Segregation, precipitation, and \alpha-\alpha' phase separation in Fe-Cr alloys: a multi-scale modelling approach

Segregation, precipitation, and phase separation in Fe-Cr systems is investigated. Monte Carlo simulations using semiempirical interatomic potential, first-principles total energy calculations, and experimental spectroscopy are used. In order to obtain a general picture of the relation of the atomic interactions and properties of Fe-Cr alloys in bulk, surface, and interface regions several complementary methods has to be used. Using Exact Muffin-Tin Orbitals method the effective chemical potential as a function of Cr content (0-15 at.% Cr) is calculated for a surface, second atomic layer and bulk. At ~10 at.% Cr in the alloy the reversal of the driving force of a Cr atom to occupy either bulk or surface sites is obtained. The Cr containing surfaces are expected when the Cr content exceeds ~10 at.%. The second atomic layer forms about 0.3 eV barrier for the migration of Cr atoms between bulk and surface atomic layer. To get information on Fe-Cr in larger scales we use semiempirical methods. Using combined Monte Carlo molecular dynamics simulations, based on semiempirical potential, the precipitation of Cr into isolated pockets in bulk Fe-Cr and the upper limit of the solubility of Cr into Fe layers in Fe/Cr layer system is studied. The theoretical predictions are tested using spectroscopic measurements. Hard X-ray photoelectron spectroscopy and Auger electron spectroscopy investigations were carried out to explore Cr segregation and precipitation in Fe/Cr double layer and Fe_0.95Cr_0.05 and Fe_0.85Cr_0.15 alloys. Initial oxidation of Fe-Cr was investigated experimentally at 10^-8 Torr pressure of the spectrometers showing intense Cr_2O_3 signal. Cr segregation and the formation of Cr rich precipitates were traced by analysing the experimental spectral intensities with respect to annealing time, Cr content, and kinetic energy of the exited electron.Comment: 16 pages, 14 figures, 52 reference

Factors associated with subsequent diabetes-related self-care activities: The role of social support and optimism

Aim This study aimed to explore how social support (external factor), optimism (internal factor) and their interaction associated with diabetes-related self-care activities (DRSCA) over 3 months among people with type 2 diabetes mellitus (T2DM). Design Both questionnaire-based and telephone-based survey were used. The data were collected face to face, the first time by questionnaire and the second time by telephone. Methods One hundred and fifty-five patients completed valid survey questionnaires (response rate was about 70% in the first and 62% in the second round). The association of social support and optimism with subsequent DRSCA was examined after adjusting for demographics and disease information. Results Based on results, optimism was significantly associated with subsequent DRSCA. In the dimensions of social support, objective social support and support use were significantly associated with subsequent DRSCA. The results showed that the mediation of optimism between the dimensions of social support and DRSCA was not significant after controlling for covariates. The results also indicated that social support and optimism played directly an important role in improving diabetes-related self-care activities

Measuring Quality of Care: A Rasch Validity Analysis of the Good Nursing Care Scale

BACKGROUND: Patient-centeredness is emphasized in both health policies and practice, calling for reliable instruments for the evaluation of the quality of nursing care.PURPOSE: The purpose was to analyze the psychometric properties of the Good Nursing Care Scale (GNCS) in a sample of surgical patients and nurses.METHODS: An explorative cross-sectional study design was used. Data were collected with the 40-item GNCS from surgical patients (n = 476) and nurses (n = 167) in Finland. The data were analyzed with Rasch analysis.RESULTS: The GNCS provided evidence of unidimensionality with acceptable goodness-of-fit to the Rasch model in both samples. Person-separation validity was acceptable. Person misfit was reasonable. The Rasch-equivalent Cronbach α was 0.81 (patient data) and 0.88 (nurse data).CONCLUSIONS: The findings support that the GNCS is a psychometrically sound instrument that can be used in measuring the quality of nursing care, from the perspective of both patients and nurses.</div

Wrongdoing and whistleblowing in health care

AIM(S): To describe healthcare professionals' experiences of observed wrongdoing and potential whistleblowing acts regarding it. The main goal is to strengthen the whistleblowing process described based on the existing literature and to make it more visible for future research.DESIGN: A descriptive cross-sectional survey.METHODS: Data were collected between 26 June 2015-17 July 2015 from the Finnish trade union's membership register, electronically using one open question. A total of 226 healthcare professionals participated providing written narratives, which were analysed using inductive content analysis.FINDINGS: The whistleblowing process in health care was strengthened, identifying the content of observed wrongdoings and whistleblowing acts regarding them. Three themes were identified: wrongdoing related to patients, healthcare professionals, and healthcare managers. Whistleblowing acts were performed internally, externally, or left undone. Three main paths: internal, external, and no whistleblowing, between an observation of wrongdoing and whistleblowing act were identified.CONCLUSION: The whistleblowing process should be further developed and ethically effective programmes and interventions should be developed for increasing whistleblowing and preventing wrongdoing in health care.</p

The association of diabetes-related self-care activities with perceived stress, anxiety, and fatigue: a cross-sectional study

Purpose: Many people with type 2 diabetes (T2DM) do not sustain sufficient diabetes-related self-care activities (DRSCA) in their daily lives. To provide additional information about the positive influence of DRSCA, this study was conducted to examine whether DRSCA were associated with reduced perceived stress, anxiety, and fatigue among people with T2DM and to explore the level of DRSCA, perceived stress, anxiety, and fatigue and their association with background information.Patients and methods: This study was a cross-sectional survey including 251 participants aged 18 years and older recruited from two hospitals in the eastern part of China. The study utilized self-report questionnaires that consisted of background information, DRSCA, perceived stress, anxiety, and fatigue. Hierarchical multiple regression analysis was conducted to explore the association of DRSCA with perceived stress, anxiety, and fatigue while adjusting for background information.Results: The results indicated that the level of self-care activities, stress, and fatigue was around middle level. The prevalence of anxiety was 19%. A high level of DRSCA was likely to reduce perceived stress but was not linked to anxiety and fatigue. Women were more susceptible to stress and anxiety, and people who had diabetes for >5 years were more likely to have anxiety. The background information included diabetes duration, standardized diabetes education, and high social support, all of which are factors that may influence DRSCA.Conclusion: The findings suggest that improving the level of DRSCA might effectively reduce perceived stress. The potential benefits of DRSCA can provide both motivational and evaluative data for self-care programs. In addition, the findings show that DRSCA were not linked to anxiety and fatigue, which implies that their positive influence on anxiety and fatigue may be offset by the load of frequent DRSCA. It is suggested that helping patients to make tailored plans to integrate DRSCA into their daily lives is needed. Meanwhile, in the background information, it is suggested that standardized diabetes education and high social support can benefit DRSCA; in improving psychological health, more attention should be paid to women and patients with diabetes duration >5 years

Association between diabetes-related self-care activities and positive health: A cross-sectional study

Objectives: The study aimed to examine the diabetes-related self-care activities (DRSCA) in association with positive health consisting of resilience, subjective well-being (SWB) and disease-related quality of life (DRQoL), and the associations of background information with resilience, SWB and DRQoL.Design: A cross-sectional study.Methods: A convenience sample of people with type 2 diabetes (T2DM) was recruited from two tertiary hospitals in eastern China. Self-reported survey data included DRSCA, resilience, SWB, DRQoL, and background information comprising demographics and social support. Data were analysed using hierarchical multiple regression analyses.Results: Two hundred and forty-six valid questionnaires were analysed. Among the components of positive health, hierarchical multiple regression analysis showed that DRSCA were significantly associated with improved SWB (β=0.140, p=0.020), but not with resilience and DRQoL after adjusting for background information. Participants with higher level of education had higher resilience and men had higher SWB than women. Social support (β=0.186, p=0.003) in Model 1 and resilience (β=0.298, pConclusions: This study indicated an association between DRSCA and one component of positive health, namely SWB. This finding could help motivate patients to perform DRSCA and to improve SWB in people with T2DM. In addition, the fact that demographics, for example, gender, were associated with SWB and education was associated with resilience also needs to be accommodated when aiming to improve SWB and build resilience.</p

Being respected by nurses: Measuring older patients' perceptions

AIM AND OBJECTIVE: To investigate older patients' perceptions of respect in hospital nursing care and to test a newly developed instrument measuring the phenomenon.BACKGROUND: Respect manifests itself in the older patient-nurse relationship in terms of nurses being with and doing for the patient. Empirical studies investigating respect from the older patients' perspective are rare. There is a need to maintain respectful behaviours and attitudes within hospital-based nursing practice. Furthermore, there is a lack of instruments measuring respect in the care provided by nurses.DESIGN AND METHODS: A descriptive, cross-sectional explorative survey design was used. Data were collected between February and May 2016 by interviewing face-to-face 196 older patients in two hospitals in Finland. Respect was measured using the ReSpect scale (Parts A and B) developed for this study. Respect is based on the two dimensions of respect, nurses' Being with and Doing for patients. Data were analysed using descriptive and inferential statistical methods including the psychometric testing of the new instrument.RESULTS: Older patients perceived respect in their care frequently and to a great extent, although there were also shortcomings. The findings highlight the need to improve respect to patients in care delivery by showing an interest in their views, acknowledging them positively and supporting their individual capacities. A two-factor structure of the ReSpect scale Part A and a four-factor structure of the Part B were confirmed.CONCLUSIONS: Findings from this study suggest that older hospital patients perceived respect by nurses overall, but the area where there is the most room for improvement is that of listening and encouraging. The psychometric analysis demonstrated that the ReSpect scale shows promise in measuring respect.IMPLICATIONS FOR PRACTICE: The ReSpect scale could be a useful tool to measure respect, an important element of value-based health care.</p

Perceived quality of nursing care and patient education: a cross-sectional study of hospitalised surgical patients in Finland

OBJECTIVES: This study aims to analyse the relationship between patient education and the quality of surgical nursing care as perceived by patients. The background of the study lies in the importance of a patient-centred approach for both patient education and quality evaluation.DESIGN: This was a cross-sectional descriptive correlational study with surgical patients.SETTING: Data were collected in 2013 in one hospital district in Finland.PARTICIPANTS: 480 hospitalised surgical patients.METHODS: The data were collected using two structured instruments: one measuring the perceived quality of nursing care experienced by patients (Good Nursing Care Scale) and one measuring the received knowledge of hospital patients (RKhp). Data were analysed statistically using descriptive and inferential statistics to describe the sample and study variables. Pearson's correlation coefficients were used to analyse the association between the scales.RESULTS: Surgical hospital patients evaluated the level of the quality of nursing care as high; this was especially true with reference to the environment and staff characteristics, but not to collaboration with family members. Most (85%) of the patients had received sufficient knowledge preoperatively and they were familiar with the proceeding of their care and treatment after discharge; in particular, they had received bio-physiological knowledge, consisting of knowledge of the disease, symptoms and the physiological elements of care. The positive correlation between the perceived quality of surgical nursing care and received knowledge was strong, suggesting a positive relationship between patient education and improvement of the quality of nursing care.CONCLUSIONS: Based on the results, the quality of nursing care and patient education are interconnected. Thus, by improving patient education, the quality of nursing care can also be improved. It is particularly important to improve collaboration with family members and patients' own management strategies as well as the multidimensionality of educational knowledge.</p

Congruence between perceived and theoretical knowledge before and after an internet-based continuing education program about VLU nursing care

Background: Previous research has revealed nurses' knowledge gaps in venous leg ulcer (VLU) nursing care, and continuing education is needed. The closer nurses' perceived knowledge is to their evidence-based theoretical knowledge, the better possibilities they have to conduct evidence-based VLU nursing care.Objectives: To assess the congruence between nurses' perceived and theoretical knowledge about VLU nursing care before and after an internet-based education about VLU nursing care (eVLU).Design: Quasi-experimental study with intervention and comparison groups and pre- and post-measurements.Setting: Home health care in two Finnish municipalities.Participants: Nurses (n = 946) working in home health care were invited to participate. In the intervention group, 239 nurses and 229 nurses in the comparison group met the inclusion criteria, and they were all recruited to the study.Method: Nurses were divided into intervention and comparison groups with lottery between the municipalities. Nurses in both groups took care of patients with VLU according to their organizations' instructions. In addition to this, nurses in the intervention group received a 6-week eVLU while those in the comparison group did not. Data were collected with a questionnaire about perceived and theoretical knowledge before education, at six weeks, and at 10 weeks. The percentages of congruence were calculated at every measurement point, and the McNemar test was used to detect statistical significance of changes between measurements.Results: The increase of congruence was more often statistically significant in the intervention group than in the comparison group.Conclusion: The results support the hypothesis that the congruence between perceived and theoretical knowledge will be higher among nurses receiving eVLU. Because of the low participation and drop-outs, the results should be interpreted with caution.</p