A View Inside the “Black Box” of Hot Spots Policing From a Sample of Police Commanders

2016 ◽  
Vol 19 (4) ◽  
pp. 488-517 ◽  
Author(s):  
Cory P. Haberman
Keyword(s):  
Hot Spots ◽  
Causal Model ◽  
Crime Control ◽  
Hot Spot ◽  
Black Box ◽  
Causal Models ◽  
Experimental Conditions ◽  
Hot Spots Policing ◽  
Theoretical Rationale ◽  
Control Theories

This study used observations of crime strategy meetings and interviews with police commanders to “get inside the black box of hot spots policing.” The findings focus on what the studied police commanders believed they were doing and why they believed those tactics would be effective during hot spots policing implemented under non-experimental conditions. An example causal model for the effectiveness of hot spots policing that emerged from the data is presented. While the commanders’ views aligned with commonly used policing tactics and crime control theories, their underlying theoretical rationale is complex. The presented model provides one causal model that could be tested in future hot spots policing evaluations, and a discussion is presented of how the study’s methodology can be applied in other jurisdictions to define localized causal models and improve hot spot policing evaluations.

Understanding the Predictors of Street Robbery Hot Spots: A Matched Pairs Analysis and Systematic Social Observation

2020 ◽  
pp. 001112872092611
Author(s):  
Nathan T. Connealy
Keyword(s):  
Hot Spots ◽  
Crime Control ◽  
Hot Spot ◽  
Open Data ◽  
Environmental Predictors ◽  
Control Units ◽  
Systematic Social Observation ◽  
Social Observation ◽  
Street Robbery ◽  
Street Segments

This study examines the environmental predictors that classify street robbery hot spots and control street segments in Indianapolis. Empirical controls were generated by matching each hot spot to a corresponding set of zero-crime control and low-crime control units. Then, units were evaluated based on the presence of crime generators and attractors, which were downloaded from open data sources and spatially joined to the street segments, and disorder indicators obtained via systematic social observation using Google Street View. The findings provide information about the influence environmental predictors have on the presence of street robbery hot spots, and whether the composition of hot spots significantly differs from that of similar places that experienced no crime or low counts of crime.

Hot Spots Policing

Criminology ◽  
2016 ◽  
Author(s):  
Tammy Kochel ◽  
Seyvan Nouri
Keyword(s):  
Crime Prevention ◽  
Hot Spots ◽  
Hot Spot ◽  
Situational Crime Prevention ◽  
Geographic Area ◽  
Third Party ◽  
Control Cost ◽  
Hot Spots Policing ◽  
Diffusion Of Benefits ◽  
National Institute Of Justice

Since the 1980s, the nature of policing has expanded beyond a person-focused approach to include a location-based approach. Recently developed proactive policing strategies that are concerned with the geographic distribution and explanation of crime include hot spots policing and community policing, and oftentimes problem-oriented policing, broken windows policing, third-party policing, and focused deterrence strategies. Hot spots policing entails focusing police efforts at crime prevention in a very small geographic area where crime concentrates. This strategy is one of only a few policing strategies grounded in both theory and research. Crime concentrates at places even more than it concentrates in people. Research in Minneapolis, Minnesota, in the 1980s demonstrated that 60 percent of the crime occurs at 6 percent of places (see Sherman, et al. 1989, cited under Theory and Basis of Hot Spots Policing). Place-based theories about routine activities and rational choice have led to deterrence-based strategies such as directed patrol, crackdowns, and other traditional approaches to hot spots policing, as well as more community-oriented, problem-solving, and situational crime prevention approaches at crime hot spots. Hot spots policing is one of few areas in criminal justice research that has been tested using randomized controlled trials, a gold standard for research. Several systematic reviews suggest that focusing police efforts in a small geographic area reduces crime. Furthermore, research on displacement and diffusion of benefits suggests that hot spots policing does not merely geographically displace crime. In fact, nearby places may experience a diffusion of crime benefits. Only a few studies have examined the noncrime impacts of hot spots policing, but these suggest that it does not harm public perceptions of police and may even promote informal social control. Cost-effectiveness analyses have been partially used to assess the relative costs and outcomes of hot spot policing interventions. Additionally, existing research has suggested the crime harm index (CHI) for assessing the crime impact of hot spot policing interventions. Several data sources are available from past National Institute of Justice–funded studies on hot spots of crime and hot spots policing.

Using “Symbolic” SWAT Raids as a Crime Reduction Strategy: Are Their Effects “Instrumental” in Nature?

2016 ◽  
Vol 30 (2) ◽  
pp. 176-200
Author(s):  
Dae-Young Kim ◽  
Scott W. Phillips ◽  
Andrew P. Wheeler
Keyword(s):  
Law Enforcement ◽  
Hot Spots ◽  
Crime Control ◽  
Hot Spot ◽  
Interrupted Time Series ◽  
Deterrent Effect ◽  
Calls For Service ◽  
Different Types ◽  
Drug Arrests ◽  
Using Data

This study explores the instrumental function of hot spot policing. Although prior research has examined deterrent effects in crime hot spots, less is known about its citywide effects and varying effects across different types of crime and disorder. Also, there still exist gaps in the literature about what strategies are most likely to deter crime and disorder. Using data on crime and law enforcement in Buffalo, this study uses interrupted time-series models to determine whether symbolic Special Weapons and Tactics (SWAT) raids have any citywide impacts on drug arrests, calls for service, and different types of crimes. There is no evidence of a deterrent effect on drug arrests and calls for service. However, the SWAT intervention resulted in significant decreases in street crimes involving property (robberies and larcenies). Its crime control effects are mostly abrupt and temporary, but there are lingering effects of the intervention. Finally, implications of the results are discussed.

Spatial Hotspot Analysis of Bucharest’s Urban Heat Island (UHI) Using Modis Data

2018 ◽  
Vol 18 (1) ◽  
pp. 14-22 ◽  
Author(s):  
Georgiana Grigoraș ◽  
Bogdan Urițescu
Keyword(s):  
Surface Temperature ◽  
Air Temperature ◽  
Land Surface Temperature ◽  
Hot Spots ◽  
Land Surface ◽  
Hot Spot ◽  
Monitoring Network ◽  
Residential Areas ◽  
Hotspot Analysis ◽  
The City

Abstract The aim of the study is to find the relationship between the land surface temperature and air temperature and to determine the hot spots in the urban area of Bucharest, the capital of Romania. The analysis was based on images from both moderate-resolution imaging spectroradiometer (MODIS), located on both Terra and Aqua platforms, as well as on data recorded by the four automatic weather stations existing in the endowment of The National Air Quality Monitoring Network, from the summer of 2017. Correlation coefficients between land surface temperature and air temperature were higher at night (0.8-0.87) and slightly lower during the day (0.71-0.77). After the validation of satellite data with in-situ temperature measurements, the hot spots in the metropolitan area of Bucharest were identified using Getis-Ord spatial statistics analysis. It has been achieved that the “very hot” areas are grouped in the center of the city and along the main traffic streets and dense residential areas. During the day the "very hot spots” represent 33.2% of the city's surface, and during the night 31.6%. The area where the mentioned spots persist, falls into the "very hot spot" category both day and night, it represents 27.1% of the city’s surface and it is mainly represented by the city center.

The family Orthotrichaceae (Bryophyta) in flora of Russia: results of revision and biogeographical review

2018 ◽  
Vol 52 (2) ◽  
pp. 519-534 ◽  
Author(s):  
V. E. Fedosov
Keyword(s):  
Hot Spots ◽  
Latitudinal Gradient ◽  
Hot Spot ◽  
Spatial Differentiation ◽  
Taxonomic Composition ◽  
Undescribed Species ◽  
Longitudinal Gradient ◽  
Biogeographic Pattern ◽  
The Family ◽  
North Pacific Region

Recent studies on Orthotrichoid mosses in Russia are summarized genus by genus. Orthotrichum furcatum Otnyukova is synonymized with Nyholmiella obtusifolia. Orthotrichum vittii is excluded from the Russian moss flora. Description of O. dagestanicum is amended. Fifty four currently recognized species from 9 genera of the Orthotrichaceae are presently known to occur in Russia; list of species with common synonyms and brief review of distribution in Russia is presented. Numerous problematic specimens with unresolved taxonomy were omitted for future. Revealed taxonomical inconsistencies in the genera Zygodon, Ulota, Lewinskya, Nyholmiella, Orthotrichum are briefly discussed. Main regularities of spatial differentiation of the family Orthotrichaceae in Russia are considered. Recently presented novelties contribute to the certain biogeographic pattern, indicating three different centers of diversity of the family, changing along longitudinal gradient. Unlike European one, continental Asian diversity of Orthotrichaceae is still poorly known, the Siberian specimens which were previously referred to European species in most cases were found to represent other, poorly known or undescribed species. North Pacific Region houses peculiar and poorly understood hot spot of diversity of Orthotrichoid mosses. Thus, these hot spots are obligatory to be sampled in course of revisions of particular groups, since they likely comprise under-recorded cryptic- or semi-cryptic species. Latitudinal gradient also contributes to the spatial differentiation of the revealed taxonomic composition of Orthotrichaceae.

scholarly journals Family Practices and Temporality at Breakfast: Hot Spots, Convenience and Care

Sociology ◽  
2021 ◽  
pp. 003803852110155
Author(s):  
Daniela Pirani ◽  
Vicki Harman ◽  
Benedetta Cappellini
Keyword(s):  
Hot Spots ◽  
Hot Spot ◽  
Family Meals ◽  
Personal Integrity ◽  
Structured Interviews ◽  
Time Saving ◽  
Family Time ◽  
Dominant Feature ◽  
Family Practices ◽  
Cold Spots

Drawing on 34 semi-structured interviews, this study investigates the temporality of family practices taking place in the hot spot. It does so by looking at how breakfast is inserted in the economy of family time in Italy. Our data show that breakfast, contrary to other meals, allows the adoption of more individualised and asynchronous practices, hinged on the consumption of convenience products. These time-saving strategies are normalised as part of doing family. Although the existing literature suggests that convenience and care are in opposition, and consumers of convenience products can experience anxiety and a lack of personal integrity, such features were not a dominant feature of our participants’ accounts. These findings suggest that the dichotomies of hot/cold spots and care/convenience are not always experienced in opposition when embedded within family practices. Hence, this study furthers understandings of family meals, temporality and the distinction between hot and cold spots.

Investigation of On-Chip Hot Spot Cooling Using Microchannel Heat Sink

2013 ◽  
Vol 455 ◽  
pp. 466-469
Author(s):  
Yun Chuan Wu ◽  
Shang Long Xu ◽  
Chao Wang
Keyword(s):  
Heat Flux ◽  
Heat Sink ◽  
Hot Spots ◽  
Hot Spot ◽  
High Heat ◽  
High Heat Flux ◽  
Microchannel Heat Sink ◽  
Three Dimensional Model ◽  
Spot Cooling ◽  
On Chip

With the increase of performance demands, the nonuniformity of on-chip power dissipation becomes greater, causing localized high heat flux hot spots that can degrade the processor performance and reliability. In this paper, a three-dimensional model of the copper microchannel heat sink, with hot spot heating and background heating on the back, was developed and used for numerical simulation to predict the hot spot cooling performance. The hot spot is cooled by localized cross channels. The pressure drop, thermal resistance and effects of hot spot heat flux and fluid flow velocity on the cooling of on-chip hot spots, are investigated in detail.

scholarly journals Deletion Formation Between the Two Salmonella typhimurium Flagellin Genes Encoded on the Mini F Plasmid: Escherichia coli ssb Alleles Enhance Deletion Rates and Change Hot-Spot Preference for Deletion Endpoints

Genetics ◽  
1997 ◽  
Vol 145 (3) ◽  
pp. 563-572 ◽  
Author(s):  
Takafumi Mukaihara ◽  
Masatoshi Enomoto
Keyword(s):  
Escherichia Coli ◽  
Salmonella Typhimurium ◽  
Hot Spots ◽  
Hot Spot ◽  
Direct Repeats ◽  
Replication Slippage ◽  
Detection Systems ◽  
Deletion Formation ◽  
Homologous Sequences ◽  
Deletion Detection

Deletion formation between the 5′-mostly homologous sequences and between the 3′-homeologous sequences of the two Salmonella typhimurium flagellin genes was examined using plasmid-based deletion-detection systems in various Escherichia coli genetic backgrounds. Deletions in plasmid pLC103 occur between the 5′ sequences, but not between the 3′ sequences, in both RecA-independent and RecA-dependent ways. Because the former is predominant, deletion formation in a recA background depends on the length of homologous sequences between the two genes. Deletion rates were enhanced 30- to 50-fold by the mismatch repair defects, mutS, mutL and uvrD, and 250-fold by the ssb-3 allele, but the effect of the mismatch defects was canceled by the ΔrecA allele. Rates of the deletion between the 3′ sequences in plasmid pLC107 were enhanced 17- to 130-fold by ssb alleles, but not by other alleles. For deletions in pLC107, 96% of the endpoints in the recA+ background and 88% in ΔrecA were in the two hot spots of the 60- and 33-nucleotide (nt) homologous sequences, whereas in the ssb-3 background >50% of the endpoints were in four- to 14-nt direct repeats dispersed in the entire 3′ sequences. The deletion formation between the homeologous sequences is RecA-independent but depends on the length of consecutive homologies. The mutant ssb allele lowers this dependency and results in the increase in deletion rates. Roles of mutant SSB are discussed with relation to misalignment in replication slippage.

scholarly journals Does Entrepreneurship Contribute to Innovation Performance When Considering Spatial Spillover Effects? Evidence From the Automobile Industrial Cluster in China

SAGE Open ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 215824402098299
Author(s):  
Haishi Li ◽  
Xiangyi Xu ◽  
Shuaishuai Li
Keyword(s):  
Automobile Industry ◽  
Hot Spots ◽  
Hot Spot ◽  
Empirical Support ◽  
Temporal Patterns ◽  
Spillover Effects ◽  
Industrial Clusters ◽  
Innovation Performance ◽  
Spatial Spillover ◽  
Spatio Temporal

Entrepreneurship, as one of the important factors to promote industrial innovation, is closely related to the development of the regional economy. Based on the methods of Kernel density and standard deviation ellipse, this article presents the spatio-temporal patterns of entrepreneurship and innovation performance. The article also examines the spatial spillover mechanism of entrepreneurship on innovation performance by establishing spatial Durbin models. The heterogeneous results of the spatial regression models in six clusters are also discussed. The final results show that the spatio-temporal patterns of entrepreneurship are gradually presenting three major hot spots and two secondary hot spots while the spatio-temporal patterns of innovation performance are presenting four major hot spots and a secondary hot spot; the spatial distribution of both entrepreneurship and innovation performance are changing regularly; the spillover effects of entrepreneurship and innovation performance are both significant; the spatial spillover mechanisms in six automobile industrial clusters are different. The results can provide empirical support for decision-making in the automobile industry in China in the future.

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