BACKGROUND, AIMS The purpose of the present study was to compare and relate the microbial composition of supra and subgingival plaque in 23 adult periodontitis subjects (mean age 51 +/- 14 years). METHODS A total of 1,170 samples of supra and subgingival plaque were collected from the mesial aspect of every tooth (up to 28 supra and 28 subgingival samples) from each subject and evaluated for ...

The overall conformation of the title mol-ecule, C(14)H(11)BrO(3)S, is L-shaped, as seen in the value of the dihedral angle formed between the terminal benzene rings of 75.44 (13)°. The presence of C-H⋯O inter-actions leads to the formation of linear supra-molecular chains along the a-axis direction in the crystal structure. These are connected into supra-molecular arrays in the ab plane via C-...

ADULATION of Addison and Bright in Britain's medical circles resounds only slightly less loudly than Harveian songs of praise. These men carry a large share of legendary British medicine in their names. Of recent years Harvey's worthiness of such a role has been the subject of several studies; as a result he has, if possible, gained in stature. What of Addison? The question is prompted by the a...

As Tikhonov and Samarskiï showed for k = 2, it is not essential that Ath-order compact difference schemes be centered at the arithmetic mean of the stencil's points to yield second-order convergence (although it does suffice). For stable schemes and even k, the main point is seen when the k th difference quotient is set equal to the value of the k th derivative at the middle point of the stenci...

The anion-cation interactions are optimized against the experimentally determined solution activity derivative at 2.5 m. This property directly depends on ion-ion interactions, thus making it an excellent target for parameterization. We opt for this indirect approach because directly parameterizing anion-cation interactions from quantum mechanical calculations is not feasible, as described belo...

Several authors have speculated that (1) the pharmaceutical, genetic or other technological enhancement of human mental capacities could result in the creation of beings with greater moral status than persons, and (2) the creation of such beings would harm ordinary, unenhanced humans, perhaps by reducing their immunity to permissible harm. These claims have been taken to ground moral objections...

We report the case of a 58-year-old patient, with a three vessel disease with unstable angina. Due to refractory angina, she was referred to urgent coronary artery bypass graft (CABG). In the preoperative evaluation were found severe obstructive lesions in the brachiocephalic trunk origin, left common carotid origin and left internal carotid artery. The patient underwent CABG, supra-aortic trun...

research investment is recovered from sales of the resulting publications; the depth of understanding of supra-organi-sational systems (S-OS) is enhanced by consultancy work. The projects under-taken provide valuable information to user-organisations in the private sector, and in Federal and State Governments; to product and service providers and consultants ; to industry associations, such as ...

In spite of significant advancements in imaging technology, monitoring, and microsurgical techniques, complete and safe removal of tentorial meningiomas remains a challenge for most neurosurgeons. Classifications of tentorial meningiomas are revised. The combined supra/infratentorial approach to resect tentorial meningioma is discussed. This approach provides a wider exposure of the supra/infra...

This paper investigates the impacts of and incentives towards vertical integration or separation between an infrastructure manager and a network operator when downstream services may require the access to multiple networks. We show that returns-to-scale and the intensity of competition in the final markets are key to understanding the impact of vertical integration in this context. We also disc...