RESEARCH BASE
Search 3,721 documents across 34 fields — every claim tier-rated by evidence
3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.
1,680 results for "po tolo" — page 37 of 84
Z_1_13 — DNA Repair Mechanisms and Genome Stability
Every human cell sustains an estimated 10,000–100,000 DNA lesions per day from endogenous sources alone — oxidative metabolism, spontaneous hydrolysis, replication errors, and reactive metabolites — while environmental m
Z_1_04 — Gene Expression and Regulation
Gene expression regulation — the molecular mechanisms controlling when, where, and how much each gene is active — is the central process that enables a single genome to produce ~200 distinct cell types, orchestrate embry
Z_1_01 — ENCODE Project, Non-Coding DNA & Epigenetics
The human genome is ~3.2 billion base pairs long, but only ~1.5% encodes proteins. The remaining ~98.5% was once dismissed as "junk DNA." The ENCODE Project (2003–present) revealed that at least 80% of the genome has bio
Z_1_18 — Junk DNA & the ENCODE Controversy: Function, Noise, and the Human Genome
The term "junk DNA" — coined by Susumu Ohno (1972) to describe non-coding DNA sequences in eukaryotic genomes that appeared to have no functional role — ignited one of the most contentious debates in modern genomics: how
Z_1_05 — Genomic Imprinting and Parent-of-Origin Effects
Genomic imprinting is an epigenetic phenomenon in which a gene's expression depends on whether it was inherited from the mother or the father — violating the standard Mendelian assumption that both parental copies functi
Z_1_19 — Non-Coding RNA and Gene Regulation
Non-coding RNAs (ncRNAs) — RNA molecules that are transcribed from the genome but do not encode proteins — have emerged as central regulators of gene expression, challenging the classical "one gene–one protein" paradigm
Z_1_10 — Chromosome Evolution and Karyotype
Karyotype — the number, size, and morphology of chromosomes in a cell — varies enormously across species, from n=1 in the ant Myrmecia pilosula to n=630 in the fern Ophioglossum reticulatum. Humans have 2n=46 (23 pairs),
Z_1_12 — Genome Architecture and 3D Organization
The human genome — approximately 6.4 billion base pairs of DNA — is packed into a nucleus only ~6 μm in diameter. If stretched end-to-end, the DNA of a single human cell would extend about 2 meters, yet it is packaged an
Z_1_14 — Chromatin Remodeling: Epigenetic Architecture of the Genome
Chromatin remodeling — the dynamic restructuring of the protein-DNA complex (chromatin) that packages eukaryotic genomes — is a central mechanism of gene regulation and a cornerstone of epigenetics. In eukaryotic cells,
Z_4_23 — Memory as Physical and Molecular Phenomenon
What is a memory made of? The question has driven neuroscience from Santiago Ramón y Cajal's 1894 hypothesis that learning strengthens connections between neurons, through Donald Hebb's 1949 postulate that "neurons that
Z_4_15 — Molecular Motors: Kinesin, Dynein, and Myosin
Molecular motors — protein machines that convert the chemical energy of ATP hydrolysis into directed mechanical work — are the engines of cellular life, responsible for transporting cargo within cells, driving cell divis
Z_4_22 — Protein Chaperone Systems
Molecular chaperones are a diverse group of proteins that assist other proteins in achieving and maintaining their correct three-dimensional structures — preventing misfolding, aggregation, and toxic accumulation of non-
Z_4_14 — RNA Interference: Gene Silencing by Small RNAs
RNA interference (RNAi) — the process by which small double-stranded RNA molecules silence gene expression by targeting complementary messenger RNA (mRNA) for degradation or translational repression — is one of the most
K_3_09 — Minimal Consciousness and the Threshold of Sentience
Where does consciousness begin? This question — the problem of the threshold of sentience — is one of the most challenging in consciousness studies because it requires identifying what KIND of physical system is minimall
K_3_06 — Disorders of Consciousness: Coma, Vegetative State, and Minimal Consciousness
Disorders of consciousness (DoC) — coma, vegetative state (now termed unresponsive wakefulness syndrome/UWS), and minimally conscious state (MCS) — represent some of the most challenging clinical and philosophical proble
K_3_16 — Anesthesia and Consciousness: What Going Under Reveals
General anesthesia provides a unique experimental window into consciousness: the ability to reversibly abolish and restore awareness in a controlled clinical setting. Despite over 175 years of practice since William T.G.
K_3_08 — Intention, Volition, and Motor Consciousness
The neural basis of voluntary action and the timing of conscious intention relative to brain activity has become one of the most productive — and philosophically consequential — research programs in consciousness studies
K_3_15 — Anesthesia and the Mechanisms of Consciousness Loss
General anesthesia — the reversible abolition of consciousness through pharmacological agents — is one of the most remarkable phenomena in medicine: it routinely eliminates subjective experience in millions of patients d
K_3_13 — Coma, Vegetative State, and Minimally Conscious State: Clinical Boundaries
Disorders of consciousness (DoC) — clinical conditions in which awareness (the content of consciousness — perception, thought, experience) and/or arousal (the level of wakefulness — eyes open, sleep-wake cycles) are seve
K_3_11 — Animal Consciousness and Sentience
The question of whether non-human animals possess conscious experience — subjective awareness, felt pain, emotions, and self-recognition — has moved from philosophical speculation to a major neuroscientific research prog
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