2d Vhit Testing
2d Vhit Testing - Related Videos
01:29
Vectors in 2D: Problem Solving
0 Views •
2026
A plane traveling due north at 180 km/h in still air was found to be 80 km off-course after 30 minutes, deviating approximately 5 degrees east of north. This deviation means the influence of a crosswind alters the plane’s intended trajectory. The actual ground path formed a diagonal, suggesting that the aircraft’s effective ground speed was reduced to 160 km/h and directed slightly to the east due to the wind.By analyzing the displacement from the intended path, the velocity contributed by the...
03:27
2D Co-culture of Leukemic Cells with BMSCs: A Method to Obtain Subpopulations of Leukemic Cells
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2023
This video describes the technique for long term 2D co-culture of leukemia cells with bone marrow stromal cells to study their interaction with the bone marrow microenvironment. The 2D coculture model utilizes the acute lymphoblastic leukemia cells and the bone marrow stromal or osteoblasts that influence tumor cell phenotype. This study will support investigation of the mechanisms that underlie bone marrow supported survival of leukemic cells during chemotherapy exposure.
10:51
Consensus Brain-derived Protein, Extraction Protocol for the Study of Human and Murine Brain Proteome Using Both 2D-DIGE and Mini 2DE Immunoblotting
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Cited by 8 •
2014
A common protein extraction protocol using urea/thiourea/SDS buffer for human and mice brain tissue allows indentification of proteins by 2D-DIGE and their subsequent characterization by mini 2DE immunoblotting. This method enables one to obtain more reproducible and reliable results from human biopsies and experimental models.
07:47
Anxiety Testing
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2023
Anxiety is a commonly observed behavioral disorder that stems from fear. It is described as increased restlessness, or unpleasant feelings of fear over anticipated events. Experimenters often use rodent models to better understand anxiety disorders in humans. They use different paradigms, like exposing rodents to bright spaces or loud sounds, which are known to induce fear. These tests combined with other interventions such as surgery or drug-administration may assist researchers in pinpointing...
11:08
Tests on Wood
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2023
Source: Roberto Leon, Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA Wood is a ubiquitous material that has been used in construction from the earliest times. Wood is a renewable, sustainable material with great aesthetic value. Today, there are probably more buildings constructed with wood than any other structural material. Many of these buildings are singlefamily residences, but many larger apartment buildings, as well as commercial and industrial buildings,...
FAQs
The system compares the velocity of each brief head movement with the velocity of the resulting eye movement. This relationship reflects how effectively the vestibulo-ocular reflex stabilizes vision while the head moves. By recording both signals during unpredictable impulses, clinicians obtain an objective measure of vestibular performance rather than relying only on reported symptoms.
Reduced vestibulo-ocular reflex gain means that eye movement does not adequately match head movement. Corrective saccades are compensatory eye movements that may appear when visual stability is disrupted. Together, these findings can indicate impaired vestibular function and help clinicians recognize abnormal responses during assessment of patients with dizziness, vertigo, or suspected peripheral vestibular disorders.
The semicircular canals contribute to vestibular responses during head movement, so examining their function helps identify canal-related abnormalities. Because the test provides information about canal performance, it can add objective evidence when peripheral vestibular dysfunction is suspected. This canal-specific information supports clinical evaluation without replacing the broader assessment of balance and vestibular symptoms.
A clinician delivers brief, unpredictable head impulses while a video camera records the patient's eye movements. The system simultaneously evaluates the relationship between eye and head velocities, allowing the response to be examined during rapid movement. Its noninvasive format and rapid collection of objective information make the procedure suitable for clinical vestibular assessment.
Clinicians may use the test when dizziness, vertigo, or a suspected peripheral vestibular disorder requires objective evaluation. Because it focuses on vestibulo-ocular reflex and semicircular-canal function, it can complement other balance assessments rather than provide the entire clinical picture alone. Combining findings helps place canal responses within the patient's broader vestibular evaluation.
The results can contribute to diagnosing vestibular disease by showing reduced vestibulo-ocular reflex gain or corrective saccades associated with impaired function. Clinicians can also use the objective canal-function information to support treatment planning and monitor vestibular disease over time. Its rapid measurements make it useful both during initial evaluation and during subsequent clinical review.