Survey of the Airborne Pollens in Seoul, Korea

Abstract

We study the Landau-Ginzburg mirror of toric/non-toric blowups of (possibly non-Fano) toric surfaces arising from SYZ mirror symmetry. Through the framework of tropical geometry, we provide an effective method for identifying the precise locations of critical points of the superpotential, and further show their non-degeneracy for generic parameters. Moreover, we prove that the number of geometric critical points equals the rank of cohomology of the surface, which leads to its closed-string mirror symmetry due to Bayer's earlier result. Contents 1. Introduction 1 2. The SYZ mirror of a log Calabi-Yau surface 6 3. Critical points of Laurent Polynomials 16 4. Singularities of mirror Landau-Ginzburg potentials 20 5. Homological Mirror Symmetry 43 Appendix A. Estimates for the second-order expansion of W 50 References 52

Identification and characterization of the major allergen of the Humulus japonicus pollen

“…The Humulus pollen is one of the most prevalent weed pollens in the environment of Korea and China [1][2][3][4], but its clinical significance has not yet been well recognized. Recently, some clinical studies have emphasized the allergenic roles of Humulus pollens during the autumn in Korea and China [4][5][6][7][8].…”

“…The Humulus pollen is one of the most prevalent weed pollens in the environment of Korea and China [1][2][3][4], but its clinical significance has not yet been well recognized.…”

“…Humulus, which belongs to the Cannabis family, is a widespread weed in Korea and China [1][2][3][4]. It is wind-borne and has a flowering period that lasts from August to October in these regions.…”

“…It is wind-borne and has a flowering period that lasts from August to October in these regions. According to aerobiological studies in Korea and near Beijing in China, the Humulus pollen count is greater than mugwort or ragweed and accounts for about 18% of total pollen during the pollination period [1,3,4]. Although numerous people suffer from Humulus pollinosis, only a few reports on this allergy have been published [4][5][6][7].…”

Current Status of Standardization of Inhalant Allergen Extracts in Korea

“…Tree pollens from alder, birch, and oak are known to be important in spring, mainly from March to May, whereas weed pollens from Japanese hop, sagebrush, and ragweed are important in autumn, mainly from August to September 21. Currently, most of the commercial tree and weed pollen extracts are not standardized and are provided as a protein nitrogen unit (PNU) or weight per volume unit (w/v, 1:10 to 1:40).…”