Results 91 to 100 of about 572 (217)

Differences in associations between attention‐deficit hyperactivity disorder symptoms and physical activity across childhood and adolescence and among males and females in a representative UK birth cohort

JCPP Advances, EarlyView.
Abstract Background Children and adolescents with attention‐deficit hyperactivity disorder (ADHD) exhibit higher physical activity (PA) levels than peers without ADHD. It remains unclear how this association evolves across developmental stages and differs between sexes.
Amandine Sénéquier, Stamatina Iliodromiti, Jessica Agnew‐Blais   +2 more
wiley   +1 more source

An Analysis of the Tvergaard Parameters at Low Initial Stress Triaxiality for S235JR Steel

Polish Maritime Research, 2015
This paper discusses the influence of the Tvergaard parameters, qi, which are basic constants of the Gurson-Tvergaard-Needleman (GTN) material model, on the numerically simulated load-carrying capacity of tensile elements made of S235JR steel.
G. Kossakowski Paweł
doaj   +1 more source

Additional lateral meniscus centralization reduces residual anterolateral rotatory instability after anterior cruciate ligament reconstruction and lateral meniscus repair

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose This study aimed to examine the effects of lateral meniscus (LM) centralization on anterolateral rotational stability in patients with anterior cruciate ligament (ACL) and LM injuries. The hypothesis was that performing LM repair and centralization on knees with LM lesions would control anterolateral rotatory instability (ALRI ...
Ryota Seki, Tomomasa Nakamura, Nobutake Ozeki, Yusuke Nakagawa, Mai Katakura, Takashi Hoshino, Masaki Amemiya, Aritoshi Yoshihara, Hideyuki Koga   +8 more
wiley   +1 more source

Numerical simulation for studying constraint effect on ductile fracture initiation using complete Gurson model [PDF]

FME Transactions, 2010
Ductile fracture initiation in high-strength low alloyed welded steel joints is predicted using micromechanical complete Gurson model (CGM). The crack tip constraint and variation of stress triaxiality in ligament are considered on single-edge notch bend
Junis Bašir, Rakin Marko, Međo Bojan, Sedmak Aleksandar   +3 more
doaj  

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

Movement 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, Ann‐Kathrin Schalkamp, Katarina Mary Gunter, Anja Ophey, Sinah Röttgen, Jamil Razzaque, Konstantin Kufer, Cynthia Sandor, Gereon R. Fink, Elke Kalbe, Walter Maetzler, Clint Hansen, Stephan M. Jonas, Michele T. Hu, Lara Marie Reimer, Michael Sommerauer   +15 more
wiley   +1 more source

ISMGEO Large Triaxial Apparatus

, 2018
The design of earth and rockfill dams is focused on ensuring the stability of the structure under a set of combined mechanical and hydraulic conditions that may occur both during construction and operative life of the dam. The prediction of the hydro-mechanical behavior of construction materials (which range from clayey soils to rockfill) is therefore ...
Airoldi S., Bretschnaider A., Fioravante V., Giretti D.   +3 more
openaire   +2 more sources

Kinematic Features of Voluntary and Involuntary Head Movements in Cervical Dystonia

Movement 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, Davide Martino, Larissa R. Heideman, Martijn Beudel, Mark J. Edwards, Anna Sadnicka, Francesca Morgante   +6 more
wiley   +1 more source

STUDY ON NECKING AND FRACTURE OF DUCTILE MATERIALS BASED ON STRESS TRIAXIALITY

Jixie qiangdu, 2015
Stress triaxiality is a key factor in controlling the fracture of materials. Based on new method of finite element aided testing（ FAT）,the full-range constitutive relationship of ductile materials could be obtained. Thus,the distribution and evolution of
QI Shuang, CAI LiXun, BAO Chen, YAO Di
doaj  

Developing a fracture locus for predicting ductile fracture in stainless steel 316L additively manufactured using laser powder bed fusion

Additive Manufacturing Letters
The ductile fracture behavior of additively manufactured hot-isostatically pressed stainless steel 316 L was investigated using a combined experimental, numerical, and data-driven modeling approach.
Surajit Dey, Subramaniam Rajan, Ravi Kiran   +2 more
doaj   +1 more source

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

Magnetic 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, Filip Szczepankiewicz   +1 more
wiley   +1 more source