596 research outputs found
Clinical Application of 3D Imaging for Assessment of Treatment Outcomes
This paper outlines the clinical application of cone beam computed tomography (CBCT) for the assessment of treatment outcomes and discusses current work to superimpose digital dental models and 3-dimensinal photographs. Superimposition of CBCTs on stable structures of reference now allow assessment of 3-dimensional dental, skeletal, and soft-tissue changes for both growing and nongrowing patients. In addition, we describe clinical findings from CBCT superimpositions in assessment of surgery and skeletal anchorage treatment
Optimizing the fast Rydberg quantum gate
The fast phase gate scheme, in which the qubits are atoms confined in sites
of an optical lattice, and gate operations are mediated by excitation of
Rydberg states, was proposed by Jaksch et al. Phys. Rev. Lett. 85, 2208 (2000).
A potential source of decoherence in this system derives from motional heating,
which occurs if the ground and Rydberg states of the atom move in different
optical lattice potentials. We propose to minimize this effect by choosing the
lattice photon frequency \omega so that the ground and Rydberg states have the
same frequency-dependent polarizability \alpha(omega). The results are
presented for the case of Rb.Comment: 5 pages, submitted to PR
Descriptions of Cottoniella fusiformis, Branchioglossumcf. minutum and Frikkiella searlesii (Rhodophyta, Ceramiales) from the Brazilian continental shelf
Flood pulse and spatial dynamics of mercury in sediments in Puruzinho lake, Brazilian Amazon
Farinha de vĂsceras de aves na alimentação de alevinos de piavuçu (Leporinus macrocephalus)
Soil biochemistry and microbial activity in vineyards under conventional and organic management at Northeast Brazil.
The SĂŁo Francisco Submedium Valley is located at the Brazilian semiarid region and is an important center for irrigated fruit growing. This region is responsible for 97% of the national exportation of table grapes, including seedless grapes. Based on the fact that orgThe SĂŁo Francisco Submedium Valley is located at the Brazilian semiarid region and is an important center for irrigated fruit growing. This region is responsible for 97% of the national exportation of table grapes, including seedless grapes. Based on the fact that organic fertilization can improve soil quality, we compared the effects of conventional and organic soil management on microbial activity and mycorrhization of seedless grape crops. We measured glomerospores number, most probable number (MPN) of propagules, richness of arbuscular mycorrhizal fungi (AMF) species, AMF root colonization, EE-BRSP production, carbon microbial biomass (C-MB), microbial respiration, fluorescein diacetate hydrolytic activity (FDA) and metabolic coefficient (qCO2). The organic management led to an increase in all variables with the exception of EE-BRSP and qCO2. Mycorrhizal colonization increased from 4.7% in conventional crops to 15.9% in organic crops. Spore number ranged from 4.1 to 12.4 per 50 g-1 soil in both management systems. The most probable number of AMF propagules increased from 79 cm-3 soil in the conventional system to 110 cm-3 soil in the organic system. Microbial carbon, CO2 emission, and FDA activity were increased by 100 to 200% in the organic crop. Thirteen species of AMF were identified, the majority in the organic cultivation system. Acaulospora excavata, Entrophospora infrequens, Glomus sp.3 and Scutellospora sp. were found only in the organically managed crop. S. gregaria was found only in the conventional crop. Organically managed vineyards increased mycorrhization and general soil microbial activity
Immunoperoxidase technique using an anti-Leishmania (L.) chagasi hyperimmune serum in the diagnosis of culture-confirmed American tegumentary leishmaniasis
Pericarp structure in Banisteriopsis C.B.Rob. and Diplopterys A.Juss. (Malpighiaceae): new data supporting generic segregation
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