Results 41 to 50 of about 44,013 (215)

CONSTANTA DIVING CENTRE’S CONTRIBUTION TO PREVENT AND COMBAT TERRORISM IN UNDERWATER CRITICAL INFRASTRUCTURE [PDF]

Annals: Series on engineering sciences (Academy of Romanian Scientists), 2012
The National Strategy on Preventing and Combating Terrorism, The Strategy of Romanian National Security, and the Concept for combat training of the Romanian professional divers, in conjunction with divers at any level (national, international, regional),
Simona RUS, Mihai DIACONU, Mircea DEGERATU   +2 more
doaj  

The Circulatory Effects of Increased Hydrostatic Pressure Due to Immersion and Submersion

Frontiers in Physiology, 2021
Increased hydrostatic pressure as experienced during immersion and submersion has effects on the circulation. The main effect is counteracting of gravity by buoyancy, which results in reduced extravasation of fluid.
Robert P. Weenink, Robert P. Weenink, Thijs T. Wingelaar, Thijs T. Wingelaar   +3 more
doaj   +1 more source

A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine

Advanced Robotics Research, EarlyView.
This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff, Simon Holzer, Stefania Konstantinidi, Yoan Civet, Yves Perriard   +4 more
wiley   +1 more source

Hyperbaric oxygen preconditioning alleviates spinal cord injury by inhibiting pro-inflammatory astrocyte polarization in a rat model of decompression sickness

Frontiers in Immunology
Decompression sickness (DCS) spinal cord injury (SCI) is a pivotal concern in diving activities, and prevention is the key. Our previous study found that hyperbaric oxygen (HBO) preconditioning reduced neurological deficit in DCS SCI rats, but the ...
Jiahe Zhou, Caiyi Xu, Chenle Gu, Quan Zhou, Huan Wang, Haitao Su, Mengru Zhou, Qi Zhu, Guoyang Huang, Weigang Xu   +9 more
doaj   +1 more source

WorMa: An Undulatory Robot With Center of Mass Regulation via Internal Fluid Redistribution for Amphibious Locomotion

Advanced Robotics Research, EarlyView.
WorMa is an amphibious undulatory robot that uses Center of Mass redistribution as the sole terrain adaptation mechanism. This mechanism is based on internal fluid mass redistribution through a pump‐driven latex balloon system that creates three profiles: head‐biased, balanced, and tail‐biased.
Daniil Filimonov, Nana Obayashi
wiley   +1 more source

Case report: tracheobronchial diverticulum, a potential risk for diving?

Frontiers in Medicine
Tracheobronchial diverticulum (TBD) is an asymptomatic, benign cystic lesion outside the lumen of the trachea and bronchus. This is the first report case of a SCUBA (self contained underwater breathing apparatus) diver diagnosed with TBD, which is a ...
Long Qing, Yan Wang, Meng Zhang, Qinqin Pu, Wanwan Cai, Yaping Pan, Delin Xia   +6 more
doaj   +1 more source

Multi‐Omics Profiling of High‐Grade Serous Ovarian Cancer Reveals an Inflammation‐Related Lipid Metabolism Subtype Associated With Platinum Resistance

Advanced Science, EarlyView.
Through integrated proteomic and metabolomic profiling, Zhao et al. identified three molecular subtypes of high‐grade serous ovarian cancer. The high‐risk subtype exhibits activated arachidonic acid metabolism and cyclooxygenase‐2 overexpression. This metabolic axis promotes M2‐like macrophage infiltration, which contributes to platinum resistance ...
Yuxi Zhao, Junyi Li, Bo Zheng, Wanshan Liu, Yaru Wang, Shufeng Wang, Ying Cui, Huiqin Guo, Hongxia Wang, Ting Xiao, Kun Qian, Jing Zuo   +11 more
wiley   +1 more source

Dual Lineages of Langerhans Cells Cooperate to Restore the Immune Barrier after Skin Injury

Advanced Science, EarlyView.
After skin injury, the epidermal immune barrier is rebuilt by two sources of Langerhans cells. Resident Langerhans cells first move into the wound during re‐epithelialization, guided by CXCR2 signaling. Later, recruited monocytes become long‐lived Langerhans cells.
Axel D. Schmitter‐Sánchez, Nicholas Basista, Sudhanshu Mishra, Hyeri Kim, Audrey Bench, Catherine Matte‐Martone, Min‐Soo Seo, Gun Woo Lee, Sangbum Park   +8 more
wiley   +1 more source

Oxygen Toxicity and Special Operations Forces Diving: Hidden and Dangerous

Frontiers in Psychology, 2017
In Special Operations Forces (SOF) closed-circuit rebreathers with 100% oxygen are commonly utilized for covert diving operations. Exposure to high partial pressures of oxygen (PO2) could cause damage to the central nervous system (CNS) and pulmonary ...
Thijs T. Wingelaar, Thijs T. Wingelaar, Pieter-Jan A. M. van Ooij, Rob A. van Hulst   +3 more
doaj   +1 more source

A systematic review of electroencephalography in acute cerebral hypoxia: clinical and diving implications

Introduction: Hypoxia can cause central nervous system dysfunction and injury. Hypoxia is a particular risk during rebreather diving. Given its subtle symptom profile and its catastrophic consequences there is a need for reliable hypoxia monitoring ...
Wong, Nicole YE, van Waart, Hanna, Vrijdag, Xavier Ce, Mitchell, Simon J, Sleigh, Jamie W   +4 more
core   +1 more source