What your patient reads: creating a value-added tool for physicians

Through a number of media sources, today's consumers have unprecedented access to health information of varying reliability and authority. Empowered by this information, patients are more involved in their health care decisions and more willing to question physicians' advice. This poses a challenge for physicians who must now find time to read mass media health reports in addition to medical research. In order to help physicians with this task, librarians at the University of Manitoba Health Sciences Libraries created What Your Patient Reads - one-page summaries of health-related media reports supplemented with references to evidence-based medical literature.     

Carbohydrates for training and competition

An athlete's carbohydrate intake can be judged by whether total daily intake and the timing of consumption in relation to exercise maintain adequate carbohydrate substrate for the muscle and central nervous system ("high carbohydrate availability") or whether carbohydrate fuel sources are limiting for the daily exercise programme ("low carbohydrate availability"). Carbohydrate availability is increased by consuming carbohydrate in the hours or days prior to the session, intake during exercise, and refuelling during recovery between sessions. This is important for the competition setting or for high-intensity training where optimal performance is desired. Carbohydrate intake during exercise should be scaled according to the characteristics of the event. During sustained high-intensity sports lasting ~1 h, small amounts of carbohydrate, including even mouth-rinsing, enhance performance via central nervous system effects. While 30-60 g · h(-1) is an appropriate target for sports of longer duration, events >2.5 h may benefit from higher intakes of up to 90 g · h(-1). Products containing special blends of different carbohydrates may maximize absorption of carbohydrate at such high rates. In real life, athletes undertake training sessions with varying carbohydrate availability. Whether implementing additional "train-low" strategies to increase the training adaptation leads to enhanced performance in well-trained individuals is unclear.     

Two-dimensional ferromagnetic superlattices

Mechanically exfoliated two-dimensional ferromagnetic materials (2D FMs) possess long-range ferromagnetic order and topologically nontrivial skyrmions in few layers. However, because of the dimensionality effect, such few-layer systems usually exhibit much lower Curie temperature (T_C) compared to their bulk counterparts. It is therefore of great interest to explore effective approaches to enhance their T_C, particularly in wafer-scale for practical applications. Here, we report an interfacial proximity-induced high-T_C 2D FM Fe₃GeTe₂ (FGT) via A-type antiferromagnetic material CrSb (CS) which strongly couples to FGT. A superlattice structure of (FGT/CS)_n, where n stands for the period of FGT/CS heterostructure, has been successfully produced with sharp interfaces by molecular-beam epitaxy on 2-inch wafers. By performing elemental specific X-ray magnetic circular dichroism (XMCD) measurements, we have unequivocally discovered that T_C of 4-layer Fe₃GeTe₂ can be significantly enhanced from 140 K to 230 K because of the interfacial ferromagnetic coupling. Meanwhile, an inverse proximity effect occurs in the FGT/CS interface, driving the interfacial antiferromagnetic CrSb into a ferrimagnetic state as evidenced by double-switching behavior in hysteresis loops and the XMCD spectra. Density functional theory calculations show that the Fe-Te/Cr-Sb interface is strongly FM coupled and doping of the spin-polarized electrons by the interfacial Cr layer gives rise to the T_C enhancement of the Fe₃GeTe₂ films, in accordance with our XMCD measurements. Strikingly, by introducing rich Fe in a 4-layer FGT/CS superlattice, T_C can be further enhanced to near room temperature. Our results provide a feasible approach for enhancing the magnetic order of few-layer 2D FMs in wafer-scale and render opportunities for realizing realistic ultra-thin spintronic devices.     

社会信息化测度体系中信息资源指标集的构建与分析

从国内外信息化测度方法和模型以及近年来我国学者进行的众多信息化测度实例出发,抽取信息资源因素进行归纳和 总结.借鉴前人的研究成果,并依托一定的理论依据和现实依据构建信息资源指标集,该指标集囊括传统文献信息资源(图书,报纸、期刊)和电子信息资源(广播、电视、网络),与现有的测度体系相比,具有更强的可靠性和较高的准确性,同时保持较好的可操作性,因而是科学合理的.     

Algorithms: avoiding the implementation of institutional biases

ABSTRACT

Computer algorithms, the logic and code that power automated decision-making programs, increasingly dominate many aspects of modern society. There are already many examples of institutional biases – including ideological bias, racism, sexism, ableism – being solidified in algorithms, causing harm to already underprivileged populations. This article explores library-specific and society-wide examples as well as efforts to prevent the implementation of these biases in the future.     

Across the campuses and around the globe: Reaching online learners through high-level embedded librarianship

In response to strategic and administrative goals, a large R1 public university with 24 campuses developed a programmatic embedded librarian pilot in 2016. This pilot provided high-level embedded librarianship to a growing online education program with learners located domestically and abroad. Embedded teams included librarians at regional campuses, instructional designers, and course faculty. Together the teams created new support systems and resources for online learners. This case study offers reflections and considerations for a team-based approach to high-level embedded librarianship online. Ultimately, the authors determined that successful programmatic embedded librarianship must be strategic and intentional with carefully cultivated, team-designed courses.     

“I’m Demi and I Have Bipolar Disorder”: Effect of Parasocial Contact on Reducing Stigma Toward People With Bipolar Disorder

Examining celebrity influence, participants (N = 594) completed an experiment to see if negative stereotypes toward bipolar disorder could be reduced as a function of mode of disease disclosure from a celebrity (Demi Lovato) diagnosed with the condition. Respondents were randomly assigned to view one of three conditions where the celebrity discusses her battle with bipolar disorder (or a comparison message). Measures assessing parasocial relationship (PSR), level of parasocial interaction (PSI), transportation, social distance towards, and negative stereotypes about people with bipolar disorder were used. Social distance and negative stereotypes toward people with bipolar disorder reduced significantly following exposure to Demi Lovato’s disclosure about the disease via either TV/magazine interview. Implications of results for how celebrity disease disclosures may help reduce stigma toward bipolar condition are discussed.     

THE PROVISION OF COUNSELING SERVICES AMONG SCHOOL PSYCHOLOGISTS: AN EXPLORATION OF TRAINING,CURRENT PRACTICES,AND PERCEPTIONS

Although school psychologists have been called on in recent literature to assume a leadership role in a collective and comprehensive effort to address students’ mental health needs, many practitioners find that their professional roles continue to be narrowly focused on special education‐related activities, such as individualized assessment and eligibility determination. Meanwhile, students’ mental health needs have never been greater. The current study focused specifically on school psychologists’ provision of school‐based counseling, an activity that has been shown to be effective in addressing students’ mental health needs, as well as a professional role that many practitioners have expressed a desire to expand. A national sample of school psychologists responded to an Internet survey related to various aspects of counseling service delivery, including their training to provide services, current practices, and perceptions of the importance for school psychologists to assume the responsibility of providing school‐based counseling services.     

Cross‐national Comparisons in the International Successful School Principalship Project (ISSPP): The USA,Norway and China

This article provides a cross‐national perspective on successful school principalship in three countries derived from an analysis of case studies in the International Successful School Principalship Project (ISSPP). The ISSPP aims to investigate the characteristics, processes and effects of successful school leadership across eight countries (i.e. Australia, Canada, England, the United States, China, Denmark, Sweden and Norway). Examples from the USA, Norway and China (Shanghai) were selected to illustrate cross‐national differences related to the societal purposes of education, the structure and funding of different national educational systems and the influence of particular governmental educational policies (i.e. accountability‐oriented policies) on the leadership practices of individual school principals. Variations in selection criteria and research procedures were also noted. Recommendations for further research using a cultural framework include analysing multiethnic schools to identify culturally specific leadership practices as well as developing further ISSPP case studies in non‐Western contexts.