1954. To be sure, Ball saw the appeal of the Korea, Munich, and dominochain analogies, but in each, he also saw serious weaknesses; more important, he felt he saw deeper similarities to the situation the French had faced, which led him to his gloomy but accurate predictions of what would happen to American troops if they went in. I found this discussion enlightening, but it left me wondering, W...

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The paper proposes a model for measuring and valuing biodiversity based on evolutionary information, called the phylogenetic tree model. While avoiding the strong restrictions of Weitzman’s [Quart. J. Econ. 107 (1992) 363] “cladistic” approach, the phylogenetic tree model retains much of the mathematical simplicity of the cladistic model. In particular, in the phylogenetic tree model the divers...

A patient's position changes in every CBCT scan despite patient alignment protocols. However, there have been studies to determine image quality differences when an object is located at the center of the field of view (FOV). To evaluate changes in the image quality of the CBCT scan according to different object positions, the image quality indexes of the Alphard 3030 (Alphard Roentgen Ind., Ltd...

In this paper, we report on the synthesis of Cu nanoparticles through a single-precursor route by controlling the growth temperature. Selective adsorption of oleylamine on various crystal planes may play an important role in the growth process. The understanding of this self-assembling process will help us develop reliable and reproducible methods to synthesis other three dimensional nanostruct...

BACKGROUND Plain film radiography (x-ray) is often the initial study in patients with suspected small bowel obstruction (SBO) to expedite patient care. OBJECTIVE To compare bedside ultrasonography (US) and x-ray for the detection of SBO. METHODS This was a prospective study using a convenience sample of patients presenting to the emergency department (ED) with abdominal pain, vomiting, or o...

We develop a technique to compute asymptotic expansions for recurrent sequences of the form an+1 = f(an), where f(x) = x − axα + bxβ + o(xβ) as x → 0, for some real numbers α, β, a, and b satisfying a > 0, 1 < α < β. We prove a result which summarizes the present stage of our investigation, generalizing the expansions in [Amer. Math Monthly, Problem E 3034[1984, 58], Solution [1986, 739]]. One ...

Crawford, T., and Levene, C. I. (1952). 7. Path. Bact., 64, 523. Duguid, J. B. (1946). Ibid., 58, 207. Gunning, A. J., Pickering, G. W., Robb-Smith, A. H. T., and Russell, R. W. R. (1964a). Quart. 7. Med., 33, 133. (1964b). Ibid., 33, 155. McLetchie, N. G. B. (1952). Amner. 7. Path., 28, 413. Ross, J. P. (1936). Proc. roy. Soc. Med., 29, 872. Russell, R. W. R. (1963). Lancet, 2, 1354. Skovborg,...

Pelton wheel is the only hydraulic turbine of the impulse type in common use, is named after an American engineer Laster A Pelton, who contributed much to its development around the year 1880. Therefore this machine is known as Pelton turbine or Pelton wheel. It is an efficient machine particularly suited to high heads, many modifications is being suggested up to now the major modification was ...

As well known, spacelike proton form factors expressed in the Breit frame may be interpreted as the Fourier transform of static space distributions of electric charge and current. In particular, the electric form factor is simply the Fourier transform of the charge distribution F (q) = ∫ e ρ(r)dr. We don’t have an intuitive interpretation of the same level of simplicity for the proton timelike ...