Video Experimental Relacionado

Updated: Jan 1, 2026

Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.
07:32

Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.

Published on: June 4, 2021

5.6K

CO2 y la extinción masiva de finales del Triásico.

David Beerling

    Nature
    |January 25, 2002
    PubMed
    Resumen

    La extinción masiva de finales del Triásico puede haber sido impulsada por un aumento significativo en el dióxido de carbono atmosférico (pCO2). Un nuevo análisis de suelos fósiles y hojas de plantas sugiere que los niveles de pCO2 fluctuaron, vinculando este gas con el calentamiento global y la extinción.

    Más Videos Relacionados

    Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses11:19

    Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses

    Published on: October 21, 2016

    12.3K
    Expired CO2 Measurement in Intubated or Spontaneously Breathing Patients from the Emergency Department07:52

    Expired CO2 Measurement in Intubated or Spontaneously Breathing Patients from the Emergency Department

    Published on: January 29, 2011

    16.7K

    Videos de Conceptos Relacionados

    The Fossil Record02:56

    The Fossil Record

    The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils. Moreover, the fossil record only exhibits fossils that have been discovered. Nevertheless, sedimentary rock fossils of long-lived, abundant, hard-bodied organisms dominate the fossil record. These fossils offer valuable information, such as an organism's physical form, behavior, and age. Studying the fossil record helps...
    26.9K
    The Carbon Cycle01:14

    The Carbon Cycle

    Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
    43.0K
    Assessment of Diffusion and Perfusion01:17

    Assessment of Diffusion and Perfusion

    Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
    The Role of Diffusion in Respiration
    Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this...
    1.5K
    Carbon Dioxide Transport in the Blood01:19

    Carbon Dioxide Transport in the Blood

    Carbon dioxide (CO2) transport in the blood is critical to human physiology. On average, our body cells produce around 200 mL of CO2 per minute, precisely the quantity expelled by the lungs. This process involves the transportation of CO2 from the tissue cells to the lungs in three primary forms.
    Forms of CO2 Transport
    1. Dissolved in plasma: A small percentage (7-10%) of CO2 is transported and dissolved directly in the plasma.
    2. Carbaminohemoglobin: Just over 20% of CO2 is chemically bound to...
    4.2K
    Oxygen Transport in the Blood01:27

    Oxygen Transport in the Blood

    Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...
    5.5K
    Threats to Biodiversity01:50

    Threats to Biodiversity

    There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
    26.4K