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INFO: Full form for RSVP is Rapid Syntactic Visual Processing in Medical category
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In electrocardiography, during a cardiac cycle, once an action potential is initiated, there is a period of time that a new action potential cannot be initiated. This is termed the effective refractory period (ERP) of the tissue. This period is approximately equal to the absolute refractory period (ARP), it occurs because the fast sodium channels remain closed until the cell fully repolarizes.During this period, depolarization on adjacent cardiac muscles does not produce a new depolarization in the current cell as it has to refract back to phase 4 of the action potential before a new action potential can activate it. ERP acts as a protective mechanism and keeps the heart rate in check and prevents arrhythmias, and it helps coordinates muscle contraction. Anti-arrhythmic agents used for arrhythmias usually prolong the ERP. For the treatment of atrial fibrillation, it is a problem that the prolongation of the ERP by these agents also affects the ventricles, which can induce other types of arrhythmias.

Exposure therapy is a technique in behavior therapy to treat anxiety disorders. Exposure therapy involves exposing the target patient to the anxiety source or its context without the intention to cause any danger. Doing so is thought to help them overcome their anxiety or distress. Procedurally, it is similar to the fear extinction paradigm developed for studying laboratory rodents. Numerous studies have demonstrated its effectiveness in the treatment of disorders such as generalized anxiety disorder, social anxiety disorder, obsessive-compulsive disorder, post-traumatic stress disorder (PTSD), and specific phobias.

INFO: Full form for PHS is Pittsburgh Herpetological Society in Medical category
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INFO: Full form for PHS is Physician Health Services in Medical category
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Pediatric Home Service (PHS) is an independent home health care provider. PHS provides in-home care to medically-complex children in Minnesota and is certified by The Joint Commission. PHS offers in-home pediatric health care services.

INFO: Full form for PHS is Professional Hospital Supply in Medical category
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INFO: Full form for PHS is Prolene Hernia Solution in Medical category
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INFO: Full form for PHS is Physicians Health Study in Medical category
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Public health has been defined as "the science and art of preventing disease”, prolonging life and improving quality of life through organized efforts and informed choices of society, organizations (public and private), communities and individuals. Analyzing the determinants of health of a population and the threats it faces is the basis for public health. The public can be as small as a handful of people or as large as a village or an entire city; in the case of a pandemic it may encompass several continents. The concept of health takes into account physical, psychological, and social well-being.

Public health is an interdisciplinary field. For example, epidemiology, biostatistics, social sciences and management of health services are all relevant. Other important sub-fields include environmental health, community health, behavioral health, health economics, public policy, mental health, health education, health politics, occupational safety, disability, dental public health, gender issues in health, and sexual and reproductive health. Public health, together with primary care, secondary care, and tertiary care, is part of a country's overall health care system. Public health is implemented through the surveillance of cases and health indicators, and through the promotion of healthy behaviors. Common public health initiatives include promotion of hand-washing and breastfeeding, delivery of vaccinations, suicide prevention, smoking cessation, obesity education, increasing healthcare accessibility and distribution of condoms to control the spread of sexually transmitted diseases.

There is a significant disparity in access to health care and public health initiatives between developed countries and developing countries, as well as within developing countries. In developing countries, public health infrastructures are still forming. There may not be enough trained health workers, monetary resources or, in some cases, sufficient knowledge to provide even a basic level of medical care and disease prevention. A major public health concern in developing countries is poor maternal and child health, exacerbated by malnutrition and poverty.

From the beginnings of human civilization, communities promoted health and fought disease at the population level. In complex, pre-industrialized societies, interventions designed to reduce health risks could be the initiative of different stakeholders, such as army generals, the clergy or rulers. Great Britain became a leader in the development of public health initiatives, beginning in the 19th century, due to the fact that it was the first modern urban nation worldwide. The public health initiatives that began to emerge initially focused on sanitation (for example, the Liverpool and London sewerage systems), control of infectious diseases (including vaccination and quarantine) and an evolving infrastructure of various sciences, e.g. statistics, microbiology, epidemiology, sciences of engineering.

INFO: Full form for PHS is Primary Health System in Medical category
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INFO: Full form for PHS is Paperless Hospital Systems in Medical category
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INFO: Full form for PHS is Public Health Solutions in Medical category
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A notified body, in the European Union, is an organisation that has been designated by a member state to assess the conformity of certain products, before being placed on the EU market, with the applicable essential technical requirements. These essential requirements are publicised in European directives or regulations.

A manufacturer can use voluntarily European harmonised standards to demonstrate that a product complies with some (or all) of the EU essential requirements; a notified body can use the same harmonised standards to assess the conformity to these essential requirements. Conformity assessment can include inspection and examination of a product, its design, and the manufacturing environment and processes associated with it. For example, a notified body may designate that a medical device conforms to the Medical Devices Regulation (MDR (EU) 2017/745) which defines the applicable legislation, including the general safety and performance requirements, for medical devices. With this declaration of conformity, the manufacturer can label the product with the CE Mark, which is required for distribution and sale in the EU. Additionally, the EU member state accrediting the notified body will then inform the European Commission that the product complies with set standards (or not).

More generally, a notified body is an independent, accredited body which is entitled by an authorized accrediting body. Upon definition of standards and regulations, the accrediting body may allow a notified body to provide verification and certification services. These services are meant to ensure and assess compliance to the previously defined standards and regulations, but also to provide an official certification mark or a declaration of conformity.

INFO: Full form for NB is Nose Bleed in Medical category
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INFO: Full form for NB is Nocturnal Breeder in Medical category
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