PURPOSE We aimed to evaluate ultrasonography (US) findings for Breast Imaging Reporting and Data System (BI-RADS) category 4 lesions using BI-RADS US lexicon and determine the positive and negative predictive values (PPV and NPV) of US with respect to biopsy results. METHODS Sonograms of 186 BI-RADS 4 nonpalpable breast lesions with a known diagnosis were reviewed retrospectively. The morphol...

The internal rate of return (IRR) is generally considered inferior to the net present value (NPV) as a tool for evaluating and ranking projects, despite its inherently useful comparability to the cost of capital and the return of other investment opportunities. We introduce the ‘‘selective IRR’’, a return criterion which, as a selection of an extended set of possible IRRs, is NPV-consistent. Th...

Background/introduction Symptomatic localized adenomyosis is generally treated conservatively, or with more radical treatments such as hysterectomy. An effective non-invasive therapy is needed, especially for those who wish to preserve their fertility. MR-guided Focused Ultrasound ablation (MRgFUS) has been shown as an effective treatment for symptomatic uterine leiomyomas with a large non-perf...

Tungsten carbonyl dimers bridged with oligo(2,5-dialkoxy-1,4-phenylene vinylene)s through coordination with pyridine as the end groups, expressed as [W(CO)5]2-(nPV-Py2) [n = 1, 3; alkoxy = O(CH2)2OSi(i)Pr3], have been prepared from W(CO)5(THF) with nPV-Py2 in THF, and their structures were determined by X-ray crystallography. Both increase in absorbance and redshift in the λmax values in [W(CO)...

Purpose - This work aims to analyze the assertiveness of net present value (NPV) and real options theory (ROT), at moment decision making for investments in renewable energy projects, considering 244 winning projects auctions reserve that occurred between 2011 2015.Design/methodology/approach –This is a quantitative study used data from 150 wind power 94 photovoltaic available on ANEEL´s websit...

In rural areas, the electricity supply is affected by problems such as low quality and limited access in some regions. The use of renewable sources, with decentralized generation, can offer an alternative to existing scenario. objective this work perform a technical economic analysis off-grid photovoltaic systems, without energy storage, intended for irrigation. Photovoltaic systems from differ...

Accessible online at: www.karger.com/journals/res Although negative pressure ventilation (nPV) is an effective therapy for patients with restrictive lung disease [1] its position in the management of chronic ventilatory failure due to chronic obstructive pulmonary disease (COPD) is less clear. In the largest study to address this question Shapiro et al. [2] randomised 184 patients to receive ei...

In the paper a model of non-financial investment profitability calculation is presented. It based on concept quantile risk measures and real option valuation. Application Monte Carlo simulation allows to receive probability distribution Net Present Value (NPV) implement like Cash Flow at Risk (CFaR), (NPVaR) or Expected Shortfall (ES) in relation NPV (ES (NPV)). The main contribution article im...

The multi-endpoint cytokinesis-blocked micronucleus assay is used for assessing chromosome aberrations. We have recently reported that this assay is extremely sensitive to genetic damage caused by the tobacco-specific nitrosamine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) and that the binucleated cells with micronuclei, nucleoplasmic bridges, and nuclear buds in lymphocytes (chromosom...