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Curated data set from a study that investigated 77 primary high-grade astrocytomas and 23 matched recurrences so that changes in gene expression related to both survival and disease progression can be identified. Samples in the study include WHO grade III and IV astrocytomas with a wide range of survival times.

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• SciCrunch
• 13 years ago - by Anonymous

Curated series of expression data for 159 tumors from which RNA could be collected in sufficient amounts and quality for analysis from breast cancer patients. Tissue material was collected from all breast cancer patients receiving surgery at Karolinska Hospital from 1994-1996.

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• SciCrunch
• 13 years ago - by Anonymous

Assessment test that directly measures participants' visual acuity, or distance vision. The participant is seated 12.5 feet away from a computer monitor at eye level, and letters (called optotypes) are displayed one at a time on the screen for the participant to identify, using both eyes at the same time. As the participant successfully identifies optotypes of a given size, smaller ones appear on the screen, until the computer program ascertains the smallest-size optotype the participant can successfully see. Conversely, the program displays larger optotypes if the participant cannot see the letter size that is first displayed, until a size that he/she can accurately see is found. For participants ages 3-7, only the letters H, O, T, and V are used, and children may point to a laminated card showing the letters if they cannot verbalize or cannot recall the letter names. For participants ages 8 and above, the entire set of optotypes is used, following a common protocol used in professional vision testing. This test takes approximately three minutes to administer and is recommended for ages 3-85.

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• SciCrunch
• 13 years ago - by Anonymous

Assessment test that is a measure of gaze stability, which helps identify individuals who may have a deficit of the vestibular system (which regulates internal balance). The NIH Toolbox Visual Acuity Test must be administered followed by the DVA Test. Participants are seated 12.5 feet from a computer monitor at eye level. For the DVA Test, participants wear lightweight headgear that contains a rate sensor, and are asked to move the head back and forth, as if saying no. Once the head is measured to be moving at greater than 180 degrees per second, an optotype flashes on the monitor, and the participant is asked to identify it. Smaller optotypes are displayed as the participant correctly identifies letters, and larger ones are displayed if the participant cannot correctly identify the letter shown, until the computer has calculated the smallest size that the participant can see with the head moving. This is calculated separately for head rotation leftward and rightward from center (though the participant continues shaking the head both ways), and this performance is compared to the participant's visual acuity when the head was stationary (the NIH Toolbox Visual Acuity Test score, sometimes referred to as static visual acuity in the context of the DVA test). The difference between static and dynamic visual acuity represents the vestibular contribution to gaze stability. The DVA Test takes approximately six minutes to administer and is recommended for ages 3-85.

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• SciCrunch
• 13 years ago - by Anonymous

A 50 question psychological assessment that measures the symptoms of autism in adults, children and adolescents.

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• SciCrunch
• 13 years ago - by Anonymous

Data set from six research sites that examined the feasibility and outcomes of the most promising home and community-based intervention approaches for enhancing family caregiving for Alzheimers Disease (AD) and related disorders (ADRD). A unique feature is the examination of AD burdens and interventions in three ethnic groups (Caucasians, Hispanics, and African Americans). Caregiver/care recipient dyads are entered into the study using standardized eligibility criteria. The dyads are randomized at each intervention site using site-specific procedures. Standardized assessment batteries are administered at baseline, 6, 12, and 18 months. The five general types of REACH interventions are: Individual Information and Support strategies that increase caregivers' understanding of dementia and their particular caregiving situation; Group Support and Family Systems efforts that provide caregivers with multiple forms of social support; Psychoeducational and Skill-Based Training approaches that teach caregivers coping and behavioral management strategies; Home-Based Environmental interventions that modify the home environment's effect on the care recipient and support the caregiver; and Enhanced Technology Systems such as home-centered computer/telephone networks that are designed to reduce caregiver distress and isolation. REACH II was funded in 2001 to test a single multi-component intervention among family caregivers of persons with ADRD, building upon the findings of REACH. Recruitment for REACH II was completed in January 2004 with 642 participants entering the study across 5 participating sites.

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• SciCrunch
• 13 years ago - by Anonymous

Assessment test that measures the perceived intensity of quinine (a bitter tastant) and salt administered in liquid solutions. The tastants are applied to the tip of the tongue as well as the whole mouth and rated on a generalized labeled magnitude scale (ranging from no sensation at all to strongest sensation of any kind). The test is recommended for administration to participants ages 12-85 and takes approximately six minutes to administer.

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• SciCrunch
• 13 years ago - by Anonymous

A measure that consists of a single item measuring immediate (i.e., acute) pain in adults. As part of Toolbox, a single pain intensity item measures immediate (a.k.a. acute) pain for use in adults. It takes less than one minute to administer and is recommended for ages 18-85.

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• SciCrunch
• 13 years ago - by Anonymous

A self-report scale that measures the degree to which pain interferes with other activities in life in adults. Pain interference items were developed as part of the NIH PROMIS. This measure is administered as a computer-adaptive test and takes approximately three minutes. It is recommended for ages 8-85.

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• SciCrunch
• 13 years ago - by Anonymous

Assessment test to assess a person's ability to identify various odors. Participants use scratch 'n' sniff cards and after scratching them one at a time, are asked to identify which of four pictures on the computer screen matches the odor they have just smelled. Participants ages 10-85 are administered nine odor cards, while those ages 3-9 are administered five odor cards. Child participants (ages 3 -9 years) are first asked to identify the eight pictures that are used as answer choices, to ensure they can complete the task. Having identified the pictures, they are asked if they have tasted or smelled the objects or foods depicted. This test takes approximately 4 to 5 minutes to administer and is recommended for ages 3-85.

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• SciCrunch
• 13 years ago - by Anonymous

Assessment test that measures grip strength. Participants are seated in a chair with their feet touching the ground. With the elbow bent to 90 degrees and the arm against the trunk, wrist at neutral, participants squeeze the Jamar Plus Digital dynamometer as hard as they can for a count of three. The dynamometer provides a digital reading of force in pounds. A practice trial at less than full force and 1 test trial are completed with each hand. This protocol is adapted from the grip strength testing protocol of the American Society of Hand Therapy. The test takes approximately 3 minutes to administer and is recommended for ages 3-85.

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• SciCrunch
• 13 years ago - by Anonymous

Assessment test to measure gait speed where participants are asked to walk a short distance (4 meters) at their usual pace. Participants complete one practice and then two timed trials. Raw scores are recorded as the time in seconds required to walk 4 meters on each of the two trials, with the better trial used for scoring. The 4-Meter Walk Gait Speed Test is adapted from the 4-meter walk test in the Short Physical Performance Battery. The test takes approximately 3 minutes to administer (including instructions and practice). This test is recommended for ages 7-85.

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• SciCrunch
• 13 years ago - by Anonymous

Assessment test that measures sub-maximal cardiovascular endurance by recording the distance that the participant is able to walk on a 50-foot (out and back) course in 2 minutes. The participant's raw score is the distance in feet and inches walked in 2 minutes. The test is adapted from the American Thoracic Society's 6-Minute Walk Test Protocol. The test overall takes approximately 4 minutes to administer (with instructions and practice). This test is recommended for ages 3-85.

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• SciCrunch
• 13 years ago - by Anonymous

An Antibody supplier

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• SciCrunch
• 14 years ago - by Anonymous

Ontology of formal definitions (i.e., machine processable) for the types of structures commonly described in neuroanatomy.

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• SciCrunch
• 13 years ago - by Anonymous

A measure to assess static standing balance that involves the participant assuming and maintaining up to 5 poses for 50 seconds each. The sequence of poses is: eyes open on a solid surface, eyes closed on solid surface, eyes open on foam surface, eyes closed on foam surface, eyes open in tandem stance. Detailed stopping rules are in place to ensure participant safety with these progressively demanding poses. Postural sway is recorded for each pose using an accelerometer that the participant wears at waist level. This test takes approximately 7 minutes to administer and is recommended for ages 3-85.

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• SciCrunch
• 13 years ago - by Anonymous

Oligonucleotide design software that calculates optimal oligonucleotides for a range of tasks: sequence assembly, differential expression, and microarrays (cDNA and spotted oligos)., THIS RESOURCE IS NO LONGER IN SERVICE. Documented on September 16,2025.

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• SciCrunch
• 13 years ago - by Anonymous

Assessment test to measure the memory of patients using their ability to sort objects. It requires immediate recall and sequencing of different visually and orally presented stimuli. Pictures of different foods and animals are displayed with accompanying audio recording and written text (e.g., elephant), and the participant is asked to say the items back in size order from smallest to largest, first within a single dimension (either animals or foods, called 1-List) and then on 2 dimensions (foods, then animals, called 2-List). The score is equal to the number of items recalled and sequenced correctly, and the test takes approximately 7 minutes to administer. This test is recommended for ages 7-85, but is available for use as young as age 3, if requested.

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• SciCrunch
• 13 years ago - by Anonymous

Data set that looked at religion, self-rated health, depression, and psychological well-being in a sample of older Blacks and older Whites (aged 65 and over) within the United States. Questions were asked regarding religious status, activities, and beliefs among those who currently practice the Christian faith, those who used to be Christian but are not now, and those who have never been associated with any religion during their lifetimes. Demographic variables include age, race, sex, education, and income. Wave II was collected in 2004 and reinterviewed 1,024 respondents. There were 75 respondents who refused to participate, 112 who could not be located, 70 that were too ill for participation, 11 who had moved to nursing homes and 208 were deceased. * Dates of Study: 2001- 2004 * Study Features: Longitudinal, Minority Oversample * Sample Size: 1,500

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• SciCrunch
• 13 years ago - by Anonymous

A supplemental instrument that is a measure of speed of processing. The participant is presented with a set of nine symbols on the computer screen, each associated with a number 1-9, and is then presented with a series of symbols without numbers and is asked to orally say each number that should go with that symbol, without skipping any. The score is equal to the number of symbols correctly identified orally within two minutes. Recommended for ages 8-85 as a supplement to the Pattern Comparison Processing Speed Test or as a potential alternative in cases where a participant's motoric limitations would preclude administering the Pattern Comparison Processing Speed Test. Takes approximately 3 minutes to administer.

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• SciCrunch
• 13 years ago - by Anonymous