pBR322 had twoselectable markersand was smaller and thus more stable. It became the plasmid vector of choice when Sutcliffe determined its complete DNA sequence (see below). Hybrid vectors such ascosmidsthat combined attractive features of both plasmids and phage vectors were engineered (Collins and...
The decarboxylation of imidazolidin-2-one-1-carboxylate anion 2 has been investigated via combined quantum and statistical mechanics methodology. Monte Car... O Acevedo,Jorgensen, WL - 《Journal of Organic Chemistry》 被引量: 59发表: 2006年 Viewpoint: How large is the carbon isotope fractionatio...
Litterfall increased significantly over the past 27 y but litterfall of various litter components showed different temporal trends. Changes in proportions of various litter components, combined with the inherent chemistry differences among them, made litter carbon (C): nitrogen (N) and lignin:N ratios...
They recommended carefully planned and explicit practical lessons in which hands-on activities were combined with a minds-on approach. Likewise, Agustian and Seery [27] contended that the use of well-designed chemistry pre-laboratory tasks could bring about a robust conceptual understanding and ...
273 combine combinability, combination, combinations, combined, combines, combining, recombinant, recombination, recombinations, recombine, recombined, recombines, recombining Y N 274 wash unwashable, unwashed, washable, washed, washer, washers, washes, washing Y N 275 exhibit exhibited, exhibiting, exhi...
The samples collected represented the residential sewage lagoon overflow (RLO), animal lot lagoon overflow (ALLO), the combined overflows (RLO and ALLO), and Gans Creek (upstream, midstream and downstream positions). The frequency of detection of ENRO was 90% for RLO and 100% for both ALLO...
Scenarios 2. Identify the most positive/negative components of a specific molecule: obtain the combined fragments with the most positive/negative attribution through the combination of BRICS substructures and Murcko substructures; Scenarios 3. Mine the SAR for the desired properties (i.e., global expl...
This paper investigated the effects of teaching one of the most fundamental concepts of Chemistry `Atom and its Structure' using Traditional Teaching (TT), Traditional Teaching supplemented with One-Size-Fits-All Analogies (TTOA) and Traditional Teaching supplemented with Multiple Analogies (TTMA) on...
摘要: Provides a one-minute organic chemistry course intended to increase the lay public's understanding and appreciation of chemistry. Built-in aversion of people to chemistry; Use the One-Minute Professor in cocktail parties, long rides, etc.; Parts of the one-minute course....
As such, PET imaging is routinely combined with computed tomography for anatomical orientation and attenuation correction9. Fig. 1: Principle of positron emission tomography (PET) imaging. 1) Radionuclide generation. 2) Tracer synthesis. 3) Quality control (QC). 4) Intravenous tracer injection. 5...