منابع مشابه
Neutrino masses: hierarchy without hierarchy
A large hierarchy of the Dirac masses can result in a small hierarchy for the low energy masses of the active neutrinos. This can happen even if the Majorana masses of right-handed neutrinos are all equal. A realistic description of the observed neutrino masses and mixing can be obtained starting from a large hierarchy in the Dirac masses. A large mixing for solar neutrinos results from the neu...
متن کاملA hierarchy of cosmic compact objects - without black holes
We make the case for the existence of a, hitherto unknown and unobserved, hierarchy of ever more compact cosmic objects in the universe. This hypothesis is based on i) the assumption of ”elementary” particle sub-constituents on several levels below the presently known, inspired by Glashow’s ”blooming desert” [1], ii) the existence of nearly scale-invariant density fluctuations in the early univ...
متن کاملSUSY without the Little Hierarchy
We propose a simple gauge extension of the minimal supersymmetric standard model (MSSM), where the fine tuning in the Higgs mass parameters is highly reduced. The Higgs boson is insensitive to high energies because of supersymmetry and also because it is a pseudo-Goldstone boson of a global symmetry (referred to as “double protection” or “super-little Higgs” mechanism). A large shift in the Hig...
متن کاملGeneral Composability without a Common Reference String
We propose a modification to the frame-work of Universally Composable (UC) security [3]. Our new notion, involves comparing the protocol executions with an ideal execution involving ideal functionalities (just as in UC-security), but allowing the environment and adversary access to some super-polynomial computational power. We argue the meaningfulness of the new notion, which in particular subs...
متن کاملTumor Angiogenesis Factor1
Recent evidence from our studies indicates that solid tumor growth is not continuous but that it can be separated into two stages, avascular and vascular. In the avascular stage, tumors remain dormant at diameters of 1 to 2 mm. Further growth is possible only after new capillaries have been elicited from the host and have penetrated the tumor. This capillary proliferation is stimulated by a dif...
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: British Journal of Psychology, 1904-1920
سال: 1916
ISSN: 0950-5652
DOI: 10.1111/j.2044-8295.1916.tb00133.x