Novedades del último mes en eBooks de Química

A química brasileira atual desperta grande interesse por suas origens. A maioria dos relatos prende-se ao século XX, havendo pouca publicação sobre períodos anteriores. Na colônia praticavam-se técni

Triste? Apaixonado? Entediado? A Química explica-lhe o porquê. Acredita que é um ser racional? Que as suas decisões são fruto de uma lógica apurada e de uma vontade soberana? A verdade é muito mais

A ciência, em sua mais nobre vocação, é um ato de serviço. Na Engenharia de Alimentos, essa verdade se manifesta com especial clareza: o saber técnico-laboratorial se torna a ponte entre o invisível

When we bite into a potato chip, we believe we are evaluating its quality based on taste and texture. However, the food industry knows that the most critical metric for perceived freshness is hidden in the auditory cortex. The sensation of crunchiness is not just a physical force; it is a meticulously engineered acoustic event designed to trigger a primal neurological reward.Food scientists utilize specialized microphones and pressure sensors to calibrate the exact decibel level and frequency pitch of a breaking chip. If the snap is too quiet or the frequency too low, the brain immediately registers the food as stale and unappetizing, regardless of its actual chemical composition. By optimizing the sonic amplitude of our food, corporations hijack our evolutionary association between loud, crisp sounds and nutrient-dense, fresh vegetables."Acoustic Appetites" uncovers the bizarre intersection of psychoacoustics and culinary chemistry. It reveals how multi-national snack conglomerates manipulate the physics of sound to maximize cravings, bypass our satiety mechanisms, and enforce habitual consumption.Listen closely to the hidden engineering on your plate. Recognize the auditory manipulation governing your dietary choices, and reclaim your autonomy from the highly calculated sonic architecture of modern junk food.

Take a look in your refrigerator, your bathroom cabinet, and your medicine pouch. From the smooth texture of your ice cream and the foam on your beer to your toothpaste and the petri dishes used in critical medical research, one invisible ingredient holds it all together: seaweed extracts. Agar, carrageenan, and alginate are the unsung heroes of global manufacturing, forming a multi-billion-dollar industry harvested entirely from the ocean.This fascinating exploration dives into the complex supply chains and food chemistry of hydrocolloids. You will discover how a simple red algae cultivated by impoverished farmers in Southeast Asia is processed into high-tech gels that stabilize the entire modern food and pharmaceutical system. The book uncovers the historical accidents that led to seaweeds industrial dominance and the fierce corporate battles over extraction patents.Learn how this hidden oceanic commodity dictates the texture of our daily lives. As climate change threatens fragile coastal ecosystems, understanding the economics of seaweed is crucial to securing the invisible glue that keeps our modern world from literally falling apart.

Edição revista e atualizada de Introdução a métodos cromatográficos, este livro apresenta princípios básicos de cromatografia, descreve as diferentes técnicas cromatográficas e reúne sugestões para e