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Ataxic cerebral palsy is observed in approximately 5–10% of all cases of cerebral palsy, making it the least frequent form of cerebral palsy. Ataxic cerebral palsy is caused by damage to cerebellar structures. Because of the damage to the cerebellum, which is essential for coordinating muscle movements and balance, patients with ataxic cerebral palsy experience problems in coordination ...
- Often unknown or brain injury
- Prenatal to early childhood
Classification ALS is a motor neuron disease, which is a group of neurological disorders that selectively affect motor neurons, the cells that control voluntary muscles of the body. Other motor neuron diseases include primary lateral sclerosis (PLS), progressive muscular atrophy (PMA), progressive bulbar palsy, pseudobulbar palsy, and monomelic amyotrophy (MMA).
- Unknown (about 85%), genetic (about 15%)
- Neurology
- 45–75 years
- History and Etymology
- Overview
- Kinetic Energy For Non-Relativistic Velocity
- Relativistic Kinetic Energy
- Kinetic Energy in Quantum Mechanics
- See Also
- References
The adjective kinetic has its roots in the Greek word κίνησις kinesis, meaning "motion". The dichotomy between kinetic energy and potential energy can be traced back to Aristotle's concepts of actuality and potentiality. The principle in classical mechanics that E ∝ mv2 was first developed by Gottfried Leibniz and Johann Bernoulli, who described ki...
Energy occurs in many forms, including chemical energy, thermal energy, electromagnetic radiation, gravitational energy, electric energy, elastic energy, nuclear energy, and rest energy. These can be categorized in two main classes: potential energyand kinetic energy. Kinetic energy is the movement energy of an object. Kinetic energy can be transfe...
Treatments of kinetic energy depend upon the relative velocity of objects compared to the fixed speed of light. Speeds experienced directly by humans are non-relativisitic; higher speeds require the theory of relativity.
If a body's speed is a significant fraction of the speed of light, it is necessary to use relativistic mechanics to calculate its kinetic energy. In relativity, the total energy is given by the energy-momentum relation: Here we use the relativistic expression for linear momentum: p = m γ v {\displaystyle p=m\gamma v} , where γ = 1 / 1 − v 2 / c 2 {...
In quantum mechanics, observables like kinetic energy are represented as operators. For one particle of mass m, the kinetic energy operator appears as a term in the Hamiltonian and is defined in terms of the more fundamental momentum operator p ^ {\displaystyle {\hat {p}}} . The kinetic energy operator in the non-relativisticcase can be written as ...
Physics Classroom (2000). "Kinetic Energy". Retrieved 2015-07-19.School of Mathematics and Statistics, University of St Andrews (2000). "Biography of Gaspard-Gustave de Coriolis (1792–1843)". Retrieved 2006-03-03.Serway, Raymond A.; Jewett, John W. (2004). Physics for Scientists and Engineers (6th ed.). Brooks/Cole. ISBN 0-534-40842-7.Tipler, Paul (2004). Physics for Scientists and Engineers: Mechanics, Oscillations and Waves, Thermodynamics (5th ed.). W. H. Freeman. ISBN 0-7167-0809-4.- KE, Eₖ, K or T
- joule (J)
The Felix M. Warburg House is a mansion at 1109 Fifth Avenue on the Upper East Side of Manhattan in New York City. It was built from 1907 to 1908 for the German-American Jewish financier Felix M. Warburg, in the Châteauesque style, and designed by C. P. H. Gilbert. After Warburg's death in 1937, his widow sold it to a real estate developer.
The following notable deaths occurred in 2024. Names are reported under the date of death, in alphabetical order. A typical entry reports information in the following sequence: Name, age, country of citizenship at birth, subsequent nationality (if applicable), what subject was noted for, cause of death (if known), and reference.
Dengue fever is a mosquito-borne tropical disease caused by dengue virus. It is frequently asymptomatic; if symptoms appear they typically begin 3 to 14 days after infection. These may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic skin itching and skin rash. Recovery generally takes two to seven days.
Plate tectonics (from Latin tectonicus, from Ancient Greek τεκτονικός (tektonikós) 'pertaining to building')[1] is the scientific theory that Earth's lithosphere comprises a number of large tectonic plates, which have been slowly moving since about 3.4 billion years ago.[2] The model builds on the concept of continental drift, an ...
