Results 131 to 140 of about 1,328,628 (304)

Structure Formation in Butterfly Scales: Interplay of Genetic Control, Mechanical Instabilities, and Dynamic Material Properties

Advanced Functional Materials, EarlyView.
Butterfly wing scales are intricate cuticular functional nanosctructures. This perspective suggests that spatially varying material properties, cytoskeletal constraints, and growth‐driven mechanical instabilities shape the resulting nanoscale architectures created from single cells.
Anupama Prakash, Victoria Lloyd, Yi Yang, Anna‐Lee Jessop, Anthony McDougal, Primož Pirih, Guillaume Duclos, Andrew Parnell, Mathias Kolle, Nicola J. Nadeau, Bodo D. Wilts   +10 more
wiley   +1 more source

A Quasi-Exactly Solvable N-Body Problem with the sl(N+1) Algebraic Structure

, 1998
Starting from a one-particle quasi-exactly solvable system, which is characterized by an intrinsic sl(2) algebraic structure and the energy-reflection symmetry, we construct a daughter N-body Hamiltonian presenting a deformation of the Calogero model ...
M. SHIFMAN, Ushveridze A., XINRUI HOU
core   +1 more source

Light‐Actuated Fiber‐Climbing Inchworm Robot Toward Endoluminal Navigation

Advanced Functional Materials, EarlyView.
A kirigami‐inspired soft inchworm robot harnesses optical energy from a customized side‐emitting optical fiber, guaranteeing its propulsion along the fiber body. The wavelength‐selective responsiveness of dye‐functionalized liquid crystal elastomers and the application of temporal illumination patterns enable sequential control of robot components. The
Antonio Lobosco, Leilei Song, Fan Liu, Yu‐Hsiang Lin, Venkatasubramanian Kalpathy Venkiteswaran, Hao Zeng, Sarthak Misra   +6 more
wiley   +1 more source

Evaluating the effectiveness and acceptability of two positive body image media micro-interventions among children aged 4–6 years old – a study protocol

BMC Public Health
Background Children’s online media perpetuates appearance idealised images and can negatively impact the way children feel about their own and other people’s bodies (e.g., weight bias) at a young age.
H. G. Smith, K. M. Garbett, P. White, H. Williamson, N. Craddock   +4 more
doaj   +1 more source

Evidence for sodium-rich alkaline water in the Tagish Lake parent body and implications for amino acid synthesis and racemization. [PDF]

Proc Natl Acad Sci U S A, 2020
White LF, Tait KT, Langelier B, Lymer EA, Černok A, Kizovski TV, Ma C, Tschauner O, Nicklin RI.   +8 more
europepmc   +1 more source

A processing method and results of meteor shower radar observations [PDF]

Studies of meteor showers permit the solving of some principal problems of meteor astronomy: to obtain the structure of a stream in cross section and along its orbits; to retrace the evolution of particle orbits of the stream taking into account ...
Belkovich, O. I., Suleimanov, N. I., Tokhtasjev, V. S.   +2 more
core   +1 more source

Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review

Advanced Healthcare Materials, EarlyView.
Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro, Mario González‐Quintas, Mónica Fernández‐Arias, Jesús del Val, Félix Quintero, Rafael Comesaña, Fernando Lusquiños, Julian R. Jones, Juan Pou   +8 more
wiley   +1 more source

Orbital Orientations of Exoplanets: HAT-P-4b is Prograde and HAT-14b is Retrograde [PDF]

, 2011
We present observations of the Rossiter-McLaughlin effect for two exoplanetary systems, revealing the orientations of their orbits relative to the rotation axes of their parent stars.
Albrecht, Simon, Bakos, Gáspár Á., Crepp, Justin R., Hartman, Joel D., Holman, Matthew J., Howard, Andrew W., Isaacson, Howard, Johnson, John Asher, Marcy, Geoffrey W., Morton, Timothy D., Shporer, Avi, Winn, Joshua N.   +11 more
core  

Small Extracellular Vesicles from Neural Cells: Physiological and Pathological Roles, and Potential in Neurodegenerative Therapy

Advanced Healthcare Materials, EarlyView.
Neural cell–derived small extracellular vesicles (sEVs) are emerging as pivotal mediators in neurodegenerative diseases, exerting both pathogenic and therapeutic functions. This review synthesizes current evidence on how sEVs from distinct neural cell types regulate neurodegeneration, neuroprotection, biomarker discovery, and targeted drug delivery ...
Muhammad Waqas Salim, Wei Zhang, Lyndsey Collins‐Praino, Yuling Wang, Andrew Care   +4 more
wiley   +1 more source

Postpartum Obesity Is Associated With Increases in Child Adiposity in Midchildhood in a Cohort of Black and Dominican Youth

Current Developments in Nutrition
Background: Obesity disproportionately affects marginalized and low-income populations. Birth parent obesity from the prenatal period and childhood has been associated with child obesity.
Saralyn F Foster, Andrew G Rundle, Irene Tsai, Jeanine M Genkinger, Natalie R Burns, Lori A Hoepner, Marcela R Abrego, Sara Dube, Amy R Nichols, Judyth Ramirez-Carvey, Sharon E Oberfield, Abeer Hassoun, Frederica Perera, Elizabeth M Widen   +13 more
doaj   +1 more source