It was reported that in 2016, 39% of adults around the world were overweight, with 13% falling into the category of obese. This figure represents a tripling of worldwide obesity since 1975, which has resulted in an increase in cardiovascular diseases, diabetes, musculoskeletal disorders, and some forms of cancer.

Office space falls into the category of commercial real estate, which is a building or land that exists in order to generate profits for the owner. In quarter 3 of 2018, NAR reports that the office rental vacancy rate was at 12.9%. Office experts are usually retained in order to lend their expertise to cases that involve valuation, contracts, and real estate, and more.

Oil is a thick liquid composed mainly of hydrogen and carbon. There are three common uses for oil. Transportation oils are used in transportation vehicles. Fuel oils are used for the generation of heat and electricity, asphalt and road oil.

Oncology is the medical branch that concentrates on the diagnosis and treatment of cancer. There are three main areas of Oncology: medical, radiation, and surgical.

The term “operations” essentially refers to transforming resources or data inputs into desired goods, services, or results, to create and deliver value to the customers. In actual practice operations are used to designate multiple activities.

Operations Management is the implementation of business practices to obtain the highest level of efficiency within an organization. Operations managers are concerned with converting labor and materials into goods and services in the most efficient manner to maximize their organization’s profit.

Ophthalmology is the study of medical conditions involving the eyes. Ophthalmologists are doctors that specialize in the medical and surgical treatment of the eyes.

The term “optics” has two distinct definitions. The first refers to anything of or relating to the eye or vision. The second definition refers to anything of or relating to the science of optics or optical equipment.

The term “optimization” essentially refers to an act, process, or methodology of making something as fully perfect, functional, or effective as possible. To achieve the best results, the following factors need to be maximized: productivity, reliability, strength, efficiency, utilization, and longevity.

An option is a contract within the realm of finance that provides buyers with the right to sell or buy an asset or instrument at a specific strike price on or before a specified date.There are many types of options, but the two main types are calls and puts. Calls allows the buyer to buy the underlying asset or the financial asset on which a derivative’s price is based. Puts gives the buyer the right to sell the underlying asset.

Organic chemists study a variety of chemical substances including carbon-based compounds, hydrocarbons, and compounds based on a range of elements. This chemistry is the study of life and all of the chemical reactions related to life.

Organic synthesis is a focus area within chemical synthesis that is concerned with the intended construction of organic compounds using reactions that are also organic. Organic molecules are often more complex than inorganic compounds, which makes the synthesis of organic compounds is one of the most important parts of organic chemistry.

Orthodontics is the treatment of irregularities of the teeth, such as alignment and occlusion. Orthodontists are dentists that specialize in the straightening of teeth with braces, and misaligned jaws. They examine, diagnose, and treat dental malocclusions and oral cavity anomalies.

Orthopedic surgery is the branch of medicine that surgically and non-surgically treats conditions involving the musculoskeletal system, including, but not limited to, musculoskeletal trauma, sports injuries, degenerative diseases, infections, tumors, and congenital disorders. Following medical school, orthopedic surgeons spend 5 years in an orthopedic surgery residency training program.

Orthopedics is the branch of medicine that deals with deformities of bones or injuries to muscles, tendons, and ligaments. This specialized practice treats sports injuries, broken bones, infections, joint problems (arthritis), congenital conditions, degenerative conditions (osteoporosis) and bone tumors.

OSHA, the Occupational Health and Safety Administration, is the United States Department of Labor department created in 1970 to regulate workplace safety and health. Their goal is to prevent work related illnesses, injuries, and death.

Otolaryngology is a medical specialty field that focuses on the ears, nose, and throat, such as injuries of the ear and nose, sinus conditions, respiratory, face, and jaw issues. There are also Otolaryngologists-head and neck that specialize in head and neck medicine and surgery for thyroid, and parathyroid disorders, cancers of the head and neck, and voice and swallowing disorders.

Outsourcing is the process where companies contract with other companies to manage the services they need, but they do not want to provide themselves. This process helps companies in the United States to be more competitive in the international marketplace by reducing short term costs, increasing efficiency, and keeping labor costs low by hiring in developing markets with lower standards of living.