valid safety guidelines

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• Lasers and aviation safety — Under certain conditions, laser light or other bright lights (spotlights, searchlights) directed at aircraft can be a hazard. The most likely scenario is when a bright visible laser light causes distraction or temporary flash blindness to a pilot …   Wikipedia

• Vehicle inspection — is a procedure mandated by national or subnational governments in many countries, in which a vehicle is inspected to ensure that it conforms to regulations governing safety, emissions, or both. Inspection can be required at various times, e.g.,… …   Wikipedia

• Mobile phone radiation and health — A man speaking on a mobile telephone The effect of mobile phone radiation on human health is the subject of recent interest and study, as a result of the enormous increase in mobile phone usage throughout the world (as of June 2009 …   Wikipedia

• MS Challenge Walk — The MS Challenge Walk is a walk a thon to raise money for multiple sclerosis, a chronic disease that affects the central nervous system. Multiple Challenge Walks are held throughout the year across the United States. Each walk is two to three… …   Wikipedia

• Swimming — is the movement by humans or animals through water, usually without artificial assistance. Swimming is an activity that can be both useful and recreational. Its primary uses are bathing, cooling, travel, fishing, escape, and sport. Animals with… …   Wikipedia

• Ground support equipment — (GSE) is found at an airport, usually on the ramp, the servicing area by the terminal. This equipment is used to service the aircraft between flights. As its name implies, GSE is there to support the operations of aircraft on the ground. The… …   Wikipedia

• Attention-deficit hyperactivity disorder controversies — Methylphenidate (Ritalin) 10mg Pill (Ciba/Novartis), a drug commonly prescribed to treat ADHD The causes, diagnosis, and the treatment of attention deficit hyperactivity disorder (ADHD) have been the subject of active debate at least since the… …   Wikipedia

• environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

• Gun laws in the United States (by state) — U.S. Firearms Legal Topics Assault weapons ban ATF Bureau Brady Handgun Violence Prevention Act Concealed carry in the U.S. Domestic Violence Offender Gun Ban …   Wikipedia

• Evidence-based medicine — (EBM) aims to apply evidence gained from the scientific method to certain parts of medical practice. It seeks to assess the quality of evidencecite journal |author=Elstein AS |title=On the origins and development of evidence based medicine and… …   Wikipedia

• education — /ej oo kay sheuhn/, n. 1. the act or process of imparting or acquiring general knowledge, developing the powers of reasoning and judgment, and generally of preparing oneself or others intellectually for mature life. 2. the act or process of… …   Universalium