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The application of the energy equation to centrifugal pumps is a fundamental principle in fluid dynamics and engineering. In this scenario, the energy equation is used to calculate the flow rate of a centrifugal pump responsible for transferring water between two reservoirs at different elevations. The pump applies an energy input of 7500 joules per second, and the vertical difference between the lower and upper reservoirs is 10 meters. Additionally, the head loss due to friction and other...
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相关实验视频

Updated: Jun 21, 2025

A Common Marmoset Model of Mother-Infant Intervention for Breastfeeding Disorders in the Presence of Paternal Inhibition and Maternal Neglect
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量化使用与母乳养时间之间的关联.

Deanna Nardella1, Maureen Canavan2, Mona Sharifi1

  • 1National Clinician Scholars Program, Department of Internal Medicine, Yale School of Medicine, New Haven, CT; Department of Pediatrics, Yale School of Medicine, New Haven, CT.

The Journal of pediatrics
|July 14, 2024
PubMed
概括

吸乳器的使用与更长的母乳养时间有关,特别是在非西班牙裔黑人和美洲原住民母亲身上. 这一发现凸显了接入对于解决母乳养不平等问题的重要性.

关键词:
乳房 乳房 乳房母乳养 哺乳期 母乳养卫生公平性健康公平性哺乳期 哺乳期 哺乳期孕产妇和儿童的健康.营养 营养 营养 营养

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科学领域:

  • 公共卫生 公共卫生
  • 孕产妇和儿童的健康
  • 哺乳期科学 哺乳期科学

背景情况:

  • 哺乳对于婴儿和母亲的健康至关重要.
  • 在母乳养时间方面存在社会经济和种族差异.
  • 吸乳器的使用是影响继续母乳养的潜在因素.

研究的目的:

  • 调查吸乳机使用与母乳养时间之间的关联.
  • 检查这种关联是否在种族和种族群体之间存在差异.

主要方法:

  • 来自怀孕风险评估监测系统 (2016-2021) 的加权数据的横截面分析.
  • 包括开始母乳养的母亲,并提供有关使用和持续时间的完整数据.
  • 考克斯比例危险回归用于分析停止母乳养和中位数持续时间.

主要成果:

  • 吸乳器的使用与停止母乳养的风险降低了37%,并增加了21周的母乳养.
  • 较低社会经济地位,年龄较小和非西班牙裔白人种族/种族的母亲报告使用的次数较少.
  • 抽使用和减少停止母乳养之间的关联在非西班牙裔黑人和美洲原住民母亲中最为强烈.

结论:

  • 吸乳器的使用与更长的母乳养时间有显著的关联.
  • 使用对母乳养时间的积极影响在面临母乳养不平等的种族/民族群体中最为明显.
  • 需要进一步研究以了解影响使用和母乳养结果的因果机制和上下文因素.