We summarize a longer campaign of spectroscopic observations of the suspected Maia variable star γ CrB . Previously published data are complemented by two-longitudinal observations. We investigate 1262 CCD spectra for short-term radial velocity variations. Results show that A0 stars can pulsate with periods quite similar to those of the well-known δ Scu stars. From a frequency analysis of the d...

Abbreviations: APTT 5 activated partial thromboplastin time; ASSENT 5 Asessment of the Safety and Efficacy of a New Thrombolytic Agent; CI 5 confidence interval; FTT 5 Fibrinolytic Therapy Trialists’ Collaborative Group; GISSI 5 Gruppo Italiano per lo Studio Streptokinasi nell’Infarto Miocardico; GP 5 glycoprotein; GUSTO 5 Global Utilization of Streptokinase and TPA (alteplase) for Occluded Cor...

PYTHY is a trainable extractive summarization engine that learns a log-linear sentence ranking model by maximizing three metrics of sentence goodness: two of the metrics are based on ROUGE scores against model summaries and one is based on Semantic Content Unit (SCU) weights associated with sentences selected by past peers that were obtained during the Pyramid evaluations. In addition to senten...

Extractive text summarization is the process of selecting relevant sentences from a collection of documents, perhaps only a single document, and arranging such sentences in a purposeful way to form a summary of this collection. The question arises just how good extractive summarization can ever be. Without generating language to express the gist of a text – its abstract – can we expect to make ...

Egypt is currently one of the leading nations especially in the Middle East region with a well-established e-commerce environment and advanced IT infrastructure, but rapid growth of e-commerce will soon occur in other nations with similar consumption patterns. This study tests a model of antecedents (consumer experience, propensity to trust, reputation, perceived website size, ease of use, perc...

approach at each branch of per-tone equalization (PTEQ) structure has been applied for insufficient cyclic prefix (CP) length. Because of the high amount of adaptive filters and their complex adaption process in PTEQ structure, SCU has been proposed. So using this method leads to reduce the computational complexity while the performance is almost being unchanged. Moreover, using set-membership ...

Social benefit organizations face staggering challenges in their efforts to improve the lives of poor people, particularly in the developing world. Programs that offer management training and financial know-how to local leaders working in fields such as health, education, environmental protection, and economic development fill a widely recognized need for these organizations and their supporter...

In the field of multi-document summarization, the Pyramid method has become an important approach for evaluating machine-generated summaries. The method is based on the manual annotation of text spans with the same meaning in a set of human model summaries. In this paper, we present an unsupervised, probabilistic topic modeling approach for automatically identifying such semantically similar te...