Topics: Environmental health, environmental disease, environment, health, lung diseases, asthma, bronchitis, silicosis, cancer, Gulf war syndrome, birth defects, chemical poisoning, neglected tropical diseases, trachoma, Guinea worm disease, schistosomiasis, soil transmitted helminth infections, ascariasis, whipworms, lymphatic filariasis, sick building syndrome, global warming, ozone layer depletion, land degradation, pollution, pollutants, pollution control, toxicity, natural resources, urbanization, water supply sanitation, water quality, solid waste, air quality

Topics: domestic animals, cell, embryology, energy production, tissues, body cavities, body water, water balance, dehydration, blood, leukocytes, erythrocytes, iron metabolism, anemia, polycythemia, hemostasis, blood coagulation, plasma, nervous system, nerve impulse, reflexes, meninges, nervous system, cerebrospinal fluid, central nervous system metabolism, sensory organs, Sensory Receptors, Sensory Receptor Responses, pain, taste, smell, hearing, vision, endocrine system, hormones, pituitary gland, thyroid gland, parathyroid gland, adrenal glands, pancreatic gland, prostaglandins, bones, joints, synovial fluid, bone structure, bone formation, bone repair, Skeletal-Muscle Harnessing, muscle, Skeletal-Muscle Contraction, cardiovascular system, heart, pericardium, blood vessels, lymphatic system, spleen, cardiac contractility, electrocardiogram, heart sounds, heart rate, blood pressure, blood flow, capillary dynamics, respiratory system, respiratory apparatus, pulmonary ventilation, oxygen transport, carbon dioxide transport, respiratory clearance, Avian respiration, urinary system, Glomerular Filtration, Nephron, Extracellular Fluid Volume Regulation, aldosterone, micturition, Renal Clearance, Avian Urinary System, Acid–Base Balance maintenance, digestion, absorption, oral cavity, pharynx, intestines, accessory organs, Gastrointestinal Motility, Ruminant Stomach, Ruminant Metabolism, Ruminant Digestion, body temperature, body heat, hibernation, Hypothermia, Hyperthermia, male reproduction, penis, Spermatogenesis, erection, female reproduction, Ovarian Follicle Activity, Sexual Receptivity, Estrous Cycle, pregnancy, parturition, lactation, Mammogenesis, Lactogenesis, Milk Removal, milk composition

Topics: Irrigation, Drainage, Soil-water-plant-atmosphere relationship, Irrigation requirement, Consumptive water use, evapotranspiration, Irrigation scheduling, Irrigation resources, irrigation equipment maintenance, Irrigation systems, Irrigation techniques, soil reaction, soil erosion, soil drainage, Soil salinity, soil alkalinity, soil acidity

Topics: Agricultural Biochemistry, cell, cell structure, plasma membrane, cytoplasm, water solutions, carbohydrates, fatty acids, lipids, amino acids, proteins, enzymes, purines, pyrimidines, nucleic acids, vitamins, minerals, metabolism, glycolysis, tricarboxylic acid cycle, electron transport, oxidative phosphorylation, Fatty acid oxidation, lipid breakdown, pentose phosphate pathway, Fermentation pathways, photosynthesis, Gluconeogenesis, carbohydrate synthesis, amino acid synthesis, seeds, germination, reproductive growth, Plant nutrition, auxins, gibberellins, Cytokinins, Abscisic acid, Ethylene, Miscellaneous plant growth regulators, lactation, muscle, meat, cell walls, ribosomes, endoplasmic reticulum, mitochondria, water ionization, sugars, glucose, fructose, Polysaccharides, Triacylglycerols, acylglycerols, Glycerophospholipids, Glycosylglycerides, Sphingolipids, phenolics, peptide bonds, protein function, protein structure, Allosteric enzymes

Topics: Soil Management, Soil Erosion, water erosion, Soil Erodibility, water erosion effects, wind erosion, organic soils, soil organic carbon Sequestration, Regosol, problem soils, polluted soils, sandy soil, shallow soil, skeletal soil, Polluted Soil reclamation, Polluted Soils management, Polluted Soils bioremediation, soil nutrient dynamics, wetland soils, sheet erosion, rill erosion, gully erosion, stream banl erosion

Topics: Natural Environment, Animal Production, earth science, environment, geological activity, oceans, rivers, streams, lakes, ponds, climate change, atmosphere, atmospheric layers, global warming, climate, weather, life ecosystems, biomes, biogeochemical cycles, wilderness, Environmental degradation, population growth, agriculture, water management, greenhouse gas emission, Gas effect, emissions, pollution, air pollution, water pollution, land pollution, erosion, coastal erosion, glaciers, floods, freezing, thawing, wind erosion, gravitational erosion, exfoliation, soil structure, soil composition, vegetation cover, topography, agricultural practices, deforestation, urbanization, airborne dust pollution, desertification, Stratospheric Ozone, ozone hole, Antarctica Ozone Theory

Topics: soil properties, soil management, tropical environment, temperature, solar radiation, rainfall, tropical climates, vegetation, physiography, Anthropocene, biodiversity, climate change, demographics, Green Revolutions, Tropical Agroecosystems, land use, land-use change, Pedology, Physics, Chemistry, Biology, Laterite Paradigm, tropical soils, tropical soil research, Soil Taxonomy, soil classification systems, soil physical properties, soil temperature, soil structure, soil compaction, soil water, soil erosion, conservation, conservation agriculture, water, rainfed agriculture, irrigated agriculture, irrigation, mineralogy, clay minerals, mineralogy families, Anion Exchange Capacity, soil acidity capacity, Acid Soil Infertility, Liming, overliming, subsoil acidity, secondary acidity, soil biology, soil biodiversity, comminution, decomposition, nutrient elements transformation, soil structure regulation, organic carbon, carbon pools, carbon fractions, animal manures, composts, biochars, organic farming, soil fertility, nutrient cycling, nutrient uptake, determining fertilizer needs, nitrogen cycle, nitrogen pools, atmospheric deposition, biological nitrogen fixation, mineral fertilizers, organic nitrogen mineralization, soil nitrogen fertilizer reactions, Phosphorus Cycle, Phosphorus, Total Soil Phosphorus, inorganic Phosphorus, Phosphorus sorption, Phosphorus release, plant Phosphorus requirements, Phosphorus fertilization, sulfur cycle, sulfur sorption, Sulphur fertilization, Forest–Soil Nutrient Cycles, land clearing, Mechanized Land Clearing, Crop Yield Declines, Field Abandonment, Secondary Forest Fallows, puddling, flooding, rice cultivation systems, Nutrient Management, Yield Stagnation, Nitrogen Sequestration, Livestock-Based Tropical Systems, tropical pastures, Tropical Livestock Management Systems, pastoralism, Smallholder Mixed Crop–Livestock Systems, Extensive Pasture-Based Beef Production, Pasture Degradation, Crop–Pasture Integration, Tropical Tree-Based Systems, Plantation Forestry, Plantation Forestry Species, Agroforestry, Agroforestry Tree Species, Agroforestry Systems, Simultaneous Agroforestry, Sequential Agroforestry, tree crops

Topics: cell structure, cell organization, specimens, diffusion, osmosis, active transport, biological molecules, proteins, DNA structure, water, enzymes, enzyme action, plant nutrition, photosynthesis, leaf structure, human nutrition, diet, alimentary canal, mechanical digestion, chemical digestion, absorption, water uptake, transpiration, translocation, heart, blood, lymphatic vessels. blood, diseases, immunity, human gas exchanges, respiration, aerobic respiration, anaerobic respiration, excretion, co-ordination, human nervous control, sense organs, homeostasis, tropic response, drugs, Medicinal drugs, misused drugs, reproduction, Asexual reproduction, Sexual reproduction, human sex hormones, Sexually transmitted infections, inheritance, chromosomes, genes, mitosis, meiosis, Monohybrid inheritance, Variation, adaptive features, selection, Energy flow, food chains, food web, Nutrient cycles, population size, Biotechnology, genetic engineering, food supply, Habitat destruction, pollution, conservation

Topics: Nigerian Fisheries, hydrology, water resources, Mangrove ecosystem, Fish species, Freshwater Fish, fisheries, fishermen, Fishing season, Fishing gear, Traditional ban, Small Reservoir, Natural Lake, Fishery Statistical Data, Fishery Legislations, Fishery Surveillance

Topics: grain size, particles, water, air, stress in soil, stress in a layer, Darcy's law, permeability, groundwater flow, flotation, flow net, well, stress strain relations, tangent modulus, one-dimensional compression, analytical solution, numerical solution, consolidation coefficient, creep, sheer strength, triaxial test, shear test, pore pressure, stress path, elastic stresses, deformation, boussinesq, newmark, flamant, layered soil, lateral soil, rankine, coulomb, earth pressure, sheet pile wall, limit analysis, strip footing, prandtl, bearing capacity, infinite slope, slope stability, soil exploration, model test, pile foundations