WorldWideScience

Sample records for local crime patterns

  1. The Impact of Gang Formation on Local Patterns of Crime

    Science.gov (United States)

    Tita, George; Ridgeway, Greg

    2007-01-01

    Research has demonstrated that even after controlling for individual level attributes, individuals who join gangs commit more crimes than do nongang members. Furthermore, the offending level of gang members is higher when they report being active members of the gang. Therefore, gang membership clearly facilitates offending above and beyond…

  2. The Impact of Gang Formation on Local Patterns of Crime

    Science.gov (United States)

    Tita, George; Ridgeway, Greg

    2007-01-01

    Research has demonstrated that even after controlling for individual level attributes, individuals who join gangs commit more crimes than do nongang members. Furthermore, the offending level of gang members is higher when they report being active members of the gang. Therefore, gang membership clearly facilitates offending above and beyond…

  3. Patterns and Costs of Crime.

    Science.gov (United States)

    Lincoln, Alan Jay

    1984-01-01

    Presents results of the Library Crime Research Project, a three-year study of crime and disruption patterns in public libraries in all 50 states. Patterns of crime, costs of crime (direct, indirect), losses due to crime, patterns of security use, and effects of victimization are covered. Three references are listed. (EJS)

  4. Patterns - "A crime solver"

    Directory of Open Access Journals (Sweden)

    A Nagasupriya

    2011-01-01

    Full Text Available Objective: This study is intended to analyze the predominant pattern of lip and finger prints in males and females and to correlate lip print and finger print for gender identity. Materials and Methods: The study sample comprised of 200 students of Vishnu Dental College, Bhimavaram, Andhra Pradesh, 100 males and 100 females aged between 18 to 27 years. Brown/pink colored lip stick was applied on the lips and the subject was asked to spread it uniformly over the lips. Lip prints were traced in the normal rest position of the lips with the help of cellophane tape. The imprint of the left thumb was taken on a white chart sheet and visualized using magnifying lens. While three main types of finger prints are identified, the classification of lip prints is simplified into branched, reticular, and vertical types. Association between lip prints and finger prints was statistically tested using Chi-square test. Results: This study showed that lip and finger patterns did not reveal statistically significant results within the gender. The correlation between lip and finger patterns for gender identification, was statistically significant. In males, branched type of lip pattern associated with arch, loop, and whorl type of finger pattern was most significant. In females, vertical lip pattern associated with arch finger pattern and reticular lip pattern associated with whorl finger patterns were most significant. Conclusion: We conclude that a correlative study between the lip print and finger print will be very useful in forensic science for gender identification.

  5. Application of pattern recognition techniques to crime analysis

    Energy Technology Data Exchange (ETDEWEB)

    Bender, C.F.; Cox, L.A. Jr.; Chappell, G.A.

    1976-08-15

    The initial goal was to evaluate the capabilities of current pattern recognition techniques when applied to existing computerized crime data. Performance was to be evaluated both in terms of the system's capability to predict crimes and to optimize police manpower allocation. A relation was sought to predict the crime's susceptibility to solution, based on knowledge of the crime type, location, time, etc. The preliminary results of this work are discussed. They indicate that automatic crime analysis involving pattern recognition techniques is feasible, and that efforts to determine optimum variables and techniques are warranted. 47 figures (RWR)

  6. LOCAL GOVERNMENTS’ ROLE IN CRIME PREVENTION

    Directory of Open Access Journals (Sweden)

    A. R. Manoukian

    2016-01-01

    Full Text Available Currently, the local government is one of the most important elements of the constitutional order of States, following in his political development of democratic principles. At the same time, showing relatively high autonomy, local governments strengthen state power, enhances its effectiveness and that of our country in the modern period is crucial. Ensuring personal, public, and their component parts criminological security municipal government is part of the national strategy to combat crime. Municipal Authority, representing the will of the people inhabiting the territory of a particular municipality, as the subject of management should always be oriented to the actual criminological situation in the region and a particular locality, be able to actively and quickly state agencies to respond to specific adverse circumstances that are often unpredictable and produce the development of the criminal situation in the territory of the municipality or region.

  7. Gait patterns for crime fighting: statistical evaluation

    Science.gov (United States)

    Sulovská, Kateřina; Bělašková, Silvie; Adámek, Milan

    2013-10-01

    The criminality is omnipresent during the human history. Modern technology brings novel opportunities for identification of a perpetrator. One of these opportunities is an analysis of video recordings, which may be taken during the crime itself or before/after the crime. The video analysis can be classed as identification analyses, respectively identification of a person via externals. The bipedal locomotion focuses on human movement on the basis of their anatomical-physiological features. Nowadays, the human gait is tested by many laboratories to learn whether the identification via bipedal locomotion is possible or not. The aim of our study is to use 2D components out of 3D data from the VICON Mocap system for deep statistical analyses. This paper introduces recent results of a fundamental study focused on various gait patterns during different conditions. The study contains data from 12 participants. Curves obtained from these measurements were sorted, averaged and statistically tested to estimate the stability and distinctiveness of this biometrics. Results show satisfactory distinctness of some chosen points, while some do not embody significant difference. However, results presented in this paper are of initial phase of further deeper and more exacting analyses of gait patterns under different conditions.

  8. Individual Perceptions of Local Crime Risk

    NARCIS (Netherlands)

    Salm, M.; Vollaard, B.A.

    2014-01-01

    We provide evidence that perceptions of crime risk are severely biased for many years after a move to a new neighborhood. Based on four successive waves of a large crime survey, matched with administrative records on household relocations, we find that the longer an individual lives in a

  9. Space-Time Analysis of Crime Patterns in Central London

    Science.gov (United States)

    Cheng, T.; Williams, D.

    2012-07-01

    Crime continues to cast a shadow over citizen well-being in big cities today, while also imposing huge economic and social costs. Timely understanding of how criminality emerges and how crime patterns evolve is crucial to anticipating crime, dealing with it when it occurs and developing public confidence in the police service. Every day, about 10,000 crime incidents are reported by citizens, recorded and geo-referenced in the London Metropolitan Police Service Computer Aided Dispatch (CAD) database. The unique nature of this dataset allows the patterns to be explored at particularly fine temporal granularity and at multiple spatial resolutions. This study provides a framework for the exploratory spatio-temporal analysis of crime patterns that combines visual inquiry tools (interactive animations, space-time cubes and map matrices) with cluster analysis (spatial-temporal scan statistics and the self-organizing map). This framework is tested on the CAD dataset for the London Borough of Camden in March 2010. Patterns of crime through space and time are discovered and the clustering methods were evaluated on their ability to facilitate the discovery and interpretation of these patterns.

  10. The effect of local crime on well-being: Evidence for Germany

    OpenAIRE

    Krekel, Christian; Poprawe, Marie Luise

    2014-01-01

    This paper investigates the effect of local crime on well-being in Germany, using data from the German Socio-Economic Panel (SOEP) and a novel data set constructed from official police crime statistics, covering both counties and urban districts for the time period between 1994 and 2012. We find that local area crime has a significantly negative impact on life satisfaction, makes residents worry more frequently, and worry more about crime in Germany. In particular, a 1% increase in the crime ...

  11. Local Crime Prevention: ‘Breathing Life (Back into Social Democratic and Penal Welfare Concerns’?

    Directory of Open Access Journals (Sweden)

    Garner Clancey

    2015-12-01

    Full Text Available Fieldwork in the inner-Sydney postcode area of Glebe (New South Wales, Australia sought to understand how local community workers conceptualise crime causation and the approaches adopted to prevent crime. Observation of more than 30 inter-agency meetings, 15 interviews and two focus groups with diverse local workers revealed that social-welfare or ‘root’ causes of crime were central to explanations of local crime. Numerous crime prevention measures in the area respond directly to these understandings of crime (a youth diversion program on Friday and Saturday evenings, an alternative education program, a police-youth exercise program, and so on. While other more surveillant forms of crime prevention were evident, the findings of this research suggest a significant social-welfare orientation to crime prevention. These findings echo Brown’s (2012 observations of the resilience of penal-welfarism in Australia.

  12. Crime

    Data.gov (United States)

    Montgomery County of Maryland — Updated daily postings on Montgomery County’s open data website, dataMontgomery, provide the public with direct access to crime statistic databases - including raw...

  13. From Bad to Worse: How Changing Inequality in Nearby Areas Impacts Local Crime

    National Research Council Canada - National Science Library

    John R. Hipp; Charis E. Kubrin

    2017-01-01

    Recognition is growing that criminogenic neighborhood effects may not end at the borders of local communities, that neighborhoods are located relative to one another in ways that shape local crime rates...

  14. Event Networks and the Identification of Crime Pattern Motifs.

    Directory of Open Access Journals (Sweden)

    Toby Davies

    Full Text Available In this paper we demonstrate the use of network analysis to characterise patterns of clustering in spatio-temporal events. Such clustering is of both theoretical and practical importance in the study of crime, and forms the basis for a number of preventative strategies. However, existing analytical methods show only that clustering is present in data, while offering little insight into the nature of the patterns present. Here, we show how the classification of pairs of events as close in space and time can be used to define a network, thereby generalising previous approaches. The application of graph-theoretic techniques to these networks can then offer significantly deeper insight into the structure of the data than previously possible. In particular, we focus on the identification of network motifs, which have clear interpretation in terms of spatio-temporal behaviour. Statistical analysis is complicated by the nature of the underlying data, and we provide a method by which appropriate randomised graphs can be generated. Two datasets are used as case studies: maritime piracy at the global scale, and residential burglary in an urban area. In both cases, the same significant 3-vertex motif is found; this result suggests that incidents tend to occur not just in pairs, but in fact in larger groups within a restricted spatio-temporal domain. In the 4-vertex case, different motifs are found to be significant in each case, suggesting that this technique is capable of discriminating between clustering patterns at a finer granularity than previously possible.

  15. Pattern Driven Stress Localization

    Science.gov (United States)

    Croll, Andrew; Crosby, Alfred

    2010-03-01

    The self-assembly of patterns from isotropic initial states is a major driver of modern soft-matter research. This avenue of study is directed by the desire to understand the complex physics of the varied structures found in Nature, and by technological interest in functional materials that may be derived through biomimicry. In this work we show how a simple striped phase can respond with significant complexity to an appropriately chosen perturbation. In particular, we show how a buckled elastic plate transitions into a state of stress localization using a simple, self-assembled variation in surface topography. The collection of topographic boundaries act in concert to change the state from isotropic sinusoidal wrinkles, to sharp folds or creases separated by relatively flat regions. By varying the size of the imposed topographic pattern or the wavelength of the wrinkles, we construct a state diagram of the system. The localized state has implications for both biological systems, and for the control of non-linear pattern formation.

  16. Embedded crimes? On the overlapping patterns of delinquency among legal and illegal immigrants in the Netherlands

    NARCIS (Netherlands)

    A.S. Leerkes (Arjen)

    2004-01-01

    textabstractAbstract The prevalence of crime among illegal immigrants in the Netherlands appears to have risen. Primary and secondary analyses of police data showed that the involvement in crime among illegal immigrants (aged 12 to 25) reflects the patterns of delinquency among legal migrants of com

  17. Local determinants of crime: Do military bases matter?

    Directory of Open Access Journals (Sweden)

    Alfredo Paloyo

    2014-09-01

    Full Text Available Background: The majority of crime is committed by young men, and young men comprise the majority of the military-base population. The confluence of these two empirical regularities invites a scientific look at the contribution of a military base to criminal activity in ist geographic periphery. Objective: We estimate the impact on criminal activity of the massive base realignments and closures that occurred in Germany for the period 2003-2007. In particular, we examine breaking and entering, automobile-related crime, violent crime, and drug-related crime. Methods: We use a fixed-effect model to account for time-invariant unobservables in a panel of 298 military bases. We also take advantage of geographic information system software to mitigate issues arising from the spatial nature of the dataset. Results: The estimates indicate that the base realignments and closures did not have a significant impact on criminal activity surrounding the base. Traditional correlates of crime remain statistically significant in our specifications. Conclusions: Although crime is largely committed by young men, we find that the closure of military bases, which are staffed primarily by young men, does not have an impact on criminal activity. For matters of regional policy, we find that arguments pertaining to criminal activity generated by military bases are not supported by the data. Comments: Economic well-being, as measured by real GNP and relative disposable income, is negatively associated with crime. Higher unemployment has a positive association. Regions with higher share of foreigners also have higher crime levels.

  18. Analyses of crime patterns in NIBRS data based on a novel graph theory clustering method: Virginia as a case study.

    Science.gov (United States)

    Zhao, Peixin; Darrah, Marjorie; Nolan, Jim; Zhang, Cun-Quan

    2014-01-01

    This paper suggests a novel clustering method for analyzing the National Incident-Based Reporting System (NIBRS) data, which include the determination of correlation of different crime types, the development of a likelihood index for crimes to occur in a jurisdiction, and the clustering of jurisdictions based on crime type. The method was tested by using the 2005 assault data from 121 jurisdictions in Virginia as a test case. The analyses of these data show that some different crime types are correlated and some different crime parameters are correlated with different crime types. The analyses also show that certain jurisdictions within Virginia share certain crime patterns. This information assists with constructing a pattern for a specific crime type and can be used to determine whether a jurisdiction may be more likely to see this type of crime occur in their area.

  19. Analyses of Crime Patterns in NIBRS Data Based on a Novel Graph Theory Clustering Method: Virginia as a Case Study

    Directory of Open Access Journals (Sweden)

    Peixin Zhao

    2014-01-01

    Full Text Available This paper suggests a novel clustering method for analyzing the National Incident-Based Reporting System (NIBRS data, which include the determination of correlation of different crime types, the development of a likelihood index for crimes to occur in a jurisdiction, and the clustering of jurisdictions based on crime type. The method was tested by using the 2005 assault data from 121 jurisdictions in Virginia as a test case. The analyses of these data show that some different crime types are correlated and some different crime parameters are correlated with different crime types. The analyses also show that certain jurisdictions within Virginia share certain crime patterns. This information assists with constructing a pattern for a specific crime type and can be used to determine whether a jurisdiction may be more likely to see this type of crime occur in their area.

  20. The influence of gaming expenditure on crime rates in South Australia: a local area empirical investigation.

    Science.gov (United States)

    Wheeler, Sarah Ann; Round, David K; Sarre, Rick; O'Neil, Michael

    2008-03-01

    Although there has been much speculation about the possible links between gambling and crime rates, relevant quantitative evidence has been practically non-existent in Australia to date. This paper reports the results of research that utilised a model designed to investigate the potential relationship between electronic gaming machine expenditures and property (income-generating) crime rates reported to police in local areas in South Australia in 2002-2003. The research found that the higher the expenditures on gaming machines in a particular local area per adult, the higher the income-generating crime rate in that area. No such relationship was found between gaming machine expenditure and non-income-generating crime rates. However, further research is required before any policy-relevant conclusions can be drawn.

  1. Testing the impact of local alcohol licencing policies on reported crime rates in England

    Science.gov (United States)

    De Vocht, F; Heron, J; Campbell, R; Egan, M; Mooney, J D; Angus, C; Brennan, A; Hickman, M

    2017-01-01

    Background Excessive alcohol use contributes to public nuisance, antisocial behaviour, and domestic, interpersonal and sexual violence. We test whether licencing policies aimed at restricting its spatial and/or temporal availability, including cumulative impact zones, are associated with reductions in alcohol-related crime. Methods Reported crimes at English lower tier local authority (LTLA) level were used to calculate the rates of reported crimes including alcohol-attributable rates of sexual offences and violence against a person, and public order offences. Financial fraud was included as a control crime not directly associated with alcohol abuse. Each area was classified as to its cumulative licensing policy intensity for 2009–2015 and categorised as ‘passive’, low, medium or high. Crime rates adjusted for area deprivation, outlet density, alcohol-related hospital admissions and population size at baseline were analysed using hierarchical (log-rate) growth modelling. Results 284 of 326 LTLAs could be linked and had complete data. From 2009 to 2013 alcohol-related violent and sexual crimes and public order offences rates declined faster in areas with more ‘intense’ policies (about 1.2, 0.10 and 1.7 per 1000 people compared with 0.6, 0.01 and 1.0 per 1000 people in ‘passive’ areas, respectively). Post-2013, the recorded rates increased again. No trends were observed for financial fraud. Conclusions Local areas in England with more intense alcohol licensing policies had a stronger decline in rates of violent crimes, sexual crimes and public order offences in the period up to 2013 of the order of 4–6% greater compared with areas where these policies were not in place, but not thereafter. PMID:27514936

  2. Participatory mapping for crime prevention in South Africa - local solutions to local problems

    CSIR Research Space (South Africa)

    Liebermann, S

    2004-10-01

    Full Text Available and practices to the crime prevention field was initiated by urban researchers, and resulted in the development of the model described here. Initial results indicate that the process allows people to understand that crime does not occur randomly...

  3. Application of multi-resolution 3D techniques in crime scene documentation with bloodstain pattern analysis.

    Science.gov (United States)

    Hołowko, Elwira; Januszkiewicz, Kamil; Bolewicki, Paweł; Sitnik, Robert; Michoński, Jakub

    2016-10-01

    In forensic documentation with bloodstain pattern analysis (BPA) it is highly desirable to obtain non-invasively overall documentation of a crime scene, but also register in high resolution single evidence objects, like bloodstains. In this study, we propose a hierarchical 3D scanning platform designed according to the top-down approach known from the traditional forensic photography. The overall 3D model of a scene is obtained via integration of laser scans registered from different positions. Some parts of a scene being particularly interesting are documented using midrange scanner, and the smallest details are added in the highest resolution as close-up scans. The scanning devices are controlled using developed software equipped with advanced algorithms for point cloud processing. To verify the feasibility and effectiveness of multi-resolution 3D scanning in crime scene documentation, our platform was applied to document a murder scene simulated by the BPA experts from the Central Forensic Laboratory of the Police R&D, Warsaw, Poland. Applying the 3D scanning platform proved beneficial in the documentation of a crime scene combined with BPA. The multi-resolution 3D model enables virtual exploration of a scene in a three-dimensional environment, distance measurement, and gives a more realistic preservation of the evidences together with their surroundings. Moreover, high-resolution close-up scans aligned in a 3D model can be used to analyze bloodstains revealed at the crime scene. The result of BPA such as trajectories, and the area of origin are visualized and analyzed in an accurate model of a scene. At this stage, a simplified approach considering the trajectory of blood drop as a straight line is applied. Although the 3D scanning platform offers a new quality of crime scene documentation with BPA, some of the limitations of the technique are also mentioned.

  4. On the Behavioral Patterns of the Crime of Money Laundering%洗钱罪行为方式研究

    Institute of Scientific and Technical Information of China (English)

    赵锋

    2012-01-01

    本文在回顾我国洗钱罪行为方式演变历程的基础上,着重对洗钱罪行为方式规定不完备的问题进行分析,并从洗钱罪的阶段特征、国际公约对洗钱罪定义等方面进行总结,从而提出了完善我国洗钱罪行为方式定义的建议。%The paper reviews the evolution of behavioral patterns of the crime of money laundering in China, analyzes the prob lem that the regulation for behavioral patterns of the crime of money laundering is imperfect, describes the characteristic and definition of the crime of money laundering. Finally, the paper proposes suggestion on perfecting the definition of behavioral patterns of the crime of money laundering.

  5. ORGANIZATIONAL ASPECTS OF TYPICAL PATTERNS OF CRIME MECHANISM IN THE SPHERE OF ILLEGAL WEAPON AND AMMUNITION TURNOVER

    Directory of Open Access Journals (Sweden)

    Ragulin I. Y.

    2015-11-01

    Full Text Available This article is important today because there is not enough attention in the contemporary law publications paid to the typical patterns of crime mechanism especially in the sphere of illegal weapon and ammunition turnover. Taking into account the opinions of such well-known forensic scientists as R.S. Belkin, V.D. Zelensky, G.M. Meretukov, M.V. Golovin, V.A. Obraztsov, J.G. Korukhov, V.Y. Koldin, O.V. Chelysheva, L.Y. Drapkin, V.N. Karagodin and others, the author comes to the conclusion that it’s necessary to develop typical patterns of crime mechanism for certain types of crime. The author has worked out some typical patterns of crime mechanism in the sphere of illegal weapon and ammunition turnover based upon major informative criminalistic elements, this particular article describes seven typical patterns of crime mechanism for the illegal storage, transportation, transfer, carry, purchase and sale, manufacture, repair or alteration, theft or extortion, careless storage or improper performance of duties on protection of weapon, its basic parts and ammunition. Each pattern is accompanied with the examples of judicial and investigative practice, followed by the necessary explanations and analysis of the activities of the subject of the investigation on the preparation, followup and final stages, which leads to the conclusion about the legitimacy of the proposed patterns

  6. The Effects of Local Police Surges on Crime and Arrests in New York City.

    Science.gov (United States)

    MacDonald, John; Fagan, Jeffrey; Geller, Amanda

    2016-01-01

    The New York Police Department (NYPD) under Operation Impact deployed extra police officers to high crime areas designated as impact zones. Officers were encouraged to conduct investigative stops in these areas. City officials credited the program as one of the leading causes of New York City's low crime rate. We tested the effects of Operation Impact on reported crimes and arrests from 2004 to 2012 using a difference-in-differences approach. We used Poisson regression models to compare differences in crime and arrest counts before and after census block groups were designated as impact zones compared to census block groups in the same NYPD precincts but outside impact zones. Impact zones were significantly associated with reductions in total reported crimes, assaults, burglaries, drug violations, misdemeanor crimes, felony property crimes, robberies, and felony violent crimes. Impact zones were significantly associated with increases in total reported arrests, arrests for burglary, arrests for weapons, arrests for misdemeanor crimes, and arrests for property felony crimes. Impact zones were also significantly associated with increases in investigative stops for suspected crimes, but only the increase in stops made based on probable cause indicators of criminal behaviors were associated with crime reductions. The largest increase in investigative stops in impact zones was based on indicators of suspicious behavior that had no measurable effect on crime. The findings suggest that saturating high crime blocks with police helped reduce crime in New York City, but that the bulk of the investigative stops did not play an important role in the crime reductions. The findings indicate that crime reduction can be achieved with more focused investigative stops.

  7. The Effects of Local Police Surges on Crime and Arrests in New York City

    Science.gov (United States)

    MacDonald, John; Fagan, Jeffrey; Geller, Amanda

    2016-01-01

    The New York Police Department (NYPD) under Operation Impact deployed extra police officers to high crime areas designated as impact zones. Officers were encouraged to conduct investigative stops in these areas. City officials credited the program as one of the leading causes of New York City’s low crime rate. We tested the effects of Operation Impact on reported crimes and arrests from 2004 to 2012 using a difference-in-differences approach. We used Poisson regression models to compare differences in crime and arrest counts before and after census block groups were designated as impact zones compared to census block groups in the same NYPD precincts but outside impact zones. Impact zones were significantly associated with reductions in total reported crimes, assaults, burglaries, drug violations, misdemeanor crimes, felony property crimes, robberies, and felony violent crimes. Impact zones were significantly associated with increases in total reported arrests, arrests for burglary, arrests for weapons, arrests for misdemeanor crimes, and arrests for property felony crimes. Impact zones were also significantly associated with increases in investigative stops for suspected crimes, but only the increase in stops made based on probable cause indicators of criminal behaviors were associated with crime reductions. The largest increase in investigative stops in impact zones was based on indicators of suspicious behavior that had no measurable effect on crime. The findings suggest that saturating high crime blocks with police helped reduce crime in New York City, but that the bulk of the investigative stops did not play an important role in the crime reductions. The findings indicate that crime reduction can be achieved with more focused investigative stops. PMID:27310252

  8. Performance analysis of digital cameras versus chromatic white light (CWL) sensors for the localization of latent fingerprints in crime scenes

    Science.gov (United States)

    Jankow, Mathias; Hildebrandt, Mario; Sturm, Jennifer; Kiltz, Stefan; Vielhauer, Claus

    2012-06-01

    In future applications of contactless acquisition techniques for latent fingerprints the automatic localization of potential fingerprint traces in crime scenes is required. Our goal is to study the application of a camera-based approach1 comparing with the performance of chromatic white light (CWL) techniques2 for the latent fingerprint localization in coarse and the resulting acquisition using detailed scans. Furthermore, we briefly evaluate the suitability of the camera-based acquisition for the detection of malicious fingerprint traces using an extended camera setup in comparison to Kiltz et al.3 Our experimental setup includes a Canon EOS 550D4 digital single-lens reflex (DSLR) camera and a FRT MicroProf2005 surface measurement device with CWL6002 sensor. We apply at least two fingerprints to each surface in our test set with 8 different either smooth, textured and structured surfaces to evaluate the detection performance of the two localization techniques using different pre-processing and feature extraction techniques. Printed fingerprint patterns as reproducible but potentially malicious traces3 are additionally acquired and analyzed on foil and compact discs. Our results indicate positive tendency towards a fast localization using the camera-based technique. All fingerprints that are located using the CWL sensor are found using the camera. However,the disadvantage of the camera-based technique is that the size of the region of interest for the detailed scan for each potential latent fingerprint is usually slightly larger compared to the CWL-based localization. Furthermore, this technique does not acquire 3D data and the resulting images are distorted due to the necessary angle between the camera and the surface. When applying the camera-based approach, it is required to optimize the feature extraction and classification. Furthermore, the required acquisition time for each potential fingerprint needs to be estimated to determine the time-savings of the

  9. IMPACT Youth Crime Prevention.

    Science.gov (United States)

    Warrington, Georgina; Wright, Paul

    2003-01-01

    Four models of crime prevention are discussed that arise from differing views of the causes of crime: criminal justice, situational, developmental, and social development models. Two activity-based youth crime prevention projects in Queensland (Australia) use developmental and social development models and expand local youth service…

  10. Climatology of local flow patterns around Basel

    Energy Technology Data Exchange (ETDEWEB)

    Weber, R.O. [Paul Scherrer Inst. (PSI), Villigen (Switzerland)

    1997-06-01

    Recently a method has been developed to classify local-scale flow patterns from the wind measurements at a dense network of stations. It was found that in the MISTRAL area around Basel a dozen characteristic flow patterns occur. However, as the dense network of stations ran only during one year, no reliable climatology can be inferred from these data, especially the annual cycle of the flow patterns is not well determined from a single year of observations. As there exist several routinely operated stations in and near the MISTRAL area, a method was searched to identify the local flow patterns from the observations at the few routine stations. A linear discriminant analysis turned out to be the best method. Based of data from 11 stations which were simultaneously operated during 1990-1995 a six-year climatology of the flow patterns could be obtained. (author) 1 fig., 1 tab., 3 refs.

  11. Exploration of unstructured narrative crime reports : An unsupervised neural network and point pattern analysis approach

    NARCIS (Netherlands)

    Helbich, M.|info:eu-repo/dai/nl/370530349; Hagenauer, J.; Leitner, M.; Edwards, R.

    2013-01-01

    Crime intelligence analysis and criminal investigations are increasingly making use of geospatial methodologies to improve tactical and strategic decision-making. However, the full potential of geospatial technologies is yet to be exploited. In particular, geospatial technology currently applied by

  12. Modeling Hot Spot Motor Vehicle Theft Crime in Relation to Landuse and Settlement Patterns

    Directory of Open Access Journals (Sweden)

    Djaka Marwasta

    2004-01-01

    Full Text Available The crowd of Yogyakarta urban has impacted its surrounding area, including Depok sub district, which is indicated by the rising of physical development, for example education facilities and settlements. The progress does not only bring positive impact, but also negative impact for instance the rising of crime number i.e. motor vehicle robbery. The aims of this research are 1 mapping motor vehicle robbery data as the distribution map and identifying motor vehicle robbery hot spot base on distrbution map; and 2 studying the correlation of motor vehicle robbery hot spot with physical environment phenomena, i.e. land use type and settlement pattern. The research method consists of two parts; they are motor vehicle robbery cluster analysis and the relation of motor vehicle robbery and physical environment analysis. Motor vehicle robbery cluster analysis is using distribution data, which analyzes the distribution into motor vehicle robbery hot spot with nearest neighbor tehnique. Contingency coefficient and frequency distribution analysis is used to analyze the correlation of motor vehicle robbery hot spot and physical environment. Contingency coefficient is used to study the relation of motor vehicle robbery hot spot polygon with physical environment condition, whereas frequency distribution is used to study the distribution of motor vehicle robbery in the hot spot with physical environment condition. Physical environment which consists of land use type, housing density, house regularity pattern, and the average of building size, are obtained from interpretation of black and white panchromatic aerial photograph year 2000, in the scale 1 : 20.000. the most motor vehicle robbery hot spot is found on the settlement area, 68,3% from 378 motor vehicle robbery cases in the hot spot. The seond level is found on the education area (16.4%. The most motor vehicle hot spot in the settlement is found on the hight density and irregular settlement, which have big

  13. Attempted crime

    OpenAIRE

    Kalneja, Jolanta

    2013-01-01

    The theme of the bachelor paper is "Attempted Crime." Attempted crime is unfinished criminal offense and the person carrying out an attempted crime threat to the interests protected by the Criminal Law. In the Judicial practice, there are problems of crime attempt qualification, distinguishing between the completed offenses, preparation for a crime. The judicial practice, there are problems of crime attempt qualification, distinguishing between the completed offense, preparation for a crime....

  14. Anomic Crime in Post-Welfarist Societies: Cult of the Individual, Integration Patterns and Delinquency

    Directory of Open Access Journals (Sweden)

    Sabine Frerichs

    2008-11-01

    Full Text Available Post-Fordist economies come along with post-welfarist societies marked by intensified cultural individualism and increased structural inequalities. These conditions are commonly held to be conducive to relative deprivation and, thereby, anomic crime. At the same time, post-welfarist societies develop a new “balance of power” between institutions providing for welfare regulation, such as the family, the state and the (labour market—and also the penal system. These institutions are generally expected to improve social integration, ensure conformity and thus reduce anomic crime. Combining both perspectives, we analyse the effects of moral individualism, social inequality, and different integration strategies on crime rates in contemporary societies through the lenses of anomie theory. To test our hypotheses, we draw on time-series cross-section data compiled from different data sources (OECD, UN, WHO, WDI for twenty developed countries in the period 1970–2004, and run multiple regressions that control for country-specific effects. Although we find some evidence that the mismatch between cultural ideal (individual inclusion and structural reality (stratified exclusion increases the anomic pressure, whereas conservative (family-based, social-democratic (state-based and liberal (market-based integration strategies to a certain extent prove effective in controlling the incidence of crime, the results are not very robust. Moreover, reservations have to be made regarding the effects of “market” income inequality as well as familialist, unionist and liberalist employment policies that are shown to have reversed effects in our sample: the former reducing, the latter occasionally increasing anomic crime.

  15. Analysis and Control of Key Points in Crime Triangle Pattern%犯罪三角模式中的要素分析与控制

    Institute of Scientific and Technical Information of China (English)

    裴佳黛

    2012-01-01

    Crime is a complicated social phenomenon,which is restricted and affected by various factors.Crime motive,crime ability and crime opportunity are essential elements of crime triangle pattern.They relate to and act on one another.They cause and escalate crimes.Crime prevention can be provided by controlling the three key elements and their formation,and can be obtained by implementing different measures against different elements.%犯罪是一种复杂的社会现象,其产生受到多种因素的制约和影响。犯罪三角模式中的犯罪动机、犯罪能力和犯罪机会是犯罪形成的必备要素,三者相互关联和作用,导致犯罪的发生和升级。预防犯罪可以通过控制犯罪的三个基本要素,特别是从犯罪要素的生成原理和要素可控性的强弱入手,针对不同的要素实施不同的控制,从而实现预防犯罪的目的。

  16. Self-Exciting Point Process Modeling of Crime

    Science.gov (United States)

    2011-03-01

    due to structural prop- erties of a given neighborhood and the latter from behavioral characteristics of individual burglars, police and community re...localized features of neighborhoods , and hence burglary. For all percentages of cells flagged the prospective hotspot map underperforms the point...G., and Ridgeway, G. (2007), “The Impact of Gang Formation on Local Patterns of Crime,” Journal of Research on Crime and Delinquency , 44 (2), 208–237

  17. Localized States in Physics: Solitons and Patterns

    CERN Document Server

    Descalzi, Orazio; Residori, Stefania; Assanto, Gaetano

    2011-01-01

    Systems driven far from thermodynamic equilibrium can create dissipative structures through the spontaneous breaking of symmetries. A particularly fascinating feature of these pattern-forming systems is their tendency to produce spatially confined states. These localized wave packets can exist as propagating entities through space and/or time. Various examples of such systems will be dealt with in this book, including localized states in fluids, chemical reactions on surfaces, neural networks, optical systems, granular systems, population models, and Bose-Einstein condensates.This book should appeal to all physicists, mathematicians and electrical engineers interested in localization in far-from-equilibrium systems. The authors - all recognized experts in their fields - strive to achieve a balance between theoretical and experimental considerations thereby giving an overview of fascinating physical principles, their manifestations in diverse systems, and the novel technical applications on the horizon.

  18. Juvenile Crime, Juvenile Justice. Panel on Juvenile Crime: Prevention, Treatment, and Control.

    Science.gov (United States)

    McCord, Joan, Ed.; Widom, Cathy Spatz, Ed.; Crowell, Nancy A., Ed.

    This book discusses patterns and trends in crimes committed by children and adolescents, analyzing youth crime as a subset of general crime and studying the impact of race and gender. It evaluates different approaches to forecasting future crime rates. Data come from a national panel that examined what is known about juvenile crime and its…

  19. KETERKAITAN WHITE COLLAR CRIME DENGAN CORPORATE CRIME

    OpenAIRE

    R. Dyatmiko Soemodihardjo

    2003-01-01

    White collar crime is a crime that carried out by respected persons, whereas corporate crime is a crime that related to corporation. White collar crime and crime corporate are always related to economic crime. White collar crime can be committed by corporation, that is why a kind of crime emerges namely corporate crime.

  20. Computer Vision Using Local Binary Patterns

    CERN Document Server

    Pietikainen, Matti; Zhao, Guoying; Ahonen, Timo

    2011-01-01

    The recent emergence of Local Binary Patterns (LBP) has led to significant progress in applying texture methods to various computer vision problems and applications. The focus of this research has broadened from 2D textures to 3D textures and spatiotemporal (dynamic) textures. Also, where texture was once utilized for applications such as remote sensing, industrial inspection and biomedical image analysis, the introduction of LBP-based approaches have provided outstanding results in problems relating to face and activity analysis, with future scope for face and facial expression recognition, b

  1. Buffalo: Public Attitudes About Crime; A National Crime Survey Report.

    Science.gov (United States)

    National Criminal Justice Information and Statistics Service (Dept. of Justice/LEAA), Washington, DC.

    The National Crime Survey found that about three-fourths of the Buffalo residents perceived national crime as on the upswing, and one-third sensed an increase locally. Fewer than 10% believed crime in either place declined. Most felt their own victimization rate had increased. Fear of criminal attack appeared largely dependent upon the time of day…

  2. Crime Forecasting System (An exploratory web-based approach

    Directory of Open Access Journals (Sweden)

    Yaseen Ahmed Meenai

    2011-08-01

    Full Text Available With the continuous rise in crimes in some big cities of the world like Karachi and the increasing complexity of these crimes, the difficulties the law enforcing agencies are facing in tracking down and taking out culprits have increased manifold. To help cut back the crime rate, a Crime Forecasting System (CFS can be used which uses historical information maintained by the local Police to help them predict crime patterns with the support of a huge and self-updating database. This system operates to prevent crime, helps in apprehending criminals, and to reduce disorder. This system is also vital in helping the law enforcers in forming a proactive approach by helping them in identifying early warning signs, take timely and necessary actions, and eventually help stop crime before it actually happens. It will also be beneficial in maintaining an up to date database of criminal suspects includes information on arrest records, communication with police department, associations with other known suspects, and membership in gangs/activist groups. After exploratory analysis of the online data acquired from the victims of these crimes, a broad picture of the scenario can be analyzed. The degree of vulnerability of an area at some particular moment can be highlighted by different colors aided by Google Maps. Some statistical diagrams have also been incorporated. The future of CFS can be seen as an information engine for the analysis, study and prediction of crimes.

  3. Research on the Problem of Preparatory Crime (Preparation for a Crime) across the Taiwan Straits -- Against Background of the Punishment Patterns Of Worldwide Preparatory Crime ( Preparation for a Crime)%海峡两岸预备犯(犯罪预备)问题研究——以世界范围内预备犯(犯罪预备)的处罚模式为背景

    Institute of Scientific and Technical Information of China (English)

    刘丽萍

    2012-01-01

    台湾刑法与大陆刑法中分别存在预备犯与犯罪预备概念,两者虽称谓与性质不一,但两者所指涉的对象却同一,表述上的差异并不影响对两者的理解。世界范围内预备犯(犯罪预备)的处罚模式存在较大差异,尤其是立法模式与处罚原则方面。统观世界范围内预备犯(犯罪预备)的处罚模式,台湾刑法与大陆刑法对预备犯(犯罪预备)规定的差异清晰可见,在比较中借鉴与完善是大陆刑法孜孜以求的发展方向。%There are preparatory crime in Criminal Law of Taiwan region of China and preparation for a crime in Criminal Law of mainland in China respectively. Although they are different in appellation and character, they are identical in referent. The differences in expressions don't affect their understanding. There are many differences in the punishment patterns of worldwide preparatory crime ( preparation for a crime), especially in legislative model and punishment principle. When we compare the punishment patterns of worldwide preparatory crime (preparation for a crime), the differences between preparatory crime in Criminal Law of Taiwan region of China and preparation for a Crime in Criminal Law of mainland in China is distinct. Drawing lessons from comparison and consummating the Criminal Law of mainland in China is what we are pursuing.

  4. Hate crimes

    Directory of Open Access Journals (Sweden)

    Kovačević Milica

    2009-01-01

    Full Text Available There is not much interest for the subject of hate crime in our literature. In the article, the author defines hate crime, based on the facts mainly from the Anglosaxon literature, and tries to explain the origin of prejudice. There is a description of factors which can be the cause for these crimes to occur. The author highlights the importance of preventing bias motivated crime. The article ends with some propositions about how to fight hate crimes.

  5. Local binary patterns new variants and applications

    CERN Document Server

    Jain, Lakhmi; Nanni, Loris; Lumini, Alessandra

    2014-01-01

    This book introduces Local Binary Patterns (LBP), arguably one of the most powerful texture descriptors, and LBP variants. This volume provides the latest reviews of the literature and a presentation of some of the best LBP variants by researchers at the forefront of textual analysis research and research on LBP descriptors and variants. The value of LBP variants is illustrated with reported experiments using many databases representing a diversity of computer vision applications in medicine, biometrics, and other areas. There is also a chapter that provides an excellent theoretical foundation for texture analysis and LBP in particular. A special section focuses on LBP and LBP variants in the area of face recognition, including thermal face recognition. This book will be of value to anyone already in the field as well as to those interested in learning more about this powerful family of texture descriptors.

  6. Localized Turing patterns in nonlinear optical cavities

    Science.gov (United States)

    Kozyreff, G.

    2012-05-01

    The subcritical Turing instability is studied in two classes of models for laser-driven nonlinear optical cavities. In the first class of models, the nonlinearity is purely absorptive, with arbitrary intensity-dependent losses. In the second class, the refractive index is real and is an arbitrary function of the intracavity intensity. Through a weakly nonlinear analysis, a Ginzburg-Landau equation with quintic nonlinearity is derived. Thus, the Maxwell curve, which marks the existence of localized patterns in parameter space, is determined. In the particular case of the Lugiato-Lefever model, the analysis is continued to seventh order, yielding a refined formula for the Maxwell curve and the theoretical curve is compared with recent numerical simulation by Gomila et al. [D. Gomila, A. Scroggie, W. Firth, Bifurcation structure of dissipative solitons, Physica D 227 (2007) 70-77.

  7. LOCAL IMMUNITY PATTERNS IN PURULENT WOUNDS

    Directory of Open Access Journals (Sweden)

    K. V. Shmagel

    2010-01-01

    Full Text Available The aim of present study was to determine the microbial pattern and a significance of local pustular immune factors for the progression of local pyogenic infection in surgical patients. To these purpose, specific infectious pathogens were identified and scored by means of conventional microbiological methods in the patients with pyogenic inflammatory diseases of skin and subcutaneous fat tissues. The numbers of purulent leukocytes were determined in the pustular exudates, and concentrations of TNFα, IL-1β, IL-8, IFN-γ, IL-4, IL-1ra, IgM, IgG, and IgA were measured in the samples, using enzyme immunoassay techniques. Appropriate parameters of effluents obtained from "clean" (non-infected surgical lesions were taken as сontrols. It has been shown that Staphylococcus aureus plays a leading role in etiology of bacterial infections in our patients. The amounts of blood cells in pustular samples showed a direct and significant correlation with number of viable microorganisms derived from the effluent. Purulent wound exudates were characterized by high IL-1β and IL-8 concentrations, along with relatively low TNFα levels, as compared with "clean" wounds. Mean amounts of IgG in the pustular contents of dissected lesions proved to be five-fold higher that IgG levels in sterile incisions. As compared with young individuals, the elderly persons are characterized by lesser TNFα production, as well as by more active IL-8 synthesis in the areas of bacterial inflammation. The indexes of local immunity show sufficient differences between the areas of suppurative inflammation and sterile wound lesions.

  8. The Scary World in Your Living Room and Neighborhood: Using Local Broadcast News, Neighborhood Crime Rates, and Personal Experience to Test Agenda Setting and Cultivation.

    Science.gov (United States)

    Gross, Kimberly; Aday, Sean

    2003-01-01

    Tests two important theories in the history of mass communication research, agenda setting and cultivation, by comparing the effects of watching local television news with direct experience measures of crime on issue salience and fear of victimization. Finds that direct experience had no agenda-setting effect but did predict fear. (SG)

  9. A Review of the Statistical and Quantitative Methods Used to Study Alcohol-Attributable Crime

    Science.gov (United States)

    Fitterer, Jessica L.; Nelson, Trisalyn A.

    2015-01-01

    Modelling the relationship between alcohol consumption and crime generates new knowledge for crime prevention strategies. Advances in data, particularly data with spatial and temporal attributes, have led to a growing suite of applied methods for modelling. In support of alcohol and crime researchers we synthesized and critiqued existing methods of spatially and quantitatively modelling the effects of alcohol exposure on crime to aid method selection, and identify new opportunities for analysis strategies. We searched the alcohol-crime literature from 1950 to January 2014. Analyses that statistically evaluated or mapped the association between alcohol and crime were included. For modelling purposes, crime data were most often derived from generalized police reports, aggregated to large spatial units such as census tracts or postal codes, and standardized by residential population data. Sixty-eight of the 90 selected studies included geospatial data of which 48 used cross-sectional datasets. Regression was the prominent modelling choice (n = 78) though dependent on data many variations existed. There are opportunities to improve information for alcohol-attributable crime prevention by using alternative population data to standardize crime rates, sourcing crime information from non-traditional platforms (social media), increasing the number of panel studies, and conducting analysis at the local level (neighbourhood, block, or point). Due to the spatio-temporal advances in crime data, we expect a continued uptake of flexible Bayesian hierarchical modelling, a greater inclusion of spatial-temporal point pattern analysis, and shift toward prospective (forecast) modelling over small areas (e.g., blocks). PMID:26418016

  10. A Review of the Statistical and Quantitative Methods Used to Study Alcohol-Attributable Crime.

    Science.gov (United States)

    Fitterer, Jessica L; Nelson, Trisalyn A

    2015-01-01

    Modelling the relationship between alcohol consumption and crime generates new knowledge for crime prevention strategies. Advances in data, particularly data with spatial and temporal attributes, have led to a growing suite of applied methods for modelling. In support of alcohol and crime researchers we synthesized and critiqued existing methods of spatially and quantitatively modelling the effects of alcohol exposure on crime to aid method selection, and identify new opportunities for analysis strategies. We searched the alcohol-crime literature from 1950 to January 2014. Analyses that statistically evaluated or mapped the association between alcohol and crime were included. For modelling purposes, crime data were most often derived from generalized police reports, aggregated to large spatial units such as census tracts or postal codes, and standardized by residential population data. Sixty-eight of the 90 selected studies included geospatial data of which 48 used cross-sectional datasets. Regression was the prominent modelling choice (n = 78) though dependent on data many variations existed. There are opportunities to improve information for alcohol-attributable crime prevention by using alternative population data to standardize crime rates, sourcing crime information from non-traditional platforms (social media), increasing the number of panel studies, and conducting analysis at the local level (neighbourhood, block, or point). Due to the spatio-temporal advances in crime data, we expect a continued uptake of flexible Bayesian hierarchical modelling, a greater inclusion of spatial-temporal point pattern analysis, and shift toward prospective (forecast) modelling over small areas (e.g., blocks).

  11. Study on the spatial pattern of Shanghai crime based upon GIS%基于GIS的上海市犯罪空间特征研究

    Institute of Scientific and Technical Information of China (English)

    钟海东; 吴健平; 余柏蒗; 王占宏

    2013-01-01

    首先分析了地理信息系统(Geographical Information Systems,GIS)用于城市犯罪研究的优点,并回顾了国内外基于GIS的城市犯罪研究现状.然后,以2006年上海市公安局提供的犯罪数据为基础,对抢劫、敲诈勒索、盗窃和诈骗4类案件进行了数据挖掘分析,并运用ArcGIS进行犯罪特征的空间分析.研究结果表明,上海市外环以内,特别是城市核心区是犯罪最高发区域,同时人民广场也是上海市犯罪的“热点”地区.本研究结果有助于相关部门制订更加有效的预防和打击犯罪的策略.%After discussing the advantages of using GIS in urban crime research and reviewing the research status based on GIS in home and abroad, this paper studied then the spatial pattern of Shanghai crimes (robbery, racketeering, theft and fraud) by applying ArcGIS, based on crime data of 2006 from Shanghai Public Security Bureau. The research shows there is an obvious concentration characteristics of the crime events within the outer ring road of Shanghai, especially in the central urban space, and there is a significant time pattern of Shanghai crimes, with the "hot spot" in the People's Square. The result can be used as a useful support or basis for policy makers and the police departments for active crime attacks and preventions.

  12. The impact of using social media data in crime rate calculations: shifting hot spots and changing spatial patterns

    OpenAIRE

    Malleson, N; Andresen, MA

    2015-01-01

    Crime rate is a statistic used to summarize the risk of criminal events. However, research has shown that choosing the appropriate denominator is non-trivial. Different crime types exhibit different spatial opportunities and so does the population at risk. The residential population is the most commonly used population at risk, but is unlikely to be suitable for crimes that involve mobile populations. In this article, we use "crowd-sourced" data in Leeds, England, to measure the population at...

  13. Urban crime prevention and the logics of public security policies in Brazil – a relational perspective on the local fields of negotiation

    Directory of Open Access Journals (Sweden)

    Haubrich, Dominik

    2015-03-01

    Full Text Available Public security is a highly contested issue in urban societies. It involves, stresses or excludes a wide spectrum of actors, policies and spaces on different scales and time lapse. Meanwhile, public security possesses a central position in the recent transcontextual discussion of area-based urban security studies. Therein, both questions of social change and the spatial, political and economical reflection of (insecurity issues are increasingly concerning the current transforming logic of public security policies. To capture this transformation from a theoretical as well as empirical perspective, this papers looks at the local security governance field in the municipality of São Paulo. It argues that the political field of local crime prevention councils (CONSEG, hosted on the district level once a month, is suited to understand the conceptual shift of the crime control paradigm in general and its spatial translation into discourses, programs, instruments and measures of local security provision in particular.

  14. Completed Local Ternary Pattern for Rotation Invariant Texture Classification

    Directory of Open Access Journals (Sweden)

    Taha H. Rassem

    2014-01-01

    Full Text Available Despite the fact that the two texture descriptors, the completed modeling of Local Binary Pattern (CLBP and the Completed Local Binary Count (CLBC, have achieved a remarkable accuracy for invariant rotation texture classification, they inherit some Local Binary Pattern (LBP drawbacks. The LBP is sensitive to noise, and different patterns of LBP may be classified into the same class that reduces its discriminating property. Although, the Local Ternary Pattern (LTP is proposed to be more robust to noise than LBP, however, the latter’s weakness may appear with the LTP as well as with LBP. In this paper, a novel completed modeling of the Local Ternary Pattern (LTP operator is proposed to overcome both LBP drawbacks, and an associated completed Local Ternary Pattern (CLTP scheme is developed for rotation invariant texture classification. The experimental results using four different texture databases show that the proposed CLTP achieved an impressive classification accuracy as compared to the CLBP and CLBC descriptors.

  15. Local norms of cheating and the cultural evolution of crime and punishment: a study of two urban neighborhoods.

    Science.gov (United States)

    Schroeder, Kari Britt; Pepper, Gillian V; Nettle, Daniel

    2014-01-01

    The prevalence of antisocial behavior varies across time and place. The likelihood of committing such behavior is affected by, and also affects, the local social environment. To further our understanding of this dynamic process, we conducted two studies of antisocial behavior, punishment, and social norms. These studies took place in two neighborhoods in Newcastle Upon Tyne, England. According to a previous study, Neighborhood A enjoys relatively low frequencies of antisocial behavior and crime and high levels of social capital. In contrast, Neighborhood B is characterized by relatively high frequencies of antisocial behavior and crime and low levels of social capital. In Study 1, we used an economic game to assess neighborhood differences in theft, third-party punishment (3PP) of theft, and expectation of 3PP. Participants also reported their perceived neighborhood frequency of cooperative norm violation ("cheating"). Participants in Neighborhood B thought that their neighbors commonly cheat but did not condone cheating. They stole more money from their neighbors in the game, and were less punitive of those who did, than the residents of Neighborhood A. Perceived cheating was positively associated with theft, negatively associated with the expectation of 3PP, and central to the neighborhood difference. Lower trust in one's neighbors and a greater subjective value of the monetary cost of punishment contributed to the reduced punishment observed in Neighborhood B. In Study 2, we examined the causality of cooperative norm violation on expectation of 3PP with a norms manipulation. Residents in Neighborhood B who were informed that cheating is locally uncommon were more expectant of 3PP. In sum, our results provide support for three potentially simultaneous positive feedback mechanisms by which the perception that others are behaving antisocially can lead to further antisocial behavior: (1) motivation to avoid being suckered, (2) decreased punishment of antisocial

  16. Local norms of cheating and the cultural evolution of crime and punishment: a study of two urban neighborhoods

    Directory of Open Access Journals (Sweden)

    Kari Britt Schroeder

    2014-07-01

    Full Text Available The prevalence of antisocial behavior varies across time and place. The likelihood of committing such behavior is affected by, and also affects, the local social environment. To further our understanding of this dynamic process, we conducted two studies of antisocial behavior, punishment, and social norms. These studies took place in two neighborhoods in Newcastle Upon Tyne, England. According to a previous study, Neighborhood A enjoys relatively low frequencies of antisocial behavior and crime and high levels of social capital. In contrast, Neighborhood B is characterized by relatively high frequencies of antisocial behavior and crime and low levels of social capital. In Study 1, we used an economic game to assess neighborhood differences in theft, third-party punishment (3PP of theft, and expectation of 3PP. Participants also reported their perceived neighborhood frequency of cooperative norm violation (“cheating”. Participants in Neighborhood B thought that their neighbors commonly cheat but did not condone cheating. They stole more money from their neighbors in the game, and were less punitive of those who did, than the residents of Neighborhood A. Perceived cheating was positively associated with theft, negatively associated with the expectation of 3PP, and central to the neighborhood difference. Lower trust in one’s neighbors and a greater subjective value of the monetary cost of punishment contributed to the reduced punishment observed in Neighborhood B. In Study 2, we examined the causality of cooperative norm violation on expectation of 3PP with a norms manipulation. Residents in Neighborhood B who were informed that cheating is locally uncommon were more expectant of 3PP. In sum, our results provide support for three potentially simultaneous positive feedback mechanisms by which the perception that others are behaving antisocially can lead to further antisocial behavior: (1 motivation to avoid being suckered, (2 decreased

  17. Violence, Crime, and Violent Crime

    Directory of Open Access Journals (Sweden)

    Richard B. Felson

    2009-05-01

    Full Text Available I propose a dual conceptualization of violent crime. Since violent crime is both violence and crime, theories of aggression and deviance are required to understand it. I argue that both harm-doing and rule breaking are instrumental behaviors and that a bounded rational choice approach can account for both behaviors. However, while some of the causes of harm-doing and deviance (and violent and nonviolent crime are the same, some are different. Theories of crime and deviance cannot explain why one only observes individual and group differences in violent crime and theories of aggression and violence cannot explain why one observes differences in all types of crimes. Such theories are “barking up the wrong tree.”

  18. Local mesh patterns versus local binary patterns: biomedical image indexing and retrieval.

    Science.gov (United States)

    Murala, Subrahmanyam; Wu, Q M Jonathan

    2014-05-01

    In this paper, a new image indexing and retrieval algorithm using local mesh patterns are proposed for biomedical image retrieval application. The standard local binary pattern encodes the relationship between the referenced pixel and its surrounding neighbors, whereas the proposed method encodes the relationship among the surrounding neighbors for a given referenced pixel in an image. The possible relationships among the surrounding neighbors are depending on the number of neighbors, P. In addition, the effectiveness of our algorithm is confirmed by combining it with the Gabor transform. To prove the effectiveness of our algorithm, three experiments have been carried out on three different biomedical image databases. Out of which two are meant for computer tomography (CT) and one for magnetic resonance (MR) image retrieval. It is further mentioned that the database considered for three experiments are OASIS-MRI database, NEMA-CT database, and VIA/I-ELCAP database which includes region of interest CT images. The results after being investigated show a significant improvement in terms of their evaluation measures as compared to LBP, LBP with Gabor transform, and other spatial and transform domain methods.

  19. A method of periodic pattern localization on document images

    Science.gov (United States)

    Chernov, Timofey S.; Nikolaev, Dmitry P.; Kliatskine, Vitali M.

    2015-12-01

    Periodic patterns often present on document images as holograms, watermarks or guilloche elements which are mostly used for fraud protection. Localization of such patterns lets an embedded OCR system to vary its settings depending on pattern presence in particular image regions and improves the precision of pattern removal to preserve as much useful data as possible. Many document images' noise detection and removal methods deal with unstructured noise or clutter on documents with simple background. In this paper we propose a method of periodic pattern localization on document images which uses discrete Fourier transform that works well on documents with complex background.

  20. Demography, foreclosure, and crime:: Assessing spatial heterogeneity in contemporary models of neighborhood crime rates

    Directory of Open Access Journals (Sweden)

    Eric P. Baumer

    2012-05-01

    Full Text Available BACKGROUND The present research evaluates the possibility of spatial heterogeneity in the effects on neighborhood crime rates of both traditional demographic indicators - immigrant concentration, racial composition, socioeconomic disadvantage, and residential instability - and a contemporary aspect of housing transition - foreclosure - that has garnered significant attention in recent scholarship. OBJECTIVE This research advances previous research by explicitly assessing the merits of the typical "global" or "one size fits all" approach that has been applied in most neighborhood studies of demographic context and neighborhood crime rates by juxtaposing it against an alternative strategy - geographically weighted regression (GWR - that highlights the potentially significant "local" variability in model parameters. We assess the local variation of these relationships for census tracts within the city of Chicago. METHODS This paper utilizes GWR to test for spatial heterogeneity in the effects of demographic context and other predictors on neighborhood crime rates. We map local parameter estimates and t-values generated from the GWR models to highlight some of the patterns of demographic context observed in our analysis. CONCLUSIONS GWR results indicate significant variation across Chicago census tracts in the estimates of logged percent black, immigrant concentration, and foreclosure for both robbery and burglary rates. The observed effects of socioeconomic disadvantage on robbery rates and residential stability on burglary rates also are found to vary across local neighborhood clusters in Chicago. Visual inspection of these effects illuminates the importance of supplementing current approaches by "thinking locally" when developing theoretical explanations and empirical models of how demographic context shapes crime rates.

  1. [Economic crime].

    Science.gov (United States)

    Dinitz, S

    1976-01-01

    Economic crime, often also referred to as white collar crime, is one of the most incidious and predatory of offenses. Unlike street crime, for which there may well be some protection, the average citizen is completely at the mercy of the perpetrators of economic crimes. The concept of white collar crime was first identified by Edwin H. Sutherland. He dealt with the problem as a violation of trust involving either or both misrepresentation and duplicity. He argued for the use of criminal sanctions rather than civil remedies as a means of dealing with white collar offenses. Sutherland's views were attacked by the legal profession, by sociologists and criminologists and by public opinion specialists. They contended that an act treated in civil court is not a crime; that criminals are those persons who are defined as such and white collar criminals are neither so defined nor do they define themselves as criminals and, finally, that economic crime is universal. Can anyone be criminal, then, ask the critics? A number of studies by Clinard, Quinney, Black, Ball, Cressey, Newman and others have translated the interest in white collar crime into empirical terms. The last thirty-five years have also witnessed the elaboration and alteration of the theory itself. Geis' work has been particularly important in this respect. His "street" versus "suite" crime is a useful dichotomy. Most important, however, have been the monograph and papers by Herbert Edelhertz who has conceptualized the issues on various levels - from consumer fraud to the illegal activities of the multinational corporation. This article is concerned with the exposition of the theory and research in the field. Most significant, the paper raises serious doubts whether the problem of economic crime can be researched and studied; it raises even more difficult issues concerning the legal and sociological implications of economic crime and of its prevention, management and control.

  2. Finger Vein Recognition Using Local Line Binary Pattern

    Directory of Open Access Journals (Sweden)

    Bakhtiar Affendi Rosdi

    2011-11-01

    Full Text Available In this paper, a personal verification method using finger vein is presented. Finger vein can be considered more secured compared to other hands based biometric traits such as fingerprint and palm print because the features are inside the human body. In the proposed method, a new texture descriptor called local line binary pattern (LLBP is utilized as feature extraction technique. The neighbourhood shape in LLBP is a straight line, unlike in local binary pattern (LBP which is a square shape. Experimental results show that the proposed method using LLBP has better performance than the previous methods using LBP and local derivative pattern (LDP.

  3. Schools, Neighborhood Risk Factors, and Crime

    Science.gov (United States)

    Willits, Dale; Broidy, Lisa; Denman, Kristine

    2013-01-01

    Prior research has identified a link between schools (particularly high schools) and neighborhood crime rates. However, it remains unclear whether the relationship between schools and crime is a reflection of other criminogenic dynamics at the neighborhood level or whether schools influence neighborhood crime patterns independently of other…

  4. Multimedia Content Based Image Retrieval Iii: Local Tetra Pattern

    Directory of Open Access Journals (Sweden)

    Nagaraja G S

    2014-06-01

    Full Text Available Content Based Image Retrieval methods face several challenges while presentation of results and precision levels due to various specific applications. To improve the performance and address these problems a novel algorithm Local Tetra Pattern (LTrP is proposed which is coded in four direction instead of two direction used in Local Binary Pattern (LBP, Local Derivative Pattern (LDP andLocal Ternary Pattern(LTP.To retrieve the images the surrounding neighbor pixel value is calculated by gray level difference, which gives the relation between various multisorting algorithms using LBP, LDP, LTP and LTrP for sorting the images. This method mainly uses low level features such as color, texture and shape layout for image retrieval.

  5. Gender recognition using local binary pattern and Naive Bayes ...

    African Journals Online (AJOL)

    Gender recognition using local binary pattern and Naive Bayes Classifier. ... identity authentication, access control and human-computer interaction amongst others. Gender recognition is a fundamental task for human beings, as many social ...

  6. Cyber Crimes

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    正With the popularization of Internet,cyber crimes have be-come a serious problem facing us.Nowadays cyber criminalsseem to be everywhere on the Internet.To illustrate,somecommit fraud or lift intellectual property,others snatch pass-words or disrupt e-commerce,and still others unleash virusesto crash computers.As a result,these crimes destroy net-work security greatly and make computer users suffer great losses.However,we shouldn't tolerate these cyber criminals any more.It's high timefor us to take effective measures to fight against cyber crimes.

  7. Public concern about serious organised crime

    OpenAIRE

    Bullock, K.; Leeney, D

    2012-01-01

    The 2011 cross-government Organised Crime Strategy (Home Office, 2011) emphasises the need for community safety practitioners to provide information to help citizens recognise when they may be vulnerable to serious organised crime so that they might take steps to prevent victimisation and the need for the state response to serious organised crime to be supported by local communities. Drawing on focus group data, this article examines the nature of public concern about serious organised crime;...

  8. Local Conjecturing Process in the Solving of Pattern Generalization Problem

    Science.gov (United States)

    Sutarto; Nusantara, Toto; Subanji; Sisworo

    2016-01-01

    This aim of this study is to describe the process of local conjecturing in generalizing patterns based on Action, Process, Object, Schema (APOS) theory. The subjects were 16 grade 8 students from a junior high school. Data collection used Pattern Generalization Problem (PGP) and interviews. In the first stage, students completed PGP; in the second…

  9. Skin pattern analysis for lesion classification using local isotropy.

    Science.gov (United States)

    She, Zhishun; Excell, Peter S

    2011-05-01

    The observation that skin pattern tends to be disrupted by malignant skin lesions, but not by benign ones suggests that measurements of skin pattern disruption on simply captured white light optical clinical (WLC) skin images could be a useful contribution to a diagnostic feature set. Previous work, which generated a flow field of skin pattern using a measurement of local line direction and intensity, was encouraging. The aim of this paper is to investigate the possibility of extracting new features using local isotropy metrics to quantify the skin pattern disruption. The skin pattern was extracted from WLC skin images by high-pass filtering. A local tensor matrix was computed. The local isotropy was measured by the condition number of the local tensor matrix. The difference of this measure over the lesion and normal skin areas, combined with the local line direction and the ABCD features, was used as a lesion classifier. A set of images of malignant melanoma and benign naevi was analysed. A one-dimensional scatter plot showed the potential of a local isotropy metric, showing an area of 0.70 under the receiver operating characteristic (ROC) curve. A two-dimensional scatter plot, combined with the local line direction, indicated enhancement of the classification performance, showing an area of 0.89 under the ROC curve. A three-dimensional scatter plot combined with the local line direction and the ABCD features, using principal component analysis, demonstrated excellent separation of benign and malignant lesions. An ROC plot for this case enclosed an area of 0.96. The experimental results show that the local isotropy metric has a potential to increase lesion classifier accuracy. Combined with the local line direction and the ABCD features, it is very promising as a method to distinguish malignant melanoma from benign lesions. © 2010 John Wiley & Sons A/S.

  10. Localized magnetic fields in arbitrary directions using patterned nanomagnets

    DEFF Research Database (Denmark)

    McNeil, Robert P G; Schneble, Jeff; Kataoka, Masaya

    2010-01-01

    Control of the local magnetic fields desirable for spintronics and quantum information technology is not well developed. Existing methods produce either moderately small local fields or one held orientation. We present designs of patterned magnetic elements that produce remanent fields of 50 m...

  11. Dispelling the Myth: An Analysis of Youth and Adult Crime Patterns in California over the Past 20 Years. Policy Report.

    Science.gov (United States)

    Males, Mike; Macallair, Dan

    To examine the theory of growing criminality among today's youths, this study analyzes youth and adult crime rates in California from 1975 to 1991. Data were obtained from the California Department of Justice for arrest statistics by age, race, ethnicity, sex, and offense, statewide and by county and from the state department of finance. From 1978…

  12. Economical Crime Control

    OpenAIRE

    Cook, Philip J.; Jens Ludwig

    2010-01-01

    This paper is the introductory chapter for the forthcoming NBER volume Controlling Crime: Strategies and Tradeoffs. The Great Recession has led to cuts in criminal justice expenditures, and the trend towards ever-higher incarceration rates that has been underway since the 1970s in the U.S. appears to have turned the corner. That raises the question of whether the crime drop can be sustained. State and local revenue shortfalls have engendered intense interest in cost-cutting measures that do n...

  13. Local Geographies of Crime and Punishment in a Plantation Colony: Gender and Incarceration in Barbados, 1878-1928

    Directory of Open Access Journals (Sweden)

    Cecilia A. Green

    2012-12-01

    Full Text Available This article examines gendered profiles of crime and punishment in Barbados between 1878 and 1928. During this period, Barbados stood out from the rest of the Caribbean in levels of imprisonment of women. The context of unusually high levels of female committals to custody – related to (1 women’s prominence in the labor force, (2 entrapment within conditions of near-total plantation monopoly, (3 high levels of male migration and (most importantly criminalization of so-called “abandoned” dependants – provides the backdrop for an examination of penal regimes in Barbados. Using spatial frames, particularly those generated in studies of “colonial geographies,” the article surveys gender differences in crimes, institutional arrangements, and punishments within prison. It also analyzes penal system changes that occurred over the period, signaling the transition to a new disciplinary regime.

  14. Joint Utility of Event-Dependent and Environmental Crime Analysis Techniques for Violent Crime Forecasting

    Science.gov (United States)

    Caplan, Joel M.; Kennedy, Leslie W.; Piza, Eric L.

    2013-01-01

    Violent crime incidents occurring in Irvington, New Jersey, in 2007 and 2008 are used to assess the joint analytical capabilities of point pattern analysis, hotspot mapping, near-repeat analysis, and risk terrain modeling. One approach to crime analysis suggests that the best way to predict future crime occurrence is to use past behavior, such as…

  15. Joint Utility of Event-Dependent and Environmental Crime Analysis Techniques for Violent Crime Forecasting

    Science.gov (United States)

    Caplan, Joel M.; Kennedy, Leslie W.; Piza, Eric L.

    2013-01-01

    Violent crime incidents occurring in Irvington, New Jersey, in 2007 and 2008 are used to assess the joint analytical capabilities of point pattern analysis, hotspot mapping, near-repeat analysis, and risk terrain modeling. One approach to crime analysis suggests that the best way to predict future crime occurrence is to use past behavior, such as…

  16. Local Exact Pattern Matching for Non-Fixed RNA Structures.

    Science.gov (United States)

    Amit, Mika; Backofen, Rolf; Heyne, Steffen; Landau, Gad M; Möhl, Mathias; Otto, Christina; Will, Sebastian

    2014-01-01

    Detecting local common sequence-structure regions of RNAs is a biologically important problem. Detecting such regions allows biologists to identify functionally relevant similarities between the inspected molecules. We developed dynamic programming algorithms for finding common structure-sequence patterns between two RNAs. The RNAs are given by their sequence and a set of potential base pairs with associated probabilities. In contrast to prior work on local pattern matching of RNAs, we support the breaking of arcs. This allows us to add flexibility over matching only fixed structures; potentially matching only a similar subset of specified base pairs. We present an O(n(3)) algorithm for local exact pattern matching between two nested RNAs, and an O(n(3) log n) algorithm for one nested RNA and one bounded-unlimited RNA. In addition, an algorithm for approximate pattern matching is introduced that for two given nested RNAs and a number k, finds the maximal local pattern matching score between the two RNAs with at most k mismatches in O(n(3)k(2)) time. Finally, we present an O(n(3)) algorithm for finding the most similar subforest between two nested RNAs.

  17. CD measurement point extraction from local dense patterns

    Science.gov (United States)

    Miyajima, Masaaki; Matsumoto, Hiroyuki; Takeuchi, Kanji; Naoe, Mitsufumi; Hosono, Koji; Miyauchi, Toru

    2015-07-01

    Precision control of critical dimensions (CD) in modern photomask manufacturing is conventionally accomplished by measuring of CD check patterns allocated inside photomask area. Recently, due to use of immersion and High-NA processes for ArF scanners surface of photomask is subjected to higher energy exposure. Such high energy exposure not only increases the loading effect and the flare but also brings about additional issues such as Cr migration and degradation of MoSi film quality due to its surface oxidation which become a new source of CD deviation. Such phenomenon influence both local pattern shape and its dependence on pattern density and global pattern density and arrangement. To achieve good control of CD in such global environment it is required to measure patterns in the chip device area equivalent to CD check patterns allocated on that chip. However, it is extremely difficult to accurately extract coordinates of patterns for CD measurements inside large device of the chip. We have developed a system in which firstly, using design rule check (DRC) method we extract from the chip device area simple line and space (L/S) patterns similar to CD check patterns and secondly, after bitmap transformation of the extraction result use a convolution operation approach to determine the patterns to measure. We confirmed that our method enables selection of CD measurement points with good reproducibility and stability. Next, we report on details of our method to extract CD measurement points and demonstrate its usefulness due to its excellent reproducibility and stability.

  18. 2D DOST based local phase pattern for face recognition

    Science.gov (United States)

    Moniruzzaman, Md.; Alam, Mohammad S.

    2017-05-01

    A new two dimensional (2-D) Discrete Orthogonal Stcokwell Transform (DOST) based Local Phase Pattern (LPP) technique has been proposed for efficient face recognition. The proposed technique uses 2-D DOST as preliminary preprocessing and local phase pattern to form robust feature signature which can effectively accommodate various 3D facial distortions and illumination variations. The S-transform, is an extension of the ideas of the continuous wavelet transform (CWT), is also known for its local spectral phase properties in time-frequency representation (TFR). It provides a frequency dependent resolution of the time-frequency space and absolutely referenced local phase information while maintaining a direct relationship with the Fourier spectrum which is unique in TFR. After utilizing 2-D Stransform as the preprocessing and build local phase pattern from extracted phase information yield fast and efficient technique for face recognition. The proposed technique shows better correlation discrimination compared to alternate pattern recognition techniques such as wavelet or Gabor based face recognition. The performance of the proposed method has been tested using the Yale and extended Yale facial database under different environments such as illumination variation and 3D changes in facial expressions. Test results show that the proposed technique yields better performance compared to alternate time-frequency representation (TFR) based face recognition techniques.

  19. Two decades of local binary patterns: A survey

    OpenAIRE

    Pietikäinen, Matti; Zhao, Guoying

    2016-01-01

    Texture is an important characteristic for many types of images. In recent years very discriminative and computationally efficient local texture descriptors based on local binary patterns (LBP) have been developed, which has led to significant progress in applying texture methods to different problems and applications. Due to this progress, the division between texture descriptors and more generic image or video descriptors has been disappearing. A large number of different variants of LBP ha...

  20. A Review of the Statistical and Quantitative Methods Used to Study Alcohol-Attributable Crime.

    Directory of Open Access Journals (Sweden)

    Jessica L Fitterer

    Full Text Available Modelling the relationship between alcohol consumption and crime generates new knowledge for crime prevention strategies. Advances in data, particularly data with spatial and temporal attributes, have led to a growing suite of applied methods for modelling. In support of alcohol and crime researchers we synthesized and critiqued existing methods of spatially and quantitatively modelling the effects of alcohol exposure on crime to aid method selection, and identify new opportunities for analysis strategies. We searched the alcohol-crime literature from 1950 to January 2014. Analyses that statistically evaluated or mapped the association between alcohol and crime were included. For modelling purposes, crime data were most often derived from generalized police reports, aggregated to large spatial units such as census tracts or postal codes, and standardized by residential population data. Sixty-eight of the 90 selected studies included geospatial data of which 48 used cross-sectional datasets. Regression was the prominent modelling choice (n = 78 though dependent on data many variations existed. There are opportunities to improve information for alcohol-attributable crime prevention by using alternative population data to standardize crime rates, sourcing crime information from non-traditional platforms (social media, increasing the number of panel studies, and conducting analysis at the local level (neighbourhood, block, or point. Due to the spatio-temporal advances in crime data, we expect a continued uptake of flexible Bayesian hierarchical modelling, a greater inclusion of spatial-temporal point pattern analysis, and shift toward prospective (forecast modelling over small areas (e.g., blocks.

  1. Crime scenes

    DEFF Research Database (Denmark)

    Waade, Anne Marit

    2011-01-01

    The purpose of this article is to illuminate the significance of locations in TV series, in particular in crime series. The author presents different theoretical approaches on settings and landscapes in TV series and crime stories. By analysing both the Swedish and the British versions...... of the Wallander series, the author examines the various types of location used, focusing especially on their dramaturgic and aesthetic roles and on the various ways in which locations are conceptualized in the two series. The analysis also includes extra materials on the DVDs. Finally, the author discusses some...... theoretical and methodological challenges of analysing the significance and impact of locations in TV productions....

  2. Bilge dump detection from SAR imagery using local binary patterns

    CSIR Research Space (South Africa)

    Mdakane, LW

    2015-07-01

    Full Text Available 2015: Remote Sensing: Understanding the Earth for a Safer World, Milan, Italy, 26-31 July 2015 Bilge dump detection from SAR imagery using local binary patterns yz L.W. Mdakane,yz W. Kleynhans,yz C.P. Schwegmann yDepartment of Electrical...

  3. Short local descriptors from 2D connected pattern spectra

    NARCIS (Netherlands)

    Bosilj, Petra; Kijak, Ewa; Wilkinson, Michael H. F.; Lefèvre, Sebastien

    2015-01-01

    We propose a local region descriptor based on connected pattern spectra, and combined with normalized central moments. The descriptors are calculated for MSER regions of the image, and their performance compared against SIFT. The MSER regions were chosen because they can be efficiently selected by c

  4. Localization Using Magnetic Patterns for Autonomous Mobile Robot

    Directory of Open Access Journals (Sweden)

    Won Suk You

    2014-03-01

    Full Text Available In this paper, we present a method of localization using magnetic landmarks. With this method, it is possible to compensate the pose error (xe, ye, θe of a mobile robot correctly and localize its current position on a global coordinate system on the surface of a structured environment with magnetic landmarks. A set of four magnetic bars forms total six different patterns of landmarks and these patterns can be read by the mobile robot with magnetic hall sensors. A sequential motion strategy for a mobile robot is proposed to find the geometric center of magnetic landmarks by reading the nonlinear magnetic field.The mobile robot first moves into the center region of the landmark where it can read the magnetic pattern, after which tracking and global localization can be easily achieved by recognizing the patterns of neighboring landmarks. Experimental results show the effectiveness of the sequential motion strategy for estimating the center of the first encountered landmark as well as the performance of tracking and global localization of the proposed system.

  5. Fingerprint spoof detection using wavelet based local binary pattern

    Science.gov (United States)

    Kumpituck, Supawan; Li, Dongju; Kunieda, Hiroaki; Isshiki, Tsuyoshi

    2017-02-01

    In this work, a fingerprint spoof detection method using an extended feature, namely Wavelet-based Local Binary Pattern (Wavelet-LBP) is introduced. Conventional wavelet-based methods calculate wavelet energy of sub-band images as the feature for discrimination while we propose to use Local Binary Pattern (LBP) operation to capture the local appearance of the sub-band images instead. The fingerprint image is firstly decomposed by two-dimensional discrete wavelet transform (2D-DWT), and then LBP is applied on the derived wavelet sub-band images. Furthermore, the extracted features are used to train Support Vector Machine (SVM) classifier to create the model for classifying the fingerprint images into genuine and spoof. Experiments that has been done on Fingerprint Liveness Detection Competition (LivDet) datasets show the improvement of the fingerprint spoof detection by using the proposed feature.

  6. True Crime

    Directory of Open Access Journals (Sweden)

    Beyer Charlotte

    2017-06-01

    Full Text Available This poem is a creative response to contemporary true crime narratives about baby farming in Victorian times, namely Alison Rattle and Allison Vale’s The Woman Who Murdered Babies for Money: The Story of Amelia Dyer (London: André Deutsch, 2011; and the TV documentary, “Amelia Dyer: Martina Cole’s Lady Killers.”

  7. Local mesh quantized extrema patterns for image retrieval.

    Science.gov (United States)

    Koteswara Rao, L; Venkata Rao, D; Reddy, L Pratap

    2016-01-01

    In this paper, we propose a new feature descriptor, named local mesh quantized extrema patterns (LMeQEP) for image indexing and retrieval. The standard local quantized patterns collect the spatial relationship in the form of larger or deeper texture pattern based on the relative variations in the gray values of center pixel and its neighbors. Directional local extrema patterns explore the directional information in 0°, 90°, 45° and 135° for a pixel positioned at the center. A mesh structure is created from a quantized extrema to derive significant textural information. Initially, the directional quantized data from the mesh structure is extracted to form LMeQEP of given image. Then, RGB color histogram is built and integrated with the LMeQEP to enhance the performance of the system. In order to test the impact of proposed method, experimentation is done with bench mark image repositories such as MIT VisTex and Corel-1k. Avg. retrieval rate and avg. retrieval precision are considered as the evaluation metrics to record the performance level. The results from experiments show a considerable improvement when compared to other recent techniques in the image retrieval.

  8. Quantifying Locality in the Memory Access Patterns of HPCApplications

    Energy Technology Data Exchange (ETDEWEB)

    Weinberg, Jonathan; Snavely, Allan; McCracken, Michael O.; Strohmaier, Erich

    2005-07-25

    Several benchmarks for measuring memory performance of HPC systems along dimensions of spatial and temporal memory locality have recently been proposed. However, little is understood about the relationships of these benchmarks to real applications and to each other. In this paper, we propose a methodology for producing architecture-neutral characterizations of the spatial and temporal locality exhibited by the memory access patterns of applications. We demonstrate that the results track intuitive notions of spatial and temporal locality on several synthetic and application benchmarks. We employ the methodology to analyze the memory performance components of the HPC Challenge Benchmarks, the Apex-MAP benchmark, and their relationships to each other and other benchmarks and applications. We show that this analysis can be used to both increase understanding of the benchmarks and enhance their usefulness by mapping them, along with applications, to a 2-D space along axes of spatial and temporal locality.

  9. Breast mass classification on mammograms using radial local ternary patterns.

    Science.gov (United States)

    Muramatsu, Chisako; Hara, Takeshi; Endo, Tokiko; Fujita, Hiroshi

    2016-05-01

    Textural features can be useful in differentiating between benign and malignant breast lesions on mammograms. Unlike previous computerized schemes, which relied largely on shape and margin features based on manual contours of masses, textural features can be determined from regions of interest (ROIs) without precise lesion segmentation. In this study, therefore, we investigated an ROI-based feature, namely, radial local ternary patterns (RLTP), which takes into account the direction of edge patterns with respect to the center of masses for classification of ROIs for benign and malignant masses. Using an artificial neural network (ANN), support vector machine (SVM) and random forest (RF) classifiers, the classification abilities of RLTP were compared with those of the regular local ternary patterns (LTP), rotation invariant uniform (RIU2) LTP, texture features based on the gray level co-occurrence matrix (GLCM), and wavelet features. The performance was evaluated with 376 ROIs including 181 malignant and 195 benign masses. The highest areas under the receiver operating characteristic curves among three classifiers were 0.90, 0.77, 0.78, 0.86, and 0.83 for RLTP, LTP, RIU2-LTP, GLCM, and wavelet features, respectively. The results indicate the usefulness of the proposed texture features for distinguishing between benign and malignant lesions and the superiority of the radial patterns compared with the conventional rotation invariant patterns.

  10. Monitoring correlative financial data streams by local pattern similarity

    Institute of Scientific and Technical Information of China (English)

    Tao JIANG; Yu-cai FENG; Bin ZHANG; Zhong-sheng CAO; Ge FU; Jie SHI

    2009-01-01

    Developing tools for monitoring the correlations among thousands of financial data streams in all online fashion can be interesting and useful work.We aimed to find highly correlative financial data steams in local patterns.A novel distance metric function slope duration distance(SDD)is proposed,which is compatible with the characteristics of actual financial data streams.Moreover, a model monitoring correlations among local patterns(MCALP)is presented,which dramatically decreases the computational cost using an algorithm quickly online segmenting and pruning(QONSP)with O(1)time cost at each time tick t,and our proposed new grid structure.Experimental results showed that MCALP provides an improvement of several orders of magnitude in performance relative to traditional naive linear scan techniques and maintains high precision.Furthermore,the model is incremental,parallelizable,and has a quick response time.

  11. Multi-texture local ternary pattern for face recognition

    Science.gov (United States)

    Essa, Almabrok; Asari, Vijayan

    2017-05-01

    In imagery and pattern analysis domain a variety of descriptors have been proposed and employed for different computer vision applications like face detection and recognition. Many of them are affected under different conditions during the image acquisition process such as variations in illumination and presence of noise, because they totally rely on the image intensity values to encode the image information. To overcome these problems, a novel technique named Multi-Texture Local Ternary Pattern (MTLTP) is proposed in this paper. MTLTP combines the edges and corners based on the local ternary pattern strategy to extract the local texture features of the input image. Then returns a spatial histogram feature vector which is the descriptor for each image that we use to recognize a human being. Experimental results using a k-nearest neighbors classifier (k-NN) on two publicly available datasets justify our algorithm for efficient face recognition in the presence of extreme variations of illumination/lighting environments and slight variation of pose conditions.

  12. Texture Classification in Lung CT Using Local Binary Patterns

    DEFF Research Database (Denmark)

    Sørensen, Lauge Emil Borch Laurs; Shaker, Saher B.; de Bruijne, Marleen

    2008-01-01

    Abstract In this paper we propose to use local binary patterns (LBP) as features in a classification framework for classifying different texture patterns in lung computed tomography. Image intensity is included by means of the joint LBP and intensity histogram, and classification is performed using...... the k nearest neighbor classifier with histogram similarity as distance measure. The proposed method is evaluated on a set of 168 regions of interest comprising normal tissue and different emphysema patterns, and compared to a filter bank based on Gaussian derivatives. The joint LBP and intensity...... histogram, achieving a classification accuracy of 95.2%, shows superior performance to using the common approach of taking moments of the filter response histograms as features, and slightly better performance than using the full filter response histograms instead. Classification results are better than...

  13. Specific and Complete Local Integration of Patterns in Bayesian Networks

    Directory of Open Access Journals (Sweden)

    Martin Biehl

    2017-05-01

    Full Text Available We present a first formal analysis of specific and complete local integration. Complete local integration was previously proposed as a criterion for detecting entities or wholes in distributed dynamical systems. Such entities in turn were conceived to form the basis of a theory of emergence of agents within dynamical systems. Here, we give a more thorough account of the underlying formal measures. The main contribution is the disintegration theorem which reveals a special role of completely locally integrated patterns (what we call ι-entities within the trajectories they occur in. Apart from proving this theorem we introduce the disintegration hierarchy and its refinement-free version as a way to structure the patterns in a trajectory. Furthermore, we construct the least upper bound and provide a candidate for the greatest lower bound of specific local integration. Finally, we calculate the ι -entities in small example systems as a first sanity check and find that ι -entities largely fulfil simple expectations.

  14. Color Local Binary Patterns for Image Indexing and Retrieval

    Directory of Open Access Journals (Sweden)

    K. N. Prakash

    2014-08-01

    Full Text Available A new algorithm meant for content based image retrieval (CBIR is presented in this paper. First the RGB (red, green, and blue image is converted into HSV (hue, saturation, and value image, then the H and S images are used for histogram calculation by quantizing into Q levels and the local region of V (value image is represented by local binary patterns (LBP, which are evaluated by taking into consideration of local difference between the center pixel and its neighbors. LBP extracts the information based on distribution of edges in an image. Two experiments have been carried out for proving the worth of our algorithm. It is further mentioned that the database considered for experiments are Corel 1000 database (DB1, and MIT VisTex database (DB2. The results after being investigated show a significant improvement in terms of their evaluation measures as compared to LBP on RGB spaces separately and other existing techniques.

  15. Sexual disorders and crime.

    Science.gov (United States)

    Taborda, José G V; Michalski-Jaeger, Camila A

    2012-09-01

    Highlighting the relationship between sexual disorders and crime, reviewing and summarizing the articles published throughout 2011 which add to the current knowledge on this subject. Studies on specific populations confirm the association between sexual disorders and crime, particularly between paraphilias and sexual crimes regarding male offenders. Female offenders are less likely to be diagnosed with a sexual disorder. Some case reports focus on unusual paraphilias and lead us to question the vast possibilities of paraphilic contents and sexual arousal patterns. The variations of paraphilic-associated sexual arousal patterns, unconventional sex behaviors or paraphilic disorders are constantly changing. In this sense, the American Psychiatric Association's DSM-5 current proposals for a sexual dysfunction diagnostic category are under intense discussion because of their important clinical and forensic consequences. Sexual violence is a theme not well understood yet. Because of its nature, researching it can raise many ethical problems. There is no possibility of clinical trials and of case-control studies. Even cohort studies may be problematic in themselves. So, most of the research involves biased samples or case reports, or is merely theoretical. Further research is needed to improve our understanding of the subject, so that preventive and rehabilitative measures can be taken.

  16. Crime and Mental Wellbeing

    OpenAIRE

    Cornaglia, Francesca; Naomi E. Feldman; Leigh, Andrew

    2014-01-01

    We provide empirical evidence of crime's impact on the mental wellbeing of both victims and non-victims. We differentiate between the direct impact to victims and the indirect impact to society due to the fear of crime. The results show a decrease in mental wellbeing after violent crime victimization and that the violent crime rate has a negative impact on mental wellbeing of non-victims. Property crime victimization and property crime rates show no such comparable impact. Finally, we estimat...

  17. General business model patterns for Local Energy Management concepts

    Directory of Open Access Journals (Sweden)

    Emanuele eFacchinetti

    2016-03-01

    Full Text Available The transition towards a more sustainable global energy system, significantly relying on renewable energies and decentralized energy systems, requires a deep reorganization of the energy sector. The way how energy services are generated, delivered and traded is expected to be very different in the coming years. Business model innovation is recognized as a key driver for the successful implementation of the energy turnaround. This work contributes to this topic by introducing a heuristic methodology easing the identification of general business model patterns best suited for Local Energy Management concepts such as Energy Hubs. A conceptual framework characterizing the Local Energy Management business model solution space is developed. Three reference business model patterns providing orientation across the defined solution space are identified, analyzed and compared. Through a market review a number of successfully implemented innovative business models have been analyzed and allocated within the defined solution space. The outcomes of this work offer to potential stakeholders a starting point and guidelines for the business model innovation process, as well as insights for policy makers on challenges and opportunities related to Local Energy Management concepts.

  18. Fabric Defect Detection Using Modified Local Binary Patterns

    Directory of Open Access Journals (Sweden)

    A. Sheikhi

    2008-01-01

    Full Text Available Local binary patterns (LBPs are one of the features which have been used for texture classification. In this paper, a method based on using these features is proposed for fabric defect detection. In the training stage, at first step, LBP operator is applied to an image of defect free fabric, pixel by pixel, and the reference feature vector is computed. Then this image is divided into windows and LBP operator is applied to each of these windows. Based on comparison with the reference feature vector, a suitable threshold for defect free windows is found. In the detection stage, a test image is divided into windows and using the threshold, defective windows can be detected. The proposed method is multiresolution and gray scale invariant and can be used for defect detection in patterned and unpatterned fabrics. Because of its simplicity, online implementation is possible as well.

  19. Automatic Detection of Ringworm using Local Binary Pattern (LBP)

    CERN Document Server

    Kundu, Srimanta; Nasipuri, Mita

    2011-01-01

    In this paper we present a novel approach for automatic recognition of ring worm skin disease based on LBP (Local Binary Pattern) feature extracted from the affected skin images. The proposed method is evaluated by extensive experiments on the skin images collected from internet. The dataset is tested using three different classifiers i.e. Bayesian, MLP and SVM. Experimental results show that the proposed methodology efficiently discriminates between a ring worm skin and a normal skin. It is a low cost technique and does not require any special imaging devices.

  20. Infrared target recognition based on improved joint local ternary pattern

    Science.gov (United States)

    Sun, Junding; Wu, Xiaosheng

    2016-05-01

    This paper presents a simple, efficient, yet robust approach, named joint orthogonal combination of local ternary pattern, for automatic forward-looking infrared target recognition. It gives more advantages to describe the macroscopic textures and microscopic textures by fusing variety of scales than the traditional LBP-based methods. In addition, it can effectively reduce the feature dimensionality. Further, the rotation invariant and uniform scheme, the robust LTP, and soft concave-convex partition are introduced to enhance its discriminative power. Experimental results demonstrate that the proposed method can achieve competitive results compared with the state-of-the-art methods.

  1. Local pattern classification differentiates processes of economic valuation.

    Science.gov (United States)

    Clithero, John A; Carter, R McKell; Huettel, Scott A

    2009-05-01

    For effective decision making, individuals must be able to form subjective values from many types of information. Yet, the neural mechanisms that underlie potential differences in value computation across different decision scenarios are incompletely understood. Here, we used functional magnetic resonance imaging (fMRI), in conjunction with the machine learning technique of support vector machines (SVM), to identify brain regions that contain unique local information associated with different types of valuation. We used a combinatoric approach that evaluated the unique contributions of different brain regions to model generalization strength. Local voxel patterns in left posterior parietal cortex contained unique information differentiating probabilistic and intertemporal valuation, a result that was not accessible using standard fMRI analyses. We conclude that the early valuation phases for these reward types differ on a fine spatial scale, suggesting the existence of computational topographies along the value construction pathway.

  2. Local structure co-occurrence pattern for image retrieval

    Science.gov (United States)

    Zhang, Ke; Zhang, Fan; Lu, Jia; Lu, Yinghua; Kong, Jun; Zhang, Ming

    2016-03-01

    Image description and annotation is an active research topic in content-based image retrieval. How to utilize human visual perception is a key approach to intelligent image feature extraction and representation. This paper has proposed an image feature descriptor called the local structure co-occurrence pattern (LSCP). LSCP extracts the whole visual perception for an image by building a local binary structure, and it is represented by a color-shape co-occurrence matrix which explores the relationship of multivisual feature spaces according to visual attention mechanism. As a result, LSCP not only describes low-level visual features integrated with texture feature, color feature, and shape feature but also bridges high-level semantic comprehension. Extensive experimental results on an image retrieval task on the benchmark datasets, corel-10,000, MIT VisTex, and INRIA Holidays, have demonstrated the usefulness, effectiveness, and robustness of the proposed LSCP.

  3. Glaucoma detection based on local binary patterns in fundus photographs

    Science.gov (United States)

    Alsheh Ali, Maya; Hurtut, Thomas; Faucon, Timothée.; Cheriet, Farida

    2014-03-01

    Glaucoma, a group of diseases that lead to optic neuropathy, is one of the most common reasons for blindness worldwide. Glaucoma rarely causes symptoms until the later stages of the disease. Early detection of glaucoma is very important to prevent visual loss since optic nerve damages cannot be reversed. To detect glaucoma, purely data-driven techniques have advantages, especially when the disease characteristics are complex and when precise image-based measurements are difficult to obtain. In this paper, we present our preliminary study for glaucoma detection using an automatic method based on local texture features extracted from fundus photographs. It implements the completed modeling of Local Binary Patterns to capture representative texture features from the whole image. A local region is represented by three operators: its central pixel (LBPC) and its local differences as two complementary components, the sign (which is the classical LBP) and the magnitude (LBPM). An image texture is finally described by both the distribution of LBP and the joint-distribution of LBPM and LBPC. Our images are then classified using a nearest-neighbor method with a leave-one-out validation strategy. On a sample set of 41 fundus images (13 glaucomatous, 28 non-glaucomatous), our method achieves 95:1% success rate with a specificity of 92:3% and a sensitivity of 96:4%. This study proposes a reproducible glaucoma detection process that could be used in a low-priced medical screening, thus avoiding the inter-experts variability issue.

  4. The Socialization Process of Street Children in the Youth Gangs and Groups of Organized Crime in Local Community. Preliminary Report

    Directory of Open Access Journals (Sweden)

    Małgorzata Michel

    2013-12-01

    Full Text Available This article includes the research report on the socialization process of children in the street, youth gangs, and organized criminal groups in local communities. The author has analysed the signs and communication codes located on walls in local communities. This is very important to the socialization process of the youth street gangs.

  5. Applying Geostatistical Analysis to Crime Data: Car-Related Thefts in the Baltic States

    Science.gov (United States)

    Kerry, Ruth; Goovaerts, Pierre; Haining, Robert P.; Ceccato, Vania

    2011-01-01

    Geostatistical methods have rarely been applied to area-level offense data. This article demonstrates their potential for improving the interpretation and understanding of crime patterns using previously analyzed data about car-related thefts for Estonia, Latvia, and Lithuania in 2000. The variogram is used to inform about the scales of variation in offense, social, and economic data. Area-to-area and area-to-point Poisson kriging are used to filter the noise caused by the small number problem. The latter is also used to produce continuous maps of the estimated crime risk (expected number of crimes per 10,000 habitants), thereby reducing the visual bias of large spatial units. In seeking to detect the most likely crime clusters, the uncertainty attached to crime risk estimates is handled through a local cluster analysis using stochastic simulation. Factorial kriging analysis is used to estimate the local- and regional-scale spatial components of the crime risk and explanatory variables. Then regression modeling is used to determine which factors are associated with the risk of car-related theft at different scales. PMID:22190762

  6. OPTIMIZED LOCAL TERNARY PATTERNS: A NEW TEXTURE MODEL WITH SET OF OPTIMAL PATTERNS FOR TEXTURE ANALYSIS

    Directory of Open Access Journals (Sweden)

    G. Madasamy Raja

    2013-01-01

    Full Text Available Texture analysis is one of the important as well as useful tasks in image processing applications. Many texture models have been developed over the past few years and Local Binary Patterns (LBP is one of the simple and efficient approach among them. A number of extensions to the LBP method have been also presented but the problem remains challenging in feature vector generation and comparison. As textures are oriented and scaled differently, a texture model should effectively handle grey-scale variation, rotation variation, illumination variation and noise. The length of the feature vector in a texture model also plays an important role in deciding the time complexity of the texture analysis. This study proposes a new texture model, called Optimized Local Ternary Patterns (OLTP in the spatial methods of texture analysis. The proposed texture model is based on Local Ternary Patterns (LTP, which in turn is based on LBP. A new concept called “Level of Optimality” to select the optimal set of patterns is discussed in this study. This proposed texture model uses only optimal patterns to extract the textural information from the digital images and thereby reducing the length of the feature vector. This proposed model is robust to image rotation, grey-scale transformation, histogram equalization and noise. The results are compared with other widely used texture models by applying classification tests to variety of texture images from the standard Brodatz texture database. Experimental results prove that the proposed texture model is robust to grey-scale variation, image rotation, histogram equalization and noise. Experimental results also show that the proposed texture model improves the classification accuracy and the speed of the classification process. In all tested tasks, the proposed method outperforms the earlier methods.

  7. Job Displacement and Crime

    DEFF Research Database (Denmark)

    Bennett, Patrick; Ouazad, Amine

    We use a detailed employer-employee data set matched with detailed crime information (timing of crime, fines, convictions, crime type) to estimate the impact of job loss on an individual's probability to commit crime. We focus on job losses due to displacement, i.e. job losses in firms losing...

  8. "Another case of Ruthless Robbery…" Violence, Crime and the Local Press in a provincial City of Greece

    Directory of Open Access Journals (Sweden)

    Stratos Georgoulas

    2013-11-01

    Full Text Available This paper’s basic hypothesis is that the press, through the presentation of criminal incidents, transmits an evaluative knowledge determining this way, desirable objectives and propagating for canonistic types of behaviour. The daily knowledge as a constitutive element of the daily reality is a condition of interaction between the members of a society. In that sense, the local press that transmits this daily knowledge constitutes a dominant structuring factor of this reality.The research which is based on content analysis of newspaper articles of the whole local press of Mytilene (the capital of the prefecture of Lesbos in Greece published between January – March 2004 and additional interviews from journalists aims to illustrate the following:a. The concept of criminality is being constructed both qualitatively and quantitatively through local press and not vice versa.b. The local press evaluates negatively illegal behaviours, positively the austerisation of social control, while in most cases it cancels any relevance with the social frame of criminality.c. The local press with the dramatic narrations that uses it causes fear of victimisation.d. The journalists transmit evaluative knowledge in an attempt to cover the lack of knowledge of real criminological data.

  9. La prevención comunitaria del delito a través de la gobernanza local (The community crime prevention through local governance

    Directory of Open Access Journals (Sweden)

    Jorge Francisco Aguirre Sala

    2016-12-01

    Full Text Available El objetivo de este estudio es mostrar el mayor número de comunes denominadores en cuatro prácticas latinoamericanas exitosas de la prevención del delito. El análisis se hizo con una metodología cualitativa, de índole de diseño teórico y codificación axial. El marco teórico vinculó la participación ciudadana con la gobernanza para sintetizar las perspectivas social, ambiental y situacional de la prevención en el modelo comunitario. Los datos se recolectaron en indicadores de procesos y no de impacto. En los resultados destacan: la asociación entre ciudadanos y autoridades, la gestión de derechos sociales y el empoderamiento ciudadano a través del presupuesto participativo. | The objective of this study is to show the most number of common denominators in four successful Latin American practices in crime prevention. The analysis was done with a qualitative methodology of theoretical design nature and axial coding. The theoretical framework links the citizen participation with governance to synthesize the social, environmental and situational prevention prospects in the Community model. Data were collected on process indicators rather than impact indicators. The main results are: the association between citizens and authorities, the management of social rights and citizen empowerment through participatory budget.

  10. Local knowledge, pattern and diversity of use of Sclerocarya birrea

    Directory of Open Access Journals (Sweden)

    Assogbadjo Achille E

    2011-02-01

    Full Text Available Abstract Background Growing interest is on food tree species in general, and particularly indigenous fruit tree species in developing countries since they are inherent to most tropical landscapes and serve the dual function of local livelihood support and biodiversity conservation. It is therefore relevant to assess the level of integration of these species in local cultures and the factors affecting them. This study aims at assessing knowledge and uses of Sclerocarya birrea subsp. birrea and factors affecting the use values within and between communities. Methods This study combines quantitative and qualitative ethnobotanical approaches to investigate uses and factors affecting the use value of S. birrea subsp. birrea. Nine group discussions as well as 161 individual interviews were held in the dry and typical Sudanian zones. Seven different ethnic groups were involved and the survey focused on local uses and perception of factors affecting the dynamics of S. birrea. Results The species has a multitude of uses; all organs are used for more than 20 different purposes. The study highlights how gender, local availability, ethnicity and community location interact to influence the utilization value of the species. People living in drier areas with high occurrence of the S. birrea use it more than those living in wetter areas with low occurrence. While domestic and subsistence uses do not appear to threaten the species, carving, clearing and drought stand out as the major causes of its decline. Conclusions Many factors and their interactions influence the use pattern of the species within and between communities. When compared to the level of exploitation of S. birrea subsp. caffra in southern Africa, the subspecies birrea is at this point relatively underutilized. A high commercial potential exists due to its simple propagation ability and makes it an interesting agroforestry resource.

  11. Numerical investigation of local defectiveness control of diblock copolymer patterns

    Directory of Open Access Journals (Sweden)

    D. Jeong

    2016-09-01

    Full Text Available We numerically investigate local defectiveness control of self-assembled diblock copolymer patterns through appropriate substrate design. We use a nonlocal Cahn-Hilliard (CH equation for the phase separation dynamics of diblock copolymers. We discretize the nonlocal CH equation by an unconditionally stable finite difference scheme on a tapered trench design and, in particular, we use Dirichlet, Neumann, and periodic boundary conditions. The value at the Dirichlet boundary comes from an energy-minimizing equilibrium lamellar profile. We solve the resulting discrete equations using a Gauss-Seidel iterative method. We perform various numerical experiments such as effects of channel width, channel length, and angle on the phase separation dynamics. The simulation results are consistent with the previous experimental observations.

  12. Orthogonal combination of local binary patterns for dynamic texture recognition

    Science.gov (United States)

    Chen, Yin; Guo, Xuejun; Klein, Dominik

    2015-12-01

    Dynamic texture (DT) is an extension of texture to the temporal domain. Recognizing DTs has received increasing attention. Volume local binary pattern (VLBP) is the most widely used descriptor for DTs. However, it is time consuming to recognize DTs using VLBP due to the large scale of data and the high dimensionality of the descriptor itself. In this paper, we propose a new operator called orthogonal combination of VLBP (OC-VLBP) for DT recognition. The original VLBP is decomposed both longitudinally and latitudinally, and then combined to constitute the OC-VLBP operator, so that the dimensionality of the original VLBP descriptor is lowered. The experimental results show that the proposed operator significantly reduces the computational costs of recognizing DTs without much loss in recognizing accuracy.

  13. Local current mapping and patterning of reduced graphene oxide.

    Science.gov (United States)

    Mativetsky, Jeffrey M; Treossi, Emanuele; Orgiu, Emanuele; Melucci, Manuela; Veronese, Giulio Paolo; Samorì, Paolo; Palermo, Vincenzo

    2010-10-13

    Conductive atomic force microscopy (C-AFM) has been used to correlate the detailed structural and electrical characteristics of graphene derived from graphene oxide. Uniform large currents were measured over areas exceeding tens of micrometers in few-layer films, supporting the use of graphene as a transparent electrode material. Moreover, defects such as electrical discontinuities were easily detected. Multilayer films were found to have a higher conductivity per layer than single layers. It is also shown that a local AFM-tip-induced electrochemical reduction process can be used to pattern conductive pathways on otherwise-insulating graphene oxide. Transistors with micrometer-scale tip-reduced graphene channels that featured ambipolar transport and an 8 order of magnitude increase in current density upon reduction were successfully fabricated.

  14. Face Recognition Using Local Quantized Patterns and Gabor Filters

    Science.gov (United States)

    Khryashchev, V.; Priorov, A.; Stepanova, O.; Nikitin, A.

    2015-05-01

    The problem of face recognition in a natural or artificial environment has received a great deal of researchers' attention over the last few years. A lot of methods for accurate face recognition have been proposed. Nevertheless, these methods often fail to accurately recognize the person in difficult scenarios, e.g. low resolution, low contrast, pose variations, etc. We therefore propose an approach for accurate and robust face recognition by using local quantized patterns and Gabor filters. The estimation of the eye centers is used as a preprocessing stage. The evaluation of our algorithm on different samples from a standardized FERET database shows that our method is invariant to the general variations of lighting, expression, occlusion and aging. The proposed approach allows about 20% correct recognition accuracy increase compared with the known face recognition algorithms from the OpenCV library. The additional use of Gabor filters can significantly improve the robustness to changes in lighting conditions.

  15. Lower arm electromyography (EMG) activity detection using local binary patterns.

    Science.gov (United States)

    McCool, Paul; Chatlani, Navin; Petropoulakis, Lykourgos; Soraghan, John J; Menon, Radhika; Lakany, Heba

    2014-09-01

    This paper presents a new electromyography activity detection technique in which 1-D local binary pattern histograms are used to distinguish between periods of activity and inactivity in myoelectric signals. The algorithm is tested on forearm surface myoelectric signals occurring due to hand gestures. The novel features of the presented method are that: 1) activity detection is performed across multiple channels using few parameters and without the need for majority vote mechanisms, 2) there are no per-channel thresholds to be tuned, which makes the process of activity detection easier and simpler to implement and less prone to errors, 3) it is not necessary to measure the properties of the signal during a quiescent period before using the algorithm. The algorithm is compared to other offline single- and double-threshold activity detection methods and, for the data sets tested, it is shown to have a better overall performance with greater tolerance to the noise in the real data set used.

  16. Dominant Local Binary Pattern Based Face Feature Selection and Detection

    Directory of Open Access Journals (Sweden)

    Kavitha.T

    2010-04-01

    Full Text Available Face Detection plays a major role in Biometrics.Feature selection is a problem of formidable complexity. Thispaper proposes a novel approach to extract face features forface detection. The LBP features can be extracted faster in asingle scan through the raw image and lie in a lower dimensional space, whilst still retaining facial information efficiently. The LBP features are robust to low-resolution images. The dominant local binary pattern (DLBP is used to extract features accurately. A number of trainable methods are emerging in the empirical practice due to their effectiveness. The proposed method is a trainable system for selecting face features from over-completes dictionaries of imagemeasurements. After the feature selection procedure is completed the SVM classifier is used for face detection. The main advantage of this proposal is that it is trained on a very small training set. The classifier is used to increase the selection accuracy. This is not only advantageous to facilitate the datagathering stage, but, more importantly, to limit the training time. CBCL frontal faces dataset is used for training and validation.

  17. Young People's Crimes

    Institute of Scientific and Technical Information of China (English)

    许爱平

    2002-01-01

    Crime is a very serious problem in Britain. One sort of crime which particularly worries people is juvenile crimes-that is, crimes committed (犯罪) by young. people.For some years juvenile crimes have been increasing.There are two main sorts of juvenile crimes:stealing and violence(暴力).

  18. Media and Crime

    DEFF Research Database (Denmark)

    Agger, Gunhild; Waade, Anne Marit

    2011-01-01

    Recent developments in the relationship between media and crime are analyzed, taking both fiction and journalism in account......Recent developments in the relationship between media and crime are analyzed, taking both fiction and journalism in account...

  19. The SAPS crime statistics

    African Journals Online (AJOL)

    Every year, the South African Minister of Police releases the crime statistics in ... prove an invaluable source of information for those who seek to better understand and respond to crime ... of Social Development in the JCPS may suggest a.

  20. Education Policy and Crime

    OpenAIRE

    Lochner, Lance

    2010-01-01

    This paper discusses the relationship between education and crime from an economic perspective, developing a human capital-based model that sheds light on key ways in which early childhood programs and policies that encourage schooling may affect both juvenile and adult crime. The paper first discusses evidence on the effects of educational attainment, school quality, and school enrollment on crime. Next, the paper discusses evidence on the crime reduction effects of preschool programs like P...

  1. Mercados ilegais, redes de proteção e organização local do crime no Rio de Janeiro Illegal markets, protection rackets and Organized Crime in Rio de Janeiro

    Directory of Open Access Journals (Sweden)

    Michel Misse

    2007-12-01

    Full Text Available Ao tratar da variedade de situações criminais que caem sob a qualificação de "Crime Organizado", este artigo apresenta a evolução das principais redes de mercados ilegais no Rio de Janeiro - o jogo do bicho, o tráfico de drogas, as "mercadorias políticas" -, para argumentar que a compra e venda de mercadorias políticas (extorsões e corrupção, venda de proteção, acesso a informações sobre operações policiais etc. constitui uma das principais chaves para a compreensão da acumulação social da violência no Rio de Janeiro.By dealing with a variety of criminal situations that are qualified as "Organized Crime", this article presents the evolution of the main networks of illegal markets in Rio de Janeiro - "jogo do bicho" (the animal game - an illegal gambling pastime in Brazil, the drug trade, and "political commodities" - , in order to argue that the sales and acquisition of these political commodities (such as extortions, corruption, sales of protection, access to information on police operations etc. constitutes one of the key concepts in understanding the social accumulation of violence in the city.

  2. Job Displacement and Crime

    DEFF Research Database (Denmark)

    Bennett, Patrick; Ouazad, Amine

    This paper matches a comprehensive Danish employer-employee data set with individual crime information (timing of offenses, charges, convictions, and prison terms by crime type) to estimate the impact of job displacement on an individual’s propensity to commit crime. We focus on displaced individ...

  3. Crime and Partnerships

    DEFF Research Database (Denmark)

    Svarer, Michael

    This paper tests whether being convicted of a crime affects marriage market outcomes. While it is relatively well documented that crime hurts in terms of reduced future income, there has been little systematic analysis on the association between crime and marriage market outcomes. This paper expl...

  4. Analysis of Wireless Capsule Endoscopy Images using Local Binary Patterns

    Directory of Open Access Journals (Sweden)

    Adriana Florentina CONSTANTINESCU

    2015-06-01

    Full Text Available Wireless capsule endoscopy, the gold standard in the screening and diagnosis of small bowel diseases, is one of the most recent investigations for gastrointestinal pathology. This examination has the advantages of being non-invasive, painless, with a large clinical yield, especially for small bowel diseases, but also some disadvantages. The long time necessary for reading and interpreting all frames acquired is one of these disadvantages. This inconvenient could be improved through different methods by using software applications. In this study we have used a software application for texture analysis based on local binary pattern (LBP operator. This operator detects and removes non-informative frames in a first step, then identifies potential lesions. Our study group consisted of 33 patients from the Gastroenterology and Hepatology Centre Craiova and from the 1st Internal Medicine and Gastroenterology Clinic from the Emergency County Hospital of Craiova. The patients included in the study have corresponded to our inclusion criteria established. The exclusion criteria were represented by the contraindications of the capsule endoscopy. In the first phase of the study, we have removed the non-informative frames from the original videos obtained, and we have acquired an average reduction of 6.96% from the total number of images. In the second phase, using the same LBP operator, we have correctly identified 93.16% of telangiectasia lesions. Our study demonstrated that software applications based on LBP operator can lead to a shorter analysis time, by reducing the overall frames number, and can also provide support in diagnosis.

  5. URBAN REVITALIZATION AND SEATTLE CRIME, 1982-2000.

    Science.gov (United States)

    Kreager, Derek A; Lyons, Christopher J; Hays, Zachary R

    2011-11-01

    This study examines the relationship between crime and processes of urban revitalization, or gentrification. Drawing on recent urban demography research, we hypothesize that gentrification progressed rapidly in many American cities over the last decade of the 20(th) century, and that these changes had implications for area crime rates. Criminological theories hold competing hypotheses for the connections between gentrification and crime, and quantitative studies of this link remain infrequent and limited. Using two measures of gentrification and longitudinal tract-level demographic and crime data for the city of Seattle, we find that many of Seattle's downtown tracts underwent rapid revitalization during the 1990's, and that these areas 1) saw reductions in crime relative to similar tracts that did not gentrify, and 2) were areas with higher-than-average crime at the beginning of the decade. Moreover, using a within-tract longitudinal design, we find that yearly housing investments in the 1980's showed a modest positive association with crime change, while yearly investments in the 1990's showed the opposite pattern. Our findings suggest a curvilinear gentrification-crime relationship, whereby gentrification in its earlier stages is associated with small increases in crime, but gentrification in its more consolidated form is associated with modest crime declines. Implications of these results for criminological theory, urban development, and broader crime patterns are discussed.

  6. Integrated approach to improving local CD uniformity in EUV patterning

    Science.gov (United States)

    Liang, Andrew; Hermans, Jan; Tran, Timothy; Viatkina, Katja; Liang, Chen-Wei; Ward, Brandon; Chuang, Steven; Yu, Jengyi; Harm, Greg; Vandereyken, Jelle; Rio, David; Kubis, Michael; Tan, Samantha; Dusa, Mircea; Singhal, Akhil; van Schravendijk, Bart; Dixit, Girish; Shamma, Nader

    2017-03-01

    Extreme ultraviolet (EUV) lithography is crucial to enabling technology scaling in pitch and critical dimension (CD). Currently, one of the key challenges of introducing EUV lithography to high volume manufacturing (HVM) is throughput, which requires high source power and high sensitivity chemically amplified photoresists. Important limiters of high sensitivity chemically amplified resists (CAR) are the effects of photon shot noise and resist blur on the number of photons received and of photoacids generated per feature, especially at the pitches required for 7 nm and 5 nm advanced technology nodes. These stochastic effects are reflected in via structures as hole-to-hole CD variation or local CD uniformity (LCDU). Here, we demonstrate a synergy of film stack deposition, EUV lithography, and plasma etch techniques to improve LCDU, which allows the use of high sensitivity resists required for the introduction of EUV HVM. Thus, to improve LCDU to a level required by 5 nm node and beyond, film stack deposition, EUV lithography, and plasma etch processes were combined and co-optimized to enhance LCDU reduction from synergies. Test wafers were created by depositing a pattern transfer stack on a substrate representative of a 5 nm node target layer. The pattern transfer stack consisted of an atomically smooth adhesion layer and two hardmasks and was deposited using the Lam VECTOR PECVD product family. These layers were designed to mitigate hole roughness, absorb out-of-band radiation, and provide additional outlets for etch to improve LCDU and control hole CD. These wafers were then exposed through an ASML NXE3350B EUV scanner using a variety of advanced positive tone EUV CAR. They were finally etched to the target substrate using Lam Flex dielectric etch and Kiyo conductor etch systems. Metrology methodologies to assess dimensional metrics as well as chip performance and defectivity were investigated to enable repeatable patterning process development. Illumination

  7. Localized Bioconvection Patterns and Their Initial State Dependency in Euglena gracilis Suspensions in an Annular Container

    Science.gov (United States)

    Shoji, Erika; Nishimori, Hiraku; Awazu, Akinori; Izumi, Shunsuke; Iima, Makoto

    2014-04-01

    Localized patterns of bioconvection in Euglena gracilis suspensions were experimentally analyzed in an annular container. Near the critical mean density of convection, we succeeded in isolating two basic types of localized convection patterns. One was an almost stationary pattern consisting of two convection cells centered by an isolated high-density region of the microorganism where a downflow was generated, which we call a "bioconvection unit". The other was a traveling wave pattern consisting of an array of moving high-density waves bounded in a certain area. The effect of the mean density of E. gracilis on the emergence of the localized convection pattern was also examined. Near the critical mean density, we found that the emergence probability of the localized convection pattern depends on the initial state, i.e., whether E. gracilis has a uniform or localized distribution, which suggests that the system is bistable. Such bistability is often accompanied by localized structures in spatially extended dissipative systems.

  8. Regional Crime Rates and Fear of Crime: WISIND Findings

    OpenAIRE

    Bug, Mathias; Kroh, Martin; Meier, Kristina

    2015-01-01

    Many people are afraid of falling prey to crime. The present report investigates the extent to which this fear is in line with the actual regional crime rates. This analysis is based on data from a comprehensive database on the fear of crime, combined with police crime statistics (specifically, adjusted crime statistics which factor in the "dark figure" of unreported crime). No evidence was found to support the (occasionally voiced) contention that the fear of falling prey to crime is irratio...

  9. Regional crime rates and fear of crime: WISIND findings

    OpenAIRE

    Bug, Mathias; Kroh, Martin; Meier, Kristina

    2015-01-01

    Many people are afraid of falling prey to crime. The present report investigates the extent to which this fear is in line with the actual regional crime rates. This analysis is based on data from a comprehensive database on the fear of crime, combined with police crime statistics (specifically, adjusted crime statistics which factor in the "dark figure" of unreported crime). No evidence was found to support the (occasionally voiced) contention that the fear of falling prey to crime is irratio...

  10. Crime and German Decadence

    DEFF Research Database (Denmark)

    Hansen, Kim Toft

    subjects are dealt with collectively and in doing so he establishes new grounds for reflection on crime and culture – both factual and fictional representation as such. Approaches to crime fiction often build on an acknowledged history of the genre which, then, reproduces an established concord...... the boundaries of understanding the cultural and historical roots of genre and crime fiction. Nevertheless, the missing link in dealing with crime fiction – even though Nestingen takes certain steps in that direction – is often its connection to criminological and cultural studies. If we approach crime stories...

  11. Full moon and crime.

    Science.gov (United States)

    Thakur, C P; Sharma, D

    The incidence of crimes reported to three police stations in different towns (one rural, one urban, one industrial) was studied to see if it varied with the day of the lunar cycle. The period of the study covered 1978-82. The incidence of crimes committed on full moon days was much higher than on all other days, new moon days, and seventh days after the full moon and new moon. A small peak in the incidence of crimes was observed on new moon days, but this was not significant when compared with crimes committed on other days. The incidence of crimes on equinox and solstice days did not differ significantly from those on other days, suggesting that the sun probably does not influence the incidence of crime. The increased incidence of crimes on full moon days may be due to "human tidal waves" caused by the gravitational pull of the moon.

  12. The flow patterning capability of localized natural convection.

    Science.gov (United States)

    Huang, Ling-Ting; Chao, Ling

    2016-09-14

    Controlling flow patterns to align materials can have various applications in optics, electronics, and biosciences. In this study, we developed a natural-convection-based method to create desirable spatial flow patterns by controlling the locations of heat sources. Fluid motion in natural convection is induced by the spatial fluid density gradient that is caused by the established spatial temperature gradient. To analyze the patterning resolution capability of this method, we used a mathematical model combined with nondimensionalization to correlate the flow patterning resolution with experimental operating conditions. The nondimensionalized model suggests that the flow pattern and resolution is only influenced by two dimensionless parameters, and , where Gr is the Grashof number, representing the ratio of buoyancy to the viscous force acting on a fluid, and Pr is the Prandtl number, representing the ratio of momentum diffusivity to thermal diffusivity. We used the model to examine all of the flow behaviors in a wide range of the two dimensionless parameter group and proposed a flow pattern state diagram which suggests a suitable range of operating conditions for flow patterning. In addition, we developed a heating wire with an angular configuration, which enabled us to efficiently examine the pattern resolution capability numerically and experimentally. Consistent resolutions were obtained between the experimental results and model predictions, suggesting that the state diagram and the identified operating range can be used for further application.

  13. Weighted Local Active Pixel Pattern (WLAPP for Face Recognition in Parallel Computation Environment

    Directory of Open Access Journals (Sweden)

    Gundavarapu Mallikarjuna Rao

    2013-10-01

    Full Text Available Abstract  - The availability of multi-core technology resulted totally new computational era. Researchers are keen to explore available potential in state of art-machines for breaking the bearer imposed by serial computation. Face Recognition is one of the challenging applications on so ever computational environment. The main difficulty of traditional Face Recognition algorithms is lack of the scalability. In this paper Weighted Local Active Pixel Pattern (WLAPP, a new scalable Face Recognition Algorithm suitable for parallel environment is proposed.  Local Active Pixel Pattern (LAPP is found to be simple and computational inexpensive compare to Local Binary Patterns (LBP. WLAPP is developed based on concept of LAPP. The experimentation is performed on FG-Net Aging Database with deliberately introduced 20% distortion and the results are encouraging. Keywords — Active pixels, Face Recognition, Local Binary Pattern (LBP, Local Active Pixel Pattern (LAPP, Pattern computing, parallel workers, template, weight computation.  

  14. An enhanced feature set for pattern recognition based contrast enhancement of contact-less captured latent fingerprints in digitized crime scene forensics

    Science.gov (United States)

    Hildebrandt, Mario; Kiltz, Stefan; Dittmann, Jana; Vielhauer, Claus

    2014-02-01

    In crime scene forensics latent fingerprints are found on various substrates. Nowadays primarily physical or chemical preprocessing techniques are applied for enhancing the visibility of the fingerprint trace. In order to avoid altering the trace it has been shown that contact-less sensors offer a non-destructive acquisition approach. Here, the exploitation of fingerprint or substrate properties and the utilization of signal processing techniques are an essential requirement to enhance the fingerprint visibility. However, especially the optimal sensory is often substrate-dependent. An enhanced generic pattern recognition based contrast enhancement approach for scans of a chromatic white light sensor is introduced in Hildebrandt et al.1 using statistical, structural and Benford's law2 features for blocks of 50 micron. This approach achieves very good results for latent fingerprints on cooperative, non-textured, smooth substrates. However, on textured and structured substrates the error rates are very high and the approach thus unsuitable for forensic use cases. We propose the extension of the feature set with semantic features derived from known Gabor filter based exemplar fingerprint enhancement techniques by suggesting an Epsilon-neighborhood of each block in order to achieve an improved accuracy (called fingerprint ridge orientation semantics). Furthermore, we use rotation invariant Hu moments as an extension of the structural features and two additional preprocessing methods (separate X- and Y Sobel operators). This results in a 408-dimensional feature space. In our experiments we investigate and report the recognition accuracy for eight substrates, each with ten latent fingerprints: white furniture surface, veneered plywood, brushed stainless steel, aluminum foil, "Golden-Oak" veneer, non-metallic matte car body finish, metallic car body finish and blued metal. In comparison to Hildebrandt et al.,1 our evaluation shows a significant reduction of the error rates

  15. Crime scene investigation, reporting, and reconstuction (CSIRR)

    Science.gov (United States)

    Booth, John F.; Young, Jeffrey M.; Corrigan, Paul

    1997-02-01

    Graphic Data Systems Corporation (GDS Corp.) and Intellignet Graphics Solutions, Inc. (IGS) combined talents in 1995 to design and develop a MicroGDSTM application to support field investiations of crime scenes, such as homoicides, bombings, and arsons. IGS and GDS Corp. prepared design documents under the guidance of federal, state, and local crime scene reconstruction experts and with information from the FBI's evidence response team field book. The application was then developed to encompass the key components of crime scene investigaton: staff assigned to the incident, tasks occuring at the scene, visits to the scene location, photogrpahs taken of the crime scene, related documents, involved persons, catalogued evidence, and two- or three- dimensional crime scene reconstruction. Crime scene investigation, reporting, and reconstruction (CSIRR$CPY) provides investigators with a single applicaiton for both capturing all tabular data about the crime scene and quickly renderng a sketch of the scene. Tabular data is captured through ituitive database forms, while MicroGDSTM has been modified to readily allow non-CAD users to sketch the scene.

  16. Exploring Paradigms of Crime Reduction

    DEFF Research Database (Denmark)

    Soothill, Keith; Christoffersen, Mogens N.; Hussain, Azhar

    2010-01-01

    Using Danish registers for a 1980 birth cohort of 29,944 males with parental information and following up these cases for 25 years, the study considers four paradigms of crime reduction (parental child rearing, structural factors around adolescence, locality and individual resources). Focusing...... have more widespread benefits, but the assumed causal links need to be further explored. The use of population registers, under controlled conditions, provides an important window on criminal careers....

  17. Organized Crime, Corruption and Punishment

    OpenAIRE

    Kugler, Maurice; Verdier, Thierry; Zenou, Yves

    2003-01-01

    We analyze an oligopoly model in which differentiated criminal organizations globally compete on criminal activities and engage in local corruption to avoid punishment. When law enforcers are sufficiently well-paid, difficult to bribe and corruption detection highly probable, we show that increasing policing or sanctions effectively deters crime. However, when bribing costs are low, that is badly-paid and dishonest law enforcers work in a weak governance environment, and the rents from crimin...

  18. Does Religious Involvement Generate or Inhibit Fear of Crime?

    Directory of Open Access Journals (Sweden)

    Todd Matthews

    2011-09-01

    Full Text Available In victimology, fear of crime is understood as an emotional response to the perceived threat of crime. Fear of crime has been found to be affected by several variables besides local crime rates and personal experiences with victimization. This study examines the relationship between religion and fear of crime, an underexplored topic in the criminological literature. This gap is rather surprising given the central role religion has been found to play in shaping the attitudes and perceptions of congregants. In particular, religion has been found to foster generalized trust, which should engender lower levels of distrust or misanthropy, including that which is directed towards a general fear of crime. OLS regression was performed using data from the West Georgia Area Survey (n = 380. Controlling for demographic, community involvement, and political ideology variables, frequency of religious attendance was significantly and negatively associated with fear of property crime. This relationship remained even after a perceived neighborhood safety variable was introduced to the model. However, religious attendance was not significantly related to fear of violent crime, and religious orientation was unrelated to fear of property and violent crime. These results suggest that religious involvement conditionally reduces fear of crime, and the authors recommend that future research explore relationships between religion and fear of crime.

  19. Crime as tourism externality

    OpenAIRE

    Biagi, Bianca; Detotto, Claudio

    2010-01-01

    This paper analyses the linkage between tourism and crime with particular focus on the distortions generated onto criminal activities by the presence of visitors. Controlling for socio-demographic and economic variables, we empirically investigate the contribution of tourist arrivals to different types of crimes for 103 Italian provinces and for the year 2005. Possible spill-over effects of crime are taken into account by testing two spatial models (one spatial lag model and one spatial error...

  20. Crime and immigration

    OpenAIRE

    Bell, Brian

    2014-01-01

    Immigration is one of the most important policy debates in Western countries. However, one aspect of the debate is often mischaracterized by accusations that higher levels of immigration lead to higher levels of crime. The evidence, based on empirical studies of many countries, indicates that there is no simple link between immigration and crime. Crucially, the evidence points to substantial differences in the impact on property crime, depending on the labor market opportunities of immigrant ...

  1. The Economics of Crime: Investigating the Drugs-Crime Channel

    OpenAIRE

    Entorf, Horst; Winker, Peter

    2002-01-01

    The rising trends both in drug addiction and crime rates are of major public concern in Germany. Surprisingly, the economic theory of crime seems to ignore the drugs-crime nexus, whereas the criminological literature considers illicit drug use a main reason of criminal activities. This paper provides an econometric assessment of the drugs-crime channel within a Becker-Ehrlich model of crime supply. We analyse three different channels from drug abuse to crime: system-related, economic-related ...

  2. The Economics of Crime: Investigating the Drugs-Crime Channel

    OpenAIRE

    Entorf, Horst; Winker, Peter

    2002-01-01

    The rising trends both in drug addiction and crime rates are of major public concern in Germany. Surprisingly, the economic theory of crime seems to ignore the drugs-crime nexus, whereas the criminological literature considers illicit drug use a main reason of criminal activities. This paper provides an econometric assessment of the drugs-crime channel within a Becker-Ehrlich model of crime supply. We analyse three different channels from drug abuse to crime: system-related, economic-related ...

  3. Does the Magnitude of the Link between Unemployment and Crime Depend on the Crime Level? A Quantile Regression Approach

    Directory of Open Access Journals (Sweden)

    Horst Entorf

    2015-07-01

    Full Text Available Two alternative hypotheses – referred to as opportunity- and stigma-based behavior – suggest that the magnitude of the link between unemployment and crime also depends on preexisting local crime levels. In order to analyze conjectured nonlinearities between both variables, we use quantile regressions applied to German district panel data. While both conventional OLS and quantile regressions confirm the positive link between unemployment and crime for property crimes, results for assault differ with respect to the method of estimation. Whereas conventional mean regressions do not show any significant effect (which would confirm the usual result found for violent crimes in the literature, quantile regression reveals that size and importance of the relationship are conditional on the crime rate. The partial effect is significantly positive for moderately low and median quantiles of local assault rates.

  4. Job Displacement and Crime

    DEFF Research Database (Denmark)

    Bennett, Patrick; Ouazad, Amine

    individuals, i.e. high-tenure workers with strong attachment to their firm, who lose employment during a mass-layoff event. Pre-displacement data suggests no evidence of endogenous selection of workers for displacement during mass-layoffs: displaced workers’ propensity to commit crime exhibits...... theory of crime. Marital dissolution is more likely post-displacement, and we find small intra-family externalities of adult displacement on younger family members’ crime. The impact of displacement on crime is stronger in municipalities with higher capital and labor income inequalities....

  5. Stability of localized bioconvection patterns of Euglena suspensions

    Science.gov (United States)

    Iima, Makoto; Yamaguchi, Takayuki

    2015-11-01

    Suspension of Euglena gracilis forms localized convection cells when it is illuminated form below with strong light intensity. Two elementary localized structures are known. One consists of a single region of high number density of the microorganism sandwiched with a pair of convection cells (bioconvection unit) and the other is a localized traveling wave. Measurements of the flux of the number density suggests that the photomovement due to light gradient plays an important role in generating localized convection cells. We proposed a hydrodynamic model incorporating the effect, and succeed in reproducing bioconvection unit, which can be characterized as steady solutions of the proposed model. Bifurcation structure of the solutions are analyzed. The bistable region due to the subcritical bifurcation from trivial state and folding of branch due the saddle-node bifurcation is observed. The stability analysis in the bistable region revealed that the most unstable mode represents a sweep of number density to the central part and reducing the size of the convection cells, which leads the unstable solution to the stable steady solution representing bioconvection unit. KAKENHI (26400396).

  6. Crime Seasonality: Examining the Temporal Fluctuations of Property Crime in Cities With Varying Climates.

    Science.gov (United States)

    Linning, Shannon J; Andresen, Martin A; Brantingham, Paul J

    2016-03-17

    This study investigates whether crime patterns fluctuate periodically throughout the year using data containing different property crime types in two Canadian cities with differing climates. Using police report data, a series of ordinary least squares (OLS; Vancouver, British Columbia) and negative binomial (Ottawa, Ontario) regressions were employed to examine the corresponding temporal patterns of property crime in Vancouver (2003-2013) and Ottawa (2006-2008). Moreover, both aggregate and disaggregate models were run to examine whether different weather and temporal variables had a distinctive impact on particular offences. Overall, results suggest that cities that experience greater variations in weather throughout the year have more distinct increases of property offences in the summer months and that different climate variables affect certain crime types, thus advocating for disaggregate analysis in the future.

  7. Crime Mapping and Geographical Information Systems in Crime Analysis

    Directory of Open Access Journals (Sweden)

    Murat Dağlar

    2016-04-01

    Full Text Available As essential apparatus in crime analysis, crime mapping and Geographical Information Systems (GIS are being progressively more accepted by police agencies. Development in technology and the accessibility of geographic data sources make it feasible for police departments to use GIS and crime mapping. GIS and crime mapping can be utilized as devices to discover reasons contributing to crime, and hence let law enforcement agencies proactively take action against the crime problems before they become challenging. The purpose of this study is to conduct a literature review of Geographical Information System and Crime Mapping in Crime Analysis and to propose policy recommendations regarding to implementation of crime mapping and GIS. To achieve this purpose, first a historical evaluation of GIS and crime mapping will be rendered and then the importance of place will be explained in terms of assessing crime problems accurately.

  8. The nature of crime : Is cheating necessary for cooperation?

    Science.gov (United States)

    Machalek, R; Cohen, L E

    1991-09-01

    The classical social theorist Emile Durkheim proposed the counterintuitive thesis that crime is beneficial for society because it provokes punishment, which enhances social solidarity. His logic, however, is blemished by a reified view of society that leads to group-selectionist thinking and a teleological account of the causes of crime. Reconceptualization of the relationship between crime and punishment in terms of evolutionary game theory, however, suggests that crime (cheating) may confer benefits on cooperating individuals by promoting stability in their patterns of cooperation.

  9. Job Displacement and Crime

    DEFF Research Database (Denmark)

    Bennett, Patrick; Ouazad, Amine

    that displaced workers' propensity to commit crime is higher than non-displaced workers before the displacement event; but it is significantly higher afterwards. Displacement impacts crime over and above what is explained by earnings losses and weeks of unemployment following displacement....

  10. Crime and Corruption

    Science.gov (United States)

    Duong, Deborah; Turner, Robert; Selke, Karl

    Like intergroup violence (Chap. 7) and insurgency (Chap. 8), crime and ­corruption are nearly inevitable companions of an international intervention. Both contribute to the reasons why the intervention occurs, and both may even grow and fester as side-effects of an intervention. Moreover, crime and corruption frequently serve as obstacles to a successful termination of an intervention.

  11. Youth Crime Drop. Report.

    Science.gov (United States)

    Butts, Jeffrey A.

    This report examines the recent drop in violent crime in the United States, discussing how much of the decrease seen between 1995-99 is attributable to juveniles (under age 18 years) and older youth (18-24 years). Analysis of current FBI arrest data indicates that not only did America's violent crime drop continue through 1999, but falling youth…

  12. Analysis and Prediction of Crimes by Clustering and Classification

    Directory of Open Access Journals (Sweden)

    Rasoul Kiani

    2015-08-01

    Full Text Available Crimes will somehow influence organizations and institutions when occurred frequently in a society. Thus, it seems necessary to study reasons, factors and relations between occurrence of different crimes and finding the most appropriate ways to control and avoid more crimes. The main objective of this paper is to classify clustered crimes based on occurrence frequency during different years. Data mining is used extensively in terms of analysis, investigation and discovery of patterns for occurrence of different crimes. We applied a theoretical model based on data mining techniques such as clustering and classification to real crime dataset recorded by police in England and Wales within 1990 to 2011. We assigned weights to the features in order to improve the quality of the model and remove low value of them. The Genetic Algorithm (GA is used for optimizing of Outlier Detection operator parameters using RapidMiner tool.

  13. The case for survey-based comparative measures of crime

    NARCIS (Netherlands)

    van Dijk, Jan

    2015-01-01

    The author argues that statistics of police-recorded crimes have limited utility for cross-country analyses of crime, due to varying legal definitions, reporting patterns and recording practices. In his view stand alone national victimisation surveys, with their varying methodologies and questionnai

  14. Testing Incapacitation Theory: Youth Crime and Incarceration in California

    Science.gov (United States)

    Stahlkopf, Christina; Males, Mike; Macallair, Daniel

    2010-01-01

    Under incapacitation theory, higher incarceration rates are expected to correlate with accelerated reductions in crime. California's contemporary incarceration patterns offer an opportunity to analyze the validity of this theory, particularly as it applies to young people. This study focuses on California's juvenile incarceration and crime trends…

  15. Application of local binary pattern and human visual Fibonacci texture features for classification different medical images

    Science.gov (United States)

    Sanghavi, Foram; Agaian, Sos

    2017-05-01

    The goal of this paper is to (a) test the nuclei based Computer Aided Cancer Detection system using Human Visual based system on the histopathology images and (b) Compare the results of the proposed system with the Local Binary Pattern and modified Fibonacci -p pattern systems. The system performance is evaluated using different parameters such as accuracy, specificity, sensitivity, positive predictive value, and negative predictive value on 251 prostate histopathology images. The accuracy of 96.69% was observed for cancer detection using the proposed human visual based system compared to 87.42% and 94.70% observed for Local Binary patterns and the modified Fibonacci p patterns.

  16. A New Fast Method for Determining Local Properties of Striped Patterns

    CERN Document Server

    Egolf, D A; Bodenschatz, E; Egolf, David A.; Melnikov, Ilarion V.; Bodenschatz, Eberhard

    1997-01-01

    From the striped coats of zebras to the ripples in windblown sand, the natural world abounds with locally banded patterns. Such patterns have been of great interest throughout history, and, in the last twenty years, scientists in a wide variety of fields have been studying the patterns formed in well-controlled experiments that yield enormous quantities of high-precision data. These experiments involving phenomena as diverse as chemical reactions in shallow layers, thermal convection in horizontal fluid layers, periodically shaken layers of sand, and the growth of slime mold colonies often display patterns that appear qualitatively similar. Methods are needed to characterize in a reasonable amount of time the differences and similarities in patterns that develop in different systems, as well as in patterns formed in one system for different experimental conditions. In this Letter, we introduce a novel, fast method for determining local pattern properties such as wavenumber, orientation, and curvature as a fun...

  17. Assaults, murders and walkers: The impact of violent crime on physical activity.

    Science.gov (United States)

    Janke, Katharina; Propper, Carol; Shields, Michael A

    2016-05-01

    We investigate an underexplored externality of crime: the impact of violent crime on individuals' participation in walking. For many adults walking is the only regular physical activity. We use a sample of nearly 1 million people in 323 small areas in England between 2005 and 2011 matched to quarterly crime data at the small area level. Within area variation identifies the causal effect of local violent crime on walking and a difference-in-difference analysis of two high-profile crimes corroborates our results. We find a significant deterrent effect of violent crime on walking that translates into a drop in overall physical activity.

  18. Fluctuation scaling, Taylor's law, and crime.

    Directory of Open Access Journals (Sweden)

    Quentin S Hanley

    Full Text Available Fluctuation scaling relationships have been observed in a wide range of processes ranging from internet router traffic to measles cases. Taylor's law is one such scaling relationship and has been widely applied in ecology to understand communities including trees, birds, human populations, and insects. We show that monthly crime reports in the UK show complex fluctuation scaling which can be approximated by Taylor's law relationships corresponding to local policing neighborhoods and larger regional and countrywide scales. Regression models applied to local scale data from Derbyshire and Nottinghamshire found that different categories of crime exhibited different scaling exponents with no significant difference between the two regions. On this scale, violence reports were close to a Poisson distribution (α = 1.057 ± 0.026 while burglary exhibited a greater exponent (α = 1.292 ± 0.029 indicative of temporal clustering. These two regions exhibited significantly different pre-exponential factors for the categories of anti-social behavior and burglary indicating that local variations in crime reports can be assessed using fluctuation scaling methods. At regional and countrywide scales, all categories exhibited scaling behavior indicative of temporal clustering evidenced by Taylor's law exponents from 1.43 ± 0.12 (Drugs to 2.094 ± 0081 (Other Crimes. Investigating crime behavior via fluctuation scaling gives insight beyond that of raw numbers and is unique in reporting on all processes contributing to the observed variance and is either robust to or exhibits signs of many types of data manipulation.

  19. Crime and Crime Management in Nigeria Tertiary Institutions

    Science.gov (United States)

    Adebanjo, Margaret Adewunmi

    2014-01-01

    This paper examines crime and its management in Nigerian tertiary institutions. Tertiary institutions today have become arenas for crime activities such as rape, cultism, murder, theft, internet fraud, drug abuse, and examination malpractices. This paper delves into what crime is, and its causes; and the positions of the law on crime management.…

  20. Assault Injury Rates, Social Capital, and Fear of Neighborhood Crime

    Science.gov (United States)

    Kruger, Daniel J.; Hutchison, Peter; Monroe, Matthew G.; Reischl, Thomas; Morrel-Samuels, Susan

    2007-01-01

    This study develops an explanatory framework for fear of neighborhood crime based on respondents' social context and local rates of assault injuries. Rates of assault injuries within zip codes are based on hospital discharge records. We find that only four variables have a significant unique contribution to fear of crime: respondent's sex,…

  1. Illumination normalization based on simplified local binary patterns for a face verification system

    NARCIS (Netherlands)

    Tao, Q.; Veldhuis, Raymond N.J.

    2007-01-01

    Illumination normalization is a very important step in face recognition. In this paper we propose a simple implementation of Local Binary Patterns, which effectively reduces the variability caused by illumination changes. In combination with a likelihood ratio classifier, this illumination

  2. Eggs illusion: Local shape deformation generated by a grid pattern.

    Science.gov (United States)

    Qian, Kun; Mitsudo, Hiroyuki

    2016-12-01

    In this study, we report a new visual shape illusion, the eggs illusion, in which circular disks located at the midpoints between adjacent grid intersections are perceived as being deformed to ellipses. In Experiment 1, we examined the eggs illusion by using a matching method and found that grid luminance and patch size play a critical role in producing the illusory deformation. In Experiment 2, we employed several types of elliptic or circular patches to examine the conditions in which the illusory deformation was cancelled or weakened. We observed that the illusory deformation was dependent on local grid orientation. Based on these results, we found several common features between the eggs illusion and the scintillating grid illusion. This resemblance suggests a possibility that similar mechanisms underlie the two phenomena. In addition to the scintillating grid illusion, we also considered several known perceptual phenomena that might be related to the eggs illusion, i.e., the apparent size illusion, the shape-contrast effect, and the Orbison illusion. Finally, we discuss the role of orientation processing in generating the eggs illusion.

  3. Understanding and controlling hot spots of crime: the importance of formal and informal social controls.

    Science.gov (United States)

    Weisburd, David; Groff, Elizabeth R; Yang, Sue-Ming

    2014-02-01

    Primary, secondary, and tertiary prevention programs that address opportunity or structural factors related to crime are usually delivered to entire cities, sections of cities or to specific neighborhoods, but our results indicate geographically targeting these programs to specific street segments may increase their efficacy. We link crime incidents to over 24,000 street segments (the two block faces on a street between two intersections) over a 16-year period, and identify distinct developmental patterns of crime at street segments using group-based trajectory analysis. One of these patterns, which we term chronic crime hot spots, includes just 1 % of street segments but is associated with 23 % of crime in the city during the study period. We then employ multinomial regression to identify the specific risk and protective factors that are associated with these crime hot spots. We find that both situational opportunities and social characteristics of places strongly distinguish chronic crime hot spots from areas with little crime. Our findings support recent efforts to decrease crime opportunities at crime hot spots through programs like hot spots policing, but they also suggest that social interventions directed at crime hot spots will be important if we are to do something about crime problems in the long run. We argue in concluding that micro level programs which focus crime prevention efforts on specific street segments have the potential to be less costly and more effective than those targeted at larger areas such as communities or neighborhoods.

  4. Local SIFT analysis for hand vein pattern verification

    Science.gov (United States)

    Wang, Yunxin; Wang, Dayong; Liu, Tiegen; Li, Xiuyan

    2009-11-01

    The newly emerging hand vein recognition technology has attracted remarkable attention for its uniqueness, noninvasion, friendliness and high reliability. It is unavoidable to produce small location deviation of human hand in the practical application; however, the existing recognition methods are sensitive to the hand shift or rotation. The test sample is matched with a series of registered images after affine transformation including the shift or rotation by most of researches, this affine transform method can remedy the location deviation to some extent, but the limited range for hand shift and rotation brings users much inconvenience and the computational cost also increases greatly. Aiming at this issue, a hand vein recognition algorithm based on local SIFT (Scale Invariant Feature Transform) analysis is developed in this contribution, which has practical significance due to its translation and rotation invariance. First, the hand vein image is preprocessed to remove the background and reduce image noises, and then SIFT features are extracted to describe the gradient information of hand vein. Many one-to-more matching pairs are produced by the common matching method of SIFT features, thus the matching rule is improved by appending a constrained condition to ensure the one-to-one matching, which is achieved by selecting feature point with the nearest distance as the optimal match. Finally the match ratio of features between the registered and test images is calculated as the similarity measurement to verify the personal identification. The experiment results show that FRR (False Rejection Rate) is only 0.93% when FAR (False Acceptance Rate) is 0.002%, and EER (Equal Error Rate) is low to 0.12%, which demonstrate the proposed approach is valid and effective for hand vein authentication.

  5. Crime and the Labor Market

    OpenAIRE

    Freeman, Richard B.

    1982-01-01

    Much work on crime has focused on the effect of criminal sanctions on crime, ignoring (except as a control variable) the effect of labor market conditions on crime. This study reviews studies of time series, cross area, and individual evidence pertaining to the effect of unemployment and other labor market variables on crime and compares the "strength" of the labor market-crime and the sanctions-crime relations. It concludes that there is a labor market-crime link but that this link is not we...

  6. Modeling the underlying dynamics of the spread of crime.

    Science.gov (United States)

    McMillon, David; Simon, Carl P; Morenoff, Jeffrey

    2014-01-01

    The spread of crime is a complex, dynamic process that calls for a systems level approach. Here, we build and analyze a series of dynamical systems models of the spread of crime, imprisonment and recidivism, using only abstract transition parameters. To find the general patterns among these parameters--patterns that are independent of the underlying particulars--we compute analytic expressions for the equilibria and for the tipping points between high-crime and low-crime equilibria in these models. We use these expressions to examine, in particular, the effects of longer prison terms and of increased incarceration rates on the prevalence of crime, with a follow-up analysis on the effects of a Three-Strike Policy.

  7. Crime and Partnerships

    DEFF Research Database (Denmark)

    Svarer, Michael

    This paper tests whether being convicted of a crime affects marriage market outcomes. While it is relatively well documented that crime hurts in terms of reduced future income, there has been little systematic analysis on the association between crime and marriage market outcomes. This paper...... exploits a detailed Danish register-based data set to fill this gap in the literature. The main findings are that male convicts do not face lower transition rates into partnerships as such, but they face a lower chance of forming partnerships with females from more well-o¤ families. In addition males who...

  8. The relevance of social media as it applies in South Africa to crime prediction

    CSIR Research Space (South Africa)

    Featherstone, Coral

    2013-05-01

    Full Text Available of estabishing whether it could be useful as a source of information for the prevention of crime. Keywords: Crime prediction, Data mining, Social Networking, Twitter, Social Media 1Introduction Although Crime Stop, a crime reporting call centre, is very... to anyone other than armed response companies, where the information remains local. Social media has shown great promise in disseminating information very rapidly. Newspapers have adopted the platform and even stock brokers have stopped looking...

  9. The Economic Epidemiology of Crime.

    OpenAIRE

    Tomas J. Philipson; Posner, Richard A

    1996-01-01

    Economic analysis of infectious diseases emphasizes the self-correcting character of epidemics, as rising risk of infection causes potential victims to take self-protective measures. We apply the analysis to crime, showing how rational potential victims of crime will take increased self-protective measures in response to rising crime rates, causing those rates to moderate. Victim responses to crime can offset public expenditures on crime control; this implies that there may be a "natural" rat...

  10. fMRI activation patterns in an analytic reasoning task: consistency with EEG source localization

    Science.gov (United States)

    Li, Bian; Vasanta, Kalyana C.; O'Boyle, Michael; Baker, Mary C.; Nutter, Brian; Mitra, Sunanda

    2010-03-01

    Functional magnetic resonance imaging (fMRI) is used to model brain activation patterns associated with various perceptual and cognitive processes as reflected by the hemodynamic (BOLD) response. While many sensory and motor tasks are associated with relatively simple activation patterns in localized regions, higher-order cognitive tasks may produce activity in many different brain areas involving complex neural circuitry. We applied a recently proposed probabilistic independent component analysis technique (PICA) to determine the true dimensionality of the fMRI data and used EEG localization to identify the common activated patterns (mapped as Brodmann areas) associated with a complex cognitive task like analytic reasoning. Our preliminary study suggests that a hybrid GLM/PICA analysis may reveal additional regions of activation (beyond simple GLM) that are consistent with electroencephalography (EEG) source localization patterns.

  11. Fear of Crime Among the Aged

    Science.gov (United States)

    Clemente, Frank; Kleiman, Michael B.

    1976-01-01

    Compares the patterns of fear of crime among the aged and the non-aged. Four key specifying variables were used in the analysis--sex, race, socioeconomic status, and size of community. Findings indicated that elderly respondents who were either female, black, or metropolitan residents possessed extremely high fear rates. (Author)

  12. Localization and Pattern Formation in Quantum Physics. II. Waveletons in Quantum Ensembles

    CERN Document Server

    Fedorova, A N; Fedorova, Antonina N.; Zeitlin, Michael G.

    2005-01-01

    In this second part we present a set of methods, analytical and numerical, which can describe behaviour in (non) equilibrium ensembles, both classical and quantum, especially in the complex systems, where the standard approaches cannot be applied. The key points demonstrating advantages of this approach are: (i) effects of localization of possible quantum states; (ii) effects of non-perturbative multiscales which cannot be calculated by means of perturbation approaches; (iii) effects of formation of complex/collective quantum patterns from localized modes and classification and possible control of the full zoo of quantum states, including (meta) stable localized patterns (waveletons). We demonstrate the appearance of nontrivial localized (meta) stable states/patterns in a number of collective models covered by the (quantum)/(master) hierarchy of Wigner-von Neumann-Moyal-Lindblad equations, which are the result of ``wignerization'' procedure (Weyl-Wigner-Moyal quantization) of classical BBGKY kinetic hierarchy...

  13. Psychopathy, Sociopathy, and Crime.

    Science.gov (United States)

    Lykken, David T.

    1996-01-01

    Discusses psychopathology as portrayed in literature, followed by an examination of some theories of psychopathy and the association of sociopathy and crime. Also discusses using parental licensing as a preventive measure against the development of sociopathology in children. (GR)

  14. Theorising Nigerian Crime Problems

    African Journals Online (AJOL)

    Aigbovo & Eidenoje

    1971-09-08

    Sep 8, 1971 ... single theory or definition can be exhaustive on the issue of crime.4 A major .... Postulations of this theory recommend proper town planning, ...... addition to imprisonment, restitution is also to be made to victims.76 Advance.

  15. Robust method for interest region description based on local intensity binary pattern

    Science.gov (United States)

    Yang, Yi; Duan, Fajie; Jiang, Jiajia; Ma, Ling; Zheng, Hao

    2017-07-01

    This paper proposes a robust method based on a local intensity binary pattern for interest feature description. To avoid estimating reference orientation, local features were calculated on a rotation invariant system. Different from the local binary patterns (LBP) and center-symmetric-LBP operator, our proposed local circular contrast pattern (LCCP) operator calculates a local binary feature by comparing the relative intensity order information of each two adjacent elements in the sequence consisting of the sampling point and its neighboring points. To evaluate the performance of our proposed descriptor LCCP and other existing descriptors (e.g., scale-invariant feature transform, DAISY, HRI-CSLTP, multisupport region order-based gradient histogram-single, local intensity order pattern), image matching experiments were first conducted on the Oxford dataset, additional image pairs with complex light changes, image sequences with different noise, and three-dimensional objects dataset. To further evaluate the discriminative ability of local descriptors, a simple object recognition experiment was carried out on three public datasets. The experimental results show that our descriptor LCCP exhibits a better performance and robustness than other evaluated descriptors.

  16. Local direct and indirect reduction of electrografted aryldiazonium/gold surfaces for polymer brushes patterning

    Energy Technology Data Exchange (ETDEWEB)

    Hauquier, Fanny; Matrab, Tarik; Kanoufi, Frederic [Laboratoire Environnement et Chimie Analytique, CNRS UMR7121, ESPCI, 10 rue Vauquelin, 75231 Paris Cedex 05 (France); Combellas, Catherine [Laboratoire Environnement et Chimie Analytique, CNRS UMR7121, ESPCI, 10 rue Vauquelin, 75231 Paris Cedex 05 (France)], E-mail: Catherine.Combellas@espci.fr

    2009-09-01

    The patterning of conductive substrates by polymer brushes may be achieved by using successively scanning electrochemical microscopy (SECM) and atom transfer radical polymerization (ATRP). After the surface functionalization by a brominated aryldiazonium initiator, SECM allows the local reduction at the micrometer scale of the initiator grafted layer. Different channels sizes involved in charge transport within the initiator layers are evidenced by combining SECM, CV and observation of the aryl-grafted layer transformation. ATRP is performed on the SECM patterned substrate. Inside the pattern, the lower density of initiator decreases the polymer thickness. The pattern resolution is enhanced when the direct mode of the SECM is used instead of the mediated indirect mode.

  17. Phylogenetic origins of local-scale diversity patterns and the causes of Amazonian megadiversity.

    Science.gov (United States)

    Wiens, John J; Pyron, R Alexander; Moen, Daniel S

    2011-07-01

    What explains the striking variation in local species richness across the globe and the remarkable diversity of rainforest sites in Amazonia? Here, we apply a novel phylogenetic approach to these questions, using treefrogs (Hylidae) as a model system. Hylids show dramatic variation in local richness globally and incredible local diversity in Amazonia. We find that variation in local richness is not explained primarily by climatic factors, rates of diversification (speciation and extinction) nor morphological variation. Instead, local richness patterns are explained predominantly by the timing of colonization of each region, and Amazonian megadiversity is linked to the long-term sympatry of multiple clades in that region. Our results also suggest intriguing interactions between clade diversification, trait evolution and the accumulation of local richness. Specifically, sympatry between clades seems to slow diversification and trait evolution, but prevents neither the accumulation of local richness over time nor the co-occurrence of similar species.

  18. Nonstationary patterns of isolation-by-distance: inferring measures of local genetic differentiation with Bayesian kriging.

    Science.gov (United States)

    Duforet-Frebourg, Nicolas; Blum, Michael G B

    2014-04-01

    Patterns of isolation-by-distance (IBD) arise when population differentiation increases with increasing geographic distances. Patterns of IBD are usually caused by local spatial dispersal, which explains why differences of allele frequencies between populations accumulate with distance. However, spatial variations of demographic parameters such as migration rate or population density can generate nonstationary patterns of IBD where the rate at which genetic differentiation accumulates varies across space. To characterize nonstationary patterns of IBD, we infer local genetic differentiation based on Bayesian kriging. Local genetic differentiation for a sampled population is defined as the average genetic differentiation between the sampled population and fictive neighboring populations. To avoid defining populations in advance, the method can also be applied at the scale of individuals making it relevant for landscape genetics. Inference of local genetic differentiation relies on a matrix of pairwise similarity or dissimilarity between populations or individuals such as matrices of FST between pairs of populations. Simulation studies show that maps of local genetic differentiation can reveal barriers to gene flow but also other patterns such as continuous variations of gene flow across habitat. The potential of the method is illustrated with two datasets: single nucleotide polymorphisms from human Swedish populations and dominant markers for alpine plant species.

  19. Adaptive intesration of local resion information to detect fine-scale brain activity patterns

    Institute of Scientific and Technical Information of China (English)

    ZHEN ZongLei; TIAN Jie; ZHANG Hui

    2008-01-01

    With the rapid development of functional magnetic resonance imaging (fMRI) technology, the spatial resolution of fMRI data is continuously growing. This pro-vides us the possibility to detect the fine-scale patterns of brain activities. The es-tablished univariate and multivariate methods to analyze fMRI data mostly focus on detecting the activation blobs without considering the distributed fine-scale pat-terns within the blobs. To improve the sensitivity of the activation detection, in this paper, multivariate statistical method and univariate statistical method are com-bined to discover the fine-grained activity patterns. For one voxel in the brain, a local homogenous region is constructed. Then, time courses from the local ho-mogenous region are integrated with multivariate statistical method. Univariate statistical method is finally used to construct the interests of statistic for that voxel. The approach has explicitly taken into account the structures of both activity pat-terns and existing noise of local brain regions. Therefore, it could highlight the fine-scale activity patterns of the local regions. Experiments with simulated and real fMRI data demonstrate that the proposed method dramatically increases the sensitivity of detection of fine-scale brain activity patterns which contain the subtle information about experimental conditions.

  20. Approaches to Scandinavian Crime Fiction

    DEFF Research Database (Denmark)

    Agger, Gunhild

    2010-01-01

    The working paper discusses some of the major approaches to Scandinavian crime fiction in the light of the dominant features of crime culture, e.g. the broad exposure of crime fiction via different platforms and media. In this connection, the concept of mediatization is considered as well...... as the approach of genre typology and the concept of evil – seemingly disparate concepts and approaches, but all related to the complex processes in the borderlands between crime fiction and society. Using examples from Scandinavian crime fiction, I discuss whether the growing proximity to international genres......, ways of production and standards increasingly removes Scandinavian crime fiction from its original attractions or not....

  1. Approaches to Scandinavian Crime Fiction

    DEFF Research Database (Denmark)

    Agger, Gunhild

    2010-01-01

    as the approach of genre typology and the concept of evil – seemingly disparate concepts and approaches, but all related to the complex processes in the borderlands between crime fiction and society. Using examples from Scandinavian crime fiction, I discuss whether the growing proximity to international genres......The working paper discusses some of the major approaches to Scandinavian crime fiction in the light of the dominant features of crime culture, e.g. the broad exposure of crime fiction via different platforms and media. In this connection, the concept of mediatization is considered as well......, ways of production and standards increasingly removes Scandinavian crime fiction from its original attractions or not....

  2. Wolbachia Has Two Different Localization Patterns in Whitefly Bemisia tabaci AsiaII7 Species.

    Science.gov (United States)

    Shi, Peiqiong; He, Zhan; Li, Shaojian; An, Xuan; Lv, Ning; Ghanim, Murad; Cuthbertson, Andrew G S; Ren, Shun-Xiang; Qiu, Bao-Li

    2016-01-01

    The whitefly Bemisia tabaci is a cosmopolitan insect species complex that harbors the obligate primary symbiont Portiera aleyrodidarum and several facultative secondary symbionts including Wolbachia, which have diverse influences on the host biology. Here, for the first time, we revealed two different localization patterns of Wolbachia present in the immature and adult stages of B. tabaci AsiaII7 cryptic species. In the confined pattern, Wolbachia was restricted to the bacteriocytes, while in the scattered pattern Wolbachia localized in the bacteriocytes, haemolymph and other organs simultaneously. Our results further indicated that, the proportion of B. tabaci AsiaII7 individuals with scattered Wolbachia were significantly lower than that of confined Wolbachia, and the distribution patterns of Wolbachia were not associated with the developmental stage or sex of whitefly host. This study will provide a new insight into the various transmission routes of Wolbachia in different whitefly species.

  3. Local Circulation Maintains the Coexistence of Lake-dune Pattern in the Badain Jaran Desert

    Science.gov (United States)

    Zhang, Kecun; Cai, Diwen; Ao, Yinhuan; An, Zhishan; Guo, Zichen

    2017-01-01

    Previous studies proposed various hypotheses to the formation of the mega-dunes and water recharge of the lakes in the Badain Jaran Desert but left the coexistence of lake-dune pattern unsolved. This research found that the local circulation, generated from the differences of thermodynamic properties and the unique landscape settings between lakes and mega-dunes, can be applied to interpret the pattern.

  4. The fear of crime and area differences in health.

    Science.gov (United States)

    Chandola, T

    2001-06-01

    A number of studies have shown that major health inequalities exist between different areas within the UK. However, there has been some debate about the mechanisms underlying area differences in health. One of the mechanisms which could explain area differences in health is the fear of crime in the local area or neighbourhood. This study examines data from the 1996 British Crime Survey (N=16,090). The fear of crime was found to be associated with self-rated health even after adjusting for health behaviours and a number of individual and household level socio-economic factors. Area differences in self-rated health were reduced to non-significance after health behaviours, socio-economic factors and the fear of crime were adjusted for in the regression model. There is some evidence that fear of crime is associated with health and it may have an important role in explaining area differences in health.

  5. Youht Crime and Its Relations With Schools

    OpenAIRE

    IŞIK, Halil

    2006-01-01

    The purpose of this study is to make a conceptual analysis relation with youth crime, crime - school relations. Under this general purpose, following topics will be presented; (a) theories about youth crime, (b) risk factors for youth crime, school crime relations, and (d) solutions for youth crime. To analyze the issue of youth crime, there are two basic theories. These theories are general strain theory and escape theory. Possible risk factorsmotivating youth crime are related to peer group...

  6. Cyber-crime Science = Crime Science + Information Security

    NARCIS (Netherlands)

    Hartel, Pieter; Junger, Marianne; Wieringa, Roel

    2010-01-01

    Cyber-crime Science is an emerging area of study aiming to prevent cyber-crime by combining security protection techniques from Information Security with empirical research methods used in Crime Science. Information security research has developed techniques for protecting the confidentiality, integ

  7. Planning against crime: preventing crime with people not barriers

    CSIR Research Space (South Africa)

    Landman, K

    2005-03-01

    Full Text Available In SA Crime Quarterly No 8 2004, the argument was made for better use of bylaws by city governments in an effort to prevent crime. Another equally effective tool available to municipalities lies in the area of urban planning. Crime is closely tied...

  8. Cyber-crime Science = Crime Science + Information Security

    NARCIS (Netherlands)

    Hartel, Pieter H.; Junger, Marianne; Wieringa, Roelf J.

    2010-01-01

    Cyber-crime Science is an emerging area of study aiming to prevent cyber-crime by combining security protection techniques from Information Security with empirical research methods used in Crime Science. Information security research has developed techniques for protecting the confidentiality,

  9. South African Crime Quarterly 56

    African Journals Online (AJOL)

    Edited by Chandré Gould and Andrew Faull

    promote evidence-based crime and violence reduction policies and strategies. ... South Africa's high violent crime rates are ... economic deprivation are strongly associated.9 .... To estimate the relative poverty of a precinct compared.

  10. Adaptive integration of local region information to detect fine-scale brain activity patterns

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    With the rapid development of functional magnetic resonance imaging (fMRI) technology, the spatial resolution of fMRI data is continuously growing. This pro- vides us the possibility to detect the fine-scale patterns of brain activities. The es- tablished univariate and multivariate methods to analyze fMRI data mostly focus on detecting the activation blobs without considering the distributed fine-scale pat- terns within the blobs. To improve the sensitivity of the activation detection, in this paper, multivariate statistical method and univariate statistical method are com- bined to discover the fine-grained activity patterns. For one voxel in the brain, a local homogenous region is constructed. Then, time courses from the local ho- mogenous region are integrated with multivariate statistical method. Univariate statistical method is finally used to construct the interests of statistic for that voxel. The approach has explicitly taken into account the structures of both activity pat- terns and existing noise of local brain regions. Therefore, it could highlight the fine-scale activity patterns of the local regions. Experiments with simulated and real fMRI data demonstrate that the proposed method dramatically increases the sensitivity of detection of fine-scale brain activity patterns which contain the subtle information about experimental conditions.

  11. Patterns of strain localization in heterogeneous, polycrystalline rocks - a numerical perspective

    Science.gov (United States)

    Gardner, Robyn; Piazolo, Sandra; Evans, Lynn; Daczko, Nathan

    2017-04-01

    The spatial and temporal patterns of strain localization in materials with pre-existing heterogeneities are investigated via a series of two-dimensional numerical models. Models include (i) a dynamic feedback process, to simulate rheological weakening in response to the transition from non-linear flow (dislocation creep) to linear flow (diffusion creep/grain boundary sliding), and (ii) a time dependent strengthening process, counteracting the weakening process. Different load bearing framework geometries with 20% weak component are used to evaluate the impact of geometry on the strength of the material and its ability to localize strain into an interconnected weak layer (IWL). Our results highlight that during simple shear, if dynamic weakening with or without strengthening feedbacks is present, strain is quickly localized into an IWL, where an increasing proportion of weak material increases the interconnections between the IWLs, thereby increasing the anastomosing character of the shear zones. We establish that not only bulk strain localization patterns but also their temporal patterns are sensitive to the dominance of the weakening or strengthening process. Consequently, shear zones are dynamic in time and space within a single deformation event. Hence, the pattern of finite strain can be an incomplete representation of the evolution of a shear zone network.

  12. Substrates with patterned extracellular matrix and subcellular stiffness gradients reveal local biomechanical responses.

    Science.gov (United States)

    Tseng, Peter; Di Carlo, Dino

    2014-02-26

    A substrate fabrication process is developed to pattern both the extracellular matrix (ECM) and rigidity at sub-cellular spatial resolution. When growing cells on these substrates, it is found that cells respond locally in their cytoskeleton assembly. The presented method allows unique insight into the biological interpretation of mechanical signals, whereas photolithography-based fabrication is amenable to integration with complex microfabricated substructures.

  13. Genetic Algorithm-Based Relevance Feedback for Image Retrieval Using Local Similarity Patterns.

    Science.gov (United States)

    Stejic, Zoran; Takama, Yasufumi; Hirota, Kaoru

    2003-01-01

    Proposes local similarity pattern (LSP) as a new method for computing digital image similarity. Topics include optimizing similarity computation based on genetic algorithm; relevance feedback; and an evaluation of LSP on five databases that showed an increase in retrieval precision over other methods for computing image similarity. (Author/LRW)

  14. Sustainable consumption and production patterns: solid waste and governance challenge from local to global

    OpenAIRE

    Thais Maria Machado Lemos Ribeiro; Cristina Y A Inoue

    2016-01-01

    Solid waste has been growing at an exponential rate because of unsustainable production and consumption patterns. For that reason, it is considered a global issue both in the international political economy perspective and in local and global governance, with multiple actors and levels of analysis, highlighting waste pickers as relevant actors.

  15. Extended local binary pattern features for improving settlement type classification of quickbird images

    CSIR Research Space (South Africa)

    Mdakane, L

    2012-11-01

    Full Text Available resolution imagery over urban areas. That is, we combined the LBP method based on recognising certain patterns, termed “uniform patterns” with the rotational invariant variance measure that characterises the contrast of the local image texture, then combined...

  16. Strain localization band width evolution by electronic speckle pattern interferometry strain rate measurement

    Energy Technology Data Exchange (ETDEWEB)

    Guelorget, Bruno [Institut Charles Delaunay-LASMIS, Universite de technologie de Troyes, FRE CNRS 2848, 12 rue Marie Curie, B.P. 2060, 10010 Troyes Cedex (France)], E-mail: bruno.guelorget@utt.fr; Francois, Manuel; Montay, Guillaume [Institut Charles Delaunay-LASMIS, Universite de technologie de Troyes, FRE CNRS 2848, 12 rue Marie Curie, B.P. 2060, 10010 Troyes Cedex (France)

    2009-04-15

    In this paper, electronic speckle pattern interferometry strain rate measurements are used to quantify the width of the strain localization band, which occurs when a sheet specimen is submitted to tension. It is shown that the width of this band decreases with increasing strain. Just before fracture, this measured width is about five times wider than the shear band and the initial sheet thickness.

  17. Are adaptation costs necessary to build up a local adaptation pattern?

    NARCIS (Netherlands)

    Magalhães, S.; Blanchet, E.; Egas, M.; Olivieri, I.

    2009-01-01

    Background: Ecological specialization is pervasive in phytophagous arthropods. In such specialization mode, limits to host range are imposed by trade-offs preventing adaptation to several hosts. The occurrence of such trade-offs is inferred by a pattern of local adaptation, i.e., a negative

  18. Fusing local patterns of Gabor magnitude and phase for face recognition.

    Science.gov (United States)

    Xie, Shufu; Shan, Shiguang; Chen, Xilin; Chen, Jie

    2010-05-01

    Gabor features have been known to be effective for face recognition. However, only a few approaches utilize phase feature and they usually perform worse than those using magnitude feature. To investigate the potential of Gabor phase and its fusion with magnitude for face recognition, in this paper, we first propose local Gabor XOR patterns (LGXP), which encodes the Gabor phase by using the local XOR pattern (LXP) operator. Then, we introduce block-based Fisher's linear discriminant (BFLD) to reduce the dimensionality of the proposed descriptor and at the same time enhance its discriminative power. Finally, by using BFLD, we fuse local patterns of Gabor magnitude and phase for face recognition. We evaluate our approach on FERET and FRGC 2.0 databases. In particular, we perform comparative experimental studies of different local Gabor patterns. We also make a detailed comparison of their combinations with BFLD, as well as the fusion of different descriptors by using BFLD. Extensive experimental results verify the effectiveness of our LGXP descriptor and also show that our fusion approach outperforms most of the state-of-the-art approaches.

  19. Local tetra patterns: a new feature descriptor for content-based image retrieval.

    Science.gov (United States)

    Murala, Subrahmanyam; Maheshwari, R P; Balasubramanian, R

    2012-05-01

    In this paper, we propose a novel image indexing and retrieval algorithm using local tetra patterns (LTrPs) for content-based image retrieval (CBIR). The standard local binary pattern (LBP) and local ternary pattern (LTP) encode the relationship between the referenced pixel and its surrounding neighbors by computing gray-level difference. The proposed method encodes the relationship between the referenced pixel and its neighbors, based on the directions that are calculated using the first-order derivatives in vertical and horizontal directions. In addition, we propose a generic strategy to compute nth-order LTrP using (n - 1)th-order horizontal and vertical derivatives for efficient CBIR and analyze the effectiveness of our proposed algorithm by combining it with the Gabor transform. The performance of the proposed method is compared with the LBP, the local derivative patterns, and the LTP based on the results obtained using benchmark image databases viz., Corel 1000 database (DB1), Brodatz texture database (DB2), and MIT VisTex database (DB3). Performance analysis shows that the proposed method improves the retrieval result from 70.34%/44.9% to 75.9%/48.7% in terms of average precision/average recall on database DB1, and from 79.97% to 85.30% and 82.23% to 90.02% in terms of average retrieval rate on databases DB2 and DB3, respectively, as compared with the standard LBP.

  20. Adapting to Hard Times: Family Participation Patterns in Local Thrift Economies

    Science.gov (United States)

    James, Spencer; Brown, Ralph B.; Goodsell, Todd L.; Stovall, Josh; Flaherty, Jeremy

    2010-01-01

    Using survey data from a western U.S. county (N = 595), we examined how lower, middle, and higher income families negotiate a period of economic stress--the closing of a major employer in the community--through their shopping patterns. Specifically, we examined their participation in local thrift economies such as yard sales and secondhand stores.…

  1. Face Recognition Based on Local Binary Pattern and Local Phase Quantization%融合LBP和LPQ的人脸识别

    Institute of Scientific and Technical Information of China (English)

    朱长水; 丁勇; 袁宝华; 曹红根

    2015-01-01

    Spatial and frequency domain analysis is an important method of image analysis. This paper presents a method of face recognition based on local binary pattern and local phase quantization. First,LBP operator is used to extract LBP feature in the spatial domain and LPQ operator is used to extract LPQ feature in the frequency domain from block grey-level face images. Then fused into LBP/LPQ histograms and evaluated the goodness between tow LBP/LPQ histograms. Finally,Face recognition based on the nearest neighbor principle. The simulation experiments illustrate that this method has better recognition rate and more robust than single method on the YALE and AR face database.%空域和频域分析是图像分析的重要方法,提出一种融合空域的局部二值模式(local binary pattern,LBP)和频域的局部相位量化(local phase quantization,LPQ)进行人脸识别的方法。该方法首先对人脸图像分别在空域提取LBP特征和频域提取LPQ特征,然后融合成LBP/LPQ直方图,进行直方图相似性比较,最后根据最近邻原则进行识别。在YALE和AR标准人脸数据库上的实验表明,该方法得到的结果比单个方法效果更好,鲁棒性更高。

  2. Preventing Financial Crime

    DEFF Research Database (Denmark)

    Boll, Karen

    This paper investigates the Swedish tax authority’s (Skatteverkets) compliance initiative called Preventing Financial Crime. In Sweden tax evasion related to organised moon-lighting is defined as a major risk to the revenue collection and to the legitimacy of Skatteverket. The traditional approach...... to abating such tax evasion has been reformed and a new mix-method approach adopted. This approach combines a proactive strategy—Preventing Financial Crime—with a reactive inspection strategy. During one a month of intensive fieldwork in Sweden, I studied the daily work in Preventing Financial Crime. Based...

  3. [Crime and psychopathology].

    Science.gov (United States)

    Daligand, Liliane; Gonin, Daniel

    2002-04-01

    Crime does not necessarily involve the existence of a psychopathologic disorder. However, some psychiatric disorders as, for example, delirious psychosis, paranoia, melancholy or obsessional neurosis, might predispose to crime. Violence can lead the victim, by the way of stress or trauma, to develop some psychic trouble as neurosis or traumatic psychosis. Children in particular, while constructing, are very vulnerable victims, especially when their aggressor is also a member of their family. Therapy for the aggressors, as well as for the victims, is based on the assertion that both the aggressors and the victims are subject to law.

  4. Less crime, more punishment.

    Science.gov (United States)

    Cooney, Mark; Burt, Callie Harbin

    2008-09-01

    Recasting Durkheim's "community of saints" thesis, the authors argue that the severity of punishment is predicted in part by the prevalence of the deviant behavior of which the deviant stands accused. Although there is some curvilinearity at low levels of prevalence, the relationship is generally negative. Thus, all else equal, where a particular crime is frequent, any punishment applied to it is likely to be mild; conversely, where a crime is infrequent, its punishment ought to be severe. Using hierarchical regression models, the authors support this hypothesis with 1988 homicide conviction and imprisonment decisions in 32 U.S. counties.

  5. Convolution Comparison Pattern: An Efficient Local Image Descriptor for Fingerprint Liveness Detection.

    Directory of Open Access Journals (Sweden)

    Carsten Gottschlich

    Full Text Available We present a new type of local image descriptor which yields binary patterns from small image patches. For the application to fingerprint liveness detection, we achieve rotation invariant image patches by taking the fingerprint segmentation and orientation field into account. We compute the discrete cosine transform (DCT for these rotation invariant patches and attain binary patterns by comparing pairs of two DCT coefficients. These patterns are summarized into one or more histograms per image. Each histogram comprises the relative frequencies of pattern occurrences. Multiple histograms are concatenated and the resulting feature vector is used for image classification. We name this novel type of descriptor convolution comparison pattern (CCP. Experimental results show the usefulness of the proposed CCP descriptor for fingerprint liveness detection. CCP outperforms other local image descriptors such as LBP, LPQ and WLD on the LivDet 2013 benchmark. The CCP descriptor is a general type of local image descriptor which we expect to prove useful in areas beyond fingerprint liveness detection such as biological and medical image processing, texture recognition, face recognition and iris recognition, liveness detection for face and iris images, and machine vision for surface inspection and material classification.

  6. Is Crime News Coverage Excessive?

    Science.gov (United States)

    Graber, Doris A.

    1979-01-01

    Reports on the frequency and manner in which various crime and noncrime news topics were presented in selected newspapers and television newscasts in 1976. Examines news flow data to determine whether news output was inflexible, and whether crime news coverage distorted the amount of real-life crime. (PD)

  7. CRIME MAPS AND COMPUTER TECNOLOGY

    Directory of Open Access Journals (Sweden)

    Erdal KARAKAŞ

    2004-04-01

    Full Text Available Crime maps show crime density values and locations where crime have accured. For this reason it had been easy to examine the spatial distribution of crime locations with crime maps. There for crime maps have long been part of the process to crime analysis. In this study, the crime of home burglary was mapped with respect to general areal distribution by GIS (Geographic Information System in the city of Elazig The distribution of the crime was handled considering the parameters such as month, day and hour, and related to the land use. As a result, it was determined that there were differences in the distribution and concentration in the crime of theft with respect to the land use inside the city. The methods and findings in this study will provide rapid and accurate analyses for such kinds of studies. In addition, Interrelating the type of the crime with the regions or areas will contribute to preventing crime, and security in urban areas.

  8. Localized conductive patterning via focused electron beam reduction of graphene oxide

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Songkil; Henry, Mathias [George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States); Kulkarni, Dhaval D.; Zackowski, Paul; Jang, Seung Soon; Tsukruk, Vladimir V. [School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States); Fedorov, Andrei G., E-mail: agf@gatech.edu [George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States); Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States)

    2015-03-30

    We report on a method for “direct-write” conductive patterning via reduction of graphene oxide (GO) sheets using focused electron beam induced deposition (FEBID) of carbon. FEBID treatment of the intrinsically dielectric graphene oxide between two metal terminals opens up the conduction channel, thus enabling a unique capability for nanoscale conductive domain patterning in GO. An increase in FEBID electron dose results in a significant increase of the domain electrical conductivity with improving linearity of drain-source current vs. voltage dependence, indicative of a change of graphene oxide electronic properties from insulating to semiconducting. Density functional theory calculations suggest a possible mechanism underlying this experimentally observed phenomenon, as localized reduction of graphene oxide layers via interactions with highly reactive intermediates of electron-beam-assisted dissociation of surface-adsorbed hydrocarbon molecules. These findings establish an unusual route for using FEBID as nanoscale lithography and patterning technique for engineering carbon-based nanomaterials and devices with locally tailored electronic properties.

  9. Study on local Gabor binary patterns for face representation and recognition

    Science.gov (United States)

    Ge, Wei; Han, Chunling; Quan, Wei

    2015-12-01

    More recently, Local Binary Patterns(LBP) has received much attention in face representation and recognition. The original LBP operator could describe the spatial structure information, which are the variety edge or variety angle features of local facial images essentially, they are important factors of classify different faces. But the scale and orientation of the edge features include more detail information which could be used to classify different persons efficiently, while original LBP operator could not to extract the information. In this paper, based on the introduction of original LBP-based facial representation and recognition, the histogram sequences of local Gabor binary patterns are used to representation facial image. Principal Component Analysis (PCA) method is used to classification the histogram sequences, which have been converted to vectors. Recognition experimental results show that the method we used in this paper increases nearly 6% than the classification performance of original LBP operator.

  10. Hotspot detection using image pattern recognition based on higher-order local auto-correlation

    Science.gov (United States)

    Maeda, Shimon; Matsunawa, Tetsuaki; Ogawa, Ryuji; Ichikawa, Hirotaka; Takahata, Kazuhiro; Miyairi, Masahiro; Kotani, Toshiya; Nojima, Shigeki; Tanaka, Satoshi; Nakagawa, Kei; Saito, Tamaki; Mimotogi, Shoji; Inoue, Soichi; Nosato, Hirokazu; Sakanashi, Hidenori; Kobayashi, Takumi; Murakawa, Masahiro; Higuchi, Tetsuya; Takahashi, Eiichi; Otsu, Nobuyuki

    2011-04-01

    Below 40nm design node, systematic variation due to lithography must be taken into consideration during the early stage of design. So far, litho-aware design using lithography simulation models has been widely applied to assure that designs are printed on silicon without any error. However, the lithography simulation approach is very time consuming, and under time-to-market pressure, repetitive redesign by this approach may result in the missing of the market window. This paper proposes a fast hotspot detection support method by flexible and intelligent vision system image pattern recognition based on Higher-Order Local Autocorrelation. Our method learns the geometrical properties of the given design data without any defects as normal patterns, and automatically detects the design patterns with hotspots from the test data as abnormal patterns. The Higher-Order Local Autocorrelation method can extract features from the graphic image of design pattern, and computational cost of the extraction is constant regardless of the number of design pattern polygons. This approach can reduce turnaround time (TAT) dramatically only on 1CPU, compared with the conventional simulation-based approach, and by distributed processing, this has proven to deliver linear scalability with each additional CPU.

  11. International Crimes and Transitional Justice: where does organised crime fit?

    Directory of Open Access Journals (Sweden)

    Parmentier Stephan

    2010-03-01

    Full Text Available The last twenty years, since the fall of the Berlin wall in 1989, more than 120 violent conflicts waged across the globe and hundreds of thousands of people killed, disappeared, handicapped or left in distress.Violent conflicts involve frequent human rights violations as well as many crimes. These kinds of crimes are usually very serious and tend to involve many victims, and have attracted attention from a variety of disciplines, including social and political scientists and (criminal lawyers. Therefore, the author argues that criminology as an academic discipline has until recently hardly been interested in studying international crimes.In order to understand this, the author is firstly interested in sketching the background of the concept of international crimes and comparing it with the notion of political crimes and also with that of serious human rights violations. Secondly, international crimes will be situated in their political context of transitional justice and its links with organized crime will be explored.

  12. The contemporary foreclosure crisis and US crime rates.

    Science.gov (United States)

    Arnio, Ashley N; Baumer, Eric P; Wolff, Kevin T

    2012-11-01

    Foreclosure rates in America reached unprecedented levels during the last half of the 2000s, and many observers have speculated that elevated crime rates were one of the probable negative collateral consequences of this trend. We examine this issue with a comprehensive county-level analysis of the role of foreclosure in shaping contemporary crime patterns, highlighting the possibility of theoretically informed non-linear and conditional relationships. Multivariate regression models that account for the well-documented spatial autocorrelation of crime rates and the possible endogeneity of foreclosure reveal a positive association between rates of foreclosure and property crime that accelerates significantly once foreclosure rates attain historically high levels. Multiplicative models indicate that this pattern holds for burglary across diverse county conditions, but the observed non-linear effect of foreclosure on robbery rates is limited primarily to areas that also exhibit relatively high levels of resource deprivation and limited new housing construction.

  13. Cities, Crowding and Crime

    Science.gov (United States)

    Trotter, Robert J.

    1974-01-01

    This article considers the effects of human crowding in light of recent tests and observations. Factors such as sex, age, culture, socio-economic standing, frustration, and interpersonal physical distance are examined. Results indicate that crowding contributes to social problems and crime. (TK)

  14. On the Crime Object

    Science.gov (United States)

    Akutaev, Rasul M.; Magomedov, Guseyn B.

    2016-01-01

    The relevance of the research of this problem is caused by the theoretical and practical needs of a specific concept of the crime object as one of the corpus delicti signs essentially the determining and defining its object and objective side, thereby--the nature of socially dangerous act. Besides, being a facultative sign of corpus delicti, the…

  15. Crime and Punishment

    NARCIS (Netherlands)

    Dostoevsky, Fyodor

    2005-01-01

    Crime and Punishment is the story of a brutal double murder and its aftermath. Raskolnikov, a poor student, kills a pawnbroker and her sister, and then has to face up to the moral consequences of his actions. The novel is compelling and rewarding, full of meaning and symbolism, and raises profound

  16. Social Disadvantage and Crime

    Science.gov (United States)

    Wikström, Per-Olof H.; Treiber, Kyle

    2016-01-01

    In this article, we analyze the relationship between social disadvantage and crime, starting from the paradox that most persistent offenders come from disadvantaged backgrounds, but most people from disadvantaged backgrounds do not become persistent offenders. We argue that despite the fact that social disadvantage has been a key criminological topic for some time, the mechanisms which link it to offending remain poorly specified. Drawing on situational action theory, we suggest social disadvantage is linked to crime because more people from disadvantaged versus affluent backgrounds develop a high crime propensity and are exposed to criminogenic contexts, and the reason for this is that processes of social and self-selection place the former more frequently in (developmental and action) contexts conducive to the development and expression of high crime propensities. This article will explore this hypothesis through a series of analyses using data from the Peterborough Adolescent and Young Adult Development Study (PADS+), a longitudinal study which uses a range of data collection methods to study the interaction between personal characteristics and social environments. It pays particular attention to the macro-to-micro processes behind the intersection of people with certain characteristics and environments with certain features – i.e., their exposure – which leads to their interaction. PMID:27524829

  17. The Crime Lab Project.

    Science.gov (United States)

    Hein, Annamae J.

    2003-01-01

    Describes the Crime Lab Project, which takes an economical, hands-on, interdisciplinary approach to studying the career of forensics in the middle or high school classroom. Includes step-by-step student requirements for the investigative procedure, a sample evidence request form, and an assessment rubric. (KHR)

  18. Crime, Race, and Values.

    Science.gov (United States)

    Wilson, James Q.

    1992-01-01

    Fear can produce behavior that is indistinguishable from racism. The best way to reduce real or imagined racism is to reduce the African-American crime rate to equal that of whites. This will require an enormous commitment to the problems of the innercity. (SLD)

  19. Crime and Punishment

    NARCIS (Netherlands)

    Dostoevsky, Fyodor

    2005-01-01

    Crime and Punishment is the story of a brutal double murder and its aftermath. Raskolnikov, a poor student, kills a pawnbroker and her sister, and then has to face up to the moral consequences of his actions. The novel is compelling and rewarding, full of meaning and symbolism, and raises profound q

  20. Corporate Crime and Restitution.

    Science.gov (United States)

    Abel, Charles F.

    1985-01-01

    Articulates need, nature, and form of a restitutionary approach to corporate crime. Considers small, in-prison production-oriented programs; residential in-community programs, and nonresidential in-community programs for individual offenders; also considers lump sum and continuous payments for corporations to make restitution. (NRB)

  1. Crime Location Choice

    NARCIS (Netherlands)

    Bernasco, Wim; Ruiter, Stijn

    2014-01-01

    Most behavior of interest to social scientists is choice behavior: actions people commit while they could also have done something else. In geographical and environmental criminology, a new framework has emerged for analyzing individual crime location choice. It is based on the principle of random u

  2. Fear of Crime Among Military Personnel in Different Residential Settings.

    Science.gov (United States)

    1986-01-01

    satisfaction of Accession For the requirements for the degree of I S R DTTC TAB Unanmounced 5 MASTER OF SCIENCE Justification By in Distribution/ Availability...your local police are doing a(n) job ?" 51 4.11 Reporting Crime to Police in Response to: "If you were the victim of any crime would you report it to...the fact that incivility in a neighborhood affects fear levels more than actual crime statistics. There is still some discussion as to whether there is

  3. Emergence of localized patterns in globally coupled networks of relaxation oscillators with heterogeneous connectivity

    Science.gov (United States)

    Leiser, Randolph J.; Rotstein, Horacio G.

    2017-08-01

    Oscillations in far-from-equilibrium systems (e.g., chemical, biochemical, biological) are generated by the nonlinear interplay of positive and negative feedback effects operating at different time scales. Relaxation oscillations emerge when the time scales between the activators and the inhibitors are well separated. In addition to the large-amplitude oscillations (LAOs) or relaxation type, these systems exhibit small-amplitude oscillations (SAOs) as well as abrupt transitions between them (canard phenomenon). Localized cluster patterns in networks of relaxation oscillators consist of one cluster oscillating in the LAO regime or exhibiting mixed-mode oscillations (LAOs interspersed with SAOs), while the other oscillates in the SAO regime. Because the individual oscillators are monostable, localized patterns are a network phenomenon that involves the interplay of the connectivity and the intrinsic dynamic properties of the individual nodes. Motivated by experimental and theoretical results on the Belousov-Zhabotinsky reaction, we investigate the mechanisms underlying the generation of localized patterns in globally coupled networks of piecewise-linear relaxation oscillators where the global feedback term affects the rate of change of the activator (fast variable) and depends on the weighted sum of the inhibitor (slow variable) at any given time. We also investigate whether these patterns are affected by the presence of a diffusive type of coupling whose synchronizing effects compete with the symmetry-breaking global feedback effects.

  4. Tracking pedestrians using local spatio-temporal motion patterns in extremely crowded scenes.

    Science.gov (United States)

    Kratz, Louis; Nishino, Ko

    2012-05-01

    Tracking pedestrians is a vital component of many computer vision applications, including surveillance, scene understanding, and behavior analysis. Videos of crowded scenes present significant challenges to tracking due to the large number of pedestrians and the frequent partial occlusions that they produce. The movement of each pedestrian, however, contributes to the overall crowd motion (i.e., the collective motions of the scene's constituents over the entire video) that exhibits an underlying spatially and temporally varying structured pattern. In this paper, we present a novel Bayesian framework for tracking pedestrians in videos of crowded scenes using a space-time model of the crowd motion. We represent the crowd motion with a collection of hidden Markov models trained on local spatio-temporal motion patterns, i.e., the motion patterns exhibited by pedestrians as they move through local space-time regions of the video. Using this unique representation, we predict the next local spatio-temporal motion pattern a tracked pedestrian will exhibit based on the observed frames of the video. We then use this prediction as a prior for tracking the movement of an individual in videos of extremely crowded scenes. We show that our approach of leveraging the crowd motion enables tracking in videos of complex scenes that present unique difficulty to other approaches.

  5. Localization of Motor Neurons and Central Pattern Generators for Motor Patterns Underlying Feeding Behavior in Drosophila Larvae.

    Directory of Open Access Journals (Sweden)

    Sebastian Hückesfeld

    Full Text Available Motor systems can be functionally organized into effector organs (muscles and glands, the motor neurons, central pattern generators (CPG and higher control centers of the brain. Using genetic and electrophysiological methods, we have begun to deconstruct the motor system driving Drosophila larval feeding behavior into its component parts. In this paper, we identify distinct clusters of motor neurons that execute head tilting, mouth hook movements, and pharyngeal pumping during larval feeding. This basic anatomical scaffold enabled the use of calcium-imaging to monitor the neural activity of motor neurons within the central nervous system (CNS that drive food intake. Simultaneous nerve- and muscle-recordings demonstrate that the motor neurons innervate the cibarial dilator musculature (CDM ipsi- and contra-laterally. By classical lesion experiments we localize a set of CPGs generating the neuronal pattern underlying feeding movements to the subesophageal zone (SEZ. Lesioning of higher brain centers decelerated all feeding-related motor patterns, whereas lesioning of ventral nerve cord (VNC only affected the motor rhythm underlying pharyngeal pumping. These findings provide a basis for progressing upstream of the motor neurons to identify higher regulatory components of the feeding motor system.

  6. Nonresidential Crime Attractors and Generators Elevate Perceived Neighborhood Crime and Incivilities

    Science.gov (United States)

    McCord, Eric S.; Ratcliffe, Jerry H.; Garcia, R. Marie; Taylor, Ralph B.

    2007-01-01

    Recent studies have produced conflicting findings about the impacts of local nonresidential land uses on perceived incivilities. This study advances work in this area by developing a land-use perspective theoretically grounded in Brantingham and Brantingham's geometry of crime model in environmental criminology. That focus directs attention to…

  7. Foreign Nationals as Offenders and Victims in Malaysian Crime News

    Directory of Open Access Journals (Sweden)

    Misman Norealyna

    2017-01-01

    Full Text Available Foreign nationals in Malaysia come from all corners of the world. They are here as migrant labour, highly skilled and professional migrants (expatriates, illegal migrants, refugees, asylum-seekers (Burmese asylum seekers with UNHCR card, forced migrants (human trafficking victims, students, and tourists. The influx of foreign nationals residing in Malaysia coincides with greater number of crime news featuring foreign nationals. This study explores the social construction of foreign nationals as the ‘other’ in the local crime news published by Malaysian newspapers. 94 news headlines and lead sentences of local crime news involving foreign nationals were identified and analysed for this study. Findings suggest that Malaysian newspapers magnify foreign nationals’ migration status in each crime news.

  8. Responding to Identity Crime on the Internet

    Directory of Open Access Journals (Sweden)

    Eric Holm

    2015-05-01

    Full Text Available This paper discusses the unique challenges of responding to identity crime. Identity crime involves the use of personal identification information to perpetrate crimes. As such, identity crime involves using personal and private information to for illegal purposes. In this article, the two significant issues that obstruct responses to this crime are considered. These are first, the reporting of crime, and second the issue of jurisdiction. The paper also presents an exploration of some responses to identity crime.

  9. Extent and patterns of community collaboration in local health departments: An exploratory survey

    Directory of Open Access Journals (Sweden)

    Fisher John W

    2011-10-01

    Full Text Available Abstract Background Local public health departments (LHDs in the United States have been encouraged to collaborate with various other community organizations and individuals. Current research suggests that many forms of active partnering are ongoing, and there are numerous examples of LHD collaboration with a specific organization for a specific purpose or program. However, no existing research has attempted to characterize collaboration, for the defined purpose of setting community health status priorities, between a defined population of local officials and a defined group of alternative partnering organizations. The specific aims of this study were to 1 determine the range of collaborative involvement exhibited by a study population of local public health officials, and, 2 characterize the patterns of the selection of organizations/individuals involved with LHDs in the process of setting community health status priorities. Methods Local health department officials in North Carolina (n = 53 responded to an exploratory survey about their levels of involvement with eight types of possible collaborator organizations and individuals. Descriptive statistics and the stochastic clustering technique of Self-Organizing Maps (SOM were used to characterize their collaboration. Results Local health officials vary extensively in their level of collaboration with external collaborators. While the range of total involvement varies, the patterns of involvement for this specific function are relatively uniform. That is, regardless of the total level of involvement (low, medium or high, officials maintain similar hierarchical preference rankings with Community Advisory Boards and Local Boards of Health most involved and Experts and Elected Officials least involved. Conclusion The extent and patterns of collaboration among LHDs with other community stakeholders for a specific function can be described and ultimately related to outcome measures of LHD performance.

  10. Reconstruction of crimes by infrared photography.

    Science.gov (United States)

    Sterzik, V; Bohnert, M

    2016-09-01

    Whenever blunt or sharp forces are used in a crime, analysis of bloodstain pattern distribution may provide important information for the reconstruction of happenings. Thereby, attention should be paid to both the crime scene and the clothes of everyone involved in the crime. On dark textiles, though, it is difficult or even impossible for the human eye to detect bloodstains because of the low contrast to the background. However, in the near infrared wavelength range, contrast is considerably higher. Many textiles reflect light beyond a wavelength of 830 nm and thus appear light-colored, whereas blood absorbs the light and appears dark. In our studies, a D7000 NIKON reflex camera modified for infrared photography produced high-resolution photographs visualizing even very small spatter stains on dark textiles. The equipment can be used at any crime scene or lab and provides immediately available and interpretable images. Thus, important findings can be obtained at an early stage of police investigations, as two examples (homicide and attempted homicide) illustrate.

  11. Travel determinants and multi-scale transferability of national activity patterns to local populations

    Energy Technology Data Exchange (ETDEWEB)

    Henson, Kriste M [Los Alamos National Laboratory; Gou; ias, Konstadinos G [UCSB

    2010-11-30

    The ability to transfer national travel patterns to a local population is of interest when attempting to model megaregions or areas that exceed metropolitan planning organization (MPO) boundaries. At the core of this research are questions about the connection between travel behavior and land use, urban form, and accessibility. As a part of this process, a group of land use variables have been identified to define activity and travel patterns for individuals and households. The 2001 National Household Travel Survey (NHTS) participants are divided into categories comprised of a set of latent cluster models representing persons, travel, and land use. These are compared to two sets of cluster models constructed for two local travel surveys. Comparison of means statistical tests are used to assess differences among sociodemographic groups residing in localities with similar land uses. The results show that the NHTS and the local surveys share mean population activity and travel characteristics. However, these similarities mask behavioral heterogeneity that are shown when distributions of activity and travel behavior are examined. Therefore, data from a national household travel survey cannot be used to model local population travel characteristics if the goal to model the actual distributions and not mean travel behavior characteristics.

  12. Classification of skin cancer images using local binary pattern and SVM classifier

    Science.gov (United States)

    Adjed, Faouzi; Faye, Ibrahima; Ababsa, Fakhreddine; Gardezi, Syed Jamal; Dass, Sarat Chandra

    2016-11-01

    In this paper, a classification method for melanoma and non-melanoma skin cancer images has been presented using the local binary patterns (LBP). The LBP computes the local texture information from the skin cancer images, which is later used to compute some statistical features that have capability to discriminate the melanoma and non-melanoma skin tissues. Support vector machine (SVM) is applied on the feature matrix for classification into two skin image classes (malignant and benign). The method achieves good classification accuracy of 76.1% with sensitivity of 75.6% and specificity of 76.7%.

  13. Institutional isolation and crime: The mediating effect of disengaged youth on levels of crime.

    Science.gov (United States)

    Thomas, Shaun A; Shihadeh, Edward S

    2013-09-01

    We propose that structural resource deprivation and a weak civic participatory culture foster institutional isolation among youth, which, in turn, elevates rates of crime. Robust institutional attachments are essential to mainstream cultural learning, the internalization of mainstream values, the development of local network ties, and pro-social behavior. Communities that fail to embed residents, particularly youth, within a conventional institutional framework are ill-equipped for concerted action and unable to defend community interest and solve common problems, including crime. Using county-level census data we identify a group of youth who are simultaneously disengaged from a wide swath of mainstream social institutions, those we term "floaters." Analyses of aggregate levels of homicide, aggravated assault, robbery, and burglary around 2000 offer strong support for a mediation model indicating that structural deprivation and a weak civic participatory culture increase the presence of floaters which, in turn, raises levels of violent and property crime. We discuss the implications of our findings.

  14. Topographically controlled soil moisture is the primary driver of local vegetation patterns across a lowland region

    DEFF Research Database (Denmark)

    Moeslund, Jesper Erenskjold; Arge, Lars; Bøcher, Peder Klith

    2013-01-01

    Topography is recognized as an important factor in controlling plant distribution and diversity patterns, but its scale dependence and the underlying mechanisms by which it operates are not well understood. Here, we used novel high-resolution (2-m scale) topographic data from more than 30500...... vegetation plots to assess the importance of topography for local plant diversity and distribution patterns across Denmark, a 43000 km2 lowland region. The vegetation data came from 901 nature conservation sites (mean size = 0.16 km2) distributed throughout Denmark, each having an average of 34 plots (five...... and 250 × 250 m) was used to identify the horizontal resolution yielding the strongest vegetation–topography relationships. Using data scaled at this resolution, we quantified local (within-site) and regional (among sites) relationships between elevation, mechanistic topographic factors (slope, heat index...

  15. Kernel Learning of Histogram of Local Gabor Phase Patterns for Face Recognition

    Directory of Open Access Journals (Sweden)

    Bineng Zhong

    2008-06-01

    Full Text Available This paper proposes a new face recognition method, named kernel learning of histogram of local Gabor phase pattern (K-HLGPP, which is based on Daugman’s method for iris recognition and the local XOR pattern (LXP operator. Unlike traditional Gabor usage exploiting the magnitude part in face recognition, we encode the Gabor phase information for face classification by the quadrant bit coding (QBC method. Two schemes are proposed for face recognition. One is based on the nearest-neighbor classifier with chi-square as the similarity measurement, and the other makes kernel discriminant analysis for HLGPP (K-HLGPP using histogram intersection and Gaussian-weighted chi-square kernels. The comparative experiments show that K-HLGPP achieves a higher recognition rate than other well-known face recognition systems on the large-scale standard FERET, FERET200, and CAS-PEAL-R1 databases.

  16. Adapting to Hard Times: Family Participation Patterns in Local Thrift Economies

    OpenAIRE

    James, Spencer; Brown, Ralph B.; Goodsell, Todd L.; Stovall, Josh; Flaherty, Jeremy

    2010-01-01

    Using survey data from a western U.S. county (N = 595), we examined how lower, middle, and higher income families negotiate a period of economic stress—the closing of a major employer in the community—through their shopping patterns. Specifically, we examined their participation in local thrift economies such as yard sales and secondhand stores. We found that lower and middle income households shop more frequently at these venues. They also tend to shop more for furniture and clothing, wherea...

  17. Facial expression recognition based on improved local ternary pattern and stacked auto-encoder

    Science.gov (United States)

    Wu, Yao; Qiu, Weigen

    2017-08-01

    In order to enhance the robustness of facial expression recognition, we propose a method of facial expression recognition based on improved Local Ternary Pattern (LTP) combined with Stacked Auto-Encoder (SAE). This method uses the improved LTP extraction feature, and then uses the improved depth belief network as the detector and classifier to extract the LTP feature. The combination of LTP and improved deep belief network is realized in facial expression recognition. The recognition rate on CK+ databases has improved significantly.

  18. The Crime Curve of Turkey: Does crime decrease with age?

    Directory of Open Access Journals (Sweden)

    Mehmet Akalın

    2016-06-01

    Full Text Available Age distribution of crime is one of the few issues in criminology that received sufficient attention in the West. Some scholars argued that this age distribution is adequately invariant over time, place and type of crime; whereas, others admit that this distribution differs over place and type of crime. Although age-crime curve looks similar in many ways, in fact, a slight difference has been recognized in most countries. This age-crime curve may also help out to focus more on the causes of criminality of specific age groups. Establishing this age distribution is also important because it may play a guiding role for law enforcement personnel and in constructing preventive programs. This article is written primarily to find out how age-crime curve looks like in Turkey. In doing this, prison statistics used here as the primary source.

  19. Cavity solitons and localized patterns in a finite-size optical cavity

    Energy Technology Data Exchange (ETDEWEB)

    Kozyreff, G. [Optique Nonlineaire Theorique, Universite Libre de Bruxelles (U.L.B.), CP 231 (Belgium); Gelens, L. [Applied Physics Research Group (APHY), Vrije Universiteit Brussel (Belgium)

    2011-08-15

    In appropriate ranges of parameters, laser-driven nonlinear optical cavities can support a wide variety of optical patterns, which could be used to carry information. The intensity peaks appearing in these patterns are called cavity solitons and are individually addressable. Using the Lugiato-Lefever equation to model a perfectly homogeneous cavity, we show that cavity solitons can only be located at discrete points and at a minimal distance from the edges. Other localized states which are attached to the edges are identified. By interpreting these patterns in an information coding frame, the information capacity of this dynamical system is evaluated. The results are explained analytically in terms of the the tail characteristics of the cavity solitons. Finally, the influence of boundaries and of cavity imperfections on cavity solitons are compared.

  20. Cavity solitons and localized patterns in a finite-size optical cavity

    Science.gov (United States)

    Kozyreff, G.; Gelens, L.

    2011-08-01

    In appropriate ranges of parameters, laser-driven nonlinear optical cavities can support a wide variety of optical patterns, which could be used to carry information. The intensity peaks appearing in these patterns are called cavity solitons and are individually addressable. Using the Lugiato-Lefever equation to model a perfectly homogeneous cavity, we show that cavity solitons can only be located at discrete points and at a minimal distance from the edges. Other localized states which are attached to the edges are identified. By interpreting these patterns in an information coding frame, the information capacity of this dynamical system is evaluated. The results are explained analytically in terms of the the tail characteristics of the cavity solitons. Finally, the influence of boundaries and of cavity imperfections on cavity solitons are compared.

  1. AFM imaging and analysis of local mechanical properties for detection of surface pattern of functional groups

    Energy Technology Data Exchange (ETDEWEB)

    Knotek, Petr, E-mail: petr.knotek@upce.cz [University of Pardubice, Faculty of Chemical Technology, Joint Laboratory of Solid State Chemistry of IMC ASCR and University of Pardubice, Studentska 573, 532 10 Pardubice (Czech Republic); Chanova, Eliska; Rypacek, Frantisek [Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovskeho sq. 2, 162 06 Prague (Czech Republic)

    2013-05-01

    In this work we evaluate the applicability of different atomic force microscopy (AFM) modes, such as Phase Shift Imaging, Atomic Force Acoustic Microscopy (AFAM) and Force Spectroscopy, for mapping of the distribution pattern of low-molecular-weight biomimetic groups on polymer biomaterial surfaces. Patterns with either random or clustered spatial distribution of bioactive peptide group derived from fibronectin were prepared by surface deposition of functional block copolymer nano-colloids and grafted with RGDS peptide containing the sequence of amino acids arginine–glycine–aspartic acid–serine (conventionally labeled as RGDS) and carrying biotin as a tag. The biotin-tagged peptides were labeled with 40 nm streptavidin-modified Au nanospheres. The peptide molecules were localized through the detection of bound Au nanospheres by AFM, and thus, the surface distribution of peptides was revealed. AFM techniques capable of monitoring local mechanical properties of the surface were proved to be the most efficient for identification of Au nano-markers. The efficiency was successfully demonstrated on two different patterns, i.e. random and clustered distribution of RGDS peptides on structured surface of the polymer biomaterial. Highlights: ► Bioactive peptides for cell adhesion on PLA-b-PEO biomimetic surface were visualized. ► The biotin-tagged RGDS peptides were labeled with streptavidin-Au nanospheres. ► The RGDS pattern was detected using different atomic force microscopy (AFM) modes. ► Phase Shift Image was proved to be suitable method for studying peptide distribution.

  2. Patterns and prognosis of locally recurrent rectal cancer following multidisciplinary treatment

    Institute of Scientific and Technical Information of China (English)

    Jun Zhao; Chang-Zheng Du; Ying-Shi Sun; Jin Gu

    2012-01-01

    AIM:To investigate the patterns and decisive prognostic factors for local recurrence of rectal cancer treated with a multidisciplinary team (MDT) modality.METHODS:Ninety patients with local recurrence were studied,out of 1079 consecutive rectal cancer patients who underwent curative surgery from 1999 to 2007.For each patient,the recurrence pattern was assessed by specialist radiologists from the MDT using imaging,and the treatment strategy was decided after discussion by the MDT.The associations between clinicopathological factors and long-term outcomes were evaluated using both univariate and multivariate analysis.RESULTS:The recurrence pattern was classified as follows:Twenty-seven (30%) recurrent tumors were evaluated as axial type,21 (23.3%) were anterior type,8 (8.9%) were posterior type,and 13 (25.6%) were lateral type.Forty-one patients had tumors that were evaluated as resectable by the MDT and ultimately received surgery,and R0 resection was achieved in 36 (87.8%) of these patients.The recurrence pattern was closely associated with resectability and R0 resection rate (P < 0.001).The recurrence pattern,interval to recurrence,and RO resection were significantly associated with 5-year survival rate in univariate analysis.Multivariate analysis showed that the R0 resection was the unique independent factor affecting long-term survival.CONCLUSION:The MDT modality improves patient selection for surgery by enabling accurate classification of the recurrence pattern; RO resection is the most significant factor affecting long-term survival.

  3. [Abortion and crime].

    Science.gov (United States)

    Citoni, Guido

    2011-01-01

    In this article we address the issue, with a tentative empirical application to the Italian data, of the relationship, very debated mainly in north America, between abortion legalization and reduction of crime rates of youth. The rationale of this relationship is that there is a causal factor at work: the more unwanted pregnancies aborted, the less unwanted children breeding their criminal attitude in an hostile/deprived family environment. Many methodological and empirical criticisms have been raised against the proof of the existence of such a relationship: our attempt to test if this link is valid for Italy cannot endorse its existence. The data we used made necessary some assumptions and the reliability of official estimates of crime rates was debatable (probably downward biased). We conclude that, at least for Italy, the suggested relationship is unproven: other reasons for the need of legal abortion have been and should be put forward.

  4. Morphometry based on effective and accurate correspondences of localized patterns (MEACOLP.

    Directory of Open Access Journals (Sweden)

    Hu Wang

    Full Text Available Local features in volumetric images have been used to identify correspondences of localized anatomical structures for brain morphometry. However, the correspondences are often sparse thus ineffective in reflecting the underlying structures, making it unreliable to evaluate specific morphological differences. This paper presents a morphometry method (MEACOLP based on correspondences with improved effectiveness and accuracy. A novel two-level scale-invariant feature transform is used to enhance the detection repeatability of local features and to recall the correspondences that might be missed in previous studies. Template patterns whose correspondences could be commonly identified in each group are constructed to serve as the basis for morphometric analysis. A matching algorithm is developed to reduce the identification errors by comparing neighboring local features and rejecting unreliable matches. The two-sample t-test is finally adopted to analyze specific properties of the template patterns. Experiments are performed on the public OASIS database to clinically analyze brain images of Alzheimer's disease (AD and normal controls (NC. MEACOLP automatically identifies known morphological differences between AD and NC brains, and characterizes the differences well as the scaling and translation of underlying structures. Most of the significant differences are identified in only a single hemisphere, indicating that AD-related structures are characterized by strong anatomical asymmetry. In addition, classification trials to differentiate AD subjects from NC confirm that the morphological differences are reliably related to the groups of interest.

  5. A local and global statistics pattern analysis method and its application to process fault identification☆

    Institute of Scientific and Technical Information of China (English)

    Hanyuan Zhang; Xuemin Tian; Xiaogang Deng; Lianfang Cai

    2015-01-01

    Traditional principal component analysis (PCA) is a second-order method and lacks the ability to provide higher-order representations for data variables. Recently, a statistics pattern analysis (SPA) framework has been incor-porated into PCA model to make full use of various statistics of data variables effectively. However, these methods omit the local information, which is also important for process monitoring and fault diagnosis. In this paper, a local and global statistics pattern analysis (LGSPA) method, which integrates SPA framework and locality pre-serving projections within the PCA, is proposed to utilize various statistics and preserve both local and global in-formation in the observed data. For the purpose of fault detection, two monitoring indices are constructed based on the LGSPA model. In order to identify fault variables, an improved reconstruction based contribution (IRBC) plot based on LGSPA model is proposed to locate fault variables. The RBC of various statistics of original process variables to the monitoring indices is calculated with the proposed RBC method. Based on the calculated RBC of process variables' statistics, a new contribution of process variables is built to locate fault variables. The simula-tion results on a simple six-variable system and a continuous stirred tank reactor system demonstrate that the proposed fault diagnosis method can effectively detect fault and distinguish the fault variables from normal variables.

  6. Crime Without Borders

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    As gangs grow increasingly globalized, organized crime is becoming a problem hindering international economic development In late 2005, Dutch police raided Hells Angels clubhouses around the country. In a coordinated sweep that followed a yearlong investigation, police carried out predawn searches in six towns and cities in the Netherlands, arresting 45 members of the motorcycle club, laying scores of charges and seizing an assortment of weapons. Such large-scale raids were rare in Dutch history, and the...

  7. Investigating the Influence of Tree Coverage on Property Crime: a Case Study in the City of Vancouver, British Columbia, Canada

    Science.gov (United States)

    Chen, Yifei; Li, Yuenan; Li, Jonathan

    2016-06-01

    With the development of Geographic Information Systems (GIS), crime mapping becomes an effective approach to investigate the spatial pattern of crime in a defined area. Understanding the relationship between crime and its surrounding environment can reveal possible strategies that can reduce crime in a neighbourhood. The relationship between vegetation density and crime has been under debate for a long time. This research is conducted to investigate the impacts of tree coverage on property crime in the City of Vancouver. High spatial resolution airborne LiDAR data collected in 2013 was used for the extraction of tree covered area for cross-sectional analysis. The independent variables were put into Ordinary Least-Squares (OLS) regression, Spatial Lag regression, and Geographically Weighted Regression (GWR) models to examine their influences on property crime rates. According to the results, the cross-sectional analysis demonstrated statistical evidences that property crime rates had negative correlations with tree coverage, with greater influences occurred around Downtown Vancouver.

  8. Crime fiction and mediatized religion

    DEFF Research Database (Denmark)

    Hansen, Kim Toft

    In recent Scandinavian crime fiction an ongoing discussion on religion and religiosity is taking place. This undercurrent goes historically a long way back, but the past few decades seem to have left room for an altered view on religion in modern crime fiction. Crime fiction has usually been...... connected with modernity, modern society and ensuing secularity, but the question is, then, what happens to crime fiction if modern societies no longer uphold its trust in secular ideals. The thesis is that this leaves modern Scandinavian media open for a religious discussion which then also seeps...... into popular crime fiction. In novels by Arne Dahl, Henning Mortensen, Gunnar Staalesen, A.J. Kazinski, Gretelise Holm and several other Scandinavian writers of crime fiction it is possible to locate an interest in theology and topics of religious philosophy which reflects this current trend in modern...

  9. Religion in Scandinavian Crime Fiction

    DEFF Research Database (Denmark)

    Hansen, Kim Toft

    In recent Scandinavian crime fiction an ongoing discussion on religion and religiosity is taking place. This undercurrent goes historically a long way back, but the past few decades seem to have left room for an altered view on religion in modern crime fiction. Crime fiction has usually been...... connected with modernity, modern society and ensuing secularity, but the question is, then, what happens to crime fiction if modern societies no longer uphold its trust in secular ideals. The thesis is that this leaves modern Scandinavian media open for a religious discussion which then also seeps...... into popular crime fiction. In novels by Arne Dahl, Henning Mortensen, Gunnar Staalesen, A.J. Kazinski, Gretelise Holm and several other Scandinavian writers of crime fiction it is possible to locate an interest in theology and topics of religious philosophy which reflects this current trend in modern...

  10. Face Retrieval Based On Local Binary Pattern and Its Variants: A Comprehensive Study

    Directory of Open Access Journals (Sweden)

    Phan Khoi

    2016-06-01

    Full Text Available Face retrieval (FR is one of the specific fields in content-based image retrieval (CBIR. Its aim is to search relevant faces in large database based on the contents of the images rather than the metadata. It has many applications in important areas such as face searching, forensics, and identification… In this paper, we experimentally evaluate Face Retrieval based on Local Binary Pattern (LBP and its variants: Rotation Invariant Local Binary Pattern (RILBP and Pyramid of Local Binary Pattern (PLBP. We also use a grid LBP based operator, which divides an image into 6×7 sub-regions then concentrates LBP feature vector from each of them into a spatially enhanced feature histogram. These features were firstly tested on three fontal face datasets: The Database of Faces (TDF, Caltech Faces 1999 (CF1999 and the combination of The Database of faces and Caltech Faces 1999 (CF. Good result on these dataset has encouraged us to conduct tests on Labeled Faces in the Wild (LFW, where the images were taken from real-world condition. Mean average precision (MAP was used for measuring the performance of the system. We carry out the experiments in two main stages indexing and searching with the use of k-fold cross-validation. We further boost the system by using Locality Sensitive Hashing (LSH. Furthermore, we also evaluate the impact of LSH on the searching stage. The experimental results have shown that LSH is effective for face searching as well as LBP is robust feature in fontal face retrieval.

  11. "Safe Going": the influence of crime rates and perceived crime and safety on walking in deprived neighbourhoods.

    Science.gov (United States)

    Mason, Phil; Kearns, Ade; Livingston, Mark

    2013-08-01

    Few studies have simultaneously examined the relationship of levels of recorded crime, perceptions of crime and disorder, and safety from crime with rates of physical activity. We developed a series of multilevel ordinal regression models to examine these aspects in relation to self-reported neighbourhood walking frequency in a cross-sectional sample of 3824 British adults from 29 deprived neighbourhoods in Glasgow, UK. Perceptions of several serious local antisocial behaviours (drunkenness and burglary) and feelings of personal safety (feeling safe in the home and if walking alone in the local area at night) were consistently associated, respectively, with less and more frequent walking. Conversely, perceiving drug dealing or drug use as a serious problem was associated with walking more frequently. There was a small but significant association between walking frequency in neighbourhoods with higher recorded person crime (but not property crime) rates when considered in conjunction with other aspects of disorder and crime safety, although not when additionally controlling for sociodemographic, neighbourhood and community aspects. The magnitude of these objective and perceived crime-related effects is modest and features of the psychosocial environment and social cohesion (having a sense of progress from living in the neighbourhood, group participation and positively rating social venues), as well as health and personal income deprivation, may more strongly determine levels of neighbourhood walking. Nevertheless, physical activity benefits may accrue at the population level through provision of environments that are safer from crime. Our study also shows the importance to local walking of neighbourhood management, which reduces problems of disorder, and of social regeneration, which helps strengthen sense of community.

  12. LGBTI Variations in Crime Reporting

    OpenAIRE

    Miles-Johnson, Toby

    2013-01-01

    Research shows that people vary in their willingness to report crime to police depending on the type of crime experienced, their gender, age, and their race or ethnicity. Whether or not lesbian, gay, bisexual, transgender, and intersex (LGBTI) and heterosexual people vary in their willingness to report crime to the police is not well understood in the extant literature. In this article, I examine variations in LGBTI re...

  13. Did Legalized Abortion Lower Crime?

    OpenAIRE

    2001-01-01

    This paper examines the relationship between the legalization of abortion and subsequent decreases in crime. In a current study, researchers estimate that the legalization of abortion explains over half of the recent decline in national crime rates. The association is identified by correlating changes in crime with changes in the abortion ratio weighted by the proportion of the criminal population exposed to legalized abortion. In this paper, I use an alternative identification strategy. I an...

  14. 介绍贿赂罪存废之辩及其行为模式%Controversy on the Existence or Abolishment of Intro-bribe Crime and Study on Its Behavior Pattern

    Institute of Scientific and Technical Information of China (English)

    徐歌旋

    2015-01-01

    Intro-bribe crime is the special form of bribery abettor.If it could suit punishment to crime,the actor should be punished by intro-bribe crime.Legislators create this crime in order to enlarge the punishment scope of bribery behavior,so the j udicial office should expand interpretation of intro-bribe crime.Although there are many arguments about intro-bribe crime,yet in order to prevent the punishment vulnerability,intro-bribe alone still has its existing value.%介绍贿赂罪是行贿罪帮助犯的特别形式,在能做到罪刑相适应时应当以介绍贿赂罪论处。立法者设立此罪的目的是为了扩大介绍贿赂行为的处罚范围,故应当对“介绍”做扩大解释,介绍贿赂罪虽然争议不断,但是为了避免处罚漏洞,此罪仍有独立成罪之必要。

  15. Urban scaling and its deviations: revealing the structure of wealth, innovation and crime across cities.

    Science.gov (United States)

    Bettencourt, Luís M A; Lobo, José; Strumsky, Deborah; West, Geoffrey B

    2010-11-10

    With urban population increasing dramatically worldwide, cities are playing an increasingly critical role in human societies and the sustainability of the planet. An obstacle to effective policy is the lack of meaningful urban metrics based on a quantitative understanding of cities. Typically, linear per capita indicators are used to characterize and rank cities. However, these implicitly ignore the fundamental role of nonlinear agglomeration integral to the life history of cities. As such, per capita indicators conflate general nonlinear effects, common to all cities, with local dynamics, specific to each city, failing to provide direct measures of the impact of local events and policy. Agglomeration nonlinearities are explicitly manifested by the superlinear power law scaling of most urban socioeconomic indicators with population size, all with similar exponents (1.15). As a result larger cities are disproportionally the centers of innovation, wealth and crime, all to approximately the same degree. We use these general urban laws to develop new urban metrics that disentangle dynamics at different scales and provide true measures of local urban performance. New rankings of cities and a novel and simpler perspective on urban systems emerge. We find that local urban dynamics display long-term memory, so cities under or outperforming their size expectation maintain such (dis)advantage for decades. Spatiotemporal correlation analyses reveal a novel functional taxonomy of U.S. metropolitan areas that is generally not organized geographically but based instead on common local economic models, innovation strategies and patterns of crime.

  16. Urban scaling and its deviations: revealing the structure of wealth, innovation and crime across cities.

    Directory of Open Access Journals (Sweden)

    Luís M A Bettencourt

    Full Text Available With urban population increasing dramatically worldwide, cities are playing an increasingly critical role in human societies and the sustainability of the planet. An obstacle to effective policy is the lack of meaningful urban metrics based on a quantitative understanding of cities. Typically, linear per capita indicators are used to characterize and rank cities. However, these implicitly ignore the fundamental role of nonlinear agglomeration integral to the life history of cities. As such, per capita indicators conflate general nonlinear effects, common to all cities, with local dynamics, specific to each city, failing to provide direct measures of the impact of local events and policy. Agglomeration nonlinearities are explicitly manifested by the superlinear power law scaling of most urban socioeconomic indicators with population size, all with similar exponents (1.15. As a result larger cities are disproportionally the centers of innovation, wealth and crime, all to approximately the same degree. We use these general urban laws to develop new urban metrics that disentangle dynamics at different scales and provide true measures of local urban performance. New rankings of cities and a novel and simpler perspective on urban systems emerge. We find that local urban dynamics display long-term memory, so cities under or outperforming their size expectation maintain such (disadvantage for decades. Spatiotemporal correlation analyses reveal a novel functional taxonomy of U.S. metropolitan areas that is generally not organized geographically but based instead on common local economic models, innovation strategies and patterns of crime.

  17. An android application for crime analysis in San Diego

    Science.gov (United States)

    Gonchikara, Likhita

    Over the past few years, smartphone adoption has increased worldwide. In this era of smartphones, one of the easiest ways to make this information available to many users is through smartphone applications. Smartphone applications can provide requested information in a readable and user friendly format. Information related to data such as real estate, property, post offices, crime locations and many others can be very useful. Such information helps city planners, residents, students and commuters to identify and communicate trends and patterns about places. ESRI`s ARCGIS provides various services and tools which help visualize real-world features, discover patterns, obtain information, and communicate that information to others. When these services work in conjunction with GPS based location services in smartphones, they create new avenues for applications. This thesis implements an Android smartphone application with features to analyze location based crime data. The user of this application can view crime data in a region and filter different crime types. The application allows the user to query and analyze crimes that have occurred near his location or at a location of interest. The application includes features to measure distance between crime spots and also measure area on the map. The user can also switch the base-map from street map to NatGeo map. Powered with this information, renters and home buyers can ensure that their new home is in a safe location. Real estate agents can buy or sell property in safer locations. Commuters can find routes which avoid crime spots. Tourists can find accommodation in safer places. Students can be aware of the high crime rate areas around the school campus. This application uses ArcGIS feature service by ESRI to render all data on the map.

  18. Influence of atmospheric circulation patterns on local cloud and solar variability in Bergen, Norway

    Science.gov (United States)

    Parding, Kajsa; Olseth, Jan Asle; Liepert, Beate G.; Dagestad, Knut-Frode

    2016-08-01

    In a previous paper, we have shown that long-term cloud and solar observations (1965-2013) in Bergen, Norway (60.39°N, 5.33°E) are compatible with a largely cloud dominated radiative climate. Here, we explicitly address the relationship between the large scale circulation over Europe and local conditions in Bergen, identifying specific circulation shifts that have contributed to the observed cloud and solar variations. As a measure of synoptic weather patterns, we use the Grosswetterlagen (GWL), a daily classification of European weather for 1881-2013. Empirical models of cloud cover, cloud base, relative sunshine duration, and normalised global irradiance are constructed based on the GWL frequencies, extending the observational time series by more than 70 years. The GWL models successfully reproduce the observed increase in cloud cover and decrease in solar irradiance during the 1970s and 1980s. This cloud-induced dimming is traced to an increasing frequency of cyclonic and decreasing frequency of anticyclonic weather patterns over northern Europe. The changing circulation patterns in winter can be understood as a shift from the negative to the positive phase of the North Atlantic and Arctic Oscillation. A recent period of increasing solar irradiance is observed but not reproduce by the GWL models, suggesting this brightening is associated with factors other than large scale atmospheric circulation, possibly decreasing aerosol loads and local cloud shifts.

  19. Compare local pocket and global protein structure models by small structure patterns

    KAUST Repository

    Cui, Xuefeng

    2015-09-09

    Researchers proposed several criteria to assess the quality of predicted protein structures because it is one of the essential tasks in the Critical Assessment of Techniques for Protein Structure Prediction (CASP) competitions. Popular criteria include root mean squared deviation (RMSD), MaxSub score, TM-score, GDT-TS and GDT-HA scores. All these criteria require calculation of rigid transformations to superimpose the the predicted protein structure to the native protein structure. Yet, how to obtain the rigid transformations is unknown or with high time complexity, and, hence, heuristic algorithms were proposed. In this work, we carefully design various small structure patterns, including the ones specifically tuned for local pockets. Such structure patterns are biologically meaningful, and address the issue of relying on a sufficient number of backbone residue fragments for existing methods. We sample the rigid transformations from these small structure patterns; and the optimal superpositions yield by these small structures are refined and reported. As a result, among 11; 669 pairs of predicted and native local protein pocket models from the CASP10 dataset, the GDT-TS scores calculated by our method are significantly higher than those calculated by LGA. Moreover, our program is computationally much more efficient. Source codes and executables are publicly available at http://www.cbrc.kaust.edu.sa/prosta/

  20. An investigation of acoustic beam patterns for the sonar localization problem using a beam based method.

    Science.gov (United States)

    Guarato, Francesco; Windmill, James; Gachagan, Anthony; Harvey, Gerald

    2013-06-01

    Target localization can be accomplished through an ultrasonic sonar system equipped with an emitter and two receivers. Time of flight of the sonar echoes allows the calculation of the distance of the target. The orientation can be estimated from knowledge of the beam pattern of the receivers and the ratio, in the frequency domain, between the emitted and the received signals after compensation for distance effects and air absorption. The localization method is described and, as its performance strongly depends on the beam pattern, the search of the most appropriate sonar receiver in order to ensure the highest accuracy of target orientation estimations is developed in this paper. The structure designs considered are inspired by the ear shapes of some bat species. Parameters like flare rate, truncation angle, and tragus are considered in the design of the receiver structures. Simulations of the localization method allow us to state which combination of those parameters could provide the best real world implementation. Simulation results show the estimates of target orientations are, in the worst case, 2° with SNR = 50 dB using the receiver structure chosen for a potential practical implementation of a sonar system.

  1. Methods for simultaneously identifying coherent local clusters with smooth global patterns in gene expression profiles

    Directory of Open Access Journals (Sweden)

    Lee Yun-Shien

    2008-03-01

    Full Text Available Abstract Background The hierarchical clustering tree (HCT with a dendrogram 1 and the singular value decomposition (SVD with a dimension-reduced representative map 2 are popular methods for two-way sorting the gene-by-array matrix map employed in gene expression profiling. While HCT dendrograms tend to optimize local coherent clustering patterns, SVD leading eigenvectors usually identify better global grouping and transitional structures. Results This study proposes a flipping mechanism for a conventional agglomerative HCT using a rank-two ellipse (R2E, an improved SVD algorithm for sorting purpose seriation by Chen 3 as an external reference. While HCTs always produce permutations with good local behaviour, the rank-two ellipse seriation gives the best global grouping patterns and smooth transitional trends. The resulting algorithm automatically integrates the desirable properties of each method so that users have access to a clustering and visualization environment for gene expression profiles that preserves coherent local clusters and identifies global grouping trends. Conclusion We demonstrate, through four examples, that the proposed method not only possesses better numerical and statistical properties, it also provides more meaningful biomedical insights than other sorting algorithms. We suggest that sorted proximity matrices for genes and arrays, in addition to the gene-by-array expression matrix, can greatly aid in the search for comprehensive understanding of gene expression structures. Software for the proposed methods can be obtained at http://gap.stat.sinica.edu.tw/Software/GAP.

  2. Antenna Radiation Pattern Influence on the Localization Accuracy in Wireless Sensor Networks

    Directory of Open Access Journals (Sweden)

    COCA, E.

    2013-05-01

    Full Text Available Localization or position determination is one of the most common applications for the wireless sensor networks. Many investigations have been made during the last decade, most of the effort being concentrated in the direction of improving the accuracy of the positioning results by using complex filtering and correction algorithms, and other techniques such as radio maps or directive antennas for the reference nodes. The most common sources of errors include reflections on nearby objects, radio frequency noise, and variable characteristics of the communication channel. In the vast majority of cases, several assumptions have been made in order to simplify the computing algorithms or the complexity of nodes, and finally their cost. The omnidirectional radiation pattern of the node antennas is such an assumption. In this paper we investigate theoretically and validate by measurements the influence of the radiation pattern on the localization accuracy of a wireless sensor node network. By taking into consideration the orientation of nodes, which could be provided by a local digital compass on each node, we demonstrate that the position accuracy could be improved with a minimum of resources. All measurements were made in radio emissions controlled environment - a semi-anechoic chamber, without affecting the generality of the proposed solution.

  3. Spatially Localized Chemical Patterns around an A + B → Oscillator Front.

    Science.gov (United States)

    Budroni, M A; Lemaigre, L; Escala, D M; Muñuzuri, A P; De Wit, A

    2016-02-18

    When two gels, each loaded with a different set of reactants A and B of an oscillatory reaction, are brought into contact, reaction-diffusion patterns such as waves or Turing patterns can develop in the reactive contact zone. The initial condition which separates the reactants at the beginning leads to a localization in space of the different dynamical regimes accessible to the chemical oscillator. We study here both numerically and experimentally the composite traveling structures resulting from the interaction between chemical fronts and localized waves in the case in which the reactants of such an A + B → oscillator system are those of the canonical Belousov-Zhabotinsky (BZ) oscillating reaction. A transition between different dynamics is obtained by varying the initial concentration of the organic substrate of the BZ reactants, which is one of the parameters controlling the local excitability. We show that the dynamical regime (excitable or oscillatory) characterizing the BZ oscillator in the initial contact area is the key feature which determines the spatiotemporal evolution of the system. The experimental results are in qualitative agreement with the theoretical predictions.

  4. Tourism and Crime: Evidence from the Philippines

    OpenAIRE

    Rosalina Palanca-Tan; Garces, Len Patrick Dominic M.; Angelica Nicole C. Purisima; Zaratan, Angelo Christian L.

    2015-01-01

    Using panel data gathered from 16 regions of the Philippines for the period 2009–11, this paper investigates the relationship between tourism and crime. The findings of the study show that the relation between tourism and crime may largely depend on the characteristics of visitors and the types of crime. For all types of crime and their aggregate, no significant correlation between the crime rate (defined as the number of crime cases divided by population) and total tourist arrivals is found....

  5. A Cure for Crime? Psycho-Pharmaceuticals and Crime Trends

    Science.gov (United States)

    Marcotte, Dave E.; Markowitz, Sara

    2011-01-01

    In this paper we consider possible links between the diffusion of new pharmaceuticals used for treating mental illness and crime rates. We describe recent trends in crime and review the evidence showing that mental illness is a clear risk factor both for criminal behavior and victimization. We summarize the development of a number of new…

  6. Assessing Spatial Relationships Between Rates of Crime and Rates of Gonorrhea and Chlamydia in Chicago, 2012.

    Science.gov (United States)

    Marotta, Phillip

    2016-09-26

    Sexually transmitted infections (STIs) remain serious public health problems particularly in urban environments in the USA. Despite accumulating research into the role of aggregate rates of crime in shaping rates of STIs, few studies account for spatial dependence in the structure of geographical data. Using multiple spatial analysis methodologies, the following study investigated spatial patterns in community area rates of violent, drug, and property crimes and rates of infection of gonorrhea and chlamydia in 77 community areas in Chicago. Moran's I analyses confirmed global spatial dependence and statistically significant clusters of STI. Spatial lag regression analyses found that greater rates of drug crimes were associated with higher rates of chlamydia and gonorrhea after adjusting for percent in poverty and racial composition. Finally, a weighted geographic regression identified regions in the urban environment in which local regression coefficient values diverged from their global estimates. Spatial heterogeneity of STIs suggest that public health interventions must be targeted to specific areas of the urban environment with particular attention to substance use.

  7. Three dimensional simulations of pattern formation during high-pressure, freely localized microwave breakdown in air

    Energy Technology Data Exchange (ETDEWEB)

    Kourtzanidis, K., E-mail: Konstantinos.Kourtzanidis@onera.fr; Boeuf, J. P. [LAPLACE (Laboratoire Plasma et Conversion d' Energie), Université de Toulouse, UPS, INPT, 118 route de Narbonne, F-31062 Toulouse Cedex 9 (France); Rogier, F. [ONERA - The French Aerospace Lab, 2 Avenue édouard Belin, 31000 Toulouse (France)

    2014-12-15

    Recent experiments have demonstrated that a freely localized 100 GHz microwave discharge can propagate towards the microwave source with high speed, forming a complex pattern of self-organized filaments. We present three-dimensional simulations of the formation and propagation of such patterns that reveal more information on their nature and interaction with the electromagnetic waves. The developed three-dimensional Maxwell-plasma solver permits the study of different forms of incident field polarization. Results for linear and circular polarization of the wave are presented and comparisons with recent experiments show a good overall agreement. The three dimensional simulations provide a quantitative analysis of the parameters controlling the time and length scales of the strongly non-linear plasma dynamics and could be useful for potential microwave plasma applications such as aerodynamic flow and combustion control.

  8. Regular and irregular patterns of self-localized excitation in arrays of coupled phase oscillators

    Energy Technology Data Exchange (ETDEWEB)

    Wolfrum, Matthias; Omel' chenko, Oleh E. [Weierstrass Institute, Mohrenstrasse 39, Berlin 10117 (Germany); Sieber, Jan [College of Engineering, Mathematics and Physical Sciences, University of Exeter, North Park Road, Exeter EX4 4QF (United Kingdom)

    2015-05-15

    We study a system of phase oscillators with nonlocal coupling in a ring that supports self-organized patterns of coherence and incoherence, called chimera states. Introducing a global feedback loop, connecting the phase lag to the order parameter, we can observe chimera states also for systems with a small number of oscillators. Numerical simulations show a huge variety of regular and irregular patterns composed of localized phase slipping events of single oscillators. Using methods of classical finite dimensional chaos and bifurcation theory, we can identify the emergence of chaotic chimera states as a result of transitions to chaos via period doubling cascades, torus breakup, and intermittency. We can explain the observed phenomena by a mechanism of self-modulated excitability in a discrete excitable medium.

  9. Topographically controlled soil moisture is the primary driver of local vegetation patterns across a lowland region

    DEFF Research Database (Denmark)

    Moeslund, Jesper Erenskjold; Arge, Lars; Bøcher, Peder Klith;

    2013-01-01

    vegetation plots to assess the importance of topography for local plant diversity and distribution patterns across Denmark, a 43000 km2 lowland region. The vegetation data came from 901 nature conservation sites (mean size = 0.16 km2) distributed throughout Denmark, each having an average of 34 plots (five...... relationships with the main species-compositional gradient, the main functional gradient and the plant's average soil moisture preference. The strength of these relationships was strongly influenced by habitat and site-level average moisture conditions, with the strongest relationships found in wet habitats....... While a plurality of underlying mechanisms may contribute to the relationship between topography and vegetation patterns, topographically controlled soil moisture exerts primary control on the relationship....

  10. Mining local climate data to assess spatiotemporal dengue fever epidemic patterns in French Guiana.

    Science.gov (United States)

    Flamand, Claude; Fabregue, Mickael; Bringay, Sandra; Ardillon, Vanessa; Quénel, Philippe; Desenclos, Jean-Claude; Teisseire, Maguelonne

    2014-10-01

    To identify local meteorological drivers of dengue fever in French Guiana, we applied an original data mining method to the available epidemiological and climatic data. Through this work, we also assessed the contribution of the data mining method to the understanding of factors associated with the dissemination of infectious diseases and their spatiotemporal spread. We applied contextual sequential pattern extraction techniques to epidemiological and meteorological data to identify the most significant climatic factors for dengue fever, and we investigated the relevance of the extracted patterns for the early warning of dengue outbreaks in French Guiana. The maximum temperature, minimum relative humidity, global brilliance, and cumulative rainfall were identified as determinants of dengue outbreaks, and the precise intervals of their values and variations were quantified according to the epidemiologic context. The strongest significant correlations were observed between dengue incidence and meteorological drivers after a 4-6-week lag. We demonstrated the use of contextual sequential patterns to better understand the determinants of the spatiotemporal spread of dengue fever in French Guiana. Future work should integrate additional variables and explore the notion of neighborhood for extracting sequential patterns. Dengue fever remains a major public health issue in French Guiana. The development of new methods to identify such specific characteristics becomes crucial in order to better understand and control spatiotemporal transmission. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  11. Community Safety and Crime Prevention Partnerships: Challenges and Opportunities

    Directory of Open Access Journals (Sweden)

    Patrick Sheperdson

    2014-04-01

    Full Text Available In many jurisdictions around the world, community safety and crime prevention activity is supported by interagency committees. In the Australian state of New South Wales (NSW, local government Community Safety Officers (CSOs lead, support or participate in a range of interagency and ‘whole of government’ networks, most of which were established to support central NSW state government crime prevention and community safety initiatives. Research was conducted with the aim of exploring the CSOs’ experience of the ‘whole of government’ partnerships established to support community safety and crime prevention in NSW.[i] The findings support international research which suggests that central-local partnerships are inhibited by different agendas, responsibilities and power dynamics across different levels of government. Some of the key contextual challenges for this work include concerns about costs shifting from State to local government and about shifting State government priorities; barriers to funding and to accessing crime (and other data; and various administrative burdens. Consequently, we argued that there is a need for formal engagement and negotiation between, on the one hand, State government agencies that steer NSW crime prevention and, on the other, community safety policy initiatives and local government. Such engagement could help overcome the perception, indeed the reality, that shifting and dumping costs and responsibilities to local government is creating a range of burdens for CSOs. [i] The authors thank the NSW Local Government Community Safety and Crime Prevention Network and the individual local government CSOs who kindly assisted and contributed to this research.

  12. Patterns of Alcohol Policy Enforcement Activities among Local Law Enforcement Agencies: A Latent Class Analysis.

    Science.gov (United States)

    Erickson, Darin J; Rutledge, Patricia C; Lenk, Kathleen M; Nelson, Toben F; Jones-Webb, Rhonda; Toomey, Traci L

    We assessed levels and patterns of alcohol policy enforcement activities among U.S. local law enforcement agencies. We conducted a cross-sectional survey of a representative sample of 1,631 local law enforcement agencies across the 50 states. We assessed 29 alcohol policy enforcement activities within each of five enforcement domains-underage alcohol possession/consumption, underage alcohol provision, underage alcohol sales, impaired driving, and overservice of alcohol-and conducted a series of latent class analyses to identify unique classes or patterns of enforcement activity for each domain. We identified three to four unique enforcement activity classes for each of the enforcement domains. In four of the domains, we identified a Uniformly Low class (i.e., little or no enforcement) and a Uniformly High enforcement activity class (i.e., relatively high levels of enforcement), with one or two middle classes where some but not all activities were conducted. The underage provision domain had a Uniformly Low class but not a Uniformly High class. The Uniformly Low class was the most prevalent class in three domains: underage provision (58%), underage sales (61%), and overservice (79%). In contrast, less than a quarter of agencies were in Uniformly High classes. We identified qualitatively distinct patterns of enforcement activity, with a large proportion of agencies in classes characterized by little or no enforcement and fewer agencies in high enforcement classes. An important next step is to determine if these patterns are associated with rates of alcohol use and alcohol-related injury and mortality.

  13. Similarity Estimation Between DNA Sequences Based on Local Pattern Histograms of Binary Images

    Institute of Scientific and Technical Information of China (English)

    Yusei Kobori; Satoshi Mizuta

    2016-01-01

    Graphical representation of DNA sequences is one of the most popular techniques for alignment-free sequence comparison. Here, we propose a new method for the feature extraction of DNA sequences represented by binary images, by estimating the similarity between DNA sequences using the frequency histograms of local bitmap patterns of images. Our method shows linear time complexity for the length of DNA sequences, which is practical even when long sequences, such as whole genome sequences, are compared. We tested five distance measures for the estimation of sequence similarities, and found that the histogram intersection and Manhattan distance are the most appropriate ones for phylogenetic analyses.

  14. Laser patterning: A new approach to measure local magneto-transport properties in multifilamentary superconducting tapes

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez Valdes, C.F. [Superconductivity Laboratory, Magnetism Laboratory, IMRE-Physics Faculty, University of Havana, 10400 Havana (Cuba); Perez-Penichet, C. [Superconductivity Laboratory, Magnetism Laboratory, IMRE-Physics Faculty, University of Havana, 10400 Havana (Cuba); Noda, C. [Superconductivity Laboratory, Magnetism Laboratory, IMRE-Physics Faculty, University of Havana, 10400 Havana (Cuba); Arronte, M. [Laser Technology Laboratory, CICATA-IPN, ALTAMIRA, Altamira 89600, TAMPS (Mexico); Batista-Leyva, A.J. [Department of General Physics and Mathematics, InSTEC, 10400 Havana (Cuba); Haugen, O. [Department of Physics, University of Oslo, Blindern, N-0316 Oslo (Norway); Johansen, T.H. [Department of Physics, University of Oslo, Blindern, N-0316 Oslo (Norway); Han, Z. [Applied Superconductivity Research Center, Department of Physics, Tsinghua University, Beijing 100084 (China); Altshuler, E. [Superconductivity Laboratory, Magnetism Laboratory, IMRE-Physics Faculty, University of Havana, 10400 Havana (Cuba)]. E-mail: ea@infomed.sld.cu

    2007-09-15

    The determination of inter- and intra-filament characteristics in superconducting composites such as BSCCO-Ag tapes is of great importance for material evaluation towards applications. Most attempts to separate the two contributions have relied on indirect methods based on magnetic measurements such as SQUID or magneto-optic imaging techniques. Here we show that laser patterning of superconducting BSCCO-Ag tapes constitutes a simple approach to measure local transport properties in a direct way, even able to separate inter- and intra-filament contributions to the overall transport behavior of the sample.

  15. Quantitative analysis of pulmonary emphysema using local binary patterns

    DEFF Research Database (Denmark)

    Sørensen, Lauge Emil Borch Laurs; Shaker, S.B.; de Bruijne, Marleen

    2010-01-01

    We aim at improving quantitative measures of emphysema in computed tomography (CT) images of the lungs. Current standard measures, such as the relative area of emphysema (RA), rely on a single intensity threshold on individual pixels, thus ignoring any interrelations between pixels. Texture...... analysis allows for a much richer representation that also takes the local structure around pixels into account. This paper presents a texture classification-based system for emphysema quantification in CT images. Measures of emphysema severity are obtained by fusing pixel posterior probabilities output...... by a classifier. Local binary patterns (LBP) are used as texture features, and joint LBP and intensity histograms are used for characterizing regions of interest (ROIs). Classification is then performed using a k nearest neighbor classifier with a histogram dissimilarity measure as distance. A 95...

  16. Classification of interstitial lung disease patterns using local DCT features and random forest.

    Science.gov (United States)

    Anthimopoulos, M; Christodoulidis, S; Christe, A; Mougiakakou, S

    2014-01-01

    Over the last decade, a plethora of computer-aided diagnosis (CAD) systems have been proposed aiming to improve the accuracy of the physicians in the diagnosis of interstitial lung diseases (ILD). In this study, we propose a scheme for the classification of HRCT image patches with ILD abnormalities as a basic component towards the quantification of the various ILD patterns in the lung. The feature extraction method relies on local spectral analysis using a DCT-based filter bank. After convolving the image with the filter bank, q-quantiles are computed for describing the distribution of local frequencies that characterize image texture. Then, the gray-level histogram values of the original image are added forming the final feature vector. The classification of the already described patches is done by a random forest (RF) classifier. The experimental results prove the superior performance and efficiency of the proposed approach compared against the state-of-the-art.

  17. Novel similarity measures for face representation based on local binary pattern

    Institute of Scientific and Technical Information of China (English)

    ZHU Shi-hu; FENG Ju-fu

    2009-01-01

    The successful face recognition based on local binary pattern (LBP) relies on the effective extraction of LBP features and the inferring of similarity between the extracted features. In this paper, we focus on the latter and propose two novel similarity measures for the local matching methods and the holistic matching methods respectively. One is Earth Mover's Distance with Hamming and Lp ground distance (EMD-HammingLp),which is a cross-bin dissimilarity measure for LBP histograms. The other is IMage Hamming Distance (IMHD),which is a dissimilarity measure for the whole LBP images. Experiments on FERET database show that the proposed two similarity measures outperform the state-of-the-art Chi-square similarity measure for extraction of LBP features.

  18. Encoding of sound localization cues by an identified auditory interneuron: effects of stimulus temporal pattern.

    Science.gov (United States)

    Samson, Annie-Hélène; Pollack, Gerald S

    2002-11-01

    An important cue for sound localization is binaural comparison of stimulus intensity. Two features of neuronal responses, response strength, i.e., spike count and/or rate, and response latency, vary with stimulus intensity, and binaural comparison of either or both might underlie localization. Previous studies at the receptor-neuron level showed that these response features are affected by the stimulus temporal pattern. When sounds are repeated rapidly, as occurs in many natural sounds, response strength decreases and latency increases, resulting in altered coding of localization cues. In this study we analyze binaural cues for sound localization at the level of an identified pair of interneurons (the left and right AN2) in the cricket auditory system, with emphasis on the effects of stimulus temporal pattern on binaural response differences. AN2 spike count decreases with rapidly repeated stimulation and latency increases. Both effects depend on stimulus intensity. Because of the difference in intensity at the two ears, binaural differences in spike count and latency change as stimulation continues. The binaural difference in spike count decreases, whereas the difference in latency increases. The proportional changes in response strength and in latency are greater at the interneuron level than at the receptor level, suggesting that factors in addition to decrement of receptor responses are involved. Intracellular recordings reveal that a slowly building, long-lasting hyperpolarization is established in AN2. At the same time, the level of depolarization reached during the excitatory postsynaptic potential (EPSP) resulting from each sound stimulus decreases. Neither these effects on membrane potential nor the changes in spiking response are accounted for by contralateral inhibition. Based on comparison of our results with earlier behavioral experiments, it is unlikely that crickets use the binaural difference in latency of AN2 responses as the main cue for

  19. Patterns of genetic diversity of local pig populations in the State of Pernambuco, Brazil

    Directory of Open Access Journals (Sweden)

    Elizabete Cristina da Silva

    2011-08-01

    Full Text Available This study estimated the genetic diversity and structure of 12 genetic groups (GG of locally adapted and specialized pigs in the state of Pernambuco using 22 microsatellite markers. Nine locally adapted breeds (Baé, Caruncho, Canastra, Canastrão, Mamelado, Moura, Nilo, Piau and UDB (Undefined Breed and 3 specialized breeds (Duroc, Landrace and Large White, totaling 190 animals, were analyzed. The Analysis of Molecular Variance (AMOVA showed that 3.2% of the total variation was due to differences between genetic groups, and 3.6% to differences between local and commercial pigs. One hundred and ninety eight alleles were identified and apart from the Large White breed, all GG presented Hardy-Weinberg Equilibrium deviations for some loci. The total and effective allele means were lower for Duroc (3.65 and 3.01 and higher for UDB (8.89 and 4.53 and Canastra (8.61 and 4.58. Using Nei's standard genetic distance and the UPGMA method, it was possible to observe that the Landrace breed was grouped with the local genetic groups Canastra, Moura, Canastrão, Baé and Caruncho. Due to the complex admixture pattern, the genetic variability of the 12 genetic groups can be analyzed by distributing the individuals into two populations as demonstrated by a Bayesian analysis, corroborating the results from AMOVA, which revealed a low level of genetic differentiation between the inferred populations.

  20. Childhood Victimization and Crime Victimization

    Science.gov (United States)

    McIntyre, Jared Kean; Widom, Cathy Spatz

    2011-01-01

    The purpose of this study is to determine whether abused and neglected children are at increased risk for subsequent crime victimization. We ask four basic questions: (a) Does a history of child abuse/neglect increase one's risk of physical, sexual, and property crime victimization? (b) Do lifestyle characteristics (prostitution, running away,…

  1. Hate crimes and normative regulation

    Directory of Open Access Journals (Sweden)

    Kovačević Milica

    2011-01-01

    Full Text Available This paper is primarily devoted to issues related to the normative regulation of hate crimes, with special reference to the regulations of the Republic of Serbia, which are indirectly related to this matter. This kind of crimes are characterized by prejudices that perpetrators have towards injured parties, as members of certain, mostly, minority groups, due to which many hate crimes could be also called crimes of prejudice. In comparative law there are two different basic directions when it comes to regulating hate crimes: separation of hate crimes in a separate category on the one hand, and punishment of perpetrators of criminal acts with the detriment of minority groups through the usual charges of a given criminal justice system, on the other. The author finds that, regardless of the formal response forms, real life suggests that hate crimes can be essentially suppressed only by promoting values such as equality, respect for diversity and tolerance, and by continuous education of public about the danger of hate crimes.

  2. CyberCrime and Punishment.

    Science.gov (United States)

    Drucker, Susan J.; Gumpert, Gary

    2000-01-01

    Surveys ways in which criminal laws are finding their way into cyberspace, the implications of such actions for communicative rights and liabilities, and the media differentials of crime and punishment. Examines crime committed using email and the Internet; computer mediated felonies, misdemeanors, and violations committed in cyberspace; forgery;…

  3. Religion in Scandinavian Crime Fiction

    DEFF Research Database (Denmark)

    Hansen, Kim Toft

    2011-01-01

    Firstly, I develop a theoretical framework for the discussion of religion i Scandinavian crime fiction where I consider theories of transgression and religion. Secondly, I run through five relatively popular examples of Scandinavian crime fiction to show how this genre trend works. Lastly, I...

  4. Crime, accidents and social control

    NARCIS (Netherlands)

    Junger, Marianne; Terlouw, Gert-Jan; van der Heijden, Peter G.M.

    1995-01-01

    This paper addresses to questions. (1) Is there a demonstrable relation between accidents and crime, does this relation hold for each type of crime and each means of transport, and does it subsist after controlling for age and gender? (2) Can social control theory explain involvements in both

  5. Childhood Victimization and Crime Victimization

    Science.gov (United States)

    McIntyre, Jared Kean; Widom, Cathy Spatz

    2011-01-01

    The purpose of this study is to determine whether abused and neglected children are at increased risk for subsequent crime victimization. We ask four basic questions: (a) Does a history of child abuse/neglect increase one's risk of physical, sexual, and property crime victimization? (b) Do lifestyle characteristics (prostitution, running away,…

  6. Community and Campus Crime: A Geospatial Examination of the Clery Act

    Science.gov (United States)

    Nobles, Matt R.; Fox, Kathleen A.; Khey, David N.; Lizotte, Alan J.

    2013-01-01

    Despite the provisions of the Clery Act, which requires institutional reporting of crime on college campuses, patterns of campus crime have received surprisingly little research attention to date. Furthermore, few studies have described the extent to which college students engage in criminal behaviors. This study examines the criminality of…

  7. Postsecularism in Scandinavian Crime Fiction

    DEFF Research Database (Denmark)

    Hansen, Kim Toft

    2014-01-01

    This article considers the postsecular turn in Scandinavian crime fiction. Postsecularism describes a renewed openness towards questions of spirituality, while maintaining the practice of critical scrutiny. Since 2000, we have seen an intensive increase in the number of titles treating religion and....../or spirituality in a way which differs from the genre’s usual approach. Firstly, I will frame the traditional attitude towards religion in crime fiction by Scandinavian welfare modernity, outlining the conspicuous absence of religion in the genre. Secondly, I propose a typology of the treatment of religion...... in crime fiction. My examples are all taken from the vast corpus of contemporary Scandinavian crime fiction, but it would be rather unproblematic to stretch the scope of the theory to an analysis of western crime fiction in general. Within this typology, I will introduce the phenomenon of a religious...

  8. The power of political voice : women's political representation and crime in India

    OpenAIRE

    Iyer, Lakshmi; Mani, Anandi; Mishra, Prachi; Topalova, Petia

    2011-01-01

    Using state-level variation in the timing of political reforms, we find that an\\ud increase in female representation in local government induces a large and\\ud significant rise in documented crimes against women in India. Our evidence\\ud suggests that this increase is good news, as it is driven primarily by greater\\ud reporting rather than greater incidence of such crimes. In contrast, we find no\\ud increase in crimes against men or gender-neutral crimes. We also examine the\\ud effectiveness ...

  9. A multi-modal face recognition method using complete local derivative patterns and depth maps.

    Science.gov (United States)

    Yin, Shouyi; Dai, Xu; Ouyang, Peng; Liu, Leibo; Wei, Shaojun

    2014-10-20

    In this paper, we propose a multi-modal 2D + 3D face recognition method for a smart city application based on a Wireless Sensor Network (WSN) and various kinds of sensors. Depth maps are exploited for the 3D face representation. As for feature extraction, we propose a new feature called Complete Local Derivative Pattern (CLDP). It adopts the idea of layering and has four layers. In the whole system, we apply CLDP separately on Gabor features extracted from a 2D image and depth map. Then, we obtain two features: CLDP-Gabor and CLDP-Depth. The two features weighted by the corresponding coefficients are combined together in the decision level to compute the total classification distance. At last, the probe face is assigned the identity with the smallest classification distance. Extensive experiments are conducted on three different databases. The results demonstrate the robustness and superiority of the new approach. The experimental results also prove that the proposed multi-modal 2D + 3D method is superior to other multi-modal ones and CLDP performs better than other Local Binary Pattern (LBP) based features.

  10. Local Temporal Correlation Common Spatial Patterns for Single Trial EEG Classification during Motor Imagery

    Directory of Open Access Journals (Sweden)

    Rui Zhang

    2013-01-01

    Full Text Available Common spatial pattern (CSP is one of the most popular and effective feature extraction methods for motor imagery-based brain-computer interface (BCI, but the inherent drawback of CSP is that the estimation of the covariance matrices is sensitive to noise. In this work, local temporal correlation (LTC information was introduced to further improve the covariance matrices estimation (LTCCSP. Compared to the Euclidean distance used in a previous CSP variant named local temporal CSP (LTCSP, the correlation may be a more reasonable metric to measure the similarity of activated spatial patterns existing in motor imagery period. Numerical comparisons among CSP, LTCSP, and LTCCSP were quantitatively conducted on the simulated datasets by adding outliers to Dataset IVa of BCI Competition III and Dataset IIa of BCI Competition IV, respectively. Results showed that LTCCSP achieves the highest average classification accuracies in all the outliers occurrence frequencies. The application of the three methods to the EEG dataset recorded in our laboratory also demonstrated that LTCCSP achieves the highest average accuracy. The above results consistently indicate that LTCCSP would be a promising method for practical motor imagery BCI application.

  11. [Objective assessment of facial paralysis using local binary pattern in infrared thermography].

    Science.gov (United States)

    Liu, Xulong; Hong, Wenxue; Zhang, Tao; Wu, Zhenying

    2013-02-01

    Facial paralysis is a frequently-occurring disease, which causes the loss of the voluntary muscles on one side of the face due to the damages the facial nerve and results in an inability to close the eye and leads to dropping of the angle of the mouth. There have been few objective methods to quantitatively diagnose it and assess this disease for clinically treating the patients so far. The skin temperature distribution of a healthy human body exhibits a contralateral symmetry. Facial paralysis usually causes an alteration of the temperature distribution of body with the disease. This paper presents the use of the histogram distance of bilateral local binary pattern (LBP) in the facial infrared thermography to measure the asymmetry degree of facial temperature distribution for objective assessing the severity of facial paralysis. Using this new method, we performed a controlled trial to assess the facial nerve function of the healthy subjects and the patients with Bell's palsy respectively. The results showed that the mean sensitivity and specificity of this method are 0.86 and 0.89 respectively. The correlation coefficient between the asymmetry degree of facial temperature distribution and the severity of facial paralysis is an average of 0.657. Therefore, the histogram distance of local binary pattern in the facial infrared thermography is an efficient clinical indicator with respect to the diagnosis and assessment of facial paralysis.

  12. A Multi-Modal Face Recognition Method Using Complete Local Derivative Patterns and Depth Maps

    Directory of Open Access Journals (Sweden)

    Shouyi Yin

    2014-10-01

    Full Text Available In this paper, we propose a multi-modal 2D + 3D face recognition method for a smart city application based on a Wireless Sensor Network (WSN and various kinds of sensors. Depth maps are exploited for the 3D face representation. As for feature extraction, we propose a new feature called Complete Local Derivative Pattern (CLDP. It adopts the idea of layering and has four layers. In the whole system, we apply CLDP separately on Gabor features extracted from a 2D image and depth map. Then, we obtain two features: CLDP-Gabor and CLDP-Depth. The two features weighted by the corresponding coefficients are combined together in the decision level to compute the total classification distance. At last, the probe face is assigned the identity with the smallest classification distance. Extensive experiments are conducted on three different databases. The results demonstrate the robustness and superiority of the new approach. The experimental results also prove that the proposed multi-modal 2D + 3D method is superior to other multi-modal ones and CLDP performs better than other Local Binary Pattern (LBP based features.

  13. Passive Forensics for Region Duplication Image Forgery Based on Harris Feature Points and Local Binary Patterns

    Directory of Open Access Journals (Sweden)

    Jie Zhao

    2013-01-01

    Full Text Available Nowadays the demand for identifying the authenticity of an image is much increased since advanced image editing software packages are widely used. Region duplication forgery is one of the most common and immediate tampering attacks which are frequently used. Several methods to expose this forgery have been developed to detect and locate the tampered region, while most methods do fail when the duplicated region undergoes rotation or flipping before being pasted. In this paper, an efficient method based on Harris feature points and local binary patterns is proposed. First, the image is filtered with a pixelwise adaptive Wiener method, and then dense Harris feature points are employed in order to obtain a sufficient number of feature points with approximately uniform distribution. Feature vectors for a circle patch around each feature point are extracted using local binary pattern operators, and the similar Harris points are matched based on their representation feature vectors using the BBF algorithm. Finally, RANSAC algorithm is employed to eliminate the possible erroneous matches. Experiment results demonstrate that the proposed method can effectively detect region duplication forgery, even when an image was distorted by rotation, flipping, blurring, AWGN, JPEG compression, and their mixed operations, especially resistant to the forgery with the flat area of little visual structures.

  14. Does heightened fear of crime lead to poorer mental health in new suburbs, or vice versa?

    Science.gov (United States)

    Foster, Sarah; Hooper, Paula; Knuiman, Matthew; Giles-Corti, Billie

    2016-11-01

    Fear of crime is implicated as a risk factor for poorer mental health, yet few studies have explored whether there is a causal relationship between fear of crime and health, or tested the direction of the relationship. Does, for example, heightened fear of crime lead to poorer mental health, or could poorer mental health exacerbate fear of crime? RESIDE participants in Perth, Australia, completed a questionnaire three years after moving to their neighbourhood (2007-2008, n = 1230), and again four years later (2011-2012, n = 531). The impact of fear of crime on psychological distress (Kessler-6) was examined in SAS using the Proc Mixed procedure (marginal repeated measures model with unrestricted variance pattern). Models controlled for demographics and time, and progressively adjusted for avoidance behaviours (i.e., walking, community participation, social cohesion). This approach was repeated with psychological distress as the independent variable and fear of crime as the outcome. For each increase in one standard deviation (SD) in fear of crime, psychological distress increased by 0.680 (p = 0.0001), however in the reversed models, for each one SD increase in psychological distress, fear of crime increased by 0.152 (p = 0.0001). To help explain these results, temporal order models examined whether baseline values predicted follow-up values. There was a significant association between psychological distress (at baseline) and fear of crime (at follow-up), but no association between fear of crime (at baseline) and psychological distress (at follow-up). The findings suggest a bi-directional relationship exists between fear of crime and mental health, however it appears that higher psychological distress over time leads to higher fear of crime, rather than the reverse. Furthermore, the pathway connecting fear of crime and mental health appears to be direct, rather than via constrained social and physical activities.

  15. Discovering local patterns of co - evolution: computational aspects and biological examples

    Directory of Open Access Journals (Sweden)

    Tuller Tamir

    2010-01-01

    Full Text Available Abstract Background Co-evolution is the process in which two (or more sets of orthologs exhibit a similar or correlative pattern of evolution. Co-evolution is a powerful way to learn about the functional interdependencies between sets of genes and cellular functions and to predict physical interactions. More generally, it can be used for answering fundamental questions about the evolution of biological systems. Orthologs that exhibit a strong signal of co-evolution in a certain part of the evolutionary tree may show a mild signal of co-evolution in other branches of the tree. The major reasons for this phenomenon are noise in the biological input, genes that gain or lose functions, and the fact that some measures of co-evolution relate to rare events such as positive selection. Previous publications in the field dealt with the problem of finding sets of genes that co-evolved along an entire underlying phylogenetic tree, without considering the fact that often co-evolution is local. Results In this work, we describe a new set of biological problems that are related to finding patterns of local co-evolution. We discuss their computational complexity and design algorithms for solving them. These algorithms outperform other bi-clustering methods as they are designed specifically for solving the set of problems mentioned above. We use our approach to trace the co-evolution of fungal, eukaryotic, and mammalian genes at high resolution across the different parts of the corresponding phylogenetic trees. Specifically, we discover regions in the fungi tree that are enriched with positive evolution. We show that metabolic genes exhibit a remarkable level of co-evolution and different patterns of co-evolution in various biological datasets. In addition, we find that protein complexes that are related to gene expression exhibit non-homogenous levels of co-evolution across different parts of the fungi evolutionary line. In the case of mammalian evolution

  16. Local binary pattern texture-based classification of solid masses in ultrasound breast images

    Science.gov (United States)

    Matsumoto, Monica M. S.; Sehgal, Chandra M.; Udupa, Jayaram K.

    2012-03-01

    Breast cancer is one of the leading causes of cancer mortality among women. Ultrasound examination can be used to assess breast masses, complementarily to mammography. Ultrasound images reveal tissue information in its echoic patterns. Therefore, pattern recognition techniques can facilitate classification of lesions and thereby reduce the number of unnecessary biopsies. Our hypothesis was that image texture features on the boundary of a lesion and its vicinity can be used to classify masses. We have used intensity-independent and rotation-invariant texture features, known as Local Binary Patterns (LBP). The classifier selected was K-nearest neighbors. Our breast ultrasound image database consisted of 100 patient images (50 benign and 50 malignant cases). The determination of whether the mass was benign or malignant was done through biopsy and pathology assessment. The training set consisted of sixty images, randomly chosen from the database of 100 patients. The testing set consisted of forty images to be classified. The results with a multi-fold cross validation of 100 iterations produced a robust evaluation. The highest performance was observed for feature LBP with 24 symmetrically distributed neighbors over a circle of radius 3 (LBP24,3) with an accuracy rate of 81.0%. We also investigated an approach with a score of malignancy assigned to the images in the test set. This approach provided an ROC curve with Az of 0.803. The analysis of texture features over the boundary of solid masses showed promise for malignancy classification in ultrasound breast images.

  17. Impact of urbanization patterns on the local climate of a tropical city, Singapore: An ensemble study

    Science.gov (United States)

    Li, Xian-Xiang; Koh, Tieh-Yong; Panda, Jagabandhu; Norford, Leslie K.

    2016-05-01

    The effect of urbanization and urbanization pattern on the thermal environment and local rainfall is investigated in the tropical coastal city, Singapore. The Weather Research and Forecasting (WRF) model is employed with 5 one-way nested domains and the highest horizontal resolution is 300 m. The urban effect is taken into account by a single-layer urban canopy model. Several scenarios with idealized urbanization patterns are designed and simulated for an ensemble of 28 members. In the asymmetric urbanization scenarios, in which either the southern or northern part of Singapore is urbanized while the other part is forest, the magnitude of urban heat island (UHI) intensity is higher than that in the symmetric urbanization scenario, in which the urban and forest land use is homogeneously distributed in Singapore. The anthropogenic heat (AH) associated with the urban areas will exacerbate the UHI intensity. Most of the rainfall in the examined cases occurs from late morning to afternoon when the sea breeze blows northeastward. The results suggest that sea breezes have stronger influence on the rainfall than the urbanization pattern since the downwind part always gets more rainfall than the upwind part. The urbanization and associated AH can have two opposite effects on the rainfall amount: increasing rainfall through increasing buoyancy by AH and decreasing rainfall through reducing evaporation by converting greenery to impervious surfaces. The ultimate effect is dependent on the relative strength of these two influences.

  18. Understanding the Link between Social Organization and Crime in Rural Communities.

    Science.gov (United States)

    Chilenski, Sarah M; Syvertsen, Amy K; Greenberg, Mark T

    Rural communities make up much of America's heartland, yet we know little about their social organization, and how elements of their social organization relate to crime rates. The current study sought to remedy this gap by examining the associations between two measures of social organization - collective efficacy and social trust - with a number of structural community characteristics, local crime rates, and perceptions of safety in a sample of 27 rural and small town communities in two states. Measures of collective efficacy, social trust, and perceived safety, were gathered from key community members in 2006; other measures were drawn from the 2000 Census and FBI Uniform Crime Reporting system. A series of competing hypotheses were tested to examine the relative importance of social trust and collective efficacy in predicting local crime rates. Results do not support the full generalization of the social disorganization model. Correlational analyses showed that neither collective efficacy nor social trust had a direct association with community crime, nor did they mediate the associations between community structural characteristics and crime. However, perceived safety mediated the association between community crime and both measures of social organization. Analyses suggest that social trust may be more important than collective efficacy when understanding the effect of crime on a community's culture in rural areas. Understanding these associations in rural settings can aid decision makers in shaping policies to reduce crime and juvenile delinquency.

  19. Crime As Entertainment or Entertainment as A Crime?

    Directory of Open Access Journals (Sweden)

    Mia Angeline

    2011-10-01

    Full Text Available Article presents one part of pop culture is crime portrayed as entertainment in television shows. Television has the means of information and entertainment, resulting in the shift of crime shows, initially crime was portrayed in the news but due to the high popularity, it becomes part of the entertainment as well. In terms of information, the most famous of crime drama show is Crime Scene Investigation (CSI, and this show gave effect known as the CSI effect, which is people have more appreciation to scientific evidences and DNA testing in trials. On the other hand, with so many shows involving crime resulting in cultivation impact, which is accumulation and the formation of perception of reality. People who are more exposed to this crime show will form the same perception as the one depicted by television and resulted to changes in their behavior. Several proposals to reduce this negative effects are audience learning, the use of rating system and electronic key in television set.  

  20. 清代地方法律实践中的现代逻辑--围绕“犯奸”展开%The Modern Logic in Qing's Local Justice Surrounding Sex Crime

    Institute of Scientific and Technical Information of China (English)

    李斯特

    2013-01-01

    长期以来,伦理司法被看做中华法系的一大特征。但在清代关于犯奸行为的地方法律实践中,表面上由妇女贞节观的礼教思想主宰着的伦理司法,内里却贯穿着与现代法律实践和理论相一致的逻辑。这一内在的逻辑是由清代法律实践在处理犯奸案件中面临的司法资源不足的条件决定的。而且,正是这一约束条件还决定了这种内在一致性要呈现为与现代法律话语迥异的外在形态,因为在司法资源不足的前提下,压抑法律的专业性程度,利用道德教化手段反而是更有效率的。%The ethical justice has long been seen as one of the characters of Chinese legal system.When we look into Qing's local justice about sex crimes,how-ever,we also find the same logic of modern justice in the ethical justice seemingly dominated by the Chinese Li's conception of women chastity.This internal practical logic is determined by the restraint of scarce judicial resources that Qing's local jus-tice had to face.Furthermore, the same restraint determined that this internal logic, which is as the same of modern justice, had to appear as the external different dis-course, which we call Li, because given the scarcity of judicial resources moral civi-lization is more sufficient than legal professionalization.

  1. LGBTI Variations in Crime Reporting

    Directory of Open Access Journals (Sweden)

    Toby Miles-Johnson

    2013-05-01

    Full Text Available Research shows that people vary in their willingness to report crime to police depending on the type of crime experienced, their gender, age, and their race or ethnicity. Whether or not lesbian, gay, bisexual, transgender, and intersex (LGBTI and heterosexual people vary in their willingness to report crime to the police is not well understood in the extant literature. In this article, I examine variations in LGBTI respondents’ attitudes, subjective norms, and perceived behavioral control on their intentions to report crimes to the police. Drawing on a survey of LGBTI individuals sampled from a Gay Pride community event and online LGBTI community forums (N = 329, I use quantitative statistical methods to examine whether LGBTI people’s beliefs in police homophobia are also directly associated with the behavioral intention to report crime. Overall, the results indicate that LGBTI and heterosexual people differ significantly in their intention to report crime to the police, and that a belief in police homophobia strongly influences LGBTI people’s intention to underreport crime to the police.

  2. Organized crime impact study highlights

    Energy Technology Data Exchange (ETDEWEB)

    Porteous, S.D.

    1998-10-01

    A study was conducted to address the issue of how organized crime impacts on Canadians and their communities both socially and economically. As far as environmental crime is concerned, three main areas of concern have been identified: (1) illicit trade in ozone depleting substances, (2) illicit hazardous waste treatment, and (3) disposal of illicit trade in endangered species. To gauge the magnitude of organized crime activity, the market value of worldwide illegal trafficking in illicit drugs was estimated to be as high as $100 billion worldwide (between $1.4 to 4 billion in Canada). It is suspected that Canada supplies a substantial portion of the U.S. black market in chlorofluorocarbons with most of the rest being supplied from Mexico. Another area of concern involves the disposal of hazardous wastes. Canada produces approximately 5.9 million tonnes of hazardous waste annually. Of these, 3.2 million tonnes are sent to off-site disposal facilities for specialized treatment and recycling. The treatment of hazardous waste is a very profitable business, hence vulnerable to fraudulent practices engaged in by organized crime groups. Environmental implications of this and other environmental crimes, as well as their economic, commercial, health and safety impact were examined. Other areas of organized crime activity in Canada (drugs, economic crimes, migrant trafficking, counterfeit products, motor vehicle theft, money laundering) were also part of the study.

  3. On the Prevention of Juvenile Crime

    Science.gov (United States)

    Lelekov, V. A.; Kosheleva, E. V.

    2008-01-01

    Crimes committed by juveniles are among the most urgent social problems. Juvenile crime is as prevalent as crime itself is, and it has not been solved completely in any society and cannot be solved through law enforcement measures alone. In this article, the authors discuss the dynamics and structure of juvenile crime in Russia and present data…

  4. The dynamics of poverty and crime

    OpenAIRE

    Haiyun Zhao; Zhilan Feng; Carlos Castillo-Chavez

    2014-01-01

    Poverty and crime are two maladies that plague metropolitan areas. The economic theory of crime demonstrates a direct correlation between poverty and crime. The model considered in this study seeks to examine the dynamics of the poverty-crime system through stability analysis of a system of ordinary differential equations in order to identify cost-effective strategies to combat crime in metropolises.

  5. 未成年罪犯共患注意缺陷多动障碍的父母教养方式调查%Relationship Between Juvenile Crime and Delinquency With Attention Deficit Hyperactivity Disorder and Parental Rearing Patterns

    Institute of Scientific and Technical Information of China (English)

    蒋苏华; 邹小兵; 谭伟棠; 麦智广; 张虹桥; 黄柳开

    2012-01-01

    Objective To explore differences of parental rearing patterns between juvenile crime and delinquency with attention deficit hyperactivity disorder (ADHD) and common ADHD adolescents.Methods A total of 41 cases of juvenile crime and delinquency with ADHD,male,Han nationality,were selected randomly from the detention center of Foshan during July 1,2006 to July 1,2007,and they were included into research group.In the same period,a total of 38 adolescents,male and Han nationality,which were diagnosed as ADHD for the first time by neural psychiatrist at Foshan First People' s Hospital were administered as control group.There had no significant differences on ages and other diseases between two groups (P>0.05).The study protocol was approved by the Ethical Review Board of Investigation in Human Being of Foshan First People's Hospital.Informed consent was obtained from each participate.ADHD were diagnosed by Vanderbilt ADHD parent Rating Scale (VADPRS).Parental rearing patterns between two groups were investigated by parental rearing patterns scale (EMBU).Results There had significant differences between two groups' father and mother,including warmth of feeling & understanding,punishment,refusal and repudiation,fulsome interference,fulsome protection,partiality (P<0.05).Compared with the rearing style of father and mother of research group,they had statistical differences (P<0.001) on warmth of feeling & understanding,punishment,refusal and repudiation,fulsome interference,fulsome protection,but parents in control group only had the significant differences on punishment and fulsome interference (P<0.001).But there has no significant difference (P> 0.05) on partiality between two groups.It showed that there was more serious divergence about the consistency of parental rearing style in research group.Compared education level of patients between two groups,there were statistics difference (P<0.05) between higher education level and lower education level

  6. Joint Modeling of Multiple Crimes: A Bayesian Spatial Approach

    Directory of Open Access Journals (Sweden)

    Hongqiang Liu

    2017-01-01

    Full Text Available A multivariate Bayesian spatial modeling approach was used to jointly model the counts of two types of crime, i.e., burglary and non-motor vehicle theft, and explore the geographic pattern of crime risks and relevant risk factors. In contrast to the univariate model, which assumes independence across outcomes, the multivariate approach takes into account potential correlations between crimes. Six independent variables are included in the model as potential risk factors. In order to fully present this method, both the multivariate model and its univariate counterpart are examined. We fitted the two models to the data and assessed them using the deviance information criterion. A comparison of the results from the two models indicates that the multivariate model was superior to the univariate model. Our results show that population density and bar density are clearly associated with both burglary and non-motor vehicle theft risks and indicate a close relationship between these two types of crime. The posterior means and 2.5% percentile of type-specific crime risks estimated by the multivariate model were mapped to uncover the geographic patterns. The implications, limitations and future work of the study are discussed in the concluding section.

  7. Borderless Crime - Computer Fraud

    Directory of Open Access Journals (Sweden)

    Raluca Georgiana POPA

    2012-05-01

    Full Text Available Starting from the consideration that fighting cybercrime is a continuous process, the more the types of old crimes are committed today through modern means (computer fraud at distances of thousands of kilometers, international cooperation is vital to combat this phenomenon.In EU countries, still under financial crisis "the phrase", cybercrime has found a "positive environment" taking advantage of poor security management systems of these countries.Factors that led criminal groups to switch "their activities" are related to so-called advantages of the "gains" obtained with relatively low risk.In Romania, more than any of the EU member states criminal activities set as target financial institutions or foreign citizens, weakening confidence in financial systems and the security of communication networks in our country, people's confidence in electronic payment instruments and those available on the Internet.

  8. Secrecy, Betrayal and Crime

    Directory of Open Access Journals (Sweden)

    Dina Siegel

    2011-10-01

    Full Text Available In the past few years numerous secret transgressions and crimes have been revealed in the media. Whistleblowers reveal clandestine agreements between managers and directors of large companies; criminals (pentiti make deals with criminal justice officials; cyclists and athletes make public confessions about drug use; victims of sexual abuse come forward with their testimonies.  In this paper, I try to analyze why attitudes about secrecy have changed in the last couple of decades and how and why so many secrets have been revealed, either by individuals who are complicit (whistleblowers or cyclists, by victims (of child abuse by the Catholic clergy and by outsiders (WikiLeaks activists. In addition, some suggestions on the methods of criminological research in closed and isolated groups which consider such information leaks a form of betrayal are provided.

  9. Avant le crime politique

    OpenAIRE

    Fell, Claude; Rutés, Sébastien

    2015-01-01

    La créativité récente dans le sous-genre policier au Mexique, que l’on appelle « néo-policier » favorise la mise en valeur des romans et nouvelles à caractère policier qui n’avaient pas dans ce pays le développement éditorial pris aux Etats-Unis. Le crime et l’enquête policière ont des composantes de fiction qui ne s’inscrivent pas dans le profil conventionnel du roman de détective. Des œuvres de plusieurs écrivains marquent cette évolution vers le néo-policier.Dans Ensayo de un crimen (1986)...

  10. Avant le crime politique

    OpenAIRE

    2015-01-01

    La créativité récente dans le sous-genre policier au Mexique, que l’on appelle « néo-policier » favorise la mise en valeur des romans et nouvelles à caractère policier qui n’avaient pas dans ce pays le développement éditorial pris aux Etats-Unis. Le crime et l’enquête policière ont des composantes de fiction qui ne s’inscrivent pas dans le profil conventionnel du roman de détective. Des œuvres de plusieurs écrivains marquent cette évolution vers le néo-policier.Dans Ensayo de un crimen (1986)...

  11. Relationship between burgers vectors of dislocations and plastic strain localization patterns in compression-strained alkali halide crystals

    Science.gov (United States)

    Barannikova, S. A.; Nadezhkin, M. V.; Zuev, L. B.

    2011-08-01

    Plastic strain localization patterns in compression-strained alkali halide (NaCl, KCl, and LiF) crystals have been studied using a double-exposure speckle photography technique. The main parameters of strain localization autowaves at the linear stages of deformation hardening in alkali halide crystals have been determined. A quantitative relationship between the macroscopic parameters of plastic flow localization and microscopic parameters of strained alkali halide crystals has been established.

  12. White-Collar Crimes and Financial Corruptions

    Directory of Open Access Journals (Sweden)

    Fatih ŞENTÜRK

    2013-12-01

    Full Text Available Crime, defined as act which is contrary to the law, creates negative influence in the society both economically and spiritually. There are various factors like professional experience as well as biological, psychological and sociological ones that make individuals turn to crime. Edwin Sutherland claim that life experiences and some facts learned from the environment account for occupational crimes in his study on the theory of crime in 1939. White-collar crime, which is perhaps the most important of types of crime in terms of havoc and committed by the superior contrary to common belief, has much more influence than conventional crime. This crime, which inflict significant financial loses and psychological collapse on states, communities, businesses and people, are committed by well-respected professionals in their business. In this study, white collar crimes are examined with conceptual view and detailed. Besides, this study explain this type of crime is so forceful, by giving remarkable examples on economic losses.

  13. Analysis of stationary displacement patterns in rotating machinery subject to local harmonic excitation

    Science.gov (United States)

    Österlind, Tomas; Kari, Leif; Nicolescu, Cornel Mihai

    2017-02-01

    Rotor vibration and stationary displacement patterns observed in rotating machineries subject to local harmonic excitation are analysed for improved understanding and dynamic characterization. The analysis stresses the importance of coordinate transformation between rotating and stationary frame of reference for accurate results and estimation of dynamic properties. A generic method which can be used for various rotor applications such as machine tool spindle and turbo machinery vibration is presented. The phenomenon shares similarities with stationary waves in rotating disks though focuses on vibration in shafts. The paper further proposes a graphical tool, the displacement map, which can be used for selection of stable rotational speed for rotating machinery. The results are validated through simulation of dynamic response of a milling cutter, which is a typical example of a variable speed rotor operating under different load conditions.

  14. Strain rate measurement by Electronic Speckle Pattern Interferometry: A new look at the strain localization onset

    Energy Technology Data Exchange (ETDEWEB)

    Guelorget, Bruno [Universite de Technologie de Troyes (UTT), Laboratoire des Systemes Mecaniques et d' ingenierie Simultanee (LASMIS, CNRS FRE 2719), 12 rue Marie Curie, B.P. 2060, 10010 Troyes Cedex (France)]. E-mail: bruno.guelorget@utt.fr; Francois, Manuel [Universite de Technologie de Troyes (UTT), Laboratoire des Systemes Mecaniques et d' ingenierie Simultanee (LASMIS, CNRS FRE 2719), 12 rue Marie Curie, B.P. 2060, 10010 Troyes Cedex (France); Vial-Edwards, Cristian [Departemento de Ingenieria Mecanica y Metalurgica, Pontificia Universidad Catolica de Chile, Vicuna Mackenna 4860, 6904411 Santiago (Chile); Montay, Guillaume [Universite de Technologie de Troyes (UTT), Laboratoire des Systemes Mecaniques et d' ingenierie Simultanee (LASMIS, CNRS FRE 2719), 12 rue Marie Curie, B.P. 2060, 10010 Troyes Cedex (France); Daniel, Laurent [Universite de Technologie de Troyes (UTT), Laboratoire des Systemes Mecaniques et d' ingenierie Simultanee (LASMIS, CNRS FRE 2719), 12 rue Marie Curie, B.P. 2060, 10010 Troyes Cedex (France); Lu, Jian [Universite de Technologie de Troyes (UTT), Laboratoire des Systemes Mecaniques et d' ingenierie Simultanee (LASMIS, CNRS FRE 2719), 12 rue Marie Curie, B.P. 2060, 10010 Troyes Cedex (France)

    2006-01-15

    In-plane Electronic Speckle Pattern Interferometry has been successfully used during tensile testing of semi-hard copper sheets in order to measure the strain rate. On one hand, heterogeneity in strain rate field has been found before the maximum of the tensile force ({epsilon} {sup t} {approx_equal} 19.4 and 25.4%, respectively). Thus, a localization phenomenon occurs before the classic Considere's criterion (dF = 0) for the diffuse neck initiation. On the other hand, strain rate measurement before fracture shows the moment where one of the two slip band systems becomes predominant, then strain concentrates in a small area, the shear band. Uncertainty evaluation has been carried out, which shows a very good accuracy of the total strain and the strain rate measurements.

  15. Vehicle detection algorithm based on codebook and local binary patterns algorithms

    Institute of Scientific and Technical Information of China (English)

    许雪梅; 周立超; 墨芹; 郭巧云

    2015-01-01

    Detecting the moving vehicles in jittering traffic scenes is a very difficult problem because of the complex environment. Only by the color features of the pixel or only by the texture features of image cannot establish a suitable background model for the moving vehicles. In order to solve this problem, the Gaussian pyramid layered algorithm is proposed, combining with the advantages of the Codebook algorithm and the Local binary patterns (LBP) algorithm. Firstly, the image pyramid is established to eliminate the noises generated by the camera shake. Then, codebook model and LBP model are constructed on the low-resolution level and the high-resolution level of Gaussian pyramid, respectively. At last, the final test results are obtained through a set of operations according to the spatial relations of pixels. The experimental results show that this algorithm can not only eliminate the noises effectively, but also save the calculating time with high detection sensitivity and high detection accuracy.

  16. Content based image retrieval using local binary pattern operator and data mining techniques.

    Science.gov (United States)

    Vatamanu, Oana Astrid; Frandeş, Mirela; Lungeanu, Diana; Mihalaş, Gheorghe-Ioan

    2015-01-01

    Content based image retrieval (CBIR) concerns the retrieval of similar images from image databases, using feature vectors extracted from images. These feature vectors globally define the visual content present in an image, defined by e.g., texture, colour, shape, and spatial relations between vectors. Herein, we propose the definition of feature vectors using the Local Binary Pattern (LBP) operator. A study was performed in order to determine the optimum LBP variant for the general definition of image feature vectors. The chosen LBP variant is then subsequently used to build an ultrasound image database, and a database with images obtained from Wireless Capsule Endoscopy. The image indexing process is optimized using data clustering techniques for images belonging to the same class. Finally, the proposed indexing method is compared to the classical indexing technique, which is nowadays widely used.

  17. Vision-Based Bicycle Detection Using Multiscale Block Local Binary Pattern

    Directory of Open Access Journals (Sweden)

    Hongyu Hu

    2014-01-01

    Full Text Available Bicycle traffic has heavy proportion among all travel modes in some developing countries, which is crucial for urban traffic control and management as well as facility design. This paper proposes a real-time multiple bicycle detection algorithm based on video. At first, an effective feature called multiscale block local binary pattern (MBLBP is extracted for representing the moving object, which is a well-classified feature to distinguish between bicycles and nonbicycles; then, a cascaded bicycle classifier trained by AdaBoost algorithm is proposed, which has a good computation efficiency. Finally, the method is tested with video sequence captured from the real-world traffic scenario. The bicycles in the test scenario are successfully detected.

  18. Discrete Plane Segmentation and Estimation from a Point Cloud Using Local Geometric Patterns

    Institute of Scientific and Technical Information of China (English)

    Yukiko Kenmochi; Lilian Buzer; Akihiro Sugimoto; Ikuko Shimizu

    2008-01-01

    This paper presents a method for segmenting a 3D point cloud into planar surfaces using recently obtained discrete-geometry results. In discrete geometry, a discrete plane is defined as a set of grid points lying between two parallel planes with a small distance, called thickness. In contrast to the continuous case, there exist a finite number of local geometric patterns (LGPs) appearing on discrete planes. Moreover, such an LGP does not possess the unique normal vector but a set of normal vectors. By using those LGP properties, we first reject non-linear points from a point cloud, and then classify non-rejected points whose LGPs have common normal vectors into a planar-surface-point set. From each segmented point set, we also estimate the values of parameters of a discrete plane by minimizing its thickness.

  19. Analysis of fracture patterns and local stress field variations in fractured reservoirs

    Science.gov (United States)

    Deckert, Hagen; Drews, Michael; Fremgen, Dominik; Wellmann, J. Florian

    2010-05-01

    independently estimated regional stress tensor is put as a boundary condition into the BE Model. The computed BE model allows to recognize local 3D stress tensor perturbations caused by the larger faults that act as mechanical inhomogeneities. The geometry of the fracture network from field work together with the local stress tensors derived from the 3D BE models allows examining normal and shear stresses on single fractures in different domains of the investigated area. This in turn is used to evaluate, which of the fractures might preferably act as fluid conduits by describing the dilation potential of single fractures. The combination of an improved understanding of the fracture network along with local stress tensors variations from mechanical models will provide a sound evaluation of fluid pathways in fractured reservoirs. In future applications the accurate investigation of large discontinuity pattern in outcrops might be used for a better mathematical definition of fracture networks which could be implemented into numerical simulations of fluid flow.

  20. Evolutionarily Conserved Pattern of Interactions in a Protein Revealed by Local Thermal Expansion Properties.

    Science.gov (United States)

    Dellarole, Mariano; Caro, Jose A; Roche, Julien; Fossat, Martin; Barthe, Philippe; García-Moreno E, Bertrand; Royer, Catherine A; Roumestand, Christian

    2015-07-29

    The way in which the network of intramolecular interactions determines the cooperative folding and conformational dynamics of a protein remains poorly understood. High-pressure NMR spectroscopy is uniquely suited to examine this problem because it combines the site-specific resolution of the NMR experiments with the local character of pressure perturbations. Here we report on the temperature dependence of the site-specific volumetric properties of various forms of staphylococcal nuclease (SNase), including three variants with engineered internal cavities, as measured with high-pressure NMR spectroscopy. The strong temperature dependence of pressure-induced unfolding arises from poorly understood differences in thermal expansion between the folded and unfolded states. A significant inverse correlation was observed between the global thermal expansion of the folded proteins and the number of strong intramolecular hydrogen bonds, as determined by the temperature coefficient of the backbone amide chemical shifts. Comparison of the identity of these strong H-bonds with the co-evolution of pairs of residues in the SNase protein family suggests that the architecture of the interactions detected in the NMR experiments could be linked to a functional aspect of the protein. Moreover, the temperature dependence of the residue-specific volume changes of unfolding yielded residue-specific differences in expansivity and revealed how mutations impact intramolecular interaction patterns. These results show that intramolecular interactions in the folded states of proteins impose constraints against thermal expansion and that, hence, knowledge of site-specific thermal expansivity offers insight into the patterns of strong intramolecular interactions and other local determinants of protein stability, cooperativity, and potentially also of function.

  1. Expression Patterns and Subcellular Localization of Carbonic Anhydrases Are Developmentally Regulated during Tooth Formation

    Science.gov (United States)

    Reibring, Claes-Göran; El Shahawy, Maha; Hallberg, Kristina; Kannius-Janson, Marie; Nilsson, Jeanette; Parkkila, Seppo; Sly, William S.; Waheed, Abdul; Linde, Anders; Gritli-Linde, Amel

    2014-01-01

    Carbonic anhydrases (CAs) play fundamental roles in several physiological events, and emerging evidence points at their involvement in an array of disorders, including cancer. The expression of CAs in the different cells of teeth is unknown, let alone their expression patterns during odontogenesis. As a first step towards understanding the role of CAs during odontogenesis, we used immunohistochemistry, histochemistry and in situ hybridization to reveal hitherto unknown dynamic distribution patterns of eight CAs in mice. The most salient findings include expression of CAII/Car2 not only in maturation-stage ameloblasts (MA) but also in the papillary layer, dental papilla mesenchyme, odontoblasts and the epithelial rests of Malassez. We uncovered that the latter form lace-like networks around incisors; hitherto these have been known to occur only in molars. All CAs studied were produced by MA, however CAIV, CAIX and CARPXI proteins were distinctly enriched in the ruffled membrane of the ruffled MA but exhibited a homogeneous distribution in smooth-ended MA. While CAIV, CAVI/Car6, CAIX, CARPXI and CAXIV were produced by all odontoblasts, CAIII distribution displayed a striking asymmetry, in that it was virtually confined to odontoblasts in the root of molars and root analog of incisors. Remarkably, from initiation until near completion of odontogenesis and in several other tissues, CAXIII localized mainly in intracellular punctae/vesicles that we show to overlap with LAMP-1- and LAMP-2-positive vesicles, suggesting that CAXIII localizes within lysosomes. We showed that expression of CAs in developing teeth is not confined to cells involved in biomineralization, pointing at their participation in other biological events. Finally, we uncovered novel sites of CA expression, including the developing brain and eye, the olfactory epithelium, melanoblasts, tongue, notochord, nucleus pulposus and sebaceous glands. Our study provides important information for future single or

  2. Expression patterns and subcellular localization of carbonic anhydrases are developmentally regulated during tooth formation.

    Directory of Open Access Journals (Sweden)

    Claes-Göran Reibring

    Full Text Available Carbonic anhydrases (CAs play fundamental roles in several physiological events, and emerging evidence points at their involvement in an array of disorders, including cancer. The expression of CAs in the different cells of teeth is unknown, let alone their expression patterns during odontogenesis. As a first step towards understanding the role of CAs during odontogenesis, we used immunohistochemistry, histochemistry and in situ hybridization to reveal hitherto unknown dynamic distribution patterns of eight CAs in mice. The most salient findings include expression of CAII/Car2 not only in maturation-stage ameloblasts (MA but also in the papillary layer, dental papilla mesenchyme, odontoblasts and the epithelial rests of Malassez. We uncovered that the latter form lace-like networks around incisors; hitherto these have been known to occur only in molars. All CAs studied were produced by MA, however CAIV, CAIX and CARPXI proteins were distinctly enriched in the ruffled membrane of the ruffled MA but exhibited a homogeneous distribution in smooth-ended MA. While CAIV, CAVI/Car6, CAIX, CARPXI and CAXIV were produced by all odontoblasts, CAIII distribution displayed a striking asymmetry, in that it was virtually confined to odontoblasts in the root of molars and root analog of incisors. Remarkably, from initiation until near completion of odontogenesis and in several other tissues, CAXIII localized mainly in intracellular punctae/vesicles that we show to overlap with LAMP-1- and LAMP-2-positive vesicles, suggesting that CAXIII localizes within lysosomes. We showed that expression of CAs in developing teeth is not confined to cells involved in biomineralization, pointing at their participation in other biological events. Finally, we uncovered novel sites of CA expression, including the developing brain and eye, the olfactory epithelium, melanoblasts, tongue, notochord, nucleus pulposus and sebaceous glands. Our study provides important information for

  3. Expression patterns and subcellular localization of carbonic anhydrases are developmentally regulated during tooth formation.

    Science.gov (United States)

    Reibring, Claes-Göran; El Shahawy, Maha; Hallberg, Kristina; Kannius-Janson, Marie; Nilsson, Jeanette; Parkkila, Seppo; Sly, William S; Waheed, Abdul; Linde, Anders; Gritli-Linde, Amel

    2014-01-01

    Carbonic anhydrases (CAs) play fundamental roles in several physiological events, and emerging evidence points at their involvement in an array of disorders, including cancer. The expression of CAs in the different cells of teeth is unknown, let alone their expression patterns during odontogenesis. As a first step towards understanding the role of CAs during odontogenesis, we used immunohistochemistry, histochemistry and in situ hybridization to reveal hitherto unknown dynamic distribution patterns of eight CAs in mice. The most salient findings include expression of CAII/Car2 not only in maturation-stage ameloblasts (MA) but also in the papillary layer, dental papilla mesenchyme, odontoblasts and the epithelial rests of Malassez. We uncovered that the latter form lace-like networks around incisors; hitherto these have been known to occur only in molars. All CAs studied were produced by MA, however CAIV, CAIX and CARPXI proteins were distinctly enriched in the ruffled membrane of the ruffled MA but exhibited a homogeneous distribution in smooth-ended MA. While CAIV, CAVI/Car6, CAIX, CARPXI and CAXIV were produced by all odontoblasts, CAIII distribution displayed a striking asymmetry, in that it was virtually confined to odontoblasts in the root of molars and root analog of incisors. Remarkably, from initiation until near completion of odontogenesis and in several other tissues, CAXIII localized mainly in intracellular punctae/vesicles that we show to overlap with LAMP-1- and LAMP-2-positive vesicles, suggesting that CAXIII localizes within lysosomes. We showed that expression of CAs in developing teeth is not confined to cells involved in biomineralization, pointing at their participation in other biological events. Finally, we uncovered novel sites of CA expression, including the developing brain and eye, the olfactory epithelium, melanoblasts, tongue, notochord, nucleus pulposus and sebaceous glands. Our study provides important information for future single or

  4. A Statistical Approach to Crime Linkage

    OpenAIRE

    Porter, Michael D.

    2014-01-01

    The object of this paper is to develop a statistical approach to criminal linkage analysis that discovers and groups crime events that share a common offender and prioritizes suspects for further investigation. Bayes factors are used to describe the strength of evidence that two crimes are linked. Using concepts from agglomerative hierarchical clustering, the Bayes factors for crime pairs are combined to provide similarity measures for comparing two crime series. This facilitates crime series...

  5. UNSOLVED AND LATENT CRIME: DIFFERENCES AND SIMILARITIES

    Directory of Open Access Journals (Sweden)

    Mikhail Kleymenov

    2017-01-01

    Full Text Available УДК 343Purpose of the article is to study the specific legal and informational nature of the unsolved crime in comparison with the phenomenon of delinquency, special study and analysis to improve the efficiency of law enforcement.Methods of research are abstract-logical, systematic, statistical, study of documents. The main results of research. Unsolved crime has specific legal, statistical and informational na-ture as the crime phenomenon, which is expressed in cumulative statistical population of unsolved crimes. An array of unsolved crimes is the sum of the number of acts, things of which is suspended and not terminated. The fault of the perpetrator in these cases is not proven, they are not considered by the court, it is not a conviction. Unsolved crime must be registered. Latent crime has a different informational nature. The main symptom of latent crimes is the uncertainty for the subjects of law enforcement, which delegated functions of identification, registration and accounting. Latent crime is not recorded. At the same time, there is a "border" area between the latent and unsolved crimes, which includes covered from the account of the crime. In modern Russia the majority of crimes covered from accounting by passing the decision about refusal in excitation of criminal case. Unsolved crime on their criminogenic consequences represents a significant danger to the public is higher compared to latent crime.It is conducted in the article a special analysis of the differences and similarities in the unsolved latent crime for the first time in criminological literature.The analysis proves the need for radical changes in the current Russian assessment of the state of crime and law enforcement to solve crimes. The article argues that an unsolved crime is a separate and, in contrast to latent crime, poorly understood phenomenon. However unsolved latent crime and have common features and areas of interaction.

  6. NFI-C2 temporal-spatial expression and cellular localization pattern during tooth formation.

    Science.gov (United States)

    Lamani, Ejvis; Gluhak-Heinrich, Jelica; MacDougall, Mary

    2015-12-01

    Currently, little is known regarding critical signaling pathways during later stages of tooth development, especially those associated with root formation. Nfi-c null mice, lacking molar roots, have implicated the transcription factor NFI-C as having an essential role in root development. Previously, we identified three NFI-C isoforms expressed in dental tissues with NFI-C2 being the major transcript. However, the expression pattern of the NFI-C2 protein is not characterized. In this study we performed in situ hybridization and immunohistochemistry using isoform specific probes. We show the production of a NFI-C2 peptide antibody, its characterization, the temporal-spatial expression pattern of the NFI-C2 protein during odontogenesis and sub-cellular localization in dental cells. Moderate NFI-C2 staining, as early as bud stage, was detected mostly in the condensing dental ectomesenchyme. This staining intensified within the dental pulp at later stages culminating in high expression in the dentin producing odontoblasts. The dental epithelium showed slight staining until cytodifferentiation of enamel organ into ameloblasts and stratum intermedium. During root formation NFI-C2 expression was high in the Hertwig's epithelial root sheath and later was found in the fully developed root and its supporting tissues. NFI-C2 cellular staining was cytosolic, associated with the Golgi, and nuclear. These data suggest a broader role for NFI-C during tooth formation than limited to root and periodontal ligament development. © 2015 Japanese Society of Developmental Biologists.

  7. Quantitative analysis of facial paralysis using local binary patterns in biomedical videos.

    Science.gov (United States)

    He, Shu; Soraghan, John J; O'Reilly, Brian F; Xing, Dongshan

    2009-07-01

    Facial paralysis is the loss of voluntary muscle movement of one side of the face. A quantitative, objective, and reliable assessment system would be an invaluable tool for clinicians treating patients with this condition. This paper presents a novel framework for objective measurement of facial paralysis. The motion information in the horizontal and vertical directions and the appearance features on the apex frames are extracted based on the local binary patterns (LBPs) on the temporal-spatial domain in each facial region. These features are temporally and spatially enhanced by the application of novel block processing schemes. A multiresolution extension of uniform LBP is proposed to efficiently combine the micropatterns and large-scale patterns into a feature vector. The symmetry of facial movements is measured by the resistor-average distance (RAD) between LBP features extracted from the two sides of the face. Support vector machine is applied to provide quantitative evaluation of facial paralysis based on the House-Brackmann (H-B) scale. The proposed method is validated by experiments with 197 subject videos, which demonstrates its accuracy and efficiency.

  8. Automated Diagnosis of Epilepsy Using Key-Point-Based Local Binary Pattern of EEG Signals.

    Science.gov (United States)

    Tiwari, Ashwani Kumar; Pachori, Ram Bilas; Kanhangad, Vivek; Panigrahi, Bijaya Ketan

    2017-07-01

    The electroencephalogram (EEG) signals are commonly used for diagnosis of epilepsy. In this paper, we present a new methodology for EEG-based automated diagnosis of epilepsy. Our method involves detection of key points at multiple scales in EEG signals using a pyramid of difference of Gaussian filtered signals. Local binary patterns (LBPs) are computed at these key points and the histogram of these patterns are considered as the feature set, which is fed to the support vector machine (SVM) for the classification of EEG signals. The proposed methodology has been investigated for the four well-known classification problems namely, 1) normal and epileptic seizure, 2) epileptic seizure and seizure free, 3) normal, epileptic seizure, and seizure free, and 4) epileptic seizure and nonseizure EEG signals using publically available university of Bonn EEG database. Our experimental results in terms of classification accuracies have been compared with existing methods for the classification of the aforementioned problems. Further, performance evaluation on another EEG dataset shows that our approach is effective for classification of seizure and seizure-free EEG signals. The proposed methodology based on the LBP computed at key points is simple and easy to implement for real-time epileptic seizure detection.

  9. Local texton XOR patterns: A new feature descriptor for content-based image retrieval

    Directory of Open Access Journals (Sweden)

    Anu Bala

    2016-03-01

    Full Text Available In this paper, a novel feature descriptor, local texton XOR patterns (LTxXORP is proposed for content-based image retrieval. The proposed method collects the texton XOR pattern which gives the structure of the query image or database image. First, the RGB (red, green, blue color image is converted into HSV (hue, saturation and value color space. Second, the V color space is divided into overlapping subblocks of size 2 × 2 and textons are collected based on the shape of the textons. Then, exclusive OR (XOR operation is performed on the texton image between the center pixel and its surrounding neighbors. Finally, the feature vector is constructed based on the LTxXORPs and HSV histograms. The performance of the proposed method is evaluated by testing on benchmark database, Corel-1K, Corel-5K and Corel-10K in terms of precision, recall, average retrieval precision (ARP and average retrieval rate (ARR. The results after investigation show a significant improvement as compared to the state-of-the-art features for image retrieval.

  10. Estimating local scaling properties for the classification of interstitial lung disease patterns

    Science.gov (United States)

    Huber, Markus B.; Nagarajan, Mahesh B.; Leinsinger, Gerda; Ray, Lawrence A.; Wismueller, Axel

    2011-03-01

    Local scaling properties of texture regions were compared in their ability to classify morphological patterns known as 'honeycombing' that are considered indicative for the presence of fibrotic interstitial lung diseases in high-resolution computed tomography (HRCT) images. For 14 patients with known occurrence of honeycombing, a stack of 70 axial, lung kernel reconstructed images were acquired from HRCT chest exams. 241 regions of interest of both healthy and pathological (89) lung tissue were identified by an experienced radiologist. Texture features were extracted using six properties calculated from gray-level co-occurrence matrices (GLCM), Minkowski Dimensions (MDs), and the estimation of local scaling properties with Scaling Index Method (SIM). A k-nearest-neighbor (k-NN) classifier and a Multilayer Radial Basis Functions Network (RBFN) were optimized in a 10-fold cross-validation for each texture vector, and the classification accuracy was calculated on independent test sets as a quantitative measure of automated tissue characterization. A Wilcoxon signed-rank test was used to compare two accuracy distributions including the Bonferroni correction. The best classification results were obtained by the set of SIM features, which performed significantly better than all the standard GLCM and MD features (p interstitial lung diseases when compared to standard texture analysis methods.

  11. Random local binary pattern based label learning for multi-atlas segmentation

    Science.gov (United States)

    Zhu, Hancan; Cheng, Hewei; Fan, Yong

    2015-03-01

    Multi-atlas segmentation method has attracted increasing attention in the field of medical image segmentation. It segments the target image by combining warped atlas labels according to a label fusion strategy, usually based on the intensity information of the target and atlas images. However, it has been demonstrated that image intensity information itself is not discriminative enough for distinguishing different subcortical structures in brain magnetic resonance (MR) images. Recent advance in multi-atlas based segmentation has witnessed success of label fusion methods built on informative image features. The key component in these methods is the image feature extraction. Conventional image feature extraction methods, such as textural feature extraction, are built on manually designed image filters and their performance varies when applied to different segmentation problems. In this paper, we propose a random local binary pattern (RLBP) method to generate image features in a random fashion. Based on RLBP features, we use a local learning strategy to fuse labels in multi-atlas based segmentation. Our method has been validated for segmenting hippocampus from MR images. The experiment results have demonstrated that our method can achieve competitive segmentation performance as the state-of-the-art methods.

  12. Local hysteresis loops measurements on irradiated FeSiB patterned dots by magnetic force microscopy

    Energy Technology Data Exchange (ETDEWEB)

    Coïsson, M., E-mail: m.coisson@inrim.it [INRIM, Electromagnetism Division, strada delle Cacce 91, 10135 Torino (Italy); Barrera, G. [INRIM, Electromagnetism Division, strada delle Cacce 91, 10135 Torino (Italy); Università di Torino, Dipartimento di Chimica, via P. Giuria 9, 10125 Torino (Italy); Celegato, F.; Enrico, E.; Olivetti, E.S.; Tiberto, P.; Vinai, F. [INRIM, Electromagnetism Division, strada delle Cacce 91, 10135 Torino (Italy)

    2015-01-01

    Magnetic Force Microscopy (MFM) has been exploited to develop a technique capable of investigating the field-dependent magnetisation reversal processes in patterned systems, allowing the full reconstruction of a local hysteresis loop. Fe–Si–B dots with a lateral size of 6μm and a thickness of 250 nm have been prepared by sputtering and optical lithography. In the as-prepared state, the dots are characterised by a dense stripe domain configuration, clearly visible at the MFM. Subsequently, the dots have been thinned by means of exposition to a focussed ion beam, consisting of Ga{sup +} ions having an energy of 30 keV. The local hysteresis loops have been measured by means of the MFM-derived technique. The progressive thinning of the dots results in the disappearance of the perpendicular anisotropy responsible for the dense stripe domain configuration, with the dominance of the shape anisotropy for thickness values below ≈70nm. The results are consistent with the spin reorientation transition effect studied on similar systems in the form of continuous thin films.

  13. Automatic boiling water reactor control rod pattern design using particle swarm optimization algorithm and local search

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Cheng-Der, E-mail: jdwang@iner.gov.tw [Nuclear Engineering Division, Institute of Nuclear Energy Research, No. 1000, Wenhua Rd., Jiaan Village, Longtan Township, Taoyuan County 32546, Taiwan, ROC (China); Lin, Chaung [National Tsing Hua University, Department of Engineering and System Science, 101, Section 2, Kuang Fu Road, Hsinchu 30013, Taiwan (China)

    2013-02-15

    Highlights: ► The PSO algorithm was adopted to automatically design a BWR CRP. ► The local search procedure was added to improve the result of PSO algorithm. ► The results show that the obtained CRP is the same good as that in the previous work. -- Abstract: This study developed a method for the automatic design of a boiling water reactor (BWR) control rod pattern (CRP) using the particle swarm optimization (PSO) algorithm. The PSO algorithm is more random compared to the rank-based ant system (RAS) that was used to solve the same BWR CRP design problem in the previous work. In addition, the local search procedure was used to make improvements after PSO, by adding the single control rod (CR) effect. The design goal was to obtain the CRP so that the thermal limits and shutdown margin would satisfy the design requirement and the cycle length, which is implicitly controlled by the axial power distribution, would be acceptable. The results showed that the same acceptable CRP found in the previous work could be obtained.

  14. Content-based high-resolution remote sensing image retrieval with local binary patterns

    Science.gov (United States)

    Wang, A. P.; Wang, S. G.

    2006-10-01

    Texture is a very important feature in image analysis including content-based image retrieval (CBIR). A common way of retrieving images is to calculate the similarity of features between a sample images and the other images in a database. This paper applies a novel texture analysis approach, local binary patterns (LBP) operator, to 1m Ikonos images retrieval and presents an improved LBP histogram spatially enhanced LBP (SEL) histogram with spatial information by dividing the LBP labeled images into k*k regions. First different neighborhood P and scale factor R were chosen to scan over the whole images, so that their labeled LBP and local variance (VAR) images were calculated, from which we got the LBP, LBP/VAR, and VAR histograms and SEL histograms. The histograms were used as the features for CBIR and a non-parametric statistical test G-statistic was used for similarity measure. The result showed that LBP/VAR based features got a very high retrieval rate with certain values of P and R, and SEL features that are more robust to illumination changes than LBP/VAR also obtained higher retrieval rate than LBP histograms. The comparison to Gabor filter confirmed the effectiveness of the presented approach in CBIR.

  15. Arresting Children: Examining Recent Trends in Preteen Crime

    Science.gov (United States)

    Butts, Jeffrey A.; Snyder, Howard N.

    2008-01-01

    The public believes that today's juvenile offenders are younger than those of 20 or 25 years ago, and this common perception influences juvenile justice policy. To assess whether the age profile of juvenile delinquents has in fact changed, juvenile crime patterns from 1980 through 2006 were tracked by examining data collected by law enforcement…

  16. Podcast: The Electronic Crimes Division

    Science.gov (United States)

    Sept 26, 2016. Chris Lukas, the Special Agent in Charge of the Electronic Crimes Division within the OIG's Office of Investigations talks about computer forensics, cybercrime in the EPA and his division's role in criminal investigations.

  17. South African Crime Quarterly 56

    African Journals Online (AJOL)

    Edited by Chandré Gould and Andrew Faull

    The inadequate conditions of South Africa's correctional facilities are well known. Health care, sanitation, food provision, access to education and reading materials, and, in particular, ..... J Belknap, The invisible woman: gender, crime and.

  18. Crime fiction and moral emotions

    DEFF Research Database (Denmark)

    Grodal, Torben Kragh

    2011-01-01

    The article first discusses how crime fiction centrally activates moral emotions related to feelings of social trust and social conflicts. The article uses psychological theory to analyse audio-visual fiction, and it takes an evolutionary stance in relation to morality; within film studies......, and especially within literary studies, the inspiration from evolutionary studies has been strong in the last decade. Humans are adapted to group living, and emotions linked to fairness have an innate basis. The article then shows how different crime stories activate different stages in Kohlberg’s functional...... typology of moral systems and how different stages relate to different social systems. Further, a functional description of the various moral emotions is used to characterize crime fictions. The use of moral emotions in crime fiction is exemplified in Oplev’s The Girl with the Dragon Tattoo (2009), angry...

  19. Partners Against Crime (PAC) Districts

    Data.gov (United States)

    City and County of Durham, North Carolina — The Partners Against Crime (PAC) program promotes collaboration among police officers, Durham residents, and city and county government officials to find...

  20. Youth Crime: Causes and Remedies

    OpenAIRE

    Ali, Muhammad

    2008-01-01

    This essay was written for the essay competition organized by Ministry of Youth Affairs Government of Pakistan. It discusses the possible determinant factors of youth crimes in Pakistan and provides logical suggestion to tackle the problem.

  1. Crime, Teenage Abortion, and Unwantedness

    Science.gov (United States)

    Shoesmith, Gary L.

    2015-01-01

    This article disaggregates Donohue and Levitt’s (DL’s) national panel-data models to the state level and shows that high concentrations of teenage abortions in a handful of states drive all of DL’s results in their 2001, 2004, and 2008 articles on crime and abortion. These findings agree with previous research showing teenage motherhood is a major maternal crime factor, whereas unwanted pregnancy is an insignificant factor. Teenage abortions accounted for more than 30% of U.S. abortions in the 1970s, but only 16% to 18% since 2001, which suggests DL’s panel-data models of crime/arrests and abortion were outdated when published. The results point to a broad range of future research involving teenage behavior. A specific means is proposed to reconcile DL with previous articles finding no relationship between crime and abortion.

  2. Postsecularism in Scandinavian Crime Fiction

    DEFF Research Database (Denmark)

    Hansen, Kim Toft

    2014-01-01

    This article considers the postsecular turn in Scandinavian crime fiction. Postsecularism describes a renewed openness towards questions of spirituality, while maintaining the practice of critical scrutiny. Since 2000, we have seen an intensive increase in the number of titles treating religion a......-constrained modernity and the theological theory of a welfare theodicy as valuable discussions of why we see this spiritual interest in crime fiction....

  3. Identification of the impact of crime on physical activity depends upon neighbourhood scale: multilevel evidence from 203,883 Australians.

    Science.gov (United States)

    Astell-Burt, Thomas; Feng, Xiaoqi; Kolt, Gregory S

    2015-01-01

    Equivocal findings on crime as a deterrent for physical activity may be due to effects of geographic scale on exposure measurement. To investigate this hypothesis, physical activity was measured in 203,883 Australians and linked to standardised crime counts within small ('Census Collection Districts'; approx. 330 residents) and larger areas ('Statistical Local Areas'; approx. 32,000 residents). A median rate ratio of 2.26 indicated substantive geographic variation in moderate-to-vigorous physical activity (MVPA). Adjusting for confounders, multilevel negative binomial regression reported lower MVPA with more crime consistently in small, but not in larger areas. Reducing small pockets of local crime may encourage more physically active lifestyles.

  4. Official crime data versus collaborative crime mapping at a Brazilian city

    Science.gov (United States)

    Brito, P. L.; Jesus, E. G. V.; Sant'Ana, R. M. S.; Martins, C.; Delgado, J. P. M.; Fernandes, V. O.

    2014-11-01

    In July of 2013 a group of undergraduate students from the Federal University of Bahia, Brazil, published a collaborative web map called "Where I Was Robbed". Their initial efforts in publicizing their web map were restricted to announce it at a local radio as a tool of social interest. In two months the map had almost 10.000 reports, 155 reports per day and people from more the 350 cities had already reported a crime. The present study consists in an investigation about this collaborative web map spatial correlation to official robbery data registered at the Secretary of Public Safety database, for the city of Salvador, Bahia. Kernel density estimator combined with map algebra was used to the investigation. Spatial correlations with official robbery data for the city of Salvador were not found initially, but after standardizing collaborative data and mining official registers, both data pointed at very similar areas as the main hot spots for pedestrian robbery. Both areas are located at two of the most economical active areas of the city, although web map crimes reports were more concentrated in an area with higher income population. This results and discussions indicates that this collaborative application is been used mainly by mid class and upper class parcel of the city population, but can still provide significant information on public safety priority areas. Therefore, extended divulgation, on local papers, radio and TV, of the collaborative crime map application and partnership with official agencies are strongly recommended.

  5. Challenges of organized environmental crime

    Directory of Open Access Journals (Sweden)

    Bugarski Tatjana D.

    2015-01-01

    Full Text Available Environment as the totality of natural and man-made values and their relationships, is a complex problem that is not just a challenge for the law in the sense that it is protected from intrusion, but also for the negative social phenomena such as crime. Dynamic negative social phenomenon, immanent to every society, crime is constantly in the process of 'adaptation' in terms of modification of existing and creation of new forms. One of the contemporary forms of crime is an environmental crime which multiplies its concrete forms of manifestation, which is due to the extraordinary diversity of the environment in which offenders constantly find new enforcement cases. Especially significant issues regarding the environment is waste whose collection, transport, treatment and disposal is one of the priority importance for humanity. However, insufficient awareness of the significance and importance of this issue, as well as the harmful consequences of failure in connection with the waste in an appropriate manner, together with the motive of greed is enough for offenders to deal with illegal activity and exercise in relation to different types of waste. In this type of criminal activity usually occur organized criminal group that this type of criminal activity makes it even more difficult. These problems are extremely important and complex, in this paper, attention is given to the organized environmental crime in connection with smuggling of hazardous waste, as one of the forms of organized environmental crime.

  6. Lost in Translation: U.S. Forces and Crime in Japan

    Science.gov (United States)

    2015-09-01

    1960. http://www.mofa.go.jp/ region /n-america/us/q&a/ref/1.html. Tritten, Travis. “Former Okinawa dependent charged in fatal 2008 accident .” Stars and...Japan (USFJ) military and civilian personnel and their dependents responsible for accidents and crimes. The thesis examines how and why this pattern of...and civilian personnel and their dependents responsible for accidents and crimes. The thesis examines how and why this pattern of reporting occurs

  7. The philosophical aspects of hate crime and hate crime legislation: introducing the special section on the philosophy of hate crime.

    Science.gov (United States)

    Brax, David; Munthe, Christian

    2015-06-01

    In this introduction to the special symposium on the philosophy of hate crime, we provide an overview of the main philosophical aspects of hate crime and hate crime legislation. We point out that there are two overarching philosophical issues that span over the literature: the Conceptual Question--concerning what hate crime is--and the Normative Question--concerning the status of hate crimes and the justification of hate crime legislation. We also provide brief summaries of the articles in the special section and point to their relations to the broader themes. © The Author(s) 2014.

  8. Youht Crime and Its Relations With Schools

    Directory of Open Access Journals (Sweden)

    Halil IŞIK

    2006-12-01

    Full Text Available The purpose of this study is to make a conceptual analysis relation with youth crime, crime - school relations. Under this general purpose, following topics will be presented; (a theories about youth crime, (b risk factors for youth crime, school crime relations, and (d solutions for youth crime. To analyze the issue of youth crime, there are two basic theories. These theories are general strain theory and escape theory. Possible risk factorsmotivating youth crime are related to peer group, family, community, and schools. Schools have number of different devices to fight with youth crime. Using these devices can help to solve the problem. There is no one type model or solution because; every school is unique in its nature.

  9. Exploring paradigms of crime reduction: An empirical longitudinal study

    DEFF Research Database (Denmark)

    Soothill, University of Lancaster, Keith; Christoffersen, Mogens; Azhar, Hussain

    on offenders with first-time convictions for shoplifting (n=1,778), for violence (n=1,585) and for burglary (n=1,208), all four paradigms made a contribution to risk of first time offending for all three crimes. The counter factual analysis indicated that a focus on structural issues within a society may have......Using Danish registers for a 1980 birth cohort of 29,944 males with parental information and following up these cases for 24 years, the study considers four paradigms of crime reduction (parental child-rearing, structural factors around adolescence, locality and individual resources). Focusing...

  10. Crime Scene Reconstruction Using a Fully Geomatic Approach

    Directory of Open Access Journals (Sweden)

    Andrea Lingua

    2008-10-01

    Full Text Available This paper is focused on two main topics: crime scene reconstruction, based on a geomatic approach, and crime scene analysis, through GIS based procedures. According to the experience of the authors in performing forensic analysis for real cases, the aforesaid topics will be examined with the specific goal of verifying the relationship of human walk paths at a crime scene with blood patterns on the floor. In order to perform such analyses, the availability of pictures taken by first aiders is mandatory, since they provide information about the crime scene before items are moved or interfered with. Generally, those pictures are affected by large geometric distortions, thus - after a brief description of the geomatic techniques suitable for the acquisition of reference data (total station surveying, photogrammetry and laser scanning - it will be shown the developed methodology, based on photogrammetric algorithms, aimed at calibrating, georeferencing and mosaicking the available images acquired on the scene. The crime scene analysis is based on a collection of GIS functionalities for simulating human walk movements and creating a statistically significant sample. The developed GIS software component will be described in detail, showing how the analysis of this statistical sample of simulated human walks allows to rigorously define the probability of performing a certain walk path without touching the bloodstains on the floor.

  11. Patterns of Spontaneous Local Network Activity in Developing Cerebral Cortex: Relationship to Adult Cognitive Function.

    Science.gov (United States)

    Peinado, Alejandro; Abrams, Charles K

    2015-01-01

    Detecting neurodevelopμental disorders of cognition at the earliest possible stages could assist in understanding them mechanistically and ultimately in treating them. Finding early physiological predictors that could be visualized with functional neuroimaging would represent an important advance in this regard. We hypothesized that one potential source of physiological predictors is the spontaneous local network activity prominent during specific periods in development. To test this we used calcium imaging in brain slices and analyzed variations in the frequency and intensity of this early activity in one area, the entorhinal cortex (EC), in order to correlate early activity with level of cognitive function later in life. We focused on EC because of its known role in different types of cognitive processes and because it is an area where spontaneous activity is prominent during early postnatal development in rodent models of cortical development. Using rat strains (Long-Evans, Wistar, Sprague-Dawley and Brattleboro) known to differ in cognitive performance in adulthood we asked whether neonatal animals exhibit corresponding strain-related differences in EC spontaneous activity. Our results show significant differences in this activity between strains: compared to a high cognitive-performing strain, we consistently found an increase in frequency and decrease in intensity in neonates from three lower performing strains. Activity was most different in one strain considered a model of schizophrenia-like psychopathology. While we cannot necessarily infer a causal relationship between early activity and adult cognition our findings suggest that the pattern of spontaneous activity in development could be an early predictor of a developmental trajectory advancing toward sub-optimal cognitive performance in adulthood. Our results further suggest that the strength of dopaminergic signaling, by setting the balance between excitation and inhibition, is a potential underlying

  12. Patterns of local recurrence in rectal cancer after a multidisciplinary approach

    Institute of Scientific and Technical Information of China (English)

    Jose M Enríquez-Navascués; Nerea Borda; Aintzane Lizerazu; Carlos Placer; Jose L Elosegui; Juan P Ciria; Adelaida Lacasta; Luis Bujanda

    2011-01-01

    Improvements in surgery and the application of combined approaches to fight rectal cancer have succeeded in reducing the local recurrence (LR) rate and whenthere is LR it tends to appear later and less often in isolation. Moreover, a subtle change in the distribution of LRs with respect to the pelvis has been observed.In general terms, prior to total mesorectal excision the most common LRs were central types (perianastomotic and anterior) while lateral and posterior forms (presacral)have become more common since the growth in the use of combined treatments. No differences have been reported in the current pattern of LRs as a function of the type of approach used, that is, neo-adjuvanttherapies (short-term or long-course radiotherapy, or chemoradiotherapy versus extended lymphadenectomy,though there is a trend towards posterior or presacral LR in patients in the Western world and lateral LR in Asia. Nevertheless, both may arise from the samemechanism. Moreover, as well as the mode of treatment,the type of LR is related to the height of the initial tumor. Nowadays most LRs are related to theadvanced nature of the disease. Involvement of the circumferential radial margin and spillage of residual tumor cells from lymphatic leakage in the pelvic side wallare two plausible mechanisms for the genesis of LR.The patterns of pelvic recurrence itself (pelvic subsites)also have important implications for prognosis and are related to the potential success of salvage curative approach. The re-operability for cure and prognosis are generally better for anastomotic and anterior types than for presacral and lateral recurrences. Overall survival after LR diagnosis is lower with radio or chemoradiotherapy plus optimal surgery approaches, compared to optimal surgery alone.

  13. Local knowledge, use pattern and geographical distribution of Moringa oleifera Lam. (Moringaceae) in Nigeria.

    Science.gov (United States)

    Popoola, Jacob O; Obembe, Olawole O

    2013-11-25

    All parts of Moringa oleifera are medicinally valuable with overlapping uses in treating myriads of ailments and diseases including body pains and weakness, fever, asthma, cough, blood pressure, arthritis, diabetes, epilepsy, wound, and skin infection. Moringa also has robust ability to challenge terminal diseases such as HIV/AIDs infections, chronic anemia, cancer, malaria and hemorrhage. The present study was to obtain ethnobotanical information on the use and local knowledge variation, geographical distribution, and to collect different landraces of Moringa oleifera from the different agro-ecological regions in Nigeria, for further studies. Ethnobotanical data were collected through face to face interviews, semi structured questionnaires and discussions with selected people who had knowledge about the plant. The fidelity level (FL %) and use value for different use categories of Moringa oleifera and its parts were estimated. The variation in ethnobotanical knowledge was evaluated by comparing the mean use value among ethnic, gender and age groups using sample T test. Garmi GPS was used to determine the locations (latitude and longitude) and height in different areas to assess the geographical spread of the species. Seven (7) categories of use (Food, medicine, fodder, fencing, firewood, gum and coagulant) were recorded for Moringa oleifera. Food and medicinal uses showed highest fidelity level while the leaves and the seeds were the plant parts most utilized for the same purposes. There were significant differences among the ethnic, gender and age groups regarding the ethno-botanical use value. The geographical distribution pattern shows that the Moringa oleifera is well distributed in all ecological zones of Nigeria, well adapted to the varied climatic conditions and gaining unprecedented awareness among the people. Though considered an introduced species, Moringa oleifera has found wide acceptance, recognition and usefulness among the various ethnicities in the

  14. Medicinal Plant Recognition of Leaf Shape using Localized Arc Pattern Method

    Directory of Open Access Journals (Sweden)

    Ni Kadek Ayu Wirdiani

    2016-08-01

    Full Text Available Medicinal plants are plants that have benefit in order to supply the needs of families traditionally medicine. Medicinal plants have diverse types that causing modern society have difficulty in recognizing these crops. Medicinal plants generally can be identified by the leaves, stems and fruit. One of the leaves characteristics can be distinguished based on vein structure and shape of its. Based on these problem, plant recognition based on vein and shape are made by using Localized Arc Pattern Method. There are two important processes in Plant Recognition Applications. First process is Enrollment and the second is Recognition process. In the Enrolment process, the leaves image filed as many as 6 images for each leaves type. This image then calculated based on the 42 special model pattern obtained and the feature is stored as a reference image. Leaves images that used as test image are 200 images. On the Recognition process, the test image will be process which as same as at Enrollment process, however feature from the test image will be comparing with reference image in database, then it calculate the difference value. This process uses a threshold value to determine whether the test images leaves are recognized or not. When dissimilarity value is smaller than the threshold is known as the same leaves, when instead then it known as a different leaves or not known at all. Experiment result shows in this application can recognize 77% of total leaves and False Accepted Ratio (FAR equal to 4.5% and False Rejection Ratio (FRR equal to 18.5%. This result was influenced by the shiny surface of leaf and shape of the leaves are small.

  15. Using pattern recognition to automatically localize reflection hyperbolas in data from ground penetrating radar

    Science.gov (United States)

    Maas, Christian; Schmalzl, Jörg

    2013-08-01

    Ground Penetrating Radar (GPR) is used for the localization of supply lines, land mines, pipes and many other buried objects. These objects can be recognized in the recorded data as reflection hyperbolas with a typical shape depending on depth and material of the object and the surrounding material. To obtain the parameters, the shape of the hyperbola has to be fitted. In the last years several methods were developed to automate this task during post-processing. In this paper we show another approach for the automated localization of reflection hyperbolas in GPR data by solving a pattern recognition problem in grayscale images. In contrast to other methods our detection program is also able to immediately mark potential objects in real-time. For this task we use a version of the Viola-Jones learning algorithm, which is part of the open source library "OpenCV". This algorithm was initially developed for face recognition, but can be adapted to any other simple shape. In our program it is used to narrow down the location of reflection hyperbolas to certain areas in the GPR data. In order to extract the exact location and the velocity of the hyperbolas we apply a simple Hough Transform for hyperbolas. Because the Viola-Jones Algorithm reduces the input for the computational expensive Hough Transform dramatically the detection system can also be implemented on normal field computers, so on-site application is possible. The developed detection system shows promising results and detection rates in unprocessed radargrams. In order to improve the detection results and apply the program to noisy radar images more data of different GPR systems as input for the learning algorithm is necessary.

  16. Unemployment and Gang Crime: Could Prosperity Backfire?

    OpenAIRE

    Poutvaara, Panu; Priks, Mikael

    2007-01-01

    Empirical evidence reveals that unemployment tends to increase property crime but that it has no effect on violent crime. To explain these facts, we examine a model of criminal gangs and suggest that there is a substitution effect between property crime and violent crime at work. In the model, non-monetary valuation of gang membership is private knowledge. Thus the leaders face a trade-off between less crime per member in large gangs and more crime per member in small gangs. Unemployment i...

  17. Co-Occurrence of Local Binary Patterns Features for Frontal Face Detection in Surveillance Applications

    Directory of Open Access Journals (Sweden)

    Louis Wael

    2011-01-01

    Full Text Available Face detection in video sequence is becoming popular in surveillance applications. The tradeoff between obtaining discriminative features to achieve accurate detection versus computational overhead of extracting these features, which affects the classification speed, is a persistent problem. This paper proposes to use multiple instances of rotational Local Binary Patterns (LBP of pixels as features instead of using the histogram bins of the LBP of pixels. The multiple features are selected using the sequential forward selection algorithm we called Co-occurrence of LBP (CoLBP. CoLBP feature extraction is computationally efficient and produces a high-performance rate. CoLBP features are used to implement a frontal face detector applied on a 2D low-resolution surveillance sequence. Experiments show that the CoLBP face features outperform state-of-the-art Haar-like features and various other LBP features extensions. Also, the CoLBP features can tolerate a wide range of illumination and blurring changes.

  18. Nucleotide diversity patterns of local adaptation at drought-related candidate genes in wild tomatoes.

    Science.gov (United States)

    Xia, Hui; Camus-Kulandaivelu, Létizia; Stephan, Wolfgang; Tellier, Aurélien; Zhang, Zhenwen

    2010-10-01

    We surveyed nucleotide diversity at two candidate genes LeNCED1 and pLC30-15, involved in an ABA (abscisic acid) signalling pathway, in two closely related tomato species Solanum peruvianum and Solanum chilense. Our six population samples (three for each species) cover a range of mesic to very dry habitats. The ABA pathway plays an important role in the plants' response to drought stress. LeNCED1 is an upstream gene involved in ABA biosynthesis, and pLC30-15 is a dehydrin gene positioned downstream in the pathway. The two genes show very different patterns of nucleotide variation. LeNCED1 exhibits very low nucleotide diversity relative to the eight neutral reference loci that were previously surveyed in these populations. This suggests that strong purifying selection has been acting on this gene. In contrast, pLC30-15 exhibits higher levels of nucleotide diversity and, in particular in S. chilense, higher genetic differentiation between populations than the reference loci, which is indicative of local adaptation. In the more drought-tolerant species S. chilense, one population (from Quicacha) shows a significant haplotype structure, which appears to be the result of positive (diversifying) selection.

  19. Spatial patterns of coral survivorship: impacts of adult proximity versus other drivers of localized mortality

    Directory of Open Access Journals (Sweden)

    David A. Gibbs

    2015-11-01

    Full Text Available Species-specific enemies may promote prey coexistence through negative distance- and density-dependent survival of juveniles near conspecific adults. We tested this mechanism by transplanting juvenile-sized fragments of the brooding corals Pocillopora damicornis and Seriatopora hystrix 3, 12, 24 and 182 cm up- and down-current of conspecific adults and monitoring their survival and condition over time. We also characterized the spatial distribution of P. damicornis and S. hystrix within replicate plots on three Fijian reef flats and measured the distribution of small colonies within 2 m of larger colonies of each species. Juvenile-sized transplants exhibited no differences in survivorship as a function of distance from adult P. damicornis or S. hystrix. Additionally, both P. damicornis and S. hystrix were aggregated rather than overdispersed on natural reefs. However, a pattern of juveniles being aggregated near adults while larger (and probably older colonies were not suggests that greater mortality near large adults could occur over longer periods of time or that size-dependent mortality was occurring. While we found minimal evidence of greater mortality of small colonies near adult conspecifics in our transplant experiments, we did document hot-spots of species-specific corallivory. We detected spatially localized and temporally persistent predation on P. damicornis by the territorial triggerfish Balistapus undulatus. This patchy predation did not occur for S. hystrix. This variable selective regime in an otherwise more uniform environment could be one mechanism maintaining diversity of corals on Indo-Pacific reefs.

  20. Classification of High Spatial Resolution Image Using Multi Circular Local Binary Pattern and Variance

    Directory of Open Access Journals (Sweden)

    D. Chakraborty

    2013-11-01

    Full Text Available High spatial resolution satellite image comprises of textured and non-textured regions. Hence classification of high spatial resolution satellite image either by pixel-based or texture-based classification technique does not yield good results. In this study, the Multi Circular Local Binary Pattern (MCLBP Operator and variance (VAR based algorithms are used together to transform the image for measuring the texture. The transformed image is segmented into textured and non-textured region using a threshold. Subsequently, the original image is extracted into textured and non-textured regions using this segmented image mask. Further, extracted textured region is classified using ISODATA classification algorithm considering MCLBP and VAR values of individual pixel of textured region and extracted non-textured region of the image is classified using ISODATA classification algorithm. In case of non-textured region MCLBP and VAR value of individual pixel is not considered for classification as significant textural variation is not found among different classes. Consequently the classified outputs of non-textured and textured region that are generated independently are merged together to get the final classified image. IKONOS 1m PAN images are classified using the proposed classification algorithm and found that the classification accuracy is more than 84%.

  1. Reinforced AdaBoost learning for object detection with local pattern representations.

    Science.gov (United States)

    Lee, Younghyun; Han, David K; Ko, Hanseok

    2013-01-01

    A reinforced AdaBoost learning algorithm is proposed for object detection with local pattern representations. In implementing AdaBoost learning, the proposed algorithm employs an exponential criterion as a cost function and Newton's method for its optimization. In particular, we introduce an optimal selection of weak classifiers minimizing the cost function and derive the reinforced predictions based on a judicial confidence estimate to determine the classification results. The weak classifier of the proposed method produces real-valued predictions while that of the conventional AdaBoost method produces integer valued predictions of +1 or -1. Hence, in the conventional learning algorithms, the entire sample weights are updated by the same rate. On the contrary, the proposed learning algorithm allows the sample weights to be updated individually depending on the confidence level of each weak classifier prediction, thereby reducing the number of weak classifier iterations for convergence. Experimental classification performance on human face and license plate images confirm that the proposed method requires smaller number of weak classifiers than the conventional learning algorithm, resulting in higher learning and faster classification rates. An object detector implemented based on the proposed learning algorithm yields better performance in field tests in terms of higher detection rate with lower false positives than that of the conventional learning algorithm.

  2. Facial Expression Recognition Based on Local Binary Patterns and Kernel Discriminant Isomap

    Directory of Open Access Journals (Sweden)

    Xiaoming Zhao

    2011-10-01

    Full Text Available Facial expression recognition is an interesting and challenging subject. Considering the nonlinear manifold structure of facial images, a new kernel-based manifold learning method, called kernel discriminant isometric mapping (KDIsomap, is proposed. KDIsomap aims to nonlinearly extract the discriminant information by maximizing the interclass scatter while minimizing the intraclass scatter in a reproducing kernel Hilbert space. KDIsomap is used to perform nonlinear dimensionality reduction on the extracted local binary patterns (LBP facial features, and produce low-dimensional discrimimant embedded data representations with striking performance improvement on facial expression recognition tasks. The nearest neighbor classifier with the Euclidean metric is used for facial expression classification. Facial expression recognition experiments are performed on two popular facial expression databases, i.e., the JAFFE database and the Cohn-Kanade database. Experimental results indicate that KDIsomap obtains the best accuracy of 81.59% on the JAFFE database, and 94.88% on the Cohn-Kanade database. KDIsomap outperforms the other used methods such as principal component analysis (PCA, linear discriminant analysis (LDA, kernel principal component analysis (KPCA, kernel linear discriminant analysis (KLDA as well as kernel isometric mapping (KIsomap.

  3. Crime in relation to urban design. Case study: The Greater Cairo Region

    Directory of Open Access Journals (Sweden)

    Heba Adel

    2016-09-01

    Full Text Available Crime is a part of any social system and known to human communities since its origins. It differs from community to another, even within one community it doesn’t occur equally in all places and nor by the same way. It is also concentrated in some places more than others, sometimes increases, sometimes decreases, etc. Previous researches have proved that crime rate has significant correlation with different social factors: education levels, poverty rates and lack of social organization, while others have drawn the attention to its relation with the built environment. They proposed that crime occurs in places where both opportunities and criminals are available. The role of this paper is to identify urban circumstances related to crime occurrence within the Greater Cairo Region, and to propose different ways to reduce these crimes. Consecutively, agglomeration’s main districts were scrutinized according to social analysis, street-network pattern and land-use.

  4. A mock juror investigation of blame attribution in the punishment of hate crime perpetrators.

    Science.gov (United States)

    Cramer, Robert J; Clark, John W; Kehn, Andre; Burks, Alixandra C; Wechsler, Hayley J

    2014-01-01

    We examined blame attribution as a moderator of perceptions of hate crimes against gay, African American, and transgender victims. Participants were 510 Texas jury panel members. Results of vignette-based crime scenarios showed that victim blame displayed significant negative, and perpetrator blame significant positive, effects on sentencing recommendations. Also as hypothesized, victim and perpetrator blame moderated the effect of support for hate crime legislation. Interaction patterns suggested that both types of blame attribution influence sentencing recommendations, but only for participants disagreeing with hate crime legislation. Three-way interactions with victim type also emerged, indicating that the effects of both types of blame attribution show particular influences when the victim is gay, as opposed to transgender or African American. Implications for attribution theory, hate crime policy, and jury selection are discussed.

  5. Applications of Remote Sensing and GIS(Geographic Information System) in Crime Analysis of Gujranwala City.

    Science.gov (United States)

    Munawar, Iqra

    2016-07-01

    Crime mapping is a dynamic process. It can be used to assist all stages of the problem solving process. Mapping crime can help police protect citizens more effectively. The decision to utilize a certain type of map or design element may change based on the purpose of a map, the audience or the available data. If the purpose of the crime analysis map is to assist in the identification of a particular problem, selected data may be mapped to identify patterns of activity that have been previously undetected. The main objective of this research was to study the spatial distribution patterns of the four common crimes i.e Narcotics, Arms, Burglary and Robbery in Gujranwala City using spatial statistical techniques to identify the hotspots. Hotspots or location of clusters were identified using Getis-Ord Gi* Statistic. Crime analysis mapping can be used to conduct a comprehensive spatial analysis of the problem. Graphic presentations of such findings provide a powerful medium to communicate conditions, patterns and trends thus creating an avenue for analysts to bring about significant policy changes. Moreover Crime mapping also helps in the reduction of crime rate.

  6. From “Asylum”to “Salvation”:the Transformation of Crime Prevention and Control Pattern for Social Security%“收容”到“救助”:社会治安防控模式的转型

    Institute of Scientific and Technical Information of China (English)

    汤秀娟

    2014-01-01

    The new policy of population management has provided a sound institutional basis for the transfor-mation of crime prevention and control pattern from the traditional one to the modern one.In other words,it moves from simplicity,stationery,control and ruled by man to multiplicity,dynamics,service,and ruled by law.That apart,it moves towards the target of pursuit of harmony in society.However,during the transitional period,the transformation of the crime prevention and control pattern is restricted by heterogeneous factor;hence,positive measures must be found to eliminate the mentioned weaknesses.%人口管理的新政策为城市社会治安的防控模式由传统向现代的转型提供了良好的制度基础,表现为由单一、静态、管制、以人治为主要手段特征的传统模式向复合、动态、服务、以法治型和追求和谐为终极目标的现代社会治安防控模式的转变。而转型期社会治安防控模式的转变受异质性因素的制约,需要运用积极的举措对其制约因素予以消解。

  7. Linking Places to Problems: Geospatial Theories of Neighborhoods, Alcohol and Crime.

    Science.gov (United States)

    Gorman, Dennis M; Gruenewald, Paul J; Waller, Lance A

    2013-06-01

    This paper provides a critical review of two broad categories of social ecological theories of crime, social integration and place-based theories, and their relationships to spatial assessments of crime patterns. Social integration theories emphasize the role of neighborhood disorganization on crime, while place theories stress the social interactions within and between places as a source of crime. We provide an analysis of the extent to which these two types of theorizing describe processes and mechanisms that are truly ecologic (identify specific interactions between individuals and their environments) and truly spatial (identify specific movement and interaction patterns of individuals and groups) as they endeavor to explain crime outcomes. We suggest that social integration theories do not provide spatial signatures of sufficient specificity to justify the application of spatial statistical techniques as quantitative arbiters of the theory. On the other hand, place based theories go some way toward addressing these issues because the emphasis is placed on understanding the exact physical and social characteristics of place and the activities that occur around locations as sources of crime. Routine activities and crime potential theories attempt to explain clustering or "hot spots" of crime in ways that give clear spatial dimension by looking at micro-spatial interactions between offenders and targets of crime. These theories have strong ecological implications as well, since they contain specific statements about how people use the space around them and how these patterns of use are related to patterns of criminal activity. We conclude by identifying a set of requirements for successful empirical tests of geospatial theories, including the development of valid measures of key theoretical constructs and the formulation of critical empirical assessments of geospatial hypotheses derived from motivating theory.

  8. L’impossible crime

    Directory of Open Access Journals (Sweden)

    Fabienne Giuliani

    2011-06-01

    Full Text Available Figure appréciée des romanciers du xixe siècle, l’incestueuse prend tour à tour le visage de Lucrèce, Salomé ou Phèdre. Toujours voluptueuse, cette dernière est une fille, une sœur, mais jamais, elle n’est présentée comme une mère. Est-ce à dire que les mères ne pratiquent pas l’inceste ? La lecture de la littérature médicale, qui ne dialogue pas sur le phénomène, ainsi que celle des procès de Cours d’assises, qui traduisent 92% d’hommes devant les jurés, entérine cette vision masculine du crime. Pourtant, plongé dans une lecture attentive des sources, l’historien croise des histoires de mères, souvent violentes, qui s’attaquent sexuellement à leurs enfants. Comment expliquer ce décalage ?Salome, Phèdre and Lucrezia Borgia were the most appreciated figures of incest in the French literature during the nineteenth-century. Sister or daugther, they were always described as voluptuous women. But concerning the incestuous mother, the writers remained silent. Didn’t she exist? Even the medical literature and the Justice System, which judged 92% of male, agreed with this social imaginary in keeping quiet about incestuous mother. By a careful glance at the sources, the historian can however cross the path of these incestuous mothers, often more violent than the fathers with their children. How can this gap be explained?

  9. Localization of Motor Neurons and Central Pattern Generators for Motor Patterns Underlying Feeding Behavior in Drosophila Larvae

    OpenAIRE

    Sebastian Hückesfeld; Andreas Schoofs; Philipp Schlegel; Anton Miroschnikow; Pankratz, Michael J.

    2015-01-01

    Motor systems can be functionally organized into effector organs (muscles and glands), the motor neurons, central pattern generators (CPG) and higher control centers of the brain. Using genetic and electrophysiological methods, we have begun to deconstruct the motor system driving Drosophila larval feeding behavior into its component parts. In this paper, we identify distinct clusters of motor neurons that execute head tilting, mouth hook movements, and pharyngeal pumping during larval feedin...

  10. The Development of Community Crime Preventing Network Model in Northeastern Thailand

    Directory of Open Access Journals (Sweden)

    Cheuchai Po-Klin

    2010-01-01

    Full Text Available Problem statement: Crime is the thing deteriorating social security. The objectives of this research were to study: (1 the historical background for preventing crime in northeastern region, (2 current situation and problem of community network for preventing crime in northeastern region and (3 develop the model of community network for preventing crime in northeastern region. Approach: The research area included Mahasarakam, Ubonrachatani and Amnaj-Jaroen Provinces. The population samples providing information were selected by Purposive Sampling, including: 36 experts, 30 key informants, 18 general villagers, total of 83 persons. The instruments using for collecting data, included: (1 the interview form, (2 the observation form, (3 focus group discussion and (4 Workshop. Data were analyzed based on specified goal. The research findings were presented by analytic descriptive. Results: (1 For historical background of crime in northeastern region, prevention and problem solving, were not prominent. It might be because the people had the King as their reverend, leader and protector. They also had the religious holding their mind, traditional frame controlling people in society. Besides, they had simple life and were generous mind, supported with each other. So, the crime didn’t occur; (2 the cause of crime in general, often occurred by various factors including the economic, social and cultural, the lack of education of people as well as the influence of environment as major causes. The type of crime in recent time were changed in more complex forms including increased crime types, from one person to group of the crime organization or international network. As a result, it caused more problems in the region and it’s nearby; (3 the pattern of community network for preventing crime in northeastern region by managing model in which the member and organization in community, agreed to cooperate and connect with each other as community network for

  11. Assessing Crime as a Problem: The Relationship between Residents' Perception of Crime and Official Crime Rates over 25 Years

    Science.gov (United States)

    Hipp, John R.

    2013-01-01

    This study compares the relationship between official crime rates in census tracts and resident perceptions of crime. Using a unique data set that links household-level data from the American Housing Survey metro samples over 25 years (1976-1999) with official crime rate data for census tracts in selected cities during selected years, this study…

  12. Stress Field in Brazil with Focal Mechanism: Regional and Local Patterns

    Science.gov (United States)

    Dias, F.; Assumpcao, M.

    2013-05-01

    The knowledge of stress field is fundamental not only to understand driving forces and plate deformation but also in the study of intraplate seismicity. The stress field in Brazil has been determined mainly using focal mechanisms and a few breakout data and in-situ measurements. However the stress field still is poorly known in Brazil. The focal mechanisms of recent earthquakes (magnitude lower than 5 mb) were studied using waveform modeling. We stacked the record of several teleseismic stations ( delta > 30°) stacked groups of stations separated according to distance and azimuth. Every record was visually inspected and those with a good signal/noise ratio (SNR) were grouped in windows of ten degrees distance and stacked. The teleseismic P-wave of the stacked signals was modeled using the hudson96 program of Herrmann seismology package (Herrmann, 2002) and the consistency of focal mechanism with the first-motion was checked. Some events in central Brazil were recorded by closer stations (~ 1000 km) and the moment tensor was determined with the ISOLA code (Sokos & Zahradnik, 2008). With the focal mechanisms available in literature and those obtained in this work, we were able to identify some patterns: the central region shows a purely compressional pattern (E-W SHmax), which is predicted by regional theoretical models (Richardson & Coblentz, 1996 and the TD0 model of Lithgow & Bertelloni, 2004). Meanwhile in the Amazon we find an indication of SHmax oriented in the SE-NW direction, probably caused by the Caribbean plate interaction (Meijer, 1995). In northern coastal region, the compression rotates following the coastline, which indicates an important local component related to spreading effects at the continental/oceanic transition (Assumpção, 1998) and flexural stresses caused by sedimentary load in Amazon Fan. We determine the focal mechanism of several events in Brazil using different techniques according to the available data. The major difficulty is to

  13. Crime and Justice: Taking a Futuristic Approach.

    Science.gov (United States)

    Stephens, Gene; Tafoya, William L.

    1985-01-01

    How to apply futuristic approaches to crime and justice in an effort to prevent crime and deal more effectively with offenders is described. Planning, brainstorming, using the Delphi method, and opinion polling are discussed. (Author/RM)

  14. Ethics in Crimes and Misdemeanors

    Directory of Open Access Journals (Sweden)

    Róbert Haraldsson

    2014-03-01

    Full Text Available In this paper I employ Goodenough´s distinction between films that illustrate, are about and do philosophy to answer the question how we can identify the ethical content of movies. Crimes and Misdemeanors by Woody Allen is taken as an example but Mary L. Litch has argued that this movie illustrates ethical problems and is about ethics. On Litch´s reading the film reveals inherent flaws in utilitarianism and illustrates a Kantian insight as well as other ethical and religious theses. I argue, however, that Litch has relied on a too narrow method when identifying the ethics of Crimes and Misdemeanors. She focuses almost exclusively on dialogue and the general storyline. If we broaden our method to include sensitivity to filming, editing, camera angulation etc., we will not only realize a rather different ethical content in Crimes and Misdemeanors but also see how the movie stirkes close to home for most viewers of Hollywood movies.

  15. Manipulating the local light emission in organic light-emitting diodes by using patterned self-assembled monolayers

    NARCIS (Netherlands)

    Mathijssen, Simon G. J.; van Hal, Paul A.; van den Biggelaar, Ton J. M.; Smits, Edsger C. P.; de Boer, Bert; Kemerink, Martijn; Janssen, Rene A. J.; de Leeuw, Dago M.

    2008-01-01

    Patterned organic light-emitting diodes are fabricated by using microcontactDrinted self-assembled monolayers on a gold anode (see background figure). Molecules with dipole moments in opposite directions result in an increase or a decrease of the local work function (foreground picture), providing a

  16. Impact of deforestation on local precipitation patterns over the Da River basin, Vietnam

    Science.gov (United States)

    Anghileri, Daniela; Spartà, Daniele; Castelletti, Andrea; Boschetti, Mirco

    2014-05-01

    Change in land cover, e.g. from forest to bare soil, might severely impact the hydrological cycle at the river basin scale by altering the balance between rainfall and evaporation, ultimately affecting streamflow dynamics. These changes generally occur over decades, but they might be much more rapid in developing countries, where economic growth and growing population may cause abrupt changes in landscape and ecosystem. Detecting, analysing and modelling these changes is an essential step to design mitigation strategies and adaptation plans, balancing economic development and ecosystem protection. In this work we investigate the impact of land cover changes on the water cycle in the Da River basin, Vietnam. More precisely, the objective is to evaluate the interlink between deforestation and precipitation. The case study is particularly interesting because Vietnam is one of the world fastest growing economies and natural resources have been considerably exploited to support after-war development. Vietnam has the second highest rate of deforestation of primary forests in the world, second to only Nigeria (FAO 2005), with associated problems like abrupt change in run-off, erosion, sediment transport and flash floods. We performed land cover evaluation by combining literature information and Remote Sensing techniques, using Landsat images. We then analysed time series of precipitation observed on the period 1960-2011 in several stations located in the catchment area. We used multiple trend detection techniques, both state-of-the-art (e.g., Linear regression and Mann-Kendall) and novel trend detection techniques (Moving Average on Shifting Horizon), to investigate trends in seasonal pattern of precipitation. Results suggest that deforestation may induce a negative trend in the precipitation volume. The effect is mainly recognizable at the beginning and at the end of the monsoon season, when the local mechanisms of precipitation formation prevail over the large scale

  17. Cyber economic crime and commonwealth laws

    OpenAIRE

    Chambers-Jones, C.

    2012-01-01

    The aim of this paper is to discuss the legal issues affecting commonwealth countries in terms of virtual/cyber financial crime. Virtual financial crime or cyber financial crime is where acts of fraud money laundering etc… take place over the internet. Virtual financial crime is a present and real threat to global economies and creating an international agreement to prevent, detect and punish virtual criminals is an increasing problem for governments and law enforcement agencies. This paper i...

  18. articles: Links between rural development and crime

    OpenAIRE

    Terance J. Rephann

    1999-01-01

    Over the past few years, metropolitan crime has fallen in the United States while nonmetropolitan crime has continued to increase. This article examines nonmetropolitan crime during the period 1977-1995, and describes its characteristics and spatial dynamics. The article outlines eight categories of causal factors and investigates their role in nonmetropolitan county crime variation using regression analysis. This analysis shows that many variables commonly identified with "rural development"...

  19. The dynamics of poverty and crime

    Directory of Open Access Journals (Sweden)

    Haiyun Zhao

    2014-10-01

    Full Text Available Poverty and crime are two maladies that plague metropolitan areas. The economic theory of crime demonstrates a direct correlation between poverty and crime. The model considered in this study seeks to examine the dynamics of the poverty-crime system through stability analysis of a system of ordinary differential equations in order to identify cost-effective strategies to combat crime in metropolises.

  20. The car and crime: critical perspectives.

    OpenAIRE

    Groombridge, Nic

    1997-01-01

    This thesis critically examines the literature on joyriding, car crime, motor projects and masculinities. Fieldwork in motor projects combined with the methods of cultural studies locates car crime within a gendered car culture. Thus motor projects are seen to 'work' within that gendered car culture but a longer term solution to car crime is to be found in 'green' transport policies and changes in gender relations. Theoretically it recognises the reality of car crime and also the reality of t...

  1. Statistical physics of crime: A review

    Science.gov (United States)

    D'Orsogna, Maria R.; Perc, Matjaž

    2015-03-01

    Containing the spread of crime in urban societies remains a major challenge. Empirical evidence suggests that, if left unchecked, crimes may be recurrent and proliferate. On the other hand, eradicating a culture of crime may be difficult, especially under extreme social circumstances that impair the creation of a shared sense of social responsibility. Although our understanding of the mechanisms that drive the emergence and diffusion of crime is still incomplete, recent

  2. Crime Scenes as Augmented Reality

    DEFF Research Database (Denmark)

    Sandvik, Kjetil

    2010-01-01

    Using the concept of augmented reality, this article will investigate how places in various ways have become augmented by means of different mediatization strategies. Augmentation of reality implies an enhancement of the places' emotional character: a certain mood, atmosphere or narrative surplus......, physical damage: they are all readable and interpretable signs. As augmented reality the crime scene carries a narrative which at first is hidden and must be revealed. Due to the process of investigation and the detective's ability to reason and deduce, the crime scene as place is reconstructed as virtual...

  3. Religion in Scandinavian Crime Fiction

    DEFF Research Database (Denmark)

    Hansen, Kim Toft

    2011-01-01

    Firstly, I develop a theoretical framework for the discussion of religion i Scandinavian crime fiction where I consider theories of transgression and religion. Secondly, I run through five relatively popular examples of Scandinavian crime fiction to show how this genre trend works. Lastly, I...... connect this with what has been dubbed mediatized religion and a more general, philosophical explanation of why we see this development: The project of modernity is, as a result of cultural changes, at the moment transgressing its own epistemological boundaries opening up into what has been called...

  4. Crime Scenes as Augmented Reality

    DEFF Research Database (Denmark)

    Sandvik, Kjetil

    2010-01-01

    Using the concept of augmented reality, this article will investigate how places in various ways have become augmented by means of different mediatization strategies. Augmentation of reality implies an enhancement of the places' emotional character: a certain mood, atmosphere or narrative surplus......, physical damage: they are all readable and interpretable signs. As augmented reality the crime scene carries a narrative which at first is hidden and must be revealed. Due to the process of investigation and the detective's ability to reason and deduce, the crime scene as place is reconstructed as virtual...

  5. High on Crime Fiction and Detection

    DEFF Research Database (Denmark)

    Grodal, Torben Kragh

    2010-01-01

    how crime fiction activates strong salience (in some respects similar to the effect of dopamine-drugs like cocaine, Ritalin, and amphetamine) and discusses the role of social intelligence in crime fiction. It further contrasts the unempathic classical detector fictions with two subtypes of crime...

  6. New Campus Crime Prevention Resources Available

    Science.gov (United States)

    Campus Law Enforcement Journal, 2012

    2012-01-01

    The Campus Crime Prevention Committee has compiled a list of university and college crime prevention agencies and resources, which includes contact information, links to agency crime prevention web pages, and a list of resources they offer (i.e., brochures, guides, PowerPoint programs, videos, etc.) as well as a spreadsheet showing organizations…

  7. Policing Alcohol and Related Crimes on Campus

    Science.gov (United States)

    Allen, Andrea N.

    2013-01-01

    Research shows that college students drink alcohol frequently and heavily. This can compromise their health and well-being. Student drinking is also tied to crime. While prior work explores the nature and extent of crimes involving alcohol on campus, to date no study has examined how police handle these incidents or crime generally. This study…

  8. Gun Attitudes and Fear of Crime.

    Science.gov (United States)

    Heath, Linda; Weeks, Kyle; Murphy, Marie Mackay

    1997-01-01

    Using three studies, examined the relationship between attitudes toward guns and fear of crime. Findings indicate a connection between fear of crime and attitudes toward guns: people higher in fear of crime favored gun control. Results also established a relationship between stereotypical beliefs about gun victims and support for gun control. (RJM)

  9. Mass Media and the Fear of Crime.

    Science.gov (United States)

    Heath, Linda; Gilbert, Kevin

    1996-01-01

    Provides an overview of the research on mass media effects on perceptions of crime danger, personal fear of crime, and reactions to crime risk. Discovers that mass media effects involve a number of variables and moderators. These include audience characteristics, degree and type of coverage, and location. (MJP)

  10. Distinctive Characteristics of Sexual Orientation Bias Crimes

    Science.gov (United States)

    Stacey, Michele

    2011-01-01

    Despite increased attention in the area of hate crime research in the past 20 years, sexual orientation bias crimes have rarely been singled out for study. When these types of crimes are looked at, the studies are typically descriptive in nature. This article seeks to increase our knowledge of sexual orientation bias by answering the question:…

  11. Indicators of School Crime and Safety, 1999.

    Science.gov (United States)

    Kaufman, Phillip; Chen, Xianglei; Choy, Susan P.; Ruddy, Sally A.; Miller, Amanda K.; Chandler, Kathryn A.; Chapman, Christopher D.; Rand, Michael R.; Klaus, Patsy

    This report provides detailed statistical information on crime in schools. It is a companion document to the "Annual Report on School Safety: 1999," which offers an overview of the nature and scope of school crime. This report is organized as a series of indicators, with each indicator presenting data on a different aspect of school crime and…

  12. Aging and Aged in Organized Crime.

    Science.gov (United States)

    Amir, Menachem

    1989-01-01

    Examines problems of the aged in organized crime, basing discussion on organized crime bosses over age 60 operating in Italy, the United States, and Israel. Looks at problems stemming from normative system in organized crime, role of the aged, intergenerational problems, fears of the aged, excuses and justifications, standards of life, and…

  13. The effects of education on crime

    NARCIS (Netherlands)

    Groot, W.; van den Brink, H.M.

    2010-01-01

    In this article, we use a unique data set on criminal behaviour to analyse the effects of education on offences and crimes committed. The findings suggest that substantial savings on the social costs of crime can be obtained by investing in education. We find that the probability of committing crime

  14. Distinctive Characteristics of Sexual Orientation Bias Crimes

    Science.gov (United States)

    Stacey, Michele

    2011-01-01

    Despite increased attention in the area of hate crime research in the past 20 years, sexual orientation bias crimes have rarely been singled out for study. When these types of crimes are looked at, the studies are typically descriptive in nature. This article seeks to increase our knowledge of sexual orientation bias by answering the question:…

  15. Scaling up from epidemiology to biogeography: local infection patterns predict geographical distribution in fish parasites

    NARCIS (Netherlands)

    Poulin, R.; Blanar, C.A.; Thieltges, D.W.; Marcogliese, D.J.

    2012-01-01

    Aim We investigated how the spatial distribution of parasites, measured as either their geographical range size or their frequency of occurrence among localities, relates to either their average local abundance or the variance in their abundance among localities where they occur. Location We used da

  16. The relation between ethnic diversity and fear of crime: An analysis of police records and survey data in Belgian communities

    NARCIS (Netherlands)

    Hooghe, Marc; de Vroome, T.M.

    2016-01-01

    In the framework of intergroup threat theory, it is routinely assumed that the presence of immigrant groups in a local community could contribute to fear of crime among the majority population. This could be explained by a direct relation between ethnic diversity and some forms of crime, but it can

  17. How much should we trust crime statistics ? A comparison between UE and US

    OpenAIRE

    Buonanno, Paolo; Drago, Francesco; Galbiati, Roberto

    2014-01-01

    In this paper we take a cross-country perspective to study these issues. Our first objective is to investigate to which extent crime rates are declining in some major developed countries. Specifically, we look at the evolution of crime rates across the two sides of the Atlantic, namely United States and European countries between the 1970 and 2010. A crosscountry perspective is useful insofar we can learn if the apparent decline in crime rates is a global pattern. In doing this, we question t...

  18. 本土建筑创作与本土模式语言——来自乡土聚落的启示%Local Architectural Creation and Local Pattern Language:Inspiration From the Local Settlement

    Institute of Scientific and Technical Information of China (English)

    沈环艇; 王冬

    2012-01-01

    In this paper, we briefly describe C ?Alexander's pattern language theoretical system, and analyze the extraction principle of pattern language, study the relationship between Pattern Language and local settlement. We also investigate the possibility of local settlement patterns' modern transformation, and sum up the extraction principles and methods of local settlement pattern language. We extract local settlement pattern language from the local settlement of Yunnan Shilin Yuzu, and describe the Shilin local settlements, streets, residential areas, courtyards, rooms and detailed structure. In this project Shilin Fengye resort hotel, these local settlement pattern language of Yunnan Shilin Yuzu are reflected in the overall layout, spatial effects, buildings and detailed structure. So that the whole design is full of Shilin local customs.%该文简要介绍了C·亚历山大的模式语言理论体系,并分析了其模式语言提取原则;探讨了模式语言与乡土聚落之间的关系,分析乡土聚落模式语言现代转化的可能性,并总结出乡土聚落模式语言的提取原则及方法.我们对云南石林彝族乡土聚落进行研究并提取用于描述石林彝族乡土聚落、街巷、民居、院落、房间及细部构造的相关模式语言.在石林枫叶度假酒店规划设计项目的创作中,这些模式语言在项目的整体布局、空间效果、建筑单体及细部营造中都有体现,使整个设计充满了石林彝族乡土风情.

  19. Crime Solving Techniques: Training Bulletin.

    Science.gov (United States)

    Sands, Jack M.

    The document is a training bulletin for criminal investigators, explaining the use of probability, logic, lateral thinking, group problem solving, and psychological profiles as methods of solving crimes. One chpater of several pages is devoted to each of the five methods. The use of each method is explained; problems are presented for the user to…

  20. South African Crime Quarterly 59

    African Journals Online (AJOL)

    SA Crime QuArterly No. 59 • mArCh ... Section 77 of the Criminal Procedure Act 51 of 1977 deals with the treatment of persons who are unable to ..... resource considerations alone.36 .... membership of groups; as demonstrated in. President of ...

  1. How 'Digital' is Traditional Crime?

    NARCIS (Netherlands)

    Montoya, L.; Junger, Marianne; Hartel, Pieter H.

    Measuring how much cybercrime exists is typically done by first defining cybercrime and then quantifying how many cases fit that definition. The drawback is that definitions vary across countries and many cybercrimes are recorded as traditional crimes. An alternative is to keep traditional

  2. Preventing Crime through Selective Incapacitation

    NARCIS (Netherlands)

    Vollaard, B.A.

    2010-01-01

    Making the length of a prison sentence conditional on an individual’s offense history is shown to be a powerful way of preventing crime. Under a law adopted in the Netherlands in 2001, prolific offenders could be sentenced to a prison term that was some ten times longer than usual. We exploit quasi-

  3. Preventing Crime Through Selective Incapacitation

    NARCIS (Netherlands)

    Vollaard, B.A.

    2011-01-01

    Making the length of a prison sentence conditional on an individual’s offense history is shown to be a powerful way of preventing crime. Under a law adopted in the Netherlands in 2001, prolific offenders could be sentenced to a prison term that was some ten times longer than usual. We exploit quasi-

  4. Crime clocks and target performance maps

    CSIR Research Space (South Africa)

    Cooper, Anthony K

    1999-12-01

    Full Text Available ’ Crime Administration System (CAS), and they record over 80% of all crime reported in South Africa in near real time on CAS. Hence, at any time one can get a report of the crime situation for most of the country that is no more than a few hours old... in South Africa, which has led us to concentrate on the analysis of crime data aggregated to CAS Blocks or police-station precincts. However, SAPS are digitising manually several priority crimes on a daily basis in Johannesburg and we have helped them...

  5. CULTURAL APPROACHES IN CYBERPORN CRIME PREVENTION

    Directory of Open Access Journals (Sweden)

    Prima Angkupi

    2017-05-01

    Full Text Available Limitations of law in cyberporn law enforcement demands the need for non-penal approach as pre-ventive effort to eliminate causes of Cyberporn crimes. This approach includes crime prevention which aims to prevent a crime from being recurred. This approach can be implemented through situ-ational control by active involvement of cultural roles in community. However, it cannot be separat-ed from observing human life variations including childhood, youth, family, school, gender, peer group which play significant role during productive period. Those variations cane be taken as a theo-retical base for cyberporn crime prevention. Keywords: pornography, internet, crime prevention

  6. Texture analysis of collagen second-harmonic generation images based on local difference local binary pattern and wavelets differentiates human skin abnormal scars from normal scars.

    Science.gov (United States)

    Liu, Yao; Zhu, Xiaoqin; Huang, Zufang; Cai, Jianyong; Chen, Rong; Xiong, Shuyuan; Chen, Guannan; Zeng, Haishan

    2015-01-01

    Quantitative methods for noninvasive diagnosis of scars are a challenging issue in medicine. This work aims to implement a texture analysis method for quantitatively discriminating abnormal scars from normal scars based on second-harmonic generation (SHG) images. A local difference local binary pattern (LD-LBP) operator combined with a wavelet transform was explored to extract diagnosis features from scar SHG images that were related to the alteration in collagen morphology. Based on the quantitative parameters including the homogeneity, directional and coarse features in SHG images, the scar collagen SHG images were classified into normal or abnormal scars by a support vector machine classifier in a leave-one-out cross-validation procedure. Our experiments and data analyses demonstrated apparent differences between normal and abnormal scars in terms of their morphological structure of collagen. By comparing with gray level co-occurrence matrix, wavelet transform, and combined basic local binary pattern and wavelet transform with respect to the accuracy and receiver operating characteristic analysis, the method proposed herein was demonstrated to achieve higher accuracy and more reliable classification of SHG images. This result indicated that the extracted texture features with the proposed method were effective in the classification of scars. It could provide assistance for physicians in the diagnostic process.

  7. Age distribution patterns of human gene families: divergent for Gene Ontology categories and concordant between different subcellular localizations.

    Science.gov (United States)

    Liu, Gangbiao; Zou, Yangyun; Cheng, Qiqun; Zeng, Yanwu; Gu, Xun; Su, Zhixi

    2014-04-01

    The age distribution of gene duplication events within the human genome exhibits two waves of duplications along with an ancient component. However, because of functional constraint differences, genes in different functional categories might show dissimilar retention patterns after duplication. It is known that genes in some functional categories are highly duplicated in the early stage of vertebrate evolution. However, the correlations of the age distribution pattern of gene duplication between the different functional categories are still unknown. To investigate this issue, we developed a robust pipeline to date the gene duplication events in the human genome. We successfully estimated about three-quarters of the duplication events within the human genome, along with the age distribution pattern in each Gene Ontology (GO) slim category. We found that some GO slim categories show different distribution patterns when compared to the whole genome. Further hierarchical clustering of the GO slim functional categories enabled grouping into two main clusters. We found that human genes located in the duplicated copy number variant regions, whose duplicate genes have not been fixed in the human population, were mainly enriched in the groups with a high proportion of recently duplicated genes. Moreover, we used a phylogenetic tree-based method to date the age of duplications in three signaling-related gene superfamilies: transcription factors, protein kinases and G-protein coupled receptors. These superfamilies were expressed in different subcellular localizations. They showed a similar age distribution as the signaling-related GO slim categories. We also compared the differences between the age distributions of gene duplications in multiple subcellular localizations. We found that the distribution patterns of the major subcellular localizations were similar to that of the whole genome. This study revealed the whole picture of the evolution patterns of gene functional

  8. Defect Localization Capabilities of a Global Detection Scheme: Spatial Pattern Recognition Using Full-field Vibration Test Data in Plates

    Science.gov (United States)

    Saleeb, A. F.; Prabhu, M.; Arnold, S. M. (Technical Monitor)

    2002-01-01

    Recently, a conceptually simple approach, based on the notion of defect energy in material space has been developed and extensively studied (from the theoretical and computational standpoints). The present study focuses on its evaluation from the viewpoint of damage localization capabilities in case of two-dimensional plates; i.e., spatial pattern recognition on surfaces. To this end, two different experimental modal test results are utilized; i.e., (1) conventional modal testing using (white noise) excitation and accelerometer-type sensors and (2) pattern recognition using Electronic speckle pattern interferometry (ESPI), a full field method capable of analyzing the mechanical vibration of complex structures. Unlike the conventional modal testing technique (using contacting accelerometers), these emerging ESPI technologies operate in a non-contacting mode, can be used even under hazardous conditions with minimal or no presence of noise and can simultaneously provide measurements for both translations and rotations. Results obtained have clearly demonstrated the robustness and versatility of the global NDE scheme developed. The vectorial character of the indices used, which enabled the extraction of distinct patterns for localizing damages proved very useful. In the context of the targeted pattern recognition paradigm, two algorithms were developed for the interrogation of test measurements; i.e., intensity contour maps for the damaged index, and the associated defect energy vector field plots.

  9. Systematic review of youth crime prevention interventions

    DEFF Research Database (Denmark)

    Manuel, Celie; Jørgensen, Anne-Marie Klint

    knowledge about crime and prevention that can strengthen crime prevention professionals in their work. The collaboration consists of nine projects and focuses on burglaries and home robberies, violence and vandalism in public spaces as well as sexual assaults among youth.......This review centers on evaluations of youth crime prevention interventions published between 2008 and 2012. The aim of the review is to bring forward the newest information to supplement existing knowledge about crime preventive methods targeting youth. The review lists 56 studies, all targeting 12...... produced for TrygFonden and the Danish Crime Prevention Council TrygFonden and The Danish Crime Prevention Council have entered into an ambitious collaboration. The objective of this collaboration is to reduce crime and increase the feeling of security in Denmark by engaging citizens and creating new...

  10. Systematic review of youth crime prevention interventions

    DEFF Research Database (Denmark)

    Manuel, Celie; Jørgensen, Anne-Marie Klint

    This review centers on evaluations of youth crime prevention interventions published between 2008 and 2012. The aim of the review is to bring forward the newest information to supplement existing knowledge about crime preventive methods targeting youth. The review lists 56 studies, all targeting 12...... produced for TrygFonden and the Danish Crime Prevention Council TrygFonden and The Danish Crime Prevention Council have entered into an ambitious collaboration. The objective of this collaboration is to reduce crime and increase the feeling of security in Denmark by engaging citizens and creating new...... knowledge about crime and prevention that can strengthen crime prevention professionals in their work. The collaboration consists of nine projects and focuses on burglaries and home robberies, violence and vandalism in public spaces as well as sexual assaults among youth....

  11. Statistical physics of crime: A review

    CERN Document Server

    D'Orsogna, Maria R

    2014-01-01

    Containing the spreading of crime in urban societies remains a major challenge. Empirical evidence suggests that, left unchecked, crimes may be recurrent and proliferate. On the other hand, eradicating a culture of crime may be difficult, especially under extreme social circumstances that impair the creation of a shared sense of social responsibility. Although our understanding of the mechanisms that drive the emergence and diffusion of crime is still incomplete, recent research highlights applied mathematics and methods of statistical physics as valuable theoretical resources that may help us better understand criminal activity. We review different approaches aimed at modeling and improving our understanding of crime, focusing on the nucleation of crime hotspots using partial differential equations, self-exciting point process and agent-based modeling, adversarial evolutionary games, and the network science behind the formation of gangs and large-scale organized crime. We emphasize that statistical physics o...

  12. Una introduzione ai software per il crime mapping / Observations préliminaires sur les logiciels du mappage du crime / Some introductory notes on crime mapping software

    Directory of Open Access Journals (Sweden)

    Ummarino Alessandro

    2013-03-01

    Full Text Available RiassuntoIl Crime Mapping più che una disciplina a se stante non è altro che l’applicazione di tecniche di analisi statistico-geografica allo studio dei reati. Grazie all’utilizzo dei software GIS (Geographic Information System, all’esponenziale sviluppo dell’informatica e alla facile accessibilità al web, la produzione di mappe di qualità è ormai alla portata di un qualunque utente medio. La possibilità di applicare tali tecniche di analisi è offerta in modo efficace da software GIS commerciali e da software GIS free e open source. Chi si vuole avvicinare a questa disciplina, sia che intenda procedere con applicazioni di tipo tattico (pianificazione dei controlli, attività di prevenzione, investigazioni giudiziarie, etc. sia che intenda svolgere degli studi di tipo sociologico (criminalità, devianza, illegalità diffusa, percezione della sicurezza, etc., deve comunque acquisire una solida preparazione di base nell’utilizzo di programmi GIS prima di inferire generalizzazioni dai risultati utilizzando chiavi di lettura provenienti dalle scienze sociali. Il Crime Mapping può trovare una valida applicazione nell’ambito di una generale attività di polizia, soprattutto a livello locale, per la gestione delle risorse destinate alla sicurezza, per la programmazione dei servizi di polizia e soprattutto quale supporto di tipo tattico nell’ambito di attività mirate alla repressione e alla prevenzione di specifici atti criminosi e illeciti. Le mappage du crime n’est pas simplement une discipline en soi, mais une application de techniques d’analyse statistiques et géographiques à l’étude du crime. Grâce au développement exponentiel de l’informatique et à l’accessibilité du Web , tous les utilisateurs moyens ont désormais la possibilité de produire des cartes des crimes de qualité avec le logiciel SIG (système d'information géographique (GIS - Geographic Information System. Aujourd’hui la possibilité de se

  13. Spatial correlations, clustering and percolation-like transitions in homicide crimes

    CERN Document Server

    Alves, L G A; Mendes, R S; Ribeiro, H V

    2015-01-01

    The spatial dynamics of criminal activities has been recently studied through statistical physics methods; however, models and results have been focused on local scales (city level) and much less is known about these patterns at larger scales such as at a country level. Here we report on a characterization of the spatial dynamics of the homicide crimes along the Brazilian territory using data from all cities (~5000) in a period of more than thirty years. Our results show that the spatial correlation function in the per capita homicides decays exponentially with the distance between cities and that the characteristic correlation length displays an acute increasing trend in the latest years. We also investigate the formation of spatial clusters of cities via a percolation-like analysis, where clustering of cities and a phase transition-like behavior describing the size of the largest cluster as a function of a homicide threshold are observed. This transition-like behavior presents evolutive features characteriz...

  14. Converting the patterns of local heat flux via thermal illusion device

    Directory of Open Access Journals (Sweden)

    N. Q. Zhu

    2015-05-01

    Full Text Available Since the thermal conduction equation has form invariance under coordinate transformation, one can design thermal metamaterials with novel functions by tailoring materials’ thermal conductivities. In this work, we establish a different transformation theory, and propose a layered device with anisotropic thermal conductivities. The device is able to convert heat flux from parallel patterns into non-parallel patterns and vice versa. In the mean time, the heat flux pattern outside the device keeps undisturbed as if this device is absent. We perform finite-element simulations to confirm the converting behavior. This work paves a different way to manipulate the flow of heat at will.

  15. Planning safer suburbs: do changes in the built environment influence residents' perceptions of crime risk?

    Science.gov (United States)

    Foster, Sarah; Wood, Lisa; Christian, Hayley; Knuiman, Matthew; Giles-Corti, Billie

    2013-11-01

    A growing body of evidence has reiterated the negative impacts that crime and perceptions of insecurity can have on the health and wellbeing of local residents. Strategies that reduce residents' perceived crime risk may contribute to improved health outcomes; however interventions require a better understanding of the neighbourhood influences on residents perceptions of crime and safety. We examined the impact of changes in the objective built environment following relocation on changes in residents' perceived crime risk for participants in a longitudinal study of people moving to new neighbourhoods in Perth, Western Australia (n = 1159). They completed a questionnaire before moving to their new neighbourhood, and again 36 months after relocation. Individual-level objective environmental measures were generated at both time points using Geographic Information Systems, focussing on the characteristics that comprise a 'walkable neighbourhood'. Linear regression models examined the influence of objective environmental changes between the two environments on perceived crime risk, with progressive adjustment for other change variables (i.e., perceptions of the physical and social environment, reported crime). We found that increases in the proportion of land allocated to shopping/retail land-uses increased residents' perceived crime risk (β = 11.875, p = 0.001), and this relationship remained constant, despite controlling for other influences on perceived crime risk (β = 9.140, p = 0.004). The findings highlight an important paradox: that the neighbourhood characteristics known to enhance one outcome, such as walking, may negatively impact another. In this instance, the 'strangers' that retail destinations attract to a neighbourhood may be interpreted by locals as a threat to safety. Thus, in areas with more retail destinations, it is vital that other environmental strategies be employed to balance any negative effects that retail may have on residents' perceptions of

  16. Immigration, Regional Conditions, and Crime: Evidence from an Allocation Policy in Germany

    OpenAIRE

    Piopiunik, Mark; Ruhose, Jens

    2015-01-01

    After the collapse of the Soviet Union, more than 3 million people with German ancestors immigrated to Germany under a special law granting immediate citizenship. Exploiting the exogenous allocation of ethnic German immigrants by German authorities across regions upon arrival, we find that immigration significantly increases crime. The crime impact of immigration depends strongly on local labor market conditions, with strong impacts in regions with high unemployment. Similarly, we find substa...

  17. Mapping crime levels and court efficiency per magisterial district in South Africa

    CSIR Research Space (South Africa)

    Schmitz, Peter MU

    2002-12-01

    Full Text Available magisterial district. By mapping crime categories such as sexual offences, it is possible to identify magisterial districts with high occurrences of these crimes, and hence districts that need courts specializing in sexual offences. 1... function will be created. This function will assume responsibility for the ongoing monitoring and management of resources within the Department in order to ensure that justice at a local level is dispensed effectively and efficiently, through...

  18. Mapping crime levels and court efficiency per magisterial district in South Africa.

    CSIR Research Space (South Africa)

    Schmitz, Peter MU

    2002-12-01

    Full Text Available magisterial district. By mapping crime categories such as sexual offences, it is possible to identify magisterial districts with high occurrences of these crimes, and hence districts that need courts specializing in sexual offences. 1... function will be created. This function will assume responsibility for the ongoing monitoring and management of resources within the Department in order to ensure that justice at a local level is dispensed effectively and efficiently, through...

  19. Efficient face recognition using local derivative pattern and shifted phase-encoded fringe-adjusted joint transform correlation

    Science.gov (United States)

    Biswas, Bikram K.; Alam, Mohammad S.; Chowdhury, Suparna

    2016-04-01

    An improved shifted phase-encoded fringe-adjusted joint transform correlation technique is proposed in this paper for face recognition which can accommodate the detrimental effects of noise, illumination, and other 3D distortions such as expression and rotation variations. This technique utilizes a third order local derivative pattern operator (LDP3) followed by a shifted phase-encoded fringe-adjusted joint transform correlation (SPFJTC) operation. The local derivative pattern operator ensures better facial feature extraction in a variable environment while the SPFJTC yields robust correlation output for the desired signals. The performance of the proposed method is determined by using the Yale Face Database, Yale Face Database B, and Georgia Institute of Technology Face Database. This technique has been found to yield better face recognition rate compared to alternate JTC based techniques.

  20. E-Beam Patterned Gold Nanodot Arrays on Optical Fiber Tips for Localized Surface Plasmon Resonance Biochemical Sensing

    Directory of Open Access Journals (Sweden)

    Yongbin Lin

    2010-10-01

    Full Text Available Electron beam lithography (EBL was used to directly pattern periodic gold nanodot arrays on optical fiber tips. Localized surface plasmon resonance of the E-beam patterned gold nanodot arrays on optical fiber tips was utilized for biochemical sensing. The advantage of the optical fiber based localized surface plasmon resonance (LSPR sensors is the convenience to work with and work in harsh environments. An optical fiber tip LSPR refractive index sensor of 196 nm per refractive index unit (RIU sensitivity has been demonstrated. The affinity sensing property of the fiber tip sensor was demonstrated using biotin/streptavidin as the receptor/analyte. The detection limit for streptavidin was determined to be 6 pM.

  1. Localized stationary and traveling reaction-diffusion patterns in a two-layer A +B → oscillator system

    Science.gov (United States)

    Budroni, M. A.; De Wit, A.

    2016-06-01

    When two solutions containing separate reactants A and B of an oscillating reaction are put in contact in a gel, localized spatiotemporal patterns can develop around the contact zone thanks to the interplay of reaction and diffusion processes. Using the Brusselator model, we explore analytically the deployment in space and time of the bifurcation diagram of such an A +B → oscillator system. We provide a parametric classification of possible instabilities as a function of the ratio of the initial reactant concentrations and of the reaction intermediate species diffusion coefficients. Related one-dimensional reaction-diffusion dynamics are studied numerically. We find that the system can spatially localize waves and Turing patterns as well as induce more complex dynamics such as zigzag spatiotemporal waves when Hopf and Turing modes interact.

  2. Understanding temporal patterns and characteristics of air quality in Beijing: A local and regional perspective

    Science.gov (United States)

    Chen, Ziyue; Xu, Bing; Cai, Jun; Gao, Bingbo

    2016-02-01

    Sources, characteristics and seasonal variation of airborne pollutants in China, especially in Beijing, have been massively examined. However, most studies analyze local air quality from an isolated perspective and interactions between local and regional air quality have not been fully considered. This research attempts to evaluate Beijing air quality at the local and regional scale. The weighted cross correlogram spectral matching (CCSM) and convergent cross mapping (CCM) method are employed for similarity and causality analysis respectively. At the local scale, the air quality in Beijing experiences frequent and sudden change, yet changes smoothly across a day's time. At the regional scale, the air quality in Beijing and four neighboring cities is compared. The result suggests that although air quality in Beijing and neighboring cities is of some differences, strong bidirectional coupling exists between the local and regional air quality. The research indicates that air quality in Beijing is better than the general situation in this region, and Tianjin should be a good comparative site for monitoring and evaluating air quality in Beijing. This research provides a feasible methodology for comprehensive analysis of local air quality at multiple scales, which may shed some lights on the forthcoming implementation of local air quality evaluation.

  3. Development of car theft crime index in peninsular Malaysia

    Science.gov (United States)

    Zulkifli, Malina; Ismail, Noriszura; Razali, Ahmad Mahir; Kasim, Maznah Mat

    2014-06-01

    Vehicle theft is classified as property crime and is considered as the most frequently reported crime in Malaysia. The rising number of vehicle thefts requires proper control by relevant authorities, especially through planning and implementation of strategic and effective measures. Nevertheless, the effort to control this crime would be much easier if there is an indication or index which is more specific to vehicle theft. This study aims to build an index crime which is specific to vehicle theft. The development of vehicle theft index proposed in this study requires three main steps; the first involves identification of criteria related to vehicle theft, the second requires calculation of degrees of importance, or weighting criteria, which involves application of correlation and entropy methods, and the final involves building of vehicle theft index using method of linear combination, or weighted arithmetic average. The results show that the two methods used for determining weights of vehicle theft index are similar. Information generated from the results can be used as a primary source for local authorities to plan strategies for reduction of vehicle theft and for insurance companies to determine premium rates of automobile insurance.

  4. Local-scale patterns of genetic variability, outcrossing, and spatial structure in natural stands of Arabidopsis thaliana.

    Directory of Open Access Journals (Sweden)

    Kirsten Bomblies

    2010-03-01

    Full Text Available As Arabidopsis thaliana is increasingly employed in evolutionary and ecological studies, it is essential to understand patterns of natural genetic variation and the forces that shape them. Previous work focusing mostly on global and regional scales has demonstrated the importance of historical events such as long-distance migration and colonization. Far less is known about the role of contemporary factors or environmental heterogeneity in generating diversity patterns at local scales. We sampled 1,005 individuals from 77 closely spaced stands in diverse settings around Tübingen, Germany. A set of 436 SNP markers was used to characterize genome-wide patterns of relatedness and recombination. Neighboring genotypes often shared mosaic blocks of alternating marker identity and divergence. We detected recent outcrossing as well as stretches of residual heterozygosity in largely homozygous recombinants. As has been observed for several other selfing species, there was considerable heterogeneity among sites in diversity and outcrossing, with rural stands exhibiting greater diversity and heterozygosity than urban stands. Fine-scale spatial structure was evident as well. Within stands, spatial structure correlated negatively with observed heterozygosity, suggesting that the high homozygosity of natural A. thaliana may be partially attributable to nearest-neighbor mating of related individuals. The large number of markers and extensive local sampling employed here afforded unusual power to characterize local genetic patterns. Contemporary processes such as ongoing outcrossing play an important role in determining distribution of genetic diversity at this scale. Local "outcrossing hotspots" appear to reshuffle genetic information at surprising rates, while other stands contribute comparatively little. Our findings have important implications for sampling and interpreting diversity among A. thaliana accessions.

  5. Long-Term Outcome of Definitive Radiotherapy for Early Glottic Cancer: Prognostic Factors and Patterns of Local Failure

    OpenAIRE

    Lim, Yu Jin; Wu, Hong-Gyun; Kwon, Tack-Kyun; Hah, J. Hun; Sung, Myung-Whun; Kim, Kwang Hyun; Park, Charn Il

    2015-01-01

    Purpose This study evaluates the long-term results of definitive radiotherapy (RT) for early glottic cancer. Clinical and treatment factors related to local control and patterns of failure are analyzed. Materials and Methods We retrospectively reviewed 222 patients with T1-2N0 squamous cell carcinoma of the glottic larynx treated with definitive RT from 1981 to 2010. None of the patients received elective nodal RT or combined chemotherapy. The median total RT dose was 66 Gy. The daily fractio...

  6. Dal computer crime al computer-related crime

    Directory of Open Access Journals (Sweden)

    Antonio Apruzzese

    2007-04-01

    Full Text Available Nowadays, Digital Identity Theft has become one of the most lucrative illegitimate business. Also known as “phishing”, it consists in unauthorized access to an individual’s personal financial data aiming to capture information relative to on line banking and on line financial services. At the beginning people were the victims of such scams, currently the attention is directed to computer networks. “Pharming” and “keylogging” are some of the latest and utmost sophisticated data processing techniques used by computer crime fraudsters. Latest entries are the “botnets”, herds of infected machines, usually managed by one sole command centre which can determine serious damages to network systems. Botnets have made large scale identity theft much simpler to realize. Organized crime is becoming more and more involved in this new crime world that can easily assure huge profits. The Italian State Police, in order to respond more effectively to this new rising challenge, has created, with the Postal and Communication Police, an agency highly specialized in combating such new phenomenon

  7. The relationship of crime and oil development in the coastal regions of Louisiana

    Science.gov (United States)

    Luthra, Asha D.

    This project examines the relationship between patterns of crime and the development of the oil and gas extraction industry in the coastal regions of Louisiana. The suggestion of a link between these phenomena has often been made, but little systematic research has been conducted to determine if there is indeed a crime-oil development nexus. Limited previous research has focused primarily on the issue of "boom and bust" cycles on some forms of deviant behavior, but the data and the methods used were inadequate, and thus, the resulting conclusions were often misleading or possibly erroneous. During the course of this project, a comprehensive database is constructed that facilitates a longitudinal analysis of concomitant variation in crime patterns and oil extraction activity. Annual crime data are obtained at the parish and county level for all years beginning in 1974 and merged with corresponding social and economic data. This dataset allows for a multivariate pooled time series analysis, with adequate controls, to determine the degree of influence between oil activity and crime patterns. The results from the analysis suggest that changes in oil activity and high levels of labor market involvement in the offshore oil industry are not strongly associated with community disruption in the form of crime. The only statistically significant effects due to changes in oil activity are decreased levels of homicide and aggravated assault. Oil development is not associated with any other crime in the analysis despite accounting for the boom and bust cycles of the oil industry over a 25 year period for 12 parishes that are highly involved in the industry. As the industry becomes more active and undergoes an increased labor demand, incidents of homicide and assault decline in the community. This finding does not support some previous boomtown model research that argues that energy development causes higher rates of social disruption, including higher crime rates (Seydlitz et al

  8. local

    Directory of Open Access Journals (Sweden)

    Abílio Amiguinho

    2005-01-01

    Full Text Available The process of socio-educational territorialisation in rural contexts is the topic of this text. The theme corresponds to a challenge to address it having as main axis of discussion either the problem of social exclusion or that of local development. The reasons to locate the discussion in this last field of analysis are discussed in the first part of the text. Theoretical and political reasons are there articulated because the question is about projects whose intentions and practices call for the political both in the theoretical debate and in the choices that anticipate intervention. From research conducted for several years, I use contributions that aim at discuss and enlighten how school can be a potential locus of local development. Its identification and recognition as local institution (either because of those that work and live in it or because of those that act in the surrounding context are crucial steps to progressively constitute school as a partner for development. The promotion of the local values and roots, the reconstruction of socio-personal and local identities, the production of sociabilities and the equation and solution of shared problems were the dimensions of a socio-educative intervention, markedly globalising. This scenario, as it is argued, was also, intentionally, one of transformation and of deliberate change of school and of the administration of the educative territoires.

  9. Tourism and Crime: Evidence from the Philippines

    Directory of Open Access Journals (Sweden)

    Rosalina Palanca-Tan

    2015-12-01

    Full Text Available Using panel data gathered from 16 regions of the Philippines for the period 2009–11, this paper investigates the relationship between tourism and crime. The findings of the study show that the relation between tourism and crime may largely depend on the characteristics of visitors and the types of crime. For all types of crime and their aggregate, no significant correlation between the crime rate (defined as the number of crime cases divided by population and total tourist arrivals is found. However, a statistically significant positive relation is found between foreign tourism and robbery and theft cases as well as between overseas Filipino tourism and robbery. On the other hand, domestic tourism is not significantly correlated with any of the four types of crimes. These results, together with a strong evidence of the negative relationship between crime and the crime clearance efficiency, present much opportunity for policy intervention in order to minimize the crime externality of the country’s tourism-led development strategy.

  10. The role of shape-from-shading information in the perception of local and global form in Glass patterns.

    Science.gov (United States)

    Khuu, Sieu K; Moreland, Amy; Phu, Jack

    2011-06-28

    Three-dimensional (3D) shape can be inferred from the surface shading gradient of objects. Using Glass patterns, we investigated the importance of shape-from-shading information to the perception of global form. We examined whether different 3D shapes inferred from shading affect the extraction of local dipole orientations (local analysis) and the integration of dipoles in the perception of Glass structure (global analysis). In Experiment 1, we showed that incongruence in shading between partner dots prevents the recovery of the dipole orientation: partner dots with different 3D shapes are not paired to recover the dipole orientation. However, when incongruent "bipartite" partner dots (that have the same contrast polarity as shaded dots, but are two-dimensional) were used, the visual system was able to extract the local dipole orientation and detect the global pattern (Experiment 2). In Experiment 3, we showed that additional noise dipoles affect the detection of Glass structure regardless of the 3D shape difference between signal and additional noise dipoles. This demonstrates that the visual system combines different oriented 3D dipoles to detect Glass structure. Our findings show that shape-from-shading information impacts on the ability to detect form structure but in different ways at local and global stages of processing.

  11. Weather patterns as a downscaling tool - evaluating their skill in stratifying local climate variables

    Science.gov (United States)

    Murawski, Aline; Bürger, Gerd; Vorogushyn, Sergiy; Merz, Bruno

    2016-04-01

    The use of a weather pattern based approach for downscaling of coarse, gridded atmospheric data, as usually obtained from the output of general circulation models (GCM), allows for investigating the impact of anthropogenic greenhouse gas emissions on fluxes and state variables of the hydrological cycle such as e.g. on runoff in large river catchments. Here we aim at attributing changes in high flows in the Rhine catchment to anthropogenic climate change. Therefore we run an objective classification scheme (simulated annealing and diversified randomisation - SANDRA, available from the cost733 classification software) on ERA20C reanalyses data and apply the established classification to GCMs from the CMIP5 project. After deriving weather pattern time series from GCM runs using forcing from all greenhouse gases (All-Hist) and using natural greenhouse gas forcing only (Nat-Hist), a weather generator will be employed to obtain climate data time series for the hydrological model. The parameters of the weather pattern classification (i.e. spatial extent, number of patterns, classification variables) need to be selected in a way that allows for good stratification of the meteorological variables that are of interest for the hydrological modelling. We evaluate the skill of the classification in stratifying meteorological data using a multi-variable approach. This allows for estimating the stratification skill for all meteorological variables together, not separately as usually done in existing similar work. The advantage of the multi-variable approach is to properly account for situations where e.g. two patterns are associated with similar mean daily temperature, but one pattern is dry while the other one is related to considerable amounts of precipitation. Thus, the separation of these two patterns would not be justified when considering temperature only, but is perfectly reasonable when accounting for precipitation as well. Besides that, the weather patterns derived from

  12. Exploring paradigms of crime reduction: An empirical longitudinal study

    DEFF Research Database (Denmark)

    Soothill, University of Lancaster, Keith; Christoffersen, Mogens; Azhar, Hussain

    Using Danish registers for a 1980 birth cohort of 29,944 males with parental information and following up these cases for 24 years, the study considers four paradigms of crime reduction (parental child-rearing, structural factors around adolescence, locality and individual resources). Focusing...... more widespread benefits, but the assumed causal links need to be further explored. The use of population registers, under controlled conditions, provides an important window on criminal careers....

  13. AGE CLASSIFICATION BASED ON FEATURES EXTRACTED FROM THIRD ORDER NEIGHBORHOOD LOCAL BINARY PATTERN

    Directory of Open Access Journals (Sweden)

    Pullela S.V.V.S.R. Kumar

    2014-11-01

    Full Text Available The present paper extended the work carried out by Kumar et. al. [10] on Third order Neighbourhood LBP (TN-LBP and derived an approach that estimates pattern trends on the outer cell of TN-LBP. The present paper observed and noted that the TN-LBP forms two types of V-patterns on the outer cell of TN-LBP i.e. Outer Right V Patterns (ORVP and Outer Left V Patterns (OLVP. The ORLP and OLVP of TN-LBP consist of 5 pixels each. The present paper derived Grey Level Co-occurrence Matrix (GLCM features based on LBP values of ORVP and OLVP. This GLCM is named as ORLVP-GLCM (Outer cell Right and Left V-Patterns of GLCM and on this four features are evaluated to classify human into child (0 to 12 years, young (13 to 30 years, middle aged (31 to 50 years and senior adult (above 60 years. The proposed method is experimented on FGNET, GOOGLE and Scanned facial images and the results are compared with the existing methods. The results demonstrate the efficiency of the proposed method over the existing methods.

  14. Neighborhood Effects on Youth Crime

    DEFF Research Database (Denmark)

    Rotger, Gabriel Pons; Galster, George Charles

    We investigate the degree to which youth (ages 14-29) criminal offenses are influenced by neighbors, identifying causal effects with a natural experimental allocation of social housing in Copenhagen. We find that youth exposed to a one percentage point higher concentration of neighbors with drug...... criminal records are 6% more likely to be charged for criminal offenses (both drug and property crimes), and this impact manifests itself after six months of exposure. This neighborhood effect is stronger for previous offenders, and does not lead to criminal partnerships. Our exploration of alternative...... mechanisms suggests youth interaction in proximate residential context with older adults with drug crime experience as the most plausible source of neighborhood effects....

  15. 75 FR 20889 - National Crime Victims' Rights Week, 2010

    Science.gov (United States)

    2010-04-21

    .... Though crime rates have declined in recent years, crime and its devastating effects still require our... Documents#0;#0; ] Proclamation 8499 of April 16, 2010 National Crime Victims' Rights Week, 2010 By the.... This week, we renew our commitment to supporting crime victims and preventing crimes that threaten...

  16. Is Polish Crime Economically Rational?

    OpenAIRE

    2010-01-01

    This study investigates whether crime in Poland is governed by economic rationality. An economic model of rational behavior claims that the propensity to commit criminal activi-ties is negatively related to deterrence. The potential presence of higher risk profiles for certain population segments is investigated. Panel data aggregated to sub-regional levels and observed annually for the years 2003 to 2005 are applied. Controls for endogeneity among criminal activity level and deterrence, intr...

  17. Patrones asociados a la conducta de desplazamiento local en Phymactis clematis Drayton (Anthozoa: Actiniidae Patterns of local movement behavior in Phymactis clematis Drayton (Anthozoa: Actiniidae

    Directory of Open Access Journals (Sweden)

    MARCELO M. RIVADENEIRA

    2001-12-01

    species of sea anemone along the South American coast. Likewise other sea anemone species, the adults of the P. clematis would have an active ability to make local movements. However, these have not been properly described, and causal factors are unknown. In this work we try to describe some of the basic patterns associated to the local movement behavior in P. clematis, assessed indirectly from the presence of bare rock halos around individuals in two rocky intertidal sites in the coast of northern Chile (Cavancha and Colorado Chico. Movements were more frequent and had a higher intensity at Colorado Chico, where over 50 % of individuals showed movements, although they were mainly lower than 60 mm in length. At Colorado Chico, movements would occur in individuals larger than 40 mm of pedal diameter, whereas their intensity would decrease with body size. We discussed that causes of higher movement activity at Colorado Chico could be associated to the higher abundance and lower inter-individual spacing, which would produce physical interference among individuals. In this way, we suggested that the patterns associated to the individual's body size would arise secondarily, being dependent on the levels of local abundance. Despite local movements of P. clematis at Colorado Chico occurred at a scale of a few centimeters, they could be affecting significantly the inter-individual spacing, increasing the average nearest neighbor distance. We argue that local movements could be an effective mechanism reducing the intraspecific competition in P. clematis

  18. School Starting Age and Crime

    DEFF Research Database (Denmark)

    Landersø, Rasmus; Nielsen, Helena Skyt; Simonsen, Marianne

    This paper investigates the effects of school starting age on crime while relying on variation in school starting age induced by administrative rules; we exploit that Danish children typically start first grade in the calendar year they turn seven, which gives rise to a discontinuity in children’...... who benefit most from being old-for-grade are those with high latent abilities whereas those with low latent ability seem to be unaffected by being old-for-grade in school.......This paper investigates the effects of school starting age on crime while relying on variation in school starting age induced by administrative rules; we exploit that Danish children typically start first grade in the calendar year they turn seven, which gives rise to a discontinuity in children......’s school starting age. Analyses are carried out using register-based Danish data. We find that higher age at school start lowers the propensity to commit crime, but that this reduction is caused by incapacitation while human capital accumulation is unaffected. Importantly, we also find that the individuals...

  19. The hidden crime: human trafficking.

    Science.gov (United States)

    Clause, Kristen J; Lawler, Kate Byrnes

    2013-01-01

    As the primary contact in the health care system, nurses can play a role in combating this crime and assisting the victims. Assessment for abuse, neglect, trauma, recurrent sexually transmitted infections (STIs) and fear of a controlling partner is critical. Following up on "red flags" and understanding methods of safe questioning can make the difference between slavery and recovery for victims. Nurses must also know the professional referrals in their areas once a potential victim has been identified. This may be a very dangerous undertaking and must be handled by experienced personnel. Referrals to forensic nurses or physicians, domestic violence professionals or law enforcement may be indicated. Initially, a nurse may want to consult with the agency social worker for guidance. Human trafficking is a human rights crime. Unfortunately, it is more prevalent in all types of communities than most people suspect. Nurses can be heroes to the victims through understanding of this crime and vigilance in the assessment and care of all people they encounter in their practices.

  20. Environmental criminal offences - victimless crimes?

    Directory of Open Access Journals (Sweden)

    Batrićević Ana

    2013-01-01

    Full Text Available Ecological criminal offences, the most serious forms of harming and threatening of environment or its integral parts, represents a global phenomenon of great social hazard. They are often connected with organized transnational criminality, criminal offences against life and bodily integrity, corruption, tax evasion and discrimination. Disputable nature of the subject these incriminations protect imposes a question: “Who are the victims of ecological criminal offences - individuals, social groups, entire society or environment as value per se?” Perceiving ecological criminal offences as victimless crimes diminishes their importance and the circle of subjects interested to unveil, prove, prevent, suppress and impose punishments for these offences. Therefore, the author discusses the sustainability of the traditional, anthropocentrically defined term of victim in the context of biocentrism and its growing influence on criminal law, criminology and victimology. Attempting to determine whether ecological criminal offences represent victimless crimes, the author analyzes their term, characteristics and significance. Starting from the traditional definition of victim, she analyzes the term of “victimless crimes“ and its (unsustainability in the context of environmental crime, focusing on its most frequent victims and the necessity of their protection.

  1. The hidden crime: human trafficking.

    Science.gov (United States)

    Clause, Kristen J; Lawler, Kate Byrnes

    2013-01-01

    As the primary contact in the health care system, nurses can play a role in combating this crime and assisting the victims. Assessment for abuse, neglect, trauma, recurrent sexually transmitted infections (STIs) and fear of a controlling partner is critical. Following up on "red flags" and understanding methods of safe questioning can make the difference between slavery and recovery for victims. Nurses must also know the professional referrals in their areas once a potential victim has been identified. This may be a very dangerous undertaking and must be handled by experienced personnel. Referrals to forensic nurses or physicians, domestic violence professionals or law enforcement may be indicated. Initially, a nurse may want to consult with the agency social worker for guidance. Human trafficking is a human rights crime. Unfortunately, it is more prevalent in all types of communities than most people suspect. Nurses can be heroes to the victims through understanding of this crime and vigilance in the assessment and care of all people they encounter in their practices. To learn more or to help with this cause, visit the Somaly Mam Foundation at www.somaly.org or the U.S. Department of State at www. state.gov.

  2. ICT and the location of call centres: regional and local patterns

    NARCIS (Netherlands)

    Bruinsma, Frank; Rietveld, Piet; Beekman, Michiel

    2004-01-01

    One of the sectors that gained most of the boost in ICT developments is the call centres sector. The focus in this paper is on spatial diffusion patterns of call centres in the Netherlands. The number of call centres has increased rapidly in the last decade and it seems that impacts of call ce

  3. Patterned electrospun nanofiber matrices via localized dissolution: potential for guided tissue formation.

    Science.gov (United States)

    Jia, Chao; Yu, Dou; Lamarre, Marven; Leopold, Philip L; Teng, Yang D; Wang, Hongjun

    2014-12-23

    With the assistance of an ink-jet printer, solvent (the "ink") can be controllably and reproducibly printed onto electrospun nanofiber meshes (the "paper") to generate various micropatterns and subsequently guide distinct cellular organization and phenotype expression. In combination with the nanofiber-assisted layer-by-layer cell assembly, the patterned electrospun meshes will define an instructive microenvironment for guided tissue formation.

  4. Temperature and hen harrier productivity : from local mechanisms to geographical patterns

    NARCIS (Netherlands)

    Redpath, SM; Arroyo, BE; Etheridge, B; Leckie, F; Bouwman, K; Thirgood, SJ

    2002-01-01

    Climate is an important factor limiting demography and distribution patterns in many organisms. For species with a broad geographical distribution, the mechanism by which climate influences demography is likely to vary dramatically from one end of the range to the other. In this paper we first asses

  5. Temperature and hen harrier productivity : from local mechanisms to geographical patterns

    NARCIS (Netherlands)

    Redpath, SM; Arroyo, BE; Etheridge, B; Leckie, F; Bouwman, K; Thirgood, SJ

    2002-01-01

    Climate is an important factor limiting demography and distribution patterns in many organisms. For species with a broad geographical distribution, the mechanism by which climate influences demography is likely to vary dramatically from one end of the range to the other. In this paper we first

  6. A Proposed Solution for Crime Reporting and Crime Updates on Maps in Android Mobile Application

    National Research Council Canada - National Science Library

    Syed Mujtaba Raza; Leelavathi Rajamanickam

    2015-01-01

      The purpose of this research paper is to propose and develop an android mobile application for the general public awareness of the crime situation of their area and to provide them crime locations on the map...

  7. Crime Data, crimes, Published in 2008, 1:24000 (1in=2000ft) scale, Tooele County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Crime Data dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Other information as of 2008. It is described as 'crimes'. Data by...

  8. Fear of Crime in South Korea

    Directory of Open Access Journals (Sweden)

    Ben Brown

    2016-12-01

    Full Text Available This study provides analyses of data on crime-associated trepidation obtained from surveys administered to college students in South Korea. The survey contained questions about, and the analyses distinguished between, offense-specific fears (fear of burglary and fear of home invasion, perceived risk of victimization (day and night, and crime avoidance behaviors (avoidance of nocturnal activity and avoidance of particular areas. Regression analyses of the data show that victimization was not consistently associated with crime-associated trepidation, while gender significantly impacted all measures of concern about crime. Women were more likely than men to report being fearful, perceiving risk, and crime avoidance behaviors. Building upon prior scholarship (for example, Madriz 1997; Stanko 1989 and considering the social context in which the data were gathered, it is herein suggested that the gendered variation in crime-associated anxiety may reflect patriarchal power relations. The methodological and policy implications of the study are also discussed.

  9. What Explains Criminal Violence in Mexico City? A Test of Two Theories of Crime

    Directory of Open Access Journals (Sweden)

    Carlos Vilalta

    2016-02-01

    Full Text Available There are competing theories of what drives crime in cities and neighbourhoods. Two widely cited theoretical approaches focused on social disorganization and institutional anomie propose different explanations for the causes and dynamics of criminality. Yet these theories are seldom empirically tested, much less acknowledged, outside of North America and Western Europe. This article considers their applicability in Mexico’s capital, a sprawling metropolis of more than 20 million people. The authors administer spatial and general statistical tests to explain the geographical patterns of crime rates across multiple forms of criminality. The assessment demonstrates that both theories accurately predict the spatial distribution of crime. The article concludes with a host of policy conclusions, emphasizing social crime prevention over more traditional law and order measures. and consolidating families, parents and childcare.

  10. Fuel Crime Conceptualization through Specialization of Ontology for Investigation Management System

    Science.gov (United States)

    Cybulka, Jolanta

    We undertook the task of building the conceptual model of a particular economic offense, called "a fuel crime". This model is thought of as a part of a larger conceptualization, which comprises consensual semantics underlying the knowledge base of a system, aimed at supporting the teamwork of investigators of economic crimes. Because such a knowledge-based system represents a perspective on economic crimes, it should be carefully modeled. This can be done with the help of an expressive enough ontology. To achieve our goal we use the constructive descriptions and situations (c.DnS) design pattern, which enables us to construct an extensible, layered ontology in a top-down manner: c.DnS top layer is specialized by the reference ontology for investigation management system, that in turn, is specialized by the ontology of the fuel crime.

  11. The temporal dynamics of global-to-local feedback in the formation of hierarchical motion patterns: psychophysics and computational simulations.

    Science.gov (United States)

    Hock, Howard S; Schöner, Gregor; Brownlow, Stacey; Taler, Dana

    2011-05-01

    Four motion quartets, each ambiguous with respect to the perception of parallel-path horizontal or vertical motion, were arranged in a diamond configuration. Both global parallel-path motion (the same motion axis for all the quartets), which is typical for multiquartet stimuli, and global rotational rocking are perceived. Experiment 1 indicated that rotational rocking is established at different levels of processing. Globally, larger displacements of each quartet's elements increase the angle of rotation and, thereby, the perception of rotational rocking. Locally, larger displacements have the opposite effect, weakening motion percepts. Experiment 2 showed that global-to-local feedback affects the local perception of rotation-consistent versus rotation-inconsistent motion directions. Experiment 3 provided evidence for hysteresis effects indicative of competition between global rotational rocking and parallel-path motion. The experimental results were simulated by a two-level dynamical model incorporating global-to-local feedback, with recurrent feedforward/feedback loops creating detection instabilities that amplify activation at both global and local levels of the rotational-rocking pattern.

  12. Journeys to Crime: Assessing the Effects of a Light Rail Line on Crime in the Neighborhoods

    OpenAIRE

    Liggett, Robin; Loukaitou-Sideris, Anastasia; Iseki, Hiroyuki

    2003-01-01

    The implementation of new transit lines is some times dogged by concerns that such lines may increase crime rates in station neighborhoods. Affluent communities have often complained that transit lines transport crime to the suburbs. This study focuses on the Green Line transit system in Los Angeles and examines its effects on crime in the adjacent areas. The Green Line light rail system passes through some high-crime inner city neighborhoods and terminates at its western end in affluent subu...

  13. Determinants of Off-Farm Income and Its Local Patterns: A Spatial Microsimulation of Dutch Farmers

    Science.gov (United States)

    van Leeuwen, Eveline; Dekkers, Jasper

    2013-01-01

    Apart from their contribution to the local economy in terms of input, output and employment, farmers also play a major role in shaping and maintaining our (natural) environment and landscapes. However, with the (planned) decrease in agricultural subsidies, these activities are at risk. For that reason, it would be useful when farmers could benefit…

  14. Determinants of Off-Farm Income and Its Local Patterns: A Spatial Microsimulation of Dutch Farmers

    Science.gov (United States)

    van Leeuwen, Eveline; Dekkers, Jasper

    2013-01-01

    Apart from their contribution to the local economy in terms of input, output and employment, farmers also play a major role in shaping and maintaining our (natural) environment and landscapes. However, with the (planned) decrease in agricultural subsidies, these activities are at risk. For that reason, it would be useful when farmers could benefit…

  15. Imprisonment and the crime rate in Ireland

    OpenAIRE

    Eoin O’Sullivan; Ian O’Donnell

    2003-01-01

    Between 1995 and 1999, the number of indictable crimes recorded in Ireland dropped by 21 per cent and the daily average prison population rose by 33 per cent. The Government has claimed that a causal relationship exists here: more prisoners means less crime. The purpose of this paper is to map recent trends in the use of prison and to explore the interaction between rates of crime and rates of imprisonment.

  16. A Survey of Cyber Crime in Greece

    Directory of Open Access Journals (Sweden)

    A. Papanikolaou

    2014-11-01

    Full Text Available During the past years, the Internet has evolved into the so-called “Web 2.0”. Nevertheless, the wide use of the offered Internet services has rendered individual users a potential target to cyber criminals. The paper presents a review and analysis of various cyber crimes, based on the cases that were reported to the Cyber Crime and Computer Crime Unit of the Greek Police Force and compares them to similar data of other EU countries.

  17. The Impact of Legalized Abortion on Crime

    OpenAIRE

    2000-01-01

    We offer evidence that legalized abortion has contributed significantly to recent crime reductions. Crime began to fall roughly 18 years after abortion legalization. The 5 states that allowed abortion in 1970 experienced declines earlier than the rest of the nation, which legalized in 1973 with Roe v. Wade. States with high abortion rates in the 1970s and 1980s experienced greater crime reductions in the 1990s. In high abortion states, only arrests of those born after abortion legaliz...

  18. Local resistance patterns to antimicrobials in internal medicine: a focused report from the REGIMEN (REGistro Infezioni in MEdicina INterna) study.

    Science.gov (United States)

    Cei, Marco; Pardelli, Riccardo; Sani, Spartaco; Mumoli, Nicola

    2014-02-01

    The treatment for infections in hospitalized patients can be summarized in the timely start of empirical therapy, followed by adjustment on the basis of isolates and microbial susceptibilities. Initial therapy may be based on international guidelines. However, to know local frequencies of bacterial and fungal strains together with patterns of drug resistance should be a better approach to therapy. REGIMEN is a retrospective observational study of all consecutive recorded bacterial and fungal isolates, collected between October 2009 and August 2011 from patients admitted in a 53-bedded ward of internal medicine of a non-teaching Italian hospital. We investigated type of samples and of microorganisms, patterns of susceptibility and resistance to antibiotics, and in-hospital mortality. A total of 504 samples were examined (244 from urine, 189 from blood and 71 from skin and various exudates). Participants were old (mean age, 83 years), and so overall mortality was high (20 %). There were high frequencies of drug resistance; only 27.9 % of urinary gram-negatives and 52.6 % of blood gram-negatives were susceptible to levofloxacin. Susceptibility profiles compatible with the presence of extended-spectrum beta-lactamases were present in 64.2 % of gram-negative strains, and 10.1 % were also resistant to carbapenems. ESKAPE organisms account for a third of all bacterial infections. Local patterns of drug resistance should influence empirical antibiotic therapy for patients admitted in internal medicine wards, where mortality is high.

  19. A spatial approach to combatting wildlife crime.

    Science.gov (United States)

    Faulkner, Sally C; Stevens, Michael C A; Romañach, Stephanie S; Lindsey, Peter A; Le Comber, Steven C

    2017-09-19

    Poaching can have devastating impacts on animal and plant numbers, and in many countries has reached crisis levels, with illegal hunters employing increasingly sophisticated techniques. Here, we show how geographic profiling - a mathematical technique originally developed in criminology and recently applied to animal foraging and epidemiology - can be adapted for use in investigations of wildlife crime, using data from an eight-year study in Savé Valley Conservancy, Zimbabwe that in total includes more than 10,000 incidents of illegal hunting and the deaths of 6,454 wild animals. Using a subset of these data for which the illegal hunters' identities are known, we show that the model can successfully identify the illegal hunters' home villages using the spatial locations of hunting incidences (for example, snares) as input, and show how this can be improved by manipulating the probability surface inside the Conservancy to reflect the fact that - although the illegal hunters mostly live outside the Conservancy, the majority of hunting occurs inside (in criminology, 'commuter crime'). The results of this analysis - combined with rigorous simulations - show for the first time how geographic profiling can be combined with GIS data and applied to situations with more complex spatial patterns - for example, where landscape heterogeneity means that some parts of the study area are unsuitable (e.g. aquatic areas for terrestrial animals, or vice versa), or where landscape permeability differs (for example, forest bats tending not to fly over open areas). More broadly, these results show how geographic profiling can be used to target anti-poaching interventions more effectively and more efficiently, with important implications for the development of management strategies and conservation plans in a range of conservation scenarios. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

  20. CMIS: Crime Map Information System for Safety Environment

    Science.gov (United States)

    Kasim, Shahreen; Hafit, Hanayanti; Yee, Ng Peng; Hashim, Rathiah; Ruslai, Husni; Jahidin, Kamaruzzaman; Syafwan Arshad, Mohammad

    2016-11-01

    Crime Map is an online web based geographical information system that assists the public and users to visualize crime activities geographically. It acts as a platform for the public communities to share crime activities they encountered. Crime and violence plague the communities we are living in. As part of the community, crime prevention is everyone's responsibility. The purpose of Crime Map is to provide insights of the crimes occurring around Malaysia and raise the public's awareness on crime activities in their neighbourhood. For that, Crime Map visualizes crime activities on a geographical heat maps, generated based on geospatial data. Crime Map analyse data obtained from crime reports to generate useful information on crime trends. At the end of the development, users should be able to make use of the system to access to details of crime reported, crime analysis and report crimes activities. The development of Crime Map also enable the public to obtain insights about crime activities in their area. Thus, enabling the public to work together with the law enforcer to prevent and fight crime.

  1. Spatial Dependence of Crime in Monterrey, Mexico

    Directory of Open Access Journals (Sweden)

    Ernesto Aguayo Téllez

    2014-06-01

    Full Text Available This paper studies the impact that the characteristics of the environment have on crime using neighborhood aggregate data of the Monterrey Metropolitan Area for the year 2010. Data spatial autocorrelation is corroborated, i.e. neighborhoods with high crime rates have a positive impact on the crime rates of its surrounding neighborhoods. Once it was controlled through the bias caused by spatial autocorrelation and data censoring, it is evidenced that the likelihood of being a crime victim and the probability of becoming an offender is positively related to variables such as unemployment, the percentage of young men and the existence of schools, hospitals or markets in the neighborhood.

  2. Cartography of crime: Portrait of metropolitan Vilnius

    National Research Council Canada - National Science Library

    Vasiliauskas, Darius; Beconytė, Giedrė

    In Europe, especially in Eastern Europe, geographic research in criminology deals mainly with data analysis and accompanying cartographic communication through the visualisation of crime maps is less developed...

  3. Fear of crime in urban parks

    DEFF Research Database (Denmark)

    Maruthaveeran, Sreetheran; Konijnendijk, Cecil Cornelis

    2015-01-01

    Lumpur in their urban parks; concealment (vegetation), being alone, signs of physical disorder, presence of social incivilities, familiarity, prior information about crime and previous crime experience. This study also found that among the residents of Kuala Lumpur there is some form of defensive...... behaviour towards crime in urban parks but this was only observed among the women. This paper has also highlighted the implications on park planning and management from the comments given by the respondents. Though the aspect of fear towards crime in urban green spaces is not a major focus in Malaysia...

  4. City of Durham Police Crime Reports

    Data.gov (United States)

    City and County of Durham, North Carolina — This metadata contains information on crime definitions and location obfuscation techniques to protect citizen identification data. Officers responding to incidents...

  5. Crime clocks and target performance maps

    CSIR Research Space (South Africa)

    Cooper, Antony K

    1999-12-01

    Full Text Available the boundaries 3rd Annual Crime Mapping Research Conference 11 - 14 December 1999, Orlando, Florida Panel: Mapping around the world Crime clocks and target performance maps AK Cooper, TC Gilfillan, MA Potgieter, PMU Schmitz and PM du Plessis Division.... In an American context, a CAS Block could be equated to a Beat. Using the centroids and/or faces of the CAS Blocks, one can readily map the crime data using a GIS. Figure 1: Location of the study area Traditionally, automated crime mapping and analysis...

  6. Statistical physics of crime: a review.

    Science.gov (United States)

    D'Orsogna, Maria R; Perc, Matjaž

    2015-03-01

    Containing the spread of crime in urban societies remains a major challenge. Empirical evidence suggests that, if left unchecked, crimes may be recurrent and proliferate. On the other hand, eradicating a culture of crime may be difficult, especially under extreme social circumstances that impair the creation of a shared sense of social responsibility. Although our understanding of the mechanisms that drive the emergence and diffusion of crime is still incomplete, recent research highlights applied mathematics and methods of statistical physics as valuable theoretical resources that may help us better understand criminal activity. We review different approaches aimed at modeling and improving our understanding of crime, focusing on the nucleation of crime hotspots using partial differential equations, self-exciting point process and agent-based modeling, adversarial evolutionary games, and the network science behind the formation of gangs and large-scale organized crime. We emphasize that statistical physics of crime can relevantly inform the design of successful crime prevention strategies, as well as improve the accuracy of expectations about how different policing interventions should impact malicious human activity that deviates from social norms. We also outline possible directions for future research, related to the effects of social and coevolving networks and to the hierarchical growth of criminal structures due to self-organization.

  7. Fear of Crime among the Elderly: The Role of Crime Prevention Programs.

    Science.gov (United States)

    Norton, Lee; Courlander, Michael

    1982-01-01

    Examined the effect of police patrol and crime education on the fear of crime and security-conscious behavior of 152 senior citizens. Results indicated that, although those who were highly affected by the crime education component exhibited increased security-conscious behavior, they also showed increased fear. (Author)

  8. The Prosecution of Hate Crimes: The Limitations of the Hate Crime Typology

    Science.gov (United States)

    Phillips, Nickie D.

    2009-01-01

    Since the development of bias crime legislation over the past few decades, scholars have debated the merits of the legislation and questioned its enforcement. In light of such concerns, this study presents characteristics of all cases prosecuted as bias crimes in a New Jersey county between 2001 and 2004 and applies the hate crime typology…

  9. A Linear Algorithm for the CMS Muon Drift Tubes Local Pattern Recognition

    CERN Document Server

    De Min, Alberto

    2007-01-01

    In this note a new, linear reconstruction algorithm is suggested for the CMS barrel muon chambers that detects the presence of a muon track, performs optimal pattern recognition, solves left-right ambiguities and fits the muon track segment within each chamber with a simple single-step procedure. The algorithm uses mixed-integer programming techniques developed in operations research. Compared to the sequential reconstruction method presently used it is potentially unbiased, more reliable and possibly faster.

  10. Film flows and self-organized patterns of 2D-localized structures

    Energy Technology Data Exchange (ETDEWEB)

    Frenkel, A.L. [Univ. of Alabama, Tuscaloosa, AL (United States)

    1996-12-31

    Films flowing down an inclined plane are considered. An unconventional perturbation approach is discussed. It yields the most general evolution equation for film thickness and the least restrictive conditions for its validity. Results of numerical simulations of the dissipative-dispersive evolution equation indicate that novel, more complex type of spatiotemporal patterns can exist for strange attractors of nonequilibrium systems. It is suggested that real-life experiments satisfying the validity conditions of this theory are possible.

  11. Ways for the Crime of Endangering Public Safety with Dangerous Means to Cast off the Pattern of“All-inclusive Crime”%以危险方法危害公共安全罪如何走出“口袋罪”的窠臼

    Institute of Scientific and Technical Information of China (English)

    仝其宪; 王永胜

    2014-01-01

    With the apparent characteristics of expansion, the crime of endangering public safety with dangerous means has ultimately developed into an “all-inclusive crime”.Among the series of causes of the situation, the basic reasons lie in two aspects:one is the large expansion area allowed for by the elastic clauses in legislation;and the other is the irrational pusuit of the judicial organ for the so-called substantive justice for catering to public opinion and the resulting tendency of sentencing against conviction.Only by strictly defining the constitution of crime, applying to the judicial rationality, guiding“public opinion” reasonably, abandoning the practice of sen-tencing against conviction, and following the basic principles of criminal law, can we make the crime of endange-ring public safety with dangerous means cast off the pattern of “all-inclusive crime”.%以危险方法危害公共安全罪明显具有扩张适用之表征,并最终形成“口袋罪”。产生这一结果的因素固然较多,但根本原因源自于两个方面:一是立法上的弹性条款给该罪预留太大的扩张适用之空间,二是司法的非理性致使司法机关为顺“民意”,追求所谓的实质公正,呈现量刑反制定罪倾向。只有严格限定该罪的犯罪构成,回归司法理性,合理引导“民意”,摈弃量刑反制定罪思维,遵循刑法基本规律,方能使以危险方法危害公共安全罪走出“口袋罪”的窠臼。

  12. Cyber Crime & Cyber War – "Part of the Game": Cyber Security, Quo Vadis?

    Directory of Open Access Journals (Sweden)

    Karl H. Stingeder

    2015-09-01

    äventivmaßnahmen ist weder ausreichend noch nachhaltig. What roles does cyber crime play today? What differentiates cyber crime from cyber war? How must cyber security be organized in order to effectively ensure sustainable protection? Cyber crime activities are frequently characterized by the easy accessibility of fraudulent know-how and technical means. Due to the sluggish and inadequate implementation of coordinated countermeasures, cyber crimes are a low-risk and high-reward scenario for cyber criminals. The more organized and specialized a cyber crime network, the greater the potential for damage. In fact, cyber crime is the umbrella term for fraudulent activities via the World Wide Web. These rely on the model of "traditional" offline criminal behavior patterns, which are easy to access thanks to the technological spectrum of the Internet. Nonetheless, it is the technical execution of the crime that represents a crucial distinguishing characteristic between online and offline fraud. Furthermore, from the point of view of organized crime, governments and terror groups, a lower inhibition threshold for a military exploitation of the Internet is a focal point of cyber security. As soon as cyber crime activity is the means by which to achieve political goals, it is called cyber war. Sustainable measures directed against cyber crime and cyber war take place in a highly dynamic environment. Cyber criminals are usually well-equipped in terms of logistics and financial resources. Many are supported by governments. Cyber criminals have wide-ranging technical expertise, which enables them to develop customized malware to accomplish their goals. At present, many companies and public sector entities do not fully realize how imperative defense systems are. Cyber security focus on purely preventive measures is therefore neither sufficient nor sustainable.

  13. Free State educators' perceptions of the scope of learner crime

    African Journals Online (AJOL)

    Erna Kinsey

    related .... conventional crimes as violent and property-related crimes poses problems. ..... injuria, as well as written and oral defamation can only be punishable crimes ..... to work and play in a secure and safe school environment and neigh-.

  14. Plasmon-assisted local temperature control to pattern individual semiconductor nanowires and carbon nanotubes.

    Science.gov (United States)

    Cao, Linyou; Barsic, David N; Guichard, Alex R; Brongersma, Mark L

    2007-11-01

    We demonstrate a new versatile strategy to rapidly heat and cool subdiffraction-limited volumes of material with a focused light beam. The local temperature rise is obtained by exploiting the unique optical properties of metallic nanostructures that facilitate efficient light-to-heat conversion through the excitation of surface plasmons (collective electron oscillations). By locally heating nanoscale metallic catalysts, growth of semiconductor nanowires and carbon nanotubes can be initiated and controlled at arbitrarily prespecified locations and down to the single nanostructure level in a room-temperature chamber. This local heating strategy can be orders of magnitude (>10(5)) more energy efficient than conventional chemical vapor deposition (CVD) tools in which an entire chamber/substrate is heated. For these reasons, it has great potential for use in process- and energy-efficient assembly of nanowires into complementary metal-oxide-semiconductor (CMOS) compatible device architectures. In general, the high degree of spatial and temporal control over nanoscale thermal environments afforded by this method inspires new pathways for manipulating a range of important thermally stimulated processes and the development of novel photothermal devices.

  15. Immigration, crime, and incarceration in early twentieth-century America.

    Science.gov (United States)

    Moehling, Carolyn; Piehl, Anne Morrison

    2009-11-01

    The major government commissions on immigration and crime in the early twentieth century relied on evidence that suffered from aggregation bias and the absence of accurate population data, which led them to present partial and sometimes misleading views of the immigrant-native criminality comparison. With improved data and methods, we find that in 1904, prison commitment rates for more serious crimes were quite similar by nativity for all ages except ages 18 and 19, for which the commitment rate for immigrants was higher than for the native-born. By 1930, immigrants were less likely than natives to be committed to prisons at all ages 20 and older, but this advantage disappears when one looks at commitments for violent offenses. The time series pattern reflects a growing gap between natives and immigrants at older ages, one that was driven by sharp increases in the commitment rates of the native-born, while commitment rates for the foreign-born were remarkably stable.

  16. Tourism and Crime: Evidence from the Philippines

    OpenAIRE

    Palanca-Tan, Rosalina; Garces, Len Patrick Dominic M.; Angelica Nicole C. Purisima; Zaratan, Angelo Christian L.

    2015-01-01

    Using panel data gathered from 16 regions of the Philippines for the period 2009–11, this paper investigates the relationship between tourism and crime. The findings of the study show that the relation between tourism and crime may largely depend on the characteristics of visitors and the types of crime. For all types of crime and their aggregate, no significant correlation between the crime rate (defined as the number of crime cases divided by population) and total tourist arrivals is found....

  17. Understanding Recurrent Crime as System-Immanent Collective Behavior

    OpenAIRE

    Matjaž Perc; Karsten Donnay; Dirk Helbing

    2013-01-01

    Containing the spreading of crime is a major challenge for society. Yet, since thousands of years, no effective strategy has been found to overcome crime. To the contrary, empirical evidence shows that crime is recurrent, a fact that is not captured well by rational choice theories of crime. According to these, strong enough punishment should prevent crime from happening. To gain a better understanding of the relationship between crime and punishment, we consider that the latter requires prio...

  18. ESTABLISHMENT OF NEOCHETINA SPP.: THEIR PATTERN OF LOCAL DISPERSAL AND AGE STRUCTURE AT THE RELEASE SITE

    Directory of Open Access Journals (Sweden)

    KASNO,

    2001-01-01

    Full Text Available Study on the distribution pattern and age structure ofNeochetina spp. (Coleoptera: Curculionidae at the release site was conducted to know a the distributi on pattern of the weevil, b its establishment status, c its survival rate in the field, and d relationship between the attack of the weevil and the fungus, Altemaria eichhorniae Nag Rag & Ponappa (Hyphomycetes, in causing damage to water hyacinth. This study was conducted at Situ Bagendit lake, Garut, West Java. A release and recapture method was employed to study the mode and rate of dispersal of the weevils under field conditions. Regular sample collecti on at two-month interval was done to evaluate the pattern of distribution and to assess the age structure under field condition. Another two months regular observation was done to assess damage severity due to adult weevils and the fungus, A. eichhorniae, on water hyacinth. Results showed, that the weevils seem to disperse actively to all directions following the presence of water hyacinth. The data also showed that the dispersal rate of the weevils was about a few meters a week. Under field conditions at Situ Bagendit lake, the weev ils were about evenly distributed throughout water hyacinth mass. The density of the weevils fluctuated from time to time, but the trend slightly increased. The survival rate of the weevils at Situ Bagendit lake was estimated not more than 5%. It was suspected that various limiting factors such as various predators have caused the low population increase under field conditions. The population increase through time confirmed that the weevils have established at Situ Bagendit lake. Field data showed that there were no interaction between the damage severity of the weed caused by both weevils and the fungus.

  19. Single-Locus versus Multilocus Patterns of Local Adaptation to Climate in Eastern White Pine (Pinus strobus, Pinaceae).

    Science.gov (United States)

    Rajora, Om P; Eckert, Andrew J; Zinck, John W R

    2016-01-01

    Natural plant populations are often adapted to their local climate and environmental conditions, and populations of forest trees offer some of the best examples of this pattern. However, little empirical work has focused on the relative contribution of single-locus versus multilocus effects to the genetic architecture of local adaptation in plants/forest trees. Here, we employ eastern white pine (Pinus strobus) to test the hypothesis that it is the inter-genic effects that primarily drive climate-induced local adaptation. The genetic structure of 29 range-wide natural populations of eastern white pine was determined in relation to local climatic factors using both a reference set of SSR markers, and SNPs located in candidate genes putatively involved in adaptive response to climate. Comparisons were made between marker sets using standard single-locus outlier analysis, single-locus and multilocus environment association analyses and a novel implementation of Population Graphs. Magnitudes of population structure were similar between the two marker sets. Outlier loci consistent with diversifying selection were rare for both SNPs and SSRs. However, genetic distances based on the multilocus among population covariances (cGD) were significantly more correlated to climate, even after correcting for spatial effects, for SNPs as compared to SSRs. Coalescent simulations confirmed that the differences in mutation rates between SSRs and SNPs did not affect the topologies of the Population Graphs, and hence values of cGD and their correlations with associated climate variables. We conclude that the multilocus covariances among populations primarily reflect adaptation to local climate and environment in eastern white pine. This result highlights the complexity of the genetic architecture of adaptive traits, as well as the need to consider multilocus effects in studies of local adaptation.

  20. Single-Locus versus Multilocus Patterns of Local Adaptation to Climate in Eastern White Pine (Pinus strobus, Pinaceae)

    Science.gov (United States)

    Zinck, John W. R.

    2016-01-01

    Natural plant populations are often adapted to their local climate and environmental conditions, and populations of forest trees offer some of the best examples of this pattern. However, little empirical work has focused on the relative contribution of single-locus versus multilocus effects to the genetic architecture of local adaptation in plants/forest trees. Here, we employ eastern white pine (Pinus strobus) to test the hypothesis that it is the inter-genic effects that primarily drive climate-induced local adaptation. The genetic structure of 29 range-wide natural populations of eastern white pine was determined in relation to local climatic factors using both a reference set of SSR markers, and SNPs located in candidate genes putatively involved in adaptive response to climate. Comparisons were made between marker sets using standard single-locus outlier analysis, single-locus and multilocus environment association analyses and a novel implementation of Population Graphs. Magnitudes of population structure were similar between the two marker sets. Outlier loci consistent with diversifying selection were rare for both SNPs and SSRs. However, genetic distances based on the multilocus among population covariances (cGD) were significantly more correlated to climate, even after correcting for spatial effects, for SNPs as compared to SSRs. Coalescent simulations confirmed that the differences in mutation rates between SSRs and SNPs did not affect the topologies of the Population Graphs, and hence values of cGD and their correlations with associated climate variables. We conclude that the multilocus covariances among populations primarily reflect adaptation to local climate and environment in eastern white pine. This result highlights the complexity of the genetic architecture of adaptive traits, as well as the need to consider multilocus effects in studies of local adaptation. PMID:27387485

  1. Single-Locus versus Multilocus Patterns of Local Adaptation to Climate in Eastern White Pine (Pinus strobus, Pinaceae.

    Directory of Open Access Journals (Sweden)

    Om P Rajora

    Full Text Available Natural plant populations are often adapted to their local climate and environmental conditions, and populations of forest trees offer some of the best examples of this pattern. However, little empirical work has focused on the relative contribution of single-locus versus multilocus effects to the genetic architecture of local adaptation in plants/forest trees. Here, we employ eastern white pine (Pinus strobus to test the hypothesis that it is the inter-genic effects that primarily drive climate-induced local adaptation. The genetic structure of 29 range-wide natural populations of eastern white pine was determined in relation to local climatic factors using both a reference set of SSR markers, and SNPs located in candidate genes putatively involved in adaptive response to climate. Comparisons were made between marker sets using standard single-locus outlier analysis, single-locus and multilocus environment association analyses and a novel implementation of Population Graphs. Magnitudes of population structure were similar between the two marker sets. Outlier loci consistent with diversifying selection were rare for both SNPs and SSRs. However, genetic distances based on the multilocus among population covariances (cGD were significantly more correlated to climate, even after correcting for spatial effects, for SNPs as compared to SSRs. Coalescent simulations confirmed that the differences in mutation rates between SSRs and SNPs did not affect the topologies of the Population Graphs, and hence values of cGD and their correlations with associated climate variables. We conclude that the multilocus covariances among populations primarily reflect adaptation to local climate and environment in eastern white pine. This result highlights the complexity of the genetic architecture of adaptive traits, as well as the need to consider multilocus effects in studies of local adaptation.

  2. Patterns of local and nonlocal water resource use across the western U.S. determined via stable isotope intercomparisons

    Science.gov (United States)

    Good, Stephen P.; Kennedy, Casey D.; Stalker, Jeremy C.; Chesson, Lesley A.; Valenzuela, Luciano O.; Beasley, Melanie M.; Ehleringer, James R.; Bowen, Gabriel. J.

    2014-10-01

    In the western U.S., the mismatch between public water demands and natural water availability necessitates large interbasin transfers of water as well as groundwater mining of fossil aquifers. Here we identify probable situations of nonlocal water use in both space and time based on isotopic comparisons between tap waters and potential water resources within hydrologic basins. Our approach, which considers evaporative enrichment of heavy isotopes during storage and distribution, is used to determine the likelihood of local origin for 612 tap water samples collected from across the western U.S. We find that 64% of samples are isotopically distinct from precipitation falling within the local hydrologic basin, a proxy for groundwater with modern recharge, and 31% of samples are isotopically distinct from estimated surface water found within the local basin. Those samples inconsistent with local water sources, which we suggest are likely derived from water imported from other basins or extracted from fossil aquifers, are primarily clustered in southern California, the San Francisco Bay area, and central Arizona. Our isotope-based estimates of nonlocal water use are correlated with both hydrogeomorphic and socioeconomic properties of basins, suggesting that these factors exert a predictable influence on the likelihood that nonlocal waters are used to supply tap water. We use these basin properties to develop a regional model of nonlocal water resource use that predicts (r2 = 0.64) isotopically inferred patterns and allows assessment of total interbasin transfer and/or fossil aquifer extraction volumes across the western U.S.

  3. Local community detection as pattern restoration by attractor dynamics of recurrent neural networks.

    Science.gov (United States)

    Okamoto, Hiroshi

    2016-08-01

    Densely connected parts in networks are referred to as "communities". Community structure is a hallmark of a variety of real-world networks. Individual communities in networks form functional modules of complex systems described by networks. Therefore, finding communities in networks is essential to approaching and understanding complex systems described by networks. In fact, network science has made a great deal of effort to develop effective and efficient methods for detecting communities in networks. Here we put forward a type of community detection, which has been little examined so far but will be practically useful. Suppose that we are given a set of source nodes that includes some (but not all) of "true" members of a particular community; suppose also that the set includes some nodes that are not the members of this community (i.e., "false" members of the community). We propose to detect the community from this "imperfect" and "inaccurate" set of source nodes using attractor dynamics of recurrent neural networks. Community detection by the proposed method can be viewed as restoration of the original pattern from a deteriorated pattern, which is analogous to cue-triggered recall of short-term memory in the brain. We demonstrate the effectiveness of the proposed method using synthetic networks and real social networks for which correct communities are known.

  4. Study of Fear of Crime in High Crime Areas in Shiraz

    Directory of Open Access Journals (Sweden)

    Habib Ahmadi

    2009-07-01

    Full Text Available This paper investigated fear of crime in the case of personal and neighborhood related variables. Aquestionnaire survey conducted in two high crime areas (Ahnmadino and Dehpialeh in Shiraz-Iran, among300 residents. Results showed that among personal variables, gender had significant relationship with fearand surprisingly males were more fearful than females. Other personal variables didn't have significantrelationship with fear of crime (age, education, ethnicity, income, home ownership. But neighborhoodrelated variables (incivility, neighborhood attachment, and neighborhood quality and crime perception inneighborhood significantly related to fear of crime. In regression multivariate analysis only incivilityentered and explained 19 percent of dependent variable.

  5. INVESTIGATING THE INFLUENCE OF TREE COVERAGE ON PROPERTY CRIME: A CASE STUDY IN THE CITY OF VANCOUVER, BRITISH COLUMBIA, CANADA

    Directory of Open Access Journals (Sweden)

    Y. Chen

    2016-06-01

    Full Text Available With the development of Geographic Information Systems (GIS, crime mapping becomes an effective approach to investigate the spatial pattern of crime in a defined area. Understanding the relationship between crime and its surrounding environment can reveal possible strategies that can reduce crime in a neighbourhood. The relationship between vegetation density and crime has been under debate for a long time. This research is conducted to investigate the impacts of tree coverage on property crime in the City of Vancouver. High spatial resolution airborne LiDAR data collected in 2013 was used for the extraction of tree covered area for cross-sectional analysis. The independent variables were put into Ordinary Least-Squares (OLS regression, Spatial Lag regression, and Geographically Weighted Regression (GWR models to examine their influences on property crime rates. According to the results, the cross-sectional analysis demonstrated statistical evidences that property crime rates had negative correlations with tree coverage, with greater influences occurred around Downtown Vancouver.

  6. CSI Effect of Crime Clarification

    Directory of Open Access Journals (Sweden)

    Aylin Yakupoğlu

    2016-08-01

    Full Text Available Objective: This research is aimed to evaluate the impact of CSI series on Criminal Justice Professional’s attitudes and behaviour and how these programs effecting public. From this point of view criminal justice professionals are expected to respond questions about, how this kind of dramas and programs guided potential criminals, reflected the practice of forensic science and directed the public expectation regarding performing their professions. Material and Methods: A survey has been conducted to 266 participants, who are working as crime scene investigation specialists, criminal courts judges, public prosecutors, lawyers, law enforcement personnel and forensic specialists, to reveal their perceptions. Gained data has been analyzed statistically by using SPSS (Version 20.0. Findings: According to some results of the research; 1 out of every 2 participants are following CSI series. only 3 out of every 10 participants expressed that these kind of series have positive effects on their professional practices, more than half of the participants agreed that crime dramas are effecting criminal behaviour and creating trained perpetrators. Also 1 out of every 2 participants believe that the perpetrators are attentive to leave fewer evidence because of these programs. Results: CSI series are not reflecting forensic techniques and methods as what it’s supposed to be in real life. Due to the raise of public interest in forensic sciences because of these dramas people changed their expectation about criminal justice mechanism which can be cause misperceptions on citizens who face with investigation and prosecution processes for the first time Keywords: CSI Effect; Crime Scene Investigation; Forensic Techniques and Methods

  7. O combate ao crime organizado

    OpenAIRE

    Lopes, Steffanie Berkenbrock

    2013-01-01

    Resumo: O presente trabalho tem por escopo retratar a realidade jurídica do crime organizado no Brasil, analisando todas as nuances do conceito, suas características, seus modelos assemelhados e sua tipificação. Pretende-se examinar a evolução histórica dessa nova criminalidade, tanto internacional quanto internamente, desde os primeiros grupos que cometiam ilícitos na forma organizada até as figuras endógeno-empresariais existentes em diversos países na atualidade. Objetiva-se verificar a ev...

  8. Structure, expression pattern and chromosomal localization of the rice Osgrp-2 gene

    Institute of Scientific and Technical Information of China (English)

    LIU; Zongzhi; (刘宗旨); WANG; Jianlong; (王建龙); WANG; Qun; (王群); HUANG; Xun; (黄勋); XU; Weihui; (徐卫辉); ZHU; Lihuang; (朱立煌); HE; Ping; (何平); FANG; Rongxiang; (方荣祥)

    2003-01-01

    Glycine-rich proteins (GRPs) belong to a kind of important structural proteins of plant cell walls. The expression of GRP genes is regulated spatially and developmentally as well as by various environmental stresses, thus providing a good model for the study of plant gene expression. We obtained the genomic sequence of a new GRP gene (Osgrp-2) from a rice genomic library. The transcription start site of Osgrp-2 was determined by 5'-rapid amplification of cDNA ends (RACE) and a 2.4-kb promoter sequence was thus delimited. The spatial and developmental expression pattern as well as the wound-inducible character of Osgrp-2 in rice plants was analyzed in detail. Furthermore, the gene was mapped onto rice chromosome 10 by analysis of restriction fragment length polymorphism (RFLP).

  9. MeV Si ion beam implantation as an effective patterning tool for the localized formation of porous silicon

    Energy Technology Data Exchange (ETDEWEB)

    Punzon-Quijorna, E., E-mail: esther.punzon@uam.es [Universidad Autonoma de Madrid, Dept. Fisica Aplicada C-XII-104, 28049, Madrid (Spain); Centro de Micro-Analisis de Materiales, Cantoblanco 28049, Madrid (Spain); Torres-Costa, V.; Manso-Silvan, M.; Martin-Palma, R.J. [Universidad Autonoma de Madrid, Dept. Fisica Aplicada C-XII-104, 28049, Madrid (Spain); Climent-Font, A. [Universidad Autonoma de Madrid, Dept. Fisica Aplicada C-XII-104, 28049, Madrid (Spain); Centro de Micro-Analisis de Materiales, Cantoblanco 28049, Madrid (Spain)

    2012-07-01

    Porous silicon (PS), in the form of single layer and multilayer structures, is a low-cost nanomaterial with applications in a wide range of fields. Hence, there is an increasing interest on the fabrication of laterally patterned PS structures. In biophysics for example, PS is a promising material for the development of low cost optical biochips, due to its remarkable biocompatibility and adjustable surface chemistry and optical properties. However, conventional lithography processes have shown to be not suitable for the proper patterning of PS. In this work, implantation of MeV Si ions is proposed as an effective tool for the localized formation of PS in the micrometer range. As previously reported by other groups, irradiation of silicon with H and He keV ions can inhibit the formation of PS. In the case of heavier ions, its higher damage efficiency allows for lower implantation doses to achieve PS growth inhibition, which allows shorter process times, and at the same time provides good lateral resolution below the micrometric range. Besides, the usage of ions of the same elementary nature as the target material avoids inconvenient side effects that may be ascribed to the implanted species. Two dimensional PS patterns with feature size of few micrometers have been successfully fabricated. Fluorescence and scanning electron microscopy reveal the proper transfer of different mask motifs into a PS/silicon patterned structure. Patterns present well defined lateral contrast and flat surface with no significant height variations, mandatory features for the development of PS based biochips. A resistivity increase has been observed on irradiated samples which could explain the inhibition of PS formation. This effect is attributed to dopant deactivation by the ion beam, since backscattering channeling measurements show no significant lattice damage.

  10. Rethinking the Criminology of Crimes of States: Monumental, Mundane, Mislabeled and Miscalculated Crimes

    Directory of Open Access Journals (Sweden)

    David Friedrichs

    2015-12-01

    Full Text Available This article provides a reflexive account on criminological engagement with crimes of states, with special attention to the case of Nazi Germany and the Holocaust, and Berlin and Germany today. The emergence of a criminology of crimes of states is reviewed, along with arguments for and against criminological engagement with such crime. In particular, a response to Carrier and Park’s (2013 critique of ‘entrepreneurial criminology’ is provided in this context. Distinctions are drawn between monumental and mundane crimes of states, and mislabeled and miscalculated crimes of states, with special attention to mundane and miscalculated crimes. A brief concluding section identifies some issues that might be included in an agenda for a criminology of crimes of states, going forward.

  11. Robust Eye Center Localization through Face Alignment and Invariant Isocentric Patterns

    Science.gov (United States)

    Teng, Dongdong; Chen, Dihu; Tan, Hongzhou

    2015-01-01

    The localization of eye centers is a very useful cue for numerous applications like face recognition, facial expression recognition, and the early screening of neurological pathologies. Several methods relying on available light for accurate eye-center localization have been exploited. However, despite the considerable improvements that eye-center localization systems have undergone in recent years, only few of these developments deal with the challenges posed by the profile (non-frontal face). In this paper, we first use the explicit shape regression method to obtain the rough location of the eye centers. Because this method extracts global information from the human face, it is robust against any changes in the eye region. We exploit this robustness and utilize it as a constraint. To locate the eye centers accurately, we employ isophote curvature features, the accuracy of which has been demonstrated in a previous study. By applying these features, we obtain a series of eye-center locations which are candidates for the actual position of the eye-center. Among these locations, the estimated locations which minimize the reconstruction error between the two methods mentioned above are taken as the closest approximation for the eye centers locations. Therefore, we combine explicit shape regression and isophote curvature feature analysis to achieve robustness and accuracy, respectively. In practical experiments, we use BioID and FERET datasets to test our approach to obtaining an accurate eye-center location while retaining robustness against changes in scale and pose. In addition, we apply our method to non-frontal faces to test its robustness and accuracy, which are essential in gaze estimation but have seldom been mentioned in previous works. Through extensive experimentation, we show that the proposed method can achieve a significant improvement in accuracy and robustness over state-of-the-art techniques, with our method ranking second in terms of accuracy

  12. Robust Eye Center Localization through Face Alignment and Invariant Isocentric Patterns.

    Science.gov (United States)

    Pang, Zhiyong; Wei, Chuansheng; Teng, Dongdong; Chen, Dihu; Tan, Hongzhou

    2015-01-01

    The localization of eye centers is a very useful cue for numerous applications like face recognition, facial expression recognition, and the early screening of neurological pathologies. Several methods relying on available light for accurate eye-center localization have been exploited. However, despite the considerable improvements that eye-center localization systems have undergone in recent years, only few of these developments deal with the challenges posed by the profile (non-frontal face). In this paper, we first use the explicit shape regression method to obtain the rough location of the eye centers. Because this method extracts global information from the human face, it is robust against any changes in the eye region. We exploit this robustness and utilize it as a constraint. To locate the eye centers accurately, we employ isophote curvature features, the accuracy of which has been demonstrated in a previous study. By applying these features, we obtain a series of eye-center locations which are candidates for the actual position of the eye-center. Among these locations, the estimated locations which minimize the reconstruction error between the two methods mentioned above are taken as the closest approximation for the eye centers locations. Therefore, we combine explicit shape regression and isophote curvature feature analysis to achieve robustness and accuracy, respectively. In practical experiments, we use BioID and FERET datasets to test our approach to obtaining an accurate eye-center location while retaining robustness against changes in scale and pose. In addition, we apply our method to non-frontal faces to test its robustness and accuracy, which are essential in gaze estimation but have seldom been mentioned in previous works. Through extensive experimentation, we show that the proposed method can achieve a significant improvement in accuracy and robustness over state-of-the-art techniques, with our method ranking second in terms of accuracy

  13. Crime analysis using open source information

    DEFF Research Database (Denmark)

    Nizamani, Sarwat; Memon, Nasrullah; Shah, Azhar Ali;

    2015-01-01

    In this paper, we present a method of crime analysis from open source information. We employed un-supervised methods of data mining to explore the facts regarding the crimes of an area of interest. The analysis is based on well known clustering and association techniques. The results show...

  14. 15 CFR 742.7 - Crime control.

    Science.gov (United States)

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Crime control. 742.7 Section 742.7... INDUSTRY AND SECURITY, DEPARTMENT OF COMMERCE EXPORT ADMINISTRATION REGULATIONS CONTROL POLICY-CCL BASED CONTROLS § 742.7 Crime control. (a) License requirements. In support of U.S. foreign policy to promote...

  15. The anatomy of the crime scene

    DEFF Research Database (Denmark)

    Sandvik, Kjetil

    2010-01-01

    Crime scenes are constituted by a combination of a plot and a place. The crime scene is a place which has been in a certain state of transformation at a certain moment in time, the moment at which the place constituted the scene for some kind of criminal activity. As such the place has been encod...

  16. [The M-cycle of crime].

    Science.gov (United States)

    Antholz, Birger

    2012-01-01

    Crime development measured by means of the changes in police recorded crime statistics (criminal offences per 100.000 inhabitants) shows periodical cycles, which can be described by the capital letter M. Starting from a low rate of criminality, crime rises over 1-3 years followed by an interim decline lasting for about one year. Then crime increases again for approximately 2 years to a second peak. After that, crime strongly declines to the next low point over a period of about two years. The course of this development is not uniform with equal amplitudes, but resembles an M-curve. Since 1950, seven such M-cycles have been observed with the 3rd M-cycle from 1965-1973, the 4th M-cycle from 1973-1984, the 5th M-cycle from 1984-1994, the 6th M-cycle from 1994-2005 and the 7th M-cycle from 2005-2010 being particularly distinct. The M-curve of crime may be explained by the M-form of the business cycle. Since World War II, the M-cycle of crime and the M-cycle of the economy have run approximately parallel. Up to the first large oil crisis, the M-cycle of crime preceded the economic situation by 1-2 years, whereas since 1976 it has followed the economic development with a time lag of one to two years.

  17. Policing organized crime : a new direction

    NARCIS (Netherlands)

    Jansen, Frederik E.; Bruinsma, Gerben J.N.

    1997-01-01

    Recent criminological research in the Netherlands underscores the fact that organized crime is embedded in society and the overall picture makes it clear that police emphasis on a crime fighting model of the police, based solely on criminal law will not be entirely effective. Therefore, the Twente p

  18. Fear of Crime and Residential Location.

    Science.gov (United States)

    Belyea, Michael J.; Zingraff, Matthew T.

    1988-01-01

    Explores relationship between fear of crime and residential location. Studies sample of more than 3,000 North Carolina residents. Results indicate that rural residents have significantly lower fear of crime than urban counterparts when known correlates are controlled. Discusses implications for future research. (Author/TES)

  19. Cyber Crime in Uganda : Myth or Reality?

    NARCIS (Netherlands)

    Tushabe, Florence; Baryamureeba, Venansius; Ardil, C

    2005-01-01

    There is a general feeling that Internet crime is an advanced type of crime that has not yet infiltrated developing countries like Uganda. The carefree nature of the Internet in which anybody publishes anything at anytime poses a serious security threat for any nation. Unfortunately, there are no fo

  20. Indicators of School Crime and Safety, 2000.

    Science.gov (United States)

    Kaufman, Phillip; Chen, Xianglei; Choy, Susan P.; Ruddy, Sally A.; Miller, Amanda K.; Fleury, Jill K.; Chandler, Kathryn A.; Rand, Michael R.; Klaus, Patsy; Planty, Michael G.

    This report contains the most recent available data on school crime and safety drawn from a number of statistical series supported by the federal government. It is organized as a series of indicators, with each indicator presenting data on a different aspect of school crime and safety. There are five sections to the report: Violent Deaths at…