Technology transfer,the environment,and the third world: Having one's cake and eating it

With the end of the Cold War, the major trend of the next century will be the development of competitive export economies in third world countries. In this paper, an on-going experiment in Mexico is reported. The experiment features the transfer of technology with a minimum adverse environmental impact. The goal is to develop sustainable integration into global markets by transferring technology that is both cost and quality competitive and environmentally safe. The target group is Mexican subsistence producers.His most recent book is Volunteerism and World Development: Pathway to a New World (Praeger).     

Image analysis of gunshot residue on entry wounds: II – A statistical estimation of firing range

A statistical investigation of the relationship between firing range and the amount and distribution of gunshot residue (GSR), used automated image analysis (IA) to quantify GSR deposit resulting from firings into pig skin, from distances ranging between contact and 45 cm. Overall, for a Ruger .22 semi-automatic rifle using CCI solid point, high velocity ammunition, the total area of GSR deposit on the skin sections decreased in a non-linear fashion with firing range. More specifically there were significant differences in the amount of GSR deposited from shots fired at contact compared with shots fired from distances between 2.5 and 45 cm; and between shots fired from a distance of 20 cm or less, with shots fired at a distance of 30 cm or more. In addition, GSR particles were heavily concentrated in the wound tract only for contact and close range shots at 2.5 cm, while the particle distribution was more uniform between the wound tract and the skin surfaces for shots fired from distances greater than 2.5 cm. Consequently, for future scientific investigations of gunshot fatalities, once standards have been established for the weapon and ammunition type in question, image analysis quantification of GSR deposited in and around the gunshot wound may be capable of providing a reliable, statistical basis for estimating firing range.     

Nuclear and mitochondrial DNA quantification of various forensic materials

Due to the different types and quality of forensic evidence materials, their DNA content can vary substantially, and particularly low quantities can impact the results in an identification analysis. In this study, the quantity of mitochondrial and nuclear DNA was determined in a variety of materials using a previously described real-time PCR method. DNA quantification in the roots and distal sections of plucked and shed head hairs revealed large variations in DNA content particularly between the root and the shaft of plucked hairs. Also large intra- and inter-individual variations were found among hairs. In addition, DNA content was estimated in samples collected from fingerprints and accessories. The quantification of DNA on various items also displayed large variations, with some materials containing large amounts of nuclear DNA while no detectable nuclear DNA and only limited amounts of mitochondrial DNA were seen in others. Using this sensitive real-time PCR quantification assay, a better understanding was obtained regarding DNA content and variation in commonly analysed forensic evidence materials and this may guide the forensic scientist as to the best molecular biology approach for analysing various forensic evidence materials.     

Reviews

Wendy Brown, States of Injury: Power and Freedom in Late Modernity (Princeton University Press) Princeton, New Jersey, 1995

Anne Edwards and Susan Magarey (eds), Women in a Restructuring Australia: Work and Welfare (Allen & Unwin) St Leonards, NSW, 1994.

Tanya Castleman, Margaret Allen, Wendy Bastalich and Patrick Wright, Limited Access: Women's Disadvantage in Higher Education Employment (National Tertiary Education Union) Melbourne, 1995.

Wendy Weeks (in collaboration with women in women services), Women Working Together: Lessons from Feminist Women's Services (Longman Cheshire) Melbourne, 1993.

Shurlee Swain with Renate Howe, Single Mothers and Their Children: Disposal, Punishment and Survival in Australia (Cambridge University Press) Cambridge, 1995.

Kathleen Barry, The Prostitution of Sexuality (New York University Press) New York, 1995.

Susanne Kappeler, The Will to Violence: The Politics of Personal Behaviour (Spinifex) Melbourne, 1995.

Jill Bavin‐Mizzi, Ravished: Sexual Violence in Victorian Australia (University of New South Wales Press) Sydney, 1995.

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Ruth Frankenberg, White Women, Race Matters: The Social Construction of Whiteness (Routledge) London, 1993.