Compression Behavior of 3D Printed Composite Isogrid Structures.

Composite materials, particularly carbon fiber-reinforced polymers (CFRPs), have become a cornerstone in industries requiring high-performance materials due to their exceptional mechanical properties, such as high strength-to-weight ratios, and their inherent lightweight nature. These attributes make CFRPs highly desirable in aerospace, automotive, and other advanced engineering applications. However, the compressive behavior of CFRP structures remains a challenge, primarily due to the material sensitivity to structural instability, leading to matrix cracking and premature failure under compressive loads.

Avoidable Hospitalizations in Frail Older Adults: The Role of Sociodemographic, Clinical, and Care-Related Factors.

Objectives: This study aims to investigate the relationship between frailty and avoidable hospitalization risk, and the moderating role of sociodemographic, clinical, and care-related factors.

Design: Longitudinal population-based cohort study.

Setting And Participants: A total of 3168 community-dwelling individuals, aged ≥60 years, from the Swedish National study on Aging and Care in Kungsholmen (SNAC-K).

Bifunctional octadentate pseudopeptides as Zirconium-89 chelators for immuno-PET applications.

Background: Positron emission tomography (PET) is a highly sensitive method that provides fine resolution images, useful in the field of clinical diagnostics. In this context, Zirconium-89 (Zr)-based imaging agents have represented a great challenge in molecular imaging with immuno-PET, which employs antibodies (mAbs) as biological vectors. Indeed, immuno-PET requires radionuclides that can be attached to the mAb to provide stable in vivo conjugates, and for this purpose, the radioactive element should have a decay half-life compatible with the time needed for the biodistribution of the immunoglobulin.