Search results for "Assurance"

Tumors of the central nervous system in children and adolescents.

2011

Multimodal treatment approaches for children with tumors of the central nervous system (CNS) have markedly contributed to improved survival. Before 1970, the survival rate among children with medulloblastoma, the most common malignant CNS tumor in children, was about 20%. At present, in contrast, cure can be achieved in more than 75% of children with a favorable constellation of risk factors. In this review article for clinicians, we give an overview of the current understanding of the pathology, presenting manifestations, early diagnosis, and treatment of CNS tumors in children and adolescents.We report the research findings of the German Treatment Network "HIT" and selectively review the …

Humanities and Social Sciences. Latvia: Vol. 27, N 1 (Spring-Summer 2019)

2019

CHALLENGES AND SOLUTIONS OF TVET QUALITY ASSURANCE IN MONGOLIA

2020

Technical and vocational education and training (TVET) makes a significant contribution to economic competitiveness in a knowledge-based economy. The main challenge for vocational education and training is to meet the changing skill needs in the labour market. In order to balance labour market supply and demand by constantly diversifying TVET customer base, it is necessary to increase the key role played by vocational education and training in economic competitiveness and social inclusion. The considerable economic growth in Mongolia does not have a positive impact on the creation of new jobs and poverty reduction. This implies that the Mongolian education sector was unable to produce requi…

Acute toxicity tests using earthworms to estimate ecological quality of compost and digestate

2017

Ecological quality of compost and digestate, used as fertilizers for agricultural use, was assessed through an acute ecotoxicological bioassay testing the earthworm Eisenia fetida (Annelida). The test evaluates the earthworm’s attitude to dig within 15 min into a soil medium constituted by a mixture of a standardized soil and different concentrations of compost/digestate. According to different classes of behavior responses, the sample is classified as good or bad quality (ON/OFF). The validity of this test was confirmed comparing the observations with the results from a standard chronic test developed by OECD (Organisation for Economic Co-operation and Development). Considering samples fro…

Quality control for exposure assessment in epidemiological studies

2010

In the framework of an epidemiological study, dosemeters were used for the assessment of radio frequency electromagnetic field exposure. To check the correct dosemeter's performance in terms of consistency of recorded field values over the entire study period, a quality control strategy was developed. In this paper, the concept of quality control and its results is described. From the 20 dosemeters used, 19 were very stable and reproducible, with deviations of a maximum of +/- 1 dB compared with their initial state. One device was found to be faulty and its measurement data had to be excluded from the analysis. As a result of continuous quality control procedures, the confidence in the meas…

Quality Assurance and Support Measures for Solar Cooling on System Level

2016

Abstract Within the IEA SHC Task 48 “Quality assurance and support measures for Solar Cooling” the analysis and evaluation of the systems has been one of the four main focuses. Here the activities are including the lab- and field-based characterization of the systems, the definition and application of performance figures, a guideline for a reliable monitoring procedure including methods for automated error detection and an updated overview on worldwide installed DEC systems including hints and good practice examples. They are furthermore leading to three different easy-to-use tools for solar cooling systems: The LCA tool considers environmental and energetic values for the evaluation, the P…

DEPENDENCE OF MACHINING SIMULATION EFFECTIVENESS ON MATERIAL AND FRICTION MODELLING

2008

Numerical simulation of cutting processes is still a very difficult matter, although some relevant geometrical simplifications and high-performance codes are used. A large number of technical papers have been focused on the predictive capability of the codes: nevertheless the prediction quality is not very satisfactory if the problem is analyzed in a wide sense. In this paper the simple orthogonal cutting process of a plain-carbon steel is investigated taking into account different process conditions (cutting speed and feed rate). Furthermore, four material constitutive equations and three friction models were implemented and a sensitivity analysis was carried out comparing the numerical pr…

Low-Intensity Ultrasounds

2012

Ultrasonics, showing increasing use in the food industry for both the analysis and modification of food products, is a rapidly growing field of research. The sound ranges employed can be divided into high-frequency, low-energy diagnostic ultrasounds and low-frequency, high-energy power ultrasounds. The former is usually used as a nondestructive, rapid, easy-to-automate, and relatively inexpensive analytical technique for quality assurance and process control with particular reference to physicochemical properties, such as composition, structure, and physical state of foods. Nowadays, power ultrasound is considered to be an emerging and promising technology for industrial food processing. Th…

Internal Quality Assurance for Higher Education Study Programme

2015

<p>Quality assurance for study programme is necessary precondition to realize qualitative higher education. Quality assessment is important part of quality assurance cycle. There are used different methodologies, assessment criteria and indicators to assess the higher education quality. It is clear that the assessment results which study programme will be better or worse are detected by the choice of criteria. It is difficult to find objective criteria which could be used universally for all study programme types. The aim of the research is to investigate quality assurance cycle for study programme quality and pay main attention to assessment part. The aim of assessment part is to sel…

ISO 9000‐based quality assurance approaches and their relationship with strategic analysis

2003

Many organisations use the ISO 9000 series as a reference framework to establish their quality assurance system. In doing so, most of them overlook the process of interpreting and adapting these standards to their own characteristics and capabilities. As a result, there is a misunderstanding with respect to the objectives of the standards. The correct implementation of the ISO 9000 series requires a preliminary analysis that facilitates the adaptation of them to the particular circumstances of a company. Therefore, this paper pays attention to the relationship existing between ISO 9000 implementation and the use of strategic diagnosis tools. The employment of such tools could be studied as …