Fluvial processes and landforms

The period 1965-2000 saw a sustained increase in research and publication on fluvial processes and landforms. The trend toward generalisation and/or mechanistic understanding, rather than site-specific history, continued. Research was multi-disciplinary, with important contributions from hydraulic engineers, geologists and physical geographers and from experimental and theoretical approaches as well as geomorphological and sedimentological fieldwork. Rapidly increasing computer power underpinned new measurement methods and greatly increased the scope of data analysis and numerical modelling. There were major advances in understanding the interaction of river process and form at reach scale, with growing recognition of differences between sand-bed and coarse-bed rivers. Field studies outside Europe and North America led to greater awareness of the diversity of river planforms and deposition landforms. Conceptual models of how rivers respond to natural or anthropogenic change in boundary conditions at different timescales were refined, taking advantage of studies of response to land use change, major floods, and volcanic eruptions. Dating of sediments allowed greater appreciation of fluctuations in the incidence of extreme driving events over centuries and thousands of years. Towards the end of the period research on bedrock rivers began to take off.

Essential elements, conceptual foundations and workflow design in crowd-powered projects

Crowdsourcing arose as a problem-solving strategy that uses a large number of workers to achieve tasks and solve specific problems. Although there are many studies that explore crowdsourcing platforms and systems, little attention has been paid to define what a crowd-powered project is. To address this issue, this article introduces a general-purpose conceptual model that represents the essential elements involved in this kind of project and how they relate to each other. We consider that the workflow in crowdsourcing projects is context-oriented and should represent the planning and coordination by the crowdsourcer in the project, instead of only facilitating decomposing a complex task into subtask sets. Since structural models are limited to cannot properly represent the execution flow, we also introduce the use of behavioural conceptual models, specifically Unified Modeling Language (UML) activity diagrams, to represent the user, tasks, assets, control activities and products involved in a specific project.

Brain morphometry points to emerging patterns of psychosis, depression, and anxiety vulnerability over a 2-year period in childhood

Background Gray matter morphometry studies have lent seminal insights into the etiology of mental illness. Existing research has primarily focused on adults and then, typically on a single disorder. Examining brain characteristics in late childhood, when the brain is preparing to undergo significant adolescent reorganization and various forms of serious psychopathology are just first emerging, may allow for a unique and highly important perspective of overlapping and unique pathogenesis. Methods A total of 8645 youth were recruited as part of the Adolescent Brain and Cognitive Development study. Magnetic resonance imaging scans were collected, and psychotic-like experiences (PLEs), depressive, and anxiety symptoms were assessed three times over a 2-year period. Cortical thickness, surface area, and subcortical volume were used to predict baseline symptomatology and symptom progression over time. Results Some features could possibly signal common vulnerability, predicting progression across forms of psychopathology (e.g. superior frontal and middle temporal regions). However, there was a specific predictive value for emerging PLEs (lateral occipital and precentral thickness), anxiety (parietal thickness/area and cingulate), and depression (e.g. parahippocampal and inferior temporal). Conclusion Findings indicate common and distinct patterns of vulnerability for varying forms of psychopathology are present during late childhood, before the adolescent reorganization, and have direct relevance for informing novel conceptual models along with early prevention and intervention efforts.

Brand Gravity-Resonance Capability on Brand Love: a Resource-Advantage theory Perspective

<p>This research intends to explore the experience of using brands in the past to increasingly love product brands through brand gravity-resonance capability, especially in the competition of the multi-business product sector. The novelty of this study lies in the synthesis of brand gravity variables, and brand resonance provides the proposed brand gravity-resonance capability variables of the resource-advantage theory of competition proposition results. Data were collected from 499 small and medium-sized business respondents through the dissemination of questionnaires and interviews. The SEM-PLS technique analyzes data with a path mediated by brand gravity-resonance capability on brand love. The results showed that brand gravity-resonance capability successfully mediated the brand experience relationship in brand love and the direct connection of brand experience in the past, and brand gravity-resonance capability in brand love managed to increase the sense of brand love. The practical implications of the novelty of this variable provide improvements to MSME managers or businesses to resonate the value of digital aggressiveness, configure science, integrate customer systems, and be oriented towards the creation of new markets. Conceptual implications contribute as new conceptual models that can bridge negative experiences to result in a dynamic and competitive comparative advantage in the market.</p>

Methodological path to reach the degree of saturation in qualitative research: grounded theory

ABSTRACT Objectives: to achieve the degree of saturation in study that applied the grounded theory. Methods: qualitative research, carried out in four Family Health Units, between June 2018 and May 2019. The data from the interviews with 30 health professionals and non-participant observation were coded in the stages: open, axial and integration. Results: the degree of saturation was achieved by two conceptual models - theoretical saturation and inductive thematic. Theoretical saturation was considered: the development of conceptual codes and observation, in the collection and analysis of data, when they generated new categories/subcategories or only indicated increasing instances. For thematic inductive saturation, the use of new codes based on each interview stood out. Final Considerations: the visual layout for the number of codes, the theoretical scope of the concepts and the delimitation of the sample groups guided the identification of the degree of saturation for the development of the conceptual body that supported the substantive theory.

Impaired knowledge in individuals with heart failure: a middle range nursing theory

ABSTRACT Objective: To develop a middle range nursing theory of impaired knowledge in individuals with heart failure. Methods: Descriptive study of the cross type developed through the theoretical-causal validity method, which used six steps for theory building: Definition of the construction approach; Definition of theoretical-conceptual models; Definition of main concepts; Development of a pictorial scheme; Construction of propositions; and Establishment of causal relations and evidence for practice. Results: Twenty-four articles were found, which identified two attributes, eight antecedents, and seven consequences, which gave rise to the pictogram, which schematized the concepts by relating them to cardiac physiology. Finally, 11 propositions and four causal relationships were created. Conclusion: The constructed theory enables a targeted driving of nurses’ clinical judgment regarding impaired knowledge in individuals with heart failure, culminating in individualized interventions to improve quality of life.

Anxiety During the Pandemic

This chapter intends to analyse the moderate effect of individual anxiety and gender derived by the pandemic crisis regarding health importance, health knowledge, and health consciousness of the individuals. A quantitative methodology was adopted with data collected from a questionnaire survey. The conceptual models and associated hypotheses were tested with a sample of 243 respondents. Data were analysed through a mediate-moderate model using a Hayes PROCESS macro. Findings show that health consciousness and knowledge affect health importance, health knowledge mediates the relation between health consciousness and health importance, for women health is more important than for men, and anxiety moderates and increases the relation between health consciousness, health knowledge, and health importance.