Unique training method with proven results for novice, recreational, competitive, elite and world class runners.

From the writer of the classic Letters to a Young Poet, reflections on grief and loss, collected and published here in one volume for the first time. “A great poet’s reflections on our greatest mystery.”—Billy Collins “A treasure . . . The solace Rilke offers is uncommon, uplifting and necessary.”—The Guardian Gleaned from Rainer Maria Rilke’s voluminous, never-before-translated letters to bereaved friends and acquaintances, The Dark Interval is a profound vision of the mourning process and a meditation on death’s place in our lives. Following the format of Letters to a Young Poet, this book arranges Rilke’s letters into an uninterrupted sequence, showcasing the full range of the great author’s thoughts on death and dying, as well as his sensitive and moving expressions of consolation and condolence. Presented with care and authority by master translator Ulrich Baer, The Dark Interval is a literary treasure, an indispensable resource for anyone searching for solace, comfort, and meaning in a time of grief. Praise for The Dark Interval “Even though each of these letters of condolence is personalized with intimate detail, together they hammer home Rilke’s remarkable truth about the death of another: that the pain of it can force us into a ‘deeper . . . level of life’ and render us more ‘vibrant.’ Here we have a great poet’s reflections on our greatest mystery.”—Billy Collins “As we live our lives, it is possible to feel not sadness or melancholy but a rush of power as the life of others passes into us. This rhapsodic volume teaches us that death is not a negation but a deepening experience in the onslaught of existence. What a wise and victorious book!”—Henri Cole

In this book the new notion of interval semirings are introduced. New structures like interval groups are used to construct interval group semirings. Further non-associative interval semirings are constructed using loops and groupoids. We have given 284 examples, 118 problems are proposed ¿ some of them at the research level.The main keywords are interval semirings, interval groups, interval matrix semirings, interval groupoid semirings, neutrosophic interval semirings, and loop interval semirings.

This book defines new classes of groupoids, like matrix groupoid, polynomial groupoid, interval groupoid, and polynomial groupoid.An interesting feature of this book is that introduces 77 new definitions substantiated and described by 426 examples and 150 theorems.

In Interval Weight LossDr Fuller explained we all have a set weight at which our bodies feel most comfortable, and those who go on fad diets often end up regaining the kilos they've lost - hence the expression 'battle of the bulge'. In this companion book Dr Fuller takes you, stage by stage, through the process of convincing your body it's at a new optimal weight so that you become slimmer and stay that way. And he answers all the questions readers have asked him, such as- 'How should I kick-start the process?' 'What should I do if I find my weight plateauing?' 'Do I need to avoid certain foods?' 'What should I do now that I'm at my goal weight?' Filled with new nutritious recipes, and helpful, no-nonsenseadvice, Interval Weight Lossfor Life provides you with the essential information that has enabled thousands of people to lose weight and keep it off. So, if you're feeling battle-weary and are about to give up, then put down the latest celebrity diet you're reading and arm yourself with this book. The battle of the bulge is almost over.

Issues for 1906-17 include reports on plague investigation in India, 6th-10th reports; and Plague supplements, no. 1-5; and Parasitology v.1-5.