21 research outputs found

    High iron requirements for growth in the nuisance alga Gonyostomum semen (Raphidophyceae)

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    The bloom-forming freshwater alga Gonyostomum semen is associated with acidic, mesotrophic brown water lakes in boreal regions. However, researchers have been unable to conclusively link G. semen abundance and bloom formation to typical brown water lake traits, that is, high water color and DOC (dissolved organic carbon) concentrations. Iron is a main driver of water color in boreal lakes, and a recent study of lake monitoring data indicated a connection between lakes with high G. semen abundance and iron concentrations >200 ”g · L−1. Thus, iron may be the missing link in explaining G. semen abundance and growth dynamics. We experimentally assessed the effects of different iron concentrations above or below 200 ”g · L−1 on the growth of G. semen batch monocultures. Iron concentrations 200 ”g · L−1 did not. Moreover, the iron concentration of the medium required for growth was higher than for other common phytoplankton (Microcystis botrys and Chlamydomonas sp.) included in the experiment. These results indicate that G. semen requires high levels of iron in the lake environment. Consequently, this and previous findings using lake monitoring data support the hypothesis that high concentrations of iron favor the formation of high-density G. semen blooms in boreal brown water lakes. As lakes get browner in a changing climate, monitoring iron levels could be a potential tool to identify lakes at risk for G. semen blooms, especially among lakes that provide ecosystem services to society

    White book on physical and rehabilitation medicine (PRM) in Europe. Chapter 7.The clinical field of competence: PRM in practice

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    In the context of the White Book on Physical and Rehabilitation Medicine (PRM) in Europe this paper deals with the scope and competencies of PRM starting from its definition as the "medicine of functioning." PRM uses the rehabilitative health strategy as its core strategy together with the curative strategy. According to the complexity of disabling health conditions, PRM also refers to prevention and maintenance and provides information to the patients and other caregivers. The rehabilitation process according to the so-called rehabilitation cycle including an assessment and definition of the (individual) rehabilitation goals, assignment to the rehabilitation program evaluation of individual outcomes. PRM physicians treat a wide spectrum of diseases and take a transversal across most of the medical specialties. They also focus on many functional problems such as immobilization, spasticity, pain syndromes, communication disorders, and others. The diagnosis in PRM is the interaction between the medical diagnosis and a PRM-specific functional assessment. The latter is based on the ICF conceptual framework, and obtained through functional evaluations and scales: these are classified according to their main focus on impairments, activity limitations or participation restrictions; environmental and personal factors are included as barriers or facilitators. Interventions in PRM are either provided directly by PRM physicians or within the PRM team. They include a wide range of treatments, including medicines, physical therapies, exercises, education and many others. Standardized PRM programs are available for many diseases and functional problems. In most cases rehabilitation is performed in multi-professional teams working in a collaborative way, as well as with other disciplines under the leadership of a PRM physician and it is a patient-centered approach. Outcomes of PRM interventions and programs, showed reduction of impairments in body functions, activity limitations, and impacting on participation restrictions, and also reduction in costs as well as decrease in mortality for certain groups of patients

    White Book on Physical and Rehabilitation Medicine in Europe. Introductions, Executive Summary, and Methodology

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    The White Book (WB) of Physical and Rehabilitation Medicine (PRM) in Europe is produced by the 4 European PRM Bodies (European Academy of Rehabilitation Medicine - EARM, European Society of PRM - ESPRM, European Union of Medical Specialists - PRM Section, European College of PRM-ECPRM served by the European Union of Medical Specialists-PRM Board) and constitutes the reference book for PRM physicians in Europe. It has now reached its third edition; the first was published in 1989 and the second in 2006/2007. The WB has multiple purposes, including providing a unifying framework for European countries, to inform decision-makers on European and national level, to offer educational material for PRM trainees and physicians and information about PRM to the medical community, other rehabilitation professionals and the public. The WB states the importance of PRM, a primary medical specialty that is present all over Europe, with a specific corpus disciplinae, a common background and history throughout Europe. PRM is internationally recognized and a partner of major international bodies, including the World Health Organization (WHO). PRM activities are strongly based on the documents of the United Nations (UN) and WHO, such as the Convention of the Rights of Persons with Disabilities (2006), the World Report on Disability (2011), the WHO Global Disability Action Plan 2014-2021 (2014) and the WHO initiative "Rehabilitation 2030: a call for action" (2017). The WB is organized in 4 sections, 11 chapters and some appendices. The WB starts with basic definitions and concepts of PRM and continues with why rehabilitation is needed by individuals and society. Rehabilitation focuses not only on health conditions but also on functioning. Accordingly, PRM is the medical specialty that strives to improve functioning of people with a health condition or experiencing disability. The fundamentals of PRM, the history of the PRM specialty, and the structure and activities of PRM organizations in Europe are presented, followed by a thorough presentation of the practice of PRM, i.e. knowledge and skills of PRM physicians, the clinical field of competence of PRM, the place of the PRM specialty in the healthcare system and society, education and continuous professional development of PRM physicians, specificities and challenges of science and research in PRM. The WB concludes with the way forward for the specialty: challenges and perspectives for the future of PRM

    White Book on Physical and Rehabilitation Medicine (PRM) in Europe. Chapter 8. The PRM specialty in the healthcare system and society

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    In the context of the White Book of Physical and Rehabilitation Medicine (PRM) in Europe, this paper deals with a global overview of the role of PRM in healthcare systems in Europe. Several documents and reports by WHO and the UN call for the worldwide strengthening of rehabilitation as a key health strategy of the 21st century. Therefore, further implementation of PRM in healthcare systems is crucial. Many aspects need to be considered when implementing PRM in a health system. Since PRM should be provided along the whole continuum of care, a specific phase model has been developed. Those phases depend on patients' functional needs as well as on temporal aspects of a health condition: it can be congenital or acquired, and the disorder can have an acute onset or a progressive or degenerative course. The following phases are described in the paper: habilitation, prehabilitation, PRM in acute settings, in post-acute and in long-term settings. Regular triage and reassessment to assign the patient to the appropriate level and setting of rehabilitation care is mandatory. Therefore, rehabilitation services should be stratified and organized in networks, in order to allow for the best possible care adapted to the individual's needs and goals, over the continuum of care. Providing correct PRM services requires good planning of service delivery, capacity building and resource allocation. The needed resources are human (with complex multi-professional teams), technical (diagnostic and therapeutic equipment, equipment for performing complementary diagnostic means, rehabilitation technology and assistive devices), and financial. Decisions on the allocation of the usually limited resources require a reasoned process and clear and fair criteria. Principles of clinical governance must be respected, and appropriate competencies are required. Disease prevention (primary, secondary and tertiary), health maintenance and support in chronic conditions as well as global health promotion are gaining growing importance in PRM. They include encouraging physical activity and promoting healthy behavior aiming at the maintenance of maximum function and avoiding complications in disabling or progressive conditions. This is discussed in the paper together with some ethical reflections on the choices PRM physicians continuously have to make during service delivery
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