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Decreasing Function01:27

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A decreasing function describes a relationship where the output consistently declines as the input increases. This means that for any two input values, if one is greater than the other, the corresponding output is smaller. Mathematically, a function f is decreasing on an interval I if for every x1 < x2​ in I, f (x1) > f (x2). This type of behavior is visually identified on a graph that slopes downward from left to right.The nature of a function can be analyzed by calculating...
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Bradycardia is a medical condition in which the heart rate is slower than normal. It occurs when the heart's natural pacemaker, the sinus node, generates slower electrical impulses than the standard rhythm. In adults, bradycardia is diagnosed when the pulse rate falls below 60 beats per minute, indicating a deviation from the normal heart rate range.
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In the complex environment of the gastric lumen, excessive acid secretion can lead to the formation or worsening of ulcers within the delicate mucosal layer. Antacids, such as sodium bicarbonate and calcium carbonate, provide relief by neutralizing this acid, transforming it into harmless salt and water. This neutralization process raises the gastric pH from a highly acidic level of 1 to a more basic 3-4, reducing the acidity within the stomach.
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Since the early 2000s, computer-mediated communication (CMC) has grown rapidly, playing a crucial role in self-development. A key distinction between CMC and real-life interactions is the lack of a physically present partner. This absence makes non-verbal cues such as facial expressions, body language, and paralinguistic signals unavailable in CMC platforms like email, instant messaging, or social media. The lack of these cues can create ambiguity and complicate how feedback is interpreted.The...
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有针对性的数字选民压制努力可能会降低选民投票率.

Young Mie Kim1, Ross Dahlke2, Hyebin Song3

  • 1The School of Journalism and Mass Communication and the Department of Political Science (Faculty Affiliate), University of Wisconsin, Madison, WI 53706.

Proceedings of the National Academy of Sciences of the United States of America
|January 26, 2026
PubMed
概括
此摘要是机器生成的。

外国干涉美国选举涉及数字选民压制广告. 这项研究发现,这些广告不成比例地针对非白人,导致投票率下降,特别是在弱势群体中.

关键词:
广告广告广告广告广告广告广告广告广告外国干涉选举 外国干涉选举微型目标化 (microtargeting) 是一种微型目标化.社交媒体 社交媒体压制选民的行为.

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科学领域:

  • 政治科学 政治科学是指政治学.
  • 沟通研究 沟通研究
  • 社会学 社会学 社会学

背景情况:

  • 外国干预美国选举日益令人担忧.
  • 已经部署了未披露的数字选民抑制广告.
  • 了解这些广告的曝光和影响至关重要.

研究的目的:

  • 识别谁受到数字选民抑制广告的影响.
  • 为了确定曝光是否以及如何影响选民投票率.
  • 分析选民压制运动的准模式.

主要方法:

  • 使用用户级实时广告跟踪工具进行曝光测量.
  • 合并广告曝光数据与个人调查答复.
  • 匹配个人广告曝光与经过验证的选民投票率记录.

主要成果:

  • 压制选民的广告表现出明显的地理种族准模式.
  • 战场州的少数县的非白人收到了更多的广告.
  • 对选民压制广告的曝光与选民投票率下降有关.

结论:

  • 压制选民的广告不成比例地针对少数群体.
  • 这些广告对选民投票率有可衡量的,尽管很小的影响.
  • 有针对性的镇压可能会通过减少关键人口统计数据的投票率来影响选举结果.