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SERVITUDES, NATURAL, civil law. Those servitudes which arise in consequence of the nature of the soil.
     2. By law the inferior heritages, are submitted in relation to the natural flow of waters, and the like, to the superior. An inferior field is, therefore, subject to the injury or prejudice which the situation of the ground, in its natural state, way cause it.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
For first parturition females, the cooled ventilation system resulted in a lower respiratory rate compared to those which received natural ventilation, in all times, except at 07h00.
The assumed median of the annual natural ventilation operating time was 500 h, while the average annual natural ventilation operating time was assumed to be 966 h.
This approach is what led the client to use natural ventilation as much as possible, even though Climate Zone 4A is a climate that is not thought of as typically suitable for this type of conditioning.
In North America, a handful of early adopters have navigated existing technical and cultural obstacles to natural ventilation in healthcare facilities.
The technique contributes effective natural ventilation and day lighting solution [3].
It also shows that totally closed indoor environments, without natural ventilation (PHP_Unventilated and SD_Unventilated) had the highest relative humidity, close to saturation.
A 2013 NREL study called Natural Ventilation in California Offices: Estimated Health Effects and Economic Consequences set out to determine if opening windows was an answer or a problem to poor IAQ.
For the conventional micropropagation and natural ventilation system, in solid and liquid medium it was used containers with 500ml of volume.
Meanwhile roofs are low pitched to allow rooflights to enhance sustainability and both schools also offer bright, open plan teaching and learning facilities with natural ventilation. As part of the wider "Greening Wingrove" community initiative, Aura is working with the children at Westgate Hill Primary and the local community to develop a "green boulevard" effect along Beaconsfield Street, between Westgate Hill and another nearby school.
The potential for natural ventilation in building design to reduce associated building cooling and fan energy consumption makes it an area of great interest.
Plus it's eco-friendly with a natural ventilation system that catches the wind and sends it into the building while at the same time taking out the stale air.