Results 1 to 10 of about 28,195 (203)

Optimization and modeling of modified unslotted CSMA/CA for wireless sensor networks

open access: yesAlexandria Engineering Journal, 2020
IEEE 802.15.4 protocol is intended to accomplish the characteristics of low power and low rate Wireless Sensor Network. It employs carrier sense multiple access with collision avoidance (CSMA/CA) protocol to access the network using either unslotted or ...
Mahmoud Gamal   +3 more
doaj   +3 more sources

A double network composite hydrogel with enhanced transdermal delivery by ultrasound for endometrial injury repair and fertility recovery [PDF]

open access: yesBioactive Materials
Endometrial injury and resulting female infertility pose significant clinical challenges due to the notable shortcomings of traditional treatments. Herein, we proposed a double network composite hydrogel, CSMA-RC-Zn-PNS, which forms a physical barrier on
Xin Zhang   +12 more
doaj   +2 more sources

Comprehensive Assessment and Trading Mechanism of Carbon Sink in China’s Marine Aquaculture [PDF]

open access: yesBiology
This study develops species-specific assessment models for carbon sink in marine aquaculture (CSMA) using provincial data from China’s coastal regions (2004–2023).
Xuan Yu, Haonan Guo, Qi Chen
doaj   +2 more sources

Injectable photosensitive bone cement enhancing angiogenesis and osteogenic differentiation for the treatment of bone nonunion [PDF]

open access: yesAPL Bioengineering
Nonunion fractures present a significant clinical challenge because of their complex microenvironment, which includes poor vascularization, insufficient osteogenesis, infection, and separation of fracture ends.
Mengnan Wen   +9 more
doaj   +2 more sources

Dipole Orientation Engineering in Crosslinking Polymer Blends for High‐Temperature Energy Storage Applications [PDF]

open access: yesAdvanced Science
Polymer dielectrics that perform efficiently under harsh electrification conditions are critical elements of advanced electronic and power systems. However, developing polymer dielectrics capable of reliably withstanding harsh temperatures and electric ...
Zizhao Pan   +9 more
doaj   +2 more sources

he effects of NETosis on fibrinolysis in colon cancer patients

open access: yesБюллетень сибирской медицины, 2022
Aim. To investigate formation of neutrophil extracellular traps (NETs) and their impact on fibrinolysis in patients with colon cancer.Materials and methods. The study was performed in two groups.
A. A. Parshina   +4 more
doaj   +1 more source

The association between parameters of oral mucosal immunity and 25-hydroxyvitamin D in patients with rampant caries

open access: yesБюллетень сибирской медицины, 2022
Aim. To determine the saliva level of immunoregulatory proteins in patients with rampant caries and 25-hydroxyvitamin D (25(OH)D) deficiency and evaluate the association of their concentration with 25(OH)D plasma level.Materials and methods.
A. S. Putneva   +7 more
doaj   +1 more source

Rapidly in situ forming an injectable Chitosan/PEG hydrogel for intervertebral disc repair

open access: yesMaterials Today Bio, 2023
Intervertebral disc (IVD) degeneration occurred with the increasing age or accidents has puzzled peoples in daily life. To seal IVD defect by injectable hydrogels is a promising method for slowing down IVD degeneration.
Lin Huang   +7 more
doaj   +1 more source

Transportation of Aspergillus nidulans Class III and V Chitin Synthases to the Hyphal Tips Depends on Conventional Kinesin. [PDF]

open access: yesPLoS ONE, 2015
Cell wall formation and maintenance are crucial for hyphal morphogenesis. In many filamentous fungi, chitin is one of the main structural components of the cell wall. Aspergillus nidulans ChsB, a chitin synthase, and CsmA, a chitin synthase with a myosin
Norio Takeshita   +7 more
doaj   +1 more source

Comparing Delay-Constrained ALOHA and CSMA: A Learning-Based Low-Complexity Approximate Approach

open access: yesIEEE Open Journal of the Communications Society, 2021
Supporting delay-constrained traffic becomes more and more critical in multimedia communication systems, tactile Internet, networked control systems, and cyber-physical systems, etc. In delay-constrained traffic, each packet has a hard deadline.
Lei Deng   +3 more
doaj   +1 more source

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