KS型议程的行波解讨论

本文利用齐次平衡法确定了KS型方程双曲正切函数解的参数所满足的方程组，并且展开相关讨论，如给出了解的几种特殊情况及双曲正切函数法的适定条件等，为非线性发展方程的行波解（孤立波解）的求出给出了具有参考价值的理论与实例。所采用的方法具有普遍性。     

杨嗣昌旅游理论述论

杨嗣昌的旅游理论是比较系统的 ,它主要包括以下四个方面 :旅游资源的配置理论、风景名胜的评价理论、旅游观赏的审美理论、民俗旅游的开发理论。他同王思任、袁宏道、袁中道等人一起 ,代表了晚明时期我国古代旅游理论发展的一个新的阶段。     

动态车辆路径问题排队模型分析

分析了一类动态车辆路径问题,其中顾客需求以泊松流形式出现,现场服务时间服从一般分布.提出解决该问题的两种策略:顺序服务策略和中点改进策略,利用排队论、几何概率论等领域的知识分别求出了这两种策略的系统时间,并通过仿真数据实验验证了这两种策略的有效性.     

The Culture of High-Risk Alcohol Use Among Club and Intramural Athletes

Abstract

Objective: The purpose of this study was to examine the drinking patterns of club and intramural college athletes and compare their alcohol consumption, perceived norms around the excessive use of alcohol, experience of negative consequences, and employment of protective strategies with those of campus varsity athletes. Participants: A total of 442 undergraduate students attending a private, suburban institution in the Northeast participated in the American College Health Association National College Health Assessment-II Web survey in spring 2011. Thirty-five students identified themselves as varsity athletes, 76 identified as club sport athletes, and 196 students identified themselves as intramural athletes. Methods: Survey responses were analyzed using Statistical Package for the Social Sciences. The Pearson's correlation coefficient and test for independence were applied to identify significant relationships between athlete status and identified variables related to alcohol use. Results: Results indicated that there were significant correlations between athlete status and all variables, to varying degrees. Conclusions: These findings have implications for campus health promotion professionals and athletics program coordinators seeking to address high-risk alcohol use among college athletes.     

天堂寨假日旅游市场调查分析

在实地考察与调查并拥有大量第一手资料的基础上,从旅游客源构成、旅游者行为特征及经济特征、旅游评价、旅游市场空间结构等方面,对天堂寨假日旅游市场进行了具体分析,并探讨了天堂寨旅游市场开发的对策与策略。     

黑龙江省农业旅游资源开发的现状、问题及对策

黑龙江省是农业大省,也应该成为农业旅游大省。农业旅游资源开发有广阔的发展前景,我省开展农业旅游业虽然已取得了一些成绩,但农业旅游的发展应该说才刚刚起步,农业旅游产品也仅仅为雏形,今后的发展还存在着许多困难、矛盾和问题。黑龙江省农业旅游开发可分为两个步骤、两个重点,应着重采取六方面措施。     

五台山佛教文化翻译规范化研究

目前,山西省五台山圣地的译介材料中存在各种误译、错译和译文不规范的问题,已经影响到该省旅游经济的发展。文章试图通过对佛教文化翻译规范化研究来改变这一局面,以促进山西省旅游经济的复苏。     

改进的行波管三维非线性理论

研究了行波管中直流空间电荷场导致的电位下沉效应,计算了谐波与电子注的相互作用,并利用三维“塑性”宏粒子模型计算了交变空间电荷场,同时考虑了有限聚焦磁场。基于上述改进的行波管三维非线性理论,开发了可动态实时显示行波管工作状态的可视化科学计算软件,并利用该软件分析了电位下沉效应、空间电荷力、谐波对行波管性能的影响,得到了与实验测试更吻合的计算结果。     

中国问题、文论旅行与原创焦虑

讨论中国问题时,应该充分意识到其中的复杂性,尤须摆脱那种形而上的理论化迷思,尊重男男女女汹涌如潮的切肤体验;应该妥善处理好中国文学体验与域外文学理论之间的关系难题,特别是,不能以特殊性否认乃至对抗一般性的价值;应该致力于理论启蒙,致力于融会贯通后的自然创新,放弃原汁原味式理论原创的幻想,进而消除因其不可得而引发的焦虑与怨恨。     

Changing Directions in HIV Prevention: The Move Toward a Psychosocial Model

ABSTRACT

Although some HIV prevention programs have been successful in helping gay and bisexual men change their sexual behaviors, rates of HIV infection continue to increase. In an attempt to address this problem, social workers need to move beyond traditional HIV prevention approaches to a psychosocial model of HIV prevention. Based on the work of previous researchers, this approach assumes that a combination of individual, psychological, and social factors contribute to risky sex in gay and bisexual men. Because social workers are trained to view problems from a psychosocial framework, they are already in a position to develop programs incorporating the psychosocial model. This article examines the psychosocial model of HIV prevention and the various psychosocial factors that may contribute to high-risk sexual behavior and concludes with examples of prevention research that have already incorporated the model.