The Effect of Remote Storage on the Use of Books

Remote storage has become an increasingly popular response to the overcrowding of open-stack areas in academic libraries. While many institutions have chosen this option and there has been much discussion about administration of such facilities, its impact on patrons is still unclear. Some potential user limitations of remote storage considered by this study are delayed retrieval, loss of browsability, and the barrier of making a retrieval request. The current study was conducted at the Chemistry and Art Libraries at the University of North Carolina at Chapel Hill. It observed the use of materials that had been selected for transfer to remote storage, where half of these selected materials were transferred to remote storage and the other half remained on open library stacks. After an average of approximately two months of observation, none of the selected books had circulated, suggesting that their selection for remote storage was appropriate

Behavioral Economic Measurement of Cigarette Demand: A Descriptive Review of Published Approaches to the Cigarette Purchase Task

The cigarette purchase task (CPT) is a behavioral economic method for assessing demand for cigarettes. Growing interest in behavioral correlates of tobacco use in clinical and general populations as well as empirical efforts to inform policy has seen an increase in published articles employing the CPT. Accordingly, an examination of the published methods and procedures for obtaining these behavioral economic metrics is timely. The purpose of this investigation was to provide a review of published approaches to using the CPT. We searched specific Boolean operators ([“behavioral economic” AND “purchase task”] OR [“demand” AND “cigarette”]) and identified 49 empirical articles published through the year 2018 that reported administering a CPT. Articles were coded for participant characteristics (e.g., sample size, population type, age), CPT task structure (e.g., price framing, number and sequence of prices; vignettes, contextual factors), and data analytic approach (e.g., method of generating indices of cigarette demand). Results of this review indicate no standard approach to administering the CPT and underscore the need for replicability of these behavioral economic measures for the purpose of guiding clinical and policy decisions

Research Support Services for the Field of the Indigenous Studies

Ithaka S+R has organized a series of in-depth qualitative studies to investigate the needs of researchers in specific disciplines (e.g. Chemistry, Art History, Asian Studies). This paper is the local report of the Haskell Indian Nations University and the University of Kansas research team as part of a larger project involving 11 teams of librarians from the United States and Canada.Indigenous Studies (IS) is an interdisciplinary and multidisciplinary field. The research practices and information needs of scholars within IS echo its interdisciplinary and multidisciplinary nature. While Indigenous Research Methodologies is represented in the academic literature, the information needs of IS scholars needs further investigation. Therefore, a team of four librarians interviewed six Indigenous Studies scholars at Haskell Indian Nations University (Haskell) and the University of Kansas (KU) to investigate the research practices and library needs of Indigenous scholars at both institutions as part of a larger project coordinated by Ithaka S+R. The project revealed four prominent themes that emerged in discussions with scholars: knowledge, connection, journey, and giving back. The report explores these themes through the lens of Library and Information Science and concludes with recommendations for improving partnerships between the libraries and Indigenous scholars at Haskell and KU.This research was funded by KU Libraries and supported by Tommaney Library and KU Libraries through sponsorship of Ithaka S+R

Distinct Genetic Influences on Cortical Surface Area and Cortical Thickness

Neuroimaging studies examining the effects of aging and neuropsychiatric disorders on the cerebral cortex have largely been based on measures of cortical volume. Given that cortical volume is a product of thickness and surface area, it is plausible that measures of volume capture at least 2 distinct sets of genetic influences. The present study aims to examine the genetic relationships between measures of cortical surface area and thickness. Participants were men in the Vietnam Era Twin Study of Aging (110 monozygotic pairs and 92 dizygotic pairs). Mean age was 55.8 years (range: 51–59). Bivariate twin analyses were utilized in order to estimate the heritability of cortical surface area and thickness, as well as their degree of genetic overlap. Total cortical surface area and average cortical thickness were both highly heritable (0.89 and 0.81, respectively) but were essentially unrelated genetically (genetic correlation = 0.08). This pattern was similar at the lobar and regional levels of analysis. These results demonstrate that cortical volume measures combine at least 2 distinct sources of genetic influences. We conclude that using volume in a genetically informative study, or as an endophenotype for a disorder, may confound the underlying genetic architecture of brain structure

Reduced Occipital and Prefrontal Brain Volumes in Dysbindin-Associated Schizophrenia

A three-marker C–A–T dysbindin haplotype identified by Williams et al (PMID: 15066891) is associated with increased risk for schizophrenia, decreased mRNA expression, poorer cognitive performance, and early sensory processing deficits. We investigated whether this same dysbindin risk haplotype was also associated with structural variation in the gray matter volume (GMV). Using voxel-based morphometry, whole-volume analysis revealed significantly reduced GMVs in both the right dorsolateral prefrontal and left occipital cortex, corresponding to the behavioral findings of impaired spatial working memory and EEG findings of impaired visual processing already reported. These data provide important evidence of the influence of dysbindin risk variants on brain structure, and suggest a possible mechanism by which disease risk is being increased