The application of a reconnaissance strategy for identifying long-term problems for a Tanzanian farming systems project

Africa’s population is growing faster than its locally produced food supply. While some regions of the world wallow in production surpluses, neither the Green Revolution nor other production boosting strategies have sunk deep roots in Africa. As a result, there is an increasing food production shortfall and an ever larger dependence on outside food aid. In response, international development agencies are developing new strategies for tackling the seemingly intractable problems of African agriculture. One of these strategies is called the farming systems research and extension approach. This approach starts with the understanding that “African agriculture has probably been less affected by technology change in the past twenty years than agriculture on any other continent” (A.I.D., 1985). It continues by developing technical interventions which are advantageous within particular “recommendation domains” defined by both social and environmental conditions.     

Laws, Models, and Real People: Choice of Chapter in Personal Bankruptcy

It has been a central assumption in bankruptcy policy debates that financially troubled persons faced with bankruptcy will respond to economic incentives and disincentives. Two provisions of the Bankruptcy Code (Chapters 7 and 13) are most commonly used by individual debtors. Under Chapter 7 debtors agree to give up all their property (n excess of state-determined exemptions) to a trustee for sale and distribution to creditors. Under Chapter 13 debtors keep all their property but agree to pay all or part of their debts over three to five years. This empirical study of fifteen hundred consumers in three states explores whether economic incentives and disincentives are in fact the chief factors influencing choice of chapter. The analysis demonstrates that while economic factors play a part, noneconomic factors are also significant, among them intra- and interstate migration, marital status, self-employment, state of residence, and local legal culture. We conclude that to explore fully how individual decisions are made, the simplistic economic model must be replaced by a more sophisticated model that accounts for both economic and noneconomic factors.     

Inhibition of bleach-induced luminol chemiluminescence

The luminol chemiluminescence presumptive test for blood is based on the mild peroxidase activity of hemoglobin in basic peroxide solution. However, this test is subject to interference by strong oxidants, certain transition metal ions, and true peroxidases. This paper reports methods for reducing the interference caused by hypochlorite-containing bleaches. Amines such as 1,2-diaminoethane react rapidly with hypochlorite without interfering significantly with the hemoglobin-catalyzed oxidation. Thus, addition of 0.1 mol/L 1,2-diaminoethane to a standard luminol-peroxide spray lead to almost complete inhibition of hypochlorite-induced chemiluminescence while satisfactory chemiluminescence was still observed from bloodstains. If time allows, an alternative method for reducing interference from hypochlorite bleach is to wait several days until the bloodstains have dried thoroughly, by which time the hypochlorite will have decomposed.     

Background correction in forensic photography. II. Photography of blood under conditions of non-uniform illumination or variable substrate color--practical aspects and limitations

The combination of photographs taken at wavelengths at and bracketing the peak of a narrow absorbance band can lead to enhanced visualization of the substance causing the narrow absorbance band. This concept can be used to detect putative bloodstains by division of a linear photographic image taken at or near 415 nm with an image obtained by averaging linear photographs taken at or near 395 and 435 nm. Nonlinear images can also be background corrected by substituting subtraction for the division. This paper details experimental applications and limitations of this technique, including wavelength selection of the illuminant and at the camera. Characterization of a digital camera to be used in such a study is also detailed. Detection limits for blood using the three wavelength correction method under optimum conditions have been determined to be as low as 1 in 900 dilution, although on strongly patterned substrates blood diluted more than twenty-fold is difficult to detect. Use of only the 435 nm photograph to estimate the background in the 415 nm image lead to a twofold improvement in detection limit on unpatterned substrates compared with the three wavelength method with the particular camera and lighting system used, but it gave poorer background correction on patterned substrates.     

Ontario court affirms that medical marijuana regulations are unconstitutional

On 7 October 2003, the Ontario Court of Appeal upheld the Ontario Superior Court of Justice decision in Hitzig, which found that the Marihuana Medical Access Regulations (MMAR) represented an unconstitutional barrier to accessing a legal supply of marijuana for persons with a recognized medical need. The Court of Appeal tailored its remedial order by striking down the second specialist test required for certain applicants, and eliminating the unconstitutional eligibility and supply provisions, rather than declaring unconstitutional the entire MMAR as the lower court had done. The court's declaration was made effective immediately, in order to maintain the prohibition for non-medicinal possession of marijuana under section 4 of the Controlled Drugs and Substances Act (CDSA), and to constitutionalize the medical exemption for marijuana possession created under the MMAR.     

Exhumation examination to confirm suspicion of fatal lead poisoning

Acute poisonings with inorganic lead compounds are exceptionally rare. In all cases of diagnosis, there are two possible sources of error: failing to recognise lead poisoning when it is present, and mistaking other diseases for lead poisoning. If exposure history is carefully taken and proper laboratory techniques are employed, the diagnosis of lead poisoning should not be difficult. In the described case of the death of a 41-year-old-man, no enzymatic disturbances characteristic of congenital erythropoietic porphyria were ascertained, and furthermore, a considerable concentration of lead was found in antemortem material, 5 months before death (blood: 1584 microg/l, urine: 531 microg/24 h). Postmortem tissue lead content in the biological material, exhumed 6 months after death, were as follows: liver, 47.6 microg/g; kidney, 4.75 microg/g; bone, 103 microg/g of sacral vertebra, 20.4 microg/g of femoral bone, 112 microg/g of pelvis; hair, 30.2 microg/g of scalp hair, 33.7 microg/g of pubic hair; nails, 13.6 microg/g. The results indicated a case of acute lead poisoning (with lead(II) oxide, as it later turned out), which manifested as acute intermittent porphyria.     

Psychopathology in women arrested for domestic violence

This study examined the prevalence of psychopathology among women arrested for violence and whether the experience of intimate partner violence (IPV) was associated with Axis I psychopathology. Women who were arrested for domestic violence perpetration and court referred to violence intervention programs (N= 103) completed measures of IPV victimization, perpetration, and psychopathology. Results revealed high rates of posttraumatic stress disorder (PTSD), depression, generalized anxiety disorder (GAD), panic disorder, substance use disorders, borderline personality disorder, and antisocial personality disorder. Violence victimization was significantly associated with symptoms of psychopathology. Logistic regression analyses showed that sexual and psychological abuse by partners were associated with the presence of PTSD, depression, and GAD diagnoses. Results highlight the potential importance of the role of violence victimization in psychopathology. Results suggest that Axis I and Axis II psychopathology should routinely be assessed as part of violence intervention programs for women and that intervention programs could be improved by offering adjunct or integrated mental health treatment.     

Death of an infant involving benzocaine

This report describes the death of a four-month-old Hispanic male which may be related to benzocaine toxicity. A toxicological evaluation revealed benzocaine at a concentration of 3.48 mg/L, and postmortem methemoglobin of 36% (normal 0.4-1.5). Methemoglobinemia is a complication of benzocaine toxicity. In light of the toxicology findings, the coroner investigated the source of the benzocaine and discovered that the child was treated with Zenith Goldline Allergen Ear Drops containing 0.25% w/v benzocaine and 5.4% w/v antipyrine. There was an admission by a caregiver that on the day prior to the child's death, he had been treated with three times the prescribed dose. Blood benzocaine concentrations in nine other unrelated cases were determined and concentrations ranged from <0.05-5.3 mg/L (mean 1.48 mg/L). Seven of the nine cases were positive for drugs of abuse, and one additional case was described as a known drug user. Methemoglobin in these benzocaine positive cases ranged from 6-69%; however, methemoglobin concentrations in postmortem cases are frequently elevated and should be interpreted with caution. The unknown significance of the benzocaine, and the circumstances of the case raise questions about the ultimate attribution of this death to SIDS.