نتایج جستجو برای: artificial night

تعداد نتایج: 320349  

1977
B. Kirchmann P. Kopecky Z. Zdrahal

Our p u r p o s e i s t o i n f o r m o f t h e p r e s e n t r e s u l t s a c h i e v e d a t C z e c h T e c h n i c a l U n i v e r s i t y , D e p a r t m e n t o f C o n t r o l i n t h e f i e l d o f r o b o t i c s . GOALEM ( G O A L o r i e n t e d E l e c t r i o a l M a n i p u l a t o r ) i s a c o m p u t e r c o n t r o l l e d e l e c t r o m e c h a n i c a l a r m w i t h 6 d ...

2010
Alessandro Barghini Bruno A. S. de Medeiros

BACKGROUND Traditionally, epidemiologists have considered electrification to be a positive factor. In fact, electrification and plumbing are typical initiatives that represent the integration of an isolated population into modern society, ensuring the control of pathogens and promoting public health. Nonetheless, electrification is always accompanied by night lighting that attracts insect vecto...

Journal: :Journal of environmental management 2006
C Chalkias M Petrakis B Psiloglou M Lianou

This paper describes a methodology for modelling light pollution using geographical information systems (GIS) and remote sensing (RS) technology. The proposed approach attempts to address the issue of environmental assessment in sensitive suburban areas. The modern way of life in developing countries is conductive to environmental degradation in urban and suburban areas. One specific parameter ...

2017
Arnaud Da Silva Maaike de Jong Roy H A van Grunsven Marcel E Visser Bart Kempenaers Kamiel Spoelstra

Light pollution is increasing exponentially, but its impact on animal behaviour is still poorly understood. For songbirds, the most repeatable finding is that artificial night lighting leads to an earlier daily onset of dawn singing. Most of these studies are, however, correlational and cannot entirely dissociate effects of light pollution from other effects of urbanization. In addition, there ...

2003
Marco Mirolli Domenico Parisi

Populations of artificial organisms live in an environment in which light is cyclically present (day) or absent (night). Since being active during night is non-adaptive (activity consumes energy which is not compensated by the food found at night) the organisms evolve a sleep/wake behavioral pattern of being active during daytime and sleeping during nighttime. When the population moves to a dif...

2016
Richard H Ffrench-Constant Robin Somers-Yeates Jonathan Bennie Theodoros Economou David Hodgson Adrian Spalding Peter K McGregor

The ecological impact of night-time lighting is of concern because of its well-demonstrated effects on animal behaviour. However, the potential of light pollution to change plant phenology and its corresponding knock-on effects on associated herbivores are less clear. Here, we test if artificial lighting can advance the timing of budburst in trees. We took a UK-wide 13 year dataset of spatially...

Journal: :The British journal of ophthalmology 2003
J A Guggenheim C Hill T-F Yam

BACKGROUND It has been reported that exposure to artificial lighting at night during the first 2 years of life was very strongly associated with subsequent myopia development. METHODS The strength of this association was tested in a UK sample for the first time. The study population comprised 122 university students. RESULTS Myopia occurred with approximately equal frequency in those who sl...

2003
Jelmer A. Elzinga Arjen Biere Jeffrey A. Harvey

We describe a method for the rearing of the oligophagous herbivore Hadena bicruris, and its gregarious koinobiont endoparasitoid Microplitis tristis under laboratory conditions. With flowers from the host food plant Silene latifolia available, female moths lay on average 414 eggs during their lifetime, starting at day 3 after eggression and with a peak number per night on day 8. Caterpillars ca...

2011
Mohd Farid Mohd Ariff Zulkepli Majid Halim Setan Albert K. Chong

Mostly today, illegal activities occur in the darkness of night. So how does one observe an area looking for lawbreakers at night when no means of visual sight is available? Using spotlights to see what is happening modifies the very behaviour that is being witnessed. Infrared cameras allow surveillance personnel to set back at a safe and unnoticeable distance and record the activity as it occu...

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