Measuring Crime Dispersion

2001 ◽  
Vol 3 (4) ◽  
pp. 350-363 ◽  
Author(s):  
Marilyn Chilvers
Keyword(s):  
Crime Rate ◽  
Spatial Dispersion ◽  
Crime Control ◽  
Risk Measures ◽  
Control Strategies ◽  
Crime Statistics ◽  
Relative Contribution ◽  
Time Period ◽  
Crime Risk ◽  
Over Time

Existing crime statistics generally either compare crime rates within regions over time, in order to identify a worsening or improvement in crime risk, or rank regions by crime rate in a specific time period, in order to compare communities on the relative risk of victimisation. Such comparisons, however, provide no information about the relative contribution made by particular geographical areas to the observed aggregate change in the state crime rate or to the total level of crime. This paper describes the development of graphical methods and summary indices which measure the spatial dispersion of crime risk and the spatial dispersion of a change in crime risk. Measures of crime dispersion such as those described in this paper could prove useful in choosing among alternative crime control strategies and in measuring the net effects of crime control strategies or policies. Furthermore, the tendency towards a progressive concentration of crime in certain neighbourhoods may be studied.

scholarly journals Community vibrancy and its relationship with safety in Philadelphia

PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0257530
Author(s):  
Wichinpong Park Sinchaisri ◽  
Shane T. Jensen
Keyword(s):  
Crime Rate ◽  
Neighborhood Safety ◽  
Community Impact ◽  
Time Period ◽  
Two Measures ◽  
Crime Incidence ◽  
The Relationship ◽  
The City ◽  
Over Time ◽  
Unique Dataset

To what extent can the strength of a local urban community impact neighborhood safety? We construct measures of community vibrancy based on a unique dataset of block party permit approvals from the City of Philadelphia. Our first measure captures the overall volume of block party events in a neighborhood whereas our second measure captures differences in the type (regular versus spontaneous) of block party activities. We use both regression modeling and propensity score matching to control for the economic, demographic and land use characteristics of the surrounding neighborhood when examining the relationship between crime and our two measures of community vibrancy. We conduct our analysis on aggregate levels of crime and community vibrancy from 2006 to 2015 as well as the trends in community vibrancy and crime over this time period. We find that neighborhoods with a higher number of block parties have a significantly higher crime rate, while those holding a greater proportion of spontaneous block party events have a significantly lower crime rate. We also find that neighborhoods which have an increase in the proportion of spontaneous block parties over time are significantly more likely to have a decreasing trend in total crime incidence over that same time period.

scholarly journals Salmonella Bacterin Vaccination Decreases Shedding and Colonization of Salmonella Typhimurium in Pigs

2021 ◽  
Vol 9 (6) ◽  
pp. 1163
Author(s):  
Eduarda Alexandra Gonçalves de Oliveira Moura ◽  
Daniela Gomes da Silva ◽  
Caio Henrique Turco ◽  
Thainara Vitoria Carnevalli Sanches ◽  
Gabriel Yuri Storino ◽  
...  
Keyword(s):  
Salmonella Typhimurium ◽  
Blood Count ◽  
Control Strategies ◽  
Control Group ◽  
Blood Samples ◽  
Commercial Vaccine ◽  
Serum Igg ◽  
And Control ◽  
Experimental Group ◽  
Over Time

Since the occurrence of swine salmonellosis has increased over time and control strategies other than biosecurity are highly recommended, the present study aimed to evaluate the efficacy of vaccination with Salmonella Choleraesuis and Salmonella Typhimurium bacterins in pigs. Two experimental groups were formed: G1, animals immunized with two doses of a commercial vaccine (n = 20); G2, control group (n = 20). After vaccination, all pigs were orally challenged (D0) with 108 CFU of Salmonella Typhimurium and evaluated for 40 days. Every 10 days after D0, five piglets from each experimental group were euthanized and submitted to the necroscopic examination, when organ samples were collected. Blood samples and rectal swabs were collected before the first dose of the vaccine (D−42), before the second dose (D−21), before the challenge (D0), and thereafter, every three days until D39. Blood count, serum IgG measurement by ELISA, and the excretion of Salmonella Typhimurium in feces were evaluated. While the results from blood count and serum IgG concentration did not differ, the detection and excretion of Salmonella between G1 and G2 differed (p < 0.05). Therefore, it was observed that this vaccine partially protected the animals against experimental infection with Salmonella Typhimurium, reducing the excretion of bacteria in feces.

Changes in survival characteristics ofDiplostomum spathaceumcercariae emerged from cadmium-exposedLymnaea stagnalis

2005 ◽  
Vol 79 (1) ◽  
pp. 55-59 ◽  
Author(s):  
N.J. Morley ◽  
M. Crane ◽  
J.W. Lewis
Keyword(s):  
Life Span ◽  
Lymnaea Stagnalis ◽  
Control Population ◽  
Survival Period ◽  
Parasite Transmission ◽  
Tail Loss ◽  
Diplostomum Spathaceum ◽  
Time Period ◽  
Potential Indicator ◽  
Over Time

AbstractThe effect of exposingLymnaea stagnalis(Gastropoda: Pulmonata), infected withDiplostomum spathaceum(Trematoda: Diplostomatidae), to 100 μg l−1cadmium for 7 days on survival characteristics (survival, tail loss, decaudized cercarial life-span) of emerged cercariae was investigated. Exposure ofL. stagnalisto cadmium resulted in significantly increasedD. spathaceumcercarial survival and an inhibited tail loss compared to controls. The normal parallel relationship which exists over time between decreasing cercarial survival and increasing tail loss in controls was changed in cercariae from cadmium-exposed hosts with an increased proportion of cercarial deaths occurring without tail loss. The decaudized cercarial life-span over the survival period of the cercarial population did not significantly change. However comparisons between individuals decaudized during the initial 24 h time period with those which were decaudized during the final period of cercarial survival showed a significantly altered life span which did not occur in the control population. As a potential indicator of penetration ‘fitness’ comparisons were also undertaken between control and exposed cercariae decaudized during the initial 24 h time period, which revealed that the decaudized cercarial life-span from the exposed hosts was significantly different from controls. This may have important implications for the ability of cercariae to migrate through the tissues of their target host. The importance and relevance of these results to parasite transmission are discussed.

scholarly journals Faculty Publishing Productivity: Comparisons over Time

2006 ◽  
Vol 67 (3) ◽  
pp. 230-239 ◽  
Author(s):  
John M. Budd
Keyword(s):  
Academic Librarians ◽  
Tenure Track ◽  
Data Set ◽  
Part Time Faculty ◽  
Time Period ◽  
Rate Of Increase ◽  
Part Time ◽  
Per Capita ◽  
Time Faculty ◽  
Over Time

Concerns about higher education abound, and these include concerns about productivity. The present study extends two previous examinations of faculty publishing productivity covering the years 1991 to 1993 and 1995 to 1997. Both members of ARL and a group of institutions included in ACRL’s data set are included. For both groups there are some increases in mean total numbers of publications, although the rate of increase has decreased since the second time period. Per capita rates of publication demonstrate an even flatter pattern. In recent years, there have been some changes in the dynamics of universities’ faculties; there are more part-time faculty and more faculty who are not on the tenure track. These factors, coupled with the publishing data, point to activities that all academic librarians should be aware of.

scholarly journals Creating relationship continuity across projects in the construction industry

IMP Journal ◽  
2017 ◽  
Vol 11 (2) ◽  
pp. 207-229 ◽  
Author(s):  
Malena Ingemansson Havenvid ◽  
Elsebeth Holmen ◽  
Åse Linné ◽  
Ann-Charlott Pedersen
Keyword(s):  
Construction Industry ◽  
Empirical Studies ◽  
Mutual Orientation ◽  
Content Type ◽  
Construction Firms ◽  
Relationship Continuity ◽  
Time Period ◽  
Strategy Types ◽  
The Relationship ◽  
Over Time

Purpose The purpose of this paper is to investigate the relationship continuity across projects among actors in the construction industry, and to discuss why and how such continuity takes place. Design/methodology/approach The authors draw on the results from four in-depth case studies illustrating different strategies for pursuing relationship continuity. The results are analysed and discussed in light of the oft-mentioned strategies suggested by Mintzberg (1987): emergent, deliberate and deliberately emergent strategies. Furthermore, the ARA-model is used to discuss why the relationship continuity strategies are pursued, and which factors might enable and constrain the relationship continuity. Findings The main findings are twofold. First, the authors found that the strategy applied for pursuing relationship continuity may, in one-time period, contain one type of strategy or a mix of strategy types. Second, the type of strategy may evolve over time, from one type of strategy being more pronounced in one period, to other strategies being more pronounced in later periods. The strategies applied by construction firms and their counterparts can thus contain elements of emergent, deliberate and deliberately emergent strategies, in varying degrees over time. It is also shown that the strategies of the involved actors co-evolve as a result of interaction. Also, the main reasons for pursuing continuity appear to lie in the re-use and development of important resources and activities across projects to create efficiency and the possibility to develop mutual orientation, commitment and trust over time, and thus reduce uncertainty. Research limitations/implications Further empirical studies are needed to support the findings. For managers, the main implication is that relationship continuity can arise as part of an emerging interaction pattern between firms or as part of a planned strategy, but that elements of both might be needed to sustain it. Originality/value The authors combine Mintzberg’s strategy concepts with the ARA-model to bring new light to the widely debated issue of discontinuity and fragmentation in the construction industry.

The Virtues of Justice: Toward a Moral and Jurisprudential Psychology

2021 ◽  
pp. 0306624X2110668
Author(s):  
Christopher Williams ◽  
Bruce Arrigo
Keyword(s):  
Social Change ◽  
Virtue Ethics ◽  
Human Nature ◽  
Common Good ◽  
Crime Control ◽  
Well Being ◽  
Offender Therapy ◽  
Psychological Structure ◽  
The Common ◽  
Over Time

Within the theoretical literature on crime control and offender therapy, little has been written about the importance of virtue ethics in the experience of human justice and in the evolution of the common good. As a theory of being, the aretaic tradition extols eudemonic existence (i.e., excellence, flourishing) as a relational habit of developing character that is both practiced and embodied over time. What this implies is that virtue justice depends on a set of assumptions and predispositions—both moral and jurisprudential—whose meanings are essential to comprehending its psychological structure. This article sets out to explore several themes that our integral to our thesis on the virtues (i.e., the being) of justice. We reclaim justice’s aretaic significance, critique the common conflation of justice and law, discuss how the dominant legalistic conception of justice is rooted in a particular view of human nature, suggest how justice might be more properly grounded in natural moral sensibilities, and provide a tentative explication of the psychological character of justice as a twofold moral disposition. Given this exploratory commentary, we conclude by reflecting on how individual well-being, system-wide progress, and transformative social change are both possible and practical, in the interest of promoting the virtues of justice within the practice of crime control and offender therapy.

scholarly journals Visualizing Belief in Meritocracy, 1930–2010

2018 ◽  
Vol 4 ◽  
pp. 237802311881180 ◽  
Author(s):  
Jonathan J. B. Mijs
Keyword(s):  
Survey Data ◽  
Representative Sample ◽  
Western World ◽  
Birth Cohorts ◽  
Popular Belief ◽  
Time Period ◽  
Level Data ◽  
Two Measures ◽  
Time Periods ◽  
Over Time

In this figure I describe the long trend in popular belief in meritocracy across the Western world between 1930 and 2010. Studying trends in attitudes is limited by the paucity of survey data that can be compared across countries and over time. Here, I show how to complement survey waves with cohort-level data. Repeated surveys draw on a representative sample of the population to describe the typical beliefs held by citizens in a given country and period. Leveraging the fact that citizens surveyed in a given year were born in different time-periods allows for a comparison of beliefs across birth cohorts. The latter overlaps with the former, but considerably extends the time period covered by the data. Taken together, the two measures give a “triangulated” longitudinal record of popular belief in meritocracy. I find that in most countries, popular belief in meritocracy is (much) stronger for more recent periods and cohorts.

scholarly journals Neutralizing and binding antibody kinetics of COVID-19 patients during hospital and convalescent phases

2021 ◽  
Author(s):  
Xiang-Yang Yao ◽  
Wei Liu ◽  
Zhi-Yong Li ◽  
Hua-Long Xiong ◽  
Ying-Ying Su ◽  
...  
Keyword(s):  
Regression Coefficient ◽  
Control Strategies ◽  
Illness Onset ◽  
Relative Contribution ◽  
Long Time ◽  
Iga Antibody ◽  
Binding Antibody ◽  
Blood Specimens ◽  
Antibody Kinetics ◽  
Kinetics Of

Abstract Background: Knowledge of host immune response after natural SARS-CoV-2 infection is essential for the direction of vaccination and epidemiological control strategies against COVID-19.Methods: Thirty-four COVID-19 patients were enrolled with 244 serial blood specimens (38.1% after hospital discharge) collected to explore the chronological evolution of neutralizing (NAb), total (TAb), IgM, IgG and IgA antibody in parallel.Results: IgG titers reached a peak later (35 days postonset) than those of Nab, Ab, IgM and IgA (25 days postonset). IgM levels declined with an estimated half-life of 35 days postonset, which was more rapid than those of IgA and IgG (73-76 days postonset). All patients remained positive for NAb, IgG and IgA up to 3 months after illness onset. The relative contribution of IgM to NAb was higher than that of IgG (standardized β regression coefficient: 0.53 vs 0.48). However, the relative contribution of IgG to NAb increased and that of IgM further decreased after 6 weeks postonset.Conclusions: This study suggests that SARS-CoV-2 infection induces robust neutralizing and binding antibody responses in patients. Humoral immunity against SARS-CoV-2 acquired by infection may persist for a relatively long time.

scholarly journals Neglecting Decline: Remembered and Predicted Personal Development Diverge from Actual Longitudinal Change.

2019 ◽  
Author(s):  
Sarah Molouki ◽  
Daniel Bartels ◽  
Oleg Urminsky
Keyword(s):  
Longitudinal Study ◽  
Personal Development ◽  
Absolute Magnitude ◽  
Longitudinal Change ◽  
Personal Change ◽  
Future Change ◽  
Change Over Time ◽  
Time Period ◽  
One Year ◽  
Over Time

A one-year longitudinal study was conducted to investigate the accuracy of people’s assessmentsof their own personal change over time. We compared people’s predicted, actual, and recalledchange in their personality, values, and preferences over this time period. On average,participants underestimated the absolute magnitude of their personal change, yet simultaneouslyoverestimated their net improvement, in both prediction and recall. This effect was due to anasymmetry whereby people selectively neglected negative changes, especially prospectively.Although participants in our sample both improved and declined over the year, they were morelikely to remember past improvements than declines, and made nearly uniformly positivepredictions of future change. We discuss how the current findings reconcile researchdemonstrating expectations of personal improvement (e.g., Wilson &amp; Ross, 2001; Kanten &amp;Teigen, 2008) with other research that suggests people overpredict their personal stability(Quoidbach, Gilbert, &amp; Wilson, 2013).

scholarly journals NON CUSTODIAL TREATMENT OF OFFENDERS: THE MALAYSIAN APPROACH∗

2012 ◽  
Vol 15 (1) ◽  
Author(s):  
Mohammad Akram
Keyword(s):  
Crime Rate ◽  
Crime Control ◽  
Community Services ◽  
Social Phenomenon ◽  
Constructive Approach ◽  
Control Programs ◽  
History Of ◽  
Conditional Discharge

Crime as a social phenomenon has existed throughout the history of mankind, however it is increasingly realized that to reduce the crime rate and deleterious effects of crime on society, a constructive and meaningful policy is required. There is a growing awareness that one such constructive approach is the change from custodial measures of punishment to non-custodial measures. This policy is in line with crime control programs. In all societies efforts are being made to control crime as well as to relieve offenders, their families and societies as a whole from the ill-effects of crime by adopting community-oriented programs of punishment. This article examines closely the aims, the effectiveness and the use of various noncustodial measures. The measures to be discussed in this paper include absolute and conditional discharge, binding over, probation, fine, community services and attendance centers.

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