For accurate dose assessment due to radon progeny inhalation, its size distribution is one of the most important physical parameters from the viewpoint of the dosimetric approach. A typical size distribution of the radon progeny is bimodal with unattached and attached fraction. For measuring the activity-weighted size distribution of unattached fraction, a new GSA consisted of four fine stainle...

doi: 10.1130/G33725.1 2012;40;1123-1126 Geology Carolyn M. Ernst, David M. Blair, Timothy A. Goudge and Paul K. Byrne Thomas R. Watters, Sean C. Solomon, Christian Klimczak, Andrew M. Freed, James W. Head, basins on Mercury Extension and contraction within volcanically buried impact craters and Email alerting services articles cite this article to receive free e-mail alerts when new www.gsapubs...

Predicting the grain yield performance of three-way hybrids is challenging. Three-way crosses are relevant for hybrid breeding in barley ( L.) and maize ( L.) adapted to East Africa. The main goal of our study was to implement and evaluate genome-wide prediction approaches of the performance of three-way hybrids using data of single-cross hybrids for a scenario in which parental lines of the th...

E-mail alerting services articles cite this article to receive free e-mail alerts when new www.gsapubs.org/cgi/alerts click Subscribe to subscribe to Geology www.gsapubs.org/subscriptions/index.ac.dtl click Permission request to contact GSA http://www.geosociety.org/pubs/copyrt.htm#gsa click official positions of the Society. citizenship, gender, religion, or political viewpoint. Opinions prese...

The objectives of this study were to analyze the trend of within-breed genetic diversity and identify major causes leading to loss of genetic diversity in Guernsey breed in three countries. Pedigree files of Canadian (GCN), South African (GSA) and American (GUS) Guernsey populations containing 130 927, 18 593 and 1 851 624 records, respectively, were analyzed. Several parameters derived from th...

Automatic voltage regulator; Gravitational search algorithm; Load tracking performance; Opposite number; Optimization; Sugeno fuzzy logic Abstract The design and performance analysis of a Sugeno fuzzy logic (SFL) controller for an autonomous power system model is presented in this paper. In gravitational search algorithm (GSA), the searcher agents are collection of masses and their interactions...

doi: 10.1130/G33006.1 2012;40;675-678 Geology M.T. Gonzalez-Muñoz, F. Martinez-Ruiz, F. Morcillo, J.D. Martin-Ramos and A. Paytan barite formation Precipitation of barite by marine bacteria: A possible mechanism for marine Email alerting services articles cite this article to receive free e-mail alerts when new www.gsapubs.org/cgi/alerts click Subscribe to subscribe to Geology www.gsapubs.org/s...

doi: 10.1130/G30188A.1 2009;37;843-846 Geology Alistair J. McGowan and Gareth J. Dyke estimates from field data and fossil shops A surfeit of theropods in the Moroccan Late Cretaceous? Comparing diversity Email alerting services articles cite this article to receive free e-mail alerts when new www.gsapubs.org/cgi/alerts click Subscribe to subscribe to Geology www.gsapubs.org/subscriptions/ clic...

Root and shoot branches are major determinants of plant form and critical for the effective capture of resources below and above ground. These branches are often maintained at specific angles with respect to gravity, known as gravitropic set point angles (GSAs). We have previously shown that the mechanism permitting the maintenance of non-vertical GSAs is highly auxin-dependent and here we inve...