Results 41 to 50 of about 89,790 (255)

Blood flow-induced Notch activation and endothelial migration enable vascular remodeling in zebrafish embryos. [PDF]

, 2018
Arteries and veins are formed independently by different types of endothelial cells (ECs). In vascular remodeling, arteries and veins become connected and some arteries become veins. It is unclear how ECs in transforming vessels change their type and how
Ablooglu, Ararat J, Groisman, Alex, Gutierrez, Edgar, Saikin, Semion K, Tkachenko, Eugene, Traver, David, Weijts, Bart   +6 more
core   +3 more sources

Area Dominates Edge in Pointillistic Colour

i-Perception, 2018
In Pointillism and Divisionism, artists moved from tonal to chromatic palettes, as Impressionism did before them, and relied on what is often called optical mixture instead of stirring paints together.
Jan Koenderink, Andrea van Doorn, Karl Gegenfurtner   +2 more
doaj   +1 more source

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

Changes in the Butterflies (Lepidoptera) of Winneshiek County, Iowa After 90 Years [PDF]

, 2018
In 1908, Bert Porter reported the presence of 73 species of butterflies in the Decorah, Iowa area. Since then, no systematic surveys of the butterflies in the Decorah area have been completed despite extensive habitat changes and degradation of native ...
Bovee, Jennifer A, Larsen, Kirk J
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Processing bimodal stimuli: Integrality/separability of colour and orientation

Frontiers in Psychology, 2013
We examined how two distinct stimulus features, orientation and colour, interact as contributions to global stimulus dissimilarity. Five subjects rated dissimilarity between pairs of bars (N = 30) varying in colour (four cardinal hues, plus white) and ...
David eBimler, Chingis eIzmailov, Galina eParamei   +2 more
doaj   +1 more source

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

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Effects of photoperiod on growth of larvae and juveniles of the anemonefish Amphiprion melanopus [PDF]

, 2000
Rearing of anemonefishes is now relatively routine compared to the culture of cardinalfishes (Apogonidae) or angelfishes (Pomacanthidae). However, it is still a labor intensive, time intensive and expensive procedure.
Ainsworth, T., Arvedlund, M., McCormick, M.I.   +2 more
core  

Do position and species identity of neighbours matter in 8–15-year-old post harvest mesic stands in the boreal mixedwood? [PDF]

, 2010
Neighbourhood competition indices (NCI), where position and species identity of neighbours are known, have been used to investigate growth and competitive interactions among adult trees.
Alain Paquette, Balandier, Bella, Brais, Burnham, Callaway, Canham, Canham, Carter, CEGFPQ, Christian Messier, Claveau, Coates, Delagrange, Dubois, Edwards, Fahey, Filipescu, Frey, Frédéric Boivin, Goffe, Haeussler, Hegyi, Hubbell, Humbert, Larocque, Lieffers, Lieffers, Lorimer, Mallik, McKeague, Mehlich, Michael J. Papaik, MRNF, Nelson Thiffault, Papaik, Pinno, Pueyo, Robitaille, Ruel, Saucier, Simard, Stadt, Tierney, Tilman, Uriarte, Valladares, Woods   +47 more
core   +1 more source