For patients undergoing Thulium laser enucleation of the prostate (ThuLEP) for benign prostatic hyperplasia (BPH), there are no significant differences in intraoperative and postoperative complications or in functional outcomes ...
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A protein called Meteorin-like (METRNL) in the tumor microenvironment saps energy from T cells, thereby severely limiting their ability to fight cancer, according to new research directed by investigators at the Johns Hopkins ...
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Millions of people worldwide suffer from liver inflammation (hepatitis), an acute or chronic disease with a variety of causes. Liver inflammation frequently occurs in connection with metabolic disorders, for example fatty ...
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Botanicals like turmeric, green tea and black cohosh may seem benign, but their overuse is being increasingly linked to liver injury.
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Processed, and especially ultra-processed, foods have been blamed for the national rise in obesity, high blood pressure and diabetes.
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Cardiologists in Mayo Clinic's Heart Rhythm Clinic are using a new innovative energy source to safely and successfully treat a common type of heart arrhythmia. The therapy, called pulsed field ablation (PFA), has received ...
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Snacks provide, on average, about one-fourth of most people's daily calories. With nearly 1 in 3 adults in the United States overweight and more than 2 in 5 with obesity, according to the National Institutes of Health, researchers ...
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Policy reform is urgently needed to assist older adults who live in southern U.S. cities and who experience higher-than-expected heat-related health issues if they don't have adequate access to air conditioning, according ...
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In recent years, the intense pressure professional athletes endure has come under scrutiny, highlighted by incidents like gymnast Simone Biles withdrawing from the 2020 Tokyo Olympics and tennis player Naomi Osaka stepping ...
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A randomized clinical trial published in Developmental Medicine & Child Neurology has assessed whether injections of botulinumtoxin-A in calf muscles benefit children with cerebral palsy.
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In physics, energy (from the Greek ἐνέργεια - energeia, "activity, operation", from ἐνεργός - energos, "active, working") is a scalar physical quantity that describes the amount of work that can be performed by a force, an attribute of objects and systems that is subject to a conservation law. Different forms of energy include kinetic, potential, thermal, gravitational, sound, light, elastic, and electromagnetic energy. The forms of energy are often named after a related force.
Any form of energy can be transformed into another form, but the total energy always remains the same. This principle, the conservation of energy, was first postulated in the early 19th century, and applies to any isolated system. According to Noether's theorem, the conservation of energy is a consequence of the fact that the laws of physics do not change over time.
Although the total energy of a system does not change with time, its value may depend on the frame of reference. For example, a seated passenger in a moving airplane has zero kinetic energy relative to the airplane, but non-zero kinetic energy relative to the Earth.
This text uses material from Wikipedia, licensed under CC BY-SA
