Results 101 to 110 of about 3,852 (253)

Topology and geometry of caustics in relation with experiments [PDF]

, 1999
Caustics of geometrical optics are understood as special types of Lagrangian singularities. In the compact case, they have remarkable topological properties, expressed in particular by the Chekanov relation.
Joets, Alain
core  

Caustics in turbulent aerosols

, 2005
Networks of caustics can occur in the distribution of particles suspended in a randomly moving gas. These can facilitate coagulation of particles by bringing them into close proximity, even in cases where the trajectories do not coalesce.
Mehlig, B, B Mehlig, M. Wilkinson, B. Mehlig, Wilkinson, M., M Wilkinson, Mehlig, Bernhard,   +6 more
core   +1 more source

The microbiome in human skin aging

FEBS Letters, EarlyView.
Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana, Cornelia Wiegand, Omid Omrani, Mario Fabri   +3 more
wiley   +1 more source

Esophageal Mucosal Injuries From Drugs, Radiation, and Caustic Agents [PDF]

The Korean Journal of Helicobacter and Upper Gastrointestinal Research
Various factors can lead to esophageal mucosal injury. A thorough patient history is crucial to accurately diagnose esophageal injuries caused by drugs, radiation, and caustic agents.
Hyung Jin Bae, Younghee Choe
doaj   +1 more source

Microlensing Near Macro-Caustics [PDF]

Microlensing near macro-caustics is a complex phenomenon in which swarms of micro-images produced by micro-caustics form on both sides of a macro-critical curve.
Oguri, Masamune, Anguita, Timo, Miralda-Escudé, Jordi, Saha, Prasenjit, Schechter, Paul L., Weisenbach, Luke, Miralda Escudé, Jordi, Oguri, M.   +7 more
core   +1 more source

Autophagy and mitophagy in pancreatic β‐cell homeostasis and their involvement in diabetes pathophysiology

FEBS Letters, EarlyView.
This review focuses on the role of autophagy and mitophagy in maintaining pancreatic β‐cell function and homeostasis. We discuss how genetic defects affecting these pathways contribute to the development of type 1, type 2, monogenic, and gestational diabetes. We further explore their potential as therapeutic targets. Created in BioRender.
Yunkyeong Lee, Mingming Tong, Anna L. Gloyn   +2 more
wiley   +1 more source

Dark Matter Caustics

, 2012
Sikivie, Pierre. (2012). Dark Matter Caustics.
Sikivie, Pierre
core  

High-order persistence of resonant caustics in perturbed circular billiards

We find necessary and sufficient conditions for high-order persistence of resonant caustics in perturbed circular billiards. The main tool is a perturbation theory based on the Bialy–Mironov generating function for convex billiards. All resonant caustics
Edmond Koudjinan, Comlan, Ramírez Ros, Rafael   +1 more
core   +1 more source

Partial depletion of plasminogen activator inhibitor‐1 decreases subcutaneous fat cell hypertrophy and liver cholesterol in high‐fat‐fed female mice

FEBS Letters, EarlyView.
Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante, Robert Sharp, Pradip K. Saha, Elizabeth S. Anaya, Elizabeth L. Lieu, Evelyn L. de Groot, Pooja Patel, Mi Jeong Heo, Aaron R. Cox, Kang Ho Kim, Sean M. Hartig   +10 more
wiley   +1 more source

Light Propagation in a Medium with Transverse Refractive Index Gradient

Optics
Within the framework of geometric optics, we obtain an analytical description of light propagation in media with a transverse variation in the refractive index.
Boris Laikhtman, Gregory Belenky
doaj   +1 more source