I många samhälleliga sammanhang återkommer en uppmaning att lyssna på barn, inte sällan med hänvisning till FN:s barnkonvention och kanske särskilt artikel 12 om rätten bli hörd. Men vad innebär det barn? Mängder av böcker lyssnande barn som riktar sig yrkespraktiker andra möter i sitt vardagsliv publiceras kontinuerligt. Vi saknar emellertid kritisk diskussion sätter frågor lyssnande, goda lys...

BACKGROUND Swine farmers repeatedly exposed to the barn air suffer from respiratory diseases. However the mechanisms of lung dysfunction following repeated exposures to the barn air are still largely unknown. Therefore, we tested a hypothesis in a rat model that multiple interrupted exposures to the barn air will cause chronic lung inflammation and decline in lung function. METHODS Rats were ...

Relationships between air quality, a variety of environmental risk factors, and calf respiratory health were studied in 13 naturally ventilated calf barns during winter. A minimum of 12 preweaned calves were randomly selected and scored for the presence of respiratory disease in each barn. An air sampling device was used to determine airborne bacteria colony-forming units per cubic meter (cfu/m...

Methods: Pigs (n = 6024) were randomly distributed into four blocks of two barns per block and allotted within block to diets with either Normal (industry levels) or Reduced TM supplementation. Growth performance was measured for each barn, and individual carcass characteristics were recorded at a commercial packing plant. Fecal samples randomly obtained from at least eight pigs per barn were a...

Eighty-one barn owls (Tyto alba) and five Hawaiian owls or pueo (Asio flammeus sandwichensis) from Kauai, Oahu, Lanai, Molokai, Maui and Hawaii (USA) were evaluated for cause of death, November 1992 through August 1994. The most common cause of death in barn owls was trauma (50%) followed by infectious disease (28%) and emaciation (22%). Most traumas apparently resulted from vehicular collision...

Several rodent species cause damage in vineyards and orchards. Current efforts to reduce chemicals used to control rodents are encouraging development of alternative practices, such as biological control. For several years growers in California have been installing artificial owl nest boxes to attract barn owls with the hope of reducing rodents, especially gophers, through predation. Effectiven...

Meticulous planning is required to minimize heat-stress conditions in barns. The objective of this study was to determine optimum barn characteristics for high-yielding dairy cows under Israeli (Mediterranean) summer ambient conditions, by using a new stress model that takes ambient temperature, relative humidity and wind velocity into account. During the summers of 2004 and 2005, three meteoro...

BACKGROUND A previous study showed there to be fewer microorganisms (especially thermophilic actinomycetes) on farms with artificial barn drying of fodder than on those using traditional storage methods. A cross sectional study was performed to see whether barn drying provides protection against respiratory problems in dairy farmers. METHODS The respiratory symptoms and function of a group of...

A new structure bulk tobacco curing barn was presented. To study the temperature and humidity field in the new structure tobacco curing barn, a 3D transient computational fluid dynamics (CFD) model was developed using porous medium, species transport, κ-ε turbulence and discrete phase models. The CFD results demonstrated that (1) the temperature and relative humidity predictions were validated ...

[PDF] [Full Text] [Abstract] , November 1, 2001; 21 (21): 8586-8593. J. Neurosci. P. S. Hyde and E. I. Knudsen Optic Tectum A Topographic Instructive Signal Guides the Adjustment of the Auditory Space Map in the [PDF] [Full Text] [Abstract] , February 1, 2003; 23 (3): 1059-1065. J. Neurosci. G. L. Miller and E. I. Knudsen Adaptive Plasticity in the Auditory Thalamus of Juvenile Barn Owls [P...