“瘴气”的退却:我国疟疾防治对母婴健康影响的实证研究

来源 :经济学(季刊) | 被引量 : 0次 | 上传用户:chinadongfang2
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
本文利用国家统计局开展的中国第二期深入的生育力调查微观数据,首次系统估计了20世纪六七十年代疟疾防治对我国广东省孕妇和婴儿健康的影响。双重差分估计结果显示,相比疟疾低流行地区,疟疾防治使得高流行地区妇女妊娠失败概率和婴儿死亡率出现了更显著下降;并且疟疾防治也更显著地降低了疟疾高流行季节发生妊娠失败的概率。稳健性检验排除了计划生育、\"文化大革命\"对估计的可能干扰。因此,疟疾防治通过改善母婴健康为我国经济发展创造了良好条件。
其他文献
康德在B版演绎§17中成功地实现了从统觉的综合统一性到客观统一性的论证过渡,该论证在现有的研究文献中并未得到合理的说明。在康德看来,统觉的综合统一性是主体通过先天综合而建立的统一性,这意味着表象的联结必须以普遍有效的方式进行。康德在§17中引入了客体概念,并认为只有按照该概念表象的联结才获得普遍有效性。所以,康德论证的关键在于阐明统觉的综合统一性只有通过客体概念才得以实现,并因而也才成为一种客观统一性。该论证步骤与B版演绎第一部分的整体思路具有同构性。
Few-to hundred-atom luminescent metal nanoclusters(NCs)protected by an organic monolayer have recently emerged as a novel class of chromophores,with facile preparation,ultrafine size,low toxicity,high renal clearance and excellent photostability[1].Lumine
Protein misfolding and aggregation have been associated with a number of human diseases. As a multistep process(Fig. 1 a), protein unfolding yields misfolded intermediates as either monomers or oligomers, which evolve into insoluble aggregates as amorphou
Since the coinage of the concept of aggregation-induced emission (AIE)in 2001 [1], AIE molecules have been widely utilized as biological probes, chemical sensors, and optoelectronic and stimuli-response materials[2]. Tetraarylethylenes (TAEs) are archetyp
百年征程波澜壮阔,百年初心历久弥坚。赓续精神血脉,汲取奋进力量。为隆重庆祝中国共产党成立100周年,突出建党百年重大主题,宣传房地产业在党建工作方面的先进做法,本刊面向业内征集素材,传播优秀经验案例,探讨党建工作对行业高质量发展切实起到的引领作用。中国共产党不懈奋进一百年,有非常宝贵的经验值得总结和传承。房地产企业应把党的宝贵经验传承好、发扬好,铭记奋斗历程,担当历史使命,努力在新时代新征程上展现新担当新作为。我们看到,各地企业纷纷组织团队通过潜心自学、专题学习、专题培训、开展实践活动、召开专题组织生活会
Base editor-mediated C-to-T base conversion obviates the requirements of double-strand breaks,thereby showing promise as a tool for disease modeling and gene therapy(Gaudelli et al.,2017;Rees and Liu 2018).The most actively used base editor comprises a Ca
数字经济时代,商业银行开展金融科技到底能否改善自身经营绩效?本文在从理论层面分析传统普惠金融模式对商业银行的负向激励与金融科技改进银行绩效机制的基础上,以某大型商业银行县域层面的数据进行检验。结果发现:与网点扩张型传统普惠金融模式相比,金融科技除了能够扩大金融服务的包容性,还能够提高商业银行的盈利性和成长性,实现普惠金融的商业可持续性。由此,本文提出商业银行推动金融科技发展的建议。
The prevalence of myopia, or nearsightedness, has skyrocketed in the past few decades, creating a public health crisis that is commonly attributed to lifestyle changes. Here we report an overall increase in the frequencies of myopia-associated mutant alle
Light is an essential ingredient of human civilization, and has been tightly associated with society and everyone’s daily life. Light can be emitted from various kinds of luminophores, and the concept of aggregation-induced emission(AIE)was a breakthrough
A molecule, according to Merriam-Webster, is ‘the smallest particle of a substance that retains all the properties of the substance’. This definition laid the foundation for molecular science. Against this reductionist epistemology, holism argues that the