Technegas-a new ventilation agent for lung scanning
WM BURCH, PJ Sullivan… - Nuclear medicine …, 1986 - journals.lww.com
A simple process using technetium-99m generator eluate in a graphite crucible at 2500 [degrees]
C, produces a structured ultra-fine dispersion of labelled carbon. Particle sizes are 5.0 …
C, produces a structured ultra-fine dispersion of labelled carbon. Particle sizes are 5.0 …
Beyond urban legends: an emerging framework of urban ecology, as illustrated by the Baltimore Ecosystem Study
The emerging discipline of urban ecology is shifting focus from ecological processes embedded
within cities to integrative studies of large urban areas as biophysical-social complexes. …
within cities to integrative studies of large urban areas as biophysical-social complexes. …
A conceptual framework for the study of human ecosystems in urban areas
STA Pickett, WR Burch, SE Dalton, TW Foresman… - Urban …, 1997 - Springer
The need for integrated concepts, capable of satisfying natural and social scientists and
supporting integrated research, motivates a conceptual framework for understanding the role of …
supporting integrated research, motivates a conceptual framework for understanding the role of …
The human ecosystem part I: the human ecosystem as an organizing concept in ecosystem management
GE Machlis, JE Force, WR Burch Jr - Society & Natural Resources, 1997 - Taylor & Francis
<p> <italic>The organization and description of a comprehensive ecosystem model useful
to ecosystem management is necessary. In this article, we propose the</italic> human …
to ecosystem management is necessary. In this article, we propose the</italic> human …
The social circles of leisure: Competing explanations
WR Burch Jr - Journal of leisure research, 1969 - Taylor & Francis
This paper illustrates some theoretical possibilities for research on leisure behavior. There
is an attempt to make explicit two hypotheses which often are implicit in our explanations of …
is an attempt to make explicit two hypotheses which often are implicit in our explanations of …
Passage of inhaled particles into the blood circulation in humans
WM Burch - Circulation, 2002 - Am Heart Assoc
It is clear from Figure 2 in the article by Nemmar et al1 that their aerosol contained a high
level of a species somewhere between Technegas and Pertechnegas. Technegas generation …
level of a species somewhere between Technegas and Pertechnegas. Technegas generation …
A social ecology approach and applications of urban ecosystem and landscape analyses: a case study of Baltimore, Maryland
JM Grove, WR Burch - Urban Ecosystems, 1997 - Springer
The early interactions between plant, animal, and human ecology in the 1920s in the United
States provide an initial basis for understanding and directing an integrated ecosystem …
States provide an initial basis for understanding and directing an integrated ecosystem …
Rainwater harvesting agriculture: an integrated system for water management on rainfed land in China's semiarid areas
F Li, S Cook, GT Geballe, WR Burch Jr - AMBIO: A Journal of the Human …, 2000 - BioOne
Rainwater harvesting agriculture (RHA), which was first developed by scientists in Gansu
province over a decade ago, is an integrated system for water management on rainfed land in …
province over a decade ago, is an integrated system for water management on rainfed land in …
Data and methods comparing social structure and vegetation structure of urban neighborhoods in Baltimore, Maryland
…, ML Cadenasso, WR Burch Jr… - Society and Natural …, 2006 - Taylor & Francis
Recent advances in remote sensing and the adoption of geographic information systems (GIS)
have greatly increased the availability of high-resolution spatial and attribute data for …
have greatly increased the availability of high-resolution spatial and attribute data for …
Interdisciplinary research: maintaining the constructive impulse in a culture of criticism
STA Pickett, WR Burch Jr, JM Grove - Ecosystems, 1999 - JSTOR
We approach the benefits and burdens of interdis-ciplinary research (IDR) from the perspective
that science involves both constructive and critical ap-proaches. The constructive aspect …
that science involves both constructive and critical ap-proaches. The constructive aspect …