Valence Fluctuations Revealed by Magnetic Field Scan: Comparison with Experiments in YbXCu_4 (X=In, Ag, Cd) and CeYIn_5 (Y=Ir, Rh)

The mechanism of how critical end points of the first-order valence transitions (FOVT) are controlled by a magnetic field is discussed. We demonstrate that the critical temperature is suppressed to be a quantum critical point (QCP) by a magnetic field. This results explain the field dependence of the isostructural FOVT observed in Ce metal and YbInCu_4. Magnetic field scan can lead to reenter in a critical valence fluctuation region. Even in the intermediate-valence materials, the QCP is induced by applying a magnetic field, at which the magnetic susceptibility also diverges. The driving force of the field-induced QCP is shown to be a cooperative phenomenon of the Zeeman effect and the Kondo effect, which creates a distinct energy scale from the Kondo temperature. The key concept is that the closeness to the QCP of the FOVT is capital in understanding Ce- and Yb-based heavy fermions. It explains the peculiar magnetic and transport responses in CeYIn_5 (Y=Ir, Rh) and metamagnetic transition in YbXCu_4 for X=In as well as the sharp contrast between X=Ag and Cd.Comment: 14 pages, 9 figures, OPEN SELECT in J. Phys. Soc. Jp

Biocultural diversity : a novel concept to assess human-nature interrelations, nature conservation and stewardship in cities

Biocultural diversity is an evolving perspective for studying the interrelatedness between people and their natural environment, not only in ecoregional hotspots and cultural landscapes, but also in urban green spaces. Developed in the 1990s in order to denote the diversity of life in all its manifestations. biological, cultural and linguistic. co-evolving within complex socio-ecological systems such as cities, biocultural diversity was identified in the GREEN SURGE project as a response to recent challenges cities face. Most important challenges are the loss of nature and degradation of ecosystems in and around cities as well as an alienation of urban residents from and loss of interaction with nature. The notion of biocultural diversity is dynamic in nature and takes local values and practices of relating to biodiversity of different cultural groups as a starting point for sustainable living with biodiversity. The issue is not only how to preserve or restore biocultural practices and values, but also how to modify, adapt and create biocultural diversity in ways that resonate with urban transformations. As future societies will largely diverge from today's societies, the cultural perspective on living with (urban) nature needs careful reconsideration. Biocultural diversity is not conceived as a definite concept providing prescriptions of what to see and study, but as a reflexive and sensitising concept that can be used to assess the different values and knowledge of people that reflect how they live with biodiversity. This short communication paper introduces a conceptual framework for studying the multi-dimensional features of biocultural diversity in cities along the three key dimensions of materialized, lived and stewardship, being departure points from which biocultural diversity can be studied.Peer reviewe

Discharge from hospital – a national survey of transition to out‐patient care

Introduction Despite a generally decreased length of stay in Swedish hospitals, an increasing delay of discharge has been observed among patients with long-term care need. Aim Identify challenges and opportunities in the transition of patients between hospitals and out-patient care. Method Data were obtained from national registers on patients discharged from hospitals in 2014, interviews with public care authorities, and a systematic literature review. Results A total of 1 121 823 persons were discharged from Swedish hospitals in 2014. Of all discharged patients, 334 420 (30%) was in need of further out-patient medical care while 221 221 (20%) needed social services. Among these discharged patients, 53 763 (5%) needed both medical care and social services. In this group of frail persons (primarily females 80 years or older), 25 760 (48%) were readmitted to hospital within 30 days from the discharge. Main reported challenges in the transition were as follows: a decreasing number of beds in hospitals and nursing homes, lack of staff with proper education, and problems in transfer of information between caregivers. To solve these problems, respondents reported some new approaches: extensive initial home services after discharge, out-patient care organised by both municipalities and county councils, local follow-up of patient data as well as an emphasis on collaboration between caregivers. The literature reported ambiguous results about effects of single interventions at discharge. However, evidence suggests that the number of readmissions to hospital may be reduced by combining several interventions before discharge (individual planning, geriatric assessment, and patient education) with follow-up after discharge. Conclusion Since many frail patients are readmitted to hospital within 30 days after discharge, Swedish out-patient care may need new working methods in order to promote a coherent care. Further, multi-component interventions at discharge, including follow-up after discharge, may prevent unintended readmissions.</p

Gamma-glutamyltransferase and risk of stroke: the eurostroke project (J. Epidemiol Community Health. — 2002. — Feb. — Vol. 56 Suppl 1. —P. 25—29: англ.)

Alcohol abuse is one of the possible etiological factors in the onset of acute cerebrovascular accidents. The fact of alcohol dependence can be established by using special questionnaires, but there is a more reliable method: a blood test for the presence of gamma-glutamyltransferase (gamma-HT), which is a marker of alcohol consumption.</jats:p