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61.
This article poses three questions: (1) Can greenhouse gases be regulated under § 112 of the Clean Air Act? (2) If they were to be regulated in this way, what would the practical consequences be? (3) Should greenhouse gases be regulated this way? To summarize the offered answers: greenhouse gases can indeed be regulated under § 112; if they were to be regulated, the practical consequences would be substantial but potentially manageable; and whether or not they should be regulated in this way depends entirely on the nature and survival of the upcoming New Source Performance Standards under § 111(d). If § 111(d) regulation survives, the question of whether or not § 112 regulation could coexist arises, with the answer being in the affirmative albeit with potentially prohibitive difficulties. If § 111(d) regulation fails, § 112 regulation may serve as a regulatory last resort on which the Environmental Protection Agency may have to rely in order to seriously tackle the threat of climate change.  相似文献   
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Despite the prominent role that procedural justice has taken in policing research, we know surprisingly little about police perceptions of procedural justice as an effective tool in their encounters with members of the public. In this study, we start with a focus on the perceptions of police recruits in a major police service, exploring their perceptions of procedural justice and its role in policing. Using data from a questionnaire of 450 police recruits in the early stages of their initial training, we find that orientations supportive of procedural justice significantly predict reported intentions to use procedural justice approaches in interacting with others, as well as the prioritization of procedural justice responses to a typical policing encounter (traffic violation). We also find that belief in an obligation to obey the law is significantly associated with perceived procedural justice outcomes. We argue that early supportive orientations towards procedural justice may be important in understanding police officers’ future interactions with members of the public, promoting positive evaluations of justice among citizens, and minimizing the risk of coercive encounters involving officer use of force.  相似文献   
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A number of critical legal aspects in the area of secure e-commerce and cybertrade are examined including doing business on the internet and web sites. Key issues including compliance with data protection laws, web site ownership and hypertext linking are raised.The use of the internet for communication on an intercompany basis provides concerns over security, confidentiality, defamation, harassment and infringement and companies must consider implementing ground rules for the use of e-mail and the internet in order to reduce or avoid corporate liability as well as directors and officers own personal liability.The growth of cybertrade raises issues relating to the underlying legal and regulatory global infrastructure and at present whilst the technology exists the other infrastructures do not and therefore there are urgent needs for co-ordination on an international basis in this area in relation to public key infrastructures, validity of digital signatures, the implementation of guidelines for trusted third parties, certification authorities and CyberNotaries.  相似文献   
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Abstract: The reflection of visible light from α‐phase brass subject to surface oxidation in air at elevated temperatures is investigated. X‐ray photoelectron and auger electron spectroscopy confirm that covered areas of brass (not exposed to air) display dezincification but an absence of significant surface oxidation, confirming a differential oxidation mechanism. Visualization of differential oxidation is shown to be enhanced by selective digital mapping of colors reflected from the surface of the brass using Adobe® Photoshop®. Enhancement is optimal when the brass is heated to ~250°C with areas of oxidation having a mirror‐like appearance. The use of this enhancement method to produce a faithful image of fingerprint ridge characteristics is demonstrated on brass shell casings where fingerprints were deposited prefiring.  相似文献   
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Visualization of fingerprint corrosion on spent brass cartridge cases by the application of a high electrical potential and conducting carbon powder is becoming an accepted method of fingerprint enhancement. However, to date, no examination has been made of any effect this technique has on ballistic identification. To resolve this, images of the breech face and firing pin marks were captured on six plated nickel and six brass primer cup spent cartridge cases. Three nickel and three brass cases were then subjected to the application of a potential of +2500 V for a period of 1 min. The remaining cases were additionally subjected to the application of carbon powder. These latter cases were then washed to remove all traces of powder. Each case was recaptured with the same ballistic identification apparatus and imaging procedure. None of the twelve cases showed any visual difference after the application of the potential or conducting powder.  相似文献   
68.
An inkless set of finger and palm impressions has been obtained on thermochromatic paper by incorporating the protic solvent butylene glycol into a base hand cream mixture, which is rubbed into the hands for 30 sec before donation. This requires no washing of the hands before or after donation, removing many of the difficulties associated with inked impressions. In a random trial of 50 male and 50 female participants (mean age 41 years), 96 found the hand cream pleasant and easy to use and all produced identifiable finger and palm impressions. Following donation, participants continued to rub the hand cream into their hands. Impressions were visible immediately after donation and have not exhibited fading 2 years after being taken. 10% of participants produced impressions that captured third‐level detail, the variation between participants being thought to be associated with the amount of pressure applied during donation.  相似文献   
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For 50 years after World War II, Latvia was incorporated into the former Soviet Union. Although in theory the use of regional languages was not discouraged, in practice knowledge of Russian was obligatory. Since restoration of the country’s independence in 1991, Latvian has again become the official language, and knowledge of Russian is widespread but optional. These political events have created a natural experiment in the possible effects of almost universal bilingualism on a language. In this study, we examine the phonetic characteristics of the Latvian syllable intonations across generations. Native speakers of Latvian, ranging from retirement age to teens, were recorded reading a word list, sentences, and a short narrative. We find that younger speakers who used Latvian only about half of the time showed fading in their pronunciation of the intonations.  相似文献   
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