Brain in irregular patterns; other neurons are quiet most of the time, but occasionally emit a burst of action potentials. Axons transmit signals to other neurons by means of specialized junctions called synapses. A single axon may make as many as several thousand synaptic connections with other cells. When an action potential, traveling along an axon, arrives at a synapse, it causes a chemical called a neurotransmitter to be released. The neurotransmitter binds to receptor molecules in the membrane of the target cell. Synapses are the key functional elements of the brain. The essential function of the brain is cell-to-cell communication,
Office of the Privacy Commissioner for Personal Data the Data Subject. The ordinance was passed in 1995. Data subject refers to : Examples of data subject protected by this ordinance include name, address, phone number, identity card number, photo, medical record and employment records. The data user, who collects, holds, or process this data is liable for any unlawful or wrongful use of this data. In 2010, it was reported that Octopus Card issuer has made HK$44 million in the past 4 1/2 years by selling cardholder data. This was disclosed in a special hearing conducted by the personal data privacy commissioner. Octopus Holdings chief executive Prudence Chan