Results 11 to 20 of about 760,200 (265)

Changes in the Spatial Structure of Synchronization Connections in EEG During Nocturnal Sleep Apnea [PDF]

Clocks & Sleep
This study involved 72 volunteers divided into two groups according to the apnea–hypopnea index (AHI): AHI>15 episodes per hour (ep/h) (main group, n=39, including 28 men, median AHI 44.15, median age 47), 0≤AHI≤15ep/h (control group, n=33, including 12 ...
Maxim Zhuravlev, Anton Kiselev, Anna Orlova, Evgeniy Egorov, Oxana Drapkina, Margarita Simonyan, Evgenia Drozhdeva, Thomas Penzel, Anastasiya Runnova   +8 more
doaj   +2 more sources

Meta-Analysis of Scientific Studies About Port-Hinterland Relations [PDF]

جغرافیا و آمایش شهری منطقه‌ای, 2023
Regional transportation, especially between port-hinterland, plays an important role in the economic prosperity of the country and the efficiency of the supply chain of commudities.
Melika Zarei, Mojtaba Arasteh, Khalil Hajipour   +2 more
doaj   +1 more source

Exp-function Method and Reduction Transformations for Rogue ‎Wave Solutions of the Davey-Stewartson Equations‎ [PDF]

Journal of Applied and Computational Mechanics, 2021
A pair of rogue wave solutions of the Davey-Stewartson (DS) equations are obtained by using the exp-function method and reduction transformations. Firstly, the Davey-Stewartson equations are transformed into two easy-to-solve equations, one of which is ...
Sheng Zhang, Yue Zhang, Bo Xu
doaj   +1 more source

Stability of shallow shells with local changes in strength characteristics

Structural Mechanics of Engineering Constructions and Buildings, 2022
The authors deal with the structures of buildings in the form of shallow shells with some damage. The derivation of equations is given taking into account the geometric nonlinearity of the work of a thin-walled structure.
Alexander G. Kolesnikov, Antonina V. Osadchaya   +1 more
doaj   +1 more source

MODELING THE DYNAMICS OF FOREST ECOSYSTEMS TAKING INTO ACCOUNT THEIR STRUCTURAL HETEROGENEITY AT DIFFERENT FUNCTIONAL AND SPATIAL LEVELS [PDF]

Вопросы лесной науки, 2022
In many problems of modern forest ecology, it is necessary to analyze the conjugated dynamics of processes occurring at different spatio-temporal scales of the functioning of plant communities and soils resulted from their interaction under the influence
V. N. Shanin, P. V. Frolov, I. V. Priputina, O. G. Chertov, S. S. Bykhovets, E. V. Zubkova, A. M. Portnov, G. G. Frolova, M. N. Stamenov, P. Y. Grabarnik   +9 more
doaj   +1 more source

Evolution and Ecological Implications of Land Development and Conservation Patterns on the Qinghai-Tibet Plateau

Land, 2022
The Qinghai-Tibet Plateau serves as an important ecological security shelter in China and across Asia. During the past two decades, the patterns of land development and conservation on the Qinghai-Tibet Plateau have undergone significant changes under ...
Yafei Wang, Jinfeng Liao, Yao He, Peipei Chen   +3 more
doaj   +1 more source

The structure of spatial localization [PDF]

Philosophical Studies, 1996
Material objects, such as tables and chairs, have an intimate relationship with space. They have to be somewhere. They must possess an address at which they are found. Under this aspect, they are in good company. Events, too, such as Caesar’s death and John’s buttering of the toast, and more elusive entities, such as the surface of the table, have an ...
Casati, Roberto, Varzi, Achille
openaire   +3 more sources

Terrain Gradient Effect and Spatial Structure Characteristics of Land Use in Dashanbao Area

Shuitu baochi tongbao, 2022
[Objective] The influence of topographical factors on land use pattern and spatial structure characteristics was explored in order to provide a scientific reference basis for the planning and decision-making of land development and utilization in ...
Zhang Li, Wang Ping, Duan Xiao, Zhao Zijiao   +3 more
doaj   +1 more source

Spatially Structured Environmental Analysis of Marine Ecological Landscapes Based on Machine Vision

Journal of Marine Science and Engineering, 2023
In this study, based on the current development status of Zhanjiang’s marine economy and ecological landscape environmental spatial structure in China, an appropriate coordination measurement model tailored to Zhanjiang’s marine economy and the ...
Longlong Zhang, Jingwen Yuan, Chulsoo Kim   +2 more
doaj   +1 more source

Analysis and Evaluation of the Spatial Structure of Cittaslow Towns on the Example of Selected Regions in Central Italy and North-Eastern Poland

Land, 2021
Cittaslow International promotes harmonious development of small towns based on sustainable relationships between economic growth, protection of local traditions, cultural heritage and the environment, and an improvement in the quality of local life. The
Marek Zagroba, Katarzyna Pawlewicz, Adam Senetra   +2 more
doaj   +1 more source