In Spain, voltage regulation in transmission networks is mainly done by controlling the reactive power in conventional generators. In wind energy, an incentive payment related to the reactive power compensation is applied. The maximum value of incentive payment and the objective power factor depend on the period of the day: peak, valley or flat. In this paper, a different behaviour is proposed,...

To provide information on the ecology of Pseudomonas aeruginosa in nature, bacteriological surveillance was performed in the defined area in Hokkaido, Japan. P. aeruginosa was isolated from water samples of Ushubetsu River in the down stream from the urban area of Asahikawa. P. aeruginosa was isolated from fecal samples of pigs but not from samples of soil of a tomato field, sand of sandboxes i...

t a time of ever more constrained finances and increasing demands on state parks, the support of a constituency with a statewide focus on the health and integrity of a park system as a whole can be critical. This paper assesses Missouri’s experience with constituency groups, including, in the past two decades, a citizen organization devoted solely to state parks and historic sites, the Missouri...

BACKGROUND Reliable and comprehensive measurement of physical activity settings is needed to examine environment-behavior relations. METHODS Surveyed park professionals (n = 34) and users (n = 29) identified park and playground elements (e.g., trail) and qualities (e.g., condition). Responses guided observational instrument development for environmental assessment of public recreation spaces ...

The healing power of nature, vis medicatrix naturae, has traditionally been defined as an internal healing response designed to restore health. Almost a century ago, famed biologist Sir John Arthur Thomson provided an additional interpretation of the word nature within the context of vis medicatrix, defining it instead as the natural, non-built external environment. He maintained that the heali...

BACKGROUND Little national evidence is available on spatial disparities in distributions of parks and green spaces in the USA. PURPOSE This study examines ecological associations of spatial access to parks and green spaces with percentages of black, Hispanic, and low-income residents across the urban-rural continuum in the conterminous USA. METHODS Census tract-level park and green space da...

We analyze a tourism supply chain containing a theme park, local hotels, and multiple travel agents using a game theoretic approach in three scenarios: Nash equilibrium, Stackelberg equilibrium, and full cooperation. We find that a vertical cooperative advertising strategy is particularly effective in increasing customer demand.

BACKGROUND The number of sports facilities, sports clubs, or city parks in a residential neighbourhood may affect the likelihood that people participate in sports and their preferences for a certain sports location. This study aimed to assess whether objective physical and socio-spatial neighbourhood characteristics relate to sports participation and preferences for sports locations. METHODS ...

We report on the long-distance movements of subadult female buffalo within a Transfrontier Conservation Area in Africa. Our observations confirm that bovine tuberculosis and other diseases can spread between buffalo populations across national parks, community land, and countries, thus posing a risk to animal and human health in surrounding wildlife areas.

the city is alive with dynamic systems, where parks and urban green spaces have high strategic importance which help to improve living conditions. urban parks are used as visual landscape with so many benefits such as reducing stress, reducing air pollution and producing oxygen, creating opportunities for people to participate in physical activities, optimal environment for children and decreas...