Results 221 to 230 of about 11,349 (316)

Toward Chromoselective Transformations in Biological Systems: Perspectives and Challenges

Angewandte Chemie International Edition, EarlyView.
Controlling biological systems with small‐molecule chromophores has evolved into a powerful strategy and is applied from chemical biology to medicine. However, the complexity of in vivo systems cannot be matched by a single wavelength of light. Developing methods to combine and individually control multiple chromophores is crucial.
Nadja A. Simeth
wiley   +1 more source

Detecting and Evaluating Fatigue Damage Mechanisms in Concrete with Embedded Aggregate Sensors. [PDF]

Materials (Basel)
Song Z, Cheng S, He H, Li W, Liu Y.
europepmc   +1 more source

A New Paradigm for Understanding the Rheology and Processability of Poly(p‐Phenylene Terephthalamide) Liquid‐Crystalline Solutions

Journal of Applied Polymer Science, EarlyView.
Kevlar is traditionally modeled as a rigid‐rod polymer, yet rheological behavior deviates from this assumption. The review introduces a novel “twist‐tie” entanglement theory for aramid polymer chains in the nematic liquid crystal state, providing a molecular explanation for deviations from rigid‐rod models. Understanding twist‐tie entanglement dynamics
Emma Egli, Jacob L. Pretko, Christopher W. Seay, Steven R. Lustig   +3 more
wiley   +1 more source

Microscopic measurement of the local deformation field establishes the mechanistic origin of the fatigue threshold for soft brittle materials.

Soft Matter
Altuntas U, Li C, Kolinski JM.
europepmc   +1 more source

Fracture and Fatigue Assessment of Bonded Composite Patch Repairs in Notched and Cracked Plates. [PDF]

Polymers (Basel)
Beylergil B, Ulus H, Çetin ME, Kaybal HB, Yildirim S, Al-Nadhari A, Yildiz M.   +6 more
europepmc   +1 more source

Differences in predominant collagen fiber orientation between dorsal and plantar trabecular bone tracts of adult mule deer calcanei suggest strain‐mode‐specific adaptation

The Anatomical Record, EarlyView.
Polarized microscopic images of the outer bone cortex (a and b) and deeper trabecular bone (c and d) of the deer calcaneus in thin cross‐sections. The brighter gray levels reflect more oblique‐to‐transverse collagen fibers in the compression/dorsal bone (a, c) and the darker gray levels reflect more longitudinal collagen in the tension/plantar bone (b,
John G. Skedros, John T. Cronin, Chad S. Mears, Brett W. Richards   +3 more
wiley   +1 more source

Crack propagation mechanism and life prediction of liner under thermal fatigue loads. [PDF]

Sci Rep
Wang X, Li W, Zheng M, Zeng Q, Li Y, Yang H, Wang C.   +6 more
europepmc   +1 more source

The 9+ month marathon: How pregnancy may have shaped human endurance capacities

The Anatomical Record, EarlyView.
Abstract Anthropology has long considered the evolution of our uniquely human endurance capacities to be the result of selection upon anatomical and physiological features imposed by the demands of thermoregulation and resource acquisition, particularly during the demands of persistence hunting. Research has focused on the anatomical changes present in
Cara Ocobock
wiley   +1 more source

Fatigue Life Evaluation and Structural Optimization of Rubber Damping Components in Metro Resilient Wheels. [PDF]

Polymers (Basel)
Zhang Q, Liu Z, Shu Y, Yang G, Deng W.
europepmc   +1 more source

Significant Deficits Are Seen in Extensor Muscle Performance but Not Flexor Muscle Performance 6 Months After Anterior Cruciate Ligament Reconstruction Using a Rectus Femoris Tendon Autograft

Arthroscopy, Sports Medicine, and Rehabilitation, EarlyView.
Purpose To evaluate bilateral isokinetic performance symmetry of knee extensors and flexors 6 months after anterior cruciate ligament reconstruction using a rectus femoris tendon autograft. Methods This retrospective case series included patients consecutively recruited at a single tertiary sports medicine center between January 2023 and July 2024 ...
Alef Cavalcanti Matias de Barros, Márcio Cabral Fagundes Rêgo, Karinna Sonálya Aires da Costa Oliveira, Marcelo Cabral Fagundes Rêgo, Carlos Eduardo da Silveira Franciozi, Diego Ariel de Lima, Camilo Partezani Helito, José Leonardo Rocha de Faria, Jamilson Simões Brasileiro   +8 more
wiley   +1 more source