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Introduction: Human Papillomavirus infection is a vaccine-preventable disease whose prevalence continues to be quite high in young women in low-income countries. Objective: To determine the association of knowledge, attitude and sociodemographic factors with the acceptability of vaccination against Human Papillomavirus in human medicine students. Methods: A quantitative, observational, analytical and cross-sectional study was performed with a sample of 371 human medicine students from a Peruvian university during the period November 2020 to January 2021. The sampling was probabilistic. Results: Of the 371 respondents, 84.9% stated that they were accepting of vaccination against the Human Papillomavirus. In the multivariate analysis, it was observed that attitude (OR: 2.86; CI: 1.99 - 4.11), gender (OR: 1.17; CI: 1.05 - 1.31), age (OR: 0.88, CI: 1.78 -0.98) were statistically significant. Regarding knowledge, no significant difference was found with the acceptability of vaccination against Human Papillomavirus (OR: 1.03; CI: 0.93-1.13). Conclusion: An association was found between attitude, female gender and age over 20 years. No association was found between knowledge about the Human Papillomavirus and the acceptability of vaccination.

Numerous policy and international frameworks consider that "destructive fishing" hampers efforts to reach sustainability goals. Though ubiquitous, "destructive fishing" is undefined and therefore currently immeasurable. Here we propose a definition developed through expert consultation: "Destructive fishing is any fishing practice that causes irrecoverable habitat degradation, or which causes significant adverse environmental impacts, results in long‐term declines in target or nontarget species beyond biologically safe limits and has negative livelihood impacts." We show strong stakeholder support for a definition, consensus on many biological and ecological dimensions, and no clustering of respondents from different sectors. Our consensus definition is a significant step toward defining sustainable fisheries goals and will help interpret and implement global political commitments which utilize the term "destructive fishing." Our definition and results will help reinforce the Food and Agricultural Organization's Code of Conduct and meaningfully support member countries to prohibit destructive fishing practices. [ABSTRACT FROM AUTHOR]

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The study of group processes has benefited from longstanding programs of theory-driven research on status and power. The present work constructs a bridge between two formal theories of status and power: Status Characteristics Theory and Network Exchange Theory. Two theoretical models, one for "status value" and one for "status influence," illuminate the underlying mechanisms whereby status differences between individuals lead to power differences in negotiated exchange. The two models generate precise hypotheses that are tested against new and previously published data. The results generally support both models, indicating that status characteristics create power in negotiated exchange relations in contrasting ways. We conclude with a discussion of the broader theoretical and empirical implications.

This paper investigates two forms of property as a social phenomenon and finds the Property Right Paradigm of economics to be wrongly conceived. Introducing new formulations for property reveals that private and communal property are frequently found together. When they are, as the scope of one increases the scope of the other shrinks. We examine how property rights are embedded in social exchange experiments. Calling on game theory, we find that communal property relations and private property relations contain exactly the same social dilemma. Furthermore, absent enforced rights, no property exists. Property comes to exist through socially producing its rights and we show that production must be coercive. We link our new theory of property to Robѐ's analysis of property and power in contemporary society. [ABSTRACT FROM AUTHOR]

Merton proposed middle range theories, not as ends in themselves, but as bases for a consolidation to explain broader phenomenon. More than a half century has passed since Merton's consolidation proposal and in that time a number of experimentally tested middle range theories have been developed. Certainly, the next step should be a consolidation. Yet, to our knowledge, no one has previously offered a consolidation of experimentally tested theories and applied it for explanation. This paper offers a consolidation of middle range theories formulated to explain the rise of the pristine state. Two theories of this consolidation, Status Characteristics Theory and Elementary Theory, form the core of what Analytic Sociologists have called a toolbox of theories. Our toolbox forms an integrated consolidation in two ways. First, the social structures modeled by the theories form a path-dependent process of increasing benefits gained by the elites of the structures. Second, the end conditions of each step of the process are the initial conditions of the next. Whereas the theories in our toolbox have previously been seen as applying exclusively to microstructures, we have encountered no difficulties in scaling them up to apply to macrostructures. While we hope the consolidation has validity in explaining the occurrence of pristine states, this paper's significance lies in its demonstration that today social theories can be consolidated and applied for explanation. [ABSTRACT FROM AUTHOR]

The term 'destructive fishing' appears in multiple international policy instruments intended to improve outcomes for marine biodiversity, coastal communities and sustainable fisheries. However, the meaning of 'destructive fishing' is often vague, limiting effectiveness in policy. Therefore, in this study, we systematically reviewed the use of 'destructive fishing' in three record types: academic literature, media articles and policy documents between 1976 and 2020. A more detailed analysis was performed on subsets of these records, considering the extent to which the term is characterised, geographic distribution of use, and specific impacts and practices associated with the term. We found that use of 'destructive fishing' relative to the generic term 'fisheries' has increased since the 1990s. Records focussed predominantly on fishing practices in South‐eastern Asia, followed by Southern Asia and Europe. The term was characterised in detail in only 15% of records. Habitat damage and blast/poison fishing were the most associated ecological impacts and gear/practices, respectively. Bottom trawling and unspecified net fishing were regularly linked to destructive fishing. Importantly, the three record types use the term differently. Academic literature tends to specifically articulate the negative impacts, while media articles focus generally on associated gears/practices. Significant regional variation also exists in how the term is used and what phenomena it is applied to. This study provides evidence and recommendations to inform stakeholders in any future pursuit of a unified definition of 'destructive fishing' to support more meaningful implementation of global sustainability goals. [ABSTRACT FROM AUTHOR]

Las revistas científicas tienen una importante función en la difusión de los resultados obtenidos en investigaciones, así como en la crítica de los conocimientos ya establecidos (1). Su calidad depende –entre otros aspectos- de la rapidez del proceso de selección y de publicación (proceso editorial) de los artículos (2).

Aquaculture has grown rapidly to play a crucial economic and social role and meet the increasing global demand for seafood. As aquaculture intensifies, there is increasing pressure to find more sustainable practices that save resources and reduce waste. Major wastes and by-products from aquaculture were quantified across a full range of farming types. Key opportunities for wastewater treatment and by-product recovery include nutrient recycling through a combination of biofilters, bioaccumulation and multitrophic systems. To support a sustainable intensification of aquaculture, improvements in by-product harvesting, accumulation and processing methods require further investigation. Likewise, energy generated from by-products can potentially support intensified production through land-based recirculating aquaculture systems (RAS). Future challenges faced by the reuse of side streams include control of food safety and gaining consumer acceptance. Combined with increases in resource use efficiency across the aquaculture sector, from feeding methodologies to product storage, nutrient recycling can enable aquaculture to contribute sustainably toward the nutritional requirements of billions of people over the next century. [ABSTRACT FROM AUTHOR]

Aquaculture expansion is expected to meet growing demand for sustainable animal-source foods. Yet marine-fed species already require millions of tonnes of wild-caught fish for feed, over 90% of which are nutritious food-grade species. Allocating feed fish for human consumption could reduce pressure on marine resources while increasing seafood production. We examine micronutrient flows (the transfer of micronutrients from feed to fish) in Scotland's farmed salmon industry, which is particularly reliant on marine feeds, to show that 1-49% of essential dietary minerals and fatty acids available in wild fish are retained in farmed salmon. Using three alternative production scenarios we show that reducing marine feeds in salmon production and allocating wild-caught feed fish for human consumption could produce more nutritious seafood and leave 66-82% of feed fish in the sea. Using global data on marine-fed aquaculture production, we show that removing wild-caught fish from salmonid production could leave 3.7 Mt fish in the sea while increasing global seafood production by 6.1 Mt. [ABSTRACT FROM AUTHOR]

Frequently social theorists conflate power and influence, often subsuming influence under a broad conception of power. Two contemporary theories separate them. Elementary theory has investigated power, status characteristics and expectations states theory has investigated interpersonal influence, and neither theory has considered the phenomenon of the other. We use the two theories to explain how power produces influence and how influence produces power. We develop a theory that shows how the emotional reactions of group members mediate the influence produced by power. We examine some new data and hypothesize that influence produces power. We trace the consequences when power and influence are opposed within a single relationship. Implications outside the limitations of the laboratory are discussed along with new hypotheses to be tested., Conceptions of power and influence are fundamental to the understanding of society. Consider the ways in which power and influence can occur in a social situation. A successful executive with [...]