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Semi-solid metal alloys, as used in thixoforming, have a special microstructure of globular grains suspended in a liquid metal matrix. The complex rheological properties are strongly influenced by the local solid fraction, particle shape, particle size and state of agglomeration. There is a high demand for models and software tools allowing the simulation of semi-solid casting processes. The material under investigation is a tin-lead alloy (Sn-15%Pb) which exhibits a similar microstructure to aluminium alloys. The experiments were performed with a concentric cylinder rheometer of the Searle type. Initially, the liquid alloy is cooled down to the semi-solid range under constant shearing and then kept under isothermal conditions for further experimentation. Based on the experimental data, a single-phase model has been derived where the semi-solid alloy is regarded as a homogeneous material with thixotropic properties and the microstructure is characterised by a structural parameter. The model consists of two parts: the equation of state, including a finite yield stress, and a rate equation for the structural parameter. The model equations are employed in numerical software and used for the simulation of characteristic filling cases and the comparison with the conventional filling.
Investigation of the use of ceramic materials in innovative light water reactor – fuel rod concepts
(2001)
Semi-solid metal alloys, as used in thixoforming, have a special microstructure of globular grains suspended in a liquid metal matrix. The material under investigation is a tin–lead alloy (Sn–15% Pb) which exhibits a similar microstructure as aluminum alloys. The experiments were performed with concentric cylinder rheometers. Initially, the liquid alloy is cooled down to the semi-solid range under constant shearing and then kept under isothermal conditions for further experimentation. The microstructure is characterized in dependence of the shearing time. The rheological techniques consisted of step change of shear rate and shear stress ramp experiments for different solid fractions (40–50%). Based on the experimental data a single phase model has been derived, where the semi-solid alloy is regarded as a homogeneous material with thixotropic properties and the microstructure is characterized by a structural parameter. The model consists of two parts: the equation of state, including a finite yield stress, and a rate equation for the structural parameter. The model equations are employed into numerical software and used for the simulation of a characteristic thixocasting process. The results are compared to real experiments.
Data warehouse systems have become a basic technological infrastructure in management decision making. Nevertheless, the overall utility of data warehouses remains unmeasured in most practical cases. As a consequence of this, IT-managers do not possess appropriate means to evaluate warehouse benefits in order to decide about investments in warehousing technology. This paper develops a controlling instrument for data warehouse systems based on the Balanced Scorecard (BSC) approach. On the basis of the technological aspects of data warehouse systems, the BSC perspectives are developed and populated with relevant objectives and measures for datawarehouse success. These perspectives are integrated into a consistent data warehouse scorecard. Finally, this instrument provides a holistic approach to drive the performance of data warehouse systems.
Building on Hofstede's finding that individualism and social hierarchy are incompatible at the societal level, the authors examined the relationship between individualism-collectivism and orientations toward authority at the individual level. In Study 1, authoritarianism was related to three measures of collectivism but unrelated to three measures of individualism in a U.S. sample (N = 382). Study 2 used Triandis's horizontal-vertical individualism-collectivism framework in samples from Bulgaria, Japan, New Zealand, Germany, Poland, Canada, and the United States (total N = 1,018). Both at the individual level and the societal level of analysis, authoritarianism was correlated with vertical individualism and vertical collectivism but unrelated to horizontal collectivism. Horizontal individualism was unrelated to authoritarianism except in post-Communist societies whose recent history presumably made salient the incompatibility between state authority and self-determination.
Semi-solid metal alloys, as used in industrial thixoforming, have a special microstructure of globular grains suspended in a liquid metal matrix. The complex rheological properties are strongly influenced by the local solid fraction, particle shape, particle size and state of agglomeration. It was analysed how the microstructure develops in dependence of the shear rate and cooling rate during the solidification and it was observed that the average particle size increased with increasing shear rate and decreasing cooling rate. In order to account for those phenomena, the rate of crystal growth and the relationship between average particle diameter and viscosity was modelled by applying the Sherwood two-film model for the mass transport. The dependence of the viscosity from the particle size were modelled with a modified Krieger–Dougherty model. Based on the rheological and microstructural observations an evaluation method was elaborated that allows for the construction of objective master curves that are independent of the particle growth during the experimentation. The isothermal experiments for the characterisation of the rheological behaviour consisted of step-change of shear-rate and yield-stress experiments. From the experimental data the steady-state flow curves could be determined as well as the time-dependent relaxation of the shear stress after a change of shear rate. The steady-state rheological behaviour was found to be shear thinning. Nevertheless, immediately after a shear-rate change an overshoot was observed that resulted from a short-time shear-thickening behaviour. The yield stress was found to strongly depend on the microstructure and the degree of agglomeration of the solid phase. With increasing rest time the yield stress was increasing strongly, because of the agglomeration of the solid particles. Based on the step-change of shear-rate experiments a single-phase flow has been developed that consists of a modified Herschel–Bulkley approach and accounts for the thixotropic as well as for the yield-stress behaviour of the alloys.
Every modern institution involved in higher education needs a Learning Management System (LMS) to handle learning and teaching processes. It is necessary to offer e.g. electronic lecture materials to the students for download via the internet. In some educational contexts, it is also necessary to offer internet tutorials to be able to give the students more personal support and accompany them through the whole lecture period. Many organisations have introduced commercial LMS and gained the experience that monolithic solutions do not fulfil the dynamic requirements of complex educational institutions and are very cost-intensive. Therefore, many universities face the decision to stick to their commercial LMS or to switch to a potentially more cost-effective and flexible solution, for instance by adopting available Open Source LMS. Since we have made profound experience in developing and operating an Open Source LMS, this contribution enlightens the main characteristics of this alternative. This paper describes a use case dealing with a full product lifecycle (development, deployment, use and evaluation) of an Open Source LMS at the University of Muenster (Germany). It identifies relevant instruments and aspects of system design which software architects in practical application domains should pay attention to.
Companies and R&D institutions increasingly collaborate not only in isolated projects but also in knowledge-based networks. In those networks, participants combine expertise and applied problems to generate both ‘problem-solving knowledge’ and specialized knowledge: during the process of common problem-solving each partner acquires some of the specialized knowledge of the other partners as well as the newly generated problem-solving knowledge. This article examines the basic principles involved and provides a simple mathematical description of the step-by-step accumulation of knowledge through the solving of applied problems in a knowledge-based network. The rate of increase of the total amount of available knowledge in the network is derived and implications for the orientation of R&D institutes and companies are set out.
Model Driven Architecture (MDA): Integration and Model Reuse for Open Source eLearning Platforms
(2005)
Business-driven development favors the construction of process models
at different abstraction levels and by different people. As a consequence, there is a demand for consolidating different versions of process models by merging them. In this paper, we study a basic scenario, derive requirements and present a prototype for detecting and resolving changes between process models.
The purpose of this study was to evaluate which mode of birth first-time mothers in Germany and in the USA prefer and how this desire is related to maternal well-being and sense of coherence. The paper describes emotional well-being postpartum in relationship to mode of birth. For data collection a prospective cohort study was conducted in both countries. A self-administered questionnaire including validated instruments (WHO-5 Well-Being Index, Sense of Coherence Scale and Edinburgh Postnatal Depression Scale) was used. Results showed that only a few of the pregnant women in Germany and the USA preferred to deliver by caesarean section. There was a relationship between women's well-being, women's sense of coherence and the preferred mode of birth. The majority of women who wanted a caesarean section delivered in this way. No relationship was found between women's well-being and the type of birth experienced. Well-being in both samples generally decreased after giving birth, but there was a difference between German and American first-time mothers on the postpartum well-being and depression scores. German mothers had a higher postnatal quality of life and lower postnatal depression scores. To give families the opportunity for a healthy start, midwives and obstetricians should try to enhance women's well-being and they should give some thought to health professionals' decision-making processes. Expanded postpartum care might have an impact on women's depression scores..
When speaking about eBusiness as applied to the healthcare market two questions arise immediately. Firstly, what is eBusiness? Secondly, why is eBusiness in healthcare different from eBusiness in other sectors?
Within the arena of eBusiness in healthcare, the focus is on purchasing and selling online as the most advanced application. In this book, the Authors consider both the perspective of the healthcare providers and that of the suppliers, showing the interdependencies between the two and developing concepts for a new synergistic cooperation.
eBusiness in Healthcare raises awareness of and interest in electronically mediated business processes in healthcare to a large audience including healthcare informaticians, medical business managers, clinicians, pharmacists and scientists. By taking an international approach to the topic the authors demonstrate the many similarities of eBusiness problems and their solutions among different countries which permits analysis of the differences that are often defined by the national healthcare systems and their rules. Case studies from healthcare institutions and from suppliers in the US, the UK and Germany will illustrate the achievements, barriers and future plans, thus enabling newcomers to learn from previous experience.
Clinicians will gain significant insight by this book which demonstrates the interconnection between patient care processes and management issues at the level of medical supplies. The book also makes a plea for a multidisciplinary effort, to enable the right product to be procured for the right patient. As a rather new discipline, eBusiness in healthcare needs further scientific backing. Against this background, this book will not only provide answers but will also raise questions for future research. Managing change and innovation and establishing the critical mass for eBusiness in healthcare is a major undertaking. The aim of this book is to support this process.
Hedonism
(2009)
Purpose
– The purpose of this paper is to present the current empirical research examining communication, compensation and logistics as elements of product crises management in retailing.
Design/methodology/approach
– The advantages and disadvantages of these three elements of crises response strategies are juxtaposed drawing on relevant empirical research. For each element of crises response the major findings of research are summarized and shown how it relates to crisis management. Needs for further research that would be necessary to solidify recommendations to retail managers are derived.
Findings
– The investigation finds that both communicative and compensatory response elements as well as the retailer's logistics can positively influence evaluations of customers directly and indirectly affected by product problems thus enhancing brand equity. This in turn will serve to increase consumers' trust in the retailer that could win him new customers and generally benefit his reputation.
Research limitations/implications
– Most of the discussed research rests on the assumption of a given (extraneous) crisis response strategy of the manufacturer. Potential problems concerning the co‐ordination or implementation of manufacturer and retailer strategies remain open to question. Additionally, further research should examine which strategies are appropriate to which crisis situation.
Practical implications
– Materially, over‐compensating customers often has a detrimental effect on solving the crisis. The impact of different compensation types on crisis resolution mostly depends on their respective signalling capabilities, the product problem constituting the crisis and consumer attributions. The use and the effects of a communicative crisis response largely depend on moderating factors such as the retailer's reputation or the existence of strong retail brands and consumer expectations. Elements of logistics seem to support the effects of communication and compensation on crisis resolution but are hardly capable of solving a product‐harm crisis.
Originality/value
– The role of retailers in product‐harm crisis management has been widely neglected in research although such crises are predominant. This paper outlines the current empirical work on how different crises response elements may contribute to solving a product‐harm crisis for retailers. It derives relevant avenues for further research as well as useful insights to practitioners considering to using such response elements in their own crisis management strategy.
Employee cooperation is fundamental for accomplishing successful organizational change processes. Therefore, it is important to understand how employees' cooperation can be supported in the context of organizational change. Based on the group engagement model, we hypothesized how procedural justice affects organizational identification which in turn should have an affect on employees' cooperation (commitment to change, values-congruence fit, and change-supporting behavior) in the context of organizational change. To test the fit of the proposed model, structural equation models were calculated using both cross-sectional (N = 315) and longitudinal (N = 110) data of academic staff at a German university. Results indicated adequate data fit to our proposed model and revealed that organizational identification mediated the positive effects of procedural justice on affective commitment to change and values-congruence fit. The assumed mediating effect of organizational identification on the positive relationship between procedural justice and change-supporting behavior could only be supported using cross-sectional data.
Purpose
The purpose of this paper is to provide a deeper understanding of how transformational leadership relates to followers' innovation implementation behavior, the psychological mechanisms of this relationship, and the role of individual perceptions of climate for initiative.
Design/methodology/approach
Perceptual data were collected from 198 employees in lower and middle management positions of a multinational automotive corporation. Relationships were tested using hierarchical regression analysis.
Findings
Results demonstrate that transformational leadership was strongly related to followers' innovation implementation behavior and that the nature of this relationship was moderated by followers' levels of perceived climate for initiative. Additionally, commitment to change fully mediated the relationship between transformational leadership and followers' innovation implementation behavior.
Research limitations/implications
The paper is based on a cross‐sectional design. A causal interpretation requires studies with experimental or longitudinal designs.
Practical implications
Companies should invest in transformational leadership training and in the selection of supervisors with this leadership style before initiating the implementation of innovations. Enhancing contextual factors, such as a perceived climate for initiative, should be promoted by integrating them into organizations' reward systems.
Originality/value
The paper is one of the first to investigate the relationship between transformational leadership and followers' innovation implementation behavior. It specifies the organizational contexts under which transformational leadership is most likely related to innovation implementation behavior, and those in which such a relationship is unlikely to occur.
Health-related quality of life (HRQOL) in parents of children suffering from renal disease is often diminished by the illness burden experienced in daily life and by unfavorable ways of coping. Our aim was to examine the relationship between psychosocial strains perceived by parents, their ways of coping, and HRQOL. In an anonymous cross-sectional study, parents completed a questionnaire concerning psychosocial strains, coping strategies, and HRQOL, as well as sociodemographic and illness parameters. Study participants were recruited in two outpatient dialysis centers. Participating in the study were 195 parents (105 mothers, 90 fathers; age 43 ± 8 years; representing 108 families) of children suffering from renal disease (age 12 ± 5 years). Parents of children with chronic renal failure reported moderate HRQOL with parents of children undergoing dialysis experiencing more limitations in quality of life than parents of children living with a kidney graft and parents of children undergoing conservative treatment. Mothers experienced lower HRQOL and higher psychosocial strains than fathers. HRQOL was predicted by the coping strategies “focusing on child” (β = –0.25), “improving marital relationship” (β = 0.24), “seeking social support” (β = –0.22) and “self-acceptation and growth” (β =0 .19) as well as parents′ perceived limitation by illness in daily life (β = –0.15; explained variance 57%). In the comprehensive care for families with a child suffering from a renal disease, screening for psychosocial strains and ways of coping, along with applying interventions to strengthen adaptive coping strategies, may be a preventative means of improving parents′ quality of life.
To ensure the quality of long-term care services has been one of the key elements of German long-term care insurance since its implementation in 1995. A joint agreement between insurers and service providers served as the baseline for quality assurance. Monitoring and control of quality in institutional and home based long-term care was performed by the insurers’ Medical Board. As a result of problems in some long-term care facilities reported in the media the Long-term Care System Reform Act of 2008 contained several provisions to ensure and improve the quality of services. The obligatory use of expert standards for the performance of particular nursing interventions and the establishment of a system of public reporting were the first measures implemented. The development of quality indicators has also been initiated. These routes to quality, their anticipated effects and remaining challenges will be addressed in this article.
The paper presents and analyses the structure and consequences of limits to growth for the global economy. Apart from the famous report for the Club of Rome, a wide range of related literature, which all caution against the idea of unrestricted growth, is also covered. In presenting side tracks in economics, major differences towards standard economic reasoning are highlighted; these are particularly centred on the concepts of technology, sustainability, and resources. One of the central conclusions is that technological progress alone cannot be the knight in shining armour to save the day amid increasing stress on the sides of sources and sinks of the global system. Further, oil production, consumption, and reserve patterns are discussed, emphasising that a continuous underestimation of the challenges ahead would be distressing. Finally, the development of non-advanced countries is hindered, as the diminishing availability of oil reserves could prove as a significant constraint.
During recent decades, many studies have shown that the successful restoration of species-rich grasslands is often seed-limited because of depleted seed banks and limited seed dispersal in modern fragmented landscapes. In Europe, commercial seed mixtures, which are widely used for restoration measures, mostly consist of species and varieties of non-local provenance. The regional biodiversity of a given landscape, however, can be preserved only when seeds or plants of local provenance are used in restoration projects. Furthermore, the transfer of suitable target species of local provenance can strongly enhance restoration success.
We review and evaluate the success of currently used near-natural methods for the introduction of target plant species (e.g. seeding of site-specific seed mixtures, transfer of fresh seed-containing hay, vacuum harvesting, transfer of turves or seed-containing soil) on restoration sites, ranging from dry and mesic meadows to floodplain grasslands and fens. Own data combined with literature findings show species establishment rates during the initial phase as well as the persistence of target species during long-term vegetation development on restoration sites.
In conclusion, our review indicates that seed limitation can be overcome successfully by most of the reviewed measures for species introduction. The establishment of species-rich grasslands is most successful when seeds, seed-containing plant material or soil are spread on bare soil of ex-arable fields after tilling or topsoil removal, or on raw soils, e.g. in mined areas. In species-poor grasslands without soil disturbance and on older ex-arable fields with dense weed vegetation, final transfer rates were the lowest. For future restoration projects, suitable measures have to be chosen carefully from case to case as they differ considerably in costs and logistic effort. Long-term prospects for restored grassland are especially good when management can be incorporated in agricultural systems.
The aim of this study is to assess the development of plant species diversity and species composition
over a seven-year period in two calcareous grasslands abandoned for nearly 20 years and to find out
which factors influence vegetation dynamics. In the Abava River valley, Latvia, different calcareous
grasslands were studied, one on the south-west facing slope and another on the north-east facing slope.
Vegetation analyses on permanent plots showed that dry calcareous grasslands can be resistant to deterioration for a long period of time – succession was slower than reported in many cases for Central and
Western Europe. None of the studied communities showed a decrease neither in total species number
recorded per community nor in average species richness per plot. Vascular plant species richness even
increased by 3–4 species per 1-m² plot in the grassland on the south-west facing slope. An unexpected
result of the research was that Calamagrostis epigeios did not expand in this grassland. This fact can be
explained by the influence of disturbances (drought, tree cutting) and local differences in soil parameters
and topography. In parts of the north-east exposed grassland, with deeper soils and better water availability, species diversity (Shannon index) decreased significantly in areas overgrown by Aegopodium
podagraria.
Der Bericht stützt sich auf Informationen, die von Zertifizierungsstellen und Experten in den einzelnen Ländern durch per E-Mail übermittelte Fragebögen und anschließende Telefoninterviews eingeholt wurden.
Es gibt große Unterschiede zwischen den Ländern in Bezug auf die Zertifizierung der (öffentlichen) Lebensmittelausgabe. In Dänemark gibt es ein freiwilliges System mit einer Bronze-, Silber- und Goldmedaille, die für zunehmende Mengen an Bio-Lebensmitteln vergeben werden. In Finnland gibt es keine obligatorische Zertifizierung der öffentlichen Bio-Lebensmittelausgabe, aber ein gut entwickeltes freiwilliges System mit fünf Stufen, die einen steigenden Anteil an Bio-Lebensmitteln vorsehen. Das System umfasst Beratung und ein Zertifikat, das bei der Vermarktung verwendet werden kann. In Italien ist die Zertifizierung nicht verpflichtend, aber es laufen Aktivitäten zur Einführung eines freiwilligen oder verpflichtenden Systems. In Norwegen und Deutschland ist die Zertifizierung der öffentlichen Bio-Lebensmittelausgabe obligatorisch.
Die befragten italienischen Experten begrüßten künftige gemeinsame Standards in diesem Bereich, während die anderen Länder mit besser etablierten Systemen keinen Änderungsbedarf sahen. In Bezug auf die Schulverpflegung wird die Zertifizierung von Bio-Lebensmitteln einen gewissen Mehraufwand bedeuten. Eine Zertifizierung wird jedoch dazu beitragen, das Vertrauen der Menschen in die Verpflegungsdienste zu stärken, die Nutzer zu informieren und so die Bemühungen zur Steigerung des Verbrauchs von Bio-Lebensmitteln zu vermitteln.
Adaptivity is prevalent in today’s software. Mobile devices
self-adapt to available network connections, washing machines
adapt to the amount of laundry, etc. Current approaches for engineering such systems facilitate the specification of adaptivity in the analysis and the technical design. However, the modeling of platform independent models for adaptivity in the logical design phase remains rather neglected causing a gap between the analysis and the technical design phase.
To overcome this situation, we propose an approach called Adapt Cases. Adapt Cases allow the explicit modeling of adaptivity with domain-specific means, enabling adaptivity to gather attention early in the software engineering process.
Since our approach is based on the concept of use cases it
is easy adoptable in new and even running projects that
use the UML as a specification language, and additionally,
can be easily incorporated into model-based development
environments.
Scientific Entrepreneurship: Raising A wareness of Entrepreneurship - Strategies ans Experiences
(2011)
Despite decades of empirical happiness research, there is still little evidence for the positive effect of economic growth on life satisfaction. This poses a major challenge to welfare economic theory and to normative conceptions of socio-economic development. This book endeavours to explain these findings and to make sense of their ethical implications.
While most of the existing literature on empirical happiness research is ultimately interested in understanding how to improve human lives and societal development, the ethical backdrop against which these findings are evaluated is rarely made explicit. In contrast to this, Professor Hirata focuses on the role happiness should play in an ethically founded conception of good development. Taking a development ethics perspective, this book proposes a nuanced conception of happiness that includes both its affective and its normative dimensions and embeds this in a comprehensive conception of good development.
The argument is that happiness should not be regarded as the only thing that determines a good life and that good development cannot sensibly be thought of as a matter of maximizing happiness. Happiness should rather be seen as an important indicator for the presence or absence of those concerns that really matter to people: the reasons that give rise to happiness. This book should be of interest to students and researchers of economics, psychology and development studies.
This research paper analyzes the role of pre-crisis
reputation for quality on consumers ’ perceptions of
product-related dangers and company responsibility
in product-harm crises with varying risk information.
We consider (non-) substantiated public
complaints incorporating low and moderate product-
related risks, as well as product-recall situations
involving serious risks to the health and safety of
consumers. Hypotheses are derived from theories
and concepts of consumer behavioural psychology.
These are then tested empirically by using an
online experiment. The effects of reputation are
analyzed across different crises contexts to derive
some general insights useful for crisis management.
In order to shed light on situational differences of
the reputation mechanism its effect on individual
crisis level will also be considered. In general, the
analysis fi nds that reputation for quality is capable
of positively infl uencing the perceptions of company
responsibility and thereby shielding the
manufacturer from receiving blame. However, an
established reputation for high product quality
prior to the crisis fails to positively impacting
consumers ’ perceptions of problem severity. The
crisis-specifi c effects of reputation turn out to be
ambivalent. On the basis of these fi ndings, recommendations
to crisis managers and relevant avenues
for future research are derived.
Health Telematics Europe
(2011)
The adoption and use of information technology (IT) in health care is influenced by many factors and depends on legal and cultural constraints prevailing in a country. While Europe is constantly coalescing on a political basis, health care is a sector still dominated by national legislation. Consequently, different types of national health care systems have existed throughout Europe for decades which now build the framework for the use of information and communication technology (ICT) by health care provider organizations. The following paragraphs will, therefore, provide a concise overview of the different types of national health care systems in Europe and will characterize the countries with regard to key indicators.
This study examined the relation between employees' perceived extent of change and adaptive performance, focusing on the roles of expressive suppression (i.e. the habit of suppressing overt expressions of emotion) at work and perceived strain. Analysing survey data of 153 employees in Germany with different occupational backgrounds via bootstrapping, the conceptual moderated indirect effect scheme was supported. As hypothesized, greater changes were associated with higher strain. Strain, in turn, was negatively related to adaptive performance. Although extent of change did not directly affect adaptive performance, the data supported the expected indirect relationship via strain. Finally, expressive suppression at work acted as a buffer of this indirect effect: extent of change was only negatively related to strain for employees low in suppression. In line with newer evidence, our results indicate that the suppression of overt emotional expressions at work can have positive effects under certain circumstances.
Objective
The aim of this study was to assess the influence of cranio-cervical posture on the maximal mouth opening (MMO) and pressure pain threshold (PPT) in patients with myofascial temporomandibular pain disorders.
Materials and Methods
A total of 29 patients (19 females and 10 males) with myofascial temporomandibular pain disorders, aged 19 to 59 years participated in the study (mean years±SD; 34.69±10.83 y). MMO and the PPT (on the right side) of patients in neutral, retracted, and forward head postures were measured. A 1-way repeated measures analysis of variance followed by 3 pair-wise comparisons were used to determine differences.
Results
Comparisons indicated significant differences in PPT at 3 points within the trigeminal innervated musculature [masseter (M1 and M2) and anterior temporalis (T1)] among the 3 head postures [M1 (F=117.78; P<0.001), M2 (F=129.04; P<0.001), and T1 (F=195.44; P<0.001)]. There were also significant differences in MMO among the 3 head postures (F=208.06; P<0.001). The intrarater reliability on a given day-to-day basis was good with the interclass correlation coefficient ranging from 0.89 to 0.94 and 0.92 to 0.94 for PPT and MMO, respectively, among the different head postures.
Conclusions
The results of this study shows that the experimental induction of different cranio-cervical postures influences the MMO and PPT values of the temporomandibular joint and muscles of mastication that receive motor and sensory innervation by the trigeminal nerve. Our results provide data that supports the biomechanical relationship between the cranio-cervical region and the dynamics of the temporomandibular joint, as well as trigeminal nociceptive processing in different cranio-cervical postures.
The well-documented social gradient in health in the developed world will not just disappear on its own. Tackling health inequalities by introducing a universal coverage healthcare system recently became an important notion in the U.S. Using cross-sectional data from Germany which has maintained its compulsory egalitarian healthcare system for more than 50 years now, we apply logistic and negative binomial regression to uncover utilisation behaviour patterns under universal coverage. We find that lower education and unemployment raise the risks for all diseases under consideration. Unemployment increases the chance of contacting a physician, while income and education do not apparently affect the healthcare utilisation behaviour. Those diseases concentrated among unemployed and less educated, however, are associated with intensified healthcare utilisation. We conclude that universal coverage may make access to health care easier for those facing the worst health; the unemployed and lower educated.
Musicians often suffer from disorders of the musculoskeletal system that are related to their instrument playing. Among the most frequent symptoms are complaints in the shoulder-neck area. Radial shock wave therapy is increasingly used in trigger point treatment, but only few high-level studies have examined of shock wave therapy used together with physical therapy in the treatment of musicians. METHODS: This randomized blinded study in musicians (n = 26) with nonspecific shoulder-neck problems was done to examine the effect of shock wave therapy in addition to current physical therapy on the symptoms and quality of life of the musicians as well as their habits of playing musical instruments (intervention group shock wave vs reference group placebo). The effects were documented by a pain VAS and other instruments. A questionnaire designed specifically for musicians (with initial and final questions) recorded intensity and manifestation of pain and handicaps in daily life, especially when practicing and playing. The Shoulder Pain and Disability Index (SPADI) and the Neck Pain Disability Index Questionnaire (NPDIQ) were also used. RESULTS: Both groups reported subjective improvement in pain, but significance was found only for the intervention group for the SPADI and NPDIQ. CONCLUSIONS: Trigger point treatment with radial shock wave used in combination with physical therapy makes the subjects feel temporarily relieved of neck and shoulder pains. The effects of radial shock wave without physical therapy will need to be examined in further studies.
Background: Informal caregiving by family members is the most common way of caring for sick people at home. However, the number of care arrangements, in which both formal (nurses) and informal (family members) caregivers are involved, is considerable and increasing. Despite implicit assumptions in research that the involvement of nurses in home care arrangements is inherently beneficial, there is evidence that their involvement may have a destabilising effect.
Aims: The purpose of this study was to investigate the relationship between nurses and family caregivers and its impact on the actual care that is provided.
Method: Eighty-eight interviews with family caregivers (n = 57) and nurses (n = 31) were conducted in Germany and analysed according to the Grounded Theory methodology.
Findings: The relationship between formal and informal care is an encounter of two quite different perspectives that is focused on a negotiation process about caregiving work and the helpfulness of the actions taken and the interventions used. For family caregivers, it is determined by the goal of facilitating work and care for their sick family member. The nurses’ work is characterised by a process of shaping different realities in different homes. The results reveal the processes that lead to the involvement of nurses into home care arrangements and offer a deeper understanding of the negotiation processes between formal and informal caregivers.
Conclusions: To provide sufficient support in home care, nurses need the ability to engage in negotiation processes that take the whole home care arrangement into account. Developmental work is needed to design services that are helpful for family caregivers.
In the past few years, studies have been carried out to record and analyse the consumer behaviour of manual dishwashing. Manual dishwashing in households is performed in many ways that influence the use of resources. Furthermore, knowledge has been gained on the basis of experiments on how to optimize the use of resources in manual dishwashing. Optimization here means achieving the best possible cleaning performance with a minimum input of resources. This experimental knowledge, combined with the experience of everyday life, was transferred into Best Practice Tips.
The aim of this study is to verify whether it is possible to save resources while applying these Best Practice Tips in comparison with the consumers' previous behaviour.
In a laboratory study, 53 consumers from Europe (23 Germans, 30 other Europeans) were asked to apply the Best Practice Tips while washing up 12 place settings of dishes. The data gained were compared with that of previous studies recording consumers' everyday behaviour while washing up the same amount of dishes. The sample consisted of 113 European consumers and the sample of the second study consisted of 60 Europeans.
On average, the 53 test participants applying the Best Practice Tips used around 60% less water, 70% less energy and 30% less detergent compared with the average everyday behaviour the other subjects used. Additionally, they achieved a slightly better cleaning result. An evaluation questionnaire showed that the Best Practice Tips were, in general, highly accepted; however, some concerns were given about their exact application in everyday life. Because of the wide variation of washing-up habits and resource consumption among individuals, the confidence intervals of the studies are rather large. The results should therefore be seen as tendencies on how resource savings are possible when people are trained how to optimize resources in manual dishwashing. Nevertheless, this study should be the basis for further ones in which the learning is verified in everyday life and over a longer period of time.
Comparison of variable liming strategies in organic farming systems using online pH-measurements
(2011)
In organic farming, soil pH is one of the most important soil characteristics affecting nutrient availability, soil microbial activity and plant growth. Using the soil pH mapping sensor system Veris MSP, detailed information on in-field variability of soil pH can be obtained enabling spatial variable lime application. Scenario calculations for an organically managed field in Germany reveal that compared with the standard farm practice (i.e. uniform liming rate) variable lime application does not lead to higher costs while soil pH is optimized in different field zones resulting in increased crop productivity. Using two different lime qualities increases liming costs moderately but gives farmers the chance to increase pH quickly in extreme low pH areas.
Every culture has its paradise vision: desirable and external conditions which, inside the concerned culture, are infrequently observed or difficult to realize and are linked to one another. This cross-cultural study compares well-being inChina,Bulgaria,FranceandGermany. The cultural patterns of the culture are differently, but well-being is easier to achieve if people adapt to their cultural patterns. The adjustment (positive subjective culture) is formed by culture-specific content and needs different in regards to different cultures.