Genetics ◽  
1985 ◽  
Vol 111 (3) ◽  
pp. 517-554
Author(s):  
Laurence D Mueller ◽  
Lorraine G Barr ◽  
Francisco J Ayala

ABSTRACT We have obtained monthly samples of two species, Drosophila pseudoobscura and Drosophila persimilis, in a natural population from Napa County, California. In each species, about 300 genes have been assayed by electrophoresis for each of seven enzyme loci in each monthly sample from March 1972 to June 1975. Using statistical methods developed for the purpose, we have examined whether the allele frequencies at different loci vary in a correlated fashion. The methods used do not detect natural selection when it is deterministic (e.g., overdominance or directional selection), but only when alleles at different loci vary simultaneously in response to the same environmental variations. Moreover, only relatively large fitness differences (of the order of 15%) are detectable. We have found strong evidence of correlated allele frequency variation in 13-20% of the cases examined. We interpret this as evidence that natural selection plays a major role in the evolution of protein polymorphisms in nature.


The Condor ◽  
1930 ◽  
Vol 32 (1) ◽  
pp. 50-52
Author(s):  
Harold W. Clark
Keyword(s):  

Radiocarbon ◽  
2014 ◽  
Vol 56 (1) ◽  
pp. 333-339
Author(s):  
Tsim D Schneider ◽  
John Holson ◽  
Lori D Hager ◽  
Samantha S Schell ◽  
Lucian N Schrader

This article presents a set of accelerator mass spectrometry (AMS) radiocarbon dates derived from human bone within burial contexts at CA-NAP-399 in Napa County, California, USA.


2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 47-47
Author(s):  
Jarmin Yeh ◽  
Pi-Ju Liu ◽  
Jacques Perkins ◽  
Andrew Butler ◽  
Sara Stratton ◽  
...  

Abstract The historical lack of outcomes-related data in Adult Protective Services (APS) has affected funding coming to the program. Without data quantifying the effectiveness of APS services, policymakers have been unable to justify budget increases to improve wages for workers or professionalize the field. For the first time in APS history, the U.S. Administration for Community Living sponsored a pilot project to implement a novel evidence-based assessment tool into APS electronic systems, called the Identification, Services, and Outcomes (ISO) Matrix. The goal was to improve APS’ ability to reduce harm of abuse and neglect and maintain client’s independence to live in the community. APS workers in San Francisco and Napa Counties were trained and phased into using the ISO Matrix over a six-month implementation period. This poster presents findings from six focus groups conducted between February 13 and March 28, 2019, with 34 San Francisco and Napa County APS workers and supervisors. Utilizing semi-structured, in-depth interviewing techniques, APS workers and supervisors expressed their views and experiences. Facilitators and barriers of implementing the ISO Matrix were assessed and opportunities for improvements were identified. Findings revealed a tension between their hopefulness that the ISO Matrix could modernize APS data-tracking and yield evidence of improved client outcome to bolster the field, and their frustrations about new burdens the ISO Matrix placed on their labor and workflow. Understanding frontline perspectives of APS workers and supervisors has practical and policy implications for adopting the ISO Matrix in other counties and states across the U.S.


Author(s):  
Rune Storesund

This paper presents a forensic evaluation of an earthwork grading dispute between a grading contractor (plaintiff) and property owner (defendant) associated with construction of an approach driveway and hill-side cut for a new residential property. The plaintiff’s allegations were that “changed conditions” had been encountered through the presence of a landslide and/or geologic fault. These conditions resulted in schedule delays and increased costs. Finally, the plaintiff alleged breach of contract after being terminated. The allega-tions were investigated through both on-site field reconnaissance and desktop studies. The forensic analyses found no basis for the changed conditions claims. The case was tried in Napa County California Superior Courts via bench trial. The judge’s decision mirrored the findings of the forensic analyses.


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