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background in spite of dozens of clinical trials to establish effective therapeutic and/or preventive vaccine to resolve hcv infection, no real vaccine has been proved to date. genetic vaccines based on replication-defective adenoviruses have proved to elicit strong and long lasting t-cell responses against a number of viral antigens and are even currently being used for vaccine trials in human...
Many astronomers seem to believe that we have discovered that Pluto is not a planet. But this is not so. Recent discoveries of trans-Neptunian Pluto-sized objects do not militate for Pluto’s expulsion from the planets unless we have prior reason for not simply counting these newly-discovered objects among the planets. I argue that this classificatory controversy — which I compare to the controv...
learning-oriented assessment seeks to emphasise that a fundamental purpose of assessment should be to promote learning. it mirrors formative assessment and assessment for learning processes. it can be defined as actions undertaken by teachers and / or students, which provide feedback for the improvement of teaching and learning. it also contrasts with equally important measurement-focused appro...
postcolonial feminism, also dubbed as third world feminism, is an innovative approach, demonstrating the way women of colonized countries suffer from both native patriarchies and imperial ideology. also due to this double-colonization, postcolonial feminists contend that third world women are subjected to both colonial domination of empire and male domination of patriarchy. while western femini...
efl/esl textbooks have been regarded as essential language teaching materials with which the learners spend about 70 up to 90 percent of their class time. the important role they play and their vast use make them not only influential in learning the language but also in shaping values and attitudes. put it another way, textbooks socialize learners using their contents (i.e. texts, illustrations...
tetrahedrane is most strained and the smallest cage compound. it attracts organic chemists because ofits unusual bonding nature and highly symmetrical structure. however, many efforts to isolate theparent tetrahedrane have been unsuccessful because of the high reactivity and very short lifetimecaused by the strain in this molecule. modeling of molecules for determination of structuralproperties...
Simple theoretical calculations have suggested that small body impacts onto Pluto's newly discovered small satellites, Nix and Hydra, are capable of generating time-variable rings or dust sheets in the Pluto system. Using HST/ACS data obtained on 2006 February 15 and 2006 March 2, we find no observational evidence for such a ring system and present the first constraints on the present-day I/F a...
classes cannot be instantiated, but can be extended by any kind of class. They can extend only other abstract classes. There is a distinguished abstract class called Object which is the ultimate superclass of any other class. A class containing abstract methods, either declared or inherited, must itself be declared abstract. Reference classes are similar to traditional Java classes: their insta...
(1) Consider the randomized multiplicative weights algorithm on the alternatingly correct pair of experts A, B, with update (1 −). Without loss of generality, assume that A is correct on even days, and B on odd days. At iteration t, the loss vector l(t) = [l A (t), l B (t)] is given by l(t) = [1, 0] if t is odd [0, 1] if t is even therefore the wight updates are given by w(t + 1) = [w A (t)(1 −...
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