Conceptualising Four Categories of Behaviours: Implications for Implementation Strategies to Achieve Behaviour Change

Background: Effectiveness of implementation strategies is influenced by the extent to which they are based on appropriate theories concerning the behaviours that the strategies intend to impact. Effectiveness may be limited simply because the strategies are based on theories that are limited in scope or are derived from partially inaccurate assumptions about the behaviours in question. It may therefore be important to combine insights from various theories to cover the range of influences on the behaviours that will be changed. Aim: This article aims to explore concepts, theories and empirical findings from different disciplines to categorise four types of behaviours and discuss the implications for implementation strategies attempting to change these behaviours. Influences on behaviours: Multilevel influences on behaviours are dichotomized into individual-level and collective-level influences, and behaviours that are guided by conscious cognitive processes are distinguished from those that rely on non-conscious processing. Combining the two dimensions (levels and cognitive modes) creates a 2 x 2 conceptual map consisting of four categories of behaviours. Explicitly conceptualising the levels and cognitive modes is crucial because different implementation strategies are required depending on the characteristics of the behaviours involved in the practise that needs to be changed. Conclusion: The 2 x 2 conceptual map can be used to consider and reflect on the nature of the behaviours that need to be changed, thus providing guidance on the type of theory, model or framework that might be most relevant for understanding and facilitating behaviour change

Dimensions of Researcher Vulnerability in Qualitative Health Research and Recommendations for Future Practice

Funding Information: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this paper: This work was supported by the German Federal Ministry of Education and Research (no. 01GP2191). Publisher Copyright: © The Author(s) 2023.Vulnerability has typically been addressed in the context of research ethics from the point of view of participants, with a focus on how to prevent the potential or exacerbation of existing harm caused by the power and role asymmetries between researchers and participants. However, more recent approaches to research ethics question whether researchers are, by definition, located in a privileged position during the research process and safe from any kind of vulnerability. In line with this, we reflect on the dimensions of researcher vulnerability specific to studies using a qualitative methodology in health research. Our argument is that participants and researchers should be on the receiving end of efforts to implement ethical procedures and protection from harm. Based on the autoethnographic analysis of our experiences as qualitative health researchers, this paper aims to identify dimensions of researcher vulnerability, and draw out relevant recommendations for practice. The reflections upon which this paper is based emerged during a spring school focusing on research ethics in qualitative health research, during which we discussed situations from our own research experience which left us feeling vulnerable. We identify four dimensions related to the experience of vulnerability (reciprocity; emotional labor; application of ethical standards; reversed power asymmetries) and five crosscutting aspects relating to these dimensions (researching sensitive topics; researching in contexts of vulnerability, poverty and structural violence; being a novice; lacking adequate support; insufficient time and space for ethical reflexivity). Our recommendations address particular challenges for these dimensions, and center on the role of reflexivity, as one of the cornerstones for enabling ethical qualitative research practice, requiring us to acknowledge and address our own vulnerability and positionality. Autoethnographic exercises are particularly useful for zooming in on ethically important moments in research related to researcher vulnerability and fruitful for identifying resources to respond to such challenges in the future.publishersversionpublishe

Trees over Infinite Structures and Path Logics with Synchronization

We provide decidability and undecidability results on the model-checking problem for infinite tree structures. These tree structures are built from sequences of elements of infinite relational structures. More precisely, we deal with the tree iteration of a relational structure M in the sense of Shelah-Stupp. In contrast to classical results where model-checking is shown decidable for MSO-logic, we show decidability of the tree model-checking problem for logics that allow only path quantifiers and chain quantifiers (where chains are subsets of paths), as they appear in branching time logics; however, at the same time the tree is enriched by the equal-level relation (which holds between vertices u, v if they are on the same tree level). We separate cleanly the tree logic from the logic used for expressing properties of the underlying structure M. We illustrate the scope of the decidability results by showing that two slight extensions of the framework lead to undecidability. In particular, this applies to the (stronger) tree iteration in the sense of Muchnik-Walukiewicz.Comment: In Proceedings INFINITY 2011, arXiv:1111.267

Versailles project on advanced materials and standards (VAMAS) interlaboratory study on measuring the number concentration of colloidal gold nanoparticles

We describe the outcome of a large international interlaboratory study of the measurement of particle number concentration of colloidal nanoparticles, project 10 of the technical working area 34, "Nanoparticle Populations" of the Versailles Project on Advanced Materials and Standards (VAMAS). A total of 50 laboratories delivered results for the number concentration of 30 nm gold colloidal nanoparticles measured using particle tracking analysis (PTA), single particle inductively coupled plasma mass spectrometry (spICP-MS), ultraviolet-visible (UV-Vis) light spectroscopy, centrifugal liquid sedimentation (CLS) and small angle X-ray scattering (SAXS). The study provides quantitative data to evaluate the repeatability of these methods and their reproducibility in the measurement of number concentration of model nanoparticle systems following a common measurement protocol. We find that the population-averaging methods of SAXS, CLS and UV-Vis have high measurement repeatability and reproducibility, with between-labs variability of 2.6%, 11% and 1.4% respectively. However, results may be significantly biased for reasons including inaccurate material properties whose values are used to compute the number concentration. Particle-counting method results are less reproducibile than population-averaging methods, with measured between-labs variability of 68% and 46% for PTA and spICP-MS respectively. This study provides the stakeholder community with important comparative data to underpin measurement reproducibility and method validation for number concentration of nanoparticles

Versailles project on advanced materials and standards (VAMAS) interlaboratory study on measuring the number concentration of colloidal gold nanoparticles

We describe the outcome of a large international interlaboratory study of the measurement of particle number concentration of colloidal nanoparticles, project 10 of the technical working area 34, "Nanoparticle Populations" of the Versailles Project on Advanced Materials and Standards (VAMAS). A total of 50 laboratories delivered results for the number concentration of 30 nm gold colloidal nanoparticles measured using particle tracking analysis (PTA), single particle inductively coupled plasma mass spectrometry (spICP-MS), ultraviolet-visible (UV-Vis) light spectroscopy, centrifugal liquid sedimentation (CLS) and small angle X-ray scattering (SAXS). The study provides quantitative data to evaluate the repeatability of these methods and their reproducibility in the measurement of number concentration of model nanoparticle systems following a common measurement protocol. We find that the population-averaging methods of SAXS, CLS and UV-Vis have high measurement repeatability and reproducibility, with between-labs variability of 2.6%, 11% and 1.4% respectively. However, results may be significantly biased for reasons including inaccurate material properties whose values are used to compute the number concentration. Particle-counting method results are less reproducibile than population-averaging methods, with measured between-labs variability of 68% and 46% for PTA and spICP-MS respectively. This study provides the stakeholder community with important comparative data to underpin measurement reproducibility and method validation for number concentration of nanoparticles

Versailles project on advanced materials and standards (VAMAS) interlaboratory study on measuring the number concentration of colloidal gold nanoparticles

We describe the outcome of a large international interlaboratory study of the measurement of particle number concentration of colloidal nanoparticles, project 10 of the technical working area 34, "Nanoparticle Populations" of the Versailles Project on Advanced Materials and Standards (VAMAS). A total of 50 laboratories delivered results for the number concentration of 30 nm gold colloidal nanoparticles measured using particle tracking analysis (PTA), single particle inductively coupled plasma mass spectrometry (spICP-MS), ultraviolet-visible (UV-Vis) light spectroscopy, centrifugal liquid sedimentation (CLS) and small angle X-ray scattering (SAXS). The study provides quantitative data to evaluate the repeatability of these methods and their reproducibility in the measurement of number concentration of model nanoparticle systems following a common measurement protocol. We find that the population-averaging methods of SAXS, CLS and UV-Vis have high measurement repeatability and reproducibility, with between-labs variability of 2.6%, 11% and 1.4% respectively. However, results may be significantly biased for reasons including inaccurate material properties whose values are used to compute the number concentration. Particle-counting method results are less reproducibile than population-averaging methods, with measured between-labs variability of 68% and 46% for PTA and spICP-MS respectively. This study provides the stakeholder community with important comparative data to underpin measurement reproducibility and method validation for number concentration of nanoparticles

Negotiating gender justice and cultural diversity : a qualitative study about Nari Adalats (women's courts) in Rural Karnataka, South India

Potthoff S. Negotiating gender justice and cultural diversity : a qualitative study about Nari Adalats (women's courts) in Rural Karnataka, South India. Bielefeld; 2016

Decision Criteria for the Ethically Reflected Choice of a Member Check Method in Qualitative Research: A Proposal for Discussion

Methodologists recommend member checking (MC) to increase the credibility of results from qualitative studies. In this procedure, the researcher’s categories, hypotheses and interpretations can be verified or corrected by respondents, and the latter can add information. Various methods are available for conducting this procedure. However, in addition to methodological issues, MC also raises ethical questions. In this article, we investigate which member check method (MCM) is most appropriate for a particular study from an ethical perspective. Based on a literature review about ethical issues in different MCMs and ethical principles contained in guidelines for research ethics, we develop seven decision criteria that can facilitate an ethically reflected decision for a particular MCM. Accordingly, we consider the principles of beneficence, justice, scientific quality, informed consent and avoiding harm, which are widely accepted in research ethics. In addition, we recommend that participants’ wishes and concerns regarding the MC be inquired about and considered

"Voluntary in quotation marks"

$\bf Background:$ Psychological pressure refers to communicative strategies used by professionals and informal caregivers to influence the decision-making of service users and improve their adherence to recommended treatment or social rules. This phenomenon is also commonly referred to as informal coercion or treatment pressure. Empirical studies indicated that psychological pressure is common in mental healthcare services. No generally accepted definition of psychological pressure is available to date. A first conceptual analysis of psychological pressure focused on staff communication to promote treatment adherence and distinguished between persuasion, interpersonal leverage, inducements and threats. $\bf Aim:$ The aim of this study was to develop a conceptual model of psychological pressure based on the perspectives of service users. $\bf Methods:$ Data were collected by means of semi-structured interviews. The sample consisted of 14 mental health service users with a self-reported psychiatric diagnosis and prior experience with coercion in mental healthcare. We used theoretical sampling and contacted participants via mental healthcare services and self-help groups to ensure a variety of attitudes toward the mental healthcare system in the sample. The study was conducted in Germany from October 2019 to January 2020. Data were analyzed according to grounded theory methodology. $\bf Results:$ The study indicated that psychological pressure is used not only to improve service users' adherence to recommended treatment but also to improve their adherence to social rules; that it is exerted not only by mental health professionals but also by relatives and friends; and that the extent to which service users perceive communication as involving psychological pressure depends strongly on contextual factors. Relevant contextual factors were the way of communicating, the quality of the personal relationship, the institutional setting, the material surroundings and the level of convergence between the parties' understanding of mental disorder. $\bf Conclusions:$ The results of the study highlight the importance of staff communication training and organizational changes for reducing the use of psychological pressure in mental healthcare services

FGF21 resistance is not mediated by downregulation of beta-klotho expression in white adipose tissue

Objective: Fibroblast growth factor 21 (FGF21) is an endocrine hormone that regulates metabolic homeostasis. Previous work has suggested that impairment of FGF21 signaling in adipose tissue may occur through downregulation of the obligate FGF21 co-receptor, β-klotho, which leads to “FGF21 resistance” during the onset of diet-induced obesity. Here, we sought to determine whether maintenance of β-klotho expression in adipose tissue prevents FGF21 resistance and whether other mechanisms also contribute to FGF21 resistance in vivo. Methods: We generated adipose-specific β-klotho transgenic mice to determine whether maintenance of β-klotho expression in adipose tissue prevents FGF21 resistance in vivo. Results: β-klotho protein levels are markedly decreased in white adipose tissue, but not liver or brown adipose tissue, during diet-induced obesity. Maintenance of β-klotho protein expression in adipose tissue does not alleviate impaired FGF21 signaling in white adipose or increase FGF21 sensitivity in vivo. Conclusions: In white adipose tissue, downregulation of β-klotho expression is not the major mechanism contributing to impaired FGF21 signaling in white adipose tissue. Keywords: FGF21, Resistance, Betaklotho, Obesity, Adipos