eBooks de Ciencias, página 14 de 1743

Las plantas nos pueden enseñar mucho acerca del «arduo arte de vivir bien».La admiración por la naturaleza parece acentuarse a medida que aumenta la población mundial y crecen las ciudades. Cuanto má

Y si un mundo mejor fuera posible… y estuviera más cerca de lo que creemos?En una época marcada por la división, la desconexión y la crisis medioambiental, este libro nos lleva a descubrir, de la man

Leyendo a Euclides fue escrito en 1947 con el objetivo de atraer la atención de lectores no matemáticos hacia el estudio de conceptos fundamentales de la geometría y la filosofía. Tras analizar el pensamiento socratico y deducir interesantes conclusiones de tipo filosofico, Levi introduce al lector en el analisis exhaustivo de los inmortales Elementos. La presente edicion incluye el ensayo biografico "Beppo Levi, Italia y Argentina en la vida de un matematico", de Laura Levi, hija de Beppo."La logica de la geometria de Euclides, en particular su sistematicidad y coherencia, sigue suscitando admiracion. No debiera extrañar entonces que un matematico moderno como Beppo Levi le haya dedicado un estudio profundo, aunque sin la pesada carga erudita habitual. Ni es de extrañar que, a su vez, este libro del matematico italoargentino despierte la curiosidad de lectores contemporaneos. ¿Que resulto del encuentro de Euclides con Levi a la vuelta de veintidos siglos? Lo averiguaran quienes lean este libro tan original como claro. Aprenderan a ver a Euclides, e incluso a su posible maestro, Platon, con ojos modernos. Y aprenderan, si no lo saben ya, los deleites de la conversacion con muertos sin recurrir a trucos espiritistas". Del prologo de Mario Bunge

Este libro surge de una serie de talleres y seminarios organizados por la Universidad Panamericana como parte de la Cátedra Interamericana Laudato si. A partir de la encíclica del papa Francisco, el texto aborda la crisis socioambiental como una manifestacion de una crisis mas profunda: la perdida de la dimension sagrada del mundo y la desconexion del ser humano con Dios, la naturaleza y el projimo.Dividida en tres apartados, en el primero se establece un marco teologico y filosofico sobre la crisis ecologica, analizando la critica del Papa a la modernidad y proponiendo una etica renovada. Luego, explora la "cultura del descarte" desde distintas perspectivas, incluyendo la discapacidad, la discriminacion de genero y la exclusion de los ancianos, ademas de plantear una economia mas humana y sostenible. En el tercer apartado se hace un llamado a la esperanza, rescatando enseñanzas de los pueblos originarios, reflexionando sobre la vida urbana sostenible y promoviendo una vision de la humanidad como cocreadora de un futuro mejor.A traves de diversas voces academicas y estudiantiles, este libro busca propiciar un cambio de paradigma y fomentar un compromiso real con la ecologia integral, respondiendo al llamado del papa Francisco a cuidar nuestra casa comun con una educacion transformadora.

En "El mito de la vejez", Francisco Mora desmonta los extendidos prejuicios sobre el envejecimiento y nos invita a descubrir el verdadero potencial de la madurez. Con rigor científico y un enfoque profundamente humano, Mora revela que nuestra edad no esta dictada solo por el calendario, sino sobre todo por nuestras decisiones, habitos y entorno.A traves de los ultimos hallazgos en neurociencia y epigenetica, este libro demuestra que el cerebro puede seguir desarrollandose y adaptandose, que los genes pueden reescribirse y que la calidad de vida depende, en gran parte, de nosotros mismos. Mora expone como factores como la alimentacion, el ejercicio, la estimulacion mental y las interacciones sociales pueden modificar nuestra trayectoria biologica, convirtiendo el envejecimiento en un proceso dinamico y personalizado y no en un destino fatidico.Este libro nos invita a abandonar el miedo y los estereotipos sobre la vejez, presentandola como una etapa de potencial crecimiento en la que cada individuo puede gestionar activamente su vitalidad y calidad de vida, prolongando no solo los años vividos sino fundamentalmente su significado y sus posibilidades. Una obra esperanzadora que combate el edadismo y nos invita a reimaginar el potencial humano mas alla de cualquier limite temporal.

¿Que sintieron los grandes cientificos de la historia en el momento en que alcanzaron sus grandes descubrimientos? ¿Como llegaron al instante magico en el que sus predicciones se hicieron realidad? Este increible viaje de la prediccion a la prueba nos transporta desde laboratorios ubicados en Paris y Cambridge hasta el frente ruso devastado por la guerra, pasando por bunkeres construidos bajo reactores nucleares y enormes tuneles subterraneos en la frontera suizo-francesa. Desde el electromagnetismo hasta las ondas gravitacionales de Einstein y el escurridizo neutrino de Wolfgang Pauli, el aclamado escritor y cientifico Marcus Chown nos acompana en un recorrido impresionante por los avances de la fisica moderna, deteniendose en ese instante magico en el que las matematicas y la fisica, de la mano de sus mas brillantes representantes, cambiaron para siempre la historia de la ciencia.

Cerrad los ojos. Imaginad un espacio sin límites. Imaginad los movimientos de una partida de ajedrez perfecta. Imaginad que el número 4 pudiera decirse de muchas maneras diferentes. Imaginad los acontecimientos infinitesimales que pueden conducir a que estalle la revolucion en un pais. Imaginad una tribu que, por no saber contar, no planea nada que se prolongue mas de un dia. Imaginad a Shakespeare descubriendo el numero cero y las dimensiones de una ausencia. Imaginad que pudierais leer un libro de una infinidad de maneras distintas.Me llamo Daniel Tammet, y soy sinestesico: percibo los numeros con colores y siluetas. En mi cabeza, contar es como pasear por un bosque. Tengo diagnosticado, ademas, el sindrome del sabio: puedo aprender un idioma en una semana, y recitar decimales del numero pi durante cinco horas (por eso me dieron un Guinness). De pequeño resolvi que, si conseguia reunir suficientes recuerdos y someterlos a un patron estadistico, podria predecir el comportamiento de mi madre. Los numeros primos poseen para mi la belleza de la poesia. No entendi lo que me sucedia hasta que conoci a Rain Man (al de verdad). Cada mañana me siento en mi escritorio y me pregunto: ¿y si...?

Un viaje esperanzador por la capacidad de la naturaleza para adaptarse que nos enseña a enfrentar los desafíos actuales. Durante casi cuatro mil millones de años, la vida en la Tierra ha encontrado nuevas formas de adaptarse, reproducirse y prosperar, transformandose para responder a las condiciones de cada epoca. Pero el impacto humano sobre el planeta y la amenaza potencialmente devastadora del cambio climatico han puesto a prueba esa capacidad de adaptacion como nunca antes. Aun asi, la vida siempre encuentra un camino. Animales, plantas e insectos siguen afrontando el desafio y continuan adaptandose, reproduciendose y prosperando incluso en un entorno en rapida transformacion. En su ejemplo quiza encontremos tambien nosotros las claves para cambiar, para detener la destruccion que estamos causando al planeta.En El ingenio de la naturaleza, David Farrier nos invita a un viaje profundo por este mundo natural en constante cambio. Lo que descubrimos en el podria transformarnos. Las formas en que los animales se ajustan al paisaje urbano pueden ayudarnos a diseñar ciudades sostenibles. El estudio de otras inteligencias puede inspirarnos a reinventar nuestras economias. La evolucion bacteriana puede ofrecer soluciones al problema de los residuos. La biologia sintetica podria rescatar especies al borde de la extincion. Y pensar en las escalas de tiempo de la naturaleza puede guiarnos hacia un futuro mejor.La vida en la Tierra esta cambiando; la pregunta es si nosotros seremos capaces de cambiar con ella. ¿Podremos reconstruir el mundo para que toda forma de vida vuelva a prosperar?

Facing a pets terminal illness is one of the most emotionally challenging journeys a guardian can experience . This heartfelt guide offers gentle support and practical wisdom to help you navigate anticipatory grief, make compassionate decisions, and prepare emotionally for the farewell with love and dignity .Through empathetic guidance, the book helps you understand the stages of grief before loss, cope with fear and uncertainty, and create meaningful moments with your pet during their final chapter . It addresses difficult conversations with veterinarians, quality-of-life considerations, and how to honor your pets comfort while honoring your own emotional limits .Readers will also learn how to build rituals of connection, say goodbye in ways that feel true, and process the complex emotions that arise when love and loss coexist . With calming reassurance and clear strategies, this guide supports you in finding peace, presence, and strength during an incredibly tender time.More than preparation, this book is about compassiontoward your pet and yourself . It reminds you that choosing love, comfort, and respect at the end is a powerful act of care, and that healing can begin even before the farewell .

Saying goodbye to a beloved pet is one of the most emotional moments of a lifetimeand honoring that farewell can bring comfort, meaning, and healing.This tender and deeply comforting book guides readers through the emotional journey of honoring a pets life while finding peace in the act of saying goodbye. With sensitivity and compassion, it explores meaningful ways to celebrate love, preserve memories, and transform grief into a heartfelt tribute. Through gentle reflections and emotional insight, the narrative shows that farewell is not an ending, but a transitionfrom physical presence to lasting remembrance. It encourages creating rituals, embracing memories, and acknowledging the depth of the bond shared, allowing the heart to grieve while still feeling connected. By honoring a pets legacy with intention and love, this journey helps ease the pain of loss and opens space for healing. It reminds readers that saying goodbye does not erase the bondit honors it, preserves it, and carries it forward. This book offers solace to anyone facing the hardest goodbye, showing that love remains long after the final moment, and that remembrance can be a powerful act of healing. Because every goodbye, when filled with love, becomes a lasting tribute to a life that will never be forgotten.

Sometimes the words we never said are the ones that hurt the most.This emotionally healing narrative explores the power of writing a letter to a beloved pet as a therapeutic path through grief, love, and remembrance. Through heartfelt words, memories resurface, emotions find release, and pain slowly transforms into acceptance. The story reveals how putting feelings into words can help process loss, ease guilt, and preserve the unbreakable bond shared with a pet who was more than an animala true family member. Each reflection becomes a step toward emotional clarity, allowing grief to be expressed instead of suppressed.Gentle, comforting, and deeply human, this book shows how a simple letter can become a powerful emotional therapyhelping readers honor their pets legacy, heal the heart, and rediscover peace without forgetting the love that will always remain.

Losing a pet can be as heartbreaking as losing a family member and knowing how to offer the right kind of support can make all the difference. This compassionate guide helps friends and family understand pet loss grief and shows how to be truly present during one of the most vulnerable moments in a persons life .With empathy and clarity, the book explains what grieving pet owners are really feeling, what to say (and what not to say), and how small gestures of kindness can provide immense comfort . It gently addresses common mistakes, awkward silences, and well-meaning comments that may unintentionally cause pain, offering practical alternatives rooted in emotional intelligence and care.Readers will discover how to support without minimizing the loss, how to respect different grieving styles, and how to create a safe space for healingwhether the loss is recent or long past . This guide also explores how to help children, partners, and close friends cope with pet loss in healthy and compassionate ways.More than just advice, this book is a reminder that love for a pet is real, grief is valid, and supportwhen offered with understandingcan be profoundly healing . It equips you to show up with kindness, patience, and confidence when it matters most.

Losing a beloved pet can shatter a heartbut it can also bring a family closer than ever. This deeply emotional and inspiring story explores how the loss of a cherished pet became a powerful turning point for healing, connection, and growth within a family. Through moments of grief, reflection, and shared memories, the narrative reveals how pain transformed into empathy, understanding, and stronger emotional bonds. With honesty and warmth, this book shows how facing loss together can open conversations long left unspoken, strengthen family relationships, and teach resilience in the most unexpected ways. It is a moving reminder that love does not end with goodbyeand that even in sorrow, there is space for unity, compassion, and hope. Perfect for readers seeking comfort, emotional depth, and meaningful life lessons, this story proves that the loss of a pet can leave behind more than sadnessit can leave a legacy of togetherness and emotional strength.

Losing a beloved pet is a deeply emotional experience and dealing with insensitive comments afterward can make the pain even harder to bear. This book offers compassionate guidance for navigating grief while responding to hurtful, awkward, or dismissive remarks with confidence, clarity, and self-respect .Through empathetic insights and practical strategies, readers will learn how to protect their emotional well-being, set healthy boundaries, and find the right wordsor silencewhen faced with comments that minimize their loss. Whether the remarks come from friends, family, coworkers, or strangers, this guide empowers you to respond without guilt, anger, or regret .Blending emotional healing with real-life communication tools, this book helps transform moments of discomfort into opportunities for self-care and inner strength . It validates your grief, honors the bond you shared with your pet, and reminds you that your feelings are real, important, and worthy of respect .If youre searching for understanding, comfort, and practical advice during one of lifes most tender moments, this book will walk beside youhelping you heal, speak up when needed, and find peace after loss .

Watching someone you love grieve the loss of a pet can be heartbreakingand knowing what to say or do isnt always easy. This compassionate guide shows how to truly support others during one of the most misunderstood forms of grief.With empathy, emotional intelligence, and practical strategies, this book teaches how to offer comfort without minimizing pain, how to listen without judgment, and how to respect the deep bond between humans and their animal companions. Youll learn how to avoid common mistakes, choose words that heal instead of hurt, and provide presence when silence speaks louder than advice.Whether helping a friend, family member, client, or community member, this resource reveals how to validate emotions, honor memories, and guide others toward healthy healingwithout rushing their process. It explores grief, compassion, boundaries, and emotional support in a way that feels human, gentle, and deeply meaningful.More than sympathy, this book offers understanding. More than comfort, it offers connection. And more than guidance, it offers a way to stand beside someone in pain and help them find light again.

After the devastating loss of a beloved pet , grief can leave life feeling empty and directionless. This deeply moving and inspirational story reveals how profound pain became the starting point for healing, purpose, and transformationboth for one heart in mourning and for the lives that followed .Through honest reflection and emotional resilience, the narrative explores how love does not end with loss, but can be redirected into acts of compassion. By opening the heart again and choosing to adopt, care for, and protect animals in need, grief slowly transforms into hope, connection, and renewed meaning .This book takes readers on an intimate journey through sorrow, guilt, healing, and rediscovery, showing how adoption can be a powerful response to lossnot as a replacement, but as a continuation of love . It highlights the emotional challenges, the unexpected joys, and the quiet moments where brokenness turns into strength.More than a personal story, this is a testament to the healing power of kindness and second chances . It reminds us that even after heartbreak, love can grow againchanging not only the lives we save, but our own forever .

Opening your heart again after loss is one of the hardestand most meaningfuldecisions a pet lover can face. After saying goodbye to a beloved companion, the question of adoption often comes with doubt, guilt, hope, and fear all at once. This heartfelt and thoughtful book explores the emotional journey of understanding grief, honoring memories, and recognizing the signs that you may be ready to welcome a new pet into your life. Through honest reflections and compassionate insights, the story helps readers navigate the delicate balance between mourning what was lost and making space for new love. It shows how adopting after loss is not about replacing a pet, but about continuing a bond rooted in care, healing, and emotional growth. With warmth and sensitivity, this narrative reassures readers that readiness looks different for everyoneand that choosing adoption at the right moment can be a powerful step toward renewal, purpose, and joy.

Some bonds never fadethey transform into memories that heal.Losing a beloved pet is losing a piece of your heart. The silence they leave behind can feel overwhelming, but within that pain lives a powerful truth: love never disappearsit evolves. This deeply emotional and comforting book explores how preserving your pets memory can become a gentle path toward healing, peace, and gratitude. Through heartfelt reflections, meaningful insights, and compassionate guidance, this work shows how memories can soothe grief, honor unconditional love, and keep your pets spirit alive in everyday moments. It invites you to transform sorrow into remembrance, pain into connection, and loss into a lasting tribute of love. From small rituals and symbolic gestures to emotional understanding and inner growth, this journey reminds you that remembering is not about holding on to sadnessits about celebrating a life that changed yours forever. If youve ever loved an animal deeply, this book will resonate with your soul. It offers comfort during moments of longing, strength during grief, and hope when healing feels distantproving that memories dont just remind us of what we lost, but of how deeply we loved. Because some memories dont fade with timethey heal, protect, and stay with us forever.

When one pet is gone, the whole home feels the changeincluding the animals who remain.This compassionate and insightful book explores how pets experience loss and how their grief can quietly unfold through behavior, mood, and routine changes. With warmth and understanding, it reveals how animals form deep emotional bondsand how the absence of a companion can affect their sense of safety and balance. Through gentle guidance and emotional awareness, this journey helps caregivers recognize signs of grief in pets and respond with patience, comfort, and love. It highlights the importance of routine, emotional reassurance, and subtle support that can help remaining pets feel secure during a confusing and painful transition. More than practical care, this book emphasizes emotional connectionshowing how presence, empathy, and consistency can help pets heal at their own pace. It reminds readers that animals grieve differently, but never without feeling. By nurturing the hearts that stay behind, this book offers a path toward restoring harmony in the home, honoring the bond that was lost, and strengthening the bonds that remain. Because healing after loss isnt only for humansand helping your pets cope is another powerful way to honor the love you all shared.

When a pet is gone without warning, the silence they leave behind can feel overwhelming.This deeply compassionate and insightful book explores the emotional shock of losing a pet suddenly and the intense grief that follows. Through honest reflections and gentle guidance, it helps readers understand their pain, validate their emotions, and find healthy ways to cope with loss that feels unfair and unfinished. With warmth and sensitivity, the narrative addresses feelings of guilt, anger, confusion, and heartbreakshowing that these reactions are natural and shared by many. It offers comfort through emotional awareness, remembrance, and the slow rebuilding of inner strength after an unexpected goodbye. More than a story of loss, this book is a reminder that healing is possible even after sudden heartbreak. It encourages readers to honor their pets life, cherish the love that remains, and move forward at their own paceone gentle step at a time.