Tools
Sorted by:
Try your query at:
 |
 |
 |
 |
 |
 |
Results 1 - 10
of
823,412
An ecological perspective on health promotion programs
- Health Education Quarterly
, 1988
"... During the past 20 years there has been a dramatic increase in societal interest in preventing disability and death in the United States by changing individual behaviors linked to the risk of contracting chronic diseases. This renewed interest in health pro-motion and disease prevention has not been ..."
Abstract
-
Cited by 499 (2 self)
- Add to MetaCart
individual and social environmental factors as targets for health promo-tion interventions. It addresses the importance of interventions directed at changing interpersonal, organizational, community, and public policy, factors which support and maintain unhealthy behaviors. The model assumes that appropriate
The struggle to govern the commons
- Science
, 2003
"... Human institutions—ways of organizing activities—affect the resilience of the environ-ment. Locally evolved institutional arrangements governed by stable communities and buffered from outside forces have sustained resources successfully for centuries, al-though they often fail when rapid change occu ..."
Abstract
-
Cited by 661 (17 self)
- Add to MetaCart
parties, officials, and scientists; complex, redundant, and layered institutions; a mix of institu-tional types; and designs that facilitate experimentation, learning, and change. In 1968, Hardin (1) drew attention to two human factors that drive environmental change. The first factor is the increasing de
GPS-Less Low Cost Outdoor Localization for Very Small Devices.
- IEEE Personal Communications Magazine,
, 2000
"... Abstract-Instrumenting the physical world through large networks of wireless sensor nodes, particularly for applications like environmental monitoring of water and soil, requires that these nodes be very small, light, untethered and unobtrusive. The problem of localization, i.e., determining where ..."
Abstract
-
Cited by 1000 (27 self)
- Add to MetaCart
Abstract-Instrumenting the physical world through large networks of wireless sensor nodes, particularly for applications like environmental monitoring of water and soil, requires that these nodes be very small, light, untethered and unobtrusive. The problem of localization, i.e., determining where
Understanding packet delivery performance in dense wireless sensor networks
, 2003
"... Wireless sensor networks promise fine-grain monitoring in a wide variety of environments. Many of these environments (e.g., indoor environments or habitats) can be harsh for wireless communication. From a networking perspective, the most basic aspect of wireless communication is the packet delivery ..."
Abstract
-
Cited by 661 (15 self)
- Add to MetaCart
performance:the spatio-temporal characteristics of packet loss, and its environmental dependence. These factors will deeply impact the performance of data acquisition from these networks. In this paper, we report on a systematic medium-scale (up to sixty nodes) measurement of packet delivery in three
The Cougar Approach to In-Network Query Processing in Sensor Networks
- SIGMOD Record
, 2002
"... The widespread distribution and availability of smallscale sensors, actuators, and embedded processors is transforming the physical world into a computing platform. One such example is a sensor network consisting of a large number of sensor nodes that combine physical sensing capabilities such as te ..."
Abstract
-
Cited by 498 (1 self)
- Add to MetaCart
such as temperature, light, or seismic sensors with networking and computation capabilities. Applications range from environmental control, warehouse inventory, and health care to military environments. Existing sensor networks assume that the sensors are preprogrammed and send data to a central frontend where
Dynamic source routing in ad hoc wireless networks
- Mobile Computing
, 1996
"... An ad hoc network is a collection of wireless mobile hosts forming a temporary network without the aid of any established infrastructure or centralized administration. In such an environment, it may be necessary for one mobile host to enlist the aid of other hosts in forwarding a packet to its desti ..."
Abstract
-
Cited by 3108 (31 self)
- Add to MetaCart
in which hosts move less frequently. Based on results from a packet-level simulation of mobile hosts operating in an ad hoc network, the protocol performs well over a variety of environmental conditions such as host density and movement rates. For all but the highest rates of host movement simulated
Environmental factors
"... and factors goveming their distribution Carbone organique Acides humiques ..."
Abstract
- Add to MetaCart
and factors goveming their distribution Carbone organique Acides humiques
Environmental Factors
"... Voice and music education literature describe vocal stresses associated with vocal music teaching that may jeopardize vocal integrity. The purpose of this investigation was to systematically examine the predictive ability of three factors associated with professional voice use in elementary vocal mu ..."
Abstract
- Add to MetaCart
Voice and music education literature describe vocal stresses associated with vocal music teaching that may jeopardize vocal integrity. The purpose of this investigation was to systematically examine the predictive ability of three factors associated with professional voice use in elementary vocal
Environmental Factors
, 2009
"... Inaugural-Dissertation Zur Erlangung des Doktorgrades der Philosophie ..."
Results 1 - 10
of
823,412
