نتایج جستجو برای: 1754

تعداد نتایج: 472  

Journal: :Chemical reviews 2005
Michael E Jung Grazia Piizzi

3. Synthetic Applications 1746 3.1. Pericyclic Reactions 1747 3.1.1. Diels−Alder Cycloadditions 1747 3.1.2. Dipolar Cycloadditions 1749 3.1.3. Ene Reactions 1750 3.1.4. Claisen Rearrangements 1750 3.2. Radical Cyclizations 1750 3.3. Transition-Metal-Catalyzed Cyclizations 1753 3.4. Ring-Closing Metathesis 1754 3.5. Electrophilic Cyclizations 1755 3.6. Other Cyclizations 1756 4. Biochemical and ...

2009

The tale of a lame, one-eyed, toothless camel 1 may not, at first glance, seem an auspicious start for ground-breaking discoveries of penicillin, X-rays and chocolate chip cookies. However, when Horace Walpole coined the word serendipity in 1754, based on the tale of ‘The Three Princes of Serendip’ and the aforementioned camel, he was giving name to the accidental sagacity (i.e. accidental wisd...

2008
Da Qing Liu Ji Min Wu Ying Chen

We develop a new approach to construct the operator on lattice for the calculation of glueball mass, which is based on the connection between the continuum limit of the chosen operator and the quantum number J of the state studied. The spin of the state studied in this approach is then determined uniquely and directly in numerical simulation. Furthermore, the approach can be applied to calculat...

Journal: :MDCCC 1800 2022

This paper focuses on the artworks commissioned to Antonio Canova by Portuguese patrons in 1805: monument Alexandre de Sousa Holstein, ordered his son, young diplomat Pedro Holstein (1784-1850), and statue of Genius National Independence for Prince John VI. New information about these projects has been uncovered through analysis unpublished letters, highlighting influence writer art connoisseur...

1999
Knut A.G. Olsen

We present results on the analysis of background field stars found in HST WFPC2 observations of six of the old globular clusters of the Large Magellanic Cloud. Treated as contaminants by the globular cluster analysts, we produce V − I, V color-magnitude diagrams of the field stars and use them to explore the LMC’s star formation history. The photometry approaches V ∼ 26, well below the turnoff ...

Journal: :Revista Española de Antropología Americana 2011

Journal: :Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases 2014
E Braun K Hussein Y Geffen G Rabino Y Bar-Lavie M Paul

We evaluated changes in the epidemiology of catheter-related bloodstream infections (CRBSIs) between 1996 and 2012 in a tertiary care centre in Israel. The cohort included 1754 episodes of CRBSI. The incidence of CRBSIs decreased throughout the study period, whereas 30-day mortality following bacteraemia increased. There was a linear shift toward predominance of Gram-negative bacilli throughout...

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