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All articles starting with P

28,818 articles

PC algorithm

The PC algorithm, named for Peter Spirtes and Clark Glymour, is a constraint-based causal discovery method that infers the structure of a causal directed acyclic graph from conditional independence tests on observational data.

PC Card

The PC Card, originally called the PCMCIA card, is a credit-card-sized removable expansion card that plugs into a 68-pin slot in a portable computer to add memory, modems, or network adapters.

PC Engine SuperGrafx (PCエンジンスーパーグラフィックス)

The PC Engine SuperGrafx (PCエンジンスーパーグラフィックス) is a home video game console NEC released in Japan in late 1989, an upgraded PC Engine that sold only about 75,000 units.

PC game

A PC game, or personal computer game, is a video game played on a general-purpose computer using a keyboard, mouse, or gamepad, rather than a console.

PC Gamer

PC Gamer is a monthly PC gaming magazine and website founded by Future Publishing in November 1993 (UK edition; US edition 1994), now part of Future plc, known for its reviews since 1993, the annual PC Gaming Show, and Game of the Year awards.

PC Master Race

PC Master Race (PCMR): PC gaming community and meme coined satirically by Yahtzee Croshaw in a 2008 Witcher review; r/pcmasterrace founded April 30, 2011 by Pedro19, now about 3.56 million members.

PC Music

PC Music (Personal Computer Music) is the London record label and art collective founded by A. G. Cook in June 2013; a hyperpop originator, it ended new releases in 2023 and now reissues its archive.

PC-10

PC-10 (PC10, CVCL_7088) is a human lung squamous cell carcinoma cell line from a Japanese female, distributed by IBL Tokyo, carrying TP53 p.Gly245Cys, with cisplatin-resistant sublines PC10-B3 and PC10-E5.

PC-13

PC-13 (CVCL_B259, RRID:CVCL_B259) is a human lung large cell carcinoma cell line from Immuno-Biological Laboratories, Tokyo, from a Japanese male donor, carrying EGFR L858R (in 10% of cells) and TP53 Gly334Val mutations; distinct from the murine PC13 embryonal carcinoma line.

PC-3

PC-3 (CVCL_0035, ATCC CRL-1435) is a human prostate cancer cell line established in 1979 from a bone metastasis in a 62-year-old man; androgen-insensitive, AR- and PSA-negative, highly metastatic, with neuroendocrine features.

PC-6

PC-6 (CVCL_C002, also PC 6, PC6) is a human small cell lung carcinoma cell line established by Immuno-Biological Laboratories, Tokyo, from a Japanese donor, used in chemotherapy and drug-resistance research with nine drug-resistant sublines.

PC-8800 series (PC-8800シリーズ)

The PC-8800 series, also known as PC-88, was a family of 8-bit personal computers sold by NEC in Japan from 1981 to 1989, beginning with the PC-8801.

PC-9

PC-9 (PC9, CVCL_B260) is a human lung adenocarcinoma cell line from a 45-year-old male, carrying the EGFR exon 19 delE746-A750 deletion and homozygous TP53 R248Q; a standard EGFR-TKI sensitivity and drug-resistance model, formerly confused with PC-14.

PC-FX

PC-FX: NEC Home Electronics and Hudson Soft's 32-bit Japan-only console, released December 23, 1994, successor to the PC Engine. No 3D hardware, FMV-focused, 61 games, about 300,000 units sold, discontinued 1998.

PC/104

PC/104 is a family of embedded computer standards, maintained by the PC/104 Consortium since 1992, that defines compact stackable single-board computers later extended with PCI and PCI Express buses.

PC12

PC12 (PC-12) rat adrenal pheochromocytoma cell line established by Greene and Tischler in 1976; synthesizes dopamine and norepinephrine and differentiates into sympathetic-neuron-like cells in response to NGF; standard neuroscience model, ATCC CRL-1721.

Pca Growth Capital

PCA Growth Capital is a New York-based growth-capital and venture fund manager that raised two funds of roughly $66 million each between 2013 and 2016.

PCA3

PCA3 (prostate cancer antigen 3, DD3) is a long non-coding RNA overexpressed in prostate cancer and measured in post-DRE first-catch urine; the FDA-approved PROGENSA assay (P100033, 2012, withdrawn 2023) computes a PCA3/PSA RNA ratio score, cutoff 25, for repeat-biopsy decisions.

PCA3 test

The PCA3 test is a urine-based molecular diagnostic measuring prostate cancer antigen 3 RNA after a digital rectal exam; FDA-approved in 2012, it was withdrawn in 2023.

Pcap

Pcap (packet capture) is a file format for recording network packets, created in the late 1980s at Lawrence Berkeley National Laboratory as the standard interchange format for tcpdump and Wireshark.

PCB Piezotronics

PCB Piezotronics is an American manufacturer of vibration, pressure, force, and torque sensors in Depew, New York, founded in 1967 and known for its ICP sensors.

PCBM

PCBM ([6,6]-phenyl-C61-butyric acid methyl ester, also written PC61BM) is a fullerene derivative that served as the dominant electron acceptor in organic solar cells for two decades and is also used in perovskite solar cells.

PCBP1

PCBP1 (poly(rC) binding protein 1), also known as hnRNP E1, is a human gene encoding an RNA-binding protein that delivers iron to ferritin and has roles in immunity and cancer.

PCBP2

PCBP2 (poly(rC) binding protein 2), gene at 12q13.13, is a human three-KH-domain RNA-binding protein regulating translation, mRNA stability, iron metabolism, cancer, and antiviral innate immunity via MAVS degradation.

PCCW

PCCW is a Hong Kong telecommunications and media company formed when Richard Li's Pacific Century Group acquired the incumbent telephone operator Cable & Wireless HKT in August 2000.

PCD Forever Tour

PCD Forever Tour: 2026 reunion tour by The Pussycat Dolls (Nicole Scherzinger, Kimberly Wyatt, Ashley Roberts trio), marking 20 years of the album PCD; 53 announced dates, North American leg canceled May 2026, European leg ran September–October 2026.

PCDH19 clustering epilepsy

PCDH19 clustering epilepsy (PCDH19-CE, formerly EFMR or girls clustering epilepsy) is a rare X-linked epilepsy caused by PCDH19 variants, affecting heterozygous females via cellular interference, with fever-triggered seizure clusters beginning in infancy.

Pchilka Patera

Pchilka Patera, a 100 km patera (volcanic depression) on Venus at 26.5N, 234.0E, IAU-approved 1997, named for Olena Pchilka (Olga Kosach), Ukrainian writer and ethnographer (1849-1930).

PCI configuration space

The PCI configuration space is a dedicated register address space defined by the PCI Local Bus specification, which firmware and operating systems use to discover PCI devices and assign resources.

PCI Express

PCI Express (PCIe), also known as Peripheral Component Interconnect Express, is a high-speed serial expansion bus standard developed by PCI-SIG, replacing the parallel PCI bus from 2003.