Most states issue permits to carry a concealed handgun for lawful protection to an applicant who is over 21 years of age, and who passes a fingerprint-based background check and a safety class. These permits allow the person to carry a concealed defensive handgun almost everywhere in the state. Should professors, school teachers, or adult college and graduate students who have such permits be allowed to carry firearms on campus? In the last two years, many state legislatures have debated the (...) topic. School boards, regents, and administrators are likewise faced with decisions about whether to change campus firearms policies. This Paper is the first to provide a thorough analysis of the empirical evidence and policy arguments regarding licensed campus carry. Whether a reader agrees or disagrees with the Paper's policy recommendations, the Paper can lay the foundation for a better-informed debate, and a more realistic analysis of the issue. (shrink)

The idea that natural language grammar and planned action are relatedsystems has been implicit in psychological theory for more than acentury. However, formal theories in the two domains have tendedto look very different. This article argues that both faculties sharethe formal character of applicative systems based on operationscorresponding to the same two combinatory operations, namely functional composition and type-raising. Viewing them in thisway suggests simpler and more cognitively plausible accounts of bothsystems, and suggests that the language faculty evolved in the (...) speciesand develops in children by a rather direct adaptation of a moreprimitive apparatus for planning purposive action in the world bycomposing affordances of objects or tools. Theknowledge representation that underlies such planning is alsoreflected in the natural language semantics of tense, mood, andaspect, which the paper begins by arguing provides the key tounderstanding both systems. (shrink)

This is a book about how we see: the environment around us (its surfaces, their layout, and their colors and textures); where we are in the environment; whether or not we are moving and, if we are, where we are going; what things are good for; how to do things (to thread a needle or drive an automobile); or why things look as they do.The basic assumption is that vision depends on the eye which is connected to the brain. The (...) author suggests that natural vision depends on the eyes in the head on a body supported by the ground, the brain being only the central organ of a complete visual system. When no constraints are put on the visual system, people look around, walk up to something interesting and move around it so as to see it from all sides, and go from one vista to another. That is natural vision—and what this book is about. (shrink)

The primary difference between direct and inferential theories of perception concerns the location of perceptual content, the meaning of our perceptions. In inferential theories of perception, these meanings arise inside animals, based upon their interactions with the physical environment. Light, for example, bumps into receptors causing a sensation. The animal (or its brain) performs inferences on the sensation, yielding a meaningful perception. In direct theories of perception, on the other hand, meaning is in the environment, and perception does not depend (...) upon meaning- conferring inferences. Instead the animal simply gathers information from a meaning- laden environment. But if the environment contains meanings, then it cannot be merely physical. This places a heavy theoretical burden on direct theories of perception, a burden so severe that it may outweigh all the advantages to conceiving perception as. (shrink)

Within the last decade or so several philosophers have argued against handgun prohibition on the ground that it violates the right to self-defense. However, even these philosophers grant that the right to own handguns is not absolute and could be overridden if doing so would bring about an enormous social good. Analysis of intra-United States empirical data cited by gun rights advocates indicates that guns do not make us safer, while international data lends powerful support to the thesis that guns (...) do indeed increase homicide. If handguns do not make us safer, then appealing to the right to self-defense as an objection to prohibition is moot. Prohibition neither violates the right to self-defense nor sacrifices anyone’s interests for the common good, since it makes each person less likely to be murderedthan the current permissive handgun laws. Moreover, we also must take into account the right to life of victims of handgun crimes made possible by liberal handgun laws. Consequently, invoking the right to self-defense does not provide any sound reason against handgun prohibition over and above familiar utilitarian objections, which are themselves refuted by the empirical evidence. (shrink)