Video Experimental Relacionado

Updated: Jul 11, 2026

Measuring Carbon Content in Airway Macrophages Exposed to Carbon-Containing Particulate Matters
05:18

Measuring Carbon Content in Airway Macrophages Exposed to Carbon-Containing Particulate Matters

Published on: July 12, 2024

Contaminación del aire urbano: el estado de la ciencia

J H Seinfeld

    Science (New York, N.Y.)
    |February 10, 1989
    PubMed
    Resumen

    La contaminación del aire urbano implica mezclas complejas de gases y partículas. Si bien la investigación ha avanzado en la comprensión, persisten incertidumbres significativas con respecto a su química y física.

    Más Videos Relacionados

    Visualizing Field Data Collection Procedures of Exposure and Biomarker Assessments for the Household Air Pollution Intervention Network Trial in India09:33

    Visualizing Field Data Collection Procedures of Exposure and Biomarker Assessments for the Household Air Pollution Intervention Network Trial in India

    Published on: December 23, 2022

    Analysis of the Ambient Particulate Matter-induced Chromosomal Aberrations Using an In Vitro System08:48

    Analysis of the Ambient Particulate Matter-induced Chromosomal Aberrations Using an In Vitro System

    Published on: December 21, 2016

    Videos de Conceptos Relacionados

    Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

    Chronic Obstructive Pulmonary Disease-II: Pathophysiology

    Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
    Chronic Inflammation
    Linear Approximations01:23

    Linear Approximations

    For a differentiable function of two variables, linear approximation estimates values near a known point by replacing the curved surface with its tangent plane. Consider the function\begin{equation*}f(x,y)=x^2+3y^2\end{equation*}near the point (2, 1). The exact value at this point is f(2, 1) = 22 + 3(1)2 = 4 + 3 = 7.The linear approximation of f(x, y)) near (a, b) is\begin{equation*}L(x,y)=f(a,b)+f_x(a,b)(x-a)+f_y(a,b)(y-b)\end{equation*}First, compute the partial derivatives: fx(x, y) = 2x and...
    Types of Toxins01:36

    Types of Toxins

    Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
    Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
    Environmental pollutants like...
    Factors Affecting Pulmonary Ventilation01:19

    Factors Affecting Pulmonary Ventilation

    Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
    Alveolar Surface Tension
    The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
    Chronic Obstructive Pulmonary Disease I: Introduction01:23

    Chronic Obstructive Pulmonary Disease I: Introduction

    Chronic obstructive pulmonary disease is a common, preventable, and treatable respiratory disorder characterized by persistent symptoms and progressive airflow limitation. This limitation results from a combination of small-airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), both driven by chronic inflammation from exposure to harmful particles or gases.The disease includes two main pathological entities: emphysema, marked by destruction of alveolar walls and...