Dimitrie Cantemir Istanbul The Book of Science of Music

Underappreciated in his own time, Johann Sebastian Bach has ascended to Olympian heights in the estimation of generations of music lovers. But what is it about his music that makes it great? Composer and musicologist Robert Greenberg helps you hear the extraordinary sweep of Bach's music and understand his compositional language—whether you're a devoted admirer or a casual listener.

Dr. Gehan El Zokm is a professor at the Marine Chemistry Department and leader of the halogen, sulfide modeling, and surfactant groups at the National Institute of Oceanography and Fisheries, Mediterranean Sea Branch in Egypt. She earned her B.Sc., M.Sc., and Ph.D. in the Chemistry Department at the Faculty of Science of Alexandria University in Alexandria, both of which concerned heavy metal chemistry (focusing on preconcentration and fractionation tools). She is a specialist in environmental chemistry in the Marine Environment Division. Her research interests are in analytical and instrumental analytical chemistry with an emphasis on fractionation techniques (metals, sulfur, phosphorus, and nitrogen) regarding their bioavailability. Sulfide-metal dynamic models’ topic has been a great concern in her publications. Statistical analyses were the most prominent features of her research, which was conducted using the most recent software packages. Her papers discuss the topics of eutrophication and pollution as well as the responses of marine biota to these two phenomena. Her study focuses on the mobility and fluxes of various parameters within marine environmental compartments. Her recent projects include natural product extraction for a variety of applications as well as method characterization (FTIR, XRD, SEM, TEM, EDEX, GC, HPLC, UV-Vis, and BET). Nutritional and functional food studies are highlighted in her research. Her research is also focused on water treatment and the mobility as well as fluxes of pollutants (heavy metals, phenol, hydrocarbons, and pesticides). She has 50 research papers and two books with an H-index of 17. A factorial design is applied for water treatment experiments. She reviews a lot of papers for many important publishers (Elsevier, Springer, and Taylor & Francis). She supervised and headed several projects and postgraduate students, participated in many conferences and workshops, and has several activities.

Enter the mysterious world of sixteenth-century science, where astronomers and alchemists shared laboratories.

An illuminating look at the adaptive nature of our memories—and how their flexibility and fallibility help us survive and thrive