61 research outputs found
Aspects of Hopi grammar.
Thesis. 1978. Ph.D.--Massachusetts Institute of Technology. Dept. of Linguistics and Philosophy.MICROFICHE COPY AVAILABLE IN ARCHIVES AND HUMANITIES.Bibliography: leaves 355-356.Ph.D
The implications of the regional haze rule on renewable and wind energy development on Native American lands in the west: Working paper series--02-21
A study conducted at Northern Arizona University investigated the barriers and opportunities facing Native American tribes in the west when considering development of their renewable energy resources in order to reduce regional haze. This paper summarizes some of the findings of that work with special attention to wind energy. Background information is presented concerning the regional haze rule and the western regional air partnership, and some of the circumstances surrounding development of tribal energy resources. An assessment of tribal energy issues revealed that many Native American tribes are interested in developing their renewable resources. However, this development should occur within the context of maintaining and strengthening their cultural, social, economic, and political integrity. Furthermore, it is shown that Native American lands possess an abundant wind resource. A list of potential actions in which tribes may participate prior to or during development of their wind or renewable resources is provided
Cyclin L1 (CCNL1) gene alterations in human head and neck squamous cell carcinoma
We evaluated the expression and amplification of cyclin L1 (CCNL1) gene, a potential oncogene localised in the commonly amplified 3q25–28 region, in human head and neck squamous cell carcinomas (HNSCCs). Overexpression was observed in 55 out of 96 cases (57%) and amplification in nine out of 35 tumours (26%) with no relationships to the clinico-pathological parameters. The Cyclin L1 antibody we developed labels nuclear speckles in tumour cells compatible with a role for CCNL1 in RNA splicing
Discovering functional modules by identifying recurrent and mutually exclusive mutational patterns in tumors
<p>Abstract</p> <p>Background</p> <p>Assays of multiple tumor samples frequently reveal recurrent genomic aberrations, including point mutations and copy-number alterations, that affect individual genes. Analyses that extend beyond single genes are often restricted to examining pathways, interactions and functional modules that are already known.</p> <p>Methods</p> <p>We present a method that identifies functional modules without any information other than patterns of recurrent and mutually exclusive aberrations (RME patterns) that arise due to positive selection for key cancer phenotypes. Our algorithm efficiently constructs and searches networks of potential interactions and identifies significant modules (RME modules) by using the algorithmic significance test.</p> <p>Results</p> <p>We apply the method to the TCGA collection of 145 glioblastoma samples, resulting in extension of known pathways and discovery of new functional modules. The method predicts a role for <it>EP300 </it>that was previously unknown in glioblastoma. We demonstrate the clinical relevance of these results by validating that expression of <it>EP300 </it>is prognostic, predicting survival independent of age at diagnosis and tumor grade.</p> <p>Conclusions</p> <p>We have developed a sensitive, simple, and fast method for automatically detecting functional modules in tumors based solely on patterns of recurrent genomic aberration. Due to its ability to analyze very large amounts of diverse data, we expect it to be increasingly useful when applied to the many tumor panels scheduled to be assayed in the near future.</p
Associations between cigarette smoking and mitochondrial DNA abnormalities in buccal cells
DNA alterations in mitochondria are believed to play a role in carcinogenesis and are found in smoking-related cancers. We sought to replicate earlier findings for the association of smoking with increased mitochondrial DNA (mtDNA) content in buccal cells and further hypothesized that there would be an increased number of somatic mtDNA mutations in smokers. Buccal cells and blood lymphocytes were studied from 42 healthy smokers and 30 non-smokers. Temporal temperature gradient electrophoresis screening and sequencing was used to identify mtDNA mutations. The relative mtDNA content was determined by real-time polymerase chain reaction. Assuming that mtDNA in lymphocytes represents the inherited sequence, it was found that 31% of smokers harbored at least one somatic mtDNA mutation in buccal cells with a total of 39 point mutations and 8 short deletions/insertions. In contrast, only 23% of non-smokers possessed mutations with a total of 10 point mutations and no insertions/deletions detected. mtDNA somatic mutation density was higher in smokers (0.68/10 000 bp per person) than in non-smokers (0.2/10 000 bp per person). There was a statistically significant difference in the pattern of homoplasmy and heteroplasmy mutation changes between smokers and non-smokers. Whereas non-smokers had the most mutations in D-loop region (70%), smokers had mutations in both messenger RNA encoding gene (36%) and D-loop region (49%). The mean ratio of buccal cells to lymphocytes of mtDNA content in smokers was increased (2.81) when compared with non-smokers (0.46). These results indicate that cigarette smoke exposure affects mtDNA in buccal cells of smokers. Additional studies are needed to determine if mitochondrial mutation assays provide new or complementary information for estimating cigarette smoke exposure at the cellular level or as a cancer risk biomarker
Integrated analysis of DNA copy number and gene expression microarray data using gene sets
Background: Genes that play an important role in tumorigenesis are expected to show association between DNA copy number and RNA expression. Optimal power to find such associations can only be achieved if analysing copy number and gene expression jointly. Furthermore, some copy number changes extend over larger chromosomal regions affecting the expression levels of multiple resident genes.
Integrating genetics and epigenetics in breast cancer: biological insights, experimental, computational methods and therapeutic potential
Reading: Victor Masayesva, Jr.
In this audiovisual recording from March 18, 1999 as part of the 30th annual UND Writers Conference: “Expressing the Sacred,” Victor Masayesva, Jr. delivers a lecture at the North Dakota Museum of Art. Masayesva, Jr. discusses sacredness in Hopi culture, media, sacred ritual, and his film work. He also introduces a screening of Hopiit.
Introduced by Cynthia Lindquist
Panel: Politics and the Sacred
This audiovisual recording from March 19, 1999 as part of the 30th annual UND Writers Conference: “Expressing the Sacred” features Peter Matthiessen, Ruhama Veltfort, and Victor Masayesva, Jr. forming the panel “Politics and the Sacred.” The panelists discuss how their work engages with a political vision or call to action, the politics of religion, the consequences of traveling and ethnography, protecting environments, civilizations, and cultures, the role of religion in martial political states, and cultural respect.
Moderator: Scott Low
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