Results 131 to 140 of about 20,555,921 (315)

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

open access: yesAdvanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen   +16 more
wiley   +1 more source

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

open access: yesAdvanced Functional Materials, EarlyView.
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash   +4 more
wiley   +1 more source

National Security Strategy of the Republic of Poland, 2003

open access: yes, 2003
"Ongoing changes in the international security environment are reflected in this document that introduces a reassessment and adjustment of Poland’s national security strategy.
Ministry of National Defence of Poland
core  

Thermoresponsive Soft and Self‐Anchoring Cuff Electrode for Chronic Peripheral Interfaces

open access: yesAdvanced Functional Materials, EarlyView.
A novel thermoresponsive, soft and self‐anchoring (TSSA) cuff electrode utilizing shape memory polymers achieves autonomous, sutureless peripheral nerve fixation. Driven by thermally induced pre‐strain and tissue adhesion, the device self‐closes and softens at body temperature, successfully minimizing mechanical mismatch. This adaptive platform ensures
Seungjun Lee   +4 more
wiley   +1 more source

DEVELOPING A NATIONAL SECURITY STRATEGY BASED ON THE PRINCIPLES OF NATIONAL RESILIENCE

open access: yesСтратегічна панорама, 2019
The article explores the methodological principles of the national security strategy development and the ways of their improvement in order to more effectively respond to modern challenges, threats and changes in the security environment.
O. Reznikova
doaj  

Administrative-Law Status of National Security Agencies

open access: yesRevista Jurídica Portucalense
The article analyses the administrative-law approaches that regulate the activities of national security agencies with an emphasis on their ability to adapt to new challenges.
Inna PIDBEREZNYKH   +4 more
doaj   +1 more source

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