Starting the Tenth Year

The Effect of Simulation Chemistry Training on Spatial Ability and Problem Solving Skills for Tenth Year Female Students in Tehran

Aims: One of the contexts that can play an important role in teaching and learning is educational simulation. Given the benefits of this technology, the present study investigates the impact of chemistry education using educational simulation on the spatial ability and problem solving skills of tenth grade female students in Tehran. Methods: This is a quasi-experimental study with pretest-postt...

The Hilbert’s-Tenth-Problem Operator

For a ring R, Hilbert’s Tenth Problem HTP (R) is the set of polynomial equations over R, in several variables, with solutions in R. We view HTP as an operator, mapping each set W of prime numbers to HTP (Z[W−1]), which is naturally viewed as a set of polynomials in Z[X1, X2, . . .]. For W = ∅, it is a famous result of Matiyasevich, Davis, Putnam, and Robinson that the jump ∅′ is Turing-equivale...

Tenth Annual Scientific Conference

Tenth District Economic Developments

The Tenth District economy grew at a moderate pace during 1996. The district economy expanded vigorously in early 1996 but slowed as the year progressed. Tight labor markets in many parts of the region appeared to limit job growth, particularly in the large trade and services sectors. A slumping cattle industry also curbed overall growth in parts of the district. Nonetheless, construction conti...

Tenth Prairie Analysis Seminar

If we have a real vector field in the plane, the integral curves foliate the plane. Similarly, if we have a complex vector field in C then the complex integral curves foliate space by Riemann surfaces. An example of a question one might ask, is whether these Riemann surfaces are dense in space. In the case of vector fields in the plane, this is impossible, but if we do it on a torus instead, it...