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Lost opportunities: How gendered arrangements harm men.
Proc Natl Acad Sci U S A
February 2025
Department of Psychology, Princeton University, Princeton, NJ 08540.
Traditional gendered arrangements-norms, roles, prejudices, and hierarchies-shape every human life. Associated harms are primarily framed as women's issues due to more severe consequences women face. Yet, gendered arrangements also shape 's relationships, career paths, and health.
View Article and Find Full Text PDFSome Challenges of Diffused Interfaces in Implicit-Solvent Models.
J Comput Chem
January 2025
Department of Mechanical Engineering, Universidad Técnica Federico Santa María, Valparaíso, Chile.
The standard Poisson-Boltzmann (PB) model for molecular electrostatics assumes a sharp variation of the permittivity and salt concentration along the solute-solvent interface. The discontinuous field parameters are not only difficult numerically, but also are not a realistic physical picture, as it forces the dielectric constant and ionic strength of bulk in the near-solute region. An alternative to alleviate some of these issues is to represent the molecular surface as a diffuse interface, however, this also presents challenges.
View Article and Find Full Text PDFDesign and Validation of a Biomimetic Leg-Claw Mechanism Capable of Perching and Grasping for Multirotor Drones.
Biomimetics (Basel)
December 2024
School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China.
Multirotor drones are widely used in fields such as environmental monitoring, agricultural inspection, and package delivery, but they still face numerous challenges in durability and aerial operation capabilities. To address these issues, this paper presents a biomimetic leg-claw mechanism (LCM) inspired by the biomechanics of birds. The claw of the LCM adopts a bistable gripper design that can rapidly close through external impact or actively close via the coordination of internal mechanisms.
View Article and Find Full Text PDFImage Encryption Method Based on Three-Dimensional Chaotic Systems and V-Shaped Scrambling.
Entropy (Basel)
January 2025
School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China.
With the increasing importance of securing images during network transmission, this paper introduces a novel image encryption algorithm that integrates a 3D chaotic system with V-shaped scrambling techniques. The proposed method begins by constructing a unique 3D chaotic system to generate chaotic sequences for encryption. These sequences determine a random starting point for V-shaped scrambling, which facilitates the transformation of image pixels into quaternary numbers.
View Article and Find Full Text PDFExploring biomass derived microcrystalline cellulose from the waste aquatic plant Pistia stratiotes: A comprehensive characterization for polymer composite reinforcement.
Int J Biol Macromol
January 2025
School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea. Electronic address:
The creation of polymer composites with better performance is a crucial thing. The cellulosic filler material gain popularity in polymer composites. In this study, aquatic plant Pistia stratiote leaves were used as a raw material for cellulose extraction.
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