plant sources of anti-cancer agents are plants, the derivatives of which have been shown to be usable for the treatment or prevention of cancer in humans. in the 1950s, scientists began systematically examining natural organisms as a source of useful anti-cancer substances. it has recently been argued that 'the use of natural products has been .
prunus laurocerasus is a widely cultivated ornamental plant, used for planting in gardens and parks in temperate regions worldwide. it is often used for hedges, as a screening plant, and as a massed landscape plant. most cultivars are tough shrubs that can cope with difficult growing conditions, including shaded and dry conditions, and which respond well to pruning.
the plant has a series of spaces called stages, each containing a heat exchanger and a condensate collector. the sequence has a cold end and a hot end while intermediate stages have intermediate temperatures. the stages have different pressures corresponding to the boiling points of water at the stage temperatures. after the hot end there is a container called the brine heater. when the plant .
whole genome sequencing is ostensibly the process of determining the complete dna sequence of an organism's genome at a single time. this entails sequencing all of an organism's chromosomal dna as well as dna contained in the mitochondria and, for plants, in the chloroplast.in practice, genome sequences that are nearly complete are also called whole genome sequences.
juncaceae is a family of flowering plants, commonly known as the rush family. it consists of 8 genera and about 464 known species of slow-growing, rhizomatous, herbaceous monocotyledonous plants that may superficially resemble grasses and sedges. they often grow on infertile soils in a wide range of moisture conditions.
breeding for heat stress tolerance in plants. heat stress due to increased temperature is a very important problem globally. citation needed occasional or prolonged high temperatures cause different morpho-anatomical, physiological and biochemical changes in plants.the ultimate effect is on plant growth as well as development and reduced yield and quality.
a genetic screen or mutagenesis screen is an experimental technique used to identify and select for individuals who possess a phenotype of interest in a mutagenized population. hence a genetic screen is a type of phenotypic screen.genetic screens can provide important information on gene function as well as the molecular events that underlie a biological process or pathway.
lomatium dissectum is a perennial herb reaching up to 1.4 meters tall, growing from a thick taproot. the leaves are mostly attached near the base of the plant, spreading with petioles up to 30 centimeters long and large blades divided into many small, narrow segments.
a lysimeter from greek λύσις loosening and the suffix -meter is a measuring device which can be used to measure the amount of actual evapotranspiration which is released by plants usually crops or trees . by recording the amount of precipitation that an area receives and the amount lost through the soil, the amount of water lost to evapotranspiration can be calculated.
in computer science, digital image processing is the use of a digital computer to process digital images through an algorithm. as a subcategory or field of digital signal processing, digital image processing has many advantages over analog image processing.it allows a much wider range of algorithms to be applied to the input data and can avoid problems such as the build-up of noise and .
the elisa was the first screening test widely used for hiv because of its high sensitivity. in an elisa, a person's serum is diluted 400 times and applied to a plate to which hiv antigens are attached. if antibodies to hiv are present in the serum, they may bind to these hiv antigens. the plate is then washed to remove all other components of .
plant sources of anti-cancer agents. plant sources of anti-cancer agents are plants, the derivatives of which have been shown to be usable for the treatment or prevention of cancer in humans.
a bar screen is a mechanical filter used to remove large objects, such as rags and plastics, from wastewater. it is part of the primary filtration flow and typically is the first, or preliminary, level of filtration, being installed at the influent to a wastewater treatment plant.they typically consist of a series of vertical steel bars spaced between 1 and 3 inches apart.
a bar screen is a mechanical filter used to remove large objects, such as rags and plastics, from wastewater. it is part of the primary filtration flow and typically is the first, or preliminary, level of filtration, being installed at the influent to a wastewater treatment plant. they typically consist of a series of vertical steel bars spaced between 1 and 3 inches apart.
plant breeding is the science of changing the traits of plants in order to produce desired characteristics. it has been used to improve the quality of nutrition in products for humans and animals. plant breeding can be accomplished through many different techniques ranging from simply selecting plants with desirable characteristics for propagation, to methods that make use of knowledge of .
in the fields of medicine, biotechnology and pharmacology, drug discovery is the process by which new candidate medications are discovered. historically, drugs were discovered by identifying the active ingredient from traditional remedies or by serendipitous discovery, as with penicillin. more recently, chemical libraries of synthetic small molecules, natural products or extracts were screened in intact cells or whole organisms to identify substances that had a desirable therapeutic effect in a