326 research outputs found

    Oral History Best Practices

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    This presentation was created to provide undergraduate students at FIU an overview of the oral history process

    3D: DOIs, Data Files, and Digital Commons

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    This presentation looks at the emerging trends of implementing Digital Object Identifiers (DOIs) and the storage, preservation, and accessibility of related data files for both ETDs and retrospective theses and dissertations (RTDs). The first half of this presentation will explore implementation models for DOIs, including additional metadata work that may become apparent, such as standardizing institutional degrees, as well as the successful administration of a DOI workflow between the graduate school and the library. Participants will learn how DOIs work and their benefit of increased cite-ability and discoverability. Attendees will also learn how to develop a successful workflow in conjunction with both Crossref and Digital Commons. The second half of the presentation will focus on including and managing data files that are submitted along with ETDs, including a brief look at efforts to encourage students to think about the creation and preservation of their data. We will explore the inclusion of data files within the Digital Commons platform, as well as the use of the open source research data repository software of Dataverse. Attendees will develop an awareness of the conventional issues faced in the storage and administration of data and will become versed in the specifications of both Digital Commons and Dataverse. We will leave ample time for questions and lively discussion of best practices related to both DOIs and Data files

    Faculty Unions: Prevailing Attitudes Among Low and High Membership Disciplines

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    This article explores the perceived benefits of union membership for academic librarians at a Florida public university and contrasts attitudes with the comparatively low union membership faculty at the business school. A survey conducted by librarians at Florida International University (FIU) focused on understanding why librarians joined their union at a higher rate (83% membership) than other disciplines and analyzed their feelings toward union effectiveness and relevance. Faculty in the business school were questioned about their reasons for abstaining from union membership in order to compare and contrast union attitudes. The aim of this study is twofold: to understand the differences in sentiments between the disciplines on either end of the membership spectrum and to help faculty unions understand and address these differences so as to increase their visibility and effectiveness through higher membership

    Breaking Boundaries: Harnessing the Power of Artificial Intelligence and ChatGPT to Transform Library Services

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    Join the Artificial Intelligence revolution in libraries by leveraging the potential of machine learning applications to enhance library services. Attendees will explore a holistic strategy to guide evaluating AI\u27s role in the research process using information literacy frameworks. This comprehensive three-part presentation will equip attendees with a theoretical foundation for understanding the role AI can play in libraries, give practical demonstrations on integrating AI into library services, and provide valuable insights on building alliances within their institution to overcome the challenges of incorporating AI. A component of the session will be real-time crowdsourcing of AI tools, prompt engineering, AI literacy concepts, and potential AI initiative opportunities

    Plasma phospholipid fatty acid profile, estimated desaturase activities and prevalence of the metabolic syndrome in a general population cohort:A cross-sectional study

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    BACKGROUND: An altered plasma fatty acid (FA) profile and desaturase activities have been associated with several metabolic diseases, including the MetS, but studies in the general populations are lacking, and only few studies have investigated a broad spectrum of FA in plasma phospholipids (PL). OBJECTIVE: We investigated, cross-sectionally, the relationship of the FA profile and desaturase activities in plasma PL with the prevalence of MetS in a general population in The Netherlands. METHODS: Baseline characteristic data from 850 participants (Male: 50.2%) aged 38-68 years recruited in the Lifelines Cohort study were obtained. The FA profile was determined in fasting plasma PL, and desaturase activities were estimated from product/precursor ratios. The MetS was defined according to International Diabetes Federation. Logistic regressions were used to examine the relation of the FA profile with the prevalence of MetS, and Bonferroni correction was applied to account for multiple testing. RESULTS: 151 participants (17.7%) had the MetS. After adjustment for several confounders and Bonferroni correction, higher tertiles of C18 : 0 (the early precursor of de novo lipogenesis pathway), C18 : 3n6 and C20 : 3n6 (both consistent with a high Δ 6 desaturase (D6D) activity), and D6D activity itself were associated with a higher prevalence of MetS, while higher tertiles of C18 : 1n7, C24 : 0, and C24 : 1n9 (very-long-chain FA) as well as stearoyl-CoA desaturase (SCD)-18 were inversely associated with the MetS. CONCLUSIONS: This study shows that a wide-ranging plasma PL FA profile and estimated desaturase activities were different between adults with and without the MetS in a general representative population and implicates the importance of monitoring individual FAs and desaturase activities as novel modifiable biomarkers for the MetS

    Circulating de novo lipogenesis fatty acids and all-cause mortality in a prospective Dutch population cohort

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    Background: Circulating fatty acids (FA) from de novo lipogenesis (DNL) are associated with all-cause mortality in individuals with elevated CVD risk. However, compared to FA early in the DNL synthetic pathway, cis-vaccenic acid, one of the FA distal in the DNL synthetic pathway, has rarely been studied in a general population cohort. We hypothesized that circulating cis-vaccenic acid is more strongly related to all-cause mortality than other circulating DNL-related FA. Objectives: The primary and secondary objectives of this study were to investigate the prospective associations of plasma levels of cis-vaccenic acid and other DNL-related FA with all-cause mortality in a general population, respectively. Methods: We included 850 participants (mean ± SD age 53 ± 15 years) from the Dutch Lifelines cohort study. Circulating levels of palmitic (C16:0), palmitoleic (C16:1n7), cis-vaccenic (cis-C18:1n7), stearic (C18:0), oleic acid (C18:1n9) in plasma phospholipids (PL) and triglycerides (TG) were measured by gas chromatography. The associations of circulating cis-C18:1n7 and other DNL-related FA with all-cause mortality were assessed using Cox regression analyses. Results: During a median follow-up of 9.3 (IQR: 5.4–10.8) years, 34 (4.0%) participants had died. In plasma PL, a 1-SD increase in cis-C18:1n7 was associated with an increased risk of all-cause mortality in univariate and multivariate models (p<0.02 for all), with a HR [95% CI] of 1.60 [1.13–2.25] after adjustment for age and sex. Conclusions: Circulating plasma PL cis-C18:1n7 was associated with a higher risk for all-cause mortality. More studies are needed in different cohorts to verify and validate our results

    Systolic blood pressure reactions to acute stress are associated with future hypertension status in the Dutch Famine Birth Cohort Study

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    These analyses examined the association between blood pressure reactions to acute psychological stress and subsequent hypertension status in a substantial Dutch cohort. Blood pressure was recorded during a resting baseline and during three acute stress tasks, Stroop colour word, mirror tracing and speech. Five years later, diagnosed hypertension status was determined by questionnaire. Participants were 453 (237 women) members of the Dutch Famine Birth Cohort. In analysis adjusting for a number of potential confounders, systolic blood pressure reactivity was positively related to future hypertension. This was the case irrespective of whether reactivity was calculated as the peak or the average response to the stress tasks. The association was strongest for reactions to the speech and Stroop tasks. Diastolic blood pressure reactivity was not significantly associated with hypertension. The results provide support for the reactivity hypothesis. \ud \u

    Urinary Excretion of N1-Methylnicotinamide and N1-Methyl-2-Pyridone-5-Carboxamide and Mortality in Kidney Transplant Recipients

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    It is unclear whether niacin nutritional status is a target for improvement of long-term outcome after renal transplantation. The 24-h urinary excretion of N1-methylnicotinamide (N1-MN), as a biomarker of niacin status, has previously been shown to be negatively associated with premature mortality in kidney transplant recipients (KTR). However, recent evidence implies higher enzymatic conversion of N1-MN to N1-methyl-2-pyridone-5-carboxamide (2Py) in KTR, therefore the need exists for interpretation of both N1-MN and 2Py excretion for niacin status assessment. We assessed niacin status by means of the 24-h urinary excretion of the sum of N1-MN and 2Py (N1-MN + 2Py), and its associations with risk of premature mortality in KTR. N1-MN + 2Py excretion was measured in a longitudinal cohort of 660 KTR with LS-MS/MS. Prospective associations of N1-MN + 2Py excretion were investigated with Cox regression analyses. Median N1-MN + 2Py excretion was 198.3 (155.9-269.4) µmol/day. During follow-up of 5.4 (4.7-6.1) years, 143 KTR died, of whom 40 due to an infectious disease. N1-MN + 2Py excretion was negatively associated with risk of all-cause mortality (HR 0.61; 95% CI 0.47-0.79; p < 0.001), and infectious mortality specifically (HR 0.47; 95% CI 0.29-0.75; p = 0.002), independent of potential confounders. Secondary analyses showed effect modification of hs-CRP on the negative prospective association of N1-MN + 2Py excretion, and sensitivity analyses showed negative and independent associations of N1-MN and 2Py excretion with risk of all-cause mortality separately. These findings add further evidence to niacin status as a target for nutritional strategies for improvement of long-term outcome in KTR.</p

    Urinary Excretion of N1-methyl-2-pyridone-5-carboxamide and N1-methylnicotinamide in Renal Transplant Recipients and Donors

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    N1-methylnicotinamide (N1-MN) and N1-methyl-2-pyridone-5-carboxamide (2Py) are successive end products of NAD+ catabolism. N1-MN excretion in 24-h urine is the established biomarker of niacin nutritional status, and recently shown to be reduced in renal transplant recipients (RTR). However, it is unclear whether 2Py excretion is increased in this population, and, if so, whether a shift in excretion of N1-MN to 2Py can be attributed to kidney function. Hence, we assessed the 24-h urinary excretion of 2Py and N1-MN in RTR and kidney donors before and after kidney donation, and investigated associations of the urinary ratio of 2Py to N1-MN (2Py/N1-MN) with kidney function, and independent determinants of urinary 2Py/N1-MN in RTR. The urinary excretion of 2Py and N1-MN was measured in a cross-sectional cohort of 660 RTR and 275 healthy kidney donors with liquid chromatography-tandem mass spectrometry (LC-MS/MS). Linear regression analyses were used to investigate associations and determinants of urinary 2Py/N1-MN. Median 2Py excretion was 178.1 (130.3–242.8) μmol/day in RTR, compared to 155.6 (119.6–217.6) μmol/day in kidney donors (p < 0.001). In kidney donors, urinary 2Py/N1-MN increased significantly after kidney donation (4.0 ± 1.4 to 5.2 ± 1.5, respectively; p < 0.001). Smoking, alcohol consumption, diabetes, high-density lipoprotein (HDL), high-sensitivity C-reactive protein (hs-CRP) and estimated glomerular filtration rate (eGFR) were identified as independent determinants of urinary 2Py/N1-MN in RTR. In conclusion, the 24-h urinary excretion of 2Py is higher in RTR than in kidney donors, and urinary 2Py/N1-MN increases after kidney donation. As our data furthermore reveal strong associations of urinary 2Py/N1-MN with kidney function, interpretation of both N1-MN and 2Py excretion may be recommended for assessment of niacin nutritional status in conditions of impaired kidney function. View Full-Tex

    Urinary 3-hydroxyisovaleryl carnitine excretion, protein energy malnutrition and risk of all-cause mortality in kidney transplant recipients:Results from the TransplantLines cohort studies

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    Background: Leucine is an essential amino acid and a potent stimulator of muscle protein synthesis. Since muscle wasting is a major risk factor for mortality in kidney transplant recipients (KTR), dietary leucine intake might be linked to long-term mortality. Urinary 3-hydroxyisovaleryl carnitine (3-HIC) excretion, a functional marker of marginal biotin deficiency, may also serve as a marker for dietary leucine intake. Objective: In this study we aimed to investigate the cross-sectional determinants of urinary 3-HIC excretion and to prospectively investigate the association of urinary 3-HIC excretion with all-cause mortality in KTR. Design: Urinary 3-HIC excretion and plasma biotin were measured in a longitudinal cohort of 694 stable KTR. Cross-sectional and prospective analyses were performed using ordinary least squares linear regression analyses and Cox regression analyses, respectively. Results: In KTR (57% male, 53 +/- 13 years, estimated glomerular filtration rate 45 +/- 19 mL/min/1.73 m(2)), urinary 3-HIC excretion (0.80 [0.57-1.16] mu mol/24 h) was significantly associated with plasma biotin (std. beta = -0.17; P 45%. During median follow-up for 5.4 [4.8-6.1] years, 150 (22%) patients died. Log(2)-transformed urinary 3-HIC excretion was inversely associated with all-cause mortality (HR: 0.52 [0.43-0.63]; P < 0.001). This association was independent of potential confounders. Conclusions: Urinary 3-HIC excretion more strongly serves as a marker of leucine intake than of biotin status. A higher urinary 3-HIC excretion is associated with a lower risk of all-cause mortality. Future studies are warranted to explore the underlying mechanism. (C) 2020 The Authors. Published by Elsevier Ltd
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