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职业教育高质量发展是确定职业教育类型地位、构建技能型社会的必经之路。基于政策扩散理论,采用文本分析法,从时间、空间、机制三个维度深度描绘省级政府推动职业教育高质量发展的政策扩散机理。研究发现,时间维度上,扩散曲线呈S型分布,扩散过程显现政策扩散初显期（2018—2019年）、政策扩散发展期（2020—2021年）、政策扩散深化期（2022年至今）;空间维度上,职业教育高质量发展政策遵循空间扩散逻辑,呈现自上而下的纵向层级扩散体系、邻近效应的横向区域扩散模式、协同联动的平行部门扩散结构三种扩散路径;机制维度上,学习、模仿、竞争、强制四种机制共同驱动职业教育高质量发展,形成内生驱动和外力推动的政策扩散生态格局。 相似文献
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发散式思维是创造性思维的基础,具有思维的流畅性、灵活性、独创性、精密性等特性。要培养学生的发散式思维,首先要提高教师自身的素质,做到远见卓识,脚踏实地,标新立异、打破常规,从思维的功能扩散、结构扩散、形态扩散、方法扩散、关系扩散等方面去培养学生的发散思维,不断提高学生的创新能力。 相似文献
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为探索知识图谱软件的扩散路径及扩散影响力,预测其发展趋势,基于创新扩散理论,运用文献计量法和主路径分析法等数据+图谱的方法,根据扩散曲线、扩散路径和扩散网络探索其扩散规律.实证分析得出,知识图谱软件的扩散过程基本符合S型曲线规律.随着软件的更新与迭代,其扩散路径分化出两条关键主路径,主路径上有4个核心人物(Garfie... 相似文献
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饶睿 《合肥教育学院学报》2011,(2):22-25,38
借助技术创新扩散资料,对各肥市高新区实地调查,通过分析技求的空间扩散过程,认为技术势能、空间距离、扩散通道和扩散环境是影响技术创新扩散的主要因素,以合芜蚌自主创新综合配套改革试验区为例,分析了高技术企业的区位要求,为下一步优化试验区企业布局的方案提供有力的理论支撑。 相似文献
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陈建伟 《苏州教育学院学报》2009,26(3):55-57
山东临沂方言语音上最明显的一个特点是区分尖音和团音。随着普通话的普及,临沂方言区分尖团的局面逐渐被打破。调查显示：尖团音的分合,既与说话人的年龄、性别、文化程度等社会要素有着密切的关系,又与词频、语境等语体因素息息相关。尖音向团音扩散的特征是：从年轻人逐渐向老年人扩散,从丈化程度高的人逐渐向文化程度低的人扩散,从脑力劳动者向体力劳动者扩散从书面语向口语扩散,从正式语体向非正式语体扩散。 相似文献
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一、影响教育信息化创新在学校中扩散的因素
研究表明,被采用的创新其扩散过程符合以时间为横坐标的S型曲线：当创新开始被采用时增长的速度很慢,当被采用的创新在数量上达到一个临界值时,采用率迅速上升,当达到一定数量后,其增长的趋势又开始趋向平缓。虽然大多数被采用的创新的扩散都符合S型曲线,但不同创新之间扩散曲线的陡峭程度不同,也就是说创新扩散的速度不同。同时,对于有的创新,虽然具有明显的益处,但并不一定被采纳,扩散也就不会呈现S型曲线。为什么有的创新能够被采纳,有的不能？为什么有的创新能够很快扩散开来,有的扩散速度很慢？创新扩散的研究认为影响创新扩散的因素除了包括创新本身的特点外, 相似文献
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介绍用导数-比光谱法同时测定酱油及食醋中的山梨酸和苯甲酸.样品用乙酸乙酯作萃取剂；用Na 相似文献
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文中针对实验室含银废液中银的再生利用提出了新方法。该方法由氯化钠沉淀-氨水溶解-电解-制备硝酸银等几个步骤组成,不仅能够使废液中的银得到有效回收(回收率达96.5%以上,回收银纯度达99.90%),而且可以循环使用于分析测定实验。具有操作方便、回收率高和成本低的特点,适宜于化学实验室等场合处理废液和循环利用含银试剂。 相似文献
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研究了连苯三酚产生超氧自由基体系的条件,并在此体系下测定了银杏叶提取物的抗超氧自由基的作用。实验表明,提取物能抗超氧自由基,抑制率最高达23.1%。本方法操作简便,测定快速,是一种简便的筛选抗超氧自由基清除剂和有效抗氧化药物的方法。 相似文献
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The TV-viewing behavior of 99 families with young children was videotaped by automated time-lapse recording equipment placed in homes for 10-day periods. The 99 families comprised 460 individuals from infants to 62 years of age. Time-sample analyses of 4,672 hours of recordings indicated that the TV-viewing room contained no viewers 14.7% of the time that the TV was on. There were no age trends in time spent with television. Percent visual attention to television increased greatly across the preschool years, leveled off at about 70% during the school-age years, and declined in adulthood. Men looked at the TV more than women. There were no significant correlations between time spent with TV and percent of visual attention to TV. The increase in visual attention to television during the preschool years is consistent with the theory that TV program comprehensibility is a major determination of attention in young children. 相似文献
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Work sampling, an industrial technique, enables a supervisor to estimate the percent of time a worker spends on a particular activity. In the office situation studied here, it was found that the same amount of work presently produced could be accomplished by a staff reduced by 23% from the present level. This determination was made in less than five hours by the observer, yet a savings of over $9,000 could be realized from these efforts in a single year. Periodic campus-wide use of this technique could result in even more substantial savings for an institution.The research reported on was the subject of a pilot study report in which John Fornof was most helpfully an original participant. The helpful critique of Dr. Robert C. Judd, Professor of Operations Analysis at the University of Toledo, is gratefully acknowledged. 相似文献
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李璟琦 《陕西教育学院学报》2007,23(3):64-66
以小偃22幼胚为试验材料,通过田间取样室内培养的方法研究了不同取材时期对小偃22幼胚体细胞胚性无性系诱导的影响。结果表明:小偃22未成熟种子占颖壳长度比例在60%~80%之间时,幼胚处于"半透明向淡黄色过渡"状态,愈伤组织诱导率达到95.6%以上,胚性愈伤组织诱导率达到39.4%~46.1%,是最佳培养时期。 相似文献
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Returns to Higher Education in 21 OECD Countries: The impact of economic and university policies. – We present new estimates of the private internal rate of return (IRR) to Higher Education (HE) in 21 OECD countries. In 2001 the IRR varied considerably across countries, ranging from 4 percent for women in Italy (5 percent for men in Spain) to 14 percent in Ireland. IRR are relatively homogeneous across gender. At 6¼ percent the IRR for Germany falls short of the OECD average (8½ percent). The largest contributor to benefits from HE is the educational wage premium; the largest contributor to costs is foregone income while studying. Cross-country differences in IRR are driven by differences in the wage premium (27 percent in Spain versus 91 percent in Hungary and the United States), in the duration of HE, the marginal tax rate, and direct costs of HE. We then simulate the effect of policy reforms on the IRR. An increase in tuition fees equivalent to 15 percent of average national income would reduce the IRR by 0.8 to 1.6 percentage points (Germany: 1.1 percent). Shortening the duration of studies by 10 percent and reducing the progressiveness of the income tax schedule would compensate for the fall in the IRR. 相似文献
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《Chinese Education & Society》2013,46(2):107-114
Recently we surveyed 166 outstanding female professionals in our city to probe into their concept and mentality on becoming achievers. The composition of those surveyed breaks down as follows: Scientific and technological personnel account for 58 percent, teachers of institutions of higher learning 24 percent, medical personnel 12 percent, and professionals in other fields 6 percent. Those who have already acquired a high-ranking job title account for 42 percent of the total, and those of a middle-rank job title 46 percent, and their average age is fifty-one. The overwhelming majority of them have attained in their respective fields a certain level of achievement that is on a par with domestic or international advanced levels and have been appraised by an accrediting agency at or above the provincial or ministerial level. 相似文献
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Among children investigated for maltreatment, those with parents experiencing mental illness or substance abuse are more likely to be placed out-of-home; however, little is known about why these children are at greater risk. Using a sample of 2488 Structured Decision Making® assessments administered in San Francisco county from 2011 to 2015, we identified a profile of safety threats that accounts for why workers are more likely to determine children of parents with mental illness and/or substance abuse unsafe in the home. Eight percent of assessments in our sample involved parents with current mental illness only and 10% had comorbid substance abuse. The odds of an unsafe determination more than doubled among parents with mental illness (OR = 2.52, p < 0.001) and were nearly tenfold higher among parents with comorbid substance abuse (OR = 9.62, p < 0.001). Three safety threats accounted for all of the effect of parental mental illness on safety determination: caretaking impairment due to emotional stability/developmental status/cognitive deficiency (57%), failure to meet a child’s immediate needs (30%), and threats of harm (14%). Three safety threats accounted for 55% of the effect of comorbid mental illness and substance abuse on safety determination: failure to meet a child’s immediate needs (21%), presence of a drug-exposed infant (21%), and caretaking impairment due to emotional stability/developmental status/cognitive deficiency (14%). Results suggest that sustained linkage to effective mental health services and material resources at the outset of a child welfare case may help to promote faster and more likely reunification, and prevent future maltreatment. 相似文献
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张晓纪 《安庆师范学院学报(社会科学版)》2012,31(1):110-114
清代安徽约20%的县集中了59%的进士人才。进士人才特别发达县增至2县,桐城成为进士人才第一发达县,皖中的桐城和皖南的歙县两县进士占总数的22.8%;其次发达县也增至4县,约占21.1%;一般发达县则为5县,占15.0%。清代皖省进士人才发展迅速,11个县拥有了全省59%的进士,人才集中趋势明显,人才发达地区人才增长加快,欠发达地区增长缓慢,二者间距离拉大,地域分布的不平衡性加剧。 相似文献