Results 91 to 100 of about 1,335,118 (310)

Autonomous Hydrogel Actuators Programmed by Endogenous Biochemical Logic for Dual‐Stage Morphing and Drug Release

open access: yesAdvanced Materials, EarlyView.
A 3D‐printed BSA–PEGDA bilayer actuator performs biochemical logic, bending autonomously in acid and releasing its drug payload only when both acid and pepsin are present. This dual‐stage, enzyme‐gated mechanism enables autonomous catch‐and‐release motion and controlled gastric drug delivery, representing a programmable soft material powered by ...
Yuchen Liu   +3 more
wiley   +1 more source

Freeform Manufacturing of Plant‐Based Structural Colors for Scalable Photonic and Mechanochromic Devices

open access: yesAdvanced Materials, EarlyView.
A green, freeform manufacturing approach that utilizes robust aqueous two‐phase systems to create intricate and scalable photonic structures and non‐planar mechanochromic hydrogel actuators from plant‐based hydroxypropyl cellulose. This approach broadens the structural possibilities of sustainable photonic devices and mechanochromic systems, offering ...
Xiao Song   +14 more
wiley   +1 more source

The construct validity of the Arabic version of the Chedoke-Mcmaster attitudes towards children with handicaps scale

open access: yesCogent Education, 2020
This study aimed to examine the construct validity of the Arabic version of the Chedoke-McMaster Attitudes towards Children with Handicaps (CATCH) scale in elementary school students.
Ghaleb Hamad Alnahdi
doaj   +1 more source

Investment prospects in inland capture fisheries with special reference to small reservoirs: the exclusive fishing right licence model [PDF]

open access: yes, 1987
The paper discusses simple methods of estimating fish yield from small reservoirs and establishes 2 indices of fish yield based on: 1) the relationship between the catch per boat in artisanal commercial fish landings and the catch per unit effort in ...
Ita, E.O.
core  

Label‐Free Sensing of Coronaviral Sequences via Kretschmann‐Configuration Reflectance Spectroscopic Ellipsometry: Sensitivity, Specificity, and Interfacial Effects

open access: yesAdvanced Materials Interfaces, EarlyView.
Spectroscopic ellipsometry in the Kretschmann‐Raether configuration (KRSE) is employed to characterize a DNA‐functionalized platform for viral sequence recognition. By merging SE with surface plasmon resonance, KRSE outperforms conventional SE, achieving nanomolar targeting through resonance wavelength shifts (δλ) measurements. Its enhanced interfacial
Silvia Maria Cristina Rotondi   +4 more
wiley   +1 more source

Terahertz Volume Plasmon‐Polariton Modulation in All‐Dielectric Hyperbolic Metamaterials

open access: yesAdvanced Optical Materials, EarlyView.
THz volume plasmon‐polariton (VPP) propagation through plasmon‐based hyperbolic metamaterials, made of alternating layers of doped and undoped III‐V semiconductors. Abstract The development of plasmonics and related applications in the terahertz range faces limitations due to the intrinsic high electron density of the standard metals.
Stefano Campanaro   +3 more
wiley   +1 more source

Assessment of species composition and CPUE (catch per unit effort) of commercial fish caught with bottom gillnet in Jask coastal waters [PDF]

open access: yesبوم‌شناسی آبزیان, 2018
Tiger– toothed croaker (Otolithes ruber) is considered as a commercially important target species for fishermen in south of Iran, due to its high economic value and marketability.
Mohammad Saberi   +3 more
doaj  

Inverse‐Designed on‐Chip Terahertz Three‐Channel Mode and Wavelength Division Demultiplexer

open access: yesAdvanced Photonics Research, EarlyView.
An ultracompact terahertz demultiplexer is developed using a hybrid inverse design that combines genetic algorithms with topology optimization. The device enables simultaneous mode‐ and wavelength‐division multiplexing within a footprint smaller than two wavelengths.
Faqian Chong   +5 more
wiley   +1 more source

Study of fisheries from fluvio-marine Danube Delta: Matita-Merhei and Rosu-Puiu lake complexes [PDF]

open access: yesScientific Annals of the Danube Delta Institute, 2006
The average commercial fish catch decreased from 1,379 tons, in Matita-Merhei complex of lakes and 787 tones in Rosu-Puiu complex of lakes (average catch of 1963-1974 period), to 307 tons, respectively 401 tons average catch of 1992 – 2004 period.
CERNISENCU Irina, NĂVODARU Ion
doaj  

Marine recreational fisheries statistics survey for Northern and Central California, Quarterly Report No. 3, January to March 1980 [PDF]

open access: yes, 1987
Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in January to March 1980, is presented in a data report format.
Karpov, Konstantin A.   +1 more
core  

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