The mol-ecule of the title compound, C(17)H(10)O, is nearly planar, the largest deviation from the mean plane being 0.06 Å. The crystal structure is governed by π-π inter-actions, with centroid-centroid distances ranging from .559 to 3.730 Å.

Insubria QSAR PaDEL-Descriptor model for prediction of Esters toxicity in Daphnia magna 1.2.Other related models: E.Papa, F. Battaini, P.Gramatica. Ranking of aquatic toxicity of esters modelled by QSAR, Chemosphere (58), 2005, 559-570.[9] 1.3.Software coding the model: [1]PaDEL-Descriptor 2.18 A software to calculate molecular descriptors and fingerprints http://padel.nus.edu.sg/software/padel...

Hill activity (oxygen evolution with ferricyanide as the electron acceptor), light-induced absorbance changes at liquid nitrogen temperature associated with the primary activity of photosystem II, and fluorescence yield changes at both low temperature and room temperature were measured with lyophilized spinach chloroplasts before and after extraction with hexane and reconstitution with beta-car...

5-HT) plays an important role in the central nervous system and that 5-HT participates in neurological disorders such as depression, anxiety or schizophrenia. Several drugs affecting serotonergic neurons are administered as therapy of these diseases. 5-HT is also a significant factor of regulation of food intake. A serotonin-releasing drug fenfluramine and selective serotonin reuptake inhibitor...

Recalling the PageRank markovian approach, the idea is to find an equilibrium vector P of probabilities of a random walker being in vertex V after k steps when k → ∞. The process of finding the vector P ends when P does not change more than a given δ. So If we consider all the bow tie, we might have to wait for a bigger amount of steps to find the final P, or we can have no equilibrium point at...

Spread spectrum communications were originally developed for military purposes to capitilize on their desirable antijam (AJ) and low probability of intercept (LPI) properties. Since 1980s and early 1990s, though, application of the same in civilian communications has been worked upon. CDMA, based on spread spectrum communications technology, has been recognized as a viable alternative to FDMA a...

BACKGROUND Clinical practice guidelines are being developed for a variety of reasons. To date, there has been little investigation of the perspectives of those who are recommended to use them. AIM The survey reported here set out to investigate how familiar general practitioners are with a range of published guidelines, to assess whether they have used them, and to describe their attitudes to...