A nutrient is a substance in food used by the body to endorse standard maintenance, repair and growth. Nutrients are attained from food and throughout digestion, these nutrients are then broken down to proportions that can be absorbed by the body and then are transported in the blood. Within these sets of nutrients, are precise nutrients that are designated as the essential nutrients. Essential nutrients are fundamentally nutrients that humans cannot synthesize such as certain amino acids that...
The roles of microbes in the soil environment are complex, diverse, and crucial to the functioning of every ecosystem. The ecosystem services provided by soil microbes, including bacteria, are to develop soil structure for adequate ventilation and drainage of the soil environment. Drainage and ventilation is important for groundwater recharge and filtration. Soil structure is also an important factor in determining nutrient availability to plants, microbes and other soil organisms. Microbes...
Novel 5-alkyl 1,3,4-oxadiazole 2-thione derivatives were synthesized by the converted of carboxylic acid to ester by esterfication or secondary amine to ester by treated with ethylchloroacetate to give compound(1) this compound treated with hydrazine hydrate to give acid hydrazide (2) and with potassium hydroxide and carbon disulfide to give 1,3,4-oxadiazole derivative compounds (3) this compounds treated with different primary amine and with terephthaldehyde to give mannich bases...
Parkinsons disease is the second commonest late life neurodegenerative disease after Alzheimers disease. It is prevalent throughout the world and predominantly affects patients above 60 years of age. It is caused by progressive degeneration of dopamine containing cells (neurons) within the deep structures of the brain called the basal ganglia and substantia nigra [1]. Both motor and non-motor symptoms exist in PD, although the cardinal features and the diagnosis of PD are based purely on the...
Breast cancer starts from breast tissue, usually in the inner lining of the milk ducts or lobules which supply ducts with milk (Sariego J., 2010). It is becoming increasingly difficult to ignore the effect of 1/8 women in the world. So far, breast cancer has been known as one of most famous cancer disease, with an incidence rate higher than twice that of colorectal cancer or cervical cancer, and its incidence rate just lower than lung cancer. (Norazizah Shafee, et al, 2008) Like other cancer...
3D ICs using through Silicon Via are the latest trend in the market. TSV can be used for 3D stacking at different integration levels: from via first (front end process) to via last (back end process). The electrical performance of the device, refill materials and cost are affected by the type of via integration that is chosen. The paper discusses the Deep Reactive Ion Etching (DRIE) process as applied to design vias of different sizes, shapes and depth. Using the DRIE technique, very high...
The enlarged lymph node sometimes causes other symptoms by pressing against a vein or lymphatic vessel (swelling of an arm or leg), a nerve (pain, numbness, or tingling), or the stomach (early feeling of fullness). These symptoms are nonspecific. This means that they could be caused by any number of conditions unrelated to cancer. For instance, they could be signs of the flu or other viral infection, but in those cases, they would not last very long. In lymphoma, the symptoms persist...
True polycythaemia could be primary or secondary. The secondary causes result in polycythaemia either by causing hypoxia or for this reason stimulation to increase red cell production or by increasing stages of erythropoietin (the hormone stimulating red cell production) - eg: tumors (5). Primary polycythaemia is known as Polycythaemia rubra vera, or simply polycythaemia vera which is a type of abnormal bone marrow growth (1,2,3).Primary polycythaemia (Polycythaemia rubra vera)People who suffer...
The term phenotypic plasticity is derived from a combination of phenotype; an organisms' observed characteristics influenced by genes and environmental conditions, and plasticity; the ability to be shaped or formed. Put them together and you've got phenotypic plasticity; the ability of an organism to produce different phenotypes in response to distinct environmental conditions or changes (Massimo Pigliucci). Phenotypic plasticity includes the physiological, morphological and behavioral changes...
Abstract We prepared a PMMA-PLLA-PMMA triblock copolymer using ATRP. We analyzed the structure and properties of the copolymer with IR, GPC, 1HNMR, thermogravimetric (TGA), and differential scanning calorimetry (DSC). We improved the thermal stability by modifying the samples: the initial temperature of thermal decomposition increased from 244 ËšC to 350 ËšC and the Tg increased from 58 ËšC to 107 ËšC. We employed a new wash-extraction method to remove Cu from the ATRP. The method achieved...