Project-based and self-directed learning

This article discusses the benefits of project-based and self-directed learning to develop competency in utilizing a second language and working collaboratively. The background premise of these modes of learning is provided, demonstrating that they work well for differentiated levels and language skills and improve student competence. Some of the areas examined are intercultural and scientific, ones that require the use of specific language in context. In addition, the concept of creating projects that increase student investment and motivation to make learning more relevant is juxtaposed with a student’s competency in an area after having participated in traditional approaches to learning. The overall benefit of the use of project-based and self-directed learning is that it allows the student to develop a higher skill set and greater engagement with the subject matter, producing better language and content outcomes

Supply Constraints and Housing Prices

This paper analyzes the effects of land use constraints on housing prices. We provide a new framework for evaluating policy when mobility across regions is allowed but limited. A key result is that loosening regulatory constraints within individual regions would have little effect on prices for plausible parameterizations. For example, we show reasonable conditions under which, even if every building in Manhattan were 100 stories tall, prices would fall by less than 15 percent.housing supply and markets, regulatory policies, land use patterns

A Comparative Study Of The Jewish And The United States Constitutional Law Of Capital Punishment

The Jewish view on the death penalty is that it should exist but it should never be used .... [lI]t is Governor Pataki\u27s job to ensure :order. But he must remember that as a leader he must exhibit attributes of both the father and the mother. Governor Pataki is a nice man. But if he acts on the death penalty, he will be the leader of a bloody governmen

Optimal Commodity Taxation when Land and Structures must be Taxed at the Same Rate

We show that the optimal property tax rate rises with the ratio of land rents to structure and land development costs. California’s high ratio of income to property tax revenue and the distribution of Federal housing subsidies thus appear geographically misplaced. Proportional taxation of non-housing commodities is not optimal, even when elasticities with respect to wages are identical. Absent externalities, the desirability of transportation taxes and “anti-sprawl” growth controls hinge on the relative importance of time versus money in commuting costs.

Sex significantly influences transduction of murine liver by recombinant adeno-associated viral vectors through an androgen-dependent pathway.

A systematic evaluation of the influence of sex on transduction by recombinant adeno-associated viral vector (rAAV) indicated that transgene expression after liver-targeted delivery of vector particles was between 5- to 13-fold higher in male mice compared with female mice, irrespective of the proviral promoter or cDNA and mouse strain. Molecular analysis revealed that the rAAV genome was stably retained in male liver at levels that were 7-fold higher than those observed in females. Further, the sex difference in transduction was observed with AAV-2- and AAV-5-based vectors, which use distinct receptor complexes for infection. In concordance with the differences in AAV transduction, gel shift analysis with nuclear extracts derived from the liver of mice and humans revealed substantially higher binding of host nuclear protein to the rep-binding site (RBS) of AAV inverted terminal repeat (ITR) in males compared with females. Transduction efficiency and binding of nuclear protein to RBS was dramatically reduced in male mice by castration. In contrast, although oophorectomy did not significantly influence rAAV transduction, administration of 5alpha dihydrotestosterone, prior to gene transfer, increased stable hepatocyte gene transfer in females to levels observed in male mice, implying that androgens significantly influence hepatocyte gene transfer. Interestingly, sex did not have a significant effect on AAV gene transfer into nonhepatic tissue, indicating that there are distinct tissue- and sex-specific differences in the mechanisms responsible for efficient transduction with this vector. These results have significant implications for gene therapy of autosomal and acquired disorders affecting the liver

Un Estudio Comparativo De La Ley Judaica Y La Ley Constitucional De Los Estados Unidos Sobre La Pena Capital

Desde 1966 a 1972, a pesar de estatutos permitiendo la pena capital en la mayoria de los estados, s6lo tres hombres fueron ejecutados en todos los Estados Unidos. Un observador objetivo habria citado esta tendencia como un pron6stico del abandono gradual de esta pena definitiva

Optimal Commodity Taxation When Land and Structures Must Be Taxed at the Same Rate

We show that the optimal property tax rate rises with the ratio of land rents to structure and land development costs. Californias high ratio of income to property tax revenue and the distribution of Federal housing subsidies thus appear geographically misplaced. Proportional taxation of non-housing commodities is not optimal, even when elasticities with respect to wages are identical. Absent externalities, the desirability of transportation taxes andanti-sprawl growth controls hinge on the relative importance of time versus money in commuting costs.Property Taxes, Henry George Theorem

A review of the population structure of yellowfin tuna, Thunnus albacares, in the Eastern Pacific Ocean

ENGLISH: Since its inception in 1950 by agreement between the Republic of Costa Rica and the United States of America, the Inter-American Tropical Tuna Commission has been engaged in studies of the biology, ecology and population dynamics of yellowfin tuna in the eastern Pacific Ocean. Prime consideration has been given to the evaluation of the effects of fishing pressure on the yellowfin tuna in this area in order to estimate the maximum sustainable yield. A portion of the eastern Pacific has been defined by the Inter-American Tropical Tuna Commission (1963) as a regulatory area for yellowfin tuna (Figure 1). SPANISH: Desde su incepción en 1950, por un acuerdo entre la República de Costa Rica y los Estados Unidos de América, la Comisión Interamericana del Atún Tropical ha estado ocupada en los estudios de la biología, ecología y dinámica de las poblaciones del atún aleta amarilla en el Océano Pacífico Oriental. Se consideró primariamente la evaluación de los efectos de la presión de la pesquería sobre el atún aleta amarilla en esta área, para poder estimar el rendimiento máximo sostenible. Una parte del Pacífico Oriental ha sido definida por la Comisión Interamericana del Atún Tropical (1963), como área de reglamentación del atún aleta amarilla (Figura 1). (PDF contains 60 pages.

Size and year class composition of catch, age and growth of yellowfin tuna in the Eastern Tropical Pacific Ocean, 1951-1961

ENGLISH: Analysis of yellowfin tuna size-composition data encompassing data for purse-seiners and baitboats, and including data collected prior to the Commission's sampling program, has permitted a more careful examination of variations in growth rates of yellowfin year classes. SPANISH: El análisis de los datos de la composición de tamaños del atún aleta amarilla correspondiente a los que provienen de los barcos rederos y de carnada, e incluyendo datos recolectados previamente al programa de muestreo de la Comisión, ha permitido un examen más cuidadoso de las variaciones en las tasas de crecimiento de las clases anuales del atún aleta amarilla