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Search Results: 1 - 10 of 53340 matches for " Hong Chang "
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Schistosomiasis control in China
Yuan, Hong-Chang;
Memórias do Instituto Oswaldo Cruz , 1995, DOI: 10.1590/S0074-02761995000200031
Abstract: after three decades' efforts, schistosomiasis japonica were controlled in one-third (4/12) of endemic provinces and 68.2 (259/380) of endemic counties throughout the country. the remaining 121 endemic counties are located primarily in the lake and mountainous regions. the epidemiological and ecological features of the lake and mountainous areas are different from the other endemic areas. the major schistosomiasis control efforts in china can be characterized as follows: (1) application of centralized leadership and management, since schistosomiasis control is a task not only of the ministry of public health, but also of all local governments in the endemic areas; (2) integration of actions taken by various departments or bureaus, such as agriculture, water conservation and public health; (3) promotion of mass participation; (4) organization of strong professional teams; (5) raising sufficient funds. strategies on schistosomiasis control applied in different areas are divided into three levels: (1) in the areas where the schistosomiasis has been successfully controlled, surveillance must be maintained and immediate action should be taken where new infections occur and/or vector snails are found, so that control can be reestablished quickly; (2) in the areas where schistosomiasis has been partially controlled, any residents and/or live-stock infected should be examined and treated promptly with due care, and environment modifying and/or mollusciding must be used to eliminate the remaining snails; (3) in the areas where transmission has not been controlled, the main strategy is to control morbidity. mass or selective chemotherapy with praziquental should be applied to both infected persosns and the live-stock, and environment modification for the snail-ridden areas should be taken but should be coordinated with agriculture where possible. advance cases must be treated; and epidemics of katayama fever prevented; water supply and sanitation shoud be improved and health e
Epidemiological features and control of schistosomiasis japonica in China
Hong-Chang, Yuan;
Memórias do Instituto Oswaldo Cruz , 1992, DOI: 10.1590/S0074-02761992000800037
Abstract: achievements and successes have been obtained in schistosomiasis control in china. an epidemic survey was carried out and its results analyzed.
Scientific research and field applications of polymer flooding in heavy oil recovery
Chang Hong Gao
Journal of Petroleum Exploration and Production Technologies , 2011, DOI: 10.1007/s13202-011-0014-6
Abstract: According to past experiences, polymer flood was not recommended for oil viscosity higher than 100 centipoises. In recent years, polymer flood becomes a promising technology for heavy oil recovery thanks to the widespread use of horizontal wells. This paper highlights the research advances of polymer in heavy oil recovery since 1977. In laboratory tests, polymer achieved tertiary recovery of more than 20% for heavy oil. A few field cases in China, Canada, Turkey, Suriname and Oman are also reviewed and analysed. Some field pilots have shown positive results. Field experiences indicate the major challenge facing polymer flooding effectiveness is to maintain good viscosity of polymer solution.
網路虛擬實境與情境學習的整合應用 Application of Internet Virtual Reality and Situated Learning
Chaoyun Liang,Hong Chang
Journal of Educational Media & Library Sciences , 1998,
Abstract: 無 This article introduces an ongoing project that integrates Internet virtual reality techniques with situated learning theory, and tries to find out the synthesized application. Based upon the synthesis, the authors develop a set of learning materials that can provide an environment for multiple-user participation and real-time interaction on Internet. A detailed description of the instructional design process is offered, followed by the suggestions for future research in this promising area.
Therapeutic method of integrated traditional Chinese and Western medicine in treating patients with pancreatic pseudocyst and abscess: a report of 4 cases
Chang-Hong WANG
Zhong Xi Yi Jie He Xue Bao , 2006,
Treatment of reflux esophagitis by Xuanfu Daizhe Decoction combined with pantoprazole or omeprazole: A comparative study
WANG Chang-Hong
Zhong Xi Yi Jie He Xue Bao , 2003,
Correlation of Self-Reported Breathlessness with Post Exercise Dyspnea in Obesity  [PDF]
Michael Agustin, Hong Chang, John Unterborn, Augustine Andoh-Duku
Open Journal of Respiratory Diseases (OJRD) , 2017, DOI: 10.4236/ojrd.2017.74015
Background: Dyspnea in obesity is common and dyspnea questionnaires are mostly validated for chronic respiratory diseases. The study aims to assess how modified Medical Research Council (mMRC) dyspnea scale correlates with post exercise dyspnea Borg scale in 6-minute walk test of the obese population. Methods: We performed a retrospective observational study on 342 obese patients with 6 MWT tests from February 2008 to November 2014 at a single tertiary hospital. Linear regression analysis was used to assess the relationship between mMRC and Borg dyspnea score. Fractional polynomial regression was used to analyze the relationship of mMRC and Borg scores with BMI. Results: MMRC dyspnea score was a strong predictor of post exercise dyspnea Borg score in the obese population in a univariate regression model (coefficient = 0.764, p ≤ 0.001). When adjusted to age, BMI, 6 MWT distance and PFT parameters in a multivariate regression model, the relationship remained statistically significant (coefficient = 0.587, p ≤ 0.001). The relationship was stronger in obese group with no airflow obstruction. Conclusion: In obese population, pre-exercise mMRC dyspnea score correlates significantly with post exercise dyspnea Borg score regardless of airflow obstruction. This is the first validity study regarding mMRC scale in assessing dyspnea in the obese population.
The Age Composition and Dynamics of Population in Neilingding Island ,Guangdong Province


生态学报 , 2002,
Abstract: 根据1997年1月至2000年12月的野外观察,对内伶仃岛猕猴种群年龄结构及发展趋势进行了研究,结果表明(1)内伶钉岛猕猴种群雄性比为1:98,各年龄组性比幼年组为1:1.07,青年组为1L0.93,中壮年组为1:0.6,中老年组为1:0.57,老年组为1:1.14;(2)列出了猕猴种群年龄结构图,确定了年增长率为6.9%,种群数量的动态公式是Nt=200e^0.069t;(3)预测了未来10a的猕猴种群的数量和发展,种群数量从2001年到2010年增长到1200头左右;(4)内伶仃岛猕猴种群发展的最适容纳量为900-1100头(平均1000头)。
Developmental Differences in Holistic Interference of Facial Part Recognition
Kazuyo Nakabayashi, Chang Hong Liu
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0077504
Abstract: Research has shown that adults’ recognition of a facial part can be disrupted if the part is learnt without a face context but tested in a whole face. This has been interpreted as the holistic interference effect. The present study investigated whether children of 6- and 9–10-year-olds would show a similar effect. Participants were asked to judge whether a probe part was the same as or different from a test part whereby the part was presented either in isolation or in a whole face. The results showed that while all the groups were susceptible to a holistic interference, the youngest group was most severely affected. Contrary to the view that piecemeal processing precedes holistic processing in the cognitive development, our findings demonstrate that holistic processing is already present at 6 years of age. It is the ability to inhibit the influence of holistic information on piecemeal processing that seems to require a longer period of development into at an older and adult age.
The Use Motivation of Political Satire Show and the Impacts of Viewing Frequency on Voters’ Political Efficacy and Political Cynicism—Taking Mr. Brown Show as an Example  [PDF]
Alice Yahhuei Hong, Roland Chang
Advances in Journalism and Communication (AJC) , 2019, DOI: 10.4236/ajc.2019.73005
Abstract: Political satire show, distinguished from other forms of political protests, specialize in gaining entertainment from politics. Its popularity leads to the academic researches of audience’s viewing motivation. In Singapore, even though the government has strictly controlled the traditional media, a well known political satire show Mr. Brown Show has found its way to survive. As a Singaporean-made pod cast program, Mr. Brown Show satirizes Singapore’s policy and current affairs via the Internet so that people can always download the program content. According to the research findings in the western culture, watching political satire shows could be information-motivated or entertainment-motivated. Based on the fact that no study had ever detected the motivation of people’s viewing political satire shows in Singapore, this study tried to explore the motivation of viewing Mr. Brown Show and also to figure out the casual relationship between viewing frequency and citizen’s political efficacy and political cynicism. The Nielsen Company (Singapore) Pte Ltd. was commissioned to conduct a formal online survey by using the Nielsen’s online panel which consists of Singaporean adults spanning a wide range of demographic segments. Respondent quotas were set on key demographic variables (gender and age) to ensure that the sample represents Singapore Internet users. Finally, 503 samples were collected. The results show that the motivations of the viewing include search for identity/surveillance/discontent, entertainment value/social rituals and peer influence. In addition, viewing frequency can successfully predict people’s political efficacy and political cynicism. Yet, people tend to have higher political cynicism than political efficacy after viewing the show. Moreover, internet use can also predict political efficacy and cynicism, but traditional media use is not a significant factor for the above dependent variables.
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