Category Digital Library Archives
Understanding Estrogen Receptor/SERMs
Reading Time: 10 minutesEstrogen is often called the body’s “architect of balance.” From the first stirrings of puberty to the steady rhythm of adulthood, this hormone quietly shapes bones, skin, heart, and brain. It is produced mainly by the ovaries, but also by the adrenal glands and, later in life, by fat tissue that keeps a gentle baseline […]
Lipid Metabolism Explained: From Fat Breakdown to Energy and Storage
Reading Time: 3 minutes5-3-4. Lipid Metabolism Learning Objectives Explain how energy can be derived from fat Explain the purpose and process of ketogenesis Describe the process of ketone body oxidation Explain the purpose and the process of lipogenesis Fats (or triglycerides) within the body are ingested as food or synthesized by adipocytes or hepatocytes from carbohydrate precursors (Figure […]
FlatWorld Textbooks: Open Learning for a Modern World
Reading Time: 2 minutesThe rise of digital learning has changed how students and educators access knowledge. Among the early pioneers in open and affordable academic publishing was FlatWorld Knowledge — a company dedicated to making high-quality textbooks freely available online. Their works continue to serve learners around the globe, combining academic rigor with accessibility. FlatWorld Textbooks These titles […]
Louis XIV, the Fronde, and the Government of Cardinal Mazarin (1643–1661)
Reading Time: 16 minutesThe early reign of Louis XIV was marked by intrigue, power struggles, and the remarkable political influence of Cardinal Mazarin. Following the death of Louis XIII, France entered a period of regency under Queen Anne of Austria. The queen’s decision to retain Mazarin as her chief minister shaped the nation’s political landscape for nearly two […]
Protein Folding and Function
Reading Time: < 1 minuteAs the amino acid chain grows, it folds into a three-dimensional (3-D) structure, which depends on both the chemical nature and order of the different amino acids. The 3-D structure determines the function of the protein. When there is a change in one or more amino acids, then the ability of the protein to function […]
JOHN ERICSSON (1803–1889)
Reading Time: 5 minutesBy Martha J. Lamb John Ericsson. In a message, referring to the relations of our country with the several nations of Europe, President Harrison said: “The restoration of the remains of John Ericsson to Sweden afforded a gratifying occasion to honor the memory of the great inventor, to whose genius our country owes so much, […]