The possibility of the clouds of Venus providing habitats for extremophilic microorganisms has been discussed for several decades. We show here that the action of the solar wind leads to erosion of parts of the atmosphere laden with aerosols and putative microorganisms, forming a comet-like tail in the antisolar direction. During inferior conjunctions that coincide with transits of the planet V...

We argue that finite clauses should be regarded as the basic unit in syntactic analysis of spoken language, and describe a method that automatically detects clause boundaries by classifying coordinating conjunctions in spoken language discourse as belonging to either the syntactic level or the discourse level of analysis. The method exploits the special role that coordinating conjunctions play ...

Subjects searched sets of items for targets defined by conjunctions of color and form, color and orientation, or color and size. Set size was varied and reaction times (RT) were measured. For many unpracticed subjects, the slopes of the resulting RT X Set Size functions are too shallow to be consistent with Treisman's feature integration model, which proposes serial, self-terminating search for...

To clarify the organization of motor representations in posterior parietal cortex, we test how three motor variables (body side, body part, cognitive strategy) are coded in the human anterior intraparietal cortex. All tested movements were encoded, arguing against strict anatomical segregation of effectors. Single units coded for diverse conjunctions of variables, with different dimensions anat...

the purpose of this article is to present a comparative study of the views of islamic logicians on ‘verity-propositions’ and nelson goodman’s ideas on law-like statements. in order to achieve this, first we describe the analyses of islamic logician of the meaning of factual proposition and goodman`s presentation of law-like statements. then, using a comparative approach, we explain the points o...

Discourse is the most fundamental linguistic unit that commonly used in daily life. To compose an effective discourse, one needs a mechanism for combining discourse's propositions. The technique referred to as proposition relational marker. tool's format, which includes references and conjunctions. term "reference" refers propositions whereas "conjunction" discourse. purpose of this article exp...

I shall argue in this paper that it should.1 To begin with, I shall defend (CP) against several criticisms that have been launched against it. These criticisms are of two kinds, which I shall call internal and external respectively. Internal objections are that a theory that includes (CP) fails to give an account of what it is rational to believe that is satisfactory by its own standards. In pa...