Results 121 to 130 of about 2,519,760 (307)

Metasurface‐Enabled Active‐Like Passive Radar

Advanced Science, EarlyView.
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li, Jiawen Xu, Hanting Zhao, Xu Zhao, Yanjin Chen, Tie Jun Cui, Vincenzo Galdi, Lianlin Li   +7 more
wiley   +1 more source

PM_2.5 and Lung Cancer: An Ecological Study (2014–2023) Using Data from Brazilian Capitals

Atmosphere
Air pollution remains a major global public health concern, with fine particulate matter (PM2.5) recognized as an important environmental risk factor for lung cancer.
Albery Batista de Almeida Neto, Fernando Rafael de Moura, Alicia da Silva Bonifácio, Vitória Machado da Silva, Rodrigo de Lima Brum, Ronan Adler Tavella, Ronabson Cardoso Fernandes, Glauber Lopes Mariano, Flavio Manoel Rodrigues da Silva Júnior   +8 more
doaj   +1 more source

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

Advanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Vincenzo Galdi   +4 more
wiley   +1 more source

Psychometric Design and Validation of the Urban Mobility Experiences Scale

Urban Science
Urban mobility plays a key role in territorial equity, access to services, and population well-being, as unfavorable mobility experiences are associated with stress and physical and mental deterioration.
Jaime Wenceslao Parra-Moroyoqui, Francisco Isaías Rivera-Meza, José Leonardo Jiménez-Ortiz, Omar Arodi Flores-Laguna, Guillermo Cano-Verdugo, Gener José Avilés-Rodríguez   +5 more
doaj   +1 more source

Urbanization and Health

Journal of the College of Community Physicians of Sri Lanka, 2011
DOI: 10.4038/jccpsl.v14i1.2941 Journal of the College of Community Physicians of Sri Lanka Vol.14(1) 2009 1 ...
openaire   +3 more sources

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Pollution-Aware Pedestrian Routing in Thessaloniki, Greece: A Data-Driven Approach to Sustainable Urban Mobility

Smart Cities
Urban air pollution remains a critical public health issue, especially in densely populated cities where pedestrians experience direct exposure to traffic-related and environmental emissions.
Josep Maria Salanova Grau, Thomas Dimos, Eleftherios Pavlou, Georgia Ayfantopoulou, Dimitrios Margaritis, Theodosios Kassandros, Serafim Kontos, Natalia Liora   +7 more
doaj   +1 more source

On the urbanization of poverty [PDF]

The author identifies conditions under which the urban sector's share of the poor population in a developing country will be a strictly increasing and strictly convex function of its share of the total population.
Ravallion, Martin
core  

Electric Field‐Induced Hole‐ and Electron‐Type Flat Bands in Twisted Double Bilayer Graphene

Advanced Electronic Materials, EarlyView.
The electronic structure of twisted double bilayer graphene is visualized using angle‐resolved photoemission spectroscopy with micrometer spatial resolution at twists of 3.1∘$^\circ$ and 6.0∘$^\circ$ as a function of gate voltage. Tunable hybridization effects and flat band formation occurs between valence and conduction band states due to a finite ...
Zhihao Jiang, Dongkyu Lee, Alfred J. H. Jones, Youngju Park, Paulina Majchrzak, Kimberly Hsieh, Chakradhar Sahoo, Thomas S. Nielsen, Kenji Watanabe, Takashi Taniguchi, Philip Hofmann, Yong P. Chen, Jeil Jung, Søren Ulstrup   +13 more
wiley   +1 more source

Pattern and Predictors of Post-partum Contraception in a Slum Population of a District of Odisha, India: A Cross Sectional Study

Preventive Medicine: Research & Reviews
Objective: To assess the prevalence, pattern and predictors of post-partum contraceptive use amongst married women in a slum population of Cuttack, Odisha, India.
Debjyoti Mohapatra, Saffalya Nayak, Santanu K Padhy   +2 more
doaj   +1 more source