356,834 research outputs found
DIETARY CONDITIONS AND DIFFERENTIAL ACCESS TO FOOD RESOURCES AMONG THE VARIOUS CLASSES DURING THE HAN PERIOD
In this thesis, I study how food resources and dietary conditions were determined by social and economic status during the Han period in China, B.C. 206~A.D.220. Even though earlier scholars have published research concerning the Chinese food culture of this period, these studies were limited in that they only illustrated the dietary culture of the upper class or the available food resources in one geographic area. Also, without any persuasive data, it has been assumed by these earlier scholars that there were big differences in food resources and food consumption between the upper and lower classes. In this thesis, for comparison among the classes, I divide the social and economic classes into five stratified groups: nobles, officials, peasants, soldiers and convicts. After a brief introduction of the nature of each social class, I examine the food resources and nutritional condition of each group using information such as the wealth and income of each group, the market price of food resources, the agricultural products of peasants, and the amount of food distribution to soldiers and convicts. I found these data from archaeological remains, received historical records and pictorial data, and excavated texts. This research shows a broader view of Chinese dietary condition focusing not only on the variety of food resources of nobles, but also on the different food accessibilities among the officials, and the food deficiencies of peasants. It also deals with the situations of food supply for soldiers and convicts in an effort to reveal the true dietary consumption and nutritional conditions for all Chinese. This research proves that the various classes during the Han period in China had different food resources and dietary conditions
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Comparison of the toxicokinetics of daidzein and bisphenol A in pregnant and non-pregnant DA/Han rats
Potentially adverse human and environmental effects due to hormone mimicry of environmental estrogens are a matter of current concern. Environmental estrogens belong to the socalled endocrine active compounds (EAC) and may alter signalling processes of the endocrine system leading to a broad range of effects during fetal and postnatal development, puberty, adulthood, and aging. A number of synthetic chemicals as well as several plant-derived compounds, socalled phytoestrogens, are known to have weak estrogenic activity. The present study is part of the risk assessment of the weak environmental estrogens daidzein and bisphenol A. The isoflavone daidzein is an important phytoestrogen with respect to dietary exposure (soy beans and soy products) whereas bisphenol A is an industrial chemical that occurs at much lower concentrations as a contaminant in food. The toxicokinetics of these compounds in female pregnant and non-pregnant DA/Han rats after single intravenous application were compared by the use of the Mann-Whitney- U-statistic. --Bisphenol A,daidzein,xenoestrogens,phytoestrogens,endocrine active compounds,Mann-Whitney-U-test
The relationship between civic attitudes and voting intention : an analysis of vocational upper secondary schools in England and Singapore
From 2009 to 2011, a team from the Centre for Learning and Life Chances in Knowledge Economies and Societies carried out a mixedmethods study of young people in England and Singapore. With regard to civic attitudes, the study showed that there was a greater sense of political self-efficacy and collective (school) efficacy in Singapore than in England. In addition, the group in Singapore scored higher on future voting relative to the group in England. Further, while both political self-efficacy and collective (school) efficacy were correlated with future voting in England, only the latter was correlated in the case of Singapore. For some, the results may seem counter-intuitive. The article reflects on these results, particularly those relating to democratic outcomes
sj-pdf-1-han-10.1177_15589447221092059 – Supplemental material for Socioeconomic Disparities in Surgical Care for Congenital Hand Differences
Supplemental material, sj-pdf-1-han-10.1177_15589447221092059 for Socioeconomic Disparities in Surgical Care for Congenital Hand Differences by Christopher L. Kalmar and Brian C. Drolet in HAND</p
Prochetostoma Han
Key to the three known species of Prochetostoma Han 1 Scutum dark brown; crossvein r-m situated distinctly proximal to mid length of cell dm; short brown marking extending from costal margin at middle of cell r 1 separate from transverse marking covering crossvein r-m......... P. contemnens (Hering) - Scutum entirely yellow brown; crossvein r-m situated slightly distal to mid length of cell dm; short brown marking extending from costal margin at middle of cell r 1 connected to transverse marking through crossvein r-m(Fig. 3 b)................. 2 2 Transverse marking covering crossvein r-m connected or nearly connected to apical C-shaped band covering crossvein dm-cu at posterior margin of cell cua; apex of C-shaped band not expanded; Ƥ with 3 pairs of lateral dark markings on T 3–5; 3 abdomen with markings only on T 5............................................................. P. bhutanicum Han - Transverse marking covering crossvein r-m clearly separate from apical C-shaped band covering crossvein dm-cu at posterior margin of cell cua; apex of C-shaped band expanded (Fig. 3 b); both sexes with 3 pairs of lateral dark markings on T 3–5................................................................................. P. expandens Sueyoshi & HanPublished as part of Sueyoshi, Masahiro & Han, Ho-Yeon, 2011, Prochetostoma expandens (Diptera: Tephritidae) sp. n., a fruit parasite of Ilex integra Thunberg (Aquifoliaceae) in Japan, pp. 39-50 in Zootaxa 2784 on page 47, DOI: 10.5281/zenodo.20204
Charles C. Han
CHARLES C. HAN
NBS/NIST: 1974 - 2002
Birth: January 18, 1944 in Sichuan, China
Education:
National Taiwan University, BS (Chemical Engineering), 1966
University of Houston, MS (Physical Chemistry), 1969
University of Wisconsin, Madison, PhD, (Physical Chemistry), 1973
Principal Fields:
Polymer Physics, Physical Chemistry, Neutron, X-ray and Light Scattering, Polymer blends and alloys.
Positions held at NBS/NIST:
Research Scientist, Material Science and Engineering Laboratory 1974-2002
Group Leader, Polymer Blends Group, Material Science and Engineering Laboratory 1985-1995
Group Leader, Multiphase Materials Group, Material Science and Engineering Laboratory 1999-2002
NIST Fellow, 1995-2002
Honors:
Bronze Medal, Department of Commerce, 1980
Silver Medal, Department of Commerce, 1982
Dillon Medal, American Physical Society, 1984
Gold Medal, Department of Commerce, 1986
Samuel Wesley Stratton Award for Best Research, NIST, 1990
Humboldt Senior Research Award, Alexander von Humboldt Foundation, Germany, 1995
High Polymer Physics Prize, American Physical Society, Division of High Polymer Physics, 1999
Memberships:
American Physical Society (Fellow)
American Chemical Society
American Physical Society
Sigma Xi
Publications:
More than 280 Scientific Papers in Archived Journals and Books including 4 US Patents:
A. Z. Akcasu, M. Benmouna, and C. C. Han, "Interpretation of Dynamic Scattering from Polymer Solutions", Polymer, 21, 866 (1980).
T. Sato, and C. C. Han, "Dynamics of Concentration Fluctuation in a Polymer Blend on Both Sides of Phase Boundary", J. Chem. Phys., 88, 2057 (1988).
E. K. Hobbie, D. W. Hair, A. I. Nakatani and C. C. Han,"Crossover to Strong Shear in a Low Molecular Weight Critical Polymer Blend", Phys. Rev. Lett., 69, 1951 (1992).
M. Motowoka, H. Jinnai, T. Hashimoto, Y. Qiu, and C. C. Han, "Phase Separation in Deuterated Polycarbonate/Poly(methylmethacrylate) Blend Near Glass Transition Temperature, J Chem. Phys., 99, 2095 (1993)
Designing bidding strategies in sequential auctions for risk averse agents
Designing efficient bidding strategies for sequential auctions represents an important, open problem area in agent-mediated electronic markets. In existing literature, a variety of bidding strategies have been proposed and have been shown to perform with varying degrees of efficiency. However, most of strategies proposed so far do not explicitly model bidders attitudes towards risk which, in mainstream economic literature, is considered an essential attribute in modeling agent preferences and decision making under uncertainty. This paper studies the effect that risk profiles (modeled through the standard Arrow-Pratt risk aversion measure), have on the bidders strategies in sequential auctions. First, the sequential decision process involved in bidding is modeled as a Markov Decision Process. Then, the effect that a bidders risk aversion has on her decision theoretic optimal bidding policy is analyzed, for a category of expectations of future price distributions. This analysis is performed separately for the case of first price and second-price sequential auctions. Next, the bidding strategies developed above are simulated, in order to study the effect that an agents risk aversion has on the chances of winning a set of complementary-valued items. The paper concludes with an experimental study of how the presence of risk-averse bidders affects both bidder profits and auctioneer revenue, for different market scenarios of increasing complexity
Han Gyeol Kim
학위논문(석사)아주대학교 일반대학원 :의학계열,2012. 8I. INTRODUCTION 1
II. MATERIALS AND METHODS 2
A. Study subjects 3
B. Questionnaire 3
C. Genotyping 3
D. Statistical analysis 4
III. RESULTS 5
IV. DISCUSSION 9
V. CONCLUSION 12
REFERENCES 13
국문요약 16MasterBackground: G-protein beta3 subunit (GNB3) C825T polymorphism alters intracellular signal transduction, which may lead to motor or sensory abnormalities of the gastrointestinal tract. The aim of the present study was to evaluate the association of the GNB3 C825T polymorphism with susceptibility to overlap syndrome of functional dyspepsia (FD) and irritable bowel syndrome (IBS) in a Korean population.
Methods: One hundred sixty-seven patients with FD alone, 60 patients with IBS alone, 85 patients with the overlap of FD and IBS, and 434 asymptomatic healthy subjects participated in the study. Genotyping for GNB3 C825T polymorphism was performed using their blood samples.
Results: No association of genotype in subjects with FD alone, IBS alone or overlap phenotype compared to that in controls was detected. The frequency of GNB3 C825T CT and TT genotypes relative to the CC genotype for the phenotypes of FD alone, IBS alone, and the coexistence of FD and IBS did not significantly differ. Comparison of the TT genotype with the CC/CT genotype showed no significant association for each phenotype group.
Conclusions: There is no apparent association of the GNB3 C825T polymorphism with the susceptibility to FD, IBS or the overlap of FD and IBS. A larger-scale study and further investigation on other candidate genes are required
Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation
The desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters
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