Legal U.S. Immigration: Influences on Gender, Age, and Skill Composition

The authors develop empirical models that enable them to examine the influence of two important determinants - source country characteristics and U.S. immigration policy - on the gender, age, and skills of immigrants coming to America.https://research.upjohn.org/up_press/1064/thumbnail.jp

Introduction: Themes and Issues in the Study of Indigenous Languages: Sharing Our Words and Worlds in Our Own Voices

Copyright © 2011 by Serafín M. Coronel-Molina & John H. McDowell. All rights reserved. No part of this work may be reproduced in any form by any means, including photocopying and recording, or by any information storage or retrieval system (except for brief quotations in critical articles or reviews) without written permission from the authors.This volume is the outcome of the First Symposium on Teaching Indigenous Languages of Latin America (STILLA), organized by the Minority Languages and Cultures of Latin America Program (MLCP) and the Center for Latin American and Caribbean Studies (CLACS), which took place from August 14 to 16, 2008, at Indiana University at Bloomington. This event brought together instructors, practitioners, activists, indigenous leaders, scholars, and learners from around the globe, and was the first initiative of this scope in the world. It included research and pedagogy on the diverse languages and cultures of indigenous populations in Latin America and the Caribbean

A Genetic-Analysis Of Weakfish Cynoscion-Regalis Stock Structure Along The Mid-Atlantic Coast

To investigate the genetic basis of stock structure of the weakfish Cynoscion regalis, a total of 370 individuals was collected from four geographic sites along the mid-Atlantic coast of the United States over a period of 4 years. Restriction fragment length polymorphism (RFLP) analysis of weakfish mitochondrial DNA, employing either 6 or 13 restriction endonucleases, demonstrated a low level of intraspecific mtDNA variation, with a mean nucleotide sequence divergence of 0.13% for the pooled samples. The common mtDNA genotype occurred at a frequency of 0.91-0.96 in all samples, and no significant heterogeneity was found among samples in the occurrence of the common mtDNA genotype or rare variants. The lack of spatial partitioning of rare mtDNA genotypes among collection sites suggests considerable gene flow along the mid-Atlantic coast. Together these data are consistent with the hypothesis that weakfish comprise a single gene pool, and indicate that the fishery should be managed as a single, interdependent unit

Effects of Amphetamine on Striatal Dopamine Release, Open-Field Activity, and Play in Fischer 344 and Sprague–Dawley Rats

Previous work from our laboratories has shown that juvenile Fischer 344 (F344) rats are less playful than other strains and also appear to be compromised in dopamine (DA) functioning. To determine whether the dysfunctional play in this strain is associated with deficits in the handling and delivery of vesicular DA, the following experiments assessed the extent to which F344 rats are differentially sensitive to the effects of amphetamine. When exposed to amphetamine, striatal slices obtained from F344 rats showed a small increase in unstimulated DA release when compared with slices from Sprague–Dawley rats; they also showed a more rapid high K+-mediated release of DA. These data provide tentative support for the hypothesis that F344 rats have a higher concentration of cytoplasmic DA than Sprague–Dawley rats. When rats were tested for activity in an open field, F344 rats presented a pattern of results that was consistent with either an enhanced response to amphetamine (3 mg/kg) or a more rapid release of DA (10 mg/kg). Although there was some indication that amphetamine had a dose-dependent differential effect on play in the two strains, play in F344 rats was not enhanced to any degree by amphetamine. Although these results are not consistent with our working hypothesis that F344 rats are less playful because of a deficit in vesicular release of DA, they still suggest that this strain may be a useful model for better understanding the role of DA in social behavior during the juvenile period

Stock Structure Of The Bluefish Pomatomus-Saltatrix Along The Mid-Atlantic Coast

Restriction-fragment length polymorphism analysis of mitochondrial DNA (mtDNA) was used to investigate the genetic basis of stock structure of the bluefish Pomatomus saltatrix along the U. S. mid-Atlantic coast, and to determine the degree of genetic differentiation between mid-Atlantic bluefish and Australian conspecifics. A total of 472 young-of-the-year (YOY) and yearling bluefish collected in New Jersey, Virginia, and North Carolina over a period of 3 years, and 19 YOY bluefish collected in New South Wales, Australia were analyzed with 9 informative restriction endonucleases. Despite considerable mtDNA variation within samples of U.S. mid-Atlantic bluefish, no significant genetic differentiation was detected among spring-spawned and summer-spawned (YOY) bluefish, YOY and yearling bluefish from different geographic locations along the mid-Atlantic coast, or yearling bluefish collected at the same location in different years. Mid-Atlantic bluefish differed from their Australian conspecifics by three or more restriction site differences, or a mean nucleotide sequence divergence of 1.96%. In addition, Australian bluefish demonstrated greatly reduced levels of mtDNA variation relative to the mid-Atlantic samples. The results of this study suggest that bluefish along the mid-Atlantic coast comprise a single genetic stock and that significant differentiation occurs among geographically disjunct populations of this widely distributed marine fish

Elemental concentrations in the seed of mutants and natural variants of Arabidopsis thaliana grown under varying soil conditions

Peer reviewedPublisher PD

What the disjunctivist is right about

There is a traditional conception of sensory experience on which the experiences one has looking at, say, a cat could be had by someone merely hallucinating a cat. Disjunctivists take issue with this conception on the grounds that it does not enable us to understand how perceptual knowledge is possible. In particular, they think, it does not explain how it can be that experiences gained in perception enable us to be in ‘cognitive contact’ with objects and facts. I develop this chal- lenge to the traditional conception and then show that it is possible to accommo- date an adequate account of cognitive contact in keeping with the traditional conception. One upshot of the discussion is that experiences do not bear the explanatory burden placed upon them by disjunctivists