Results 221 to 230 of about 1,156,717 (317)

Secrets within stems: The cryptic Apodanthes caseariae (Apodanthaceae), a rare neotropical holoendoparasite

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Holoendoparasites are extremely rare plants that live entirely hidden inside their hosts, with only flowers and fruits visible. We studied Apodanthes caseariae, found in central and South America, parasitizing Casearia sylvestris. Little is known about its life cycle.
Jessica A. Ramírez‐Ramírez   +4 more
wiley   +1 more source

Dynamic Event‐Triggered Robust Model Predictive Control for Quadrotor Trajectory Tracking

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper addresses the trajectory tracking problem for a full‐state quadrotor subject to physical model constraints and unknown external disturbances. A robust tube‐based model predictive control (MPC) approach is successfully applied to the system, which is subject to bounded disturbances and hard constraints.
Ali Can Erüst   +2 more
wiley   +1 more source

Combining Coronal and Axial DWI for Accurate Diagnosis of Brainstem Ischemic Strokes: Volume-Based Correlation with Stroke Severity. [PDF]

open access: yesBrain Sci
Alhaj Omar O   +12 more
europepmc   +1 more source

Combination of 3D Micro Contact Printing and Scraping Technique for Site Selective Cocultivation Across a Porous Micro Structured Scaffold

open access: yesSmall, EarlyView.
The study by Brauer et al. presents an operationally simple scraping technique in combination with 3D‐µCP to generate 3D cell patterns on both, front and the reverse side of a micro thermoformed substrate. It can be used to study cell‐to‐cell crosstalk at the microlevel with topographies similar to real tissue. Abstract 3D‐microcontact printing (3D‐µCP)
Dana Brauer   +9 more
wiley   +1 more source

Heart‐On‐a‐Chip with Integrated Ultrasoft Mechanosensors for Continuous Measurement of Cell‐ and Tissue‐Scale Contractile Stresses

open access: yesSmall, EarlyView.
We present a heart‐on‐a‐chip platform embedded with ultrasoft mechanosensors for real‐time, multi‐scale stress mapping in engineered cardiac tissues. The system enables simultaneous quantification of local cell‐generated stresses and global tissue contractile forces.
Ali Mousavi   +10 more
wiley   +1 more source

Evidence for Drop‐Like Nuclear Deformation in Sheared Endothelial Monolayers

open access: yesSmall, EarlyView.
Physiological shear stress smoothens endothelial monolayers by selectively eliminating less‐spread cells with tall, wrinkled nuclei. Nuclear volume and surface area remain constant, consistent with drop‐like deformation governed by geometric constraints.
Mohammad Mohajeri   +7 more
wiley   +1 more source

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