This book is about the conservation of genetic diversity of wild plants in situ in
their natural surroundings, primarily in existing protected areas but also outside
conventional protected areas. A lot of effort has been dedicated to conserving plant
biodiversity, but most of this has focused on rare plant communities or individual
species threatened with extinction.
Twenty years ago in the twenty-first edition of the
Principles and Practice of Medicine, the authors
described what was then the practice for the pharmacologic
therapy of patients with heart failure,
which included digoxin and a diuretic . In addition,
the authors noted that recent studies had
supported the potential use of vasodilators in the
treatment of this population of patients.
Research in tropical forestry is confronted with the task of finding strategies to alleviate pressure on remaining forests, and techniques to enhance forest regeneration and restore abandoned lands, using productive alternatives that can be attractive to local human populations. In addition, sustainable forestry in tropical countries must be supported by adequate policies to promote and maintain specific activities at local and regional scales.
The rapidly increasing global population has dramatically increased the demands for
natural resources and has caused signiﬁcant changes in quantity and quality of natural
resources.To achieve sustainable resource management, it is essential to obtain insight-
ful guidance from emerging disciplines such as landscape ecology.This text addresses
the links between landscape ecology and natural resource management.These links are
discussed in the context of various landscape types,a diverse set of resources,and a wide
range ofmanagement issues.
Weeds severely affect crop quality and yield. Therefore, successful farming relies on their control by coordinated management approaches. Among these, chemical herbicides are of key importance. Their development and commercialization began in the 1940's and they allowed for a qualitative increase in crop yield and quality when it was most needed. This book blends review chapters with scientific studies, creating an overview of some the current trends in the field of herbicides.
Water and wastewater utilities across the country are facing many common challenges,
including rising costs, aging infrastructure, increasingly stringent regulatory
requirements, population changes, and a rapidly changing workforce. Effective utility
management can help utilities respond to both current and future challenges and
support utilities in their common mission of being successful 21st century service
Clearly a more stratified approach to clinical trials would help identify those subgroups who
appear to be the best responders to a particular intervention. To date however there is little
to suggest that stratification on the basis of clinical characteristics successfully helps predict
which drugs work best for which patients. There is a pressing need for the development of
biomarkers with clinical utility, for mental health problems.
Exact evidence about incidence of sleep disorders in patients with epilepsy is not available,
but it is supposed, that the amount is higher in patients with epilepsy than in general
population. For example patients with partial epilepsy have twice higher appearence of
sleep disorders as in healthy group (39% vs 18%) (Bazil, 2003). According to this study
higher presence of sleep disorders did not correlate with antiepileptic therapy.
According to Foldvary-Schaefer (2002) patients with epilepsy have problems with
initialization of sleep and have worse quality of sleep.
Since the 1930s, the USDA (U.S. Department of Agriculture) Forest
Service’s International Institute of Tropical Forestry (the Institute) has
studied mahogany and its management. In the 1960s, F.B. Lamb, the author
of the classic book on mahogany (1966), was an Institute collaborator.
Before gene flow and genetic erosion became popular terms, my predecessor
Frank Wadsworth established a gene bank at the Luquillo Experimental
Of the many books that have been written about weed management, most
have focused on the use of herbicides. This volume is different. Instead of providing
information about chemical weed control technologies, the emphasis
here is on weed management procedures that rely on manipulations of ecological
conditions and relationships. By focusing on ecologically based
methods of management, we have been able to provide in-depth treatment of
subjects that most weed science books treat only briefly.
Destination marketing is increasingly becoming extremely competitive worldwide. This paper
explains the destination concept and attempts to synthesise several models for strategic marketing
and management of destinations. It provides an overview of several techniques widely used and
illustrates examples from around the world. The paper also explains that marketing of destinations
should balance the strategic objectives of all stakeholders as well the sustainability of local
Degenerative mitral valve (МV) disease is a common disorder affecting around 2% of the
population (Enriquez-Sarano M et al., 2009). The most common ending in patients with
degenerative valve disease is leaflet rolapsed due to elongation or rupture of the chordal
apparatus, resulting in varying degrees of МV regurgitation due to leaflet malcoaptation
during ventricular contraction.
This book, now in its third edition, began almost 25 years ago when Weed
Ecology: Implications for Vegetation Management was published in 1984. That
text concentrated on the need for farmers, foresters, rangeland managers, and the
researchers who advised them to understand better the biology of weeds and
the role people play in creating and maintaining weeds in agriculture and other
production systems. We were assisted in that first effort by the writings of many
early scientists, such as J. L. Harper, H. G. Baker, and E. J.
There has been a steady increase in anthropogenic pressure over the past few years due to rapid industrialization, urbanization and population growth, causing frequent environmental hazards. Threats of global environmental change, such as climate change and sea level rise, will exacerbate such problems. Therefore, appropriate policies and measures are needed for management to address both local and global trends.
Finally, promotion—what marketing is often stereotyped to
mean—is how to spread the positive word about the product to
influential people and potential customers. Surprisingly,
promotion is a small part of a business analyst or product
manager’s time (maybe 10–20%). So, marketing plans define
much more than what the ads will look like or what
promotional deals will be made. Also, note that the four Ps of
marketing apply to almost anything. There is always a product
(HR web site), a price (free), a placement (intranet), and a
promotion (email) for it.
The world is changing quickly, and our models of
learning, communicating, and acting must change
accordingly. Throughout society we must rethink
basic notions of how we define and accomplish
our goals in a complex and changing environment,
including how we prepare ourselves for professional
careers. This book is an effort in that direction
for students in natural resource management.
It is a response to some of the challenges we perceive
students will face in the early twenty-first
century, and it is a practice field on which they
may begin to develop their skills....
Two million U.S. residents die each year; it is estimated that half
of these deaths are "premature" and attributable to lifestyle and
environmental factors (UC Berkley Wellness Letter 1997). Advances in
biomedical sciences, mass immunization, and sanitation have resulted
in a decrease in the incidence of infectious diseases (Matarazzo 1984),
so that the health status of the population in economically developed
countries now has less to do with acute illness than with lifestyle issues
such as excessive drinking, unhealthy diet, or the use of tobacco
products (Walsh et al.1993).
In the second part of the research, an interface framework was designed. Interactions between the driver and system
have been investigated and used to define information flows. Next, input and output channels have been defined,
indicating which information is presented to the user (output for a particular system state) and which information is
used as input.
For the resulting interface framework four concepts have been designed, differing in feasibility and 'fanciness'.
Health disparities in the United States correlating with race, ethnicity, language, economic
status and other demographic factors have been documented by numerous researchers.
According to the CDC, populations experiencing health disparities are growing as U.S.
demographics change. The future of American health depends on understanding, addressing,
reducing, and eliminating these disparities.
When you complete this chapter you should be able to: Describe the characteristics of arrivals, waiting lines, and service systems; apply the single-channel queuing model equations; conduct a cost analysis for a waiting line; apply the multiple-channel queuing model formulas; apply the constant-service-time model equations; perform a limited-population model analysis.