Topics: scientific thoughts, science, technology, inventions, technological development, Origin of man, nature of man, Energy, Electricity, household appliances, space science, space exploration, stress, public health, AIDs, nutrition, health

Topics: Halogen, Alkyl, Chloromethane, alkyl halide

Topics: reaction, bonding, ionic bond, covalent bond, sigma bond, pi bond, isomerism, chain isomerism, position isomerism, functional group isomerism, stereoisomerism, geometrical isomerism

Topics: Financial statement analysis, Income statement, Income Statement Components, revenue, gross profit, Operating Expenses, operating income, profits, Cash Flow Statement, balance sheet, assets, liabilities, ratio analysis

Topics: statics, force, pulley, dynamics, projectile, simple harmonic motion

Topics: Shahada, Salat, Zakat, Sawn, Hajj, pillars of Islam

Topics: African history, West African History sources, oral tradition, Archaeology, linguistics

Topics: Spread of Islam in West Africa, Islam in West Africa, Islamic revolutions, Almoravid Conquest, Sokoto caliphate

Topics: sterilization, Disinfection, Sanitization, Antisepsis, Chemotherapy, microbial death, autoclaving, Pasteurization, Tyndallization, Dry heat, filtration, Depth filters, microorganisms control, Membrane filters, Laminar flow biological safety cabinets, Ultraviolet radiation, radiation, Ionizing radiation, phenolics, alcohols, halogens, Quaternary ammonium compounds, Aldehydes, sterilizing gases, Ethylene oxide, Betapropiolactone, Vaporized hydrogen peroxide

Topics: Surgical Patient, Hemostasis, Surgical Bleeding, Transfusion, Surgical Infections, shock, trauma, burns, wound healing, oncology, transplantation, Minimally Invasive Surgery, Natural Orifice Transluminal Endoscopic Surgery, Single-Incision Laparoscopic Surgery, Molecular Biology, Precision Surgery, Subcutaneous Tissue, skin, breast, head, neck, chest wall, lung, mediatinum, pleura, Congenital Heart Disease, Heart Disease, Acquired Heart Disease, Thoracic Aneurysms, Aortic Dissection, Arterial Disease, Venous disease, Lymphatic Disease, Esophagus, Diaphragmatic Hernia, stomach, Small Intestine, obesity, colon, rectum, anus, appendix, liver, gallbladder, Extrahepatic Biliary System, pancreas, spleen, Abdominal Wall, Omentum, Mesentery, Retroperitoneum, Soft Tissue Sarcoma, Inguinal Hernia, Thyroid, Parathyroid, Adrenal, Pediatric Surgery, Gynecology, urology, Neurosurgery, Orthopedic Surgery, . Plastic surgery, Reconstructive Surgery, Anesthesia.Ethics, Palliative Care, global surgery, Perioperative Care, Enhanced Recovery, Chinese Medicine, Surgical Practice, Ambulatory Surgery, stimulation