subacromial space
(noun)
The passage beneath the acromion, which is the bony process that extends laterally on the scapula.
Examples of subacromial space in the following topics:
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Impingement Syndrome
- Shoulder impingement syndrome, also called painful arc syndrome, supraspinatus syndrome, swimmer's shoulder, and thrower's shoulder, is a clinical syndrome that occurs when the tendons of the rotator cuff muscles become irritated and inflamed as they pass through the subacromial space, the passage beneath the acromion.
- Anything that causes further narrowing of this space can result in impingement syndrome.
- Inflammation and subsequent thickening of the subacromial bursa may also cause impingement.
- The impinging structures may be removed in surgery, and the subacromial space may be widened by resection of the distal clavicle and excision of osteophytes on the under-surface of the acromioclavicular joint.
- MRI showing subacromial impingement with partial rupture of the supraspinatus tendon.
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Rotator Cuff Injury and Dislocated and Separated Shoulder
- These procedures are used in the rotator cuff area to remove bone spurs (subacromial decompression), repair the tear by suturing the tendons, transfer tendons, and even replace the shoulder joint when arthritis has developed.
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Space
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The Space Race
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The Impact of the Office Environment on Employee Communication
- Work places are typically divided into three physical areas: work spaces, meeting spaces, and support spaces.
- Small meeting space – An open or semi-open space for two to four persons, suitable for short, informal interaction
- Filing space – An open or enclosed space for storing frequently used files and documents
- Storage space – An open or enclosed space for storing commonly used office supplies
- Circulation space – Space which is required for circulation on office floors, linking all major functions
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Personal Space
- An example of the cultural determination of personal space is how urbanites accept the psychological discomfort of someone intruding upon their personal space more readily than someone unused to urban life.
- Living in the city alters the development of one's sense of personal space.
- Most people value their personal space and feel discomfort, anger, or anxiety when that space is encroached.
- Permitting a person to enter personal space and entering somebody else's personal space are indicators of how the two people view their relationship.
- Moreover, individual sense of space has changed historically as the notions of boundaries between public and private spaces have evolved over time.
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A Geometrical Picture
- Any vector in the null space of a matrix, must be orthogonal to all the rows (since each component of the matrix dotted into the vector is zero).
- Therefore all the elements in the null space are orthogonal to all the elements in the row space.
- In mathematical terminology, the null space and the row space are orthogonal complements of one another.
- Similarly, vectors in the left null space of a matrix are orthogonal to all the columns of this matrix.
- This means that the left null space of a matrix is the orthogonal complement of the column $\mathbf{R}^{n}$ .
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The Relativistic Universe
- In this case, the set is the space-time and the elements are points in that space-time.
- A space-time with the $\eta$ metric is called Minkowski space and $\eta$ is the Minkowski metric.
- Four-dimensional Minkowski space-time is only one of many different possible space-times (geometries) which differ in their metric matrix.
- Thus, energy and momentum curves space-time.
- Minkowski space is the special space devoid of matter, and as a result, it is completely flat.
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Space
- Space is conceived of differently in each medium.
- Space is further categorized as positive or negative.
- "Positive space" can be defined as the subject of an artwork, while "negative space" can be defined as the space around the subject.
- Over the ages, space has been conceived of in various ways.
- Define space in art and list ways it is employed by artists
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Spaces Associated with a linear system Ax = y
- Now the column space and the nullspace are generated by $A$ .
- What about the column space and the null space of $A^T$ ?
- These are, respectively, the row space and the left nullspace of $A$ .
- The nullspace and row space are subspaces of $\mathbf{R}^{m}$ , while the column space and the left nullspace are subspaces of $\mathbf{R}^{n}$ .
- We can summarize these spaces as follows: