Progress and development sustain our economy and ever-growing population; however, they do take a toll on the environment. To contain the environmental effects of development, the United States Green Building Council created LEED: Leadership in Energy and Environmental Design. LEED is a rating system for green building for construction companies and general contractors to follow. There are a few reasons why you want to work with a general contractor who follows LEED.
First, LEED offers a whole-building approach to green construction. To promote sustainability, contractors need to consider the design, construction, and operation of buildings; LEED provides contractors with the tools needed to accomplish this. There are five main areas that LEED recognizes as crucial to human and environmental health: indoor environmental quality, energy efficiency, water conservation, materials selection, and sustainable site development.
So why is LEED, or green construction, so important? Because of the large amount of land use, energy and water consumption, and air and atmosphere alteration buildings account for, the EPA sees reducing the amount of natural resources building consume and the amount of pollution they give off as critical for future sustainability. The environmental impact of buildings is often underestimated and poorly addressed. On the other hand, the costs of green building are often overestimated, turning contractors away from it. While the cost up-front may be more expensive than non-green building, the cost over a life span is generally much cheaper, because of the building’s efficiency. Does your general contractor follow LEED? Knowi
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In my 2-Minute Neuroscience videos I simplistically explain neuroscience topics in 2 minutes or less. In this video, I discuss the motor cortex. I describe the location and functions of the primary motor cortex and the nonprimary motor cortex, which is often divided into the supplementary motor cortex and premotor cortex. I also describe the main pathways by which motor information travels away from the motor cortex: the corticospinal tract, which carries motor information to the spinal cord to cause movement of the body, and the corticobulbar tract, which carries motor information to the brainstem to cause movement of the head, neck, and face.
Welcome to 2 minute neuroscience, where I simplistically explain neuroscience topics in 2 minutes or less. In this installment I will discuss the motor cortex.
The motor cortex is a region of cortex in the frontal lobe that is involved with voluntary movement. It is located anterior to a large sulcus called the central sulcus and is often divided into two major regions: the primary motor cortex and the nonprimary motor cortex.
The primary motor cortex is found in the strip of cortex known as the precentral gyrus, which is located just anterior to the central sulcus. The primary motor cortex is arranged such that different parts of the region are associated with motor control of different parts of the body and thus is said to contain a motor map of the body.
Most of the neurons that travel from the primary motor cortex carrying signals regarding movement will enter one of two major motor pathways: the corticospinal or corticobulbar tract. The corticospinal tract carries movement-related signals to the spinal cord to cause movement of the body, while the corticobulbar tract carries signals to the brainstem to cause movement of the head, neck, and face.
The nonprimary motor cortex is often divided into two main regions: the supplementary motor cortex and the premotor cortex. Although the functions of these areas are not well understood, it is thought the supplementary motor cortex may be involved with the execution of sequences of movement, the attainment of motor skills, and the selection of movements based on incoming sensory information. The premotor cortex contributes about 30% of the neurons that enter the corticospinal tract, but seems to be more active during the planning of, rather than the execution of, movements.