Results 81 to 90 of about 2,814,147 (345)

PRM-RL: Long-range Robotic Navigation Tasks by Combining Reinforcement Learning and Sampling-based Planning

, 2018
We present PRM-RL, a hierarchical method for long-range navigation task completion that combines sampling based path planning with reinforcement learning (RL).
Davidson, James, Faust, Aleksandra, Fiser, Marek, Francis, Anthony, Oslund, Kenneth, Ramirez, Oscar, Tapia, Lydia   +6 more
core   +1 more source

Resource Allocation Frameworks for Network-coded Layered Multimedia Multicast Services [PDF]

, 2014
The explosive growth of content-on-the-move, such as video streaming to mobile devices, has propelled research on multimedia broadcast and multicast schemes.
Chatzigeorgiou, Ioannis, Tassi, Andrea, Vukobratović, Dejan   +2 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Comparison of various urban distribution systems supporting e-commerce. Point-to-point vs collection-point-based deliveries

Transportation Research Procedia, 2018
E-commerce is a sector in continual growth in all countries and, in particular, the increase in B2C (Business to Consumer) e-commerce market has important effects on last-mile deliveries in city areas. The delivery of a parcel to a consumer's address involves not only high costs for both couriers (extended car routes) and consumers (high prices) and ...
Carotenuto, Pasquale, Gastaldi, Massimiliano, Giordani, Stefano, Rossi, Riccardo, Rabachin, Alberto, Salvatore, Alessio   +5 more
openaire   +4 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Point biserial correlation symbiotic organism search nanoengineering based drug delivery for tumor diagnosis

Scientific Reports
Nanoparticulate systems have the prospect of accounting for a new making of drug delivery systems. Nanotechnology is manifested to traverse the hurdle of both physical and biological sciences by implementing nanostructures indistinct fields of science ...
Garima Shukla, Sofia Singh, Chetan Dhule, Rahul Agrawal, Shipra Saraswat, Amal Al-Rasheed, Mohammed S. Alqahtani, Ben Othman Soufiene   +7 more
doaj   +1 more source

A Leader-Follower Control System for a Package-Delivery Drone

IEEE Access
This paper proposes a feasible strategy to design a control system to guide drones in delivering packages autonomously. It is shown that the leader-follower control paradigm fulfills all the requirements for the delivery mission, thus being a good ...
Emanuele Dos Santos Cardoso, Vinicius Pacheco Bacheti, Mario Sarcinelli-Filho   +2 more
doaj   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Relationship between fetal heart rate patterns and a time course for evaluation of fetal well-being: “the 30 minutes rule” for decision of mechanical delivery

Taiwanese Journal of Obstetrics & Gynecology, 2017
Objective: To predict acidosis in fetus showing deceleration associated with non-reassuring fetal status during delivery, we examined the relationship between duration of the deceleration and umbilical arterial pH.
Shintaro Makino, Chihiro Hirai, Jun Takeda, Atsuo Itakura, Satoru Takeda   +4 more
doaj   +1 more source