Maryland Shared Open Access Repository
MD-SOAR is a shared digital repository platform for twelve colleges and universities in Maryland. It is currently funded by the University System of Maryland and Affiliated Institutions (USMAI) Library Consortium (usmai.org) and other participating partner institutions. MD-SOAR is jointly governed by all participating libraries, who have agreed to share policies and practices that are necessary and appropriate for the shared platform. Within this broad framework, each library provides customized repository services and collections that meet local institutional needs. Please follow the links below to learn more about each library's repository services and collections.
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Item type: Item , AUTOMATED GAGE BLOCK CALIBRATION(1989-05) Zimmerman, Jay Howard; Hood College Computer Science; Computer Science and Information TechnologyThis document describes the development of automated gage block calibration at the National Institute of Standards and Technology (NIST), formerly the National Bureau of Standards. The Gage Block Calibration System is one of enumerable calibration and related measurement services performed at NIST which include the calibration of standards, test of instruments, and certain interlaboratory testing programs. This system is an outcome of continuing program efforts to develop a measurement assurance process for calibrating gage blocks where test sets of gage blocks are measured against two NIST reference standard sets with control based upon the differences between the reference base and the transfer standard. Measurement sequences for executing the transfer with NIST and procedures for maintaining statistical control are presented with emphasis on characterizing parameters of the measurement process through use of a check standard.Item type: Item , Proteolytic Cleavages, Post-translational Modifications, and Microheterogeneity of HIV-1ₘₙ Gag Proteins(1992) Zipse, Michelle Andrea Bowers; Hood College Biology; Biomedical and Environmental ScienceThe Gag proteins of Human Immunodeficiency Virus Type 1 (MN isolate) were purified by reverse phase high pressure liquid chromatography. The complete amino acid sequence of each Gag protein was determined. Each protein was examined for post-translational modifications. The results show that gag precursor polyproteins are efficiently cleaved by the viral protease into six products designated p17, p24, p2, p7, pl and p6 and their order of occurrence in the precursor is p17-p24-p2-p7-pl-p6. Two amino acid sequence variants of the p17 Gag protein were observed. The major p17 form contained an isoleucine residue at position 34 and a valine residue at position 45. The minor p17 form contained a valine residue at position 34 and an isoleucine residue at position 45. Two variants of the p24 Gag protein were also observed. The major p24 form contained an alanine residue at position 86, whereas, the minor p24 form contained a valine residue at position 86. These two variants forms of the p17 and p24 Gag protein indicated that the gag proteins are derived from two closely related gag precursors. Approximately 50 to 60% of all the gag proteins are obtained from a single precursor. Approximately 20 to 30% of the total are derived from a second gag precursor. Data related to other gag precursors were also noted. Other amino acid differences observed for the p17 and p24 Gag protein are indicated in the text. The p1 protein differed from the predicted sequence at position 13 where a proline residue was observed and at position 14 where a glycine residue was observed. The other Gag proteins (p2, p6, and p7) purified were found to be identical to the nucleotide deduced amino acid sequence. A comparison of the most abundant gag precursor with the amino acid sequence deduced from the gag open reading frame of the MN provirus showed differences at a total of twelve positions. Post-translational modifications were observed on the p17 and the p24 Gag proteins. Greater than 90% of the total p17 protein was myristylated at its N-terminal. The data was consistent with two sites of phosphorylation on the p24 protein.Item type: Item , FAMILY STRUCTURE, FAMILY CONFLICT AND FAMILY COHESION AS PREDICTORS OF SELF-ESTEEM AND IMPULSIVITY IN COLLEGE STUDENTS(1988-12) Young, William F.; Hood College Psychology; PsychologyThe development of self-esteem is affected by many variables. Self report questionnaires were completed by 172 college students. The correlations between self-esteem, as measured by the Coopersmith Self-Esteem Inventory, and impulsivity, family structure, family conflict and family cohesion were-determined, (as well as the relation of such variables as age, sex, religious persuasion and the amount of time since parental separation where appropriate). The measures of family conflict and family cohesion were derived from other studies. No relationship was found between self-esteem and family structure, however, self-esteem correlated positively with family cohesion and negatively with family conflict. Impulsiveness and venturesomeness combine to make-up the I(7) impulsivity scale used in this study. Self-esteem and impulsiveness were negatively correlated with each other, and venturesomeness predicted higher self-esteem. In addition, impulsiveness showed a weak but positive correlation with venturesomeness indicating that these two variables may measure different aspects of impulsivity. These results support research on the relationship between family conflict, family cohesion and self-esteem, but contradict some of the research on the relationship between family structure and self-esteem.Item type: Item , DISTORTING THE IDEALS OF THE SIXTIES: THE MANSON FAMILY(2013-05) Young, Deborah Iorio; Hood College Arts and Humanities; HumanitiesItem type: Item , Remote Sensing Technologies Applied to Eradication Efforts of Purple Loosestrife (Lythrum salicaria)(2009-08) Young, Blake; Hood College Biology; Biomedical and Environmental SciencePurple Loosestrife (Lythrum salicaria) is an aquatic invasive plant found throughout the United States. The US Federal Aquatic Nuisance Species Task Force estimates that the management cost and lost forage value attributable to purple loosestrife is approximately $45 million per year, contributing significantly to the total annual impact of the invasive species problem in the US, which itself is estimated to be $100-200 billion. This project provides a qualitative evaluation of the effectiveness of remote sensing technologies and habitat suitability modeling in purple loosestrife management decision making. This work focuses on the southeast region of Lake Michigan in Wisconsin. I teamed with NASA scientists and natural resource managers with the Wisconsin Department of Natural Resources (DNR) and the Great Lakes Indian Fish and Wildlife Commission to gather presence/absence data for selected study sites in the study area. NASA's Invasive Species Forecasting System (ISFS) was then used to create habitat suitability maps for purple loosestrife in the selected areas. ISFS is a recently developed tool for regional habitat suitability modeling and decision support. The system uses NASA Earth observational data, environmental predictors, and stepwise logistical regression modeling techniques to produce habitat suitability maps for species of interest. Maps such as these have been shown to be helpful in a wide range of resource management decision processes. The ISFS technology and the habitat suitability maps it produces are evaluated in comparison to existing tools used by the Great Lakes Indian Fish and Wildlife Commission in their eradication planning and management decision making. The project introduces NASA technologies and NASA Earth observations into new applications within the Great Lakes Indian Fish and Wildlife Commission and lays the foundation for broader use of this approach in other state and federal agencies dealing with purple loosestrife. Perhaps most important, the project contributes to efforts to restore and maintain the ecological health of the Great Lakes.