Organic chemists working on the synthesis of natural products have long found a special challenge in the preparation of peptides and proteins. However, more reliable, more efficient synthetic preparation methods have been developed in recent years. This reference evaluates the most important synthesis methods available today, and also considers methods that show promise for future applications. This text describes the state of the art in efficient synthetic methods for the synthesis of both natural and artificial large peptide and protein molecules. Subjects include an introduction to basic topics, linear solid-phase synthesis of peptides, peptide synthesis in solution, convergent solid-phase synthesis, methods for the synthesis of branched peptides, formation of disulfide bridges, and more. The book emphasizes strategies and tactics that must be considered for the successful synthesis of peptides.
This authoritative title is the definitive avifauna covering the Iberian Peninsula. The Iberian Peninsula is one of Europe's most ornithologically varied regions offering a host of regional specialities. It includes famous birding hotspots such as the Coto Donaña wetlands, mountainous areas such as the Picos de Europa and the Pyrenees, the Mediterranean cork and holm oak forests of the southwest, the migration crossroads of the Strait of Gibraltar and the steppe-like plains of Extremadura and Alentejo. Large numbers of birders from around Europe visit the region to see this wealth of winged wildlife, but to date there has been no comprehensive regional avifauna in English. Birds of the Iberian Peninsula is a national avifauna that fills this gap in the ornithological literature. Full-colour throughout, the book begins with authoritative introductory chapters covering subjects such as geography, climate, habitats, the history of Iberian ornithology and the composition of the avifauna. The species accounts then cover every species recorded in mainland Spain, the Balearic Islands, Portugal, Gibraltar and Andorra, including the many vagrants. For each species there is detailed treatment of distribution – with maps of breeding and wintering ranges – habitat selection, population trends, historical and current status, migration and conservation.
TOPICS IN THE BOOK The UK’s ‘’Shortage of Occupation Scheme’’: Advanced Stage of Neo-Colonialism on the Health System of Less Developed Countries: The Case of Nigeria Language Interconnectedness for Strategic Relations: The Case of Indonesian and Kiswahili Impact of Foreign Aid on Economic Growth in Kenya 2006-2020 Impact of Globalization on the Intensification of Economic, Political, Social and Cultural Relations in Africa Impact of Russia and Ukraine War on the Global Economy Impact of Social Movements on Social Change The Use of Sanction by Super Powers Countries and Their Impact on Other Countries Impact of Traumatic Disorder on Families of United Nation Soldiers Deployed on Peace Keeping Missions
Organic chemists working on the synthesis of natural products have long found a special challenge in the preparation of peptides and proteins. However, more reliable, more efficient synthetic preparation methods have been developed in recent years. This reference evaluates the most important synthesis methods available today, and also considers methods that show promise for future applications. This text describes the state of the art in efficient synthetic methods for the synthesis of both natural and artificial large peptide and protein molecules. Subjects include an introduction to basic topics, linear solid-phase synthesis of peptides, peptide synthesis in solution, convergent solid-phase synthesis, methods for the synthesis of branched peptides, formation of disulfide bridges, and more. The book emphasizes strategies and tactics that must be considered for the successful synthesis of peptides.
Told in his trademark subdued, stripped-down writing style, Green Hills of Africa recounts American writer Ernest Hemingway’s December 1933 big-game safari in East Africa. Accompanied by his wife, P.O.M. (Pauline Pfeiffer), Hemingway, aided by local Masai guides, ventures into beautiful, untouched parts of the dark continent on a quest to bring down an elusive kudo. HarperPerennial Classics brings great works of literature to life in digital format, upholding the highest standards in ebook production and celebrating reading in all its forms. Look for more titles in the HarperPerennial Classics collection to build your digital library.
The Dangerous Summer is Hemingway's firsthand chronicle of a brutal season of bullfights. In this vivid account, Hemingway captures the exhausting pace and pressure of the season, the camaraderie and pride of the matadors, and the mortal drama—as in fight after fight—the rival matadors try to outdo each other with ever more daring performances. At the same time Hemingway offers an often complex and deeply personal self-portrait that reveals much about one of the twentieth century's preeminent writers.
Este volumen reúne los artículos que el Premio Nobel de Literatura publicó en Toronto Star entre 1920 y 1924, cuando aún no era conocido. Los artículos que Hemingway escribió para el Toronto Star entre 1920 y 1924 son en su mayoría anteriores a la carrera literaria del autor. Estos reportajes le permitieron ganarse la vida con la escritura y ver mundo, en especial Europa, cuando aún era un joven impresionable y desconocido que apenas había publicado unos cuantos relatos y novelas breves en ediciones de corta tirada. Aquí se vislumbra lo que sería el estilo del autor, su dominio de los diálogos y algunos temas que serán recurrentes en su obra, de tal manera que, como afirma William White -el especialista en Hemingway encargado de esta selección de artículos-, surge ya «el escritor creativo y el autor de algunos de los mejores relatos y novelas de nuestro tiempo». Reseña: «Hemingway es un buen escritor. Escribe tal como es. Nos gusta.» James Joyce
Una obra póstuma, aunque terminada en vida, sobre la complejidad del amor y de la creación artística. Por el Premio Nobel de Literatura Ernest Hemingway. La concepción y redacción de El jardín del Edén se inició en 1946, contemporánea de otras novelas que vieron la luz en vida del autor, como El viejo y el mar o París era una fiesta. Pero no llegó a las imprentas hasta veinticinco años después de la muerte de Hemingway. Es, por tanto, una obra póstuma, aunque terminada en vida, que trata, con una interpretación profunda, gran imaginación y una prosa vivaz, sobre la complejidad del amor y de la creación artística a través de un atípico triángulo amoroso entre el protagonista, David Bourne, su mujer Catherine y una joven que la propia Catherine coloca en el camino de su marido. No se trata exactamente de una novela autobiográfica, aunque el protagonista sea un escritor americano al que empieza a saludar el éxito, ni de una novela sobre un atípico triángulo amoroso. Es, más bien, la revelación de la ternura y vulnerabilidad que Hemingway, como ser humano, ocultaba tras su imagen pública; la amarga explicación de las características principales del artista y del precio que ha de pagar para mantener su vocación; y el nacimiento de una de las heroínas más logradas y complejas del autor: Catherine Bourne. Reseña: «Hemingway es el Stendhal de nuestro tiempo.» Cesare Pavese
Ernest Hemingway's novella The Torrents of Spring examines writers and their way of life. Released in 1926, the same year as The Sun Also Rises, the entertaining story of Yogi Johnson and Scripps O'Neill is often overlooked in favour of the Nobel Prize winner's later works. HarperPerennial Classics brings great works of literature to life in digital format, upholding the highest standards in ebook production and celebrating reading in all its forms. Look for more titles in the HarperPerennial Classics collection to build your digital library.
On the last day of his life Colonel Richard Cantwell sits in a duck blind in Trieste, reflecting on his life as a soldier and reminiscing about his tryst with a young Venetian woman named Renata. Across the River and into the Trees is the moving account of one man’s thoughts as he nears the end of his life, pondering a love that is stronger than reason and the beauty of Venice. Originally serialized in Cosmopolitan magazine from February to June 1950, Across the River and into the Trees takes its title from the last words uttered by Confederate General Thomas J. (Stonewall) Jackson. Panned by critics on its publication, it is now recognized as an important part of the Hemingway canon for its depiction of how man deals with death. HarperPerennial Classics brings great works of literature to life in digital format, upholding the highest standards in ebook production and celebrating reading in all its forms. Look for more titles in the HarperPerennial Classics collection to build your digital library.
[This edition is in Chinese.] The best American novel to emerge from World War I, A Farewell to Arms is the unforgettable story of an American ambulance driver on the Italian front and his passion for a beautiful English nurse. Hemingway’s frank portrayal of the love between Lieutenant Henry and Catherine Barkley, caught in the inexorable sweep of war, glows with an intensity unrivaled in modern literature, while his description of the German attack on Caporetto—of lines of fired men marching in the rain, hungry, weary, and demoralized—is one of the greatest moments in literary history. A story of love and pain, of loyalty and desertion, A Farewell to Arms,written when he was thirty years old, represents a new romanticism for Hemingway.
Ernest Hemingway’s classic novel of love during wartime. Written when Ernest Hemingway was thirty years old and lauded as the best American novel to emerge from World War I, A Farewell to Arms is the unforgettable story of an American ambulance driver on the Italian front and his passion for a beautiful English nurse. Set against the looming horrors of the battlefield, this gripping, semiautobiographical work captures the harsh realities of war and the pain of lovers caught in its inexorable sweep. Hemingway famously rewrote the ending to A Farewell to Arms thirty-nine times to get the words right. A classic novel of love during wartime, “A Farewell to Arms stands, more than eighty years after its first appearance, as a towering ornament of American literature” (The Washington Times).
Hemingway's evocation of the pride and the tragedy of the civil war that tore Spain apart. A young American volunteer is sent to handle the dynamiting of a bridge behind the lines of Franco's army. In the mountains he find the dangers and the intense comradeship of war - and he discovers Maria.
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