Related Concept Videos
01:25Design Example: Designing a Residential Plumbing System
1.1K
The design of residential plumbing systems requires carefully evaluating water demand, flow rates, and pressure dynamics to ensure both efficiency and reliability. The nature of water flow within pipes is defined by its Reynolds number, which classifies flow as either laminar (smooth) or turbulent.
1.1K
01:27Ethnic Identity within a Larger Culture
228
Adolescents from ethnic minority backgrounds face a multifaceted journey in forming their identities, shaped by the intersections of cultural expectations and personal exploration. For these adolescents, identity formation involves not only typical developmental challenges but also navigating the perceptions and attitudes of the majority culture. As they grow, adolescents in ethnic minority groups often become increasingly aware of stereotypes, social biases, and discrimination, all of which...
228
01:49Law of Segregation
77.6K
When crossing pea plants, Mendel noticed that one of the parental traits would sometimes disappear in the first generation of offspring, called the F1 generation, and could reappear in the next generation (F2). He concluded that one of the traits must be dominant over the other, thereby causing masking of one trait in the F1 generation. When he crossed the F1 plants, he found that 75% of the offspring in the F2 generation had the dominant phenotype, while 25% had the recessive phenotype.
77.6K
01:16Segregation in Fresh Concrete
555
Segregation in fresh concrete is a phenomenon where the components of the concrete mix separate, leading to uneven distribution and compromised structural integrity. This separation typically occurs when concrete is subjected to excessive horizontal movement within forms, or when it is dropped from considerable heights or forced through narrow, winding paths. As a result, heavier coarse aggregate particles settle at the bottom, while lighter, finer materials such as cement and water rise to the...
555
01:27Air-entraining Agents
259
Air-entraining agents improve the durability and workability of concrete in climates with frequent freezing and thawing. These agents prevent cracks by introducing small air bubbles into the mix, creating spaces accommodating water expansion when temperatures drop. The air-entraining agents lower the surface tension of water, forming stable, small air bubbles. This method is more effective than having accidental large voids, as the intentional, smaller, and evenly distributed air voids improve...
259
01:28Effects of Air-entrainment in Concrete
369
Air entrainment in concrete significantly enhances the material's durability, especially in environments subjected to freeze-thaw cycles. Introducing small air bubbles into the concrete mix acts as internal voids that accommodate the expansion of water when it freezes, thereby alleviating internal stress and preventing structural cracks. This function is crucial in climates with significant freezing and thawing, as it protects the concrete from repeated stresses that could lead to premature...
369
You might also read
Related Articles
Articles linked to this work by shared authors, journal, and citation graph.
Sort by
Same author
Public Awareness and Perceptions of the 988 Suicide & Crisis Lifeline Among California Adults.
Community mental health journal·2026
Same author
In-unit particulate matter (PM2.5) in a public housing complex and the importance of tobacco and cannabis as indoor pollutants.
Indoor environments·2026
Same author
Judge Me Not: Exploring Black Mothers' Perceptions of Maternal Health Care Services and Structural Racism in South Carolina.
Journal of racial and ethnic health disparities·2026
Residential Segregation and Racial/Ethnic Disparities in Ambient Air Pollution.
Bongki Woo1, Nicole Kravitz-Wirtz2, Victoria Sass3
1College of Social Work, University of South Carolina, 1512 Pendleton Street, Columbia, SC, 29208.
Race and Social Problems
|August 24, 2019
Summary
Racial and ethnic minorities face higher air pollution exposure, especially in segregated areas. Addressing residential segregation is key to reducing environmental inequities and improving public health outcomes.
Area of Science:
- Environmental Science
- Public Health
- Sociology
Background:
- Persistent racial and ethnic inequalities exist in air pollution exposure.
- Understanding the factors maintaining these environmental disparities is crucial.
Purpose of the Study:
- To examine the association between racial residential segregation and racial/ethnic inequalities in exposure to three air pollutants.
- To assess the independent and joint contributions of race/ethnicity and segregation to pollution exposure.
Main Methods:
- Utilized data from the Panel Study of Income Dynamics (1990-2011), U.S. Census (1990-2010), and Environmental Protection Agency.
- Analyzed individual-level exposure to air pollution nationwide, considering metropolitan-level residential segregation.
Main Results:
- Racial and ethnic minorities experienced significantly higher air pollution exposure than Whites.
- The disparity in pollution exposure between minorities and Whites was greatest in highly residentially segregated metropolitan areas.
Conclusions:
- Environmental inequities in air pollution exposure are linked to racial residential segregation.
- Public health and policy initiatives are needed to address these disparities and improve population health.
- Mitigating uneven environmental burdens can reduce racial/ethnic health inequalities.