نتایج جستجو برای: complete or incomplete
تعداد نتایج: 3784023 فیلتر نتایج به سال:
Abstract We know that the fossil record is incomplete. But how incomplete? Here we very coarsely estimate completeness of mammalian in Miocene, assuming duration a species about 1 Myr and diversity has stayed constant structurally comparable to taxonomic today. The overall under these assumptions appears be around 4%, but there are large differences across groups. find proboscideans perissodact...
To evaluate the role of mediastinal irradiation (RT) following surgery for invasive thymomas, a clinical and pathologic review of 117 patients with the diagnosis of thymoma was completed. Fourteen cases were excluded because of the lack of histologic criteria for a thymic tumor, and the remaining 103 were classified according to a staging system as follows: stage I, completely encapsulated (43)...
To investigate the prognostic values of clinical factors 72 h within traumatic cervical spinal cord injury (TCSCI). Data were extracted from the medical materials of 57 TCSCI cases. AIS was used as the outcome measure and divided into dichotomous variables by two methods, i.e. "complete(AIS = A)/incomplete(AIS ≠ A) SCI" and "motor complete(AIS = A or B)/incomplete(AIS ≠ A and B) SCI". Relations...
We experimentally study decentralized one-to-one matching markets with transfers. vary the information available to participants, complete or incomplete, and surplus structure, supermodular submodular. Several insights emerge. First, while often culminate in efficient matchings, stability is more elusive, reflecting difficulty of arranging attendant Second, incomplete submodularity present hurd...
utopia has, for four centuries, accompanied that hope of progress and that striving for betterment. it now straggles against a widespread sense that this has been an illusion, or an impossible dream. the utopian idea can never entirely disappear, but utopia as a form of the social imagination has clearly weakened. if it cannot instill its vision in the public consciousness, the consequences...
the space now known as complete erdos space ec was introduced by paul erdos in 1940 as the closed subspace of the hilbert space ?2 consisting of all vectors such that every coordinate is in the convergent sequence {0} ? { 1 n : n ? n}. in a solution to a problem posed by lex g. oversteegen we present simple and useful topological characterizations of ec. as an application we determine the ...
Incomplete transaction can be supported in databases by enabling administrators to express update policies that complete incomplete transactions. In this paper, we propose a language for expressing such update policies. We show that the problem of verifying whether or not a policy is sound and complete is undecidable in general. We identify decidable instances of this decision problem, and for ...
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