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Four new norditerpenoid alkaloids, geniculatines A (1), B (4), C (7) and D (8), were isolated from the roots of Aconitum geniculatum Fletcher, and their structures were elucidated by spectral methods.
BACKGROUND & AIMS Recent observational studies showed that post-operative aspirin use reduces cancer relapse and death in the earliest stages of colorectal cancer. We sought to evaluate the cost-effectiveness of aspirin as an adjuvant therapy in Stage I and II colorectal cancer patients aged 65 years and older. METHODS Two five-state Markov models were… (More)
In an RFID-assisted track and trace information network, the same set of data may be stored in distributed locations. Data conflicts occur when the values of distributed data copies are modified locally with different values causing data inconsistency. In order to restore data consistency, the values of distributed data copies have to be synchronized to the… (More)
In this investigation, 202 Chinese college students were asked to complete the 48-item revised Marlowe-Crowne Social Desirability Scale (Crowne & Marlowe, 1960) which contains 32 items from the original version for the purpose of rating item desirability and estimating the percentage of others in general who would behave in the manner described by these… (More)
Synthetic refrigerants such as CFCs and HCFCs are harmful to the ozone and could cause greenhouse effect. Refrigerant alternatives research is very urgent. CO<sub>2</sub> as a natural working fluid has zero ODP and its GWP=1, is receiving more and more attention in the refrigeration field. Transcritical CO<sub>2</sub> refrigeration cycle is presently an… (More)
—Nowadays, one of focus is the studies of the relationship between exposure to electromagnetic fields and human health. This paper proposed a predict model that evaluate the time workers in high voltage electric field (HVEF) long-term work in safety. With the economical improvements power industry is developing in high speed. More and more people are… (More)
From the roots of Aconitum sinomontanum, five new norditerpenoid alkaloids, sinomontanitines A (1) and B (2), sinomontanines A (3), B (4) and C (5), were isolated together with the known alkaloids lappaconitine (6) and ranaconitine (7), The structures of the new alkaloids were determined by spectral analysis.
The display of antibody gene library on the surface of E. coli filamentous phage offers a new method of obtaining antibodies against specific antigens. In the paper, it is reported that a phagemid for phage display antibody, named after pFUW80, characterized expressing scFv either secretly or stickily. With a series of designed PCR primers, heavy-chain and… (More)
A new diterpenoid alkaloid, racemulotine (1), was isolated from the whole plants of Aconitum racemulosum Franch var. pengzhouense, and its structure was elucidated by 1D- and 2D-NMR spectra.