Исследование ресурса работы зондов для электроимпульсной литотрипсии

В данной статье представлена оценка ресурса работы зондов различных конструкций для электроимпульсной литотрипсии, выявлены наиболее часто возникающие дефекты. Сделаны выводы о перспективах применения и дальнейшего усовершенствования конструкций

Guidance on Conducting and REporting DElphi Studies (CREDES) in palliative care:Recommendations based on a methodological systematic review

BACKGROUND: The Delphi technique is widely used for the development of guidance in palliative care, having impact on decisions with relevance for patient care. AIM: To systematically examine the application of the Delphi technique for the development of best practice guidelines in palliative care. DESIGN: A methodological systematic review was undertaken using the databases PubMed, CINAHL, Web of Science, Academic Search Complete and EMBASE. DATA SOURCES: Original articles (English language) were included when reporting on empirical studies that had used the Delphi technique to develop guidance for good clinical practice in palliative care. Data extraction included a quality appraisal on the rigour in conduct of the studies and the quality of reporting. RESULTS: A total of 30 empirical studies (1997-2015) were considered for full-text analysis. Considerable differences were identified regarding the rigour of the design and the reporting of essential process and outcome parameters. Furthermore, discrepancies regarding the use of terms for describing the method were observed, for example, concerning the understanding of a 'round' or a 'modified Delphi study'. CONCLUSION: Substantial variation was found concerning the quality of the study conduct and the transparency of reporting of Delphi studies used for the development of best practice guidance in palliative care. Since credibility of the resulting recommendations depends on the rigorous use of the Delphi technique, there is a need for consistency and quality both in the conduct and reporting of studies. To allow a critical appraisal of the methodology and the resulting guidance, a reporting standard for Conducting and REporting of DElphi Studies (CREDES) is proposed

Выбор материала фильтра на основе СВС-механокомпозитов для рафинирования кремния

Работа посвящена подбору материала фильтра, получаемого с применением технологий механической активации и самораспространяющегося высокотемпературного синтеза (СВС), а также установлению возможности протекания реакции в режиме СВС между выбранными компонентами.The work is devoted to the selection of the filter material obtained with the use of the technologies of mechanical activation and self-propagating high-temperature synthesis (SHS), as well as the establishment of the possibility of the reaction in the SHS mode between the selected components

Evolution of the zirconium alloy Zr-1Nb defect structure after cold rolling

Zirconium alloys are actively used in nuclear power engineering. During the operation of these alloys, it is necessary to know the change in structural, mechanical and physical characteristics when using material in corrosive environments. In this regard, it is necessary to study the occurrence of certain defects in the material and their effect. Such defects include dislocations. This study is aimed to study the processes of the appearance and distribution of dislocations in a material by positron annihilation spectroscopy. As a result of this work, the lifetime of positrons in the dislocation of zirconium was determined and the character of dislocation distribution at different degrees of deformation was presented

Участие кураторов академических групп в определении образовательной траектории обучения студентов первого курса

Context. The German Hospice and Palliative Care Evaluation (HOPE) is a national, long-term quality assurance project. Every year, German hospice and palliative care institutions document a core data set for their patients for a period of three months. Objectives. To validate the multidimensional symptom and problem checklist (HOPE-SP-CL) of the core data set and report details on reliability and validity. Methods. Data from yearly evaluation periods between 2002 and 2009 were used to calculate construct and convergent validity, internal consistency, test-retest reliability, and documentation discipline and acceptance of the core documentation system. Results. The HOPE-SP-CL includes items on physical, nursing, psychological, and social symptoms and problems. Factor analysis extracted four low to moderately intercorrelating factors with eigenvalues greater than 1.0 explaining 56% of the total variance. Discriminant validity of the HOPE-SP-CL showed good properties in detecting patient groups with different symptom intensities and overall symptom burden using the Eastern Cooperative Oncology Group performance status and primary cancer diagnosis as external validation criteria. The global sum score of the HOPE-SP-CL correlated most closely with the Palliative Outcome Scale staff version (r = 0.750). Internal consistencies ranged between alpha = 0.768-0.801 at three different times of assessment. Test-retest coefficients showed moderate to high correlations at one-week intervals. Conclusion. Analyses of reliability and validity of the HOPE-SP-CL showed satisfactory to good psychometric properties; therefore, the HOPE-SP-CL can be recommended for standard implementation in German hospice and palliative care institutions. J Pain Symptom Manage 2012;43:593-605. (C) 2012 U.S. Cancer Pain Relief Committee. Published by Elsevier Inc. All rights reserved

Инновационные технологии и системы для защиты окружающей среды от воздействия энергетики

В статье исследованы способы снижения негативного воздействия энергетики на окружающую природную среду с использованием инновационных технологий и систем. Рассмотрены разработанные инновационные технологии мира, представленные на "EXPO-2017 Future Energy".The article explores ways to reduce the negative impact of energy on the environment using innovative technologies and systems. Developed innovative technologies of the world presented at "EXPO-2017 Future Energy" are considered

Using of polypropylene fibers for cleaning of industrial waste water from the fat-soluble organic pollutants

The paper shows the perspective of using methods of ion implantation and microwave irradiation for modifying polypropylene fiber by iron (II), lanthanum (II) and iron metal ions. It was shown that this method is very useful in order to obtain a material with a high photocatalytic activity for extracting liposoluble dyes from non-aqueous media under UV and visible light

Identification of challenges to the availability and accessibility of opioids in twelve European countries:conclusions from two ATOME six-country workshops

Background: Access to many controlled medicines is inadequate in a number of European countries. This leads to deficits in the treatment of moderate to severe pain as well as in opioid agonist therapy. Objective: The study objective was to elaborate the reasons for this inadequacy. The work plan of the Access to Opioid Medication in Europe (ATOME) project included two six-country workshops. These workshops comprised a national situational analysis, drafting tailor-made recommendations for improvement and developing action plans for their implementation. Methods: In total, 84 representatives of the national Ministries of Health, national controlled substances authorities, experts representing regulatory and law enforcement authorities, leading health care professionals, and patient representatives from 13 European countries participated in either one of the workshops. The delegates used breakout sessions to identify key common challenges. Content analysis was used for the evaluation of protocols and field notes. Results: A number of challenges to opioid accessibility in the countries was identified in the domains of knowledge and educational, regulatory, legislative, as well as public awareness and training barriers that limit opioid prescription. In addition, short validity of prescriptions and bureaucratic practices resulting in overregulation impeded availablity of some essential medicines. Stigmatization and criminalisation of people who use drugs remained the major impediment to increasing opioid agonist program coverage. Conclusions: The challenges identified during outcomes of the workshops were used as the basis for subsequent dissemination and implementation activities in the ATOME project, and in some countries the workshop proceedings already served as a stepping-stone for the first changes in regulations and legislation