A comparison study of hair examination methodologies

A study was conducted to investigate the accuracy between two methods of hair analysis: PCR-STR DNA analysis and microscopic comparison analysis. Standard sets of pubic hairs were collected from volunteers, and unknown sets were generated from these samples. Three out of five (60%) of the hairs analyzed produced full DNA profiles that were correctly matched to the standard sets. DNA analysis was inconclusive (partial or no DNA profile) for two out of five (40%) of the samples. In contrast, the microscopic comparison analysis correctly matched four out of five (80%) of the samples to the standard sets but mis-identified one out of five (20%) of the samples. These results reinforce the practice of preliminary microscopic hair examination in narrowing down a set of hairs for DNA analysis. Microscopic comparison analysis is sufficiently reliable to remain a rapid and inexpensive method for forensic hair analysis.     

The use of Polilight in the detection of seminal fluid, saliva, and bloodstains and comparison with conventional chemical-based screening tests

Biological stains can be difficult to detect at crime scenes or on items recovered from crime scenes. The use of a versatile light source may assist in their detection. The ability of Polilight to locate potential semen, saliva, and blood stains on a range of substrates and at different dilutions was tested. We also tested the use of Polilight in comparison with conventional chemical-based presumptive screening tests such as acid phosphatase (AP), Phadebas, and luminol, often used in casework for detecting potential semen, saliva, and blood stains, respectively. The Polilight was able to locate stains that were not apparent to the naked eye. The color of the material on which a stain is deposited can have an effect on the detectibility of the stain. The Polilight was found to be comparable with the AP and Phadebas tests in terms of its sensitivity. In a comparative study between the AP test and Polilight on 40 casework exhibits, one false-negative result was observed when using the Polilight. On a series of mock casework exhibits it was determined that the Polilight can be used successfully to locate saliva stains for DNA analysis. The sensitivity of luminol for detecting potential bloodstains was greater than that of Polilight; however the Polilight has particular application in instances where a bloodstain may have been concealed with paint. Overall, the Polilight is a relatively safe, simple, noninvasive, and nondestructive technique suitable for use in forensic casework.     

EFFECTS OF SKILL-BASED VERSUS INFORMATION-BASED DIVORCE EDUCATION PROGRAMS ON DOMESTIC VIOLENCE AND PARENTAL COMMUNICATION

This study used a pre- and postevaluation with a control group to compare the effectiveness of two divorce education programs: skill-based Children in the Middle (CIM) and informationbased Children First in Divorce (CFD). Each treatment group consisted of approximately 125 divorcing parents mandated to attend divorce education in Florida. The control group consisted of 64 divorcing parents not mandated to attend divorce education in Alabama for lack of a program. Treatment and control parents lived in comparable cities with comparable demographics. Results indicate that CIM, not CFD, improved parental communication. Both CIM and CFD reduced child exposure to parental conflict. Neither program had effects on domestic violence, actual parental conflict, or child behavior problems. Across all groups, parents with greater divorce knowledge and communication skills experienced more reciprocal discussions with the other parent, less parental conflict, less domestic violence, and they exposed children to less conflict.     

Interdisciplinary synthesis

One of the most significant features of scientific advance has been the gradual concrescence of previously distinct theories, methods, disciplines and cognitive modes. Proponents of the conception that the policy sciences should comprise a rationally structured supradiscipline rightly emphasize the desirability of accelerating this slow process of intellectual unification. However, this enterprise continues to be obstructed by failure to realize that interdisciplinary principles sufficient to generate a legitimate unification of scientific and humane concerns of the policy sciences can issue only from philosophical reconstruction. A normative (value-sensitive) mode of general systems analysis adequate to the demands of adaptive social-institutional systems must constitute an epochal modification of the conventional perspective of scientific inquiry.Under the assumption that the magnitude of the task will not dissuade us from the aim of establishing interdisciplinary principles, attention is concentrated here on a factorization of the specific metatheoretic projects that are thought to be entailed: (1) selection of primitive concepts and commitments of a system-theoretic mode of rational inquiry, and (2) institution of an attending set of rational canons for normative systems analysis.This article is based on material to be published in a forthcoming volume,Toward Revitalization of the Contemporary University: Essays Utilizing General Systems and Cybernetic Concepts to Reorient Universities for Greater Social and Human Relevance in the Modern World, edited by R. F. Ericson, Director, Interdisciplinary Systems and Cybernetics Project, Program of Policy Studies in Science and Technology, George Washington University (Gordon and Breach: New York, 1972). Material for this article derives from one element of a program of methodological research for management science conducted with support of The Office of Naval Research, Contract No. N00014-70-C-0328, at Research Analysis Corporation, McLean, Virginia. The conclusions expressed, however, are those of the authors alone. They should not be interpreted as representing the official views of any supporting organization.     

Why should disclosure rules subsidize informed traders?

This article justifies the existence of disclosure provisions as part of the securities laws. Securities prices may deviate from the securities' underlying values due to “irrationalities.” Market efficiency (i.e., the accuracy of securities' prices) materializes through the trading of investors who observe and attempt to profit from these inefficiencies. The danger of false prices deters the corrective trading of these “informed traders”. This article argues that disclosure rules provide them with costless information, essentially subsidizing their activity. The cost of this subsidy is borne by the corporation, i.e., all shareholders, of which informed traders are only a fraction. Long-term shareholders would not subsidize efficiency absent disclosure rules because, they do not trade, and they do not reap the benefits of accurate prices. This subsidy fosters short-term uninformed shareholdings and, thus, increases trading volume and capital market liquidity.     

Developments in juvenile justice during the decade of the 70s: Juvenile detention facilities

A number of important developments in juvenile justice during the decade of the 70s are identified. Data were obtained from a sample of juvenile detention facilities in the late 1960s and again, from the same sample, in the late 1970s. The data obtained included the perceived purpose of detention, information concerning the detainees and personnel, and procedural and program information. The two sets of data were compared to determine whether the developments in the juvenile justice system were reflected in the detention segment of the system.     

RECONCILING THE IRRECONCILABLE? THE RESOURCE ASSESSMENT COMMISSION,RESOURCES POLICY AND THE ENVIRONMENT*

Abstract: This paper investigates the place of the Resource Assessment Commission (RAC) in the reform of resource policy-making undertaken by the Hawke government in the aftermath of its experience of the Wesley Vale pulp-mill dispute. The paper argues that the RAC was seen as a foundation upon which the reformed process would rest. The RAC's role would conform to the essence of “accordism”—that is, it would seek to depoliticise information and scientific data by filtering the wide range of inputs at the evaluative stage whilst attempting to reconcile hitherto irreconcilable interest groups from the development and environment sides of the land-use debate. The paper begins by exploring the origins of the RAC. It then reviews the RAC in action and concludes by analyzing the role of the commission within the broader context of the Hawke government's pursuit of “consensus politics”.     

Children's Conceptual Knowledge of Lying and Its Relation to Their Actual Behaviors: Implications for Court Competence Examinations

Child witnesses must undergo a competence examination in which they must show appropriate conceptual understanding of lying and truth-telling, and promise to tell the truth. Three experiments (Ns = 123, 103, 177) were conducted to address the assumptions underlying the court competence examination that (1) children who understand lying and its moral implications are less likely to lie and (2) discussing the conceptual issues concerning lying and having children promising to tell the truth promotes truth-telling. Both measures of lying and understanding of truth- and lie-telling were obtained from children between 3 and 7 years of age. Most children demonstrated appropriate conceptual knowledge of lying and truth-telling and the obligation to tell the truth, but many of the same children lied to conceal their own transgression. Promising to tell the truth significantly reduced lying. Implications for legal systems are discussed.