All articles starting with F
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Fragging
Fragging is the killing or attempted killing of a military superior with a fragmentation grenade, most often by members of his own unit during the Vietnam War.
Fraggle Rock
Fraggle Rock is a children's puppet television series created by Jim Henson, following the musical Fraggles on HBO from 1983 to 1988 across four seasons and 96 episodes.
Fraggle Rock: Back to the Rock
Fraggle Rock: Back to the Rock is The Jim Henson Company's reboot of Fraggle Rock on Apple TV+, premiering January 21, 2022, with season 2 on March 29, 2024, Emmy wins, and a live touring stage show.
Fragilaria
Fragilaria, established by Lyngbye in 1819, is a genus of araphid freshwater diatoms forming ribbon-shaped colonies, widely used in paleolimnology to reconstruct past lake conditions.
Fragile (Madonna song)
"Fragile" is a 2026 song by Madonna from CONFESSIONS II, written and produced with Stuart Price. A downbeat trip-hop and UK garage elegy for her late brother Christopher Ciccone, it runs 4:19 and is widely called the album's most affecting track.
Fragile (Yes album)
Fragile is the fourth studio album by English prog band Yes, released 26 November 1971 on Atlantic. First album with keyboardist Rick Wakeman, first Roger Dean cover, and Yes' breakthrough via the hit single Roundabout, reaching US Top 10 and double platinum.
Fragile (프래자일)
Fragile (프래자일) is a 2024 South Korean high-teen drama, an 8-episode U+ Mobile TV original by STUDIO X+U with an all-rookie cast, following Joongang High School teens through love, friendship, and academic pressure.
Fragile masculinity
Fragile masculinity, also called precarious manhood or masculinity threat, is the theory that manhood is an earned, easily lost status defended when challenged; meta-analysis shows small-to-medium effects (d=.45) on emotions and self-perception, though political-attitude findings failed replication.
Fragile States Index
The Fragile States Index (FSI), formerly the Failed States Index, is an annual ranking by the US Fund for Peace, published since 2005, scoring 178 countries on twelve CAST conflict-risk indicators using triangulated content analysis, quantitative data, and expert review.
Fragile topology
Fragile topology is a band topology in crystals whose topological obstruction vanishes when suitable trivial bands are added, identified by Po, Watanabe, and Vishwanath in 2018.
Fragile X syndrome
Fragile X syndrome, or Martin-Bell syndrome, is a genetic neurodevelopmental disorder caused by a repeat expansion in the FMR1 gene, and a leading inherited cause of intellectual disability and autism.
Fragile X-associated primary ovarian insufficiency
FXPOI (Fragile X-associated primary ovarian insufficiency) is ovarian failure before age 40 in women carrying an FMR1 premutation of 55-200 CGG repeats; about 20% of carriers are affected, with irregular periods, infertility, and early menopause.
Fragile X-associated tremor/ataxia syndrome
FXTAS (fragile X-associated tremor/ataxia syndrome) is a late-onset neurodegenerative disorder of FMR1 premutation carriers (55–200 CGG repeats), causing intention tremor, cerebellar ataxia, and cognitive decline after age 50, mainly in men.
Fragility (glass physics)
In glass physics, fragility is a measure of how steeply a liquid's viscosity increases on cooling toward the glass transition, introduced by C. Austen Angell in 1985.
Fragility analysis
Fragility analysis is a probabilistic reliability method of structural and earthquake engineering that estimates the probability a structure reaches a defined damage state at a given hazard intensity.
Fragility curve
A fragility curve, in earthquake engineering, gives the conditional probability that a structure exceeds a defined damage state given the intensity of ground motion, and links seismic hazard to expected losses.
Fragment
Fragment (Duanzhang, 断章) is a four-line poem written by Bian Zhilin in 1935 and collected in his volume Fish Eyes, among the most quoted poems of modern Chinese literature.
Fragment analysis
Fragment analysis is a capillary electrophoresis method that separates fluorescently labeled DNA fragments by color and size against an internal standard, used in forensics and genotyping.
Fragment molecular orbital method
The fragment molecular orbital (FMO) method is an approximate ab initio quantum chemistry technique for large molecules such as protein-ligand complexes, introduced by Kazuo Kitaura and colleagues in 1999.
Fragment screening
Fragment screening is a drug discovery method that tests very small molecules for weak binding to target proteins, which are then grown into drug leads.
Fragmentation (computing)
Fragmentation in computing is the scattering of a file or allocated memory across noncontiguous locations on a disk or in physical memory, hindering performance and allocations.
Fragmentation (reproduction)
Fragmentation (reproduction): asexual reproduction where a body breaks into parts that regenerate into complete individuals; seen in sea stars, planarians, Spirogyra, fungi, and plants, distinct from fission and budding.
Fragmentation (weaponry)
Fragmentation is a damage mechanism of explosive munitions in which the casing breaks apart or preformed fragments are hurled outward at high velocity on detonation.
Fragmentation functions
A fragmentation function gives the probability density that an outgoing high-energy quark or gluon produces an observed hadron carrying a fraction of the parton's momentum.
Fragmentation of Former Qin after Fei River
The fragmentation of Former Qin (前秦崩解) was the breakup of Fu Jian's empire after his defeat at the Fei River, with conquered peoples rising to restore their power.
FragPunk
FragPunk is a free-to-play 5v5 hero shooter by NetEase's Bad Guitar Studio, launched March 6, 2025 on PC and April 29 on consoles, known for 169 rule-bending Shard Cards and 13 Lancers.
Fragrance of the First Flower (第一次遇见花香的那刻)
Fragrance of the First Flower (第一次遇见花香的那刻) is a 2021 Taiwanese lesbian romance mini-series of six 15-minute episodes on GagaOOLala, which won three Golden Bell Awards including Lead Actress.
Fragrance of the First Flower 2 (第一次遇见花香的那刻2)
Fragrance of the First Flower 2 (第一次遇见花香的那刻2) is a 2025 Taiwanese lesbian romance drama series, a sequel directed by Wang Yi-ling, starring Lin Chen-hsi and Cheng Yu-hsi on GagaOOLala and Netflix.
Fragrances and Colours Garden
Fragrances and Colours Garden (Geuren- en kleurentuin, Jardin des senteurs et des couleurs) is a fenced thematic garden at Plantentuin Meise, Belgium, opened 2020, growing plants used for perfumes and dyes, with a katsura scent tunnel smelling of fresh biscuits.
FRAIL scale
The FRAIL scale is a five-item self-report questionnaire screening older adults for physical frailty, proposed in 2008 and validated in 2012, requiring no physical examination.