Water scarcity has been increasing around the world due to both demand and supply side factors, in particular population growth and climate change. Even in the U.S. states are experiencing water shortages and these problems seem likely to expand in the future, particularly in the southwestern United States. With future supplies in question and projected demand increases it is natural to wonder if current water use patterns are efficient.
This study estimates and compares the average cost of personal passenger automobile insurance premiums in each of the 10 Canadian provinces for the year 2007. Six provinces (Alberta, Ontario, New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland and Labrador) have private competitive insurance industries that provide auto insurance for their populations in a regulated market environment. Three provinces (British Columbia, Saskatchewan, and Manitoba) each have a government-owned automobile insurer that has a monopoly over the provision of basic auto insurance and also competes for the sale of optional insurance coverage with private companies. Government insurers in these three provinces occupy between 95 and 98 percent of market share (Skinner, 2006). One province (Quebec) has a government insurer with a monopoly over basic auto insurance, but which does not compete with the private sector for the sale of optional insurance coverage and therefore occupies a much smaller market share than government insurers in British Columbia, Saskatchewan, or Manitoba.
It is important to compare the cost of auto insurance among the provinces to verify the validity of published claims that provinces with government auto insurers produce lower premiums for drivers than provinces that rely on private sector competition for the delivery of auto insurance (CAC, 2003).
Growth of any tissue requires the formation of a functional and mature vasculature. Adipose tissue, unlikeother organs, grows and develops continuously throughout life. In vitro studies showed that differentiating adipocytes and adipose tissue explants trigger blood vessel formation and that in turn adipose tissue endothelial cells promote preadipocyte differentiation. Furthermore, adipose tissue growth in mice can be impaired with angiogenesis inhibitors or inactivation of proangiogenic factors.
Vascular endothelial growth factor-A (VEGF-A) plays a pivotal role in both physiological and pathological angiogenesis through the increase of proliferation and migration of endothelial cells and permeabilization of blood vessels by inducing fenestrations in the endothelium. VEGF-A is highly expressed in adipose tissue and its expression increases significantly during adipocyte differentiation in several experimental models. This close relationship between adipogenesis and VEGF-A induced angiogenesis has been demonstrated in in vitro and in in vivo studies. The inhibition of angiogenesis by VEGF receptor-2 blocking antibodies not only reduced angiogenesis but also inhibited murine adipose cell differentiation.
