Eating Less for a Longer Life essays

Eating Less for a Longer Life essays Within the article, "Eating Less May Extend Human Life," there are three main studies discussed. Those studies have a population of rodents, rhesus monkeys, and male humans respectively. The three groups the study specifics, are all slightly different in both population and scientific characteristics. Though each study is different they all reflect similarities of findings and suggest that further research will yield promising results. In the rodent tests, the article suggests that there have been several tests conducted on both mice and rats with predictable results, include a test and a control group. The test group consists of a population of rodents with a reduced dietary intake of about 30 percent. In addition to this those rodents within the test group also share three biomarkers, thought to be as a result of the reduced caloric intake, lower body temperature, lower blood sugar and high levels of the hormone DHEAS. The control group of this particular study is a group of rodents with both normal caloric intake and lower life span. The results for the Rhesus monkey study are still preliminary, the test started 15 years ago must reflect the normal lifespan of the Rhesus monkey, about 25 years in order to contend scientific results. "Statistically, at least half of the monkeys will have to complete their normal lifespan before the data is considered significant, said Roth" (AP 2003, pp. 3). Regardless of this fact indicators suggest that the control group is consistently living shorter lives on a normal caloric diet and lacking the three biomarkers present in the super aged rodent population. The human test also preliminary is also slightly different than the other two studies. The human male study, occurring in Baltimore, MD, does not include a test group being denied caloric intake. Instead the studies test group includes a group of men who consistently possess the three biomarkers found in both the test rodent and monkey p...

Discover Trompe lOeil Art in Painting and Architecture

Discover Trompe l'Oeil Art in Painting and Architecture French for fool the eye,  trompe loeil art creates the illusion of reality. Through skillful use of color, shading, and perspective, painted objects appear three-dimensional.  Faux finishes like marbling and wood graining add to the trompe loeil effect. Applied to furniture, paintings, walls, ceilings, decorative items, set designs, or building facades, trompe l’oeil art inspires a gasp of surprise and wonder. Although tromper means to deceive, viewers are often willing participants, delighting in the visual trickery. Trompe l'Oeil Art Shading and perspectiveFaux finishes3-D effects Pronounced tromp loi, trompe-l’oeil may be spelled with or without a hyphen. In French, the  Ã…“  ligature is used:  trompe l’œil. Realistic artworks were not described as trompe-loeil until the late 1800s, but the desire to capture reality dates back to ancient times. Early Frescoes Fresco from the House of Meleagro, Pompeii,1st Century.   Photo  ©DEA / G. NIMATALLAH/ Getty   In ancient Greece and Rome, artisans applied pigments to wet plaster to create life-like details. Flat surfaces appeared three dimensional when painters added false columns, corbels, and other architectural ornaments. The Greek artist Zeuxis (5th century B.C.) is said to have painted grapes so convincing, even birds were deceived. Frescoes (plaster wall paintings) found in Pompeii and other archaeological sites contain trompe loeil elements. For many centuries, artists continued to use the wet plaster method to transform interior spaces. In villas, palaces, churches, and cathedrals, trompe loeil images gave the illusion of vast space and distant vistas. Through the magic of perspective and skillful use of light and shadow, domes became sky and windowless spaces opened to imaginary vistas. Renaissance artist Michelangelo (1475 -1564) used wet plaster when he filled the vast ceiling of the Sistine Chapel with cascading angels, Biblical figures, and an enormous bearded God surrounded by trompe loeil columns and beams. Secret Formulas Dresden Triptych, Oil on Oak, 1437, by Jan van Eyck. Dresden State Art Collections, Gemldegalerie Alte Meisterm.   DEA / E. LESSING / Getty Images By painting with wet plaster, artists could give walls and ceilings rich color and a sense of depth. However, plaster dries quickly. Even the greatest fresco painters could not achieve subtle blending or precise details. For smaller paintings, European artists commonly used egg-based tempera applied to wood panels. This medium was easier to work with, but it also dried quickly. During the Middle Ages and the Renaissance, artists searched for new, more flexible paint formulas. The Northern European painter Jan Van Eyck (c.1395-c.1441) popularized the idea of adding boiled oil to pigments. Thin, nearly transparent glazes applied over wood panels gave objects a life-like gleam. Measuring less than thirteen inches long, Van Eycks Dresen Triptych is a tour de force with ultra real  images of Romanesque columns and arches. Viewers can imagine they are looking through a window into a Biblical scene. Faux carvings and tapestries enhance the illusion. Other Renaissance painters invented their own recipes, combining the traditional egg-based tempera formula with a variety of ingredients, from powdered bone to lead and walnut oil. Leonardo da Vinci (1452-1519) used his own experimental oil and tempera formula when he painted his famous mural, The Last Supper. Tragically, da Vinci’s methods were flawed and the breathtakingly realistic details began to flake within a few years. Dutch Deceivers Tromp-loeil Still-Life, 1664, by Samuel Dirksz, vanHoogstraten. Dordrechts Museum Collection.   Fine Art Images/Heritage Images/Getty Images During the 17th century, Flemish still life painters became known for optical illusions. Three-dimensional objects seemed to project from the frame. Open cabinets and archways suggested deep recesses. Stamps, letters, and news bulletins were depicted so convincingly, passersby might be tempted to pluck them from the painting. Sometimes images of brushes and palettes were included to call attention to the deception. There’s an air of delight in the artistic trickery, and it’s possible that the Dutch masters competed in their efforts to conjure reality. Many developed new oil-and wax-based formulas, each claiming that their own offered superior properties. Artists like Gerard Houckgeest (1600-1661), Gerrit Dou (1613-1675), Samuel Dirksz  Hoogstraten  (1627-1678), and Evert Collier (c.1640-1710) could not have painted their magical deceptions if not for the versatility of the new mediums. Eventually, advanced technologies and mass-production made the painting formulas of the Dutch masters obsolete. Popular tastes moved toward expressionist and abstract styles. Nevertheless, a fascination for trompe loeil realism persisted through the nineteenth and twentieth centuries. American artists De Scott Evans (1847-1898),  William Harnett (1848–1892), John Peto (1854–1907), and John Haberle (1856-1933) painted meticulous still lifes in the tradition of the Dutch illusionists. French-born painter and scholar Jacques Maroger (1884-1962) analyzed the properties of early paint mediums. His classic text,The Secret Formulas and Techniques of the Masters, included recipes he claimed to have rediscovered. His theories reawakened interest in classical styles, stirred controversy, and inspired writers. Modern Magic Artist Tjalf Sparnaay with one of his megarealistic paintings. cc Tjalf Sparnaay   Merogers return to classical techniques was one of many realistic styles that emerged during the second half of the 20th century. Realism gave modern-day artists a way to explore and reinterpret the world with scientific precision and ironic detachment. Photorealists painstakingly reproduced photographic images. Hyperrealists toyed with realistic elements, exaggerating details, distorting scale, or juxtaposing figures and objects in unexpected ways.  Dutch painter Tjalf Sparnaay (shown above) calls himself a â€Å"megarealist† because he paints â€Å"mega-sized† versions of commercial products. My intention is to give these objects a soul and a renewed presence,† Sparnaay explains on his website. 3-D Street Art Mural for Fontainebleau Hotel, Richard Haas, Designer, Created 1985-86, Demolished 2002. Corbis Documentary / Getty Images Trompe l’oeil by contemporary artists  can be whimsical, satirical, disturbing, or surreal. Incorporated into paintings, murals, advertising posters, and sculpture, the deceptive images often defy the laws of physics and toy with our perception of the world. Artist Richard Haas made deft use of trompe l’oeil magic when he designed a six-story mural for the Fontainebleau Hotel in Miami. False finishes transformed a blank wall into a triumphal arch made of mortared stone blocks (shown above). The enormous fluted column, the twin caryatids, and the bass relief flamingos were tricks of light, shadow, and perspective.The sky and waterfall were also optical illusions, teasing passersby into believing they might stroll through the arch to the beach. The Fontainebleau mural entertained Miami visitors from 1986 until 2002, when the wall was demolished to make way for real, rather than trompe l’oeil, views of the waterside resort. Commercial wall art like the Fontainebleau mural is often transitory. Weather takes a toll, tastes change, and new construction replaces the old. Nevertheless, 3-D street art plays an important role in reshaping our urban landscapes. Time-bending murals by French artist Pierre Delavie conjure historic vistas. German artist Edgar Mueller turns street pavement into heart-thumping views of cliffs and caves. American artist John Pugh opens walls with eye-deceiving images of impossible scenes. In cities around the world, trompe loeil mural artists force us to ask: What is real? What is artifice? What is important? Sources Deceptions and Illusions: Five Centuries of Trompe LOeil Painting, by Sybille Ebert-Schifferer with essays by Sybille Ebert-Schifferer ... [et al.]; Catalog of an exhibition held at the National Gallery of Art, Washington, D.C., Oct. 13, 2002-Mar. 2, 2003.Historical Painting Techniques, Materials, and Studio Practice, by The J. Paul Getty Trust, 1995 [PDF, accessed April 22, 2017] ; https://www.getty.edu/conservation/publications_resources/pdf_publications/pdf/historical_paintings.pdfMusee du Trompe lOeil, museedutrompeloeil.com/en/trompe-loeil/The Secret Formulas and Techniques of the Masters by Jacques Maroger (trans.  Eleanor Beckham), New York: Studio Publications, 1948.