Sexual agreements and intimate-partner violence among male couples

Objectives: In the United States, HIV continues to disproportionately affect men who have sex with men. One promising area of research that may inform the development of behavioral interventions among male–male couples is within the realm of sexual agreements. Methods: The purpose of our analysis was to determine whether respondents who report having an open agreement or an agreement breakage also report a higher incidence of recent (within the previous 12 months) intimate-partner violence (IPV) compared to respondents who report having a monogamous agreement or no agreement breakage after controlling for demographic variables. Results: Results showed that men who have an open agreement are less likely to report recent physical IPV. Conclusions: The results highlight the need to develop dyadic behavior interventions that address sexual agreements and stress management.     

教师教育影响的特征及其启示

教师的教育影响是附属于教师个体的特殊的教育影响。它具有高效性、灵活性、感染性、示范性等特征。教师应充分认识这些特征, 在教育实践中做到教书育人相结合、身教与言教相结合、理论与实践相结合。     

漫谈多媒体教学课件的设计

设计多媒体课件 ,要了解授课对象的基本情况 ,根据教学目标选定教学内容。在各学习界面的设计中 ,充分体现教学策略     

论经学对《汉书》义例的影响

经学对《汉书》的影响是深重的。经学对《汉书》义例的影响主要表现在两个方面：一是立名定目，依托经典；二是创立志表，弘扬经学。探讨经学对《汉书》的影响有助于解决一些史学问题。     

论美国宪法政治形成发展的基础

美国宪法政治形成和发展的原因 ,在于有英国立宪政治的深厚文化与思想做基础 ,在于社会各群体有在法治状态下生活的习惯和传统。济济的法律人才在国家政治制度的设计上起了主导作用 ;社会经济制度为美国的宪法政治确立与发展奠定了坚固的基础 ;国家不豢养和保存大规模的常备军 ,人民的代议机关能牢牢控制国家武装力量 ,尤其能控制国家武装力量的经济命脉。另外 ,北美独立运动不是一场专制王权与民主力量之间的冲突与斗争 ,而是一场殖民地力量壮大以后争取分离的运动     

Spatial variation in soil inorganic nitrogen across an arid urban ecosystem

We explored variations in inorganic soil nitrogen (N) concentrations across metropolitan Phoenix, Arizona, and the surrounding desert using a probability-based synoptic survey. Data were examined using spatial statistics on the entire region, as well as for the desert and urban sites separately. Concentrations of both NO₃-N and NH₄-N were markedly higher and more heterogeneous amongst urban compared to desert soils. Regional variation in soil NO₃-N concentration was best explained by latitude, land use history, population density, along with percent cover of impervious surfaces and lawn, whereas soil NH₄-N concentrations were related to only latitude and population density. Within the urban area, patterns in both soil NO₃-N and NH₄-N were best predicted by elevation, population density and type of irrigation in the surrounding neighborhood. Spatial autocorrelation of soil NO₃-N concentrations explained 49% of variation among desert sites but was absent between urban sites. We suggest that inorganic soil N concentrations are controlled by a number of ‘local’ or ‘neighborhood’ human-related drivers in the city, rather than factors related to an urban-rural gradient.     

近代天皇制:日本发动对外战争的罪魁

近代天皇制是日本对外侵略战争连绵不断之深层次、制度意义上的原因。因为近代天皇制是日本政治制度的核心 ,是军国主义的基础 ;天皇是战时国家的最高军事统帅 ,是国家最高领导人和最终决策者 ,天皇无论是在战前、战时、战后 ,都是日本国民教育的精神领袖。     

Significant Factors of Aviation Insurance and Risk Management Strategy: An Empirical Study of Taiwanese Airline Carriers

Aviation insurance premiums have become a heavy burden for the airline industry since September 11, 2001. Although the industry must constantly balance its operations between profitability and safety, the reality is that airlines are in the business of making money. Therefore, their ability to reduce cost and manage risk is a key factor for success. Unlike past research, which used subjective judgment methods, this study applied quantitative historical data (1999–2000) and gray relation analysis to identify the primary factors influencing ratemaking for aviation insurance premiums. An empirical study of six airlines in Taiwan was conducted to determine these factors and to analyze the management strategies used to deal with them. Results showed that the loss experience and performance of individual airlines were the key elements associated with aviation insurance premiums paid by each airline. By identifying and understanding the primary factors influencing ratemaking for aviation insurance, airlines will better understand their relative operational strengths and weaknesses, and further help top management identify areas for further improvement. Knowledge of these factors combined with effective risk management strategies, may result in lower premiums and operating costs for airline companies.