The Experts below are selected from a list of 41361 Experts worldwide ranked by ideXlab platform

Kaitlin M. Gallagher - One of the best experts on this subject based on the ideXlab platform.

  • the influence of a semi reclined seated posture on head and neck kinematics and muscle activity while reading a tablet Computer
    Applied Ergonomics, 2017
    Co-Authors: Ethan C. Douglas, Kaitlin M. Gallagher
    Abstract:

    Increased tablet Computer usage calls for a proper understanding of potential injury risks from these devices. The purpose of this study was to assess the influence of tablet Computer reading postures on head and neck flexion and muscle activity. Nineteen participants completed read a tablet Computer in four different postures (standard Computer Monitor, tablet on a desk, tablet in the lap, semi-reclined with tablet in the lap). Reading the tablet in a semi-reclined trunk posture with the tablet in one's lap increased (p < 0.001) neck flexion angle (71.6%ROM) relative to reading from the standard Computer Monitor (6.39%ROM). Head flexion in the semi-reclined posture (19.7%ROM) and muscle activity (8.88%MVC) were similar to when reading from a standard Computer Monitor. Despite potentially reducing the gravitational moment produced by the head, the semi-reclined position could still compromise the force capabilities of the neck extensor musculature and result in increased strain on the passive tissues of the spine. Future work should assess how the semi-reclined position influences cervical intervertebral angles and passive tissue properties of the cervical spine. Overall, more research needs to be conducted on thoracic spine kinematics while reading a tablet Computer.

  • The influence of a semi-reclined seated posture on head and neck kinematics and muscle activity while reading a tablet Computer
    Applied Ergonomics, 2017
    Co-Authors: Ethan C. Douglas, Kaitlin M. Gallagher
    Abstract:

    Abstract Increased tablet Computer usage calls for a proper understanding of potential injury risks from these devices. The purpose of this study was to assess the influence of tablet Computer reading postures on head and neck flexion and muscle activity. Nineteen participants completed read a tablet Computer in four different postures (standard Computer Monitor, tablet on a desk, tablet in the lap, semi-reclined with tablet in the lap). Reading the tablet in a semi-reclined trunk posture with the tablet in one's lap increased ( p

Ethan C. Douglas - One of the best experts on this subject based on the ideXlab platform.

  • the influence of a semi reclined seated posture on head and neck kinematics and muscle activity while reading a tablet Computer
    Applied Ergonomics, 2017
    Co-Authors: Ethan C. Douglas, Kaitlin M. Gallagher
    Abstract:

    Increased tablet Computer usage calls for a proper understanding of potential injury risks from these devices. The purpose of this study was to assess the influence of tablet Computer reading postures on head and neck flexion and muscle activity. Nineteen participants completed read a tablet Computer in four different postures (standard Computer Monitor, tablet on a desk, tablet in the lap, semi-reclined with tablet in the lap). Reading the tablet in a semi-reclined trunk posture with the tablet in one's lap increased (p < 0.001) neck flexion angle (71.6%ROM) relative to reading from the standard Computer Monitor (6.39%ROM). Head flexion in the semi-reclined posture (19.7%ROM) and muscle activity (8.88%MVC) were similar to when reading from a standard Computer Monitor. Despite potentially reducing the gravitational moment produced by the head, the semi-reclined position could still compromise the force capabilities of the neck extensor musculature and result in increased strain on the passive tissues of the spine. Future work should assess how the semi-reclined position influences cervical intervertebral angles and passive tissue properties of the cervical spine. Overall, more research needs to be conducted on thoracic spine kinematics while reading a tablet Computer.

  • The influence of a semi-reclined seated posture on head and neck kinematics and muscle activity while reading a tablet Computer
    Applied Ergonomics, 2017
    Co-Authors: Ethan C. Douglas, Kaitlin M. Gallagher
    Abstract:

    Abstract Increased tablet Computer usage calls for a proper understanding of potential injury risks from these devices. The purpose of this study was to assess the influence of tablet Computer reading postures on head and neck flexion and muscle activity. Nineteen participants completed read a tablet Computer in four different postures (standard Computer Monitor, tablet on a desk, tablet in the lap, semi-reclined with tablet in the lap). Reading the tablet in a semi-reclined trunk posture with the tablet in one's lap increased ( p

Seungjin Lee - One of the best experts on this subject based on the ideXlab platform.

  • a life cycle assessment of end of life Computer Monitor management in the seattle metropolitan region
    Resources Conservation and Recycling, 2011
    Co-Authors: Michael S Noon, Seungjin Lee, Joyce Cooper
    Abstract:

    Abstract A life cycle assessment was performed on the management of waste Computer Monitors from King, Pierce, Snohomish, and Kitsap counties in Washington State considering four options for the final destination of the Monitors; reuse, recycling, sanitary landfilling, or hazardous waste landfilling. The system was interpreted in two ways; comparing the disposal of a single cathode ray tube (CRT) and liquid crystal display (LCD) Monitor and the expected regional change in Monitor disposals between 2008 and 2010. The results were separated into two scenarios, one in which credit was given for the avoidance of primary material production in response to the generation of recyclables and one where credit was not given. The effect of avoiding primary material production was large enough to change the impact assessment results from a system that consumed energy, contributed to global warming, and generated air emissions to one that produced energy, reduced global warming, and was a sink of air emissions. LCD Monitor disposal had lower impacts than CRT Monitor disposal in all impact categories except for the management of mercury. This translates into a reduction of the impact or an increase in the benefit for each impact category, except the management of mercury, for the system from 2008 to 2010 due to changing composition of the Monitor disposal stream from CRT to LCD technology.

  • Characterization of Monitor recycling in Seattle, Washington
    Regional Environmental Change, 2010
    Co-Authors: Seungjin Lee, Joyce Cooper, Gina Hicks
    Abstract:

    With the rapid growth of electronic waste (e-waste), policies that aim to effectively manage this waste stream have been introduced globally in recent years. Seattle, Washington, has been on the forefront of introducing policies to divert e-waste from the landfills and maximize recycling. With the introduction of the Take-it-Back-Network, a solid recycling infrastructure has existed in the Greater Seattle region since 2003. In 2009, the E-Cycle Washington program took into effect and now allows recyclers to offer free recycling of certain e-waste to households and small entities. Although policies to divert e-waste from the landfill to reuse and recycling is effective, there is also a need to analyze the current regional recycling infrastructure’s capacity to handle changing equipment and material quantities. This study aims to characterize the Seattle regional e-waste management capacity, with a focus on retired Monitors as an example of a changing e-waste technology. We investigated waste Computer Monitor recycling in the Greater Seattle region, which includes the counties of King, Pierce, Snohomish, and Kitsap. Interviews were conducted on 20 collectors, 1 handler, and 2 processors to collect information on their business models, Computer Monitor management processes, and collection/processing quantities. Using this information, we summarize the material flows of end-of-life (EOL) cathode ray tube (CRT) and liquid crystal display (LCD) Monitors in the region, both from the qualitative and quantitative perspective.

Gina Hicks - One of the best experts on this subject based on the ideXlab platform.

  • Characterization of Monitor recycling in Seattle, Washington
    Regional Environmental Change, 2010
    Co-Authors: Seungjin Lee, Joyce Cooper, Gina Hicks
    Abstract:

    With the rapid growth of electronic waste (e-waste), policies that aim to effectively manage this waste stream have been introduced globally in recent years. Seattle, Washington, has been on the forefront of introducing policies to divert e-waste from the landfills and maximize recycling. With the introduction of the Take-it-Back-Network, a solid recycling infrastructure has existed in the Greater Seattle region since 2003. In 2009, the E-Cycle Washington program took into effect and now allows recyclers to offer free recycling of certain e-waste to households and small entities. Although policies to divert e-waste from the landfill to reuse and recycling is effective, there is also a need to analyze the current regional recycling infrastructure’s capacity to handle changing equipment and material quantities. This study aims to characterize the Seattle regional e-waste management capacity, with a focus on retired Monitors as an example of a changing e-waste technology. We investigated waste Computer Monitor recycling in the Greater Seattle region, which includes the counties of King, Pierce, Snohomish, and Kitsap. Interviews were conducted on 20 collectors, 1 handler, and 2 processors to collect information on their business models, Computer Monitor management processes, and collection/processing quantities. Using this information, we summarize the material flows of end-of-life (EOL) cathode ray tube (CRT) and liquid crystal display (LCD) Monitors in the region, both from the qualitative and quantitative perspective.

Joyce Cooper - One of the best experts on this subject based on the ideXlab platform.

  • a life cycle assessment of end of life Computer Monitor management in the seattle metropolitan region
    Resources Conservation and Recycling, 2011
    Co-Authors: Michael S Noon, Seungjin Lee, Joyce Cooper
    Abstract:

    Abstract A life cycle assessment was performed on the management of waste Computer Monitors from King, Pierce, Snohomish, and Kitsap counties in Washington State considering four options for the final destination of the Monitors; reuse, recycling, sanitary landfilling, or hazardous waste landfilling. The system was interpreted in two ways; comparing the disposal of a single cathode ray tube (CRT) and liquid crystal display (LCD) Monitor and the expected regional change in Monitor disposals between 2008 and 2010. The results were separated into two scenarios, one in which credit was given for the avoidance of primary material production in response to the generation of recyclables and one where credit was not given. The effect of avoiding primary material production was large enough to change the impact assessment results from a system that consumed energy, contributed to global warming, and generated air emissions to one that produced energy, reduced global warming, and was a sink of air emissions. LCD Monitor disposal had lower impacts than CRT Monitor disposal in all impact categories except for the management of mercury. This translates into a reduction of the impact or an increase in the benefit for each impact category, except the management of mercury, for the system from 2008 to 2010 due to changing composition of the Monitor disposal stream from CRT to LCD technology.

  • Characterization of Monitor recycling in Seattle, Washington
    Regional Environmental Change, 2010
    Co-Authors: Seungjin Lee, Joyce Cooper, Gina Hicks
    Abstract:

    With the rapid growth of electronic waste (e-waste), policies that aim to effectively manage this waste stream have been introduced globally in recent years. Seattle, Washington, has been on the forefront of introducing policies to divert e-waste from the landfills and maximize recycling. With the introduction of the Take-it-Back-Network, a solid recycling infrastructure has existed in the Greater Seattle region since 2003. In 2009, the E-Cycle Washington program took into effect and now allows recyclers to offer free recycling of certain e-waste to households and small entities. Although policies to divert e-waste from the landfill to reuse and recycling is effective, there is also a need to analyze the current regional recycling infrastructure’s capacity to handle changing equipment and material quantities. This study aims to characterize the Seattle regional e-waste management capacity, with a focus on retired Monitors as an example of a changing e-waste technology. We investigated waste Computer Monitor recycling in the Greater Seattle region, which includes the counties of King, Pierce, Snohomish, and Kitsap. Interviews were conducted on 20 collectors, 1 handler, and 2 processors to collect information on their business models, Computer Monitor management processes, and collection/processing quantities. Using this information, we summarize the material flows of end-of-life (EOL) cathode ray tube (CRT) and liquid crystal display (LCD) Monitors in the region, both from the qualitative and quantitative perspective.