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Research Guides

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FAQ

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How can I search multiple databases at the same time?
Yes, there is a way to search multiple databases at one time. Generally, we recommend doing a search on the library's homepage (https://www.lib.lsu.edu/) using the Discovery search box when just starting out with your research or class assignment. It functions like a Google search in that it searches across many of our databases and the library catalog. Finally, if you prefer to meet with a research librarian who can give you a much deeper dive into searching and using our resources, you can set up an appointment with one. Here (https://www.lib.lsu.edu/staff?field_staff_type=2&search_api_staff=&fiel…) is a list of our research librarians organized by their subject areas. We especially recommend that faculty and graduate students contact their subject specialists when working on major research projects. Answered by: Electronic Resources
Where is the Center located?
The T. Harry Williams Center for Oral History is on the 2nd floor of the Hill Memorial Library. From the stairs: Go up the left staircase, take a left through the double doors, and walk straight through Quiet Study Space Room 201. The Center offices are located in the back right corner of this large room. From the elevators: Take the elevator up to 2, take a right through the double doors, and proceed to walk straight through the Quiet Study Space, Rm 201. The Center offices are in the back right corner of this large room. Answered by: Jennifer Cramer
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Database Listing

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Foreign Office Files for the Middle East
This collection is an essential resource for understanding the events in the Middle East during the 1970s.
It addresses the policies, economies, political relationships and significant events of every major Middle East power. Conflicts such as the Arab-Israeli War, the Lebanese Civil War and the Iranian Revolution are examined in detail, as are the military interventions and peace negotiations carried out by regional and foreign powers like the United States and Russia.
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Staff

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Discovery

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The association between physical activity and depression among weekend catch-up sleepers: results from NHANES 2021–2023.
Background: Depression is a prevalent disorder with significant health impacts. Physical activity is known to protect against depression, but its effects may vary in populations with disrupted sleep patterns, such as weekend catch-up sleepers, which refers to participants who sleep longer on weekends than on weekdays. This study examines the dose-response relationship between physical activity and depression in this population. Methods: Data from 1,906 participants in the National Health and Nutrition Examination Survey (2021–2023) were analyzed. Physical activity was measured in MET-minutes per week, and depression was assessed using the PHQ-9. Multivariate linear regression, restricted cubic spline, and two-part linear regression models were employed. Results: In the adjusted model, physical activity showed a negative trend with depression, though this association did not reach statistical significance in the fully adjusted model. Stratified analyses revealed stronger associations in women (OR = 0.86, 95% CI: 0.75, 0.99, P = 0.0329) and individuals aged 40–60 years (OR = 0.79, 95% CI: 0.65, 0.97, P = 0.0237). A threshold effect was observed, with physical activity below 2.48 MET-min/1000-wk showing a negative association with depression (OR = 0.69, 95% CI: 0.56, 0.85, P = 0.0006). Beyond this threshold, the relationship changed. Conclusion: A nonlinear relationship between physical activity and depression was identified in weekend catch-up sleepers, with moderate activity levels (2.48 MET-min/1000-wk) offering the greatest mental health benefits, particularly in women and individuals aged 40–60 years. Clinical trial number: Not applicable. [ABSTRACT FROM AUTHOR]
ASSESSMENT OF COMMERCIAL STOCKS AND FORECAST FOR THE CATCH OF FISH OF LEUCISCIDAE FAMILY IN THE DNIPRO RESERVOIR FOR 2026. ОЦІНКА ПРОМИСЛОВИХ ЗАПАСІВ І ПРОГНОЗ ВИЛОВУ РИБ РОДИНИ ЯЛЕЦЕВІ (LEUCISCIDAE) ДНІПРОВСЬКОГО ВОДОСХОВИЩА НА 2026 РІК.
Purpose. To investigate the long-term dynamics of commercial catches of Leuciscidae in the Dnipro Reservoir and to determine sustainable catch limits as an aquatic bioresource. Methodology. The study was conducted in 2024–2025 at three commercial fishing areas of the Dnipro Reservoir (central part, lower part, Samara Bay), which differed in hydrology, ecology, and the level of human impact. Classical ichthyological methods were used. The study objects were members of the family Leuciscidae: common bream, chub, asp, roach, silver bream, blue bream, sabrefish, rudd, white-eye bream, vimba, and bleak. The analysis included species composition of commercial catches, age and size structure of fish populations, condition factors, catch dynamics over long-term series, and official commercial statistics (2014–2024). Findings. It was found that Leuciscidae species account for 54.1% of total catches in the Dnipro Reservoir cascade, with common bream, roach, and bleak being the main commercial species. Populations of these species are characterized by stable abundance and biomass. Based on biological and fishing parameters, fish stocks and catch limits for the Dnipro Reservoir in 2026 were calculated. Originality. For the first time in the Dnipro Reservoir, a comprehensive analysis of Leuciscidae commercial stocks was conducted, incorporating long-term data series, spatial-temporal population characteristics, and mortality coefficients. Differentiated fishing regimes for specific reservoir areas were proposed. Practical Value. The results allow optimization of fishery management, ensuring sustainable use of resources and biodiversity conservation, reducing the risk of stock depletion, and supporting the stability of commercial fishing. The proposed recommendations were used as the basis for establishing fish catch limits in the Dnipro Reservoir in 2026. [ABSTRACT FROM AUTHOR]
Contrast subgraphs catch patterns of altered functional connectivity in autism spectrum disorder
Despite the breakthrough achievements in understanding structural and functional alterations of brain connectivity in autism spectrum disorder (ASD), the exact nature and type of such alterations are not yet clear due to conflicting reports of hyper-connectivity, hypo-connectivity, and—in some cases—combinations of both. In this work, we bring order to the debate using a network comparison technique to capture mesoscopic-scale differential patterns of functional connectedness. In particular, we leverage recent algorithmic advances in extracting contrast subgraphs to identify maximally different mesoscopic connectivity structures between two sets of networks from typically developed individuals and ASD subjects across different developmental stages. A significantly larger connectivity among occipital cortex regions and between the left precuneus and the superior parietal gyrus was found in ASD subjects. At the same time, reduced connectivity characterized the superior frontal gyrus and the temporal lobe regions. More importantly, our results reconcile within a single framework multiple previous separate observations about functional connectivity alterations in ASD.
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