Research works
The research papers we track — the newest first. Works with a plain-language summary link to it.
136583 work(s)
- Physics & SpaceOpen access
This research explores homothetic matter collineations of static plane symmetric space-times through a comprehensive analysis of the stress-energy tensor’s contravariant, co-variant and mixed representations. When dealing with non-degenerate energy-momentumtensors, the contravari...
- AI & ComputingOpen access
Hodge Conjecture via Derived Categories and the HKR Isomorphism
Abstract This memoir presents a proof of the Hodge conjecture on smooth complex projective algebraic varieties. By transposing the topological problem of rational cycles into the existence of objects in the bounded derived category of coherent sheaves Db(X), we show that the conj...
- AI & ComputingOpen access
A Sparse-Defect Counterexample to Abelian-Border Periodicity
Charlier, Harju, Puzynina and Zamboni asked whether an infinite word whose sufficiently long factors are all Abelian bordered must be Abelian periodic. We give a negative answer over the binary alphabet. The construction combines a four-height periodic nearest-neighbor path with...
- AI & ComputingOpen access
Tracing learner responsiveness through temporal interaction patterns
Educational AI systems increasingly seek to personalize support by tracking how learners interact with feedback and instructional events. However, many current systems emphasize activity quantity over learners’ responsiveness to pedagogical timing. This study models behavioural r...
- Climate & EnvironmentOpen access
Revisiting climate extremes in South America and their modulation by oceanic teleconnections
Abstract This study characterizes spatiotemporal patterns of climate extremes in South America (SA) and assesses oceanic mode influences using daily MERGE and SAMeT data (2000–2024). Eight ETCCDI indices reveal a north–central precipitation gradient linked to the ITCZ, with dry s...
- Society & EconomicsOpen access
IDEA: AUTO VIDEO SCOUT — evaluate this trading strategy video for the swarm: VIDEO: "Build & Optimise a London Breakout EA in MQL5 (5-Year Backtest)" by MQLXpert — https://www.youtube.com/watch?v=J60Ji_rTuUI (duration 1907s, 205 views; found via search 'london breakout forex stra...
- Physics & SpaceOpen access
EXTRACTED METHOD: astronomical_sky_match — E8 Intelligence Research
rule: Compile positions of all astronomical symbols in VMS; run Stellarium simulations for 1400-1450 CE over Central Europe; find dates where sky layout matches manuscript's rosette arrangement with >90% overlap; report top 3 candidate dates. source: rlab #202 Author: Andrew Stew...
- AI & ComputingOpen access
On the Number of Integer Zeros of Straight-Line Polynomials and Smale's 4th Problem
This preprint provides an exhaustive 10-page mathematical monograph on Smale's 4th Problem (Steve Smale, 2000), dedicated to the number of integer and real zeros of polynomials computed by short straight-line programs (arithmetic circuits). Smale's 4th problem asks whether the nu...
- Engineering & TechnologyOpen access
EXTRACTED METHOD: test_acoustic_fracture_threshold — E8 Intelligence Research
rule: Model granite fracture under 7.83 Hz and harmonics using published rock mechanics data; output stress vs. copper tool hardness. source: rlab #204 Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence...
- Health & Medicine
Background and Purpose Pancreatic β‐cell ATP‐sensitive potassium (K ATP ) channels play a central role in glucose homeostasis by coupling cellular metabolism to insulin secretion. Although conventional K ATP channel inhibitors are effective insulin secretagogues, their clinical u...
- Physics & SpaceOpen access
Nonlinear gyrokinetics of the compact spherical-tokamak breeder at the frozen negative-triangularity design point. Nonlinear CGYRO with kinetic electrons shows negative triangularity cutting ion-scale (ITG+TEM) transport by 40-45 percent versus a positive-triangularity twin, with...
- Engineering & TechnologyOpen access
High penetration of wind and photovoltaic generation reshapes power system net-load profiles and increases the computational burden of repeatedly solving security-constrained unit commitment problems under multiple renewable scenarios. This paper proposes a fast schedule generati...
- Health & MedicineOpen access
The consumption of ultra-processed foods (UPFs) has been increased worldwide. Given its association with adverse health outcomes, monitoring long-term trends in UPF intake is important. However, evidence among Asian adults on UPF intake and health outcomes is limited. We analyzed...
- AI & ComputingOpen access
LUT-SHA256: Arithmetic-Free Execution of SHA-256 through Chained Look-Up Tables
This work presents LUT-SHA256, an alternative execution architecture for theSHA-256 compression function in which no arithmetic, logical, or shiftoperation is ever applied to message data. The proposal rests on twostructural theorems: addition modulo 2^32 is reformulated as a fou...
- Health & Medicine
Summary While the majority of myeloid neoplasms are sporadic, the increasing application of germline genetic testing has led the World Health Organization to designate ‘ Myeloid malignancies with germline predisposition’ as a distinct clinical entity, carrying major implications...
- Society & EconomicsOpen access
Volume 33 Number 01 April 1955
- Society & Economics
Introduction: Implicit bias contributes to health care disparities. Addressing implicit bias is one focus of health professions education and learners desire instruction in the topic. Few faculties received skills-based instruction in addressing implicit bias during their own edu...
- Physics & SpaceOpen access
A tilt statistic for structure-coupled dark energy: a systematics-immune discriminant in fsigma8
Redshift-space distortion measurements constrain the product f*sigma8, whose overall amplitude is degenerate with sigma8 and with any multiplicative calibration of the analysis pipeline. Models in which dark energy couples to structure formation generically predict not a uniform...
- Biology
The emerging roles of non-coding RNAs in cancer
Abstract Non-coding RNAs (ncRNAs) regulate gene expression through transcriptional, post-transcriptional, and epigenetic mechanisms, shaping hallmarks of cancer, including metastasis, therapy resistance, and relapse. Carcinogenesis arises when aberrant ncRNA networks initiate mal...
- Society & EconomicsOpen access
The State and the Start-up: Rethinking Government Support for Youth Entrepreneurship in The Gambia
Youth entrepreneurship occupies a central place in the development strategies of low-income economies, yet the institutional conditions under which state support translates into viable enterprise remain poorly understood. Nowhere is this question more urgent than in The Gambia, a...