Results 21 to 30 of about 127,641 (218)

Plastron respiration using commercial fabrics [PDF]

open access: yes, 2014
A variety of insect and arachnid species are able to remain submerged in water indefinitely using plastron respiration. A plastron is a surface-retained film of air produced by surface morphology that acts as an oxygen-carbon dioxide exchange surface ...
Cassie   +24 more
core   +2 more sources

Deep Q-Learning Based Adaptive MAC Protocol with Collision Avoidance and Efficient Power Control for UWSNs

open access: yesJournal of Marine Science and Engineering
Underwater wireless sensor networks (UWSNs) widely used for maritime object detection or for monitoring of oceanic parameters that plays vital role prediction of tsunami to life-cycle of marine species by deploying sensor nodes at random locations ...
Wazir Ur Rahman   +6 more
doaj   +1 more source

Underwater Fish Detection with Weak Multi-Domain Supervision

open access: yes, 2019
Given a sufficiently large training dataset, it is relatively easy to train a modern convolution neural network (CNN) as a required image classifier. However, for the task of fish classification and/or fish detection, if a CNN was trained to detect or ...
Bradley, Michael   +5 more
core   +1 more source

Should Homeless Youth Participate in Research?

open access: yesVoices in Bioethics, 2018
From taking the L to the G to the J, one of the most striking things about the vastly different people riding the New York City Subway with you is the astoundingly large population of youth who are performing on the train for money.
Charlene Sathi
doaj   +1 more source

Long‐term culture of skin biopsies: maintenance of fibroblast production and competency of reprogramming

open access: yesFEBS Open Bio, EarlyView.
Skin biopsies taken from a patient with an ultra‐rare disorder as well as controls were cultured for up to 473 days. The chunks of skin were serially transferred to a new culture plate when confluent with fibroblasts. Different generations of fibroblasts were analyzed for cell and molecular properties, proliferation, and competence for reprogramming to
Sudiksha Rathan‐Kumar   +3 more
wiley   +1 more source

Mapping of K-12 science and mathematics curriculum against sustainable development goals and addressing sustainability gap

open access: yesCogent Education
This paper uncovers the sustainability content in the science and mathematics curriculum of Qatar’s K-12 public school system. It focuses on mapping the curriculum standards of both subjects against sustainable development goals (SDGs) and identifying ...
Ziad Said   +4 more
doaj   +1 more source

Power Control Optimization of an Underwater Piezoelectric Energy Harvester [PDF]

open access: yes, 2018
Over the past few years, it has been established that vibration energy harvesters with intentionally designed components can be used for frequency bandwidth enhancement under excitation for sufficiently high vibration amplitudes.
Aramendia Iradi, Iñigo   +4 more
core   +3 more sources

Tumor‐stromal crosstalk and macrophage enrichment are associated with chemotherapy response in bladder cancer

open access: yesFEBS Open Bio, EarlyView.
Chemoresistance in bladder cancer: Macrophage recruitment associated with CXCL1, CXCL5 and CXCL8 expression is characteristic of Gemcitabine/Cisplatin (Gem/Cis) Non‐Responder tumors (right side) while Responder tumors did not show substantial tumor‐stromal crosstalk (left side). All biological icons are attributed to Bioicons: carcinoma, cancerous‐cell‐
Sophie Leypold   +11 more
wiley   +1 more source

Hydraulic Abrasion-Resistant Elastic Epoxy Resin Materials

open access: yesAdvances in Materials Science and Engineering, 2019
The abrasion of hydraulic concrete structures caused by the washing action of flowing water is a common problem and cannot be solved by simply increasing the strength of the concrete.
Liqun Xu, Kai Zhang, Yanhui Liu
doaj   +1 more source

Spectral signatures of photosynthesis II: coevolution with other stars and the atmosphere on extrasolar worlds

open access: yes, 2007
As photosynthesis on Earth produces the primary signatures of life that can be detected astronomically at the global scale, a strong focus of the search for extrasolar life will be photosynthesis, particularly photosynthesis that has evolved with a ...
Antígona Segura   +12 more
core   +2 more sources

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