cadmium (cd), known as a non-essential heavy metal, can cause oxidative stress in plants. in this study, an attempt was carried out to find out whether cd-induced oxidative and microscopic changes could be observed in the early stage of seedling growth. seeds of brassica napus (cvs. zheda 619 and zs 758) were germinated in vitro at 0, 100, 200, 300, and 500 μm cd concentrations in dark for 48 h...

of the many diverse arts that flourished during the third millennium bc, textiles played an especiallysignificant role in society. archaeological textiles offer an important source of material cultural testimony fordaily life in ancient times- relating simultaneously to agriculture, pastoralism, trade, migration, ritual, and soforth as well as to craft technologies. the study of the techniques ...

The ab-initio analysis of a continuous system starts with the microscopic theory of the material, usually expressed in terms of partial differential equations, while a system analysis starts with its global properties and interconnections. These two ends must meet for an accurate and effective model of continuous systems. The macroscopic interaction between components is consistently defined by...

To reveal the mechanism of the easy discretization and low damage in kernel dispersal, this paper analyzes the microscopic analysis of beak structures and finds that maxillary outside cells of the beak are dense and hard. Besides, the cuticle wrapping on maxilla of chicken's beak can reduce corn kernels damage in the discrete process of ear. From force test of corn ear, we find that value of x ...

sarcocystis is an obligatory intracellular protozoan parasite which can infect humans and animals. sheep are intermediate hosts of four sarcocystis species: sarcocystis tenella, sarcocystis gigantea, sarcocystis arieticanis, and sarcocystis medusiformision. the purpose of the study was to determine the molecular identification of the macroscopic and microscopic cysts of sarcocystis in sheep. in...