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This article explores research suggesting that stem-like cells may be at the root of many cancers. Cancer cells are often perceived as all having the same potential to proliferate and expand the disease, but in many types of cancer only a small subset of tumor cells has that power. The tumor-generating cells share key traits with stem cells, including an unlimited life span and the ability to generate a diverse range of other cell types, and are therefore considered cancer stem cells. These malignant progenitors are believed to spring from regulatory failures in damaged stem cells or their immediate offspring. Cancer treatments must target cancer stem cells to eradicate the disease.

The article presents an overview of the role that malignant stem cells may play in the development of cancer in human beings. A discussion of research which has examined the role malignant stem cells play in cancer development is presented. The similarities between tumor generating cells and stem cells are discussed. New cancer treatments that target cancer stem cells are examined. INSETS: Overview;HIERARCHY IN BLOOD-FORMING CELLS;Cornering Cancer Stem Cells.

Discusses the justifications for military interventions in crises by the United States and Europe. Sanctions set by the United Nations Security Council; Indications of the call for intervention; Arbitrariness of interest and inconsistencies in the pattern of international response.

Suggests that the beast-similes in the `Iliad' play a major part in Homer's portrayal of the ethical and psychological problems of heroism. Beast-similes; Types of simile; Varieties of Homeric simile-making; Achilles' rhetorical smile; Life of beasts and warriors; Achilles' fury and self-destruction.

The article discusses the role and capabilities of NATO (North Atlantic Treaty Organization) in 2009 as it celebrates the 60th anniversary of its founding. The author examines the impact of the global financial crisis and the collapse of traditional international structures on NATO. Other topics include forecasts about NATO's future during the years 2009-2019.

Discusses the return of the arc of crisis phenomenon in the Middle East. Comparison of the geopolitical coverage of the political crisis between the 1970s and the 21st century; Concern over the potential complete political meltdown from Central Asia to Central Africa affecting three continents; Role of the Middle Eastern policy of the U.S. and its war against terrorism in the cause and effect of the event; Citation of the presence of U.S. military forces in several Middle East countries; Effect of the absence of a coherent strategic policy on the political meltdown in several countries.

Discusses the impending military invasion of the U.S. and Great Britain of Iraq. Political objectives of the American and British governments on the war in the Gulf; Risks of an air operations military strategy; Effectiveness of a military and international diplomatic pressure.

Reports on the involvement of Great Britain in the Sierra Leone crisis in 2000. Background of the Lome agreement; Details on the United Nations (UN) Mission in Sierra Leone; Troops involved in the UN peacekeeping operations as of 2000; Countries participating in UN operations; Expenses for the Sierra Leone operation.

Focuses on the implications of the March 11, 2004 terrorist bombings in Madrid, Spain on international security. Implications of the bombing on the national elections in the country; Investigations into the bombings; Casualties and extent of damage to property; Theories generated about the mastermind of the bombing; Information gathered on the incident.

Discusses the unintended consequences of the war against terrorism. Result of the western policy failure in the Gulf and south west Asia; Views on the global coalition against terrorism; Possible effect of polarization throughout the Muslim world; Effect of the changes in the Middle East.

Provides information on exhibits scheduled to be opened in London, May 1996, in honor of William Morris and Charles Rennie Mackintosh. Brief history provided on the two honorees; Illustrations presented of their work. INSETS: Books, dates and places to print on the memory.;Time for tea and stencilling..

Highlights the Africa 95 arts exhibition. Education programs; Conferences and seminars.

The article presents answers to a question about a painless click in one hip while walking.

The article presents an interview with Michael Clarke, executive vice president for product and market development at Silverchair Information Systems. When asked about the role of semantics, he says there is a need to disambiguate "semantic technologies" and the "semantic web." He says he doesn't see the end of journals on the horizon. He further comments on what the future holds for the publishing industry.

Focuses on the Anish Kapoor exhibition at the Hayward Gallery in London England. The most striking feature of Kapoor's sculpture in the 1980s, according to the author; Awards he has won, including the Turner Prize and the Premio Duemile prize; Details of the exhibition at the Hayward Gallery.

Focuses on the paintings of artists, Pierre Bonnard. Background information on Bonnard; History of the growing appreciation for art work by Bonnard.

Describes the London, England-based Tate Gallery's activities in its centennial anniversary in 1997. History; Founder Sir Henry Tate; Development of its education program; Exhibition entitled `The Age of Rossetti, Burne-Jones and Watts: Symbolism in Britain 1860-1910'; Program on symbolist imagery for primary pupils. INSET: Educational events/resources..

Lists exhibitions at galleries in London, England, in autumn 1997. Includes the works of James Ensor at the Barbican Gallery; `Bike--A Tour of Bicycle Design 1825-2000,' at the Design Museum; Works of Piero Manzoni at the Serpentine Gallery.

Focuses on the New Designers exhibition at the Business Design Center in London, England. Central aims; Displays set up by Central Saint Martin's College, Brunel University and De Montfort University; Specific design works by students include a man-overboard detection system and a viscous, polymer material.

Reviews the ballad opera `Hallisinia or Money Talks,' written and directed by John Abulafia, music by Cameron Sinclair. Celebration of 300th anniversary of William Hogarth; Children's views on Hogarth's life style.

Provides information on Georges Braque's art exhibition. Information on the selection, juxtaposition and sequence of pictures in the exhibition; Braque's decisive role in the creation of Cubism.

Presents art exhibitions in England for the 1996 autumn/winter season. Includes `Making and Meaning: Ruben's Landscapes'; `Private Eye Times'; `Christopher Wood: A Painter Between Two Cornwalls.'

Focuses on Robert Mapplethorpe's art exhibitions at the Hayward Gallery in London, England shown until November 17, 1996. `Self Portrait 1978'; `Field for the British Isles'; `Self Portrait 1980.'

Features the giant-sized works of Swedish sculptor Claes Oldenburg. Projects for monumental commonplace objects such as cigarette butts, electric fan, and a pick axe; Specifically genital connotations in the sculpture `Soft Saxophone,'; Other works; Tour of `The Multiples Store,' exhibit in Middlesbrough, England.

Features the touring British exhibition Past the Future which involves Year 10 pupils from Langdon Park School and adults from the London Borough of Tower Hamlets in public and community arts activities. `Magic Me' and `The Art of Change' as themes of the exhibit.

Informs about the Tate exhibition in Britain called `Dynasties: Tudor and Jacobean Portraiture 1530-1630,' and the National Theatre's production of Ben Johnson's `Volpone' in a program involving the Tate gallery, the Royal National Theatre and the orchestra of St. John's Smith Square. First phase of the three year program being held on December 1, 1995 in Southwark Cathedral with the performance of students from Southwark and Lambeth secondary schools; Details.

Explores the concept of portraiture through exhibits at the National Portrait Gallery in London, England. BP Portrait Award exhibition; Interactive exhibition titled `Put Yourself in the Picture' for children. .

Reports on the holding of poetry and art project at Bishop Rawstorne Church of England High School in Preston. Duration of the workshops; Age range of the participants; Support from Liverpool's Walker Art Gallery.

Discusses the tercentenary celebrations of the birth of Lord Burlington. Show on town architecture; Exhibition on Burlington's villa and garden at Chiswick; Book entitled `The Palladian Revival: Lord Burlington, His Villa and Garden at Chiswick.'

Comments on the paintings of French painter Nicolas Poussin. Poussin as the Father of French painting; Elements in Poussin's work distinguishing him from other painters; Career history of Poussin.

Observes the focus of BBC 1 television program `Omnibus: `The Gentle Art of Making Enemies'' on James McNeill Whistler's controversial painting style. Whistler's paintings exhibited at the Tate Gallery in Great Britain; Whistler's extraordinary painting technique.

Presents highlights of music and arts events at the South Bank, London's German Romantics festival. Educational possibilities; Hayward Gallery's exhibitions; British Broadcasting Corp.'s production of Goethe's `Faust'.

Reviews the 1994 summer exhibitions of graduate and post-graduate art and design at the Business Design Center in Islington, London, England.

Focuses on the curriculum of the course, Post-Graduate Certificate of Education, at the Institute of Education in London, England. Equal emphases on art and design, and learning and understanding; Technical and non-skilled based workshops; Exhibition of students' works.

Reports on the works on display at the Design Council Gallery in London. British prizewinners who exhibited at Textprint in Frankfurt.

Reports on the art and music project called `Talking Heads' at Brampton Manor School in London, England. Creation of drawings, photographs, sculptures and music inspired by an exhibition of work by Italian sculptor Medardo Rosso; Integration of creative, critical and contextual studies within the overall process of making; Background on how the project began.

Reports on the reopening of the Ham House museum in Surrey, England. Museum as former house and garden of the Duke of Lauderdale; Fusion of house, furnishings, gardens and meadow; Educational possibilities of the visual and material resource.

Lists activities for young people to accompany the exhibition of painter and sculptor Pablo Picasso's works at the Tate Gallery in England. Workshops to examine the occasions when Picasso's sculpture came to the fore; Student opera `Lighting the Candle'; Release of the book `Perspectives on Picasso'.

Reports on the school-based project in Westminster, England designed to develop the arts curriculum in Westminster schools by bringing practicing artists into the classroom. `Our Street' as theme; Financial assistance from the London Arts Board; Natural and man-made objects, human behavior and public incidents as subjects; Participation of artists and teachers.

Profiles the National Portrait Gallery in London, England. Collection of works of art that manifest the national culture; Educational potential; Government funding for the gallery's redevelopment and extension; Promotion of exhibitions; Monthly offer of courses for students.

Focuses on the Camden Arts Center in London, England. Venue for contemporary art; Extensive studio facilities for art education; Course offerings for young adults and children; Professional painters and sculptors as course tutors and workshop leaders; Paul Hamlyn Foundation's funding of programs at the Center for children at key stages 1 and 2.

Reports on an exhibit of the works of British photographer Bill Brandt at the Barbican Gallery in London on December 12, 1993. Brandt's familiarity with European modernist movements; Talent for illustration; Education workshops for teachers; Contact information.

Reports on the opening of the Courtyard Galleries, an extension of the National Museum of Wales, in October 1993. Opportunities for art teachers and their pupils; Description of building and design; Selection, arrangement and display of artists; Educational possibilities; Description of the exhibition entitled `The Evolution of Wales'; contact information.

Features Ben Nicholson's retrospective exhibition at the Tate Gallery. Abstraction content; Progress of work; Refusal to categorize paintings; Membership in organizations; Other media.

Reports on the restoration of the Victorian town hall of the town of Reading in England. Completion of work on the neo-Gothic exterior; Reading Museum and Gallery display of Bayeux tapestry; Video and audio presentation; Education program for preservation and interpretation of Bayeux art.

Features the American Art in the 20th Century exhibition by the Royal Academy's education department in London, England. Accusations of partiality; Attempt to invent an America art; Abstract Expressionist, Pop, Minimal and Conceptual art during the period 1945-1970; Illustrated teachers' pack; Advise for teachers with plans for group visits to the exhibition.

Reviews the art exhibition `RSA Awards Exhibition.'

Reviews the art exhibition `New Contemporaries '93.'

Presents the collections within the Tate Gallery in St. Ives, Cornwall. Architectural design of the gallery; Art contributions by well-known and local artists; Peter Lanyon's `Air, Land and Sea project'; Terry Frost; Patrick Heron; Andy Hughes' `Sea Fever': Surf Art Project 1993; Projects and exhibitions undertaken by the gallery's management.