981 research outputs found
DEFINE BILLET DESCRIPTIONS AND SKILL SETS THAT ARE NEEDED TO PERFORM LEAD SYSTEM INTEGRATION (LSI) FUNCTIONS
In 2008, Congress passed Public Law 110-181, which directed the Secretary of Defense to properly size and train the Department of Defense workforce to do more inherently governmental functions. There was no training path established to support this law. Therefore, the Naval Postgraduate School (NPS) established such training for the functional area of Lead System Integrator (LSI). The LSI area of study has been conducted at NPS for years through research and cohort classwork. This thesis is a continuation of the Lead System Integrator Cohort 4 Final Report, which did not address the LSI-based billets needed for the System of Systems Mission Assurance phase (more commonly known as the “fielding of the system”) for the warfighter. The goal of this research is to discover whether a reference exists for project/program managers to properly staff their LSI teams through expanded roles and responsibilities with proper Knowledge, Skills, and Abilities (KSAs). Through comparison and analysis of organizational charts, traditional NAVAIR job titles, and known LSI functional areas, this thesis tries to define position descriptions and KSAs that are needed to perform an LSI function. The study used four different program offices that state they operate projects as LSI inside their program offices.Civilian, Department of the NavyApproved for public release. Distribution is unlimited
Observational and numerical study of mountain boundary-layer flow, An
June, 1982.Includes bibliographical references.Research supported by the National Science Foundation ATM-8113082.The South Park field project was also sponsored in part by U.S. Dept. of the Interior, Bureau of Reclamation 7-07-83-V0006
Molecular phylogeny of brachiopods and phoronids based on nuclear-encoded small subunit ribosomal RNA gene sequences
Brachiopod and phoronid phylogeny is inferred from SSU rDNA sequences of 28 articulate and nine inarticulate brachiopods, three phoronids, two ectoprocts and various outgroups, using gene trees reconstructed by weighted parsimony, distance and maximum likelihood methods. Of these sequences, 33 from brachiopods, two from phoronids and one each from an ectoproct and a priapulan are newly determined. The brachiopod sequences belong to 31 different genera and thus survey about 10% of extant genus-level diversity. Sequences determined in different laboratories and those from closely related taxa agree well, but evidence is presented suggesting that one published phoronid sequence (GenBank accession UO12648) is a brachiopod-phoronid chimaera, and this sequence is excluded from the analyses. The chiton, Acanthopleura, is identified as the phenetically proximal outgroup; other selected outgroups were chosen to allow comparison with recent, non-molecular analyses of brachiopod phylogeny. The different outgroups and methods of phylogenetic reconstruction lead to similar results, with differences mainly in the resolution of weakly supported ancient and recent nodes, including the divergence of inarticulate brachiopod sub-phyla, the position of the rhynchonellids in relation to long- and short-looped articulate brachiopod clades and the relationships of some articulate brachiopod genera and species. Attention is drawn to the problem presented by nodes that are strongly supported by non-molecular evidence but receive only low bootstrap resampling support. Overall, the gene trees agree with morphology-based brachiopod taxonomy, but novel relationships are tentatively suggested for thecideidine and megathyrid brachiopods. Articulate brachiopods are found to be monophyletic in all reconstructions, but monophyly of inarticulate brachiopods and the possible inclusion of phoronids in the inarticulate brachiopod clade are less strongly established. Phoronids are clearly excluded from a sister-group relationship with articulate brachiopods, this proposed relationship being due to the rejected, chimaeric sequence (GenBank UO12648). Lineage relative rate tests show no heterogeneity of evolutionary rate among articulate brachiopod sequences, but indicate that inarticulate brachiopod plus phoronid sequences evolve somewhat more slowly. Both brachiopods and phoronids evolve slowly by comparison with other invertebrates. A number of palaeontologically dated times of earliest appearance are used to make upper and lower estimates of the global rate of brachiopod SSU rDNA evolution, and these estimates are used to infer the likely divergence times of other nodes in the gene tree. There is reasonable agreement between most inferred molecular and palaeontological ages. The estimated rates of SSU rDNA sequence evolution suggest that the last common ancestor of brachiopods, chitons and other protostome invertebrates (Lophotrochozoa and Ecdysozoa) lived deep in Precambrian time. Results of this first DNA-based, taxonomically representative analysis of brachiopod phylogeny are in broad agreement with current morphology-based classification and systematics and are largely consistent with the hypothesis that brachiopod shell ontogeny and morphology are a good guide to phylogeny
Photographic Encounters in the Philippines, 1898 - 1910
At the end of the Spanish-American War, Spain ceded the Philippine Islands to the United States. The U.S. engaged in a three-year war against the Filipinos, who fought fiercely for their independence, and in 1902 it took possession of a country half a world away
Training and Requirements of Indianapolis Teachers 1821-1935
This dissertation endeavors to show the changes that have taken place in teachers and in teaching in Indianapolis since the days of its first schoolhouse
Commitment to Breastfeeding in the Context of Phenylketonuria
Objective: To describe the meaning and importance of breastfeeding to mothers of infants with phenylketonuria (PKU).
Design: Qualitative description.
Setting: Mothers from the United States and Canada were recruited from the PKU Listserv and interviewed by telephone.
Participants: Ten breastfeeding mothers with infants who had PKU and were younger than age 36 months.
Methods: Mothers’ thoughts, decisions, and experiences of breastfeeding their infants with PKU were collected through telephone interviews. Interviews were transcribed verbatim, and data were analyzed using thematic descriptive analysis in the context of PKU.
Results: Participants felt that that breastfeeding an infant with PKU was the healthiest choice and was therefore worth the labor. These women believed that this was what a loving mother would choose. As they continued to breastfeed their infants after diagnosis, the views of the participants changed. Initially they saw PKU as a disorder and felt that their infants were ill; later they felt that their infants were healthy in spite of PKU. Normal could mean a breastfeeding infant with PKU.
Conclusion: Findings demonstrate the importance mothers attribute to breastfeeding and their willingness to invest considerable effort to breastfeed. Health care providers working with these mothers should help them strategize for success
Induced Modifications in Pigment Development in Spelerpes Larvae (Preliminary Paper)
Author Institution: From the Station for Experimental Evolution, The Carnegie Institution of Washingto
Comparative study of visual performance with tinted soft contact lenses vs. clear soft contact lenses and tinted spectacles under bright outdoor conditions; Phase II
Background: Research has clearly shown the advantages of performance tinted CL wear with regard to various measures of objective and subjective responses under various lighting conditions. The current study expanded upon these results.
Methods: Subjects were 38 non-presbyopic emmetropes or slight ametropes with distance Snellen acuity of 20/20 or better while wearing -0.50 D spherical Acuvue 2 CLs. Measurements of 6m tachistoscopic stereoacuity and variable distance timed and tachistoscopic texture gradient recognition were obtained with subjects wearing clear CLs, tinted spectacles, and SportSight CLs. Lens modality and test sequence were randomized.
Results: Stereoacuity results showed no statistically significant difference in stereolocalization when subjects were wearing clear CLs, SportSight CLs, or tinted spectacles. Texture gradient results using timed and tachistoscopic presentations demonstrated that it was more difficult for subjects to correctly identify the seam orientation at farther distances than nearer distances, and that subjects took more time to try to identify distant target orientation versus near target orientation. In addition, tachistoscopic presentations were not found to be significant with regard to correctness of responses at any distance with any lens modality. Subjective data indicated more physical comfort with either CL modality instead of tinted spectacles. SportSight CLs were also found to be the most visually comfortable modality, followed by tinted spectacles and then clear CLs. Furthermore, a general trend indicated that subjects felt they were able to perform best while wearing the SportSight CLs. This may partially be due to the fact that subjects noted fewer perceptions of stray light with SportSight CLs than with the other modalities. Likewise, subjects reported an equal number of perceived reflections while wearing SportSight CLs and clear CLs but significantly more while wearing tinted spectacles.
Conclusion: Objective findings demonstrated that SportSight CLs provide similar performance with regard to distance depth perception and texture gradient recognition to tinted spectacles. Subjective data indicate that visual comfort of the SportSight CLs was superior to tinted spectacles and clear CLs. Additionally, a trend in subjective data demonstrated that the subjects perceived improved performance on the tests while wearing the SportSight CLs
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