Results 161 to 170 of about 751,043 (293)

Data-driven analysis of dynamic amplification for ballast-less railway track: using a triple-beam model and XGBoost. [PDF]

Sci Rep
Koohmishi M, Adibi M.
europepmc   +1 more source

Connectivity and Selective Rural Migration

International Economic Review, EarlyView.
ABSTRACT How does infrastructure shape rural development? Using household panel data from a nationally representative sample of Chinese villages, matched to high‐resolution highway maps, we find that road expansion between 2000 and 2015 operates mainly through reallocation, with less productive farmers scaling down or exiting and more productive ...
Lin Ma, Yuan Mei, Qunfeng Wu, Mingzhi (Jimmy) Xu   +3 more
wiley   +1 more source

An improved YOLOv8n with multi-scale feature fusion for real time and high precision railway track defect detection. [PDF]

Front Artif Intell
Zhang Z, Zhang L, Lu X, Ma T, Huang F, Zhong S.   +5 more
europepmc   +1 more source

Exact and metaheuristic approaches to minimizing makespan in parallel machine scheduling with conflicting jobs

International Transactions in Operational Research, EarlyView.
Abstract We address the scheduling conflicting jobs on parallel identical machines problem with makespan minimization, a classical and computationally challenging variant of parallel machine scheduling. We develop and evaluate three distinct solution methodologies: a novel constraint programming (CP) formulation, and two metaheuristics: a multi ...
Roberto Maria Rosati, Dinh Quy Ta, Minh Hoàng Hà, Andrea Schaerf   +3 more
wiley   +1 more source

Risk Factors of Low Back Pain Among Railway Track-Maintainers in India: A Cross-Sectional Survey. [PDF]

J Chiropr Med
Das B.
europepmc   +1 more source

Absent Europe: Civic Protest and the Erosion of EU Symbolism in Serbia

JCMS: Journal of Common Market Studies, EarlyView.
Abstract This article analyses the strategic management of European Union (EU) references in Serbia's 2024–2025 student mobilisation. Drawing on original fieldwork and 18 semi‐structured interviews, the article integrates framing theory with the Discourse‐Historical Approach to reconstruct how EU‐related meanings were produced and operationalised.
Anna Seliverstova
wiley   +1 more source

Evaluation of Ballasted Railway Track Response in Potentially Critical Areas Using Vibration Measurements. [PDF]

Sensors (Basel)
Uranjek M, Štrukelj A.
europepmc   +1 more source

Measuring success in HS treatment from the physician's and the patient's perspective

Journal of the European Academy of Dermatology and Venereology, EarlyView.
Integrated clinician (HiSCR, IHS4, IHS4‐55, HS‐IGA) and patient (HiSQOL, DLQI) scores, combined with imaging‐based fibrosis and inflammation assessment, redefine treatment success in hidradenitis suppurativa by aligning treat‐to‐target strategies with both inflammatory control and irreversible structural damage.
Georgios Nikolakis, Monika Arenbergerova, Zeljko Mijuskovic, Baoxi Wang, Christos C. Zouboulis   +4 more
wiley   +1 more source

Non-Uniform Deployment of LWSN for Automated Railway Track Fastener Maintenance Robot and GA-LEACH Optimization. [PDF]

Sensors (Basel)
Shen Y, Meng J.
europepmc   +1 more source

The Adaptive Objectives of State‐Owned Enterprises amid Economic and Political Shifts: Evidence from Brazilian Firms, 1973–1993

Journal of Management Studies, EarlyView.
Abstract We theorize how state ownership reweights organizational objectives when political and market conditions shift. Using a mixed‐method, history‐to‐theory design, we examine 160 state‐owned and 132 private Brazilian firms from 1973 to 1993. We argue that two mechanisms – appointment politicization and constituency‐protection salience – alter ...
Paul Ferreira, Sergio G. Lazzarini, Aldo Musacchio   +2 more
wiley   +1 more source