analysis of a traditional modified bitumen roof. Results of the study indicated that the energy use involved in processed materials such as engineered soils can have a significant impact on a product's total sustainability. Methods of quantifying the sustainability of different green engineered technologies were also presented. Results of the study indicated that minimizing materials and replacing heavily processed products will improve the long-term sustainability of green roof products and performance. Tools are needed to quantify and compare the impacts of competing green technologies. 34 refs., 4 tabs., 1 fig.

Schramski, J.R.; Carter, T.L. [Georgia Univ., Athens, GA (United States); Tilley, D.R. [Maryland Univ., Adelphi, MD (United States)

2009-07-01

308

MULSIM/BM: a structural analysis computer program for mine design. user's guide  

Energy Technology Data Exchange (ETDEWEB)

The Bureau of Mines has developed MULSIM/BM, an improved computer program using the boundary element approach for geomechanical analysis of mine plans in single or multiple coal seams. The report presents the improved features of the MULSIM/BM program. The four major improvements are the following: (1) Ability to specify up to 26 material property sets; (2) a new material model capability for gob and inserted materials, such as packwalls or cribs; (3) ability to model a large area with a grid of undivided blocks and to sub-divide only a specified fine-mesh portion of these blocks into elements; and (4) specification of extraction ratios for the undivided blocks. In addition, an interactive-graphics mesh-generator program was written to accompany MULSIM/BM. A complete user's guide and program listings are provided in appendixes to the report. The nine-track computer tape is written at the density of 1600 bits per inch, using unlabeled tape format. The programs are written in ASCII code as 4960 fixed length records or card images, with 80 characters per record.

Beckett, L.A.; Madrid, R.S.

1987-12-01

309

SHEAT: a computer code for probabilistic seismic hazard analysis, user's manual  

International Nuclear Information System (INIS)

The SHEAT code developed at Japan Atomic Energy Research Institute is for probabilistic seismic hazard analysis which is one of the tasks needed for seismic Probabilistic Safety Assessment (PSA) of a nuclear power plant. Seismic hazard is defined as an annual exceedance frequency of occurrence of earthquake ground motions at various levels of intensity at a given site. With the SHEAT code, seismic hazard is calculated by the following two steps: (1) Modeling of earthquake generation around a site. Future earthquake generation (locations, magnitudes and frequencies of postulated earthquakes) is modelled based on the historical earthquake records, active fault data and expert judgement. (2) Calculation of probabilistic seismic hazard at the site. An earthquake ground motion is calculated for each postulated earthquake using an attenuation model taking into account its standard deviation. Then the seismic hazard at the site is calculated by summing the frequencies of ground motions by all the earthquakes. This document is the user's manual of the SHEAT code. It includes: (1) Outlines of the code, which include overall concept, logical process, code structure, data file used and special characteristics of the code, (2) Functions of subprograms and analytical models in them, (3) Guidance of input and output data, and (4) Sample run results. The code has widely been used at JAERI to analyze seismic hazard at various nuclear power plant sites in japan. (author)

1994-01-01

310

Structural network topology revealed by white matter tractography in cannabis users: a graph theoretical analysis.  

Science.gov (United States)

Endocannabinoid receptors modulate synaptic plasticity in the brain and may therefore impact cortical connectivity not only during development but also in response to substance abuse in later life. Such alterations may not be evident in volumetric measures utilized in brain imaging, but could affect the local and global organization of brain networks. To test this hypothesis, we used a novel computational approach to estimate network measures of structural brain connectivity derived from diffusion tensor imaging (DTI) and white matter tractography. Twelve adult cannabis (CB) users and 13 healthy subjects were evaluated using a graph theoretic analysis of both global and local brain network properties. Structural brain networks in both CB subjects and controls exhibited robust small-world network attributes in both groups. However, CB subjects showed significantly decreased global network efficiency and significantly increased clustering coefficients (degree to which nodes tend to cluster around individual nodes). CB subjects also exhibited altered patterns of local network organization in the cingulate region. Among all subjects, schizotypal and impulsive personality characteristics correlated with global efficiency but not with the clustering coefficient. Our data indicate that structural brain networks in CB subjects are less efficiently integrated and exhibit altered regional connectivity. These differences in network properties may reflect physiological processes secondary to substance abuse-induced synaptic plasticity, or differences in brain organization that increase vulnerability to substance use. PMID:22432904

Kim, Dae-Jin; Skosnik, Patrick D; Cheng, Hu; Pruce, Ben J; Brumbaugh, Margaret S; Vollmer, Jennifer M; Hetrick, William P; O'Donnell, Brian F; Sporns, Olaf; Puce, Aina; Newman, Sharlene D

2012-02-24

311

User centric approach to itemset utility mining in Market Basket Analysis  

Directory of Open Access Journals (Sweden)

Full Text Available Business intelligence is information about a company's past performance that is used to help predict the company's future performance. It can reveal emerging trends from which the company might profit [31]. Data mining allows users to sift through the enormous amount of information available in data warehouses; it is from this sifting process that business intelligence gems may be found [31]. Within the area of data mining, the problem of deriving associations from data has received a great deal of attention. This problem is referred as “market-basket problem”. Association Rule Mining (ARM), a well-studied technique in the data mining field, identifies frequent itemsets from databases and generates association rules by assuming that all items have the same significance andfrequency of occurrence in a record. However, items are actually different in many aspects in a number of real applications such as retail marketing, nutritional pattern mining, etc [26]. Rare items are less frequent items [32]. For many real world applications, however, utility of rare itemsets based on cost, profit or revenue is of importance. For extracting rare itemsets, the equal frequency based approaches like Apriori approach suffer from “rare item problem dilemma”. Utility mining aims at identifying rare itemsets with high utility. The main objective of Utility Mining is to identify the itemsets with highest utilities, by considering profit, quantity, costor other user preferences [40]. Also valuable patterns cannot be discovered by traditional non-temporal data mining approaches that treat all the data as one large segment, with no attention paid to utilizing the time information of transactions. Now, as increasingly complex real-world problems are addressed, temporal rare itemset utility problem, are taking center stage. In many real-life applications, high-utility itemsets consist of rare items. Rare itemsets provide useful information in different decision-making domains such as business transactions, medical, security, fraudulenttransactions, and retail communities. For example, in a supermarket, customers purchase microwave ovens or frying pans rarely as compared to bread, washing powder, soap. But the former transactions yield more profit for the supermarket. A retail business may be interested in identifying its most valuable customers i.e. who contribute a major fraction of overall company profit [40]. In this paper, these problems of analyzing market-basket data are considered and important contributions are presented. It is assumed that the utilities of itemsets may differ and determine the high utility itemsets based onboth internal (transaction) and external utilities.

Jyothi Pillai

2011-01-01

312

A user-friendly Matlab program and GUI for the pseudorotation analysis of saturated five-membered ring systems based on scalar coupling constants  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background The advent of combinatorial chemistry has revived the interest in five-membered heterocyclic rings as scaffolds in pharmaceutical research. They are also the target of modifications in nucleic acid chemistry. Hence, the characterization of their conformational features is of considerable interest. This can be accomplished from the analysis of the 3JHH scalar coupling constants. Results A freely available program including an easy-to-use graphical user interface (GUI) has been developed for the calculation of five-membered ring conformations from scalar coupling constant data. A variety of operational modes and parameterizations can be selected by the user, and the coupling constants and electronegativity parameters can be defined interactively. Furthermore, the possibility of generating high-quality graphical output of the conformational space accessible to the molecule under study facilitates the interpretation of the results. These features are illustrated via the conformational analysis of two 4'-thio-2'-deoxynucleoside analogs. Results are discussed and compared with those obtained using the original PSEUROT program. Conclusion A user-friendly Matlab interface has been developed and tested. This should considerably improve the accessibility of this kind of calculations to the chemical community.

Hendrickx Pieter MS; Martins José C

2008-01-01

313

Comparative Study of Data Cluster Analysis for Microarray  

Directory of Open Access Journals (Sweden)

Full Text Available Microarray has been a popular method for representing biological data. Microarray technology allows biologists to monitor genome-wide patterns of gene expression in a high-throughput fashion. Clustering the biological sequences according to their components may reveal the biological functionality among the sequences. Data cluster analysis is an important task in microarray data. There is no clustering algorithm that can be universally used to solve all problems. Therefore in this paper comparative study of data cluster analysis for microarray is presented. Here the most popular cluster algorithms that can be applied for microarray data are discussed. The uncertainty of data, optimization and density estimation are considered for comparison.

Lokesh Kumar Sharma, Sourabh Rungta

2012-01-01

314

Comparative analysis of microbial DNA extraction protocols for groundwater samples.  

UK PubMed Central (United Kingdom)

A comparative analysis of four different DNA extraction protocols was performed to determine the best choice for groundwater microbial diversity studies using temperature gradient gel electrophoresis (TGGE) analysis. The methods used were a chelex-based method, a modified salting out procedure (MSOP), and the commercial kits Epicentre and FastDNA. Both commercial kits exhibited the greatest reproducibility in their methods; however, their band patterns were very different. The protocol that showed the highest diversity was the chelex-based method, and the one that showed the lowest diversity was the FastDNA kit.

Purswani J; Martín-Platero AM; Reboleiro-Rivas P; González-López J; Pozo C

2011-09-01

315

Comparative analysis of microbial DNA extraction protocols for groundwater samples.  

Science.gov (United States)

A comparative analysis of four different DNA extraction protocols was performed to determine the best choice for groundwater microbial diversity studies using temperature gradient gel electrophoresis (TGGE) analysis. The methods used were a chelex-based method, a modified salting out procedure (MSOP), and the commercial kits Epicentre and FastDNA. Both commercial kits exhibited the greatest reproducibility in their methods; however, their band patterns were very different. The protocol that showed the highest diversity was the chelex-based method, and the one that showed the lowest diversity was the FastDNA kit. PMID:21683680

Purswani, Jessica; Martín-Platero, Antonio Manuel; Reboleiro-Rivas, Patricia; González-López, Jesús; Pozo, Clementina

2011-05-27

316

Alcohol: view 2000 - comparative analysis gasoline versus alcohol  

International Nuclear Information System (INIS)

[en] The comparative analysis between alcohol and gas reveals the pros and the cons of the use of each one of those energy sources, taking as a basis an analysis of the world supply and demand of oil, and of PETROBRAS sceneries, including price expectancies for next decade, and the repercussion of PROALCOOL during its existence in the country. Regarding competitiveness, gas and the energy substitute hydrous alcohol are analyzed jointly, as an energy policy for carburetant fuels, taking into account aspects related with both the direct and the indirect cost of each energy source, as well as the benefits provided by then both. (author)

1990-01-01

317

Multifactorial comparative study of spatial point pattern analysis methods.  

UK PubMed Central (United Kingdom)

A way of studying cooperative behaviour of biological entities (proteins, cells, etc.) is by using topographical analysis: the quantification of the spatial patterns formed by the entities considered as points. Five methods of topographical analysis were compared in terms of discriminant power, stability of parameters, methodological bias and algorithms. We tested five methods (nearest neighbour distribution, radial distribution, Voronoï paving, quadrat count, minimal spanning tree graph) which generated nine parameters on four simulated models (random point process, hardcore model and two cluster models) and on experimental cellular models. The method which offers the best discrimination power and stability seems to be the minimal spanning tree graph edge length distribution.

Wallet F; Dussert C

1997-08-01

318

Comparative Genomics via Wavelet Analysis for Closely Related Bacteria  

Directory of Open Access Journals (Sweden)

Full Text Available Comparative genomics has been a valuable method for extracting and extrapolating genome information among closely related bacteria. The efficiency of the traditional methods is extremely influenced by the software method used. To overcome the problem here, we propose using wavelet analysis to perform comparative genomics. First, global comparison using wavelet analysis gives the difference at a quantitative level. Then local comparison using keto-excess or purine-excess plots shows precise positions of inversions, translocations, and horizontally transferred DNA fragments. We firstly found that the level of energy spectra difference is related to the similarity of bacteria strains; it could be a quantitative index to describe the similarities of genomes. The strategy is described in detail by comparisons of closely related strains: S.typhi CT18, S.typhi Ty2, S.typhimurium LT2, H.pylori 26695, and H.pylori J99.

M. Surette; Shu-Lin Liu; Tony Ware; Jiuzhou Song

2004-01-01

319

Development and role of comparative sequence analysis in medical virology  

Directory of Open Access Journals (Sweden)

Full Text Available Introduction. Development of the polymerase chain reaction and deoxyribonucleic acid sequencing techniques has enabled precise identification, classification and taxonomy of viruses. Comparative sequence analysis. Comparative sequence analysis methods can be used in medical virology for many practical purposes. They may be classified into three broad categories: I - reconstruction of genealogical relationships between individual viral isolates for detection and monitoring of sources, reservoirs and modes of viral transmission; II - virus genotyping, that is determination of relationships between genetic types of viruses and their phenotypic properties, which has important implications for immuno-prophylaxis, therapy and prognosis of viral diseases; and III -investigation of functional properties of defined viral sequences, of special importance for explanation of viral pathogenesis and design of antiviral drugs. Future prospects. The combination of DNA sequencing with polymerase chain reaction following reverse transcription with the use of random primers offers a universal means for diagnosis of viral infections. .

Stankov Sr?an

2006-01-01

320

Reactor neutron activation analysis by single comparator method: Ko measurements  

International Nuclear Information System (INIS)

[en] Neutron activation analysis using single comparator has been adapted for multi element analysis in different matrices. Gold was used as comparator. High resolution gamma ray spectrometry was used for measuring radioactivity. Ko factors for fifteen isotopes were measured using this method. Ko values for 111 radioisotopes for the elements from fluorine to uranium were also calculated using latest nuclear data. Good agreement between the experimental and calculated Ko values was obtained. Ratio of the sub-cadmium to epi-cadmium neutron flux which is an important input parameter was measured in different irradiation positions of Apsara reactor. Using this method, macro and micro concentrations of analytes in a geological standard (USGS-W-1) and a few gem samples were determined. (author). 28 refs., 5 tabs., 1 appendix

1995-01-01

 
 
 
 
321

A Review and Analysis of Commercial User Modeling Servers for Personalization on the World Wide Web  

UK PubMed Central (United Kingdom)

The aim of this article is to present and discuss selected commercial user modelingsystems against the background of deployment requirements in real-world environments.Following the recent trend towards personalization on the World Wide Web, these systemsare mainly aimed at supporting e-commerce including customer relationship management.In order to guide and structure our review, we dene a requirements catalogue that comprisesthe main dimensions of functionality, data acquisition, representation, extensibility andexibility, integration of external user-related information, compliance with standards, concernfor privacy, and system architecture. Apart from the novelty of such a comparison both insideand outside the classical user modeling literature, a presentation of the core features of thesecommercial systems may provide a source of information and inspiration for the design,implementation, and deployment of future user modeling systems in research and commercialenvironm...

322

Reading Patterns in Online Documentation: How Transcript Analysis Reflects Text Design, Software Constraints, and User Preferences.  

Science.gov (United States)

Text design and text-delivery software together influence the effectiveness of online computer documentation. To explore this relationship, we analyzed transcripts for a typical month of sessions in which users of a supercomputer network consulted online ...

T. R. Girill C. H. Luk S. Norton

1987-01-01

323

Usability of geographic information - Factors identified from qualitative analysis of task-focused user interviews.  

Science.gov (United States)

Understanding user needs for geographic information and the factors which influence the usability of such information in diverse user contexts is an essential part of user centred development of information products. There is relatively little existing research focused on the design and usability of information products in general. This paper presents a research approach based on semi structured interviews with people working with geographic information on a day to day basis, to establish a reference base of qualitative data on user needs for geographic information with respect to context of use. From this reference data nine key categories of geographic information usability are identified and discussed in the context of limited existing research concerned with geographic information usability. PMID:23321506

Harding, Jenny

2013-01-12

324

Comparative Analysis of Organizational Structures in Industrial Management  

Directory of Open Access Journals (Sweden)

Full Text Available Successful realization of industrial strategy of the industrial enterprise is determined not onlyquality of her preparation and presence of the detailed plan of realization, but also the effective organizationof process of monitoring of her realization. In article various classifications of organizational structures ofmanagement of the industrial enterprises are considered, comparative which economic analysis will allow theiruse as bases of construction of system of monitoring of an economic status of the industrial enterprise.

Daniel Furcila

2011-01-01

325

A comparative analysis of reduced arterial models for hemodynamic monitoring.  

UK PubMed Central (United Kingdom)

We performed a comparative analysis of reduced arterial models. These models are characterized by a few parameters that can be uniquely estimated from the limited measurements often available in practice. Hence, they offer a means to improve hemodynamic monitoring. We specifically describe Windkessel, transmission-line, and recursive difference equation models, show how they are related, pinpoint their capabilities and limitations, and review how we have applied them for less invasive cardiac output monitoring.

Mukkamala R; Gao M

2013-07-01

326

Display Units for Online Passage Retrieval: A Comparative Analysis.  

Science.gov (United States)

Several commercial and governmental computer services now let users retrieve passages online from the full text of books, statutes, or journal articles. The display units in which the test is packaged, however, vary greatly between systems, and these unit...

T. R. Girill

1983-01-01

327

Mapa-an object oriented code with a graphical user interface for accelerator design and analysis  

International Nuclear Information System (INIS)

[en] We developed a code for accelerator modeling which will allow users to create and analyze accelerators through a graphical user interface (GUI). The GUI can read an accelerator from files or create it by adding, removing and changing elements. It also creates 4D orbits and lifetime plots. The code includes a set of accelerator elements classes, C++ utility and GUI libraries. Due to the GUI, the code is easy to use and expand. copyright 1997 American Institute of Physics

1997-01-01

328

Mapa-an object oriented code with a graphical user interface for accelerator design and analysis  

Energy Technology Data Exchange (ETDEWEB)

We developed a code for accelerator modeling which will allow users to create and analyze accelerators through a graphical user interface (GUI). The GUI can read an accelerator from files or create it by adding, removing and changing elements. It also creates 4D orbits and lifetime plots. The code includes a set of accelerator elements classes, C++ utility and GUI libraries. Due to the GUI, the code is easy to use and expand. {copyright} {ital 1997 American Institute of Physics.}

Shasharina, S.G.; Cary, J.R. [Tech-X Corporation 4588 Pussy Willow Court, Boulder, Colorado 80301 (United States)

1997-02-01

329

Mapa-an object oriented code with a graphical user interface for accelerator design and analysis  

International Nuclear Information System (INIS)

[en] We developed a code for accelerator modeling which will allow users to create and analyze accelerators through a graphical user interface (GUI). The GUI can read an accelerator from files or create it by adding, removing and changing elements. It also creates 4D orbits and lifetime plots. The code includes a set of accelerator elements classes, C++ utility and GUI libraries. Due to the GUI, the code is easy to use and expand

1997-02-01

330

Improving wheelchair prescription: an analysis of user needs and existing tools.  

UK PubMed Central (United Kingdom)

Wheelchair users experience many situations that affect the stability and associated performance of their wheelchair. Stability is affected by user characteristics and abilities, environmental features and conditions, and wheelchair modification and accessories. Wheelchair prescribers need effective tools and methods to provide quantitative evaluation and prediction of the behavior of the user-wheelchair system in a variety of static and dynamic situations. Such information is very important to guide efficient management of associated risks and adjust chairs accordingly. This project involves a user-centered approach for design and evaluation of a load cell based wheelchair stability assessment system (Wheel-SAS). Here, the current methods for assessing stability are described, and their shortcomings explained. The user-centered design approach being applied to the development of the associated Wheel-SAS hardware and software is described. Future work including semi-structured interviews and an online survey with wheelchair prescribers and associated healthcare professionals for deriving user requirements and a design specification for a load cell system for measuring dynamic wheelchair stability are detailed.

Moody L; Woodcock A; Heelis M; Chichi C; Fielden S; Stefanov D

2012-01-01

331

Comparative QSAR analysis of cyclo-oxygenase2 inhibiting drugs  

Directory of Open Access Journals (Sweden)

Full Text Available Cyclo-oxygenase 2 (COX2) inhibiting drugs were subjected to comparative quantitative structure activity relationship (QSAR) analysis with an attempt to derive and to understand the relationship between the biological activity and molecular descriptors by multiple regression analysis. The different drugs that inhibit cyclo-oxygenase 2 enzyme were compared instead of subjecting one drug and its derivatives to QSAR analysis. The study was conducted to look for the common structural features between the drugs which confer to a good biological activity. Based on the regression analysis the following descriptors were finalized as the components fitting best in the regression equations: Ss, SCBO, RBN, nN, SIC0, IC1, and H-055. These descriptors belong to constitution (Ss, SCBO, RBN, nN), information indices (SIC0, IC1) and atom centered fragments (H-055) category. Based on these descriptors QSAR models were generated and evaluated for best structure-activity correlation. The model generated from constitution and information indices descriptors corresponds to the essential structural features of the drugs and are found to have significant correlation with COX2 inhibiting activity. This study shall help in rational drug design and synthesis of new selective cyclo-oxygenase 2 inhibitors with predetermined affinity and activity.

Arumugam Mohanapriya; Dayalan Achuthan

2012-01-01

332

GATA: a graphic alignment tool for comparative sequence analysis  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Several problems exist with current methods used to align DNA sequences for comparative sequence analysis. Most dynamic programming algorithms assume that conserved sequence elements are collinear. This assumption appears valid when comparing orthologous protein coding sequences. Functional constraints on proteins provide strong selective pressure against sequence inversions, and minimize sequence duplications and feature shuffling. For non-coding sequences this collinearity assumption is often invalid. For example, enhancers contain clusters of transcription factor binding sites that change in number, orientation, and spacing during evolution yet the enhancer retains its activity. Dot plot analysis is often used to estimate non-coding sequence relatedness. Yet dot plots do not actually align sequences and thus cannot account well for base insertions or deletions. Moreover, they lack an adequate statistical framework for comparing sequence relatedness and are limited to pairwise comparisons. Lastly, dot plots and dynamic programming text outputs fail to provide an intuitive means for visualizing DNA alignments. Results To address some of these issues, we created a stand alone, platform independent, graphic alignment tool for comparative sequence analysis (GATA http://gata.sourceforge.net/). GATA uses the NCBI-BLASTN program and extensive post-processing to identify all small sub-alignments above a low cut-off score. These are graphed as two shaded boxes, one for each sequence, connected by a line using the coordinate system of their parent sequence. Shading and colour are used to indicate score and orientation. A variety of options exist for querying, modifying and retrieving conserved sequence elements. Extensive gene annotation can be added to both sequences using a standardized General Feature Format (GFF) file. Conclusions GATA uses the NCBI-BLASTN program in conjunction with post-processing to exhaustively align two DNA sequences. It provides researchers with a fine-grained alignment and visualization tool aptly suited for non-coding, 0–200 kb, pairwise, sequence analysis. It functions independent of sequence feature ordering or orientation, and readily visualizes both large and small sequence inversions, duplications, and segment shuffling. Since the alignment is visual and does not contain gaps, gene annotation can be added to both sequences to create a thoroughly descriptive picture of DNA conservation that is well suited for comparative sequence analysis.

Nix David A; Eisen Michael B

2005-01-01

333

HYDRA-II: A hydrothermal analysis computer code: Volume 2, User's manual  

Energy Technology Data Exchange (ETDEWEB)

HYDRA-II is a hydrothermal computer code capable of three-dimensional analysis of coupled conduction, convection, and thermal radiation problems. This code is especially appropriate for simulating the steady-state performance of spent fuel storage systems. The code has been evaluated for this application for the US Department of Energy's Commercial Spent Fuel Management Program. HYDRA-II provides a finite-difference solution in cartesian coordinates to the equations governing the conservation of mass, momentum, and energy. A cylindrical coordinate system may also be used to enclose the cartesian coordinate system. This exterior coordinate system is useful for modeling cylindrical cask bodies. The difference equations for conservation of momentum incorporate directional porosities and permeabilities that are available to model solid structures whose dimensions may be smaller than the computational mesh. The equation for conservation of energy permits modeling of orthotropic physical properties and film resistances. Several automated methods are available to model radiation transfer within enclosures and from fuel rod to fuel rod. The documentation of HYDRA-II is presented in three separate volumes. Volume 1 - Equations and Numerics describes the basic differential equations, illustrates how the difference equations are formulated, and gives the solution procedures employed. This volume, Volume 2 - User's Manual, contains code flow charts, discusses the code structure, provides detailed instructions for preparing an input file, and illustrates the operation of the code by means of a sample problem. The final volume, Volume 3 - Verification/Validation Assessments, provides a comparison between the analytical solution and the numerical simulation for problems with a known solution. 6 refs.

McCann, R.A.; Lowery, P.S.; Lessor, D.L.

1987-09-01

334

User`s guide for the Simplified Risk Model (SRM)  

Energy Technology Data Exchange (ETDEWEB)

SRM can be used to quickly compare relative values relating to risk for many environmental management activities or alternatives at US DOE sites. Purpose of this guide is to provide the user with the essential values and decision points for each model variable. The numerical results are useful for ranking and screening purposes and should not be compared directly against absolute risk numerical results such as in CERCLA baseline risk assessments or Safety Analysis Reports. Implementing the SRM entails performing several preliminary steps, selecting values of the risk elements, calculating the risk equations, and checking the results. SRM considers two types of waste management states: inactive (rest) and active (transition). SRM considers risk from exposures to radionuclides and hazardous chemicals, as well as industrial hazards; however this user`s guide does not cover risk from industrial hazards (Section 10 of Eide et al. (1996) must be consulted).

Peatross, R.G.; Eide, S.A.

1996-10-01

335

A meta-analysis comparing laparoscopic partial versus Nissen fundoplication.  

UK PubMed Central (United Kingdom)

BACKGROUND: For proven gastro-oesophageal reflux disease, partial fundoplication is considered as effective as Nissen, but with fewer side effects. The aim of this meta-analysis was to compare the effect of laparoscopic partial fundoplication (LPF) with laparoscopic Nissen fundoplication (LNF). METHODS: Extensive medical literature searches of the PubMed, Medline and Embase databases were performed up to April 2010 for all randomized clinical trials that compared LPF versus LNF. The effect variables analysed were the incidence of post-operative dysphagia, heartburn, inability to belch, outcome or satisfaction and Visick score. Meta-analyses were carried out using odds ratios (ORs) with 95% confidence interval. RESULTS: Thirteen randomized trials were considered suitable for the meta-analysis. A total of 1374 patients underwent LPF or LNF. There was a significant reduction of the incidence of post-operative dysphagia (OR = 0.44, P < 0.0001) and inability to belch (OR = 0.41, P < 0.005) for the LPF compared to that of the LNF group. Compared with LPF, LNF resulted in a significant reduction of the incidence of post-operative heartburn (OR = 1.94, P < 0.01). The outcome or satisfaction of patients and Visick I and II scores were comparable between the two groups. CONCLUSION: Both LPF and LNF are effective for the treatment of proven gastro-oesophageal reflux disease. LPF enables a decreased post-operative dysphagia and gas-related side effects, while LNF is more successful in controlling reflux symptoms, particularly heartburn, than LPF. A balance should be found between anti-reflux and side effects.

Ma S; Qian B; Shang L; Shi R; Zhang G

2012-01-01

336

Comparative transcriptomic analysis of streptococcus pseudopneumoniae with viridans group streptococci  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Streptococcus pseudopneumoniae, is a novel member of the genus Streptococcus, falling close to related members like S. pneumoniae, S. mitis, and S. oralis. Its recent appearance has shed light on streptococcal infections, which has been unclear till recently. In this study, the transcriptome of S. pseudopneumoniae CCUG 49455T was analyzed using the S. pneumoniae R6 microarray platform and compared with those of S. pneumoniae KCTC 5080T, S. mitis KCTC 3556T, and S. oralis KCTC 13048T strains. Results Comparative transcriptome analysis revealed the extent of genetic relatedness among the species, and implies that S. pseudopneumoniae is the most closely related to S. pneumoniae. A total of 489, 444 and 470 genes were upregulated while 347, 484 and 443 were downregulated relative to S. pneumoniae in S. pseudopneumoniae, S. oralis and S. mitis respectively. Important findings were the up-regulation of TCS (two component systems) and transposase which were found to be specific to S. pseudopneumoniae. Conclusions This study provides insight to the current understanding of the genomic content of S. pseudopneumoniae. The comparative transcriptome analysis showed hierarchical clustering of expression data of S. pseudopneumoniae with S. pneumoniae and S. mitis with S. oralis. This proves that transcriptional profiling can facilitate in elucidating the genetic distance between closely related strains.

Park Hee; Myung Soon; Kim Wonyong

2012-01-01

337

OrtholugeDB: a bacterial and archaeal orthology resource for improved comparative genomic analysis.  

UK PubMed Central (United Kingdom)

Prediction of orthologs (homologous genes that diverged because of speciation) is an integral component of many comparative genomics methods. Although orthologs are more likely to have similar function versus paralogs (genes that diverged because of duplication), recent studies have shown that their degree of functional conservation is variable. Also, there are inherent problems with several large-scale ortholog prediction approaches. To address these issues, we previously developed Ortholuge, which uses phylogenetic distance ratios to provide more precise ortholog assessments for a set of predicted orthologs. However, the original version of Ortholuge required manual intervention and was not easily accessible; therefore, we now report the development of OrtholugeDB, available online at http://www.pathogenomics.sfu.ca/ortholugedb. OrtholugeDB provides ortholog predictions for completely sequenced bacterial and archaeal genomes from NCBI based on reciprocal best Basic Local Alignment Search Tool hits, supplemented with further evaluation by the more precise Ortholuge method. The OrtholugeDB web interface facilitates user-friendly and flexible ortholog analysis, from single genes to genomes, plus flexible data download options. We compare Ortholuge with similar methods, showing how it may more consistently identify orthologs with conserved features across a wide range of taxonomic distances. OrtholugeDB facilitates rapid, and more accurate, bacterial and archaeal comparative genomic analysis and large-scale ortholog predictions.

Whiteside MD; Winsor GL; Laird MR; Brinkman FS

2013-01-01

338

Assessment of pharmacodynamic effects following oral administration of crushed morphine sulfate and naltrexone hydrochloride extended-release capsules compared with crushed morphine sulfate controlled-release tablets and placebo in nondependent recreational opioid users.  

UK PubMed Central (United Kingdom)

OBJECTIVES: To compare the pharmacodynamic effects, including self-reports of "drug liking" and "high," of crushed morphine sulfate and naltrexone hydrochloride extended-release capsules (MSN), crushed morphine sulfate controlled-release (CR) tablets, and placebo in an abuse potential study. DESIGN: Randomized, double-blind, placebo-controlled, three-way crossover study. SETTING: Single-center. SUBJECTS: Nondependent recreational opioid users. INTERVENTIONS: Orally administered crushed MSN (120-mg morphine sulfate and 4.8-mg naltrexone hydrochloride), crushed 120-mg morphine sulfate CR, and placebo. OUTCOME MEASURES: Subjective ratings (100-point visual analog scales) of positive drug effects (drug liking, high, good effects, take drug again, and overall drug liking), any effects, and negative effects (bad effects, feel sick, nausea, sleepy, and dizzy), along with pupillometry, pharmacokinetic (PK), and safety assessments. RESULTS: Crushed morphine sulfate CR significantly increased ratings of all positive subjective measures relative to placebo (P?compared with morphine sulfate CR (P???0.005), but significantly increased ratings compared with placebo (P?analysis of morphine plasma concentrations indicated that Cmax was significantly lower and tmax significantly longer for crushed MSN compared with crushed morphine sulfate CR. Plasma concentrations of naltrexone and 6-?-naltrexol were present following crushed MSN. CONCLUSIONS: This study demonstrated that when crushed and administered orally to nondependent recreational opioid users, MSN was associated with significantly lower scores on all positive subjective measures including drug liking and high, and significantly less pupil constriction compared with crushed morphine sulfate CR.

Setnik B; Sommerville K; Goli V; Han L; Webster L

2013-08-01

339

Power Quality Analysis of Photovoltaic Generation Integrated in User-Side Grid  

Directory of Open Access Journals (Sweden)

Full Text Available This paper analyzes impacts of grid-connected photovoltaic power plant on the harmonic current in the power quality aspect of distribution network, Summaries the requirement of harmonic current injecting in grid caused by photovoltaic power plant which connected in user side. Based on the DIgSILENT PowerFactory simulation platform, this paper simulates harmonic current injecting into grid in one case of grid-connected photovoltaic generation and then analyzes it by build models of photovoltaic generation and power grid belonged the user. The result illustrated that the harmonic current caused by user side grid connected photovoltaic generation injecting into grid satisfies standards requirements, the photovoltaic generation system should have 400kvar reactive power regulation capability.

Zhou Chang; Shi Tao

2013-01-01

340

SCAP - a Shaped Charge Analysis Program: user's manual for SCAP 1. 0  

Energy Technology Data Exchange (ETDEWEB)

The basic modeling and format for a shaped charge analysis program, SCAP, is described. The code models the motion of liner elements due to explosive loading, jet formation, jet breakup and target penetration through application of a series of analytical approximations. The structure of the code is intended to provide flexibility in shaped charge device and target configurations and in modeling techniques. The code is designed for interactive use and produces both printed and plotted output. Examples of code output are given and compared with experimental data. 19 refs., 13 figs.

Robinson, A.C.

1985-04-01

 
 
 
 
341

Toehold Purchase Problem: A comparative analysis of two strategies  

CERN Document Server

Toehold purchase, defined here as purchase of one share in a firm by an investor preparing a tender offer to acquire majority of shares in it, reduces by one the number of shares this investor needs for majority. In the paper we construct mathematical models for the toehold and no-toehold strategies and compare the expected profits of the investor and the probabilities of takeover the firm in both strategies. It turns out that the expected profits of the investor in both strategies coincide. On the other hand, the probability of takeover the firm using the toehold strategy is considerably higher comparing to the no-toehold strategy. In the analysis of the models we apply the apparatus of incomplete Beta functions and some refined bounds for central binomial coefficients.

Banakh, Taras

2012-01-01

342

DNA sequence copy number analysis by Comparative Genomic Hybridization (CGH)  

Energy Technology Data Exchange (ETDEWEB)

Comparative Genomic Hybridization (CGH) uses the kinetics of in situ hybridization to compare the copy numbers of different DNA sequences within the same genome and the copy numbers of the same sequences among different genomes. In a typical application genomic DNA from a tumor and from normal cells are differentially labeled and simultaneously hybridized to normal metaphase chromosomes, and detected with different fluorochromes. Properly registered images of each fluorochrome are obtained using a microscope equipped with multi-band filters and a CCD camera. Digital image analysis permits measurement of intensity ratio profiles along each of the target chromosomes. Studies of cells with known aberrations indicate that the intensity ratio at each position is proportional to the ratio of the copy numbers of the sequences that bind there in the tumor and normal genomes. Analytical challenges posed by the need to efficiently obtain copy number karyotypes are discussed.

Pinkel, D.; Kallioniemi, A.; Kallioniemi, O.; Waldman, F.; Sudar, D.; Gray, I. (Univ. of California, San Francisco (United States)); Rutovitz, D.; Piper, I. (MRC Edinburgh (United Kingdom))

1993-01-01

343

Initial sequencing and comparative analysis of the mouse genome  

Energy Technology Data Exchange (ETDEWEB)

The sequence of the mouse genome is a key informational tool for understanding the contents of the human genome and a key experimental tool for biomedical research. Here, we report the results of an international collaboration to produce a high-quality draft sequence of the mouse genome. We also present an initial comparative analysis of the mouse and human genomes, describing some of the insights that can be gleaned from the two sequences. We discuss topics including the analysis of the evolutionary forces shaping the size, structure and sequence of the genomes; the conservation of large-scale synteny across most of the genomes; the much lower extent of sequence orthology covering less than half of the genomes; the proportions of the genomes under selection; the number of protein-coding genes; the expansion of gene families related to reproduction and immunity; the evolution of proteins; and the identification of intraspecies polymorphism.

Waterston, Robert H.; Lindblad-Toh, Kerstin; Birney, Ewan; Rogers, Jane; Abril, Josep F.; Agarwal, Pankaj; Agarwala, Richa; Ainscough, Rachel; Alexandersson, Marina; An, Peter; Antonarakis, Stylianos E.; Attwood, John; Baertsch, Robert; Bailey, Jonathon; Barlow, Karen; Beck, Stephan; Berry, Eric; Birren, Bruce; Bloom, Toby; Bork, Peer; Botcherby, Marc; Bray, Nicolas; Brent, Michael R.; Brown, Daniel G.; Brown, Stephen D.; Bult, Carol; Burton, John; Butler, Jonathan; Campbell, Robert D.; Carninci, Piero; Cawley, Simon; Chiaromonte, Francesca; Chinwalla, Asif T.; Church, Deanna M.; Clamp, Michele; Clee, Christopher; Collins, Francis S.; Cook, Lisa L.; Copley, Richard R.; Coulson, Alan; Couronne, Olivier; Cuff, James; Curwen, Val; Cutts, Tim; Daly, Mark; David, Robert; Davies, Joy; Delehaunty, Kimberly D.; Deri, Justin; Dermitzakis, Emmanouil T.; Dewey, Colin; Dickens, Nicholas J.; Diekhans, Mark; Dodge, Sheila; Dubchak, Inna; Dunn, Diane M.; Eddy, Sean R.; Elnitski, Laura; Emes, Richard D.; Eswara, Pallavi; Eyras, Eduardo; Felsenfeld, Adam; Fewell, Ginger A.; Flicek, Paul; Foley, Karen; Frankel, Wayne N.; Fulton, Lucinda A.; Fulton, Robert S.; Furey, Terrence S.; Gage, Diane; Gibbs, Richard A.; Glusman, Gustavo; Gnerre, Sante; Goldman, Nick; Goodstadt, Leo; Grafham, Darren; Graves, Tina A.; Green, Eric D.; Gregory, Simon; Guigo, Roderic; Guyer, Mark; Hardison, Ross C.; Haussler, David; Hayashizaki, Yoshihide; Hillier, LaDeana W.; Hinrichs, Angela; Hlavina, Wratko; Holzer, Timothy; Hsu, Fan; Hua, Axin; Hubbard, Tim; Hunt, Adrienne; Jackson, Ian; Jaffe, David B.; Johnson, L. Steven; Jones, Matthew; Jones, Thomas A.; Joy, Ann; Kamal, Michael; Karlsson, Elinor K.; Karolchik, Donna; Kasprzyk, Arkadiusz; Kawai, Jun; Keibler, Evan; Kells, Cristyn; Kent, W. James; Kirby, Andrew; Kolbe, Diana L.; Korf, Ian; Kucherlapati, Raju S.; Kulbokas III, Edward J.; Kulp, David; Landers, Tom; Leger, J.P.; Leonard, Steven; Letunic, Ivica; Levine, Rosie; et al.

2002-12-15

344

Initial sequencing and comparative analysis of the mouse genome.  

UK PubMed Central (United Kingdom)

The sequence of the mouse genome is a key informational tool for understanding the contents of the human genome and a key experimental tool for biomedical research. Here, we report the results of an international collaboration to produce a high-quality draft sequence of the mouse genome. We also present an initial comparative analysis of the mouse and human genomes, describing some of the insights that can be gleaned from the two sequences. We discuss topics including the analysis of the evolutionary forces shaping the size, structure and sequence of the genomes; the conservation of large-scale synteny across most of the genomes; the much lower extent of sequence orthology covering less than half of the genomes; the proportions of the genomes under selection; the number of protein-coding genes; the expansion of gene families related to reproduction and immunity; the evolution of proteins; and the identification of intraspecies polymorphism.

Waterston RH; Lindblad-Toh K; Birney E; Rogers J; Abril JF; Agarwal P; Agarwala R; Ainscough R; Alexandersson M; An P; Antonarakis SE; Attwood J; Baertsch R; Bailey J; Barlow K; Beck S; Berry E; Birren B; Bloom T; Bork P; Botcherby M; Bray N; Brent MR; Brown DG; Brown SD; Bult C; Burton J; Butler J; Campbell RD; Carninci P; Cawley S; Chiaromonte F; Chinwalla AT; Church DM; Clamp M; Clee C; Collins FS; Cook LL; Copley RR; Coulson A; Couronne O; Cuff J; Curwen V; Cutts T; Daly M; David R; Davies J; Delehaunty KD; Deri J; Dermitzakis ET; Dewey C; Dickens NJ; Diekhans M; Dodge S; Dubchak I; Dunn DM; Eddy SR; Elnitski L; Emes RD; Eswara P; Eyras E; Felsenfeld A; Fewell GA; Flicek P; Foley K; Frankel WN; Fulton LA; Fulton RS; Furey TS; Gage D; Gibbs RA; Glusman G; Gnerre S; Goldman N; Goodstadt L; Grafham D; Graves TA; Green ED; Gregory S; Guigó R; Guyer M; Hardison RC; Haussler D; Hayashizaki Y; Hillier LW; Hinrichs A; Hlavina W; Holzer T; Hsu F; Hua A; Hubbard T; Hunt A; Jackson I; Jaffe DB; Johnson LS; Jones M; Jones TA; Joy A; Kamal M; Karlsson EK; Karolchik D; Kasprzyk A; Kawai J; Keibler E; Kells C; Kent WJ; Kirby A; Kolbe DL; Korf I; Kucherlapati RS; Kulbokas EJ; Kulp D; Landers T; Leger JP; Leonard S; Letunic I; Levine R; Li J; Li M; Lloyd C; Lucas S; Ma B; Maglott DR; Mardis ER; Matthews L; Mauceli E; Mayer JH; McCarthy M; McCombie WR; McLaren S; McLay K; McPherson JD; Meldrim J; Meredith B; Mesirov JP; Miller W; Miner TL; Mongin E; Montgomery KT; Morgan M; Mott R; Mullikin JC; Muzny DM; Nash WE; Nelson JO; Nhan MN; Nicol R; Ning Z; Nusbaum C; O'Connor MJ; Okazaki Y; Oliver K; Overton-Larty E; Pachter L; Parra G; Pepin KH; Peterson J; Pevzner P; Plumb R; Pohl CS; Poliakov A; Ponce TC; Ponting CP; Potter S; Quail M; Reymond A; Roe BA; Roskin KM; Rubin EM; Rust AG; Santos R; Sapojnikov V; Schultz B; Schultz J; Schwartz MS; Schwartz S; Scott C; Seaman S; Searle S; Sharpe T; Sheridan A; Shownkeen R; Sims S; Singer JB; Slater G; Smit A; Smith DR; Spencer B; Stabenau A; Stange-Thomann N; Sugnet C; Suyama M; Tesler G; Thompson J; Torrents D; Trevaskis E; Tromp J; Ucla C; Ureta-Vidal A; Vinson JP; Von Niederhausern AC; Wade CM; Wall M; Weber RJ; Weiss RB; Wendl MC; West AP; Wetterstrand K; Wheeler R; Whelan S; Wierzbowski J; Willey D; Williams S; Wilson RK; Winter E; Worley KC; Wyman D; Yang S; Yang SP; Zdobnov EM; Zody MC; Lander ES

2002-12-01

345

Initial sequencing and comparative analysis of the mouse genome.  

Science.gov (United States)

The sequence of the mouse genome is a key informational tool for understanding the contents of the human genome and a key experimental tool for biomedical research. Here, we report the results of an international collaboration to produce a high-quality draft sequence of the mouse genome. We also present an initial comparative analysis of the mouse and human genomes, describing some of the insights that can be gleaned from the two sequences. We discuss topics including the analysis of the evolutionary forces shaping the size, structure and sequence of the genomes; the conservation of large-scale synteny across most of the genomes; the much lower extent of sequence orthology covering less than half of the genomes; the proportions of the genomes under selection; the number of protein-coding genes; the expansion of gene families related to reproduction and immunity; the evolution of proteins; and the identification of intraspecies polymorphism. PMID:12466850

Waterston, Robert H; Lindblad-Toh, Kerstin; Birney, Ewan; Rogers, Jane; Abril, Josep F; Agarwal, Pankaj; Agarwala, Richa; Ainscough, Rachel; Alexandersson, Marina; An, Peter; Antonarakis, Stylianos E; Attwood, John; Baertsch, Robert; Bailey, Jonathon; Barlow, Karen; Beck, Stephan; Berry, Eric; Birren, Bruce; Bloom, Toby; Bork, Peer; Botcherby, Marc; Bray, Nicolas; Brent, Michael R; Brown, Daniel G; Brown, Stephen D; Bult, Carol; Burton, John; Butler, Jonathan; Campbell, Robert D; Carninci, Piero; Cawley, Simon; Chiaromonte, Francesca; Chinwalla, Asif T; Church, Deanna M; Clamp, Michele; Clee, Christopher; Collins, Francis S; Cook, Lisa L; Copley, Richard R; Coulson, Alan; Couronne, Olivier; Cuff, James; Curwen, Val; Cutts, Tim; Daly, Mark; David, Robert; Davies, Joy; Delehaunty, Kimberly D; Deri, Justin; Dermitzakis, Emmanouil T; Dewey, Colin; Dickens, Nicholas J; Diekhans, Mark; Dodge, Sheila; Dubchak, Inna; Dunn, Diane M; Eddy, Sean R; Elnitski, Laura; Emes, Richard D; Eswara, Pallavi; Eyras, Eduardo; Felsenfeld, Adam; Fewell, Ginger A; Flicek, Paul; Foley, Karen; Frankel, Wayne N; Fulton, Lucinda A; Fulton, Robert S; Furey, Terrence S; Gage, Diane; Gibbs, Richard A; Glusman, Gustavo; Gnerre, Sante; Goldman, Nick; Goodstadt, Leo; Grafham, Darren; Graves, Tina A; Green, Eric D; Gregory, Simon; Guigó, Roderic; Guyer, Mark; Hardison, Ross C; Haussler, David; Hayashizaki, Yoshihide; Hillier, LaDeana W; Hinrichs, Angela; Hlavina, Wratko; Holzer, Timothy; Hsu, Fan; Hua, Axin; Hubbard, Tim; Hunt, Adrienne; Jackson, Ian; Jaffe, David B; Johnson, L Steven; Jones, Matthew; Jones, Thomas A; Joy, Ann; Kamal, Michael; Karlsson, Elinor K; Karolchik, Donna; Kasprzyk, Arkadiusz; Kawai, Jun; Keibler, Evan; Kells, Cristyn; Kent, W James; Kirby, Andrew; Kolbe, Diana L; Korf, Ian; Kucherlapati, Raju S; Kulbokas, Edward J; Kulp, David; Landers, Tom; Leger, J P; Leonard, Steven; Letunic, Ivica; Levine, Rosie; Li, Jia; Li, Ming; Lloyd, Christine; Lucas, Susan; Ma, Bin; Maglott, Donna R; Mardis, Elaine R; Matthews, Lucy; Mauceli, Evan; Mayer, John H; McCarthy, Megan; McCombie, W Richard; McLaren, Stuart; McLay, Kirsten; McPherson, John D; Meldrim, Jim; Meredith, Beverley; Mesirov, Jill P; Miller, Webb; Miner, Tracie L; Mongin, Emmanuel; Montgomery, Kate T; Morgan, Michael; Mott, Richard; Mullikin, James C; Muzny, Donna M; Nash, William E; Nelson, Joanne O; Nhan, Michael N; Nicol, Robert; Ning, Zemin; Nusbaum, Chad; O'Connor, Michael J; Okazaki, Yasushi; Oliver, Karen; Overton-Larty, Emma; Pachter, Lior; Parra, Genís; Pepin, Kymberlie H; Peterson, Jane; Pevzner, Pavel; Plumb, Robert; Pohl, Craig S; Poliakov, Alex; Ponce, Tracy C; Ponting, Chris P; Potter, Simon; Quail, Michael; Reymond, Alexandre; Roe, Bruce A; Roskin, Krishna M; Rubin, Edward M; Rust, Alistair G; Santos, Ralph; Sapojnikov, Victor; Schultz, Brian; Schultz, Jörg; Schwartz, Matthias S; Schwartz, Scott; Scott, Carol; Seaman, Steven; Searle, Steve; Sharpe, Ted; Sheridan, Andrew; Shownkeen, Ratna; Sims, Sarah; Singer, Jonathan B; Slater, Guy; Smit, Arian; Smith, Douglas R; Spencer, Brian; Stabenau, Arne; Stange-Thomann, Nicole; Sugnet, Charles; Suyama, Mikita; Tesler, Glenn; Thompson, Johanna; Torrents, David; Trevaskis, Evanne; Tromp, John; Ucla, Catherine; Ureta-Vidal, Abel; Vinson, Jade P; Von Niederhausern, Andrew C; Wade, Claire M; Wall, Melanie; Weber, Ryan J; Weiss, Robert B; Wendl, Michael C; West, Anthony P; Wetterstrand, Kris; Wheeler, Raymond; Whelan, Simon; Wierzbowski, Jamey; Willey, David; Williams, Sophie; Wilson, Richard K; Winter, Eitan; Worley, Kim C; Wyman, Dudley; Yang, Shan; Yang, Shiaw-Pyng; Zdobnov, Evgeny M; Zody, Michael C; Lander, Eric S

2002-12-01

346

Comparative computational analysis of ADP Glucose Pyrophosphorylase in plants  

Directory of Open Access Journals (Sweden)

Full Text Available ADP-glucose pyrophosphorylase (AGPase), a key enzyme involved in higher plant starch biosynthesis, is composed of pairs of large (LS) and small subunits (SS). Ample evidence has shown that the AGPase catalyzes the rate limiting step in starch biosynthesis in higher plants. In this study, we compiled detailed comparative information about ADP glucose pyrophosphorylase in selected plants by analyzing their structural features e.g. amino acid content, physico-chemical properties, secondary structural features and phylogenetic classification. Functional analysis of these proteins includes identification of important 10 to 20 amino acids long motifs arise because specific residues and regions proved to be important for the biological function of a group of proteins, which are conserved in both structure and sequence during evolution. Phylogenetic analysis depicts two main clusters. Cluster I encompasses large subunits (LS) while cluster II contains small subunits (SS).

Saroj Rani; Pradeep Sharma; Anil Sharma; Ravish Chatrath

2013-01-01

347

The DNA sequence and comparative analysis of human chromosome 20.  

Science.gov (United States)

The finished sequence of human chromosome 20 comprises 59,187,298 base pairs (bp) and represents 99.4% of the euchromatic DNA. A single contig of 26 megabases (Mb) spans the entire short arm, and five contigs separated by gaps totalling 320 kb span the long arm of this metacentric chromosome. An additional 234,339 bp of sequence has been determined within the pericentromeric region of the long arm. We annotated 727 genes and 168 pseudogenes in the sequence. About 64% of these genes have a 5' and a 3' untranslated region and a complete open reading frame. Comparative analysis of the sequence of chromosome 20 to whole-genome shotgun-sequence data of two other vertebrates, the mouse Mus musculus and the puffer fish Tetraodon nigroviridis, provides an independent measure of the efficiency of gene annotation, and indicates that this analysis may account for more than 95% of all coding exons and almost all genes. PMID:11780052

Deloukas, P; Matthews, L H; Ashurst, J; Burton, J; Gilbert, J G; Jones, M; Stavrides, G; Almeida, J P; Babbage, A K; Bagguley, C L; Bailey, J; Barlow, K F; Bates, K N; Beard, L M; Beare, D M; Beasley, O P; Bird, C P; Blakey, S E; Bridgeman, A M; Brown, A J; Buck, D; Burrill, W; Butler, A P; Carder, C; Carter, N P; Chapman, J C; Clamp, M; Clark, G; Clark, L N; Clark, S Y; Clee, C M; Clegg, S; Cobley, V E; Collier, R E; Connor, R; Corby, N R; Coulson, A; Coville, G J; Deadman, R; Dhami, P; Dunn, M; Ellington, A G; Frankland, J A; Fraser, A; French, L; Garner, P; Grafham, D V; Griffiths, C; Griffiths, M N; Gwilliam, R; Hall, R E; Hammond, S; Harley, J L; Heath, P D; Ho, S; Holden, J L; Howden, P J; Huckle, E; Hunt, A R; Hunt, S E; Jekosch, K; Johnson, C M; Johnson, D; Kay, M P; Kimberley, A M; King, A; Knights, A; Laird, G K; Lawlor, S; Lehvaslaiho, M H; Leversha, M; Lloyd, C; Lloyd, D M; Lovell, J D; Marsh, V L; Martin, S L; McConnachie, L J; McLay, K; McMurray, A A; Milne, S; Mistry, D; Moore, M J; Mullikin, J C; Nickerson, T; Oliver, K; Parker, A; Patel, R; Pearce, T A; Peck, A I; Phillimore, B J; Prathalingam, S R; Plumb, R W; Ramsay, H; Rice, C M; Ross, M T; Scott, C E; Sehra, H K; Shownkeen, R; Sims, S; Skuce, C D; Smith, M L; Soderlund, C; Steward, C A; Sulston, J E; Swann, M; Sycamore, N; Taylor, R; Tee, L; Thomas, D W; Thorpe, A; Tracey, A; Tromans, A C; Vaudin, M; Wall, M; Wallis, J M; Whitehead, S L; Whittaker, P; Willey, D L; Williams, L; Williams, S A; Wilming, L; Wray, P W; Hubbard, T; Durbin, R M; Bentley, D R; Beck, S; Rogers, J

348

Comparative Analysis of Methods and Tools for Nuclear Knowledge Preservation  

International Nuclear Information System (INIS)

This publication draws on the results of a coordinated research project (CRP) on comparative analysis of methods and tools for knowledge preservation in nuclear organizations. The CRP was initiated by the IAEA in order to enhance the capacity of Member States to maintain and preserve the information and knowledge resources related to the peaceful uses of nuclear energy. The project participants explored methods and tools used to capture, interpret, analyse and disseminate data and information, as well as the knowledge ultimately derived from them. Furthermore, a survey tool on the current status of knowledge preservation in nuclear and supporting organizations was developed. The analysis of the survey served as a basis for the recommendations and conclusions on good practices in knowledge preservation. This publication represents the final report of the CRP. The reports of national organizations are presented on this CD-ROM.

2011-01-01

349

Comparative computational analysis of ADP Glucose Pyrophosphorylase in plants.  

UK PubMed Central (United Kingdom)

ADP-glucose pyrophosphorylase (AGPase), a key enzyme involved in higher plant starch biosynthesis, is composed of pairs of large (LS) and small subunits (SS). Ample evidence has shown that the AGPase catalyzes the rate limiting step in starch biosynthesis in higher plants. In this study, we compiled detailed comparative information about ADP glucose pyrophosphorylase in selected plants by analyzing their structural features e.g. amino acid content, physico-chemical properties, secondary structural features and phylogenetic classification. Functional analysis of these proteins includes identification of important 10 to 20 amino acids long motifs arise because specific residues and regions proved to be important for the biological function of a group of proteins, which are conserved in both structure and sequence during evolution. Phylogenetic analysis depicts two main clusters. Cluster I encompasses large subunits (LS) while cluster II contains small subunits (SS).

Rani S; Sharma P; Sharma A; Chatrath R

2013-01-01

350

Establishing a framework for comparative analysis of genome sequences  

Energy Technology Data Exchange (ETDEWEB)

This paper describes a framework and a high-level language toolkit for comparative analysis of genome sequence alignment The framework integrates the information derived from multiple sequence alignment and phylogenetic tree (hypothetical tree of evolution) to derive new properties about sequences. Multiple sequence alignments are treated as an abstract data type. Abstract operations have been described to manipulate a multiple sequence alignment and to derive mutation related information from a phylogenetic tree by superimposing parsimonious analysis. The framework has been applied on protein alignments to derive constrained columns (in a multiple sequence alignment) that exhibit evolutionary pressure to preserve a common property in a column despite mutation. A Prolog toolkit based on the framework has been implemented and demonstrated on alignments containing 3000 sequences and 3904 columns.

Bansal, A.K.

1995-06-01

351

Comparative analysis of some soil compaction measurement techniques  

Directory of Open Access Journals (Sweden)

Full Text Available There is a need to properly define soil compaction as one of the complex soil characteristics relevant to agriculture since it greatly influences plant growth and energy consumption. The level of soil compaction may be described by many, well known, parameters, which also can be comparatively analysed according to its sensitivity and ability to describe soil reaction to the applied load. This paper presents a specific analysis of soil compaction measurement methods based on laboratory testing. The sensitivity of usual compaction parameters such as tire sinkage, cone index and soil bulk density, as well as needle penetration were taken into consideration. The paper also includes the critical analysis of different measurement techniques and its possibility to be a source of valuable agricultural information.

D. Ronai; I. Shmulevich

1995-01-01

352

Peace Negotiations in the Third World: A Comparative Analysis  

Directory of Open Access Journals (Sweden)

Full Text Available In this article the negotiations and peace processes in the Third World are analized from a comparative viewpoint in order to focus in on the case of Centroamerica. Reference is made to the special features and common elements of those peace processes in otherregions of the Third World and they are compared to those which have taken place in Centroamerica. It is a retrospective and comparative analysis. For this reason, the author has decided to carry out a brief typology of those conflicts offered by Centroamerica: inNicaragua, El Salvador and Guatemala. Later, the author goes on to analyse the most relevant peace and negotiation processes involving the Third World including one or two from Latin America: the cases of Panama, Afghanistan, Iran-Iraq, Colombia, southern Africa (South Africa, Namibia and Angola) and Cambodia. Later, the author goes overthe peace process periods in Centroamerica and the temporary contradictions which are presented by internal conflict, regional conflict and geopolitical conflict. Finally, a comparative methodological exercise is carried out which allows to focus on modes of implementation of the peace processes.

Raúl Benítez Manaut

1995-01-01

353

Performance Analysis of Multi-user Multi Input Multi Output- Interleave-Division Multiple-Access System Employing Turbo Coding with Multi-User Detection over Frequency-Selective Wireless Communication Channel  

Directory of Open Access Journals (Sweden)

Full Text Available Problem statement: This study presents the performance analysis of multi-user Multi Input Multi Output (MIMO) assisted interleave based multiple-access system. In IDMA, different interleavers are used to distinguish users as against different signature sequence in a conventional code-Division Multiple-Access (CDMA) scheme. Approach: The basic principle of IDMA is that the interleaver is unique for the users. Results: In this study, we consider that Interleavers are generated independently and randomly. Also the IDMA technique is extended to multi user MIMO IDMA with multi-user detection. At the receiver, OSIC detector is realized using ZF for frequency fading channel to combat MAI and MUI problem. The performance of the system is analyzed for different channel conditions using extensive simulation runs based on Monte Carlo simulation trials. Conclusion: It is shown that the IDMA scheme can achieve near single user performance in situations with very large numbers of users while maintaining very low receiver complexity. It is discerned from the computer simulation results that IDMA outperforms CDMA in frequency selective channel for high load conditions.

Kuttathatti S. Vishvaksenan; R. Seshasayanan; Yuvaraj Krishnamoorthy

2011-01-01

354

Comparative thermodynamic analysis of dual cycle under alternative conditions  

Directory of Open Access Journals (Sweden)

Full Text Available In this paper, finite-time thermodynamic analysis of an air-standard internal-combustion Dual cycle is performed. Maximum power (MP), maximum power density (MPD), maximum efficient power (MEP) which are three alternative performance criteria are derived. The effects of the design parameters such as volume ratio and extreme temperature ratio of the cycle have been investigated under MP, MPD and MEP conditions. The analyzed results of air-standard internal-combustion Dual cycle showed the design parameters at maximum power (MP) conditions and maximum efficient power (MEP) conditions have a significant advantage compared to maximum power density (MPD) criterion.

Atmaca Mustafa; Gümü? Metin; Demir Abdullah

2011-01-01

355

Comparative analysis of electrochemical systems for nitrogen storage  

Energy Technology Data Exchange (ETDEWEB)

Comparative analysis of the characteristics of electrochemical systems for storage and generation of nitrogen based on a hydrazine electrolyzer, a hydrogen peroxide-hydrazine generator, oxygen-hydrazine generator and gas tank storage system was carried out. Areas of preferable application of the systems as a function of operating conditions were found. The use of a generator based on an electrolyzer is feasible in the short-term or pulsed mode and also for the case when byproducts are not utilized. The use of a hydrogen peroxide-hydrazine generator is limited by its operating life. Deposited at VINITI on 19 February 1985, No. 1313-85 Dep. 5 references.

Grigorev, V.F.; Nesterov, B.P.

1985-10-01

356

[PSA-based screening for prostate cancer: a comparative analysis].  

UK PubMed Central (United Kingdom)

PSA-based screening has always been one of the controversial topics among urological researchers. In spite of its benefit in detecting early prostate cancer, PSA-based screening may not only result in widespread overdiagnosis and overtreatment of an often indolent disease, which is life-threatening in only a minority of patients, but also subject participators to such complications as erectile dysfunction and incontinence. Besides, whether PSA-based screening can reduce prostate cancer specific mortality has received considerable attention. This review offers a comparative analysis of recent studies on PSA-based screening for prostate cancer.

Cao WL; Sun FK

2013-06-01

357

Comparative Analysis of Numerical Methods for Parameter Determination  

CERN Document Server

We made a comparative analysis of numerical methods for multidimensional optimization. The main parameter is a number of computations of the test function to reach necessary accuracy, as it is computationally "slow". For complex functions, analytic differentiation by many parameters can cause problems associated with a significant complication of the program and thus slowing its operation. For comparison, we used the methods: "brute force" (or minimization on a regular grid), Monte Carlo, steepest descent, conjugate gradients, Brent's method (golden section search), parabolic interpolation etc. The Monte-Carlo method was applied to the eclipsing binary system AM Leo.

Andronov, Ivan L

2013-01-01

358

Comparative analysis of evaluation techniques for transport policies  

International Nuclear Information System (INIS)

The objective of this paper is to examine and compare the use of a number of policy evaluation tools, which can be used to measure the impact of transport policies and programmes as part of a strategic environmental assessment (SEA) or sustainability appraisal. The evaluation tools that were examined include cost-benefit analysis (CBA), cost-effectiveness analysis (CEA) and multi-criteria decision analysis (MCDA). It was concluded that both CEA and CBA are useful for estimating the costs and/or benefits associated with transport policies but are constrained by the difficulty in quantifying non-market impacts and monetising total costs and benefits. Furthermore, CEA is limited to identifying the most 'cost-effective policy' for achieving a single, narrowly defined objective, usually greenhouse gas (GHG) reduction and is, therefore, not suitable for evaluating policy options with ancillary costs or a variety of potential benefits. Thus, CBA or CEA evaluation should be complemented by a complete environmental and socio-economic impact assessment approach such as MCDA. This method allows for participatory analysis and qualitative assessment but is subject to caveats such as subjectivity and value-laden judgments.

2011-01-01

359

Reading patterns in online documentation: How transcript analysis reflects text design, software constraints, and user preferences  

Energy Technology Data Exchange (ETDEWEB)

Text design and text-delivery software together influence the effectiveness of online computer documentation. To explore this relationship, we analyzed transcripts for a typical month of sessions in which users of a supercomputer network consulted online documentation by means of very flexible software. We found that most readers displayed relatively small passages from single documents, often checking a subject index to select those passages. This strong reference-reading pattern confirms and clarifies results from other, more limited studies of online text use. The reference pattern appears even stronger when users accessed task-oriented documents that included many examples.

Girill, T.R.; Luk, C.H.; Norton, S.

1987-02-01

360

Microarray ? US: a user-friendly graphical interface to Bioconductor tools that enables accurate microarray data analysis and expedites comprehensive functional analysis of microarray results  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Microarray data analysis presents a significant challenge to researchers who are unable to use the powerful Bioconductor and its numerous tools due to their lack of knowledge of R language. Among the few existing software programs that offer a graphic user interface to Bioconductor packages, none have implemented a comprehensive strategy to address the accuracy and reliability issue of microarray data analysis due to the well known probe design problems associated with many widely used microarray chips. There is also a lack of tools that would expedite the functional analysis of microarray results. Findings We present Microarray ? US, an R-based graphical user interface that implements over a dozen popular Bioconductor packages to offer researchers a streamlined workflow for routine differential microarray expression data analysis without the need to learn R language. In order to enable a more accurate analysis and interpretation of microarray data, we incorporated the latest custom probe re-definition and re-annotation for Affymetrix and Illumina chips. A versatile microarray results output utility tool was also implemented for easy and fast generation of input files for over 20 of the most widely used functional analysis software programs. Conclusion Coupled with a well-designed user interface, Microarray ? US leverages cutting edge Bioconductor packages for researchers with no knowledge in R language. It also enables a more reliable and accurate microarray data analysis and expedites downstream functional analysis of microarray results.

Dai Yilin; Guo Ling; Li Meng; Chen Yi-Bu

2012-01-01

 
 
 
 
361

Comparative Analysis of Probabilistic Models for Activity Recognition with an Instrumented Walker  

CERN Multimedia

Rollating walkers are popular mobility aids used by older adults to improve balance control. There is a need to automatically recognize the activities performed by walker users to better understand activity patterns, mobility issues and the context in which falls are more likely to happen. We design and compare several techniques to recognize walker related activities. A comprehensive evaluation with control subjects and walker users from a retirement community is presented.

Omar, Farheen; Truszkowski, Jakub; Poupart, Pascal; Tung, James; Caine, Allen

2012-01-01

362

Microarray ? US: a user-friendly graphical interface to Bioconductor tools that enables accurate microarray data analysis and expedites comprehensive functional analysis of microarray results  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract Background Microarray data analysis presents a significant challenge to researchers who are unable to use the powerful Bioconductor and its numerous tools due to their lack of knowledge of R language. Among the few existing software programs that offer a graphic user interf...

Dai Yilin; Guo Ling; Li Meng; Chen Yi-Bu

363

Comparative Analysis of Congestion Control Algorithms Using ns-2  

Directory of Open Access Journals (Sweden)

Full Text Available In order to curtail the escalating packet loss rates caused by an exponential increase in network traffic, active queue management techniques such as Random Early Detection (RED) have come into picture. Flow Random Early Drop (FRED) keeps state based on instantaneous queue occupancy of a given flow. FRED protects fragile flows by deterministically accepting flows from low bandwidth connections and fixes several shortcomings of RED by computing queue length during both arrival and departure of the packet. Stochastic Fair Queuing (SFQ) ensures fair access to network resources and prevents a busty flow from consuming more than its fair share. In case of (Random Exponential Marking) REM, the key idea is to decouple congestion measure from performance measure (loss, queue length or delay). Stabilized RED (SRED) is another approach of detecting nonresponsive flows. In this paper, we have shown a comparative analysis of throughput, delay and queue length for the various congestion control algorithms RED, SFQ and REM. We also included the comparative analysis of loss rate having different bandwidth for these algorithms.

Sanjeev Patel; P. K. Gupta; Arjun Garg; Prateek Mehrotra; Manish Chhabra

2011-01-01

364

[Specialized software product for comparative analysis of multicomponent DNA fingerprints].  

UK PubMed Central (United Kingdom)

"GelAnalyzer" software, which is used to identify and correctly compare DNA fingerprints consisting of a large number of discrete bands, has been developed by the project to study the quantitative changes in DNA polymorphism patterns in animals and humans exposed to gamma radiation. The actual capabilities of this program are much broader and include the possibility to analyze the images of any multicomponent gels containing fragments of DNA, RNA, and proteins. This software product runs on Windows. "GelAnalyzer" allows one to analyze gel images obtained by a scanner, camera, or digital camera and ensures the visual control of the identification and comparative analysis of bands; it also makes it possible to take into account the bands that are poorly identified automatically and exclude the artifacts (incidental marks) on images. The operation of "GelAnalyzer" software is based on the determination of the values of normalized coordinates of bands with allowance for the relative electrophoretic mobility (Rf) of PCR products and comparison of their spectra (set of bands in gel lanes) to reveal the similarities or differences in their components with subsequent statistical data processing and display the results of the analysis.

Skosyrev VS; Vasil'eva GV; Lomaeva MG; Malakhova LV; Antipova VN; Bezlepkin VG

2013-04-01

365

2004/2008 labour market information comparative analysis report  

International Nuclear Information System (INIS)

The electricity sector has entered into a phase of both challenges and opportunities. Challenges include workforce retirement, labour shortages, and increased competition from other employers to attract and retain the skilled people required to deliver on the increasing demand for electricity in Canada. The electricity sector in Canada is also moving into a new phase, whereby much of the existing infrastructure is either due for significant upgrades, or complete replacement. The increasing demand for electricity means that increased investment and capital expenditure will need to be put toward building new infrastructure altogether. The opportunities for the electricity industry will lie in its ability to effectively and efficiently react to these challenges. The purpose of this report was to provide employers and stakeholders in the sector with relevant and current trend data to help them make appropriate policy and human resource decisions. The report presented a comparative analysis of a 2004 Canadian Electricity Association employer survey with a 2008 Electricity Sector Council employer survey. The comparative analysis highlighted trends and changes that emerged between the 2004 and 2008 studies. Specific topics that were addressed included overall employment trends; employment diversity in the sector; age of non-support staff; recruitment; and retirements and pension eligibility. Recommendations were also offered. It was concluded that the electricity sector could benefit greatly from implementing on-going recruitment campaigns. refs., tabs., figs

366

A comparative analysis of Poaceae pollen seasons in Lublin (Poland)  

Directory of Open Access Journals (Sweden)

Full Text Available The aim of the present study was to compare the dynamics of grass pollen seasons and to assess whether the method of grouping pollen seasons and years with similar weather conditions would apply to the same groups. On the basis of Spearman's correlation test between pollen counts and weather parameters during the pollen season, the strongest positive correlation was found with temperature and air humidity. The pollen seasons greatly varied in terms of air humidity, rainfall, and cloud cover, whereas temperature variations were small. The seasons in 2004 (very cold) and in 2010 (very warm) are exceptions. As a result of cluster analysis, three groups of seasons were distinguished. The grouping of seasons by using various criteria produced different groups of pollen seasons. No strong direct relationship was found between the mean values of the seasonal meteorological factors analysed and groups of seasons. PCA analysis can be used for quick and easy interpretation of weather characteristics of a particular season and to compare it with other seasons.

Krystyna Piotrowska; Agnieszka Kubik-Komar

2012-01-01

367

Thermal buckling comparative analysis using Different FE (Finite Element) tools  

Energy Technology Data Exchange (ETDEWEB)

High operational temperature and pressure in offshore pipelines may lead to unexpected lateral movements, sometimes call lateral buckling, which can have serious consequences for the integrity of the pipeline. The phenomenon of lateral buckling in offshore pipelines needs to be analysed in the design phase using FEM. The analysis should take into account many parameters, including operational temperature and pressure, fluid characteristic, seabed profile, soil parameters, coatings of the pipe, free spans etc. The buckling initiation force is sensitive to small changes of any initial geometric out-of-straightness, thus the modeling of the as-laid state of the pipeline is an important part of the design process. Recently some dedicated finite elements programs have been created making modeling of the offshore environment more convenient that has been the case with the use of general purpose finite element software. The present paper aims to compare thermal buckling analysis of sub sea pipeline performed using different finite elements tools, i.e. general purpose programs (ANSYS, ABAQUS) and dedicated software (SAGE Profile 3D) for a single pipeline resting on an the seabed. The analyses considered the pipeline resting on a flat seabed with a small levels of out-of straightness initiating the lateral buckling. The results show the quite good agreement of results of buckling in elastic range and in the conclusions next comparative analyses with sensitivity cases are recommended. (author)

Banasiak, Waldemar; Labouriau, Pedro [INTECSEA do Brasil, Rio de Janeiro, RJ (Brazil); Burnett, Christopher [INTECSEA UK, Surrey (United Kingdom); Falepin, Hendrik [Fugro Engineers SA/NV, Brussels (Belgium)

2009-12-19

368

ENHANCING USERS? EXPERIENCE: A CONTENT ANALYSIS OF 12 UNIVERSITY LIBRARIES FACEBOOK PROFILES  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Facebook has become one of the most prominent tools for social networking over the last few years. Since its establishing in 2004, more and more players have made use of it: not just ordinary users willing to find their old friends and to get back into contact with them, but also, for example, more ...

Calvi, Licia; Cassella, Maria; Nuijten, Koos

369

Security Analysis of Practical Anonymous User Authentication Scheme with Security Proof  

Directory of Open Access Journals (Sweden)

Full Text Available Chien proposed a practical anonymous user authentication scheme with security proof in 2008. Even he used bitwise exclusive-or to against multiplicative attack and the exclusive-or implants easier and faster. But he may have misused order of operation in mathematical precedence. In this article, we would like to point out these errors in the related work and scheme.

Chenglian Liu; Changlu Lin; Shuliang Sun

2013-01-01

370

[Quality analysis by external users of the non-medical health transport unit of Alicante].  

UK PubMed Central (United Kingdom)

UNLABELLED: Non-medical health transport has great health, media and social repercussions and requires a very considerable amount of human and economic resources. OBJECTIVE: To describe the quality, evaluated by external users of our Health Department, in order to know what are the most important elements for external users. METHODS: Cross-sectional, descriptive observational study. Population to study: patients with a social security health card who come to the Hospital of Alicante and are non-medical health transport unit users. RESULTS: Waiting time to be delivered to hospital in 92.7% of the cases was less than an hour, and was between one and two hours for 7.2%. The most frequent destinations were rehabilitation service and outpatient clinics. When users were asked if the would recommend this service, 60.9% said "for sure" and 39.1% said "probably yes". CONCLUSIONS: This study allows us to know patient needs and expectations, as well as the factors they value the most and which of our work areas to improve.

Soriano Clemor C; Cano FS; Gimeno FM

2011-01-01

371

Alkahest NuclearBLAST : a user-friendly BLAST management and analysis system  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract Background - Sequencing of EST and BAC end datasets is no longer limited to large research groups. Drops in per-base pricing have made high throughput sequencing accessible to individual investigators. However, there are few options available which provide a free and user-f...

Diener Stephen E; Houfek Thomas D; Kalat Sam E; Windham DE; Burke Mark; Opperman Charles; Dean Ralph A

372

The Comparative Analysis of Aversive and Ordinary Noise.  

Science.gov (United States)

There is a vast amount of literature concerning the psychological and physiological effects of ordinary noise on the individual. However, few publications have addressed the analysis of aversive noise. This research analyzes three noises which produce the familiar goose flesh or chilling effect responsivity. These aversive sounds which are made by chalk squeaking on the chalkboard, fingernails on the chalkboard and rubbing styrofoam against a smooth surface are digitally compared to ordinary noise to show how these aversive sounds differ from sounds which are only annoying. This work, which uses Fast Fourier Transform (FFT) analysis is a combination with cross correlation analysis and other innovative methods to produce comparative data on noises, illustrates subtle differences between ordinary and aversive noise which may be useful for future work in acoustics or experimental psychology. The literature review shows disagreement among the numerous works on the effects of ordinary noise on human subjects. One explanation for this difference is the failure to adequately measure and define the dynamic nature of the noise used. The existing literature also establishes that a mixture of tones plus random noise is more annoying (but not aversive) than either the random noise or the tones alone. This investigation shows that one property of aversive noises is the combination of randomness plus tones which vary rapidly with time. This paper utilizes a new digital technique which improves the FFT analyzer resolution by a factor of 25. The resulting +/-2 Hz accuracy facilitated the presentation of frequency variation as a function of time data. Other computer generated graphical data includes the percent harmonic deviation as a function of time, the rate of change of fundamental frequency, and the rate of change in harmonic deviation. From these dynamic data, average values are calculated which show the aversive noise to be consistently greater in mean frequency deviation, average frequency deviation rate, harmonic deviation, and harmonic deviation rate. The cross correlation analysis is used to compare aversive sounds to each other and then the aversive sounds to ordinary noise. The results show average cross correlations among aversive sounds to be 0.91 while the aversive to ordinary noise cross correlation averages 0.57. This work includes 326 computer generated graphical presentations of the dynamic properties of noise.

Mobley, C. Marion, Jr.

373

Mycobacterial species as case-study of comparative genome analysis  

DEFF Research Database (Denmark)

The genus Mycobacterium represents more than 120 species including important pathogens of human and cause major public health problems and illnesses. Further, with more than 100 genome sequences from this genus, comparative genome analysis can provide new insights for better understanding the evolutionary events of these species and improving drugs, vaccines, and diagnostics tools for controlling Mycobacterial diseases. In this present study we aim to outline a comparative genome analysis of fourteen Mycobacterial genomes: M. avium subsp. paratuberculosis K—10, M. bovis AF2122/97, M. bovis BCG str. Pasteur 1173P2, M. leprae Br4923, M. marinum M, M. sp. KMS, M. sp. MCS, M. tuberculosis CDC1551, M. tuberculosis F11, M. tuberculosis H37Ra, M. tuberculosis H37Rv, M. tuberculosis KZN 1435 , M. ulcerans Agy99,and M. vanbaalenii PYR—1, For this purpose a comparison has been done based on their length of genomes, GC content, number of genes in different data bases (Genbank, Refseq, and Prodigal). The BLAST matrix of these genomes has been figured to give a lot of information about the similarity between species in a simple scheme. As a result of multiple genome analysis, the pan and core genome have been defined for twelve Mycobacterial species. We have also introduced the genome atlas of the reference strain M. tuberculosis H37Rv which can give a good overview of this genome. And for examining the phylogenetic relationships among these bacteria, a phylogenic tree has been constructed from 16S rRNA gene for tuberculosis and non tuberculosis Mycobacteria to understand the evolutionary events of these species.

Zakham, F.; Belayachi, L.

2011-01-01

374

Comparative QTL analysis and its application to cereal breeding  

International Nuclear Information System (INIS)

Following the construction of comprehensive genetic maps for almost all the major crop species, application of marker assisted selection can become a major tool in plant breeding. However, successful application of this approach requires that a portfolio of the tagged genes that control the traits of interest be established within each individual species. Since many of the important agronomic traits are quantitative in nature, this first requires the mapping of quantitative trait loci (QTL) using established and new statistical approaches. However, QTL analysis can now be considered in a wider context, since the great advantage of molecular markers over conventional markers is that DNA probes hybridize across crosses within the same species, across genomes within polyploid species, and frequently across independent genomes of taxonomically related species. Thus, comparative genetic analysis allows a new approach to gene location, provides new insights into gene action and gives breeders access to a wider spectrum of genes. Two major uses of comparative mapping approaches to map QTL within and between cereal genomes are discussed. First, it is shown that within many polyploid and genome duplicated species the homology of marker loci and the collinearity of maps allow QTL locations in one genome to be extrapolated to another, for example, in bread wheat and maize. Second, it is shown that genetic analysis in one species can be indicative of the presence of homologous genes in another species and that hitherto undetected genes in a related species can be identified. Examples from studies of the QTL that control grain quality in wheat, and adaptation and responses to abiotic stress, in particular low temperatures, in wheat and barley, are presented. (author). 15 refs, 3 figs, 1 tab.

1995-01-01

375

Comparative analysis of EPA cost-benefit methodologies  

Energy Technology Data Exchange (ETDEWEB)

In recent years, reforming the regulatory process has received much attention from diverse groups such as environmentalists, the government, and industry. A cost-benefit analysis can be a useful way to organize and compare the favorable and unfavorable impacts a proposed action night have on society. Since 1981, two Executive Orders have required the U.S. Environmental Protection Agency (EPA) and other regulatory agencies to perform cost-benefit analyses in support of regulatory decision making. At the EPA, a cost-benefit analysis is published as a document called a regulatory impact analysis (RIA). This report reviews cost-benefit methodologies used by three EPA program offices: Office of Air and Radiation, Office of Solid Waste, and Office of Water. These offices were chosen because they promulgate regulations that affect the policies of this study`s sponsor (U.S. Department of Energy, Office of Fossil Energy) and the technologies it uses. The study was conducted by reviewing 11 RIAs recently published by the three offices and by interviewing staff members in the offices. To draw conclusions about the EPA cost-benefit methodologies, their components were compared with those of a standard methodology (i.e., those that should be included in a comprehensive cost-benefit methodology). This study focused on the consistency of the approaches as well as their strengths and weaknesses, since differences in the cost-benefit methodologies themselves or in their application can cause confusion and preclude consistent comparison of regulations both within and among program offices.

Poch, L.; Gillette, J.; Veil, J.

1998-05-01

376

Mycobacterial species as case-study of comparative genome analysis.  

UK PubMed Central (United Kingdom)

The genus Mycobacterium represents more than 120 species including important pathogens of human and cause major public health problems and illnesses. Further, with more than 100 genome sequences from this genus, comparative genome analysis can provide new insights for better understanding the evolutionary events of these species and improving drugs, vaccines, and diagnostics tools for controlling Mycobacterial diseases. In this present study we aim to outline a comparative genome analysis of fourteen Mycobacterial genomes: M. avium subsp. paratuberculosis K—10, M. bovis AF2122/97, M. bovis BCG str. Pasteur 1173P2, M. leprae Br4923, M. marinum M, M. sp. KMS, M. sp. MCS, M. tuberculosis CDC1551, M. tuberculosis F11, M. tuberculosis H37Ra, M. tuberculosis H37Rv, M. tuberculosis KZN 1435 , M. ulcerans Agy99,and M. vanbaalenii PYR—1, For this purpose a comparison has been done based on their length of genomes, GC content, number of genes in different data bases (Genbank, Refseq, and Prodigal). The BLAST matrix of these genomes has been figured to give a lot of information about the similarity between species in a simple scheme. As a result of multiple genome analysis, the pan and core genome have been defined for twelve Mycobacterial species. We have also introduced the genome atlas of the reference strain M. tuberculosis H37Rv which can give a good overview of this genome. And for examining the phylogenetic relationships among these bacteria, a phylogenic tree has been constructed from 16S rRNA gene for tuberculosis and non tuberculosis Mycobacteria to understand the evolutionary events of these species.

Zakham F; Belayachi L; Ussery D; Akrim M; Benjouad A; El Aouad R; Ennaji MM

2011-01-01

377

Comparative analysis of solid waste management in 20 cities.  

Science.gov (United States)

This paper uses the 'lens' of integrated and sustainable waste management (ISWM) to analyse the new data set compiled on 20 cities in six continents for the UN-Habitat flagship publication Solid Waste Management in the World's Cities. The comparative analysis looks first at waste generation rates and waste composition data. A process flow diagram is prepared for each city, as a powerful tool for representing the solid waste system as a whole in a comprehensive but concise way. Benchmark indicators are presented and compared for the three key physical components/drivers: public health and collection; environment and disposal; and resource recovery--and for three governance strategies required to deliver a well-functioning ISWM system: inclusivity; financial sustainability; and sound institutions and pro-active policies. Key insights include the variety and diversity of successful models - there is no 'one size fits all'; the necessity of good, reliable data; the importance of focusing on governance as well as technology; and the need to build on the existing strengths of the city. An example of the latter is the critical role of the informal sector in the cities in many developing countries: it not only delivers recycling rates that are comparable with modern Western systems, but also saves the city authorities millions of dollars in avoided waste collection and disposal costs. This provides the opportunity for win-win solutions, so long as the related wider challenges can be addressed. PMID:22407700

Wilson, David C; Rodic, Ljiljana; Scheinberg, Anne; Velis, Costas A; Alabaster, Graham

2012-03-01

378

Comparative analysis of solid waste management in 20 cities.  

UK PubMed Central (United Kingdom)

This paper uses the 'lens' of integrated and sustainable waste management (ISWM) to analyse the new data set compiled on 20 cities in six continents for the UN-Habitat flagship publication Solid Waste Management in the World's Cities. The comparative analysis looks first at waste generation rates and waste composition data. A process flow diagram is prepared for each city, as a powerful tool for representing the solid waste system as a whole in a comprehensive but concise way. Benchmark indicators are presented and compared for the three key physical components/drivers: public health and collection; environment and disposal; and resource recovery--and for three governance strategies required to deliver a well-functioning ISWM system: inclusivity; financial sustainability; and sound institutions and pro-active policies. Key insights include the variety and diversity of successful models - there is no 'one size fits all'; the necessity of good, reliable data; the importance of focusing on governance as well as technology; and the need to build on the existing strengths of the city. An example of the latter is the critical role of the informal sector in the cities in many developing countries: it not only delivers recycling rates that are comparable with modern Western systems, but also saves the city authorities millions of dollars in avoided waste collection and disposal costs. This provides the opportunity for win-win solutions, so long as the related wider challenges can be addressed.

Wilson DC; Rodic L; Scheinberg A; Velis CA; Alabaster G

2012-03-01

379

Decentred comparative research: Context sensitive analysis of maternal health care.  

UK PubMed Central (United Kingdom)

Cross-national comparison is an important tool for health care research, but too often those who use this method fail to consider important inter-national differences in the social organisation of health care and in the relationship between health care practices and social experience. In this article we make the case for a context-sensitive and reflexive analysis of health care that allows researchers to understand the important ways that health care systems and practices are situated in time and place. Our approach--decentred comparative research--addresses the often unacknowledged ethnocentrism of traditional comparative research. Decentred cross-national research is a method that draws on the socially situated and distributed expertise of an international research team to develop key concepts and research questions. We used the decentred method to fashion a multilevel framework that used the meso level of organisation (i.e., health care organisations, professional groups and other concrete organisations) as an analytical starting point in our international study of maternity care in eight countries. Our method departs from traditional comparative health systems research that is most often conducted at the macro level. Our approach will help researchers develop new and socially robust knowledge about health care.

Wrede S; Benoit C; Bourgeault IL; van Teijlingen ER; Sandall J; De Vries RG

2006-12-01

380

Decentred comparative research: Context sensitive analysis of maternal health care.  

Science.gov (United States)

Cross-national comparison is an important tool for health care research, but too often those who use this method fail to consider important inter-national differences in the social organisation of health care and in the relationship between health care practices and social experience. In this article we make the case for a context-sensitive and reflexive analysis of health care that allows researchers to understand the important ways that health care systems and practices are situated in time and place. Our approach--decentred comparative research--addresses the often unacknowledged ethnocentrism of traditional comparative research. Decentred cross-national research is a method that draws on the socially situated and distributed expertise of an international research team to develop key concepts and research questions. We used the decentred method to fashion a multilevel framework that used the meso level of organisation (i.e., health care organisations, professional groups and other concrete organisations) as an analytical starting point in our international study of maternity care in eight countries. Our method departs from traditional comparative health systems research that is most often conducted at the macro level. Our approach will help researchers develop new and socially robust knowledge about health care. PMID:16962695

Wrede, Sirpa; Benoit, Cecilia; Bourgeault, Ivy Lynn; van Teijlingen, Edwin R; Sandall, Jane; De Vries, Raymond G

2006-09-07

 
 
 
 
381

Comparative analysis of interactions of RASSF1-10.  

UK PubMed Central (United Kingdom)

Members of the RASSF family (RASSF1-10) have been identified as candidate tumour suppressors that are frequently downregulated by promoter hypermethylation in cancers. These proteins carry a common Ras-association (RA) and SARAH domain (RASSF1-6) that can potentially bind Ras oncoproteins and mediate protein-protein interactions with other SARAH domain proteins. However, there is a notable lack of comparative characterisation of the RASSF family, as well as molecular and structural information that facilitate their tumour suppressive functions. As part of our comparative analysis, we modelled the RA and SARAH domains of the RASSF members based on existing structures and predicted their potential interactions. These in silico predictions were compared to in vitro interaction studies with Ras and MST kinase (a SARAH domain-containing protein). Our data shows a diversity of interaction within the RASSF family RA domain, whereas the SARAH domain-mediated interactions for RASSF1-6 are consistent with the predictions. This suggests that different members, despite shared general architecture, could have distinct functional properties. Additionally, we identify a new interacting partner for MST kinase in the form of RASSF7. Current data supports an interaction model where RASSF serves as an adaptor for the assembly of multiple protein complexes and further functional interactions, involving MST kinases and other SARAH domain proteins, which could be regulated by Ras.

Chan JJ; Flatters D; Rodrigues-Lima F; Yan J; Thalassinos K; Katan M

2013-05-01

382

Modeling and Analysis of User-Defined-Constant-Switching Frequency DSTATCOM for Three Phase Four Wire Distribution System  

Directory of Open Access Journals (Sweden)

Full Text Available This paper deals with modeling and analysis of User Defined Constant Switching (UDCS) frequency current-controlled based four-leg DSTATCOM. The first three-phase legs are operated in hysteresis current tracking mode, and the neutral is operated by fixed switching square pulses of desired frequency. Consequently, the first three legs get tuned to the fourth leg’s user defined frequency. Analytical expressions arederived to specify the range of frequency at which the scheme functions effectively. Design procedure for selection parameter of the four leg inverter such as hysteresis band, DC link voltage, DC link capacitor and inductor are suggested, and simulations are done to value the design procedure for a UDCS-controller based DSTATCOM. Comparison is made between the performance of the UDCS controlled DSTATCOM and conventional hysteresis-controlled DSTATCOM and presented.

S. Suresh, Dr. Devarajan,N.Vidhya,V. Rajasekaran

2012-01-01

383

Comprehensive comparative analysis of kinesins in photosynthetic eukaryotes  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Kinesins, a superfamily of molecular motors, use microtubules as tracks and transport diverse cellular cargoes. All kinesins contain a highly conserved ~350 amino acid motor domain. Previous analysis of the completed genome sequence of one flowering plant (Arabidopsis) has resu