the main source of heavy metals in soil is the use of urban and industrial waste water, synthetic phosphate fertilizers, sludge from sewage treatment plants. most heavy metals accumulate in the top soil and in the long term, their increased concentration in the soil and accumulation in the plants. the quantity or level of absorption in plants, depends not only on the concentration levels of the...

background & aim: achillea filipendulina is one of the most important species of the family asteraceae and, it considered as one of the most valuable medicinal and ornamental plants. environmental factors affected on quality and quantity of the essential oil of medicinal and aromatic plants. so, selecting of appropriate season for harvesting can lead to increase quality and quantity yield. ...

During spring, summer and winter seasons, Sistani donor cows, with normal reproductive status, were superovulated and embryos were recovered non-surgically on day 7. Grade A blastocyst embryos were either transferred fresh (spring) or frozen (summer and winter). Recovered embryos during summer and winter were exposed to glycerol and frozen using conventional method. During spring season, recipi...

West Nile Virus is an arthropod-borne flavivirus that appeared for the first time in New York City in the summer of 1999 and then spread prolifically within birds, with over 200 species having been infected. Mammals, such as humans and horses, do not develop sufficiently high bloodstream titers to play a significant role in transmission, which is a reason for considering the mosquito–bird cycle...

We describe the design of an instrument for the investigation of sample dynamics: the SPring-8 High Resolution Beamline (BL35XU). The primary purpose of the beamline is high resolution (,meV) inelastic X-ray scattering measurements. The secondary purpose is nuclear resonant scattering measurements. Construction of the beamline will begin in the summer of 1999 and commissioning will start in the...

Money and Banking is a junior level course offered at most higher education institutions as part of an economics or business related curriculum. In 1999, the author prepared the course to be delivered over the Internet in an asynchronous manner, during a summer session. The course was offered again with this format during the fall of 2000, and a third time during the spring of 2001. In this pap...

Agression in male Barbary Macaques (Macaca sylvanus). At AAP, an all-male group of 17 Barbary Macaques is housed. Although aggression is noted to vary from time to time, it is not clear whether the amount of aggression is related to the season changes. Therefore, a study will performed to determine whether or how aggression is related to season or other factors. This group is planned to be reho...

line 5: “A field campaign was conducted on landfast first-year sea ice in the Canadian Arctic Archipelago during the summer of 2012...” Mention that sea ice here is undeformed here, as you do in Section 3.

Financial markets, particularly those for credit instruments in the more mature financial centres, have witnessed major turmoil since the summer of 2007. Already a number of suggestions have been made by policy makers and market participants to improve the functioning of the financial system. However, unlike earlier periods of stress or crisis, there have been no major calls for new data or imp...