美国硅谷与128公路高科技园区比较研究及启示

美国硅谷与128公路高科技园区由于形成机制不同 ,园区文化距离很大 ,管理模式相异 ,服务环境差别明显 ,导致两者发展各异 ,他们成败的经验教训对我国建立高科技园区有很强的借鉴意义     

Virtual Tool Mark Generation for Efficient Striation Analysis,

This study introduces a tool mark analysis approach based upon 3D scans of screwdriver tip and marked plate surfaces at the micrometer scale from an optical microscope. An open‐source 3D graphics software package is utilized to simulate the marking process as the projection of the tip's geometry in the direction of tool travel. The edge of this projection becomes a virtual tool mark that is compared to cross‐sections of the marked plate geometry using the statistical likelihood algorithm introduced by Chumbley et al. In a study with both sides of six screwdriver tips and 34 corresponding marks, the method distinguished known matches from known nonmatches with zero false‐positive matches and two false‐negative matches. For matches, it could predict the correct marking angle within ±5–10°. Individual comparisons could be made in seconds on a desktop computer, suggesting that the method could save time for examiners.     

The Possibilities and Limitations of Forensic Hand Comparison

On recordings of certain crimes, the face is not always shown. In such cases, hands can offer a solution, if they are completely visible. An important aspect of this study was to develop a method for hand comparison. The research method was based on the morphology, anthropometry, and biometry of hands. A new aspect of this study was that a manual and automated test were applied, which, respectively, assess many features and provide identification rates quickly. An important observation was that good quality images can provide sufficient hand details. The most distinctive features were the length/width ratio, the palm line pattern and the quantity of highly distinctive features present, and how they are distributed. The results indicate that experience did not improve the identification rates, while the manual test did. Intra‐observer variability did not influence the results, whereas hands of relatives were frequently misjudged. Both tests provided high identification rates.     

Actions by Political Officials Have Weakened the Federal Government Workplace: Downsizing Has Cut Lower Level Workers the Most and Replacing Federal Employees with Private Corporations Costs Much More,Creating the Need for Immediate Reform

Abstract

The authors of this paper are four practitioners each of whom has many years of experience working in the Federal government and also has pursued doctoral studies in public or business administration. Three ideas developed in this paper are that: (1) the Federal civil service has been changed from being a model workplace to a much less desirable one; (2) although downsizing has been touted as an efficiency and economy measure, lower level employees experienced the most cuts and (3) the current practice of replacing Federal employees with private corporations costs much more. Over the past two decades private sector workplaces in the United States, and now the Federal government workplace, have experienced so much change that previous theories, concepts, models, and expectations no longer hold. Just as private industry workplaces have been changed by downsizing, reorganizations, mergers, elimination of middle management, and outsourcing, so, too, has the Federal government workplace been fundamentally altered. Reducing the number of government workers, replacing Federal employees with private firms, increasing the number of officials with political agendas, and using harsh personnel management practices have transfigured the Federal workplace. Examples of factors that have contributed to a changed workplace include: the Civil Service Reform Act which replaced the Civil Service Commission with the Office of Personnel Management; importing private sector approaches into the government, e.g., the Grace Commission; replacing the Civil Service Retirement System with the Federal Employees Retirement System; pressure to downsize and privatize; and many elements of the National Performance Review and Government Performance and Results Act. Now that the metamorphosis away from the traditional Civil Service borne of the Pendleton Act is nearly complete (although the new paradigm is not entirely clear), questions about the effects of a changed government workplace are being raised. Some people believe the metamorphosis is from a caterpillar to a butterfly, while others think the opposite. Whether the changed Federal government is a thing of beauty or a distasteful organism will be determined over time by observations and assessments of the effects of the change. These effects will be both internal to the government workplace, itself, and external to it, involving the products, services, outputs, and outcomes it produces. This paper begins by describing some of the politically mandated changes that have altered the very foundation of the Federal government workplace over the past 20 years and made it a much less desirable place to work. Next, some of the effects of two politically mandated changes are examined: (1) downsizing or reducing the number of Americans who can work for their government and (2) contracting out or replacing government workers with private corporations. Political officials have told the media and the American public that these changes were needed to improve the government's efficiency, effectiveness, and economy. It has been suggested that these initiatives will reduce costs. However, an examination of downsizing and contracting out shows the opposite effect. While overall the Federal government has fewer employees now than in 1961, the statistics indicate that lower level employees have been cut the most:

• The number of secretaries decreased by 39% between 1992 and 1998.

• The blue collar workforce is down 40% since 1982, e.g., Supply Clerical and Technician (?35%), Accounting Technician (?24%), and Electronics Mechanic (?41%).

• Between 1993 and 1998 the number of GS‐1 to GS‐10 employees fell from 767,000 to 594,000.

• In 1983 the number of GS‐1 to GS‐10 workers exceeded GS‐11 to GS‐15 by nearly 300,000, while in 1997 GS‐11 to GS‐15 outnumbered the lower level workers by 44,000.

Although authoritative cost comparison studies are difficult to conduct because top officials have made little provision to collect information on the cost of contracting with private firms or the number of contract employees, available information indicates that it is much more expensive than using government employees. The contracting out we are talking about is not the usual kind—building ships or planes, or acquiring computer systems or special expertise not available in the government. Rather, it is contracting with private firms to do jobs that are currently being performed by Federal employees. Not satisfied with the level at which firms are being substituted for Federal employees, actions by political officials have created an environment which now favors private corporations and where they can be given work at top management's discretion, often regardless of cost. In fact, today most contracting out is done without the use of Circular A‐76 Cost Comparison Studies. There is empirical and logical evidence that shows that replacing government employees with private corporations is more expensive. For example, a study by the Department of the Army documents what people close to contracting have always known—that it is far more expensive to contract with a private firm for work than to have Federal employees do it. Logically, the government incurs additional items of cost when replacing Federal employees with private corporations. First, there is the profit that goes to the firm. Second, there is the firm's overhead which pays for corporate offices, staffs, and CEOs. Third, there are the costs of the contracting and award process and of contract administration and management. Although the worker on a government contract may be paid a little less than a government worker, the cost of the worker is only a third to a half of what the government pays the firm. Thus, replacing government workers with private firms usually costs far more and it is not unusual for it to cost two to three times as much. This paper partly is based on the authors' long experience in the Federal government. It is not based on the organizations in which they are currently employed.     

纹线中空特征在指纹比对中的应用

目的探讨纹线中空特征应用于某些残缺、特征数量不足的指纹检验中的可行性。方法引入指纹三级特征理论,从该特征的存在机理、稳定性特点及与其它类似特征的区别等进行观察。结果纹线中空特征稳定存在,且在比对工作中具有可操作性。结论纹线中空特征是对常规特征的补充,对指纹比对工作具有实际意义。     

Photoshop软件在印章印文比对检验中的应用

利用Photoshop软件的图像处理功能,对印章印文进行重叠比对,旨在为伪造印章印丈的简单比对以及检验鉴定提供一种思路。文中方法具有操作简便,精确性高的特点,可为检验鉴定工作做出初步判断。     

Comparing Sexuality,Aggressiveness, and Antisocial Behavior of Alleged Juvenile Sexual and Violent Offenders,

Sexual delinquency in juveniles is insufficiently explored in regard to the specificity of offender characteristics. The aim is to investigate relevant areas for juvenile sexual offending in a precourt, pretreatment group. Thirty‐two alleged juvenile sexual offenders (ASO) referred to by police were compared with 32 juvenile nonsexual violent offenders (VNO) on standardized measures of aggressiveness and psychopathology, antisocial behavior, substance use problems, and sexuality. Less externalizing disorders and antisocial behavior were found among the ASOs than among the VNOs. The ASO group was sexually less experienced, had less trust in their relationship abilities, fewer victimization experiences, and reported more sexual deviance, while pornography use and obscene calls were reported less often. Few juvenile sexual offenders had severe problems in the investigated areas. Including groups of offenders before court, treatment or incarceration in research appears crucial to understand the full spectrum of sexual deviance in youth and avoid misguidance due to selection factors.     

Forensic Comparison of Soil Samples Using Nondestructive Elemental Analysis

Soil can play an important role in forensic cases in linking suspects or objects to a crime scene by comparing samples from the crime scene with samples derived from items. This study uses an adapted ED‐XRF analysis (sieving instead of grinding to prevent destruction of microfossils) to produce elemental composition data of 20 elements. Different data processing techniques and statistical distances were evaluated using data from 50 samples and the log‐LR cost (C_llr). The best performing combination, Canberra distance, relative data, and square root values, is used to construct a discriminative model. Examples of the spatial resolution of the method in crime scenes are shown for three locations, and sampling strategy is discussed. Twelve test cases were analyzed, and results showed that the method is applicable. The study shows how the combination of an analysis technique, a database, and a discriminative model can be used to compare multiple soil samples quickly.     

Failure of anthropometry as a facial identification technique using high-quality photographs

Anthropometry can be used in certain circumstances to facilitate comparison of a photograph of a suspect with that of the potential offender from surveillance footage. Experimental research was conducted to determine whether anthropometry has a place in forensic practice in confirming the identity of a suspect from a surveillance video. We examined an existing database of photographic lineups, where one video image was compared against 10 photographs, which has previously been used in psychological research. Target (1) and test (10) photos were of high quality, although taken with a different camera. The anthropometric landmarks of right and left ectocanthions, nasion, and stomion were chosen, and proportions and angle values between these landmarks were measured to compare target with test photos. Results indicate that these measurements failed to accurately identify targets. There was also no indication that any of the landmarks made a better comparison than another. It was concluded that, for these landmarks, this method does not generate the consistent results necessary for use as evidence in a court of law.     

两种福利模式下的中西税权控制

西方发达国家的税权因应社会需求不断膨胀,从而引发了"福利法治国危机"。而中国在"单位型福利模式"的政策指引下,税权亦严重失范,但其问题更多地存在于公共支出柔性强、结构不合理等方面;因此,从宏观的比较视野观之,中西都面临着税权的有效规范与控制问题,但方法却是迥异的:西方欲通过控税实现"福利国"改造;中国则应以控税的方式探求适合自己的福利模式。