Vascular epiphytes in the southern deciduous forests of Ontario

1975 ◽  
Vol 53 (10) ◽  
pp. 988-1015 ◽  
Author(s):  
Paul F. Maycock

The occurrence of vascular epiphytes in the deciduous and deciduous–evergreen forests of southern Ontario, particularly in the southern deciduous forests of Point Pelee, Essex County, is presented. The general and specific ecology of vascular epiphytes is examined and compared in detail with that of such plants in other temperate areas of the world, particularly the United States and northern Europe. Twelve different species of plants have been found growing in 21 different epiphytic situations in the Pelee forests. Throughout the southern forests of Ontario a total of 25 plants has been recorded in a total of 34 arboreal habitats. In all, just 13 species of trees served as hosts for these vascular epiphytes and these are predominantly deciduous. Red oak and hackberry account for 50% of the epiphytic sites provided. General patterns associated with vascular epiphytism in temperate forest localities in North America and Europe are discussed.


2018 ◽  
Vol 110 (1) ◽  
pp. 9-34
Author(s):  
Jack Cecillon

In the 1880s, the southwestern region of Ontario, including Essex County and Pelee Island, became home to a series of pioneering winemakers. While the story of the winemakers of Pelee Island has been told, far less has been written about the vineyards of the Windsor border region. Jules Robinet, emerged as a successful winemaker at the turn of the 20th century after a series of hardships wiped out most of his competition. In time, Robinet`s business flourished with the enactment of Prohibition laws in Canada and the United States. An immigrant from Rougemont, France, Robinet served as a key link in the migration chain of French labourers and grape growers who settled in and around the Town of Sandwich. For French immigrants, he emerged as an employer, business associate, and advocate for the community that found its roots in the very same region of France.



2006 ◽  
Vol 13 (5) ◽  
pp. 185-186
Author(s):  
S. P. Stratton ◽  
M. S. Stratton ◽  
D. S. Alberts

Skin cancer presents a significant public health problem because of its increasing incidence in the United States, Australia, Northern Europe, and other temperate climates around the world. [...]



2007 ◽  
Vol 7 (2) ◽  
pp. 59-63 ◽  
Author(s):  
benjamin scheindlin

Lactose intolerance is an inability to digest milk sugar, characterized by abdominal cramps, nausea, and diarrhea after ingesting milk products. It develops in adolescence or adulthood among those whose bodies naturally stop producing the lactose-digesting enzyme lactase after childhood. Although uncommon in the United States, lactose intolerance actually occurs in the majority of people around the world. The ability to continue producing lactase, and thus to digest milk products, is a relatively recent evolutionary development. After presentation of an illustrative clinical example, the biology of lactase production and lactose intolerance is reviewed. The "culture-historical" hypothesis of Simoons in the 1970's held that persistent lactase production developed in a dairy herding population in Northern Europe during a time of food scarcity, when the ability to digest milk would have provided a survival advantage. Simoons demonstrated that low prevalence of lactose intolerance was associated with pastoral practices among early populations around the world. Hirschhorn recently provided strong genetic evidence for the culture-historical hypothesis using contemporary techniques of genomics and single nucleotide polymorphisms. His research group found that European derived persistent lactase production is due to a mutation near the lactase gene that occurred only about 10 million years ago and rapidly increased in prevalence.



2017 ◽  
Vol 2 (11) ◽  
pp. 73-78
Author(s):  
David W. Rule ◽  
Lisa N. Kelchner

Telepractice technology allows greater access to speech-language pathology services around the world. These technologies extend beyond evaluation and treatment and are shown to be used effectively in clinical supervision including graduate students and clinical fellows. In fact, a clinical fellow from the United States completed the entire supervised clinical fellowship (CF) year internationally at a rural East African hospital, meeting all requirements for state and national certification by employing telesupervision technology. Thus, telesupervision has the potential to be successfully implemented to address a range of needs including supervisory shortages, health disparities worldwide, and access to services in rural areas where speech-language pathology services are not readily available. The telesupervision experience, potential advantages, implications, and possible limitations are discussed. A brief guide for clinical fellows pursuing telesupervision is also provided.



2011 ◽  
Vol 23 (4) ◽  
pp. 186-191 ◽  
Author(s):  
Malini Ratnasingam ◽  
Lee Ellis

Background. Nearly all of the research on sex differences in mass media utilization has been based on samples from the United States and a few other Western countries. Aim. The present study examines sex differences in mass media utilization in four Asian countries (Japan, Malaysia, South Korea, and Singapore). Methods. College students self-reported the frequency with which they accessed the following five mass media outlets: television dramas, televised news and documentaries, music, newspapers and magazines, and the Internet. Results. Two significant sex differences were found when participants from the four countries were considered as a whole: Women watched television dramas more than did men; and in Japan, female students listened to music more than did their male counterparts. Limitations. A wider array of mass media outlets could have been explored. Conclusions. Findings were largely consistent with results from studies conducted elsewhere in the world, particularly regarding sex differences in television drama viewing. A neurohormonal evolutionary explanation is offered for the basic findings.



2020 ◽  
Vol 2 (4) ◽  
pp. 32-54
Author(s):  
Silvia Spitta

Sandra Ramos (b. 1969) is one of the few artists to reflect critically on both sides of the Cuban di-lemma, fully embodying the etymological origins of the word in ancient Greek: di-, meaning twice, and lemma, denoting a form of argument involving a choice between equally unfavorable alternatives. Throughout her works she shines a light on the dilemmas faced by Cubans whether in Cuba or the United States, underlining the bad personal and political choices people face in both countries. During the hard 1990s, while still in Havana, the artist focused on the traumatic one-way journey into exile by thousands, as well as the experience of profound abandonment experienced by those who were left behind on the island. Today she lives in Miami and operates a studio there as well as one in Havana. Her initial disorientation in the USA has morphed into an acerbic representation and critique of the current administration and a deep concern with the environmental collapse we face. A buffoonlike Trumpito has joined el Bobo de Abela and Liborio in her gallery of comic characters derived from the rich Cuban graphic arts tradition where she was formed. While Cuba is now represented as a rotten cake with menacing flies hovering over it ready to pounce, a bombastic Trumpito marches across the world stage, trampling everything underfoot, a dollar sign for a face.



Author(s):  
Thomas Borstelmann

This book looks at an iconic decade when the cultural left and economic right came to the fore in American society and the world at large. While many have seen the 1970s as simply a period of failures epitomized by Watergate, inflation, the oil crisis, global unrest, and disillusionment with military efforts in Vietnam, this book creates a new framework for understanding the period and its legacy. It demonstrates how the 1970s increased social inclusiveness and, at the same time, encouraged commitments to the free market and wariness of government. As a result, American culture and much of the rest of the world became more—and less—equal. This book explores how the 1970s forged the contours of contemporary America. Military, political, and economic crises undercut citizens' confidence in government. Free market enthusiasm led to lower taxes, a volunteer army, individual 401(k) retirement plans, free agency in sports, deregulated airlines, and expansions in gambling and pornography. At the same time, the movement for civil rights grew, promoting changes for women, gays, immigrants, and the disabled. And developments were not limited to the United States. Many countries gave up colonial and racial hierarchies to develop a new formal commitment to human rights, while economic deregulation spread to other parts of the world, from Chile and the United Kingdom to China. Placing a tempestuous political culture within a global perspective, this book shows that the decade wrought irrevocable transformations upon American society and the broader world that continue to resonate today.



Author(s):  
Jakub J. Grygiel ◽  
A. Wess Mitchell ◽  
Jakub J. Grygiel ◽  
A. Wess Mitchell

From the Baltic to the South China Sea, newly assertive authoritarian states sense an opportunity to resurrect old empires or build new ones at America's expense. Hoping that U.S. decline is real, nations such as Russia, Iran, and China are testing Washington's resolve by targeting vulnerable allies at the frontiers of American power. This book explains why the United States needs a new grand strategy that uses strong frontier alliance networks to raise the costs of military aggression in the new century. The book describes the aggressive methods which rival nations are using to test American power in strategically critical regions throughout the world. It shows how rising and revisionist powers are putting pressure on our frontier allies—countries like Poland, Israel, and Taiwan—to gauge our leaders' commitment to upholding the American-led global order. To cope with these dangerous dynamics, nervous U.S. allies are diversifying their national-security “menu cards” by beefing up their militaries or even aligning with their aggressors. The book reveals how numerous would-be great powers use an arsenal of asymmetric techniques to probe and sift American strength across several regions simultaneously, and how rivals and allies alike are learning from America's management of increasingly interlinked global crises to hone effective strategies of their own. The book demonstrates why the United States must strengthen the international order that has provided greater benefits to the world than any in history.



2008 ◽  
Vol 12 (1) ◽  
Author(s):  
Anthony G Picciano ◽  
Robert V. Steiner

Every child has a right to an education. In the United States, the issue is not necessarily about access to a school but access to a quality education. With strict compulsory education laws, more than 50 million students enrolled in primary and secondary schools, and billions of dollars spent annually on public and private education, American children surely have access to buildings and classrooms. However, because of a complex and competitive system of shared policymaking among national, state, and local governments, not all schools are created equal nor are equal education opportunities available for the poor, minorities, and underprivileged. One manifestation of this inequity is the lack of qualified teachers in many urban and rural schools to teach certain subjects such as science, mathematics, and technology. The purpose of this article is to describe a partnership model between two major institutions (The American Museum of Natural History and The City University of New York) and the program designed to improve the way teachers are trained and children are taught and introduced to the world of science. These two institutions have partnered on various projects over the years to expand educational opportunity especially in the teaching of science. One of the more successful projects is Seminars on Science (SoS), an online teacher education and professional development program, that connects teachers across the United States and around the world to cutting-edge research and provides them with powerful classroom resources. This article provides the institutional perspectives, the challenges and the strategies that fostered this partnership.



Sign in / Sign up

Export Citation Format

Share Document