All articles starting with P
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Peder Oluf Pedersen
Peder Oluf Pedersen (1874–1941) was a Danish engineer and physicist who co-developed the Poulsen arc radio transmitter and the telegraphone magnetic recorder with Valdemar Poulsen.
Peder Pedersen
Peder Pedersen (1945–2015) was a Danish track cyclist who won Olympic gold in the 1968 Mexico City team pursuit and the 1974 world sprint championship, later leading the Danish Cycling Union and the UCI's Anti-Doping Commission.
Peder Rasch
Peder Rasch (Bent Peder Benjamin Rasch, 1934–1988), Danish sprint canoeist; with Finn Haunstoft won C-2 1,000 m gold at Helsinki 1952 in 4:38.3, youngest Olympic canoeing gold medalist at 18.
Peder Severin Krøyer
Peder Severin Krøyer, known as P.S. Krøyer (1851–1909), was a Danish painter and central figure of the Skagen Painters, celebrated for his blue-toned 'blue hour' beach scenes.
Pederasty
Pederasty (Greek paiderastia) is the erotic relationship between an adult male and an adolescent boy, historically institutionalized in ancient Greece as erastes-eromenos mentorship, later practiced in Rome, and criminalized under Christianity; distinct from pedophilia in definition.
Pederasty in ancient Greece (παιδεραστία)
Pederasty in ancient Greece (paiderastia) was a socially recognized erastes-eromenos relationship combining mentorship and eroticism, dated by Percy after 650 BC, institutionalized in Crete and Sparta, and declining in democratic Athens.
Pedersen device
The Pedersen device was a conversion unit that turned a modified M1903 Springfield rifle into a semi-automatic weapon, developed by John D. Pedersen during World War I.
Pedestal (plasma physics)
The pedestal is the narrow region of steep pressure gradient at the outer edge of a tokamak plasma, formed by the edge transport barrier in H-mode.
Pedestals of Biahmu
The Pedestals of Biahmu are the remains of two colossal seated statues of Pharaoh Amenemhat III, erected about 1800 BC at Biahmu in the Fayum, Egypt.
Pedestrian and cycle tunnels by region
Pedestrian and cycle tunnels by region surveys where tunnels for walkers and cyclists cluster, covering the 1950s-to-1970s subway boom, river crossings like Rotterdam's Maastunnel, and modern Nordic cycle tunnels.
Pedestrian bridges in the United States by state
Pedestrian bridges in the United States by state surveys how footbridges are defined, registered, counted, and funded across the states, drawing on the National Bridge Inventory, the National Register of Historic Places, and state inventories.
Pedestrian crossing
A pedestrian crossing, or crosswalk, is a designated point on a roadway where people on foot are entitled to cross, ranging from painted stripes to signal-controlled facilities.
Pedestrian dead reckoning
Pedestrian dead reckoning (PDR) is a navigation technique that estimates a walking person's position step by step from inertial sensors, mainly indoors where satellite positioning is unavailable.
Pedestrian hybrid beacon
The pedestrian hybrid beacon (PHB), first developed as the HAWK in Tucson, Arizona, in the late 1990s, is a traffic device that lets pedestrians cross busy roads safely.
Pedestrian refuge island
A pedestrian refuge island is a raised median in the center of a road where pedestrians can stand while crossing one direction of traffic at a time.
Pedi Kingdom
The Pedi Kingdom (Bapedi) was an African kingdom in the eastern Transvaal, shaped under Chief Thulare in the late eighteenth century and resisting Boer and British forces until Sekhukhune I's defeat in 1879.
Pediarix
Pediarix (DTaP-HepB-IPV), GlaxoSmithKline's pentavalent infant vaccine licensed December 13, 2002 (BLA 103907), given as a 3-dose series at 2, 4, 6 months to HBsAg-negative mothers' infants aged 6 weeks to 6 years; not for birth dose or boosters.
Pediatric acute myeloid leukemia
Pediatric acute myeloid leukemia (AML) is a rare cancer of myeloid blood-forming cells in children and young adults, genetically distinct from adult AML and treated with intensive multi-cycle chemotherapy.
Pediatric acute respiratory distress syndrome
Pediatric acute respiratory distress syndrome (PARDS) is ARDS in children under 18, defined by PALICC (2015) and PALICC-2 (2023) criteria using OI/OSI thresholds; affects 3.2% of PICU admissions.
Pediatric and congenital cardiology
Pediatric and congenital cardiology is the medical subspecialty that diagnoses and non-surgically treats heart disease in fetuses, neonates, children, and adolescents, following patients into adulthood.
Pediatric and neonatal electrocardiography
Pediatric and neonatal electrocardiography (ECG) is the recording and age-adjusted interpretation of the heart's electrical activity in children, whose normal values differ markedly from adult ones.
Pediatric Anesthesia
Pediatric anesthesia: conducting anesthesia procedures in infants, children, and adolescents. Also called paediatric anaesthesia; defined by age-specific physiology, credentialing standards, and Wake Up Safe safety data.
Pediatric arterial ischemic stroke
Pediatric arterial ischemic stroke (childhood AIS, neonatal AIS) is blockage of a brain artery causing infarction in children; incidence 1.2-8/100,000, arteriopathy-dominated causes, and 2026 AHA/ASA thrombolysis and thrombectomy recommendations.
Pediatric collagenous gastritis
Pediatric collagenous gastritis (childhood-onset collagenous gastritis, ORPHA:487809) is a rare gastric disease with a subepithelial collagen band over 10 µm, causing abdominal pain and severe iron deficiency anemia in children, with a generally benign course.
Pediatric dentistry
Pediatric dentistry, formerly called pedodontics until the name changed in 1984, is the dental specialty concerned with the dental problems, maintenance, and treatment of children, from early childhood through adolescence.
Pediatric dermatology
Pediatric dermatology, also called paediatric dermatology, is the subspecialty treating skin disease in infants, children, and adolescents; organized from 1972–1975, board-recognized in 2000, with its journal Pediatric Dermatology since 1983.
Pediatric diabetes
Pediatric Diabetes (ISSN 1399-543X), founded 2000 by Munksgaard, is a peer-reviewed bimonthly journal on diabetes in childhood and adolescence, MEDLINE-indexed since 2003, moving from Wiley to Maximum Academic Press in 2026.
Pediatric early warning score
The pediatric early warning score (PEWS) converts a hospitalized child's vital signs into a numerical acuity score, with threshold scores linked to an escalation of care.
Pediatric emergency care
Pediatric emergency care: emergency treatment of acutely ill or injured children, a US field formalized in the 1980s (first fellowship 1980, first journal 1985), supported by PECARN research network and 2026 AAP/ACEP readiness guidelines.
Pediatric hematology and oncology
Pediatric hematology and oncology is the medical subspecialty diagnosing and treating childhood blood disorders and cancers. Related journal: Pediatric Hematology and Oncology (ISSN 0888-0018), published since 1986 by Taylor & Francis.