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Rare-earth elements (REEs) have been used in fertilizers in the agriculture of China for about 20 years. They have been shown to be beneficial elements for plants. For example, they have improved the yield and quality for several kinds of crops. This paper reviews the current literature on studies of REEs being used as fertilizers. Some studies have focused(More)
In order to improve the plant ability to resist lead stress, effect of 0.05 mg/l La(NO3)3 on the activities of catalase (CAT), superoxide dismutase (SOD), the level of malondialdehyde (MDA) in wheat seedlings under lead stress was studied. The effect of La3+ on plant growth, chlorophyll content in wheat seedlings after adding 0, 50, 100 mg/l Pb(NO3)3 to the(More)
A method for the determination of methylmercury (MeHg) fluxes across the air-water and air-soil interfaces was developed using an in situ chamber. The MeHg in the air coming out of the chamber was captured by a column containing sulfhydryl cotton fiber adsorbent. MeHg was then desorbed from the column by using 2 mol L(-1) HCl. The MeHg in the effluent was(More)
A personal identity management system based on RFID is widely used in attendance checking. This system is used for keeping the record of staff's of attendance quickly and automatically and the relevant data supplied to faculty staff to look up, which saves a lot of class time to sing upon. This paper introduces the basic function and component of class(More)
We propose a full-duplex MIMO wireless communication system where simultaneous bidirectional communication in the same band is obtained via cancellation of the self-interfering signal. In this paper, first of all, we review the three mechanisms for self-interference cancellation in the full-duplex system, i.e., Antenna cancellation, analog domain(More)
After Rare Earth elements (REEs) was applied into soil, content of exchangeable species decreased obviously with time lapsing. The fastest decrease of content of exchangeable species occurred at wheat tillering stage. A part of the lost content of exchangeable species was absorbed by wheat, and the other part of that was absorbed by soil. The surface(More)
To resist the invasion of harmful external substances, microorganisms tend to attach to submerged surfaces in aquatic systems. The current study focused on the influence of environmental factors (e.g., pH value of the culture, oxidation-reduction condition, light, and cultured age of bacteria on the reduction of mercury(II) to elemental mercury (Hg0) that(More)
The eggs of Urechis unicinctus Von Drasche, an echiuroid, are arrested at P-I stage in meiosis. The meiosis is reinitiated by fertilization. Immunoblotting analysis using anti-ERK2 and anti-phospho-MAPK antibodies revealed a 44 kDa MAP kinase species that was constantly expressed in U. unicinctus eggs, quickly phosphorylated after fertilization, and(More)
In order to study the effects of ubiquitin-proteasome pathway (UPP) on mouse oocyte meiosis and cleavage, oocytes undergoing maturation and parthenogenetic activation and 1-cell embryos were treated with lactacystin, a specific inhibitor of proteasome. The results indicated that the rate of GVBD was not influenced by the treatment, but polar body extrusion,(More)
In this study, we investigated the effects of the anti-leukemia drug Harringtonine (HT) on the levels of centromere proteins and gene expression of centromere protein CenpB in L1210 cells. The intensity of centromere fluorescence, shown by indirect immunofluorescence staining, decreased with HT treatment. Western blot showed that the anti-centromere(More)