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: Environmental Microbiology, water pollution, water pollution prevention, soil pollution, soil pollution effects, soil pollution prevention, Waste Management Resources, waste disposal methods, landfill, incineration, Plasma gasification, composting, waste minimization, Biological reprocessing, Waste Management methods, sewage, wastewater treatment, Water purification, Water-Borne diseases, chemical oxygen demand, biological oxygen demand

Topics: Analytical Techniques In Agriculture, safety quality, precision, accuracy, Animal Feed Sample Analysis, Soil Samples Analysis, Plant Sampling, soil sampling, soil sample preparation, microscopy, Atomic Absorption Spectrophotometer, High-performance liquid chromatography, Thin Layer Chromatography, Gas Chromatography, Polymerase Chain Reaction, Gel Electrophoresis, Hematology, Serum Biochemistry, Sample Conservation, sample Preservation, Cryopreservation

Topics: ecosystem, populations, population growth, predation, symbiosis, community stability, nutrition circulation, allelochemics, soil development, soil classification, vegetation, watersheds, biogeochemistry, pollution, radioisotope contamination, pesticides, heavy metals, air pollution, lake production, eutrophication, retrogression, community evolution, human ecology, marine productivity, detritus, biosphere

Topics: Soil microbiology, soil habitats, lithosphere, bacteria, Nitrogen fixers, disease suppressors

Topics: Semantics, ambiguity, predication, verbs, logic, language comparison, cognition, formal semantics, sentence meaning, compositionality, descriptive meaning, connotations, lexemes, lexical ambiguity, compositional ambiguity, contextual ambiguity, deixis, determination, presuppositions, predication, verbs, nouns, adjectives, predicate logic notation, thematic roles, verbs, argument structure diatheses, aspect tense, logical basis, logical relations, sentential logic, meaning relations, synonymy, hyponymy, oppositions, lexical fields, meaning components, semantic features, semantic formulae, semantic primes, Barsalou frames, Japanese numerals

Topics: soil water, Salinity, temperature, pH, Radiation, pollution, Benthic region, marine bacteria, Tundra soils, Salt lakes, extreme aquatic environments, Glaciers

Topics: Building Materials Principal Properties, Structural Clay Products, Brick's Classification, Brick's Testing, Clay Tiles, Terracotta, Porcelain, stoneware, Earthenware, Glazing, Rocks, Stones, Rock-forming minerals, Rock's Classification, Stone Durability, Stones Application, Stone seasoning, wood, wood Products, Trees Classification, Trees growth, Timber Preservation, Timber testing, Timber Structure, Timber's Fire Resistance, Properties of wood, wood products, wood-products applications, Material for making concrete, Cements, Portland cement, Raw materials chemical composition, Cement Hydration, Rate of Hydration, Hydration water requirement, Cements manufacturing, Cements testing, Cement Types, Cements storage, Aggregates, Aggregates classification, Aggregates characteristics, Deleterious Materials, Organic Impurities, Soundness, Aggregates Thermal Properties, Fine Aggregates, Coarse Aggregates, Cinder Aggregates, Mixing water Quality, Effect of mixing water from different source, Water for washing aggregates, Curing water, Lime, Limestone's Impurities, Limestone's Storage, Lime Vs Cement, Pozzolanas, Concrete, water-cement ratio, workability, Maturity, Defects, Re-vibration, Rheology, Non-destructive testing, Admixture for concrete, Concrete Mix design, Building Mortars, Ferrous Metals, Non-Ferrous Metals, Ceramic Materials, Polymeric Materials, Paints, Enamels, Varnishes, Tar, Bitumen, Asphalt, Gypsum, Special Cements, Cement Concretes, Adhesives, Water proofing materials, Fiber, Geosynthetics, Composite Materials, Smart materials, Asbestos, Thermoc0ol, Heat Insulating Materials, Sound Insulating Materials.

Topics: Concrete technology, Cements, Modern cements history, Portland cement manufacturing, Portland cement wet process manufacturing, Portland cement dry process manufacturing, Cement chemical composition, Cements hydration, Heat of hydration, Calcium silicate hydrates, Calcium hydroxide, calcium aluminate hydrates, hydrated cements structure, Water requirement for hydration, Cement types, ASTM cements classification, Ordinary Portland cement, Rapid hardened cement, Extra rapid hardening cement, Portland slag cement, Quick setting cement, super sulphated cement, low heat cement, Portland pozzolana cement, coloured cement, hydrophobic cement, masonry cement, expansive cement, Cement testing, Aggregates, aggregates testing, Aggregates form igneous rock, aggregates from sedimentary rocks, aggregates from metamorphic rock, aggregate crushing value, aggregates impact value, aggregate abrasion value, Deval attrition test, Dorry Abrasion test, Los Angeles test, modulus of elasticity, bulk density, specific gravity, Sieve analysis, Aggregates testing, Water, water qualities, Sea water for mixing concrete, Admixture, construction chemicals, Plasticizers, water reducers, Workability, Plasticizers action, Superplasticizers classification, Factors affecting workability, Superplasticizers types, Fresh concrete, Fresh concrete water content, Fresh concrete mix proportions, Aggregates sizes in fresh concrete, Aggregates shape, Surface texture, Admixture use in fresh concrete, Workability measurement, Slump test, k-slump test, aggregates grading, compacting factor test, flow test, flow table apparatus, vee bee consistometer test, setting of concrete, Manufacture of concrete process, Concrete compaction, Concrete curing, Concrete strength, Water-cement ratio, Strength gaining with age, Concrete maturity concept, Bond strength, High strength concrete, Elasticity, Creep, Shrinkage, Aggregates elastic properties, Modulus of Elasticity, Dynamic modulus of elasticity, Poison's ratio, Creep rheological representation, Creep measurement, Factors affecting creep, Aggregate influence, Mix proportion influence, Shrinkage, Plastic Shrinkage, Drying Shrinkage, Moisture movement, Autogenous Shrinkage, Carbonation shrinkage, Concrete Durability, Strength to Durability relationship, Concrete volume change, Durability definition, durability significance, Permeability, Cement paste permeability, Concrete permeability, Plastic shrinkage cracks, Settlement cracks, Thermal shrinkage, Hardened concrete testing, Concrete mix design, Special concrete, concrete methods

Topics: Public Finance, welfare economics, market failure, public goods, public choice, externalities, political economy, direct democracy, representative democracy, education, public pending, cost-benefit analysis, present value, benefit-cost ration, private sector project evaluation, social discount rate, public expenditure, social insurance, income maintenance, health care market, health insurance, Medicare, Medicaid, health care reform, social security, income redistribution, distribution of income, expenditure incidence, income maintenance, work incentives, earned income tax credit, supplemental security income, unemployment insurance, food stamps, child nutrition, housing assistance, taxation, income distribution, Partial Equilibrium Models, Optimal Commodity Taxation, Optimal Income Taxation, United states revenue system, personal income tax, income, personal taxation, labor supply, saving, Portfolio Composition, corporation tax, State Corporation Taxes, Corporation Tax Reform, deficit finance, Retail Sales Tax, Value-Added Tax, Hall-Rabushka Flat Tax, wealth taxes, multigovernment public finance, property tax, Intergovernmental Grants