An extended classical solution of the droplet growth problem

Problems of applying the classical kinetic theory to the growth of small droplets from vapor are examined. A solution for the droplet growth equation is derived which is based on the assumption of a diffusive field extending to the drop surface. The method accounts for partial thermal and mass accommodation at the interface and the kinetic limit to the mass and heat fluxes, and it avoids introducing the artifact of a discontinuity in the thermal and vapor field near the droplet. Consideration of the environmental fields in spherical geometry utilizing directional fluxes yields boundary values in terms of known parameters and a new Laplace transform integral

The Canadian Input: The 34th Executive Committee UNHCR Geneva, Oct. 14, 1983

Ambassador J. Alan Beesley, in the opening address to the UNHCR Executive Committee, genuflected approriately to support the High Commissioner's efforts with respect to the fundamental issue of protection and the need to address the root causes of refugee situations as outlined in the Aga Khan's report. Canada focussed on four issues, and it is not clear whether the ordering is significant: repatriation, local integration in countries of asylum, resettlement in third countries, and utilization of traditional settlement assistance to lessen both the likelihood and the impact of refugee situations. Through the work of the subcommittee on protection, Canada assisted in developing a set of principles for the review of manifestly unfounded claims to refugee status, concurred in an agreement on a trial project for rescue at sea to which Canada makes a contribution, and urged continuing effort to develop a policy on preventing military attacks on refugee camps (on which there was no consensus). Canada also supported the promotion of existing legal instruments for the protection of refugees and urged the development of new, flexible and imaginative protection techniques. The review of specific refugee situations around the world was supportive and diplomatic; it was neither analytic nor critical

Ultrastructural Assessment of Lesion Development in the Collared Rabbit Carotid Artery Model

Cellular reactions associated with the formation of lesions generated in the carotid artery of rabbits fed either normal or high cholesterol diets by the placement of a flexible, silastic collar around the artery, were studied by electron microscopy. Endothelial cells remained as a monolayer throughout lesion development. The endothelial cell surface in both experimental and sham operated carotids, 4 hours and 8 hours after the initiation of the experiments, were covered with platelets and leukocytes. Neutrophils were present until 7 days in the arteries from within the collar of animals maintained on a normal diet, but only to 1 day in the cholesterol-fed animals. Neutrophils were observed within the medial layer. Few monocytes were identified. An intimal lesion had formed after 7 days in both groups of animals. Macrophage-like cells and foam cells were identified in the cholesterol-fed animals. The size of the lesion increased up to 56 days in animals maintained on a high cholesterol diet, but regression occurred after the 14-days sample in those animals on a normal diet. Concurrently a proportion of the smooth muscle cells changed from contractile to synthetic phenotype within the intimal and medial region of the collared artery of both high cholesterol and normocholesterolaemic animals. Lesions did not form in the contralateral, sham operated arteries

An analytic framework for exploring sampling and observation process biases in genome and phenome‐wide association studies using electronic health records

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/155932/1/sim8524.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/155932/2/SIM8524-sup-0001-supinfo.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/155932/3/sim8524_am.pd