DFT study of anisotropy effects on the electronic properties of diamond nanowires with nitrogen-vacancy center.

In the development of quantum computing and communications, improvements in materials capable of single photon emission are of great importance. Advances in single photon emission have been achieved experimentally by introducing nitrogen-vacancy (N-V) centers on diamond nanostructures. However, theoretical modeling of the anisotropic effects on the electronic properties of these materials is almost nonexistent.

Alternating chemotherapy and accelerated split-course irradiation in locally advanced nonsmall cell lung carcinoma.

Background: The prognosis of patients with locally advanced nonsmall cell lung carcinoma (NSCLC), which is usually unresectable, is very poor, and patient survival rarely reaches 1 year. However, prolonged survival correlated with objective responses has been observed among patients with intrathoracic disease treated with a combination of cytotoxic drugs and local irradiation despite the lack of consensus regarding the schedule of such combined therapy. From October 1989 to November 1993, a Phase II study was conducted to evaluate the tolerability and efficacy of alternating chemotherapy and accelerated split-course radiotherapy in the treatment of patients with locally advanced NSCLC.

[Pleural pressure during thoracocentesis in patients with pleural neoplasms].

In 45 patients with cancerous pleural effusion, thoracocentesis was performed according to the following technique : after local anaesthesia (5 ml of 2% lidocaine) in the posterior part of the 6th intercostal space, thoracocentesis was carried out with a blunt trocar connected to a water manometer. The pleural pressure was measured before removal of the fluid (Po). Then three different techniques of drainage (active suction at -- 80 or -- 40 mmHg or underwater sealed drainage) were randomized.

[Diagnosis of localized pulmonary opacities by transbronchial biopsy].

In order to assess the value of transbronchial biopsy (BTB) in the diagnosis of local pulmonary opacities, we have carried out a prospective study from October 1981 to August 1982 on 180 patients with a localised pulmonary opacity radiographically. 73 presented with a tumour visible fibreoptically in whom the diagnosis was made by bronchial biopsy. In 56 patients the clinical and biological picture were not suggestive of a malignancy and the lesion disappeared in 15 days on antibiotic treatment.

[Clinical aspects and course of 38 cases of malignant pleural mesothelioma observed in the Marseilles region].

Epithelial or mixed mesotheliomas were detected in 38 patients in the region of Marseilles over a period of 9 years. Though an occupational element was involved in 80% of cases, no history of contact with asbestos could be obtained in certain of the patients. Confirmation of diagnosis requires wide pleural biopsies, because of the high level of false negatives and false positives from cytology and pleural needle biopsy.

[Review of today's treatment of bronchial small cell anaplastic cancers (author's transl)].

The median survival time of untreated patients with small cell anaplastic carcinoma of the lung does not exceed three months. An important improvement in survival and disease-free period has been achieved by some new therapeutic combinations including chemotherapy alone or radiotherapy and chemotherapy. These recent results are reviewed in this paper, and a new treatment schedule is presented.