994 resultados para Dynamically Linked Library
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Abstract Sexual selection theory posits that ornaments can signal the genetic quality of an individual. Eumelanin-based coloration is such an ornament and can signal the ability to cope with a physiological stress response because the melanocortin system regulates eumelanogenesis as well as physiological stress responses. In the present article, we experimentally investigated whether the stronger stress sensitivity of light than dark eumelanic individuals stems from differential regulation of stress hormones. Our study shows that darker eumelanic barn owl nestlings have a lower corticosterone release after a stressful event, an association, which was also inherited from the mother (but not the father) to the offspring. Additionally, nestlings sired by darker eumelanic mothers more quickly reduced experimentally elevated corticosterone levels. This provides a solution as to how ornamented individuals can be more resistant to various sources of stress than drab conspecifics. Our study suggests that eumelanin-based coloration can be a sexually selected signal of resistance to stressful events.
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Background: Aproximately 5–10% of cases of mental retardation in males are due to copy number variations (CNV) on the X chromosome. Novel technologies, such as array comparative genomic hybridization (aCGH), may help to uncover cryptic rearrangements in X-linked mental retardation (XLMR) patients. We have constructed an X-chromosome tiling path array using bacterial artificial chromosomes (BACs) and validated it using samples with cytogenetically defined copy number changes. We have studied 54 patients with idiopathic mental retardation and 20 controls subjects. Results: Known genomic aberrations were reliably detected on the array and eight novel submicroscopic imbalances, likely causative for the mental retardation (MR) phenotype, were detected. Putatively pathogenic rearrangements included three deletions and five duplications (ranging between 82 kb to one Mb), all but two affecting genes previously known to be responsible for XLMR. Additionally, we describe different CNV regions with significant different frequencies in XLMR and control subjects (44% vs. 20%). Conclusion:This tiling path array of the human X chromosome has proven successful for the detection and characterization of known rearrangements and novel CNVs in XLMR patients.
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The Iowa Commission of Libraries, the State Library’s governing board, convened the Library Services Task Force in August 2000. This group consisted of 46 Iowans from across the state, including librarians from all types of libraries, library trustees, legislators, members of Iowa Regional Library system (now called Library Service Areas) and Area Education Agencies, and citizens. Their mission was to make recommendations to the Commission on positioning libraries to effectively and efficiently meet the future needs of Iowans. Needs and expectations of Iowa Library customers and funding authorities were identified and examined by the Task Force, and are reflected in its recommendations. The Commission received the Task Force recommendations in December 2000, carefully studied them, solicited input from the Iowa library community, and with a few changes, forwarded the recommendations to the Governor and the Iowa General Assembly. These recommendations are now known as Iowa Commission of Libraries priorities and serve as a blueprint for future development of the Iowa library system.
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The Iowa Commission of Libraries, the State Library’s governing board, convened the Library Services Task Force in August 2000. This group consisted of 46 Iowans from across the state, including librarians from all types of libraries, library trustees, legislators, members of Iowa Regional Library system (now called Library Service Areas) and Area Education Agencies, and citizens. Their mission was to make recommendations to the Commission on positioning libraries to effectively and efficiently meet the future needs of Iowans. Needs and expectations of Iowa Library customers and funding authorities were identified and examined by the Task Force, and are reflected in its recommendations. The Commission received the Task Force recommendations in December 2000, carefully studied them, solicited input from the Iowa library community, and with a few changes, forwarded the recommendations to the Governor and the Iowa General Assembly. These recommendations are now known as Iowa Commission of Libraries priorities and serve as a blueprint for future development of the Iowa library system.
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As a guide for librarians, library policy makers and the local level, community leaders, local and state policy makers, and library customers across the state, these recommendations create a vision of libraries as friendly, welcoming places where Iowans can access inform ation in person or on-lin e, ob tain, an d use ideas and truste d info rmatio n tha t will enhance their quality of life. This report specifies the steps to achieving this vision and creates an environment of opportunity to m ove s teadily toward the new system.
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Vision: Each Iowans will have equal access to information and ideas in order to participate knowledgeably and productively in a democratic society and to lead an enriched life through lifelong learning. Mission: Helping libraries provide the best possible service to Iowans.
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The pocket digest for public library statistics highlights pertinent information about public libraries in Iowa.
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The pocket digest for public library statistics highlights pertinent information about public libraries in Iowa.
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The pocket digest for public library statistics highlights pertinent information about public libraries in Iowa.
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Agency Performance Report
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"In Service to Iowa : Public Library Measures of Quality, 4th edition" is the manual for the Accreditation and Standards program of the State Library of Iowa.
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Public library statistics are taken from the annual survey. The statistics are used at the local, regional, state, and national levels to compare library performance, justify budget requests, track library data over time, assist in planning and evaluation, and provide valuable information for grants and other library programs. The annual survey collects current information from 543 public libraries about public service outlets, holdings, staffing, income, expenditures, circulation, services, and hours open. Furthermore, it helps provide a total picture of libraries on a state and nationwide basis. This report is authorized by law (Iowa Code 256.51 (H)). Each of the 50 states collects public library information according to guidelines established by the Federal State Cooperative System for public library data (FSCS). The information contained in the Iowa Public Library Statistics is based on definitions approved by FSCS. For additional information, contact Gerry Rowland, State Library, gerry.rowland@lib.state.ia.us; 1-800-248-4483.
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Public library statistics are taken from the annual survey. The statistics are used at the local, regional, state, and national levels to compare library performance, justify budget requests, track library data over time, assist in planning and evaluation, and provide valuable information for grants and other library programs. The annual survey collects current information from 543 public libraries about public service outlets, holdings, staffing, income, expenditures, circulation, services, and hours open. Furthermore, it helps provide a total picture of libraries on a state and nationwide basis. This report is authorized by law (Iowa Code 256.51 (H)). Each of the 50 states collects public library information according to guidelines established by the Federal State Cooperative System for public library data (FSCS). The information contained in the Iowa Public Library Statistics is based on definitions approved by FSCS. For additional information, contact Gerry Rowland, State Library, gerry.rowland@lib.state.ia.us; 1-800-248-4483.
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Digital holographic microscopy (DHM) is a noninvasive optical imaging technique that provides quantitative phase images of living cells. In a recent study, we showed that the quantitative monitoring of the phase signal by DHM was a simple label-free method to study the effects of glutamate on neuronal optical responses (Pavillon et al., 2010). Here, we refine these observations and show that glutamate produces the following three distinct optical responses in mouse primary cortical neurons in culture, predominantly mediated by NMDA receptors: biphasic, reversible decrease (RD) and irreversible decrease (ID) responses. The shape and amplitude of the optical signal were not associated with a particular cellular phenotype but reflected the physiopathological status of neurons linked to the degree of NMDA activity. Thus, the biphasic, RD, and ID responses indicated, respectively, a low-level, a high-level, and an "excitotoxic" level of NMDA activation. Moreover, furosemide and bumetanide, two inhibitors of sodium-coupled and/or potassium-coupled chloride movement strongly modified the phase shift, suggesting an involvement of two neuronal cotransporters, NKCC1 (Na-K-Cl) and KCC2 (K-Cl) in the genesis of the optical signal. This observation is of particular interest since it shows that DHM is the first imaging technique able to monitor dynamically and in situ the activity of these cotransporters during physiological and/or pathological neuronal conditions.
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Quarterly State Library Update for patrons.