منابع مشابه
Justifying our existence.
The title of this editorial may have existential and philosophical implications but for our purposes is designed to reflect a more everyday requirement. That is to demonstrate to the public that the treatments we purvey are effective in managing their complaints. The need to demonstrate effectiveness is a rational one both in terms of spending healthcare budgets wisely and avoiding unnecessary ...
متن کاملCan Science Change our Notion of Existence?
I explore the question of whether scientific changes can induce mutations in our ordinary notion of existence. I conclude that they can’t, partially on the grounds that some of the proposed alternative-notions of existence are only terminologically-distinct from our ordinary notion, and so don’t provide genuine metaphysical alternatives, and partially on the grounds that the ordinary notion of ...
متن کاملPenguin Amplitudes: Charming Contributions *
We briefly introduce the Wick-contraction parametrization of hadronic matrix elements and discuss some applications to B and K physics. In spite of the progresses in non-perturbative techniques, the computation of hadronic matrix elements is still an open problem, particularly when the final state contains more than one meson. In this case, methods based on Euclidean field theory, such as QCD s...
متن کاملCharming Penguins in B Decays
Full expressions of the B0 d → π+π− and B0 d → π0π0 amplitudes, given in terms of matrix elements of operators of the effective weak Hamiltonian, are used to study the dependence of the relevant branching ratios on the different contributions. The uncertainty in the extraction of the weak phase α from the measurement of the timedependent asymmetry in B0 d → π+π− decays is also analyzed. We find...
متن کاملCharming the Snake
Snake venoms are potent cocktails containing a diverse array of proteins that typically target neuromuscular junctions or the hemostatic system of the snake’s prey. Many of the venom proteins that target hemostasis adopt a C-type lectinlike fold and are therefore termed snaclecs (ie, snake venom C-type lectins). Despite the structural similarity to functional lectins, the snaclecs do not exhibi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Reviews Physics
سال: 2019
ISSN: 2522-5820
DOI: 10.1038/s42254-019-0066-y