Studies in the sociopolitics of archaeology have shown patterns of inequality in publishing. Because this inequality affects the richness of perspectives on the past, the extent of unevenness requires continual documentation. This article explores gendered and institutionally based patterns of authorship in prominent archaeology journals, archaeology papers in general science journals, and Sapiens, a public-facing web magazine, from 2016 to 2021. We find that the representation of women is similar across these two types of journals, for authors both in the United States and abroad. Men still publish significantly more than women though the gap is narrowing due to the publication activity of recent PhDs. Using a large database of PhDs as a baseline for comparison, we find that women publish less in these venues than expected, resulting in an imbalance. Some archaeology programs have a larger presence in journal publishing than others, but this imbalance is not as pervasive as what has been observed in hiring practices. Archaeology journals exhibit healthier measures of diversity, compared to Science, in terms of the institutional affiliation of authors.

The study of Alzheimer's disease is hampered by insufficient knowledge of its cause. It can best be described as a syndrome whose clinical and pathological features, and their associations over time, need to be more carefully examined. Issues which impede our understanding of this syndrome include the lack of: (a) a singular “gold standard” for its identification; (b) longitudinal studies with appropriate comparison groups and neuropathological follow-up; and (c) standardized multifaceted clinical assessment procedures. Our awareness of the significance of these issues has led us to undertake a large-scale prospective, longitudinal investigation of 399 dementing and normal individuals at Sunnybrook Medical Centre. As a result of problems identified, it is proposed that research efforts across various Canadian centres be coordinated to best utilize available resources and expertise.

The damage caused by the Cotton Jassid to the Egyptian-type cottons in the Gezira and White Nile areas of the Sudan is very considerable. Realisation of this fact has been greatly aided by chemical control of the pest in small-scale experiments, followed by large-scale work with tractor-drawn sprayers and with helicopters fitted with spraying equipment. This paper deals primarily with examination of available records pertaining to the cotton crops in the four seasons from 1946/47 to 1949/50, preceded firstly by an introduction which emphasises the importance of yield records in the appraisal and interpretation of losses from pests, and secondly by an account of certain aspects of the pest in the Gezira Scheme.

Large-scale spraying to control the pest started in the Gezira in the crop season 1945/46; yield increases from about 1,250 feddans (acres) sprayed with 0·1 per cent. DDT emulsion were very satisfactory. In succeeding seasons increasing areas were sprayed; in 1947/48 spraying was extended to the cotton farms along the White Nile between Khartoum and Kosti; in 1949/50 the total area sprayed in the Sudan was over 150,000 feddans. Material and also methods and dates of application varied considerably.

The polydiacetylene with urethane substituents, P4BCMU, has been investigated under e-beam irradiation. A thin, ∼ (100nm), coating can be applied to a silicon wafer by spin coating from a solution in chloroform. E-beam exposure of around 20μC/cm2 renders the polymer insoluble and resistant to a CF4 /O2 plasma etch and a RIE with freon 112. Features down to .2μm have been drawn and etched in this way. X-ray Photoelectron Spectroscopy indicates only a slight change in stoichiometry and suggests the irradiated polymer has tertiary amide characteristics. Fourier Transform Infra Red and Raman spectroscopies indicate that the unsaturated carbon bonds in the backbone of the polymer are not destroyed by e-beam irradiation. Rather the main changes occur in the N-H and the C=O (carbonyl) bonds of the urethane group.