... extended the analytical capability of the technique to the determination of similarly low levels of metal contamination in organic solvents and other complex matrices. The new instrument hardware ... match the detection capability of the ShieldTorch System in high purity matrices. This application note deals only with the use of cool plasmas for the analysis...
Ngày tải lên: 05/03/2014, 21:20
... HeLa? Chapter Ten: The Other Side of the Tracks 1. Explain the meaning of the idiom the other side of the tracks.” 2. What do the names of the creek and the river suggest about life in Lacks Town? 3. How ... in the development of the field of cell culture, and the industry of selling HeLa cells and other human biological materials. 11. Who profited moneta...
Ngày tải lên: 13/02/2014, 23:20
Báo cáo khoa học: Endogenous tetrahydroisoquinolines associated with Parkinson’s disease mimic the feedback inhibition of tyrosine hydroxylase by catecholamines doc
... reduced level of activity DA and other catecholamines have a stabilizing effect on the conformation of TH [33]. We therefore com- pared the thermostability of hTH at 37 °C in the pres- ence of NMNorsal, ... ligation between the two hydroxyl residues of their catechol moiety and the iron. The unbound ends of these molecules projected from the binding pocket. Potential...
Ngày tải lên: 07/03/2014, 05:20
Herpesviridae – A Look into This Unique Family of Viruses Edited by George D. Magel and Stephen Tyring docx
... Unique Family of Viruses 30 temporally ordered viral gene expression of HSV-1 is considered from the point of view of the efficiency of the replication of HSV-1. Further, evolution of the temporal ... the previous section, it is shown that the replication of HSV-1 is critically affected by the expression pattern of the viral gene. If the expression ra...
Ngày tải lên: 08/03/2014, 00:20
The RNA world hypothesis: the worst theory of theearly evolution of life
... self-replication of RNA which is the cornerstone of the RNA World. Nevertheless, there is a lot going for the RNA World (Bernhardt summarizes much of the evidence, and I add more below) whereas the other ... existed already at the late stages of the hypothetical RNA World [92]. All this discussion is not pointless play with hypotheses. Realization of the unique statu...
Ngày tải lên: 13/03/2014, 19:12
One dimensional organic nanostructures a novel approach based on the selective adsorption of organic molecules on silicon nanowires
... to the SiNWs. The faintness of the SiNWs, as compared to Fig. 1, is due to the presence of the molec- ular aggregates on top of the SiNWs which decreases the contrast between the SiNWs and the ... surface consisting of SiNWs oriented along the ½ 110 direction of the Ag(110) surface. The THAP molecules, synthesized and purified by the group of Marder [...
Ngày tải lên: 16/03/2014, 15:35
Báo cáo khoa học: Probing the unfolding region of ribonuclease A by site-directed mutagenesis potx
... studied the effect of the mutations on the thermodynamic and kinetic stability. The similarity of the impact on both the thermodynamic and kinetic stabilities suggests a predominant effect on the ... F start is the signal of the substrate before the addition of enzyme, F end is the signal after cleavage of all substrate, and [E] is the concentration of RNas...
Ngày tải lên: 16/03/2014, 18:20
EVALUATING THE SUBSURFACE FATE OF ORGANIC CHEMICALS OF CONCERN USING THE SESOLL ENVIRONMENTAL FATE MODEL potx
Ngày tải lên: 22/03/2014, 14:20
A Generic QSAR for Assessing the Bioaccumulation Potential of Organic Chemicals in Aquatic Food Webs pot
... are exceeded by only 2.5% of the available empirical data. The calibration of the model to the data is designed to produce a QSAR for the BAF in higher trophic levels of a Canadian aquatic food web. The ... application of the BAF-QSAR is in the derivation of water quality guidelines (WQG). In essence, the BAF represents the relationship between the concen- tr...
Ngày tải lên: 22/03/2014, 14:20
Báo cáo khoa học: The thermodynamic analysis of protein stabilization by sucrose and glycerol against pressure-induced unfolding The typical example of the 33-kDa protein from spinach photosystem II docx
... from Fig. 2. The effect of sucrose (m), glycerol (j)andsalt(d)onthe standard volume change of the protein. The concentrations of the additives are expressed in osmolarity. Fig. 3. The unfolding of the ... 4. The unfolding of the 33-kDa protein induced by GdmCl in the presence of different sucrose concentrations. Other conditions as in Fig. 1. Fig. 5. The unfold...
Ngày tải lên: 31/03/2014, 01:20