diamond and graphite are two crystalline forms of carbon

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Ngày tải lên: 05/09/2013, 09:08

... process of dissecting the inputs to a decision. It clarifies the degree of understanding of issues involved and helps to ensure that choice selection is reasoned and balanced. It is the basis of risk management. We ... choices are identified as possible solutions and how the choices are ultimately compared. Step 2 is the identification of options from which the selection will ultimately be made. The breadth and ... costs and benefits of each alternative based on criteria, and standards established by the person doing the analysis . Roller blades are less expensive than a car , but a lot more work and slower. Step...

Ngày tải lên: 10/12/2013, 17:15

... apartments, life-care-communities (LCCs), care retirement communities (CCRCs), cohousing) What are the new forms of housing and wherein lay their qualities and differences? What group of elderly is ... mental and social well-being, and not merely the absence of disease or handicap` (WHO, 1948) Within this scheme, the components of body functions and structure, as well as activity and participation, ... into two units (aging) Parents: Discussion about a new built shared home with friends (downsizing) because current house is too large and the garden causes a lot of work and takes a lot of time....

Ngày tải lên: 14/02/2014, 07:20

... Definitions of Ratings and Other Forms of Opinion Fitch Ratings – Definitions of Ratings and Other Forms of Opinion – Nov 2012 38 A.6 Additional Usage of Primary Credit ... Definitions of Ratings and Other Forms of Opinion – Nov 2012 4 Understanding Credit Ratings – Limitations and Usage Ratings assigned by Fitch are opinions based on established criteria and methodologies ... Definitions of Ratings and Other Forms of Opinion – Nov 2012 49 Criteria Scope and Limitations of Fund Quality Ratings The primary focus of this criteria report is on funds that are actively...

Ngày tải lên: 16/02/2014, 03:20

... apply. Microsoft is not a network provider. Instead, we offer a variety of Internet products and services that ride atop of and use a broadband transport. Our products and services that make use of VerDate ... time during and adjacent to network programs. These programs (such as ‘‘CSI’’ and ‘‘American Idol’’) often command large audiences, and the sale of local ad- vertising slots during and adjacent ... choice and competition in the video market. The era of broadband video has arrived. Verizon is eager to de- liver it to our customers. We are also excited by the opportunities with software and...

Ngày tải lên: 18/02/2014, 00:20

... 6. Control of the period and amplitude of Src oscillations by the activities of the activatory phosphatase RPTP and inhibitory kinase Csk. Dependence of the oscillation amplitude (A) and period (B) ... oscillatory pattern of Src activity, as shown in Fig. 3C. A single, stable steady state of Src activity exists within two large areas that are marked by number 1 in the plane of the Csk and RPTP concentrations. ... state. Figure 4B helps us understand this excitable behav- ior by presenting the pulse of Src activity in the plane of the inactive and active fractions, s i and s 1 . If the duration of the stimulus exceeds...

Ngày tải lên: 18/02/2014, 11:20

... evidence for existence of two distinct HSF1 isoforms in rainbow trout and the formation of heterotrimers of these isoforms in vitro. Materials and methods Cell culture and animals Rainbow trout ... that the two HSF1 isoforms form both homo- and heterotrimers, there are four potential assemblies of HSF1 trimer, namely, two homotrimers (a 3 and b 3 ) and two heterotrimers (a 2 b 1 and a 1 b 2 ). ... are two distinct isoforms of HSF1 in rainbow trout cells and that these two isoforms can form heterotrimers. These findings suggest that a unique molecular mechanism, which functions through two...

Ngày tải lên: 19/02/2014, 12:20

... and thermostability of two novel rare MCAD mutants, R256T and K364R, which are strik- ingly different in their molecular behavior. The first mutation, R256T is a nonconservative substitution of ... O’Reilly 1, *, Brage S. Andresen 2 and Paul C. Engel 1 1 Department of Biochemistry and Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin, Ireland 2 Research ... Purifi- cation and characterization of short-chain, medium- chain, and long-chain acyl-CoA dehydrogenases from rat liver mitochondria: isolation of the holo- and apoenzymes and conversion of the apoenzyme...

Ngày tải lên: 20/02/2014, 02:21

... Szewczuk 1 and Wojciech Bal 1,2 1 Faculty of Chemistry, University of Wroclaw, Poland; 2 Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland A comparative study of thermodynamic ... DAHKam and VIHN, and stability constants (log a values) of Cu(II)-VIHN, Cu-DAHKam and Ni-DAHKam systems. The parameters of CD and EPR spectra of all major complexes present at pH 7 .4 are provided ... DAHKam-Cu(II) (B) and DAHKam-Ni(II) (C), calculated for 0.5 m M concentrations of peptides and metal ions. The intensities of CD bands of 4N complexes (constructed by adding intensities at extremes of d–d bands...

Ngày tải lên: 22/02/2014, 04:20

... tiết về từ đó) There are two benches to the left of the shop. There are two benches to the left of the shop 3. Tại sao câu trên lại dịch như vậy? -“There are two benches” – (có ... danh từ số nhiều thì "to be" được chia là are, were…”). Ví dụ: There is a boy and two girls in the classroom. There are two girls and a boy in the classroom. Trong câu trên “benches”- ... *There are two benches to the left of the shop. Hình thức ngữ pháp : cấu trúc: “there are/ is….to the left of ” – (có cái gì ở bên trái của cái gì). ...

Ngày tải lên: 26/02/2014, 00:20

... mannose (Man3) of all yeast GPIs [9] and of certain human GPIs [10–12], and additional side-branching phospho- ethanolamines (EthN-Ps) may be added to the first and second mannoses of yeast [13–15] and mammalian GPIs ... viabil- ity of yeast cells [3–5], for embryonic development in mammalian cells [6], and for viability of the parasites Leishmania mexicana [7] and the bloodstream form of Trypanosoma brucei [8]. GPIs are ... Dr Donald Comb of New England Bio- labs for financial support. PO is supported by National Institutes of Health Grant GM46220. The authors thank B. Taron and P. Colussi for advice and technical assistance. References 1...

Ngày tải lên: 07/03/2014, 16:20

... The homology model of CX 3 C signature amidase from S. solfataricus. The side chains of the putative catalytic residues are shown. Ser171 and Lys96, shared by the two triads are in red. 141 145 ... 5B). One of its amino groups is about 2.6 A ˚ from the Oc atom of Ser171 and 2.5 A ˚ from the thiol group of Cys145. Even taking into account all of the limitations of molecular models of proteins ... that the members of this second putative triad are in the correct relative orientation. In our model, the Oc atom of Ser171, the amino group of Lys96 and the thiol group of Cys145 are sufficiently close...

Ngày tải lên: 07/03/2014, 21:20

... Hydrogenase activity of wild-type cells and of deletion mutants of the hydrogenase accessory genes and DhupE. (B) RT-PCR with RNA of wild-type and all the deletion mutants of the hyp genes and hoxW. For ... Effect of deletion of hupE on metal uptake Homologues of hupE ⁄ ureJ are widespread among bacteria and are frequently found in hydrogenase or urease gene clusters. Because urease and hydrogenase are ... grown with the addition of nickel up to a concentration of 15 l M. Fig. 3. Agarose gel electrophoresis of RT-PCRs of transcripts of hypB1, hypB2, hypA2B2, ureG and ureC. RT-PCR of wild-type RNA was performed...

Ngày tải lên: 08/03/2014, 08:20