492 research outputs found
Innovation and Responsibility: Librarians in an Era of Generative AI, Inequality, and Information Overload
In an era marked by generative AI, widening inequality, and information overload, librarians with LIS training find themselves at the forefront of a changing landscape. The traditional paradigm in academia is challenged by new technologies and social shifts, prompting a reassessment the librarian\u27s role as a public leader. This article discusses three perspectives on these issues, placing them within the larger conversation of the LIS field. Dr. Norman Mooradian lays the groundwork for a paradigm shift by exploring the intersection of knowledge and ethics in a knowledge economy. Boheme Morris delves into the complexities of inequality within the high-tech knowledge economy, challenging the efficacy of the access doctrine. Sarah Wilson\u27s research emphasizes the need for diversity, equity, and inclusion in knowledge access, and sounds a clarion call for library services to do more in the furtherance of DEI
Dopamine agonist serum concentrations and impulse control disorders in Parkinson's disease
Background and purpose: Impulse control disorders (ICDs) are common among Parkinson's
disease patients using dopamine agonists. We wanted to determine whether ICD patients
have higher dopamine agonist serum concentrations than those without any sign of ICD.
Methods: Patients who used either pramipexole or ropinirole depot once daily were
screened for ICDs using the validated Questionnaire for Impulsive-Compulsive Disorders
in Parkinson's Disease–Rating Scale. Those who scored above the cut-off for one or more
of the four defined ICDs (gambling, compulsive sexual behavior, compulsive shopping,
and binge-eating) were compared in a case–control study to patients who scored zero
points (no evidence of ICD) on the same items. They were examined clinically and evaluated using relevant scales. Three blood samples were taken on the same day: before daily
dose, and then 6 and 12 h later.
Results: Forty-six patients were included: 19 ICD-positive and 27 controls. Ropinirole
serum concentrations 6 h after daily intake (Cmax) were higher in the case group compared
to the control group, as was the daily ropinirole dosage. No differences were observed in
serum concentrations, dosage or total drug exposure for pramipexole. Disease duration
and length of dopamine agonist treatment was significantly longer among ICD patients
for ropinirole, but not for pramipexole.
Conclusions: The use of pramipexole may in itself confer high ICD risk, whereas ICDs
among ropinirole users depend more on serum concentration and drug exposure. The
pharmacokinetic properties of ropinirole make it challenging to predict its effects on patients, which supports the need for therapeutic drug monitoring to reduce risk of ICD
Feasibility study for a microwave-powered ozone sniffer aircraft
The preliminary design of a high-altitude, remotely-piloted, atmospheric-sampling aircraft powered by microwave energy beamed from ground-based antenna was completed. The vehicle has a gross weight of 6720 pounds and is sized to carry a 1000 pound payload at an altitude of 100,000 feet. The underside of the wing serves as the surface of a rectenna designed to receive microwave energy at a power density of 700 watts per square meter and the wing has a planform area of 3634 square feet to absorb the required power at an optimum Mach number M = 0.44. The aircraft utilizes a horizontal tail and a canard for longitudinal control and to enhance the structural rigidity of the twin fuselage configuration. The wing structure is designed to withstand a gust-induced load factor n = 3 at cruise altitude but the low-wing loading of the aircraft makes it very sensitive to gusts at low altitudes, which may induce load factors in excess of 20. A structural load alleviation system is therefore proposed to limit actual loads to the designed structural limit. Losses will require transmitted power on the order of megawatts to be radiated to the aircraft from the ground station, presenting environmental problems. Since the transmitting antenna would have a diameter of several hundred feet, it would not be readily transportable, so we propose that a single antenna be constructed at a site from which the aircraft is flown. The aircraft would be towed aloft to an initial altitude at which the microwave power would be utilized. The aircraft would climb to cruise altitude in a spiral flight path and orbit the transmitter in a gentle turn
A Consensus Set of Outcomes for Parkinson's Disease from the International Consortium for Health Outcomes Measurement
Background: Parkinson's disease (PD) is a progressive neurodegenerative condition that is expected to double in prevalence due to demographic shifts. Value-based healthcare is a proposed strategy to improve outcomes and decrease costs. To move towards an actual value-based health care system, condition-specific outcomes that are meaningful to patients are essential. Objective: Propose a global consensus standard set of outcome measures for PD. Methods: Established methods for outcome measure development were applied, as outlined and used previously by the International Consortium for Health Outcomes Measurement (ICHOM). An international group, representing both patients and experts from the fields of neurology, psychiatry, nursing, and existing outcome measurement efforts, was convened. The group participated in six teleconferences over a six-month period, reviewed existing data and practices, and ultimately proposed a standard set of measures by which patients should be tracked, and how often data should be collected. Results: The standard set applies to all cases of idiopathic PD, and includes assessments of motor and non-motor symptoms, ability to work, PD-related health status, and hospital admissions. Baseline demographic and clinical variables are included to enable case mix adjustment. Conclusions: The Standard Set is now ready for use and pilot testing in the clinical setting. Ultimately, we believe that using the set of outcomes proposed here will allow clinicians and scientists across the world to document, report, and compare PD-related outcomes in a standardized fashion. Such international benchmarks will improve our understanding of the disease course and allow for identification of 'best practices', ultimately leading to better informed treatment decisions.This project was funded by the International Consortium for Health Outcome Measurement.S
Structured film-viewing preferences and practices : a quantitative analysis of hierarchies in screen and content selection amongst young people in Flanders
Aleit Veenstra, Philippe Meers and Daniel Biltereyst address a specific segment of a typical small-market audience—Flemish youth film viewers. Their study “Structured Film Viewing Preferences and Practices: A Quantitative Analysis of Hierarchies in Screen and Content Selection among Young People in Flanders” deals with one of the symptomatic problems of the era of convergent audiences, the multiplication of screens used for domestic consumption of audiovisual content. Building an intriguing empirical design, Veenstra and her colleagues aim to identify patterns of screen selection and their relation to the perceived value of Hollywood, European and domestic Flemish films. Their conclusion is that there are well-articulated hierarchies applied by the audience members in the selection of both film titles and reception screens and that, to put it simply, in the case of screens, size matters
Fall-related activity avoidance in relation to a history of falls or near falls, fear of falling and disease severity in people with Parkinson’s disease
A Missense Variant in PTPN22 is a Risk Factor for Drug-induced Liver Injury
Background & Aims We performed genetic analyses of a multiethnic cohort of patients with idiosyncratic drug-induced liver injury (DILI) to identify variants associated with susceptibility. Methods We performed a genome-wide association study of 2048 individuals with DILI (cases) and 12,429 individuals without (controls). Our analysis included subjects of European (1806 cases and 10,397 controls), African American (133 cases and 1,314 controls), and Hispanic (109 cases and 718 controls) ancestry. We analyzed DNA from 113 Icelandic cases and 239,304 controls to validate our findings. Results We associated idiosyncratic DILI with rs2476601, a nonsynonymous polymorphism that encodes a substitution of tryptophan with arginine in the protein tyrosine phosphatase, nonreceptor type 22 gene (PTPN22) (odds ratio [OR] 1.44; 95% confidence interval [CI] 1.28–1.62; P = 1.2 × 10–9 and replicated the finding in the validation set (OR 1.48; 95% CI 1.09–1.99; P = .01). The minor allele frequency showed the same effect size (OR > 1) among ethnic groups. The strongest association was with amoxicillin and clavulanate-associated DILI in persons of European ancestry (OR 1.62; 95% CI 1.32–1.98; P = 4.0 × 10–6; allele frequency = 13.3%), but the polymorphism was associated with DILI of other causes (OR 1.37; 95% CI 1.21–1.56; P = 1.5 × 10–6; allele frequency = 11.5%). Among amoxicillin- and clavulanate-associated cases of European ancestry, rs2476601 doubled the risk for DILI among those with the HLA risk alleles A*02:01 and DRB1*15:01. Conclusions In a genome-wide association study, we identified rs2476601 in PTPN22 as a non-HLA variant that associates with risk of liver injury caused by multiple drugs and validated our finding in a separate cohort. This variant has been associated with increased risk of autoimmune diseases, providing support for the concept that alterations in immune regulation contribute to idiosyncratic DILI
Phase 1 dose de-escalation trial of the endogenous folate [6R]-5,10-methylene tetrahydrofolate in combination with fixed-dose pemetrexed as neoadjuvant therapy in patients with resectable rectal cancer
Recommended from our members
A critical recuperation of Watsuji’s Rinrigaku
Watsuji is recognised as one Japan’s foremost philosophers. His work on ethics, Rinrigaku, is cosmopolitan in engaging the Western philosophical tradition, and in presupposing an international audience. Yet Watsuji’s ethical thought is largely of niche interest outside Japan, and it is critiqued on the ground that it ratifies totalitarianism, demanding individuals’ unquestioning subordination to communal demands. We offer a reading of Rinrigaku that, in attempting to trace the text’s intention, disputes these arguments. We argue that Rinrigaku makes individual autonomy central to ethical action, despite the fact that its treatment of coercion may lead one to think otherwise; that it does not reduce ethical obligations to whatever demands any given society imposes on its members; that it draws a distinction between socio-ethical orders that are genuinely ethical and those that are not; and that, in insisting on the grounding of individuals in the Absolute, it makes adequate room for individuals’ resistance to unjustifiable socio-ethical demands
- …