Results 61 to 70 of about 320,218 (320)

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

FEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini, Nicolò Antonelli, Gianluca Molla   +2 more
wiley   +1 more source

Optical images of massive boson stars with nonlinear electrodynamics

European Physical Journal C: Particles and Fields
This study investigates the optical imaging characteristics of massive boson stars based on the Einstein–Klein–Gordon theory coupled to nonlinear electrodynamics.
Xiao-Xiong Zeng, Huan Ye, Ke-Jian He, Hao Yu   +3 more
doaj   +1 more source

Massive binaries and the enrichment of the interstellar medium in globular clusters [PDF]

, 2009
Abundance anomalies observed in globular cluster stars indicate pollution with material processed by hydrogen burning. Two main sources have been suggested: asymptotic giant branch stars and massive stars rotating near the break-up limit.
Bisikalo, Carretta, D'Antona, de Greve, de Mink, de Mink, Decressin, Decressin, Decressin, Figueiredo, Glebbeek, N. Langer, O. R. Pols, Packet, Pasquini, Petrovic, Pols, Prantzos, Prantzos, R. G. Izzard, Refsdal, S. E. de Mink, van Rensbergen   +22 more
core   +1 more source

Presupernova structure of massive stars [PDF]

Astrophysics and Space Science, 2011
Proceedings for invited talk at High Energy Density Laboratory Astrophysics conference, Caltech, March 2010.
Meakin, Casey A., Sukhbold, Tuguldur, Arnett, David   +2 more
openaire   +2 more sources

Navigating new norms: a systematic review of factors for the development of effective digital tools in higher education

FEBS Open Bio, EarlyView.
What factors make for an effective digital learning tool in Higher Education? This systematic review identifies elements of a digital tool that published examples reveal to be features of an engaging and impactful digital tool. A systematic literature search yielded 25 research papers for analysis.
Akmal Arzeman, Jessica Haines, Connie Pritchard, Stephen Rutherford, Nigel Francis   +4 more
wiley   +1 more source

Critical Metallicity of Cool Supergiant Formation. I. Effects on Stellar-mass Loss and Feedback

The Astrophysical Journal, 2023
This paper systematically studies the relation between metallicity and mass loss of massive stars. We perform one-dimensional stellar evolution simulations and build a grid of ∼2000 models with initial masses ranging between 11 and 60 M _⊙ and absolute ...
Po-Sheng Ou, Ke-Jung Chen, You-Hua Chu, Sung-Han Tsai   +3 more
doaj   +1 more source

Pathogenic Neurofibromatosis type 1 gene variants in tumors of non‐NF1 patients and role of R1276

FEBS Open Bio, EarlyView.
Somatic variants of the neurofibromatosis type 1 (NF1) gene occur across neoplasms without clinical manifestation of the disease NF1. We identified emerging somatic pathogenic NF1 variants and hotspots, for example, at the arginine finger 1276. Those missense variants provide fundamental information about neurofibromin's role in cancer.
Mareike Selig, Swanhild Lohse, Sara Elahi, Nils Hartmann, Stefanie Deckert, Shutian Si, Alexander Desuki, Anja Harder   +7 more
wiley   +1 more source

Wave-driven Mass Loss of Stripped Envelope Massive Stars: Progenitor-dependence, Mass Ejection, and Supernovae [PDF]

, 2021
Shing-Chi Leung, Samantha Wu, Jim Fuller
openalex   +1 more source

Natural Products as Geroprotective Modulators in Diabetic Nephropathy: A Mechanistic Framework Integrating Aging Hallmarks and the AMPK–SIRT1–Nrf2 Axis

Aging and Cancer, EarlyView.
Natural products target the aging kidney in diabetic nephropathy by restoring the AMPK–SIRT1–Nrf2 axis, reducing oxidative stress, inflammation, fibrosis, and cellular senescence while enhancing mitochondrial biogenesis and antioxidant defenses.
Sherif Hamidu, Latif Adams, Eunice Ampem‐Danso, Justice Kumi, Abigail Aning, Fatima Hamidu, Mustapha Abdul Mumin Mohammed, Ayuba Nii Darku Ankrah, Seth Kwabena Amponsah   +8 more
wiley   +1 more source

Long-term Evolution in Ionization of Ejecta Illuminated by Eta Carinae

The Astrophysical Journal
Changes in the flux and spectrum of Eta Carinae ( η Car) since 1900 have been attributed to the evolution of the central binary by some. Others suggest evolution in the occulting ejecta.
Augusto Damineli, Noel D. Richardson, Felipe Navarete, Theodore. R. Gull, Eduardo Fernández-Lajús, Anthony F. J. Moffat, Desmond J. Hillier, Gerd Weigelt, Michael F. Corcoran   +8 more
doaj   +1 more source