in this article, we have shown, for the add-point monad t, thepartial morphism category set*is isomorphic to the kleisli category sett. alsowe have proved that the category, sett, of t-algebras is isomorphic to thecategory set of pointed sets. finally we have established commutative squaresinvolving these categories.

Learning a second language (L2) is a complex task that often takes years before functional communicative skills are attained, and that rarely results in native-like proficiency. One of the biggest challenges for an L2 learner is acquiring the sounds and sound patterns of a new language. Beginner learners struggle with both perception and production of novel sounds, and even years of practice do...

Currently, the classification criterion of reserves were determined by the scope of the values of criteria such as geological attributes, reservoir phydical parameters and etc., which required all attribute values of one block were just right in the existing range of criteria, otherwise it would be difficult to divide the hard-to-recover reserves into different categories. To solve this problem...

The problem of multi-view/view-invariant recognition remains one of the most fundamental challenges to the progress of the computer vision. In this paper we consider the problem of modeling the combined object-viewpoint manifold. The shape and appearance of an object in a given image is a function of its category, style within category, viewpoint, and several other factors. The visual manifold ...

We present a comparative study of certain invariants defined for group actions and their analogues orbifolds. In particular, we prove that Fadell's equivariant category $G$-spaces coincides with the Lusternik-Schnirelmann orbifolds when is finite.

Visual categories group together different objects as the same kinds of thing. We review a selection of research on how visual categories are learned. We begin with a guide to visual category learning experiments, describing a space of common manipulations of objects, categories, and methods used in the category learning literature. We open with a guide to these details in part because througho...

The effect of lexical competition on recall performance was studied using the release from proactive interference paradigm. Word triads were equated in terms of local neighborhood density but varied on global neighborhood density, neighborhood frequency, and word frequency to create sets of lexically “easy” and “hard” words. Proactive interference was built up across four trials of either “easy...