Population, sex ratios and Development in Greenland

Abstract During the 20th century, Greenland society experienced a dramatic transformation from scattered settlements based on hunting, with mostly turf dwellings, to an urbanizing post-industrial economy. This transformation compressed socioeconomic development that took centuries to millennia elsewhere into a few generations. The incomplete demographic transition that accompanied this development broadly followed the classical pattern, but with distinctive variations relating to Greenland\u27s Arctic environment, sparse population, and historical interactions between two cultures: an indigenous Inuit majority and an influential Danish minority. One heritage from Danish colonial administration, and continued more recently under Greenland Home Rule, has been the maintenance of population statistics. Time series of demographic indicators, some going back into the 18th century, provide a uniquely detailed view of the rapid hunting-to-post-industrial transition. Changing sex ratios-an early excess of females, shifting more recently to an excess of males-reflect differential impacts of social, economic, and technological developments

West Greenland\u27s Cod-to-Shrimp Transition: Local Dimensions of Climatic Change

Abstract West Greenland\u27s transition from a cod-fishing to a shrimp-fishing economy, ca. 1960-90, provides a case study in the human dimensions of climatic change. Physical, biological, and social systems interacted in complex ways to affect coastal communities. For this integrated case study, we examine linkages between atmospheric conditions (including the North Atlantic Oscillation), ocean circulation, ecosystem conditions, fishery activities, and the livelihoods and population changes of two West Greenland towns: Sisimiut, south of Disko Bay, and Paamiut, on the southwest coast. Sisimiut prospered as a fishing center through the cod-to-shrimp transition. Paamiut, more specialized in cod fishing, declined. Their stories suggest two general propositions about the human dimensions of climatic change. First, socially important environmental changes result not simply from climatic change, but from interactions between climate, ecosystem, and resource usage. Second, environmental changes affect people differentially and through interactions with social factors. Social networks and cohesion (social capital) are important, in addition to skills (human capital), investments (physical capital), and alternative resources (natural capital): all shape how the benefits and costs are distributed

Hot-wire and hot-film anemometry

The circuit techniques, electronics, dynamic properties, and the applications of the anemometers are given

Gender Bias and Organ Transplantation in Nepal

Women in Nepal are less likely to receive proper, high quality medical care than their male relatives. Live-donor kidney transplantation provides a compelling example of such disparities, as 84% of recipients are male, 75% of donors are female and most kidneys are transferred from mother to son and from wife to husband. In the case of transplantation, women are not just denied healthcare, they are also responsible for the health of their male kin. Based on semi-structured ethnographic interviews with transplant patients, organ donors, dialysis patients and relatives, this paper elaborates on the social and economic factors that have created an extreme gender bias in transplantation. We argue that women, whose livelihoods largely depend on their husbands, donate kidneys out of self-protection and a sense of duty. Conversely, men receive kidneys but rarely donate them to women, because the health of men is a more productive economic investment than the health of women. We reject the notion that wives are directly coerced or pressured into donating kidneys to their husbands. Rather, we argue that female kidney donors make thoughtful, independent decisions that serve their best interests, and allow them to assert some control over their lives. It is, however, Nepal’s patriarchal society that both necessitates and limits such assertions of power

A wind tunnel investigation of the shape of uncharged raindrops in the presence of an external, electric field

Results of a wind tunnel experiment in which electrically uncharged water drops of 500 to 3000 microns equivalent radius are freely suspended in the vertical air stream of the UCLA cloud tunnel are presented. During this suspension the drops were exposed to external vertical electric fields of 500 to 8,000 volts/cm. The change in drop shape with drop size and electric field strength was noted and is discussed in the light of theoretical work cited in the literature which unfortunately does not take into account the effects of air flow past the drop. The wind tunnel study is documented by stills from a 16 mm film record that demonstrates the shape of water drops in response to both hydrodynamic and electric forces

Coupling of shells in a carbon nanotube quantum dot

We systematically study the coupling of longitudinal modes (shells) in a carbon nanotube quantum dot. Inelastic cotunneling spectroscopy is used to probe the excitation spectrum in parallel, perpendicular and rotating magnetic fields. The data is compared to a theoretical model including coupling between shells, induced by atomically sharp disorder in the nanotube. The calculated excitation spectra show good correspondence with experimental data.Comment: 8 pages, 4 figure

Theory of Bubble Nucleation and Cooperativity in DNA Melting

The onset of intermediate states (denaturation bubbles) and their role during the melting transition of DNA are studied using the Peyrard-Bishop-Daxuois model by Monte Carlo simulations with no adjustable parameters. Comparison is made with previously published experimental results finding excellent agreement. Melting curves, critical DNA segment length for stability of bubbles and the possibility of a two states transition are studied.Comment: 4 figures. Accepted for publication in Physical Review Letter

Final report, U.S. Bureau of Mines Contract number H0180895

Includes bibliographical references (leaf 10)Final reportPrepared for U.S. Dept. of the Interior, Bureau of Mines H018089

The Bonding of Felted Glass Fibers by the Use of Ordinary Papermakers\u27 Wet-Strength Resins

Papermakers\u27 wet-strength resins have been added to felted glass fibers as to increase the strength of the fibers. On the basis that a stronger sheet of paper made from glass fibers could be put to many uses, experiments were of two types. First, an excess of wet-strength resins were added to the fibers. Second, handsheets made of one hundred per-cent glass fibers were dipped into a two per-cent resin tub-sizing solution. Favorable results were obtained in both cases