Results 41 to 50 of about 1,380,032 (300)

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

The Principle of Double Effect within Catholic Moral Theology: A Response to Two Criticisms of the Principle in Relation to Palliative Sedation

open access: yesJournal of Moral Theology, 2017
If not considered an isolated principle but as part of Catholic moral theology, the principle of double can serve as an aid to discernment of the morality of an action, as one moral principle in the context of a broader moral system.
Gina Maria Noia
doaj  

Proposal for an Optical Test of the Einstein Equivalence Principle

open access: yes, 2019
The Einstein Equivalence Principle (EEP) underpins all metric theories of gravity. Its key element is the local position invariance of non-gravitational experiments, which entails the gravitational red-shift.
Magnani, Piergiovanni   +6 more
core   +1 more source

Mixing in massive stellar mergers [PDF]

open access: yes, 2007
The early evolution of dense star clusters is possibly dominated by close interactions between stars, and physical collisions between stars may occur quite frequently.
Gaburov, E.   +2 more
core   +6 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

双自由度包络法推导双圆弧齿轮齿面方程

open access: yesJixie chuandong, 2001
According to the mesh principle of gear, applying double-parameter envelope function, the authors developed the flank equation of gear from double-circular-arc gear hob, and provided a numerical solution which can be used to investigate the effect of ...
邓力, 张廷健, 袁和相, 周军
doaj  

Piezoelectric Effect of Antibacterial Biomimetic Hydrogel Promotes Osteochondral Defect Repair

open access: yesBiomedicines, 2022
The lack of vascular tissue and the low metabolism and biological activity of mature chondrocytes lead to the low regeneration ability of articular cartilage.
Jiahang Wu   +10 more
doaj   +1 more source

Possible Intentions and the Doctrine of Double Effect [PDF]

open access: yes, 2019
Under the standard formulation of the Doctrine of Double Effect, an act is permissible only if it is the result of an intention to do good and not the result of an intention to do bad.
Fruge, Christopher
core  

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Home - About - Disclaimer - Privacy