Results 81 to 90 of about 346,330 (296)

The effects of pulse stimulation on biota - Research in relation to ICES advice - Effects on dogfish [PDF]

, 2009
Onderzoek naar het welzijn van hondshaaien bij de vangst. Er is onderzocht of de methode van het gebruik van stroom wel diervriendelijk is.
Haan, D., de, Heul, J.W., van der, Marlen, B., van, Velzeboer, I., Vis, J.W., van de   +4 more
core   +1 more source

Raman Microscopy at the Organic–Inorganic Interfaces in Human Calcified Aortic Valves Shows the Co‐Existence of Whitlockite Crystals and Carbonated Hydroxyapatite‐Mineralized Collagen Fibrils

Advanced Functional Materials, EarlyView.
This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden, Carolien T. A Kuster, Amber van Broekhoven, Raphaela Allgayer, Luco Rutten, Rona Roverts, Marta Cerruti, Elena Macías‐Sánchez, Jan Hein Cornel, Salloua el Messaoudi, Anat Akiva, Nico Sommerdijk   +11 more
wiley   +1 more source

Measurement of the electric field distribution in streamer discharges

Physical Review Research
Using electric field induced second harmonic generation (E-FISH), we performed direction-resolved absolute electric field measurements on single-channel streamer discharges in 70 mbar (7 kPa) air with 0.2 mm and 2 ns resolutions.
Yihao Guo, Anne Limburg, Jesse Laarman, Jannis Teunissen, Sander Nijdam   +4 more
doaj   +1 more source

Safe and Legal Fish Waste Composting in Alaska [PDF]

, 2011
This bulletin encourages soil production using fish waste, and teaches the safety and legal aspects of composting fish waste to comply with Alaska laws.
Chambers, Izetta
core  

Perfect imaging: they don't do it with mirrors [PDF]

, 2010
Imaging with a spherical mirror in empty space is compared with the case when the mirror is filled with the medium of Maxwell's fish eye. Exact time-dependent solutions of Maxwell's equations show that perfect imaging is not achievable with an electrical
Blaikie R J, Born M, Christie A, Gabrielli L H Leonhardt U Lipson M, Leonhardt U, Leonhardt U, Leonhardt U, Leonhardt U, Luneburg R K, Ma Y G Ong C K Sahebdivan S Tyc T Leonhardt U, Maxwell J C, Sahar Sahebdivan, Ulf Leonhardt   +12 more
core   +2 more sources

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

Advanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source

Daily changes in the electric behavior of weakly electric fish naturally persist in constant darkness and are socially synchronized

Biology Open, 2018
Daily rhythms allow anticipation of changes and allocation of energy to better cope with predictable events. Rhythms in behavior result from a complex combination of physiological processes timed by the nervous system and synchronized with external ...
Adriana Migliaro, Victoria Moreno, Paul Marchal, Ana Silva   +3 more
doaj   +1 more source

A Surface‐engineered Microfluidic Device for Antibody‐Mediated Negative Selection of High‐Quality Sperm for Assisted Reproduction

Advanced Functional Materials, EarlyView.
This study reports a microfluidic device with a functionalized surface utilizing a polyoxazoline coating and covalently immobilized gold nanoparticles and anti‐phosphatidylserine antibody. The device efficiently eliminates pre‐apoptotic and apoptotic spermatozoa and yields sperm with substantially improved quality and low DNA damage, offering a simple ...
Soraya Rasi Ghaemi, David J. Sharkey, Nicole O. McPherson, Markos Negash Alemie, Krasimir Vasilev, Sarah A. Robertson   +5 more
wiley   +1 more source

Pulse Frequency and Water Velocity Determine Crossing Probability in Pulsed Direct-Current Fish Barriers

Fishes
Fish barrier technology by pulsed direct current has broad application potential to guide fish to suitable waters. The primary objective of this investigation was to study the effects of electric pulse frequency and water velocity on fish deterrence by ...
Wanshuang Yi, Lu Cai, Yun Tan, Bo Xu, Jun Li, Lianwei Liu, Lanlan Xu, David Johnson, Shihong Zhu, Guosheng Yang   +9 more
doaj   +1 more source

Perfect imaging with positive refraction in three dimensions [PDF]

, 2009
Maxwell's fish eye has been known to be a perfect lens within the validity range of ray optics since 1854. Solving Maxwell's equations we show that the fish-eye lens in three dimensions has unlimited resolution for electromagnetic ...
J. C. Maxwell, J. D. Jackson, L. D. Landau, M. Born, R. K. Luneburg, Thomas G. Philbin, Ulf Leonhardt, W. Schleich   +7 more
core   +2 more sources