منابع مشابه
Is there a preferred canonical quantum gauge?
The interaction between a long solenoid and a charged particle in the field free region outside it is studied treating both systems quantum mechanically. This leads to a paradox which suggests that when the electromagnetic field is quantized, there may be a preferred quantum gauge for the vector potential. This paradox is resolved by canonically quantizing the system in a different gauge in whi...
متن کاملLead extraction is preferred for lead revisions and system upgrades: when less is more.
Cardiovascular implantable electronic device (CIED) use has increased exponentially during the past decade,1–3 with 4.5 million active devices and 1 million new leads implanted annually.4,5 With expanded CIED use and indications for device therapy, observed complications have increased in parallel.6–14 The occurrence of more frequent device system revisions for complications,6–8 system upgrades...
متن کاملWhen Less is More
engine and airframe manufacturers for decades have cited the direct relationship between engine wear and high exhaust gas temperature (EGT) in recommending that operators use less than maximum takeoff thrust whenever possible. While the cost benefits of reduced-thrust takeoffs are thoroughly documented, the safety benefits are not as well understood. Thus, there is a common perception that usin...
متن کاملWhen Less is More.
minimum level. Sometimes more really is more, and less really is less. But often, less is more. If all this piece does is open up the question of whether less is more —if all it does is remind the reader that this is a question, and that our answers to it have important repercussions— then it will have served its purpose. Many ethicists in the ancient tradition argued that human lives could be ...
متن کاملWhen Less is Less and When Less is More: Starting Small with Staged Input
It has been suggested that external and/or internal limitations may paradoxically lead to superior learning (i.e., the concepts of “starting small” and “less is more”; Elman, 1993; Newport, 1990). In this paper, we explore what conditions might lead to a starting small effect. We report on four artificial grammar learning experiments with human participants. In Experiment 1A, we found an effect...
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: Built-Environment Sri Lanka
سال: 2011
ISSN: 1391-5983
DOI: 10.4038/besl.v9i1-2.3064