Results 41 to 50 of about 28,837 (165)

Long‐Term Exposure to Air Pollution and Incidence of Parkinson's Disease: A Danish Nationwide Administrative Cohort Study

Movement Disorders, EarlyView.
Abstract Background Long‐term exposure to air pollution has been linked to Parkinson's disease (PD) incidence, yet evidence is mixed, partly because of challenges with PD diagnosis and definition. We examined this association in a nationwide administrative cohort.
Thomas Cole‐Hunter, Sonja Antic, Youn‐Hee Lim, Jiawei Zhang, Laust Hvas Mortensen, Kees de Hoogh, Steffen Loft, George Maria Napolitano, Stéphane Tuffier, Marie Laura Bergmann, Bert Brunekreef, Gerard Hoek, Beate Ritz, Zorana Jovanovic Andersen, Rina So   +14 more
wiley   +1 more source

Effects of spatially inhomogeneous atomic interactions on Bose-Einstein condensates in optical lattices

, 2011
An interplay of optical lattices and nonlinear impurities in controlling the dynamics of Bose-Einstein condensate bright solitons is investigated using effective potential approach.
Abdullaev, Abdullaev, Abdullaev, Adhikari, Adhikari, Anderson, Anderson, Arfken, Balaž, Balaž, Balaž, Balaž, Balaž, Balaž, Balaž, Bauer, Bauer, Belmonte-Beitia, Bloch, Bludov, Bogojević, Bradley, Brazhnyi, Brazhnyi, Buitrago, Carpentier, Cheng, Cheng, Chow, Dalfovo, Davis, Eiermann, Engels, Fedichev, Feshbach, Fibich, Golam Ali, Golam Ali Sekh, Inouye, Kartashov, Kartashov, Khaykovich, Kolokolov, Leggett, Louis, Middlekamp, Morsch, Myatt, Nicolin, Nicolin, Nicolin, Ostrovskaya, Pal, Pérez-García, Pérez-García, Rodas-Verde, Rodrigues, Sakaguchi, Sakaguchi, Sakaguchi, Salasnich, Sekh, Sivan, Staliunas, Strecker, Theis, Theocharis, Torres, Vakhitov, Vidanović, Yuan, Zakharov   +71 more
core   +1 more source

Deep Ritz - Finite element methods: Neural network methods trained with finite elements

Computer Methods in Applied Mechanics and Engineering
While much attention of neural network methods is devoted to high-dimensional PDE problems, in this work we consider methods designed to work for elliptic problems on domains $Ω\subset \mathbb{R} ^d, $ $d=1,2,3$ in association with more standard finite elements. We suggest to connect finite elements and neural network approximations through training, i.
Georgios Grekas, Charalambos G. Makridakis   +1 more
openaire   +3 more sources

Experimental Modal Analysis‐Driven Gaussian Process Regression Modeling of Rectangular Steel Beams With Various Hole Geometries

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Understanding the dynamic behavior of structural components is crucial for optimizing performance and ensuring structural integrity. This study presents a new method that combines a systematic experimental investigation of four distinct hole geometries (circular, square, compact rectangular, and long rectangular) with varying hole counts, all ...
Amir Hossein Rabiee, Majid Rajaei, Mohammad Hossein Mahdavi Nasab, Parsa Shafiei   +3 more
wiley   +1 more source

Ulam method for the Chirikov standard map

, 2010
We introduce a generalized Ulam method and apply it to symplectic dynamical maps with a divided phase space. Our extensive numerical studies based on the Arnoldi method show that the Ulam approximant of the Perron-Frobenius operator on a chaotic ...
B. Chirikov, B.V. Chirikov, B.V. Chirikov, B.V. Chirikov, B.V. Chirikov, C. Schütte, C.F.F. Karney, D. L. Shepelyansky, D. Terhesiu, D.L. Shepelyansky, G. Cristadoro, G. Froyland, G. Froyland, G. Froyland, J. Ding, J. Meiss, J. Meiss, J.M. Greene, J.M. Greene, K. M. Frahm, L. Ermann, L. Ermann, M. Blank, R. Artuso, R.S. MacKay, R.S. MacKay, R.S. MacKay, S. Aubry, T.-Y. Li, Z. Kaufmann, Z. Kovács   +30 more
core   +4 more sources

Variable sequence of events during the past seven terminations in two deep-sea cores from the Southern Ocean [PDF]

, 2012
The relationships among internally consistent records of summer sea-surface temperature (SSST), winter sea ice (WSI), and diatomaceous stable isotopes were studied across seven terminations over the last 660 ka in sedimentary cores from ODP sites 1093 ...
Bianchi, C., Gersonde, Rainer, Kunz-Pirrung, Martina, Schneider Mor, A., Shemesh, A., Yam, R.   +5 more
core   +1 more source

Righting Past Wrongs Through Restorative Justice: Managerial Motivations for Collaboration

Nonprofit Management and Leadership, EarlyView.
ABSTRACT Nonprofits are crucial to state collaborations as their embedded nature in communities allows them to gain the trust necessary to facilitate change and enhance strengths. As nonprofits collaborate with the public sector to tackle systemic challenges, understanding managerial motivations for collaboration and implications for social change is ...
Kara L. Lawrence, Nina R. Y. Blau, Paige L. Moore   +2 more
wiley   +1 more source

Reaction Pathways Based on the Gradient of the Mean First-Passage Time

, 2002
Finding representative reaction pathways is necessary for understanding mechanisms of molecular processes, but is considered to be extremely challenging. We propose a new method to construct reaction paths based on mean first-passage times. This approach
Deyu Lu, Klaus Schulten, Melih K. Sener, Sanghyun Park, von Smoluchowski M.   +4 more
core   +1 more source

Higher-order multi-scale deep Ritz method for multi-scale problems of authentic composite materials

, 2023
The direct deep learning simulation for multi-scale problems remains a challenging issue. In this work, a novel higher-order multi-scale deep Ritz method (HOMS-DRM) is developed for thermal transfer equation of authentic composite materials with highly oscillatory and discontinuous coefficients. In this novel HOMS-DRM, higher-order multi-scale analysis
Linghu, Jiale, Dong, Hao, Cui, Junzhi, Nie, Yufeng   +3 more
openaire   +2 more sources

Incorporating soil biological and functional attributes to advance ecological restoration

PLANTS, PEOPLE, PLANET, EarlyView.
Earth is currently experiencing a mass extinction crisis, predominantly driven by anthropogenic activities, with land use change causing widespread loss and degradation of native ecosystems and indigenous species. There is an urgent need to halt this trend and restore degraded habitat to preserve biodiversity and protect threatened plants and animals ...
Uffe N. Nielsen, Dylan Bristol, Chongzhe Zhang, Paola Raupp   +3 more
wiley   +1 more source