The metropolitan area of the Toluca Valley (MATV) extends over an area of 1208.55 km(2) and has 1,361,500 inhabitants making it the fifth highest populated area in the country and the second highest in the state. The MATV has several environmental problems, with regards to the air quality. Particles PM10 and PM2.5 are considered to be the main pollutant due to these particles frequently exceedi...

From the data we have obtained we are led to the conclusion that in the in vivo rabbit eye there is a stream of fluid, in the pararetinal vitreous flowing posteriorly from the corona ciliaris. This floto occurs in a well-ordered pattern best described as a meridional flow pattern. Fluid moves from this stream through the retina apparently in extracellular spaces but faster and with a different ...

Wild populations of Medicago ciliaris and Medicago polymorpha were subjected to four salt treatments 0, 50, 100 and 150 mM NaCl, plant growth and proline concentration in leaves were assessed. The analyzed data revealed significant variability in salt response within and between the two species, depending on the salinity level. It was found that high NaCl concentrations affected all the growth ...

According to the results of an experimental study closely related species Elymus ciliaris and E. amurensis growing in Russian Far East, should be considered as a single polymorphic comprising four varieties, including var. amurensis. Two varieties are described for first time. Descriptions photographs typal specimens given.

Natural hybridization between closely related species in sympatry is an evolutionary process that common orchids. Once seen as a threat to parent species, interspecific genetic change increasingly viewed source of novel variation some ecological contexts. Terrestrial fringed orchids the genus Platanthera contain several clades with high compatibility among and many putative hybrids. We used bia...

now, prevented the confirmation of Manson's discovery, lie was able to prove that in a certain species of the culex genus of mosquito (Culex Ciliaris. Linn.) the metamorphosis of the filaria required seventy to twenty days for its accomplishment. The important difference between his results and those of Dr. Manson is, that whereas Manson stated that only seven days were required for the metamor...

Soil salinity is one of the most serious environmental factors affecting crop productivity around world. We used a morpho-physiological approach to investigate salt responses four Tunisian natural populations Medicago ciliaris. Forty-six lines M. ciliaris were grown under control treatment and 100 mM NaCl. measured 11 quantitative traits shoot root growth during harvest. An analysis variance sh...

A study was conducted using a randomized complete block design to determine feed intake, live-weight changes, milk yield and cost of milk production in Friesian cows fed napier grass (NG) at 10 weeks (MNG) or 15 weeks (ONG) of maturity. The MNG or ONG was supplemented with equal amounts of sunflower (SFBC) or poultry litter (PLBC) based concentrates in experiment 1, while in experiment 2, the M...