明末清初江南著名女诗人方维仪诗歌论

江南桐城＂方氏三节＂于明末清初即享誉诗坛,其中方维仪诗画成就最高,然其婚姻短暂而不幸,归家守志清芬阁。她著作较多,流传极少。诗存百余首,内容大体分为两类：一是感伤诗,抒发了一个守节殉道者的内心孤苦悲戚之情,揭示了封建社会节妇们真实的内心世界和生存困境;二是忧时伤乱之作,反映明季社会现实,具有一定的认识作用。其诗感情细腻,真挚沉郁。     

基于支持向量机的管理信息系统故障识别模型研究

管理信息系统故障影响着企业信息工程的开展。及时识别故障,能够为企业争取更多时间处理故障。因此,管理信息系统故障识别有着重要的研究意义和实践意义。基于支持向量机,构建管理信息系统故障识别模型,通过把样本应用于该模型,结果表明该模型具有较好的准确性,能有效识别管理信息系统故障。     

机器学习视角下中国去产能产业的识别

随着中国环境压力的增加,政府提出了供给侧改革,去产能是改革的主要内容,但是由于产业特征的实时演变,需要对政策进行完善。文章运用模糊C均值算法和支持向量机算法分析现阶段需要进行去产能的产业,结果发现在现行去产能政策中大部分行业是需要去产能的,但煤炭开采和洗选业以及铁路、船舶、航空航天和其他运输设备制造业已不适合继续去产能,同时将化学原料和化学制品制造业加入去产能行列中。     

我国农业传统文化与后现代农业发展的相关思考

现代农业的发展是以功利性为特征的,受经济目标的逐利影响,正逐渐步入生态困境。后现代农业发展阶段将出现农业生态观的原始回归,这将为我国农业传统文化功能的发挥创造机遇。我国后现代农业发展阶段应重视传统农业文化的诉求,挖掘本土农业文化资源,加强对外引文化的审视,提高农业自我创新能力。     

大学生环境态度对环境政策支持度预测的跨地区研究

Kellert的态度类型量表与Dunlap等人共同编制的新生态范式(NEP)量表分别从两个角度评估环境态度。通过两个量表共同预测大学生对环境态度的支持情况,结果显示环境态度的地区和性别差异显著。西部地区学生环境态度最强烈,而中部、西部地区学生的道德感强于东部学生。不同的态度构成要素能预测对不同环境政策的支持,其中NEP量表的"人与自然"和Kellert量表的"功利主义"对环境政策支持的预测性最强。     

Unraveling quantity discounts

We consider the situation in which a buying organization deals with a discrete quantity discount schedule offered by a selling organization. Furthermore, the buying organization can negotiate with the selling organization about the lot size and purchase price, but does not know the underlying function that was used by the selling organization to determine the quantity discount schedule. In this paper, we provide an analytical and empirical basis for one general quantity discount function (QDF) that can be used to describe the underlying function of almost all different quantity discount types. We first develop such a QDF analytically. Among other things, this QDF enables buying organizations to calculate detailed prices for a large number of quantities. We subsequently show that the QDF fits very well with 66 discount schedules found in practice. We discuss that the QDF and related indicators can be a useful tool in supplier selection and negotiation processes. It can also be used for competitive analyses, multiple sourcing decisions, and allocating savings for purchasing groups. Additionally, the QDF can be included in research models incorporating quantity discounts. We conclude the paper with an outlook on further QDF research regarding the characterization of commodity markets from a demand elasticity point of view.     

Predictive factors of acculturation attitudes and social support among Asian immigrants in the USA

This study examines acculturation attitude and its relation to social support among Asian immigrants. The data were collected from 242 Korean, Indian and Filipino immigrants in the USA using the Acculturation Attitude Scale and the Social Support Index. Findings showed that Koreans had a less positive attitude toward acculturation than did Indian and Filipino participants. Acculturation attitude was positively correlated with educational level and English fluency. This study also found a negative correlation between acculturation attitude and social support. Social support from friends and English fluency were identified as significant predictor variables in determining the level of acculturation attitude. These findings not only contribute to social work education and practice, but also increase cultural sensitivity and awareness in working with these populations.     

游牧经济的机动性分析--以古代蒙古族的游牧经济为例

1800年以前,世界的军事优势一直控制在生活在亚欧大陆腹地的游牧民族手中.在此前两千五百多年间,游牧民族曾经在亚欧大陆纵横驰骋,东亚、南亚、西亚和欧洲的许多农业帝国纷纷被来自草原的游牧民族所吞并,其原因何在呢?本文认为,这正是游牧民族独特的生产方式赋予游牧民族的灵活的机动性所致.     

关于杜尔伯特蒙古族自治县农转牧情况及存在问题的调研报告

本文介绍了黑龙江省杜尔伯特蒙古族自治县农转牧发展情况、存在的问题及对策。     

“木精为青牛”考释

植物精怪的动物化是一种世界性民俗现象,在中国古代则有“木精为青牛”的说法。究其原因,这一观念的出现大约有三方面的影响因素:一是古代神话中植物神祗动物形貌的遗存;二是秦汉时期有“出土牛迎春”的礼俗,土牛、青牛与春天、树木关联在一起;三是中国古代有源远流长的青牛信仰,在魏晋南北朝时期尤为突出,这是“木精为青牛”说的民俗背景。