Results 71 to 80 of about 6,279 (248)

Study on the Permanent Deformation and Dynamic Stress–Strain of Coarse-Grained Subgrade Filler under Cyclic Loading

open access: yesBuildings
Using coal gangue as a subgrade filler will produce good benefits, and its application prospects are very broad. It is of great engineering and scientific value to study the improvement method and dynamic characteristics of coal gangue subgrade filler ...
Hemeng Zhang   +3 more
doaj   +1 more source

Recent Advances in Luminescent Hydrogen‐Bonded Organic Frameworks (HOFs): Linker Design, Phosphorescence, and Smart Responsiveness

open access: yesInformation &Functional Materials, EarlyView.
Luminescent Hydrogen‐bonded organic frameworks (HOFs) provide an innovative platform for sensing and optoelectronic applications. This review outlines design principles, recent advances in synthesis and optical tuning, diverse sensing applications, and discusses current challenges and future directions for HOFs.
Heng Wu   +4 more
wiley   +1 more source

Toward an idiographic understanding of the role of sleep‐mood dynamics in adolescents' internalizing symptoms

open access: yesJCPP Advances, EarlyView.
Abstract Background Adolescence is marked by increased vulnerability to sleep disturbances and mood disorders. Understanding how day‐to‐day changes in sleep and mood are linked within the same individual is crucial for clarifying sleep's role in emerging internalizing disorders. However, the extent to which an adolescent's fluctuations in sleep predict
Konstantin Drexl   +4 more
wiley   +1 more source

Association between ADHD symptoms and device‐measured physical activity and sedentary behavior in childhood: A population‐based twin study

open access: yesJCPP Advances, EarlyView.
Abstract Background Attention‐deficit/hyperactivity disorder (ADHD) symptoms are associated with adverse health outcomes; this may be partially due to unhealthy lifestyle factors such as low physical activity (PA) and high sedentary behavior (SED). However, this association remains unclear.
Narda Ontiveros   +5 more
wiley   +1 more source

Shear behavior of coarse aggregates for dam construction under varied stress paths

open access: yesWater Science and Engineering, 2008
Coarse aggregates are the major infrastructure materials of concrete-faced rock-fill dams and are consolidated to bear upper and lateral loads. With the increase of dam height, high confining pressure and complex stress states complicate the shear ...
Liu Hanlong, Deng An, Shen Yang
doaj   +1 more source

Wearable Movement‐Tracking for Prodromal Parkinson's Disease Detection: A Cross‐Country Validation Study

open access: yesMovement Disorders, EarlyView.
Abstract Background Models trained on accelerometer data have been proposed for detecting prodromal Parkinson's disease (PD). However, uncertainties in diagnosis timing in the UK Biobank (UKBB) may affect generalizability to other cohorts. Objectives The aim of the study was to evaluate the performance of previously published models for prodromal PD ...
Fabian Kahl   +15 more
wiley   +1 more source

Weathering Process of In Situ Granite and Particle Breakage Characteristics of Compacted Weathered Granite

open access: yesApplied Sciences, 2018
Quantificationally describing weathering process and characterizing particle breakage are important in predicting the behavior of coarse-grained soil (e.g., weathered granite). In order to comprehensively understand the mechanical properties of weathered
Xirong Niu   +3 more
doaj   +1 more source

Kinematic Features of Voluntary and Involuntary Head Movements in Cervical Dystonia

open access: yesMovement Disorders, EarlyView.
Abstract Background Cervical dystonia (CD) has a varied motor presentation, combining abnormal postures with complex involuntary head movements. Classification of these motor patterns remains imprecise, relying on descriptive terminology without robust definitions. Objectives To provide a kinematically‐grounded description of the motor phenomenology of
Thomas Hart   +6 more
wiley   +1 more source

Performance of a triaxial geogrid-reinforced crushed rock base underlain by a soft clay subgrade

open access: yesCase Studies in Construction Materials
This large-scale test investigated the behavior of a pavement structure composed of a crushed rock base underlain by a soft clay subgrade reinforced with a triaxial geogrid under static loading.
Hatairat Poorahong   +4 more
doaj   +1 more source

Beyond Directions: Symmetry‐Aware Rotation Sets for Triaxial Diffusion Encoding by Geometric Filter Optimization

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To improve the accuracy of diffusion‐weighted powder average signals for diffusion encoding with arbitrary b‐tensors. Methods We identify an intrinsic dihedral (D2$$ {D}_2 $$) symmetry of diffusion signals for arbitrary diffusion encoding, which defines their natural signal space (a quotient of 3D rotations).
Sune Nørhøj Jespersen   +1 more
wiley   +1 more source

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