RESEARCH BASE
Search 3,717 documents across 34 fields — every claim tier-rated by evidence
398 results for "Cen Jianyong" — page 3 of 20
G_1_20 — Dendrochronology, Luminescence & Advanced Dating Methods
Beyond radiocarbon dating, archaeology and geochronology rely on a suite of complementary dating methods, each with distinct strengths, limitations, and applicable time ranges. Dendrochronology (tree-ring dating), pionee
O_3_04 — Bioluminescence — Deep Sea Light, Firefly Synchrony, and Cultural Significance
Bioluminescence — the production of light by living organisms — is among the most widespread and independently evolved traits in biology, having arisen at least 40 separate times across the tree of life. In the deep ocea
O_3_12 — Cenote and Sinkhole Ecology — Surface-Groundwater Connections
Cenotes (from the Maya ts'onot) and sinkholes — natural depressions or holes formed by the dissolution of soluble bedrock (limestone, dolostone, gypsum) in karst landscapes — are far more than geological curiosities. The
D_1_12 — Chichen Itza — Calendrical Pyramid and Sacred Cenote
Chichen Itza, located in the northern limestone lowlands of the Yucatan Peninsula, Mexico, was one of the largest and most powerful Maya cities during the Terminal Classic and Early Postclassic periods (c. 750–1250 CE).
D_4_09 — Cenotes: Maya Sacred Wells, Karst Hydrology, and Underworld Cosmology
Cenotes (from Yucatec Maya dz'onot or ts'onot) are natural sinkholes formed by the dissolution and collapse of limestone bedrock in the Yucatan Peninsula, exposing the vast underground freshwater aquifer beneath. Over 6,
B_3_04 — Chimeric Beings — Centaurs, Sphinxes, Minotaurs, and Composite Entities
Composite beings — entities combining human and animal features — appear in the art and mythology of every major civilization. From the Egyptian Sphinx and Mesopotamian Lamassu to the Greek Centaur, Hindu Garuda, and Mes
ZD_3_09 — History of the Internet — From ARPANET to the Decentralized Web
The Internet — the global network of interconnected computer networks using standardized protocols to exchange data — is the most transformative communication technology since the printing press, connecting over 5 billio
ZD_4_16 — Swarm Intelligence & Self-Organizing Systems: Decentralized Problem-Solving
Swarm intelligence (SI) — the emergent collective behavior of decentralized, self-organized systems in which simple agents following local rules produce globally intelligent, adaptive solutions without central control —
Y_4_13 — Collective Effervescence and Group Altered States
Collective effervescence — Émile Durkheim's term (The Elementary Forms of Religious Life, 1912) for the heightened emotional energy generated when people gather and act together in coordinated ritual — describes a group
Y_3_06 — Awe, Wonder, and Transcendent Emotions
Awe — the emotional response to perceived vastness that requires accommodation (cognitive restructuring of existing mental schemas) — has emerged as a frontier topic in affective neuroscience, positive psychology, and ph
H_3_18 — Digital Information Control and Algorithmic Censorship
The shift from print and broadcast media to digital platforms (c. 2000–present) has created new mechanisms of information control that differ fundamentally from historical censorship. Unlike state censorship, which remov
H_4_05 — Digital Age Censorship and Algorithm Suppression
The digital age has introduced unprecedented mechanisms for information suppression, censorship, and narrative control that operate at global scale and often remain invisible to those affected. This document examines thr
ZE_4_04 — Ethics of Free Speech and Censorship
Free speech and its limits constitute one of the most contentious areas of applied ethics and political philosophy, touching on fundamental questions about the relationship between individual liberty, social harm, and st
F_2_11 — Ancient Spice and Incense Routes: Aromatic Trade Networks
The trade in aromatic substances — frankincense, myrrh, cinnamon, cassia, pepper, cloves, nutmeg, camphor, sandalwood, spikenard, and dozens of other plant-derived resins, barks, seeds, and oils — constitutes one of the
F_2_18 — Ancient Trade in Aromatics: Frankincense, Myrrh, and Sacred Resins
Frankincense (Boswellia sacra and related species) and myrrh (Commiphora myrrha) — aromatic tree resins harvested from the arid landscapes of southern Arabia (Oman's Dhofar region, Yemen's Hadramawt) and the Horn of Afri
F_3_18 — Vavilov Centers: Origins of Cultivated Plants
The Vavilov centers of origin are the regions of the world where the greatest genetic diversity of cultivated plants and their wild relatives is found — identified by the Russian/Soviet botanist, geneticist, and plant ge
ZA_1_16 — Sonoluminescence: Light from Sound and the Mystery of Collapsing Bubbles
Sonoluminescence is the emission of short bursts of light from gas bubbles in a liquid when excited by ultrasonic sound waves. First observed by H. Frenzel and H. Schultes at the University of Cologne in 1934 (multi-bubb
V_3_11 — Mathematical Optimization: Linear Programming, Convex Methods, and Gradient Descent
Mathematical optimization — finding the best solution from a set of feasible alternatives — is one of the most practically impactful branches of mathematics, with applications spanning logistics, finance, engineering, ma
W_1_23 — Pre-Pottery Neolithic B (PPNB)
The Pre-Pottery Neolithic B (PPNB, c. 8800–6500 BCE) represents one of the most transformative periods in human history — the era when small communities of early farmers in the Levant and Upper Mesopotamia scaled up into
W_2_13 — Sogdian Civilization: Silk Road Merchants and Cultural Brokers
The Sogdians — an Eastern Iranian people centered in the fertile valleys of the Zerafshan and Kashkadarya rivers (modern Uzbekistan and Tajikistan — the cities of Samarkand and Bukhara) — were the quintessential merchant
BROWSE BY SECTION — 3717 documents across 34 fields