In studies of radiation from partially coherent sources the so-called quasi-homogeneous (QH) model sources have been very useful, for instance in elucidating the behavior of fields produced by thermal sources. The analysis of the fields generated by such sources has, however, been largely carried out in the framework of scalar wave theory. In this paper we generalize the concept of the QH sourc...

We extend the definition of quasi-finite complexes by considering not necessarily countable complexes. We provide a characterization of quasi-finite complexes in terms of L-invertible maps and dimensional properties of compactifications. Several results related to the class of quasi-finite complexes are established, such as completion of metrizable spaces, existence of universal spaces and a ve...

During the days August 22-24, 2013 has been held in Harbin (China) an International Consensus Conference aimed to improve the quality and the reporting of the randomized controlled trials (RCTs) in infertility and subfertility field. I, as Italian scientist with experience in clinical infertility trials, was invited to have a speech on the Italian experience in RCTs, with particular regard for ...

Randomized controlled trials in surgery are notoriously difficult to design and conduct due to numerous methodological and cultural challenges. Over the last 5 years, several UK-based surgical trial-related initiatives have been funded to address these issues. These include the development of Surgical Trials Centers and Surgical Specialty Leads (individual surgeons responsible for championing r...

BACKGROUND Assessing the risk of bias of randomized controlled trials (RCTs) is crucial to understand how biases affect treatment effect estimates. A number of tools have been developed to evaluate risk of bias of RCTs; however, it is unknown how these tools compare to each other in the items included. The main objective of this study was to describe which individual items are included in RCT q...

The motivation to engage students has been a challenge in teaching and learning statistics. This study investigates the effectiveness of online peer learning in enhancing students’ academic achievement and promoting their motivation. The researcher employed a quasi-nonequivalent (preand posttest) control group design to investigate the effectiveness of online peer learning. The participants in ...

BACKGROUND Evidence-based medicine has been advanced by the use of standards for reporting the design and methodology of randomized controlled trials (RCT). Indeed, without this information it is difficult to assess the quality of evidence from an RCT. Although a variety of statistical methods are available for the analysis of recurrent events, reporting the effect of an intervention on outcome...

BACKGROUND AND PURPOSE The methodological quality of randomized controlled trials (RCTs) is commonly evaluated in order to assess the risk of biased estimates of treatment effects. The purpose of this systematic review was to identify scales used to evaluate the methodological quality of RCTs in health care research and summarize the content, construction, development, and psychometric properti...

Randomized controlled trials (RCTs) have historically been considered the primary source of evidence to support decision-making in market access and reimbursement. However, thanks to significant progress in capturing data through computerized systems and making these data available, real-world evidence (RWE) has been increasingly considered by manufacturers and payers. Despite initiatives and r...

We investigate examples of quasi-spectral triples over two-dimensional commutative sphere, which are obtained by modifying the order-one condition. We find quasi-Dirac operators and calculate the index paring with a representant of K-theory class to prove that the quasispectral triples are mutually inequivalent. MSC 2000: 58B34, 46L87, 34L40