血和肝脏检材保存条件对氰化物浓度的影响

研究了大白鼠血液和肝脏检材保存时间及保存温度对氰化物浓度的影响。研究表明，保存168h，保存温度4℃，血液和肝脏检材中的氰化物含量变化很小；保存温度25℃，血液和肝脏险材中的氰化物浓度随时间延长而上升，肝脏检材中氰化物浓度在168h为4h的1．17倍。4h染毒组大白鼠氰化物浓度血中比肝脏中高2．3倍，证实了氰化物在体内分布的差异性。     

TARGET CHOICE DURING EXTREME EVENTS: A DISCRETE SPATIAL CHOICE MODEL OF THE 2011 LONDON RIOTS

Riots are extreme events, and much of the early research on rioting suggested that the decision making of rioters was far from rational and could only be understood from the perspective of a collective mind. In the current study, we derive and test a set of expectations regarding rioter spatial decision making developed from theories originally intended to explain patterns of urban crime when law and order prevail—crime pattern and social disorganization theory—and consider theories of collective behavior and contagion. To do this, we use data for all riot‐related incidents that occurred in London in August 2011 that were detected by the police. Unlike most studies of victimization, we use a random utility model to examine simultaneously how the features of the destinations selected by rioters, the origins of their journeys, and the characteristics of the offenders influence offender spatial decision making. The results demonstrate that rioter target choices were far from random and provide support for all three types of theory, but for crime pattern theory in particular. For example, rioters were more likely to engage in the disorder close to their home location and to select areas that contained routine activity nodes and transport hubs, and they were less likely to cross the Thames River. In terms of contagion, rioters were found to be more likely to target areas that had experienced rioting in the previous 24 hours. From a policy perspective, the findings provide insight into the types of areas that may be most vulnerable during riots and why this is the case, and when particular areas are likely to be at an elevated risk of this type of disorder.     

BITING ONCE,TWICE: THE INFLUENCE OF PRIOR ON SUBSEQUENT CRIME LOCATION CHOICE

Properties, victims, and locations previously targeted by offenders have an increased risk of being targeted again within a short time period. It has been suggested that often the same offenders are involved in these repeated events and, thus, that offenders’ prior crime location choices influence their subsequent crime location choices. This article examines repeated crime location choices, testing the hypothesis that offenders are more likely to commit a crime in an area they previously targeted than in areas they did not target before. Unique data from four different data sources are used to study the crime location choices of 3,666 offenders who committed 12,639 offenses. The results indicate that prior crime locations strongly influence subsequent crime location choices. The effects of prior crime locations are larger if the crimes are frequent, if they are recent, if they are nearby, and if they are the same type of crime.     

THE FORM OF REFORM: REVISITING THE CHOICE AMONG A CREED,A CODE,AND A CATALOGUE

In the past, international Evidence law reformers have focused primarily on substantive evidentiary doctrines. However, for reforms to be effective, the courts and legislatures must state the revised doctrines in a form that promotes the overall objectives of the legal system. The basic choice facing reformers is among a creed identifying broad goals, a code stating flexible principles, and a catalogue prescribing detailed rules. In the past, especially in the United States, there was a consensus among Evidence scholars that the code format is preferable. However, if a key objective of a national legal system is to encourage pretrial disposition of cases, the courts and legislatures should give serious thought to utilizing a catalogue format. That format is especially attractive in the doctrinal areas such as privilege in which evidentiary rules are intended to affect primary behavior outside the courtroom.     

THE LAW OF CRIME CONCENTRATION AND THE CRIMINOLOGY OF PLACE*

According to Laub (2004), criminology has a developmental life course with specific turning points that allow for innovations in how we understand and respond to crime. I argue that criminology should take another turn in direction, focusing on microgeographic hot spots. By examining articles published in Criminology, I show that only marginal attention has been paid to this area of study to date—often termed the criminology of place. I illustrate the potential utility of a turning point by examining the law of crime concentration at place, which states that for a defined measure of crime at a specific microgeographic unit, the concentration of crime will fall within a narrow bandwidth of percentages for a defined cumulative proportion of crime. By providing the first cross‐city comparison of crime concentration using a common geographic unit, the same crime type, and examining a general crime measure, I find strong support for a law of crime concentration. I also show that crime concentration stays within a narrow bandwidth across time, despite strong volatility in crime incidents. By drawing from these findings, I identify several key research questions for future study. In conclusion, I argue that a focus on the criminology of place provides significant opportunity for young scholars and has great promise for advancing criminology as a science.     

THE MISPLACED ROLE OF RATIONAL CHOICE IN NEUTRALIZATION THEORY

This study addresses one point in neutralization theory. It is often maintained that techniques of neutralization relieve moral constraints which allow for individuals to commit delinquent behavior. Drawing on the body of knowledge concerning vocabularies of motives, it is argued here that motives in deviancy theory should not be viewed in such positivist/causal terms. Techniques of neutralization are motives which are more accurately utilized after behavior is committed and only when such behavior is called into question. It is also argued that the use of motives and the types of motives should indicate the degree of conflict involved in the question situation.     

A SENTIMENTAL JOURNEY TO CRIME: EFFECTS OF RESIDENTIAL HISTORY ON CRIME LOCATION CHOICE*

Many offenses take place close to where the offender lives. Anecdotal evidence suggests that offenders also might commit crimes near their former homes. Building on crime pattern theory and combining information from police records and other sources, this study confirms that offenders who commit robberies, residential burglaries, thefts from vehicles, and assaults are more likely to target their current and former residential areas than similar areas they never lived in. In support of the argument that spatial awareness mediates the effects of past and current residence, it also is shown that areas of past and present residence are more likely to be targeted if the offender lived in the area for a long time instead of briefly and if the offender has moved away from the area only recently rather than a long time ago. The theoretical implications of these findings and their use for investigative purposes are discussed, and suggestions for future inquiry are made.     

REEXAMINING SOCIAL DISORGANIZATION THEORY USING CALLS TO THE POLICE AS A MEASURE OF CRIME*

This study examines social disorganization theory using calls to the police during 1980 in 60 Boston neighborhoods. These data, based on complainant reports of crime rather than official police reports, allow further investigation of differences in findings based on victimization data and official crime data. The rates of assault, robbery, and burglary are regressed on poverty, mobility, racial heterogeneity, family disruption, and structural density. Interaction terms for poverty and heterogeneity, poverty and mobility, and mobility and heterogeneity are also explored. Results from this study support findings from recent victimization studies and earlier ecological studies using official counts of crime. Poverty and heterogeneity, along with family disruption and structural density, are found to be important ecological variables for understanding the distribution of crime rates among neighborhoods.     

TESTING A RATIONAL CHOICE MODEL OF AIRLINE HIJACKINGS*

Using data that combines information from the Federal Aviation Administration, the RAND Corporation and a newly developed database on global terrorist activity, we are able to examine trends in 1,101 attempted aerial hijackings that occurred around the world from 1931 to 2003. We have especially complete information for 828 hijackings that occurred before 1986. Using a rational choice theoretical framework, we use continuous‐time survival analysis to estimate the impact of several major counterhijacking interventions on the hazard of differently motivated hijacking attempts and logistic regression analysis to model the predictors of successful hijackings. Some of these interventions use certainty‐based strategies of target hardening to reduce the perceived likelihood of success. Others focus on raising the perceived costs of hijacking by increasing the severity of punishment. We also assess which strategies were most effective in deterring hijackers whose major purpose was related to terrorism. We found support for the conclusion that new hijacking attempts were less likely to be undertaken when the certainty of apprehension was increased through metal detectors and law enforcement at passenger checkpoints. We also found that fewer hijackers attempted to divert airliners to Cuba once that country made it a crime to hijack flights. Our results support the contagion view that hijacking rates significantly increase after a series of hijackings closely clustered in time—but only when these attempts were successful. Finally, we found that the policy interventions examined here significantly decreased the likelihood of nonterrorist but not that of terrorist hijackings.     

THE APPLICATION AND ROBUSTNESS OF THE RATIONAL CHOICE PERSPECTIVE IN THE STUDY OF INTOXICATED AND ANGRY INTENTIONS TO AGGRESS*

Using a rational choice framework, this study examines the effects of alcohol and anger on violent decision making. Male students of legal drinking age participated in a randomized experiment in which intoxication and anger levels were manipulated. Participants read a “bar fight” scenario and completed a series of questions measuring aggressive intentions and the perceived consequences of violence. Results indicate that alcohol and anger interacted to increase one measure of aggressivity, but the perceived costs and benefits of violence were unaffected. Exploratory analyses call into question the robustness of the rational choice model, suggesting that the perspective may not be the general explanation for crime it is proclaimed to be.     

INFORMED CHOICE AND EMERGENT SYSTEMS AT THE GROWTH EDGE OF COLLABORATIVE PRACTICE

Integrated interdisciplinary team practice evolves over time as collaborative lawyers encounter the limitations of their own skill‐set in helping clients to reach consensual resolution outside the courts. Team collaboration represents the evolutionary growth edge of the collaborative practice movement. Working in teams with financial neutrals and mental health professionals who act as coaches and child specialists, collaborative lawyers become engaged in an emergent learning system called into being to assist each couple through their divorce. All professionals working on a collaborative team case participate in the process from the beginning and share responsibility for helping the clients achieve the values‐based goals identified by them early in the process. This shared professional engagement in the divorce conflict resolution process gives rise to a need for agreed roadmaps and protocols, sophisticated planning and debriefing sessions, case conferencing, and careful attention to the quality of communications at the negotiating table. None of this can happen at a “best practices” level without mutual trust between and among the professionals and a culture of transparency and accountability. These characteristics emerge over time as a natural outgrowth of working in teams.     

免疫酶斑点法检测人精浆P30及封闭物选择

<正> 免疫酶斑点法是免疫学检验中常用的方法,国外法医界有用以检测种属和血型等。但目前在我国法医学界尚未被普遍应用。本文作者用斑点法检测人精浆p30;并对斑点法中所需的封闭的牛血清白蛋白(BSA)和鸡蛋清的封闭效果进行了比较,以获得简便、实用的检测人精浆p30的斑点法。