A Bayesian methodological framework for accommodating interannual variability of nutrient loading with the SPARROW model

2012 ◽  
Vol 48 (10) ◽  
Author(s):  
Christopher Wellen ◽  
George B. Arhonditsis ◽  
Tanya Labencki ◽  
Duncan Boyd
Keyword(s):  
Interannual Variability ◽  
Nutrient Loading ◽  
Methodological Framework ◽  
Sparrow Model

scholarly journals Factors Controlling Hypoxia Occurrence in Estuaries, Chester River, Chesapeake Bay

Water ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1961 ◽  
Author(s):  
Richard Tian
Keyword(s):  
Chesapeake Bay ◽  
Interannual Variability ◽  
Nutrient Loading ◽  
Nutrient Management ◽  
River Estuary ◽  
Ocean Model ◽  
Quality Model ◽  
Oyster Aquaculture ◽  
Living Species ◽  
Predominant Factor

The Chester River, a tributary of Chesapeake Bay, provides critical habitats for numerous living species and oyster aquaculture, but faces increasing anthropogenic stresses due to excessive nutrient loading and hypoxia occurrence. An application of the Integrated Compartment Water Quality Model (ICM), coupled with the Finite-Volume Community Ocean Model (FVCOM), was carried out to study the controlling mechanisms and interannual variability in hypoxia occurrence from 2002 to 2011. Our study shows that hypoxia occurs mostly in the main stem in July, followed by August and June. On an interannual scale, 2005 had the highest hypoxia occurrence with an accumulative hypoxia volume of about 10 km3-days, whereas 2008 had the lowest occurrence with an accumulative hypoxia volume of about 1 km3-days. Nutrient loading is the predominant factor in determining the intensity and interannual variability in hypoxia in the Chester River estuary, followed by stratification and saltwater intrusion. Phosphorus has been found to be more efficient in controlling hypoxia occurrence than nitrogen due to their different limiting extent. On a local scale, the Chester River estuary is characterized by several meanders, and at certain curvatures helical circulation is formed due to centrifugal forces, leading to better reaeration and dissolved oxygen (DO) supply to the deeper layers. Our study provides valuable information for nutrient management and restoration efforts in the Chester River.

scholarly journals What drives interannual variability of hypoxia in Chesapeake Bay: Climate forcing versus nutrient loading?

2016 ◽  
Vol 43 (5) ◽  
pp. 2127-2134 ◽  
Author(s):  
Ming Li ◽  
Younjoo J. Lee ◽  
Jeremy M. Testa ◽  
Yun Li ◽  
Wenfei Ni ◽  
...  
Keyword(s):  
Chesapeake Bay ◽  
Interannual Variability ◽  
Nutrient Loading ◽  
Climate Forcing

Competenza ad agire insieme e senso di iniziativa: il tirocinio per attraversare i confini tra studio e lavoro

2020 ◽  
pp. 93-102
Author(s):  
Fabrizio d'Aniello
Keyword(s):  
Professional Growth ◽  
Capability Approach ◽  
Boundary Crossing ◽  
Methodological Framework ◽  
Knowledge Models ◽  
Internship Experience ◽  
Cultural Historical Activity ◽  
The University ◽  
And Training ◽  
The Capability Approach

The pre-eminent motivation behind this contribution lies in the intention to offer students of three-year degree course in education and training sciences and master's degree in pedagogical sciences of the University of Macerata a further support than those already existing, aimed at expanding the educational meaningfulness of the internship experience. The main criticality of such experience is connected with the difficulty in translating knowledge, models, ideas into appropriate activities. This notably refers to the conceptual and educational core of the sense of initiative and entrepreneurship and, consistently, to the skill to act. Therefore, after a deepening of the sense of initiative and entrepreneurship, followed by related pedagogical reflections based on the capability approach, the paper presents an operative proposal aimed at increasing young people's possibilities of action and supporting their personal and professional growth. With regard to this training proposal, the theoretical and methodological framework refers to the third generation cultural historical activity theory and to the tool of the boundary crossing laboratory, variant of the change laboratory

Tata kelola internal dan eksternal untuk mengatasi permasalahan pangan di Indonesia

2018 ◽  
Vol 13 (1) ◽  
Author(s):  
Reza Hendriyantore
Keyword(s):  
Good Governance ◽  
National Level ◽  
Open Government ◽  
Agricultural Cooperatives ◽  
Methodological Framework ◽  
Agricultural Cooperative ◽  
The Reformation ◽  
The Government ◽  
Good Access ◽  
Descriptive Method

The effort to put good governance in development in Indonesia is basically not new. Since the Reformation, the transformation of closed government into an open government (inclusive) has begun to be pursued. Highlighting the conflicts in the land sector that tend to strengthen lately, there are some issues that have intensified conflicts in the field, such as the lack of guaranteed land rights in various legal and policy products. In this paper, a descriptive method is considered important in identifying the applicable issue and methodological framework for addressing governance issues in Indonesia. To reduce such agrarian conflicts between farmers and the government, and as an effort to increase farmers' income, all farmers are incorporated into agricultural cooperatives. Agricultural cooperatives are structured down to the National Level. Thus, farmers participate in good access to the marketing of agricultural produce.Keywords:good governance, agrarian conflict, agricultural cooperative

Justification of the need to improve the legal, regulatory and methodological framework for the spread of parasitic infections in the provision of medical care

2020 ◽  
Vol 99 (5) ◽  
pp. 493-497
Author(s):  
M. M. Aslanova ◽  
T. V. Gololobova ◽  
K. Yu. Kuznetsova ◽  
Tamari R. Maniya ◽  
D. V. Rakitina ◽  
...  
Keyword(s):  
Medical Care ◽  
Research Work ◽  
Hospital Environment ◽  
Parasitic Infections ◽  
Infusion Therapy ◽  
Methodological Framework ◽  
Production Environment ◽  
Medical Institutions ◽  
Medical Network ◽  
Wide Range

Introduction. The purpose of our work was to justify the need to improve the legislative, regulatory and methodological framework and preventative measures in relation to the spread of parasitic infections in the provision of medical care. There is a wide range of pathogens of parasitic infestations that are transmitted to humans through various medical manipulations and interventions carried out in various medical institutions. Contaminated care items and furnishings, medical instruments and equipment, solutions for infusion therapy, medical personnel’s clothing and hands, reusable medical products, drinking water, bedding, suture and dressing materials can serve as a major factor in the spread of parasitic infections in the provision of medical care. Purpose of research is the study of the structure and SMP of parasitic origin, circulating on the objects of the production environment in multi-profile medical and preventive institutions of stationary type in order to prevent the occurrence of their spread within medical institutions. Material and methods. The material for the study was flushes taken from the production environment in 3 multi-profile treatment and prevention institutions of inpatient type: a multi-specialty hospital, a maternity hospital and a hospital specializing in the treatment of patients with intestinal diseases for the eggs of worms and cysts of pathogenic protozoa. Results. During the 2-year monitoring of medical preventive institutions, a landscape of parasitic contamination was found to be obtained from the flushes taken from the production environment objects in the premises surveyed as part of the research work. Discussions. In the course of research, the risk of developing ISMP of parasitic origin was found to be determined by the degree of epidemiological safety of the hospital environment, the number and invasiveness of treatment and diagnostic manipulations and various medical technologies. Conclusion. It is necessary to conduct an expert assessment of regulatory and methodological documents in the field of epidemiological surveillance and sanitary and hygienic measures for the prevention of medical aid related infections of parasitic origin, to optimize the regulatory and methodological base, to develop a number of preventive measures aimed at stopping the spread of parasitic infections in the medical network.

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