scholarly journals Sediment sorting by hopper dredging and pump-out operations : conceptual model and literature review

2020 ◽  
Author(s):  
Anthony Priestas ◽  
S. Smith ◽  
Katherine Brutsche
2021 ◽  
pp. 1-10
Author(s):  
Joel Vos

Abstract Objectives Previous studies have shown that psychological stress and mental health problems increase the risk for cardiovascular disease (CVD) events, such as heart attack or stroke. Furthermore, after CVD events, the majority of patients report large stress. However, psychological treatments have only modest effects in CVD patients. Therefore, it has been argued that new conceptual models are needed to understand the aetiology of stress and mental health problems in CVD patients. Therefore, this study included a systematic literature review and a conceptual model on the role of meaning in life for psychological stress, mental health, and CVD risks. Methods A systematic literature review was conducted on relationships between CVD and meaning in life. PRISMA/MOOSE review guidelines were followed. These findings were used to build a conceptual model. Results The literature review included 113 studies on meaning and CVD. The included studies described meaning as a predictor of cardiovascular risks and health, meaning-centered needs of patients in conversations with medical staff, meaning-centered changes after CVD events, meaning-centered coping with CVD, meaning as motivator of CVD-related lifestyle changes, and meaning as an element in psychological treatments of CVD patients. In sum, the literature showed that a central clinical concern for patients is their question how to live a meaningful life despite CVD. Meaning-centered concerns seem to lead to lower motivation to make lifestyle changes, more psychological stress, lower quality-of-life, worse physical well-being, and increased CVD risk. The ability to live a meaningful life after CVD events is related with lower stress, better mental health, and several biomarkers. Significance of results An evidence-based conceptual framework was developed for the relationship between meaning and CVD. It may be hypothesized CVD patients may benefit from psychological therapies focused on meaning.


2021 ◽  
Vol 3 (1) ◽  
pp. 14-25
Author(s):  
Sónia Ferreira ◽  
Sara Santos ◽  
Pedro Espírito Santo

The internet search trend has caused that online users are looking for more and more enriched information. The evolution of social media has been huge and users relate to social networks differently than they did before. Currently, there are more than 4 billion active users on social networks and brands are looking to showcase their products and services. Our research found the following factors that influence social media engagement: informativeness, self-connection and advertising stimulation. Through literature review, we propose a conceptual model that has been tested in the PLS-SEM. Data were collected from 237 consumers and our survey found that engagement in social media is explained by the variables identified by our model. Important contributions to brand theory and management will be found in this investigation.


Author(s):  
Polona Tominc ◽  
Vit Paszto ◽  
Samo Bobek ◽  
Simona Sternad Zabukovšek

This research arises from the importance of integration of knowledge of economics/business and spatial sciences for graduates who must think and act in interdisciplinary contexts.The systematic literature review revealed thatthis interdisciplinary field is richly present in original scientific research, and is undoubtedly topical and worthy of research efforts. Themain objective of this paper is toanalyse important factors that contribute to the attitudes of students towards interdisciplinary knowledge, and factors that shape their intentions to use and integrate this knowledge in the future. The conceptual model formed was tested using structural equation modeling (SEM). Research results confirm the importance of integration of economics/business and spatial sciences knowledge, for graduates. As presented in the paper, results of thestudyhave important implications for higher education institutions, reforming and updating their study programs, as well as for educators in the field of spatial sciences and economic/business sciences, in research and in education.


Vaccines ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 80
Author(s):  
Farren Rodrigues ◽  
Suzanne Block ◽  
Suruchi Sood

Vaccine hesitancy is a prevalent and ongoing issue. However, due to the COVID-19 pandemic, additional attention has been brought to the topic of vaccine hesitancy. Vaccine hesitancy is a threat to the population’s health globally. This article aims to acquire insights from previous literature to determine what works to increase vaccine uptake and how we can apply this knowledge to increase COVID-19 vaccine uptake. Research has focused chiefly on childhood vaccination and the hesitancy of caregivers. After conducting an extensive literature review, we have created a conceptual model of indicators that influence vaccine uptake for health providers and caregivers, which can also be used for vaccine recipients. Overall, the reasons for vaccine hesitancy are complex; therefore, a multifaceted approach is needed to address it. Understanding the factors that affect vaccine hesitancy will aid in addressing hesitancy and, in turn, lead to an increase in vaccine uptake.


10.28945/3756 ◽  
2017 ◽  
Author(s):  
Clara A. Nkhoma ◽  
Mathews Nkhoma ◽  
Irfan ulhaq ◽  
Sang Q Mai

Aim/Purpose: Development of a conceptual model linking early class preparation to improve class participation and performance. Background: Class preparation and class participation are precursors for the students’ performance. Methodology: Literature review. Findings: In a student-centered class environment, class preparation remains essential for the successful collaboration and participation. The literature review in this stream reveals that little attention has been paid to undergraduate class levels. Recommendation for Researchers: The literature review shows that there is a need for more research using undergraduate classes. Future Research: Validation and application of model in different educational program and discipline settings


Author(s):  
Isabel Pinho ◽  
Cláudia Pinho ◽  
António Pedro Costa

This exploratory systematic literature review is a starting point for a deep literature review on “Knowledge Governance” (KGOV) topic. The aim is to have a quick picture about KGOV; specifically trying to identify the seminal, core and relevant documents. We also seek to know the contexts of these studies, as well as on what ontological levels and activities they refer to. The principal results are: a) the identification of the structure of the topic, by retrieving the main seminal articles and the most cited (core documents) and b) the building of a structured analysis framework. This framework will be used to perform a deep literature review that aim to develop an integrated and holist conceptual model on Knowledge Governance. Major conclusions are related to clues for future research on this topic.


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